CN102240580A

CN102240580A - Hammer pulverizer

Info

Publication number: CN102240580A
Application number: CN2010101757951A
Authority: CN
Inventors: 俞信国; 乐其呈; 俞正
Original assignee: Individual
Current assignee: SHANGHAI SPRING VALLEY MECHANISM MANUFACTURING Co Ltd
Priority date: 2010-05-14
Filing date: 2010-05-14
Publication date: 2011-11-16
Anticipated expiration: 2030-05-14
Also published as: CN102240580B

Abstract

The invention relates to a hammer pulverizer, which comprises a feed inlet (1), hammers (2), a rotor (3), rotary plates on the rotor (4), blades (5), a motor (6), a discharge hole of the pulverizer (7), a body of the pulverizer (8), sieve sheets (9), a door (10) and pressurized screen frames (11), wherein, the blades (5) are added between the rotary plates, two sheets of the blades formed with 180 DEG in each shift are arranged in line shape, blades in adjacent two shifts are taken as a right angle with each other, the rotary plates (4) opens a plurality of vent holes at the place close to a rotating shaft. Therefore, wind can be inlet from the gap of the shaft holes at two sides of the pulverizer when the rotor rotates, and then wind is passed through the vent holes of the rotary plates, partial material of ineffective motion stored in the central rotor can be pushed to hammers terminus and crushed by the hammers under the fanning of the blades, simultaneously, wind pressure with changing pulse is provided by the blades which destroys the uniformly centrifugal force of a material ring in the sieve and the negative pressure outside the sieve, thereby the output and the uniformity of the material can be raised, the screen blinding phenomenon can be improved.

Description

Hammer crusher

Technical field

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

Background technology

This type of pulverizer usually by pulverizer charging aperture (1), hammer leaf (2), rotor (3), be contained in epitrochanterian rotating disk (4), motor (6), pulverizer discharging opening (7), body (8), sieve sheet (9), door (10), press screen frame (11) etc. to form.During work, drive rotor (3) by motor (6), make hammer leaf (2) rotation on the rotor (3), material is come in the back by constantly pulverizing of hammer leaf (2) from charging aperture (1), and the qualified powder after the pulverizing passes the sieve aperture of sieve sheet (9), discharges from pulverizer discharging opening (7).

There is following problem in this class pulverizer:

1, after material advanced in the pulverizer, material was with hammer leaf circular motion in the same way, and under action of centrifugal force, the sieve surface forms the material ring, and the centrifugal force of material ring has the trend of stifled sieve aperture equably towards sieve aperture, and unfavorable qualified material in time goes out sieve; The pulverizer discharging opening has negative inferior air draught usually, and the outer negative pressure uniformly of sieve also is unfavorable for sieving stirring of interior putty particle.

2, in the rotor mill centre, there is the material lagging of considerable part to roll all the time, because the radius of rotor center is little, the linear velocity of percussion is little between the material, the material of central part is in the lost motion state all the time.

Because above 2 points cause that pulverizer yields poorly, the uniformity is poor, and for a long time, this is one of crucial difficult problem of puzzlement pulverizer technology raising.

Summary of the invention

The object of the invention provides a kind of hammer crusher, requirement is in pulverizer, can produce the blast of other a kind of variation, make interior centrifugal force uniformly of sieve and the outer negative pressure of sieve give destruction, produce anti-stifled sieve effect, simultaneously, delay is rolled in the partial material of rotor center, shift hammer leaf end place rapidly onto, pulverize, thereby reach the purpose that improves output, improves the uniformity, prevents to block up sieve by the high speed hammer leaf.

Key of the present invention is to increase fan blade in the rotating disk of rotor mill.Structure is as follows:

See Fig. 1, Fig. 2 is by pulverizer charging aperture (1), hammer leaf (2), rotor (3), be contained in epitrochanterian rotating disk (4), blade (5), motor (6), pulverizer discharging opening (7), body (8), sieve sheet (9), door (10), press screen frame (11).

Among the figure, rotor (3) is equipped with multi-disc rotating disk (4), fan blade is installed between the rotating disk, 2 fan blades are installed between per 2 rotating disks, the direction of two fan blades is 180 degree, also equal on the same straight line of crossing the center of circle with the distance in the center of circle, it is staggered that the fan blade at the interval of adjacent discs is mounted to 90 degree, and rotating disk (4) is leaving several air vents near rotating shaft place, like this, when rotor rotates, wind can pass the air vent of rotating disk, under the agitating of fan blade again from the gap location air intake of pulverizer both sides axis hole, to remain in the partial material of rotor center, shift hammer leaf end place rapidly onto and allow the high speed hammer leaf pulverize; Simultaneously, adjacent discs becomes the staggered fan blade of 90 degree, sieving the blast motion that inner surface not only can form the wind pressure pulsation of vertical direction but also can form horizontal phase, destroyed the centrifugal force and the outer negative pressure of sieve of material ring in the sieve, make that qualified material is easier to go out sieve, thereby obviously improve crush efficiency, improve material the uniformity, prevent stifled sieve, reach purpose of the present invention.

Description of drawings

Fig. 1 illustrates a kind of horizontal hammer crusher, pulverizer charging aperture (1), hammer leaf (2), rotor (3), rotating disk (4), fan blade (5), motor (6), pulverizer discharging opening (7), body (8), sieve sheet (9), door (10), pressure screen frame (11).

Fig. 2 is the profile of pulverizer.

Fig. 3 is the profile of rotor.

Fig. 4 is the vertical view of rotor.

Fig. 5 is the side view of rotor.

Specific embodiment:

Embodiment 1: Fig. 1, Fig. 2, a kind of horizontal pulverizer, is contained in epitrochanterian rotating disk (4), fan blade (5), motor (6), pulverizer discharging opening (7), body (8), sieve sheet (9), door (10), presses screen frame compositions such as (11) at pulverizer charging aperture (1), hammer leaf (2), rotor (3).Its rotor Fig. 3, fan blade is installed between the rotating disk, 2 fan blades are installed between per 2 rotating disks, the direction of two fan blades is 180 degree, on the same straight line of crossing the center of circle, and it is equal with the distance in the center of circle, the fan blade at the interval of adjacent discs becomes 90 degree staggered, like this, sieving the wind motion that inner surface not only can form the wind pulse of vertical direction but also can form horizontal phase, destroy in the sieve centrifugal force and the outer negative pressure of sieve uniformly, made that qualified material is easier to go out sieve, thereby obviously improved crush efficiency, improve the uniformity of comminuting matter.

The rotor of this band fan blade also can be contained on the pulverizer that screen cloth can vibrate, and also can be contained in to have on the pulverizer of deciding hammer and other various pulverizers.The length variation of any fan blade, number change, setting angle variation etc. all are involved.

Beneficial effect:

The pulverizer of fan blade is housed, during the rotor rotation, wind can pass the air vent of rotating disk again from the gap location air intake of pulverizer both sides axis hole, under the agitating of fan blade, to remain in the partial material of rotor center, shift hammer leaf end place rapidly onto, simultaneously, by the fan blade that staggers, a kind of blast of pulsatile change is provided, has destroyed in the sieve centrifugal force and the outer negative pressure of sieve uniformly, make that qualified material is easier to go out sieve.Thereby obviously improve crush efficiency, improve the uniformity of comminuting matter, to improving the stifled sieve phenomenon of materials such as little sieve aperture, fine powder material, high-moisture, high fiber, effect is obvious especially.

Claims

1. beater disintegrating machine, mainly comprise: pulverizer charging aperture (1), hammer leaf (2), rotor (3), rotating disk (4), blade (5), motor (6), pulverizer discharging opening (7), body (8), sieve sheet (9), door (10), pressure screen frame (11) is characterized in that upward installation fan blade (5) of rotating disk (4).

2. beater disintegrating machine as claimed in claim 1, it is characterized in that, 2 fan blades (5) are installed between per 2 rotating disks (4) on the described rotor (3), the direction of two fan blades is 180 degree, also equal on the same straight line of crossing the center of circle with the distance in the center of circle, also can the multi-disc symmetry.

3. beater disintegrating machine as claimed in claim 1 or 2 is characterized in that, the fan blade at the interval of adjacent discs becomes 90 degree staggered, also can become other angle staggered.

4. beater disintegrating machine as claimed in claim 1 or 2 is characterized in that, rotating disk (4) is leaving several air vents near rotating shaft place, is keeping under sufficient intensity and the dynamic balancing condition, and hole number, hole shape, hole area are not limit.