A roasting ignition device, mobile continuous casting machine

Abstract

The utility model discloses a kind of baking ignition device and mobile continuous casting machine, applied to metallurgical technical field, baking ignition device includes: combustion nozzle, inside is equipped with cavity;Driving part, driving part separates cavity into first cavity and second cavity;Slide bar, the inside of slide bar is equipped with lumen, lumen is communicated with second cavity, the side wall of slide bar is also equipped with through hole, driving part movably sets on slide bar, and driving part can be moved from the side close to through hole close to import to another side under the impetus of gas;Scraping element, one side is attached with the inner wall of cavity, another side is set on driving part, the outer wall of slide bar is equipped with helical groove, when driving part moves relative to slide bar, helical groove drives driving part to rotate relative to slide bar.The utility model provides baking ignition device, can scrape tar on the cavity inner wall of combustion nozzle, effectively avoid tar deposition, block pipeline, reduce gas leakage risk, ensure safety production.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, and in particular to a baking and ignition device and a mobile continuous casting machine. Background Technology

[0002] Baking equipment, as a drying and heating device for equipment and facilities, is widely used in the metallurgical industry. During the operation of the baking and ignition device in the tundish of a continuous casting machine, blast furnace gas, as a commonly used fuel, easily produces tar byproducts during combustion. When tar combines with dust and water vapor, it forms an adhesive mixture that easily adheres to the inner wall of the pipes, causing blockages and affecting the normal baking of the tundish in the continuous casting machine, resulting in the continuous casting machine being unable to operate normally. Furthermore, pipe blockages can easily cause the pilot flame to go out, leading to gas leaks and threatening the lives of on-site workers.

[0003] Therefore, how to improve the reliability of the baking ignition device is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a baking ignition device and a mobile continuous casting machine, which can effectively avoid pipe blockage and ensure the reliable operation of the baking ignition device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A baking ignition device, comprising:

[0007] The burner has an internal cavity, and on both sides of the burner are an inlet and an outlet for gas to flow into or out of the burner. The inlet and the outlet are respectively connected to a gas source pipe and an igniter.

[0008] A drive unit is installed inside the cavity, which divides the cavity into a first cavity and a second cavity. The inlet communicates with the first cavity, and the outlet communicates with the second cavity.

[0009] A slide rod is fixedly installed in the cavity. The slide rod has a tube cavity inside, which communicates with the second cavity. The side wall of the slide rod is also provided with a through hole. The driving member is movably sleeved on the slide rod, and the driving member can move from the side near the through hole and the inlet to the other side under the push of the gas.

[0010] The scraper has one side that fits against the inner wall of the cavity and the other side that is disposed on the drive component. The scraper can move with the drive component.

[0011] Furthermore, the outer wall of the slide bar is provided with a spiral groove, the driving member is sealed to the spiral groove, and when the driving member moves relative to the slide bar, the spiral groove drives the driving member to rotate relative to the slide bar.

[0012] On the other hand, the inlet is located at the bottom of the burner, and the outlet is located at the top of the burner; both the inlet and the outlet are provided with stepped portions for connecting the gas source pipe and the igniter.

[0013] On the other hand, the outer periphery of the drive member is provided with a slot, the scraper is placed in the slot, and the drive member is slidable relative to the extending direction of the scraper.

[0014] On the other hand, the burner nozzle is cylindrical, the drive unit is disc-shaped, and the size of the drive unit is adapted to the inner cavity size of the burner nozzle; there are multiple scraping parts, which are evenly distributed along the circumference of the drive unit.

[0015] On the other hand, the driving component has a through hole in the middle, and a limiting step is provided in the through hole. The limiting step is adapted to the spiral groove, and a sealing component is also provided in the through hole to isolate the first cavity from the second cavity.

[0016] On the other hand, the scraper is rod-shaped and extends from the first cavity into the second cavity.

[0017] On the other hand, one end of the slide rod is installed at the bottom of the cavity, and the other end of the slide rod is suspended in the cavity, with the through hole located near the suspended end of the slide rod.

[0018] On the other hand, the distance between the through hole and the suspension end of the slide rod is greater than the thickness of the drive member along the axial direction of the burner.

[0019] On the other hand, the outlet is located between the slide bar and the scraper, and the projections of the outlet, the slide bar, and the scraper on the axial direction of the burner do not coincide.

[0020] This utility model also provides a mobile continuous casting machine, including the baking and ignition device described in any one of the above.

