Granulator with uniform particle size processing function

Abstract

The granulator comprises a homogenizing box, a circular mold, a granulation chamber and a compression roller, the homogenizing box is arranged at the top end of the granulation chamber, the bottom of the homogenizing box is connected with the granulation chamber through a conveying barrel, the circular mold is arranged in the center of the interior of the granulation chamber, and the compression roller is arranged in the granulation chamber. Mold holes are uniformly formed in the outer side wall of the circular mold, compression rollers are arranged on the two sides of the interior of the circular mold, two groups of cutters are fixed in the granulation chamber on the outer side of the circular mold, and an adjusting frame is fixed in the granulation chamber on one side of the compression rollers. The granulating chamber, the circular mold, the mold hole, the compression roller, the adjusting frame, the bidirectional screw rod, the second driving motor, the driving block and the guide rod are mounted, and the distance between the compression roller and the circular mold is adjusted, so that raw materials can smoothly pass through the mold hole of the circular mold and form granules with regular shapes and uniform sizes when being subjected to sufficient pressure.

Description

Technical Field

[0001] The invention relates to the technical field of granulator equipment, in particular to a granulator capable of processing particles of uniform size. Background Art

[0002] The granulator is a machine that processes materials into particles of a certain size. It is widely used in many fields such as pharmaceuticals, chemicals, food industry and feed production. When the granulator is working, the raw materials are introduced between the ring die and the pressure roller. The materials are clamped and squeezed by the pressure roller and continuously and densely squeezed through the die holes of the ring die to form columnar particles. The extruded particles are then cut into a certain length by a cutter fixed on the outside of the ring die.

[0003] Generally speaking, if the distance between the roller and the ring die of the pellet mill is too large, the material may not be sufficiently extruded, resulting in loose or unformed pellets. If the distance is too small, the wear of the roller and the ring die may increase, while generating greater noise and energy consumption. The position of the roller of the pellet mill is generally not conducive to automatic adjustment and urgently needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a granulator for processing particles of uniform size, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a granulator for uniformly processing particle sizes, comprising a homogenizing box, a ring die, a granulating chamber and a pressing roller, wherein a homogenizing box is arranged at the top of the granulating chamber, and the bottom of the homogenizing box is connected to the granulating chamber through a feeding cylinder, a ring die is arranged at the central position inside the granulating chamber, and die holes are evenly opened on the outer side wall of the ring die, pressing rollers are arranged on both sides of the ring die, two groups of cutting knives are fixed in the granulating chamber outside the ring die, an adjusting frame is fixed in the granulating chamber on one side of the pressing roller, and the A bidirectional screw is arranged inside the adjusting frame, both ends of the bidirectional screw are sleeved with drive blocks, and one end of the drive block is connected to the pressure roller through a connecting shaft, a second drive motor is fixed to one side of the adjusting frame, and the output end of the second drive motor is connected to the bidirectional screw, and a discharge port is arranged at the bottom end of the granulating chamber; a steam jacket is arranged on the outside of the homogenizing box, and an air inlet and an air outlet are respectively arranged on both sides of the steam jacket; a rotating shaft is arranged at the central position inside the homogenizing box, and stirring elements are evenly distributed on the rotating shaft.

[0006] Preferably, a first drive motor is fixed to the top of the homogenizing box, and an output end of the first drive motor is connected to a rotating shaft.

[0007] Preferably, a scraper is provided on one side of the rotating shaft, and the top of the scraper is connected to the rotating shaft through a connecting piece, and the scraper is in contact with the inner wall of the homogenizing box.

[0008] Preferably, a roller is provided inside the feeding cylinder, and the top end of the roller is connected to the bottom end of the rotating shaft, and spiral blades are evenly distributed on the roller.

[0009] Preferably, the feed cylinder is located above one side of the ring die, and a material guiding channel is provided on one side of the bottom of the feed cylinder.

[0010] Preferably, a guide rod is fixed in the granulation chamber on the side of the pressing roller away from the adjusting frame, and one end of the pressing roller close to the guide rod is slidably sleeved with the guide rod through a guide sleeve.

[0011] According to the description of the technical solution, the technical solution has many beneficial technical effects, specifically including: the granulator with uniform particle size processing is equipped with a granulating chamber, a ring die, a die hole, a pressure roller, an adjusting frame, a bidirectional screw, a second drive motor, a drive block and a guide rod. The bidirectional screw is driven to rotate by the second drive motor, so that the drive blocks are close to or separated from each other along the bidirectional screw, thereby driving the pressure roller to adjust the distance from the ring die. The appropriate distance between the pressure roller and the ring die can ensure that the raw materials can smoothly pass through the die hole of the ring die and form particles with regular shape and uniform size when subjected to sufficient pressure, while reducing the accumulation and blockage of materials in the granulating chamber, thereby reducing the frequency of machine blockage. At the same time, the distance can be automatically adjusted at any time during the granulation process without stopping the machine for manual operation, which is convenient, fast and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the top view of the pressure roller of the present invention.

[0015] Figure 3 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the feeding tube of the present invention.

