A high-salinity industrial wastewater environmental protection treatment device

Abstract

The present application relates to the field of wastewater treatment, especially to a kind of high salinity industrial wastewater environmental protection treatment device.The high salinity industrial wastewater environmental protection treatment device of the present application, by main aeration pipe in circulating vertical pipe, high salinity wastewater is treated by circulating aeration, extend the aeration treatment time of high salinity wastewater, complete multiple aeration treatment high salinity wastewater passes through flow tank and enters second cabin, while air extraction booster equipment continuously sucks the exhaust stream in first cabin and transports to vice aeration pipe, and the high salinity wastewater in second cabin is treated by secondary aeration.The high salinity industrial wastewater environmental protection treatment device of the present application solves the technical problems of low oxygen solubility, poor oxygen transfer efficiency and high energy consumption in the process of traditional high salinity wastewater aeration treatment.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more particularly to an environmentally friendly treatment device for high-salinity industrial wastewater. Background Technology

[0002] In the treatment of high-salinity industrial wastewater, aeration is necessary to provide dissolved oxygen to aerobic microorganisms, enabling efficient degradation of organic pollutants and achieving biological purification. However, in high-salinity environments, the dissolved oxygen concentration in the wastewater is inherently low. This is because for every 100 mg / L increase in salt concentration, dissolved oxygen decreases by approximately 1%. Simultaneously, salinity reduces the surface tension of the solution, affecting bubble stability and oxygen mass transfer efficiency, thus lowering the oxygen transfer efficiency of the aeration system. This low dissolved oxygen state directly leads to a relatively increased oxygen consumption in the wastewater treatment system. Microorganisms consume oxygen to degrade pollutants, and insufficient initial dissolved oxygen means a longer aeration time or higher aeration intensity is required to meet the same oxygen demand, significantly increasing energy consumption. Furthermore, low dissolved oxygen environments easily lead to sludge putrefaction, flotation, and denitrification, further weakening the stability and purification effect of the treatment system. Therefore, the aeration treatment of high-salinity industrial wastewater faces multiple drawbacks: low dissolved oxygen, poor oxygen transfer efficiency, and high energy consumption, representing a key technological bottleneck restricting its efficient biological treatment. Summary of the Invention

[0003] In order to overcome the multiple drawbacks of low dissolved oxygen, poor oxygen transfer efficiency and high energy consumption in the aeration treatment of high salinity industrial wastewater, this invention provides an environmental protection treatment device for high salinity industrial wastewater.

[0004] Technical Solution: A high-salinity industrial wastewater environmental protection treatment device, comprising a wastewater tank, a maintenance cover, an inlet pipe, an outlet pipe, a suction pipe, a secondary aeration pipe, a suction booster device, an exhaust pipe, a circulation vertical pipe, a main aeration pipe, a rotary motor, a rotating shaft, and a pumping impeller; a first chamber structure is located on the left side of the wastewater tank; a second chamber structure is located on the right side of the wastewater tank; a flow channel connects the lower sides of the first and second chambers of the wastewater tank; a maintenance cover is installed on the wastewater tank; an inlet pipe is fixedly connected to the wastewater tank for conveying high-salinity wastewater into the first chamber; an outlet pipe is fixedly connected to the wastewater tank for discharging high-salinity wastewater from the second chamber; a suction pipe is fixedly connected to the wastewater tank for drawing exhaust gas from the first chamber; and a pumping impeller is fixedly connected to the wastewater tank for conveying exhaust gas into the second chamber. Secondary aeration pipes are installed in the second chamber for secondary aeration treatment of waste gas flow. Several secondary aeration holes are provided on the secondary aeration pipes. An air extraction and pressurization device is installed on the wastewater tank, which transports the waste gas flow drawn in through the suction pipe to the secondary aeration pipes. An exhaust pipe is fixedly connected to the wastewater tank, discharging the waste gas flow from the second chamber. A circulation vertical pipe is fixedly connected to the first chamber of the wastewater tank. A main aeration pipe is fixedly connected inside the circulation vertical pipe. Several main aeration holes are provided on the main aeration pipe. Several spiral guide strips are provided on the outer surface of the main aeration pipe. A rotary motor is installed on the wastewater tank. A rotating shaft is fixedly connected to the output shaft of the rotary motor. Several pumping blades are fixedly connected to the rotating shaft, and the pumping blades are located inside the lower liquid inlet port of the circulation vertical pipe.

[0005] Furthermore, a filter column is detachably fixed inside the suction tube; an end cap is detachably fixed at the upper end of the suction tube.

[0006] Furthermore, several disintegration rods are fixedly connected to the rotating shaft.

[0007] In another embodiment, the upper outlet port of the circulating riser is further fixed with an intercepting filter bucket for collecting scum; a scum removal mechanism for removing scum is installed in the first compartment of the wastewater tank; and a scum removal mechanism is also installed in the second compartment of the wastewater tank.

[0008] Furthermore, the slag removal mechanism consists of a slag discharge cylinder, a screw conveyor pusher, and a drive motor. The slag discharge cylinder is fixedly connected inside the wastewater tank. A slag inlet channel structure is opened in the upper middle part of the slag discharge cylinder. A screw conveyor pusher that collects slag and pushes it forward is rotatably connected inside the slag discharge cylinder. A drive motor that drives the screw conveyor pusher to rotate is installed on the slag discharge cylinder. The drive motor continuously drives the screw conveyor pusher to rotate inside the slag discharge cylinder. The slag generated in the wastewater tank continuously accumulates on the surface of the high-salt wastewater. As the thickness of the slag continuously increases, the slag will enter the slag discharge cylinder through the slag inlet channel and be pushed forward along the slag discharge cylinder by the continuously rotating screw conveyor pusher.

[0009] Furthermore, the bottom of the slag discharge cylinder is provided with several liquid discharge holes.

[0010] In another embodiment, the auxiliary aeration pipe is further composed of an air supply pipe, branch pipes, and a spiral guide plate; an air supply pipe is fixedly connected to the lower side of the second compartment of the wastewater tank; the air outlet of the air extraction and pressurization equipment is connected to the air supply pipe; several branch pipes are connected to the air supply pipe; auxiliary aeration holes are opened on the outside of the branch pipes; and a spiral guide plate is fixedly connected to the outer surface of the branch pipes.

[0011] Furthermore, the outlet ports of the secondary aeration holes on the branch pipes are respectively oriented towards the lower region of the corresponding spiral guide plate.

[0012] In another embodiment, the air intake pipe of the air pumping booster is further connected to an air supply valve.

[0013] Furthermore, the intake pipe of the air extraction and booster equipment is connected to an oxygen concentration sensor.

[0014] Beneficial Effects: This solution provides an environmentally friendly treatment device for high-salinity industrial wastewater. The wastewater tank contains a first chamber and a second chamber. A rotary motor drives a pumping impeller to circulate the high-salinity wastewater in the first chamber through a circulating vertical pipe. Simultaneously, the high-salinity wastewater is aerated through the main aeration pipe within the circulating vertical pipe, extending the aeration time. After multiple aeration treatments, the high-salinity wastewater passes through a flow channel into the second chamber. At the same time, an air extraction and pressurization device continuously draws waste gas from the first chamber and delivers it to the auxiliary aeration pipe for secondary aeration treatment of the high-salinity wastewater in the second chamber. Based on this solution, oxygen concentration monitoring using an oxygen concentration sensor is implemented, and closed-loop feedback control is introduced to replenish oxygen flow in a timely manner. This prevents insufficient oxygen supply during waste gas reuse, which could lead to failure of secondary aeration treatment. This improves upon the core technical problem of high viscosity in high-salinity wastewater, which hinders oxygen diffusion. It also solves the multiple drawbacks of traditional high-salinity wastewater aeration treatment processes, such as low dissolved oxygen, poor oxygen transfer efficiency, and high energy consumption. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the wastewater tank of the present invention; Figure 3 This is a three-dimensional cross-sectional view of the circulating vertical pipe of the present invention; Figure 4 This is a perspective view of the rotating shaft of the present invention; Figure 5 This is a perspective view of the auxiliary aeration pipe of the present invention; Figure 6 This is a perspective view of the slag removal mechanism of the present invention; Figure 7 This is a three-dimensional cross-sectional view of the suction tube of the present invention.

