HGJ 2-1986 Technical regulations for energy-saving design of calcium carbide
Some standard content:
Ministry of Chemical Industry of the People's Republic of China
Design Standard
975404
Technical Regulations for Energy-saving Design of Calcium Carbide
HGJ2-86
(Trial)
Standard replacement network: moo,bz8o0-comGeneral Principles
2 Comprehensive Energy Consumption of Calcium Carbide Products
3 Electric Furnace Power Consumption and Total Coke Consumption per Unit of Calcium Carbide Products Energy-saving Measures
5 Electrical
Appendix: (84) Annex 4 of Document No. 22 of the Chemical Industry Department of China "Comprehensive Energy Consumption of Calcium Carbide Products Energy consumption calculation method)
Preparation instructions
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Ministry of Chemical Industry of the People's Republic of China
Design standards
Technical regulations for energy-saving design of calcium carbide
HGJ2-86
(Trial)
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The "Technical regulations for energy-saving design of calcium carbide" is a design standard approved and promulgated for trial by the Ministry of Chemical Industry. The contents of this regulation include: General principles: Comprehensive energy consumption of calcium carbide products: Electric furnace power consumption and total coke consumption per unit product of calcium carbide: Energy-saving measures: Electricity: Appendix and preparation instructions.
This regulation is edited by China Tianjin Chemical Engineering Company. The compilers are Comrade Chen Yang and Comrade Wu Zhaokun, the reviewers are Comrade Gao Guogou and Comrade Luo Meiling, the reviewers are Comrade Xuan Zhengang and Comrade Shen Junhan, and the person who decides the matter is Comrade Zhuo Ketao. Standard Find Jie Network w.bs Products Socom Chemical
Design Standard
Technical Regulations for Energy-saving Design of Calcium Carbide
Editor: Tianjin Chemical Engineering Company of China Approved by the Ministry of Chemical Industry
January 1987
1 General Principles
HGJ2-86
Page 1
Total 6 Pages
1.1 Energy is the main material basis for my country's socialist modernization construction. The policy of saving energy and rationally using energy must be implemented now and in the future. Calcium carbide production consumes a lot of energy, and there are many available by-product energy and waste heat resources. In the design of calcium carbide engineering, saving energy and rationally using energy is an important long-term task for designers. 1.2 These regulations apply to the design of new construction, reconstruction and expansion projects of enterprises that produce calcium carbide by the electric heating method: In the future, there should be a special chapter on energy conservation in the design task book (feasibility study) and preliminary design documents, explaining the energy-saving measures taken and the expected results, and listing the comprehensive energy consumption per unit product of calcium carbide, the total coke consumption, and the electric furnace power consumption. 1.3 In the design of new construction, reconstruction and expansion projects in the future, the comprehensive energy consumption per unit product of calcium carbide, the total coke consumption, and the electric furnace power consumption should strive to reach the first-level indicators, and ensure that the second-level indicators are achieved. When the third-level indicators are adopted, special approval must be obtained from the competent department.
The comprehensive energy consumption per unit product of calcium carbide, the total coke consumption, and the electric furnace power consumption of each level shall be in accordance with the provisions of 2.6.3.3.2.3 and 3.1.3. 1.4 New construction. Reconstruction and expansion projects should adopt new energy-saving processes, new technologies and high-efficiency equipment, and backward processes with high energy consumption and electromechanical products and equipment that have been eliminated by the country shall not be adopted. 1.5 Attention should be paid to improving the energy structure and rationally utilizing energy. Under reasonable process conditions, waste heat should be fully utilized. When selecting fuel, the principle of replacing oil with coal should be implemented. 1.6 The following energy detection instruments should be set in the design. 1.6.1 Select the primary energy (coal, stone, natural gas, etc.), secondary energy (electricity, coke, coal gas, steam, etc.) and energy-consuming working fluids (water, oxygen, nitrogen, compressed air, etc.) in the calcium carbide production area. 1.6.2 Self-produced secondary energy (calcium carbide furnace gas, etc.) and energy-consuming working fluids. 1.6.3 Distribution of energy and energy-consuming working fluids in the calcium carbide production area 1.7 The introduced technology should have energy-saving advantages. When introducing energy-saving technology or taking energy-saving measures, it should also meet the relevant national safety, health and environmental protection requirements. 1.8. Newly built, modified and expanded closed calcium carbide furnaces should tend to be large and medium-sized, and the capacity should generally not be less than 15000kVA. Newly built and expanded calcium carbide projects must use closed calcium carbide furnaces. 1.9 When using energy-saving technology, its energy-saving effect and investment should be evaluated for the whole plant's technical and economic performance, and the static payback period should be controlled within six years.
