A magnesium oxide dust collecting device when a CT is unwound

Abstract

The application discloses a magnesium oxide dust collecting device during CT uncoiling, and relates to the technical field of oriented silicon steel production and manufacturing technology, comprising an uncoiler body, a dust cleaning assembly, a dust removal box, a rotating shaft, a brush roller, a second belt, a reciprocating screw rod, a sliding block, a guide rod, a cleaning stick, and notches. The brush roller is made of conductive rubber material, static electricity generated on the surface of the brush roller is transmitted through the cleaning stick, the static electricity is transmitted to the guide rod through the sliding block, the wire connected to the guide rod is grounded, and thus the static electricity is released. This is beneficial to avoiding the occurrence of static electricity during dust removal, ensuring that the brush roller achieves good dust removal effect, and avoiding that the brush roller scratches the steel belt and affects the production quality of the oriented silicon steel.

Description

Technical Field

[0001] This invention relates to the field of grain-oriented silicon steel production technology, and in particular to a magnesium oxide dust collection device during CT uncoiling. Background Technology

[0002] The current production process of cold-rolled grain-oriented silicon steel is as follows: normalizing / pickling (CP) → rolling (ZR) → decarburizing annealing (CA) → high-temperature annealing (CB) → stretching and leveling annealing and coating with insulating layer (CT) → refining magnetic domain marking → shearing and coiling (CS).

[0003] The main function of the CT process is to apply an insulating layer to the silicon steel coil after high-temperature annealing and to perform stretching and flattening annealing to improve the sheet shape. Prior to this, the CA process has applied MgO coating liquid to the upper and lower surfaces of the silicon steel coil, the function of which has been completed in the CB process. After the CB high-temperature annealing, the MgO on the surface of the steel strip becomes dry and loose.

[0004] Before the silicon steel coils arrive at the CT scanner for processing, they must first be uncoiled and then the surface of the steel strip cleaned to remove magnesium oxide dust, thus ensuring it doesn't affect subsequent insulation coating and annealing. However, during uncoiling, the dry, loose magnesium oxide dust on the surface of the silicon steel coil easily scatters, negatively impacting the work environment and employee health. Therefore, a dust collection device is needed to systematically collect the scattered magnesium oxide dust, improving the cleanliness of the work environment and effectively reducing the pressure of subsequent steel strip cleaning.

[0005] For example, patent publication number CN111687161A discloses a dust collection method, dust collection device, and strip steel uncoiler. This dust collection method involves installing a dust collection device in the uncoiling area, which collects dust while oscillating cyclically along the uncoiling area. This invention, by employing an oscillating dust collection method, allows for selection of the dwell time in the dust-generating area according to requirements, thereby increasing the effective dust collection area, reducing equipment space requirements, and improving dust removal efficiency.

[0006] The aforementioned strip steel uncoiler removes dust by swinging the dust suction section during operation. Although the dust suction section expands the suction range during swinging, it is located on both sides of the steel coil and cannot contact the center of the coil. This results in the magnesium oxide powder in the center of the steel coil not being completely removed, and the magnesium oxide powder adsorbed on the upper and lower surfaces of the steel coil cannot be effectively removed either. Summary of the Invention

[0007] The purpose of this invention is to provide a magnesium oxide dust collection device during CT unwinding, which avoids the brush roller from scratching the steel strip and affecting subsequent use, while also preventing the occurrence of static electricity during dust removal and cleaning the brush roller to maintain good cleaning efficiency for the steel strip, thereby solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a magnesium oxide dust collection device for CT unwinding, comprising a dust cleaning component and a dust collection component.

[0009] The dust cleaning assembly includes a dust collection box, an internal rotating shaft, a brush roller fitted onto the outer surface of the rotating shaft, a second belt fitted onto the outer surface of the rotating shaft, a reciprocating screw connected to the other end of the second belt, a slider fitted onto the outer surface of the reciprocating screw, a guide rod passing through the slider, a cleaning roller connected to the side of the slider facing the brush roller, slots on both sides of the dust collection box containing cleaning sponges, a dust discharge port on the lower surface of the dust collection box, a wire connected to one end of the guide rod and connected to a fixing plate, a cylinder mounted on one side of the fixing plate and one end connected to the upper part of the dust collection box, and ventilation and heat dissipation vents evenly spaced on the upper surface of the dust collection box.

