CN214717300U

CN214717300U - Air flow crusher

Info

Publication number: CN214717300U
Application number: CN202120484270.XU
Authority: CN
Inventors: 王庆涛; 白明月; 白玥; 王洪伟
Original assignee: Hebei Saifeng Biotechnology Co ltd
Current assignee: Hebei Saifeng Biotechnology Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-11-16
Anticipated expiration: 2031-03-08

Abstract

The utility model discloses a jet mill, which comprises an air compressor, a feeding device, a crushing device and a separating device, wherein the feeding device comprises a hopper and a feeding pipe, the crushing device comprises a crushing cavity, more than one Laval nozzle is uniformly distributed in the crushing cavity, the outlet of the feeding pipe is arranged in the crushing cavity, and the emergent airflow of the feeding pipe and the emergent airflow of each Laval nozzle are intersected at the same point in the crushing cavity; the crushing device is communicated with the separation device through a guide pipe; the separating device comprises a separating cavity, a material collecting bin is connected with the separating cavity, and a dust removing device is arranged at the tail end of the separating cavity. This fluid energy mill has the beneficial effect that can promote the quality of smashing the back material, work efficiency is high and environmental protection more.

Description

Air flow crusher

Technical Field

The utility model relates to a rubbing crusher technical field, concretely relates to fluid energy mill.

Background

The air flow crusher is generally used for crushing micro powder and ultra-micro powder, and the working principle of the existing air flow crusher is that compressed air is injected into a crushing cavity pre-filled with materials at a high speed through a nozzle, the materials are repeatedly collided, rubbed and sheared at the intersection point of a plurality of high-pressure air flows to be crushed, the crushed materials move to a grading device, the coarse and fine materials are separated, and fine particles meeting the particle size requirement enter a collecting device through the grading device to be collected. The jet mill in the prior art has the defects of low quality of the crushed material, low working efficiency and unfriendliness to the environment.

Disclosure of Invention

For overcoming the above-mentioned not enough among the prior art, the utility model provides a can promote the quality of smashing the back material, work efficiency height and the jet mill of environmental protection more.

The technical scheme of the utility model is that:

a jet mill comprises an air compressor, a feeding device, a crushing device and a separating device, wherein the feeding device comprises a hopper and a feeding pipe, and the hopper is communicated with the feeding pipe;

the crushing device comprises a crushing cavity, at least one Laval nozzle is arranged in the crushing cavity, the Laval nozzles are uniformly distributed along the crushing cavity, an outlet of the feeding pipe is arranged in the crushing cavity, and emergent airflow of the feeding pipe and emergent airflow of the Laval nozzles are intersected at the same point in the crushing cavity;

the crushing device is communicated with the separation device through a guide pipe; the separation device is used for separating crushed materials and comprises a separation cavity, a separation net is arranged in the separation cavity, a material collection bin is connected with the separation cavity and used for collecting materials intercepted at the separation net, and a dust removal device is arranged at the tail end of the separation cavity;

the air compressor machine is used for inlet pipe, each laval nozzle provide high-pressure draught.

Preferably, a drying device is arranged at an air inlet of the air compressor, and the drying device is used for drying air.

In any of the above schemes, preferably, an air outlet of the air compressor is provided with an oil-gas separation device, and the oil-gas separation device is used for separating lubricating oil mixed in the compressed air.

In any of the above schemes, preferably, the crushing cavity and the separation cavity are both provided with observation holes, and tempered glass is arranged at the observation holes.

In any of the above schemes, preferably, the duct is provided with a fan, and the bottom of the crushing cavity is provided with an air valve.

In any of the above solutions, it is preferable that the separation net is disposed perpendicular to a horizontal plane.

In any of the above solutions, it is preferable that a vibration device is provided at the separation net.

In any one of the above schemes, preferably, the separation net includes first separation net, second separation net, first separation net, second separation net in the separation intracavity sets up from top to bottom, first separation net is used for separating the great material of particle size, the second separation net is used for separating the material of target particle size.

In any of the above schemes, preferably, the crushing cavity and the separation cavity are provided with access ports.

In any of the above schemes, preferably, the dust removal mode of the dust removal device at the tail end of the separation cavity is cloth bag dust removal.

The utility model discloses a fluid energy mill has the quality that can promote the material after smashing, the beneficial effect of high just environmental protection more of work efficiency.

