CN106380019B - Novel water purifies device - Google Patents
Novel water purifies device Download PDFInfo
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- CN106380019B CN106380019B CN201610926046.5A CN201610926046A CN106380019B CN 106380019 B CN106380019 B CN 106380019B CN 201610926046 A CN201610926046 A CN 201610926046A CN 106380019 B CN106380019 B CN 106380019B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention relates to a novel water body purification device, which comprises a microbubble generator, a coagulator, a PAC dosing device, a PAM dosing device, a sewage regulating tank, a water distribution assembly and an air flotation tank, wherein the water distribution assembly comprises a water inlet main pipe and an output pipe communicated with the water inlet main pipe, a plurality of contact chambers are uniformly arranged on the left side and the right side of an inner cavity of the air flotation tank along the length direction, the output pipe is communicated with the contact chambers, a clear water chamber and a triangular high-resistance clear water collecting assembly are also arranged in the air flotation tank, the clear water chamber is positioned in the middle of the inner cavity of the air flotation tank, the triangular high-resistance clear water collecting assembly comprises a flow limiting plate and a baffle plate, the flow limiting plate and the two baffle plates surround to form a clear water collecting cavity, the clear water collecting cavity is communicated with the clear water chamber, and a folded plate type inclined plate assembly is arranged between the baffle plate and the contact chambers.
Description
Technical Field
The invention relates to sewage treatment equipment, in particular to a novel water body purification device.
Background
Organic pollution generally exists in main rivers in China, and non-point source pollution is increasingly prominent. According to statistics, more than 1/4 of rivers and river reach in China cannot meet the most basic requirement of irrigation water (the V-type water quality standard in China) due to pollution; for river reach alone, river reach with serious water pollution and unable to be used for irrigation (i.e. inferior to class V) accounts for about 10.6%, water loses use value, and river reach with pollution (equivalent to class IV and class V) accounts for about 46.5%.
River regulation is the most concerned by governments in recent years, and river water treatment has a common characteristic that the minimum treatment capacity is tens of thousands of tons every day, and the maximum treatment capacity is millions of tons every day. The maximum transportation capacity of a conventional dissolved air flotation machine in the market is 2500 cubic meters per day, and if the maximum transportation capacity is calculated according to the treatment capacity of river water 20000 cubic meters per day, 8 devices are required to operate simultaneously. The owner needs to order multiple air bearing platforms, thereby increasing the investment cost of the owner. And the water reflux amount of the conventional pressure dissolved air floatation is 30 percent, the lift is designed according to 50 meters, the energy consumption is too high, and the investment cost is too high.
The main technical reason for the above problems is that the conventional pressure dissolved air flotation has too low operating efficiency. The design point of the conventional pressure dissolved air flotation hydraulic load is 7-10 cubic meters per square meter per hour, and the design point of the reflux ratio is 30-50%. Therefore, in order to improve the operation efficiency of the air flotation machine, the working pressure of the existing air flotation machine needs to be increased. After the working pressure is increased, the original parts of the air floating machine are not suitable for the requirements of a new purifying device any more, and corresponding improvement is needed.
The existing air floatation machine comprises an air floatation tank, a coagulation reactor and a bubble generator, wherein the air floatation tank is generally rectangular under the limitation of transportation conditions, a contact chamber of the existing air floatation tank is generally uniformly arranged at one end of the air floatation tank along the wide edge of the air floatation tank, and a clear water chamber and a sludge tank are arranged at the other end of the air floatation tank. The air floatation tank with the structure has the advantages that sewage and dissolved air water flow along the length direction of the air floatation tank in the air floatation tank, so the flow distance is as long as a distance of dozens of meters away, the distribution of the dissolved air water in the air floatation tank is uneven, the dissolved air water content at one end close to the contact chamber is very large, the dissolved air water content at one end far away from the contact chamber is almost zero, and therefore scum far away from the contact chamber is easy to drop into water, and because the flow distance of the water is too long, when an operator scrapes the scum on the surface of the water, the probability that the scum drops is also large, and the purification efficiency of the scum on the water is low. In addition, sewage is at the purification in-process, and some pollution particles that proportion is great can sink to the bottom of the pool under the effect of gravity, and at this in-process, sewage can produce certain turbulent phenomenon at the flow in-process, just so makes the bubble floc and the pollution particle in the sewage receive turbulent impact easily and the breakage to further reduce the purifying effect to sewage. Therefore, it is necessary to improve the existing flotation tank to shorten the flowing distance of the water in the flotation tank.
In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a new water body purifying device with a new structure.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a novel water body purification device with high sewage purification efficiency and low sewage treatment cost.
