Furnace top stock-level detection system for blast furnace

A detection system, blast furnace technology, applied in blast furnaces, blast furnace details, furnaces, etc., can solve the problems of time-consuming, complicated zero point calibration process, etc., and achieve the effect of simplifying debugging steps and saving manpower and material costs

Inactive Publication Date: 2012-10-03
WISDRI ENG & RES INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a blast furnace top material level detection system, which can easily measure the blast furnace top material level, and solve the complicated and time-consuming zero point calibration process in the current blast furnace probe debugging process

Method used

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  • Furnace top stock-level detection system for blast furnace
  • Furnace top stock-level detection system for blast furnace
  • Furnace top stock-level detection system for blast furnace

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] figure 1 It is a structural diagram of the hardware system of an embodiment of the present invention. The system is composed of a PLC controller, a master controller, a frequency converter, a motor, a sprocket, a weight, an incremental encoder and an absolute value encoder. The PLC controller receives The signal of the master controller and the absolute value encoder; the frequency converter is connected with the PLC controller and the motor, the incremental encoder is connected with the frequency converter and the motor; the motor is connected with the sprocket to drive the forward and reverse rotation of the sprocket, and the absolute value The encoder is connected to the sprocket.

[0019] In this embodiment, the probe is selected as a probe with a maximum measuring range of 6 m, and the absolute value encoder is a 16-bit single-turn encoder.

[0020] The PLC co...

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PUM

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Abstract

The invention discloses a furnace top stock-level detection system for a blast furnace, which includes an absolute value coder data acquisition module, a chain wheel complete rotation round record module, a scale factor K computation module, a stock rod height calculation module and a stock height output module. When a stock rod designed range stockline and a 0 meter stockline of the master controller are determined, the absolute value coder data acquisition module respectively records readings on absolute value coders at that time, and the chain wheel complete rotation round record module records the complete rotation round number of a chain wheel during the descending process of a counter weight; then the scale factor is calculated; and finally, the actual height values of the stock rod can be calculated and output in real time in every period. The system disclosed by the invention solves the problems that the present blast furnace stock rod system is complicated and time-consuming in the zero calibration process and further affects the production.

Description

technical field [0001] The invention relates to a blast furnace top system, in particular to a blast furnace top material level detection system. Background technique [0002] The probe is an important facility of the blast furnace roof and charging system. It is responsible for detecting the height and distribution of the material level in the blast furnace during production. It is the basis for judging the combustion progress of the raw materials inside the blast furnace, and provides a basis for automatic charging control. Therefore, it plays an important role in the efficient and safe operation of the entire blast furnace system. But the current blast furnace probe system has the following problems. (1) Since the reading of the probe absolute value encoder is completely proportional to the actual height, it is difficult to calibrate the zero point during debugging, and the calibration process is cumbersome. (2) The detection value of the probe will often appear after a ...

Claims

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Application Information

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IPC IPC(8): C21B7/24C21B5/00
Inventor 宋嵩陈红明
Owner WISDRI ENG & RES INC LTD
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