Efficient squeezing filter device

Abstract

The utility model discloses an efficient press filter device, which relates to the technical field of press filters and comprises a press cylinder, a feed port extending upwards is arranged on the top wall of the press cylinder, a discharge port extending downwards is arranged on the bottom wall of the press cylinder, and a conveying shaft is rotatably mounted in the press cylinder. A conveying shaft is arranged in the squeezing barrel, squeezing blades are fixedly mounted on the conveying shaft, a driving motor for driving the conveying shaft to rotate is mounted on the end face of one end of the squeezing barrel, a mesh plate is arranged on the bottom wall of the squeezing barrel, a liquid collecting box corresponding to the mesh plate is mounted on the bottom wall of the squeezing barrel, and a mounting barrel is mounted at a port of the feeding port; and a feeding pipe is arranged on the side wall of the mounting cylinder, and an extrusion cylinder is slidably mounted in the mounting cylinder. According to the utility model, the material filling rate is improved, the single-time squeezing effect is obviously improved by combining the secondary squeezing of the squeezing blades in the squeezing cylinder, the squeezing procedures are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressing and filtering machine technology, specifically to a high-efficiency pressing and filtering machine device. Background Technology

[0002] In the field of solid-liquid separation and material handling, screw press filters are widely used in food processing, environmental wastewater treatment, and biomass processing industries due to their compact structure and continuous operation. Screw press filters use the rotation of a conveyor auger to push and press materials, achieving the separation of liquids and the concentration of solids within the material.

[0003] However, existing screw press filters have significant drawbacks in actual operation. They primarily rely on the material's own weight to fall, and during the material conveying and pressing process, the continuous operation of the conveying auger makes it difficult for the material to fully fill the gaps between the augers. This inadequate filling results in poor single-pass pressing efficiency, failing to effectively squeeze out the liquid from the material. Consequently, multiple pressing processes are required, increasing equipment costs and operating energy consumption. Furthermore, multiple processes extend material processing time, reducing production efficiency and making it difficult to meet the demands of large-scale, high-efficiency material processing.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency pressing and filtering machine device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a high-efficiency pressing and filtering machine device, including a pressing cylinder, an upwardly extending feed inlet on the top wall of the pressing cylinder, a downwardly extending discharge outlet on the bottom wall of the pressing cylinder, a conveying shaft rotatably mounted inside the pressing cylinder, pressing blades fixedly mounted on the conveying shaft, a drive motor for driving the conveying shaft to rotate mounted on one end face of the pressing cylinder, a perforated plate on the bottom wall of the pressing cylinder, a liquid collection box corresponding to the perforated plate mounted on the bottom wall of the pressing cylinder, an installation cylinder mounted at the feed inlet port, a feeding pipe mounted on the side wall of the installation cylinder, a squeezing cylinder slidably mounted inside the installation cylinder, and a drive mechanism for driving the squeezing cylinder to move up and down.

[0007] Furthermore, the drive mechanism includes a crankshaft rotatably mounted inside the mounting cylinder, a connecting rod rotatably mounted on the crankshaft, and the bottom end of the connecting rod rotatably connected to the extrusion cylinder.

[0008] Furthermore, the drive mechanism also includes a driven gear mounted on the crankshaft, a servo motor is installed inside the mounting cylinder, the drive end of the servo motor is connected to a driving gear, and the driving gear meshes with the driven gear.

[0009] Furthermore, the extrusion cylinder has an installation cavity inside, and a pressure column that slides along the axial direction of the extrusion cylinder is provided inside the installation cavity. One end of the pressure column extending into the installation cavity is connected to a limit plate, and the other end of the pressure column extends to the bottom of the extrusion cylinder. A return spring is sleeved on the part of the pressure column located inside the installation cavity.

[0010] Furthermore, one end of the reset spring is connected to the limiting plate, and the other end of the reset spring is connected to the inner wall of the mounting cavity. In the initial state, the limiting plate is located in the middle of the mounting cavity.

[0011] Furthermore, multiple pressure columns are provided, and the multiple pressure columns are arranged in a circumferential array on the extrusion cylinder.

[0012] Furthermore, a bearing is provided at the end of the crankshaft, and the crankshaft is connected to the inner wall of the mounting cylinder through the bearing.

