Device for double separation and simultaneous recovery of fine powder

Abstract

The utility model relates to the technical field of fine powder separation, and discloses a double-separation and simultaneous fine powder recovery device which comprises a separation barrel, the separation barrel is in a hollow funnel shape with the top and the bottom open, the side wall face of the separation barrel is fixedly connected with a feeding pipe, the feeding pipe is in a hollow rectangular pipe shape, and the feeding pipe is communicated with the interior of a cavity of the separation barrel. A top cover is clamped to the top of the separation barrel, a discharging pipe is fixedly connected to the top of the top cover, a synergistic structure is arranged in a cavity of the separation barrel and comprises a filter screen and a filter tank, the filter screen is fixedly connected to the bottom wall face of the top cover, the filter tank penetrates through the wall face of the filter screen, and the synergistic structure can improve the separation efficiency of the separation barrel; by arranging the synergistic structure, the fine powder separation efficiency of the device can be improved, and the synergistic structure prevents the fine powder from being discharged from the device along with the gas in a manner of filtering the fine powder mixed in the gas and enabling the fine powder to participate in separation again, so that the separation efficiency of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fine powder separation, and in particular relates to a device for double separation and simultaneous recovery of fine powder. Background Art

[0002] The fluidized bed jet mill is a machine that accelerates compressed air into a high-speed airflow through a Laval nozzle and then injects it into the grinding area to fluidize the material (the airflow expands and becomes suspended and boiling in a fluidized bed and collides with each other), so each particle has the same motion state. The air source is the power of the jet mill grinding process. The requirement for compressed air can be between 0.7-0.8MPa, and the pressure should be kept stable. Even if there are fluctuations, the frequency should not be too high, otherwise it will affect the quality of the product. The classification of the jet mill is carried out by a supersonic rotating classifying wheel. The center of the bottom of the classifying wheel is fixed on the main shaft of the direct-connected motor like a round "iron barrel". It is driven by the motor to rotate at supersonic speed. The opening is opposite to the pipeline entrance of the micro powder collection system, and a certain gap is maintained and cannot be too large, otherwise the unsorted coarse powder will enter the pipeline of the micro powder collection system from the gap, affecting the product quality. To prevent such incidents, air sealing is performed at the gap. Blades are installed on both sides of the classifying wheel, and the gap between the blades is the channel for sorting micro powder. The ground powder floats up with the airflow. Ultrafine powder can easily pass through the gaps between the blades and enter the powder dust collector due to its small particle size. Larger particles, under the centrifugal force of the classifying wheel, splash onto the outer wall and then fall to be ground again. The airflow mill collection system consists of a cyclone separator and dust collection.

[0003] The ultrafine powder enters the cyclone separator through a sealed pipe, and the airflow rotates in the cyclone separator, throwing the ultrafine powder out and landing, and the ultrafine powder is discharged and packaged by the discharge system as the finished product. The yield of existing equipment is only below 99%, which is low, so a device that can always maintain a yield of more than 99% is needed.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A device for double separation and simultaneous recovery of fine powder comprises a separation cylinder, which is in the shape of a hollow funnel with open top and bottom, a feed pipe fixedly connected to the side wall of the separation cylinder, the feed pipe is in the shape of a hollow rectangular tube, the feed pipe is connected to the interior of the separation cylinder cavity, a top cover is clamped on the top of the separation cylinder, a discharge pipe is fixedly connected to the top of the top cover, an enhancement structure is arranged in the cavity of the separation cylinder, the enhancement structure comprises a filter screen and a filter trough, the filter screen is fixedly connected to the bottom wall of the top cover, the filter trough runs through the wall of the filter screen, and the enhancement structure can improve the separation efficiency of the separation cylinder.

[0007] As a preferred embodiment of the utility model, the discharge pipe is in the shape of a hollow circular tube, the bottom of the discharge pipe can be connected to the separation cylinder cavity, the receiving tube can adapt to the bottom of the cavity of the discharge pipe, the filter tank is a circular tank, and multiple filter tanks are arranged in a circular array on the wall of the filter screen.

[0008] As a preferred embodiment of the utility model, the efficiency-enhancing structure also includes a collecting tube, an air inlet incision and a scraper. The collecting tube is fixedly connected to the bottom of the discharge pipe, the filter is fixedly connected to the top of the collecting tube, the air inlet incision is opened on the side wall of the collecting tube, and the scraper is rotatably connected to the bottom of the filter.

