Heavy metal treatment equipment for electroplating wastewater

Abstract

The invention discloses electroplating wastewater heavy metal treatment equipment, which is applied to the technical field of electroplating wastewater treatment and comprises a water treatment box body, a medicine mixing cavity, a filtering cavity and an adsorption cavity are respectively formed in the water treatment box body, the filtering cavity is located at the bottom of the medicine mixing cavity, and a communicating groove is formed between the medicine mixing cavity and the filtering cavity in a penetrating manner. The water pumping impeller is driven by the driving motor to rotate, the electroplating wastewater is forcibly filtered by the annular filter screen in the pumping process, and particles filtered out of the surface of the annular filter screen are cleaned through the filter screen scraper. The surface of the filter screen is prevented from being blocked. Heavy metal particles of electroplating wastewater in the adsorption cavity are subjected to adsorption treatment through the zeolite adsorption layer, meanwhile, the first synchronous belt synchronously drives the brush pad to slide back and forth at the bottom of the zeolite adsorption layer, adsorbed particles are rubbed and cleaned down, blocking of micropores in the adsorption material is reduced, and the service life of the adsorption material is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of electroplating wastewater treatment, and in particular relates to electroplating wastewater heavy metal treatment equipment. Background Art

[0002] Electroplating wastewater is a typical industrial wastewater generated in the electroplating industry, primarily from cleaning, pickling, and plating stripping processes during the electroplating production process. It contains high concentrations of heavy metal ions (such as chromium, copper, nickel, zinc, and lead), necessitating heavy metal adsorption treatment.

[0003] Currently, a Chinese invention with publication number CN118811960B discloses an electrocoagulation treatment device for heavy metal-containing wastewater. Existing heavy metal treatment processes for electroplating wastewater typically use adsorbents such as activated carbon and zeolite to absorb heavy metals from the wastewater. However, in actual treatment, electroplating wastewater contains not only heavy metals but also large amounts of suspended matter and colloids. These suspended matter and colloids can easily clog the micropores within adsorbents such as activated carbon and zeolite, thereby reducing the adsorption efficiency of heavy metals. Although existing treatment equipment can filter suspended matter and colloids from electroplating wastewater using filters, the mesh size of the filters limits some smaller suspended matter and colloids in the electroplating wastewater, causing them to pass through the filters and clog the adsorbent. Furthermore, larger suspended matter and colloids can easily clog the meshes, affecting proper filtration and reducing the adsorption efficiency of heavy metals from electroplating wastewater. Summary of the Invention

[0004] The purpose of the present invention is to provide an electroplating wastewater heavy metal treatment equipment, which has the advantage of flocculating and filtering the suspended matter and colloidal substances in the electroplating wastewater, while avoiding clogging of the filter screen and adsorption material, thereby ensuring the efficiency of the adsorption material in the adsorption treatment of heavy metals in the electroplating wastewater.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A heavy metal treatment device for electroplating wastewater, comprising a water treatment box, wherein a mixing chamber, a filter chamber and an adsorption chamber are respectively provided inside the water treatment box, the filter chamber is at the bottom of the mixing chamber, a connecting groove is opened between the mixing chamber and the filter chamber, an electric control valve is bolted to the inside of the connecting groove, the adsorption chamber is located on the side of the water treatment box away from the mixing chamber and the filter chamber, a zeolite adsorption layer is bolted to the inside of the adsorption chamber, a filtering mechanism is installed inside the filter chamber and the adsorption chamber, and a mixing mechanism is installed inside the mixing chamber.

[0006] The above technical solution adds a flocculant to the electroplating wastewater and agitates it in multiple directions. This allows the flocculant to fully flocculate suspended matter and colloidal matter in the electroplating wastewater, forming larger particles and flocs. This reduces the amount of suspended matter and colloidal matter that passes through the filter, improving the filtration efficiency of the filter. A motor drives the pumping impeller to rotate, pumping the electroplating wastewater from the filter chamber into the adsorption chamber. During the pumping process, the annular filter forcibly filters the electroplating wastewater, and a filter scraper removes particles from the surface of the annular filter. This prevents clogging of the filter surface and ensures the adsorption efficiency of the adsorbent material in adsorbing heavy metals in the electroplating wastewater. The zeolite adsorption layer adsorbs heavy metal particles in the adsorption chamber. Simultaneously, a first synchronous belt drives a brush pad to slide back and forth across the bottom of the zeolite adsorption layer, removing adsorbed particles by friction. This reduces clogging of the micropores within the adsorption material and increases its service life.

