A kind of impurity sorting comprehensive crusher for fluidized bed boiler fuel

Abstract

The invention discloses an impurity sorting comprehensive crusher for a fluidized bed boiler fuel, belongs to the crusher in the material crushing technical field, and provides the impurity sorting comprehensive crusher for the fluidized bed boiler fuel, wherein the crusher can be used for processing a crushed material containing more hard stones, iron blocks, wood blocks and other impurities, allows the crushed material after crushing treatment to have less impurities, has relatively high commodity degree and is provided with a yielding protecting device. The crusher comprises a coarse crushing operation zone and a fine crushing operation zone; the coarse crushing operation zone comprises an upper coarse crushing zone machine body which is internally provided with a coarse crushing toothed roller, a coarse crushing discharging sieve plate is arranged below the coarse crushing toothed roller, the inner wall of the upper coarse crushing zone machine body is hinged with a coarse crushing toothed plate, the coarse crushing toothed plate is relatively engaged with the coarse crushing toothed roller, and one side of the coarse crushing toothed plate is provided with the yielding protecting device; a part, at a discharging side of the coarse crushing discharging sieve plate, of the inner wall of the upper coarse crushing zone machine body is provided with an impurity storage cavity. The crusher is suitable for producing the circulating fluidized bed boiler fuel.

Description

technical field [0001] The invention belongs to the technical field of material crushing, and relates to a crusher, in particular to a crusher for fluidized bed boiler fuel. Background technique [0002] Crusher can be divided into medical crusher and mining crusher according to major categories. Among them, the medical crusher is mainly used for crushing stones. Generally, resonance and other methods are used to crush stones to avoid various risks caused by surgery. According to different crushing principles, mining crushers can be divided into jaw crushers, impact crushers, vertical impact crushers, hydraulic cone crushers, ring hammer crushers, hammer crushers, and roll crushers. , compound crusher, cone crusher, double-stage crusher, gyratory crusher, mobile crusher, etc. When the crusher is working, the motor drives the rotor to rotate at a high speed, and the material enters the crusher cavity evenly. The hammer head rushes towards the baffle plate and sieve bar in ...

AI Technical Summary

Problems solved by technology

However, this type of crusher also has serious defects, that is, when the material to be crushed (coal or coal gangue) contains a large amount of hard stones, iron blocks, and wood blocks, the retreat device frequently retreats, so that the stones, iron blocks, and wood blocks are not crushed. Collect and recycle directly after crushing or insufficient crushing, resulting in a large number of unqualified materials in the circulating fluidized bed boiler fuel, and the crushed materials (coal or gangue) contain more impurities, and their commerciality is poor. Affect the combustion efficiency of fuel, and even produce a large amount of harmful exhaust gas during fuel combustion, polluting the environment

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