Method for using an integrated device for treating inorganic hazardous waste liquid

Abstract

The present invention discloses a method for using an integrated device for treating inorganic hazardous waste liquids, the device comprising an automatic control system, an outer cylinder, an inner cylinder, an agitator, a driving device, a sedimentation cylinder, a sludge cylinder, and a water production cylinder, etc.; the device has a simple structure and is easy to operate, and is easy to control and collect secondary pollutants, with a small workload for operators, and is free of any external pipes or other reaction vessels, thereby avoiding direct exposure of operators to a harmful environment; the device can be widely applied to the treatment of inorganic hazardous waste liquids such as waste acid, waste alkali, and heavy metal waste liquid, and can achieve a good mud-water separation effect; by adopting an integrated device and an automatic control system, when using the device, the waste liquid can be treated in two modes, and the two control modes operate in a complementary manner, enabling the device to achieve the most reliable fully automatic operation state. The present invention solves technical problems in the field of inorganic waste liquid treatment, such as complex treatment device structure, poor operating environment, low degree of automation, and inconvenient operation.

Description

Technical Field

[0001] The present invention relates to the technical field of hazardous waste treatment, and in particular to a method for using an integrated device for treating inorganic hazardous waste liquid. Background Art

[0002] Conventional hazardous waste liquids include inorganic waste liquids and organic waste liquids. Inorganic waste liquids mainly refer to waste acid, waste alkali, heavy metal waste liquid, etc. Most of them are pretreated using physical and chemical processes. After achieving the standards for Class I pollutants, they enter the wastewater treatment system for further treatment and are reused or discharged after meeting the standards.

[0003] Conventional physical and chemical treatment processes often involve dispersed installation of various reaction units within a workshop, connected by pipelines and equipped with an exhaust gas collection system on the roof. This results in a poor overall operating environment and a low degree of automation. For example, the system includes multiple reactors, metering tanks, mixing tanks, dosing tanks, filter presses, filtrate tanks, buffer tanks, and vacuum pumps, resulting in a complex system and lengthy process lines.

[0004] There are also integrated treatment devices in the existing technology, but they mainly realize the functions of each process section through structural partitioning and are used to treat conventional domestic sewage.

[0005] On the basis of existing technologies, the search found that there were differences in the processing objects, or the processing technology routes were complicated, or the emphasis was on the process route and the degree of equipment was low.

[0006] In summary, there is currently no integrated device for the treatment of inorganic hazardous waste liquids. Summary of the Invention

[0007] The present invention provides a method for using an integrated treatment device for inorganic hazardous waste liquid, which is used to solve technical problems in the field of inorganic waste liquid treatment, such as complex treatment device structure, poor operating environment, low degree of automation, and inconvenient operation.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] The present invention provides a method for using an integrated device for treating inorganic hazardous waste liquids, wherein the integrated device comprises an automatic control system, an outer cylinder, an inner cylinder, a settling cylinder, a sludge cylinder, and a water production cylinder.

[0010] A feed pipe tangential to the cylinder wall is provided on the upper portion of the side wall of the outer cylinder. The feed pipe is connected to the interior of the outer cylinder and is used to input the inorganic hazardous waste liquid to be treated. An observation window for observation is also provided on the side wall of the outer cylinder.

[0011] The inner cylinder is arranged in the center of the outer cylinder, the upper part of the inner cylinder is cylindrical, and the bottom side wall is inclined and funnel-shaped; the top plate of the inner cylinder is provided with a dosing pipe, a vent pipe and a flushing pipe connected to the top plate of the outer cylinder; an agitator is arranged in the center of the inner cylinder, the agitator includes a rotating shaft and blades, the top end of the agitator rotating shaft passes through the top plates of the inner cylinder and the outer cylinder and is provided with a driving device, and a clamping piece for clamping the agitator rotating shaft is provided in the hole through which the top plate of the inner cylinder and the agitator rotating shaft pass; a plurality of rows of water outlets are provided on the upper part of the side wall of the inner cylinder, and a plurality of water outlets are provided in each row, and are arranged at intervals in the vertical direction of the side wall of the inner cylinder; an inner cylinder mud discharge pipe is provided at the bottom of the inner cylinder, and the outlet of the inner cylinder mud discharge pipe is connected to the sludge barrel;

