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Foal feeding amount control system for coke oven coal feeding cart

A control system and coal truck technology, which are applied in coke ovens, petroleum industry, charging devices, etc., can solve the problems of affecting the production rhythm of coke ovens, long screw feeding time, and less coal addition, etc., and improve labor productivity. , The effect of reducing the number of coke out and accurate quantitative coal feeding

Active Publication Date: 2012-04-04
WUHU XINXING DUCTILE IRON PIPES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The spiral feeding speed is relatively slow, and it is ideal to control the coal feeding error by the spiral control method, but the coal is relatively soft in the carbonization chamber, the pile specific gravity is small, the amount of coal added on a dry basis by the screw feeding is small, and the coke output of a single furnace is small. Coke oven production capacity and efficiency are not high, which is not conducive to energy saving and consumption reduction
At the same time, the spiral blanking time is longer, which affects the rhythm of coke oven production and affects the productivity of coke

Method used

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  • Foal feeding amount control system for coke oven coal feeding cart
  • Foal feeding amount control system for coke oven coal feeding cart

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The coal charging hopper 1 described in the present invention is provided with 3 support points connected with the car body, and the 3 support points are evenly distributed on the outer periphery of the horizontal plane of the coal charging hopper 1, and each support point is installed One said load cell 2, load cell 3, and load cell 4.

[0026] The coal charging hopper 1 is a movable separate body relative to the car body. The coal charging hopper 1 is connected to the car body of the coal charging car through three load cells. The load cells output a standard signal of 4-20mA and send it to the weighing control. 6, setting the tonnage corresponding to the 4mA and 20mA standard signals on the weighing controller 6, and the standard signal is linearly proportional to the corresponding tonnage.

Embodiment 2

[0028] The coal addition control system described in the present invention is provided with a PLC13, and the PLC13 includes a power supply module, a CPU module, an analog input module and a switch output module. The PLC is a programmable controller, which is a new type of electrical control device. PLC has the following advantages: high reliability, strong anti-interference ability; simple system structure, convenient combination, strong versatility; simple programming, convenient use and maintenance; strong function, wide application range; small size, light weight, low power consumption. The invention utilizes the PLC to detect the electric current of the motor and controls the operation of the motor by comparing the magnitude of the load current. Among them, the power module provides the working energy of the PLC; the CPU module is the central processing unit, which is the core component of the PLC; the analog input module accepts the analog signal of the weight of coal, an...

Embodiment 3

[0030] Establish weighing controller 6 in the coal addition control system of the present invention, press figure 1 In the example, the load cells are respectively load cell 2, load cell 3 and load cell 4, each of the above load cells is connected to the weighing controller 6 through the sensor signal line 5, and the load cell The load cell 2, the load cell 3, and the load cell 4 convert the weight of the coal hopper 1 into a standard signal and send it to the weighing controller 6; the weighing controller 6 is connected to the PLC13 through the standard signal line 7. The quasi-signal line 7 is a standard signal line of 4 mA and 20 mA.

[0031] The load cell outputs the standard signal of 4-20mA, which is sent to the weighing controller 6, and the corresponding tonnage of the 4mA and 20mA standard signals is set on the weighing controller, and the standard signal is linearly proportional to the corresponding tonnage. The standard signal output by weighing controller 6 is sen...

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Abstract

The invention discloses a control system used for controlling the coal feeding quantity of a coke oven coaling vehicle; the coke oven coaling vehicle comprises a coal receiving hopper (1), and a vehicle body of the coaling vehicle; the coal receiving hopper (1) is provided with a coal hopper gate plate (12) which is used for arranging the coal; and the coal receiving hopper (1) is connected with the vehicle body by a plurality of weighing sensors (2, 3, 4). By adopting the technical proposal and applying the weighing sensors and the control of PLC, the coal can be added automatically, fast, precisely and quantitatively, the coal feeding quantity of the coking chamber, the pollution is reduced, the labor intensity of the worker is reduced, the flatting time is reduced, phenomena of corner loss of the coal and furnace hole blockage by the coal and coke discharging times not at regular points are obviously reduced, and the labor productivity is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of production equipment in the metallurgical industry, in particular, the invention relates to a coal loading control system for a coke oven coal loading vehicle. Background technique [0002] At present, in the production of the metallurgical industry, the coaling method of the coke oven coaling car generally adopts vertical spiral feeding. Spiral blanking is composed of variable speed motor, reducer, transmission mechanism and screw mechanism. The number of turns of the screw device is detected by a proximity switch, and the detected signal is sent to the PLC, which is counted by a counter in the program to control the output of the relay. The variable speed motor mostly uses a two-speed motor. The two-speed motor drives the reducer, the reducer drives the transmission mechanism, and the transmission mechanism drives the screw device in the coal hopper. The amount of coal added is controlled by the number...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B31/02
Inventor 王桂生连献功赵和平毛明恒李晓东王春海陈福海王永乐蓝海
Owner WUHU XINXING DUCTILE IRON PIPES
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