CN117265551A - Hot rolled strip steel production process and pickling device thereof - Google Patents
Hot rolled strip steel production process and pickling device thereof Download PDFInfo
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- CN117265551A CN117265551A CN202311342408.2A CN202311342408A CN117265551A CN 117265551 A CN117265551 A CN 117265551A CN 202311342408 A CN202311342408 A CN 202311342408A CN 117265551 A CN117265551 A CN 117265551A
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- strip steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 108
- 239000010959 steel Substances 0.000 title claims abstract description 108
- 238000005554 pickling Methods 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 18
- 210000005056 cell body Anatomy 0.000 claims description 18
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of pickling equipment, in particular to a hot rolled strip steel production process and a pickling device thereof, which comprise the steps of preheating a cold plate blank through a heating furnace, wherein the aim of preheating is to enable the plate blank to reach a certain temperature so as to facilitate the subsequent rolling process; the preheated plate blank is sent into a descaling box which is used for removing impurities such as iron scales, rust and the like on the surface of the plate blank. According to the invention, through the arrangement of the two rocker arms, the pickling solution flows from left to right in the tank body, the strip steel keeps 1.5 fluctuation periods to fluctuate between the round rollers I at the two ends, and the strip steel advances rightward while fluctuating in the tank body, and the strip steel is driven to reciprocate and bend so as to damage the oxide layer on the surface of the strip steel, so that the oxide layer is broken, the pickling solution is convenient to strip and ablate the oxide layer, and meanwhile, the strip steel is bent for multiple times by controlling the conveying speed of the strip steel, so that the efficiency of cleaning the oxide layer on the surface of the strip steel is improved.
Description
Technical Field
The invention relates to the technical field of pickling equipment, in particular to a hot rolled strip steel production process and a pickling device thereof.
Background
When part of hot rolled strip steel is produced, oxide layers on the surface of a hot rough blank are removed before rough rolling and finish rolling, the influence of oxide scales on the subsequent rolling process is avoided, but after rolling forming and cooling, the blank body is still in a high-temperature state during rolling, so that the oxide layers can be formed again in the rolling forming process, the oxide layers on the surface of the strip steel need to be cleaned by pickling again before rolling, the thickness of the hot rolled strip steel produced by a modern rolling mill is stable, the compactness is higher, therefore, in order to improve the pickling property of oxide scales, the crack of the oxide layers needs to be increased by adopting a scale breaking device, the conventional mechanical scale breaking device is used for bending and breaking scales on the strip steel, but the rolling is generally realized by adopting roller sets, namely, a corresponding roller set is needed for bending the strip steel once, so that the strip steel is difficult to bend for multiple times, and the scale breaking effect is general.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a hot rolled strip steel production process and a pickling device thereof, through the arrangement of two rocker arms, pickling solution flows in a tank body from left to right, strip steel keeps 1.5 fluctuation periods to fluctuate between round rollers I at two ends, strip steel moves forwards to the right while fluctuating in the tank body, and the strip steel is driven to reciprocate to bend so as to damage an oxide layer on the surface of the strip steel, so that the oxide layer is broken, stripping and ablation of the oxide layer are facilitated by the pickling solution, and meanwhile, the strip steel is bent for a plurality of times by controlling the conveying speed of the strip steel, so that the cracking effect of the oxide layer is improved, and the cleaning efficiency of the oxide layer on the surface of the strip steel is improved.
The aim of the invention can be achieved by the following technical scheme:
a hot rolled strip steel production process is characterized by comprising the following specific production steps of:
step one: preheating a cold plate blank through a heating furnace, wherein the aim of preheating is to enable the plate blank to reach a certain temperature so as to facilitate the subsequent rolling process;
step two: the preheated plate blank is sent into a descaling box, and the descaling box is used for removing impurities such as iron scales, rust and the like on the surface of the plate blank;
step three: rough rolling is carried out on the plate blank after descaling through a plurality of rough rolling mills, the purpose of rough rolling is to reduce the thickness of the plate blank to a certain extent, and then the rough rolled plate blank is sent into a finishing mill for finish rolling, so that a strip steel rough body is manufactured;
step four: feeding the rough strip steel into a laminar flow cooler for cooling;
step five: pickling the cooled strip steel through a pickling device, so that an oxide layer formed on the surface of the strip steel again is removed, and then cleaning and drying the strip steel;
step six: and coiling the strip steel by a coiling machine to form a reel.
