Vortex combined powder concentrator

Abstract

The utility model relates to a vortex combined type powder concentrator which comprises a powder selecting box, a sealing cover, a rotating frame, a powder selecting plate and a motor, a cover plate A is hinged to a powder inlet, the rotating frame is arranged in the powder selecting box and located below the powder inlet, and the rotating frame is of an inverted-circular-truncated-cone-shaped bowl-shaped structure. A plurality of layers of mounting grooves which are uniformly distributed along the circumference are sequentially formed in the side face of the rotating frame from top to bottom, powder selecting plates are detachably connected to the mounting grooves, powder receiving grooves corresponding to the powder selecting plates with different heights are sequentially formed in the positions, on the outer side of the rotating frame, of the powder selecting box from top to bottom, and the inner edges of the powder receiving grooves are rotationally connected with the rotating frame; powder outlets corresponding to the powder receiving grooves are formed outside the powder selecting box, a rotating rod is rotationally connected to the bottom of the powder selecting box, the upper end of the rotating rod is coaxially connected with the center of the bottom of the rotating frame, a motor is arranged below the powder selecting box, and a driving rod of the motor is coaxially connected with the lower end of the rotating rod. The powder selecting device has the advantages of convenience in powder selecting and wide application range.

Description

Technical Field

[0001] This utility model relates to the field of air classifier technology, specifically to a vortex combined air classifier. Background Technology

[0002] Air classifiers separate materials by particle size, that is, they separate powders of different particle sizes in the material to obtain powders of various particle sizes. They are generally divided into three categories: three-stage air classifiers, centrifugal air classifiers, and cyclone air classifiers.

[0003] Traditional air classifiers have relatively fixed structures for their air classifier components, which means that the air classifier holes can only meet the air classifier requirements for a specific size range, thus limiting their applicability. In addition, the powder at the bottom is prone to clumping due to the pressure from the powder above, which reduces the powder output efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a vortex combined air classifier, which has the advantages of convenient air classification, wide applicability, and high air output efficiency.

[0005] The technical solution of this utility model is as follows:

[0006] A vortex combined air classifier includes an air classifier box, a sealing cover, a rotating frame, an air classifier plate, and a motor. The sealing cover is detachably connected to the top opening of the air classifier box. The sealing cover has an air inlet that communicates with the upper and lower parts of the air inlet. A cover plate A is hinged to the air inlet. The rotating frame is located inside the air classifier box below the air inlet. The rotating frame has a bowl-shaped structure resembling an inverted frustum. The sealing cover covers the upper opening of the rotating frame. The side of the rotating frame has several layers of evenly distributed mounting grooves along its circumference, arranged sequentially from top to bottom. An air classifier plate is detachably connected to each mounting groove. The air classifier plate has evenly distributed air classifier holes that communicate with each other internally and externally. The powder selection holes of the square powder selection plate are larger than those of the powder selection plate below it. The powder selection holes of the powder selection plates at the same height are of similar size. The powder selection box has powder receiving grooves on the outside of the rotating frame from top to bottom, corresponding to the powder selection plates of different heights. The inner edge of the powder receiving groove is rotatably connected to the rotating frame. The powder selection box has powder outlets corresponding to each powder receiving groove. A cover plate B is detachably connected to the powder outlet. A rotating rod is rotatably connected to the bottom of the powder selection box. The upper end of the rotating rod is coaxially connected to the center of the bottom of the rotating frame. A motor is located below the powder selection box. The drive rod of the motor is coaxially connected to the lower end of the rotating rod.

[0007] Preferably, the powder classifier has an annular fixed seat at the bottom, an annular groove at the top, an annular air passage A along the circumference of the annular groove, an annular protrusion at the bottom of the rotating frame, an annular air passage B along the circumference of the annular protrusion, the annular groove and the annular protrusion being rotatably connected, the upper end of the annular air passage A communicating with the lower end of the annular air passage B, the upper end of the annular air passage B communicating with the bottom of the rotating frame, a powder-blocking mesh cover A at the upper end of the annular air passage B, an air pump and an air supply pipe on the outer side wall of the powder classifier, an exhaust pipe on the sealing cover, the inner end of the exhaust pipe leading to the bottom of the sealing cover, the outer end of the exhaust pipe being detachably connected to the upper end of the air supply pipe, the lower end of the air supply pipe communicating with the air inlet of the air pump, the air outlet of the air pump communicating with the annular air passage A via an air supply pipe passing through the powder classifier, and a powder-blocking mesh cover B at the inner end of the exhaust pipe.

