Equipment for removing oxide scale at inlet of roughing mill

Abstract

The invention relates to the technical field of roughing mills, and particularly discloses roughing mill inlet scale removing equipment which comprises two fixing frames, a plurality of conveying rollers are installed between the two fixing frames, vertical rods are arranged at the tops of the two fixing frames, a first moving plate is installed between the two vertical rods, and a second moving plate is arranged at the bottom of the first moving plate. And two third moving plates are installed at the bottom of the second moving plate, first cleaning mechanisms are installed on one sides of the two third moving plates, through grooves are formed in the two fixing frames, rectangular plates are installed in the two through grooves, and second cleaning mechanisms are installed on one sides of the two rectangular plates. According to the plate blank cleaning device, through cooperation of the first cleaning mechanism and the second cleaning mechanism, oxide scales at the bottom of a plate blank can be cleaned up, so that the effect of comprehensively cleaning and removing the oxide scales on the surface of the plate blank can be achieved, subsequent rolling treatment of a roughing mill on the plate blank is facilitated, and the rolling quality of the roughing mill on the plate blank is indirectly improved.

Description

Technical Field

[0001] The invention relates to the technical field of roughing mills, and in particular to equipment for removing iron oxide scale at an inlet of a roughing mill. Background Art

[0002] The roughing mill is a machine for rolling steel. With the development of economy and the continuous improvement of science and technology, my country's manufacturing industry has developed very rapidly, and the steel industry has developed faster and faster. After the slab is heated by the heating furnace, the iron oxide scale on the steel plate needs to be removed before the slab enters the roughing mill to prevent the iron oxide scale from being embedded in the steel plate during the rolling process and to prevent the iron oxide scale from scratching the steel surface. Therefore, it is necessary to use special iron oxide scale removal equipment to clean and remove it.

[0003] When removing the iron oxide scale from the surface of the slab, the iron oxide scale removing equipment in the prior art usually uses a nozzle to spray water to the surface of the slab to flush away the iron oxide scale. However, since the bottom of the slab is in contact with multiple rollers of the conveying device, the cleaning effect of the iron oxide scale on the bottom of the slab is poor, and the iron oxide scale on the bottom of the slab cannot be cleaned and removed completely, so that the subsequent rough rolling mill will still be adversely affected by the iron oxide scale during the processing of the slab, which is not conducive to the processing of the slab by the rough rolling mill, resulting in the surface quality of the slab after rolling failing to reach an ideal state. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a device for removing iron oxide scale at the entrance of a roughing mill.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for removing iron oxide scale at the entrance of a roughing mill comprises two fixed frames, a plurality of conveying rollers are installed between the two fixed frames, vertical bars are arranged on the tops of the two fixed frames, a first movable plate is installed between the two vertical bars, a second movable plate is arranged on the bottom of the first movable plate, two third movable plates are symmetrically installed on the bottom of the second movable plate, a first cleaning mechanism for removing iron oxide scale from the surface of a slab is installed on the adjacent sides of the two third movable plates, through grooves are provided inside the two fixed frames, rectangular plates are installed inside the two through grooves, and a second cleaning mechanism for removing iron oxide scale from the bottom of the slab is installed on the outer walls of the adjacent sides of the two rectangular plates.

[0007] Optionally, a first slide groove is formed on the top of the two fixing frames, a first sliding block is installed inside the two first slide grooves, and the top ends of the two first sliding blocks are connected to the vertical rods adjacent thereto.

[0008] Optionally, the outer wall of the side close to the two vertical rods is installed with a first groove, the first driving screw rod and the first sliding rod are respectively installed inside the two first grooves, and the two ends of the first movable plate are respectively matched with the outer walls of the first driving screw rod and the first sliding rod.

[0009] Optionally, a second groove is formed at the bottom end of the first movable plate, a second driving screw is installed inside the second groove, a sliding block is installed on the outer wall of the second driving screw, a driving motor is installed at the bottom end of the sliding block, and the output end of the driving motor is connected and fixed to the top center position of the second movable plate.

[0010] Optionally, a third groove is formed at the bottom of the second movable plate, a first double-headed screw is rotatably mounted inside the third groove, and the top ends of the two third movable plates are matched with the outer wall of the first double-headed screw.

