A high-efficiency magnetic iron-removing device for a cotton cleaning process

Abstract

The application relates to a high-efficiency magnetic absorption and iron removal device for a cotton cleaning process and relates to the technical field of magnetic separation and iron removal equipment. The device comprises a mounting shell and a magnetic force separation and iron removal assembly, the bottom end of the mounting shell is detachably provided with a collecting disc, the magnetic force separation and iron removal assembly comprises an inner cylinder and an outer cylinder, a magnetic force ring which can be displaced is arranged between the inner cylinder and the outer cylinder, and magnetic rods are arranged on the magnetic force ring; a collecting notch and a hollow interlayer are arranged on the inner cylinder, the hollow interlayer is provided with an interlayer plate which can be displaced, a discharge port penetrates through the outer cylinder, and the collecting notch and the discharge port are in communication. The permanent magnetic rods are arranged to form a working magnetic field, no continuous power supply is needed during the iron removal process, no additional operation power consumption is needed, and electric energy is saved; the magnetic force ring and the interlayer plate are designed to be displaced to realize demagnetization and iron removal, and iron impurities are introduced into the detachable collecting disc through the collecting notch and the discharge port and are collected and recycled. The device can realize cleaning without stopping the machine, cleaning without disassembling the machine, avoids energy loss caused by the start and stop of a production line, and indirectly realizes the energy-saving effect.

Description

Technical Field

[0001] This invention relates to the field of magnetic separation and iron removal equipment technology, and in particular to a high-efficiency magnetic iron removal device for cotton cleaning process. Background Technology

[0002] In the process of conveying bulk materials (such as raw cotton and chemical fibers in the textile cleaning process), it is usually necessary to install a magnetic iron removal device to remove ferromagnetic impurities such as iron nails and iron filings, so as to prevent damage to downstream equipment or cause safety accidents.

[0003] Existing pipeline-type magnetic iron removal devices mostly employ the method of directly fixing magnetic rods or plates within the material flow channel, using a magnetic field to adsorb and retain ferromagnetic impurities. However, these traditional magnetic separation structures share a common technical deficiency: the adsorption process and the cleaning process share the same set of magnetic sources. After the magnetic rods are saturated with impurities, the working surface of the magnetic field is covered, and the adsorption capacity is significantly reduced.

[0004] To remove impurities, the machine needs to be stopped, the magnetic rods removed, and the impurities manually cleaned before being reinstalled. This causes several problems: the iron removal process requires interrupting the cotton cleaning operation, reducing the throughput per unit time, and increasing energy consumption during production line start-up and shutdown; simultaneously, because the impurities are tightly adhered to the surface of the magnetic rods, manual cleaning easily leads to impurity residue and back-mixing, increasing the risk of wear or damage to downstream precision components.

[0005] Therefore, there is an urgent need for a magnetic iron removal device that can reduce downtime and achieve smooth slag discharge. Summary of the Invention

[0006] The purpose of this invention is to provide a high-efficiency magnetic iron removal device for cotton cleaning process to solve the above-mentioned technical problems.

[0007] The present invention provides a high-efficiency magnetic iron removal device for cotton cleaning process, which adopts the following technical solution: including a mounting shell and a magnetic separation iron removal component disposed in the mounting shell, wherein a collection tray located below the magnetic separation iron removal component is detachably installed at the bottom end of the mounting shell;

[0008] The magnetic separation and iron removal assembly includes an inner cylinder and an outer cylinder located outside the inner cylinder. A movable magnetic ring is provided between the inner cylinder and the outer cylinder. Magnetic rods are arranged on the magnetic ring. The magnetic rods are permanent magnets, preferably made of neodymium iron boron permanent magnet material, which can form a stable adsorption magnetic field on the inner wall of the inner cylinder without power, used to adsorb iron impurities mixed in the cotton flow during the cotton cleaning process. The inner cylinder is provided with a collection slot and a hollow interlayer. A movable interlayer plate is provided in the hollow interlayer. A discharge port is penetrating the outer cylinder. The collection slot and the discharge port are connected.

[0009] Optionally, a cone is installed inside the inner cylinder, and the side wall of the cone is inclined toward the inner wall of the inner cylinder, so that the cotton flow has a tendency to move toward the inner wall of the inner cylinder after contacting the side wall of the cone.

