CN118908316A - Industrial waste water heavy metal ion filters and extraction element - Google Patents

Abstract

The invention discloses a heavy metal ion filtering and extracting device for industrial wastewater, which belongs to the technical field of wastewater treatment and comprises an extracting box body, wherein a filtering frame is arranged on the left side of the upper surface of the extracting box body, a filter screen is connected to the inner wall of the filtering frame, a cleaning mechanism is arranged in the filtering frame, the cleaning mechanism comprises a pushing plate, a mixing stirring mechanism is arranged in the middle of the inner cavity of the extracting box body, the mixing stirring mechanism comprises two groups of rotating rods and a plurality of groups of stirring blades, a cation exchange resin plate is arranged on the right side of the inner cavity of the extracting box body, U-shaped lifting frames are respectively arranged at the bottom ends of the front outer wall and the rear outer wall of the cation exchange resin plate, a lifting unit is arranged between the U-shaped lifting frames and the inner wall of the extracting box body, and a collecting box is arranged on the right side of the upper surface of the extracting box body.

Description

A device for filtering and extracting heavy metal ions from industrial wastewater

Technical Field

The invention relates to the technical field of wastewater treatment, in particular to a device for filtering and extracting heavy metal ions from industrial wastewater.

Background Art

Industrial wastewater refers to wastewater containing various pollutants generated during the production and processing of factories. These pollutants include chemicals, heavy metals, grease, organic matter, etc., which are harmful to the environment and ecology. In the process of industrial wastewater treatment, heavy metal ions need to be filtered and extracted, and heavy metal ion filtration and extraction equipment is required.

Publication number CN218115204U proposes an industrial wastewater heavy metal ion filtration and extraction device, which can facilitate the removal and replacement of the filter plate by hoisting a cylindrical filter plate at the bottom of the water inlet hopper, thereby avoiding clogging of the filter plate pores and improving the filtration efficiency.

When extracting heavy metal ions from industrial wastewater, the above patent generates heat by working the heating plate to evaporate the wastewater, and finally opens the valve to discharge the heavy metal ion impurities. Since there is a lot of industrial wastewater, a large amount of energy is required to heat the heavy metal ion impurities in the wastewater by evaporation, which increases energy consumption and costs, and the treatment effect is average. Therefore, we propose an industrial wastewater heavy metal ion filtration and extraction device.

Summary of the invention

The object of the present invention is to provide a device for filtering and extracting heavy metal ions from industrial wastewater to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A device for filtering and extracting heavy metal ions from industrial wastewater comprises an extraction box, a filter frame connected to the left side of the upper surface of the extraction box is installed, a filter screen is connected to the inner wall of the filter frame, and a cleaning mechanism is arranged in the filter frame, the cleaning mechanism comprises a push plate, and the push plate is attached to the upper surface of the filter screen, a mixing and stirring mechanism is arranged in the middle of the inner cavity of the extraction box, the mixing and stirring mechanism comprises two groups of rotating rods, the bottoms of the two groups of rotating rods are rotatably connected to the inner wall of the bottom end of the extraction box through bearings, and the outer walls of the two groups of rotating rods are connected to multiple groups of stirring blades, a slidably connected cation exchange resin plate is arranged on the right side of the inner cavity of the extraction box, a U-shaped lifting frame is installed at the bottom ends of the front and rear outer walls of the cation exchange resin plate, and a lifting unit is arranged between the U-shaped lifting frame and the inner wall of the extraction box, the top of the cation exchange resin plate passes through the top wall of the extraction box, a collecting box is arranged on the right side of the upper surface of the extraction box and on a side close to the cation exchange resin plate, a scraper plate is installed on the inner wall of the collecting box, and the scraper plate is attached to the outer wall of the cation exchange resin plate, and a drain pipe is arranged at the bottom end of the right outer wall of the extraction box.

Preferably, the open end of the U-shaped lifting frame is in contact with the inner wall of the extraction box, and the lifting unit includes a reduction motor, which is located on the outer wall of the U-shaped lifting frame, and the output end of the reduction motor is connected to a driving shaft, and the bottom end of the driving shaft is rotatably connected to the inner wall of the U-shaped lifting frame through a bearing, and a lifting gear is sleeved on the driving shaft, and the front inner wall and the rear inner wall of the extraction box are provided with multiple groups of tooth grooves, and the multiple groups of tooth grooves are meshed and connected with the lifting gears, and two groups of T-shaped slides are installed on the side of the U-shaped lifting frame close to the inner wall of the extraction box, and the front inner wall and the rear inner wall of the extraction box are provided with T-shaped guide grooves, and the T-shaped guide grooves are slidably connected to the T-shaped slides.

