CN202925043U - Composite sealing device for mechanical stock rod winding drum box body for blast furnace - Google Patents
Composite sealing device for mechanical stock rod winding drum box body for blast furnace Download PDFInfo
- Publication number
- CN202925043U CN202925043U CN 201220539968 CN201220539968U CN202925043U CN 202925043 U CN202925043 U CN 202925043U CN 201220539968 CN201220539968 CN 201220539968 CN 201220539968 U CN201220539968 U CN 201220539968U CN 202925043 U CN202925043 U CN 202925043U
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- China
- Prior art keywords
- blast furnace
- reel
- casing
- packing
- winding drum
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000004804 winding Methods 0.000 title claims description 24
- 238000012856 packing Methods 0.000 claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000003860 storage Methods 0.000 claims description 27
- 210000004907 gland Anatomy 0.000 claims description 22
- 230000001050 lubricating effect Effects 0.000 claims description 10
- 210000000515 tooth Anatomy 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a composite sealing device of mechanical stock rod reel box for blast furnace, composite sealing device adopts double seal, and the first order is sealed by the labyrinth seal that the tip internal surface of reel box and the surface of reel transmission shaft are constituteed, and the second grade is sealed to be located the flexible packing dynamic seal between reel box and the reel transmission shaft. The utility model discloses simple structure, easy installation, dependable performance, easy maintenance, and can improve the sealed effect of reel box, extension sealing device's life prevents revealing of blast furnace gas, guarantees the safety in production of blast furnace.
Description
Technical field
The utility model belongs to technical field of blast furnace process, particularly relevant for the composite seal device of a kind of blast furnace with mechanical winding drum for trial rod casing.
Background technology
In blast furnace production process, charge level descends along with time lapse, in order to survey the charge level lowering speed and to send the instruction that starts charging procedure and trial rod device is set.Because the inside of winding drum for trial rod casing directly communicates with blast furnace roof inside, cause the reel box house to be full of the coal gas of high temperature (150～500 ℃) high pressure (the highest approximately 0.3MPa) and the blending agent of dust, and the bobbin case external body is the Working environment of blast furnace platform, for fear of the leakage of coal gas and dust, the tightness system of reel casing is absolutely necessary.
Existing tightness system design mostly is perfect not, be difficult to adapt to for a long time the gas dust environment of High Temperature High Pressure, tightness system easily damages, and sealing effectiveness is relatively poor, cause blast furnace gas to be revealed from the junction of reel tank ends and reel transmission shaft, bring hidden danger for the safety in production of blast furnace.
The utility model content
The purpose of this utility model is, a kind of simple in structure, easy installation, dependable performance, blast furnace easy to maintenance composite seal device with mechanical winding drum for trial rod casing is provided, it can improve the sealing effectiveness of reel casing, extend the work-ing life of tightness system, prevent the leakage of blast furnace gas, guarantee the safety in production of blast furnace.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
A kind of blast furnace is with the composite seal device of mechanical winding drum for trial rod casing, described composite seal device adopts double seal, it is wadding dynamic seal between reel casing and reel transmission shaft that the labyrinth seal that first step sealing is comprised of the outside surface of the end internal surface of reel casing and reel transmission shaft, the second stage seal.
Blast furnace as above is with the composite seal device of mechanical winding drum for trial rod casing, the described first step be sealed into the reel casing internal surface, with the set a plurality of rectangular teeths in the junction of described reel transmission shaft, the outside surface of described rectangular teeth and reel transmission shaft forms expansion chamber, to form labyrinth seal structure.
Blast furnace as above is with the composite seal device of mechanical winding drum for trial rod casing, the internal surface of described reel casing is provided with storage tank, one end opening of storage tank, the other end sealing of storage tank, one end of storage tank sealing is positioned at a side of described first step sealing, the sealing of the described second stage comprises the soft packing seal parts, the soft packing seal parts are arranged in storage tank, and an end contact of soft packing seal parts is at an end place of the sealing of storage tank, the other end connects gland, and gland is connected on described reel casing by fastening piece.
Blast furnace as above is with the composite seal device of mechanical winding drum for trial rod casing, described soft packing seal parts comprise a plurality of packings, packing is made by the soft graphite braided packing, a plurality of packings are arranged in described storage tank, and be glanded and be installed with, centre at a plurality of packings is provided with oiling ring, is provided with lubricating cup in the outside of described reel casing, and oiling ring and lubricating cup are connected by oil hole.
