CN210474149U - Fluidized bed fluid energy mill - Google Patents

Fluidized bed fluid energy mill Download PDF

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Publication number
CN210474149U
CN210474149U CN201920799354.5U CN201920799354U CN210474149U CN 210474149 U CN210474149 U CN 210474149U CN 201920799354 U CN201920799354 U CN 201920799354U CN 210474149 U CN210474149 U CN 210474149U
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grinding
area
flow channel
crushing
mill
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CN201920799354.5U
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Chinese (zh)
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吕小军
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Dongguan Dida Nano Materials Co ltd
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Dongguan Dida Nano Materials Co ltd
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Abstract

The utility model discloses a fluidized bed jet mill, which comprises a mill cavity, wherein a plurality of flow guide lining plates are arranged in the mill cavity, and the mill cavity is divided into a milling area, an ascending flow channel, a grading area, a backflow flow channel and a grinding area by the plurality of flow guide lining plates; the material is crushed in the crushing area, the crushed material flows into the classification area through an ascending flow channel for classification, fine powder of the crushed material is discharged through an outlet of the turbine type superfine classifier, material particles which cannot meet the requirement after being crushed can enter the grinding area through the backflow flow channel, the material particles are ground in the grinding area in a mechanical grinding mode, and the ground material flows back to the crushing area again for further crushing; by adding the mechanical grinding mode in the fluidized bed jet mill, ideal material particles can be obtained in a shorter time, the production efficiency is greatly reduced, and the economic benefit of enterprises is improved.

