Device for easily and rapidly removing scrap iron in plastic particles

By installing a magnetic device consisting of a sleeve and reinforcing plates at the material discharge port of the hopper, the problem of the built-in magnetic frame in the hopper being difficult to remove and clean is solved, achieving convenient installation and efficient removal of iron filings.

CN224012747UActive Publication Date: 2026-03-20JIANGYIN ECOSENBOTTOM POLYMER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

The existing magnetic rack inside the hopper is difficult to remove, and it directly attracts iron filings, making it inconvenient to clean regularly, resulting in operational inconvenience and safety hazards.

Method used

Design a magnetic device that is installed at the feed inlet of a hopper using a housing consisting of a sleeve and a reinforcing plate. The sleeve's outer surface is used to attract iron filings, and the device can be easily installed and removed using a buckle and a handle. After the sleeve is separated from the magnet, it can be simply wiped clean.

Benefits of technology

It enables convenient installation and disassembly of the magnetic device, reduces the difficulty of operation, improves cleaning efficiency, avoids the safety hazards caused by climbing to retrieve it, and enhances the adsorption effect of iron filings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device for easily and quickly removing scrap iron in plastic particles, which comprises a shell consisting of a plurality of sleeves which are vertically arranged in a staggered manner, magnets are detachably arranged in the sleeves, reinforcing sheets are further arranged outside the sleeves, the shell and the reinforcing sheets can be made of magnetic conductive materials, and the shell and the reinforcing sheets transmit magnetic force of the magnets to adsorb the scrap iron. After the scrap iron is adsorbed to a certain amount, the magnet is pulled out of the sleeve, the scrap iron can be separated by simply wiping the outer wall of the sleeve, and inconvenience in removing the magnet pasted by the existing adhesive tape is avoided; the sleeve and the magnet can be installed at the discharging port of the stock bin, inconvenience and potential safety hazards caused by the fact that a magnetic device needs to be installed or disassembled in a climbing mode are further avoided, in addition, the reinforcing pieces are arranged to be thin iron bars, filamentous and flocculent materials formed in the charging barrel can be screened, and special-shaped materials are prevented from entering the next production process.
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Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, specifically to silos, and more specifically to a magnetic device installed at the discharge port of a silo for adsorbing and removing iron filings. Background Technology

[0002] A silo is typically a closed or semi-closed space used to store large quantities of polymer granules. This storage method helps ensure a continuous supply to the production line and avoids production interruptions due to material shortages. Silos also facilitate material management, material protection, and process automation. However, due to the production environment, iron filings may accumulate in the silo. These filings may originate from vibrations from nearby machining equipment, wear and tear on internal support frames and guide rails, or the raw materials themselves, which may have accumulated filings during previous processing, transportation, or storage. Considering the crucial function of the silo and the impact of raw materials on product processing, magnetic racks are usually installed inside to attract iron filings. However, cleaning the magnetic racks often requires climbing to the top of the silo or through an observation port, which is inconvenient. Furthermore, since magnetic racks are often integrated structures, iron filings are difficult to remove once attached to the magnetic rods, requiring the use of adhesive tape for separation, which is also inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a device for easily and quickly removing iron filings from plastic granules, solving the problems of existing technologies where the magnetic rack is located inside the hopper and is difficult to remove, and where the magnetic rack directly adsorbs iron filings, making it inconvenient to clean regularly.

[0004] To achieve the above objectives, the technical solution provided by this utility model is:

[0005] A device for easily and quickly removing iron filings from plastic granules includes a housing, which is composed of multiple parallel sleeves, and a magnet is detachably installed inside each sleeve.

[0006] Furthermore, the housing has at least two sets of sleeves, which are arranged alternately.

[0007] Furthermore, the sleeve is a cylinder, and the magnet is a cylindrical object.

[0008] Furthermore, a reinforcing plate is provided on the outside of the sleeve, which serves to fix multiple sleeves.

[0009] Furthermore, at least one end of the magnet is provided with a fixing plate, which connects multiple magnets by bolts.

[0010] Furthermore, the sleeve and magnet are arranged vertically, and the sleeve is connected as one unit by a reinforcing plate.

[0011] Furthermore, a handle is provided on the side of the fixing plate away from the sleeve.

[0012] Furthermore, the fixing plate extends to both sides to form locking blocks, and buckles adapted to the locking blocks are set outside the hopper to complete the locking of the magnetic device.

