Sealing structure of powder concentrator

Abstract

The utility model relates to the technical field of powder selecting machines, in particular to a powder selecting machine sealing structure which comprises a powder selecting machine body, a feeding port, a first motor, an impeller and a finished product collecting box, the feeding port is fixedly connected to the front end of the powder selecting machine body, and a first supporting assembly is fixedly connected to the inner side of the powder selecting machine body. A fixing plate, a second motor and a rotating rod are arranged, a rotating plate, a first through hole and a second through hole form an air locking structure, air flow drives finished lime powder to enter a finished lime powder collecting box through a hole where the first through hole and the second through hole coincide, and the second motor drives the rotating plate to rotate through the rotating rod; and when the gap is small, the airflow is enhanced, at the moment, the rotating speed of the first motor can be reduced, the airflow is reduced, the fineness of the lime powder is kept, then the loss of the first motor is reduced, and the service life of the first motor is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of powder classifiers, in particular to a sealing structure of a powder classifier. Background Art

[0002] When cement powder raw materials are calcined in a kiln, they need to be selected first to make the cement powder particles uniform in size. The cement powder is selected using a powder selector, and the cement powder enters the powder selection chamber through the feed port of the powder selector. The cement powder is then ground and broken into smaller particles by a crusher. The motor then drives the impeller to rotate, forming an airflow that drives the smaller particles to rise and enter the finished product area, preparing for subsequent kiln calcination.

[0003] The speed of the impeller rotation should be adjusted according to the requirements of the finished product fineness. When the finished product fineness requirements are high, the impeller speed should be increased. Unqualified particles will slow down after colliding with the impeller blades and separate from the sorting airflow. Under the action of their own gravity, they fall into the crusher and are crushed again. Qualified finished product particles pass through the rotor blades and enter the finished product dust collecting device with the airflow. However, the sealing structure of the traditional powder classifier cannot seal the sorting area and the finished product area well, and it is easy to run coarse, thereby reducing the quality of cement powder in the finished product area and affecting the effect of subsequent kiln calcination. Therefore, in response to the above problems, we proposed a powder classifier sealing structure. Utility Model Content

[0004] The utility model aims to provide a powder classifier sealing structure to solve the problem that the traditional powder classifier sealing structure cannot seal the classification area and the finished product area well, is prone to coarseness, and thus reduces the quality of cement powder in the finished product area and affects the subsequent kiln calcination effect.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A powder selection machine sealing structure comprises a powder selection machine body, a feed port, a first motor, an impeller and a finished product collection box, wherein the front end of the powder selection machine body is fixedly connected with the feed port, the inner side of the powder selection machine body is fixedly connected with a first support assembly, the inner side of the first support assembly is fixedly connected with a first motor, the end of the first motor main shaft is fixedly connected with an impeller, the inner side of the left end of the powder selection machine body is fixedly connected with a first sealing ring, the inner side of the left end of the powder selection machine body is fixedly connected with a first magnet, a connecting pipe is arranged on the inner side of the first sealing ring, the outer side of the right end of the connecting pipe is fixedly connected with a first sealing assembly, the inner side of the right end of the first sealing assembly is fixedly connected with a second magnet, and the connecting pipe is fixedly connected with a first sealing assembly. A second sealing assembly is fixedly connected to the outer side of the left end of the pipeline, a third magnet is fixedly connected to the inner side of the left end of the second sealing assembly, a second sealing ring is fixedly connected to the inner side of the right end of the finished product collection box, a fourth magnet is fixedly connected to the inner side of the right end of the finished product collection box, a fixing plate is fixedly connected to the inner side of the connecting pipe, a second supporting assembly is fixedly connected to the inner side of the connecting pipe, a placement box is fixedly connected to the inner side of the second supporting assembly, a second motor is fixedly connected to the inner side of the placement box, a rotating rod is fixedly connected to the end of the main shaft of the second motor, a rotating plate is fixedly connected to the right end of the rotating rod, a first through hole is opened on the inner side of the fixing plate, and a second through hole is opened on the inner side of the rotating plate.

[0007] Preferably, the powder classifier body is hollow inside, the first support assembly and the second support assembly have the same structure, and the impeller is located inside the powder classifier body.

[0008] Preferably, the first sealing ring is annular in shape, the first magnet and the second magnet are magnetically attracted to each other, and the outer side of the right end of the connecting pipe and the inner side of the first sealing ring are tightly fitted.

