CN107143655B - Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening - Google Patents
Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening Download PDFInfo
- Publication number
- CN107143655B CN107143655B CN201710496398.6A CN201710496398A CN107143655B CN 107143655 B CN107143655 B CN 107143655B CN 201710496398 A CN201710496398 A CN 201710496398A CN 107143655 B CN107143655 B CN 107143655B
- Authority
- CN
- China
- Prior art keywords
- dynamic sealing
- sealing
- sealing ring
- automatic tightening
- pyrolysis oven
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
- C10B47/28—Other processes
- C10B47/30—Other processes in rotary ovens or retorts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Gasket Seals (AREA)
Abstract
The present invention provides a kind of revolution pyrolysis oven automatic tightening formula dynamic sealing systems, including sealing ring, the sealing ring center is connected to dynamic sealing plate, it is to be slidably connected between the sealing ring and dynamic sealing plate, the sealing ring is equipped with the pretightning force for promoting to seal ring inner surface and dynamic sealing plate outer surface gluing, sealing, dynamic sealing board bottom portion is connected to connection frame, and thermal insulation board is equipped between the dynamic sealing plate and connection frame.Continuous pyrolysis equipment of the invention is as a kind of agriculture and forestry organic waste material processing equipment gently simplified, applied to the vast rural areas, whole equipment requires economical adaptation, in economic whole relatively backward rural area, there is application value, equipment dynamic sealing device structure is simple, easy to maintenance, use cost is low etc. for this, and adapts to the operating environment under equipment hot conditions.
Description
Technical field
The present invention relates to technical field of sealing technology more particularly to a kind of revolution pyrolysis oven sealing device, in particular to a kind of times
Turn pyrolysis oven automatic tightening formula dynamic sealing system.
Background technique
According to retrieval, there are following the relevant technologies about pyrolysis oven sealing system:
Chinese patent is disclosed application No. is 200610156882.6, a kind of entitled patent of invention of dynamic sealing device,
It is installed between shaft and cabinet, and is sheathed in shaft, and the dynamic sealing device includes a pedestal annular in shape and is located at
The intracorporal sealing ring group of seat, the sealing ring group includes the inner seal ring and outer seal ring along the radially inner and outer setting of shaft, interior,
Multiple flutings are along the circumferential direction evenly equipped on outer seal ring respectively, the fluting is extended through in the inside and outside sealing ring
Between inside and outside diameter, and the position slotted on inside and outside sealing ring circumferentially mutually staggers.Dynamic sealing device using the above structure
When in running order, it is able to maintain axial direction and moves radially, can be with shaft free floating, therefore, dynamic sealing dress of the present invention
The service life set is higher, and sealing performance is preferable, can meet the seal request of high temperature, high pressure.
Chinese patent is disclosed application No. is 201410292555.8, and a kind of entitled invention of floating seal is special
Benefit belongs to oily husky, oil shale rotary dry distillation technical field, contains outer simplified, inner cylinder, inner cylinder bearing, conveyance conduit, pipeline
Outer wall movable sleeving, seal receptacle, static seal A, dynamic seal, sunk screw, static seal B, sealing gland, spring, spring base,
Bolt, nut etc..Inner cylinder is connect with conveyance conduit one end, and pipeline outer wall movable sleeving is housed on conveyance conduit, and pipeline outer wall moves
Dynamic set outside cooperates with dynamic seal inner hole spherical cambered surface, and seal receptacle is connect through conveyance conduit with outer barrel, static seal periphery and
Seal receptacle fit inside, static seal is combined with dynamic seal makes conveyance conduit and outer barrel confluce can be close in different location
Envelope.Dynamic seal of the present invention floats with inner cylinder change in location, and device sealing performance is reliable, installation, adjustment and it is easy to maintenance,
It ensure that oily husky, oil shale retorting is gone on smoothly.
Common dynamic sealing mode includes: that cup packing, piston ring sealing, helixseal, pneumostop, waterpower are close at present
Envelope, centrifugal seal, packing seal, labyrinth seal, mechanical seal etc..
It is found by above-mentioned retrieval, there are some drawbacks in current equipment, if device structure is complicated, inconvenient maintenance, peace
Full performance is poor, and the service life is short, at high cost, the unstable problem of hot operation.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to existing deficiencies in the technology, a kind of revolution pyrolysis is provided
Furnace automatic tightening formula dynamic sealing system, the biomass continuous pyrolysis equipment are set as a kind of agriculture and forestry organic waste material processing gently simplified
It is standby, it is applied to the vast rural areas, whole equipment requires economical adaptation, in economic whole relatively backward rural area, pushes away
Wide application value, equipment dynamic sealing device structure is simple, easy to maintenance, use cost is low etc. for this, and adapts to equipment high temperature item
Operating environment under part.
The technical solution of the invention is as follows, provides a kind of following revolution pyrolysis oven automatic tightening formula dynamic sealing system, packet
Sealing ring is included, the sealing ring center is connected to dynamic sealing plate, is slidably connected between the sealing ring and dynamic sealing plate, described close
Seal ring is equipped with the pretightning force for promoting to seal ring inner surface and dynamic sealing plate outer surface gluing, sealing.
Preferably, dynamic sealing board bottom portion is connected to connection frame, thermal insulation board is equipped between the dynamic sealing plate and connection frame.
Preferably, being to be fixedly connected between the dynamic sealing plate, thermal insulation board and connection frame.
Preferably, the dynamic sealing plate, thermal insulation board or/and connection frame are annular setting.
Preferably, the sealing ring section is wedge shape, the sealing ring bottom is equipped with the section being obliquely installed, further includes
The end sleeve being pyrolyzed on furnace body, the end sleeve are equipped with the static seal plate for the section cooperation being obliquely installed with sealing ring.
Preferably, the static seal plate is obliquely installed in a ring, static seal board bottom portion is quiet close equipped with being used to support
The support frame of sealing plate, support frame as described above are connect with end sleeve.
Preferably, being additionally provided with pressing device at the top of the sealing ring, the pressing device is clamping hoop, the compression
Anchor ear, which is equipped with, provides the regulating device of pretightning force for sealing ring, and the regulating device is that clip and locking adjust bolt.
Preferably, the connection frame bottom is connect with rotating cylinder.
Preferably, the shear-face angle is 37 ± 5 °, the fixed company between the dynamic sealing plate, thermal insulation board and connection frame
It is connected in and is bolted.
Preferably, the revolution pyrolysis oven automatic tightening formula dynamic sealing system in symmetrical arrangement in rotating cylinder two sides,
Lubricating oil is coated between the sealing ring and quiet, dynamic sealing plate, the lubricating oil simultaneously forms one layer of sealing oil film.
Using the technical program the utility model has the advantages that
1, sealing ring section is wedge shape, general using having the silica gel of certain elasticity to be made, be divided into static sealing surface with move it is close
Cover, dynamic sealing face is fitted closely with equipment, after frayed, can automatic tightening, improve sealing performance and service life, and change
Into preceding comparing, sealing system service life can be improved 5 times or more;Static sealing surface keeps pressured state, guarantees its leakproofness.
2, the binding face in dynamic sealing face and equipment application is heat-insulated and cooling mechanism makes binding face keep lower temperature, and one
As be no more than 200 DEG C, while dynamic sealing face and static sealing surface are all made of oil film and are lubricated sealing, and sealing effect can be improved, prolong
Long life.
3, the pretightning force of flexible clip can adjust automatically, can also be by manually adjusting, ensure that system sealing can
By property.
Revolving drum operating temperature reaches as high as 700 degree or so in equipment, and cooling fin, benefit are housed in support plate and dynamic sealing plate
With the device, it is usually no more than 200 degree.