In addition to implementing these provisions, the design shall also comply with national energy-saving regulations and abide by relevant national regulations. 1.10
Comprehensive energy consumption of calcium carbide products.
2.1 The comprehensive energy consumption of calcium carbide products refers to the energy consumption obtained by comprehensively calculating the various energy consumed by the calcium carbide production system, the auxiliary production system and the supporting production system serving the calcium carbide production during the enterprise's planned statistical period.
2.2 Energy includes primary energy (washing, limestone pool, natural gas, etc.) and secondary energy (electricity, coke, petroleum coke, electrode paste, steam, etc.) and energy-consuming working fluids (water, nitrogen, compressed air, etc.): 2.3 Calculation scope of comprehensive energy consumption of calcium carbide products: the total energy consumption of production systems, auxiliary systems and ancillary systems within the calcium carbide production boundary from the transportation of limestone, carbon materials, etc. to the transportation of calcium carbide finished products. Energy consumed for living purposes is not included.
2.4, the calculation method of comprehensive energy consumption of calcium carbide products is shown in the appendix of this regulation: (84) Chemical Industry Department Document No. 22 Annex 4 "Calculation Method of Comprehensive Energy Consumption of Calcium Carbide Products". 2.5 The equivalent calorific value and standard coal equivalent value of various energy sources are shown in Table 1. Equivalent calorific value and standard coal equivalent value of various energy sources
Heat (with fixed 8)
Electric board survey (actual approx.)
Fresh firewood water
Softened water
Compressed air (less than 6×105) (less than 6 kg/m2)
Calcium carbide furnace gas
Yan r (4~10)×10\ beat) www.bzxz.net
(4~10 kg/ Weight of rice (2)
Equivalent calorific value
(kilocalories)
11840 (2828 hand calories)
28470 (6800 kcal)
25121 (6000 calories)
2512 (600 calories)
14235 (3400 calories)
1172 (280 kcal)
18678 (4700 kcal)
11723 (2800 kcal)
11723 (2800 kcal)
41888 (10000 kcal)
3768 (900 kcal)
Note: The above is supplemented according to the provisions of the Fourth Middle School of Chemical Industry No. 22 (34). Table 1
Converted to standard coal
(in grams)
..2.6: Comprehensive energy consumption per unit product of calcium carbide: 2.6:1 Comprehensive energy consumption per unit product of calcium carbide refers to the comprehensive energy consumption consumed in producing 1 ton of standard calcium carbide (gas output is equivalent to 3001/kg), and the unit is expressed in kilograms of standard coal/ton. When converting standard calcium carbide, it is converted based on qualified output. 2.6.2 Calculation of comprehensive energy consumption per unit product of calcium carbide Formula Total comprehensive energy consumption (kg standard coal)
Comprehensive energy consumption per unit product of calcium carbide (kg standard coal/ton) Qualified product converted to standard calcium carbide quantity (ton)
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2.6.3 Comprehensive energy consumption index of total electric carbide products 2 Comprehensive energy consumption index per unit product of calcium carbide
Total energy consumption per unit product of calcium carbide (kg standard coal/ton) 2950
Page 3
Electric furnace good consumption and total coke consumption per unit product of calcium carbide3