[0016] Attached reference numerals: 1-Wastewater tank, 101-First compartment, 102-Second compartment, 103-Flow channel, 11-Inspection cover, 12-Inlet pipe, 13-Outlet pipe, 21-Suction pipe, 211-Filter column, 212-End cap, 22-Secondary aeration pipe, 2201-Secondary aeration hole, 221-Air supply pipe, 222-Branch pipe, 223-Spiral guide plate, 23-Air extraction and pressurization equipment, 24-Exhaust gas pipe 25-Gas supply valve, 26-Oxygen concentration sensor, 31-Circulation vertical pipe, 32-Main aeration pipe, 3201-Main aeration hole, 3202-Spiral guide bar, 33-Rotary motor, 34-Rotating shaft, 35-Pumping blade, 36-Dispersing rod, 4-Interception filter bucket, 5-Slag removal mechanism, 501-Slag inlet channel, 502-Drainage hole, 51-Slag discharge cylinder, 52-Spiral conveying push rod, 53-Drive motor. Detailed Implementation

[0017] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0018] Example 1: A high-salinity industrial wastewater environmental protection treatment device according to this example, such as... Figures 1-7As shown, it includes a wastewater tank 1, an inspection cover 11, an inlet pipe 12, an outlet pipe 13, a suction pipe 21, a filter column 211, an end cap 212, a secondary aeration pipe 22, a suction and pressurization device 23, an exhaust pipe 24, a circulation vertical pipe 31, a main aeration pipe 32, a rotary motor 33, a rotating shaft 34, a pumping blade 35, and a dispersing rod 36; the wastewater tank 1 has a first compartment 101 structure on the left side; the wastewater tank 1 has a second compartment 102 structure on the right side; both the first compartment 101 and the second compartment 102 of the wastewater tank 1 are equipped with liquid level sensors; the first compartment 101 and the second compartment of the wastewater tank 1... A flow channel 103 is connected between the lower sides of compartment 102; an inspection cover 11 for observing the first compartment 101 and the second compartment 102 is installed on the wastewater tank 1; an inlet pipe 12 connected to the first compartment 101 is fixed to the wastewater tank 1, and the inlet pipe 12 is connected to a high-salinity wastewater conveying device; an outlet pipe 13 connected to the second compartment 102 is fixed to the wastewater tank 1, and the outlet pipe 13 is connected to a high-salinity wastewater next treatment device; a suction pipe 21 connected to the first compartment 101 is fixed to the wastewater tank 1; a filter column 211 is pluggably fixed inside the suction pipe 21; the upper end of the suction pipe 21 is detachably fixed. The wastewater tank 1 has an end cap 212, which allows for easy replacement of the filter column 211 inside the suction pipe 21. A secondary aeration pipe 22, connecting to the second chamber 102, is fixedly connected to the wastewater tank 1. The secondary aeration pipe 22 has several secondary aeration holes 2201. An air extraction and pressurization device 23 is installed on the wastewater tank 1. The air inlet pipe of the air extraction and pressurization device 23 is connected to the suction pipe 21, and the air outlet pipe of the air extraction and pressurization device 23 is connected to the secondary aeration pipe 22. An exhaust pipe 24, connecting to the second chamber 102, is fixedly connected to the wastewater tank 1. A circulation vertical pipe 31 is fixedly connected to the first chamber 101 of the wastewater tank 1. A main aeration pipe 32 is fixedly connected inside the circulating riser 31. The air inlet of the main aeration pipe 32 passes through the circulating riser 31 and the wastewater tank 1 and is connected to an external oxygen supply and gas delivery device. Several main aeration holes 3201 are opened on the main aeration pipe 32. Several spiral guide strips 3202 are provided on the outer surface of the main aeration pipe 32. A rotary motor 33 is installed on the wastewater tank 1. A rotating shaft 34 is fixedly connected to the output shaft of the rotary motor 33. Several pumping blades 35 are fixedly connected to the rotating shaft 34, and the pumping blades 35 are located in the lower liquid inlet of the circulating riser 31. Several dispersing rods 36 are fixedly connected to the rotating shaft 34.

[0019] like Figure 2 , Figure 3 and Figure 6As shown, an intercepting filter 4 is fixedly connected to the upper outlet port of the circulating vertical pipe 31; two slag removal mechanisms 5 are installed in the first chamber 101 of the wastewater tank 1, and the installation height of the outlet pipe 13 is lower than the installation height of the slag removal mechanism 5; a slag removal mechanism 5 is also installed in the second chamber 102 of the wastewater tank 1; the slag removal mechanism 5 consists of a slag discharge cylinder 51, a screw conveyor push rod 52, and a drive motor 53; a slag discharge cylinder 51 is fixedly connected to the wastewater tank 1; a slag inlet channel 501 structure is opened in the middle of the upper side of the slag discharge cylinder 51; a screw conveyor push rod 52 is rotatably connected inside the slag discharge cylinder 51; a drive motor 53 is installed on the slag discharge cylinder 51; the drive motor 5... The output shaft of 3 is fixedly connected to the screw conveyor push rod 52; the drive motor 53 continuously drives the screw conveyor push rod 52 to rotate inside the slag discharge cylinder 51. The scum generated in the wastewater tank 1 continuously accumulates on the surface of the high-salt wastewater. As the thickness of the scum continues to build up, the scum will enter the slag discharge cylinder 51 through the scum inlet channel 501. The continuously rotating screw conveyor push rod 52 pushes the scum forward along the slag discharge cylinder 51. The bottom of the slag discharge cylinder 51 is provided with several drainage holes 502. During the process of the screw conveyor push rod 52 pushing the scum along the slag discharge cylinder 51, some wastewater will be squeezed out. The wastewater flows back into the high-salt wastewater through the drainage holes 502 of the slag discharge cylinder 51.

[0020] The working steps of a circulating aeration treatment device for high-salinity industrial wastewater are as follows.

[0021] An external high-salinity wastewater conveying device continuously delivers high-salinity wastewater into the first chamber 101 of the wastewater tank 1 through the inlet pipe 12. The high-salinity wastewater passes through the flow channel 103 into the second chamber 102. The high-salinity wastewater levels in the first and second chambers 101 and 102 gradually rise. When the level sensor in the wastewater tank 1 detects that the high-salinity wastewater level has reached the height of the outlet pipe 13, the high-salinity wastewater flows out from the outlet pipe 13 to the next external treatment device. At this time, the external high-salinity wastewater conveying device reduces its conveying power to prevent the high-salinity wastewater levels in the first and second chambers 101 and 102 from rising further. During the continuous delivery of the high-salinity wastewater into the first chamber 101 through the inlet pipe 12, the rotary motor 33 drives the rotating shaft 34 and its connected pumping blades 35 and dispersing rods 36 to rotate at high speed. 5. High-salinity wastewater is continuously drawn upwards into the circulating riser 31. At the same time, the rotating dispersing rod 36 disperses the sludge that enters the circulating riser 31 with the high-salinity wastewater, preventing sludge agglomeration and blockage. This allows the high-salinity wastewater in the first compartment 101 to continuously circulate through the circulating riser 31. Simultaneously, the external oxygen supply and aeration equipment continuously sprays oxygen into the high-salinity wastewater in the circulating riser 31 through the main aeration hole 3201 of the main aeration pipe 32. This achieves circulating aeration treatment of the high-salinity wastewater circulating in the first compartment 101 through the oxygen supply. The high-salinity wastewater flows upwards along the spiral guide strip 3202 on the outer surface of the main aeration pipe 32 in a spiral upward path, prolonging the retention time of the high-salinity wastewater in the circulating riser 31 and its contact time with the oxygen supply, thereby improving the contact efficiency between the high-salinity wastewater and oxygen.

