Extrusion device for composite biomass activated carbon
By designing a composite biomass activated carbon extrusion device with a detachable mounting ring and plug-in structure, the problem of loose connection between screening and extrusion was solved, achieving material purity and production process continuity, and improving product purity and equipment maintainability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIXIN CARBON IND CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, the screening and extrusion processes are loosely connected, resulting in unscreened impurities being mixed into the extrusion process, which affects product purity.
An extrusion device for composite biomass activated carbon was designed, which adopts a detachable mounting ring and plug-in structure. Impurities are initially filtered through a screen, and the material is conveyed and pressurized by a screw rod to ensure the purity of the material. The screen aperture can be adjusted or replaced as needed.
It improves the purity of materials and the continuity of the production process, ensures product purity, and enhances the maintainability and adaptability of the equipment through a detachable structure.
Smart Images

Figure CN224490212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of activated carbon preparation technology, and in particular to an extrusion device for composite biomass activated carbon. Background Technology
[0002] Activated carbon, also known as activated carbon black, is an amorphous carbon and a functional material. Its main component is carbon, which has a carbon skeleton structure. It also contains trace amounts of oxygen, hydrogen, nitrogen, sulfur, and other elements, thus forming a variety of functional groups and a rich porous structure.
[0003] However, in the existing technology, the existing screening module design is simple, the screen is fixed and cannot be replaced or the replacement is cumbersome, it is difficult to adjust the screening accuracy for different raw materials, and the connection between screening and extrusion is loose, which can easily lead to unscreened impurities being mixed into the extrusion process, affecting the purity of the product. Utility Model Content
[0004] The purpose of this invention is to solve the problem in the existing technology that the screening and extrusion process is loosely connected, which easily leads to unscreened impurities being mixed into the extrusion process and affecting the purity of the product. Therefore, this invention proposes an extrusion device for composite biomass activated carbon.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an extrusion device for composite biomass activated carbon, comprising a sleeve, an extrusion tube fixedly connected to the inner side of the sleeve, a screw rod rotatably connected to the inner side of the extrusion tube, a feed inlet fixedly connected to one end of the top of the extrusion tube, a limiting ring fixedly connected to the outer surface of the top of the feed inlet, an installation ring inserted into the inner side of the limiting ring, a screen installed inside the installation ring, a fixing block fixedly connected to the side wall of the limiting ring, a plug-in rod slidably connected to the inner side of the fixing block, a plug-in hole opened on the side wall of the installation ring, one end of the plug-in rod passing through the fixing block and the fixing block, and the other end of the plug-in rod being plugged into the plug-in hole.
[0006] Preferably, a motor is installed on the side wall of the sleeve, and the output end of the motor is fixedly connected to the screw rod.
[0007] Preferably, one end of the sleeve is fixedly connected to a discharge port.
[0008] Preferably, the outer surface of the extrusion tube has multiple extrusion holes.
[0009] Preferably, the width of one end of the plug rod is greater than the diameter of the through hole at one end of the fixing block, and a limit plate is fixedly connected to the outer surface of the plug rod.
[0010] Preferably, a spring is provided on the inner side of the fixing block, and the spring is sleeved on the outer surface of the plug rod.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. In this utility model, a screen is used for preliminary filtration to remove impurities and ensure the purity and consistency of the material. The screen aperture can be customized or replaced according to requirements. Qualified material is then evenly introduced into the extrusion tube through the feed port. A spiral rod is set inside the extrusion tube and rotates continuously under the drive of a motor or transmission mechanism to realize the directional conveying and pressurization of the material, pushing the material to be gradually compacted, plasticized and shaped. The extruded material is discharged from the end of the extrusion tube or the open end, and then undergoes further processing through the discharge port to ensure product integrity and process continuity. The mounting ring adopts a detachable structure and can be quickly disassembled and assembled through the plug rod and plug hole, which facilitates screen replacement and specification adjustment, and improves the maintainability and adaptability of the equipment.
[0013] 2. In this utility model, when disassembling the component, the plug rod must be pulled first. This action moves the limiting plate and compresses the spring to store potential energy. This step ensures the power source for the subsequent reset action and the stability and controllability of the disassembly process. During installation, the operator needs to insert the installation ring into the inner side of the limiting ring to form a pre-alignment state. Then, the plug rod is released, the compressed spring releases potential energy to push the limiting plate back, and drives the plug rod to reset synchronously and accurately enter the plug hole to achieve mechanical locking, ensuring a firm installation. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an extrusion device for composite biomass activated carbon proposed in this utility model.
