CN216176477U - Continuous casting billet surface oxide layer clearing device - Google Patents

Continuous casting billet surface oxide layer clearing device Download PDF

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Publication number
CN216176477U
CN216176477U CN202122503700.0U CN202122503700U CN216176477U CN 216176477 U CN216176477 U CN 216176477U CN 202122503700 U CN202122503700 U CN 202122503700U CN 216176477 U CN216176477 U CN 216176477U
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continuous casting
movable scraper
oxide layer
casting billet
casting blank
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CN202122503700.0U
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李秀杰
陈阳
韩峰
皮利华
龚文辉
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MCC Southern Continuous Casting Technology Engineering Co Ltd
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MCC Southern Continuous Casting Technology Engineering Co Ltd
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Abstract

The utility model discloses a device for removing an oxide layer on the surface of a continuous casting billet, which comprises a basic frame, a movable scraper and a thrust mechanism, wherein the basic frame is fixed on a roller bed of a conveying roller bed of a continuous casting machine; the movable scraper is arranged above the movement route of the continuous casting billet, the upper end of the movable scraper is connected with the basic frame through the rotary support, and the lower end of the movable scraper can rotate around the upper end of the movable scraper; the thrust mechanism is arranged on the basic frame, the driving end of the thrust mechanism is connected with the movable scraper, and the thrust mechanism can drive the lower end of the movable scraper to rotate around the upper end of the movable scraper. The utility model has the beneficial effects that: the surface oxide layer of the casting blank is removed by using the movable scraper in a mechanical mode, compared with the traditional removal mode, the surface temperature of the casting blank is not reduced, and the casting blank temperature measuring device can reflect the surface temperature of the casting blank more truly; the movable scraper plate cannot pollute the working environment in the area in the cleaning process, is favorable for physical and mental health of post workers, and is environment-friendly and reliable.

Description

Continuous casting billet surface oxide layer clearing device
Technical Field
The utility model relates to the field of ferrous metallurgy continuous casting machinery, in particular to a device for removing an oxide layer on the surface of a continuous casting billet.
Background
At present, the competition of the steel industry is fierce, the profit margin of enterprises is continuously compressed, and the production and the operation face certain pressure. In order to save energy and reduce production cost in domestic steel mills, a direct rolling production process of continuous casting billets from continuous casting to steel rolling is actively explored, secondary heating of the continuous casting billets is avoided, energy consumption is reduced, and production cost is reduced.
The direct rolling production process of the continuous casting billet refers to that the continuous casting billet which is produced by a continuous casting machine and meets the requirement of rolling temperature is directly conveyed to a rolling mill for rolling by the continuous casting machine through a hot roller conveying way. The process flow needs to strictly control the temperature of the continuous casting slab and also needs to accurately measure whether the temperature of the surface of the continuous casting slab meets the requirement of direct rolling. Because the temperature of the continuous casting billet produced by the continuous casting machine is higher, the surface of the continuous casting billet can be oxidized by the atmosphere to generate a layer of iron oxide scale. The method is characterized in that high-pressure water or gas purging is adopted for an oxide layer on the surface of a casting blank at present, the temperature of the surface of the casting blank is reduced in two modes, the temperature of the oxide layer is lower than that of the surface of the casting blank, when a casting blank temperature measuring device directly measures the surface temperature of the casting blank, the displayed temperature is the temperature of the oxide layer instead of the real temperature of the surface of the casting blank, and therefore certain difficulty is brought to production operators for judging whether the temperature of the casting blank meets the direct rolling condition. In addition, although the two modes of high-pressure water or gas purging can remove partial oxides, high-temperature steam, industrial wastewater or waste gas can be generated, the working environment in the area is deteriorated, and the physical and psychological health of post workers is not facilitated. Therefore, there is a need for improvements in the prior art.
Disclosure of Invention
The utility model aims to provide an automatic cleaning device for a continuous casting billet surface oxide layer, which is simple in structure, environment-friendly and reliable, aiming at the defects of the prior art.
The technical scheme adopted by the utility model is as follows: a device for removing an oxide layer on the surface of a continuous casting billet comprises a basic frame, a movable scraper and a thrust mechanism, wherein the basic frame is fixed on a roller bed frame of a conveying roller bed of a continuous casting machine; the movable scraper is arranged above the movement route of the continuous casting billet, the upper end of the movable scraper is connected with the basic frame through the rotary support, and the lower end of the movable scraper can rotate around the upper end of the movable scraper; the pushing mechanism is installed on the foundation frame, the driving end of the pushing mechanism is connected with the movable scraper, the pushing mechanism can drive the lower end of the movable scraper to rotate around the upper end of the movable scraper, and the lowest point of the motion track of the lower end of the movable scraper is not higher than the highest point of the outer peripheral surface of the continuous casting blank.
According to the scheme, the plate surface direction of the movable scraper plate is perpendicular to the moving direction of the continuous casting billet.
According to the scheme, the thickness of the lower end of the movable scraper is gradually reduced to form a pointed structure with a wedge-shaped section.
According to the scheme, the movable scraper is additionally provided with transverse and/or longitudinal ribbed plates.
According to the scheme, the thrust mechanism comprises an air cylinder support and a pneumatic cylinder, the air cylinder support is fixed on the base frame, a cylinder body of the pneumatic cylinder is installed on the air cylinder support and is communicated with an air source through a pipeline, and a piston rod of the pneumatic cylinder is connected with the middle part of the movable scraper.
According to the scheme, the device for removing the oxide layer on the surface of the continuous casting blank is additionally provided with a computer, a casting blank signal detector and an electromagnetic valve, wherein the computer is respectively connected with the casting blank signal detector and the electromagnetic valve; the casting blank signal detector is arranged on a side frame of the roller way in the blank coming direction; the electromagnetic valve is arranged on a communicating pipeline between the pneumatic cylinder and the air source; the casting blank signal detector is used for detecting whether the continuous casting blank moves in place or not and sending a continuous casting blank in-place signal to the computer, and the computer sends an instruction according to the continuous casting blank in-place signal and controls the electromagnetic valve to be opened and closed.
According to the scheme, the basic frame is made of section steel in a splicing mode and is welded on a roller bed frame of a conveying roller bed of a continuous casting machine.
According to the scheme, the movable scraper is made by cutting a steel plate.
