Integrated vortex micro-sand purification device based on pneumatic regulation and enhanced sand discharge

Abstract

The utility model discloses an integrated vortex microsand purification device based on pneumatic regulation and control reinforced sand discharge, including integrated vortex microsand purification mechanism, pneumatic conveying sand discharge system and intelligent electric control system. Integrated vortex microsand purification mechanism forms the cyclone through tangent water inlet, and realizes sand water separation with centrifugal force and gravity, and pneumatic conveying sand discharge system includes gas conveying device, sand discharge pipeline, pneumatic pulse device and a plurality of branch pipes, and through the auxiliary tangent gas conveying of the purification device water inlet strengthens centrifugal force, and pneumatic disturbance prevents sand particle from cementing, and realizes automatic sand discharge with the principle of air stripping, and intelligent electric control system integrates photovoltaic equipment, material level meter and liquid level meter, and according to the detection data automatic regulation and control pneumatic conveying and sand discharge process, ensure efficient sand removal and energy -conserving operation. The device solves the problems of traditional cyclone sand remover in low water volume, centrifugal force deficiency, sand particle cementing and sand discharge period depending on artificial determination, and has the advantages of self -adaptation adjustment, anti -cementing, automatic sand discharge etc.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand discharge. Background Technology

[0002] After initial rainwater washes over the surface, it carries a large amount of mud, sand, organic matter and pollutants (such as SS concentrations of 400 to 1,410 mg / L). Its sand content is high and the particle size distribution is wide (median diameter of about 100 to 200 μm). Direct discharge will cause water bodies to silt up, block pipe networks and aggravate the pollution of receiving water bodies.

[0003] Hydrocyclone sand separators, due to their compact structure, high-efficiency centrifugal separation (tangential water inlet generates a rotating flow field), and the absence of chemical reagents, have become the core equipment for the pretreatment of initial rainwater discharge outlets, aiming to remove particles >0.2mm at a rate >80%. The technical principle is that the inlet water flows tangentially into the equipment, and sand particles are thrown against the wall and settle under centrifugal force, while clean water is discharged from the overflow outlet. The sand and gravel deposited in the sand hopper are periodically suctioned out using a vacuum truck or a submersible pump.

[0004] The following problems often occur during the actual operation of this equipment: (1) The initial rainfall volume and water quality fluctuate greatly. When the inflow volume is too small, the flow rate slows down, resulting in insufficient centrifugal force, which cannot carry out effective solid-liquid separation. The sand and gravel removal effect is greatly reduced, and the equipment lacks an adaptive adjustment mechanism. (2) Due to the compaction of sand particles at the bottom of the sand hopper, it is difficult to discharge sand; (3) The amount of sand stored in the sand hopper is not monitored by instruments, so it is impossible to determine the sand discharge cycle and time. It relies too much on manual settings and cannot respond to sudden changes in mud and sand load, resulting in overflow or ineffective sand discharge.

[0005] To address this problem, the present invention proposes an integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal, thereby solving the above-mentioned issues. Utility Model Content

[0006] The purpose of this invention is to provide an integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal, comprising an integrated vortex micro-sand purification mechanism, a pneumatic conveying sand removal system, and an intelligent electrical control system. The integrated vortex micro-sand purification mechanism includes a device tank, an inlet pipe, an outlet pipe, a central column, a guide cylinder, a conical disc, a sand settling disc, a sand removal hole, and a sand storage hopper. The inlet pipe is tangentially connected to the outer wall of the device tank to ensure that the inlet water enters the guide cylinder tangentially and forms a vortex. The lower inner wall of the device tank is fixedly connected to the upper part of the sand settling disc. A sand storage hopper is provided at the bottom of the device tank. A guide cylinder is fixedly installed inside the device tank. The outlet pipe is connected to the guide cylinder at a vertical angle and extends to the outside of the device tank. A central column is fixedly installed inside the guide cylinder. A conical disc is provided at the bottom of the central column. A sand removal hole is opened at the center of the top of the device tank. The pneumatic conveying and sand removal system includes an air conveying device, a sand removal pipeline, a pneumatic pulse device, an air conveying pipeline, an air flushing branch pipe, an air lift branch pipe, a backwash branch pipe, a tangential air conveying branch pipe, a sand removal valve, and a solenoid valve. The sand removal pipeline is fixedly installed at the center of the device tank. A sand suction horn is provided at the bottom of the sand removal pipeline, located in the lower part of the sand storage hopper. The outlet of the sand removal pipeline is connected to the sand removal hole at the top of the device tank, and a sand removal valve is provided in an easily accessible position. An air conveying pipeline is provided at the air outlet of the air conveying device. The air conveying pipeline branches into four branch pipes: an air flushing branch pipe, an air lift branch pipe, a backwash branch pipe, and a tangential air conveying branch pipe. Each branch pipe is equipped with a solenoid valve to control whether each branch pipe is activated. The pneumatic pulse device is fixedly installed at the bottom of the sand storage hopper, and the end of the backwash branch pipe is fixedly connected to the pneumatic pulse device for supplying air to the pneumatic pulse device.

