Air floatation machine flocculation removal device

Abstract

The utility model discloses a kind of air flotation machine flocculate removing device, it is related to sewage treatment equipment technical field, including air flotation machine box, the top of air flotation machine box is provided with flocculate removing mechanism, and the left end of air flotation machine box is provided with collection filtering mechanism;The flocculate removing mechanism includes first rotating shaft and second rotating shaft rotationally connected on the surface of air flotation machine box, and the surface of first rotating shaft and second rotating shaft is fixedly connected with two first transmission sprocket and two second transmission sprocket.The utility model is driven by transmission sprocket and transmission chain running by first rotating shaft, second rotating shaft in flocculate removing mechanism, so that the scraper distributed on the upper and lower surfaces of transmission chain can comprehensively scrape the flocculate in air flotation machine box, and it is discharged through blow-off, realize efficient removal flocculate, improve the efficiency and completeness of flocculate removing.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and in particular to a floc removal device for an air flotation machine. Background Technology

[0002] In the field of wastewater treatment, dissolved air flotation (DAF) machines are key equipment. They generate microbubbles through a dissolved air system, adsorb pollutants, and float to the surface to achieve solid-liquid separation. They are widely used to remove impurities such as suspended solids, grease, and algae, and are especially suitable for water bodies with low turbidity, high color, or rich algae.

[0003] Currently, dissolved air flotation (DAF) machines have some problems in treating flocculants. Taking the scum scraping device of the electrocoagulation DAF tank disclosed in patent CN217627726U as an example, although this device can move along the width of the DAF tank, reducing the stroke and improving scraping efficiency, it uses a scraper screen to remove scum. This results in most of the fine scum leaking through the screen's mesh, making it difficult to completely remove scum from the surface of the DAF tank. Furthermore, existing DAF machines lack mechanisms for collecting and filtering sludge, increasing the complexity of subsequent operations and affecting work efficiency.

[0004] To address this, we designed a floc removal device for air flotation machines. Utility Model Content

[0005] This utility model discloses a floc removal device for an air flotation machine. To achieve the above-mentioned objective, this utility model adopts the following technical solution: A floc removal device for an air flotation machine includes an air flotation machine housing, a floc removal mechanism is provided on the top of the air flotation machine housing, and a collection and filtration mechanism is provided on the left end of the air flotation machine housing. The floc removal mechanism includes a first rotating shaft and a second rotating shaft rotatably connected to the upper surface of the flotation unit housing. Two first transmission sprockets and two second transmission sprockets are fixedly connected to the surfaces of the first and second rotating shafts. A transmission chain is installed between the first and second transmission sprockets. Two scrapers are fixedly installed on the surfaces of the two transmission chains. A drain port is provided at the left end of the flotation unit housing, and the position of the drain port corresponds to the scraper. The two scrapers are distributed on the upper and lower surfaces of the transmission chains.

[0006] In a preferred embodiment, the collection and filtration mechanism includes a collection box fixedly connected to the left end of the air flotation unit housing. The position of the collection box corresponds to the drain outlet, and two limiting discs are symmetrically rotatably connected to the inner wall of the collection box. A cylindrical filter screen is fixedly connected between the two limiting discs, and a drain pipe and a rotary drive rod are fixedly connected to the surfaces of the two limiting discs that are far apart from each other.

[0007] In a preferred embodiment, the end of the drain pipe away from the cylindrical filter extends to the outside of the collection box. Both the drain pipe and the rotary drive rod are rotatably connected to the inner wall of the collection box via sealed bearings. One end of the rotary drive rod extends to the outside of the collection box and is fixedly connected to a first driven synchronous pulley. The end of the first rotating shaft is fixedly connected to a first driving synchronous pulley. The position of the first driving synchronous pulley corresponds to that of the first driven synchronous pulley, and a first transmission belt is installed between the first driving synchronous pulley and the first driven synchronous pulley.