The utility model provides a hot rolling belted steel pickling device, includes the cell body, the both sides at cell body both ends have all linked firmly the support arm, and rotate between the top of two immediately adjacent support arms and be connected with two driving rollers, fixedly communicate between the both ends of a lateral wall of cell body has the pump pipe, and the intermediate position fixed mounting of pump pipe has the liquid pump, the inside of cell body is provided with conveying mechanism, conveying mechanism includes two drive modules that are located the inside both ends of cell body respectively, drive module includes frame, frame's bottom links firmly with the interior bottom surface of cell body, rotate between frame's both sides inner wall and be connected with the drive roller, the top of drive roller is provided with the impression roller, two be provided with synchronous module between the impression roller, frame's both sides lateral wall rotates and is connected with the rocking arm, and is located and rotate between the one end of two rocking arms of same one and be connected with two circle roller, the other ends of the two rocker arms positioned on the same side are rotationally connected with a linkage rod, a round roller II is arranged between the two frames, a transmission module is arranged on the inner wall of the other side of the tank body, a pushing module is arranged on the inner wall of the other side of the tank body, pickling solution flows from left to right in the tank body, the strip steel is clamped and pressed by the pressing roller matched with the driving roller, the synchronous module drives the two driving rollers to synchronously rotate, so that the strip steel is conveyed from left to right, the pushing module drives the two rocker arms to positively and negatively deflect through the linkage rod, meanwhile, the round roller II is driven to reciprocate up and down through the transmission module, the strip steel is made to fluctuate in the tank body, the strip steel is made to fluctuate up and down in 1.5 fluctuation periods between the round rollers I at the two ends, and is made to advance rightward when fluctuating in the tank body, the strip steel is made to reciprocate and bend by driving the strip steel, so that the oxide layer on the surface of the strip steel is damaged, the oxide layer is broken, so that the pickling solution is convenient for stripping and ablating the oxide layer, and the efficiency of cleaning the oxide layer on the surface of the strip steel is improved.
The method is further characterized in that: the pushing module comprises a hydraulic rod, one end of the hydraulic rod is fixedly connected with the top surface of the other side wall of the tank body, a sliding seat is slidably connected with the top end of the other side wall of the tank body, the sliding seat is fixedly connected with the output end of the hydraulic rod, the bottom end of the sliding seat is fixedly connected with an auxiliary rod, the bottom end of the auxiliary rod is slidably connected with a main rod, the bottom end of the main rod is fixedly sleeved with a linkage rod on the adjacent side, the output end of the hydraulic rod stretches back and forth, so that the linkage rod is driven to move left and right in a reciprocating manner, and the linkage rod is driven to rotate forward when the output end of the hydraulic rod stretches.
The method is further characterized in that: the synchronous module comprises a driving motor, the driving motor is fixedly arranged on one frame at one end position of the tank body, one side of the top end of the other frame is rotationally connected with a double-groove belt pulley II, the output end of the driving motor is fixedly sleeved with a double-groove belt pulley I, the inner wall of the driving roller is fixedly sleeved with a shaft lever I, the shaft lever I is rotationally sleeved with a frame which is in close proximity, one end of the shaft lever I is fixedly sleeved with a single-groove belt pulley, belts are connected between the double-groove belt pulley I and the single-groove belt pulley II in the close proximity position in a transmission manner, belts are connected between the double-groove belt pulley II and the single-groove belt pulley at the side end in the close proximity, and the driving motor drives the two driving rollers to synchronously rotate, so that strip steel is conveyed from left to right.
