CN205689774U - A kind of online cleaning type butterfly valve for blast furnace gas pipeline - Google Patents
A kind of online cleaning type butterfly valve for blast furnace gas pipeline Download PDFInfo
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- CN205689774U CN205689774U CN201620616356.2U CN201620616356U CN205689774U CN 205689774 U CN205689774 U CN 205689774U CN 201620616356 U CN201620616356 U CN 201620616356U CN 205689774 U CN205689774 U CN 205689774U
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- valve
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- blast furnace
- wind pipe
- furnace gas
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Abstract
The utility model discloses a kind of online cleaning type butterfly valve for blast furnace gas pipeline, including valve plate, valve seat, valve body and valve rod, valve body two side flange is all connected with blast furnace gas pipeline, the latter half inwall of valve body inlet end is provided with arc-shape wind pipe, arc-shape wind pipe is placed at the contact surface of valve plate and valve seat, the curved surfaces of arc-shape wind pipe is provided with air holes, the two ends of arc-shape wind pipe are closed by end cap, the middle part of arc-shape wind pipe is provided with straight airduct, straight airduct connects with arc-shape wind pipe, straight airduct is through the sidewall of valve body, and it is connected with the source nitrogen being in outside valve body through connecting tube, pressure-regulating valve it is provided with between source nitrogen and connecting tube.Deposition dust is blown afloat by this utility model Main Basis high pressure nitrogen, and in pipeline under the mobilization of blast furnace gas, dust is sucked away, it is achieved in blast furnace gas pipeline, the deposition high efficiency of dust, automatization, specific aim and low cost are removed online.
Description
Technical field
This utility model belongs to blast furnace gas pipeline dust clearance technique field, especially a kind of for blast furnace gas pipeline
On, pipeline inner sealing surface deposition dust is carried out online cleaning type butterfly valve.
Background technology
In ironmaking processes, the air through preheating is blown into from the air port being positioned at bottom house, and the oxygen in air is at high temperature
Coke gasification reaction down and in blast furnace generates CO, in order to remove the oxygen in iron ore and ferrum restored, and reacted gas
It is referred to as blast furnace gas.The composition of blast furnace gas is mainly CO2, CO and N2, and containing steam, dust (main component Fe2O3) etc.
Material.The ventilation of blast furnace gas pipeline and pressure need to regulate with metal sealing valve, and usually three-eccentric-butterfly-valve, with really
Protect the maintenance of the normal production status of blast furnace.Dust in blast furnace gas is easily at pipeline butterfly valve seat sealing surface bottom deposit, at water
It is easily generated, under the effect of steam, the phenomenon that hardens, causes the jam of butterfly valve plate, cause the forfeiture of its pressure adjusting function, serious shadow
Ring the carrying out that blast furnace ironmaking is movable.
Present stage, for the removing of blast furnace gas pipeline butterfly valve seat sealing surface bottom deposit dust, the most traditional side
Method mainly has scraper plate scraping, artificial rapping, increases the blast furnace periodical repair frequency etc., has that automaticity is low, inefficiency, manpower consumption
Fei Gao, affect the shortcomings such as normal production procedure；Relatively advanced method mainly uses high gravity dedusting technology, but has dedusting
Complex procedures, cost are high, easily cause the problems such as blast furnace gas pipeline corrosion.Utility model CN 203768385 U discloses one
Blast furnace gas pipeline dust blow device, with nitrogen as working media, arranges valve at nitrogen flow in pipes, controls nitrogen
Inject；This device is capable of the efficient purging to blast furnace gas pipeline deposition dust, but this device does not seals with butterfly valve seat
Deposition dust bottom face is for cleaning object, it is impossible to the specific aim realizing this area deposition dust is removed.
Above-mentioned existing blast furnace gas pipeline deposition dust clearance technique and device, all can not realize butterfly valve seat sealing surface
The high efficiency of bottom deposit dust, automatization, specific aim and low cost are removed.Therefore, it is necessary to develop a kind of novel butterfly valve,
Blast furnace gas pipeline butterfly valve seat sealing surface deposition dust can be carried out on-line automatic removing, solve prior art and device is deposited
Problem.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of online cleaning type butterfly valve for blast furnace gas pipeline,
This butterfly valve deposits the high efficiency of dust, automatization, specific aim and low cost in being capable of blast furnace gas pipeline and removes online.
For solving above-mentioned technical problem, technical solution adopted in the utility model is: a kind of for blast furnace gas pipeline
Online cleaning type butterfly valve, including valve plate, valve seat, valve body and valve rod, described valve body two side flange is all and blast furnace gas pipeline
Connect, it is characterised in that the latter half inwall of described valve body inlet end is provided with arc-shape wind pipe, and described arc-shape wind pipe is placed in
At the contact surface of valve plate and valve seat, the curved surfaces of arc-shape wind pipe is provided with air holes, and the two ends of arc-shape wind pipe are closed by end cap,
The middle part of arc-shape wind pipe is provided with straight airduct, and straight airduct connects with arc-shape wind pipe, and described straight airduct passes the sidewall of valve body, and
It is connected with the source nitrogen being in outside valve body through connecting tube, between source nitrogen and connecting tube, is provided with pressure-regulating valve.
Being further qualified said structure, described arc-shape wind pipe is stainless steel, the radius of curvature of arc-shape wind pipe
Being slightly less than the outer radii of valve plate, the radian of arc-shape wind pipe is 100-150 °, and arc-shape wind pipe is according to symmetrical point of perpendicular
Cloth.
Being further qualified said structure, described air holes includes plural radial direction air holes and axial air holes, footpath
The most equidistantly being distributed to air holes and axial air holes, described radial direction air holes is located at the medial surface that arc-shape wind pipe curvature is less, and footpath
Point to the axle center of valve body to air holes, described axial air holes is provided with on the side near valve plate, and axially air holes point to valve seat with
The intersection of valve body.
Said structure is further qualified, described radial direction air holes and axial air holes interlaced arrangement.
Being further qualified said structure, described pressure-regulating valve is provided with the regulation for regulating the nitrogen amount of feeding
Handwheel, coordinates for rotary between described adjusting handle and pressure-regulating valve, is provided with pressure in the exit of pressure-regulating valve
Table.
Said structure is further qualified, is metal sealing between described straight airduct and body wall.
Use and have the beneficial effects that produced by technique scheme: this utility model is by arranging arc inside butterfly valve
Airduct, arc-shape wind pipe is connected with outside elevated pressure nitrogen source of the gas, utilizes high pressure nitrogen to be blown by the deposition dust accumulating in body base
Rising, in pipeline under the mobilization of blast furnace gas, dust is sucked away, thus reaches the effect that dust is removed automatically, this removing
Device can solve the problem that the problems such as the cost consumption that existing dust clearance technique exists is high, dust-removing process is complicated, it is achieved butterfly valve seat
The high efficiency of sealing surface bottom deposit dust, automatization, specific aim and low cost are removed；It addition, the removing in this utility model
Device can be implemented in line and removes dust, only need to utilize the regulation handle of outside to regulate nitrogen pressure, when opening valve
Can realize deposition dust purging, it is not necessary to pipeline or equipment downtime, it is to avoid affect normal production procedure.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is population structure schematic diagram of the present utility model；
Fig. 2 is the schematic diagram of arc-shape wind pipe structure in this utility model；
In figure: 1, arc-shape wind pipe；1-1, radially air holes；1-2, straight airduct；1-3, end cap, 1-4, axial air holes；2, connect
Pipe；3, pressure-regulating valve；3-1, adjusting handle；4, source nitrogen；5, valve seat；6, valve plate；7, valve body；8, valve rod；9, blast furnace gas
Pipeline, 10, Pressure gauge.
