CN120922958A - Dissolved air type air flotation machine - Google Patents
Dissolved air type air flotation machineInfo
- Publication number
- CN120922958A CN120922958A CN202511453304.8A CN202511453304A CN120922958A CN 120922958 A CN120922958 A CN 120922958A CN 202511453304 A CN202511453304 A CN 202511453304A CN 120922958 A CN120922958 A CN 120922958A
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- CN
- China
- Prior art keywords
- pipe
- shovel
- air
- water
- mixing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F1/52—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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physical Water Treatments (AREA)
Abstract
本发明属于气浮机技术领域，特别是涉及一种溶气式气浮机，包括主箱体；还包括混药机构、气溶罐、送水管、泵气管、水泵、回水管、铲槽和吸渣管，混药机构安装在主箱体的腔室的左下部，气溶罐安装在主箱体的外部，送水管的输入端伸入气溶罐的内部，送水管的输出端安装泵气管，泵气管安装在混气混合区的底部，水泵的抽水管伸入沉淀区的中部，回水管的输入端与水泵的一个出水口连接，回水管的输出端伸入气溶罐的内部，铲槽可左右移动的安装在主箱体的腔室上部，铲槽的左端伸入气浮层中，吸渣管安装在主箱体上，吸渣管的输入端伸入铲槽和主箱体的顶壁之间；其通过将浮渣聚集团铲起并排出，避免了浮渣聚集团被打散下沉，提高浮渣清除效率。
This invention belongs to the field of dissolved air flotation (DAF) technology, and specifically relates to a dissolved air flotation (DAF) machine, including a main housing; it also includes a mixing mechanism, an aerosol tank, a water supply pipe, an air pump pipe, a water pump, a return water pipe, a shovel, and a sludge suction pipe. The mixing mechanism is installed in the lower left part of the main housing chamber, the aerosol tank is installed outside the main housing, the input end of the water supply pipe extends into the interior of the aerosol tank, the output end of the water supply pipe is connected to the air pump pipe, the air pump pipe is installed at the bottom of the mixing zone, the water pump's suction pipe extends into the middle of the sedimentation zone, the input end of the return water pipe is connected to one of the water pump's outlets, the output end of the return water pipe extends into the interior of the aerosol tank, the shovel is movable left and right and installed in the upper part of the main housing chamber, the left end of the shovel extends into the flotation layer, and the sludge suction pipe is installed on the main housing, the input end of the sludge suction pipe extends between the shovel and the top wall of the main housing; by shoveling up and discharging the sludge agglomerates, it avoids the sludge agglomerates being broken up and sinking, thus improving the sludge removal efficiency.
Description
Technical Field
The invention belongs to the technical field of air floaters, and particularly relates to a dissolved air floatation machine.
Background
The air floatation machine is water treatment equipment which generates a large number of micro bubbles in water by an air dissolving system, enables air to be attached to suspended particles in a highly dispersed micro bubble mode, causes the density to be smaller than that of water, and floats on the water surface by utilizing the buoyancy principle so as to realize solid-liquid separation.
In the prior art, chinese patent publication No. CN117843068B proposes an air floatation machine with high air dissolution efficiency, which comprises a box body, wherein one side of the box body is open, a baffle plate and an inclined plate are respectively and fixedly arranged on the inner wall of the box body, and the interior of the box body is sequentially divided into a dosing area, an air floatation area and a separation area; the invention is used as an air flotation machine with high air dissolution efficiency, on the premise of not increasing the area of the air flotation machine area, heavier and larger suspended matters in sewage are primarily separated by the separation plate, sludge is directly extracted after accumulation, the integral particle size and content of the suspended matters on the upper side of the separation plate are reduced, the air flotation workload is reduced, the water flow speed can be increased, the problem that the water flows fast to wash away the suspended matters which float upwards is avoided, the water flow speed and the air dissolution efficiency can be synchronously improved, and the sewage suspended matter separation efficiency is greatly improved.