[0007] The present invention is further configured as follows: the filtering mechanism includes a driving motor bolted to a water treatment box; the interior of the filtering chamber is rotatably connected to a rotating tube bolted to an output end of the driving motor; a through groove is provided on the surface of the rotating tube; an end of the rotating tube away from the driving motor is rotatably sleeved on a fixed column bolted to the water treatment box; a drainage groove is provided inside the fixed column; an annular filter is fixedly sleeved on the surface of the fixed column; and a connecting hole connected to the drainage groove is provided on the surface of the fixed column.

[0008] By adopting the above technical solution, the electroplating wastewater is forced to pass through the annular filter for filtration during the electroplating wastewater pumping process, so that the filtered electroplating wastewater enters the drainage trough through the connecting hole.

[0009] The transmission gear of the present invention is a gear which is connected with the gear of the driven gear of the driven gear. The gear of the driven gear is connected with the gear of the driven gear to the gear of the driven gear. When the gear of the driven gear is turned, the transmission gear of the driven gear is turned by the spring and the spring is output.

[0010] By adopting the above technical solution, the first synchronous belt can synchronously drive the pumping impeller to rotate inside the impeller support cover, and the electroplating wastewater inside the filter chamber is sucked into the interior of the adsorption chamber through the pumping impeller pump driven by the forward and reverse screws.

[0011] The present invention is further configured as follows: the surfaces of the forward and reverse screws are threadedly sleeved with screw sleeves, the surface of the fixed support rod is slidably sleeved with a limiting slip ring welded to the surface of the screw sleeve, the top of the limiting slip ring is welded with a support plate, the top of the support plate is bolted with a sliding platform, and the top of the sliding platform is bonded with a brush pad that is slidably connected to the bottom of the zeolite adsorption layer.

[0012] By adopting the above technical solution, the brush pad is driven to slide back and forth on the bottom of the zeolite adsorption layer, and the adsorbed particles are cleaned off by friction, thereby reducing the blockage of micropores inside the adsorption material.

[0013] The present invention is further configured as follows: a filter scraper is welded to the inner surface of the rotating tube and is in sliding connection with the surface of the annular filter.

[0014] By adopting the above technical solution, the particulate matter filtered out from the surface of the annular filter is cleaned by the filter scraper, thereby avoiding clogging of the filter surface.

[0015] The present invention is further configured as follows: the medicine mixing mechanism includes a first disc gear fixedly sleeved with the output end of the driving motor, the top of the first disc gear is meshed with a second disc gear rotatably connected to the water treatment box, the interior of the medicine mixing chamber is rotatably connected to a rotating cylinder, the ends of the rotating cylinder and the second disc gear close to each other are bolted to a third synchronous wheel, the surfaces of the two third synchronous wheels are transmission sleeved with a third synchronous belt, the end of the rotating cylinder away from the third synchronous wheel is rotatably sleeved with a fixed pillar bolted to the water treatment box, the surfaces of the fixed pillars inside the rotating cylinder are fixedly sleeved with the third bevel gear, the surface of the rotating cylinder is penetrated by a stirring rod rotatably connected, auxiliary stirring rods are welded on both sides of the surface of the stirring rod, and the end of the stirring rod inside the rotating cylinder is bolted to a fourth bevel gear meshing with the third bevel gear.

[0016] By adopting the above technical solution, the flocculant is fully stirred in multiple directions so that the flocculant can fully flocculate the suspended matter and colloidal substances in the electroplating wastewater to form larger particles and floccules, thereby reducing the suspended matter and colloidal substances passing through the filter.

[0017] The present invention is further configured as follows: a medicine tank is bolted to one side of the top of the water treatment box, a sealing cover is bolted to the top of the medicine tank, and one end of the medicine tank close to the water treatment box is fixedly connected to a solenoid valve connected to the inside of the mixing chamber.

