CN218089302U - Sludge dewatering device - Google Patents
Sludge dewatering device Download PDFInfo
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- CN218089302U CN218089302U CN202222706772.XU CN202222706772U CN218089302U CN 218089302 U CN218089302 U CN 218089302U CN 202222706772 U CN202222706772 U CN 202222706772U CN 218089302 U CN218089302 U CN 218089302U
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- sludge
- dewatering
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- support plate
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Abstract
The utility model discloses a sludge dewatering device, which comprises a sludge concentration area and a sludge dewatering area communicated with the sludge concentration area; the sludge concentration area comprises a sludge inlet hopper, a cylindrical filter screen communicated with the sludge inlet hopper, a concentration section support plate connected with the cylindrical filter screen, a concentration section speed reducing motor arranged on the sludge inlet hopper, and a concentration section spiral shaft arranged between the concentration section speed reducing motor and the concentration section support plate; the concentration section screw shaft is provided with a plurality of screw blades; the sludge dewatering area comprises a sludge hopper, a dewatering cavity communicated with the sludge hopper, a dewatering section support plate connected with the dewatering cavity, a dewatering section speed reducing motor arranged on the sludge hopper, and a dewatering section spiral shaft arranged between the dewatering section speed reducing motor and the dewatering section support plate. The concentration zone and the dehydration zone are separated, the rotating speeds of the spiral shaft of the concentration zone and the spiral shaft of the dehydration zone are not influenced mutually, and the rotating speeds with better internal stirring effect and high draining efficiency can be respectively adjusted, so that the concentration dehydration speed of the sludge is improved.
Description
Technical Field
The utility model belongs to the technical field of sludge dewatering, concretely relates to sludge dewatering device.
Background
The sludge produced by sewage treatment has higher water content, and in order to reduce the floor area for sludge stacking, a common large and medium-sized sewage treatment plant adopts machinery to dehydrate the sludge.
The patent with the application number of CN201821928193.7 discloses a stacked screw type sludge dewatering machine which comprises a stacked screw body, a sludge inlet, a sludge outlet, a speed reducer mounting seat and a speed reducer, wherein the stacked screw body is mounted between the sludge inlet and the sludge outlet, the sludge outlet is provided with the speed reducer mounting seat, the speed reducer is mounted on the speed reducer mounting seat, a screw shaft is mounted in the stacked screw body, and the stacked screw body is horizontally mounted; the screw shaft comprises a first screw part, a second screw part and a third screw part from the mud inlet to the mud outlet, the first screw part is cylindrical, the second screw part is in a cone shape, and the third screw part is cylindrical. Although the rotating shafts of the water filtering section and the sludge discharging section of the stacked screw type sludge dewatering machine are divided into three parts, the same rotating shaft is adopted, and the rotating speed of the water filtering section is low due to the fact that the rotating speed is low due to the fact that the same rotating shaft is adopted to meet the dewatering requirement; in actual use, the internal stirring effect is poor due to low rotating speed, and the draining efficiency is relatively low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a sludge dewatering device separates concentrated district and dehydration district, adopts gear motor and screw axis drive respectively to solve among the above-mentioned background art hydroextractor rotational speed low, inside stirring effect is relatively poor, problem that waterlogging caused by excessive rainfall efficiency is low relatively.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a sludge dewatering device is characterized in that: comprises a sludge concentration area and a sludge dehydration area communicated with the sludge concentration area;
the sludge concentration area comprises a sludge inlet hopper, a cylindrical filter screen communicated with the sludge inlet hopper, a concentration section support plate connected with the cylindrical filter screen, a concentration section speed reducing motor arranged on the sludge inlet hopper, and a concentration section spiral shaft arranged between the concentration section speed reducing motor and the concentration section support plate; the concentration section screw shaft is provided with a plurality of screw blades;
the sludge dewatering area comprises a sludge outlet hopper, a dewatering cavity communicated with the sludge outlet hopper, a dewatering section support plate connected with the dewatering cavity, a dewatering section speed reducing motor arranged on the sludge outlet hopper, and a dewatering section spiral shaft arranged between the dewatering section speed reducing motor and the dewatering section support plate.
