CN215876937U - Mixing device and filtering system with same - Google Patents

Abstract

The utility model discloses a mixing device and a filtering system with the same, wherein the mixing device comprises an ejector and a static mixer, the jet device comprises a body, a cavity is arranged in the body, a liquid inlet, a liquid outlet and a jet port are arranged on the body, the liquid inlet is positioned at the first end of the body, the liquid outlet is positioned at the second end of the body, the jet orifice is positioned on the peripheral wall of the body, the liquid inlet, the liquid outlet and the jet orifice are all communicated with the cavity, the liquid inlet is used for introducing turbid liquid into the cavity, the jet orifice is used for absorbing flocculating agent into the cavity, the liquid outlet is used for discharging the mixed solution of the turbid liquid and the flocculating agent in the cavity, the first end of the static mixer is communicated with the liquid outlet, and the static mixer is used for mixing the mixed solution discharged from the cavity again. The mixing device can improve the mixing effect and efficiency of the turbid liquid and the flocculating agent and reduce the cost.

Description

Mixing device and filtering system with same

Technical Field

The utility model relates to the technical field of material mixing, in particular to a mixing device and a filtering system with the same.

Background

The filtering system is a common device in the filtering process, and is not only applied to the industrial fields of mining industry, coal, chemical industry and the like, but also widely applied to the field of water treatment. For example, in filtering wastewater, it is necessary to perform a preliminary flocculation precipitation on the wastewater to remove solids or suspended substances in the wastewater, and then to perform a filtration on the wastewater in a filter to obtain a clear solution. In order to increase the settling rate of solids or suspended substances in wastewater, inorganic or organic flocculants are often added to industrial wastewater to accelerate the settling.

In the related art, the flocculant and the wastewater are mixed by directly adding the flocculant into the wastewater and then uniformly stirring. However, the above method of adding the flocculant has poor mixing effect of the wastewater and the flocculant, consumes a lot of manpower and material resources, and has high cost and low mixing efficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

To this end, an embodiment of an aspect of the present invention provides a mixing apparatus that can improve the mixing effect and efficiency of the turbid liquid and the flocculant and reduce the cost.

An embodiment of another aspect of the utility model provides a filtration system.

A mixing device according to an embodiment of the first aspect of the utility model comprises: the liquid inlet, the liquid outlet and the jet opening are communicated with the cavity, the liquid inlet is used for introducing turbid liquid into the cavity, the jet opening is used for absorbing a flocculating agent into the cavity, and the liquid outlet is used for discharging a mixed solution of the turbid liquid and the flocculating agent in the cavity; and the first end of the static mixer is communicated with the liquid outlet, and the static mixer is used for mixing the mixed solution discharged from the cavity again.

According to the mixing device provided by the embodiment of the utility model, when the turbid liquid and the flocculating agent need to be mixed, the turbid liquid is introduced into the ejector and the cavity, the flocculating agent is sucked into the cavity due to the self-absorption effect of the ejector, then the mixed turbid liquid and the flocculating agent are introduced into the static mixer from the liquid outlet of the ejector, and the static mixer can mix the mixed solution of the turbid liquid and the flocculating agent again, so that the turbid liquid and the flocculating agent are uniformly mixed. The mixing device provided by the embodiment of the utility model reduces hydraulic loss under the condition of ensuring that the turbid liquid and the flocculating agent are fully mixed, and can reduce the problems of flocculate pollution and pipeline blockage due to the self-absorption effect of the ejector, so that the effect and efficiency of the mixing device in mixing the turbid liquid and the flocculating agent are improved, and the cost is reduced.

In some embodiments, the mixing device further comprises: a first tank for holding the turbid liquid; the second tank is used for containing the flocculating agent; a first end of the first pipe is communicated with the first pool, and a second end of the first pipe is communicated with the liquid inlet; and the first end of the second pipe is communicated with the second pool, and the second end of the second pipe is communicated with the jet orifice.

In some embodiments, the first tank includes a plurality of sub tanks, the plurality of sub tanks are arranged at intervals in a direction orthogonal to the vertical direction, adjacent sub tanks are communicated with each other through a communication pipe, a lowest position of one of the adjacent sub tanks is higher than a lowest position of the other of the adjacent sub tanks, the plurality of sub tanks include a lowest sub tank, a lowest position of the lowest sub tank is lower than lowest positions of the remaining sub tanks, and the lowest sub tank is communicated with the first end of the first pipe.

