Wastewater pool sludge cleaning device

Abstract

The utility model discloses a waste water pool sludge cleaning device which comprises a sludge bucket arranged at the bottom of a waste water pool, the inner wall of the top of the sludge bucket is fixedly connected with a water conveying pipe and a gas conveying pipe, the water conveying pipe and the gas conveying pipe are both annular, and a plurality of jet nozzles are arranged on the outer wall of the bottom of the water conveying pipe. A plurality of nozzles are arranged on the outer wall of the bottom of the gas conveying pipe, an air compressor and a water pump are installed on the outer side of the wastewater pool, the output end of the air compressor communicates with the gas conveying pipe through a communicating pipe, and the output end of the water pump communicates with the water conveying pipe through another communicating pipe; high-speed electromagnetic valves are mounted at the ends, close to the water conveying pipe and the air conveying pipe, of the two communicating pipes; by arranging the water conveying pipe, the air conveying pipe, the air compressor, the water pump and the communicating pipe, the adhesive force of sludge can be impacted and destroyed through pulse high-pressure airflow, so that the sludge adhered to the inner wall of the sludge bucket falls down, and the inner wall of the sludge bucket and residual sludge on the inner wall of the sludge bucket are flushed through high-pressure water flow.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge cleaning devices, and in particular to a wastewater pool sludge cleaning device. Background Technology

[0002] During wastewater treatment, the addition of flocculants to the wastewater pond causes impurities in the industrial wastewater to accumulate on the bottom of the pond and form sludge. As the volume of the sludge increases, the amount of wastewater stored in the pond decreases, thereby reducing the efficiency of wastewater treatment. Therefore, the sludge in the wastewater pond needs to be treated.

[0003] A search revealed a Chinese patent publication number CN220467603U, which discloses a wastewater tank with sludge removal and scraping functions. The tank includes a first wastewater treatment tank and a second wastewater treatment tank. A sludge hopper is provided on one side of the bottom of the second wastewater treatment tank. A chain-type sludge scraper is installed inside the second wastewater treatment tank. This patent uses a chemical mixing tank to facilitate the stirring and dilution of water and chemicals, ensuring that the chemicals are completely dissolved in the water. The stirring mechanism is controlled by a PLC, which allows for the calculation of the time required for stirring to decompose based on the water volume, thereby improving treatment efficiency.

[0004] However, after the sludge enters the sludge hopper, when the sludge becomes highly viscous after being stored for a long time, it is easy to form a sludge cake on the inner wall of the sludge hopper, making it difficult to discharge the sludge. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wastewater pond sludge cleaning device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wastewater tank sludge cleaning device includes a sludge hopper disposed at the bottom of the wastewater tank. A water supply pipe and an air supply pipe are fixedly connected to the inner wall of the top of the sludge hopper. Both the water supply pipe and the air supply pipe are annular and parallel. Multiple jet nozzles are disposed on the outer wall of the bottom of the water supply pipe, and multiple nozzles are disposed on the outer wall of the bottom of the air supply pipe. Both jet nozzles and nozzles are obliquely arranged at 45 degrees. An air compressor and a water pump are installed on the outside of the wastewater tank. The output end of the air compressor is connected to the air supply pipe through a connecting pipe, and the output end of the water pump is connected to the water supply pipe through another connecting pipe. The input end of the water pump is connected to an external water source. High-speed solenoid valves are installed at the ends of the two connecting pipes near the water supply pipe and the air supply pipe.

[0008] As a further improvement of this utility model: the bottom end of the mud hopper is connected to a conveying pipe, and one end of the conveying pipe is connected to a mud discharge pipe.

[0009] As a further embodiment of this utility model: a spiral conveying rod is rotatably connected to the inner wall of the conveying pipe, a motor for driving the conveying pipe to rotate is installed at one end of the conveying pipe, and a turbidity meter is installed on the side wall of one end of the conveying pipe.

[0010] As a further improvement of this utility model: a reflux assembly is installed on the side wall of the sludge discharge pipe, and the reflux assembly is located above the side of the wastewater pool.

[0011] As a further embodiment of this utility model: the reflux assembly includes a sleeve and a reflux pipe, the sleeve is fixedly connected to the outside of the sludge discharge pipe, and the reflux pipe is fixedly connected to the side wall of the sleeve.

[0012] As a further improvement of this utility model: the other end of the return pipe is located above the wastewater pool, and the side wall of the sludge discharge pipe is provided with multiple openings for communicating with the sleeve.

[0013] As a further improvement of this utility model: the sleeve sidewall is provided with multiple slots, and a filter plate is slidably fitted on the inner wall of the slot, with the filter plate located on one side of the opening.

[0014] Compared with the prior art, the present invention provides a wastewater pond sludge cleaning device, which has the following beneficial effects:

[0015] This utility model, by being equipped with a water supply pipe, an air supply pipe, an air compressor, a water pump, and a connecting pipe, can generate impact through pulsed high-pressure airflow to break the adhesion of sludge, causing the sludge adhering to the inner wall of the sludge hopper to fall off, and then wash the inner wall of the sludge hopper with high-pressure water flow to remove residual sludge.