Preferably, the cylindrical filter screen is formed by a plurality of metal strips arranged along the circumferential direction; and the size of the gap between the adjacent metal strips is smaller than the size of sludge flocculation particles.
Preferably, a plurality of annular reinforcing hoops are arranged on the outer wall of the cylindrical filter screen.
Preferably, a sealing ring mounting seat is arranged at the joint of the concentration section speed reducing motor and the sludge inlet hopper, and a sealing ring is arranged in the sealing ring mounting seat; the outer wall of the spiral shaft of the concentration section is in interference fit with the inner wall of the sealing ring.
Preferably, the concentration section support plate and the dehydration section support plate are connected through bolts.
Preferably, sliding shaft sleeves are respectively arranged on the concentration section support plate and the dehydration section support plate; the concentration section screw shaft and the dehydration section screw shaft are in clearance fit with the sliding shaft sleeve respectively.
Preferably, a plurality of holes are respectively formed in the positions corresponding to the concentration section support plate and the dehydration section support plate; the holes are distributed along the periphery of the sliding shaft sleeve.
Preferably, the dewatering cavity comprises a plurality of fixed rings, movable rings arranged between the adjacent fixed rings, and ring piece fixing rods penetrating through the fixed rings and arranged between the mud bucket and the dewatering section supporting plate; and a gasket is also arranged on the ring piece fixing rod and between the adjacent fixed rings.
Preferably, a back pressure plate is arranged between the dewatering section speed reduction motor and the dewatering section spiral shaft; and the back pressure plate is positioned in the mud bucket.
Preferably, the sludge dewatering device further comprises mounting holes arranged at the bottoms of the sludge concentration zone and the sludge dewatering zone.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model provides a sludge dewatering device separates concentration zone and dehydration zone, adopts gear motor and screw axis drive respectively, and the rotational speed of concentration section screw axis does not influence mutually with the rotational speed of dehydration section screw axis, can adjust respectively that inside stirring effect is better, the efficient rotational speed of waterlogging caused by excessive rainfall, and then has improved the concentrated dehydration speed of mud.
The sludge concentration area adopts the cylindrical filter screen, so that the sludge concentration area has no fixed ring and moving ring, the cylindrical filter screen can not rub the spiral shaft, and the abrasion of the device is reduced.
After the sludge concentration area adopts the cylindrical filter screen, the spiral shaft of the concentration section can be provided with a plurality of spiral blades, the stirring effect on the sludge of the concentration section is better, and the concentration efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a sludge dewatering device of the present invention;
FIG. 2 is a schematic view of the internal structure of a sludge dewatering device of the present invention;
FIG. 3 is a schematic structural view of a middle concentration section support plate according to the present invention;
FIG. 4 is an exploded view of the dewatering chamber of the present invention;
reference numerals: 1-a mud bucket, 2-a cylindrical filter screen, 3-a concentration section support plate, 4-a concentration section speed reducing motor, 5-a concentration section spiral shaft, 6-a spiral blade, 7-a mud bucket, 8-a dehydration cavity, 9-a dehydration section support plate, 10-a dehydration section speed reducing motor, 11-a dehydration section spiral shaft, 12-an annular reinforcing hoop, 13-a sealing ring mounting seat, 14-a sealing ring, 15-a bolt, 16-a sliding shaft sleeve, 17-a concentration section sliding shaft sleeve, 18-a dehydration section sliding shaft sleeve, 19-a hole, 20-a fixed ring, 21-a movable ring, 22-a ring sheet fixing rod, 23-a gasket, 24-a back pressure plate and 25-a mounting hole.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the present invention is limited to the following embodiments, and various modifications, substitutions and changes made according to the ordinary technical knowledge and conventional means in the art without departing from the technical spirit of the present invention are included in the scope of the present invention.
