Jet mill

Abstract

The utility model relates to the technical field of jet mills, in particular to a jet mill. According to the technical scheme, the jet mill comprises a jet mill body, an air inlet pipe, an air outlet pipe, a supporting seat and a feeding pipe are arranged on the jet mill body, a feeding hopper is installed on the feeding pipe, an intercepting net is arranged at the bottom end of the air outlet pipe, the jet mill further comprises an inner ring, the inner ring is concentrically arranged in the jet mill body, and the supporting seat is arranged on the inner ring. The inner ring is fixedly connected with the jet mill body, and a plurality of inclined air inlet holes distributed in an array are formed in the inner ring. Through mutual cooperation of the rolling mechanism and the material throwing mechanism, in the process that the connecting plate rotates under the influence of airflow, the rolling roller rotationally connected with the bottom of one end of the connecting plate can roll materials falling on the lower surface of the inner wall of the airflow crusher body to crush the materials, another crushing mode except airflow crushing is provided, and the crushing efficiency is improved. And the material crushing effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of air flow pulverizers, in particular to an air flow pulverizer. Background Art

[0002] The air flow mill uses a complete set of air flow circulation equipment. It accelerates the compressed air into a supersonic airflow through a Laval nozzle and then injects it into the crushing area to fluidize the material, allowing the materials to collide continuously and quickly, thereby achieving a crushing effect. It has the characteristics of simple operation and a wide range of applications.

[0003] When traditional air flow mills pulverize materials, the pulverizing method is too simple, which makes some larger materials easily deposited at the bottom of the mill under the action of gravity, resulting in the problem of reduced pulverizing effect of the air flow on the materials. Summary of the invention

[0004] The purpose of the utility model is to propose an air flow pulverizer to address the problem that the traditional air flow pulverizer in the background technology has too single a pulverizing method when pulverizing materials, so that some large-volume materials are easily deposited at the bottom of the pulverizer under the action of gravity, resulting in reduced pulverizing effect of the air flow on the materials.

[0005] The technical solution of the utility model is as follows: an air flow pulverizer comprises an air flow pulverizer body, the air flow pulverizer body is provided with an air inlet pipe, an air outlet pipe, a support seat and a feed pipe, the feed pipe is installed with a feed hopper, the bottom end of the air outlet pipe is provided with an interception net, and also comprises an inner ring, the inner ring is concentrically arranged inside the air flow pulverizer body and fixedly connected with the air flow pulverizer body, the inner ring is provided with a plurality of inclined air inlet holes distributed in an array, a crushing mechanism for assisting in further crushing of materials is arranged at the center of the inner ring; a throwing mechanism for re-throwing up sticky materials is installed on the crushing mechanism.

[0006] Preferably, the crushing mechanism includes a fixed shaft, which is rotatably connected to the center point of the bottom of the inner wall of the air flow mill body, and a rotating sleeve is rotatably sleeved on the fixed shaft, and a connecting plate is clamped and fixed on the rotating sleeve, and the connecting plates are located at the bottom of both sides of the fixed shaft and are respectively equipped with a crushing roller and a shovel plate, the crushing roller is rotatably connected to the connecting plate, and the lower surface of the crushing roller is slidably connected to the lower surface of the inner wall of the air flow mill body.

[0007] Preferably, the throwing mechanism includes a magnetic strip, one end of which is fixedly connected to a side of a fixed shaft near the top, a plurality of grooves are provided on the lower surface of the inner wall of the airflow pulverizer body, and a magnetic metal block is slidably connected in the plurality of grooves, the top upper surface of the magnetic metal block and the lower surface of the inner wall of the airflow pulverizer body are in the same horizontal plane, and a spring is fixedly connected between the bottom end of the magnetic metal block and the inner wall of the groove.

[0008] Preferably, the maximum stretching distance of the spring is smaller than the rising distance of the magnetic metal block.

[0009] Preferably, one side of the scraping plate is arranged as an inclined surface, and the bottom of the scraping plate is closely connected to the lower surface of the inner wall of the air flow mill body.