[0011] Optionally, the first cleaning mechanism includes two mounting plates, and the outer walls of the two third movable plates close to one side are each provided with a second slide groove, and the interiors of the two second slide grooves are each provided with a second slider, and the ends of the two second sliders away from the second slide grooves are rotatably connected to the mounting plates close to them.

[0012] Optionally, multiple high-pressure nozzles are installed inside the two mounting plates, a first scraper is rotatably installed at the bottom of the two mounting plates, two connecting blocks are provided on the outer walls of the two mounting plates on the side away from each other, and detection probes are installed between the two connecting blocks and the mounting plates through set bolt threads.

[0013] Optionally, the second cleaning mechanism includes a third drive screw and a third slide rod installed on the outer wall of the two fixed frames away from each other, and connecting rods are installed on the outer walls of the two rectangular plates away from each other, and the two connecting rods respectively cooperate with the outer walls of the third drive screw and the third slide rod.

[0014] Optionally, a fourth groove is provided on the outer wall on the side where the two rectangular plates are close to each other, a second double-headed screw is rotatably installed inside the two fourth grooves, two moving blocks are symmetrically installed on the outer walls of the two second double-headed screws, a second scraper is provided on the outer wall on the side where the two fixed plates are close to each other, a rotating rod is rotatably installed on one end of the two moving blocks away from the second double-headed screw, and the two rotating rods are rotatably connected to the second scraper close to them at one end away from the moving blocks.

[0015] Optionally, the bottoms of the two second scrapers are each provided with a receiving groove, cleaning brushes are installed inside the two receiving grooves, the bottom ends of the two connecting rods are commonly connected to a collecting box, and a filter is installed inside the collecting box.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, the four sides and top iron oxide scale of the slab can be automatically cleaned by setting up the first cleaning mechanism, and the iron oxide scale at the bottom of the slab can be cleaned by cooperating with the first cleaning mechanism and the second cleaning mechanism, thereby achieving the effect of comprehensive cleaning and removal of the iron oxide scale on the surface of the slab, facilitating the subsequent rolling processing of the slab by the rough rolling mill, and indirectly improving the rolling quality of the slab by the rough rolling mill.

[0018] 2. In the present invention, during the process of cleaning the iron oxide scale on the surface of the slab, the collection box located under the multiple conveying rollers can collect the iron oxide scale and can filter and remove excess water with the help of a filter net, thereby realizing the separate centralized collection of the cleaned iron oxide scale, facilitating the subsequent centralized treatment of the iron oxide scale.

[0019] 3. In the present invention, after the slab is rolled by the rough rolling mill, it is conveyed to the top of multiple conveying rollers again, and the rolled slab is moved to the bottom of the first cleaning mechanism by means of the reversal of the multiple conveying rollers. At this time, the two third movable plates can be controlled to move in opposite directions so that the distance between the two third movable plates is greater than the width of the rolled slab, and the two third movable plates are controlled to move downward together. Since length scales are provided on one side outer wall of the two third movable plates, after the bottom ends of the two third movable plates are flush with the bottom of the rolled slab, the thickness of the rolled slab can be automatically measured without the need for manual measurement with the help of measuring tools, thereby improving the efficiency of measuring the thickness of the slab.

[0020] 4. In the present invention, after the rough rolling mill is used, a small amount of impurities will inevitably exist on the surface of the multiple conveyor rollers. The cleaning brushes at the bottom of the two second scrapers are controlled to slide downward and extend out to contact the outer walls of the multiple conveyor rollers. As the multiple conveyor rollers are controlled to continue to rotate, and the two second double-headed screws are controlled to continuously rotate forward and reverse, the two cleaning brushes are driven to automatically clean and remove the impurities attached to the outer walls of the multiple conveyor rollers; and with the help of the rotation of the third driving screw, the second scrapers of the two second cleaning mechanisms are driven to move on the surfaces of the multiple conveyor rollers together, thereby driving the two cleaning brushes to clean and remove all impurities attached to the outer walls of the conveyor rollers, without the need for subsequent manual cleaning, thereby improving the maintenance efficiency of the multiple conveyor rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of an iron oxide scale removal device at the entrance of a roughing mill proposed by the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of two fixing frames and a plurality of conveying rollers in the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of two vertical rods and a first movable plate in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the sliding block and the second driving screw rod in the present invention;

[0026] Figure 5 It is a schematic structural diagram of the first double-headed screw in the present invention;

[0027] Figure 6 It is a structural schematic diagram of the first cleaning mechanism in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the collection box in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the second cleaning mechanism in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the cleaning brush in the present invention.

