Double drum iron eliminator
By using a double-drum iron separator, the material and iron impurities are separated in a secondary manner by using permanent magnets in drum assemblies at different positions. This solves the problem of material loss in single-drum iron separators, improves processing efficiency, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHENFENG MECHANICAL ELECTRICAL EQUIP MFG CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-02
Smart Images

Figure CN224308604U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of material recycling technology, and in particular to a double-drum iron separator. Background Technology
[0002] A drum-type iron separator is a device that uses permanent magnets to separate iron impurities from materials. Its main working principle is as follows: when the material flows through the iron separator, within the effective range of the magnetic field strength of the permanent magnet, iron, nickel and other metal impurities are attracted by the magnetic blocks, while other materials continue to flow out from the discharge port, thus achieving the separation of materials from metal impurities.
[0003] For example, the applicant's earlier application for a drum-type iron separator (CN204093567U) uses a single-drum iron removal structure. Although it can separate materials from metal impurities, in actual applications, the metal impurities still contain materials, which will cause material loss. Therefore, secondary processing is required, which affects processing efficiency. Utility Model Content
[0004] The purpose of this application is to provide a double-drum iron separator that can greatly improve processing efficiency and reduce production costs.
[0005] To achieve the above objectives, this utility model provides a double-drum iron separator, including a housing, a drum assembly rotatably connected inside the housing, and a motor disposed outside the housing. The top of the housing has a feed inlet, and the bottom of the housing has a debris outlet and a material outlet. The motor is connected to the drum assembly, which has an outer cylinder and an inner cylinder. A permanent magnet is disposed on the surface of the inner cylinder. The drum assembly includes a first drum assembly and a second drum assembly. The first drum assembly is disposed below the feed inlet, and the second drum assembly is disposed above the debris outlet and the material outlet. The second drum assembly is disposed below the side of the first drum assembly and abuts against the first drum assembly. The surface of the first inner cylinder of the first drum assembly has a first permanent magnet, which covers the area from the top of the first inner cylinder in a counterclockwise direction to the point where the second drum assembly abuts against the first drum assembly. The surface of the second inner cylinder of the second drum assembly has a second permanent magnet, which covers the surface of the second inner cylinder located above the material outlet.
[0006] To facilitate material feeding, the feed inlet is equipped with a set of baffles that can guide the material.
[0007] In order to adapt to different types of materials and achieve material feeding guidance, an adjustable baffle is provided on one side of the first roller assembly. The adjustable baffle is rotatably connected to the inner wall of the machine casing, and an adjustable feeding channel is formed between the adjustable baffle and the first roller assembly.
[0008] To facilitate the rotation of the roller assembly, the motor is connected to the first roller assembly and the second roller assembly respectively via a sprocket set;
[0009] Preferably, both the first roller assembly and the second roller assembly rotate counterclockwise.
[0010] To prevent materials from sticking to the roller assembly, a ventilation opening is provided on one side of the housing.
[0011] In summary, this utility model has the following beneficial effects: the double-drum iron separator, through the cooperation of two specially designed drum assemblies, can achieve secondary separation. Compared with the previous single-drum structure, the removed iron is cleaner, with very little mixed debris and powder, reducing material loss and lowering production costs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the internal structure of the double-drum iron separator of this utility model;
[0013] Figure 2 This is a schematic diagram of the external structure of the double-drum iron separator of this utility model. Detailed Implementation
[0014] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0015] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0016] like Figure 1 , Figure 2 The double-drum iron separator shown includes a housing 1, a drum assembly rotatably connected inside the housing 1, and a motor 4 disposed outside the housing 1.
[0017] Specifically, the top of the housing 1 has a feed inlet 11, and a set of baffles 5 that can guide the material is provided inside the feed inlet 11. The baffles 5 are inclined so that the material can fall accurately onto the roller assembly below. The bottom of the housing 1 has a debris outlet 13 and a material outlet 12. The debris outlet 13 and the material outlet 12 are separated by two inverted V-shaped partitions 7. A ventilation port 8 is provided on one side of the housing 1, through which air can be blown into the housing 1. The motor 4 is fixed to the outer wall of the housing 1. The motor 4 is connected to the roller assembly through a sprocket set. The roller assembly has an outer cylinder and an inner cylinder. The surface of the inner cylinder is provided with a permanent magnet. The motor 4 can drive the outer cylinder to rotate. The inner cylinder is a fixed structure.