[0008] Preferably, the center elevation of the inlet pipe is lower than the center elevation of the outlet pipe.

[0009] Preferably, the top of the device tank is also provided with inspection holes, and the number of inspection holes is at least two.

[0010] Preferably, the pneumatic pulse device is in the form of a ring pipe, the diameter of which corresponds to the inner diameter of the sand storage hopper, and multiple pulse air outlets arranged in a ring array are provided on the inner side of the ring pipe in the horizontal direction, with the number of pulse air outlets being ≥4.

[0011] Preferably, the end of the air-flushing branch pipe is connected to the top of the sand discharge pipe.

[0012] Preferably, the end of the airlift branch pipe is connected to the lower part of the sand discharge pipe and extends into it, bending upwards.

[0013] Preferably, the end of the tangential gas supply branch pipe is located at the water outlet of the water inlet pipe, and the outlet of the tangential gas supply branch pipe is in the same direction as the water inlet.

[0014] Preferably, the intelligent electrical control system includes an electrical control cabinet, a photovoltaic device, a level gauge, and a liquid level gauge. The electrical control cabinet is electrically connected to the photovoltaic device, the level gauge, the liquid level gauge, and the solenoid valve. The photovoltaic device includes a battery capable of storing electrical energy and a photovoltaic panel for absorbing solar energy. The level gauge is fixedly installed at the bottom of the sand storage hopper to detect the height of the mud and sand, and the liquid level gauge is fixedly installed inside the guide tube to detect the liquid level.

[0015] Preferably, the gas delivery device can be a Roots blower, a vortex blower, a rotary blower, or an air pump.

[0016] Preferably, the solenoid valve can be an electric valve or a pneumatic valve.

[0017] Beneficial effects This utility model provides an integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal, which has the following beneficial effects: 1. This integrated vortex micro-sand purification device based on pneumatic regulation and enhanced sand removal, by setting up an integrated vortex micro-sand purification mechanism and a pneumatic conveying sand removal system, when the incoming water volume is too small and the flow rate slows down, resulting in insufficient centrifugal force, by opening the solenoid valve and air conveying device corresponding to the tangential air conveying branch pipe, a large amount of air is output along the tangential air conveying branch pipe. The gas input tangentially drives the water flow to accelerate and rotate to maintain a strong centrifugal force, which can effectively separate solid and liquid and ensure the sand removal effect.

[0018] 2. This integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand discharge, by setting up a pneumatic conveying sand discharge system, and by opening the solenoid valve and air supply device corresponding to the backwash branch pipe, the gas is pulsedly discharged by the pneumatic pulse device, which can periodically supply gas to the sand storage hopper, thereby disturbing the sand stored at the bottom, preventing caking, facilitating sand discharge, and not affecting the internal vortex flow state.

[0019] 3. This integrated vortex micro-sand purification device based on pneumatic regulation and enhanced sand discharge utilizes an intelligent electronic control system. After the equipment has been running, a certain amount of mud and sand has accumulated inside the sand storage hopper. When sand discharge is required, the system automatically enters the pneumatic pulse anti-sand caking mode when the level gauge detects that the mud and sand deposited at the bottom has reached the set discharge height. First, the mud and sand at the bottom are backflushed to mix the sand and water. Then, the system automatically opens the sand discharge valve, the solenoid valve corresponding to the air lift branch pipe, and the air supply device. Air enters the pipe from the bottom of the sand discharge pipe along the air lift branch pipe, realizing unmanned automatic sand discharge using the air lift principle. The air lift sand discharge mode stops after a set time, thus effectively avoiding the situation of overflowing sand or ineffective sand discharge due to over-reliance on manual settings and inability to respond to sudden changes in mud and sand load. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the integrated vortex micro-sand purification mechanism of this utility model; Figure 2 This is a top view schematic diagram of the integrated vortex micro-sand purification mechanism of this utility model; Figure 3 This is a schematic diagram of the pneumatic conveying and sand removal system of this utility model; Figure 4 This is a three-dimensional structural diagram of the pneumatic pulse device of this utility model; Figure 5 This is a schematic diagram of the intelligent electronic control system structure of this utility model.