The novel water body purification device comprises a micro-bubble generator, a coagulation device, a PAC dosing device, a PAM dosing device, a sewage regulating tank, a water distribution assembly and an air floatation tank, wherein the output end of the micro-bubble generator is communicated with a dissolved gas water filling port of the coagulation device through a pipeline, the output end of the PAC dosing device is communicated with a PAC medicament input port of the coagulation device through a pipeline, the output end of the PAM dosing device is communicated with the PAM medicament input port of the coagulation device through a pipeline, the output end of the sewage regulating tank is communicated with a sewage input port of the coagulation device through a pipeline, the water distribution assembly comprises a water inlet main pipe and an output pipe communicated with the water inlet main pipe, a plurality of contact chambers are uniformly arranged on the left side and the right side of an inner cavity of the air floatation tank along the length direction, the output pipe is communicated with the contact chambers, the input end of each releaser is communicated with the output end of the micro-bubble generator, and the output end of each releaser is communicated with the contact chambers through a pipeline;
still be equipped with clear water room and triangle-shaped big resistance clear water collection component in the air supporting pond, the clear water room is located the middle part of air supporting pond inner chamber, clear water room pass through the pipeline with microbubble generator's input intercommunication, triangle-shaped big resistance clear water collection component includes current-limiting plate and baffle, the figure of baffle is two, and the top of two baffles links together, one side setting of current-limiting plate is in the bottom of one of them baffle, and the opposite side setting of current-limiting plate is in the bottom of another baffle to current-limiting plate, two baffles surround and form the clear water and collect the chamber, the clear water collect the chamber with clear water room intercommunication, a plurality of water delivery holes have been seted up on the current-limiting plate to the aperture of water delivery hole is crescent along the direction of keeping away from clear water room, be equipped with folded plate type sloping plate subassembly between baffle and the contact chamber, folded plate type sloping plate subassembly includes a plurality of parallel arrangement's folded plate type swash plate, folded plate type swash plate slope ground sets up in the air supporting pond.
Further, the novel water body purification device comprises a dissolved air tank body and an ejector component, wherein the ejector component comprises a drainage tube arranged on the dissolved air tank body, a mixing tube arranged at the tail end of the drainage tube and a transmission tube arranged at the tail end of the mixing tube, the mixing tube and the transmission tube are respectively arranged in an inner cavity of the dissolved air tank body, a high-pressure air inlet tube communicated with the inner cavity of the drainage tube is arranged on the drainage tube, a spiral mixer enabling fluid to pass through spirally is arranged in the inner cavity of the drainage tube, the spiral mixer comprises at least one spiral blade, a plurality of barriers are arranged on the inner side surface of the mixing tube, and the barriers are cylinders.
Furthermore, the novel water body purification device comprises an input pipe, wherein the sewage input port, the PAC agent input port and the PAM agent input port are arranged on the input pipe, the novel water body purification device also comprises a first dissolved air water mixing pipe, the output end of the input pipe is vertically connected to the outer side surface of the first dissolved air water mixing pipe, the inner cavity of the input pipe is communicated with the inner cavity of the first dissolved air water mixing pipe, and one end of the first dissolved air water mixing pipe is provided with a dissolved air water filling port.
Furthermore, according to the novel water body purification device, a second dissolved air water mixing pipe communicated with the inner cavity of the first dissolved air water mixing pipe is vertically arranged at the other end of the first dissolved air water mixing pipe, and a dissolved air water filling port is arranged at the end part, close to the tail end of the first dissolved air water mixing pipe, of the second dissolved air water mixing pipe.
Furthermore, in the novel water purification device, a third dissolved air water mixing pipe communicated with the second dissolved air water mixing pipe is vertically arranged at the other end of the second dissolved air water mixing pipe, and a dissolved air water filling port is arranged at the end part of the third dissolved air water mixing pipe close to the tail end of the second dissolved air water mixing pipe.
Furthermore, the water distribution assembly of the novel water body purification device further comprises a water distribution three-way pipe, the output end of the water inlet main pipe is communicated with the input end of the water distribution three-way pipe, the two sides of the water distribution three-way pipe are respectively and symmetrically provided with branch assemblies, each branch assembly comprises a branch pipe, the input end of each branch pipe is communicated with the output end of the water distribution three-way pipe, the output end of each branch pipe is arranged in the middle of the connecting pipe and communicated with the connecting pipe, and the input end of the output pipe is arranged on the outer side surface of the connecting pipe and communicated with the connecting pipe.
Furthermore, the novel water body purification device comprises a plurality of strip-shaped connecting plates which are sequentially connected at a certain angle, the joint of the two strip-shaped connecting plates forms a downward sunken wave trough or an upward raised wave crest, and a sludge hopper is arranged below the strip-shaped connecting plates.
Furthermore, the novel water body purification device comprises a press rod, the right end of the press rod penetrates through the side wall of the bent pipe and is connected with the second mounting seat, and the input end of the press rod is connected with the output end of the driving device.
