CN209835843U - Coagulation air flotation copolymerization quick separation device - Google Patents

Abstract

The utility model relates to the technical field of environmental engineering, and specifically discloses a coagulation air flotation copolymerization rapid separation device, comprising a sewage tank, a sewage inlet pipe, an acid-base adding pipe, a coagulant adding pipe, a sewage pump, a first connecting pipe, First drain pipe, dissolved air pump, air inlet nozzle, second drain pipe, first coagulant aid adding pipe, copolymerization reactor box, second coagulant aid adding pipe, mixer, stirring rod, diversion pipe, separation device A box body, a partition, a sediment collection pipe, a scum collection tank, a clean water collection pipe, a third connecting pipe, a clean water collection box and an outlet pipe. The utility model can effectively treat the residual impurities in the sewage treated by the coagulation sedimentation tank, the treatment operation is simple, the treatment cost is low, and the suspended particles, emulsified oil, fiber, heavy metal and other impurities in the sewage can be effectively removed, which is environmentally friendly and pollution-free.

Description

Coagulation air flotation copolymerization quick separation device

technical field

The utility model relates to the technical field of environmental engineering, in particular to a coagulation air flotation copolymerization quick separation device.

Background technique

With the continuous increase of population in our country, water resources have been severely damaged, and our country is facing the problem of water resource depletion. Water resources are the guarantee for human survival. It is a non-renewable resource. It not only affects people's production and life, but also has an important impact on my country's urban construction and the improvement of my country's comprehensive national strength and international competitiveness. It can be seen that it is urgent to strengthen the urban sewage treatment work in our country. However, in recent years, the process of urbanization in my country has caused serious problems of water pollution. The amount of urban sewage discharge is increasing, and the sources of wastewater pollution in my country mainly include industrial sources, agricultural sources, urban living sources, and a small number of centralized pollution facility discharge sources. Among them, relevant data show that urban domestic sewage discharge is increasing in my country The main cause of sewage discharge.

On the other hand, during the treatment process of the sewage treatment plant, the sewage first flows into the coarse grid, and after the larger floating debris is removed through the coarse grid, then the sewage is removed through the fine grid to remove the fine floating debris, and then in the swirling flow. The sediment is removed in the grit chamber, and the sediment deposited at the bottom of the grit chamber is discharged into the sludge storage tank through the sand suction machine; the sewage after sand removal enters the coagulation sedimentation tank of the back-end treatment facilities and equipment, such as the coagulation sedimentation tank It mainly removes suspended solid particles in sewage, and the floc particles formed by coagulation are small, light in weight and poor in sedimentation performance. This sewage treatment has brought great challenges. Therefore, the utility model of a sewage treatment method to deal with the residual impurities in the sewage treated by the coagulation sedimentation tank is of great significance to promote the development of sewage treatment and protect the reuse of water resources.

Utility model content

The purpose of the utility model is to provide a coagulation air flotation copolymerization rapid separation device to effectively treat the residual impurities in the sewage treated by the coagulation sedimentation tank.

In order to solve the above technical problems, the utility model provides a coagulation air flotation copolymerization quick separation device, including a sewage tank, a sewage inlet pipe, an acid-base adding pipe, a coagulant adding pipe, a sewage pump, a first connecting pipe, a second One drain pipe, dissolved air pump, air inlet nozzle, second drain pipe, first coagulant aid adding pipe, copolymerization reactor box, second coagulant aid adding pipe, mixer, stirring rod, draft tube, separation device box Body, clapboard, sediment collection pipe, scum collection tank, clean water collection pipe, third connecting pipe, clean water collection box and outlet pipe; one end of the sewage inlet pipe is located in the sewage pool, and the other end is connected to the The water inlet of the sewage pump is connected, the acid-base adding pipe and the coagulant adding pipe are connected to the sewage inlet pipe, one end of the first connecting pipe is connected to the water outlet of the sewage pump, and the other end is located at In the lower part of the copolymerization reactor box, one end of the first drain pipe is connected to the water outlet of the sewage pump, and the other end is connected to the water inlet of the dissolved air pump, and the air inlet nozzle is connected to the water outlet of the dissolved air pump. One end of the second drain pipe is connected to the water outlet of the dissolved air pump, the other end is connected to the first connecting pipe, and the first coagulant adding pipe is connected to the first Connecting pipe, the second coagulation aid adding pipe is connected to the middle part of the copolymerization reactor box, the stirring rod of the mixer is located in the copolymerization reactor box, and the partition plate and the sediment collection pipe are all provided with In the separation device box, the partition is an inverted cone with upper and lower openings, and the upper opening of the sediment collection pipe corresponds to the lower opening of the partition with a gap left. One end is connected to the upper end of the copolymerization reactor box, the other end is located at the center of the partition, the upper part of the separation device box is provided with a scum collection tank, and one end of the clean water collection pipe is located at the The other end of the lower part of the separation device box is connected to the clean water collection box through the third connecting pipe, and the water outlet pipe is connected to the bottom of the clean water collection box.

