CN111003829A - Pressurized dissolved air floatation equipment for industrial sewage treatment and use method thereof - Google Patents
Pressurized dissolved air floatation equipment for industrial sewage treatment and use method thereof Download PDFInfo
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- CN111003829A CN111003829A CN201911360772.5A CN201911360772A CN111003829A CN 111003829 A CN111003829 A CN 111003829A CN 201911360772 A CN201911360772 A CN 201911360772A CN 111003829 A CN111003829 A CN 111003829A
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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Abstract
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to pressurized dissolved air flotation equipment for industrial sewage treatment. According to the invention, a small amount of tap water is used as a water source of the pressurized dissolved air floatation device in advance, after the sewage is subjected to air floatation treatment, the sewage subjected to air floatation treatment is used as a water source, and the water source is purified and then used, so that the effect of saving water resources is achieved, the situation that a large amount of clean water is consumed in the sewage treatment process is avoided, meanwhile, the blockage of the releaser can be avoided, the working effect of the releaser is ensured, and the normal and orderly operation of the sewage is facilitated.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to pressurized dissolved air floatation equipment for industrial sewage treatment and a using method thereof.
Background
The pressurized dissolved air floatation is a method widely used for solid-liquid separation in the treatment of industrial wastewater and municipal sewage, and can remove suspended matters, oils, algae, various metal ion hydroxyl complexes, sulfides and the like in water so as to reduce the chemical oxygen demand and biochemical oxygen demand in the wastewater and protect the natural environment. The working principle of the pressurized dissolved air floatation sewage treatment device is as follows: solid suspended matters formed in the process of treating industrial wastewater and domestic sewage are reduced according to the specific gravity under the adhesion action of a large amount of dense micro bubbles formed in a gas dissolving system, the suspended matters float upwards to form floating slag to be discharged, and clear water is discharged from the lower part.
The prior pressurized dissolved air floatation equipment mainly comprises a stirring assembly, a dissolved air tank, an air compressor, a water pump, a releaser, a scum cleaning device and the like; the effect of the pressurized dissolved air floatation sewage treatment device for treating the waste water mainly depends on a dissolved air system consisting of a dissolved air tank and a releaser, and the water purification effect of the air floatation method can obtain good air floatation effect only under the condition of obtaining a large amount of fine bubbles with small diameter, large density and good uniformity.
At present, the structural functions of the dissolved air tank and the releaser have good working effects, but the use method and the structural design of the whole pressurized dissolved air floatation device have the following defects:
1. because the pressurized dissolved air flotation equipment needs to use a large amount of water resources when working, in order to avoid the waste of water resources, the water resources in the prior pressurized dissolved air flotation equipment are taken out of sewage, but raw water added with coagulant is directly taken and enters the dissolved air tank together with compressed air introduced by a pressure pipeline, so that the air is dissolved in water, the dissolved air water is led out from the bottom of the tank and enters the air flotation tank after being decompressed by a releaser, the flow has the advantage of large dissolved air quantity, but the power consumption is large, flocculating constituents are easy to be broken in the pressurizing and dissolving air processes, suspended particles in water are easy to deposit on the filler of the dissolved air tank and block the releaser, the normal use of the dissolved air tank and the releaser is influenced, and the use value of the pressurized dissolved air flotation equipment is reduced;
