CN211611729U

CN211611729U - Vertical flow sedimentation tank

Info

Publication number: CN211611729U
Application number: CN201921330215.4U
Authority: CN
Inventors: 刘毅; 丁伟娜; 薛金星; 何富强
Original assignee: Henan Qingxin Construction Co ltd
Current assignee: Henan Qingxin Construction Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-10-02
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a vertical flow sedimentation tank, which comprises a tank body, the bottom of the jar body is equipped with toper mud collection fill, the internal central draft tube that is equipped with of jar, the inlet tube that is connected with of central draft tube, the below of central draft tube export is equipped with the anti-flow board, the bottom of mud collection fill is connected with the mud discharge pipe, follows the outer wall at jar body top is equipped with the water catch bowl, the water catch bowl is connected with the drain pipe, the outer wall at jar body top is equipped with constant current overflow weir. The utility model discloses be equipped with constant current overflow weir in the water catch bowl, make the interior effluent flow of sedimentation tank invariable, effectual elimination delivery port part overflows and influences the problem of sedimentation tank mud-water separation effect, has reached the stable control of effluent flow size, simple and practical, and mud-water separation is effectual.

Description

Vertical flow sedimentation tank

Technical Field

The utility model relates to a sewage treatment technical field, in particular to vertical flow type sedimentation tank.

Background

The vertical sedimentation tank is also called as a vertical sedimentation tank and is a sedimentation tank in which wastewater in the tank flows vertically. The plane figure of the pool body is round or square, water enters the pool from top to bottom through a water inlet pipe arranged in the center of the pool (the flow velocity in the pipe is less than 30mm/s), an umbrella-shaped baffle is arranged under the pipe to ensure that the wastewater slowly rises along the whole water passing section after being uniformly distributed in the pool (for domestic sewage, the flow velocity is generally 0.5-0.7mm/s, the settling time is 1-1.5h), suspended matters settle and enter a conical sludge settling hopper at the bottom of the pool, and clarified water flows out from the periphery of the pool along a peripheral overflow weir. A baffle plate and a scum groove are arranged in front of the weir to intercept scum and ensure the quality of effluent. One side of the pool is provided with a mud pipe (the diameter is more than 200mm) close to the pool wall, and mud is discharged periodically by hydrostatic pressure. The vertical sedimentation tank has the advantages of small occupied area, easy sludge discharge, large depth, difficult construction and high manufacturing cost. Is usually used for treating water with a volume of less than 20000m³Sewage treatment plant of/d.

In order to remove suspended particles from sewage, the conventional vertical flow sedimentation tank distributes water uniformly as much as possible without short flow or dead angle, but the water flow at the water inlet is large or small, so that the water flow of the water collecting tank overflow weir is unstable, local small turbulence is easily formed, the flow velocity of liquid is not uniform, and the sludge-water separation effect of the sedimentation tank is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a vertical flow type sedimentation tank solves current vertical flow type overflow weir because overflow weir rivers are unstable and influence the problem of sedimentation tank mud-water separation effect.

In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides a vertical flow sedimentation tank, includes a jar body, the bottom of jar body is equipped with toper mud collection fill, the internal central draft tube that is equipped with of jar, the inlet tube that is connected with of central draft tube, the below of central draft tube export is equipped with the refluence board, the bottom of mud collection fill is connected with the mud discharge pipe, follows the outer wall at jar body top is equipped with the water catch bowl, the water catch bowl is connected with the drain pipe, the outer wall at jar body top is equipped with constant current overflow weir.

Preferably, the constant-current overflow weir comprises a weir plate and a floating body connected below the weir plate, a plurality of inverted-triangular overflow ports are formed in the top of the weir plate, a guide groove for the floating body to move is formed in the outer wall of the top of the tank body, the floating body can move up and down in the guide groove, and a weir plate extending hole is formed in the top of the guide groove.

Preferably, the floating bodies are multiple, the top surfaces of the floating bodies are provided with multiple convex blocks, the bottom surfaces of the floating bodies are provided with multiple grooves, and the convex blocks are inserted into the grooves of the adjacent floating bodies to realize connection.

Wherein, preferably, still include the cover, the diapire of cover is equipped with annular baffle, the below of baffle is equipped with the filter screen, the filter screen is by baffle to jar internal wall downward sloping setting.

Wherein, preferably, the lower end of the baffle is lower than the top of the tank body.

Wherein, preferably, the tank cover is provided with a drain pipe.

Preferably, a plurality of baffle plates which are arranged in a staggered mode are arranged in the central guide cylinder, and the baffle plates are located below the outlet of the water inlet pipe.

The technical scheme provided by the utility model, compared with prior art, following beneficial effect has:

the utility model discloses be equipped with constant current overflow weir in the water catch bowl, make the interior effluent flow of sedimentation tank invariable, effectual elimination delivery port part overflows and influences the problem of sedimentation tank mud-water separation effect, has reached the stable control of effluent flow size, simple and practical, and mud-water separation is effectual.

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 some embodiments of the present invention, and for those skilled in the art, other embodiments can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a vertical sedimentation tank of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic diagram of a water outlet mode of the weir plate in the utility model.

