Dissolved air flotation machine capable of realizing automatic exhaust
By designing a stirring device and a driving device in the dissolved air flotation machine, the problem of sediment blocking the exhaust equipment is solved, automatic exhaust and efficient wastewater treatment are achieved, and the service life and treatment efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202421964911.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-08-14
AI Technical Summary
During use, existing dissolved air flotation machines are prone to sediment clogging the exhaust equipment, resulting in poor wastewater treatment effects.
A dissolved air flotation machine including a stirring device is designed. The cooperation of scrapers and top plates can reduce the blockage of exhaust equipment by sediments. Pressurized dissolved air and flotation separation technology are used in combination with a drive device to achieve automatic exhaust.
It effectively avoids sediment blocking the exhaust equipment, improves the practicality of the dissolved air flotation machine and the wastewater treatment efficiency, extends the service life of the equipment, and realizes the automatic exhaust function.
Smart Images

Figure CN223397500U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dissolved air flotation machines, in particular to a dissolved air flotation machine capable of realizing automatic exhaust. Background Art
[0002] Dissolved air flotation (DAF) machines can be categorized by water flow pattern: horizontal flow, upflow, and integrated. These machines utilize a new, highly efficient dissolved air device—a microbubble generator—to dissolve air into the water, replacing traditional air entrainment equipment. Several inclined tubes are installed within the flotation area, including a housing, scraper, and spiral discharger—to form a complete flotation water purification system. Theoretically, flotation effectiveness is not directly related to residence time, but rather to the flotation area. If the flotation area at a water depth of H is reduced to H / 10, both the flotation distance and residence time will decrease tenfold. This is known as the "shallow pool theory." The purpose of adding inclined tubes to the flotation area is to increase the flotation area, significantly reducing the Reynolds coefficient and avoiding turbulent flow. Instead, they create laminar flow, achieving the desired shallow flotation effect. With the development of society, DAF machines are increasingly being used for wastewater treatment.
[0003] Existing equipment such as CN216662689U is a dissolved air flotation machine for wastewater, which facilitates the rapid separation of water and suspended matter in the dissolved air flotation machine body, thereby improving the ease of use of the device. The device comprises a dissolved air flotation machine body, a partition, two sets of first fixing blocks, an air dissolving tank, a connecting pipe, a vacuum pump, a lifting mechanism, a baffle, a mounting assembly, and a filter screen. The dissolved air flotation machine body is provided with a chamber, a drain pipe is provided at the bottom of the left end, an exhaust pipe is provided at the right side of the top end, and a water injection pipe and a flocculant injection pipe are provided at the right end of the dissolved air flotation machine body. The partition is fixed in the chamber of the dissolved air flotation machine body, and an opening is provided at the bottom of the partition. The air dissolving tank is fixed to the upper right end of the dissolved air flotation machine body via the two sets of first fixing blocks. One end of the connecting pipe is connected to the air dissolving tank, and the other end extends into the dissolved air flotation machine body. The connecting pipe is provided with a control valve.
[0004] When wastewater needs to be treated, workers inject the wastewater into the dissolved air flotation machine and start the dissolved air flotation machine so that the dissolved air flotation machine can process the wastewater. However, during the use of the dissolved air flotation machine, sediment may clog the exhaust equipment, causing the exhaust equipment to be unable to achieve the automatic exhaust function, thereby resulting in poor wastewater treatment effect during the use of the dissolved air flotation machine. Utility Model Content
[0005] The purpose of the utility model is to solve the disadvantage of low wastewater treatment effect of dissolved air flotation machines in the prior art during use, and to propose a dissolved air flotation machine that can realize automatic exhaust.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dissolved air flotation machine that can realize automatic exhaust, comprising a processor, a scraper and a stirring device, the scraper is installed on the surface of the processor, the surface of the processor is equipped with an exhaust device, the stirring device is arranged on the surface of the processor, the stirring device includes a bottom ring, the bottom ring is placed on the surface of the processor, the upper surface of the bottom ring is fixedly connected to four scraping blades, the four scraping blades are arranged in a ring shape, the top ends of the four scraping blades are fixedly connected to a top plate, the surface of the top plate is fixedly connected to a baffle, the baffle is placed on the surface of the exhaust device, the upper surface of the baffle is in an inclined state, the surface of the top plate is fixedly connected to a threaded ring, the surface of the top plate is provided with a supporting mechanism, the supporting mechanism includes a rotating rod, the rotating rod is threadedly connected to the surface of the threaded ring, the rotating rod is vertically arranged, and the rotating rod can cooperate with the threaded ring to achieve the purpose of facilitating the disassembly of the top plate.