[0009] Preferably, the first sealing component has a circular ring shape, the right end surface of the first sealing component is tightly fitted with the left end surface of the powder classifier body, the left end surface of the second sealing component is tightly fitted with the right end surface of the finished product collection box, the third magnet and the fourth magnet are magnetically attracted to each other, and the outer side of the left end of the connecting pipe is tightly fitted with the inner side of the second sealing ring.

[0010] Preferably, the fixed plate is circular in shape, the placement box is hollow inside, the rotating plate is circular in shape, the right end surface of the rotating plate and the left end surface of the fixed plate are fitted together, and the inner diameter of the first through hole is larger than the inner diameter of the second through hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by arranging the first sealing ring, the first magnet, the first sealing assembly, the second magnet, the second sealing assembly, the third magnet, the second sealing ring and the fourth magnet, the powder selector body and the finished product collection box are connected through the connecting pipe, the first sealing ring seals the connecting part between the connecting pipe and the powder selector body, the first magnet and the second magnet are magnetically attracted to each other so that the right end surface of the first sealing assembly and the left end surface of the powder selector body are tightly fitted, and the connecting part between the connecting pipe and the powder selector body is sealed again, so that the sealing effect of the connecting pipe and the powder selector body is better, the second sealing ring seals the connecting part between the connecting pipe and the finished product collection box, the third magnet and the fourth magnet are magnetically attracted to each other so that the left end surface of the second sealing assembly and the right end surface of the finished product collection box are tightly fitted, and the connecting part between the connecting pipe and the finished product collection box is sealed again The sealing is performed to improve the sealing effect of the connecting pipeline and the finished product collection box, thereby improving the sealing effect between the powder selector body and the finished product collection box as a whole, thereby reducing the coarsening of cement powder, improving the quality of cement powder products, and enhancing the effect of subsequent kiln calcination. A wind locking structure is formed by arranging a fixed plate, a second motor, a rotating rod, a rotating plate, a first through hole, and a second through hole. The airflow drives the finished lime powder to enter the finished product collection box through the overlapped gap between the first through hole and the second through hole. The second motor drives the rotating plate to rotate through the rotating rod, thereby adjusting the size of the overlapped gap between the first through hole and the finished product collection box, thereby controlling the size of the airflow. When the gap is small, the airflow is enhanced. At this time, the speed of the first motor can be reduced to reduce the airflow, maintain the fineness of the lime powder, thereby reducing the loss to the first motor and extending the service life of the first motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at B;

[0016] Figure 4 For this utility model Figure 1 Schematic diagram of the structure at C;

[0017] Figure 5 This is a bottom view structural diagram of the first support assembly of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the first sealing component of the utility model;

[0019] Figure 7 This is a left-side structural schematic diagram of the second supporting assembly of the utility model;

[0020] Figure 8 This is a schematic diagram of the first through hole structure of the utility model;

[0021] Fig. 9 This is a schematic diagram of the second through hole structure of the utility model.

[0022] In the figure: 1. powder selection machine body; 2. feed inlet; 3. first support assembly; 4. first motor; 5. impeller; 6. first sealing ring; 7. first magnet; 8. connecting pipe; 9. first sealing assembly; 10. second magnet; 11. second sealing assembly; 12. third magnet; 13. finished product collection box; 14. second sealing ring; 15. fourth magnet; 16. fixed plate; 17. second support assembly; 18. placement box; 19. second motor; 20. rotating rod; 21. rotating plate; 22. first through hole; 23. second through hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-9 , the utility model provides a technical solution:

[0025] A powder selection machine sealing structure comprises a powder selection machine body 1, a feed port 2, a first motor 4, an impeller 5 and a finished product collection box 13, wherein the front end of the powder selection machine body 1 is fixedly connected to the feed port 2, the inner side of the powder selection machine body 1 is fixedly connected to the first support assembly 3, the inner side of the first support assembly 3 is fixedly connected to the first motor 4, the end of the main shaft of the first motor 4 is fixedly connected to the impeller 5, the inner side of the left end of the powder selection machine body 1 is fixedly connected to the first sealing ring 6, the inner side of the left end of the powder selection machine body 1 is fixedly connected to the first magnet 7, a connecting pipe 8 is arranged inside the first sealing ring 6, the outer side of the right end of the connecting pipe 8 is fixedly connected to the first sealing assembly 9, the inner side of the right end of the first sealing assembly 9 is fixedly connected to the second magnet 10, the outer side of the left end of the connecting pipe 8 is fixedly connected to the A second sealing component 11 is connected, a third magnet 12 is fixedly connected to the inner side of the left end of the second sealing component 11, a second sealing ring 14 is fixedly connected to the inner side of the right end of the finished product collection box 13, a fourth magnet 15 is fixedly connected to the inner side of the right end of the finished product collection box 13, a fixing plate 16 is fixedly connected to the inner side of the connecting pipe 8, a second supporting component 17 is fixedly connected to the inner side of the connecting pipe 8, a placement box 18 is fixedly connected to the inner side of the second supporting component 17, a second motor 19 is fixedly connected to the inner side of the placement box 18, a rotating rod 20 is fixedly connected to the end of the main shaft of the second motor 19, a rotating plate 21 is fixedly connected to the right end of the rotating rod 20, a first through hole 22 is opened on the inner side of the fixed plate 16, and a second through hole 23 is opened on the inner side of the rotating plate 21.

