Integrated PCB copper-containing wastewater treatment equipment

Abstract

The invention discloses integrated PCB copper-containing wastewater treatment equipment, and relates to the technical field of wastewater treatment, the integrated PCB copper-containing wastewater treatment equipment comprises a mounting bottom plate, the top of the mounting bottom plate is provided with a stirring assembly, and the outer surface of one side of the stirring assembly is provided with a reaction assembly. According to the integrated PCB copper-containing wastewater treatment equipment, sediments in the stirring bin enter the bottom of the stirring bin while copper-containing wastewater is purified, when a large amount of sludge is generated, a leak plate and a movable frame are overlapped, a valve on the surface of a sewage outlet pipe is opened, and the sludge is discharged; the two valves corresponding to one filtering tank are closed, the two valves corresponding to the other filtering tank are opened, dirt in the filtering tank is conveyed outwards, and sludge detained at the bottom of the purification tank enters the U-shaped conveying shell along the sludge outlet pipe under the action of the sludge discharging valve. Therefore, the purpose that the integrated PCB copper-containing wastewater treatment equipment purifies the copper-containing wastewater and discharges the sludge at the same time is achieved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to an integrated PCB copper-containing wastewater treatment device. Background Technology

[0002] Integrated PCB copper-containing wastewater treatment equipment is an integrated and modular wastewater treatment device specifically designed for copper-containing wastewater generated during the production of printed circuit boards. Through an integrated process of physicochemical pretreatment + core copper recovery + deep purification, it achieves the standard discharge of copper-containing wastewater and the recovery of copper resources. It has the advantages of small footprint, high degree of automation, and adaptability to the wastewater characteristics of the PCB industry, and is one of the core equipment for environmental management in PCB factories.

[0003] Existing integrated PCB copper-containing wastewater treatment equipment generates a large amount of copper-based precipitates, complexation reaction residues, chemical flocculants, and a small amount of suspended solids during the treatment of copper-containing wastewater. In order to avoid sludge accumulation in the integrated PCB copper-containing wastewater treatment equipment and negatively impact the treatment process, water quality compliance, and equipment safety, it is necessary to clean the sludge in the integrated treatment equipment regularly. Traditional integrated PCB copper-containing wastewater treatment equipment requires shutdown 1-2 times a month to clean the sludge, with each shutdown lasting 4-8 hours, thereby reducing the working efficiency of the integrated PCB copper-containing wastewater treatment equipment.

[0004] Therefore, we propose an integrated PCB copper-containing wastewater treatment device to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated PCB copper-containing wastewater treatment device to solve the problem mentioned in the background art that the integrated PCB copper-containing wastewater treatment device needs to be shut down regularly for cleaning, which reduces the efficiency of wastewater treatment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated PCB copper-containing wastewater treatment device, comprising a mounting base plate, a stirring assembly disposed on the top of the mounting base plate, a reaction assembly disposed on one outer surface of the stirring assembly, and a purification assembly disposed on the other outer surface of the stirring assembly. The purification assembly includes two filter tanks, a purification tank, and multiple inclined tubes. An outlet pipe is fixedly connected between the outer surfaces of the two filter tanks. Filter plates are fixedly connected to the inner walls of both filter tanks. Slurry outlet pipes are fixedly connected to the bottoms of both filter tanks. Flow pipes are fixedly connected to the tops of both filter tanks. The reaction assembly includes a reaction tank, with two storage tanks disposed on the top of the reaction tank. An arc-shaped inner wall is fixed to the inner wall of the reaction tank, and a scraper is slidably fitted onto the outer surface of the arc-shaped inner wall. After the stirred copper-containing wastewater enters the reaction tank, the capture agent and flocculant in the two storage tanks are added to the reaction tank to react with the copper-containing wastewater, generating a poorly soluble precipitate. The dirt retained on the surface of the arc-shaped inner wall is removed by the moving scraper, and then transported to the filter tank for filtration.

[0007] Preferably, the purification assembly further includes a delivery pump, pressure sensors are installed on the inner top surfaces of both filter tanks, slurry outlet pipes are fixedly connected to the bottom of both filter tanks, first solenoid valves are installed on the outer surfaces of both slurry outlet pipes, a purification pipe is fixedly connected between the outer surfaces of the two flow pipes, a sludge outlet pipe is fixedly connected to the bottom of the purification tank, a sludge discharge valve is installed on the outer surface of the sludge outlet pipe, and valves are installed on the outer surfaces of both flow pipes.

[0008] Preferably, the reaction assembly further includes two output pipes, each with a second solenoid valve on its outer surface. A feed pipe is fixedly connected to the top of the reaction vessel, and a third solenoid valve is provided on the outer surface of the feed pipe. A hydraulic rod is provided on the inner top surface of the reaction vessel, and a lifting rod is fixedly connected to the bottom of the hydraulic rod via an auxiliary rod. An inlet pipe is fixedly connected to the bottom of the reaction vessel.

[0009] Preferably, the stirring assembly includes a stirring chamber, the top of which is fixedly connected to a liquid inlet pipe, a servo motor is fixedly mounted on the outer surface of the stirring chamber by screws, the output end of the servo motor is fixedly connected to a stirring rod, and the bottom of the stirring chamber is fixedly connected to a sludge outlet pipe, the outer surface of which is provided with a valve.

