CN210340364U

CN210340364U - Waste water mixing and homogenizing adjusting tank and sewage treatment system

Info

Publication number: CN210340364U
Application number: CN201920786106.7U
Authority: CN
Inventors: 丁江涛; 姜玉寿; 蔡高文
Original assignee: Suzhou Xingong Environment Engineering Technology Co ltd
Current assignee: Suzhou Xingong Environment Engineering Technology Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-04-17
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a waste water mixing homogeneity equalizing basin and sewage treatment system, wherein waste water mixing homogeneity equalizing basin includes the cell body, be provided with at least a set of jet mixer that is the annular and distributes, an annular in the cell body the jet mixer is according to first adjacent distribution, the outlet end of the outside circulating pump of cell body is connected through water supply pipe to the jet mixer, the inlet end of circulating pump passes through the inlet channel and connects go out liquid hole on the cell body. This scheme design is exquisite, simple structure installs the circulating pump outside the storage tank, and the pipe connection storage tank is beaten to jar internal jet mixer through the circulating pump to can utilize a plurality of jet mixers to realize local and holistic mixture, both guaranteed the sufficiency and the homogeneity of mixing, simultaneously, avoid traditional top formula and side direction formula stirring, the inherent drawback of gas stirring, the structure is reliable, need not maintain, do not have the leakage.

Description

Waste water mixing and homogenizing adjusting tank and sewage treatment system

Technical Field

The utility model belongs to the technical field of sewage treatment device and specifically relates to waste water mixing homogeneity equalizing basin and sewage treatment system.

Background

The waste water is often not only a single waste water, and enters a mixing and adjusting tank before or after pretreatment of a waste water treatment system to be mixed and homogenized to enter the next treatment process. The mixing and adjusting effect directly influences the treatment effect of the next procedure.

In the prior art, mechanical stirring and aeration stirring are generally adopted, wherein,

the mechanical stirring is composed of a motor, a speed reducer, a stirring shaft and blades, and is divided into a top-mounted stirrer, a side-mounted stirrer and a submersible stirrer, and stirring and mixing are realized through rotation of the stirring shaft and the blades.

Aeration stirring, wherein compressed air enters the tank bottom perforation or the micropore aeration pipe and is stirred by the compressed air.

They all have the effect of effectively stirring and mixing, but they also have certain disadvantages, as for mechanical stirring, as follows:

(1) the mechanical stirring equipment is heavy, a bracket needs to be installed, and the cost is high;

(2) the vertical mixer motor and the speed reducer can increase the height of the storage tank, and influence the maintenance space for the indoor places; the side-mounted stirrer has higher sealing requirement on the tank body; the submersible mixer is immersed in water for a long time, and has high requirements on materials and motor sealing;

(3) the requirement on the structure of the storage tank is that the operation cost is high because the spoiler is required to be arranged for preventing water flow from rotating along with stirring;

(4) the vibration is large; if the stirring paddle is eccentric, the stirring machine shakes seriously.

For the aeration stirring, the disadvantages are as follows:

(1) the gas stirring can bring out volatile gas or smell in the waste water, and influences the surrounding environment.

(2) Clogging of perforated or microporous aeration tubes can occur.

Finally, after long-time operation or different waste water mixing reactions, sediments exist, and no matter mechanical stirring or aeration stirring is carried out, the generated sludge cannot be discharged in time, so that the use efficiency of the regulating tank is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a waste water mixing homogenizing adjusting tank and a sewage treatment system.

The purpose of the utility model is realized through the following technical scheme:

waste water mixing homogeneity equalizing basin, including the cell body, be provided with at least a set of efflux blender that is the annular and distributes in the cell body, an annular efflux blender is according to the adjacent distribution of head, the efflux blender passes through the liquid outlet end of the outside circulating pump of water supply pipe connection cell body, the feed liquor end of circulating pump passes through the feed liquor pipeline and connects play liquid hole on the cell body.

Preferably, in the wastewater mixing and homogenizing adjusting tank, the jet flow mixers are distributed in a circular shape, an included angle of 15-30 degrees is kept between an extension line of each jet flow mixer and a tangent line at an intersection point of a circle formed by the extension line and the jet flow mixer, and a jet flow outlet of each jet flow mixer deviates to a circle center O.

Preferably, in the wastewater mixing and homogenizing adjusting tank, the jet outlet of at least one of the jet mixers is inclined downwards by 15-20 degrees along the horizontal direction.

Preferably, in the wastewater mixing and homogenizing adjusting tank, the jet outlet of at least one of the jet mixers is inclined upwards by 25-35 degrees along the horizontal direction.

Preferably, in the wastewater mixing and homogenizing adjusting tank, a filter screen is arranged at the liquid inlet end of the liquid inlet pipeline and/or a Y-shaped filter 6 is arranged at the front end of the liquid inlet end of the circulating pump 4.

Preferably, in the waste water mixing homogeneity equalizing basin, be provided with the sludge discharge pipe in the cell body, the one end of sludge discharge pipe extends to near the bottom of cell body, its other end extends to outside the cell body and connect the sludge discharge pump, the sludge discharge pump is connected out the mud pipe.

