CN210022039U - Granulating machine - Google Patents

Abstract

The utility model relates to a granulator, including mounting bracket and the ejection of compact cylinder of installing on the mounting bracket, be provided with the discharge opening on the ejection of compact cylinder, ejection of compact cylinder intercommunication has feed arrangement, is connected with drive arrangement on the ejection of compact cylinder, and ejection of compact cylinder's below is provided with receiving device, is provided with the ejection of compact axle in the ejection of compact cylinder, is provided with the storage silo in the ejection of compact axle, and the epaxial recess that caves in of ejection of compact is provided with the apron on the recess, and a plurality of through-holes have been seted up to the apron, are. Through the butt between elastic component and the apron for the material that flows out in the through-hole is difficult for being detained in discharging roller or flows in discharging roller and the butt department of apron, causes the waste of material, and is further, and the material that falls discharging roller inside is difficult for solidifying the jam on the discharge opening because of having broken away from heat retaining environment after, influences discharging roller's normal ejection of compact, reduces the cost of later stage clearance.

Description

Granulating machine

Technical Field

The utility model belongs to the technical field of the granulator technique and specifically relates to a granulator.

Background

Conventionally, when a material in a molten state is made into a granulated material, granulation is generally performed using a granulator.

Refer to the division that the publication is CN 1066006A's reference file discloses and give device of flowable substance, install the cylinder that is the cavity setting on the mounting bracket including mounting bracket and rotation, evenly be provided with a plurality of discharge openings around the circumference of cylinder on the cylinder, be provided with the receiving device who accepts the material that flows from the cylinder under the cylinder, be provided with the condensing equipment who is used for cooling off the material directly over receiving device, the inside of cylinder is provided with the material groove, the intercommunication has feed arrangement on the material groove, be provided with the through-hole that supplies material flow direction discharge opening on the material groove, there is heat preservation device with material groove parallel arrangement in the cylinder. When the granulator works, the feeding device conveys materials into the material groove, the materials in the material groove are sprayed to the discharge hole from the through hole under the action of pressure, and the materials further fall onto the material receiving device and then are solidified into solid granular materials by the condensation action of the condensing device in a molten state.

The above prior art solutions have the following drawbacks: when the material is in the material granulation shaping with molten state, because of the high melting material solidifies easily, the material often glues easily on internal parts, influences the normal extrusion of material, often needs wash in order to resume normal ejection of compact to the inside of cylinder, influences the efficiency of granulation, needs improve this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a granulator has the advantage that improves granulation efficiency.

The above object of the present invention can be achieved by the following technical solutions:

a granulator comprises a mounting frame and a hollow discharging roller rotatably mounted on the mounting frame, wherein a plurality of discharging holes are formed in the discharging roller, the discharging roller is communicated with a feeding device, a driving device used for driving the discharging roller to rotate is connected to the discharging roller, a material receiving device is arranged below the discharging roller, a discharging shaft which is static relative to the mounting frame is arranged in the discharging roller, a material storage bin is arranged in the discharging shaft, a groove which is opened towards the material receiving device is sunken in the discharging shaft, the groove is communicated with the material storage bin, a cover plate used for sealing the groove is arranged on the groove, a gap is reserved between the cover plate and the bottom of the groove, a plurality of through holes are formed in the cover plate, an elastic piece used for driving the cover plate to abut against the inner side wall of the discharging roller is arranged in the groove, and a passage for materials is formed in the elastic piece, and a sealing element is arranged on the cover plate and seals a gap between the cover plate and the side wall of the groove.

Through adopting above-mentioned technical scheme, in feed arrangement conveyed the material to the storage silo, the clearance department between recess tank bottom and the apron was filled to the material in the storage silo under the effect of pressure, and when the discharge opening alignment on through-hole and the ejection of compact cylinder in the rotation, the material was extruded and is fallen on receiving device. Through the butt between elastic component and the apron for the material that flows out in the through-hole is difficult for being detained in discharging roller or flows in discharging roller and the butt department of apron, causes the waste of material, and is further, and the material that falls discharging roller inside is difficult for solidifying the jam on the discharge opening because of having broken away from heat retaining environment after, influences discharging roller's normal ejection of compact, reduces the cost of later stage clearance. After the material in the storage silo is pressed to the through-hole, can know by bernoulli's theorem, the runner that the material passed through becomes little, and through-hole internal pressure grow, the material obtains sufficient acceleration and spouts to the discharge opening, reaches the purpose of smooth ejection of compact. Have certain elasticity through elastic component itself, when ejection of compact cylinder or ejection of compact axle produced great vibrations, the elastic component has the effect of certain buffering between apron and recess for the apron remains throughout to support ejection of compact cylinder's inside wall, guarantees normal ejection of compact. The sealing element is used for sealing the gap between the cover plate and the side wall of the groove, so that the pressure intensity of the gap between the cover plate and the bottom of the groove is greater than the pressure intensity outside the groove, the material can be smoothly extruded to the through hole from the discharging shaft, and discharging is further completed.

The utility model discloses further set up to: the groove is arranged along the length direction of the discharging shaft in a concave mode.

Through adopting above-mentioned technical scheme, through the recess that sunken direction is unanimous with ejection of compact axle direction, can fill completely in whole strip recess from the material that storage silo department flows for when ejection of compact cylinder ejection of compact, guarantee to fill full material throughout in the through-hole so that the material that enters into the through-hole has sufficient acceleration to spout to the discharge opening in the ejection of compact time, ejection of compact cylinder's ejection of compact is respond well.

The utility model discloses further set up to: the groove is provided with a material passing groove communicated with the storage bin and the groove.

Through adopting above-mentioned technical scheme, lead to the silo through the setting, make the material that enters into the storage silo from receiving device flow into the recess again after leading to the silo earlier with higher speed, make the material that arrives in the recess have a pressure flow direction through-hole department, the outflow that the material can be smooth, simultaneously, lead to the silo to the material volume that enters into in the recess at every turn have the effect of control, be difficult for making the material that enters into the storage silo from the feed arrangement in all gush the clearance department between recess and ejection of compact axle, influence extruding of material.

The utility model discloses further set up to: the elastic piece is arranged on the material passing groove.

Through adopting above-mentioned technical scheme, the inside wall through leading to the silo is to the spacing effect of elastic component, reduces the elastic component and rocks in the orientation of parallel apron, keeps its elasticity at vertical orientation apron orientation, and the apron supports all the time on the inside wall of ejection of compact cylinder.

The utility model discloses further set up to: the diameter of the material passing groove is larger than that of the through hole.

Through adopting above-mentioned technical scheme, the material obtains acceleration once more when passing through the through-hole, and the acceleration of material in the through-hole is greater than the acceleration that leads to silo department, and the speed when the material passes through the through-hole is great than the speed when the material passes through logical silo, and the big silo that leads to of through-hole can provide abundant material in order to supply the continuous ejection of compact of through-hole, further makes the material of extruding in the follow ejection of compact cylinder even and keep lasting the ejection of compact.

The utility model discloses further set up to: the cover plate and one side of the discharge roller, which is abutted against, are sunken to form a strip groove with the length direction consistent with that of the cover plate, and the through hole is formed in the groove bottom of the strip groove.

Through adopting above-mentioned technical scheme, the directional effect of lateral wall through the strip groove to the material that jets out from the through-hole for the material remains the direction of vertical orientation discharge opening all the time, at the in-process of apron butt storage bucket inside wall, probably solidify between the inside wall of apron and ejection of compact cylinder has partial material, through setting up certain interval between through-hole and the discharge opening, make at ejection of compact cylinder pivoted in-process, the material is difficult for stifled in through-hole department, influences normal ejection of compact.

The utility model discloses further set up to: the through holes are uniformly arranged at intervals along the length direction of the cover plate.

