CN112376307A - Combined air flotation device for paper pulp recovery - Google Patents
Combined air flotation device for paper pulp recovery Download PDFInfo
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- CN112376307A CN112376307A CN202011223768.7A CN202011223768A CN112376307A CN 112376307 A CN112376307 A CN 112376307A CN 202011223768 A CN202011223768 A CN 202011223768A CN 112376307 A CN112376307 A CN 112376307A
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- air flotation
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/04—Flat screens
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
- D21F1/70—Pulp catching, de-watering, or recovering; Re-use of pulp-water by flotation
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Abstract
The invention belongs to the technical field of paper pulp recovery, and particularly relates to a combined air floatation device for paper pulp recovery, aiming at the problem of low paper pulp recovery efficiency, the combined air floatation device comprises an air floatation tank, wherein the inner walls of the left side and the right side of the air floatation tank are rotatably connected with a stirring shaft through a bearing near the rear side, the circumferential outer wall of the stirring shaft is respectively fixed with a first stirring blade and a second stirring blade, the first stirring blade and the second stirring blade are equidistantly distributed on the circumferential outer wall of the stirring shaft, and the first stirring blade and the second stirring blade are the same in size and are bilaterally symmetrical. According to the invention, the output shaft of the motor drives the stirring shaft to rotate, the stirring shaft rotates to drive the first stirring blade and the second stirring blade to rotate, the first stirring blade and the second stirring blade continuously flap the paper pulp solution to generate bubbles, the air pump is started to introduce air into the stirring shaft, and the air is emitted from the first air outlet pipe, so that the bubbles in the paper pulp solution are increased, namely the air flotation recovery efficiency of the paper pulp solution is increased.
Description
Technical Field
The invention relates to the technical field of paper pulp recovery, in particular to a combined air floatation device for paper pulp recovery.
Background
The air flotation is a short name of an air flotation machine and can also be used as a proper term, namely, the air flotation method in water treatment is a process of forming highly dispersed micro bubbles in water, adhering solid or liquid particles of hydrophobic groups in wastewater to form a water-gas-particle three-phase mixed system, forming flocs with apparent density smaller than that of the water after the particles adhere to the bubbles, floating to the water surface, forming a scum layer and scraping, thereby realizing solid-liquid or liquid-liquid separation. The air floatation generates a large amount of fine bubbles in water, and the fine bubbles are adhered to small suspended particles in the wastewater. Forming a 'bubble particle' complex with the whole density smaller than that of water, and floating the suspended particles to the water surface along with bubbles to form foam floating check, thereby separating suspended matters in water. The air flotation process is an alternative to precipitation.
Through the retrieval, chinese patent application No. 201620131605.9's patent discloses a paper pulp filters recovery unit, cylindrical filtration recovery drum including vertical setting, be provided with the filter screen in the filtration recovery drum, the filter screen is including setting up the second filter screen in the first filter screen in upper portion and lower part, just the filtration pore diameter of crossing of first filter screen is greater than the filtration pore diameter of crossing of second filter screen, first filter screen with the second filter screen will it separates into first filter chamber, second filter chamber and paper pulp room from last to separating into down in proper order to filter the recovery drum, the central point of filtering the recovery drum puts the vertical pivot that is provided with, the pivot runs through first filter screen with filter the top of recovery drum, the pivot is in by setting up the driving motor drive at filtration recovery drum top. Above-mentioned device has the weak point, utilizes the filter screen to filter impurity, again with impurity recovery, the filter screen can be continuous interception impurity, when impurity is more, impurity piles up, needs in time to clear up, and artifical clearance is consuming time power, has reduced the filterable speed of paper pulp, and paper pulp recovery efficiency is low promptly.
Disclosure of Invention
Based on the technical problem of low paper pulp recovery efficiency, the invention provides a combined air flotation device for paper pulp recovery.
The invention provides a combined air flotation device for paper pulp recovery, which comprises an air flotation tank, wherein the inner walls of the left side and the right side of the air flotation tank are rotatably connected with a stirring shaft through bearings near the rear side, the circumferential outer wall of the stirring shaft is respectively fixed with a first stirring blade and a second stirring blade, the first stirring blade and the second stirring blade are equidistantly distributed on the circumferential outer wall of the stirring shaft, the first stirring blade and the second stirring blade are identical in size and are bilaterally symmetrical, the outer walls of the two sides of the first stirring blade and the second stirring blade are respectively provided with a first air outlet pipe which is uniformly distributed, and the first air outlet pipe is communicated with the stirring shaft through the interiors of the first stirring blade and the second stirring blade.
