CN106334598A

CN106334598A - Hammer mill

Info

Publication number: CN106334598A
Application number: CN201510422349.9A
Authority: CN
Inventors: 俞信国; 乐其呈; 俞正
Original assignee: SHANGHAI SPRING VALLEY MECHANISM MANUFACTURING Co Ltd
Current assignee: SHANGHAI SPRING VALLEY MECHANISM MANUFACTURING Co Ltd
Priority date: 2015-07-17
Filing date: 2015-07-17
Publication date: 2017-01-18

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

A kind of hammer crusher

Technical field

The present invention relates to a kind of hammer crusher, use generally in the industries such as feed, grain, food, chemical industry, medical treatment.

Background technology

Such pulverizer is generally by feeding hole of pulverizer (1), hammer leaf (2), rotor (3), door (4), pressure screen frame) 5), motor (6), pulverizer discharging opening (7), body (8), sieve (9) etc. form.During work, by motor (6) rotor driven (3), the hammer leaf (2) on rotor (3) is made to rotate, material is constantly pulverized by hammer leaf (2) after charging aperture (1) is come in, qualified powder after pulverizing passes through the sieve aperture of sieve (9), discharges from pulverizer discharging opening (7).

This kind of pulverizer there is problems in that

1, when material has just entered pulverizer mouth, down, hammer millses rotate direction vector along garden tangential motion direction, big to the hammering relative velocity of material, crush efficiency is high, after material is hammered by hammer leaf, move in the same direction with hammer leaf, hammer millses are just obviously reduced to the relative velocity of material, and relative velocity is little, crush efficiency just reduces.

2, hammer millses are to make circumference rotation, promote material to move on sieve surface, and the sieve aperture of corresponding hammer leaf easily goes out sieve, but, disintegrator sieving net is wider, only several millimeters of hammer leaf thickness, and the screen surface of the extreme portions between hammer leaf does not correspond to hammer leaf, thus it is mobile few to correspond to screen surface material, screening effect is poor, and pulverizer yields poorly, and the material uniformity is irregular.

3, hammer leaf is subject to frontal impact for a long time, and service life is short.

For a long time, this is the crucial problem that puzzlement hammer crusher technology improves.

Content of the invention

It is an object of the present invention to provide a kind of hammer crusher is not it is desirable to after hammer millses hammering material, material runs around in circles followed by hammer leaf, it is desirable to keep the very big relative speed difference to material for the hammer leaf in follow-up hammering.Meanwhile, except the sieve surface of corresponding hammer leaf motion keeps substantial amounts of material to move, the screen surface of other parts, i.e. part screen surface between hammer leaf, substantial amounts of material also to be kept to move, thus improving crush efficiency, improve the uniformity of comminuting matter.And hammer leaf service life can be extended.

The key of the present invention is as follows using a kind of its structure of newly-designed hammer crusher:

A kind of hammer crusher, is made up of charging aperture (1), hammer leaf (2), rotor (3), door (4), pressure screen frame (5), motor (6), pulverizer discharging opening (7), body (8), sieve (9) etc..Its feature is that described hammer leaf (2) is that hammer leaf operative end surface is tiltedly put the first edge on a knife or a pair of scissors.

Hammer leaf Fig. 5 of pulverizer, hammer leaf is designed to rectangle sheet, and there is pin-and-hole one end, and another operative end surface has the high-abrasive material of hard, and operative end surface is tiltedly put the first edge on a knife or a pair of scissors, and angle a on the inclined-plane that puts the first edge on a knife or a pair of scissors is between 30-60 degree.When pulverizer works, under the ramp effect in the face of putting the first edge on a knife or a pair of scissors of hammer leaf, material is pushed to side, reduce the movement velocity that hammer leaf rotation followed by material, material creates horizontal motion, when the hammer leaf of another grade of follow-up is hammered again with material, the knocking state of material and hammer leaf formation near vertical, very high knocking speed difference can be obtained, improve crush efficiency；Simultaneously, hammer leaf rotates, except promoting partial material in addition to sieve surface is mobile with the hammer leaf direction of motion, also partial material is driven to be displaced sideways on sieve surface, so, the area in sieve surface material movement increased, and sieve surface material migration area and increase, favourable increase yield, improves the uniformity of material.Because hammer leaf operative end surface adopts inclined-plane, reduce material frontal impact, service life extends.For guaranteeing material transverse movement, require the direction of putting the first edge on a knife or a pair of scissors that each one group of coaxial hammer leaf is consistent, corresponding another group of hammer leaf can adopt rightabout, to keep rotor symmetrical balance, phase difference between the different group in hammer leaf direction, can be poor with generation time, make material make moving left and right of horizontal phase in screen surface, increased screening effect.The hammer leaf of Fig. 5, Fig. 6 can match use, and when one group of hammer leaf puts the first edge on a knife or a pair of scissors direction using Fig. 5, corresponding one group must adopt Fig. 6 direction, preserve balance.Fig. 7 can install pairing with positive and negative and use.The present invention can also be provided with, using a kind of, the pulverizer (Fig. 3) determining hammer, so, when material is mobile in sieve surface lateral, produces hammering and shear action with the hammer of determining of side.A kind of pulverizer (Fig. 4) of screen cloth vibration can also be loaded onto, it is characterized in that being provided with vibrating motor below pressure screen frame (5), this vibrating motor (11) is connected with pressure screen frame (unit), by the isolation mountings such as spring make pressure screen frame (unit) and sieve (9) can Independent Vibration, crushing effect is more preferably.

