Coal briquette crashing device used for boiler

Abstract

The invention discloses a coal briquette crashing device used for a boiler. The coal briquette crashing device comprises a shell, the shell comprises an upper cavity, a middle cavity and a lower cavity, the three cavities are a first-stage crashing chamber, a second-stage crashing chamber and a coal briquette storing chamber in sequence, a support is horizontally arranged inside the first-stage crashing chamber, and an extrusion roll mechanism is installed on the support. A feeding port is formed in the portion, over the extrusion roll mechanism, of the shell, a circle of roller path is arranged on the internal surface of the second-stage crashing chamber, a rotating crashing device assembly is installed on the roller path, a vibration metal screening plate is arranged at the connecting position of the second-stage crashing chamber and the coal briquette storing chamber, and a discharging connecting opening is formed in one side of the coal briquette storing chamber and connected with a feeding connecting opening of the boiler. The coal briquette crashing device and the boiler are of an integrated structure, the defect that in the prior art, coal is carried back and forth is completely overcome, working intensity is relieved, cost investment is small, working efficiency is high, the mode of two times of crashing is adopted, coal at edges can be crashed, the crashing effect is good, and the heat efficiency when the coal is combusted in the boiler is improved.

Description

technical field [0001] The invention relates to the technical field of boiler equipment, in particular to a coal block crushing device for boilers. Background technique [0002] At present, the fuel of boilers is generally coal, but the thermal efficiency of directly burning coal is low. Therefore, people first crush the coal through a coal crusher, and then use the powdered coal for boiler combustion. The thermal efficiency of coal, but the coal crusher and boiler equipment of the prior art are independent equipment, so this method is relatively cumbersome. First, the coal needs to be transported to the coal crusher, and then the powdered coal It takes a long time to transport it to the boiler, and the work intensity is high, which leads to a large investment in time and manpower. Moreover, the coal crushers in the prior art generally use crushing hammers or crushing wheels for primary crushing, which may cause incomplete crushing, The phenomenon that it is difficult to cr...

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Problems solved by technology

[0002] At present, the fuel for boilers is generally coal, but the thermal efficiency of directly burning coal is low. Therefore, people first crush the coal through a coal crusher, and then use the powdered coal for boiler combustion. Although this method improves The thermal efficiency of coal, but the coal crusher and boiler equipment in the prior art are independent equipment, so this method is relatively cumbersome. First, the coal needs to be transported to the coal crusher, and then the powdered coal It takes a long time to transport it to the boiler, and the work intensity is high, which leads to a large investment in time and manpower. Moreover, the coal crushers in the prior art generally use crushing hammers or crushing wheels for primary crushing, which may cause incomplete crushing, The phenomenon that it is difficult to crush the coal at the edge, resulting in uneven coal particle size, and even coal lumps may be wrapped in powdered coal, which will reduce the thermal efficiency of coal

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