Detailed description of the invention
This utility model is specifically related to a kind of online cleaning type butterfly valve for blast furnace gas pipeline, as shown in Figure 1, is somebody's turn to do
Butterfly valve specifically includes valve plate 6, valve seat 5, valve body 7, valve rod 8 and the automatic ash removing device on butterfly valve, and 7 liang of side flanges of valve body are equal
Being connected with blast furnace gas pipeline 9, form the connector of butterfly valve and blast furnace gas pipeline 9, blast furnace gas can be carried out by butterfly valve
Control.Automatic ash removing device of the present utility model includes arc-shape wind pipe 1, source nitrogen 4 and pressure-regulating valve 2, due under butterfly valve
Half part easily deposits dust, therefore arc-shape wind pipe 1 is arranged at the latter half of valve body 7 inlet end, and is fixed on inwall,
Arc-shape wind pipe 1 is placed at the contact surface of valve plate 6 and valve seat 5, i.e. butterfly valve seat sealing surface.In order to realize sealing towards butterfly valve seat
Blowing out high pressure nitrogen at face, be provided with air holes on the curved surfaces of arc-shape wind pipe 1, the two ends of arc-shape wind pipe 1 are sealed by end cap 1-3
Closing, the middle part of arc-shape wind pipe 1 is provided with straight airduct 1-2, straight airduct 1-2 and connects with arc-shape wind pipe 1, and straight airduct 1-2 is through valve body 7
Sidewall, and be connected with the source nitrogen 4 being in outside valve body 7, between source nitrogen 4 and straight airduct 1-2, it is provided with pressure-regulating valve
3。
In said structure, supply high pressure nitrogen by source nitrogen 4 for arc-shape wind pipe 1, owing to arranging the position of arc-shape wind pipe
Exactly the easy build-up areas of dust, in the case of valve plate 6 is opened, so utilizes the elevated pressure nitrogen that the air port of arc-shape wind pipe blows out
Gas, blows afloat deposition dust, and in pipeline under the mobilization of blast furnace gas, dust is sucked away, thus reaches what dust was removed
Effect.It addition, the nitrogen pressure regulation in this utility model is placed in valve body 7 outside, manually regulated by pressure-regulating valve 3,
In so can not affecting blast furnace gas pipeline properly functioning, it is possible to achieve online ash removal, it is to avoid affect normal production procedure, with
Time reduce butterfly valve fault rate.
Arc-shape wind pipe 1 in this utility model is stainless steel, and the radius of curvature of arc-shape wind pipe 1 is slightly less than valve plate 6
Outer radii, the radian of arc-shape wind pipe 1 is 100-150 °, and arc-shape wind pipe 1 is according to the symmetrical distribution of perpendicular.Stainless steel
The arc-shape wind pipe 1 of matter has characteristic high temperature resistant, corrosion resistant, in blast furnace gas, can improve service life.It addition, arc
The radian of shape airduct 1 sets, and is according to dust stratification aggregation zone in butterfly valve, blast furnace gas near butterfly valve time, there is becoming of sedimentation
Gesture, therefore the latter half at valve body 7 arranges arc-shape wind pipe, and its radian controls in the range of 100-150 °, and lateral symmetry is distributed,
Can blow afloat under the effect of high pressure nitrogen preferably to because of the dust stratification of gravitational settling, it is to avoid sedimentation, thus realize the mesh of deashing
's.
In order to realize that the dust stratification at butterfly valve seal face is cleared up, it is to avoid affect valve opening and closedown, to air holes
Structure is designed, and as shown in Figure 2, air holes includes plural radial direction air holes 1-1 and axial air holes 1-4, and footpath is aweather
Hole 1-1 and axial air holes 1-4 are the most equidistantly distributed, and radially air holes 1-1 is located at the medial surface that arc-shape wind pipe 1 curvature is less, and footpath
Point to the axle center of butterfly valve to air holes 1-1, axial air holes 1-4 is provided with on the side of valve plate 6, and axially air holes 1-4 points to valve
Seat 5 and the intersection of valve body 7.Utilize radially air holes 1-1 that the dust stratification because of gravitational settling is blown afloat, utilize axial air holes 1-4
Dust stratification at sealing surface is purged, so lays air holes at two key positions, avoid dust stratification sedimentation simultaneously and amass
Stuck to valve of ash.