2. the structural design of the pressurized dissolved air floatation device is dispersed, so that the sewage treatment structure is huge, the sewage treatment structure is inconvenient to manage and check, and the cleaning structural design of scum generated after sewage treatment is unreasonable, so that the scum cleaning effect is poor.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a pressurized dissolved air floatation device for industrial sewage treatment, which solves the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an industrial sewage treatment is with pressurization dissolved air flotation equipment, includes air supporting box, dissolved gas jar, water pump and releaser, dissolved gas jar and water pump are all fixed in the front of air supporting box, the releaser sets up the inside at air supporting box, the inside fixed mounting who dissolves the gas jar has the division board, the inside of dissolved gas jar just is located division board top fixed mounting and has riser and baffle, the riser is kept away from and is formed with the preliminary treatment chamber between the inner wall of baffle one side and air supporting box, be formed with the air supporting chamber between the one side that riser and baffle are relative, be formed with the clear water chamber between the inner wall of air supporting box and the one side that the riser was kept away from to the baffle, the front fixed mounting of air supporting box has the wet return that is linked together with the clear water chamber, be provided with the solenoid valve on the wet return, the one end intercommunication of wet return has the processing subassembly that is used for purifying the clear water, the processing, the inlet and outlet of the water pump are respectively communicated with a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is communicated with the inside of the processing assembly, one end of the water outlet pipe is communicated with the dissolved air tank, the top of the dissolved air tank is fixedly provided with an air inlet pipe communicated with the inside of the dissolved air tank, one end of the dissolved air tank is communicated with a water vapor conveying pipe, one end of the water vapor conveying pipe is communicated with a flow dividing pipe, two connecting pipes communicated with the inside of the flow dividing pipe are fixedly arranged on the flow dividing pipe, two releasing pipes are fixedly arranged at the top of the dividing plate and positioned in the air flotation cavity, the plurality of releasing devices are divided into two groups and fixed on the two releasing pipes, one ends of the two connecting pipes are respectively communicated with the corresponding releasing pipes, one side of the air flotation box is fixedly provided with a scum collecting box, one, and a deslagging mechanism which pushes the scum from the clear water cavity into the scum collecting box is arranged on the air flotation box.
As a preferable technical scheme of the invention, the treatment component comprises a purification box, the purification box is fixed on the front surface of the air flotation box, the water return pipe is fixed on one side of the purification box and communicated with the inside of the purification box, the water inlet pipe is fixed on the other side of the purification box and communicated with the inside of the purification box, an access board is detachably fixed at the bottom of the purification box, and the purification component is fixedly installed inside the purification box.
As a preferred technical scheme of the invention, the purification component sequentially comprises a filter screen, an activated carbon plate and a ceramic microporous plate from left to right.
As a preferred technical scheme of the invention, the top of the purification box is fixedly provided with a water adding pipe communicated with the interior of the purification box.
As a preferred technical scheme of the invention, a heating cavity is formed between the bottom of the partition plate and the inner wall of the air flotation tank, and a hot air inlet pipe and a hot air outlet pipe communicated with the interior of the heating cavity are fixedly mounted on two sides of the air flotation tank respectively.
As a preferred technical scheme of the invention, one side of the air flotation tank is fixedly provided with a sewage inlet pipe communicated with the inner part of the pretreatment cavity, and the other side of the air flotation tank is fixedly provided with a clear water outlet pipe communicated with the clear water cavity.
As a preferable technical scheme of the invention, the deslagging mechanism comprises a speed reducing motor and two transmission rollers, the speed reducing motor is fixed on the back surface of the air flotation tank, the two transmission rollers are respectively arranged in the air flotation cavity and the clear water cavity, two ends of a roller shaft of the two transmission rollers penetrate through the air flotation tank and are fixed on the surface of the air flotation tank through a bearing seat, a transmission assembly is arranged between an output shaft of the speed reducing motor and one end of one of the roller shafts of the transmission rollers and is in transmission connection with the one end of the one of the roller shafts of the transmission rollers, a transmission belt is arranged between the two transmission rollers and is in transmission connection with the one of the roller shafts of the transmission rollers through the transmission belt, and a.
In a preferred embodiment of the present invention, an inclined plate is fixedly mounted on a side of the vertical plate close to the guide plate, and the inclined plate is inclined upward in a direction close to the guide plate.
