Aluminum-containing steel plate rolling equipment and technology capable of inhibiting generation of aluminum oxide
By using a closed-loop system consisting of staggered feeding of the feeding component, cooling spray of the rolling auxiliary component, and agitation and cooling of the liquid agitation component, the problem of alumina formation during the rolling of aluminum-containing steel plates was solved, and temperature control and equipment stability were improved.
Patent Information
- Application Number
- CN202511468716.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2025-12-26
AI Technical Summary
During the rolling process of aluminum-containing steel plates, the formation of alumina leads to surface defects, and the rolling equipment suffers from thermal deformation of the high-temperature rollers and a shortened equipment lifespan, which is difficult to effectively suppress with existing technologies.
By employing a staggered feeding design for the feeding components, synchronous cooling and inert gas injection for the rolling auxiliary components, and agitation and cooling and impurity removal for the liquid agitation components, a closed-loop cooling system is formed, which inhibits alumina formation and extends the equipment life.
It effectively inhibits alumina formation, reduces rolling temperature differences, improves equipment stability and service life, and ensures efficient and continuous production during the rolling process.
Smart Images
Figure CN121198769A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of steel plate rolling, in particular to a rolling device and process for an aluminum-containing steel plate capable of inhibiting the generation of aluminum oxide. BACKGROUND
[0002] With the rapid development of high-end equipment manufacturing and new energy industries, aluminum-containing steel (such as high-strength steel, weathering steel, low-alloy steel, etc.) has become the core material in the fields of shipbuilding, bridge construction, pressure vessel production, new energy vehicle manufacturing, etc. due to its excellent mechanical strength, corrosion resistance and lightweight characteristics, and the market demand continues to rise. However, the introduction of aluminum significantly changes the physical and chemical properties of steel, leading to the formation of aluminum oxide notches on the surface of the steel plate after rolling. The main reasons for this defect are as follows: 1. Aluminum has a strong tendency to oxidize. The original oxide layer of the aluminum-containing steel billet is destroyed under the action of rolling force, and the fresh steel matrix exposed in the high-temperature environment will quickly recombine with oxygen to form aluminum oxide again, further exacerbating the surface defect problem. 2. In the rolling process, the lubricating liquid is usually only sprayed on the top of the steel billet, and the top surface of the steel billet is in an open state. The heat dissipation speed is much faster than the bottom surface, which is prone to form a temperature difference distribution of "top surface temperature lower than bottom surface temperature". The bottom surface of the steel billet is more prone to aluminum oxide; 3. The high-temperature conduction of the steel billet and the mechanical friction generated by the rotation of the roller frame will cause the temperature of the steel billet input roller frame and the transfer roller to continuously rise. On the one hand, the high-temperature roller frame is prone to thermal deformation, which directly affects the conveying accuracy of the steel billet, and accelerates the aging of the roller frame components, shortening the service life of the equipment. On the other hand, the temperature rise of the roller frame will further enlarge the temperature difference between the top and bottom of the steel billet, forming a vicious cycle of "temperature difference aggravation and oxidation increase". SUMMARY
[0003] In view of the shortcomings of the prior art, the present application provides a rolling device for an aluminum-containing steel plate capable of inhibiting the generation of aluminum oxide, which solves the problems mentioned in the background.
[0004] To achieve the above purpose, the present application is implemented by the following technical solutions: The rolling device for an aluminum-containing steel plate capable of inhibiting the generation of aluminum oxide comprises: a feeding assembly arranged at the feeding end of the device; a rolling mill group arranged in sequence along the conveying direction of the feeding assembly, comprising a rough rolling mill group, a transfer roller, a finishing rolling mill group and a post-rolling cooling mill group; a rolling auxiliary assembly installed on both sides of the rough rolling mill group and the finishing rolling mill group, respectively, for spraying lubricating liquid and inert gas into the rolling area; a liquid collecting assembly arranged below the feeding assembly, the rough rolling mill group and the finishing rolling mill group; a cooling assembly connected to the liquid collecting assembly and the rolling auxiliary assembly through pipelines; and a liquid agitation assembly arranged between the transfer roller and the backflow collection tank. The liquid stirring assembly comprises: a ring-shaped transmission belt, the bottom of which is a telescopic deformation structure, and a plurality of stirring blades are vertically arranged on the outer wall at equal intervals; the outer end of the stirring blade is vertically provided with a coating scraper for contacting the surface of the transfer roller; a pulling component is connected to the outer side of the ring-shaped transmission belt for driving the ring-shaped transmission belt to move longitudinally between the transfer roller and the backflow collection tank; and a stirring driving assembly is arranged at the inner middle part of the ring-shaped transmission belt; wherein the stirring driving assembly comprises a driving roller, and a plurality of storage grooves are formed in the outer wall of the driving roller, and the storage grooves are alternately provided with telescopic magnetic plates and cleaning brush plates. When the liquid stirring assembly works, the magnetic plates are extended from the storage grooves and embedded in the tooth grooves in the inner wall of the ring-shaped transmission belt, the ring-shaped transmission belt drives the stirring blades to stir the lubricating liquid in the backflow collection tank, and the lubricating liquid is coated on the surface of the transfer roller based on the coating scraper, so as to reduce the temperature of the transfer roller and inhibit the temperature difference of the steel plate caused by the temperature rise of the transfer roller.
[0005] As a second aspect of the present application, a rolling process of an aluminum-containing steel plate capable of inhibiting the generation of aluminum oxide is provided, which comprises the following steps: The two groups of feeding components of the feeding assembly alternately switch the conveying station and the cooling station; The lubricating liquid and the inert gas are synchronously sprayed into the rolling area through the rolling auxiliary assembly; The lubricating liquid in the backflow collection tank is stirred through the liquid stirring assembly, and the lubricating liquid is coated on the surface of the transfer roller; The circulation cooling of the lubricating liquid and the cooling water is realized through the liquid collecting assembly and the cooling assembly.
