Vertical dissolved air tank device

Abstract

The invention relates to the technical field of sewage treatment, in particular to a vertical air dissolving tank device which comprises an air dissolving tank, a pressurizing assembly is arranged at the top of the air dissolving tank, a first partition plate and a second partition plate are connected into the air dissolving tank, a first air dissolving chamber is formed between the pressurizing assembly and the first partition plate, and a second air dissolving chamber is formed between the first partition plate and the second partition plate. A water inlet pipe and an air inlet pipe are arranged on the air dissolving box, the water inlet pipe is located at the upper end in the first air dissolving chamber, the air inlet pipe is located at the lower end in the first air dissolving chamber, a stirring mechanism is arranged in the first air dissolving chamber, a fixing frame is connected to the second partition plate, and an aeration pipe is connected to the fixing frame; a plurality of aeration openings are formed in the aeration pipe, an extraction opening is formed in the air dissolving box, an electromagnetic valve, a suction pump and a booster pump are sequentially connected between the extraction opening and the aeration pipe, a corrugated plate is connected to the fixing frame, and a water outlet is formed in the bottom of the air dissolving box. The air dissolving effect of the air dissolving device is improved, and meanwhile the cost is reduced.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment technology, in particular to a vertical dissolved air tank device. Background Art

[0002] Flotation is a method for treating industrial wastewater. It introduces tiny bubbles into the water, adsorbs the tiny impurities in the treated water to the bubbles, forms flocs that float with the bubbles to form scum, and then scrapes them off by a scraper to remove the suspended impurities in the water. In the flotation system, there is an air dissolving tank, which is an important device for increasing the solubility of gas in wastewater. The wastewater in the air dissolving tank will flow back to the flotation tank. When the wastewater is sprayed out, the gas originally dissolved in the water is released to form numerous tiny bubbles.

[0003] The solubility of the gas in the gas dissolving tank directly affects the treatment effect of the wastewater. In order to improve the gas dissolving effect, the existing Chinese patent with the announcement number CN205258051U discloses "a multi-stage gas dissolving tank", which is provided with a spray type gas dissolving tank and a jet type gas dissolving tank connected in series. First, the gas and water are preliminarily mixed in the spray type gas dissolving tank, and then mixed again after passing through the ejector outside the jet type gas dissolving tank under the action of a high-pressure water pump, so that the air and water are dissolved more fully, so as to provide more efficient and stable gas-dissolving water.

[0004] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: the cost of setting up two gas dissolving tanks in this way is relatively high. Secondly, the gas and water are mixed twice, and when entering the jet gas dissolving tank, pressure loss will inevitably occur in the connecting pipeline, causing part of the gas to be released from the wastewater, especially at the outlet end of the jet contraction part of the ejector, where the pressure loss will be the greatest, resulting in this method actually having a poor gas dissolving effect. Summary of the invention

[0005] In order to improve the gas dissolving effect of the gas dissolving device while reducing the cost, the present application provides a vertical gas dissolving tank device.

[0006] The vertical dissolved gas tank device provided in this application adopts the following technical solution:

[0007] A vertical gas dissolving tank device comprises a gas dissolving box, a pressurizing assembly is arranged on the top of the gas dissolving box, a first partition and a second partition are connected in the gas dissolving box, the pressurizing assembly, the first partition and the second partition are arranged in sequence from top to bottom in the gas dissolving box, a first gas dissolving chamber is formed between the pressurizing assembly and the first partition, a second gas dissolving chamber is formed between the first partition and the second partition, the first partition and the second partition are both arranged in a direction perpendicular to the axis of the gas dissolving box, a plurality of through holes for dissolved gas water to pass through are opened on the first partition and the second partition, and a one-way valve is installed in the through hole, a water inlet pipe and an air inlet pipe are arranged on the gas dissolving box, the water inlet pipe is located at the upper end of the first gas dissolving chamber, and the air inlet pipe is located at the upper end of the first gas dissolving chamber. At the lower inner end of the first air dissolving chamber, a stirring mechanism for improving the air dissolving efficiency is provided in the air dissolving box, and the stirring mechanism is located in the first air dissolving chamber. A fixed frame is connected to the second partition plate, and the fixed frame fits the inner wall of the air dissolving box. An aeration pipe is connected to the fixed frame, and the aeration pipe is arranged in a keel shape. A plurality of aeration ports are provided on the aeration pipe. An air suction port is provided on the air dissolving box, and an electromagnetic valve, a suction pump and a booster pump are connected to the air suction port and the aeration pipe in sequence through a pipeline. A corrugated plate is connected to the fixed frame, and the corrugated plate extends into the second air dissolving chamber along a direction parallel to the axis of the air dissolving box. The corrugated plate and the transverse aeration pipe are arranged at intervals, and a water outlet is provided at the bottom of the air dissolving box.