The method is further characterized in that: the top of frame is provided with the pressure module, the pressure module includes the fixed plate, the both sides inner wall sliding connection of fixed plate and frame, the inner wall fixed sleeve who presses the roller has cup jointed axostylus axostyle two, the both ends of axostylus axostyle two rotate and have cup jointed the rotation seat, the inner wall sliding connection of rotation seat and frame, the telescopic link has been linked firmly between one end of rotation seat and the fixed plate, the lateral wall sliding sleeve of telescopic link has pressed the spring, all linked firmly the cylinder between the top surface both ends of fixed plate and the interior bottom surface of frame, and the cylinder drives the fixed plate and moves down, and the fixed plate passes through the downwardly extrusion of spring and rotates the seat to make to press the roller move down, press down the belted steel through pressing roller cooperation drive roller and carry out the centre gripping and compress tightly, avoid skidding between belted steel and the drive roller.
The method is further characterized in that: the transmission module comprises a rod, the rod is in sliding connection with the inner wall of the other side of the tank body, a push rod is rotationally connected between one end of the rod and the linkage rod, the inner wall of the other side of the tank body is rotationally connected with a central shaft, the outer side wall of the central shaft is fixedly sleeved with a ratchet wheel, one end of the central shaft is fixedly sleeved with a disc, the outer edge position of one side wall of the disc is fixedly connected with a cylinder, the top end of the other side wall of the tank body is fixedly connected with a sliding frame, the inner wall of the sliding frame is in sliding connection with a support, one end of the support is rotationally connected with two round rollers II, the bottom side of the other end of the support is fixedly connected with a rail rod, the cylinder is movably connected with the inner wall of the rail rod, the ratchet wheel is characterized in that ratchet bars are arranged on two sides of the ratchet wheel, the ratchet bars are pulled by a push rod to move left when the linkage bars move left, the ratchet wheel is driven to rotate positively through engagement of the ratchet bars on the lower side and the ratchet wheel when the bars move left, the ratchet bars on the upper side slide between the ratchet bars and the ratchet wheel when moving left, so that the disc is driven to rotate positively, the disc drives the rail bars to reciprocate up and down through cylinders when rotating positively, the round rollers II are driven to reciprocate up and down, 1.5 fluctuation periods of the strip steel between the round rollers I at two ends are kept to fluctuate up and down, the strip steel is enabled to advance rightward when fluctuating in the tank body, the strip steel is driven to fluctuate, and the strip steel is bent reciprocally, so that the oxide layer on the surface of the strip steel is damaged.
The method is further characterized in that: an elastic block is fixedly connected between the inner side walls of the adjacent sides of the ratchet rods and the rods, so that the ratchet rods can conveniently deviate from the ratchet wheels to move, and when one ratchet rod is meshed with the ratchet wheels, the other ratchet rod and the ratchet wheels slide.
The method is further characterized in that: the outer side wall cladding of drive roller is fixed with the skid resistant course, combines the extrusion of impression roller pair belted steel, avoids drive roller and belted steel to skid, makes things convenient for two drive rollers to belted steel synchronous drive.
