High-efficiency hammer mill

Abstract

The invention relates to a high-efficiency hammer mill. The high-efficiency hammer mill comprises a crushing chamber and a re-crushing chamber, wherein the crushing chamber comprises an upper body, a screen and a rotor assembly; the screen is arranged in the upper body, and the screen is wound outside the rotor assembly in the rotating direction of the rotor assembly; and the re-crushing chamber comprises a U-shaped groove and a rotary moving cutter, the U-shaped groove is formed in the bottom of the upper body, auxiliary wings extend from the two sides of the top of the U-shaped groove, the rotary moving cutter is rotationally arranged in the U-shaped groove, the rotation axis of the rotary moving cutter is parallel to the rotation axis of the rotor assembly, and the re-crushing chamber communicates with the crushing chamber. The high-efficiency hammer mill has the beneficial effects that when materials pass through the re-crushing chamber, the materials collide with rotary moving blades, so that on one hand, the collision efficiency of the materials is improved, on the other hand, a material circulation layer is further broken, the uniformity of material crushing particle size distribution is improved, and the materials meeting the particle size requirement are discharged through meshes of the screen in time.

Description

technical field [0001] The invention belongs to the technical field of hammer mills, in particular to a high-efficiency hammer mill. Background technique [0002] At present, there are many kinds of hammer mills. With the needs of market development, hammer mills are gradually developing in the direction of large-scale and high energy efficiency. The hammer mill includes an upper body, a rotor assembly, a screen, and a main motor arranged outside the upper body. The rotor assembly includes a main shaft and a hammer arranged on the main shaft. The screen is arranged outside the hammer and around the main shaft. In the upper body, a crushing chamber is formed inside the screen. When the hammer mill is working, the main motor drives the rotor assembly to rotate at a high speed, so that the hammers on the rotor assembly can participate in the work, and the material enters the crushing chamber from the feeding port on the upper part of the upper body, and then it is mixed with t...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem in the prior art that the crushed material cannot be discharged in time due to the existence of a material circulation layer in the crushing chamber, the present invention provides a high-efficiency hammer-type crushing machine

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