In some embodiments, the ejector is a venturi ejector.

A filtration system according to an embodiment of the second aspect of the present invention includes the mixing device of any one of the above embodiments, and a filtration body having a filtration zone therein, the filtration zone being filled with a filter material, the filtration zone being in communication with the second end of the static mixer, the filtration zone being configured to filter the mixed solution discharged from the static mixer to form a clear solution.

The filtering system provided by the embodiment of the utility model has the advantages of good mixing effect and high filtering efficiency.

In some embodiments, the filtration body further has a clean liquid zone and a settling zone therein, the clean liquid zone, the filtration zone and the settling zone being arranged in the filtration body in sequence from top to bottom, the filtration system further comprising a third tube and a fourth tube, a first end of the third tube being in communication with the second end of the static mixer, a second end of the third tube being in direct communication with the settling zone, the fourth tube being in communication with the clean liquid zone, the fourth tube being for discharging the clean liquid out of the filtration body.

In some embodiments, a sludge rake is provided within the settling zone for discharging sludge within the settling zone outside of the filtering body.

In some embodiments, the filtration system further comprises a sludge basin, the bottom of the first basin and the settling zone being in communication with the sludge basin for recovering the sediment in the first basin and the settling zone.

In some embodiments, the filtration system further comprises a detection assembly, the detection assembly comprises a pressure detection part, a turbidity detection part and a liquid level detection part, the pressure detection part is used for detecting the pressure in the filtration body, the turbidity detection part is used for detecting the turbidity of the solution in the filtration body, and the liquid level detection part is used for detecting the content of the solution in the filtration body.

In some embodiments, the particle size of the filter material is 1-4 mm, the non-uniformity coefficient of the filter material is less than 1.5, and the thickness of the filter material is 300-600 mm.

Drawings

FIG. 1 is a schematic view of a filtration system according to an embodiment of the present invention.

Fig. 2 is a schematic view of an ejector and a static mixer of the mixing device of the embodiment of the present invention.

Reference numerals:

1. a first tank; 11. separating pools; 12. a communicating pipe; 13. a first tube;

2. a second tank; 21. a second tube;

3. an ejector; 31. a liquid inlet; 32. a liquid outlet; 33. a jet orifice; 34. a body;

4. a static mixer;

5. a filter body; 51. a filtration zone; 52. a clear liquid zone; 53. a settling zone; 54. a third tube; 55. a fourth tube; 56. a fifth pipe; 57. a sixth tube;

6. a sludge tank; 61. a stirring paddle;

7. a detection component; 71. a pressure detecting member; 72. a turbidity detecting member; 73. a liquid level detection member.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

A mixing device and a filtration system according to an embodiment of the present invention are described below with reference to fig. 1.

As shown in fig. 1 and 2, the mixing device according to the embodiment of the present invention includes an ejector 3 and a static mixer 4. The ejector 3 includes a body 34, a cavity is provided in the body 34, a liquid inlet 31, a liquid outlet 32 and a jet port 33 are provided on the body 34, the liquid inlet 31 is located at a first end of the body 34 (e.g., a lower end of the body 34 in fig. 2), the liquid outlet 32 is located at a second end of the body 34 (e.g., an upper end of the body 34 in fig. 2), the jet port 33 is located at a peripheral wall of the body 34, and the liquid inlet 31, the liquid outlet 32 and the jet port 33 are all communicated with the cavity. The liquid inlet 31 is used for introducing turbid liquid into the cavity, the jet opening 33 is used for sucking flocculating agent into the cavity, and the liquid outlet 32 is used for discharging mixed solution of the turbid liquid and the flocculating agent in the cavity.

As shown in fig. 2, a first end of the static mixer 4 (e.g., the lower end of the static mixer 4 in fig. 2) is connected to the liquid outlet 32, and the static mixer 4 is used for mixing the mixed solution discharged from the cavity again to uniformly mix the turbid solution and the flocculant.

It will be appreciated that a plurality of different types of plate members are provided in the static mixer 4 and that the mixed solution entering the static mixer 4 will in turn impinge upon the plate members within the static mixer to increase the velocity gradient of the laminar fluid flow or create turbulence. Specifically, in laminar flow, the mixed solution may be "split-moved-recombined", and in turbulent flow, the mixed solution may generate a strong vortex in a sectional direction and generate a strong shearing force to further split and mix the mixed solution.