The invention has the beneficial effects that:
1. through the arrangement of the two rocker arms, the pickling solution flows from left to right in the tank body, the strip steel is clamped and pressed by the pressing roller matched with the driving roller, the synchronous module drives the two driving rollers to synchronously rotate, so that the strip steel is conveyed from left to right, the pushing module drives the two rocker arms to positively and negatively deflect through the linkage rod, the strip steel is enabled to move rightwards while fluctuating in the tank body, the oxide layer on the surface of the strip steel is broken, the pickling solution is convenient to enter between the oxide layer and the strip steel substrate, the pickling solution is convenient to strip and ablate the oxide layer, and the efficiency of cleaning the oxide layer on the surface of the strip steel is improved;
2. through the setting of transmission module and circle roller two, drive circle roller two reciprocating motion from top to bottom through transmission module when the trace moves about for belted steel is undulant in the cell body, realizes that belted steel keeps 1.5 undulant cycle to undulant from top to bottom between circle roller one at both ends, thereby conveniently realizes belted steel undulant in the cell body, simultaneously through the control to belted steel conveying speed to and the adjustment of trace reciprocating motion's speed, realizes carrying out bending many times to belted steel when belted steel removes to on the right side from frames on the left side, improves the effect of breaking to the oxide layer, realizes buckling to belted steel is reciprocal, improves the effect of breaking to the oxide layer on belted steel surface, conveniently influences the clearance to the oxide layer.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the structure of a cell body of the invention;
FIG. 2 is a schematic top view of the cell body of the present invention;
FIG. 3 is a schematic view showing the internal structure of the cell body according to the present invention;
FIG. 4 is a schematic diagram of a driving module structure according to the present invention;
FIG. 5 is a schematic diagram of a transmission module structure according to the present invention;
FIG. 6 is a schematic view of a pole structure in accordance with the present invention;
FIG. 7 is a schematic diagram of a push module configuration in accordance with the present invention;
FIG. 8 is a schematic view of the structure of the lever and rocker arm of the present invention.
In the figure: 100. a cell body; 110. a support arm; 120. a driving roller; 130. a pump tube; 131. a liquid pump; 200. a conveying mechanism; 210. a driving module; 211. frames; 212. a driving roller; 213. a first shaft lever; 214. a single groove belt wheel; 215. a pressing roller; 216. a second shaft lever; 220. a pressurizing module; 221. a rotating seat; 222. a telescopic rod; 223. extruding a spring; 224. a cylinder; 225. a fixing plate; 230. a synchronization module; 231. a driving motor; 232. a double-groove belt wheel I; 233. a double-groove belt wheel II; 240. a rocker arm; 241. a round roller I; 250. a linkage rod; 251. a push rod; 260. a second round roller; 270. a transmission module; 271. a bracket; 272. a rail rod; 273. a carriage; 274. a disc; 275. a cylinder; 276. a central shaft; 277. a ratchet wheel; 278. a ratchet rod; 279. pole; 280. a pushing module; 281. a hydraulic rod; 282. a sliding seat; 283. an auxiliary rod; 284. and (3) a main rod.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 8, a hot rolled strip production process is characterized in that the hot rolled strip production process comprises the following specific steps:
step one: preheating a cold plate blank through a heating furnace, wherein the aim of preheating is to enable the plate blank to reach a certain temperature so as to facilitate the subsequent rolling process;
step two: the preheated plate blank is sent into a descaling box, and the descaling box is used for removing impurities such as iron scales, rust and the like on the surface of the plate blank;
step three: rough rolling is carried out on the plate blank after descaling through a plurality of rough rolling mills, the purpose of rough rolling is to reduce the thickness of the plate blank to a certain extent, and then the rough rolled plate blank is sent into a finishing mill for finish rolling, so that a strip steel rough body is manufactured;
step four: feeding the rough strip steel into a laminar flow cooler for cooling;
step five: pickling the cooled strip steel through a pickling device, so that an oxide layer formed on the surface of the strip steel again is removed, and then cleaning and drying the strip steel;
step six: and coiling the strip steel by a coiling machine to form a reel.
A hot-rolled strip steel pickling device comprises a tank body 100, two sides of two ends of the tank body 100 are fixedly connected with support arms 110, two transmission rollers 120 are rotatably connected between the top ends of the two adjacent support arms 110, a pump pipe 130 is fixedly communicated between two ends of one side wall of the tank body 100, a liquid pump 131 is fixedly arranged in the middle of the pump pipe 130, a conveying mechanism 200 is arranged in the tank body 100, the conveying mechanism 200 comprises two driving modules 210 which are respectively positioned at two ends in the tank body 100, the driving modules 210 comprise frames 211, the bottom ends of frames 211 are fixedly connected with the inner bottom surface of the tank body 100, driving rollers 212 are rotatably connected between the inner walls of two sides of the frames 211, a pressing roller 215 is arranged above the driving rollers 212, a synchronization module 230 is arranged between the two pressing rollers 215, two outer side walls of the two sides of the frames 211 are rotatably connected with a rocker arm 240, two round rollers 241 are rotatably connected between one ends of the two rocker arms 240 positioned at the same end, the other ends of the two rocker arms 240 positioned on the same side are rotationally connected with a linkage rod 250, a round roller two 260 is arranged between the two frames 211, a transmission module 270 is arranged on the inner wall of the other side of the tank body 100, a pushing module 280 is arranged on the inner wall of the other side of the tank body 100, pickling solution flows from left to right in the tank body 100, the strip steel is clamped and pressed by the pressing roller 215 in cooperation with the driving rollers 212, the synchronous module 230 drives the two driving rollers 212 to synchronously rotate, so that the strip steel is conveyed from left to right, the pushing module 280 drives the two rocker arms 240 to positively and negatively deflect through the linkage rod 250, meanwhile, the transmission module 270 drives the round roller two 260 to reciprocate up and down, so that the strip steel fluctuates in the tank body 100, 1.5 fluctuation periods are kept between the round rollers one 241 at the two ends of the strip steel, the strip steel is caused to move up and down while the strip steel fluctuates in the tank body 100, the strip steel is driven to wave to bend in a reciprocating manner, so that the oxide layer on the surface of the strip steel is damaged, the oxide layer is broken, the oxide layer is conveniently stripped and ablated by the pickling solution, and the efficiency of cleaning the oxide layer on the surface of the strip steel is improved.
The pushing module 280 comprises a hydraulic rod 281, one end of the hydraulic rod 281 is fixedly connected with the top surface of the other side wall of the tank body 100, the top end of the other side wall of the tank body 100 is slidably connected with a sliding seat 282, the sliding seat 282 is fixedly connected with the output end of the hydraulic rod 281, the bottom end of the sliding seat 282 is fixedly connected with an auxiliary rod 283, the bottom end of the auxiliary rod 283 is slidably connected with a main rod 284, the bottom end of the main rod 284 is fixedly sleeved with a linkage rod 250 on the adjacent side, the output end of the hydraulic rod 281 stretches back and forth, so that the linkage rod 250 is driven to move left and right in a reciprocating manner, and the output end of the hydraulic rod 281 stretches, so that the rocker arm 240 is driven to rotate forward.
The synchronous module 230 comprises a driving motor 231, the driving motor 231 is fixedly arranged on one frame 211 at one end position of the pool body 100, one side of the top end of the other frame 211 is rotationally connected with a double-groove belt pulley II 233, the output end of the driving motor 231 is fixedly sleeved with a double-groove belt pulley I232, the inner wall of the driving roller 212 is fixedly sleeved with a shaft rod I213, the shaft rod I213 is rotationally sleeved with a frame 211 in the close vicinity, one end of the shaft rod I213 is fixedly sleeved with a single-groove belt pulley 214, belts are in transmission connection between the double-groove belt pulley I232 and the single-groove belt pulley II 233 in the close vicinity, the double-groove belt pulley II 233 and the single-groove belt pulley 214 in the close vicinity are in transmission connection, the driving motor 231 drives the two driving rollers 212 to synchronously rotate, accordingly, the top end of the frame 211 is provided with a pressing module 220, the pressing module 220 comprises a fixing plate 225, the fixing plate 225 is in sliding connection with the inner walls of the two sides of the frame 211, the two ends of the shaft rod I213 are rotationally sleeved with a single-groove belt pulley 214, the two ends of the rotating seat 221 are rotationally connected with the inner wall of the fixing plate 225, the fixing plate 225 is fixedly connected with the pressing roller 225, and the pressing roller 225 is fixedly connected with the pressing roller 225 through the fixing plate 225, and the pressing roller 225 is fixedly connected with the upper surface of the pressing roller 225 by the fixing plate 224, and the pressing roller 225 is fixedly connected with the pressing roller body 215, and the pressing roller body is fixedly connected with the pressing plate 215, and the pressing plate 215 is matched with the pressing plate, and the pressing plate is fixedly arranged by the pressing plate and the pressing plate 215, and the pressing plate is matched with the pressing plate.
