CN209438824U - A kind of rotary drum being exclusively used in sludge Dewatering Centrifuge - Google Patents
A kind of rotary drum being exclusively used in sludge Dewatering Centrifuge Download PDFInfo
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- CN209438824U CN209438824U CN201821826650.1U CN201821826650U CN209438824U CN 209438824 U CN209438824 U CN 209438824U CN 201821826650 U CN201821826650 U CN 201821826650U CN 209438824 U CN209438824 U CN 209438824U
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- Prior art keywords
- rotary drum
- baffle
- ring baffle
- helical blade
- discharge port
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Abstract
The utility model belongs to sludge treatment device field, discloses a kind of rotary drum for being exclusively used in sludge Dewatering Centrifuge, and that there is service lifes in order to solve the problems, such as existing rotary drum is short, length is longer and energy consumption is high.The utility model includes rotary drum body, rotary drum body includes straightway and conical section, the periphery of rotary drum body is provided with the first helical blade, it is characterized in that, the rotary drum body is hollow structure, the inside of rotary drum body is equipped with rotation axis through bearing, the periphery of rotation axis is provided with the second helical blade, rotation axis is connected with the feed pipe for being connected to external sludge source, feed pipe protrudes into conical section and offers charging port, discharge port is offered on straightway far from charging port side, discharge outlet is equipped with ring baffle.
Description
Technical field
The utility model belongs to sludge treatment device technical field, and in particular to a kind of sludge Dewatering Centrifuge that is exclusively used in
Rotary drum.
Background technique
Important device is exactly sludge dewatering equipment in sewage-treatment plant, and the course of work of sludge dewatering equipment is: from dirt
The precipitating sludge of mud thickener is pumped by sewage sludge feed and is conveyed after sludge cutting machine is broken, is sent into flocculant dosing system
Prepared medical fluid merges together, is mixed into centrifugal dehydrator, for sludge at solid-liquid two-phase after dewaterer separates, liquid phase is (clear
Clear liquid or separating liquid) it direct emission or send to sedimentation basin, solid phase (dewatered sludge) is then discharged by screw conveyor.
It is also more about the technical literature of sludge dewatering equipment in the prior art, such as application No. is 201220390358.6
Utility model patent discloses a kind of high mass dryness fraction sludge dewatering decanter centrifuge, by rack, rack-mounted centrifuge rotation
The hydraulic system composition that swivel and hydraulic motor differential mechanism and hydraulic station device are constituted, the centrifuge rotary body includes rotary drum,
The spiral being mounted in rotary drum, the feeding device in rotary drum big end, the feed pipe of feeding device extend into spiral, rotary drum
Equipped with straight section and section is bored, straight section big end is equipped with liquid-phase outlet, and cone section end is equipped with slag-drip opening, and the rotary drum mailbox of centrifuge, which works, to be grown
Degree is with diameter ratio design within the scope of 4-4.3.
However effect of the existing rotary drum due to functioning only as a feeding-passage in structure, inside rotary drum, and outside rotary drum
The helical blade enclosed plays the role of an extruding separation solid-liquid, and the discharge port of rotary drum is generally all disposed within close in the prior art
On the rotary drum at solid-phase outlet end,.This structure type has the following problems in use:
1, the sludge inside rotary drum often can not all be discharged, and sludge itself contains a large amount of harmful substance, long-term heap
The serious service life for reducing rotary drum of product.
2, discharge port causes the helical blade on rotary drum inadequate to the extrusion time of sludge close to solid-phase outlet, causes to arrange
Solid phase moisture content out is higher, and in order to improve solid-liquid separation effect, the prior art is had to the length for increasing helical blade, thus
Cause device length longer, motor consumes energy high problem.
Utility model content
That there is service lifes in order to solve the problems, such as existing rotary drum is short for the utility model, length is longer and energy consumption is high,
And a kind of rotary drum for being exclusively used in sludge Dewatering Centrifuge is provided, using two section type structure, do not changing existing rotary drum outer diameter size
In the case where and separating effect under the premise of, the length of rotary drum can be greatly shortened, while reducing energy consumption；And this is practical new
Service life short problem caused by type can prevent sludge from accumulating for a long time in rotary drum.
In order to solve the technical problem, the technical scheme adopted by the utility model is
A kind of rotary drum being exclusively used in sludge Dewatering Centrifuge, including rotary drum body, rotary drum body include straightway and taper
Section, the periphery of rotary drum body are provided with the first helical blade, which is characterized in that the rotary drum body is hollow structure, rotary drum sheet
The inside of body is equipped with rotation axis through bearing, and the periphery of rotation axis is provided with the second helical blade, rotation axis be connected with for
The feed pipe of external sludge source connection, feed pipe protrude into conical section and offer charging port, far from charging port side
Discharge port is offered on straightway, discharge outlet is equipped with ring baffle.
