A kind of crushing and granulating equipment and working method for biomass power generation

Abstract

The invention discloses a crushing and granulation equipment and a working method for biomass power generation, comprising a crushing system and a granulation component connected in sequence: the crushing system includes a feeding barrel, a crushing mechanism, a screening device, and a screen which are connected in sequence. The feeding device includes a feeding conveyor belt for conveying the fine material to the granulation assembly, and a return material elevator for conveying the coarse material to the feeding barrel; Through the feeding port of the crushing mechanism, the feeding barrel can rotate on its central axis; the crushing mechanism is vertically arranged and the inner wall is provided with a plurality of vertically arranged vertical baffles, the axis of the crushing mechanism is provided with a rotatable main shaft, the main shaft A plurality of blades are provided, and the vertical baffle is provided with a knife groove that matches the position of the blades. The invention has better crushing effect and granulation effect, which is mainly reflected in vibrating screening for the crushed straw, and secondary recycling and crushing of the incompletely crushed straw. The way of hydraulic extrusion can also generate higher granulation pressure.

Description

technical field [0001] The invention relates to the technical field of biomass power generation raw material processing, in particular to a crushing and granulation equipment and a working method for biomass power generation. Background technique [0002] Biomass power generation is the use of biomass energy for power generation, which is a type of renewable energy power generation, including direct combustion of agricultural and forestry wastes, gasification of agricultural and forestry wastes, waste incineration, and landfill gas. , Biogas power generation. In recent years, crop straw power generation has developed rapidly, which not only alleviates the technical problem of environmental pollution caused by crop straw burning, but also effectively saves a large amount of coal resources. [0003] In the prior art, to generate electricity from crop straws, the crop straws need to be dried, pulverized, and granulated in sequence. Commonly used granulators include screw extru...

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Problems solved by technology

[0003] In the prior art, the power generation of crop straws needs to be dried, crushed and granulated sequentially. Commonly used granulators include screw extrusion type, counter-roll extrusion type and strand granulator. These granulators can only Realize the granulation function, which is suitable for the raw materials that have been preliminarily broken, but it is difficult to apply to the easily entangled straw

Furthermore, the crushing and granulator integrated equipment in the prior art is prone to jamming. There are two main reasons for this. One is that the degree of crushing is not enough; the other is that the granulation pressure is insufficient.

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