Nano calcium powder dust recovery device

Abstract

The utility model discloses a nano calcium powder dust recovery device, which relates to the technical field of lithium battery material pulverization, and comprises a recovery pipe and an air inlet pipe communicated with the top of the recovery pipe, the bottom of the recovery pipe is communicated with an exhaust fan, the inner wall of the recovery pipe is fixedly provided with two filter screens, the outer wall of the recovery pipe is provided with a plurality of collection holes, and the collection holes are communicated with the exhaust fan. The collecting holes are located beside the filter screen, collecting covers cover the outer sides of the collecting holes, rotating supporting mechanisms are arranged between the collecting covers and the pipe wall of the recycling pipe, rotating rods are rotationally arranged at the two ends of the back side of the recycling pipe in a penetrating mode, the ends, located in the recycling pipe, of the rotating rods are fixedly sleeved with connecting plates, and scraping plates are fixedly arranged at the bottoms of the connecting plates. By means of the recycling pipe, the exhaust fan, the filter screen, the collecting hole, the collecting cover, the rotating rod, the connecting plate, the scraper and the reciprocating swing mechanism, nano calcium powder dust can be rapidly sucked and collected, meanwhile, damage of the dust to the exhaust fan is reduced, and the operation convenience and the recycling effect of the recycling device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery material powder making, in particular to a nano calcium powder dust recovery device. Background Art

[0002] Nano calcium powder is a calcium compound powder with a special shape and structure. It is a powder product produced during the powder making process of lithium battery positive electrode materials. Nano calcium powder will produce a lot of dust during the production process. In order to reduce the damage of dust to human body and environment, the dust needs to be effectively recycled and utilized.

[0003] After searching, the patent number CN218573143U discloses a dust recovery device, which extracts the dust-laden gas into the arc groove by setting an exhaust fan, and then the larger dust impurities in the dust gas will be trapped at the bottom of the inner side of the arc groove through the barrier of the arc groove, and then the dust gas will continue to be filtered through two filter plates due to pressure reasons, and then the smaller impurities in the dust gas will be filtered.

[0004] The exhaust fan used for suction in the above device is arranged on the front side of the filter, so that the dust is first discharged by the exhaust fan. However, since the dust particles are small, they can easily enter the inside of the exhaust fan and affect the normal operation of the exhaust fan, resulting in the inability to continuously and stably carry out the dust recovery work, thereby reducing the recovery efficiency. Utility Model Content

[0005] In view of the above problems existing in the existing nano calcium powder dust recovery device, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a nano-calcium powder dust recovery device, which solves the problem that dust particles easily enter the interior of the exhaust device and affect the dust recovery efficiency and sustainability.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A nano-calcium powder dust recovery device, comprising a recovery pipe and an air inlet pipe connected to the top of the recovery pipe, an exhaust fan connected to the bottom of the recovery pipe, two filter screens fixedly arranged on the inner wall of the recovery pipe, a plurality of collecting holes opened on the outer wall of the recovery pipe, the collecting holes are located beside the filter screen, the outer sides of the plurality of collecting holes are covered with a collecting cover, and a rotating support mechanism is provided between the collecting cover and the pipe wall of the recovery pipe;

[0009] Both ends of the back side of the recovery pipe are rotatably penetrated with a rotating rod, one end of the rotating rod located in the recovery pipe is fixedly sleeved with a connecting plate, the bottom of the connecting plate is fixedly provided with a scraper, and the bottom of the scraper is in contact with the top of the filter screen;

[0010] The rear ends of the two rotating rods are commonly provided with a reciprocating swing mechanism for driving the rotating rods to rotate.

[0011] Preferably, the reciprocating swing mechanism comprises two synchronous wheels, the two synchronous wheels are respectively fixedly sleeved on the outer sides of the two rotating rods, and the outer sides of the two synchronous wheels are jointly sleeved with a synchronous belt;

[0012] Two symmetrically arranged fixing plates are fixed on the back side of the recovery pipe, a reciprocating screw is rotatably arranged between the two fixing plates, a sleeve is threadedly sleeved on the rod wall of the reciprocating screw, a rack is fixedly arranged on the tube wall of the sleeve, a fan-shaped gear is matched with the rack, and the fan-shaped gear is fixedly sleeved with the rotating rod, a motor is fixedly arranged on the outer wall of the fixing plate, and the output end of the motor passes through the fixing plate and is fixedly connected to the reciprocating screw.

