Pneumatic stirring device of air floatation adjusting tank

Abstract

The utility model relates to the technical field of water treatment equipment, in particular to a pneumatic stirring device of an air floatation adjusting tank, which comprises a tank body and a tank cover, one end of the air inlet pipe penetrates through the tank cover and is communicated and connected with one end of the flow dividing pipe, air can be conveyed into the flow dividing pipe through the air pump, the multiple air outlet pipes are evenly installed at the bottom end of the flow dividing pipe, the flow dividing pipe is arranged to be in a mosquito-repellent incense shape, and the contact position of bubbles generated by the air outlet pipes and waste water can be enlarged; through a reinforcing rod and a connecting rod between an air inlet pipe and a flow dividing pipe, the stability of the flow dividing pipe during working can be improved, through a dust filtering net at the end, close to an air inlet, of a purifying box, impurities in air can be preliminarily filtered, and through a dust blocking plate and an adsorption layer in the purifying box, the air purifying effect is improved. Filtered air can be filtered, adsorbed and purified again, so that air carrying impurities is prevented from entering the treatment tank body, and the wastewater treatment effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, specifically to a pneumatic stirring device for an air flotation adjustment tank. Background Technology

[0002] Air flotation equipment is a type of water treatment equipment that introduces or generates a large number of microbubbles into water, causing air to adhere to suspended particles in the form of highly dispersed microbubbles, resulting in a density less than that of water. Utilizing the principle of buoyancy, these particles float on the water surface, thus achieving solid-liquid separation. When treating industrial wastewater in an air flotation adjustment tank, the flocculation (coagulation) process is one of the most commonly used and crucial steps. Stirring during flocculation can improve the wastewater treatment effect.

[0003] In existing technologies, flocculation methods include mechanical flocculation and pneumatic flocculation. Pneumatic flocculation can utilize the shear force generated by the rising bubbles and the eddies formed by the density difference as the driving force for the coagulation reaction. It has the advantages of simple control, low operation and maintenance workload, and saving on reagents. Its wastewater treatment effect is better than mechanical flocculation. However, the contact position between the bubbles generated by the air outlet pipe of the existing pneumatic flocculation device and the wastewater is limited, and there is a lack of air filtration and purification devices, which causes air carrying impurities to enter the treatment tank, affecting the wastewater treatment effect. Utility Model Content

[0004] The purpose of this invention is to provide a pneumatic stirring device for an air flotation adjustment tank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic stirring device for an air flotation adjustment tank, comprising: a tank body and a tank cover, an air pump installed at the top of a sewage inlet pipe, a purification box provided at one end of the air pump, an air inlet pipe connected to the other end of the air pump, and one end of the air inlet pipe penetrating the tank cover and inserted into the interior of the tank body.

[0006] The end of the air inlet pipe near the bottom wall of the tank is connected to a diversion pipe. Several air outlet pipes are evenly installed at the bottom edge of the diversion pipe. A connecting rod is connected between the top outer wall of the diversion pipe and two reinforcing rods are installed between the two ends of the connecting rod and the air inlet pipe.

[0007] The purification box has an air inlet at the end away from the air pump. A dust filter is installed at one end of the air inlet, and an adsorption layer is installed inside the other end of the air inlet. Two dust baffles are alternately arranged between the air inlet and the adsorption layer.

[0008] Preferably, the tank cover is fixedly installed on the top of the tank body, and a sewage inlet pipe is connected to the bottom of one end of the tank body.

[0009] Preferably, the top of the canister lid is fixedly mounted on a mounting platform near the top of the air pump, and the bottom of both the air pump and the purification box are fixedly mounted on the mounting platform.

[0010] Preferably, a gas valve is installed at the end of the air inlet pipe near the air pump, and a flow meter is installed on one side of the gas valve.

[0011] Preferably, the diverter is shaped like a mosquito coil, with one end of the diverter near the bottom of the intake pipe fixedly installed, and the other end of the diverter completely blocked without an opening. Each outlet pipe is inclined and connected to the diverter.

[0012] Preferably, the outer wall of the connecting rod is fixedly connected to the outer wall of the diverter pipe, and the top of both ends of the connecting rod is fixedly connected to the adjacent reinforcing rod. The top ends of the two reinforcing rods are fixedly installed on the outer wall of the intake pipe.

[0013] Preferably, mounting bolts are provided at each of the four corners of the dust filter, and the dust filter is fixedly installed at the end of the purification box near the air inlet by the four mounting bolts.

[0014] Preferably, the two dust baffles are inclined plates, and the ends of the two dust baffles that are far apart from each other are respectively fixedly installed on the inner top wall and inner bottom wall of the purification box.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention connects one end of an air inlet pipe through the tank cover and connects it to one end of a distribution pipe. An air pump delivers gas to the distribution pipe. Several air outlet pipes are evenly installed at the bottom of the distribution pipe, which is shaped like a mosquito coil. This increases the contact area between the air bubbles and wastewater, allowing the wastewater in the tank to come into contact with the bubbles as much as possible. Reinforcing and connecting rods between the air inlet and distribution pipes improve the stability of the distribution pipe during operation. A dust filter near the air inlet of the purification chamber provides initial filtration of impurities in the air. The dust baffle and adsorption layer inside the purification chamber further filtration and adsorption purify the filtered air, preventing air carrying impurities from entering the treatment tank and thus improving the wastewater treatment effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of a partial structure of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the purification box structure of this utility model.

[0021] In the diagram: 1. Tank body; 2. Sewage inlet pipe; 3. Tank cover; 4. Air inlet pipe; 5. Flow meter; 6. Gas valve; 7. Diverter pipe; 8. Air outlet pipe; 9. Air pump; 10. Mounting platform; 11. Purification box; 12. Air inlet; 13. Adsorption layer; 14. Dust baffle; 15. Dust filter screen; 16. Mounting bolts; 17. Connecting rod; 18. Reinforcing rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figures 1 to 4 This utility model provides a technical solution: a pneumatic stirring device for an air flotation adjustment tank, comprising: a tank body 1 and a tank cover 3; an air pump 9 is installed at the top of a wastewater inlet pipe 2; a purification tank 11 is installed at one end of the air pump 9; and an air inlet pipe 4 is connected to the other end of the air pump 9. One end of the air inlet pipe 4 passes through the tank cover 3 and is inserted into the interior of the tank body 1; the tank cover 3 is fixedly installed at the top of the tank body 1, and the bottom of one end of the tank body 1 is connected to the wastewater inlet pipe 2. A mounting platform 10 is fixedly installed on the top of the tank cover 3 near the air pump 9, and the bottom ends of the air pump 9 and the purification tank 11 are both fixedly installed on the mounting platform 10. A gas valve 6 is installed on the end of the air inlet pipe 4 near the air pump 9, and a flow meter 5 is installed on one side of the gas valve 6, which facilitates the adjustment and detection of gas flow according to actual wastewater treatment needs, thereby improving the wastewater treatment effect.

[0024] One end of the air inlet pipe 4, near the bottom wall of the tank 1, is connected to a diverter pipe 7. Several outlet pipes 8 are evenly installed at the bottom edge of the diverter pipe 7. A connecting rod 17 connects the top outer wall of the diverter pipe 7. Two reinforcing rods 18 are installed between the two ends of the connecting rod 17 and the air inlet pipe 4. The diverter pipe 7 is coiled, with one end fixedly installed at the bottom of the air inlet pipe 4. The other end of the diverter pipe 7 is sealed and has no opening. Each outlet pipe 8 is inclined and connected to the diverter pipe 7, and each outlet pipe 8 is inclined towards the inner side wall of the tank 1 to improve the uniformity of bubble distribution. The outer wall of the connecting rod 17 is fixedly connected to the outer wall of the diverter pipe 7. The top ends of both ends of the connecting rod 17 are fixedly connected to adjacent reinforcing rods 18. The top ends of the two reinforcing rods 18 are fixedly installed on the outer wall of the air inlet pipe 4, which improves the stability of the diverter pipe 7 during operation.

[0025] An air inlet 12 is located at the end of the purification chamber 11 furthest from the air pump 9. A dust filter 15 is installed at one end of the air inlet 12, and an adsorption layer 13 is installed inside the other end of the air inlet 12. Two dust baffles 14 are alternately arranged between the air inlet 12 and the adsorption layer 13. Mounting bolts 16 are installed at each of the four corners of the dust filter 15, and the dust filter 15 is fixedly installed on the end of the purification chamber 11 near the air inlet 12 by the four mounting bolts 16, facilitating the installation and removal of the dust filter 15. The two dust baffles 14 are relatively inclined, and their ends, furthest from each other, are fixedly installed on the inner top and bottom walls of the purification chamber 11, respectively, to further block and filter smaller impurities.

