CN103603955B - A kind of moving seal connection device of rotary furnace - Google Patents
A kind of moving seal connection device of rotary furnace Download PDFInfo
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- CN103603955B CN103603955B CN201310487545.5A CN201310487545A CN103603955B CN 103603955 B CN103603955 B CN 103603955B CN 201310487545 A CN201310487545 A CN 201310487545A CN 103603955 B CN103603955 B CN 103603955B
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- labyrinth
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Abstract
The invention discloses a kind of moving seal connection device of rotary furnace, rotating cylinder is set with copper sheathing, copper sheathing 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, interior labyrinth ring endoporus is connected with rotating cylinder Spielpassung, be filled with oil immersion asbestos packing between the inner side of labyrinth lid inner ring and the outside of interior labyrinth ring inner ring, and compressed by sealing gland; High temperature resistant lubricating grease is marked with by lubricating cup in the interval that water-cooling bearing block and interior labyrinth ring and labyrinth are covered; Seal closure to be covered with labyrinth by bolt and is fixedly connected with, and seal closure is put in frame.The mode that present invention employs labyrinth seal and lubricating grease filling seals very easily, structure is simple, 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 that in using process, sealing effect is deteriorated, ensure lubrication effect.
Description
Technical field
The present invention relates to a kind of seal arrangement, what be applicable to rotary furnace connecting tube is rotationally connected place, particularly a kind of moving seal connection device of rotary furnace.
Background technique
Due to often ammonia or hydrogen can be filled with in reducing furnace using process, to ensure the reducing atmosphere in stove.If seal bad, ammonia leaks, and can impact environment, and hydrogen gas leakage then may be blasted.And if there is air to enter in stove, then can destroys the reducing atmosphere in stove, cause product rejection.And 700 DEG C must be heated to during rotary furnace work, now reach about 130 DEG C in the feeding and discharging end temperature of rotary furnace, difficulty is caused to sealing.
Tradition adopts 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 contact by a pair outer spherical surface flange; and in Seal cage, input certain shielding gas keep malleation to seal; utilizing Balancing system to combine with stage clip, carrying out regulating sealing pressure by regulating the quality of balancing weight.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, can not completely evenly owing to wearing and tearing, and therefore the sealing effect of surface of contact will inevitably be deteriorated.
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 making sealing gasket be adjacent to rotary furnace all the time under the elasticity extruding of rubber tyre bag realizes the mode of sealing.
Chinese patent: publication number
:the dynamic seal apparatus that CN739552Y rotary furnace adopts is: in the termination of rotary furnace, bearing is housed, bearing is furnished with bearing case, a ring recess shape sealing steel rings, a circle seal ring, a circle convex elastic ring is equipped with successively between bearing case and bearing, several circular holes are offered on bearing, 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, sealing effect can be caused to be deteriorated along with use.
Prior art adopts contact seal, complex structure, installs inconvenient.Rely on the rubbing contact of obturator to seal, the easy like this wearing and tearing causing part, make sealing effect be deteriorated.Now necessary maintenance down, renewal part.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of rotating seal connection, can make to seal in the maintenance of high temperature condition in rotary furnace feeding and discharging end operation process, improves sealing effect, and is 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, is provided with maze trough in step, step is stuck in the step of rotating cylinder periphery; Interior labyrinth ring endoporus is connected with rotating cylinder Spielpassung, and is fixed 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 to be fixed with water-cooling bearing block; Be filled with oil immersion asbestos packing between the inner side of labyrinth lid inner ring and the outside of interior labyrinth ring inner ring, and compressed 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, is marked with high temperature resistant lubricating grease in the interval that water-cooling bearing block and interior labyrinth ring and labyrinth are covered by lubricating cup; Seal closure to be covered with labyrinth by bolt and is fixedly connected with, and seal closure is put in frame.
Further, described " O " shape sealing ring material adopts high-temperature resistant rubber.
Further, what described interior labyrinth ring adopted is ironcasting.
Further, what described rotating cylinder adopted is heat-resistance stainless steel.
Difference with the prior art of the present invention is this kind of non-contact seals of mainly labyrinth seal that the present invention adopts, and sealing place of contact mainly relies on and is filled with that lubricating grease is this to be easy to supplement and to be not easy the mode of leaking.Therefore sealing effect can not be deteriorated.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 completely evenly, even if therefore there is spring-compensating to ensure, sealing effect can reach the object of expection.And the structure of prior art is also comparatively complicated, comparatively difficulty is installed.
Key technology point of the present invention is that the mode that have employed labyrinth seal and lubricating grease filling seals very easily, secondly what be then 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 easily and there will not be leakage.
What the present invention adopted is the seal form that labyrinth seal and grease sealing combine, and structure is simple.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 that in using process, sealing effect is deteriorated.
Technical conceive is the passage utilizing fluid to form through many throttle clearance and expansion cavity according to the characteristic of labyrinth seal, very large energy loss is produced through repeatedly throttling, 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, the situation that sealing effect is deteriorated can not be there is along with use, and be applicable to gas seal.And repack with grease sealing can be injected lubricating grease by lubricating cup and ensure lubrication effect easily.Combined by two kinds of modes, 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, A place amplifies.
Fig. 3 is the structural representation that in Fig. 1, B place amplifies.