Preferably, the sewage inlet pipe, the acid-base adding pipe and the coagulant adding pipe are all provided with regulating valves.

Preferably, one regulating valve is provided on the first coagulation aid adding pipe, and two regulating valves are arranged on the second coagulant aid feeding pipe.

Preferably, the first connecting pipe is sequentially provided with a regulating valve, a flow meter, a regulating valve, a sampling faucet and a regulating valve.

Preferably, the first drain pipe is connected with a second connecting pipe, the second connecting pipe is provided with a regulating valve, and both sides of the first drain pipe are connected with the second connecting pipe. Regulating valve, the first drain pipe is also provided with a pressure gauge, the second drain pipe is provided with a regulating valve, a flow meter, a pressure gauge, a sampling faucet and a regulating valve in sequence, and the inlet nozzle is provided with an inlet Air regulating valve and air flow meter.

Preferably, the lower part of the stirring rod is provided with a first stirring blade, and the middle part of the stirring rod is provided with a second stirring blade.

Preferably, a scum outlet pipe is provided at the lower part of the scum collection tank.

Preferably, an emptying pipe is provided at the lower part of the separation device box, and a regulating valve is provided on the emptying pipe.

Preferably, the part of the clean water collecting pipe inside the tank of the separation device is a perforated pipe.

Preferably, a water level adjustment plug and a gulf stream tube are provided in the clean water collection tank, and the gulf stream tube is connected to the third connecting pipe.

The coagulation air flotation copolymerization rapid separation device of the utility model can effectively treat the residual impurities in the sewage treated by the coagulation sedimentation tank, the treatment operation is simple, the treatment cost is low, and the suspended particles, emulsified oil and fibers in the sewage can be effectively removed , heavy metals and other impurities, environmental protection and pollution-free, has broad market prospects and application value. Make full use of the basic principle of coagulation, air flotation and co-coagulation, release dense ultra-micro bubbles through the pre-dosing and mixing of sewage pumps and the dissolved air release system of multiple media pumps, and add coagulation aids to form flocs , the bridging, enveloping, and netting effects of the air-bearing flocs occur. The copolymer complex formed by these three combinations will not only not be affected by the shear force and cause the air bubbles to fall off during the floating process, but the scum is very stable, and The water content is greatly reduced, and because the diameter of the formed copolymer complex is much larger than that of the traditional air flotation, the density difference with water is also much larger. According to Stokes' law, the floating speed is proportional to the square of the particle size, and is proportional to the particle size. It is directly proportional to the density difference of water, so the floating speed is faster than the traditional air flotation, shortening the reaction and separation time, which greatly improves the separation efficiency and stability of the air flotation equipment. The coagulant aid is added to the system successively to improve the adsorption and bridging function, so that the added coagulant aid PAM water and air can be mixed more quickly and evenly to form a copolymer complex of larger bubbles and flocs, which is called copolymerization. The formation of the complex provides a favorable physical and chemical space, and improves the stability and floating ability of the floating scum. The upper partition of the solid-liquid separation area is set to form an inverted cone, and the lower port of the inverted cone is connected to the upper end of the sludge collection pipe. The mixed liquid passes through the coagulation and air flotation in the solid-liquid separation reaction area, and the inverted cone partition is effective. The scum is easy to automatically float up and distribute to the liquid surface of the separation area and enter the scum collection tank, which prevents the mixing of the clean water in the purification collection area and the scum, and facilitates the mixing and separation of the mixed liquid. The outlet water controls the scum discharge of the separation device box by adjusting the water level adjustment plug to realize the concentration and dehydration of the scum in the solid-liquid separation area, which can further reduce the moisture content of the scum, which is simple and convenient. A number of medium-dissolved air pumps are used to synchronously integrate the drug, gas-solid-liquid three-phase coagulation and copolymerization in the copolymerization reaction zone, simplify the process, and produce stable gas-solid-liquid three-phase flocs, improve air flotation efficiency, stabilize gas Floatation effect: The left and right coagulation, air flotation, copolymerization and separation integration methods and devices are adopted, which occupy a small area and can realize rapid coagulation, copolymerization and air flotation, reduce the energy consumption of dissolved air, improve the efficiency of air flotation, and simplify the air flotation process. The coagulation air flotation copolymerization rapid separation device of the utility model can be used to treat colloids and suspended matter in sewage and waste water produced in the production and living process, and complete solid-liquid separation.

Description of drawings

Fig. 1 is a schematic structural view of a coagulation air flotation copolymerization quick separation device according to an embodiment of the present invention.

In the figure, 1: sewage pool; 2: sewage inlet pipe; 3: regulating valve; 4: acid-base adding pipe; 5: coagulant adding pipe; 6: sewage pump; 7: regulating valve; 8: sewage flowmeter; 9: regulating valve; 10: sampling faucet; 11: first connecting pipe; 12: regulating valve; 13: regulating valve; 14: second connecting pipe; 15: regulating valve; 16: vacuum gauge; 17: air flow meter; 18: Air intake regulating valve; 19: Air intake nozzle; 20: Dissolved air pump; 21: Regulating valve; 22: Dissolved air water flow meter; 23: Pressure gauge; 24: Sampling faucet; 25: Regulating valve; 26: First Coagulant aid adding pipe; 27: regulating valve; 28: second coagulant aid adding pipe; 29: regulating valve; 30: mixer; 31: stirring rod; 32: second stirring blade; 33: first stirring blade; 34 : diversion pipe; 35: clapboard; 36: sediment collection pipe; 37: scum collection tank; 38: clean water collection pipe; 39: third connecting pipe; 40: water level adjustment plug; 41: elbow pipe; 42: water outlet pipe; 43: separation device box; 44: copolymerization reactor box; 45: scum outlet pipe; 46: emptying pipe; 101: copolymerization reaction area; 102: solid-liquid separation area; 103: water purification collection area; 104: water level adjustment area.

Detailed ways

The implementation of the present utility model will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

In the description of the present utility model, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

As shown in Figure 1, the coagulation air flotation copolymerization rapid separation device of this embodiment includes: a sewage tank 1, a sewage inlet pipe 2, an acid-base adding pipe 4, a coagulant adding pipe 5, a sewage pump 6, a first connecting pipe 11. The first drainage pipe, the dissolved air pump 20, the air inlet nozzle 19, the second drainage pipe, the first coagulant aid adding pipe 26, the copolymerization reactor box 44, the second coagulant aid adding pipe 28, the mixer 30, the stirring Rod 31, diversion pipe 34, separation device box 43, partition 35, sediment collection pipe 36, scum collection tank 37, clean water collection pipe 38, third connecting pipe 39, clean water collection box and outlet pipe 42 .

One end of the sewage inlet pipe 2 is located in the sewage pool 1, the other end is connected to the water inlet of the sewage pump 6, the acid-base adding pipe 4 and the coagulant adding pipe 5 are connected to the sewage pipe 2, and one end of the first connecting pipe 11 It is connected with the water outlet of the sewage pump 6, and the other end is located at the bottom of the copolymerization reactor box 44. One end of the first drain pipe is connected with the water outlet of the sewage pump 6, and the other end is connected with the water inlet of the dissolved air pump 20, and the air intake The nozzle 19 is connected to the air inlet of the dissolved air pump 20, one end of the second drain pipe is connected to the water outlet of the dissolved air pump 20, the other end is connected to the first connecting pipe 11, and the first coagulant adding pipe 26 is connected to the first connecting pipe. Pipe 11, the second coagulation aid adding pipe 28 are connected to the middle part of the copolymerization reactor box 44, the stirring rod 31 of the mixer 30 is located in the copolymerization reactor box 44, and the dividing plate 35 and the sludge collection pipe 36 are all arranged at the separation In the device box 43, the partition is an inverted conical shape with upper and lower openings, the upper opening of the sediment collection pipe 36 corresponds to the lower opening of the partition 35 and there is a gap, and one end of the draft pipe 34 is connected to the copolymerization reactor box. The upper end of 44 is connected, and the other end is positioned at the central position of dividing plate 35, and the top of separator casing 43 is provided with scum collecting tank 37, and one end of clean water collecting pipe 38 is positioned at the bottom in separator casing 43, and the other end passes through The third connecting pipe 39 is connected with the clean water collection box, and the water outlet pipe 42 is connected with the bottom of the clean water collection box.

