Oily wastewater separation equipment
By introducing hot air flow and diversion structure into the floating pool, the problem of decreasing bubble generation speed and stability in winter is solved, the separation efficiency of oily wastewater and the cleanliness of equipment are improved, and the treatment effect is ensured.
Patent Information
- Application Number
- CN202422240278.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In winter environment, the bubble generation speed and stability of the oil-containing wastewater separation equipment decrease, resulting in poor treatment effect.
The hot air pump and deflector are installed in the floating pool to increase the number of bubbles by discharged into the hot air flow inside the floating pool, and use the deflector and thermal block to improve the stability of the bubbles and the adhesion effect to the suspended substance. At the same time, the equipment is kept clean by cleaning the barrel and hitting the ball, and the protective plate prevents the scum from splashing and the baffle splits the large bubbles.
Effectively increase the number and stability of bubbles in winter environments, improve the separation efficiency of suspended matter and grease, keep the equipment clean, prevent pollution and wear, and enhance the treatment effect.
Smart Images
Figure CN223175960U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wastewater treatment, and specifically relates to an oil-containing wastewater separation device. Background Art
[0002] Oil-containing wastewater is wastewater containing oil substances generated during industrial production. The sources of oil-containing wastewater are very extensive, and oil-containing wastewater causes serious harm to the environment.
[0003] In the prior art, in order to treat oil-containing wastewater, various methods are adopted. Among them, the wastewater containing oil is separated and treated through a flotation tank. The flotation tank generally consists of three parts: a flocculation chamber, a bubble contact chamber, and a separation chamber. By adding an appropriate flocculant, the suspended solids and colloidal particles in the water are adsorbed and bonded to each other to form larger flocs. A large number of bubbles attach to the suspended solids and lift them to the surface of the flotation tank, so that the scum is separated from the water through a scraper.
[0004] In a winter environment, the temperature in the water is relatively low. When separating oil-containing wastewater, the generation speed and stability of bubbles in the water decrease, which easily causes the bubbles to not easily adhere to the suspended solids and oil in the wastewater, resulting in a decrease in the treatment effect of oil-containing wastewater.
[0005] Therefore, the utility model provides an oil-containing wastewater separation device. Content of the Utility Model
[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.
[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: An oily wastewater separation device described in the present utility model includes a flotation tank; a flocculation chamber is provided in the middle of the flotation tank; a bubble contact chamber is provided in the middle of the flotation tank; two gas dissolving pipes are installed in the middle of the bubble contact chamber; a separation chamber is provided in the middle of the flotation tank; a scum trough is provided in the middle of the flotation tank; the scum trough is provided on the side away from the flocculation chamber; a plurality of slag scraping plates are rotatably connected to the top of the flotation tank; a hot air pump is fixedly connected to the side wall of the flotation tank; an exhaust pipe is fixedly connected to the middle of the hot air pump; the middle of the exhaust pipe penetrates through the side wall of the flotation tank; the flotation tank is fixedly connected to the side wall of the bubble contact chamber; a check valve is fixedly connected to the middle of the exhaust pipe; the check valve is fixedly connected to the end close to the hot air pump; a plurality of exhaust holes are provided in the middle of the exhaust pipe; the plurality of exhaust holes are equidistantly distributed in the middle of the exhaust pipe; two support rods are fixedly connected to the side wall of the bubble contact chamber; a guide plate is fixedly connected to the end of each support rod; the guide plate is inclined; two heat conducting blocks are fixedly connected to the side wall of the bubble contact chamber; through the above structure, by discharging hot air flow into the flotation tank, it can effectively reduce the low temperature of water in winter, resulting in a decrease in the generation speed and stability of bubbles in water, can increase the number of bubbles by increasing the air flow, and can effectively make the bubbles easily adhere to pollutants such as suspended solids and oils in the wastewater.
