CN106986190A - A kind of sealing airlock - Google Patents
A kind of sealing airlock Download PDFInfo
- Publication number
- CN106986190A CN106986190A CN201710347047.9A CN201710347047A CN106986190A CN 106986190 A CN106986190 A CN 106986190A CN 201710347047 A CN201710347047 A CN 201710347047A CN 106986190 A CN106986190 A CN 106986190A
- Authority
- CN
- China
- Prior art keywords
- shell
- rotating shaft
- impeller
- sealing
- side lid
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
- B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for 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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
-
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of sealing airlock, and it includes shell, impeller；The medium design of the impeller has horizontal rotating shaft, and the impeller is assemblied in the shell, the rotating shaft and the rotatable assembling of the shell；The two ends of the shell are equipped with side lid, the through hole assembled with the rotating shaft is machined with the middle of the side lid, passed sequentially through from outer end to the inner oil immersion packing and the labyrinth bush of the through hole are assembled with the rotating shaft rotatory sealing, the pressing plate for compressing the labyrinth bush is equipped with the inside of the side lid, the inlet end led between the oil immersion packing and labyrinth bush is designed with the outside of the side lid, the inlet end is connected by tracheae with high-pressure gas circuit.Sealing airlock is realized three-layer sealed by the O-ring of oil immersion packing, labyrinth bush and the pressing plate so that the sealing effectiveness of airlock is more preferable, while impeller end cap both sides axial end realizes hermetic seal.
Description
Technical field
The present invention relates to Blowing stopper technical field, and in particular to a kind of sealing airlock.
Background technology
Airlock is also known as Blowing stopper, discharge valve, unloading valve, Star-like unloader.Blowing stopper is Geldart-D particle and dust removal by ventilation
Visual plant in network, its major function is continuously to discharge the material in discharger or deduster in time, simultaneously
Outer air is prevented to enter in discharger or deduster.Blowing stopper mainly includes shell, impeller；The rotating shaft of impeller rotates in shell
Assembling, seals assembling between the edge and outer casing inner wall of the impeller.Airlock can close phoenix device usually for uniform feeding
For being transported to superfine material, traditional airlock due between impeller edge and outer casing inner wall rotatable turn match somebody with somebody, two
There can be gap between person, so that superfine material, which is easily stuck in gap, influences the operation of equipment.Additionally, due to traditional
Impeller blade is uniformly circumferentially distributed on the axis of impeller so that the entrance location of impeller and shell forms larger charging
Cavity, and material has uncertainty when entering import between impeller and shell so that the thing entered between shell and impeller
Material is not uniform enough, so will result in the not uniform enough of the overall feeding of airlock, influence production efficiency and effect.It is traditional in addition
Airlock in feeding process, enclosure usually produces higher pressure so that between enclosure and outside exist compared with
Big pressure, the gas of such enclosure can so easily cause the material from leakage of powdery type to flows outside.And tradition
Airlock it is inside and outside be connected so that outside air is easily accessible enclosure, the material conveyed in shell is caused
Pollution.Traditional airlock is when being safeguarded or changing bearing, it is necessary to first take apart other parts, and operation is more numerous
It is trivial, change more inconvenient.
The content of the invention
For problem above, the present invention provides a kind of simple in construction, and feeding is uniform, is difficult the sealing airlock of material leakage.