[0010] Optionally, a rotating frame is mounted on the mounting shell, the inner cylinder is rotatably engaged with the rotating frame, and a communication port is provided at the bottom end of the mounting shell.

[0011] Optionally, the inner wall of the inner cylinder is provided with a plurality of partition strips.

[0012] Optionally, a guide bar is also provided on the inner wall of the inner cylinder. The guide bar is connected and cooperates with the separator bar so that ferromagnetic impurities fall along the guide bar to the collection trough after being demagnetized in the inner cylinder.

[0013] Optionally, the inner cylinder is provided with a mating opening, and the interlayer plate is provided with a first control handle, which passes through the mating opening and slides along the mating opening when the interlayer plate is displaced within the hollow interlayer.

[0014] Optionally, the magnetic ring is provided with a second control handle, which passes through the discharge port and slides along the discharge port.

[0015] Optionally, the inner cylinder and the outer cylinder are respectively provided with counterweights at the first control handle and the second control handle, so that the first control handle and the second control handle are automatically positioned on the side facing the collection tray under the action of gravity.

[0016] Optionally, the bottom of the collection tray is provided with a first sliding groove and a second sliding groove. A first control long handle is installed at the first sliding groove, and a second control long handle is installed at the second sliding groove. The top of the first control long handle and the second control long handle are provided with a mating interface. The first control long handle is connected to the first control short handle via the mating interface, and the second control long handle is connected to the second control short handle via the mating interface.

[0017] Optionally, an auxiliary frame is provided inside the collection tray, the first control handle is installed inside the auxiliary frame, the auxiliary frame is provided with a first slot, a base frame is installed at the bottom of the auxiliary frame, a second slot is provided on the base frame, a balance plate is slidably arranged at the first slot and the second slot, and the balance plate is installed on the first control handle.

[0018] Optionally, a return spring is provided at one end of the balance plate.

[0019] Optionally, a side arc plate is provided at the side end of the outer cylinder.

[0020] Optionally, a connecting plate is provided on the side of the collection tray, and a U-shaped groove is provided on the connecting plate. A connecting port is provided at the bottom of the mounting shell, and a connector is screwed into the connecting port to lock the connecting plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Compared with existing iron removal devices that use electromagnetic coils for continuous excitation, this invention uses permanent magnet rods arranged to form a working magnetic field. During iron removal, no continuous power supply is required, and no additional operating power is needed, saving energy. The movable design of the magnetic coil and sandwich plate enables demagnetization and iron removal. Iron impurities are collected in a detachable collection tray via a collection trough and discharge port for centralized recovery. The purely physical separation process does not involve chemical cleaning agents or cooling media, resulting in no waste liquid or waste oil discharge. It efficiently removes iron impurities carried by raw cotton during the cotton cleaning process, effectively preventing damage to the carding cloth of downstream carding machines and drawing frames, extending the service life of textile main equipment, reducing the frequency of metal spare parts replacement and material waste, and meeting the requirements of green industrial production and energy conservation and emission reduction.

[0023] It can achieve cleaning without stopping the machine or disassembling the machine, avoiding energy loss during production line start-up and shutdown, and indirectly achieving energy-saving effects.

[0024] 2. The sandwich panel inside the hollow sandwich layer is movable and can cooperate with the collection trough to form a collection groove. The collection trough and the discharge port are connected. The channel opening and closing can be adjusted during slag discharge. After the impurities are discharged, the channel is reset and continues to adsorb, so that the switching between the two states of adsorption and slag discharge is carried out in an orderly manner.

[0025] 3. The collection tray is detachably installed at the bottom of the mounting shell and located below the component. Impurities that fall after demagnetization are directly collected into the collection tray, which facilitates the centralized collection of impurities. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the magnetic separation and iron removal assembly;

[0028] Figure 3 This is a cross-sectional view of the magnetic separation and iron removal assembly;

[0029] Figure 4 This is a schematic diagram of a rotating bracket mounted on the mounting housing;

[0030] Figure 5 This is a schematic diagram of the structure of the connection port at the bottom of the mounting shell;

[0031] Figure 6 This is a schematic diagram of the structure with guide strips installed in the inner cylinder;

[0032] Figure 7 yes Figure 5 A magnified view of a section at point A in the middle;

[0033] Figure 8This is a schematic diagram of a structure with a first sliding groove and a second sliding groove at the bottom of the collection tray;

[0034] Figure 9 This is a schematic diagram of a structure in which a first control handle is provided on the first sliding groove;

[0035] Figure 10 This is a structural diagram of the auxiliary frame and base frame inside the collection tray;

[0036] Figure 11 This is a schematic diagram of the connection between the collection tray and the mounting shell;

[0037] Figure 12 This is a schematic diagram of the structure of the inner cylinder, magnetic ring, and outer cylinder working together.

[0038] Figure 13 This is a schematic diagram of the structure when the collection trough and discharge port at the inner cylinder are connected after the sandwich panel and magnetic ring are moved to the side.

[0039] Figure 14 This is a structural diagram showing the installation of a limiting plate on the inner cylinder.

[0040] The attached diagram lists the components represented by each number as follows:

[0041] 1. Mounting shell; 11. Connecting port; 12. Connection port; 13. Connecting piece; 2. Magnetic separation and iron removal assembly; 21. Inner cylinder; 211. Collection trough; 212. Hollow interlayer; 213. Interlayer plate; 2131. First control handle; 214. Separator strip; 2141. Through-hole; 215. Guide strip; 216. Mating port; 217. Limiting plate; 2171. Guide hole; 2172. Guide port; 22. Outer cylinder; 221. Discharge port; 23. Magnetic 231. Magnetic rod; 232. Second control short handle; 24. Conical cylinder; 25. Rotating frame; 3. Collection tray; 31. First sliding groove; 32. First control long handle; 33. Second sliding groove; 34. Second control long handle; 35. Auxiliary frame; 351. First slot; 36. Base frame; 361. Second slot; 37. Balance plate; 38. Return spring; 39. Connecting plate; 310. Threaded round opening; 311. Cover; 391. U-shaped groove; 4. Side arc plate. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0043] Reference Figure 1 , Figure 2 , Figure 3 , Figure 12 , Figure 13 This embodiment provides a high-efficiency magnetic iron removal device for cotton cleaning process, including a mounting shell 1 and a magnetic separation iron removal component 2 disposed within the mounting shell 1. A collection tray 3 located below the magnetic separation iron removal component 2 is detachably installed at the bottom end of the mounting shell 1. The magnetic separation iron removal component 2 includes an inner cylinder 21 and an outer cylinder 22 located outside the inner cylinder 21. A movable magnetic ring 23 is disposed between the inner cylinder 21 and the outer cylinder 22, and magnetic rods 231 are arranged on the magnetic ring 23. The inner cylinder 21 is provided with a collection slot 211 and a hollow interlayer 212. A movable interlayer plate 213 is disposed within the hollow interlayer 212. A discharge port 221 penetrates the outer cylinder 22, and the collection slot 211 and the discharge port 221 are interconnected.

[0044] An annular gap is formed between the inner cylinder 21 and the outer cylinder 22. A magnetic ring 23 is specifically disposed within this annular gap and can move along the cylinder direction. Several magnetic rods 231 are arranged circumferentially and fixed on the magnetic ring 23, moving together with it. A collection slot 211 with a certain depth is provided on the wall of the inner cylinder 21. A sandwich plate 213 is placed within the hollow sandwich 212. A collection groove is formed at the collection slot 211 through the sandwich plate 213, capable of storing ferromagnetic impurities. Magnetic rods can be correspondingly distributed in the area of ​​the collection slot 211, allowing for concentrated storage in the collection groove. This facilitates the ferromagnetic impurities to fall from the collection slot 211 and discharge port 221 into the collection tray 3 after the sandwich plate 213 moves laterally. Specifically, the depth of the collection groove formed at the collection slot 211 depends on the thickness of the inner cylinder 21, and the depth of the collection groove can be increased or decreased by changing the thickness of the inner cylinder 21.

[0045] Furthermore, referring to Figure 14 A limiting plate 217 is installed at the rear edge of the collection trough 211. The limiting plate 217 is used to restrict ferromagnetic impurities, further improving the effect of transferring ferromagnetic impurities from the collection trough 211 to the discharge port 221 during cleaning operations. The limiting plate 217 may be provided with guide holes 2171 and guide ports 2172 to facilitate airflow.

