A scale removing device

Abstract

This utility model belongs to the field of steel manufacturing technology and discloses a descaling device, including a frame base, which includes a pressure roller frame and a motor frame; a roller frame is also provided on the pressure roller frame; it also includes a lower roller and an upper roller arranged parallel to the lower roller; the lower roller is fixed to the pressure roller frame by a bearing seat, and its end near the motor frame is connected to the pressure roller motor through a coupling, and the pressure roller motor drives the lower roller to rotate; it also includes a vertical adjustment device for adjusting the vertical movement of the upper roller and a blowing spray device. The lower roller drives the material forward, and the upper roller squeezes and rolls up the oxide scale on the surface of the material. When the material advances to the blowing spray device, high-pressure gas is sprayed out from the blowing spray device, blowing away the oxide scale rolled up on the surface of the material, and removing the oxide scale by the impact force of the gas. The vertical adjustment device allows the upper roller to be adjusted in the vertical direction through the elastic force of the spring on the lower spring sleeve.

Description

Technical Field

[0001] This utility model belongs to the field of steel manufacturing technology and relates to a device for removing oxide scale. Background Technology

[0002] Oxide scale is a corrosion product formed by the oxidation of steel at high temperatures. It consists of ferrous oxide, magnetite, and ferric oxide. From the inside out, the order is: ferrous oxide, magnetite, and ferric oxide. Ferrous oxide has a loose structure and weak protective effect, while magnetite and ferric oxide have a dense structure and better protective properties. Besides causing significant steel loss, oxide scale formation leads to several adverse consequences, including: if oxide scale is pressed into the forging during forging, it can severely damage the workpiece; removing oxide scale requires additional auxiliary processes and equipment; oxide scale has high hardness, increasing deformation energy consumption during forging and accelerating die wear, thus reducing its service life; and oxide scale chemically corrodes refractory bricks, causing premature damage to the furnace bottom.

[0003] Traditional water-based methods for removing oxide scale require large amounts of water, and the high cost of water treatment increases production costs. The process also generates significant amounts of wastewater, necessitating additional water treatment equipment and resulting in resource waste. Furthermore, it is ineffective at removing oxide scale from complex shapes or small crevices, making complete removal difficult. Because water-based oxide scale removal equipment is constantly exposed to water, it is prone to corrosion, increasing maintenance costs. Improper wastewater treatment can pollute the environment, increasing environmental pressure. Based on these reasons, it was decided to develop a new type of oxide scale removal equipment. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a descaling device with high production efficiency, fast cleaning speed and low energy consumption.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a descaling device, including a frame base, the frame base including a pressure roller frame and a motor frame; the pressure roller frame is also provided with a roller frame, the roller frame including a left front support, a left rear support, a right front support, and a right rear support, the top ends of the left front support and the right front support are connected by a frame cover, the top ends of the left rear support and the right rear support are connected by a frame cover; it also includes a lower roller and an upper roller arranged parallel to the lower roller; the lower roller is fixed on the pressure roller frame by a bearing seat, and one end near the motor frame is connected to the pressure roller motor by a coupling, the pressure roller motor drives the lower roller to rotate; one end of the upper roller is connected to the left front support and the right front support by a pressure plate, and the other end is connected to the left rear support and the right rear support by a pressure plate; it also includes a vertical adjustment device for adjusting the vertical movement of the upper roller.

[0006] Furthermore, it also includes a purge spray device, which is installed in the direction of the lower roller's advance.

[0007] Furthermore, the upper roller includes a roller shaft, a roller fixed on the roller shaft, and a bearing housing that cooperates with the roller shaft.

[0008] Furthermore, the pressure plate includes an adjusting plate, a fixed circular plate installed in the middle of the adjusting plate, a rotating pin connected to the roller shaft, and a limiting block used in conjunction with the rotating pin, wherein the limiting block is fixed on the fixed circular plate.

[0009] Furthermore, the vertical adjustment device includes a guide shaft, the upper end of which is provided with an external thread of a certain length, and the lower end of the guide shaft is connected to a limit block.

[0010] A guide sleeve is fitted onto the outer ring of the guide shaft and has external threads; an upper spring sleeve is also welded to the upper end of the guide sleeve.

[0011] The upper compression spring sleeve is installed on one end of the external thread of the guide shaft to compress the spring that is sleeved between the upper compression spring sleeve and the upper spring sleeve. The upper compression spring sleeve is adjusted and limited by the shim and the thread.

[0012] A lower pressure spring sleeve, wherein the lower pressure spring sleeve is fitted onto the lower end of the guide sleeve;

[0013] A fixed base plate is provided, with a limiting hole in the middle that cooperates with the limiting block. A lower spring sleeve is welded on the fixed plate, and a spring is installed between the lower spring sleeve and the lower compression spring sleeve. The fixed base plate is connected to the bearing seat by studs.

