CN218392366U

CN218392366U - Sludge concentration device

Info

Publication number: CN218392366U
Application number: CN202222197894.0U
Authority: CN
Inventors: 杨恒; 何文丽; 田丽森; 王彦芳; 赵金; 刘少非
Original assignee: China ENFI Engineering Corp
Current assignee: China ENFI Engineering Corp
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2023-01-31
Anticipated expiration: 2032-08-19

Abstract

The utility model discloses a sludge concentration device, which comprises a tank body, a water distribution pipe and a guide cylinder, wherein the tank body is provided with a cylindrical section cavity, a conical section cavity and a sludge discharge port, the conical section cavity is positioned below the cylindrical section cavity and is communicated with the cylindrical section cavity, and the sludge discharge port is arranged on the wall surface of the conical section cavity; the water distribution pipe is positioned outside the cylindrical section cavity, an outlet of the water distribution pipe is communicated with the cylindrical section cavity, and the opening direction of the outlet of the water distribution pipe is tangential to the inner wall of the cylindrical section cavity; the guide shell is arranged in the cylindrical section cavity, the lower end of the guide shell is open, and the guide shell and the conical section cavity are spaced in the up-down direction. The utility model discloses a sludge concentration device unpowered component, the operation process is simple, and the energy consumption is low, and sludge concentration is effectual.

Description

Sludge concentration device

Technical Field

The utility model belongs to the technical field of sewage treatment technique and specifically relates to a sludge concentration device is related to.

Background

The sewage contains solid particles, and in the sewage treatment process, the solid shell usually forms sludge with certain water content, and the sludge is inconvenient to convey, treat or dispose due to high water content and large volume. The sludge concentration can primarily reduce the volume of the sludge, greatly reduce the volume of the sludge and bring convenience for subsequent treatment or disposal. Gravity concentration is a common form at present, a continuous flow concentration tank with a mud scraper is usually adopted in a gravity concentration tank, and the concentration efficiency is low, the occupied area is large, the retention time is long, and the overall manufacturing cost is high because the sludge concentration is carried out only by the action of gravity. In addition, the mud scraper requires frequent maintenance during operation.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a sludge concentration device with low energy consumption.

The utility model discloses sludge concentration device, include:

the sludge discharging tank comprises a tank body, a sludge discharging port and a sludge discharging pipe, wherein the tank body is provided with a cylindrical section cavity, a conical section cavity and the sludge discharging port, the conical section cavity is positioned below the cylindrical section cavity and is communicated with the cylindrical section cavity, and the sludge discharging port is arranged on the wall surface of the conical section cavity;

the water distribution pipe is positioned outside the cylindrical section cavity, an outlet of the water distribution pipe is communicated with the cylindrical section cavity, and the opening direction of the outlet of the water distribution pipe is tangent to the inner wall of the cylindrical section cavity; and

the guide cylinder is arranged in the cylindrical section cavity, the lower end of the guide cylinder is open, and the guide cylinder and the conical section cavity are spaced in the vertical direction.

The utility model discloses sludge concentration device unpowered component, the operation process is simple, and the energy consumption is low, and sludge concentration is effectual.

In some embodiments, the number of the water distribution pipes is multiple, each water distribution pipe is arranged on the tank body, and the multiple water distribution pipes are uniformly distributed around the cylindrical section cavity.

In some embodiments, the water distribution pipe is provided with a gate valve and a pressure gauge; or the water distribution pipe is provided with an electric valve and a pressure transmitter.

In some embodiments, still include trunk line and a plurality of connecting pipe, the trunk line encircles the jar of body setting, the trunk line is equipped with the inlet, the trunk line with a plurality of the connecting pipe intercommunication, it is a plurality of the connecting pipe one-to-one with a plurality of the water distributor connection.

In some embodiments, the main pipeline is in a closed-loop annular shape, optionally, the main pipeline includes a plurality of segments of branch pipelines, the segments of branch pipelines are sequentially connected end to form an annular shape surrounding the tank body, and two adjacent branch pipelines are detachably connected through a flange.

In some embodiments, a drain outlet is arranged on the main pipeline, the drain outlet and the liquid inlet are positioned on two sides of the tank body, and a valve is arranged on the drain outlet.

