CN214438825U

CN214438825U - Fluidized bed granulator

Info

Publication number: CN214438825U
Application number: CN202120010180.7U
Authority: CN
Inventors: 吴天音; 侯旻; 孙飞龙; 丁莹
Original assignee: Anhui Shangmeixuan Biotechnology Co ltd
Current assignee: Wuhu Qingxing Sports Technology Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-10-22
Anticipated expiration: 2031-01-04

Abstract

The application relates to a fluidized bed granulator, which relates to the field of granulators and comprises a granulation box and a storage box arranged on one side of the granulation box; a filter bag is arranged in the granulating tank; the granulating box is provided with a cleaning device; the cleaning device comprises an upright post fixed at the top of the granulating box; two upright posts are arranged at intervals; the opposite sides of the two upright posts are both connected with sliding rods in a sliding manner; the lower ends of the slide bars penetrate through the top of the granulating box, and a movable plate for beating the filter bag is connected between the end parts of the two slide bars penetrating through the top of the granulating box; the upright post is provided with a driving assembly for driving the sliding rod to stretch and retract; and the upright post is provided with a reset assembly for driving the slide rod to reset. This application has the effect of being convenient for clear up the interior filter bag of pelletization incasement.

Description

Fluidized bed granulator

Technical Field

The application relates to the field of granulators, in particular to a fluidized bed granulator.

Background

At present, the fluidized bed granulation method is a method in which the powder of a drug is kept in a suspended fluidized state by the action of air flow from bottom to top, and a binder liquid is sprayed into a fluidizing chamber from the upper part or the lower part to agglomerate the powder into particles.

The existing fluidized bed granulation process is to mix with materials in the air outlet process, and the traditional filtering work usually adopts a cloth bag filtering device, and the cloth bag filtering device is connected into the air outlet pipe, so that the air is filtered through the cloth bag filtering device during the air discharge.

Aiming at the related technologies, the inventor thinks that the cloth bag is used for filtering, materials are adhered to the cloth bag, and the cloth bag is inconvenient to clean after being used for a long time.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the clearance is not convenient for to filter the sack, this application provides a fluidized bed granulator.

The application provides a fluidized bed granulator adopts following technical scheme:

a fluidized bed granulator comprises a granulation box and a material storage box arranged on one side of the granulation box; a filter bag is arranged in the granulating tank; the granulating box is provided with a cleaning device; the cleaning device comprises an upright post fixed at the top of the granulating box; two upright posts are arranged at intervals; the opposite sides of the two upright posts are both connected with sliding rods in a sliding manner; the lower ends of the slide bars penetrate through the top of the granulating box, and a movable plate for beating the filter bag is connected between the end parts of the two slide bars penetrating through the top of the granulating box; the upright post is provided with a driving assembly for driving the sliding rod to stretch and retract; and the upright post is provided with a reset assembly for driving the slide rod to reset.

Through adopting above-mentioned technical scheme, after pelletize in the pelletization incasement, the granule that the part floated can the adhesion on crossing the filter bag, through starting drive assembly for drive assembly drives the slide bar and removes along the direction of height of stand, thereby can make the fly leaf pat the filter bag, makes the material of adhesion can fall down on the filter bag, realizes conveniently clearing up the filter bag, improves the work efficiency of granulator.

Preferably, the driving assembly comprises a rotating shaft which is rotatably connected between the two upright posts; one side of one upright post, which is far away from the other upright post, is provided with a motor; an output shaft of the motor penetrates through the upright post and is fixed with the end part of the rotating shaft; the rotating shaft is provided with a cam; and a driving rod abutted against the cam is connected between the two sliding rods.

Through adopting above-mentioned technical scheme, the starter motor for the motor drive pivot rotates, and the epaxial cam that rotates, and the tip and the actuating lever butt of cam can promote the slide bar along one section distance of the downward vertical removal of direction of height of stand, and the motor drives the cam and continues to rotate the back, under the effect of the subassembly that resets, can make the slide bar automatic lift up, thereby can be intermittent type pat the clearance to crossing the filter bag.

Preferably, one opposite side of the two upright posts is provided with a sliding groove; the length direction of the sliding groove is consistent with the height direction of the upright post; the driving assembly comprises a sliding block arranged in the sliding groove in a sliding mode and a return spring for connecting the sliding block and the bottom of the sliding groove; one side of the sliding block is fixedly connected with the sliding rod.