[0012] The sludge cylinder is arranged at the center of the bottom surface of the outer cylinder, the top plate of the sludge cylinder is arranged horizontally, and the water production cylinder is arranged between the sludge cylinder and the outer cylinder; the top plate of the water production cylinder is arranged obliquely around the top plate of the sludge cylinder, the bottom end of the top plate of the water production cylinder is arranged at the edge of the top plate of the sludge cylinder, and the top end of the top plate of the water production cylinder is arranged on the side wall of the outer cylinder; the interlayer between the top plate of the water production cylinder and the bottom side wall of the inner cylinder is the sedimentation cylinder;

[0013] A sedimentation tube sludge discharge pipe is provided on the top plate of the sludge tube, which connects the sedimentation tube and the sludge tube and is used to receive the sludge in the sedimentation tube. A sludge tube sludge discharge pipe for discharging the sludge from the device is provided at the bottom of the side wall of the sludge tube, and the outlet of the sludge tube sludge discharge pipe extends out of the outer tube body;

[0014] A high-liquid-level drain pipe and a low-liquid-level drain pipe are connected between the top plate of the water production cylinder and the sedimentation cylinder to receive the clear liquid in the sedimentation cylinder. A water production cylinder drain pipe is provided at the bottom of the side wall of the water production cylinder to discharge the clear liquid out of the device. The outlet of the water production cylinder drain pipe extends out of the outer cylinder body.

[0015] The method for using the integrated inorganic hazardous waste liquid treatment device comprises the following steps:

[0016] S1, feeding: Inorganic hazardous waste liquid enters the integrated device along the tangential direction through the feeding pipe. When the set liquid level is reached in the inner cylinder, the feeding pipe stops feeding water;

[0017] S2, cyclone sand removal: Under the pressure of the feed port, the inorganic hazardous waste liquid generates a strong rotation between the inner wall of the outer cylinder and the outer wall of the inner cylinder. The part with higher density in the waste liquid moves to the lower part of the outer cylinder and enters the sedimentation cylinder, while the part with lower density in the waste liquid moves to the upper part of the outer cylinder and enters the inner cylinder through the water outlet;

[0018] S3, static sedimentation: The sludge in the sedimentation tank is statically settled. According to the mud-water separation effect, the clear liquid on the upper part of the sedimentation tank is discharged to the water production tank through the high liquid level drain pipe or the low liquid level drain pipe; the sludge at the bottom of the sedimentation tank is connected to the sludge tank through the sedimentation tank sludge discharge pipe;

[0019] S4, flocculation and sedimentation: The type of reagents added to the inner cylinder is selected based on the online water quality monitoring data, including acid and alkali solution, redox agent, flocculant, and coagulant aid. The agitator starts to rotate under the drive of the drive device. The drive device rotates at a low speed to achieve the flocculation and mixing process. Small particles of impurities and colloidal substances in the waste liquid gradually form alum flocs with the reagents. After stopping the stirring, the inner cylinder enters a static sedimentation state. When the mud layer reaches a stable state, the inner cylinder mud discharge pipe is opened to discharge the sludge into the sludge drum.

[0020] S5, centrifugal dehydration: After the inner cylinder mud discharge pipe is closed, the remaining clear liquid in the inner cylinder; the inner cylinder clamping piece is fixed with the rotating shaft, and then the driving device drives the rotating shaft to rotate, and the rotating shaft drives the inner cylinder to rotate at high speed, and the waste liquid in the inner cylinder enters the centrifugal dehydration state; the clear liquid with lower density rises along the inner side wall of the inner cylinder, passes through the water outlet, enters the interlayer between the inner wall of the outer cylinder and the outer wall of the inner cylinder, and then flows downward into the sedimentation cylinder and is discharged to the water production cylinder through the low liquid level drain pipe; the muddy liquid with higher density remains in the lower part of the inner cylinder, and the sludge is discharged to the sludge cylinder through the inner cylinder mud discharge pipe;

[0021] S6, standby: the final sludge in the sludge cylinder is discharged from the integrated device through the sludge cylinder sludge discharge pipe and enters the subsequent treatment process; the final water produced in the water production cylinder is discharged from the integrated device through the water production cylinder drain pipe and enters the subsequent treatment process; the integrated device completes each process of a cycle and enters the standby state.