[0008] Preferably, the outer wall of the rotating frame is provided with an annular sliding groove along the circumference at the lower edge of each layer of the mounting groove, and the inner edge of the powder receiving groove is rotatably connected to the corresponding annular sliding groove.

[0009] Preferably, the mounting groove is connected to the powder sorting plate by fixing screws.

[0010] Preferably, the outer edge of the top of the rotating frame is provided with an annular slider along the circumference, and the powder selection box is provided with an annular slide rail corresponding to the annular slider, and the annular slider and the annular slide rail are rotatably connected.

[0011] Preferably, the bottom of the powder receiving trough is lower at the end near the powder outlet than at the end away from the powder outlet.

[0012] The beneficial technical effects of this utility model are as follows:

[0013] 1. The powder to be screened is poured into the rotating frame inside the powder separator through the powder inlet. The rotating frame is driven to rotate by the motor via the rotating rod. The powder placed in the rotating frame adheres to the powder separator plate under centrifugal force and falls into the corresponding powder receiving trough through the appropriate powder separator hole. This allows powders of different sizes to leave the powder separator from different powder outlets, making powder selection convenient. In addition, the staff can change the powder selection standard by changing the powder separator plate with different sized powder separator holes, thus expanding the scope of application.

[0014] 2. By using the combined use of the vacuum pump, exhaust pipe, air delivery pipe, air supply pipe, and annular air passage A and annular air passage B, rising air that can disperse the powder is created at the bottom of the rotating frame, reducing the possibility of powder clumping at the bottom of the rotating frame and improving powder discharge efficiency; powder baffles A and B are used to prevent powder from mixing into annular air passage B and exhaust pipe; air supply pipe, annular air passage A and annular air passage B are used to form the flow path of air from the vacuum pump to the bottom of the rotating frame; exhaust pipe and air delivery pipe are used to form the flow path of air from the powder separator to the vacuum pump. Attached Figure Description

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0016] Appendix Figure 1 This is the front view of the present invention.

[0017] Appendix Figure 2 This is a front-view cross-sectional view of the present invention.

[0018] Appendix Figure 3 for Figure 2 Enlarged view of part A.

[0019] Appendix Figure 4 for Figure 2 Enlarged view of part B.

[0020] In the diagram: 1-Powder separator, 2-Sealing cover, 3-Rotating frame, 4-Powder separator plate, 5-Motor, 6-Powder inlet, 7-Cover plate A, 8-Mounting groove, 9-Powder separator hole, 10-Powder receiving groove, 11-Powder outlet, 12-Cover plate B, 13-Rotating rod, 14-Annular fixed seat, 15-Annular groove, 16-Annular protrusion, 17-Annular air passage A, 18-Annular air passage B, 19-Powder baffle cover A, 20-Air pump, 21-Air delivery pipe, 22-Exhaust pipe, 23-Air supply pipe, 24-Powder baffle cover B, 25-Annular slide groove, 26-Fixing screw, 27-Annular slider, 28-Annular slide rail. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Example:

[0023] like Figures 1 to 4As shown, this embodiment provides a vortex combined air classifier, including an air classifier box 1, a sealing cover 2, a rotating frame 3, an air classifier plate 4, and a motor 5. The sealing cover 2 is detachably connected to the top opening of the air classifier box 1. The sealing cover 2 has an air inlet 6 that communicates with the upper and lower parts of the air classifier box 1. A cover plate A7 is hinged to the air inlet 6. The rotating frame 3 is located inside the air classifier box 1 below the air inlet 6. The rotating frame 3 has a bowl-shaped structure resembling an inverted frustum. The sealing cover 2 covers the upper opening of the rotating frame 3. The side of the rotating frame 3 has several layers of evenly distributed mounting grooves 8 from top to bottom. An air classifier plate 4 is detachably connected to the mounting grooves 8. The air classifier plate 4 has evenly distributed air classifier holes 9 that communicate with the inner and outer parts of the air classifier plate 4. The powder selection hole 9 of the square powder selection plate 4 is larger than that of the powder selection hole 9 of the powder selection plate 4 below. The powder selection holes 9 of the powder selection plates 4 at the same height are of similar size. The powder selection box 1 is provided with powder receiving grooves 10 corresponding to powder selection plates 4 at different heights from top to bottom on the outside of the rotating frame 3. The inner edge of the powder receiving groove 10 is rotatably connected to the rotating frame 3. The powder selection box 1 is provided with powder outlets 11 corresponding to each powder receiving groove 10. A cover plate B12 is detachably connected to the powder outlet 11. A rotating rod 13 is rotatably connected to the bottom of the powder selection box 1. The upper end of the rotating rod 13 is coaxially connected to the bottom center of the rotating frame 3. A motor 5 is provided below the powder selection box 1. The drive rod of the motor 5 is coaxially connected to the lower end of the rotating rod 13.

