CN111875213A - Centrifugal type precipitation concentration tank and use method - Google Patents
Centrifugal type precipitation concentration tank and use method Download PDFInfo
- Publication number
- CN111875213A CN111875213A CN202010725517.2A CN202010725517A CN111875213A CN 111875213 A CN111875213 A CN 111875213A CN 202010725517 A CN202010725517 A CN 202010725517A CN 111875213 A CN111875213 A CN 111875213A
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- Prior art keywords
- tank
- tank body
- sedimentation
- filler
- water
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
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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
Abstract
The invention discloses a centrifugal sedimentation concentration tank, which comprises: the device comprises a tank body, sedimentation tank filler, a fixed support, a motor, a stirring shaft and a paddle board; the sedimentation tank filler is hermetically connected with the side wall of the upper part in the tank body; a fixed support is arranged on the inner side wall of the tank body, the fixed support is positioned at the bottom end of the filler of the sedimentation tank, a motor is arranged at the top of the fixed support, the motor is in driving connection with a stirring shaft, the stirring shaft penetrates through the filler of the sedimentation tank, the bottom end of the stirring shaft is close to the bottom end of the tank body, and a paddle board is arranged on the stirring shaft; the inner side wall of the tank body is provided with an effluent weir, and the effluent weir is positioned at the upper part of the filler of the sedimentation tank; the side wall of the upper part of the tank body is provided with a water outlet which is positioned at the upper part of the filler of the sedimentation tank and is communicated with the effluent weir; a water inlet is arranged on the side wall of the middle part of the tank body, and the water inlet is positioned at the lower part of the filler of the sedimentation tank; the side wall of the bottom end of the tank body is provided with a sludge discharge port. The centrifugal sedimentation concentration tank has the advantages of good sedimentation and concentration effects, short mud-water separation time, small occupied area and simple structure, and is suitable for wide application and popularization.
Description
Technical Field
The invention belongs to the technical field of sludge treatment, and particularly relates to a centrifugal sedimentation concentration tank.
Background
At present, most of common mud and water treatment sedimentation tanks or concentration tanks adopt the principle of gravity separation to separate or concentrate mud and water, namely, the density difference between water substances and water is adopted, and solid particles descend or float upwards by virtue of gravity, so that the mud and water separation or concentration is realized. The free settling of solid particles is slow, so that the sludge-water separation or concentration time is too long, the hydraulic retention time of a conventional sedimentation tank is generally 1.5-4.0 hours, the sludge concentration tank needs to be 12-24 hours, the sedimentation/concentration effect is poor, and the occupied area is large.
Therefore, the centrifugal sedimentation concentration tank which has good sedimentation and concentration effects, short mud-water separation time and small occupied area is a problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above, the present invention provides a centrifugal sedimentation concentration tank.
The technical scheme is as follows:
a centrifugal sedimentation concentrator tank comprising: the device comprises a tank body, sedimentation tank filler, a fixed support, a motor, a stirring shaft and a paddle board;
the sedimentation tank filler is hermetically connected with the side wall of the upper part in the tank body;
the inner side wall of the tank body is provided with a fixed support, the fixed support is positioned at the bottom end of the filler of the sedimentation tank and is used for supporting the filler of the sedimentation tank, the motor is arranged at the top of the fixed support, the motor is in driving connection with a stirring shaft, the stirring shaft penetrates through the filler of the sedimentation tank, the bottom end of the stirring shaft is close to the bottom end of the tank body, and the stirring shaft is provided with a paddle board;
the inner side wall of the tank body is provided with an effluent weir, and the effluent weir is positioned at the upper part of the filler of the sedimentation tank;
the side wall of the upper part of the tank body is provided with a water outlet which is positioned at the upper part of the filler of the sedimentation tank and is communicated with the effluent weir;
the side wall of the middle part of the tank body is provided with a water inlet which is positioned at the lower part of the filler of the sedimentation tank and is positioned in the paddle board area;
the side wall of the bottom end of the tank body is provided with a sludge discharge port.
