A floatation tank bottom sludge suction device

Abstract

The utility model relates to sewage treatment equipment technical field especially relates to a kind of sludge suction device at air flotation tank bottom, including air flotation tank, carrier plate, driving motor and suction mechanism, the air flotation tank is the rectangular cavity structure of upper opening, and air flotation tank upper portion is provided with carrier plate and driving motor, driving motor is connected with suction mechanism by steel wire rope;The suction mechanism includes rack, support frame, flow guide pump, first scraper, second scraper and first flow guide pipe, the upper portion of rack is provided with support frame, and the upper portion of support frame is provided with flow guide pump, the both sides of flow guide pump are connected with the first scraper and second scraper through second flow guide pipe and third flow guide pipe respectively Hole is connected;The first flow guide pipe is set on the discharge port of flow guide pump.The utility model can carry out automatic scraping to the sludge at air flotation tank bottom, and the sludge accumulated is adsorbed by suction equipment, to realize automatic cleaning.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to a sludge suction device at the bottom of an air flotation tank. Background Technology

[0002] During the wastewater treatment process in the flotation tank, some suspended particles and colloidal substances in the wastewater float to the surface and are removed as scum under the action of flotation. However, a large number of dense sludge particles will gradually settle at the bottom of the tank. If these deposited sludge particles are not cleaned in time, they will not only occupy the effective volume of the tank and affect the wastewater treatment efficiency, but may also cause anaerobic reactions due to long-term accumulation, producing odors and releasing harmful substances, causing secondary pollution to the treated water.

[0003] Currently, the treatment of sludge at the bottom of dissolved air flotation (DAF) tanks largely relies on manual operation. Workers must first empty the tank of wastewater, then enter and manually clean and remove the sludge using high-pressure water guns and scrapers. However, this method has significant drawbacks: the sludge at the bottom often has high water content, high viscosity, and uneven distribution. Manual scraping and cleaning are labor-intensive, involve harsh working conditions, are time-consuming and labor-intensive, and make it difficult to ensure thorough cleaning, with sludge easily accumulating in some corners. Furthermore, manual operation poses safety hazards; the tank interior may develop an oxygen-deficient environment due to prolonged confinement, threatening the health of workers. With the increasing demand for automation and high efficiency in the wastewater treatment industry, traditional manual sludge removal methods are no longer sufficient to meet the requirements of modern wastewater treatment processes. Therefore, a device was designed that can automatically scrape and suction the sludge at the bottom of the DAF tank. This device can automatically scrape the sludge at the bottom of the DAF tank and then use a suction device to adsorb the accumulated sludge, thus achieving automated cleaning. Utility Model Content

[0004] The purpose of this utility model is to provide a sludge suction device at the bottom of an air flotation tank, which can automatically scrape the sludge at the bottom of the air flotation tank and adsorb the accumulated sludge through a suction device, thereby achieving automated cleaning.

[0005] The technical implementation scheme of this utility model is as follows:

[0006] A sludge suction device for the bottom of an air flotation tank includes an air flotation tank, a carrying plate, a drive motor, and a suction mechanism. The air flotation tank is a rectangular cavity structure with an open top, and the carrying plate and drive motor are installed at the top of the air flotation tank. The drive motor is connected to the suction mechanism via a steel wire rope. The suction mechanism includes a frame, a support frame, a guide pump, a first scraper, a second scraper, and a first guide pipe. The support frame is installed at the top of the frame, and the guide pump is installed at the top of the support frame. The two sides of the guide pump are connected to the through holes of the first and second scrapers via second and third guide pipes, respectively. The first guide pipe is installed at the discharge port of the guide pump. A connecting plate is installed at the top of the frame, and the connecting hole of the connecting plate is connected to the steel wire rope.

[0007] Optionally, the bottom of the frame is provided with casters.

[0008] Optionally, a scraping bin is provided at the bottom of the first scraper, and the second guide pipe is connected to the scraping bin.

[0009] Optionally, the upper part of the carrier plate is provided with a rectangular opening, and fixed ears are provided on both sides of the rectangular opening. A winding wheel is provided on the rotating shaft in the middle of the two fixed ears, and the rotating shaft is connected to the output shaft of the drive motor through a coupling.

[0010] Optionally, a first connecting rod is provided at the bottom of the carrying plate, and a first auxiliary wheel at the bottom of the first connecting rod is connected to a wire rope.

[0011] Optionally, a second connecting rod is provided on one side of the first connecting rod, and a second auxiliary wheel at the bottom of the second connecting rod is connected to the wire rope.

[0012] Optionally, the upper part of the carrier plate is provided with a plurality of rectangular openings.

[0013] Optionally, the upper part of the winding reel is connected to the wire rope.

[0014] This utility model has the following advantages:

[0015] This invention incorporates a suction mechanism inside the flotation tank, which automatically scrapes the sludge accumulated at the bottom of the tank. The sludge is then pumped out to the outside by a guide pump. The frame has wheels at the bottom for movement along the bottom of the flotation tank, while two scrapers on the upper part scrape the sludge during movement, facilitating subsequent pumping. The entire frame is moved by a drive motor and steel cables to achieve the sludge scraping operation, thus automating the process and reducing labor intensity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a top view of the present invention.

[0018] Figure 3 This is a structural schematic diagram of the first connecting rod part of this utility model.

[0019] Figure 4 This is a schematic diagram of the suction mechanism of this utility model.

[0020] The meanings of the reference numerals in the figure are as follows: 1-Air flotation tank, 2-Carrier plate, 3-Drive motor, 4-Winding wheel, 5-Suction mechanism, 501-Frame, 502-Connecting plate, 503-Support frame, 504-Guide pump, 505-Second guide pipe, 506-First scraper, 507-Rotating wheel, 508-Second scraper, 509-Third guide pipe, 510-First guide pipe, 6-Wire rope, 7-First connecting rod, 8-First auxiliary wheel, 9-Second connecting rod, 10-Second auxiliary wheel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0022] like Figures 1-4 The aforementioned sludge suction device at the bottom of an air flotation tank includes an air flotation tank 1, a carrying plate 2, a drive motor 3, and a suction mechanism 5. The air flotation tank 1 is a rectangular cavity structure with an open top, and the carrying plate 2 and drive motor 3 are installed on the upper part of the air flotation tank 1. The drive motor 3 is connected to the suction mechanism 5 via a steel wire rope 6. The suction mechanism 5 includes a frame 501, a support frame 503, a flow pump 504, a first scraper 506, a second scraper 508, and a first flow guide pipe 510. The frame 501... A support frame 503 is provided on the upper part, and a guide pump 504 is provided on the upper part of the support frame 503. The two sides of the guide pump 504 are connected to the through holes of the first scraper 506 and the second scraper 508 through the second guide pipe 505 and the third guide pipe 509, respectively. A first guide pipe 510 is provided on the discharge port of the guide pump 504. A connecting plate 502 is provided on the upper part of the frame 501, and the connecting hole of the connecting plate 502 is connected to the wire rope 6. A wheel 507 is provided at the bottom of the frame 501.

[0023] It should be noted that dissolved air flotation (DAF) tanks are one of the important pieces of equipment in wastewater treatment. However, after prolonged use, sludge will accumulate at the bottom of the DAF tank. If it is not cleaned in time, it will affect the capacity of the entire DAF tank and thus the treatment efficiency. Therefore, manual cleaning is required after a period of time. This process is labor-intensive and requires frequent cleaning. Based on this, a sludge suction device for the bottom of the DAF tank has been optimized and designed to achieve automated cleaning.

[0024] It should be further explained that a suction mechanism 5 is set at the bottom of the flotation tank 1, which is connected to the drive motor 3 via a steel wire rope 6, thereby moving under the drive of the drive motor 3. The frame 501 is equipped with a first scraper 506 and a second scraper 508, both of which can scrape and aggregate the sludge at the bottom of the flotation tank 1 during the movement of the frame 501. The sludge is then sucked out by the guide pump 504 above it and discharged to the outside through the first guide pipe 510, completing the automated cleaning operation. This method is not only relatively simple in structure, but also highly automated, and can automatically operate after each bottom water purification.

[0025] like Figures 1-4 As shown, a scraping bin is provided at the bottom of the first scraper 506, and the second guide pipe 505 is connected to the scraping bin.

[0026] It should be noted that both the first scraper 506 and the second scraper 508 are rectangular cavity structures with one end open. They are equipped with scraping bins, and guide pipes are installed on the scraping bins to connect with the guide pump 504. The scraped material is then pumped out by the guide pump 504.

[0027] like Figures 1-4 As shown, the upper part of the carrying plate 2 is provided with a rectangular opening, and fixed ears are provided on both sides of the rectangular opening. A winding wheel 4 is provided on the rotating shaft in the middle of the two fixed ears. The rotating shaft is connected to the output shaft of the drive motor 3 through a coupling. The bottom of the carrying plate 2 is provided with a first connecting rod 7, and the first auxiliary wheel 8 at the bottom of the first connecting rod 7 is connected to the wire rope 6. A second connecting rod 9 is provided on one side of the first connecting rod 7, and the second auxiliary wheel 10 at the bottom of the second connecting rod 9 is connected to the wire rope 6. The upper part of the carrying plate 2 is provided with several rectangular openings. The upper part of the winding wheel 4 is connected to the wire rope 6.

[0028] It should be noted that, in order to achieve the slow movement of the frame 501 at the bottom of the pool, this embodiment adopts the following structural design: the frame 501 is fixedly connected to the wire rope 6 through the connecting plate 502 on it, and the other end of the wire rope 6 is connected to the drive motor 3. The drive force of the drive motor 3 drives the wire rope 6 to pull the frame 501 to move.

[0029] Meanwhile, to ensure that the wire rope 6 remains parallel during traction and to improve the stability and smoothness of traction, a first connecting rod 7 and a second connecting rod 9 are provided at the bottom of the load plate 2. The first connecting rod 7 is equipped with a first auxiliary wheel 8, and the second connecting rod 9 is equipped with a second auxiliary wheel 10. Both the first auxiliary wheel 8 and the second auxiliary wheel 10 are in contact with the turning point of the wire rope 6.

[0030] With the above structure, when the drive motor 3 works and pulls the wire rope 6, the first auxiliary wheel 8 and the second auxiliary wheel 10 can support and guide the turning part of the wire rope 6, effectively preventing the wire rope 6 from deviating or twisting during the traction process, ensuring that the entire wire rope 6 is in a parallel state, so that the frame 501 can be pulled and moved smoothly and steadily at the bottom of the pool.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A sludge pumping device for the bottom of a flotation tank, comprising a flotation tank (1), a carrier plate (2), a driving motor (3) and a pumping mechanism (5), characterized in that, The flotation tank (1) is a rectangular cavity structure with an opening at the top, and a carrying plate (2) and a drive motor (3) are provided at the top of the flotation tank (1). The drive motor (3) is connected to the suction mechanism (5) through a steel wire rope (6). The suction mechanism (5) includes a frame (501), a support frame (503), a flow pump (504), a first scraper (506), a second scraper (508), and a first flow pipe (510). The upper part of the frame (501) is provided with a support frame (503), and the upper part of the support frame (503) is provided with a flow pump (504). The two sides of the flow pump (504) are connected to the through holes of the first scraper (506) and the second scraper (508) through the second flow pipe (505) and the third flow pipe (509), respectively. A first guide pipe (510) is provided on the discharge port of the guide pump (504). A connecting plate (502) is provided on the upper part of the frame (501), and the connecting hole of the connecting plate (502) is connected to the wire rope (6).

2. A device for pumping sludge from the bottom of an air flotation tank according to claim 1, characterized in that The bottom of the frame (501) is provided with a wheel (507).

3. A device for pumping sludge from the bottom of an air flotation tank according to claim 1, characterized in that The bottom of the first scraper (506) is provided with a scraping bin, and the second guide pipe (505) is connected to the scraping bin.

4. A device for pumping sludge from the bottom of an air flotation tank according to claim 1, characterized in that The upper part of the loading plate (2) is provided with a rectangular opening, and fixed ears are provided on both sides of the rectangular opening. A winding wheel (4) is provided on the rotating shaft in the middle of the two fixed ears. The rotating shaft is connected to the output shaft of the drive motor (3) through a coupling.

5. A device for pumping sludge from the bottom of an air flotation tank according to claim 1, characterized in that The bottom of the loading plate (2) is provided with a first connecting rod (7), and the first auxiliary wheel (8) at the bottom of the first connecting rod (7) is connected to the wire rope (6).

6. A floatation tank bottom sludge suction apparatus according to claim 5, wherein A second connecting rod (9) is provided on one side of the first connecting rod (7), and the second auxiliary wheel (10) at the bottom of the second connecting rod (9) is connected to the wire rope (6).

7. A device for pumping sludge from the bottom of an air flotation tank according to claim 1, characterized in that The upper part of the carrier plate (2) is provided with several rectangular openings.

8. A floatation tank bottom sludge suction apparatus according to claim 4, wherein The upper part of the winding wheel (4) is connected to the wire rope (6).

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