According to the mixing device provided by the embodiment of the utility model, when the turbid liquid and the flocculating agent need to be mixed, the turbid liquid is introduced into the ejector 3 and the cavity, the flocculating agent is sucked into the cavity due to the self-absorption effect of the ejector 3, then the turbid liquid and the flocculating agent after being mixed are introduced into the static mixer 4 from the liquid outlet 32 of the ejector 3, and the static mixer 4 can mix the mixed solution of the turbid liquid and the flocculating agent again, so that the turbid liquid and the flocculating agent are uniformly mixed. The mixing device of the embodiment of the utility model reduces the hydraulic loss under the condition of ensuring the full mixing of the turbid liquid and the flocculating agent, and can reduce the problems of flocculate pollution and pipeline blockage due to the self-absorption effect of the ejector 3, thereby improving the effect and efficiency of the mixing device for mixing the turbid liquid and the flocculating agent and reducing the cost.

In some embodiments, as shown in fig. 1 and 2, the mixing device further comprises a first tank 1, a second tank 2, a first pipe 13, and a second pipe 21. The first tank 1 is used for containing turbid liquid, and the second tank 2 is used for containing flocculating agent. A first end of the first pipe 13 (e.g., the left end of the first pipe 13 in FIG. 1) communicates with the first tank 1, and a second end of the first pipe 13 (e.g., the upper end of the first pipe 13 in FIG. 1) communicates with the liquid inlet 31. A first end of the second pipe 21 (e.g., a left end of the second pipe 21 in fig. 1) communicates with the second tank 2, and a second end of the second pipe 21 (e.g., a right end of the second pipe 21 in fig. 1) communicates with the jet port 33. Specifically, the turbid solution is introduced into the first tank 1 and left to stand and precipitate in a natural state. The liquid after the precipitation of the turbid liquid is introduced into the ejector 3 through the first pipe 13. The flocculating agent is introduced into the second tank 2, the concentration of the flocculating agent is adjusted to 100 and 200g/t, and then the flocculating agent is sucked into the jet pipe through the second pipe 21.

Further, as shown in fig. 1, the first tank 1 includes a plurality of sub-tanks 11, the plurality of sub-tanks 11 are arranged at intervals in a direction orthogonal to the vertical direction (e.g., the left-right direction in fig. 1), adjacent sub-tanks 11 are communicated with each other by a communication pipe 12, a lowest position of one sub-tank 11 in the adjacent sub-tanks 11 is higher than a lowest position of the other sub-tank 11, the plurality of sub-tanks 11 include a lowest sub-tank, a lowest position of the lowest sub-tank is lower than lowest positions of the remaining sub-tanks 11, and the lowest sub-tank is communicated with a first end (e.g., a left end of the first pipe 13 in fig. 1) of the first pipe 13.

It can be understood that, as shown in fig. 1, the plurality of sub-tanks 11 are arranged at intervals in the left-right direction, and the plurality of sub-tanks 11 gradually decrease in the up-down direction of fig. 1, so that the lowest position of the adjacent left sub-tank 11 is higher than the lowest position of the right sub-tank 11, and then the turbid liquid can be left to stand and precipitate in each sub-tank 11 in sequence in the left-to-right direction, and the turbid liquid after the final standing and precipitation is introduced into the lowest sub-tank, so that suspended matters in the turbid liquid are further reduced, and the mixing efficiency of the mixing device is improved.

Optionally, the ejector 3 is a venturi ejector 3.

As shown in fig. 1 and 2, a filtering system according to an embodiment of another aspect of the present invention includes a mixing apparatus according to an embodiment of the present invention. The filtering system further comprises a filtering body 5, wherein the filtering body 5 is provided with a filtering area 51, the filtering area 51 is filled with granular filtering materials, the filtering area 51 is communicated with the second end (such as the upper end of the static mixer 4 in fig. 2) of the static mixer 4, and the filtering area 51 is used for filtering the mixed solution discharged from the static mixer 4 to form clear liquid.