[0008] Preferably, the pressurizing assembly includes a hydraulic cylinder and a push plate, a mounting frame is connected to the top of the air dissolving box, the hydraulic cylinder is connected to the mounting frame, the axis of the piston rod of the hydraulic cylinder is colinear with the axis of the air dissolving box, the piston rod of the hydraulic cylinder is passed through the air dissolving box, the push plate is connected to the end of the piston rod of the hydraulic cylinder located in the air dissolving box, and the push plate is arranged in a direction perpendicular to the piston rod of the hydraulic cylinder.

[0009] Preferably, a linear bearing is connected to the aeration box, and a piston rod of the hydraulic cylinder is inserted into the linear bearing.

[0010] Preferably, the stirring mechanism includes a first bearing seat, a second bearing seat, a rotating shaft, a stirring blade and a motor, the first bearing seat and the second bearing seat are connected in the aeration box, the first bearing seat and the second bearing seat are respectively arranged on two opposite side walls of the aeration box, the rotating shaft is connected between the first bearing seat and the second bearing seat, the rotating shaft is arranged in a direction perpendicular to the axis of the aeration box, the stirring blade is connected to the rotating shaft, and a number of the stirring blades are evenly arranged along the length direction of the rotating shaft, the motor is connected to the outer wall of the aeration box, and the output shaft of the motor is coaxially connected to the rotating shaft through a coupling.

[0011] Preferably, a pressure gauge is connected to the gas dissolving box, and the press is located at the upper end of the first gas dissolving chamber, and the press is used to detect the pressure in the first gas dissolving chamber.

[0012] Preferably, the air dissolving box is connected to an automatic exhaust valve, the automatic exhaust valve is located at the upper end of the first air dissolving chamber, and the automatic exhaust valve is used to exhaust excess air in the first air dissolving chamber.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] The present invention provides a vertical air dissolving tank device. A first air dissolving chamber and a second air dissolving chamber are arranged in an air dissolving box. Sewage and compressed air are introduced into the first air dissolving chamber. A stirring mechanism is used to make a part of the compressed air quickly form dissolved air with the sewage. The dissolved air water flows into the second air dissolving chamber through a one-way valve of a first partition plate. The other part of the air that is not dissolved in the sewage rises and separates from the sewage. At the same time, a pressurizing component is used to compress the part of the air to increase its pressure so that part of the air is dissolved in the sewage. Then, the solenoid valve is opened, and the remaining air in the first air dissolving chamber is sucked and pressurized by a suction pump and a booster pump to be introduced into the second air dissolving chamber, and discharged through an aeration port on an aeration pipe. A corrugated plate is used to increase the contact area with the dissolved air water, and a second air dissolving is performed to improve the air dissolving effect. Finally, the dissolved air water enters and exits the bottom of the air dissolving box through the one-way valve of the second partition plate and is discharged from the water outlet, thereby achieving the effect of improving the air dissolving effect of the air dissolving device while reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a vertical dissolved gas tank device in an embodiment of the present application;

[0016] Figure 2 It is a schematic diagram for reflecting the internal structure of the gas dissolving box in the embodiment of the present application;

[0017] Figure 3 is a schematic diagram of an aeration tube in an embodiment of the present application;