[0010] Preferably, a perforated plate is fixed between the relative inner walls of the mixing chamber, a limiting rod is fixedly connected between the relative inner walls of the perforated plate, a movable frame is slidably sleeved on the outer surface of the limiting rod, a forward and reverse motor is provided on the inner wall of the perforated plate, and a threaded rod is fixedly connected to the output end of the forward and reverse motor.

[0011] Preferably, the reflux assembly includes a U-shaped conveying housing, a drive motor is fixedly mounted on the outer surface of the U-shaped conveying housing by screws, a spiral blade is fixedly connected to the output end of the drive motor, a squeezing mechanism is provided on the top of the mounting base plate, a liquid outlet pipe is fixedly connected to the liquid outlet end of the squeezing mechanism, a water pump is fixedly mounted on the top of the squeezing mechanism by an auxiliary block, and a reflux pipe is fixedly connected to the output end of the water pump.

[0012] Preferably, the input end of the conveying pump is fixedly connected to one end of the inlet pipe, the output end of the conveying pump is fixedly connected to one end of the outlet pipe, two valves are provided on the outer surface of the outlet pipe, one end of the purification pipe is fixedly inserted into the interior of the purification tank, multiple inclined pipes are all arranged inside the purification tank, and the bottom end of the sludge outlet pipe is fixedly inserted into the interior of the U-shaped conveying shell.

[0013] Preferably, the bottom of the reaction vessel is fixedly connected to the top of the mounting base plate via an auxiliary frame, the top ends of the two output pipes are fixedly inserted into the interior of the two storage tanks, the bottom ends of the two output pipes are fixedly inserted into the interior of the reaction vessel, and one end of the feed pipe is fixedly inserted into the interior of the mixing chamber.

[0014] Preferably, the outer surface of the mixing chamber is fixedly connected to the top of the mounting base plate via a pressure-resistant frame, both ends of the mixing rod extend movably to the outside of the mixing chamber, the outer surface of the perforated plate slides against the inner wall of the mixing chamber, one end of the threaded rod is movably embedded in the inner wall of the perforated plate, the outer surface of the threaded rod is threadedly connected to the inner wall of the movable frame, and the bottom end of the sewage outlet pipe is fixedly extended into the interior of the U-shaped conveying housing.

[0015] Preferably, the bottom of the U-shaped conveying housing is fixedly connected to the top of the mounting base plate, both ends of the spiral blades extend movably through to the outside of the U-shaped conveying housing, the top end of the liquid outlet pipe is fixedly connected to the liquid inlet of the water pump, and the top end of the return pipe extends fixedly through to the inside of the mixing chamber.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. While purifying copper-containing wastewater, sediment in the mixing chamber enters the bottom of the mixing chamber. When there is a lot of sludge, the perforated plate is aligned with the moving frame, and the valve on the surface of the sewage outlet pipe is opened to discharge the sludge. When there is a lot of dirt in one of the filter tanks, the two valves corresponding to that filter tank are closed, and the two valves corresponding to the other filter tank are opened to transport the dirt in that filter tank outward. The sludge that remains at the bottom of the purification tank will enter the interior of the U-shaped conveying shell along the sludge outlet pipe under the action of the sludge discharge valve. This achieves the purpose of purifying copper-containing wastewater and discharging sludge simultaneously in the integrated PCB copper-containing wastewater treatment equipment, solving the problem that the existing integrated PCB copper-containing wastewater treatment equipment needs to be shut down regularly for cleaning, which reduces the efficiency of wastewater treatment.

[0017] 2. When copper-containing wastewater needs to be treated, the wastewater is first transported to the mixing chamber and stirred evenly, then transported to the reaction tank for flocculation and sedimentation, and finally enters the filter tank. The dirt will fall to the bottom of the filter tank under its own gravity. The filtered water flows into the purification tank through the flow pipe and is then distributed into multiple inclined tubes. The settled sludge slides down the inner wall of multiple inclined tubes to the bottom of the purification tank. Through multiple purification processes, the integrated PCB copper-containing wastewater treatment equipment achieves the purification of copper-containing wastewater, further improving the purification efficiency of copper-containing wastewater.

[0018] 3. In the integrated PCB copper-containing wastewater treatment equipment, the sludge in each treatment tank is collected and enters the U-shaped conveyor shell through pipelines. It is then driven by spiral blades into the extrusion mechanism to compact and output the sludge. The water squeezed out is then pumped back to the mixing chamber for further purification. This achieves automatic sludge dewatering while effectively preventing wastewater from entering the environment and affecting it. Attached Figure Description

[0019] Figure 1 This is a front perspective view of an integrated PCB copper-containing wastewater treatment device according to the present invention; Figure 2 This is a side perspective view of an integrated PCB copper-containing wastewater treatment device according to the present invention. Figure 3 This is a sectional perspective view of the stirring assembly of an integrated PCB copper-containing wastewater treatment device according to the present invention. Figure 4 This is a three-dimensional view of the perforated plate portion of an integrated PCB copper-containing wastewater treatment device according to the present invention. Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a perspective view of the reaction component of an integrated PCB copper-containing wastewater treatment device according to the present invention. Figure 7 For the present invention Figure 6 Enlarged view at point B in the middle; Figure 8 This is a perspective view of the purification component of an integrated PCB copper-containing wastewater treatment device according to the present invention. Figure 9 This is a perspective view of the inclined tube portion of an integrated PCB copper-containing wastewater treatment device according to the present invention; Figure 10 This is a sectional perspective view of the filter tank portion of an integrated PCB copper-containing wastewater treatment device according to the present invention; Figure 11 This is a sectional perspective view of the reflux component of an integrated PCB copper-containing wastewater treatment device according to the present invention.

