Equipment for preparing soil conditioner from rice husks

Through the combination device of the taper extrusion rod and the conical extrusion cylinder and the heating coil processing, the difficulties in storage and transportation of rice husks and pests are solved, and efficient processing and quality assurance of rice husks are achieved.

CN223197727UActive Publication Date: 2025-08-08HUNAN UNIV
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Patent Information

Application Number
CN202422186545.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2025-08-08
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

Low husk density leads to difficulties in storage and transportation, and pests and diseases may be introduced during storage and transportation, affecting soil quality and crop yield.

Method used

The extrusion modification device of taper extrusion rod and conical extrusion cylinder combined with spiral extrusion sheet is used to modify the rice husk at high temperature with external heating coils to kill insect eggs and larvae, while increasing the bulk density of the rice husk.

Benefits of technology

It improves the bulk density of rice husks, facilitates storage and transportation, and kills insect eggs and larvae through high temperature treatment to ensure soil quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of waste crop treatment and processing, in particular to equipment for preparing a soil conditioner from rice hulls, which comprises a rack, a driving device, an extrusion modification device and a hopper, and the extrusion modification device comprises an extrusion rod, an extrusion cylinder, a heating coil and a spiral extrusion sheet. The extrusion rod is connected with a driving device, the extrusion cylinder is provided with a feeding end, and a hopper is fixed above the feeding end and used for containing rice hull to-be-processed materials. The extrusion cylinder is coaxially sleeved on the extrusion rod, and a heating coil is arranged around the outer surface of the extrusion cylinder. According to the utility model, the tapered extrusion rod is matched with the extrusion cylinder to compress rice hulls, so that the processed rice hulls have larger volume density and are convenient to store and transport. And meanwhile, the external heating coil can be used for carrying out high-temperature modification on the rice hull materials in the extrusion cylinder, eggs and larvae in the rice hull materials are killed, and the quality of soil in the subsequent using process is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the field of waste crop treatment and processing, in particular to equipment for preparing soil conditioner from rice husks. Background Art

[0002] Rice husk is a by-product of rice processing and an important agricultural and forestry biomass resource. Therefore, vigorously developing rice husk biomass resource utilization technology in my country is of great significance to improving environmental pollution and reducing carbon emissions.

[0003] Using rice husks, which contain a variety of biological components, to improve cultivated soil is a common technique. However, this approach faces several challenges: rice husks have a low density, making them difficult to store and transport. Furthermore, during storage and transportation, the husks contain microorganisms, insect eggs, and larvae. These conditions can introduce harmful pests and diseases into the soil, contaminating it and leading to reduced crop yields. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] The utility model provides equipment for preparing soil conditioner from rice husks, aiming to solve the problems of storage and transportation difficulties caused by low volume density during the process of preparing soil conditioner from rice husks and the problems of pest or egg prevention and control.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: a frame, a driving device, an extrusion modification device and a hopper. The driving device and the extrusion modification device are horizontally placed on the frame and connected to each other. The extrusion modification device includes an extrusion rod, an extrusion cylinder, a heating coil, and a spiral extrusion sheet.

[0008] The input end of the extrusion rod is connected to the driving device. The extrusion cylinder has a feeding end. A hopper is fixed above the feeding end. The hopper is used to place rice husks to be processed.

[0009] The extrusion barrel is coaxially mounted on the extrusion rod. A heating coil surrounds the outer surface of the extrusion barrel. The extrusion barrel is tapered, and the outer circumferential area of the extrusion rod corresponding to the extrusion barrel is a tapered area. The spiral extrusion sheet is located between the tapered area of the extrusion rod and the extrusion barrel and is connected to the tapered area of the extrusion rod. The imaginary circumference of the spiral extrusion sheet is a tapered barrel. The tapered area of the extrusion rod, the imaginary circumference of the spiral extrusion sheet, and the extrusion barrel have the same taper and inclination, and the large end of the extrusion barrel is adjacent to the drive device.

[0010] A further technical solution is that the interval between the imaginary circumscribed cylinder of the spiral extrusion sheet and the inner wall of the extrusion cylinder is in the range of 1-1.2 mm.

[0011] A further technical solution is that the taper ranges from 1 / 10 to 1 / 15.