[0026] The powder selecting machine body 1 is hollow inside, the first supporting assembly 3 and the second supporting assembly 17 have the same structure, the impeller 5 is located inside the powder selecting machine body 1, the first sealing ring 6 is annular in shape, the first magnet 7 and the second magnet 10 are magnetically attracted to each other, the outer side of the right end of the connecting pipe 8 is tightly fitted with the inner side of the first sealing ring 6, the first sealing assembly 9 is annular in shape, the right end surface of the first sealing assembly 9 is tightly fitted with the left end surface of the powder selecting machine body 1, the left end surface of the second sealing assembly 11 is tightly fitted with the right end surface of the finished product collecting box 13, the third magnet 12 and the fourth magnet 15 are magnetically attracted to each other, and the left end surface of the connecting pipe 8 is tightly fitted. The outer side of the end and the inner side of the second sealing ring 14 fit closely, the fixed plate 16 is circular in shape, the placement box 18 is hollow inside, the rotating plate 21 is circular in shape, the right end surface of the rotating plate 21 fits the left end surface of the fixed plate 16, the inner diameter of the first through hole 22 is larger than the inner diameter of the second through hole 23, the front end of the powder selector body 1 is fixedly connected with the feed port 2, the inner side of the powder selector body 1 is fixedly connected with the first supporting assembly 3, the inner side of the first supporting assembly 3 is fixedly connected with the first motor 4, the end of the main shaft of the first motor 4 is fixedly connected with the impeller 5, and the inner side of the left end of the powder selector body 1 is fixedly connected with the first sealing ring 6, which is convenient for design. The first sealing ring 6, the first magnet 7, the first sealing component 9, the second magnet 10, the second sealing component 11, the third magnet 12, the second sealing ring 14 and the fourth magnet 15 are arranged, the powder selector body 1 and the finished product collection box 13 are connected through the connecting pipe 8, the first sealing ring 6 seals the connection between the connecting pipe 8 and the powder selector body 1, the first magnet 7 and the second magnet 10 are magnetically attracted to each other so that the right end surface of the first sealing component 9 and the left end surface of the powder selector body 1 are closely fitted, and the connection between the connecting pipe 8 and the powder selector body 1 is sealed again, so that the connecting pipe 8 and the powder selector body 1 are The sealing effect of the body 1 is better, the second sealing ring 14 seals the connection between the connecting pipe 8 and the finished product collection box 13, and the magnetic attraction between the third magnet 12 and the fourth magnet 15 makes the left end surface of the second sealing component 11 and the right end surface of the finished product collection box 13 fit closely, and the connection between the connecting pipe 8 and the finished product collection box 13 is sealed again, so that the sealing effect of the connecting pipe 8 and the finished product collection box 13 is better, and then the sealing effect between the powder selector body 1 and the finished product collection box 13 is better as a whole, thereby reducing the coarseness of cement powder, improving the quality of cement powder products, and enhancing the effect of subsequent kiln calcination;A first magnet 7 is fixedly connected to the inner side of the left end of the powder selection machine body 1, a connecting pipe 8 is provided on the inner side of the first sealing ring 6, a first sealing component 9 is fixedly connected to the outer side of the right end of the connecting pipe 8, a second magnet 10 is fixedly connected to the inner side of the right end of the first sealing component 9, a second sealing component 11 is fixedly connected to the outer side of the left end of the connecting pipe 8, a third magnet 12 is fixedly connected to the inner side of the left end of the second sealing component 11, a second sealing ring 14 is fixedly connected to the inner side of the right end of the finished product collection box 13, a fourth magnet 15 is fixedly connected to the inner side of the right end of the finished product collection box 13, a fixing plate 16 is fixedly connected to the inner side of the connecting pipe 8, and the fixing plate 16, the second motor 19, the rotating rod 20, the rotating plate 21, the first through hole 22 and the second through hole 23 are conveniently arranged to form a wind locking structure, and the airflow drives the finished lime powder through the hole where the first through hole 22 and the second through hole 23 overlap. The gap enters the finished product collection box 13, and the second motor 19 drives the rotating plate 21 to rotate through the rotating rod 20, thereby adjusting the size of the overlapped pores between the first through hole 22 and the finished product collection box 13, thereby controlling the size of the airflow. When the gap is small, the airflow is enhanced. At this time, the rotation speed of the first motor 4 can be reduced to reduce the airflow, maintain the fineness of the lime powder, and thus reduce the loss of the first motor 4 and extend the service life of the first motor 4; the second support assembly 17 is fixedly connected to the inside of the connecting pipe 8, the placement box 18 is fixedly connected to the inside of the second support assembly 17, the second motor 19 is fixedly connected to the inside of the placement box 18, the rotating rod 20 is fixedly connected to the end of the main shaft of the second motor 19, the right end of the rotating rod 20 is fixedly connected to the rotating plate 21, the first through hole 22 is opened inside the fixed plate 16, and the second through hole 23 is opened inside the rotating plate 21. ;