[0013] Furthermore, the reinforcing sheet is made of at least one of iron, cobalt, nickel, and their alloys.

[0014] Furthermore, the outer sleeve has a certain angle with the vertical direction, and the fixing plate and the magnet are connected by a chain.

[0015] Furthermore, the magnetic device is installed at the discharge port of the hopper.

[0016] The advantages and beneficial effects of this utility model are as follows:

[0017] 1. A magnetic device is provided, which is installed at the discharge port of the hopper by a snap-fit. It is easy to install and avoids the inconvenience and safety hazards to operators caused by conventional magnetic devices being placed inside the hopper and needing to be climbed to remove them during cleaning.

[0018] 2. The magnet of the magnetic device is isolated from the iron filings by the sleeve. The magnet transmits magnetic force through the sleeve to attract the iron filings to the outer surface of the sleeve. After the magnet is separated from the sleeve, the surface of the sleeve is no longer magnetic. The iron filings can be cleaned by simply wiping the outer surface of the sleeve, which reduces the difficulty of the work and improves the work efficiency.

[0019] 3. Secure multiple magnets together using the fixing plate, then pull the handle to remove all magnets.

[0020] 4. Reinforcing plates are installed on the outside of the sleeves. These plates not only improve the fixing effect between the sleeves but also prevent high-temperature particles from impacting the pipes and forming filamentous / flocculent deposits during pipeline transmission. When the reinforcing plates are made of magnetically conductive material, they can also transmit some magnetic force to attract iron filings.

[0021] 5. Adjust the orientation of the sleeve and magnet. With a fixed magnet length, this allows the material to pass through magnetic fields of varying lengths, resulting in better iron filings adsorption. Furthermore, it should be noted that magnets are typically stronger at both ends and weaker in the middle; this means that the adsorption of iron filings in the middle of the magnet can be further enhanced. Attached Figure Description

[0022] Figure 1 This is one of the structural schematic diagrams of Embodiment 1 of this utility model;

[0023] Figure 2 This is the second structural schematic diagram of this utility model;

[0024] Figure 3 This is a cross-sectional view of Embodiment 1 of the present invention along AA;

[0025] Figure 4 This is an installation diagram of Embodiment 1 of this utility model;

[0026] Figure 5 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0027] Figure 6 This is a cross-sectional structural schematic diagram of Embodiment 3 of this utility model;

[0028] Figure 7 This is a cross-sectional view of Embodiment 3 of the present invention along BB;

[0029] Figure 8 This is a structural schematic diagram of Embodiment 4 of this utility model;

[0030] Figure 9 This is a cross-sectional view of a sleeve in Embodiment 4 of this utility model;

[0031] In the picture:

[0032] 1-Sleeve, 2-Reinforcing plate, 3-Fixing plate, 4-Handle, 5-Clip block, 6-Snap buckle, 7-Bolt, 8-Hopper, 9-Discharge port, 10-Magnet, 11-Chain. Detailed Implementation

[0033] Ferrite is a ceramic material made by high-temperature sintering of iron oxide and other metal oxides (such as manganese, zinc, nickel, magnesium, etc.). It has good magnetic permeability. In addition, ferrite also has high mechanical strength and chemical stability, and can maintain its performance stability in harsh environments, making it a preferred material for the manufacture of this invention.

[0034] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model. Example 1

[0035] Please see Figures 1-4A device for quickly and easily removing iron filings from plastic granules includes a housing composed of multiple parallel sleeves 1. A magnet 10 is detachably installed inside each sleeve 1. The housing is made of a magnetically conductive material. Preferably, the sleeves 1 are cylindrical, and the magnets 10 are cylindrical objects adapted to fit the sleeves 1. Reinforcing plates 2, preferably thin strips, are also provided on the outside of the sleeves 1, serving to fix the multiple sleeves 1. A fixing plate 3 is also provided at one end of the magnet, connecting the multiple magnets 10 via bolts 7. A handle 4 is also provided on the side of the fixing plate 3 away from the sleeves 1. Locking blocks 5 extend from both sides of the fixing plate 3, and buckles 6 adapted to the locking blocks are provided outside the hopper 8 to lock the magnetic device. The reinforcing plates 2 can be made of a magnetically conductive material, which can be a magnetically conductive non-metallic material (such as ferrite) or a magnetically conductive metallic material (such as iron, cobalt, nickel, and their alloys). The magnetic device is horizontally positioned at the discharge port 9 of the hopper 8.