However, in the prior art, the collected scum is scraped to the collecting tank by adopting the circularly movable scraping plate, and the scum aggregation is easily scattered by the scraping plate in the scraping process, so that the scum is separated from bubbles to sink, and the scum removing efficiency is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides the dissolved air flotation machine which can prevent the dross aggregation group from being scattered and sinking and improve the dross removal efficiency by scooping up and discharging the dross aggregation group.
The invention relates to a dissolved air flotation machine, which comprises a main box body, wherein a cavity is arranged in the main box body, and the dissolved air flotation machine also comprises a medicine mixing mechanism, an air dissolving tank, a water supply pipe, a pump air pipe, a water pump, a water return pipe, a shovel groove and a slag suction pipe;
the medicine mixing mechanism is arranged at the left lower part of a cavity of the main box body, a space above the medicine mixing mechanism is arranged to be a gas mixing area, the upper part of the gas mixing area is an air floatation layer, the medicine mixing mechanism is used for mixing wastewater with flocculant and coagulant to form mixed liquid and conveying the mixed liquid to the gas mixing area, a space at the right side of the medicine mixing mechanism is arranged to be a sedimentation area, the air dissolving tank is arranged at the outside of the main box body, the air dissolving tank is used for mixing clear water and high-pressure air to form air dissolving water, the input end of the water supply pipe extends into the air dissolving tank, the output end of the water supply pipe is provided with a pump pipe, the pump pipe is arranged at the bottom of the gas mixing area, the water pump is arranged at the right part of the main box body, the water suction pipe of the water pump extends into the middle part of the sedimentation area, the input end of the water return pipe is connected with a water outlet of the water pump, and the output end of the water return pipe extends into the air dissolving tank;
The shovel groove is slidably mounted on the upper portion of the cavity of the main box body, the left end of the shovel groove stretches into the air floatation layer, the slag suction pipe is mounted on the main box body, and the input end of the slag suction pipe stretches into the space between the shovel groove and the top wall of the main box body.
The waste water is input into a medicine mixing mechanism, dissolved substances in the waste water form flocculates and coagulants after flocculant and coagulants are added, the waste water containing the flocculates and the coagulants is input into a gas mixing area of the main box, the waste water is mixed with gas-soluble water which is output by a pump air pipe and is dissolved with a large amount of air, the pressure of the gas-soluble water is released, a large amount of microbubbles are formed by the air in the waste water to separate out and adsorb the flocculates and the coagulants in the waste water, the flocculates and the coagulants are gathered into a group and then float upwards to be gathered into an air floatation layer, clear water below the air floatation layer flows into the sedimentation area, clear water in the middle of the sedimentation area is pumped out by a water pump, one part of clear water is conveyed to a subsequent treatment system, the other part of clear water is input into the gas-soluble tank through a water return pipe to be mixed with high-pressure air to form gas-soluble water, and the gas-soluble water is input into the pump air pipe through the water supply pipe to form clear water for recycling; the flocculate and the aggregate in the air floatation layer reach the left end bottom of the designated thickness), the shovel groove moves leftwards to enter the mixed gas mixing area, so that the shovel groove shovels into the bottom of the air floatation layer, the flocculate and the aggregate are integrally collected to the upper part of the shovel groove, the vacuum pump operates to discharge the flocculate and the aggregate on the shovel groove out of the main box body through the slag suction pipe for subsequent treatment, and the shovel groove resets rightwards after the flocculate and the aggregate are discharged; compared with the prior art, the scum aggregation group is scooped up and discharged, so that the scum aggregation group is prevented from being scattered, the scum aggregation group cannot be separated from bubbles to sink, and the scum removal efficiency is improved.
Preferably, the left end of the shovel plate is provided with a shovel plate, the middle part of the shovel plate is upwards protruded, the left end of the shovel plate downwards extends to the lower part of the air floatation layer, a plurality of water filtering holes are formed in the left part of the shovel plate, when the shovel plate moves leftwards, the left part of the shovel plate shovel up flocculates and aggregate clusters floating in the air floatation layer, so that the flocculates and aggregate clusters enter the upper part of the shovel plate beyond the protrusions after being shoveled up along the left part of the shovel plate, the shoveling efficiency of the flocculates and aggregate clusters is improved, the flocculates and aggregate clusters on the shovel plate are blocked, the flocculates and aggregate clusters are prevented from overflowing the shovel plate, and the collecting efficiency of the flocculates and aggregate clusters is improved. The waste water filter further comprises a plurality of water filtering holes, when the flocculate and the aggregate are scooped up along the left part of the shovel plate, the mixed waste water is filtered out through the plurality of water filtering holes, the discharge of the mixed waste water is reduced, and the cleaning efficiency of the flocculate and the aggregate is improved.