[0013] Furthermore, the extrusion cylinder has a cylindrical structure, and its outer wall is fitted with the inner wall of the mounting cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model solves the problem that the material is difficult to fill the gap of the screw conveyor in the traditional spiral press filter by pre-pressing the material through the extrusion cylinder and its driving mechanism inside the installation cylinder, thereby improving the material filling rate. Combined with the secondary pressing by the pressing blades inside the pressing cylinder, it significantly improves the single pressing effect, reduces the pressing process, and improves production efficiency.

[0016] 2. The design of the pressure column, limiting plate, and return spring in this utility model enables the extrusion cylinder to adaptively adjust the extrusion force according to the material state and hardness, avoiding equipment damage and improving the adaptability of the device to different materials; the gear meshing transmission can precisely control the movement frequency and speed of the extrusion cylinder, further enhancing the adaptability of the device to the pressing needs of different materials. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the right-side structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the left-side structure of this utility model;

[0019] Figure 3 This is a front view structural diagram of the present utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0021] In the diagram: 1. Pressing cylinder; 2. Feed inlet; 3. Discharge outlet; 4. Drive motor; 5. Liquid collection box; 6. Mesh plate; 7. Conveyor shaft; 8. Pressing blades; 9. Mounting cylinder; 10. Feeding pipe; 11. Crankshaft; 12. Driven gear; 13. Drive gear; 14. Servo motor; 15. Connecting rod; 16. Extrusion cylinder; 17. Pressing column; 18. Limiting plate; 19. Return spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution: a high-efficiency pressing and filtering machine device, including a pressing cylinder 1, an upwardly extending feed inlet 2 on the top wall of the pressing cylinder 1, a downwardly extending discharge outlet 3 on the bottom wall of the pressing cylinder 1, a conveying shaft 7 rotatably mounted inside the pressing cylinder 1, pressing blades 8 fixedly mounted on the conveying shaft 7, a drive motor 4 for driving the conveying shaft 7 to rotate mounted on the end face of one end of the pressing cylinder 1, a perforated plate 6 on the bottom wall of the pressing cylinder 1, a liquid collection box 5 corresponding to the perforated plate 6 mounted on the bottom wall of the pressing cylinder 1, an installation cylinder 9 mounted at the feed inlet 2, a feeding pipe 10 on the side wall of the installation cylinder 9, a squeezing cylinder 16 slidably mounted inside the installation cylinder 9, and a drive mechanism for driving the squeezing cylinder 16 to move up and down.

[0024] Specifically, the material enters the mounting cylinder 9 through the feeding pipe 10, and then enters the pressing cylinder 1 through the feed inlet 2. The drive motor 4 drives the conveyor shaft 7 to rotate, and the pressing blades 8 on the conveyor shaft 7 push the material to move and press it inside the pressing cylinder 1. The liquid in the material flows into the liquid collection box 5 through the mesh plate 6, while the solid material is discharged from the discharge outlet 3. At the same time, the drive mechanism drives the extrusion cylinder 16 to move up and down back and forth inside the mounting cylinder 9. The extrusion cylinder 16 can pre-extract the material before it enters the feed inlet 2, making the material more compact and facilitating subsequent pressing. The system includes an inlet 2, an outlet 3, a perforated plate 6, and a liquid collection box 5, enabling a complete process of material feeding, pressing, solid-liquid separation, and discharge. The conveying and pressing structure, consisting of a drive motor 4 and pressing blades 8, allows for continuous pressing of materials. The installation of the cylinder 9, feeding pipe 10, and extrusion cylinder 16, along with their driving mechanism, effectively solves the problem of materials failing to fill the auger gap in existing technologies. Pre-extrusion ensures more complete material filling, improves the single-pressing effect, reduces pressing steps, lowers equipment costs and energy consumption, and increases production efficiency.

[0025] As a technical optimization of this utility model, the drive mechanism includes a crankshaft 11 rotatably installed inside the mounting cylinder 9, a connecting rod 15 rotatably installed on the crankshaft 11, and the bottom end of the connecting rod 15 rotatably connected to the extrusion cylinder 16.