Reliable using the pyrolysis oven system run all right of the technical program, using peanut shell as raw material, feed throughput is
28.2kg/h, charcoal yield are 29.3%, fuel gases calorific value 15.3MJ/Nm3, temperature control precision is ± 16 DEG C, every technology
Index has reached system design goal and has required.The exploitation of the pilot test system is that equipment is amplified and Demonstration Application has established base
Plinth.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for turning round pyrolysis oven automatic tightening formula dynamic sealing system on pyrolysis oven.
Fig. 2 is the partial enlarged view of sealing system in Fig. 1.
Fig. 3 is sealing system overlooking structure diagram.
Specific embodiment
For purposes of illustration only, with reference to the accompanying drawing, being done in detail to the revolution pyrolysis oven automatic tightening formula dynamic sealing system of invention
Explanation.
For carburizing temperature generally at 700 DEG C or so, the temperature of dynamic sealing plate is usually no more than 200 in the invention patent use
DEG C, revolving drum revolving speed is generally in 1 ~ 5r/min;Clamping hoop pretightning force general control generally uses resistance in 4 ~ 7 Nm, thermal insulation board
High temperature back-fire relief heat-barrier material, thickness are not less than 20mm in principle;It is secured together by bolt, in such hot environment
Under, the temperature distortion already of common silicone gasket or even melt, the present invention can preferably solve the problems, such as thawing.
As shown in Figure 1 to Figure 3, a kind of revolution pyrolysis oven automatic tightening formula dynamic sealing system, including sealing ring 2, it is described
2 center of sealing ring is connected to dynamic sealing plate 3, is slidably connected between the sealing ring 2 and dynamic sealing plate 3, sets on the sealing ring 2
There is the pretightning force for promoting 2 inner surface of sealing ring Yu 3 outer surface gluing, sealing of dynamic sealing plate;3 bottom of dynamic sealing plate is connected to connection frame
5, thermal insulation board 4 is equipped between the dynamic sealing plate 3 and connection frame 5;It is between the dynamic sealing plate 3, thermal insulation board 4 and connection frame 5
It is fixedly connected;The dynamic sealing plate 3, thermal insulation board 4 or/and connection frame 5 are annular setting, and concentric ring structure is arranged;It is described
2 section of sealing ring is wedge shape, and 2 bottom of sealing ring is equipped with the section being obliquely installed, and further includes the end sleeve being pyrolyzed on furnace body
Cylinder 10, the end sleeve 10 are equipped with the static seal plate 7 for the section cooperation being obliquely installed with sealing ring 2;The static seal plate 7
Be obliquely installed in a ring, 7 bottom of static seal plate, which is equipped with, is used to support the support frame 6 of static seal plate 7, support frame as described above 6 with
End sleeve 10 connects;Pressing device 8 is additionally provided at the top of the sealing ring 2, the pressing device 8 is clamping hoop, the pressure
Hugging hoop and being equipped with is that sealing ring 2 provides the regulating device of pretightning force, and the regulating device is that clip and locking adjust bolt;Institute
5 bottom of connection frame is stated to connect with rotating cylinder 9;The shear-face angle is 37 ± 5 °, the dynamic sealing plate 3, thermal insulation board 4 and connection frame 5
Between be fixedly connected as be bolted;The revolution pyrolysis oven automatic tightening formula dynamic sealing system is turning in symmetrical arrangement
9 two sides of cylinder, are coated with lubricating oil between the sealing ring 2 and quiet, dynamic sealing plate 3, the lubricating oil simultaneously forms one layer of sealing oil film.
The thermal insulation board can be a complete ring structure body design, can also be the ring structure with hollow out,
It is also designed to that Curved plate structure can also be independent with ring structure jaggy, connection frame and dynamic sealing plate is separated, kept away
The high temperature for exempting from connection frame is directly passed to dynamic sealing plate, provides the service life of sealing ring.
In the above-described embodiments, preferred forms of the invention are described, it is obvious that in invention structure of the invention
Under think of, many variations can be still made, here, it should be noted that any change made under inventive concept of the invention all will
It falls within the scope of protection of the present invention.
Claims (8)
1. a kind of revolution pyrolysis oven automatic tightening formula dynamic sealing system, it is characterized in that: including sealing ring (2), the sealing ring (2)
Center is connected to dynamic sealing plate (3), is slidably connected between the sealing ring (2) and dynamic sealing plate (3), on the sealing ring (2)
Equipped with the pretightning force for promoting sealing ring (2) inner surface Yu dynamic sealing plate (3) outer surface gluing, sealing;Sealing ring (2) section
For wedge shape, sealing ring (2) bottom is equipped with the section being obliquely installed, and further includes the end sleeve (10) being pyrolyzed on furnace body, institute
State the static seal plate (7) that end sleeve (10) are equipped with the section cooperation being obliquely installed with sealing ring (2);Dynamic sealing plate (3) bottom
Portion is connected to connection frame (5);Connection frame (5) bottom is connect with rotating cylinder (9).
2. revolution pyrolysis oven automatic tightening formula dynamic sealing system according to claim 1, it is characterized in that the dynamic sealing plate
(3) thermal insulation board (4) are equipped between connection frame (5).
3. revolution pyrolysis oven automatic tightening formula dynamic sealing system according to claim 2, it is characterized in that: the dynamic sealing plate
It (3), is to be fixedly connected between thermal insulation board (4) and connection frame (5).
4. revolution pyrolysis oven automatic tightening formula dynamic sealing system according to claim 2 or 3, it is characterized in that: it is described move it is close
Sealing plate (3), thermal insulation board (4) or/and connection frame (5) are annular setting.
5. revolution pyrolysis oven automatic tightening formula dynamic sealing system according to claim 4, it is characterized in that: the static seal plate
(7) it is obliquely installed in a ring, static seal plate (7) bottom is equipped with the support frame (6) for being used to support static seal plate (7), described
Support frame (6) is connect with end sleeve (10).
6. pyrolysis oven automatic tightening formula dynamic sealing system is turned round according to claim 1 or 5, it is characterized in that: the sealing
It is additionally provided with pressing device (8) at the top of ring (2), the pressing device (8) is clamping hoop, and the clamping hoop is equipped with as sealing
Ring (2) provides the regulating device of pretightning force, and the regulating device is that clip and locking adjust bolt.
7. revolution pyrolysis oven automatic tightening formula dynamic sealing system according to claim 1, it is characterized in that: the shear-face angle
It is 37 ± 5 °, is fixedly connected as being bolted between the dynamic sealing plate (3), thermal insulation board (4) and connection frame (5).
8. revolution pyrolysis oven automatic tightening formula dynamic sealing system according to claim 1, it is characterized in that: the revolution is pyrolyzed
Furnace automatic tightening formula dynamic sealing system in symmetrical arrangement in rotating cylinder (9) two sides, the sealing ring (2) and dynamic sealing plate (3)
Between be coated with lubricating oil, the lubricating oil simultaneously forms one layer of sealing oil film.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710496398.6A CN107143655B (en) | 2017-06-26 | 2017-06-26 | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710496398.6A CN107143655B (en) | 2017-06-26 | 2017-06-26 | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107143655A CN107143655A (en) | 2017-09-08 |
CN107143655B true CN107143655B (en) | 2019-05-17 |
Family