[0024] The powder to be screened is poured into the rotating frame 3 inside the powder sorting box 1 through the powder inlet 6. The rotating frame 3 is driven to rotate by the motor 5 via the rotating rod 13. The powder placed in the rotating frame 3 adheres to the powder sorting plate 4 under centrifugal force and falls into the corresponding powder receiving tank 10 through the appropriate powder sorting hole 9. Larger and heavier powders are thrown out from the powder sorting hole 9 of the upper powder sorting plate 4, while smaller and lighter powders are thrown out from the powder sorting hole 9 of the lower powder sorting plate 4. Finally, powders of different sizes leave the powder sorting box 1 from different powder outlets 11. The powder sorting is convenient, and the staff can change the powder sorting standard by changing the powder sorting plate 4 with different sized powder sorting holes 9, thus expanding the scope of application.

[0025] Furthermore, the bottom of the powder sorting box 1 is provided with an annular fixing seat 14, the top of the fixing seat is provided with an annular groove 15, and an annular air passage A17 is provided along the circumference of the annular groove 15. The bottom of the rotating frame 3 is provided with an annular protrusion 16, and an annular air passage B18 is provided along the circumference of the annular protrusion 16. The annular groove 15 and the annular protrusion 16 are rotatably connected. The upper end of the annular air passage A17 is connected to the lower end of the annular air passage B18. The upper end of the annular air passage B18 is connected to the bottom of the rotating frame 3. The upper end is provided with a dust-blocking screen A19. The side wall outside the powder classifier 1 is provided with a vacuum pump 20 and an air supply pipe 21. The sealing cover 2 is provided with an exhaust pipe 22. The inner end of the exhaust pipe 22 leads to the bottom of the sealing cover 2. The outer end of the exhaust pipe 22 is detachably connected to the upper end of the air supply pipe 21. The lower end of the air supply pipe 21 is connected to the air inlet of the vacuum pump 20. The air outlet of the vacuum pump 20 is connected to the annular air passage A17 through the air supply pipe 23 that passes through the powder classifier 1. The inner end of the exhaust pipe 22 is provided with a dust-blocking screen B24.

[0026] By using the combined use of the vacuum pump 20, exhaust pipe 22, air supply pipe 21, air delivery pipe 23, annular air passage A17, and annular air passage B18, rising air that can disperse the powder is created at the bottom of the rotating frame 3, reducing the possibility of powder clumping at the bottom of the rotating frame 3 and improving powder output efficiency; the powder baffle A19 and powder baffle B24 are used to prevent powder from mixing into the annular air passage B18 and exhaust pipe 22, the air delivery pipe 23, annular air passage A17, and annular air passage B18 are used to form a flow path for air from the vacuum pump 20 to the bottom of the rotating frame 3, and the exhaust pipe 22 and air supply pipe 21 are used to form a flow path for air from the powder separator 1 to the vacuum pump 20.

[0027] Furthermore, the outer wall of the rotating frame 3 is provided with an annular groove 25 along the circumference of the lower edge of each layer of the mounting groove 8, and the inner edge of the powder receiving groove 10 is rotatably connected to the corresponding annular groove 25.

[0028] The stability of the rotating frame 3 is improved by using the combination of the annular slide 25 and the inner edge of the powder receiving groove 10.

[0029] Furthermore, the mounting slot 8 is connected to the powder selection plate 4 by fixing screws 26.

[0030] The powder separator plate 4, which is connected by fixing screws 26, is securely installed and easy to install and remove.

[0031] Furthermore, an annular slider 27 is provided along the circumference of the outer edge of the top of the rotating frame 3, and an annular slide rail 28 corresponding to the annular slider 27 is provided inside the powder selection box 1. The annular slider 27 and the annular slide rail 28 are rotatably connected.

[0032] The stability of the rotation of the rotating frame 3 is improved by using the combination of the annular slider 27 and the annular slide rail 28.

[0033] Furthermore, the bottom of the powder receiving trough 10 is lower at the end near the powder outlet 11 than at the end far from the powder outlet 11.

[0034] The bottom of the powder receiving trough 10 is inclined downward toward the powder outlet 11, which facilitates the powder falling into the powder receiving trough 10 to roll toward the powder outlet 11, thereby improving the powder discharge efficiency.

