CN115491449A - Novel blast furnace raw gas diffusing tower and operation method thereof - Google Patents
Novel blast furnace raw gas diffusing tower and operation method thereof Download PDFInfo
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- CN115491449A CN115491449A CN202211155399.1A CN202211155399A CN115491449A CN 115491449 A CN115491449 A CN 115491449A CN 202211155399 A CN202211155399 A CN 202211155399A CN 115491449 A CN115491449 A CN 115491449A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000011521 glass Substances 0.000 claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 7
- 239000000571 coke Substances 0.000 claims 1
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 description 21
- 230000000740 bleeding effect Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
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Abstract
The invention relates to the technical field of metallurgy, and solves the problem that a glasses valve is limited to be in a closed state due to overlarge pressure difference between two sides, in particular to a novel blast furnace raw gas diffusing tower and an operation method thereof. According to the invention, through the matching between the arranged gate valve and the internal structure of the diversion branch pipe, when the butterfly valve is not closed tightly or the sealing surface of the butterfly valve is scoured and worn, the gas leakage amount is increased, the pressure gas continuously flows in, when the pressure equalizing valve is opened, the pressure equalizing pipe cannot effectively reduce the pressure between the front end of the glasses valve and the butterfly valve, the gate valve can still be controlled to be closed, the pressure gas is cut off, the diversion branch pipe introduces the pressure gas into a pipeline between the rear end of the valve plate of the glasses valve and the sealing valve group, the pressure difference between the front end and the rear end of the glasses valve can be effectively eliminated, and the normal opening of the glasses valve is realized.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a novel blast furnace raw gas diffusing tower and an operation method thereof.
Background
At present, when the existing blast furnace blow-off tower carries out operation blow-off treatment on blast furnace raw gas, the pressure difference between the front and the back of a glasses valve needs to be firstly treated to ensure that the glasses valve can be normally opened; during processing, the sealing valve group behind the butterfly valve and the glasses valve is closed firstly, so that a closed cavity is formed between the butterfly valve and the glasses valve, the pressure equalizing valve is opened, and pressure coal gas in a pipeline between the front of the glasses valve and the butterfly valve is introduced into the diffusing tower through the pressure equalizing pipe to be diffused, so that the front-back pressure difference of the glasses valve is reduced, and the front-back pressure difference of the glasses valve is less than or equal to 30KPa; and then closing the pressure equalizing valve, opening the glasses valve, opening the sealing valve group, opening the inlet butterfly valve, and finally adjusting and opening the raw gas pressure reducing valve group according to the top pressure condition of the blast furnace top to perform safe diffusion.
However, when the existing blast furnace raw gas diffusing tower diffuses, the phenomenon of leakage increase caused by the fact that the inlet butterfly valve is not tightly closed or the sealing surface of the inlet butterfly valve is scoured and abraded and other factors are not fully considered in the original design of the diffusing tower, when the pressure equalizing valve is opened, the pressure equalizing pipe cannot effectively reduce the pressure between the front of the glasses valve and the butterfly valve, the pressure difference between the front and the back of the valve plate of the glasses valve is overlarge, the glasses valve is always in a closed state and cannot be opened, and therefore, the novel blast furnace raw gas diffusing tower is designed, and the glasses valve can be smoothly opened under various complex working conditions, and the novel blast furnace raw gas diffusing tower is very necessary.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel blast furnace raw gas diffusing tower and an operation method thereof, aiming at effectively eliminating the front-back pressure difference of a glasses valve by optimizing the structure of a pressure-equalizing communicating piece, ensuring the normal opening capability of the glasses valve in front of the diffusing tower and solving the problem that the glasses valve is limited in a closed state due to the overlarge pressure difference of two sides.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel blast furnace raw gas diffuses tower and operation method thereof, the tower that diffuses includes diffuses the tower body, it is connected with the air guide pipe fitting to diffuse on the tower body, the air guide pipe fitting is including middle pipe and second pipe, be connected with voltage-sharing intercommunication piece on the second pipe, voltage-sharing intercommunication piece is including the equalizer tube, be equipped with pressure differential adjustment mechanism on the equalizer tube, pressure differential adjustment mechanism is including the gate valve of fixed mounting on the equalizer tube, just fixedly connected with water conservancy diversion branch pipe on the equalizer tube, water conservancy diversion branch pipe is carried on the back of the body in one end of equalizer tube and is extended to the middle pipe inside.