[0007] Preferably, a bracket is fixedly connected to the surface of the processor, and the rotating rod is slidably connected to the surface of the bracket. The bracket can cooperate with the processor and the rotating rod to achieve the purpose of supporting the support rod.
[0008] Preferably, a driving device is provided on the surface of the bracket, and the driving device includes a driving motor, and the driving motor is fixedly connected to the surface of the bracket. The driving end of the driving motor is fixedly connected to the first rotating wheel, and the first rotating wheel is rotatably connected to the surface of the bracket. The driving motor can cooperate with the first rotating wheel and the bracket to achieve the purpose of supporting the driving motor to adjust the first rotating wheel.
[0009] Preferably, the surface of the bracket is fixedly connected to a limiting ring, the surface of the limiting ring is rotatably connected to a second rotating wheel, the second rotating wheel is fixedly connected to the surface of the rotating rod, and the limiting ring can cooperate with the bracket and the second rotating wheel to achieve the purpose of supporting the rotation of the second rotating wheel.
[0010] Preferably, a belt is installed between the first rotating wheel and the second rotating wheel, and the belt is arranged horizontally. The belt can cooperate with the first rotating wheel and the second rotating wheel to achieve the purpose of adjusting the rotating rod.
[0011] Compared with the prior art, the advantages and positive effects of the present invention are:
[0012] 1. In the utility model, by providing a stirring device, when the dissolved air flotation machine is used, the situation of sediment blocking the exhaust equipment is reduced. The device is used, and the device pressurizes the wastewater to dissolve air and floats and separates it to achieve the purpose of treating wastewater. When the stirring device rotates, the rotating rod drives the top plate, the top plate drives the baffle plate and the scraper, and the scraper drives the bottom ring. The rotation of the scraper drives the surrounding water flow, reducing the accumulation of sediment and blocking the exhaust equipment. By providing the stirring device, the situation of sediment blocking the exhaust equipment is effectively reduced. When the dissolved air flotation machine is used, the stirring device is adjusted to avoid the sediment affecting the normal use of the exhaust equipment, thereby improving the practicality of the dissolved air flotation machine, improving the auxiliary function of the exhaust equipment to the dissolved air flotation machine, increasing the service life of the dissolved air flotation machine, improving the wastewater treatment efficiency of the dissolved air flotation machine, and facilitating the automatic exhaust of the dissolved air flotation machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 The utility model provides a three-dimensional structural diagram of a dissolved air flotation machine capable of achieving automatic exhaust;
[0014] Figure 2 The utility model provides a structural diagram of a stirring device of a dissolved air flotation machine capable of achieving automatic exhaust;
[0015] Figure 3 This utility model proposes a dissolved air flotation machine that can realize automatic exhaust Figure 2 Schematic diagram of the structure at A in the middle;
[0016] Figure 4 The utility model provides a schematic structural diagram of a driving device of a dissolved air flotation machine capable of achieving automatic exhaust;
[0017] Figure 5 This utility model proposes a dissolved air flotation machine that can realize automatic exhaust Figure 4 Schematic diagram of the structure at point B in the middle.