A use method of a pressurized dissolved air floatation device for industrial sewage treatment comprises the following steps:
firstly, sewage enters the interior of a pretreatment cavity through a sewage inlet pipe, a coagulant is added into the interior of the pretreatment cavity at the moment, the sewage in the interior of the pretreatment cavity is stirred, and the pretreated sewage enters the interior of an air flotation cavity through a gap between a vertical plate and a partition plate;
secondly, a certain amount of tap water is added into the interior of the purification box through a water adding pipe, the tap water in the purification box is pumped out through a water inlet pipe when a water pump works, the tap water is conveyed into the interior of the dissolved air tank through a water outlet pipe, at the moment, compressed air is added into the dissolved air tank through an air inlet pipe by an air compressor, and air is dissolved in water to form a solution with supersaturated air;
thirdly, the air supersaturated solution enters the inside of the shunt pipe through the water vapor conveying pipe and then respectively enters the two release pipes through the two connecting pipes, then the air supersaturated solution is released through the releaser, the releaser decompresses the air supersaturated solution to form micro bubbles, the micro bubbles are adhered to suspended particles in water to form a bubble-particle complex body, the whole body of the bubble-particle complex body is smaller than the water, then the suspended particles float on the water surface along with the rising of the bubbles, sewage is purified to form clear water, the clear water enters the clear water cavity through the guide plate, meanwhile, the hot gas enters the heating cavity through the hot gas inlet pipe, the hot gas then passes through the hot gas outlet pipe to come out of the heating cavity, and the hot gas circulates in the heating cavity;
fourthly, opening an electromagnetic valve on the water return pipe, enabling a part of clear water to enter the interior of the purifying box for storage, enabling the clear water entering the interior of the purifying box to be purified by a purifying component and then collected into the interior of the purifying box, and closing the electromagnetic valve on the water return pipe after a period of time;
(V) scum in the sewage treatment process is collected on the water surface, the speed reducing motor drives the roll shaft of one of the transmission rollers to rotate through the transmission assembly, so that the transmission roller rotates, the transmission belt rotates, the deslagging plates move along with the transmission belt, the deslagging plates push the scum to move, and the scum is pushed into the scum collecting box through the scum outlet, so that scum collecting work is completed;
and (VI) discharging the clean water from the interior of the air flotation tank through a clean water outlet pipe.
(III) advantageous effects
Compared with the prior art, the invention provides the pressurized dissolved air flotation equipment for industrial sewage treatment and the use method thereof, and the pressurized dissolved air flotation equipment has the following beneficial effects:
1. this industrial sewage treatment is with pressurization dissolved air flotation equipment and application method thereof adopts a small amount of running water as the water source of pressurization dissolved air flotation equipment in advance, after carrying out the air flotation to sewage, utilize the sewage after the air flotation treatment as the water resource, and use after purifying the water resource, consequently, the effect of water economy resource has been played, avoid still need consume a large amount of clean water in carrying out the processing procedure to sewage, can avoid the releaser to block up simultaneously, the working effect of releaser has been guaranteed, be favorable to sewage work normally to go on in order.
2. The pressurized dissolved air flotation equipment for industrial sewage treatment and the use method thereof have the advantages that the equipment is compact in structure and convenient to maintain, most structures are fixed with the air flotation tank, and the equipment is convenient to overhaul and check.
3. The pressurized dissolved air floatation equipment for industrial sewage treatment and the use method thereof have good working effect of the deslagging mechanism, and can clear the scum floating on the water surface out of the interior of the air floatation tank in time and clear the scum into the scum collecting tank.
Drawings
FIG. 1 is a perspective elevation view of the overall construction of the present invention;
FIG. 2 is a perspective rear view of the overall construction of the present invention;
FIG. 3 is a rear view of the overall internal structure of the present invention;
FIG. 4 is an elevational view of the overall construction of the present invention;
FIG. 5 is a schematic view of the purification assembly of the present invention.