Preferably, the diversion branch pipe divides the pressure equalizing pipe into two sections, wherein one section of the pressure equalizing pipe is arranged linearly, the other section of the pressure equalizing pipe is arranged in an L shape, and the two sections of the pressure equalizing pipe are respectively arranged at two sides of the diversion branch pipe.
Preferably, the gate valve is arranged on a section of pressure equalizing pipe which is linearly arranged, and one end of the section of pressure equalizing pipe which is linearly arranged is connected with the diffusing tower body.
Preferably, a pressure equalizing valve is fixedly mounted on one section of the pressure equalizing pipe which is arranged in an L shape.
Preferably, one section of the pressure equalizing pipe which is arranged in an L shape extends to the inside of the second conduit back to one end of the flow guide branch pipe and is fixedly connected with the inner surface and the outer surface of the second conduit.
Preferably, one end of the second conduit is fixedly connected with a glasses valve, and the glasses valve is fixedly connected with one end of the middle conduit, back to one side of the second conduit.
Preferably, the second conduit is fixedly connected with a butterfly valve back to the end of the glasses valve, and the butterfly valve is fixedly connected with an inlet main pipe back to one side of the second conduit.
Preferably, the middle guide pipe is fixedly connected with a sealing valve group back to one end of the glasses valve, and an eccentric half-ball valve is arranged inside the sealing valve group.
Preferably, one side of the sealing valve group, which is opposite to the middle conduit, is connected with a pressure reducing valve group.
Preferably, the air guide pipe fitting comprises a first guide pipe, one end of the first guide pipe is fixedly connected with one side of the pressure reducing valve group, and the other end of the first guide pipe is connected with the diffusing tower body.
Preferably, the operation method of the novel blast furnace raw gas emission tower comprises the following steps: the pressure of a local pipeline between the rear end of the butterfly valve and the front end of the glasses valve is relieved; after the pressure of a local pipeline between the rear end of the butterfly valve and the front end of the glasses valve is relieved, closing the pressure equalizing valve, and then opening the glasses valve again; and opening the sealing valve group and the butterfly valve, and adjusting and opening the pressure reducing valve group according to the top pressure condition of the blast furnace top to perform safe diffusion.
Compared with the prior art, the invention provides a novel blast furnace raw gas diffusing tower and an operation method thereof, and the novel blast furnace raw gas diffusing tower has the following beneficial effects:
1. through the cooperation between the gate valve that sets up and the diversion branch pipe inner structure, close not tight or the sealed face scouring and tearing of butterfly valve when the butterfly valve, lead to the gas leakage volume increase, pressure coal gas continuously flows in, when opening the equalizer valve, the equalizer valve can not effectively reduce the preceding and butterfly valve between the glasses valve pressure, still steerable gate valve of closing, the cutting off pressure coal gas, the diversion branch pipe introduces pressure coal gas pipeline between glasses valve plate rear end and the sealing valve group, can effectively eliminate pressure differential around the glasses valve, realize that the glasses valve normally opens.
2. The design of adopting outstanding fluorine glue sealing washer on being different from current glasses valve plate, compressing tightly with the sealed face of disk seat and realizing sealedly, the eccentric hemisphere valve in the sealing valves adopts the sphere seal mode, because the difficult deposition of spherical sealed face can prevent effectively that sealing valves deposition from closing the sealed face erosive wear that not tight leads to, prolongs the operating cycle of sealing valves.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 shows a schematic cross-sectional view of a diffusion tower according to the prior art;
FIG. 2 shows a schematic cross-sectional view of a diffusion tower according to an embodiment of the present invention;
fig. 3 shows an enlarged schematic view at a in fig. 2.
In the figure: 1. a purge column body; 2. an inlet main pipe; 21. a butterfly valve; 3. an air guide pipe; 31. a first conduit; 32. an intermediate conduit; 33. a second conduit; 4. a pressure equalizing communicating member; 41. a pressure equalizing pipe; 42. a pressure equalizing valve; 5. a glasses valve; 6. a pressure relief valve bank; 7. a differential pressure adjusting mechanism; 71. a gate valve; 72. a diversion branch pipe; 8. a sealing valve group; 81. eccentric hemisphere valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "one side", "one end", "inner", "outer", and the like, indicate orientations or positional relationships and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, which shows a schematic cross-sectional view of a bleeding tower according to the prior art, before the blast furnace bleeding tower is used, because the butterfly valve 21 on the inlet main pipe 2 is closed to stop gas from flowing into the blast furnace raw gas bleeding tower system when the last bleeding is finished, after the butterfly valve 21 is closed, pressure gas still remains in the pipeline between the back of the butterfly valve 21 and the front end of the glasses valve 5, and when the glasses valve 5 is directly rotated to start the gas introduction and bleeding under the action of pressure, the glasses valve 5 is difficult to open due to excessive pressure difference existing in front of and behind the valve plate of the glasses valve 5, so that the start operation of the blast furnace raw gas bleeding tower cannot start normally as soon as possible; therefore, before the blast furnace diffusing tower is used each time, the pressure difference between the front and the back of the glasses valve 5 needs to be adjusted to ensure that the glasses valve 5 can be smoothly opened in the subsequent gas diffusing process;
when the existing blast furnace diffusing tower is put into operation and diffused, coal gas is introduced from one end of the inlet main pipe 2, in the first step, the butterfly valve 21 in front of the glasses valve 5 is firstly closed, the existing conventional sealing valve group behind the glasses valve 5 is closed, the in-pipeline pressure coal gas between the front of the glasses valve 5 and the butterfly valve 21 is introduced into the diffusing tower body 1 through the pressure-equalizing communicating piece 4 to be diffused, so that the pipeline pressure in front of the glasses valve 5 is reduced, the pressure difference in the front and at the back of the glasses valve 5 is smaller than or equal to 30KPa, then the glasses valve 5 is opened, and the internal passage of the pressure-equalizing communicating piece 4 is cut off.
The second step is that: after the glasses valve 5 is opened, the conventional sealing valve group is opened, the butterfly valve 21 at the inlet is opened, the gas source is recovered to convey the pressure gas of the diffusing tower system, and finally the raw gas pressure reducing valve group 6 is adjusted and opened according to the top pressure condition of the blast furnace top to perform safe diffusion; when the blast furnace raw gas is diffused by the diffusing tower;
when the existing blast furnace diffusing tower is put into operation and diffused, because the original design of the diffusing tower does not fully consider that the butterfly valve 21 at the inlet is not closed tightly or the sealing surface of the butterfly valve 21 is scoured and worn, the leakage amount is increased, coal gas is continuously conveyed to a diffusing tower system, the continuous coal gas passes through the butterfly valve 21, when the internal passage of the pressure equalizing communicating piece 4 is opened for pressure relief, the pressure between the front part of the glasses valve 5 and the butterfly valve 21 cannot be effectively reduced, the front-back pressure difference of the valve plate of the glasses valve 5 is large and is not less than 200KPa, the valve plate of the glasses valve 5 is stressed greatly, the glasses valve 5 is always in a closed state and cannot be opened.
Referring to fig. 2, the diffusing tower comprises a diffusing tower body 1, an air guide pipe 3 is connected to the diffusing tower body 1, the air guide pipe 3 comprises a middle guide pipe 32 and a second guide pipe 33, a pressure-equalizing communicating member 4 is connected to the second guide pipe 33, the pressure-equalizing communicating member 4 comprises a pressure-equalizing pipe 41, the pressure-equalizing pipe 41 is arranged as a branch for gas circulation pressure relief, and a pressure difference adjusting mechanism 7 is arranged on the pressure-equalizing pipe 41; the capacity of adjusting the pressure of the pipeline by further increasing the flowing direction of the controlled coal gas is further increased, the pressure difference adjusting mechanism 7 comprises a gate valve 71 fixedly installed on the pressure equalizing pipe 41, a flow guide branch pipe 72 is fixedly connected to the pressure equalizing pipe 41, one end, opposite to the pressure equalizing pipe 41, of the flow guide branch pipe 72 extends into the middle guide pipe 32, the flow guide branch pipe 72 divides the pressure equalizing pipe 41 into two sections, one section of the pressure equalizing pipe 41 is arranged in a straight line, the other section of the pressure equalizing pipe 41 is arranged in an approximate L shape, and the flow guide branch pipe 72 is communicated with the two sections of the pressure equalizing pipe 41.
The two sections of pressure equalizing pipes 41 are respectively arranged at two sides of the flow guide branch pipe 72, the gate valve 71 is arranged on one section of pressure equalizing pipe 41 which is linearly arranged, one end of the one section of pressure equalizing pipe 41 which is linearly arranged is connected with the bleeding tower body 1, the flow direction of coal gas in the pressure equalizing pipe 41 can be controlled by the gate valve 71, when the gate valve 71 is opened, the coal gas can flow along the inside of the pressure equalizing pipe 41 and enter the bleeding tower body 1, the one section of pressure equalizing pipe 41 which is L-shaped is fixedly provided with the pressure equalizing valve 42, one end of the one section of pressure equalizing pipe 41 which is L-shaped and is opposite to the one end of the flow guide branch pipe 72 extends into the inside of the second conduit 33 and is fixedly connected with the inner surface and the outer surface of the second conduit 33, one end of the second conduit 33 is fixedly connected with the glasses valve 5, and a component for adjusting the front-back pressure difference of the glasses valve 5 is added on the basis of the pressure equalizing communicating piece 4 through the arrangement of the pressure difference adjusting mechanism 7; the glasses valve 5 is fixedly connected with one end of the middle conduit 32 on one side opposite to the second conduit 33, the second conduit 33 is fixedly connected with a butterfly valve 21 on one side opposite to the glasses valve 5, the butterfly valve 21 is fixedly connected with an inlet main pipe 2 on one side opposite to the second conduit 33, the flow direction of pressure gas is controlled by adjusting the opening and closing of a valve plate of the glasses valve 5, when the glasses valve 5 is in an opening state, the pressure gas can pass through the glasses valve 5 from the second conduit 33 and enter the middle conduit 32, when the glasses valve 5 is in a closing state, the pressure gas circulating in the second conduit 33 cannot pass through the glasses valve 5, and under the action of pressure, the pressure gas is turned to enter the equalizing pipe 41, when a pressure equalizing valve 42 on the equalizing pipe 41 is in an opening state, the pressure gas flows along the inner wall of the equalizing pipe 41, one end of the middle conduit 32 is fixedly connected with the sealing valve group 8, an eccentric hemisphere valve 81 is arranged inside the sealing group 8, the eccentric hemisphere valve 81 is in a spherical sealing mode, as the spherical sealing surface is not easy to accumulate ash, the sealing surface of the sealing group 8 can be effectively prevented from being tightly closed, the sealing surface of the sealing group 8 is abraded by a sealing surface, the middle conduit 31, the other end of the first conduit 31 is connected with a pressure reducing tower, and the first conduit 31, and the other end of the first conduit 31, and the second conduit 31.
When the blast furnace diffusing tower is put into operation and diffused, coal gas is introduced from one end of the inlet main pipe 2, firstly, a local pipeline between the rear end of the butterfly valve 21 and the front end of the glasses valve 5 is decompressed, and pressure coal gas in the pipeline between the front end of the glasses valve 5 and the butterfly valve 21 is exhausted, so that the front-back pressure difference of a valve plate of the glasses valve 5 is reduced, the glasses valve 5 can be opened smoothly, the smooth guiding and flowing of the coal gas are ensured, even if the butterfly valve 21 at the inlet is not closed tightly or the sealing surface of the butterfly valve 21 is scoured and worn, when the pressure equalizing valve 42 is opened, the pressure equalizing pipe 41 cannot effectively reduce the pressure between the front end of the glasses valve 5 and the butterfly valve 21, the gate valve 71 can be controlled to be closed, the pressure at the rear end of the valve plate of the glasses valve 5 is increased, and the front-back pressure difference of the glasses valve 5 is reduced; the pressure relief of the local pipeline between the rear end of the butterfly valve 21 and the front end of the glasses valve 5 comprises the following steps: firstly, closing the butterfly valve 21, cutting off a supply source of pressure gas, then closing the sealing valve group 8 arranged at the rear end of the glasses valve 5, then closing the gate valve 71 arranged on the section of the pressure equalizing pipe 41 which is linearly arranged, and finally opening the pressure equalizing valve 42 fixedly arranged on the section of the pressure equalizing pipe 41 which is L-shaped arranged, and cutting off the passage of pressure gas introduced into the diffusing tower body 1 by closing the gate valve 71, introducing the pressure gas in the pipeline between the front of the glasses valve 5 and the butterfly valve 21 into the diversion branch pipe 72 and entering the middle guide pipe 32, so that the sealing valve group 8 is in a closed state, the pressure gas cannot pass through the sealing valve group 8, the collected gas can increase the pressure at the rear end of the valve plate of the glasses valve 5, reduce the pressure difference at the front end and the rear end of the valve plate of the glasses valve 5, and facilitate the smooth opening of the glasses valve 5; even if the butterfly valve 21 leaks to a certain extent at this time, the coal gas source continuously conveys coal gas to the diffusing tower system, and because the gate valve 71 and the sealing valve group 8 are closed, the coal gas enters the intermediate conduit 32 along the inner wall of the pipeline capable of flowing, namely the butterfly valve 21, the second conduit 33, the pressure equalizing pipe 41 and the flow guiding branch pipe 72 in sequence, so that the pressure at the rear end of the glasses valve 5 can be increased, and the pressure difference between the front and the rear of the glasses valve 5 can be reduced.