[0018] Legend:
[0019] 1. Processor; 2. Scraper; 3. Stirring device; 31. Bottom ring; 32. Scraper; 33. Threaded ring; 34. Top plate; 35. Baffle plate; 36. Rotating rod; 37. Bracket; 4. Driving device; 41. Driving motor; 42. First rotating wheel; 43. Belt; 44. Limiting ring; 45. Second rotating wheel; 5. Exhaust equipment. DETAILED DESCRIPTION
[0020] See also Figure 1-5The utility model provides a technical solution: a dissolved air flotation machine that can realize automatic exhaust, including a processor 1, a scraper 2 and a stirring device 3, the scraper 2 is installed on the surface of the processor 1, the surface of the processor 1 is equipped with an exhaust device 5, and the stirring device 3 is arranged on the surface of the processor 1.
[0021] The specific configuration and function of the stirring device 3 and the driving device 4 will be described in detail below.
[0022] In this embodiment: the stirring device 3 includes a bottom ring 31, the bottom ring 31 is placed on the surface of the processor 1, and four scrapers 32 are fixedly connected to the upper surface of the bottom ring 31. The four scrapers 32 are arranged in a ring shape, and the top ends of the four scrapers 32 are fixedly connected to a top plate 34. The surface of the top plate 34 is fixedly connected to a baffle 35, which is placed on the surface of the exhaust equipment 5. The upper surface of the baffle 35 is in an inclined state, and the surface of the top plate 34 is fixedly connected to a threaded ring 33, and the surface of the top plate 34 is provided with a supporting mechanism.
[0023] Specifically, the support mechanism includes a rotating rod 36 , which is threadedly connected to the surface of the threaded ring 33 . The rotating rod 36 is vertically arranged and can cooperate with the threaded ring 33 to facilitate the removal of the top plate 34 .
[0024] Specifically, a bracket 37 is fixedly connected to the surface of the processor 1 , and the rotating rod 36 is slidably connected to the surface of the bracket 37 .
[0025] In this embodiment, the bracket 37 can cooperate with the processor 1 and the rotating rod 36 to achieve the purpose of supporting the support rod.
[0026] In this embodiment: a driving device 4 is provided on the surface of the bracket 37, and the driving device 4 includes a driving motor 41. The driving motor 41 is fixedly connected to the surface of the bracket 37, and the driving end of the driving motor 41 is fixedly connected to the first rotating wheel 42. The first rotating wheel 42 is rotatably connected to the surface of the bracket 37. The driving motor 41 can cooperate with the first rotating wheel 42 and the bracket 37 to achieve the purpose of supporting the driving motor 41 to adjust the first rotating wheel 42.
[0027] Specifically, a limiting ring 44 is fixedly connected to the surface of the bracket 37 , a second rotating wheel 45 is rotatably connected to the surface of the limiting ring 44 , and the second rotating wheel 45 is fixedly connected to the surface of the rotating rod 36 .
[0028] In this embodiment, the limiting ring 44 can cooperate with the bracket 37 and the second rotating wheel 45 to achieve the purpose of supporting the rotation of the second rotating wheel 45.
[0029] Specifically, a belt 43 is installed between the first rotating wheel 42 and the second rotating wheel 45 , and the belt 43 is arranged in a transverse direction.
[0030] In this embodiment, the belt 43 can cooperate with the first rotating wheel 42 and the second rotating wheel 45 to achieve the purpose of adjusting the rotating rod 36.
