CN209865519U

CN209865519U - Sludge dewatering device

Info

Publication number: CN209865519U
Application number: CN201920405362.7U
Authority: CN
Inventors: 王宝江; 闫炳桦; 周妙然
Original assignee: Chongqing Xiaoma Zhicheng Technology Co Ltd
Current assignee: Chongqing Xiaoma Zhicheng Technology Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-12-31
Anticipated expiration: 2029-03-28

Abstract

The utility model provides a sludge dewatering device belongs to sludge pretreatment technical field. It has solved the problem that current sludge pretreatment device can't effectual separate water from mud. This sludge dewatering device, including the storehouse body that has the inner chamber, the lateral part of the storehouse body is equipped with sludge water import and delivery port, sludge water import and delivery port are located the height that the height of the double-phase offside on the storehouse body and sludge water import is higher than the delivery port, the internal division board that is used for cutting apart into upper portion cavity and lower part cavity with the inner chamber that is equipped with of storehouse, the upper end that the division board slope set up and the division board is located the one side that the storehouse body was equipped with sludge water import, be equipped with the through-hole that is used for communicateing upper portion cavity and lower part cavity on the division board, be equipped with filter assembly. The utility model has the advantages of good separation effect, high efficiency and the like.

Description

Sludge dewatering device

Technical Field

The utility model belongs to the technical field of sludge pretreatment, a sludge dewatering device is related to.

Background

With the rapid development of our national cities and social economy, the construction of urban drainage infrastructures in our country makes great progress. In the rapid development of sewage treatment capacity, the treatment of intermediate sludge of sewage treatment is also important. The sludge treatment method mainly comprises landfill, incineration and land utilization in various forms. Sludge land utilization is considered as a disposal mode with the most development potential due to the advantages of less investment, low energy consumption, low operating cost, conversion of organic parts into soil conditioner components and the like. Before the sludge land is utilized, the sludge needs to be treated to remove water, harmful substances and the like in the sludge.

For example, the Chinese patent discloses a dewatering mechanism for sludge pretreatment (with the publication number of CN 208362159U), which comprises a sewage and waste feeding bin, a water outlet bin, a sludge storage bin and a sewage and waste separating component; the sewage and waste separation assembly is arranged below the sewage and waste feeding bin and comprises a separation bin and a separation control piece, wherein the separation bin is arranged below the sewage and waste feeding bin and communicated with the interior of the sewage and waste feeding bin, the separation control piece is arranged in the separation bin in a sliding manner, the lower part of the separation bin is discontinuously communicated with the sludge storage bin, and the water outlet bin is arranged on one side of the separation bin and communicated with the interior of the separation bin; through setting up dirty useless separation assembly, dirty waste liquid carries out solid useless initial separation by self gravity in the separation storehouse, cooperates the separation control piece simultaneously and combines the buoyancy of sewage, and the separation that carries out separation control piece and remove in-process mud and sewage downwards discharges outwards.

However, it has the following problems: the sludge water enters from the sewage feeding control part and then falls onto the floating plate to cause accumulation, the sludge is not easy to fall off from the floating plate, the buoyancy of the water to the floating plate is smaller than the gravity of the sludge acting on the floating plate, and the separation of the sludge and the water cannot be realized; if the sludge can fall off from the floating plate, water is discharged from the sludge control part, or the sludge is discharged from the water outlet bin, so that the aim of effective separation cannot be fulfilled.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing the sludge dewatering device capable of effectively separating sludge from water.

The purpose of the utility model can be realized by the following technical proposal:

the sludge dewatering device comprises a bin body with an inner cavity, wherein a sludge water inlet and a water outlet are arranged on the side part of the bin body, the sludge water inlet and the water outlet are positioned on two opposite sides of the bin body, the height of the sludge water inlet is higher than that of the water outlet, a separation plate for dividing the inner cavity into an upper cavity and a lower cavity is arranged in the bin body, the separation plate is obliquely arranged, the upper end of the separation plate is positioned on one side of the bin body, which is provided with the sludge water inlet, a through hole for communicating the upper cavity with the lower cavity is formed in the separation plate, a filtering component is arranged in the through hole, and a power unit for driving the separation plate to move up and down is arranged above the.