Preferably, the multifunctional shovel comprises a main box body, a plurality of sliding blocks, a plurality of pushing components, a plurality of shovel grooves, a plurality of sliding blocks, a plurality of supporting rods and a plurality of pushing components, wherein the sliding blocks are respectively arranged on the inner walls of the front side and the rear side of the main box body, the sliding blocks are respectively arranged on the shovel grooves, the sliding blocks are respectively connected with the corresponding sliding rails, the fixed ends of the two pushing components are arranged on the sliding blocks, the piston rods of the two pushing components are connected with the main box body, the shovel grooves are arranged on the two sliding blocks in a sliding manner through the sliding blocks, and the piston rods of the two pushing components extend or shorten to drive the shovel grooves to move left and right, so that the shovel grooves can shovel up flocculates and condensed clusters in the air floatation layer and reset rightwards.
Preferably, the device further comprises a movable partition plate, the movable partition plate is arranged on the lower end face of the shovel groove, when the shovel groove is located in the gas mixing area, the lower end face of the movable partition plate is in contact with the upper end face of the medicine mixing mechanism, a water suction pipe of the water pump is located on the right portion of the movable partition plate, when the shovel groove is located in the sedimentation area of the main box body, the water suction pipe of the water pump is separated from the sedimentation area by the movable partition plate, sediment is prevented from being pumped out by the water pump, the sediment efficiency is improved, when the shovel groove is located in the gas mixing area of the main box body, the lower end of the movable partition plate is in contact with the medicine mixing mechanism, the gas mixing area is separated from the sedimentation area, the flocculate and the coagulated mass are prevented from overflowing and scattering into the sedimentation area, and the flocculate and coagulated mass removal efficiency is improved.
Preferably, the device further comprises a fixed partition plate, a first sludge discharge pipe and a second sludge discharge pipe, wherein the fixed partition plate is arranged at the right lower part of the sedimentation area of the main box body, when the shovel groove is positioned in the sedimentation area, the top end of the fixed partition plate is aligned with the movable partition plate, a clear water channel is arranged between the top end of the fixed partition plate and the movable partition plate, the input ends of the first sludge discharge pipe and the second sludge discharge pipe extend into the bottom of the sedimentation area of the main box body, the first sludge discharge pipe and the second sludge discharge pipe are respectively positioned at the left side and the right side of the fixed partition plate, sediment in the sedimentation area is respectively precipitated to the left side and the right side of the fixed partition plate, most of sediment is accumulated to the left side of the fixed partition plate and discharged through the first sludge discharge pipe, and a small part of sediment is precipitated to the right side of the fixed partition plate and discharged through the second sludge discharge pipe, so that sediment discharging efficiency is improved.
Preferably, the air inlet pipe is connected with an external high-pressure air system, high-pressure air is input into the air interlayer arranged between the inner container and the inside of the air dissolving tank through the air inlet pipe, microbubbles formed by the high-pressure air through the multiple microbubbles of the inner container are quickly dissolved into clear water in the air dissolving tank, the efficiency of forming air dissolving water is improved, the pressure sensor detects the pressure in the air dissolving tank, and the opening and closing of the air inlet pipe are regulated according to the pressure value, so that the pressure is kept stable.