In the figure: 1. an air flotation tank; 2. a dissolved air tank; 3. a water pump; 4. a releaser; 5. a partition plate; 6. a vertical plate; 7. a guide plate; 8. a pretreatment chamber; 9. an air flotation cavity; 10. a clear water cavity; 11. a water return pipe; 12. a processing component; 121. a purification box; 122. an access panel; 123. a purification assembly; 124. a water feeding pipe; 13. a water inlet pipe; 14. a water outlet pipe; 15. an air inlet pipe; 16. a water vapor conveying pipe; 17. a shunt tube; 18. a connecting pipe; 19. a release tube; 20. a heating cavity; 21. hot gas enters the pipe; 22. a hot gas outlet pipe; 23. a sewage inlet pipe; 24. a clear water outlet pipe; 25. a deslagging mechanism; 251. a reduction motor; 252. a driving roller; 253. a transmission assembly; 254. a transmission belt; 255. a slag removal plate; 26. an inclined plate; 27. a scum collecting box; 28. and (4) a scum outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-5, the present invention provides the following technical solutions: a pressurized dissolved air flotation device for industrial sewage treatment comprises an air flotation tank 1, a dissolved air tank 2, a water pump 3 and a releaser 4, wherein the dissolved air tank 2 and the water pump 3 are both fixed on the front side of the air flotation tank 1, the releaser 4 is arranged inside the air flotation tank 1, a partition plate 5 is fixedly arranged inside the dissolved air tank 2, a vertical plate 6 and a guide plate 7 are fixedly arranged inside the dissolved air tank 2 and above the partition plate 5, a pretreatment cavity 8 is formed between one side of the vertical plate 6, far away from the guide plate 7, and the inner wall of the air flotation tank 1, an air flotation cavity 9 is formed between one side of the vertical plate 6, opposite to the guide plate 7, a clear water cavity 10 is formed between one side of the guide plate 7, far away from the vertical plate 6, and the inner wall of the air flotation tank 1, a water return pipe 11 communicated with the clear water cavity 10 is fixedly arranged on the front side of the air flotation tank 1, an electromagnetic valve is arranged on, the treatment component 12 is fixed on the front of the air flotation tank 1, the inlet and outlet of the water pump 3 are respectively communicated with a water inlet pipe 13 and a water outlet pipe 14, one end of the water inlet pipe 13 is communicated with the inside of the treatment component 12, one end of the water outlet pipe 14 is communicated with the dissolved air tank 2, the top of the dissolved air tank 2 is fixedly provided with an air inlet pipe 15 communicated with the inside thereof, one end of the dissolved air tank 2 is communicated with a water vapor conveying pipe 16, one end of the water vapor conveying pipe 16 is communicated with a flow dividing pipe 17, two connecting pipes 18 communicated with the inside thereof are fixedly arranged on the flow dividing pipe 17, two releasing pipes 19 are fixedly arranged at the top of the dividing plate 5 and positioned inside the air flotation cavity 9, a plurality of releasers 4 are divided into two groups and fixed on the two releasing pipes 19, one ends of the two connecting pipes 18 are respectively communicated with the corresponding releasing pipes 19, one side of the air flotation tank 1 is fixedly provided with a, the air flotation tank 1 is provided with a deslagging mechanism 25 which pushes the scum from the clear water chamber 10 into a scum collection box 27.
In the embodiment, the interior of the air flotation tank 1 is divided into a plurality of cavities through the partition plates 5, the vertical plates 6 and the guide plates 7, which is beneficial to the sewage treatment, wherein the structures of an air compressor, a coagulant dispenser and a stirring assembly are not shown in the attached drawings, and the structures which are not shown are common structures of the existing pressurized dissolved air flotation equipment; according to the invention, a small amount of tap water is used as a water source of the pressurized dissolved air floatation device in advance, after the sewage is subjected to air floatation treatment, the sewage subjected to air floatation treatment is used as a water source, and the water source is purified and then used, so that the effect of saving water resources is achieved, the situation that a large amount of clean water is consumed in the sewage treatment process is avoided, meanwhile, the blockage of the releaser 4 can be avoided, the working effect of the releaser 4 is ensured, and the normal and orderly operation of the sewage is facilitated.