[0018] By adopting the above technical solution, the solenoid valve is controlled to open, so that the flocculant in the reagent tank can be added into the mixing chamber to be mixed with the electroplating wastewater.

[0019] The present invention is further configured as follows: a wastewater inlet and a clean water outlet connected to the top of the mixing chamber and the adsorption chamber are bolted to the side of the water treatment box away from the medicine tank; the bottoms of the wastewater inlet and the clean water outlet are both provided with sludge outlets bolted to the water treatment box; the two sludge outlets are respectively connected to the bottom of the filter chamber and the adsorption chamber; the wastewater inlet and the clean water outlet are both bolted to a blocking cover at one end away from the sludge outlet and the water treatment box.

[0020] Using this technical solution, electroplating wastewater can be pumped into the mixing chamber by opening the wastewater inlet, while clean water, after adsorption and filtration, can be discharged from the adsorption chamber by opening the clean water outlet. Flocculent matter and heavy metal particles that have been filtered and adsorbed can be discharged from the filtration and adsorption chambers respectively through the sludge outlets.

[0021] The present invention is further configured as follows: observation ports communicating with the drug mixing chamber and the top of the adsorption chamber are provided on both sides of the top of the water treatment box, and a movable cover is bolted to the top of the observation port.

[0022] By adopting the above technical solution, the movable cover can be opened to facilitate observation of the electroplating wastewater treatment status inside the mixing chamber and the adsorption chamber through the observation port.

[0023] In summary, the present invention has the following beneficial effects: 1. By adding flocculants to the electroplating wastewater and stirring it in multiple directions, the flocculants can fully flocculate the suspended matter and colloidal substances in the electroplating wastewater to form larger particles and floccules. This reduces the amount of suspended matter and colloidal substances passing through the filter and improves the filtering effect of the filter. 2. The motor drives the pumping impeller to rotate, sucking the electroplating wastewater inside the filter chamber into the adsorption chamber. During the pumping process, the annular filter screen forcibly filters the electroplating wastewater, and the filter scraper cleans the particulate matter filtered out of the annular filter screen. This prevents clogging of the filter screen surface and ensures the adsorption efficiency of the adsorption material on heavy metals in the electroplating wastewater.

[0024] 3. The heavy metal particles in the electroplating wastewater inside the adsorption chamber are adsorbed by the zeolite adsorption layer. At the same time, the first synchronous belt drives the brush pad to slide back and forth at the bottom of the zeolite adsorption layer to clean up the adsorbed particles by friction, reduce the blockage of micropores inside the adsorption material, and improve the service life of the adsorption material. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a cross-sectional view of the structure of the present invention; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 This is a sectional view of the side structure of the fixing column of the present invention; Figure 5 This is a sectional view of the side structure of the fixed support rod of the present invention; Figure 6 This is a sectional view of the side structure of the rotating drum of the present invention; Figure 7 It is a schematic structural diagram of the medicine tank of the present invention; Figure 8 It is a schematic diagram of the rotating tube structure of the present invention.

