CN102189032A

CN102189032A - Low-temperature negative-pressure airflow colliding crusher

Info

Publication number: CN102189032A
Application number: CN2011100493611A
Authority: CN
Inventors: 邱壬已
Original assignee: GUANGZHOU CHONGYU ENGINEERING MATERIALS SCIENT Co Ltd
Current assignee: GUANGZHOU CHONGYU ENGINEERING MATERIALS SCIENT Co Ltd; New Prismatic Enterprise Co Ltd
Priority date: 2011-02-27
Filing date: 2011-02-27
Publication date: 2011-09-21

Abstract

The invention provides a low-temperature negative-pressure airflow colliding crusher. A capsule in the crusher crushes particles into powder by means of wind pressure and a colliding wheel which rotates at a high speed; and a cooling water circulator is arranged outside the capsule to make the temperature of the capsule kept between 0 and 17 DEG C. The crusher is characterized in that: the capsule is in a low-temperature negative-pressure state by using a low-temperature high-pressure airflow; when the capsule is in the low-temperature negative-pressure state, the high-cohesion destructive power of the particles is easy to form, so a friction force is lowered, and the speed of particle motion is increased; and when the particles impact the colliding wheel which rotates at the high speed, a high impact force can be formed to effectively refine the particles instantly, so the aims of saving energy sources, improving crushing efficiency and prolonging the service life of the crusher are fulfilled.

Description

A kind of low-temperature negative-pressure airflow counter-collision pulverizer

Technical field

The present invention especially refers to a kind of low-temperature negative-pressure airflow counter-collision pulverizer for a kind of pulverizer is provided, and powder is placed the low-temperature negative-pressure environment, by and the bump of the collision of quick rotation wheel or powder between collision each other, make its fragmentation become attritive powder.

Background technology

Make the method for particle granular mainly contain two kinds by the physical mechanical mode, a kind of is to stress on static powder with two modules, make it be milled to powder by pressure, the method is called grinding, but may form empty mill because of the tongue and groove of mill surface greater than the powder diameter, thereby cause grinding efficiency to reduce; Another kind method is broken for making in the body of cabin the powder high-speed mobile and clashing into hard thing, and the multiple pulverizing machine that air-flow and cutter directly are whittled into powder that sees through is also arranged on the market, and the method can reach efficient that grinder is beyond one's reach and fineness; The present invention mainly is provided with at least one whole row's collision body in a cabin body, when powder is admitted in the body of cabin, the flat horizontal surface collision of the collision body that powder can rotate with cabin body high speed, this powder moment is fractured into and is powder, seeing through at a high speed simultaneously, the flat horizontal surface of the collision body of rotation provides a swirling eddy, make to be fractured into, and an externally positioned type powder concentrator and plug-in air blast are set on the body of cabin, in order to extract the powder that air and refinement are finished in the body of cabin out to attritive powder shifts out original impingement region; The shortcoming of technology all can produce loss for when powder high-speed impact flat horizontal surface at collision body and ring wall before, therefore can't improve the rotating speed of its cabin body again and strengthen crushing efficiency; Released a kind of jet mill afterwards, can see through and reduce powder quality and high velocity air, in a large amount of super fine of shortest time output, but the method can consume excessive electric energy and actual production capacity is limited, can't be applied to cheap a large amount of again products, as calcium carbonate, cement, bamboo wood, corn aggregate, cheap Chinese herbal medicine etc.

Therefore, the problems referred to above will be the where the shoe pinches that solves in this art person institute desire.

Summary of the invention

The present invention's inventor is because the described deficiency of above-mentioned prior art proposes a kind of low-temperature negative-pressure airflow counter-collision machine, and it mainly reaches following purpose:

Purpose one of the present invention is: the negative-pressure air-flow collider is by the environment of the low-temperature negative-pressure efficient with the broken powder of effective raising, its method is for being provided with collision body on the body internal ring wall of cabin, and the below is provided with air flow controller and can produces high pressure draught and make the cabin body be negative pressure state, the frictional force that makes powder diminish and and increase its movement velocity; When cabin body during in high speed rotating, collision wheel on its ring wall can clash into the powder in the body of cabin, and make powder in the body of cabin, form erratic bounce and run foul of each other, when this powder clashes into the collision body of quick rotation, will form powerful impact, but moment is the refinement powder effectively, only is compared to through impacting the broken powder of sheet, can save the energy and can also prolong facility service life.