[0046] The magnetic separation and iron removal component 2 can be structurally defined as the adsorption station area of ​​the collection trough 211. The aforementioned slag discharge refers to the action of transferring ferromagnetic impurities at the collection trough 211 to the collection tray 3. Working principle: The cotton flow containing ferromagnetic impurities passes through the inner cylinder 21. The magnetic field generated by the magnetic rod 231 penetrates the inner cylinder 21 wall, adsorbs the ferromagnetic impurities, and retains them on the inner wall of the inner cylinder 21. When cleaning is required, the magnetic ring 23 along with the magnetic rod 231 is moved away from the adsorption station. The magnetic field is then removed, and the ferromagnetic impurities are confined to the deep wall of the trough. The impurities lose their magnetic constraint and fall into the collection trough 211, and are then discharged outside the outer cylinder 22 through the discharge port 221, finally falling into the collection tray 3 below.

[0047] The magnetic rod 231 is aligned with the collection trough 211 to form a high-intensity concentrated magnetic field in the slag collection area. Within the normal cotton flow conveying conditions of the cotton cleaning process, the permanent magnetic attraction force of the magnetic rod 231 to ferromagnetic impurities is greater than the fluid drag force and instantaneous turbulent impact force generated by the cotton flow. The iron impurities are stably adsorbed and confined at the position of the collection trough 211 and will not move with the cotton flow.

[0048] In operation, under adsorption conditions, the interlayer plate 213 is always sealed to block the collection trough 211 to prevent cotton from flowing into the slag discharge channel. The slag discharge operation strictly follows the time sequence control: first, the magnetic ring 23 is axially shifted to demagnetize the slag collection area, then the air duct of the device is briefly depressurized or the common principle of local airflow obstruction is used to reduce the airflow speed inside the cavity, then the interlayer plate 213 is slid open to discharge slag by gravity. After the slag discharge is completed, the interlayer plate 213 is reset to seal the collection trough 211, and then the air duct is restored to normal negative pressure conveying. The main conveying fan does not need to be shut down throughout the process, which effectively avoids cotton from leaking out of the collection trough 211 and backflowing from the discharge port 221 under negative pressure conditions.

[0049] Reference Figure 12 An arc-shaped opening can be provided on the outer cylinder 22, which fits the magnetic rod 231, making the movement of the magnetic ring 23 more precise. The magnetic ring 23 can be understood as the mounting frame for the magnetic rod 231. (Refer to...) Figure 13 , Figure 13 The diagram illustrates the interconnected structure between the collection slot 211 and the discharge port 221 after the sandwich panel 213 is moved laterally.

[0050] Reference Figure 2 , Figure 3 A cone 24 is installed inside the inner cylinder 21. The side wall of the cone 24 is inclined toward the inner wall of the inner cylinder 21, so that the cotton flow has a tendency to move toward the inner wall of the inner cylinder 21 after contacting the side wall of the cone 24.

[0051] A flow guide space that narrows from the inside out is formed between the side wall of the cone 24 and the inner wall of the inner cylinder 21. The surface of the cone 24 needs to be smoothed to reduce cotton snagging.

[0052] After entering the inner cylinder 21, the cotton flow first contacts and impacts the side wall of the cone cylinder 24. Under the guidance of the inclined side wall, the cotton flow tends to move towards the inner wall of the inner cylinder 21, making the cotton in the flow more easily dispersed, exposing the ferromagnetic impurities carried in the cotton, and passing closer to the inner wall of the inner cylinder 21. It flows through the strong magnetic field area of ​​the magnetic rod 231, making it easier for the ferromagnetic impurities carried in the cotton flow to be adsorbed, thus improving the adsorption effect on impurities.

[0053] Reference Figure 4 , Figure 5 A rotating frame 25 is installed on the mounting shell 1, and the inner cylinder 21 is rotatably engaged with the rotating frame 25. A communication port 11 is provided at the bottom end of the mounting shell 1.

[0054] The inner cylinder 21 rotates smoothly in cooperation with the rotating frame 25. The size of the connecting port 11 corresponds to the collection tray 3, so that during cleaning, ferromagnetic impurities can fall from the connecting port 11 into the collection tray 3 for collection.

[0055] Reference Figure 2 The inner wall of the inner cylinder 21 is provided with several partition strips 214.

[0056] Even if there are ferromagnetic impurities on the inner wall of the inner cylinder 21 that are not collected at the collection slot 211 and are not discharged from the collection slot 211, the ferromagnetic impurities can be continuously dropped to the collection slot 211 by rotating the inner cylinder 21. The separator 214 plays the role of intercepting and accumulating ferromagnetic impurities.