Furthermore, according to the novel water body purification device, the outer side surface of the bent pipe is provided with the protection pipe, one end of the protection pipe is fixedly arranged on the bent pipe, the protection pipe is sleeved on the pressure rod, the outer side surface of the protection pipe is provided with the sliding sleeve, the inner side surface of the sliding sleeve is in sliding fit with the outer side surface of the protection pipe, the sliding sleeve is fixedly connected with the pressure rod, and the sliding sleeve is further connected with the driving device.
Furthermore, the novel water body purification device comprises a PAC dosing device, the PAC dosing device comprises a PAM dosing pool, the PAM dosing device comprises a PAM dosing pool, a submersible sewage pump is arranged in the sewage adjusting pool, the output end of the submersible sewage pump is communicated with the sewage input port of the input pipe through a pipeline, the inner cavity of the PAC dosing pool is communicated with a PAC medicament input port through a metering pump, the inner cavity of the PAM dosing pool is communicated with the PAM medicament input port through a screw pump, a flow meter is arranged on the pipeline connecting the submersible sewage pump and the input pipe, stirring devices are arranged in the PAC dosing pool and the PAM dosing pool and comprise a motor and blades, and the blades are connected with the output shaft of the motor.
By the scheme, the invention at least has the following advantages: according to the novel water body purification device, the contact chamber is arranged on the long edge of the air floatation tank, the sewage and the dissolved air water flow along the width direction of the air floatation tank, and the clear water chamber is arranged in the middle of the air floatation tank, so that the flow distance is greatly shortened compared with that of the original air floatation tank, and the probability of scum falling in the scum scraping process is reduced. Through being connected each contact chamber with the output of releaser for dissolve gas water can export to each contact chamber through the releaser, and react with sewage mixing, because the ground distance that flows shortens widely, consequently dissolve gas water and can distribute in whole air supporting pond uniformly, in addition, the setting of water distribution subassembly makes sewage can export to each contact chamber and carry out mixing reaction with dissolving gas water uniformly through the water distribution subassembly, thereby has improved the purification efficiency to sewage. The arrangement of the folded plate type inclined plate component can realize the secondary surface trapping of pollution particles and the laminar flow of sewage, suspended matters can be gathered by the folded plate type inclined plate component formed by stainless steel or glass fiber reinforced plastic materials, and the folded plate type inclined plate is obliquely arranged to have a certain mud sliding effect. The distance between the folded plate type inclined plates is designed according to the fluid mechanics principle, and the laminar flow effect of water flow in the folded plate type inclined plates can be easily realized. River water pollutants with large specific gravity can be trapped by the surface of the folded plate type inclined plate to complete the removal function. The folded plate type inclined plate component is beneficial to secondary condensation and floating separation of 'entrapped air bubble floc'. The floe can be trapped by the surface of the specially designed folded plate type sloping plate, so that the tiny particles and tiny bubbles which slowly rise and have buoyancy slightly larger than gravity are intercepted and moved to the secondary surface and gradually coagulated into larger floes, and after the buoyancy of the floes is gradually increased, the floes float to the liquid surface to complete solid-liquid separation under the condition of not being hindered by any disturbance and water flow. Part of suspended matters with large specific gravity are precipitated in a bottom sludge hopper to be collected and discharged. The triangular high-resistance clear water collecting assembly is arranged, so that a certain height difference is formed between the liquid level in the clear water chamber and the liquid level in the air flotation tank, a certain pressure difference is formed between sewage in the air flotation tank and clear water in the clear water chamber, the pressure difference can drive and contact the sewage in the chamber and dissolved air water to continuously flow towards the direction of the clear water chamber, and the sewage purification process is completed. In conclusion, the water body purification device disclosed by the invention is high in sewage purification efficiency and low in sewage treatment cost.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a process flow diagram of the novel water purification device of the present invention;
FIG. 2 is a schematic structural view of an air flotation tank;
FIG. 3 is a side view of the flotation tank;
FIG. 4 is a schematic view showing the connection of a coagulation vessel, a wastewater conditioning tank, a PAC dosing device and a PAM dosing device;
FIG. 5 is a schematic view of the construction of a fuser;
fig. 6 is a schematic structural view of a microbubble generator;
FIG. 7 is a schematic structural view of a mixing tube;
FIG. 8 is a schematic view of the structure of the batt;
FIG. 9 is a schematic structural view of a water distribution assembly;
figure 10 is a top view of the water distribution assembly;
figure 11 is a side view of the water distribution assembly;
FIG. 12 is a plan layout view of the water distribution assembly disposed in the air flotation tank;
FIG. 13 is a schematic structural view of a triangular high resistance clean water collection assembly;
FIG. 14 is a partial schematic view of a flap-type ramp assembly;
FIG. 15 is a schematic view of a restrictor plate;
FIG. 16 is a schematic view of the release;
fig. 17 is a partial enlarged view of a portion B in fig. 16;
FIG. 18 is a schematic view showing the flow of sewage and dissolved gas water in the flotation tank.
