An intelligent speed regulation system and method for coal flow transportation in fully mechanized caving working face of coal mine

A fully-mechanized caving face and intelligent speed regulation technology, which is applied in underground transportation, transportation and packaging, mine roof supports, etc., can solve problems such as waste of power capacity, affecting the efficiency of underground coal flow transportation, and differences in worker experience, so as to ensure safety The effects of mining, increasing coal mine production efficiency, and reducing the number of workers

Active Publication Date: 2021-04-09
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex and changeable working conditions of the fully mechanized caving face in coal mines and the differences in worker experience, it is difficult to accurately adjust the frequency conversion of the transportation equipment
Therefore, no matter whether the transportation equipment of fully mechanized caving face is manually adjusted by frequency conversion in the frequency conversion mode, or it is directly operated at a constant frequency in the power frequency mode, it will cause waste of power capacity and affect the transportation efficiency of underground coal flow and coal production efficiency.

Method used

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  • An intelligent speed regulation system and method for coal flow transportation in fully mechanized caving working face of coal mine
  • An intelligent speed regulation system and method for coal flow transportation in fully mechanized caving working face of coal mine
  • An intelligent speed regulation system and method for coal flow transportation in fully mechanized caving working face of coal mine

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Embodiment

[0055] The working mode of the fully mechanized caving face transportation equipment (the front scraper conveyor 2, the rear scraper conveyor 4 and the reloading machine 5) in the present invention is the frequency conversion working mode, and the load current value is used as a reference to coordinately adjust the three The operating frequency of the transportation equipment enables each transportation equipment to operate at an appropriate operating frequency to match and balance their respective transportation loads, thereby realizing continuous work of the transportation equipment without stopping and improving the efficiency of coal flow transportation and coal production efficiency. Its transport load is reflected by the current of the respective running motors.

[0056] The specific expression that the current can reflect the load size of the transportation equipment is as follows:

[0057] P r = r·U·I·cosα (1)

[0058] In the formula, P r r is the number of stator p...

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Abstract

The invention discloses an intelligent speed regulation system and method for coal flow transportation in fully mechanized caving working faces of coal mines, which are used to control the front scraper conveyor, rear scraper conveyor and For the operating frequency of the reloader, the present invention uses the load current values ​​of the three transport equipment as a reference to coordinately adjust the operating frequency of the three transport equipment, so that each transport equipment operates at an appropriate operating frequency to match and balance the respective transport loads, thereby realizing transportation The equipment works continuously without stopping, improving the efficiency of coal flow transportation and coal production efficiency.

Description

technical field [0001] The invention relates to the field of coal flow transportation in fully mechanized caving working faces in coal mines, in particular to an intelligent speed regulation system and method for coal flow transportation in fully mechanized caving working faces in coal mines. Background technique [0002] In the coal mine fully mechanized caving face, the front scraper conveyor, the rear scraper conveyor and the reloader are the main transportation equipment in the coal mine, and the degree of automation determines the efficiency of coal transportation. During the coal flow transportation process of the fully mechanized caving working face in the coal mine, the coal shearer walking on the front scraper conveyor first cuts the coal wall in front of the shearer, and the cut coal falls into the front scraper conveyor. And it is transported to the reloader by the front scraper conveyor, and at the same time, the hydraulic support is used to put the top coal thro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F13/06E21F17/18E21C35/20E21D23/12
CPCE21C35/20E21D23/12E21F13/06E21F13/063E21F17/18
Inventor 路绪良王忠宾闫海峰谭超司垒安晓飞
Owner CHINA UNIV OF MINING & TECH
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