The transmission module 270 comprises rods 279, rods 279 which are in sliding connection with the inner wall of the other side of the tank body 100, a push rod 251 is rotatably connected between one end of rods 279 and the linkage rod 250, the inner wall of the other side of the tank body 100 is rotatably connected with a central shaft 276, the outer side wall of the central shaft 276 is fixedly sleeved with a ratchet wheel 277, one end of the central shaft 276 is fixedly sleeved with a circular disk 274, the outer edge position of one side wall of the circular disk 274 is fixedly connected with a cylinder 275, the top end of the other side wall of the tank body 100 is fixedly connected with a sliding frame 273, the inner wall of the sliding frame 273 is in sliding connection with a bracket 271, one end of the bracket 271 is rotatably connected with two round rollers 260, the bottom side of the other end of the bracket 271 is fixedly connected with a rail rod 272, the cylinder 275 is movably connected with the inner wall of the rail rod 272, ratchet rods 278 are respectively arranged on two sides of the ratchet wheel 277, when the linkage rod 250 moves leftwards, the ratchet rod 279 is pulled by the push rod 251, when the ratchet rod 279 moves leftwards, the ratchet rod 277 is driven by the meshing of the ratchet rod 278 on the lower side to the ratchet wheel 277, the upper ratchet rod 278 slides between the ratchet wheel 277 when moving leftwards, so as to drive the circular disc 274 to rotate forwards, the circular disc 274 drives the rail rod 272 to reciprocate upwards and downwards through the cylinder 275 during forward rotation, so as to drive the round roller two 260 to reciprocate upwards and downwards, the strip steel keeps 1.5 fluctuation periods to fluctuate between the round rollers one 241 at the two ends, the strip steel is enabled to advance rightwards while fluctuating in the tank body 100, the strip steel is driven to vibrate and bend reciprocally, thereby the oxide layer on the surface of the strip steel is damaged, an elastic block is fixedly connected between the inner side walls of the ratchet rods 278 and the adjacent sides of the rod 279, the ratchet rod 278 is convenient to deviate from the ratchet wheel 277 to move, when one ratchet rod 278 is meshed with the ratchet wheel 277, the other ratchet rod 278 slides with the ratchet wheel 277, the outer side wall of the driving roller 212 is fixedly coated with an anti-skid layer, the extrusion of the strip steel is combined with the pressing roller 215, the driving rollers 212 are prevented from slipping with the strip steel, and the two driving rollers 212 can synchronously drive the strip steel conveniently.
Working principle: when the device is used, the pickling solution is added into the tank body 100, the liquid pump 131 is started, so that the pickling solution flows from left to right in the tank body 100, the air cylinder 224 drives the fixed plate 225 to move downwards, the fixed plate 225 downwards extrudes the rotating seat 221 through the extrusion spring 223, so that the pressing roller 215 moves downwards, the pressing roller 215 is matched with the driving roller 212 to clamp and press the strip steel, the driving motor 231 is started, and the driving motor 231 drives the two driving rollers 212 to synchronously rotate, so that the strip steel is conveyed from left to right;
when the output end of the hydraulic lever 281 stretches reciprocally, the linkage lever 250 is driven to move left, the linkage lever 250 moves left to drive the two rocker arms 240 to rotate forward, so that the first left round roller 241 deflects downward, the first right round roller 241 deflects upward, the lever 279 is pulled by the push rod 251 to move left when the linkage lever 250 moves left, the ratchet 277 is driven to rotate forward by the meshing of the ratchet lever 278 on the lower side and the ratchet 277 when the lever 279 moves left, the ratchet lever 278 on the upper side slides between the ratchet lever 278 and the ratchet 277 when moving left, thereby driving the circular disk 274 to rotate forward, the circular disk 274 drives the rail lever 272 to move up and down reciprocally through the cylinder 275 when rotating forward, so that the second left round roller 260 moves from the middle height position to the low position when the first left round roller 241 deflects downward from the high position to one end of the middle rocker arm 240 is in the horizontal state, when the left round roller I241 deflects downwards from the middle position to the low position, the second round roller 260 moves upwards from the low position to the high position, and then the hydraulic rod 281 drives the linkage rod 