CN202179981U

CN202179981U - A wavy crushing sieve

Info

Publication number: CN202179981U
Application number: CN 201120275905
Authority: CN
Inventors: 甄莉; 陈勇; 杨焕民
Original assignee: Heilongjiang Bayi Agricultural University
Current assignee: Heilongjiang Bayi Agricultural University
Priority date: 2011-08-01
Filing date: 2011-08-01
Publication date: 2012-04-04
Anticipated expiration: 2021-08-01

Abstract

The utility model relates to a wave-type crushing sieve sheet, which comprises a sieve sheet, wherein sieve holes (1) are arranged on the sieve sheet; the sieve sheet is wave-shaped, and a plurality of bulges (2) are arranged on the sieve sheet; the sieve holes (1) are inclined holes with an angle of 15-30 degrees. The utility model adds a plurality of bulges on the common sieve sheet, the bulges can increase the sieving area of the crusher sieve sheet, increase the material sieving, increase the probability of the material being beaten and crushed by the hammer sheet and increase the beating capacity to the material; the protrusions increase the sieving area of the materials, so that the materials to be beaten can be discharged from the sieve more conveniently, over-crushing of the materials can be reduced, the crushing uniformity of the materials is improved, and the energy consumption is reduced; the sieve holes are set to be inclined holes of 15-30 degrees, so that the contact area between the sieve sheets and the material can be increased, and the uniformity of material particles is improved; the problem that the contact area of the current sieve sheet and the material is small and the uniformity of material particles is not good can be solved.

Description

A kind of wave grinding screen sheet

Technical field

The utility model relates to the sieve sheet that uses in the pulverizer, what be specifically related to is a kind of wave grinding screen sheet.

Background technology

Beater disintegrating machine is through hammer leaf material to be impacted, and through the screening effect of the sheet that sieves, big material is ground into little particle then.The sieve sheet is the important component part of beater disintegrating machine, in the process of ground cereal and feed etc., plays the effect of control comminuting matter granular size, also is one of parts of easy abrasion.Therefore, invent a kind of sieve sheet, can improve the contact area of sieve sheet and material, and the uniformity of raising comminuting matter particle is the problem that the present invention will solve.

Summary of the invention

The goal of the invention of the utility model is to the problems referred to above a kind of wave grinding screen sheet to be provided, and it is little to solve the contact area of sieving sheet and material at present, the problem that the uniformity of material particles is not good.

The utility model is realized through following technical scheme: a kind of wave grinding screen sheet, comprise the sieve sheet, and on the sieve sheet sieve aperture is arranged; Described sieve sheet is a waveform, on the sieve sheet a plurality of convexities is arranged; Sieve aperture is that angle is 15～30 ° a inclined hole.

Protruding is taper, bar shaped or arc.

Adopt the good effect of technique scheme: the utility model has increased a plurality of convexities on common sieve sheet; The protruding area that sieves of pulverizer sieve sheet that can make increases, and increases the sieve that of material, during the work of sieve sheet; Material in the pulverizing chamber and air move to boss under the impact of the hammer leaf that rotor mill drives; Owing to intercept and the effect of impact material is crashed to pieces, short grained material passes from sieve aperture, and oarse-grained material is then gone out the strike that receives hammer mills once more by bounce-back and is broken; The circulation layer that the air of motion forms is then partly owing to pass pulverizing chamber from tapered protrusion; Part is damaged the circulation layer in the pulverizing chamber because iris action speed reduces or changes direction, increases material and is hit broken probability and increase the ability that impacts to material by hammer leaf; Because the protruding area that sieves that increases material more helps being impacted the sieve that of material, so can reduce crossing of material and pulverize, and improves the material grinding uniformity, cuts down the consumption of energy; Sieve aperture is arranged to 15～30 ° inclined hole, can increases the contact area of sieve sheet and material, improve the uniformity of material particles.

Four, description of drawings

Fig. 1 is the overall structure sketch map of the utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the operation principle sketch map of the utility model.

Among the figure: 1 sieve aperture, 2 convexities, 3 hammer leaves.

Five, the specific embodiment: the utility model is described further below in conjunction with accompanying drawing:

Fig. 1 is the overall structure sketch map of the utility model, and Fig. 2 is the side view of Fig. 1, and in conjunction with Fig. 1, shown in Figure 2, a kind of wave grinding screen sheet comprises the sieve sheet, on the sieve sheet sieve aperture 1 is arranged.The sieve sheet is a waveform, has a plurality of protruding 2 on the sieve sheet.Protruding 2 effect mainly is the ability that impacts that increases hammer leaf 3, and little particle is spread out of from sieve aperture 1, and big particle rebounds and goes back to impact again pulverizing.Protruding 2 is that taper, bar shaped or arc can.Sieve aperture 1 is 15～30 ° a inclined hole for angle, makes that the material after pulverizing is not directly to pass sieve aperture 1, thereby has increased the area that sieves of material.

Fig. 3 is the operation principle sketch map of the utility model, and is as shown in the figure, and after the utility model was installed, the material feeding pulverizer inlet with to be pulverized got into the initial district that pulverizes then, impacts through driven by motor hammer leaf 3, and material is pulverized.In the process of pulverizing, little particle passes through the sieve aperture 1 of sieve sheet, and big particle is then by the bounce-back pulverizing of going back to impact again, and diminishing until granularity passes sieve aperture 1, and crushed work is accomplished.

Claims

1. a wave grinding screen sheet comprises the sieve sheet, on the sieve sheet sieve aperture (1) is arranged, and it is characterized in that: described sieve sheet is a waveform, on the sieve sheet a plurality of convexities (2) is arranged; Sieve aperture (1) is 15～30 ° inclined hole for angle.