The sewage inlet pipe 2 is provided with a regulating valve 3, and the acid-base adding pipe 4 and the coagulant adding pipe 5 are all provided with regulating valves. The first coagulant aid adding pipe 26 is provided with a regulating valve, and the second coagulant aid feeding pipe 28 is provided with two regulating valves. A regulating valve 7 , a flow meter 8 , a regulating valve 9 , a sampling faucet 10 and a regulating valve 27 are sequentially provided on the first connecting pipe 11 . The first drain pipe is connected with a second connecting pipe 14, the second connecting pipe 14 is provided with a regulating valve 13, and the first drain pipe is respectively provided with a regulating valve 12 and a regulating valve 15 on both sides of the joint with the second connecting pipe 14 , the first drain pipe is also provided with a pressure gauge 16, the second drain pipe is provided with a regulating valve 21, a flow meter 22, a pressure gauge 23, a sampling faucet 24 and a regulating valve 25 in sequence, and the air inlet nozzle 19 is provided with an air inlet Regulating valve 18 and air flow meter 17. The lower part of the stirring rod 31 is provided with a first stirring blade 33 , and the middle part of the stirring rod 31 is provided with a second stirring blade 32 . The bottom of the scum collection tank 37 is provided with a scum outlet pipe 45 . The bottom of the separation device box 43 is provided with an emptying pipe 46 , and a regulating valve is arranged on the emptying pipe 46 . The part of the clean water collecting pipe 38 in the separating device casing 43 is a perforated pipe. A water level adjustment plug 40 and a gulf stream pipe 41 are arranged in the clean water collecting tank, and the gulf stream pipe 41 is connected with the third connecting pipe 39 .

The coagulation air flotation copolymerization rapid separation device of this embodiment can be divided into: copolymerization reaction zone 101, solid-liquid separation zone 102, clean water collection zone 103, water level adjustment zone 104, by setting independent copolymerization reaction system, independent solid The liquid separation system is used to realize the optimization of the coagulation air flotation copolymerization air flotation separation process. At the same time, the variable water level slag discharge method is adopted in the scum discharge method, which is simple and convenient. The whole set of equipment occupies a small area, requires less investment and has high efficiency.

The sewage dosing and mixing system consists of sewage pump 6, coagulant adding pipe 5, acid or alkali adding pipe 4, coagulant PAM adding pipe 26 and 28, coagulant aid PAM adding pipe 28, flow meter 8, regulating valve 3/ 7/9, composed of sampling tap 10; coagulant and pH regulator are sucked in by the self-priming action of sewage pump 6, and the dosing amount is controlled by valve 4 and valve 5, and the high-speed rotating cutting of the impeller of the water pump makes the liquid medicine and Sewage is mixed, the outlet pipe of the sewage pump is connected with the pipeline 11 in turn to the regulating valve 7, the flow meter 8, the regulating valve 9, the sampling faucet 10 and the outlet pipe of the dissolved air pump, and the coagulant adding pipe 26 is controlled to add sewage and dissolved air through the regulating valve The dosing point after the water is mixed; the coagulant aid PAM adding pipe 28 is controlled to be added to the copolymerization reaction zone through the regulating valve 29 .

Multi-media pump dissolved air system is composed of dissolved air pump 20, flow meter 22, pressure gauge 23, sampling faucet 24, valves, etc.; /13/14/15 Control the flow, and inhale air through the air flow meter 17 and the air intake regulating valve 18 in front of the pump at the inlet nozzle 19 of the dissolved air pump. After the air is repeatedly cut by the dissolved air pump, the pressure is maintained at 0.3-0.5 Within the range of Mpa, according to the characteristics of the copolymerization and the characteristics of the microbubble release process, the air dispersed and dissolved in the water can be released quickly through the regulating valve to ensure that the diameter of the microbubbles released is 1-10 microns, and the pressure is displayed by the pressure gauge 30. The air-water flowmeter 22 controls the addition amount, and merges with the mixed sewage after the dosing, and then merges with the coagulant PAM added by the coagulant dosing pipe 26, and enters the bottom of the copolymerization reaction zone a through the pipeline after confluence.

The copolymerization reaction system is composed of a copolymerization reaction box 44, a mixed liquid inlet pipe and a valve 27, a coagulation aid adding pipe and a valve 28/29, a mixer 30, a stirring rod 31, a stirring blade 32/33, and a water outlet guide pipe 34; The soda water dosing mixture enters from the bottom of the box, and starts to swirl and mix when it meets the stirring blade 33. When it reaches the middle of the box, it meets the coagulant PAM, and then is fully mixed by the stirring blade 32. The water that has been evenly mixed in the upper part of the box The water outlet guide pipe 32 is connected to the liquid level in the copolymerization reaction zone, and the whole body is inclined at 60 degrees to the upper end of the precipitation collection pipe in the solid-liquid separation zone.

The solid-liquid separation system includes a solid-liquid separation area b, a clean water collection area c, and a water level adjustment area d; the solid-liquid separation area b is composed of an upper partition 35 and a lower sludge collection pipe 36, and the connection position between the partition and the sludge collection pipe is An overflow port is provided, and the clean water area c is composed of the upper end scum collection tank 37 and the bottom clean water collection pipe 38; the incoming water passes through the diversion pipe 34 and is surrounded by the upper end partition of the solid-liquid separation area b. Water enters the central position, and the mixed liquid enters the sludge collection pipe 36, and then the coagulated flocs float to the scum collection tank 37 through air flotation, so as to realize rapid solid-liquid separation, while the heavier floc suspended matter is The sediment in the sludge collection tank 36 is removed through the bottom emptying pipe and valve 46, and the clean water overflows from the overflow port at the upper end of the sludge collection pipe 36 to the clean water collection area c, and the clean water collection pipe 38 at the bottom of the clean water collection area is connected to the The lower ends of the water outlet pipe 39 are connected, and the clean water enters the water level adjustment area d on the outside of the separation device casing 43. A water level adjustment plug 40, an elbow pipe 41 and a water outlet pipe 42 are arranged in it. When the water level rises or falls, the adjustable water level adjustment plug 40 is adjusted to an appropriate water level. At this time, the water level adjustment plug is closed, and the water flows out from the elbow 41 and is discharged through the outlet pipe 42. Outriggers are installed on the outside of the bottom of the device.

The working principle of the coagulation air flotation copolymerization quick separation device of the present embodiment includes:

A. Dosing and mixing system: the coagulant and pH regulator are sucked in through the self-priming action of the sewage pump, the dosing amount is controlled by the flow meter, and the high-speed rotating cutting of the impeller of the water pump makes the medicine liquid mix with the sewage, and the outlet pipe connects the flow rate Gauge, regulating valve, pressure gauge, sampling faucet, coagulant aid is controlled by the regulating valve to the dosing point added to the mixed reaction system;

B. Multi-media pump dissolved air system: the connection point between the water inlet pipe of the dissolved air pump and the outlet pipe of the sewage pump is connected, and the flow is controlled by a valve. Quantitative air, the air is repeatedly cut by the sewage pump, so that the gas is dispersed and dissolved in the sewage, and the pressure is maintained within the range of 0.2-0.3Mpa. The dissolved steam water outlet pipe is connected with a flow meter, a regulating valve, a pressure gauge, and a sampling faucet, and is pumped out with the sewage The front end of the water pipe dosing point converges, and the dosing sewage and dissolved air water are mixed and reacted together through the coagulant aid added at the connected coagulant dosing point to form a copolymerization complex of larger particle size air bubbles and flocs, which enters the copolymerization reaction Internal coagulation and copolymerization.

C. Copolymerization reaction system: The dissolved gas water after dosing and mixing enters the bottom of the copolymerization reactor box in the copolymerization reaction zone and flows from bottom to top, and at the same time, in the middle of the copolymerization reactor box, PAM is controlled by the coagulant adding pipe, and then Driven by the mixer, through the action of the stirring rod and the stirring blade, the added coagulant PAM water and air are mixed more quickly and evenly, forming a copolymer complex of larger air bubbles and flocs, which overflows through the diversion tube Enter the solid-liquid separation for separation.

D. Solid-liquid separation system: After the mixing and flocculation of the liquid medicine is completed, the mixture of large-sized air bubbles and flocculent copolymer complexes will overflow into the solid-liquid separation area through the diversion tube, and the diversion tube will be in the solid-liquid separation Water enters the center of the inverted cone surrounded by the partition at the upper end of the area, and the lower port of the inverted cone is connected to the upper end of the sludge collection pipe. After the mixed solution enters the sludge collection pipe, it forms a copolymer complex of larger air bubbles and flocs. The difference between the density and the density of water is large, and the particle size is much larger than the particles in the raw sewage, which will automatically rise to the top of the separation zone, forming a scum layer to achieve rapid solid-liquid separation, and the scum is discharged through the collection tank and the sludge discharge pipe; The bottom mud is removed through the bottom emptying pipe and valve; the separated clean water overflows from the overflow at the upper end of the collecting pipe to the clean water collection area, and the lower part of the clean water collection area is equipped with a perforated water collection pipe, which is connected to the lower end of the outlet pipe , the outlet water enters the water level adjustment area outside the separation device box through the outlet pipe, after adjusting the appropriate water level, close the water level adjustment plug, the water flows out from the curved flow pipe, and the clean water is discharged through the drain outlet pipe.

The coagulation air flotation copolymerization rapid separation device of the utility model can effectively treat the residual impurities in the sewage treated by the coagulation sedimentation tank, the treatment operation is simple, the treatment cost is low, and the suspended particles, emulsified oil and fibers in the sewage can be effectively removed , heavy metals and other impurities, environmental protection and pollution-free, has broad market prospects and application value. Make full use of the basic principle of coagulation, air flotation and co-coagulation, release dense ultra-micro bubbles through the pre-dosing and mixing of sewage pumps and the dissolved air release system of multiple media pumps, and add coagulation aids to form flocs , the bridging, enveloping, and netting effects of the air-bearing flocs occur. The copolymer complex formed by these three combinations will not only not be affected by the shear force and cause the air bubbles to fall off during the floating process, but the scum is very stable, and The water content is greatly reduced, and because the diameter of the formed copolymer complex is much larger than that of the traditional air flotation, the density difference with water is also much larger. According to Stokes' law, the floating speed is proportional to the square of the particle size, and is proportional to the particle size. It is directly proportional to the density difference of water, so the floating speed is faster than the traditional air flotation, shortening the reaction and separation time, which greatly improves the separation efficiency and stability of the air flotation equipment. The coagulant aid is added to the system successively to improve the adsorption and bridging function, so that the added coagulant aid PAM water and air can be mixed more quickly and evenly to form a copolymer complex of larger bubbles and flocs, which is called copolymerization. The formation of the complex provides a favorable physical and chemical space, and improves the stability and floating ability of the floating scum. The upper partition of the solid-liquid separation area is set to form an inverted cone, and the lower port of the inverted cone is connected to the upper end of the sludge collection pipe. The mixed liquid passes through the coagulation and air flotation in the solid-liquid separation reaction area, and the inverted cone partition is effective. The scum is easy to automatically float up and distribute to the liquid surface of the separation area and enter the scum collection tank, which prevents the mixing of the clean water in the purification collection area and the scum, and facilitates the mixing and separation of the mixed liquid. The outlet water controls the scum discharge of the separation device box by adjusting the water level adjustment plug to realize the concentration and dehydration of the scum in the solid-liquid separation area, which can further reduce the moisture content of the scum, which is simple and convenient. A number of medium-dissolved air pumps are used to synchronously integrate the drug, gas-solid-liquid three-phase coagulation and copolymerization in the copolymerization reaction zone, simplify the process, and produce stable gas-solid-liquid three-phase flocs, improve air flotation efficiency, stabilize gas Floatation effect: The left and right coagulation, air flotation, copolymerization and separation integration methods and devices are adopted, which occupy a small area and can realize rapid coagulation, copolymerization and air flotation, reduce the energy consumption of dissolved air, improve the efficiency of air flotation, and simplify the air flotation process. The coagulation air flotation copolymerization rapid separation device of the utility model can be used to treat colloids and suspended matter in sewage and waste water produced in the production and living process, and complete solid-liquid separation.

The embodiments of the invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principle and practical application of the invention, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for particular purposes.