[0006] The present application provides a rolling equipment of an aluminum-containing steel plate capable of inhibiting the generation of aluminum oxide. Compared with the prior art, the present application has the following beneficial effects: 1. The cooling spray beam and the gas spray beam of the rolling auxiliary assembly work synchronously, the cooling spray beam sprays low-temperature lubricating liquid to directly reduce the temperature of the rolling contact area of the roller and the billet, and reduce the oxidation reaction caused by frictional heat; the gas spray beam sprays inert gas to quickly expel oxygen in the rolling area, when the oxidation layer of the billet is damaged in rolling, the aluminum element cannot contact with oxygen, thereby blocking the generation of aluminum oxide from the reaction condition, and the two are concentratedly applied to the rolling area under the constraint of the protective cover, and the protection is more accurate.
[0007] 2. The two groups of misaligned feeding components of the feeding assembly switch the stations through lifting driving: when the roller frame in the conveying station carries the billet, the other group of roller frames are immersed in the backflow collection tank for standby cooling, thereby avoiding the problem that the traditional single roller frame is continuously heated and the temperature is increased, the temperature of the bottom surface of the billet is too high, and the temperature difference is formed with the top surface, the standby roller frame at low temperature replaces the conveying, can quickly balance the temperature of the billet, reduce the oxidation tendency of the high-temperature area, and form a double inhibition effect with the direct protection of the rolling area.
[0008] 3. The return collection tank can collect the lubricating fluid dripping from the rolling zone. Its internal cooling chamber is connected to the recycled water of the post-rolling cooling unit through the cooling water circulation component. The residual heat of the post-rolling wastewater is used to pre-cool the lubricating fluid. After the pre-cooled lubricating fluid is further cooled by the cooling components, it is transported back to the cooling spray beam of the rolling auxiliary components, forming a closed loop of "recovery-cooling-re-spraying". This ensures that the lubricating fluid sprayed into the rolling zone is always at a low temperature, ensuring the cooling efficiency of the billet and rolls, thereby improving the alumina inhibition effect.
[0009] 4. The liquid agitation component, through its dual-state switching between "agitation and cooling" and "impurity removal," not only enhances the alumina suppression effect but also solves equipment operation and maintenance problems. The agitation drive assembly drives the ring transmission belt to move, which in turn drives the agitator blades to agitate the lubricant in the return collection tank, promoting rapid mixing of low-temperature and high-temperature lubricants and preventing localized overheating from affecting subsequent use. At the same time, the liquid storage box of the agitator blades can scoop up low-temperature lubricant and apply it to the transfer roller when it rotates to the top, reducing the temperature of the transfer roller. This design solves the problem of the transfer roller being heated and exacerbating the temperature difference during steel plate transportation, further replenishing and balancing the temperature of the billet, and indirectly inhibiting the formation of alumina. After the annular transmission belt moves outward, the agitation drive assembly can descend to the return collection tank, where the cleaning brushes sweep away deposited impurities and the magnetic plates adsorb iron filings, eliminating the need for manual cleaning by stopping the machine. Attached Figure Description
[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0011] Figure 1 A schematic diagram of the overall structure of the aluminum-containing steel plate rolling equipment of the present invention, which can suppress the formation of alumina, is shown. Figure 2 A schematic diagram of the overall structure of the feeding assembly of the present invention is shown; Figure 3 A schematic diagram of the cross-sectional structure of the feeding assembly of the present invention is shown; Figure 4 A schematic diagram of the transmission column and clamping component of the present invention is shown; Figure 5 A schematic diagram of the cooperation structure between the side drive component and the first feeding roller frame of the present invention is shown; Figure 6 A schematic diagram of the first feeding roller frame structure of the present invention is shown; Figure 7The second upper feeding roller frame structure of the application is shown in the figure. Figure 8 The auxiliary rolling assembly structure of the application is shown in the figure. Figure 9 The liquid stirring assembly and stirring drive assembly structure of the application is shown in the figure. Figure 10 The liquid stirring assembly outer structure of the application is shown in the figure. Figure 11 The liquid stirring assembly and stirring drive assembly separation structure of the application is shown in the figure. Figure 12 The liquid stirring assembly in stirring cooling mode structure of the application is shown in the figure. Figure 13 The liquid stirring assembly in cleaning mode structure of the application is shown in the figure. Figure 14 The cooling assembly and backflow collection tank overhead structure of the application is shown in the figure. Figure 15 The main machine box internal structure of the application is shown in the figure. The figure shows: 100, feeding assembly; 110, first upper feeding roller frame, 111, main support side plate, 112, main bearing roller body, 113, main roller gap, 114, transmission column, 115, driven gear; 120, second upper feeding roller frame, 121, auxiliary support side plate, 122, auxiliary bearing roller body, 123, auxiliary roller gap; 130, lifting drive component, 131, main lifting guide rail, 132, auxiliary lifting guide rail, 133, bearing platform, 134, top mounting plate; 140, side drive component, 141, lateral drive motor, 142, drive gear; 150, lubrication drainage pipe; 160, clamping component, 161, opening and closing support seat, 162, half clamp plate of hoop; 200, auxiliary rolling assembly, 210, protective cover body, 220, cooling spray beam, 230, gas spray beam; 300, rolling mill unit, 310, rough rolling mill unit, 320, transfer roller, 330, finish rolling mill unit, 340, post-rolling cooling unit; 400, liquid collecting assembly, 410, backflow collection tank, 411, sediment collection tank, 412, cooling cavity, 420, liquid pumping pump, 430, cooling water circulation component, 431, cooling coil, 432, cooling water tank, 433, circulating pump; 500, cooling assembly, 510, main machine box, 511, first cooling liquid cavity, 520, first heat exchange coil, 530, second heat exchange coil, 540, cooling fan; 600, liquid stirring assembly, 610, annular transmission belt, 611, tooth groove; 620, stirring blade, 621, coating scraper, 622, adsorbed cotton layer; 630, pulling component, 631, longitudinal moving guide rail, 632, pulling vertical plate, 633, pulling side plate, 634, upper guide roller, 635, lower guide roller, 636, adjusting inclined rail, 637, adjusting sliding block; 700, stirring drive assembly, 710, transverse moving guide rail, 720, supporting back plate, 730, vertical guide rail, 740, hanging sliding block, 741, transmission motor; 750, drive roller, 751, storage groove, 760, cleaning brush plate, 761, brush body drive rod, 770, magnetic plate, 771, magnetic plate drive rod. DETAILED DESCRIPTION
[0012] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.
[0013] As an embodiment of the present application, in order to solve the technical problems in the background art, the following rolling equipment for aluminum-containing steel plate capable of inhibiting the generation of aluminum oxide is given: As shown in Figure 1 , the feeding assembly 100 is arranged at the feeding end of the equipment and includes two groups of feeding components, and the two groups of feeding components are vertically staggered and arranged at intervals, as shown in Figure 2 , the outer ends of the two groups of feeding components are connected with the lifting drive component 130, and the two groups of feeding components are staggered; wherein, the lifting drive component 130 is used to drive the two groups of feeding components to move alternately to switch between the conveying station and the cooling station; the feeding assembly 100 further includes the side drive component 140 which is in butt joint with the feeding component at the conveying station; the side drive component 140 is arranged at the top end of the lifting drive component 130; The rolling mill train 300 is further arranged along the conveying direction of the feeding assembly 100, and includes the rough rolling mill train 310, the finishing rolling mill train 330 and the post-rolling cooling mill train 340 arranged in sequence, wherein, the rough rolling mill train 310 is arranged at the output end of the feeding assembly 100, and the intermediate roller 320 is arranged between the rough rolling mill train 310 and the finishing rolling mill train 330; As shown in Figure 8 , the rolling auxiliary assembly 200 is further arranged, and two groups of the rolling auxiliary assembly 200 are arranged on both sides of the rough rolling mill train 310 and the finishing rolling mill train 330 respectively; it can be understood that the rolling auxiliary assembly 200 is used to spray lubricating liquid and inert gas to the rolling area; Also included is a liquid collection assembly 400, which includes a backflow collection tank 410 arranged at the bottom below the feeding assembly 100, the rough rolling mill group 310 and the finishing rolling mill group 330; and is used to recover the lubricating liquid in the rolling area; wherein, as shown in Figure 1 , Figure 3 a cooling water circulation component 430 is arranged in the inner layer (the inner cooling cavity 412) of the backflow collection tank 410; the cooling water circulation component 430 is used to guide the water from the post-rolling cooling mill group 340 into the cooling cavity 412, so as to assist in reducing the temperature of the lubricating liquid in the backflow collection tank 410; and at the same time, the feeding component at the cooling station is immersed in the backflow collection tank 410; As shown in Figure 14 , a cooling assembly 500 is also included, which is connected with the backflow collection tank 410 and the cooling water circulation component 430 through pipelines, and is used to reduce the temperature of the cooling water and the lubricating liquid; As shown in Figure 1 , a liquid agitation assembly 600 is also included, which includes an annular transmission belt 610, as shown in Figure 9 , the bottom of the annular transmission belt 610 is in an elastic deformation structure, the outer side of the annular transmission belt 610 is connected with a pulling component 630, and a plurality of sets of agitation blades 620 are vertically arranged at equal intervals on the outer wall of the annular transmission belt 610. The inner middle part of the annular transmission belt 610 is provided with an agitation driving assembly 700.
[0014] Based on the above technical concept, it can be understood that, in the agitation cooling mode of the liquid agitation assembly 600, the annular transmission belt 610 is connected with the agitation driving assembly 700, the annular transmission belt 610 is arranged between the transfer roller 320 and the backflow collection tank 410, the agitation driving assembly 700 drives the annular transmission belt 610 to move, so that the agitation blades 620 agitate the lubricating liquid in the backflow collection tank 410, and the lubricating liquid is applied to the transfer roller 320, so as to assist in reducing the temperature of the transfer roller 320; and in the cleaning mode of the liquid agitation assembly 600, the annular transmission belt 610 is separated from the agitation driving assembly 700, and the agitation driving assembly 700 magnetically attracts and removes the impurities in the backflow collection tank 410.
[0015] Thus, the rolling equipment provided by the present application effectively inhibits the generation of aluminum oxide in the rolling process of the aluminum-containing steel plate through the cooperation of the above assemblies, and specifically: Through the synchronous work of the cooling spray beam 220 and the gas spray beam 230 of the rolling auxiliary assembly 200, low-temperature lubricating liquid and inert gas are sprayed to precisely act on the rolling area under the constraint of the protective cover body 210, so that the double protection of cooling and oxygen isolation is realized; through the alternate switching of the two groups of staggered feeding components of the feeding assembly 100 between the conveying station and the cooling station, when the roller frame in the conveying station carries the billet, the other group of roller frames is immersed in the backflow collection tank 410 for cooling standby, so that the oxidation tendency is reduced; then the backflow collection tank 410 collects the lubricating liquid, and the cooling water circulation component 430 and the cooling assembly 500 form a closed loop of recycling-cooling-re-spraying, so as to ensure the continuous low-temperature and high-efficiency of the lubricating liquid, ensure the cooling efficiency of the billet and the roller, and further improve the alumina inhibition effect; finally, through the stirring cooling and cleaning mode switching of the liquid stirring assembly 600, the stirring blade 620 is used to mix the lubricating liquid and cool the transfer roller 320, so as to further solve the problem that the temperature difference in the steel plate conveying process is aggravated due to the heating of the transfer roller 320, and at the same time, the deposition impurities are cleaned through the cleaning brush plate 760 and the magnetic attraction plate 770, so as to ensure the stable operation of the equipment while strengthening the alumina inhibition effect.
