Accurate coal blending system of silo and coal blending method of accurate coal blending system

Abstract

The invention discloses an accurate coal blending system of a silo. The accurate coal blending system comprises a coal blending silo, a raw coal in-silo belt conveyor, a silo roof material distribution machine, a coal blending silo bottom belt conveyor, a metering device and a finished coal out-of-silo belt conveyor, wherein a coal inlet of the raw coal in-silo belt conveyor is connected to a storage yard coal blending system, a coal outlet of the raw coal in-silo belt conveyor is connected with a coal inlet of the silo roof material distribution machine, the coal blending silo comprises a plurality of silo tubes, a coal outlet of the silo roof material distribution machine is connected with coal inlets of the silo tubes, coal outlets of the silo tubes are connected with a coal inlet of the coal blending silo bottom belt conveyor, a coal outlet of the coal blending silo bottom belt conveyor is connected with a coal inlet of the finished coal out-of-silo belt conveyor, and a coal outlet of the finished coal out-of-silo belt conveyor is connected with a finished coal storage yard or a shipment system. According to the accurate coal blending system disclosed by the invention, high-accuracy coal blending requirements are met, meanwhile, the coal blending is not limited by the number of storage yard material taking devices, and the coal blending requirements on four or more than four coal types can be met.

Description

technical field [0001] The invention belongs to the field of raw material configuration and transportation, and in particular relates to a silo precise coal blending system and a coal blending method thereof. Background technique [0002] Coal blending refers to the process of blending several different types of coal with different properties into a mixed coal according to a certain proportion, so as to meet the coal quality requirements under different combustion conditions. Coal blending technology can give full play to the advantages of various coal types, realize the stability and balance of coal quality, and facilitate full combustion of coal, improve coal utilization efficiency, and achieve the purpose of saving coal consumption and reducing pollutant emissions. At the same time, coal-fired equipment The operational safety is guaranteed. [0003] Coal blending is a practical technology to improve the quality of coal combustion, which is based on the linear additiv...

AI Technical Summary

Problems solved by technology

This coal blending method has a lot of human factors, and the accuracy is not easy to control, and for the blending of 3 or more types of coal, it is not easy to realize due to the lack of a certain number of reclaiming equipment.

[0007] Although the current coal blending methods on the storage yard can achieve a certain sense of coal blending function, due to the lack of effective flow detection and control, they all belong to the category of coarse coal blending, and cannot realize accurate coal blending in the true sense.

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