[0008] Preferably, two sliding grooves are provided at the end of the slag scraping plate; the two sliding grooves are arranged oppositely; a sliding rod is slidably connected to the middle of the sliding groove; a cleaning cylinder is fixedly connected to the end of the sliding rod; a spring is fixedly connected to the end of the sliding groove; the spring is fixedly connected to the outside of the sliding rod; the other end of the spring is fixedly connected to the middle of the cleaning cylinder; through the above structure, the sludge and oil adhered to the side wall of the flotation tank can be effectively removed by the cleaning cylinder, the cleanliness of the flotation tank can be increased, and the sludge and oil accumulated on both sides of the flotation tank for a long time can be effectively reduced.
[0009] Preferably, two hinge shafts are fixedly connected to the side wall of the slag scraping plate; a connecting rod is fixedly connected to the middle of the hinge shaft; a knocking ball is fixedly connected to the end of the connecting rod; through the above structure, by the knocking ball knocking on the side wall of the slag scraping plate, the suspended solids adhered to the surface of the slag scraping plate can be effectively reduced, the accumulation and hardening of the adhered suspended solids on the surface of the slag scraping plate can be effectively reduced, and the loss of part of the elasticity of the slag scraping plate due to the adhered sludge impurities after long-term use can be reduced.
[0010] Preferably, a filter screen is fixedly connected to the end of the guide plate; the other end of the filter screen is fixedly connected to the side wall of the bubble contact chamber; the bubble contact chamber is arc-shaped; through the above structure, the impurities entering the middle of the exhaust pipe can be effectively reduced by the filter screen, and the abrasion caused by the contact between the impurities and the surface of the exhaust pipe can be effectively reduced.
[0011] Preferably, a protective plate is fixedly connected to the top of the air flotation tank; the protective plate is fixedly connected to the top of the slag scraping plate; two collection boxes are fixedly connected to the side wall of the protective plate; the two collection boxes are arranged oppositely; through the above structure, the protective plate can effectively prevent the slag scraping plate from splashing the floating slag out of the air flotation tank when scraping and rotating the floating slag, effectively reducing the problem of environmental pollution around the air flotation tank, and can effectively prevent foreign objects from entering the inside of the air flotation tank.
[0012] Preferably, multiple groups of baffles are fixedly connected to the middle of the dissolved gas pipe; each group of baffles is arranged oppositely; the baffles are inclined; through the above structure, the baffles can effectively break the large bubbles, splitting the large bubbles into smaller bubbles, which can quickly contact the liquid and dissolve.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. For the oil-containing wastewater separation equipment of the present utility model, by discharging the hot air flow into the inside of the air flotation tank, it can effectively reduce the low water temperature in winter, resulting in a decrease in the generation speed and stability of bubbles in water. It can increase the number of bubbles by increasing the air flow, and can effectively make the bubbles easily adhere to pollutants such as suspended solids and oils in the wastewater, effectively separating the oils from the water.
[0015] 2. For the oil-containing wastewater separation equipment of the present utility model, the sludge and oil adhered to the side wall of the air flotation tank can be effectively removed through the cleaning cylinder, which can increase the cleanliness of the air flotation tank and effectively reduce the sludge and oils accumulated on both sides of the air flotation tank for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present utility model will be further described below with reference to the accompanying drawings.
[0017] Figure 1 is a perspective view of an oil-containing wastewater separation equipment in the present utility model;
[0018] Figure 2 is a structural schematic diagram of the air flotation tank in the present utility model;
[0019] Figure 3 is a structural schematic diagram of the protective plate in the present utility model;
[0020] Figure 4 is a structural schematic diagram of the slag scraping plate in the present utility model;
[0021] Figure 5 is a structural schematic diagram of the exhaust pipe in the present utility model;
[0022] In the figure: 1. Heat pump; 11. Exhaust pipe; 12. Check valve; 13. Support rod; 14. Deflector; 15. Heat conduction block; 16. Exhaust hole; 2. Slide groove; 21. Slide bar; 22. Spring; 23. Cleaning cylinder; 3. Hinge shaft; 31. Connecting rod; 32. Knocking ball; 4. Filter screen; 5. Protection plate; 51. Collection box; 6. Baffle; 8. Air flotation tank; 81. Flocculation chamber; 82. Bubble contact chamber; 83. Dissolved air pipe; 84. Separation chamber; 85. Scum scraping plate; 86. Scum trough. Detailed implementation mode
[0023] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation modes.
[0024] Such as Figures 1 to 5As shown in the figure, an oily wastewater separation device according to an embodiment of the present utility model includes a flotation tank 8; a flocculation chamber 81 is provided in the middle of the flotation tank 8; a bubble contact chamber 82 is provided in the middle of the flotation tank 8; two gas dissolving pipes 83 are installed in the middle of the bubble contact chamber 82; a separation chamber 84 is provided in the middle of the flotation tank 8; a scum trough 86 is provided in the middle of the flotation tank 8; the scum trough 86 is provided on one side far from the flocculation chamber 81; a plurality of slag scraping plates 85 are rotatably connected to the top of the flotation tank 8; a hot air pump 1 is fixedly connected to the side wall of the flotation tank 8; an exhaust pipe 11 is fixedly connected to the middle of the hot air pump 1; the middle of the exhaust pipe 11 penetrates through the side wall of the flotation tank 8; the flotation tank 8 is fixedly connected to the side wall of the bubble contact chamber 82; a check valve 12 is fixedly connected to the middle of the exhaust pipe 11; the check valve 12 is fixedly connected to one end close to the hot air pump 1; a plurality of exhaust holes 16 are provided in the middle of the exhaust pipe 11; the plurality of exhaust holes 16 are equidistantly distributed in the middle of the exhaust pipe 11; two support rods 13 are fixedly connected to the side wall of the bubble contact chamber 82; a guide plate 14 is fixedly connected to the end of each group of support rods 13; the guide plate 14 is inclined; two heat conducting blocks 15 are fixedly connected to the side wall of the bubble contact chamber 82; during operation, when the wastewater enters the inside of the flocculation chamber 81, the flocculant is stirred with the wastewater, and the wastewater enters the inside of the bubble contact chamber 82, and tiny bubbles are generated through the gas dissolving pipes 83. The bubbles quickly adhere to the suspended substances in the wastewater, and the scum layer composed of the suspended substances and the bubbles and the water enter the inside of the separation chamber 84. The slag scraping plates 85 are controlled to rotate, so that the ends of the slag scraping plates 85 separate the scum layer from the water. The separated scum layer enters the middle of the scum trough 86. During the process of separating the wastewater, the hot air pump 1 is powered on and started, so that the hot air pump 1 generates a hot air flow and discharges it into the inside of the exhaust pipe 11; the check valve 12 prevents the hot air from flowing back. After the hot air enters the inside of the exhaust pipe 11, it is discharged into the wastewater through a plurality of exhaust holes 16, so that the wastewater is heated up. And when the hot air enters the wastewater, bubbles will be generated. The bubbles are guided through the guide plate 14. When the bubbles pass through the heat conducting blocks 15, the heat conducting blocks 15 disperse the bubbles, and the heat is transferred to the side wall of the bubble contact chamber 82 through the heat conducting blocks 15. By discharging the hot air flow into the inside of the flotation tank 8, it can effectively reduce the low temperature of the water in the winter environment, resulting in a decrease in the generation speed and stability of bubbles in the water. It can increase the number of bubbles by increasing the air flow, and can effectively make the bubbles easily adhere to pollutants such as suspended substances and oils in the wastewater, effectively separate the oils from the water, can enhance the fluidity of the water after heating, further promote the contact and adhesion between the bubbles and the pollutants, and can guide the bubbles generated by the hot air flow through the guide plate 14, and can improve the treatment effect of the wastewater.
