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Engineering Construction Standard Full-text Information System
Town Construction Industry Standard of the People's Republic of China CJ/T118--2000
Municipal solid waste incinerator
Municipal solid waste incinerator Construction Standard
2000-12-13 Issued
2001-05-01 Implementation
Ministry of Construction of the People's Republic of China
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
CJ/T118—2000
This standard is formulated to implement the Environmental Protection Law of the People's Republic of China, the Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Wastes and the Regulations on Urban Appearance and Environmental Sanitation, adhere to the harmlessness, reduction and resource utilization of domestic waste incineration, control the secondary pollution caused by domestic waste incineration, and standardize the design, manufacture, installation, sales, operation and maintenance of domestic waste incinerator products that use domestic waste as the designated fuel. This standard was proposed by the Standard and Quota Research Institute of the Ministry of Construction. This standard is managed by the Shanghai Municipal Environmental Sanitation Administration, the technical management unit of the Ministry of Construction's urban environmental sanitation standards.
This standard is edited by Shenzhen Municipal Environmental Sanitation Comprehensive Treatment Plant, and co-edited by Shenzhen Hongfa Domestic Waste Treatment Engineering Technology Development Center, Hangzhou Boiler Factory, Changzhou Environmental Sanitation and Environmental Protection Equipment Factory, and Wuxi Boiler Factory.
The main drafters of this standard are Cui Xiangdong, Gong Baixun, Cao Xueyi, Lu Juliu, Xue Yitai, Dai Yanan, and Yao Meichu.
This standard is entrusted to Shenzhen Municipal Environmental Sanitation Comprehensive Treatment Plant for interpretation. Engineering Construction Standard Full Text Information System
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Engineering Construction Standard Full Text Information System
Urban Construction Industry Standard of the People's Republic of China Municipal Solid Waste Incinerator
Municipal Solid Waste Incinerator1Scope
CJ/T118—2000
This standard specifies the classification, model, technical requirements, inspection and acceptance, identification, marking, painting, packaging and accompanying documents of municipal solid waste incinerators. This standard applies to the design, manufacture, installation, sales, operation, maintenance, etc. of municipal solid waste incinerators with a municipal solid waste incineration capacity greater than or equal to 100t/d (tons/day, 1d=24h, the same below) and less than 500t/d using municipal solid waste as the set fuel; municipal solid waste incinerators with a municipal solid waste incineration capacity less than 100t/d should not be lower than the requirements of this standard. The requirements of domestic waste incinerators that burn non-hazardous wastes and domestic waste incinerators that burn conventional fuels or use conventional fuels for combustion and supplementary combustion shall not be lower than those of this standard. The requirements of similar products or components introduced shall not be lower than those of this standard. Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GBI576—2001 Low-pressure boiler water quality
GB5085.3—1996 Hazardous waste identification standard Leaching toxicity identification GB/T9222—1988 Strength calculation of pressure components of water tube boilers GB/T10180—1988 Thermal test procedures for industrial boilers Approved by the Ministry of Construction of the People's Republic of China on December 13, 2000 Engineering Construction Standards Full-text Information System
2001-05-01 Implementation
Engineering Construction Standards Full-text Information System
GB/T10184—1988
Power station boiler performance test procedures||t t||GB/T12145—1999
Water vapor quality of thermal power generating units and steam power equipmentGB13271—1991Emission standard of air pollutants from boilersGB/T16508—1996Strength calculation of pressure components of shell boilersGB50273—1998Construction and acceptance code for industrial boiler installation projectsTJ36—1979
Sanitary standard for industrial enterprise design
CJ/T20—1999Pyrolysis of special equipment for urban environmental sanitation
JB/T1609—1993
JB/T1610—1993
JB/T1611—1993
JB/T1612—1994
JB/T1613—1993
JB/T1615—1991
JB/T1616—1993
JB/T1620—1993
JB/T3375—1991
JB/T5255—1991
DL/T5047—1995
3 Terms
Technical conditions for boiler shell manufacturing
Boiler header manufacturing Technical conditions
Technical conditions for boiler tube manufacturing
Technical conditions for boiler water pressure test
Waste incineration, gasification,
Technical conditions for welding of pressure-bearing components of boiler
Technical conditions for boiler painting and packagingbzxz.net
Technical conditions for tubular air preheater manufacturing
Technical conditions for boiler steel structure
Inspection of boiler raw materials entering the factory
Technical conditions for welding finned tubes (screens)
Technical specifications for construction and acceptance of electric power construction (boiler unit section)
3.1 Municipal solid waste (MSW) incinerator, a thermal equipment that treats domestic waste by incineration and effectively exchanges and utilizes the energy released during the incineration process. 3.2 MSW incineration capacity Under the premise of meeting the requirements of MSW incineration treatment, meeting the specified indicators of incineration residue and flue gas emissions, and meeting the design requirements of quality and energy transfer, exchange and utilization, 2
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The quality of MSW incineration treatment obtained by the incinerator per unit time. Expressed in d.