[0022] Preferably, the feed pipe, dosing pipe, vent pipe, flushing pipe, high liquid level drain pipe, low liquid level drain pipe, inner cylinder sludge drain pipe, sedimentation cylinder sludge drain pipe, sludge cylinder sludge drain pipe and water production cylinder drain pipe are all provided with electric valves whose start and stop are controlled by an automatic control system. The automatic control system can control the opening and closing state of the electric valve, the amount of chemical addition, and adjust the operating frequency of the drive device.

[0023] Preferably, the top end of the rotating shaft is fixedly connected to the driving device, and the blades include at least four groups, with two blades provided in each group.

[0024] Preferably, the driving device adopts a variable frequency motor, which can achieve low-speed or high-speed rotation.

[0025] Preferably, the top plate of the outer cylinder is also provided with an instrument hole for observing the working status of the instrument.

[0026] Preferably, ultrasonic sludge interface meters are provided in the outer cylinder, the inner cylinder, the sedimentation cylinder, the water production cylinder and the sludge cylinder.

[0027] Preferably, an online water quality monitor is also provided in the inner cylinder, which can monitor at least pH, redox potential and conductivity parameters.

[0028] Preferably, the feed pressure of the feed pipe is not less than 0.25 MPa.

[0029] Preferably, an observation window is vertically arranged on the outer wall of the outer cylinder for observing the internal state of the device.

[0030] Preferably, the sludge drum discharge pipe and the water production drum discharge pipe are perpendicular to each other.

[0031] The beneficial effects of the present invention are embodied in:

[0032] 1) The present invention provides an integrated treatment device for inorganic hazardous waste liquid, comprising an automatic control system, an outer cylinder, an inner cylinder, an agitator, a drive device, a sedimentation cylinder, a sludge cylinder, and a water production cylinder, etc.; the overall quality of the device meets the standards, the structure is simple and easy to operate, and it is easy to control and collect secondary pollutants. The workload of the device operator is small, and there are no external pipes or other reaction vessels, which avoids direct exposure of the operator to a harmful environment, and the device has strong safety; the internal structure of the device is scientifically designed and can be widely applied to the treatment of inorganic hazardous waste liquids such as waste acid, waste alkali, and heavy metal waste liquid, and can achieve good mud-water separation effect.

[0033] 2) The present invention provides a method for using an integrated device for treating inorganic hazardous waste liquid. By adopting an integrated device and an automatic control system, the waste liquid can be treated in two modes. One is that the operator controls the start and stop of each valve through the automatic control system to achieve control of the valve opening and closing status, the amount of reagent added, and the adjustment of the driving device operating frequency; the other is that the automatic control system can set the process flow of each process, whether to skip processes, the operating time, the valve opening and closing status, etc. according to the sequencing batch reaction mode; the above two control modes complement each other to enable the device to achieve the most reliable fully automatic operation state.

[0034] 3) The present invention provides a method for using an integrated device for treating inorganic hazardous waste liquids. The device has a high degree of automation and is particularly suitable for small-scale inorganic hazardous waste liquids that mainly remove one type of pollutants.

[0035] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention; the main purpose and other advantages of the present invention can be realized and obtained through the solutions particularly pointed out in the description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a vertical cross-sectional view AA of the integrated processing device of the present invention.

[0037] Figure 2 FIG. BB is a horizontal cross-sectional view of the integrated processing device of the present invention.