Blast furnace as above is with the composite seal device of mechanical winding drum for trial rod casing, described gland has ring body, the ring body ring is located at the outside of described reel transmission shaft, protrude out annular plush copper from an end of ring body, one end of annular plush copper inserts described storage tank and is connected to the other end of described soft packing seal parts, and ring body is connected by described fastening piece with described reel casing.
Blast furnace as above is work in coordination trapezoidal with the composite seal device of mechanical winding drum for trial rod casing, the cross section between described packing and oiling ring, and described gland is near the taper shape that matches with packing that is shaped as of an end of described packing.
Blast furnace as above is provided with groove with the composite seal device of mechanical winding drum for trial rod casing, position corresponding with described oiling ring on described storage tank inwall, and the width of described groove is greater than the width of oiling ring.
Blast furnace as above is studs with the composite seal device of mechanical winding drum for trial rod casing, described fastening piece.
Blast furnace of the present utility model with characteristics and the advantage of the composite seal device of mechanical winding drum for trial rod casing is:
1, it adopts double seal, and the first step is sealed into labyrinth seal, and the second stage is sealed into the wadding dynamic seal, thereby can improve the sealing effectiveness of reel casing, extends the work-ing life of tightness system, prevents the leakage of blast furnace gas, guarantees the safety in production of blast furnace.
2, its simple in structure, easy installation, dependable performance, easy to maintenance.
3, adopt labyrinth seal, can form very little labyrinth gap between reel transmission shaft and reel casing, can effectively isolate the dust in blast furnace gas, the packing in the packing seal of protection next stage reduces the wearing and tearing of packing.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is blast furnace with the structural representation of mechanical stock rod;
Fig. 2 is the blast furnace of the utility model embodiment with the structural representation of the composite seal device of mechanical winding drum for trial rod casing.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, the blast furnace that the utility model embodiment proposes is with the composite seal device 1 of mechanical winding drum for trial rod casing, described composite seal device 1 adopts double seal, it is wadding dynamic seal between reel casing 2 and reel transmission shaft 3 that the labyrinth seal that first step sealing is comprised of the outside surface of the end internal surface of reel casing 2 and reel transmission shaft 3, the second stage seal.
The composite seal device 1 of the present embodiment is positioned at the two ends of reel casing 2 and the junction of reel transmission shaft 3, and be positioned at the inboard of bearing support Z, reel casing 2 inside have been full of the coal gas of High Temperature High Pressure and the blending agent of dust, and reel casing 2 outsides are Working environments of blast furnace platform.The present embodiment adopts double seal can effectively improve the sealing property of reel casing 2, avoids the leakage of blast furnace gas and dust, guarantees the safety in production of blast furnace.Wherein, the labyrinth seal of first step sealing; it is to have utilized the labyrinth effect to reach sealing effectiveness; it is the function that fluid produces resistance and its flow is reduced by the labyrinth; adopt labyrinth seal; can form very little labyrinth gap between reel transmission shaft 3 and reel casing 2, can effectively isolate the dust in blast furnace gas, can also protect the wadding dynamic seal in the sealing of the second stage.The wadding dynamic seal is adopted in second stage sealing, with the gap that obstruction spills, reaches the purpose of further sealing.
The present embodiment is compared with existing tightness system, simple in structure, easy installation that the present embodiment has, dependable performance, the advantage such as easy to maintenance.
According to an embodiment of the present utility model, the internal surface that the described first step is sealed into reel casing 2 is provided with a plurality of rectangular teeths 4, rectangular teeth 4 is positioned at the junction of reel casing 2 and reel transmission shaft 3, described rectangular teeth 4 forms expansion chamber with the outside surface of reel transmission shaft 3, to form labyrinth seal structure.In the present embodiment, the expansion chamber that blast furnace gas forms through labyrinth gap very little between rectangular teeth 4 and reel transmission shaft 3, can form whirlpool in expansion chamber, whirlpool in expansion chamber is also unstable, through repeatedly producing larger energy waste after throttling, can play the effect that reduces pressure and flow to blast furnace gas, thereby play the effect that reduces gas leakage.
The internal surface of described reel casing 2 is provided with storage tank 2a, the end opening of storage tank 2a, the other end sealing of storage tank 2a, one end of storage tank 2a sealing is positioned at a side of first step sealing, the sealing of the described second stage comprises soft packing seal parts 5, and soft packing seal parts 5 are arranged in storage tank 2a, and an end contact of soft packing seal parts 5 is at an end place of the sealing of storage tank 2a, the other end connects gland 6, and gland 6 is connected on reel casing 2 by fastening piece 7.
