Strip steel descaling production line

Abstract

The utility model relates to the technical field of steel production, and discloses a strip steel descaling production line which comprises a descaling device, a conveying mechanism is fixedly arranged in the descaling device, a high-pressure water pump is fixedly arranged at the position, close to the upper end, in the descaling device, and a descaling water spraying plate is fixedly arranged at the output end of the high-pressure water pump. A plurality of first descaling nozzles are fixedly arranged at the lower end of the descaling water spraying plate, sliding mechanisms are fixedly arranged at the two ends of the descaling water spraying plate, a rotating motor is fixedly arranged at the position, close to the rear end, in the descaling device, a two-way lead screw is fixedly arranged at the output end of the rotating motor, and two telescopic plates are in threaded connection with the exterior of the two-way lead screw; a plurality of second descaling nozzles are fixedly arranged at the upper ends of the two telescopic plates, and two air cylinders are fixedly arranged in the descaling device. According to the steel descaling device, the height and the position of the descaling water spraying plate are automatically adjusted according to different steels, so that the descaling operation is accurately carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of steel production, in particular to a strip steel descaling production line. Background Art

[0002] Strip steel descaling production line is an important link in the field of steelmaking, rolling and steel strip processing. During the steelmaking and rolling process, a layer of iron oxide scale (also called scale) may be produced on the surface of the steel, which not only affects the quality and appearance of the steel, but may also have an adverse effect on subsequent processing and use. Therefore, it is necessary to use a descaling production line to remove these iron oxide scales to ensure the quality and performance of the steel.

[0003] Most of the descaling devices in the existing steel descaling production lines use nozzles fixed at the upper end for water pressure descaling operations. The nozzles usually do not have flexible adjustment functions. When facing steels of different specifications, especially when dealing with the edges of steels, it may be difficult to achieve sufficient and efficient descaling operations. In addition, wastewater containing metal debris will inevitably be generated during the cleaning process. If the wastewater is directly discharged without proper treatment, it will cause pollution to the ecological environment.

[0004] Therefore, the utility model provides a strip steel descaling production line to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a strip steel descaling production line is proposed. By adopting a high-pressure water jet combined with a brush roller scraping method, all-round and multi-angle descaling of the steel surface is achieved, thereby ensuring the surface quality of the steel. The internal filter screen and electromagnet effectively separate the solid waste in the wastewater, thereby reducing environmental pollution.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A strip steel descaling production line, comprising a descaling device, wherein a conveying mechanism is fixedly arranged inside the descaling device, a high-pressure water pump is fixedly arranged inside the descaling device near the upper end, a descaling water spray plate is fixedly arranged at the output end of the high-pressure water pump, a plurality of first descaling nozzles are fixedly arranged at the lower end of the descaling water spray plate, sliding mechanisms are fixedly arranged at both ends of the descaling water spray plate, a rotating motor is fixedly arranged at the rear end of the descaling device, a bidirectional screw is fixedly arranged at the output end of the rotating motor, two telescopic plates are externally threadedly connected to the bidirectional screw, a plurality of second descaling nozzles are fixedly arranged at the upper ends of the two telescopic plates, and two cylinders are fixedly arranged inside the descaling device;

[0008] A water storage tank is fixedly arranged on one side inside the descaling device, a filter screen is slidably arranged inside the water storage tank, a plurality of electromagnets are fixedly arranged inside the filter screen, and a scale brushing mechanism is fixedly arranged on the other side inside the descaling device, and the scale brushing mechanism includes a plurality of shock absorbers, a movable plate, two sliders, a driving motor, a linkage mechanism and a plurality of brush rollers;

[0009] Through the above technical scheme, during operation, the hot-rolled steel strip to be processed enters the descaling device through the conveying mechanism, the high-pressure water pump starts to convey the water flow downward through the descaling water spray plate, and the first descaling nozzle is used to carry out high-intensity water pressure impact on the steel to achieve preliminary descaling. At the same time, the sliding mechanisms at both ends of the descaling water spray plate ensure the stability and accuracy of the descaling process, and the rotating motor drives the bidirectional screw rod so that the two telescopic plates threadedly connected thereto can move vertically according to needs. The multiple second descaling nozzles arranged on the upper end of the telescopic plate can perform deep descaling operations on the steel from different angles on the side, ensuring all-round and After the water pressure descaling is completed, the steel continues to move forward to the scale brushing mechanism, and the movable plate is driven down by two sliders. The driving motor makes multiple brush rollers rotate at high speed through the linkage mechanism. The brush rollers fit tightly to the surface of the steel and use physical scraping to completely remove the residual iron oxide. The peeled oxide debris and sewage flow through the filter screen inside the water tank. The larger waste residue will be adsorbed and separated by the electromagnet in the filter screen. The filtered wastewater is stored in the water tank and then re-extracted by the water pump and sent back to the high-pressure water pump, realizing the efficient reuse of water resources and reducing production costs and environmental pollution.

