A storage device for sludge treatment

Abstract

The utility model discloses a kind of storage devices for sludge treatment, belong to sludge treatment technical field, including storage tank, filter assembly is equipped in storage tank, filter assembly will the inside of storage tank be divided into first separating chamber, second separating chamber and water storage chamber, second separating chamber is used to store sludge;Filter assembly includes first filter screen, first filter screen is clamped in the bottom of second separating chamber, storage tank is also equipped with discharge assembly;Rotary plate is rotatably arranged below first filter screen, and drying assembly is arranged on rotary plate;When separating sludge and sewage, rotary plate rotates in the direction away from first filter screen, and sewage enters water storage chamber;When drying, rotary plate seals the bottom of second separating chamber, drying assembly sends hot air to second separating chamber, and dry residual sludge;The utility model utilizes rotary plate to reduce the diffusion range of hot air, and hot air is fully contacted with residual sludge and dried, so that the sludge in second separating chamber can be completely cleaned, and the space is released.

Description

Technical Field

[0001] This utility model relates to the field of sludge treatment technology, and specifically to a storage device for sludge treatment. Background Technology

[0002] An oilfield refers to a specific area where crude oil is produced, sometimes encompassing a collective term for oil-bearing layers accumulated underground in a particular region. During oilfield extraction, wastewater and sludge are generated. These wastewater and sludge contain toxic substances. To protect the environment from pollution, it is essential to strengthen controls on the standards and locations for the discharge of oilfield wastewater and sludge. Therefore, a mobile oilfield wastewater and sludge storage device is needed. Existing technology involves installing filter plates within the oilfield wastewater and sludge storage device to separate the wastewater and sludge generated in the oilfield, allowing for separate storage and transportation for combined treatment. Once transported to the treatment site, further separation is unnecessary, reducing treatment steps.

[0003] However, due to the stickiness of the sludge, it is impossible to completely empty the sludge when the storage tank is discharged, which can easily occupy the storage tank space and affect the next transfer and storage of sludge. In addition, during the storage process, the sludge makes the air inside the storage tank quite pungent, and directly opening the tank door to clean the storage tank can easily pose a danger to the operators. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model utilizes a drying component to effectively heat and dry the residual sludge, making it easier for it to detach from the storage tank; and utilizes an air purification component to purify the air inside the storage tank, avoiding any danger to operators.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a sludge treatment storage device, including a storage tank. Along the flow direction of the mixture, the storage tank is sequentially provided with a first separation chamber, a second separation chamber, and a water storage chamber. The first separation chamber and the second separation chamber are both located above the water storage chamber. The top of the first separation chamber is provided with a feed inlet, and the second separation chamber is used to store sludge. The storage tank is provided with a filter assembly, which includes a first filter screen that is snapped into the bottom of the second separation chamber. The storage tank is also provided with a discharge assembly. A rotating plate is provided below the first filter screen, one end of which is rotatably connected to the water storage chamber. The storage tank is provided with a drive assembly that drives the rotating plate to rotate, and a drying assembly is provided on the rotating plate. When separating sludge and sewage, the rotating plate rotates away from the first filter screen, and the sewage enters the water storage chamber. When drying, the rotating plate closes the bottom of the second separation chamber, and the drying assembly supplies hot air to the second separation chamber to dry the residual sludge.

[0006] As a preferred technical solution, the drive assembly includes a sealed box, an electric telescopic rod is provided inside the sealed box, and the piston rod of the electric telescopic rod extends out of the sealed box and is rotatably connected to a slider; The lower surface of the rotating plate is provided with a sliding rod, which is slidably connected to the slider.

[0007] As a preferred technical solution, the first separation chamber is provided with a tank door at the top, and the feed inlet is located on the tank door; And / or, the water storage chamber is provided with a drain outlet, the drain outlet is provided with a drain pipe, and the drain pipe is provided with a drain valve.

[0008] As a preferred technical solution, the first separation chamber and the second separation chamber are located at the same horizontal level; The filter assembly includes a second filter screen, which is snapped into the first separation chamber. The second filter screen is vertically arranged, and the pore size of the second filter screen is larger than that of the first filter screen.

[0009] As a preferred technical solution, the second filter screen is provided with a sealing plate on the side away from the second separation chamber, and the sealing plate is vertically and detachably installed in the first separation chamber.