Can also be clearly visible that in fig 2, radially air holes 1-1 and axial air holes 1-4 interlaced arrangement, i.e. in two footpaths
One axial air holes 1-4 is set between air holes 1-1, is arranged so as to the structure being to consider arc-shape wind pipe 1, and to be prone to add
Work.
In fig. 1, pressure-regulating valve 3 is provided with the adjusting handle 3-1 for regulating the nitrogen amount of feeding, adjusting handle
Coordinate for rotary between 3-1 with pressure-regulating valve 3, be provided with Pressure gauge 10 in the exit of pressure-regulating valve 3.Pressure is utilized to adjust
Joint valve 3 controls pressure size and the opening and closing of dedusting nitrogen, arranges handwheel 3-1, for the feeding of accuracy controlling pressure-regulating valve 3
Amount, the most accurately controls the size of dedusting nitrogen pressure.
Owing to the temperature of blast furnace gas is higher, the sealing pair between straight airduct 1-2 and valve body 8 sidewall can not use commonly
Rubber seal, therefore selects metal sealing, consolidates between straight airduct 1-2 and valve body 8, this avoid the blast furnace gas of inside not
Reveal, ensure service life simultaneously.
Below in conjunction with the accompanying drawings, as a example by 600mm three-eccentric-butterfly-valve, work process of the present utility model is elaborated.
As shown in Figure 1 and Figure 2, core component of the present utility model is arc-shape wind pipe 1, is set to stainless steel, its curvature
Radius is 290mm, and radian is 120 °, and internal-and external diameter is respectively 20 mm and 26 mm；A diameter of 8mm of air holes 1-1, is spaced
15 °, it is uniformly distributed in the radial direction circular arc plane of symmetry both sides of arc-shape wind pipe 1, has 8；The internal-and external diameter of straight airduct 1-2 is respectively 19
Mm and 25 mm, is distributed in inside and outside blast furnace gas pipeline 9, connects arc-shape wind pipe 1 and connecting tube 2；Arc-shape wind pipe end cap 1-
3 two ends being positioned at arc-shape wind pipe 1, play the effect at airtight arc-shape wind pipe 1 two ends.Arc-shape wind pipe 1 and straight airduct 1-2 are by welding
Mode be fixed on butterfly valve upstream, the i.e. left side of butterfly valve plate 6, between the inside of blast furnace gas pipeline 9, and sealing surface of seat 5
Away from for 100 mm, wherein straight airduct 1-2 is through inside and outside blast furnace gas pipeline 9.
The blast furnace gas produced in ironmaking processes is emitted into blast furnace gas pipeline 9 by Top of BF, flows through butterfly valve plate 6
Time, the dust mixed is hindered, progressively falls to the bottom in butterfly valve seal face 5.As removed not in time, in the effect of steam
Under, easily produce and harden, the opening and closing campaign of blocking butterfly valve plate 6, cause the inefficacy of butterfly valve pressure adjusting function.According to blast furnace coal
Blast furnace gas pressure 0.25Mpa in feed channel 9, and the settlement law that dust is bottom butterfly valve plate sealing surface 5, pass through pressure
The outlet pressure of source nitrogen 4 is adjusted to 0.25～0.30MPa, every set time (3 hours), inflated with nitrogen 60S by regulation valve 3.
Under the percussion of high pressure nitrogen, it is deposited on the dust bottom butterfly valve plate sealing surface 5 and is broken up, and at the stream of blast furnace gas
Under action, through butterfly valve, arrive butterfly valve downstream, thus realize blast furnace gas pipeline butterfly valve seat sealing surface bottom deposit dust
Automatically the purpose removed.