Adopt above-mentioned further beneficial effect: compared with the traditional sedimentation tank, the sedimentation tank saves a sludge hopper and the like, and has simpler structure.
The working principle of the invention is as follows: when the muddy water mixture passes through in the water inlet tangential entering cell body, under the tangential force effect of the thrust of rivers and cell body, the muddy water mixture forms the whirl at the cell body, the impurity of aquatic is because the density difference tentatively forms centrifugal action, at this moment, motor drive paddle board stirs the muddy water mixture of cell body with higher speed, the muddy water mixture of cell body forms high-speed whirl, the impurity of aquatic is got rid of the cell body edge because the density difference forms high-speed centrifugal action, under the dual function of centrifugation and gravity, the material that the density is big than water is piled up the concentration in the bottom of cell body, discharge the cell body through the mud discharging port. The water inlet, the water outlet, the stirring and the sludge discharge are simultaneously and continuously, and the sludge discharge can adopt indirect or continuous sludge discharge according to the amount of the sludge. When the sludge pump rotates at a high speed, the centrifugal force can evenly distribute and accumulate the separated sludge at the periphery of the bottom in the tank body, and the sludge at the periphery can be supplemented to the sludge discharge port after the sludge is discharged from the sludge discharge port. And the mixture of impurities and water with similar density to the water in the separated part passes through the sedimentation tank filler, mud-water separation is carried out again due to the shallow tank theory, mud returns to the tank body along the sedimentation tank filler under the action of gravity for centrifugal separation again, and finally water is uniformly collected by the effluent weir and then is discharged out of the tank body through the water outlet.
The invention has the beneficial effects that: the centrifugal sedimentation concentration tank has the advantages of good sedimentation and concentration effects, small occupied area and simple structure, and is suitable for wide application and popularization.
Furthermore, the filler of the sedimentation tank is an inclined plate or an inclined pipe.
Further, the paddle boards are uniformly distributed and installed on the stirring shaft, and the distance between the paddle board installed at the tail end of the stirring shaft and the bottom of the pool body is more than 0.2 m.
Adopt above-mentioned further beneficial effect: the sludge-water separation is carried out by adopting a mode of combining centrifugal separation and an inclined tube (plate), and the treatment effect is better.
Furthermore, a valve is arranged at the sludge discharge port.
Adopt above-mentioned further beneficial effect: the sludge discharge port is provided with a valve, and indirect or continuous sludge discharge can be adopted according to the amount of sludge.
The invention also provides a use method of the centrifugal sedimentation concentration tank, which is characterized by comprising the following steps:
(1) the mud-water mixture tangentially enters the tank body through the water inlet;
(2) starting a motor, rotating a stirring shaft, accelerating and stirring the mud-water mixture in the tank body by a paddle board, forming high-speed rotational flow by the mud-water mixture, accumulating and concentrating impurities with density higher than that of water at the bottom end of the tank body, separating mud from water again by a mixture formed by the impurities with density close to that of the water and water through a sedimentation tank filler, returning the impurities to the tank body along the sedimentation tank filler under the action of gravity, and continuously stirring;
(3) after mud and water are separated by the filler of the sedimentation tank, water is uniformly collected by the effluent weir and then is discharged out of the tank body through the water outlet; mud returns to the bottom of the tank body to be accumulated, and impurities are discharged out of the tank body through the mud discharge port by opening the valve at the mud discharge port.
Further, the rotational speed of the stirring shaft is 60r/min or more.
Adopt above-mentioned further beneficial effect: the mud-water separation time can be shortened to 15-20min, while the traditional method needs more than 60min, and the treatment efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
the method comprises the following steps of 1-tank body, 2-sedimentation tank filler, 3-fixed support, 4-motor, 5-stirring shaft, 6-paddle board, 7-effluent weir, 8-water outlet, 9-water inlet and 10-sludge discharge port.
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 some embodiments, not all embodiments, of the present invention 1. 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.