According to the filtering system of the embodiment of the utility model, when the turbid liquid needs to be filtered, the turbid liquid and the flocculating agent are mixed by the ejector 3 and the static mixer 4, then the mixed solution is introduced into the filtering body 5 for filtering, and the mixed solution is filtered by the filtering area 51 to form a clear liquid. Therefore, the filtering system provided by the embodiment of the utility model has the advantages of good mixing effect and high filtering efficiency.

In some embodiments, as shown in fig. 1 and 2, the filter body 5 also has a clear liquid zone 52 and a settling zone 53 therein. The clear liquid zone 52, the filtering zone 51 and the settling zone 53 are arranged in the filtering body 5 from top to bottom in sequence, the filtering system further comprises a third pipe 54 and a fourth pipe 55, a first end of the third pipe 54 is communicated with a second end of the static mixer 4, a second end of the third pipe 54 is directly communicated with the settling zone 53, the fourth pipe 55 is communicated with the clear liquid zone 52, and the fourth pipe 55 is used for discharging clear liquid out of the filtering body 5.

Specifically, when the mixed solution is filtered, the mixed solution is directly introduced into the settling zone 53 through the third pipe 54, and the mixed solution flows in the direction from bottom to top in the filter body 5. When the mixed solution passes through the filtering area 51, the filtering material adsorbs the suspended matters in the mixed solution to remove the suspended matters in the mixed solution and form a clear liquid, and then the clear liquid at the upper edge of the clear liquid area 52 is discharged out of the filtering body 5 through the fourth pipe 55, and meanwhile, the sediments in the mixed solution can sink to the bottom of the settling area 53.

As shown in fig. 1 and 2, the filtration system further comprises a sludge tank 6, the bottom of the first tank 1 and the settling zone 53 are communicated with the sludge tank 6, and the sludge tank 6 is used for recovering the sediments in the first tank 1 and the settling zone 53.

Preferably, a sludge rake is arranged in the settling zone 53, and the sludge rake can accelerate the flow of the sludge in the settling zone 53, so that the sludge in the settling zone 53 can be conveniently discharged into the sludge tank 6.

Preferably, a stirring paddle 61 is arranged in the sludge tank 6, and the stirring paddle 61 can accelerate the flow of the sludge in the sludge tank 6, so that the sludge in the sludge tank 6 can be conveniently discharged.

Further, as shown in fig. 1 and 2, the filtration system further comprises a detection assembly 7, wherein the detection assembly 7 comprises a pressure detection member 71, a turbidity detection member 72 and a liquid level detection member 73. The pressure detecting member 71 is used for detecting the pressure in the filter body 5, the turbidity detecting member 72 is used for detecting the turbidity of the solution in the filter body 5, and the liquid level detecting member 73 is used for detecting the content of the solution in the filter body 5.

It is understood that the pressure detecting member 71, the turbidity detecting member 72 and the liquid level detecting member 73 may be directly connected to the filter body 5 or indirectly connected to the filter body 5. In other words, the pressure detecting member 71, the turbidity detecting member 72 and the liquid level detecting member 73 are aimed at detecting the internal liquid parameter of the filter body 5. The filter system of the embodiment can improve the visualization degree of the filter system by arranging the detection component 7.

In some embodiments, the filter material is polystyrene foam balls, the filter material has a particle size of 1 mm to 4 mm, and the filter material has a non-uniformity coefficient of less than 1.5. The thickness of the filter material is 300-600 mm. In other words, the filter material in the filtering region 51 is filled to a thickness of 300 mm to 600 mm. The filtration system of this embodiment can improve the filtration effect of mixed solution by adopting the polystyrene foam ball as the filter medium, and the unevenness of polystyrene foam ball is less, and the particle size is injectd between 1 millimeter-4 millimeters.

A mixing device and a filtration system according to some specific examples of the utility model are described below with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the filtration system includes a mixing device including a first tank 1, a second tank 2, a first pipe 13, a second pipe 21, a third pipe 54, a jet device 3, and a static mixer 4, a filter body 5, a sludge tank 6, and a detection assembly 7. The first tank 1 is used for containing turbid liquid, and the second tank 2 is used for containing flocculating agent.

As shown in fig. 1 and fig. 2, the ejector 3 includes a body 34, a cavity is provided in the body 34, a liquid inlet 31, a liquid outlet 32 and an ejection port 33 are provided on the body 34, the liquid inlet 31 is located at the lower end of the body 34, the liquid outlet 32 is located at the upper end of the body 34, the ejection port 33 is located at the peripheral wall of the body 34, and the liquid inlet 31, the liquid outlet 32 and the ejection port 33 are all communicated with the cavity. The left end of the first pipe 13 is communicated with the first tank 1, and the upper end of the first pipe 13 is communicated with the liquid inlet 31. The left end of the second pipe 21 is communicated with the second tank 2, and the right end of the second pipe 21 is communicated with the jet orifice 33.

As shown in FIGS. 1 and 2, the turbid solution is introduced into the first tank 1 and left to settle naturally. The liquid after the precipitation of the turbid liquid is introduced into the cavity of the ejector 3 through the first pipe 13. And (3) introducing the flocculating agent into the second tank 2, adjusting the concentration of the flocculating agent to 100-200g/t, and then sucking the flocculating agent into the cavity of the jet pipe through the second pipe 21. The lower end of the static mixer 4 is communicated with the liquid outlet 32, the upper end of the static mixer 4 is communicated with the left end of the third pipe 54, the right end of the third pipe 54 is introduced into the filtering body 5, and the solution mixed by the ejector 3 and the static mixer 4 is introduced into the filtering body 5 through the third pipe 54.

As shown in fig. 1, the first tank 1 includes a plurality of sub tanks 11, the plurality of sub tanks 11 are arranged at intervals in the left-right direction, adjacent sub tanks 11 are communicated with each other through a communication pipe 12, and the lowest position of one sub tank 11 in the adjacent sub tanks 11 is higher than the lowest position of the other sub tank 11, the plurality of sub tanks 11 include the lowest sub tank, the lowest position of the lowest sub tank is lower than the lowest positions of the remaining sub tanks 11, and the lowest sub tank is communicated with the left end of the first pipe 13.

It is understood that, as shown in fig. 1, a plurality of cells 11 are arranged at intervals in the left-right direction, and the plurality of cells 11 are gradually lowered in the up-down direction of fig. 1 such that the lowest position of the adjacent left cell 11 is higher than the lowest position of the right cell 11. And then the turbid liquid can be placed still and deposited in each sub-tank 11 along the direction from left to right, and finally the turbid liquid after the standing and depositing is introduced into the lowest sub-tank, so that the suspended matters in the turbid liquid are further reduced, and the mixing efficiency of the mixing device is improved.

As shown in fig. 1, the filtering body 5 has a clear liquid zone 52, a filtering zone 51 and a settling zone 53 therein, and the clear liquid zone 52, the filtering zone 51 and the settling zone 53 are arranged in the filtering body 5 in sequence from top to bottom. The filtering section 51 is filled with granular filtering materials, and the filtering section 51 is used for filtering the mixed solution discharged from the static mixer 4 to form a clear solution. The lower end of the third pipe 54 is in direct communication with the settling zone 53.

In filtering the mixed solution, the mixed solution is directly introduced into the settling zone 53 through the third pipe 54, and the mixed solution flows in the filtering body 5 in the direction from bottom to top. When the mixed solution passes through the filtering zone 51, the filtering material adsorbs suspended matters in the mixed solution to remove the suspended matters in the mixed solution and form a clear solution.

As shown in fig. 1, the filtering system further includes a fourth pipe 55, a fifth pipe 56 and a sixth pipe 57, the fourth pipe 55 is communicated with the clear liquid zone 52, and the fourth pipe 55 is used for discharging the clear liquid to the outside of the filtering body 5. The upper end of the fifth pipe 56 is communicated with the settling zone 53, the lower end of the fifth pipe 56 is communicated with the sludge tank 6, the left end of the sixth pipe 57 is communicated with the bottoms of the sub-tanks 11, and the right end of the sixth pipe 57 is communicated with the sludge tank 6, so that sediments at the bottoms of the sub-tanks 11 and in the settling zone 53 are led into the sludge tank 6.

Further, a sludge rake is arranged in the settling zone 53 to accelerate the flow of the sludge in the settling zone 53, so that the sludge in the settling zone 53 can be conveniently discharged into the sludge tank 6. The stirring paddle 61 is arranged in the sludge tank 6 to accelerate the flow of the sludge in the sludge tank 6, so that the sludge in the sludge tank 6 can be conveniently discharged.