Claims (6)
1. for an online cleaning type butterfly valve for blast furnace gas pipeline, including valve plate (6), valve seat (5), valve body (7) and valve rod
(8), described valve body (7) two side flange is all connected with blast furnace gas pipeline (9), it is characterised in that described valve body (7) air inlet
The latter half inwall of end is provided with arc-shape wind pipe (1), and described arc-shape wind pipe (1) is placed in valve plate (6) and the contact surface of valve seat (5)
Place, the curved surfaces of arc-shape wind pipe (1) is provided with air holes, and the two ends of arc-shape wind pipe (1) are closed by end cap (1-3), arc wind
The middle part of pipe (1) is provided with straight airduct (1-2), and straight airduct (1-2) connects with arc-shape wind pipe (1), and described straight airduct (1-2) passes
The sidewall of valve body (7), and be connected with the source nitrogen (4) being in outside valve body (7) through connecting tube (2), in source nitrogen (4) and company
It is provided with pressure-regulating valve (3) between adapter (2).
A kind of online cleaning type butterfly valve for blast furnace gas pipeline the most according to claim 1, it is characterised in that described
Arc-shape wind pipe (1) be stainless steel, the radius of curvature of arc-shape wind pipe (1) is slightly less than the outer radii of valve plate (6), arc wind
The radian of pipe (1) is 100-150 °, and arc-shape wind pipe (1) is according to the symmetrical distribution of perpendicular.
A kind of online cleaning type butterfly valve for blast furnace gas pipeline the most according to claim 2, it is characterised in that described
Air holes include plural radial direction air holes (1-1) and axial air holes (1-4), radially air holes (1-1) and axial air holes (1-4)
The most equidistantly being distributed, described radial direction air holes (1-1) is located at the medial surface that arc-shape wind pipe (1) curvature is less, and radially air holes (1-
1) pointing to the axle center of valve body (7), described axial air holes (1-4) is provided with on the side of valve plate (6), and axially air holes (1-
4) intersection of valve seat (5) and valve body (7) is pointed to.
A kind of online cleaning type butterfly valve for blast furnace gas pipeline the most according to claim 3, it is characterised in that described
Radial direction air holes (1-1) and axial air holes (1-4) interlaced arrangement.
A kind of online cleaning type butterfly valve for blast furnace gas pipeline the most according to claim 1, it is characterised in that described
Pressure-regulating valve (3) be provided with the adjusting handle (3-1) for regulating the nitrogen amount of feeding, described adjusting handle (3-1) with
It is rotary cooperation between pressure-regulating valve (3), is provided with Pressure gauge (10) in the exit of pressure-regulating valve (3).
A kind of online cleaning type butterfly valve for blast furnace gas pipeline the most according to claim 1, it is characterised in that described
Straight airduct (1-2) and valve body (8) sidewall between be metal sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620616356.2U CN205689774U (en) | 2016-06-22 | 2016-06-22 | A kind of online cleaning type butterfly valve for blast furnace gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620616356.2U CN205689774U (en) | 2016-06-22 | 2016-06-22 | A kind of online cleaning type butterfly valve for blast furnace gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205689774U true CN205689774U (en) | 2016-11-16 |
Family
ID=57415690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620616356.2U Expired - Fee Related CN205689774U (en) | 2016-06-22 | 2016-06-22 | A kind of online cleaning type butterfly valve for blast furnace gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205689774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889525A (en) * | 2016-06-22 | 2016-08-24 | 河北科技大学 | Online dust removal type butterfly valve for blast furnace gas pipeline |
| CN110274087A (en) * | 2019-07-17 | 2019-09-24 | 长沙如洋环保科技有限公司 | A kind of valve |
-
2016
- 2016-06-22 CN CN201620616356.2U patent/CN205689774U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889525A (en) * | 2016-06-22 | 2016-08-24 | 河北科技大学 | Online dust removal type butterfly valve for blast furnace gas pipeline |
| CN110274087A (en) * | 2019-07-17 | 2019-09-24 | 长沙如洋环保科技有限公司 | A kind of valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161116 Termination date: 20170622 |