[0031] Working principle: By setting a stirring device 3, when the dissolved air flotation machine is in use, the situation of sediment blocking the exhaust device 5 is reduced. When the device is used, the device pressurizes the wastewater to dissolve air and floats and separates it to achieve the purpose of treating wastewater. When the stirring device 3 rotates, the rotating rod 36 drives the top plate 34, the top plate 34 drives the baffle 35 and the scraper 32, the scraper 32 drives the bottom ring 31, and the rotation of the scraper 32 will drive the surrounding water flow, reducing the accumulation of sediment and blocking the exhaust device 5. By setting the stirring device 3, the situation of sediment blocking the exhaust device 5 is effectively reduced. When the dissolved air flotation machine is in use, the stirring device 3 is adjusted to avoid the sediment affecting the normal use of the exhaust device 5, thereby improving the practicality of the dissolved air flotation machine, improving the auxiliary function of the exhaust device 5 to the dissolved air flotation machine, improving the service life of the dissolved air flotation machine, and improving the efficiency of the dissolved air flotation machine in treating wastewater, which is beneficial to dissolving air flotation machine. The air flotation machine automatically exhausts air. In addition, by providing a driving device 4, when the stirring device 3 is in use, it is convenient for workers to adjust the stirring device 3 and use the equipment. The equipment pressurizes the wastewater to dissolve air and float and separate it to achieve the purpose of treating wastewater. The driving motor 41 is started, and the driving motor 41 drives the first rotating wheel 42. The first rotating wheel 42 drives the belt 43. The belt 43 drives the second rotating wheel 45. The second rotating wheel 45 is guided by the limit ring 44. The second rotating wheel 45 drives the rotating rod 36. By providing the driving device 4, it is effectively convenient for workers to adjust the stirring device 3. When the stirring device 3 is in use, the driving device 4 is started to avoid sediment affecting the normal use of the exhaust device 5, thereby improving the practicality of the dissolved air flotation machine, improving the auxiliary function of the driving device 4 to the stirring device 3, improving the working efficiency of the dissolved air flotation machine, and improving the efficiency of the dissolved air flotation machine in treating wastewater.
Claims
1. A dissolved air flotation machine capable of achieving automatic exhaust, comprising a processor (1), a scraper (2) and a stirring device (3), characterized in that: The scraper (2) is mounted on the surface of the processor (1), and the surface of the processor (1) is mounted with an exhaust device (5). The stirring device (3) is arranged on the surface of the processor (1), and the stirring device (3) includes a bottom ring (31), and the bottom ring (31) is placed on the surface of the processor (1). Four scrapers (32) are fixedly connected to the upper surface of the bottom ring (31), and the four scrapers (32) are arranged in a ring shape. The top ends of the four scrapers (32) are fixedly connected to a top plate (34), and the surface of the top plate (34) is fixedly connected to a baffle (35), and the baffle (35) is placed on the surface of the exhaust device (5). The upper surface of the baffle (35) is in an inclined state, and the surface of the top plate (34) is fixedly connected to a threaded ring (33), and the surface of the top plate (34) is provided with a supporting mechanism.
2. A dissolved air flotation machine capable of achieving automatic exhaust according to claim 1, characterized in that: The support mechanism comprises a rotating rod (36), the rotating rod (36) being threadedly connected to the surface of the threaded ring (33), and the rotating rod (36) being vertically arranged.
3. The dissolved air flotation machine capable of automatic exhaust according to claim 2, characterized in that: A bracket (37) is fixedly connected to the surface of the processor (1), and the rotating rod (36) is slidably connected to the surface of the bracket (37).
4. A dissolved air flotation machine capable of achieving automatic exhaust according to claim 3, characterized in that: A driving device (4) is provided on the surface of the bracket (37), and the driving device (4) includes a driving motor (41). The driving motor (41) is fixedly connected to the surface of the bracket (37). A driving end of the driving motor (41) is fixedly connected to a first rotating wheel (42), and the first rotating wheel (42) is rotatably connected to the surface of the bracket (37).
5. The dissolved air flotation machine capable of achieving automatic exhaust according to claim 4, characterized in that: The surface of the bracket (37) is fixedly connected to a limiting ring (44), the surface of the limiting ring (44) is rotatably connected to a second rotating wheel (45), and the second rotating wheel (45) is fixedly connected to the surface of the rotating rod (36).
6. The dissolved air flotation machine capable of achieving automatic exhaust according to claim 4, characterized in that: A belt (43) is installed between the first rotating wheel (42) and the second rotating wheel (45), and the belt (43) is arranged in a transverse direction.
Citation Information
Patent Citations
Dissolved air flotation machine for wastewater
CN216662689U