[0026] Specifically, the servo motor 14 drives the drive gear 13 to rotate, and the drive gear 13 meshes with the driven gear 12, thereby driving the crankshaft 11 to rotate. When the crankshaft 11 rotates, it drives the extrusion cylinder 16 to reciprocate up and down inside the mounting cylinder 9 through the connecting rod 15, thereby realizing the extrusion action on the material.

[0027] As a technical optimization of this utility model, the drive mechanism also includes a driven gear 12 mounted on the crankshaft 11, a servo motor 14 installed inside the mounting cylinder 9, and a drive gear 13 connected to the drive end of the servo motor 14, with the drive gear 13 meshing with the driven gear 12.

[0028] Specifically, the servo motor 14 serves as a power source, and the drive gear 13 connected to its drive end meshes with the driven gear 12 mounted on the crankshaft 11. When the servo motor 14 rotates, the drive gear 13 drives the driven gear 12, thereby driving the crankshaft 11 to rotate and providing power for the movement of the extrusion cylinder 16.

[0029] As a technical optimization of this utility model, the extrusion cylinder 16 has an installation cavity inside, and a pressure column 17 that slides along the axial direction of the extrusion cylinder 16 is provided inside the installation cavity. One end of the pressure column 17 extending into the installation cavity is connected to a limit plate 18, and the other end of the pressure column 17 extends to the bottom of the extrusion cylinder 16. A reset spring 19 is sleeved on the part of the pressure column 17 located inside the installation cavity.

[0030] Specifically, when the extrusion cylinder 16 moves downward to extrude the material, the pressure column 17 will slide upward in the mounting cavity due to the reaction force of the material, compressing the return spring 19; when the extrusion cylinder 16 moves upward, the return spring 19 will restore its deformation, pushing the limit plate 18 and the pressure column 17 downward to reset, so that the pressure column 17 can always be in contact with the material and maintain a certain extrusion effect.

[0031] As a technical optimization of this utility model, one end of the reset spring 19 is connected to the limiting plate 18, and the other end of the reset spring 19 is connected to the inner wall of the mounting cavity. In the initial state, the limiting plate 18 is located in the middle of the mounting cavity.

[0032] Specifically, in the initial state, the limiting plate 18 is located in the middle of the mounting cavity, ensuring that the pressure column 17 has a suitable position in the initial state, providing reasonable space for its up-and-down sliding during the extrusion process. During the extrusion process, the return spring 19 compresses and resets according to the reaction force of the material, driving the pressure column 17 to move, thereby realizing dynamic extrusion of the material.

[0033] As a technical optimization of this utility model, multiple pressure columns 17 are provided, and the multiple pressure columns 17 are arranged in a circumferential array on the extrusion cylinder 16.

[0034] Specifically, multiple pressure columns 17 arranged in a circular array can simultaneously compress the material from multiple directions when the extrusion cylinder 16 moves up and down. Compared with a single pressure column 17, the material can be subjected to more uniform pressure and the extrusion is more thorough.

[0035] As a technical optimization of this utility model, a bearing is provided at the end of the crankshaft 11, and the crankshaft 11 is connected to the inner wall of the mounting cylinder 9 through the bearing.

[0036] Specifically, the bearing at the end of the crankshaft 11 is connected to the inner wall of the mounting cylinder 9, providing support and positioning for the rotation of the crankshaft 11, so that the crankshaft 11 can rotate stably within the mounting cylinder 9, thereby ensuring that the extrusion cylinder 16 is driven by the connecting rod 15 to perform stable up-and-down reciprocating motion.

[0037] As a technical optimization of this utility model, the extrusion cylinder 16 has a cylindrical structure, and its outer wall is in contact with the inner wall of the mounting cylinder 9.

[0038] Specifically, the extrusion cylinder 16 has a cylindrical structure and its outer wall fits against the inner wall of the mounting cylinder 9. When the extrusion cylinder 16 moves up and down, it can ensure good sealing and prevent material from leaking from the gap between the extrusion cylinder 16 and the mounting cylinder 9, ensuring that the material can be effectively extruded by the extrusion cylinder 16.