Preferably, the medicine mixing mechanism comprises a medicine mixing box, an inner partition plate, a waste water pipe, a medicine adding pipe I, a medicine adding pipe II and a medicine adding pipe II, wherein the medicine mixing box is arranged at the left lower part of a cavity of the main box body, a mixing cavity is arranged in the medicine mixing box, the inner partition plate is arranged in the middle of the mixing cavity, a plurality of liquid passing holes are formed in the inner partition plate, the mixing cavity is divided into a flocculation chamber and a coagulation chamber by the inner partition plate, the waste water pipe and the medicine adding pipe I penetrate through the main box body and then extend into the flocculation chamber, the medicine adding pipe II penetrates through the main box body and then extend into the coagulation chamber, the liquid outlet pipe is arranged on the medicine mixing box, the input end of the liquid outlet pipe extends into the interior of the coagulation chamber, a pump pipe is positioned at the right side of the output end of the liquid outlet pipe, the waste water is input into the flocculation chamber of the medicine mixing box through the waste water pipe I, the flocculating agent is mixed with the waste water to flocculate the dissolved harmful substances in the waste water, the flocculate flows into the coagulation chamber of the medicine mixing box through the liquid passing holes of the inner partition plate, the coagulant is input into the coagulation chamber of the main box through the medicine adding pipe II, and the flocculation agent is well mixed into the main gas through the main gas.
Preferably, the flocculation device further comprises a motor, a stirring shaft and a plurality of stirring rods, wherein the motor is arranged outside the main box body, the stirring shaft is rotatably arranged in the mixing chamber, the end part of the stirring shaft is in transmission connection with an output shaft of the motor, the stirring rods are arranged on the outer wall of the stirring shaft and are respectively positioned in the flocculation chamber and the flocculation chamber, the stirring shaft and the stirring rods are driven by the motor to rotate, so that the stirring rods stir and mix wastewater, flocculant and coagulant, and the mixing uniformity is improved.
Preferably, the stirring device further comprises a plurality of arc plates, the arc plates are uniformly arranged on the stirring shaft along the circumferential direction, the input end of the liquid outlet pipe is provided with arc openings, the arc openings of the liquid outlet pipe are alternately shielded by the arc plates, the stirring shaft, the stirring rods, the stirring wastewater, the flocculating agent and the flocculating agent are enabled to be shielded by the arc plates alternately when the stirring shaft, the stirring rods, the flocculating agent and the flocculating agent are arranged, when the arc plates shield the arc openings of the liquid outlet pipe, the wastewater cannot be output through the liquid outlet pipe, when the arc plates leave the arc openings of the liquid outlet pipe, the wastewater is output through the liquid outlet pipe, the stay time of the wastewater in the medicine mixing box is prolonged, and the wastewater, the flocculating agent and the flocculating agent are enabled to be fully mixed.
Compared with the prior art, the invention has the beneficial effects that the scum aggregation group is shoveled and discharged, so that the scum aggregation group is prevented from being scattered, the scum aggregation group cannot separate from bubbles to sink, and the scum removal efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the scoop of the present invention in a right-side state;
FIG. 3 is a schematic view showing a front cross-sectional structure of the scoop slot of the present invention in a right-side state;
FIG. 4 is a schematic view showing a front cross-sectional structure of the scoop of the present invention in a left-side state;
FIG. 5 is a schematic diagram of a rear view isometric construction of the present invention;
FIG. 6 is a schematic illustration of an axially measured structure of the present invention;
FIG. 7 is a schematic structural view of a drug mixing mechanism;
FIG. 8 is a schematic view of the structure of the inner partition, the liquid outlet pipe, the motor, the stirring shaft, the stirring rod, the arc plate and the like;
