Magnetic separation roller for sorting and utilizing renewable resources

Abstract

The utility model discloses a magnetic separation roller for sorting and utilizing renewable resources, and relates to the technical field of magnetic separation rollers. Comprising a roller body and magnetic blocks arranged on the roller body. The magnetic blocks are fixedly adhered to the cylinder body, a resin inner layer is arranged between the magnetic blocks, the resin inner layer is not higher than the magnetic blocks, the magnetic blocks are sequentially wound and wrapped by carbon fibers, aramid silk threads, silk threads, films and other fiber forms, and a resin outer layer is arranged outside the cylinder body. The magnetic blocks are bonded and fixed, so that the mounting process is simplified, the blind area problem caused by screw holes is avoided, and the magnetic separation efficiency is remarkably improved; besides, a wrapping mode of combining the carbon fibers and the aramid fibers with the resin is adopted, so that the sealing performance and the structural strength of the magnetic block are enhanced, and the durability and the stability of the product are also effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic separation drums, in particular to a magnetic separation drum used for sorting and utilizing renewable resources. Background Art

[0002] Existing slag treatment technologies have exposed some urgent problems in practical applications. These technical shortcomings limit the potential of slag reuse and urgently require innovation and improvement.

[0003] Traditional magnetic separation drum technology has significant design limitations. The magnets are mounted on the drum by drilling holes and securing them with screws. This method is not only cumbersome to install, but the use of screws can easily damage the magnets and weaken their magnetic force. More importantly, the presence of screw holes creates blind spots in the magnetic separation process, which cannot be effectively utilized, resulting in wasted resources and reduced efficiency.

[0004] Traditional technology uses stainless steel cylinders as the outer wrapping material for the magnetic blocks. While this provides some protection, it also presents issues with large gaps and tolerances. These gaps not only affect the overall structural strength of the magnetic separation drum, but also make the magnetic blocks less airtight, making them susceptible to environmental influences, further reducing the magnetic separation effect. Utility Model Content

[0005] The purpose of the utility model is to overcome the above-mentioned defects and propose a magnetic separation drum for sorting and utilizing renewable resources, which has the characteristics of superior performance, high reliability and easy maintenance.

[0006] The specific technical solutions are as follows:

[0007] A magnetic separation drum for sorting and utilizing recycled resources comprises a drum body and magnetic blocks arranged on the drum body; the magnetic blocks are adhered to the drum body, an inner resin layer is provided between the magnetic blocks, and the inner resin layer is no higher than the height of the magnetic blocks; the outside of the magnetic blocks is wrapped with carbon fiber filaments and aramid fibers in sequence, and an outer resin layer is provided outside the drum body.

[0008] Furthermore, in the above solution, the carbon fiber filaments are wound and wrapped to form a carbon fiber filament layer, and the aramid fibers are wound and wrapped to form an aramid fiber layer.

[0009] Furthermore, in the above solution, a thread layer and a film layer are sequentially arranged outside the aramid fiber layer.

[0010] Furthermore, in the above solution, the resin outer layer is a cylindrical structure and is coaxially arranged with the cylinder.

[0011] Furthermore, in the above solution, the magnetic block is made of permanent magnetic material.

[0012] Furthermore, in the above solution, rollers are provided at both ends of the cylinder; annular bosses are provided at both ends of the cylinder body, and the magnetic block is located between the two annular bosses.

[0013] Furthermore, in the above solution, the inner resin layer is epoxy resin or modified epoxy resin.

[0014] In the above solution, the outer resin layer is phenolic resin.

[0015] Compared with the existing technology, the beneficial effects of the present invention are:

[0016] This utility model eliminates the use of screws and instead uses glue to secure the magnetic blocks. This not only simplifies the installation process but also avoids the blind spot problem caused by screw holes, significantly improving magnetic separation efficiency. Furthermore, the use of carbon fiber and aramid fiber combined with resin wrapping not only enhances the sealing and structural strength of the magnetic blocks but also effectively improves the durability and stability of the product. The use of aramid fiber, in particular, provides superior tensile strength and wear resistance compared to carbon fiber, making the magnetic separation drum quieter at high speeds and meeting the requirements for high-efficiency magnetic separation.

