CN213652123U

CN213652123U - Suspended sludge filtering tank

Info

Publication number: CN213652123U
Application number: CN202022449408.0U
Authority: CN
Inventors: 王大亮; 吴国强
Original assignee: Shaanxi Lvying Environmental Protection Technology Co ltd
Current assignee: Shaanxi Lvying Environmental Protection Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-07-09
Anticipated expiration: 2030-10-29

Abstract

The utility model relates to a suspension sludge filtration jar has solved the mud-water separation efficiency that exists among the prior art and filter fineness lower and the high problem of content of separation back impurity. The upper end of the central sludge collector is open, and the lower part of the central sludge collector is communicated with a sludge collecting hopper through a fluid director; the sludge collecting hopper is isolated from the diffusion cone, and a sludge discharge pipe is arranged at the lower end of the sludge collecting hopper; the rotational flow water inlet device penetrates through the mud collecting hopper, and the upper end of the rotational flow water inlet device is communicated with the diffusion cone; the lower part of the rotational flow water inlet device is provided with a water inlet pipe which is communicated with the rotational flow water inlet device along the tangential direction; the sludge interceptor is positioned between the water collector and the central sludge collector, and a gap is arranged between the sludge interceptor and the central sludge collector; a water outlet pipe is arranged on the lateral surface of the upper part outside the tank body; the water outlet pipe and the water collector are positioned on the same plane. The utility model provides a suspension sludge filtration jar, its simple structure, convenient operation filter fineness are high, the separation back impurity content is low.

Description

Suspended sludge filtering tank

Technical Field

The utility model relates to a sludge filtration jar, concretely relates to suspension sludge filtration jar.

Background

At present, in the sewage treatment process, in order to improve the sewage treatment effect, the treatment requirements including coagulant and other formula combinations are mostly required to be added into the sewage, and then gravity type precipitation separation or membrane filtration is adopted. The oil field oily sewage treatment mainly adopts the technological process of sedimentation-filtration. However, the gravity type precipitation separation equipment has large volume, low separation efficiency and high suspended matter in the effluent; the membrane filtration has high cost and is easy to block and pollute. The process flow of sedimentation-filtration is adopted, and the process treatment difficulty is increased due to the high content of impurities such as oil, suspended matters and the like in the effluent of the sedimentation section; meanwhile, the sludge in the sedimentation system can not be effectively discharged, and the sludge forms vicious circle in the system, thereby influencing the quality of the sedimentation effluent, causing the increase of the filtering pressure of the filtering section, serious pollution of the filtering material and difficult filtering and back washing.

In conclusion, the gravity type precipitation separation equipment has the advantages of complex structure, high operation difficulty, low mud-water separation efficiency and filtration precision and high content of impurities after separation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that the mud-water separation efficiency that exists among the prior art is lower and the content of separation back impurity is high with filter fineness, and provide a suspension sludge filtration jar.

The technical scheme of the utility model is that:

the suspended sludge filtering tank is characterized in that: comprises a tank body; a diffusion cone is formed in the middle area in the tank body; a sludge interceptor and a water collector are arranged above the diffusion cone, a rotational flow water inlet device and a sludge collecting hopper are arranged below the diffusion cone, and a central sludge collector and a fluid director are arranged in the diffusion cone;

the upper end of the central sludge collector is open, and the lower part of the central sludge collector is communicated with a sludge collecting hopper through a fluid director; the sludge collecting hopper is isolated from the diffusion cone, and a sludge discharge pipe is arranged at the lower end of the sludge collecting hopper;

the rotational flow water inlet device penetrates through the mud collecting hopper, and the upper end of the rotational flow water inlet device is communicated with the diffusion cone;

the lower part of the rotational flow water inlet device is provided with a water inlet pipe which is communicated with the rotational flow water inlet device along the tangential direction;

the sludge interceptor is positioned between the water collector and the central sludge collector, and a gap is arranged between the sludge interceptor and the central sludge collector;

a water outlet pipe is arranged on the side surface of the upper part outside the tank body; the water outlet pipe and the water collector are positioned on the same plane.

Based on the above scheme, the utility model discloses following optimization has still been done:

furthermore, the sludge interceptor comprises two groups of inclined pipe units which are symmetrically arranged and a bracket for supporting the inclined pipe units, wherein the inclined pipe units comprise a plurality of inclined pipes which are obliquely arranged side by side, and the inclined pipes are inclined towards the inner surface of the tank body from the central axis of the tank body; the oblique angle of the inclined tube is 60-75 degrees, and the vertical height is 1 meter.

Furthermore, the mud collecting hopper is in an inverted cone shape, and the cone angle is 90-120 degrees.

Further, the water collector comprises a radial area and an annular area, and the annular area is communicated with the water outlet pipe; the radiation area is arranged in a cross shape or a rice shape.

Further, the tank body is provided with three or four support legs; the landing legs are evenly distributed at the bottom of the tank body along the circumferential direction.

Further, the top of the tank body is an oval cover.

Further, the axial direction of the fluid director is perpendicular to the side wall of the mud collecting hopper.

Furthermore, an observation window is arranged on the outer side surface of the tank body; the horizontal center of the observation window is flush with the upper edge of the central sludge collector. The observation window is used for setting the water pressure according to the conditions of observing the water flow and the separation effect in the tank body.

Further, the bottom of the water collector is at least 0.3 meter away from the sludge interceptor.

Further, the ratio of the diameter of the rotational flow water inlet device to the diameter of the middle part of the tank body is 0.2-0.34; the ratio of the axial length of the swirling water inlet device to the diameter of the water inlet pipe is more than or equal to 10.

The utility model has the advantages that:

1. the utility model discloses suspension sludge filtration jar, its simple structure, convenient operation, owing to set up the multiplicable filter fineness of mud interceptor, can effectual reduction separate the high problem of content of back impurity.

2. The utility model discloses suspension sludge filter jar because the mud collecting bucket lateral wall is provided with the angle with the axial direction of the jar body, can effectual messenger jar internal suspension that produces like this quick from jar internal mud discharging port, increase mud discharging efficiency.

3. The utility model discloses suspension sludge filtration jar, water collector are provided with cross radiation district and annular district, can effectual collection water purification like this, and can make the quick outflow by the outlet pipe of water purification.

4. The utility model discloses suspension sludge filter jar, divertor axial direction are perpendicular with the lateral wall of mud collection fill, can make mud flow into mud collection fill fast.

Drawings

FIG. 1 is a schematic structural view of a suspended sludge filtration tank of the present invention;

FIG. 2 is a radial cross-sectional view of the top of the suspended sludge filtration tank of the present invention;

FIG. 3 is a radial cross-sectional view of the middle part of the suspended sludge filtration tank of the present invention;

fig. 4 is a schematic diagram of the flowing process of the mud water in the suspended sludge filtering tank of the utility model.

Description of reference numerals: 1-cyclone water inlet device, 2-sludge discharge pipe, 3-sludge collecting hopper, 4-diffusion cone, 5-fluid director, 6-central sludge collector, 7-observation window, 8-sludge interceptor, 9-tank body 9, 10-water collector, 11-water outlet pipe, 12-supporting leg, 13-water inlet pipe and 14-suspended sludge layer.

Detailed Description

The technical solution of the present invention is described in detail and fully with reference to the accompanying drawings.

As shown in fig. 1 to 3, the utility model provides a suspended sludge filtering tank, which comprises a tank body 9; a diffusion cone 4 is formed in the middle area in the tank body 9; a sludge interceptor 8 and a water collector 10 are arranged above the diffusion cone 4, a rotational flow water inlet device 1 and a sludge collecting hopper 3 are arranged below the diffusion cone 4, and a central sludge collector 6 and a fluid director 5 are arranged in the diffusion cone 4;