[0017] Figure 5 It is a schematic diagram of the rotating shaft structure of the present invention.

[0018] In the figure: 1. homogenizing box; 2. rotating shaft; 3. first driving motor; 4. steam jacket; 5. feeding cylinder; 6. ring die; 7. adjusting frame; 8. granulating chamber; 9. discharging port; 10. pressing roller; 11. cutting knife; 12. bidirectional screw rod; 13. driving block; 14. second driving motor; 15. guide rod; 16. material guiding channel; 17. die hole; 18. roller; 19. spiral blade; 20. connecting piece; 21. scraper; 22. stirring piece. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5 The present invention provides an embodiment: a granulator for uniform particle size processing, comprising a homogenizing box 1, a ring die 6, a granulating chamber 8 and a pressing roller 10, a homogenizing box 1 is arranged at the top of the granulating chamber 8, a rotating shaft 2 is arranged at the central position inside the homogenizing box 1, and stirring members 22 are evenly distributed on the rotating shaft 2; a first driving motor 3 is fixed to the top of the homogenizing box 1, and the output end of the first driving motor 3 is connected to the rotating shaft 2; the granulating raw material is introduced into the homogenizing box 1, and the first driving motor 3 drives the rotating shaft 2 and the stirring member 22 to rotate, and the raw material is stirred to improve the fluidity; a steam jacket 4 is arranged on the outer side of the homogenizing box 1, and an air inlet and an air outlet are respectively arranged on both sides of the steam jacket 4, steam is introduced into the steam jacket 4, and the raw material is tempered to a certain temperature and humidity to improve the granulation characteristics of the material.

[0021] A scraper 21 is provided on one side of the rotating shaft 2, and the top of the scraper 21 is connected to the rotating shaft 2 through a connecting piece 20. The scraper 21 contacts the inner wall of the homogenizing box 1, so that the raw material residue on the inner wall of the homogenizing box 1 can be scraped off, which is convenient for cleaning; the bottom of the homogenizing box 1 is connected to the granulating chamber 8 through a feeding cylinder 5, and a roller 18 is provided inside the feeding cylinder 5, and the top end of the roller 18 is connected to the bottom end of the rotating shaft 2, and spiral blades 19 are evenly distributed on the roller 18.

[0022] A ring die 6 is arranged at the central position inside the granulation chamber 8, and the outer side wall of the ring die 6 is evenly provided with die holes 17, pressure rollers 10 are arranged on both sides inside the ring die 6, and two groups of cutting knives 11 are fixed in the granulation chamber 8 outside the ring die 6; the feed barrel 5 is located above one side of the ring die 6, and a material guide channel 16 is arranged on one side of the bottom of the feed barrel 5; when the rotating shaft 2 rotates, the roller 18 drives the spiral blade 19 to rotate, and the raw material is transported downward through the feed barrel 5, and introduced into the granulation chamber 8 between the ring die 6 and the pressure roller 10 through the material guide channel 16.

[0023] The ring die 6 is directly driven to rotate by an external driving device, driving the raw materials to move in the granulation chamber 8, and bringing the raw materials into the gap between the pressure roller 10 and the ring die 6 for extrusion. At the same time, when the ring die 6 rotates, friction is generated between the pressure roller 10. This friction is caused by the contact surfaces between the ring die 6 and the pressure roller 10 contacting each other and generating a relative motion trend. Under the action of the friction, the pressure roller 10 will start to rotate and squeeze the raw materials entering the pressing chamber. After being squeezed, the raw materials will be extruded into particles through the die holes 17 of the ring die 6, and then cut into particles by the cutter 11.

[0024] An adjusting frame 7 is fixed in the granulating chamber 8 on one side of the pressure roller 10, and a bidirectional screw rod 12 is arranged inside the adjusting frame 7, both ends of the bidirectional screw rod 12 are sleeved with driving blocks 13, and one end of the driving block 13 is connected to the pressure roller 10 through a connecting shaft; a second driving motor 14 is fixed on one side of the adjusting frame 7, and the output end of the second driving motor 14 is connected to the bidirectional screw rod 12; the bidirectional screw rod 12 is driven to rotate by the second driving motor 14, so that the driving blocks 13 are close to or separated from each other along the bidirectional screw rod 12, thereby driving the pressure roller 10 to adjust the distance with the ring die 6.

[0025] The appropriate spacing between the pressing roller 10 and the ring die 6 can ensure that the raw materials can smoothly pass through the die hole 17 and form particles of regular shape and uniform size when subjected to sufficient pressure, while reducing the accumulation and blockage of materials in the granulation chamber 8, thereby reducing the frequency of machine blockage. At the same time, the spacing can be automatically adjusted at any time during the granulation process without stopping the machine for manual operation, which is convenient, fast and safer.

[0026] A guide rod 15 is fixed in the granulation chamber 8 on the side of the pressure roller 10 away from the adjustment frame 7, and the end of the pressure roller 10 close to the guide rod 15 is slidably sleeved with the guide rod 15 through a guide sleeve, and is guided and limited when the pressure roller 10 moves; a discharge port 9 is provided at the bottom end of the granulation chamber 8 for discharging the cut particles. The specific model specifications of the first drive motor 3 and the second drive motor 14 need to be determined according to the selection calculation of the specification parameters of the device, and the selection calculation method is a prior art, so it will not be described in detail.