[0021] In the diagram: 1-1, Tank body; 1-2, Inlet pipe; 1-3, Outlet pipe; 1-4, Central column; 1-5, Flow guide tube; 1-6, Conical disc; 1-7, Settling plate; 1-8, Inspection hole; 1-9, Sand discharge hole; 1-10, Sand storage hopper; 2-1. Gas transmission device; 2-2. Sand discharge pipeline; 2-3. Pneumatic pulse device; 2-4. Gas transmission pipeline; 2-5. Air flushing branch pipe; 2-6. Air lifting branch pipe; 2-7. Backwashing branch pipe; 2-8. Tangential gas transmission branch pipe; 2-9. Sand discharge valve; 2-10. Solenoid valve; 3-1 Electrical control cabinet; 3-2 Photovoltaic equipment; 3-3 Level gauge; 3-4 Liquid level gauge. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Please see Figure 1-5 This utility model provides a technical solution: an integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal, including an integrated vortex micro-sand purification mechanism, a pneumatic conveying sand removal system, and an intelligent electrical control system. The integrated vortex micro-sand purification mechanism includes a device tank 1-1, an inlet pipe 1-2, an outlet pipe 1-3, a central column 1-4, a guide cylinder 1-5, a cone disc 1-6, a sedimentation disc 1-7, a sand discharge hole 1-9, and a sand storage hopper 1-10. The inlet pipe 1-2 is tangentially connected to the outer wall of the device tank 1-1, ensuring that the inlet water enters the guide cylinder 1-5 tangentially and forms a vortex. The centrifugal force generated by the vortex separates the sand and wastewater. The lower inner wall of the device tank 1-1 is fixedly connected to the upper part of the sedimentation disc 1-7. The bottom of the device tank 1-1 is provided with... A sand storage hopper 1-10 is provided. By setting a sand settling plate 1-7, it is ensured that the deposited sand and gravel fall into the sand settling plate 1-7 and slide down the inner wall of the sand settling plate 1-7 to the bottom of the device tank 1-1, i.e., the sand storage hopper 1-10. A guide cylinder 1-5 is fixedly installed inside the device tank 1-1. The water outlet pipe 1-3 is connected to the guide cylinder 1-5 at a vertical angle and passes through to the outside of the device tank 1-1. A central column 1-4 is fixedly installed inside the guide cylinder 1-5. A conical plate 1-6 is set at the bottom of the central column 1-4. A sand discharge hole 1-9 is opened at the center of the top of the device tank 1-1. An inspection hole 1-8 is also opened at the top of the device tank 1-1. There are at least two inspection holes 1-8. By setting the inspection holes 1-8, inspection can be carried out, and it is also convenient to retrieve suspended garbage.

[0027] The center elevation of the inlet pipe 1-2 is lower than the center elevation of the outlet pipe 1-3. This design can prevent turbulence from occurring in the inlet water, which would affect the flow pattern and thus the sand removal effect.

[0028] The working principle of the integrated vortex micro-sand purification mechanism is as follows: Untreated rainwater enters the device tank 1-1 tangentially through the inlet pipe 1-2, and spirals downwards along the outside of the guide tube 1-5. Under the action of centrifugal force and gravity, the sand and gravel move spirally along the inner guide tube 1-5 and sink, falling to the sedimentation plate 1-7 and sliding into the sand storage hopper 1-10. The separated clean water spirals upwards along the central column 1-4 and is finally discharged through the outlet pipe 1-3. The sand stored at the bottom can be pumped out through the sand discharge hole 1-9. Suspended solids and garbage in the water will float on the outside of the guide tube 1-5 and can be retrieved through the inspection hole 1-8.