[0014] Furthermore, a guide sleeve is fixedly provided in the middle of the frame cover, and a guide loop is inserted into the guide sleeve. Nuts are used at both ends of the guide sleeve to limit the guide loop.

[0015] Furthermore, the frame cover is movably connected to the left front support column and the right front support column; the frame cover is movably connected to the left rear support column and the right rear support column.

[0016] The beneficial effects of this invention are as follows: By setting up an upper roller and a lower roller, the lower roller drives the material forward, while the upper roller squeezes and rolls up the oxide scale on the surface of the material. When the material advances to the blowing spray device, high-pressure gas is sprayed out from the blowing spray device, blowing away the oxide scale rolled up on the surface of the material. The oxide scale is removed by the impact force of the gas. The vertical adjustment device allows the upper roller to be adjusted in the vertical direction through the spring force on the lower spring sleeve; the pressure plate can be adjusted in the direction of material movement. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a side view of the frameless base of this utility model.

[0019] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0020] Figure 4 This is a schematic diagram showing the installation of the rotating pin and the limiting block;

[0021] The markings in the diagram are as follows: 11. Pressure roller frame; 12. Motor frame; 131. Left front support column; 132. Right front support column; 133. Right rear support column; 14. Pressure roller motor; 15. Coupling; 16. Lower roller; 171. Roller shaft; 172. Roller; 173. Bearing seat; 181. Rotating pin; 182. Limiting block; 21. Guide sleeve; 221. Guide shaft; 222. Upper compression spring sleeve; 223. Lower compression spring sleeve; 224. Limiting block; 231. Guide sleeve; 232. Upper spring sleeve; 233. Lower spring sleeve; 234. Fixed base plate; 30. Blowing spray device. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 3The descaling device shown includes a frame base, which includes a pressure roller frame 11 and a motor frame 12. The pressure roller frame 11 is further provided with a roller frame, which includes a left front support 131, a left rear support, a right front support 132, and a right rear support 133. The top ends of the left front support 131 and the right front support 132 are connected by a frame cover, and the top ends of the left rear support and the right rear support 133 are also connected by a frame cover. The frame cover is movably connected to the left front support 131 and the right front support 132, and the frame cover is movably connected to the left rear support and the right rear support 133. It also includes a lower roller 16 and an upper roller arranged parallel to the lower roller 16. The lower roller 16 is fixed to the pressure roller frame 11 by bearing seats 173. One bearing seat 173 is located between the left front support and the right front support 132, and the other bearing seat 173 is located between the left rear front support and the right rear support. The end near the motor frame 12 is connected to the pressure roller motor 14 through a coupling 15. The pressure roller motor 14 drives the lower roller 16 to rotate, thereby driving the material forward. One end of the upper roller is connected to the left front support 131 and the right front support 132 through a pressure plate, and the other end is connected to the left rear support and the right rear support 133 through a pressure plate. The upper roller includes a roller shaft 171, a roller 172 fixed on the roller shaft 171, and a bearing seat 173 that cooperates with the roller shaft 171. It also includes a vertical adjustment device for adjusting the vertical movement of the upper roller. When the upper roller rotates, the presence of oxide scale on the surface will cause the roller 172 to move slightly up and down or back and forth. The vertical adjustment device can adjust the up and down movement of the upper roller, while the back and forth movement is limited by the pressure plate.

[0024] Based on the above, such as Figure 2 As shown, it also includes a purge spray device 30, which is installed in the direction of the advance of the lower roller 16. When the material passes through the upper roller and the lower roller 16, the oxide scale on the contact surface between the upper roller and the lower roller 16 and the material is squeezed and crushed, so that the oxide scale is crushed. When the upper surface moves to the underside of the purge spray device 30, the oxide scale is removed by the impact force of high-pressure gas.

[0025] Based on the above, such as Figure 2 As shown, the pressure plate includes an adjusting plate, a fixed circular plate installed in the middle of the adjusting plate, a rotating pin 181 connected to the roller shaft 171, and a limiting block 182 that cooperates with the rotating pin 181. The limiting block 182 is fixed to the fixed circular plate. The adjusting plate includes a middle fixed plate and connecting plates connected to both sides of the middle fixed plate. Adjusting holes are provided on the connecting plates, and bolts pass through these holes to connect the adjusting plate to the left front support column 131, the left rear support column, the right front support column 132, and the right rear support column 133. Figure 4As shown, the pivot pin has a notch, and the limiting block 182 has a protrusion. The width of the notch is wider than the width of the protrusion. When the roller shaft 171 moves in the front-back direction, it can not only move back and forth but also rotate at a certain small angle, reducing the rigid compression between the roller 172 and the material surface and extending its service life.