[0015] Figure 2 This is a cross-sectional perspective view of the extrusion device for composite biomass activated carbon proposed in this utility model.
[0016] Figure 3 This is a three-dimensional structural diagram of the extrusion device for composite biomass activated carbon proposed in this utility model.
[0017] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the fixed block of the extrusion device for composite biomass activated carbon proposed in this utility model.
[0018] Legend: 1. Motor; 2. Sleeve; 3. Discharge port; 4. Extrusion tube; 41. Screw rod; 42. Extrusion hole; 43. Feed port; 44. Limiting ring; 45. Fixing block; 46. Insertion rod; 47. Spring; 48. Limiting plate; 5. Mounting ring; 51. Screen; 52. Insertion hole. Detailed Implementation
[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0021] Example 1: As Figures 1-3 As shown, this utility model provides an extrusion device for composite biomass activated carbon, including a sleeve 2, an extrusion tube 4 fixedly connected to the inner side of the sleeve 2, a screw rod 41 rotatably connected to the inner side of the extrusion tube 4, a feed inlet 43 fixedly connected to one end of the top of the extrusion tube 4, a limiting ring 44 fixedly connected to the outer surface of the top of the feed inlet 43, an installation ring 5 inserted into the inner side of the limiting ring 44, a screen 51 installed inside the installation ring 5, a fixing block 45 fixedly connected to the side wall of the limiting ring 44, a plug rod 46 slidably connected to the inner side of the fixing block 45, a plug hole 52 opened on the side wall of the installation ring 5, one end of the plug rod 46 passes through the fixing block 45 and the fixing block 45, and one end of the plug rod 46 is plugged into the plug hole 52.
[0022] The specific setup and function of this embodiment are described below. During the material extrusion molding process, the raw material is first fed into the mounting ring 5, which acts as a primary screening module to hold the raw material. After entering, the raw material first comes into contact with the screen 51 located at the bottom or inner wall of the mounting ring 5. The screen 51 serves as a preliminary filter, removing larger or non-compliant particle size impurities from the raw material, thereby ensuring the purity and consistency of the material in the subsequent extrusion process. The aperture of the screen 51 can be customized or replaced according to specific product specifications or process requirements to adapt to the screening needs of different particle size standards.
[0023] The qualified material after screening is evenly introduced into the extrusion tube 4 through the feed port 43 located at the bottom of the device. The extrusion tube 4 is the core structure of the entire extrusion process, and a screw propulsion device—screw 41—is installed inside it. During the extrusion operation, the screw 41 rotates continuously along the axial direction under the drive of the motor 1 or the mechanical transmission mechanism. This rotational motion realizes the directional conveying of the material on the one hand, and on the other hand, it applies radial and axial pressure to the material through the gradually tightening screw structure, so that the material is gradually compacted, plasticized, and formed into a specific shape.
[0024] After the material is fully extruded and shaped, it will be discharged through the extrusion hole 42 at the end of the extrusion tube 4 or directly from the open end of the extrusion tube 4. The finally extruded material is discharged through the downstream discharge port 3, which facilitates subsequent cooling, shearing, drying or packaging processes, ensuring the integrity of the product and the continuity of the production process.
[0025] Furthermore, to improve equipment maintainability and adaptability, the mounting ring 5 is designed with a detachable structure. When replacing the screen 51 or adjusting the screening specifications, quick assembly and disassembly can be achieved through a plug-in structure: the mounting ring 5 is securely connected to the pre-set plug-in holes 52 in the main body of the equipment via plug-in rods 46 located on its side or bottom. This plug-in method not only facilitates maintenance personnel in replacing the screen 51 without disassembling the entire device.
[0026] Example 2: Figure 3 and Figure 4 As shown, a motor 1 is installed on the side wall of the sleeve 2, and the output end of the motor 1 is fixedly connected to the screw rod 41. A discharge port 3 is fixedly connected to one end of the sleeve 2. Multiple extrusion holes 42 are opened on the outer surface of the extrusion tube 4. The width of one end of the insertion rod 46 is larger than the diameter of the through hole at one end of the fixing block 45, and a limit plate 48 is fixedly connected to the outer surface of the insertion rod 46. A spring 47 is provided inside the fixing block 45, and the spring 47 is sleeved on the outer surface of the insertion rod 46.