the top of the tank body 9 is an elliptical cover; the upper end of the central sludge collector 6 is open, and the lower part of the central sludge collector is communicated with the sludge collecting hopper 3 through a fluid director 5; the axial direction of the fluid director 5 is vertical to the side wall of the mud collecting hopper 3; the sludge collecting hopper 3 is isolated from the diffusion cone 4, and the lower end of the sludge collecting hopper 3 is provided with a sludge discharge pipe 2; the mud collecting hopper 3 is in an inverted cone shape, and the cone angle is 90 degrees; the rotational flow water inlet device 1 penetrates through the mud collecting hopper 3, and the upper end of the rotational flow water inlet device is communicated with the diffusion cone 4; the lower part of the rotational flow water inlet device 1 is provided with a water inlet pipe 13, and the water inlet pipe 13 is communicated with the rotational flow water inlet device 1 along the tangential direction; the sludge interceptor 8 is positioned between the water collector 10 and the central sludge collector 6, and a gap is arranged between the sludge interceptor and the central sludge collector 6; a water outlet pipe 11 is arranged on the lateral surface of the outer upper part of the tank body 9; the water outlet pipe 11 and the water collector 10 are positioned on the same plane.

The sludge interceptor (8) comprises two groups of inclined pipe units which are symmetrically arranged and a bracket for supporting the inclined pipe units, wherein the inclined pipe units comprise a plurality of inclined pipes which are obliquely arranged side by side, and the inclined pipes are inclined towards the inner surface of the tank body (9) from the central axis of the tank body (9); the oblique angle of the inclined tube is 60-75 degrees, and the vertical height is 1 meter.

Triangular weirs are arranged at the tops of all sides of the water collector 10; the water collector 10 comprises a radial area and an annular area, and the annular area is communicated with the water outlet pipe 11; the radial zones are arranged in a cross-shape, as shown in fig. 2.

The tank body 9 is provided with three support legs 12; are uniformly distributed at the bottom of the tank body 9 along the circumferential direction;

two rectangular observation windows 7 which are symmetrical to each other are arranged on the outer side surface of the tank body 9; the width of the observation window 7 is 15cm, and the height is 1 m; the horizontal center of the observation window 7 is flush with the upper edge of the central sludge collector 6.

The distance from the bottom of the water collector 10 to the sludge interceptor 8 is 0.3 m.

The ratio of the diameter of the swirling water inlet device 1 to the diameter of the middle part of the tank body 9 is 5/24; the ratio of the axial length of the swirling water inlet device 1 to the diameter of the water inlet pipe 13 is 10.

Based on the technical scheme, the mud-water separation process is explained in detail, and the working process is as follows:

as shown in fig. 4: the sewage is added with a treatment agent, is fully mixed and then enters the rotational flow water inlet device 1 through the water inlet pipe 13 along the tangential direction, forms rotational flow spiral upward flow in the rotational flow water inlet device 1, enters the diffusion cone 4, then gradually reduces the flow velocity, and continues to spirally upward flow. In the process, various colloidal particles and microparticles in the sewage are adsorbed on the surface of a coagulant, suspended small particles are coagulated into large compact flocs, and a very compact suspended sludge layer 14 with the thickness of dozens of centimeters is formed around the upper edge of the central sludge collector 6, so that the suspended sludge layer can play an extremely important role in the sewage treatment process. The lower surface layer of the sludge layer is continuously increased and thickened along with the movement of the flocs from bottom to top; meanwhile, as the filtered water flows upwards, the suspended sludge layer is guided to continuously flow into the central sludge collector 6, and the upper surface layer is continuously reduced and thinned. In this way, a dynamic equilibrium of the thickness of the suspended sludge layer is achieved. When the coagulated effluent passes through the suspended sludge layer 14 from bottom to top, the suspended sludge layer 14 intercepts all impurities such as suspended colloid particles, emulsified oil, floc and the like on the suspended sludge layer 14 by virtue of interface physical adsorption, electrochemical characteristics and van der Waals force action, so that the effluent quality reaches the index of recycling or reinjection. Sewage enters the sludge interceptor 8 after being filtered by the suspended sludge layer 14, an inclined pipe is arranged in the sludge interceptor 8, mud and water are further separated under the action of the shallow pool principle, the sludge falls downwards to the suspended sludge layer 14 and then flows into the central sludge collector 6, and purified water flows upwards to the water collector 10 and finally flows out from the water outlet pipe 11. Sludge in the central sludge collector 6 gradually moves downwards under the action of gravity, enters the sludge collecting hopper 3 through the fluid director 5, moves towards the bottom of the sludge collecting hopper 3 and is discharged through the sludge discharge pipe 2.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and it is obvious for a person skilled in the art to modify the specific technical solutions described in the foregoing embodiments or to equally replace some technical features of the foregoing embodiments, and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions protected by the present invention.