[0010] Preferably, a brush plate for cleaning the interception net at the bottom of the air intake pipe is installed at the top center of the connecting plate, and the top of the brush plate is fitted and connected to the interception net.

[0011] Preferably, a filter screen is installed at one end of each of the plurality of inclined air inlet holes located within the inner ring.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] Through the cooperation between the crushing mechanism and the throwing mechanism, when the connecting plate is affected by the airflow and rotates, the crushing roller connected to the bottom of one end of the connecting plate will crush the material falling on the lower surface of the inner wall of the airflow mill body to break it, thereby providing another crushing method besides airflow crushing and enhancing the crushing effect of the material. In addition, the shovel plate installed at the bottom of the other end of the connecting plate will scoop up the crushed material, so that it can be quickly rolled up again by the airflow for crushing, and the magnetic strip will attract the passing magnetic metal blocks in the process of following the rotation of the connecting plate, so that the material falling on the bottom is thrown up again to be crushed by the airflow. The above actions increase the crushing method, improve the crushing effect, and then improve the crushing efficiency, and do not require electric drive, and also achieve the effect of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Provide a structural schematic diagram of the utility model;

[0015] Figure 2 A schematic diagram of the structure of the air flow pulverizer in the utility model is given;

[0016] Figure 3 A three-dimensional structural schematic diagram of the crushing mechanism in the utility model is given;

[0017] Figure 4 A partial structural sectional schematic diagram of the throwing mechanism in the utility model is given;

[0018] Figure 5 A partial structural sectional schematic diagram of the air outlet pipe and the interception net in the utility model is given.

[0019] Reference numerals: 1. air flow mill body;

[0020] 2. Crushing mechanism; 201. Fixed shaft; 202. Rotating sleeve; 203. Connecting plate; 204. Crushing roller; 205. Shoveling plate;

[0021] 3. Material throwing mechanism; 301. Magnetic strip; 302. Magnetic metal block; 303. Spring;

[0022] 4. Brush plate; 5. Inner ring; 6. Filter screen; 7. Inlet pipe; 8. Outlet pipe; 9. Feed pipe; 10. Feed hopper; 11. Support seat; 12. Interception net. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1-5 As shown, the utility model proposes an air flow pulverizer, including an air flow pulverizer body 1, on which an air inlet pipe 7, an air outlet pipe 8, a support seat 11 and a feed pipe 9 are arranged, on which a feed hopper 10 is installed, and at the bottom end of the air outlet pipe 8, an interception net 12 is arranged, and also includes an inner ring 5, which is concentrically arranged inside the air flow pulverizer body 1 and fixedly connected to the air flow pulverizer body 1, and a plurality of inclined air inlet holes distributed in an array are opened on the inner ring 5, and a crushing mechanism 2 for assisting in further crushing of the material is arranged at the center of the inner ring 5; and a throwing mechanism 3 for re-throwing the adhered material is installed on the crushing mechanism 2.

[0026] The crushing mechanism 2 includes a fixed shaft 201, which is rotatably connected to the center point of the bottom of the inner wall of the air flow mill body 1. A rotating sleeve 202 is sleeved and rotatably mounted on the fixed shaft 201, and a connecting plate 203 is clamped and fixed on the rotating sleeve 202. The connecting plate 203 is located at the bottom of both sides of the fixed shaft 201, and a crushing roller 204 and a shovel plate 205 are respectively installed. The crushing roller 204 is rotatably connected to the connecting plate 203, and the lower surface of the crushing roller 204 is slidably connected to the lower surface of the inner wall of the air flow mill body 1. Through the above arrangement, after the airflow enters the inner ring 5, it can pass through the inclined air inlet holes at different positions, so that the airflow entering the inner ring 5 will be in the inner ring 5. The vortex form, and then blows the connecting plate 203 to rotate in the inner ring 5. During the rotation process, the crushing roller 204 rotatably connected to the bottom of one end of the connecting plate 203 will crush the material falling on the lower surface of the inner wall of the air flow mill body 1 to break it, thereby providing another crushing method besides air flow crushing and enhancing the crushing effect of the material. In addition, the shoveling plate 205 installed at the bottom of the other end of the connecting plate 203 will shovel up the crushed material, so that it can be quickly rolled up again by the air flow for crushing. The above actions increase the crushing method, improve the crushing effect, and then improve the crushing efficiency, and do not require electric drive, and also achieve the effect of energy saving and environmental protection.