Specifically, the treatment component 12 includes a purification box 121, the purification box 121 is fixed on the front surface of the air flotation tank 1, the water return pipe 11 is fixed on one side of the purification box 121 and is communicated with the inside of the purification box, the water inlet pipe 13 is fixed on the other side of the purification box 121 and is communicated with the inside of the purification box, the bottom of the purification box 121 is detachably fixed with an access panel 122, and the purification component 123 is fixedly installed inside the purification box 121.
In this embodiment, the sewage subjected to air floatation treatment enters the inside of the purification box 121, wherein the clear water enters the inside of the purification box 121 by means of water pressure and is directly opened and closed by a control solenoid valve without the aid of auxiliary equipment; wherein access panel 122 can be dismantled, and access panel 122 passes through the bolt fastening to access panel 122 and purifying box 121 fixed position carry out sealing process, can clear up the inside of purifying box 121 through dismantling access panel 122.
Specifically, the purification component 123 is sequentially a filter screen, an activated carbon plate and a ceramic microporous plate from left to right.
In this embodiment, sewage after the air supporting is handled is in proper order through filter screen, activated carbon plate and ceramic micropore board after, can obtain the water resource that the cleanliness factor is high for can avoid the emergence of blocking 4 phenomena of releaser in the pressurization dissolved air supporting equipment.
Specifically, a water feeding pipe 124 communicated with the inside of the purification box 121 is fixedly installed at the top of the purification box.
In this embodiment, can add the running water toward the inside of purifying box 121 through filler pipe 124, if the poor unable condition of using of sewage clearance effect appears, can directly act as the water resource that the pressurization dissolved air flotation equipment was dissolved through the running water, and normal back when sewage treatment recycles the sewage after the air supporting is handled, wherein filler pipe 124's opening part threaded connection has sealed lid.
Specifically, a heating cavity 20 is formed between the bottom of the partition plate 5 and the inner wall of the air flotation tank 1, and a hot air inlet pipe 21 and a hot air outlet pipe 22 communicated with the inside of the heating cavity 20 are fixedly installed on two sides of the air flotation tank 1 respectively.
In this embodiment, through heating sewage, can make the air solubility rise, laminating that bubble and suspended solid can be better improves the separation effect of impurity.
Specifically, a sewage inlet pipe 23 communicated with the interior of the pretreatment cavity 8 is fixedly installed on one side of the air flotation tank 1, and a clear water outlet pipe 24 communicated with the clear water cavity 10 is fixedly installed on the other side of the air flotation tank 1.
In this embodiment, the sewage inlet pipe 23 and the clean water outlet pipe 24 are used for the inlet of sewage and the discharge of clean water.
Specifically, dross removal mechanism 25 includes gear motor 251 and two driving rollers 252, gear motor 251 fixes the back at air supporting box 1, two driving rollers 252 set up the inside at air supporting chamber 9 and clear water chamber 10 respectively, the both ends of two driving roller 252 roller shafts all run through air supporting box 1 and fix the surface at air supporting box 1 through the bearing frame, be provided with drive assembly 253 between the output shaft of gear motor 251 and the one end of one of them driving roller 252 roller shaft and pass through drive assembly 253 transmission connection, be provided with drive belt 254 between two driving rollers 252 and pass through drive belt 254 transmission connection, the fixed surface of drive belt 254 installs a plurality of slagging-off board 255.