The technical solution adopted for the present invention to solve the technical problems is：The sealing airlock includes shell, impeller；Institute
Stating the medium design of impeller has horizontal rotating shaft, and the impeller is assemblied in the shell, and the rotating shaft can revolve with the shell
Turn assembling, the upper and lower side of the shell is respectively designed with charging aperture, discharging opening, and the side of the shell is designed with motor, described
The end of motor is connected by sprocket wheel, chain with the rotating shaft transmission of the impeller；The two ends of the shell are equipped with side lid, described
Be machined with the middle of the lid of side with the rotating shaft assemble through hole, the through hole passed sequentially through from outer end to the inner oil immersion packing and
Labyrinth bush is assembled with the rotating shaft rotatory sealing, and the pressing plate for compressing the labyrinth bush is equipped with the inside of the side lid, described
The centre of pressing plate is assembled by O-ring and rotating shaft rotatory sealing, and the outside of the pressing plate passes through the inner side of O-ring and the side lid
Sealing assembling；The inlet end led between the oil immersion packing and labyrinth bush, the air inlet are designed with the outside of the side lid
End is connected by tracheae with high-pressure gas circuit.
Preferably, rotating shaft of the impeller along level is from left to right designed with the leaflet perpendicular to the rotating shaft successively
Axle blade is circumferentially evenly equipped with along the rotating shaft between piece, leaflet piece described in any two, level is mutually wrong to adjacent axle blade
Position.
Preferably, be machined with front side of the shell on return air inlet of the level to bar shaped, the return air inlet be equipped with by
The return air shell connected inside return air inlet with housing exterior.
Preferably, being equipped with pressure regulator valve on front side of the shell, the high-pressure gas circuit passes through pressure regulator valve and the air inlet
End is connected, and the high-pressure gas circuit accesses the pressure regulator valve by irradiation modules.
Preferably, the outside in lid by the pole of more than two be connected with it is described while the coaxial installation of lid
Bearing holder (housing, cover) is fixedly connected with ring, the mounting ring, the bearing holder (housing, cover) is mutually assembled by bearing with the rotating shaft；The pole phase
It is circumferentially uniform to the rotating shaft.
Preferably, being equipped with bearing gland on the outside of the bearing holder (housing, cover), the both sides of the bearing are respectively fitted with skeleton
Oil sealing.
Preferably, being equipped with spring capping on the inside of the mounting ring, spring is connected with the inside of the spring capping, institute
State and be connected with the check ring held out against on the outside of the oil immersion packing on the inside of spring；The rotating shaft from the spring capping, spring,
Passed through in the middle of check ring.
The beneficial effects of the present invention are：The O that this sealing airlock passes through oil immersion packing, labyrinth bush and the pressing plate
Type circle realizes three-layer sealed so that the sealing effectiveness of airlock more preferably, while the high-pressure gas circuit by the inlet end to
The labyrinth bush position is passed through high pressure gas, and such impeller end cap both sides axial end realizes hermetic seal, coordinates O-ring, and spring is mended
Repay packing compression seal, three roads seal form of different nature, good leak tightness, strong for superfine powder, good fluidity, permeability
Material, the big occasion of the airlock air pressure inside, the occasion of malleation conveying, it is ensured that not material leakage changes the single sealing shape of tradition
Formula.Simultaneously because using non-contacting hermetic seal and compensation packing compression seal, equipment is substantially non-maintaining, for using
Client brings great convenience.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of this sealing airlock.
Fig. 2 is the cross-sectional view of this sealing airlock stereo directional.
Fig. 3 is the dimensional structure diagram of impeller.
Fig. 4 is the dimensional structure diagram of side lid section.
Embodiment
With reference to embodiment, the present invention is further described：
As shown in embodiment in Fig. 1 and Fig. 2, this sealing airlock includes shell 1, impeller 2；The medium design of the impeller 2
There is horizontal rotating shaft 21, the impeller 2 is assemblied in the shell 1, the rotating shaft 21 and the rotatable assembling of the shell.It is described
The upper and lower side of shell 1 is respectively designed with charging aperture, discharging opening, and charging aperture, discharging opening of the shell about 1 pass through flange and other lifes
Equipment is produced to be connected.Material to be transported enters from upper feed inlet, from the output of bottom discharging opening.
