Double-roller extrusion granulator

Abstract

The utility model relates to the field of pelletizers, in particular to a double-roller extrusion pelletizer which comprises a machine frame, a feeding hopper is detachably arranged at the top end of the machine frame, an integrated bearing seat is arranged between the feeding hopper and the machine frame, extrusion rollers are detachably arranged on the integrated bearing seat, and the extrusion rollers are arranged on the machine frame. A feed hopper is arranged on the rack, a discharge hopper is fixedly arranged in the middle of the rack below the feed hopper, a plummer block is arranged on the rack in the discharge hopper, a crushing roller is detachably arranged on the plummer block, and a power mechanism for driving the extrusion roller to rotate is further arranged on the side part of the rack; according to the double-roller extrusion granulator disclosed by the utility model, the concentricity of the two end parts of the double rollers can be ensured, meanwhile, the relative positions of all parts of the two double rollers cannot be changed, the condition that the radial stress of the original bearing ratio is insufficient can be changed, the phenomenon that the bearing is heated is reduced, and the service life of the granulator is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of granulators, in particular to a double-roller extrusion granulator. Background Art

[0002] The extrusion granulator used for fertilizer is a key granulation equipment. It adopts a non-drying room temperature process to produce fertilizers, and can be formed in one time. It has the advantages of large output, low investment, quick effect and good economic benefits.

[0003] The extrusion granulator currently used in organic fertilizer equipment is prone to non-concentric bearing seats due to installation problems, which can cause bearing heating and damage, reducer abnormal noise and other defects during roller granulation, affecting the service life of the granulator. Therefore, how to overcome the above-mentioned technical problems and defects has become a key issue that needs to be solved. Utility Model Content

[0004] The purpose of the invention of the utility model is to overcome the defects described in the background technology, thereby realizing a double-roll extrusion granulator, which can ensure the concentricity of the two ends of the double rollers, and at the same time can ensure that the relative positions of the parts of the two double rollers will not change, and can change the original bearing ratio The radial force is insufficient, reduce the heating phenomenon of the bearing, and extend the service life of the granulator.

[0005] To achieve the above-mentioned invention object, the technical solution of the utility model is: a double-roll extrusion granulator, comprising a frame, a feed hopper is detachably provided at the top of the frame. An integral bearing seat is provided between the feed hopper and the frame, and an extrusion roller is detachably provided on the integral bearing seat. A discharge hopper is fixedly provided in the middle of the frame below the feed hopper, and a bearing seat is provided on the frame inside the discharge hopper. A crushing roller is detachably provided on the bearing seat. A power mechanism for driving the extrusion roller to rotate is also provided on the side of the frame.

[0006] In the above-mentioned double-roll extrusion granulator, the extrusion rollers are provided with two and are arranged on the integrated bearing seat opposite to each other. The concentricity of the two ends of the extrusion rollers is ensured, and the relative positions of the parts of the two extrusion rollers are ensured not to change. The feed hopper is detachably arranged on the integrated bearing seat just above the extrusion rollers, so that the raw materials directly enter the extrusion rollers.

[0007] In the above double-roller extrusion granulator, the ends of the extrusion rollers are fixedly provided with first gears meshing with each other, so as to realize synchronous rotation of the extrusion rollers.

[0008] In the above-mentioned roller extrusion granulator, the feed port of the discharge hopper passes through the top of the frame and is located directly below the extrusion roller. It is convenient for the extruded raw materials to directly enter the discharge hopper. The outlet of the discharge hopper is located on the side of the frame. Two crushing rollers are provided and are relatively arranged on the seat bearing. Through the provided seat bearing, it is simple and convenient to replace accessories.

[0009] In the above double-roll extrusion granulator, the ends of the crushing rollers are fixedly provided with second gears meshing with each other, so as to realize synchronous rotation of the crushing rollers.

[0010] In the above roller extrusion granulator, the seat bearing adopts a spherical roller bearing, which can change the original bearing ratio of insufficient radial force and reduce the bearing heating phenomenon.

[0011] In the above-mentioned double-roll extrusion granulator, sprockets are fixedly arranged at the ends of the extrusion roller and the crushing roller, and chains are sleeved on the sprockets. A tensioning mechanism for adjusting the tightness of the chain is also arranged inside the frame.