[0022] After being discharged from the top of the circulation vertical pipe 31, the high-salinity wastewater will pass downward through the interception filter 4. The interception filter 4 will intercept the scum generated during the aeration treatment of the high-salinity wastewater, and the scum accumulated in the interception filter 4 will be removed to the outside of the wastewater tank 1 by the scum removal mechanism 5 in the first chamber 101.

[0023] The secondary aeration treatment steps of a high-salinity industrial wastewater environmental protection treatment device are as follows.

[0024] When the oxygen supply stream enters the circulation riser 31 to circulate and aerate the high-salinity wastewater, only a small amount of oxygen dissolves into the wastewater. The oxygen supply stream is discharged upwards from the circulation riser 31, becoming waste gas that accumulates at the top of the first chamber 101. The waste gas still retains a high oxygen content. The high-salinity wastewater, having completed circulation and aeration, enters the second chamber 102 through the flow channel 103. The high-salinity wastewater then flows upwards through the auxiliary aeration pipe 22 along the second chamber 102. Simultaneously, the extraction and pressurization device 23 continuously extracts the waste gas from the first chamber 101 through the suction pipe 21. The filter column 211 will then... Impurities are filtered out in the exhaust gas flow into the suction pipe 21, and the exhaust gas flow is amplified so that it is transported to the secondary aeration pipe 22 under pressure. The exhaust gas flow is then sprayed out through the secondary aeration holes 2201 of the secondary aeration pipe 22 into the high-salinity wastewater in the second chamber 102. The remaining oxygen in the exhaust gas flow is used to perform secondary aeration treatment on the high-salinity wastewater in the second chamber 102. The steps in this embodiment are equivalent to utilizing the oxygen in the same gas twice, which improves the utilization efficiency of the oxygen flow and greatly reduces the supply demand of fresh air or pure oxygen, thereby directly reducing the energy consumption and operating cost of the aeration process.

[0025] In addition, the oxygen concentration in the airflow delivered to the first chamber 101 and the second chamber 102 is different. The wastewater is first treated by circulating aeration in the first chamber 101, and then enters the second chamber 102 for secondary aeration treatment, forming an orderly graded treatment process. This can keep the microorganisms at different stages in a more suitable oxygen concentration environment, which is conducive to the step-by-step degradation of pollutants and improves the final effluent quality. Finally, the high salinity wastewater that has completed the secondary aeration treatment flows out through the liquid outlet pipe 13 to the next external treatment equipment. The waste gas flow that has completed the secondary aeration is discharged to the outside through the waste gas pipe 24. When a large amount of scum accumulates on the surface of the high salinity wastewater in the second chamber 102, the scum can also be removed to the outside of the wastewater tank 1 by the scum removal mechanism 5 in the second chamber 102.

[0026] Example 2, based on Example 1, such as Figures 1-7As shown in this embodiment, a high-salinity industrial wastewater environmental protection treatment device includes an auxiliary aeration pipe 22 composed of an air supply pipe 221, branch pipes 222, and a spiral guide plate 223. The air supply pipe 221 is fixedly connected to the lower side of the second compartment 102 of the wastewater tank 1. The outlet port of the air extraction and pressurization device 23 is connected to the air supply pipe 221. Several branch pipes 222 are connected to the air supply pipe 221. All auxiliary aeration holes 2201 are respectively opened on the outside of each branch pipe 222. Each branch pipe 222 has a fixed connection on its outer surface. There is a spiral guide plate 223; the air outlet of the auxiliary aeration hole 2201 on each branch pipe 222 faces the lower area of ​​the corresponding spiral guide plate 223; during the secondary aeration treatment of high salinity wastewater in the second chamber 102 through the auxiliary aeration pipe 22, the high salinity wastewater continuously flows from the first chamber 101 of the wastewater tank 1 into the second chamber 102 through the flow channel 103, and the high salinity wastewater flows along the spiral guide plate 223 on the outer surface of the branch pipe 222 in the second chamber 102. The wastewater flows upward along a spiral path, extending the upward flow path of the high-salinity wastewater and increasing the time for secondary aeration treatment. Simultaneously, the exhaust gas continuously pumped by the air extraction and pressurization device 23 into the air supply pipe 221 is ejected through the secondary aeration holes 2201 of each branch pipe 222 into the high-salinity wastewater in the second chamber 102 for secondary aeration treatment. The continuously ejected exhaust gas continuously pushes the high-salinity wastewater to impact the lower side wall of the spiral guide plate 223. The continuous and violent impact will generate strong turbulence and vortices in the high-salinity wastewater. Under the action of impact and strong shear force, the bubbles will be broken into smaller and more numerous microbubbles. The ratio of the total surface area to volume of the bubbles increases sharply. At the same time, the turbulence can effectively reduce the thickness of the liquid film at the gas-liquid interface, reduce the resistance of oxygen molecules to diffuse from the gas phase to the liquid phase, effectively increase the dissolution efficiency of oxygen in the high-salinity wastewater, further improve the core technical problem of high viscosity of high-salinity wastewater which is not conducive to oxygen diffusion, and reduce the total consumption of oxygen flow.