FIG. 9 is a schematic view of the structure of the scoop, scoop plate, drainage hole, slide rail, slider frame, pushing member, and movable partition;
FIG. 10 is a schematic diagram of the structure of the aerosol canister, water supply pipe, pump air pipe, water pump, water return pipe, air inlet pipe and liner;
The drawing comprises a main box body 1, a medicine mixing mechanism 3, an air dissolving tank 4, a water supply pipe 5, a pump pipe 6, a water pump 7, a water return pipe 8, a shovel groove 9, a slag suction pipe 10, a shovel plate 11, a water filtering hole 12, a sliding rail 13, a sliding block frame 14, a pushing component 15, a movable partition plate 16, a fixed partition plate 17, a first mud discharge pipe 18, a second mud discharge pipe 19, an air inlet pipe 20, an inner container 21, a pressure sensor 22, a medicine mixing box 23, an inner partition plate 24, a waste pipe 25, a first medicine adding pipe 26, a second medicine adding pipe 27, a liquid outlet pipe 28, a motor 29, a stirring shaft 30, a stirring rod 31 and an arc plate.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. This invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
1, As shown in fig. 1 to 6, 9 and 10, a dissolved air flotation machine comprises a main box body 1, a medicine mixing mechanism 2, an air dissolving tank 3, a water delivery pipe 4, a pump air pipe 5, a water pump 6, a water return pipe 7, a shovel tank 8 and a slag suction pipe 9, wherein a cavity is arranged in the main box body 1, the medicine mixing mechanism 2 is arranged at the left lower part of the cavity of the main box body 1, the upper space of the medicine mixing mechanism 2 is arranged as a mixed air mixing area, the upper part of the mixed air mixing area is an air flotation layer, the medicine mixing mechanism 2 is used for mixing wastewater with flocculant and coagulant, the mixed liquid is conveyed to the mixed air mixing area, the right side space of the medicine mixing mechanism 2 is arranged as a sedimentation area, the air dissolving tank 3 is arranged outside the main box body 1, the input end of the water delivery pipe 4 extends into the air dissolving tank 3, the output end of the water delivery pipe 4 is provided with the pump air pipe 5, the pump air pipe 5 is arranged at the bottom of the mixed air mixing area, the water pump 6 is arranged at the upper part of the water suction pipe 6, the top wall of the water pump 7 is arranged at the left side of the water inlet of the main box body 1 and the top wall of the air dissolving tank 1, the left side of the water pump 8 is connected to the water pump 8, the left side of the air tank is arranged at the top wall of the water inlet end of the air tank 7 is connected to the air tank 8, and the left side of the air tank 8 is connected to the water inlet end of the air tank 8, and the air tank 8 is arranged at the top of the air tank 1; the multifunctional shovel comprises a shovel plate 10, a shovel plate 10 is arranged at the left end of a shovel groove 8, the middle part of the shovel plate 10 protrudes upwards, the left end of the shovel plate 10 extends downwards to the lower part of an air floatation layer, a plurality of water filtering holes 11 are arranged at the left part of the shovel plate 10, two slide rails 12, a plurality of slide block frames 13 and two pushing parts 14 are also included, the two slide rails 12 are respectively arranged on the inner walls of the front side and the rear side of the main box body 1, the multifunctional air dissolving tank comprises a shovel groove 8, a plurality of sliding block frames 13, an air inlet pipe 19, an inner container 20 and a pressure sensor 21, wherein the sliding block frames 13 are arranged on the shovel groove 8, the sliding block frames 13 are respectively connected with two sliding rails 12 in a sliding mode, fixed ends of two pushing components 14 are arranged on the sliding block frames 13, piston rods of the two pushing components 14 are connected with a main box body 1, the multifunctional air dissolving tank further comprises an air inlet pipe 19, an inner container 20 and a pressure sensor 21, the inner container 20 is arranged in the air dissolving tank 3, an air interlayer is arranged between the inner container 20 and the air dissolving tank 3, the output end of the air inlet pipe 19 stretches into the air interlayer, a plurality of micro-air holes are formed in the inner container 20, the pressure sensor 21 is arranged on the air dissolving tank 3, and a probe of the pressure sensor 21 stretches into the air dissolving tank 3.
