CN212102535U

CN212102535U - Store mud pond with concentration function

Info

Publication number: CN212102535U
Application number: CN202020437433.4U
Authority: CN
Inventors: 冯云刚; 李振川; 刘雷斌
Original assignee: Beijing General Municipal Engineering Design and Research Institute Co Ltd
Current assignee: Beijing General Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-12-08
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a sludge storage tank with concentration function, which comprises a sludge storage tank body, a sludge inlet pipe, a sludge inlet diffusion elbow, a turbulent flow cylinder, an overflow water outlet groove, a guide plate, a cross bracket, a sludge outlet pipe and a water outlet pipe; the mud storage tank body is formed by integrating a cylindrical water storage tank at the upper part and an inverted conical mud sedimentation tank at the lower part; the central position in the water storage pool is vertically provided with a turbulence barrel, the upper end of the turbulence barrel is fixed with a top cover of the water storage pool, the lower end of the turbulence barrel is a water outlet, an umbrella-shaped guide plate for bearing water is correspondingly arranged below the water outlet, the bottom end position of the guide plate is not lower than the top of the mud sedimentation pool, and the contour of the bottom end of the guide plate is horizontally positioned between the water outlet and the upper port of the mud sedimentation pool; the bottom of the guide plate is fixedly supported by a cross bracket, and the periphery of the cross bracket is fixed with the side wall of the water storage tank. The utility model discloses the water distribution is more even, avoids former water intake mode to lead to the destruction of the rivers of intaking to the mud floc in the pond, adopts a turbulent flow section of thick bamboo to carry out the turbulent flow to mud, makes the system operation more stable, and it is more even to go out mud.

Description

Store mud pond with concentration function

Technical Field

The utility model relates to a sewage treatment facility technical field specifically is a store mud pond with concentrated function.

Background

With the gradual enhancement of the economic strength of the country and the gradual improvement of the living standard and environmental awareness of people, the construction work of sewage treatment plants in vast rural areas and even villages has been started. Compared with a large-scale urban sewage treatment plant, the sewage treatment plant in the villages and the towns is smaller in scale and small in residual sludge amount, and if a sludge storage tank and a sludge storage tank are respectively constructed, the tank body is smaller, and construction and operation maintenance are inconvenient. If the pool is blindly large, anaerobic fermentation of sludge can be caused, and phosphorus release and H can be caused₂S and other toxic and harmful gases are generated, and the total occupied area of the constructed pool bodies is large and the engineering cost is high. The construction of water and mud storage tanks has become a difficult point which currently plagues the construction of sewage plants in villages and towns or villages.

At present, two common concentration modes are adopted in sewage plants: mechanical concentration and gravity concentration. The mechanical concentration is carried out to obtain excess sludge, the excess sludge is concentrated by a mechanical concentration device, mainly comprising a centrifugal concentrator and a belt concentrator, the excess sludge with the water content of 99.2 percent is directly pumped to the concentration device by an excess sludge pump, and the water content of the concentrated sludge can be reduced to 92-98 percent. The gravity concentration mainly depends on the gravity to realize mud-water separation, and the water content of the discharged mud can also reach 96-98%. The traditional gravity water storage tank mud inlet pipe is directly connected to the turbulent flow cylinder through the downward bent elbow above the liquid level, and the water inlet mode is unfavorable for the formation and the precipitation of flocs.

At present, a sludge storage tank is commonly adopted by sewage plants to keep the balance between sludge from an excess sludge pump and sludge entering of a dehydrator and is used as a buffer tank of excess sludge. At present, a sludge storage tank is generally designed to be rectangular, and the design has the defects of dead angles, uneven stirring and easy sludge deposition at the bottom of the tank body at one side far away from a water outlet. The deposited sludge is easy to be fermented anaerobically, causing the sludge to float upwards and accompany with H₂S、CH₄And the generation of toxic and harmful gases, the solution is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a store mud pond with concentrated function, its aim at solve current mud pond of storing and do not have concentrated function, the rivers of intaking take shape and deposit interference, cell body to flocculating constituent in the pond and have dead angle, go out the inhomogeneous problem of mud.

