Closed permanent magnet iron removing device for chemical raw material conveying pipeline

Abstract

The utility model relates to permanent magnet technical field discloses a kind of closed permanent magnet de-ironing devices for chemical raw material conveying pipeline, it includes sealing box, the feed inlet being arranged on the upper portion of sealing box, the first discharge outlet for discharging non-magnetic material and the second discharge outlet for discharging ferromagnetic material respectively arranged on bottom portion. First conveying belt assembly and second conveying belt assembly are arranged inside sealing box. Material falls to second conveying belt assembly from feed inlet, is conveyed to its right end and falls down;First conveying belt assembly is arranged above the right end of second conveying belt assembly, and the fixed roller of its right side is equipped with magnet. When material falls, non-magnetic material falls into first discharge outlet due to gravity;Ferromagnetic material is adsorbed to the bottom surface of the conveyor belt of first conveying belt assembly by magnet, and runs along with it, falls into second discharge outlet after bypassing magnetic field area. First and second rubber plates are further arranged on both sides of conveyor belt assembly conveyor belt. The utility model realizes the automatic distribution of material by double-layer conveying belt assembly and falling type magnetic separation structure, and has high separation precision, compact structure, effectively prevents material overflow.

Description

Technical Field

[0001] This utility model relates to the field of chemical machinery and equipment technology, specifically to a closed permanent magnet iron removal device for chemical raw material conveying pipelines, which is mainly suitable for the continuous automatic separation and removal of ferromagnetic metal impurities during the pipeline transportation of chemical powders and granular raw materials. Background Technology

[0002] In the production and transportation of chemical products, chemical raw materials (such as plastic particles, pharmaceutical powders, and additives) are typically conveyed pneumatically or by gravity through pipelines. Due to equipment wear or material entrainment, ferromagnetic impurities such as iron filings and nails often become mixed in with the materials. If these impurities are not removed, they can not only pose a safety hazard by generating sparks through friction and causing chemical dust explosions, but also damage downstream precision equipment such as reactors and injection molding machines. More seriously, iron ion contamination can directly lead to discoloration of chemical products, catalyst poisoning, or substandard purity, resulting in severe economic losses.

[0003] In existing technologies, iron removal in chemical pipelines often employs in-line magnetic rod filters or drawer-type iron separators. However, these devices are mostly static adsorption systems, requiring periodic manual shutdowns to clean iron filings from the magnetic rods. This cleaning process can easily cause secondary pollution, and since many chemical raw materials are corrosive or toxic, manual cleaning poses safety risks. Furthermore, conventional belt-type iron separators are mostly open structures used in the mining industry. If directly applied to the chemical field, they would lead to significant dust spillage, polluting the workshop environment, and would not meet the high sealing and continuous automated iron removal requirements of chemical production. Therefore, there is an urgent need for a compact, well-sealed, and automatically continuously dischargeable iron-specific iron removal device for the chemical industry. Utility Model Content

[0004] The purpose of this utility model is to provide a closed permanent magnet iron removal device for chemical raw material conveying pipelines, so as to solve the technical problems of existing chemical pipeline iron removal equipment that requires manual cleaning, is prone to dust overflow, has low separation purity, and is prone to contamination of chemical products by ferromagnetic impurities.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a closed permanent magnet iron removal device for chemical raw material conveying pipelines, comprising a transport structure, the transport structure including a sealed box, support columns and a first discharge port, support columns installed on both sides below the sealed box, a first discharge port provided on the right side of the bottom of the sealed box, a second discharge port provided on the right side of the first discharge port, the second discharge port being located inside the sealed box, a first conveyor belt assembly provided on the right side inside the sealed box, the first conveyor belt assembly being driven by a first drive motor, a second conveyor belt assembly provided on the left side below the first conveyor belt assembly, the second conveyor belt assembly being driven by a second drive motor;

[0006] The auxiliary structure includes a magnet, baffles, and a first rubber plate. A magnet is installed in the middle of the outer wall of the fixed roller on the left side of the first conveyor belt assembly, and baffles are installed on both sides of its outer wall. The first rubber plate is installed on both sides of the outer wall of the conveyor belt of the first conveyor belt assembly. A support roller is provided on the left side below the first conveyor belt assembly, and connecting columns are installed on both sides of the support roller. The outer side of the connecting columns is connected to the sealing box through bearings. The second rubber plate is installed on both sides of the outer wall of the conveyor belt of the second conveyor belt assembly. The second rubber plate is located between the two first rubber plates in vertical projection. A feed inlet for connecting to a chemical pipeline is provided on the left side above the second conveyor belt assembly. A first partition is provided on the right side below the second conveyor belt assembly. A second partition is provided between the first discharge port and the second discharge port. The lower part of the first partition and the lower part of the second partition are connected to the inner wall of the sealing box.