Purpose two of the present invention is: low-temperature negative-pressure airflow counter-collision machine can make broken environment remain the state of a low temperature, in case material at high temperature is rotten and the growing of bacterium, its method is for being provided with a cooling-cycle device, can inject cold water makes the temperature maintenance of broken environment between 0 ℃ to 17 ℃, can make the raw material such as medicinal material can Yin Gaowen after grinding and go bad, again because of 17 ℃ of very slow for bacterial growth or do not grow critical points, so can reduce bacterial growth effectively by a cooling-cycle device.

Description of drawings

Fig. 1 low-temperature negative-pressure airflow counter-collision mill structure figure.

Fig. 2 low-temperature negative-pressure airflow counter-collision pulverizer operates illustration.

The irregular collision body structure chart of Fig. 3 low-temperature negative-pressure airflow counter-collision pulverizer.

Structure chart is carried in the collision of Fig. 4 low-temperature negative-pressure airflow counter-collision pulverizer helical form.

The main element symbol description

1 low-temperature negative-pressure airflow counter-collision machine

2 inlets

21 feedback outlets

3 air flow controllers

31 air supply openings

4 cabin bodies

41 high rotating speed motors

42 collision bodies

43 water conservancy diversion metal plates

5 control modules

6 cooling-cycle devices

61 discharge outlet

The specific embodiment

In order to reach the effect that reaches of above-mentioned projects, the specific embodiment is as follows:

Fig. 1 is a structure chart of the present invention, represents a kind of low-temperature negative-pressure airflow counter-collision pulverizer 1, forms powder by the high-speed impact powder, and it mainly includes:

One cabin body 4 is spaces of broken powder, and it has an inlet 2, an air supply opening 31 and a feedback outlet 21, and connects a high rotating speed motor 41, and its inner ring wall is provided with collision body 42, and this collision body is the projecting block of one group of zigzag; When cabin body 4 high speed rotating, its rotary speed can reach more than the 7200rpm, collision wheel 42 on its ring wall can clash into the powder in the cabin body 4, make powder form erratic bounce and run foul of each other, become attritive powder by a pressure official post powder fragmentation, can make general common powder (D＜50 μ m) fragmentation becoming powder (D＜5 μ m);

One air flow controller 3, be positioned at cabin body 4 under, and be provided with an air supply opening 31 in these cabin body 4 junctions, can control the speed and the flow of input air so that high pressure draught enters in the cabin body 4, make in the cabin body 4 to be in subnormal ambient;

One cooling-cycle device 6, be positioned at the next door of air flow controller 3, in this side one discharge outlet 61 is arranged, this cooling-cycle device 6 can inject cold water makes the temperature maintenance of cabin body 4 between 0 ℃ to 17 ℃, can make the Chinese medicines such as organic material such as genseng, the bark of eucommia, seven leaf courages can Yin Gaowen after grinding and go bad, again because of 17 ℃ of very slow for bacterial growth or do not grow critical points, so can reduce growing of bacterium effectively by a cooling-cycle device 6;

One water conservancy diversion metal plate 43 is to be arranged at cabin body 4 outsides, can produce interception gas wall and not meet the powder of size with screening, once more via feedback outlet 21 send back to carry out in the cabin body 4 once more broken;

One control module 5 links with water conservancy diversion metal plate 43 with air flow controller 3, cooling-cycle device 6, high rotating speed motor 41 respectively, by this size selection of control cabinet body 4 pressure and temperature, rotary speed and powder.