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 appearance 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, labyrinth ring 7., 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, see 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 ring is step-like, is provided with maze trough 18 in step, step is stuck in the step of rotating cylinder 1 periphery; Interior labyrinth ring 7 endoporus is connected with rotating cylinder 1 Spielpassung, and is fixed 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 groove, 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 ring and is filled with oil immersion asbestos packing 12, and is compressed by sealing gland 10; Labyrinth is covered between the inner side of 6 outer rings and interior labyrinth ring 7 outer ring and " 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, and water-cooling bearing block 5 and interior labyrinth ring 7 and labyrinth are covered in the interval of 6 and be marked with high temperature resistant lubricating grease 15 by lubricating cup 4; Seal closure 9 covers 6 by bolt 11 and labyrinth and is fixedly connected with, and seal closure 9 is put in frame 19.
Described " O " shape seal ring 14 material adopts 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 better embodiment of the present invention is set with copper sheathing 3 actively on rotating cylinder 1, makes there is 0.3 ~ 1mm gap between copper sheathing 3 and rotating cylinder 1.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, and gland is processed with maze trough, and is processed with step and is clamped by rotating cylinder 1.Interior labyrinth ring 7 adopts ironcasting to make, and its endoporus and rotating cylinder 1 adopt the Spielpassung of 0.01 ~ 0.06mm, and is 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 bolt 13.Labyrinth lid 6 forms labyrinth seal with interior labyrinth ring 7, and wherein inner ring inserts oil immersion asbestos packing 12, and compresses with the sealing gland 10 that endoporus is processed with labyrinth.O-ring seals 14 is then equipped with in outer ring, and O-ring seals material adopts can resistant to elevated temperatures rubber.Water-cooling bearing block and interior labyrinth ring and labyrinth fill high temperature resistant lubricating grease 15 by lubricating cup 4 between covering.Seal closure 9 covers 6 by bolt 11 and labyrinth to be fixed.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 material adopts 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 works, because temperature raises, rotating cylinder 1 expanded by heating and extend, promote water-cooling bearing block 5, interior labyrinth ring 7, labyrinth lid 6, copper sheathing 3, sealing gland 10, seal closure 9 etc. to move in frame 19 together, 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/ DEG C, and interior labyrinth ring 7 material is cast iron, its linear expansion coeffcient is 8.5 ~ 11.6 × 10
-6/ DEG C, the linear expansion coeffcient of copper sheathing 3 is 17.9 × 10
-6/ DEG C, in diametric(al), due to rotating cylinder 1 and the difference of interior labyrinth ring 7 linear expansion coefficient, its cooperation becomes interference fit by from the Spielpassung of 0.01 ~ 0.06mm, is shut in the gap between interior labyrinth ring 7 and rotating cylinder 1.And coordinating between rotating cylinder 1 with copper sheathing 3 changes not quite.Therefore the gas in rotating cylinder 1 and seal closure 9 will be run out of, first will by the labyrinth seal between sealing gland 10 and rotating cylinder 1, then to seal and labyrinth seal between 6 is covered in interior labyrinth ring 7 and labyrinth through oil immersion asbestos packing 12, packing seal between O-ring seals 14 and interior labyrinth ring 7 arrives water-cooling bearing block 5 and interior labyrinth ring 7 and labyrinth and covers cavity between 6, now gas produces very large energy ezpenditure through repeatedly throttling, and gas pressure greatly declines.And owing to being filled with high temperature resistant lubricating grease 15 in this cavity, and between copper sheathing 3 and rotating cylinder 1, be also filled with high temperature resistant lubricating grease, therefore reach the object of the gas seal in rotating cylinder 1 and seal closure 9 being lived.And the air in the external world will enter in rotating cylinder 1, equally also closed by above sealing configuration.And rotating cylinder 1 rotates, in driving, labyrinth ring 7 rotates, and therefore seal closure 9 can not rotate owing to being placed in frame 19, makes other parts connected that rotating cylinder 1 also can not be followed to rotate.Thus constitute 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, be provided with maze trough in step, 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 to be fixed with water-cooling bearing block; Be filled with oil immersion asbestos packing between the inner side of labyrinth lid inner ring and the outside of interior labyrinth ring inner ring, and compressed 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, is marked with high temperature resistant lubricating grease in the interval that water-cooling bearing block and interior labyrinth ring and labyrinth are covered by lubricating cup; Seal closure to be covered with labyrinth by bolt and is fixedly connected with, 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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| Publication Number | Publication Date |
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| CN103603955A CN103603955A (en) | 2014-02-26 |
| CN103603955B true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11959704B2 (en) | 2018-12-21 | 2024-04-16 | Onejoon Gmbh | Rotary tube kiln |
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| CN106595293A (en) * | 2015-10-19 | 2017-04-26 | 四川绿冶科技有限责任公司 | Rotary kiln sealing device |
| CN106090232B (en) * | 2016-07-29 | 2018-05-11 | 湖南万容科技股份有限公司 | A kind of rotary kiln inner cylinder rotary seal |
| 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 |
| CN108151030A (en) * | 2018-02-08 | 2018-06-12 | 江苏海建股份有限公司 | A kind of incinerator special-purpose combined type sealing device |
| 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 |
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| CN111141143A (en) * | 2020-01-21 | 2020-05-12 | 河南龙成煤高效技术应用有限公司 | Dynamic sealing structure and rotary kiln equipment |
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| CN114166018B (en) * | 2021-11-11 | 2022-10-11 | 广东众大智能科技有限公司 | Prevent new forms of energy material reaction unit of exhaust gas leakage |
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| CN103603955A (en) | 2014-02-26 |
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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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