After the pressure of a local pipeline between the rear end of the butterfly valve 21 and the front end of the glasses valve 5 is relieved, closing the pressure equalizing valve 42, and then opening the glasses valve 5 again; opening the sealing valve group 8 and the butterfly valve 21, recovering the coal gas conveying from the coal gas source to the diffusing tower system, and at the moment, still closing the gate valve 71; and adjusting and opening the pressure reducing valve group 6 according to the top pressure condition of the blast furnace top to perform safe diffusion.
Referring to fig. 3 and fig. 2, when the gate valve 71 is opened, the gas can flow through the inside of the pressure equalizing tube 41 and enter the diffusing tower body 1, part of the gas still flows into the flow guiding branch tube 72 and enters the rear end of the glasses valve 5 and the front end region of the sealing valve group 8, after the flow is blocked, the gas flows back along the original path of the inner wall of the flow guiding branch tube 72 and enters the diffusing tower body 1 along the inner wall of the pressure equalizing tube 41, and when the gate valve 71 is closed, the pressure gas sequentially enters the rear side of the valve plate of the glasses valve 5 from the section of the pressure equalizing tube 41 and the flow guiding branch tube 72 which are arranged in an L shape, so that the pressure difference between the front and the rear of the valve plate of the glasses valve 5 is reduced, and the smooth opening of the glasses valve 5 is ensured.
Utilize the blast furnace to jointly overhaul the chance, carry out optimal design to the structure of pressure-equalizing intercommunication piece 4, be used for the pressure-equalizing pipeline of pressure release with the pipeline between the butterfly valve 21 of coal gas entry position before 5 glasses valves to improve, introduce the pressure coal gas behind 5 glasses valves and the pipeline between the valve group 8, can effectively eliminate 5 front and back pressure differentials of glasses valves, realize that 5 normally open glasses valves, effectively realize the normal operation of tower entire system that diffuses, ensure the safe and stable operation of blast furnace gas purification system.
In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. The utility model provides a novel blast furnace raw coke oven gas diffuses tower which characterized in that: the diffusing tower comprises a diffusing tower body (1), an air guide pipe fitting (3) is connected to the diffusing tower body (1), the air guide pipe fitting (3) comprises an intermediate guide pipe (32) and a second guide pipe (33), a pressure-equalizing communicating piece (4) is connected to the second guide pipe (33), the pressure-equalizing communicating piece (4) comprises a pressure-equalizing pipe (41), and a pressure difference adjusting mechanism (7) is arranged on the pressure-equalizing pipe (41);
the pressure difference adjusting mechanism (7) comprises a gate valve (71) fixedly installed on the pressure equalizing pipe (41), a flow guide branch pipe (72) is fixedly connected to the pressure equalizing pipe (41), and the flow guide branch pipe (72) extends to the inside of the middle guide pipe (32) back to one end of the pressure equalizing pipe (41).
2. The novel blast furnace crude gas diffusing tower as claimed in claim 1, characterized in that: the flow guide branch pipe (72) divides the pressure equalizing pipe (41) into two sections, wherein one section of the pressure equalizing pipe (41) is arranged linearly, the other section of the pressure equalizing pipe (41) is arranged in an L shape, and the two sections of the pressure equalizing pipe (41) are respectively arranged on two sides of the flow guide branch pipe (72).
3. The novel blast furnace raw gas diffusing tower as claimed in claim 2, characterized in that: the gate valve (71) is arranged on one section of pressure equalizing pipe (41) which is linearly arranged, and one end of the one section of pressure equalizing pipe (41) which is linearly arranged is connected with the diffusing tower body (1).
