Chain-slat conveyer delayed start control circuit and method

A control circuit and delayed start technology, applied in motor generator control, conveyor control device, starter of a single polyphase induction motor, etc., can solve the problem of undisclosed chain plate machine injury risk and other issues

Pending Publication Date: 2020-08-07
HUAINAN MINING IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the technical solution of this patent does not disclose how to eliminate the potential risk of injury when the chain conveyor in the mine is started to run

Method used

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  • Chain-slat conveyer delayed start control circuit and method

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Embodiment 1

[0036] Such as figure 1 As shown in the figure, a delayed start control circuit for a chain-plate machine, the mining isolated reversing switch 11, the main contact 13 of the three-phase vacuum AC contactor, and the surge protector 15 are connected in series in sequence, and the mining isolated reversing switch 11 is connected with the three-phase Any two phases of the common part of the main contact 13 of the vacuum AC contactor connected in series are connected to the primary side input port of the mining AC transformer 12, and the secondary side of the mining AC transformer 12 has two outputs, and the first transformer output port 121 outputs 36V AC power, the second transformer output port 122 outputs 100V AC power.

[0037] Mine-used isolation commutation switch 11 is GHK-200A / 1140V switch. This type of switch has isolation function and can change the order of outlet terminals under no-load or load conditions to complete commutation.

[0038] The first emergency stop but...

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Abstract

The invention relates to a chain-slat conveyer delayed start control circuit, belongs to the technical field of gangue discharge of coal mine underground roadway repair working faces, and solves the problem of potential risks of hurting people when a chain-slat conveyer of a mine is started and runs. A mining isolation phase-change switch, a three-phase vacuum alternating current contactor main contact and a surge protector are connected in series in sequence, and any two phases of the common portion of the mining isolation phase-change switch and the three-phase vacuum alternating current contactor main contact which are connected in series are connected with a primary side input port of a mining alternating current transformer; two paths of output on a secondary side of the mining alternating current transformer comprise a first transformer output port and a second transformer output port; and the first transformer output port is connected with an alarm circuit, a delayed start control circuit, a near control start-stop circuit and a remote control start-stop circuit, and the second transformer output port is connected with a fault detection protection circuit. The method comprises the steps of controlling start-stop and emergency stop of the chain-slat conveyer in a near control mode and a remote control mode; and warning nearby personnel to evacuate during starting, therebymaking up for the potential risks caused by instantaneous rotation of the chain-slat conveyer when the switch is started without warning.

Description

technical field [0001] The invention belongs to the technical field of gangue discharge in underground roadway repairing working faces of coal mines, and in particular relates to a chain conveyor delay start control circuit and a control method. Background technique [0002] For the deep wells of coal mines, the ground pressure is high, and the bottom drum section of the production working face frequently occurs, and the maintenance of the mine is relatively intensive. Most gangue removal systems in underground roadway repairing working faces use SGB420 / 40Z scraper conveyors to remove gangue. The head bypasses the sprocket and the tail bypasses the drum to form a closed endless chain to drive the scraper to run in the middle groove to take away the gangue, complete the gangue removal work, and form a gangue discharge system, thereby reducing the transportation pressure of wagon dispatching and manual loading. The labor intensity of carts and carts. [0003] When the existi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G43/02H02P1/26H02P1/02H02P3/02E21F13/06E21F17/18
CPCB65G43/02E21F13/066E21F17/18H02P1/022H02P1/26H02P3/02
Inventor 朱亚运袁成李玉涛蒋西阁
Owner HUAINAN MINING IND GRP
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