The bin body is cylindric, and the upper end is uncovered, and the anchor ring of division board and the inner wall sliding fit of inner chamber, the lower extreme of division board are located the one side that the bin body was equipped with the delivery port. The filter assembly can only pass water and air, blocking the sludge. The during operation, power unit drives the division board upward movement, make sludge water import and lower part cavity intercommunication, send sludge water to the lower part cavity in through sludge water import, when the liquid level in getting into the lower part cavity is about to reach the height of delivery port, stop sending into of sludge water, deposit behind a period, under the action of gravity, water can be located the top of mud, power unit drives the division board decline this moment, extrude the water and the mud that are located the lower part cavity, make water enter into the upper portion cavity through straining the subassembly, power unit drives the division board upward movement afterwards, make the water that enters into the upper portion cavity discharge in the delivery port gradually. And then the power unit continues to drive the partition plate to move up and down until the water in the lower cavity is completely discharged. In order to improve the separation efficiency and ensure the effective entering amount of sludge water, the height of the water outlet is higher than 1/2 of the height of the inner cavity.

In foretell sludge dewatering device, the through-hole be the loudspeaker form, the bore that the through-hole is located division board lower surface one end is greater than its bore that is located division board upper surface one end, filtering component include with through-hole internal surface cooperation set up and be the supporting sleeve of loudspeaker form, locate the filter screen one that supports the cover main aspects, locate the filter screen two that supports the cover tip and fill the filter pulp in the supporting sleeve, supporting sleeve and division board between be equipped with anti-disengaging structure. Support cover, filter screen one and filter screen two are made by metal or other hard materials, carry on spacingly to crossing the filter pulp jointly, cross the filter pulp and only enable water and air to pass through, block mud, for the convenience is changed to crossing the filter pulp, connects filter screen detachable on the support cover. Because the through hole is trumpet-shaped, the supporting sleeve is trumpet-shaped matched with the through hole, and the filtering component can fall off through the anti-falling structure after the supporting sleeve is arranged in the through hole.

Because the filtering component is positioned at the uppermost part of the lower cavity, and the sludge is mainly concentrated at the lower part of the lower cavity, when the separation plate moves downwards, the force of the sludge acting on the filtering component is small, and the filtering component cannot be damaged.

In the sludge dewatering device, the anti-disengaging structure comprises a plurality of lugs with connecting holes arranged at the large end of the support sleeve, threaded holes arranged on the lower surface of the partition plate in one-to-one correspondence with the connecting holes, and screws penetrating through the connecting holes.

The lug extends to the lower surface of the partition plate, the screw penetrates through the connecting hole and then is in threaded connection with the threaded hole, the lug is pressed on the lower surface of the partition plate, the purpose of fixing the support sleeve is achieved, and the support sleeve is prevented from falling off. The number of lugs may be arranged to be 2-6. Specifically, the number of lugs is 3 and evenly distributed.

In the sludge dewatering device, a horizontally extending sludge water inlet cylinder is arranged at the sludge water inlet, a feeding hopper is arranged above the sludge water inlet cylinder, a feeding screw rod extending along the axial direction of the feeding screw rod is arranged in the sludge water inlet cylinder, and a motor for driving the feeding screw rod to work is fixed on the sludge water inlet cylinder. One end of the feeding screw rod, which is far away from the bin body, is penetrated out by one end of the sludge water inlet barrel, and one end of the feeding screw rod, which is far away from the bin body, is in sealing fit with the sludge water inlet barrel, so that water is prevented from entering the motor. When the sludge storage bin works, the motor drives the feeding screw rod to rotate, and the threads on the feeding screw rod convey sludge water to the direction of the bin body. When the feeding screw rod feeds the sludge, the sludge water is stirred, so that the sludge and the water are primarily separated, and when the subsequent work is carried out, the convenient water is extruded from the sludge.

In the above sludge dewatering device, the power unit is a cylinder.

In the above sludge dewatering device, the power unit is a hydraulic cylinder. The piston rod of the hydraulic cylinder extends along the axial direction of the cavity, and the lower end of the piston rod of the hydraulic cylinder is fixedly connected with the middle part of the partition plate. The piston rod stretches and retracts to drive the partition plate to lift up and down.