[0031] In the figure: 1, fixed frame; 2, conveying roller; 3, through groove; 4, first slide groove; 5, vertical rod; 6, first moving plate; 7, second moving plate; 8, third moving plate; 9, rectangular plate; 10, connecting rod; 11, collecting box; 12, third slide rod; 13, first slide block; 14, first groove; 15, first slide rod; 16, mounting plate; 17, second groove; 18, second driving screw rod; 19, sliding block; 20, driving motor; 21 , the first scraper; 22, the third groove; 23, the first drive screw; 24, the second slide groove; 25, the second slider; 26, the high-pressure nozzle; 27, the detection probe; 28, the connecting block; 29, the bolt; 30, the third drive screw; 31, the filter; 32, the second scraper; 33, the fourth groove; 34, the second double-headed screw; 35, the moving block; 36, the rotating rod; 37, the storage groove; 38, the cleaning brush; 39, the first double-headed screw. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 9A device for removing iron oxide scale at the entrance of a rough rolling mill comprises two fixed frames 1, a plurality of conveying rollers 2 are installed between the two fixed frames 1, vertical rods 5 are arranged on the tops of the two fixed frames 1, a first movable plate 6 is installed between the two vertical rods 5, a second movable plate 7 is arranged at the bottom of the first movable plate 6, two third movable plates 8 are symmetrically installed at the bottom of the second movable plate 7, a first cleaning mechanism for removing iron oxide scale from the surface of the slab is installed on the side where the two third movable plates 8 are close to each other, through grooves 3 are opened inside the two fixed frames 1, rectangular plates 9 are installed inside the two through grooves 3, and a second cleaning mechanism for removing iron oxide scale from the bottom of the slab is installed on the outer wall of the side where the two rectangular plates 9 are close to each other.

[0034] As a technical optimization solution of the present invention, the tops of the two fixing frames 1 are provided with first slide grooves 4, the interiors of the two first slide grooves 4 are provided with first sliders 13, and the tops of the two first sliders 13 are connected to the adjacent vertical rods 5. The interiors of the two first slide grooves 4 are provided with first linear motors, which can drive the two first sliders 13 to move back and forth inside the corresponding first slide grooves 4, and drive the two vertical rods 5 to move back and forth together.

[0035] As a technical optimization solution of the present invention, the outer wall of the side where the two vertical rods 5 are close to each other is installed with a first groove 14, and the first driving screw rod 23 and the first sliding rod 15 are installed inside the two first grooves 14 respectively, and the two ends of the first movable plate 6 are respectively matched with the outer walls of the first driving screw rod 23 and the first sliding rod 15. A first driving device is preset inside one of the vertical rods 5, and the output end of the first driving device is connected to the bottom end of the first driving screw rod 23, so that the first driving screw rod 23 can be driven to rotate inside one of the first grooves 14, and the first movable plate 6 can be driven to move up and down between the two vertical rods 5.

[0036] As a technical optimization solution of the present invention, a second groove 17 is provided at the bottom end of the first movable plate 6, a second driving screw 18 is installed inside the second groove 17, a sliding block 19 is installed on the outer wall of the second driving screw 18, a driving motor 20 is installed at the bottom end of the sliding block 19, and the output end of the driving motor 20 is connected and fixed to the top center position of the second movable plate 7. A second driving device is preset on the outer wall of one side of the first movable plate 6, and the output end of the second driving device is connected to one end of the second driving screw 18, so that the second driving screw 18 can be driven to rotate inside the second groove 17, and the sliding block 19, the driving motor 20 and the second movable plate 7 can be driven to move back and forth.

[0037] As a technical optimization solution of the present invention, a third groove 22 is provided at the bottom of the second movable plate 7, a first double-headed screw 39 is rotatably installed inside the third groove 22, and the top ends of the two third movable plates 8 are matched with the outer wall of the first double-headed screw 39. A third driving device is preset on the outer wall of one side of the second movable plate 7, and the output end of the third driving device is connected to one end of the first double-headed screw 39, so that the first double-headed screw 39 can be driven to rotate inside the third groove 22, and the two third movable plates 8 can be driven to move towards or away from each other.

[0038] As a technical optimization solution of the present invention, the first cleaning mechanism includes two mounting plates 16, and the outer walls of the two third movable plates 8 close to each other are provided with second slide grooves 24, and the second sliders 25 are installed inside the two second slide grooves 24, and the ends of the two second sliders 25 away from the second slide grooves 24 are rotatably connected to the mounting plates 16 close to them. Second linear motors are preset inside the two second slide grooves 24, and the two second linear motors can drive the two second sliders 25 to move up and down inside the corresponding second slide grooves 24; and first servo motors are preset inside the two second sliders 25, and the output end of the first servo motor is connected to the rotating part of the mounting plate 16, so as to drive the mounting plate 16 to rotate and adjust.

[0039] As a technical optimization solution of the present invention, multiple high-pressure nozzles 26 are installed inside the two mounting plates 16, and the first scraper 21 is rotatably installed at the bottom of the two mounting plates 16. Two connecting blocks 28 are provided on the outer walls of the two mounting plates 16 on the side away from each other, and the detection probe 27 is threadedly installed between the two connecting blocks 28 and the mounting plates 16 through the bolts 29 provided. Multiple high-pressure nozzles 26 can be connected through the output end of the high-pressure water outlet device preset externally, so that multiple high-pressure nozzles 26 can spray high-pressure water outward; and high-temperature motors are preset on the outer walls of one side of the two mounting plates 16, and the output end of the high-temperature motor is connected to the rotating part of the first scraper 21, so that the first scraper 21 can be driven to rotate and adjust at the bottom end of the mounting plate 16.

[0040] As a technical optimization solution of the present invention, the second cleaning mechanism includes a third drive screw 30 and a third slide bar 12 installed on the outer wall of the two fixed frames 1 away from each other, and a connecting rod 10 is installed on the outer wall of the two rectangular plates 9 away from each other, and the two connecting rods 10 are respectively matched with the outer walls of the third drive screw 30 and the third slide bar 12. A second servo motor is preset on the outer wall of one side of one of the fixed frames 1, and the output end of the second servo motor is connected to one end of the third drive screw 30, so that the third drive screw 30 can be driven to rotate, and one of the connecting rods 10 can be driven to move back and forth on the outer wall of one side of one of the fixed frames 1.

[0041] As a technical optimization solution of the present invention, the outer wall of the adjacent side of the two rectangular plates 9 is provided with a fourth groove 33, the interior of the two fourth grooves 33 is rotatably installed with a second double-headed screw 34, the outer wall of the two second double-headed screws 34 is symmetrically installed with two moving blocks 35, the outer wall of the adjacent side of the two fixed plates is provided with a second scraper 32, the ends of the two moving blocks 35 away from the second double-headed screw 34 are rotatably installed with a rotating rod 36, and the ends of the two rotating rods 36 away from the moving blocks 35 are rotatably connected to the second scraper 32 adjacent to them. A third servo motor is preset on the outer wall of one side of the two rectangular plates 9, and the output end of the third servo motor is connected to one end of the second double-headed screw 34, so that the second double-headed screw 34 can be driven to rotate inside the fourth groove 33, and the two second moving blocks 35 can be driven to move in the direction of approaching or moving away from each other.

[0042] As a technical optimization solution of the present invention, the bottom of the two second scrapers 32 is provided with a receiving groove 37, and the inside of the two receiving grooves 37 is provided with a cleaning brush 38, and the bottom ends of the two connecting rods 10 are connected to a collecting box 11, and the inside of the collecting box 11 is provided with a filter 31. A driving mechanism is preset inside the two second scrapers 32 to drive the cleaning brush 38 to move inside the receiving groove 37, and the driving mechanism can be an electric push rod or a lead screw, so that the cleaning brush 38 can extend from the inside of the receiving groove 37 when in use; because the two connecting rods 10 are connected to the collecting box 11, one of the connecting rods 10 can synchronously drive the collecting box 11 and the other connecting rod 10 to move back and forth together during the movement; the provided collecting box 11 can collect the cleaned iron oxide scale to prevent it from falling down at will.

