A device for rapidly pretreating a feedstock of potato residue

By integrating the extrusion, dehydration, and dispersing of potato residue into a single process, the complex dehydration problem before mixing potato residue with corn stalks is solved, achieving efficient potato residue processing and direct mixing, improving production efficiency and reducing costs.

CN224461078UActive Publication Date: 2026-07-07天津市农业发展服务中心

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
天津市农业发展服务中心
Filing Date
2025-06-27
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In existing technologies, the dehydration process before mixing potato residue with corn stalks is complex, resulting in low production efficiency and increased costs. Furthermore, the potato residue is discharged in a blocky structure and requires additional crushing, which affects production efficiency.

Method used

Design a rapid pretreatment device for potato residue feed raw materials, which integrates potato residue extrusion, dehydration and dispersing. The device uses spiral blades and feed cutters to extrude, dehydrate and disperse the potato residue, forming granular output, which is then directly mixed with corn stalks.

Benefits of technology

This method achieves efficient dehydration and disintegration of potato residue, shortens processing time, improves production efficiency, reduces production costs, and ensures feed quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of potato residue feedstock fast pretreatment device, including extruding cylinder lying on support, the feeding port is opened to the rear end of extruding cylinder upwards, front end is opened discharge port, extruding cylinder inner chamber includes extruding chamber and scattering chamber by rear to front sequentially arranged, extruding chamber and scattering chamber smooth transition, the feeding port corresponds extruding chamber, discharge port corresponds scattering chamber, pivot is arranged in extruding cylinder, pivot is driven by motor, spiral blade is set in the position of its corresponding extruding chamber, corresponding scattering chamber position sets material shifting knife, the outer periphery of spiral blade and the inner wall of extruding cylinder sliding contact, spiral blade spacing gradually decreases along the direction of conveyance.The utility model in, the extrusion dewatering of potato residue is completed in the extruding chamber of extruding cylinder, the scattering of extruded potato residue is completed in scattering chamber, and potato residue is finally discharged in granular form by discharge port of extruding cylinder using gravity, can be directly mixed with straw feed, shorten feedstock processing time, ensure feed quality.
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Description

Technical Field

[0001] This utility model belongs to the field of feed production, and in particular relates to a rapid pretreatment device for potato residue feed raw materials. Background Technology

[0002] In the production of mixed fermentation of corn stalks and potato residue, the high water content and viscosity of potato residue increase the difficulty of mixing it with corn stalks. At the same time, the high water content of potato residue also leads to a short storage time for the mixture of potato residue and corn stalks. Therefore, potato residue must be dehydrated before being mixed with corn stalks.

[0003] Currently, screw conveyor extrusion dehydration is a common dehydration method. When applied to potato residue dehydration, the residue typically clumps together after being compressed and is discharged in block form. A crusher is then needed to break up the clumps before mixing it with corn stalks. This process increases feed processing time, leading to low production efficiency and higher production costs. Utility Model Content

[0004] In view of this, the present invention aims to propose a rapid pretreatment device for potato residue feed raw materials, which integrates potato residue extrusion, dehydration and dispersing, so that the potato residue is discharged in granular form after dehydration and can be directly mixed with corn stalks, thereby improving production efficiency and reducing production costs.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A rapid pretreatment device for potato residue feed raw materials includes an extrusion cylinder lying horizontally on a support. The extrusion cylinder has an inlet at its rear end facing upward and an outlet at its front end. The inner cavity of the extrusion cylinder includes an extrusion chamber and a dispersing chamber arranged sequentially from back to front, with a smooth transition between the extrusion chamber and the dispersing chamber. The inlet corresponds to the extrusion chamber and the outlet corresponds to the dispersing chamber. A rotating shaft is set inside the extrusion cylinder and is driven by a motor. The rotating shaft has helical blades at the position of the corresponding extrusion chamber and a material-pulling knife at the position of the corresponding dispersing chamber. The outer periphery of the helical blades slides in contact with the inner wall of the extrusion cylinder, and the spacing between the helical blades gradually decreases along the conveying direction.

[0007] Several water outlet holes are opened on the wall of the extrusion cylinder corresponding to the extrusion chamber.

