CN112194336A - Sludge dewatering device - Google Patents
Sludge dewatering device Download PDFInfo
- Publication number
- CN112194336A CN112194336A CN202011288559.0A CN202011288559A CN112194336A CN 112194336 A CN112194336 A CN 112194336A CN 202011288559 A CN202011288559 A CN 202011288559A CN 112194336 A CN112194336 A CN 112194336A
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- fixedly connected
- porous disk
- activity
- sludge
- cup jointed
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention relates to the technical field of sludge treatment equipment and discloses a sludge dewatering device which comprises supporting legs, wherein the upper ends of the supporting legs are fixedly connected with a shell. Through the setting with the discharge gate setting at auger delivery's leftmost end and drum porous disk, the drum porous disk is rotatory centrifugal force fast under the drive of first motor, make mud paste drum porous disk inner wall under the centrifugal force effect, moisture in the mud passes the drum porous disk and gets into in the separation chamber and is collected by the discharge, and mud is scraped down and is advanced to toper porous disk one end along drum porous disk inner wall under auger delivery's the rotation effect, make the continuous repetition of mud on the drum porous disk inner wall scrape down, centrifugation, the process of permeating water, again because the discharge gate sets up at the leftmost end, can guarantee that mud is longest at drum porous disk inside movement time, realize fully dehydrating, and also can adopt this kind of centrifugation mode of permeating water to work when difference is less to solid-liquid density, work efficiency is high.
Description
Technical Field
The invention relates to the technical field of sludge treatment equipment, in particular to a sludge dewatering device.
Background
The sludge centrifugal dehydrator is a machine for dehydrating sludge by applying a centrifugal sedimentation principle, and consists of a rotary drum, a spiral conveyor, a bottom frame, a liquid-solid phase collection cavity, an upper cover, a motor transmission device and other parts, wherein the working principle is as follows: after being sent into the rotary drum by the hollow rotary shaft, the sludge is thrown into a cavity of the rotary drum immediately under the action of centrifugal force generated by high-speed rotation of the rotary drum, and sludge particles are thrown and attached to the inner wall of the rotary drum due to high density and high centrifugal force to form a solid ring layer; the water is low in density and small in centrifugal force, so that a liquid ring layer can be formed only on the inner side of the solid ring layer, and the sludge of the solid ring layer is slowly pushed by the screw conveyor, conveyed to the conical end of the rotary drum and continuously discharged through an outlet around the rotary drum; the liquid in the liquid ring layer is discharged out of the rotary drum through the weir mouth in a continuous 'overflow' manner to form separation liquid.
However, the existing sludge centrifugal dehydrator has the following defects in the actual use process: firstly, the sludge dewatering machine adopts a centrifugal force mode to lead sludge particles and water to carry out solid-liquid separation by different generated centrifugal forces due to different densities, namely solid-liquid separation, but when the solid-liquid density difference is very small, the sludge is difficult to separate and layer on the inner wall of the rotary drum, thus seriously affecting the dewatering efficiency; secondly, because this hydroextractor adopts auger delivery to carry, lead to mud to be close to the conic section more and more in the rotary drum inside, and liquid distributes in overflow mouth one end under self action of gravity, more pure when in order to guarantee the liquid phase overflow, it is enough to guarantee simultaneously mud solid-liquid layering time, the impact of the material that needs to reduce the entering to the liquid phase, so discharge gate on the auger delivery mostly sets up and is being close to the solid phase export, but because the discharge gate is close to the solid phase export of conical end, lead to helical blade not enough to the extrusion time of mud, lead to the solid phase moisture content of exhaust to be higher.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides the sludge dewatering device which has the advantages of high dewatering efficiency and low waste residue water content, and solves the problems in the background technology.
The invention provides the following technical scheme: a sludge dewatering device comprises supporting legs, wherein the upper ends of the supporting legs are fixedly connected with a shell, a separation cavity and a slag discharge cavity are arranged in the shell, a movable disc is movably sleeved at the middle part of one side of the separation cavity, a feed pipe is movably sleeved at the middle part of the movable disc, one end of the feed pipe is fixedly connected with a spiral conveyer, a belt ring is fixedly connected at the outer side of the middle part of the front surface of the movable disc, a first belt is movably sleeved at the outer side of the belt ring, a first motor is movably sleeved at the other end of the first belt, a discharge hole is formed in the spiral conveyer close to one end of the movable disc, a cylindrical water permeable plate is fixedly connected at one end of the movable disc, a support fixedly connected with the shell is movably sleeved at the other end of the cylindrical water permeable plate, a conical water permeable plate is fixedly mounted at the inner side of, the middle part of the fixed disc is movably sleeved with a fixed piece, one end of the fixed piece is fixedly connected with the spiral conveyor, the other end of the fixed piece is movably sleeved with a second belt, and the other end of the second belt is movably sleeved with a second motor.