In this embodiment, the transmission assembly 253 is a common belt wheel and belt structure, and may also be a gear and chain structure; the invention utilizes the continuous rotating transmission belt 254 to drive the deslagging plates 255 to move, utilizes the deslagging plates 255 to drive the scum to move, and then the scum enters the scum collecting box 27 through the scum outlet 28, compared with the prior servo reciprocating movement and the gear toothed plate reciprocating movement, the structure of the invention can continuously and circularly clean, so that the whole scum cleaning work can be carried out continuously, and the servo reciprocating movement and the gear toothed plate reciprocating movement can only push the scum into the scum collecting box 27 and can be reused after resetting.
Specifically, an inclined plate 26 is fixedly mounted on one side of the vertical plate 6 close to the guide plate 7, and the inclined plate 26 inclines upwards towards the direction close to the guide plate 7.
In this embodiment, the inclined plate 26 is designed to guide and collect the generated scum on the water surface.
A use method of a pressurized dissolved air floatation device for industrial sewage treatment comprises the following steps:
firstly, sewage enters the interior of the pretreatment cavity 8 through the sewage inlet pipe 23, then coagulant is added into the interior of the pretreatment cavity 8 and the sewage in the interior of the pretreatment cavity 8 is stirred, and the pretreated sewage enters the interior of the air flotation cavity 9 through a gap between the vertical plate 6 and the partition plate 5;
secondly, a certain amount of tap water is added into the interior of the purification box 121 through a water adding pipe 124, the water pump 3 pumps out the tap water in the purification box 121 through a water inlet pipe 13 and conveys the tap water into the interior of the dissolved air tank 2 through a water outlet pipe 14, at the moment, the air compressor adds compressed gas into the dissolved air tank 2 through an air inlet pipe 15 to dissolve air into water, and a solution with supersaturated air is formed;
thirdly, the air supersaturated solution enters the inside of the shunt pipe 17 through the water vapor conveying pipe 16, then respectively enters the two release pipes 19 through the two connecting pipes 18, then the air supersaturated solution is released through the releaser 4, the releaser 4 decompresses the air supersaturated solution, then micro bubbles are formed, the micro bubbles are adhered to suspended particles in water to form a bubble-particle complex body which is integrally smaller than the water, then the suspended particles float on the water surface along with the rising of the bubbles, sewage is purified to form clear water, then the clear water enters the clear water cavity 10 through the guide plate 7, meanwhile, hot gas enters the inside of the heating cavity 20 through the hot gas inlet pipe 21, the hot gas exits from the inside of the heating cavity 20 through the hot gas outlet pipe 22, and the hot gas circulates in the inside of the heating cavity 20;
fourthly, the electromagnetic valve on the water return pipe 11 is opened, a part of the clean water enters the interior of the purification box 121 for storage, the clean water entering the interior of the purification box 121 is purified by the purification component 123 and then collected into the interior of the purification box 121, and after a period of time, the electromagnetic valve on the water return pipe 11 is closed;
(V) scum in the sewage treatment process is collected on the water surface, the speed reducing motor 251 drives the roller shaft of one of the driving rollers 252 to rotate through the driving assembly 253, so that the driving roller 252 rotates along with the driving belt 254, the plurality of scum removing plates 255 move along with the driving belt 254, the scum removing plates 255 push the scum to move, and the scum is pushed into the scum collecting box 27 through the scum outlet 28, so that the scum collecting work is completed;
and (VI) discharging the clean water from the interior of the air flotation tank 1 through a clean water outlet pipe 24.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides an industrial sewage treatment dissolves gas air supporting equipment with pressurization, includes air supporting case (1), dissolves gas pitcher (2), water pump (3) and releaser (4), its characterized in that: the air dissolving tank (2) and the water pump (3) are fixed on the front of the air floating tank (1), the releaser (4) is arranged in the air floating tank (1), the internal fixed mounting of the air dissolving tank (2) is provided with a partition plate (5), the internal of the air dissolving tank (2) is fixedly provided with a vertical plate (6) and a guide plate (7) above the partition plate (5), the vertical plate (6) is far away from one side of the guide plate (7) and the inner wall of the air floating tank (1) to form a pretreatment cavity (8), an air floating cavity (9) is formed between the vertical plate (6) and the side opposite to the guide plate (7), a clear water cavity (10) is formed between one side of the guide plate (7) far away from the vertical plate (6) and the inner wall of the air floating tank (1), the front fixed mounting of the air floating tank (1) is provided with a water return pipe (11) communicated with the clear water cavity (10), and the electromagnetic valve is arranged on the return pipe, the one end intercommunication of wet return (11) has processing subassembly (12) that is used for purifying the clear water, processing subassembly (12) are fixed in the front of air supporting box (1), the exit of water pump (3) communicates respectively inlet tube (13) and outlet pipe (14), the one end of inlet tube (13) is linked together with the inside of processing subassembly (12), the one end of outlet pipe (14) is linked together with dissolving gas jar (2), the top fixed mounting who dissolves gas jar (2) has intake pipe (15) rather than inside being linked together, the one end intercommunication that dissolves gas jar (2) has steam conveyer pipe (16), the one end intercommunication of steam conveyer pipe (16) has shunt tubes (17), fixed mounting is gone up in shunt tubes (17) has two connecting pipes (18) rather than inside being linked together, the inside fixed mounting that the top of division board (5) just is located air supporting chamber (9) has two release pipes (19), releaser (4) are a plurality of and divide into two sets ofly to fix on two release pipes (19), two the one end of connecting pipe (18) is linked together with corresponding release pipe (19) respectively, one side fixed mounting of air supporting box (1) has dross collecting box (27), dross export (28) that are linked together the inside and clear water chamber (10) of dross collecting box (27) are seted up to one side of air supporting box (1), be provided with on air supporting box (1) and follow the inside dross removal mechanism (25) of clear water chamber (10) propelling movement dross collecting box (27) with the dross.
2. The pressurized dissolved air flotation device for industrial sewage treatment as claimed in claim 1, wherein: processing component (12) are including purifying box (121), purifying box (121) are fixed in the front of air supporting box (1), wet return (11) are fixed in one side of purifying box (121) and are linked together rather than inside, inlet tube (13) are fixed in the opposite side of purifying box (121) and are linked together rather than inside, the bottom of purifying box (121) can be dismantled and be fixed with maintenance board (122), the inside fixed mounting of purifying box (121) has purification component (123).
3. The pressurized dissolved air flotation device for industrial sewage treatment as claimed in claim 2, wherein: the purification component (123) sequentially comprises a filter screen, an activated carbon plate and a ceramic microporous plate from left to right.
4. The pressurized dissolved air flotation device for industrial sewage treatment as claimed in claim 2, wherein: and a water adding pipe (124) communicated with the inside of the purification box (121) is fixedly arranged at the top of the purification box.
5. The pressurized dissolved air flotation device for industrial sewage treatment as claimed in claim 1, wherein: heating cavity (20) are formed between the bottom of division board (5) and the inner wall of air supporting box (1), the both sides of air supporting box (1) respectively fixed mounting have with heating cavity (20) inside hot gas that is linked together advance pipe (21) and hot gas exit tube (22).
6. The pressurized dissolved air flotation device for industrial sewage treatment as claimed in claim 1, wherein: one side of the air flotation tank (1) is fixedly provided with a sewage inlet pipe (23) communicated with the interior of the pretreatment cavity (8), and the other side of the air flotation tank (1) is fixedly provided with a clear water outlet pipe (24) communicated with the clear water cavity (10).
7. The pressurized dissolved air flotation device for industrial sewage treatment as claimed in claim 1, wherein: slag removal mechanism (25) include gear motor (251) and two driving roller (252), gear motor (251) are fixed at the back of air supporting box (1), two driving roller (252) set up respectively in the inside in air supporting chamber (9) and clear water chamber (10), two the both ends of driving roller (252) roller all run through air supporting box (1) and fix the surface at air supporting box (1) through the bearing frame, be provided with drive assembly (253) and pass through drive assembly (253) transmission connection between the output shaft of gear motor (251) and the one end of one of them driving roller (252) roller, two be provided with drive belt (254) between driving roller (252) and connect through drive belt (254) transmission, the fixed surface of drive belt (254) installs a plurality of and removes slag plate (255).
