Detection method for blast furnace top material level

A detection method, blast furnace technology

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

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Problems solved by technology

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

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  • Detection method for blast furnace top material level
  • Detection method for blast furnace top material level
  • Detection method for blast furnace top material level

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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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Abstract

The invention discloses a detection method for a blast furnace top material level. After a stock rod design range stockline level and a 0m stockline level of a master controller are determined, the current indication of an absolute coder and the whole rotating circle number of a chain wheel in a heavy punch lowering process are respectively recorded, a proportionality factor is calculated according to a formula, and then the practical value of the stock rod height is calculated in real time within each period. According to the detection method for the blast furnace top material level, which is disclosed by the invention, the problem that production is affected due to complex and time-wasting zero calibration process of the traditional blast furnace stock rod system is solved.

Description

technical field [0001] The invention relates to a blast furnace top system, in particular to a blast furnace top material level detection method. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/24
Inventor 宋嵩陈红明
Owner WISDRI ENG & RES INC LTD
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