Hot steel plate blank surface cleaning device and cleaning method thereof

Abstract

The invention relates to the technical field of hot steel plate blank surface cleaning, in particular to a hot steel plate blank surface cleaning device and a cleaning method thereof.The device comprises supporting feet, a support, a support, a cleaning assembly, an adsorption assembly, a transportation assembly and a driving assembly; a plurality of supporting legs are fixedly installed at the bottoms of the two symmetrical supports respectively, symmetrical supports are fixedly installed at the tops of the two symmetrical supports respectively, the multiple sweeping assemblies are fixedly installed between the two supports respectively, and the multiple adsorption assemblies are fixedly installed on the supports respectively. The conveying assembly is fixedly installed between the two supports and located below the sweeping assembly and the adsorption assembly, and the driving assembly is fixedly installed on one side of any support. According to the hot steel plate blank cleaning device, when a hot steel plate blank is cleaned, generated chippings, impurities and dust are prevented from floating in the air, and pollution to the air and harm to the body health of workers are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot steel plate slab surface cleaning, in particular to a hot steel plate slab surface cleaning device and a cleaning method thereof. BACKGROUND

[0002] In the steel production and processing link, the surface pretreatment of the steel plate slab is a key process to ensure the quality and production efficiency of the subsequent process. Because the surface of the slab is easy to attach iron oxide scale, sand particles, dust and other impurities during the early storage, transportation and preliminary processing, if these impurities are not thoroughly cleaned, it will not only cause the heat efficiency of the heating furnace to decrease and the energy consumption to increase significantly, but also cause defects such as pitting and scratches on the surface of the steel plate in the subsequent rolling process, directly affecting the surface quality and mechanical properties of the finished steel plate.

[0003] The cleaning means is mainly manual operation, and the operator needs to hold a shovel, a steel wire brush and other tools to manually scrape, or use a grinding wheel and an electric steel wire brush for local polishing. However, when facing large-area slabs, not only is the cleaning efficiency low and the work intensity high, but it is also difficult to ensure the uniformity and thoroughness of cleaning. The existing technology discloses a solution, such as Chinese patent CN218079206U, published on December 20, 2022, which discloses a hot steel plate slab surface cleaning device having a gantry, which is placed above the slab conveying roller, and the gantry is made of two vertical support frames and a cross beam track. A moving seat is mounted on the cross beam track, which can move on the cross beam track. Two lifting cylinders are fixedly mounted on the moving seat downward, and the piston rods of the two lifting cylinders are arranged downward. A steel brush fixing plate is connected to the lower ends of the piston rods of the two lifting cylinders. A steel wire brush is fixedly mounted on the lower end face of the steel brush fixing plate, which is made of high-temperature resistant composite material. The invention solves the problem of cleaning large-area slabs.

[0004] However, whether manual polishing or polishing by a mechanical steel wire brush, debris, impurities and dust will be generated in the polishing process, which will float in the air, affecting the quality of the air and seriously harming the health of workers. SUMMARY

[0005] The technical problem to be solved by the present application is to solve the problem that debris and impurities generated during the cleaning of the hot steel plate slab will float in the air, affecting the quality of the air and seriously harming the health of workers. The present application prevents debris, impurities and dust generated during the cleaning of the hot steel plate slab from floating in the air, avoiding air pollution and harm to the health of workers.

[0006] To solve the above technical problems, the present application provides the following technical solutions: A hot steel slab surface cleaning device, comprising: a foot, a support, a support, a cleaning assembly, an adsorption assembly, a transport assembly and a drive assembly; two mutually symmetrical said support bottom is respectively fixedly installed with a plurality of feet, two mutually symmetrical said support top is respectively fixedly installed with mutually symmetrical support, a plurality of said cleaning assembly is respectively fixedly installed between two supports, a plurality of said adsorption assembly is respectively fixedly installed on the support, and is arranged with the cleaning assembly mutually interval, the transport assembly is fixedly installed between two supports, and the transport assembly is located below the cleaning assembly and adsorption assembly, the drive assembly is fixedly installed on one side of any one support; The drive assembly drives the cleaning assembly to rotate and cleans the surface of the hot steel slab. At the same time, the adsorption assembly is driven to rotate, and the impurities and dust generated by cleaning are adsorbed and collected.

[0007] As a preferred scheme of the hot steel slab surface cleaning device, wherein: the cleaning assembly comprises a rotating shaft, a sleeve, a first rotating wheel, a rotating ring, a rotating drum, a brush, a compression spring and a limiting block; a plurality of rotating shafts are rotatably installed between the mutually symmetrical supports, and the two ends of the rotating shafts respectively penetrate the two side supports; a sleeve is fixedly installed on each rotating shaft; a first rotating wheel is fixedly installed on one end of each rotating shaft; a plurality of first rotating wheels are fixedly installed on the other end of each rotating shaft; a rotating ring is fixedly installed on each sleeve; a rotating drum is fixedly installed on each rotating ring; a brush is arranged in a ring around the axis on each rotating drum; a compression spring is fixedly installed on each brush; a limiting block is fixedly installed on the inner side of each brush in the rotating drum; and the limiting block is in contact with the circumferential outer wall of the rotating ring.

[0008] As a preferred scheme of the hot steel plate slab surface cleaning device, the adsorption assembly comprises a box body, an adsorption port, a rotating shaft, a second rotating wheel, a rotating blade, a partition plate, a collection box, a communication box and a filter screen; a plurality of box bodies are fixedly installed on the support respectively, a plurality of adsorption ports are fixedly installed on one side of the box body respectively, a rotating shaft is rotatably installed in the box body respectively, a second rotating wheel is fixedly installed at one end of the rotating shaft respectively, a plurality of rotating blades are linearly arranged along the axis of the rotating shaft, a plurality of partition plates are fixedly installed in the box body respectively, the box body is divided into a plurality of cavities by the partition plates, the rotating blades are located in the cavities respectively, a collection box is fixedly installed on the top of the box body respectively, a plurality of communication boxes are fixedly installed on one side of the collection box respectively, the communication boxes are communicated with the cavities respectively, and a filter screen is fixedly installed on the top of the collection box respectively.

[0009] As a preferred scheme of the hot steel plate slab surface cleaning device, the transport assembly comprises a transport shaft, a transport rotating wheel and a transport roller; a plurality of transport shafts are rotatably installed between the two supports, and the transport shafts are located below the cleaning assembly; a transport rotating wheel is fixedly installed at one end of the transport shaft respectively, and a transport roller is fixedly installed on the transport shaft respectively.

[0010] As a preferred scheme of the hot steel plate slab surface cleaning device, the driving assembly comprises a first motor, a second motor, a first belt, a third rotating wheel, a second belt, a fourth rotating wheel, a fifth belt, a sixth belt and a seventh belt; the first motor is fixedly installed on the support, the fourth rotating wheel is fixedly installed at the end of the transport shaft on one end of the support, and the fourth rotating wheel is located outside the transport rotating wheel; the fourth rotating wheel is connected with the first motor through the fifth belt; the sixth belt is rotatably installed on the transport rotating wheel on one side of the support; the second motor is fixedly installed on the support, and the second motor is located above the first motor; the third rotating wheel is fixedly installed at the end of the rotating shaft on one end of the support, and the third rotating wheel is located outside the first rotating wheel; the third rotating wheel is connected with the second motor through the first belt; a plurality of second belts are rotatably installed on two adjacent first rotating wheels on one side of the support respectively; and a plurality of seventh belts are connected with the first rotating wheel and the adjacent second rotating wheel on the other side of the support respectively.

[0011] As a preferred scheme of the hot steel plate slab surface cleaning device, the cavity in the box body is an arc-shaped cavity, and the rotating blade is an arc-shaped structure.

[0012] As a preferred scheme of the hot steel plate slab surface cleaning device, the brush is a flexible and detachable structure.

[0013] As a preferred scheme of the hot steel plate slab surface cleaning device, the distance between the suction port and the conveying roller is greater than the thickness of the hot steel plate slab.

[0014] As a preferred scheme of the hot steel plate slab surface cleaning device, the first support plate and the second support plate are arranged on the legs of the one end of the support, and the first motor is fixedly connected with the first support plate, and the second motor is fixedly connected with the second support plate.

[0015] A hot steel plate slab surface cleaning method comprises the following steps: S1: the hot steel plate slab is placed on the conveying roller, the conveying roller is driven to rotate by the first motor, and the hot steel plate slab is moved to the bottom of the cleaning assembly and the suction assembly; S2: the plurality of rotating drums on the cleaning assembly are driven to rotate at high speed by the second motor, and the brushes clean the hot steel plate slab; S3: the rotating speed of the rotating drum is controlled, so that the brushes extend outward under the action of centrifugal force, the distance between the brushes and the hot steel plate slab is reduced, and the contact area with the hot steel plate slab is increased; S4: in the cleaning process, the rotating blades are driven to rotate at high speed by the rotating shaft of the suction assembly, and negative pressure is generated at the suction port, so that the impurities and dust after cleaning are adsorbed; S5: the impurities and dust after adsorption enter the collecting box through the communication box and are collected in the collecting box.

[0016] The beneficial effects of the present application are as follows: 1: the conveying assembly, the cleaning assembly and the suction assembly are arranged on the support, the conveying assembly, the cleaning assembly and the suction assembly are cooperated with each other, the debris and impurities generated on the surface of the hot steel plate slab are adsorbed by the suction assembly during the cleaning of the cleaning assembly on the surface of the hot steel plate slab, the generated debris, impurities and dust are prevented from floating in the air, and the air pollution and harm to the health of workers are avoided.

[0017] 2: the cleaning assembly and the suction assembly are combined, driven by the same power source, the cleaning assembly and the suction assembly are cooperated together, so that the debris, impurities and dust do not float in the air during the cleaning process, and the surface of the hot steel plate slab can be cleaned several times through the sequential arrangement of the plurality of cleaning assemblies and suction assemblies, so that the efficiency of the hot steel plate slab surface cleaning is greatly improved.

[0018] 3、The present application is characterized in that the brush and the compression spring are arranged in the cleaning assembly, the centrifugal force generated by the rotation of the cleaning assembly makes the brush extend outward and reduces the distance between the brush and the surface of the hot steel slab, increases the contact area with the hot steel slab, and different brushes of different materials can be replaced according to different hot steel slabs, thereby greatly improving the cleaning effect and efficiency of the surface of different hot steel slabs. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0020] Figure 2 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0021] Figure 3 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0022] Figure 4 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0023] Figure 5 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0024] Figure 6 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0025] Figure 7 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0026] Figure 8 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0027] Figure 9 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0028] Figure 10 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present disclosure.

[0029] Reference numerals: 1. Support leg; 11. First support plate; 12. Second support plate; 2. Bracket; 3. Support; 4. Cleaning assembly; 41. Rotating shaft; 42. Sleeve; 43. First rotating wheel; 44. Rotating ring; 45. Rotating drum; 46. Brush; 47. Compression spring; 48. Limiting block; 5. Adsorption assembly; 51. Box; 511. Cavity; 52. Adsorption port; 53. Rotating shaft; 54. Second rotating wheel; 55. Rotating blade; 56. Partition; 57. Collection box; 58. Connecting box; 59. Filter screen; 6. Transport assembly; 61. Transport shaft; 62. Transport rotating wheel; 63. Transport roller; 7. Drive assembly; 71. First motor; 72. Second motor; 73. First belt; 74. Third rotating wheel; 75. Second belt; 76. Fourth rotating wheel; 77. Fifth belt; 78. Sixth belt; 79. Seventh belt. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] like Figures 1 to 10 As shown, a surface cleaning device for hot steel slab includes: legs 1, brackets 2, supports 3, cleaning components 4, adsorption components 5, transport components 6, and drive components 7; multiple legs 1 are fixedly installed at the bottom of two mutually symmetrical brackets 2, and mutually symmetrical supports 3 are fixedly installed at the top of two mutually symmetrical brackets 2, multiple cleaning components 4 are fixedly installed between the two supports 3, multiple adsorption components 5 are fixedly installed on the brackets 2 and are arranged at intervals with the cleaning components 4, the transport components 6 are fixedly installed between the two brackets 2 and are located below the cleaning components 4 and adsorption components 5, and the drive components 7 are fixedly installed on one side of any one of the brackets 2; The drive assembly 7 drives the cleaning assembly 4 to rotate and cleans the surface of the hot steel plate blank. At the same time, it drives the adsorption assembly 5 to rotate and adsorb and collect the impurities and dust generated during cleaning.

[0032] The "symmetrical frame" design ensures overall stability: two identical and parallel brackets 2 form the main support skeleton of the device. Multiple feet 1 are fixedly installed at the bottom of each bracket 2. Anti-slip rubber pads or pre-drilled bolt holes can be added to the bottom of the feet 1 to prevent the device from shifting due to vibration during operation. The supports 3 are made of high-strength metal and have a block structure. They are fastened to the top surface of the brackets 2 with high-strength bolts, and the supports 3 on both sides of the brackets 2 are completely aligned in height and horizontal position.

[0033] Two ends of each cleaning assembly 4 are fixedly connected with corresponding seats 3 on the two side supports 2 respectively, and are detachably assembled through bolts, which is convenient for later maintenance and replacement, and can also ensure that the cleaning assembly 4 will not deviate from the preset position due to vibration during high-speed operation. The number of the cleaning assembly 4 can be flexibly set according to the length of the slab and the cleaning demand, and is arranged in sequence along the transport direction of the slab. The adsorption assembly 5 cooperated with the cleaning assembly 4 is installed on the support 2 in a "interval type layout": one adsorption assembly 5 is directly matched with the rear of each cleaning assembly 4, so that the impurities cleaned by the cleaning assembly 4 can be adsorbed by the adsorption assembly 5 in the first time, avoiding the impurities from falling to the transport assembly 6 or the surface of the slab to cause secondary pollution.

[0034] The transport assembly 6 is a "conveying channel" for moving the slab, and is installed at a position penetrating the core working area of the device: the entire transport assembly 6 is fixedly installed horizontally between the two supports 2, and the top surface height of the transport assembly 6 is strictly lower than the lowest position of the bristles of the cleaning assembly 4 and the lowest position of the adsorption port 52 of the adsorption assembly 5. When the hot steel slab is placed on the transport assembly 6, it can be stably driven forward by the transport assembly 6, and can form a reasonable working gap with the bristles of the cleaning assembly 4 and the adsorption port 52 of the adsorption assembly 5, so as to ensure that the cleaning and adsorption work can accurately cover the surface of the slab.

[0035] During operation, the driving assembly 7 is first operated as a power source to synchronously drive the cleaning assembly 4 and the adsorption assembly 5 to work through a preset transmission path: on the one hand, the power output by the driving assembly 7 drives the rotating shaft 41 in the cleaning assembly 4 to rotate at high speed through belt transmission, and the rotating shaft 41 in turn drives the rotating drum 45 and the brush 46 on the cleaning assembly 4 to rotate synchronously. Under the action of centrifugal force, the brush 46 extends radially outward along the rotating drum 45, tightly contacts the surface of the hot steel slab moving below, and performs strong cleaning on the scale, dust and debris on the surface of the slab through the high-speed rotating bristles, so as to ensure that the impurities on the surface of the slab are effectively stripped; on the other hand, the driving assembly 7 simultaneously drives the rotating shaft 53 and the rotating blade 55 in the adsorption assembly 5 to rotate at high speed through another set of transmission components. The rotating blade 55 forms a negative pressure environment in the closed cavity 511 of the adsorption assembly 5, the adsorption port 52 at the bottom of the cavity 511 accurately aligns with the working area of the cleaning assembly 4, and the impurities and dust generated in the cleaning process are quickly sucked into the cavity 511, and then the impurities enter the collection box 57 through the communication pipeline with the airflow, so as to realize the centralized collection of the impurities. The filter screen 59 in the collection box 57 filters the fine dust in the airflow, so as to avoid the leakage of the impurities to cause secondary pollution of the environment.

[0036] As Figure 2 , Figure 3 , Figure 4 , Figure 9 and Figure 10As shown, the cleaning assembly 4 comprises a rotating shaft 41, a sleeve 42, a first rotating wheel 43, a rotating ring 44, a rotating drum 45, a brush 46, a compression spring 47, and a limiting block 48. The rotating shafts 41 are rotatably installed between the mutually symmetrical supports 3, and the two ends of the rotating shafts 41 penetrate through the two supports 3 respectively. The sleeve 42 is fixedly installed on the rotating shaft 41. The sleeves 42 are located between the two supports 3. The first rotating wheel 43 is fixedly installed on one end of the rotating shaft 41. The first rotating wheel 43 is fixedly installed on the other end of the rotating shaft 41. The rotating ring 44 is fixedly installed on the sleeve 42. The rotating drum 45 is fixedly installed on the rotating ring 44. The brush 46 is arranged in a ring shape around the axis of the rotating drum 45. The brush 46 penetrates through the rotating drum 45. The compression spring 47 is fixedly installed on the brush 46. The compression spring 47 is located inside the rotating drum 45. The limiting block 48 is fixedly installed on the inner side of the brush 46 in the rotating drum 45. The limiting block 48 is in contact with the circumferential outer wall of the rotating ring 44.

[0037] The two ends of the rotating shaft 41 penetrate through the preset mounting holes of the two supports 3. The contact part of the rotating shaft 41 and the support 3 is rotatably connected through a bearing. This not only reduces the friction resistance when the rotating shaft 41 rotates at high speed, but also avoids the abrasion of the support 3 and the rotating shaft 41 caused by direct friction, thereby ensuring the long-term stable operation of the cleaning assembly 4.

[0038] The sleeve 42 is fixedly installed on the rotating shaft 41. All the sleeves 42 are strictly limited between the two supports 3. The sleeve 42 and the rotating shaft 41 are fixed by key connection. This ensures that the sleeve 42 can be rotated synchronously when the rotating shaft 41 rotates. The length of the sleeve 42 is matched with the distance between the supports 3, so as to avoid collision with the supports 3 during operation. The first rotating wheel 43 is installed on one end of the rotating shaft 41 close to the driving assembly 7. The first rotating wheel 43 is fixedly installed on the other end of the rotating shaft 41. This is a "differentiated layout". The first rotating wheel 43 is used to realize the synchronous rotation of the rotating shaft 41 and drive the brush 46 to rotate for cleaning.

[0039] The rotating ring 44 is fixedly installed on the outer side wall of the sleeve 42 by bolt fastening. The axis of the rotating ring 44 is completely coincided with the axes of the sleeve 42 and the rotating shaft 41, so as to ensure that the rotating ring 44 can be synchronously and coaxially rotated when the sleeve 42 rotates. The rotating drum 45 is fixedly installed on the outer side of the rotating ring 44. The rotating drum 45 and the rotating ring 44 are coaxially fixed. The length of the rotating drum 45 is determined according to the width of the slab. The inner wall of the rotating drum 45 and the circumferential outer wall of the rotating ring 44 have a preset gap, which reserves installation space for the telescopic structure of the brush 46.

[0040] A plurality of brush 46 mounting holes are uniformly arranged on the circumferential wall of each rotating drum 45 in a ring shape with the axis of the rotating drum 45 as the center, and a plurality of brushes 46 pass through the mounting holes respectively, the end of the brush 46 towards the one end of the slab is processed into a wear-resistant brush structure, and the end inside the rotating drum 45 extends into the inner cavity of the rotating drum 45; in order to realize the radial expansion and contraction function of the brush 46, the rod body of each brush 46 inside the rotating drum 45 is respectively sleeved and fixed with a compression spring 47, one end of the compression spring 47 abuts against the inner wall of the rotating drum 45, and the other end abuts against the limiting block 48 at the bottom of the brush 46, in the initial state, the compression spring 47 is in a slightly compressed state, the brush 46 is pulled to the inside of the rotating drum 45, and the outside end of the brush 46 is flush with the outer wall of the rotating drum 45; the diameter of the limiting block 48 is greater than the hole diameter of the brush 46 mounting hole on the rotating drum 45, and the outer wall of the limiting block 48 is in contact with the circumferential outer wall of the rotating ring 44, which not only avoids that the brush 46 is completely retracted into the inside of the rotating drum 45 under the action of the compression spring 47, but also ensures that the brush 46 always maintains the radial movement track of the rotating drum 45 during the expansion and contraction process through the contact between the limiting block 48 and the outer wall of the rotating ring 44, avoiding deviation or jamming.

[0041] When the cleaning assembly 4 is started, the rotating shaft 41 drives the sleeve 42, the rotating ring 44 and the rotating drum 45 to rotate synchronously at high speed, the centrifugal force generated by the rotation of the rotating drum 45 acts on the brush 46 and the limiting block 48, when the centrifugal force is greater than the elastic potential energy of the compression spring 47, the brush 46 overcomes the tension of the compression spring 47 and extends radially outward along the rotating drum 45 until the bristles on the outside of the brush 46 contact the surface of the hot steel slab; if there are protrusions or uneven areas on the surface of the slab, the brush 46 will be subjected to a reverse pressure, which pushes the brush 46, the limiting block 48 and the compression spring 47, so that the brush 46 is appropriately retracted inward, thereby realizing self-adaptive fitting cleaning of the surface of the slab, which not only ensures the cleaning intensity, but also avoids damage to the surface of the slab or the brush 46 caused by hard contact, and finally realizes efficient and uniform cleaning of impurities on the surface of the slab through high-speed rotation and self-adaptive adjustment of multiple groups of brushes 46.

[0042] As Figures 3 to 7As shown, the adsorption assembly 5 includes a box 51, an adsorption port 52, a rotating shaft 53, a second rotating wheel 54, a rotating blade 55, a partition plate 56, a collection box 57, a communication box 58, and a filter screen 59; a plurality of boxes 51 are fixedly installed on the support 2, a plurality of adsorption ports 52 are fixedly installed on one side of the plurality of boxes 51, a plurality of rotating shafts 53 are rotatably installed in the plurality of boxes 51, a plurality of second rotating wheels 54 are fixedly installed at one end of the plurality of rotating shafts 53, a plurality of rotating blades 55 are linearly arranged along the axis of the plurality of rotating shafts 53, a plurality of partition plates 56 are fixedly installed in the plurality of boxes 51, and the plurality of partition plates 56 divide the plurality of boxes 51 into a plurality of cavities 511, the plurality of rotating blades 55 are located in the plurality of cavities 511, a plurality of collection boxes 57 are fixedly installed on the top of the plurality of boxes 51, a plurality of communication boxes 58 are fixedly installed on one side of the plurality of collection boxes 57, and the plurality of communication boxes 58 are in communication with the plurality of cavities 511, and a plurality of filter screens 59 are fixedly installed on the top of the plurality of collection boxes 57.

[0043] The number of boxes 51 corresponds to the number of groups of the cleaning assembly 4, ensuring that the impurities generated by each group of the cleaning assembly 4 can be accurately adsorbed. The box 51 is fixedly installed on the inner side wall of the two side supports 2 by bolts, and the bottom of the box 51 is kept at a predetermined distance from the top surface of the transportation assembly 6, ensuring that the adsorption port 52 can accurately align with the working area of the cleaning assembly 4, while avoiding collision between the box 51 and the moving slab. Each box 51 has an adsorption port 52 fixedly installed on the side facing the cleaning assembly 4, and the opening is directed towards the brush 46 of the cleaning assembly 4. The diameter of the adsorption port 52 gradually increases along the direction of impurity suction, which improves the impurity suction efficiency and reduces air resistance, ensuring that the impurities can smoothly enter the interior of the box 51.

[0044] The two ends of the rotating shaft 53 are rotatably connected to the side wall of the box 51 through bearings, which ensures the stability of the rotating shaft 53 during high-speed rotation and reduces friction loss. One second rotating wheel 54 is fixedly installed at one end of each rotating shaft 53, and the second rotating wheel 54 is connected to the first rotating wheel 43 at the other end of the rotating shaft 41 of the cleaning assembly 4 through the seventh belt 79. When the rotating shaft 41 of the cleaning assembly 4 rotates, the second rotating wheel 54 is driven to rotate synchronously through the seventh belt 79, thereby driving the rotating shaft 53 to rotate at high speed, achieving synchronous power transmission between the adsorption assembly 5 and the cleaning assembly 4, and ensuring that the operating rhythm of the two is completely matched.

[0045] In order to improve the negative pressure adsorption efficiency, a plurality of rotating blades 55 are arranged linearly along the axis direction on each rotating shaft 53, the rotating blades 55 adopt an "arc blade" structure design, the bending direction of the blades is consistent with the rotating direction of the rotating shaft 53, which is to ensure that the air flow can be pushed more efficiently during rotation, and the negative pressure effect is enhanced. At the same time, a plurality of partitions 56 are fixedly installed inside each box body 51, the partitions 56 are closely attached to the inner wall of the box body 51, forming a closed separation structure, and the inside of the box body 51 is separated into a plurality of independent cavities 511 along the length direction, each cavity 511 is an independent negative pressure unit, avoiding the interference of air flow in different areas, ensuring that a stable and strong negative pressure can be formed in each cavity 511, thereby improving the overall adsorption efficiency.

[0046] A collecting box 57 is fixedly installed on the top of each box body 51, one end of the communication box 58 is communicated with the inside of the collecting box 57, and the other end is communicated with the plurality of cavities 511 of the box body 51 one by one. When the impurities in the cavity 511 are sucked by the negative pressure, the impurities enter the communication box 58 along the outlet at the top of the cavity 511, and then enter the collecting box 57 through the flow guiding effect of the communication box 58, and are stored in the collecting box 57 for centralized storage, realizing efficient transportation and collection of impurities.

[0047] In order to prevent the collected impurities from leaking with the air flow, and at the same time ensure the cleanliness of the discharged air, a filter screen 59 is fixedly installed on the top of each collecting box 57. When the air flow carrying impurities enters the collecting box 57, the impurities are intercepted by the filter screen 59 and remain in the collecting box 57, and the filtered clean air is discharged outside the collecting box 57, which not only avoids the secondary pollution of the environment caused by the leakage of impurities, but also maintains the air pressure balance inside the collecting box 57, ensuring the continuous and stable operation of the adsorption system.

[0048] As shown in Figure 8 The transportation assembly 6 includes a transportation shaft 61, a transportation rotating wheel 62 and a transportation roller 63. The plurality of transportation shafts 61 are rotatably installed between the two supports 2, and the plurality of transportation shafts 61 are located below the cleaning assembly 4. The plurality of transportation shafts 61 are fixedly installed with the transportation rotating wheels 62 at one end respectively, and the plurality of transportation shafts 61 are fixedly installed with the transportation rollers 63 respectively.

[0049] The two ends of the transportation shaft 61 are rotatably connected with the pre-installed bearing seat on the inner side of the support 2 through high-strength bearings. All the transportation shafts 61 are kept at the same horizontal height, and the axes are parallel to each other. The top surface of the transportation shaft 61 keeps a predetermined safety distance from the lowest extension position of the brush 46 at the bottom of the cleaning assembly 4, so that when the hot steel plate blank is placed on the transportation assembly 6, it can be accurately located within the working range of the cleaning assembly 4, so that the brush 46 can fully contact the surface of the plate blank for cleaning, and the transportation shaft 61 and the transportation roller 63 can avoid collision and interference with the cleaning assembly 4, ensuring the safety of the overall operation of the device.

[0050] The plurality of transport shafts 61 are fixedly installed with a transport gear 62 at one end close to the drive assembly 7. When one of the transport shafts 61 is rotated under the drive of the drive assembly 7, power can be synchronously transmitted to all the transport shafts 61 through the transmission of the sixth belt 78, so as to realize the synchronous rotation of the plurality of transport shafts 61.

[0051] In addition, in order to improve the load bearing and anti-skid ability of the transport roller 63 on the slab, the outer circumferential surface of the transport roller 63 is usually treated by knurling or spraying wear-resistant coating to avoid the sliding of the slab due to inertia during the conveying process. The wear-resistant coating can enhance the wear resistance of the surface of the transport roller 63 and prolong the service life, which is especially suitable for the long-term conveying of hot steel slabs.

[0052] When the transport assembly 6 is started, the first motor 71 drives the fourth gear 76 at one end of one of the transport shafts 61 to rotate, and the transport shaft 61 synchronously rotates and drives the transport gear 62 thereon to rotate. Through the transmission of the sixth belt 78, the transport gears 62 on all the transport shafts 61 are synchronously linked, and then drive all the transport shafts 61 and the transport rollers 63 to rotate in the same direction. At this time, the hot steel slab is placed on the transport rollers 63, and the transport rollers 63 drive the slab by surface friction to move along the transport direction at a stable and uniform speed, until the slab sequentially passes through the working areas of all the cleaning assemblies 4 and the adsorption assemblies 5, and completes the entire cleaning process.

[0053] As shown in Figure 2 and Figure 3 , the drive assembly 7 includes a first motor 71, a second motor 72, a first belt 73, a third gear 74, a second belt 75, a fourth gear 76, a fifth belt 77, a sixth belt 78, and a seventh belt 79. The first motor 71 is fixedly installed on the support 2, the fourth gear 76 is fixedly installed at one end of the transport shaft 61 on one end of the support 2, and the fourth gear 76 is located outside the transport gear 62. The fourth gear 76 is connected with the first motor 71 through the fifth belt 77, the sixth belt 78 is rotatably installed on the transport gear 62 on one side of the support 2, the second motor 72 is fixedly installed on the support 2 and located above the first motor 71, the third gear 74 is fixedly installed at one end of the rotating shaft 41 on one end of the support 2 and located outside the first gear 43, the third gear 74 is connected with the second motor 72 through the first belt 73, a plurality of second belts 75 are rotatably installed on two adjacent first gears 43 on one side of the support 2, and a plurality of seventh belts 79 are connected with the first gear 43 and the adjacent second gear 54 on the other side of the support 2.

[0054] The output shaft of the first motor 71 is parallel to the axial direction of the conveying shaft 61. The fourth rotating wheel 76 is fixedly installed at one end of the support 2 close to the first motor 71 and at the end of one conveying shaft 61. The fifth belt 77 serves as a power link between the first motor 71 and the fourth rotating wheel 76. When the first motor 71 is started, the output shaft directly drives the fourth rotating wheel 76 to rotate through the fifth belt 77, thereby driving the corresponding conveying shaft 61 to rotate. The sixth belt 78 connects all the conveying rotating wheels 62. When the first motor 71 drives the fourth rotating wheel 76 of one conveying shaft 61 and the conveying rotating wheel 62 to rotate through the fifth belt 77, the conveying rotating wheel 62 synchronously transmits power to other conveying rotating wheels 62 through the sixth belt 78, so that all the conveying shafts 61 and the conveying rollers 63 rotate in the same direction and at the same speed, thereby providing power guarantee for stable conveying of the slab.

[0055] The second motor 72 is fixed on the support 2 by bolts. The third rotating wheel 74 is fixedly installed at one end of the support 2 close to the second motor 72 and at the end of one rotating shaft 41. The first belt 73 is sleeved between the output wheel of the second motor 72 and the third rotating wheel 74. When the second motor 72 is started, the output shaft drives the third rotating wheel 74 to rotate through the first belt 73, thereby driving the corresponding rotating shaft 41 to rotate and providing initial power for the cleaning assembly 4.

[0056] Each second belt 75 corresponds to a group of adjacent first rotating wheels 43. When one rotating shaft 41 rotates under the drive of the first belt 73, the first rotating wheel 43 at the end of the rotating shaft 41 drives the first rotating wheel 43 of the adjacent rotating shaft 41 through the second belt 75, thereby realizing synchronous rotation of all the rotating shafts 41 and ensuring synchronous operation of the groups of brushes 46 of the cleaning assembly 4.

[0057] Each seventh belt 79 is sleeved on the first rotating wheel 43 of the rotating shaft 41 and the second rotating wheel 54 of the adsorption assembly 5. When the rotating shaft 41 drives the first rotating wheel 43 to rotate, the second rotating wheel 54 and the rotating shaft 53 of the adsorption assembly 5 are synchronously driven to rotate through the seventh belt 79, thereby realizing “power homologous and synchronous operation” of the cleaning assembly 4 and the adsorption assembly 5 and ensuring that the impurities generated by cleaning can be immediately adsorbed to avoid secondary pollution.

[0058] As shown in Figure 6 The cavity 511 inside the box body 51 is an arc-shaped cavity, and the rotating blade 55 is an arc-shaped structure.

[0059] The partition plate 56 divides the box 51 into multiple cavities 511, and the cavity 511 is a cavity structure with a "smooth arc transition" along the axis direction of the rotating shaft 53. The inner wall curve of the arc cavity is highly consistent with the trajectory curve of the rotating blade 55 during rotation, that is, the radius of the arc cavity is slightly larger than the maximum rotating radius of the rotating blade 55, which can maximize the adaptation to the motion trajectory of the arc rotating blade 55, reduce the air flow friction with the inner wall of the cavity during blade rotation, and reduce the air flow resistance loss. The arc-shaped inner wall can also guide the smooth flow of the air flow along the cavity curve, avoid air flow turbulence caused by irregular cavity shape, and thus ensure uniform distribution of negative pressure in the cavity 511, preventing local negative pressure dead angle from affecting the adsorption effect.

[0060] The bending direction of the blade is completely consistent with the rotating direction of the rotating shaft 53, which ensures that the blade can effectively push the air flow during rotation and avoids the increase of blade weight and the rise of rotating load caused by excessive arc height. When the rotating shaft 53 drives the arc rotating blade 55 to rotate at high speed, the blade moves along the trajectory of the inner wall of the arc cavity. Since the blade arc is highly consistent with the cavity arc, the blade can "squeeze" and "push" the air in the cavity to the maximum extent during rotation. The impurities sucked into the cavity 511 by the suction port 52 enter the arc cavity along with the air flow. Under the guidance of the inner wall of the arc cavity and the pushing of the arc blade, the air flow carrying the impurities flows smoothly along the arc trajectory to the communication box 58 interface at the top of the cavity, avoiding the accumulation and blockage of impurities in the cavity caused by irregular shape of the cavity or the blade.

[0061] The brush 46 is a flexible and detachable structure. This is to replace different brushes 46 according to different hot steel plate blanks, and different materials of the brush 46 can be used to clean the surface of the hot steel plate blank. Since the cleaning assembly 4 is sequentially arranged along the support 2, a steel brush 46 can be used in the direction in which the hot steel plate blank enters, and the surface of the hot steel plate blank is first polished. In the subsequent several cleaning assemblies 4, flexible brushes 46 can be used to clean the hot steel plate blank in sequence, thereby improving the cleaning effect of the surface of the hot steel plate blank. At the same time, different shapes of brushes 46 can be replaced to clean different surfaces of the hot steel plate blank. In addition, if the brush 46 is damaged or worn after a long time of use, the brush 46 can be quickly replaced, improving the efficiency of replacement.

[0062] The distance between the suction port 52 and the transport roller 63 is greater than the thickness of the hot steel plate blank.

[0063] In actual production, the thickness of the hot steel plate blank has a certain tolerance, and the surface of the plate blank may have a slight wavy deformation due to the rolling process. The distance between the suction port 52 and the transport roller 63 is greater than the thickness of the hot steel plate blank, which can provide sufficient "safety clearance" for the plate blank. Even if the plate blank has thickness deviation or surface deformation, it can smoothly pass under the suction port 52, completely avoiding the risk of collision.