[0021] The baking ignition device provided by this utility model includes: a burner nozzle with an internal cavity, an inlet and an outlet on both axial sides of the burner nozzle for gas to flow into or out of the burner nozzle, the inlet and outlet being connected to a gas source pipe and an igniter respectively; a drive member installed in the cavity, the drive member dividing the cavity into a first cavity and a second cavity, the inlet communicating with the first cavity and the outlet communicating with the second cavity; and a slide rod fixed in the cavity, the slide rod having an internal tube communicating with the second cavity. The rod's side wall is also provided with a through hole. The driving member is movably sleeved on the slide rod, and the driving member can move from the side near the through hole and the inlet to the other side under the push of the gas. The scraper has one side attached to the inner wall of the cavity and the other side disposed on the driving member. The scraper can move with the driving member. Furthermore, the outer wall of the slide rod is provided with a spiral groove. The driving member is sealed to the spiral groove, and when the driving member moves relative to the slide rod, the spiral groove drives the driving member to rotate relative to the slide rod. The baking ignition device provided by this utility model, by setting the slide rod inside the burner and sleeve the driving component on the slide rod, when gas enters the first cavity from the inlet of the burner, it will push the driving component to move towards the outlet. Under the action of the spiral groove of the slide rod, the driving component rotates relative to the slide rod while moving. The rotation of the driving component will drive the scraper to rotate. The scraper is in contact with the inner wall of the cavity of the burner. While the scraper moves, it can scrape off the tar on the inner wall of the cavity of the burner, effectively preventing tar from accumulating and clogging the pipe, reducing the risk of gas leakage, and ensuring safe production.

[0022] The mobile continuous casting machine provided by this utility model is equipped with the above-mentioned baking and ignition device. Since the baking and ignition device has the above-mentioned technical effects, the mobile continuous casting machine equipped with the baking and ignition device should also have the corresponding technical effects. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A cross-sectional view of a specific embodiment of the baking ignition device provided by this utility model;

[0025] Figure 2This is a cross-sectional view of the baking ignition device provided by this utility model from another perspective.

[0026] Figure label:

[0027] Combustion nozzle 1; cavity 11; first cavity 1111; second cavity 112; inlet 12; outlet 13; drive component 2; slot 21; through hole 22; slide rod 3; tube 31; guide hole 32; spiral groove 33; scraper 4; igniter 5; gas supply pipe 6. Detailed Implementation

[0028] The core of this invention is to provide a baking ignition device and a mobile continuous casting machine, which can effectively scrape off the tar in the combustion nozzle cavity and reduce pipeline blockage problems.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Please refer to Figure 1 and Figure 2 , Figure 1 A cross-sectional view of a specific embodiment of the baking ignition device provided by this utility model; Figure 2 This is a cross-sectional view of the baking ignition device provided by this utility model from another perspective.

[0032] In this embodiment, the baking ignition device includes:

[0033] The burner 1, the gas supply pipe 6, and the igniter 5 are provided. The burner 1 has a cavity 11 inside. The burner 1 has an inlet 12 and an outlet 13 on both sides of its axial direction for gas to flow into or out of the burner 1. The inlet 12 and the outlet 13 are respectively connected to the gas supply pipe 6 and the igniter 5.

[0034] The drive unit 2 is installed in the cavity 11. The drive unit 2 divides the cavity 11 into a first cavity 111 and a second cavity 112. The inlet 12 is connected to the first cavity 111 and the outlet 13 is connected to the second cavity 112.

[0035] The slide rod 3 is fixed in the cavity 11. The slide rod 3 has a tube 31 inside, which is connected to the second cavity 112. The side wall of the slide rod 3 is also provided with a through hole 32. The driving member 2 is movably sleeved on the slide rod 3, and the driving member 2 can move from the side near the through hole 32 and the inlet 12 to the other side under the push of the gas.

[0036] The scraper 4 has one side attached to the inner wall of the cavity 11 and the other side is set on the drive member 2. The scraper 4 can move with the drive member 2.

[0037] Furthermore, the outer wall of the slide bar 3 is provided with a spiral groove 33, the driving member 2 is sealed to the spiral groove 33, and when the driving member 2 moves relative to the slide bar 3, the spiral groove 33 drives the driving member 2 to rotate relative to the slide bar 3.

