Suction device for waste filter material of sewage filter tank

Abstract

The utility model relates to sewage filtering technical field, specifically is a kind of sewage filtering tank waste filter material suction device. Device includes suction tank, separator, storage tank, sewage pump, water storage tank, hydraulic station, mobile chassis, water outlet valve, water inlet valve, drain valve, cleaning valve, feed liquid valve, jet gun, high-pressure hose. Among them, suction tank, separator, storage tank are interconnected and bear negative pressure, and sewage pump uses water circulation to provide negative pressure to realize suction filter material. The equipment of the suction device does not need to enter the filtering tank to work, and the operation control is convenient, safe and good in explosion-proof property, high in suction efficiency, low in manufacturing difficulty.

Description

Technical fields:

[0001] This utility model relates to the field of wastewater filtration technology, specifically a suction device for waste filter media in a wastewater filter tank. Background technology:

[0002] In the production processes of petrochemical and other fields, a large amount of wastewater needs to be treated, and wastewater filtration tanks are used. Currently, most wastewater filtration tanks in petrochemical and other fields use low-cost sand as the filter media. After a long period of use, a lot of oil and other impurities accumulate on the filter media, causing blockage of the filtration channels. Backwashing cannot remove the oil and other impurities, so it is necessary to remove the filter media and replace it with new one in a timely manner.

[0003] Currently, the waste filter media in wastewater filtration tanks in the petrochemical and other fields is mainly removed manually. This method is not only labor-intensive, but also poses a high safety risk due to the limited space containing oil and gas in the filtration tank.

[0004] Currently, mechanical loading and unloading systems for filter media have been developed, utilizing robots and self-adjusting screw conveyor components to replace manual entry into the filter tank for material removal. However, the limited manhole size of the filter tank restricts the size of the robot and conveyor used for loading, resulting in low operational efficiency for these mechanical loading and unloading systems. Furthermore, remote control of the robot and conveyor from outside the tank makes accurate movement difficult, increasing the risk of collisions with the tank walls, which still poses safety risks for oil and gas filter tanks with high explosion-proof requirements. Summary of the Invention:

[0005] To address the technical problems mentioned in the background above, this utility model provides a suction device for waste filter media in a sewage filtration tank. The device does not need to enter the tank. Instead, it uses a flexible hose outside the tank to suction the filter media with water out of the tank using the vacuum suction principle. At the same time, the filter media and water are separated outside the tank, and the water is pumped into the tank for circulation and rinsing.

[0006] Technical solution: A suction device for waste filter media in a wastewater filter tank, comprising a suction tank, a separator, a storage tank, a wastewater pump, and several valves and high-pressure hoses that are interconnected. The suction tank is a vertically mounted tank, consisting of a suction tank body, suction tank legs, a water inlet pipe, a drain pipe, a liquid feed pipe, and a liquid feed separator. The lower part of the suction tank body is conical to facilitate filter material discharge, and its lower opening connects to the low-level feed inlet of the separator. Four suction tank legs support the lower part of the suction tank body. The liquid feed pipe is located on the upper part of the suction tank body, while the water inlet pipe and the drain pipe are located on the side of the suction tank body. The liquid feed separator is vertically connected to the upper inner wall of the suction tank body, and its lower end is lower than the drain pipe to prevent the feed material from splashing directly into the drain pipe. The storage tank is a vertical tank installed at an inclination of 20° to 30°, and consists of a storage tank body, storage tank legs, a sealing cover, and a sealing ring; wherein, the upper opening of the storage tank body is connected to the high-level discharge port of the separator; when the four storage tank legs are supported on the storage tank body, they leave the sealing cover in place; the sealing cover and the sealing ring form the lower discharge sealing port of the storage tank; The separator is a sealed cylindrical screw conveyor type, arranged at an inclination of 30°~45°. The upward-facing lower feed inlet is connected to the suction tank, and the downward-facing upper discharge outlet is connected to the storage tank. Furthermore, the separator, the suction tank, and the storage tank are all configured as sealed structures that can withstand negative pressure. The sewage pump uses water circulation to provide negative pressure to the suction tank to achieve suction; the inlet of the sewage pump is connected to the drain pipe of the suction tank through a drain valve and a pipeline; the outlet of the sewage pump is connected to the inlet pipe of the suction tank through an inlet valve and a pipeline, and is connected to a high-pressure hose through a cleaning valve and a pipeline. The feed valve and pipeline are connected to the feed inlet pipe at the top of the suction tank; two high-pressure hoses are provided, one end of which is connected to the feed valve and the other end extends into the filter tank below the liquid surface for suction of water-containing filter media; the other high-pressure hose is connected to the cleaning valve and the other end extends into the filter tank for refilling water or cleaning the filter tank wall.