3.1 Electric furnace electricity consumption per unit product of calcium carbide
Total 6 pages
3.1.1 Electric furnace electricity consumption per unit product of calcium carbide is the process power consumption of producing 1 standard calcium carbide (gasification is converted to 3001/kg), expressed in units/ton. When converted to standard calcium carbide, qualified products are used. Output conversion, 3.1.2 Calculation formula for electric furnace power consumption per unit product of calcium carbide Electric furnace power consumption per unit product of calcium carbide (kWh/ton) = 3.1.3
Total electric furnace power consumption (kWh)
Qualified product converted to standard calcium carbide (ton)
Electric furnace power consumption indicators per unit product of calcium carbide are shown in Table 3 Electric protection power consumption indicators per unit product of calcium carbide
Electric protection power consumption per unit product of calcium carbide (text/statistics) 3.2 Total coke consumption per unit product of calcium carbide
3.2.1 The total coke consumption per unit product of calcium carbide refers to the total amount of carbon materials transported into the lime burning furnace and the production of calcium carbide in the production of 1 ton of standard calcium carbide (gasification total conversion of 300/kg). The amount of carbon materials transported into the furnace is counted from the time of entering the calcium carbide production boundary and converted to or 84%C dry coke calculation, but does not include the consumption of electrode cuttings, and the unit is expressed in kilograms/ton. When converting to standard calcium carbide, the conversion shall be based on qualified output: 3.2.2: Calculation formula for total coke consumption per unit product of calcium carbide Total coke consumption per unit product of calcium carbide (kg/ton): Total amount of carbon materials transported into the carbide furnace (kg): Calcium carbide density and total carbon material consumption for carbide furnace (kg): Qualified product equivalent to standard carbide quantity (ton) Total coke consumption per unit product of calcium carbide is shown in Table 4. Total coke consumption per unit product of calcium carbide is shown in Table 4. Total coke consumption per unit product of calcium carbide is shown in Table 4. Note: The above indicators are not applicable to the production system of purchased lime. Table 4 for free download of various industry standards and industry materials from the website of the Ministry of Industry and Information Technology. Page 4
Total 6 pages
4.1 Sealed calcium carbide furnace
HGJ2-86
Energy-saving measures
From the analysis of the heat of calcium carbide production, it can be seen that the by-product furnace gas of each ton of calcium carbide is about 400m3 (Nm3) [calorific value is about 11723kJ/m3 (2800kcal/Nm3)], which is about equivalent to 160kg of standard coal. Only a sealed calcium carbide furnace can recycle all the furnace gas: it has obvious advantages in energy saving. Therefore, the new construction and expansion of calcium carbide projects must adopt a sealed calcium carbide furnace to recycle the furnace gas and use it after purification.
The recycled furnace gas is used as fuel for gas-burned limestone, which is the most reasonable furnace gas utilization method within the calcium carbide enterprise. However, the furnace gas can also be used as fuel within the enterprise, such as boiler fuel or fuel for drying carbon materials, and the furnace gas can also be used as output energy.
