A kind of powder selection machine circulating closed-circuit grinding device

Abstract

The utility model relates to the technical field of powder selecting equipment, and concretely is a kind of powder selecting machine circulation closed circuit grinding device, including base, connecting cover, second baffle and connecting rod, the outer wall of base upper end is provided with cylinder, the outer wall of cylinder upper end side is inserted and is connected and is installed exhaust cylinder, the outer wall of cylinder side is inserted and is connected and is installed connecting cover, the second baffle is arranged in the connecting cover, the outer wall of second baffle lower end side is installed with support rod, the second baffle inside movable mounting has connecting rod, the outer wall of connecting rod one end is provided with connecting plate, the outer wall of connecting plate is fixed with cleaning piece, the outer wall of cylinder side is inserted and is connected and is installed feed hopper, it is guaranteed to the replacement of cleaning piece can be carried out under the condition of not stopping, guarantee the use fluency of equipment, can improve the output of material.

Description

Technical Field

[0001] This utility model relates to the field of powder classifier technology, specifically to a closed-loop grinding device for a powder classifier. Background Technology

[0002] The classifier is an important component of a closed-loop grinding system. Its function is to promptly separate qualified fine powder that has been ground to a certain particle size, while returning coarse powder for re-grinding. This prevents fine powder from being over-ground in the mill and avoids the buffering effect caused by adhesion of grinding media, thereby improving the mill's grinding efficiency. It can also adjust the particle size distribution of the finished product, prevent uneven particle size, and ensure the quality of the finished product.

[0003] CN215784035U discloses a vertical mill classifier with a circulating grinding function, including a machine body. A cover is installed on the upper front end of the machine body, and the cover is fixedly connected to the machine body by two nuts. A connecting block is installed on the rear end of the cover, a spring is installed on the rear end of the connecting block, a connecting plate is installed on the rear end of the spring, and a cleaning plate is installed on the rear end of the connecting plate. The cover is fixedly connected to the machine body by nuts, and a connecting block is installed on the inner side of the cover. A spring is installed on the inner side of the connecting block, and a cleaning plate is installed on the inner side of the spring. When the motor is started, the motor can drive the belt and the second rotating shaft to rotate. A turbine fan is fixedly installed at the lower end of the second rotating shaft. The turbine fan is fixedly connected to the filter tank, so that the second rotating shaft can drive the filter tank to rotate. The filter tank is movably connected to the cleaning plate. The rotation of the filter tank can cause the cleaning plate to shake, thereby shaking and dropping the powder accumulated in the filter tank to the bottom of the machine body, completing the cleaning of the filter tank and facilitating the maintenance of the machine body.

[0004] While the existing technology CN215784035U has many advantages in use, it still has the following problems: the disassembly of the cleaning plate is not perfect. Although the cleaning plate can be disassembled and replaced, the disassembly process will cause the cylinder to be connected to the external environment. This means that the disassembly of the cleaning plate must be carried out when the equipment is stopped, which affects the smooth operation of the equipment and the output of materials. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a closed-loop grinding device for a classifier.

[0006] The technical solution adopted by this utility model to solve its technical problem is a closed-loop grinding device for a classifier, including a base, a connecting cover, a second baffle, and a connecting rod. A cylinder is provided on the upper outer wall of the base. An exhaust duct is inserted and installed on one side of the upper outer wall of the cylinder. A connecting cover is inserted and installed on one side of the outer wall of the cylinder. A second baffle is provided inside the connecting cover. A support rod is installed on one side of the lower outer wall of the second baffle. A connecting rod is movably installed inside the second baffle. A connecting plate is provided on the outer wall of one end of the connecting rod. A cleaning plate is attached and fixed to the outer wall of the connecting plate. A feed hopper is inserted and installed on one side of the outer wall of the cylinder.

[0007] By adopting the above technical solution, the material can be ground and crushed inside the cylinder, and the crushed powder can be discharged through the exhaust duct. The second baffle blocks the inside of the connecting cover, and the connecting rod keeps the connecting plate and the cleaning plate in a relatively stable position. The cleaning plate can scrape and clean the outer wall of the filter cartridge.

[0008] Specifically, a grinding mechanism is provided on one side of the inner wall of the base, and the grinding mechanism is located inside the cylinder.

[0009] By adopting the above technical solution, the external power structure drives the grinding mechanism to rotate, and the grinding layer and grinding mechanism inside the cylinder can grind the material.

[0010] Specifically, a discharge pipe is inserted and installed on one side of the outer wall of the exhaust duct, and the discharge pipe is connected to the inside of the duct body through the exhaust duct. A filter cartridge is rotatably installed on one side of the inner wall of the exhaust duct.