[0008] Furthermore, the discharge port is located on the wall of the extrusion cylinder and faces downwards.

[0009] Furthermore, the extrusion cylinder is fitted with an outer cylinder at the corresponding extrusion chamber position. The outer cylinder and the extrusion cylinder are concentric and form an annular cavity between them. The outer cylinder has a drain outlet facing downwards on its wall.

[0010] The feed inlet extends into the outer cylinder, and a corresponding hopper is provided.

[0011] Furthermore, the extrusion cylinder is inclined and its front end is low, and the drain outlet is located at the front end of the outer cylinder.

[0012] Furthermore, the material-drawing blade has a flat strip-shaped plate structure, with its left and right edges arranged one in front of the other along the axis of rotation.

[0013] Furthermore, notches are provided on the left and right edges of the feed cutter.

[0014] Furthermore, casters are provided at the bottom of the bracket.

[0015] Compared with existing technologies, the rapid pretreatment device for potato residue feed raw materials described in this utility model has the following advantages:

[0016] In this invention, the potato residue is dehydrated by extrusion in the extrusion chamber of the extrusion cylinder, and the potato residue is dispersed in the dispersing chamber after extrusion, thus realizing an integrated structure for potato residue dehydration and dispersing. Gravity is used to make the potato residue finally discharged in granular form from the discharge port of the extrusion cylinder, which can be directly mixed with straw feed, shortening the feed raw material processing time and ensuring feed quality. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0018] Figure 1 This is a schematic diagram of a rapid pretreatment device for potato residue feed raw materials according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the material-pulling knife structure on the rotating shaft in an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1-Support; 2-Motor; 3-Extrusion cylinder; 31-Extrusion chamber; 32-Dispersion chamber; 33-Water outlet; 34-Discharge port; 35-Inlet; 4-Outer cylinder; 5-Spiral blade; 6-Rotating shaft; 7-Pulling knife; 71-Notch; 8-Hopper; 9-Drainage outlet. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figure 1As shown, a rapid pretreatment device for potato residue feed raw materials includes a support frame 1 and an extrusion cylinder 3. Casters with brakes are installed at the bottom of the support frame 1. The extrusion cylinder 3 is a cylindrical structure, tilted and horizontally positioned on the support frame 1, with its front end lower than its rear end to facilitate raw material transport. An inlet 35 is located at the rear end of the extrusion cylinder 3 facing upwards, and an outlet 34 is located at the front end facing downwards. A hopper 8 is correspondingly provided at the inlet 35 to allow the potato residue to be extruded to be fed into the extrusion cylinder 3.

[0024] The inner cavity of the extrusion cylinder 3 includes an extrusion chamber 31 and a dispersing chamber 32 arranged sequentially from back to front. A separator is provided between the extrusion chamber 31 and the dispersing chamber 32 to ensure a smooth transition. The feed inlet 35 is positioned corresponding to the extrusion chamber 31. Several water outlet holes 33 are formed on the cylinder wall of the extrusion cylinder 3 at the corresponding extrusion chamber 31 positions; alternatively, the water outlet holes 33 can be formed on the cylinder wall below the centerline of the extrusion cylinder 3. A rotating shaft 6 is installed inside the extrusion cylinder 3, extending from the rear end of the extrusion cylinder 3 and connected to a motor 2. The motor 2 drives the rotating shaft 6 to rotate. The rotating shaft 6 has spiral blades 5 at the corresponding extrusion chamber 31 positions and 2-4 feeding knives 7 at the corresponding dispersing chamber 32 positions. The outer periphery of the spiral blades 5 slides in contact with the inner wall of the extrusion cylinder 3, and the spacing between the spiral blades 5 gradually decreases along the conveying direction. In this embodiment, the rotating shaft 6 drives the spiral blades 5 to rotate, pushing the potato residue in the extrusion chamber 31 forward into the dispersing chamber 32.