The ring baffle includes first annular baffle and the second ring baffle, first annular baffle and the second ring baffle
It links together through connector sleeve, first annular baffle is provided with spherical or hemispherical groove, the second ring far from charging port side
Shape baffle is provided with spherical or hemispherical groove close to charging port side, and the outer diameter of first annular baffle is greater than the second annular gear
The outer diameter of plate.
The inner wall of the rotary drum body is equipped with reducer, and reducer is located remotely from the end of charging port, reducer it is interior
Direction of the diameter from far from charging port to close to charging port is gradually increased；The discharge port includes that liquid phase discharge port and solid phase go out
Material mouth, for solid phase discharge port on the reducer between the second ring baffle and charging port, liquid phase discharge port is located at the first ring
On reducer between shape baffle and the second ring baffle, and offers on the connector sleeve and corresponded to each other with liquid phase discharge port
Through hole.
The first through hole for penetrating through first annular baffle is offered in the spherical shape or hemispherical groove of first annular baffle, and
And first through hole is located on the first annular baffle except connector sleeve.
Second ring baffle is provided with the protrusion of arc close to first annular baffle side, the second annular except protrusion
The second through-hole is offered on baffle.
It is less than the outer diameter of remaining helical blade on straightway close to the outer diameter of the helical blade of the second ring baffle.
The hand of spiral of second helical blade and the hand of spiral of the first helical blade on the contrary, the first helical blade and
The direction of rotation of second helical blade is opposite.
The course of work of the utility model is:
Being added has the sludge of flocculant to enter the inside for then entering rotary drum by charging port from feed pipe, second
Under the extruding impetus of helical blade, material is moved towards the direction of discharge port, and the biggish solid phase of centrifugal force discharges from solid phase
It is discharged in mouthful, liquid phase is discharged from liquid phase discharge port, realizes the pre-separation to solid-liquid；Solid phase from solid phase discharge port ejection after,
Under the action of second ring baffle groove, the effect of first time blocking reflected, therefore, the dirt of ejection can be carried out to the solid phase of ejection
Mud can quickly be got rid of outward from center, so that the direction of most of solid phase towards helical blade is conveyed, a small amount of sludge
And the liquid phase separated in centrifugal force effect enters first annular baffle by the second ring baffle and the second annular is kept off
Between plate, for sludge under the blocking of first annular baffle and the guide functions of the second ring baffle protrusion, sludge passes through second
Through-hole again passes through the second ring baffle and is squeezed by the first helical blade；And by liquid phase that liquid phase discharge port enters with
And entered between first annular baffle and the second ring baffle from the liquid phase that the second ring baffle flows out, since centrifugal force is opposite
It is smaller, therefore liquid phase is flowed out through first through hole, is finally discharged from liquid-phase outlet, and solid phase is with the extruding and conveying of helical blade
Effect, is discharged from solid-phase outlet, to complete separation of solid and liquid effect.
Compared with prior art, the utility model has the following beneficial effects:
The rotary drum of the utility model during the work time, addition have the sludge of flocculant from feed pipe enter then by into
Material port enters the inside of rotary drum, and under the extruding impetus of the second helical blade, material is transported towards the direction of discharge port
Dynamic, the biggish solid phase of centrifugal force is discharged from solid phase discharge port, and liquid phase is discharged from liquid phase discharge port, realizes pre- point to solid-liquid
From；Solid phase is after the ejection of solid phase discharge port, under the action of the second ring baffle groove, can carry out first to the solid phase of ejection
The effect of secondary blocking reflected, therefore, the sludge of ejection can quickly be got rid of outward from center, so that most of solid phase is towards helical-blade
The direction of piece is conveyed, and a small amount of sludge and the liquid phase separated in centrifugal force effect pass through the entrance of the second ring baffle
To between first annular baffle and the second ring baffle, sludge is in the blocking of first annular baffle and the second ring baffle protrusion
Guide functions under, sludge again passes through the second ring baffle by the second through-hole and is squeezed by the first helical blade；And
The liquid phase that enters by liquid phase discharge port and first annular baffle and second are entered from the liquid phase that the second ring baffle flows out
Between ring baffle, since centrifugal force is relatively small, liquid phase is flowed out through first through hole, is finally discharged from liquid-phase outlet, and
Solid phase is acted on the extruding and conveying of helical blade, is discharged from solid-phase outlet, to complete separation of solid and liquid effect.It is logical first
The promotion squeezing action for crossing the second helical blade, sludge is not only quickly excluded completely, prevents dead angle, improve rotary drum
Service life, additionally it is possible to sludge carry out first time separation of solid and liquid, and for the first time be separated by solid-liquid separation after solid phase and liquid phase circulation
Separation is realized in path under the action of first annular baffle and the second ring baffle, then by the first helical blade again to solid
Mutually it is centrifugated again.Using two section type structure, can contract significantly in the case where not changing existing rotary drum outer diameter size
The length of short rotary drum reduces energy consumption；Simultaneously in such a way that extruding first separation is primary, the separation effect of solid-liquid is substantially increased
Fruit.
The utility model is relatively quiet in one in groove convenient for liquid phase by the way that groove is arranged on first annular baffle
The environment of state reduces rotary drum to the souring of liquid phase so that isolated liquid phase is limpider, while the utility model by
Groove is set on second ring baffle, the sludge of ejection can be stopped and be reflected.And the outer diameter of first annular baffle
Greater than the outer diameter of the second ring baffle, convenient for the liquid phase separated and small part solid phase between the second ring baffle and housing
Gap in be discharged in time so that solid-liquid separates in time, convenient for improving solid-liquid separation effect.
The utility model by the way that first through hole is arranged on first annular baffle, convenient for by the liquid phase separated from first
It is discharged in through-hole, and protrusion and the second through-hole is set on the second ring baffle, convenient for being by first annular baffle and the
Solid phase between second ring baffle is re-introduced into helical blade by the second through-hole to be squeezed, compared with the prior art directly
The mode only with overflow port is connect, can be improved the solid concentration greatly reduced in liquid phase.
The utility model is by the design to rotary drum inside reducer, so that the biggish solid phase of centrifugal force is from solid phase discharge port
Middle discharge, liquid phase are discharged from liquid phase discharge port, realize the pre-separation to solid-liquid, improve solid-liquid separation effect.
The spiral shell that the utility model is less than on remaining straightway by will be close to the outer diameter of the helical blade of the second ring baffle
The outer diameter of vane piece prevents sludge in the second annular convenient for being squeezed on the quick jet stream to helical blade of sludge of ejection
It is accumulated at baffle and the case where clamping stagnation occurs, improve the practicability of the utility model.
The hand of spiral of the utility model helical blade and the second helical blade on the contrary, make from rotary drum come out solid phase and
The impact force that liquid phase is subject to is more powerful, convenient for realizing separation again to solid phase and liquid phase, improves solid-liquid separation effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the first annular baffle of the utility model and the structural schematic diagram of the second ring baffle；
Marked in the figure: 1, rotary drum body, 2, straightway, 3, conical section, the 4, first helical blade, 5, rotation axis, 6, second
Helical blade, 7, feed pipe, 8, charging port, 9, first annular baffle, the 10, second ring baffle, 11, connector sleeve, 12, recessed
Slot, 13, first through hole, 14, protrusion, the 15, second through-hole, 16, reducer, 17, solid phase discharge port, 18, hydraulic discharging mouth, 19,
Liquid barrier, 20, overflow port, 21, through hole.
Specific embodiment
Below with reference to embodiment, the utility model will be further described, and described embodiment is only that this is practical new
Type a part of the embodiment is not whole embodiment.Based on the embodiments of the present invention, the ordinary skill people of this field
Member's other embodiments used obtained without making creative work, belong to the protection model of the utility model
It encloses.
In conjunction with attached drawing, the rotary drum for being exclusively used in sludge Dewatering Centrifuge of the utility model, including rotary drum body 1, rotary drum sheet
Body 1 includes straightway 2 and conical section 3, and the periphery of rotary drum body 1 is provided with the first helical blade 4, wherein the first helical blade 6
It cooperates with the housing of centrifuge, those skilled in the art can be appreciated and understood that details are not described herein；Rotary drum body 1
The end of straightway be additionally provided with liquid barrier 19, overflow port 20 is offered on liquid barrier 19, by liquid barrier make rotary drum with
A liquid phase flow pass is formed between housing, the rotary drum body 1 is hollow structure, and the inside of rotary drum body 1 is pacified through bearing
Equipped with rotation axis 5, the periphery of rotation axis 5 is provided with the second helical blade 6, the internal diameter phase interworking of the second helical blade and rotary drum
It closes, rotation axis 5 is connected with the feed pipe 7 for being connected to external sludge source, and feed pipe 7 is protruded into conical section 3 and offered
Charging port 8, far from 8 side of charging port straightway on offer discharge port, discharge outlet is equipped with ring baffle.
