Scraper conveyor and self-adaptive speed regulating method thereof

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: 2020-09-22
QINGDAO CCS ELECTRIC CORP
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  • 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 operatio

Method used

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  • Scraper conveyor and self-adaptive speed regulating method thereof
  • Scraper conveyor and self-adaptive speed regulating method thereof

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Experimental program
Comparison scheme
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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 a self-adaptive speed regulating method thereof. The method comprises the steps as follows: acquiring a real-time position value of the scraper conveyor when a shearer runs; reading and recording a running torque value of a frequency converter of the scraper conveyor, and obtaining a no-load torque value and a full-load torque value of the scraper conveyor through data analysis; simulating the current coal conveying capacity of the scraper conveyor by related calculation of torque, speed and shearer position of the frequency converter; and adjusting given speed of the scraper conveyor according to the calculated coal transportation amount. Any auxiliary sensors are not required to participate in the whole speed regulation process, and 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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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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