Through adopting above-mentioned technical scheme, through the through-hole that sets up along apron length direction for all can the ejection of compact on the length direction of apron, and fall the material evenly distributed on the receiving device, two adjacent materials are difficult for gluing together, influence the granulation of material.

The utility model discloses further set up to: the side face of the side wall, close to the groove, of the cover plate is provided with a through groove in a recessed mode, the end of the through groove is closed, the sealing element comprises a sealing ring, and the sealing ring is sleeved on the through groove.

Through adopting above-mentioned technical scheme, through sunken logical groove in the side of apron, fix the sealing washer on leading to the groove for when the apron motion, the sealing washer remains sealed all the time between the side of apron and the lateral wall of recess, with the diapire that keeps apron and recess between pressure be greater than the outside pressure of recess all the time.

The utility model discloses further set up to: the material scraping device is installed on the mounting frame and comprises a material scraping plate, and the material scraping plate is attached to the discharging roller.

Through adopting above-mentioned technical scheme, be face contact through the contact between scraper blade and the ejection of compact cylinder for the scraper blade can carry out lasting friction to the material of the same department in surface of ejection of compact cylinder, scrapes away the material with the material on the discharge opening in ejection of compact cylinder constantly pivoted in-process, and on the discharge opening was difficult to being plugged up to the material, the outflow that the material can be normal.

The utility model discloses further set up to: the mounting bracket is provided with an adjusting plate horizontally facing the direction of the scraping plate, the scraping plate is connected with one end, far away from the mounting bracket, of the adjusting plate, and the adjusting plate is provided with an adjusting assembly for driving the scraping device to be attached to the outer wall of the discharging roller.

Through adopting above-mentioned technical scheme, scrape the flitch after using a period, because the effect of scraping the friction between flitch and the discharging roller for scrape and produce certain interval between flitch and the discharging roller, adjust the interval of scraping between flitch and the discharging roller through adjusting part, make and scrape the flitch and laminate discharging roller once more, keep scraping the good material effect of scraping of flitch to discharging roller.

To sum up, the utility model discloses a beneficial technological effect does:

1. through the butt joint between the elastic piece and the cover plate, materials flowing out of the through hole are not easy to be retained in the discharging roller or flow into the butt joint between the discharging roller and the cover plate, so that the waste of the materials is caused, and further, the materials falling into the discharging roller are not easy to be solidified and blocked on the discharging hole after being separated from a heat-insulating environment, so that the normal discharging of the discharging roller is influenced, and the cost of later-stage cleaning is reduced; sealing a gap between the cover plate and the side wall of the groove by using a sealing element, so that the pressure intensity of the gap between the cover plate and the bottom of the groove is greater than the pressure intensity outside the groove, the material can be smoothly extruded to the through hole from the discharging shaft, and the discharging is further finished;

2. through the grooves with the recess direction consistent with the discharge shaft direction, the material flowing out of the storage bin can be completely filled in the whole groove, so that when the discharge roller discharges materials, the materials falling on the material receiving device are more and uniform, and the granulation quantity is better;

3. through the arrangement of the material passing groove, materials entering the storage bin from the material receiving device flow into the groove after being accelerated in the material passing groove, so that the materials reaching the groove have a pressure flow to the through hole, the materials can flow out smoothly, meanwhile, the material passing groove has a control effect on the amount of the materials entering the groove every time, and the materials entering the storage bin from the material receiving device cannot easily flow into the gap between the groove and the discharging shaft, so that extrusion materials are influenced;

4. through the limiting effect of the inner side wall of the material passing groove on the elastic part, the shaking of the elastic part in the direction parallel to the cover plate is reduced, the elasticity of the elastic part in the direction vertical to the cover plate is kept, and the cover plate always abuts against the inner side wall of the discharging roller;

5. the contact between the scraper and the discharging roller is surface contact, so that the scraper can continuously rub the material on the same position of the surface of the discharging roller, the material on the discharging hole is scraped away in the continuous rotating process of the discharging roller, the material is not easy to plug the discharging hole, and the material can normally flow out.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

FIG. 3 is an enlarged schematic view of B in FIG. 2;

FIG. 4 is a schematic view showing the installation of the driving device in the present embodiment;

FIG. 5 is an exploded view of the tapping roller according to this embodiment;

fig. 6 is an enlarged schematic view of C in fig. 5.