[0029] The pneumatic conveying sand removal system includes an air conveying device 2-1, a sand removal pipe 2-2, a pneumatic pulse device 2-3, an air conveying pipe 2-4, an air flushing branch pipe 2-5, an air lift branch pipe 2-6, a backwashing branch pipe 2-7, a tangential air conveying branch pipe 2-8, a sand removal valve 2-9, and a solenoid valve 2-10. The sand removal pipe 2-2 is fixedly installed at the center of the device tank 1-1. A sand suction bell is located at the bottom of the sand removal pipe 2-2, in the lower part of the sand storage hopper 1-10. The outlet of the sand removal pipe 2-2 connects to the sand removal hole 1-9 at the top of the device tank 1-1, and a sand removal valve 2-9 is located in an easily accessible position. An air conveying pipe 2-4 is installed at the air outlet of the air conveying device 2-1. The air conveying pipe 2-4 branches into four branches: an air flushing branch pipe 2-5, an air lift branch pipe 2-6, a backwashing branch pipe 2-7, a tangential air conveying branch pipe 2-8, a sand removal valve 2-9, and a solenoid valve 2-10. The backwash branch pipe 2-7 and the tangential air supply branch pipe 2-8 are each equipped with a solenoid valve 2-10 to control whether each branch pipe is activated. The pneumatic pulse device 2-3 is fixedly installed at the bottom of the sand storage hopper 1-10, and the end of the backwash branch pipe 2-7 is fixedly connected to the pneumatic pulse device 2-3 to supply air to the pneumatic pulse device 2-3. By setting up an integrated vortex micro-sand purification mechanism and a pneumatic conveying sand discharge system, when the water volume is too small and the flow rate slows down, resulting in insufficient centrifugal force, the solenoid valve 2-10 corresponding to the tangential air supply branch pipe 2-8 and the air supply device 2-1 are opened. A large amount of air is output along the tangential air supply branch pipe 2-8. The gas input tangentially drives the water flow to accelerate and rotate to maintain a strong centrifugal force, which can effectively separate solid and liquid and ensure the sand removal effect.

[0030] The pneumatic pulse device 2-3 is in the form of a ring pipe, the diameter of which corresponds to the inner diameter of the sand storage hopper 1-10. Multiple pulse air outlets arranged in a ring array are set horizontally on the inner side of the ring pipe, with a number of pulse air outlets ≥ 4. By setting up a pneumatic conveying sand discharge system, and by opening the solenoid valve 2-10 corresponding to the backwash branch pipe 2-7 and the air conveying device 2-1, the multiple pulse air outlets of the pneumatic pulse device 2-3 are used to discharge gas in a pulse manner. This can achieve periodic air supply to the sand storage hopper 1-10, thereby disturbing the sand stored at the bottom, preventing caking, facilitating sand discharge, and not affecting the internal swirling flow state.

[0031] The end of the air flushing branch pipe 2-5 is connected to the top of the sand discharge pipe 2-2. This design allows for the periodic supply of air to the sand discharge pipe 2-2 to flush the pipe and prevent blockage. The end of the air-lift branch pipe 2-6 is connected to the lower part of the sand discharge pipe 2-2 and extends into its interior, bending upwards. This design can utilize the air-lift principle to achieve automatic sand discharge.

[0032] The end of the tangential air supply branch pipe 2-8 is located at the water outlet of the water inlet pipe 1-2. The outlet of the tangential air supply branch pipe 2-8 is in the same direction as the water inlet. When the water inlet volume is small, the swirling power and centrifugal force are insufficient, which will reduce the overall sand removal effect of the equipment. Therefore, when the water inlet volume is small, the tangential air supply branch pipe 2-8 can be opened to use air to drive the water inlet to rotate, ensuring centrifugal force and thus ensuring the sand removal effect.

[0033] The intelligent electrical control system includes an electrical control cabinet 3-1, a photovoltaic device 3-2, a level gauge 3-3, and a liquid level gauge 3-4. The electrical control cabinet 3-1 is electrically connected to the photovoltaic device 3-2, level gauge 3-3, liquid level gauge 3-4, and solenoid valve 2-10. The photovoltaic device 3-2 includes a battery for storing electrical energy and photovoltaic panels for absorbing solar energy. By installing the photovoltaic device 3-2, the entire device can be used in areas where electricity is inconvenient. The level gauge 3-3 is fixedly installed at the bottom of the sand storage hopper 1-10 to detect the sand level. The liquid level gauge 3-4 is fixedly installed inside the guide tube 1-5 to detect the liquid level. Through the intelligent electrical control system, after the equipment has run, the level in the sand storage hopper 1-10 will be monitored. When a certain amount of mud and sand has accumulated in the part and sand needs to be discharged, the system automatically enters the pneumatic pulse anti-sand caking mode when the mud and sand at the bottom reaches the set discharge height, as detected by the level gauge 3-3. First, the mud and sand at the bottom are backflushed to mix the sand and water. Then, the system automatically opens the discharge valve 2-9, the solenoid valve 2-10 corresponding to the air lift branch pipe 2-6, and the air supply device 2-1. Air enters the pipe from the bottom of the discharge pipe 2-2 along the air lift branch pipe 2-6. The air lift principle is used to realize unmanned automatic sand discharge. After the set time, the air lift sand discharge mode stops, thus effectively avoiding the situation of overflowing sand or ineffective sand discharge due to over-reliance on manual settings and inability to respond to sudden changes in mud and sand load.