[0038] Specifically, the burner nozzle 1 can be a cylindrical burner nozzle 1, with the inlet 12 and outlet 13 located on the axial end faces of the burner nozzle 1, respectively; the slide rod 3 is installed in the cavity 11 of the burner nozzle 1, the extension direction of the slide rod 3 is parallel to the axial direction of the burner nozzle 1, and the slide rod 3 coincides with the axis of the burner nozzle 1, so that the drive member 2 can rotate relative to the slide rod 3; the drive member 2 divides the cavity 11 into a first cavity 111 and a second cavity 112. When the movement position of the drive member 2 has not yet exceeded the through hole 32, the first cavity 111 and the second cavity 112 are separated. The cavity 112 provides isolation, meaning the periphery of the drive component 2 should be sealed to the inner wall of the cavity 11 of the burner 1. Of course, while ensuring a good seal between the drive component 2 and the inner wall of the cavity 11 of the burner 1, and between the drive component 2 and the slide rod 3, the drive component 2 should also be able to rotate smoothly. For example, rubber sealing rings can be installed between the drive component 2 and the inner wall of the cavity 11 of the burner 1, and between the drive component 2 and the slide rod 3. The size of the rubber sealing ring should not be too large, but it should be able to provide a seal while simultaneously ensuring the smooth rotation of the drive component. The rotation of component 2 is sufficient; the drive component 2 changes the volume of the first cavity 111 and the second cavity 112 by its own movement until the drive component 2 moves above the through hole 32. At this time, the through hole 32 is located in the first cavity 111. Gas enters the through hole 32 through the first cavity 111, and then enters the tube 31 of the slide rod 3 through the through hole 32. Since the tube 31 is connected to the second cavity 112, the gas smoothly enters the second cavity 112 and then flows out through the outlet 13. At this time, ignition can be performed. The sliding rod 3 has a spiral groove 33 on its outer wall. When the driving member 2 moves along the axial direction of the burner 1, it will rotate relative to the axis of the burner 1, thereby driving the scraper 4 to scrape the tar on the inner wall of the cavity 11 of the burner 1. After ignition, no more gas enters the inlet 12 of the burner 1, the driving member 2 is no longer pushed, and the driving member 2 will descend under the action of gravity and reset for the next use. The tar can be discharged through the outlet 13 or cleaned by disassembling the burner 1.

[0039] The baking ignition device provided by this utility model has a sliding rod 3 installed inside the burner nozzle 1, and a driving component 2 is sleeved on the sliding rod 3. When gas enters the first cavity 111 from the inlet 12 of the burner nozzle 1, it will push the driving component 2 to move towards the outlet 13. Under the action of the spiral groove 33 of the sliding rod 3, the driving component 2 rotates relative to the sliding rod 3 while moving. The rotation of the driving component 2 will drive the scraper 4 to rotate. The scraper 4 is in contact with the inner wall of the cavity 11 of the burner nozzle 1. While the scraper 4 is moving, it can scrape off the tar on the inner wall of the cavity 11 of the burner nozzle 1, effectively preventing tar from accumulating and clogging the pipe, reducing the risk of gas leakage, and ensuring safe production.

[0040] In some embodiments, inlet 12 is located at the bottom of burner 1 and inlet 13 is located at the top of burner 1; both inlet 12 and outlet 13 are provided with stepped portions for connecting gas source pipe 6 and igniter 5; igniter 5 can be an electronic igniter 5, which is convenient to use. The electronic igniter 5 is used to ignite the gas flowing out of outlet 13 of burner 1 to complete the ignition work.

[0041] In some embodiments, the drive component 2 and the slide rod 3, as well as the scraper component 4 and the drive component 2, are detachably connected. With this configuration, after ignition, the tar on the scraper can be cleaned by separating the drive component 2 from the slide rod 3 and the scraper component 4 from the drive component 2, ensuring safety for subsequent use. Specifically, by rotating the drive component 2 in the reverse direction, i.e., manually moving the drive component 2 from the bottom to the top of the slide rod 3, the drive component 2 can be removed from the slide rod 3. After the drive component 2 is removed, the scraper component 4 can be separated from the drive component 2, facilitating cleaning or replacement with a new scraper component 4.

[0042] In some embodiments, the outer periphery of the drive member 2 is provided with a slot 21, into which the scraper 4 is placed, and the drive member 2 can slide relative to the extending direction of the scraper 4. Specifically, the slot 21 facilitates the limiting of the scraper 4 without affecting the axial movement of the drive member 2 along the burner nozzle 1. Of course, after the baking ignition device is ignited, during the descent of the drive member 2, the tar on the scraper 4 will be collected at the outlet 13 under the action of the slot 21; alternatively, the tar can be discharged from the outlet 13 by separating the outlet 13 of the burner nozzle 1 from the gas source pipe 6.