[0012] In the above roller extrusion granulator, the tensioning mechanism includes a slide bar disposed inside the frame and movable toward the chain, and a roller that can abut against the side of the chain is rotatably disposed at the end of the slide bar. A lead screw threadedly connected to the frame is rotatably disposed at the other end of the slide bar. The tension of the chain can be adjusted in a simple manner, and the operation is simple and convenient.

[0013] In the above-mentioned double-roll extrusion granulator, the power mechanism includes a motor detachably arranged inside the frame, and a reducer detachably arranged on the top of the frame. The motor drives the reducer to work through a belt arranged at its output end, and the output end of the reducer drives the corresponding extrusion roller to rotate through a coupling, thereby providing power for the granulator.

[0014] In the above-mentioned roller extrusion granulator, the coupling adopts a sprocket coupling, which has a larger concentricity range and a larger tolerance or error range for axis alignment.

[0015] Compared with the prior art, the double-roll extrusion granulator of the utility model has at least the following beneficial effects:

[0016] 1. The double-roll extrusion granulator of the utility model is provided with an integrated bearing seat for assembling the extrusion rollers, which can ensure the concentricity of the two ends of the extrusion rollers and at the same time ensure that the relative positions of the parts of the two extrusion rollers will not change.

[0017] 2. The utility model double-roll extrusion granulator is provided with a bearing seat equipped with a crushing roller and a spherical roller bearing, which can change the condition of insufficient radial force of the original bearing ratio and reduce the heating of the bearing. At the same time, the replacement of accessories is simple and convenient through the provided bearing seat.

[0018] 3. The double-roll extrusion granulator of the utility model is provided with a sprocket coupling located between the output end of the reducer and the extrusion roller, which can have a larger concentricity range and a larger tolerance or error range for axis alignment, which can simplify the installation process and reduce performance problems caused by installation errors. The tolerance for deviations is higher during use, which helps to reduce performance degradation caused by operating errors or tool wear, thereby improving work efficiency and stability and extending the service life of the granulator.

[0019] 4. The double-roller extrusion granulator of the utility model is provided with a tensioning mechanism for adjusting the tightness of the chain, which can adjust the tension of the chain in a simple manner, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the double-roll extrusion granulator of the utility model;

[0021] Figure 2 It is a schematic diagram of the exploded structure of the double-roll extrusion granulator of the utility model;

[0022] Figure 3 It is a schematic diagram of the tensioning mechanism structure of the double-roll extrusion granulator of the utility model.

[0023] In the figure: 1, frame; 2, feed hopper; 3, integrated bearing seat; 4, extrusion roller; 5, discharge hopper; 6, bearing seat; 7, crushing roller;

[0024] 8. Power mechanism; 81. Motor; 82. Speed ​​reducer; 83. Belt; 84. Coupling;

[0025] 9. First gear; 10. Second gear; 11. Sprocket; 12. Chain;

[0026] 13. Tensioning mechanism; 131. Sliding rod; 132. Roller; 133. Lead screw. DETAILED DESCRIPTION

[0027] The double-roll extrusion granulator of the utility model is described in more detail below with reference to the accompanying drawings and through specific implementation methods.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] See also Figure 1-Figure 3 The roller extrusion granulator of this embodiment can ensure the concentricity of the two ends of the rollers, and at the same time ensure that the relative positions of the parts of the two rollers will not change. It can also change the condition of insufficient radial force of the original bearing ratio, reduce the phenomenon of bearing heating, and extend the service life of the granulator. In this embodiment, it mainly includes a frame 1, and a feed hopper 2 is detachably provided at the top of the frame 1. An integrated bearing seat 3 is provided between the feed hopper 2 and the frame 1, and an extrusion roller 4 is detachably provided on the integrated bearing seat 3. The extrusion roller 4 is provided with two and relatively arranged on the integrated bearing seat 3. Ensure the concentricity of the two ends of the extrusion roller 4, and at the same time ensure that the relative positions of the parts of the two extrusion rollers 4 will not change. The feed hopper 2 is detachably provided on the integrated bearing seat 3 just above the extrusion roller 4. The feed port of the feed hopper 2 faces the middle position of the two extrusion rollers 4, so that the raw materials directly enter the extrusion roller 4. The ends of the extrusion rollers 4 are fixedly provided with first gears 9 that mesh with each other. The synchronous rotation of the extrusion rollers 4 is realized.

[0030] In order to achieve the crushing of raw materials. Figure 1-Figure 3 In this embodiment, a discharge hopper 5 is fixedly provided in the middle of the frame 1 below the feed hopper 2, and the feed port of the discharge hopper 5 passes through the top of the frame 1 and is located directly below the extrusion roller 4. It is convenient for the extruded raw materials to directly enter the discharge hopper 5. The outlet of the discharge hopper 5 is located on the side of the frame 1. A bearing seat 6 is provided on the frame 1 inside the discharge hopper 5. The bearing seat 6 is provided, and the replacement of accessories is simple and convenient. The bearing seat 6 adopts a self-aligning roller bearing. It can change the condition of insufficient radial force of the original bearing ratio and reduce the phenomenon of bearing heating. A crushing roller 7 is detachably provided on the bearing seat 6, and two crushing rollers 7 are provided and are relatively arranged on the bearing seat 6. The ends of the crushing rollers 7 are fixedly provided with second gears 10 that mesh with each other. The synchronous rotation of the crushing rollers 7 is realized.

[0031] The ends of the squeezing roller 4 and the crushing roller 7 are fixedly provided with a sprocket 11, and the sprocket 11 is sleeved with a chain 12. The squeezing roller 4 and the crushing roller 7 are synchronously rotated by the sprocket 11 and the chain 12, so that one power drives all parts to work. The frame 1 is also provided with a tensioning mechanism 13 for adjusting the tightness of the chain 12. The tensioning mechanism 13 includes a slide bar 131 arranged inside the frame 1 and movable toward the chain 12, and a roller 132 is rotatably provided at the end of the slide bar 131 and abutted against the side of the chain 12. The other end of the slide bar 131 is rotatably provided with a lead screw 133 threadedly connected to the frame 1. When the tension of the chain 12 needs to be adjusted, the slide bar 131 is moved on the frame 1 by rotating the lead screw 133, so as to adjust the degree of squeezing of the chain 12 by the roller 132. The tension of the chain 12 is adjusted in a simple manner.

[0032] In order to provide power for the operation of the granulator. In this embodiment, see Figure 1 and Figure 2 , the side of the frame 1 is also provided with a power mechanism 8 for driving the squeezing roller 4 to rotate. The power mechanism 8 includes a motor 81 that is detachably arranged inside the frame 1, and a fixed plate is hinged on the frame 1. The free end of the fixed plate is fixed by a screw to achieve position adjustment of the motor 81. A reducer 82 is detachably arranged at the top of the frame 1. The motor 81 drives the reducer 82 to work through a belt 83 arranged at its output end, and the output end of the reducer 82 drives the corresponding squeezing roller 4 to rotate through a coupling 84. The motor 81 is controlled to work, so that the reducer 82 is driven to work through the belt 83, and the reducer 82 drives the squeezing roller 4 to rotate. Thus, power is provided for the granulator. The coupling 84 adopts a sprocket coupling. As a result, there is a larger concentricity range between the output shaft of the reducer 82 and the squeezing roller 4, and a larger tolerance or error range for axis alignment. The installation process can be simplified and performance problems caused by installation errors can be reduced. The tolerance for deviation is higher during use. It helps to reduce performance degradation caused by operating errors or tool wear, thereby improving work efficiency and stability.

[0033] The method of using the double-roll extrusion granulator of the utility model is as follows: first, the motor 81 is controlled to work, and the output end of the motor 81 drives the reducer 82 to work through the belt 83, and at this time, the output end of the reducer 82 drives the corresponding extrusion roller 4 to rotate through the sprocket coupling 84. The extrusion roller 4 drives another extrusion roller 4 to rotate synchronously through the first gear 9. At this time, the extrusion roller 4 drives the corresponding crushing roller 7 to rotate through the sprocket 11 and the chain 12, and the crushing roller 7 drives another crushing roller 7 to rotate synchronously through the second gear 10. The raw material is poured into the feed hopper 2, and the raw material is extruded and granulated through the extrusion roller 4, and falls onto the crushing roller 7 of the discharge hopper 5 for crushing. After that, the crushed raw material is discharged from the discharge hopper 5. Thus, the double-roll granulation of the raw material is realized. When the tension of the chain 12 needs to be adjusted, the slide bar 131 is moved on the frame 1 by rotating the lead screw 133, so as to adjust the degree of the roller 132 squeezing the chain 12. The tension of the chain 12 can be adjusted in a simple way.