[0011] By adopting the above technical solution, the external drive structure drives the impeller to rotate, and the impeller drives the air flow inside the cylinder, so that the powdered material flows upward with the air until the material is discharged through the discharge pipe, thus achieving the purpose of powder selection. The filter cartridge can also screen and filter the material.

[0012] Specifically, a storage cover is inserted and installed on one side of the lower end of the inner wall of the connecting cover, and a first baffle is rotatably installed inside the storage cover, with the support rod in contact with the outer wall of the first baffle.

[0013] By adopting the above technical solution, the storage cover can store the first baffle and keep the inner wall of the connecting cover flat. A torsion spring is provided between the first baffle and the storage cover. The torsional force of the torsion spring can drive the first baffle to rotate, which can adjust the use angle of the first baffle. The first baffle can also block the inside of the connecting cover, ensuring controlled communication inside the connecting cover. A sealing gasket is attached and fixed to the outside of the first baffle to maintain the seal between it and the storage cover. When the first baffle is in a vertical position inside the connecting cover, the sealing gasket can ensure the seal between the first baffle and the connecting cover.

[0014] Specifically, fixing rods are installed on both outer walls of the second baffle, and a cover plate is installed on the outer wall of one end of the fixing rod. The cover plate is located outside the connecting cover, and bolts are arranged in a rectangular array inside the cover plate. The cover plate is connected to the connecting cover by bolts.

[0015] By adopting the above technical solution, the cover plate is kept stable in the position outside the connecting cover by bolts, and the position of the second baffle inside the connecting cover is controlled by the fixing rod. The operator can adjust the position of the second baffle by moving the cover plate.

[0016] Specifically, a sealing ring is fixedly attached to the outer wall of the second baffle, and the sealing ring is in contact with the inner wall of the connecting cover.

[0017] By adopting the above technical solution, the sealing ring maintains the seal between the second baffle and the connecting cover, and can shield the inside of the connecting cover, ensuring the sealing performance of the second baffle to the inside of the connecting cover.

[0018] Specifically, a limiting plate is provided on one side of the outer wall of the connecting rod, and a spring is provided on one side of the outer wall of the limiting plate. The limiting plate is elastically connected to the second baffle through the spring.

[0019] By adopting the above technical solution, the limiting plate restricts the movement trajectory of the connecting rod, and the spring force pushes the limiting plate to maintain the stability of the connecting plate's position.

[0020] The beneficial effects of this utility model are:

[0021] (1) The powder classifier circulating closed-circuit grinding device described in this utility model has a grinding layer and grinding mechanism inside the cylinder that can grind the material to achieve the purpose of crushing the material. The material is discharged through the exhaust pipe and discharge pipe to achieve the purpose of powder selection. The cleaning plate can clean the material attached to the outer wall of the filter cylinder, maintain the filtration efficiency of the filter cylinder for the material, avoid the filter cylinder from being blocked, and ensure the cleaning ability of the cleaning plate for the filter cylinder, thus ensuring the filtration effect of the filter cylinder for the material.

[0022] (2) The classifier circulating closed-circuit grinding device of this utility model has a first baffle that can replace the second baffle to seal the inside of the connecting cover, preventing the powder inside the cylinder from moving out, ensuring the sealing of the inside of the connecting cover after the second baffle is disassembled, ensuring that the replacement of the cleaning plate can be carried out without stopping the machine, ensuring the smooth operation of the equipment, and improving the output of materials. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a cross-sectional schematic diagram of the cylindrical structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the cylindrical structure of this utility model;

[0026] Figure 3 This is a cross-sectional view of the connecting cover structure of this utility model;

[0027] Figure 4 This is an enlarged schematic diagram of the first baffle structure of this utility model;

[0028] Figure 5 This is an exploded view of the second baffle structure of this utility model.

[0029] In the diagram: 1. Base; 11. Cylinder; 12. Exhaust duct; 13. Feed hopper; 14. Grinding mechanism; 15. Filter cartridge; 16. Discharge pipe; 2. Connecting cover; 21. Storage cover; 22. First baffle; 23. Second baffle; 24. Sealing ring; 25. Fixing rod; 26. Support rod; 27. Cover plate; 3. Connecting rod; 31. Limiting plate; 32. Spring; 33. Connecting plate; 34. Cleaning plate. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0031] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the powder classifier circulating closed-circuit grinding device of this utility model includes a base 1, a connecting cover 2, a second baffle 23 and a connecting rod 3. A cylinder 11 is provided on the upper outer wall of the base 1. An exhaust duct 12 is inserted and installed on one side of the upper outer wall of the cylinder 11. A connecting cover 2 is inserted and installed on one side of the outer wall of the cylinder 11. A second baffle 23 is provided inside the connecting cover 2. A support rod 26 is installed on one side of the lower outer wall of the second baffle 23. A connecting rod 3 is movably installed inside the second baffle 23. A connecting plate 33 is provided on the outer wall of one end of the connecting rod 3. A cleaning plate 34 is attached and fixed to the outer wall of the connecting plate 33. A feed hopper 13 is inserted and installed on one side of the outer wall of the cylinder 11.