[0043] In some embodiments, the burner nozzle 1 is cylindrical, the drive member 2 is disc-shaped, and the size of the drive member 2 is adapted to the inner cavity size of the burner nozzle 1; and there are multiple scraper members 4, which are evenly distributed along the circumference of the drive member 2; by providing multiple scraper members 4, the tar removal efficiency can be improved.

[0044] In some embodiments, the drive member 2 has a through hole 22 in the middle, and a limiting step is provided in the through hole 22. The limiting step is adapted to the spiral groove 33, and a sealing member is also provided in the through hole 22 to isolate the first cavity 111 from the second cavity 112.

[0045] In some embodiments, the scraper 4 is rod-shaped and extends from the first cavity 111 into the second cavity 112. This arrangement ensures that the scraper 4 can cover the inner wall of the cavity 11 of the burner 1 as much as possible. The length of the scraper 4 can be consistent with the axial height of the cavity 11 of the burner 1, so as to scrape off all the tar from the inner wall of the cavity 11 of the burner 1. Of course, in actual processing, the length of the scraper 4 should be slightly less than the axial height of the cavity 11 of the burner 1 to ensure that the scraper 4 can move smoothly.

[0046] In some embodiments, the inlet 12 of the burner 1 is provided with a stepped portion, that is, the stepped structure makes it easier to connect the gas source pipe 6 and improves the efficiency of disassembling and assembling the gas source pipe 6; of course, the structure of the inlet 12 of the burner 1 can also be set as needed, and any structure that can easily fix the gas source pipe 6 is acceptable.

[0047] In some embodiments, one end of the slide rod 3 is installed at the bottom of the cavity 11, and the other end of the slide rod 3 is suspended inside the cavity 11. The through hole 32 is provided near the suspended end of the slide rod 3. Specifically, by suspending the other end of the slide rod 3 inside the cavity 11, the tube 31 of the slide rod 3 is connected to the second cavity 112. The length of the slide rod 3 should not be too short. It should be ensured that the drive component 2 rotates at least once during the upward process to ensure the cleaning effect on all parts of the inner wall of the cavity 11.

[0048] In some embodiments, the distance between the through hole 32 and the suspension end of the slide rod 3 is greater than the thickness of the drive member 2 along the axial direction of the burner 1. This arrangement ensures that when the drive member 2 moves to the upper part of the through hole 32, there is still a certain amount of space on the slide rod 3 to support the drive member 2 and prevent the drive member 2 from falling off the slide rod 3.

[0049] In some embodiments, the outlet 13 is located between the slide rod 3 and the scraper 4, and the projections of the outlet 13, the slide rod 3, and the scraper 4 in the axial direction of the burner 1 do not coincide. This arrangement is to avoid interference between the slide rod 3 and the outlet 13 during rotation, which would affect the flow of gas into the cavity 11. At the same time, it avoids the outlet 13 affecting the installation of the slide rod 3.

[0050] Specifically, in one embodiment, the baking ignition device is preferably used for ignition of the ladle in a continuous casting machine. The ladle baking ignition device includes a burner 1, an electronic igniter 5, a scraper 4, a slide rod 3, and a drive member 2. One end of the burner 1 is open to provide a ignition source, i.e., the outlet 13 of the burner 1, and the other end of the burner 1 is connected to a gas source pipe 6, i.e., the inlet 12 of the burner 1. The electronic igniter 5 is located at the end of the burner 1 away from the gas source pipe 6, and is used to ignite the gas. The scraper 4 is installed inside the burner 1, and its circumferential outer wall abuts against the inner wall of the burner 1. The scraper 4 moves relative to the burner 1 to scrape the inner wall of the burner 1. The slide rod 3 is installed inside the burner 1, and its outer wall is provided with a spiral groove 33. The drive member 2 is slidably installed in the spiral groove 33. The drive member 2 is connected to the bottom of the burner 1. A first cavity 111 is formed. Gas is supplied into the first cavity 111 through the gas supply pipe 6, increasing the pressure inside the first cavity 111. This increases the pressure, thereby driving the drive member 2 to move and rotate along the axis of the slide rod 3. The slide rod 3 has a cavity 31 for gas flow. The upper part of the slide rod 3 is provided with a through hole 32, which is connected to the cavity 31. When the drive member 2 moves above the through hole 32, the gas enters the second cavity 112 of the burner 1 through the through hole 32 and along the cavity 31. Then, it is ignited through the outlet 13. The drive member 2 is provided with a slot 21. The scraper 4 is slidably installed in the slot 21. One side of the scraper 4 abuts against the inner wall of the burner 1. The scraper 4 rotates, thereby pushing the scraper 4 to scrape the inner wall of the burner 1, reducing the possibility of blockage of the burner 1. After the gas supply is completed, the drive member 2 can be reset by means of elasticity or gravity. The burner 1 is installed in the oven. Each time it is ignited, the scraper 4 can rotate to scrape the inner wall of the burner 1, reducing the possibility of tar flowing along the gas delivery pipeline and clogging the pipeline.

