CN219334119U - Dry granulating equipment - Google Patents

Abstract

The utility model provides dry granulating equipment which comprises a feeding system, a buffer hopper, a rolling system, a cleaning roller, a recycling system and a granulating system, wherein the rolling system is arranged at the bottom of the buffer hopper and comprises two parallel pressing rollers; the cleaning rollers are respectively arranged on one side of each press roller, which is away from the other press roller, and the axial direction of each cleaning roller is parallel to the axial direction of each press roller; the recovery system comprises an air suction nozzle arranged at the bottom of the cleaning roller and a pipeline communicated with the air suction nozzle and the feeding system; the pelletization system is located the bottom of roll-in system, pelletization system includes granulator and cartridge filter. The dry granulating equipment provided by the utility model can transport the residues retained on the press roller back to the feeding system for recycling, so that the residues are prevented from being retained on the press roller to influence the pressing quality of the sheet, and the cost waste caused by the residues retained on the press roller is avoided.

Description

Dry granulating equipment

Technical Field

The utility model belongs to the technical field of pharmacy, and particularly relates to dry granulation equipment.

Background

Dry granulation is based on the principle of mechanical extrusion, and dry powder or fine crystal raw materials are extruded into slices by a screw feeder through a pressing wheel by using the crystallization water of the medicine powder, and then crushed and granulated by a crushing mechanism and screened through a net to prepare uniform product particles with specified size.

At present, in the dry granulation process, partial raw materials are easy to adhere to the pressing roller due to high pressure, and the raw materials adhered to the pressing roller not only influence the pressing quality of the next wave of medicine particles, but also cause the waste of the raw materials, and the manufacturing cost is increased.

Disclosure of Invention

The embodiment of the utility model provides a dry granulating machine, which aims to solve the technical problems that raw materials are easy to adhere to a compression roller in the existing dry granulating process to influence the quality of pressed granules and improve the manufacturing cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided a dry granulation apparatus comprising:

a feed system for dosing;

the buffer hopper is communicated with the feeding system;

the rolling system is arranged at the bottom of the buffer hopper and comprises two compression rollers which are arranged in parallel;

the cleaning rollers are respectively arranged on one side of each press roller, which is away from the other press roller, the axial direction of each cleaning roller is parallel to the axial direction of each press roller, and the steering direction of each cleaning roller is opposite to the steering direction of the adjacent press roller;

the recovery system comprises an air suction nozzle arranged at the bottom of the cleaning roller and a pipeline communicated with the air suction nozzle and the feeding system; and

the pelletization system is arranged at the bottom of the rolling system, the pelletization system comprises a pelletization machine and a filtering cylinder, and the filtering cylinder is sleeved on the periphery of the pelletization machine and is provided with an opening for materials to pass through.

In one possible implementation, a cleaning net is arranged in the air suction nozzle, the net surface of the cleaning net is parallel to the axial direction of the cleaning roller, and the distance between the cleaning net and the axial direction of the cleaning roller is smaller than the outer diameter of the cleaning roller.

In one possible implementation, the feed system includes:

the feeding hopper is internally provided with a crushing cutter; and

the spiral feeding pipe is arranged at the bottom of the feeding funnel, and the discharge end of the spiral feeding pipe is communicated with the buffer funnel.

In one possible implementation, the sweeping roller includes:

the roller body is parallel to the axial direction of the press roller;

the elastic net is sleeved on the periphery of the roller body; and

the sweeping head is fixedly arranged on the periphery of the elastic net.

In one possible implementation manner, an end face of the roller body is recessed to form a clamping groove, and a U-shaped clamping piece for fixing the elastic net is matched on the clamping groove.

In one possible implementation, the bottom of the buffer hopper is provided with a strip-shaped outlet extending along a first preset path, and the first preset path is parallel to the axial direction of the compression roller;

the bottom of the buffer funnel is also provided with two sliding plates which are oppositely arranged, the sliding plates are in sliding fit with the buffer funnel along a first preset path, and the two sliding plates are used for covering the strip-shaped outlet to adjust the width of the material sheet.

In one possible implementation manner, the filter cartridge comprises a plurality of filter screens which are sequentially arranged around the circumference of the filter cartridge, and the mesh sizes of the filter screens are different;

the openings are formed between adjacent filter screens at intervals.