In the description of the present invention, it is to be understood that the terms "central," "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 are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the 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 such 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," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
As shown in fig. 1, the embodiment of the present invention discloses a centrifugal sedimentation concentration tank, comprising: the device comprises a tank body 1, sedimentation tank filler 2, a fixed support 3, a motor 4, a stirring shaft 5 and a paddle board 6; the sedimentation tank filler 2 is hermetically connected with the side wall of the upper part in the tank body 1; the inner side wall of the tank body 1 is provided with a fixed support 3, the fixed support 3 is positioned at the bottom end of the sedimentation tank filler 2 and is used for supporting the sedimentation tank filler 2, the motor 4 is arranged at the top of the fixed support 3, the motor 4 is in driving connection with a stirring shaft 5, the stirring shaft 5 penetrates through the sedimentation tank filler 2, the bottom end of the stirring shaft 5 is close to the bottom end of the tank body 1, and the stirring shaft 5 is provided with a paddle 6; an effluent weir 7 is arranged on the inner side wall of the tank body 1, and the effluent weir 7 is positioned at the upper part of the sedimentation tank filler 2; a water outlet 8 is arranged on the side wall of the upper part of the tank body 1, and the water outlet 8 is positioned on the upper part of the sedimentation tank filler 2 and is communicated with a water outlet weir 7; a water inlet 9 is formed in the side wall of the middle of the tank body 1, and the water inlet 9 is positioned at the lower part of the sedimentation tank filler 2 and is positioned in the area of the paddle board 6; the side wall of the bottom end of the tank body 1 is provided with a sludge discharge port 10.
The working principle of the invention is as follows: when the muddy water mixture enters the tank body 1 through the water inlet 9 in a tangential direction, the muddy water mixture forms a rotational flow in the tank body 1 under the thrust of water flow and the shearing force of the tank body 1, and a centrifugal effect is primarily formed due to the density difference of impurities in water. At this time, the motor 4 drives the paddle 6 to accelerate and stir the slurry-water mixture in the tank 1, the slurry-water mixture in the tank 1 forms a high-speed rotational flow, impurities in the water are thrown to the side of the tank 1 by a high-speed centrifugal action due to density difference, and substances with a density higher than that of the water are accumulated and concentrated at the bottom end of the tank 1 under the dual actions of centrifugation and gravity, and are discharged out of the tank 1 through the sludge discharge port 10. And the mixture of impurities and water with similar density to the water in the separated part passes through the sedimentation tank filler 2, mud-water separation is carried out again due to the shallow tank theory, mud returns to the tank body 1 along the sedimentation tank filler 2 under the action of gravity for centrifugal separation again, and finally water is uniformly collected by the effluent weir 7 and then is discharged out of the tank body 1 through the water outlet 8. The centrifugal sedimentation concentration tank has the advantages of good sedimentation and concentration effects, small occupied area and simple structure, and is suitable for wide application and popularization.
In one embodiment, the sedimentation basin packing 2 is an inclined plate or an inclined tube.
In one embodiment, a valve is provided at the sludge discharge port 10.
In one embodiment, the paddles 6 are uniformly distributed and installed on the stirring shaft 5, and the distance between the paddles 6 installed at the end of the stirring shaft 5 and the bottom of the tank body 1 is more than 0.2 m.