[0008] In a preferred embodiment, a support frame is fixedly connected to the upper surface of the collection box, and two electric telescopic rods are fixedly connected to the upper surface of the support frame. The telescopic ends of the two electric telescopic rods extend to the bottom of the support frame and are fixed with rubber scrapers, which are located directly above the cylindrical filter screen.

[0009] In a preferred embodiment, two fixing frames are symmetrically arranged on the upper surface of the collection box, and a cleaning scraper is fixedly connected between the two fixing frames. The cleaning scraper is positioned corresponding to the scraper plate, and the cleaning scraper and the scraper plate maintain a certain tilt angle.

[0010] In a preferred embodiment, a drive box is fixedly connected to the back of the air flotation unit housing, a drive motor is fixedly installed on the inner wall of the drive box, a second drive synchronous pulley is fixedly connected to the rotating shaft of the drive motor, a second driven synchronous pulley is fixedly connected to one end of the first rotating shaft, and the second drive synchronous pulley and the second driven synchronous pulley are connected by a second transmission belt.

[0011] As can be seen from the above, the floc removal device for an air flotation machine provided by this utility model has the following technical effects.

[0012] 1. The first and second rotating shafts in the floc removal mechanism drive the transmission sprocket and transmission chain to rotate, so that the scrapers distributed on the upper and lower surfaces of the transmission chain can completely scrape off the flocs in the air flotation chamber and discharge them through the drain outlet, thereby achieving efficient removal of flocs and improving the efficiency and thoroughness of floc removal.

[0013] 2. The collection box of the collection and filtration mechanism corresponds to the drain outlet and can directly receive the discharged flocculents. At the same time, driven by the first rotating shaft, the cylindrical filter screen rotates with the limiting disc, which can filter the liquid containing flocculents. The filtered liquid is discharged through the drain pipe, realizing the simultaneous collection of flocculents and filtration of liquid, simplifying the processing procedure.

[0014] 3. The cleaning scraper on the collection box corresponds to the scraper and is at a certain angle. It can clean the flocculated material remaining on the surface of the scraper during the operation of the scraper, ensuring the scraping effect of the scraper. On the other hand, the electric telescopic rod on the support frame drives the rubber scraper to scrape the surface of the cylindrical filter screen, avoiding filter screen blockage, ensuring filtration efficiency, and thus ensuring the continuous and stable operation of the entire device. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of a floc removal device for an air flotation machine proposed in this utility model.

[0016] Figure 2 This is a side view of the floc removal device for an air flotation machine proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of the collection box of a flocculant removal device for an air flotation machine proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the floc removal mechanism of an air flotation machine floc removal device proposed in this utility model.

[0019] Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the attached diagram: 1. Air flotation unit housing; 2. Flocculant removal mechanism; 3. Collection and filtration mechanism; 4. Drive motor; 5. Second drive synchronous pulley; 6. Second driven synchronous pulley; 7. Second transmission belt; 201. First rotating shaft; 202. Second rotating shaft; 203. First transmission sprocket; 204. Second transmission sprocket; 205. Transmission chain; 206. Scraper; 207. Drain outlet; 301. Collection box; 302. Limiting disc; 303. Cylindrical filter screen; 304. Drain pipe; 305. Rotary drive rod; 306. First driven synchronous pulley; 307. First driving synchronous pulley; 308. First transmission belt; 309. Support frame; 310. Electric telescopic rod; 311. Rubber scraper; 312. Fixing frame; 313. Stain removal scraper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5A floc removal device for an air flotation machine comprises an air flotation machine housing 1, a floc removal mechanism 2, and a collection and filtration mechanism 3. The floc removal mechanism 2 is located at the top of the air flotation machine housing 1 and is used to remove flocs inside the air flotation machine housing 1. The collection and filtration mechanism 3 is located at the left end of the air flotation machine housing 1 and is used to collect and filter the flocs discharged from the air flotation machine housing 1.

[0023] The floc removal mechanism 2 includes a first rotating shaft 201, a second rotating shaft 202, a first transmission sprocket 203, a second transmission sprocket 204, a transmission chain 205, a scraper 206, and a drain outlet 207.

