CN114681960A

CN114681960A - Efficient sewage treatment plant

Info

Publication number: CN114681960A
Application number: CN202011640272.XA
Authority: CN
Inventors: 徐琪程; 徐畅; 陈园园; 蒋素英
Original assignee: JIANGSU ATK ENVIRONMENTAL ENGINEERING Ltd
Current assignee: JIANGSU ATK ENVIRONMENTAL ENGINEERING Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-07-01

Abstract

The invention discloses a high-efficiency sewage treatment device, which comprises a dosing coagulation unit pool, a sedimentation pool, a water inlet pipe, a water outlet pipe, a return pipe and a foam discharge pipe, wherein the water inlet pipe is connected with the dosing coagulation unit pool, the tail end of the dosing coagulation unit pool is connected with the sedimentation pool, the longitudinal section of the sedimentation pool is of a hexagonal structure with an open upper part, the upper part of the inner side of the sedimentation pool is provided with a buffer pool, two sides of the lower end of the buffer pool are obliquely provided with a buffer supporting plate in a splayed shape, the buffer supporting plate is combined with the bottom of the buffer pool to form a water receiving cavity, the foam discharge pipe and the water outlet pipe are arranged at an interval from top to bottom and the tail end extends into the water receiving cavity, the inner side end of the foam discharge pipe is provided with a concentration groove, the inner side end of the water outlet pipe is provided with a water discharge communicating pipe, the bottom of the sedimentation pool is provided with a discharge auger, and the bottom of the discharge auger is provided with sewage discharge holes, the high-efficiency sedimentation pool structure is assisted to improve the sedimentation effect by adding and mixing, can clear up water body foam while draining water, can discharge mud fast.

Description

Efficient sewage treatment plant

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a high-efficiency sewage treatment device.

Background

In the sewage treatment field, the sedimentation tank is a structure for removing suspended solids in water by applying precipitation, water purification equipment, the sedimentation tank is widely used in sewage treatment, the existing sedimentation tank is generally added with drugs and coagulated sewage and enters the sedimentation tank, standing is performed for a period of time, so that internal flocculates, particles and the like settle to the bottom of the sedimentation tank, sludge is discharged from the lower layer through a drain pipe, the existing physical settlement often needs to be kept standing for a long time, even if the existing sedimentation tank still has a lot of impurities still doped in the water, the existing sedimentation tank cannot settle quickly, the main reason is that the existing sedimentation tank is single in structure, continuous sewage can impact the original liquid of the sedimentation tank after entering the sedimentation tank, the reciprocating manner is adopted, and the sedimentation effect is poor.

In addition, the existing sewage treatment device still has the following defects: 1, the sludge discharge speed is low, the sludge is mostly discharged in a negative pressure type sludge discharge direction, and a device for actively discharging the sludge is lacked; 2, the surface of the water body of the sedimentation tank is often accumulated with more foams, which can not be separated and cleaned, and the sewage treatment effect is affected.

Disclosure of Invention

Technical problem to be solved

In order to overcome prior art not enough, provide an efficient sewage treatment plant now, mix through adding the medicine, supplementary high-efficient sedimentation tank structure improves and subsides the effect, can clear up the water foam in the drainage, can discharge mud fast.

(II) technical scheme

The invention is realized by the following technical scheme: the invention provides an efficient sewage treatment device, which comprises a dosing coagulation unit pool, a sedimentation pool, a water inlet pipe, a water outlet pipe, a return pipe and a foam discharge pipe, wherein the dosing coagulation unit pool comprises a stirring pool, a first coagulation pool and a second coagulation pool which are sequentially connected, a baffle plate is arranged in each pool, a stirring shaft is also arranged in each stirring pool, the water inlet pipe is connected with the dosing coagulation unit pool, the tail end of the dosing coagulation unit pool is connected with the sedimentation pool, the longitudinal section of the sedimentation pool is of a hexagonal structure with an open upper part, a buffer pool is arranged at the upper part of the inner side of the sedimentation pool, two sides of the lower end of the buffer pool are obliquely provided with a buffer supporting plate in a splayed shape, the buffer supporting plate is combined with the bottom of the buffer pool to form a water receiving cavity, the foam discharge pipe and the water outlet pipe are arranged at intervals from top to bottom, the tail end of the foam discharge pipe extends into the water receiving cavity, a concentration groove is arranged at the inner side end of the foam discharge pipe, the concentrated groove is arc form and its opening down, the medial extremity of outlet pipe is provided with a drainage communicating pipe, drainage communicating pipe is connected in the outlet pipe perpendicularly and rather than the intercommunication, and the upper portion of drainage communicating pipe is provided with one along its length direction and goes into the basin, the bottom of sedimentation tank is provided with a blowdown auger and is provided with the blowhole in the bottom of blowdown auger, the blowhole bottom is connected with the blow off pipe, the back flow is connected in the blow off pipe middle part and its other end is connected to and adds medicine coagulation unit pond.

Furthermore, the blowoff hole is including two and distribute in both ends around the blowdown auger, the auger blade on the blowdown auger is opposite to both ends direction of rotation by the centre.

Furthermore, the drainage communicating pipe and the end of the concentration tank extend to be connected to two side walls of the sedimentation tank respectively.

Furthermore, at least one shunt buffer plate parallel to the buffer supporting plate is arranged between the buffer supporting plate and the wall of the sedimentation tank.

Furthermore, a valve is arranged at the tail end of the sewage discharge pipe.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

the invention provides an efficient sewage treatment device, which is characterized in that after dosing coagulation, rapid sedimentation is carried out through a sedimentation tank, and a better sewage treatment effect can be achieved, the sedimentation tank adopts a hexagonal structure and is combined with a buffer tank and a buffer supporting plate, on one hand, the sewage is prevented from directly impacting water in the sedimentation tank when entering the sedimentation tank, on the other hand, an inclined baffling structure can improve the sedimentation effect of the bottom of large particles, when the large particles contact the tank wall and the bottom of the buffer supporting plate, large particle impurities and the like can be more rapidly settled through large friction, the sedimentation effect is improved, a foam discharge pipe is arranged, the discharge of clear water at the upper part is realized through a water inlet groove on a discharge communicating pipe, meanwhile, the foam at the upper part of a water body is collected through a concentration groove and is discharged in a concentrated manner, and a sewage discharge auger is arranged, so that the sludge discharge efficiency is greatly improved.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

1-adding a dosing coagulation unit pool; 2-a sedimentation tank; 3-water inlet pipe; 4-water outlet pipe; 5-a return pipe; 6-a buffer pool; 7-a buffer supporting plate; 8-foam discharge pipe; 9-a concentration tank; 10-a drain communicating pipe; 11-a sewage discharge auger; 12-a sewage draining hole; 13-a sewage draining pipe; 14-a shunt buffer plate; 15-a valve; 101-entering a water tank; 102-a stirring tank; 103-a first coagulation tank; 104-a second coagulation tank; 105-a baffle plate; 106-stirring shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, an efficient sewage treatment device comprises a dosing coagulation unit tank 1, a sedimentation tank 2, a water inlet pipe 3, a water outlet pipe 4, a return pipe 5 and a foam discharge pipe 8, wherein the dosing coagulation unit tank 1 comprises a stirring tank 102, a first coagulation tank 103 and a second coagulation tank 104 which are connected in sequence, each tank is internally provided with a baffle plate 105, the stirring tank 102 is internally provided with a stirring shaft 106, the water inlet pipe 3 is connected with the dosing coagulation unit tank 1, the tail end of the dosing coagulation unit tank 1 is connected with the sedimentation tank 2, the longitudinal section of the sedimentation tank 2 is of a hexagonal structure with an open upper part, the upper part of the inner side of the sedimentation tank 2 is provided with a buffer tank 6, two sides of the lower end of the buffer tank 6 are provided with a buffer supporting plate 7 in a splayed inclined manner, the buffer supporting plate 7 is combined with the bottom of the buffer tank 6 to form a water receiving cavity, the foam discharge pipe 8 and the water outlet pipe 4 are arranged at intervals from top to bottom and the tail end of the buffer tank extends into the water receiving cavity, 8 medial extremes of foam discharging pipe are provided with a concentrated groove 9, concentrated groove 9 is arc form and its opening down, the medial extremity of outlet pipe 4 is provided with a drainage communicating pipe 10, drainage communicating pipe 10 is connected perpendicularly in outlet pipe 4 and rather than the intercommunication, and the upper portion of drainage communicating pipe 10 is provided with one along its length direction and goes into basin 101, the bottom of sedimentation tank 2 is provided with a blowdown auger 11 and is provided with blowoff hole 12 in the bottom of blowdown auger 11, blowoff hole 12 bottom is connected with blow off pipe 13, back flow 5 is connected in blow off pipe 13 middle part and its other end is connected to and is coagulated the unit pond 1 with medicine.

The sewage discharge hole 12 comprises two parts which are distributed at the front end and the rear end of the sewage discharge auger 11, and auger blades on the sewage discharge auger 11 rotate in opposite directions from the middle part to the two ends; the two ends of the drainage communicating pipe 10 and the two ends of the concentration tank 9 are respectively extended and connected to the two side walls of the sedimentation tank 1; at least one shunt buffer plate 14 which is arranged in parallel with the buffer supporting plate 3 is arranged between the buffer supporting plate 7 and the wall of the sedimentation tank 2; the tail end of the sewage draining pipe 13 is provided with a valve 15.

