Cavitation air flotation machine

Abstract

The utility model discloses a cavitation air floatation machine, relates to sewage treatment equipment, and adopts the technical scheme that the cavitation air floatation machine comprises a tank body and a foam scraping machine, the foam scraping machine comprises a driving roller and a scraping plate, a collecting hopper is arranged in the tank body, a cleaning mechanism is arranged above the collecting hopper, the cleaning mechanism comprises a roller and bristles, and the driving roller provides power for the roller through a transmission mechanism. In the using process, the driving roller transmits torque to the roller through the transmission mechanism and enables the roller to rotate, the rotating roller drives the bristles to rotate together, the bristles move relative to the surface of the scraper blade, the bristles can scrape off solid particles attached to the scraper blade, the cleaning structure is arranged above the collecting hopper, and the cleaning effect is good. And the scraped solid particles can just fall into the collecting hopper, so that the scraped solid particles cannot influence the treated sewage in the tank body, and the driven wheel made of aluminum alloy can better adapt to the working environment of the air flotation machine.

Description

Technical Field

[0001] The utility model relates to sewage treatment equipment, and more specifically, to a vortex cavitation flotation machine. Background Art

[0002] Flotation machine is a sewage treatment equipment used for solid-liquid separation. The flotation machine generates a large number of tiny bubbles in a specific way. These bubbles collide with and adhere to the suspended particles in the sewage. The buoyancy of the bubbles floats the suspended particles to the water surface, achieving solid-liquid separation. Flotation machines can be divided into vortex flotation machines and shallow flotation machines according to the different ways in which bubbles are generated.

[0003] A vortex flotation machine usually consists of a tank body, an aerator and a scraper. The scraper includes an active roller directly connected to the power source and a scraper group composed of several scrapers. The two ends of the flotation tank are respectively connected to the water inlet pipe and the water outlet pipe. The sewage enters the tank body through the water inlet pipe. The aerator introduces dense and tiny bubbles into the sewage, and then the active roller drives the scraper group to scrape the impurities floating on the sewage surface into the collection bucket.

[0004] However, due to the strong adhesion of suspended particles, suspended particles are easily retained on the scraper, resulting in a low foam removal efficiency of the scraper.

[0005] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a cavitation flotation machine.

[0007] The above technical purpose of the present utility model is achieved through the following technical solutions: a vortex flotation machine includes a pool body and a scraper, the scraper includes an active roller and a plurality of scrapers, a collecting bucket is installed in the pool body, and a cleaning mechanism for cleaning the scrapers is provided above the collecting bucket, the cleaning mechanism includes a roller and bristles fixed on the outer peripheral wall of the roller, the active roller provides power to the roller through a transmission mechanism and causes the roller to rotate.

[0008] The utility model is further configured as follows: the transmission mechanism includes a driving wheel fixed at one end of the driving roller and a driven wheel fixed at one end of the drum, and the driving wheel provides torque to the driven wheel through a belt.

[0009] The utility model is further configured as follows: the roller comprises a core shaft and a plurality of arc-shaped blocks detachably connected to the core shaft, the plurality of arc-shaped blocks are distributed in a circumferential annular array along the core shaft, and the bristles are fixed on the arc-shaped blocks.

[0010] The utility model is further configured as follows: a sparse portion and a dense portion are formed on the arc-shaped block, the number of bristles in the dense portion per unit area is greater than the number of bristles in the sparse portion, and the sparse portion is arranged between two adjacent dense portions.

[0011] The utility model is further configured as follows: a T-shaped block is provided on the arc-shaped concave surface of the arc-shaped block, and a long groove for being embedded in the T-shaped block is opened on the outer peripheral wall of the core shaft.

[0012] The utility model is further configured as follows: the diameter of the driving wheel is greater than the diameter of the driven wheel.

[0013] The utility model is further configured as follows: the arc-shaped block is made of aluminum alloy.

[0014] In summary, the utility model has the following beneficial effects: during the use of the flotation machine, the active roller drives the scraper group to move, so that the scraper scrapes the solid particles floating on the liquid surface into the collection bucket. At the same time, the active roller transmits the torque to the roller through the transmission mechanism and rotates it. The rotating roller drives the bristles to rotate together. When there are some solid particles adhering to the scraper, the bristles conflict with the scraper and move relative to the surface of the scraper, so that the bristles can scrape off the solid particles adhering to the scraper. The cleaning structure is set above the collection bucket, so that the scraped solid particles can fall into the collection bucket, so that the scraped solid particles will not affect the treated sewage in the pool body. The setting of the transmission mechanism enables the active roller and the roller to run better synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a schematic cross-sectional structure diagram of the cleaning mechanism in the present utility model.

[0017] In the figure: 1. pool body; 2. driving roller; 3. scraper; 4. bristles; 5. driving wheel; 6. driven wheel; 7. belt; 8. core shaft; 9. arc block; 10. sparse part; 11. dense part; 12. T-block; 13. long groove; 14. collecting bucket. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0019] Cavitation air flotation machine, such as Figure 1As shown, it includes a tank body 1 and a scraper, which includes an active roller 2 and several scrapers 3. A collecting bucket 14 is installed in the tank body 1. A cleaning mechanism for cleaning the scrapers 3 is provided above the collecting bucket 14. The cleaning mechanism includes a roller and bristles 4 fixed to the outer peripheral wall of the roller. The active roller 2 provides power to the roller through a transmission mechanism and causes the roller to rotate. During the use of the flotation machine, the active roller 2 drives the scraper 3 group to move, so that the scraper 3 scrapes the solid particles floating on the liquid surface into the collecting bucket 14. At the same time, the active roller 2 transmits torque to the roller through the transmission mechanism. And make it rotate, the rotating roller drives the brush 4 to rotate together, when there are some solid particles adhering to the scraper 3, the brush 4 conflicts with the scraper 3 and moves relative to the surface of the scraper 3, so that the brush 4 can scrape off the solid particles adhering to the scraper 3, and the cleaning structure is set above the collecting bucket 14, so that the scraped solid particles can just fall into the collecting bucket 14, so that the scraped solid particles will not affect the treated sewage in the pool body 1, and the setting of the transmission mechanism enables the active roller 2 and the roller to run better synchronously.