[0038] Figure 3 It is a horizontal cross-sectional view CC of the integrated processing device of the present invention.

[0039] Figure 4 It is a horizontal cross-sectional view DD of the integrated processing device of the present invention.

[0040] Figure 5 It is a horizontal cross-sectional view EE of the integrated processing device of the present invention.

[0041] Figure markings: 1-outer cylinder, 2-inner cylinder, 3-sedimentation cylinder, 4-sludge cylinder, 5-water production cylinder, 6-feeding pipe, 7-observation window, 8-dosing pipe, 9-vent pipe, 10-flushing pipe, 11-agitator, 12-driving device, 13-water outlet, 14-inner cylinder sludge discharge pipe, 15-sedimentation cylinder sludge discharge pipe, 16-sludge cylinder sludge discharge pipe, 17-high liquid level drain pipe, 18-low liquid level drain pipe, 19-water production cylinder drain pipe, 20-rotating shaft, 21-blade, 22-instrument hole. DETAILED DESCRIPTION

[0042] The technical solutions of the present invention are described in detail below through examples. The following examples are merely exemplary and can only be used to explain and illustrate the technical solutions of the present invention, and cannot be interpreted as limiting the technical solutions of the present invention.

[0043] This embodiment takes the sub-item in a certain project - inorganic hazardous waste liquid treatment as an example, and provides a method for using an integrated inorganic hazardous waste liquid treatment device, wherein the device includes an automatic control system, an outer cylinder 1, an inner cylinder 2, an agitator 11, a driving device 12, a sedimentation cylinder 3, a sludge cylinder 4, a water production cylinder 5, a device interface, an observation window 7, etc.; the device adopts a sequencing batch reaction mode, and in the same device, it consists of six basic processes in chronological order: water intake, cyclone sand removal, static sedimentation, flocculation sedimentation, centrifugal dehydration, and standby, and finally realizes the separation of mud and water in hazardous waste liquid, a type of pollutants enters the sludge, and the produced water meets the standard for entering the subsequent process for further treatment.

[0044] Reference Figure 1-5 In this embodiment, the present invention provides a method for using an integrated inorganic hazardous waste liquid treatment device, which includes an automatic control system, an outer cylinder 1, and an inner cylinder 2, a sedimentation cylinder 3, a sludge cylinder 4, and a water production cylinder 5 are arranged inside the outer cylinder 1;

[0045] A feed pipe 6 tangential to the cylinder wall is provided on the upper part of the side wall of the outer cylinder 1. The feed pipe 6 is connected to the interior of the outer cylinder 1 and is used to input the inorganic hazardous waste liquid that needs to be treated; the side wall of the outer cylinder 1 is also provided with an observation window 7 for observation, and the observation window 7 is vertically arranged along the outer wall of the outer cylinder 1 for observing the operating status of each cylinder inside the device; the inner cylinder 2 is arranged in the center of the outer cylinder 1, the upper part of the inner cylinder 2 is cylindrical, and the bottom side wall is inclined to form a funnel shape; the top plate of the inner cylinder 2 is provided with a dosing pipe 8, a vent pipe 9 and a flushing pipe 10 connected to the top plate of the outer cylinder 1; the top plate of the outer cylinder 1 is also provided with an instrument hole 22 for observing the working status of each instrument in the device;

[0046] A stirrer 11 is arranged in the center of the inner cylinder 2. The stirrer 11 includes a rotating shaft 20 and blades 21. The top end of the rotating shaft 20 of the stirrer 11 passes through the top plate of the inner cylinder 2 and the top plate of the outer cylinder 1 and is provided with a driving device 12. A clamping piece for clamping the rotating shaft 20 of the stirrer 11 is provided in the hole through which the top plate of the inner cylinder 2 and the rotating shaft 20 of the stirrer 11 pass; the blades 21 include at least four groups, with two blades 21 provided in each group; the top end of the rotating shaft 20 of the stirrer 11 passes through the top plate of the inner cylinder 2 and the top plate of the outer cylinder 1 and is fixedly connected to the driving device 12. The driving device 12 adopts a variable frequency motor, which can realize low-speed or high-speed rotation to meet the use requirements of different speeds; a plurality of rows of water outlets 13 are provided on the upper part of the side wall of the inner cylinder 2, and a plurality of water outlets 13 are provided in each row, which are arranged at intervals in the vertical direction of the side wall of the inner cylinder 2; an inner cylinder sludge discharge pipe 14 is provided at the bottom of the inner cylinder 2, and the outlet of the inner cylinder sludge discharge pipe 14 is connected to the sludge barrel 4;