In the figure, 1: a micro-bubble generator; 2: a coagulation device; 3: a PAC dosing device; 4: PAM dosing device; 5: a sewage adjusting tank; 6: an air flotation tank; 7: a dissolved air water filling port; 8: a PAC agent input port; 9: a PAM agent input port; 10: a sewage input port; 11: a water inlet main pipe; 12: an output pipe; 13: a contacting chamber; 14: a releaser; 15: a clear water chamber; 16: a restrictor plate; 17: a baffle plate; 18: a clear water collection chamber; 19: a water delivery hole; 20: a folded plate type sloping plate; 21: a dissolved air tank body; 22: a drainage tube; 23: a mixing tube; 24: a conveying pipe; 25: a high-pressure air inlet pipe; 26: a screw mixer; 27: a helical blade; 28: a barrier; 29: an input tube; 30: a first dissolved gas water mixing pipe; 31: a second dissolved air water mixing pipe; 32: a third dissolved gas water mixing pipe; 33: a water diversion three-way pipe; 34: a branch pipe; 35: a connecting pipe; 36: a strip-shaped connecting plate; 37: a sludge hopper; 38: bending the pipe; 39: a base plate; 40: a first water passage hole; 41: a first mounting seat; 42: a second water through hole; 43: a spring; 44: a pressure lever; 45: a second mounting seat; 46: protecting the pipe; 47: a sliding sleeve; 48: PAC dosing pool; 49: a PAM dosing pool; 50: a submersible sewage pump; 51: a metering pump; 52: a screw pump; 53: a motor; 54: a blade.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Referring to fig. 1 to 18, a novel water body purification device according to a preferred embodiment of the present invention comprises a micro bubble generator 1, a coagulation device 2, a PAC dosing device 3, a PAM dosing device 4, a sewage regulating tank 5, a water distribution assembly, and an air flotation tank 6, wherein an output end of the micro bubble generator is communicated with a dissolved air water filling port 7 of the coagulation device through a pipeline, an output end of the PAC dosing device is communicated with a PAC agent inlet port 8 of the coagulation device through a pipeline, an output end of the PAM dosing device is communicated with a PAM agent inlet port 9 of the coagulation device through a pipeline, an output end of the sewage regulating tank is communicated with a sewage inlet port 10 of the coagulation device through a pipeline, the water distribution assembly comprises a water inlet manifold 11 and an output pipe 12 communicated with the water inlet manifold, a plurality of contact chambers 13 are uniformly arranged on left and right sides of an inner cavity of the air flotation tank along a length direction, the output pipe is communicated with the contact chambers, the novel water body purification device further comprises a plurality of release devices 14 corresponding to the contact chambers, input ends of the release devices are communicated with output ends of the micro bubble generator, and output ends of the release devices are communicated with the contact chambers through pipelines;
still be equipped with clear water room 15 and triangle-shaped big resistance clear water collection component in the air supporting pond, the clear water room is located the middle part of air supporting pond inner chamber, the clear water room passes through the pipeline and communicates with microbubble generator's input, triangle-shaped big resistance clear water collection component includes current-limiting plate 16 and baffle 17, the figure of baffle is two, the top of two baffles links together, one side of current-limiting plate sets up the bottom at one of them baffle, the opposite side setting of current-limiting plate is in the bottom of another baffle, and current-limiting plate, two baffles surround and form clear water and collect chamber 18, clear water collection chamber and clear water room intercommunication, a plurality of water delivery holes 19 have been seted up on the current-limiting plate, and the aperture of water delivery hole is along the direction grow gradually of keeping away from the clear water room, be equipped with folded plate type swash plate subassembly between baffle and the contact chamber, folded plate type swash plate subassembly includes a plurality of parallel arrangement's folded plate type swash plate 20, folded plate type swash plate sets up aslope in the air supporting pond.