Drawings

Fig. 1 is a schematic view of an embodiment of the jet mill of the present invention.

Fig. 2 is a schematic cross-sectional view of the embodiment of the jet mill of fig. 1 according to the present invention.

The reference numbers in the figures illustrate:

101-a feed pipe; 102-a hopper; 103-a viewing aperture; 104-a catheter; 105-a fan; 106-a separation chamber; 107-material collection bin; 108-a crushing chamber; 109-gas separation valve; 201-a laval nozzle; 202 a first separation mesh; 203-a second separation net; 205-a vibrating device; 206-air valve.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientation or positional relationship is based on that shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1:

a jet mill is shown in fig. 1 and fig. 2, and comprises an air compressor, a feeding device, a crushing device and a separating device, wherein the feeding device comprises a hopper 102 and a feeding pipe 101, and the hopper 102 is communicated with the feeding pipe 101; the crushing device comprises a crushing cavity 108, at least one Laval nozzle 201 is arranged in the crushing cavity 108, the Laval nozzles 201 are uniformly distributed along the crushing cavity 108, the outlet of the feeding pipe 101 is arranged in the crushing cavity 108, and the emergent airflow of the feeding pipe 101 and the emergent airflow of the Laval nozzles 201 are intersected at the same point in the crushing cavity 108; the crushing device is communicated with the separation device through a conduit 104; the separating device is used for separating the crushed materials, the separating device comprises a separating cavity 106, a separating net is arranged in the separating cavity 106, the separating cavity 106 is connected with a material collecting bin 107, the material collecting bin 107 is used for collecting the materials intercepted at the separating net, and a dust removing device is arranged at the tail end of the separating cavity 106. The air compressor is used for providing high-pressure airflow for the feeding pipe 101 and the Laval nozzles 201.

In this embodiment, the feeding device is used for feeding the material into the crushing chamber 108, and in particular, the hopper 102 is used for holding the material, and the air compressor provides high-speed air flow for the feeding pipe 101, so that the material is sucked into the feeding pipe 101 according to the bernoulli principle and is brought into the crushing chamber 108 by the high-speed air flow, thereby completing the feeding.

At least one Laval nozzle 201 is arranged in the crushing cavity 108, the outlet of the feeding pipe 101 is arranged in the crushing cavity 108, and the emergent airflow of the feeding pipe 101 and the emergent airflow of each Laval nozzle 201 are intersected at the same point in the crushing cavity 108. After the materials enter the crushing cavity 108, the materials are repeatedly collided, rubbed and sheared at the intersection point of a plurality of high-pressure air flows generated by the Laval nozzle 201 to be crushed into fine particles. In order to ensure that the high-pressure airflow pressure at each laval nozzle 201 is consistent, an air distribution valve 109 may be provided, the air distribution valve 109 is annular, and compressed air generated by the air compressor is distributed by the air distribution valve 109 to ensure that the high-pressure airflow pressure at each laval nozzle 201 is consistent.

The crushed materials enter the separating device through the guide pipe 104 along with the airflow, the separating device comprises a separating cavity 106, a separating net is arranged in the separating cavity 106, the airflow mixed with the crushed materials flows through the separating net, the materials with a certain volume are intercepted at the separating net, and the materials intercepted at the separating net gradually increase and finally fall into the material collecting bin 107, so that the crushed materials are collected. The dust passing through the separation screen is collected by a dust removing device provided at the rear end of the separation chamber 106, thereby preventing pollution to the environment.

In order to prevent the airflow generated by each laval nozzle 201 from being too small and causing the crushed material to deposit at the bottom of the crushing chamber 108, the duct 104 is provided with a fan 105, and the bottom of the separation chamber 106 is provided with an air valve 206. The fan 105 increases the flow of air out of the crushing chamber 108 so that crushed material can be efficiently brought into the separating apparatus via the duct 104.

In this embodiment, the air inlet department of air compressor machine is provided with drying device, drying device is used for drying the air. The air effectively gets rid of the vapor that dopes in the air after drying device is dry, prevents that vapor from being adsorbed by the material in crushing process, has promoted the quality of smashing the back material.