[0007] Furthermore, the suction device is equipped with a hydraulic station that drives a hydraulic motor and a hydraulic cylinder; wherein, the hydraulic motor is installed on the shaft end of the separator, serving as the driving force instead of the geared motor, thus preventing the motor from burning out due to jamming when the separator rotates; one end of the hydraulic cylinder is connected to the storage tank body of the storage tank, and the other end is connected to the sealing cover, controlling the opening and closing of the sealing cover.

[0008] Furthermore, the suction device is equipped with a water storage tank for holding clean water or chemicals; the water storage tank consists of a tank body, a water outlet pipe, a movable cover, and a stirrer; wherein, the water outlet pipe is located on the lower side of the tank body and is connected to the inlet of the sewage pump through a water outlet valve and a pipeline; the movable cover is located on the upper part of the tank body and is used for adding clean water or chemicals; the stirrer consists of a geared motor and a stirring paddle, and is used to stir the chemicals evenly when they are added.

[0009] Furthermore, the suction device is equipped with a mobile chassis that carries the equipment. By using other traction vehicles, the suction device can be towed to different filter tank sites, enabling material removal operations to be carried out at multiple sites.

[0010] Furthermore, the high-pressure hose connected to the cleaning valve is connected to a jet gun at its end for jet cleaning of the inner wall of the filter tank.

[0011] Compared with existing background technologies, the above-described at least one technical solution adopted in one or more embodiments of this specification can achieve the following beneficial effects: First, the suction device does not require operation inside the filter tank, making it convenient to operate and control from outside the tank. There are no moving or impacting parts inside the tank, ensuring good safety and explosion-proof performance. Second, the size of the suction device is not limited by the size of the filter tank's manhole, allowing for a larger suction tank and high filter material suction efficiency. Finally, the suction device does not require complex equipment such as robots, making it easy to manufacture.

[0012] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the present invention.

[0013] Other features and aspects of the present invention will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the technical solutions of the present invention.

[0015] Figure 1 A schematic diagram showing the suction device in a closed state during suction operation; Figure 2 This is a schematic diagram showing the filter material unloading state of the storage tank of the suction device; Figure 3 This is a schematic diagram of the suction canister of the suction device. Figure 4 This is a schematic diagram of the storage tank of the suction device; Figure 5 This is a schematic diagram of the water storage tank of the suction device.

[0016] In the diagram: 1-Suction Tank: 101-Suction Tank Body, 102-Suction Tank Leg, 103-Water Inlet Pipe, 104-Drain Pipe, 105-Liquid Material Pipe, 106-Liquid Material Divider; 2-Separator; 3-Storage Tank: 301-Storage Tank Body, 302-Storage Tank Leg, 303-Sealing Cover, 304-Sealing Ring, 305-Hydraulic Cylinder; 4-Sewage Pump; 5-Water Storage Tank: 501-Box Body, 502-Water Outlet Pipe, 503-Movable Cover, 504-Agitator; 6-Hydraulic Station; 7-Mobile Chassis; 8-Water Outlet Valve; 9-Water Inlet Valve; 10-Drain Valve; 11-Cleaning Valve; 12-Liquid Material Valve; 13-Jet Gun; 14-High Pressure Hose. Detailed Implementation

[0017] The various exemplary embodiments, features, and methods of use of this utility model will be described in detail below with reference to the accompanying drawings. The same reference numerals in the drawings denote elements with the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0018] Furthermore, to better illustrate this utility model, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this utility model can be implemented without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this utility model.

[0019] like Figure 1 and Figure 2 As shown, a waste filter media suction device for a wastewater filter tank includes a suction tank 1, a separator 2, a storage tank 3, a wastewater pump 4, a water storage tank 5, a hydraulic station 6, a mobile chassis 7, an outlet valve 8, an inlet valve 9, a drain valve 10, a cleaning valve 11, a liquid valve 12, a jet gun 13, and two high-pressure hoses 14.

[0020] like Figure 3 As shown, the suction tank 1 is a vertically placed tank, consisting of a suction tank body 101, suction tank legs 102, a water inlet pipe 103, a drain pipe 104, a liquid feed pipe 105, and a liquid feed separator 106. The lower part of the suction tank body 101 is conical to facilitate filter material discharge, and its lower opening communicates with the low-level feed inlet of the separator 2. Four suction tank legs 102 support the lower part of the suction tank body 101. The liquid feed pipe 105 is located on the upper part of the suction tank body 101, while the water inlet pipe 103 and the drain pipe 104 are located on the side of the suction tank body 101. The liquid feed separator 106 is vertically connected to the upper inner wall of the suction tank body 101, and its lower end is lower than the drain pipe 104 to prevent the feed from the liquid feed pipe 105 from splashing directly into the drain pipe 104.