In one possible implementation manner, the dry granulating device further comprises a frame, the granulating system is arranged on the frame, a driving motor is arranged on the frame, and an output shaft of the driving motor is in transmission connection with the filter cartridge and is used for driving the filter cartridge to rotate reciprocally in a preset angle.

In one possible implementation, the dry granulation device further comprises a receiving box arranged at the bottom of the granulation system, wherein a screen is arranged at the top in the receiving box, and the aperture of the screen is smaller than that of the filter cartridge.

In one possible implementation manner, a chute is formed on one side wall of the receiving box, a receiving plate opposite to the chute is arranged in the receiving box, and the screen mesh is in sliding fit with the chute and is lapped on the receiving plate.

Compared with the prior art, the in-process of making grain, put into the feeding system with the raw materials, the feeding system is with quantitative material supply buffer hopper, buffer hopper bottom flows the material through the roll-in system gradually, two compression rollers on the roll-in system press the material into the thin slice, at this in-process, the compression roller lasts the rotation, clean the roller and rotate along with the compression roller continuously and with the compression roller is reverse, clean the roller and sweep down the material that is detained on the compression roller and drop to suction nozzle department, the suction nozzle will clean the residue that the roller swept down and inhale back in the feeding system and recycle, the thin slice of roll-in system suppression falls into the pelletization system and pelletizes, obtain the medicine that accords with specification particle diameter after the cartridge filter screen after the pelletization. According to the dry granulating equipment, the cleaning roller and the recovery system are arranged on the periphery of the rolling system, so that residues retained on the pressing roller can be transported back to the feeding system for recycling, the residues are prevented from being retained on the pressing roller to affect the pressing quality of the sheet, and the cost waste caused by the residues retained on the pressing roller is avoided.

Drawings

Fig. 1 is a schematic partial sectional view of a dry granulation apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 (including only the buffer hopper, the roller system, and the pelletization system);

FIG. 3 is a schematic view of a filter cartridge according to an embodiment of the present utility model in an expanded state;

fig. 4 is an enlarged schematic view of the cleaning roller according to the embodiment of the present utility model.

Reference numerals illustrate:

10-a feeding system; 11-a feed hopper; 12-spiral feeding pipe; 13-a crushing knife;

20-buffering funnels; 21-outlet; 22-skateboards;

30-rolling system; 31-a press roll;

40-cleaning roller; 41-roller body; 42-an elastic web; 43-sweeping the head; 44-clamping grooves; 45-clamping piece;

50-a recovery system; 51-an air suction nozzle; 52-a pipeline; 53-cleaning net;

60-granulating system; 61-granulating machine; 62-a filter cartridge; 63-a filter screen; 64-opening;

70-a frame; 71-a drive motor;

80-a carrying box; 81-screen mesh; 82-sliding grooves; 83-a receiving plate.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 4, a dry granulation apparatus according to the present utility model will be described. The dry granulation equipment comprises a feeding system 10, a buffer hopper 20, a rolling system 30, a cleaning roller 40, a recovery system 50 and a granulation system 60, wherein the feeding system 10 is used for quantitative feeding; the buffer hopper 20 is communicated with the feeding system 10; the rolling system 30 is arranged at the bottom of the buffer hopper 20, and the rolling system 30 comprises two compression rollers 31 which are arranged in parallel; the cleaning rollers 40 are respectively arranged on one side of each press roller 31 away from the other press roller 31, the axial direction of each cleaning roller 40 is parallel to the axial direction of each press roller 31, and the steering direction of each cleaning roller 40 is opposite to the steering direction of the adjacent press roller 31; the recovery system 50 comprises an air suction nozzle 51 arranged at the bottom of the cleaning roller 40, and a pipeline 52 connected with the air suction nozzle 51 and the feeding system 10; the pelletization system 60 is arranged at the bottom of the rolling system 30, the pelletization system 60 comprises a pelletization machine 61 and a filtering cylinder 62, and the filtering cylinder 62 is sleeved on the periphery of pelletization and is provided with an opening 64 for materials to pass through.

Compared with the prior art, the dry granulation equipment provided by the embodiment is characterized in that raw materials are placed in the feeding system 10 in the granulation process, the feeding system 10 supplies quantitative materials to the buffer hopper 20, the materials gradually flow out from the bottom of the buffer hopper 20 and pass through the rolling system 30, two compression rollers 31 on the rolling system 30 press the materials into sheets, in the process, the compression rollers 31 continuously rotate, the cleaning rollers 40 continuously rotate along with the compression rollers 31 and are opposite to the compression rollers 31, the materials retained on the compression rollers 31 are swept down by the cleaning rollers 40 to fall to the air suction nozzles 51, residues swept down by the cleaning rollers 40 are sucked back into the feeding system 10 by the air suction nozzles 51 for recycling, the sheets pressed by the rolling system 30 fall into the granulation system 60 for granulation, and medicines meeting the specification particle size are obtained after the screening of the filter cartridges 62. The dry granulation equipment of the utility model can transport the residues retained on the compression roller 31 back to the feeding system 10 for recycling by arranging the cleaning roller 40 and the recovery system 50 on the periphery of the rolling system 30, thereby preventing the residues from being retained on the compression roller 31 to affect the pressing quality of the sheet and avoiding the cost waste caused by the residues retained on the compression roller 31.

In some embodiments, a modified embodiment of the air suction nozzle 51 may adopt a structure as shown in fig. 1. Referring to fig. 1, cleaning net 53 is provided in suction nozzle 51, the net surface of cleaning net 53 is parallel to the axial direction of cleaning roller 40, and the distance between cleaning net 53 and the axial direction of cleaning roller 40 is smaller than the outer diameter of cleaning roller 40. As will be apparent hereinafter, the cleaning roller 40 includes a roller body 41 and a cleaning head 43, and the outer diameter of the cleaning roller 40 is the sum of the outer diameter of the roller body 41 and the length of the cleaning head 43. By arranging the cleaning net 53, when the cleaning roller 40 rotates to the position of the cleaning net 53, residues adhered on the cleaning roller 40 can be cleared, and the recycling rate of the residues by the air suction nozzles 51 can be improved.

It should be noted that the recovery system 50 may be implemented by an air pump or the like to suck the residue at the suction nozzle 51 back into the feeding system 10.

In some embodiments, one embodiment of the feed system 10 may be configured as shown in FIG. 1. Referring to fig. 1, a feeding system 10 comprises a feeding funnel 11 and a spiral feeding pipe 12, wherein a crushing cutter 13 is arranged in the feeding funnel 11, the spiral feeding pipe 12 is arranged at the bottom of the feeding funnel 11, and a discharge end of the spiral feeding pipe 12 is communicated with a buffer funnel 20. Because the residues remained on the press roller 31 are of pressed sheet structures, when the suction nozzle 51 sucks the residues to the feeding system 10, the crushing knife 13 in the feeding hopper 11 rotates to crush the residues, so that the residues can be used as raw materials; through screw feed pipe 12, it is easy to understand that the rotation of screw rod in the feed pipe through the rotating electrical machines realizes the feed, realizes the ration feed through the rotation number of turns of control screw rod in the feed pipe, convenient operation.

In some embodiments, one embodiment of the cleaning roller 40 may have the structure shown in fig. 1 and 4. Referring to fig. 1 and 4, the cleaning roller 40 includes a roller body 41, an elastic net 42, and a cleaning head 43, the roller body 41 being parallel to the axial direction of the pressing roller 31; the elastic net 42 is sleeved on the periphery of the roller body 41; the sweeping head 43 is fixedly arranged on the periphery of the elastic net 42. After the roller body 41 is installed, the elastic net 42 is arranged on the roller body 41 in a stretching mode, namely the fixing of the sweeping head 43 on the roller body 41 is completed, and in the working process, the sweeping head 43 rotates along with the roller body 41 to sweep residues on the press roller 31. The present embodiment facilitates the installation and replacement of the sweeper 43, and reduces labor intensity.

In some embodiments, a specific connection between the roller 41 and the elastic net 42 may be as shown in fig. 1 and fig. 4. Referring to fig. 1 and 4, one end surface of the roller 41 is recessed to form a clamping groove 44, and a U-shaped clamping piece 45 for fixing the elastic net 42 is fitted on the clamping groove 44. After the elastic net 42 is sleeved on the roller body 41, one end of the U-shaped clamping piece 45 is inserted into the clamping groove 44 by inserting the U-shaped clamping piece 45 into the clamping groove 44, the other end of the U-shaped clamping piece 45 is clamped at the periphery of the elastic net 42 to fix the elastic net 42, the elastic net 42 is fixed through the structure, the elastic net 42 is prevented from sliding to generate relative displacement in the rotating process of the roller body 41, and the cleaning efficiency of the cleaning roller 40 on the press roller 31 is ensured.

In some embodiments, a modified implementation of the buffer funnel 20 may adopt the structure shown in fig. 1 to 2. Referring to fig. 1 to 2, the bottom of the buffer hopper 20 is provided with a strip-shaped outlet 21 extending along a first preset path parallel to the axial direction of the pressing roller 31; the bottom of the buffer hopper 20 is further provided with two sliding plates 22 which are arranged oppositely, the sliding plates 22 are in sliding fit with the buffer hopper 20 along a first preset path, and the two sliding plates 22 are used for covering the strip-shaped outlet 21 so as to adjust the width of the material sheets. The length of the strip-shaped outlet 21 is fixed, and the strip-shaped outlet is positioned right above the symmetry line of the two press rolls 31, the length of the strip-shaped outlet 21 can be changed by sliding the two sliding plates 22, and the adjusting distances of the two sliding plates 22 are equal, so that the width of a tablet pressed out by the press rolls 31 is adjusted, and different production requirements are met.

In some embodiments, one embodiment of the filter cartridge 62 may take the configuration shown in fig. 1-3. Referring to fig. 1 to 3, the filter cartridge 62 includes a plurality of screens 63 sequentially disposed around a circumference thereof, the plurality of screens 63 having different mesh sizes; openings 64 are formed between adjacent screens 63 in spaced apart relation. That is, one filter cartridge 62 includes a plurality of filter screens 63, and the corresponding filter screens 63 are selected according to the particle size of the required medicine, so that the corresponding filter screens 63 are positioned at the discharge port of the granulator 61 to meet different filtering requirements.

In some embodiments, a modified implementation of the filter cartridge 62 described above may employ the structure shown in fig. 1-2. Referring to fig. 1 to 2, the dry granulation apparatus further includes a frame 70, the granulation system 60 is disposed on the frame 70, a driving motor 71 is disposed on the frame 70, and an output shaft of the driving motor 71 is in transmission connection with the filter cartridge 62, so as to drive the filter cartridge 62 to reciprocally rotate within a preset angle. After the granulator 61 is completed, blanking falls onto a screen 81, and the screen 81 is driven by a driving motor 71 to reciprocally rotate to screen the medicine particle size, so that the medicine meeting the regulations is obtained. The predetermined angle may be exemplified by: for example, the filter cartridge 62 includes three filter screens 63 with different specifications, each filter screen 63 is located within 120 °, and the driving motor 71 drives the filter cartridge 62 to reciprocally rotate within 120 °, so that one filter screen 63 always corresponds to the blanking port of the granulator 61 within 120 ° of swing.

Specifically, the driving motor 71 may be directly connected to the filter cartridge 62 without interfering with the movement of the granulator 61, and if a transmission gear is provided between the driving motor 71 and the filter cartridge 62 to achieve a transmission connection in order to avoid the rotational movement of the granulator 61.

The feeding system 10, the buffer hopper 20, the rolling system 30, the cleaning roller 40, the recovery system 50, and the like may be fixed to the frame 70.

In some embodiments, a modified embodiment of the dry granulation apparatus described above may employ the structure shown in fig. 1. Referring to fig. 1, the dry granulation apparatus further comprises a receiving box 80 provided at the bottom of the granulation system 60, a screen 81 provided at the top of the receiving box 80, and a screen 81 having a smaller pore size than the filter cartridge 62. When the medicine screened by the filter cartridge 62 falls and enters the carrying box 80, the screen 81 in the carrying box 80 carries out secondary screening on the medicine, for example, the aperture of the screen 81 is x, the aperture of the corresponding filter screen 63 on the filter cartridge 62 is y, and y is larger than x, the grain size of the medicine carried by the screen 81 on the carrying box 80 is larger than x and smaller than y, the grain size of the medicine carried by the carrying box 80 at the bottom of the screen 81 is smaller than x, and the grain sizes of the medicine carried by the carrying box 80 are divided into two kinds, so that the medicine with a certain grain size range can be conveniently selected.

In some embodiments, a specific connection manner between the receiving box 80 and the screen 81 may be as shown in fig. 1. Referring to fig. 1, a side wall of the receiving box 80 is provided with a chute 82, a receiving plate 83 opposite to the chute 82 is provided in the receiving box 80, and the screen 81 is slidably engaged with the chute 82 and is overlapped with the receiving plate 83. The screen cloth 81 accessible pull is taken out from spout 82, is when needs change screen cloth 81, pushes new screen cloth 81 with in spout 82 to overlap joint is on accepting board 83, and the opposite both sides of screen cloth 81 overlap joint respectively in spout 82 inner wall and accept board 83 promptly, accomplishes the fixed to screen cloth 81, conveniently changes screen cloth 81 of different specifications, satisfies the screening of different particle diameter scope medicines.

In the present embodiment, any rotation device is conceivable, and this is achieved by motor driving, for example, the crushing blade 13 in the feeding hopper 11, the pressing roller 31 in the rolling system 30, etc. And this application embodiment is mainly used in the production medicine, in order to guarantee sanitary conditions, is equipped with the dust cover at necessary equipment periphery cover, like roll-in system 30 periphery etc. guarantees the seal of whole dry granulation equipment as far as possible.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A dry granulation apparatus, comprising:

a feed system for dosing;

the buffer hopper is communicated with the feeding system;

the rolling system is arranged at the bottom of the buffer hopper and comprises two compression rollers which are arranged in parallel;

the cleaning rollers are respectively arranged on one side of each press roller, which is away from the other press roller, the axial direction of each cleaning roller is parallel to the axial direction of each press roller, and the steering direction of each cleaning roller is opposite to the steering direction of the adjacent press roller;

the recovery system comprises an air suction nozzle arranged at the bottom of the cleaning roller and a pipeline communicated with the air suction nozzle and the feeding system; and

the pelletization system is arranged at the bottom of the rolling system, the pelletization system comprises a pelletization machine and a filtering cylinder, and the filtering cylinder is sleeved on the periphery of the pelletization machine and is provided with an opening for materials to pass through.

2. Dry granulation apparatus according to claim 1, wherein a cleaning net is provided in the suction nozzle, the net surface of the cleaning net being parallel to the axial direction of the cleaning roller, and the distance between the cleaning net and the cleaning roller axis being smaller than the outer diameter of the cleaning roller.

3. Dry granulation apparatus according to claim 1, wherein said feeding system comprises:

the feeding hopper is internally provided with a crushing cutter; and

the spiral feeding pipe is arranged at the bottom of the feeding funnel, and the discharge end of the spiral feeding pipe is communicated with the buffer funnel.

4. The dry granulation apparatus as set forth in claim 1, wherein said sweeping roller comprises:

the roller body is parallel to the axial direction of the press roller;

the elastic net is sleeved on the periphery of the roller body; and

the sweeping head is fixedly arranged on the periphery of the elastic net.

5. The dry granulation apparatus according to claim 4, wherein one end surface of the roller body is recessed to form a clamping groove, and a U-shaped clamping piece for fixing the elastic net is fitted on the clamping groove.

6. Dry granulation apparatus according to claim 1, wherein the bottom of the buffer hopper is provided with a strip-shaped outlet extending along a first preset path parallel to the axial direction of the press roller;

the bottom of the buffer funnel is also provided with two sliding plates which are oppositely arranged, the sliding plates are in sliding fit with the buffer funnel along a first preset path, and the two sliding plates are used for covering the strip-shaped outlet to adjust the width of the material sheet.

7. The dry granulation apparatus as set forth in claim 1, wherein said filter cartridge comprises a plurality of screens sequentially disposed around the circumference thereof, the mesh sizes of a plurality of said screens being different;

the openings are formed between adjacent filter screens at intervals.

8. The dry granulation apparatus as set forth in claim 7, further comprising a frame, wherein the granulation system is disposed on the frame, and a driving motor is disposed on the frame, and an output shaft of the driving motor is in driving connection with the filter cartridge, so as to drive the filter cartridge to reciprocally rotate within a preset angle.

9. The dry granulation apparatus as set forth in claim 1, further comprising a receiving box provided at the bottom of the granulation system, a screen provided at the top of the receiving box, and having a smaller pore size than the filter cartridge.

10. The dry granulation apparatus as claimed in claim 9, wherein a chute is provided on a side wall of the receiving box, a receiving plate opposite to the chute is provided in the receiving box, and the screen is slidably fitted in the chute and is overlapped with the receiving plate.

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