In the sludge dewatering device, the water outlet is connected with a water outlet pipe extending downwards. Because the one end downwardly extending of outlet pipe is kept away from the storehouse body can not make water pile up in the outlet pipe, be favorable to discharging the water in the upper portion cavity completely.

In the sludge dewatering device, when the sludge water inlet is communicated with the lower cavity, the water outlet is communicated with the upper cavity. In the process that sludge water enters the lower cavity, the sludge water is prevented from being discharged through the water outlet. The power unit drives the partition plate to move up and down, and the partition plate has three state positions: 1. when sludge water is injected, the upper end of the partition plate is positioned at the upper part of the sludge water inlet, and the lower end of the partition plate is positioned at the lower part of the water outlet; 2. when the sludge water is extruded, the upper end of the partition plate is positioned at the lower part of the sludge water inlet, and the lower end of the partition plate is positioned at the lower part of the water outlet; 3. when water is drained, the lower end of the separation plate is close to the water outlet, and the water outlet is communicated with the lower end of the upper cavity but not communicated with the lower cavity.

In the above sludge dewatering device, a bin gate is arranged at the lower part of the bin body. When the bin gate is closed, the bin gate is in sealing fit with the bin body, and when water in sludge is removed, the bin gate is opened, so that the sludge in the lower cavity can be conveniently cleaned.

Compared with the prior art, the sludge dewatering device has the following advantages:

when squeezing the sludge water that lies in the cavity of lower part, enable the water that lies in mud to be extruded, water can enter into upper portion cavity through straining the subassembly and keep in, and mud then stays in the cavity of lower part, reduces the water content of mud, and along with the rising of division board, water can be discharged through the delivery port, and it is effectual, efficient to the separation of sludge water.

Drawings

Fig. 1 is a schematic diagram of a first state of the pretreatment device provided by the present invention.

Fig. 2 is a schematic diagram of a second state of the pretreatment device provided by the present invention.

Fig. 3 is a cross-sectional view of a filter assembly provided by the present invention.

In the figure, 1, a cabin body; 2. a sludge water inlet; 3. a water outlet; 4. an upper cavity; 5. a lower cavity; 6. a partition plate; 7. a support sleeve; 8. a first filter screen; 9. a second filter screen; 10. filtering cotton; 11. feeding sludge water into a barrel; 12. a hopper; 13. a feed screw; 14. a motor; 15. a hydraulic cylinder; 16. and (5) discharging a water pipe.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2 sludge dewatering device, including the storehouse body 1 that has the inner chamber, the lateral part of the storehouse body 1 is equipped with sludge water inlet 2 and delivery port 3, sludge water inlet 2 is located the height that the two opposite sides of the storehouse body 1 and sludge water inlet 2 highly is higher than delivery port 3 with delivery port 3, be equipped with in the storehouse body 1 and be used for cutting apart into upper portion cavity 4 and lower part cavity 5's division board 6 with the inner chamber, 6 slopes to set up and the upper end of division board 6 is located one side that the storehouse body 1 was equipped with sludge water inlet 2, be equipped with the through-hole that is used for communicateing upper portion cavity 4 and lower part cavity 5 on the division board 6, be equipped with filter assembly in the through-hole, the top of the storehouse body 1 is equipped with the power pack who is used for driving division board 6 up-. Specifically, the rotation stopping structure comprises a limiting strip arranged on the inner wall of the inner cavity and extending along the axial direction of the inner cavity, and a notch arranged on the partition plate 6 and matched with the limiting strip in a sliding manner.

In this embodiment, the storehouse body 1 is cylindric, and the upper end is uncovered, and the anchor ring of division board 6 and the inner wall sliding fit of inner chamber, the lower extreme of division board 6 are located the one side that the storehouse body 1 was equipped with delivery port 3. The filter assembly can only pass water and air to block the sludge.