[0026] Figures: 1, water treatment box; 2, mixing chamber; 3, filter chamber; 4, connecting groove; 5, adsorption chamber; 6, wastewater inlet; 7, clean water outlet; 8, filtering mechanism; 801, driving motor; 802, rotating tube; 803, through groove; 804, fixing column; 805, annular filter; 806, drainage groove; 807, connecting hole; 808, first transmission rod; 809, first synchronous wheel; 810, first synchronous belt; 811, first bevel gear; 812, second bevel gear; 813, second transmission rod; 814, second synchronous belt; 815, second synchronous wheel; 816, forward and reverse screw rod; 817, impeller support cover; 818, fixed support rod; 819, Limiting slip ring; 820, screw sleeve; 821, pumping impeller; 822, support plate; 823, sliding platform; 824, brush pad; 825, filter scraper; 9, drug mixing mechanism; 901, first disc gear; 902, second disc gear; 903, third synchronous wheel; 904, rotating cylinder; 905, third synchronous belt; 906, stirring rod; 907, auxiliary stirring rod; 908, fixed pillar; 909, third bevel gear; 910, fourth bevel gear; 10, zeolite adsorption layer; 11, medicine tank; 12, solenoid valve; 13, sealing cover; 14, movable cover; 15, observation port; 16, blocking cover; 17, sludge outlet; 18, electric control valve. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1: refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5An electroplating wastewater heavy metal treatment device includes a water treatment housing 1. A mixing chamber 2, a filter chamber 3, and an adsorption chamber 5 are defined within the water treatment housing 1. The filter chamber 3 is located at the bottom of the mixing chamber 2. A connecting groove 4 extends between the mixing chamber 2 and the filter chamber 3. An electrically controlled valve 18 is bolted to the connecting groove 4. The adsorption chamber 5 is located on a side of the water treatment housing 1 away from the mixing chamber 2 and the filter chamber 3. A zeolite adsorption layer 10 is bolted to the adsorption chamber 5. A filter mechanism 8 is installed in both the filter chamber 3 and the adsorption chamber 5. A mixing mechanism 9 is installed in the mixing chamber 2. A pumping impeller 821 is driven by a driving motor 801 to rotate, pumping the electroplating wastewater from the filter chamber 3 into the adsorption chamber 5. During the pumping process, an annular filter 805 forcibly filters the electroplating wastewater. Particulate matter filtered from the surface of the annular filter 805 is cleaned by a filter scraper 825. This prevents clogging of the filter surface and ensures the adsorption efficiency of the adsorption material in the electroplating wastewater. The heavy metal particles in the electroplating wastewater inside the adsorption chamber 5 are adsorbed and treated by the zeolite adsorption layer 10. At the same time, the first synchronous belt 810 synchronously drives the brush pad 824 to slide back and forth at the bottom of the zeolite adsorption layer 10, frictionally cleaning the adsorbed particles, reducing the blockage of micropores inside the adsorption material, and improving the service life of the adsorption material.

[0029] refer to Figure 2 、 Figure 3 、 Figure 4 The filtering mechanism 8 includes a drive motor 801 bolted to the water treatment housing 1. A rotating tube 802 is rotatably connected to the filter chamber 3 and bolted to the output end of the drive motor 801. A through groove 803 is formed on the surface of the rotating tube 802. The end of the rotating tube 802 away from the drive motor 801 is rotatably connected to a fixed column 804 bolted to the water treatment housing 1. A drainage groove 806 is formed inside the fixed column 804. An annular filter screen 805 is fixedly connected to the surface of the fixed column 804. A connecting hole 807 is formed on the surface of the fixed column 804 and communicates with the drainage groove 806. During the electroplating wastewater pumping process, the electroplating wastewater is forced to pass through the annular filter screen 805 for filtration, and the filtered electroplating wastewater enters the drainage groove 806 through the connecting hole 807.

[0030] refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5, the two sides of the bottom of the inner cavity of the water treatment box 1 are respectively rotatably connected with the first transmission rod 808 and the second transmission rod 813, the ends of the first transmission rod 808 and the second transmission rod 813 close to each other are bolted with a first bevel gear 811, and the tops of the two first bevel gears 811 are meshed with a second bevel gear 812 rotatably connected to the water treatment box 1, the rotating tube 802 and the end of the first transmission rod 808 close to the drive motor 801 are fixedly sleeved with a first synchronous wheel 809, and the surfaces of the two first synchronous wheels 809 are both transmission sleeved with a first synchronous belt 810, and the end of the fixed column 804 away from the rotating tube 802 is bolted An impeller support cover 817 is provided, which is connected to the drainage trough 806 and the adsorption chamber 5, respectively. A fixed support rod 818 is provided at the bottom of the inner cavity of the adsorption chamber 5, which is bolted to the impeller support cover 817. A forward and reverse screw rod 816 is rotatably connected to the interior of the fixed support rod 818. One end of the forward and reverse screw rod 816 inside the impeller support cover 817 is fixedly connected to a pumping impeller 821. The end of the forward and reverse screw rod 816 away from the pumping impeller 821 and the end of the second transmission rod 813 away from the first bevel gear 811 are both fixedly connected to a second synchronous wheel 815. The surfaces of the two second synchronous wheels 815 are both driven by a second synchronous belt 814. The first synchronous belt 810 can synchronously drive the pumping impeller 821 to rotate inside the impeller support cover 817, and the electroplating wastewater inside the filter chamber 3 is pumped into the adsorption chamber 5 through the pumping impeller 821 driven by the forward and reverse screw rod 816.