In the figure, 1, a discharging roller; 2. a mounting frame; 3. a discharge hole; 4. a drive device; 5. a material receiving device; 6. discharging the material shaft; 61. a storage bin; 62. a groove; 63. an air outlet; 64. an air inlet; 65. an air outlet pipe; 66. an air inlet pipe; 7. a condensing unit; 8. a cover plate; 81. a through hole; 9. an elastic member; 21. a support frame; 22. a fixing plate; 23. a fixed block; 24. a support bar; 41. a drive motor; 42. a driving gear; 43. a driven gear; 44. a chain; 10. a protective shell; 11. a material feeding groove; 12. a strip groove; 13. a through groove; 14. a scraping device; 141. a scraping plate; 142. an adjusting plate; 15. a horizontal axis; 16. a circular ring; 17. a feed pipe; 18. an adjustment assembly; 181. angle steel; 182. bolts, 183, nuts; 184. an adjustment hole; 185. an adjusting block; 186. positioning holes; 19. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a granulator, connect including mounting bracket 2 and rotation and be hollow discharging roller 1 on mounting bracket 2, discharging roller 1 is last to be provided with a plurality of discharge openings 3, and discharging roller 1 is connected with and is used for driving discharging roller 1 pivoted drive arrangement 4, and discharging roller 1 is close to one side on ground and installs receiving device 5 that is used for connecing the material, is provided with condensing equipment 17 directly over receiving device 5. A discharging shaft 6 is arranged in the discharging roller 1, and the discharging shaft 6 is static relative to the mounting frame 2.

Referring to fig. 1 and 2, the mounting frame 2 includes two support frames 21 installed on the ground, each of the two support frames 21 is located on one side of the length direction of the discharging roller 1, a support rod 24 is fixed on each support frame, and a fixing plate 22 vertically placed is fixedly connected to each support rod 24.

The mounting frame 2 is provided with a scraping device 14, the scraping device 14 comprises a scraping plate 141 and an adjusting plate 14, the scraping plate 141 is attached to the discharging roller 1, a cylindrical cross shaft 15 is fixed between two fixing plates 22, the adjusting plate 142 is fixed on the cross shaft 15, and the adjusting plate 142 is provided with an adjusting component 18 for driving the scraping plate 141 to be attached to the outer wall of the discharging roller 1.

The adjusting assembly 18 comprises an angle steel 181, a bolt 182 penetrates through the scraper plate 141 and the angle steel 181 at the same position, a nut 183 is connected onto the bolt 182 in a threaded manner, the end face of the nut 183 abuts against the angle steel 181, a circular ring 16 is fixed at one end, far away from the angle steel 181, of the adjusting plate 142, and the circular ring 16 is sleeved on the transverse shaft 15.

The scraping plate 141 is placed in parallel with the discharging roller 1, the cross section of the scraping plate 141 is triangular, one surface of the scraping plate 141 close to the discharging roller 1 is attached to the surface of the discharging roller 1, and in the embodiment, the scraping plate 141 is made of polyethylene materials.

Referring to fig. 2 and 3, 7 adjusting holes 184 penetrate through the adjusting plate 142 in the thickness direction of the adjusting plate 142, the 7 adjusting holes 184 are uniformly distributed at intervals in the length direction of the adjusting plate 142, two adjusting blocks 185 are fixed on the angle steel 181 and are respectively located on two sides of the angle steel 181, and each of the two adjusting plates 142 is located on one side of the adjusting plate 142. A positioning hole 186 penetrates through the adjusting block 185 along the thickness direction of the adjusting block 185, a bolt 182 is mounted on the adjusting block 185, a nut 183 is in threaded connection with the bolt 182, the bolt 182 penetrates through the positioning hole 186 and the adjusting hole 184 and is in threaded connection with the nut 183, and when the nut 183 is tightened to abut against the adjusting block 185, the adjusting block 185 is fixed with the adjusting plate 142. In this embodiment, there are two adjusting plates 142 respectively located at two ends of the angle 181 in the length direction.

Referring to fig. 2 and 4, the driving device 4 is mounted on the fixing plate 22, the driving device 4 includes a driving motor 41, a driving gear 42, a driven gear 43, and a chain 44 engaged between the driving gear 42 and the driven gear 43, the driving motor 41 is fixed on an outer side of one end of one of the fixing plates 22, the driving gear 42 is mounted on the other side of the fixing plate 22 opposite to the driving gear 41, the driven gear 43 is disposed at the other end of the fixing plate 22 opposite to the driving gear 42, a rotation shaft of the driving motor 41 is fixedly connected to an axial center of the driving gear 42, and the chain 44 is parallel to a side of the fixing plate.

The fixed plate 22 is fixed with the protective case 10, and the driven gear is placed in the protective case 10. The protective shell 10 is hollow and cylindrical, an outlet for the chain 44 to extend out is arranged through the arc side edge of the protective shell 10, and one end of the discharging roller 1 extends into the protective shell 10 and is fixedly connected with the axis of the driven gear 43.

Referring to fig. 4, two ends of the discharging shaft 6 respectively penetrate through two ends of the discharging drum 1, the center of the driven gear 43 penetrates through the fixing plate 22, and is fixedly connected with the fixing plate 22, a fixing block 23 is fixed on one side of the fixing plate 22, which is opposite to the discharging drum 1, and one end of the discharging shaft 6, which penetrates through the fixing plate 22, penetrates through the fixing block 23 and is fixedly connected with the fixing block 23. The feed device communicates with the end of the discharge shaft 6 penetrating the fixing plate 22, and in this embodiment, the feed device is composed of a feed pipe 17 and a press (not shown), through which the material is pressed into the discharge shaft 6 via the feed pipe 17.

Referring to fig. 4 and 5, a steam channel (not shown) with a U-shaped loop is formed in the wall thickness of the discharging shaft 6 in a penetrating manner along the length direction of the discharging shaft 6, an air inlet hole 64 and an air outlet hole 63 are formed in one end of the steam channel penetrating through the discharging shaft 6, the air inlet hole 64 is on the same side as the air outlet hole 63, an air outlet pipe 65 is communicated with the air outlet hole 63, the air outlet pipe 65 is communicated with a steam treatment device (not shown), an air inlet pipe 66 is communicated with the air inlet hole 64, and the air inlet pipe 66 is communicated with a steam source (not shown). The discharge shaft 6 is kept at a constant temperature by passing steam into the steam passage, so that the material in the discharge shaft 6 is kept in a molten state.

Referring to fig. 5, a storage bin 61 is formed in the discharging shaft 6 in a hollow mode, the storage bin 61 is communicated with the feeding pipe 17, a groove 62 with an opening facing the material receiving device 5 is formed in the discharging shaft 6 in a recessed mode, a cover plate 8 used for sealing the groove 62 is installed on the groove 62, and an elastic piece 9 used for driving the cover plate 8 to abut against the inner side wall of the discharging roller 1 is installed in the groove 62. In this embodiment, the elastic member 9 is a spring.

Sunken logical silo 11 that has intercommunication recess 62 and storage silo 61 on the recess 62, the inner wall that leads to silo 11 is the one-level cascaded, and elastic component 9 is placed in the ladder department that leads to silo 11, leaves the passageway that supplies the material to pass through on the elastic component 9, and elastic component 9's one end stretches out to lead to silo 11 and is connected with apron 8. In this embodiment, there are eight through-grooves 11, and each through-groove 11 has a circular cross section and is uniformly spaced along the length of the groove 62.