[0012] A further technical solution is that an end cover is installed on the side of the large end of the extrusion barrel, the side of the small end of the extrusion barrel is the discharge port, and the feed port is located at the top of the large end of the extrusion barrel.

[0013] A further technical solution is that the drive device includes a drive motor and a reducer, wherein the output end of the reducer is connected to the input end of the extrusion rod, the drive motor and reducer are coaxially connected via a coupling, and are fixed to one side of the frame via a first support. One end of the first support has a boss, and the drive motor is fixed above the boss. The other end of the first support has a connecting plate and two fixing plates, and the connecting plate has a connecting flange. The reducer is fixed to the first support via the connecting flange. The two fixing plates have through-holes, and one end of the extrusion rod is mounted in the through-hole via a bearing.

[0014] A further technical solution is that the extrusion barrel is fixed to the other side of the frame via a second support, the bottom of which is fixed to the frame via a height-adjustable connector. A plurality of ribs are arranged in sequence on the second support, and the ribs have notches formed therein to cooperate with the extrusion barrel and thus support the bottom of the extrusion barrel.

[0015] A further technical solution is to further include a hopper support frame, through which the hopper is fixed above the feed port. The hopper has a feed hole at the bottom and a feed guide hole at the top of the hopper support frame. The feed hole, feed guide hole and feed port are vertically aligned and sequentially connected to form a feed channel.

[0016] A further technical solution is that the hopper support frame is a U-shaped frame, and the two side plates of the U-shaped frame are connected to the ribs and fixed by connecting pieces.

[0017] A further technical solution is to further include a power supply, which supplies power to the heating coil and has adjustable power, and the heating coil surrounds a portion or the entire extrusion cylinder.

[0018] (3) Beneficial effects

[0019] The beneficial effects of the utility model are:

[0020] Compared to traditional screw conveyors, the tapered extrusion rod and extrusion barrel further compress the rice husks, achieving a higher volume density after processing, making storage and transportation easier. Furthermore, an external heating coil heats the rice husk material within the extrusion barrel, killing insect eggs and larvae, ensuring soil quality during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the equipment for preparing soil amendment from rice husk;

[0022] Figure 2 A schematic diagram of the front structure of equipment for preparing soil conditioner from rice husks;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the extrusion modification device.

[0024] [Description of Reference Numerals]

[0025] 1: rack;

[0026] 2: driving device; 21: driving motor; 22: speed reducer; 23: coupling;

[0027] 3: Extrusion modification device; 31: Extrusion rod; 32: Extrusion cylinder; 33: Heating coil; 34: Spiral extrusion sheet; 35: End cap;

[0028] 4: Hopper;

[0029] 5: first support; 51: boss; 52: connecting plate; 53: fixing plate;

[0030] 6: Second support; 61: Height-adjustable connector;

[0031] 7: Hopper support frame. DETAILED DESCRIPTION

[0032] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] The utility model provides a device for preparing soil conditioner from rice husk, referring to Figure 1 and Figure 2 As shown, it includes a frame 1, a driving device 2, an extrusion modification device 3 and a hopper 4. The driving device 2 and the extrusion modification device 3 are horizontally placed on the frame 1 and connected to each other. The extrusion modification device 3 includes an extrusion rod 31, an extrusion cylinder 32, a heating coil 33, and a spiral extrusion sheet 34.

[0037] The input end of the extrusion rod 31 is connected to the driving device 2. The extrusion cylinder 32 has a feeding end. A hopper 4 is fixed above the feeding end. The hopper 4 is used to place rice husks to be processed.

[0038] The extrusion cylinder 32 is coaxially sleeved on the extrusion rod 31. The outer surface of the extrusion cylinder 32 is surrounded by a heating coil 33. The extrusion cylinder 32 is a conical cylinder, and the outer peripheral area of the extrusion rod 31 corresponding to the extrusion cylinder 32 is a conical area. The spiral extrusion sheet 34 is located between the conical area of the extrusion rod 31 and the extrusion cylinder 32 and is connected to the conical area of the extrusion rod 31. The imaginary external cylinder of the spiral extrusion sheet 34 is a conical cylinder. (It should be noted here that the imaginary external cylinder is a barrel structure formed by the position where the outermost edge of the spiral extrusion sheet 34 passes during its rotation, which is equivalent to the external barrel of the spiral extrusion sheet 34). The conical area of the extrusion rod 31, the imaginary external cylinder of the spiral extrusion sheet 34 and the extrusion cylinder 32 have the same taper and inclination direction, and the large end side of the extrusion cylinder 32 is close to the driving device 2. (It should be noted here that the conical area of the extrusion rod 31, the imaginary external cylinder of the spiral extrusion sheet 34 and the extrusion cylinder 32 are the main structures for achieving rice husk extrusion. Therefore, in the process from feeding to discharging, the cross-sectional diameters of the three are gradually reduced, continuously squeezing the internal space, and gradually compacting the loose rice husk material; the heating coil 33 is the main component for achieving thermal modification of the rice husk. Therefore, the extrusion rod 31, the extrusion cylinder 32 and the spiral extrusion sheet 34 are preferably made of metal).