The invention also provides a use method of the centrifugal sedimentation concentration tank, which comprises the following steps:
(1) the mud-water mixture tangentially enters the tank body 1 through the water inlet 9;
(2) starting a motor 4, rotating a stirring shaft 5, wherein the rotating speed of the stirring shaft 5 is more than 60r/min, accelerating the stirring of the mud-water mixture in the pool body 1 by a paddle board 6, forming high-speed rotational flow by the mud-water mixture, wherein impurities with the density higher than that of water are accumulated and concentrated at the bottom end of the pool body 1, performing mud-water separation again on a mixture formed by part of impurities with the density close to that of the water and water through a sedimentation pool filler 2, returning the impurities to the pool body 1 along the sedimentation pool filler 2 under the action of gravity, and continuously stirring;
(3) after mud and water are separated by the sedimentation tank filler 2, water is uniformly collected by the effluent weir 7 and then is discharged out of the tank body 1 through the water outlet 8; mud is returned to the bottom of the tank body 1 and is accumulated, and impurities are discharged out of the tank body through the mud discharging port 10 by opening a valve at the mud discharging port 10.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A centrifugal sedimentation concentrator, comprising: the device comprises a tank body, sedimentation tank filler, a fixed support, a motor, a stirring shaft and a paddle board;
the sedimentation tank filler is hermetically connected with the side wall of the upper part in the tank body;
the stirring shaft is connected with the motor in a driving mode, penetrates through the sedimentation tank filler, the bottom end of the stirring shaft is close to the bottom end of the tank body, and a paddle board is mounted on the stirring shaft;
the inner side wall of the tank body is provided with an effluent weir, and the effluent weir is positioned at the upper part of the filler of the sedimentation tank;
the side wall of the upper part of the tank body is provided with a water outlet which is positioned at the upper part of the filler of the sedimentation tank and is communicated with the effluent weir;
the side wall of the middle part of the tank body is provided with a water inlet, and the water inlet is positioned at the lower part of the filler of the sedimentation tank and is positioned in the position of the paddle board area;
the side wall of the bottom end of the tank body is provided with a sludge discharge port.
2. The centrifugal type sedimentation concentration tank as claimed in claim 1, wherein the sedimentation tank packing is an inclined plate or an inclined tube.
3. The centrifugal sedimentation concentration tank as claimed in claim 1, wherein the paddles are uniformly distributed on the stirring shaft, and the paddle at the end of the stirring shaft is spaced from the bottom of the tank by a distance of 0.2m or more.
4. The centrifugal sedimentation concentrator of claim 1, wherein a valve is provided at the sludge discharge port.
5. A method of using a centrifugal sedimentation concentrator as claimed in any one of claims 1 to 4, comprising the steps of:
(1) the mud-water mixture tangentially enters the tank body through the water inlet;
(2) starting a motor, rotating a stirring shaft, accelerating and stirring the mud-water mixture in the tank body by a paddle board, forming high-speed rotational flow by the mud-water mixture, accumulating and concentrating impurities with density higher than that of water at the bottom end of the tank body, separating mud from water again by a mixture formed by the impurities with density close to that of the water and water through a sedimentation tank filler, returning the impurities to the tank body along the sedimentation tank filler under the action of gravity, and continuously stirring;
(3) after mud and water are separated by the filler of the sedimentation tank, water is uniformly collected by the effluent weir and then is discharged out of the tank body through the water outlet; mud returns to the bottom of the tank body to be accumulated, and impurities are discharged out of the tank body through the mud discharge port by opening the valve at the mud discharge port.
6. The method of claim 5, wherein the rotational speed of the stirring shaft is 60r/min or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725517.2A CN111875213A (en) | 2020-07-24 | 2020-07-24 | Centrifugal type precipitation concentration tank and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725517.2A CN111875213A (en) | 2020-07-24 | 2020-07-24 | Centrifugal type precipitation concentration tank and use method |
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| CN111875213A true CN111875213A (en) | 2020-11-03 |
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| CN202010725517.2A Pending CN111875213A (en) | 2020-07-24 | 2020-07-24 | Centrifugal type precipitation concentration tank and use method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112374654A (en) * | 2020-11-20 | 2021-02-19 | 荆州科美科技有限公司 | Glass edging effluent treatment plant |
| CN112843798A (en) * | 2020-12-28 | 2021-05-28 | 应康伟 | Sewage treatment device capable of carrying out sludge treatment |
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| US20120228217A1 (en) * | 2009-12-01 | 2012-09-13 | Jinmin Li | Method and apparatus for sluge treatment and use thereof in sewage biotreatment |
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