Preferably, in the wastewater mixing and homogenizing adjusting tank, a horn mouth is arranged at the inlet end of the sludge discharge pipe.

Preferably, in the wastewater mixing and homogenizing adjusting tank, a sludge section instrument is arranged on the tank body.

The sewage treatment system comprises any one of the wastewater mixing and homogenizing adjusting tanks.

The utility model discloses technical scheme's advantage mainly embodies:

this scheme design is exquisite, simple structure installs the circulating pump outside the storage tank, and the pipe connection storage tank is beaten to jar internal jet mixer through the circulating pump to can utilize a plurality of jet mixers to realize local and holistic mixture, both guaranteed the sufficiency and the homogeneity of mixing, simultaneously, avoid traditional top formula and side direction formula stirring, the inherent drawback of gas stirring, the structure is reliable, need not maintain, do not have the leakage.

Compared with the traditional adjusting tank, the structure of the scheme is simplified, the implementation is easy, no requirement is imposed on the structure of the storage tank, and spoilers and the like do not need to be installed.

By adjusting the installation angle of the jet flow mixer, the problems of dead angles of stirring and the like can be avoided, and the sufficiency and uniformity of mixing can be fully ensured; meanwhile, the sedimentation of the sludge can be effectively reduced.

Increase row's mud pipeline and mud cross section appearance, can regularly carry out the emission of mud, reduce the interior precipitate of storage tank, adopt the form of the horn mouth that absorbs water, can improve the efficiency of discharge mud.

Drawings

Fig. 1 is a side view of a first embodiment of the present invention;

FIG. 2 is a distribution diagram of the jet mixer of the present invention;

fig. 3 is a side view of a second embodiment of the present invention;

fig. 4 is a top view of a second embodiment of the present invention (with the pump and portions of the tubing hidden).

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are merely exemplary embodiments for applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

It is right below to combine the attached drawing the utility model discloses a waste water mixing homogeneity equalizing basin, as shown in figure 1, including cell body 1, cell body 1 can be the solid that has accommodating space of various shapes that various feasible materials of knowing made formed, for example can be the reinforced concrete pond of cuboid, stainless steel jar etc. it has inlet, leakage fluid dram etc. preferably a jar body, and here is prior art, does not describe in detail.

As shown in attached

drawings

1 and 2, at least one group of jet flow mixers 2 distributed annularly are arranged in the tank body 1, one annular jet flow mixer 2 is distributed adjacently according to the head, the jet flow mixer 2 is connected with the liquid outlet end of a circulating pump 4 outside the tank body 1 through a water supply pipeline 3, and the liquid inlet end of the circulating pump 4 is connected with the liquid outlet hole on the tank body 1 through a liquid inlet pipeline 5.

During operation, after sewage enters the cell body 1 and submerges out the liquid hole, circulating pump 4 starts, carry sewage in each efflux blender 2 through inlet liquid pipeline and water supply pipe 3, sewage passes through efflux blender 2, efflux blender spun liquid stream forms local low pressure around it with its high-speed motion, adsorb and drive a liquid stream from the jar, make it accelerate, get into the mixing section jointly, the material still forms local low pressure at the jet mixer exit once more after by intensive mixing, the volume inhales a large amount of jar interior materials, thereby reach a macroscopic mixture, a plurality of jet mixers reasonable combination, can make material macroscopically reach homogeneous mixing in the large capacity jar.

However, in the scheme, the setting angle of the jet mixer 2 has a great influence on the mixing effect, and through a great deal of research and debugging, the inventors find that when the jet mixer 2 is set in the following manner, the best mixing effect can be obtained, specifically as follows:

the jet flow mixer 2 is positioned at the middle lower part of the tank body 1, the jet flow mixers 2 are distributed in a circular shape, the adjacent jet flow mixers 2 are arranged at equal intervals, and the radius of a circle A formed by enclosing the jet flow mixers is about half of the radius of the tank body 1.

Meanwhile, as shown in fig. 2, the extension line 21 of each jet mixer 2 and the tangent line B at the intersection point C of the extension line and the circle a formed by the jet mixer 2 keep an included angle of 15-30 degrees, and the jet outlet 22 of each jet mixer 2 is deviated to the center O of the circle, so that the liquid ejected by each jet mixer 2 can form a rotational flow approximately according to the shape of the circle enclosed by the extension line and the tangent line, so that the liquid in the tank body 1 has the power similar to the rotation generated by the stirring machine, and the overall mixing effect can be further improved.

In addition, in order to ensure sufficient mixing of the head space, as shown in the jet mixers on the left and right in fig. 1, the jet outlet of at least one of the jet mixers 2 is inclined upward by 25 to 35 °, preferably in plural, in the horizontal direction, so that the jet can be better mixed with the head liquid.

