An air stream breaker

Abstract

The utility model discloses an airflow breaker, including breaking cylinder, blowing mechanism, filter mechanism and reverse blowing mechanism, be equipped with the cavity in breaking cylinder, and the lateral wall and top of breaking cylinder are equipped with the feed end and discharge end of intercommunication in the cavity respectively, blowing mechanism is linked with the inner bottom of cavity, and it is used for spraying compressed airflow to the cavity, filter mechanism includes support plate and a plurality of filter drums, and support plate is installed in the cavity, and a plurality of filter drums are all installed on support plate, reverse blowing mechanism includes gas storage spare and air -jet spare, and air -jet spare is installed in the cavity, and air -jet spare has a plurality of air -jet heads, and each air -jet head corresponds with the open mouth of each filter drum respectively, and air -jet spare is linked with gas storage spare. The airflow breaker provided by the utility model can spray high pressure airflow to each filter drum through air -jet spare and blow back, which can effectively avoid the blockage of filter drum after long time use.

Description

Technical Field

[0001] This utility model relates to the field of airflow crusher technology, specifically to an airflow crusher. Background Technology

[0002] In recent years, as the superior performance of ultrafine nanoparticles has been increasingly recognized, more and more researchers have begun to focus on the manufacturing and research of ultrafine nanoparticles. Airflow milling technology, as an important method for preparing ultrafine powders, has become one of the preferred methods for developing various high-performance microparticle materials.

[0003] Existing air jet mills separate crushed powders by setting up a filter screen. Because the inner diameter of the mesh on the filter screen is small, after the air jet mill has been used for a long time, larger powder particles tend to adhere to the filter screen and cause blockage. If the powder on the filter screen is not cleaned in time, it will affect the stable operation of the air jet mill. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide an airflow breaker that solves the problem that the filter screen in the airflow breaker is prone to clogging after long-term use.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides an airflow breaker, comprising: A crushing cylinder, wherein a cavity is provided inside the crushing cylinder, and a feed end and a discharge end communicating with the cavity are respectively provided on the side wall and the top of the crushing cylinder; An air blowing mechanism, which is connected to the inner bottom of the cavity, is used to blow compressed air into the cavity; The filtration mechanism includes a support plate and a plurality of filter cartridges, the support plate being installed within a cavity, and the plurality of filter cartridges being installed on the support plate; and, The backflush mechanism includes an air storage component and an air jet component. The air jet component is installed in the cavity and has multiple air jet heads, each of which corresponds to the opening of a filter cartridge. The air jet component is connected to the air storage component.

[0006] In some embodiments, the support plate has an internal threaded hole, the bottom end of the filter cylinder has a filtration area, and the top of the filter cylinder has an external threaded section that mates with the internal threaded hole.

[0007] In some embodiments, the top of the filter cartridge is provided with an annular pressure block, and a sealing gasket is also fitted on the filter cartridge, the sealing gasket being able to press tightly between the annular pressure block and the support plate.

[0008] In some embodiments, the top of the filter cartridge is further provided with a perforation perpendicular to the axis of the filter cartridge.

[0009] In some embodiments, the crushing cylinder includes a cylinder body and a cover body, the cover body being detachably connected to the cylinder body, the feed end being disposed on the side wall of the cylinder body, the discharge end being disposed on the cover body, the support plate being fixedly connected to the cylinder body, and the air jet being fixedly connected to the cover body.

[0010] In some embodiments, a striking mechanism is further included, which includes a rotating shaft, a plurality of striking plates, and a driving member. The rotating shaft is rotatably mounted inside the cylinder along an axis perpendicular to the cylinder body. The plurality of striking plates are spaced apart on the rotating shaft. The driving member is mounted outside the cylinder body and its output end is fixedly connected to one end of the rotating shaft.

[0011] In some embodiments, each of the striking plates is provided with breaking teeth.

[0012] In some embodiments, an air extraction mechanism is further included, which is connected to the discharge end.

[0013] In some embodiments, the gas storage device is a hydrogen storage tank containing high-pressure gas, the outlet of the hydrogen storage tank is connected to the jet device, and the outlet of the hydrogen storage tank is equipped with a pulse valve.

[0014] In some embodiments, an observation window is embedded in the cylinder.

