CN211999794U - Air supply arrangement of leak protection wind is used in blast furnace production - Google Patents
Air supply arrangement of leak protection wind is used in blast furnace production Download PDFInfo
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- CN211999794U CN211999794U CN201922482534.3U CN201922482534U CN211999794U CN 211999794 U CN211999794 U CN 211999794U CN 201922482534 U CN201922482534 U CN 201922482534U CN 211999794 U CN211999794 U CN 211999794U
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Abstract
The utility model belongs to the technical field of iron-making blast furnaces, in particular to an air supply device for preventing air leakage in blast furnace production, one end of a belly pipe is connected with a pipe sleeve, a marble valve is arranged in the belly pipe, a middle sleeve ejector rod is arranged on the pipe sleeve, the included angle formed by the marble valve and the middle sleeve ejector rod is 22.5 degrees, a first connecting pipe is fixedly connected with the middle position on the belly pipe, the top end of the first connecting pipe is fixedly connected with a first connecting disc, a plurality of notches are arranged on the first connecting disc, the top end of a second connecting pipe is fixedly connected with a lower compensator, the top end of the lower compensator is fixedly connected with a high-temperature resistant pipeline, the top end of the high-temperature resistant pipeline is fixedly connected with an upper compensator, and a horn pipeline is arranged on the upper compensator; the utility model discloses make the blow-through pipe coincide more with the pipe box face contact and restrained well cover upwarping problem, reduced air supply arrangement effectively and run out the wind phenomenon, provide the guarantee for stable and the safety in furnace condition.
Description
Technical Field
The utility model belongs to the technical field of the iron-making blast furnace, concretely relates to blast furnace production is with air supply arrangement of leak protection wind.
Background
Blast furnace iron production is the most important link in the metallurgical (steel) industry, and blast furnace smelting is a continuous and complex physicochemical process. The blast furnace is stable and smooth in production, and needs stable air quantity, air pressure and air temperature. The required amount of wind of blast furnace production, wind pressure are provided by the air-blower, after the hot-blast furnace heat transfer reaches the wind temperature requirement, get into the stove through hot-blast bustle pipe through blast furnace air supply arrangement, wind gap in, to the blast furnace of high wind temperature, high top pressure operation, take place the trouble that air inlet system leaks out, will influence the normal operation of blast furnace, light then the damping down is handled, will take place to burn through the accident when serious, cause huge loss for blast furnace production.
The air supply device of the iron-making blast furnace is a vital component in blast furnace equipment, is also a weak link in a hot air pipeline system, is a place where special conditions are easy to occur, is a key for determining whether the blast furnace can normally produce, and mainly plays a role in conveying hot air conveyed by a hot air surrounding pipe into a furnace hearth through an air opening.
For a long time, a marble valve and a tuyere middle sleeve ejector rod in an air supply device are positioned on the same horizontal line, collision is easy to occur, forced installation easily causes the phenomenon of wind leakage caused by untight fit between the front section of a belly pipe and a small sleeve, and the problem of wind leakage between the contact surfaces of the air inlet belly pipe and the tuyere small sleeve is one of the frequent faults of an air inlet system in blast furnace production.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air supply arrangement of leak protection wind is used in blast furnace production aims at solving and has in the above-mentioned background art in the air supply arrangement in marble valve and the tuyere cover ejector pin be in same water flat line, lead to identical not tight problem that arouses the phenomenon of leaking between belly pipe anterior segment and the little cover.
In order to achieve the above object, the utility model provides a following technical scheme: an air supply device for preventing air leakage in blast furnace production comprises a belly pipe and a second connecting pipe, wherein one end of the belly pipe is connected with a pipe sleeve, the belly pipe and the pipe sleeve can be installed and connected through a fastening device, a ball valve is arranged in the belly pipe, a middle sleeve ejector rod is arranged on the pipe sleeve, an included angle formed by the ball valve and the middle sleeve ejector rod is 22.5 degrees, a first connecting pipe is fixedly connected to the middle position of the belly pipe, a first connecting disc is fixedly connected to the top end of the first connecting pipe, a plurality of notches are formed in the first connecting disc, a second connecting disc is fixedly connected to the bottom end of the second connecting pipe, notches corresponding to the first connecting disc in size are formed in the second connecting disc, first fastening bolts are connected in the notches in a clamping mode, the first connecting disc and the second connecting disc are fixedly connected through fastening nuts, the top end of the second connecting pipe is fixedly connected with a lower compensator, the top end of the lower compensator is fixedly connected with a high-temperature-resistant pipeline, the top end of the high-temperature-resistant pipeline is fixedly connected with an upper compensator, and a horn pipeline is arranged on the upper compensator.