250 to move rightwards, so that the ratchet wheel 277 is continuously driven to rotate forwards by the ratchet rod 278 on the upper side of the rod 279, when the left round roller I241 deflects upwards, the second round roller 260 moves from the middle position to the high position and returns to the middle position, the strip steel is enabled to fluctuate upwards and downwards in 1.5 fluctuation periods between the round rollers I241 at the two ends, the strip steel is enabled to move rightwards while fluctuating in the tank body 100, the strip steel is driven to reciprocate to bend, the oxide layer on the surface of the strip steel is damaged, the oxide layer is broken, the pickling solution is convenient to strip and ablate the oxide layer, and the efficiency of cleaning the oxide layer on the surface of the strip steel is improved.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative and explanatory of the invention, as various modifications and additions may be made to the particular embodiments described, or in a similar manner, by those skilled in the art, without departing from the scope of the invention or exceeding the scope of the invention as defined in the claims.
Claims (9)
1. A hot rolled strip steel production process is characterized by comprising the following specific production steps of:
step one: preheating a cold plate blank through a heating furnace, wherein the aim of preheating is to enable the plate blank to reach a certain temperature so as to facilitate the subsequent rolling process;
step two: the preheated plate blank is sent into a descaling box, and the descaling box is used for removing impurities such as iron scales, rust and the like on the surface of the plate blank;
step three: rough rolling is carried out on the plate blank after descaling through a plurality of rough rolling mills, the purpose of rough rolling is to reduce the thickness of the plate blank to a certain extent, and then the rough rolled plate blank is sent into a finishing mill for finish rolling, so that a strip steel rough body is manufactured;
step four: feeding the rough strip steel into a laminar flow cooler for cooling;
step five: pickling the cooled strip steel through a pickling device, so that an oxide layer formed on the surface of the strip steel again is removed, and then cleaning and drying the strip steel;
step six: and coiling the strip steel by a coiling machine to form a reel.
2. The utility model provides a hot rolled strip steel pickling device, its characterized in that includes cell body (100), support arm (110) have all been linked firmly to both sides at cell body (100) both ends, and rotationally connect two driving rolls (120) between the top of two next-door neighbour's support arm (110), fixedly communicate between the both ends of a lateral wall of cell body (100) has pump pipe (130), and the intermediate position fixed mounting of pump pipe (130) has liquid pump (131), the inside of cell body (100) is provided with conveying mechanism (200), conveying mechanism (200) include two drive modules (210) that are located respectively at the inside both ends of cell body (100), drive modules (210) include frame (211), the bottom of frame (211) links firmly with the interior bottom surface of cell body (100), rotationally connect drive roller (212) between the both sides inner wall of frame (211), the top of drive roller (212) is provided with pressure roller (215), two be provided with synchronous module (230) between pressure roller (215), the outside of frame (211) is connected with both sides (240) and is located between two rocker arms (240) and one end (240) are connected with between two rocker arms (240) and one end is connected with one and one end (240), a round roller two (260) is arranged between the two frames (211), a transmission module (270) is arranged on the inner wall of the other side of the tank body (100), and a pushing module (280) is arranged on the inner wall of the other side of the tank body (100).
3. The hot-rolled strip steel pickling device according to claim 2, wherein the pushing module (280) comprises a hydraulic rod (281), one end of the hydraulic rod (281) is fixedly connected with the top surface of the other side wall of the tank body (100), the top end of the other side wall of the tank body (100) is slidably connected with a sliding seat (282), the sliding seat (282) is fixedly connected with the output end of the hydraulic rod (281), the bottom end of the sliding seat (282) is fixedly connected with an auxiliary rod (283), the bottom end of the auxiliary rod (283) is slidably connected with a main rod (284), and the bottom end of the main rod (284) is fixedly sleeved with a linkage rod (250) on the adjacent side.