[0057] Furthermore, the separator 214 is disposed at the edge of the collection slot 211, and the through-hole 2141 is inserted through the separator 214, so that the ferromagnetic impurities accumulated at the separator 214 can fall quickly from the through-hole 2141 to the collection slot 211 along the plane of the separator 214.

[0058] Furthermore, the separator 214 is provided with a guiding slope, which makes it easier for ferromagnetic impurities to transfer.

[0059] Reference Figure 6 The inner wall of the inner cylinder 21 is also provided with guide strips 215. The guide strips 215 cooperate with the separator strips 214 so that ferromagnetic impurities fall along the guide strips 215 to the collection trough 211 after being demagnetized in the inner cylinder 21.

[0060] The guide strip 215 and the separator strip 214 cooperate with each other, and the two connect to form a guide path leading to the collection groove.

[0061] Reference Figure 5 , Figure 7The inner cylinder 21 is provided with a mating opening 216, and the sandwich plate 213 is provided with a first control short handle 2131. The first control short handle 2131 passes through the mating opening 216 and slides along the mating opening 216 when the sandwich plate 213 moves within the hollow sandwich 212.

[0062] The first control handle 2131 is relatively short and is always located in the inner wall area of ​​the mounting shell 1. The first control handle 2131 is used to control the displacement of the sandwich panel 213.

[0063] Reference Figure 7 A second control handle 232 is provided on the magnetic ring 23. The second control handle 232 passes through the discharge port 221 and slides along the discharge port 221.

[0064] The second control handle 232 is relatively short and is always located in the inner wall area of ​​the mounting shell 1. The second control handle 232 is used to control the displacement of the magnetic coil 23.

[0065] The inner cylinder 21 and the outer cylinder 22 are respectively equipped with counterweights at the first control handle 2131 and the second control handle 232, so that the first control handle 2131 and the second control handle 232 automatically face the collection tray 3 under the action of gravity. Figure 5 As shown.

[0066] The counterweight is used to increase the weight of a certain area of ​​the inner cylinder 21 and the outer cylinder 22, so that the inner cylinder 21 and the outer cylinder 22 can face downwards when stationary, corresponding to the structure of the collection tray 3.

[0067] Reference Figure 8 , Figure 9 The bottom of the collection tray 3 is provided with a first sliding groove 31 and a second sliding groove 33. A first control long handle 32 is installed at the first sliding groove 31, and a second control long handle 34 is installed at the second sliding groove 33. The top of the first control long handle 32 and the second control long handle 34 are provided with a mating interface. The first control long handle 32 is connected to the first control short handle 2131 via the mating interface, and the second control long handle 34 is connected to the second control short handle 232 via the mating interface.

[0068] By optimizing the structure of the collection tray 3, ferromagnetic impurities at the collection slot 211 can be quickly cleaned without disassembling the collection tray 3.

[0069] Furthermore, refer to Figure 9 A threaded opening 310 can be provided at the bottom of the collection tray 3, and a cover 311 can be provided at the threaded opening 310. The bottom surface of the collection tray 3 is sloped so that the threaded opening 310 is the lowest point. This allows ferromagnetic impurities to automatically accumulate at the threaded opening 310. After unscrewing the cover 311, the ferromagnetic impurities can be efficiently discharged without disassembling the collection tray 3.

[0070] Reference Figure 10 An auxiliary frame 35 is provided inside the collection tray 3. A first control handle 32 is installed inside the auxiliary frame 35. A first slot 351 is provided on the auxiliary frame 35. A base frame 36 is installed at the bottom of the auxiliary frame 35. A second slot 361 is provided on the base frame 36. A balance plate 37 is slidably provided at the first slot 351 and the second slot 361. The balance plate 37 is installed on the first control handle 32. Telescopic dustproof sealing sleeves can be provided at the first slot 351 and the second slot 361 for sealing.

[0071] By incorporating auxiliary frame 35, base frame 36, and balance plate 37, the stability and accuracy of the first control handle 32's movement are improved. The slots at different heights on the auxiliary frame 35 and base frame 36 provide sufficient lateral support for the first control handle at different heights. Similarly, the second control handle also incorporates auxiliary frame 35, base frame 36, and a horizontal plate structure to achieve the same technical effect.

[0072] Reference Figure 10 A return spring 38 is provided at one end of the balance plate 37. Specifically, one end of the balance plate 37 is configured as an L-shaped structure, and one end of the return spring 38 is connected to the balance plate 37. The return spring 38 is used to reset the first control plate. Similarly, another return spring 38 and other structures are also provided at the second control plate to achieve the corresponding technical effect.

[0073] Reference Figure 1 A side arc plate 4 is provided on the side end of the outer cylinder 22. This allows ferromagnetic impurities that fall out of the outer cylinder 22 to fall along the side arc plate 4 into the collection tray 3.

[0074] Reference Figure 11 A connecting plate 39 is provided on the side of the collection tray 3. A U-shaped groove 391 is provided on the connecting plate 39. A connecting port 12 is provided at the bottom of the mounting shell 1. A connector 13 is screwed into the connecting port 12 to lock the connecting plate 39.

[0075] During disassembly, the collection tray 3 is moved to the side, causing the connector 13 to disengage from the U-shaped groove 391 on the connecting plate 39, thus exposing the communication port 11 at the bottom of the mounting shell 1. Taking bolts as an example, the connector 13 is screwed into the connection port 12, and the connecting plate 39 is locked by the bolts, thereby locking the collection tray 3 to the mounting shell 1.

[0076] Therefore, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

Claims

1. A high-efficiency magnetic iron removal device for cotton cleaning process, characterized in that, It includes a mounting shell (1) and a magnetic separation and iron removal assembly (2) disposed inside the mounting shell (1). The bottom end of the mounting shell (1) is detachably equipped with a collection tray (3) located below the magnetic separation and iron removal assembly (2). The magnetic separation and iron removal assembly (2) includes an inner cylinder (21) and an outer cylinder (22) located outside the inner cylinder (21). A movable magnetic ring (23) is provided between the inner cylinder (21) and the outer cylinder (22), and magnetic rods (231) are arranged on the magnetic ring (23). A collection slot (211) and a hollow interlayer (212) are provided on the inner cylinder (21). A movable interlayer plate (213) is provided inside the hollow interlayer (212). A discharge port (221) is provided through the outer cylinder (22), and the collection slot (211) and the discharge port (221) are connected.

2. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 1, characterized in that, A cone (24) is installed inside the inner cylinder (21), and the side wall of the cone (24) is inclined toward the inner wall of the inner cylinder (21).

3. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 1, characterized in that, A rotating frame (25) is installed on the mounting shell (1), and the inner cylinder (21) is rotatably engaged with the rotating frame (25). A communication port (11) is provided at the bottom end of the mounting shell (1).

4. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 1, characterized in that, The inner wall of the inner cylinder (21) is provided with several partition strips (214).

5. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 4, characterized in that, The inner wall of the inner cylinder (21) is also provided with a guide strip (215), which is connected and cooperates with the partition strip (214).

6. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 1, characterized in that, The inner cylinder (21) is provided with a mating opening (216), and the sandwich plate (213) is provided with a first control handle (2131). The first control handle (2131) passes through the mating opening (216) and slides along the mating opening (216) when the sandwich plate (213) is displaced in the hollow sandwich (212).

7. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 6, characterized in that, The magnetic ring (23) is provided with a second control handle (232), which passes through the discharge port (221) and slides along the discharge port (221).

8. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 7, characterized in that, The inner cylinder (21) and outer cylinder (22) are respectively equipped with counterweights at the first control handle (2131) and the second control handle (232), so that the first control handle (2131) and the second control handle (232) are automatically positioned on the side facing the collection tray (3) under the action of gravity.

9. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 7, characterized in that, The bottom end of the collection tray (3) is provided with a first sliding groove (31) and a second sliding groove (33). A first control long handle (32) is installed at the first sliding groove (31), and a second control long handle (34) is installed at the second sliding groove (33). The top ends of the first control long handle (32) and the second control long handle (34) are provided with interfaces. The first control long handle (32) is connected to the first control short handle (2131) via the interface, and the second control long handle (34) is connected to the second control short handle (232) via the interface.

10. The high-efficiency magnetic iron removal device for the cotton cleaning process according to claim 9, characterized in that, An auxiliary frame (35) is provided inside the collection tray (3). The first control handle (32) is installed inside the auxiliary frame (35). A first slot (351) is provided on the auxiliary frame (35). A base frame (36) is installed at the bottom of the auxiliary frame (35). A second slot (361) is provided on the base frame (36). A balance plate (37) is slidably provided at the first slot (351) and the second slot (361). The balance plate (37) is installed on the first control handle (32).

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