[0024] The first rotating shaft 201 and the second rotating shaft 202 are rotatably connected to the upper surface of the air flotation machine housing 1. They are parallel to each other and together support the transmission structure. Two first transmission sprockets 203 and two second transmission sprockets 204 are fixedly connected to the surfaces of the first rotating shaft 201 and the second rotating shaft 202, and the first transmission sprockets 203 and the second transmission sprockets 204 are distributed at a certain interval on the same rotating shaft.

[0025] A transmission chain 205 is installed between the first transmission sprockets 203 and between the second transmission sprockets 204 at corresponding positions. That is, one transmission chain 205 is sleeved on the first transmission sprockets 203 on the two first rotating shafts 201 and the second rotating shaft 202, and the other transmission chain 205 is sleeved on the second transmission sprockets 204 on the two first rotating shafts 201 and the second rotating shaft 202. This arrangement enables the two transmission chains 205 to operate synchronously.

[0026] Two scrapers 206 are fixedly installed on the surfaces of the two drive chains 205. The two scrapers 206 are distributed on the upper and lower surfaces of the drive chains 205 and are parallel to each other. This distribution method can scrape off the flocs in different positions inside the air flotation machine box 1, improving the comprehensiveness of the removal.

[0027] A drain port 207 is provided at the left end of the air flotation unit housing 1. The position of the drain port 207 corresponds to that of the scraper 206, ensuring that the flocculants scraped by the scraper 206 can be accurately discharged through the drain port 207. With this structural arrangement, when the first rotating shaft 201 and the second rotating shaft 202 rotate, they will drive the first transmission sprocket 203 and the second transmission sprocket 204 to rotate, which in turn drives the transmission chain 205 to rotate. This allows the scraper 206 to move within the air flotation unit housing 1, scraping off the flocculants and discharging them through the drain port 207, achieving efficient removal of flocculants and improving the efficiency and thoroughness of flocculant removal.

[0028] The collection and filtration mechanism 3 includes a collection box 301, a limiting disc 302, a cylindrical filter screen 303, a drain pipe 304, a rotary drive rod 305, a first driven synchronous pulley 306, a first drive synchronous pulley 307, a first transmission belt 308, a support frame 309, an electric telescopic rod 310, a rubber scraper 311, a fixing frame 312, and a dirt removal scraper 313.

[0029] The collection box 301 is fixedly connected to the left end of the air flotation unit housing 1, and its position corresponds to the drain port 207. It can directly receive the liquid containing flocculants discharged from the drain port 207. Two limiting discs 302 are symmetrically rotatably connected to the inner wall of the collection box 301. A cylindrical filter screen 303 is fixedly connected between the two limiting discs 302. The cylindrical filter screen 303 can rotate inside the collection box 301 under the drive of the two limiting discs 302 to filter the liquid entering the collection box 301.

[0030] Two limiting discs 302 are respectively fixedly connected to a drain pipe 304 and a rotary drive rod 305 on their respective surfaces away from each other. The end of the drain pipe 304 away from the cylindrical filter screen 303 extends to the outside of the collection box 301 to discharge the filtered liquid from the collection box 301. One end of the rotary drive rod 305 extends to the outside of the collection box 301 and is fixedly connected to a first driven synchronous wheel 306.

[0031] A first drive synchronous pulley 307 is fixedly connected to the end of the first rotating shaft 201. The position of the first drive synchronous pulley 307 corresponds to the first driven synchronous pulley 306, and a first transmission belt 308 is installed between the two. Through the transmission action of the first transmission belt 308, when the first rotating shaft 201 rotates, it can drive the rotating drive rod 305 to rotate, thereby driving the limiting disc 302 and the cylindrical filter screen 303 to rotate.