Preferably, an air pump is fixed on the outer wall of the left side of the air floatation tank, an output end of the air pump is fixedly connected with an inflation tube, and one end of the inflation tube is communicated with the inside of the stirring shaft.
Preferably, a motor is fixed on the outer wall of the right side of the air floatation tank, and an output shaft of the motor is connected with the stirring shaft through a coupler.
Preferably, the rear side outer wall of the air flotation tank is provided with water inlet holes distributed at equal intervals, the rear side outer wall of each water inlet hole is fixedly provided with a water inlet pipe, the top outer wall of each water inlet pipe is provided with a rectangular groove, and the inner wall of each rectangular groove is spliced with a screen plate.
Preferably, the inner walls of the left side and the right side of the air floatation tank are fixed with partition plates distributed at equal intervals, and the outer wall of the top of each partition plate is provided with water permeable holes distributed uniformly.
Preferably, the outer wall of the top of the partition plate is fixed with a first mounting plate and a second mounting plate which are uniformly distributed, the corner at the upper right of the first mounting plate is a toothed oblique notch, and the corner at the lower left of the second mounting plate is a toothed oblique notch.
Preferably, the top outer wall of the air flotation tank is fixed with supporting plates at the left side and the right side of the air flotation tank, the inner walls at two opposite sides of the supporting plates are rotatably connected with rotating shafts through bearings, and fishing plates which are distributed equidistantly are fixed on the outer wall of the circumference of each rotating shaft.
Preferably, the right end of pivot is fixed with from the driving wheel, and the circumference outer wall of motor output shaft is fixed with the action wheel, and driving wheel and the circumference outer wall from the driving wheel cup joint driving belt.
Preferably, a collecting box is fixed on the front side outer wall of the air floatation tank close to the top end, and a water outlet pipe is arranged on the front side outer wall of the air floatation tank close to the bottom end.
Preferably, the bottom in air supporting pond is provided with the second intake pipe that the equidistance distributes, and the left end fixedly connected with first intake pipe of second intake pipe, and the circumference outer wall of second intake pipe is provided with the second outlet duct that the equidistance distributes, and the one end of first intake pipe is connected with the output of air pump.
The beneficial effects of the invention are as follows:
1. through the air supporting pond that sets up, the (mixing) shaft, first stirring leaf, second stirring leaf, starter motor, the output shaft of motor drives the (mixing) shaft rotation, the (mixing) shaft rotation drives first stirring leaf and second stirring leaf and rotates, first stirring leaf and the continuous paper pulp solution of patting of second stirring leaf, the gassing produces, start the air pump and let in gas to the (mixing) shaft, gas is followed first outlet duct and is appeared, the bubble in the paper pulp solution has been increased, the air supporting recovery efficiency of the paper pulp solution that increases promptly.
2. Through the screen cloth version that sets up, before paper pulp got into the air supporting pond from the inlet tube, can contain great impurity, the screen cloth version can block great impurity, gets rid of impurity from paper pulp, carries out the preliminary treatment to paper pulp, is favorable to the subsequent air supporting link high efficiency operation of paper pulp.
3. Through division board, first mounting panel, the second mounting panel that sets up, when paper pulp flowed forward, the striking was on first mounting panel and second mounting panel, changes the flow direction of paper pulp, is favorable to the continuous striking first mounting panel of paper pulp and second mounting panel to produce the bubble simultaneously, and one side of first mounting panel and second mounting panel is the cusp, and the area of contact increase with paper pulp is favorable to the large-area production bubble of paper pulp.
4. Through backup pad, salvage board, the pivot that sets up, through air supporting rear side paper pulp wafts to the surface of water, the rotation of pivot and salvage board salvages the paper pulp of the surface of water to get rid of forward and collect in getting rid of the collecting box, need not manual operation, work efficiency is high, saves the labour, is favorable to the quick recovery of paper pulp.