In some embodiments, the sludge thickening apparatus further comprises a honeycomb chute, the honeycomb chute being disposed within the draft tube.

In some embodiments, the sludge concentrating apparatus further comprises an overflow weir and a drain pipe, the overflow weir is arranged in the guide cylinder, the overflow weir is located above the honeycomb inclined pipe, a through hole is formed in the bottom wall surface of the overflow weir, one end of the drain pipe is arranged on the overflow weir and is communicated with the through hole, the other end of the drain pipe is located outside the tank body, and the one end of the drain pipe is higher than the other end.

In some embodiments, an upper edge of the weir is at least 0.7m above an upper edge of the honeycomb chute; and/or the honeycomb inclined tube comprises a plurality of inclined tubes, the height of each inclined tube in the vertical direction is 0.8-1.2 m, an acute included angle between each inclined tube and the horizontal plane is 60 degrees, and the inner diameter of each inclined tube is 50mm.

In some embodiments, the lower edge of the honeycomb inclined tube is equal to the lower edge of the guide shell, and the lower edge of the guide shell is higher than the upper edge of the conical section cavity by at least 0.5m.

Drawings

FIG. 1 is a schematic structural view of a sludge thickening apparatus according to an embodiment of the present invention;

fig. 2 is a schematic sectional view of a sludge thickening apparatus according to an embodiment of the present invention.

Reference numerals are as follows:

a sludge thickening apparatus 100;

the device comprises a tank body 1, a cylindrical section cavity 11, a conical section cavity 12 and a sludge discharge port 13;

a water distribution pipe 2, a gate valve 21 and a pressure gauge 22;

a guide shell 3 and a drain pipe 4;

a main pipeline 5, a liquid inlet 51, a branch pipeline 52, a sewage draining outlet 53 and a valve 531;

honeycomb inclined pipe 6, overflow weir 7 and connecting pipe 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 2, a sludge thickening apparatus 100 according to an embodiment of the present invention includes a tank 1, a water distributor 2, and a draft tube 3. The tank body 1 is provided with a cylindrical section cavity 11, a conical section cavity 12 and a sludge discharge port 13, the conical section cavity 12 is positioned below the cylindrical section cavity 11 and is communicated with the cylindrical section cavity 11, and the sludge discharge port 13 is arranged on the wall surface of the conical section cavity 12. The water distribution pipes 2 are positioned outside the cylindrical section cavity 11, the outlets of the water distribution pipes 2 are communicated with the cylindrical section cavity 11, and the opening directions of the outlets of the water distribution pipes 2 are tangent to the inner wall of the cylindrical section cavity 11. The guide shell 3 is arranged in the cylindrical section cavity 11, the lower end of the guide shell 3 is open, and the guide shell 3 and the conical section cavity 12 are spaced in the up-down direction.

The utility model discloses sludge concentration device 100 is arranged in the sewage treatment process to carry out the concentration of mud-water separation and mud to sewage. The inlet of the water distribution pipe 2 is communicated with sewage, and the sewage enters the cylindrical section cavity 11 of the tank body 1 from the outlet of the water distribution pipe 2. The opening direction of the outlet of the water distribution pipe 2 is tangent to the inner wall of the cylindrical section cavity 11, so that the sewage entering the cylindrical section cavity 11 forms rotational flow. In addition, in the cylindrical section cavity 11, an annular space formed between the outer peripheral surface of the guide cylinder 3 and the inner wall surface of the cylindrical section cavity 11 limits and guides the flow of the entering sewage, so that the short circuit of water flow is reduced, the formation of sewage rotational flow is facilitated, and the occurrence degree of rotational flow is improved.

In the rotational flow process, the specific gravity of the sludge is higher than that of water, and the sludge moves towards the wall surface of the cylindrical section cavity 11 under the action of centrifugal force, so that the first-step separation of the sewage is realized to form the sludge and supernatant. Along with the continuation of the rotational flow motion, mud descends along the internal wall of cylinder section cavity 11 gradually, deposits in the conic section cavity 12 at last, because conic section cavity 12 dwindles from top to bottom gradually to further strengthen the compression precipitation effect of mud, realize the second step separation of mud and water, further reduce the moisture content of mud, the mud after the concentration can discharge jar body 1 through mud discharging port 13. Meanwhile, along with the continuous sewage injection in the tank body 1 and the continuous rotational motion, the supernatant after sewage separation enters the guide cylinder 6 and gradually rises so as to be discharged out of the tank body 1.