[0010] As a preferred technical solution, the rotating plate is provided with a hollow structure, and the side of the rotating plate near the first filter screen is provided with a plurality of air vents communicating with the hollow structure, and the air vents are provided with air-permeable membranes. The drying assembly includes an air supply pipe and a delivery pipe. The air supply pipe is located inside the hollow structure and has several branch pipes. One end of each branch pipe extends into the air vent. One end of the delivery pipe is connected to the air supply pipe, and the other end of the delivery pipe extends out of the water storage chamber and is detachably connected to a heating box.

[0011] As a preferred technical solution, the top of the second separation chamber is provided with an air outlet, and an air extraction box is provided directly above the air outlet, with a fan installed inside the air extraction box; It also includes an air purification component, which includes an air purification duct. One end of the air purification duct extends into the air extraction box and is connected to the output end of the fan. The other end of the air purification duct is connected to a purification chamber, which is located above the storage tank.

[0012] As a preferred technical solution, the conveying pipe is a corrugated pipe; And / or, the storage tank is provided with an observation window.

[0013] As a preferred technical solution, the discharge assembly includes a pushing chamber located outside the second separation chamber. The pushing chamber is equipped with an electric push rod, the telescopic end of which extends into the second separation chamber and is fixedly connected to a mud discharge plate. The discharge assembly also includes two discharge gates, which are respectively hinged to the side walls of the first separation chamber and the second separation chamber, and the discharge gates and the push chamber are arranged opposite to each other.

[0014] As a preferred technical solution, a guide plate is provided below the discharge gate, and baffles extending upward are provided on both sides of the guide plate; And / or, the bottom surface of the first separation chamber gradually slopes downwards along the direction close to the discharge gate.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model utilizes a rotating plate to block the connection between the second separation chamber and the water storage chamber, allowing the drying component to deliver hot air into the second separation chamber, drying the residual sludge, reducing the sludge's stickiness, facilitating cleaning, and preventing sludge from remaining in the second separation chamber and affecting the storage space; the drying component is located on the rotating plate, delivering hot air from the bottom of the second separation chamber, which can fully contact the sludge.

[0016] 2. This utility model seals the second separation chamber by using a rotating plate and a sealing plate, which reduces the diffusion area of ​​hot air, accelerates the drying process of residual sludge in the second separation chamber, and shortens the cleaning time.

[0017] 3. This utility model is equipped with an air purification component on the storage tank to replace and purify the air in the storage tank, especially in the second separation chamber, so as to avoid adverse effects on the operators when the tank door or discharge door is opened. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of a sludge treatment storage device according to the present invention; Figure 2 This is a side view of a sludge treatment storage device according to the present invention; Figure 3 This is a schematic diagram of the rotating plate structure of a sludge treatment storage device according to the present invention; Figure 4 This is a schematic diagram of the drying component of a storage device for sludge treatment according to the present invention.

[0019] In the diagram: 1-Storage tank, 2-First filter screen, 3-Second filter screen, 4-First separation chamber, 5-Second separation chamber, 6-Water storage chamber, 7-Limiting plate, 8-Push chamber, 9-Electric push rod, 10-Sludge discharge plate, 11-Discharge gate, 12-Guide plate, 13-Baffle, 14-Rotating plate, 15-Sealed box, 16-Electric telescopic rod, 17-Breathable membrane, 18-Air supply pipe, 19-Branch pipe, 20-Conveying pipe, 21-Heating box, 22-Sealing plate, 23-Inlet, 24-Tank door, 25-Drain pipe, 26-Fan, 27-Air purification pipe, 28-Purification chamber, 29-Air inlet cover, 30-Extraction box, 31-Wheel caster, 32-Slider, 33-Slide rod. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] Please refer to Figures 1-4 This utility model provides a sludge treatment storage device, including a storage tank 1. The storage tank 1 contains a filter assembly, which includes a first filter screen 2 and a second filter screen 3. Along the flow direction of the mixture, the storage tank 1 sequentially contains a first separation chamber 4, a second separation chamber 5, and a water storage chamber 6. The first separation chamber 4 and the second separation chamber 5 are at the same height, and the water storage chamber 6 is located below them. The top of the first separation chamber 4 has an inlet 23 for conveying a mixture of sludge and wastewater from the oilfield into the first separation chamber 4. The second separation chamber 5 is used to store sludge, and the water storage chamber 6 is used to store wastewater. The first filter screen 2 is snapped into the bottom of the second separation chamber 5 and placed horizontally, while the second filter screen 3 is snapped into the first separation chamber 4 and placed vertically. The pore size of the second filter screen 3 is larger than that of the first filter screen 2. The second filter screen 3 initially filters large particles in the mixture, while the first filter screen 2 filters fine sludge.