Through adopting above-mentioned technical scheme, keep away from the actuating lever at the tip of cam after, can make the slide bar rise along the direction of height of stand is automatic under reset spring's effect, and then pat the filter bag.

Preferably, the inner bottom wall of the granulating tank is provided with a heater and a first suction pump; the upper end of the heater is provided with a spray head; the air inlet of the first air pump is communicated with the outside of the granulating tank, and the air outlet of the first air pump is communicated with the heater; a fluidized bed is arranged in the granulating box and above the spray head; a feeding pipe is arranged at one side of the granulating box and between the filter bag and the fluidized bed; a liquid material tank is arranged on the other side of the granulating tank; a material suction pump is arranged on the lower end face of the liquid material tank; the material suction pump is communicated with the granulating tank through a pipeline; the lateral wall of pelletization case is provided with the second aspiration pump, the second aspiration pump is linked together with the pelletization incasement and is located the cavity of crossing the filter bag top.

Through adopting above-mentioned technical scheme, inhale the material pump and mix the material that the inlet pipe got into in the pelletization case with the material suction of liquid material incasement, glue and glue into the granule, first aspiration pump is with air suction to the pelletization incasement this moment, and the air is through the heating of heater, gets into the pelletization incasement and dries the granule, and the second aspiration pump is taken out the gas of pelletization incasement. A part of material is stuck in the below of crossing the filter bag by the filter bag separation, through cleaning device, can beat the filter bag to can shake the granule of gluing on the filter bag and fall.

Preferably, an air inlet is formed in the side wall of the granulating box, which is close to the bottom; a filter screen is arranged at the air inlet; and the air inlet of the first air pump is communicated with the air inlet.

Through adopting above-mentioned technical scheme, go out at the air intake and set up the filter screen, can effectively block that the dust that mix with in the air enters into the pelletization case, influences the purity of the granule of making.

Preferably, an installation frame is fixed at the air inlet; the mounting frame comprises a first mounting strip fixed at the air inlet; two first mounting strips are arranged at intervals along the height direction of the granulating box; a second mounting bar is connected between the two first mounting bars, two second mounting bars are arranged, and the two second mounting bars are respectively close to two ends of the first mounting bars; one side of the second mounting strip, which is far away from the air inlet, is provided with a first mounting groove; one side of the first mounting groove penetrates through the side wall of the second mounting bar; one side of the other second mounting strip, which is close to the air inlet, is provided with a second mounting groove; a through groove communicated with the first mounting groove and the second mounting groove is formed in the first mounting strip; the filter screen penetrates through the first mounting groove and is inserted into the second mounting groove; the cell wall that leads to the groove is provided with the fixed subassembly that is used for fixed filter screen.

Through adopting above-mentioned technical scheme, set the filter screen to detachable structure, can be convenient for regularly dismantle the filter screen and get off and wash, reduce the possibility that the filter screen is blockked up. The filter screen is directly inserted into the mounting frame from one side of the mounting frame, and when the first air extracting pump is started, the filter screen can be fixed firmly and is not easy to loosen.

Preferably, a clamping groove is formed in the position, close to the upper end, of one side, far away from the granulating box, of the filter screen; the wall of the through groove is provided with a movable groove; the fixed component comprises a fixture block which is arranged in the movable groove in a sliding way and a connecting spring which is used for connecting the fixture block and the wall of the movable groove; and one end of the clamping block, which is far away from the connecting spring, is clamped and matched with the clamping groove.

Through adopting above-mentioned technical scheme, when pushing into the second mounting groove with the filter screen in from first mounting groove, the filter screen is located the part that leads to the inslot and extrudees the fixture block for the fixture block retracts to the activity inslot, and after the filter screen grafting, the draw-in groove aligns with the activity groove, under coupling spring's effect, makes the fixture block stretch out and cooperate with the draw-in groove joint, thereby accomplishes the fixed to the filter screen. When the filter screen is detached, the filter screen is pulled to one side far away from the second mounting groove, so that the side wall of the filter screen abuts against the clamping block in the movable groove, and the filter screen can be separated from the fixed component.