[0013] Preferably, the rotating support mechanism includes a support plate, the support plate is fixedly connected to the recovery pipe, a support rod is rotatably penetrated inside the support plate, a mounting plate is fixedly sleeved on the rod wall of the support rod, and the mounting plate is fixedly connected to the collection cover.

[0014] Preferably, a connecting tube is fixedly provided on the top of the collecting cover, a plurality of positioning rings are fixedly provided on the outer wall of the recovery tube, an insertion rod is slidably passed through the top of the connecting tube, the upper end of the insertion rod is inserted into the positioning ring, a spring is sleeved on the rod wall of the insertion rod, and both ends of the spring are fixedly connected to the insertion rod and the connecting tube respectively.

[0015] Furthermore, a sliding groove is provided on the tube wall of the connecting tube, a pull plate is slidably inserted into the sliding groove, and one end of the pull plate is fixedly connected to the insertion rod.

[0016] Preferably, the rack is in contact with the wall of the recovery pipe.

[0017] Preferably, the mesh sizes of the two filters increase from top to bottom.

[0018] Preferably, the longitudinal section of the scraper is arranged in a pointed cone shape.

[0019] Preferably, handles are fixedly provided on the outer sides of the plurality of collecting covers.

[0020] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0021] 1. The utility model can quickly suck and collect nano calcium powder dust through the recovery pipe, exhaust fan, filter screen, collection hole, collection cover, rotating rod, connecting plate, scraper and reciprocating swing mechanism, while reducing the damage of dust to the exhaust fan, improving the operation convenience and recovery effect of the recovery device.

[0022] 2. The utility model, through the collection cover, rotating support mechanism, connecting pipe, insertion rod, positioning ring, spring and pull plate, can rotate the collection cover after the recycling is completed, so as to facilitate the centralized removal and treatment of the dust scraped into the collection cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a rear view of the utility model;

[0026] Figure 3 For the utility model Figure 1 A magnified schematic diagram of part A;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the scraper of the utility model.

[0028] Description of reference numerals:

[0029] 1. Recovery pipe; 2. Air inlet pipe; 3. Exhaust fan; 4. Filter; 5. Collection hood; 6. Rotating rod; 7. Connecting plate; 8. Scraper; 9. Synchronous wheel; 10. Synchronous belt; 11. Fixed plate; 12. Reciprocating screw rod; 13. Sleeve; 14. Rack; 15. Fan gear; 16. Motor; 17. Support plate; 18. Support rod; 19. Mounting plate; 20. Connecting pipe; 21. Positioning ring; 22. Insert rod; 23. Spring; 24. Pull plate; 25. Handle. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] The utility model embodiment discloses a nano calcium powder dust recovery device.

[0032] Example 1

[0033] The utility model provides Figure 1-4A nano-calcium powder dust recovery device shown includes a recovery pipe 1 and an air inlet pipe 2 connected to the top of the recovery pipe 1, an exhaust fan 3 is connected to the bottom of the recovery pipe 1, two filter screens 4 are fixedly provided on the inner wall of the recovery pipe 1, and the mesh numbers of the two filter screens 4 increase from top to bottom, and a plurality of collecting holes are opened on the outer wall of the recovery pipe 1, and the collecting holes are located beside the filter screen 4. The outer sides of the plurality of collecting holes are covered with a collecting cover 5, and a rotating support mechanism is provided between the collecting cover 5 and the pipe wall of the recovery pipe 1;

[0034] A rotating rod 6 is rotatably inserted at both ends of the back side of the recovery pipe 1. A connecting plate 7 is fixedly sleeved on one end of the rotating rod 6 located in the recovery pipe 1. A scraper 8 is fixedly provided at the bottom of the connecting plate 7. The bottom of the scraper 8 contacts and cooperates with the top of the filter screen 4. The longitudinal section of the scraper 8 is arranged in a pointed cone shape.

[0035] During the production of nano calcium powder, the device is arranged beside the production equipment, and the exhaust fan 3 is started, so that the exhaust fan 3 cooperates with the recovery pipe 1 and the air inlet pipe 2 to suck the external dust. After the dust enters the recovery pipe 1, the dust can be classified, filtered and collected through the setting of two filter screens 4 with different mesh sizes. After the dust falls on the surface of the filter screen 4, the rotating rod 6 cooperates with the connecting plate 7 to drive the scraper 8 to rotate, so that the scraper 8 can push the dust on the surface of the filter screen 4 through the collection hole into the collection cover 5. The dust is recovered by the collection cover 5, which can complete the dust collection and avoid the filter screen 4 from being blocked due to long-term filtration. After the dust recovery work is completed, the multiple collection covers 5 can be rotated, and the dust collected inside the collection cover 5 can be taken out and processed centrally.

[0036] Example 2

[0037] Embodiment 2 is based on Embodiment 1 in order to drive the two scrapers 8 to rotate and collect and clean the dust on the surface of the filter screen 4. Figure 1-2 As shown, the rear ends of the two rotating rods 6 are jointly provided with a reciprocating swing mechanism for driving the rotating rods 6 to rotate, and the reciprocating swing mechanism includes two synchronous wheels 9, which are respectively fixedly sleeved on the outer sides of the two rotating rods 6, and the outer sides of the two synchronous wheels 9 are jointly sleeved with a synchronous belt 10;

[0038] Two symmetrically arranged fixed plates 11 are fixed on the back side of the recovery pipe 1, and a reciprocating screw 12 is rotatably arranged between the two fixed plates 11. A sleeve 13 is threadedly sleeved on the rod wall of the reciprocating screw 12, and a rack 14 is fixedly arranged on the tube wall of the sleeve 13. The rack 14 is in contact with the tube wall of the recovery pipe 1, and the rack 14 is cooperated with a fan-shaped gear 15. The fan-shaped gear 15 is fixedly sleeved with the rotating rod 6. A motor 16 is fixedly arranged on the outer wall of the fixed plate 11, and the output end of the motor 16 passes through the fixed plate 11 and is fixedly connected to the reciprocating screw 12.

[0039] While the exhaust fan 3 is running, the motor 16 is turned on to drive the reciprocating screw 12 to rotate. At this time, through the sliding cooperation between the rack 14 and the wall of the recovery pipe 1, the sleeve 13 can drive the rack 14 to move back and forth, and through the meshing of the rack 14 and the fan gear 15, the fan gear 15 can drive the rotating rod 6 to rotate, and the two rotating rods 6 rotate synchronously with the cooperation of the two synchronous wheels 9 and the synchronous belt 10, so that the scraper 8 follows the rotating rod 6 to swing back and forth in the recovery pipe 6, which is convenient for effective recovery and cleaning of dust.

[0040] Example 3

[0041] Embodiment 3 is based on Embodiment 1-2, in order to facilitate the removal of dust in the collection cover 5 after the recycling work is completed, as shown in FIG. Figure 1 and Figure 3 As shown, a handle 25 is fixedly provided on the outer side of each of the plurality of collecting covers 5, and the rotating support mechanism comprises a supporting plate 17, which is fixedly connected to the recovery pipe 1, and a supporting rod 18 is rotatably penetrated inside the supporting plate 17, and a mounting plate 19 is fixedly sleeved on the rod wall of the supporting rod 18, and the mounting plate 19 is fixedly connected to the collecting cover 5, and a connecting pipe 20 is fixedly provided on the top of the collecting cover 5, and a plurality of positioning rings 21 are fixedly provided on the outer wall of the recovery pipe 1, and an insertion rod 22 is slidably penetrated on the top of the connecting pipe 20, and the upper end of the insertion rod 22 is inserted into the positioning ring 21, and a spring 23 is sleeved on the rod wall of the insertion rod 22, and the two ends of the spring 23 are respectively fixedly connected to the insertion rod 22 and the connecting pipe 20, and a sliding groove is provided on the tube wall of the connecting pipe 20, and a pull plate 24 is slidably penetrated in the sliding groove, and one end of the pull plate 24 is fixedly connected to the insertion rod 22.

[0042] After the recycling work is completed, multiple collection hoods 5 are operated in this way. First, the insertion rod 22 is pulled out from the positioning ring 21 through the pulling plate 24, and the spring 23 is squeezed. At this time, the handle 25 can be pulled, and under the support of the support plate 17 and the support rod 18, the mounting plate 19 drives the collection hood 5 to rotate, so that the collection hood 5 can be rotated to a horizontal position, which is convenient for the operator to centrally remove and process the dust pushed into the collection hood 5, thereby improving the dust collection effect and the convenience of operation.

[0043] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A nano-calcium powder dust recovery device, comprising a recovery pipe (1) and an air inlet pipe (2) connected to the top of the recovery pipe (1), characterized in that: The bottom of the recovery pipe (1) is connected to an exhaust fan (3), the inner wall of the recovery pipe (1) is fixedly provided with two filter screens (4), the outer wall of the recovery pipe (1) is provided with a plurality of collecting holes, the collecting holes are located beside the filter screens (4), the outer sides of the plurality of collecting holes are covered with collecting covers (5), and a rotating support mechanism is provided between the collecting cover (5) and the pipe wall of the recovery pipe (1); Both ends of the back side of the recovery pipe (1) are rotatably penetrated by a rotating rod (6), one end of the rotating rod (6) located in the recovery pipe (1) is fixedly sleeved with a connecting plate (7), a scraper (8) is fixedly provided at the bottom of the connecting plate (7), and the bottom of the scraper (8) is in contact with the top of the filter screen (4); The rear ends of the two rotating rods (6) are jointly provided with a reciprocating swing mechanism for driving the rotating rods (6) to rotate.

2. The nano calcium powder dust recovery device according to claim 1, characterized in that: The reciprocating swing mechanism comprises two synchronous wheels (9), the two synchronous wheels (9) are respectively fixedly sleeved on the outer sides of the two rotating rods (6), and the outer sides of the two synchronous wheels (9) are jointly sleeved with a synchronous belt (10); Two symmetrically arranged fixing plates (11) are fixedly provided on the back side of the recovery pipe (1), a reciprocating screw rod (12) is rotatably provided between the two fixing plates (11), a sleeve (13) is threadedly sleeved on the rod wall of the reciprocating screw rod (12), a rack (14) is fixedly provided on the tube wall of the sleeve (13), the rack (14) is matched with a fan-shaped gear (15), the fan-shaped gear (15) is fixedly sleeved with the rotating rod (6), a motor (16) is fixedly provided on the outer wall of the fixing plate (11), the output end of the motor (16) passes through the fixing plate (11) and is fixedly connected to the reciprocating screw rod (12).

3. The nano calcium powder dust recovery device according to claim 1, characterized in that: The rotation support mechanism comprises a support plate (17), the support plate (17) is fixedly connected to the recovery pipe (1), a support rod (18) is rotatably penetrated inside the support plate (17), a mounting plate (19) is fixedly sleeved on the rod wall of the support rod (18), and the mounting plate (19) is fixedly connected to the collection cover (5).

4. The nano calcium powder dust recovery device according to claim 1, characterized in that: A connecting pipe (20) is fixedly provided on the top of the collecting cover (5), a plurality of positioning rings (21) are fixedly provided on the outer wall of the recovery pipe (1), an insertion rod (22) is slidably passed through the top of the connecting pipe (20), the upper end of the insertion rod (22) is inserted into the positioning ring (21), a spring (23) is sleeved on the rod wall of the insertion rod (22), and the two ends of the spring (23) are respectively fixedly connected to the insertion rod (22) and the connecting pipe (20).

5. The nano calcium powder dust recovery device according to claim 4, characterized in that: The wall of the connecting tube (20) is provided with a sliding groove, a pull plate (24) is slidably inserted into the sliding groove, and one end of the pull plate (24) is fixedly connected to the insertion rod (22).

6. The nano calcium powder dust recovery device according to claim 2, characterized in that: The rack (14) is in contact with the wall of the recovery pipe (1).

7. The nano calcium powder dust recovery device according to claim 1, characterized in that: The mesh sizes of the two filter screens (4) increase from top to bottom.

8. The nano calcium powder dust recovery device according to claim 1, characterized in that: The longitudinal section of the scraper (8) is arranged in a pointed cone shape.

9. The nano calcium powder dust recovery device according to claim 1, characterized in that: A handle (25) is fixedly provided on the outer side of each of the plurality of collecting covers (5).

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