4.2 Hollow electrode technology
During the processing, transportation and storage of ash and carbon materials, about 10-15% of powder will be produced. The hollow electrode technology can be used to utilize the powder, which not only reduces the total coke consumption of calcium carbide per unit product, but also saves electrode paste, which is beneficial to the energy saving of electric furnaces. Hollow electrode technology is a very good energy-saving measure. It must be used in newly built enterprises: In the reformed and expanded enterprises, it is advisable to adopt hollow electrode technology, otherwise the recycling and utilization measures of powder must be considered: 4.3 Gas-burned lime density
In calcium carbide enterprises, the amount of furnace gas used by gas-burned lime kilns and the amount of furnace gas produced by calcium carbide production are basically balanced in theory. Furnace gas, as the fuel for gas-burned lime density, not only saves energy but also eliminates furnace gas pollution. In addition, the quality of gas-burned lime is uniform and the reaction is clean, which can reduce the electric furnace electricity. Therefore, when the new Ci and Zheng expansion, enterprises with conditions should adopt gas-burned lime density to produce lime. When using gas-burned lime density, a high thermal efficiency density should be selected. 4.4 Furnace gas purification technology
The dust content of calcium carbide furnace gas is about 80~150g/m3 (Nm\). In order to benefit the furnace gas, the furnace gas must be purified. The process method of furnace gas purification can be dry or wet. The furnace dust after dry purification and the sewage after wet purification contain CN, which must be treated to meet the requirements of environmental protection. 4.5 Use fine materials to reduce the power loss of impurities and side reactions a
4.5.1 Strictly control the quality of limestone raw materials and ensure the lime quality. In addition to meeting the general requirements of calcium carbide limestone, limestone with CaCO, ≥97% and -MgO ≤0.6% should be selected in places where conditions permit. Measures should be taken to clean up the mud and sand entrained in the limestone. The amount of raw lime burned: gas burning density ≤4%, mixed burning width <6%, and the activity of lime should be increased as much as possible. The qualified rate of lime particle size entering the calcium carbide furnace should be ≥85%, and there should be no visible impurities. The product contains 45,2 preferred coke 2#
Metallurgical coke is the main carbon material for producing calcium carbide. The fixed carbon should be ≥84% and the ash content should be ≤15%. The coke entering the calcium carbide furnace must be dried to make the moisture content ≤1%, and the qualified rate of the coke particle size entering the furnace should be ≥85%. 4.5.3"Improve the structure of carbon materials
Anthracite has high resistance and low price, which can increase the resistance in the furnace and reduce costs. Petroleum coke has high fixed carbon, high resistance and low ash content. Where conditions permit, a certain amount of high-quality anthracite or petroleum coke can be added to the carbon material to make the structure of the carbon material more reasonable, so as to increase the resistance in the furnace and reduce power consumption. 4.5.4 Strengthen the management of electrode paste
Page 5
Qualified electrode paste must be used in calcium carbide production, and closed calcium carbide furnaces must use closed electrode pastes. A total of 6 pages
The electrode paste should be placed in a rainproof and dustproof warehouse. After the electrode paste is added to the electrode tube, there should be a movable cover on the top of the electrode tube to prevent dust from falling in.||tt| |4.6 Recovery of waste heat from calcium carbide production
The waste heat that can be utilized in calcium carbide production includes: waste heat from calcium carbide out of the furnace, waste heat from furnace gas, waste heat from cooling water, etc., which can be utilized according to the actual situation of the enterprise
When considering waste heat recovery in the design, a technical and economic evaluation of waste heat recovery should be made. 4.7 Reasonable process and electrical parameters should be selected in the design of calcium carbide furnaces. To improve thermal utilization and reduce power consumption, reasonable main electrical parameters such as secondary voltage, current, voltage ratio, potential gradient, etc. must be selected in the design. Reasonable main process parameters such as electrode diameter, electrode center circle true diameter and furnace diameter must be selected.
