CN221788279U - Automatic cleaning device suitable for sedimentation tank of sewage treatment plant - Google Patents

Abstract

The utility model relates to an automatic cleaning device suitable for a sedimentation tank of a sewage treatment plant, wherein moving devices (7-3) are arranged on two sides of a bottom cleaning host (7-1), a negative pressure sewage suction cavity (7-5) is concavely arranged at the lower part of the bottom cleaning host (7-1), a sewage scraping shifting wheel (7-4) is arranged at the front and back of the negative pressure sewage suction cavity (7-5) through a rotating shaft, a sewage scraping shifting wheel driving motor (7-2) arranged at the upper part of the bottom cleaning host (7-1) drives the sewage scraping shifting wheel (7-4) to rotate through a conical gear and a transmission shaft, a moving device driving motor (7-6) arranged in the bottom cleaning host (7-1) through a bracket drives the moving device (7-3) through the rotating shaft, the gear and a chain, and the top of the negative pressure sewage suction cavity (7-5) is communicated with a negative pressure sewage discharge pipe (6); the travelling crane (3) and the pool bottom cleaning host (7-1) are internally provided with the gyroscope and the geomagnetic sensor, so that sediment at the bottom of the sedimentation pool can be cleaned when the sedimentation pool works, and the working efficiency of the sedimentation pool can be effectively improved.

Description

Automatic cleaning device for sedimentation tanks in sewage treatment plants

Technical Field

The utility model relates to sedimentation tank cleaning equipment, in particular to an automatic cleaning device suitable for sedimentation tanks in sewage treatment plants.

Background Art

In the water treatment industry, various types of sedimentation tanks are used in both water supply units and drainage units. Sedimentation tanks mainly use gravity to separate solid particles in the water, thereby purifying the water quality. Commonly used sedimentation tanks include horizontal flow sedimentation tanks, radial flow sedimentation tanks, vertical flow sedimentation tanks, and inclined tube (inclined plate) sedimentation tanks. Among them, the horizontal flow sedimentation tank has the widest application range due to its strong adaptability to water treatment, great potential, stable effect, convenient operation and management, low cost, local materials and simple construction. However, its sludge discharge capacity is poor, and it needs to stop working every once in a while to discharge sludge, which affects the efficiency of sewage treatment.

At present, the utility model with patent number CN208726817U discloses a horizontal flow sedimentation tank for sewage treatment, and in particular, relates to a horizontal flow sedimentation tank for sewage treatment. The technical problem to be solved by the utility model is to provide a horizontal flow sedimentation tank for sewage treatment that can effectively remove waste residues floating on the water surface. A horizontal flow sedimentation tank for sewage treatment includes a sedimentation tank body, a water inlet pipe, a mud discharge pipe, a fixed plate, a first fixed rod, a slag removal mechanism, etc.; and the water inlet pipe is connected to the sedimentation tank body; a mud discharge pipe is provided on one side of the sedimentation tank body, and the mud discharge pipe is located at the bottom of the sedimentation tank body; the first baffle is fixed to the inner bottom of the sedimentation tank body; and a drainage pipe is provided on the other side of the sedimentation tank body. The utility model achieves the effect of effectively removing waste residues floating on the water surface. However, the patent itself has made major changes to the sedimentation tank and can only be used in newly built sedimentation tanks. At the same time, the patent itself also has a relatively flat part of the pool bottom. This part of the pool bottom will also have some sediment during long-term use and also needs to be cleaned regularly. In addition, its waterproof pump is under the water surface of the sewage tank for a long time. Once damaged, the sedimentation tank needs to be stopped and the water pump needs to be disassembled for replacement or repair, which is not very convenient to use.

Summary of the invention

In view of the problems existing in the above-mentioned prior art, the utility model provides an automatic cleaning device suitable for a sedimentation tank in a sewage treatment plant, which can clean the sediment at the bottom of the sedimentation tank when the sedimentation tank is working, and can effectively improve the working efficiency of the sedimentation tank.

