CN203400753U

CN203400753U - Pulse sieve cleaning grinder

Info

Publication number: CN203400753U
Application number: CN201320438263.1U
Authority: CN
Inventors: 蒋德桥; 程洪波; 曾国良
Original assignee: Yangzhou Ke Run Moral Machinery Co Ltd
Current assignee: Yangzhou Ke Run Moral Machinery Co Ltd
Priority date: 2013-07-23
Filing date: 2013-07-23
Publication date: 2014-01-22
Anticipated expiration: 2023-07-23

Abstract

The utility model discloses a pulse sieve cleaning grinder, and belongs to the technical field of feed machinery and the pulse sieve cleaning grinder is used for solving the problem of blockage of openings of sieve pieces. The pulse sieve cleaning grinder comprises a rotor with hammers and a grinding chamber enveloped outside the rotor, wherein the grinding chamber comprises a plurality of sieve pieces and sieve piece supports for fixing the sieve pieces; a feeding hole is formed in the upper part of the grinding chamber; gaps are reserved between the hammers and the sieve pieces; discharge cavities are formed between the outer circumferences of the sieve pieces and the shell of the grinder; discharge holes are formed in the lower ends of the discharge cavities; spray pipes are arranged in the discharge cavities; the axes of the spray pipes are parallel to that of the rotor; one ends of the spray pipes are closed and the other ends of the spray pipes are extended out of the grinder and are communicated with compressed air sources; a plurality of spray orifices are uniformly formed in the spray pipes along the length direction. The pulse sieve cleaning grinder has the beneficial effects that the air pressures of the discharge cavities are increased at the moment that compressed air is intermittently sprayed, so that the volume of air passing through the sieve piece orifices is reduced and the air is blown back and the materials adhered to the sieve pores are loosened and brought away by wind through momentary variation of the wind direction, thus achieving the aim of cleaning the materials in the sieve piece pores.

Description

A kind of pulse cleaning pulverizer

Technical field

The utility model relates to the pulverizer in a kind of feed manufacturing machine field, particularly a kind of pulse cleaning pulverizer.

Background technology

At present, feed is pulverized to the main pulverizer that adopts of processing, existing pulverizer comprises grinding rotor, rotor is arranged on rotor main shaft, main shaft two ends are supported in frame by bearing block, hammer frame plate is installed on main shaft at regular intervals, on hammer frame plate, be evenly distributed with a plurality of pin shaft holes, bearing pin is installed in pin shaft hole, hammer leaf is arranged on bearing pin and by spacer and is spaced from each other, rotor periphery is provided with the sieve of the densely covered mesh that surrounds rotor, and sieve is surrounded as the enclosure space formation pulverizing chamber that is greater than root diameter.Between the excircle of sieve and the housing of pulverizer, form discharging chamber, the lower end in discharging chamber is provided with discharging opening, and powder is discharged and entered in the auger of pulverizer below by discharging opening.

During pulverizer work, main shaft drives hammer frame plate to drive the hammer leaf high speed rotating being contained on bearing pin, hammer leaf centrifugal development simultaneously.Material enters pulverizing chamber through feeding equipment from the charging aperture at pulverizer top, the decrease speed of material is lower, when entering the fracture area of pulverizing chamber, contact with hammer leaf, the linear velocity of hammer leaf is higher, it is broken because both huge speed differences cause material to overwhelm, then, material flies to sieve under the effect of centrifugal force, again bump with sieve, by bulky grain, become granule, pulverized small particles material, through the sieve aperture of sieve, under the effect of gravity and auxiliary air draft system, is discharged from discharging opening.

While there is the raw materials such as flour or oiliness, ultra micro material in material, material can be bonded in sieve hole, and sieve hole is diminished, by sieve hole material out, will reduce, and yield reducation, in sieve, temperature of charge rises, and repeating to pulverize increases, and specific yield energy consumption raises.

Utility model content

The purpose of this utility model is, overcomes problems of the prior art, and a kind of pulse cleaning pulverizer is provided, and can effectively dredge the eyelet of sieve, improves and pulverizes and discharging efficiency.

For solving above technical problem, a kind of pulse cleaning pulverizer provided by the utility model, comprise the rotor and the pulverizing chamber of envelope outside rotor that are provided with hammer leaf, described pulverizing chamber by multi-disc sieve and fixedly the sieve support of sieve form, pulverizing chamber top is provided with charging aperture, between described hammer leaf and described sieve, leave gap, between the excircle of described sieve and the housing of pulverizer, form discharging chamber, the lower end in described discharging chamber is provided with discharging opening, described discharging is provided with jet pipe in chamber, the axis of described jet pipe is parallel to rotor axis, one end sealing of described jet pipe, the other end stretches out outside pulverizer and is communicated with compressed air gas source, on described jet pipe, be evenly provided with along its length a plurality of spray orifices.

With respect to prior art, the utility model has been obtained following beneficial effect: the compressed air that passes into high pressure to jet pipe intermediate gap, the moment that compressed air sprays from each spray orifice has increased the air pressure inside in discharging chamber, the air quantity passing through in sieve hole is reduced and blowback, wind direction momentary variation fluffs the material being bonded in sieve aperture taken away by wind, reach material object in cleaning sieve hole, after thereby increase is blown into gas, material is by the output in sieve hole, the temperature of pulverizing chamber is minimized, repeat to pulverize and reduce, reach the object that reduces specific yield energy consumption.

As preferred version of the present utility model, the injection direction of described spray orifice points to sieve.

As preferred version of the present utility model, described jet pipe can rotate around the axis of self.Rotable nozzle can regulate spray orifice with respect to the spray angle of sieve.

Accompanying drawing explanation

Fig. 1 is the front view of the utility model pulse cleaning pulverizer.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is along the cutaway view of A-A in Fig. 1.

In figure: 1. charging aperture; 2. rotor; 2a. hammer leaf; 3. sieve; 4. groove; 5. jet pipe; 6. impulse electromagnetic valve; 7. compressed air hose; 8. air accumulator.

The specific embodiment

As shown in Figure 1 to Figure 3, pulse cleaning pulverizer of the present utility model comprises rotor 2 and the pulverizing chamber of envelope outside rotor that is provided with hammer leaf 2a, pulverizing chamber by multi-disc sieve 3 and fixedly the sieve support of sieve 3 form, pulverizing chamber top is provided with charging aperture 1, between hammer leaf 2a and sieve 3, leave gap, the bottom of pulverizing chamber is provided with the groove 4 to pulverizing chamber inside opening, between the excircle of sieve 3 and the housing of pulverizer, form discharging chamber, the lower end in discharging chamber is provided with discharging opening, in discharging chamber, be provided with jet pipe 5, the axis of jet pipe 5 is parallel to rotor axis, one end of jet pipe 5 is stretched out pulverizing chamber and by compressed air hose 7, is communicated with air accumulator 8 or other compressed air gas source outward, on jet pipe 5, be evenly provided with along its length spray orifice, the injection direction of spray orifice points to sieve.Jet pipe 5 can be connected by swivel joint with compressed air hose 7, makes jet pipe 5 can rotate to regulate around self axis the spray angle of spray orifice, jet pipe 5 can take cylinder or other form to drive, and spray orifice can be installed nozzle.The porch of jet pipe 5 is provided with impulse electromagnetic valve 6 to control the break-make of air-flow in jet pipe.

In the course of work, material enters behind pulverizing chamber fracture area, be subject to high speed rotary hammer leaf 2a strike and break, then, material flies to sieve 3 under the effect of centrifugal force, again bumps and further broken with sieve 3; When the groove 4 through pulverizing chamber bottom, material and groove 4 bump, and make the sudden change of material flow direction, and the circulation layer of material is destroyed.To jet pipe 5 intermediate gaps, pass into the compressed air of high pressure, the moment that compressed air sprays from each spray orifice has increased the air pressure inside in discharging chamber, the air quantity passing through in the sieve aperture of sieve 3 is reduced and blowback, wind direction momentary variation fluffs the material being bonded in sieve aperture taken away by wind, reaches material object in cleaning sieve hole.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims

1. a pulse cleaning pulverizer, comprise the rotor and the pulverizing chamber of envelope outside rotor that are provided with hammer leaf, described pulverizing chamber by multi-disc sieve and fixedly the sieve support of sieve form, pulverizing chamber top is provided with charging aperture, between described hammer leaf and described sieve, leave gap, between the excircle of described sieve and the housing of pulverizer, form discharging chamber, the lower end in described discharging chamber is provided with discharging opening, it is characterized in that: described discharging is provided with jet pipe in chamber, the axis of described jet pipe is parallel to rotor axis, one end sealing of described jet pipe, the other end stretches out outside pulverizer and is communicated with compressed air gas source, on described jet pipe, be evenly provided with along its length a plurality of spray orifices.

2. a kind of pulse cleaning pulverizer according to claim 1, is characterized in that: the injection direction of described spray orifice points to sieve.

3. a kind of pulse cleaning pulverizer according to claim 1 and 2, is characterized in that: described jet pipe can rotate around the axis of self.