[0026] When this device is working, by passing one end of the air inlet pipe 4 through the tank cover 3 and connecting it to one end of the diversion pipe 7, gas can be delivered to the diversion pipe 7 by the air pump 9. By evenly installing several air outlet pipes 8 at the bottom of the diversion pipe 7 and setting the diversion pipe 7 in the shape of a mosquito coil, the contact position between the bubbles generated by the air outlet pipes 8 and the wastewater can be increased, so that the wastewater in the tank 1 can come into contact with the bubbles as much as possible. The reinforcing rod 18 and connecting rod 17 between the air inlet pipe 4 and the diversion pipe 7 can improve the stability of the diversion pipe 7 during operation. The dust filter 15 at the end of the purification box 11 near the air inlet 12 can perform preliminary filtration of impurities in the air. The dust baffle 14 and adsorption layer 13 inside the purification box 11 can further filter and adsorb the filtered air to prevent air carrying impurities from entering the treatment tank 1, thereby improving the treatment effect of wastewater.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic stirring device for an air flotation adjusting tank, comprising: The tank body (1) and the tank cover (3) are characterized in that: an air pump (9) is installed at the top of the sewage inlet pipe (2), a purification box (11) is provided at one end of the air pump (9), and an air inlet pipe (4) is connected to the other end of the air pump (9). One end of the air inlet pipe (4) passes through the tank cover (3) and is inserted into the interior of the tank body (1). The inlet pipe (4) is connected to a diversion pipe (7) at one end near the bottom wall of the tank (1). Several outlet pipes (8) are evenly installed at the bottom edge of the diversion pipe (7). A connecting rod (17) is connected between the top outer wall of the diversion pipe (7). Two reinforcing rods (18) are installed between the two ends of the connecting rod (17) and the inlet pipe (4). The purification box (11) has an air inlet (12) at the end away from the air pump (9). A dust filter (15) is installed at one end of the air inlet (12), and an adsorption layer (13) is provided inside the other end of the air inlet (12). Two dust baffles (14) are alternately arranged between the air inlet (12) and the adsorption layer (13).

2. The pneumatic stirring device for an air flotation adjusting tank according to claim 1, characterized in that: The tank cover (3) is fixedly installed on the top of the tank body (1), and a sewage inlet pipe (2) is connected to the bottom of one end of the tank body (1).

3. The pneumatic stirring device for an air flotation adjusting tank according to claim 1, characterized in that: The top of the canister lid (3) near the top of the air pump (9) is fixedly mounted on the mounting platform (10), and the bottom of the air pump (9) and the purification box (11) are both fixedly mounted on the mounting platform (10).

4. The pneumatic stirring device for an air flotation adjusting tank according to claim 1, characterized in that: A gas valve (6) is installed at one end of the air inlet pipe (4) near the air pump (9), and a flow meter (5) is installed on one side of the gas valve (6).

5. The pneumatic stirring device for an air flotation adjusting tank according to claim 1, characterized in that: The diverter tube (7) is shaped like a mosquito coil. One end of the diverter tube (7) near the air inlet tube (4) is fixedly installed at the bottom of the air inlet tube (4). The other end of the diverter tube (7) is blocked and has no opening. Each air outlet tube (8) is inclined and connected to the diverter tube (7).

6. The pneumatic stirring device for an air flotation adjusting tank according to claim 1, characterized in that: The outer wall of the connecting rod (17) is fixedly connected to the outer wall of the diversion pipe (7), and the top of both ends of the connecting rod (17) is fixedly connected to the adjacent reinforcing rod (18). The top ends of the two reinforcing rods (18) are fixedly installed on the outer wall of the air intake pipe (4).

7. The pneumatic stirring device for an air flotation adjusting tank according to claim 1, characterized in that: The dust filter (15) is provided with mounting bolts (16) at each of the four corners. The dust filter (15) is fixedly installed on the end of the purification box (11) near the air inlet (12) by the four mounting bolts (16).

8. The pneumatic stirring device for an air flotation adjusting tank according to claim 1, characterized in that: The two dust baffles (14) are relatively inclined, and the ends of the two dust baffles (14) that are far apart from each other are respectively fixedly installed on the inner top wall and inner bottom wall of the purification box (11).

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