4.8 Microcomputer technology
Large and medium-sized closed calcium carbide furnaces and gas-fired kilns should gradually adopt microprocessors for production management and production control to accurately adjust process parameters, reduce consumption, and improve Product quality. 4,9 Site selection for new calcium carbide plants
New calcium carbide plants should be located close to limestone mines to shorten transportation distances and reduce transportation energy consumption; at the same time, they should be located close to power stations to shorten transmission distances and reduce transmission energy consumption losses; and they should be located close to railways, roads or waterways. This facilitates the transportation of raw materials and products and reduces transportation energy consumption. Therefore, the site selection should be comprehensively evaluated. 5
5.1 Power supply for calcium carbide furnaces
5.1.1 Calcium carbide furnaces should be supplied with high voltage deep into the load center to reduce line losses and improve power supply quality. When using 35 volts for power supply, the product of capacity and distance should not exceed 250 MVA-km, otherwise it should be compared with the 110 kilovolt solution and a better voltage level should be adopted. In order to facilitate penetration into the load center, distribution devices of 35 volts and below should be used. Use indoor power distribution equipment. As for the 110 kV power distribution equipment, whether to use indoor power distribution equipment should be determined after technical and economic comparison. 5.1.2 When selecting the capacity of the transformer, in addition to meeting the required load, the operating mode of the transformer should be compared to make the selected transformer have low operating costs and high efficiency. 5.1.3 In order to strengthen economic accounting and do a good job in energy metering and management, monitoring and metering instruments should be installed according to the minimum economic accounting unit, and a maximum demand meter should be installed at the power supply incoming line. 5.2 Selection of calcium carbide furnace transformer
5.2.1. The electrical parameters of the transformer should meet the process operation requirements: 5.2.2 The on-load voltage regulation method of the transformer should adopt the conjugate method of the autotransformer and the main transformer, the primary side tap voltage regulation method of the main transformer, and the voltage regulation method of the main transformer and the Shenlian transformer. 5
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Calcium carbide furnaces should give priority to low impedance and low loss transformers. 5.2.4 For large and medium-sized calcium carbide furnaces, the secondary outgoing line of the transformer should be cross-water-cooled copper tubes. 5.2.5 For large and medium-sized calcium carbide furnaces, technical and economic comparisons should be made, and three single-phase transformers should be used first. 5.3 Short network
Short network design should be based on technical and economic comparisons, and the materials, shapes, sizes and arrangements of the short network conductors should be reasonably selected to make the conductor length as short as possible, the resistance and reactance as small as possible, the three-phase impedance as balanced as possible, and the short network loop layout as compact as possible.
5.3.1 Adopt a short-circuit wiring system that forms a triangle on the electrode. 5.3.2 Eliminate the collector ring, which not only simplifies the short-circuit, but also improves the working condition of the soft copper sheet (soft cable), so that the current of each conductor tends to be balanced.
5.3.3 The copper tubes of the short-circuit are arranged crosswise, and the best exchange position is selected. One end is exchanged to reduce the gap between the copper tubes. Improve the characteristics of the short-circuit.
5.3.4 The current density of each conductor
Water-cooled copper tubes and water-cooled copper wires 2.5~3A/mmSoft pick and copper wire
0.9~1.1A/mm
5.3.5 The supporting components and accessories of the short-circuit should be made of non-magnetic materials, and ferromagnetic materials should be kept away from the short-circuit as much as possible. 5.3.6 Try to use new materials such as oxygen-free copper tubes. 5.4 Reactive power compensation of calcium carbide furnace installation
5.4.1 The reactive power compensation capacity should make the power factor before the transformer reach or exceed 0.90. 5.4.2 For the reactive power compensation of calcium carbide furnace installation, priority should be given to compensation on the low voltage side, but a technical and economic comparison should be made with the compensation schemes on the high voltage side and the medium voltage side, and the best one should be selected. 5.4, 3 When setting reactive power compensation, the influence of high-order harmonics on it should be considered, and appropriate building area should be reserved during design to facilitate the adoption of necessary measures.
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so.com (84) Chemical Industry Department Document No. 22 Appendix 4 Appendix:
Calculation method for comprehensive energy consumption of calcium carbide products
I. Definition and classification of comprehensive energy consumption of calcium carbide products 1.The comprehensive energy consumption of calcium carbide products is the energy consumption obtained by comprehensively calculating the various energy actually consumed during the planned statistical period of the enterprise.
2. The comprehensive energy consumption of calcium carbide products is divided into three categories, namely, total comprehensive energy consumption, unit comprehensive energy consumption and comparable unit comprehensive energy consumption.