[0016] In an embodiment of the present application, since the traditional feeding roller frame is of an integral structure, the temperature of the feeding roller frame is relatively high after long-time work.
[0017] Based on this, in the embodiment, as shown in Figure 2 Figure 3 Figure 7 It is proposed that each group of feeding components includes a first feeding roller frame 110 and a second feeding roller frame 120. As shown in Figure 6 The first feeding roller frame 110 includes a main supporting side plate 111 and a main bearing roller body 112; a plurality of main bearing roller bodies 112 are fixedly installed on the inner wall of the main supporting side plate 111; a transmission column 114 is arranged at one end of the main bearing roller body 112 away from the main supporting side plate 111, and a driven gear 115 is arranged at the outer end of the transmission column 114; similarly, the second feeding roller frame 120 includes a vice supporting side plate 121 and a vice bearing roller body 122; a plurality of vice bearing roller bodies 122 are fixedly installed on the inner wall of the vice supporting side plate 121; the structure of the main bearing roller body 112 is the same as that of the vice bearing roller body 122; the vice supporting side plate 121 and the main supporting side plate 111 are symmetrically arranged, and the main bearing roller body 112 and the vice bearing roller body 122 are staggered arranged; the vice bearing roller bodies 122 are arranged with a vice roller gap 123 for the main bearing roller body 112 to pass through, and the main bearing roller bodies 112 are arranged with a main roller gap 113 for the vice bearing roller body 122 to pass through.
[0018] Based on the above technical concept, it can be understood that by longitudinally symmetrical and staggered arrangement of the first feeding roller frame 110 and the second feeding roller frame 120, the main roller gap 113 is provided for the vice carrying roller body 122 to penetrate, and the vice roller gap 123 is provided for the main carrying roller body 112 to penetrate, so as to ensure that they do not interfere with each other during lifting switching, realize the alternation of "conveying-cooling", and meet the continuous production demand.
[0019] In an embodiment of the present application, as shown in Figure 2 The lifting driving part 130 includes a main lifting guide rail 131, an auxiliary lifting guide rail 132, and a top mounting plate 134. The outer wall of the main support side plate 111 is symmetrically and slidingly installed with two groups of main lifting guide rails 131, and the outer wall of the vice support side plate 121 is symmetrically and slidingly installed with two groups of auxiliary lifting guide rails 132. The top of each group of main lifting guide rails 131 and each group of auxiliary lifting guide rails 132 is provided with a carrying platform 133, and the surface of each group of carrying platforms 133 is installed with a plurality of side driving parts 140.
[0020] Further, as shown in Figure 3 - Figure 4 The side driving part 140 includes a lateral driving motor 141 and a driving gear 142. The lateral driving motor 141 is installed on the surface of the carrying platform 133, the output end of the lateral driving motor 141 is connected with the driving gear 142, and the driving gear 142 is located in the conveying station of the feeding assembly 100. Each group of driving gears 142 is engaged with the top of the driven gear 115.
[0021] Based on the above technical concept, it can be understood that by using the main lifting guide rail 131 and the auxiliary lifting guide rail 132, the lifting height of the first feeding roller frame 110 and the second feeding roller frame 120 can be controlled, so as to ensure the switching of the conveying station and the cooling station. By engaging the driving gear 142 of the side driving part 140 with the driven gear 115, the lateral driving motor 141 can provide stable power to ensure that the vice carrying roller body 122 or the vice carrying roller body 122 can be stably driven after rising to the conveying station, and at the same time, the engagement structure can be automatically separated during descending, without affecting the immersion of the roller frame in the lubricating liquid.
[0022] In an embodiment of the present application, as shown in Figure 3 , Figure 5 The top of the carrying platform 133 is provided with a top mounting plate 134 with a 7-shaped cross section. The bottom surface of the top mounting plate 134 is provided with a lubricating drainage pipe 150, and the output end of the lubricating drainage pipe 150 is inclined towards the engagement position of the driving gear 142 and the driven gear 115. At the same time, the bottom end of the top mounting plate 134 is provided with a clamping part 160.
[0023] Further, as shown in Figure 4As shown, the clamping component 160 comprises an open-close support seat 161 and a clamp half-plate 162, wherein the open-close support seat 161 is vertically arranged on the bottom surface of the top mounting plate 134, the bottom surface of the open-close support seat 161 is symmetrically and slidingly installed with the clamp half-plate 162, and the inner wall of the clamp half-plate 162 is embedded with a ball; the two groups of clamp half-plates 162 are used to be clamped on the transmission column 114.
[0024] Based on the above technical concept, it can be understood that the peripheral lifting liquid pump extracts the lubricating liquid in the backflow collection tank 410 and transports it to each lubricating liquid discharge pipe 150 through the arranged shunt pipe, and finally precisely sprays it to the meshing position of the driving gear 142 and the driven gear 115, realizes continuous lubrication, thereby reducing gear wear, prolonging component life and ensuring stable power transmission. At the same time, when the carrier roller frame rises to the conveying station, the open-close support seat 161 drives the two groups of clamp half-plates 162 to close, clamps them on the transmission column 114, provides effective radial constraint for the other end of the single-side supported carrier roller frame, and can prevent the feeding roller frame from shaking during the conveying process; the ball embedded in the inner wall of the clamp half-plate 162 ensures that the transmission column 114 can stably rotate inside it.
[0025] In an embodiment of the present application, as shown in Figure 8 The proposed rolling auxiliary assembly 200 comprises a protective cover 210, wherein the inner wall of the protective cover 210 is installed with a cooling spray beam 220 and a gas spray beam 230, the inlet end of the gas spray beam 230 is connected to an inert gas source through another pipeline, and the inlet end of the cooling spray beam 220 is connected to a cooling assembly 500.
[0026] Based on the above technical concept, it can be understood that the gas spray beam 230 sprays inert gas to the rolling area to expel oxygen, which can inhibit the generation of aluminum oxide from the source; at the same time, the cooling spray beam 220 synchronously sprays lubricating liquid to the area, effectively reduces the temperature of the roller and the billet and reduces friction, realizes double protection of the rolling area. The arrangement of the protective cover 210 around the rolling area can block the splashing of lubricating liquid and ensure its concentrated dripping into the backflow collection tank 410 for recycling, which not only reduces waste and pollution, but also improves the circulation efficiency of the lubricating liquid.
[0027] In an embodiment of the present application, as shown in Figure 1 The proposed pulling component 630 comprises a longitudinal displacement guide rail 631, wherein the top of the longitudinal displacement guide rail 631 is slidingly installed with a pulling vertical plate 632, the top end of the pulling vertical plate 632 is fixedly connected with a pulling side plate 633, and the pulling side plate 633 is located between the transfer roller 320 and the backflow collection tank 410.
[0028] Further, as shown in Figure 9 The inner top of the pulling side plate 633 is symmetrically and rotationally installed with an upper guide roller 634, as shown in Figure 10As shown, the bottom of the pull-out side plate 633 is symmetrically provided with an adjusting inclined rail 636, the inside of the adjusting inclined rail 636 is slidably provided with an adjusting sliding block 637, and the inner side of each group of adjusting sliding blocks 637 is rotatably provided with a group of lower guide rollers 635. It should be noted that each group of upper guide rollers 634 and each group of lower guide rollers 635 are respectively attached and supported at the inner four corners of the annular transmission belt 610; the two sides of the annular transmission belt 610 are of an open structure; the adjusting inclined rail 636 is used to drive the lower guide rollers 635 to move downwardly and obliquely, so as to drive the bottom of the annular transmission belt 610 to deform downwardly and immerse into the reflux collecting groove 410.
[0029] Based on the above technical concept, it can be understood that, in order to meet the requirements of the equipment in the stirring cooling and cleaning maintenance modes, the present application proposes that the pull-out component 630 drives the pull-out vertical plate 632 to slide through the longitudinal guide rail 631, drives the pull-out side plate 633, the annular transmission belt 610, and the upper guide rollers 634 and the lower guide rollers 635 thereon to move outwardly as a whole, so as to realize the quick separation of the annular transmission belt 610 and the stirring driving assembly 700, and at the same time, in this structure, the two groups of upper guide rollers 634 are responsible for fixedly supporting the top two corners of the annular transmission belt 610, so as to maintain the stability of the upper part thereof.
[0030] Further, since it is necessary to ensure that the annular transmission belt 610 can normally longitudinally enter and exit between the reflux collecting groove 410 and the transfer roller 320, and it is also necessary to ensure that, after the annular transmission belt 610 is inserted between the reflux collecting groove 410 and the transfer roller 320, the stirring blade 620 can contact the inside of the transfer roller 320 and the reflux collecting groove 410.
[0031] Therefore, the present application proposes that two groups of movable lower guide rollers 635 are designed, the adjusting inclined rail 636 can drive the adjusting sliding block 637 to move obliquely, and then drives the lower guide rollers 635 to synchronously move obliquely inwardly or obliquely outwardly. When moving obliquely inwardly, the annular transmission belt 610 located below can be deformed downwardly, and then the stirring blade 620 located below can immerse into the reflux collecting groove 410, and when moving obliquely outwardly to the initial state, the stirring blade 620 is located above the reflux collecting groove 410, the whole width of the annular transmission belt 610 can be reduced, and the annular transmission belt 610 can be normally pulled out.
[0032] In an embodiment of the present application, as shown in Figure 11 - Figure 13 As shown, the inner wall of the annular transmission belt 610 is provided with annular equidistant tooth grooves 611, and at the same time, as shown in Figure 9As shown, the outer end of the stirring blade 620 is vertically provided with a coating scraper 621, the stirring blade 620 and the coating scraper 621 are arranged in T shape, and the surface of the coating scraper 621 is fixed with an adsorbing cotton layer 622 through screws. When the stirring blade 620 is located at the bottom of the annular transmission belt 610, the stirring blade 620 is immersed in the lubricating liquid in the reflux collecting groove 410; when the stirring blade 620 is located at the top of the annular transmission belt 610, the coating scraper 621 contacts the transfer roller 320.
[0033] At this time, when the annular transmission belt 610 moves, the stirring blade 620 moves to the lower side, the stirring blade 620 is immersed in the lubricating liquid in the reflux collecting groove 410, and the low-temperature lubricating liquid flows to the high-temperature lubricating liquid side, so that the cooling speed of the lubricating liquid is accelerated because the temperature of the lubricating liquid at the rear end is lower than that at the input end. At the same time, when the stirring blade 620 moves with the annular transmission belt 610 into the reflux collecting groove 410, the surface of the stirring blade 620 and the connected coating scraper 621 and the adsorbing cotton layer 622 are automatically immersed in the lubricating liquid, thereby fully preparing for subsequent lubrication and cooling of the transfer roller 320. When the stirring blade 620 is located at the top of the annular transmission belt 610, the coating scraper 621 contacts the transfer roller 320, so that the temperature of the transfer roller 320 is reduced by using the lubricating liquid, and the problem that the transfer roller 320 has no cooling measures is solved.
[0034] Because the deposits and iron impurities in the traditional reflux collecting groove 410 need to be cleaned manually during shutdown, the above problems are solved.
[0035] Based on this, as shown in Figure 9 、 Figure 11 、 Figure 13 The stirring driving assembly 700 is provided, which comprises a transverse guide rail 710, wherein the transverse guide rail 710 is arranged on one side of the surface of the reflux collecting groove 410, a supporting back plate 720 is slidingly installed on the surface of the transverse guide rail 710, a vertical guide rail 730 is embedded in the inside of the supporting back plate 720, a hanging sliding block 740 is slidingly installed on the inside of the vertical guide rail 730, a driving motor 741 is fixedly connected to the inside of the hanging sliding block 740, and an output end of the driving motor 741 is connected with a driving roller 750.
[0036] Further, as shown in Figure 12 - Figure 13As shown, the driving roller 750 is longitudinally arranged on the top of the backflow collection groove 410, and a plurality of groups of storage grooves 751 are arranged in the annular array of the outer wall of the driving roller 750, and the storage grooves are alternately arranged: one half of the grooves are provided with the cleaning brush plate 760, and the inner side of the cleaning brush plate 760 is connected with the brush body driving rod 761; the other half of the grooves are provided with the magnetic plate 770, and the inner side of the magnetic plate 770 is connected with the magnetic plate driving rod 771, and meanwhile, the brush body driving rod 761 and the magnetic plate driving rod 771 are fixedly installed in the inside of the driving roller 750, and on the circumferential direction of the driving roller 750, one magnetic plate 770 is arranged on each side (or left and right) of each cleaning brush plate 760.
[0037] It should be noted that the stirring driving assembly 700 has two working modes: In the stirring cooling mode, the cleaning brush plate 760 is retracted into the storage groove 751, and the magnetic plate 770 is extended outwardly and embedded into the tooth groove 611 on the inner wall top surface of the annular transmission belt 610 to form engagement. When the driving roller 750 rotates, the annular transmission belt 610 is driven to run through the engagement, so as to perform the stirring of the lubricating liquid and the cooling of the transfer roller 320; When it is needed to switch to the cleaning mode, first, the first feeding roller frame 110 and the second feeding roller frame 120 are adjusted to the same height to leave a working space, then the magnetic plate 770 is retracted into the storage groove 751, and the cleaning brush plate 760 is extended outwardly, the driving roller 750 is lowered into the backflow collection groove 410 as a whole, and can be moved along the transverse moving guide rail 710. In this mode, the extended cleaning brush plate 760 is responsible for sweeping the deposits, and the magnetic plate 770 is responsible for absorbing the iron impurities during the movement, so as to improve the cleaning efficiency and the continuity of production.
[0038] In an embodiment of the present application, as shown in Figure 3 The middle part of the inner bottom surface of the backflow collection groove 410 is a sediment collection groove 411, and the two sides of the sediment collection groove 411 are guide inclined surfaces, as shown in Figure 14 The side part of the backflow collection groove 410 is connected with the liquid pumping pump 420.
[0039] Further, the cooling water circulating component 430 includes a cooling coil 431, and the cooling coil 431 is arranged in the cooling cavity 412, wherein, as shown in Figure 14 The inlet end of the cooling coil 431 is connected with an external cooling water tank 432, and the cooling water tank 432 is arranged at the bottom of the post-rolling cooling unit 340.
[0040] Further, as shown in Figure 15As shown, the cooling assembly 500 includes a main cabinet 510, a cooling fan 540 is mounted on the back of the main cabinet 510, and the inside is divided into a first cooling liquid cavity 511 provided at the top and a second cooling liquid cavity provided at the bottom. Among them, the first cooling liquid cavity 511 is provided with a first heat exchange coil 520, the input end of which is connected to the liquid pump 420, and the output end is connected to the cooling spray beam 220; The second cooling liquid cavity is provided with a second heat exchange coil 530, the input end of which is connected to the output end of the cooling coil 431, and the output end is connected to the cooling water tank 432 through the circulating pump 433.
[0041] The cooling system realizes efficient cooling through cascade heat exchange: first, the cooling coil 431 uses the cooling water recovered from the post-rolling cooling unit 340 to pre-cool the lubricating liquid in the return collection tank 410; Then, under the forced heat dissipation of the cooling fan 540, the first cooling liquid cavity 511 is deeply cooled, and then transported to the cooling spray beam 220 for circulation; At the same time, the cooling water that has completed the pre-cooling function enters the second heat exchange coil 530 for cooling regeneration, and finally returns to the cooling water tank 432 for reuse. Thus, cascade heat exchange of the two liquids is realized, and the overall cooling efficiency is significantly improved. In addition, the liquid guide slope provided at the bottom of the return collection tank 410 can effectively guide the impurities in the lubricating liquid to concentrate and precipitate into the sediment collection tank 411, facilitating subsequent cleaning and maintenance.
[0042] As a second aspect of the present application, a rolling process for an aluminum-containing steel plate capable of inhibiting the generation of aluminum oxide is provided, comprising the following steps: S1, steel plate feeding: The billet output by the heating furnace is moved to the first feeding roller frame 110 at the conveying station, the side drive motor 141 drives the gear transmission system to drive the main bearing roller body 112 to rotate and convey the billet, at the same time, the lifting liquid pump conveys the lubricating liquid in the return collection tank 410 to each gear meshing position through the lubricating liquid discharge pipe 150 for continuous lubrication, and the transmission column 114 stably rotates under the constraint of the hoop half clamp plate 162.