With reference to fig. 1 to 4, a sludge dewatering device comprises a sludge concentration zone and a sludge dewatering zone communicated with the sludge concentration zone, wherein the sludge concentration zone and the sludge dewatering zone are arranged on the same horizontal line, the sludge dewatering device separates the concentration zone from the dewatering zone, and the concentration zone and the dewatering zone are respectively driven by a reduction motor and a screw shaft, the rotating speed of the screw shaft of the concentration zone and the rotating speed of the screw shaft of the dewatering zone are not influenced mutually, and can be respectively adjusted to have better internal stirring effect and high dewatering efficiency, so that the sludge concentration and dewatering speed is increased.
Specifically, the sludge concentration area comprises a sludge inlet hopper 1, the sludge inlet hopper 1 provides a sludge inlet space, and sludge enters the dewatering device from a sludge inlet pipe on the sludge inlet hopper 1.
A cylindrical filter screen 2 communicated with the mud inlet hopper 1 is arranged on one side end face of the mud inlet hopper 1, and in the embodiment, the cylindrical filter screen 2 is welded on the mud inlet hopper 1. The cylindrical filter screen 2 is formed by a plurality of metal strips which are arranged along the circumferential direction; and the size of the gap between the adjacent metal strips is smaller than the size of sludge flocculation particles. And a plurality of annular reinforcing hoops 12 are welded on the outer wall of the cylindrical filter screen 2, so that the change of the gap size caused by the displacement of metal strips in the operation process is prevented, and further the concentration of sludge is influenced.
And a concentration section support plate 3 is arranged at one end of the cylindrical filter screen 2 which is not connected with the mud feeding hopper 1, and the cylindrical filter screen 2 is welded on the concentration section support plate 3.
And a concentration section speed reducing motor 4 is arranged on the other end face of the sludge inlet hopper 1, and the concentration section speed reducing motor 4 is arranged to supply power to a concentration section. The concentration section speed reduction motor 4 is connected with a concentration section screw shaft 5, the concentration section screw shaft 5 is provided with a plurality of screw blades 6, the stirring effect on the concentration section sludge is better, and the concentration efficiency is improved.
The concentration section screw shaft 5 passes through the mud feeding hopper 1 and the cylindrical filter screen 2 to be connected with the concentration section support plate 3. Specifically, a sliding shaft sleeve 16 is arranged on the concentrated section support plate 3, and the sliding shaft sleeve 16 on the concentrated section support plate 3 is called a concentrated section sliding shaft sleeve 17 for convenient distinction; the concentration section screw shaft 5 is in clearance fit with the concentration section sliding shaft sleeve 17, and the concentration section sliding shaft sleeve 17 is used for limiting the concentration section screw shaft 5 to only rotate.
The concentration section screw shaft 5 is driven by the concentration section gear motor 4 to rotate, so that the sludge is concentrated and is driven to move to the sludge dehydration area.
A sealing ring mounting seat 13 is arranged at the joint of the concentration section speed reducing motor 4 and the sludge inlet hopper 1, and a sealing ring 14 is arranged in the sealing ring mounting seat 13; the outer wall of the concentrating section spiral shaft 5 is in interference fit with the inner wall of the sealing ring 14, so that the water leakage condition at the mud inlet end can be prevented.
The sludge dewatering zone comprises a sludge discharge hopper 7, and the sludge discharge hopper 7 provides a sludge discharge space. And a dewatering cavity 8 is arranged on one side end face of the sludge outlet hopper 7, and the dewatering cavity extrudes and dewaters sludge from the sludge concentration area.
Specifically, the dewatering cavity 8 comprises a plurality of fixed rings 20, a movable ring 21 arranged between the adjacent fixed rings 20, and a ring sheet fixing rod 22 which passes through the fixed rings 20 and is installed between the mud bucket 7 and the dewatering section support plate 9; a gasket 23 is further disposed on the ring sheet fixing rod 22 and between adjacent fixed rings 20.
The other side end of the dewatering cavity 8 is connected with a dewatering section support plate 9, namely the dewatering cavity 8 is arranged between the mud bucket 7 and the dewatering section support plate 9. Specifically, nuts are respectively arranged at two side ends of the ring piece fixing rod 22, and the dewatering cavity 8 is respectively fixed on the end surfaces of the mud bucket 7 and the dewatering section support plate 9 through the nuts.