[0025] As Figure 4As shown in the figure, two sliding grooves 2 are provided at the end of the separation chamber 84; the two sliding grooves 2 are arranged oppositely; a sliding rod 21 is slidably connected to the middle of the sliding groove 2; a cleaning cylinder 23 is fixedly connected to the end of the sliding rod 21; a spring 22 is fixedly connected to the end of the sliding groove 2; the spring 22 is fixedly connected to the outside of the sliding rod 21; the other end of the spring 22 is fixedly connected to the middle of the cleaning cylinder 23; during operation, when the slag scraping plate 85 is scraping slag, the cleaning cylinder 23 is attached to the inner side wall of the air flotation tank 8. When the cleaning cylinder 23 is subjected to the pressure on both sides of the air flotation tank 8, the cleaning cylinder 23 slides inside the sliding groove 2 through the sliding rod 21. Through the elasticity of the spring 22, the cleaning cylinder 23 is in close contact with the inner side wall of the air flotation tank 8. When the slag scraping plate 85 is scraping slag, the inner side wall of the air flotation tank 8 is cleaned by the two cleaning cylinders 23 on both sides. Through the cleaning cylinder 23, the sludge and oil adhered to the side wall of the air flotation tank 8 can be effectively removed, the cleanliness of the air flotation tank 8 can be increased, the sludge and grease accumulated on both sides of the air flotation tank 8 for a long time can be effectively reduced, and the problems of corrosion or wear caused by the long-term residue of sludge and grease on the side wall of the air flotation tank 8 can be reduced. It can prevent the combination of bubbles and suspended matters from decreasing due to the accumulation of sludge and grease on both sides of the air flotation tank 8, and effectively increase the service life of the air flotation tank 8.
[0026] As Figure 3 and Figure 4 shown in the figure, two hinge shafts 3 are fixedly connected to the side wall of the separation chamber 84; a connecting rod 31 is fixedly connected to the middle of the hinge shaft 3; a knocking ball 32 is fixedly connected to the end of the connecting rod 31; during operation, when the slag scraping plate 85 rotates, the knocking ball 32 rotates with the slag scraping plate 85 through the hinge between the connecting rod 31 and the hinge shaft 3. When the knocking ball 32 rotates and is affected by gravity, it quickly turns to the side wall of the slag scraping plate 85, causing a collision between the knocking ball 32 and the slag scraping plate 85, thereby realizing the knocking ball 32 knocking on the side wall of the slag scraping plate 85. By knocking on the side wall of the slag scraping plate 85 with the knocking ball 32, the suspended matters attached to the surface of the slag scraping plate 85 can be effectively reduced, the accumulation and hardening of the attached suspended matters on the surface of the slag scraping plate 85 can be effectively reduced, the loss of part of the elasticity of the slag scraping plate 85 due to the attached sludge impurities after long-term use can be reduced, and the problem of the decrease in the effect of the slag scraping plate 85 scraping the floating slag can be reduced, effectively improving the scraping efficiency and effect of the slag scraping plate 85.
[0027] As Figure 2 shown in the figure, a filter screen 4 is fixedly connected to the end of the guide plate 14; the other end of the filter screen 4 is fixedly connected to the side wall of the bubble contact chamber 82; the bubble contact chamber 82 is arc-shaped; during operation, when the wastewater flows in the bubble contact chamber 82, the impurities in the wastewater are filtered from the bottom of the exhaust pipe 11 through the filter screen 4. Through the filter screen 4, the impurities entering the middle of the exhaust pipe 11 can be effectively reduced, the contact between the impurities and the surface of the exhaust pipe 11 can be effectively reduced to cause wear, the damage caused by the wear of the surface of the exhaust pipe 11 can be effectively reduced, and the hot bubbles discharged from the middle of the exhaust pipe 11 can be dispersed through the filter screen 4, so that they can be quickly dissolved in the wastewater, effectively accelerating the temperature of the wastewater.