[0034] The gas delivery device 2-1 can specifically be a Roots blower, a vortex blower, a rotary blower, or an air pump.

[0035] Solenoid valve 2-10 can be either an electric valve or a pneumatic valve.

[0036] The operating principle of the intelligent electronic control system is as follows: 1. Low Water Volume Enhanced Cyclone Operation Mode: When the water volume entering the equipment is small, the liquid level inside the equipment is low. For example, if the liquid level detected by the level gauge 3-4 is lower than the center elevation of the water outlet pipe 1-3, the system automatically judges that the cyclone formed by the water inlet is small, the flow rate is low, and the centrifugal force is insufficient, resulting in poor sand removal effect. The system automatically opens the solenoid valve 2-10 corresponding to the tangential air supply branch pipe 2-8 and the air supply device 2-1. A large amount of air is output along the tangential air supply branch pipe 2-8. The gas input tangentially drives the water flow to accelerate rotation in order to maintain a strong centrifugal force and ensure the sand removal effect.

[0037] 2. Pneumatic Pulse Anti-Sand Accumulation Mode: After the equipment has been running, a certain amount of mud and sand has accumulated inside the sand storage hopper 1-10. Pneumatic pulse is required to prevent the sand deposited at the bottom from caking. Specifically, the level gauge 3-3 detects the height of the mud and sand deposited at the bottom. If the height is ≥200mm and less than the sand discharge start height, the system automatically and periodically opens the solenoid valve 2-10 of the backwash branch pipe 2-7 and the air supply device 2-1. A large amount of air enters the pneumatic pulse device 2-3 along the backwash branch pipe 2-7 and is sprayed out from the air outlet to disturb the deposited mud and sand and prevent caking. The frequency and single flushing time of each backwash are determined according to the sand settling height. 3. Air-lift sand removal mode: When the level gauge 3-3 detects that the height of the mud and sand deposited at the bottom reaches the set sand removal height, the system automatically enters the pneumatic pulse anti-sand caking mode. First, the mud and sand at the bottom are backflushed to mix the sand and water. Then, the system automatically opens the sand removal valve 2-9, the solenoid valve 2-10 corresponding to the air-lift branch pipe 2-6, and the air supply device 2-1. Air enters the pipe from the bottom of the sand removal pipe 2-2 along the air-lift branch pipe 2-6, and the sand is removed by using the air-lift principle. The air-lift sand removal mode stops after the set time.

[0038] 4. Air-washing sand discharge pipeline anti-clogging mode: The system periodically executes the air-washing sand discharge pipeline anti-clogging mode according to a set cycle. When entering this mode, the sand discharge valve 2-9 is closed, and the solenoid valve 2-10 corresponding to the air supply device 2-1 and the air flushing branch pipe 2-5 is opened. A large amount of air enters the pipeline from the top of the sand discharge pipeline 2-2 along the air flushing branch pipe 2-5 to flush the pipeline and prevent the sand discharge pipeline 2-2 from clogging.

[0039] It should be noted that photovoltaic equipment 3-2 can be replaced by equipment that generates electricity from other clean energy sources such as wind power; and in areas where there are conditions for connecting to electricity, photovoltaic equipment 3-2 can be cancelled.