[0020] In the picture: 1. Mounting base plate; 2. Mixing assembly; 201. Mixing chamber; 202. Liquid inlet pipe; 203. Servo motor; 204. Mixing rod; 205. Perforated plate; 206. Moving frame; 207. Limiting rod; 208. Forward and reverse motor; 209. Threaded rod; 210. Waste outlet pipe; 3. Reaction assembly; 301. Reaction tank; 302. Storage tank; 303. Output pipe; 304. Second solenoid valve; 305. Feed pipe; 306. Third solenoid valve; 307. Arc-shaped inner wall; 308. Hydraulic rod; 309. Lifting rod; 310. Scraper frame; 3 11. Inlet pipe; 4. Purification assembly; 401. Transfer pump; 402. Outlet pipe; 403. Filter tank; 404. Filter plate; 405. Pressure sensor; 406. Flow pipe; 407. Slurry outlet pipe; 408. First solenoid valve; 409. Purification pipe; 410. Purification tank; 411. Sludge outlet pipe; 412. Sludge discharge valve; 413. Inclined pipe; 5. Return assembly; 501. U-shaped conveyor housing; 502. Spiral blades; 503. Drive motor; 504. Extrusion mechanism; 505. Liquid outlet pipe; 506. Water pump; 507. Return pipe. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-11This invention provides a technical solution: an integrated PCB copper-containing wastewater treatment device, including a mounting base plate 1, a stirring assembly 2 disposed on the top of the mounting base plate 1, a reaction assembly 3 disposed on one outer surface of the stirring assembly 2, and a purification assembly 4 disposed on the other outer surface of the stirring assembly 2. The purification assembly 4 includes two filter tanks 403, a purification tank 410, and multiple inclined tubes 413. An outlet pipe 402 is fixedly connected between the outer surfaces of the two filter tanks 403, and filter plates 404 are fixedly connected to the inner walls of both filter tanks 403. The bottom of each of the two filter tanks 403 is fixedly connected to a slurry outlet pipe 407, and the top of each filter tank 403 is fixedly connected to a flow pipe 406. The reaction assembly 3 includes a reaction tank 301, and two storage tanks 302 are set on the top of the reaction tank 301. The inner wall of the reaction tank 301 is fixed with an arc-shaped inner wall 307, and a scraper 310 is slidably fitted on the outer surface of the arc-shaped inner wall 307. After the copper-containing wastewater is stirred and enters the reaction tank 301, the capture agent and flocculant in the two storage tanks 302 are added to the reaction tank 301 to react with the copper-containing wastewater and generate a poorly soluble precipitate. The sediment is collected and the dirt remaining on the surface of the arc-shaped inner wall 307 is removed by the moving scraper 310, and then transported to the filter tank 403 for filtration. The purification component 4 also includes a transfer pump 401. Pressure sensors 405 are installed on the top surface of the inside of both filter tanks 403. The bottom of both filter tanks 403 is fixedly connected to the slurry outlet pipe 407. The outer surface of both slurry outlet pipes 407 is equipped with a first solenoid valve 408. A purification pipe 409 is fixedly connected between the outer surfaces of the two flow pipes 406. The bottom of the purification tank 410 is fixedly connected to the mud outlet pipe. 411, a sludge discharge valve 412 is provided on the outer surface of the sludge discharge pipe 411, and valves are provided on the outer surfaces of the two flow pipes 406. The input end of the conveying pump 401 is fixedly connected to one end of the inlet pipe 311, and the output end of the conveying pump 401 is fixedly connected to one end of the outlet pipe 402. Two valves are provided on the outer surface of the outlet pipe 402. One end of the purification pipe 409 is fixedly inserted into the interior of the purification tank 410. Multiple inclined pipes 413 are provided inside the purification tank 410. The bottom end of the sludge discharge pipe 411 is fixedly inserted into the interior of the U-shaped conveying housing 501.

