Method for automatically controlling and rapidly, accurately and precisely locating fan-shaped distribution of bell-less blast furnace

A clockless, precise positioning technology, applied in blast furnaces, blast furnace details, furnaces, etc., can solve the problems of unfavorable blast furnace normal production, easy to set wrong values, non-execution of fan-shaped material distribution, etc., to shorten the waiting time for material distribution, accurate positioning, Effect of shortening idling time

Active Publication Date: 2015-07-15
XINXING DUCTILE IRON PIPES CO LTD
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Problems solved by technology

[0002] When the bellless blast furnace adopts fan-shaped material distribution, the control accuracy of the fan-shaped angle of the chute is poor, and the positioning of the fan-shaped angle is difficult. Therefore, it is found that the fan-shaped material distribution interval angle and the rotation time of the rotating motor are long, and the time for the blast furnace to wait for unloading is too long. The fan-shaped material β1 setting The angle must be greater than the set angle of β2. Because it is easy to set the wrong value when weighing and feeding, it will cause problems such as fan-shaped cloth not being implemented. The above defects are not conducive to the normal production of the blast furnace

Method used

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  • Method for automatically controlling and rapidly, accurately and precisely locating fan-shaped distribution of bell-less blast furnace

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Embodiment Construction

[0017] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0018] see figure 1 , a method for automatic control of fast and precise positioning of blast furnace fan-shaped cloth without material bell, the specific steps are as follows:

[0019] (1) Set the material distribution mode of the chute to allow fan-shaped material, set four material inclination angles, and set the first fan-shaped setting angle β1 and the second fan-shaped setting angle β2; the first fan-shaped setting angle β1 and the second fan-shaped setting angle As long as the fixed angle β2 is in the range of 0-360° during setting, its value can be set arbitrarily, so as to avoid the wrong value set at the weighing and feeding station, so that the fan-shaped fabric does not execute;

[0020] (2) Determine the size of the first sector setting angle β1 and the second sector setting angle β2, if the first sector setting angle β1 is greater th...

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Abstract

The invention discloses a method for automatically controlling and rapidly, accurately and precisely locating fan-shaped distribution of a bell-less blast furnace. The method comprises the following specific steps of setting allowance of fan-shaped distribution, and setting a first fan-shaped set angle beta1 and a second fan-shaped set angle beta2; judging a fan-shaped set angle; collecting position data of a rotary chute in real time, carrying out angle conversion to obtain a circumferential position angle of the current rotary chute, and comparing with the first fan-shaped set angle beta1 and the second fan-shaped set angle beta2; and allowing blanking when the rotary chute is in the target position of the fan-shaped distribution. According to the invention, the angle location of fan-shaped distribution of a blast furnace chute is more precise and rapid; the idle running time and the distribution waiting time of a rotary motor are shortened; two numerical values of the fan-shaped set angle can be arranged freely; the wrong arrangement phenomenon of the numerical values does not exist; by means of precise distribution angle, a reasonable surface shape and ore-to-coke ratio distribution are formed in a blast furnace; and beneficial conditions are created for stability operation of the blast furnace.

Description

technical field [0001] The invention relates to a blast furnace material distribution automatic control technology, in particular to a bellless blast furnace fan-shaped material distribution automatic control method for fast, precise and precise positioning. Background technique [0002] When the bellless blast furnace adopts fan-shaped material distribution, the control accuracy of the fan-shaped angle of the chute is poor, and the positioning of the fan-shaped angle is difficult. Therefore, it is found that the fan-shaped material distribution interval angle and the rotation time of the rotating motor are long, and the time for the blast furnace to wait for unloading is too long. The fan-shaped material β1 setting The angle must be greater than the set angle of β2. Because it is easy to set the wrong value when weighing and feeding, it will cause problems such as fan-shaped cloth not being implemented. The above defects are not conducive to the normal production of the blas...

Claims

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Application Information

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IPC IPC(8): C21B7/20
CPCC21B5/006C21B5/008C21B7/20
Inventor 侯军哲
Owner XINXING DUCTILE IRON PIPES CO LTD
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