Industrial wastewater purification and treatment device

Abstract

The present invention discloses an industrial wastewater purification treatment device, which relates to the field of wastewater treatment technology and includes a support frame, wherein a precipitation component is provided at the top of the support frame near one side edge, and an extraction component is provided at the top of the support frame near the other side edge. The industrial wastewater purification treatment device, after the separation of chromium ions in the wastewater and the wastewater is completed, pours a certain amount of resin into the interior of an annular groove, transports the wastewater to the interior of a stirring tank, and stirs the wastewater with a stirring rod so that the chromium ions in the chromium hydroxide are mixed with the adsorption resin, thereby realizing the extraction and storage of chromium in the wastewater, preventing the industrial wastewater from containing a large amount of metallic chromium from polluting the environment and causing waste of resources, and solving the problem that in the prior art, industrial wastewater containing chromium is mostly purified by precipitation and the metallic chromium in the wastewater cannot be recovered, resulting in waste of resources.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to an industrial wastewater purification treatment device. Background Art

[0002] Industrial wastewater purification and treatment equipment is used to treat wastewater generated in industrial production processes to meet discharge or reuse standards. It uses a variety of treatment methods such as physical, chemical, and biological methods to remove pollutants in wastewater, such as heavy metals, organic matter, suspended solids, and nutrients.

[0003] The existing chromium plating process is a process of plating a metal film on the metal surface using the principle of electrolysis. The cleaning process after electroplating produces a large amount of wastewater. The wastewater contains a high concentration of electroplated metal ions. In the chromium plating process, chromic acid that is not adsorbed by the plated parts will be discharged with the cleaning water. The concentration of chromium ions in the wastewater can be as high as several hundred milligrams per liter. In order to ensure the environmental purification of industrial wastewater, physical precipitation is often used to treat the cleaning water. Since the cleaning water contains various suspended solids, these suspended solids will gradually settle to the bottom of the sedimentation tank due to gravity. As the sedimentation process continues, a large amount of suspended solids accumulate at the bottom, forming sludge. A large amount of metallic chromium impurities contained in the sludge are also mixed with the sludge as the sludge concentrates, making it difficult to recover, thereby causing a waste of resources.

[0004] Therefore, we propose an industrial wastewater purification and treatment device to solve the problems mentioned above. Summary of the Invention

[0005] The object of the present invention is to provide an industrial wastewater purification device to solve the problem in the background art that chromium-containing industrial wastewater is mostly purified by precipitation and the metallic chromium in the wastewater cannot be recovered, resulting in waste of resources.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an industrial wastewater purification and treatment device, comprising a support frame, a sedimentation assembly is provided at the top of the support frame near one side edge, an extraction assembly is provided at the top of the support frame near the other side edge, the extraction assembly comprises a stirring tank, a drive motor is fixedly installed with screws near the center of the top of the stirring tank, the output shaft of the drive motor is fixedly connected to a stirring rod, a sealing cover is provided on the inner wall of the stirring tank, the stirring tank is fixedly connected to a collecting bin, a plurality of multi-stage electric telescopic rods are provided on the inner bottom surface of the collecting bin, a sealing plate is fixed between the top ends of the plurality of multi-stage electric telescopic rods, a leakage barrel is fixed on the inner top surface of the stirring tank, and an annular groove is provided between the outer surface of the leakage barrel and the inner wall of the stirring tank.

[0007] Preferably, the sedimentation assembly includes a stirring barrel, the bottom end of the stirring barrel is fixedly connected to the top of the support frame, a water pump is arranged on the top of the support frame, the input end of the water pump is fixedly connected to a drainage pipe, and the output end of the water pump is fixedly connected to an output pipe.

[0008] Preferably, a pH detector is provided on the inner wall of the mixing barrel, a mounting bracket is fixed on the top of the mixing barrel near one side edge, and two storage boxes are fixed on the inner top surface of the mounting bracket.

[0009] Preferably, the bottom end of one of the storage boxes is fixedly connected to an acid pipe, and the bottom end of the other storage box is fixedly connected to an ammonia pipe. A first solenoid valve is provided on the outer surfaces of the acid pipe and the ammonia pipe, and one end of the ammonia pipe is fixedly passed through the interior of the acid pipe.