In the figure: 1. the sludge sewage treatment system comprises a tank body, 2 sludge collecting hoppers, 3 central guide cylinders, 4 water inlet pipes, 5 reflux plates, 6 sludge discharge pipes, 7 water collecting tanks, 8 water discharge pipes, 9 weir plates, 10 floating bodies, 11 overflow ports, 12 guide grooves, 13 weir plate extending holes, 14 tank covers, 15 baffle plates, 16 filter screens, 17 baffle plates and 18 sewage discharge pipes

Detailed Description

The technical solution of the present invention will be described clearly and completely below with reference to specific embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, this embodiment provides a vertical sedimentation tank, which includes a tank 1, a tapered sludge collecting hopper 2 is disposed at the bottom of the tank 1, a central guide cylinder 3 is disposed in the tank 1, the central guide cylinder 3 is connected to a water inlet pipe 4, a reverse flow plate 5 is disposed below an outlet of the central guide cylinder 3, a sludge discharge pipe 6 is connected to the bottom of the sludge collecting hopper, a water collecting tank 7 is disposed along an outer wall of the top of the tank 1, the water collecting tank 7 is connected to a water discharge pipe 8, and a constant-current overflow weir is disposed on an outer wall of the top of the. The constant-current overflow weir comprises a weir plate 9 and a floating body 10 connected below the weir plate 9, the top of the weir plate 9 is provided with a plurality of inverted triangular overflow ports 11, the outer wall of the top of the tank body 1 is provided with a guide groove 12 for the floating body 10 to move, the floating body 10 can move up and down in the guide groove 12, the top of the guide groove 12 is provided with a weir plate extending hole 13, and a hole for water supply to enter and exit is arranged on the side wall of the guide groove 12 to ensure the communication of the guide groove 12 and the water in the water collecting tank 7. After the water flows over the weir plate 9 to enable the floating body 10 to completely submerge the water, the weir plate 9 is maintained at a certain height by the buoyancy of the floating body 10, a plurality of inverted-triangular overflow ports 11 are arranged at the top of the weir plate 9, so that the water flow is constant, the problem that the water outlet local overflow affects the mud-water separation effect of the sedimentation tank is effectively eliminated, the stable control of the size of the water flow is achieved, and the mud-water separation effect is good.

In order to realize different water flow, the utility model discloses well body 10 is the polylith, and the top surface of body 10 is equipped with a plurality of lugs, and the bottom surface of body 10 is equipped with a plurality of recesses (not shown in the figure), and the lug inserts the recess of adjacent body 10 in order to realize connecting. The number of the floating bodies 10 can be selected according to the requirement, and the purpose of controlling the flow is further achieved.

Wherein, the vertical flow sedimentation tank of the utility model also comprises a tank cover 14, the bottom wall of the tank cover 14 is provided with an annular baffle 15, the lower end of the baffle 15 is lower than the top of the tank body 1, and the baffle 15 plays a certain role in stabilizing the flow. In addition, because the partial suspended solid of part sewage can not precipitate, and can be taken to the top of sedimentation tank by rising rivers, for the granule that avoids the top gathering gets into water catch bowl 7, be equipped with filter screen 16 in the below of baffle 15, in order to make the better toward the top gathering of granule, filter screen 16 is by baffle 15 to jar body 1 inner wall downward sloping setting. When the particles (dirt) accumulated at the top reach a certain degree, the particles are pumped out from the drainage pipe 18 on the tank cover 14.

Wherein, a plurality of baffle plates 17 which are arranged in a staggered way are arranged in the central guide shell 3 and are positioned below the outlet of the water inlet pipe 4. Because sewage is big from the velocity of water flow when inlet tube 4 got into, the impact force is big, and the problem of rivers disorder can appear in the direct sedimentation tank that gets into, influences mud-water separation's effect, consequently intraductal crisscross baffle 15 that sets up is favorable to alleviating the impulsive force of water, makes rivers stable.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a vertical flow sedimentation tank, includes a jar body, the bottom of jar body is equipped with toper mud collection fill, the internal central draft tube that is equipped with of jar, the central draft tube be connected with the inlet tube, the below of central draft tube export is equipped with the refluence board, the bottom of mud collection fill is connected with mud discharge pipe, its characterized in that: a water collecting tank is arranged along the outer wall of the top of the tank body, the water collecting tank is connected with a water discharging pipe, and a constant-current overflow weir is arranged on the outer wall of the top of the tank body; the constant-current overflow weir comprises a weir plate and a floating body connected below the weir plate, a plurality of inverted-triangular overflow ports are formed in the top of the weir plate, a guide groove for the floating body to move is formed in the outer wall of the top of the tank body, the floating body can move up and down in the guide groove, and a weir plate extending hole is formed in the top of the guide groove.

2. A vertical flow settling tank as claimed in claim 1, wherein: the floating body is provided with a plurality of blocks, the top surface of the floating body is provided with a plurality of convex blocks, the bottom surface of the floating body is provided with a plurality of grooves, and the convex blocks are inserted into the grooves of the adjacent floating bodies to realize connection.

3. A vertical flow settling tank as claimed in claim 1, wherein: still include the cover, the diapire of cover is equipped with annular baffle, the below of baffle is equipped with the filter screen, the filter screen is by baffle to jar internal wall downward sloping setting.

4. A vertical sedimentation tank as claimed in claim 3, wherein: the lower end of the baffle is lower than the top of the tank body.

5. A vertical sedimentation tank as claimed in claim 3, wherein: and a drain pipe is arranged on the tank cover.

6. A vertical flow settling tank as claimed in claim 1, wherein: and a plurality of flow baffle plates which are arranged in a staggered mode are arranged in the central guide cylinder and are positioned below the outlet of the water inlet pipe.