Preferably, both ends of the front and rear outer walls of the cation exchange resin plate are connected with sliding sealing plates, and the sliding sealing plates are L-shaped, and a sealing waterproof shell is provided on the outer side of the reduction motor.

Preferably, the mixing and stirring mechanism also includes a U-shaped frame, which is located on the top of the extraction box, and a servo motor is connected to the middle of the upper surface of the U-shaped frame, the output end of the servo motor is connected to a driving rod, and the bottom of the driving rod is rotatably connected to the upper surface of the extraction box through a bearing, a driving gear is sleeved on the driving rod, and both side walls of the driving gear are meshed with driven gears, and the middle of the lower surfaces of the two groups of driven gears are respectively connected to the tops of the two groups of rotating rods.

Preferably, the cleaning mechanism also includes a fixed box, which is located on the rear outer wall of the filter frame, and a stepper motor is installed on the outer wall of the fixed box, the output end of the stepper motor is connected to a rotating shaft, a rotating gear is sleeved on the rotating shaft, the outer wall of the rotating gear is meshingly connected with a movable tooth plate, and the movable tooth plate passes through both ends of the fixed box, the bottom of the movable tooth plate passes through the rear outer wall of the filter frame, and the bottom of the movable tooth plate is connected to the outer wall of the push plate.

Preferably, the filter screen is movably connected to the inner wall of the filter frame by snap-fitting, and a feed opening is provided on the front side wall of the filter frame. A support plate is provided at the bottom end of the front outer wall of the filter frame, and a collection box is installed on the support plate.

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

1. The present invention filters larger particle impurities or sundries in industrial wastewater through the filter screen in the filter frame. The operation of the servo motor on the mixing and stirring mechanism can drive the driving gear to rotate. Since the driving gear is meshed with the two sets of driven gears, the multiple sets of stirring blades on the two sets of rotating rods rotate. Through the rotation of the multiple sets of stirring blades, the heavy metal ions in the industrial wastewater can be quickly adsorbed by the cation exchange resin plate, thereby improving the processing efficiency of the filtering and extraction device. Through the synchronous operation of the reduction motors on the outer walls of the two sets of U-shaped lifting frames, the lifting gear on the driving shaft can be driven to rotate. Since the lifting gear is meshed with the multiple sets of tooth grooves, the U-shaped lifting frame can move up after the sliding limit of the T-shaped slide seat and the T-shaped guide groove. When the cation exchange resin plate moves up, the fixed scraper plate can scrape off the heavy metals on the surface of the cation exchange resin plate and collect them in the collection box, thereby realizing the rapid extraction of heavy metal ions in industrial wastewater, replacing the traditional method of extracting heavy metal ions using evaporating water, saving energy, reducing costs, and improving processing efficiency.

2. Through the operation of the stepper motor, the rotating gear on the rotating shaft can be driven to rotate. Since the rotating gear is meshed with the moving tooth plate, the moving tooth plate can drive the push plate to move on the filter screen. The movement of the push plate can discharge the larger particle impurities or debris in the industrial wastewater on the filter screen through the discharge port and collect them into the collection box, thereby realizing the rapid collection of impurities filtered from the industrial wastewater and avoiding clogging of the filter screen and affecting the treatment efficiency of the industrial wastewater.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic structural diagram of the present invention;

FIG2 is a schematic diagram of the filter frame structure of the present invention;

FIG3 is a cross-sectional view of the side connection structure between the fixed box and the movable tooth plate of the present invention;

FIG4 is a cross-sectional schematic diagram of the side connection structure of the extraction box and the mixing and stirring mechanism of the present invention;

FIG5 is a schematic cross-sectional view of a top view of the connection structure between the cation exchange resin plate and the extraction box of the present invention.

