A new filtering device for metal sludge separation
By designing inner and outer cylindrical filtration devices, magnetic components, filter boxes, and water pump assemblies, the problems of low efficiency and clogging in traditional wet sludge treatment have been solved, achieving efficient separation and cleaning, and improving the precision and stability of metal sludge treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PENGRUI ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional wet sludge treatment methods are cumbersome and inefficient, making it difficult to effectively separate metal particles of different sizes and properties. Furthermore, sludge tends to adhere, causing filter pores to become clogged, which affects filtration efficiency and equipment lifespan.
Design a filtration device comprising inner and outer cylinders. The inner cylinder has sieve holes and magnetic components for initial separation, while the outer cylinder is equipped with a filter box and a water pump assembly for secondary filtration and cleaning. The device combines a frustum-shaped structure with airflow scouring to prevent adhesion.
It achieves simultaneous separation of magnetic and non-magnetic metals, improves filtration efficiency and metal recovery rate, avoids clogging, and extends equipment lifespan.
Smart Images

Figure CN224293496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal sludge separation technology, and in particular to a novel filtration device for metal sludge separation. Background Technology
[0002] Sludge is a solid sediment produced during water and wastewater treatment processes. Generally, sludge produced by wastewater treatment plants and waste disposal centers contains more or less heavy metals.
[0003] In the treatment of metal sludge, two methods are usually adopted: dry metal sludge treatment and wet metal sludge treatment. Traditional wet sludge treatment methods generally include drying first and then subsequent treatment. However, this method has certain cumbersome steps, is time-consuming and inefficient. Therefore, a new method of direct filtration and separation of metal-containing sludge has gradually emerged, which can significantly improve the treatment efficiency. For this filtration and separation method, we need to consider multiple aspects. For example, (1) Metal sludge contains both magnetic and non-magnetic materials; such as iron, cobalt, and nickel can be effectively separated under the action of a magnetic field, while non-magnetic metals such as aluminum, copper, and metal compounds need to be treated by other methods; (2) The size difference of different metal particles in metal sludge is large, so a single filtration step is difficult to effectively achieve complete separation of particles. In order to ensure that particles of different sizes can be effectively separated, multi-stage filtration steps need to be designed in the filtration process; (3) Metal sludge has strong adhesion, especially during the treatment process, metal particles in sludge may adhere inside the filter bucket, forming a hardened sludge layer. If the filter canister is not cleaned for a long time, the hardened sludge will not only reduce the filtration effect, but may also clog the filter holes, thus affecting the normal filtration and separation process. Utility Model Content
[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.
[0005] A novel filtration device for separating metal sludge includes a frame with a horizontal cylindrical body at the top. The horizontal cylindrical body includes an outer cylindrical body and an inner cylindrical body. An assembly space is provided between the outer cylindrical body and the inner cylindrical body. A feed hopper is connected to the right side of the outer cylindrical body, and a bearing for assembling the left side wall of the inner cylindrical body is provided on the left side wall of the outer cylindrical body. An opening is provided at the lower end of the outer cylindrical body. The feed hopper passes through the outer cylindrical body and is connected to the interior of the inner cylindrical body. A sieve hole is provided on the surface of the inner cylindrical body. A motor unit is provided at the lower end of the right side wall of the outer cylindrical body. The drive shaft of the motor unit extends through the outer cylindrical body to the lower part of the internal assembly space, and a drive gear is provided at the end of the drive shaft. A moving gear that meshes with the drive gear is provided on the outer surface of the inner cylindrical body. A transverse column is provided along the inner side of the left side wall of the inner cylindrical body, and a magnetic suction element is covered inside the column.
[0006] Furthermore, the inner cylinder is designed as a frustum shape, and the diameter of the side facing the feed hopper is larger than the diameter of the side away from the feed hopper.
[0007] Furthermore, a filter box is assembled at the lower end of the opening. The filter box is concave in shape and has filter holes at the bottom. Mounting blocks are provided on both sides of the filter box, and the mounting blocks are fixed to the outer cylinder with screws.
[0008] Furthermore, a sludge collection box is provided at the lower end of the filter box.
[0009] Furthermore, the outer cylinder has two sets of transverse columns inside, which are located above the inner cylinder and are symmetrical about the front and rear sides relative to the outer cylinder axis. The interior of the transverse columns is hollow, and the lower end of the transverse columns has a row of water outlet holes. Inlet holes are provided on the left side of one set of transverse columns and the right side of the other set of transverse columns.
[0010] Furthermore, a water pump is installed on the upper exterior of the outer cylinder, and a water pipe is connected between the water pump and the inlet.
[0011] Furthermore, an openable door is provided on the right side of the inner cylinder.
[0012] The beneficial effects of this utility model are:
[0013] (1) The screen holes on the inner cylinder achieve internal coarse filtration, and the magnetic metal material is first filtered through the horizontal magnetic suction piece inside the inner cylinder.
[0014] (2) The filter box assembled on the outer cylinder can be used as a secondary filter to further separate fine metal substances;
[0015] (3) Through the water pump assembly and the rotatable movement of the inner cylinder, the inner cylinder can be cleaned simultaneously during the metal sludge separation and filtration process to prevent the sludge from accumulating and hardening in the inner cylinder for a long time, which would affect the filtration effect and service life.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a top view of the horizontal column installed above the assembly space.
[0019] The attached diagrams are labeled as follows: Frame-1, Horizontal Cylinder-2, Outer Cylinder-3, Inner Cylinder-4, Assembly Space-5, Feed Hopper-6, Bearing-7, Opening-8, Screen Hole-9, Motor Unit-10, Drive Gear-11, Moving Gear-12, Column-13, Magnetic Attachment-14, Filter Box-15, Filter Hole-16, Mounting Block-17, Sludge Collection Box-18, Horizontal Column-19, Water Outlet-20, Inlet-21, Water Pump-22, Water Pipe-23. Detailed Implementation
[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] Please see Figures 1-2 This utility model discloses a novel filtration device for separating metal sludge, comprising a frame 1, with a horizontal cylindrical body 2 at the upper end of the frame 1. The horizontal cylindrical body 2 includes an outer cylindrical body 3 and an inner cylindrical body 4. An assembly space 5 is provided between the outer cylindrical body 3 and the inner cylindrical body 4. A feed hopper 6 is connected to the right side of the outer cylindrical body 3, and a bearing 7 for assembling the left side wall of the inner cylindrical body 4 is provided on the left side wall of the outer cylindrical body 3. An opening 8 is provided at the lower end of the outer cylindrical body 3. The feed hopper 6 passes through the outer cylindrical body 3 and communicates with the interior of the inner cylindrical body 4. A sieve hole 9 is provided on the surface of the inner cylindrical body 4. A motor unit 10 is provided at the lower end of the right side wall of the outer cylindrical body 3. The drive shaft of the motor unit 10 extends through the outer cylindrical body 3 to the lower part of the internal assembly space 5, and a drive gear 11 is provided at the end of the drive shaft of the motor unit 10. A moving gear 12 that meshes with the drive gear 11 is provided on the outer surface of the inner cylindrical body 4. A transverse column 13 is provided along the inner side wall of the inner cylindrical body 4, and a magnetic suction element 14 is covered inside the column 13.
[0022] First, the frame 1, as the basic support structure, provides stability and load-bearing capacity for the entire device. It is mainly used to support the horizontal cylinder 2, the motor unit 10 on the horizontal cylinder 2, and other components, ensuring that each component can operate stably during operation.
[0023] The horizontal cylinder 2 mainly consists of an outer cylinder 3 and an inner cylinder 4, forming two layers. The inner cylinder 4 has a sieve hole 9 on its surface. The outer cylinder 3 is designed with a feed hopper 6 connected to one side. The feed hopper 6 is connected to the inner cavity of the inner cylinder 4 to allow the metal sludge to enter.
[0024] A set of bearings 7 is installed on the left side wall of the outer cylinder 3 to support the left side wall of the inner cylinder 4. A motor assembly 10 is installed at the lower end of the right side wall of the outer cylinder 3. The motor assembly 10 is connected via a drive shaft that passes through the outer cylinder 3 and extends below the internal assembly space 5. A drive gear 11 is installed at the end of the drive shaft, which meshes with a moving gear 12 on the outer surface of the inner cylinder 4. Driven by the motor assembly 10, the meshing of the moving gear 12 and the drive gear 11 enables the inner cylinder 4 to achieve precise lateral movement under the support of the bearings 7.
[0025] During rotation, the incoming metal sludge undergoes preliminary screening through the sieve holes 9. Larger metal particles are screened and aggregated in the inner cylinder 4, while smaller sludge and metal particles flow out through the opening 8 at the bottom of the inner cylinder 4 under their own gravity, thus completing the initial separation. Simultaneously, this technology also features the ability to simultaneously separate magnetic and non-magnetic metals during the screening process. The principle is as follows: a transverse column 19 is located on the left side wall of the inner cylinder 4, and the surface of the column 19 is covered with a magnetic adsorption component. After the metal sludge enters the inner cylinder 4, the magnetic metal material is effectively adsorbed onto the surface of the column 19 under the magnetic attraction of the column 19, thereby achieving the separation of magnetic and non-magnetic metals. This design not only improves the recovery rate of metal materials but also enhances the efficiency of the filtration process, making the treatment of metal sludge more efficient and refined.
[0026] Because metallic sludge has a certain degree of fluidity, the cylinder is designed with a frustum shape to effectively guide its flow and avoid clogging. Specifically, the diameter of the side of the cylinder closer to the feed hopper 6 is larger, while the diameter of the side farther from the feed hopper 6 is smaller. This tapering design allows the metallic sludge to flow smoothly downwards after entering the cylinder, preventing accumulation and clogging at the feed hopper 6. Furthermore, the frustum shape not only improves the fluidity of the metallic sludge but also ensures the stability of the feeding process, reducing downtime caused by clogging and improving the overall efficiency of the filtration system.