[0036] Working principle

[0037] Insert the magnet connected to the fixing plate into the sleeve of the outer shell, and set the entire magnetic device horizontally at the material inlet of the hopper, securing it with clips. When material flows in the hopper, it passes through the screen structure formed by the reinforcing plate and the sleeve. Since both the sleeve and the reinforcing plate are made of magnetically conductive material, they transmit magnetic force due to the presence of the magnet, attracting iron filings from the flowing material. When high-temperature particulate material in the hopper forms filamentous / flocculent material, it is blocked by the thin strip structure of the reinforcing plate, preventing irregularly shaped materials from continuing to transfer on the production line. After a certain period of operation, the iron filings adsorbed on the surface of the magnetic device reach a threshold. At this point, open the clips and pull the handle to remove the magnetic device. It is easy to understand that although this utility model does not have a special locking structure, the magnetic force between the magnet and the shell is sufficient to pull the shell out. Then, manually separate the magnet and the sleeve. At this point, the sleeve no longer has the magnetic force to attract iron filings. After a simple wipe, it can be reinstalled and used. The bolted connection between the magnet and the fixing plate also facilitates the replacement and maintenance of the magnet. Example 2

[0038] Please see Figure 5 Unlike Embodiment 1, this embodiment has two sets of parallel and staggered sleeves 1 and magnets 10. The parallel and staggered arrangement of sleeves 1 and magnets 10 improves the adsorption effect of iron filings. Specifically, the material needs to pass through a longer magnetic field path, and it can further adsorb iron filings that may leak between the sleeves compared to Embodiment 1. Example 3

[0039] Please see Figures 6-7Unlike Embodiment 1, in this embodiment, both the magnet and the sleeve are vertically arranged. The sleeve 1 is integrated with the reinforcing plate 2, and the fixing plate 3 seals the magnet 10 into the sleeve 1. However, the fixing plate 3 itself has a hollow shape consistent with the reinforcing plate to facilitate material flow. In this embodiment, the material flow requires passing through a longer magnetic field path than in Embodiments 1 and 2, resulting in the best adsorption effect for iron filings. In use, unlike Embodiment 1, this embodiment is inserted into the feed port 9 from bottom to top and secured using a snap fastener (not shown). To remove the device, pull the lower handle; to separate the device, use the upper handle 4. Example 4

[0040] Please see Figures 8-9 The difference from Embodiment 3 is that the bolt 7 is replaced by a chain 11, and the outer sleeve 1 and the upper and lower ends of the magnet 10 are misaligned to form a spiral structure. Compared with Embodiment 3, the side of the sleeve can also contact the material flow to adsorb iron filings. It is preferable to use a chain 11 to replace the bolt structure to avoid the spiral structure making it difficult to separate the magnet 10 from the sleeve 1. In addition, the magnet in this embodiment is shorter than the sleeve, so it does not need to be completely separated from the sleeve 1. Instead, the outside of the sleeve 1 is cleaned while it is being pulled out, so that the two ends of the magnet 10 slide inside the sleeve, and the middle part with weaker magnetic force is cleaned. In addition, the reinforcing plate 2 itself can achieve the technical effect of the handle 4 and the fixing plate 3.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for easily and quickly removing iron filings from plastic granules, characterized in that, The device includes a housing, which is composed of at least one set of multiple parallel sleeves, and a magnet is detachably disposed inside each sleeve. The housing has at least two sets of sleeves, which are staggered. Reinforcing plates are provided between the sleeves to connect the multiple sleeves into one unit. One end of the magnet is also connected to the multiple magnets into one unit by a fixing plate. A chain is provided between one end of the magnet and the fixing plate.

2. The device for easily and quickly removing iron filings from plastic granules according to claim 1, characterized in that, Reinforcing plates are provided between the sleeves.

3. The device for easily and quickly removing iron filings from plastic granules according to claim 1, characterized in that, A handle is also provided on the side of the fixing plate away from the sleeve.

4. The device for easily and quickly removing iron filings from plastic granules according to claim 1, characterized in that, There is also a hopper with a discharge port. The magnet and sleeve are installed at the discharge port of the hopper. The fixing plate extends into the two sides to form locking blocks. The hopper is equipped with buckles that are adapted to the locking blocks.