CN216404443U - Metallurgical equipment desulfurization system spray gun dust removal sealing device - Google Patents
Metallurgical equipment desulfurization system spray gun dust removal sealing device Download PDFInfo
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- CN216404443U CN216404443U CN202122774807.9U CN202122774807U CN216404443U CN 216404443 U CN216404443 U CN 216404443U CN 202122774807 U CN202122774807 U CN 202122774807U CN 216404443 U CN216404443 U CN 216404443U
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Abstract
The utility model provides a dust removal sealing device for a spray gun of a desulfurization system of metallurgical equipment, belongs to the field of metallurgical equipment, and solves the problems that smoke dust overflows, coal gas leaks and equipment is burnt out due to the fact that smoke dust and flame emitted from a spray gun opening cannot be completely pressed back into a flue because the nitrogen sealing plug and a nitrogen sealing seat are not well sealed. The sealing device comprises a flange plate, wherein a double-layer sleeve is fixed on the flange plate, the double-layer sleeve comprises an outer layer sleeve and an inner layer sleeve, the outer layer sleeve is larger than the inner layer sleeve, a sealing cavity is formed by an annular space between the outer layer sleeve and the inner layer sleeve through a sealing plate, a plurality of air outlet holes are formed in the lower portion of the sealing cavity along the circumference, a plurality of air inlet pipes communicated with the sealing cavity are evenly arranged on the outer wall of the outer layer sleeve, a spray gun is arranged in the inner layer sleeve, and a cover plate is fixed on the spray gun. This device carries the blowout of metal splash to a large amount of gases in the converting period in the desulfurization furnace, plays effectual sealed effect, and the energy saving, reduction in production cost guarantees that the environmental protection system of smelting is up to standard.
Description
Technical Field
The utility model belongs to the field of metallurgical equipment, and particularly relates to a dust removal sealing device for a spray gun of a desulfurization system of metallurgical equipment.
Background
With the development of metallurgical industry, the requirements on environmental protection, cost control and steel-making quality are improved, and the requirements on steel-making equipment are higher and higher. The environment-friendly dust removal sealing device of the molten metal desulfurization system is arranged at a descending inlet of a spray gun of the desulfurization equipment, and is used for blocking smoke produced during smelting and upward flame, so that the effects of purifying the smoke, extinguishing the flame and protecting the environment are achieved. Nitrogen gas seal seat is installed on 2 desulfurization equipment spray gun upper portions of original steel mill, its main function be with the spray gun on the nitrogen plug cooperation, during the smelting nitrogen gas pass through the pipeline and get into in the nitrogen seal seat to through nitrogen seal seat inside hole and nitrogen plug between form nitrogen gas air curtain, play and cut off the effect, prevent that a large amount of gas carries the metal splash blowout during converting in the desulfurization equipment stove, play effectual sealed, the effect of putting out a fire. The nitrogen sealing plug and the nitrogen sealing seat of the spray gun are used in pairs, and the nitrogen sealing seat is installed on the water jacket of the spray gun and is fixedly connected with the water jacket of the spray gun. The nitrogen seal seat is internally welded with a seal cavity which is an air seal channel, 24 rectangular air outlets are uniformly distributed on a 135-degree conical surface of the nitrogen seal seat, the angle is 45 degrees upwards, the nitrogen seal plug is fixed on the oxygen lance body, the conical surface is 45 degrees, and a round hole with the diameter of 16mm is formed on the conical surface. This structure has the following disadvantages: 1. the total sectional area of the air outlet is far larger than that of the air inlet, so that the pressure of the air outlet is too small, coal gas and flame can not be sealed, and the consumption of nitrogen is high; 2. the air outlet on the nitrogen seal seat is upward at 45 degrees, and an air curtain generated by the nitrogen seal is upward during blowing, so that the sealing effect is poor; 3. the fit clearance is big, is unfavorable for proofreading and determine the rifle position, and when the spray gun took place to squint, venthole and circular recess dislocation, sealed effect is poor.
When the desulfurization is smelted, the nitrogen sealing plug is seated in the nitrogen sealing seat, nitrogen enters the sealing cavity through the air inlet pipe and enters the nitrogen sealing plug sealing groove through the air outlet hole, a horizontal air curtain cover is formed at the joint of two conical surfaces, the original structure is in actual use, the sealing formed between the nitrogen sealing plug and the nitrogen sealing seat is not good, smoke and flame emitted from a spray gun port cannot be completely pressed back into a flue, the smoke and dust overflow is caused, the environmental pollution is caused, coal gas leaks, equipment is burnt out, and the smooth production with fast rhythm cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dust removal sealing device for a spray gun of a desulfurization system of metallurgical equipment, which is used for solving the problems that when the original structure is actually used, the sealing between a nitrogen sealing plug and a nitrogen sealing seat is poor, smoke and flame emitted from a spray gun port cannot be completely pressed back into a flue, the smoke and the flame overflow, the environmental pollution, the coal gas leakage, the equipment burnout and the like are caused.
The technical scheme of the utility model is as follows:
the utility model provides a metallurgical equipment desulfurization system spray gun dust removal sealing device, includes the ring flange, is fixed with double-deck sleeve on the ring flange, and double-deck sleeve includes outer sleeve, inlayer sleeve, and outer sleeve is bigger than the inlayer sleeve, the annular space between outer sleeve and the inlayer sleeve passes through the closing plate and constitutes sealed chamber, open along the circumference sealed chamber lower part has a plurality of ventholes, evenly is equipped with a plurality of intake pipes that link up with sealed chamber on the outer wall of outer sleeve, is equipped with the spray gun in the inlayer sleeve, is fixed with the apron on the spray gun.
Furthermore, the sealing cavity is composed of an inner wall of the outer sleeve, an outer wall of the inner sleeve, an upper sealing plate and a lower sealing plate, the outer sleeve is connected with the upper portion of the inner sleeve through the upper sealing plate, and the outer sleeve is connected with the lower portion of the inner sleeve through the lower sealing plate.
Furthermore, a plurality of air outlet holes are formed in the lower sealing plate along the circumferential direction.
Furthermore, two air inlet pipes communicated with the sealing cavity are uniformly arranged on the outer wall of the outer-layer sleeve.
Further, the cover plate is in contact with the upper sealing plate.
The utility model has the beneficial effects that:
high-pressure steam enters the sealing cavity through the air inlet pipe and then enters the inner-layer sleeve through the air outlet hole to form a steam sealing layer, and smoke, coal gas and flame emitted from the oxygen lance port are quickly sealed and pressed back into the flue.
In the molten metal smelting system, in order to achieve the requirements of improving the environment and preventing explosion, a large amount of gas in the converting period in the desulfurizing furnace carries metal splashes to be sprayed out, so that the effective sealing effect is achieved, the energy consumption is saved, the production cost and the process energy consumption are reduced, the smelting environment-friendly system is guaranteed to reach the standard, and the economic benefit of an enterprise is increased.
After the self-produced steam of the smelting converter body is used as a sealing medium, the pressure requirement of use is met, the spray gun can be rapidly cooled to stick slag, the spray gun is favorable for scraping the slag and dropping, the temperature can be rapidly reduced, the steam sealing temperature is reduced, the effective fire extinguishing effect can be achieved, the harm to operators caused by toxic and harmful smoke and dust leakage during smelting is reduced, the energy consumption is saved, the smelting cost can be reduced, and the smelting environment is guaranteed to reach the standard.
Compared with the traditional nitrogen seal, the steam seal used by the spray gun port of the desulfurization equipment makes full use of the amount of the recovered steam released by the smelting converter on one hand, reduces the nitrogen consumption on the other hand, reduces the production cost and the process energy consumption, and increases the economic benefit of enterprises.
The utility model has simple structure, even ejected steam pressure, good functions of evolving smoke dust and extinguishing flame, energy consumption saving, production cost reduction and process energy consumption reduction, ensures that the smelting environment-friendly system reaches the standard, and increases the economic benefit of enterprises.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic illustration of the non-operative position of the present invention;
FIG. 3 is a schematic view of the working position of the present invention;
FIG. 4 is a schematic view of a dual layer sleeve construction of the present invention;
the reference numbers are as follows: 1-a spray gun; 2, covering a plate; 3-double-layer sleeve; 4-a flange plate; 5, an air inlet pipe; 6-air outlet holes; 7-an outer sleeve; 8-inner sleeve; 9-upper sealing plate; 10-lower sealing plate; 11-a sealed cavity;
the specific implementation mode is as follows:
the utility model is further described with reference to the following figures and detailed description:
as shown in figure 1, the dust removal sealing device for the spray gun of the desulfurization system of the metallurgical equipment comprises a flange plate 4, the flange plate 4 is fixed with the double-layer sleeve 3, the outer layer sleeve 7 of the double-layer sleeve 3 is larger than the inner layer sleeve 8, the outer layer sleeve 7 is connected with the upper part of the inner layer sleeve 8 through an upper sealing plate 9 (an annular sealing plate), the outer layer sleeve 7 is connected with the lower part of the inner layer sleeve 8 through a lower sealing plate 10, the annular space between the outer layer sleeve 7 and the inner layer sleeve 8 is a sealing cavity 11 formed by sealing the upper sealing plate 9 and the lower sealing plate 10, the lower sealing plate 10 is provided with 20 air outlet holes 6 with the size of phi 10 along the circumference, the outer wall of the outer sleeve 7 is uniformly provided with two air inlet pipes 5 communicated with the sealing cavity 11, the inner sleeve 8 is internally provided with a spray gun 1, the spray gun 1 is sleeved with a cover plate 2, and the cover plate 2 is in contact with the upper sealing plate 9.