Further, certain silt, large particles and the like are often present in the wastewater, and are likely to be deposited at the bottom of the tank body 1 in the conventional stirring process to influence the performance of the adjusting tank, so that in order to reduce the sedimentation as much as possible, as shown in the jet mixer in the middle position of the attached drawing 1, the jet outlet of at least one of the jet mixers 2 is inclined downwards by 15-20 degrees along the horizontal direction, so that the high-speed mixed liquid generated by the jet mixer 2 can generate disturbance on the liquid in the bottom area, and the sediment enters the jet mixing area along with the liquid to avoid the sedimentation.

In addition, in order to avoid big particulate matter, silt etc. in the waste water to enter into the loss that causes the pump in the circulating pump, as shown in figure 1 the inlet port of inlet pipe 5 is provided with the filter screen and/or the front end of the inlet port of circulating pump 4 is provided with Y type filter 6, and preferably both have to can effectually carry out the check to silt etc. in the waste liquid and keep off, avoid during they enter into pipeline and pump, be favorable to prolonging the life of equipment.

Although the downward jet flow mixer 2 is arranged, the bottom sludge of the equipment still occurs after the equipment is used for a period of time, in view of this, as shown in fig. 3 and fig. 4, a sludge discharge pipe 7 is arranged in the tank body 1, one end of the sludge discharge pipe 7 extends to the vicinity of the bottom of the tank body 1, the other end of the sludge discharge pipe extends to the outside of the tank body 1 and is connected with a sludge discharge pump 8, the sludge discharge pump 8 is connected with a sludge discharge pipe 9, in addition, the inlet end of the sludge discharge pipe 7 is provided with a bell mouth 10, and the increase of the bell mouth 10 can effectively improve the sludge discharge efficiency and avoid the blockage at the inlet.

Meanwhile, in order to facilitate the intuitive understanding of the amount of sludge deposited so as to accurately control the sludge discharge time, as shown in fig. 3, a sludge cross-section instrument 20 is arranged on the tank body 1, the sludge cross-section instrument 20 can be connected to a control device (such as a PLC, etc.), and the control device is connected with a sludge discharge pump, a circulating pump, a water inlet pipeline, etc., so that when the sludge cross-section instrument detects that the sludge reaches a set height, the control device controls the circulating pump, the water inlet pipeline, etc. to stop the mixing of water inlet and jet flow, and starts the sludge discharge pump to discharge the sludge.

This scheme further discloses a sewage treatment system, includes foretell waste water mixing homogeneity equalizing basin, still includes subsequent sewage treatment device, and specific sewage type according to the difference sets up, for example can include coagulating sedimentation tank, sand filtration jar, biological oxidation reduction pond etc. for known technique, does not describe repeatedly.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims

1. A waste water mixing and homogeneous regulating tank, comprising a tank body (1), characterized in that: the tank body (1) is provided with at least one group of annularly distributed jet mixers (2), and an annular said jet The mixers (2) are distributed adjacent to the first position, and the jet mixer (2) is connected to the liquid outlet end of the circulation pump (4) outside the tank body (1) through the water supply pipe (3). The circulation pump (4) The liquid inlet end of the tank is connected to the liquid outlet hole on the tank body (1) through the liquid inlet pipe (5).

2. The wastewater mixing and homogeneous regulating tank according to claim 1, characterized in that: the jet mixers (2) are distributed in a circular shape, and the extension line (21) of each jet mixer (2) and its The tangent (B) at the intersection (C) of the circle (A) formed by the jet mixer (2) maintains an included angle of 15-30°, and the jet outlet (22) of each jet mixer (2) is deflected Center (O).

3 . The wastewater mixing and homogenizing conditioning tank according to claim 1 , wherein the jet outlet of at least one of the jet mixers ( 2 ) is inclined downward by 15-20° along the horizontal direction. 4 .

4 . The wastewater mixing and homogenizing conditioning tank according to claim 1 , wherein the jet outlet of at least one of the jet mixers ( 2 ) is inclined upward by 25-35° along the horizontal direction. 5 .

5. The wastewater mixing and homogenizing regulating tank according to claim 1, characterized in that: the liquid inlet end of the liquid inlet pipe (5) is provided with a filter screen and/or the liquid inlet end of the circulating pump (4). The front end is provided with a Y-type filter 6 .

6. The waste water mixing and homogeneous conditioning tank according to any one of claims 1-5, characterized in that: the tank body (1) is provided with a mud discharge pipe (7), and the mud discharge pipe (7) has a One end extends near the bottom of the pool body (1), and the other end extends outside the pool body (1) and is connected to a sludge discharge pump (8), which is connected to a mud outlet pipe (9). ).

7 . The wastewater mixing and homogenizing conditioning tank according to claim 6 , wherein the inlet end of the sludge discharge pipe ( 7 ) is provided with a bell mouth ( 10 ). 8 .

8 . The wastewater mixing and homogenizing conditioning tank according to claim 6 , wherein a sludge cross section meter is arranged on the tank body. 9 .

9. A sewage treatment system, characterized in that it comprises the waste water mixing and homogenizing adjustment tank according to any one of claims 1-8.