Three-roller crusher for feed granulation

Abstract

The three-roller crusher comprises a crushing box, a pretreatment box and a pretreatment assembly, a three-roller crushing structure is arranged in the crushing box, the pretreatment box is fixedly arranged at the top of the crushing box through a guide hopper, a primary crushing motor drives a driving crushing roller to rotate, and a secondary crushing motor drives a secondary crushing roller to rotate; the driving crushing roller and the driven crushing roller are meshed to primarily crush feed raw materials, the primarily crushed feed enters the pretreatment box, the feed is screened through the fixed screening plate, the staggered screening plate is driven by the air cylinder to move, the staggered screening plate drives the guide block to slide in the guide groove, and the staggered screening plate and the fixed screening plate are staggered; the size of screening holes is controlled, large feed enters a lifting column through a return hopper, a spiral conveying rod is driven by a lifting motor to rotate, feed raw materials are lifted, primary crushing work is carried out again, the feed raw materials are pretreated, large raw materials are further crushed, and the quality of granulated feed is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feed pelleting, in particular to a three-roller crusher for feed pelleting. Background Art

[0002] Feed pelleting is the process of processing feed raw materials into granular feed by physical methods. The three-roll crusher is a device commonly used in the feed pelleting process. It crushes and mixes the feed raw materials through the interaction of three rollers to achieve the required particle size and uniformity.

[0003] After searching, a three-roller crusher for aquatic feed processing with the publication number CN214288468U belongs to the technical field of aquatic feed processing. The structure includes a machine body, a crushing roller group for crushing particles is arranged in the machine body, an air drying cylinder is arranged at the upper end of the machine body, a feed inlet is arranged on the air drying cylinder, and an air drying device for air-drying particles is arranged in the air drying cylinder. The crushing roller group includes an active crushing roller rotatably arranged in the machine body, a driven crushing roller is rotatably arranged on the upper and lower sides of the active crushing roller, and crushing teeth for crushing particles are arranged on the active crushing roller and the driven crushing roller. A mesh screen is arranged below the crushing roller group, a material guide plate is arranged below the mesh screen, and a discharge device is arranged below the material guide plate. The utility model has a simple structure, ensures the dryness of the particles, has a good particle crushing and refinement effect, and has a high crushing efficiency.

[0004] The device disclosed in the patent usually crushes the feed directly, cannot pre-treat the feed raw materials, and cannot further crush large pieces of raw materials, which affects the quality of the feed after pelleting. Utility Model Content

[0005] In order to solve the technical problems in existing patents that feed is directly crushed, feed raw materials cannot be pretreated, large pieces of raw materials cannot be further crushed, and the quality of feed after pelleting is affected, the utility model provides a three-roller crusher for feed pelleting.

[0006] The technical solution adopted by the utility model is: a three-roller crusher for feed pelleting, comprising:

[0007] A crushing box, wherein a three-roller crushing structure is installed inside the crushing box;

[0008] A pre-processing box, the pre-processing box is fixedly mounted on the top of the crushing box through a guide hopper, and a feed box is fixedly mounted on the top of the pre-processing box;

[0009] A pre-processing component, which is installed inside the pre-processing box and the feed box, and is used to pre-process the feed raw materials;

[0010] The pre-processing assembly includes a primary crushing structure installed inside the feed box, a screening structure installed inside the pre-processing box, and a lifting structure installed on one side of the crushing box.

[0011] Furthermore, the primary crushing structure includes a primary crushing motor installed on one side of the feed box by bolts, an active crushing roller rotatably installed on the inner wall of the feed box and fixedly mounted on the output shaft of the primary crushing motor, and a driven crushing roller rotatably installed between the inner walls of the feed box, and the active crushing roller is meshed with the driven crushing roller.

[0012] Furthermore, a guide groove is provided on the inner side wall of the pretreatment box, and a return hopper is installed on one side of the pretreatment box. The screening structure includes a fixed screen plate fixedly installed between the inner side walls of the pretreatment box, a cylinder installed on the outer side wall of the pretreatment box by bolts, an offset screen plate fixedly installed on the cylinder output shaft, and a guide block fixedly welded on one side of the offset screen plate. The offset screen plate is installed on the bottom of the fixed screen plate and fits with it, and the guide block is slidably connected to the inside of the guide groove.

[0013] Furthermore, a support plate is fixedly welded to one side of the crushing box, and the lifting structure includes a lifting column fixedly welded to the top of the support plate, a lifting motor installed on the top of the lifting column by bolts, and a spiral conveying rod rotatably installed on the inner bottom wall of the lifting column and fixedly mounted on the output shaft of the lifting motor.

[0014] Furthermore, one side of the bottom of the lifting column is connected to the return hopper, the other side of the lifting column is fixedly provided with a feeding port, and one side of the top of the lifting column is provided with a material guide column, and the material guide column corresponds to the feed box.