[0020] like Figure 1 and Figure 2As shown, the transmission mechanism includes a driving wheel 5 fixed at one end of the active roller 2 and a driven wheel 6 fixed at one end of the drum. The driving wheel 5 provides torque to the driven wheel 6 through a belt 7. The belt 7 transmission can alleviate the load impact. When encountering a large load, the driving wheel 5 and the driven wheel 6 can rotate relative to each other, so that the operation of the drum is relatively stable. At the same time, the belt 7 transmission has the advantage of low noise, which makes the noise generated when the drum is working low. The belt 7 transmission also has the characteristic of low installation precision. After the subsequent replacement and maintenance of the active roller 2 and the drum, the reinstallation of the belt 7 is relatively convenient. The drum includes a core shaft 8 and several arc blocks 9 detachably connected to the core shaft 8. Several arc blocks 9 are distributed in a circumferential annular array along the core shaft 8, and the bristles 4 are fixed on the arc On the block 9, during the long-term use of the bristles 4, wear and tear is inevitable. People can replace the bristles 4 at the worn parts by removing the arc block 9 from the core shaft 8. Compared with the design of the roller and the bristles 4 as one, this arrangement allows people to replace and maintain the bristles 4 only by removing the arc block 9 from the core shaft 8, making the replacement and maintenance of the bristles 4 more convenient and labor-saving. A sparse portion 10 and a dense portion 11 are formed on the arc block 9. The number of bristles 4 in the dense portion 11 per unit area is greater than the number of bristles 4 in the sparse portion 10. The sparse portion 10 is arranged between two adjacent dense portions 11. The sparse portions 10 and dense portions 11 on the two adjacent arc blocks 9 are staggered. Through the arrangement of the sparse portion 10 and the dense portion 11, when the dense portion 11 contacts the scraper 3 and occurs relative to each other During friction, the denser bristles 4 can better scrape off the solid particles adhering to the scraper 3. After the solid particles are scraped off, the sparse portion 10 and the scraper 3 have relative friction, and the sparser bristles 4 have less impact on the surface of the scraper 3, which better protects the surface of the scraper 3. In addition, the provision of the sparse portion 10 also reduces the number of bristles 4 on the arc block 9, thereby better reducing its weight, which is beneficial to the subsequent disassembly and replacement of the arc block 9. A T-block 12 is provided on the arc-shaped concave surface of the arc block 9, and a long groove 13 for being embedded by the T-block 12 is provided on the outer peripheral wall of the core shaft 8. When replacing the arc block 9, the flotation machine is stopped, and then the T-block 12 is slid out along the long groove 13. At this point, the separation of the arc block 9 and the core shaft 8 is completed. After the scraper 3 is scraped, the scraper 3 can be moved to the next step. The diameter of the driving wheel 5 is greater than that of the driven wheel 6. The diameter of the driving wheel 5 is at least twice the diameter of the driven wheel 6. Due to the belt 7 transmission, the linear speeds of the driving wheel 5 and the driven wheel 6 are equal under normal circumstances. The diameter of the driving wheel 5 is set larger than that of the driven wheel 6, so that the angular velocity of the driven wheel 6 is faster than that of the driving wheel 5, so that the scraper 3 can contact with more bristles 4 per unit time, so that the bristles 4 can more thoroughly clean the solid particles adhering to the scraper 3, which is conducive to improving the working efficiency of the cleaning mechanism. The arc block 9 is made of aluminum alloy. Aluminum alloy has the advantage of strong corrosion resistance, so that the driven wheel 6 made of aluminum alloy can better adapt to the working environment of the flotation machine.

[0021] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. Vortex air flotation machine, characterized by: The invention comprises a pool body (1) and a scraper, wherein the scraper comprises an active roller (2) and a plurality of scrapers (3). A collecting bucket (14) is installed in the pool body (1). A cleaning mechanism for cleaning the scrapers (3) is provided above the collecting bucket (14). The cleaning mechanism comprises a roller and bristles (4) fixed on the outer peripheral wall of the roller. The active roller (2) provides power to the roller through a transmission mechanism and causes the roller to rotate.

2. The cavitation air flotation machine according to claim 1, characterized in that: The transmission mechanism comprises a driving wheel (5) fixed on the driving roller (2) and a driven wheel (6) fixed on the drum, wherein the driving wheel (5) provides torque to the driven wheel (6) via a belt (7).

3. The cavitation air floatation machine according to claim 2, characterized in that: The roller comprises a core shaft (8) and a plurality of arc-shaped blocks (9) detachably connected to the core shaft (8), wherein the plurality of arc-shaped blocks (9) are distributed in a circumferential annular array along the core shaft (8), and the bristles (4) are fixed on the arc-shaped blocks (9).

4. The cavitation air floatation machine according to claim 3, characterized in that: The arc block (9) is provided with a sparse portion (10) and a dense portion (11), the number of bristles (4) in the dense portion (11) is greater than the number of bristles (4) in the sparse portion (10), and the sparse portion (10) is provided between two adjacent dense portions (11).

5. The cavitation air floatation machine according to claim 4, characterized in that: A T-shaped block (12) is provided on the arc-shaped concave surface of the arc-shaped block (9), and a long groove (13) for embedding the T-shaped block (12) is provided on the outer peripheral wall of the core shaft (8).

6. The cavitation air floatation machine according to claim 5, characterized in that: The diameter of the driving wheel (5) is greater than the diameter of the driven wheel (6).

7. The cavitation air floatation machine according to claim 6, characterized in that: The arc-shaped block (9) is made of aluminum alloy material.

Images