The during operation, power unit drives 6 upward movements of division board, make sludge water import 2 and lower part cavity 5 intercommunication, deliver to lower part cavity 5 through sludge water import 2 with sludge water in, when the liquid level that gets into in lower part cavity 5 is about to reach the height of delivery port 3, stop sending into of sludge water, deposit a period of time back, under the action of gravity, water can be located the top of mud, power unit drives division board 6 and descends this moment, extrude water and mud that lie in lower part cavity 5, make water enter into upper portion cavity 4 through straining the subassembly, power unit drives 6 upward movements of division board afterwards, make the water that enters into in upper portion cavity 4 discharge in following delivery port 3 gradually. The power unit then continues to move the divider plate 6 up and down until the water in the lower chamber 5 is completely drained. In order to improve the separation efficiency and ensure the effective entering amount of sludge water, the height of the water outlet 3 is higher than 1/2 of the height of the inner cavity.

In this embodiment, the through-hole is trumpet-shaped, the bore of the through-hole at one end of the lower surface of the partition plate 6 is larger than the bore of the through-hole at one end of the upper surface of the partition plate 6, as shown in fig. 3, the filter assembly comprises a support sleeve 7 which is arranged in a way of matching with the inner surface of the through-hole and is trumpet-shaped, a first filter screen 8 which is arranged at the large end of the support sleeve 7, a second filter screen 9 which is arranged at the small end of the support sleeve 7, and filter cotton 10 which is filled in the support sleeve 7, and an. Support cover 7, filter screen 8 and filter screen two 9 and make by metal or other hard materials, carry on spacingly to filtering cotton 10 jointly, filter cotton 10 and only enable water and air to pass through, block mud, for the convenience change filtering cotton 10, connect filter screen 8 detachable on supporting cover 7. Because the through hole is trumpet-shaped, the supporting sleeve 7 is trumpet-shaped matched with the through hole, and the filtering component can fall off through the anti-falling structure after the supporting sleeve 7 is arranged in the through hole. Since the filter assembly is located at the uppermost portion of the lower chamber 5 and sludge is mainly concentrated at the lower portion of the lower chamber 5, when the partition plate 6 moves downward, the force of the sludge acting on the filter assembly is small, and the filter assembly is not damaged.

In this embodiment, the anti-disengaging structure includes a plurality of lugs with connecting holes, which are disposed at the large end of the support sleeve 7, threaded holes, which are disposed on the lower surface of the partition plate 6 and are in one-to-one correspondence with the connecting holes, and screws, which are disposed in the connecting holes in a penetrating manner. The lug extends to the lower surface of the partition plate 6, the screw penetrates through the connecting hole and then is in threaded connection with the threaded hole, the lug is pressed on the lower surface of the partition plate 6, the purpose of fixing the support sleeve 7 is achieved, and the support sleeve 7 is prevented from falling off. The number of lugs may be arranged to be 2-6. Specifically, the number of lugs is 3 and evenly distributed.

As shown in fig. 1 and 2, a horizontally extending sludge water inlet barrel 11 is arranged at the sludge water inlet 2, a charging hopper 12 is arranged above the sludge water inlet barrel 11, a feeding screw 13 extending along the axial direction of the feeding screw is arranged in the sludge water inlet barrel 11, and a motor 14 for driving the feeding screw 13 to work is fixed on the sludge water inlet barrel 11. One end of the feeding screw 13, which is far away from the bin body 1, is penetrated out from one end of the sludge water inlet barrel 11, and one end of the feeding screw 13, which is far away from the bin body 1, is in sealing fit with the sludge water inlet barrel 11, so that water is prevented from entering the motor 14. When the sludge storage bin works, the motor 14 drives the feeding screw 13 to rotate, and the threads on the feeding screw 13 convey sludge water to the direction of the bin body 1. The feeding screw 13 stirs the sludge water during feeding to primarily separate the sludge from the water, and facilitates the water to be extruded from the sludge during subsequent work.

Wherein the power unit is a hydraulic cylinder 15. The piston rod of the hydraulic cylinder 15 extends along the axial direction of the cavity, and the lower end of the piston rod of the hydraulic cylinder 15 is fixedly connected with the middle part of the partition plate 6. The piston rod stretches and retracts to drive the partition plate 6 to lift up and down.

