Coal mill and coal mill coal seam thickness operation control method and device

A technology of coal seam thickness and operation control, applied in the field of coal mills, can solve the problems of inability to reflect the thickness of each layer of the coal mill, affecting the fine operation control of the coal mill, etc., and achieve the effect of ensuring safety

Active Publication Date: 2022-01-25
NORTH CHINA ELECTRICAL POWER RES INST +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, there is only one switch sensor in the coal mill system at present, which can only reflect whether the grinding rollers and discs are in contact, but cannot reflect the thickness of each layer in the coal mill, which affects the refined operation control of the coal mill

Method used

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  • Coal mill and coal mill coal seam thickness operation control method and device
  • Coal mill and coal mill coal seam thickness operation control method and device
  • Coal mill and coal mill coal seam thickness operation control method and device

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0032] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the emb...

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Abstract

The embodiment of the invention provides a coal mill and a coal mill coal seam thickness operation control method and device. The coal mill comprises a coal mill body, a millstone and at least one milling roller, the millstone and the milling roller are arranged in the coal mill body, the millstone is arranged at a coal falling opening of the coal mill body, the milling roller is provided with a hydraulic oil cylinder and a pull rod in a linkage mode, and a pull rod position sensor is arranged on the pull rod; the coal mill further comprises an image acquisition device and a processor, the image acquisition device is used for acquiring current position information of the pull rod position sensor, and the processor is used for receiving the current position information sent by the image acquisition device and sending a corresponding working control signal to the hydraulic oil cylinder according to a numerical comparison relationship between the current position information and a preset millstone and milling roller distance threshold value; and operation parameters of the coal mill can be effectively adjusted by controlling the thickness of a coal seam in the coal mill, and operation safety of the coal mill is guaranteed.

Description

technical field [0001] The application relates to the field of coal grinding equipment, in particular to a coal grinding machine, a method and a device for controlling the coal seam thickness operation of the coal grinding machine. Background technique [0002] During the operation of the coal mill, if the grinding roller and the grinding disc are in frequent contact, strong vibration will occur, which may easily cause damage to the structure of the coal mill system; if the distance between the grinding roller and the grinding disc is far away, it indicates that there is more coal in the coal mill , it is necessary to adjust the operating parameters of the coal mill such as hydraulic loading force in time to prevent the coal mill from clogging and grinding. However, there is only one switch sensor in the coal mill system at present, which can only reflect whether the grinding rollers and discs are in contact, but cannot reflect the thickness of each layer in the coal mill, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C25/00B02C2/10
CPCB02C25/00B02C2/10
Inventor 程亮刘成永孙亦鹏李战国
Owner NORTH CHINA ELECTRICAL POWER RES INST
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