2. Calculation method of comprehensive energy consumption of calcium carbide products 1. Total comprehensive energy consumption of calcium carbide products
The total comprehensive energy consumption of calcium carbide products is the total energy consumption obtained after comprehensive calculation of the energy consumed by the enterprise in the production of calcium carbide products during the planned statistical period. The energy consumed by unqualified products is also included in the total comprehensive energy consumption. Various energy sources include primary energy (such as coal, oil, natural gas, etc.) and secondary energy (such as electricity, coke, steam, electrode aerosol, etc.) and energy-consuming working fluids (such as water, gas, nitrogen, compressed air, etc.). When calculating the total comprehensive energy consumption of calcium carbide products, various energy consumed by the calcium carbide production system and the auxiliary systems and ancillary production systems serving calcium carbide production are included. Energy used as raw materials for calcium carbide (such as coke, petroleum coke and anthracite) is also included. In the calcium carbide production system, if there is energy recovery and output outside the calcium carbide boundary, it shall be deducted from the total comprehensive energy consumption. Be careful not to double-count or count it when calculating. The various energy sources included in the total comprehensive energy consumption of calcium carbide products are stipulated as follows: (1) Calcium carbide electricity consumption
includes the sum of process electricity, power electricity and lighting electricity. The electricity consumption is calculated according to the charging meter of the power supply department. When the location of the charging meter is far away from the calcium carbide furnace, it can be negotiated with the power supply department to deduct part of the line loss. (2) Carbon raw materials for the production of calcium carbide
include coke used as raw materials. Petroleum coke, anthracite and electrode paste, etc. When calculating, various carbon raw materials (except electrode paste) are converted to 84% of dry basis fixed carbon, and the calorific value is calculated according to the equivalent calorific value. The quantity is measured at the first process after entering the calcium carbide production boundary.
(3) Fuel for burning lime.
The amount of lime consumed is calculated based on the total material and converted to Cac92%. The fine part produced by the crushing is not deducted, but the fuel consumed by lime not used for calcium carbide is not included. The calorific value of the fuel used for burning lime (such as coke, anthracite, combustible gas, etc.) is calculated based on the measured lower calorific value, or temporarily converted according to the specified coefficient. The consumption of fuel is measured at the first process entering the calcium carbide production area.
The unit of purchased lime does not calculate the fuel for burning lime. However, when filling in the comprehensive energy consumption of calcium carbide, it should be noted that "external lime is purchased to distinguish it". (4) Fuel for drying coke The calorific value of the fuel reported for drying coke is calculated based on the actual low-level heat basket, or temporarily calculated based on the coefficient. The quantity is measured at the first process after entering the calcium carbide production boundary. The coke is dried with the waste heat in the calcium carbide production, and the fuel consumption is not calculated. (5) Various energy-consuming working fluids consumed in the calcium carbide production system include cooling water, oxygen, nitrogen, compressed air, etc., and their calorific value is calculated based on the specified equivalent calorific value. (6) Energy consumed by the auxiliary production system includes all the energy consumed in the calcium carbide production boundary from the time the lime enters the factory to the time the calcium carbide finished product is put into storage. Energy consumed in each process of calcium carbide production (such as power electricity, lighting electricity, water, nitrogen, compressed air, etc.), but please note that the energy calculated in the previous item should not be recalculated.