[0022] It should be noted that the side wall of the second separation chamber 5 is provided with an insertion port. The first filter screen 2 is inserted into the second separation chamber 5 through the insertion port. A limiting plate 7 is provided on one side of the first filter screen 2. The limiting plate 7 is located on the outside and abuts against the outer surface of the second separation chamber 5. The limiting plate 7 is provided with a handle for easy replacement of the first filter screen 2. The top of the first separation chamber 4 is provided with a tank door 24. The feed inlet 23 is located on the tank door 24. The second filter screen 3 can be replaced by opening the tank door 24.

[0023] In this embodiment, please refer to Figure 2The storage tank 1 is also equipped with a discharge assembly, which includes a push chamber 8 located outside the second separation chamber 5. An electric push rod 9 is installed inside the push chamber 8, with its telescopic end extending into the second separation chamber 5 and fixedly connected to a sludge discharge plate 10. The discharge assembly also includes two discharge gates 11, which are respectively hinged to the side walls of the first separation chamber 4 and the second separation chamber 5, and are positioned opposite to the push chamber 8. The sludge discharge plate 10 is moved by the electric push rod 9 to discharge the sludge. A guide plate 12 is located below the discharge gates 11, and upward-extending baffles 13 are located on both sides of the guide plate 12. The guide plate 12 and the baffles 13 form a U-shaped conveying channel to prevent sludge from flowing onto the ground and causing pollution.

[0024] In this embodiment, please refer to Figure 1 A rotating plate 14 is located below the first filter screen 2. One end of the rotating plate 14 is rotatably connected to the water storage chamber 6. The storage tank 1 is equipped with a drive assembly that drives the rotating plate 14 to rotate. When separating sludge and sewage, the rotating plate 14 rotates away from the first filter screen 2, and the second separation chamber 5 and the water storage chamber 6 are connected. Sludge enters the water storage chamber 6, while sludge remains in the second separation chamber 5. A drying assembly is provided on the rotating plate 14. After the sludge discharge assembly discharges the sludge from the second separation chamber 5, the rotating plate 14 seals the bottom of the second separation chamber 5. While blocking the connection between the second separation chamber 5 and the water storage chamber 6, the drying assembly on it can supply hot air to the second separation chamber 5 to dry the residual sludge.

[0025] In this embodiment, please refer to Figure 1 The drive assembly includes a sealed box 15, inside which is provided an electric telescopic rod 16. The piston rod of the electric telescopic rod 16 extends out of the sealed box 15 and is rotatably connected to a slider 32. A sliding rod 33 is provided on the lower surface of the rotating plate 14, and the sliding rod 33 is slidably connected to the slider 32.

[0026] For details, please refer to Figure 3 and Figure 4The rotating plate 14 has a hollow structure. On the side of the rotating plate 14 near the first filter screen 2, there are several air vents communicating with the hollow structure. Each air vent has a breathable membrane 17. The hot air released from the breathable membrane 17 diffuses upwards, fully contacting the sludge on the first filter screen 2 and the inner wall of the second separation chamber 5, drying the sludge, reducing its stickiness, facilitating the discharge of residual sludge, and preventing sludge accumulation from affecting the usable space. The drying assembly includes an air supply pipe 18 and a conveying pipe 20. The air supply pipe 18 is located inside the hollow structure and has several branch pipes 19. One end of each branch pipe 19 extends into an air vent, supplying hot air to the breathable membrane 17. One end of the conveying pipe 20 is connected to the air supply pipe 18, and the other end extends out of the water storage chamber 6 and is detachably connected to a heating box 21. The heating box 21 is installed when sludge drying is required and can be removed when not needed, reducing the load on the storage tank 1. In this invention, the heating box 21 is a device that can provide hot air, which is a common instrument in the field and will not be described in detail here.

[0027] It should be noted that the conveying pipe 20 is preferably a corrugated pipe to accommodate the rotation of the rotating plate 14. The water storage chamber 6 is equipped with a drain outlet, a drain pipe 25, and a drain valve to discharge wastewater. The storage tank 1 is equipped with an observation window (not shown in the figure) to allow for constant monitoring of the internal condition of the storage tank 1.

[0028] Further preferred options, refer to Figure 1 A sealing plate 22 is provided on the side of the second filter screen 3 away from the second separation chamber 5. The sealing plate 22 is vertically and detachably installed in the first separation chamber 4. During sludge drying, the sealing plate 22 is installed in the first separation chamber 4. The sealing plate 22 and the rotating plate 14 enclose the second separation chamber 5 into a closed space, reducing the diffusion of hot air and improving drying efficiency. In a preferred embodiment, the bottom surface of the first separation chamber 4 gradually slopes downwards along the direction close to the discharge gate 11. Large particles of impurities accumulate at the lowest end of the first separation chamber 4, i.e., the side close to the discharge gate 11, after entering the first separation chamber 4, facilitating discharge under gravity. The lower end surfaces of the second filter screen 3 and the sealing plate 22 have the same inclination angle as the bottom surface of the first separation chamber 4.

[0029] In this embodiment, please refer to Figure 1 The bottom of storage tank 1 is equipped with casters 31 to facilitate the movement of storage tank 1.

[0030] In this embodiment, please refer to Figure 1The second separation chamber 5 has an air outlet at its top, and an extraction box 30 is located directly above the air outlet. A fan 26 is installed inside the extraction box 30, which draws air from the second separation chamber 5 into an air purification assembly for purification. The assembly includes an air purification pipe 27, one end of which extends into the extraction box 30 and connects to the output of the fan 26. The other end of the pipe 27 connects to a purification chamber 28, located above the storage tank 1. An air inlet is located on the upper part of the side wall of the second separation chamber 5 to balance the internal and external air pressure. A third filter is installed on the air inlet to filter external air, and an air inlet cover 29 matching the air inlet is installed on the second separation chamber 5. The purification chamber 28 is a common gas processing device in the art. Along the gas flow direction, a filter plate and an activated carbon adsorption plate can be sequentially installed inside the purification chamber 28 for the purpose of purifying the air in the storage tank 1; details will not be elaborated here.

[0031] Detailed operation process: First, the sludge and wastewater mixture is added to the first separation chamber 4 through the feed inlet 23. Large particles are blocked by the second filter screen 3. The sludge and wastewater then enter the second separation chamber 5, where the sludge is blocked by the first filter screen 2, and the wastewater enters the storage chamber 6. The air inlet cover 29 is opened, and the blower 26 is started. The blower 26 draws the pungent gas from the storage tank 1 into the purification chamber 28 for purification. After the air in the storage tank 1 is replaced, the discharge door 11 corresponding to the first separation chamber 4 is opened, and large particles are discharged under gravity. The discharge door 11 corresponding to the second separation chamber 5 is opened, and the electric push rod 9 is activated. The electric push rod 9 moves the sludge discharge plate 10, discharging the sludge, and then the sludge discharge plate 10 returns to its original position.

[0032] Close the discharge gate 11, open the tank door 24, and insert the sealing plate 22 into the first separation chamber 4 to block the connection between the first separation chamber 4 and the second separation chamber 5. Start the electric telescopic rod 16, which drives the rotating plate 14 to rotate until the rotating plate 14 blocks the connection between the second separation chamber 5 and the water storage chamber 6. Connect the conveying pipe 20 to the heating box 21, which supplies hot air to the air supply pipe 18. The hot air escapes from the permeable membrane 17, drying the residual sludge in the second separation chamber 5. After drying, close the heating box 21, open the discharge gate 11 corresponding to the second separation chamber 5, and start the electric push rod 9. The electric push rod 9 drives the sludge discharge plate 10 to move, discharging the dried sludge.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A storage device for sludge treatment, characterized in that, The system includes a storage tank (1). Along the flow direction of the mixture, the storage tank (1) is provided with a first separation chamber (4), a second separation chamber (5), and a water storage chamber (6) in sequence. The first separation chamber (4) and the second separation chamber (5) are both located above the water storage chamber (6). The top of the first separation chamber (4) is provided with a feed inlet (23), and the second separation chamber (5) is used to store sludge. The storage tank (1) is provided with a filter assembly, which includes a first filter screen (2). The first filter screen (2) is snapped into the bottom of the second separation chamber (5). The storage tank (1) is also provided with a discharge assembly. A rotating plate (14) is provided below the first filter screen (2). One end of the rotating plate (14) is rotatably connected to the water storage chamber (6). The storage tank (1) is provided with a driving component that drives the rotating plate (14) to rotate. The rotating plate (14) is provided with a drying component. When separating sludge and sewage, the rotating plate (14) rotates away from the first filter screen (2), and the sewage enters the water storage chamber (6). When drying, the rotating plate (14) seals the bottom of the second separation chamber (5), and the drying component delivers hot air to the second separation chamber (5) to dry the residual sludge.

2. The sludge treatment storage device according to claim 1, characterized in that, The drive assembly includes a sealed box (15), and an electric telescopic rod (16) is provided inside the sealed box (15). The piston rod of the electric telescopic rod (16) extends out of the sealed box (15) and is rotatably connected to a slider (32). The lower surface of the rotating plate (14) is provided with a slide rod (33), which is slidably connected to the slider (32).

3. The sludge treatment storage device according to claim 1, characterized in that, The first separation chamber (4) is provided with a tank door (24) at the top, and the feed inlet (23) is located on the tank door (24); And / or, the water storage chamber (6) is provided with a drain outlet, the drain outlet is provided with a drain pipe (25), and the drain pipe (25) is provided with a drain valve.

4. The sludge treatment storage device according to claim 1, characterized in that, The first separation chamber (4) and the second separation chamber (5) are located at the same horizontal level; The filter assembly includes a second filter screen (3), which is snapped into the first separation chamber (4). The second filter screen (3) is vertically arranged, and the aperture of the second filter screen (3) is larger than that of the first filter screen (2).

5. A sludge treatment storage device according to claim 4, characterized in that, The second filter screen (3) is provided with a sealing plate (22) on the side away from the second separation chamber (5), and the sealing plate (22) is vertically and detachably installed in the first separation chamber (4).

6. A sludge treatment storage device according to claim 1, characterized in that, The rotating plate (14) is provided with a hollow structure. The side of the rotating plate (14) near the first filter screen (2) is provided with a plurality of air vents communicating with the hollow structure. The air vents are provided with air vent membranes (17). The drying assembly includes an air supply pipe (18) and a delivery pipe (20). The air supply pipe (18) is located inside the hollow structure. Several branch pipes (19) are provided on the air supply pipe (18). One end of the branch pipe (19) extends into the air vent. One end of the delivery pipe (20) is connected to the air supply pipe (18). The other end of the delivery pipe (20) extends out of the water storage chamber (6) and is detachably connected to a heating box (21).

7. A sludge treatment storage device according to claim 1, characterized in that, The second separation chamber (5) is provided with an air outlet at the top, and an air extraction box (30) is provided directly above the air outlet. A fan (26) is provided inside the air extraction box (30). It also includes an air purification component, which includes an air purification duct (27), one end of which extends into the air extraction box (30) and is connected to the output end of the fan (26), and the other end of which is connected to a purification chamber (28), which is located above the storage tank (1).

8. A sludge treatment storage device according to claim 6, characterized in that, The conveying pipe (20) is a corrugated pipe; And / or, the storage tank (1) is provided with an observation window.

9. A sludge treatment storage device according to claim 1, characterized in that, The discharge assembly includes a push chamber (8), which is located outside the second separation chamber (5). An electric push rod (9) is provided inside the push chamber (8). The telescopic end of the electric push rod (9) extends into the second separation chamber (5) and is fixedly connected to a mud discharge plate (10). The discharge assembly also includes two discharge gates (11), which are hinged to the side walls of the first separation chamber (4) and the second separation chamber (5), respectively. The discharge gates (11) and the push chamber (8) are arranged opposite to each other.

10. A sludge treatment storage device according to claim 9, characterized in that, The discharge gate (11) is provided with a guide plate (12) below it, and the guide plate (12) is provided with baffles (13) extending upward on both sides. And / or, the bottom surface of the first separation chamber (4) gradually slopes downward along the direction close to the discharge gate (11).

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