The described soft packing seal parts of described soft packing seal parts 5 comprise a plurality of packing 5a, packing 5a is made by the soft graphite braided packing, a plurality of packing 5a are arranged in described storage tank 2a, and be glanded 6 and be installed with, be provided with oiling ring 5b in the centre of a plurality of packing 5a, be provided with lubricating cup 5c in the outside of described reel casing 2, oiling ring 5b and lubricating cup 5c are connected by oil hole 5d.Herein, have four packing 5a, the centre of four packing 5a is provided with an oiling ring 5b, and namely the left and right both sides of oiling ring 5b have respectively two packing 5a.
Advantage that the present embodiment has has:
(1) the packing 5a of filling wadding between reel transmission shaft 3 and reel casing 2 compresses with gland 6, and the gap so that obstruction spills reaches sealing purpose.
(2) it adopts the packing 5a that the soft graphite braided packing high temperature resistant, that rebound resilience good, oilness is good is made, can play good sealing effectiveness, the soft graphite braided packing has high anti-penetrating power and self lubricity, do not need excessive axial pressing force, can reduce the wearing and tearing to reel transmission shaft 3.
(3) the oiling ring 5b of steel is set in the centre of a plurality of packing 5a, the position of corresponding oiling ring 5b is provided with oil hole 5d and lubricating cup 5c on reel casing 2, lubricating cup 5c is arranged on the outer end of oil hole 5d, adopt the mode of intermittent oiling that lubricating cup 5c is refueled, sealing place is lubricated oil to packing 5a along oil hole 5d and oiling ring 5b, so can improve the distribution vertically of 6 pairs of packing 5a snap-in forces of gland, make the wearing and tearing of packing 5a more even, thereby effectively guarantee sealing effectiveness.
(4) inject the contact surface that lubricating oil not only can lubricate packing 5a and reel transmission shaft 3, reduce the filler wearing and tearing, improve the work-ing life of tightness system, and can effectively promote the effect that seals.
(5) after packing 5a is worn down to a certain degree, but loosening fasteners 7, and the position of adjusting gland 6 makes gland 6 further compress packing 5a, thereby plays the dynamic seal effect.
According to an embodiment of the present utility model, cross section between described packing 5a and oiling ring 5b is work in coordination trapezoidal, and described gland 6 is near the taper shape of the shape of the end of the described packing 5a compression end shape of gland (or be called) for matching with packing 5a.So can effectively improve the compression effect of gland 6, guarantee the fitting tightly of outside surface of the internal surface of packing 5a and reel casing 2 ends and reel transmission shaft 3.
Described gland 6 has ring body 6a, ring body 6a ring is located at the outside of described reel transmission shaft 3, protrude out annular plush copper 6b from the end of ring body 6a, the end of annular plush copper 6b inserts described storage tank 2a and is connected to the other end of described soft packing seal parts 5, and ring body 6a is connected by described fastening piece 7 with described reel casing 2.
On described storage tank 2a inwall, the position corresponding with oiling ring 5b is provided with groove 2b, the width of described groove 2b is greater than the width of oiling ring 5b, is convenient to cause oiling ring 5b can import lubricating oil by oiling ring 5b smoothly during the shift position vertically regulating snap-in force.
Described fastening piece 7 is studs, use gland 6 and studs 7 that packing 5a is compressed, can regulate easily the snap-in force of 6 couples of packing 5a of gland, guarantee effectively sealing, furthermore, can guarantee the fitting tightly of outside surface of the internal surface of packing 5a and reel casing 2 ends and reel transmission shaft 3 by the snap-in force of regulating gland 6.
When the present embodiment uses, it is the stock rod normal operation period, to regularly add lubricating oil to lubricating cup 5c, regularly detect the leak case of blast furnace gas with instrument, and in time regulate the snap-in force of 6 couples of packing 5a of gland or change packing 5a by studs 7 according to leak degree, improve sealing effectiveness, avoid the leakage of blast furnace gas.
The above is only several embodiment of the present utility model, and those skilled in the art can carry out various changes to the utility model embodiment according to application documents are disclosed, modification or combination and do not break away from spirit and scope of the present utility model.
Claims (8)
1. a blast furnace is with the composite seal device of mechanical winding drum for trial rod casing, it is characterized in that, described composite seal device adopts double seal, it is wadding dynamic seal between reel casing and reel transmission shaft that the labyrinth seal that first step sealing is comprised of the outside surface of the end internal surface of reel casing and reel transmission shaft, the second stage seal.