(7) Energy consumed by ancillary production systems, including energy consumed by maintenance sections, laboratories, control rooms, warehouses and offices within the calcium carbide boundary (such as power electricity, lighting electricity, water, nitrogen, compressed air, etc.): (8) Energy exported to the outside is deducted from the total comprehensive energy consumption by closed furnace gas and recovered waste heat. The part exported outside the calcium carbide boundary is calculated according to the energy exported to the outside. If the coke (coal) powder transferred can replace the supply index, it is calculated according to the energy exported to the outside. The calorific value is calculated according to the measured low calorific value. The total comprehensive energy consumption calculation formula for calcium carbide products is: Total comprehensive energy consumption of calcium carbide products (public standard coal) (1 ) Electricity consumption of calcium carbide (kWh) × H: + (2) Carbon raw materials for producing calcium carbide (equivalent to C84%) (public hall) × H, + (3) Fuel for burning lime (kg) × H, + (4) Fuel for drying coke (kg) × H: + (5) Energy-consuming working fluid (equivalent to kg of standard coal) + (6) Auxiliary system energy consumption (equivalent to kg of standard coal) + (7) Auxiliary system energy consumption (equivalent to kg of standard coal) - (8) External output energy (equivalent to kg of standard coal). [Note] H is the equivalent calorific value conversion coefficient:
2.· Comprehensive energy consumption per unit product of calcium carbide·
Comprehensive energy consumption per unit product of calcium carbide refers to the comprehensive energy consumed in the production of two tons of standard calcium carbide (gasification 300/kg). The unit is expressed in public hall standard coal/ton of calcium carbide, and the qualified production scene is used for conversion when converting standard calcium carbide. Calculate public hall standard coal/ton of calcium carbide. The formula is as follows
Comprehensive energy consumption per unit product of calcium carbide (kg standard coal/ton of calcium carbide) Total comprehensive energy consumption (kg standard coal)
Qualified product discounted calcium carbide plate (ton)
3. The comparable comprehensive energy consumption of calcium carbide products is not specified for the time being. 3. Calculation basis and basis, Anshu auxiliary device 3,. .! Having complete and reliable measuring instruments (equipment) and insisting on the first process after entering the Guangguang and entering the boundary area, carefully testing the measuring plate, and at the same time, conducting component analysis or calorific value determination according to regulations is the basis for calculating the comprehensive energy consumption. To this end, enterprises should gradually improve and enrich the necessary measuring and analytical instruments, and do a good job of maintenance and management to ensure accuracy and reliability. The analysis and measurement methods shall be implemented in accordance with relevant standards: improve the original records and calculate according to unified prescribed methods to ensure that the data is reasonable and accurate.
Standard investment network basso.com various standard industry materials free downloadcm Various types of standard industry data are free to download, including cooling water, oxygen, nitrogen, compressed air, etc., and their calorific value is calculated according to the specified equivalent calorific value. (6) Energy consumed by auxiliary production systems
Includes the energy consumed by all processes in the calcium carbide production process from the entry of lime into the factory to the storage of calcium carbide finished products within the calcium carbide production boundary (such as power electricity, lighting electricity, water, nitrogen, compressed air, etc.), but please note that those calculated in the previous item should not be recalculated.
(7) Energy consumed by ancillary production systems · Includes the energy consumed by the maintenance section, laboratory, control room, warehouse and office within the calcium carbide boundary (such as power electricity, lighting electricity, water, nitrogen, compressed air, etc.): (8) Energy exported to the outside is deducted from the total comprehensive energy consumption, and the part exported outside the calcium carbide boundary is calculated according to the energy exported to the outside. If the coke (coal) powder transferred can replace the supply index, it is calculated according to the energy exported to the outside, and the calorific value is calculated according to the measured low calorific value. The formula for calculating the total comprehensive energy consumption of calcium carbide products is as follows: Total comprehensive energy consumption of calcium carbide products (standard coal) (1) Electricity consumption of calcium carbide (kWh) × H: + (2) Carbon raw materials for producing calcium carbide (equivalent to C84%) (standard coal) × H, + (3) Fuel for burning lime (kg) × H, + (4) Fuel for drying coke (kg) × H: + (5) Energy-consuming working fluid (equivalent to kg standard coal) + (6) Energy consumption of auxiliary system (equivalent to kg standard coal) + (7) Energy consumption of auxiliary system (equivalent to kg standard coal) - (8) Energy output (equivalent to kg standard coal). [Note] H is the equivalent calorific value conversion coefficient:
2.· Comprehensive energy consumption per unit product of calcium carbide·
Comprehensive energy consumption per unit product of calcium carbide refers to the comprehensive energy consumed in producing two tons of standard calcium carbide (gasification 300/kg). The unit is expressed in standard coal/ton of calcium carbide, and the qualified production is used for conversion to standard calcium carbide. The calculation formula is as follows
Comprehensive energy consumption per unit product of calcium carbide (kg standard coal/ton of calcium carbide) Total comprehensive energy consumption (kg standard coal)
Qualified product discounted calcium carbide plate (ton)
3. The comparable comprehensive energy consumption of calcium carbide products is not regulated for the time being. 3. Calculation basis and basis, Anshu auxiliary device 3,. .! Having complete and reliable measuring instruments (equipment) and insisting on the first process after entering the Guangguang and entering the boundary area, carefully testing the measuring plate, and at the same time, conducting component analysis or calorific value determination according to regulations is the basis for calculating the comprehensive energy consumption. To this end, enterprises should gradually improve and enrich the necessary measuring and analytical instruments, and do a good job of maintenance and management to ensure accuracy and reliability. The analysis and measurement methods shall be implemented in accordance with relevant standards: improve the original records and calculate according to unified prescribed methods to ensure that the data is reasonable and accurate.