[0040] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal, comprising an integrated vortex micro-sand purification mechanism, a pneumatic conveying and sand removal system, and an intelligent electronic control system, characterized in that: The integrated vortex micro-sand purification mechanism includes a device tank (1-1), an inlet pipe (1-2), an outlet pipe (1-3), a central column (1-4), a guide tube (1-5), a cone disc (1-6), a sedimentation disc (1-7), a sand discharge hole (1-9), and a sand storage hopper (1-10). The inlet pipe (1-2) is tangentially connected to the outer wall of the device tank (1-1) to ensure that the water enters the guide tube (1-5) tangentially and forms a vortex. The lower inner wall of the device tank (1-1) is connected to the sedimentation disc. The upper part of the disc (1-7) is fixedly connected, and the bottom of the device tank (1-1) is provided with a sand storage hopper (1-10). The device tank (1-1) is fixedly installed with a guide cylinder (1-5). The water outlet pipe (1-3) is connected to the guide cylinder (1-5) at a vertical angle and passes through to the outside of the device tank (1-1). The guide cylinder (1-5) is fixedly installed with a central column (1-4). The bottom of the central column (1-4) is provided with a conical disc (1-6). The top center of the device tank (1-1) is provided with a sand discharge hole (1-9). The pneumatic conveying sand removal system includes an air conveying device (2-1), a sand removal pipe (2-2), a pneumatic pulse device (2-3), an air conveying pipe (2-4), an air flushing branch pipe (2-5), an air lifting branch pipe (2-6), a backwashing branch pipe (2-7), a tangential air conveying branch pipe (2-8), a sand removal valve (2-9), and a solenoid valve (2-10). The sand removal pipe (2-2) is fixedly installed at the center of the device tank (1-1). A sand suction flare is provided at the bottom of the sand removal pipe (2-2), which is located in the lower part of the sand storage hopper (1-10). The outlet of the sand removal pipe (2-2) is connected to the sand removal hole (1-9) at the top of the device tank (1-1). The outlet of the gas supply device (2-1) is equipped with a sand discharge valve (2-9) in an easily accessible location. The outlet of the gas supply device (2-1) is equipped with a gas supply pipe (2-4). The gas supply pipe (2-4) branches into four branches: a gas flushing branch pipe (2-5), a gas lifting branch pipe (2-6), a backwashing branch pipe (2-7), and a tangential gas supply branch pipe (2-8). Each branch pipe is equipped with a solenoid valve (2-10) to control whether each branch pipe is activated. The pneumatic pulse device (2-3) is fixedly installed at the bottom of the sand storage hopper (1-10), and the end of the backwashing branch pipe (2-7) is fixedly connected to the pneumatic pulse device (2-3) to supply gas to the pneumatic pulse device (2-3).

2. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The center elevation of the inlet pipe (1-2) is lower than the center elevation of the outlet pipe (1-3).

3. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The top of the device tank (1-1) is also provided with inspection holes (1-8), and the number of inspection holes (1-8) is at least two.

4. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The pneumatic pulse device (2-3) is in the form of a ring pipe, the diameter of which corresponds to the inner diameter of the sand storage hopper (1-10). Multiple pulse air outlets are arranged in a ring array on the inner side of the ring pipe in the horizontal direction, and the number of pulse air outlets is ≥4.

5. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The end of the air jet branch pipe (2-5) is connected to the top of the sand discharge pipe (2-2).

6. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The end of the air lift branch pipe (2-6) is connected to the lower part of the sand discharge pipe (2-2) and extends into its interior, bending upwards.

7. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The end of the tangential gas supply branch pipe (2-8) is located at the water outlet of the water inlet pipe (1-2), and the outlet of the tangential gas supply branch pipe (2-8) is in the same direction as the water inlet.

8. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The intelligent electrical control system includes an electrical control cabinet (3-1), a photovoltaic device (3-2), a level gauge (3-3), and a liquid level gauge (3-4). The electrical control cabinet (3-1) is electrically connected to the photovoltaic device (3-2), the level gauge (3-3), the liquid level gauge (3-4), and the solenoid valve (2-10). The photovoltaic device (3-2) includes a battery capable of storing electrical energy and a photovoltaic panel for absorbing solar energy. The level gauge (3-3) is fixedly installed at the bottom of the sand storage hopper (1-10) to detect the height of mud and sand. The liquid level gauge (3-4) is fixedly installed inside the guide tube (1-5) to detect the liquid level.

9. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The gas delivery device (2-1) can specifically be a Roots blower, a vortex blower, a rotary blower, or an air pump.

10. The integrated vortex micro-sand purification device based on pneumatic regulation to enhance sand removal according to claim 1, characterized in that: The solenoid valve (2-10) can be either an electric valve or a pneumatic valve.

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