The utility model has the beneficial effects that: the utility model utilizes the movable scraper as a mechanical mode to remove the surface oxide layer of the casting blank, compared with the traditional high-pressure water or gas medium blowing mode, the temperature of the surface of the casting blank is not reduced, and the casting blank temperature measuring device can reflect the surface temperature of the casting blank more truly; in addition, the movable scraper plate cannot pollute the working environment in the area in the cleaning process, is favorable for physical and psychological health of post workers, and is environment-friendly and reliable. The utility model has simple structure, reasonable design and high integration degree.
Drawings
Fig. 1 is a mechanical structure diagram of an embodiment of the present invention.
Fig. 2 is a connection diagram of the control structure of the present embodiment.
Wherein: 1. a movable scraper; 2. a base frame; 3. rotating the support; 4. a pneumatic cylinder; 5. a cylinder support; 6. a casting blank signal detector; 7. an electromagnetic valve; 8. a computer; 9. a gas source; 10. a roller bed; 11. a conveying roller; 12. a roller bed frame.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
The device for removing the oxide layer on the surface of the continuous casting billet comprises a basic frame 2, a movable scraper 1 and a thrust mechanism, wherein the basic frame 2 is fixed on a roller bed frame 12 of a continuous casting machine conveying roller bed 10; the movable scraper plate 1 is arranged above a continuous casting billet motion line, the upper end of the movable scraper plate 1 is connected with the base frame 2 through the rotary support 3, and the lower end of the movable scraper plate 1 can rotate around the upper end; the pushing mechanism is arranged on the foundation frame 2, the driving end of the pushing mechanism is connected with the movable scraper 1, the pushing mechanism can drive the lower end of the movable scraper 1 to rotate around the upper end of the movable scraper 1, and the lowest point of the motion track of the lower end of the movable scraper 1 is not higher than the highest point of the outer peripheral surface of the continuous casting billet.
Preferably, the plate surface direction of the movable scraper 1 is perpendicular to the movement direction of the continuous casting billet.
Preferably, the thickness of the lower end of the movable scraper 1 is gradually reduced to form a pointed structure with a wedge-shaped section, so that an oxide layer on the surface of the continuous casting billet can be conveniently scraped.
Preferably, the movable scraper 1 is added with transverse and/or longitudinal ribs to improve the strength of the movable scraper 1.
Preferably, the thrust mechanism comprises an air cylinder support 5 and an air cylinder 4, the air cylinder support 5 is fixed on the base frame 2, a cylinder body of the air cylinder 4 is installed on the air cylinder support 5 and is communicated with an air source 9 through a pipeline, a piston rod of the air cylinder 4 is connected with the middle part of the movable scraper 1, and specifically, the piston rod is connected with the middle part of the movable scraper 1 through the air cylinder support 5.
Preferably, the device for removing the oxide layer on the surface of the continuous casting blank is additionally provided with a computer 8, a casting blank signal detector 6 and an electromagnetic valve 7, wherein the computer 8 is respectively connected with the casting blank signal detector 6 and the electromagnetic valve 7; the casting blank signal detector 6 is arranged on a roller bed frame in the blank coming direction; the electromagnetic valve 7 is arranged on a communicating pipeline between the pneumatic cylinder 4 and the air source 9; the casting blank signal detector 6 is used for detecting whether the continuous casting blank moves in place (detecting whether the head and the tail of the continuous casting blank are in place) and sending a continuous casting blank in-place signal to the computer 8, and the computer 8 sends an instruction according to the continuous casting blank in-place signal to control the opening and closing of the electromagnetic valve 7, as shown in fig. 2.
In the utility model, the base frame 2 is made by splicing section steel and can be welded on a roller bed frame 12 of a conveying roller bed 10 of a continuous casting machine; the basic frame 2 is arranged in front of a casting blank temperature measuring point and determined according to the process arrangement condition of an actual continuous casting machine. The movable scraper 1 is made of steel plates through cutting, and is additionally provided with transverse and longitudinal rib plates. The upper end of the movable scraper 1 is connected with the rotating shaft support through a rotating shaft, and the rotating shaft can be made of thick-wall steel pipes or steel bars. The rotation axis is installed with rotatory support 3 cooperation, and rotatory support 3 is installed on basic frame 2 to realize that movable scraper blade 1 is connected with basic frame 2, and the duplex winding rotates about the rotation axis. An air cylinder support 5 is arranged on the movable scraper 1 and the base frame 2, the cylinder body of the pneumatic cylinder 4 is fixed on the base frame 2 through the air cylinder support 5, and the piston rod of the pneumatic cylinder 4 is connected with the movable scraper 1. When the piston rod of the pneumatic cylinder 4 extends or retracts, the movable scraper 1 can be driven to rotate. The casting blank signal detector 6 is arranged on a side frame in the blank coming direction, and is staggered with the contact position of the movable scraper 1 and the upper surface of the continuous casting blank by a certain distance, the distance can be determined by the movement speed of the continuous casting blank and the falling time of the scraper in place, and the head of the continuous casting blank is not contacted with the movable scraper 1 when the movable scraper 1 is in place.
The working principle of the utility model is as follows:
