CN103603955A - Movable sealing connection device of rotary furnace - Google Patents
Movable sealing connection device of rotary furnace Download PDFInfo
- Publication number
- CN103603955A CN103603955A CN201310487545.5A CN201310487545A CN103603955A CN 103603955 A CN103603955 A CN 103603955A CN 201310487545 A CN201310487545 A CN 201310487545A CN 103603955 A CN103603955 A CN 103603955A
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- labyrinth
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- cooling bearing
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Abstract
The invention discloses a movable sealing connection device of a rotary furnace. A copper sleeve is sleeved on a rotary barrel body and fixedly connected with a water cooling bearing seat through a perforation bolt, a press cover is fixed on the water cooling bearing seat through a bolt, an inner labyrinth ring inner hole is connected with the rotary barrel body in a clearance fit mode, oil immersed asbestos filler is filled between the inner side of the labyrinth cover inner ring and the outer side of the inner labyrinth ring inner ring, and the sealing press cover covers the filler tightly. High temperature resistant grease is injected in a gap between the water cooling bearing seat and the inner labyrinth ring and the labyrinth cover through an oil cup. A sealing cover is fixedly connected with the labyrinth cover through a bolt, and the sealing cover is arranged on a frame. The connection device adopts the modes of labyrinth sealing and grease filling to conduct sealing conveniently, is simple in structure, cannot abrade parts and ensures a lubricating effect due to the fact that the grease sealing can be conducted by simply filling the grease continuously and a sealing effect cannot become poor in the use process.
Description
Technical field
the present invention relates to a kind of seal arrangement, be applicable to the place that is rotationally connected of rotary furnace connecting tube, particularly a kind of moving seal connection device of rotary furnace.
Background technique
Owing to often can be filled with ammonia or hydrogen in reducing furnace using process, to guarantee the reducing atmosphere in stove.If seal badly, ammonia leaks, and can impact environment, and hydrogen gas leakage may be blasted.And if there is air to enter in stove, can destroy the reducing atmosphere in stove, cause product rejection.And rotary furnace work time must be heated to 700 ℃, now the feeding and discharging end temperature at rotary furnace has reached 130 ℃ of left and right, and sealing has been caused to difficulty.
Tradition is to adopt graphite annulus conical surface sealing structure.Separately there is following existing patent:
Chinese patent: notification number: CN201934660U discloses a kind of huge revolving stove moving seal connection device; what adopt is by the contact of a pair of outer spherical surface flange; and in Seal cage, input certain shielding gas and keep malleation to seal; utilize Balancing system to combine with stage clip, by regulating the quality of balancing weight to carry out regulating sealing pressure.This patent remains and adopts contact sealing configuration, and along with the running of equipment, wearing and tearing will inevitably appear in surface of contact, although there is balancing weight regulating sealing pressure, because wearing and tearing are impossible completely evenly, so the sealing effect of surface of contact will inevitably variation.
Chinese patent: notification number: CN102564113A discloses a kind of rotary furnace and seal arrangement thereof, what adopt is the rubber tyre bag elasticity crush seal pad that inner sealing is filled with fluid, and the body of heater that makes sealing gasket be adjacent to all the time rotary furnace under the elasticity extruding of rubber tyre bag is realized the mode of sealing.
Chinese patent: publication number
:the dynamic seal apparatus that CN739552Y rotary furnace adopts is: bearing is equipped with in the termination at rotary furnace, bearing is furnished with bearing case, between bearing case and bearing, be equipped with successively a ring recess shape sealing steel rings, a circle seal ring, a circle convex elastic ring, on bearing, offer several circular holes, pocketed springs and locating stud in circular hole, utilize spring suppression to live flute profile sealing steel rings, seal ring and convex elastic seal ring and seal.This mode remains contact sealing, can be along with use causes sealing effect variation.
Prior art adopts contact seal, and complex structure is installed inconvenient.Rely on the rubbing contact of obturator to seal, the easy like this wearing and tearing that cause part, make sealing effect variation.Now must shut down maintenance, renewal part.
Summary of the invention
Technical problem to be solved by this invention is, a kind of rotating seal connection is provided, and can make in rotary furnace feeding and discharging end operation process, in the maintenance sealing of high temperature condition, to improve sealing effect, and to be convenient to maintenance and the part exchanging of equipment.
Technological scheme of the present invention is as follows, a kind of moving seal connection device of rotary furnace, it is characterized in that, rotating cylinder is set with copper sheathing, and copper sheathing is provided with oilhole, and is fixedly connected with water-cooling bearing block by junction of the edges of two sheets of paper bolt, gland is bolted on water-cooling bearing block, and gland inner ring is step-like, in step, be provided with maze trough, step is stuck in the step of rotating cylinder periphery; Interior labyrinth ring endoporus is connected with rotating cylinder Spielpassung, and fixes by Cock screw; Labyrinth lid is provided with inner ring and the outer ring of protrusion, and labyrinth lid outer ring sleeve is loaded in water-cooling bearing block, and labyrinth lid inner ring is set in the annular groove of interior labyrinth, and labyrinth lid is bolted with water-cooling bearing block to be fixed; Between the lid inner side of inner ring, labyrinth and the outside of interior labyrinth ring inner ring, be filled with oil immersion asbestos packing, and compress by sealing gland; " O " shape seal ring is housed between the inner side of lid outer ring, labyrinth and interior labyrinth ring outer ring; The periphery of water-cooling bearing block is provided with pouring orifice, and pouring orifice is provided with lubricating cup, in the interval of water-cooling bearing block and interior labyrinth ring and labyrinth lid, by lubricating cup, is marked with high temperature resistant lubricating grease; Seal closure is fixedly connected with labyrinth lid by bolt, and seal closure is put in frame.
Further, described " O " shape sealing ring material adopts high-temperature resistant rubber.
What further, described interior labyrinth ring adopted is ironcasting.
What further, described rotating cylinder adopted is heat-resistance stainless steel.
What difference with the prior art of the present invention was that the present invention adopts is mainly the non-contact sealing of this class of labyrinth seal, and sealing place of contact is mainly to rely on this mode of supplementing and being not easy to leak of being easy to of lubricating grease that is filled with.Therefore sealing effect can variation.And prior art employing is all contact sealing, although Sealing can continue sealing effect by the compensating action of the parts such as spring, but because the wearing and tearing of Sealing can not be completely even, even if therefore have spring-compensating can not guarantee that sealing effect can reach the object of expection.And the structure of prior art is also comparatively complicated, and comparatively difficulty is installed.
Key technology point of the present invention is that the mode that has adopted labyrinth seal and lubricating grease to fill seals very easily, secondly what be that in utilizing, labyrinth ring adopts is ironcasting, and rotating cylinder employing is heat-resistance stainless steel, utilize the thermal expansion coefficient of bi-material different, interior labyrinth ring can be installed on rotating cylinder at an easy rate and there will not be leakage.
What the present invention adopted is the seal form that labyrinth seal and grease sealing combine, simple in structure.Labyrinth seal is noncontact seal, can not cause the wearing and tearing of part, and grease sealing only needs to continue to be filled with lubricating grease, therefore there will not be the situation of sealing effect variation in using process.
Technical conceive is to be to utilize fluid through the passage of many throttle clearance and expansion cavity composition according to the characteristic of labyrinth seal, through throttling repeatedly and produce very large energy loss, fluid head greatly declines, and makes fluid be difficult to seepage, to reach the object of sealing.And this sealing means belongs to noncontact seal, can there is not along with use the situation of sealing effect variation, and be applicable to gas seal.And repack with grease sealing can be injected lubricating grease and be guaranteed easily lubrication effect by lubricating cup.By two kinds of modes, combine, make the effect of gas seal be better than prior art.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention.
Fig. 2 is the structural representation that in Fig. 1, amplify at A place.
Fig. 3 is the structural representation that in Fig. 1, amplify at B place.
Fig. 4 is the floor map of labyrinth lid 6 in Fig. 1.
Fig. 5 is the floor map of interior labyrinth ring 7 in Fig. 1.
Fig. 6 is the floor map of sealing gland 10 in Fig. 1.
Fig. 7 is installment state profile schematic diagram of the present invention.