And the guide shell 3 and the conical section cavity 12 are spaced in the vertical direction, so that a buffer zone is formed between the guide shell 3 and the conical section cavity 12, water and sludge are further separated in the zone due to different rising resistances caused by different specific gravities of the water and the sludge, the amount of the sludge carried by supernatant fluid flowing to the guide shell 3 can be reduced, and the sludge content of the supernatant fluid is further reduced.

The utility model discloses sludge concentration device 100 does not have power unit, and the operation process is simple, and the energy consumption is low, and sludge concentration is effectual.

Specifically, referring to fig. 1 and 2, the sludge thickening apparatus 100 includes a tank 1, a draft tube 3, a water distributor 2, a main pipe 5, and a plurality of connection pipes 8.

The draft tube 3 is arranged in the cylindrical section cavity 11 of the tank body 1, the draft tube 3 and the cylindrical section cavity 11 are coaxially arranged, and an annular space formed between the outer peripheral surface of the draft tube 3 and the inner wall surface of the cylindrical section cavity 11 is a space with the same radial size at each position, so that the formation of sewage rotational flow is facilitated. The sludge and the supernatant are separated by the rotational flow of the sewage, the sludge sinks and is deposited and compressed in the conical section cavity 12, then the sludge can be discharged from the sludge discharge port 13, and the supernatant flows upwards along the inner cavity of the guide shell 3.

Referring to fig. 2, the sludge discharge port 13 is located at the lower end of the conical section cavity 12, so as to facilitate the discharge of sludge in the conical section cavity 12.

In some embodiments, the number of the water distribution pipes 2 is multiple, each water distribution pipe 2 is arranged on the tank body 1, and the multiple water distribution pipes 2 are uniformly distributed around the cylindrical section cavity 11. The utility model discloses sludge concentration device 100 is through setting up a plurality of evenly distributed's water distributor 2 to form a plurality of whirl, a plurality of whirl coincide in the annular space that forms between the outer peripheral face of draft tube 3 and the internal face of jar body 1 and strengthen the whirl effect of sewage, the centrifugal force that the increase whirl formed, thereby further strengthen the mud-water separation effect of whirl in-process.

Further, in order to ensure the water distribution uniformity of each water distribution pipe 2, in some embodiments, a gate valve 21 and a pressure gauge 22 are arranged on each water distribution pipe 2, and the opening of each gate valve 21 is adjusted to equalize the sewage pressure of each water distribution pipe 2, that is, the sewage pressure entering the cylindrical section cavity 11 from each water distribution pipe 2 is equalized, so that the water distribution amount of each water distribution pipe 2 is ensured to be balanced, and the disturbance of the formed rotational flow caused by the sewage is avoided, thereby further ensuring the rotational flow effect of the sewage.

In other embodiments, the water distributor 2 is provided with an electric valve and a pressure transmitter. The pressure transmitter detects the pressure of the sewage in the water distribution pipes 2 and converts the pressure signal into an electric signal to be supplied to the electric valve for opening adjustment, thereby realizing automatic control of the sewage pressure of each water distribution pipe 2.

The main pipeline 5 surrounds the tank body 1, the main pipeline 5 is provided with a liquid inlet 51, the main pipeline 5 is communicated with a plurality of connecting pipes 8, and the connecting pipes 8 are connected with the water distribution pipes 2 in a one-to-one correspondence mode. The main pipeline 5 is communicated with the water distribution pipes 2 through the connecting pipes 8, and sewage enters the main pipeline 5 and then is discharged into the connecting pipes 8 to form a plurality of flowing branches, so that the pipeline layout is optimized.

Specifically, referring to fig. 1, the connecting pipe 8 is detachably connected to the water distributor 2 via a flange, so that the connecting pipe 8 and the water distributor 2 can be easily repaired and cleaned.

