Horizontal pulverizer

Abstract

The invention discloses a horizontal crusher belongs to the crusher technical fields, including a crushing chamber formed of the closing end plate and the lateral plate, the top of the chamber sets a feed inlet, while the inner of the chamber sets a rotor which is fixed on a chief axis horizontal crossing two end plate, the chief axis is fixed on the frame through the bearing, the lower of the chamber sets a discharge door, the space between the chamber and the discharge door is separated with the cribellum with many holes, the cribellum is fixed outside of the rotor half encompassing, and at least on side of the end plate which is in the excircle orthogonal projection of the rotor is fitted with a secondary air inlet. Said invention can destroy the circulating layer in the crushing chamber, which improves the efficiency of the crusher.

Description

technical field [0001] The invention relates to a crushing device in special feed production equipment, in particular to a horizontal grinder. Background technique [0002] In the prior art, there is a horizontal pulverizer, which mainly includes a pulverization chamber closed by an end plate and a side plate. There is a feeding port above the pulverization chamber, and a rotor is arranged in the pulverization chamber, and the rotor is fixed in a horizontal On the main shaft of the two end plates, the main shaft is fixed on the frame through bearings. There is a discharge port under the crushing chamber. The structure is arranged on the outer side of the rotor, and the side plate is located on the outer side of the screen to provide a supplementary air port. When the pulverizer is working, the material suction device is connected to the discharge port, and at the same time, the external power source drives the rotor to rotate through the main shaft, and the large particle m...

AI Technical Summary

Problems solved by technology

When the pulverizer is working, the material suction device is connected to the discharge port, and at the same time, the external power source drives the rotor to rotate through the main shaft, and the large particle materials from the feed port collide with the rotor for several times, so that the material is broken into pieces that can be worn through. The fine particles that pass through the mesh on the sieve plate are discharged from the discharge port under the action of the suction device. Due to the centrifugal movement of the material, the large particles are easily distributed outside and block the mesh. , so that the materials of small particles cannot be discharged, so that a circulation layer is formed within a certain range of rotor movement, and the particles make circular motion in the circulation layer, and it is difficult to pass through the screen, which reduces the efficiency of the pulverizer. In order to solve the above problems, it is necessary Indispensably, a supplementary air port is set on the side plate. During operation, both the crushing chamber and the discharge port are in a negative pressure state, and the external natural wind can be sucked into the device through the supplementary air port, and blow directly to the screen in the crushing chamber. It can blow away part of the residual material on the outer surface of the screen, so that the small particle material can be easily discharged, which improves the efficiency of the pulverizer. At high speed, the existence of the circulating layer in the crushing chamber still affects the crushing output; the existence of the supplementary air port on the side plate also reduces the pressure difference inside and outside the sieve plate, which affects the working efficiency of the suction device; in addition, the bearings at both ends of the main shaft are easy to heat up

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