CN208373354U - The discharging hole closing device of lower unloader knife centrifuge - Google Patents
The discharging hole closing device of lower unloader knife centrifuge Download PDFInfo
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- CN208373354U CN208373354U CN201820559411.8U CN201820559411U CN208373354U CN 208373354 U CN208373354 U CN 208373354U CN 201820559411 U CN201820559411 U CN 201820559411U CN 208373354 U CN208373354 U CN 208373354U
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- lifting shaft
- lifting
- shaft
- gas circuit
- rotary drum
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Abstract
The utility model relates to arrive a kind of discharging hole closing device of lower unloader knife centrifuge, the lifting drive moved axially including being co-axially located at the lifting shaft for being only capable of moving axially in centrifuge principal axis along main shaft and driving lifting shaft along main shaft, one end of lifting shaft towards bowl is pierced by main-axis end and protrudes into rotary drum inner cavity and be coaxially connected with cone barrel closed cap, the back cut diameter of closed cap is less than lower port diameter, the suitable for reading and lifting shaft of closed cap is sealedly and fixedly connected, when lifting shaft drops to bottom, it is tight-lipped under closed cap to be against on rotary drum inner bottom surface and cover all dumping pits.When rotary drum work, the closed cap of cone barrel covers dumping pit, and in this way during charging, there will be no materials to leak out from dumping pit, to overcome material leakage problem, improves separating effect.
Description
Technical field:
The utility model relates to a kind of discharging hole closing devices of lower unloader knife centrifuge.
Background technique:
It is provided with dumping pit on the rotary drum bottom of lower discharging centrifuge, these dumping pits are usually not when rotary drum operates
It is closed, therefore when charging, there is the phenomenon that material not being separated by solid-liquid separation is directly leaked out from dumping pit, reduces
Separating effect.
Utility model content:
The technical problem to be solved by the utility model is to provide one kind to unload when rotary drum is operated by dumping pit is closed
Expect hole closing device.
In order to solve the above technical problems, the technical solution adopted in the utility model is: the discharging of lower unloader knife centrifuge
Hole closing device, can be along the lifting shaft and driving lifting shaft edge that main shaft moves axially including being co-axially located in centrifuge principal axis
The lifting drive of main shaft axial movement, one end of lifting shaft towards bowl is pierced by main-axis end and protrudes into rotary drum inner cavity
And it is coaxially connected with cone barrel closed cap, the back cut diameter of closed cap is less than lower port diameter, and the suitable for reading and lifting shaft of closed cap is close
Envelope is fixedly connected, tight-lipped under closed cap to be against on rotary drum inner bottom surface and by all discharging escutcheons when lifting shaft drops to bottom
Firmly, axially extending main gas circuit is provided in lifting shaft, main gas circuit forms air inlet in the lower end of lifting shaft and connects by rotation
Head is connected with air connector, the upper end closed of main gas circuit, and lifting shaft upper level is provided with several root diameters to being communicated to main gas circuit
Branch gas circuit, each branch gas circuit forms opening on lifting shaft side wall, is connected in the closed cap one-to-one with branch gas circuit
Bronchus, the opening of bronchial one end and corresponding branch gas circuit, which seals, docks, and the other end extends near rotary drum inner sidewall, and turns
Drum inner sidewall is opposite, for purging the remaining filter cake on rotary drum inner sidewall.
As a preferred embodiment, a guide ring, the outside of guide ring are also fixedly connected on the rotary drum inner bottom surface
Face is bonded with rotary drum inner sidewall, and the internal diameter of guide ring is gradually reduced downwards from upper end, forms guide ring medial surface inclined close
Cover.
As a preferred embodiment, mouth is connected with a closed-loop under the closed cap, and the outer diameter of closed-loop, which is not less than, leads
Expect the internal diameter of ring, is provided with the binding face parallel with sealing surface in closed-loop, binding face is opposite with sealing surface, sealing surface or fitting
An annular seal groove centered on main shaft is offered on face, seal groove is located at the area that sealing surface and binding face contact with each other
Domain is embedded with the first sealing ring in seal groove.
As a preferred embodiment, closed cap is suitable for reading is sealedly connected with a flange, and flange is fixedly connected on lifting shaft
Shaft end offers the blind hole with lifting shaft cooperation on flange bottom, and lifting shaft upper end is inserted into blind hole, blind hole side wall and lifting shaft
There is gap, blind hole oral area is tightly connected by the second sealing ring and lifting shaft, the blind hole above the second sealing ring between outer wall
Closed annular air cavity is formed, the opening that the branch gas circuit is formed on lifting shaft side wall is located in air cavity, is provided in flange
The more transition gas circuits being connected to air cavity, one end of transition gas circuit form opening on the blind hole side wall in air cavity, the other end exists
The lower end of flange forms opening, and the bronchus and transition gas circuit correspond, bronchus close to lifting shaft one end with it is corresponding
The opening sealing docking that transition gas circuit is formed in flange lower end.
