CN2370011Y - Blast furnace gas bleeding valve - Google Patents
Blast furnace gas bleeding valve Download PDFInfo
- Publication number
- CN2370011Y CN2370011Y CN 99206091 CN99206091U CN2370011Y CN 2370011 Y CN2370011 Y CN 2370011Y CN 99206091 CN99206091 CN 99206091 CN 99206091 U CN99206091 U CN 99206091U CN 2370011 Y CN2370011 Y CN 2370011Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- blast furnace
- ring
- valve gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000000740 bleeding effect Effects 0.000 title abstract 3
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003034 coal gas Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Blast Furnaces (AREA)
Abstract
The utility model discloses a blast furnace gas bleeding valve, including valve gap and disk seat, be equipped with the sealing washer on the disk seat, the outer circumference of sealing washer is equipped with annular radial clamp plate, its characterized in that the sealing washer adopt plastic material, with the contact of valve gap sphere, the sealing washer top is equipped with axial clamp plate. The elastic contact structure of the valve cover and the sealing ring is adopted to replace the rigid contact mode between the valve cover and the valve seat, when the valve cover leans forward due to the deviation of the center of the counterweight from the center of the valve cover, the plastic spherical surface generates corresponding deformation to enable the valve cover to keep good contact with the sealing ring, the sealing performance of the blast furnace is improved, and meanwhile, the service life of the bleeding valve is prolonged.
Description
The utility model relates to the blast furnace discharge equipment, and specifically a kind of blast furnace gas diffuses valve.
When blast furnace gas diffused valve in order to the normal operation of assurance blast furnace, coal gas did not leak; During the blast furnace blowing-out, emission coal gas, the double as safety valve is used again simultaneously.Existing blast furnace diffuses valve and generally adopts the flip-shell structure, and valve gap contacts with the valve seat sphere, additional annular silicone rubber seal.For making valve gap and valve seat driving fit, adopt crank to hang counterweight, push down valve gap according to lever principle with pull bar.Because the center of counterweight gravity and valve gap center be not on same axis, make the eccentric force that has tendency counterweight direction on the valve gap, thereby valve gap is leaned forward, and said structure diffuse valve, because valve gap and valve seat directly are rigidly connected, therefore there is the gap, when blast furnace top pressure surpasses 80KPa, coal gas will be from gap location to external leakage, can make the decrease in efficiency of blast furnace like this, simultaneously, the high velocity air that leaks is carrying particulate state dust secretly and valve gap-contact surface of valve seat produces powerful friction, make and diffuse valve and very easily be worn, seriously reduce work-ing life.Though, can reduce wear to a certain extent, but still can not fundamentally address this problem at valve gap and valve seat sphere contact position pile-up welding hard alloy layer.
The purpose of this utility model is a kind of airtight performance will be provided good blast furnace gas diffuses valve.
The purpose of this utility model is achieved in that blast furnace gas diffuses valve, comprise valve gap and valve seat, valve seat is provided with sealing-ring, be provided with radially pressing plate of annular seal ring with outer week, it is characterized in that described sealing-ring adopts plastic material, contact with the valve gap sphere, the sealing-ring top is provided with axial pressing plate.
In sealing-ring and valve gap contact site, the sealing-ring outside surface is protruding sphere, and the valve gap internal surface is concave spherical surface, and described protruding sphere external diameter is slightly larger than the concave spherical surface internal diameter.
The utility model adopts valve gap and sealing-ring resilient contact structure, replace the rigidity way of contact between valve gap and the valve seat, when valve gap leans forward because of counterweight misalignment valve gap center produces, the plasticity sphere produces corresponding deformation makes valve gap and sealing-ring keep excellent contact, thereby reaches sealing effectiveness.Experiment shows, adopt the blast furnace of the technical program to diffuse valve, reach under the 160KPa state in furnace top pressure and not leak, and the furnace roof design pressure is 120KPa, therefore in normal operation, improved the sealing property of blast furnace widely, also avoided having prolonged the work-ing life of diffusing valve because gas leak makes valve body impaired.
In sealing-ring and valve gap contact site, the sealing-ring outside surface is protruding sphere, and described protruding sphere external diameter is slightly larger than the concave spherical surface internal diameter, can guarantee that the plasticity sphere all can make valve gap and sealing-ring keep well contacting when the deformation that produces in various degree.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the prior art constructions synoptic diagram.
Fig. 3 is that the utility model is installed in the structural representation on the blast furnace.
The axial pressing plate 3-of 1-valve gap 2-sealing-ring 4-radially pressing plate 5-valve seat 6-Wimet 7-goes up seam 9-blast furnace 10-crank 11-counterweight 12-support 13-oil cylinder 14-rotating shaft 15-pull bar under the seam 8-
With reference to Fig. 1, blast furnace gas diffuses valve, comprises valve gap and valve seat, and the valve seat top is provided with seam, and sealing-ring is placed on the seam, and the tight card in medial surface and bottom surface is gone up seam, is provided with radially pressing plate of annular seal ring with outer week, moves radially with the restriction sealing-ring; The sealing-ring top is provided with axial pressing plate, and axially pressing plate is provided with down seam, makes the end face and the tight obedient seam down of medial surface of sealing-ring, can limit sealing-ring to move axially; Axially pressing plate by screw retention on valve seat.Sealing-ring adopts silicon rubber, and its outside surface is protruding sphere, and valve gap directly contacts with sealing-ring, is concave spherical surface on the surface of contact site, and protruding sphere external diameter is than the big 20mm of concave spherical surface internal diameter.
With reference to Fig. 3, diffuse valve and be installed in high furnace roof, " " type lever that is made of pull bar and crank is fixed in the rotating shaft that is positioned at a top of the trellis, and the pull bar termination links to each other with the valve gap top, and crank end is provided with counterweight.During the blast furnace works better, under the counterweight effect, utilize the lever principle valve gap tightly to be pressed.Also be provided with oil cylinder on the support, the unlatching of hydrostatic control valve gap.
Claims (2)
1, blast furnace gas diffuses valve, comprises valve gap and valve seat, and valve seat is provided with sealing-ring, is provided with radially pressing plate of annular seal ring with outer week, it is characterized in that described sealing-ring adopts plastic material, contacts with the valve gap sphere, and the sealing-ring top is provided with axial pressing plate.
2, blast furnace gas as claimed in claim 1 diffuses valve, it is characterized in that: in sealing-ring and valve gap contact site, the sealing-ring outside surface is protruding sphere, and the valve gap internal surface is concave spherical surface, and described protruding sphere external diameter is slightly larger than the concave spherical surface internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206091 CN2370011Y (en) | 1999-03-23 | 1999-03-23 | Blast furnace gas bleeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206091 CN2370011Y (en) | 1999-03-23 | 1999-03-23 | Blast furnace gas bleeding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370011Y true CN2370011Y (en) | 2000-03-22 |
Family
ID=34000486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99206091 Expired - Lifetime CN2370011Y (en) | 1999-03-23 | 1999-03-23 | Blast furnace gas bleeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370011Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506206A (en) * | 2011-11-23 | 2012-06-20 | 石家庄阀门一厂股份有限公司 | Bleeding valve realizing sealing effect by adopting magnetic force and gravity of valve cap |
-
1999
- 1999-03-23 CN CN 99206091 patent/CN2370011Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506206A (en) * | 2011-11-23 | 2012-06-20 | 石家庄阀门一厂股份有限公司 | Bleeding valve realizing sealing effect by adopting magnetic force and gravity of valve cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |