Closed anti-corrosion filtering device based on magnetic attraction

By employing a magnetic design and a sealed, corrosion-resistant filter made of stainless steel, the problem of clogging by ferromagnetic impurities and the difficulty in clearing corrosive materials is solved, achieving efficient impurity removal and corrosion prevention, and ensuring the reliability and applicability of the equipment.

CN120920189APending Publication Date: 2025-11-11SHENGZHOU WEIZHONG MAGNETIC IND CO LTD
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Patent Information

Application Number
CN202511233800.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

Existing ferromagnetic filtration equipment is prone to clogging of the filter screen due to ferromagnetic impurities, and the unclogging operation is inconvenient when filtering corrosive materials, which affects the normal use of the equipment.

Method used

Adopting a magnetic design, the slide and magnetic rod slide inside the feed tube, adsorbing impurities through magnetism and removing them by gravity. Combined with a sealed structure made of stainless steel, it achieves non-contact impurity removal and corrosion prevention.

Benefits of technology

It improves the cleaning efficiency and filtration reliability of ferromagnetic impurities, ensures the sealing and corrosion resistance of the equipment, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The closed anti-corrosion filtering device comprises a material conveying pipe and a material falling chamber, a material falling pipe is arranged below the material falling chamber, and a first sliding frame and a second sliding frame which are located above the material falling pipe are arranged in the material falling chamber in a sliding mode; the first sliding frame is provided with a partition plate for sealing the conveying pipe and a sleeve which penetrates through the partition plate and extends into the conveying pipe, and the second sliding frame is provided with a magnetic bar arranged in the sleeve in a sleeved mode. Ferromagnetic impurities on materials are magnetically attracted to the sleeve through the magnetism of the magnetic bar, when the ferromagnetic impurities magnetically attracted to the sleeve need to be removed, the first sliding frame and the second sliding frame are driven to slide so as to drive the ferromagnetic impurities on the sleeve to move to the position above the discharging pipe, the second sliding frame further slides so that the magnetic bar can move to be away from the position above the discharging pipe, and therefore the magnetic bar can be removed. Furthermore, the ferromagnetic impurities on the sleeve can fall into the blanking pipe to be removed under the action of gravity, so that the cleaning efficiency of the ferromagnetic impurities and the filtering reliability are greatly improved, and the impurity removal effect of the materials is ensured.
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Description

Technical Field

[0001] This invention relates to the field of impurity filtration equipment technology, and in particular to a closed-type corrosion-resistant filtration device based on magnetic attraction. Background Technology

[0002] In modern industrial production, ferromagnetic filtration equipment plays a crucial role. For example, in chemical production, if the raw materials contain a large amount of ferromagnetic impurities such as iron filings and iron powder, these impurities will not only affect the quality of the product but also easily damage the operation of the production equipment. Therefore, ferromagnetic filtration equipment is needed in the chemical production process to reduce the content of ferromagnetic impurities, thereby providing quality assurance for equipment production.

[0003] However, most existing ferromagnetic filtration equipment requires the use of filter screens and other filtration components to remove ferromagnetic impurities. During the filtration process, ferromagnetic impurities can easily clog the filter screen pores, requiring manual unclogging. This makes the use of ferromagnetic filtration equipment inconvenient. Furthermore, ferromagnetic filtration equipment sometimes needs to filter materials with a certain degree of corrosiveness, which makes the unclogging of the filter screen even more inconvenient and greatly limits the normal use of ferromagnetic filtration equipment. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a closed-loop anti-corrosion filtration device based on magnetic attraction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A magnetically-based closed-loop corrosion-resistant filtration device includes a conveying pipe and a discharge chamber. The conveying pipe is used to convey the material to be filtered. A discharge pipe is arranged below the discharge chamber. A slide frame 1 and a slide frame 2 are slidably arranged inside the discharge chamber above the discharge pipe. The slide frame 1 is provided with a partition that closes the conveying pipe and a sleeve that penetrates the partition and extends into the conveying pipe. The slide frame 2 is provided with a magnetic rod sleeved inside the sleeve.

[0007] Preferably, the first and second slides are distributed away from the feed pipe in sequence, one end of the sleeve is fixed to the first slide, one end of the magnetic rod is fixed to the second slide, and the other ends of the sleeve and the magnetic rod extend into the feed pipe.

[0008] Preferably, the magnetic rod can move with the slide two and move away from the top of the discharge tube.

[0009] Preferably, the side of the material discharge chamber is provided with an outer sliding plate 1 and an outer sliding plate 2 that are slidably arranged. The outer sliding plate 1 is provided with an outer magnetic plate 1 that is magnetically attracted to the inner magnetic plate 1 on the slide frame 1, and the outer sliding plate 2 is provided with an outer magnetic plate 2 that is magnetically attracted to the inner magnetic plate 2 on the slide frame 2.

[0010] Preferably, the material discharge chamber is provided with a mounting plate for installing a first cylinder, the output end of the first cylinder is connected to an outer slide plate one, and a second cylinder connected to an outer slide plate two is installed on the outer slide plate one.

[0011] Preferably, the material feeding chamber is provided with a slide rod parallel to the sliding direction of outer slide plate one and outer slide plate two, and slide frame one and slide frame two are slidably mounted on the slide rod.

[0012] Preferably, the material discharge chamber is equipped with a sealing plate that encloses its interior.

[0013] Preferably, the sleeve and the magnetic rod are multiple and spaced apart.

[0014] Preferably, the material of the conveying pipe, the discharge chamber, and the sleeve is stainless steel.

[0015] The beneficial effects of this invention are:

[0016] 1. A magnetic rod extends into the conveying pipe through a sleeve to magnetically attract ferromagnetic impurities on the material to the sleeve. When it is necessary to remove the magnetically attracted ferromagnetic impurities from the sleeve, the sliding of the first and second slides moves the ferromagnetic impurities on the sleeve to the top of the discharge pipe. The second slide further moves the magnetic rod away from the top of the discharge pipe, so that the ferromagnetic impurities on the sleeve can fall into the discharge pipe for removal under the action of gravity. This greatly improves the cleaning efficiency of ferromagnetic impurities and the reliability of filtration, ensuring the impurity removal effect of the material.

[0017] 2. The present invention has good sealing performance during filtration, and the conveying pipe, discharge chamber and sleeve are made of stainless steel, so that the present invention has strong corrosion resistance and can be used for filtration of corrosive materials, thus ensuring the applicability and reliability of filtration.

[0018] 3. By setting external sliding plates one and two, and using magnetic attraction to drive the internal sliding frame one and two to slide, the internal sliding frame one and two are moved by external non-contact drive, so as to remove impurities from the material and avoid corrosive materials from corroding the interior, thus ensuring the service life of the filter of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a cross-sectional view of the present invention. Figure 1 ;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a cross-sectional view of the present invention. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the material feeding process of the present invention. Figure 1 ;

[0025] Figure 7 This is a schematic diagram of the material feeding process of the present invention. Figure 2 .

[0026] In the diagram: 1. Material conveying pipe; 2. Material dropping chamber; 21. Slide 1; 211. Sleeve; 212. Partition plate; 213. Inner magnetic plate 1; 22. Slide 2; 221. Magnetic rod; 222. Inner magnetic plate 2; 222. Slide rod; 23. Material dropping pipe; 24. Mounting plate; 25. Sealing plate; 26. Outer sliding plate 1; 31. Outer magnetic plate 1; 4. Outer sliding plate 2; 41. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0028] In the description of this specification, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0029] like Figures 1 to 7 As shown, a magnetically-based sealed anti-corrosion filtration device includes a conveying pipe 1 and a discharge chamber 2, which are arranged adjacent to each other. The conveying pipe 1 is used to convey the material to be filtered. A discharge pipe 24 is arranged below the discharge chamber 2, which is used to convey ferromagnetic impurities filtered from the material. A sealing plate 26 is installed on the discharge chamber 2 to seal its interior. The sealing plate 26 provides good sealing performance during filtration.

[0030] The material discharge chamber 2 is equipped with a slide frame 21 and a slide frame 22 located above the material discharge pipe 24. The slide frame 21 and the slide frame 22 are distributed away from the material conveying pipe 1 in sequence. The slide frame 21 is provided with a partition 212 that closes the material conveying pipe 1 and a sleeve 211 that passes through the partition 212 and extends into the material conveying pipe 1. The material conveying pipe 1 and the material discharge chamber 2 are either closed off or connected by the partition 212.

[0031] The slide 22 is provided with a magnetic rod 221 sleeved in a sleeve 211. The sleeve 211 is made of stainless steel. When filtering corrosive materials in this embodiment, the stainless steel sleeve 211 protects the magnetic rod 221 inside, thereby improving the service life of the magnetic rod 221.

[0032] Furthermore, the material of the conveying pipe 1 and the discharge chamber 2 is also stainless steel, so that this embodiment has strong corrosion resistance and can be used for filtering corrosive materials, making the application range of this embodiment wider, thus ensuring the applicability and reliability of the filtration application of this embodiment.

[0033] One end of the sleeve 211 is fixed on the slide 21. The slide 21 moves synchronously, causing the sleeve 211 to move. One end of the magnetic rod 221 is fixed on the slide 22. The slide 22 moves synchronously, causing the magnetic rod 221 to move.

[0034] The other end of the sleeve 211 and the magnetic rod 221 extend into the conveying pipe 1. Specifically, there are multiple sleeves 211 and magnetic rods 221 that are spaced apart. The spaced sleeves 211 and magnetic rods 221 work together to magnetically filter the material conveyed in the conveying pipe 1. That is, the magnetic properties of the magnetic rods 221 are used to magnetically attract and adsorb ferromagnetic impurities on the material onto the sleeves 211.

[0035] The magnetic rod 221 can move with the slide 22 and move away from the top of the discharge tube 24, that is, the magnetic rod 221 can move inside the sleeve 211. Specifically, when it is necessary to remove the ferromagnetic impurities magnetically attracted on the sleeve 211, the slide 1 and slide 22 are driven to slide, thereby moving the ferromagnetic impurities on the sleeve 211 to the top of the discharge tube 24 (see reference). Figures 5 to 6 (State change), at this time, material conveying in conveying pipe 1 is suspended to avoid interference with the material conveying and filtration caused by the operation of removing ferromagnetic impurities.

[0036] The subsequent carriage 22 slides further to move the magnetic rod 221 away from the top of the discharge tube 24 (see reference). Figures 6 to 7 The state change), that is, the magnetic rod 221 inside the sleeve 211 is displaced to the right, and at this time, the section of sleeve 211 above the discharge pipe 24 is hollow inside, so that the section of sleeve 211 above the discharge pipe 24 is not magnetic, and the ferromagnetic impurities on the section of sleeve 211 can fall into the discharge pipe 24 for removal under the action of gravity, so as to greatly improve the cleaning efficiency of ferromagnetic impurities and the reliability of filtration, ensure the impurity removal effect of materials, and not cause the clogging problem in the filtration process of this embodiment.

[0037] Furthermore, the material discharge chamber 2 is provided with an outer sliding plate 3 and an outer sliding plate 4 that are slidably disposed on the side. The material discharge chamber 2 is provided with a mounting plate 25 for installing a first cylinder. The output end of the first cylinder is connected to the outer sliding plate 3. A second cylinder connected to the outer sliding plate 4 is installed on the outer sliding plate 3. The outer sliding plate 3 and the outer sliding plate 4 are driven to slide once by the first cylinder, and the outer sliding plate 4 is driven to slide further by the second cylinder.

[0038] Furthermore, the outer slide plate 3 is provided with an outer magnetic plate 31 that is magnetically attracted to the inner magnetic plate 213 on the slide frame 21. The outer magnetic plate 31 is fixed on the outer slide plate 3, and the inner magnetic plate 213 is fixed on the slide frame 21. The outer magnetic plate 31 is moved by the sliding of the outer slide plate 3, and the slide frame 21 is moved synchronously by the inner magnetic plate 213 that is magnetically attracted to the outer magnetic plate 31.

[0039] The outer slide plate 24 is provided with an outer magnetic plate 241 that is magnetically attracted to the inner magnetic plate 222 on the slide frame 22. The outer magnetic plate 241 is fixed on the outer slide plate 24, and the inner magnetic plate 222 is fixed on the slide frame 22. The outer magnetic plate 24 slides, which drives the outer magnetic plate 241 to slide. In turn, the inner magnetic plate 222 that is magnetically attracted to the outer magnetic plate 241 drives the slide frame 22 to slide synchronously.

[0040] Furthermore, the material unloading chamber 2 is equipped with a slide rod 23 that is parallel to the sliding direction of the outer slide plate 1 3 and the outer slide plate 2 4. The slide frame 1 21 and the slide frame 22 are slidably mounted on the slide rod 23. The slide rod 23 guides the sliding displacement of the slide frame 1 21 and the slide frame 22, so as to make the sliding control of the slide frame 1 21 and the slide frame 22 more reliable.

[0041] This embodiment utilizes magnetic attraction to drive the internal slides 21 and 22 to achieve magnetic filtration of the magnetic rod 221 and impurity removal of the sleeve 211. That is, by externally driving the internal slides 21 and 22 to move, impurities are removed and cleaned from the material, thereby avoiding the situation where corrosive materials corrode the interior (if the driving component is placed inside this embodiment, corrosive materials will inevitably corrode the internal circuits and electrical components), thus ensuring the service life of the filter in this embodiment.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetically-based closed-loop corrosion-resistant filtration device, comprising a conveying pipe (1) and a discharge chamber (2), wherein the conveying pipe (1) is used to convey the material to be filtered, and a discharge pipe (24) is provided below the discharge chamber (2), characterized in that: The material discharge chamber (2) is equipped with a slide frame 1 (21) and a slide frame 2 (22) located above the material discharge pipe (24). The slide frame 1 (21) is provided with a partition (212) that closes the material conveying pipe (1) and a sleeve (211) that passes through the partition (212) and extends into the material conveying pipe (1). The slide frame 2 (22) is provided with a magnetic rod (221) sleeved in the sleeve (211).

2. The magnetically-based sealed corrosion-resistant filtration device as described in claim 1, characterized in that: The first slide (21) and the second slide (22) are distributed away from the feed pipe (1) in sequence. One end of the sleeve (211) is fixed on the first slide (21), and one end of the magnetic rod (221) is fixed on the second slide (22). The other ends of the sleeve (211) and the magnetic rod (221) extend into the feed pipe (1).

3. The magnetically-based sealed corrosion-resistant filtration device as described in claim 1, characterized in that: The magnetic rod (221) can move with the slide (22) and move away from the top of the drop tube (24).

4. The magnetically-based sealed corrosion-resistant filter device as described in claim 1, characterized in that: The material discharge chamber (2) is provided with an outer sliding plate 1 (3) and an outer sliding plate 2 (4) that are slidably arranged. The outer sliding plate 1 (3) is provided with an outer magnetic plate 1 (31) that is magnetically attracted to the inner magnetic plate 1 (213) on the slide frame 1 (21). The outer sliding plate 2 (4) is provided with an outer magnetic plate 2 (41) that is magnetically attracted to the inner magnetic plate 2 (222) on the slide frame 2 (22).

5. A magnetically-based sealed corrosion-resistant filter device as described in claim 4, characterized in that: The material discharge chamber (2) is provided with a mounting plate (25) for installing the first cylinder. The output end of the first cylinder is connected to the outer slide plate one (3). The outer slide plate one (3) is equipped with a second cylinder connected to the outer slide plate two (4).

6. The magnetically-based sealed anti-corrosion filtration device as described in claim 4, characterized in that: The material discharge chamber (2) is provided with a slide rod (23) that is parallel to the sliding direction of the outer slide plate one (3) and the outer slide plate two (4). The slide frame one (21) and the slide frame two (22) are slidably mounted on the slide rod (23).

7. A magnetically-based sealed corrosion-resistant filter device as described in claim 1, characterized in that: The material discharge chamber (2) is equipped with a sealing plate (26) to enclose its interior.

8. A magnetically-based sealed corrosion-resistant filter device as described in claim 1, characterized in that: The sleeve (211) and the magnetic rod (221) are multiple and spaced apart.

9. A magnetically-based sealed corrosion-resistant filter device as described in claim 1, characterized in that: The material of the conveying pipe (1), the dropping chamber (2), and the sleeve (211) is stainless steel.