5. Through first intake pipe, second intake pipe, the second outlet duct that sets up, when paper pulp was retrieved, let in gas to in the first intake pipe, gas gets into the second intake pipe, discharges from the second outlet duct, and upward movement forms the bubble, has increased the efficiency of air supporting for the recovery of paper pulp.
Drawings
FIG. 1 is a schematic side view of a combined air flotation device for pulp recovery according to the present invention;
FIG. 2 is a schematic sectional view of a combined air flotation device for pulp recovery according to the present invention;
FIG. 3 is a schematic structural diagram of a first mounting plate and a second mounting plate of the combined air flotation device for pulp recovery according to the present invention;
FIG. 4 is a schematic perspective view of a combined air flotation device for pulp recovery according to the present invention;
FIG. 5 is a schematic structural view of a first stirring blade of the combined air flotation device for pulp recovery according to the present invention;
fig. 6 is a schematic structural diagram of a combined air flotation device for pulp recovery according to an embodiment of the present invention.
In the figure: 1-water inlet pipe, 2-driving belt, 3-motor, 4-water outlet pipe, 5-air floating tank, 6-collecting box, 7-supporting plate, 8-driven wheel, 9-salvaging plate, 10-separating plate, 11-permeable hole, 12-stirring shaft, 13-first stirring blade, 14-second stirring blade, 15-water inlet hole, 16-screen plate, 17-air pump, 18-inflation pipe, 19-first air outlet pipe, 20-first mounting plate, 21-second mounting plate, 22-first air inlet pipe, 23-second air inlet pipe, 24-second air outlet pipe, 25-driving wheel and 26-rotating shaft.
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.
Example 1:
referring to fig. 1-5, a combined air flotation device for paper pulp recovery comprises an air flotation tank 5, wherein the inner walls of the left side and the right side of the air flotation tank 5 are rotatably connected with a stirring shaft 12 through bearings near the rear side, the circumferential outer wall of the stirring shaft 12 is respectively fixed with a first stirring blade 13 and a second stirring blade 14 through screws, the first stirring blade 13 and the second stirring blade 14 are equidistantly distributed on the circumferential outer wall of the stirring shaft 12, the first stirring blade 13 and the second stirring blade 14 have the same size and are bilaterally symmetrical, the outer walls of the two sides of the first stirring blade 13 and the second stirring blade 14 are respectively provided with a first air outlet pipe 19 which is uniformly distributed, the first air outlet pipe 19 is communicated with the stirring shaft 12 through the interiors of the first stirring blade 13 and the second stirring blade 14, a motor 3 is started, the output shaft of the motor 3 drives the stirring shaft 12 to rotate, the stirring shaft 12 rotates to drive the first stirring blade 13, the first stirring blade 13 and the second stirring blade 14 continuously flap the pulp solution to generate bubbles, the air pump 17 is started to introduce air into the stirring shaft 12, and the air is discharged from the first air outlet pipe 19, so that the bubbles in the pulp solution are increased, namely the air flotation recovery efficiency of the pulp solution is increased.
In the invention, an air pump 17 is fixed on the outer wall of the left side of the air flotation tank 5 through screws, an air charging pipe 18 is fixedly connected with the output end of the air pump 17, and one end of the air charging pipe 18 is communicated with the inside of the stirring shaft 12.
In the invention, the outer wall of the right side of the air floatation tank 5 is fixed with a motor 3 through a screw, and the output shaft of the motor 3 is connected with a stirring shaft 12 through a coupler.
According to the invention, the rear side outer wall of the air floatation tank 5 is provided with the water inlet holes 15 which are distributed at equal intervals, the rear side outer wall of each water inlet hole 15 is fixed with the water inlet pipe 1 through a screw, the top outer wall of the water inlet pipe 1 is provided with the rectangular groove, the inner wall of the rectangular groove is inserted with the screen plate 16, paper pulp can contain larger impurities before entering the air floatation tank 5 from the water inlet pipe 1, the screen plate 16 can block the larger impurities, the impurities are removed from the paper pulp, the paper pulp is pretreated, and the subsequent air floatation link of the paper pulp can be operated efficiently.
In the invention, partition plates 10 which are equidistantly distributed are fixed on the inner walls of the left side and the right side of the air floatation tank 5 through screws, and water permeable holes 11 which are uniformly distributed are formed on the outer wall of the top of each partition plate 10.