[0010] The dust collection assembly includes a ventilation duct, one end of which is connected to a dust outlet, and the other end of which is connected to a fan. A collection tank is installed on one side of the fan.

[0011] The above technical solution can effectively prevent the brush roller from scratching the steel belt and affecting its subsequent use, while avoiding the occurrence of static electricity during the dust removal process, and cleaning the brush roller to ensure that the brush roller maintains good cleaning efficiency for magnesium oxide dust.

[0012] Furthermore, a fan-shaped support plate is connected to the outer surface of the winding shaft installed inside the uncoiler body. One end of the winding shaft is connected to a first belt, and the other end of the first belt is connected to a rotating shaft. The rotating shaft passes through a fixed plate, and the fixed plate is connected to the uncoiler body.

[0013] Through the above technical solution, the first belt transmits power, and the unwinding of the steel strip by the drum shaft is used as the prime mover, which is conducive to the integrated operation of the device.

[0014] Furthermore, two brush rollers are provided, and the brush rollers are symmetrically distributed about the transverse center line of the roll shaft.

[0015] The above technical solution allows two brush rollers to clean the upper and lower surfaces of the steel strip, which helps to improve the cleanliness of the steel strip cleaning process.

[0016] Furthermore, the brush roller is made of conductive rubber and is composed of multiple sheet-like structures.

[0017] Through the above technical solution, the brush roller cleans the upper and lower surfaces of the steel strip by rotating. The sheet-like structure helps to ensure full contact between the brush roller and the upper and lower surfaces of the steel strip. Furthermore, the brush roller is made of conductive rubber, which can effectively avoid the occurrence of static electricity during the cleaning process, thereby greatly reducing the occurrence of magnesium oxide dust adsorbing on the outer surface of the brush roller.

[0018] Furthermore, the reciprocating lead screw and the slider are connected by a threaded connection, and the slider and the guide rod are connected by a sliding connection.

[0019] Through the above technical solution, the reciprocating screw drives the slider to move by rotating, so that the slider moves back and forth inside the dust collector. The guide rod can ensure the levelness and stability of the slider during the movement.

[0020] Furthermore, multiple cleaning rollers are provided, and the cleaning rollers are evenly distributed on one side of the slider. The length of the cleaning roller is greater than the distance between the slider and the brush roller, and the cleaning roller is made of metal.

[0021] Through the above technical solution, the slider drives the cleaning roller to reciprocate inside the dust collection box. The cleaning roller moves the brush roller, causing the brush roller to vibrate and causing the magnesium oxide accumulated on the outer surface of the brush roller to fall off. This helps to prevent a large amount of magnesium oxide dust from accumulating on the outer surface of the brush roller, thus ensuring that the brush roller maintains a good cleaning effect. In addition, the cleaning roller transfers the static electricity generated on the surface of the brush roller to the guide rod through the slider. The wire connected to the guide rod is grounded, thereby releasing the static electricity.

[0022] Furthermore, two cleaning sponges are provided, and the cleaning sponges are symmetrically distributed about the transverse center line of the groove. The cleaning sponges are connected to the groove by adhesive bonding.

[0023] With the above technical solution, after the brush roller finishes cleaning the steel belt, the steel belt will pass through the dust removal box and slide out of the slot. The cleaning sponge set in the slot will further wipe and clean the steel belt, and the cleaning sponge can be quickly replaced by tearing.

[0024] Furthermore, the center of the dust discharge port is located on the same vertical line as the center of the dust collection box, and the dust discharge port has a funnel-shaped structure.

[0025] With the above technical solution, the magnesium oxide dust cleaned by the brush roller will fall into the dust collection box. The funnel-shaped dust outlet facilitates the discharge of magnesium oxide dust, thus making it easier to collect magnesium oxide dust in the future.

[0026] Furthermore, each slider is equipped with a scraping component, and each scraping component includes a connecting plate. The slider has a sliding groove, and the connecting plate is slidably connected in the sliding groove. Multiple cleaning rollers on one side of each slider are fixedly connected to a connecting plate.