Preferably, the lower compensator comprises a guide cylinder, the upper end and the lower end of the guide cylinder are respectively and fixedly connected with a third connecting disc, a plurality of fixing blocks are arranged on the third connecting discs, and a supporting rod is fixedly connected between the upper fixing block and the lower fixing block.
Preferably, the top end of the second connecting pipe is fixedly connected with a third connecting disc, and the third connecting disc at the bottom end of the guide cylinder is fixedly connected with the third connecting disc at the top end of the second connecting pipe through a second fastening bolt.
Preferably, the bottom end of the high-temperature-resistant pipeline is fixedly connected with a third connecting disc, and the third connecting disc at the top end of the guide cylinder is fixedly connected with the third connecting disc at the bottom end of the high-temperature-resistant pipeline through a second fastening bolt.
Preferably, the upper compensator has the same structure as the lower compensator.
Preferably, the belly pipe further comprises a flange, the other end of the belly pipe is fixedly connected with the flange, and the flange is provided with a peephole.
Preferably, the blowpipe further comprises a fixed support frame, and the blowpipe is provided with the fixed support frame.
Compared with the prior art, the beneficial effects of the utility model are that: the spring valve in the original belly pipe and the middle sleeve ejector rod in the pipe sleeve are changed to be at a certain inclination angle in the same horizontal direction, the inclination angle is 22.5 degrees, a certain gap is formed between the spring valve and the middle sleeve ejector rod, so that the middle sleeve ejector rod and the belly pipe spring valve are effectively avoided, the contact between the belly pipe and the pipe sleeve surface is more consistent, the problem of upwarp of the middle sleeve is solved, the wind leakage phenomenon of an air supply device is effectively reduced, and the stable furnace condition and the safe production are guaranteed.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the mouth of a belly pipe of the present invention;
fig. 3 is a front view of the first connection plate and the second connection plate of the present invention;
in the figure: 1-belly pipe, 2-marble valve, 3-pipe sleeve, 4-middle sleeve ejector rod, 5-flange, 6-peephole, 7-first connecting pipe, 8-second connecting pipe, 9-first connecting disc, 10-second connecting disc, 11-notch, 12-first fastening bolt, 13-fastening nut, 14-lower compensator, 15-guide cylinder, 16-third connecting disc, 17-fixed block, 18-supporting rod, 19-second fastening bolt, 20-upper compensator, 21-high temperature resistant pipeline, 22-horn pipeline and 23-fixed support frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an air supply device for preventing air leakage in blast furnace production comprises a belly pipe 1 and a second connecting pipe 8, wherein one end of the belly pipe 1 is connected with a pipe sleeve 3, the belly pipe 1 and the pipe sleeve 3 can be installed and connected through a fastening device, a ball valve 2 is arranged in the belly pipe 1, a middle sleeve ejector rod 4 is arranged on the pipe sleeve 3, an included angle formed by the ball valve 2 and the middle sleeve ejector rod 4 is 22.5 degrees, a first connecting pipe 7 is fixedly connected to the middle position of the belly pipe 1, a first connecting disc 9 is fixedly connected to the top end of the first connecting pipe 7, a plurality of notches 11 are formed in the first connecting disc 9, a second connecting disc 10 is fixedly connected to the bottom end of the second connecting pipe 8, notches 11 corresponding to the number of the first connecting disc 9 are formed in the second connecting disc 10, first fastening bolts 12 are connected in the notches 11 in a clamping manner, the first fastening bolts 12 fixedly connect the first connecting disc 9 and the second connecting disc 10 through fastening nuts, the top end of the second connecting pipe 8 is fixedly connected with a lower compensator 14, the top end of the lower compensator 14 is fixedly connected with a high temperature resistant pipeline 21, the top end of the high temperature resistant pipeline 21 is fixedly connected with an upper compensator 20, and the upper compensator 20 is provided with a horn pipeline 22.
