Environment-friendly industrial wastewater purification treatment device

Abstract

The invention discloses an environment-friendly industrial wastewater purification treatment device, and relates to the technical field of wastewater treatment, the environment-friendly industrial wastewater purification treatment device comprises a support frame, a precipitation assembly is arranged at the top of the support frame close to one side edge, and an extraction assembly is arranged at the top of the support frame close to the other side edge. According to the environment-friendly industrial wastewater purification treatment device, after chromium ions in wastewater are separated from the wastewater, quantitative resin is poured into an annular groove, the wastewater is conveyed into a stirring tank, and the wastewater is stirred through a stirring rod, so that the chromium ions in chromium hydroxide are mixed with the adsorption resin, and thus chromium in the wastewater is extracted and stored; the industrial wastewater is prevented from containing a large amount of metal chromium to pollute the environment and cause resource waste, and the problem that in the prior art, the chromium-containing industrial wastewater is mostly purified in a precipitation mode, and the metal chromium in the wastewater cannot be recycled, so that the resource waste is caused is solved.

Description

Technical Field

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

[0002] Environmentally friendly industrial wastewater purification treatment equipment is used to treat wastewater generated in the industrial production process to meet the discharge standard or reuse standard. It adopts physical, chemical, biological and other treatment methods to remove pollutants in the wastewater, such as heavy metals, organic matter, suspended solids and nutrients.

[0003] The existing 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, which contains high concentrations of electroplated metal ions. In the chrome 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 protection purification of industrial wastewater, physical precipitation methods are now mostly 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 to form sludge. A large amount of metallic chromium impurities contained in the sludge are also mixed in the sludge as the sludge is concentrated, making it difficult to recover, thereby causing a waste of resources.

[0004] Therefore, we proposed an environmentally friendly industrial wastewater purification and treatment device to solve the problems raised above. Summary of the invention

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

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

[0007] Preferably, the bottom end of the stirring tank is fixedly connected to the top of the support frame, a delivery pump is arranged 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 movably passes through the interior of the stirring tank to the bottom wall.

[0008] 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.

[0009] Preferably, the top end of the output tube is fixedly penetrated into 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 movably penetrates the interior of the mixing barrel to the bottom wall.

[0010] Preferably, a pH detector is provided on the inner wall of the mixing barrel, a mounting frame is fixed to the top of the mixing barrel near one side edge, and two storage boxes are fixed to the inner top surface of the mounting frame.

[0011] 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. The outer surfaces of the acid pipe and the ammonia pipe are both provided with a first solenoid valve, and one end of the ammonia pipe is fixedly penetrated into the interior of the acid pipe.

[0012] Preferably, the bottom end of the acid tube is fixedly penetrated into the interior of the mixing barrel, and the outer surface of the mixing barrel is fixedly connected with a discharge pipe 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 arranged at the top of the support frame near the front surface, the collecting assembly comprises a collecting box, the collecting box is arranged inside the support frame, and a pressure sensor is arranged on the outer surface of the collecting box.

[0014] Preferably, an air pump is arranged on the top of the collecting box, the output end of the air pump is fixedly connected to a negative pressure pipe, and the bottom end of the negative pressure pipe is fixedly penetrated into the interior of the collecting box.

[0015] Preferably, the outer surface of the collecting 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: 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 uses precipitation to purify and cannot recover the metallic chromium in the wastewater, causing waste of resources.

[0017] 2. When it is necessary to use environmentally friendly means to purify industrial wastewater, the wastewater is first transported to a mixing barrel and stirred, and hydrochloric acid and ammonia water are respectively transported to the mixing barrel, so that chromium is precipitated in the form of chromium hydroxide, thereby realizing the separation of chromium ions in industrial wastewater. Since the entire device is sealed, environmentally friendly treatment of wastewater is guaranteed.

[0018] 3. When the chromium extraction is completed, first start the air pump to make the negative pressure in the collection box reach the required value, and open the second solenoid valve, 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

[0019] Figure 1 It is a front perspective view of an environmentally friendly industrial wastewater purification and treatment device of the present invention; Figure 2 It is a partial three-dimensional diagram of a sedimentation component of an environmentally friendly industrial wastewater purification and treatment device of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 A partially cutaway perspective view of a mixing barrel of an environmentally friendly industrial wastewater purification and treatment device of the present invention; Figure 5 It is a partial three-dimensional diagram of an extraction component of an environmentally friendly industrial wastewater purification and treatment device of the present invention; Figure 6 A partially cutaway perspective view of a stirring tank of an environmentally friendly industrial wastewater purification and treatment device of the present invention; Figure 7 It is a cross-sectional perspective view of the stirring tank part of an environmentally friendly industrial wastewater purification and treatment device of the present invention from another angle; Figure 7 A three-dimensional diagram of an environmentally friendly industrial wastewater purification and treatment device of the present invention; Figure 8 It is a partial stereoscopic diagram of the collecting component of an environmentally friendly industrial wastewater purification and treatment device of the present invention.