1. the continuous casting billet is carried by conveying roller 12, when the continuous casting billet passes through conveying roller frame 11 and moves to scraping the sediment region, casting blank signal detector 6 detects the continuous casting billet head and targets in place the back, pass through the cable transmission with the signal and give computer 8, computer 8 gives 4 piston rods of pneumatic cylinder and stretches out the signal instruction, and transmit the instruction to solenoid valve 7, solenoid valve 7 control air supply 9 provides power to the rodless chamber of pneumatic cylinder 4 (air supply 9 can be compressed air or nitrogen gas), the piston rod of gas drive pneumatic cylinder 4 stretches out, push down movable scraper blade 5 and make its and continuous casting billet surface contact and keep, strike off the oxide layer on the continuous casting billet.
2. The continuous casting billet continues to move forward, when the tail of the continuous casting billet is detected to be in place by the casting billet signal detector 6, a signal is transmitted to the computer 8, the computer 8 gives a retraction signal instruction of a piston rod of the pneumatic cylinder 4 and transmits the instruction to the electromagnetic valve 7, the electromagnetic valve 7 controls the air source 9 to supply air to a rod cavity of the pneumatic cylinder 4, the air drives the piston rod of the pneumatic cylinder 4 to retract, the movable scraper plate 1 is lifted to be separated from the surface of the continuous casting billet, and the slag scraping action is finished.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. The device for removing the oxide layer on the surface of the continuous casting billet is characterized by comprising a basic frame, a movable scraper and a thrust mechanism, wherein the basic frame is fixed on a roller bed frame of a conveying roller bed of a continuous casting machine; the movable scraper is arranged above the movement route of the continuous casting billet, the upper end of the movable scraper is connected with the basic frame through the rotary support, and the lower end of the movable scraper can rotate around the upper end of the movable scraper; the pushing mechanism is installed on the foundation frame, the driving end of the pushing mechanism is connected with the movable scraper, the pushing mechanism can drive the lower end of the movable scraper to rotate around the upper end of the movable scraper, and the lowest point of the motion track of the lower end of the movable scraper is not higher than the highest point of the outer peripheral surface of the continuous casting blank.
2. The apparatus for removing an oxide layer on the surface of a continuous casting slab as claimed in claim 1, wherein the direction of the plate surface of the movable scraper is perpendicular to the direction of movement of the continuous casting slab.
3. The apparatus for removing an oxide layer on the surface of a continuous casting slab as claimed in claim 1, wherein the thickness of the lower end of the movable scraper is gradually decreased to form a pointed structure having a wedge-shaped cross section.
4. The apparatus for removing a surface oxide layer from a continuous casting slab as claimed in claim 1, wherein the movable blade is added with transverse and/or longitudinal ribs.
5. The device for removing the oxide layer on the surface of the continuous casting billet as claimed in claim 1, wherein the thrust mechanism comprises a cylinder support and a pneumatic cylinder, the cylinder support is fixed on the base frame, the cylinder body of the pneumatic cylinder is arranged on the cylinder support and is communicated with an air source through a pipeline, and the piston rod of the pneumatic cylinder is connected with the middle part of the movable scraper.
6. The device for removing the surface oxidation layer of the continuous casting billet according to claim 5, wherein a computer, a casting billet signal detector and an electromagnetic valve are additionally arranged on the device for removing the surface oxidation layer of the continuous casting billet, and the computer is respectively connected with the casting billet signal detector and the electromagnetic valve; the casting blank signal detector is arranged on a side frame of the roller way in the blank coming direction; the electromagnetic valve is arranged on a communicating pipeline between the pneumatic cylinder and the air source; the casting blank signal detector is used for detecting whether the continuous casting blank moves in place or not and sending a continuous casting blank in-place signal to the computer, and the computer sends an instruction according to the continuous casting blank in-place signal and controls the electromagnetic valve to be opened and closed.
7. The device for removing the oxide layer on the surface of the continuous casting billet according to claim 1, wherein the base frame is made by splicing section steels and is welded on a roller frame of a conveying roller way of a continuous casting machine.
8. The apparatus for removing an oxide layer on the surface of a continuous casting slab as claimed in claim 1, wherein the movable scraper is cut from a steel plate.
CN202122503700.0U 2021-10-18 2021-10-18 Continuous casting billet surface oxide layer clearing device Active CN216176477U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122503700.0U CN216176477U (en) 2021-10-18 2021-10-18 Continuous casting billet surface oxide layer clearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122503700.0U CN216176477U (en) 2021-10-18 2021-10-18 Continuous casting billet surface oxide layer clearing device

Publications (1)

Publication Number Publication Date
CN216176477U true CN216176477U (en) 2022-04-05

Family

ID=80883740

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122503700.0U Active CN216176477U (en) 2021-10-18 2021-10-18 Continuous casting billet surface oxide layer clearing device

Country Status (1)

Country Link
CN (1) CN216176477U (en)

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