[0023] like Figures 1-11As shown, in this embodiment, when copper-containing wastewater needs to be treated, the external wastewater pipe and the inlet pipe 202 are first fixedly connected by a flange, allowing the wastewater to enter the mixing chamber 201 through the inlet pipe 202. Once a fixed amount of wastewater has entered the mixing chamber 201, the servo motor 203 is started to drive the stirring rod 204 to rotate, mixing the wastewater evenly and eliminating instantaneous fluctuations in water volume, copper ion concentration, and pH value. After the wastewater is evenly mixed, the feed pipe 305 is opened, allowing the wastewater in the mixing chamber 201 to enter the reaction tank 301 through the feed pipe 305. To convert free copper ions into insoluble precipitates and prepare for solid-liquid separation, one of the second solenoid valves 304 can be opened through the external control system, allowing sodium sulfide stored in one of the storage tanks 302 to enter the reaction tank 301 through its corresponding output pipe 303 to react chemically with the copper-containing wastewater. The formula is: S After the copper ions react with sodium sulfide, an external control system opens a second solenoid valve 304, allowing flocculant in another storage tank 302 to enter the reaction tank 301 through the output pipe 303. This causes the fine precipitates to form micro-flocs. Then, the delivery pump 401 is started, driving the inlet pipe 311 to bring the precipitates, wastewater, and micro-flocs into the outlet pipe 402. The external control system then opens a valve on one side of the outlet pipe 402, allowing the copper-containing wastewater to enter one of the filter tanks 403. During the process of wastewater entering the filter tank 403 from the reaction tank 301, a hydraulic rod 308 is activated, extending it and causing the lifting rod 309 to move downwards. This, in turn, causes the scraper 310 to move downwards, scraping off the dirt accumulated on the surface of the arc-shaped inner wall 307. The dirt then falls to the bottom of the reaction tank 301 under its own gravity, enters the inlet pipe 311, and finally enters the filter tank 403. Additionally, if... Figure 10 As shown, the outlet of the outlet pipe 402 corresponds directly to the filter plate 404. This is to allow the water sprayed from the outlet pipe 402 to clean the dirt accumulated on the surface of the filter plate 404. After the wastewater enters the filter tank 403, the dirt in the wastewater will fall to the bottom of the filter tank 403 under its own gravity. For example... Figure 10 As shown, the bottom of the filter tank 403 is a downward-sloping surface, designed to facilitate the downward movement of sediment. As the water level in the filter tank 403 gradually increases, the clear water retained inside will pass through the filter plate 404 and enter the flow pipe 406. For example... Figure 10As shown, the surface of the filter plate 404 is uniformly provided with multiple filter holes. The purpose of this is to prevent flocculants and sediments in the wastewater from passing through the filter plate 404. Then, the valve corresponding to the flow pipe 406 can be opened via an external control system, allowing the filtered water to enter the purification pipe 409 through the flow pipe 406, and finally flow into the purification tank 410, and then be distributed into the multiple inclined pipes 413. For example... Figure 8 As shown, the bottom of the purification tank 410 is a downward-sloping surface. This is to allow the sludge to settle at the bottom and to ensure that the sludge does not adhere to the inner wall of the purification tank 410 under gravity. The multiple inclined tubes 413 all adopt a hexagonal honeycomb structure with an inclination angle of [insert angle here]. When wastewater passes through multiple inclined tubes 413, sludge flocs will rapidly settle on the inner walls of the multiple inclined tubes 413. The settled sludge will slide down the inner walls of the multiple inclined tubes 413 to the bottom of the purification tank 410. The purified water source on the upper layer of the purification tank 410 can be collected through pipes by external collection equipment. Through multiple purification processes, the integrated PCB copper-containing wastewater treatment equipment can purify copper-containing wastewater, further improving the purification efficiency of copper-containing wastewater.