The side of the shell 1 is designed with motor 3, and the end of the motor 3 passes through sprocket wheel, chain and the impeller 2
Rotating shaft 21 is connected；Sprocket wheel, chain transmission structure can realize synchronous driving so that the impeller feeding in airlock is more equal
It is even.The two ends of the shell 1 are equipped with the through hole for being machined with and being assembled with the rotating shaft 21 in the middle of side lid 4, the side lid 4, described
Passed sequentially through from outer end to the inner oil immersion packing 5 and the labyrinth bush 6 of through hole are assembled with the rotatory sealing of rotating shaft 21, the side
The inner side of lid 4 is equipped with the pressing plate 61 for compressing the labyrinth bush 6, and the centre of the pressing plate 61 is revolved by O-ring 7 with rotating shaft 21
Turn sealing assembling, the outside of the pressing plate 61 is assembled by the inner seal of O-ring 7 and the side lid 4；Outside the side lid 4
Side is designed with the inlet end 41 for leading to the position of labyrinth bush 6, and the inlet end 41 is connected by tracheae with high-pressure gas circuit.
This sealing airlock is realized three-layer sealed by the O-ring of oil immersion packing, labyrinth bush and the pressing plate, is made
The sealing effectiveness for obtaining airlock is more preferable, while the high-pressure gas circuit is passed through height by the inlet end to the position of labyrinth bush 6
Calm the anger, high pressure gas can flow out from the both sides of labyrinth bush 6, can outwards be blown from oil immersion packing 5 to the high pressure gas of the outside of labyrinth bush 6 outflow
Go out, can be blown into the high pressure gas of the inner side of labyrinth bush 6 outflow inside the part watt gram 1 of pressing plate 61, the so described end cap both sides of impeller 2
Axial end realizes hermetic seal, can prevent thinner powder from being flowed out from the inside of shell 1, be also possible to prevent the dust outside airlock
Enter from the both sides shaft end of impeller 2 in shell 1.This air-tight structure coordinates O-ring 7, elastic compensating packing compression seal, three roads
Seal form of different nature, good leak tightness, for the strong material of superfine powder, good fluidity, permeability, airlock inside gas
The big occasion of pressure, the occasion of malleation conveying, it is ensured that not material leakage, change the single seal form of tradition.Simultaneously because being connect using non-
Tactile hermetic seal and compensation packing compression seal, equipment are substantially non-maintaining, for bringing great convenience using client.
As shown in Figures 2 and 3, rotating shaft 21 of the impeller 2 along level is from left to right designed with perpendicular to described turn successively
Be evenly equipped with axle blade 23 along the rotating shaft 21 is circumferential between the leaflet piece 22 of axle 21, leaflet piece 22 described in any two, level to
The adjacent mutual dislocation of axle blade 23.Such design to initially enter leaflet from the material that the upper feed inlet of shell 1 is flowed into
Sub-material chamber between piece 22 and axle blade 23, because the dislocation of the axle blade 23 is designed so that the sub-material chamber is also dislocation
Arrangement, the material so entered from upper feed inlet is first dispersed to each sub-material intracavitary, and in charging, charging it is uneven
The mainly cross blade of impeller 2, enters that material that gating location drops is erratic to be caused, and in the structure shown here, often
The secondary material dropped in big impeller 2 can all respectively enter the sub-material chamber of dislocation, and due to dislocation reason, adjacent material cavity can't be same
Material is walked out of, the fluctuation of unit discharging can be thus substantially reduced.So that airlock discharging is more uniform.
In specific design, as shown in figure 1, the front side of the shell 1 is machined with return air inlet of the level to bar shaped, described time
It is equipped with the return air shell 11 inside return air inlet with the ft connection of shell 1, the upper design air outlet of return air shell 11 on air port,
Impeller 2 in the shell 1 is turned clockwise, and the return air shell 11 of the return air inlet is connected with the position of impeller 2 after discharging, this
When, the pressure that return air shell 11 can be in the balanced impeller 2 prevents when impeller 2 from rotating to charging aperture existing with gating location
Pressure differential, can so prevent pressure differential from causing material to be neglected slowly soon suddenly what gating location was fed, the charging of the airlock is more
Plus it is uniform.