[0009] As a preferred embodiment of the utility model, the collecting tube is in the shape of a funnel with a gradually narrowing top, the size of the top of the collecting tube is consistent with the bottom of the discharge tube, the air inlet incision cuts off half of the collecting tube, the air inlet incision faces the opening connecting the feed pipe and the separation cylinder, the bottom of the filter is circularly rotatably connected to a circular column, and a plurality of scrapers are fixedly connected to the outer arc surface of the circular column, the scrapers are rotatably connected in the cavity of the collecting tube, the height of the scrapers is consistent with that in the cavity of the collecting tube, and the top of the scrapers can contact the bottom of the filter.

[0010] As a preferred embodiment of the utility model, the efficiency-enhancing structure also includes a connecting rod, a rotating head and a connecting plate. The connecting rod is fixedly connected to the bottom of the separation cylinder cavity, the rotating head is rotatably connected to the top of the connecting rod, the connecting plate is fixedly connected to the wall of the rotating head, the rotating head and the center of the bottom circle of the separation cylinder cavity are aligned, the rotating head is bullet-shaped, the connecting plate is a parallelogram plate, and a plurality of connecting plates are fixedly connected in a circular array on the outer arc surface of the rotating head.

[0011] As a preferred embodiment of the utility model, the bottom of the separation cylinder is fixedly connected with a connecting pipe, the wall of the connecting pipe is fixedly connected with a vibration motor, the bottom of the connecting pipe is threadedly connected with a connecting pipe, and the bottom of the connecting pipe is fixedly connected with a collection bin.

[0012] As a preferred embodiment of the utility model, the connecting tube is a U-shaped hollow tube, and the separation cylinder, feed pipe, top cover, discharge pipe and enhancement structure are symmetrically arranged on the top of the connecting tube. The bottoms of the symmetrical separation cylinders are connected to the two openings on the top of the connecting tube, and the vibration motors are symmetrically arranged at the two cavity openings of the connecting tube.

[0013] As a preferred embodiment of the utility model, the collecting bin is in the shape of a hollow rectangular box, the connecting pipe is in the shape of a circular tube, the bottom of the connecting pipe can be connected to the collecting bin cavity, the connecting pipe and the bottom center threaded connection of the connecting pipe, and when the connecting pipe and the connecting pipe are connected, the connecting pipe can be connected to the connecting tube cavity.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The efficiency of separating fine powders of the device can be improved by setting up a synergistic structure, because the synergistic structure prevents the fine powders mixed in the gas from being discharged from the device along with the gas by filtering them and making them participate in the separation again, thereby improving the separation efficiency of the device and achieving a higher yield.

[0016] 2. The separation performance of the separation cylinder can be increased by setting a synergistic structure because when an internal vortex is formed in the separation cylinder cavity, the rotor and the connecting plate can rotate along with the rotation of the internal vortex, thereby increasing the flow rate of the internal vortex and improving the separation performance of the separation cylinder.

[0017] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the attached picture:

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a cross-sectional view of the separation cylinder and the exploded view of the top cover of the utility model;

[0021] Figure 3 This is a bottom perspective view of the top cover of the utility model;

[0022] Figure 4 This is an exploded view of the rotor and connecting rod of the utility model;

[0023] Figure 5 This is a disassembled diagram of the collection bin and the connecting pipe of the utility model.

[0024] In the figure: 20, separation cylinder; 21, feed pipe; 22, top cover; 23, discharge pipe; 24, connecting pipe; 25, vibration motor; 26, collection bin; 27, connecting pipe; 30, collection pipe; 31, air inlet incision; 32, filter screen; 33, filter trough; 34, scraper; 35, connecting rod; 36, rotating head; 37, connecting plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, a device for double separation and simultaneous recovery of fine powder includes a separation cylinder 20, which is in the shape of a hollow funnel with open top and bottom. A feed pipe 21 is fixedly connected to the side wall of the separation cylinder 20. The feed pipe 21 is in the shape of a hollow rectangular tube. The feed pipe 21 is connected to the cavity of the separation cylinder 20. A top cover 22 is clamped on the top of the separation cylinder 20, and a discharge pipe 23 is fixedly connected to the top of the top cover 22. When in use, the feed pipe 21 is connected to a corresponding pipeline for conveying materials. This is an existing technology and will not be described in detail here.

[0027] like Figure 3 As shown, an efficiency-enhancing structure is arranged in the cavity of the separation cylinder 20, and the efficiency-enhancing structure includes a filter screen 32 and a filter slot 33. The filter screen 32 is fixedly connected to the bottom wall of the top cover 22, and the filter slot 33 penetrates through the wall of the filter screen 32. The efficiency-enhancing structure can improve the separation efficiency of the separation cylinder 20.

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the discharge pipe 23 is in the shape of a hollow circular tube, the bottom of the discharge pipe 23 can be connected to the cavity of the separation cylinder 20, the receiving pipe 30 can be adapted to the bottom of the cavity of the discharge pipe 23, the filter tank 33 is a circular groove, and a plurality of filter tanks 33 are arranged in a circular array on the wall of the filter screen 32. The efficiency-enhancing structure also includes a receiving pipe 30, an air inlet cutout 31 and a scraper 34. The receiving pipe 30 is fixedly connected to the bottom of the discharge pipe 23, the filter screen 32 is fixedly connected to the top of the receiving pipe 30, and the air inlet cutout 31 is opened. On the side wall of the receiving tube 30, the scraper 34 is rotatably connected to the bottom of the filter screen 32. The receiving tube 30 is in the shape of a funnel with a gradually narrowed top. The size of the top of the receiving tube 30 is consistent with the bottom of the discharge tube 23. The air inlet cutout 31 cuts off half of the receiving tube 30. The air inlet cutout 31 faces the opening connecting the feed pipe 21 and the separation cylinder 20. The bottom of the filter screen 32 is rotatably connected to a circular column. A plurality of scrapers 34 are fixedly connected to the outer arc surface of the circular column. The scrapers 34 are rotatably connected in the cavity of the receiving tube 30. The height of the scraper 34 is consistent with the cavity of the collecting tube 30, the top of the scraper 34 can contact the bottom of the filter screen 32, the bottom of the separation cylinder 20 is fixedly connected with a connecting pipe 24, the wall of the connecting pipe 24 is fixedly connected with a vibration motor 25, the bottom of the connecting pipe 24 is threadedly connected with a connecting pipe 27, the bottom of the connecting pipe 27 is fixedly connected with a collecting bin 26, the connecting pipe 24 is a U-shaped hollow tube, and the top of the connecting pipe 24 is symmetrically arranged with the separation cylinder 20, the feed pipe 21, the top cover 22, The discharge pipe 23 and the synergistic structure, the bottom of the symmetrical separation cylinder 20 are connected to the two openings at the top of the connecting pipe 24, the vibration motor 25 is symmetrically arranged at the two openings in the cavity of the connecting pipe 24, the collection bin 26 is in the shape of a hollow rectangular box, the connecting pipe 27 is in the shape of a circular tube, the bottom of the connecting pipe 27 can be connected to the cavity of the collection bin 26, the connecting pipe 27 is connected to the center of the bottom of the connecting pipe 24 with a thread, and when the connecting pipe 27 and the connecting pipe 24 are connected, the connecting pipe 27 can be connected to the cavity of the connecting pipe 24;

[0029] During specific use, the feed pipe 21 is connected to the corresponding high-pressure delivery pipe. When the high-pressure delivery pipe delivers the material into the cavity of the feed pipe 21, the material will rotate and move downward in the cavity of the separation cylinder 20 due to the high pressure. When the material moves to the bottom of the cavity of the separation cylinder 20, the fine powder will move to the bottom of the cavity of the separation cylinder 20 along with the separation cylinder 20, and the gas in the material will move upward toward the bottom of the receiving tube 30 due to the upward vortex formed in the center of the cavity of the separation cylinder 20. When the gas moves to the bottom of the receiving tube 30, it will directly pass through the filter groove 33 at the bottom of the filter screen 32 and be discharged from the device through the discharge pipe 23. If there is fine powder in the gas at this time, it will be blocked by the filter screen 32 and stay at the bottom of the filter screen 32. When the material enters the cavity of the separation cylinder 20, the high pressure of the material will push the scraper 34 and the circular column to rotate at the bottom of the filter screen 32. The scraper 34 will scrape off the fine powder attached to the bottom of the filter screen 32 during rotation and make it participate in the separation of the material again. When the fine powder falls to the bottom of the cavity of the separation cylinder 20, it will directly enter the cavity of the connecting pipe 24. The vibration motor 25 is electrically connected to the power supply. The vibration motor 25 can vibrate every ten seconds. When the fine powder enters the cavity of the connecting pipe 24, it will directly fall into the cavity of the collecting bin 26 through the connecting pipe 27. If the cavity of the connecting pipe 24 is blocked by fine powder, the vibration motor 25 can clear it by vibration. When the cavity of the collecting bin 26 is full, the collecting bin 26 and the connecting pipe 27 can be removed from the bottom of the connecting pipe 24.

[0030] In summary, the efficiency of the device in separating fine powders can be improved by setting up a synergistic structure, because the synergistic structure prevents the fine powders mixed in the gas from being discharged from the device along with the gas by filtering them and making them re-participate in the separation, thereby improving the separation efficiency of the device and achieving a higher yield.

[0031] like Figure 2 and Figure 4 As shown, the synergistic structure also includes a connecting rod 35, a rotating head 36 and a connecting plate 37. The connecting rod 35 is fixedly connected to the bottom of the separation cylinder 20 cavity, the rotating head 36 is rotatably connected to the top of the connecting rod 35, and the connecting plate 37 is fixedly connected to the wall of the rotating head 36. The rotating head 36 is aligned with the center of the bottom circle of the separation cylinder 20 cavity. The rotating head 36 is in the shape of a bullet head, and the connecting plate 37 is a parallelogram plate. A plurality of connecting plates 37 are fixedly connected to the outer arc surface of the rotating head 36 in a circular array.

[0032] In specific use, the rotor 36 and the connecting plate 37 can rotate along with the internal vortex in the chamber of the separation cylinder 20;

[0033] In summary, by setting up an enhancement structure, the separation performance of the separation cylinder 20 can also be increased because when an internal vortex is formed in the cavity of the separation cylinder 20, the rotor 36 and the connecting plate 37 can rotate along with the rotation of the internal vortex, thereby increasing the flow rate of the internal vortex and improving the separation performance of the separation cylinder 20.

[0034] Working principle: the feed pipe 21 is connected to the corresponding high-pressure delivery pipe. When the high-pressure delivery pipe delivers the material into the cavity of the feed pipe 21, the material will rotate and move downward in the cavity of the separation cylinder 20 due to the high pressure. When the material moves to the bottom of the cavity of the separation cylinder 20, the fine powder will move to the bottom of the cavity of the separation cylinder 20 along with the separation cylinder 20, and the gas in the material will move upward toward the bottom of the collection tube 30 due to the upward vortex formed in the center of the cavity of the separation cylinder 20. When the gas moves to the bottom of the collection tube 30, it will directly pass through the filter slot 33 at the bottom of the filter screen 32 and then be discharged through the discharge pipe 23. If there is fine powder in the gas at this time, it will be blocked by the filter screen 32 and stay at the bottom of the filter screen 32. When the material enters the cavity of the separation cylinder 20, the high pressure of the material will push the scraper 34 and the circular column to rotate at the bottom of the filter screen 32. The scraper 34 will scrape off the fine powder attached to the bottom of the filter screen 32 during rotation and make it re-participate in the separation of the material. When the fine powder falls to the bottom of the cavity of the separation cylinder 20, it will directly enter the cavity of the connecting pipe 24. The vibration motor 25 can vibrate every ten seconds. When the fine powder enters the cavity of the connecting pipe 24, it will directly fall into the cavity of the collection bin 26 through the connecting pipe 27.

[0035] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A device for double separation and simultaneous recovery of fine powder, comprising a separation cylinder (20), the separation cylinder (20) being in the shape of a hollow funnel with an open top and bottom, a feed pipe (21) being fixedly connected to the side wall of the separation cylinder (20), the feed pipe (21) being in the shape of a hollow rectangular tube, the feed pipe (21) and the cavity of the separation cylinder (20) being communicated, a top cover (22) being clamped on the top of the separation cylinder (20), a discharge pipe (23) being fixedly connected to the top of the top cover (22), and characterized in that: A performance enhancing structure is provided in the cavity of the separation cylinder (20), the performance enhancing structure comprising a filter screen (32) and a filter groove (33), the filter screen (32) being fixedly connected to the bottom wall surface of the top cover (22), and the filter groove (33) penetrating through the wall surface of the filter screen (32), and the performance enhancing structure can increase the separation efficiency of the separation cylinder (20).

2. The device for double separation and simultaneous recovery of fine powder according to claim 1, characterized in that: The discharge pipe (23) is in the shape of a hollow circular tube, the bottom of the discharge pipe (23) can be connected to the cavity of the separation cylinder (20), the receiving tube (30) can be adapted to the bottom of the cavity of the discharge pipe (23), the filter tank (33) is in the shape of a circular groove, and a plurality of filter tanks (33) are arranged in a circular array on the wall surface of the filter screen (32).

3. The device for double separation and simultaneous recovery of fine powder according to claim 1, characterized in that: The efficiency-enhancing structure further comprises a receiving tube (30), an air inlet notch (31) and a scraper (34); the receiving tube (30) is fixedly connected to the bottom of the discharge tube (23); the filter screen (32) is fixedly connected to the top of the receiving tube (30); the air inlet notch (31) is opened on the side wall of the receiving tube (30); and the scraper (34) is rotatably connected to the bottom of the filter screen (32).

4. The device for double separation and simultaneous recovery of fine powder according to claim 3, characterized in that: The receiving tube (30) is in the shape of a funnel with a gradually narrowing top. The size of the top of the receiving tube (30) is consistent with the bottom of the discharge tube (23). The air inlet cutout (31) cuts off half of the receiving tube (30). The air inlet cutout (31) faces the opening that communicates with the feed tube (21) and the separation cylinder (20). The bottom of the filter screen (32) is rotatably connected to a circular column. A plurality of scrapers (34) are fixedly connected to the outer arc surface of the circular column. The scrapers (34) are rotatably connected in the cavity of the receiving tube (30). The height of the scrapers (34) is consistent with that in the cavity of the receiving tube (30). The top of the scrapers (34) can contact the bottom of the filter screen (32).

5. The device for double separation and simultaneous recovery of fine powder according to claim 3, characterized in that: The synergistic structure further comprises a connecting rod (35), a rotating head (36) and a connecting plate (37); the connecting rod (35) is fixedly connected to the bottom of the separation cylinder (20) cavity; the rotating head (36) is rotatably connected to the top of the connecting rod (35); the connecting plate (37) is fixedly connected to the wall surface of the rotating head (36); the rotating head (36) and the center of the bottom of the separation cylinder (20) cavity are aligned; the rotating head (36) is in the shape of a bullet head; the connecting plate (37) is in the shape of a parallelogram plate; and a plurality of connecting plates (37) are fixedly connected to the outer arc surface of the rotating head (36) in a circular array.

6. The device for double separation and simultaneous recovery of fine powder according to claim 1, characterized in that: The bottom of the separation cylinder (20) is fixedly connected to a connecting pipe (24), the wall of the connecting pipe (24) is fixedly connected to a vibration motor (25), the bottom of the connecting pipe (24) is threadedly connected to a connecting pipe (27), and the bottom of the connecting pipe (27) is fixedly connected to a collecting bin (26).

7. The device for double separation and simultaneous recovery of fine powder according to claim 6, characterized in that: The connecting tube (24) is a U-shaped hollow tube. A separation cylinder (20), a feed pipe (21), a top cover (22), a discharge pipe (23) and a synergistic structure are symmetrically arranged on the top of the connecting tube (24). The bottoms of the symmetrical separation cylinders (20) are respectively connected to two openings on the top of the connecting tube (24). The vibration motors (25) are symmetrically arranged at the two cavity openings of the connecting tube (24).

8. The device for double separation and simultaneous recovery of fine powder according to claim 6, characterized in that: The collecting bin (26) is in the shape of a hollow rectangular box, the connecting pipe (27) is in the shape of a circular tube, the bottom of the connecting pipe (27) can be connected to the cavity of the collecting bin (26), the connecting pipe (27) and the bottom center of the connecting pipe (24) are connected by a thread, and when the connecting pipe (27) and the connecting pipe (24) are connected, the connecting pipe (27) can be connected to the cavity of the connecting pipe (24).

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