In some embodiments, the main pipe 5 is in a closed loop to form an annular passage, so that the distribution of sewage in the annular passage is more uniform, and the sewage pressure distribution in the main pipe 5 is more uniform, so that the sewage pressure of each water distributor 3 can be adjusted to be the same.

In some embodiments, the main pipeline 5 includes a plurality of branch pipelines 52, the plurality of branch pipelines 52 are connected end to end in sequence to form a ring shape surrounding the tank 1, and two adjacent branch pipelines 52 are detachably connected through a flange. The detachable connection between two adjacent branch pipelines 52 through flanges also facilitates the detachment and maintenance of the main pipeline 5.

The main pipe 5 is provided with a sewage outlet 53, the sewage outlet 53 and the liquid inlet 51 are positioned at two sides of the tank body 1, and the sewage outlet 53 is provided with a valve 531. If the main pipe 5 is blocked, the gate valve 21 or the electric valve 23 on each water distribution pipe is closed, the valve 531 is opened, the liquid inlet 51 is communicated with fluid, the fluid flows in the main pipe 5 and flows out from the sewage outlet 53, and the main pipe 5 is flushed by the power of the fluid so as to eliminate the blockage.

Specifically, as shown in fig. 1, the fluid enters the main pipe 5 from the fluid inlet 51, and flows clockwise and counterclockwise to drive the plugging material to flow to the drain outlet 53 and then to be discharged.

Preferably, the liquid inlet 51 and the drain 53 are located at both sides of the tank 1 in a radial direction thereof, so that flow paths of the fluid at the left and right sides are the same to ensure a flushing effect of the fluid on the left and right sides of the main pipe 5.

In some embodiments, the sludge thickening apparatus 100 further comprises a honeycomb inclined tube 6, and the honeycomb inclined tube 6 is arranged in the guide shell 3. The honeycomb inclined tube 6 is positioned in the ascending path of the supernatant, sludge and water in the supernatant can be further separated, the separated sludge falls into the conical cavity 12 along the honeycomb inclined tube 6, and the separated water phase continuously ascends.

In some embodiments, the lower edge of the honeycomb inclined tube 6 is equal to the lower edge of the guide shell 3, and the lower edge of the guide shell 3 is at least 0.5m higher than the upper edge of the conical section cavity 12. Namely, the height of a buffer zone formed between the guide shell 3 and the conical section cavity 12 is at least 0.5m, so that a large amount of sludge can be prevented from rising into the honeycomb inclined tube 6, the amount of sludge carried by supernatant liquid when flowing to the guide shell 3 can be further reduced, the sludge content of the supernatant liquid can be further reduced, and the honeycomb inclined tube 6 can be prevented from being blocked.

In some embodiments, the honeycomb inclined tube 6 comprises a plurality of inclined tubes, the height of each inclined tube in the up-down direction is 0.8m-1.2m, the acute included angle between each inclined tube and the horizontal plane is 60 degrees, and the inner diameter of each inclined tube is 50mm, so that the sludge-water separation of the supernatant is further ensured, and the sludge is further prevented from rising.

Specifically, the height of the chute in the up-down direction may be 0.8m, 1m, or 1.2m.

In some embodiments, the sludge thickening apparatus 100 further comprises an overflow weir 7 and a drain pipe 4, the overflow weir 7 is disposed in the draft tube 3, the overflow weir 7 is located above the honeycomb inclined tube 6, a through hole is disposed on a bottom wall surface of the overflow weir 7, one end of the drain pipe 4 is disposed on the overflow weir 7 and is communicated with the through hole, the other end of the drain pipe 4 is located outside the tank body 1, and the one end of the drain pipe 4 is higher than the other end. The supernatant fluid flows to the upper edge of the overflow weir 7 and then enters an annular flow channel formed by the overflow weir 7 and the guide cylinder 3, and then flows to the through hole of the overflow weir 7 from the annular flow channel and is discharged out of the tank body 1 through the drain pipe 4.

The arrangement of the overflow weir 7 not only can form the liquid level of discharged water, but also can discharge the water more uniformly.