4. The hot rolled strip pickling device according to claim 2, wherein the synchronization module (230) comprises a driving motor (231), the driving motor (231) is fixedly installed on one frame (211) at one end position of the tank body (100), one side of the top end of the other frame (211) is rotationally connected with a double-groove belt pulley II (233), the output end of the driving motor (231) is fixedly sleeved with a double-groove belt pulley I (232), the inner wall of the driving roller (212) is fixedly sleeved with a shaft lever I (213), the shaft lever I (213) is rotationally sleeved with a frame (211) in the close vicinity, one end of the shaft lever I (213) is fixedly sleeved with a single-groove belt pulley (214), belts are in transmission connection between the double-groove belt pulley I (232) and the single-groove belt pulley II (233) at the close vicinity, and belts are in transmission connection between the double-groove belt pulley II (233) and the single-groove belt pulley (214) at the close vicinity side end.
5. The hot rolled strip steel pickling device according to claim 2, wherein a pressurizing module (220) is arranged at the top end of the frame (211), the pressurizing module (220) comprises a fixing plate (225), the fixing plate (225) is in sliding connection with inner walls of two sides of the frame (211), a shaft rod II (216) is fixedly sleeved on the inner wall of the pressing roller (215), a rotating seat (221) is rotatably sleeved on two ends of the shaft rod II (216), the rotating seat (221) is in sliding connection with the inner wall of the frame (211), a telescopic rod (222) is fixedly connected between one end of the rotating seat (221) and the fixing plate (225), an extruding spring (223) is fixedly connected with the outer side wall of the telescopic rod (222) in a sliding manner, and air cylinders (224) are fixedly connected between two ends of the top surface of the fixing plate (225) and the inner bottom surface of the frame (211).
6. The hot rolled strip steel pickling device according to claim 2, wherein the transmission module (270) comprises a rod (279), the rod (279) is in sliding connection with the inner wall of the other side of the tank body (100), a push rod (251) is rotationally connected between one end of the rod (279) and the linkage rod (250), a central shaft (276) is rotationally connected with the inner wall of the other side of the tank body (100), a ratchet wheel (277) is fixedly sleeved on the outer side wall of the central shaft (276), a circular disc (274) is fixedly sleeved on one end of the central shaft (276), a cylinder (275) is fixedly connected to the outer edge of one side wall of the circular disc (274), and ratchet rods (278) are respectively arranged on two sides of the ratchet wheel (277).
7. The hot-rolled strip steel pickling device according to claim 6, wherein a carriage (273) is fixedly connected to the top end of the other side wall of the tank body (100), a bracket (271) is slidably connected to the inner wall of the carriage (273), one end of the bracket (271) is rotatably connected with two round rollers (260), a rail rod (272) is fixedly connected to the bottom side of the other end of the bracket (271), and the cylinder (275) is movably connected with the inner wall of the rail rod (272).
8. The hot rolled strip pickling apparatus according to claim 6, wherein an elastic block is fixedly connected between the ratchet rod (278) and the immediately adjacent side inner side wall of the rod (279).
9. The hot rolled strip pickling device according to claim 2, wherein the outer side wall of the driving roller (212) is fixedly coated with an anti-slip layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311342408.2A CN117265551A (en) | 2023-10-17 | 2023-10-17 | Hot rolled strip steel production process and pickling device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311342408.2A CN117265551A (en) | 2023-10-17 | 2023-10-17 | Hot rolled strip steel production process and pickling device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117265551A true CN117265551A (en) | 2023-12-22 |
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ID=89214302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311342408.2A Pending CN117265551A (en) | 2023-10-17 | 2023-10-17 | Hot rolled strip steel production process and pickling device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117265551A (en) |
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2023
- 2023-10-17 CN CN202311342408.2A patent/CN117265551A/en active Pending
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