[0018] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. aeration box; 11. first partition; 12. second partition; 13. water inlet pipe; 14. air inlet pipe; 15. air suction port; 16. linear bearing; 17. pressure gauge; 18. automatic exhaust valve; 19. water outlet; 2. pressurizing assembly; 21. hydraulic cylinder; 22. push plate; 3. one-way valve; 4. stirring mechanism; 41. first bearing seat; 42. second bearing seat; 43. rotating shaft; 44. stirring blade; 45. motor; 5. fixing frame; 51. aeration pipe; 511. aeration port; 52. corrugated plate; 6. solenoid valve; 7. suction pump; 8. booster pump. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the scheme of the present invention, the scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiment is only an embodiment of a part of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two original components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The present application embodiment discloses a vertical dissolved gas tank device. Figure 1 , Figure 2 , Figure 3 and Figure 4The vertical dissolved air tank device comprises an dissolved air box 1, a pressurizing component 2 is provided on the top of the dissolved air box 1, a first partition 11 and a second partition 12 are connected in the dissolved air box 1, the pressurizing component 2, the first partition 11 and the second partition 12 are arranged in sequence from top to bottom in the dissolved air box 1, a first dissolved air chamber is formed between the pressurizing component 2 and the first partition 11, a second dissolved air chamber is formed between the first partition 11 and the second partition 12, the first partition 11 and the second partition 12 are arranged in a direction perpendicular to the axis of the dissolved air box 1, a plurality of through holes for dissolved air water to pass through are opened on the first partition 11 and the second partition 12, and a one-way valve 3 is installed in the through hole, a water inlet pipe 13 and an air inlet pipe 14 are provided on the dissolved air box 1, the water inlet pipe 13 is located at the upper end of the first dissolved air chamber, sewage can be introduced into the first dissolved air chamber through the water inlet pipe 13, and the air inlet pipe 14 is located At the lower end of the first gas dissolving chamber, compressed gas can be introduced into the first gas dissolving chamber through the air inlet pipe 14. A stirring mechanism 4 for improving the gas dissolving efficiency is provided in the gas dissolving box 1. The stirring mechanism 4 is located in the first gas dissolving chamber. A fixed frame 5 is connected to the second partition plate 12. The fixed frame 5 fits the inner wall of the gas dissolving box 1. An aeration pipe 51 is connected to the fixed frame 5. The aeration pipe 51 is arranged in a keel shape. A plurality of aeration ports 511 are arranged on the aeration pipe 51. An air suction port 15 is provided on the gas dissolving box 1. A solenoid valve 6, a suction pump 7 and a booster pump 8 are connected between the air suction port 15 and the aeration pipe 51 in sequence through a pipeline. A corrugated plate 52 is connected to the fixed frame 5. The corrugated plate 52 extends into the second gas dissolving chamber along a direction parallel to the axis of the gas dissolving box 1. The corrugated plate 52 and the transverse aeration pipe 51 are arranged at intervals. A water outlet 19 is provided at the bottom of the gas dissolving box 1.

[0023] The pressurizing component 2 includes a hydraulic cylinder 21 and a push plate 22. A mounting frame is connected to the top of the dissolved air box 1. The hydraulic cylinder 21 is connected to the mounting frame. The axis of the piston rod of the hydraulic cylinder 21 is colinear with the axis of the dissolved air box 1. The piston rod of the hydraulic cylinder 21 is inserted into the dissolved air box 1. The push plate 22 is connected to the end of the piston rod of the hydraulic cylinder 21 located in the dissolved air box 1. The push plate 22 is arranged in a direction perpendicular to the piston rod of the hydraulic cylinder 21.

[0024] A linear bearing 16 is connected to the air dissolving box 1, and a piston rod of the hydraulic cylinder 21 is inserted into the linear bearing 16. The linear bearing 16 is helpful to improve the stability of the piston rod of the hydraulic cylinder 21 during movement.

[0025] The stirring mechanism 4 includes a first bearing seat 41, a second bearing seat 42, a rotating shaft 43, a stirring blade 44 and a motor 45. The first bearing seat 41 and the second bearing seat 42 are connected to the gas dissolving box 1, and the first bearing seat 41 and the second bearing seat 42 are respectively arranged on two opposite side walls of the gas dissolving box 1. The rotating shaft 43 is connected between the first bearing seat 41 and the second bearing seat 42. The rotating shaft 43 is arranged in a direction perpendicular to the axis of the gas dissolving box 1. The stirring blade 44 is connected to the rotating shaft 43. There are several stirring blades 44 evenly arranged along the length direction of the rotating shaft 43. The motor 45 is connected to the outer wall of the gas dissolving box 1, and the output shaft of the motor 45 is coaxially connected to the rotating shaft 43 through a coupling.

[0026] The gas dissolving box 1 is connected with a pressure gauge 17, and the pressure machine is located at the upper end of the first gas dissolving chamber, and the pressure machine is used to detect the pressure in the first gas dissolving chamber.

[0027] The air dissolving box 1 is connected with an automatic exhaust valve 18, which is located at the upper end of the first air dissolving chamber. The automatic exhaust valve 18 is used to exhaust excess air in the first air dissolving chamber.