In specific design, as shown in figure 1, the front side of the shell 1 is equipped with pressure regulator valve 12, the high-pressure gas circuit passes through
Pressure regulator valve 12 is connected with the inlet end 41, and the high-pressure gas circuit accesses the pressure regulator valve 12 by irradiation modules.Pass through pressure regulation
The user of valve 12 can easily check out its admission pressure of high pressure, the pressure difference inside and outside convenient control airlock, and described
The design of irradiation modules so that the gas entered in the shell 1 is all in drying regime, so in airlock feeding process
In, the pollution of material is not resulted in, using effect is more preferable.
In specific design, as shown in Figure 2 and Figure 4, the outside of the side lid 4 is axially stretched by the pole 42 of more than two
Go out to be connected with and be fixedly connected with bearing holder (housing, cover) 44, the bearing holder (housing, cover) in the mounting ring 43 coaxial with the side lid 4, the mounting ring 43
44 are mutually assembled by bearing 8 with the rotating shaft 21；The relatively described rotating shaft 21 of the pole 42 is circumferential uniform.So in the Blowing stopper
In, main revolving part bearing 8 only passes through closure elements away from the shell 1 and side lid 4 between side lid 4 and rotating shaft 21
Contact, main stress when so described impeller 2 rotates is concentrated on the bearing 8, so that the closing member of the Blowing stopper
Part stress equalization, weares and teares smaller, service life is longer.Simultaneously because revolving part bearing 8 is outside by pole 42 and mounting ring 43
Stretch out, be more prone to change when bearing 8 weares and teares, when safeguarding or changing bearing 8.Miscellaneous part need not be removed, is only needed
It can carry out changing bearing 8 with bolt ejection bearing block.Safeguard enhanced convenience.
In specific design, as shown in Fig. 2 the outside of the bearing holder (housing, cover) 44 is equipped with bearing gland 45, the bearing 8
Both sides are respectively fitted with outside framework oil seal 81.One outside framework oil seal 81 is assemblied on the bearing gland 45, an outside framework oil seal 81
It is assemblied in the bearing holder (housing, cover) 44, lubricating oil can be enclosed in the bearing 8 by two outside framework oil seals 81 so that the bearing
Frictional force during 8 work is smaller, and service life is longer.
In specific design, as shown in Fig. 2 the inner side of the mounting ring 43 is equipped with spring capping 48, the spring pressure
The inner side of lid 48 is connected with spring 46, and the inner side of spring 46 is connected with the check ring 47 held out against in the outside of oil immersion packing 5；
The rotating shaft 21 is passed through in the middle of the spring capping 48, spring 46, check ring 47.The spring capping 48, spring 46, bullet
Spring back-up ring 47 is assembled with the gap of rotating shaft 21, when the airlock works, and the spring capping 48 is consolidated with the mounting ring 43
Fixed connection, the spring 46 is in impaction state, and the oil immersion packing 5 is made using elastomeric material, and the check ring 47 is pushed up
The tight oil immersion packing 5, the at this moment generation of oil immersion packing 5 elastic deformation, can to seal effect between the side lid 4 and rotating shaft 21
Fruit is more preferably.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (7)
1. a kind of sealing airlock, it includes shell（1）, impeller（2）；The impeller（2）Medium design have horizontal turn
Axle（21）, the impeller（2）It is assemblied in the shell（1）It is interior, the rotating shaft（21）With the rotatable assembling of the shell, it is described outer
Shell（1）Upper and lower side be respectively designed with charging aperture, discharging opening, the shell（1）Side be designed with motor（3）, the motor
（3）End pass through sprocket wheel, chain and the impeller（2）Rotating shaft（21）Drive connection；It is characterized in that：The shell（1）
Two ends be equipped with side lid（4）, the side lid（4）Centre is machined with and the rotating shaft（21）The through hole of assembling, the through hole
Oil immersion packing is passed sequentially through from outer end to the inner（5）And labyrinth bush（6）With the rotating shaft（21）Rotatory sealing is assembled, the side
Lid（4）Inner side be equipped with the labyrinth bush（6）The pressing plate of compression（61）, the pressing plate（61）Centre pass through O-ring（7）
With rotating shaft（21）Rotatory sealing is assembled, the pressing plate（61）Outside pass through O-ring（7）With the side lid（4）Inner seal
Assembling；The side lid（4）Outside be designed with and lead to labyrinth bush（6）The inlet end of position（41）, the inlet end（41）Pass through
Tracheae is connected with high-pressure gas circuit.
2. sealing airlock according to claim 1, it is characterised in that：The impeller（2）Along the rotating shaft of level（21）
From left to right it is designed with successively perpendicular to the rotating shaft（21）Leaflet piece（22）, leaflet piece described in any two（22）Between edge
The rotating shaft（21）Circumferentially it is evenly equipped with axle blade（23）, level is to adjacent axle blade（23）Mutual dislocation.
3. sealing airlock according to claim 1, it is characterised in that：The shell（1）Front side be machined with level
To the return air inlet of bar shaped, it is equipped with return air inlet inside and shell on the return air inlet（1）The return air shell of ft connection（11）.
4. sealing airlock according to claim 1, it is characterised in that：The shell（1）Front side be equipped with pressure regulation
Valve（12）, the high-pressure gas circuit passes through pressure regulator valve（12）With the inlet end（41）It is connected, the high-pressure gas circuit passes through drying mould
Block accesses the pressure regulator valve（12）.
5. sealing airlock according to claim 1, it is characterised in that：The side lid（4）Outside by two with
On pole（42）It is connected with and the side lid（4）Coaxial mounting ring（43）, the mounting ring（43）On be fixedly connected with axle
Bearing sleeve（44）, the bearing holder (housing, cover)（44）Pass through bearing（8）With the rotating shaft（21）Mutually assemble；The pole（42）Described turn relatively
Axle（21）It is circumferential uniform.
6. sealing airlock according to claim 5, it is characterised in that：The bearing holder (housing, cover)（44）Outside be equipped with axle
Pressure cap（45）, the bearing（8）Both sides be respectively fitted with outside framework oil seal（81）.
7. sealing airlock according to claim 5, it is characterised in that：The mounting ring（43）Inner side be equipped with bullet
Spring gland（48）, the spring capping（48）Inner side is connected with spring（46）, the spring（46）Inner side, which is connected with, to be held out against in institute
State oil immersion packing（5）The check ring in outside（47）；The rotating shaft（21）From the spring capping（48）, spring（46）, spring
Back-up ring（47）Centre is passed through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347047.9A CN106986190B (en) | 2017-05-16 | 2017-05-16 | Sealing air seal machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710347047.9A CN106986190B (en) | 2017-05-16 | 2017-05-16 | Sealing air seal machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106986190A true CN106986190A (en) | 2017-07-28 |
| CN106986190B CN106986190B (en) | 2022-12-27 |
Family
ID=59420055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710347047.9A Active CN106986190B (en) | 2017-05-16 | 2017-05-16 | Sealing air seal machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106986190B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095187A (en) * | 2018-08-01 | 2018-12-28 | 常州信息职业技术学院 | A kind of chain transmission type Blowing stopper of easy access |
| CN109095188A (en) * | 2018-08-02 | 2018-12-28 | 常州信息职业技术学院 | A kind of electric lock pneumatic device formula Blowing stopper with damping performance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19537429A1 (en) * | 1995-10-07 | 1997-04-17 | Jaudt Dosiertechnik Maschinenf | Cellular wheel sluice |