According to the invention, the first mounting plate 20 and the second mounting plate 21 which are uniformly distributed are fixed on the outer wall of the top of the partition plate 10 through screws, the corner at the upper right of the first mounting plate 20 is a toothed oblique cut, the corner at the lower left of the second mounting plate 21 is a toothed oblique cut, when paper pulp flows forwards, the paper pulp impacts the first mounting plate 20 and the second mounting plate 21 to change the flow direction of the paper pulp, meanwhile, the paper pulp can impact the first mounting plate 20 and the second mounting plate 21 continuously to generate bubbles, one side of the first mounting plate 20 and the second mounting plate 21 is toothed, the contact area with the paper pulp is increased, and the large-area generation of bubbles of the paper pulp is facilitated.
According to the invention, supporting plates 7 are fixed on the left side and the right side of the air flotation tank 5 on the outer wall of the top of the air flotation tank 5 through screws, the inner walls of two opposite sides of each supporting plate 7 are rotatably connected with a rotating shaft 26 through bearings, and fishing plates 9 are fixed on the outer wall of the circumference of each rotating shaft 26 and are distributed at equal intervals through screws.
According to the invention, the driven wheel 8 is fixed at the right end of the rotating shaft 26 through a screw, the driving wheel 25 is fixed on the circumferential outer wall of the output shaft of the motor 3 through a screw, the driving wheel 25 and the circumferential outer wall of the driven wheel 8 are sleeved with the transmission belt 2, paper pulp floats to the water surface through the air floatation rear side, the rotating shaft 26 and the salvaging plate 9 rotate to salvage the paper pulp on the water surface and throw the paper pulp forwards into the collecting box 6 for collection, manual operation is not needed, the working efficiency is high, the labor force is saved, and the quick recovery of the paper pulp is.
In the invention, a collecting box 6 is fixed on the front outer wall of the air flotation tank 5 close to the top end through a screw, and a water outlet pipe 4 is arranged on the front outer wall of the air flotation tank 5 close to the bottom end.
Before paper pulp enters the air flotation tank 5 from the water inlet pipe 1, the screen plate 16 blocks larger impurities to remove the impurities from the paper pulp, the motor 3 is started, the output shaft of the motor 3 drives the stirring shaft 12 to rotate, the stirring shaft 12 rotates to drive the first stirring blade 13 and the second stirring blade 14 to rotate, the first stirring blade 13 and the second stirring blade 14 continuously flap paper pulp solution to generate bubbles, the air pump 17 is started to introduce air into the stirring shaft 12, the air is emitted from the first air outlet pipe 19 to increase the bubbles in the paper pulp solution, the paper pulp flows forwards and impacts the first mounting plate 20 and the second mounting plate 21 to change the flow direction of the paper pulp, meanwhile, the paper pulp can continuously impact the first mounting plate 20 and the second mounting plate 21 to generate bubbles, the paper pulp floats to the water surface after air floatation, and the paper pulp on the water surface is salvaged through the rotation of the rotating shaft 26 and the salvage plate 9 and is thrown forwards into the collecting box 6 to be collected.
Example 2:
referring to fig. 5, a combined air flotation device for paper pulp recovery comprises an air flotation tank 5, wherein inner walls of left and right sides of the air flotation tank 5 are rotatably connected with a stirring shaft 12 through a bearing near the rear side, the circumferential outer wall of the stirring shaft 12 is respectively fixed with a first stirring blade 13 and a second stirring blade 14 through screws, the first stirring blade 13 and the second stirring blade 14 are equidistantly distributed on the circumferential outer wall of the stirring shaft 12, the first stirring blade 13 and the second stirring blade 14 have the same size and are bilaterally symmetrical, the outer walls of both sides of the first stirring blade 13 and the second stirring blade 14 are respectively provided with a first air outlet pipe 19 which are uniformly distributed, the first air outlet pipe 19 is communicated with the stirring shaft 12 through the interiors of the first stirring blade 13 and the second stirring blade 14, a motor 3 is started, an output shaft of the motor 3 drives the stirring shaft 12 to rotate, the stirring shaft 12 rotates to drive the first stirring blade 13 and the second stirring blade 14 to rotate, the first stirring blade 13 and the second stirring blade 14, and (3) generating bubbles, starting the air pump 17 to introduce air into the stirring shaft 12, and discharging the air from the first air outlet pipe 19, so that the bubbles in the pulp solution are increased, namely the air flotation recovery efficiency of the pulp solution is increased.