The shovel groove 8 is slidably arranged on the two slide rails 12 through a plurality of slide block frames 13, the piston rods of the two pushing parts 14 extend or shorten to drive the shovel groove 8 to move left and right, so that the shovel groove 8 can shovel up flocculate and coagulated matter in an air floatation layer and reset rightwards, the slag sucking pipe 9 is connected with an external vacuum pump, the shovel groove 8 moves to the upper part of a sedimentation area of the main box body 1 during operation, waste water is input into the medicine mixing mechanism 2, dissolved substances in the waste water form flocculate and coagulated matter after flocculant and coagulant are added, the waste water containing the flocculate and coagulated matter is input into a gas mixing area of the main box body 1, the waste water is mixed with gas-dissolved water which is output by the air pumping pipe 5 and is dissolved with a large amount of air, the gas-dissolved water releases pressure, a large amount of microbubbles are formed in the air to precipitate and adsorb the flocculate and coagulated matter in the waste water, the flocculate and the aggregate are gathered into a group and then float upwards to be gathered into an air floating layer, clear water below the air floating layer flows into a sedimentation area, clear water in the middle of the sedimentation area is pumped out by a water pump 6, one part of clear water is conveyed to a subsequent treatment system, the other part of clear water is conveyed into an air dissolving tank 3 through a water return pipe 7, an air inlet pipe 19 is connected with an external high-pressure air system, high-pressure air is conveyed into an air interlayer between an inner container 20 and the inside of the air dissolving tank 3 through the air inlet pipe 19, and the high-pressure air forms microbubbles through a plurality of micro-holes of the inner container 20 to be quickly dissolved into the clear water in the air dissolving tank 3, so that the efficiency of forming air dissolving water is improved, a pressure sensor 21 detects the pressure in the air dissolving tank 3, the pressure is kept stable by adjusting the opening and closing of the air inlet pipe 19 according to a pressure value, the air dissolving water is conveyed into a pump pipe 5 through a water conveying pipe 4, the method comprises the steps of forming recycling of clear water, when the bottoms of flocculate and aggregate in an air floatation layer are slightly higher than the bottoms of the left ends of the shovel plates 10, and when the shovel grooves 8 move leftwards, the left parts of the shovel plates 10 shovel up the flocculate and aggregate floating in the air floatation layer, so that the flocculate and aggregate enter the upper part of the shovel grooves 8 beyond the bulges after being shoveled up along the left parts of the shovel plates 10, the shoveling efficiency of the flocculate and aggregate is improved, the flocculate and aggregate on the shovel grooves 8 are blocked, the flocculate and aggregate are prevented from overflowing the shovel grooves 8, mixed wastewater is filtered out through a plurality of water filtering holes 11 when the flocculate and aggregate are shoveled up along the left parts of the shovel plates 10, mixed wastewater is reduced, the flocculate and aggregate is integrally collected to the upper parts of the shovel grooves 8, a vacuum pump operates to discharge the flocculate and aggregate on the shovel grooves 8 out of a main box 1 through a slag sucking pipe 9 for subsequent treatment, the flocculate and aggregate are prevented from overflowing the shovel grooves 8, and the mixed wastewater is prevented from being discharged to the right after the flocculate and aggregate is discharged, and the scum is prevented from being separated from the scum is removed.
Embodiment 2, as shown in fig. 1 to 4 and 9, further comprises a movable partition 15 on the basis of embodiment 1, wherein the movable partition 15 is installed on the right part of the lower end face of the shovel tank 8, when the shovel tank 8 is located in the gas mixing area of the main box 1, the lower end face of the movable partition 15 is in contact with the upper end face of the medicine mixing mechanism 2, the water suction pipe of the water pump 6 is located on the right part of the movable partition 15, the fixed partition 16 is installed on the right lower part of the sedimentation area of the main box 1, when the shovel tank 8 is located in the sedimentation area, the top end of the fixed partition 16 is aligned with the movable partition 15, a clear water channel is arranged between the top end of the fixed partition 16 and the movable partition 15, the input ends of the first and second sludge discharge pipes 17 and 18 extend into the bottom of the sedimentation area of the main box 1, and the first and second sludge discharge pipes 17 and 18 are located on the left and right sides of the fixed partition 16, respectively.
When the shovel groove 8 is positioned in the sedimentation area of the main box body 1, the water suction pipe of the water pump 6 is separated from the sedimentation area by the movable partition 15, sediment is prevented from being pumped out by the water pump 6, the clean water purity is improved, the sedimentation efficiency is improved, sediment in the sedimentation area is respectively precipitated to the left side and the right side of the fixed partition 16, most sediment is gathered to the left side of the fixed partition 16 and is discharged through the first mud discharge pipe 17, a small part of sediment is precipitated to the right side of the fixed partition 16 and is discharged through the second mud discharge pipe 18, the sedimentation mud discharge efficiency is improved, and when the shovel groove 8 is positioned in the mixed gas mixing area of the main box body 1, the lower end of the movable partition 15 is contacted with the medicine mixing mechanism 2, so that the mixed gas mixing area is separated from the sedimentation area, the flocculate and the coagulated mass are prevented from overflowing into the sedimentation area, and the flocculate and coagulated mass cleaning efficiency is improved.