High-pressure steam enters the sealing cavity 11 through the air inlet pipe 5 and then enters the inner-layer sleeve 8 through the air outlet hole 6 to form a steam sealing layer.
When the device works, a spray gun port of a spray gun 1 is inserted into a smoke hood and goes down to a desulphurization furnace for smelting, a cover plate 2 is in contact with an upper sealing plate 9 to form close fit, a steam electric valve is opened simultaneously, high-pressure steam enters a sealing cavity 11 through an air inlet pipe 5 and then enters an inner layer sleeve 8 through an air outlet hole 6 to form a steam sealing layer, and smoke, coal gas and flame emitted from an oxygen gun port are rapidly sealed and pressed back into a flue.
The flow of the steam electric valve is designed to be automatically adjusted and is interlocked with the lifting of the spray gun 1 to realize the opening and closing of the control steam.
Claims (5)
1. The utility model provides a metallurgical equipment desulfurization system spray gun dust removal sealing device which characterized in that: including ring flange (4), be fixed with double-deck sleeve (3) on ring flange (4), double-deck sleeve (3) are including outer sleeve (7), inlayer sleeve (8), and outer sleeve (7) are big than inlayer sleeve (8), sealed chamber (11) are constituteed through the closing plate to the annular space between outer sleeve (7) and inlayer sleeve (8), open along the circumference sealed chamber (11) lower part has a plurality of ventholes (6), evenly be equipped with a plurality of intake pipe (5) that link up with sealed chamber (11) on the outer wall of outer sleeve (7), are equipped with spray gun (1) in inlayer sleeve (8), are fixed with apron (2) on spray gun (1).
2. The metallurgical equipment desulfurization system lance dust removal sealing device of claim 1, characterized in that: the sealing cavity (11) is composed of an inner wall of the outer sleeve (7), an outer wall of the inner sleeve (8), an upper sealing plate (9) and a lower sealing plate (10), the outer sleeve (7) is connected with the upper portion of the inner sleeve (8) through the upper sealing plate (9), and the outer sleeve (7) is connected with the lower portion of the inner sleeve (8) through the lower sealing plate (10).
3. The metallurgical equipment desulfurization system lance dust removal sealing device of claim 2, characterized in that: and a plurality of air outlet holes (6) are formed in the lower sealing plate (10) along the circumferential direction.
4. The metallurgical equipment desulfurization system lance dust removal sealing device of claim 1, characterized in that: two air inlet pipes (5) communicated with the sealing cavity (11) are uniformly arranged on the outer wall of the outer sleeve (7).
5. The metallurgical equipment desulfurization system lance dust removal sealing device of claim 2, characterized in that: the cover plate (2) is in contact with an upper sealing plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122774807.9U CN216404443U (en) | 2021-11-13 | 2021-11-13 | Metallurgical equipment desulfurization system spray gun dust removal sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122774807.9U CN216404443U (en) | 2021-11-13 | 2021-11-13 | Metallurgical equipment desulfurization system spray gun dust removal sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN216404443U true CN216404443U (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122774807.9U Active CN216404443U (en) | 2021-11-13 | 2021-11-13 | Metallurgical equipment desulfurization system spray gun dust removal sealing device |
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| CN (1) | CN216404443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115261563A (en) * | 2022-07-14 | 2022-11-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Desulfurization atmoseal device |
-
2021
- 2021-11-13 CN CN202122774807.9U patent/CN216404443U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115261563A (en) * | 2022-07-14 | 2022-11-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Desulfurization atmoseal device |
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