Coal cracker with vertical-type rotating shafts

Abstract

The invention relates to a coal cracker with vertical-type rotating shafts, which comprises a feed port formed at the upper part of a housing, a discharge port formed at the lower part of the housing and a vibration device mounted on the housing, wherein vertical-type rotating shafts with squeezing rollers are arranged inside the housing, the squeezing rollers arranged on two adjacent vertical-type rotating shafts define a gap for squeezing raw materials, a meshed vibrating screen is arranged on a support frame inside the housing in a way that the included angle between the meshed vibrating screen and a horizontal plane is not more than 90 degrees, the meshed vibrating screen is connected with the vibration device, the vertical-type rotating shafts pass through the meshed vibrating screen from top to bottom, and the squeezing rollers are positioned at the upper part of the meshed vibrating screen. The invention has the benefits that: the vertical-type rotating shafts are mounted inside elongated round holes, so that the distance between two adjacent vertical-type rotating shafts is adjusted to meet the requirements for different coal particle sizes and further to ensure the yield of coal particles; the meshed vibrating screen that forms a certain angle relative to the horizontal plane is connected with the vibration device, so that the coal materials are vibrated and inclined downward at the same time; and besides, under the squeezing action of the squeezing rollers and the vibration action, the effect of cracking the coal materials is improved and the problems of adhesion and blockage of the coal materials in the coal cracker can be solved.

Description

technical field [0001] The invention relates to a coal crusher, in particular to a vertical rotary shaft coal crusher. Background technique [0002] The most commonly used in the market is the ring hammer coal crusher. This kind of coal crusher mainly uses the ring hammer suspended on the high-speed rotating wheel to impact and crush the material first. After the impact, the material is crushed by the ring hammer and the screen plate. Further broken by extrusion. Although this ring hammer type coal crusher has the advantages of strong adaptability to coal types, high efficiency, low energy consumption, and simple operation, the circulating fluidized bed boiler is mainly made of coal gangue, which is harder than pure coal, so this ordinary The output particle size of the coal crusher cannot be guaranteed, which directly affects the operation effect of the boiler. Moreover, the impact of sundries and moisture in the material will cause sticking and blocking of the coal crush...

AI Technical Summary

Problems solved by technology

Although this ring hammer type coal crusher has the advantages of strong adaptability to coal types, high efficiency, low energy consumption, and simple operation, the circulating fluidized bed boiler is mainly made of coal gangue, which is harder than pure coal, so this ordinary The output particle size of the coal crusher cannot be guaranteed, which directly affects the operation effect of the boiler

Moreover, the impact of sundries and moisture in the material will cause sticking and blocking of the coal crusher.

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