[0032] Both the drain pipe 304 and the rotary drive rod 305 are rotatably connected to the inner wall of the collection box 301 via sealed bearings, ensuring the sealing of the collection box 301 and preventing liquid leakage. A support frame 309 is fixedly connected to the upper surface of the collection box 301. Two electric telescopic rods 310 are fixedly connected to the upper surface of the support frame 309. The telescopic ends of the two electric telescopic rods 310 extend to the bottom of the support frame 309 and are fixed with rubber scrapers 311. The rubber scrapers 311 are located directly above the cylindrical filter screen 303. The electric telescopic rods 310 can drive the rubber scrapers 311 to move up and down to scrape the surface of the cylindrical filter screen 303, preventing filter screen blockage and ensuring filtration efficiency.

[0033] Two fixed brackets 312 are symmetrically arranged on the upper surface of the collection box 301. A cleaning scraper 313 is fixedly connected between the two fixed brackets 312. The position of the cleaning scraper 313 corresponds to that of the scraper 206, and the cleaning scraper 313 and the scraper 206 maintain a certain tilt angle. During the operation of the scraper 206, the cleaning scraper 313 can clean the flocculated material remaining on its surface to ensure the scraping effect of the scraper 206.

[0034] By setting up the collection and filtration mechanism 3, the collection box 301 can directly receive the discharged flocculents. At the same time, driven by the first rotating shaft 201, the cylindrical filter screen 303 rotates with the limiting disc 302 to filter the liquid containing flocculents. The filtered liquid is discharged through the drain pipe 304, realizing the simultaneous collection of flocculents and filtration of liquid, simplifying the processing procedure. The setting of the cleaning scraper 313 and the rubber scraper 311 further ensures the continuous and stable operation of the entire device.

[0035] A drive box is fixedly connected to the back of the air flotation unit housing 1. A drive motor 4 is fixedly installed on the inner wall of the drive box. A second drive synchronous pulley 5 is fixedly connected to the rotating shaft of the drive motor 4. A second driven synchronous pulley 6 is fixedly connected to one end of the first rotating shaft 201. The second drive synchronous pulley 5 and the second driven synchronous pulley 6 are connected by a second transmission belt 7. The drive motor 4 provides power to the entire device. Through the transmission action of the second drive synchronous pulley 5, the second driven synchronous pulley 6, and the second transmission belt 7, it drives the first rotating shaft 201 to rotate, thereby driving the floc removal mechanism 2 and the collection and filtration mechanism 3 to operate.

[0036] Working principle: In operation, the drive motor 4 is started, and the rotating shaft of the drive motor 4 drives the second drive synchronous pulley 5 to rotate. The second drive synchronous pulley 5 drives the second driven synchronous pulley 6 to rotate through the second transmission belt 7, thereby causing the first rotating shaft 201 to rotate. When the first rotating shaft 201 rotates, the first transmission sprocket 203 and the second transmission sprocket 204 on its surface rotate accordingly. Through the transmission chain 205, they drive the corresponding sprockets on the second rotating shaft 202 to rotate, causing the transmission chain 205 to rotate, which in turn drives the scraper 206 fixed on the transmission chain 205 to move. During the movement, the scraper 206 scrapes off the flocs in the air flotation chamber 1. The scraped flocs are transported to the drain outlet 207 as the scraper 206 moves, and then discharged into the collection box 301 through the drain outlet 207.

[0037] On the other hand, when the first rotating shaft 201 rotates, the first driving synchronous wheel 307 at its end rotates accordingly, driving the first driven synchronous wheel 306 to rotate via the first transmission belt 308, which in turn causes the rotating drive rod 305 to rotate. The rotating drive rod 305 drives the limiting disc 302 and the cylindrical filter screen 303 to rotate within the collection box 301. The liquid containing flocculants entering the collection box 301 is filtered by the cylindrical filter screen 303, and the filtered liquid is discharged from the collection box 301 through the drain pipe 304, while the flocculants are retained within the cylindrical filter screen 303.