[0020] In the figure: 1. Support frame; 2. Sedimentation assembly; 201. Stirring barrel; 202. Water pump; 203. Drainage pipe; 204. Output pipe; 205. Servo motor; 206. Stirring rod; 207. pH detector; 208. Mounting frame; 209. Storage box; 210. Acid pipe; 211. Ammonia pipe; 212. First solenoid valve; 3. Discharge pipe; 4. Extraction assembly; 401. Stirring tank; 402. Delivery pump; 403, connecting pipe; 404, conveying pipe; 405, driving motor; 406, stirring rod; 407, sealing cover; 408, collecting bin; 409, multi-stage electric telescopic rod; 410, sealing plate; 411, annular groove; 412, leak barrel; 5, collecting assembly; 501, collecting box; 502, air pump; 503, negative pressure pipe; 504, pressure sensor; 505, recovery pipe; 506, second solenoid valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-8 The present invention provides a technical solution: an environmentally friendly industrial wastewater purification and treatment device, wherein 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 penetrated into 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 movably penetrates the interior of the stirring barrel 201 to the bottom wall, and the inner wall of the stirring barrel 201 A pH detector 207 is provided, and a mounting frame 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 frame 208, wherein 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 water pipe 211, and a first solenoid valve 212 is provided on the outer surfaces of the acid pipe 210 and the ammonia water pipe 211, one end of the ammonia water pipe 211 is fixedly penetrated into the interior of the acid pipe 210, and the bottom end of the acid pipe 210 is fixedly penetrated into 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, and one end of the discharge pipe 3 is fixedly connected to one end of the connecting pipe 403.

[0023] 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 connected to 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 external wastewater device with the drainage pipe 203. 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 disposed on the surface of the acid tube 210 is opened, so that the hydrochloric acid in the storage box 209 connected thereto is transported to the inside of the mixing barrel 201 through the acid tube 210, and the pH value of the wastewater is detected by the pH detector 207, wherein the pH detector 207 is an instrument for measuring the pH value of a liquid, and has the characteristic of selectively permeating 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, and 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 converted into a pH value after amplification, linearization and temperature compensation 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 open 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 box 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, so that the chromium is precipitated in the form of chromium hydroxide. In order to further accelerate the precipitation of chromium, the servo motor 205 is continuously started to continuously stir the wastewater to 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.

[0024] like Figure 1 and Figure 5-Figure 7As shown, an environmentally friendly industrial wastewater purification treatment device includes a support frame 1, a sedimentation component 2 is arranged near one side edge of the top of the support frame 1, an extraction component 4 is arranged near the other side edge of the top of the support frame 1, 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, a stirring rod 406 is fixedly connected to the output shaft of the driving motor 405, a sealing cover 407 is arranged on the inner wall of the stirring tank 401, and a collecting bin 408 is fixedly connected to the stirring tank 401, and a plurality of multi-stage electric telescopic rods 409 are arranged on the inner bottom surface of the collecting bin 408, and a plurality of multi-stage electric telescopic rods 409 are arranged on the inner bottom surface of the collecting bin 408. A sealing plate 410 is fixed between the top ends of the electric telescopic rod 409, a leak barrel 412 is fixed to the inner top surface of the stirring tank 401, an annular groove 411 is arranged between the outer surface of the leak barrel 412 and the inner wall of the stirring tank 401, the bottom end of the stirring tank 401 is fixedly connected to the top of the support frame 1, a delivery pump 402 is arranged on the top of the support frame 1, an input end of the delivery pump 402 is fixedly connected to a connecting pipe 403, an 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 movably passes through the interior of the stirring tank 401 to the bottom wall.

[0025] 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, wherein the leakage hole barrel 412 is used to prevent the resin particles from entering the stirring tank 401, and the delivery pump 402 is started to drive the connecting pipe 403 to extract wastewater into the stirring barrel 201, and the wastewater enters the stirring tank 401 through the delivery pipe 404, and 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 adsorbent 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 firstly 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 collecting bin 408, thereby making the bottom of the annular groove 411 communicate with the interior of the collecting bin 408, so that the adsorbent resin falls into the interior of the collecting bin 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 collecting bin 408, so as to output the resin adsorbing chromium, realize the extraction and storage of chromium in the wastewater, prevent the industrial wastewater from containing a large amount of metallic chromium which pollutes the environment and causes waste of resources, and solves the problem that the existing technology of chromium-containing industrial wastewater is mostly purified by sedimentation and the metallic chromium in the wastewater cannot be recovered, causing waste of resources.

[0026] 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 with 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 arranged near the front surface on the top of the support frame 1, and the collecting component 5 includes a collecting box 501, which is arranged inside the support frame 1, and a pressure sensor 504 is arranged on the outer surface of the collecting box 501. An air pump 502 is arranged on the top of the collecting box 501, and the output end of the air pump 502 is fixedly connected with 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 with a recovery pipe 505, and a second solenoid valve 506 is arranged 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.

[0027] In this embodiment, after 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 air 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.

[0028] The use method and working principle of the device: The chrome plating process is a process of plating a layer of metal film on the metal surface using the principle of electrolysis. A large amount of waste water will be generated during the cleaning process after electroplating. 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 first solenoid valve 212 set on the surface of the acid pipe 210 is opened, so that the first solenoid valve 212 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 solenoid 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 solenoid 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 continuously started to continuously stir the wastewater to improve the precipitation efficiency of chromium. When the chromium in the wastewater is separated from the chromium hydroxide, the servo motor 205 is continuously started to continuously stir the wastewater to improve the precipitation efficiency of chromium. After the separation of the wastewater from the wastewater is completed, the sealing cover 407 is first separated from the stirring tank 401, a certain amount of resin is poured into the annular groove 411, and the delivery pump 402 is started to drive the connecting pipe 403 to extract wastewater into the stirring barrel 201. The wastewater enters the stirring tank 401 through the delivery pipe 404, and then the driving motor 405 is started to drive the stirring rod 406 to rotate, so as to stir 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, the second solenoid valve 506 is opened, so that the waste water in the mixing tank 401 is transported to the inside of the collection box 501 through the recovery pipe 505 under the action of the pressure difference, 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 bin 408, thereby connecting the bottom of the annular groove 411 with the inside of the collection bin 408, so that the adsorption resin falls into the inside of the collection bin 408 under the action of its own gravity, and then the like can be opened. Figure 6 A sealing plug is shown disposed at the bottom of the collection bin 408 to output the chromium-absorbed resin.

[0029] 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 art, and its working principle is a well-known technology. The model is selected according to the 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.

[0030] 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 protection scope of the present invention.

Claims

1. An environmentally friendly industrial wastewater purification treatment device, comprising a support frame (1), a sedimentation component (2) being arranged near one side edge of the top of the support frame (1), characterized in that: An extraction component (4) is arranged near the other side edge of the top of the support frame (1), and the extraction component (4) comprises a stirring tank (401). A driving motor (405) is fixedly mounted near the center of the top of the stirring tank (401) by screws, and a stirring rod (406) is fixedly connected to the output shaft of the driving motor (405). A sealing cover (407) is arranged on the inner wall of the stirring tank (401). A collecting bin (408) is fixedly connected to the stirring tank (401). A plurality of multi-stage electric telescopic rods (409) are arranged on the inner bottom surface of the collecting bin (408), and a sealing plate (410) is fixed between the top ends of the plurality of multi-stage electric telescopic rods (409). A leaking hole barrel (412) is fixed on the inner top surface of the stirring tank (401), and an annular groove (411) is arranged between the outer surface of the leaking hole barrel (412) and the inner wall of the stirring tank (401).

2. The environmentally friendly industrial wastewater purification treatment device according to claim 1 is characterized in that: The bottom end of the stirring tank (401) is fixedly connected to the top of the support frame (1); a delivery pump (402) is arranged on the top of the support frame (1); an input end of the delivery pump (402) is fixedly connected to a connecting pipe (403); an 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 movably passed through the interior of the stirring tank (401) to the bottom wall.

3. The environmentally friendly industrial wastewater purification treatment device according to claim 2 is characterized in that: The sedimentation component (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 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), and the output end of the water pump (202) is fixedly connected to an output pipe (204).

4. The environmentally friendly industrial wastewater purification treatment device according to claim 3 is characterized in that: The top end of the output tube (204) is fixedly inserted into the interior of the mixing barrel (201); a servo motor (205) is fixedly mounted on the top of the mixing barrel (201) by means of screws; a stirring rod (206) is fixedly mounted on the output end of the servo motor (205); and the bottom end of the stirring rod (206) is movably inserted into the interior of the mixing barrel (201) to the bottom wall.

5. The environmentally friendly industrial wastewater purification treatment device according to claim 4 is characterized in that: A pH detector (207) is arranged on the inner wall of the mixing barrel (201), a mounting frame (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 frame (208).

6. The environmentally friendly industrial wastewater purification treatment device according to claim 5 is characterized by: 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 water pipe (211). A first solenoid valve (212) is provided on the outer surfaces of the acid pipe (210) and the ammonia water pipe (211), and one end of the ammonia water pipe (211) is fixedly passed through the interior of the acid pipe (210).

7. The environmentally friendly industrial wastewater purification treatment device according to claim 6 is characterized by: The bottom end of the acid tube (210) is fixedly inserted into 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).

8. The environmentally friendly industrial wastewater purification treatment device according to claim 7 is characterized in that: A collecting assembly (5) is arranged at the top of the support frame (1) near the front surface, the collecting assembly (5) comprising a collecting box (501), the collecting box (501) being arranged inside the support frame (1), and a pressure sensor (504) being arranged on the outer surface of the collecting box (501).

9. The environmentally friendly industrial wastewater purification treatment device according to claim 8 is characterized in that: An air pump (502) is arranged on the top of the collection box (501); the output end of the air pump (502) is fixedly connected to a negative pressure tube (503); the bottom end of the negative pressure tube (503) is fixedly penetrated into the interior of the collection box (501).

10. The environmentally friendly industrial wastewater purification treatment device according to claim 9 is 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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