[0027] The throwing mechanism 3 includes a magnetic strip 301, one end of which is fixedly connected to a side of the fixed shaft 201 near the top. A plurality of grooves are provided on the lower surface of the inner wall of the airflow pulverizer body 1, and a magnetic metal block 302 is slidably connected in the plurality of grooves. The upper surface of the top of the magnetic metal block 302 is in the same horizontal plane as the lower surface of the inner wall of the airflow pulverizer body 1, and a spring 303 is fixedly connected between the bottom end of the magnetic metal block 302 and the inner wall of the groove. Through the above arrangement, when the connecting plate 203 is affected by the airflow and rotates, the synchronously rotating magnetic strip 301 can achieve magnetic attraction of the magnetic metal block 302 adjacent to it, and the generated magnetic attraction can effectively lift the corresponding magnetic metal block 302 for a distance. At this time, the material falling on the magnetic metal block 302 will be lifted up again and enter the center of the airflow for continuous crushing. After the magnetic strip 301 leaves, the lifted magnetic metal block 302 is pulled back into the groove by the spring 303 for standby use. This arrangement achieves the efficiency of accelerating material crushing and improves the material crushing effect.

[0028] The maximum stretching distance of the spring 303 is smaller than the rising distance of the magnetic metal block 302 . This arrangement can effectively prevent the magnetic metal block 302 from slipping out of the groove, while facilitating the spring 303 to reset the magnetic metal block 302 .

[0029] One side of the shoveling plate 205 is set as an inclined surface, and the bottom of the shoveling plate 205 is closely connected to the lower surface of the inner wall of the air flow pulverizer body 1. Through this setting, when the connecting plate 203 rotates, the material stuck to the lower surface of the inner wall of the air flow pulverizer body 1 can be shoveled up, making it convenient for the material to be re-rolled up by the air flow for crushing, thereby improving the material crushing effect.

[0030] The connecting plate 203 is located at the top center and is equipped with a brush plate 4 for cleaning the interception net 12 at the bottom of the air inlet pipe 7. The top of the brush plate 4 is fitted and connected to the interception net 12. By setting the brush plate 4 fitted and connected to the interception net 12, the surface of the interception net 12 can be continuously cleaned when the connecting plate 203 rotates, thereby preventing the interception net 12 from being blocked by materials, resulting in the problem that the materials cannot quickly enter the air outlet pipe 8 from the interception net 12 and be discharged, resulting in reduced discharge efficiency.

[0031] A filter screen 6 is installed at one end of each of the inclined air inlet holes located in the inner ring 5. By installing a filter screen 6 at one end of each of the inclined air inlet holes located in the inner ring 5, materials affected by the airflow can be prevented from flying out of the inner ring 5, resulting in normal circulation of the outer ring airflow.

[0032] Working principle: First, through the inclined air inlet holes at different positions, the incoming airflow will present a vortex shape in the inner ring 5, thereby blowing the connecting plate 203 to rotate in the inner ring 5. During the rotation process, the crushing roller 204 rotatably connected to the bottom of one end of the connecting plate 203 will crush the material falling on the lower surface of the inner wall of the airflow crusher body 1 to break it, thereby providing another crushing method in addition to airflow crushing, thereby enhancing the crushing effect of the material. In addition, the shovel plate 205 installed at the bottom of the other end of the connecting plate 203 will scoop up the crushed material so that it can be quickly rolled up again by the airflow for crushing. The above actions increase the crushing method, improve the crushing effect, and then improve the crushing efficiency. Without the need for electric drive, it also achieves the effect of energy saving and environmental protection. The brush plate 4 that is closely connected to the interception net 12 can achieve the continuous cleaning of the surface of the interception net 12 when the connecting plate 203 rotates, so as to avoid the material blocking the interception net 12, resulting in the problem that the material cannot quickly enter the air outlet pipe 8 from the interception net 12 for discharge, resulting in reduced discharge efficiency.