Brief description

Fig. 1, illustrate a kind of hammer crusher, feeding hole of pulverizer (1), hammer leaf (2), rotor (3), door (4), pressure screen frame (5), motor (6), pulverizer discharging opening (7), body (8), sieve (9).

Fig. 2, is the profile of Fig. 1.

Fig. 3, a kind of the pulverizer determining hammer is installed, with addition of and determine hammer (10).

Fig. 4, a kind of the pulverizer that screen cloth can vibrate is installed, with addition of and determine hammer (10), vibration source (11).

Fig. 5, be the present invention pulverizer in hammer leaf.The high-abrasive material part of hammer leaf, is designed to both sides all opening one side bladed states, angle a on the inclined-plane that puts the first edge on a knife or a pair of scissors is between 30-60 degree.

Fig. 6, Fig. 7 are the multi-forms that hammer leaf puts the first edge on a knife or a pair of scissors, Fig. 5 and Fig. 6 is contrary, and Fig. 7 is cutting edge in same direction.

Specific embodiment:

Embodiment 1: Fig. 1, Fig. 2, a kind of horizontal pulverizer, feeding hole of pulverizer (1), hammer leaf (2), rotor (3), door (4), pressure screen frame (5), motor (6), pulverizer discharging opening (7), body (8), sieve (9), etc. composition.Equipped with hammer leaf on rotor.Described hammer leaf front end adopts the Wear-resistant Treatment such as tungsten carbide built-up welding, and becomes basil, and hammer leaf puts the first edge on a knife or a pair of scissors a=45 ° of the angle of angle.Steadily consider from rotor rotation, during using Fig. 7 hammer leaf, symmetrically and evenly can be installed with obverse and reverse, during using Fig. 5, Fig. 6, symmetrically and evenly installed using two kinds of hammer leaves, no matter adopt any hammer leaf, the direction of putting the first edge on a knife or a pair of scissors that each one group of coaxial hammer leaf is consistent, corresponding another group of hammer leaf can adopt rightabout.

In embodiment 2: Fig. 3, the hammer crusher of hammer determined by a kind of band, and feeding hole of pulverizer (1), hammer leaf (2), rotor (3), door (4), pressure screen frame (5), motor (6), pulverizer discharging opening (7), body (8), sieve (9), fixed hammer (10) etc. form.Surely hammer installation requirement and hammer leaf dislocation, and maintain a certain distance, hammer leaf installation method is with embodiment 1.

Embodiment 3: Fig. 4, a kind of hammer crusher of screen cloth vibration, the composition such as feeding hole of pulverizer (1), hammer leaf (2), rotor (3), door (4), pressure screen frame (5), motor (6), pulverizer discharging opening (7), body (8), sieve (9), fixed hammer (10), vibrating motor (11).It is characterized in that being provided with vibrating motor below pressure screen frame (5), this vibrating motor (11) is connected with pressure screen frame (unit), by the isolation mountings such as spring make pressure screen frame (unit) and sieve (9) can Independent Vibration, hammer leaf installation method is with embodiment 1.

Beneficial effect:

Equipped with the pulverizer of the hammer leaf that puts the first edge on a knife or a pair of scissors, after hammer leaf hammering material, material does not run around in circles followed by hammer leaf, in the hammering of another group of hammer leaf, remains that the holding very big relative speed difference to material for the hammer leaf.Meanwhile, except the sieve surface of corresponding hammer leaf motion keeps substantial amounts of material to move, do not correspond to the screen surface of hammer leaf motion, also having substantial amounts of material to move, thus improving crush efficiency, improving the uniformity of comminuting matter.Because hammer leaf operative end surface adopts inclined-plane, reduce material frontal impact, service life extends.Especially embodiment 2,3 increases fixed hammer, increases screen cloth vibration, and effect is particularly evident.

Claims

1. a kind of beater disintegrating machine, mainly includes feeding hole of pulverizer (1), hammer leaf (2), rotor (3), door (4), pressure screen frame (5), motor (6), pulverizer discharging opening (7), body (8), sieve (9), feature is that described hammer leaf (2) is monolateral and puts the first edge on a knife or a pair of scissors.

2. beater disintegrating machine as claimed in claim 1 is it is characterised in that include being arranged at charging aperture (1) determine hammer (10).

3. beater disintegrating machine as claimed in claim 1 is it is characterised in that press below screen frame (5) It is provided with vibrating motor, this vibrating motor (11) is connected with pressure screen frame (unit), fills by vibration isolation such as springs Putting makes pressure screen frame (unit) and the sieve (9) being capable of Independent Vibration.

4. beater disintegrating machine as claimed in claim 1 is it is characterised in that before described hammer leaf (2) Angle a holding the inclined-plane that puts the first edge on a knife or a pair of scissors is between 30-60 degree.

5. beater disintegrating machine as claimed in claim 1 is it is characterised in that each one group of coaxial hammer What piece was consistent put the first edge on a knife or a pair of scissors direction, corresponding another group of hammer leaf then adopts rightabout.