[0027] Example 3, based on Example 1, such as Figures 1-7As shown in this embodiment, a high-salinity industrial wastewater environmental protection treatment device includes an air pumping and boosting device 23 whose inlet pipe is connected to an air supply valve 25. The air supply valve 25 is initially closed, and its inlet port is connected to an external oxygen supply device. An oxygen concentration sensor 26 is connected to the air inlet pipe of the air pumping and boosting device 23. The air pumping and boosting device 23 continuously pumps wastewater gas from the first chamber 101 of the wastewater tank 1 to the auxiliary aeration pipe 22 for secondary aeration treatment of the high-salinity wastewater in the second chamber 102. During this process, the oxygen concentration sensor 26 continuously monitors whether the oxygen concentration in the wastewater gas pumped by the air pumping and boosting device 23 is lower than a set standard value. When the oxygen concentration sensor 26 detects that the oxygen concentration in the wastewater gas is lower than the set standard value, the air supply valve 25 switches to the open state, and the external oxygen supply device... The oxygen supply and delivery equipment delivers oxygen to the waste gas stream drawn by the extraction and boosting equipment 23 through the gas delivery valve 25, keeping the oxygen concentration in the waste gas stream higher than the set standard value. This ensures that when the high-salinity wastewater in the second chamber 102 is subjected to secondary aeration treatment, there is enough oxygen in the waste gas stream to dissolve in the high-salinity wastewater, ensuring the normal operation of the secondary aeration treatment of high-salinity wastewater. It realizes oxygen concentration monitoring based on oxygen concentration sensor 26, and introduces closed-loop feedback control to replenish the oxygen stream in a timely manner. This solves the problem of insufficient oxygen supply that easily occurs in waste gas reuse, which leads to the failure of secondary aeration treatment. It maximizes the recovery and utilization of waste gas resources and realizes intelligent on-demand consumption of oxygen stream. It is a high-salinity wastewater treatment solution that combines economy, reliability and intelligence.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-salinity industrial wastewater environmental protection treatment device, comprising a wastewater tank (1); an inspection cover (11) is installed on the wastewater tank (1); characterized in that, The wastewater tank (1) has a first compartment (101) structure on the left side; a second compartment (102) structure on the right side; a flow channel (103) connects the lower sides of the first compartment (101) and the second compartment (102) of the wastewater tank (1); it also includes an inlet pipe (12); an inlet pipe (12) for conveying high-salinity wastewater into the first compartment (101) is fixedly connected to the wastewater tank (1); the wastewater tank (1) has an inlet pipe (12) on top for conveying high-salinity wastewater into the first compartment (101); A discharge pipe (13) is fixedly connected to the wastewater tank (1) to discharge high-salinity wastewater from the second compartment (102); a suction pipe (21) is fixedly connected to the wastewater tank (1) to draw waste gas from the first compartment (101); a secondary aeration pipe (22) is fixedly connected to the wastewater tank (1) to spray waste gas into the second compartment (102) for secondary aeration treatment; the secondary aeration pipe (22) is provided with several secondary aeration holes (2201); the wastewater tank (1) is... An exhaust booster device (23) is installed, which transports the exhaust gas drawn through the suction pipe (21) to the auxiliary aeration pipe (22); an exhaust pipe (24) for discharging exhaust gas from the second compartment (102) is fixedly connected to the wastewater tank (1); a circulation riser (31) is fixedly connected to the first compartment (101) of the wastewater tank (1); a main aeration pipe (32) is fixedly connected to the circulation riser (31); the main aeration pipe (32) is fixedly connected to the main aeration pipe (32). 2) Several main aeration holes (3201) are provided on the upper part; several spiral guide strips (3202) are provided on the outer surface of the main aeration pipe (32); a rotary motor (33) is installed on the wastewater tank (1); a rotating shaft (34) is fixedly connected to the output shaft of the rotary motor (33); several pumping blades (35) are fixedly connected to the rotating shaft (34), and the pumping blades (35) are located in the lower liquid inlet port of the circulation vertical pipe (31).

2. The environmental protection device for treating high-salinity industrial wastewater according to claim 1, characterized in that, A filter column (211) is pluggably fixed inside the suction tube (21); an end cap (212) is detachably fixed at the upper end of the suction tube (21).

3. The environmental protection device for treating high-salinity industrial wastewater according to claim 1, characterized in that, Several disintegrating rods (36) are fixedly connected to the rotating shaft (34).

4. The environmental protection device for treating high-salinity industrial wastewater according to claim 1, characterized in that, The upper outlet port of the circulating vertical pipe (31) is fixed with an intercepting filter (4) for collecting scum; a scum removal mechanism (5) for removing scum is installed in the first compartment (101) of the wastewater tank (1); a scum removal mechanism (5) is also installed in the second compartment (102) of the wastewater tank (1).

5. A high-salinity industrial wastewater environmental protection treatment device according to claim 4, characterized in that, The slag removal mechanism (5) consists of a slag discharge cylinder (51), a screw conveyor push rod (52), and a drive motor (53). The slag discharge cylinder (51) is fixedly connected inside the wastewater tank (1). A slag inlet channel (501) is provided in the middle of the upper side of the slag discharge cylinder (51). A screw conveyor push rod (52) that collects slag and pushes it forward is rotatably connected inside the slag discharge cylinder (51). A drive motor (53) that drives the screw conveyor push rod (52) to rotate is installed on the slag discharge cylinder (51). The drive motor (53) continuously drives the screw conveyor push rod (52) to rotate inside the slag discharge cylinder (51). The slag generated in the wastewater tank (1) continuously accumulates on the surface of the high-salt wastewater. As the thickness of the slag continuously increases, the slag will enter the slag discharge cylinder (51) through the slag inlet channel (501) and be pushed forward along the slag discharge cylinder (51) by the continuously rotating screw conveyor push rod (52).

6. The environmental protection device for treating high-salinity industrial wastewater according to claim 5, characterized in that, The bottom of the slag discharge cylinder (51) is provided with several drainage holes (502).

7. A high-salinity industrial wastewater environmental protection treatment device according to claim 1, characterized in that, The secondary aeration pipe (22) consists of an air supply pipe (221), a branch pipe (222) and a spiral guide plate (223); the air supply pipe (221) is fixedly connected to the lower side of the second compartment (102) of the wastewater tank (1); the air outlet of the air extraction and pressurization device (23) is connected to the air supply pipe (221); several branch pipes (222) are connected to the air supply pipe (221); the secondary aeration hole (2201) is opened on the outside of the branch pipe (222); the spiral guide plate (223) is fixedly connected to the outer surface of the branch pipe (222).

8. A high-salinity industrial wastewater environmental protection treatment device according to claim 7, characterized in that, The air outlets of the secondary aeration holes (2201) on the branch pipe (222) are respectively directed toward the lower area of ​​the corresponding spiral guide plate (223).

9. A high-salinity industrial wastewater environmental protection treatment device according to any one of claims 1-8, characterized in that, The air intake pipe of the air pumping booster (23) is connected to an air supply valve (25).

10. A high-salinity industrial wastewater environmental protection treatment device according to claim 9, characterized in that, The intake pipe of the air pumping booster (23) is connected to the oxygen concentration sensor (26).

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