A method to determine the compensation angle of different feed lines in blast furnace distribution process

A technology for compensating angles and material lines, applied in blast furnaces, blast furnace details, furnaces, etc., can solve the problems of lack of accuracy, lack of experimental and theoretical basis, and large randomness.

Active Publication Date: 2021-09-10
武汉钢铁有限公司
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Problems solved by technology

The compensation angle in " is also an estimation, the accuracy lacks experimental and theoretical basis, and the randomness is too large

Method used

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  • A method to determine the compensation angle of different feed lines in blast furnace distribution process
  • A method to determine the compensation angle of different feed lines in blast furnace distribution process
  • A method to determine the compensation angle of different feed lines in blast furnace distribution process

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Embodiment Construction

[0049] Embodiments of the present invention are described in detail with reference to the accompanying drawings.

[0050] Take a 3400m 3 Take the blast furnace as an example. The blast furnace is equipped with a bellless distribution device. The length of the chute is 3.8 meters and the diameter of the chute is 750mm. Taking the distribution of coke as an example, there are 11 distribution corners in total. When the chute is placed at 11 corners, the material flow trajectory is as follows: figure 1 shown.

[0051] Step 1) Steps for solving the coordinates of the intersection point of the falling trajectory of the charge at the corner of each chute and the reference material line:

[0052] As shown in Table 1, the trajectory drop points of the actual measured material distribution trajectory on the material line of 0, 1, 2, and 3 meters are shown in Table 2 when the furnace is turned on.

[0053] Table 1 11 fabric corner positions

[0054] 1 2 3 4 5 6 7 8 ...

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Abstract

The invention provides a method for determining the compensation angle of different material lines in the blast furnace material distributing process, which belongs to the technical field of blast furnace smelting. The method is based on the angular position material flow trajectory data measured when the furnace is opened, and the abscissa corresponding to the unit drop point The rate of change of the inclination angle of the fabric, when calculating the change of the discharge line, is the specific chute inclination angle that maintains the same abscissa of the drop point. The determination of the compensation angle of the present invention is based on experimental data, which reduces human errors, and the reduction of errors provides a basis for accurate material distribution, improves the accuracy of adjustments in the case of huge fluctuations in furnace conditions, and provides a basis for timely recovery of furnace conditions. Material distribution guarantee; through theoretical calculations, the accuracy of the landing point can be greatly improved. This patent provides different compensation angles for material lines at intervals of 0.5 meters, refines the compensation interval, reduces the deviation of the furnace material landing point, and can control the error of the landing point radius Below 3%.

Description

technical field [0001] The invention belongs to the technical field of blast furnace material distribution, and specifically provides a method for determining compensation angles of different material lines during the blast furnace material distribution process. Background technique [0002] The operation of the blast furnace is achieved through the matching of the upper and lower parts of the operation to achieve the smooth progress of the blast furnace smelting process. The blast operation is mainly completed in the lower part of the blast furnace, and the charging of the charge is completed in the upper part of the blast furnace. For nearly half a century, the blast furnace has mainly relied on two devices to realize the charge One is a bell-type distributor, and the other is a material-free bell distributor, as shown in the document "Edited by Zhou Chuandian, Technical Handbook of Blast Furnace Ironmaking Production, Metallurgical Industry Press, 2002, P217-231." Bell cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/16C21B5/00
CPCC21B5/00G06F17/16
Inventor 陈令坤邹祖桥尹腾
Owner 武汉钢铁有限公司
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