In figure: 1. rotating cylinder, 2. gland, 3. copper sheathing, 4. lubricating cup, 5. water-cooling bearing block, 6. labyrinth lid, 7. interior labyrinth ring, 8. Cock screw, 9. seal closure, 10. sealing gland, 11. bolts, 12. oil immersion asbestos packings, 13. bolts, 14. " O " shape seal ring, 15. high temperature resistant lubricating grease, 16. junction of the edges of two sheets of paper bolts, 17. bolts, 18. maze troughs, 19. frames.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, referring to Fig. 1 to Fig. 7, a kind of moving seal connection device of rotary furnace, rotating cylinder 1 is set with copper sheathing 3, and copper sheathing 3 is provided with oilhole, and is fixedly connected with water-cooling bearing block 5 by junction of the edges of two sheets of paper bolt 16, gland 2 is fixed on water-cooling bearing block 5 by bolt 17, and gland 2 inner rings are step-like, are provided with maze trough 18 in step, and step is stuck in the step of rotating cylinder 1 periphery; Interior labyrinth ring 7 endoporus are connected with rotating cylinder 1 Spielpassung, and fixing by Cock screw 8; Labyrinth lid 6 is provided with inner ring and the outer ring of protrusion, and labyrinth is covered 6 outer ring sleeves and is loaded in water-cooling bearing block 5, and labyrinth is covered 6 inner rings and is set in interior labyrinth ring 7 grooves, and labyrinth lid 6 is connected and fixed by bolt 13 and water-cooling bearing block 5; Labyrinth is covered between the inner side of 6 inner rings and the outside of interior labyrinth ring 7 inner rings and is filled with oil immersion asbestos packing 12, and compresses by sealing gland 10; Labyrinth is covered between the inner side of 6 outer rings and interior labyrinth ring 7 outer rings " O " shape seal ring 14 is housed; The periphery of water-cooling bearing block 5 is provided with pouring orifice, and pouring orifice is provided with lubricating cup 4, in the interval of water-cooling bearing block 5 and interior labyrinth ring 7 and labyrinth lid 6, by lubricating cup 4, is marked with high temperature resistant lubricating grease 15; Seal closure 9 is fixedly connected with labyrinth lid 6 by bolt 11, and seal closure 9 is put in frame 19.
Described " O " shape seal ring 14 materials adopt high-temperature resistant rubber.
What described interior labyrinth ring 7 adopted is ironcasting.
What described rotating cylinder 1 adopted is heat-resistance stainless steel.
embodiment:a preferred embodiments of the present invention is, is set with actively copper sheathing 3 on rotating cylinder 1, makes 1 of copper sheathing 3 and rotating cylinder have 0.3～1mm gap.Copper sheathing 3 is provided with oilhole, and adopts interference fit with water-cooling bearing block 5, and is fixedly connected with junction of the edges of two sheets of paper bolt 16.Gland 2 is fixed on water-cooling bearing block 5 by bolt 17, is processed with maze trough on gland, and is processed with step rotating cylinder 1 is clamped.Interior labyrinth ring 7 adopts ironcasting to make, and its endoporus and rotating cylinder 1 adopt the Spielpassung of 0.01～0.06mm, and are fixed on rotating cylinder 1 by Cock screw 8, and rotating cylinder 1 adopts heat-resistance stainless steel to make.Labyrinth lid 6 is connected and fixed with water-cooling bearing block 5 use bolts 13.Labyrinth lid 6 forms labyrinth seal with interior labyrinth ring 7, and wherein inner ring is inserted oil immersion asbestos packing 12, and with endoporus, is processed with sealing gland 10 compressions in labyrinth.O-ring seals 14 is equipped with in outer ring, and O-ring seals material adopts can resistant to elevated temperatures rubber.Between water-cooling bearing block and interior labyrinth ring and labyrinth lid, by lubricating cup 4, fill with high temperature resistant lubricating grease 15.Seal closure 9 is fixing with labyrinth lid 6 by bolt 11.Seal closure 9 is placed in frame 19 actively.By above structure, rotating cylinder and seal closure inside are hedged off from the outer world." O " shape seal ring 14 materials adopt high-temperature resistant seal ring.What interior labyrinth ring 7 adopted is ironcasting.What rotating cylinder 1 adopted is heat-resistance stainless steel.
Structural principle of the present invention is as follows, when rotary kiln is worked, because temperature raises, rotating cylinder 1 expanded by heating and extension, promote water-cooling bearing block 5, interior labyrinth ring 7, labyrinth lid 6, copper sheathing 3, sealing gland 10, seal closure 9 etc. moves together in frame 19, and each part is all heated and expands, because rotating cylinder 1 adopts heat-resistance stainless steel, its linear expansion coeffcient is 17 * 10
-6/ ℃, and interior labyrinth ring 7 materials are cast iron, its linear expansion coeffcient is 8.5～11.6 * 10
-6/ ℃, the linear expansion coeffcient of copper sheathing 3 is 17.9 * 10
-6/ ℃, in diametric(al), due to the difference of rotating cylinder 1 with interior labyrinth ring 7 linear expansion coefficients, its cooperation becomes interference fit by the Spielpassung from 0.01～0.06mm, and the gap between interior labyrinth ring 7 and rotating cylinder 1 is shut.And rotating cylinder 1 changes little with coordinating of 3 of copper sheathings.Therefore the gas in rotating cylinder 1 and seal closure 9 will be run out of, first will be by the labyrinth seal between sealing gland 10 and rotating cylinder 1, then through the labyrinth seal between oil immersion asbestos packing 12 sealings and interior labyrinth ring 7 and labyrinth lid 6, packing seal between O-ring seals 14 and interior labyrinth ring 7 arrives the cavity between water-cooling bearing block 5 and interior labyrinth ring 7 and labyrinth lid 6, now gas is through the repeatedly very large energy consumption of throttling generation, and gas pressure greatly declines.And owing to having filled up high temperature resistant lubricating grease 15 in this cavity, and between copper sheathing 3 and rotating cylinder 1, be also full of high temperature resistant lubricating grease, therefore reached the object that the gas seal in rotating cylinder 1 and seal closure 9 is lived.And extraneous air will enter in rotating cylinder 1, equally also by above sealing configuration, sealed.And rotating cylinder 1 rotation, labyrinth ring 7 rotations in driving, therefore seal closure 9 can not rotate owing to being placed in frame 19, makes connected other parts also can not follow rotating cylinder 1 rotation.Formed thus the motive sealing of rotary furnace.