The groove 62 is recessed along the length direction of the discharging shaft 6, and the length of the groove 62 is smaller than that of the discharging shaft 6. The surface of the cover plate 8 back to the groove 62 is arc-shaped, and the surface of the cover plate 8 back to the groove 62 is recessed with a strip groove 12 along the length direction of the cover plate 8. The strip groove 12 is positioned in the middle of the cover plate 8 in the width direction, the length of the strip groove 12 is consistent with that of the cover plate 8, and two ends of the strip groove 12 are closed.

Referring to fig. 5 and 6, a through hole 81 is formed through the cover plate 8, the through hole 81 is positioned in the bar groove 12, the cross section of the through hole 81 is circular, and the diameter of the through groove 11 is larger than that of the through hole 81. In this embodiment, there are 22 through holes 81, and they are uniformly spaced along the length of the bar groove 12. The both sides that apron 8 is close to recess 62 all along the length direction of apron 8 sunken have logical groove 13, lead to the middle part that groove 13 is located apron 8 side, lead to groove 13 around the closed form of end to end's of the circumference formation of apron 8 logical groove 13, be provided with the sealing member on the apron 8, the clearance between the lateral wall of sealed apron 8 and recess 62 of sealing member. In the present embodiment, the sealing member is a packing 19, and the packing 19 is made of rubber. The sealing ring 19 is sleeved on the through groove 13.

The working principle and working conditions of the embodiment are as follows:

granulator during operation, drive arrangement 4 drive discharge roller 1 rotates, apron 8 is when discharge roller 1 rotates, because the supporting force of vertical orientation apron 8 is applyed to apron 8 to elastic component 9, make apron 8 remain throughout to support on discharge roller 1's inside wall, inlet pipe 17 presses the material into in the storage silo 61, the material in the storage silo 61 is pressed to the recess 62 in the silo 11 from leading to under the effect of pressure, then utilize the secondary of through-hole 81 to spout the material to falling on receiving device 5 behind discharge opening 3 in through-hole 81 with higher speed, accomplish the ejection of compact.

Elasticity that has through elastic component 9 itself, make elastic component 9 receive the vibrations when lapping 8, elastic component 9 has certain cushion force to lapping 8 so that lapping 8 keeps the butt on ejection of compact cylinder 1's inner wall throughout, make through-hole 81 can be better aim at with discharge opening 3, spout from discharge opening 3 that through-hole 81 department spun material is accurate, it is further, after the material is spout from discharge opening 3, be difficult for being detained between apron 8 and the ejection of compact cylinder 1, cause the jam of discharge opening 3 after the material solidifies.

Through setting up through-hole 81 in strip groove 12 for when the material flows from through-hole 81, because of having certain interval between through-hole 81 and the inner wall of ejection of compact cylinder 1, through-hole 81 is difficult for touching the material on the inner wall of ejection of compact cylinder 1, solidifies the material on the inner wall of ejection of compact cylinder 1 and is difficult for stifled in through-hole 81, influences the normal outflow of material.

The sealing ring 19 is arranged to seal the gap between the cover plate 8 and the side wall of the groove 62, so that the pressure of the gap between the bottom of the groove 62 and the cover plate 8 is higher than the pressure outside the groove 62, and the material can be pressed into the through hole 81 from the discharging shaft 6 to further extrude the material.

Through evenly setting up through-hole 81 along the length direction of apron 8, when the extrusion material, the material all has the material to fall at the length direction of apron 8, and falls to receiving device 5 on adjacent material be difficult for not easily gluing together when not solidifying the shaping, influence the granule and take shape.

The diameter that leads to silo 11 through setting up is greater than the diameter of through-hole 81 for the material enters into gap department between recess 62 and the apron 8 in advance, so that the material that enters into in the through-hole 81 at every turn all can fill up through-hole 81, makes the material obtain certain acceleration in the through-hole 81, so that the material spouts to discharge opening 3 from through-hole 81, falls on receiving device 5 by discharge opening 3.

