CN211109139U - Explosion-proof manhole device suitable for converter gathering bin - Google Patents
Explosion-proof manhole device suitable for converter gathering bin Download PDFInfo
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- CN211109139U CN211109139U CN201921441376.0U CN201921441376U CN211109139U CN 211109139 U CN211109139 U CN 211109139U CN 201921441376 U CN201921441376 U CN 201921441376U CN 211109139 U CN211109139 U CN 211109139U
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- explosion
- converter
- manhole
- proof
- bin
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Abstract
The utility model relates to a manhole, specific explosion-proof manhole device suitable for converter gathering feed bin that says so, explosion-proof manhole device include converter gathering feed bin, manhole through-hole, explosion-proof pressure switch, manhole cover and discharge fume the chimney, be equipped with the manhole through-hole that runs through the bulkhead on the upper end bulkhead of converter gathering feed bin, the upper end of manhole through-hole is equipped with the manhole cover, the manhole cover is articulated through the short arm of pin and bolt, the long arm of bolt runs through the upper end bulkhead of converter gathering feed bin and is connected with the nut, be equipped with the discharge fume the chimney on the upper end face of converter gathering feed bin; the utility model relates to an explosion-proof manhole device suitable for converter feed bin that gathers, its reasonable in design, the design is novel, not only guarantees that the converter gathers the feed bin and has good leakproofness, avoids causing the excessive cigarette of high-rise platform, causes the pollution to the atmosphere, avoids again because the converter gathers the feed bin internal pressure too high, causes the converter to gather the problem of feed bin explosion.
Description
Technical Field
The utility model relates to a manhole, specific explosion-proof manhole device suitable for converter feed bin that gathers that says so.
Background
High-temperature flue gas generated in the smelting process of the converter can flow into the collecting bin along the feeding pipe, firstly, the high-temperature flue gas can reach 1400 ℃, and the high-temperature flue gas is usually accompanied by flame, so that auxiliary raw materials such as coke, anthracite and bituminous coal in the collecting bin can be ignited, and the explosion can be caused by the overlarge pressure in the collecting bin after the combustion; secondly, the coal gas in the high-temperature flue gas is gathered to reach the explosion limit, and the gathering bin is exploded.
Therefore, the converter gathering bin needs to be provided with a practical and reliable explosion-proof manhole, the explosion-proof manhole is required to have reliable sealing performance during normal production, the smoke generated in the smelting process is prevented from overflowing, the atmosphere is prevented from being polluted, and the high-temperature smoke can be borne. Can effectively let out when gathering feed bin internal pressure and rising to manhole design pressure explode, just let out and can not bring safe injury to near staff when exploding.
At present, the existing general material bin has an increased danger coefficient of explosion after the tightness of the general material bin is ensured, once the danger of explosion is ensured to be difficult to occur, the good tightness is difficult to ensure, the tightness is poor, and smoke is emitted from the general material bin to cause the smoke overflow of a high-rise platform; therefore, an explosion-proof manhole device is urgently needed, which can ensure the sealing performance and prevent explosion, and avoids potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve current total feed bin, can not guarantee the problem of the leakproofness and the security of total feed bin simultaneously, total feed bin has the danger coefficient that increases the emergence explosion after guaranteeing its leakproofness promptly, in case guaranteed difficult explosion danger, hardly guarantee again to have good leakproofness, can cause the leakproofness poor, the flue gas is followed the feed bin that gathers and is emitted, cause high-rise platform excessive smoke, cause the pollution scheduling problem to the atmosphere, the explosion-proof manhole device who is applicable to converter gathering feed bin that provides.
The technical scheme of the utility model as follows: an explosion-proof manhole device suitable for a converter collecting bin comprises the converter collecting bin, a manhole through hole, an explosion-proof pressure switch, a manhole cover and a smoke exhaust chimney, wherein the manhole through hole penetrating through the bin wall is formed in the bin wall at the upper end of the converter collecting bin;
the inner wall of the lower end face of the manhole cover is symmetrically provided with an explosion-proof joint, the manhole cover is fixedly connected with an explosion-proof chain through the explosion-proof joint, and the other end of the explosion-proof chain is fixedly connected with the inner upper wall of the converter gathering bin.
Further, the lower extreme inside wall of manhole cover be equipped with the sealing washer, do benefit to the sealed of converter feed bin that gathers, avoid revealing of smog.
Further, the maximum compressive strength of the nut is lower than the maximum compressive strength of the converter gathering bin, the explosion-proof joint, the explosion-proof chain, the manhole cover and the bolt, and the maximum compressive strength of the nut is lower than the maximum compressive strength of the converter gathering bin, the explosion-proof joint, the explosion-proof chain, the manhole cover and the bolt.
Furthermore, an upper smoke exhaust hole is formed in the upper end face of the smoke exhaust chimney, when the manhole cover is opened, smoke is exhausted from the upper smoke exhaust hole, explosion caused by overhigh pressure in a converter gathering bin is avoided, and potential safety hazards are avoided.
Furthermore, the chimney is in a trapezoidal structure, and the diameter length of the upper end face is smaller than that of the lower end face.
Further, the diameter length of the lower end face of the exhaust chimney is larger than that of the manhole cover, the diameter length of the upper end face of the exhaust chimney is smaller than that of the manhole cover, and the diameter of the manhole cover is larger than that of the upper end face of the exhaust chimney, so that when the manhole cover is opened, the manhole cover is prevented from flying out of the exhaust chimney to cause casualties.
Furthermore, the side wall of the smoke exhaust chimney is at least provided with 4 side smoke exhaust holes, smoke is exhausted from the side smoke exhaust holes when the manhole cover is opened, and pressure explosion in the converter collecting bin caused by overhigh pressure in the converter collecting bin is avoided.
Further, the side smoke exhaust holes are any one of square, trapezoid, circle, diamond, rectangle or triangle.
Furthermore, the bolt is any one of T-shaped or L-shaped, the short arm of the bolt, namely the T-shaped short arm or the L-shaped short arm, is hinged with the manhole cover, so that casualties caused by the fact that the bolt flies out of a chimney are avoided, meanwhile, the bolt can be reused through the design structure, and production cost is reduced.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The utility model has the advantages that:
the utility model relates to an explosion-proof manhole device suitable for converter feed bin that gathers, its reasonable in design, the design is novel, not only guarantees that the converter gathers the feed bin and has good leakproofness, avoids causing the excessive cigarette of high-rise platform, causes the pollution to the atmosphere, avoids again because the converter gathers the feed bin internal pressure too high, causes the converter to gather the problem of feed bin explosion.
Utilize the utility model provides an explosion-proof manhole device can effectually prevent that the converter from gathering the feed bin explosion, can avoid high-rise platform excessive smoke again, reduces environmental pollution, practices thrift manufacturing cost, reduces labor resources waste, prolongs the life of converter feed bin that gathers.
Therefore, compared with the prior art, the utility model has the advantages of very wide application prospect, substantial characteristics and progress, and obvious beneficial effect.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a cross-sectional view of the explosion-proof manhole device of the present invention during operation;
fig. 3 is a sectional view of the explosion-proof manhole device of the present invention after being opened;
FIG. 4 is a top view of a manhole cover;
FIG. 5 is a schematic view of the construction of the manhole cover;
in the figure, the device comprises a manhole cover 1, a manhole cover 2, a manhole through hole 3, a converter collecting bin 4, an upper smoke exhaust hole 5, a side smoke exhaust hole 6, a smoke exhaust chimney 7, a bolt 8, an explosion-proof chain 9, a pin 10, a nut 11, an explosion-proof joint 12 and a sealing ring.