The invention provides an efficient sewage treatment device, which is used specifically, after sewage enters a stirring tank 102 through a water inlet pipe 3, the sewage is added with chemicals in the stirring tank 102, is stirred through a stirring shaft 106, then enters a first coagulation tank 103 and a second coagulation tank 104, finally enters a buffer tank 6 in a sedimentation tank 2 through a water outlet branch pipe at the tail end of the second coagulation tank 104, overflows from two sides after the buffer tank 6 is full, the sewage slides downwards along a buffer supporting plate 7, during the period, large granular impurities, flocculates and the like (hereinafter referred to as large granular substances) in the sewage contact with the buffer supporting plate 7, the large granular substances can adhere to the buffer supporting plate 7 and slide downwards along an inclined shape due to large friction force, and particularly, the sewage can be shunted by arranging a plurality of shunt buffer plates 14, so that the contact between the sewage containing the large granular substances and the inclined plate surface is improved, the sedimentation effect is improved, the sludge is formed by continuously carrying out large friction sedimentation on the wall of the sedimentation tank 2 at the lower part and slowly sedimentating to the bottom of the sedimentation tank 2, as large granular substances are more accumulated at the bottom of the sedimentation tank 2, and when the sewage discharge auger 11 driven by the motor rotates, the sludge at the bottom of the sedimentation tank 2 can be quickly extruded and discharged towards the positions of the sewage discharge holes 13 at the two sides, so that the sludge discharge speed is improved, after the sludge is discharged through the sewage discharge pipe 13, on one hand, the sludge can be discharged by opening the valve 15, in addition, the reflux pipe 5 can be used for feeding the medicine to the coagulation unit tank 1, the sludge compression ratio is improved, after the whole sedimentation tank 2 rises along with the water level, as the water inlet groove 101 on the drainage communicating pipe 10 is smaller, only a small amount of foam can be discharged from the water outlet pipe 4, and after the water level continues to rise, a large amount of foam accumulated water level can be discharged through the foam drain pipe 8 under the action of the concentration groove 9, the foam can be separated from the clear water, and the sewage treatment efficiency and the sewage treatment effect are improved.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.

Claims

1. The utility model provides an efficient sewage treatment plant which characterized in that: comprises a dosing coagulation unit pool (1), a sedimentation pool (2), a water inlet pipe (3), a water outlet pipe (4), a backflow pipe (5) and a foam discharge pipe (8), wherein the dosing coagulation unit pool (1) comprises a stirring pool (102), a first coagulation pool (103) and a second coagulation pool (104) which are sequentially connected, a baffle plate (105) is arranged in each pool, a stirring shaft (106) is also arranged in the stirring pool (102), the water inlet pipe (3) is connected with the dosing coagulation unit pool (1), the tail end of the dosing coagulation unit pool (1) is connected with the sedimentation pool (2), the longitudinal section of the sedimentation pool (2) is of a hexagonal structure with an open upper part, a buffer pool (6) is arranged on the upper part of the inner side of the sedimentation pool (2), a buffer supporting plate (7) is arranged on two sides of the lower end of the buffer pool (6) in a splayed inclined manner, the buffer supporting plate (7) is combined with the bottom of the buffer pool (6) to form a water receiving cavity, the foam discharge pipe (8) and the water outlet pipe (4) are arranged at an interval from top to bottom, the tail end of the foam discharge pipe extends into the water receiving cavity, the inner side end of the foam discharge pipe (8) is provided with a concentration groove (9), the concentration groove (9) is arc-shaped, the opening of the concentration groove faces downwards, the inner side end of the water outlet pipe (4) is provided with a water discharge communicating pipe (10), the drainage communicating pipe (10) is vertically connected with the water outlet pipe (4) and communicated with the water outlet pipe, the upper part of the drainage communicating pipe (10) is provided with a water inlet groove (101) along the length direction, a sewage discharge packing auger (11) is arranged at the bottom of the sedimentation tank (2), a sewage discharge hole (12) is arranged at the bottom of the sewage discharge packing auger (11), the bottom of the sewage discharge hole (12) is connected with a sewage discharge pipe (13), the return pipe (5) is connected to the middle of the sewage discharge pipe (13) and the other end of the return pipe is connected to the dosing coagulation unit pool (1).

2. An efficient wastewater treatment unit according to claim 1, characterized in that: the blowdown hole (12) are including two and distribute in blowdown auger (11) both ends around, the auger blade on blowdown auger (11) is opposite by the middle to both ends direction of rotation.

3. An efficient wastewater treatment unit according to claim 1, characterized in that: and the two ends of the drainage communicating pipe (10) and the two ends of the concentration tank (9) are respectively extended and connected to the two side walls of the sedimentation tank (1).

4. An efficient wastewater treatment unit according to claim 1, characterized in that: at least one shunt buffer plate (14) which is arranged in parallel with the buffer supporting plate (3) is arranged between the buffer supporting plate (7) and the wall of the sedimentation tank (2).

5. An efficient wastewater treatment unit according to claim 1, characterized in that: and a valve (15) is arranged at the tail end of the sewage draining pipe (13).