[0007] Preferably, the sealed housing is integrated with the first and second discharge ports, and the inlet is correspondingly positioned with the left side of the second conveyor belt assembly.

[0008] Preferably, the first conveyor belt assembly is configured with the left side higher than the right side.

[0009] Preferably, the support roller is positioned in close contact with the conveyor belt of the first conveyor belt assembly.

[0010] Preferably, the fixed roller on the left side of the first conveyor belt assembly is fixedly connected to the magnet and to the baffle.

[0011] Preferably, the first conveyor belt assembly and the first rubber plate are integrated, and the first conveyor belt assembly is located between the two side baffles.

[0012] Preferably, the conveyor belt of the second conveyor belt assembly and the second rubber plate are integrated into one unit.

[0013] Preferably, the right side of the first conveyor belt assembly is correspondingly positioned with respect to the second discharge port.

[0014] Preferably, the right side of the second conveyor belt assembly is correspondingly positioned to the first discharge port, and the support roller and the connecting column are fixedly connected.

[0015] Preferably, the connecting column and the bearing are rotatably connected, and the second drive motor connected to the second conveyor belt assembly and the first drive motor connected to the first conveyor belt assembly are both electrically connected to the controller.

[0016] Compared with existing technologies, the beneficial effects of this utility model are:

[0017] This invention employs a double-layer conveying structure combined with a falling magnetic separation principle. When chemical raw materials fall in a loose waterfall flow from the end of the second conveyor belt assembly (closing belt), the strong magnetic system inside the first conveyor belt assembly (iron removal belt) can accurately capture fine iron powder and larger iron pieces. This avoids the problem of material accumulation and pipe blockage caused by directly inserting magnetic rods into the material layer, as is common with traditional methods. It also solves the problem of bottom iron pieces not being attracted due to excessively thick material layers, significantly improving the purity of the chemical raw materials.

[0018] The main body of the device adopts a fully enclosed sealed box design, combined with the partition between the first and second discharge ports, and the labyrinthine lateral sealing structure formed by the first and second internal rubber plates, effectively preventing the leakage of toxic, harmful, or ultrafine chemical dust during the iron removal process, thus meeting the environmental protection and occupational health requirements of chemical workshops.

[0019] Through magnetic adsorption and rotary conveying on the bottom surface of the first conveyor belt assembly, the adsorbed iron impurities are carried away from the material flow area and automatically discharged to the second discharge port, realizing the continuous and automated iron removal process. There is no need for manual contact with chemical raw materials for cleaning, avoiding secondary pollution and safety risks caused by manual cleaning. The feed port cooperates with the second conveyor belt assembly and can be directly flanged to the material discharge pipe or the bottom of the pneumatic conveying unloader in the chemical production line. The double-layer folding arrangement allows the device to complete the functions of material distribution, iron removal and sorting in a limited vertical space, saving installation space in the chemical workshop. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

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

[0022] Figure 2 This is a side view of the structure of this utility model;

[0023] Figure 3 This is a side view sectional structural diagram of the present invention;

[0024] Figure 4 This is a partial top view cross-sectional diagram of the auxiliary structure of this utility model.

[0025] In the diagram: 1. Transport structure; 2. Auxiliary structure; 101. Sealed box; 102. Support column; 103. First discharge port; 104. Second discharge port; 105. First conveyor belt assembly; 106. Second conveyor belt assembly; 201. Magnet; 202. Baffle; 203. First rubber plate; 204. Support roller; 205. Connecting column; 206. Bearing; 207. Second rubber plate; 208. Feed inlet; 209. First partition; 210. Second partition. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. 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 scope of protection of this utility model.

[0029] Example 1:

[0030] Please see Figure 1-4This utility model provides a technical solution for a closed permanent magnet iron removal device for chemical raw material conveying pipelines: A closed permanent magnet iron removal device for chemical raw material conveying pipelines includes a transport structure 1, which includes a sealed box 101, support columns 102 and a first discharge port 103. Support columns 102 are installed on both sides below the sealed box 101. The first discharge port 103 is provided on the right side of the bottom of the sealed box 101. A second discharge port 104 is provided on the right side of the first discharge port 103. The second discharge port 104 is located inside the sealed box 101. A first conveyor belt assembly 105 is provided on the right side inside the sealed box 101. The first conveyor belt assembly 105 is driven by a first drive motor. A second conveyor belt assembly 106 is provided on the left side below the first conveyor belt assembly 105. The second conveyor belt assembly 106 is driven by a second drive motor.

[0031] Auxiliary structure 2 includes a magnet 201, a baffle 202, and a first rubber plate 203. A magnet 201 is installed in the middle of the outer wall of the fixed roller on the left side of the first conveyor belt assembly 105, and baffles 202 are installed on both sides of its outer wall. First rubber plates 203 are installed on both sides of the outer wall of the conveyor belt of the first conveyor belt assembly 105. A support roller 204 is located on the left side below the first conveyor belt assembly 105, and connecting columns 205 are installed on both sides of the support roller 204. The outer sides of the connecting columns 205 are connected to the sealed housing 101 via bearings 206. The second conveyor belt assembly 106 has connecting columns 201 and 202 on both sides of its outer wall. A second rubber plate 207 is installed, which is located between the first rubber plates 203 on both sides in vertical projection. The first rubber plates 203 and the second rubber plate 207 effectively prevent material from sliding sideways, reducing dust pollution and loss. A feed inlet 208 for connecting with a chemical pipeline is provided on the left side above the second conveyor belt assembly 106. A first partition 209 is provided on the right side below the second conveyor belt assembly 106. A second partition 210 is provided between the first discharge port 103 and the second discharge port 104. The lower part of the first partition 209 and the lower part of the second partition 210 are connected to the inner wall of the sealed box 101.

[0032] It also includes a controller, which is electrically connected to the first drive motor and the second drive motor respectively, and is used to set and coordinate the operating speed of the first conveyor belt assembly 105 and the second conveyor belt assembly 106 according to the separation requirements.

[0033] Example 2:

[0034] This utility model also provides another solution. Based on the first embodiment, the sealed housing 101 is integrated with both the first discharge port 103 and the second discharge port 104. The inlet 208 is correspondingly positioned with the left side of the second conveyor belt assembly 106. The first conveyor belt assembly 105 is positioned with the left side higher than the right, forming an "interception + conveying" structure. This extends the residence time of the ferromagnetic material in the magnetic field area, enhancing the adsorption effect. The upper part of the support roller 204 is tightly fitted to the conveyor belt of the first conveyor belt assembly 105. The fixed roller on the left side of the first conveyor belt assembly 105 is fixedly connected to the magnet 201. The magnetic field is evenly distributed, and the adsorption is firm, avoiding the problems of easy loosening and dust accumulation of traditional suspended magnets 201. It is fixedly connected to the baffle 202. The conveyor belt of the first conveyor belt assembly 105 and the second... The rubber plates 203 are integrated, the first conveyor belt assembly 105 is located between the two side baffles 202, the second conveyor belt assembly 106 is integrated with the second rubber plate 207, the right side of the first conveyor belt assembly 105 is correspondingly positioned with the second discharge port 104, and the right side of the second conveyor belt assembly 106 is correspondingly positioned with the first discharge port 103. The support roller 204 is fixedly connected to the connecting column 205, and the connecting column 205 is rotatably connected to the bearing 206. This reduces friction, extends the life of the conveyor belt, and reduces maintenance costs. The second drive motor connected to the second conveyor belt assembly 106 and the first drive motor connected to the first conveyor belt assembly 105 are both electrically connected to the controller, supporting functions such as speed adjustment, timing, and overload protection, thus improving the level of automation.

[0035] Working principle:

[0036] This device is connected to the conveying pipeline flange of the chemical production line via the feed inlet 208.

[0037] Chemical powder or granular raw materials fall into the second conveyor 106 below through the feed inlet 208. The second conveyor 106 acts as a feed belt, smoothly conveying the accumulated chemical raw materials to the right and forming a uniform and thin stream of material at its end.

[0038] When the material is conveyed to the right end of the second conveyor 106 and begins to fall freely, the material is in a loose state. At this time, the iron removal belt of the first conveyor 105, which is located above and close to the material flow, comes into play. The fixed roller on the left side inside the first conveyor 105 is equipped with a high-strength permanent magnet 201, such as a neodymium iron boron magnet, which generates a strong downward gradient magnetic field.

[0039] Iron powder, rust, and worn iron filings in the falling material flow are strongly attracted and penetrate the material layer, adhering tightly to the lower surface of the belt of the first conveyor 105. Non-magnetic qualified chemical materials are not affected by magnetic force and fall directly into the first discharge port 103 below under the action of gravity for discharge, entering the next process.

[0040] Iron impurities adsorbed on the surface of the belt of the first conveyor 105 continue to move to the right with the belt. When the belt carries the iron impurities away from the magnetic field coverage of the magnet 201, the magnetic force disappears, and the iron impurities automatically fall off under the action of gravity and centrifugal force, accurately falling into the second discharge port 104 separated by the second partition 210 for collection, thereby realizing the continuous, automatic and thorough separation of iron impurities from chemical raw materials.

[0041] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines, characterized in that, include The transport structure (1) includes a sealed box (101), support columns (102) and a first discharge port (103). Support columns (102) are installed on both sides below the sealed box (101). A first discharge port (103) is provided on the right side of the bottom of the sealed box (101). A second discharge port (104) is provided on the right side of the first discharge port (103). The second discharge port (104) is located inside the sealed box (101). A first conveyor belt assembly (105) is provided on the right side inside the sealed box (101). The first conveyor belt assembly (105) is driven by a first drive motor. A second conveyor belt assembly (106) is provided on the left side below the first conveyor belt assembly (105). The second conveyor belt assembly (106) is driven by a second drive motor. Auxiliary structure (2), comprising a magnet (201), a baffle (202), and a first rubber plate (203), wherein a magnet (201) is installed in the middle of the outer wall of the fixed roller on the left side of the first conveyor belt assembly (105), and baffles (202) are installed on both sides of the outer wall of the fixed roller. First rubber plates (203) are installed on both sides of the outer wall of the conveyor belt of the first conveyor belt assembly (105). A support roller (204) is provided on the left side below the first conveyor belt assembly (105), and connecting columns (205) are installed on both sides of the support roller (204). The outer side of the connecting columns (205) is connected to the sealed housing (101) via bearings (206). The second conveyor belt assembly (106) has a second rubber plate (207) installed on both sides of the outer wall of the conveyor belt. The second rubber plate (207) is located between the first rubber plates (203) on both sides in vertical projection. The upper left side of the second conveyor belt assembly (106) is provided with an inlet (208) that connects to the chemical pipeline. The lower right side of the second conveyor belt assembly (106) is provided with a first partition (209). The first outlet (103) and the second outlet (104) are provided with a second partition (210). The lower part of the first partition (209) and the lower part of the second partition (210) are connected to the inner wall of the sealed box (101).

2. The closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 1, characterized in that: The sealed box (101) is integrated with the first discharge port (103) and the second discharge port (104), and the feed port (208) is correspondingly positioned with the left side of the second conveyor belt assembly (106).

3. The closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 2, characterized in that: The first conveyor belt assembly (105) is configured with the left side higher than the right side.

4. A closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 3, characterized in that: The support roller (204) is positioned in close contact with the conveyor belt of the first conveyor belt assembly (105).

5. A closed-type permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 4, characterized in that: The fixed roller on the left side of the first conveyor belt assembly (105) is fixedly connected to the magnet (201) and to the baffle (202).

6. A closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 5, characterized in that: The first conveyor belt assembly (105) and the first rubber plate (203) are integrated, and the first conveyor belt assembly (105) is located between the two side baffles (202).

7. A closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 6, characterized in that: The second conveyor belt assembly (106) and the second rubber plate (207) are integrated.

8. A closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 7, characterized in that: The right side of the first conveyor belt assembly (105) is correspondingly positioned with respect to the second discharge port (104).

9. A closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 8, characterized in that: The right side of the second conveyor belt assembly (106) is correspondingly arranged with the first discharge port (103), and the support roller (204) and the connecting column (205) are fixedly connected.

10. A closed-loop permanent magnet iron removal device for chemical raw material conveying pipelines according to claim 9, characterized in that: The connecting column (205) and the bearing (206) are rotatably connected, and the second drive motor connected to the second conveyor belt assembly (106) and the first drive motor connected to the first conveyor belt assembly (105) are electrically connected to the controller.

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