Belt conveyor protection circuit

A belt conveyor and protection circuit technology, applied in electrical components, output power conversion devices, DC motor deceleration devices, etc., can solve problems such as the inability of comprehensive protectors and inverter integrated cabinets to match

Pending Publication Date: 2019-10-22
DATONG COAL MINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the comprehensive protector of the belt conveyor cannot match the integrated cabinet of the frequency converter, and provides a protection circuit for the belt conveyor

Method used

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  • Belt conveyor protection circuit

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Embodiment Construction

[0009] In order to illustrate the embodiment of the present invention or the technical solution in the prior art more clearly, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0010] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, and is only for the conven...

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Abstract

The invention belongs to the technical field of belt conveyors, and specifically relates to a belt conveyor protection circuit which solves the problem that a comprehensive protector of the belt conveyor cannot be matched with an integrated cabinet of a frequency converter. The belt conveyor protection circuit comprises a frequency converter start control circuit, a frequency converter stop control circuit and a slip protection delay control circuit which are connected in parallel, wherein the parallel circuit of the three control circuits is connected to two ends of a DC power supply, the output end of the DC power supply is provided with a normally-open contact K, the normally-open contact K serves as a switch of the comprehensive protector for controlling the on-off of a motor of the belt conveyor. The protection circuit can solve the problem that the comprehensive protector of the belt conveyor cannot be matched with the integrated cabinet of the frequency converter in use, does not influence the original performance of the integrated cabinet of the frequency converter and the comprehensive protector of the belt conveyor at all, utilizes the existing equipment, reduces the production cost, also reduces the convenience of repair and maintenance, and effectively ensures the stable and safe operation of the main lifting belt conveyor of the mine.

Description

technical field [0001] The invention belongs to the technical field of belt conveyors, in particular to a belt conveyor protection circuit. Background technique [0002] A coal mine currently uses a DTL80 / 2×75 fixed ordinary flame-retardant belt conveyor produced by Taihang Industrial and Mining Equipment Co., Ltd. in Yuanping City, Shanxi Province. , Deviation protection, temperature protection, over-temperature automatic sprinkler protection, smoke protection, anti-tear protection, tension drop protection, two-way emergency stop switch and speed protection, etc. Originally, the belt conveyor was controlled by a centralized control system, but the centralized control system is a direct start-up control of the belt conveyor. Due to the high failure rate and cumbersome maintenance of the centralized control system, normal production may be affected, and it is a high-energy-consuming power plant. Therefore, the centralized control system is changed to the inverter integrated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P3/08H02M1/36
CPCH02P3/08H02M1/36
Inventor 刘意张泽州史庆顺张春彦郝少飞
Owner DATONG COAL MINE GRP
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