A reciprocating coal feeder driven by a linear motor and its control device

Abstract

The invention relates to a linear motor-driven reciprocating coal feeder, and a control device for the reciprocating coal feeder, belongs to the technical field of automatic mine control, and particularly relates to technical schemes of a linear motor-driven reciprocating coal feeder which is applied to a discharge opening in the bottom of a large-scale vertical cylindrical coal bin and a control device for the reciprocating coal feeder. The linear motor-driven reciprocating coal feeder has the advantages that a forward and reverse driving manner is realized by using one frequency converter to drive two linear motors; an on-site operator can conveniently set the flow of the coal feeder through the control device provided by the invention; an on-site display screen can display the set flow, an actual flow and process parameters such as on-duty, day, month and year cumulative amount; reversing switches adopt a redundancy manner, so that the coal feeder and the control device for the coal feeder can be low in failure rate, high in efficiency, simple in structure, light in weight, low in construction cost and high in reliability, and can be widely used in the technical field of automatic mine control.

Description

technical field [0001] The invention relates to a reciprocating coal feeder driven by a linear motor and a control device thereof, which belong to the technical field of mine automatic control, and specifically relate to a reciprocating coal feeder driven by a linear motor mainly used in a discharge port at the bottom of a large vertical cylindrical coal bunker. Technical scheme of coal machine and control device. Background technique [0002] The coal feeder is an indispensable and important equipment for the production of coal mines, coal washing plants and power plants. It is usually installed at the bottom of the cylindrical coal bunker. It mainly completes the coal blending and feeding between the coal bunker and the belt conveyor in the entire production process. . According to production needs, the coal in the coal bunker is continuously unloaded onto the belt conveyor. [0003] At present, the coal feeders used in power plants, coal washing plants and coal mines ge...

AI Technical Summary

Problems solved by technology

Therefore, existing coal feeders have defects such as high failure rate, low efficiency, complex structure, heavy weight, and high cost.

It is impossible to configure the actual flow rate per hour, class, day, month, and year through the configuration software, and it is impossible to use network communication to exchange information with the upper computer or industrial computer, and it is impossible to set the flow rate of the coal feeder according to actual needs, and Understand the operation of the inverter, because usually the inverter is installed in the power distribution cabinet of the power distribution room away from the coal feeder, the reliability is low, and it is impossible to remind the maintenance personnel to repair the damaged reversing switch at the right time, so In actual production, there is an urgent need for an electromechanical device with low failure rate, high efficiency, simple structure, light weight, low cost, and modern control functions.

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