In the figure: 1. extraction box; 2. filter frame; 3. drain pipe; 4. mixing and stirring mechanism; 400. U-shaped frame; 401. servo motor; 402. driving gear; 403. driven gear; 404. rotating rod; 405. stirring blade; 5. cation exchange resin plate; 6. collecting box; 7. scraper plate; 8. filter screen; 9. discharge port; 10. support plate; 11. collecting box; 12. push plate; 13. fixed box; 14. stepping motor; 15. moving tooth plate; 16. rotating shaft; 17. rotating gear; 18. U-shaped lifting frame; 19. reduction motor; 20. driving shaft; 21. lifting gear; 22. tooth groove; 23. T-shaped guide groove; 24. T-shaped slide seat; 25. sliding sealing plate.

DETAILED DESCRIPTION

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

Embodiment 1:

Please refer to Figures 1-5. The present invention provides a technical solution: an industrial wastewater heavy metal ion filtering and extraction device, including an extraction box 1, a filter frame 2 is installed on the left side of the upper surface of the extraction box 1, and a filter screen 8 is connected to the inner wall of the filter frame 2. A cleaning mechanism is provided in the filter frame 2, and the cleaning mechanism includes a push plate 12, and the push plate 12 is attached to the upper surface of the filter screen 8. A mixing and stirring mechanism 4 is provided in the middle of the inner cavity of the extraction box 1. The mixing and stirring mechanism 4 includes two sets of rotating rods 404. The bottoms of the two sets of rotating rods 404 are rotatably connected to the inner wall of the bottom end of the extraction box 1 through bearings, and the outer surfaces of the two sets of rotating rods 404 are connected to the inner wall of the bottom end of the extraction box 1 through bearings. The walls are connected with multiple groups of stirring blades 405, a slidingly connected cation exchange resin plate 5 is provided on the right side of the inner cavity of the extraction box 1, a U-shaped lifting frame 18 is installed at the bottom ends of the front and rear outer walls of the cation exchange resin plate 5, and a lifting unit is provided between the U-shaped lifting frame 18 and the inner wall of the extraction box 1, the top of the cation exchange resin plate 5 passes through the top wall of the extraction box 1, a collecting box 6 is provided on the right side of the upper surface of the extraction box 1 and close to the cation exchange resin plate 5, a scraper plate 7 is installed on the inner wall of the collecting box 6, and the scraper plate 7 is in contact with the outer wall of the cation exchange resin plate 5, and a drain pipe 3 is installed at the bottom end of the right outer wall of the extraction box 1.

Before use, the electrical ends of all electrical equipment are electrically connected to the electrical ends of the external power supply and the controller through the guide, and the industrial wastewater to be treated is added from the filter frame 2 into the extraction box 1. The larger particles of impurities or debris in the industrial wastewater are filtered through the filter screen 8 on the inner wall of the filter frame 2. The large particles of impurities or debris remain on the filter screen 8. Through the action of the cleaning mechanism, the push plate 12 can be driven to move on the filter screen 8, and the impurities can be pushed to one end of the filter screen 8, which is convenient for the subsequent unified cleaning of the staff. After the filtration, the industrial wastewater enters the extraction box 1, and the mixing and stirring mechanism 4 is started. The two sets of rotating rods 404 and multiple sets of stirring blades 405 of the mixing and stirring mechanism 4 rotate, and the rotation of the multiple sets of stirring blades 405 stirs the industrial wastewater. The industrial wastewater can be fully in contact with the cation exchange resin plate 5, and the heavy metal ions in the industrial wastewater will be adsorbed by the cation exchange resin plate 5. After the industrial wastewater is in contact with the cation exchange resin plate 5 for a period of time, the cation exchange resin plate 5 is moved up by the operation of the lifting unit, and the fixed scraper plate 7 can scrape the heavy metals on the surface of the cation exchange resin plate 5 and collect them into the collection box 6, thereby realizing the rapid extraction of heavy metal ions in the industrial wastewater, replacing the traditional method of using evaporating water to extract heavy metal ions, saving energy, and improving the treatment effect; and through the action of the cleaning mechanism, the rapid collection of impurities filtered from the industrial wastewater is realized, avoiding the clogging of the filter screen and affecting the treatment efficiency of the industrial wastewater, and the drain pipe 3 is used for the discharge of industrial wastewater.