[0024] like Figures 1-11As shown, an integrated PCB copper-containing wastewater treatment device includes a mounting base plate 1. A stirring assembly 2 is installed on the top of the mounting base plate 1. A reaction assembly 3 is installed on one outer surface of the stirring assembly 2, and a purification assembly 4 is installed on the other outer surface of the stirring assembly 2. The purification assembly 4 includes two filter tanks 403, a purification tank 410, and multiple inclined tubes 413. An outlet pipe 402 is fixedly connected between the outer surfaces of the two filter tanks 403. Filter plates 404 are fixedly connected to the inner walls of both filter tanks 403. Slurry outlet pipes 407 are fixedly connected to the bottom of both filter tanks 403, and flow pipes 406 are fixedly connected to the top of both filter tanks 403. The reaction assembly 3 includes a reaction tank 301, and two storage tanks are installed on the top of the reaction tank 301. The inner wall of the reaction tank 301 is fixed with an arc-shaped inner wall 307. A scraper 310 is slidably fitted on the outer surface of the arc-shaped inner wall 307. After the copper-containing wastewater is stirred and enters the reaction tank 301, the capture agent and flocculant in the two storage tanks 302 are added to the reaction tank 301 to react with the copper-containing wastewater, generating a poorly soluble precipitate. The dirt remaining on the surface of the arc-shaped inner wall 307 is removed by moving the scraper 310, and then transported to the filter tank 403 for filtration. The purification component 4 also includes a transfer pump 401. Pressure sensors 405 are installed on the top surface of the interior of both filter tanks 403. The bottom of both filter tanks 403 is fixedly connected to a slurry outlet pipe 407. A first solenoid valve 408 is installed on the outer surface of both slurry outlet pipes 407. A purification pipe 409 is fixedly connected between the outer surfaces of two flow pipes 406. A sludge discharge pipe 411 is fixedly connected to the bottom of the purification tank 410. A sludge discharge valve 412 is installed on the outer surface of the sludge discharge pipe 411. Valves are installed on the outer surfaces of both flow pipes 406. The reaction assembly 3 also includes two output pipes 303. A second solenoid valve 304 is installed on the outer surface of both output pipes 303. A feed pipe 305 is fixedly connected to the top of the reaction tank 301. A third solenoid valve 306 is installed on the outer surface of the feed pipe 305. A hydraulic rod 308 is installed on the inner top surface of the reaction tank 301. A lifting rod 309 is fixedly connected to the bottom of the hydraulic rod 308 via an auxiliary rod. An inlet pipe 311 is fixedly connected to the bottom of the reaction tank 301. The stirring assembly 2 includes... A mixing chamber 201 has an inlet pipe 202 fixedly connected to its top. A servo motor 203 is fixedly mounted on the outer surface of the mixing chamber 201 by screws. A stirring rod 204 is fixedly connected to the output end of the servo motor 203. A sludge outlet pipe 210 is fixedly connected to the bottom of the mixing chamber 201. A valve is installed on the outer surface of the sludge outlet pipe 210. A perforated plate 205 is fixed between the relative inner walls of the mixing chamber 201. A limit rod 207 is fixedly connected between the relative inner walls of the perforated plate 205. A movable frame 206 is slidably sleeved on the outer surface of the limit rod 207. A forward and reverse motor 208 is installed on the inner wall of the perforated plate 205. A threaded rod 209 is fixedly connected to the output end of the forward and reverse motor 208. The reflux assembly 5 includes a U-shaped conveying housing 501.A drive motor 503 is fixedly mounted on the outer surface of the U-shaped conveying housing 501 by screws. A spiral blade 502 is fixedly connected to the output end of the drive motor 503. A squeezing mechanism 504 is installed on the top of the mounting base plate 1. An outlet pipe 505 is fixedly connected to the outlet end of the squeezing mechanism 504. A water pump 506 is fixedly mounted on the top of the squeezing mechanism 504 via an auxiliary block. A return pipe 507 is fixedly connected to the output end of the water pump 506. The input end of the conveying pump 401 is fixedly connected to one end of the inlet pipe 311, and the output end of the conveying pump 401 is fixedly connected to one end of the outlet pipe 402. Two valves are installed on the outer surface of the outlet pipe 402. One end of the purification pipe 409 is fixedly inserted into the interior of the purification tank 410. Multiple inclined pipes 413 are installed inside the purification tank 410. The bottom end of the sludge outlet pipe 411 is fixedly inserted into the interior of the U-shaped conveying housing 501. The bottom of the reaction tank 301 is fixedly connected to the top of the mounting base plate 1 via an auxiliary frame. The top ends of the two outlet pipes 303 are respectively fixed... The two storage tanks 302 are fixedly connected to each other, and the bottom ends of the two output pipes 303 are fixedly connected to each other, extending into the interior of the reaction tank 301. One end of the feed pipe 305 is fixedly connected to the interior of the mixing chamber 201. The outer surface of the mixing chamber 201 is fixedly connected to the top of the mounting base plate 1 through a pressure-resistant frame. Both ends of the stirring rod 204 extend movably to the outside of the mixing chamber 201. The outer surface of the perforated plate 205 slides against the inner wall of the mixing chamber 201. One end of the threaded rod 209 is movably embedded in the perforated plate. The inner wall of 205 and the outer surface of the threaded rod 209 are threadedly connected to the inner wall of the movable frame 206. The bottom end of the sewage outlet pipe 210 is fixedly inserted into the interior of the U-shaped conveying housing 501. The bottom of the U-shaped conveying housing 501 is fixedly connected to the top of the mounting base plate 1. Both ends of the spiral blade 502 are movably inserted into the exterior of the U-shaped conveying housing 501. The top end of the liquid outlet pipe 505 is fixedly connected to the liquid inlet end of the water pump 506. The top end of the return pipe 507 is fixedly inserted into the interior of the mixing chamber 201.