[0027] The overall effect of this embodiment is that, during component disassembly, the plug-in rod 46 must first be pulled. The movement of the plug-in rod 46 will drive the connected limiting plate 48 to produce a corresponding displacement. Since there is a compressive connection between the limiting plate 48 and the spring 47, the movement of the limiting plate 48 will force the spring 47 to be compressed and store elastic potential energy. This compression process not only provides the power basis for the subsequent reset action but also ensures the structural stability and controllability during the disassembly process.
[0028] During installation, the operator must first accurately insert the mounting ring 5 into the inner side of the limiting ring 44, ensuring it is pre-aligned with the insertion structure. Then, the insertion rod 46 is released. At this point, the compressed spring 47 releases its potential energy due to elastic recovery, pushing the limiting plate 48 to move along its original position. Because of the linkage between the limiting plate 48 and the insertion rod 46, the rebound of the limiting plate 48 will synchronously reset the insertion rod 46. During this process, the insertion rod 46 is guided into the insertion hole 52, thereby achieving precise positioning and mechanical locking of the insertion component, ensuring a secure and reliable installation.
[0029] During the spiral extrusion stage, the rotational power is provided by the motor 1, which drives the spiral rod 41 connected to the motor 1 shaft to rotate continuously. During the rotation, the spiral rod 41 generates axial thrust on the raw material through its spiral blade structure, causing the raw material to be continuously compressed and transported within the confined cavity. As the rotation continues, the raw material undergoes plastic deformation under the action of force, achieving a stable and continuous extrusion forming process.
[0030] The operating method and working principle of this device are as follows: During extrusion, the raw material is poured into the mounting ring 5, and after impurities are removed by screening through the screen 51, it enters the extrusion tube 4 through the feed port 43. During the extrusion process, the screw rod 41 rotates to gradually complete the extrusion molding. The molded material can be extruded through the extrusion hole 42, or extruded from one end of the extrusion tube 4, or pushed out through the discharge port 3, thus facilitating the molding of finished products of different particle sizes.
[0031] When screening through screen 51, the mounting ring 5 can be replaced according to screening requirements. During installation, the mounting ring 5 can be disassembled and installed by inserting the plug rod 46 into the plug hole 52.
[0032] During disassembly, pulling the plug rod 46 will cause the limiting plate 48 to move together, thereby compressing the spring 47; during installation, insert the mounting ring 5 into the inner side of the limiting ring 44, release the plug rod 46, and the elasticity of the spring 47 will push the limiting plate 48 to move, while simultaneously causing the plug rod 46 to move together, thereby completing the insertion and positioning of the plug hole 52.
[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A composite biomass activated carbon extrusion device, comprising a sleeve (2), an extrusion pipe (4) is fixedly connected to the inside of the sleeve (2), characterized in that: The inside of the extrusion pipe (4) is rotatably connected with a spiral rod (41), one end of the top of the extrusion pipe (4) is fixedly connected with a feeding port (43), the top outer surface of the feeding port (43) is fixedly connected with a limiting ring (44), the inside of the limiting ring (44) is inserted with a mounting ring (5), the inside of the mounting ring (5) is mounted with a screen (51), the side wall of the limiting ring (44) is fixedly connected with a fixed block (45), the inside of the fixed block (45) is slidably connected with an insertion rod (46), the side wall of the mounting ring (5) is provided with an insertion hole (52), one end of the insertion rod (46) penetrates through the fixed block (45) and the fixed block (45), and one end of the insertion rod (46) is inserted with the insertion hole (52).
2. The extrusion device of a composite biomass activated carbon according to claim 1, characterized in that: The side wall of the sleeve (2) is mounted with a motor (1), and the output end of the motor (1) is fixedly connected with the spiral rod (41).
3. The extrusion device for composite biomass activated carbon according to claim 1, characterized in that: One end of the sleeve (2) is fixedly connected with a discharge port (3).
4. The extrusion device for composite biomass activated carbon according to claim 1, characterized in that: The outer surface of the extrusion pipe (4) is provided with a plurality of extrusion holes (42).
5. The extrusion device for composite biomass activated carbon according to claim 1, characterized in that: The width of one end of the insertion rod (46) is greater than the hole diameter of one end of the fixed block (45), and the outer surface of the insertion rod (46) is fixedly connected with a limiting plate (48).
6. The extrusion device for composite biomass activated carbon according to claim 1, characterized in that: The inside of the fixed block (45) is provided with a spring (47), and the spring (47) is sleeved on the outer surface of the insertion rod (46).