Three-phase horizontal screw centrifuge for efficient separation of materials
By setting multiple equally spaced annular discharge ports and gradually expanding transition pipes on the feed pipe, combined with the staggered disc design, the problem of uneven material dispersion caused by a single feed pipe is solved, achieving a more efficient solid-liquid separation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU DONGBANG MASCH CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-06-26
AI Technical Summary
The existing three-phase horizontal screw centrifuge has a single feed pipe, which results in poor material dispersion and affects the solid-liquid separation effect.
Multiple equally spaced annular discharge ports are opened on the feed pipe, and combined with the gradually expanding transition pipe and the staggered disc design, the material enters the screw feeder in a diffusion manner to ensure uniform distribution.
It improves the solid-liquid separation effect of materials. By using a diffusion feeding method, it enhances the diffusion range and uniformity of materials in the screw feeder, thereby improving the solid-liquid separation efficiency.
Smart Images
Figure CN224405376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of horizontal screw centrifuge technology, and in particular to a three-phase horizontal screw centrifuge for efficient material separation. Background Technology
[0002] The three-phase horizontal decanter centrifuge is a powerful solid-liquid separation device widely used in industries such as chemical, light industry, pharmaceutical, food, papermaking, and mining. The three-phase horizontal decanter centrifuge utilizes the high-speed rotation of its rotating bodies (drum and screw) to generate acceleration thousands of times greater than gravity, causing materials entering the rotating body through the feed inlet to quickly separate into solid and liquid phases. A differential gear creates a relative velocity between the drum and screw, pushing the solids out from the solid phase end of the centrifuge, while the liquid flows out from the liquid phase end, achieving solid-liquid separation.
[0003] Currently, the feed pipe of a three-phase horizontal screw centrifuge is only a single pipe. When feeding, the material flows into the interior of the screw feeder in a columnar shape. Since the material is fed through only a single pipe, the dispersion effect of the material is not good, which will affect the solid-liquid separation effect of the material. Utility Model Content
[0004] In response to the shortcomings of the existing production technology, the applicant provides a three-phase horizontal screw centrifuge for efficient material separation. By improving the structure of the three-phase horizontal screw centrifuge, the solid-liquid separation effect of the material can be improved.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A three-phase horizontal screw centrifuge for efficient material separation includes: a shell, a rotating drum, a screw feeder, and a feed pipe. The rotating drum is located inside the shell and is rotatably connected to the shell. The screw feeder is located inside the rotating drum and is rotatably connected to the rotating drum. The feed pipe is located inside the screw feeder, and one end of the feed pipe extends to the outside of the shell. The other end of the feed pipe is provided with a disc. The disc has multiple discharge ports circumferentially arranged. The feed pipe is connected to the discharge ports, and the multiple discharge ports are distributed in a ring at equal intervals.
[0007] Therefore, by opening multiple equally spaced annularly distributed discharge ports in the feed pipe, compared with the existing single feed pipe column feed method, this method has a simple structure and is easy to operate. Through multiple discharge ports, the material enters the screw conveyor in a diffusion manner, so as to be evenly distributed in various positions of the screw conveyor, thereby improving the solid-liquid separation effect of the material.
[0008] As a further improvement to the above technical solution: a transition pipe is provided at the other end of the feed pipe, and the disc is mounted on the outer circumferential surface of the transition pipe. The transition pipe is arranged in a gradually expanding manner along the material feeding direction. Thus, the gradually expanding transition pipe allows the material to quickly diffuse to the port of each disc, thereby further improving the solid-liquid separation effect.
[0009] As a further improvement to the above technical solution: multiple discs are provided, and the multiple discs are distributed at equal intervals along the material feeding direction. Therefore, by using a multiple disc design, the diffusion range of the material in the axial direction of the screw feeder is expanded, thereby further improving the solid-liquid separation effect of the material.
[0010] As a further improvement to the above technical solution: the discharge ports of two adjacent discs are staggered; the outlet ends of the discharge ports on each disc are on the same outer circumferential surface. Thus, the staggered distribution of discharge ports increases the diffusion range of the material in the circumferential direction of the screw conveyor, thereby further improving the solid-liquid separation effect; the outlet ends of the discharge ports on each disc are on the same outer circumferential surface, ensuring that the distance between the outlet end of each discharge port and the inner wall of the screw conveyor remains consistent, thereby ensuring that the diffusion effect of the material exiting each discharge port within the screw conveyor is consistent.
[0011] As a further improvement to the above technical solution, it also includes a solid outlet end and a liquid outlet end. The solid outlet end is installed on the side of the drum near the feed pipe, and the liquid outlet end is installed on the side of the drum away from the feed pipe. Thus, the solid separated from the liquid is discharged through the solid outlet end, and the liquid separated from the solid is discharged through the liquid outlet end.
