Jet flow grading device for rare earth polishing powder

Abstract

The utility model discloses a rare earth polishing powder jet flow grading device which comprises a supporting plate, a plurality of material boxes are fixedly connected in the supporting plate, inclined pipes are fixedly connected between the material boxes, the bottom ends of the material boxes are fixedly connected with discharging hoppers, the bottom ends of the discharging hoppers are fixedly connected with limiting plates, and the limiting plates are fixedly connected with the discharging hoppers. A fixing plate is fixedly connected to the lower portion of the middle of the discharging hopper, a material storage bag is arranged between the fixing plate and the limiting plate in a sleeving mode, a material pipe is fixedly connected to the bottom end of the limiting plate, a filter box is fixedly connected to the bottom end of the material pipe, and a conical plate is fixedly connected to the bottom end of the interior of the filter box; and an air pump is fixedly connected between the interior of the conical plate and the filter box. By arranging the material storage bag, the fixing plate, the limiting plate and the bolt, the top end of the material storage bag needs to be fixed to the fixing plate and the limiting plate in an abutting mode, after the material storage bag is located above the limiting plate, the bolt rotates and abuts against the material storage bag after rotation, the bolt is fastened, and fixing of a bag body is completed.

Description

Technical Field

[0001] This utility model relates to the technical field of jet classification devices, and in particular to a jet classification device for rare earth polishing powder. Background Technology

[0002] Jet classifiers are based on the Coanda effect and are used to classify and screen powdered raw materials. When processing rare earth polishing powder for semiconductor wafers, jet classifiers are needed to sort the polishing powder. When workers use bags to collect the sorted polishing powder...

[0003] When applying for this invention, the applicant, through a search, discovered a Chinese patent that discloses a "jet classification device for rare earth polishing powder for semiconductor wafers," application number "202220592896.7." This patent mainly uses a limiting structure to temporarily restrict the position of the bag when collecting polishing powder discharged from the discharge pipe, minimizing the possibility of the bag tipping over and the polishing powder spilling onto the ground, thus facilitating operation for workers. However, the polishing powder generates significant dust during collection, which floats out of the bag and affects the working environment. Therefore, based on the applicant's invention, a jet classification device for rare earth polishing powder has been invented, solving the problem of significant dust generation and floating out of the bag during collection, thus affecting the working environment. Utility Model Content

[0004] The purpose of this invention is to provide a jet grading device for rare earth polishing powder, which solves the problem that polishing powder generates a lot of dust during the collection process, causing it to float out of the bag and thus affecting the usage environment.

[0005] To achieve the above objectives, a jet grading device for rare earth polishing powder is provided, comprising: a support plate, a plurality of material boxes fixedly connected inside the support plate, inclined tubes fixedly connected between the material boxes, a discharge hopper fixedly connected to the bottom end of the material boxes, a limiting plate fixedly connected to the bottom end of the discharge hopper, a fixing plate fixedly connected to the lower middle part of the discharge hopper, a storage bag sleeved between the fixing plate and the limiting plate, a material pipe fixedly connected to the bottom end of the limiting plate, a filter box fixedly connected to the bottom end of the material pipe, a conical plate fixedly connected to the bottom end of the filter box, a blower fixedly connected between the inside of the conical plate and the filter box, and an exhaust pipe fixedly connected to the output end of the blower.

[0006] According to the jet grading device for rare earth polishing powder, the fixed plate is internally threaded with several bolts, and the bolts and the storage bag are in contact with each other.

[0007] According to the jet grading device for rare earth polishing powder, a plurality of support frames are fixedly connected to the bottom end of the limiting plate, and a support base is fixedly connected to the bottom end of the support frame.

[0008] According to the jet grading device for rare earth polishing powder, support legs are fixedly connected to the four corners of the bottom end of the support plate.

[0009] According to the jet grading device for rare earth polishing powder, the surface of the filter box is made of non-woven fabric.

[0010] The above-mentioned solution has the following beneficial effects:

[0011] This utility model is equipped with a storage bag, a fixing plate, a limiting plate, and bolts. The top of the storage bag needs to be fixed in contact with the fixing plate and the limiting plate. When the storage bag is above the limiting plate, the bolts rotate and then contact the storage bag to achieve bolt tightening and fix the bag body. This structure can increase the fixation of the storage bag and prevent it from falling or loosening.

[0012] This utility model is equipped with an air pump, a discharge hopper, a support frame, an exhaust pipe, and a filter box. The discharge hopper discharges the material, while the air pump creates a vacuum inside the support frame, effectively storing the polishing powder inside the bag. The air pump also discharges the gas through the exhaust pipe. Due to the height of the filter box, dust adsorbed by the filter box will fall to the bottom of the storage bag, thus storing the material and preventing it from being stirred up.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a cross-sectional front view of a jet grading device for rare earth polishing powder according to the present invention.

[0016] Figure 2 This is a breakdown diagram of the hopper and storage bag of a jet grading device for rare earth polishing powder according to this utility model.

[0017] Figure 3 This utility model Figure 1 Enlarged view of point A in the image;

[0018] Figure 4 This diagram illustrates the structure of the storage bag used in the jet grading device for rare earth polishing powder according to this utility model.