[0033] Among them, when the connecting plate 203 is affected by the airflow and rotates, the synchronously rotating magnetic strip 301 can achieve magnetic attraction to the magnetic metal block 302 adjacent to it, and the generated magnetic attraction force can effectively lift the corresponding magnetic metal block 302 for a distance. At this time, the material falling on the magnetic metal block 302 will be lifted up again and enter the center of the airflow for continuous crushing. After the magnetic strip 301 leaves, the lifted magnetic metal block 302 is pulled back into the groove by the spring 303 for standby use. This setting achieves the efficiency of accelerating material crushing and improving the material crushing effect.

[0034] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An air flow pulverizer, comprising an air flow pulverizer body (1), wherein the air flow pulverizer body (1) is provided with an air inlet pipe (7), an air outlet pipe (8), a support seat (11) and a feed pipe (9), wherein a feed hopper (10) is installed on the feed pipe (9), and an interception net (12) is provided at the bottom end of the air outlet pipe (8), characterized in that: Also includes: An inner ring (5), the inner ring (5) is concentrically arranged inside the airflow pulverizer body (1) and is fixedly connected to the airflow pulverizer body (1), and the inner ring (5) is provided with a plurality of inclined air inlet holes distributed in an array; A crushing mechanism (2) for assisting in further crushing the material is provided at the center of the inner ring (5); The crushing mechanism (2) is provided with a throwing mechanism (3) for throwing up the adhered materials again.

2. A jet mill according to claim 1, characterized in that: The crushing mechanism (2) comprises a fixed shaft (201), the fixed shaft (201) is rotatably connected to the center point of the bottom of the inner wall of the air flow mill body (1), a rotating sleeve (202) is sleeved and rotatably connected to the fixed shaft (201), a connecting plate (203) is clamped and fixed to the rotating sleeve (202), and a crushing roller (204) and a shovel plate (205) are respectively installed at the bottom of the connecting plate (203) located on both sides of the fixed shaft (201), the crushing roller (204) is rotatably connected to the connecting plate (203), and the lower surface of the crushing roller (204) is slidably connected to the lower surface of the inner wall of the air flow mill body (1).

3. A jet mill according to claim 2, characterized in that: The throwing mechanism (3) comprises a magnetic strip (301), one end of which is fixedly connected to a side of a fixed shaft (201) close to the top end, a plurality of grooves are provided on the lower surface of the inner wall of the air flow pulverizer body (1), and a magnetic metal block (302) is slidably connected in the plurality of grooves, the upper surface of the top end of the magnetic metal block (302) and the lower surface of the inner wall of the air flow pulverizer body (1) are in the same horizontal plane, and a spring (303) is fixedly connected between the bottom end of the magnetic metal block (302) and the inner wall of the groove.

4. A jet mill according to claim 3, characterized in that: The maximum stretching distance of the spring (303) is smaller than the rising distance of the magnetic metal block (302).

5. The air flow pulverizer according to claim 2, characterized in that: One side of the shoveling plate (205) is arranged as an inclined surface, and the bottom of the shoveling plate (205) is closely connected to the lower surface of the inner wall of the air flow pulverizer body (1).

6. The air flow pulverizer according to claim 2, characterized in that: The connecting plate (203) is provided with a brush plate (4) at the top center thereof for cleaning the interception net (12) at the bottom of the air intake pipe (7), and the top of the brush plate (4) is fitted and connected to the interception net (12).

7. The air flow pulverizer according to claim 1, characterized in that: A filter screen (6) is installed at one end of each of the plurality of inclined air inlet holes located inside the inner ring (5).

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