In the embodiment, the marble valve 2 in the belly pipe 1 and the middle sleeve ejector rod 4 on the pipe sleeve 3 are changed to have a certain inclination angle, the inclination angle is 22.5 degrees, so that a certain gap is formed between the marble valve 2 in the belly pipe 1 and the middle sleeve ejector rod 4 on the pipe sleeve 3, the middle sleeve ejector rod 4 and the marble valve 2 are effectively avoided, the belly pipe is contacted with the pipe sleeve 3 more coincidently, the upwarping problem of the middle sleeve ejector rod 4 is inhibited, the air leakage phenomenon of an air supply device is effectively reduced, when hot air is needed in an iron-making blast furnace, the hot air in a hot air surrounding pipe is sent into a horn pipeline 22, the hot air firstly passes through an upper compensator 20 and then a high temperature resistant pipeline 21 and then enters a lower compensator 14, the hot air passes through a second connecting pipe 8 and then enters the belly pipe 1 through a first connecting pipe 7, the first connecting pipe 7 and the second connecting pipe 8 are fixedly connected through a first connecting disc 9 and a second connecting disc 10, first fastening bolt 12 joint is in notch 11, and rethread fixation nut 13 cooperates first fixing bolt 12 to play fixed first connection pad 9 and second connection pad 10, and the first connecting pipe 7 of being convenient for and the dismantlement and the installation of second connecting pipe 8 enter into the iron-making furnace behind the hot-blast entering pipe box 3 in the belly pipe 1.
Further, the lower compensator 14 comprises a guide cylinder 15, the upper end and the lower end of the guide cylinder 15 are respectively and fixedly connected with a third connecting disc 16, a plurality of fixing blocks 17 are arranged on the third connecting disc 16, and a supporting rod 18 is fixedly connected between the upper fixing block 17 and the lower fixing block 17.
In the present embodiment, the guide cylinder 15 guides the hot air passing through the guide cylinder 15 to smoothly enter the next pipeline, and the support rod 18 is used to fixedly support the upper and lower third connecting discs 16 and simultaneously to smoothly pass through the lower compensator 14.
Further, the top end of the second connecting pipe 8 is fixedly connected with a third connecting disc 16, and the third connecting disc 16 at the bottom end of the guide cylinder 15 is fixedly connected with the third connecting disc 16 at the top end of the second connecting pipe 8 through a second fastening bolt 19.
In this embodiment, the third connecting disc 16 at the bottom end of the draft tube 15 and the third connecting disc 16 at the top end of the second connecting pipe 8 are fixedly connected through the second fastening bolt 19, so that the draft tube 15 is connected with the second connecting pipe 8 more tightly, and the problem of air leakage is avoided.
Further, the bottom end of the high temperature resistant pipeline 21 is fixedly connected with a third connecting disc 16, and the third connecting disc 16 at the top end of the guide cylinder 15 is fixedly connected with the third connecting disc 16 at the bottom end of the high temperature resistant pipeline 21 through a second fastening bolt 19.
In the embodiment, the third connecting disc 16 at the top end of the guide cylinder 15 and the third connecting disc 16 at the bottom end of the high temperature resistant pipeline 21 are fixedly connected through the second fastening bolt 19, so that the guide cylinder 15 is connected with the high temperature resistant pipeline 21 more tightly, and meanwhile, the problem of air leakage is avoided.
Further, the upper compensator 20 has the same structure as the lower compensator 14.
In the present embodiment, the upper compensator 20 has the same structure as the lower compensator 14 so that the hot air passing through the upper compensator 20 can be smoothly guided to enter the next duct.
Further, the belly pipe comprises a flange 5, the other end of the belly pipe 1 is fixedly connected with the flange 5, and a peephole 6 is formed in the flange 5.
In the present embodiment, the inside of the belly pipe 1 can be seen through the peephole 6 on the flange 5, which is beneficial for the staff to observe the flowing condition of the hot air in the belly pipe 1.
Further, the belly pipe device also comprises a fixed support frame 23, and the belly pipe 1 is provided with the fixed support frame 23.
In the present embodiment, the blowpipe 1 can be supported by the fixing support frame 23, which facilitates the use of the blower.