Preferably, the fixing part comprises a transmission rod, one end of the transmission rod, which is close to the screw conveyor, is fixedly connected with a baffle disc, the outer side of the middle part of the front surface of the baffle disc is fixedly connected with a plurality of groups of rotating blades which are arranged in an equal circumference mode, and the middle part of the baffle disc is fixedly connected with a chuck.
Preferably, the inner wall of the cylindrical water permeable plate is in contact with the screw of the screw conveyor without pressure.
Preferably, the rotary vane is a bending fan blade with gradually changing thickness from inside to outside, and the rotary vane and a slag discharging channel in the slag discharging cavity are positioned on the same plane.
Preferably, the separating cavity and the slag discharging cavity are both provided with a material outlet, and the bottom of the separating cavity is an inclined plane.
The invention has the following beneficial effects:
1. through the arrangement of the discharge port at the leftmost end of the spiral conveyor and the cylindrical permeable plate, after sludge enters from the feeding pipe and is discharged from the discharge port to the interior of the cylindrical permeable plate, the cylindrical permeable plate is driven by the first motor to rotate rapidly to generate centrifugal force, so that the sludge is attached to the inner wall of the cylindrical permeable plate under the action of the centrifugal force, moisture in the sludge passes through the cylindrical permeable plate to enter the separation cavity and is discharged and collected, and the dewatered sludge is scraped along the inner wall of the cylindrical permeable plate under the rotation action of the spiral conveyor and advances towards one end of the conical permeable plate, so that the sludge on the inner wall of the cylindrical permeable plate is continuously and repeatedly scraped, centrifuged and permeated, and the discharge port is arranged at the leftmost end, the longest movement time of the sludge in the cylindrical permeable plate can be ensured, sufficient dewatering is realized, and the centrifugal permeable mode can be adopted to work when the solid-liquid density difference is small, the working efficiency is high.
2. Through the arrangement of the conical permeable plate and the fixing piece, the sludge in the conical permeable plate area is subjected to the extrusion force between the rotary screw conveyor and the fixed conical permeable plate, by separating the conical permeable plate from the cylindrical permeable plate, the sludge moving at the conical end is only related to the rotating speed of the screw conveyor, the rotating speed of the screw conveyor is slow, the extrusion time of the sludge in the conical permeable plate area can be prolonged, the residual water in the sludge is gradually extruded out along with the slow pushing of the screw conveyor, the water content of the waste residue is reduced, and the rotary vane can synchronously rotate when the screw conveyor rotates to screw out the fully drained sludge at the solid phase outlet so as to prevent the sludge and waste residues from accumulating and caking at the solid phase outlet, the excessive extrusion force is caused to the screw of the screw conveyor, the normal work of the screw conveyor is influenced, and the discharge of waste residues is accelerated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the belt ring and the movable plate of the present invention;
FIG. 3 is a general schematic view of a structural fastener of the present invention;
fig. 4 is a schematic elevational view of a structural fastener of the present invention.