The utility model adopts the following technical scheme:

a mud storage pool with a concentration function comprises a mud storage pool body, a mud inlet pipe, a mud inlet diffusion elbow, a turbulent flow cylinder, an overflow water outlet groove, a guide plate, a cross bracket, a mud outlet pipe and a water outlet pipe;

the mud storage tank body is formed by integrating a cylindrical water storage tank at the upper part and an inverted conical mud sedimentation tank at the lower part;

a turbulence barrel is vertically arranged at the center position in the water storage tank, the upper end of the turbulence barrel is fixed with the top cover of the water storage tank, the lower end of the turbulence barrel is a water outlet, an umbrella-shaped guide plate for bearing water is correspondingly arranged under the water outlet, the bottom end position of the guide plate is not lower than the top of the mud sedimentation tank, and the contour of the bottom end of the guide plate is horizontally positioned between the water outlet and the upper port of the mud sedimentation tank; the bottom of the guide plate is fixedly supported by a cross bracket, and the periphery of the cross bracket is fixed with the side wall of the water storage tank;

the mud inlet pipe is horizontally arranged in the middle of the water storage pool, the inner end of the mud inlet pipe penetrates through the water storage pool and is inserted into the turbulent flow cylinder, the inner end of the mud inlet pipe is connected with the diffusion elbow, the diffusion elbow is connected with the bell-mouth-shaped diffusion opening, and the diffusion opening is upward;

the mud sedimentation tank is provided with a mud outlet pipe, one end of the mud outlet pipe is inserted into the bottom of the mud sedimentation tank, and the other end of the mud outlet pipe is introduced to the outside of the mud sedimentation tank;

the inner side wall of the upper part of the water storage tank is provided with an annular overflow water outlet groove, the bottom in the overflow water outlet groove is provided with a section of sunken groove, and a water outlet pipe is arranged in the groove and leads to the outside of the water storage tank;

the liquid level of the water storage tank is higher than the overflow weir plate of the overflow water outlet groove.

The turbulent flow section of thick bamboo is cylindrical barrel, the barrel lateral wall of turbulent flow section of thick bamboo sets up a plurality of mud square holes of arranging and is located pond liquid level top.

The tip of the guide plate is positioned on the central axis of the turbulence cylinder; the lower part of the water outlet is a bell mouth.

The sludge inlet pipe is externally connected with a sludge pump room; a dewatering machine room is connected outside the mud outlet pipe; and the water outlet of the water outlet pipe is communicated with a factory sewage pipe network.

The overflow weir plate of the overflow effluent trough is provided with a triangular weir, and the triangular weir is provided with a plurality of downward triangular openings at the top of the overflow weir plate.

The utility model has the advantages as follows:

the utility model changes the traditional mud storage tank water inlet and distribution mode, the water distribution is more uniform, the damage of the water inlet flow to the sludge flocs in the tank caused by the original water inlet mode is avoided, the turbulent flow cylinder is adopted to carry out turbulent flow on the mud, the system operation is more stable, the mud discharging quality is more uniform, the mud-water separation and the sludge concentration of the residual sludge are facilitated by arranging the guide plate and the mud settling tank, and the defects of poor matching of electromechanical equipment and unstable continuous operation caused by the over-small mud amount in the mud storage tank are avoided; simultaneously the utility model discloses compact structure has practiced thrift the construction land used, has practiced thrift the engineering construction fund, has reduced the work load of operation maintenance, has apparent economic benefits and social.

Description of the drawings:

fig. 1 is a schematic view of the overall structure section of the present invention.

Fig. 2 is a schematic plan view of the present invention.

Fig. 3 is a schematic view of the installation position of the deflector of the present invention.

Fig. 4 is a schematic plane development view of the turbulence barrel of the present invention.

Fig. 5 is a schematic view of the triangular weir of the present invention.

Fig. 6 is a schematic plane development view of the present invention.