[0043] In the present invention, when the user uses the device, since the rough rolling mill is at the right end of the two fixed frames 1, the slab to be processed needs to be conveyed from the left end to the right end through multiple conveying rollers 2 until the slab enters the rough rolling mill for rolling processing, and then reversed through multiple conveying rollers 2 to drive the rolled slab to be conveyed out from the inside of the rough rolling mill.

[0044] After the slab falls on the top of the multiple conveying rollers 2 at the left end, there will be iron oxide scale produced by oxidation on its surface. At this time, the third driving screw 30 can be controlled to drive the multiple components of the second cleaning mechanism to move to the center position of the two fixed frames 1. After the slab enters between the two fixed frames 1, it is transported toward the right end with the help of multiple conveying rollers 2 until the slab moves to the position between the two second scrapers 32. Then, the two second sliding blocks 25 above are controlled to move downward to the bottom together inside the corresponding second slide groove 24, and the first driving screw 23 is controlled to drive the first movable plate 6 and the two third movable plates 8 below it and other components to move downward together until the two mounting plates 16 are respectively located at the two ends of the slab. At this time, the two first scrapers 21 can be used as clamps, and the two third movable plates 8 are used to move toward the close position. The two second scrapers 21 are moved in the same direction, and the two first scrapers 21 are driven to clamp and fix the two ends of the slab. With the help of the upward movement of the two second sliders 25 and the reversal of the first driving screw 23, the two first scrapers 21 and the clamped slab are driven to move upward to a position higher than the two second scrapers 32. Then the two second double-headed screws 34 are controlled to rotate, and the two corresponding moving blocks 35 are driven to rotate in the direction of approaching each other, and the two rotating rods 36 are driven to rotate in the direction of approaching each other, and the two second scrapers 32 are pushed to move in the direction of approaching each other, so that the distance between the two second scrapers 32 is smaller than the length of the slab to be processed. Finally, the slab above the two second scrapers 32 can be controlled to move downward until the slab falls on the top of the two second scrapers 32 and is placed, waiting for the iron oxide scale on its surface to be cleaned and removed.

[0045] By controlling the two first scrapers 21 to rotate downward together to a horizontal state, and controlling the two second sliders 25 to drive the two mounting plates 16 to move downward together to a position flush with the top of the slab, the multiple high-pressure nozzles 26 inside the two mounting plates 16 are exposed, and the external preset high-pressure water outlet equipment is controlled to start, so that the multiple high-pressure nozzles 26 can spray high-pressure water on the top of the slab to flush and clean the oxidized iron scale on the top, and control the two third movable plates 8 to move in a direction close to each other. On the one hand, it can increase the spraying range of the multiple high-pressure nozzles 26, and can comprehensively clean the oxidized iron scale on the top of the slab. On the other hand, it can drive the two first scrapers 21 to scrape off the oxidized iron scale that has not been flushed off the top of the slab, thereby further improving the cleaning effect of the oxidized iron scale on the top of the slab.

[0046] Then, the two third movable plates 8 can be controlled to move in opposite directions to the outer walls of the slab on both sides, and the oxidized iron scale on the outer walls of the slab on both sides can be cleaned and removed with the help of multiple high-pressure nozzles 26 and the first scraper 21; then, the driving motor 20 can be controlled to start, driving the second movable plate 7 and other components to rotate 90 degrees, and driving the two third movable plates 8 to rotate to the other two sides of the slab, so that the multiple high-pressure nozzles 26 and the two first scrapers 21 can clean and remove the oxidized iron scale on the outer walls of the other two sides of the slab.