In the invention, an air pump 17 is fixed on the outer wall of the left side of the air flotation tank 5 through screws, an air charging pipe 18 is fixedly connected with the output end of the air pump 17, and one end of the air charging pipe 18 is communicated with the inside of the stirring shaft 12.
In the invention, the outer wall of the right side of the air floatation tank 5 is fixed with a motor 3 through a screw, and the output shaft of the motor 3 is connected with a stirring shaft 12 through a coupler.
According to the invention, the rear side outer wall of the air floatation tank 5 is provided with the water inlet holes 15 which are distributed at equal intervals, the rear side outer wall of each water inlet hole 15 is fixed with the water inlet pipe 1 through a screw, the top outer wall of the water inlet pipe 1 is provided with the rectangular groove, the inner wall of the rectangular groove is inserted with the screen plate 16, paper pulp can contain larger impurities before entering the air floatation tank 5 from the water inlet pipe 1, the screen plate 16 can block the larger impurities, the impurities are removed from the paper pulp, the paper pulp is pretreated, and the subsequent air floatation link of the paper pulp can be operated efficiently.
In the invention, partition plates 10 which are equidistantly distributed are fixed on the inner walls of the left side and the right side of the air floatation tank 5 through screws, and water permeable holes 11 which are uniformly distributed are formed on the outer wall of the top of each partition plate 10.
According to the invention, the first mounting plate 20 and the second mounting plate 21 which are uniformly distributed are fixed on the outer wall of the top of the partition plate 10 through screws, the corner at the upper right of the first mounting plate 20 is a toothed oblique cut, the corner at the lower left of the second mounting plate 21 is a toothed oblique cut, when paper pulp flows forwards, the paper pulp impacts the first mounting plate 20 and the second mounting plate 21 to change the flow direction of the paper pulp, meanwhile, the paper pulp can impact the first mounting plate 20 and the second mounting plate 21 continuously to generate bubbles, one side of the first mounting plate 20 and the second mounting plate 21 is toothed, the contact area with the paper pulp is increased, and the large-area generation of bubbles of the paper pulp is facilitated.
According to the invention, supporting plates 7 are fixed on the left side and the right side of the air flotation tank 5 on the outer wall of the top of the air flotation tank 5 through screws, the inner walls of two opposite sides of each supporting plate 7 are rotatably connected with a rotating shaft 26 through bearings, and fishing plates 9 are fixed on the outer wall of the circumference of each rotating shaft 26 and are distributed at equal intervals through screws.
According to the invention, the driven wheel 8 is fixed at the right end of the rotating shaft 26 through a screw, the driving wheel 25 is fixed on the circumferential outer wall of the output shaft of the motor 3 through a screw, the driving wheel 25 and the circumferential outer wall of the driven wheel 8 are sleeved with the transmission belt 2, paper pulp floats to the water surface through the air floatation rear side, the rotating shaft 26 and the salvaging plate 9 rotate to salvage the paper pulp on the water surface and throw the paper pulp forwards into the collecting box 6 for collection, manual operation is not needed, the working efficiency is high, the labor force is saved, and the quick recovery of the paper pulp is.
In the invention, a collecting box 6 is fixed on the front outer wall of the air flotation tank 5 close to the top end through a screw, and a water outlet pipe 4 is arranged on the front outer wall of the air flotation tank 5 close to the bottom end
In this embodiment, compared with embodiment 1, the bottom of the air flotation tank 5 is provided with a second air inlet pipe 23 distributed at equal intervals, the left end of the second air inlet pipe 23 is fixedly connected with a first air inlet pipe 22, the circumferential outer wall of the second air inlet pipe 23 is provided with a second air outlet pipe 24 distributed at equal intervals, and one end of the first air inlet pipe 22 is connected with the output end of the air pump 17.