Description

Fluidized bed fluid energy mill
Technical Field
The utility model relates to a fluid energy mill field particularly, relates to a fluidized bed fluid energy mill.
Background
The fluidized bed type jet mill is one of collision type jet mills, and the working principle of the fluidized bed type jet mill is as follows: the compressed air is frozen, filtered and dried to form supersonic airflow through the nozzles, the supersonic airflow injects materials into the crushing chamber, and the accelerated materials are converged at the intersection points of the nozzles and undergo mutual collision, friction and shearing, so that the purpose of crushing the materials is achieved; fluidized bed jet mills have been favored in the milling industry because of their high product purity, good dispersibility, fine particle size, narrow particle size distribution, and the like.
The existing fluidized bed type jet mill is adopted, and when hard materials are encountered, ideal grinding effect can be achieved through multiple times of grinding; however, in the production process, if ideal material particles can be obtained through multiple times of crushing, the production time cost can be increased, the production efficiency is greatly reduced, and the economic benefit of enterprises is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, the utility model provides a fluidized bed fluid energy mill, the mode of mechanical grinding has been increased among the fluidized bed fluid energy mill, can obtain the material granule of ideal in shorter time, makes the efficiency greatly reduced of production, has improved the economic benefits of enterprise.
Correspondingly, the embodiment of the utility model provides a fluidized bed jet mill, fluidized bed jet mill includes the rubbing crusher cavity, be provided with a plurality of water conservancy diversion welts in the rubbing crusher cavity, a plurality of water conservancy diversion welts divide the rubbing crusher cavity into crushing district, ascending runner, classification district, backward flow runner and grinding district;
a plurality of feed inlets on the same horizontal plane are arranged in the crushing area, an airflow nozzle is arranged at one end of each feed inlet, and a feed hopper communicated with the outside is arranged on each feed inlet;
the ascending flow channel is communicated with the crushing area and the grading area, a turbine type superfine classifier is arranged in the grading area, and the turbine type superfine classifier is arranged right above the ascending flow channel;
the top end of the grinding area is communicated with the grading area through the backflow flow channel, and the bottom end of the grinding area is communicated with the crushing area; the grinding area is provided with a rotating shaft, and the rotating shaft is connected with at least one grinding paddle.
In an optional implementation manner, a crushing area groove is formed in the bottom of the crushing area, and a first airflow generating device is arranged in the crushing area groove;
the first air flow generating device and the ascending flow channel are on the same axis, and an air outlet end of the first air flow generating device faces the ascending flow channel.
In an optional embodiment, a grinding area groove is formed in the top of the grinding area, and a second airflow generating device is arranged in the grinding area groove;
the second airflow generation device and the grinding paddle are on the same axis, and the air outlet end of the second airflow generation device faces the grinding paddle.
In an optional implementation mode, a first filter screen is arranged on one side, close to the ascending flow channel, of the crushing zone groove, and a second filter screen is arranged on one side, close to the grinding paddle, of the grinding zone groove.
In an alternative embodiment, the grinding paddles are coaxial counter-rotating helical grinding paddles.
In an optional embodiment, the material of the flow guide lining plate is corundum.
In an alternative embodiment, the inner wall of the shredder chamber and the outer wall of the deflector liner are uniformly coated with an anti-stick coating.
The embodiment of the utility model provides a fluidized bed jet mill, fluidized bed jet mill includes the rubbing crusher cavity, be provided with a plurality of water conservancy diversion welts in the rubbing crusher cavity, a plurality of water conservancy diversion welts divide the rubbing crusher cavity into crushing district, runner, classification district, backward flow runner and grinding district; the materials are crushed in the crushing area, the crushed materials flow into the classification area through an ascending runner for classification, and fine powder of the crushed materials meeting the requirement is discharged through an outlet of the turbine type superfine classifier; the material particles which cannot meet the requirements after being crushed enter the grinding area through the backflow flow channel, the material particles are ground in the grinding area in a mechanical grinding mode, and the ground material flows back to the crushing area again for further crushing; by adding the mechanical grinding mode in the fluidized bed jet mill, ideal material particles can be obtained in a shorter time, the production efficiency is greatly reduced, and the economic benefit of enterprises is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a fluid bed jet mill according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
FIG. 1 is a schematic structural view of a fluid bed jet mill according to an embodiment of the present invention.
The embodiment of the utility model provides a fluidized bed fluid energy mill, fluidized bed fluid energy mill includes the rubbing crusher cavity the utility model provides an in, the mirror image is provided with first water conservancy diversion welt 11 and second water conservancy diversion welt 12 in the rubbing crusher cavity, first water conservancy diversion welt 11 and second water conservancy diversion welt 12 will the rubbing crusher cavity partition is for smashing district 2, ascending runner 3, classification district 4, first backward flow runner 51, second backward flow runner 52, first district 61 and the second of grinding and grinds district 62.
In the embodiment of the present invention, the material of the first and second flow guiding lining plates 11 and 12 is corundum, and the hardness of corundum is only inferior to that of diamond, and the first and second flow guiding lining plates 11 and 12 made of corundum have good wear resistance.
Specifically, a first feeding hole 21 and a second feeding hole 22 are arranged in the crushing area 2, and the first feeding hole 21 and the second feeding hole 22 are on the same horizontal plane.
One end of the first feeding hole 21 is provided with a first airflow nozzle 211, the first feeding hole 21 is provided with a first feeding hopper 212 communicated with the outside, the first feeding hopper 212 is funnel-shaped, and the material enters the first feeding hole 21 through the first feeding hopper 212 and is injected into the crushing area 2 under the driving of the first airflow nozzle 211.
The second feeding hole 22 is opposite to the first feeding hole 21, a second air flow nozzle 221 is arranged at one end of the first feeding hole 22, a second feeding hopper 222 communicated with the outside is arranged on the second feeding hole 22, the second feeding hopper 222 is in a funnel shape, and materials enter the second feeding hole 22 through the second feeding hopper 222 and are ejected into the crushing area 2 under the driving of the second air flow nozzle 221.