[0031] refer to Figure 2 、 Figure 3 、 Figure 5 The surfaces of the forward and reverse screws 816 are threadedly connected to screw sleeves 820. The surface of the fixed support rod 818 is slidably connected to a limit ring 819 welded to the surface of the screw sleeve 820. A support plate 822 is welded to the top of the limit ring 819. A sliding platform 823 is bolted to the top of the support plate 822. The top of the sliding platform 823 is bonded to a brush pad 824 that is slidably connected to the bottom of the zeolite adsorption layer 10. By driving the brush pad 824 to slide back and forth on the bottom of the zeolite adsorption layer 10, it frictionally cleans adsorbed particulate matter, thereby reducing the blockage of the micropores within the adsorption material.

[0032] refer to Figure 4 The inner surface of the rotating tube 802 is welded with a filter scraper 825 that is slidably connected to the surface of the annular filter 805. The particles filtered out of the surface of the annular filter 805 are cleaned by the filter scraper 825 to avoid clogging of the filter surface.

[0033] refer to Figure 1 、 Figure 7A reagent tank 11 is bolted to one side of the top of the water treatment housing 1. A sealing cover 13 is bolted to the top of the reagent tank 11. A solenoid valve 12 is fixedly connected to the end of the reagent tank 11 near the water treatment housing 1 and communicates with the interior of the mixing chamber 2. By controlling the opening of the solenoid valve 12, the flocculant in the reagent tank 11 can be added to the interior of the mixing chamber 2 and mixed with the electroplating wastewater.

[0034] Brief description of the operating process: Electroplating wastewater is pumped into the mixing chamber 2 and flocculant is added to the mixing chamber 2 to flocculate the suspended matter and colloidal matter in the electroplating wastewater. The electrically controlled valve 18 is then opened to allow the flocculated electroplating wastewater and flocculants to enter the filter chamber 3 through the connecting groove 4. The driving motor 801 is then turned on to drive the rotating tube 802 to rotate. Simultaneously, the driving motor 801 is driven by the first synchronous wheel 809 and the first synchronous belt 810, thereby synchronously driving the first transmission rod 808 to rotate. The first transmission rod 808 drives the first bevel gear 811 and the second bevel gear 812 to engage with each other, thereby driving the second transmission rod 813 to rotate. Then, the second transmission rod 813, driven by the second synchronous pulley 815 and the second synchronous belt 814, synchronously drives the forward and reverse screw 816 to rotate within the fixed support rod 818. This in turn drives the pumping impeller 821 to rotate within the impeller support cover 817. Electroplating wastewater within the filter chamber 3 is pumped into the adsorption chamber 5 by the rotating pumping impeller 821 driven by the forward and reverse screw 816. During this pumping process, the electroplating wastewater is forced through the annular filter 805 for filtration, passing through the connecting hole 807 and into the drain trough 806. Because the electroplating wastewater flocculates, suspended matter and colloidal matter in the flocculation process become larger, allowing the annular filter 805 to fully filter the suspended matter and colloidal matter on its surface. As the rotating tube 802 rotates, the filter scraper 825 scrapes away any suspended matter and colloidal matter adhering to the surface of the annular filter 805, preventing clogging.

[0035] The electroplating wastewater is then pumped into the adsorption chamber 5. Once the electroplating wastewater level passes through the zeolite adsorption layer 10, the zeolite adsorption layer 10 adsorbs the heavy metal particles within the electroplating wastewater. Simultaneously, the forward and reverse screws 816 rotate, threadedly engaging with the screw sleeve 820 (due to the threaded engagement between the forward and reverse screws 816 and the sleeve 820, impurities in the wastewater are fluid and will not adhere to the surface of the forward and reverse screws 816, thereby not affecting its normal use. Furthermore, the interior is cleaned after use, so no sediment will form on the surface of the forward and reverse screws 816, affecting its use). This drives the limiting slip ring 819 to slide back and forth on the surface of the fixed support rod 818, thereby causing the support plate 822 to drive the brush pad 824 on the top of the sliding platform 823 to clean the bottom of the zeolite adsorption layer 10, scraping off the heavy metal particles adsorbed on the bottom, thereby reducing the blockage of the micropores within the zeolite adsorption layer 10.

[0036] Example 2: refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 A heavy metal treatment device for electroplating wastewater includes a water treatment housing 1. A mixing chamber 2, a filter chamber 3, and an adsorption chamber 5 are respectively provided within the water treatment housing 1. The filter chamber 3 is located at the bottom of the mixing chamber 2. A connecting groove 4 is provided between the mixing chamber 2 and the filter chamber 3. An electrically controlled valve 18 is bolted to the connecting groove 4. The adsorption chamber 5 is located on a side of the water treatment housing 1 away from the mixing chamber 2 and the filter chamber 3. A zeolite adsorption layer 10 is bolted to the adsorption chamber 5. A filter mechanism 8 is installed in both the filter chamber 3 and the adsorption chamber 5. A mixing mechanism 9 is installed in the mixing chamber 2. By adding a flocculant to the electroplating wastewater and stirring the flocculant in multiple directions, the flocculant can fully flocculate the suspended matter and colloidal matter in the electroplating wastewater to form larger particles and flocs. This reduces the amount of suspended matter and colloidal matter that passes through the filter screen, improving the filtering effect of the filter screen.

[0037] refer to Figure 2 、 Figure 3 、 Figure 6The medicine mixing mechanism 9 includes a first disc gear 901 fixedly sleeved with the output end of the driving motor 801, the top of the first disc gear 901 is meshed with a second disc gear 902 rotatably connected to the water treatment box 1, the interior of the medicine mixing chamber 2 is rotatably connected to a rotating cylinder 904, and the ends of the rotating cylinder 904 and the second disc gear 902 close to each other are bolted with a third synchronous wheel 903, and the surfaces of the two third synchronous wheels 903 are both transmission sleeved with a third synchronous belt 905, and the distal end of the rotating cylinder 904 is connected to the rotating cylinder 904. A fixed support 908, bolted to the water treatment housing 1, is rotatably sleeved on one end of the third synchronous wheel 903. A third bevel gear 909 is fixedly sleeved on the surface of the fixed support 908 within the rotating cylinder 904. A stirring rod 906 is rotatably connected to the surface of the rotating cylinder 904. Auxiliary stirring rods 907 are welded to both sides of the surface of the stirring rod 906. One end of the stirring rod 906 within the rotating cylinder 904 is bolted to a fourth bevel gear 910 that meshes with the third bevel gear 909. The flocculant is fully agitated in multiple directions so that it can fully flocculate suspended matter and colloidal matter in the electroplating wastewater, forming larger particles and floccules, thereby reducing the amount of suspended matter and colloidal matter that passes through the filter.

[0038] refer to Figure 1 The side of the water treatment housing 1 away from the reagent tank 11 is bolted to a wastewater inlet 6 and a clean water outlet 7, which are connected to the tops of the mixing chamber 2 and the adsorption chamber 5, respectively. The bottoms of both the wastewater inlet 6 and the clean water outlet 7 are bolted to the water treatment housing 1. The two sludge outlets 17 are connected to the bottoms of the filtration chamber 3 and the adsorption chamber 5, respectively. A blocking cap 16 is bolted to the ends of the wastewater inlet 6 and the clean water outlet 7, which are away from the sludge outlet 17 and away from the water treatment housing 1. The back panel of the water treatment housing 1, where the wastewater inlet 6, clean water outlet 7, and sludge outlet 17 are mounted, is bolted together and can be disassembled for maintenance of internal components. Opening the wastewater inlet 6 allows electroplating wastewater to be pumped into the mixing chamber 2, while opening the clean water outlet 7 allows clean water, which has been adsorbed and filtered, to be discharged from the adsorption chamber 5. Flocculent matter and heavy metal particles, which have been filtered and adsorbed, can be discharged from the filtration chamber 3 and the adsorption chamber 5, respectively, through the sludge outlet 17.