Standard investment network basso.com various standard industry materials free downloadcm Various types of standard industry data are free to download, including cooling water, oxygen, nitrogen, compressed air, etc., and their calorific value is calculated according to the specified equivalent calorific value. (6) Energy consumed by auxiliary production systems
Includes the energy consumed by all processes in the calcium carbide production process from the entry of lime into the factory to the storage of calcium carbide finished products within the calcium carbide production boundary (such as power electricity, lighting electricity, water, nitrogen, compressed air, etc.), but please note that those calculated in the previous item should not be recalculated.
(7) Energy consumed by ancillary production systems · Includes the energy consumed by the maintenance section, laboratory, control room, warehouse and office within the calcium carbide boundary (such as power electricity, lighting electricity, water, nitrogen, compressed air, etc.): (8) Energy exported to the outside is deducted from the total comprehensive energy consumption, and the part exported outside the calcium carbide boundary is calculated according to the energy exported to the outside. If the coke (coal) powder transferred can replace the supply index, it is calculated according to the energy exported to the outside, and the calorific value is calculated according to the measured low calorific value. The formula for calculating the total comprehensive energy consumption of calcium carbide products is as follows: Total comprehensive energy consumption of calcium carbide products (standard coal) (1) Electricity consumption of calcium carbide (kWh) × H: + (2) Carbon raw materials for producing calcium carbide (equivalent to C84%) (standard coal) × H, + (3) Fuel for burning lime (kg) × H, + (4) Fuel for drying coke (kg) × H: + (5) Energy-consuming working fluid (equivalent to kg standard coal) + (6) Energy consumption of auxiliary system (equivalent to kg standard coal) + (7) Energy consumption of auxiliary system (equivalent to kg standard coal) - (8) Energy output (equivalent to kg standard coal). [Note] H is the equivalent calorific value conversion factor:
2.· Comprehensive energy consumption per unit product of calcium carbide·
Comprehensive energy consumption per unit product of calcium carbide refers to the comprehensive energy consumed in producing two tons of standard calcium carbide (gasification 300/kg). The unit is expressed in standard coal/ton of calcium carbide, and the qualified production is used for conversion to standard calcium carbide. The calculation formula is as follows
Comprehensive energy consumption per unit product of calcium carbide (kg standard coal/ton of calcium carbide) Total comprehensive energy consumption (kg standard coal)
Qualified product discounted calcium carbide plate (ton)
3. The comparable comprehensive energy consumption of calcium carbide products is not regulated for the time being. 3. Calculation basis and basis, Anshu auxiliary device 3,. .! Having complete and reliable measuring instruments (equipment) and insisting on the first process after entering the Guangguang and entering the boundary area, carefully testing the measuring plate, and at the same time, conducting component analysis or calorific value determination according to regulations is the basis for calculating the comprehensive energy consumption. To this end, enterprises should gradually improve and enrich the necessary measuring and analytical instruments, and do a good job of maintenance and management to ensure accuracy and reliability. The analysis and measurement methods shall be implemented in accordance with relevant standards: improve the original records and calculate according to unified prescribed methods to ensure that the data is reasonable and accurate.
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