[0019] Legend:

[0020] The components are: 1. Support plate; 2. Support leg; 3. Material box; 4. Inclined tube; 5. Support base; 6. Discharge hopper; 7. Fixing plate; 8. Limiting plate; 9. Storage bag; 10. Filter box; 11. Air pump; 12. Conical plate; 13. Material pipe; 14. Support frame; 15. Bolt; 16. Exhaust pipe. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-4 This utility model discloses a jet grading device for rare earth polishing powder, comprising: a support plate 1, with several material boxes 3 fixedly connected inside the support plate 1, inclined tubes 4 fixedly connected between the material boxes 3, and a discharge hopper 6 fixedly connected to the bottom end of each material box 3. The rare earth polishing powder, after jet grading, is discharged through the discharge hopper 6. The discharged material flows through a material pipe 13 to the outside of a storage bag 9. A limiting plate 8 is fixedly connected to the bottom end of the discharge hopper 6. Since the top of the storage bag 9 needs to be fixed in contact with the fixing plate 7 and the limiting plate 8, a fixing plate 7 is fixedly connected to the lower middle part of the discharge hopper 6. A storage bag 9 is fitted between the fixed plate 7 and the limiting plate 8. A material pipe 13 is fixedly connected to the bottom end of the limiting plate 8. A filter box 10 is fixedly connected to the bottom end of the material pipe 13. The air pump 11 discharges the gas outward through the exhaust pipe 16. Due to the certain height of the filter box 10, when it is attracted by dust, it will fall to the bottom end of the storage bag 9, thus completing the storage of the material and preventing it from being blown up. A conical plate 12 is fixedly connected to the bottom of the inside of the filter box 10. An air pump 11 is fixedly connected between the inside of the conical plate 12 and the filter box 10. An exhaust pipe 16 is fixedly connected to the output end of the air pump 11. The surface of the filter box 10 is made of non-woven fabric.

[0023] The fixed plate 7 has several bolts 15 connected to its internal threads. When the storage bag 9 is above the limiting plate 8, the bolts 15 rotate and then come into contact with the storage bag 9, thus tightening the bolts and fixing the bag. The bolts 15 and the storage bag 9 are in contact with each other. Several support frames 14 are fixedly connected to the bottom of the limiting plate 8. The air pump 11 makes the internal structure of the support frame 14 vacuum, which can effectively store the polishing powder inside the bag. The bottom of the support frame 14 is fixedly connected to the support base 5. The four corners of the bottom of the support plate 1 are fixedly connected to the support legs 2.

[0024] Working principle: During use, the rare earth polishing powder after jet classification is discharged through the discharge hopper 6. The discharged material flows through the material pipe 13 to the outside of the storage bag 9. Since the top of the storage bag 9 needs to be fixed by the fixing plate 7 and the limiting plate 8, when the storage bag 9 is above the limiting plate 8, the bolt 15 is rotated. After rotation, it contacts the storage bag 9, achieving bolt tightening and fixing the bag body. Then, the discharge hopper 6 discharges the material. The air pump 11 creates a vacuum state inside the support frame 14, which can effectively store the polishing powder inside the bag body. The air pump 11 discharges the gas outward through the exhaust pipe 16. Due to the certain height of the filter box 10, the dust will fall to the bottom of the storage bag 9 after being adsorbed, thus completing the storage of the material and preventing it from being blown away.

[0025] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A jet classification device for rare earth polishing powder, comprising: The support plate (1) is characterized in that a plurality of material boxes (3) are fixedly connected inside the support plate (1), and inclined tubes (4) are fixedly connected between the material boxes (3). A discharge hopper (6) is fixedly connected to the bottom end of the material box (3). A limiting plate (8) is fixedly connected to the bottom end of the discharge hopper (6). A fixing plate (7) is fixedly connected to the lower middle part of the discharge hopper (6). A storage bag (9) is sleeved between the fixing plate (7) and the limiting plate (8). A material pipe (13) is fixedly connected to the bottom end of the limiting plate (8). A filter box (10) is fixedly connected to the bottom end of the material pipe (13). A conical plate (12) is fixedly connected to the bottom end of the filter box (10). A wind pump (11) is fixedly connected between the inside of the conical plate (12) and the filter box (10). An exhaust pipe (16) is fixedly connected to the output end of the wind pump (11).

2. The fluid classifying device of a rare earth polishing powder according to claim 1, characterized in that, The fixing plate (7) has several bolts (15) internally threaded.

3. The fluidic classification device of a rare earth polishing powder according to claim 2, characterized in that, The bolt (15) and the storage bag (9) are in contact with each other.

4. The fluid classification device for rare earth polishing powder according to claim 1, wherein The bottom end of the limiting plate (8) is fixedly connected to several support frames (14), and the bottom end of the support frame (14) is fixedly connected to a support base (5).

5. The fluid classification device for rare earth polishing powder according to claim 1, wherein Support legs (2) are fixedly connected to the four corners of the bottom end of the support plate (1).

6. The fluid classification device for rare earth polishing powder according to claim 1, wherein The surface of the filter box (10) is made of non-woven fabric.

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