When the paper pulp is recycled, gas is introduced into the first air inlet pipe 22, enters the second air inlet pipe 23, is discharged from the second air outlet pipe 24, moves upwards to form bubbles, the air flotation efficiency is increased, and the paper pulp recycling is accelerated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a paper pulp is retrieved with combination air supporting device, includes air supporting pond (5), the left and right sides inner wall in air supporting pond (5) is close to the rear side and is connected with (mixing) shaft (12) through the bearing rotation, and the circumference outer wall of (mixing) shaft (12) is fixed with first stirring leaf (13) and second stirring leaf (14) respectively, its characterized in that, first stirring leaf (13) and second stirring leaf (14) equidistance distribute at the circumference outer wall of (mixing) shaft (12), and first stirring leaf (13) and second stirring leaf (14) size the same, bilateral symmetry, the both sides outer wall of first stirring leaf (13) and second stirring leaf (14) all is provided with evenly distributed's first outlet duct (19), and first outlet duct (19) are linked together through the inside of first stirring leaf (13) and second stirring leaf (14) with (mixing) (mixing) shaft (12).
2. The combined air flotation device for pulp recovery as recited in claim 1, wherein an air pump (17) is fixed to the left outer wall of the air flotation tank (5), an air inflation tube (18) is fixedly connected to an output end of the air pump (17), and one end of the air inflation tube (18) is communicated with the inside of the stirring shaft (12).
3. The combined air flotation device for pulp recovery as recited in claim 1, wherein a motor (3) is fixed on the right outer wall of the air flotation tank (5), and an output shaft of the motor (3) is connected with the stirring shaft (12) through a coupling.
4. The combined air flotation device for pulp recovery according to claim 1, wherein the rear outer wall of the air flotation tank (5) is provided with water inlet holes (15) distributed at equal intervals, the rear outer wall of each water inlet hole (15) is fixed with a water inlet pipe (1), the top outer wall of each water inlet pipe (1) is provided with a rectangular groove, and the inner wall of each rectangular groove is spliced with a screen plate (16).
5. The combined air flotation device for pulp recovery according to claim 1, characterized in that the inner walls of the left and right sides of the air flotation tank (5) are fixed with partition plates (10) which are equidistantly distributed, and the outer wall of the top of the partition plates (10) is provided with water permeable holes (11) which are uniformly distributed.
6. The combined air flotation device for pulp recovery as recited in claim 5, characterized in that the top outer wall of the partition plate (10) is fixed with a first mounting plate (20) and a second mounting plate (21) which are uniformly distributed, and the upper right corner of the first mounting plate (20) is a toothed oblique notch, and the lower left corner of the second mounting plate (21) is a toothed oblique notch.
7. The combined air flotation device for pulp recovery according to claim 1, wherein the top outer wall of the air flotation tank (5) is fixed with support plates (7) at the left and right sides of the air flotation tank (5), the inner walls at the two opposite sides of the support plates (7) are rotatably connected with rotating shafts (26) through bearings, and the circumferential outer wall of the rotating shafts (26) is fixed with fishing plates (9) which are distributed at equal intervals.
8. The combined air flotation device for pulp recovery as recited in claim 7, wherein a driven wheel (8) is fixed at the right end of the rotating shaft (26), a driving wheel (25) is fixed on the circumferential outer wall of the output shaft of the motor (3), and a transmission belt (2) is sleeved on the circumferential outer walls of the driving wheel (25) and the driven wheel (8).
9. The combined air flotation device for pulp recovery as recited in claim 1, characterized in that a collection tank (6) is fixed to the front outer wall of the air flotation tank (5) near the top end, and a water outlet pipe (4) is provided to the front outer wall of the air flotation tank (5) near the bottom end.
10. The combined air flotation device for pulp recovery as recited in claim 1, wherein the bottom of the air flotation tank (5) is provided with second air inlet pipes (23) distributed at equal intervals, the left ends of the second air inlet pipes (23) are fixedly connected with first air inlet pipes (22), the circumferential outer wall of the second air inlet pipes (23) is provided with second air outlet pipes (24) distributed at equal intervals, and one ends of the first air inlet pipes (22) are connected with the output end of the air pump (17).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023077583A1 (en) * | 2021-11-05 | 2023-05-11 | 湖南新源发制品股份有限公司 | Waste water pretreatment device for hair product, and use method thereof |
| CN117361666A (en) * | 2023-12-08 | 2024-01-09 | 山东印迹美誉食品科技有限公司 | Food processing sewage treatment equipment and treatment method |
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