In this embodiment, air outlet department of air compressor machine is provided with oil-gas separation device, oil-gas separation device is arranged in separating the lubricating oil of sneaking into in the compressed air. In the prior art, the principle of generating high-pressure air is that the air compressor is a reciprocating piston type, and it can be understood that a small amount of lubricating oil is inevitably brought into compressed air when the piston compresses the air. Especially, the separation device can effectively separate the lubricating oil doped in the high-pressure air, prevent the lubricating oil from being mixed into the material, and further improve the quality of the crushed material.

In the embodiment, the crushing cavity 108 and the separation cavity 106 are both provided with the observation hole 103, and the observation hole 103 is provided with toughened glass. The design is convenient for workers to observe the working conditions in the crushing cavity 108 and the separation cavity 106, and when problems occur, the problems can be timely treated.

In this embodiment, the separation screen is arranged perpendicular to the horizontal plane. When the crushed material retained by the separation mesh reaches a certain amount, it is convenient to drop from the separation mesh into the material collection bin 107 under the action of gravity. In order to enhance the separation effect, a vibration device 205 can be arranged at the separation net.

In the present embodiment, the crushing chamber 108 and the separation chamber 106 are provided with access ports. When the staff observes conditions such as damage of the laval nozzle 201, blockage of the feeding pipe 101, blockage of the separation net and the like through the observation hole 103, the access hole can be opened to repair the encountered problems.

Example 2:

the main components of the jet mill used in this embodiment are the same as those of embodiment 1, and unlike embodiment 1, the first separation net 202 and the second separation net 203 are provided in this embodiment, and it can be understood that the first separation net 202 is used to collect incompletely crushed and large-sized materials. The meshes of the second separation net 203 are arranged according to the requirements of actual production, and materials with nearly consistent particle sizes are finally collected at the material collection bin 107 at the bottom of the second separation net 203 through two layers of filtration.

The above-mentioned embodiments are only specific embodiments of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is within the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered in the protection scope of the present invention.

Claims

1. A jet mill comprises an air compressor, a feeding device, a crushing device and a separating device, and is characterized in that the feeding device comprises a hopper (102) and a feeding pipe (101), and the hopper (102) is communicated with the feeding pipe (101);

the crushing device comprises a crushing cavity (108), at least one Laval nozzle (201) is arranged in the crushing cavity (108), each Laval nozzle (201) is uniformly distributed along the crushing cavity (108), an outlet of the feeding pipe (101) is arranged in the crushing cavity (108), and emergent airflow of the feeding pipe (101) and emergent airflow of each Laval nozzle (201) are intersected at the same point in the crushing cavity (108);

the crushing device is communicated with the separation device through a conduit (104); the separation device is used for separating crushed materials and comprises a separation cavity (106), a separation net is arranged in the separation cavity (106), a material collection bin (107) is connected with the separation cavity (106), the material collection bin (107) is used for collecting materials intercepted at the separation net, and a dust removal device is arranged at the tail end of the separation cavity (106);

the air compressor machine is used for providing high-pressure air current for inlet pipe (101), each Laval nozzle (201).

2. The jet mill as claimed in claim 1, wherein a drying device is provided at an air inlet of the air compressor, the drying device being for drying air.

3. The jet mill as claimed in claim 1, wherein an air-oil separating device for separating lubricating oil mixed in the compressed air is provided at an air outlet of the air compressor.

4. The jet mill according to claim 1, characterized in that the milling chamber (108) and the separation chamber (106) are provided with observation holes (103), and the observation holes (103) are provided with toughened glass.

5. A jet mill according to claim 1, characterized in that a fan (105) is arranged at the conduit (104) and an air valve (206) is arranged at the bottom of the milling chamber.

6. A jet mill as claimed in claim 1, characterized in that the separating screen is arranged vertically to the horizontal plane.

7. A jet mill according to claim 6, characterized in that a vibration device (205) is arranged at the separation wire.

8. A jet mill according to claim 6, characterized in that the separation mesh comprises a first separation mesh (202) and a second separation mesh (203), the first separation mesh (202) and the second separation mesh (203) are arranged from top to bottom in the separation chamber (106), the first separation mesh (202) is used for separating the material with larger particle size, and the second separation mesh (203) is used for separating the material with target particle size.

9. A jet mill according to claim 1, characterized in that access openings are provided at both the milling chamber (108) and the separation chamber (106).

10. A jet mill according to claim 1, characterized in that the dust removal means at the end of the separation chamber (106) is arranged to remove dust in the form of a cloth bag.