In the figure: 1. supporting legs; 2. a housing; 3. a separation chamber; 4. a slag discharge cavity; 5. a movable tray; 6. a feed pipe; 7. a screw conveyor; 8. a discharge port; 9. a belt loop; 10. a first belt; 11. a first motor; 12. a cylindrical porous plate; 13. a support; 14. a conical water permeable plate; 15. fixing the disc; 16. a fixing member; 161. a transmission rod; 162. a catch tray; 163. rotating leaves; 164. a chuck; 17. a second belt; 18. a second motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a sludge dewatering device comprises a supporting leg 1, a casing 2 is fixedly connected to the upper end of the supporting leg 1, a separation chamber 3 and a residue discharge chamber 4 are arranged in the casing 2, a movable disc 5 is movably sleeved at the middle part of one side of the separation chamber 3, a feed pipe 6 is movably sleeved at the middle part of the movable disc 5, a spiral conveyor 7 is fixedly connected to one end of the feed pipe 6, a belt ring 9 is fixedly connected to the outer side of the middle part of the front surface of the movable disc 5, a first belt 10 is movably sleeved at the outer side of the belt ring 9, a first motor 11 is movably sleeved at the other end of the first belt 10, a discharge port 8 is arranged at one end of the spiral conveyor 7 close to the movable disc 5, a cylindrical permeable plate 12 is fixedly connected to one end of the movable disc 5, a support 13 fixedly connected to the casing 2 is movably sleeved at the other end of, the middle part fixedly connected with fixed disk 15 of row's sediment chamber 4 lateral wall, the middle part activity of fixed disk 15 has cup jointed mounting 16, mounting 16 includes transfer line 161, the one end fixedly connected with fender dish 162 that is close to screw conveyer 7 of transfer line 161, the outside fixedly connected with a plurality of groups of equidistance's the equal circumference of the positive middle part of fender dish 162 spiral leaves 163, the middle part fixedly connected with chuck 164 of fender dish 162, the one end and the screw conveyer 7 fixed connection of mounting 16, the second belt 17 has been cup jointed in the other end activity of mounting 16, the other end activity of second belt 17 has cup jointed second motor 18.
Wherein, the inner wall of the cylinder porous disc 12 contacts with the spiral of the screw conveyor 7 but has no pressure, when the sludge starts to work, the sludge enters from the inlet pipe 6 and is discharged from the outlet port 8 to the inner part of the cylinder porous disc 12, the cylinder porous disc 12 is driven by the first motor 11 to rotate rapidly to generate centrifugal force, so that the sludge is attached to the inner wall of the cylinder porous disc 12 under the action of the centrifugal force, the moisture in the sludge passes through the cylinder porous disc 12 and enters the separation cavity 3 and is discharged and collected, and the dewatered sludge is scraped off along the inner wall of the cylinder porous disc 12 under the rotation action of the screw conveyor 7 and advances to one end of the cone-shaped porous disc 14, so that the sludge on the inner wall of the cylinder porous disc 12 can be scraped off repeatedly, centrifuged and permeated, and the process of the water is continuous, because the outlet port 8 is arranged at the leftmost end, the longest movement time of the sludge in the, and when the solid-liquid density difference is small, the centrifugal water-permeable mode can be adopted to work, and the working efficiency is high.
Wherein, the rotary vane 163 is a bending fan blade with gradually changing thickness from inside to outside, the rotary vane 163 and the slag discharging channel inside the slag discharging cavity 4 are in the same plane, after the sludge is fully dewatered by the cooperation of the cylindrical permeable plate 12 and the screw conveyor 7, and when the sludge is extruded to the conical permeable plate 14 area by the screw conveyor 7, because the discharge port 8 of the traditional sludge centrifugal dehydrator is arranged near the solid phase outlet, and the conical end of the traditional sludge centrifugal dehydrator rotates along with the rotary drum, the rotating speed is fast, the sludge is accelerated to move to the solid phase outlet by the reverse rotation cooperation of the rotary drum and the screw conveyor 7 at the conical end, the time of sludge compression and water discharge is further reduced, the water content of the waste slag is increased, and the sludge is fully centrifugally dewatered in the cylindrical permeable plate 12 area by separating the conical permeable plate 14 and the cylindrical permeable plate 12, receive the extrusion force between rotatory auger delivery 7 and the fixed toper porous disk at 14 regional inside mud of toper porous disk, push away remaining moisture in the mud gradually under auger delivery 7's promotion, reduce the moisture content of waste residue, and the vane 163 can be synchronous revolution when auger delivery 7 is rotatory, stir away the mud of solid phase exit by abundant drainage soon, in order to prevent that the mud waste residue from piling up in solid phase exit, the caking, cause too big extrusion force to the spiral of auger delivery 7, influence auger delivery 7's normal work, accelerate the discharge of waste residue.
Wherein, the bin outlet has all been seted up with the bottom in row sediment chamber 4 to separation chamber 3, and the bottom of separation chamber 3 is the inclined plane, can be collected the liquid quick discharge that is thrown away by the centrifugation in the separation chamber 3, prevents that the waste liquid from remaining.