[0034] The granulator comprises a frame 1, a roller granulating part, and a granulating and crushing part. The granulating part is composed of an upper and lower bearing seat (the traditional bearing seat is composed of three bearing seat parts: left, middle and right) to ensure the concentricity of the internal bearing. A hole is reserved on the upper bearing seat (granulating part) to place the feed inlet, and a hole is reserved below the lower bearing seat (granulating part) to facilitate installation above the frame. The crushing part is placed in the same position as the bearing seat below the frame to break up the adhesion of the particles. The crushing device is composed of two crushing rollers 7, four bearing seats, and two crushing bottom plates. The crushing rollers 7 are driven by gears. The power comes from the motor 81, which is transmitted to the granulating part through the reducer 82. The granulating part is fixed with a sprocket 11 to cooperate with the sprocket 11 of the crushing part below.

[0035] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprises" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0036] The exemplary implementation of the present invention is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention can be made without exceeding the protection scope of the present invention.

Claims

1. A double-roll extrusion granulator, characterized in that: The invention comprises a frame (1), a feed hopper (2) is detachably provided at the top of the frame (1), an integral bearing seat (3) is provided between the feed hopper (2) and the frame (1), a squeezing roller (4) is detachably provided on the integral bearing seat (3), a discharge hopper (5) is fixedly provided in the middle of the frame (1) below the feed hopper (2), a bearing seat (6) is provided on the frame (1) inside the discharge hopper (5), a crushing roller (7) is detachably provided on the bearing seat (6), and a power mechanism (8) for driving the squeezing roller (4) to rotate is also provided on the side of the frame (1).

2. The double-roll extrusion granulator according to claim 1, characterized in that: The extrusion rollers (4) are provided with two and are arranged opposite to each other on the integrated bearing seat (3); the feed hopper (2) is detachably arranged on the integrated bearing seat (3) directly above the extrusion rollers (4).

3. The double-roll extrusion granulator according to claim 2, characterized in that: The ends of the squeezing rollers (4) are fixedly provided with first gears (9) that mesh with each other.

4. The double-roll extrusion granulator according to claim 1, characterized in that: The feed port of the discharge hopper (5) passes through the top of the frame (1) and is located directly below the squeezing roller (4); the outlet of the discharge hopper (5) is located on the side of the frame (1); and two crushing rollers (7) are provided and are arranged opposite to each other on the seat bearing (6).

5. The double-roll extrusion granulator according to claim 4, characterized in that: The ends of the crushing rollers (7) are fixedly provided with second gears (10) which mesh with each other.

6. The double-roll extrusion granulator according to claim 1, characterized in that: The seat bearing (6) adopts a spherical roller bearing.

7. The double-roll extrusion granulator according to claim 1, characterized in that: The ends of the squeezing roller (4) and the crushing roller (7) are both fixedly provided with sprockets (11), a chain (12) is sleeved on the sprocket (11), and a tensioning mechanism (13) for adjusting the tightness of the chain (12) is also provided inside the frame (1).

8. The double-roll extrusion granulator according to claim 7, characterized in that: The tensioning mechanism (13) comprises a sliding rod (131) arranged inside the frame (1) and movable in the direction of the chain (12); a roller (132) rotatably arranged at the end of the sliding rod (131) and capable of abutting against the side of the chain (12); and a lead screw (133) threadedly connected to the frame (1) is rotatably arranged at the other end of the sliding rod (131).

9. The double-roll extrusion granulator according to claim 1, characterized in that: The power mechanism (8) comprises a motor (81) detachably arranged inside the frame (1), a reducer (82) detachably arranged at the top of the frame (1), the motor (81) drives the reducer (82) to work via a belt (83) arranged at its output end, and the output end of the reducer (82) drives the corresponding squeezing roller (4) to rotate via a coupling (84).

10. The double-roll extrusion granulator according to claim 9, characterized in that: The coupling (84) is a sprocket coupling.

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