Hammer mill

Abstract

The invention provides a hammer mill. The hammer mill is characterized in that a hammer is such designed that two sides of the front end of the hammer are both in a single-sided edged state and the angle a of each edged slope is in a range of 30 to 60 DEG; so after the hammer hammers a material, the material does not rotate around the hammer, the edged slopes allow the material to carry out transverse movement, and a large velocity difference is obtained when a subsequent group of hammer hammers the material. Under the action of the slopes at cutting edges, the surface of a screen mesh located between hammers allows a great number of the material to maintain transverse movement, so crushing efficiency is improved and uniformity of the crushed material is improved; meanwhile, under the action of the slopes at the cutting edges, impact force on the front of the hammer weakens and the service life of the hammer is prolonged.

Description

technical field [0001] The invention relates to a hammer mill, which is usually used in feed, grain, food, chemical, medical and other industries. Background technique [0002] This type of pulverizer usually consists of a pulverizer inlet (1), a hammer (2), a rotor (3), a door (4), a screen press frame) (5), a motor (6), a pulverizer outlet (7) ), a body (8), a sieve (9) and the like. When working, the rotor (3) is driven by the motor (6) to rotate the hammer (2) on the rotor (3), and the material is continuously pulverized by the hammer (2) after entering from the feed port (1). Qualified powder passes through the sieve hole of the sieve (9) and is discharged from the discharge port (7) of the pulverizer. [0003] This type of shredder has the following problems: [0004] 1. When the material just enters the pulverizer mouth, the direction vector is downward, and the hammer of the pulverizer rotates along the tangential direction of the circle. The relative speed of ham...

AI Technical Summary

Problems solved by technology

[0004] 1. When the material just enters the pulverizer mouth, the direction vector is downward, and the hammer of the pulverizer rotates along the tangential direction of the circle. The relative speed of hammering on the material is high, and the crushing efficiency is high. If they move in the same direction, the relative speed of the pulverizer hammer to the material will be significantly reduced, and if the relative speed is small, the crushing efficiency will be reduced.

[0005] 2. The hammer of the pulverizer rotates in a circle to push the material to move on the screen surface. The sieve hole corresponding to the hammer is easy to sieve. However, the screen of the pulverizer is wide, and the thickness of the hammer is only a few millimeters. Most of the screen surface has no corresponding hammer, so the material on the corresponding screen surface moves less, the screening effect is poor, the output of the pulverizer is low, and the material uniformity is uneven

[0006] 3. The hammer is subject to frontal impact for a long time, and its service life is short

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