[0032] During use, the material can be ground and crushed inside the cylinder 11, and the crushed powder can be discharged through the exhaust duct 12. The second baffle 23 blocks the inside of the connecting cover 2, and the connecting rod 3 keeps the connecting plate 33 and the cleaning plate 34 in a relatively stable position. The cleaning plate 34 can scrape and clean the outer wall of the filter cartridge 15.

[0033] For the purpose of material grinding, for example, such as Figure 1 As shown, a grinding mechanism 14 is provided on one side of the inner wall of the base 1, and the grinding mechanism 14 is located inside the cylinder 11.

[0034] In use, the external power structure drives the grinding mechanism 14 to rotate, and the grinding layer inside the cylinder 11 and the grinding mechanism 14 can grind the material.

[0035] For example, in order to discharge materials, such as Figure 1 As shown, a discharge pipe 16 is inserted and installed on one side of the outer wall of the exhaust duct 12. The discharge pipe 16 is connected to the inside of the cylinder 11 through the exhaust duct 12. A filter cylinder 15 is rotatably installed on one side of the inner wall of the exhaust duct 12.

[0036] In use, the external drive structure drives the impeller to rotate, and the impeller drives the air flow inside the cylinder 11, so that the powdered material flows upward with the air until the material is discharged through the discharge pipe 16, thus achieving the purpose of powder selection. The filter cylinder 15 can also screen and filter the material.

[0037] To accommodate the first baffle 22, for example, as follows: Figure 3 As shown, a storage cover 21 is inserted and installed on one side of the lower end of the inner wall of the connecting cover 2. A first baffle 22 is rotatably installed inside the storage cover 21, and the support rod 26 is in contact with the outer wall of the first baffle 22.

[0038] In use, the storage cover 21 can store the first baffle 22 and keep the inner wall of the connecting cover 2 flat. A torsion spring is provided between the first baffle 22 and the storage cover 21. The torsional force of the torsion spring can drive the first baffle 22 to rotate, which can adjust the use angle of the first baffle 22. The first baffle 22 can block the inside of the connecting cover 2, ensuring controlled communication inside the connecting cover 2. A sealing gasket is attached to the outside of the first baffle 22 to maintain the seal between it and the storage cover 21. When the first baffle 22 is in a vertical state inside the connecting cover 2, the sealing gasket can ensure the seal between the first baffle 22 and the connecting cover 2.

[0039] To shield the connecting cover 2, for example, such as Figure 3 As shown, fixing rods 25 are installed on both outer walls of the second baffle 23. A cover plate 27 is installed on the outer wall of one end of the fixing rod 25. The cover plate 27 is located outside the connecting cover 2. Bolts arranged in a rectangular array are provided inside the cover plate 27, and the cover plate 27 is connected to the connecting cover 2 by bolts.

[0040] In use, the cover plate 27 is kept stable outside the connecting cover 2 by bolts, and the second baffle 23 is kept in a controlled position inside the connecting cover 2 by fixing rod 25. The operator can adjust the position of the second baffle 23 by moving the cover plate 27.

[0041] For sealing purposes, exemplarily, such as Figure 5 As shown, a sealing ring 24 is fixedly attached to the outer wall of the second baffle 23, and the sealing ring 24 is in contact with the inner wall of the connecting cover 2.

[0042] During use, the sealing ring 24 maintains the seal between the second baffle 23 and the connecting cover 2, and can shield the inside of the connecting cover 2, ensuring the sealing performance of the second baffle 23 on the inside of the connecting cover 2.

[0043] To maintain the position of the cleaning pad 34, for example, as follows: Figure 5 As shown, a limiting plate 31 is provided on one side of the outer wall of the connecting rod 3, and a spring 32 is provided on one side of the outer wall of the limiting plate 31. The limiting plate 31 is elastically connected to the second baffle 23 through the spring 32.

[0044] During use, the limiting plate 31 restricts the movement trajectory of the connecting rod 3, and the spring 32 pushes the limiting plate 31 to keep the connecting plate 33 in a stable position.