[0018] Specifically, the roller assembly includes a first roller assembly 2 and a second roller assembly 3. The first roller assembly 2 is correspondingly disposed below the feed inlet 11, and the second roller assembly 3 is correspondingly disposed above the debris outlet 13 and the material outlet 12. The second roller assembly 3 is also correspondingly disposed below the right side of the first roller assembly 2, and the second roller assembly 3 abuts against the first roller assembly 2. The surface of the first inner cylinder of the first roller assembly 2 has a first permanent magnet, which covers the area from the top of the first inner cylinder in a counterclockwise direction to the point where the second roller assembly 3 abuts against the first roller assembly 2 (i.e.,...). Figure 1 The shaded area of the first roller assembly 2 is the magnetic region, and the other areas are non-magnetic regions. The second inner cylinder surface of the second roller assembly 3 has a second permanent magnet, which covers the second inner cylinder surface located above the material outlet 12 (i.e., Figure 1 The left half of the shaded area of the second roller assembly 3 is the magnetic area, and the other areas are non-magnetic areas. At the same time, the center of the magnetic area and the non-magnetic area of the second roller assembly 3 is located at the boundary between the two partitions. The motor 4 can drive the first roller assembly 2 and the second roller assembly 3 to rotate counterclockwise through the sprocket set.
[0019] In addition, an adjustable baffle 6 is provided on one side of the first roller assembly 2. The top of the adjustable baffle 6 is rotatably connected to the inner wall of the housing 1. The center of the adjustable baffle 6 has a guide block, and the inner wall of the housing 1 has a guide plate. The adjustable baffle 6 swings along the guide plate through the guide block, so that the adjustable baffle 6 can move closer to or further away from the first roller assembly 2, thereby adjusting the width of the feeding channel between the adjustable baffle 6 and the first roller assembly 2, so as to adjust the feeding speed for different materials and ensure the subsequent separation effect.
[0020] During processing, the mixture to be separated first enters through the feed inlet 11. Guided by the two baffles 5, it falls to the left side of the top of the first roller assembly 2 and is attracted by the permanent magnet inside the first roller assembly 2. The motor 4 drives the first roller assembly 2 to rotate. Guided by the adjustable baffle 6, the mixture moves counterclockwise downwards. Since the material 9 itself is not magnetic, it falls directly and is sent out for collection by the material outlet 12. At the same time, the iron impurities 10 continue to rotate counterclockwise along the outer wall of the first roller assembly 2. When they move to the point where the first roller assembly 2 and the second roller assembly 3 meet... When the material comes into contact with the first roller assembly 2, the outer wall of the first roller assembly 2 is no longer magnetic, while the outer wall of the second roller assembly 3 is magnetic. Therefore, the iron impurity 10 is adsorbed on the outer wall of the second roller assembly 3. The iron impurity 10 continues to rotate counterclockwise along the outer wall of the second roller assembly 3. If the iron impurity 10 is mixed with material 9 at this time, the material 9 falls directly and is sent out for collection by the material outlet 12. When the iron impurity 10 is transported counterclockwise to the right side of the second roller assembly 3, the outer wall of the second roller assembly 3 is no longer magnetic, and the iron impurity 10 falls and is sent out for collection by the impurity outlet 13, thereby realizing the secondary separation of materials.
[0021] It should be noted that the parts not covered by this utility model are the same as or can be implemented using existing technology. For example, the internal structure of the roller assembly of this utility model is basically the same as the roller assembly in the roller-type iron separator (CN204093567U) applied for earlier by the applicant, except that the coverage range of the internal permanent magnet is different.
[0022] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape, principle and application direction of this application should be covered within the scope of protection of this application.
Claims
1. A double-drum type iron separator, comprising a housing, a drum assembly rotatably connected inside the housing, and a motor disposed outside the housing; the top of the housing has a feed inlet, and the bottom of the housing has a debris outlet and a material outlet; the motor is connected to the drum assembly; the drum assembly has an outer cylinder and an inner cylinder, and a permanent magnet is disposed on the surface of the inner cylinder; characterized in that: The roller assembly includes a first roller assembly and a second roller assembly. The first roller assembly is disposed below the feed inlet, and the second roller assembly is disposed above the debris outlet and the material outlet. The second roller assembly is disposed below the side of the first roller assembly and abuts against the first roller assembly. The first inner cylinder surface of the first roller assembly has a first permanent magnet, which covers the area from the top of the first inner cylinder in a counterclockwise direction to the abutment point of the second roller assembly and the first roller assembly. The second inner cylinder surface of the second roller assembly has a second permanent magnet, which covers the surface of the second inner cylinder located above the material outlet.
2. The double-drum iron separator according to claim 1, characterized in that: The feed inlet is equipped with a set of baffles that can guide the material.
3. The double-drum iron separator according to claim 1 or 2, characterized in that: An adjustable baffle is provided on one side of the first roller assembly. The adjustable baffle is rotatably connected to the inner wall of the machine housing, and an adjustable feeding channel is formed between the adjustable baffle and the first roller assembly.
4. The double-drum iron separator according to claim 1, characterized in that: The motor is connected to the first roller assembly and the second roller assembly respectively via a sprocket set.
5. The double-drum iron separator according to claim 4, characterized in that: Both the first roller assembly and the second roller assembly rotate counterclockwise.
6. The double-drum iron separator according to claim 1, characterized in that: A ventilation opening is provided on one side of the casing.