As Fig. 2, the present invention's low-temperature negative-pressure airflow counter-collision pulverizer 1 using method is as follows: when object collides, momentum is directly proportional with quality, and it is flat than being directly proportional with speed, but quality and the momentum of powder are all very little because of when head-on collision, so refinement effectively during the powder head-on collision, characteristic of the present invention is that the collision of generation negative-pressure air-flow and percussion quick rotation takes turns 42 under the low temperature, utilize air pressure official post momentum to increase with velocity squared, but refinement significant instant powder; See through water conservancy diversion metal plate 43 powder that big or small fineness is different more separately, collect the powder of target fineness, and the powder that will not reach the target fineness is sent once again in the cabin body 4 of subnormal ambient via feedback outlet 21 to; At first set the selection of dimension of internal pressure, cabin body 4 rotary speeies and powder of the cabin body 4 of low-temperature negative-pressure airflow counter-collision pulverizers 1 by control module 5; Air flow controller 3 makes high pressure draught enter in the cabin body 4 via air supply opening 31, make it be in subnormal ambient, during cabin body 4 high speed rotating, the powder that is positioned at cabin body 4 can collide for the first time with collision wheel 42 on cabin body 4 internal ring walls, make powder produce speed, after powder flicks from collision wheel 42, through colliding wheel 42 collisions again with on cabin body 4 internal ring walls for the second time after the straight line accelerated motion, direct fragmentation of powder meeting or continuation are moved along irregular direction, therefore the powder in all cabin bodies 4 can collide fragmentation each other repeatedly and become attritive powder with collision body 42 or with other powder, can save the energy and reach the purpose that prolongs 42 life-spans of collision body on body 4 internal ring walls of cabin;

Be arranged at the water conservancy diversion metal plate 43 between cabin body 4 outsides and the low-temperature negative-pressure airflow counter-collision machine 1, can produce interception gas wall does not meet size with screening powder, send back to via feedback outlet 21 once more and proceed fragmentation once more in the cabin body 4, become up to fragmentation till the fine-powder of target size size, this mode than externally positioned type powder concentrator after the sucking-off powder is selected size, again return in the cabin body 4 again and have more efficient, its powder is broken to be chosen all in the body of same cabin 4 with attritive powder again and finishes, and then can fill part and utilize the space.

Fig. 3, Fig. 4 is clear to point out a kind of low-temperature negative-pressure airflow counter-collision pulverizer 1, be positioned at cabin body 4 inner ring walls and be provided with collision body 42, system can be the projecting block irregular or arrangement of whirlpool shape, when rotating at a high speed with the powder in the bump cabin body 4, make powder form erratic bounce and run foul of each other, become attritive powder by a pressure official post powder fragmentation.

Claims

1. a low-temperature negative-pressure airflow counter-collision pulverizer places powder under low temperature and the subnormal ambient, forms powder to each other or with the high-speed impact of collision body by powder, and it mainly comprises:

One cabin body, this cabin body is the space of broken powder under the low temperature, this cabin body has at least one inlet, an air supply opening and a feedback outlet, and connect a high rotating speed motor, the inner ring wall of this cabin body is provided with collision body, and when height speed in cabin was rotated, the collision body on its ring wall can clash into the powder in the body of cabin, make powder form erratic bounce and run foul of each other, by pressure official post powder fragmentation a becoming attritive powder;

One air flow controller, this control device is positioned under the body of cabin, and being provided with an air supply opening with body junction, cabin, high pressure draught is entered in the body of cabin, makes the cabin intracorporeal space be in subnormal ambient;

One cooling-cycle device, this device is positioned at the next door of air flow controller, in this side one discharge outlet is arranged, and can carry out the water circulation to reduce the temperature of cabin body;

At least one water conservancy diversion metal plate, this refluence metal plate is arranged at the external side in cabin, can produce interception gas wall and not meet the powder of size with screening, once more via feedback outlet send back to carry out in the body of cabin once more broken;

One control module links with air flow controller, cooling-cycle device, high rotating speed motor and water conservancy diversion metal plate respectively, by this rotary speed of control cabinet body pressure and temperature, cabin body and the size selection of powder;

After powder is sent into the cabin body by inlet, this cabin body forms subnormal ambient because of the below stream pressure, when height speed in cabin was rotated, powder was powder because of the collision body on the bump ring wall or because of clashing into each other to be fractured into after the bounce-back, picks out the attritive powder of target size again by the water conservancy diversion metal plate.

2. low-temperature negative-pressure airflow counter-collision pulverizer as claimed in claim 1, the rotary speed of its middle deck body can reach more than the 7200rpm, can make general common powder (D＜50 μ m) fragmentation becoming powder (D＜5 μ m).

3. low-temperature negative-pressure airflow counter-collision pulverizer as claimed in claim 1, collision on its middle deck body internal ring wall wheel can be the projecting block that one group of irregular, zigzag or whirlpool shape are arranged.

4. the described low-temperature negative-pressure airflow counter-collision of claim 1 pulverizer, wherein cooling-cycle device can inject cold water and make the temperature maintenance of cabin body between 0 ℃ to 17 ℃.