[0045] When this utility model is in use, the material enters the inside of the cylinder 11 through the feed hopper 13, and the external power structure drives the grinding mechanism 14 to rotate. The grinding layer inside the cylinder 11 and the grinding mechanism 14 can grind the material.

[0046] An external drive structure drives the impeller to rotate, which in turn causes air to flow inside the cylinder 11. This causes the powdered material to flow upward with the air until it is discharged through the exhaust duct 12 and the discharge pipe 16. The filter cartridge 15 can screen and filter the material to ensure that the size of the discharged powder meets the requirements.

[0047] When the filter cartridge 15 rotates with the impeller, the cleaning plate 34 can clean the material attached to the outer wall of the filter cartridge 15. The cleaning plate 34 is kept in continuous contact with the filter cartridge 15 by the limiting plate 31 and the spring 32 to prevent the gap between the cleaning plate 34 and the filter cartridge 15 from becoming larger due to wear.

[0048] The worker manually takes a wrench and turns the bolt to disengage the cover plate 27 from the connecting cover 2. The worker manually pulls the cover plate 27, and the second baffle 23 can be moved inside the connecting cover 2 through the fixing rod 25. The second baffle 23 can block the inside of the connecting cover 2 to prevent the powder inside the barrel from being discharged through the connecting cover 2. The support rod 26 restricts the first baffle 22 to keep the position of the first baffle 22 stable.

[0049] When the second baffle 23 and the connecting plate 33 are removed from the connecting cover 2, and the support plate is released from the restriction of the first baffle 22, the torsional force of the torsion spring can drive the first baffle 22 to rotate, so that the first baffle 22 is in a vertical state inside the connecting cover 2. The first baffle 22 can block the inside of the connecting cover 2. The first baffle 22 can replace the second baffle 23 to seal the inside of the connecting cover 2, preventing the powder inside the cylinder 11 from moving out.

[0050] It should be noted that this utility model is a closed-circuit grinding device for a classifier. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A closed-loop grinding device for a classifier, characterized in that, The device includes a base (1), a connecting cover (2), a second baffle (23), and a connecting rod (3). The upper outer wall of the base (1) is provided with a cylinder (11). An exhaust duct (12) is inserted into one side of the upper outer wall of the cylinder (11). The connecting cover (2) is inserted into one side of the outer wall of the cylinder (11). The second baffle (23) is provided inside the connecting cover (2). A support rod (26) is installed on one side of the lower outer wall of the second baffle (23). The connecting rod (3) is movably installed inside the second baffle (23). A connecting plate (33) is provided on the outer wall of one end of the connecting rod (3). A cleaning plate (34) is attached and fixed to the outer wall of the connecting plate (33). A feed hopper (13) is inserted into one side of the outer wall of the cylinder (11).

2. The closed-loop grinding device for classifiers according to claim 1, characterized in that, A grinding mechanism (14) is provided on one side of the inner wall of the base (1), and the grinding mechanism (14) is located inside the cylinder (11).

3. The closed-loop grinding device for a classifier according to claim 1, characterized in that, A discharge pipe (16) is inserted into the outer wall of one side of the exhaust duct (12). The discharge pipe (16) is connected to the inside of the cylinder (11) through the exhaust duct (12). A filter cylinder (15) is rotatably installed on one side of the inner wall of the exhaust duct (12).

4. The closed-loop grinding device for a classifier according to claim 1, characterized in that, A storage cover (21) is inserted and installed on one side of the lower end of the inner wall of the connecting cover (2). A first baffle (22) is rotatably installed inside the storage cover (21). The support rod (26) is in contact with the outer wall of the first baffle (22).

5. The closed-loop grinding device for a classifier according to claim 1, characterized in that, The second baffle (23) has a fixing rod (25) installed on both sides of the outer wall. A cover plate (27) is installed on the outer wall of one end of the fixing rod (25). The cover plate (27) is located outside the connecting cover (2). The cover plate (27) is provided with bolts arranged in a rectangular array inside, and the cover plate (27) is connected to the connecting cover (2) by bolts.

6. The closed-loop grinding device for a classifier according to claim 1, characterized in that, A sealing ring (24) is fixed to the outer wall of the second baffle (23), and the sealing ring (24) is in contact with the inner wall of the connecting cover (2).

7. The closed-loop grinding device for a classifier according to claim 1, characterized in that, A limiting plate (31) is provided on one side of the outer wall of the connecting rod (3), and a spring (32) is provided on one side of the outer wall of the limiting plate (31). The limiting plate (31) is elastically connected to the second baffle (23) through the spring (32).

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