[0025] In this embodiment, while purifying copper-containing wastewater, when the wastewater enters the mixing chamber 201, the sediment in the wastewater, under its own gravity, flows along the gaps in the perforated plate 205 into the bottom of the mixing chamber 201. For example... Figure 2As shown, the bottom of the mixing chamber 201 is inclined downwards to facilitate the downward flow of dirt within the mixing chamber 201. When there is a large amount of dirt in the mixing chamber 201, the external control system can activate the forward and reverse motor 208, which drives the threaded rod 209 to rotate. This, in turn, drives the movable frame 206, which is located at the bottom of the perforated plate 205 and overlaps with the perforated plate 205 in its top view, to move along the bottom of the perforated plate 205 until the movable frame 206 completely fills the gap between two adjacent strip plates in the perforated plate 205. The top of the movable frame 206 is made of rubber material with a sealing function. When the movable frame 206 and the perforated plate 205 form a complete surface, the bottom of the mixing chamber 201 is sealed, thus achieving complete isolation between the mixing part and the sewage discharge part of the mixing chamber 201. At this time, it can be opened as follows. Figure 3 The valves shown on the surface of the discharge pipe 210 allow the dirt retained at the bottom of the mixing chamber 201 to flow downwards along the discharge pipe 210 into the U-shaped conveying housing 501 under its own gravity. Once all the dirt in the mixing chamber 201 has been discharged, the forward and reverse motors 208 can be restarted to reset the moving frame 206, allowing for the collection of dirt retained in the mixing chamber 201 again. This process does not affect the normal operation of the copper-containing wastewater treatment equipment. Furthermore, when the pressure sensor 405 in one of the filter tanks 403 detects excessive pressure, indicating a high level of dirt in that filter tank, the two valves corresponding to that filter tank 403 can be closed, and the two valves corresponding to the other filter tank 403 can be opened. A valve is opened, allowing wastewater from reaction tank 301 to enter another filter tank 403. Then, the first solenoid valve 408 corresponding to the filter tank 403 with more sludge is opened, allowing the sludge in the filter tank 403 to enter the U-shaped conveying housing 501 under its own gravity along the corresponding slurry outlet pipe 407. The sludge retained at the bottom of purification tank 410 will enter the U-shaped conveying housing 501 along the sludge outlet pipe 411 under the action of sludge discharge valve 412. The sludge discharge valve 412 is a power-driven valve that opens and closes, using gravity to discharge the copper-containing sludge from purification tank 410. The sludge discharge valve 412 is closed by default, with the valve core tightly fitted to the valve seat, and the copper-containing sludge in purification tank 410 continues to accumulate, forming a sludge layer inside purification tank 410. The supernatant layer has a layered structure. When the sludge level reaches a set threshold, the PLC sends a signal to the electric actuator of the sludge discharge valve 412, opening the valve and discharging the sludge. When the sludge level drops to a set lower limit, the PLC sends a closing signal, and the electric actuator drives the valve core to reset and seal, stopping the sludge discharge and preventing clean water from being discharged with the sludge. The discharged sludge enters the U-shaped conveying housing 501 along the sludge outlet pipe 411. The drive motor 503 is started, driving the spiral blades 502 to rotate, thus conveying the sludge input into the U-shaped conveying housing 501 to the squeezing mechanism 504. The squeezing mechanism 504 uses mechanical force to apply pressure, causing the water in the sludge to be separated through the filter cloth, achieving solid-liquid separation. The filter cloth is used to trap sludge particles and allow water to pass through. The sludge flows through a chamber provided by a screw shaft, filter plates, and hydraulic cylinders. The chamber gradually shrinks as the pressure increases. Copper-containing sludge is pumped into the chamber of the extrusion mechanism 504. At this point, the sludge is loose, with water mixed with the sludge particles. The sludge is conveyed forward as the screw shaft rotates, and the chamber space gradually shrinks, resulting in initial compression of the sludge. Some free water seeps out through the gaps between the moving and stationary rings. The screw shaft continues to advance, further compressing the chamber space. Simultaneously, the back pressure ring of the screw shaft creates resistance, subjecting the sludge to even greater extrusion pressure. Under this pressure, the bound water in the sludge is squeezed out, and the water flows out through the gaps between the moving and stationary rings. The sludge particles are retained by the filter media. The dewatered sludge cake is pushed to the outlet as the screw shaft rotates, where it automatically falls off and is discharged. Figure 11 As shown, a sludge discharge port is provided on the outside of the extrusion mechanism 504, which can output the extruded copper-containing sludge and collect it through an external collection device. The water discharged during the extrusion process of the extrusion mechanism 504 can flow out through the liquid outlet pipe 505. At this time, the water pump 506 can be started through the external control system, which drives the water source in the liquid outlet pipe 505 to enter the interior of the mixing chamber 201 through the return pipe 507 for further purification. This achieves the purpose of purifying and discharging sludge from copper-containing wastewater in the integrated PCB copper-containing wastewater treatment equipment, and the wastewater treatment equipment does not need to be shut down throughout the process. This solves the problem that the integrated PCB copper-containing wastewater treatment equipment in the prior art needs to be shut down regularly for cleaning, which reduces the efficiency of wastewater treatment.

[0026] The operating method and working principle of this device are as follows: When copper-containing wastewater needs to be treated, the external wastewater pipe and the inlet pipe 202 are first fixedly connected via a flange, allowing the wastewater to enter the mixing chamber 201 through the inlet pipe 202. Once a measured amount of wastewater has entered the mixing chamber 201, the servo motor 203 is started to drive the stirring rod 204 to rotate, mixing the wastewater evenly and eliminating instantaneous fluctuations in water volume, copper ion concentration, and pH value. After the wastewater is evenly mixed, the feed pipe 305 is opened, allowing the wastewater in the mixing chamber 201 to enter the reaction tank 301 through the feed pipe 305. At this time, one of the second solenoid valves 304 can be opened through the external control system, allowing sodium sulfide stored in one of the storage tanks 302 to enter the reaction tank 301 through its corresponding output pipe 303 to react chemically with the copper-containing wastewater. The formula is: S After the copper ions react with sodium sulfide, an external control system opens a second solenoid valve 304, allowing flocculant from another storage tank 302 to enter the reaction tank 301 through the output pipe 303. This causes the fine precipitates to form micro-flocculations. Then, the delivery pump 401 is started, driving the inlet pipe 311 to bring the precipitates, wastewater, and micro-flocculations into the outlet pipe 402. The external control system then opens a valve on one side of the outlet pipe 402, allowing the copper-containing wastewater to enter one of the filter tanks 403. Furthermore, as the wastewater enters the filter tank 403 from the reaction tank 301, the hydraulic rod 308 is activated, extending it and causing the lifting rod 309 to move downwards. This, in turn, moves the scraper 310 downwards, thus removing the precipitates trapped in the arc. The dirt on the inner wall 307 is scraped off and falls to the bottom of the reaction tank 301 under its own gravity, enters the inlet pipe 311, and finally enters the filter tank 403. After the sewage enters the filter tank 403, the dirt in the sewage falls to the bottom of the filter tank 403 under its own gravity. As the water level in the filter tank 403 increases, the clean water retained inside will pass through the filter plate 404 and enter the flow pipe 406. Then, the valve corresponding to the flow pipe 406 can be opened by the external control system, so that the filtered water enters the purification pipe 409 through the flow pipe 406, and finally flows into the purification tank 410, and is then distributed into the multiple inclined tubes 413. The multiple inclined tubes 413 adopt a hexagonal honeycomb structure with an inclination angle of . When wastewater passes through multiple inclined tubes 413, sludge flocs rapidly settle on the inner walls of the tubes 413. The settled sludge slides down the inner walls of the tubes 413 to the bottom of the purification tank 410. The purified water source in the upper part of the purification tank 410 can be collected through pipes by external collection equipment. When wastewater enters the mixing chamber 201, the sediment in the wastewater enters the bottom of the mixing chamber 201 through the gaps in the perforated plate 205 under its own gravity. When there is a lot of dirt in the mixing chamber 201, it can be activated by the external control system. The forward and reverse motor 208 drives the threaded rod 209 to rotate, which in turn drives the movable frame 206, which is located at the bottom of the perforated plate 205 and whose top view coincides with the perforated plate 205, to move along the bottom of the perforated plate 205 until the movable frame 206 completely fills the gap between two adjacent strip plates in the perforated plate 205. When the movable frame 206 and the perforated plate 205 form a complete surface, the bottom of the mixing chamber 201 is sealed, thus achieving complete isolation between the mixing part and the sewage discharge part of the mixing chamber 201. At this time, it can be opened as follows. Figure 3 The valve shown is installed on the surface of the discharge pipe 210, which allows the dirt retained at the bottom of the mixing chamber 201 to flow downwards along the discharge pipe 210 into the U-shaped conveying housing 501 under its own gravity. After all the dirt in the mixing chamber 201 has been discharged, the forward and reverse motor 208 can be restarted to drive the moving frame 206 to reset, so that the dirt retained in the mixing chamber 201 can be collected again. The decontamination process does not affect the normal operation of the copper-containing wastewater treatment equipment. In addition, when the pressure sensor 405 in one of the filter tanks 403 detects that the pressure value in the filter tank 403 is too high, the valve indicates that there is a lot of dirt in the filter tank 403. The working principle of the pressure sensor 405 is a mature existing technology, which will not be described in detail here. At this time, the valve can be closed. The two valves corresponding to the filter tank 403 are opened, and then the two valves corresponding to another filter tank 403 are opened, allowing the wastewater in the reaction tank 301 to enter the other filter tank 403. Then, the first solenoid valve 408 corresponding to the filter tank 403 with more sludge is opened, allowing the sludge in the filter tank 403 to enter the U-shaped conveying housing 501 under its own gravity along the corresponding slurry outlet pipe 407. The sludge retained at the bottom of the purification tank 410 will enter the U-shaped conveying housing 501 along the sludge outlet pipe 411 under the action of the sludge discharge valve 412. The drive motor 503 is started, driving the spiral blades 502 to rotate, thus conveying the sludge input into the U-shaped conveying housing 501 to the inside of the extrusion mechanism 504. Figure 11As shown, a sludge discharge port is provided on the outside of the extrusion mechanism 504, which can output the extruded copper-containing sludge and collect it through an external collection device. The water discharged during the extrusion process of the extrusion mechanism 504 can flow out through the liquid outlet pipe 505. At this time, the water pump 506 can be started through the external control system to drive the water source in the liquid outlet pipe 505 to enter the interior of the mixing chamber 201 along the return pipe 507 for further purification.

[0027] The wiring diagrams of the servo motor 203, forward / reverse motor 208, second solenoid valve 304, third solenoid valve 306, hydraulic rod 308, delivery pump 401, pressure sensor 405, first solenoid valve 408, mud discharge valve 412, drive motor 503, extrusion mechanism 504, and water pump 506 in this invention are common knowledge in the field, and their working principles are well-known technologies. The appropriate models are selected according to actual use. Therefore, the control methods and wiring arrangements of the servo motor 203, forward / reverse motor 208, second solenoid valve 304, third solenoid valve 306, hydraulic rod 308, delivery pump 401, pressure sensor 405, first solenoid valve 408, mud discharge valve 412, drive motor 503, extrusion mechanism 504, and water pump 506 will not be explained in detail.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated PCB copper-containing wastewater treatment device, comprising a mounting base plate (1), a stirring assembly (2) is arranged on the top of the mounting base plate (1), a reaction assembly (3) is arranged on one side outer surface of the stirring assembly (2), and a purification assembly (4) is arranged on the other side outer surface of the stirring assembly (2), characterized in that: The purification assembly (4) comprises two filter tanks (403), a purification tank (410) and a plurality of inclined pipes (413), the outer surfaces of the two filter tanks (403) are fixedly connected with a leading pipe (402), the inner walls of the two filter tanks (403) are fixedly connected with filter plates (404), the bottoms of the two filter tanks (403) are fixedly connected with slurry outlet pipes (407), and the tops of the two filter tanks (403) are fixedly connected with flow pipes (406). The reaction assembly (3) comprises a reaction tank (301), two storage tanks (302) are arranged on the top of the reaction tank (301), an arc-shaped inner wall (307) is fixed to the inner wall of the reaction tank (301), and a scraping frame (310) is slidably arranged on the outer surface of the arc-shaped inner wall (307). After the copper-containing wastewater is stirred in the reaction tank (301), the capturing agent and the flocculating agent in the two storage tanks (302) are added into the reaction tank (301) to react with the copper-containing wastewater, a difficultly soluble precipitate is generated, the dirt accumulated on the surface of the arc-shaped inner wall (307) is removed by moving the scraping frame (310), and then the dirt is conveyed to the filter tank (403) for filtration.

2. The integrated PCB copper-containing wastewater treatment apparatus according to claim 1, wherein: The purification assembly (4) further comprises a conveying pump (401), pressure sensors (405) are arranged on the inner top surfaces of the two filter tanks (403), slurry outlet pipes (407) are fixedly connected to the bottoms of the two filter tanks (403), first electromagnetic valves (408) are arranged on the outer surfaces of the two slurry outlet pipes (407), a purification pipe (409) is fixedly connected between the outer surfaces of the two flow pipes (406), a mud outlet pipe (411) is fixedly connected to the bottom of the purification tank (410), a mud discharge valve (412) is arranged on the outer surface of the mud outlet pipe (411), and valves are arranged on the outer surfaces of the two flow pipes (406).

3. The integrated PCB copper-containing wastewater treatment apparatus of claim 2, wherein: The reaction assembly (3) further comprises two output pipes (303), second electromagnetic valves (304) are arranged on the outer surfaces of the two output pipes (303), a feeding pipe (305) is fixedly connected to the top of the reaction tank (301), a third electromagnetic valve (306) is arranged on the outer surface of the feeding pipe (305), a hydraulic rod (308) is arranged on the inner top surface of the reaction tank (301), the bottom end of the hydraulic rod (308) is fixedly connected with a lifting rod (309) through an auxiliary rod, and a leading-in pipe (311) is fixedly connected to the bottom of the reaction tank (301).

4. The integrated PCB copper-containing wastewater treatment apparatus according to claim 3, characterized in that: The stirring assembly (2) comprises a stirring bin (201), a liquid inlet pipe (202) is fixedly connected to the top of the stirring bin (201), a servo motor (203) is fixedly installed on the outer surface of the stirring bin (201) through screws, a stirring rod (204) is fixedly connected to the output end of the servo motor (203), a dirt outlet pipe (210) is fixedly connected to the bottom of the stirring bin (201), and a valve is arranged on the outer surface of the dirt outlet pipe (210).

5. The integrated PCB copper-containing wastewater treatment apparatus of claim 4, wherein: The relative inner wall of the stirring bin (201) is fixed with a sieve plate (205), the relative inner wall of the sieve plate (205) is fixedly connected with a limiting rod (207), the outer surface of the limiting rod (207) is slidably sleeved with a moving frame (206), the inner wall of the sieve plate (205) is provided with a forward and reverse motor (208), and the output end of the forward and reverse motor (208) is fixedly connected with a threaded rod (209).

6. The integrated PCB copper-containing wastewater treatment apparatus of claim 5, wherein: The return assembly (5) comprises a U-shaped conveying shell (501), a driving motor (503) is fixedly installed on the outer surface of the U-shaped conveying shell (501) through screws, a spiral blade (502) is fixedly connected to the output end of the driving motor (503), an extrusion mechanism (504) is arranged on the top of the mounting bottom plate (1), a liquid outlet pipe (505) is fixedly communicated with the liquid outlet end of the extrusion mechanism (504), a water pump (506) is fixedly installed on the top of the extrusion mechanism (504) through an auxiliary block, and the output end of the water pump (506) is fixedly communicated with a return pipe (507).

7. The integrated PCB copper-containing wastewater treatment apparatus of claim 6, wherein: The input end of the conveying pump (401) is fixedly communicated with one end of the introduction pipe (311), the output end of the conveying pump (401) is fixedly communicated with one end of the lead-out pipe (402), two valves are arranged on the outer surface of the lead-out pipe (402), one end of the purification pipe (409) is fixedly penetrated into the inside of the purification tank (410), a plurality of inclined pipes (413) are arranged in the inside of the purification tank (410), and the bottom end of the mud outlet pipe (411) is fixedly penetrated into the inside of the U-shaped conveying shell (501).

8. The integrated PCB copper-containing wastewater treatment apparatus of claim 7, wherein: The bottom of the reaction tank (301) is fixedly connected with the top of the mounting bottom plate (1) through an auxiliary frame, the top ends of two output pipes (303) are respectively fixedly penetrated into the insides of two storage tanks (302), the bottom ends of two output pipes (303) are fixedly penetrated into the inside of the reaction tank (301), and one end of the feed pipe (305) is fixedly penetrated into the inside of the stirring bin (201).

9. The integrated PCB copper-containing wastewater treatment apparatus of claim 8, wherein: The outer surface of the stirring bin (201) is fixedly connected with the top of the mounting bottom plate (1) through a compression-resistant frame, both ends of the stirring rod (204) are movably penetrated into the outside of the stirring bin (201), the outer surface of the sieve plate (205) is slidably connected with the inner wall of the stirring bin (201), one end of the threaded rod (209) is movably embedded in the inner wall of the sieve plate (205), the outer surface of the threaded rod (209) is threadedly connected with the inner wall of the moving frame (206), and the bottom end of the sewage outlet pipe (210) is fixedly penetrated into the inside of the U-shaped conveying shell (501).

10. The integrated PCB copper-containing wastewater treatment apparatus of claim 9, wherein: The bottom of the U-shaped conveying shell (501) is fixedly connected with the top of the mounting bottom plate (1), both ends of the spiral blade (502) are movably penetrated into the outside of the U-shaped conveying shell (501), the top end of the liquid outlet pipe (505) is fixedly communicated with the liquid inlet end of the water pump (506), and the top end of the return pipe (507) is fixedly penetrated into the inside of the stirring bin (201).

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