4. The novel blast furnace raw gas diffusing tower as claimed in claim 2, characterized in that: and a pressure equalizing valve (42) is fixedly arranged on one section of the pressure equalizing pipe (41) which is arranged in an L shape.
5. The novel blast furnace raw gas diffusing tower as claimed in claim 2 or 4, wherein: one section of the pressure equalizing pipe (41) which is arranged in an L shape, back to one end of the flow guide branch pipe (72), extends into the second conduit (33) and is fixedly connected with the inner surface and the outer surface of the second conduit (33).
6. The novel blast furnace raw gas diffusing tower as claimed in claim 1, wherein: one end of the second conduit (33) is fixedly connected with a glasses valve (5), and the glasses valve (5) is back on one side of the second conduit (33) and is fixedly connected with one end of the middle conduit (32).
7. The novel blast furnace raw gas diffusing tower as claimed in claim 1 or 6, wherein: second pipe (33) back to each other glasses valve (5) one end fixedly connected with butterfly valve (21), butterfly valve (21) back to each other second pipe (33) one side fixedly connected with entry is responsible for (2).
8. The novel blast furnace raw gas diffusing tower as claimed in claim 1, wherein: middle pipe (32) carry on the back in glasses valve (5) one end fixedly connected with sealing valve group (8), sealing valve group (8) inside is equipped with eccentric hemisphere valve (81).
9. The novel blast furnace crude gas diffusing tower as claimed in claim 8, characterized in that: and one side of the sealing valve group (8) back to the middle conduit (32) is connected with a pressure reducing valve group (6).
10. The novel blast furnace raw gas diffusing tower as claimed in claim 1, wherein: the air guide pipe fitting (3) comprises a first guide pipe (31), one end of the first guide pipe (31) is fixedly connected with one side of the pressure reducing valve group (6), and the other end of the first guide pipe (31) is connected with the diffusing tower body (1).
11. A method for operating a novel blast furnace raw gas blow-off tower, for operating a novel blast furnace raw gas blow-off tower according to any one of claims 1 to 10, the method comprising the steps of:
the pressure of a local pipeline between the rear end of the butterfly valve (21) and the front end of the glasses valve (5) is relieved;
after a local pipeline between the rear end of the butterfly valve (21) and the front end of the glasses valve (5) is decompressed, closing the pressure equalizing valve (42), and then opening the glasses valve (5) again;
and opening the sealing valve group (8) and the butterfly valve (21), and adjusting and opening the pressure reducing valve group (6) according to the top pressure condition of the blast furnace top to perform safe diffusion.
12. The operation method of the novel blast furnace raw gas emission tower as claimed in claim 11, wherein the step of decompressing the local pipeline between the rear end of the butterfly valve (21) and the front end of the glasses valve (5) comprises the following steps:
firstly, closing a butterfly valve (21), and then closing a sealing valve group (8) arranged at the rear end of the glasses valve (5);
then closing a gate valve (71) arranged on a section of the pressure equalizing pipe (41) which is linearly arranged;
and finally, opening a pressure equalizing valve (42) fixedly arranged on one section of the pressure equalizing pipe (41) in the L-shaped arrangement.
