Closed type wood block separator

Abstract

The invention relates to a closed type wood block separator which comprises a double-channel tube box and a wood block grinder, wherein a powder cabin box opening is formed in the top of the double-channel tube box; a grinder box opening is formed in the bottom of the double-channel tube box; a hopper type box cabin is arranged in an inner chamber of the double-channel tube box; coal powder channels are arranged on the two sides of the hopper type box cabin; the wood block grinder comprises a stretchable jacking device and a rotating smashing head; the stretchable jacking device is arranged at the middle part of the inner chamber of the hopper type box cabin; the rotating smashing head is arranged at the bottom of the stretchable jacking device; a coal powder grid is arranged at the top of the hopper type box cabin; an insulating flow guide valve is arranged between the coal powder channels and the grinder box opening. The double-channel tube box of the closed type wood block separator is integrally connected with a ball mill coal powder pipe, two coal powder channels are used for conveying the coal powder in turn, the coal powder grid is used for separating the wood blocks from the coal powder, the wood block grinder is used for grinding the wood blocks into powder, the powder is mixed with the coal powder to be sent into a boiler for burning, and the phenomenon of influencing coal pulverizing system by gas leakage and powder leakage is avoided. Thus, the closed type wood block separator has the advantages of reasonable structure, simple control and capability of improving production efficiency.

Description

technical field [0001] The invention belongs to a wood block separator, in particular to a closed wood block separator. Background technique [0002] In coal-fired power plants, a drum coal mill is often used to grind coal into powder, and then send the coal powder into the boiler for combustion. The coal mill can conveniently grind the coal into powder, but the wood mixed in the coal powder However, there is no way to crush the lumps. For this reason, a wood separation device is provided in the coal pulverized pipe of the coal mill to prevent the wood from entering the pulverized coal bin and causing pipeline blockage. The prior art wood block separation device can only separate the wood blocks from the coal powder into the wood block storage bin. However, during the process of taking out the wood block from the wood block storage bin, air leakage and powder leakage often occur and affect the pulverization system. normal production conditions. Contents of the invention ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of easy air leakage and powder leakage in the prior art wood block separator, the present invention aims to provide a closed wood block separator, which includes a double-channel pipe box and a wood block crusher, both It can separate the wood blocks mixed in the coal powder, and can also grind the wood blocks into powder and put them into the coal powder bin together with the coal powder, without affecting the normal production of the pulverizing system.

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