Claims (10)

1. A coagulation air-flotation copolymerization quick separation device is characterized by comprising a sewage pool (1), a sewage inlet pipe (2), an acid-base adding pipe (4), a coagulant adding pipe (5), a sewage pump (6), a first connecting pipe (11), a first water discharge pipe, a dissolved air pump (20), an air inlet nozzle (19), a second water discharge pipe, a first coagulant aid adding pipe (26), a copolymerization reactor box body (44), a second coagulant aid adding pipe (28), a stirrer (30), a stirring rod (31), a guide pipe (34), a separation device box body (43), a partition plate (35), a settled sludge collecting pipe (36), a scum collecting tank (37), a purified water collecting pipe (38), a third connecting pipe (39), a purified water collecting box and a water outlet pipe (42); one end of the sewage inlet pipe (2) is positioned in the sewage pool (1), the other end of the sewage inlet pipe is connected with a water inlet of the sewage pump (6), the acid-base adding pipe (4) and the coagulant adding pipe (5) are connected into the sewage inlet pipe (2), one end of the first connecting pipe (11) is connected with a water outlet of the sewage pump (6), the other end of the first connecting pipe is positioned at the lower part of the copolymerization reactor box body (44), one end of the first water discharge pipe is connected with a water outlet of the sewage pump (6), the other end of the first water discharge pipe is connected with a water inlet of the dissolved air pump (20), the air inlet nozzle (19) is connected with an air inlet of the dissolved air pump (20), one end of the second water discharge pipe is connected with a water outlet of the dissolved air pump (20), the other end of the second water discharge pipe is connected with the first connecting pipe (11), the first coagulant adding pipe (26) is connected into the first, the second coagulant aid adding pipe (28) is connected to the middle part of the copolymerization reactor box body (44), a stirring rod (31) of the stirrer (30) is positioned in the copolymerization reactor box body (44), the partition plate (35) and the sludge settling collecting pipe (36) are arranged in the separation device box body (43), the partition plate is in an inverted cone shape with an upper opening and a lower opening, an upper opening of the sludge settling collecting pipe (36) corresponds to a lower opening of the partition plate (35) and is provided with a gap, one end of the flow guide pipe (34) is connected with the upper end of the copolymerization reactor box body (44), the other end of the flow guide pipe is positioned at the central position of the partition plate (35), a scum collecting tank (37) is arranged at the upper part of the separation device box body (43), one end of the water purifying collecting pipe (38) is positioned at the lower part of the separation device box body (43), and the other end of the water purifying collecting pipe is connected with the water purifying collecting, the water outlet pipe (42) is connected with the bottom of the purified water collecting box.

2. The coagulation air-flotation copolymerization rapid separation device according to claim 1, wherein the sewage inlet pipe (2), the acid-base adding pipe (4) and the coagulant adding pipe (5) are respectively provided with an adjusting valve.

3. The coagulation air-flotation copolymerization rapid separation device as claimed in claim 1, wherein the first coagulant aid addition pipe (26) is provided with one regulating valve, and the second coagulant aid addition pipe (28) is provided with two regulating valves.

4. The coagulation air-flotation copolymerization rapid separation device as claimed in claim 1, wherein the first connecting pipe (11) is provided with a regulating valve, a flow meter, a regulating valve, a sampling faucet and a regulating valve in sequence.

5. The coagulation air-flotation copolymerization rapid separation device according to claim 1, wherein the first drain pipe is connected with a second connecting pipe (14), the second connecting pipe (14) is provided with a regulating valve, the first drain pipe is provided with regulating valves on both sides of the joint with the second connecting pipe (14), the first drain pipe is further provided with a pressure gauge, the second drain pipe is provided with a regulating valve, a flow meter, a pressure gauge, a sampling faucet and a regulating valve in sequence, and the air inlet nozzle (19) is provided with an air inlet regulating valve (18) and an air flow meter (17).

6. The coagulation air-flotation copolymerization rapid separation device according to claim 1, wherein a first stirring blade (33) is provided at the lower part of the stirring rod (31), and a second stirring blade (32) is provided at the middle part of the stirring rod (31).

7. The coagulation air-flotation copolymerization rapid separation device according to claim 1, wherein the lower part of the scum collection tank (37) is provided with a scum outlet pipe (45).

8. The coagulation air-flotation copolymerization rapid separation device as claimed in claim 1, wherein an evacuation pipe (46) is provided at the lower part of the separation device box (43), and the evacuation pipe (46) is provided with a regulating valve.

9. The coagulation air-flotation copolymerization rapid separation device according to claim 1, wherein the part of the purified water collection pipe (38) in the separation device box body (43) is a perforated pipe.

10. The coagulation air-flotation copolymerization rapid separation device according to claim 1, wherein a water level adjusting plug (40) and a gulf stream pipe (41) are arranged in the water purification collection tank, and the gulf stream pipe (41) is connected with the third connecting pipe (39).