As shown in fig. 1 and 2, a water outlet pipe 16 extending downwards is connected to the water outlet 3. Because the end of the water outlet pipe 16 far away from the bin body 1 extends downwards, water is not accumulated in the water outlet pipe 16, and the water in the upper cavity 4 is completely drained.

When the sludge water inlet 2 is communicated with the lower cavity 5, the water outlet 3 is communicated with the upper cavity 4. In the process that sludge water enters the lower cavity 5, the sludge water is prevented from being discharged through the water outlet 3. The power unit drives the partition plate 6 to move up and down, and the partition plate 6 has three state positions: 1. when sludge water is injected, the upper end of the partition plate 6 is positioned at the upper part of the sludge water inlet 2, and the lower end of the partition plate 6 is positioned at the lower part of the water outlet 3; 2. when the sludge water is extruded, the upper end of the partition plate 6 is positioned at the lower part of the sludge water inlet 2, and the lower end of the partition plate 6 is positioned at the lower part of the water outlet 3; 3. when water is drained, the lower end of the partition plate 6 is close to the water outlet 3, and at the moment, the water outlet 3 is communicated with the lower end of the upper cavity 4 but not communicated with the lower cavity 5.

In this embodiment, the lower part of the bin body 1 is provided with a bin gate. When the bin gate is closed, the bin gate is in sealing fit with the bin body 1, and after water in sludge is removed, the bin gate is opened, so that the sludge in the lower cavity 5 can be conveniently cleaned.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A sludge dewatering device comprises a bin body (1) with an inner cavity, a sludge water inlet (2) and a water outlet (3) are arranged on the side part of the bin body (1), it is characterized in that the sludge water inlet (2) and the water outlet (3) are positioned on two opposite sides of the bin body (1), the height of the sludge water inlet (2) is higher than that of the water outlet (3), a partition plate (6) for dividing the inner cavity into an upper cavity (4) and a lower cavity (5) is arranged in the bin body (1), the partition plate (6) is obliquely arranged, the upper end of the partition plate (6) is positioned at one side of the bin body (1) provided with the sludge water inlet (2), the partition plate (6) is provided with a through hole for communicating the upper cavity (4) and the lower cavity (5), the through hole is internally provided with a filtering component, and a power unit for driving the partition board (6) to move up and down is arranged above the bin body (1).

2. The sludge dewatering device according to claim 1, wherein the through hole is horn-shaped, the caliber of the through hole at one end of the lower surface of the separation plate (6) is larger than the caliber of the through hole at one end of the upper surface of the separation plate (6), the filter assembly comprises a support sleeve (7) which is matched with the inner surface of the through hole and is horn-shaped, a filter screen I (8) which is arranged at the large end of the support sleeve (7), a filter screen II (9) which is arranged at the small end of the support sleeve (7) and filter cotton (10) which is filled in the support sleeve (7), and an anti-falling structure is arranged between the support sleeve (7) and the separation plate (6).

3. The sludge dewatering device according to claim 2, wherein the anti-dropping structure comprises a plurality of lugs with connecting holes arranged at the large end of the support sleeve (7), threaded holes arranged on the lower surface of the partition plate (6) and corresponding to the connecting holes in a one-to-one manner, and screws arranged in the connecting holes in a penetrating manner.

4. The sludge dewatering device according to claim 1, characterized in that a horizontally extending sludge water inlet cylinder (11) is arranged at the sludge water inlet (2), a feeding hopper (12) is arranged above the sludge water inlet cylinder (11), a feeding screw (13) extending along the axial direction of the feeding screw is arranged in the sludge water inlet cylinder (11), and a motor (14) for driving the feeding screw (13) to work is fixed on the sludge water inlet cylinder (11).

5. The sludge dewatering apparatus of claim 1, wherein the power unit is a hydraulic cylinder (15).

6. The sludge dewatering device according to claim 1, characterized in that a water outlet pipe (16) extending downwards is connected to the water outlet (3).

7. Sludge dewatering apparatus according to claim 1, characterised in that the water outlet (3) communicates with the upper chamber (4) when the sludge water inlet (2) communicates with the lower chamber (5).

8. The sludge dewatering device according to claim 1, characterized in that a bin gate is provided at the lower part of the bin body (1).