[0010] Further, the upper ends of the plurality of shock absorbers are fixedly arranged inside the descaling device near the upper end, the upper end of the movable plate is fixedly arranged between the lower ends of the plurality of shock absorbers, the outer portion of the driving motor is fixedly arranged inside the movable plate near the rear end, the two sliders are fixedly arranged at opposite ends at both ends of the movable plate, the rear end of the linkage mechanism is fixedly arranged at the output end of the driving motor, the rear ends of the plurality of brush rollers are fixedly arranged at the front end of the linkage mechanism, and the opposite ends of the two sliders are slidably arranged inside the descaling device;

[0011] Through the above technical scheme, the upper end of the shock absorber is installed at the upper end of the interior of the descaling device, and the lower end is connected to the movable plate to provide necessary buffering and shock absorption effects to ensure stable operation of the equipment during high-speed operation. The movable plate is suspended in the descaling device through multiple shock absorbers, and a drive motor is built into the rear part. Two sliders are respectively fixed at both ends of the movable plate and can slide up and down inside the descaling device to achieve precise contact of the brush roller with the surface of the strip and adapt to the needs of steel of different thicknesses. The output end of the drive motor is connected to the rear end of the linkage mechanism. When the drive motor is started, the power is transmitted to the front end. The rear ends of the multiple brush rollers are fixedly connected to the front end of the linkage mechanism and rotate synchronously under the drive of the drive motor, thereby performing a secondary descaling operation.

[0012] Furthermore, a steel tapping device is fixedly arranged on one side of the outside of the conveying mechanism, and the steel tapping device includes a heating furnace and a steel tapping machine, and the front end of the heating furnace is fixedly arranged at the rear end of the steel tapping machine;

[0013] Through the above technical solution, when the steel is fully heated in the heating furnace, the steel tapping machine starts to smoothly move the high-temperature steel out of the heating furnace and send it to the upper end of the conveying mechanism.

[0014] Furthermore, a cooling mechanism is fixedly arranged on the middle of the other side of the outside of the conveying mechanism, and a rolling mill is fixedly arranged on the other side of the outside of the conveying mechanism;

[0015] Through the above technical solution, the cooling mechanism uses circulating cooling water to quickly cool the steel, and the rolling mill applies pressure to the steel to achieve precise control of its thickness and width.

[0016] Furthermore, the conveying mechanism comprises a roller conveyor and a plurality of conveying rollers, and the outer portions of the plurality of conveying rollers are rotatably arranged inside the roller conveyor;

[0017] Through the above technical solution, after the strip steel comes out of the heating furnace, it contacts the conveying roller through the roller table and is pushed forward by the rolling force thereof.

[0018] Furthermore, a water pump is fixedly arranged on the other side inside the descaling device, and the output end of the water pump is fixedly arranged on the input end of the high-pressure water pump;

[0019] Through the above technical solution, the water pump extracts the filtered wastewater from the water storage tank, and then transports this part of the wastewater to the input end of the high-pressure water pump for reuse.

[0020] Furthermore, an infrared sensor is fixedly arranged on one side inside the descaling device, and the lower ends of the two cylinders are fixedly arranged on the upper end of the descaling water spray plate;

[0021] Through the above technical solution, the infrared sensor can quickly detect the presence of steel, and the cylinder can make the descaling water spray plate run smoothly along the sliding mechanism.

[0022] The utility model has the following beneficial effects:

[0023] 1. The utility model proposes a strip steel descaling production line. During descaling, the cylinder drives the descaling water spray plate to slide down, so that the sliding mechanism operates to the set position, and the first descaling nozzle at the bottom starts the high-pressure spray function. At the same time, the rotating motor drives the bidirectional screw rod to operate, and the telescopic plate is smoothly expanded in the vertical direction according to the demand, so that the second descaling nozzle can be accurately in place, and the high-pressure water pump starts to work, and delivers high-pressure water to the first descaling nozzle at the top and the second descaling nozzles on both sides that have been adjusted into place. The two groups of nozzles act synchronously to apply high-intensity water pressure to the passing steel to perform deep and comprehensive descaling operations.