[0027] A filter box 15 is assembled at the lower end of the opening 8. The filter box 15 has a concave design and multiple filter holes 16 at the bottom to ensure that the metal sludge can undergo effective secondary filtration before flowing into the sludge collection tank 18. Mounting blocks 17 are provided on both sides of the filter box 15. The mounting blocks 17 are firmly fixed to the outer cylinder 3 with screws to ensure that the filter box 15 remains stable throughout the operation. The opening 8 can also be opened through the mounting blocks 17 to process the interior of the outer cylinder 3 or to process finer metal substances remaining in the filter box 15. After the first stage of coarse filtration, the metal sludge enters the filter box 15 and is effectively separated from the sludge by the bottom filter holes 16, reducing the impact of residues on subsequent treatment. Furthermore, this secondary filtration design, combined with the filter box 15 and the sludge collection tank 18, not only improves the recovery rate of the metal sludge but also avoids potential clogging during the filtration process.
[0028] To prevent metallic sludge from adhering to the inner cylinder 4 wall during rotation, two sets of transverse columns 19 are designed inside the outer cylinder 3. These two sets of transverse columns 19 are located above the inner cylinder 4 and symmetrically distributed along the front and rear sides of the outer cylinder 3, situated on either side of the outer cylinder 3's axis. Each set of transverse columns 19 has a hollow interior to ensure smooth airflow. To further prevent sludge adhesion and accumulation, neatly arranged water outlets 20 are provided at the lower end of the transverse columns 19. These water outlets 20 generate airflow during the rotation of the inner cylinder 4, helping to flush away the metallic sludge on the cylinder wall, reducing the contact area between the sludge and the cylinder wall, and thus effectively reducing the risk of adhesion. In addition, inlet holes 21 are provided on the left side of one set of transverse columns 19 and the right side of the other set of transverse columns 19. These inlets 21 are connected to an external water pump 22 via water pipes 23. The water pump 22 delivers water to the inlets 21 of the transverse column 19 through the pipes, thereby continuously supplying water to the interior of the column 13 during rotation. This water flow effectively washes away impurities adhering to the inner wall of the column 13, while ensuring the continuity of airflow inside the transverse column 19, further improving the separation efficiency of metal sludge and the overall cleaning effect of the equipment.
[0029] 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 way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.
Claims
1. A novel filtration device for separating metal sludge, characterized in that: Includes a frame (1), with a horizontal cylindrical body (2) at the upper end of the frame (1), the horizontal cylindrical body (2) including an outer cylindrical body (3) and an inner cylindrical body (4); an assembly space (5) is left between the outer cylindrical body (3) and the inner cylindrical body (4); The outer cylinder (3) is connected to the right side of the feed hopper (6), and the left side wall of the outer cylinder (3) is provided with a bearing (7) for assembling the left side wall of the inner cylinder (4). The lower end of the outer cylinder (3) is provided with an opening (8). The feed hopper (6) passes through the outer cylinder (3) and is connected to the interior of the inner cylinder (4). The surface of the inner cylinder (4) is provided with sieve holes (9). A motor unit (10) is provided at the lower end of the right side wall of the outer cylinder (3). The drive shaft of the motor unit (10) extends through the outer cylinder (3) to the lower part of the internal assembly space (5). A drive gear (11) is provided at the end of the drive shaft of the motor unit (10). A moving gear (12) that meshes with the drive gear (11) is provided on the outer surface of the inner cylinder (4). A horizontal column (13) is provided on the left side wall of the inner cylinder (4), and a magnetic accumulator (14) is covered inside the column (13).
2. A novel filtration device for separating metal sludge according to claim 1, characterized in that: The inner cylinder (4) is designed as a frustum shape, and the side diameter of the side facing the feed hopper (6) is larger than the side diameter of the side away from the feed hopper (6).
3. A novel filtration device for separating metal sludge according to claim 1, characterized in that: A filter box (15) is assembled at the lower end of the opening (8). The filter box (15) is concave in shape and has a filter hole (16) at the bottom. Mounting blocks (17) are provided on both sides of the filter box (15). The mounting blocks (17) are fixed to the outer cylinder (3) by screws.
4. A novel filtration device for separating metal sludge according to claim 1, characterized in that: The filter box (15) is equipped with a sludge collection box (18) at the lower end.
5. A novel filtration device for separating metal sludge according to claim 1, characterized in that: The outer cylinder (3) has two sets of transverse columns (19) inside. The two sets of transverse columns (19) are located above the inner cylinder (4) and are symmetrical about the outer cylinder (3) on the front and rear sides respectively. The interior of the transverse column (19) is hollow. The lower end of the transverse column (19) is provided with a row of water outlet holes (20). Inlet holes (21) are provided on the left side of one set of transverse columns (19) and the right side of the other set of transverse columns (19).
6. A novel filtration device for separating metal sludge according to claim 1, characterized in that: A water pump (22) is provided on the upper exterior of the outer cylinder (3), and a water pipe (23) is connected between the water pump (22) and the inlet (21).