[0010] Preferably, the bottom end of the stirring tank is fixedly connected to the top of the support frame, a delivery pump is provided on the top of the support frame, the input end of the delivery pump is fixedly connected to a connecting pipe, the output end of the delivery pump is fixedly connected to a delivery pipe, one end of the delivery pipe is fixedly passed through the interior of the stirring tank, and the bottom end of the stirring rod is movably passed through the interior of the stirring tank to the bottom wall.

[0011] Preferably, the top end of the output tube is fixedly passed through the interior of the mixing barrel, a servo motor is fixedly installed on the top of the mixing barrel by screws, a stirring rod is fixedly installed on the output end of the servo motor, and the bottom end of the stirring rod is movable through the interior of the mixing barrel to the bottom wall.

[0012] Preferably, the bottom end of the acid tube is fixedly passed through the interior of the mixing barrel, and a discharge pipe is fixedly connected to the outer surface of the mixing barrel near the bottom end, and one end of the discharge pipe is fixedly connected to one end of the connecting pipe.

[0013] Preferably, a collecting assembly is provided at the top of the support frame near the front surface, the collecting assembly includes a collecting box, the collecting box is provided inside the support frame, and a pressure sensor is provided on the outer surface of the collecting box.

[0014] Preferably, an air pump is provided on the top of the collection box, the output end of the air pump is fixedly connected to a negative pressure tube, and the bottom end of the negative pressure tube is fixedly passed through the interior of the collection box.

[0015] Preferably, the outer surface of the collection box is fixedly connected to a recovery pipe, a second solenoid valve is provided on the outer surface of the recovery pipe, and one end of the recovery pipe is fixedly passed through the interior of the stirring tank.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After the chromium ions in the wastewater are separated from the wastewater, a certain amount of resin is poured into the inside of the annular groove, and the wastewater is transported to the inside of the stirring tank. The wastewater is stirred by a stirring rod so that the chromium ions in the chromium hydroxide are mixed with the adsorption resin, thereby realizing the extraction and storage of chromium in the wastewater, preventing the industrial wastewater from containing a large amount of metallic chromium from polluting the environment and causing waste of resources, and solving the problem that the existing technology of chromium-containing industrial wastewater mostly adopts the precipitation method for purification and cannot recover the metallic chromium in the wastewater, causing waste of resources.

[0018] 2. When environmentally friendly means are needed to purify industrial wastewater, the wastewater is first transported to a mixing barrel and stirred. Hydrochloric acid and ammonia water are then transported to the mixing barrel respectively, so that chromium is precipitated in the form of chromium hydroxide, thereby achieving the separation of chromium ions in industrial wastewater. Moreover, since the entire device is sealed, environmentally friendly treatment of wastewater is guaranteed.

[0019] 3. After the chromium extraction is completed, the air pump is started first to make the negative pressure in the collection box reach the required value, and the second solenoid valve is opened, so that the wastewater in the mixing tank is transported to the inside of the collection box through the recovery pipe under the action of the pressure difference, thereby realizing the collection of wastewater and facilitating the subsequent purification of industrial wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front perspective view of an industrial wastewater purification and treatment device according to the present invention;

[0021] Figure 2 A partial perspective view of a sedimentation component of an industrial wastewater purification and treatment device according to the present invention;

[0022] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a partially cutaway perspective view of a mixing barrel of an industrial wastewater purification and treatment device according to the present invention;

[0024] Figure 5 This is a partial perspective view of an extraction component of an industrial wastewater purification and treatment device according to the present invention;

[0025] Figure 6 A partially cutaway perspective view of a stirring tank of an industrial wastewater purification and treatment device according to the present invention;

[0026] Figure 7 This is a cross-sectional perspective view of the stirring tank portion of an industrial wastewater purification and treatment device according to the present invention from another angle;

[0027] Figure 8 This is a partial three-dimensional diagram of the collection component of an industrial wastewater purification and treatment device of the present invention.