[0039] Preferably, the spacing between the imaginary circumference of the spiral extrusion piece 34 and the inner wall of the extrusion cylinder 32 is in the range of 1-1.2 mm. A larger gap will reduce the extrusion efficiency, while a smaller gap will apply a large axial load to the fixed bearing.

[0040] Preferably, the tapered area of the extrusion rod 31 , the imaginary circumscribed cylinder of the spiral extrusion piece 34 and the extrusion cylinder 32 have the same taper, and the taper range is 1 / 10 to 1 / 15.

[0041] Furthermore, an end cap 35 is installed on the side of the large end of the extrusion cylinder 32, a discharge port is located on the side of the small end of the extrusion cylinder 32, and a feed port is located at the top of the large end of the extrusion cylinder 32. The end cap 35 is fixed to the side of the large end of the extrusion cylinder 32 by bolt connection. Since the end cap 35 does not need to bear a large load during the extrusion process, a quick snap connection method can also be selected as the fixing method.

[0042] Furthermore, the drive device 2 includes a drive motor 21 and a reducer 22, wherein the output end of the reducer 22 is connected to the input end of the extrusion rod 31. The drive motor 21 and the reducer 22 are coaxially connected via a coupling 23 and fixed to one side of the frame 1 via a first support 5. The coupling 23 in this embodiment is preferably a plum blossom elastic coupling, which has a small radial installation dimension and saves space.

[0043] Furthermore, one end of the first support 5 has a boss 51, and the drive motor 21 is fixed above the boss 51. The other end of the first support 5 has a connecting plate 52 and two fixed plates 53. The connecting plate 52 has a connecting flange, and the reducer 22 is fixed to the first support 5 through the connecting flange. A through hole is opened on the two fixed plates 53, and one end of the extrusion rod 31 is installed in the through hole through a bearing.

[0044] The extrusion cylinder 32 in this embodiment is fixed to the other side of the frame 1 through the second support 6. The bottom of the second support 6 is fixed to the frame 1 through an adjustable height connector 61. The adjustable height connector 61 is preferably an adjusting screw.

[0045] Furthermore, a plurality of ribs are sequentially arranged on the second support 6 , and the plurality of ribs cooperate with the extrusion cylinder 32 through notches provided thereon and are then supported below the extrusion cylinder 32 .

[0046] In this embodiment, three ribs are specifically provided and have different heights. The notches opened on them have a shape that matches the lower surface of the extrusion cylinder. Since the hopper 4 is heavy, two of the ribs are provided directly below the hopper 4, which can provide better support.

[0047] Furthermore, the equipment for preparing soil conditioner from rice husks also includes a hopper support frame 7, through which the hopper 4 is fixed above the feed port. The hopper 4 has a feed hole at the bottom, and a feed guide hole at the top of the hopper support frame 7. The feed hole, feed guide hole, and feed port are vertically aligned and sequentially connected to form a feed channel.

[0048] Optionally, the hopper support frame 7 is a U-shaped frame, and both side plates of the U-shaped frame are connected to the ribs 61 and fixed by connecting pieces.

[0049] Furthermore, the equipment for preparing soil conditioner from rice husks also includes a power supply, which supplies power to the heating coil 33 and has adjustable power. The heating coil 33 surrounds a portion or the entire extrusion cylinder 32 .

[0050] Preferably, the power supply is an AC power supply, and the heating power is changed by adjusting the power frequency to achieve the purpose of adjustable power.

