A scraper conveyor and its adaptive speed regulation method

A technology of scraper conveyor and speed regulation method, which is applied in the direction of conveyors, conveyor objects, conveyor control devices, etc., can solve the problems of inconvenient installation of sensors to detect the amount of coal transported, and no mature and reliable application solutions, etc., to achieve The effect of high reliability

Active Publication Date: 2021-11-30
QINGDAO CCS ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the frequency conversion drive of scraper conveyors has been popularized, there is no mature and reliable application scheme for the automatic speed regulation operation of scraper conveyors. There are coal shearers on scraper conveyors walking back and forth, and it is not convenient to install sensors to detect coal transportation. quantity

Method used

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  • A scraper conveyor and its adaptive speed regulation method
  • A scraper conveyor and its adaptive speed regulation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, this embodiment proposes an adaptive speed regulation method for a scraper conveyor, which is specifically described as follows:

[0035] S1. Determination of the position of the shearer:

[0036] Obtain the real-time position of the coal shearer on the scraper conveyor, obtain the length Wm of the scraper conveyor, and the length Wm of the scraper conveyor is a known value.

[0037] According to the real-time position of the shearer and the length of the scraper conveyor, the position of the shearer is quantified as a value X in A-100, where X>0.

[0038] Specifically, the method of quantifying the position of the shearer as a numerical value X is: X=A+Ws×(100-A) / Wm, where A is a set value, and 0

[0039] When Ws is at the tail, Ws=Wm, X=...

Embodiment 2

[0062] The difference between this embodiment and Embodiment 1 is that this embodiment uses Y as the basis to realize the automatic speed regulation operation of the scraper conveyor in a different way, and this embodiment is a linear speed regulation method:

[0063] Y=(F*100) / (Tm-Tk), (0≤Y≤100).

[0064] Determine the maximum speed Smax and minimum speed Smin of the scraper conveyor, and the set speed of the scraper conveyor is Sx=Y×(Smax-Smin) / 100 +Smin.

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Abstract

The invention provides a scraper conveyor and its self-adaptive speed regulation method, which can obtain the real-time position value of the scraper conveyor when the shearer is running; read and record the running torque value of the frequency converter of the scraper conveyor, Through data analysis, the no-load torque value and full-load torque value of the scraper conveyor are obtained; through the relevant calculation of the frequency converter torque, speed, and shearer position, the current coal transportation volume of the scraper conveyor is simulated; according to The calculated coal volume is used to adjust the given speed of the scraper conveyor; the entire speed regulation process does not require the participation of any auxiliary sensors, and the reliability is higher.

Description

technical field [0001] The invention belongs to the technical field of speed regulation control of scraper conveyors, and in particular relates to a scraper conveyor and an adaptive speed regulation method thereof. Background technique [0002] In the fully mechanized coal mining face, the scraper conveyor is the first transportation equipment for coal mined by the shearer. It is widely used in coal mining, and every fully mechanized mining face needs to use this equipment. [0003] Scraper conveyors generally use multiple drives, at least one drive motor at the head and tail of the scraper conveyor. The total power varies according to the working surface conditions. The small total power is 500kW, and the larger power The total power of the scraper conveyor reaches 4800kW. [0004] With the development of frequency conversion technology, most scraper conveyors have adopted frequency conversion drive. The variable frequency drive prolongs the start-up acceleration process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G43/00B65G19/00
CPCB65G19/00B65G43/00
Inventor 刘锡安宋承林杨绪峰张鸿波韩宁
Owner QINGDAO CCS ELECTRIC CORP
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