Claims

1. Suspension sludge filter jar, its characterized in that: comprises a tank body (9); a diffusion cone (4) is formed in the middle area in the tank body (9); a sludge interceptor (8) and a water collector (10) are arranged above the diffusion cone (4), a rotational flow water inlet device (1) and a sludge collecting hopper (3) are arranged below the diffusion cone (4), and a central sludge collector (6) and a fluid director (5) are arranged in the diffusion cone (4);

the upper end of the central sludge collector (6) is open, and the lower part of the central sludge collector is communicated with the sludge collecting hopper (3) through a fluid director (5); the sludge collecting hopper (3) is isolated from the diffusion cone (4), and the lower end of the sludge collecting hopper (3) is provided with a sludge discharge pipe (2);

the rotational flow water inlet device (1) penetrates through the mud collecting hopper (3), and the upper end of the rotational flow water inlet device is communicated with the diffusion cone (4);

a water inlet pipe (13) is arranged at the lower part of the rotational flow water inlet device (1), and the water inlet pipe (13) is communicated with the rotational flow water inlet device (1) along the tangential direction;

the sludge interceptor (8) is positioned between the water collector (10) and the central sludge collector (6), and a gap is arranged between the sludge interceptor and the central sludge collector (6);

a water outlet pipe (11) is arranged on the lateral surface of the outer upper part of the tank body (9); the water outlet pipe (11) and the water collector (10) are positioned on the same plane.

2. The suspended sludge filtration tank of claim 1, wherein: the sludge interceptor (8) comprises two groups of inclined pipe units which are symmetrically arranged and a bracket for supporting the inclined pipe units, wherein the inclined pipe units comprise a plurality of inclined pipes which are obliquely arranged side by side, and the inclined pipes are inclined towards the inner surface of the tank body (9) from the central axis of the tank body (9); the oblique angle of the inclined tube is 60-75 degrees, and the vertical height is 1 meter.

3. The suspended sludge filtration tank of claim 1 or 2, wherein: the mud collecting hopper (3) is in an inverted cone shape, and the cone angle is 90-120 degrees.

4. The suspended sludge filtration tank of claim 3, wherein: the water collector (10) comprises a radial area and an annular area, and the annular area is communicated with the water outlet pipe (11); the radiation area is arranged in a cross shape or a rice shape.

5. The suspended sludge filtration tank of claim 4, wherein: the tank body (9) is provided with three or four support legs (12); the supporting legs (12) are uniformly distributed at the bottom of the tank body (9) along the circumferential direction.

6. The suspended sludge filtration tank of claim 5, wherein: the top of the tank body (9) is an elliptic cover.

7. The suspended sludge filtration tank of claim 6, wherein: the axial direction of the fluid director (5) is vertical to the side wall of the mud collecting hopper (3).

8. The suspended sludge filtration tank of claim 7, wherein: an observation window (7) is arranged on the outer side surface of the tank body (9); the horizontal center of the observation window (7) is flush with the upper edge of the central sludge collector (6).

9. The suspended sludge filtration tank of claim 8, wherein: the bottom of the water collector (10) is at least 0.3 meter away from the sludge interceptor (8).

10. The suspended sludge filtration tank of claim 9, wherein: the ratio of the diameter of the rotational flow water inlet device (1) to the diameter of the middle part of the tank body (9) is 0.2-0.34; the ratio of the axial length of the rotational flow water inlet device (1) to the diameter of the water inlet pipe (13) is more than or equal to 10.