During specific work, the dissolved air water of microbubble generator output end is inputed to the coagulation ware in through the pipeline to with sewage and PAM medicament (flocculating agent), PAC medicament (coagulant) mixing reaction in inputing the coagulation ware, make the bubble in the dissolved air water can combine the inside of entering the floc and form the floc, simultaneously, the dissolved air water of microbubble generator's output passes through pipeline and releaser and exports to the contact chamber in the flotation cell, sewage exports to the contact chamber through the coagulation ware and further mixes with the dissolved air water in the contact chamber after that, generate bigger floc, the floc floats up and forms the dross at the liquid level under the effect of buoyancy, the dross is exported to the dross tank under the effect of scum machine, thereby realize the purification to sewage. The sewage and the dissolved air water which are input into the contact chamber flow upwards and then flow downwards along the inclined plate component under the action of pressure difference, wherein the pollution particles with larger specific gravity sink to the bottom of the air floatation tank along the folded plate type inclined plate, the sewage and the dissolved air water are output to the clear water collecting cavity through the water conveying holes in the flow limiting plate after reaching the bottom of the air floatation tank, the aperture of the water conveying holes is arranged, so that a certain height difference is always kept between the liquid levels of the clear water chamber and the air floatation tank, a certain pressure difference is formed, the clear water which enters the clear water collecting cavity is output to the clear water chamber under the action of the pressure difference, the evolution effect on the sewage is finished, and part of the clear water in the clear water chamber flows back to the micro bubble generator to generate the dissolved air water.
Preferably, the novel water body purification device of the invention comprises a dissolved air tank 21 and an ejector component, wherein the ejector component comprises a drainage tube 22 arranged on the dissolved air tank, a mixing tube 23 arranged at the tail end of the drainage tube and a transmission tube 24 arranged at the tail end of the mixing tube, the mixing tube and the transmission tube are respectively arranged in the inner cavity of the dissolved air tank, the drainage tube is provided with a high-pressure air inlet tube 25 communicated with the inner cavity of the drainage tube, the inner cavity of the drainage tube is provided with a spiral mixer 26 enabling fluid to pass in a spiral shape, the spiral mixer comprises at least one spiral blade 27, the inner side surface of the mixing tube is provided with a plurality of barriers 28, and the barriers are cylinders.
The bubble generator is a device for producing micro bubbles, which is used as an output device of dissolved air water, the existing bubble generator comprises a Venturi jet dissolved air system, the working pressure of the Venturi jet dissolved air system is between 0.3 and 0.45 MPa, the Venturi jet dissolved air system belongs to a low-pressure dissolved air system, and the dissolved air efficiency of the existing Venturi jet dissolved air system under a low-pressure state is up to 99 percent. In order to further increase the amount of dissolved air in a unit water body, the pressure of the dissolved air water needs to be increased, so that the dissolved air amount can be increased, and the existing venturi jet air dissolving system cannot efficiently atomize the air and the liquid after the working pressure of the return water is increased to 0.5 to 0.8 MPa, so that the air dissolving efficiency is greatly reduced.
High-pressure microbubble generator is connected high-pressure intake pipe and drainage tube for the high-pressure gas that has 0.5 to 0.8 can directly get into the drainage tube and mix with water, and the setting of helical mixing ware makes the gas that dissolves that thoughtlessly has gas can be the heliciform and pass through the helical mixing ware, thereby makes the high-pressure backward flow rivers of original along rectilinear motion, becomes high-speed helical motion, has greatly increased the contact liquid level between gas and the rivers. The larger the contact liquid level between the gas and the water is, the higher the gas is merged into the water, namely, the shorter the gas is merged into the water body, and the larger the amount of the gas is merged into the water body. In addition, the barrier arranged in the mixing pipe strengthens the atomization function of the high-pressure air and the pressure water in the mixing pipe. The gas-liquid atomization phenomenon generated in the special fluid structure can instantly blend the supersaturated air into the water body, thereby further improving the container efficiency of the high-pressure micro-bubble generator.
Preferably, the novel water body purification device comprises a coagulation device and a first dissolved air water mixing pipe 30, wherein the coagulation device comprises an input pipe 29, a sewage input port, a PAC agent input port and a PAM agent input port are arranged on the input pipe, the output end of the input pipe is vertically connected to the outer side surface of the first dissolved air water mixing pipe, the inner cavity of the input pipe is communicated with the inner cavity of the first dissolved air water mixing pipe, and one end of the first dissolved air water mixing pipe is provided with a dissolved air water filling port.
The coagulation reactor is a device for mixing PAC (PAC) medicament, PAM (flocculating agent) medicament and gas-dissolved water into sewage to be purified, the sewage is mixed with the coagulant and the flocculating agent in the coagulation device to form a bubble floc, the bubble floc has small specific gravity and is easy to float upwards, the filling direction of the gas-dissolved water in the existing coagulation device is vertical to a main reaction pipeline, the impact distance of the gas-dissolved water is only one pipe diameter, the impact force is large, the floc in the sewage is very easy to disperse, the medicament needs to be added again after the floc is crushed into small particles, otherwise, the floc can be aggregated into larger floc particles again only for a long time. Therefore, the filling mode of the dissolved air water can not generate 'bubble floc', thereby reducing the sewage purification effect of the subsequent device. The releaser is a part of a device for releasing the pressure of the dissolved gas water so as to adapt the dissolved gas water to subsequent treatment equipment,
preferably, in the novel water purification apparatus of the present invention, the other end of the first dissolved air water mixing pipe is vertically provided with a second dissolved air water mixing pipe 31 communicating with the inner cavity of the first dissolved air water mixing pipe, and an end portion of the second dissolved air water mixing pipe near the end of the first dissolved air water mixing pipe is provided with a dissolved air water filling port.