[0047] The sludge cylinder 4 is arranged at the center of the bottom surface of the outer cylinder 1, and the top plate of the sludge cylinder 4 is arranged horizontally. A water production cylinder 5 is arranged between the sludge cylinder 4 and the outer cylinder 1; the top plate of the water production cylinder 5 is arranged obliquely around the top plate of the sludge cylinder 4, the bottom end of the top plate of the water production cylinder 5 is arranged at the edge of the top plate of the sludge cylinder 4, and the top end of the top plate of the water production cylinder 5 is arranged on the side wall of the outer cylinder 1; the interlayer between the top plate of the water production cylinder 5 and the bottom side wall of the inner cylinder 2 is the sedimentation cylinder 3;

[0048] A sedimentation tube sludge discharge pipe 15 is provided on the top plate of the sludge tube 4. The sedimentation tube sludge discharge pipe 15 connects the sedimentation tube 3 and the sludge tube 4 and is used to receive the sludge in the sedimentation tube 3. A sludge tube sludge discharge pipe 16 for discharging the sludge from the device is provided at the bottom of the side wall of the sludge tube 4. The outlet of the sludge tube sludge discharge pipe 16 extends out of the outer cylinder 1. A high liquid level drain pipe 17 and a low liquid level drain pipe 18 are provided between the top plate of the water production tube 5 and the sedimentation tube 3 to receive the clear liquid in the sedimentation tube 3. A water production tube drain pipe 19 for discharging the clear liquid from the device is provided at the bottom of the side wall of the water production tube 5. The outlet of the water production tube drain pipe 19 extends out of the outer cylinder 1. The sludge tube drain pipe 16 and the water production tube drain pipe 19 are perpendicular to each other to avoid mutual interference.

[0049] Ultrasonic sludge interface meters are installed in the outer cylinder 1, inner cylinder 2, sedimentation cylinder 3, water production cylinder 5 and sludge cylinder 4. The inner cylinder 2 is also equipped with an online water quality monitor that can monitor at least parameters such as pH, redox potential and conductivity.

[0050] The feed pipe 6, dosing pipe 8, vent pipe 9, flushing pipe 10, high liquid level drain pipe 17, low liquid level drain pipe 18, inner cylinder sludge discharge pipe 14, sedimentation cylinder sludge discharge pipe 15, sludge cylinder sludge discharge pipe 16 and water production cylinder drain pipe 19 are all provided with electric valves whose start and stop are controlled by the automatic control system. The automatic control system can control the opening and closing state of the electric valves, the amount of chemical addition, and adjust the operating frequency of the drive device 12.

[0051] The present invention also provides a method for using the above-mentioned integrated inorganic hazardous waste liquid treatment device, comprising the following steps:

[0052] S1, feeding: the inorganic hazardous waste liquid enters the integrated device along the tangential direction through the feed pipe 6. The feed pressure of the feed pipe 6 is not less than 0.25 MPa. When the set liquid level in the inner cylinder 2 is reached, the feed pipe 6 stops feeding;

[0053] S2, cyclone sand removal: Under the pressure of the feed port, the inorganic hazardous waste liquid generates a strong rotation between the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2. The part with higher density in the waste liquid moves to the lower part of the outer cylinder 1 and enters the sedimentation cylinder 3, while the part with lower density in the waste liquid moves to the upper part of the outer cylinder 1 and enters the inner cylinder 2 through the water outlet 13;