[0024] 2. The utility model proposes a strip steel descaling production line. After the water pressure descaling is completed, the steel moves to the scale brushing mechanism, which makes the movable plate drop to adapt to the height of the steel, drives the motor to run, and drives the brush roller to rotate at a high speed. Under the action of physical contact and friction, the iron oxide scale remaining on the surface of the steel is physically cleaned for the second time to ensure the cleanliness of the steel surface. An electromagnet is installed inside the filter screen, which can effectively absorb metal debris in the wastewater and further purify the wastewater, thereby realizing recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an axonometric schematic diagram of the utility model;

[0026] Figure 2 It is a front cross-sectional schematic diagram of the descaling device of the utility model;

[0027] Figure 3 It is a side cross-sectional schematic diagram of the descaling device of the utility model;

[0028] Figure 4 It is a side sectional schematic diagram of the descaling mechanism of the utility model.

[0029] Legend:

[0030] 1. Conveying mechanism; 101. Roller table; 102. Conveying roller; 2. Steel-discharging device; 201. Heating furnace; 202. Steel-discharging machine; 3. Descaling device; 4. Cooling mechanism; 5. Rolling mill; 6. First descaling nozzle; 7. Second descaling nozzle; 8. Telescopic plate; 9. Infrared sensor; 10. Bidirectional screw rod; 11. Filter screen; 12. Cylinder; 13. Descaling spray plate; 14. High-pressure water pump; 15. Water pump; 16. Scale-brushing mechanism; 1601. Shock absorber; 1602. Movable plate; 1603. Sliding block; 1604. Driving motor; 1605. Linkage mechanism; 1606. Brush roller; 17. Electromagnet; 18. Water storage tank; 19. Sliding mechanism; 20. Rotating motor. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4 , an embodiment provided by the utility model:

[0033] A strip steel descaling production line comprises a descaling device 3, a conveying mechanism 1 is fixedly arranged inside the descaling device 3, a high-pressure water pump 14 is fixedly arranged at the upper end inside the descaling device 3, a descaling water spray plate 13 is fixedly arranged at the output end of the high-pressure water pump 14, a plurality of first descaling nozzles 6 are fixedly arranged at the lower end of the descaling water spray plate 13, sliding mechanisms 19 are fixedly arranged at both ends of the descaling water spray plate 13, a rotating motor 20 is fixedly arranged at the rear end inside the descaling device 3, a bidirectional screw rod 10 is fixedly arranged at the output end of the rotating motor 20, and the external threaded connection of the bidirectional screw rod 10 Two telescopic plates 8 are connected, and a plurality of second descaling nozzles 7 are fixedly arranged on the upper ends of the two telescopic plates 8. Two cylinders 12 are fixedly arranged inside the descaling device 3. A water storage tank 18 is fixedly arranged on one side of the descaling device 3. A filter screen 11 is slidably arranged inside the water storage tank 18. A plurality of electromagnets 17 are fixedly arranged inside the filter screen 11. A water pump 15 is fixedly arranged on the other side of the descaling device 3. The output end of the water pump 15 is fixedly arranged on the input end of the high-pressure water pump 14. The lower ends of the two cylinders 12 are fixedly arranged on the upper end of the descaling water spray plate 13.

[0034] First, the heat-treated steel is sent to the descaling device 3 through the conveying mechanism 1. At the upper end of the descaling device 3, the high-pressure water pump 14 provides high-pressure water and performs preliminary water pressure descaling on the steel through multiple first descaling nozzles 6 on the descaling spray plate 13. The sliding mechanism 19 ensures that the descaling spray plate 13 can be flexibly adjusted according to the width of the steel. At the same time, the rotating motor 20 drives the bidirectional screw rod 10, so that the two telescopic plates 8 threaded thereon can move smoothly in the vertical direction. The second descaling nozzle 7 arranged on the telescopic plate 8 can supplement the descaling from the side to ensure To ensure that the oxide scale is completely removed, under the action of the cylinder 12, the descaling water spray plate 13 can move up and down as needed, so as to adapt to the steel of different thicknesses for efficient descaling operations. The wastewater generated during the descaling process flows into the water storage tank 18, wherein the filter screen 11 intercepts larger impurity particles in the wastewater, and the electromagnet 17 installed inside the filter screen 11 adsorbs metal debris. The filtered wastewater can then be recycled and pumped into the high-pressure water pump 14 by the water pump 15 again, forming an effective recycling of water resources and reducing pollution to the environment.