Preferably, in the novel water purification apparatus of the present invention, a third dissolved air water mixing pipe 32 communicating with the second dissolved air water mixing pipe is vertically provided at the other end of the second dissolved air water mixing pipe, and a dissolved air water filling port is provided at an end portion of the third dissolved air water mixing pipe near the end of the second dissolved air water mixing pipe.
Preferably, the water distribution assembly of the novel water body purification device further comprises a water distribution three-way pipe 33, the output end of the water inlet main pipe is communicated with the input end of the water distribution three-way pipe, the two sides of the water distribution three-way pipe are respectively and symmetrically provided with branch assemblies, each branch assembly comprises a branch pipe 34, the input end of each branch pipe is communicated with the output end of the water distribution three-way pipe, the output end of each branch pipe is arranged in the middle of the connecting pipe 35 and communicated with the connecting pipe, and the input end of the output pipe is arranged on the outer side surface of the connecting pipe and communicated with the connecting pipe.
Preferably, the novel water body purification device comprises a folded plate type inclined plate and a plurality of strip-shaped connecting plates 36 which are sequentially connected at a certain angle, wherein a downward sunken wave trough or an upward raised wave crest is formed at the joint of the two strip-shaped connecting plates, and a sludge hopper 37 is arranged below the folded plate type inclined plate assembly.
Preferably, the novel water body purification device comprises a bent pipe 38, a bottom plate 39 is arranged in an inner cavity of the bent pipe, the bottom plate is arranged on the inner side surface of the bent pipe, a first water through hole 40 which extends along the thickness direction of the bottom plate and penetrates through the bottom plate is formed in the middle of the bottom plate, a first mounting seat 41 is arranged on the left side surface of the bottom plate, a second water through hole 42 which extends along the thickness direction of the first mounting seat and penetrates through the first mounting seat is formed in the middle of the first mounting seat, the second water through hole is communicated with the first water through hole, a spring 43 is arranged on the left side of the first mounting seat, one end of the spring is arranged on the first mounting seat, the other end of the spring is connected with the second mounting seat, the left end of the second water through hole is located in a central shaft hole of the spring, the right end of the pressure rod 44 penetrates through the side wall of the bent pipe and is connected with a second mounting seat 45, and the input end of the pressure rod is connected with the output end of the driving device.
Preferably, the novel water body purification device of the invention is characterized in that the outer side surface of the elbow is provided with a protection pipe 46, one end of the protection pipe is fixedly arranged on the elbow, the protection pipe is sleeved on the pressure rod, the outer side surface of the protection pipe is provided with a sliding sleeve 47, the inner side surface of the sliding sleeve is in sliding fit with the outer side surface of the protection pipe, the sliding sleeve is fixedly connected with the pressure rod, and the sliding sleeve is also connected with the driving device.
The spring is arranged, so that the pressure of the high-pressure gas-dissolving water can be eliminated through the gap of the spring. In addition, when the gap of spring was blockked up by small foreign matter, the inner chamber pressure of spring risees, small foreign matter can be by the rush out gap under the effect of pressure, thereby realize the automatic clearance to the foreign matter, when the foreign matter that mix with between the spring gap can't be washed away because the volume is too big, the spring can extend under drive arrangement and the depression bar's of being connected with drive arrangement effect, thereby make the plug can be clear away out the gap of spring under the effect of dissolved air water, make it be difficult for blockking up, thereby its energy release effect to dissolved air water has further been improved.
Preferably, the novel water body purification device comprises a PAC dosing device 48, the PAM dosing device comprises a PAM dosing tank 49, a submersible sewage pump 50 is arranged in a sewage adjusting tank, the output end of the submersible sewage pump is communicated with a sewage input port of an input pipe through a pipeline, the inner cavity of the PAC dosing tank is communicated with a PAC agent input port through a metering pump 51, the inner cavity of the PAM dosing tank is communicated with the PAM agent input port through a screw pump 52, a flow meter is arranged on a pipeline connecting the submersible sewage pump and the input pipe, stirring devices are arranged in the PAC dosing tank and the PAM dosing tank and comprise a motor 53 and blades 54, and the blades are connected with an output shaft of the motor.