Preferably, a sealing door is arranged on one side of the storage box; a material storage plate is fixed in the material storage box; a discharge hole communicated with the material storage box is formed in one side of the granulating box; a sealing plate is arranged at the discharge port; a driving cylinder is arranged on the material storage box; a piston rod of the air cylinder is fixedly connected with the upper end face of the sealing plate; a partition plate is fixed in the material storage box; a third air pump is arranged below the partition plate; and an air inlet of the third air pump is communicated with the cavity above the partition plate, and an air outlet of the third air pump is communicated with the outside of the storage box.

Through adopting above-mentioned technical scheme, set up sealing door, can be convenient for take out the granule that prepares. Set up the discharge gate, can be convenient for take out the preservation with the granule after the pelletization, drive actuating cylinder through the start-up for drive actuating cylinder and drive the closing plate and keep away from the discharge gate, make the discharge gate open, thereby can take out the material through the third aspiration pump in the storage case.

Preferably, a guide plate is arranged in the material storage box; one side of the guide plate close to the granulating box is attached to one side of the sealing plate; the lower end face of the guide plate is flush with the top wall of the discharge hole.

Through adopting above-mentioned technical scheme, set up the deflector, can restrict the movement track of closing plate, stability when improving the sealing door and removing, and when the discharge gate was plugged up to the closing plate, the deflector can laminate with the closing plate for the closing plate can stably laminate and seal in discharge gate department.

In summary, the present application includes at least one of the following beneficial technical effects:

after granulation is carried out in the granulation box, part of floating particles can be adhered to the filter bag, the driving component drives the sliding rod to move along the height direction of the upright column by starting the driving component, so that the movable plate can flap the filter bag, materials adhered to the filter bag can fall down, and the filter bag can be conveniently cleaned;

the small end of the cam is abutted to the driving rod, the sliding rod can be pushed to vertically move downwards for a certain distance along the height direction of the stand column, and after the motor drives the cam to continuously rotate, the sliding rod can be automatically lifted up under the action of the reset assembly, so that the filter bag can be intermittently flapped and cleaned;

the filter screen is arranged at the outlet of the air inlet, so that dust mixed in the air can be effectively prevented from entering the granulating box, and the purity of the prepared particles is influenced.

Drawings

Fig. 1 is a schematic structural diagram of the whole of the embodiment of the present application.

Fig. 2 is a schematic view of the installation position of the liquid material tank according to the embodiment of the present application.

Fig. 3 is a schematic view of an installation structure of a filter screen according to an embodiment of the present application.

Description of reference numerals: 1. a granulation box; 11. a discharge port; 12. a filter bag; 13. a heater; 131. a spray head; 14. a first air pump; 15. a feed pipe; 16. a liquid material tank; 161. a suction pump; 17. a second air pump; 18. an air inlet; 19. a fluidized bed; 2. a material storage box; 21. a sealing door; 22. a sealing plate; 23. a driving cylinder; 24. a guide plate; 25. a partition plate; 26. a third air pump; 27. a filter plate; 3. installing a frame; 31. a first mounting bar; 32. a second mounting bar; 33. a first mounting groove; 34. a second mounting groove; 35. a through groove; 351. a movable groove; 4. a filter screen; 41. a card slot; 5. a fixing assembly; 51. a clamping block; 52. a connecting spring; 6. a cleaning device; 61. a column; 611. a chute; 62. a slide bar; 63. a drive assembly; 631. a rotating shaft; 632. a motor; 633. a cam; 634. a drive rod; 64. a reset assembly; 641. a slider; 642. a return spring; 65. a movable plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a fluidized bed granulator. Referring to fig. 1, a fluidized bed granulator includes pelletization case 1 and storage case 2, and discharge gate 11 has been seted up to one side that pelletization case 1 is close to storage case 2, and discharge gate 11 makes pelletization case 1 and storage case 2 be linked together.

Referring to fig. 1 and 2, a filter bag 12 is fixed in a granulation tank 1, a heater 13 and a first suction pump 14 are fixed to an inner bottom wall of the granulation tank 1, a plurality of nozzles 131 are fixed to an upper end of the heater 13, and a fluidized bed 19 is fixed in the granulation tank 1 above the nozzles 131. A feeding pipe 15 is fixed on one side of the granulating tank 1 and positioned between the filter bag 12 and the fluidized bed 19 and used for feeding powdery materials, a liquid material tank 16 is fixed on the other side of the granulating tank 1, a suction pump 161 is fixedly installed on the lower end face of the liquid material tank 16, an inlet of the suction pump 161 is communicated with the liquid material tank 16, and an outlet of the suction pump 161 is communicated with the granulating tank 1 through a pipeline. A second air pump 17 is fixed on the outer side wall of the granulating tank 1, and the second air pump 17 is communicated with a cavity which is arranged in the granulating tank 1 and is positioned above the filter bag 12.

Referring to fig. 1 and 3, an air inlet 18 is formed in a position on the side wall of the granulation tank 1 and near the bottom, an air inlet of the first air pump 14 is communicated with the air inlet 18, and an air outlet of the first air pump 14 is communicated with the heater 13. Air intake 18 department is fixed with installing frame 3, installing frame 3 includes first mounting bar 31 and second mounting bar 32, first mounting bar 31 is provided with two along the direction of height interval of pelletization case 1, and a first mounting bar 31 is fixed in the upside of air intake 18, another first mounting bar 31 is fixed in the downside of air intake 18, the both ends of second mounting bar 32 respectively with two first mounting bar 31 one side fixed connection in opposite directions, second mounting bar 32 is provided with two, and two second mounting bars 32 are close to the both ends of first mounting bar 31 respectively. One side of one second mounting bar 32, which is far away from the air inlet 18, is provided with a first mounting groove 33, one side of the first mounting groove 33 is penetrated through the side wall of the second mounting bar 32, one side of the other second mounting bar 32, which is close to the air inlet 18, is provided with a second mounting groove 34, the first mounting bar 31 is provided with a through groove 35 communicating the first mounting groove 33 with the second mounting groove 34, and the wall of the through groove 35 is penetrated through the side wall of the first mounting bar 31. There is filter screen 4 in the interpolation of installing frame 3 for the filter effect to the suction air improves, and first mounting groove 33 and plug in second mounting groove 34 are passed to one side of filter screen 4, and the upside of filter screen 4 is pegged graft in logical groove 35.

Referring to fig. 3, the fixing member 5 is installed on the wall of the through groove 35 to fix the filter screen 4. The filter screen 4 is far away from one side of pelletization case 1 and has been seted up draw-in groove 41 near the position of upper end, and movable groove 351 has been seted up to the cell wall that leads to groove 35, and fixed subassembly 5 includes fixture block 51 and connecting spring 52, and fixture block 51 sliding connection is in movable groove 351, and the both ends of connecting spring 52 are fixed connection fixture block 51 and the cell wall of movable groove 351 respectively. One end of the fixture block 51, which is far away from the connecting spring 52, is in clamping fit with the clamping groove 41, and one end of the fixture block 51, which is far away from the connecting spring 52, is in a hemispherical shape, so that the filter can be separated from the fixing component 5 when the filter screen 4 is pushed or pulled forcefully.

Referring to fig. 1, a cleaning device 6 is installed on a granulation tank 1 and used for cleaning a filter bag 12, the cleaning device 6 includes two upright posts 61, two sliding rods 62, a driving assembly 63 and a reset assembly 64, the upright posts 61 are fixed on the top of the granulation tank 1, the upright posts 61 are arranged at intervals along the length direction of the granulation tank 1, the sliding rods 62 are slidably connected to one side of one upright post 61 close to the other upright post 61, the lower ends of the sliding rods 62 penetrate through the top of the granulation tank 1, a movable plate 65 is connected between the two ends of the two sliding rods 62 penetrating through the top of the granulation tank 1, the side wall of the movable plate 65 is in sliding fit with the inner side wall of the granulation tank 1, the driving assembly 63 is installed on the upright post 61, the driving assembly 63 includes a rotating shaft 631, a motor 632, a cam 633 and a driving rod 634, the rotating shaft 631 is rotatably connected between the two upright posts 61, and the rotating shaft 631 is close to the upper end of the upright post 61. The motor 632 is fixedly mounted on one side of the one upright 61 away from the other upright 61, an output shaft of the motor 632 passes through the upright 61 and is fixed to an end of the rotating shaft 631, the cam 633 is fixed to the rotating shaft 631 and located at a middle position of the rotating shaft 631, the driving rod 634 is fixed between the two sliding rods 62, and the cam 633 abuts against the sliding rods 62. The opposite sides of the two upright posts 61 are provided with sliding grooves 611, the length direction of the sliding grooves 611 is consistent with the height direction of the upright posts 61, the return assembly 64 comprises a sliding block 641 and a return spring 642, the sliding block 641 is slidably connected in the sliding grooves 611, two ends of the return spring 642 are respectively fixedly connected with the sliding block 641 and the groove bottom of the sliding grooves 611, and one side of the sliding block 641 away from the sliding grooves 611 is fixedly connected with the sliding rod 62.

