Vertical multi-stage coaxial impact crushing sorting unit

Abstract

The invention relates to a vertical multi-stage coaxial impact crushing sorting unit, which is structurally characterized in that an impact crushing sorting mechanism or a plurality of impact crushing sorting mechanisms are arranged along a vertical main shaft from top to bottom; the heads and the tails of two adjacent impact crushing sorting mechanisms of the impact crushing sorting mechanisms are in head-tail make connection; the whirling motion crushing cavity of each impact crushing sorting mechanism is a semi-closed annular space the top of which is sealed and the bottom of which is opened; the space is provided with a plurality of pulse exhaust vents communicated with the whirling motion crushing cavity and space in a hopper; in the whirling motion crushing cavity, a reaction conical surface which corresponds to a rotor jet orifice is arranged, wherein the diameter distribution of the reaction conical surface is an inverted big-end-up cone, and the surface thereof is distributedwith grinding teeth; and a discharging flange bulges at the inner side of an annular roof in the whirling motion crushing cavity. The single-stage crushing sorting and multi-stage flow crushing are carried out on crushed substances from top to bottom by connecting multi-stage impact crushing sorting mechanisms with similar structures on the vertical main shaft in series in manner of closed circuit, thereby realizing the crushing sorting work of discharge multi-stage flow crushing, discharge impact crushing, discharge whirling motion crushing, discharge centrifugal sorting, discharge centrifugal screening and the like.

Description

technical field [0001] The invention relates to a vertical multi-stage coaxial impact crushing and sorting device, in particular to a crushing and sorting device for slurry materials with a large water content, and dry crushed materials with low density, medium and small hardness, and fluidity after crushing. Crushing and sorting of permanent solid materials. Background technique [0002] In production, people have invented various pulverizers to pulverize materials. They all have their own shortcomings such as high energy consumption and many wearing parts. Especially in the modern agricultural and sideline product processing industry, the commonly used fly hammer type Pulverizers and rasp mills have high energy consumption and low output, many wearing parts and large losses. They all use hammers or files running around the shaft at high speed to directly crush the materials in the crushing area composed of curved screens. Beating, cutting, and filing are used to complete ...

AI Technical Summary

Problems solved by technology

[0002] In production, people have invented various pulverizers to pulverize materials. They all have their own shortcomings such as high energy consumption and many wearing parts. Especially in the modern agricultural and sideline product processing industry, the commonly used fly hammer type Pulverizers and rasp mills have high energy consumption and low output, many wearing parts and large losses. They use hammers or files running around the shaft at high speed to directly crush the materials in the crushing area composed of curved screens. Beating, cutting, filing to complete the crushing, qualified products are discharged through the screen holes

In actual production, due to the small screen holes, it is easy to block, and a large amount of qualified crushed materials stay in the crushing area, hindering the work of the fly hammer. For wet materials, in order to facilitate the smooth flow of qualified materials out of the screen holes, it is necessary to dilute with water. Mixing, a large amount stays in the crushing area, so that the fly hammer does a lot of useless work, the crushing effect is not good, the output is low, and it causes a lot of energy waste and loss of mechanical parts

[0003] The current PL impact sand making machine is a high-efficiency crusher that saves energy and materials. It is also widely used in the field of rough grinding, but its highest yield is only 90%. It is difficult to crush materials such as grains and plastics that require a high particle size rate, and the moisture content of the crushed materials of the PL impact sand making machine must not exceed 20%, and it is also difficult to crush slurry materials with a water content greater than 50%. Moreover, the vortex crushing chamber is open and communicated with the feed inlet, so the powerful airflow ejected from the rotor can easily run away from the feed inlet, and cannot be well utilized, resulting in energy loss

[0004] The patent No. 94211621.6 multi-layer rotor impact crusher, which is equivalent to the overlap of two PL impact crushers, is driven by a common power, and its yield is higher than that of a single-layer PL impact crusher, and the particle size is also smaller than the latter , but it also has too many unqualified pellets in the finished product, and it is not suitable for crushing operations of broken materials with a moisture content of more than 20%.

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