In some embodiments, the upper edge of the weir 7 is at least 0.7m above the upper edge of the honeycomb chute 6. The region between the overflow weir 7 and the honeycomb inclined tube 6 forms a buffer zone for upward flow of sludge in the supernatant, and the water and sludge are further separated in the region due to the difference in the rising resistance caused by the difference in specific gravity between the water and the sludge to reduce the sludge content of the supernatant flowing to the overflow weir 7, thereby further improving the sludge-water separation effect.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A sludge thickening apparatus, comprising:

the sludge pump comprises a tank body (1), wherein the tank body (1) is provided with a cylindrical section cavity (11), a conical section cavity (12) and a sludge discharge port (13), the conical section cavity (12) is positioned below the cylindrical section cavity (11) and is communicated with the cylindrical section cavity (11), and the sludge discharge port (13) is arranged on the wall surface of the conical section cavity (12);

the water distribution pipe (2) is positioned outside the cylindrical section cavity (11), an outlet of the water distribution pipe (2) is communicated with the cylindrical section cavity (11), and the opening direction of the outlet of the water distribution pipe (2) is tangential to the inner wall of the cylindrical section cavity (11); and

the guide shell (3) is arranged in the cylindrical section cavity (11), the lower end of the guide shell (3) is open, and the guide shell (3) and the conical section cavity (12) are spaced in the up-down direction.

2. The sludge thickening apparatus according to claim 1, wherein the number of the water distribution pipes (2) is plural, each water distribution pipe (2) is provided on the tank (1), and the plural water distribution pipes (2) are uniformly distributed around the cylindrical section cavity (11).

3. The sludge thickening apparatus according to claim 2, wherein a gate valve (21) and a pressure gauge (22) are provided on the water distribution pipe (2); or an electric valve and a pressure transmitter are arranged on the water distribution pipe (2).

4. The sludge concentrating apparatus according to claim 2, further comprising a main pipe (5) and a plurality of connecting pipes (8), wherein the main pipe (5) is arranged around the tank body (1), the main pipe (5) is provided with a liquid inlet (51), the main pipe (5) is communicated with the plurality of connecting pipes (8), and the plurality of connecting pipes (8) are connected with the plurality of water distribution pipes (2) in a one-to-one correspondence manner.

5. The sludge thickening apparatus according to claim 4, wherein the main pipe (5) is in a closed loop ring shape, the main pipe (5) comprises a plurality of sections of branch pipes (52), the plurality of sections of branch pipes (52) are sequentially connected end to form a ring shape surrounding the tank body (1), and two adjacent branch pipes (52) are detachably connected through flanges.

6. The sludge thickening apparatus according to claim 4, wherein a drain outlet (53) is provided on the main pipe (5), the drain outlet (53) and the liquid inlet (51) are located on both sides of the tank body (1), and a valve (531) is provided on the drain outlet (53).

7. The sludge thickening apparatus according to claim 1, further comprising a honeycomb chute (6), wherein the honeycomb chute (6) is provided in the draft tube (3).

8. The sludge concentration device according to claim 7, further comprising an overflow weir (7) and a drain pipe (4), wherein the overflow weir (7) is arranged in the guide shell (3), the overflow weir (7) is positioned above the honeycomb inclined pipe (6), a through hole is arranged on the bottom wall surface of the overflow weir (7), one end of the drain pipe (4) is arranged on the overflow weir (7) and communicated with the through hole, the other end of the drain pipe (4) is positioned outside the tank body (1), and the one end of the drain pipe (4) is higher than the other end.

9. Sludge thickening apparatus according to claim 8, wherein the upper edge of the overflow weir (7) is at least 0.7m higher than the upper edge of the honeycomb chute (6); and/or the honeycomb inclined tube (6) comprises a plurality of inclined tubes, the height of each inclined tube in the vertical direction is 0.8-1.2 m, an acute angle included angle between each inclined tube and the horizontal plane is 60 degrees, and the inner diameter of each inclined tube is 50mm.

10. The sludge concentration device according to claim 7, wherein the lower edge of the honeycomb inclined tube (6) is equal to the lower edge of the guide shell (3), and the lower edge of the guide shell (3) is at least 0.5m higher than the upper edge of the conical section cavity (12).