Scrape the effect that the flitch 141 played scraping and sweeping to the material in the rotation through setting up the laminating ejection of compact cylinder 1 surface, utilize the effect of scraping the friction between flitch 141 and the ejection of compact cylinder 1, will glue the material that glues on ejection of compact cylinder 1 outer wall and scrape away discharge opening 3 for the material that glues on discharge opening 3 is difficult for influencing extrusion of subsequent material, the efficiency of extruding of increase.

Through setting up the interval between scraping flitch 141 and the discharging roller 1 adjustable, after scraping flitch 141 uses a period, the one side of scraping flitch 141 and discharging roller 1 contact produces wearing and tearing easily for scrape the interval that has produced between flitch 141 and the discharging roller 1, scrape the material function decline of scraping flitch 141 itself, scrape flitch 141 through adjusting and make scraping flitch 141 keep all the time with the outer wall laminating of discharging roller 1, discharge opening 3 is difficult to be stopped up, influences the ejection of compact.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides a granulator, includes mounting bracket (2) and rotates and install hollow discharging roller (1) that is on mounting bracket (2), be provided with a plurality of discharge opening (3) on discharging roller (1), discharging roller (1) intercommunication has feed arrangement, be connected with on discharging roller (1) and be used for the drive discharging roller (1) pivoted drive arrangement (4), the below of discharging roller (1) is provided with receiving device (5), its characterized in that: a discharging shaft (6) which is static relative to the mounting rack (2) is arranged in the discharging roller (1), a storage bin (61) is arranged in the discharging shaft (6), a groove (62) which is opened towards the receiving device (5) is sunken on the discharging shaft (6), the groove (62) is communicated with the storage bin (61), a cover plate (8) for sealing the groove (62) is arranged on the groove (62), a gap is reserved between the cover plate (8) and the groove bottom of the groove (62), the cover plate (8) is provided with a plurality of through holes (81), an elastic part (9) for driving the cover plate (8) to abut against the inner side wall of the discharging roller (1) is arranged in the groove (62), a material passage is arranged on the elastic part (9), a sealing part is arranged on the cover plate (8), the seal seals a gap between the cover plate (8) and a side wall of the groove (62).

2. A granulator according to claim 1, characterized in that: the groove (62) is arranged along the length direction of the discharging shaft (6) in a concave mode.

3. A granulator according to claim 2, characterized in that: the groove (62) is provided with a material passing groove (11) which is communicated with the storage bin (61) and the groove (62).

4. A granulator according to claim 3, characterized in that: the elastic piece (9) is arranged on the material passing groove (11).

5. A granulator according to claim 3, characterized in that: the diameter of the material passing groove (11) is larger than that of the through hole (81).

6. A granulator according to claim 1, characterized in that: the cover plate (8) and one surface of the discharging roller (1) in butt joint are sunken to form a strip groove (12) with the length direction consistent with that of the cover plate (8), and the through hole (81) is formed in the groove bottom of the strip groove (12).

7. A granulator according to any of the claims 2-6, characterized in that: the through holes (81) are uniformly arranged at intervals along the length direction of the cover plate (8).

8. A granulator according to claim 1, characterized in that: the side face, close to the side wall of the groove (62), of the cover plate (8) is provided with a through groove (13) which is closed end to end in a sunken mode, the sealing element comprises a sealing ring (19), and the sealing ring (19) is sleeved on the through groove (13).

9. A granulator according to claim 1, characterized in that: install scraper (14) on mounting bracket (2), scraper (14) are including scraping flitch (141), scrape flitch (141) with ejection of compact cylinder (1) laminating sets up.

10. A granulator according to claim 9, characterized in that: install regulation board (142) of level towards scraping flitch (141) direction on mounting bracket (2), scrape flitch (141) with the one end that mounting bracket (2) were kept away from in regulation board (142) is connected, install adjustment Assembly (18) of drive scraping device (14) laminating ejection of compact cylinder (1) outer wall on regulation board (142).

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