[0039] refer to Figure 1 、 Figure 2 Observation ports 15 are provided on both sides of the top of the water treatment box 1, communicating with the tops of the mixing chamber 2 and the adsorption chamber 5. A movable cover 14 is bolted to the top of the observation port 15. Opening the movable cover 14 allows the electroplating wastewater treatment status inside the mixing chamber 2 and the adsorption chamber 5 to be observed through the observation port 15.

[0040] A brief description of the operating process: Electroplating wastewater is pumped into the mixing chamber 2 and flocculant is added thereto. When the drive motor 801 is turned on, the first disc gear 901 rotates, meshing with the second disc gear 902. The second disc gear 902, driven by the third synchronous gear 903 and the third synchronous belt 905, drives the rotating drum 904 to rotate within the mixing chamber 2, causing the stirring rod 906 to stir and mix the electroplating wastewater and flocculant. Simultaneously, as the stirring rod 906 rotates, the stirring rod 906, driven by the rotating drum 904, meshes with the third bevel gear 909, which is fixed on the surface of the fixed support 908, via the fourth bevel gear 910. This causes the stirring rod 906 to rotate, driving the auxiliary stirring rod 907, causing the stirring rod 906 to rotate in different directions, stirring the electroplating wastewater and flocculant. This allows the flocculant to fully flocculate the suspended matter and colloidal matter in the electroplating wastewater.

[0041] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An electroplating wastewater heavy metal treatment device, comprising a water treatment box (1), characterized in that: The water treatment box (1) is provided with a drug mixing chamber (2), a filter chamber (3) and an adsorption chamber (5) respectively. The filter chamber (3) is located at the bottom of the drug mixing chamber (2). A communication groove (4) is provided between the drug mixing chamber (2) and the filter chamber (3). An electric control valve (18) is bolted to the inside of the communication groove (4). The adsorption chamber (5) is located on a side of the water treatment box (1) away from the drug mixing chamber (2) and the filter chamber (3). A zeolite adsorption layer (10) is bolted to the inside of the adsorption chamber (5). A filter mechanism (8) is installed inside the filter chamber (3) and the adsorption chamber (5). A drug mixing mechanism (9) is installed inside the drug mixing chamber (2).

2. The electroplating wastewater heavy metal treatment equipment according to claim 1, characterized in that: The filtering mechanism (8) comprises a driving motor (801) bolted to the water treatment box (1); a rotating tube (802) bolted to the output end of the driving motor (801) is rotatably connected to the interior of the filtering chamber (3); a through groove (803) is provided on the surface of the rotating tube (802); an end of the rotating tube (802) away from the driving motor (801) is rotatably sleeved on a fixing column (804) bolted to the water treatment box (1); a drainage groove (806) is provided inside the fixing column (804); an annular filter screen (805) is fixedly sleeved on the surface of the fixing column (804); and a communicating hole (807) communicating with the drainage groove (806) is provided on the surface of the fixing column (804).

3. The electroplating wastewater heavy metal treatment equipment according to claim 2, characterized in that: The first transmission rod (808) and the second transmission rod (813) are rotatably connected to the two sides of the bottom of the inner cavity of the water treatment box (1), and the first transmission rod (808) and the second transmission rod (813) are both bolted to the first bevel gear (811) at the ends close to each other. The tops of the two first bevel gears (811) are meshed with the second bevel gear (812) rotatably connected to the water treatment box (1). The ends of the rotating tube (802) and the first transmission rod (808) close to the drive motor (801) are both fixedly sleeved with the first synchronous wheel (809). The surfaces of the two first synchronous wheels (809) are both rotatably sleeved with the first synchronous belt (810). The end of the fixed column (804) away from the rotating tube (802) is bolted to the first bevel gear (811). An impeller support cover (817) is provided which is respectively connected to the drainage groove (806) and the adsorption chamber (5); a fixed support rod (818) bolted to the impeller support cover (817) is provided at the bottom of the inner cavity of the adsorption chamber (5); a forward and reverse screw rod (816) is rotatably connected to the interior of the fixed support rod (818); one end of the forward and reverse screw rod (816) located inside the impeller support cover (817) is fixedly sleeved with a pumping impeller (821); one end of the forward and reverse screw rod (816) away from the pumping impeller (821) and one end of the second transmission rod (813) away from the first bevel gear (811) are both fixedly sleeved with a second synchronous wheel (815); and the surfaces of the two second synchronous wheels (815) are both transmission-sleeved with a second synchronous belt (814).