[0017] The utility model achieves the goals of high strength, high wear resistance, high sealing and high quietness through the comprehensive application of bonding technology, resin inner layer, winding and wrapping of carbon fiber filaments and aramid fibers, and resin outer layer, and is suitable for use in industrial applications such as slag recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a magnetic separation drum structure of the prior art;

[0019] Figure 2 This is a schematic diagram of the structure of the magnetic separation drum of the utility model.

[0020] In the accompanying drawings, 1-cylinder, 2-magnetic block, 3-carbon fiber layer, 4-aramid fiber layer, 5-resin outer layer, 6-screw, 7-annular boss, 8-roller. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the embodiments of the invention in conjunction with the accompanying drawings to make the objectives, technical solutions and technical effects of the invention more clearly presented.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figure 1 The figure shows a conventional magnetic separation drum. The magnetic block 2 is provided with a blind area for screw holes and connected to the drum via screws 6. A stainless steel tube is also enclosed to protect the magnetic block 2 and serve as the outer layer of the drum. However, this approach has significant drawbacks: stress concentration from the screws 6, gaps in the stainless steel tube wrapping, and large tolerances.

[0024] like Figure 2 As shown, a magnetic separation drum for recycling resource sorting and utilization according to the present invention comprises a drum body 1 and a magnetic block 2 arranged on the drum body. Roller shafts 8 are provided at both ends of the drum body 1; annular bosses 7 are provided at both ends of the drum body 1, and the magnetic block 2 is located between the two annular bosses 7. The magnetic blocks 2 are fixed to the drum body 1 by glue, and a resin inner layer is provided between the magnetic blocks 2; the resin inner layer is epoxy resin. The resin inner layer is no higher than the height of the magnetic block 2. The outer surface of the magnetic block 2 is wrapped with carbon fiber filaments to form a carbon fiber filament layer 3, and then wrapped with aramid fiber to form an aramid fiber layer 4, and finally coated with a resin outer layer 5, which is a phenolic resin. In order to enhance the effect of the above-mentioned winding and wrapping, a wire layer and a film layer can be sequentially arranged outside the aramid fiber layer 4. The wire layer can be made of glass fiber or polyester fiber to further provide high-strength winding; the film layer can be made of polytetrafluoroethylene film, etc. Polytetrafluoroethylene film has excellent corrosion resistance, high temperature resistance and non-stickiness. When used for the sorting and utilization of recycled resources, especially wet magnetic separation, it can provide the magnetic separation drum with required functions such as corrosion resistance and waterproofness.

[0025] The aramid fiber layer 4 and the resin outer layer 5 are cylindrical structures and are coaxially arranged on the cylinder 1. To ensure the coaxiality, the aramid fiber layer 4 can be cut by machining to ensure the accuracy requirement.

[0026] The magnetic block 2 is a permanent magnetic block 2 made of permanent magnetic material.

[0027] The core principle of the magnetic separation drum is to use the magnetic field generated by permanent magnetic materials to attract magnetic substances in the slag and achieve material separation. The magnetic block 2, as a key component for generating the magnetic field, is adhered to the barrel 1 to ensure the uniform distribution of the magnetic field. The setting of the resin inner layer not only protects the magnetic block 2 from direct wear, but also ensures the smoothness of the drum surface by being flush with the magnetic block 2, avoiding uneven accumulation of materials on the drum surface. The winding and wrapping of carbon fiber filaments and aramid fibers provides additional mechanical protection for the magnetic block 2 and enhances the stability of the overall structure. The setting of the resin outer layer 5 further enhances the wear resistance and chemical corrosion resistance of the barrel 1, allowing the magnetic separation drum to operate stably in harsh working environments.

[0028] The manufacturing steps of the above structure include: first, the magnetic blocks 2 are glued to the barrel of the cylinder 1 in a predetermined arrangement, and the spacing between the magnetic blocks 2 is ensured to be appropriate to form an effective magnetic field. Next, a resin inner layer material, such as epoxy resin or modified epoxy resin, is filled between the magnetic blocks 2 to ensure that the height of the resin inner layer does not exceed the height of the magnetic blocks 2. Then, the carbon fiber fibers are first used to wrap the magnetic blocks 2 in sequence according to the winding process; then, aramid fibers are used to further wrap the entire barrel in sequence according to the winding process to increase the mechanical strength and wear resistance of the magnetic blocks 2. Finally, the resin outer layer 5 material, such as phenolic resin, is evenly applied to the outside of the barrel 1. It should be ensured that the resin outer layer 5 is formed into a cylindrical structure and is coaxially arranged with the barrel 1 to ensure more stable high-speed rotation.