The utility model discloses a theory of operation and use flow: the utility model discloses install well the back, well cover ejector pin 4 on marble valve 2 and the pipe box 3 through belly pipe 1 changes into and has certain angle of inclination, the angle of inclination is 22.5, make have certain clearance between the well cover ejector pin 4 on marble valve 2 and the pipe box 3 in the belly pipe 1, thereby make well cover ejector pin 4 effectively avoid with marble valve 2, the effectual air supply arrangement that has reduced runs out the wind phenomenon, when needing hot-blast in the iron-making blast furnace, send into the horn pipeline 22 with hot-blast in the hot-blast bustle pipe, hot-blast in earlier through going into down compensator 14 after passing through high temperature resistant pipeline 21 behind compensator 20, hot-blast by down compensator 14 enter into belly pipe 1 by first connecting pipe 7 after passing through second connecting pipe 8 again, enter into the iron-making furnace behind the hot-blast entering into pipe box 3 in the belly pipe 1.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a blast furnace production is with air supply arrangement of leak protection wind which characterized in that: the blowpipe comprises a blowpipe (1) and a second connecting pipe (8), wherein one end of the blowpipe (1) is connected with a pipe sleeve (3), the blowpipe (1) and the pipe sleeve (3) can be installed and connected through a fastening device, a marble valve (2) is arranged in the blowpipe (1), a middle sleeve ejector rod (4) is arranged on the pipe sleeve (3), an included angle formed by the marble valve (2) and the middle sleeve ejector rod (4) is 22.5 degrees, a first connecting pipe (7) is fixedly connected to the middle position of the blowpipe (1), a first connecting disc (9) is fixedly connected to the top end of the first connecting pipe (7), a plurality of notches (11) are formed in the first connecting disc (9), a second connecting disc (10) is fixedly connected to the bottom end of the second connecting pipe (8), and notches (11) corresponding to the number of the first connecting disc (9) are formed in the second connecting disc (10), the utility model discloses a high temperature resistant pipe joint, including notch (11), joint connection has first fastening bolt (12) in notch (11), first fastening bolt (12) are through fastening nut (13) with first connection pad (9) and second connection pad (10) fixed connection, compensator (14) under second connecting pipe (8) top fixedly connected with, compensator (14) top fixedly connected with high temperature resistant pipeline (21) down, compensator (20) are gone up to high temperature resistant pipeline (21) top fixedly connected with, upward be provided with horn pipeline (22) on compensator (20).
2. The air supply device for preventing the air leakage in the blast furnace production as claimed in claim 1, wherein: the lower compensator (14) comprises a guide cylinder (15), wherein the upper end and the lower end of the guide cylinder (15) are fixedly connected with third connecting discs (16) respectively, a plurality of fixing blocks (17) are arranged on the third connecting discs (16), and a supporting rod (18) is fixedly connected between the upper fixing blocks and the lower fixing blocks (17).
3. The air supply device for preventing the air leakage in the blast furnace production as set forth in claim 2, characterized in that: the top end of the second connecting pipe (8) is fixedly connected with a third connecting disc (16), and the third connecting disc (16) at the bottom end of the guide cylinder (15) is fixedly connected with the third connecting disc (16) at the top end of the second connecting pipe (8) through a second fastening bolt (19).
4. The air supply device for preventing the air leakage in the blast furnace production as set forth in claim 2, characterized in that: the bottom end of the high-temperature-resistant pipeline (21) is fixedly connected with a third connecting disc (16), and the third connecting disc (16) at the top end of the guide cylinder (15) is fixedly connected with the third connecting disc (16) at the bottom end of the high-temperature-resistant pipeline (21) through a second fastening bolt (19).
5. The air supply device for preventing the air leakage in the blast furnace production as set forth in claim 2, characterized in that: the upper compensator (20) has the same structure as the lower compensator (14).
6. The air supply device for preventing the air leakage in the blast furnace production as claimed in claim 1, wherein: the belly pipe is characterized by further comprising a flange (5), the other end of the belly pipe (1) is fixedly connected with the flange (5), and a peephole (6) is formed in the flange (5).
7. The air supply device for preventing the air leakage in the blast furnace production as claimed in claim 1, wherein: the belly pipe is characterized by further comprising a fixed support frame (23), wherein the fixed support frame (23) is arranged on the belly pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922482534.3U CN211999794U (en) | 2019-12-30 | 2019-12-30 | Air supply arrangement of leak protection wind is used in blast furnace production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922482534.3U CN211999794U (en) | 2019-12-30 | 2019-12-30 | Air supply arrangement of leak protection wind is used in blast furnace production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211999794U true CN211999794U (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922482534.3U Active CN211999794U (en) | 2019-12-30 | 2019-12-30 | Air supply arrangement of leak protection wind is used in blast furnace production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211999794U (en) |
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2019
- 2019-12-30 CN CN201922482534.3U patent/CN211999794U/en active Active
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