Referring to fig. 1 and 2, a detachable sealing door 21 is installed on one side of a storage box 2, a sealing plate 22 is slidably connected to a discharge port 11, a driving cylinder 23 is fixedly installed on the storage box 2, a piston rod of the driving cylinder 23 penetrates through the top of the storage box 2 and is fixedly connected with the upper end face of the sealing plate 22, a guide plate 24 is fixed in the storage box 2, when the sealing plate 22 blocks the discharge port 11, one side of the guide plate 24 close to a granulation box 1 is attached to one side of the sealing plate 22, the discharge port 11 is far away from the driving sealing plate 22, and when the discharge port 11 is completely opened, the lower end face of the guide plate 24 is flush with the top wall of the discharge port 11. The baffle 25 that the level set up is fixed with in the storage case 2, and the baffle 25 is located the below of discharge gate 11, is fixed with third aspiration pump 26 on the interior diapire of storage case 2, and the air inlet of third aspiration pump 26 communicates with the cavity of baffle 25 top, and the gas outlet and the storage case 2 outside intercommunication of third aspiration pump 26, just is located one side that third aspiration pump 26 is close to discharge gate 11 and is fixed with filter 27 in baffle 25 top.

The implementation principle of the fluid bed granulator in the embodiment of the application is as follows: during the use, the material passes through the inlet pipe 15 and gets into in the pelletization case 1, and the material pump 161 says that the material in the liquid material spouts in the pelletization case 1, mixes, glues glutinous into the granule, and partly mixture material can adhere on crossing filter bag 12, and first aspiration pump 14 extracts the air and gets into heater 13 this moment, heats the back and spout through shower nozzle 131, heats fluidized bed 19 to can dry the granule. Fly leaf 65 is close to the top of pelletization case 1 for second aspiration pump 17 can take out the air in the pelletization case 1, when taking out, partly mixed material can be filtered the separation of bag 12 and the adhesion on filtering the bag 12, pelletization back that finishes, through opening motor 632, make motor 632 drive cam 633 rotate, cam 633 supports the pressure to actuating lever 634, make slide bar 62 remove along the direction of height of stand 61, thereby can pat filter bag 12, make the material of adhesion can drop on filtering bag 12, make filter bag 12 keep clean unobstructed. After the pelletization finishes, the cylinder drives closing plate 22 and removes for closing plate 22 opens, through starting third aspiration pump 26, can block the material and be taken away under the effect of filter 27 with the granule suction storage case 2 in the pelletization case 1.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A fluidized bed granulator is characterized in that: comprises a granulation box (1) and a storage box (2) arranged on one side of the granulation box (1); a filter bag (12) is arranged in the granulating tank (1); a cleaning device (6) is arranged on the granulating tank (1); the cleaning device (6) comprises an upright post (61) fixed at the top of the granulating tank (1); two upright posts (61) are arranged at intervals; one opposite sides of the two upright posts (61) are both connected with a sliding rod (62) in a sliding manner; the lower ends of the sliding rods (62) penetrate through the top of the granulating tank (1), and a movable plate (65) for beating the filter bags (12) is connected between the two ends of the sliding rods (62) penetrating through the top of the granulating tank (1); the upright post (61) is provided with a driving assembly (63) for driving the sliding rod (62) to stretch and retract; the upright post (61) is provided with a resetting component (64) for driving the sliding rod (62) to reset.

2. The fluid bed granulator according to claim 1, wherein: the driving assembly (63) comprises a rotating shaft (631) which is rotatably connected between the two upright posts (61); one side of one upright post (61) far away from the other upright post (61) is provided with a motor (632); an output shaft of the motor (632) penetrates through the upright post (61) and is fixed with the end part of the rotating shaft (631); a cam (633) is arranged on the rotating shaft (631); and a driving rod (634) abutted against the cam (633) is connected between the two slide bars (62).