[0038] During device operation, when the scraper 206 rotates to contact the cleaning scraper 313, the cleaning scraper 313 cleans the residual flocculent material on the surface of the scraper 206 due to the certain tilt angle between them, ensuring the subsequent scraping effect of the scraper 206. Simultaneously, the electric telescopic rod 310 can be controlled to extend and retract, driving the rubber scraper 311 to move up and down. The rubber scraper 311 contacts the surface of the rotating cylindrical filter screen 303, scraping away the flocculent material trapped on the surface of the cylindrical filter screen 303, preventing clogging and ensuring filtration efficiency.

[0039] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An air flotation machine floe removal device, comprising an air flotation machine tank (1), characterized in that, The top of the air flotation machine housing (1) is provided with a floc removal mechanism (2), and the left end of the air flotation machine housing (1) is provided with a collection and filtration mechanism (3). The floc removal mechanism (2) includes a first rotating shaft (201) and a second rotating shaft (202) rotatably connected to the upper surface of the air flotation machine housing (1). The surfaces of the first rotating shaft (201) and the second rotating shaft (202) are fixedly connected to two first transmission sprockets (203) and two second transmission sprockets (204). A transmission chain (205) is installed between the first transmission sprockets (203) and the second transmission sprockets (204). Two scrapers (206) are fixedly installed on the surfaces of the two transmission chains (205). A drain port (207) is opened at the left end of the air flotation machine housing (1). The position of the drain port (207) corresponds to the scraper (206). The two scrapers (206) are distributed on the upper and lower surfaces of the transmission chain (205).

2. An air flotation machine floe removal device according to claim 1 wherein, The collection and filtration mechanism (3) includes a collection box (301) fixedly connected to the left end of the air flotation machine housing (1). The position of the collection box (301) corresponds to the drain outlet (207). The inner wall of the collection box (301) is symmetrically connected to two limiting discs (302). A cylindrical filter screen (303) is fixedly connected between the two limiting discs (302). A drain pipe (304) and a rotating drive rod (305) are fixedly connected to the surfaces of the two limiting discs (302) that are far apart from each other.

3. An air flotation machine floe removal device according to claim 2 wherein, The drain pipe (304) extends away from the cylindrical filter screen (303) to the outside of the collection box (301). The drain pipe (304) and the rotary drive rod (305) are rotatably connected to the inner wall of the collection box (301) through sealed bearings. One end of the rotary drive rod (305) extends to the outside of the collection box (301) and is fixedly connected to a first driven synchronous pulley (306). The end of the first rotating shaft (201) is fixedly connected to a first driving synchronous pulley (307). The position of the first driving synchronous pulley (307) corresponds to that of the first driven synchronous pulley (306), and a first transmission belt (308) is installed between the first driving synchronous pulley (307) and the first driven synchronous pulley (306).

4. An air flotation machine floe removal device according to claim 3 wherein, The upper surface of the collection box (301) is fixedly connected to a support frame (309), and the upper surface of the support frame (309) is fixedly connected to two electric telescopic rods (310). The telescopic ends of the two electric telescopic rods (310) extend to the bottom of the support frame (309) and are fixed with rubber scrapers (311). The rubber scrapers (311) are located directly above the cylindrical filter screen (303).

5. An air flotation machine floe removal device according to claim 4 wherein, The upper surface of the collection box (301) is symmetrically provided with two fixing frames (312), and a cleaning scraper (313) is fixedly connected between the two fixing frames (312). The position of the cleaning scraper (313) corresponds to the scraper (206), and the cleaning scraper (313) and the scraper (206) maintain an inclined angle.

6. An air flotation machine floe removal device according to claim 5 wherein, A drive box is fixedly connected to the back of the air flotation machine housing (1). A drive motor (4) is fixedly installed on the inner wall of the drive box. A second drive synchronous pulley (5) is fixedly connected to the rotating shaft of the drive motor (4). A second driven synchronous pulley (6) is fixedly connected to one end of the first rotating shaft (201). The second drive synchronous pulley (5) and the second driven synchronous pulley (6) are connected by a second transmission belt (7).

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