The working principle is that when the sludge works, the sludge enters from the inlet pipe 6 and is discharged from the outlet port 8 to the inside of the cylindrical permeable plate 12, the cylindrical permeable plate 12 is driven by the first motor 11 to rotate rapidly to generate centrifugal force, so that the sludge is attached to the inner wall of the cylindrical permeable plate 12 under the action of the centrifugal force, moisture in the sludge passes through the cylindrical permeable plate 12, enters the separation cavity 3 and is discharged and collected, the dewatered sludge is scraped along the inner wall of the cylindrical permeable plate 12 under the rotating action of the screw conveyor 7 and advances towards one end of the conical permeable plate 14, so that the sludge on the inner wall of the cylindrical permeable plate 12 is continuously and repeatedly scraped, centrifuged and permeated, and when the sludge is extruded to the area of the conical permeable plate 14 by the screw conveyor 7, the sludge in the area of the conical permeable plate 14 is subjected to extrusion force between the rotating screw conveyor 7 and the fixed conical permeable plate 14, and the residual moisture in the sludge is gradually extruded under the pushing action of the screw conveyor 7, reduce the moisture content of waste residue, the synchronous revolution of spiral leaf 163 can be when auger delivery ware 7 is rotatory moreover, dials away solid phase exit by the mud of abundant drainage soon to prevent that mud waste residue from piling up, caking in solid phase exit, cause too big extrusion reaction force to auger delivery ware 7's spiral, influence auger delivery ware 7's normal work, add the discharge of piece waste residue.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a sludge dewatering device, includes supporting leg (1), upper end fixedly connected with casing (2) of supporting leg (1), the inside of casing (2) is provided with disengagement chamber (3) and arranges sediment chamber (4), the middle part activity of disengagement chamber (3) one side has cup jointed movable disc (5), inlet pipe (6) have been cup jointed in the middle part activity of movable disc (5), the one end fixedly connected with auger delivery ware (7) of inlet pipe (6), the outside fixedly connected with belt ring (9) at the positive middle part of movable disc (5), first belt (10) have been cup jointed in the outside activity of belt ring (9), first motor (11), its characterized in that have been cup jointed in the other end activity of first belt (10): discharge gate (8) have been seted up to the one end that auger delivery (7) are close to activity dish (5), the one end fixedly connected with drum porous disk (12) of activity dish (5), the other end activity of drum porous disk (12) has cup jointed support (13) with casing (2) fixed connection, the inboard fixed mounting of support (13) has toper porous disk (14), the middle part fixedly connected with fixed disk (15) of row's sediment chamber (4) lateral wall, mounting (16) have been cup jointed in the middle part activity of fixed disk (15), the one end and auger delivery (7) fixed connection of mounting (16), second belt (17) have been cup jointed in the other end activity of mounting (16), second motor (18) have been cup jointed in the other end activity of second belt (17).
2. The sludge dewatering apparatus according to claim 1, wherein: the fixing piece (16) comprises a transmission rod (161), one end of the transmission rod (161) close to the screw conveyor (7) is fixedly connected with a baffle disc (162), the outer side of the middle of the front face of the baffle disc (162) is fixedly connected with a plurality of groups of rotating vanes (163) which are arranged in an equal circumference mode, and the middle of the baffle disc (162) is fixedly connected with a chuck (164).
3. The sludge dewatering apparatus according to claim 1, wherein: the inner wall of the cylindrical water permeable plate (12) is in contact with the screw of the screw conveyor (7) without pressure.
4. The sludge dewatering apparatus according to claim 2, wherein: the rotary vane (163) is a bending fan blade with gradually changing thickness from inside to outside, and the rotary vane (163) and a slag discharging channel inside the slag discharging cavity (4) are located on the same plane.
5. The sludge dewatering apparatus according to claim 1, wherein: the separating cavity (3) and the slag discharging cavity (4) are both provided with a material outlet, and the bottom of the separating cavity (3) is an inclined plane.
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| CN202011288559.0A CN112194336B (en) | 2020-11-17 | 2020-11-17 | Sludge dewatering device |
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| CN202011288559.0A CN112194336B (en) | 2020-11-17 | 2020-11-17 | Sludge dewatering device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260106A (en) * | 2021-12-21 | 2022-04-01 | 成理科技(成都)股份有限公司 | Earth pressure balance shield muck grading treatment system |
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| CN109851197A (en) * | 2018-12-26 | 2019-06-07 | 王敏晓 | A kind of river sludge separating and treating apparatus |
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| JP2019162632A (en) * | 2019-05-30 | 2019-09-26 | 前澤工業株式会社 | Apparatus for separating and dehydrating sewage sludge |
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| CN114260106B (en) * | 2021-12-21 | 2024-04-02 | 成理科技(成都)股份有限公司 | Classification treatment system for earth pressure balance shield dregs |
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