[0015] Compared with existing technologies, this utility model provides an airflow crusher with a cavity inside the crushing cylinder. The side wall and top of the crushing cylinder are respectively provided with an inlet and an outlet end communicating with the cavity. An air blowing mechanism is connected to the bottom of the cavity and is used to spray compressed air into the cavity. A filtration mechanism includes a support plate and multiple filter cylinders. The support plate is installed inside the cavity, and the filter cylinders are all installed on the support plate. A back-blowing mechanism includes an air storage component and an air jet component. The air jet component is installed in the cavity and has multiple jet heads, each corresponding to the opening of a filter cylinder. The air jet component is connected to the air storage component. After the airflow crusher has been used for a period of time, the multiple jet heads of the air jet component spray high-pressure air into the openings of each filter cylinder to back-blow the filter cylinders, thus blowing off large particles of powder adsorbed on the filter cylinders and preventing clogging of the filter cylinders after prolonged use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an airflow breaker provided by this utility model; Figure 2 This is a schematic diagram of the internal structure of an airflow breaker provided by this utility model; Figure 3 yes Figure 2 Enlarged view of region A in the middle; Figure 4 This is a schematic diagram of the structure of the filter cartridge provided by this utility model; Figure 5 This is a schematic diagram of the structure of the support plate provided by this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0018] To address the technical problem of filter screen clogging in existing air classifiers after prolonged use, this solution provides an air classifier that can backflush the filter cylinder to remove large particles of powder adsorbed on it, ensuring stable operation of the air classifier over extended periods.

[0019] Please see Figures 1-5 , Figures 1-5 An airflow crusher according to one embodiment of the present utility model includes a crushing cylinder 1, an air blowing mechanism 2, a filtering mechanism 3 and a back-blowing mechanism 4. The crushing cylinder 1 is provided with a cavity, and the side wall and top of the crushing cylinder 1 are respectively provided with a feed end 1a and a discharge end 1b communicating with the cavity. The blowing mechanism 2 is connected to the inner bottom of the cavity and is used to spray compressed air into the cavity; the filtering mechanism 3 includes a support plate 31 and a plurality of filter cylinders 32, the support plate 31 is installed in the cavity, and the plurality of filter cylinders 32 are all installed on the support plate 31; the back-blowing mechanism 4 includes an air storage component 41 and an air jet component 42, the air jet component 42 is installed in the cavity, the air jet component 42 has a plurality of air jet heads, and each air jet head corresponds to the opening of each filter cylinder 32, and the air jet component 42 is connected to the air storage component 41.

[0020] In actual use, the material is conveyed into the cavity of the crushing cylinder 1 through the feed end 1a. The filtered and dried compressed air is sprayed into the cavity through the air blowing mechanism 2. Under the action of the high-pressure airflow, the material can be crushed by impact with the support plate. Smaller particles can pass through the mesh on the filter cylinder 32 with the airflow and be discharged through the discharge end 1b. After the airflow crusher has been used for a period of time, the air blowing mechanism 2 can be turned off, and high-pressure gas can be sprayed into the opening of each filter cylinder 32 through the jet nozzle 42, which can blow off the large particles of powder adsorbed on the filter cylinder 32.

[0021] It should be noted that, based on the above scheme, in order to facilitate the replacement of the filter cylinder, specifically, the support plate 31 is provided with an internal threaded hole 31a, the bottom end of the filter cylinder 32 has a filter area 32a, and the top of the filter cylinder 32 has an external threaded section 32b that mates with the internal threaded hole 31a.

[0022] It is understandable that the filter cartridge 32 has a cavity and an open top, and the filter zone 32a is composed of multiple filter holes connected to the cavity. In addition, based on the above solution, in order to improve the sealing performance when the filter cylinder 32 is connected to the support plate 31, specifically, the top of the filter cylinder 32 is provided with an annular pressure block 321, and the filter cylinder 32 is also fitted with a sealing gasket 322, which can be pressed between the annular pressure block 321 and the support plate 31.

[0023] Furthermore, to facilitate the installation and disassembly of the filter cartridge 32, specifically, a perforation 32c perpendicular to the axial direction of the filter cartridge 32 is provided on the top of the filter cartridge 32.

[0024] Understandably, operators can install or remove the filter cartridge 32 by inserting a disassembly tool (shaft) into the perforation 32c and rotating the shaft in either the forward or reverse direction.

[0025] In one embodiment, the crushing cylinder 1 includes a cylinder body 11 and a cover body 12, the cover body 12 being detachably connected to the cylinder body 11, the feed end 1a being disposed on the side wall of the cylinder body 11, the discharge end 1b being disposed on the cover body 12, the support plate 31 being fixedly connected to the cylinder body 11, and the jetting element 42 being fixedly connected to the cover body 12.

[0026] The cylinder 11 is equipped with an observation window, which allows the operator to understand the breakage situation inside the cylinder 11.

[0027] Specifically, the cylinder 11 and the cover 12 are provided with flanges, and multiple connecting holes are opened on the two flanges respectively. Locking bolts are inserted into the corresponding connecting holes of the two flanges and cooperate with the locking nuts to realize the detachable connection between the cover 12 and the cylinder 11.

[0028] In one embodiment, the gas storage component 41 is a hydrogen storage tank containing high-pressure gas. The outlet of the hydrogen storage tank is connected to the jetting component 42, and the outlet of the hydrogen storage tank is equipped with a pulse valve.

[0029] It should be noted that the jetting component 42 includes a gas guide pipe and multiple jet heads. The gas guide pipe is installed on the cover 12, and the multiple jet heads are installed on the gas guide pipe. The gas guide pipe is connected to the gas outlet of the hydrogen storage tank.

[0030] It is understandable that, based on the above solution, in order to improve the crushing efficiency of materials, a striking mechanism 5 is specifically included. The striking mechanism 5 includes a rotating shaft 51, multiple striking plates 52, and a driving component 53. The rotating shaft 51 is rotatably installed inside the cylinder 11 along the axis perpendicular to the cylinder 11. The multiple striking plates 52 are spaced apart on the rotating shaft 51. The driving component 53 is installed outside the cylinder 11 and its output end is fixedly connected to one end of the rotating shaft 51.

[0031] It is understandable that by driving the rotating shaft 51 to rotate through the driving component 53, multiple striking plates 52 are driven to rotate. The striking plates 52 collide with the material blown up by the airflow, which can better crush the material and improve the crushing efficiency.

[0032] In addition, based on the above scheme, each of the striking plates 52 is provided with breaking teeth.

[0033] Furthermore, it also includes an air extraction mechanism 6, which is connected to the discharge end 1b; specifically, the air extraction mechanism 6 is an air pump, and the air volume of the air pump is greater than the high-pressure air flow rate entering the cylinder, so that the cylinder forms a negative pressure environment, and the crushed material is discharged under the suction of the air extraction mechanism 6.

[0034] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An airflow crusher, characterized in that, include: A crushing cylinder, wherein the crushing cylinder has a cavity inside, and the side wall and top of the crushing cylinder are respectively provided with a feed end and a discharge end communicating with the cavity; An air blowing mechanism, which is connected to the inner bottom of the cavity, is used to blow compressed air into the cavity; The filtration mechanism includes a support plate and a plurality of filter cartridges, the support plate being installed within a cavity, and the plurality of filter cartridges being installed on the support plate; and, The backflush mechanism includes an air storage component and an air jet component. The air jet component is installed in the cavity and has multiple air jet heads, each of which corresponds to the opening of a filter cartridge. The air jet component is connected to the air storage component.

2. The airflow crusher according to claim 1, characterized in that, The support plate has an internal threaded hole, the bottom end of the filter cylinder has a filtration area, and the top of the filter cylinder has an external threaded section that mates with the internal threaded hole.

3. The airflow crusher according to claim 2, characterized in that, The top of the filter cylinder is provided with an annular pressure block, and a sealing gasket is also fitted on the filter cylinder. The sealing gasket can be pressed tightly between the annular pressure block and the support plate.

4. The airflow crusher according to claim 3, characterized in that, The top of the filter cartridge also has a perforation perpendicular to the axis of the filter cartridge.

5. The airflow crusher according to claim 4, characterized in that, The crushing cylinder includes a cylinder body and a cover body. The cover body is detachably connected to the cylinder body. The feed end is located on the side wall of the cylinder body, the discharge end is located on the cover body, the support plate is fixedly connected to the cylinder body, and the air jet is fixedly connected to the cover body.

6. The airflow crusher according to claim 5, characterized in that, It also includes a striking mechanism, which includes a rotating shaft, multiple striking plates, and a driving component. The rotating shaft is rotatably mounted inside the cylinder along an axis perpendicular to the cylinder body. The multiple striking plates are spaced apart on the rotating shaft. The driving component is mounted outside the cylinder body and its output end is fixedly connected to one end of the rotating shaft.

7. The airflow crusher according to claim 6, characterized in that, Each of the aforementioned striking plates is equipped with breaking teeth.

8. The airflow crusher according to claim 1, characterized in that, It also includes an air extraction mechanism, which is connected to the discharge end.

9. The airflow crusher according to claim 1, characterized in that, The gas storage device is a hydrogen storage tank, which contains high-pressure gas. The outlet of the hydrogen storage tank is connected to the jet device, and the outlet of the hydrogen storage tank is equipped with a pulse valve.

10. An airflow crusher according to claim 5, characterized in that, An observation window is embedded in the cylinder.

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