In order to achieve the above-mentioned purpose, the utility model is applicable to the automatic cleaning device of the sedimentation tank of the sewage treatment plant, comprising a mobile base, a gantry, a crane, a winch, a negative pressure sewage pump and a negative pressure sewage pipe and a pool bottom cleaning unit, the mobile base is fixedly installed at the lower ends of the two supporting legs of the gantry, the mobile base is equipped with hard tires, the crane moves on the track on the upper part of the gantry, the crane is connected to the pool bottom cleaning unit through the steel cable of the winch, a negative pressure sewage pump is fixedly installed on the side of the crane, the sewage inlet of the negative pressure sewage pump is connected to the pool bottom cleaning unit through the negative pressure sewage pipe, and the sewage outlet is connected to the sewage pipe; the pool bottom cleaning unit also comprises a scraper wheel driving motor, a moving device, a scraper wheel, a scraper wheel, a negative pressure sewage pump ... Wheel, negative pressure sewage suction chamber and action device driving motor, the front and rear of the pool bottom cleaning main unit are fixed with counterweight mounting frames by screws, the action devices are installed on both sides of the pool bottom cleaning main unit, the lower part of the pool bottom cleaning main unit is recessed inwardly with a negative pressure sewage suction chamber, the front and rear of the negative pressure sewage suction chamber are equipped with scraping wheels through a rotating shaft, the scraping wheel driving motor installed on the upper part of the pool bottom cleaning main unit drives the scraping wheel to rotate through a bevel gear and a transmission shaft, the action device driving motor installed inside the pool bottom cleaning main unit through a bracket drives the action device through a rotating shaft, a sprocket and a chain, the top of the negative pressure sewage suction chamber is connected to a negative pressure sewage discharge pipe; the driving crane and the pool bottom cleaning main unit both have built-in gyroscopes and geomagnetic sensors.

In addition, the automatic cleaning device for a sedimentation tank in a sewage treatment plant according to the above embodiment of the utility model may also have the following additional technical features:

As a further improvement of the present utility model, the moving device is a driving wheel cover track.

As a further improvement of the present utility model, the track shoes of the moving device are all provided with anti-skid teeth.

As a further improvement of the present invention, the negative pressure sewage pipe is a double-layer structure, and a spiral metal rib ring is preset inside.

As a further improvement of the utility model, the legs of the gantry are hydraulic columns.

As a further improvement of the present invention, the movable base moves on rails.

Through the above scheme, the utility model has at least the following advantages: compared with the conventional sedimentation tank that needs to be closed for cleaning, a bottom cleaning unit of the sedimentation tank can be used for cleaning underwater to clean the sewage when the sedimentation tank is working normally, and the corresponding equipment is suspended by the gantry to support the operation of the bottom cleaning unit. At the same time, the bottom cleaning unit can be lifted out of the sedimentation tank at the end of cleaning, and the bottom cleaning unit can be placed on the ground for maintenance. The sediment at the bottom of the sedimentation tank can be cleaned while the sedimentation tank is working, which can effectively improve the working efficiency of the sedimentation tank.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective schematic diagram of an automatic cleaning device applicable to a sedimentation tank in a sewage treatment plant;

FIG2 is a perspective view of a bottom cleaning unit of an automatic cleaning device for a sedimentation tank in a sewage treatment plant;

3 is a side cross-sectional view of a bottom cleaning unit of an automatic cleaning device for a sedimentation tank in a sewage treatment plant;

In the figure: 1. Mobile base, 2. Gantry, 3. Crane, 4. Winch, 5. Negative pressure sewage pump, 6. Negative pressure sewage pipe, 7. Pool bottom cleaning unit, 7-1. Pool bottom cleaning main unit, 7-2. Scraping wheel drive motor, 7-3. Action device, 7-4. Scraping wheel, 7-5. Negative pressure sewage suction chamber, 7-6. Action device drive motor, 7-7. Counterweight mounting frame.

DETAILED DESCRIPTION

The following describes an automatic cleaning device for a sedimentation tank in a sewage treatment plant according to an embodiment of the utility model with reference to the accompanying drawings.

In a specific embodiment of the present application, as shown in Figures 1 to 3, it includes a mobile base 1, a gantry 2, a crane 3, a winch 4, a negative pressure sewage pump 5, a negative pressure sewage pipe 6 and a pool bottom cleaning unit 7. The mobile base 1 is fixedly installed at the lower ends of the two supporting legs of the gantry 2. The mobile base 1 is equipped with hard tires. The crane 3 moves on the track on the upper part of the gantry 2. The crane 3 is connected to the pool bottom cleaning unit 7 through the steel cable of the winch 4. A negative pressure sewage pump 5 is fixedly installed on the side of the crane 3, and the sewage inlet of the negative pressure sewage pump 5 is connected to the pool bottom through the negative pressure sewage pipe 6. The cleaning unit 7 has a sewage outlet connected to a sewage pipe. The gantry 2 can follow the pool bottom cleaning unit 7 with a winch 4 and a negative pressure drainage pump 5 through a traveling crane 3, and always provide sewage discharge support for the pool bottom cleaning unit 7; the pool bottom cleaning unit 7 also includes a scraping wheel drive motor 7-2, a moving device 7-3, a scraping wheel 7-4, a negative pressure suction chamber 7-5 and a moving device drive motor 7-6. The pool bottom cleaning main unit 7-1 is fixed with a counterweight mounting frame 7-7 by screws at the front and rear. The counterweight mounting frame 7-7 can lift the weight of the pool bottom cleaning unit 7, so that The pool bottom cleaning unit 7 is better sunken at the bottom of the sedimentation tank to facilitate its cleaning work. The action devices 7-3 are installed on both sides of the pool bottom cleaning main unit 7-1. The action device 7-3 and the pool bottom cleaning main unit 7-1 are recessed inwardly and provided with a negative pressure suction chamber 7-5. The negative pressure suction chamber 7-5 is equipped with a scraper wheel 7-4 through a rotating shaft in front and behind. The scraper wheel drive motor 7-2 installed on the upper part of the pool bottom cleaning main unit 7-1 drives the scraper wheel 7-4 to rotate through a bevel gear and a transmission shaft. The action device 7-3 is installed inside the pool bottom cleaning main unit 7-1 through a bracket. The driving motor 7-6 drives the action device 7-3 through the rotating shaft, sprocket and chain, and the top of the negative pressure suction chamber 7-5 is connected to the negative pressure sewage discharge pipe 6; the traveling crane 3 and the pool bottom cleaning host 7-1 are both equipped with built-in gyroscopes and geomagnetic sensors. The traveling crane 3 and the pool bottom cleaning host 7-1 calculate the relative position between the traveling crane 3 and the pool bottom cleaning host 7-1 through the built-in gyroscopes and geomagnetic sensors, so that the traveling crane 3 can better follow the pool bottom cleaning host 7-1, and control the pool bottom cleaning host 7-1 through the traveling crane 3 to perform regular sewage cleaning work at the bottom of the sedimentation tank.

The utility model number is CN208726817U, a horizontal flow sedimentation tank for sewage treatment (hereinafter referred to as "the patent"). The patent itself has made major changes to the sedimentation tank and can only be used in newly built sedimentation tanks. At the same time, the patent itself also has a relatively flat part of the bottom of the pool. This part of the bottom of the pool will also have some sediment in long-term use and needs to be cleaned regularly. In addition, its waterproof pump is under the water surface of the sewage tank for a long time. Once it is damaged, the sedimentation tank needs to be stopped and the water pump needs to be disassembled for replacement or maintenance. It is not very convenient to use. However, the patent periodically puts the bottom cleaning unit 7 into the sedimentation tank to continue to clean the sludge. The bottom cleaning unit 7 is automatically The action device driving motor 7-6 drives the action device 7-3 to enable the pool bottom cleaning unit 7 to move on the bottom of the sedimentation tank full of sludge, and when moving, the scraper wheel driving motor 7-2 drives the two scraper wheels 7-4 to push the sludge outside the pool bottom cleaning main unit 7-1 into the negative pressure suction chamber 7-5, and then the negative pressure sewage pump 5 sucks the sludge in the negative pressure suction chamber 7-5 of the pool bottom cleaning unit 7 through the negative pressure sewage pipe 6 and discharges it from the sedimentation tank, and then transports the sludge to other processing stations. After the pool bottom cleaning unit 7 is cleaned, the winch 4 can lift the pool bottom cleaning unit 7 out of the sedimentation tank through the wire rope, carry out corresponding maintenance and repair, and wait for the next use.

The second embodiment is based on the first embodiment, and the other structures are the same. The only difference is that, as shown in Figures 1 and 2, the action device 7-3 is a drive wheel cover track, which can effectively prevent the pool bottom cleaning unit 7 from sinking into the sludge.

In order to further optimize the working efficiency of the present application and to further improve the mobility, the track shoes of the said action device 7-3 are all provided with anti-skid teeth. In order to ensure that the negative pressure sewage pipe 6 can work normally and maintain a certain degree of telescopic performance, the said negative pressure sewage pipe 6 is a double-layer structure, and a spiral metal rib ring is preset inside. In order to further cooperate with the work of the pool bottom cleaning unit 7, the legs of the said gantry 2 are hydraulic columns. In order to improve the stability of the equipment, the said mobile base 1 moves on the rails.

When in use, install the automatic cleaning device suitable for the sedimentation tank of the sewage treatment plant, then lay rails or hardened pavement on both sides of the sedimentation tank, install this patent in place, connect the corresponding pipeline equipment and put it into use.

When the utility model is in use, the specific operations are as follows:

After the sedimentation tank has been working for a period of time, when it needs to be cleaned, the bottom cleaning unit 7 can be hoisted by the winch 4, the mobile base 1 drives the gantry 2 to move forward and backward, the driving crane 3 drives the bottom cleaning unit 7 to move left and right, the mobile base 1 and the driving crane 3 together bring the bottom cleaning unit 7 to the top of the sedimentation tank, the winch 4 puts the bottom cleaning unit 7 into the sedimentation tank, and the bottom cleaning unit 7 sinks to the bottom of the sedimentation tank under the action of the counterweight on the counterweight mounting frame 7-7, and the bottom cleaning unit 7 drives the action device 7-3 through its own action device driving motor 7-6 so that the bottom cleaning unit 7 can It can move at the bottom of the sedimentation tank full of sludge, and when moving, the scraper wheel driving motor 7-2 drives the two scraper wheels 7-4 to push the sludge outside the pool bottom cleaning main unit 7-1 into the negative pressure suction chamber 7-5, and then the negative pressure sewage pump 5 sucks the sludge in the negative pressure suction chamber 7-5 of the pool bottom cleaning unit 7 through the negative pressure sewage pipe 6 and discharges it from the sedimentation tank, and then transports the sludge to other processing stations. After the pool bottom cleaning unit 7 is cleaned, the winch 4 can lift the pool bottom cleaning unit 7 out of the sedimentation tank through the wire rope, carry out corresponding maintenance and repair, and wait for the next use.

If there are other equipment in the sedimentation tank that needs to be cleaned, the winch 4 can also appropriately lengthen the wire rope by virtue of the fact that the negative pressure sewage pipe 6 itself has a certain elasticity, so as to provide a certain operating space for the bottom cleaning unit 7 to work, so the bottom cleaning unit 7 can automatically travel a certain distance to enter under the equipment to perform the decontamination operation.

In summary, the automatic cleaning device suitable for the sedimentation tank of a sewage treatment plant according to the embodiment of the utility model is implemented by a bottom cleaning unit 7 which can perform cleaning underwater, so as to perform cleaning when the sedimentation tank is working normally, and the corresponding equipment is suspended by the gantry 2 to support the bottom cleaning unit 7 to work. At the same time, the bottom cleaning unit 7 can be lifted out of the sedimentation tank at the end of cleaning, and the bottom cleaning unit 7 can be placed on the ground for maintenance, so that the sediment at the bottom of the sedimentation tank can be cleaned when the sedimentation tank is working, thereby effectively improving the working efficiency of the sedimentation tank.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims (6)

1. An automatic cleaning device for a sedimentation tank in a sewage treatment plant, comprising a negative pressure sewage pump (5) and a negative pressure sewage pipe (6), characterized in that a mobile base (1) is fixedly installed at the lower ends of two supporting legs of a gantry (2), the mobile base (1) is equipped with hard tires, a traveling crane (3) moves on a track on the upper part of the gantry (2), the traveling crane (3) is connected to a pool bottom cleaning unit (7) through a steel cable of a winch (4), a negative pressure sewage pump (5) is fixedly installed on the side of the traveling crane (3), a sewage inlet of the negative pressure sewage pump (5) is connected to the pool bottom cleaning unit (7) through a negative pressure sewage pipe (6), and a sewage outlet is connected to the sewage pipe; the pool bottom cleaning unit (7) also comprises a scraping wheel driving motor (7-2), a moving device (7-3), a scraping wheel (7-4), a negative pressure sewage suction chamber (7-5) and a moving device driving motor (7-6), the pool bottom cleaning main The machine (7-1) is fixed with a counterweight mounting frame (7-7) by screws at the front and rear, and a motion device (7-3) is installed on both sides of the pool bottom cleaning main unit (7-1). The lower part of the pool bottom cleaning main unit (7-1) is recessed inwardly to provide a negative pressure suction chamber (7-5), and a scraping wheel (7-4) is installed at the front and rear of the negative pressure suction chamber (7-5) through a rotating shaft. The scraping wheel driving motor (7-2) installed at the upper part of the pool bottom cleaning main unit (7-1) drives the scraping wheel (7-4) to rotate through a bevel gear and a transmission shaft. The motion device driving motor (7-6) installed inside the pool bottom cleaning main unit (7-1) through a bracket drives the motion device (7-3) through a rotating shaft, a sprocket and a chain. The top of the negative pressure suction chamber (7-5) is connected to a negative pressure sewage discharge pipe (6); the crane (3) and the pool bottom cleaning main unit (7-1) are both equipped with a built-in gyroscope and a geomagnetic sensor. 2. The automatic cleaning device suitable for a sedimentation tank in a sewage treatment plant according to claim 1, characterized in that the moving device (7-3) is a drive wheel cover track. 3. The automatic cleaning device suitable for a sedimentation tank in a sewage treatment plant according to claim 2 is characterized in that the track shoes of the moving device (7-3) are all provided with anti-skid teeth. 4. The automatic cleaning device for a sedimentation tank in a sewage treatment plant according to claim 1 is characterized in that the negative pressure sewage discharge pipe (6) is a double-layer structure and a spiral metal rib ring is preset inside. 5. The automatic cleaning device for a sedimentation tank in a sewage treatment plant according to claim 1 or 4, characterized in that the legs of the gantry (2) are hydraulic columns. 6. The automatic cleaning device for a sedimentation tank in a sewage treatment plant according to claim 1, characterized in that the mobile base (1) moves on rails.