The materials are converged at the intersection point and are subjected to mutual collision, friction and shearing, so that the purpose of crushing the materials is achieved; an ascending flow channel 3 is formed between the first flow guide lining plate 11 and the second flow guide lining plate 12, the ascending flow channel 3 is communicated with the crushing area 2 and the grading area 4, and crushed materials flow into the grading area 4 through the ascending flow channel 3.
Particularly, in the embodiment of the present invention, a crushing area groove 23 is disposed at the bottom of the crushing area 2, a first airflow generating device 231 is disposed in the crushing area groove 23, the first airflow generating device 231 and the ascending flow channel 3 are on the same axis, the air outlet end of the first airflow generating device 231 faces the ascending flow channel 3, and the crushed material can be more quickly fed into the classifying area 4 for classification by the ascending airflow generated by the first airflow generating device 231, so as to improve the production efficiency; moreover, the first air flow generating device 231 is arranged in the groove 23 of the crushing area, so that the first air flow generating device 231 can be prevented from being impacted by materials, and the service life of the first air flow generating device 231 is prolonged; in addition, one side of the crushing area groove 23 close to the ascending flow channel 3 is provided with a first filter screen 232, the first filter screen 232 can prevent the material from entering the first airflow generating device 231, and the material is prevented from influencing the normal operation of the first airflow generating device 231.
Specifically, a turbine type ultrafine classifier 41 is arranged in the classification region 4, the turbine type ultrafine classifier 41 is arranged right above the ascending flow channel 3, and the crushed material is classified by the turbine type ultrafine classifier 41: the fine powder of the material which meets the requirement after being crushed is discharged through an outlet of the turbine type superfine classifier 41, and the coarse material particles enter the first return flow channel 51 or the second return flow channel 52 through the inner wall of the crusher chamber.
Wherein the top end of the first grinding zone 61 is communicated with the classification zone 4 through the first return flow channel 51, and a part of coarser material particles flows into the first grinding zone through the first return flow channel 51; the top end of the first grinding area 62 is communicated with the classification area 4 through the second backflow flow passage 52, and the other part of coarser material particles flows into the second grinding area through the second backflow flow passage 52, so that the material particles are divided into two parts for grinding, and the grinding efficiency and the grinding effect can be improved to a certain degree.
It should be noted that, since the structural compositions of the first polishing region 61 and the second polishing region 62 are the same, only the first polishing region 61 will be described in detail in the embodiment of the present invention.
Specifically, a first rotating shaft 611 is disposed in the first polishing region 61, the first rotating shaft 611 is disposed at an output end of the first motor 612, and the first rotating shaft 611 is driven by the first motor 612 to rotate.
Wherein, two grinding paddles 613 are connected to the first rotating shaft, and the grinding paddles 613 grind the coarse material particles; preferably, the grinding paddle is a coaxial contra-rotating spiral grinding paddle, two groups of spiral grinding paddles rotating in parallel are arranged on the coaxial contra-rotating spiral grinding paddle, but the two groups of spiral grinding paddles rotate in opposite angular speed directions, and the coaxial contra-rotating spiral grinding paddle can better grind coarser material particles and grind the coarser material particles.
The bottom end of the first grinding area 61 is communicated with the crushing area 2, and ground materials are sent back to the crushing area 2 to be crushed, so that the circular reciprocating motion is realized.
In particular, in the embodiment of the present invention, a grinding zone groove 614 is disposed at the top of the first grinding zone 61, a second airflow generating device 615 is disposed in the grinding zone groove 614, the second airflow generating device 615 is on the same axis with the grinding paddles 613, an air outlet end of the second airflow generating device 615 faces the grinding paddles 613, and a vertical downward airflow is generated by the second airflow generating device 615, so that on one hand, coarser materials can be blown into the grinding paddles 613 more quickly for grinding, and on the other hand, ground materials can be blown back to the grinding zone 2 more quickly, thereby improving the production efficiency; moreover, the second air flow generating device 615 is arranged in the crushing area groove 614, so that the second air flow generating device 615 is prevented from being impacted by materials, and the service life of the second air flow generating device 615 is prolonged; in addition, a second filter screen 616 is disposed on one side of the crushing region groove 614 close to the grinding paddle 613, and the second filter screen 616 can prevent the material from entering the second airflow generation device 615, so as to prevent the material from affecting the normal operation of the second airflow generation device 615.
Additionally, in the embodiment of the present invention, the inner wall of the pulverizer chamber the outer walls of the first diversion liner plate 11 and the second diversion liner plate 12 are uniformly coated with the anti-sticking coating, which can effectively prevent the material from sticking to the inner wall of the pulverizer chamber the outer walls of the first diversion liner plate 11 and the second diversion liner plate 12.
The embodiment of the utility model provides a fluidized bed jet mill, fluidized bed jet mill includes the rubbing crusher cavity, be provided with a plurality of water conservancy diversion welts in the rubbing crusher cavity, a plurality of water conservancy diversion welts divide the rubbing crusher cavity into crushing district 2, runner 3, classifying district 4, backward flow runner and grinding district; wherein, the material is crushed in the crushing area 2, the crushed material flows into the grading area 4 through the ascending runner 3 for grading, and the fine powder of the crushed material which meets the requirement is discharged through the outlet of the turbine-type superfine classifier 41; the material particles which cannot meet the requirements after being crushed enter the grinding area through the backflow flow channel, the material particles are ground in the grinding area in a mechanical grinding mode, and the ground material flows back to the crushing area 2 again for further crushing; by adding the mechanical grinding mode in the fluidized bed jet mill, ideal material particles can be obtained in a shorter time, the production efficiency is greatly reduced, and the economic benefit of enterprises is improved.
In addition, the fluidized bed jet mill provided by the embodiment of the present invention is described in detail above, and the principle and the implementation mode of the present invention should be explained by using specific examples, and the description of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (7)