[0039] Working principle: Material enters the mounting cylinder 9 through the feeding pipe 10. The servo motor 14 drives the drive gear 13 to rotate, which in turn drives the crankshaft 11 to rotate through meshing with the driven gear 12. The crankshaft 11, via the connecting rod 15, causes the extrusion cylinder 16 to reciprocate up and down within the mounting cylinder 9. When the extrusion cylinder 16 moves downward, the multiple pressure columns 17 inside it first contact the material under the action of the return spring 19. As the extrusion cylinder 16 continues to press down, if the material is hard, the pressure columns 17 will slide upward within the mounting cavity to compress the return spring 19 for buffering. When the extrusion cylinder 16 moves upward, the return spring 19 pushes the pressure columns 17 to return to their original position, achieving pre-extrusion of the material and making it more compact. The pre-extruded material enters the pressing cylinder 1 through the feed port 2. The drive motor 4 drives the conveyor shaft 7 to rotate, and the pressing blades 8 on the conveyor shaft 7 push the material to move within the pressing cylinder 1 for further pressing. The liquid in the material flows through the mesh plate 6 into the liquid collection box 5 to complete solid-liquid separation, while the solid material is discharged from the discharge port 3, achieving efficient pressing and filtration of the material.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency pressing and filtering machine device, comprising a pressing cylinder (1), wherein an upwardly extending feed inlet (2) is provided on the top wall of the pressing cylinder (1), and a downwardly extending discharge outlet (3) is provided on the bottom wall of the pressing cylinder (1), characterized in that: The pressing cylinder (1) is rotatably mounted with a conveying shaft (7), and pressing blades (8) are fixedly mounted on the conveying shaft (7). A drive motor (4) for driving the conveying shaft (7) to rotate is mounted on the end face of one end of the pressing cylinder (1). A mesh plate (6) is provided on the bottom wall of the pressing cylinder (1). A liquid collection box (5) corresponding to the mesh plate (6) is installed on the bottom wall of the pressing cylinder (1). An installation cylinder (9) is installed at the port of the feed inlet (2). A feeding pipe (10) is provided on the side wall of the installation cylinder (9). An extrusion cylinder (16) is slidably mounted inside the installation cylinder (9). A drive mechanism for driving the extrusion cylinder (16) to move up and down is provided inside the installation cylinder (9).

2. A high efficiency filter press apparatus as claimed in claim 1, wherein: The drive mechanism includes a crankshaft (11) rotatably mounted inside the mounting cylinder (9), and a connecting rod (15) rotatably mounted on the crankshaft (11). The bottom end of the connecting rod (15) is rotatably connected to the extrusion cylinder (16).

3. A high efficiency filter press apparatus as claimed in claim 2, wherein: The drive mechanism also includes a driven gear (12) mounted on the crankshaft (11), and a servo motor (14) is installed inside the mounting cylinder (9). The drive end of the servo motor (14) is connected to a drive gear (13), and the drive gear (13) meshes with the driven gear (12).

4. A high efficiency filter press apparatus as claimed in claim 1, wherein: The extrusion cylinder (16) has an installation cavity inside, and a pressure column (17) that slides along the axial direction of the extrusion cylinder (16) is provided inside the installation cavity. One end of the pressure column (17) extending into the installation cavity is connected to a limit plate (18), and the other end of the pressure column (17) extends to the bottom of the extrusion cylinder (16). A return spring (19) is sleeved on the part of the pressure column (17) located inside the installation cavity.

5. A high efficiency filter press apparatus as claimed in claim 4, wherein: One end of the reset spring (19) is connected to the limiting plate (18), and the other end of the reset spring (19) is connected to the inner wall of the mounting cavity. In the initial state, the limiting plate (18) is located in the middle of the mounting cavity.

6. A high efficiency filter press apparatus as claimed in claim 4, wherein: Multiple pressure columns (17) are provided, and the multiple pressure columns (17) are arranged in a circumferential array on the extrusion cylinder (16).

7. A high efficiency filter press apparatus as claimed in claim 2, wherein: The crankshaft (11) is provided with a bearing at its end, and the crankshaft (11) is connected to the inner wall of the mounting cylinder (9) through the bearing.

8. The high-efficiency pressing and filtering machine device as described in claim 1, characterized in that: The extrusion cylinder (16) has a cylindrical structure, and its outer wall is in contact with the inner wall of the mounting cylinder (9).

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