Reference numerals:

1-a mud storage pool body, 2-a mud inlet pipe, 3-a mud inlet diffusion elbow, 4-a turbulence barrel, 41-a mud discharge square hole, 5-an overflow water outlet groove, 51-a triangular weir, 6-a guide plate, 61-a cross bracket, 7-a mud outlet pipe and 8-a water outlet pipe

The specific implementation mode is as follows:

the following describes the embodiments of the present invention with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, a sludge storage tank with a concentration function comprises a sludge storage tank body 1, a sludge inlet pipe 2, a sludge inlet diffusion elbow 3, a turbulence barrel 4, an overflow water outlet groove 5, a guide plate 6, a cross bracket 61, a sludge outlet pipe 7 and a water outlet pipe 8;

the mud storage tank body 1 is formed by integrating a cylindrical water storage tank at the upper part and an inverted conical mud sedimentation tank at the lower part;

a turbulence barrel 4 is vertically arranged at the central position in the water storage pool, the upper end of the turbulence barrel 4 is fixed with the top cover of the water storage pool, the lower end of the turbulence barrel is a water outlet, an umbrella-shaped guide plate 6 for bearing water is correspondingly arranged under the water outlet, the bottom end position of the guide plate 6 is not lower than the top of the mud sedimentation pool, and the contour of the bottom end of the guide plate 6 is horizontally positioned between the water outlet and the upper port of the mud sedimentation pool; the bottom of the guide plate 6 is fixedly supported by a cross bracket 61, and the periphery of the cross bracket 61 is fixed with the side wall of the water storage tank, as shown in the attached figures 1, 2 and 3;

the middle part of the water storage pool is horizontally provided with the mud inlet pipe 2, the inner end of the mud inlet pipe 2 penetrates through the water storage pool and is inserted into the turbulent flow cylinder 4, the inner end of the mud inlet pipe 2 is connected with the diffusion elbow 3, the diffusion elbow 3 is connected with the bell-mouth-shaped diffusion opening, and the diffusion opening faces upwards, which is shown in the attached drawing 1;

the mud sedimentation tank is provided with a mud outlet pipe 7, one end of the mud outlet pipe 7 is inserted into the bottom of the mud sedimentation tank, and the other end is introduced to the outside of the mud sedimentation tank, which is shown in the attached figures 1 and 2;

the inner side wall of the upper part of the water storage tank is provided with an annular overflow water outlet groove 5, the bottom of the overflow water outlet groove 5 is provided with a section of sunken groove, and a water outlet pipe 8 is arranged in the groove and leads to the outside of the water storage tank, as shown in attached figures 1 and 2;

the liquid level of the water storage tank is higher than the overflow weir plate of the overflow water outlet groove 5.

The turbulence barrel 4 is a cylindrical barrel, and the side wall of the turbulence barrel 4 is provided with a plurality of mud discharge square holes 41 and is positioned above the liquid level in the tank, see fig. 1, 2 and 4.

The tip of the deflector 6 is positioned on the central axis of the turbulence cylinder 4; the lower part of the water outlet is a bell mouth, which is shown in the attached figures 1 and 2.

The sludge inlet pipe 2 is externally connected with a sludge pump room; the mud outlet pipe 7 is externally connected into a dehydration machine room; and the water outlet of the water outlet pipe 8 is communicated with a factory sewage pipe network.

The overflow weir plate of the overflow effluent trough 5 is provided with a triangular weir 51, and the triangular weir 51 is formed by arranging a plurality of downward triangular openings at the top of the overflow weir plate, as shown in fig. 1, 2, 5 and 6.

The cell body design is conical, ensures the stirring, avoids appearing the dead angle. Sludge which is uniformly mixed and concentrated is arranged in the bottom cone hopper and can be directly pumped into a dehydrator for dehydration, thereby being beneficial to sludge-water separation and sludge concentration of excess sludge.

The upper part of the turbulence barrel 4 is provided with a double-layer mud discharging square hole 41 which is positioned above the liquid level in the pool, so that the floating mud in the turbulence barrel 4 can overflow conveniently, and the system is discharged through the overflow water outlet groove 5.