The ring baffle includes first annular baffle 9 and the second ring baffle 10, and first annular baffle 9 and second is annular
Baffle 10 links together through connector sleeve 11, and charging port side is provided with spherical shape to first annular baffle 9 or hemispherical is recessed
Slot 12, the second ring baffle 10 are provided with spherical or hemispherical groove 12 close to charging port side, first annular baffle 9 it is outer
Diameter is greater than the outer diameter of the second ring baffle 10.
The inner wall of the rotary drum body is equipped with reducer 16, and reducer 16 is located remotely from the end of charging port 8, reducer
Direction of 16 internal diameter from far from charging port 8 to close to charging port 8 is gradually increased；The discharge port includes liquid phase discharge port
18 and solid phase discharge port 17, solid phase discharge port 17 is on the reducer 16 between the second ring baffle 10 and charging port 8, liquid
Phase discharge port 18 is on the reducer between first annular baffle 9 and the second ring baffle 10, and on the connector sleeve 11
It offers and the mutual corresponding through hole 21 of liquid phase discharge port 18.
The first through hole for penetrating through first annular baffle is offered in the spherical shape or hemispherical groove 12 of first annular baffle 9
13, and first through hole 13 is located on the first annular baffle 9 except connector sleeve 11.
Second ring baffle 10 is provided with the protrusion 14 of arc close to first annular 9 side of baffle, except protrusion 14
The second through-hole 15 is offered on second ring baffle.
The utility model is relatively quiet in one in groove convenient for liquid phase by the way that groove is arranged on first annular baffle
The environment of state reduces rotary drum to the souring of liquid phase so that isolated liquid phase is limpider, while the utility model by
Groove is set on second ring baffle, the sludge of ejection can be stopped and be reflected.And the outer diameter of first annular baffle
Greater than the outer diameter of the second ring baffle, convenient for the liquid phase separated and small part solid phase between the second ring baffle and housing
Gap in be discharged in time so that solid-liquid separates in time, convenient for improving solid-liquid separation effect.
The utility model by the way that first through hole is arranged on first annular baffle, convenient for by the liquid phase separated from first
It is discharged in through-hole, and protrusion and the second through-hole is set on the second ring baffle, convenient for being by first annular baffle and the
Solid phase between second ring baffle is re-introduced into helical blade by the second through-hole to be squeezed, compared with the prior art directly
The mode only with overflow port is connect, can be improved the solid concentration greatly reduced in liquid phase.
It is less than the outer diameter of remaining helical blade on straightway 2 close to the outer diameter of the helical blade of the second ring baffle 10.Just
It is squeezed on the quick jet stream to helical blade of sludge of ejection, prevents sludge from accumulating and occurring at the second ring baffle
The case where clamping stagnation, improves the practicability of the utility model.
The hand of spiral of second helical blade 6 and the hand of spiral of the first helical blade 4 are on the contrary, the first helical blade
It is opposite with the direction of rotation of the second helical blade.So that the impact force that the solid phase and liquid phase that come out from rotary drum are subject to is more powerful,
Convenient for realizing separation again to solid phase and liquid phase, solid-liquid separation effect is improved.
The rotary drum of the utility model during the work time, addition have the sludge of flocculant from feed pipe enter then by into
Material port enters the inside of rotary drum, and under the extruding impetus of the second helical blade, material is transported towards the direction of discharge port
Dynamic, the biggish solid phase of centrifugal force is discharged from solid phase discharge port, and liquid phase is discharged from liquid phase discharge port, realizes pre- point to solid-liquid
From；Solid phase is after the ejection of solid phase discharge port, under the action of the second ring baffle groove, can carry out first to the solid phase of ejection
The effect of secondary blocking reflected, therefore, the sludge of ejection can quickly be got rid of outward from center, so that most of solid phase is towards helical-blade
The direction of piece is conveyed, and a small amount of sludge and the liquid phase separated in centrifugal force effect pass through the entrance of the second ring baffle
To between first annular baffle and the second ring baffle, sludge is in the blocking of first annular baffle and the second ring baffle protrusion
Guide functions under, sludge again passes through the second ring baffle by the second through-hole and is squeezed by the first helical blade；And
The liquid phase that enters by liquid phase discharge port and first annular baffle and second are entered from the liquid phase that the second ring baffle flows out
Between ring baffle, since centrifugal force is relatively small, liquid phase is flowed out through first through hole, is finally discharged from liquid-phase outlet, and
Solid phase is acted on the extruding and conveying of helical blade, is discharged from solid-phase outlet, to complete separation of solid and liquid effect.It is logical first
The promotion squeezing action for crossing the second helical blade, sludge is not only quickly excluded completely, prevents dead angle, improve rotary drum
Service life, additionally it is possible to sludge carry out first time separation of solid and liquid, and for the first time be separated by solid-liquid separation after solid phase and liquid phase circulation
Separation is realized in path under the action of first annular baffle and the second ring baffle, then by the first helical blade again to solid
Mutually it is centrifugated again.Using two section type structure, can contract significantly in the case where not changing existing rotary drum outer diameter size
The length of short rotary drum reduces energy consumption；Simultaneously in such a way that extruding first separation is primary, the separation effect of solid-liquid is substantially increased
Fruit.