As a preferred embodiment, more axially extending reinforcing ribs are circumferentially evenly equipped on the closed cap medial surface, added
Strengthening tendons upper end and flanged joint, lower end are connect with closed-loop.
As a preferred embodiment, closed cap upper end outer rim is circumferentially evenly equipped with multiple scraper peaces extended along sealing surface
It shelves, the doctor assemblies of centrifuge are mounted on correspondingly on scraper mounting rack, and the bronchus is pacified along closed cap and scraper
It shelves and extends to below doctor assemblies.
As a preferred embodiment, the guide ring and bowl bottom are integrally formed.
As a preferred embodiment, one end of the lifting shaft back to rotary drum is provided with external thread section, and external thread section is at least
There is part to stretch out outside main shaft, the lifting drive includes lifting motor, the lifting that is fixedly connected in lifting motor shaft
Driving wheel, the inner screw sheath being threaded on lifting shaft external thread section, the lifting being fixedly attached to by key on inner screw sheath
Follower and for connect lifting driving wheel and go up and down follower belt, the inner screw sheath by coaxial bearing rotation
It is connected to the follower for driving spindle rotation.
The beneficial effects of the utility model are: the closed cap of cone barrel covers dumping pit, in this way when rotary drum work
During charging, there will be no materials to leak out from dumping pit, to overcome material leakage problem, improves separating effect, together
When, it is supplied by the main gas circuit being arranged in lifting shaft to bronchus, rotary drum inner sidewall is purged, improve the remaining filter of removal
The effect of cake, and rotary drum inner sidewall can be cleaned to bronchus water supply by main gas circuit, and by main gas circuit to branch
Nitrogen intratracheally is poured to completely cut off air, meets the working condition of anaerobic.
Detailed description of the invention:
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the structural representation for applying discharging hole closing device described in the utility model and being in dumping pit closed state
Figure；
Fig. 2 is the portion the A enlarged drawing in Fig. 1；
Fig. 3 is the portion the B enlarged drawing in Fig. 2；
Fig. 4 is the structural representation for applying discharging hole closing device described in the utility model and being in dumping pit opening state
Figure.
In FIG. 1 to FIG. 4: 1, main shaft, 2, lifting shaft, 3, lifting drive, 3-1, lifting motor, 3-2, inner screw sheath,
3-3, lifting follower, 3-4, belt, 3-5, lifting driving wheel, 3-6, bearing, 4, rotary drum, 4-1, rotary drum bottom, 5, closed cap,
6, dumping pit, 7, guide ring, 8, sealing surface, 9, closed-loop, 10, binding face, 11, seal groove, the 12, first sealing ring, 13, method
Orchid, 14, reinforcing rib, 15, doctor assemblies, 16, follower, 17, main drive motor, 18, main gas circuit, 19, rotary joint, 20, confession
Gas connector, 21, branch gas circuit, 22, bronchus, 23, transition gas circuit, 24, scraper mounting rack, the 25, second sealing ring, 26, air cavity.
Specific embodiment:
With reference to the accompanying drawing, the specific embodiment of the utility model is described in detail.
As shown in Figure 1 to 4, the discharging hole closing device of lower unloader knife centrifuge, including it is co-axially located at centrifuge
The lifting driving dress that the lifting shaft 2 and driving lifting shaft 2 that can be moved axially along main shaft 1 in main shaft 1 are moved axially along main shaft 1
3 are set, one end of lifting shaft 2 towards bowl 4 is pierced by 1 shaft end of main shaft and protrudes into 4 inner cavity of rotary drum and be coaxially connected with cone barrel
The back cut diameter of closed cap 5, closed cap 5 is less than lower port diameter, and the suitable for reading and lifting shaft 2 of closed cap 5 is sealedly and fixedly connected, and works as liter
It is tight-lipped under closed cap 5 to be against on 4 inner bottom surface of rotary drum and cover all dumping pits 6, lifting shaft 2 when drop axis 2 drops to bottom
It is inside provided with axially extending main gas circuit 18, main gas circuit 18 forms air inlet in the lower end of lifting shaft 2 and passes through rotary joint 19
It is connected with air connector 20, the upper end closed of main gas circuit 18,2 upper level of lifting shaft is provided with several root diameters to being communicated to main gas
The branch gas circuit 21 on road 18, each branch gas circuit 21 form opening on 2 side wall of lifting shaft, are connected with and branch gas circuit in the closed cap 5
21 one-to-one bronchuses 22, one end of bronchus 22 seal with the opening of corresponding branch gas circuit 21 and dock, and the other end extends to
It is opposite with 4 inner sidewall of rotary drum near 4 inner sidewall of rotary drum, for purging the remaining filter cake on 4 inner sidewall of rotary drum.
When rotary drum 4 works, the closed cap of cone barrel covers dumping pit 6, in this way during charging, there will be no
Material is leaked out from dumping pit, to overcome material leakage problem, improves separating effect.Meanwhile by being arranged in lifting shaft 2
Main gas circuit 18 supplied to bronchus 22,4 inner sidewall of rotary drum is purged, improves the effect for removing remaining filter cake, and can
4 inner sidewall of rotary drum is cleaned to the water supply of bronchus 22 by main gas circuit 18, and through main gas circuit 18 into bronchus 22
Nitrogen is poured to completely cut off air, meets the working condition of anaerobic.
A guide ring 7, the lateral surface and 4 inner sidewall of rotary drum of guide ring 7 are also fixedly connected on 4 inner bottom surface of rotary drum
Fitting, the internal diameter of guide ring 7 are gradually reduced downwards from upper end, and 7 medial surface of guide ring is made to form inclined sealing surface 8.
Inclined sealing surface 8 helps to scatter to be slipped in dumping pit 6 automatically in the material on sealing surface 8.
The lower mouth of the closed cap 5 is connected with a closed-loop 9, and the outer diameter of closed-loop 9 is not less than the internal diameter of guide ring 7, envelope
The binding face 10 parallel with sealing surface 8 is provided in closed loop 9, binding face 10 and sealing surface 8 are opposite, sealing surface 8 or binding face 10
On offer an annular seal groove 11 centered on main shaft 1, seal groove 11 is located at sealing surface 8 and binding face 10 contacts with each other
Region, being embedded with the first sealing ring 12 in seal groove 11 prevents liquid to further increase the closure effect of closing device
The material leakage of material happens.
Closed cap 5 is suitable for reading to be sealedly connected with a flange 13, and flange 13 is fixedly connected on the shaft end of lifting shaft 2, passes through method
Orchid connection, it is simple and quick, securely and reliably, and replace conveniently.The blind hole cooperated with lifting shaft 2 is offered on 13 bottom surface of flange, is risen
It drops in 2 upper end of axis insertion blind hole, there is gap between blind hole side wall and lifting shaft outer wall, blind hole oral area passes through the second sealing ring
25 are tightly connected with lifting shaft 2, and the blind hole of 25 top of the second sealing ring forms closed annular air cavity 26, the branch gas circuit 21
The opening formed on 2 side wall of lifting shaft is located in air cavity 26, and the more transitional gas being connected to air cavity 26 are provided in flange 13
Road 23, one end of transition gas circuit 23 form opening on the blind hole side wall in air cavity 26, and the other end is formed in the lower end of flange 13
Opening, the bronchus 22 are corresponded with transition gas circuit 23, one end and corresponding transition gas circuit of the bronchus 22 close to lifting shaft 2
23 seal docking in the opening that 13 lower end of flange is formed.
The connectivity structure that bronchus 22 Yu branch gas circuit 21 can be simplified in this way facilitates mutually interconnection of the bronchus 22 with branch gas circuit 21
It is logical, while reducing the processing cost of lifting shaft 2.
More axially extending reinforcing ribs 14,14 upper end of reinforcing rib and method are circumferentially evenly equipped on 5 medial surface of closed cap
Orchid 13 connects, and lower end is connect with closed-loop 9, greatly improves the intensity of closed cap 5.
The 5 upper end outer rim of closed cap is circumferentially evenly equipped with multiple scraper mounting racks 24 extended along sealing surface 8, centrifuge
Doctor assemblies 15 are mounted on correspondingly on scraper mounting rack 24, and the bronchus 22 is along closed cap 5 and scraper mounting rack 24
The lower section of doctor assemblies 15 is extended to, not only simplifies the mounting structure of doctor assemblies, while by bronchus 22 and 15 phase of doctor assemblies
Cooperation further increases the effect for removing filter cake.
The guide ring 7 and bowl bottom 4-1 are integrally formed, reduce production and processing cost.