[0035] A scale brushing mechanism 16 is fixedly arranged on the other side inside the descaling device 3, and the scale brushing mechanism 16 includes multiple shock absorbers 1601, a movable plate 1602, two sliders 1603, a driving motor 1604, a linkage mechanism 1605 and multiple brush rollers 1606. The upper ends of the multiple shock absorbers 1601 are fixedly arranged on the upper end inside the descaling device 3, the upper end of the movable plate 1602 is fixedly arranged between the lower ends of the multiple shock absorbers 1601, the driving motor 1604 is externally fixedly arranged on the rear end inside the movable plate 1602, the two sliders 1603 are fixedly arranged at opposite ends of the movable plate 1602, the rear end of the linkage mechanism 1605 is fixedly arranged on the output end of the driving motor 1604, the rear ends of the multiple brush rollers 1606 are fixedly arranged on the front end of the linkage mechanism 1605, and the opposite ends of the two sliders 1603 are slidably arranged inside the descaling device 3;

[0036] After completing the high-pressure water descaling, the steel continues to pass through the scale brushing mechanism 16 on the other side of the descaling device 3. Multiple shock absorbers 1601 are installed at the upper end of the descaling device 3, and the lower end is connected to the movable plate 1602, so that the movable plate 1602 can move smoothly under the support of the shock absorber 1601, effectively absorbing and dispersing the impact force during the operation. The driving motor 1604 is fixed to the rear of the movable plate 1602, and the power is transmitted through the linkage mechanism 1605 during operation. The front end of the linkage mechanism 1605 is connected to the rear end of multiple brush rollers 1606. When the driving motor 1604 is started, the linkage mechanism 1605 drives the brush roller 1606 to rotate and physically brush the surface of the passing steel to further descale. The two sliders 1603 are respectively located at both ends of the movable plate 1602, and the opposite end is slidably set inside the descaling device 3, so as to adapt to steels of different widths and specifications, and ensure that the brush roller 1606 is always close to the surface of the steel for effective scale brushing operations.

[0037] A steel-discharging device 2 is fixedly arranged on one side of the outside of the conveying mechanism 1. The steel-discharging is automated, which reduces the risk of manual operation and improves production safety. The steel-discharging device 2 includes a heating furnace 201 and a steel-discharging machine 202. The front end of the heating furnace 201 is fixedly arranged at the rear end of the steel-discharging machine 202. When the steel is fully heated in the heating furnace 201, the steel-discharging machine 202 moves the high-temperature steel from the inside of the heating furnace 201 and sends it to the upper end of the conveying mechanism 1 through a pre-set trajectory. A cooling mechanism 4 is fixedly arranged on the middle of the other side of the outside of the conveying mechanism 1. The cooling mechanism 4 uses circulating cooling water to quickly cool the steel to prevent moisture residue from causing quality problems in subsequent processes. A rolling mill 5 is fixedly arranged on the other side of the outside of the conveying mechanism 1. The rolling mill 5 By applying pressure to the steel, its thickness and width can be precisely controlled, thereby improving the overall production efficiency and capacity. The conveying mechanism 1 includes a roller 101 and a plurality of conveying rollers 102. The exteriors of the plurality of conveying rollers 102 are all rotatably arranged inside the roller 101. The conveying mechanism 1 can realize the continuous and smooth transmission of steel on the production line, which is beneficial to the efficient progress of the entire production process. When the strip steel comes out of the heating furnace 201, it contacts the conveying roller 102 through the roller 101 and is pushed forward by its rolling force. An infrared sensor 9 is fixedly arranged on one side inside the descaling device 3. The infrared sensor 9 realizes automatic detection, thereby improving the automation degree of the production line, reducing manual intervention, and making the entire descaling process more accurate and efficient.