[0028] In the picture:

[0029] 1. Support frame; 2. Sedimentation assembly; 201. Mixing barrel; 202. Water pump; 203. Drainage pipe; 204. Output pipe; 205. Servo motor; 206. Stirring rod; 207. pH meter; 208. Mounting frame; 209. Storage tank; 210. Acid pipe; 211. Ammonia pipe; 212. First solenoid valve; 3. Discharge pipe; 4. Extraction assembly; 401. Mixing tank; 402. Delivery pump; 403. Connecting pipe; 404. Delivery pipe; 405. Drive motor; 406. Stirring rod; 407. Sealing cover; 408. Collection bin; 409. Multi-stage electric telescopic rod; 410. Sealing plate; 411. Annular groove; 412. Leakage barrel; 5. Collection assembly; 501. Collection box; 502. Air pump; 503. Negative pressure pipe; 504. Pressure sensor; 505. Recovery pipe; 506. Second solenoid valve. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] See also Figure 1-8 The present invention provides a technical solution: an industrial wastewater purification and treatment device, the sedimentation component 2 includes a stirring barrel 201, the bottom end of the stirring barrel 201 is fixedly connected to the top of the support frame 1, a water pump 202 is arranged on the top of the support frame 1, the input end of the water pump 202 is fixedly connected to a drainage pipe 203, the output end of the water pump 202 is fixedly connected to an output pipe 204, the top end of the output pipe 204 is fixedly passed through the interior of the stirring barrel 201, a servo motor 205 is fixedly installed on the top of the stirring barrel 201 by screws, a stirring rod 206 is fixedly installed on the output end of the servo motor 205, the bottom end of the stirring rod 206 is movable through the interior of the stirring barrel 201 to the bottom wall, and the inner wall of the stirring barrel 201 is provided with A pH tester 207, a mounting bracket 208 is fixed to the top of the mixing barrel 201 near one side edge, and two storage boxes 209 are fixed to the inner top surface of the mounting bracket 208, the bottom end of one storage box 209 is fixedly connected to an acid pipe 210, and the bottom end of the other storage box 209 is fixedly connected to an ammonia pipe 211, and a first solenoid valve 212 is provided on the outer surfaces of the acid pipe 210 and the ammonia pipe 211, one end of the ammonia pipe 211 is fixedly passed through the interior of the acid pipe 210, and the bottom end of the acid pipe 210 is fixedly passed through the interior of the mixing barrel 201, and the outer surface of the mixing barrel 201 near the bottom is fixedly connected to a discharge pipe 3, and one end of the discharge pipe 3 is fixedly connected to one end of the connecting pipe 403.

[0032] In this embodiment, the chrome plating process is a process of plating a metal film on the metal surface using the principle of electrolysis. The cleaning process after electroplating will generate a large amount of wastewater. When it is necessary to use environmentally friendly means to purify industrial wastewater, first, the pipe connecting the industrial wastewater is connected to one end of the drainage pipe 203 through a sealing gasket, and then the water pump 202 is started to draw industrial wastewater from the drainage pipe 203 to the external wastewater device. The wastewater is transported to the inside of the mixing barrel 201 through the output pipe 204, and then the servo motor 205 is started to drive the stirring rod 206 to rotate, thereby stirring the industrial wastewater in the mixing barrel 201. The first solenoid valve 212 provided on the surface of the acid pipe 210 is opened, so that the hydrochloric acid in the storage tank 209 connected thereto is transported to the interior of the mixing barrel 201 through the acid pipe 210, and the pH value of the wastewater is tested by the pH detector 207. The pH detector 207 is an instrument for measuring the pH value of a liquid, and has the characteristic of selectively transmitting hydrogen ions. When the glass electrode is immersed in the solution, the hydrogen ions on the surface of the electrode interact with the glass material to form a potential. The reference electrode provides a stable potential. A salt solution containing a known concentration is used to maintain a constant voltage output. The potential generated by the glass electrode is related to the concentration of hydrogen ions in the solution. The potential change is related to the pH value through the Nernst equation. The measured voltage signal is amplified, linearized and temperature compensated, converted into a pH value and displayed on the screen of the instrument. When the wastewater is weakly acidic, the first solenoid valve 212 can be closed, and then the wastewater is continued to be stirred. In an acidic environment, as the concentration of H⁺ increases, chromium exists in the form of hexavalent chromium. Due to the high stability of hexavalent chromium, it helps to keep chromium in a dissolved state, thereby avoiding the formation of precipitation and promoting the dissolution of chromium in the wastewater. Then, the valve set at The first solenoid valve 212 on the surface of the ammonia pipe 211 transports ammonia to the interior of the mixing barrel 201 through the storage tank 209 connected thereto. When the pH detector 207 detects that the pH value of the wastewater is between 7 and 9, the first solenoid valve 212 can be closed, thereby allowing chromium to precipitate in the form of chromium hydroxide. In order to further accelerate the precipitation of chromium, the servo motor 205 is continued to be started to continuously stir the wastewater and increase the precipitation efficiency of chromium. Through the action of the precipitation component 2, the separation of chromium ions in industrial wastewater is achieved, and since the entire device is sealed, the environmentally friendly treatment of wastewater is guaranteed.