Among them, the open end of the U-shaped lifting frame 18 is fitted with the inner wall of the extraction box 1, and the lifting unit includes a reduction motor 19, which is located on the outer wall of the U-shaped lifting frame 18, and the output end of the reduction motor 19 is connected to a driving shaft 20, and the bottom end of the driving shaft 20 is rotatably connected to the inner wall of the U-shaped lifting frame 18 through a bearing, and a lifting gear 21 is sleeved on the driving shaft 20, and the front inner wall and the rear inner wall of the extraction box 1 are provided with multiple groups of tooth grooves 22, and the multiple groups of tooth grooves 22 are meshed and connected with the lifting gear 21, and two groups of T-shaped slides 24 are installed on one side of the U-shaped lifting frame 18 close to the inner wall of the extraction box 1, and the front inner wall and the rear inner wall of the extraction box 1 are provided with T-shaped guide grooves 23, and the T-shaped guide grooves 23 are slidably connected with the T-shaped slide 24;

The cation exchange resin plate 5 is fixedly connected to the two groups of U-shaped lifting frames 18, and the T-shaped slide 24 is fixedly connected to the U-shaped lifting frame 18. Through the synchronous operation of the reduction motor 19 on the outer wall of the two groups of U-shaped lifting frames 18, the lifting gear 21 on the drive shaft 20 can be driven to rotate forward or reverse. Since the lifting gear 21 is meshed with the multiple groups of tooth grooves 22 opened on the inner wall of the extraction box 1, the U-shaped lifting frame 18 is limited by the sliding of the T-shaped slide 24 and the T-shaped guide groove 23, so that the U-shaped lifting frame 18 moves up and down on the inner wall of the extraction box 1, thereby enabling the cation exchange resin plate 5 to move up and down.

Both ends of the front and rear outer walls of the cation exchange resin plate 5 are connected with sliding sealing plates 25, and the sliding sealing plates 25 are L-shaped, and a sealing waterproof shell is provided on the outside of the reduction motor 19; the sliding sealing plate 25 is fixedly connected to the cation exchange resin plate 5, and the other end of the sliding sealing plate 25 is slidably arranged with the inner wall of the extraction box 1, when the cation exchange resin plate 5 adsorbs heavy metal ions in industrial wastewater, the sliding sealing plate 25 plays a blocking role to prevent water from flowing out of the gap.

The mixing and stirring mechanism 4 also includes a U-shaped frame 400, which is located at the top of the extraction box 1, and a servo motor 401 is connected to the middle of the upper surface of the U-shaped frame 400, and the output end of the servo motor 401 is connected to a driving rod, and the bottom of the driving rod is rotatably connected to the upper surface of the extraction box 1 through a bearing, and a driving gear 402 is sleeved on the driving rod, and both side walls of the driving gear 402 are meshed and connected with driven gears 403, and the middle of the lower surfaces of the two groups of driven gears 403 are respectively connected to the tops of the two groups of rotating rods 404; the operation of the servo motor 401 can drive the driving gear 402 on the driving rod to rotate, because the driving gear 402 is meshed and connected with the two groups of driven gears 403, and the tops of the two groups of rotating rods 404 are respectively fixedly connected to the middle of the lower surfaces of the two groups of driven gears 403, thereby causing the multiple groups of stirring blades 405 on the two groups of rotating rods 404 to rotate, thereby achieving mixed and stirring treatment of the wastewater.

The cleaning mechanism also includes a fixed box 13, which is located at the rear outer wall of the filter frame 2, and a stepper motor 14 is installed on the outer wall of the fixed box 13, and a rotating shaft 16 is connected to the output end of the stepper motor 14, and a rotating gear 17 is sleeved on the rotating shaft 16. The outer wall of the rotating gear 17 is meshingly connected with a moving tooth plate 15, and the moving tooth plate 15 passes through the two ends of the fixed box 13, and the bottom of the moving tooth plate 15 passes through the rear outer wall of the filter frame 2, and the bottom of the moving tooth plate 15 is connected to the outer wall of the push plate 12; the fixed box 13 is fixedly connected to the rear side wall of the filter frame 2, and the operation of the stepper motor 14 can drive the rotating gear 17 on the rotating shaft 16 to rotate. Since the rotating gear 17 is meshingly connected to the moving tooth plate 15, and the moving tooth plate 15 is slidingly arranged with the fixed box 13, the movement of the moving tooth plate 15 can drive the push plate 12 to move on the top of the filter screen 8, and the movement of the push plate 12 realizes the push cleaning of impurities on the filter screen 8.

Embodiment 2:

2 , this embodiment is different from the first embodiment in that the filter screen 8 is movably connected to the inner wall of the filter frame 2 by a snap-fitting manner, and a discharge port 9 is provided on the front side wall of the filter frame 2, a support plate 10 is provided at the bottom end of the front outer wall of the filter frame 2, and a collecting box 11 is installed on the support plate 10; the snap-fitted filter screen 8 can be easily disassembled and assembled, which is convenient for later maintenance and replacement. During the continuous pushing of the pushing plate 12, the impurities on the filter screen 8 will eventually be collected into the collecting box 11 through the discharge port 9, thereby realizing the rapid collection of impurities filtered from industrial wastewater and avoiding clogging of the filter screen 8 and affecting the treatment efficiency of industrial wastewater.

Working principle: Before using the present invention, first, the electrical ends of each electrical device are electrically connected to the electrical ends of the external power supply and the controller through the guide, and the industrial wastewater to be treated is added from the filter frame 2 to the extraction box 1. The larger particles of impurities or debris in the industrial wastewater are filtered through the filter screen 8 on the inner wall of the filter frame 2. The large particles of impurities or debris remain on the filter screen 8. When the impurities on the filter screen 8 need to be cleaned, the stepper motor 14 can drive the rotating gear 17 on the rotating shaft 16 to rotate. Since the rotating gear 17 is meshed with the moving tooth plate 15, and the moving tooth plate 15 is slidably connected with the fixed box 13, The movement of the movable tooth plate 15 can drive the push plate 12 to move on the top of the filter screen 8. The movement of the push plate 12 realizes the pushing and cleaning of impurities on the filter screen 8. During the continuous pushing of the push plate 12, the impurities on the filter screen 8 will finally be collected into the collection box 11 through the discharge port 9, thereby realizing the rapid collection of impurities filtered from industrial wastewater and avoiding the blockage of the filter screen 8 and affecting the treatment efficiency of industrial wastewater. The wastewater after filtration remains in the extraction box 1, and the servo motor 401 on the mixing and stirring mechanism 4 is started at this time. The operation of the servo motor 401 can drive the active gear 402 on the driving rod to rotate. The driven gear 402 is meshed with the two sets of driven gears 403, and the tops of the two sets of rotating rods 404 are respectively fixedly connected to the middle of the lower surfaces of the two sets of driven gears 403, so that the multiple sets of stirring blades 405 on the two sets of rotating rods 404 rotate to achieve mixed stirring treatment of the wastewater, so that the industrial wastewater can fully contact with the cation exchange resin plate 5, and the heavy metal ions in the industrial wastewater will be adsorbed by the cation exchange resin plate 5. After the industrial wastewater contacts the cation exchange resin plate 5 for a period of time, the lifting unit is started, and the reduction motor 19 on the outer wall of the two sets of U-shaped lifting frames 18 works synchronously, which can drive the driving shaft 20 The lifting gear 21 rotates forward or reversely. Since the lifting gear 21 is meshed with the multiple tooth grooves 22 opened on the inner wall of the extraction box 1, the U-shaped lifting frame 18 moves up and down on the inner wall of the extraction box 1 after sliding limit through the T-shaped slide 24 and the T-shaped guide groove 23, so that the cation exchange resin plate 5 can move up, and the fixed scraper plate 7 can scrape the heavy metals on the surface of the cation exchange resin plate 5 and collect them into the collection box 6, thereby realizing the rapid extraction of heavy metal ions in industrial wastewater, replacing the traditional method of using evaporating water to extract heavy metal ions, saving energy and improving treatment efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides an industrial waste water heavy metal ion filters and extraction element, includes extraction box (1), its characterized in that: the utility model discloses a cation exchange resin box, including extracting box (1), filtering frame (2) that the upper surface left side of extracting box (1) installed the intercommunication and setting, filtering frame (2)'s inner wall is connected with filter screen (8), and is equipped with clearance mechanism in filtering frame (2), clearance mechanism includes pushing away flitch (12), pushing away flitch (12) laminating at filtering screen (8)'s upper surface, the inner chamber middle part of extracting box (1) is equipped with mixed rabbling mechanism (4), mixed rabbling mechanism (4) include two sets of bull stick (404), the bottom of two sets of bull stick (404) all rotates through bearing and extracting box (1) bottom inner wall to be connected, and the outer wall of two sets of bull stick (404) all is connected with multiunit stirring leaf (405), the inner chamber right side of extracting box (1) is equipped with sliding connection's cation exchange resin board (5), U type lifting frame (18) are all installed to outer wall bottom around cation exchange resin board (5), and are equipped with lifting unit between the inner wall of extracting box (1), cation exchange resin board (5) runs through extracting box (6) top wall (6) on one side of extracting box (1), and scraping plate (7) is attached to the outer wall of cation exchange resin plate (5), drain pipe (3) is installed to the right side outer wall bottom of extracting box (1).