3. The fluid bed granulator according to claim 1, wherein: one opposite side of the two upright posts (61) is provided with a sliding groove (611); the length direction of the sliding groove (611) is consistent with the height direction of the upright post (61); the reset assembly (64) comprises a sliding block (641) arranged in the sliding groove (611) in a sliding mode and a reset spring (642) connecting the sliding block (641) and the groove bottom of the sliding groove (611); one side of the sliding block (641) is fixedly connected with the sliding rod (62).

4. The fluid bed granulator according to claim 1, wherein: the inner bottom wall of the granulating tank (1) is provided with a heater (13) and a first air pump (14); the upper end of the heater (13) is provided with a spray head (131); an air inlet of the first air pump (14) is communicated with the outside of the granulating tank (1), and an air outlet of the first air pump (14) is communicated with the heater (13); a fluidized bed (19) is arranged in the granulating box (1) and above the spray head (131); a feeding pipe (15) is arranged at one side of the granulating box (1) and between the filter bag (12) and the fluidized bed (19); a liquid material tank (16) is arranged on the other side of the granulating tank (1); a material suction pump (161) is arranged on the lower end surface of the liquid material tank (16); the material suction pump (161) is communicated with the granulating tank (1) through a pipeline; the lateral wall of pelletization case (1) is provided with second aspiration pump (17), second aspiration pump (17) and pelletization incasement (1) just are located the cavity of filter bag (12) top and are linked together.

5. The fluid bed granulator according to claim 4, wherein: an air inlet (18) is formed in the side wall of the granulating box (1) close to the bottom; a filter screen (4) is arranged at the air inlet (18); and the air inlet of the first air suction pump (14) is communicated with the air inlet (18).

6. The fluid bed granulator according to claim 5, wherein: the air inlet (18) is fixedly provided with an installation frame (3); the mounting frame (3) comprises a first mounting strip (31) fixed at the air inlet (18); two first mounting strips (31) are arranged at intervals along the height direction of the granulating box (1); a second mounting bar (32) is connected between the two first mounting bars (31), two second mounting bars (32) are arranged, and the two second mounting bars (32) are respectively close to two ends of the first mounting bars (31); one side, far away from the air inlet (18), of the second mounting strip (32) is provided with a first mounting groove (33); one side of the first mounting groove (33) penetrates through the side wall of the second mounting bar (32); one side of the other second mounting strip (32) close to the air inlet (18) is provided with a second mounting groove (34); a through groove (35) communicated with the first mounting groove (33) and the second mounting groove (34) is formed in the first mounting strip (31); the filter screen (4) penetrates through the first mounting groove (33) and is inserted into the second mounting groove (34); and a fixing component (5) for fixing the filter screen (4) is arranged on the groove wall of the through groove (35).

7. The fluid bed granulator according to claim 6, wherein: a clamping groove (41) is formed in one side, far away from the granulating box (1), of the filter screen (4) and close to the upper end of the filter screen; the groove wall of the through groove (35) is provided with a movable groove (351); the fixing component (5) comprises a clamping block (51) arranged in the movable groove (351) in a sliding mode and a connecting spring (52) for connecting the clamping block (51) and the groove wall of the movable groove (351); one end of the clamping block (51) far away from the connecting spring (52) is in clamping fit with the clamping groove (41).

8. The fluid bed granulator according to claim 1, wherein: a sealing door (21) is arranged on one side of the material storage box (2); a material storage plate is fixed in the material storage box (2); a discharge hole (11) communicated with the material storage box (2) is formed in one side of the granulating box (1); a sealing plate (22) is arranged at the discharge hole (11); a driving cylinder (23) is arranged on the material storage box (2); a piston rod of the cylinder is fixedly connected with the upper end face of the sealing plate (22); a partition plate (25) is fixed in the material storage box (2); a third air suction pump (26) is arranged below the partition plate (25); and an air inlet of the third air pump (26) is communicated with the cavity above the partition plate (25), and an air outlet of the third air pump (26) is communicated with the outside of the storage tank (2).

9. The fluid bed granulator according to claim 7, wherein: a guide plate (24) is arranged in the material storage box (2); one side of the guide plate (24) close to the granulating box (1) is attached to one side of the sealing plate (22); the lower end surface of the guide plate (24) is flush with the top wall of the discharge hole (11).