[0033] like Figure 1 and Figure 5-Figure 7As shown, an industrial wastewater purification and treatment device includes a support frame 1, a sedimentation component 2 is set at the top of the support frame 1 near one side edge, an extraction component 4 is set at the top of the support frame 1 near the other side edge, the extraction component 4 includes a stirring tank 401, a driving motor 405 is fixedly installed near the center of the top of the stirring tank 401 by screws, the output shaft of the driving motor 405 is fixedly connected to a stirring rod 406, a sealing cover 407 is set on the inner wall of the stirring tank 401, and the stirring tank 401 is fixedly connected to a collection bin 408, and a plurality of multi-stage electric telescopic rods 409 are set on the inner bottom surface of the collection bin 408. A sealing plate 410 is fixed between the top ends of the movable telescopic rod 409, a leak barrel 412 is fixed to the inner top surface of the mixing tank 401, and an annular groove 411 is provided between the outer surface of the leak barrel 412 and the inner wall of the mixing tank 401. The bottom end of the mixing tank 401 is fixedly connected to the top of the support frame 1, and a delivery pump 402 is provided on the top of the support frame 1. The input end of the delivery pump 402 is fixedly connected to a connecting pipe 403, and the output end of the delivery pump 402 is fixedly connected to a delivery pipe 404. One end of the delivery pipe 404 is fixedly passed through the interior of the mixing tank 401, and the bottom end of the stirring rod 406 is movable through the interior of the mixing tank 401 to the bottom wall.

[0034] In this embodiment, after the chromium ions in the wastewater are separated from the wastewater, the sealing cover 407 is first separated from the stirring tank 401, and a certain amount of resin is poured into the annular groove 411. The leak barrel 412 is used to prevent the resin particles from entering the stirring tank 401. The delivery pump 402 is started to drive the connecting pipe 403 to extract wastewater from the stirring barrel 201. The wastewater enters the stirring tank 401 through the delivery pipe 404. Then, the driving motor 405 is started to drive the stirring rod 406 to rotate, thereby stirring the wastewater, thereby increasing the The chromium ions in the chromium hydroxide in the wastewater are mixed with the adsorption resin. During this process, the chromium ions will be captured by the adsorbent, thereby realizing the extraction of chromium. When the chromium extraction is completed, the wastewater in the stirring tank 401 is first pumped out, and then the multiple multi-stage electric telescopic rods 409 are started to shorten, driving the sealing plate 410 to move downward to a position flush with the inner bottom surface of the collection chamber 408, thereby making the bottom of the annular groove 411 connected to the interior of the collection chamber 408, so that the adsorption resin falls into the interior of the collection chamber 408 under the action of its own gravity, and then it can be opened as shown in FIG. Figure 6 The sealing plug shown is arranged at the bottom of the collection bin 408, so as to output the resin that adsorbs chromium, thereby realizing the extraction and storage of chromium in the wastewater, preventing the industrial wastewater from containing a large amount of metallic chromium from polluting the environment while also causing waste of resources, and solving the problem that the existing technology of chromium-containing industrial wastewater is mostly purified by precipitation and the metallic chromium in the wastewater cannot be recovered, resulting in waste of resources.

[0035] like Figure 1-Figure 4As shown, the bottom end of the acid tube 210 is fixedly passed through the interior of the mixing barrel 201, and the outer surface of the mixing barrel 201 is fixedly connected to a discharge pipe 3 near the bottom end, and one end of the discharge pipe 3 is fixedly connected to one end of the connecting pipe 403. A collecting component 5 is provided near the front surface of the top of the support frame 1, and the collecting component 5 includes a collecting box 501, which is provided inside the support frame 1, and a pressure sensor 504 is provided on the outer surface of the collecting box 501. An air pump 502 is provided on the top of the collecting box 501, and the output end of the air pump 502 is fixedly connected to a negative pressure pipe 503, and the bottom end of the negative pressure pipe 503 is fixedly passed through the interior of the collecting box 501, and the outer surface of the collecting box 501 is fixedly connected to a recovery pipe 505, and a second solenoid valve 506 is provided on the outer surface of the recovery pipe 505, and one end of the recovery pipe 505 is fixedly passed through the interior of the mixing tank 401.