[0028] The implementation principle of a vertical air dissolving tank device in the embodiment of the present application is as follows: when dissolving air, sewage and compressed air are introduced into the first air dissolving chamber through the water inlet pipe 13 and the first air inlet, and the motor 45 drives the rotating shaft 43 and the stirring blade 44 to rotate so that a part of the compressed air quickly forms dissolved air water with the sewage, and the dissolved air water flows into the second air dissolving chamber through the one-way valve 3 of the first partition plate 11, and the other part of the air that has not dissolved in the sewage rises and separates from the sewage. At the same time, the hydraulic cylinder 21 pushes the push plate 22 downward, and by reducing the space of the first air dissolving chamber, the pressure of this part of the air is increased so that part of it can be dissolved in the sewage. Then the solenoid valve 6 is opened, and the remaining air in the first air dissolving chamber is sucked and pressurized by the suction pump 7 and the booster pump 8 to be introduced into the second air dissolving chamber, and discharged through the aeration port 511 on the aeration pipe 51, and the corrugated plate 52 is cooperated to increase the contact area with the dissolved air water in the second air dissolving chamber, and the second air dissolving is carried out.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A vertical dissolved gas tank device, characterized in that: The invention comprises an air dissolving box (1), wherein a pressurizing component (2) is arranged on the top of the air dissolving box (1), a first partition plate (11) and a second partition plate (12) are connected inside the air dissolving box (1), the pressurizing component (2), the first partition plate (11) and the second partition plate (12) are arranged in sequence from top to bottom inside the air dissolving box (1), a first air dissolving chamber is formed between the pressurizing component (2) and the first partition plate (11), and a second air dissolving chamber is formed between the first partition plate (11) and the second partition plate (12). The gas dissolving chamber, the first partition plate (11) and the second partition plate (12) are both arranged in a direction perpendicular to the axis of the gas dissolving box (1), the first partition plate (11) and the second partition plate (12) are both provided with a plurality of through holes for the dissolved gas water to pass through, and a one-way valve (3) is installed in the through holes, the gas dissolving box (1) is provided with a water inlet pipe (13) and an air inlet pipe (14), the water inlet pipe (13) is located at the upper end of the first gas dissolving chamber, and the air inlet pipe (14) is located at the lower end of the first gas dissolving chamber The aeration box (1) is provided with a stirring mechanism (4) for improving the aeration efficiency, the stirring mechanism (4) is located in the first aeration chamber, the second partition (12) is connected to a fixing frame (5), the fixing frame (5) is attached to the inner wall of the aeration box (1), the fixing frame (5) is connected to an aeration pipe (51), the aeration pipe (51) is arranged in a keel shape, and the aeration pipe (51) is provided with a plurality of aeration ports (511), the aeration box (1) is provided with a plurality of aeration ports (511), and the aeration box (1) is provided with a plurality of aeration ports (511). An air suction port (15) is provided, and a solenoid valve (6), a suction pump (7) and a booster pump (8) are sequentially connected between the air suction port (15) and the aeration pipe (51) through a pipeline. A corrugated plate (52) is connected to the fixed frame (5), and the corrugated plate (52) extends into the second aeration chamber in a direction parallel to the axis of the aeration box (1). The corrugated plate (52) and the transverse aeration pipe (51) are spaced apart, and a water outlet (19) is provided at the bottom of the aeration box (1).

2. A vertical dissolved gas tank device according to claim 1, characterized in that: The pressurizing component (2) comprises a hydraulic cylinder (21) and a push plate (22); a mounting frame is connected to the top of the air dissolving box (1); the hydraulic cylinder (21) is connected to the mounting frame; the axis of the piston rod of the hydraulic cylinder (21) is colinear with the axis of the air dissolving box (1); the piston rod of the hydraulic cylinder (21) is inserted into the air dissolving box (1); the push plate (22) is connected to the end of the piston rod of the hydraulic cylinder (21) located in the air dissolving box (1); and the push plate (22) is arranged in a direction perpendicular to the piston rod of the hydraulic cylinder (21).

3. A vertical dissolved gas tank device according to claim 2, characterized in that: The aeration box (1) is connected to a linear bearing (16), and the piston rod of the hydraulic cylinder (21) is inserted into the linear bearing (16).

4. A vertical dissolved gas tank device according to claim 1, characterized in that: The stirring mechanism (4) comprises a first bearing seat (41), a second bearing seat (42), a rotating shaft (43), a stirring blade (44) and a motor (45); the first bearing seat (41) and the second bearing seat (42) are connected to the inside of the aeration box (1); the first bearing seat (41) and the second bearing seat (42) are respectively arranged on two opposite side walls of the aeration box (1); the rotating shaft (43) is connected between the first bearing seat (41) and the second bearing seat (42); the rotating shaft (43) is arranged in a direction perpendicular to the axis of the aeration box (1); the stirring blade (44) is connected to the rotating shaft (43); a plurality of stirring blades (44) are evenly arranged along the length direction of the rotating shaft (43); the motor (45) is connected to the outer wall of the aeration box (1); and the output shaft of the motor (45) is coaxially connected to the rotating shaft (43) through a coupling.

5. A vertical dissolved gas tank device according to claim 1, characterized in that: The gas dissolving box (1) is connected to a pressure gauge (17), and the press is located at the upper end of the first gas dissolving chamber. The press is used to detect the pressure in the first gas dissolving chamber.

6. A vertical dissolved gas tank device according to claim 1, characterized in that: The air dissolving box (1) is connected to an automatic exhaust valve (18), which is located at the upper end of the first air dissolving chamber. The automatic exhaust valve (18) is used to exhaust excess air in the first air dissolving chamber.

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