Claims (7)
1. a kind of rotary drum for being exclusively used in sludge Dewatering Centrifuge, including rotary drum body, rotary drum body includes straightway and conical section,
The periphery of rotary drum body is provided with the first helical blade, which is characterized in that the rotary drum body is hollow structure, rotary drum body
Inside is equipped with rotation axis through bearing, and the periphery of rotation axis is provided with the second helical blade, rotation axis be connected with for outside
The connection of sludge source feed pipe, feed pipe protrudes into conical section and offers charging port, the straight line far from charging port side
Discharge port is offered in section, discharge outlet is equipped with ring baffle.
2. the rotary drum according to claim 1 for being exclusively used in sludge Dewatering Centrifuge, which is characterized in that the ring baffle packet
First annular baffle and the second ring baffle are included, first annular baffle and the second ring baffle link together through connector sleeve, the
One ring baffle is provided with spherical or hemispherical groove, the second ring baffle far from charging port side and sets close to charging port side
It is equipped with spherical or hemispherical groove, the outer diameter of first annular baffle is greater than the outer diameter of the second ring baffle.
3. the rotary drum according to claim 2 for being exclusively used in sludge Dewatering Centrifuge, which is characterized in that the rotary drum body
Inner wall is equipped with reducer, and reducer is located remotely from the end of charging port, the internal diameter of reducer from far from charging port to close
The direction of charging port is gradually increased；The discharge port includes liquid phase discharge port and solid phase discharge port, and solid phase discharge port is located at the
On reducer between second ring baffle and charging port, liquid phase discharge port be located at first annular baffle and the second ring baffle it
Between reducer on, and offered and the mutual corresponding through hole of liquid phase discharge port on the connector sleeve.
4. the rotary drum according to claim 2 for being exclusively used in sludge Dewatering Centrifuge, which is characterized in that first annular baffle
Offer the first through hole for penetrating through first annular baffle in spherical or hemispherical groove, and first through hole be located at connector sleeve it
On outer first annular baffle.
5. the rotary drum according to claim 2 for being exclusively used in sludge Dewatering Centrifuge, which is characterized in that the second ring baffle leans on
Nearly first annular baffle side is provided with the protrusion of arc, offers the second through-hole on the second ring baffle except protrusion.
6. the rotary drum according to claim 1 for being exclusively used in sludge Dewatering Centrifuge, which is characterized in that close to the second annular gear
The outer diameter of the helical blade of plate is less than the outer diameter of remaining helical blade on straightway.
7. the rotary drum according to claim 1 for being exclusively used in sludge Dewatering Centrifuge, which is characterized in that second helical-blade
The hand of spiral of the hand of spiral of piece and the first helical blade on the contrary, the first helical blade and the second helical blade direction of rotation
On the contrary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826650.1U CN209438824U (en) | 2018-11-07 | 2018-11-07 | A kind of rotary drum being exclusively used in sludge Dewatering Centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821826650.1U CN209438824U (en) | 2018-11-07 | 2018-11-07 | A kind of rotary drum being exclusively used in sludge Dewatering Centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209438824U true CN209438824U (en) | 2019-09-27 |
Family
ID=68011202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821826650.1U Expired - Fee Related CN209438824U (en) | 2018-11-07 | 2018-11-07 | A kind of rotary drum being exclusively used in sludge Dewatering Centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209438824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773330A (en) * | 2019-11-26 | 2020-02-11 | 巨能机械(中国)有限公司 | Horizontal spiral discharging sedimentation centrifuge with squeezing baffle structure |
-
2018
- 2018-11-07 CN CN201821826650.1U patent/CN209438824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773330A (en) * | 2019-11-26 | 2020-02-11 | 巨能机械(中国)有限公司 | Horizontal spiral discharging sedimentation centrifuge with squeezing baffle structure |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190927 Termination date: 20201107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |