Automatic cycle crusher

Abstract

The invention discloses an automatic cycle crusher, comprising a frame, wherein, a feeding port, a crushing cavity and a discharge port are arranged on the frame, the discharge port is provided with a screening device for firstly screening crushed materials, the materials-screening part of the screening device is provided with a horizontal screening conveying device for horizontally conveying the materials and secondly screening the materials, the outlet of the horizontal screening conveying device is provided with a lift conveying device for lifting and conveying the materials into the feeding port so that the materials enter into the crushing cavity for recycling crushing, and the screening device, the horizontal screening conveying device and the lift conveying device are all driven by a drive mechanism. The invention has the advantages that the crushed materials are firstly and secondly screened during horizontal conveying, and conveyed to the feeding port in a lifting way and recrushed by the crusher.

Description

technical field [0001] The invention relates to the technical field of crushers, in particular to a crusher that crushes materials with particle size requirements such as ore, raw coal, coal gangue, etc., and can automatically cycle through multiple crushing until the particle size meets the requirements. Background technique [0002] At present, circulating fluidized bed boilers have very strict requirements on material particle size. In the prior art, the basic structure of the used crusher mainly includes a frame with a feeding port above the frame, a crushing chamber inside the frame, and a hammer driven by a driving mechanism to rotate in the crushing chamber. There is a discharge port under the rack. Its working process is as follows: the material enters the crushing cavity from the feeding port, driven by the driving mechanism, the high-speed rotating hammer head crushes the material, and the crushed material flows out from the discharging port and enters the boiler ...

AI Technical Summary

Problems solved by technology

The boiler with this traditional structure has the following disadvantages: in the crushing of low-quality coal, especially coal gangue, there is a serious problem that the crushing particle size cannot meet the requirements, and the materials exceeding the particle size requirements are brought to the The rear part of the crushing cavity and falls into the discharge port to enter the boiler for combustion

[0004] However, the above-mentioned technical solution still does not solve the technical problem of "when the particle size after crushing is crushed by the impact type and the ring hammer type crushing device respectively, and the particle size still does not meet the standard, the material cannot be automatically circulated to the crusher for re-crushing".

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