[0015] Furthermore, the three-roller crushing structure includes three groups of working motors installed on one side of the crushing box by bolts and working rollers rotatably installed on the inner wall of the crushing box and fixedly installed on the output shaft of the working motor. A discharge hopper is installed at the bottom of the crushing box.

[0016] The beneficial effects of the utility model are:

[0017] The primary crushing motor drives the active crushing roller to rotate, and the active crushing roller engages with the driven crushing roller to perform preliminary crushing of the feed raw materials. The initially crushed feed enters the pretreatment box and is screened by the fixed screening plate. The cylinder drives the offset screening plate to move, and the offset screening plate drives the guide block to slide in the guide groove. The offset screening plate is offset from the fixed screening plate to control the size of the screening hole. Large feed enters the lifting column through the return hopper, and the spiral conveying rod is driven by the lifting motor to rotate to lift the feed raw materials, and the primary crushing work is carried out again to pre-treat the feed raw materials, further crush the large pieces of raw materials, and improve the quality of the feed after pelletizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in its initial state;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the pretreatment component in the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the primary crushing structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the screening structure in the utility model;

[0022] Figure 5 It is a three-dimensional structural diagram of the lifting structure in the utility model;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the three-roller crushing structure in the utility model.

[0024] The following are marked in the figure:

[0025] Crushing box;

[0026] 2. Three-roller crushing structure; 201. Working motor; 202. Working roller;

[0027] 3. Pretreatment box; 4. Feed box;

[0028] 5. Pretreatment assembly; 501. Primary crushing structure; 5011. Primary crushing motor; 5012. Active crushing roller; 5013. Driven crushing roller; 502. Screening structure; 5021. Fixed screening plate; 5022. Cylinder; 5023. Offset screening plate; 5024. Guide block; 503. Lifting structure; 5031. Lifting column; 5032. Lifting motor; 5033. Screw conveyor rod;

[0029] 6. Return hopper; 7. Support plate; 8. Feeding port; 9. Material guide column; 10. Discharge hopper. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0032] The following is combined with Figure 1-6 The utility model is further described.

[0033] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a three-roller crusher for feed pelleting, comprising: a crushing box 1, a pretreatment box 3 and a pretreatment component 5;

[0034] A three-roller crushing structure 2 is installed inside the crushing box 1. The three-roller crushing structure 2 includes three sets of working motors 201 installed on one side of the crushing box 1 by bolts and working rollers 202 rotatably installed on the inner wall of the crushing box 1 and fixedly mounted on the output shaft of the working motor 201. A discharge hopper 10 is installed at the bottom of the crushing box 1.

[0035] The pretreatment box 3 is fixedly mounted on the top of the crushing box 1 through a guide hopper, and a feed box 4 is fixedly mounted on the top of the pretreatment box 3 .

[0036] like Figure 1-5 As shown, the pretreatment component 5 is installed inside the pretreatment box 3 and the feed box 4, and the pretreatment component 5 is used to pretreat the feed raw materials.

[0037] The pretreatment component 5 includes a primary crushing structure 501 installed inside the feed box 4, a screening structure 502 installed inside the pretreatment box 3 and a lifting structure 503 installed on one side of the crushing box 1. The primary crushing structure 501 includes a primary crushing motor 5011 installed on one side of the feed box 4 by bolts, an active crushing roller 5012 rotatably installed on the inner wall of the feed box 4 and fixedly installed on the output shaft of the primary crushing motor 5011, and a driven crushing roller 5013 rotatably installed between the inner walls of the feed box 4. The active crushing roller 5012 is meshed with the driven crushing roller 5013.

[0038] Furthermore, a guide groove is provided on the inner wall of the pretreatment box 3, and a return hopper 6 is installed on one side of the pretreatment box 3. The screening structure 502 includes a fixed screening plate 5021 fixedly installed between the inner walls of the pretreatment box 3, a cylinder 5022 installed on the outer wall of the pretreatment box 3 by bolts, an offset screening plate 5023 fixedly installed on the output shaft of the cylinder 5022, and a guide block 5024 fixedly welded to one side of the offset screening plate 5023. The offset screening plate 5023 is installed on the bottom of the fixed screening plate 5021 and fits with it, and the guide block 5024 is slidably connected to the inside of the guide groove.

[0039] Furthermore, a supporting plate 7 is fixedly welded to one side of the crushing box 1, and the lifting structure 503 includes a lifting column 5031 fixedly welded to the top of the supporting plate 7, a lifting motor 5032 installed on the top of the lifting column 5031 by bolts, and a spiral conveying rod 5033 rotatably installed on the inner bottom wall of the lifting column 5031 and fixedly mounted on the output shaft of the lifting motor 5032.