One end of lifting shaft 2 back to the rotary drum 4 is provided with external thread section 2-1, and external thread section 2-1 at least partially stretches out
Outside main shaft 1, the lifting drive 3 includes lifting motor 3-1, the lifting master being fixedly connected in lifting motor 3-1 shaft
Driving wheel 3-5, the inner screw sheath 3-2 being threaded on 2 external thread section 2-1 of lifting shaft, inner screw sheath is fixedly attached to by key
Lifting follower 3-3 on 3-2 and for connecting lifting driving wheel 3-5 and going up and down the belt 3-4 of follower 3-3, it is described in
Thread bush 3-2 rotates coaxially the follower 16 for being connected to and rotating for driving spindle 1 by bearing 3-6.
Above-mentioned inner screw sheath 3-2 can be used differential mechanism and be replaced.
Lifting drive 3 in the utility model can also be hydraulic cylinder, but preferably lifting motor 3-1, using lifting
Motor 3-1 drives the lifting of lifting shaft 2, more simpler than carrying out driving structure using hydraulic device.
Utility model works process is: as shown in Figure 1 to 4, before rotary drum starting, first passing through lifting motor 3-1
It drives lifting shaft 2 to decline, until closed-loop 9 and guide ring 7 seal against, then starts the main drive motor 17 of centrifuge, and
It controls lifting motor 3-1 and main drive motor 17 rotates synchronously, so that closed cap 5 steadily covers dumping pit 6, avoid leaking
Expect phenomenon.
In order to increase the closure effect of closing device, the slightly above main driving that can adjust the revolving speed of lifting motor 3-1 is electric
The revolving speed of machine 17, such lifting motor 3-1 can apply a downward pulling force to lifting shaft 2, and lifting shaft 2 makes to seal under the pulling force
Closed loop 9 fits tightly on guide ring 7, improves sealing effect.
After rotary drum work, lifting motor 3-1 and the revolving speed of main drive motor 17 synchronize drop to a specific rotation speeds
Afterwards, make the revolving speed of lifting motor 3-1 lower than main shaft 1, so that lifting shaft 2 is rotated relative to inner screw sheath 3-2, go up and down in this way
Axis 2 can be gradually increasing, and closed-loop 9 is detached from guide ring 7, and dumping pit 6 is opened, and at this moment can carry out scraper discharging.
The principles and effects of the utility model creation, and the implementation that part uses only is illustrated in above-described embodiment
Example, rather than limits the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from this reality
Under the premise of with novel concept, various modifications and improvements can be made, these belong to the protection model of the utility model
It encloses.
Claims (8)
1. the discharging hole closing device of lower unloader knife centrifuge, which is characterized in that including being co-axially located at centrifuge principal axis (1)
The lifting driving that the interior lifting shaft (2) that can be moved axially along main shaft (1) and driving lifting shaft (2) are moved axially along main shaft (1)
Device (3), one end of lifting shaft (2) towards bowl (4) are pierced by main shaft (1) shaft end and protrude into rotary drum (4) inner cavity and coaxial
It is connected with cone barrel closed cap (5), the back cut diameter of closed cap (5) is less than lower port diameter, the suitable for reading and lifting shaft of closed cap (5)
(2) it is sealedly and fixedly connected, it is tight-lipped under closed cap (5) to be against on rotary drum (4) inner bottom surface simultaneously when lifting shaft (2) drops to bottom
All dumping pits (6) are covered, are provided with axially extending main gas circuit (18) in lifting shaft (2), main gas circuit (18) is in lifting shaft
(2) lower end forms air inlet and is connected with air connector (20) by rotary joint (19), the upper end closed of main gas circuit (18),
Lifting shaft (2) upper level is provided with several root diameters to the branch gas circuit (21) for being communicated to main gas circuit (18), and each branch gas circuit (21) exists
Opening is formed on lifting shaft (2) side wall, is connected with and branch gas circuit (21) one-to-one bronchus on the closed cap (5)
(22), one end of bronchus (22) seals with the opening of corresponding branch gas circuit (21) and docks, and the other end extends to rotary drum (4) inner sidewall
Near, it is opposite with rotary drum (4) inner sidewall, for purging the remaining filter cake on rotary drum (4) inner sidewall.
2. the discharging hole closing device of lower unloader knife centrifuge according to claim 1, which is characterized in that the rotary drum
(4) guide ring (7) is also fixedly connected on inner bottom surface, the lateral surface of guide ring (7) is bonded with rotary drum (4) inner sidewall, leads
The internal diameter of material ring (7) is gradually reduced downwards from upper end, and guide ring (7) medial surface is made to form inclined sealing surface (8).
3. the discharging hole closing device of lower unloader knife centrifuge according to claim 2, which is characterized in that the closure
Mouth is connected with a closed-loop (9) under cover (5), and the outer diameter of closed-loop (9) is not less than the internal diameter of guide ring (7), in closed-loop (9)
Be provided with the binding face parallel with sealing surface (8) (10), binding face (10) and sealing surface (8) relatively, sealing surface (8) or binding face
(10) annular seal groove (11) centered on main shaft (1) is offered on, seal groove (11) is located at sealing surface (8) and fitting
The region that face (10) contacts with each other, seal groove (11) is interior to be embedded with the first sealing ring (12).
4. the discharging hole closing device of lower unloader knife centrifuge according to claim 3, which is characterized in that closed cap
(5) suitable for reading to be sealedly connected with a flange (13), flange (13) is fixedly connected on the shaft end of lifting shaft (2), flange (13) bottom surface
On offer blind hole with lifting shaft (2) cooperation, lifting shaft (2) upper end is inserted into blind hole, blind hole side wall and lifting shaft outer wall it
Between there is gap, blind hole oral area is tightly connected by the second sealing ring (25) and lifting shaft (2), above the second sealing ring (25)
Blind hole is formed closed annular air cavity (26), and the opening that the branch gas circuit (21) is formed on lifting shaft (2) side wall is located at air cavity
(26) in, the more transition gas circuits (23) being connected to air cavity (26) are provided in flange (13), one end of transition gas circuit (23) exists
Opening is formed on blind hole side wall in air cavity (26), the other end forms opening, the bronchus (22) in the lower end of flange (13)
It is corresponded with transition gas circuit (23), bronchus (22) is close to one end of lifting shaft (2) with corresponding transition gas circuit (23) in flange
(13) opening that lower end is formed seals docking.
5. the discharging hole closing device of lower unloader knife centrifuge according to claim 4, which is characterized in that the closure
More axially extending reinforcing ribs (14) are circumferentially evenly equipped on cover (5) medial surface, reinforcing rib (14) upper end is connect with flange (13),
Lower end is connect with closed-loop (9).
6. the discharging hole closing device of lower unloader knife centrifuge according to claim 4, which is characterized in that the closure
Cover (5) upper end outer rim is circumferentially evenly equipped with multiple scraper mounting racks (24) extended along sealing surface (8), the doctor assemblies of centrifuge
(15) it is mounted on correspondingly on scraper mounting rack (24), the bronchus (22) is along closed cap (5) and scraper mounting rack
(24) it extends to below doctor assemblies (15).
7. the discharging hole closing device of lower unloader knife centrifuge according to claim 6, which is characterized in that the guide
Ring (7) and bowl bottom (4-1) are integrally formed.
8. the discharging hole closing device of any lower unloader knife centrifuge according to claim 1~7, which is characterized in that
One end of lifting shaft (2) back to the rotary drum (4) is provided with external thread section (2-1), and external thread section (2-1) at least part is stretched out
Outside, the lifting drive (3) includes lifting motor (3-1), is fixedly connected in lifting motor (3-1) shaft main shaft (1)
Lifting driving wheel (3-5), the inner screw sheath (3-2), solid by key that is threaded on lifting shaft (2) external thread section (2-1)
Surely the lifting follower (3-3) that is socketed on inner screw sheath (3-2) and for connecting lifting driving wheel (3-5) and going up and down quilt
The belt (3-4) of driving wheel (3-3), the inner screw sheath (3-2) are rotated coaxially by bearing (3-6) and are connected to for driving spindle
(1) on the follower (16) rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559411.8U CN208373354U (en) | 2018-04-19 | 2018-04-19 | The discharging hole closing device of lower unloader knife centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820559411.8U CN208373354U (en) | 2018-04-19 | 2018-04-19 | The discharging hole closing device of lower unloader knife centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208373354U true CN208373354U (en) | 2019-01-15 |
Family
ID=64976114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820559411.8U Expired - Fee Related CN208373354U (en) | 2018-04-19 | 2018-04-19 | The discharging hole closing device of lower unloader knife centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208373354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108499754A (en) * | 2018-04-19 | 2018-09-07 | 苏州盛天力离心机制造有限公司 | The discharging hole closing device of lower unloader knife centrifuge |
-
2018
- 2018-04-19 CN CN201820559411.8U patent/CN208373354U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108499754A (en) * | 2018-04-19 | 2018-09-07 | 苏州盛天力离心机制造有限公司 | The discharging hole closing device of lower unloader knife centrifuge |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190115 Termination date: 20210419 |