Concentrating and filtering device for heavy metal sewage treatment

Abstract

The invention relates to the related technical field of sewage treatment, in particular to a concentration and filtration device for heavy metal sewage treatment, which comprises a first filtration mechanism, a second filtration mechanism and a collection mechanism, the first filtering mechanism comprises a mixing box and an arc-shaped filtering plate, a mixing assembly and a cleaning assembly are arranged in the mixing box, and a sliding pin can be driven to slide in an arc-shaped sliding groove of an arc-shaped scraping plate in a reciprocating mode under the action of a connecting plate and an inclined plate while mixing of sewage and a sewage treatment agent is achieved through a rotatably-arranged mixing shaft; an arc-shaped scraping plate is driven to swing in a reciprocating mode, the effect of scraping impurities left on an arc-shaped filtering plate is achieved, and then the effects of prolonging the service life of the arc-shaped filtering plate and prolonging the service life of the arc-shaped filtering plate are achieved; the problems that in the using process of a traditional concentrating and filtering device for heavy metal sewage treatment, adsorption saturation of a filtering layer is too fast, and frequent replacement is needed are solved.

Description

Technical Field

[0001] The invention relates to the technical field related to sewage treatment, and more specifically to a concentration and filtering device for heavy metal sewage treatment. Background Art

[0002] Heavy metal wastewater treatment refers to the process of purifying the heavy metals contained in the wastewater to meet the water quality requirements for drainage to a certain water body or reuse. Heavy metal wastewater is one of the most serious industrial wastewaters that pollutes the environment and is the most harmful to humans. Heavy metal wastewater is generated in many production processes in industries such as mining, machinery manufacturing, chemical industry, electronics and instrumentation.

[0003] During the use of traditional concentration and filtration devices used for heavy metal wastewater treatment, the filter layer becomes saturated too quickly due to adsorption, and there is a problem of needing frequent replacement. Summary of the invention

[0004] The object of the present invention is to provide a concentration and filtration device for heavy metal wastewater treatment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a concentration and filtration device for heavy metal wastewater treatment, comprising a first filtration mechanism, a second filtration mechanism and a collection mechanism; The first filtering mechanism comprises a mixing box and an arc-shaped filter plate, the water inlet of the mixing box is connected to the water inlet pipe, the mixing box is connected to the second filtering mechanism through the first connecting pipe, the water outlet of the mixing box is provided with an arc-shaped filter plate, the arc-shaped filter plate is used to filter large particles of impurities, a mixing component and a cleaning component are provided in the mixing box, the mixing component comprises a mixing shaft, the end of the mixing shaft is rotatably connected to the mixing box, and the sewage and the sewage treatment agent are mixed by the rotation of the mixing shaft, the cleaning component comprises an arc-shaped scraper, an inclined plate, a connecting plate, and a sliding pin, the connecting plate The end of the mixing shaft away from the mixing box is connected, and one end of the connecting plate away from the mixing shaft is connected to the inclined plate, the inclined plate is inclined toward the side close to the mixing shaft, and a sliding pin is provided on the side of the inclined plate away from the mixing shaft, and the sliding pin is slidably hinged with the arc-shaped slide groove provided on the shell wall of the arc-shaped scraper, the arc-shaped scraper and the arc-shaped filter plate are arranged concentrically, and the end of the arc-shaped scraper and the shell wall of the arc-shaped filter plate are arranged for sliding friction, and the two ends of the arc-shaped scraper are respectively rotatably connected to the mixing box through connecting rods, and the two connecting rods and the mixing shaft are in the same horizontal plane, and the mixing shaft is also used to drive the arc-shaped scraper to swing back and forth during the rotation process; The second filtering mechanism is used to filter small particles of heavy metal impurities, and the water inlet of the second filtering mechanism is connected to the first connecting pipe; The collecting mechanism is used to collect sewage filtered by the second filtering mechanism, and the water inlet of the collecting mechanism is connected to the water outlet of the second filtering mechanism.

[0006] A further technical solution of the present application is as follows: the mixing assembly further comprises mixing rods, a plurality of mixing rods are arranged at intervals, ends of the plurality of mixing rods are respectively fixedly mounted on a mixing shaft, and the mixing rods are used to mix sewage.

[0007] A further technical solution of the present application is: the second filtering mechanism includes a filter box, a first filter plate, a second filter plate and a third filter plate, the water inlet of the filter box is connected to the first connecting pipe, the water outlet of the filter box is connected to the water inlet of the collecting mechanism, and the first filter plate, the second filter plate and the third filter plate are sequentially arranged in the filter box along the sewage flow direction, and the filter apertures of the first filter plate, the second filter plate and the third filter plate decrease sequentially.

[0008] A further technical solution of the present application is as follows: the collecting mechanism comprises a collecting box, the collecting box is connected to the water outlet of the filtering box via a second connecting pipe, and the collecting box is used to store sewage filtered by the first filtering mechanism and the second filtering mechanism.

[0009] A further technical solution of the present application is: the collecting mechanism also includes a sealing plate and a guide rod, the sealing plate is arranged in the collecting box, and the outer wall of the sealing plate is slidably connected to the collecting box, the sealing plate is also sleeved on the periphery of the guide rod and slidably connected to the guide rod, the guide rod is installed on the collecting box, and the sealing plate is used to seal the inside of the collecting box.

[0010] A further technical solution of the present application is: the second connecting pipe is a three-way structure, one end of the second connecting pipe is connected to the collection box, and the other two ends of the second connecting pipe are respectively installed with a second one-way valve and a first one-way valve, the conduction directions of the second one-way valve and the first one-way valve are opposite, and the end of the second connecting pipe installed with the first one-way valve is connected to the water outlet of the filter box.

[0011] A further technical solution of the present application is as follows: the sealing plate is also sleeved on the periphery of the screw rod and is threadedly connected to the screw rod, and the screw rod is rotatably arranged.

[0012] A further technical solution of the present application is: the screw rod is driven to rotate by a driving assembly, and the driving assembly includes a motor, a motor coupling, a driving gear and a driven gear. The driving gear and the driven gear are meshed and connected, and the driving gear and the driven gear are respectively fixedly sleeved on the periphery of the motor coupling and the screw rod, and the motor coupling is connected to the output end of the motor.

[0013] A further technical solution of the present application is: the screw rod and the mixing shaft are connected by a linkage assembly, the linkage assembly includes a pulley and a synchronous belt, two pulleys are provided, the two pulleys are respectively fixedly sleeved on the periphery of the screw rod and the mixing shaft, the two pulleys are frictionally transmitted by the synchronous belt, and the two ends of the synchronous belt are respectively sleeved on the periphery of different pulleys.

[0014] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention arranges a mixing component and a cleaning component in the mixing box, so that the rotating mixing shaft can mix the sewage and the sewage treatment agent, and under the action of the connecting plate and the inclined plate, the sliding pin can be driven to slide back and forth in the arc-shaped slide groove of the arc-shaped scraper, thereby driving the arc-shaped scraper to swing back and forth, and scraping off the impurities retained on the arc-shaped filter plate, so that the small-particle heavy metal and sewage mixture can flow to the second filtering mechanism, thereby extending the usable time of the arc-shaped filter plate and improving the service life of the arc-shaped filter plate; and solves the problem that the filter layer of the traditional concentration and filtration device for heavy metal sewage treatment is saturated too quickly during use, and needs to be frequently replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A partial cross-sectional view of a concentration and filtration device for heavy metal wastewater treatment provided by the present invention; Figure 2 A three-dimensional schematic diagram of the internal structure of the mixing box provided by the present invention; Figure 3 for Figure 2 A partial enlarged schematic diagram in the middle; Figure 4 A three-dimensional schematic diagram of the cleaning component provided by the present invention.

[0016] Explanation of the symbols in the schematic diagram: 1. Collecting box; 2. Guide rod; 3. Sealing plate; 4. Motor; 5. Motor coupling; 6. Driving gear; 7. Driven gear; 8. Pulley; 9. Screw rod; 10. Synchronous belt; 11. First connecting pipe; 12. Mixing box; 13. Mixing shaft; 14. Mixing rod; 15. Arc scraper; 16. Inclined plate; 17. Sliding pin; 18. Connecting plate; 19. Arc filter plate; 20. Water outlet; 21. Filter box; 22. First filter plate; 23. Second filter plate; 24. Third filter plate; 25. Second connecting pipe; 26. Connecting rod; 27. Arc chute; 28. Water inlet pipe; 29. ​​First one-way valve; 30. Second one-way valve. DETAILED DESCRIPTION

[0017] 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. The present invention is further described below in combination with the embodiments.

[0018] See also Figure 1 - Figure 4 , In one embodiment of the present application, a concentration and filtration device for heavy metal wastewater treatment includes a first filtration mechanism, a second filtration mechanism and a collection mechanism; The first filtering mechanism includes a mixing box 12 and an arc-shaped filter plate 19. The water inlet of the mixing box 12 is connected to the water inlet pipe 28. The mixing box 12 is connected to the second filtering mechanism through the first connecting pipe 11. The water outlet 20 of the mixing box 12 is provided with an arc-shaped filter plate 19, and the arc-shaped filter plate 19 is used to filter large particles of impurities. A mixing component and a cleaning component are provided in the mixing box 12. The mixing component includes a mixing shaft 13. The end of the mixing shaft 13 is rotatably connected to the mixing box 12. The sewage and the sewage treatment agent are mixed by the rotation of the mixing shaft 13. The cleaning component includes an arc-shaped scraper 15, an inclined plate 16, a connecting plate 18, and a sliding pin 17. The connecting plate 18 is connected to the mixing shaft 13 is connected to the end of the mixing box 12, one end of the connecting plate 18 away from the mixing shaft 13 is connected to the inclined plate 16, the inclined plate 16 is inclined toward the side close to the mixing shaft 13, and the side of the inclined plate 16 away from the mixing shaft 13 is provided with a sliding pin 17, the sliding pin 17 is slidably hinged with the arc-shaped slide groove 27 provided on the shell wall of the arc-shaped scraper 15, the arc-shaped scraper 15 is arranged concentrically with the arc-shaped filter plate 19, and the end of the arc-shaped scraper 15 is arranged with sliding friction with the shell wall of the arc-shaped filter plate 19, the two ends of the arc-shaped scraper 15 are respectively rotatably connected to the mixing box 12 through the connecting rod 26, the two connecting rods 26 and the mixing shaft 13 are all in the same horizontal plane, and the mixing shaft 13 is also used to drive the arc-shaped scraper 15 to swing back and forth during the rotation process; The second filtering mechanism is used to filter small particles of heavy metal impurities, and the water inlet of the second filtering mechanism is connected to the first connecting pipe 11; The collecting mechanism is used to collect sewage filtered by the second filtering mechanism, and the water inlet of the collecting mechanism is connected to the water outlet of the second filtering mechanism.

[0019] In this embodiment, the mixing assembly further includes mixing rods 14. The mixing rods 14 are arranged in multiple groups at intervals. The ends of the multiple mixing rods 14 are respectively fixedly mounted on the mixing shaft 13. The mixing rods 14 are used to mix sewage.

[0020] In one case of the present embodiment, sewage containing heavy metals and sewage treatment agent are put into the mixing box 12, and the mixing shaft 13 is rotated to make the mixing rod 14 mix the sewage treatment agent with the sewage. The large particle impurities can be filtered out through the action of the arc filter plate 19. During the rotation of the mixing shaft 13, the sliding pin 17 is driven to slide back and forth in the arc slide groove 27 of the arc scraper 15 through the action of the connecting plate 18 and the inclined plate 16, so as to drive the arc scraper 15 to swing back and forth, and scrape off the impurities retained on the arc filter plate 19, so that the small particle heavy metal and sewage mixture can flow to the second filtering mechanism, thereby extending the usable time of the arc filter plate 19 and improving the service life of the arc filter plate 19.

[0021] See also Figure 1 As a preferred embodiment of the present application, the second filtering mechanism includes a filter box 21, a first filter plate 22, a second filter plate 23 and a third filter plate 24, the water inlet of the filter box 21 is connected to the first connecting pipe 11, the water outlet of the filter box 21 is connected to the water inlet of the collecting mechanism, and the first filter plate 22, the second filter plate 23 and the third filter plate 24 are sequentially arranged in the filter box 21 along the sewage flow direction, and the filter apertures of the first filter plate 22, the second filter plate 23 and the third filter plate 24 decrease sequentially.

[0022] In one case of this embodiment, the sewage filtered by the first filter mechanism comes into the filter box 21, and the sewage flows through the first filter plate 22, the second filter plate 23 and the third filter plate 24 in sequence. The first filter plate 22, the second filter plate 23 and the third filter plate 24 adsorb the heavy metals in the sewage, thereby filtering the heavy metals.

[0023] It is necessary to explain that the arc filter plate 19, the first filter plate 22, the second filter plate 23 and the third filter plate 24 are all existing technologies, the difference lies in the different filter apertures. In actual application, other materials that can separate sewage from heavy metals can also be used instead, and this embodiment is not specifically limited here.

[0024] See also Figure 1 As a preferred embodiment of the present application, the collecting mechanism includes a collecting box 1, which is connected to the water outlet of the filtering box 21 through a second connecting pipe 25, and the collecting box 1 is used to store sewage filtered by the first filtering mechanism and the second filtering mechanism.

[0025] In one case of this embodiment, the collecting mechanism further includes a sealing plate 3 and a guide rod 2, wherein the sealing plate 3 is arranged in the collecting box 1, and the outer wall of the sealing plate 3 is slidably connected to the collecting box 1, the sealing plate 3 is also sleeved on the periphery of the guide rod 2 and slidably connected to the guide rod 2, the guide rod 2 is installed on the collecting box 1, and the sealing plate 3 is used to seal the interior of the collecting box 1.

[0026] In actual application, the sealing plate 3 moves in a direction away from the second connecting pipe 25, so that the sewage after the heavy metals are filtered by the second filtering mechanism can be pumped into the collection box 1 for collection. In addition, the sewage after the large particles of impurities are filtered by the arc filter plate 19 can also be pumped into the filter box 21.

[0027] Preferably, the second connecting pipe 25 is a three-way structure, one end of the second connecting pipe 25 is connected to the collecting box 1, and the other two ends of the second connecting pipe 25 are respectively installed with a second one-way valve 30 and a first one-way valve 29, the conduction directions of the second one-way valve 30 and the first one-way valve 29 are opposite, the end of the second connecting pipe 25 installed with the first one-way valve 29 is connected to the water outlet of the filter box 21, and the end of the second connecting pipe 25 installed with the second one-way valve 30 is connected to the sewage storage device. This embodiment does not limit the sewage storage device, and it can be a storage tank or other devices with a storage function.

[0028] In this embodiment, the first one-way valve 29 has the function of conducting from the filter box 21 to the channel collection box 1. The second one-way valve 30 and the first one-way valve 29 with opposite conducting directions are arranged to ensure that the sealing plate 3 is connected to the channel collection box 1. Figure 1 In the process of rising in the direction of the mixing box 12, the sewage in the mixing box 12 can be pumped into the collecting box 1, and the sealing plate 3 can be ensured to be Figure 1 During the downward movement in the direction of , the sewage collected in the collecting box 1 can be pressed to the sewage storage device.

[0029] See also Figure 1 As a preferred embodiment of the present application, the sealing plate 3 is also sleeved on the periphery of the screw rod 9 and is threadedly connected to the screw rod 9, and the screw rod 9 is rotatably arranged.

[0030] In one case of this embodiment, the screw rod 9 is driven to rotate by a driving assembly, and the driving assembly includes a motor 4, a motor coupling 5, a driving gear 6 and a driven gear 7. The driving gear 6 and the driven gear 7 are meshingly connected, and the driving gear 6 and the driven gear 7 are fixedly sleeved on the periphery of the motor coupling 5 and the screw rod 9 respectively, and the motor coupling 5 is connected to the output end of the motor 4.

[0031] Preferably, the screw rod 9 is connected to the mixing shaft 13 via a linkage assembly, which includes a pulley 8 and a synchronous belt 10. Two pulleys 8 are provided, and the two pulleys 8 are respectively fixedly sleeved on the periphery of the screw rod 9 and the mixing shaft 13. The two pulleys 8 are frictionally transmitted by the synchronous belt 10, wherein the two ends of the synchronous belt 10 are respectively sleeved on the peripheries of different pulleys 8.

[0032] In this embodiment, when the motor 4 drives the motor coupling 5 to rotate forward and the motor coupling 5 and the driving gear 6 transmission screw 9 rotate backward, the sealing plate 3 moves linearly in the direction away from the second connecting pipe 25, and the sewage filtered by the arc filter plate 19 can be pumped into the filter box 21, and the sewage filtered by the filter box 21 can be pumped into the collection box 1; when the motor 4 drives the motor coupling 5 to rotate backward and the motor coupling 5 and the driving gear 6 transmission screw 9 rotate forward, the sealing plate 3 moves linearly in the direction close to the second connecting pipe 25, and the sewage collected in the collection box 1 can be pressed into the sewage storage device; the screw 9 drives the mixing shaft 13 to rotate synchronously in the same direction through the synchronous belt 10, and the three tasks of filtering sewage, cleaning the arc filter plate 19 and collecting sewage are realized by the motor 4 driving the motor coupling 5 to rotate backward, which plays a role in saving driving source expenditure.

[0033] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concentration and filtration device for heavy metal wastewater treatment, characterized in that: It includes a first filtering mechanism, a second filtering mechanism and a collecting mechanism; The first filtering mechanism comprises a mixing box (12) and an arc-shaped filter plate (19); the water inlet of the mixing box (12) is connected to the water inlet pipe (28); the mixing box (12) is connected to the second filtering mechanism via a first connecting pipe (11); a curved filter plate (19) with an arc structure is provided at the water outlet (20) of the mixing box (12); the curved filter plate (19) is used to filter large particles of impurities; a mixing component and a cleaning component are provided in the mixing box (12); the mixing component comprises a mixing shaft (13); an end of the mixing shaft (13) is rotatably connected to the mixing box (12); the sewage and the sewage treatment agent are mixed by the rotation of the mixing shaft (13); the cleaning component comprises an arc-shaped scraper (15), an inclined plate (16), a connecting plate (18), and a sliding pin (17); the connecting plate (18) is connected to the mixing shaft (13) The end of the connecting plate (18) away from the mixing box (12) is connected, and one end of the connecting plate (18) away from the mixing shaft (13) is connected to the inclined plate (16), the inclined plate (16) is inclined toward the side close to the mixing shaft (13), and a sliding pin (17) is provided on the side of the inclined plate (16) away from the mixing shaft (13), and the sliding pin (17) is slidably hinged with an arc-shaped sliding groove (27) provided on the shell wall of the arc-shaped scraper (15), the arc-shaped scraper (15) and the arc-shaped filter plate (19) are arranged concentrically, and the end of the arc-shaped scraper (15) and the shell wall of the arc-shaped filter plate (19) are arranged in a sliding frictional manner, and the two ends of the arc-shaped scraper (15) are rotatably connected to the mixing box (12) through connecting rods (26), the two connecting rods (26) and the mixing shaft (13) are all in the same horizontal plane, and the mixing shaft (13) is also used to drive the arc-shaped scraper (15) to swing back and forth during the rotation process; The second filtering mechanism is used to filter small particles of heavy metal impurities, and the water inlet of the second filtering mechanism is connected to the first connecting pipe (11); The collecting mechanism is used to collect sewage filtered by the second filtering mechanism, and the water inlet of the collecting mechanism is connected to the water outlet of the second filtering mechanism.

2. A concentration and filtration device for heavy metal wastewater treatment according to claim 1, characterized in that: The second filtering mechanism comprises a filter box (21), a first filter plate (22), a second filter plate (23) and a third filter plate (24); the water inlet of the filter box (21) is connected to the first connecting pipe (11); the water outlet of the filter box (21) is connected to the water inlet of the collecting mechanism; the first filter plate (22), the second filter plate (23) and the third filter plate (24) are arranged in sequence in the filter box (21) along the flow direction of sewage; the filter apertures of the first filter plate (22), the second filter plate (23) and the third filter plate (24) decrease in sequence.

3. A concentration and filtration device for heavy metal wastewater treatment according to claim 1 or 2, characterized in that: The collecting mechanism comprises a collecting box (1), the collecting box (1) being connected to a water outlet of a filtering box (21) via a second connecting pipe (25), and the collecting box (1) being used to store sewage filtered by the first filtering mechanism and the second filtering mechanism.

4. A concentration and filtration device for heavy metal wastewater treatment according to claim 3, characterized in that: The collection mechanism further comprises a sealing plate (3) and a guide rod (2); the sealing plate (3) is arranged in the collection box (1), and the outer wall of the sealing plate (3) is slidably connected to the collection box (1); the sealing plate (3) is also sleeved on the outer periphery of the guide rod (2) and slidably connected to the guide rod (2); the guide rod (2) is mounted on the collection box (1); and the sealing plate (3) is used to seal the interior of the collection box (1).

5. A concentration and filtration device for heavy metal wastewater treatment according to claim 4, characterized in that: The second connecting pipe (25) is a three-way structure, one end of the second connecting pipe (25) is connected to the collection box (1), and the other two ends of the second connecting pipe (25) are respectively installed with a second one-way valve (30) and a first one-way valve (29), the conduction directions of the second one-way valve (30) and the first one-way valve (29) are opposite, and the end of the second connecting pipe (25) installed with the first one-way valve (29) is connected to the water outlet of the filter box (21).

6. A concentration and filtration device for heavy metal wastewater treatment according to claim 5, characterized in that: The sealing plate (3) is also sleeved on the outer periphery of the screw rod (9) and is threadedly connected to the screw rod (9); the screw rod (9) is rotatably arranged.

7. A concentration and filtration device for heavy metal wastewater treatment according to claim 6, characterized in that: The screw rod (9) is driven to rotate by a driving assembly, wherein the driving assembly comprises a motor (4), a motor coupling shaft (5), a driving gear (6) and a driven gear (7), wherein the driving gear (6) and the driven gear (7) are meshingly connected, and the driving gear (6) and the driven gear (7) are respectively fixedly sleeved on the periphery of the motor coupling shaft (5) and the screw rod (9), and the motor coupling shaft (5) is connected to the output end of the motor (4).

8. The concentration and filtration device for heavy metal wastewater treatment according to claim 6, characterized in that: The screw rod (9) and the mixing shaft (13) are connected via a linkage assembly, wherein the linkage assembly comprises a pulley (8) and a synchronous belt (10), wherein two pulleys (8) are provided, wherein the two pulleys (8) are respectively fixedly sleeved on the outer peripheries of the screw rod (9) and the mixing shaft (13), and friction transmission is performed between the two pulleys (8) via the synchronous belt (10), wherein the two ends of the synchronous belt (10) are respectively sleeved on the outer peripheries of different pulleys (8).

9. The concentration and filtration device for heavy metal wastewater treatment according to claim 1, characterized in that: The mixing assembly further comprises mixing rods (14), wherein a plurality of mixing rods (14) are arranged at intervals, and ends of the plurality of mixing rods (14) are respectively fixedly mounted on the mixing shaft (13), and the mixing rods (14) are used to mix sewage.

Images