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| CN202211155399.1A CN115491449B (en) | 2022-09-21 | 2022-09-21 | Novel blast furnace raw gas diffusing tower and operation method thereof |
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| CN202211155399.1A CN115491449B (en) | 2022-09-21 | 2022-09-21 | Novel blast furnace raw gas diffusing tower and operation method thereof |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122235A (en) * | 2000-10-12 | 2002-04-26 | Daikin Ind Ltd | Fluid transmission circuit |
| CN201013944Y (en) * | 2007-02-13 | 2008-01-30 | 邢建栋 | Totally-enclosed large differential pressure start and stop glasses valve |
| CN101737097A (en) * | 2009-12-09 | 2010-06-16 | 北京首钢国际工程技术有限公司 | Power generation device and method of excessive pressure of furnace top of full-dry type blast furnace |
| CN102588644A (en) * | 2012-02-15 | 2012-07-18 | 河南开元空分集团有限公司 | Method for adjusting constant oxygen flow of metallurgical inner compression air separation device |
| CN102840344A (en) * | 2012-08-07 | 2012-12-26 | 浙江理工大学 | Valve plate of butterfly valve based on reduction of cavitation damage |
| CN202691091U (en) * | 2012-08-07 | 2013-01-23 | 浙江理工大学 | Butterfly valve plate based on reduction of cavitation erosion damage |
| CN103629422A (en) * | 2012-08-29 | 2014-03-12 | 上海宝信软件股份有限公司 | Differential pressure cushion valve for vacuumizing air changing |
| CN204848912U (en) * | 2015-07-17 | 2015-12-09 | 鞍钢集团工程技术有限公司 | Blast furnace gas dry process dust pelletizing system raw coke oven gas exhaust stack |
| CN204958966U (en) * | 2015-08-27 | 2016-01-13 | 四川德胜集团钒钛有限公司 | Coal gas steady voltage recovery unit |
| CN205064880U (en) * | 2015-10-30 | 2016-03-02 | 攀钢集团西昌钢钒有限公司 | Glasses valve voltage -sharing system of blast furnace raw coke oven gas |
| CN107850268A (en) * | 2015-09-18 | 2018-03-27 | 流动科技株式会社 | Possess water piping system and its control method with the check-valves for crashing mitigation capability |
| CN214368144U (en) * | 2021-03-22 | 2021-10-08 | 中国海洋石油集团有限公司 | Device for eliminating abnormal sound of check valve at outlet of reciprocating pump |
| CN113736494A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Coke oven gas collecting pipe voltage stabilization adjusting method |
| CN215636558U (en) * | 2021-08-17 | 2022-01-25 | 中冶南方都市环保工程技术股份有限公司 | Gas isolating device |
| CN114776871A (en) * | 2022-04-14 | 2022-07-22 | 中国航发沈阳发动机研究所 | Air entraining flow adjusting device of process spray pipe |
-
2022
- 2022-09-21 CN CN202211155399.1A patent/CN115491449B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002122235A (en) * | 2000-10-12 | 2002-04-26 | Daikin Ind Ltd | Fluid transmission circuit |
| CN201013944Y (en) * | 2007-02-13 | 2008-01-30 | 邢建栋 | Totally-enclosed large differential pressure start and stop glasses valve |
| CN101737097A (en) * | 2009-12-09 | 2010-06-16 | 北京首钢国际工程技术有限公司 | Power generation device and method of excessive pressure of furnace top of full-dry type blast furnace |
| CN102588644A (en) * | 2012-02-15 | 2012-07-18 | 河南开元空分集团有限公司 | Method for adjusting constant oxygen flow of metallurgical inner compression air separation device |
| CN102840344A (en) * | 2012-08-07 | 2012-12-26 | 浙江理工大学 | Valve plate of butterfly valve based on reduction of cavitation damage |
| CN202691091U (en) * | 2012-08-07 | 2013-01-23 | 浙江理工大学 | Butterfly valve plate based on reduction of cavitation erosion damage |
| CN103629422A (en) * | 2012-08-29 | 2014-03-12 | 上海宝信软件股份有限公司 | Differential pressure cushion valve for vacuumizing air changing |
| CN204848912U (en) * | 2015-07-17 | 2015-12-09 | 鞍钢集团工程技术有限公司 | Blast furnace gas dry process dust pelletizing system raw coke oven gas exhaust stack |
| CN204958966U (en) * | 2015-08-27 | 2016-01-13 | 四川德胜集团钒钛有限公司 | Coal gas steady voltage recovery unit |
| CN107850268A (en) * | 2015-09-18 | 2018-03-27 | 流动科技株式会社 | Possess water piping system and its control method with the check-valves for crashing mitigation capability |
| CN205064880U (en) * | 2015-10-30 | 2016-03-02 | 攀钢集团西昌钢钒有限公司 | Glasses valve voltage -sharing system of blast furnace raw coke oven gas |
| CN113736494A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Coke oven gas collecting pipe voltage stabilization adjusting method |
| CN214368144U (en) * | 2021-03-22 | 2021-10-08 | 中国海洋石油集团有限公司 | Device for eliminating abnormal sound of check valve at outlet of reciprocating pump |
| CN215636558U (en) * | 2021-08-17 | 2022-01-25 | 中冶南方都市环保工程技术股份有限公司 | Gas isolating device |
| CN114776871A (en) * | 2022-04-14 | 2022-07-22 | 中国航发沈阳发动机研究所 | Air entraining flow adjusting device of process spray pipe |
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| CN115491449B (en) | 2024-04-19 |
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