The core technical point of the water body purification device comprises that the contact chambers are arranged on two long sides of the tank body, the total length of the two long sides which are added together exceeds 30 meters, and how to evenly distribute sewage and dissolved gas water on the length is a very important technical difficulty. The sewage which is evenly distributed with the flocculated sewage and the dissolved air water which is distributed with the bubbles with the grain diameter of 1-5um are in chemical contact in the contact chamber, and the micro bubbles are stained with the flocculating constituent in the sewage to form the 'foam flocculating constituent' with the specific gravity less than 1. The foam flocs move upwards to the liquid level along with the water flow, and rise to the liquid level by the buoyancy of the foam flocs to form scum, so that the solid-liquid separation process of air floatation is completed. The clean water flow separated out of the flocs flows to the bottom of the pool in a turn-back mode from the liquid level, the clean water flow flows into the folded plate type inclined plate assembly in the middle, and in the system, the water flow is changed into a laminar flow system in hydraulics from turbulent flow. The water flow is very stable, and some non-floating micro flocs in the sewage can finish the floating process again in a calm environment. Even if the floating is not floated, the solid-liquid separation can be finished by falling on the folded plate type inclined plate. Clear water separated out of flocs flows above a sludge hopper at the bottom of the tank body, returns back again to pass through the triangular high-resistance clear water collecting assembly arranged upwards when reaching the middle part of the tank body, generates a water level difference of about 200 mm through the assembly, and can ensure that clear water collected by the triangular high-resistance clear water collecting assembly moves for more than 10 meters to reach a clear water chamber at the middle part of the tank body and is discharged to enter the next treatment unit.
The design point of the novel water body purification device is controlled at 30-40 cubic meters per square meter per hour, so that the operation efficiency is improved by three to five times. The reflux ratio of the novel water body purification device is 8-10% of the design point, and the operation energy consumption is reduced by three times. According to the design of the design point, the single treatment capacity of the water body purification device can reach 20000 cubic meters per day. The transportation size of a single water body purification device can meet the normal transportation requirement on the highway.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a novel water purifies device which characterized in that: the novel water purification device comprises a micro-bubble generator, a coagulation device, a PAC (polyaluminium chloride) dosing device, a PAM (polyacrylamide) dosing device, a sewage regulating tank, a water distribution assembly and an air floatation tank, wherein the output end of the micro-bubble generator is communicated with a dissolved gas water filling port of the coagulation device through a pipeline, the output end of the PAC dosing device is communicated with a PAC (polyaluminium chloride) medicament input port of the coagulation device through a pipeline, the output end of the PAM dosing device is communicated with a PAM medicament input port of the coagulation device through a pipeline, the output end of the sewage regulating tank is communicated with a sewage input port of the coagulation device through a pipeline, the water distribution assembly comprises a water inlet main and an output pipe communicated with the water inlet main, a plurality of contact chambers are uniformly arranged on the left side and the right side of an inner cavity of the air floatation tank along the length direction, the output pipe is communicated with the contact chambers, the input end of the releaser is communicated with the output end of the micro-bubble generator, and the output end of the releaser is communicated with the contact chambers through a pipeline;
the air flotation tank is characterized in that a clear water chamber and a triangular high-resistance clear water collecting assembly are further arranged in the air flotation tank, the clear water chamber is located in the middle of an inner cavity of the air flotation tank and is communicated with the input end of the micro bubble generator through a pipeline, the triangular high-resistance clear water collecting assembly comprises a flow limiting plate and two baffles, the top ends of the two baffles are connected together, one side of the flow limiting plate is arranged at the bottom end of one baffle, the other side of the flow limiting plate is arranged at the bottom end of the other baffle, the flow limiting plate and the two baffles surround to form a clear water collecting cavity, the clear water collecting cavity is communicated with the clear water chamber, a plurality of water conveying holes are formed in the flow limiting plate, the hole diameter of each water conveying hole is gradually increased along the direction far away from the clear water chamber, a folded plate type inclined plate assembly is arranged between the baffles and the contact chamber and comprises a plurality of folded plate type inclined plates which are arranged in parallel, and the folded plate type inclined plates are obliquely arranged in the air flotation tank;
the folded plate type inclined plate comprises a plurality of strip-shaped connecting plates which are sequentially connected at a certain angle, a downward sunken wave trough or an upward raised wave crest is formed at the joint of the two strip-shaped connecting plates, and a sludge hopper is arranged below the folded plate type inclined plate assembly;
the novel water body purification device comprises a releaser and a novel water body purification device, wherein the releaser comprises a bent pipe, a bottom plate is arranged in an inner cavity of the bent pipe, the bottom plate is arranged on the inner side surface of the bent pipe, a first water through hole which extends in the thickness direction of the bottom plate and penetrates through the bottom plate is formed in the middle of the bottom plate, a first mounting seat is arranged on the left side surface of the bottom plate, a second water through hole which extends in the thickness direction of the first mounting seat and penetrates through the first mounting seat is formed in the middle of the first mounting seat, the second water through hole is communicated with the first water through hole, a spring is arranged on the left side of the first mounting seat, one end of the spring is arranged on the first mounting seat, the other end of the spring is connected with the second mounting seat, the left end of the second water through hole is positioned in a central shaft hole of the spring, the right end of the pressure rod penetrates through the side wall of the bent pipe and is connected with the second mounting seat, and the input end of the pressure rod is connected with the output end of a driving device;
the outer side face of the bent pipe is provided with a protection pipe, one end of the protection pipe is fixedly arranged on the bent pipe, the protection pipe is sleeved on the pressure rod, the outer side face of the protection pipe is provided with a sliding sleeve, the inner side face of the sliding sleeve is in sliding fit with the outer side face of the protection pipe, the sliding sleeve is fixedly connected with the pressure rod, and the sliding sleeve is further connected with a driving device.