[0027] The working principle of the technical scheme is that the granulation raw material is introduced into the homogenizing box 1, the first driving motor 3 drives the rotating shaft 2 and the stirring member 22 to rotate, stirs the raw material to improve the fluidity, and at the same time, steam is introduced into the steam jacket 4, and the raw material is tempered to a certain temperature and humidity to improve the granulation characteristics of the material. When the rotating shaft 2 rotates, the roller 18 drives the spiral blade 19 to rotate, and the raw material is transported downward through the feeding cylinder 5, and is introduced into the granulation chamber 8 between the ring die 6 and the pressure roller 10 through the material guide channel 16. The ring die 6 is directly driven by an external driving device. The roller 10 rotates dynamically, driving the raw material to move in the granulation chamber 8, and brings the raw material into the gap between the pressing roller 10 and the ring die 6 for extrusion. At the same time, when the ring die 6 rotates, friction is generated between the pressing roller 10. This friction is generated because the contact surfaces between the ring die 6 and the pressing roller 10 contact each other and produce a relative motion trend. Under the action of the friction, the pressing roller 10 will start to rotate and squeeze the raw material entering the pressing chamber. After being squeezed, the raw material will be extruded into particles through the die hole 17 of the ring die 6, and then cut into particles by the cutter 11.

[0028] The bidirectional screw rod 12 is driven to rotate by the second driving motor 14, so that the driving blocks 13 are moved closer to or away from each other along the bidirectional screw rod 12, thereby driving the pressure roller 10 to adjust the distance from the ring die 6. The appropriate distance between the pressure roller 10 and the ring die 6 can ensure that the raw materials can smoothly pass through the die hole 17 and form particles with regular shape and uniform size when subjected to sufficient pressure, while reducing the accumulation and blockage of materials in the granulation chamber 8, thereby reducing the frequency of machine blockage. At the same time, the distance can be automatically adjusted at any time during the granulation process without stopping the machine for manual operation, which is convenient, fast and safer. The cut particles are discharged through the discharge port 9.

Claims

1. A granulator for uniformly processing particle sizes, characterized in that: The invention comprises a homogenizing box (1), a ring die (6), a granulating chamber (8) and a pressing roller (10), wherein the top of the granulating chamber (8) is provided with the homogenizing box (1), the bottom of the homogenizing box (1) is connected to the granulating chamber (8) via a feeding tube (5), a ring die (6) is provided at a central position inside the granulating chamber (8), and the outer wall of the ring die (6) is evenly provided with die holes (17), pressing rollers (10) are provided on both sides inside the ring die (6), two groups of cutting knives (11) are fixed inside the granulating chamber (8) outside the ring die (6), an adjusting frame (7) is fixed inside the granulating chamber (8) on one side of the pressing roller (10), and a bidirectional screw rod is provided inside the adjusting frame (7). (12), both ends of the bidirectional screw rod (12) are sleeved with drive blocks (13), and one end of the drive block (13) is connected to the pressure roller (10) through a connecting shaft, a second drive motor (14) is fixed to one side of the adjustment frame (7), and the output end of the second drive motor (14) is connected to the bidirectional screw rod (12), and a discharge port (9) is arranged at the bottom end of the granulation chamber (8); a steam jacket (4) is arranged on the outer side of the homogenizing box (1), and an air inlet and an air outlet are respectively arranged on both sides of the steam jacket (4); a rotating shaft (2) is arranged at a central position inside the homogenizing box (1), and stirring elements (22) are evenly distributed on the rotating shaft (2).

2. A granulator for uniformly processing particle sizes according to claim 1, characterized in that: A first drive motor (3) is fixed to the top of the homogenizing box (1), and an output end of the first drive motor (3) is connected to the rotating shaft (2).

3. A granulator for uniformly processing particle sizes according to claim 1, characterized in that: A scraper (21) is provided on one side of the rotating shaft (2), and the top of the scraper (21) is connected to the rotating shaft (2) via a connecting piece (20), and the scraper (21) is in contact with the inner wall of the homogenizing box (1).

4. A granulator for uniformly processing particle sizes according to claim 1, characterized in that: A roller (18) is arranged inside the feeding cylinder (5), and the top end of the roller (18) is connected to the bottom end of the rotating shaft (2), and spiral blades (19) are evenly distributed on the roller (18).

5. A granulator for uniformly processing particle sizes according to claim 1, characterized in that: The material delivery cylinder (5) is located above one side of the ring die (6), and a material guide channel (16) is provided on one side of the bottom of the material delivery cylinder (5).

6. A granulator for uniformly processing particle sizes according to claim 1, characterized in that: A guide rod (15) is fixed in the granulation chamber (8) on the side of the pressing roller (10) away from the adjustment frame (7), and the end of the pressing roller (10) close to the guide rod (15) is slidably sleeved with the guide rod (15) via a guide sleeve.

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