2. blast furnace according to claim 1 is with the composite seal device of mechanical winding drum for trial rod casing, it is characterized in that, the described first step be sealed into the reel casing internal surface, with the set a plurality of rectangular teeths in the junction of described reel transmission shaft, the outside surface of described rectangular teeth and reel transmission shaft forms expansion chamber, to form labyrinth seal structure.
3. blast furnace according to claim 1 is with the composite seal device of mechanical winding drum for trial rod casing, it is characterized in that, the internal surface of described reel casing is provided with storage tank, one end opening of storage tank, the other end sealing of storage tank, one end of storage tank sealing is positioned at a side of described first step sealing, the sealing of the described second stage comprises the soft packing seal parts, the soft packing seal parts are arranged in storage tank, and an end contact of soft packing seal parts is at an end place of the sealing of storage tank, the other end connects gland, and gland is connected on described reel casing by fastening piece.
4. blast furnace according to claim 3 is with the composite seal device of mechanical winding drum for trial rod casing, it is characterized in that, described soft packing seal parts comprise a plurality of packings, packing is made by the soft graphite braided packing, a plurality of packings are arranged in described storage tank, and are glanded and are installed with, and are provided with oiling ring in the centre of a plurality of packings, outside at described reel casing is provided with lubricating cup, and oiling ring and lubricating cup are connected by oil hole.
5. blast furnace according to claim 3 is with the composite seal device of mechanical winding drum for trial rod casing, it is characterized in that, described gland has ring body, the ring body ring is located at the outside of described reel transmission shaft, protrude out annular plush copper from an end of ring body, one end of annular plush copper inserts described storage tank and is connected to the other end of described soft packing seal parts, and ring body is connected by described fastening piece with described reel casing.
6. blast furnace according to claim 4 is with the composite seal device of mechanical winding drum for trial rod casing, it is characterized in that, cross section between described packing and oiling ring is work in coordination trapezoidal, and described gland is near the taper shape that matches with packing that is shaped as of an end of described packing.
7. blast furnace according to claim 4 with the composite seal device of mechanical winding drum for trial rod casing, is characterized in that, position corresponding with described oiling ring on described storage tank inwall is provided with groove, and the width of described groove is greater than the width of oiling ring.
8. blast furnace according to claim 3 with the composite seal device of mechanical winding drum for trial rod casing, is characterized in that, described fastening piece is studs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539968 CN202925043U (en) | 2012-10-19 | 2012-10-19 | Composite sealing device for mechanical stock rod winding drum box body for blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539968 CN202925043U (en) | 2012-10-19 | 2012-10-19 | Composite sealing device for mechanical stock rod winding drum box body for blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202925043U true CN202925043U (en) | 2013-05-08 |
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ID=48215026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220539968 Expired - Lifetime CN202925043U (en) | 2012-10-19 | 2012-10-19 | Composite sealing device for mechanical stock rod winding drum box body for blast furnace |
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| Country | Link |
|---|---|
| CN (1) | CN202925043U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876826A (en) * | 2012-10-19 | 2013-01-16 | 中冶京诚工程技术有限公司 | Composite sealing device for mechanical stock rod winding drum box body for blast furnace |
| WO2016020903A1 (en) * | 2014-08-04 | 2016-02-11 | Capello S.R.L. | Forward support rotating assembly for a snapping roll of a snapping unit of a combine harvesting machine |
| CN108443171A (en) * | 2018-03-13 | 2018-08-24 | 浙江宣达特种合金流程装备股份有限公司 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
| CN114263746A (en) * | 2021-11-23 | 2022-04-01 | 中冶赛迪工程技术股份有限公司 | Contact type solid particle packing labyrinth seal structure |
-
2012
- 2012-10-19 CN CN 201220539968 patent/CN202925043U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876826A (en) * | 2012-10-19 | 2013-01-16 | 中冶京诚工程技术有限公司 | Composite sealing device for mechanical stock rod winding drum box body for blast furnace |
| WO2016020903A1 (en) * | 2014-08-04 | 2016-02-11 | Capello S.R.L. | Forward support rotating assembly for a snapping roll of a snapping unit of a combine harvesting machine |
| US10136580B2 (en) | 2014-08-04 | 2018-11-27 | Capello S.R.L. | Forward support rotating assembly for a snapping roll of a snapping unit of a combine harvesting machine |
| CN108443171A (en) * | 2018-03-13 | 2018-08-24 | 浙江宣达特种合金流程装备股份有限公司 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
| CN114263746A (en) * | 2021-11-23 | 2022-04-01 | 中冶赛迪工程技术股份有限公司 | Contact type solid particle packing labyrinth seal structure |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |