Treatment and purification equipment for underground water containing heavy metals

Abstract

The invention discloses treatment and purification equipment for underground water containing heavy metals, and relates to the technical field of sewage treatment.The treatment and purification equipment comprises a filtering mechanism and a water inlet pipe installed on one side of the top of the filtering mechanism, a multi-stage treatment mechanism is arranged on one side of the bottom of the filtering mechanism, and a drainage valve is arranged on the outer side of the multi-stage treatment mechanism; the filtering mechanism comprises a filtering box, a rotating motor is fixedly installed on one side of the filtering box, rotating discs are symmetrically and rotationally connected to the two sides of the interior of the filtering box, rotating supports are fixedly installed on the inner sides of the rotating discs, and a meshing gear ring is fixedly installed on the side, away from the rotating motor, of the filtering box; under the action of gravity, a gravity sliding block slides in a cleaning sliding groove, meanwhile, the gravity sliding block drives a meshing gear to move, and meanwhile, the meshing gear drives a rotating cleaning roller to rotate by utilizing the characteristic that the meshing gear is in meshing connection with a meshing rack, so that impurities on the surface of the filter screen body are cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly to a treatment and purification device for heavy metal-containing groundwater. Background Art

[0002] Groundwater is a precious fresh water resource for human beings. However, with the continuous development of the social industrialization process, wastewater discharge, industrial waste residues, agricultural irrigation, landfill leakage, and damage to transportation pipelines and storage tanks of petrochemical raw materials may all cause groundwater pollution, making the already tense water resource shortage problem even more serious. Moreover, it poses serious threats and challenges to human health, food safety, drinking water safety, regional ecological environment, sustainable economic and social development, and even social stability. Groundwater pollution remediation has become an environmental issue that has attracted much public and social attention.

[0003] Publication No. CN 210313826 U discloses a contaminated groundwater treatment device. A first filter plate, a suspended matter adsorption plate, a heavy metal ion solidification plate, a heavy metal ion adsorption plate, and a second filter plate are arranged in the filter tank, so as to realize multiple filtration and adsorption treatments of groundwater, filter and absorb impurities such as suspended matters in the groundwater, and degrade heavy metals, effectively removing pollutants and heavy metal ions in the groundwater. The automatic cleaning mechanism in the filter tank can achieve automatic cleaning, avoiding the accumulation of impurities on the suspended matter adsorption plate, the heavy metal ion solidification plate, and the heavy metal ion adsorption plate, which affects the treatment effect of groundwater. At the same time, a reaction tower is also provided, and drugs can be added to the groundwater in the reaction tower to adjust the pH value of the groundwater. The groundwater can be further treated to obtain a clarified liquid, and the clarified liquid can be recycled after being output. However, the following problems still exist in the actual use of this patent: Although the contaminated groundwater treatment device can utilize the first filter plate, the suspended matter adsorption plate, the heavy metal ion solidification plate, the heavy metal ion adsorption plate, and the second filter plate to perform multiple filtration and adsorption treatments on groundwater, after multiple filtration and adsorption treatments, certain impurities will be adsorbed on the first filter plate, the suspended matter adsorption plate, the heavy metal ion solidification plate, the heavy metal ion adsorption plate, and the second filter plate. If the impurities cannot be cleaned in time, it will cause the phenomenon of blockage of the first filter plate, the suspended matter adsorption plate, the heavy metal ion solidification plate, the heavy metal ion adsorption plate, and the second filter plate, thereby affecting the subsequent filtration and adsorption effect. At the same time, it is impossible to clean the contaminated groundwater treatment device without stopping the machine, resulting in the need to stop the contaminated groundwater treatment device when cleaning the first filter plate, the suspended matter adsorption plate, the heavy metal ion solidification plate, the heavy metal ion adsorption plate, and the second filter plate, thereby affecting the treatment efficiency of the contaminated groundwater treatment device.

[0004] A treatment and purification device for heavy metal-containing groundwater is proposed to solve the problems mentioned above. Summary of the Invention

[0005] The object of the present invention is to provide a treatment and purification device for groundwater containing heavy metals, so as to solve the problem proposed in the above-mentioned background technology that although the polluted groundwater treatment device can perform multiple filtration and adsorption treatments on groundwater by using the first filter plate, suspended matter adsorption plate, heavy metal ion solidification plate, heavy metal ion adsorption plate and the second filter plate, after multiple filtration and adsorption treatments, certain impurities will be adsorbed on the first filter plate, suspended matter adsorption plate, heavy metal ion solidification plate, heavy metal ion adsorption plate and the second filter plate. The inability to clean the impurities in time will cause the phenomenon of blockage of the first filter plate, suspended matter adsorption plate, heavy metal ion solidification plate, heavy metal ion adsorption plate and the second filter plate, thus affecting the subsequent filtration and adsorption effect. At the same time, it is impossible to clean the polluted groundwater treatment device without stopping the machine, resulting in the need to stop the polluted groundwater treatment device when cleaning the first filter plate, suspended matter adsorption plate, heavy metal ion solidification plate, heavy metal ion adsorption plate and the second filter plate, thereby affecting the treatment efficiency of the polluted groundwater treatment device.

[0006] To achieve the above object, the present invention provides the following technical solution: A treatment and purification device for groundwater containing heavy metals, comprising a filtration mechanism, and a water inlet pipe installed on one side of the top of the filtration mechanism; One side of the bottom of the filtration mechanism is provided with a multi-stage treatment mechanism, and a drain valve is arranged on the outside of the multi-stage treatment mechanism; It further includes: The filtration mechanism includes a filtration tank, a rotation motor is fixedly installed on one side of the filtration tank, two sides inside the filtration tank are symmetrically and rotatably connected with rotation disks, and a rotation bracket is fixedly installed inside the rotation disks; Among them, a meshing gear ring is fixedly installed on the side of the filtration tank away from the rotation motor, and an unlocking chute is opened inside one of the rotation disks; Among them, a locking spring is slidably connected inside the unlocking chute, the end of the locking spring is rotatably connected with a first locking tooth, and a limit baffle is fixedly installed at the end of the rotation disk close to the first locking tooth.

[0007] Preferably, a plurality of installation chutes are opened inside the rotation bracket, installation sliders are slidably connected inside the installation chutes, a sector-shaped filter tank is fixedly installed between the two installation sliders, a filter baffle is fixedly installed on one side inside the sector-shaped filter tank, a filter mesh body is fixedly installed on the side of the sector-shaped filter tank away from the filter baffle, and cleaning chutes are symmetrically opened on both sides inside the sector-shaped filter tank.

[0008] Preferably, gravity sliders are slidably connected inside the two cleaning chutes. Meshing gears are rotatably connected to the inner sides of the two gravity sliders. A rotating cleaning roller is fixedly connected between the two meshing gears. The bottom of the meshing gear is meshed with a meshing rack, and the meshing racks are symmetrically installed on both inner sides of the fan-shaped filter tank.

[0009] Preferably, a locking bracket is fixedly installed at the end of the installation slider. A locking gear is rotatably connected to the central position inside the locking bracket. Locking racks are symmetrically meshed on both sides of the locking gear. An unlocking slider is fixedly installed at the end of one locking rack, and a locking bolt is fixedly connected to the end of the other locking rack. Return springs are fixedly connected to the ends of the two locking racks.

[0010] Preferably, a partition plate is fixedly installed at the bottom of the filter tank near the rotating bracket. A sewage discharge tank is fixedly installed on one side of the bottom of the filter tank. The water inlet pipe is arranged at the top of the filter tank.

[0011] Preferably, the multi-stage treatment mechanism includes a first treatment tank and a second treatment tank. Connecting support blocks are symmetrically installed on both sides of the tops of the first treatment tank and the second treatment tank. A sedimentation tank is fixedly installed between the connecting support blocks. First motor covers are symmetrically installed on both sides of the sedimentation tank. Conveyor motors are fixedly installed at the bottoms of the two first motor covers.

[0012] Preferably, the output end of the conveyor motor is fixedly connected to a first sprocket drive assembly. Drive rollers are symmetrically installed up and down on one side of the first sprocket drive assembly. Limiting brackets are rotatably connected to both ends of the drive roller. The limiting brackets are fixedly connected to the first motor cover. A permeable conveyor belt is drivenly connected to the outside of the drive roller.

[0013] Preferably, collection protrusions are fixedly installed on the surface of the permeable conveyor belt. First auxiliary rollers are symmetrically rotatably connected to the inner side of the top of the sedimentation tank. Second auxiliary rollers are symmetrically rotatably connected to the inner side of the bottom of the sedimentation tank. The first auxiliary rollers and the second auxiliary rollers are both drivenly connected to the permeable conveyor belt. A drain valve is fixedly installed on one side of the sedimentation tank. A drain elbow is fixedly connected to the end of the drain valve.

[0014] Preferably, connecting hinges are symmetrically arranged on one side of the first treatment tank and the second treatment tank. Cleaning chamber doors are rotatably connected to the outside of the two connecting hinges. Cleaning handles are fixedly installed on the outside of the two cleaning chamber doors. Second motor covers are fixedly installed on one side of the top of the first treatment tank and the second treatment tank. A cleaning motor is fixedly installed on one side inside the second motor cover. The output end of the cleaning motor is fixedly connected to a second sprocket drive assembly. Cleaning threaded rods are fixedly installed on one side of the second sprocket drive assembly. Cleaning threaded sleeves are threadedly connected to the outside of the two cleaning threaded rods. A cleaning bracket is fixedly connected between the two cleaning threaded sleeves. A cleaning brush is fixedly connected to the top of the two cleaning brackets. The cleaning brush is in fitting connection with the permeable conveyor belt and the collection protrusions.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: For this treatment and purification equipment for heavy metal-containing groundwater, under the action of gravity, the gravity slider slides inside the cleaning chute. At the same time, while the gravity slider drives the meshing gear to move, by utilizing the meshing connection between the meshing gear and the meshing rack, the meshing gear drives the rotating cleaning roller to rotate, thereby cleaning the impurities on the surface of the filter mesh body. The first treatment tank and the second treatment tank are used to classify and collect the precipitates generated by different metal ions, avoiding secondary pollution to the environment. The cleaning chamber door is opened through the cleaning handle to clean the precipitates inside the first treatment tank and the second treatment tank. The specific content is as follows: 1. By setting up a filtering mechanism, not only can the filter screen body on one side inside the fan-shaped filter tank be used to filter groundwater, filtering out impurities and larger-volume particulate matter in the groundwater. The filtered groundwater is introduced into the sedimentation tank at the bottom through the closed side of the fan-shaped filter tank at the bottom for subsequent treatment. When the filter screen body inside the fan-shaped filter tank becomes blocked, the rotation motor is started to drive the rotating disk and the rotating bracket to rotate, rotating the new fan-shaped filter tank at the bottom to the bottom of the water inlet pipe for subsequent filtration. At the same time, when the fan-shaped filter tank rotates, under the action of gravity, the gravity slider slides inside the cleaning chute. While the gravity slider drives the meshing gear to move, taking advantage of the meshing connection between the meshing gear and the meshing rack, the meshing gear drives the rotating cleaning roller to rotate, thereby cleaning the impurities on the surface of the filter screen body and falling into the sewage trough at the bottom for collection. When the fan-shaped filter tank rotates to the bottom, under the action of gravity, the gravity slider drives the meshing gear and the rotating cleaning roller to move into the fan-shaped filter tank, which will not affect the subsequent filtration of groundwater. When the fan-shaped filter tank cannot be cleaned thoroughly, by pressing the unlocking slider to drive the locking rack to move, taking advantage of the meshing connection between the locking rack and the locking gear, the locking rack drives the locking pin to move. When the locking pin is separated from the rotating bracket, the entire fan-shaped filter tank can be taken out from inside the rotating bracket, thereby cleaning the fan-shaped filter tank. When the rotation motor drives the rotating disk and the rotating bracket to rotate, taking advantage of the engagement connection between the meshing tooth ring and the first locking tooth, the rotating disk and the rotating bracket are rotated in one direction, thereby supporting the rotating disk and the rotating bracket and improving the rotation stability of the rotating disk and the rotating bracket; 2. By setting up a multi-stage treatment mechanism, not only can chemical agents for removing heavy metals in groundwater be put into the sedimentation tank, enabling the same heavy metal ion wastewater to reach the precipitation pH value of the heavy metal, or adjusting the pH value of wastewater containing multiple metal ions in segments to form sediment sludge. The conveying motor drives the first sprocket drive assembly and the drive roller to rotate. Taking advantage of the drive connection between the drive roller, the first auxiliary roller, the second auxiliary roller and the permeable conveyor belt, the permeable conveyor belt drives the collection protrusions to rotate, discharging the sediment sludge from inside the sedimentation tank. The cleaning motor drives the second sprocket drive assembly and the cleaning threaded rod to rotate, causing the cleaning threaded sleeve to drive the cleaning bracket and the cleaning brush to move, thereby cleaning the sediment sludge on the surface of the permeable conveyor belt and the collection protrusions, and classifying and collecting the precipitates generated by different metal ions using the first treatment tank and the second treatment tank, avoiding secondary pollution to the environment. The cleaning box door is opened through the cleaning handle to clean the precipitates inside the first treatment tank and the second treatment tank. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the whole invention; Figure 2 Schematic three-dimensional structure diagram of the filtration mechanism section in the present invention; Figure 3 Schematic three-dimensional structure diagram of the meshing tooth ring in the present invention; Figure 4 Schematic three-dimensional structure diagram of the sector-shaped filter groove in the present invention; Figure 5 Schematic three-dimensional structure diagram of the filter screen body in the present invention; Figure 6 In the present invention Figure 5 Schematic three-dimensional structure diagram of area A; Figure 7 Schematic three-dimensional structure diagram of the locking bracket section in the present invention; Figure 8 Schematic three-dimensional structure diagram of the multi-stage treatment mechanism in the present invention; Figure 9 Schematic three-dimensional structure diagram of the sedimentation tank section in the present invention; Figure 10 Schematic three-dimensional structure diagram of the driving roller and the limiting bracket in the present invention; Figure 11 Schematic three-dimensional structure diagram of the cleaning bracket and the cleaning brush in the present invention.

[0017] In the figure: 1. Filtration mechanism; 101. Filter box; 102. Rotating motor; 103. Rotating disk; 104. Rotating bracket; 105. Meshing tooth ring; 106. Unlocking chute; 107. Locking spring; 108. First locking tooth; 109. Limit baffle; 110. Installation chute; 111. Installation slider; 112. Sector-shaped filter groove; 113. Filter baffle; 114. Filter screen body; 115. Cleaning chute; 116. Gravity slider; 117. Meshing gear; 118. Rotating cleaning roller; 119. Meshing rack; 120. Locking bracket; 121. Locking gear; 122. Locking rack; 123. Unlocking slider; 124. Locking pin; 125. Return spring; 126. Partition board; 127. Sewage groove; 128. Water inlet pipe; 2. Multi-stage treatment mechanism; 201. First treatment box; 202. Second treatment box; 203. Connecting support block; 204. Sedimentation tank; 205. First motor cover; 206. Conveyor motor; 207. First sprocket drive assembly; 208. Driving roller; 209. Limiting bracket; 210. Permeable conveyor belt; 211. Collection protrusion; 212. First auxiliary roller; 213. Second auxiliary roller; 214. Drain valve; 215. Drain elbow; 216. Connecting hinge; 217. Cleaning box door; 218. Cleaning handle; 219. Second motor cover; 220. Cleaning motor; 221. Second sprocket drive assembly; 222. Cleaning threaded rod; 223. Cleaning threaded sleeve; 224. Cleaning bracket; 225. Cleaning brush. Detailed implementation manners

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 11 , the present invention provides a technical solution: a treatment and purification device for heavy metal-containing groundwater, including a filtering mechanism 1 and a water inlet pipe 128 installed on one side of the top of the filtering mechanism 1. A multi-stage treatment mechanism 2 is arranged on one side of the bottom of the filtering mechanism 1, and a drain valve 214 is arranged on the outside of the multi-stage treatment mechanism 2. The filtering mechanism 1 includes a filtering box 101. A rotating motor 102 is fixedly installed on one side of the filtering box 101. Rotating disks 103 are symmetrically and rotatably connected to both sides inside the filtering box 101. A rotating bracket 104 is fixedly installed inside the rotating disk 103. Among them, a meshing gear ring 105 is fixedly installed on the side of the filtering box 101 away from the rotating motor 102. An unlocking chute 106 is opened inside one of the rotating disks 103. Among them, a locking spring 107 is slidably connected inside the unlocking chute 106. The end of the locking spring 107 is rotatably connected to a first locking tooth 108. A limiting baffle 109 is fixedly installed at the end of the rotating disk 103 close to the first locking tooth 108. A plurality of installation chutes 110 are opened inside the rotating bracket 104. Installation sliders 111 are slidably connected inside the installation chutes 110. A sector-shaped filter tank 112 is fixedly installed between the two installation sliders 111. A filter baffle 113 is fixedly installed on one side inside the sector-shaped filter tank 112. A filter screen body 114 is fixedly installed on the side of the sector-shaped filter tank 112 away from the filter baffle 113. It is possible to use the filter screen body 114 on one side inside the sector-shaped filter tank 112 to filter the groundwater, filter out the impurities and larger-volume particulate matters in the groundwater, and the filtered groundwater is introduced into the sedimentation tank 204 at the bottom through the closed side of the sector-shaped filter tank 112 at the bottom for subsequent treatment.

[0020] On both sides of the interior of the sector filter tank 112, cleaning sliding grooves 115 are symmetrically opened. Inside the two cleaning sliding grooves 115, gravity sliders 116 are slidably connected. On the inner sides of the two gravity sliders 116, meshing gears 117 are rotatably connected. A rotating cleaning roller 118 is fixedly connected between the two meshing gears 117. The bottom of the meshing gear 117 is meshed with a meshing rack 119. The meshing racks 119 are symmetrically installed on both sides of the interior of the sector filter tank 112. The end of the mounting slider 111 is fixedly installed with a locking bracket 120. At the central position inside the locking bracket 120, a locking gear 121 is rotatably connected. On both sides of the locking gear 121, locking racks 122 are symmetrically meshed. When the filter net body 114 inside the sector filter tank 112 becomes blocked, start the rotating motor 102 to drive the rotating disc 103 and the rotating bracket 104 to rotate, and rotate the new sector filter tank 112 at the bottom to the bottom of the water inlet pipe 128 for subsequent filtration. At the same time, when the sector filter tank 112 rotates, under the action of gravity, the gravity slider 116 slides inside the cleaning sliding groove 115. At the same time, when the gravity slider 116 drives the meshing gear 117 to move, using the meshing connection between the meshing gear 117 and the meshing rack 119, the meshing gear 117 drives the rotating cleaning roller 118 to rotate, so as to clean the impurities on the surface of the filter net body 114 and fall into the sewage tank 127 at the bottom for collection.

[0021] One end of one side locking rack 122 is fixedly installed with an unlocking slider 123, and the end of the other side locking rack 122 is fixedly connected with a locking pin 124. The ends of the two locking racks 122 are fixedly connected with a return spring 125. A partition plate 126 is fixedly installed at the bottom of the filter tank 101 close to the rotating bracket 104. A sewage tank 127 is fixedly installed on one side of the bottom of the filter tank 101. The water inlet pipe 128 is arranged at the top of the filter tank 101. When the sector filter tank 112 rotates to the bottom, under the action of gravity, the gravity slider 116 drives the meshing gear 117 and the rotating cleaning roller 118 to move into the sector filter tank 112, which will not affect the subsequent filtration of groundwater. When the sector filter tank 112 cannot be cleaned thoroughly, by pressing the unlocking slider 123 to drive the locking rack 122 to move, using the meshing connection between the locking rack 122 and the locking gear 121, the locking rack 122 drives the locking pin 124 to move. When the locking pin 124 is separated from the rotating bracket 104, the entire sector filter tank 112 can be taken out from the inside of the rotating bracket 104, so as to clean the sector filter tank 112. When the rotating motor 102 drives the rotating disc 103 and the rotating bracket 104 to rotate, using the meshing connection between the meshing tooth ring 105 and the first locking tooth 108, the rotating disc 103 and the rotating bracket 104 are rotated in one direction, so as to support the rotating disc 103 and the rotating bracket 104 and improve the rotation stability of the rotating disc 103 and the rotating bracket 104.

[0022] The multi-stage treatment mechanism 2 includes a first treatment tank 201 and a second treatment tank 202. Connecting support blocks 203 are symmetrically installed on both sides of the tops of the first treatment tank 201 and the second treatment tank 202. A sedimentation tank 204 is fixedly installed between the connecting support blocks 203. First motor covers 205 are symmetrically installed on both sides of the sedimentation tank 204. Conveyor motors 206 are fixedly installed at the bottoms of the two first motor covers 205. The output ends of the conveyor motors 206 are fixedly connected to first sprocket drive assemblies 207. Transmission rollers 208 are symmetrically installed up and down on one side of each first sprocket drive assembly 207. Both ends of the transmission rollers 208 are rotatably connected to limit brackets 209. The limit brackets 209 are fixedly connected to the first motor covers 205. A permeable conveyor belt 210 is drivingly connected to the outside of the transmission rollers 208. Collection protrusions 211 are fixedly installed on the surface of the permeable conveyor belt 210. Chemical agents for removing heavy metals in groundwater are put into the interior of the sedimentation tank 204 to make the same heavy metal ion wastewater reach the precipitation pH value of the heavy metal, or the pH value of the wastewater containing multiple metal ions is adjusted in stages to form sediment sludge. The conveyor motors 206 drive the first sprocket drive assemblies 207 and the transmission rollers 208 to rotate. By utilizing the driving connection characteristics between the transmission rollers 208, the first auxiliary roller 212, the second auxiliary roller 213 and the permeable conveyor belt 210, the permeable conveyor belt 210 drives the collection protrusions 211 to rotate, and the sediment sludge is discharged from the interior of the sedimentation tank 204.

[0023] On the inner side of the top of the precipitation tank 204, first auxiliary rollers 212 are symmetrically and rotatably connected. On the inner side of the bottom of the precipitation tank 204, second auxiliary rollers 213 are symmetrically and rotatably connected. Both the first auxiliary rollers 212 and the second auxiliary rollers 213 are drivingly connected to the permeable conveyor belt 210. A drain valve 214 is fixedly installed on one side of the precipitation tank 204. The end of the drain valve 214 is fixedly connected to a drain elbow 215. On one side of both the first treatment tank 201 and the second treatment tank 202, connecting hinges 216 are symmetrically arranged. On the outer sides of the two connecting hinges 216, cleaning chamber doors 217 are rotatably connected. On the outer sides of the two cleaning chamber doors 217, cleaning handles 218 are fixedly installed. On one side of the top of both the first treatment tank 201 and the second treatment tank 202, second motor covers 219 are fixedly installed. On one side inside the second motor cover 219, a cleaning motor 220 is fixedly installed. The output end of the cleaning motor 220 is fixedly connected to a second sprocket drive assembly 221. On one side of the second sprocket drive assembly 221, cleaning threaded rods 222 are fixedly installed. On the outer sides of the two cleaning threaded rods 222, cleaning threaded sleeves 223 are threadedly connected. Between the two cleaning threaded sleeves 223, a cleaning bracket 224 is fixedly connected. On the top of the two cleaning brackets 224, a cleaning brush 225 is fixedly connected. The cleaning brush 225 is in fitting connection with the permeable conveyor belt 210 and the collection protrusions 211. By driving the second sprocket drive assembly 221 and the cleaning threaded rods 222 to rotate through the cleaning motor 220, the cleaning threaded sleeves 223 drive the cleaning bracket 224 and the cleaning brush 225 to move, so as to clean the precipitated sludge on the surfaces of the permeable conveyor belt 210 and the collection protrusions 211, and use the first treatment tank 201 and the second treatment tank 202 to classify and collect the precipitates generated by different metal ions, avoiding secondary pollution to the environment. Open the cleaning chamber door 217 through the cleaning handle 218 to clean the precipitates inside the first treatment tank 201 and the second treatment tank 202.

[0024] Working principle: Before using this treatment and purification equipment for heavy metal-containing groundwater, it is necessary to first check the overall situation of the device to ensure that it can work normally. According to Figure 1 - Figure 11As shown in the figure, first, groundwater is injected into the filter tank 101 through the water inlet pipe 128. The filter screen body 114 on one side inside the sector filter groove 112 is used to filter the groundwater, filtering out impurities and larger-volume particulate matter in the groundwater. The filtered groundwater is introduced into the sedimentation tank 204 at the bottom through the closed side of the sector filter groove 112 at the bottom for subsequent treatment. When the filter screen body 114 inside the sector filter groove 112 becomes blocked, the rotation motor 102 is started to drive the rotating disk 103 and the rotating bracket 104 to rotate, and the new sector filter groove 112 at the bottom is rotated to the bottom of the water inlet pipe 128 for subsequent filtration. At the same time, when the sector filter groove 112 rotates, under the action of gravity, the gravity slider 116 slides inside the cleaning chute 115. At the same time, while the gravity slider 116 drives the meshing gear 117 to move, due to the meshing connection between the meshing gear 117 and the meshing rack 119, the meshing gear 117 drives the rotating cleaning roller 118 to rotate, thereby cleaning the impurities on the surface of the filter screen body 114, and falling into the sewage discharge groove 127 at the bottom for collection.

[0025] Secondly, when the sector filter groove 112 rotates to the bottom, under the action of gravity, the gravity slider 116 drives the meshing gear 117 and the rotating cleaning roller 118 to move into the sector filter groove 112, which will not affect the subsequent filtration of groundwater. When the sector filter groove 112 cannot be cleaned thoroughly, by pressing the unlocking slider 123 to drive the locking rack 122 to move, due to the meshing connection between the locking rack 122 and the locking gear 121, the locking rack 122 drives the locking pin 124 to move. When the locking pin 124 is separated from the rotating bracket 104, the entire sector filter groove 112 can be taken out from the inside of the rotating bracket 104, so as to clean the sector filter groove 112. When the rotation motor 102 drives the rotating disk 103 and the rotating bracket 104 to rotate, due to the meshing connection between the meshing tooth ring 105 and the first locking tooth 108, the rotating disk 103 and the rotating bracket 104 rotate in one direction, thereby supporting the rotating disk 103 and the rotating bracket 104 and improving the rotation stability of the rotating disk 103 and the rotating bracket 104.

[0026] Finally, put chemical agents for removing heavy metals in groundwater into the interior of the precipitation tank 204 to make the wastewater containing the same heavy metal ions reach the precipitation pH value of the heavy metal, or perform segmented pH value adjustment on the wastewater containing multiple metal ions to form precipitated sludge. Drive the first sprocket drive assembly 207 and the drive roller 208 to rotate through the conveyor motor 206. Utilize the characteristics of the drive connection between the drive roller 208, the first auxiliary roller 212, and the second auxiliary roller 213 and the permeable conveyor belt 210 to make the permeable conveyor belt 210 drive the collection protrusions 211 to rotate, and discharge the precipitated sludge from the interior of the precipitation tank 204. Drive the second sprocket drive assembly 221 and the cleaning threaded rod 222 to rotate through the cleaning motor 220, so that the cleaning threaded sleeve 223 drives the cleaning bracket 224 and the cleaning brush 225 to move, thereby cleaning the precipitated sludge on the surfaces of the permeable conveyor belt 210 and the collection protrusions 211, and use the first treatment tank 201 and the second treatment tank 202 to classify and collect the precipitates generated by different metal ions to avoid secondary pollution to the environment. Open the cleaning box door 217 through the cleaning handle 218 to clean the precipitates inside the first treatment tank 201 and the second treatment tank 202.

[0027] 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 perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A treatment and purification device for heavy metal-containing groundwater, comprising a filtration mechanism (1), and a water inlet pipe (128) installed on one side of the top of the filtration mechanism (1); One side of the bottom of the filtration mechanism (1) is provided with a multi-stage treatment mechanism (2), and a drain valve (214) is arranged outside the multi-stage treatment mechanism (2); It is characterized in that It further includes: The filtration mechanism (1) includes a filtration tank (101), a rotation motor (102) is fixedly installed on one side of the filtration tank (101), two sides inside the filtration tank (101) are symmetrically and rotatably connected with rotation disks (103), and a rotation bracket (104) is fixedly installed inside the rotation disks (103); Among them, a meshing gear ring (105) is fixedly installed on the side of the filtration tank (101) away from the rotation motor (102), and an unlocking chute (106) is opened inside one of the rotation disks (103); Among them, a locking spring (107) is slidably connected inside the unlocking chute (106), the end of the locking spring (107) is rotatably connected with a first locking tooth (108), and a limit baffle (109) is fixedly installed at the end of the rotation disk (103) close to the first locking tooth (108).

2. The treatment and purification equipment for heavy metal-containing groundwater according to claim 1, wherein: A number of installation chutes (110) are opened inside the rotation bracket (104), installation sliders (111) are slidably connected inside the installation chutes (110), a sector-shaped filtration groove (112) is fixedly installed between the two installation sliders (111), a filtration baffle (113) is fixedly installed on one side inside the sector-shaped filtration groove (112), a filter mesh body (114) is fixedly installed on the side of the sector-shaped filtration groove (112) away from the filtration baffle (113), and cleaning chutes (115) are symmetrically opened on both sides inside the sector-shaped filtration groove (112).

3. The treatment and purification equipment for heavy metal-containing groundwater according to claim 2, characterized in that: Gravity sliders (116) are slidably connected inside the two cleaning chutes (115), meshing gears (117) are rotatably connected to the inner sides of the two gravity sliders (116), a rotation cleaning roller (118) is fixedly connected between the two meshing gears (117), the bottom of the meshing gear (117) is meshed with a meshing rack (119), and the meshing rack (119) is symmetrically installed on both sides inside the sector-shaped filtration groove (112).

4. The treatment and purification equipment for heavy-metal-containing groundwater according to claim 3, characterized in that: A locking bracket (120) is fixedly installed at the end of the installation slider (111), a locking gear (121) is rotatably connected to the central position inside the locking bracket (120), the two sides of the locking gear (121) are symmetrically meshed with locking racks (122), an unlocking slider (123) is fixedly installed at the end of one of the locking racks (122), a locking pin (124) is fixedly connected to the end of the other locking rack (122), and a return spring (125) is fixedly connected to the ends of the two locking racks (122).

5. A treatment and purification device for heavy metal-containing groundwater according to claim 4, characterized in that: A partition plate (126) is fixedly installed at the bottom of the filter box (101) close to the rotating bracket (104). A sewage discharge tank (127) is fixedly installed on one side of the bottom of the filter box (101). The water inlet pipe (128) is arranged at the top of the filter box (101).

6. The treatment and purification equipment for heavy metal-containing groundwater according to claim 1, characterized in that: The multi-stage treatment mechanism (2) includes a first treatment box (201) and a second treatment box (202). Connecting support blocks (203) are symmetrically installed on both sides of the tops of the first treatment box (201) and the second treatment box (202). A sedimentation tank (204) is fixedly installed between the connecting support blocks (203). First motor covers (205) are symmetrically installed on both sides of the sedimentation tank (204). A conveying motor (206) is fixedly installed at the bottom of each of the two first motor covers (205).

7. A treatment and purification device for heavy metal-containing groundwater according to claim 6, characterized in that: The output end of the conveying motor (206) is fixedly connected to a first sprocket transmission assembly (207). Transmission rollers (208) are symmetrically installed up and down on one side of the first sprocket transmission assembly (207). Both ends of the transmission rollers (208) are rotatably connected to limit brackets (209). The limit brackets (209) are fixedly connected to the first motor covers (205). A permeable conveyor belt (210) is drivingly connected to the outside of the transmission rollers (208).

8. The treatment and purification equipment for heavy metal-containing groundwater according to claim 7, characterized in that: Collection protrusions (211) are fixedly installed on the surface of the permeable conveyor belt (210). First auxiliary rollers (212) are symmetrically rotatably connected to the inner side of the top of the sedimentation tank (204). Second auxiliary rollers (213) are symmetrically rotatably connected to the inner side of the bottom of the sedimentation tank (204). Both the first auxiliary rollers (212) and the second auxiliary rollers (213) are drivingly connected to the permeable conveyor belt (210). A drain valve (214) is fixedly installed on one side of the sedimentation tank (204). The end of the drain valve (214) is fixedly connected to a drain elbow (215).

9. The treatment and purification equipment for heavy metal-containing groundwater according to claim 6, characterized in that: Connecting hinges (216) are symmetrically arranged on one side of each of the first treatment box (201) and the second treatment box (202). Cleaning chamber doors (217) are rotatably connected to the outside of the two connecting hinges (216). Cleaning handles (218) are fixedly installed on the outside of the two cleaning chamber doors (217). Second motor covers (219) are fixedly installed on one side of the tops of the first treatment box (201) and the second treatment box (202). A cleaning motor (220) is fixedly installed on one side inside the second motor cover (219). The output end of the cleaning motor (220) is fixedly connected to a second sprocket transmission assembly (221). Cleaning threaded rods (222) are fixedly installed on one side of the second sprocket transmission assembly (221). Cleaning threaded sleeves (223) are threadedly connected to the outside of the two cleaning threaded rods (222). A cleaning bracket (224) is fixedly connected between the two cleaning threaded sleeves (223). A cleaning brush (225) is fixedly connected to the top of the two cleaning brackets (224). The cleaning brush (225) is in close contact with the permeable conveyor belt (210) and the collection protrusions (211).

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