Long nozzle cold steel blowing device
By designing a long-water cold steel purge device including a metal pipe and a hat-shaped spray cap, the spray chamber, injection disc and positioning frame structure are used to spray oxygen at high speed to clean the cold steel on the inner wall of the long-water cold steel, the problem of poor cleaning effect in the prior art is solved, and efficient cold steel cleaning and product quality improvement are achieved.
Patent Information
- Application Number
- CN202421482656.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-26
Smart Images
Figure CN222778832U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallurgy, in particular to a long shroud cold steel blowing device. Background Art
[0002] During the continuous casting production process, the cold steel on the bowl and inner wall of the ladle shroud needs to be cleaned between each ladle of molten steel to ensure the sealing between the ladle shroud and the ladle water nozzle and the smooth flow inside the shroud, so as to effectively prevent quality and production interruption accidents caused by the entry of external nitrogen and oxygen elements and the narrowness of the internal channel of the shroud.
[0003] However, the cleaning effect of the existing curved pipe type simple blowing pipe is general, and the long water inlet bowl and inner wall are easy to adhere to the cold steel, resulting in poor sealing or reduced flow cross-section, which seriously affects product quality and production progress. Utility Model Content
[0004] To this end, the utility model provides a long shroud cold steel blowing device, which can well solve the above problems.
[0005] In order to achieve the purpose of this utility model, the following technical solutions are adopted:
[0006] A long-water-inlet cold steel purging device, comprising a metal tube and a blowing cap, wherein the metal tube is L-shaped as a whole, comprising a horizontal tube and a vertical tube, a stop valve is installed at one end of the horizontal tube, a tempering blocker is installed between the stop valve and the tube mouth of the horizontal tube, a blowing cap is installed at the bottom of the vertical tube, and the cross-section of the blowing cap is approximately in the shape of a bamboo hat, which is small at the top and large at the bottom.
[0007] The long water nozzle cold steel blowing device, wherein: the blowing cap includes a spray chamber, a spray disk and a positioning frame, the spray chamber is small at the top and large at the bottom, with an open top, and is connected to the vertical pipe of the metal pipe; the lower part of the spray chamber is fixedly connected to the spray disk, and the outer edge of the spray disk is fixedly connected to a circle of positioning frames.
[0008] The long-water nozzle cold steel blowing device, wherein: the outer wall of the positioning frame extends downward from the outer edge of the injection disk for a certain distance.
[0009] The long shroud cold steel blowing device, wherein: the injection disc comprises a circular disc and an injection pipe arranged at the center of the circular disc.
[0010] The long water nozzle cold steel blowing device, wherein: the injection pipe is processed with Laval holes.
[0011] The long water nozzle cold steel blowing device, wherein: at least one circle of spray holes is opened on the disc.
[0012] The long water nozzle cold steel blowing device, wherein: the number of the injection holes is 2 circles. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of the long shroud cold steel purge device;
[0014] Figure 2 It is a schematic diagram of the blowing cap structure;
[0015] Figure 3 It is a schematic diagram of the disc structure;
[0016] Figure 4 Schematic diagram of the blowing plate structure;
[0017] Figure 5 This is a schematic diagram of the installation structure of the long shroud cold steel purge device. DETAILED DESCRIPTION
[0018] The following is combined with Figure 1-5 , the specific implementation methods of the utility model are described in detail. The implementation methods are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model. Obviously, the embodiments described in the utility model 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 those skilled in the art without making creative work are within the scope of protection of the utility model.
[0019] like Figure 1 As shown, the long water nozzle cold steel blowing device includes a metal tube 3 and a blowing cap 4. The metal tube 3 is L-shaped as a whole, including a horizontal tube and a vertical tube. A stop valve 1 is installed at one end of the horizontal tube, and a tempering blocker 2 is installed between the stop valve and the tube mouth of the horizontal tube. A blowing cap 4 is installed at the bottom of the vertical tube. The cross-section of the blowing cap 4 is approximately in the shape of a bamboo hat, which is small at the top and large at the bottom.
[0020] like Figure 2 As shown, the spray cap 4 includes a spray chamber 5, a spray disc 6 and a positioning frame 7. The cross-section of the spray chamber 5 is conical, small at the top and large at the bottom, with an open top, and is connected to the vertical pipe of the metal tube 3; the lower part of the spray chamber 5 is fixedly connected to the spray disc 6, and the outer edge of the spray disc 6 is fixedly connected to a circle of positioning frames 7, and the outer wall of the positioning frame 7 extends downward from the outer edge of the spray disc 6 for a certain distance.
[0021] like Figure 3 , 4 As shown, the injection disk 6 includes a disk 8 and an injection tube 9 arranged in the center of the disk. The injection tube 9 is processed with a Laval hole. Two circles of injection holes 10 are opened on the disk 8. The injection holes are all through holes. The injection holes in each circle are densely arranged in a circle; the injection tube 9 is set at the center position of the two circles of injection holes.
[0022] like Figure 5As shown, when working, first put the positioning frame 7 of the long water nozzle cold steel purging device on the top of the long water nozzle 11, and then slowly open the valve 1, and the external oxygen enters the stainless steel pipe 3 through the flame arrester 2 and then quickly enters the blowing cap 4. Since the volume inside the injection chamber 5 suddenly increases, the oxygen speed there decreases and the pressure increases, and then the cleaning gas flows at a high speed to the surface of the bowl mouth of the long water nozzle and the inner wall of the water nozzle through the two rows of small hole injection holes 11 around the injection plate 6 disc 8 and the Laval hole of the injection pipe 9. Under high temperature, the oxygen burns and purges the cold steel adhered to the surface and inner wall of the bowl mouth of the long water nozzle 11, and is discharged from the long water nozzle along with the oxygen flow.
[0023] The long shroud cold steel blowing device of the utility model has the advantages of high safety, positioning performance, good cleaning effect and high promotion and utilization value.
[0024] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A long shroud cold steel blowing device, characterized in that: It includes a metal tube and a blowing cap. The metal tube is L-shaped as a whole, including a horizontal tube and a vertical tube. A stop valve is installed at one end of the horizontal tube. A backfire blocker is installed between the stop valve and the tube mouth of the horizontal tube. A blowing cap is installed at the bottom of the vertical tube. The cross-section of the blowing cap is approximately in the shape of a bamboo hat, which is small at the top and large at the bottom.
2. The long shroud cold steel blowing device according to claim 1 is characterized in that: The spray cap comprises a spray chamber, a spray disc and a positioning frame. The spray chamber is small at the top and large at the bottom, with an opening at the top, connected to the vertical pipe of the metal pipe; the lower part of the spray chamber is fixedly connected to the spray disc, and the outer edge of the spray disc is fixedly connected to a circle of positioning frames.
3. The long shroud cold steel blowing device according to claim 2 is characterized in that: The outer wall of the positioning frame extends downward from the outer edge of the spray disc for a certain distance.
4. The long shroud cold steel blowing device according to claim 2, characterized in that: The spray disc comprises a disc and a spray pipe arranged at the center of the disc.
5. The long shroud cold steel blowing device according to claim 4 is characterized in that: The injection pipe is machined with a Laval hole.
6. The long shroud cold steel blowing device according to claim 4, characterized in that: The disc is provided with at least one circle of injection holes.
7. The long shroud cold steel blowing device according to claim 6, characterized in that: The number of injection holes is 2 circles.