[0026] Based on the above, such as Figures 1 to 3 As shown, the vertical adjustment device includes a guide shaft 221, the upper end of which is provided with an external thread of a certain length, and a limit block 224 connected to the lower end of the guide shaft 221; a guide sleeve 231, which is fitted onto the outer ring of the guide shaft 221 and is also provided with an external thread; an upper spring sleeve 232 is welded to the upper end of the guide sleeve 231; and an upper compression spring sleeve 222, which is installed on one end of the external thread of the guide shaft 221 and is fitted onto the upper compression spring sleeve 222. The spring between the upper spring sleeve 232 and the lower spring sleeve 222 is compressed and adjusted and limited by the shims and threads; the lower spring sleeve 223 is fitted on the lower end of the guide sleeve 231; the fixed base plate 234 has a limiting hole in the middle that cooperates with the limiting block 224, and the lower spring sleeve 233 is welded on the fixed plate, and a spring is installed between the lower spring sleeve 233 and the lower spring sleeve 223; the fixed base plate 234 is connected to the bearing seat 173 by studs. Double nuts limit the upper spring sleeve 222 at the position of the guide shaft 221, preventing loosening. The spring then compresses the upper spring sleeve 232, causing the lower spring sleeve 233 to move away from the upper spring sleeve 222. The lower outer ring of the guide sleeve 231 is fitted with the lower spring sleeve 223. When the guide sleeve 231 moves downward, the spring compresses the lower spring sleeve 233, causing it to move downward and driving the lower roller 16 downward. However, these structures alone are not sufficient. Figure 1 and Figure 3 As shown, a guide sleeve 21 is fixed in the middle of the frame cover. A guide loop 231 is inserted into the guide sleeve 21, and nuts at both ends of the guide sleeve 21 limit the position of the guide loop 231. The guide sleeve 21 guides the direction of the guide movement, and the nuts limit the position of the guide loop 231. In this way, the position of the upper roller can be adjusted by the cooperation of the springs installed in the upper spring sleeve 232 and the lower spring sleeve 233. The springs have a buffering effect. Without disassembling, the deformation of the spring can be adjusted by adjusting the position of the two nuts on the guide shaft 221, thereby affecting the elastic force of the upper roller on the material.

[0027] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for removing oxide scale, characterized in that: The device includes a frame base, which comprises a pressure roller frame and a motor frame. The pressure roller frame also includes a roller frame, comprising a left front support, a left rear support, a right front support, and a right rear support. The tops of the left and right front supports are connected by a frame cover, as are the tops of the left and right rear supports. It also includes a lower roller and an upper roller arranged parallel to it. The lower roller is fixed to the pressure roller frame by a bearing seat, and its end near the motor frame is connected to a pressure roller motor via a coupling, driving the lower roller to rotate. One end of the upper roller is connected to the left and right front supports via a pressure plate, and the other end is connected to the left and right rear supports via a pressure plate. Finally, it includes a vertical adjustment device for adjusting the vertical movement of the upper roller.

2. The descaling device as described in claim 1, characterized in that: It also includes a purge spray device, which is installed in the direction of the lower roller's advance.

3. The oxide scale removal device as described in claim 2, characterized in that: The upper roller includes a roller shaft, a roller fixed on the roller shaft, and a bearing housing that cooperates with the roller shaft.

4. The oxide scale removal device as described in claim 3, characterized in that: The pressure plate includes an adjusting plate, a fixed circular plate installed in the middle of the adjusting plate, a rotating pin connected to the roller shaft, and a limiting block used in conjunction with the rotating pin. The limiting block is fixed on the fixed circular plate.

5. The descaling device as described in claim 4, characterized in that: The vertical adjustment device includes a guide shaft, the upper end of which is provided with an external thread of a certain length, and the lower end of the guide shaft is connected to a limit block. A guide sleeve is fitted onto the outer ring of the guide shaft and has external threads; an upper spring sleeve is also welded to the upper end of the guide sleeve. The upper compression spring sleeve is installed on one end of the external thread of the guide shaft to compress the spring that is sleeved between the upper compression spring sleeve and the upper spring sleeve. The upper compression spring sleeve is adjusted and limited by the shim and the thread. A lower pressure spring sleeve, wherein the lower pressure spring sleeve is fitted onto the lower end of the guide sleeve; A fixed base plate is provided, with a limiting hole in the middle that cooperates with the limiting block. A lower spring sleeve is welded on the fixed plate, and a spring is installed between the lower spring sleeve and the lower compression spring sleeve. The fixed base plate is connected to the bearing seat by studs.

6. The oxide scale removal device as described in claim 5, characterized in that: A guide sleeve is fixed in the middle of the frame cover. The guide loop is inserted into the guide sleeve, and nuts are used to limit the guide loop at both ends of the guide sleeve.

7. The descaling device as described in claim 1, characterized in that: The frame cover is movably connected to the left front support and the right front support; the frame cover is movably connected to the left rear support and the right rear support.

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