[0051] It should be understood that the above description of the specific embodiments of the present invention is merely for the purpose of illustrating the technical approach and features of the present invention. Its purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, the present invention is not limited to the above-described specific embodiments. Any changes or modifications made within the scope of the claims of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for preparing soil conditioner from rice husks, characterized in that: The invention comprises a frame (1), a driving device (2), an extrusion modification device (3) and a hopper (4); the driving device (2) and the extrusion modification device (3) are both horizontally placed on the frame (1) and connected to each other; the extrusion modification device (3) comprises an extrusion rod (31), an extrusion cylinder (32), a heating coil (33) and a spiral extrusion sheet (34); The input end of the extrusion rod (31) is connected to the driving device (2), and the extrusion cylinder (32) has a feeding end, and the hopper (4) is fixed above the feeding end, and the hopper (4) is used to place rice husks to be processed; The extrusion cylinder (32) is coaxially sleeved on the extrusion rod (31), the heating coil (33) is arranged around the outer surface of the extrusion cylinder (32), the extrusion cylinder (32) is a conical cylinder, and the outer peripheral area of the extrusion rod (31) corresponding to the extrusion cylinder (32) is a conical area; The spiral extrusion piece (34) is located between the conical area of the extrusion rod (31) and the extrusion cylinder (32) and is connected to the conical area of the extrusion rod (31), and the imaginary circumscribed cylinder of the spiral extrusion piece (34) is a conical cylinder; The conical area of the extrusion rod (31), the imaginary circumscribed cylinder of the spiral extrusion sheet (34) and the extrusion cylinder (32) have the same taper and tilt direction, and the large end side of the extrusion cylinder (32) is close to the driving device (2).

2. The equipment for preparing soil conditioner from rice husks according to claim 1, characterized in that: The spacing between the imaginary external cylinder of the spiral extrusion sheet (34) and the inner wall of the extrusion cylinder (32) is in the range of 1-1.2 mm.

3. The equipment for preparing soil conditioner from rice husks according to claim 1, characterized in that: The taper ranges from 1 / 10 to 1 / 15.

4. The equipment for preparing soil conditioner from rice husks according to claim 1, characterized in that: An end cap (35) is installed on the side of the large end of the extrusion cylinder (32), a discharge port is provided on the side of the small end of the extrusion cylinder (32), and a feed port is provided on the top of the large end of the extrusion cylinder (32).

5. The equipment for preparing soil conditioner from rice husks according to claim 4, characterized in that: The driving device (2) comprises a driving motor (21) and a reducer (22), wherein the output end of the reducer (22) is connected to the input end of the extrusion rod (31), and the driving motor (21) and the reducer (22) are coaxially connected via a coupling (23) and fixed to one side of the frame (1) via a first support (5); One end of the first support (5) has a boss (51), and the drive motor (21) is fixed above the boss (51). The other end of the first support (5) has a connecting plate (52) and two fixing plates (53). The connecting plate (52) has a connecting flange, and the reducer (22) is fixed to the first support (5) through the connecting flange. Through holes are provided on the two fixing plates (53), and one end of the extrusion rod (31) is installed in the through hole through a bearing.

6. The equipment for preparing soil conditioner from rice husks according to claim 5, characterized in that: The extrusion cylinder (32) is fixed to the other side of the frame (1) via a second support (6), and the bottom of the second support (6) is fixed to the frame (1) via a height-adjustable connecting piece (61); A plurality of ribs are arranged in sequence on the second support (6), and the plurality of ribs cooperate with the extrusion cylinder (32) by providing notches thereon and are then supported below the extrusion cylinder (32).

7. The equipment for preparing soil conditioner from rice husks according to claim 6, characterized in that: It also includes a hopper support frame (7), and the hopper (4) is fixed above the feed port via the hopper support frame (7); The bottom of the hopper (4) is provided with a feed hole, and the top of the hopper support frame (7) is provided with a feed guide hole. The feed hole, the feed guide hole and the feed port correspond vertically and are connected in sequence to form a feed channel.

8. The equipment for preparing soil conditioner from rice husks according to claim 7, characterized in that: The hopper support frame (7) is a U-shaped frame, and the two side plates of the U-shaped frame are connected to the ribs and fixed by connecting pieces.

9. The equipment for preparing soil conditioner from rice husks according to claim 1, characterized in that: It also includes a power supply, which supplies power to the heating coil (33) and has adjustable power. The heating coil (33) surrounds a section or the entire extrusion cylinder (32).