[0040] Furthermore, one side of the bottom of the lifting column 5031 is connected to the return hopper 6, and the other side of the lifting column 5031 is fixedly provided with a feeding port 8. One side of the top of the lifting column 5031 is provided with a material guide column 9, which corresponds to the feed box 4.

[0041] Working principle: When in use, the staff adds feed raw materials through the feeding port 8, and the lifting motor 5032 drives the spiral conveying rod 5033 to rotate to lift the feed raw materials. The feed raw materials enter the feed box 4 through the guide column 9, and the primary crushing motor 5011 drives the active crushing roller to rotate. The active crushing roller engages with the driven crushing roller to perform preliminary crushing of the feed raw materials. The feed after preliminary crushing enters the pretreatment box 3, and the feed is screened by the fixed screening plate 5021. The cylinder 5022 drives the offset screening plate 5023 to move, and the offset screening plate 5023 drives the guide block 5024 in the guide groove. The inward sliding, offset screening plate 5023 is offset from the fixed screening plate 5021 to control the size of the screening holes. Large feed enters the lifting column 5031 through the return hopper 6 and is re-crushed. Small feed enters the crushing box 1 and is driven by three sets of working motors 201 to rotate the three working rollers 202. The working rollers 202 on both sides rotate inward, while the middle working roller 202 is relatively fixed or has a certain relative movement with the two outer working rollers 202, so that the feed is squeezed and sheared between the working rollers 202 to achieve crushing and granulation. The crushed feed is collected through the discharge hopper 10.

[0042] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0043] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A three-roll crusher for feed pelleting, characterized in that: include: A crushing box (1), wherein a three-roller crushing structure (2) is installed inside the crushing box (1); A pre-treatment box (3), the pre-treatment box (3) is fixedly mounted on the top of the crushing box (1) via a guide hopper, and a feed box (4) is fixedly mounted on the top of the pre-treatment box (3); A pretreatment component (5), the pretreatment component (5) is installed inside the pretreatment box (3) and the feed box (4), and the pretreatment component (5) is used to pretreat the feed raw materials; The pre-processing assembly (5) comprises a primary crushing structure (501) installed inside the feed box (4), a screening structure (502) installed inside the pre-processing box (3), and a lifting structure (503) installed on one side of the crushing box (1).

2. A three-roll crusher for feed pelleting according to claim 1, characterized in that: The primary crushing structure (501) comprises a primary crushing motor (5011) mounted on one side of the feed box (4) by means of bolts, an active crushing roller (5012) rotatably mounted on the inner side wall of the feed box (4) and fixedly mounted on the output shaft of the primary crushing motor (5011), and a driven crushing roller (5013) rotatably mounted between the inner side walls of the feed box (4), wherein the active crushing roller (5012) is meshed with the driven crushing roller (5013).

3. A three-roll crusher for feed pelleting according to claim 2, characterized in that: A guide groove is provided on the inner side wall of the pretreatment box (3), and a return hopper (6) is installed on one side of the pretreatment box (3). The screening structure (502) comprises a fixed screening plate (5021) fixedly installed between the inner side walls of the pretreatment box (3), a cylinder (5022) installed on the outer side wall of the pretreatment box (3) by bolts, a staggered screening plate (5023) fixedly installed on the output shaft of the cylinder (5022), and a guide block (5024) fixedly welded to one side of the staggered screening plate (5023). The staggered screening plate (5023) is installed at the bottom of the fixed screening plate (5021) and fits with it, and the guide block (5024) is slidably connected to the inside of the guide groove.

4. A three-roll crusher for feed pelleting according to claim 3, characterized in that: A supporting plate (7) is fixedly welded to one side of the crushing box (1), and the lifting structure (503) comprises a lifting column (5031) fixedly welded to the top of the supporting plate (7), a lifting motor (5032) mounted on the top of the lifting column (5031) by bolts, and a spiral conveying rod (5033) rotatably mounted on the inner bottom wall of the lifting column (5031) and fixedly mounted on the output shaft of the lifting motor (5032).

5. A three-roll crusher for feed pelleting according to claim 4, characterized in that: One side of the bottom of the lifting column (5031) is connected to the return hopper (6), and the other side of the lifting column (5031) is fixedly provided with a feeding port (8). One side of the top of the lifting column (5031) is provided with a material guide column (9), and the material guide column (9) corresponds to the feed box (4).

6. A three-roll crusher for feed pelleting according to claim 1, characterized in that: The three-roller crushing structure (2) comprises three groups of working motors (201) mounted on one side of the crushing box (1) by bolts, and working rollers (202) rotatably mounted on the inner wall of the crushing box (1) and fixedly mounted on the output shaft of the working motor (201). A discharge hopper (10) is mounted at the bottom of the crushing box (1).

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