[0016] By installing a turbidity meter to detect the concentration of sludge transported in the delivery pipe, the automatic switching between airflow and water jet is achieved.

[0017] By incorporating a reflux assembly, water can be separated from the sludge, allowing the separated water to flow back into the wastewater pond.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0021] Figure 3 This is a partial structural diagram of the present invention.

[0022] Figure 4 This is a side view of the present invention.

[0023] Figure 5 This is a schematic diagram of the recirculation assembly of this utility model.

[0024] In the diagram: 1. Wastewater tank; 2. Sludge hopper; 3. Sludge discharge pipe; 4. Conveying pipe; 5. Screw conveyor; 6. Motor; 7. Water supply pipe; 8. Air supply pipe; 9. Air compressor; 10. Water pump; 11. Connecting pipe; 12. High-speed solenoid valve; 13. Turbidity meter; 14. Reflux assembly; 15. Sleeve; 16. Reflux pipe; 17. Slot; 18. Filter plate. Detailed Implementation

[0025] 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.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Example 1:

[0028] A wastewater pond sludge cleaning device, such as Figures 1 to 4 As shown, the system includes a sludge hopper 2 located at the bottom of a wastewater tank 1. A water supply pipe 7 and an air supply pipe 8 are fixedly connected to the inner wall of the top of the sludge hopper 2. Both the water supply pipe 7 and the air supply pipe 8 are annular and parallel to each other. Multiple jet nozzles are provided on the outer wall of the bottom of the water supply pipe 7, and multiple nozzles are provided on the outer wall of the bottom of the air supply pipe 8. Both the jet nozzles and nozzles are angled at 45 degrees. An air compressor 9 and a water pump 10 are installed on the outside of the wastewater tank 1. The output end of the air compressor 9 is connected to the air supply pipe 8 through a connecting pipe 11, and the output end of the water pump 10 is connected to the water supply pipe 7 through another connecting pipe 11. The input end of the water pump 10 is connected to an external water source. High-speed solenoid valves 12 are installed on the ends of the two connecting pipes 11 near the water supply pipe 7 and the air supply pipe 8.

[0029] The bottom end of the mud hopper 2 is connected to a conveying pipe 4, one end of the conveying pipe 4 is connected to a mud discharge pipe 3, a spiral conveying rod 5 is rotatably connected to the inner wall of the conveying pipe 4, a motor 6 that drives the conveying pipe 4 to rotate is installed at one end of the conveying pipe 4, and a turbidity meter 13 is installed on the side wall of one end of the conveying pipe 4.

[0030] The sludge settles into the sludge hopper 2 and is collected. The motor 6 drives the screw conveyor 5 to rotate, conveying the sludge outward along the conveying pipe 4 and the sludge discharge pipe 3. The air compressor 9 starts and delivers high-pressure airflow to the air supply pipe 8 through the connecting pipe 11. The high-speed solenoid valve 12 opens and closes every 0.5-2 seconds, pulse-spraying the sludge onto the inner wall of the sludge hopper 2 through the nozzle, forming a shock wave. The impact breaks the adhesion of the sludge, allowing the high-viscosity sludge to be continuously discharged. The turbidity meter 13 detects the sludge concentration flowing through the conveying pipe 4. When the sludge concentration in the conveying pipe 4 is less than 30%, the air compressor 9 shuts down. The water pump 10 pressurizes the external water source and delivers it to the water supply pipe 7 through the connecting pipe 11. The connecting pipe 11 opens and closes every 1-3 seconds, spraying water into the sludge hopper 2 through the water supply pipe 7 and the jet nozzle, washing away the residual sludge on the inner wall of the sludge hopper 2.

[0031] By providing a water supply pipe 7, an air supply pipe 8, an air compressor 9, a water pump 10, and a connecting pipe 11, the sludge can be broken by the impact generated by the pulsed high-pressure airflow, causing the sludge adhering to the inner wall of the sludge hopper 2 to fall off. The sludge is then washed away by the high-pressure water flow to remove any remaining sludge from the inner wall of the sludge hopper 2.

[0032] By installing a turbidity meter 13 to detect the concentration of sludge transported in the delivery pipe 4, the automatic switching between airflow and water jet is achieved.

[0033] Example 2:

[0034] A wastewater pond sludge cleaning device, this embodiment is based on embodiment 1, with the following improvements, such as... Figure 1 , Figure 5 As shown, a return assembly 14 is installed on the side wall of the sludge discharge pipe 3. The return assembly 14 is located above the side of the wastewater tank 1. The return assembly 14 includes a sleeve 15 and a return pipe 16. The sleeve 15 is fixedly connected to the outside of the sludge discharge pipe 3, and the return pipe 16 is fixedly connected to the side wall of the sleeve 15. The other end of the return pipe 16 is located above the wastewater tank 1. The side wall of the sludge discharge pipe 3 is provided with multiple openings for communicating with the sleeve 15. The side wall of the sleeve 15 is provided with multiple slots 17. A filter plate 18 is slidably fitted on the inner wall of the slot 17. The filter plate 18 is located on one side of the opening.

[0035] When the sludge flowing along the sludge discharge pipe 3 passes through the return assembly 14, the water in the sludge seeps from the filter plate 18 into the sleeve 15, and then flows back into the wastewater tank 1 through the return pipe 16. The filter plate 18 can be pulled out from the slot 17 for maintenance.

[0036] By providing a return flow component 14, water in the sludge can be separated and the separated water can be returned to the wastewater pool 1.

[0037] Working principle: Sludge settles into sludge hopper 2 and collects. Motor 6 drives screw conveyor 5 to rotate, conveying the sludge outward along conveying pipe 4 and sludge discharge pipe 3. Air compressor 9 starts and delivers high-pressure airflow to air supply pipe 8 through connecting pipe 11. High-speed solenoid valve 12 opens and closes every 0.5-2 seconds, pulse-jetting the inner wall of sludge hopper 2 through nozzles to form shock waves. The impact breaks the adhesion of the sludge, allowing high-viscosity sludge to be continuously discharged. Turbidity meter 13 detects the sludge concentration flowing through conveying pipe 4. When the sludge concentration in conveying pipe 4 is less than 30%, air compressor 9 shuts down. Water pump 10 pressurizes external water and delivers it to water supply pipe 7 through connecting pipe 11. Connecting pipe 11 opens and closes every 1-3 seconds, spraying water into sludge hopper 2 through water supply pipe 7 and jet nozzles to wash away the residual sludge on the inner wall of sludge hopper 2. Sludge flowing along sludge discharge pipe 3 passes through return assembly 14. Moisture in the sludge seeps from the filter plate 18 into the sleeve 15 and then flows back into the wastewater pool 1 through the return pipe 16. The filter plate 18 can be pulled out from the slot 17 for maintenance.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for cleaning sludge from a wastewater tank, comprising a hopper (2) arranged at the bottom of the wastewater tank (1), characterized in that, The top inner wall of the mud hopper (2) is fixedly connected to a water supply pipe (7) and an air supply pipe (8). The bottom outer wall of the water supply pipe (7) is provided with multiple jet nozzles, and the bottom outer wall of the air supply pipe (8) is provided with multiple nozzles. An air compressor (9) and a water pump (10) are installed on the outside of the wastewater pool (1). The output end of the air compressor (9) is connected to the air supply pipe (8) through a connecting pipe (11), and the output end of the water pump (10) is connected to the water supply pipe (7) through another connecting pipe (11). The input end of the water pump (10) is connected to an external water source.

2. A device for cleaning a waste lagoon of sludge as defined in claim 1, wherein, Both the water pipe (7) and the gas pipe (8) are ring-shaped, and the water pipe (7) and the gas pipe (8) are parallel.

3. A device for cleaning a waste lagoon according to claim 1 or 2, wherein, The jet nozzle and the spray head are both set at a 45-degree angle, and high-speed solenoid valves (12) are installed at the ends of the two connecting pipes (11) near the water pipe (7) and the air pipe (8).

4. A device for cleaning a waste lagoon according to claim 1, wherein, The bottom end of the mud hopper (2) is connected to a conveying pipe (4), and one end of the conveying pipe (4) is connected to a mud discharge pipe (3).

5. A device for cleaning a waste lagoon of sludge as defined in claim 4, wherein, The inner wall of the conveying pipe (4) is rotatably connected to a spiral conveying rod (5), a motor (6) for driving the conveying pipe (4) to rotate is installed at one end of the conveying pipe (4), and a turbidimeter (13) is installed on the side wall of one end of the conveying pipe (4).

6. A device for cleaning a waste lagoon according to claim 4 or 5, wherein, The sludge discharge pipe (3) is equipped with a return flow assembly (14) on its side wall, and the return flow assembly (14) is located above the side of the wastewater tank (1).

7. A device for cleaning a waste lagoon of sludge as defined in claim 6, wherein, The reflux assembly (14) includes a sleeve (15) and a reflux pipe (16). The sleeve (15) is fixedly connected to the outside of the sludge discharge pipe (3), and the reflux pipe (16) is fixedly connected to the side wall of the sleeve (15).

8. A device for cleaning a waste lagoon of sludge according to claim 7, wherein, The other end of the return pipe (16) is located above the wastewater pool (1), and the side wall of the sludge discharge pipe (3) is provided with multiple openings for communicating with the sleeve (15).

9. A device for cleaning a waste lagoon of sludge as defined in claim 8, wherein, The sleeve (15) has multiple slots (17) on its side wall, and a filter plate (18) is slidably fitted on the inner wall of the slot (17), with the filter plate (18) located on the opening side.

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