Automatic coal blending system and method for slack coal of coal cleaning plant

Abstract

The invention discloses an automatic coal blending system and method for slack coal of a coal cleaning plant. The automatic coal blending system is composed of three layers, the first layer is a field equipment layer, the second layer is a control layer, and the third layer is a management layer. The field equipment layer consists of a belt conveyor, a belt type coal feeder, a frequency converter, an electric-hydraulic pusher, a stirrer, a belt weigher, an ash content meter and a pan-tilt camera; the control layer is composed of a PAC controller and a switch; the management layer is composed of an upper computer, a video server, a hard disk video recorder and a television wall. The control layer exchanges data with equipment of the field equipment layer through the PAC controller and the switch, acquires equipment data and issues a control command. And the control layer is connected with management layer equipment through the switch to realize data interaction. The problems that a traditional automatic coal blending system is not high in coal blending precision and lacks video monitoring on site can be solved; meanwhile, the system has the functions of accurate control of coal quantity and ash content, automatic control of a gate plate of the coal feeder, video linkage and the like, and the purposes of reducing labor and improving efficiency can be achieved.

Description

technical field [0001] The invention belongs to the technical field of coal blending, and in particular relates to an automatic coal blending system and method for fine coal in a coal washing plant. Background technique [0002] The application of the fine coal blending system in the coal washing plant is a feasible way to realize the efficient utilization of coal resources and reduce pollution. It is also an effective measure for the coal washing plant to satisfy the majority of customer groups and expand economic benefits. It has not only great social benefits, but also Bring good development prospects to the enterprise. At present, there are the following problems in the fine coal blending system of the coal washing plant: the method of coal blending is to manually operate the gate of the coal feeder under the product warehouse, and roughly adjust different types (high ash fine coal, low ash fine coal, and washed fine coal) Coal blending is completed by the given amount ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of low coal blending accuracy caused by manual experience for coal volume adjustment in the traditional automatic coal blending system, no video coverage on the coal blending site, and inaccurate ash monitoring due to the lack of coal blending devices after coal blending.

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