MSW incineration residue3.3
Solid residue generated during the incineration of MSW. MSW incinerator slag (bottom ash)3.4
Residue directly discharged from the furnace bed of MSW incinerator. MSW incinerator ash (fly ash)3.5
Residue carried by the flue gas at the outlet of the MSW incinerator. Auxiliary combustion auxiliary cambustion
Burning auxiliary fuel to ensure stable combustion of domestic waste and exhaustion of flue gas. 7 Supplemental combustion supplemental combustion 3.7
On the premise that domestic waste is completely stably burned and exhaustion of flue gas, auxiliary fuel is burned to improve the steam output rate and parameters of the incinerator.
3.8 Incineration short circuit short circuit in MSW incineration process The phenomenon that domestic waste entering the domestic waste incinerator is directly discharged or leaked without incineration treatment.
4 Classification
4.1 Domestic waste incinerators are divided into two categories according to the size of domestic waste incineration treatment. 4.1.1 Domestic waste incinerators with a domestic waste incineration treatment capacity greater than 100t/d are large domestic waste incinerators.
4.1.2 Domestic waste incinerators with a domestic waste incineration treatment capacity not greater than 100t/d are small domestic waste incinerators.
4.1.3 The domestic waste incinerator can generally adopt the series shown in Table 1.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Table 1 Domestic waste incinerator domestic waste incineration capacity series 50, 100, 150, 200 250, 300, 350, 400, 450, 500 Note: The series with a domestic waste incineration capacity greater than 500t/d shall be selected separately 4.1.4 Large domestic waste incinerators must have a waste heat boiler part. t/d
4.2 Domestic waste incinerators are divided into four categories according to the different domestic waste combustion methods, see Table 2.
The domestic waste incinerator adopting the layered combustion method is the grate type domestic waste incinerator.
4.2.2 The domestic waste incinerator adopting the boiling combustion method is the fluidized bed type domestic waste incinerator.
4.2.3 The domestic waste incinerator adopting the horizontal rotary combustion method is a rotary kiln domestic waste incinerator.
4.2.4 Incinerators that adopt other methods of burning domestic waste are other forms of domestic waste incinerators.
Table 2 Code of burning method
Combustion method
Layered combustion
Boiling combustion
Rotary combustion
Other combustion
Model number
Corresponding domestic waste incinerator
Grate-type domestic waste incinerator
Fluidized bed-type domestic waste incinerator
Rotary kiln-type domestic waste incinerator
Other forms of domestic waste incinerators
Abbreviation of domestic waste incinerator
Grate incinerator
Fluidized bed incinerator
Rotary kiln incinerator
Other incinerators
The product model of domestic waste incinerator consists of three parts, and each part is connected by a short horizontal line, as shown in Figure 1.
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Engineering Construction Standard Full Text Information System
Design No.
】Part I
Rated hot gas or hot water temperature of waste heat boiler (Rated gas or hot water pressure of waste heat boiler aPa) Rated incineration capacity of domestic waste (t/d) Domestic waste combustion method code
Domestic waste grade (Chinese Pinyin abbreviation)
Figure 1 Composition of domestic waste incinerator product model Part II
Part I
5.2 The combustion method code in the domestic waste incinerator product model is shown in Table 2. The values in the product model are expressed in Arabic numerals, and only numbers are written in the model without units of measurement.
5.3 For incinerator products without waste heat boilers, the second part of the model is omitted. For incinerator products that produce saturated steam, the second paragraph of the second part of the model and the preceding slash do not appear. 5.4 The design number is indicated by Arabic numerals. There is no design number in the model of the prototype design product.