[0047] At this time, the slab is placed on the top of the two second scrapers 32, so that there is a certain gap between the slab and the multiple conveying rollers 2. After the two mounting plates 16 are controlled to move downward to a position close to the gap between the slab and the multiple conveying rollers 2, the high-pressure water sprayed by the multiple high-pressure nozzles 26 can flush the bottom of the slab, which is convenient for flushing and removing the oxidized iron scale at the bottom of the slab, avoiding the problem that the oxidized iron scale at the bottom of the slab cannot be cleaned and removed in the prior art; then the two first scrapers 21 can be controlled to rotate and reset, and used as clamps again, and the two third movable plates 8 are used to move in a direction close to each other, driving the two first scrapers 21 to clamp and fix the two ends of the slab. At this time, the two second double-headed screws 34 can be controlled to rotate forward and backward continuously, driving the two second scrapers 32 to scrape and clean the oxidized iron scale that has not been washed off the bottom of the slab, and with the help of the rotation of the second driving screw 18 inside the first movable plate 6, the multiple components below are driven to move back and forth together, and the clamped and fixed slab is driven to move back and forth on the top of the two second scrapers 32, so as to facilitate the auxiliary cleaning and removal of the positions that the two second scrapers 32 cannot clean, and further improve the effect of cleaning and removing the oxidized iron scale on the bottom of the slab, so as to achieve the effect of comprehensively cleaning and removing the oxidized iron scale on the surface of the slab, which is convenient for the subsequent rough rolling mill to roll the slab.

[0048] Furthermore, if it is necessary to clean and remove the oxidized iron scale on the surface of the circular slab, the two mounting plates 16 can be controlled to rotate 90 degrees to a vertical state, and then the two first scrapers 21 can be controlled to rotate and extend, and according to the diameter of the circular slab, the spacing between the two third movable plates 8 is controlled to match it, and after the circular slab moves to the position between the two third movable plates 8, the first driving screw 23 is controlled to drive the two third movable plates 8 to move close to the circular outer wall of the circular slab, so that the two first scrapers 21 are in contact with the circular outer wall of the circular slab. At this time, multiple high-pressure The nozzle 26 is also exposed. As multiple high-pressure nozzles 26 spray high-pressure water on the surface of the circular slab, and control the drive motor 20 to drive the second movable plate 7 to rotate, the two first scrapers 21 can rotate and scrape the oxidized iron scale on the circular outer wall of the circular slab, and drive multiple high-pressure nozzles 26 to spray high-pressure water on the surface of the circular slab comprehensively, so that the oxidized iron scale on the outer wall of the circular slab can also be cleaned. The above-mentioned cleaning steps for ordinary rectangular slabs can be repeated for the upper and lower outer walls of the circular slab, thereby further improving the applicability of the first cleaning mechanism.

[0049] After the first cleaning mechanism and the second cleaning mechanism cooperate to remove the iron oxide scale on the surface of the slab, the two second scrapers 32 are controlled to move in directions away from each other and reset, thereby driving the slab to fall on the top of the multiple conveying rollers 2 again, and then the two second scrapers 32 are controlled to move in directions close to each other again to push the two ends of the slab, so that the slab can be transported in the center position of the multiple conveying rollers 2, which is convenient for the subsequent rough rolling mill to accurately roll the slab.

[0050] In the above-mentioned process of cleaning the iron oxide scale on the surface of the slab, the collection box 11 located under the multiple conveying rollers 2 can collect the iron oxide scale and can filter and remove excess water with the help of the filter net 31, so as to realize the separate centralized collection of the cleaned iron oxide scale, which is convenient for the subsequent centralized treatment of the iron oxide scale.

[0051] After the iron oxide scale on the surface of the slab is cleaned and removed, it is sent to the interior of the rough rolling mill for rolling treatment. At this time, the two first scrapers 21 can be controlled to rotate downward, and the high-pressure water sprayed by multiple high-pressure nozzles 26 can be used to clean and remove the iron oxide scale attached to the outer wall of one side of the two first scrapers 21, and the two first scrapers 21 can be controlled to move downward so that the outer wall of the other side of the two first scrapers 21 abuts against the top of the two second scrapers 32 below. With the back and forth movement of the two second scrapers 32, the iron oxide scale attached to the outer wall of the other side of the two first scrapers 21 is cleaned, which facilitates the subsequent use of the two first scrapers 21.

[0052] After the rough rolling mill has rolled the slab, it is conveyed to the top of multiple conveying rollers 2 again, and with the help of the reversal of multiple conveying rollers 2, the rolled slab is driven to move to the bottom of the first cleaning mechanism. At this time, the two third movable plates 8 can be controlled to move in opposite directions, so that the distance between the two third movable plates 8 is larger than the width of the rolled slab, and the two third movable plates 8 are controlled to move downward together. Since the outer walls of one side of the two third movable plates 8 are provided with length scales, after the bottom ends of the two third movable plates 8 are flush with the bottom of the rolled slab, the thickness of the rolled slab can be automatically measured without manual measurement with the help of measuring tools, thereby improving the efficiency of slab thickness measurement.