[0027] Furthermore, each scraping component also includes a connecting drive rod, each connecting drive rod corresponds to a connecting plate, one end of each connecting drive rod is fixedly connected to the corresponding connecting plate, and the other end of each connecting drive rod is provided with a slide rod. The cross-section of each guide rod is rectangular, and each guide rod is provided with a serpentine guide groove. Each slide rod corresponds to a serpentine guide groove, and each slide rod slides in cooperation with the corresponding serpentine guide groove.

[0028] With the above technical solution, when the reciprocating screw rotates, it drives the slider and multiple cleaning rollers to reciprocate along the guide rod. Since each slider is slidably engaged with the serpentine guide groove on the guide rod, while the multiple cleaning rollers reciprocate along the guide rod, they also extend and retract within the slider. This allows the multiple cleaning rollers to reciprocate and extend and retract while simultaneously scraping the dust adhering to the brush roller, further improving the cleaning effect on the brush roller.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] Firstly, this invention effectively cleans the top and bottom surfaces of the steel coil by setting two brush rollers. The brush rollers are equipped with an electrostatic discharge structure, which can prevent the brush rollers from generating static electricity and adsorbing magnesium oxide dust. This prevents the magnesium oxide dust accumulated on the brush rollers from scratching the surface of the grain-oriented silicon steel, thereby improving the technical problem of dust removal efficiency for grain-oriented silicon steel. It not only avoids the occurrence of static electricity during the dust removal process, but also prevents the brush rollers from scratching the steel strip and affecting the production quality of grain-oriented silicon steel.

[0031] Secondly, in this invention, during the process of the brush roller cleaning magnesium oxide dust on the surface of the steel strip by rotation, the rotating shaft and the second belt transmit power, causing the reciprocating screw to drive the cleaning roller connected to the slider to reciprocate inside the dust collection box. The cleaning roller moves the brush roller by reciprocating motion, causing the brush roller to vibrate, which causes the magnesium oxide dust accumulated on the outer surface of the brush roller to fall off. This helps to avoid a large amount of magnesium oxide dust accumulating on the outer surface of the brush roller. In addition, the cleaning roller transfers the static electricity generated on the surface of the brush roller, and transfers the static electricity to the guide rod through the slider. The wire connected to the guide rod is grounded, thereby releasing the static electricity. This helps to avoid the occurrence of static electricity during the dust removal process, thus ensuring that the brush roller achieves a good dust removal effect.

[0032] Thirdly, in this invention, when the reciprocating screw rotates, it also drives the slider and multiple cleaning rollers to reciprocate along the guide rod. Since each slider is slidably engaged with the serpentine guide groove on the guide rod, while the multiple cleaning rollers reciprocate along the guide rod, they also simultaneously extend and retract inside the slider. This allows the multiple cleaning rollers to reciprocate while simultaneously extending and retracting, scraping away the dust adhering to the brush roller and further improving the cleaning effect on the brush roller. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0035] Figure 3 This is another perspective view of the overall structure of the present invention;

[0036] Figure 4 This is a rear view of the overall structure of the present invention;

[0037] Figure 5 This is a schematic cross-sectional view of the dust collector box in this invention;

[0038] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0039] Figure 7 This is a schematic diagram of the connection structure between the second belt and the reciprocating lead screw in this invention;

[0040] Figure 8 This is a schematic diagram of the connection structure between the guide rod and the wire of the present invention;

[0041] Figure 9 This is a schematic diagram of the serpentine guide groove in this invention;

[0042] Figure 10 This is a cross-sectional schematic diagram of the internal structure of the guide rod in this invention;

[0043] Figure 11 This is a side view cross-sectional structural diagram of the dust collector box of the present invention.

[0044] In the diagram: 1. Unwinding machine body; 2. Winding drum shaft; 3. Fan-shaped support plate; 4. Fixing plate; 5. Dust collection box; 6. Rotating shaft; 7. First belt; 8. Brush roller; 9. Second belt; 10. Reciprocating lead screw; 11. Slider; 12. Guide rod; 13. Cleaning roller; 14. Groove; 15. Cleaning sponge; 16. Dust discharge port; 17. Ventilation duct; 18. Fan; 19. Collection tank; 20. Wire; 21. Serpentine guide groove; 22. Sliding groove; 23. Connecting plate; 24. Slide rod; 25. Connecting drive rod; 26. Ventilation and heat dissipation port; 27. Cylinder. Detailed Implementation

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Example 1, in this embodiment of the invention, as follows Figures 1-8As shown, a magnesium oxide dust collection device for CT unwinding includes a dust cleaning assembly. The dust cleaning assembly includes a dust collection box 5, a rotating shaft 6 connected inside the dust collection box 5, a brush roller 8 sleeved on the outer surface of the rotating shaft 6, a second belt 9 sleeved on the outer surface of the rotating shaft 6, a reciprocating screw 10 connected to the other end of the second belt 9, a slider 11 sleeved on the outer surface of the reciprocating screw 10, a guide rod 12 passing through the inside of the slider 11, a cleaning roller 13 connected to the side of the slider 11 facing the brush roller 8, slots 14 are respectively opened on both sides of the dust collection box 5, a cleaning sponge 15 is placed inside the slots 14, a dust discharge port 16 is opened on the lower surface of the dust collection box 5, a wire 20 is connected to one end of the guide rod 12, the wire 20 is connected to a fixing plate 4, a cylinder 27 is installed on one side of the fixing plate 4, one end of the cylinder 27 is connected to the upper part of the dust collection box 5, and ventilation and heat dissipation vents 26 are opened at equal intervals on the upper surface of the dust collection box 5.

[0049] Please see Figures 1-5 The magnesium oxide dust collection device for CT unwinding also includes a dust collection component, which includes a ventilation duct 17. One end of the ventilation duct 17 is connected to the dust outlet 16, and the other end of the ventilation duct 17 is connected to a fan 18. A collection tank 19 is installed on one side of the fan 18.

[0050] It should be noted that the present invention uses a brush roller 8 made of conductive rubber to avoid scratching the steel strip and affecting subsequent use. It also avoids the occurrence of static electricity during the dust removal process and cleans the brush roller 8 to prevent magnesium oxide dust from accumulating on the outer surface of the brush roller 8, so that the brush roller 8 maintains good cleaning efficiency for the steel strip.

[0051] Please see Figures 1-5 Inside the uncoiling machine body 1, a winding shaft 2 is installed. A fan-shaped support plate 3 is connected to the outer surface of the winding shaft 2. One end of the winding shaft 2 is connected to a first belt 7. The other end of the first belt 7 is connected to a rotating shaft 6. The rotating shaft 6 passes through a fixed plate 4. The fixed plate 4 is connected to the uncoiling machine body 1.

[0052] It is worth mentioning that during the uncoiling operation, the fan-shaped support plate 3 supports the steel strip, and the drum shaft 2 drives the fan-shaped support plate 3 to rotate, thereby uncoiling the steel strip. The power is transmitted through the first belt 7. The uncoiling of the steel strip by the drum shaft 2 serves as the prime mover, and also achieves the purpose of cleaning the steel strip later. This is conducive to the integrated operation of the device.

[0053] Please see Figures 5-7 There are two brush rollers 8, which are symmetrically distributed about the transverse center line of the roller shaft 2. The brush rollers 8 are made of conductive rubber and are composed of multiple sheet-like structures.

[0054] It should be noted that the dust collection box 5 has a split structure. The cylinder 27 drives the upper part of the dust collection box 5 to move upward, opening the dust collection box 5 and facilitating the passage of the steel belt through the dust collection box 5 for dust removal. After the steel belt passes through the dust collection box 5, the cylinder 27 then drives the upper part of the dust collection box 5 to move downward and merge with the lower part of the dust collection box 5. The dust collection box 5 can block magnesium oxide dust and prevent dust from flying. The two brush rollers 8 clean the upper and lower surfaces of the steel belt by rotating. The sheet-like structure helps to ensure full contact between the brush rollers 8 and the upper and lower surfaces of the steel belt. In addition, the brush rollers 8 are made of conductive rubber, which can effectively prevent the occurrence of static electricity during the cleaning process, thereby greatly reducing the occurrence of magnesium oxide dust adsorbing on the outer surface of the brush rollers 8.

[0055] Please see Figures 5-8 The reciprocating screw 10 is connected to the slider 11 by a threaded connection, and the slider 11 is connected to the guide rod 12 by a sliding connection. Multiple cleaning rollers 13 are provided, and the cleaning rollers 13 are evenly distributed on one side of the slider 11. The length of the cleaning roller 13 is greater than the distance between the slider 11 and the brush roller 8. The cleaning roller 13 is made of metal material, which is a copper-nickel alloy.

[0056] It is worth mentioning that: the rotating shaft 6 drives the reciprocating screw 10 to rotate via the second belt 9. The reciprocating screw 10 drives the slider 11 to move, which in turn drives the cleaning roller 13 to reciprocate inside the dust collection box 5. The guide rod 12 ensures the horizontality and stability of the slider 11 during the movement. During the movement, the cleaning roller 13 will agitate the brush roller 8, causing the brush roller 8 to vibrate and causing the magnesium oxide accumulated on the outer surface of the brush roller 8 to fall off. This helps to prevent a large amount of magnesium oxide dust from accumulating on the outer surface of the brush roller 8, thus maintaining a good cleaning effect for the brush roller 8. In addition, the cleaning roller 13 transfers the static electricity generated on the surface of the brush roller 8 to the guide rod 12 via the slider 11. The wire 20 connected to the guide rod 12 is grounded, thereby releasing the static electricity.

[0057] Please see Figures 1-4 There are two cleaning sponges 15. The cleaning sponges 15 are symmetrically distributed about the transverse center line of the groove 14. The cleaning sponges 15 are connected to the groove 14 by adhesive bonding.

[0058] It is worth mentioning that after the steel belt is cleaned by the brush roller 8 inside the dust collection box 5, it will slide out from the slot 14 opened on the surface of the dust collection box 5. The cleaning sponge 15 set in the slot 14 will further wipe and clean the steel belt, further improving the cleanliness of the steel belt cleaning. The cleaning sponge 15 can be quickly replaced by tearing.

[0059] Please see Figures 1-5The center of the dust discharge port 16 and the center of the dust collection box 5 are located on the same vertical line, and the dust discharge port 16 has a funnel-shaped structure.

[0060] It should be noted that the magnesium oxide dust cleaned by the brush roller 8 will fall inside the dust collection box 5, and the funnel-shaped dust outlet 16 can effectively prevent the accumulation of magnesium oxide dust, making it easy for the magnesium oxide dust to be quickly discharged through the dust outlet 16. The ventilation and heat dissipation vents 26 on the upper surface of the dust collection box 5 have the function of ventilation and heat dissipation, which can cool down the brush roller 8. After the fan 18 is working, the magnesium oxide dust is collected through the ventilation duct 17 to remove the magnesium oxide dust from the upper surface of the steel strip, and the collected magnesium oxide dust is discharged into the collection storage tank 19, which is conducive to the centralized collection and treatment of magnesium oxide dust.

[0061] Example 2: The difference between this example and Example 1 is as follows, please refer to... Figures 9-10 Each slider 11 is equipped with a scraping component, and each scraping component includes a connecting plate 23. A sliding groove 22 is provided in the slider 11, and the connecting plate 23 is slidably connected in the sliding groove 22. Multiple cleaning rollers 13 provided on one side of each slider 11 are fixedly connected to a connecting plate 23. Each scraping component also includes a connecting drive rod 25, and each connecting drive rod 25 corresponds to a connecting plate 23. One end of each connecting drive rod 25 is fixedly connected to the corresponding connecting plate 23, and the other end of each connecting drive rod 25 is provided with a sliding rod 24. The cross-section of each guide rod 12 is rectangular, and each guide rod 12 is provided with a serpentine guide groove 21. Each sliding rod 24 corresponds to a serpentine guide groove 21, and each sliding rod 24 slides in cooperation with the corresponding serpentine guide groove 21.

[0062] It should be noted that when the reciprocating screw 10 rotates, it also drives the slider 11 and multiple cleaning rollers 13 to reciprocate along the guide rod 12. Since each slider 24 is slidably engaged with the serpentine guide groove 21 opened on the guide rod 12, while the multiple cleaning rollers 13 are reciprocating along the guide rod 12, they will also simultaneously extend and retract inside the slider 11. This allows the multiple cleaning rollers 13 to reciprocate while also extending and retracting back and forth, scraping off the dust attached to the brush roller 8 and further improving the cleaning effect on the brush roller 8.

[0063] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A magnesium oxide dust collecting device at the time of CT unwinding, characterized by, include: A dust cleaning assembly includes a dust collection box (5), a rotating shaft (6) connected inside the dust collection box (5), a brush roller (8) sleeved on the outer surface of the rotating shaft (6), a second belt (9) sleeved on the outer surface of the rotating shaft (6), a reciprocating screw (10) connected to the other end of the second belt (9), a slider (11) sleeved on the outer surface of the reciprocating screw (10), a guide rod (12) passing through the inside of the slider (11), and a cleaning roller (13) connected to the side of the slider (11) facing the brush roller (8). Multiple cleaning rollers (13) are provided. The cleaning rollers (13) are evenly distributed on one side of the slider (11). The length of the cleaning roller (13) is greater than the distance between the slider (11) and the brush roller (8). The cleaning roller (13) is made of metal. Each slider (11) is provided with a scraping component, and each scraping component includes a connecting plate (23). A sliding groove (22) is provided in the slider (11), and the connecting plate (23) is slidably connected in the sliding groove (22). Multiple cleaning rods (13) provided on one side of each slider (11) are fixedly connected to a connecting plate (23). Each of the scraping components further includes a connecting drive rod (25), each connecting drive rod (25) corresponds to a connecting plate (23), one end of each connecting drive rod (25) is fixedly connected to the corresponding connecting plate (23), and the other end of each connecting drive rod (25) is provided with a slide rod (24). The cross section of each guide rod (12) is rectangular, and each guide rod (12) is provided with a serpentine guide groove (21). Each slide rod (24) corresponds to a serpentine guide groove (21), and each slide rod (24) slides in cooperation with the corresponding serpentine guide groove (21). The dust collector (5) has slots (14) on both sides, and a cleaning sponge (15) is placed inside the slots (14). The dust collector (5) has a dust discharge port (16) on its lower surface. One end of the guide rod (12) is connected to a wire (20), which is connected to the fixing plate (4). A cylinder (27) is installed on one side of the fixing plate (4), and one end of the cylinder (27) is connected to the upper part of the dust collector (5). The upper surface of the dust collector (5) has ventilation and heat dissipation vents (26) at equal intervals. Two cleaning sponges (15) are provided. The cleaning sponges (15) are symmetrically distributed about the transverse center line of the groove (14). The cleaning sponges (15) and the groove (14) are connected by adhesive bonding. The center of the dust discharge port (16) and the center of the dust collection box (5) are located on the same vertical line, and the dust discharge port (16) has a funnel-shaped structure; The dust collection assembly includes a ventilation duct (17), one end of which is connected to a dust outlet (16), and the other end of which is connected to a fan (18). A collection tank (19) is installed on one side of the fan (18).

2. The magnesium oxide dust collecting device for CT unwinding according to claim 1, characterized by A fan-shaped support plate (3) is connected to the outer surface of the winding shaft (2) installed inside the unwinding machine body (1). One end of the winding shaft (2) is connected to a first belt (7), and the other end of the first belt (7) is connected to a rotating shaft (6). The rotating shaft (6) passes through a fixed plate (4), and the fixed plate (4) is connected to the unwinding machine body (1).

3. The magnesium oxide dust collection device for CT unwinding according to claim 2, characterized in that, Two brush rollers (8) are provided, and the brush rollers (8) are symmetrically distributed about the transverse center line of the roller shaft (2).

4. The magnesium oxide dust collection device for CT unwinding according to claim 3, characterized by The brush roller (8) is made of conductive rubber and is composed of multiple sheet-like structures.

5. The magnesium oxide dust collection device for CT unwinding according to claim 1, characterized by The reciprocating lead screw (10) and the slider (11) are connected by a threaded connection, and the slider (11) and the guide rod (12) are connected by a sliding connection.

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