5.5 Example: A prototype design product with a grate-type domestic waste incinerator with a domestic waste incineration capacity of 150t/d, a waste heat boiler with a rated steam pressure of 3.9MPa and a rated steam temperature of 400℃, is model SLC150-3.9/400. 6 Requirements
6.1 Domestic waste entering the furnace
6.1.1 The annual average moisture content should not be greater than 50%, the annual average ash content should not be greater than 30%, and the annual average low calorific value should not be less than 4.18M/kg. 6.1.2 When the low calorific value is not greater than 4.18M/kg, other fuels are allowed to be used for combustion, but the combustion heat is limited to the domestic waste incineration process meeting the requirements of 6.2.5. 5
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Engineering Construction Standard Full Text Information System
6.1.3 When the upper limit of low calorific value should not be less than 6.38M/kg, there should be a cooling device for the domestic waste hopper.
6.1.4 When the moisture content should not be less than 40%, the hopper and feeding device should be equipped with a domestic waste leachate collection and external introduction device, which should be conducive to the subsequent treatment of the domestic waste leachate.
6.2 Incineration device and smoke, wind
6.2.1 It is necessary to ensure the normal progress of the incineration stages of the domestic waste entering the furnace, such as preheating, drying, heating, precipitation and softening of volatiles, combustion and burnout of gas and solid phases. 6.2.2 It is necessary to ensure the reliability and stability of the feeding, distribution, mixing, movement, air distribution, slag discharge and other processes in the incineration treatment of domestic waste entering the furnace. 6.2.3 The combustion air shall be extracted from the top of the domestic waste storage pit (tank), and the determination of the preheated air temperature shall meet the requirements of stable incineration of domestic waste. 6.2.4 The configuration and adjustment of the primary air shall meet the needs of domestic waste incineration. Secondary air should be set up.
6.2.5 When the incineration device is operating normally, there must be a gas phase space high temperature combustion area inside it that meets the following conditions at the same time:
a) The flue gas temperature shall not be lower than 850℃;
b) The flue gas oxygen content shall not be lower than 6%;
c) There is sufficient flow intensity to ensure uniform mixing. The residence time of the flue gas generated by the incineration of domestic waste in this area shall not be less than 2s.
6.2.5 The gas phase high temperature combustion area required by
6.2.6
can be constructed by high temperature combustion furnace, secondary high temperature combustion chamber or other methods. 6.2.7 The high-temperature combustion furnace and the secondary high-temperature combustion chamber are calculated along the flue gas flow, starting and ending with the front and rear flow sections that meet the three requirements of 6.2.5 at the same time. 6.2.8 The flue layout should be conducive to the gravity separation of fly ash. 6.2.9 It should have reliable sealing and thermal insulation performance. From the entrance of the domestic garbage hopper to the exhaust outlet, it should be in a negative pressure closed state during operation, and there should be no gas and dust leakage; it should be in a normal pressure closed state when the furnace is stopped, and the ambient air around the incinerator must meet the requirements of 6
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Requirements of TJ36.
Cold test and delivery of the incineration device with moving parts. 6.2.10.1 The incineration device shipped completely assembled should be cold tested after assembly in the production unit.
For the incineration device shipped in bulk, at least one unit of the first design product should be assembled in the factory and cold tested; for products with the same drawings and process components, one unit should be assembled in the factory every year and cold tested. 6.2.10.3 The incineration device must be cold tested after installation. 6.2.10.4 The continuous operation time of the cold test in the production unit or on the user's site must be greater than 8 hours, during which the operation must be smooth and smooth, the rotation must be flexible, and there must be no noise. There must be no deviation, bulge, jamming, fragmentation, eccentricity, etching, local friction overheating, plane tilt and other defects. The noise at any place 1m away from any action zero or component should not exceed 80dB(A), and the lubricating oil temperature and hydraulic oil temperature must not exceed the specified temperature. 6.2.11 When the ambient temperature is 25℃, the outer wall temperature of the furnace body arranged indoors should not exceed 50℃, and the outer wall temperature of the furnace body arranged outdoors should not exceed 45℃. 6.2.12
The incineration capacity of domestic waste is allowed to fluctuate within the range of 70% to 110% of the rated incineration capacity of domestic waste.
6.2.13 The thermal loss on ignition of slag from a domestic waste incinerator shall not be greater than 5%; the thermal loss on ignition of slag from a domestic waste incinerator with a rated incineration capacity of not less than 200t/d shall not be greater than 3%. The test and calculation of thermal loss on ignition shall be carried out in accordance with the requirements of C/T20.