4. The electroplating wastewater heavy metal treatment equipment according to claim 3, characterized in that: The surfaces of the forward and reverse screws (816) are threadedly sleeved with screw sleeves (820), the surface of the fixed support rod (818) is slidably sleeved with a limiting slip ring (819) welded to the surface of the screw sleeve (820), the top of the limiting slip ring (819) is welded with a support plate (822), the top of the support plate (822) is bolted with a sliding platform (823), and the top of the sliding platform (823) is bonded with a brush pad (824) that is slidably connected to the bottom of the zeolite adsorption layer (10).

5. The electroplating wastewater heavy metal treatment equipment according to claim 2, characterized in that: A filter scraper (825) is welded to the inner surface of the rotating tube (802) and is slidably connected to the surface of the annular filter (805).

6. The electroplating wastewater heavy metal treatment equipment according to claim 2, characterized in that: The medicine mixing mechanism (9) comprises a first disc gear (901) fixedly sleeved with the output end of the driving motor (801), a second disc gear (902) rotatably connected to the water treatment box (1) is meshed with the top of the first disc gear (901), a rotating cylinder (904) is rotatably connected to the interior of the medicine mixing chamber (2), a third synchronous wheel (903) is bolted to one end of the rotating cylinder (904) and the second disc gear (902) close to each other, and a third synchronous belt (905) is transmission sleeved on the surfaces of the two third synchronous wheels (903), and the rotating cylinder (904) is rotatably connected to the water treatment box (1). One end of the rotating cylinder (904) away from the third synchronous wheel (903) is rotatably sleeved with a fixed support (908) bolted to the water treatment box (1); the surface of the fixed support (908) inside the rotating cylinder (904) is fixedly sleeved with a third bevel gear (909); a stirring rod (906) is rotatably connected to the surface of the rotating cylinder (904); auxiliary stirring rods (907) are welded to both sides of the surface of the stirring rod (906); and one end of the stirring rod (906) inside the rotating cylinder (904) is bolted with a fourth bevel gear (910) meshing with the third bevel gear (909).

7. The electroplating wastewater heavy metal treatment equipment according to claim 1, characterized in that: A medicine tank (11) is bolted to one side of the top of the water treatment box (1), a sealing cover (13) is bolted to the top of the medicine tank (11), and one end of the medicine tank (11) close to the water treatment box (1) is fixedly connected to a solenoid valve (12) that is connected to the interior of the medicine mixing chamber (2).

8. The electroplating wastewater heavy metal treatment equipment according to claim 1, characterized in that: The water treatment box (1) is bolted to a wastewater inlet (6) and a clean water outlet (7) on one side away from the medicine tank (11), which are connected to the top of the inner cavity of the mixing chamber (2) and the adsorption chamber (5). The bottoms of the wastewater inlet (6) and the clean water outlet (7) are both provided with a sludge outlet (17) bolted to the water treatment box (1). The two sludge outlets (17) are respectively connected to the bottom of the inner cavity of the filter chamber (3) and the adsorption chamber (5). The ends of the wastewater inlet (6) and the clean water outlet (7) away from the sludge outlet (17) and away from the water treatment box (1) are both bolted to a blocking cover (16).

9. The electroplating wastewater heavy metal treatment equipment according to claim 1, characterized in that: Observation ports (15) communicating with the tops of the mixing chamber (2) and the adsorption chamber (5) are provided on both sides of the top of the water treatment box (1), and a movable cover (14) is bolted to the top of the observation port (15).

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