[0025] The operating principle of this device is as follows: the potato residue to be processed enters the extrusion chamber 31 through the hopper 8. The motor 2 is turned on, driving the rotating shaft 6 to rotate, which in turn drives the spiral blades 5 to rotate and push the potato residue in the extrusion chamber 31 forward. Since the spacing of the spiral blades 5 gradually decreases along the conveying direction, the spiral blades 5 extrude and dehydrate the raw material while pushing the potato residue forward. The dehydrated water is discharged through the water outlet 33. After the potato residue is dehydrated in the extrusion chamber 31, it enters the spreading chamber 32. The rotating shaft 6 drives the feeding knife 7 to rotate, breaking up the raw material entering the spreading chamber 32 and forming granular residue. The granular potato residue is then discharged through the discharge port 34 by gravity.

[0026] In this invention, an outer cylinder 4 is fitted over the extrusion cylinder 3 at the corresponding extrusion chamber 31. The outer cylinder 4 and the extrusion cylinder 3 are concentric, forming an annular cavity between them. A hopper 8 is provided after the feed inlet 35 extends out of the outer cylinder 4. A drain outlet 9 is provided at the front end of the outer cylinder 4 facing downwards. The drain outlet 9 is connected to the annular cavity to facilitate the collection of water released from the potato residue.

[0027] In this utility model, the material-feeding blade 7 is a flat strip-shaped plate structure, with its left and right edges arranged one in front of the other along the axis of the rotating shaft 6. Figure 2As shown, notches 71 are provided on the left and right edges of the feeding blade 7, so that the left and right edges of the feeding blade 7 form a toothed structure, which can quickly break up the clumps of potato residue and improve the effect of breaking up the clumps of potato residue.

[0028] This invention integrates the potato residue extrusion and dehydration structure with the dispersing structure, dispersing the raw materials while dehydrating them, and using gravity to discharge the dispersed potato residue. This allows for direct and rapid mixing with corn stalks, shortening the feed raw material processing time and ensuring feed quality.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid pretreatment device for potato residue feed raw materials, characterized in that: The extrusion cylinder (3) is horizontally placed on the support (1). The extrusion cylinder (3) has an inlet (35) at the rear end and an outlet (34) at the front end. The inner cavity of the extrusion cylinder (3) includes an extrusion chamber (31) and a dispersing chamber (32) arranged sequentially from back to front. The extrusion chamber (31) and the dispersing chamber (32) are smoothly transitioned. The inlet (35) corresponds to the extrusion chamber (31) and the outlet (34) corresponds to the dispersing chamber (32). A rotating shaft (6) is set inside the extrusion cylinder (3). The rotating shaft (6) is driven by a motor (2). The rotating shaft (6) has a spiral blade (5) at the position of its corresponding extrusion chamber (31) and a material-pulling knife (7) at the position of its corresponding dispersing chamber. The outer periphery of the spiral blade (5) slides in contact with the inner wall of the extrusion cylinder (3). The spacing between the spiral blades (5) gradually decreases along the conveying direction. Several water outlet holes (33) are opened on the cylinder wall of the extrusion cylinder (3) corresponding to the extrusion chamber (31).

2. The rapid pretreatment device for potato residue feed raw materials according to claim 1, characterized in that: The discharge port (34) is located on the cylinder wall of the extrusion cylinder (3) and the discharge port (34) faces downward.

3. A rapid pretreatment device for potato residue feed raw materials according to claim 1 or 2, characterized in that: The extrusion cylinder (3) is fitted with an outer cylinder (4) at the corresponding extrusion cavity (31). The outer cylinder (4) and the extrusion cylinder (3) are concentric and form an annular cavity between them. The outer cylinder (4) has a drain outlet (9) with its wall facing downward. The feed inlet (35) extends out to the outer cylinder (4), and a corresponding hopper (8) is provided.

4. The rapid pretreatment device for potato residue feed raw materials according to claim 3, characterized in that: The extrusion cylinder (3) is inclined and its front end is low, and the drain outlet (9) is located at the front end of the outer cylinder (4).

5. The rapid pretreatment device for potato residue feed raw materials according to claim 1, characterized in that: The material-pulling knife (7) is a flat strip plate structure, with its left and right edges arranged one in front of the other along the axis of rotation (6).

6. The rapid pretreatment device for potato residue feed raw materials according to claim 2, characterized in that: The feed cutter (7) has notches (71) on its left and right edges, respectively.

7. The rapid pretreatment device for potato residue feed raw materials according to claim 1, characterized in that: The bracket (1) is equipped with casters at the bottom.