1 The incineration slag and ash shall be sampled regularly and their toxicity shall be identified in accordance with the requirements of GB5085.36.2.14
.
6.2.15 Incineration short circuits are strictly prohibited in the incineration device. 6.3 Furnace wall and furnace arch
6.3.1 The refractory and thermal insulation materials selected for the furnace wall and furnace arch must comply with the relevant current national and industry standards.
6.3.2 The furnace wall near the bed layer of the domestic waste incineration treatment must have good heat resistance, wear resistance and corrosion resistance.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
6.3.3 If the low calorific value of the domestic waste design application base is not less than 6.38M/kg, furnace wall cooling should be provided.
6.3.4 A fire-protection belt should be provided to ensure stable ignition of domestic waste and meet the requirements of 6.2.5.
6.3.5 A light-structure furnace wall should be selected on the premise of meeting the requirements. 6.3.6 Furnace wall refractory and thermal insulation materials of different properties should be selected according to the requirements of different parts of the furnace wall.
6.3.7 The dynamic seal between the furnace wall and the moving parts, components and assemblies of the incineration device should be reliable, simple, easy to maintain and adjust.
6.3.8 It is strictly forbidden to damage the furnace wall due to the uneven thermal expansion of the furnace wall, the furnace wall and the cooling air duct, the secondary air duct, the incineration device, the heating surface and the steel frame. 6.3.9 Necessary furnace wall reinforcement components should be installed at the outlets of various meters, observation inspection holes, adjustment mechanisms, soot blowers, etc. on the furnace wall. Pressure relief or explosion-proof devices should be installed. 6.3.10 The setting of the furnace arch should meet the requirements of heat and smoke and air mixing for the ignition of the bed layer of domestic waste incineration treatment.
6.3.11 The furnace arch material should be easy to cast and repair, not easy to burn, and the furnace arch line should be easy to construct.
The ash hopper refractory structure should be resistant to steam-water quenching, and have a simple shape, easy to construct and maintain.
The outer surface of the furnace wall, furnace arch and ash hopper needs to have a reliable protective shell. 6.3.13
6.4 Waste Heat Boiler
6.4.1 The design, manufacture, installation, operation and inspection must comply with the "Safety Technical Supervision Regulations for Steam Boilers" (China Labor Publishing House, 1996.9., hereinafter referred to as "Steam Regulations") and "Safety Technical Supervision Regulations for Hot Water Boilers" (Labor Ministry Boiler Pressure Safety Magazine, 1991.5.20., hereinafter referred to as "Water Regulations"). 6.4.2 Steam Parameters
6.4.2.1 Design steam parameters may be agreed upon by the design, manufacturing unit and user. 6.4.2.2 During operation, the actual evaporation capacity is allowed to fluctuate within the range of 85% to 115% of the rated evaporation capacity.
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6.4.2.3 During operation, the allowable deviation of superheated steam temperature is shown in Table 3. Table 3 Permissible deviation of superheated steam temperature
Rated superheated steam temperature, ℃
≤300
≤350
≤400
Permissible deviation
+30, 20
+20, -20
+10, -20
+10, —15
6.4.2.4 During operation, the fluctuation of steam pressure shall be specified by the design drawings and technical documents without violating the "steam regulations" and "water regulations". 6.4.2.5 The permissible deviation of saturated steam temperature shall not be greater than 3% for water-tube waste heat boilers and 4% for shell waste heat boilers. 6.4.3 Feed water quality of waste heat boilers
6.4.3.1 When the rated steam pressure is greater than 2.45MPa, it must comply with the provisions of GB/T12145.
Regulations.
When the rated steam pressure is not more than 2.45MPa, the waste heat boiler design and manufacturing must comply with GB1576
6.4.4.1 The design calculation and major design change calculation of pressure components must comply with the provisions of GB/T9222 and GB/T16508.
6.4.4.2 The materials of pressure components shall comply with the provisions of design drawings and technical documents, and material substitution must be approved according to the prescribed procedures.
6.4.4.3 The quality of steel and welding materials used in pressure components must comply with the current national standards or industry standards, and there should be a material quality certificate, and the on-site inspection shall be carried out according to JB/T3375. They can only be used after passing the inspection.
6.4.4.4 The manufacturing of main parts shall comply with the provisions of JB/T1609, JB/T1610, JB/T1611, JB/T1613, JB/T1616, JB/T1620 and JB/T5255. 5 Welding welds shall be inspected in accordance with the requirements of JB/T1613. 6.4.4.5
6.4.4.6 The water pressure test shall be carried out and accepted in accordance with the requirements of JB/T1612. 9
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6.4.5 Others
6.4.5.1 During operation, all parts of the waste heat boiler shall be able to expand and compensate freely in the direction predetermined by the design. There shall be no stress concentration that hinders the expansion, and damage caused by stress concentration is not allowed.
6.4.5.2 During operation, the working fluid in each heating surface should circulate and flow normally, the resistance and pressure drop should be normal, and each heating surface should be reliably cooled (the tube wall temperature is normal). 6.4.5.3 The setting and selection of safety devices and various meters must comply with the requirements of the "Steam Regulations" and "Water Regulations".
6.4.5.4 The layout of the heating surface should avoid high-temperature corrosion and low-temperature corrosion, and prevent the loosening, adhesion, erosion and wear of ash particles.
6.4.5.5 A dust cleaning device should be configured.
6.5 Other general requirements
6.5.1 The structure and thermal design should be compact and reasonable, and can adapt to the changes in the composition and calorific value of domestic waste in a large range.
6.5.2 Domestic products and components should be used as much as possible, and they should comply with their respective product standards and regulations. If there are other requirements in the order, they can be implemented according to the contract. 6.5.3 The flue gas emitted by the domestic waste incinerator shall meet the requirements of GB13271 and be able to match the requirements of the subsequent flue gas purification system. 6.5.4 All necessary monitoring meters, regulating mechanisms, test devices, observation inspection holes and valves must be installed.
6.5.5 The corrosion resistance requirements of all components, parts and parts that come into contact with domestic waste, domestic waste leachate, flue gas and combustion air must be considered when selecting materials. 6.5.6 The thermal efficiency of the domestic waste incinerator shall not be less than 65%. 6.5.7 The service life of a large domestic waste incinerator shall not be less than 1.2×10°h. 6.5.8 The domestic waste incinerator should be easy to install on site, convenient to operate and inspect, with a small workload for maintenance and overhaul, and simple to clean the ash slag on the outside of the heating surface and the dirt inside. 6.5.9 The installation project shall be carried out in accordance with the requirements of the installation drawings and relevant technical documents. When the rated steam pressure is not more than 2.45MPa, it shall comply with the provisions of GB50273; when the rated steam pressure is more than 2.45MPa, it shall comply with the provisions of DL/T5047.5 All components, parts and parts that come into contact with domestic waste, domestic waste leachate, flue gas and combustion air must take into account their corrosion resistance requirements when selecting materials. 6.5.6 The thermal efficiency of domestic waste incinerators should not be less than 65%. 6.5.7 The service life of large domestic waste incinerators should not be less than 1.2×10°h. 6.5.8 Domestic waste incinerators should be easy to install on site, convenient to operate and inspect, with a small workload for maintenance and overhaul, and simple to clean the ash and dirt on the outside of the heating surface and the inside. 6.5.9 The installation project should be carried out in accordance with the requirements of the installation drawings and relevant technical documents. When the rated steam pressure is not more than 2.45MPa, it shall comply with the provisions of GB50273; when the rated steam pressure is greater than 2.45MPa, it shall comply with the provisions of DL/T5047. 10
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KAONTKAca-5 All components, parts and parts that come into contact with domestic waste, domestic waste leachate, flue gas and combustion air must take into account their corrosion resistance requirements when selecting materials. 6.5.6 The thermal efficiency of domestic waste incinerators should not be less than 65%. 6.5.7 The service life of large domestic waste incinerators should not be less than 1.2×10°h. 6.5.8 Domestic waste incinerators should be easy to install on site, convenient to operate and inspect, with a small workload for maintenance and overhaul, and simple to clean the ash and dirt on the outside of the heating surface and the inside. 6.5.9 The installation project should be carried out in accordance with the requirements of the installation drawings and relevant technical documents. When the rated steam pressure is not more than 2.45MPa, it shall comply with the provisions of GB50273; when the rated steam pressure is greater than 2.45MPa, it shall comply with the provisions of DL/T5047. 10
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