[0028] As Figures 1 to 3 shown, a protective plate 5 is fixedly connected to the top of the air flotation tank 8; the protective plate 5 is fixedly connected to the top of the slag scraping plate 85; two collecting boxes 51 are fixedly connected to the side wall of the protective plate 5; the two collecting boxes 51 are arranged oppositely; during operation, when the slag scraping plate 85 is scraping slag, splashes are generated on the surface during rotation. The protective plate 5 blocks the splashing residues. When the wastewater residues slide down along the inner wall of the protective plate 5, they are collected by the two collecting boxes 51 on both sides. The protective plate 5 can effectively prevent the slag scraping plate 85 from splashing the floating slag out of the air flotation tank 8 when scraping and rotating the floating slag, effectively reducing the problem of environmental pollution around the air flotation tank 8, and can effectively prevent foreign objects from entering the inside of the air flotation tank 8, reducing the influence of infusion tubes, plastic bags, etc. entering the air flotation tank 8 on the normal operation. Moreover, the floating slag sliding down the side wall of the protective plate 5 is collected by the collecting box 51, effectively increasing the safety of the surrounding environment.
[0029] As Figure 2 and Figure 5 shown, multiple groups of baffles 6 are fixedly connected to the middle of the gas dissolving pipe 83; each group of baffles 6 is arranged oppositely; the baffles 6 are inclined; during operation, when the bubbles form and float upward, the flow path of the bubbles is changed by the baffles 6. The baffles 6 can effectively break the large bubbles, splitting the large bubbles into smaller bubbles, which can quickly contact the liquid and dissolve, effectively improving the rate and efficiency of gas dissolution, enabling the bubbles to be evenly distributed in the wastewater, effectively balancing the water flow and bubble distribution in the air flotation tank 8, and effectively increasing the stability and reliability of the treatment.
[0030] During operation, when the wastewater enters the interior of the flocculation chamber 81, the flocculant is stirred with the wastewater. The wastewater then enters the interior of the bubble contact chamber 82, and tiny bubbles are generated through the gas dissolving pipe 83. The bubbles quickly attach to the suspended solids in the wastewater, and the scum layer composed of the suspended solids and bubbles and the water enter the interior of the separation chamber 84. The slag scraping plate 85 is controlled to rotate, so that the end of the slag scraping plate 85 separates the scum layer from the water. The separated scum layer enters the middle of the scum tank 86. During the process of separating the wastewater, the hot air pump 1 is powered on and started, so that the hot air pump 1 generates hot air flow and discharges it into the interior of the exhaust pipe 11; the one-way valve 12 prevents the hot air from flowing back. After the hot air enters the interior of the exhaust pipe 11, it is discharged into the wastewater through multiple exhaust holes 16, so that the wastewater is heated. And when the hot air enters the interior of the wastewater, bubbles will be generated. The bubbles are guided by the guide plate 14. When the bubbles pass through the heat conducting block 15, the heat conducting block 15 disperses the bubbles, and the heat is transferred to the side wall of the bubble contact chamber 82 through the heat conducting block 15. When the slag scraping plate 85 is scraping the slag, the cleaning cylinder 23 is attached to the inner side wall of the air flotation tank 8. When the cleaning cylinder 23 is subjected to the pressure on both sides of the air flotation tank 8, the cleaning cylinder 23 slides in the chute 2 through the sliding rod 21, and the spring 22 elastically makes the cleaning cylinder 23 closely contact with the inner side wall of the air flotation tank 8. When the slag scraping plate 85 is scraping the slag, the inner side wall of the air flotation tank 8 is cleaned by the cleaning cylinders 23 on both sides. When the slag scraping plate 85 rotates, the knocking ball 32 rotates with the slag scraping plate 85 through the hinge connection between the connecting rod 31 and the hinge shaft 3. When the knocking ball 32 rotates, it quickly turns to the side wall of the slag scraping plate 85 under the action of gravity, so that a collision occurs between the knocking ball 32 and the slag scraping plate 85, thereby realizing that the knocking ball 32 knocks the side wall of the slag scraping plate 85. When the wastewater flows in the bubble contact chamber 82, the impurities in the wastewater are filtered from the bottom of the exhaust pipe 11 through the filter screen 4. When the slag scraping plate 85 is scraping the slag, splashes are generated on the surface during rotation. The splashes are blocked by the protective plate 5. When the wastewater residue slides down the inner wall of the protective plate 5, it is collected by the collection boxes 51 on both sides. When the bubbles form and float upward, the flow path of the bubbles is changed by the baffle 6.