1. A fluidized bed jet mill is characterized by comprising a mill cavity, wherein a plurality of flow guide lining plates are arranged in the mill cavity, and divide the mill cavity into a milling area, an ascending flow channel, a grading area, a backflow flow channel and a grinding area;
a plurality of feed inlets on the same horizontal plane are arranged in the crushing area, an airflow nozzle is arranged at one end of each feed inlet, and a feed hopper communicated with the outside is arranged on each feed inlet;
the ascending flow channel is communicated with the crushing area and the grading area, a turbine type superfine classifier is arranged in the grading area, and the turbine type superfine classifier is arranged right above the ascending flow channel;
the top end of the grinding area is communicated with the grading area through the backflow flow channel, and the bottom end of the grinding area is communicated with the crushing area; the grinding area is provided with a rotating shaft, and the rotating shaft is connected with at least one grinding paddle.
2. The fluid bed jet mill of claim 1, wherein the bottom of the pulverizing zone is provided with a pulverizing zone groove, and the pulverizing zone groove is provided with a first air flow generating device;
the first air flow generating device and the ascending flow channel are on the same axis, and an air outlet end of the first air flow generating device faces the ascending flow channel.
3. The fluid bed jet mill of claim 1, wherein the grinding zone is provided with a grinding zone recess at the top thereof, and a second air flow generating device is provided in the grinding zone recess;
the second airflow generation device and the grinding paddle are on the same axis, and the air outlet end of the second airflow generation device faces the grinding paddle.
4. The fluid bed air flow crusher as claimed in any one of claims 2 or 3, wherein a first screen is provided on a side of the crushing zone recess adjacent to the ascending flow path, and a second screen is provided on a side of the grinding zone recess adjacent to the grinding paddle.
5. The fluid bed jet mill of claim 4, wherein the grinding paddles are coaxial counter-rotating helical grinding paddles.
6. The fluid bed jet mill of claim 1, wherein the flow guiding lining plate is made of corundum.
7. The fluid bed jet mill of claim 1, wherein the inner wall of the mill chamber and the outer wall of the deflector liner are uniformly coated with an anti-stick coating.
CN201920799354.5U 2019-05-29 2019-05-29 Fluidized bed fluid energy mill Active CN210474149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920799354.5U CN210474149U (en) 2019-05-29 2019-05-29 Fluidized bed fluid energy mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920799354.5U CN210474149U (en) 2019-05-29 2019-05-29 Fluidized bed fluid energy mill

Publications (1)

Publication Number Publication Date
CN210474149U true CN210474149U (en) 2020-05-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920799354.5U Active CN210474149U (en) 2019-05-29 2019-05-29 Fluidized bed fluid energy mill

Country Status (1)

Country Link
CN (1) CN210474149U (en)

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