[0064] At the same time, a set of cleaning device usually needs to adapt to hot steel plate slabs of multiple thickness specifications. If the distance between the suction port 52 and the transport roller 63 is only slightly greater than the thickness of a certain slab, collision risk may still occur when a thicker slab is replaced. The brush 46 of the cleaning assembly 4 is retracted outward under the action of centrifugal force. Since the distance between the suction port 52 and the transport roller 63 is greater than the thickness of the slab, when the brush 46 is extended and contacts the slab, the top of the brush 46 still has a safety gap from the suction port 52, ensuring that the cleaning and suction actions do not interfere with each other.

[0065] As shown in Figure 2 The first support plate 11 and the second support plate 12 are respectively arranged on the legs at one end of the support 2, and the first motor 71 is fixedly connected with the first support plate 11, and the second motor 72 is fixedly connected with the second support plate 12.

[0066] The first support plate 11 and the second support plate 12 are directly mounted carriers of the first motor 71 and the second motor 72, and are fixedly mounted on the legs by means of bolt connection. The height between the two is greater than the height of the first motor 71, so that the first motor 71 can be mounted on the first support plate 11, and the first motor 71 and the second motor 72 are connected by bolts, for ensuring the stability of the first motor 71 and the second motor 72 during transportation.

[0067] A hot steel plate slab surface cleaning method, comprising the following steps: S1: placing a hot steel plate slab on the transport roller 63, driving the transport roller 63 to rotate by the first motor 71, and moving the hot steel plate slab to the bottom of the cleaning assembly 4 and the suction assembly 5; S2: driving the plurality of rotating drums 45 on the cleaning assembly 4 to rotate at high speed by the second motor 72, and driving the brush 46 to clean the hot steel plate slab; S3: controlling the rotating speed of the rotating drum 45, so that the brush 46 extends outward under the action of centrifugal force, reduces the distance between the brush 46 and the hot steel plate slab, and increases the contact area with the hot steel plate slab; S4: in the process of cleaning, driving the rotating blade 55 to rotate at high speed by the rotating shaft 53 of the suction assembly 5, and generating negative pressure at the suction port 52 to adsorb the impurities and dust after cleaning; S5: the impurities and dust after suction enter the collecting box 57 through the communication box 58 for collection.

[0068] The working process of the present application: when cleaning the hot steel plate blank, first, place the hot steel plate blank on the transport roller 63 on the transport assembly 6, drive the fifth belt 77 to rotate by the first motor 71, thereby driving the fourth rotating wheel 76 to rotate, driving the transport shaft 61 to rotate by the fourth rotating wheel 76, and the transport shaft 61 drives the transport roller 63 to rotate. Since the transport rotating wheel 62 on each transport shaft 61 is connected by the sixth belt 78, it will drive all the transport rollers 63 to rotate, and the hot steel plate blank is slowly moved by the transport roller 63 and enters below the cleaning assembly 4 and the adsorption assembly 5.

[0069] When the hot steel plate blank enters below the cleaning assembly 4, the second motor 72 is started, the third rotating wheel 74 is driven to rotate by the first belt 73, and the rotating shaft 41 is driven to rotate by the third rotating wheel 74. Since the first rotating wheel 43 on each rotating shaft 41 is connected by the second belt 75, it will drive all the rotating shafts 41 to rotate, and the sleeve 42, rotating ring 44, rotating drum 45 and brush 46 are driven to rotate by the rotating shaft 41. During the rotation of the rotating drum 45, the compression spring 47 is compressed by the centrifugal force overcoming the elastic potential energy of the compression spring 47, the brush 46 moves radially outward, and contacts the surface of the hot steel plate blank, thereby cleaning the hot steel plate blank. With the rotation of the rotating drum 45, the impurities after cleaning will be brought to the rear by the brush 46.

[0070] With the rotation of the rotating shaft 41 on the cleaning assembly 4, since the other end of the rotating shaft 41 and the first rotating wheel 43 are connected by the seventh belt 79 with the second rotating wheel 54 on the adsorption assembly 5, the second rotating wheel 54 will be driven to rotate, the rotating shaft 53 will be driven to rotate by the second rotating wheel 54, and the rotating blade 55 will be driven to rotate by the rotating shaft 53. The high-speed rotating blade will form a negative pressure inside the cavity 511, and the impurities and dust generated during cleaning will be adsorbed through the adsorption port 52, and will enter the communication box 58 inside through the cavity 511, and will enter the collection box 57 through the communication box 58 for collection. The filter screen 59 excludes excess air, and at the same time, prevents the collected impurities and dust from leaking to the outside.

[0071] Since the support 2 is provided with a plurality of cleaning assemblies 4 and adsorption assemblies 5, the surface of the hot steel plate blank can be cleaned multiple times in sequence by the plurality of cleaning assemblies 4, thereby improving the cleaning efficiency and the cleaning quality.

[0072] To those skilled in the art, the present application is not limited to the details of the above-described exemplary embodiments, but can be realized in other concrete forms without departing from the spirit or scope of the present application. Therefore, the embodiments of the present application are illustrative and non-limiting. The scope of the present application is defined by the appended claims rather than the above description, and thus all changes falling within the meaning and range of equivalency of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

Claims

1. A surface cleaning device for hot steel slabs, characterized in that, include: Support (1), bracket (2), support (3), cleaning component (4), adsorption component (5), transport component (6) and drive component (7); multiple support legs (1) are fixedly installed at the bottom of two mutually symmetrical brackets (2), and mutually symmetrical supports (3) are fixedly installed at the top of two mutually symmetrical brackets (2). Multiple cleaning components (4) are fixedly installed between two supports (3). Multiple adsorption components (5) are fixedly installed on the brackets (2) and are arranged at intervals with the cleaning components (4). The transport component (6) is fixedly installed between two brackets (2) and is located below the cleaning components (4) and adsorption components (5). The drive component (7) is fixedly installed on one side of any one of the brackets (2). The driving component (7) drives the cleaning component (4) to rotate and cleans the surface of the hot steel plate blank. At the same time, it drives the adsorption component (5) to rotate and adsorb and collect the impurities and dust generated during cleaning.

2. The surface cleaning device for hot steel slabs as described in claim 1, characterized in that: The cleaning assembly (4) includes a rotating shaft (41), a sleeve (42), a first rotating wheel (43), a rotating ring (44), a rotating cylinder (45), a brush (46), a compression spring (47), and a limiting block (48). Multiple rotating shafts (41) are rotatably mounted between mutually symmetrical supports (3), with both ends of the multiple rotating shafts (41) passing through the supports (3) on both sides. A sleeve (42) is fixedly mounted on each of the multiple rotating shafts (41), and the multiple sleeves (42) are located between two supports (3). A first rotating wheel (43) is fixedly mounted on one end of each of the multiple rotating shafts (41), and multiple first rotating wheels (43) are fixedly mounted on the other end of each of the multiple rotating shafts (41). 43) Multiple rotating rings (44) are fixedly mounted on multiple sleeves (42), multiple rotating cylinders (45) are fixedly mounted on multiple rotating rings (44), multiple brushes (46) are arranged in a ring around the axis of the multiple rotating cylinders (45), and the multiple brushes (46) pass through the rotating cylinders (45). Compression springs (47) are fixedly mounted on the multiple brushes (46), and the multiple compression springs (47) are located inside the rotating cylinders (45). Limiting blocks (48) are fixedly mounted on the inner ends of the multiple brushes (46) inside the rotating cylinders (45), and the multiple limiting blocks (48) are in contact with the outer circumference of the rotating rings (44).

3. The surface cleaning device for hot steel slabs as described in claim 2, characterized in that: The adsorption assembly (5) includes a housing (51), an adsorption port (52), a rotating shaft (53), a second rotating wheel (54), rotating blades (55), a partition (56), a collection box (57), a connecting box (58), and a filter screen (59). Multiple housings (51) are fixedly mounted on a bracket (2). An adsorption port (52) is fixedly mounted on one side of each housing (51). A rotating shaft (53) is rotatably mounted inside each housing (51). A second rotating wheel (54) is fixedly mounted at one end of each rotating shaft (53). Multiple rotating shafts (53) are arranged in a linear array along their axes. Multiple rotating blades (55) and multiple partitions (56) are fixedly installed inside the housing (51), and the multiple partitions (56) divide the housing (51) into multiple cavities (511). The multiple rotating blades (55) are located inside the multiple cavities (511). A collection box (57) is fixedly installed on the top of the multiple housings (51). A multiple connecting box (58) is fixedly installed on one side of the multiple collection boxes (57), and the multiple connecting boxes (58) are connected to the multiple cavities (511). A filter screen (59) is fixedly installed on the top of the multiple collection boxes (57).

4. The surface cleaning device for hot steel slabs as described in claim 3, characterized in that: The transport assembly (6) includes a transport shaft (61), a transport wheel (62), and a transport roller (63). The multiple transport shafts (61) are rotatably mounted between the two brackets (2), and the multiple transport shafts (61) are located below the cleaning assembly (4). One end of each of the multiple transport shafts (61) is fixedly mounted with a transport wheel (62), and each of the multiple transport shafts (61) is fixedly mounted with a transport roller (63).

5. The surface cleaning device for hot steel slabs as described in claim 4, characterized in that: The drive assembly (7) includes a first motor (71), a second motor (72), a first belt (73), a third pulley (74), a second belt (75), a fourth pulley (76), a fifth belt (77), a sixth belt (78), and a seventh belt (79). The first motor (71) is fixedly mounted on the bracket (2). The fourth pulley (76) is fixedly mounted on the end of the transport shaft (61) at one end of the bracket (2), and the fourth pulley (76) is located outside the transport pulley (62). The fourth pulley (76) is connected to the first motor (71) through the fifth belt (77). The sixth belt (78) is rotatably mounted on the transport shaft on one side of the bracket (2). On wheel (62), the second motor (72) is fixedly mounted on bracket (2) and the second motor (72) is located above the first motor (71). The third wheel (74) is fixedly mounted on the end of the shaft (41) at one end of bracket (2) and the third wheel (74) is located outside the first wheel (43). The third wheel (74) is connected to the second motor (72) through the first belt (73). Multiple second belts (75) are rotatably mounted on two adjacent first wheels (43) on one side of bracket (2). Multiple seventh belts (79) are connected to the first wheel (43) and the adjacent second wheel (54) on the other side of bracket (2).

6. The surface cleaning device for hot steel slabs as described in claim 5, characterized in that: The cavity (511) inside the box (51) is an arc-shaped cavity, and the rotating blade (55) is an arc-shaped structure.

7. The surface cleaning device for hot steel slabs as described in claim 6, characterized in that: The brush (46) has a flexible and detachable structure.

8. The surface cleaning device for hot steel slabs as described in claim 7, characterized in that: The distance between the adsorption port (52) and the transport roller (63) is greater than the thickness of the hot steel slab.

9. The surface cleaning device for hot steel slabs as described in claim 8, characterized in that: The bracket (2) has a first support plate (11) and a second support plate (12) respectively on one end of the support leg, and the first motor (71) is fixedly connected to the first support plate (11), and the second motor (72) is fixedly connected to the second support plate (12).

10. A method for cleaning the surface of a hot-rolled steel slab, using the surface cleaning device for a hot-rolled steel slab as described in any one of claims 1 to 9, characterized in that, Includes the following steps: S1: Place the hot steel plate blank on the transport roller (63), drive the transport roller (63) to rotate through the first motor (71), and move the hot steel plate blank to the bottom of the cleaning assembly (4) and the adsorption assembly (5); S2: The second motor (72) drives multiple rotating drums (45) on the cleaning assembly (4) to rotate at high speed, thereby driving the brush (46) to clean the hot steel plate blank; S3: By controlling the rotation speed of the drum (45), the brush (46) extends outward under the action of centrifugal force, reducing the distance between it and the hot steel plate blank, and increasing the contact area with the hot steel plate blank. S4: During the cleaning process, the rotating blades (55) are driven to rotate at high speed by the rotating shaft (53) on the adsorption component (5), and negative pressure is generated at the adsorption port (52) to adsorb the dust and impurities after cleaning. S5: The adsorbed impurities and dust enter the collection box (57) through the connecting box (58) for collection.

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