[0035] Working principle and usage process of this utility model:

[0036] Before powder selection, the staff removes the sealing cover 2 and installs the appropriate powder selection plate 4 with the powder selection hole 9 into the installation slot 8 according to the powder selection requirements. During the powder selection process, the staff lifts the cover plate A7 and pours the powder to be selected into the powder inlet 6. After passing through the powder inlet 6, the powder falls into the rotating frame 3. Then, the staff closes the cover plate A7 and starts the motor 5 and the vacuum pump 20. The motor 5 drives the rotating frame 3 to rotate via the rotating rod 13. Under centrifugal force, the powder in the rotating frame 3 is thrown up onto the powder selection plate 4 and rises until it encounters the appropriately sized powder selection hole 9. After passing through the powder selection hole 9, the powder falls into the corresponding receiving port. Inside the powder tank 10, the air pump 20 delivers air to the bottom of the rotating frame 3 via the air supply pipe 23, the annular air passage A17, and the annular air passage B18. The air rushing out from the powder baffle A19 disperses the accumulated powder, preventing it from clumping. The air in the powder selection box 1 returns to the air pump 20 via the exhaust pipe 22 and the air supply pipe 21, providing the air source required for the air pump 20 to continuously blow air. After the powder in the rotating frame 3 is dispersed into its corresponding powder receiving tank 10, the operator turns off the motor 5 and the air pump 20, and then opens the cover plate B12 of the powder outlet 11 to release the powder that has been selected.

[0037] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A vortex combined air classifier, characterized in that: The system includes a classifier box, a sealing cover, a rotating frame, a classifier plate, and a motor. A sealing cover is detachably connected to the top opening of the classifier box. The sealing cover has a powder inlet that communicates with the upper part of the box. A cover plate A is hinged to the powder inlet. Inside the classifier box, below the powder inlet, is a rotating frame with an inverted frustum-shaped bowl structure. The sealing cover covers the upper opening of the rotating frame. The side of the rotating frame has several layers of evenly distributed mounting grooves along its circumference, arranged sequentially from top to bottom. A classifier plate is detachably connected to each mounting groove. The classifier plate has evenly distributed, internally and externally communicating classifier holes. The upper classifier... The powder selection holes of the plate are larger than those of the powder selection plate below. The powder selection holes of the powder selection plates at the same height are of similar size. The powder selection box has powder receiving grooves from top to bottom on the outside of the rotating frame, corresponding to the powder selection plates of different heights. The inner edge of the powder receiving groove is rotatably connected to the rotating frame. The powder selection box has powder outlets corresponding to each powder receiving groove. A cover plate B is detachably connected to the powder outlet. A rotating rod is rotatably connected to the bottom of the powder selection box. The upper end of the rotating rod is coaxially connected to the center of the bottom of the rotating frame. A motor is located below the powder selection box. The drive rod of the motor is coaxially connected to the lower end of the rotating rod.

2. The vortex combined air classifier according to claim 1, characterized in that: The powder classifier has an annular fixed base at the bottom, an annular groove at the top, and an annular air passage A along the circumference of the annular groove. The rotating frame has an annular protrusion at the bottom, and an annular air passage B along the circumference of the annular protrusion. The annular groove and the annular protrusion are rotatably connected. The upper end of the annular air passage A is connected to the lower end of the annular air passage B. The upper end of the annular air passage B is connected to the bottom of the rotating frame. A powder-blocking mesh cover A is provided at the upper end of the annular air passage B. An air pump and an air supply pipe are provided on the outer side wall of the powder classifier. An exhaust pipe is provided on the sealing cover. The inner end of the exhaust pipe leads to the bottom of the sealing cover. The outer end of the exhaust pipe is detachably connected to the upper end of the air supply pipe. The lower end of the air supply pipe is connected to the air inlet of the air pump. The air outlet of the air pump is connected to the annular air passage A via an air supply pipe that passes through the powder classifier. A powder-blocking mesh cover B is provided at the inner end of the exhaust pipe.

3. The vortex combined air classifier according to claim 2, characterized in that: The outer wall of the rotating frame is provided with an annular sliding groove along the circumference of the lower edge of each layer of the mounting groove, and the inner edge of the powder receiving groove is rotatably connected to the corresponding annular sliding groove.

4. A vortex combined air classifier according to claim 2, characterized in that: The mounting slot is connected to the powder classifier plate by fixing screws.

5. A vortex combined air classifier according to claim 2, characterized in that: The outer edge of the top of the rotating frame is provided with an annular slider, and the powder selection box is provided with an annular slide rail corresponding to the annular slider. The annular slider and the annular slide rail are rotatably connected.

6. A vortex combined air classifier according to claim 2, characterized in that: The bottom of the powder receiving trough is lower at the end near the powder outlet than at the end furthest from the powder outlet.

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