As shown in fig. 1, the detection assembly 7 includes a pressure detection member 71, a turbidity detection member 72, and a liquid level detection member 73. Pressure detection piece 71, turbidity detection piece 72 and liquid level detection piece 73 link to each other with filtering body 5, and pressure detection piece 71 is arranged in detecting the pressure in filtering body 5, and turbidity detection piece 72 is arranged in detecting the turbidity of solution in filtering body 5, and liquid level detection piece 73 is arranged in detecting the content of solution in filtering body 5. The filter system of the embodiment can improve the visualization degree of the filter system by arranging the detection component 7.

Furthermore, the filter material is a polystyrene foam ball, the particle size of the filter material is 1 mm-4 mm, and the non-uniformity coefficient of the filter material is less than 1.5. The thickness of the filter material is 300-600 mm. In other words, the filter material in the filtering region 51 is filled to a thickness of 300 mm to 600 mm. The filtration system of this embodiment can improve the filtration effect of mixed solution by adopting the polystyrene foam ball as the filter medium, and the unevenness of polystyrene foam ball is less, and the particle size is injectd between 1 millimeter-4 millimeters.

The filtering system provided by the embodiment of the utility model has the advantages of good mixing effect and high filtering efficiency.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A mixing device, comprising:

the liquid inlet, the liquid outlet and the jet opening are communicated with the cavity, the liquid inlet is used for introducing turbid liquid into the cavity, the jet opening is used for absorbing a flocculating agent into the cavity, and the liquid outlet is used for discharging a mixed solution of the turbid liquid and the flocculating agent in the cavity;

and the first end of the static mixer is communicated with the liquid outlet, and the static mixer is used for mixing the mixed solution discharged from the cavity again.

2. The mixing device of claim 1, further comprising:

a first tank for holding the turbid liquid;

the second tank is used for containing the flocculating agent;

a first end of the first pipe is communicated with the first pool, and a second end of the first pipe is communicated with the liquid inlet;

and the first end of the second pipe is communicated with the second pool, and the second end of the second pipe is communicated with the jet orifice.

3. The mixing device according to claim 2, wherein the first tank includes a plurality of sub tanks arranged at intervals in a direction orthogonal to a vertical direction, adjacent ones of the sub tanks are communicated with each other through a communication pipe, a lowest position of one of the sub tanks is higher than a lowest position of another one of the sub tanks, the plurality of sub tanks includes a lowest sub tank, the lowest position of the lowest sub tank is lower than lowest positions of the remaining sub tanks, and the lowest sub tank is communicated with the first end of the first pipe.

4. A mixing device according to any one of claims 1-3, wherein the ejector is a venturi ejector.

5. A filtration system comprising the mixing device of any one of claims 1-4, the filtration system further comprising:

the filter body, it has the filtering area to filter this internal, the filtering area intussuseption is filled with the filter material, the filtering area with static mixer's second end intercommunication, the filtering area be used for filtering follow static mixer exhaust mixed solution is in order to form the clear liquid.

6. A filtration system according to claim 5, further having a clean liquid zone and a settling zone within the filtration body, the clean liquid zone, the filtration zone and the settling zone being arranged in the filtration body from top to bottom,

the filtration system still includes third pipe and fourth pipe, the first end of third pipe with the second end intercommunication of static mixer, the second end of third pipe with settling zone direct intercommunication, the fourth pipe with clear liquid district intercommunication, the fourth pipe is used for with clear liquid in the clear liquid district discharges to outside filtering the body.

7. A filtration system according to claim 6, wherein a sludge rake is provided within the settling zone for discharging sludge within the settling zone outside the filtering body.

8. The filtration system of claim 6, further comprising a sludge basin and a first basin, the first basin for holding the turbid liquid, the bottom of the first basin and the settling zone being in communication with the sludge basin, the sludge basin for recovering the sediment in the first basin and the settling zone.

9. The filtration system of claim 5, further comprising a detection assembly comprising a pressure detection member for detecting pressure within the filtration body, a turbidity detection member for detecting turbidity of the solution in the filtration body, and a liquid level detection member for detecting the content of the solution in the filtration body.

10. The filtration system of any one of claims 5 to 9, wherein the particle size of the filter material is 1 to 4 mm, the non-uniformity coefficient of the filter material is less than 1.5, and the thickness of the filter material is 300-600 mm.

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