[0053] At the same time, after the rough rolling mill has rolled the slab once, the slab returns to the top of the multiple conveying rollers 2 again. At this time, the two third movable plates 8 can be used to drive the two first scrapers 21 to clamp the two ends of the slab, and then the drive motor 20 can be used to drive the second movable plate 7 to rotate, and the position of the slab itself can be driven to rotate and adjust, which is convenient for rotating and adjusting the position of the slab being rolled, thereby improving the efficiency of the slab rolling process and further improving the applicability of the first cleaning mechanism.

[0054] After the rough rolling mill is used, there will inevitably be a small amount of impurities on the surfaces of the multiple conveyor rollers 2. At this time, the cleaning brushes 38 at the bottom of the two second scrapers 32 can be controlled to slide downward and extend out to contact the outer walls of the multiple conveyor rollers 2. As the multiple conveyor rollers 2 are controlled to continue to rotate, and the two second double-headed screws 34 are controlled to continuously rotate forward and reverse, the two cleaning brushes 38 are driven to automatically clean and remove the impurities attached to the outer walls of the multiple conveyor rollers 2; and with the help of the rotation of the third driving screw 30, the second scrapers 32 of the two second cleaning mechanisms are driven to move on the surfaces of the multiple conveyor rollers 2 together, so that the two cleaning brushes 38 can be driven to clean and remove all impurities attached to the outer walls of the conveyor rollers 2, without the need for subsequent manual cleaning, thereby improving the maintenance efficiency of the multiple conveyor rollers 2.

[0055] After cleaning the impurities on the outer walls of multiple conveyor rollers 2, the two detection probes 27 of the external mechanical double-probe module needle module device can be installed on the outer walls of the two mounting plates 16 on the side away from each other with the help of corresponding connecting blocks 28 and bolts 29. By controlling the two second sliders 25 and the first driving screw 23 to drive the two mounting plates 16 to move downward together, the two detection probes 27 are driven to abut against the outer walls of two of the conveyor rollers 2, respectively, and the corresponding two conveyor rollers 2 are controlled to rotate. At this time, with the help of the detection probes 27, it is possible to detect whether the conveyor roller 2 has a large amplitude of beating during the rotation process, so as to ensure that the conveyor roller 2 is in a normal state when in use. If it is detected that the conveyor roller 2 has a large amplitude of beating, the conveyor roller 2 is in a normal state when in use. If the conveying roller 2 is in an abnormal state during the rotation process, it may cause damage to the surface of the slab during the subsequent conveying of the slab. The conveying roller 2 in the abnormal state needs to be replaced immediately to ensure the subsequent normal conveying of the slab; and the two mounting plates 16 can be driven to move longitudinally with the help of the second driving screw 18, so as to drive the two detection probes 27 to detect different positions of one conveying roller 2; the first slider 13 can also be moved inside the first slide groove 4 to drive the detection probe 27 to automatically detect multiple conveying rollers 2 in turn, so that the beating detection of multiple conveying rollers 2 is more convenient and quick, with a high degree of automation, and there is no need for manual hand-held detection tools to spend a long time to detect multiple conveying rollers 2 in turn.

[0056] Moreover, when the above-mentioned multiple conveying rollers 2 convey the slab to the interior of the roughing mill for rolling processing, if one of the conveying rollers 2 or the driving mechanism of the entire conveying roller 2 fails, resulting in an impact on the conveying efficiency of the slab, after the first cleaning mechanism and the second cleaning mechanism complete the cleaning of the iron oxide scale on the surface of the slab, the two third moving plates 8 can be used in conjunction with the two first scrapers 21 to clamp and fix the two ends of the slab, and the two second scrapers 32 can support and fix the bottom of the slab, and the two first sliding blocks 13 are used to move toward the right end inside the first slide chute 4, driving the first cleaning mechanism to move toward the right end, and the third driving screw 30 is used to drive the second cleaning mechanism to move toward the right end, and the slab can be driven to continue to be conveyed toward the right end, and sent to the interior of the roughing mill for rolling, so as to avoid affecting the rolling processing of the slab. After the rolling of this slab is completed, the entire conveying device can be shut down for maintenance.

