Centrifugal oil removal device for capsules

Abstract

The utility model discloses a capsule centrifugal oil removal device which is characterized in that a rotating cage assembly is arranged on a rack, a centrifugal assembly is arranged on the feeding side of the rotating cage assembly, and a pill feeding pipe is inserted into the centrifugal assembly; the centrifugal assembly is provided with a centrifugal rotating hub, and the centrifugal rotating hub is driven by a centrifugal motor; a conical cylinder section is arranged on the centrifugal rotating hub, the cylinder diameter of the conical cylinder section is gradually increased from the feeding end to the discharging end, and a plurality of screen holes are formed in the conical cylinder section in a staggered mode. The centrifugal assembly is additionally arranged in front of the rotating cage assembly, most grease is centrifugally separated in the centrifugal assembly and then fed into the rotating cage assembly to further separate residual grease, grease removal is more thorough, the grease removal effect is better, little grease is left on dripping pills, the drying speed is greatly increased, the drying treatment time is shortened, the drying effect is better, and the drying efficiency is improved. And the production efficiency is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of equipment, especially a capsule centrifugal oil removing device for drop pill oil removing. BACKGROUND

[0002] Drop pills are a form of solid dispersion, which are prepared by dropping a solution, suspension or emulsion of a solid or liquid medicine and a base into a non-miscible condensate. The production process of drop pills mainly includes pill dropping, oil removing, drying and packaging. The oil removing is usually carried out by centrifugal equipment.

[0003] The patent application file with the publication number CN1357412A discloses a traditional Chinese medicine drop pill degreasing centrifuge. A cylindrical outer barrel is arranged on the frame, and a cylindrical centrifuge cylinder is arranged in the outer barrel. The outer barrel has a feeding port and a discharging port on the upper and lower cylindrical surfaces. The cylindrical surface of the centrifuge cylinder has a side opening door. The cylindrical surface of the centrifuge cylinder and the movable door cover are covered with sieve holes. The centrifuge shaft is driven by a motor. When the motor is started, the centrifuge cylinder rotates. The drop pill and oil mixture adhere to the wall of the centrifuge cylinder under the action of centrifugal force. The oil is thrown out from the centrifuge cylinder through the sieve hole under the action of centrifugal force. The oil is collected by the centrifuge cylinder and is sent back to the oil collecting tank through the pipeline for standby use. The drop pill degreasing centrifuge adopts a cylindrical centrifuge cylinder for oil removing. The oil removing effect is not ideal. There is much oil residue on the drop pill. After being sent to the subsequent drying section, the drying speed is slow, the drying treatment time is long (at least 48 hours), the drying effect is not ideal, and the production efficiency is low. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the existing drop pill degreasing centrifuge, the applicant provides a capsule centrifugal oil removing device with a reasonable structure. The oil removing is more thorough, the oil removing effect is better, the subsequent drying time is shortened, the drying effect is better, and the production efficiency is improved.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A capsule centrifugal oil removing device is provided. A rotating cage assembly is arranged on the frame. A centrifugal assembly is arranged on the feeding side of the rotating cage assembly. A pill feeding pipe is inserted into the centrifugal assembly. The centrifugal assembly is provided with a centrifugal hub, which is driven by a centrifugal motor. A conical cylinder section is arranged on the centrifugal hub. The cylinder diameter of the conical cylinder section gradually increases from the feeding end to the discharging end. A plurality of sieve holes are arranged on the conical cylinder section in a staggered manner.

[0007] As a further improvement of the above technical scheme:

[0008] The centrifugal hub is horizontally arranged. The sieve holes of the conical cylinder section of the centrifugal hub are long strip-shaped holes. The hole length of each sieve hole gradually increases from the feeding end to the discharging end. The sieve holes closer to the discharging end have longer length.

[0009] The first straight cylinder section and the second straight cylinder section are arranged on the centrifugal hub, the small-diameter end of the conical cylinder section is connected with the first straight cylinder section, and the large-diameter end of the conical cylinder section is connected with the second straight cylinder section; and the axial length of the conical cylinder section is greater than the axial lengths of the first straight cylinder section and the second straight cylinder section.

[0010] The centrifugal assembly is provided with a rotating cylinder, the centrifugal hub is fixed at the discharging end of the rotating cylinder, and the pellet inlet pipe is inserted at the feeding end of the rotating cylinder; the rotating cylinder is arranged on the frame through a bearing assembly, a belt pulley is arranged on the rotating cylinder, the belt pulley is connected to the driving shaft of the centrifugal motor through a transmission belt, and the centrifugal motor is fixed on the frame.

[0011] The rotating cylinder is horizontally arranged; a through conical hole is axially arranged in the rotating cylinder, the small-diameter end of the conical hole is the feeding end, the large-diameter end of the conical hole is the discharging end, and a gap is formed between the outer surface of the pellet inlet pipe and the inner surface of the conical hole; the hole diameter of the large-diameter end of the conical hole is less than or equal to the hole diameter of the first straight cylinder section of the centrifugal hub.

[0012] The centrifugal hub is provided with a flange, a counterbore is arranged on the rotating cylinder, the flange is arranged in the counterbore and is pressed by a pressing plate, and the pressing plate is fixed on the rotating cylinder.

[0013] The pellet inlet pipe comprises a vertical pipe section, a bent pipe section and a horizontal pipe section, the vertical pipe section comprises a straight section and a conical section, the straight section is connected with the large-diameter end of the conical section, the small-diameter end of the conical section is connected with the bent pipe section, the horizontal pipe section is horizontally inserted into the rotating cylinder of the centrifugal assembly, and the pipe diameter of the horizontal pipe section is less than the hole diameter of the small-diameter end of the conical hole of the rotating cylinder.

[0014] The centrifugal hub of the centrifugal assembly is arranged in an oil receiving tank, and the oil receiving tank is provided with an oil discharge pipe communicated at the bottom.

[0015] The feeding side of the rotating cage assembly is provided with a feeding cylinder, the feeding cylinder is a conical cylinder, the large-diameter end of the feeding cylinder is connected with the rotating cage body, and the small-diameter end of the feeding cylinder is opposite to the second straight cylinder section of the centrifugal hub; the hole diameter of the second straight cylinder section is less than or equal to the hole diameter of the feeding end of the feeding cylinder; and the discharging side of the rotating cage assembly is provided with a pellet blower.

[0016] The rotating cage assembly comprises a rotating cage body, a supporting wheel and a rotating cage motor, the rotating cage body is connected with the rotating cage motor, the supporting wheel is arranged at the lower side of the rotating cage body, and the supporting wheel is rotatably connected with the frame, and the rotating cage motor is fixed on the frame.

[0017] The beneficial effects of the utility model are as follows:

[0018] This invention adds a centrifugal component before the rotary drum assembly. Within the centrifugal component, most (80-90%) of the grease is separated by centrifugation before being fed into the rotary drum assembly for further separation of the remaining grease. The advantages of this approach are twofold: firstly, the grease is removed through two separation processes—centrifugation and rotary drum—compared to the single separation process in existing technologies, resulting in more thorough grease removal and a better overall effect; secondly, with most of the grease removed in the centrifugal component, the rotary drum assembly bears a lighter grease removal load, allowing it to fully utilize its grease removal function and completely remove any remaining grease. After the grease on the pellets is thoroughly removed through these two processes, the pellets are then sent to the drying stage for drying. This results in less residual grease on the pellets, significantly increasing the drying speed, shortening the drying time (approximately 7-8 hours), improving the drying effect, and increasing production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the centrifuge assembly.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] In the picture:

[0023] 1. Rack;

[0024] 2. Rotary drum assembly; 21. Rotary drum body; 22. Support rollers; 23. Rotary drum motor; 24. Feed cylinder;

[0025] 3. Centrifugal assembly; 31. Rotary drum; 311. Conical hole; 312. Countersunk hole; 32. Centrifugal hub; 321. First straight section; 322. Conical section; 3221. Sieve hole; 323. Second straight section; 324. Flanged edge; 33. Bearing assembly; 34. Pressure plate; 35. Pulley; 36. Drive belt; 37. Centrifugal motor;

[0026] 4. Shot inlet pipe; 41. Vertical pipe section; 411. Straight section; 412. Conical section; 42. Bend section; 43. Horizontal pipe section;

[0027] 5. Oil tank; 6. Oil drain pipe; 7. Shot blower. Detailed Implementation

[0028] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0029] like Figure 1As shown, the rack 1 of the utility model is provided with a rotating cage assembly 2, the feeding side of the rotating cage assembly 2 is provided with a centrifugal assembly 3, a pellet inlet pipe 4, an oil receiving tank 5 and an oil discharge pipe 6, and the discharging side of the rotating cage assembly 2 is provided with a pellet blower 7. The pellet inlet pipe 4 is inserted into the feeding port of the centrifugal assembly 3, the centrifugal assembly 3 passes through the oil receiving tank 5 horizontally, and the oil discharge pipe 6 is located at the bottom of the oil receiving tank 5 and communicates with the oil receiving tank 5.

[0030] The rotating cage assembly 2 comprises a rotating cage body 21, a supporting wheel 22 and a rotating cage motor 23. The rotating cage body 21 is connected with the rotating cage motor 23 and is driven by the rotating cage motor 23, and the supporting wheel 22 is supported at both ends of the lower side of the rotating cage body 21. The supporting wheel 22 is rotatably connected to the rack 1, and the rotating cage motor 23 is fixed to the rack 1. A feeding cylinder 24 is connected to the side of the feeding side of the rotating cage body 21, and the feeding cylinder 24 is a conical cylinder, the large-diameter end of which is connected to the rotating cage body 21, and the small-diameter end thereof faces the discharging port of the centrifugal assembly 3.

[0031] As shown in Figure 1 , Figure 2 , the centrifugal assembly 3 comprises a rotating drum 31 and a centrifugal hub 32, and the central shafts of the rotating drum 31 and the centrifugal hub 32 are arranged in the horizontal direction; the rotating drum 31 and the centrifugal hub 32 of the centrifugal assembly 3 are horizontally arranged, and the dripping pills can leave the centrifugal hub 32 under the action of gravity and at a relatively low rotating speed (usually 200-300 rpm), so that the oil can be fully removed under the action of centrifugal force, and the dripping pills are also prevented from being deformed or damaged due to the excessively high rotating speed and kinetic energy. The centrifugal hub 32 is fixed to the end face of the discharging side of the rotating drum 31, and the pellet inlet pipe 4 is inserted into the feeding side of the rotating drum 31. The rotating drum 31 is arranged on a bearing assembly 33, and the bearing assembly 33 is fixed to the rack 1. A belt pulley 35 is fixed outside the feeding end of the rotating drum 31, the belt pulley 35 is connected to the driving shaft of a centrifugal motor 37 through a transmission belt 36, and the centrifugal motor 37 is fixed to the rack 1. The centrifugal hub 32 is arranged in the oil receiving tank 5, and the oil separated by the centrifugal hub 32 is collected by the oil receiving tank 5 and then discharged outward through the oil discharge pipe 6.

[0032] As shown in Figure 2 , an axial through conical hole 311 is formed in the rotating drum 31 of the centrifugal assembly 3, the small-diameter end of the conical hole 311 is the feeding end, and the large-diameter end is the discharging end, that is, the hole diameter of the conical hole 311 gradually increases from the feeding end to the discharging end. The inner hole of the rotating drum 31 is designed as the conical hole 311, which enables the dripping pills carrying a large amount of oil to form better spiral motion after entering the rotating drum 31, thereby increasing the collision opportunity of the dripping pills and the cylinder wall and improving the separation efficiency. Moreover, the design of the conical hole 311 enables the oil to be thrown to the cylinder wall under the action of centrifugal force and then flow to the discharging port along the conical wall, which improves the oil separation efficiency and is also beneficial to the oil discharge.

[0033] ‌As shown in Figure 2As shown, the centrifugal hub 32 of the centrifugal assembly 3 is pressed onto the drum 31 by the pressing plate 34. The centrifugal hub 32 is sequentially provided with a first straight cylinder segment 321, a tapered cylinder segment 322, and a second straight cylinder segment 323 from the feed end to the discharge end. The tapered cylinder segment 322 gradually increases in cylinder diameter from the feed end to the discharge end, and is connected to the first straight cylinder segment 321 at the small-diameter end and to the second straight cylinder segment 323 at the large-diameter end. The axial length of the tapered cylinder segment 322 is greater than the axial lengths of the first straight cylinder segment 321 and the second straight cylinder segment 323. The provision of the long-axial-length tapered cylinder segment 322 increases the spiral movement path and time of the drop pills in the tapered cylinder segment 322, and allows the oil and fat to have a more sufficient separation path and time in the tapered cylinder segment 322, so that the oil and fat is more fully separated. As shown in Figure 3 As shown, the first straight cylinder segment 321 is provided with a flange 324 outwardly turned radially at one end facing the drum 31. A counterbore 312 is formed on the end face of the drum 31, and the flange 324 is fitted into the counterbore 312 and pressed by the pressing plate 34. The pressing plate 34 is fixed to the drum 31. The hole diameter of the first straight cylinder segment 321 is greater than or equal to the hole diameter of the large-diameter end of the tapered hole 311 of the drum 31, so that all the separated oil and fat from the drum 31 flows into the centrifugal hub 32 and is discharged from the centrifugal hub 32, avoiding the retention of the oil and fat in the drum 31 and affecting the separation efficiency and effect. As shown in Figure 2 、 Figure 3 As shown, a plurality of sieve holes 3221 are formed on the tapered cylinder segment 322 in a staggered manner. The sieve holes 3221 are long-strip-shaped holes, and the hole length of each sieve hole 3221 gradually increases from the feed end to the discharge end, i.e., the sieve hole 3221 closer to the discharge end is provided with a longer hole length. Since the oil and fat separated by the tapered cylinder segment 322 flows along the tapered cylinder wall to the discharge end, the flow area of the sieve hole 3221 is gradually increased along the flow direction of the oil and fat, which is beneficial to the discharge of the separated oil and fat to the oil receiving tank 5, and improves the separation efficiency and effect. As shown in Figure 1 As shown, the second straight cylinder segment 323 is opposite to the feed cylinder 24 of the rotating cage assembly 2, and the cylinder diameter of the second straight cylinder segment 323 is less than or equal to the hole diameter of the feed end of the feed cylinder 24, so that all the drop pills output from the second straight cylinder segment 323 pass through the feed cylinder 24 and enter the rotating cage body 21.

[0034] As shown in Figure 2As shown, the pill inlet pipe 4 is connected to the frame 1 through a connecting plate, and the pill inlet pipe 4 and the connecting plate are not in contact with the rotating drum 31 of the centrifugal assembly 3, preventing interference with the rotation of the rotating drum 31. The pill inlet pipe 4 includes a vertical pipe section 41, a bent pipe section 42, and a horizontal pipe section 43. The vertical pipe section 41 includes a straight section 411 and a tapered section 412. The straight section 411 is connected to the large-diameter end of the tapered section 412, and the small-diameter end of the tapered section 412 is connected to the bent pipe section 42. The horizontal pipe section 43 is horizontally inserted into the rotating drum 31 of the centrifugal assembly 3. The pipe diameter of the horizontal pipe section 43 is smaller than the hole diameter of the small-diameter end of the tapered hole 311 of the rotating drum 31. There is a gap between the outer surface of the horizontal pipe section 43 and the inner surface of the tapered hole 311, preventing the horizontal pipe section 43 from interfering with the movement of the rotating drum 31. The pill inlet pipe 4 vertically feeds the oil-containing drop pills through the vertical pipe section 41, and after being turned to a horizontal feeding direction by the bent pipe section 42, the drop pills are horizontally fed into the rotating drum 31 of the centrifugal assembly 3.

[0035] In actual use, the oil-containing drop pills are vertically fed from the pill inlet pipe 4, and after being turned to a horizontal feeding direction by the pill inlet pipe 4, the drop pills are sent into the centrifugal assembly 3. After most of the oil is centrifugally separated in the centrifugal assembly 3, the drop pills are sent into the rotating cage assembly 2 for further separation of the remaining oil. After being dried by the pill blower 7, the drop pills are sent to the subsequent drying link for drying treatment.

[0036] The centrifugal assembly 3 is added before the rotating cage assembly 2. After most of the oil (80-90%) is centrifugally separated in the centrifugal assembly 3, the drop pills are sent into the rotating cage assembly 2 for further separation of the remaining oil. The advantages of this are: on the one hand, the oil is removed through two separation procedures of the centrifugal assembly 3 and the rotating cage assembly 2, which is more thorough and effective than the single separation procedure of the prior art; on the other hand, most of the oil is removed in the centrifugal assembly 3, so the rotating cage assembly 2 only needs to undertake a light oil removal task, which is more conducive to fully utilizing the oil removal function of the rotating cage assembly 2 to completely remove the remaining oil. After the oil on the drop pills is completely removed through the two oil removal procedures of the centrifugal assembly 3 and the rotating cage assembly 2, the drop pills are sent to the drying link for drying. The oil remaining on the drop pills is less, which greatly improves the drying speed, shortens the drying time (about 7-8 hours), and improves the drying effect and production efficiency.

[0037] The above description is an explanation of the utility model, not a limitation. The utility model can be modified in any form without deviating from the spirit of the utility model.

Claims

1. A capsule centrifugal deoiling device, a rotating cage assembly (2) is arranged on a frame (1), characterized in that: The feed inlet side of the rotating cage assembly (2) is provided with a centrifugal assembly (3), and a pill feeding pipe (4) is inserted into the centrifugal assembly (3); the centrifugal assembly (3) is provided with a centrifugal hub (32), and the centrifugal hub (32) is driven by a centrifugal motor (37); a conical cylinder section (322) is arranged on the centrifugal hub (32), the cylinder diameter of the conical cylinder section (322) gradually increases from the feed inlet end to the discharge end, and a plurality of sieve holes (3221) are arranged on the conical cylinder section (322) in a staggered manner.

2. The capsule centrifugal deoiling device according to claim 1, characterized in that: The centrifugal hub (32) is horizontally arranged; the sieve holes (3221) of the conical cylinder section (322) of the centrifugal hub (32) are long strip-shaped holes, the hole length of each sieve hole (3221) gradually increases from the feed inlet end to the discharge end, and the closer to the discharge end, the longer the length of the hole.

3. The capsule centrifugal deoiling apparatus of claim 1, wherein: The centrifugal hub (32) is provided with a first straight cylinder section (321) and a second straight cylinder section (323), the small-diameter end of the conical cylinder section (322) is connected to the first straight cylinder section (321), and the large-diameter end is connected to the second straight cylinder section (323); the axial length of the conical cylinder section (322) is greater than the axial lengths of the first straight cylinder section (321) and the second straight cylinder section (323).

4. The capsule centrifugal deoiling apparatus of claim 1, wherein: The centrifugal assembly (3) is provided with a rotating cylinder (31), the centrifugal hub (32) is fixed to the discharge end of the rotating cylinder (31), and the pill feeding pipe (4) is inserted into the feed inlet end of the rotating cylinder (31); the rotating cylinder (31) is arranged on the rack (1) through a bearing assembly (33), a belt pulley (35) is sleeved on the rotating cylinder (31), the belt pulley (35) is connected to the driving shaft of the centrifugal motor (37) through a transmission belt (36), and the centrifugal motor (37) is fixed to the rack (1).

5. The capsule centrifugal deoiling apparatus of claim 4, wherein: The rotating cylinder (31) is horizontally arranged; a through conical hole (311) is axially arranged in the rotating cylinder (31), the small-diameter end of the conical hole (311) is the feed inlet end, the large-diameter end is the discharge end, and there is a gap between the outer surface of the pill feeding pipe (4) and the inner surface of the conical hole (311); the hole diameter of the large-diameter end of the conical hole (311) is less than or equal to the hole diameter of the first straight cylinder section (321) of the centrifugal hub (32).

6. The capsule centrifugal deoiling apparatus of claim 1, wherein: The centrifugal hub (32) is provided with a flange (324), a counterbore (312) is correspondingly arranged on the rotating cylinder (31), the flange (324) is arranged in the counterbore (312) and is pressed tightly by a pressing plate (34), and the pressing plate (34) is fixed to the rotating cylinder (31).

7. The capsule centrifugal deoiling apparatus of claim 1, wherein: The pill feeding pipe (4) comprises a vertical pipe section (41), a bent pipe section (42) and a horizontal pipe section (43), the vertical pipe section (41) comprises a straight section (411) and a conical section (412), the straight section (411) is connected to the large-diameter end of the conical section (412), the small-diameter end of the conical section (412) is connected to the bent pipe section (42), the horizontal pipe section (43) is horizontally inserted into the rotating cylinder (31) of the centrifugal assembly (3), and the pipe diameter of the horizontal pipe section (43) is less than the hole diameter of the small-diameter end of the conical hole (311) of the rotating cylinder (31).

8. The capsule centrifugal deoiling apparatus of claim 1, wherein: The centrifugal hub (32) of the centrifugal assembly (3) is arranged in an oil receiving tank (5), and a drain pipe (6) is arranged at the bottom of the oil receiving tank (5).

9. The capsule centrifugal deoiling apparatus of claim 1, wherein: The feed side of the rotating cage assembly (2) is provided with a feed cylinder (24), which is a conical cylinder, the large-diameter end of which is connected to the rotating cage body (21), and the small-diameter end is opposite the second straight cylinder section (323) of the centrifugal rotating hub (32), the cylinder diameter of the second straight cylinder section (323) is less than or equal to the hole diameter of the feed end of the feed cylinder (24); the discharge side of the rotating cage assembly (2) is provided with a ball blower (7).

10. The capsule centrifugal deoiling apparatus of claim 1, wherein: The rotating cage assembly (2) comprises a rotating cage body (21), a supporting wheel (22) and a rotating cage motor (23), the rotating cage body (21) is connected with the rotating cage motor (23), the supporting wheel (22) is supported on the lower side of the rotating cage body (21), the supporting wheel (22) is rotatably connected to the rack (1), and the rotating cage motor (23) is fixed to the rack (1).

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