[0054] S3, static sedimentation: The sludge in the sedimentation tank 3 is statically settled. Depending on the mud-water separation effect, the upper clear liquid of the sedimentation tank 3 is discharged to the water production tank 5 through the high liquid level drain pipe 17 or the low liquid level drain pipe 18; the sludge at the bottom of the sedimentation tank 3 is connected to the sludge tank 4 through the sedimentation tank sludge discharge pipe 15;

[0055] S4, flocculation and sedimentation: The type of reagent added to the inner cylinder 2 is selected based on the online water quality monitoring data, including acid and alkali solution, redox agent, flocculant, coagulant aid, etc.; the agitator 11 starts to rotate under the drive of the drive device 12; the drive device 12 rotates at a low speed to achieve the flocculation and mixing process, and small particles of impurities and colloidal substances in the waste liquid gradually form alum flocs with the reagents; after stopping the stirring, the inner cylinder 2 enters a static sedimentation state. When the mud layer reaches a stable state, the electric valve of the inner cylinder mud discharge pipe 14 is opened to discharge the sludge into the sludge drum 4;

[0056] S5, centrifugal dehydration: After the inner cylinder mud discharge pipe 14 is closed, the remaining clear liquid in the inner cylinder 2; the inner cylinder 2's clamping piece is clamped and fixed with the rotating shaft 20, and then the driving device 12 drives the rotating shaft 20 to rotate, and the rotating shaft 20 drives the inner cylinder 2 to rotate at high speed, and the waste liquid in the inner cylinder 2 enters the centrifugal dehydration state; the clear liquid with lower density rises along the inner side wall of the inner cylinder 2, passes through the water outlet 13, enters the interlayer between the inner side wall of the outer cylinder 1 and the outer side wall of the inner cylinder 2, and flows downward into the sedimentation cylinder 3, and is discharged to the water production cylinder 5 through the low liquid level drain pipe 18; the muddy liquid with higher density remains in the lower part of the inner cylinder 2, and is discharged to the sludge cylinder 4 through the inner cylinder mud discharge pipe 14;

[0057] S6, standby: the final sludge in the sludge cylinder 4 is discharged from the integrated device through the sludge cylinder sludge discharge pipe 16 and enters the subsequent treatment process; the final water produced in the water production cylinder 5 is discharged from the integrated device through the water production cylinder drain pipe 19 and enters the subsequent treatment process; the integrated device completes each process of a cycle and enters the standby state.

[0058] Furthermore, in this embodiment, an observation window 7 is provided throughout the device, which can realize the purpose of manually observing the internal status of each cylinder, and is convenient for the operating personnel to intuitively understand the operating conditions; the outer wall of the outer cylinder 1 is solid and stable, and the inner cylinder 2 is lightweight and has a hole on the upper part; all the openings on the wall of the inner cylinder 2 correspond to the short interface tubes on the outer cylinder 1, realizing the external interface function of the inner cylinder 2; the driving device 12 adopts a variable frequency motor, which can realize low-speed and high-speed rotation.

[0059] Furthermore, in this embodiment, all interface valves are motorized, with an automatic control system providing interlocking control over their start and stop. An ultrasonic sludge interface meter is installed within each cylinder, and an online water quality monitor, including pH, redox potential, and conductivity measurements, is installed within the inner cylinder. These interlocking mechanisms enable precise control of valve opening and closing, reagent dosage, and the operating frequency of the drive unit 12. The automatic control system also configures the process flow, whether to skip processes, operating time, and valve opening and closing status, based on the sequencing batch reaction model. These two control modes complement each other, achieving the most reliable, fully automated operation.

[0060] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that a person skilled in the art can conceive within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for using an integrated device for treating inorganic hazardous waste liquid, characterized in that: The inorganic hazardous waste liquid integrated treatment device comprises an automatic control system, an outer cylinder (1), and an inner cylinder (2), a sedimentation cylinder (3), a sludge cylinder (4), and a water production cylinder (5) are arranged inside the outer cylinder (1); A feed pipe (6) tangential to the outer cylinder (1) is provided on the upper portion of the side wall of the outer cylinder (1). The feed pipe (6) is in communication with the interior of the outer cylinder (1) and is used to input inorganic hazardous waste liquid to be treated. An observation window (7) for observation is also provided on the side wall of the outer cylinder (1). The inner cylinder (2) is arranged in the center of the outer cylinder (1). The upper part of the inner cylinder (2) is cylindrical, and the bottom side wall is inclined and funnel-shaped. The top plate of the inner cylinder (2) is provided with a dosing pipe (8), a vent pipe (9) and a flushing pipe (10) which are connected to the top plate of the outer cylinder (1). The stirrer (11) is arranged in the center of the inner cylinder (2). The stirrer (11) includes a rotating shaft (20) and blades (21). The top end of the rotating shaft (20) of the stirrer (11) passes through the top plate of the inner cylinder (2) and the outer cylinder (1 ) top plate and is provided with a driving device (12); a clamping piece for clamping the agitator (11) rotating shaft (20) is provided in the hole through which the agitator (11) rotating shaft (20) passes through the top plate of the inner cylinder (2); a plurality of rows of water outlets (13) are provided on the upper part of the side wall of the inner cylinder (2); a plurality of water outlets (13) are provided in each row and are arranged at intervals in the vertical direction of the side wall of the inner cylinder (2); an inner cylinder mud discharge pipe (14) is provided at the bottom of the inner cylinder (2), and the outlet of the inner cylinder mud discharge pipe (14) is communicated with the sludge barrel (4); The sludge cylinder (4) is arranged at the center of the bottom surface of the outer cylinder (1), the top plate of the sludge cylinder (4) is arranged horizontally, and a water production cylinder (5) is arranged between the sludge cylinder (4) and the outer cylinder (1); the top plate of the water production cylinder (5) is arranged obliquely around the top plate of the sludge cylinder (4), the bottom end of the top plate of the water production cylinder (5) is arranged at the edge of the top plate of the sludge cylinder (4), and the top end of the top plate of the water production cylinder (5) is arranged on the side wall of the outer cylinder (1); the interlayer between the top plate of the water production cylinder (5) and the bottom side wall of the inner cylinder (2) is a sedimentation cylinder (3); A sedimentation tube sludge discharge pipe (15) is provided on the top plate of the sludge tube (4), the sedimentation tube sludge discharge pipe (15) is connected to the sedimentation tube (3) and the sludge tube (4), and is used to receive sludge in the sedimentation tube (3). A sludge tube sludge discharge pipe (16) for discharging sludge is provided at the bottom of the side wall of the sludge tube (4), and the outlet of the sludge tube sludge discharge pipe (16) extends out of the outer tube body (1); A high liquid level drain pipe (17) and a low liquid level drain pipe (18) are provided between the top plate of the water production cylinder (5) and the sedimentation cylinder (3) for receiving the clear liquid in the sedimentation cylinder (3). A water production cylinder drain pipe (19) for discharging the clear liquid from the device is provided at the bottom of the side wall of the water production cylinder (5). The outlet of the water production cylinder drain pipe (19) extends out of the outer cylinder body (1); The method for using the integrated inorganic hazardous waste liquid treatment device comprises the following steps: S1, feeding: the inorganic hazardous waste liquid enters the integrated device along the tangential direction through the feeding pipe (6). When the set liquid level is reached in the inner cylinder (2), the feeding pipe (6) stops feeding water; S2, cyclone sand removal: Under the pressure of the feed port, the inorganic hazardous waste liquid generates a strong rotation between the inner wall of the outer cylinder (1) and the outer wall of the inner cylinder (2), and the part with a higher density in the waste liquid moves toward the lower part of the outer cylinder (1) and enters the sedimentation cylinder (3), while the part with a lower density in the waste liquid moves toward the upper part of the outer cylinder (1) and enters the inner part of the inner cylinder (2) through the water outlet (13); S3, static sedimentation: The sludge in the sedimentation cylinder (3) is statically settled. According to the mud-water separation effect, the upper clear liquid of the sedimentation cylinder (3) is discharged to the water production cylinder (5) through the high liquid level drainage pipe (17) or the low liquid level drainage pipe (18); the sludge at the bottom of the sedimentation cylinder (3) is connected to the sludge cylinder (4) through the sedimentation cylinder sludge discharge pipe (15); S4, flocculation and sedimentation: the type of reagent added to the inner cylinder (2) is selected according to the online water quality monitoring data, including acid and alkali solution, redox agent, flocculant, and coagulant aid; the agitator (11) starts to rotate under the drive of the driving device (12); the driving device (12) rotates at a low speed to realize the flocculation and mixing process, and the small particles of impurities and colloidal substances in the waste liquid gradually form alum flowers with the reagents; after stopping the stirring, the inner cylinder (2) enters a static sedimentation state, and when the mud layer reaches a stable state, the inner cylinder mud discharge pipe (14) is opened to discharge the sludge into the sludge drum (4); S5, centrifugal dehydration: after the inner cylinder mud discharge pipe (14) is closed, the remaining clear liquid in the inner cylinder (2); the clamping piece of the inner cylinder (2) is clamped and fixed with the rotating shaft (20), and then the driving device (12) drives the rotating shaft (20) to rotate, and the rotating shaft (20) drives the inner cylinder (2) to rotate at a high speed, and the waste liquid in the inner cylinder (2) enters the centrifugal dehydration state; the clear liquid with a lower density rises along the inner side wall of the inner cylinder (2) through the water outlet (13) and enters the interlayer between the inner side wall of the outer cylinder (1) and the outer side wall of the inner cylinder (2), and then enters the sedimentation cylinder (3) downward, and is discharged to the water production cylinder (5) through the low liquid level drain pipe (18); the mud liquid with a higher density remains in the lower part of the inner cylinder (2), and the sludge is discharged to the sludge cylinder (4) through the inner cylinder mud discharge pipe (14); S6, standby: the final sludge in the sludge drum (4) is discharged from the integrated device through the sludge drum discharge pipe (16) and enters the subsequent treatment process; The final produced water in the water production cylinder (5) is discharged from the integrated device through the water production cylinder drain pipe (19) and enters the subsequent treatment process; the integrated device completes each process of a cycle and enters the standby state.

2. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: The feed pipe (6), the dosing pipe (8), the vent pipe (9), the flushing pipe (10), the high-liquid-level drain pipe (17), the low-liquid-level drain pipe (18), the inner cylinder sludge drain pipe (14), the sedimentation cylinder sludge drain pipe (15), the sludge cylinder sludge drain pipe (16) and the water production cylinder drain pipe (19) are all provided with electric valves whose start and stop are controlled by the automatic control system. The automatic control system can control the opening and closing state of the electric valves, the dosage of the reagent, and the operating frequency of the adjustment drive device (12).

3. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: The top end of the rotating shaft (20) is fixedly connected to the driving device (12), and the blades (21) include at least four groups, with two blades (21) provided in each group.

4. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: The driving device (12) adopts a variable frequency motor and can realize low speed or high speed rotation.

5. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: The top plate of the outer cylinder (1) is also provided with an instrument hole (22) for observing the working status of the instrument.

6. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: Ultrasonic sludge interface meters are provided in the outer cylinder (1), the inner cylinder (2), the sedimentation cylinder (3), the water production cylinder (5) and the sludge cylinder (4).

7. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: The inner cylinder (2) is also provided with an online water quality monitor, which can at least monitor pH, redox potential and conductivity parameters.

8. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: The feed pressure of the feed pipe (6) is not less than 0.25 MPa.

9. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: An observation window (7) is vertically arranged on the outer wall of the outer cylinder (1) and is used to observe the internal state of the device.

10. The method for using the integrated device for treating inorganic hazardous waste liquid according to claim 1, wherein: The sludge drum discharge pipe (16) and the water production drum discharge pipe (19) are perpendicular to each other.

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