| CN2371196Y (en) * | 1999-05-27 | 2000-03-29 | 刘东业 | Equipment for desulfurating of molten iron by single blasting gasified granular magnesium |
| CN201873283U (en) * | 2010-11-10 | 2011-06-22 | 白银有色集团股份有限公司 | Shaft end sealing device of spiral conveyer |
| CN103925373A (en) * | 2014-04-30 | 2014-07-16 | 湖北新置密封件有限公司 | Labyrinth type halt two-way sealing device |
| CN204872903U (en) * | 2015-07-10 | 2015-12-16 | 合肥旭龙机械有限公司 | Atmoseal formula high pressure rotary feeder |
| CN206735368U (en) * | 2017-05-16 | 2017-12-12 | 常州市科协减速机制造有限公司 | A kind of sealing airlock |
-
2017
- 2017-05-16 CN CN201710347047.9A patent/CN106986190B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19537429A1 (en) * | 1995-10-07 | 1997-04-17 | Jaudt Dosiertechnik Maschinenf | Cellular wheel sluice |
| CN2371196Y (en) * | 1999-05-27 | 2000-03-29 | 刘东业 | Equipment for desulfurating of molten iron by single blasting gasified granular magnesium |
| CN201873283U (en) * | 2010-11-10 | 2011-06-22 | 白银有色集团股份有限公司 | Shaft end sealing device of spiral conveyer |
| CN103925373A (en) * | 2014-04-30 | 2014-07-16 | 湖北新置密封件有限公司 | Labyrinth type halt two-way sealing device |
| CN204872903U (en) * | 2015-07-10 | 2015-12-16 | 合肥旭龙机械有限公司 | Atmoseal formula high pressure rotary feeder |
| CN206735368U (en) * | 2017-05-16 | 2017-12-12 | 常州市科协减速机制造有限公司 | A kind of sealing airlock |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095187A (en) * | 2018-08-01 | 2018-12-28 | 常州信息职业技术学院 | A kind of chain transmission type Blowing stopper of easy access |
| CN109095188A (en) * | 2018-08-02 | 2018-12-28 | 常州信息职业技术学院 | A kind of electric lock pneumatic device formula Blowing stopper with damping performance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106986190B (en) | 2022-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206735368U (en) | A kind of sealing airlock | |
| CN106986190A (en) | A kind of sealing airlock | |
| US3574411A (en) | Side inlet rotary valve | |
| CN102583059A (en) | Suspended type gas locking discharge valve | |
| CN104790983B (en) | A kind of vane type wet-spraying machine | |
| CN206327911U (en) | A kind of intelligence injection airlock | |
| CN104595565A (en) | Star-shaped cinder valve for mine dust collector | |
| CN107882768B (en) | A kind of unsteady flow sealing control method and its device | |
| CN208331008U (en) | A kind of bearing block dustproof construction | |
| CN101782083B (en) | Sealing device for fan | |
| CN211310201U (en) | Novel rotary valve for discharging sanding powder | |
| CN202054399U (en) | Screw type cinder valve | |
| CN105173786A (en) | Rotary feeder sealed through air curtains | |
| CN208070690U (en) | A kind of screw conveyor | |
| CN204552769U (en) | A kind of vane type wet-spraying machine | |
| CN209113111U (en) | High airproof airlock | |
| CN104743328B (en) | High airproof discharge gate | |
| CN207791889U (en) | A kind of powder conveying apparatus | |
| CN208499772U (en) | Wind-force feeder | |
| CN109630419B (en) | Leakage-free pump for removing particles | |
| CN207759566U (en) | Screw conveyor | |
| CN106089633A (en) | A kind of all-sealed efficient mini compressor | |
| CN201737472U (en) | Rotor type powder adding device | |
| CN207777054U (en) | A kind of integrated liquid energy recycle device | |
| CN109772567A (en) | A kind of discharge device of lock wind revolution feeding equipment |
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 |