8. The pressurized dissolved air flotation device for industrial sewage treatment as claimed in claim 1, wherein: and an inclined plate (26) is fixedly mounted on one side, close to the guide plate (7), of the vertical plate (6), and the inclined plate (26) inclines upwards in the direction close to the guide plate (7).
9. The use method of the pressurized dissolved air flotation device for industrial sewage treatment according to any one of claims 1 to 8, characterized by comprising the following steps: the method comprises the following steps:
firstly, sewage enters the interior of a pretreatment cavity (8) through a sewage inlet pipe (23), then coagulant is added into the interior of the pretreatment cavity (8) and the sewage in the interior of the pretreatment cavity (8) is stirred, and the pretreated sewage enters the interior of an air flotation cavity (9) through a gap between a vertical plate (6) and a partition plate (5);
(II) a certain amount of tap water is added into the interior of the purification box (121) through a water adding pipe (124), the tap water in the purification box (121) is pumped out through a water inlet pipe (13) when the water pump (3) works, the tap water is conveyed into the interior of the dissolved air tank (2) through a water outlet pipe (14), at the moment, compressed air is added into the dissolved air tank (2) through an air inlet pipe (15) by an air compressor, and air is dissolved in water to form a solution with supersaturated air;
thirdly, the solution with supersaturated air enters the interior of the shunt pipe (17) through the water vapor delivery pipe (16), then respectively enters two releasing pipes (19) through two connecting pipes (18), then the solution supersaturated with air is released through a releaser (4), the releaser (4) decompresses the solution supersaturated with air, then forming micro-bubbles which are adhered with suspended particles in water to form a 'bubble-particle' complex body which is integrally smaller than the water, then the suspended particles rise along with the bubbles and float on the water surface, the sewage is purified to become clear water, then the clear water enters the clear water cavity (10) through the guide plate (7), meanwhile, hot air enters the heating cavity (20) through a hot air inlet pipe (21), then exits from the heating cavity (20) through a hot air outlet pipe (22), and circulates in the heating cavity (20);
fourthly, an electromagnetic valve on the water return pipe (11) is opened, a part of clear water enters the interior of the purification box (121) for storage, the clear water entering the interior of the purification box (121) is purified by the purification component (123) and then is collected in the interior of the purification box (121), and after a period of time, the electromagnetic valve on the water return pipe (11) is closed;
(V) scum in the sewage treatment process is collected on the water surface, a speed reducing motor (251) drives a roll shaft of one of the transmission rollers (252) to rotate through a transmission assembly (253), so that the transmission roller (252) rotates along with the rotation of the transmission belt (254), a plurality of scum removing plates (255) move along with the transmission belt (254), the scum removing plates (255) push the scum to move, and the scum is pushed into the scum collecting box (27) through a scum outlet (28), so that the scum collecting work is completed;
and (VI) discharging the clean water from the interior of the air flotation tank (1) through a clean water outlet pipe (24).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911360772.5A CN111003829A (en) | 2019-12-25 | 2019-12-25 | Pressurized dissolved air floatation equipment for industrial sewage treatment and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911360772.5A CN111003829A (en) | 2019-12-25 | 2019-12-25 | Pressurized dissolved air floatation equipment for industrial sewage treatment and use method thereof |
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| CN111003829A true CN111003829A (en) | 2020-04-14 |
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| CN201911360772.5A Pending CN111003829A (en) | 2019-12-25 | 2019-12-25 | Pressurized dissolved air floatation equipment for industrial sewage treatment and use method thereof |
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Application publication date: 20200414 |