1-4, 7 And 8, based on embodiment 1, the medicine mixing mechanism 2 comprises a medicine mixing box 22, an inner partition 23, a waste pipe 24, a first medicine adding pipe 25, a second medicine adding pipe 26 and a second medicine adding pipe 26, wherein the medicine mixing box 22 is arranged at the left lower part of a cavity of the main box 1, a mixing cavity is arranged in the medicine mixing box 22, the inner partition 23 is arranged at the middle part of the mixing cavity of the medicine mixing box 22, a plurality of liquid passing holes are formed in the inner partition 23, the mixing cavity is divided into a flocculation chamber and a condensation chamber by the inner partition 23, the waste pipe 24 penetrates through the main box 1 and then stretches into the flocculation chamber of the medicine mixing box 22, the first medicine adding pipe 25 penetrates through the main box 1 and then stretches into the flocculation chamber of the medicine mixing box 22, the liquid outlet pipe 27 is arranged on the medicine mixing box 22, the input end of the liquid outlet pipe 27 stretches into the flocculation chamber, and the pump air pipe 5 is positioned at the right side of the output end of the liquid outlet pipe 27; the stirring device comprises a main box body 1, a stirring shaft 29, a plurality of stirring rods 30, a plurality of arc plates 31, wherein the motor 28 is arranged outside the main box body 1, the stirring shaft 29 is rotatably arranged in a mixing chamber of the medicine mixing mechanism 2, the end part of the stirring shaft 29 is in transmission connection with an output shaft of the motor 28, the stirring rods 30 are arranged on the outer wall of the stirring shaft 29, the stirring rods 30 are respectively positioned in a flocculation chamber and a coagulation chamber of the medicine mixing box 22, the arc plates 31 are uniformly arranged on the stirring shaft 29 along the circumferential direction, an arc opening is formed in the input end of a liquid outlet pipe 27, and the arc openings of the liquid outlet pipe 27 are alternately shielded by the arc plates 31.
The wastewater is input into a flocculation chamber of the medicine mixing box 22 through a wastewater pipe 24, the flocculant is input into the flocculation chamber through a first medicine adding pipe 25 to be mixed with the wastewater to flocculate and separate out dissolved harmful substances in the wastewater, the flocculate flows into a flocculation chamber of the medicine mixing box 22 through a liquid passing hole of an inner partition plate 23, the coagulant is input into the flocculation chamber through a second medicine adding pipe 26 to be mixed with the wastewater to form a flocculate, a motor 28 drives a stirring shaft 29 and a plurality of stirring rods 30 to rotate, the plurality of stirring rods 30 stir and mix the wastewater, the mixing uniformity is improved, the wastewater is input into a gas mixing area of the main box 1 through the liquid outlet pipe 27, the plurality of arc plates 31 are arranged to alternately shield arc openings of the liquid outlet pipe 27 when the stirring shaft 29 and the plurality of stirring rods 30 stir the wastewater, the flocculant and the coagulant, the wastewater is not output through the liquid outlet pipe 27 when the arc openings of the liquid outlet pipe 27 are shielded by the arc plates 31, and the wastewater stays in the medicine mixing box 22 for a sufficient mixing time period when the wastewater leaves the arc openings of the liquid outlet pipe 27.