[0031] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An oily wastewater separation device, comprising an air flotation tank (8); characterized in that: A flotation tank (8) is provided with a flocculation chamber (81) in the middle; the flotation tank (8) is provided with a bubble contact chamber (82) in the middle; two gas dissolving pipes (83) are installed in the middle of the bubble contact chamber (82); the flotation tank (8) is provided with a separation chamber (84) in the middle; the flotation tank (8) is provided with a scum trough (86) in the middle; the scum trough (86) is arranged on one side away from the flocculation chamber (81); a plurality of slag scraping plates (85) are rotatably connected to the top of the flotation tank (8); a hot air pump (1) is fixedly connected to the side wall of the flotation tank (8); an exhaust pipe (11) is fixedly connected to the middle of the hot air pump (1); the middle of the exhaust pipe (11) penetrates through the side wall of the flotation tank (8); the flotation tank (8) is fixedly connected to the side wall of the bubble contact chamber (82); a check valve (12) is fixedly connected to the middle of the exhaust pipe (11); the check valve (12) is fixedly connected to one end close to the hot air pump (1); a plurality of exhaust holes (16) are provided in the middle of the exhaust pipe (11); the plurality of exhaust holes (16) are equidistantly distributed in the middle of the exhaust pipe (11); two support rods (13) are fixedly connected to the side wall of the bubble contact chamber (82); a deflector (14) is fixedly connected to the end of each support rod (13); the deflector (14) is inclined; two heat conducting blocks (15) are fixedly connected to the side wall of the bubble contact chamber (82).
2. The oil-containing wastewater separation device according to claim 1, wherein: Two chutes (2) are provided at the end of the slag scraping plate (85); the two chutes (2) are arranged oppositely; a sliding rod (21) is slidably connected to the middle of the chute (2); a cleaning cylinder (23) is fixedly connected to the end of the sliding rod (21); a spring (22) is fixedly connected to the end of the chute (2); the spring (22) is fixedly connected to the outside of the sliding rod (21); the other end of the spring (22) is fixedly connected to the middle of the cleaning cylinder (23).
3. The oil-containing wastewater separation equipment according to claim 2, characterized in that: Two hinge shafts (3) are fixedly connected to the side wall of the slag scraping plate (85); a connecting rod (31) is fixedly connected to the middle of the hinge shaft (3); a knocking ball (32) is fixedly connected to the end of the connecting rod (31).
4. The oil-containing wastewater separation device according to claim 3, characterized in that: A filter screen (4) is fixedly connected to the end of the deflector (14); the other end of the filter screen (4) is fixedly connected to the side wall of the bubble contact chamber (82); the bubble contact chamber (82) is arc-shaped.
5. An oil-containing wastewater separation device according to claim 4, characterized in that: A protective plate (5) is fixedly connected to the top of the flotation tank (8); the protective plate (5) is fixedly connected to the top position of the slag scraping plate (85); two collection boxes (51) are fixedly connected to the side wall of the protective plate (5); the two collection boxes (51) are arranged oppositely.
6. The oil-containing wastewater separation device according to claim 5, wherein: A plurality of baffle plates (6) are fixedly connected to the middle of the gas dissolving pipe (83); each group of baffle plates (6) is arranged oppositely; the baffle plates (6) are inclined.