After the sludge falls to the guide plate 6 from the turbulent flow cylinder 4, the sludge is further diffused, the flow velocity is further reduced, and the sludge sinks to the bottom of the conical sludge settling tank under the action of gravity at the edge of the guide plate 6.

The working principle is as follows:

the sludge enters the turbulence barrel 4 through the sludge inlet pipe 2 and the diffusion elbow 3, and the floating sludge in the turbulence barrel 4 overflows through the sludge discharge square hole 41 and is discharged out of the system through the overflow water outlet groove 5. Mud falls to guide plate 6 back from turbulent flow section of thick bamboo 4 lower extreme, and further diffusion, the velocity of flow further reduces, and at the edge of guide plate 6, mud sinks to mud sedimentation tank bottom at the action of gravity and collects and derives through mud pipe 7 and store the mud outside of pond and dewater through the dehydration computer lab, and simultaneously, concentrated supernatant flows into overflow outlet trough 5 and in discharges into factory sewage pipe network through outlet pipe 8.

Claims

1. The utility model provides a store mud pond with concentrated function which characterized in that: comprises a mud storage pool body (1), a mud inlet pipe (2), a mud inlet diffusion elbow (3), a turbulence barrel (4), an overflow water outlet groove (5), a guide plate (6), a cross bracket (61), a mud outlet pipe (7) and a water outlet pipe (8);

the mud storage tank body (1) is formed by integrating a cylindrical water storage tank at the upper part and an inverted conical mud sedimentation tank at the lower part;

a turbulence barrel (4) is vertically arranged at the central position in the water storage pool, the upper end of the turbulence barrel (4) is fixed with the top cover of the water storage pool, the lower end of the turbulence barrel is a water outlet, an umbrella-shaped guide plate (6) for bearing water is correspondingly arranged under the water outlet, the bottom end position of the guide plate (6) is not lower than the top of the sludge settling pool, and the profile of the bottom end of the guide plate (6) is positioned between the water outlet and the upper port of the sludge settling pool in the horizontal direction; the bottom of the guide plate (6) is fixedly supported by a cross bracket (61), and the periphery of the cross bracket (61) is fixed with the side wall of the water storage tank;

the mud inlet pipe (2) is horizontally arranged in the middle of the water storage pool, the inner end of the mud inlet pipe (2) penetrates through the water storage pool and is inserted into the turbulent flow cylinder (4), the inner end of the mud inlet pipe (2) is connected with the diffusion elbow (3), the diffusion elbow (3) is connected with the bell-mouth-shaped diffusion opening, and the diffusion opening faces upwards;

the mud sedimentation tank is provided with a mud outlet pipe (7), one end of the mud outlet pipe (7) is inserted into the bottom of the mud sedimentation tank, and the other end of the mud outlet pipe is introduced to the outside of the mud sedimentation tank;

the inner side wall of the upper part of the water storage tank is provided with an annular overflow water outlet groove (5), the bottom in the overflow water outlet groove (5) is provided with a section of sunken groove, and a water outlet pipe (8) is arranged in the groove and leads to the outside of the water storage tank;

the liquid level of the water storage tank is higher than an overflow weir plate of the overflow water outlet groove (5).

2. A sludge storage pond with concentration function according to claim 1, wherein the turbulence barrel (4) is a cylindrical barrel, and the side wall of the turbulence barrel (4) is provided with a plurality of sludge discharge square holes (41) and is positioned above the liquid level in the pond.

3. A mud pit with concentration function according to claim 1, characterized in that the tip of the deflector (6) is located on the central axis of the turbulence cylinder (4); the lower part of the water outlet is a bell mouth.

4. The mud storage pond with the concentration function according to claim 1, wherein the mud inlet pipe (2) is externally connected with a mud pump room; the mud outlet pipe (7) is externally connected into a dehydration machine room; and the water outlet of the water outlet pipe (8) is communicated with a factory sewage pipe network.

5. A sludge storage pond with a thickening function according to claim 1, wherein the weir plate of the overflow effluent trough (5) is provided with a triangular weir (51), and the triangular weir (51) is provided with a plurality of downward triangular gaps at the top of the weir plate.