As shown in fig. 1 to 10, in the air-dissolving type air floatation machine of the invention, when in operation, firstly, a shovel groove 8 moves to the upper part of a sedimentation area of a main box body 1, waste water is input into a medicine mixing mechanism 2, dissolved substances in the waste water form flocculates and coagulants to be separated out after flocculant and coagulant are added, waste water containing the flocculates and the coagulants is input into a gas-mixing area of the main box body 1, the waste water is mixed with air-soluble water which is output by a pump air pipe 5 and is dissolved with a large amount of air, the air is released into pressure, a large amount of microbubbles are formed by the air to separate out and adsorb the flocculates and the coagulants in the waste water, the flocculates and the coagulants are gathered into a floatation layer, then clear water below the floatation layer flows into the sedimentation area, the sediments in the sedimentation area are respectively precipitated to the left side and the right side of a fixed partition 16, most of the sediments are gathered to the left side of the fixed partition 16 and discharged through a first discharge pipe 17, a small part of the sediments is precipitated to the right side of the fixed partition 16 and is discharged through a second discharge pipe 18, a part of the water-soluble water is conveyed into a water pump 4 through a second discharge pipe 6, and a part of the air-dissolving water is conveyed into a water circulation system through a high pressure pipe 4, and a part of the air pump 4 is formed by the water-dissolving water pump is conveyed into the air-dissolving water circulation system; when the flocculate and the aggregate in the air floating layer reach a specified thickness, the two pushing members 14 drive the shovel grooves 8 to move leftwards, the left part of the shovel plate 10 shovel up the flocculate and the aggregate floating in the air floating layer, so that the flocculate and the aggregate enter above the shovel grooves 8 beyond the protrusions after being shoveled up along the left part of the shovel plate 10, the mixed wastewater is filtered out through the plurality of water filtering holes 11, finally, the vacuum pump runs to discharge the flocculate and the coagulated matter on the shovel groove 8 out of the main box body 1 through the slag suction pipe 9 for subsequent treatment, and after the flocculate and the coagulated matter are discharged, the shovel groove 8 is reset rightwards.
The main functions realized by the invention are as follows:
1. By scooping up and discharging the dross aggregation groups, the dross aggregation groups are prevented from being scattered, the dross aggregation groups cannot be separated from bubbles to sink, and the dross removal efficiency is improved;
2. When the flocculate and the aggregate are scooped up along the left part of the shovel plate 10, the mixed wastewater is filtered out through the plurality of water filtering holes 11, so that the discharge of the mixed wastewater is reduced, and the removal efficiency of the flocculate and the aggregate is improved;
3. When the shovel groove 8 is positioned in the gas mixing and mixing area of the main box body 1 to shovel up flocculate and coagulated matter, the lower end of the movable baffle 15 is contacted with the medicine mixing mechanism 2, so that the gas mixing area is separated from the sedimentation area, the flocculate and coagulated matter are prevented from overflowing and scattering into the sedimentation area, and the removal efficiency of the flocculate and coagulated matter is improved;
4. The high-pressure air forms micro bubbles through a plurality of micro holes of the liner 20 to be quickly dissolved into clear water in the air dissolving tank 3, so that the efficiency of forming air dissolving water is improved;
5. The duration of the stay of the wastewater in the medicine-mixing tank 22 can be prolonged, so that the wastewater is fully mixed with the flocculant and the coagulant.
The main box body 1, the medicine mixing mechanism 2, the air dissolving tank 3, the air pumping pipe 5, the water pump 6, the slag sucking pipe 9, the sliding rail 12, the pushing component 14, the first mud discharging pipe 17, the second mud discharging pipe 18, the air inlet pipe 19, the liner 20, the pressure sensor 21, the medicine mixing box 22, the first medicine adding pipe 25, the second medicine adding pipe 26, the motor 28, the stirring shaft 29 and the stirring rod 30 of the air dissolving type air floatation machine can be implemented in a common mechanical mode as long as the beneficial effects can be achieved.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (9)
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| CN202511453304.8A CN120922958B (en) | 2025-10-13 | 2025-10-13 | A dissolved air flotation machine |
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2025
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|---|---|---|---|---|
| US5382358A (en) * | 1993-03-24 | 1995-01-17 | Yeh; George C. | Apparatus for dissolved air floatation and similar gas-liquid contacting operations |
| KR19990065123A (en) * | 1998-01-08 | 1999-08-05 | 정용 | Water treatment method and device by external column type integrated pressure filtration |
| KR20030079414A (en) * | 2002-04-04 | 2003-10-10 | (주)대성그린테크 | The waster water treatment system and method |
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| CN120922958B (en) | 2025-12-23 |
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