[0038] Working principle: When the production line is running, the heat-treated steel is transferred from the inside of the heating furnace 201 to the upper end of the conveying mechanism 1. When the infrared sensor 9 detects the presence of the steel, the cylinder 12 pushes the descaling water spray plate 13 to slide down, and the sliding mechanisms 19 on both sides slide synchronously to the preset working position. At this time, the first descaling nozzle 6 starts to spray high pressure from the bottom of the descaling water spray plate 13. At the same time, the two-way screw rod 10 is driven by the rotating motor 20 to prompt the telescopic plate 8 to move smoothly, so that the second descaling nozzle 7 can be extended to the position in the vertical direction as needed. The high-pressure water pump 14 is immediately turned on, and the first descaling nozzle 6 on the top and the second descaling nozzles 7 on both sides simultaneously perform high-intensity water pressure descaling operations on the steel. After completing the initial water pressure descaling, the steel The material continues to move forward and enters the scale-brushing mechanism 16, and the sliders 1603 at both ends drive the movable plate 1602 to move downward, and the driving motor 1604 makes the linkage mechanism 1605 operate and drives multiple brush rollers 1606 to rotate. The high-speed rotating brush rollers 1606 are closely attached to the surface of the steel material, and the remaining iron oxide is completely removed by physical scraping. The peeled debris and sewage flow through the filter screen 11 in the water storage tank 18, and the larger waste is adsorbed and intercepted by the internal electromagnet 17, while the filtered sewage flows into the water storage tank 18 for storage. Subsequently, the filtered wastewater is re-extracted by the water pump 15 and sent back to the high-pressure water pump 14, so as to realize the reuse of water resources, thereby greatly saving the water resource consumption in the production process.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A strip steel descaling production line, comprising a descaling device (3), characterized in that: A conveying mechanism (1) is fixedly arranged inside the descaling device (3); a high-pressure water pump (14) is fixedly arranged inside the descaling device (3) at the upper end; a descaling water spray plate (13) is fixedly arranged at the output end of the high-pressure water pump (14); a plurality of first descaling nozzles (6) are fixedly arranged at the lower end of the descaling water spray plate (13); sliding mechanisms (19) are fixedly arranged at both ends of the descaling water spray plate (13); a rotating motor (20) is fixedly arranged inside the descaling device (3) at the rear end; a bidirectional screw rod (10) is fixedly arranged at the output end of the rotating motor (20); two telescopic plates (8) are externally threadedly connected to the bidirectional screw rod (10); a plurality of second descaling nozzles (7) are fixedly arranged at the upper ends of the two telescopic plates (8); and two cylinders (12) are fixedly arranged inside the descaling device (3); A water storage tank (18) is fixedly arranged on one side inside the descaling device (3), a filter screen (11) is slidably arranged inside the water storage tank (18), a plurality of electromagnets (17) are fixedly arranged inside the filter screen (11), and a scale brushing mechanism (16) is fixedly arranged on the other side inside the descaling device (3), the scale brushing mechanism (16) comprises a plurality of shock absorbers (1601), a movable plate (1602), two sliders (1603), a driving motor (1604), a linkage mechanism (1605) and a plurality of brush rollers (1606).

2. A strip steel descaling production line according to claim 1, characterized in that: The upper ends of the plurality of shock absorbers (1601) are fixedly arranged inside the descaling device (3) near the upper end, the upper end of the movable plate (1602) is fixedly arranged between the lower ends of the plurality of shock absorbers (1601), the exterior of the drive motor (1604) is fixedly arranged inside the movable plate (1602) near the rear end, the two sliders (1603) are fixedly arranged at opposite ends at both ends of the movable plate (1602), the rear end of the linkage mechanism (1605) is fixedly arranged at the output end of the drive motor (1604), the rear ends of the plurality of brush rollers (1606) are fixedly arranged at the front end of the linkage mechanism (1605), and the opposite ends of the two sliders (1603) are slidably arranged inside the descaling device (3).

3. The strip steel descaling production line according to claim 1, characterized in that: A steel tapping device (2) is fixedly arranged on one side of the outside of the conveying mechanism (1), and the steel tapping device (2) comprises a heating furnace (201) and a steel tapping machine (202), and the front end of the heating furnace (201) is fixedly arranged on the rear end of the steel tapping machine (202).

4. The strip steel descaling production line according to claim 1, characterized in that: A cooling mechanism (4) is fixedly arranged on the outside of the conveying mechanism (1) near the middle of the other side, and a rolling mill (5) is fixedly arranged on the outside of the conveying mechanism (1) near the other side.

5. The strip steel descaling production line according to claim 1, characterized in that: The conveying mechanism (1) comprises a roller conveyor (101) and a plurality of conveying rollers (102), and the exteriors of the plurality of conveying rollers (102) are all rotatably arranged inside the roller conveyor (101).

6. The strip steel descaling production line according to claim 1, characterized in that: A water pump (15) is fixedly arranged inside the descaling device (3) on the other side, and the output end of the water pump (15) is fixedly arranged on the input end of the high-pressure water pump (14).

7. The strip steel descaling production line according to claim 1, characterized in that: An infrared sensor (9) is fixedly arranged on one side inside the descaling device (3), and the lower ends of the two cylinders (12) are fixedly arranged on the upper end of the descaling water spray plate (13).

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