[0043] S2, billet rough rolling; The first feeding roller frame 110 conveys the billet to the rough rolling unit 310 for rolling, and before rolling, the cooling spray beam 220 of the rolling auxiliary assembly 200 sprays lubricating liquid to the rolling area, and the gas spray beam 230 sprays inert gas at the same time, the lubricating liquid is used to reduce the temperature of the rolling roller and the billet and reduce friction, and the inert gas effectively expels oxygen, thereby blocking the generation of aluminum oxide when the oxide layer is damaged, at this time, the second feeding roller frame 120 is immersed in the return collection tank 410 for standby cooling, and the lubricating liquid and the peeled skin generated during the rough rolling process are collected into the return collection tank 410.
[0044] S3, feeding assembly switching: After the current billet rough rolling is completed, the loading roller frame station switching is performed: the first loading roller frame 110 corresponding half clamp plate 162 is loosened, and the immersion into the backflow collection tank 410 is lowered through the main lifting guide rail 131; at the same time, the auxiliary lifting guide rail 132 drives the pre-cooled second loading roller frame 120 to rise to the conveying station, and the docking with the clamping part 160 and the driving gear 142 is completed, and it can be understood that the alternating cooling mechanism effectively balances the upper and lower surface temperatures of the billet, and inhibits the aluminum oxide generated on the bottom surface due to the contact with the high-temperature roller frame.
[0045] S4, steel plate transfer: The rough-rolled steel plate is conveyed to the finishing rolling mill 330 through the transfer roller 320. In order to control the temperature of the transfer roller, the liquid stirring assembly 600 is started: the magnetic plate 770 is extended and engaged with the inner wall tooth groove 611 of the ring transmission belt 610, the inclined rail 636 drives the lower guide roller 635 to tilt inward, the bottom of the ring transmission belt 610 is deformed, and the stirring blade 620 is immersed in the lubricating liquid; the transmission motor 741 drives the ring transmission belt 610 to circulate, the stirring blade 620 promotes the uniform temperature in the backflow collection tank 410, and the top coating scraper 621 applies the immersed lubricating liquid to the surface of the transfer roller 320, achieving auxiliary cooling.
[0046] S5, steel plate finishing rolling and cooling The steel plate is finished by the finishing rolling mill 330, and then output through the post-rolling cooling system 340.
[0047] S6, liquid circulation: The sprayed lubricating liquid is collected in the backflow collection tank 410, and is sent to the first heat exchange coil 520 of the cooling assembly 500 for deep cooling by the liquid pump 420, and is then supplied to the cooling spray beam 220 again. The cooling water of the post-rolling cooling system 340 is recovered to the cooling water tank 432, and the lubricating liquid in the backflow collection tank 410 is pre-cooled by the cooling coil 431, and then enters the second heat exchange coil 530 for cooling and regeneration, and finally returns to the post-rolling cooling system through the circulating pump 433; the cooling fan 540 continuously forces air cooling on the first and second cooling liquid chambers to ensure the heat exchange efficiency.
[0048] S7, backflow collection tank cleaning: When cleaning is needed, the first and second loading roller frames are adjusted to a horizontal state to provide a working space, and after the lubricating liquid is emptied, the ring transmission belt 610 is moved out as a whole, and the stirring drive assembly 700 is converted to a cleaning mode: the magnetic plate 770 is retracted, the cleaning brush plate 760 is extended, the drive roller 750 is lowered to the bottom of the backflow collection tank 410, the transmission motor 741 drives the drive roller 750 to move along the transverse moving guide rail 710, the cleaning brush plate 760 sweeps the deposited substances, and the magnetic plate 770 adsorbs the iron filings and impurities, realizing efficient online cleaning of the backflow collection tank 410.
[0049] In an embodiment of the present application, it is noted that at the feeding end of the device, the conveying station and the cooling station are vertically staggered, with the conveying station being located above, which is the main working plane of the device, and the first or second feeding roller frame receives the billet and horizontally conveys it to the rough rolling mill 310.
[0050] The cooling station is directly located below the conveying station, corresponding to the inside of the return flow collecting tank 410, and when one set of feeding roller frames is performing the feeding task at the conveying station, the other set of feeding roller frames is lowered and immersed in the lubricating liquid of the return flow collecting tank 410 of the cooling station for standby cooling, and the two are alternately raised and lowered and switched between stations by the lifting driving part 130.
[0051] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A rolling apparatus for an aluminum-containing steel sheet capable of suppressing the generation of alumina, characterized by comprising: The application relates to a rolling device for aluminum-containing steel plates capable of inhibiting the generation of aluminum oxide. The rolling device comprises a feeding assembly arranged at the feeding end of the device, a rolling assembly arranged along the conveying direction of the feeding assembly, a lubricating liquid stirring assembly arranged between the intermediate roller and the backflow collecting tank, and a cooling assembly. The lubricating liquid stirring assembly comprises a ring-shaped transmission belt, the bottom of the ring-shaped transmission belt is a telescopic deformation structure, a plurality of stirring blades are vertically arranged on the outer wall of the ring-shaped transmission belt at equal intervals, the outer end of each stirring blade is vertically provided with a coating scraper for contacting the surface of the intermediate roller, a pulling component is connected to the outer side of the ring-shaped transmission belt and used for driving the ring-shaped transmission belt to move longitudinally between the intermediate roller and the backflow collecting tank, and a stirring driving assembly is arranged in the middle part of the ring-shaped transmission belt. When the lubricating liquid stirring assembly works, the magnetic plate extends from the storage groove and is embedded into the tooth groove in the inner wall of the ring-shaped transmission belt, the ring-shaped transmission belt drives the stirring blades to stir the lubricating liquid in the backflow collecting tank, and the lubricating liquid is coated on the surface of the intermediate roller based on the coating scraper, so that the temperature of the intermediate roller is reduced, and the temperature difference of the steel plate conveying caused by the temperature rise of the intermediate roller is inhibited.
2. The rolling device for aluminum-containing steel plates capable of inhibiting the generation of aluminum oxide according to claim 1, wherein the feeding assembly comprises vertically staggered upper feeding components, the upper feeding components comprise first and second upper feeding roller frames, the first and second upper feeding roller frames are connected with a lifting driving component through main and auxiliary lifting guide rails respectively, a side driving component is arranged at the top end of the lifting driving component and comprises a side driving motor and a driving gear, the driving gear is meshed with a driven gear arranged at the end of the upper feeding component, and the upper feeding component at the cooling station is immersed in the backflow collecting tank.
3. The rolling device for aluminum-containing steel plates capable of inhibiting the generation of aluminum oxide according to claim 1, wherein the rolling auxiliary assembly comprises a protective cover, the protective cover is internally provided with a cooling spray beam and a gas spray beam respectively, the cooling spray beam is connected with the cooling assembly through a pipeline, the gas spray beam is connected with an inert gas source through another pipeline, and the protective cover surrounds the rolling area and is used for restraining the action range of the lubricating liquid and the inert gas.
4. The rolling device for aluminum-containing steel plates capable of inhibiting the generation of aluminum oxide according to claim 1, wherein the backflow collecting tank is internally provided with a cooling cavity, the middle part of the bottom surface of the cooling cavity is a sediment collecting groove, the two sides of the sediment collecting groove are guide inclined surfaces, and a cooling water circulating component is arranged in the cooling cavity of the backflow collecting tank and used for guiding the water of the post-rolling cooling assembly into the cooling cavity. The cooling water circulation component includes a cooling coil arranged in the cooling cavity, an inlet end of the cooling coil is connected with an external cooling water tank, and an outlet end is connected with the cooling assembly through a circulating pump; the side part of the backflow collection tank is connected with the cooling assembly through a liquid pumping pump.
5. The aluminum-containing steel plate rolling device capable of inhibiting alumina generation according to claim 1, characterized in that: The pulling component includes a longitudinal moving guide rail, a pulling vertical plate and a pulling side plate; two groups of upper guide rollers are arranged on the inner top of the pulling side plate, and two groups of lower guide rollers are slidably arranged on the bottom of the pulling side plate through an adjusting inclined rail; the upper guide rollers and the lower guide rollers support the four corners of the inner part of the annular transmission belt respectively; the adjusting inclined rail controls the stretching and shrinking deformation of the bottom of the annular transmission belt by driving the lower guide rollers to tilt, so that the annular transmission belt is deformed downward to immerse in the backflow collection tank.
6. The aluminum-containing steel plate rolling device capable of inhibiting alumina generation according to claim 1, characterized in that: The stirring driving assembly further includes a transverse moving guide rail, a supporting back plate, a suspension sliding block and a transmission motor; the supporting back plate is slidably arranged on the transverse moving guide rail, the suspension sliding block is slidably connected with the supporting back plate through a vertical guide rail embedded in the inner part of the supporting back plate; the transmission motor is fixed on the suspension sliding block, and an output end of the transmission motor is connected with the driving roller; the driving roller moves along the transverse moving guide rail and descends into the backflow collection tank.
7. The aluminum-containing steel plate rolling device capable of inhibiting alumina generation according to claim 4, characterized in that: The cooling assembly includes a main box, and the inner part of the main box is divided into a first cooling liquid cavity and a second cooling liquid cavity; a first heat exchange coil is arranged in the first cooling liquid cavity, an input end of the first heat exchange coil is connected with the liquid pumping pump, and an output end of the first heat exchange coil is connected with a cooling spray beam; a second heat exchange coil is arranged in the second cooling liquid cavity, an input end of the second heat exchange coil is connected with the cooling coil, and an output end of the second heat exchange coil is connected with the cooling water tank through a circulating pump; a cooling fan is arranged on the back of the main box.
8. The aluminum-containing steel plate rolling device capable of inhibiting alumina generation according to claim 2, characterized in that: A top mounting plate is arranged above the side part driving component, a lubricating drainage pipe and a clamping component are arranged on the bottom surface of the top mounting plate; the clamping component includes an opening and closing supporting seat and a half clamp plate of a clamp, a plurality of rolling balls are embedded in the inner wall of the half clamp plate of the clamp, and the rolling balls are used for clamping a transmission column of the clamp; the transmission column is arranged at one end of the main bearing roller body, and a driven gear is arranged at the outer end of the transmission column; the output end of the lubricating drainage pipe is directed to the meshing position of the driving gear and the driven gear.
9. A rolling process of an aluminum-containing steel sheet capable of suppressing generation of alumina, using the rolling apparatus according to any one of claims 1 to 9, characterized by: The method includes the following steps: Alternately switching the conveying station and the cooling station through the two groups of feeding components of the feeding assembly; Synchronously spraying lubricating liquid and inert gas to the rolling area through the rolling auxiliary assembly; Stirring the lubricating liquid in the backflow collection tank through the liquid stirring assembly, and smearing the lubricating liquid to the surface of the transfer roller; Realizing the circulation and cooling of the lubricating liquid and the cooling water through the liquid collecting assembly and the cooling assembly.
10. The aluminum-bearing steel sheet rolling process inhibiting the generation of alumina according to claim 9, characterized in that: Further including the cleaning steps of the backflow collection tank: Adjusting the first feeding roller frame and the second feeding roller frame to the same height to provide a working space; Emptying the lubricating liquid in the backflow collection tank; Moving the annular transmission belt out of the working area through the pulling component; The stirring driving assembly is controlled to switch to the cleaning mode, so that the cleaning brush plate is extended and the magnetic plate is retracted; The stirring driving assembly is driven to descend into the backflow collecting groove and move along the groove body to clean the deposited substances and adsorb the iron filings.