[0051] In addition to the aforementioned baking and ignition device, this utility model also provides a mobile continuous casting machine including the aforementioned baking and ignition device. For the structure of other parts of the mobile continuous casting machine, please refer to relevant technologies, which will not be repeated here.

[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0053] The baking ignition device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A toasting ignition device, characterized in that, include: The burner (1) has a cavity (11) inside. The burner (1) has an inlet (12) and an outlet (13) on its axial sides for gas to flow into or out of the burner (1). The inlet (12) and the outlet (13) are respectively connected to the gas source pipe (6) and the igniter (5). A drive unit (2) is installed in the cavity (11). The drive unit (2) divides the cavity (11) into a first cavity (111) and a second cavity (112). The inlet (12) is connected to the first cavity (111), and the outlet (13) is connected to the second cavity (112). The slide rod (3) is fixed in the cavity (11). The slide rod (3) has a tube (31) inside, which is connected to the second cavity (112). The side wall of the slide rod (3) is also provided with a through hole (32). The driving member (2) is movably sleeved on the slide rod (3), and the driving member (2) can move from the side near the through hole (32) and the inlet (12) to the other side under the push of the gas. The scraper (4) is attached to the inner wall of the cavity (11) on one side and is disposed on the drive member (2) on the other side. The scraper (4) can move with the drive member (2). Furthermore, the outer wall of the slide rod (3) is provided with a spiral groove (33), the driving member (2) is sealed to the spiral groove (33), and when the driving member (2) moves relative to the slide rod (3), the spiral groove (33) drives the driving member (2) to rotate relative to the slide rod (3).

2. The toasting ignition device of claim 1, wherein The inlet (12) is located at the bottom of the burner (1) and the outlet (13) is located at the top of the burner (1); both the inlet (12) and the outlet (13) are provided with stepped portions for connecting the gas source pipe (6) and the igniter (5).

3. The toasting ignition device of claim 1, wherein The outer periphery of the drive member (2) is provided with a slot (21), the scraper (4) is placed in the slot (21), and the drive member (2) can slide relative to the extension direction of the scraper (4).

4. The toasting ignition device of claim 3, wherein The burner (1) is cylindrical, the drive (2) is disc-shaped, and the size of the drive (2) is adapted to the inner cavity size of the burner (1); there are multiple scrapers (4) and they are evenly distributed along the circumference of the drive (2).

5. The toasting ignition device of claim 1, wherein The drive component (2) has a through hole (22) in the middle, and a limiting step is provided in the through hole (22). The limiting step is adapted to the spiral groove (33), and a sealing component is also provided in the through hole (22) to isolate the first cavity (111) from the second cavity (112).

6. The toasting ignition device of claim 1, wherein The scraper (4) is rod-shaped and extends from the first cavity (111) into the second cavity (112).

7. A toasting ignition device according to any one of claims 1 to 6, characterised in that, One end of the slide rod (3) is installed at the bottom of the cavity (11), and the other end of the slide rod (3) is suspended in the cavity (11). The through hole (32) is set near the suspended end of the slide rod (3).

8. The toasting ignition device of claim 7, wherein The distance between the through hole (32) and the suspension end of the slide rod (3) is greater than the thickness of the drive member (2) along the axial direction of the burner (1).

9. The toasting ignition device of claim 7, wherein The outlet (13) is located between the slide bar (3) and the scraper (4), and the projections of the outlet (13), the slide bar (3) and the scraper (4) on the axial direction of the burner (1) do not coincide.

10. A mobile continuous caster comprising a baking ignition device, characterized in that, The baking ignition device is the baking ignition device according to any one of claims 1 to 9.

Images