[0012] As a further improvement to the above technical solution, it also includes: a motor, a coupling, and a differential. The motor, the coupling, and the differential are located on the side of the housing away from the feed pipe. The drive end of the motor is connected to the coupling, and the two ends of the differential are respectively connected to the coupling and the drum.
[0013] As a further improvement to the above technical solution, it also includes: a base, wherein the housing and the motor are both connected to the base.
[0014] The beneficial effects of this utility model are as follows:
[0015] By opening multiple equally spaced annularly distributed discharge ports in the feed pipe, compared with the existing single feed pipe column feed method, this method has a simple structure and is easy to operate. Through multiple discharge ports, the material enters the screw conveyor in a diffusion manner, so as to be evenly distributed in various positions of the screw conveyor, thereby improving the solid-liquid separation effect of the material.
[0016] This utility model also has the following advantages:
[0017] 1. This utility model uses a gradually expanding transition tube to allow the material to quickly diffuse to the port of each disc. The design of multiple discs expands the diffusion range of the material in the axial direction of the screw feeder. The staggered distribution of the discharge ports increases the diffusion range of the material in the circumferential direction of the screw feeder, thereby further improving the solid-liquid separation effect of the material.
[0018] 2. In this invention, the outlet end of each disc discharge port is on the same outer circumferential surface, so that the distance between the outlet end of each discharge port and the inner wall of the screw feeder is consistent. This ensures that the diffusion effect of the material exiting each discharge port in the screw feeder is consistent. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the three-phase horizontal screw centrifuge for efficient material separation according to this utility model.
[0020] Figure 2 This is a cross-sectional view of the housing of this utility model;
[0021] Figure 3 This is a schematic diagram of the feed pipe of this utility model;
[0022] Figure 4 This is an axial sectional view of the feed pipe of this utility model;
[0023] Figure 5 This is a radial sectional view of the disk and transition tube of this utility model.
[0024] Among them: 1. Shell;
[0025] 2. Rotating drum;
[0026] 3. Screw feeder;
[0027] 4. Feed pipe;
[0028] 401. Disc; 402. Discharge port; 403. Transition pipe;
[0029] 5. Solid outlet end;
[0030] 6. Liquid outlet end;
[0031] 7. Electric motor;
[0032] 8. Couplings;
[0033] 9. Differential;
[0034] 10. Base. Detailed Implementation
[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0036] like Figures 1 to 5 The figure shown is the preferred embodiment of the present invention. The three-phase horizontal screw centrifuge for efficient material separation in this embodiment includes: a shell 1, a rotating drum 2, a screw feeder 3, and a feed pipe 4. The rotating drum 2 is located inside the shell 1 and is rotatably connected to the shell 1. The screw feeder 3 is located inside the rotating drum 2 and is rotatably connected to the rotating drum 2. The feed pipe 4 is located inside the screw feeder 3, and one end of the feed pipe 4 extends to the outside of the shell 1. The other end of the feed pipe 4 is provided with a disc 401. The disc 401 has multiple discharge ports 402 circumferentially opened. The feed pipe 4 is connected to the discharge ports 402. The multiple discharge ports 402 are distributed in a ring with equal spacing. Therefore, by opening multiple equally spaced annularly distributed discharge ports 402 in the feed pipe 4, compared with the existing columnar feeding method of a single feed pipe 4, this method has a simple structure and is easy to operate. Through multiple discharge ports 402, the material enters the screw pusher 3 in a diffusion manner, so as to be evenly distributed in various positions of the screw pusher 3, thereby improving the solid-liquid separation effect of the material.
[0037] In other words, the diffusion-type feeding method with multiple discharge ports 402 can divide large pieces of material into several smaller pieces, which then enter the screw conveyor 3 from the multiple discharge ports 402 respectively (the material enters the screw conveyor 3 radially). In contrast, with the existing single-pipe column method, the material can only enter the screw conveyor 3 completely from the axial direction of the feed pipe 4. On the one hand, dividing large pieces of material into several smaller pieces is easier to diffuse than whole large pieces. On the other hand, radial entry allows the material to reach the inner wall of the screw conveyor 3 faster than axial entry. Thus, the material can be evenly distributed at various positions of the screw conveyor 3, thereby improving the solid-liquid separation effect.
[0038] In this embodiment, a transition pipe 403 is provided at the other end of the feed pipe 4, and a disc 401 is installed on the outer circumferential surface of the transition pipe 403. The transition pipe 403 is arranged in a gradually expanding manner along the material feeding direction. Multiple discs 401 are provided, and the multiple discs 401 are distributed at equal intervals along the material feeding direction. The discharge ports 402 of adjacent discs 401 are staggered. The outlet end of the discharge port 402 on each disc 401 is on the same outer circumferential surface. Therefore, the gradually expanding transition tube 403 allows the material to quickly diffuse to the port of each disc 401, thereby further improving the solid-liquid separation effect. The design of multiple discs 401 expands the diffusion range of the material in the axial direction of the screw feeder 3, thereby further improving the solid-liquid separation effect. The staggered discharge ports 402 increase the diffusion range of the material in the circumferential direction of the screw feeder 3, thereby further improving the solid-liquid separation effect. The outlet ends of the discharge ports 402 of each disc 401 are on the same outer circumferential surface, so that the distance between the outlet end of each discharge port 402 and the inner wall of the screw feeder 3 is consistent, thus ensuring that the diffusion effect of the material exiting each discharge port 402 within the screw feeder 3 is consistent.