Claims (4)
1. the moving seal connection device of a rotary furnace, it is characterized in that, rotating cylinder is set with copper sheathing, copper sheathing is provided with oilhole, and be fixedly connected with water-cooling bearing block by junction of the edges of two sheets of paper bolt, gland is bolted on water-cooling bearing block, and gland inner ring is step-like, in step, be provided with maze trough, step is stuck in the step of rotating cylinder periphery; Interior labyrinth ring endoporus is connected with rotating cylinder Spielpassung, and is fixed on rotating cylinder by Cock screw; Labyrinth lid is provided with inner ring and the outer ring of protrusion, and labyrinth lid outer ring sleeve is loaded in water-cooling bearing block, and labyrinth lid inner ring is set in the annular groove of interior labyrinth, and labyrinth lid is bolted with water-cooling bearing block to be fixed; Between the lid inner side of inner ring, labyrinth and the outside of interior labyrinth ring inner ring, be filled with oil immersion asbestos packing, and compress by sealing gland; " O " shape seal ring is housed between the inner side of lid outer ring, labyrinth and interior labyrinth ring outer ring; The periphery of water-cooling bearing block is provided with pouring orifice, and pouring orifice is provided with lubricating cup, in the interval of water-cooling bearing block and interior labyrinth ring and labyrinth lid, by lubricating cup, is marked with high temperature resistant lubricating grease; Seal closure is fixedly connected with labyrinth lid by bolt, and seal closure is put in frame.
2. the moving seal connection device of rotary furnace as claimed in claim 1, is characterized in that, described " O " shape sealing ring material adopts high-temperature resistant rubber.
3. the moving seal connection device of rotary furnace as claimed in claim 1, is characterized in that, what described interior labyrinth ring adopted is ironcasting.
4. the moving seal connection device of rotary furnace as claimed in claim 1, is characterized in that, what described rotating cylinder adopted is heat-resistance stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487545.5A CN103603955B (en) | 2013-10-18 | 2013-10-18 | A kind of moving seal connection device of rotary furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487545.5A CN103603955B (en) | 2013-10-18 | 2013-10-18 | A kind of moving seal connection device of rotary furnace |
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| CN103603955A true CN103603955A (en) | 2014-02-26 |
| CN103603955B CN103603955B (en) | 2016-01-20 |
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| CN201310487545.5A Active CN103603955B (en) | 2013-10-18 | 2013-10-18 | A kind of moving seal connection device of rotary furnace |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090232A (en) * | 2016-07-29 | 2016-11-09 | 湖南万容科技股份有限公司 | A kind of rotary kiln inner core rotary seal |
| CN106123579A (en) * | 2016-08-25 | 2016-11-16 | 江西稀有金属钨业控股集团有限公司 | A kind of seal closure of rotary furnace |
| CN106595293A (en) * | 2015-10-19 | 2017-04-26 | 四川绿冶科技有限责任公司 | Rotary kiln sealing device |
| CN108458590A (en) * | 2018-05-25 | 2018-08-28 | 河南龙成煤高效技术应用有限公司 | A kind of high warm tube plate sealing mechanism and rotary kiln |
| CN109723824A (en) * | 2019-02-28 | 2019-05-07 | 青岛伊克斯达智能装备有限公司 | A kind of low leakage rotary dynamic sealing device for waste and old rubber thermal cracking |
| WO2019153560A1 (en) * | 2018-02-08 | 2019-08-15 | 江苏海建股份有限公司 | Combined type sealing device special for incinerator |
| CN110898476A (en) * | 2019-12-11 | 2020-03-24 | 淮北重科矿山机器有限公司 | Sealing device for transmission main shaft of center transmission automatic rake-lifting thickener |
| CN111351345A (en) * | 2018-12-21 | 2020-06-30 | 艾森曼欧洲公司 | Rotary furnace |
| CN112207624A (en) * | 2020-10-27 | 2021-01-12 | 宁夏共享机床辅机有限公司 | Roller sealing device |
| WO2021147210A1 (en) * | 2020-01-21 | 2021-07-29 | 河南龙成煤高效技术应用有限公司 | Dynamic sealing structure and rotary kiln apparatus |
| CN114166018A (en) * | 2021-11-11 | 2022-03-11 | 东莞市众大机械实业有限公司 | Prevent new forms of energy material reaction unit of exhaust gas leakage |
| CN114810830A (en) * | 2022-05-06 | 2022-07-29 | 宜兴市环宇轴瓦制造有限公司 | Ten thousand tons of rotary kilns support bearing assembly |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595293A (en) * | 2015-10-19 | 2017-04-26 | 四川绿冶科技有限责任公司 | Rotary kiln sealing device |
| CN106090232A (en) * | 2016-07-29 | 2016-11-09 | 湖南万容科技股份有限公司 | A kind of rotary kiln inner core rotary seal |
| CN106123579A (en) * | 2016-08-25 | 2016-11-16 | 江西稀有金属钨业控股集团有限公司 | A kind of seal closure of rotary furnace |
| CN106123579B (en) * | 2016-08-25 | 2019-01-01 | 江西稀有金属钨业控股集团有限公司 | A kind of seal closure of rotary furnace |
| WO2019153560A1 (en) * | 2018-02-08 | 2019-08-15 | 江苏海建股份有限公司 | Combined type sealing device special for incinerator |
| CN108458590A (en) * | 2018-05-25 | 2018-08-28 | 河南龙成煤高效技术应用有限公司 | A kind of high warm tube plate sealing mechanism and rotary kiln |
| CN108458590B (en) * | 2018-05-25 | 2023-09-19 | 河南龙成煤高效技术应用有限公司 | High-temperature tube plate sealing mechanism and rotary kiln |
| CN111351345A (en) * | 2018-12-21 | 2020-06-30 | 艾森曼欧洲公司 | Rotary furnace |
| CN111351345B (en) * | 2018-12-21 | 2024-03-22 | 元俊股份有限公司 | Rotary furnace |
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| CN109723824A (en) * | 2019-02-28 | 2019-05-07 | 青岛伊克斯达智能装备有限公司 | A kind of low leakage rotary dynamic sealing device for waste and old rubber thermal cracking |
| CN109723824B (en) * | 2019-02-28 | 2024-01-09 | 青岛伊克斯达智能装备有限公司 | Low-leakage rotary dynamic sealing device for thermal cracking of waste rubber and plastic |
| CN110898476A (en) * | 2019-12-11 | 2020-03-24 | 淮北重科矿山机器有限公司 | Sealing device for transmission main shaft of center transmission automatic rake-lifting thickener |
| WO2021147210A1 (en) * | 2020-01-21 | 2021-07-29 | 河南龙成煤高效技术应用有限公司 | Dynamic sealing structure and rotary kiln apparatus |
| CN112207624A (en) * | 2020-10-27 | 2021-01-12 | 宁夏共享机床辅机有限公司 | Roller sealing device |
| CN112207624B (en) * | 2020-10-27 | 2022-11-22 | 宁夏共享机床辅机有限公司 | Roller sealing device |
| CN114166018A (en) * | 2021-11-11 | 2022-03-11 | 东莞市众大机械实业有限公司 | Prevent new forms of energy material reaction unit of exhaust gas leakage |
| CN114810830A (en) * | 2022-05-06 | 2022-07-29 | 宜兴市环宇轴瓦制造有限公司 | Ten thousand tons of rotary kilns support bearing assembly |
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| CN103603955B (en) | 2016-01-20 |
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Address after: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee after: JIANGXI TUNGSTEN HOLDING GROUP CO.,LTD. Address before: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee before: JIANGXI RARE EARTH & RARE METALS TUNGSTEN GROUP HOLDING Co.,Ltd. |
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Effective date of registration: 20220208 Address after: 341099 No. 36, Yingbin Avenue, Ganzhou economic and Technological Development Zone, Jiangxi Province Patentee after: Ganzhou Nonferrous Metallurgical Machinery Co.,Ltd. Address before: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee before: JIANGXI TUNGSTEN HOLDING GROUP CO.,LTD. |
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