[0021] like Figure 4As shown, the storage tank 3 is a vertical tank installed at an angle of 20-30°, and consists of a storage tank body 301, storage tank legs 302, a sealing cover 303, a sealing ring 304, and a hydraulic cylinder 305. The upper opening of the storage tank body 301 is connected to the high-level discharge port of the separator 2. When the four storage tank legs 302 are supported on the storage tank body 301, they allow the sealing cover 303 to be positioned. The sealing cover 303 and the sealing ring 304 form the lower discharge sealing port of the storage tank 3. One end of the hydraulic cylinder 305 is connected to the storage tank body 301 of the storage tank 3, and the other end is connected to the sealing cover 303, controlling the opening and closing of the sealing cover 303.

[0022] The separator 2 is a sealed cylindrical screw conveyor type, arranged at an inclination of 30°~45°. The upward-facing lower feed inlet is connected to the suction tank 1, and the downward-facing upper discharge outlet is connected to the storage tank 3. Furthermore, the separator 2, the suction tank 1, and the storage tank 3 are all configured as a sealed structure that can withstand negative pressure. The hydraulic station 6 drives a hydraulic motor and the hydraulic cylinder 305; wherein, the hydraulic motor is installed on the shaft end of the separator 2, and serves as the driving force to replace the geared motor, so as to avoid the separator 2 getting stuck and causing the motor to burn out when it rotates.

[0023] The sewage pump 4 uses water circulation to provide negative pressure to the suction tank 1 for suction. The inlet of the sewage pump 4 is connected to the drain pipe 104 of the suction tank 1 through the drain valve 10 and the pipeline. The outlet of the sewage pump 4 is connected to the inlet pipe 103 of the suction tank 1 through the inlet valve 9 and the pipeline, and is connected to the high-pressure hose 14 through the cleaning valve 11 and the pipeline. The feed valve 12 and the pipeline are connected to the feed pipe 105 at the top of the suction tank 1. Two high-pressure hoses 14 are provided. One end of the high-pressure hose 14 is connected to the feed valve 12, and the other end extends into the filter tank below the liquid surface for suctioning water-containing filter media. One end of the other high-pressure hose 14 is connected to the cleaning valve 11, and the other end extends into the filter tank for refilling water or cleaning the filter tank wall. The end of the high-pressure hose 14 connected to the cleaning valve 11 is connected to the jet gun 13 for jet cleaning of the inner wall of the filter tank.

[0024] like Figure 5 As shown, the water storage tank 5 holds clean water or chemicals and consists of a tank body 501, a water outlet pipe 502, a movable cover 503, and a stirrer 504. The water outlet pipe 502 is located on the lower side of the tank body 501 and is connected to the inlet of the sewage pump 4 through the water outlet valve 8 and a pipeline. The movable cover 503 is located on the upper part of the tank body 501 and is used to add clean water or chemicals. The stirrer 504 consists of a geared motor and a stirring paddle and is used to stir the chemicals evenly when they are added.

[0025] The mobile chassis 7 is used to carry the equipment and, through other traction vehicles, tow the suction device to different filter tank sites, thereby realizing the material removal operation of multiple sites.

[0026] like Figure 1 and Figure 2 As shown, the specific method of using the suction device is as follows: First, start the hydraulic station 6, and the lower opening of the storage tank 3 is closed and sealed; fill the water storage tank 5 with clean water; open the water outlet valve 8, the water inlet valve 9 and the liquid material valve 12, and close the drain valve 10 and the cleaning valve 11; start the sewage pump 4 to draw clean water from the water storage tank 5 and inject it into the suction tank 1, and then stop the sewage pump 4.

[0027] Then, close the outlet valve 8, the inlet valve 9, and the feed valve 12, and open the drain valve 10 and the cleaning valve 11; set up the jet gun 13 at the manhole of the filter tank, start the sewage pump 4, draw water from the suction tank 1, and inject water or jet flush into the filter tank, gradually forming a negative pressure in the suction tank 1; insert the end of the high-pressure hose 14 connected to the feed valve 12 into the filter media in the filter tank, open the feed valve 12, and use the negative pressure to draw the filter media with water into the suction tank 1; start the separator 2 to lift and transport the filter media falling into the bottom of the suction tank 1 to the storage tank 3; at the same time, the sediment in the suction tank 1 continues to be drawn by the sewage pump 4 and injected into the filter tank, forming a water circulation, and the suction tank 1 continues to maintain negative pressure and continue to draw water. Figure 1 As shown.

[0028] Finally, after the filter media in the filter tank has been completely drawn out, the sewage pump 4 is stopped, and the sealing cover 303 is opened by the hydraulic cylinder 304 of the storage tank 3 to discharge the filter media from the storage tank 3. Figure 2 As shown.

[0029] When the filter tank needs cleaning, cleaning agent can be added to the water storage tank 5, the sewage pump 4 can be started, and the jet gun 13 can be used to clean the inner wall of the filter tank.

Claims

1. A suction device for waste filter media in a wastewater filtration tank, characterized in that: It includes an interconnected suction tank (1), a separator (2), a storage tank (3), a sewage pump (4), and several valves and high-pressure hoses (14). The suction tank (1) is a vertically placed tank, consisting of a suction tank body (101), suction tank legs (102), a water inlet pipe (103), a drain pipe (104), a liquid feed pipe (105), and a liquid feed separator (106); wherein, the lower part of the suction tank body (101) is set in a conical shape to facilitate the discharge of filter material, and the lower opening is connected to the low-level feed inlet of the separator (2); the four suction tank legs (102) are supported on the lower part of the suction tank body (101). The feed pipe (105) is located at the upper part of the suction tank (101), and the water inlet pipe (103) and the drain pipe (104) are located on the side of the suction tank (101). The feed baffle (106) is vertically connected to the upper part of the inner wall of the suction tank (101), and the lower end of the feed baffle (106) is lower than the drain pipe (104) to prevent the feed from the feed pipe (105) from splashing directly into the drain pipe (104). The storage tank (3) is a vertical tank installed at an inclination of 20°~30°, and is composed of a storage tank body (301), storage tank legs (302), a sealing cover (303), and a sealing ring (304); wherein, the upper opening of the storage tank body (301) is connected to the high-level discharge port of the separator (2); when the four storage tank legs (302) are supported on the storage tank body (301), they leave the position of the sealing cover (303); the sealing cover (303) and the sealing ring (304) form the lower discharge sealing port of the storage tank (3); The separator (2) is a sealed cylindrical screw conveyor type, arranged at an inclination of 30°~45°. The upper feed port is connected to the suction tank (1), and the lower discharge port is connected to the storage tank (3). The separator (2), the suction tank (1), and the storage tank (3) are all set as a sealed structure that can withstand negative pressure. The sewage pump (4) uses water circulation to provide negative pressure to the suction tank (1) to achieve suction; the inlet of the sewage pump (4) is connected to the drain pipe (104) of the suction tank (1) through a drain valve (10) and a pipeline; the outlet of the sewage pump (4) is connected to the inlet pipe (103) of the suction tank (1) through a water inlet valve (9) and a pipeline, and is connected to the high pressure hose (14) through a cleaning valve (11) and a pipeline; The material inlet pipe (105) at the top of the suction tank (1) is connected to a material valve (12) and a pipeline; two high-pressure hoses (14) are provided, one end of the high-pressure hose (14) is connected to the material valve (12), and the other end extends into the filter tank below the liquid surface for suction of water-containing filter material; one end of the other high-pressure hose (14) is connected to the cleaning valve (11), and the other end extends into the filter tank for refilling water or cleaning the filter tank wall.

2. The waste filter media suction device for a wastewater filter tank according to claim 1, characterized in that: The suction device is equipped with a hydraulic station (6) to drive a hydraulic motor and a hydraulic cylinder (305); wherein, the hydraulic motor is installed on the shaft end of the separator (2) as a driving force to replace the geared motor, so as to avoid the separator (2) from getting stuck and causing the motor to burn out when it rotates; one end of the hydraulic cylinder (305) is connected to the storage tank body (301) of the storage tank (3), and the other end is connected to the sealing cover (303) to control the opening and closing of the sealing cover (303).

3. The waste filter media suction device for a wastewater filter tank according to claim 1, characterized in that: The suction device is equipped with a water storage tank (5) for holding clean water or medicine; the water storage tank (5) consists of a tank body (501), a water outlet pipe (502), a movable cover (503), and a stirrer (504); wherein, the water outlet pipe (502) is located on the lower side of the tank body (501) and is connected to the inlet of the sewage pump (4) through a water outlet valve (8) and a pipeline; the movable cover (503) is located on the upper part of the tank body (501) and is used to add clean water or medicine; the stirrer (504) consists of a geared motor and a stirring paddle and is used to stir the medicine evenly when it is added.

4. The waste filter media suction device for a wastewater filter tank according to claim 1, characterized in that: The suction device is equipped with a mobile chassis (7) that carries the equipment. The suction device can be towed to different filter tank stations by other traction vehicles to realize the transfer and material removal operations of multiple sites.

5. The waste filter media suction device for a wastewater filter tank according to claim 1, characterized in that: The cleaning valve (11) is connected to a high-pressure hose (14) which is connected to a jet gun (13) for jet cleaning of the inner wall of the filter tank.

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