[0039] Specifically, such as Figure 4 As shown, the transition pipe 403 is arranged in a gradually expanding manner along the material feeding direction, which means that the radius of the transition pipe 403 gradually increases along the material feeding direction.
[0040] In this embodiment, the system further includes a solid outlet end 5 and a liquid outlet end 6. The solid outlet end 5 is installed on the side of the drum 2 closest to the feed pipe 4, and the liquid outlet end 6 is installed on the side of the drum 2 furthest from the feed pipe 4. Thus, the solid separated by solid-liquid separation is discharged through the solid outlet end 5, and the liquid separated by solid-liquid separation is discharged through the liquid outlet end 6.
[0041] In this embodiment, it also includes: a motor 7, a coupling 8, and a differential 9. The motor 7, the coupling 8, and the differential 9 are located on the side of the housing 1 away from the feed pipe 4. The drive end of the motor 7 is connected to the coupling 8, and the two ends of the differential 9 are respectively connected to the coupling 8 and the drum 2.
[0042] In this embodiment, it also includes: a base 10, and the housing 1 and the motor 7 are all connected to the base 10.
[0043] The working process of this utility model three-phase horizontal screw centrifuge is as follows: First, the material to be separated into solid and liquid is injected into the screw feeder 3 through the feed pipe 4. The material enters the screw feeder 3 in a diffusion manner through multiple discharge ports 402. Finally, the motor 7 is started, and with the cooperation of the coupling 8 and the differential 9, the drum 2 and the screw feeder 3 rotate to achieve solid-liquid separation of the material. The solid after solid-liquid separation is discharged through the solid outlet end 5, and the liquid after solid-liquid separation is discharged through the liquid outlet end 6.
[0044] In summary, this utility model, by providing multiple equally spaced annularly distributed discharge ports 402 in the feed pipe 4, offers a simpler structure and is easier to operate compared to the existing columnar feeding method using a single feed pipe 4. The multiple discharge ports 402 allow the material to enter the screw conveyor 3 in a diffused manner, ensuring even distribution at various positions within the screw conveyor 3, thereby improving the solid-liquid separation effect of the material.
[0045] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.
Claims
1. A three-phase horizontal screw centrifuge for efficient material separation, characterized in that, include: Shell (1), and A rotating drum (2) is located inside the housing (1) and is rotatably connected to the housing (1); A spiral feeder (3) is located inside the rotating drum (2) and is rotatably connected to the rotating drum (2); The feed pipe (4) is located inside the screw feeder (3), and one end of the feed pipe (4) extends to the outside of the housing (1). The other end of the feed pipe (4) is provided with a disc (401). The disc (401) has multiple discharge ports (402) circumferentially opened. The feed pipe (4) is connected to the discharge ports (402). The multiple discharge ports (402) are distributed in a ring with equal spacing.
2. The three-phase horizontal screw centrifuge for efficient material separation as described in claim 1, characterized in that: The other end of the feed pipe (4) is provided with a transition pipe (403), and the disc (401) is installed on the outer circumferential surface of the transition pipe (403). The transition pipe (403) is arranged in a gradually expanding manner along the material feeding direction.
3. The three-phase horizontal screw centrifuge for efficient material separation as described in claim 1, characterized in that: Multiple disks (401) are provided, and the multiple disks (401) are distributed at equal intervals along the material feeding direction.
4. The three-phase horizontal screw centrifuge for efficient material separation as described in claim 3, characterized in that: The discharge ports (402) of two adjacent discs (401) are staggered; The outlet ends of the discharge ports (402) on each of the disks (401) are on the same outer peripheral surface.
5. The three-phase horizontal screw centrifuge for efficient material separation as described in claim 1, characterized in that: Also includes: Solid outlet end (5) and liquid outlet end (6), the solid outlet end (5) is installed on the side of the drum (2) close to the feed pipe (4), and the liquid outlet end (6) is installed on the side of the drum (2) away from the feed pipe (4).
6. The three-phase horizontal screw centrifuge for efficient material separation as described in claim 1, characterized in that: Also includes: The motor (7), coupling (8) and differential (9) are located on the side of the housing (1) away from the feed pipe (4). The drive end of the motor (7) is connected to the coupling (8), and the two ends of the differential (9) are connected to the coupling (8) and the drum (2) respectively.
7. The three-phase horizontal screw centrifuge for efficient material separation as described in claim 6, characterized in that: Also includes: The base (10), the housing (1), and the motor (7) are all connected to the base (10).