[0036] In this embodiment, when the chromium extraction is completed, the air pump 502 is first started to drive the negative pressure tube 503 to extract gas into the interior of the collection box 501, and the pressure sensor 504 is turned on. The pressure sensor 504 measures the pressure through the static pressure principle of the liquid and the pressure difference in the collection box 501. When the pressure sensor 504 detects that the air pressure in the collection box 501 reaches the required value, the second solenoid valve 506 is opened, so that the wastewater in the mixing tank 401 is transported to the interior of the collection box 501 through the recovery pipe 505 under the action of the pressure difference, thereby realizing the collection of wastewater and facilitating the subsequent purification of industrial wastewater.

[0037] The usage and working principle of this device: The chrome plating process is a process of plating a metal film on the metal surface using the principle of electrolysis. The cleaning process after electroplating will produce a large amount of waste water. The pipe connected to the industrial waste water is connected to one end of the drainage pipe 203 through a sealing gasket, and then the water pump 202 is started to extract the industrial waste water from the external waste water device with the drainage pipe 203. The waste water is transported to the inside of the mixing barrel 201 through the output pipe 204, and then the servo motor 205 is started to drive the stirring rod 206 to rotate, thereby stirring the industrial waste water in the mixing barrel 201. By opening the first solenoid valve 212 set on the surface of the acid pipe 210, the solenoid valve set on the surface of the acid pipe 210 is opened. The hydrochloric acid in the connected storage tank 209 is transported to the inside of the mixing barrel 201 through the acid pipe 210, and the pH value of the wastewater is detected by the pH detector 207. Then, the first electromagnetic valve 212 arranged on the surface of the ammonia pipe 211 is opened, and ammonia is transported to the inside of the mixing barrel 201 through the storage tank 209 connected thereto. When the pH value of the wastewater is detected by the pH detector 207 to be between 7 and 9, the first electromagnetic valve 212 can be closed, so that chromium is precipitated in the form of chromium hydroxide. In order to further accelerate the precipitation of chromium, the servo motor 205 is continued to be started, thereby continuously stirring the wastewater to improve the precipitation efficiency of chromium. When the chromium in the wastewater is separated from the chromium, the servo motor 205 is continuously started. After the separation of the wastewater and the chromium hydroxide is completed, the sealing cover 407 is first separated from the stirring tank 401, and a certain amount of resin is poured into the annular groove 411. The delivery pump 402 is started to drive the connecting pipe 403 to extract wastewater into the interior of the stirring barrel 201. The wastewater enters the interior of the stirring tank 401 through the delivery pipe 404. Then the drive motor 405 is started to drive the stirring rod 406 to rotate, thereby stirring the wastewater, thereby increasing the mixing of chromium ions in the chromium hydroxide in the wastewater with the adsorption resin. In this process, the chromium ions will be captured by the adsorbent, thereby realizing the extraction of chromium. When the chromium extraction is completed, the air pump 502 is first started to drive the negative pressure pipe 503 to the collection box 50 1, and open the pressure sensor 504. When the pressure sensor 504 detects that the air pressure in the collection box 501 reaches the required value, it opens the second solenoid valve 506, so that the waste water in the mixing tank 401 is transported to the interior of the collection box 501 through the recovery pipe 505 under the action of the pressure difference, and then starts the multiple multi-stage electric telescopic rods 409 to shorten them, driving the sealing plate 410 to move downward to a position flush with the inner bottom surface of the collection bin 408, thereby making the bottom of the annular groove 411 communicate with the interior of the collection bin 408, so that the adsorption resin falls into the interior of the collection bin 408 under the action of its own gravity, and then the opening can be performed. Figure 6 A sealing plug is shown disposed at the bottom of the collection chamber 408 to discharge the chromium-adsorbed resin.

