Method for measuring steel ball grinding material level

A technology for measuring steel balls and steel ball milling, used in measuring devices, measuring heat, measuring liquid/fluid solids, etc.

Active Publication Date: 2010-07-21
ZHUHAI HUAYUAN AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of the present invention is to provide a method for measuring the steel ball grinding material level and temperature, and then solve the problem of automatic control of the steel ball grinding system

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] The technical scheme that the present invention adopts is described in detail below in conjunction with specific embodiment:

[0023] Install audio sensors (such as microphones, electric ears, etc.) or vibration sensors directly on the rotating cylinder. The receiving direction of the audio sensor is close to the shell of the mill, fixed with bolts and special gaskets, and the outer wall of the audio sensor is a sound-proof shielding layer. Since the audio sensor is closely attached to the surface of the cylinder without gaps, and the sound insulation cover of the sensor is sound-proof, all the signals received by the audio sensor come from the audio vibration signal inside the mill, and external interference cannot be transmitted. The audio signal obtained by such measurement is direct, reliable and accurate.

[0024] In addition, the vibration sensor can be directly fixed on the shell cylinder, therefore, all the signals obtained by the sensor are vibration signals o...

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PUM

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Abstract

The invention provides a method used for measuring the grinding material level and temperature of steel balls, consisting of the steps as follows: the receiving surface of a grinding sound receiving sensor is closely attached to the external wall of a cylinder body of a steel ball mill so as to be arranged without a gap; a sound insulating shell is matched and arranged outside the sensor, thus leading the environmental disturbance to be all insulated out of the sound insulating shell; all signals obtained by the sensor come from the interior of the cylinder body of a grinding mill; the signals obtained by the sensor are emitted to a signal receiving unit by a signal emitting unit; after the signals are received by the signal receiving unit, the signals are processed by a signal processingunit and the result after processing is provided to an output unit. The method of the invention radically avoids the effects of environmental noise signals and vibration signals on the measurement precision, leads the signals obtained by the sensor to directly come from the interior of the mill, and ensures the directness, exactness, reliability and synchronization of the measurement on method and principle.

Description

technical field [0001] The invention relates to a method for measuring the material level and temperature in a mill, in particular to a method for measuring the material level and temperature of a steel ball mill. Background technique [0002] Most of the pulverizing systems of pulverized coal furnace power plants are medium-storage steel ball mill pulverizing systems or double-inlet and double-outlet steel ball mill pulverizing systems, and the proportion of the above-mentioned pulverizing systems in all pulverizing systems is increasing year by year. Since the 1960s, the automatic control of the central storage steel ball mill pulverizing system has always been a "persistent" problem that cannot be solved well. It is an urgent need for these power generation companies to realize good and stable automatic control of the pulverizing system and effectively improve the grinding quality. There are many reasons that affect the automatic control of the pulverizing system. In add...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/296G01K7/00
Inventor 原传海李开升
Owner ZHUHAI HUAYUAN AUTOMATION TECH
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