[0057] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A roughing mill inlet scale removal device, comprising two fixed frames (1), characterized in that: A plurality of conveying rollers (2) are installed between the two fixed frames (1), vertical rods (5) are arranged at the tops of the two fixed frames (1), a first movable plate (6) is installed between the two vertical rods (5), a second movable plate (7) is arranged at the bottom of the first movable plate (6), two third movable plates (8) are symmetrically installed at the bottom of the second movable plate (7), a first cleaning mechanism for removing oxidized iron scale from the surface of the slab is installed on the side close to each other of the two third movable plates (8), a through groove (3) is opened inside the two fixed frames (1), a rectangular plate (9) is installed inside the two through grooves (3), and a second cleaning mechanism for removing oxidized iron scale from the bottom of the slab is installed on the outer wall of the side close to each other of the two rectangular plates (9).

2. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 1, characterized in that: The tops of the two fixing frames (1) are each provided with a first sliding groove (4), the interiors of the two first sliding grooves (4) are each provided with a first sliding block (13), and the top ends of the two first sliding blocks (13) are each connected to a vertical rod (5) adjacent thereto.

3. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 1, characterized in that: The outer walls of the two vertical rods (5) adjacent to each other are both provided with a first groove (14), the interiors of the two first grooves (14) are respectively provided with a first driving screw rod (23) and a first sliding rod (15), and the two ends of the first movable plate (6) are respectively matched with the outer walls of the first driving screw rod (23) and the first sliding rod (15).

4. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 1, characterized in that: A second groove (17) is provided at the bottom end of the first movable plate (6), a second driving screw (18) is installed inside the second groove (17), a sliding block (19) is installed on the outer wall of the second driving screw (18), a driving motor (20) is installed at the bottom end of the sliding block (19), and an output end of the driving motor (20) is connected and fixed to the center position of the top of the second movable plate (7).

5. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 1, characterized in that: A third groove (22) is provided at the bottom of the second movable plate (7), a first double-headed screw (39) is rotatably mounted inside the third groove (22), and the top ends of the two third movable plates (8) are matched with the outer wall of the first double-headed screw (39).

6. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 1, characterized in that: The first cleaning mechanism comprises two mounting plates (16), the outer walls of the two third movable plates (8) being close to each other are each provided with a second slide groove (24), the interiors of the two second slide grooves (24) are each provided with a second slider (25), and the ends of the two second sliders (25) away from the second slide grooves (24) are both rotatably connected to the mounting plates (16) close to them.

7. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 6, characterized in that: A plurality of high-pressure nozzles (26) are installed inside the two mounting plates (16), a first scraper (21) is rotatably installed at the bottom of the two mounting plates (16), two connecting blocks (28) are provided on the outer walls of the two mounting plates (16) away from each other, and a detection probe (27) is threadedly installed between the two connecting blocks (28) and the mounting plates (16) via bolts (29).

8. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 1, characterized in that: The second cleaning mechanism comprises a third driving screw rod (30) and a third sliding rod (12) installed on the outer walls of the two fixed frames (1) away from each other, and a connecting rod (10) is installed on the outer walls of the two rectangular plates (9) away from each other, and the two connecting rods (10) are respectively matched with the outer walls of the third driving screw rod (30) and the third sliding rod (12).

9. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 8, characterized in that: The outer walls of the two rectangular plates (9) on the sides close to each other are each provided with a fourth groove (33), a second double-headed screw rod (34) is rotatably mounted inside the two fourth grooves (33), two moving blocks (35) are symmetrically mounted on the outer walls of the two second double-headed screw rods (34), a second scraper (32) is disposed on the outer walls of the two fixed plates on the sides close to each other, a rotating rod (36) is rotatably mounted on one end of the two moving blocks (35) away from the second double-headed screw rod (34), and the two rotating rods (36) are rotatably connected to the second scraper (32) close to the moving blocks (35) at one end thereof.

10. The device for removing iron oxide scale at the entrance of a roughing mill according to claim 9, characterized in that: The bottoms of the two second scrapers (32) are each provided with a receiving groove (37), and a cleaning brush (38) is installed inside the two receiving grooves (37). The bottom ends of the two connecting rods (10) are commonly connected to a collecting box (11), and a filter screen (31) is installed inside the collecting box (11).

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