[0038] The wiring diagram of the water pump 202, servo motor 205, pH detector 207, first solenoid valve 212, delivery pump 402, drive motor 405, multi-stage electric telescopic rod 409, air pump 502, pressure sensor 504 and second solenoid valve 506 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to actual use. Therefore, the control method and wiring arrangement of the water pump 202, servo motor 205, pH detector 207, first solenoid valve 212, delivery pump 402, drive motor 405, multi-stage electric telescopic rod 409, air pump 502, pressure sensor 504 and second solenoid valve 506 will not be explained in detail.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An industrial wastewater purification treatment device, comprising a support frame (1), wherein a sedimentation component (2) is provided at the top of the support frame (1) near one side edge, and characterized in that: An extraction assembly (4) is provided at the top of the support frame (1) near the other side edge, the extraction assembly (4) comprising a stirring tank (401), a driving motor (405) being fixedly mounted on the top of the stirring tank (401) near the center thereof by screws, an output shaft of the driving motor (405) being fixedly connected to a stirring rod (406), a sealing cover (407) being provided on the inner wall of the stirring tank (401), a collecting bin (408) being fixedly connected to the stirring tank (401), a plurality of multi-stage electric telescopic rods (409) being provided on the inner bottom surface of the collecting bin (408), a sealing plate (410) being fixed between the top ends of the plurality of multi-stage electric telescopic rods (409), a leaking barrel (412) being fixed on the inner top surface of the stirring tank (401), an annular groove (411) being provided between the outer surface of the leaking barrel (412) and the inner wall of the stirring tank (401); The precipitation assembly (2) comprises a stirring barrel (201), the bottom end of the stirring barrel (201) is fixedly connected to the top of the support frame (1), a water pump (202) is provided on the top of the support frame (1), the input end of the water pump (202) is fixedly connected to a drainage pipe (203), and the output end of the water pump (202) is fixedly connected to an output pipe (204); A pH detector (207) is provided on the inner wall of the mixing barrel (201), and a mounting frame (208) is fixed to the top of the mixing barrel (201) near one side edge. Two storage boxes (209) are fixed to the inner top surface of the mounting frame (208); the bottom end of one of the storage boxes (209) is fixedly connected to an acid pipe (210), and the bottom end of the other storage box (209) is fixedly connected to an ammonia pipe (211). A first solenoid valve (212) is provided on the outer surfaces of the acid pipe (210) and the ammonia pipe (211), and one end of the ammonia pipe (211) is fixedly passed through the interior of the acid pipe (210).

2. The industrial wastewater purification device according to claim 1, characterized in that: The bottom end of the stirring tank (401) is fixedly connected to the top of the support frame (1), and a delivery pump (402) is provided on the top of the support frame (1). The input end of the delivery pump (402) is fixedly connected to a connecting pipe (403), and the output end of the delivery pump (402) is fixedly connected to a delivery pipe (404). One end of the delivery pipe (404) is fixedly passed through the interior of the stirring tank (401), and the bottom end of the stirring rod (406) is movable through the interior of the stirring tank (401) to the bottom wall.

3. The industrial wastewater purification device according to claim 1, characterized in that: The top end of the output tube (204) is fixedly connected to the interior of the mixing barrel (201), a servo motor (205) is fixedly installed on the top of the mixing barrel (201) by screws, a stirring rod (206) is fixedly connected to the output end of the servo motor (205), and the bottom end of the stirring rod (206) is movable through the interior of the mixing barrel (201) to the bottom wall.

4. The industrial wastewater purification device according to claim 1, characterized in that: The bottom end of the acid tube (210) is fixedly connected to the interior of the mixing barrel (201), and a discharge pipe (3) is fixedly connected to the outer surface of the mixing barrel (201) near the bottom end, and one end of the discharge pipe (3) is fixedly connected to one end of the connecting pipe (403).

5. The industrial wastewater purification device according to claim 4, characterized in that: A collecting assembly (5) is provided at the top of the support frame (1) near the front surface. The collecting assembly (5) comprises a collecting box (501). The collecting box (501) is provided inside the support frame (1). A pressure sensor (504) is provided on the outer surface of the collecting box (501).

6. The industrial wastewater purification device according to claim 5, characterized in that: An air pump (502) is provided on the top of the collection box (501), and the output end of the air pump (502) is fixedly connected to a negative pressure tube (503), and the bottom end of the negative pressure tube (503) is fixedly passed through the interior of the collection box (501).

7. The industrial wastewater purification device according to claim 6, characterized in that: The outer surface of the collection box (501) is fixedly connected to a recovery pipe (505), a second solenoid valve (506) is provided on the outer surface of the recovery pipe (505), and one end of the recovery pipe (505) is fixedly passed through the interior of the stirring tank (401).

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