2. The industrial wastewater heavy metal ion filtering and extracting device according to claim 1, wherein: the opening end of the U-shaped lifting frame (18) is attached to the inner wall of the extraction box body (1), the lifting unit comprises a gear motor (19), the gear motor (19) is located on the outer side wall of the U-shaped lifting frame (18), the output end of the gear motor (19) is connected with a driving shaft (20), and the bottom end of the driving shaft (20) is rotatably connected with the inner wall of the U-shaped lifting frame (18) through a bearing.

3. The industrial wastewater heavy metal ion filtering and extracting device according to claim 2, wherein: lifting gear (21) is sleeved on driving shaft (20), multiunit tooth groove (22) have all been seted up to front side inner wall, rear side inner wall of extracting box (1), and multiunit tooth groove (22) are connected with lifting gear (21) meshing, two sets of T type slide (24) are installed to the one side that U type lifting frame (18) are close to the inner wall of extracting box (1), T type guide way (23) have all been seted up to front side inner wall, rear side inner wall of extracting box (1), and T type guide way (23) and T type slide (24) sliding connection.

4. The industrial wastewater heavy metal ion filtering and extracting device according to claim 2, wherein: the cation exchange resin plate (5) is characterized in that two ends of the front outer wall and the rear outer wall of the cation exchange resin plate are connected with sliding sealing plates (25), the sliding sealing plates (25) are L-shaped, and a sealing waterproof shell is arranged on the outer side of the gear motor (19).

5. The industrial wastewater heavy metal ion filtering and extracting device according to claim 1, wherein: the mixing stirring mechanism (4) further comprises a U-shaped frame (400), the U-shaped frame (400) is located at the top of the extraction box body (1), a servo motor (401) is connected to the middle of the upper surface of the U-shaped frame (400), a driving rod is connected to the output end of the servo motor (401), the bottom of the driving rod is rotatably connected with the upper surface of the extraction box body (1) through a bearing, a driving gear (402) is sleeved on the driving rod, driven gears (403) are connected to the two side walls of the driving gear (402) in a meshed mode, and the middle of the lower surfaces of the two groups of driven gears (403) are connected with the tops of two groups of rotating rods (404) respectively.

6. The industrial wastewater heavy metal ion filtering and extracting device according to claim 1, wherein: the cleaning mechanism further comprises a fixed box (13), the fixed box (13) is located on the outer wall of the rear side of the filter frame (2), a stepping motor (14) is installed on the outer wall of the fixed box (13), the output end of the stepping motor (14) is connected with a rotating shaft (16), and a rotating gear (17) is sleeved on the rotating shaft (16).

7. The industrial wastewater heavy metal ion filtering and extracting device according to claim 6, wherein: the outer wall meshing of rotation gear (17) is connected with and removes pinion rack (15), and removes pinion rack (15) and run through the both ends of fixed box (13), the bottom of removing pinion rack (15) is passed through the rear side outer wall of filter frame (2), and the bottom of removing pinion rack (15) is connected with the outer wall of pushing away flitch (12).

8. The industrial wastewater heavy metal ion filtering and extracting device according to claim 1, wherein: the filter screen (8) is movably connected with the inner wall of the filter frame (2) in a clamping manner, a feed opening (9) is formed in the front side wall of the filter frame (2), a supporting plate (10) is arranged at the bottom end of the outer wall of the front side of the filter frame (2), and a collecting box (11) is arranged on the supporting plate (10).