ID=59784254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710496398.6A Active CN107143655B (en) | 2017-06-26 | 2017-06-26 | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107143655B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108468809B (en) * | 2018-04-03 | 2020-04-21 | 农业部规划设计研究院 | Dynamic sealing mechanism and method for continuous pyrolysis of biomass |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN207178693U (en) * | 2017-06-26 | 2018-04-03 | 农业部规划设计研究院 | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10141624A (en) * | 1996-11-14 | 1998-05-29 | Ishikawajima Harima Heavy Ind Co Ltd | Circumferential seal device for rotary grate furnace |
CN202032289U (en) * | 2011-04-15 | 2011-11-09 | 宁波明欣化工机械有限责任公司 | Low temperature thermal insulation shaft sleeve |
CN103470763B (en) * | 2013-09-03 | 2016-01-27 | 南宁广发重工集团有限公司 | A kind of solid of rotation combination sealing arrangement |
CN204329586U (en) * | 2014-11-19 | 2015-05-13 | 徒雨龙 | The V-shaped seal ring hermetically-sealed construction of rotary furnace |
CN204373380U (en) * | 2014-12-04 | 2015-06-03 | 成都昊特新能源技术股份有限公司 | Pyrolysis rotary kiln hermetically-sealed construction |
CN205878897U (en) * | 2016-07-06 | 2017-01-11 | 泰州市华威窑炉设备有限公司 | Rotary kiln seal structure |
CN206113621U (en) * | 2016-08-25 | 2017-04-19 | 中国重型机械研究院股份公司 | Pyrolysis kiln sealing device |
CN206146177U (en) * | 2016-11-09 | 2017-05-03 | 陈实 | Rotary kiln hood sealing device and use this sealing device's rotary kiln |
CN106369167A (en) * | 2016-11-10 | 2017-02-01 | 丹东克隆集团有限责任公司 | Integrated external spring compensation type mechanical sealing device |
CN106482506B (en) * | 2016-12-12 | 2019-12-03 | 朱书红 | Rotary sealing mechanism |
-
2017
- 2017-06-26 CN CN201710496398.6A patent/CN107143655B/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN207178693U (en) * | 2017-06-26 | 2018-04-03 | 农业部规划设计研究院 | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening |
Also Published As
Publication number | Publication date |
---|---|
CN107143655A (en) | 2017-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN2935052Y (en) | Rotary kiln bidirectional sealing device | |
CN107143655B (en) | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening | |
CN103867724A (en) | Multipoint compression high-temperature-resistant dynamic sealing device | |
CN111457719B (en) | Pyrolysis rotary kiln sealing device that floats | |
CN207178693U (en) | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening | |
CN201057337Y (en) | Zero-thrust rotary compensator | |
CN105042078A (en) | High-temperature-resistant and high-pressure-resistant shaft sealing device | |
CN205101559U (en) | Sealing device is used to high temperature resistant high pressure resistant axle | |
CN203756997U (en) | Multi-point hold-down high temperature-resistant dynamic sealing device | |
US20180017176A1 (en) | Multi-position valve and multi-position valve skid thereof | |
CN203656201U (en) | Dynamic seal connecting device for rotary furnace | |
CN204969408U (en) | Scraper blade and use impeller, airlock and pipe tobacco expansion drying machine of this scraper blade | |
CN207364525U (en) | A kind of wear-resisting whirl compensator without acceptance of persons | |
CN204329586U (en) | The V-shaped seal ring hermetically-sealed construction of rotary furnace | |
CN201940260U (en) | Combined seal for end plate of housing of roll crusher | |
CN201140089Y (en) | Slipper cover sealing structure of large-scale slipper tube mill | |
CN202188127U (en) | Containerization type mechanical shaft sealing element and double-end-face shaft sealing element formed by same | |
CN108266235A (en) | Steam turbine shaft end labyrinth casing structure | |
CN103851289B (en) | Large high-temperature chicksan | |
CN205841747U (en) | A kind of contact type dry operating seals | |
CN202402800U (en) | Abnormity nut type floating seal structure for penetrating through casing | |
CN205690433U (en) | A kind of novel power plant coal-burning boiler air preheater radially Air leakage control equipment | |
CN211009930U (en) | Vector sealing valve | |
CN104747853B (en) | Maintenance-free rotary compensator | |
CN209196128U (en) | The horizontal machine of rake type dryer seals |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |