JB/T 50152-1999 Energy consumption classification of open-hearth furnace for steelmaking
Some standard content:
Mechanical Industry Standard of the People's Republic of China
JB/T50152-1999
Energy Consumption Classification of Steelmaking Open Hearth Furnace
(Internal Use)
Published on December 30, 1999
National Machinery Industry Standard
Implementation on June 1, 2000
.IB/T 501S2-1999
This standard is a revision of 2BJ0102-S7≤Energy Consumption Classification of Steelmaking Open Hearth Furnace. During the revision, the original standard was revised and the main technical content was changed.
.This standard replaces ZBJ01002-87 from the date of implementation. This standard was proposed by the Mechanical Science Research Institute. The drafting units of this standard are: Shenkudanping Machinery Factory, the First Heavy Machinery Factory, the Second Model Machinery Factory, and Luoyang Keshan Machinery Factory. Energy Conservation Center of the Ministry of Machinery Industry.
The drafters of this standard are: Mi Xuedi, Gao Renguo, Hui Leguo, Liu Yaxi, Wang Songsi. This standard was issued for the first time in 1987.
Standard of the Machinery Industry of the People's Republic of China
Energy Consumption Classification of Steelmaking Open-Heat Furnaces
(Internal Use)
This standard specifies the energy consumption level of coal-fired and hot-gas open-hearth furnaces in steelmaking machinery industrial enterprises. 2 Energy Consumption Classification
JB5U152-19
Energy Consumption Classification of Comparable Units The energy consumption of comparable units can be divided into first class, second class, third class and fourth class. The comparable units that cannot meet the "first class" index belong to the same capacity classification. The pure coal-fired furnace must be listed in the table, and the hot-gas-fired furnace must be listed in the table! ! Nau oil
>19- 21.5
>230-225
>210-235
>220-245
: The middle production is fast and the public is recommended to save or improve the group after the expansion. Table 2 Burning cooked gas flat
Second place school
Open furnace comparable unit energy consumption calculation
>1$50~1700
>225 -255
235-265
#245-275
1709~1950
> 245-26C
> 215-276
265-280
>19sfi.21k:
The total consumption of end materials in the system, after deducting the increased cost of smelting molten steel, furnace wire treatment molten steel, mold quality protection and freezing steel, etc., is the estimated output of qualified molten steel (hereinafter referred to as molten steel), calculated as:
in: b
AAER-sEGu-SbZGm
alisZG
Statistically comparable unit energy support: ket or Nmt: fuel thermal coefficient.
Approved by the State Machinery Industry Bureau on December 30, 1999, and implemented on June 1, 2000
JB/150152—1999
Total fuel in the statistical period, ke or Nm; The total fuel of alloy steel molten steel is 20kgt for hot coal furnace and 2Nm for hot gas open furnace: Total output of technical open furnace water transfer during the statistical period:; When molten steel is treated outside the furnace, the fuel is usually hot gas flat furnace 0CYmt:
Total water in the five-core furnace:; The total water in the boiler of the open furnace is 100kgt; The water injection unit of the open furnace smelting is acid-treated. Provisions: 3:s
Total output of basic open-hearth furnace molten steel during the statistical period, 3.1 Total consumption of materials in half a furnace during the statistical period, including smelting water, semi-finished molten steel, molten iron and heating, continuous furnace maintenance, hot repair, etc. Qualification:
3.1 Total output of basic open-hearth furnace during the statistical period, including carbon base steel, alloy molten steel, semi-finished molten steel, embedded molten steel, etc. The amount of qualified molten steel that appears in the furnace is called, which refers to the smelting raw material or fuel consumption included in the total consumption of open-hearth furnace.
3.4 The external package can be pointed out as air, vacuum injection, spraying and refining, etc.: 3.5 Thermal estimation coefficient
3.5.1 Coefficient of heat dissipation of raw materials
Taking the calorific value of heavy oil as the standard, the calorific value of fuel oil in a certain period of the statistical period is less than 4019K! 2! Fuel thermal coefficient: L
Fuel thermal constant coefficient:
Mlonu B,)
Statistics: The low calorific value of each fuel market during the statistical period, kkg: The consumption of each batch of fuel during the statistical period,:, in the estimation, the low calorific value of the clinker is greater than 193kk, according to the industry 193kk makeup value instead of the low generation value of the corresponding batch of natural gas! Calculation, take! 3.5.2 Coefficient of calorific value of hot coal gas
Take the low calorific value of hot refining gas 6! N as the basis. The low calorific value of the hot gas consumed in this period of the statistics is 6kJ: Nm, and the coefficient is calculated by formula (3):
Srw sy
Wu Zhong: a
Heat conversion coefficient of hot coal gas:
The low calorific value of the hot coal gas consumed in each period of the statistics period is kI: Nm: Sw
B, and the hot coal gas consumed in each period of the statistics period is Nm\: α, estimated-pipe, when the low calorific value of the hot coal gas in a certain period is greater than 6U71kJ!>m, receive 6071k/Nm. The lower calorific value of the consumption of each period of the calculation period is 1071:N. When the consumption is measured, the stock is estimated to be 1,1!
3.5.3 The calorific value of the clinker shall be based on the data of the insurance company. The calorific value coefficient of the clinker shall be calculated based on the basic calorific value specified in the test data. 1. Science and Technology
3.. Fuel Oil
JR/T50152-1999
The fuel oil shall be calculated by the oil flow meter or the oil filling method. The calculation includes the total fuel oil consumption during the statistical period, the fuel consumption standard plate and the boiler fuel consumption list, and a complete record shall be kept. The consumption of the micro-fuel tank is calculated by formula (4):
Where: ≥B-..~-fuel consumption type, ke:\—the change of each batch of fuel at the temperature of the fuel. k/: The fuel oil flow meter is used to calculate the overall fuel oil properties, fuel oil temperature, fuel oil quick use temperature, pipe change report or [formula (5i: 2wwW.bzxz.Net
P1+O 0025-5.002p-.N-70)
The density of fuel oil at room temperature, fuel oil use temperature, fuel oil preparation method at room temperature, based on chemical test data: if there is no chemical test data, the conventional density of the refinery shall prevail, fuel oil used shall be based on the actual measured temperature of the fuel oil in the pipeline close to the heavy punch position: 3.6.2 Hot gas
The heat preservation capacity of the gas by the air-heating meter of the hot gas shall be calculated based on the calorific value of the nitrogen semi-balanced gas. 5
3.: The book of water production of a certain open-hearth furnace is a collection of the chemical composition actually evaporated during the smelting process, and the technical specifications of the enterprise or the film manufacturer are selected to ensure that the total weight of the furnace driving water is in line with the standards or technical specifications of the enterprise and the film manufacturer: the "ingot water" type of qualified steel ingot weight and the annual product flash certificate, steel requirements, ten water injection, etc. (after each Shanghai injection, the "she water" part is also supplied with water for casting and sealing parts (more than the planned sales water is shown) and the water dosage of the cleaning work is continuously supplied, and the part of the car that cannot be burned is the total weight of the defective product: the amount of water used in the car.
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