And a dewatering section speed reducing motor 10 is arranged on the end face of the other side of the sludge outlet hopper 7, and the dewatering section speed reducing motor 10 provides power for the operation of the dewatering section. The dewatering section speed reducing motor 10 is connected with a dewatering section screw shaft 11, and the dewatering section screw shaft 11 penetrates through the mud bucket 7, the dewatering cavity 8 and the dewatering section support plate 9. A sliding shaft sleeve 16 is arranged on the dewatering section support plate 9, and the sliding shaft sleeve 16 on the dewatering section support plate 9 is called a dewatering section sliding shaft sleeve 18 for convenient distinction; the dewatering section screw shaft 11 is in clearance fit with the dewatering section sliding shaft sleeve 18.
The dewatering section speed reducing motor 10, the dewatering section screw shaft 11 and the dewatering section sliding shaft sleeve 18 are concentrically arranged, and the dewatering section screw shaft 11 is driven by the dewatering section speed reducing motor 10 to rotate, is matched with the fixed ring 20 and the movable ring 21, extrudes sludge for dewatering, and drives the sludge to move towards the discharge port of the sludge discharge hopper 7.
The concentration section support plate 3 is connected with the dehydration section support plate 9 through a bolt 15. Namely, the dewatering device is connected into a whole through the concentration section support plate 3 and the dewatering section support plate 9.
A plurality of holes 19 are respectively formed in the corresponding positions of the concentration section support plate 3 and the dehydration section support plate 9; the holes 19 are distributed along the periphery of the sliding shaft sleeve 16. Referring to fig. 3, fig. 3 is a schematic structural diagram of the middle concentration section supporting plate 3 of the present invention, and the structure of the dewatering section supporting plate 9 is the same as that of the concentration section supporting plate 3. In this embodiment, the number of the holes is 4, and the holes are arranged in a fan-shaped structure. And the arrangement of the holes enables the sludge treated by the sludge concentration zone to be transported to the sludge dewatering zone.
A back pressure plate 24 is arranged between the dewatering section speed reducing motor 10 and the dewatering section spiral shaft 11; and the back pressure plate 24 is positioned in the mud bucket 7. The back pressure plate 24 is arranged for adjusting the sludge dewatering pressure.
The dewatering device further comprises mounting holes 25 formed in the bottoms of the sludge concentration area and the sludge dewatering area, and as a preferred scheme of the embodiment, the mounting holes 25 are respectively formed in the bottoms of the sludge inlet hopper 1, the bottoms of the concentration section support plates 3 and the dewatering section support plates, and the bottom of the sludge outlet hopper 7. The dehydration engine is mounted to the stand for use through the mounting holes 25.
In the specific process of sludge dewatering, after the sludge is flocculated in the external flocculation device, a sludge-water mixture is formed and enters the dewatering device from a sludge inlet pipe on the sludge inlet hopper 1, and the concentration section speed reduction motor 4 drives the concentration section spiral shaft 5 to rotate so as to send the sludge into a sludge concentration area. The sewage in the sludge-water mixture after entering the sludge concentration area flows out through the cylindrical filter screen 2, and the sludge flocculation particles are retained in the dewatering device and are pushed to move towards the sludge dewatering area by the spiral shaft 5 of the concentration section because the gap size of the cylindrical filter screen 2 is smaller than the size of the sludge flocculation particles. The water content of the sludge particles is gradually reduced in the sludge concentration area, and the sludge concentration is gradually increased.
Sludge particles enter the sludge dewatering area from the sludge concentration area through the holes 19, and are discharged through the discharge port of the sludge discharge hopper 7 after being extruded and dewatered through the matching of the dewatering section speed reducing motor 10, the dewatering section spiral shaft 11, the fixed ring 20 and the movable ring 21.
It is right above the utility model provides a sludge dewatering device has carried out detailed introduction, and it is right to have used specific individual example here the utility model discloses a structure and theory of operation have explained, and the description of above embodiment only is used for helping to understand the utility model discloses a method and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A sludge dewatering device is characterized in that: comprises a sludge concentration area and a sludge dewatering area communicated with the sludge concentration area;
the sludge concentration area comprises a sludge inlet hopper (1), a cylindrical filter screen (2) communicated with the sludge inlet hopper (1), a concentration section support plate (3) connected with the cylindrical filter screen (2), a concentration section speed reducing motor (4) arranged on the sludge inlet hopper (1), and a concentration section spiral shaft (5) arranged between the concentration section speed reducing motor (4) and the concentration section support plate (3); the concentration section screw shaft (5) is provided with a plurality of screw blades (6);
the sludge dewatering area comprises a sludge bucket (7), a dewatering cavity (8) communicated with the sludge bucket (7), a dewatering section support plate (9) connected with the dewatering cavity (8), a dewatering section speed reducing motor (10) arranged on the sludge bucket (7), and a dewatering section screw shaft (11) arranged between the dewatering section speed reducing motor (10) and the dewatering section support plate (9).
2. The sludge dehydrating apparatus of claim 1, wherein: the cylindrical filter screen (2) is formed by a plurality of metal strips which are arranged along the circumferential direction; and the size of the gap between the adjacent metal strips is smaller than the size of sludge flocculation particles.
3. The sludge dewatering apparatus according to claim 2, wherein: a plurality of annular reinforcing hoops (12) are arranged on the outer wall of the cylindrical filter screen (2).
4. The sludge dehydrating apparatus of claim 1, wherein: a sealing ring mounting seat (13) is arranged at the joint of the concentration section speed reducing motor (4) and the sludge inlet hopper (1), and a sealing ring (14) is arranged in the sealing ring mounting seat (13); the outer wall of the concentration section screw shaft (5) is in interference fit with the inner wall of the sealing ring (14).
5. The sludge dewatering apparatus according to claim 1, wherein: the concentration section support plate (3) is connected with the dehydration section support plate (9) through a bolt (15).
6. The sludge dehydrating apparatus of claim 5, wherein: sliding shaft sleeves (16) are respectively arranged on the concentration section support plate (3) and the dehydration section support plate (9); the concentration section screw shaft (5) and the dehydration section screw shaft (11) are respectively in clearance fit with the sliding shaft sleeve (16).
7. The sludge dehydrating apparatus of claim 6, wherein: a plurality of holes (19) are respectively arranged at the corresponding positions of the concentration section support plate (3) and the dehydration section support plate (9); the holes (19) are distributed along the periphery of the sliding shaft sleeve (16).
8. The sludge dewatering apparatus according to claim 1, wherein: the dewatering cavity (8) comprises a plurality of fixed rings (20), movable rings (21) arranged between the adjacent fixed rings (20) and ring piece fixing rods (22) which penetrate through the fixed rings (20) and are arranged between the mud bucket (7) and the dewatering section support plate (9); and a gasket (23) is also arranged on the ring piece fixing rod (22) and between the adjacent fixed rings (20).
9. The sludge dewatering apparatus according to claim 1, wherein: a back pressure plate (24) is arranged between the dewatering section speed reducing motor (10) and the dewatering section spiral shaft (11); and the back pressure plate (24) is positioned in the mud discharging hopper (7).
10. A sludge dehydrating apparatus according to any one of claims 1 to 9, wherein: and the device also comprises mounting holes (25) arranged at the bottoms of the sludge concentration zone and the sludge dewatering zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222706772.XU CN218089302U (en) | 2022-10-13 | 2022-10-13 | Sludge dewatering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222706772.XU CN218089302U (en) | 2022-10-13 | 2022-10-13 | Sludge dewatering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218089302U true CN218089302U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222706772.XU Active CN218089302U (en) | 2022-10-13 | 2022-10-13 | Sludge dewatering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218089302U (en) |
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2022
- 2022-10-13 CN CN202222706772.XU patent/CN218089302U/en active Active
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