[0027] Working process: When the device is in use, the external power supply is energized, the front end of the powder classifier body 1 is fixedly connected with a feed port 2, the lime powder enters the powder classifier body 1 through the feed port 2, and is crushed and ground, the inside of the powder classifier body 1 is fixedly connected with a first support assembly 3, the inside of the first support assembly 3 is fixedly connected with a first motor 4, the end of the main shaft of the first motor 4 is fixedly connected with an impeller 5, the first motor 4 is started, the first motor 4 drives the impeller 5 to rotate, the impeller 5 drives the surrounding air to rotate to form an airflow, and the airflow drives the lime powder product to rise, the inside of the left end of the powder classifier body 1 is fixedly connected with a first sealing ring 6, the inside of the left end of the powder classifier body 1 is fixedly connected with a first magnet 7, the outside of the right end of the connecting pipe 8 is fixedly connected with a first sealing assembly 9, the first sealing ring 6 is fixedly connected with a first magnet 7, the outside of the right end of the connecting pipe 8 is fixedly connected with a first sealing assembly 9, and the first sealing ring 6 is fixedly connected with a first magnet 7. A second magnet 10 is fixedly connected to the inner side of the right end of the sealing component 9, a second sealing component 11 is fixedly connected to the outer side of the left end of the connecting pipe 8, a third magnet 12 is fixedly connected to the inner side of the left end of the second sealing component 11, a second sealing ring 14 is fixedly connected to the inner side of the right end of the finished product collection box 13, a fourth magnet 15 is fixedly connected to the inner side of the right end of the finished product collection box 13, the powder selection machine body 1 and the finished product collection box 13 are connected through the connecting pipe 8, the first sealing ring 6 seals the connection between the connecting pipe 8 and the powder selection machine body 1, the first magnet 7 and the second magnet 10 are magnetically attracted to each other so that the right end surface of the first sealing component 9 and the left end surface of the powder selection machine body 1 are closely fitted, and the connection between the connecting pipe 8 and the powder selection machine body 1 is sealed again so that the connecting pipe 8 and the powder selector body 1 have a better sealing effect, the second sealing ring 14 seals the connection between the connecting pipe 8 and the finished product collection box 13, the third magnet 12 and the fourth magnet 15 are magnetically attracted to each other so that the left end surface of the second sealing component 11 and the right end surface of the finished product collection box 13 are closely fitted, and the connection between the connecting pipe 8 and the finished product collection box 13 is sealed again, so that the sealing effect of the connecting pipe 8 and the finished product collection box 13 is better, and then the sealing effect between the powder selector body 1 and the finished product collection box 13 as a whole is better, thereby reducing the coarseness of cement powder, improving the quality of cement powder products, and enhancing the effect of subsequent kiln calcination. Then the finished lime powder enters the inside of the connecting pipe 8, and the inner side of the connecting pipe 8 is fixedly connected with a fixing plate 16, and the inner side of the fixing plate 16 A first through hole 22 is provided, a second support assembly 17 is fixedly connected to the inner side of the communicating pipe 8, a placement box 18 is fixedly connected to the inner side of the second support assembly 17, a second motor 19 is fixedly connected to the inner side of the placement box 18, the second support assembly 17 and the placement box 18 support and protect the second motor 19, a rotating rod 20 is fixedly connected to the end of the main shaft of the second motor 19, a rotating plate 21 is fixedly connected to the right end of the rotating rod 20, a second through hole 23 is provided on the inner side of the rotating plate 21, the right end surface of the rotating plate 21 is fitted with the left end surface of the fixed plate 16, the inner diameter of the first through hole 22 is larger than the inner diameter of the second through hole 23, the fixed plate 16, the second motor 19, the rotating rod 20, the rotating plate 21, the first through hole 22 and the second through hole 23 constitute a wind locking structure,The airflow drives the finished lime powder to enter the finished product collection box 13 through the overlapped gap between the first through hole 22 and the second through hole 23. The second motor 19 drives the rotating plate 21 to rotate through the rotating rod 20, thereby adjusting the size of the overlapped gap between the first through hole 22 and the finished product collection box 13, thereby controlling the size of the airflow. When the gap is small, the airflow is enhanced. At this time, the speed of the first motor 4 can be reduced to reduce the airflow, maintain the fineness of the lime powder, and thereby reduce the loss of the first motor 4 and extend the service life of the first motor 4.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder classifier sealing structure, comprising a powder classifier body (1), a feed port (2), a first motor (4), an impeller (5) and a finished product collection box (13), characterized in that: The front end of the powder classifier body (1) is fixedly connected to a feed port (2); the inner side of the powder classifier body (1) is fixedly connected to a first support assembly (3); the inner side of the first support assembly (3) is fixedly connected to a first motor (4); the end of the main shaft of the first motor (4) is fixedly connected to an impeller (5); the inner side of the left end of the powder classifier body (1) is fixedly connected to a first sealing ring (6); the inner side of the left end of the powder classifier body (1) is fixedly connected to a first magnet (7); the inner side of the first sealing ring (6) is provided with a connecting pipe (8); the outer side of the right end of the connecting pipe (8) is fixedly connected to a first sealing assembly (9); the inner side of the right end of the first sealing assembly (9) is fixedly connected to a second magnet (10); the outer side of the left end of the connecting pipe (8) is fixedly connected to a second sealing assembly (11); the second sealing assembly (11) A third magnet (12) is fixedly connected to the inner side of the left end, a second sealing ring (14) is fixedly connected to the inner side of the right end of the finished product collection box (13), a fourth magnet (15) is fixedly connected to the inner side of the right end of the finished product collection box (13), a fixed plate (16) is fixedly connected to the inner side of the connecting pipe (8), a second supporting assembly (17) is fixedly connected to the inner side of the connecting pipe (8), a placement box (18) is fixedly connected to the inner side of the second supporting assembly (17), a second motor (19) is fixedly connected to the inner side of the placement box (18), a rotating rod (20) is fixedly connected to the end of the main shaft of the second motor (19), a rotating plate (21) is fixedly connected to the right end of the rotating rod (20), a first through hole (22) is provided on the inner side of the fixed plate (16), and a second through hole (23) is provided on the inner side of the rotating plate (21).

2. A powder classifier sealing structure according to claim 1, characterized in that: The powder classifier body (1) is hollow inside, the first support assembly (3) and the second support assembly (17) have the same structure, and the impeller (5) is located inside the powder classifier body (1).

3. A powder classifier sealing structure according to claim 1, characterized in that: The first sealing ring (6) has a circular shape, the first magnet (7) and the second magnet (10) are magnetically attracted to each other, and the outer side of the right end of the connecting pipe (8) is tightly fitted to the inner side of the first sealing ring (6).

4. A powder classifier sealing structure according to claim 1, characterized in that: The first sealing component (9) has a circular shape, the right end surface of the first sealing component (9) is tightly fitted with the left end surface of the powder selection machine body (1), the left end surface of the second sealing component (11) is tightly fitted with the right end surface of the finished product collection box (13), the third magnet (12) and the fourth magnet (15) are magnetically attracted to each other, and the outer side of the left end of the connecting pipe (8) is tightly fitted with the inner side of the second sealing ring (14).

5. The powder classifier sealing structure according to claim 1, characterized in that: The fixed plate (16) is circular in shape, the placement box (18) is hollow inside, the rotating plate (21) is circular in shape, the right end surface of the rotating plate (21) is in contact with the left end surface of the fixed plate (16), and the inner diameter of the first through hole (22) is greater than the inner diameter of the second through hole (23).

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