2. The novel water body purification device according to claim 1, wherein: microbubble generator is including dissolving the gas jar body and ejector subassembly, the ejector subassembly is including setting up drainage tube on dissolving the gas jar body, setting up the hybrid tube at the drainage tube tail end and setting up the transmission pipe at the hybrid tube tail end, hybrid tube, transmission pipe set up respectively in the inner chamber of dissolving the gas jar body, be equipped with on the drainage tube with the communicating high-pressure intake pipe of drainage tube inner chamber, be equipped with the spiral mixer that makes fluid can be the heliciform and pass through in the drainage tube inner chamber, the spiral mixer includes an at least slice helical blade, be equipped with a plurality of barriers on the medial surface of hybrid tube, the barrier is the cylinder.
3. The novel water body purification device according to claim 1, wherein: the mixing and coagulating device comprises an input pipe, wherein the sewage input port, the PAC medicament input port and the PAM medicament input port are arranged on the input pipe, the mixing and coagulating device further comprises a first dissolved air water mixing pipe, the output end of the input pipe is vertically connected to the outer side surface of the first dissolved air water mixing pipe, the inner cavity of the input pipe is communicated with the inner cavity of the first dissolved air water mixing pipe, and one end of the first dissolved air water mixing pipe is provided with a dissolved air water filling port.
4. The novel water body purification device according to claim 3, wherein: the other end of the first gas-dissolved water mixing pipe is vertically provided with a second gas-dissolved water mixing pipe communicated with the inner cavity of the first gas-dissolved water mixing pipe, and the end part of the second gas-dissolved water mixing pipe close to the tail end of the first gas-dissolved water mixing pipe is provided with a gas-dissolved water filling opening.
5. The novel water body purification device according to claim 4, wherein: the other end of the second gas-dissolved water mixing pipe is vertically provided with a third gas-dissolved water mixing pipe communicated with the second gas-dissolved water mixing pipe, and the end part of the third gas-dissolved water mixing pipe close to the tail end of the second gas-dissolved water mixing pipe is provided with a gas-dissolved water filling opening.
6. The novel water body purification device of claim 1, wherein: the water distribution assembly further comprises a water distribution three-way pipe, the output end of the water inlet main pipe is communicated with the input end of the water distribution three-way pipe, branch assemblies are symmetrically arranged on two sides of the water distribution three-way pipe respectively and comprise branch pipes, the input ends of the branch pipes are communicated with the output ends of the water distribution three-way pipe, the output ends of the branch pipes are arranged in the middle of the connecting pipe and are communicated with the connecting pipe, and the input ends of the output pipes are arranged on the outer side face of the connecting pipe and are communicated with the connecting pipe.
7. The novel water body purification device according to claim 4, wherein: PAC charge device includes the PAC pond of adding medicine, PAM charge device includes the PAM pond of adding medicine, be equipped with stealthily dirty pump in the sewage adjusting tank, stealthily dirty pump's output passes through the sewage input port intercommunication of pipeline and input tube, the inner chamber in PAC pond of adding medicine passes through measuring pump and PAC medicament input port intercommunication, the inner chamber in PAM pond of adding medicine passes through screw pump and PAM medicament input port intercommunication, is equipped with the flowmeter on the pipeline of connecting stealthily dirty pump and input tube, PAC adds medicine pond and PAM and adds the pond in and be equipped with agitating unit, agitating unit includes motor and paddle, the paddle is with the output shaft of motor.
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| CN109956534B (en) * | 2019-04-03 | 2022-03-11 | 农业农村部环境保护科研监测所 | Equipment for purifying sewage by gas injection and chemical spraying and use method thereof |
| CN112479298A (en) * | 2020-11-10 | 2021-03-12 | 无锡海拓环保装备科技有限公司 | Rectification air flotation machine |
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