Detailed Description
As shown in the figure, the anti-explosion manhole device suitable for the converter collecting bin comprises a converter collecting bin 3, a manhole through hole 2, an anti-explosion pressure switch 10, a manhole cover 1 and a smoke exhaust chimney 6, wherein the manhole through hole 2 penetrating through the bin wall is formed in the upper end bin wall of the converter collecting bin 3, the manhole cover 1 is arranged at the upper end of the manhole through hole 2, the manhole cover 1 is hinged with a short arm of a bolt 7 through a pin 9, a long arm of the bolt 7 penetrates through the upper end bin wall of the converter collecting bin 3 and is connected with the nut 10, and the smoke exhaust chimney 6 is arranged on the upper end face of the converter collecting bin 3;
the inner wall of the lower end face of the manhole cover 1 is symmetrically provided with the explosion-proof joints 11, the manhole cover 1 is fixedly connected with the explosion-proof chains 8 through the explosion-proof joints 11, the other end of each explosion-proof chain 8 is fixedly connected with the inner upper wall of the converter collecting bin 3, due to the action of the explosion-proof chains 8, the manhole cover 1 is prevented from flying out of the chimney 6, and meanwhile, the explosion-proof chains 8 only need to be actuated, so that the manhole cover 1 covers the manhole through hole 2, the manhole cover 1 is convenient to be replaced, the production cost is reduced, and the labor efficiency is improved.
Further, the inner side wall of the lower end of the manhole cover 1 is provided with a sealing ring 12, so that the sealing of the converter gathering bin 3 is facilitated, and the leakage of smoke is avoided.
Further, the maximum compressive strength of the nut 10 is lower than the maximum compressive strength of the converter collecting bin 3, the explosion-proof joint 11, the explosion-proof chain 8, the manhole cover 1 and the bolt 7, and the maximum compressive strength of the nut 10 is lower than the maximum compressive strength of the converter collecting bin 3, the explosion-proof joint 11, the explosion-proof chain 8, the manhole cover 1 and the bolt 7, when the pressure of the converter collecting bin 3 exceeds the maximum compressive strength of the nut 10, the nut 10 bursts, the bolt 7 is loosened, so that the manhole cover 1 is opened, explosion caused by overhigh pressure in the converter collecting bin 3 is avoided, and potential safety hazards are avoided.
Furthermore, an upper smoke exhaust hole 4 is arranged on the upper end face of the smoke exhaust chimney 6, when the manhole cover 1 is opened, smoke is exhausted from the upper smoke exhaust hole 4, explosion caused by overhigh pressure in the converter collecting bin 3 is avoided, and potential safety hazards are avoided.
Further, the exhaust chimney 6 is in a trapezoidal structure, and the diameter length of the upper end face is smaller than that of the lower end face.
Further, the diameter length of the lower end face of the exhaust chimney 6 is larger than that of the manhole cover 1, the diameter length of the upper end face of the exhaust chimney 6 is smaller than that of the manhole cover 1, and as the diameter of the manhole cover 1 is larger than that of the upper end face of the exhaust chimney 6, when the manhole cover 1 is opened, the manhole cover 1 is prevented from flying out of the exhaust chimney 6 to cause casualties.
Furthermore, the side wall of the smoke exhaust chimney 6 is at least provided with 4 side smoke exhaust holes 5, smoke is exhausted from the side smoke exhaust holes 5 when the manhole cover 1 is opened, and pressure explosion in the converter collecting bin 3 caused by overhigh pressure in the converter collecting bin 3 is avoided.
Further, the side smoke exhaust holes 5 are any one of square, trapezoid, circle, diamond, rectangle or triangle.
Further, the bolt 7 is any one of T-shaped or L-shaped, a short arm of the bolt 7, namely the T-shaped short arm or the L-shaped short arm, is hinged with the manhole cover 1, so that casualties caused by the fact that the bolt 7 flies out of the chimney 6 are avoided, meanwhile, the bolt can be reused through the design structure, and production cost is reduced.
The utility model discloses a theory of operation: when the converter collecting bin 3 works, the temperature in the converter collecting bin 3 is too high, the smoke is too much, the pressure is increased, when the pressure of the converter collecting bin 3 exceeds the maximum compression strength of the nut 10, the nut 10 bursts, the bolt 7 is loosened, the manhole cover 1 is opened, the smoke passes through the manhole through hole 2, and then the smoke is discharged in sequence by utilizing the side smoke discharging hole 5 and the upper smoke discharging hole 4 which are arranged on the smoke discharging chimney 6, so that potential safety hazards caused by explosion due to too high pressure in the converter collecting bin 3 are avoided;
when the manhole cover 1 is opened, the manhole cover 1 is prevented from flying out of the chimney 6 due to the action of the explosion-proof chain 8, so that potential safety hazards are avoided; when the smoke in the converter collecting bin 3 is discharged completely, and the pressure in the converter collecting bin 3 is equal to the atmospheric pressure, the anti-explosion chain 8 is pulled close, so that the manhole cover 1 covers the manhole through hole 2 in the converter collecting bin 3 again, and the bolt 7 is fixed by the nut, so that the converter collecting bin 3 becomes a closed space again.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only exemplary of the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an explosion-proof manhole device suitable for converter feed bin that gathers which characterized in that: the anti-explosion manhole device comprises a converter collecting bin (3), a manhole through hole (2), an anti-explosion pressure switch (10), a manhole cover (1) and a smoke exhaust chimney (6), wherein the manhole through hole (2) penetrating through the bin wall is formed in the bin wall at the upper end of the converter collecting bin (3), the manhole cover (1) is arranged at the upper end of the manhole through hole (2), the manhole cover (1) is hinged to a short arm of a bolt (7) through a pin (9), a long arm of the bolt (7) penetrates through the bin wall at the upper end of the converter collecting bin (3) and is connected with a nut, and the smoke exhaust chimney (6) is arranged on the upper end face of the converter collecting bin (3);
the inner wall of the lower end face of the manhole cover (1) is symmetrically provided with an explosion-proof joint (11), the manhole cover (1) is fixedly connected with an explosion-proof chain (8) through the explosion-proof joint (11), and the other end of the explosion-proof chain (8) is fixedly connected with the inner upper wall of the converter collecting bin (3).
2. The explosion-proof manhole device suitable for the converter collecting bin is characterized in that: and a sealing ring (12) is arranged on the inner side wall of the lower end of the manhole cover (1).
3. The explosion-proof manhole device suitable for the converter collecting bin is characterized in that: the maximum compressive strength of the nut is lower than that of the converter collecting bin (3), the explosion-proof joint (11), the explosion-proof chain (8), the manhole cover (1) and the bolt (7).
4. The explosion-proof manhole device suitable for the converter collecting bin is characterized in that: an upper exhaust hole (4) is arranged on the upper end surface of the exhaust chimney (6).
5. The explosion-proof manhole device suitable for the converter collecting bin is characterized in that: the chimney (6) is in a trapezoidal structure, and the diameter length of the upper end face is smaller than that of the lower end face.
6. The explosion-proof manhole device suitable for the converter collecting bin is characterized in that: the diameter length of the lower end face of the smoke exhaust chimney (6) is larger than that of the manhole cover (1), and the diameter length of the upper end face of the smoke exhaust chimney (6) is smaller than that of the manhole cover (1).
7. The explosion-proof manhole device suitable for the converter collecting bin is characterized in that: the side wall of the exhaust chimney (6) is at least provided with 4 side exhaust holes (5).
8. The explosion-proof manhole device suitable for the converter collecting bin is characterized in that: the side smoke exhaust holes (5) are any one of square, trapezoid, circle, diamond, rectangle or triangle.
9. The explosion-proof manhole device suitable for the converter summary bin is characterized in that the bolt (7) is T-shaped or L-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441376.0U CN211109139U (en) | 2019-08-30 | 2019-08-30 | Explosion-proof manhole device suitable for converter gathering bin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921441376.0U CN211109139U (en) | 2019-08-30 | 2019-08-30 | Explosion-proof manhole device suitable for converter gathering bin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211109139U true CN211109139U (en) | 2020-07-28 |
Family
ID=71707215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921441376.0U Expired - Fee Related CN211109139U (en) | 2019-08-30 | 2019-08-30 | Explosion-proof manhole device suitable for converter gathering bin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211109139U (en) |
-
2019
- 2019-08-30 CN CN201921441376.0U patent/CN211109139U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20210830 |