[0029] First, the magnets 2 are bonded to the barrel 1 using a special glue, rather than traditional screws. This bonding method avoids drilling holes in the magnets 2, reducing damage and stress concentration points, and improving their overall strength. Bonding provides more uniform stress distribution, reduces localized stress concentrations caused by screw holes, and extends the lifespan of the magnets 2. A resin inner layer is placed between the magnets 2 to provide additional support and protection. The resin inner layer is no taller than the magnets 2, ensuring uniform magnetic force distribution. Secondly, the resin inner layer prevents direct contact and wear between the magnets 2, while also providing insulation and shock absorption. Furthermore, the magnets 2 are wrapped with carbon fiber filaments and aramid fibers, providing additional structural strength and wear resistance. Both carbon fiber and aramid fibers are high-strength, lightweight, and corrosion-resistant. Carbon fiber filaments offer high strength and lightweight properties, increasing the mechanical stability and wear resistance of the magnets 2. Aramid fibers offer enhanced heat and chemical resistance, making them suitable for use in environments with high temperatures or corrosive substances, while also protecting the carbon fiber filaments. Finally, by providing an outer resin layer 5 on the outside of the barrel 1, additional protection and sealing are provided. The outer resin layer 5 can be a uniform coating or a multi-layer composite structure. The outer resin layer 5 prevents foreign matter from entering between the magnet block 2 and the barrel 1, extending the service life of the device. Secondly, it provides additional wear protection and reduces wear of the inner layer material.

[0030] In order to ensure the coaxiality of the resin outer layer 5 of the cylinder 1, the resin outer layer 5 can be finely processed by turning, which can wrap the carbon fiber filaments and aramid fibers while reducing vibration and noise caused by high-speed rotation.

[0031] Through the above-mentioned structural setting, the present invention can ensure the stable connection of the magnetic block 2 in equipment requiring high rotation speed, such as application scenarios of 4000 rpm and above, while significantly reducing noise and improving the comfort of the working environment.

[0032] The utility model can be used for magnetic separation rollers and equipment series applications for sorting and utilizing various renewable resources, and can meet the working requirements of different application scenarios.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the patent application of the present invention. Any equivalent changes, equivalent replacements or modified changes within the technical spirit and principles suggested by the present invention should be included in the scope of patent protection covered by the present invention.

Claims

1. A magnetic separation drum for separating and utilizing renewable resources, comprising a drum body and magnetic blocks disposed on the drum body; characterized in that: The magnetic blocks are adhered to the cylindrical body, and a resin inner layer is provided between the magnetic blocks. The resin inner layer is not higher than the height of the magnetic blocks. The outside of the magnetic blocks is wrapped with carbon fiber filaments and aramid fibers in sequence, and a resin outer layer is provided outside the cylindrical body; the carbon fiber filaments are wrapped to form a carbon fiber layer, and the aramid fibers are wrapped to form an aramid fiber layer; a silk thread layer and a film layer are provided outside the aramid fiber layer in sequence; the silk thread layer uses glass fiber filaments or polyester fiber filaments.

2. The magnetic separation drum for recycling resource separation and utilization according to claim 1, characterized in that: The resin outer layer is a cylindrical structure and is coaxially arranged with the cylinder.

3. The magnetic separation drum for recycling resource separation and utilization according to claim 1, characterized in that: The magnetic block is made of permanent magnetic material.

4. The magnetic separation drum for recycling resource separation and utilization according to claim 1, characterized in that: Roller shafts are provided at both ends of the cylinder; annular bosses are provided at both ends of the cylinder body, and the magnetic block is located between the two annular bosses.

5. The magnetic separation drum for recycling resource separation and utilization according to claim 1, characterized in that: The resin inner layer is epoxy resin or modified epoxy resin.

6. The magnetic separation drum for recycling resource separation and utilization according to claim 1, characterized in that: The outer resin layer is phenolic resin.

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