Electrodialysis apparatus for wastewater treatment

Abstract

The application discloses to the technical field of wastewater treatment, specifically to a kind of wastewater treatment with electrodialysis equipment, including wastewater electrodialysis soft water tank, plugging cleaning component and disturbance component, the upper end of the wastewater electrodialysis soft water tank is equipped with end cap, before wastewater enters electrodialysis membrane group, first through wastewater electrodialysis soft water tank to carry out calcium, magnesium and other hardness ion treatment, after wastewater enters wastewater electrodialysis soft water tank, it is filtered and distributed by the distribution plate with filter component, so that wastewater can be evenly and cleanly sprayed on adsorption resin, improve the contact effect of adsorption resin, then by setting plugging cleaning component below distribution plate, for the automatic cleaning maintenance treatment of filter component, while cleaning maintenance, distribution plate will not be contaminated and blocked, simple and convenient to operate, in addition, through the rotary movement control of plugging cleaning component, adsorption resin can be turned over with disturbance component, improve utilization and processing effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, in particular to a kind of wastewater treatment with electrodialysis equipment. BACKGROUND

[0002] Electrodialysis is a technology for wastewater separation using the selective permeability of ion exchange membrane, and is widely used in wastewater treatment field;

[0003] The utility model discloses a metal surface treatment wastewater electrodialysis water recovery device discloses a kind of metal surface treatment wastewater electrodialysis water recovery device, belong to wastewater treatment technical field, by touch screen controller, current can be applied to graphite plate and stainless steel plate, to form anode and cathode, and under the drive of electric field, using the selective permeability of ion exchange membrane, anion and cation move to anode and cathode respectively, to realize solution desalination, concentration, refining or purification etc. Purpose, by temperature controller and temperature sensor, heating rod heating can be controlled, to be able to speed up ion migration, in turn improve the efficiency of electrodialysis water, but due to the complex composition of wastewater, if the water entering the electrodialysis device contains more hardness ions such as calcium and magnesium, due to the migration and concentration of ions during electrodialysis, these hardness ions are easy to form scale on the surface of membrane and electrode, such as calcium carbonate and magnesium hydroxide, the formation of scale will affect the permeability of ions, reduce the efficiency of electrodialysis, and may also cause the performance of membrane to decline, shorten the service life of membrane, so wastewater is pretreated as soft water before electrodialysis treatment, but the existing pretreatment equipment is easy to be blocked by suspended solids and other impurities when in use, and the utilization effect of internal adsorption resin is poor. SUMMARY

[0004] The present application aims to provide a kind of wastewater treatment with electrodialysis equipment to solve the problems raised in the above background.

[0005] To achieve the above object, the present application provides the following technical scheme: a kind of wastewater treatment with electrodialysis equipment, comprising:

[0006] Wastewater electrodialysis soft water tank, the upper end of the wastewater electrodialysis soft water tank is provided with an end cover, a distribution disc is horizontally arranged at the upper end of the end cover in the wastewater electrodialysis soft water tank, a resin filling area is arranged below the distribution disc in the wastewater electrodialysis soft water tank through a water-permeable partition plate, a central control box is vertically arranged at the center of the distribution disc, a wastewater inlet pipe is movably sealed in the central control box, a filter assembly is arranged at the lower end of the wastewater inlet pipe, and the filter assembly comprises an annular filter cover;

[0007] Plugging and cleaning assembly, a protective cover is arranged at the center of the lower end of the distribution disc, the plugging and cleaning assembly is arranged in the protective cover through a control assembly, the plugging and cleaning assembly comprises a plugging ball and a cleaning slot, and the control assembly comprises a cleaning control box and two U-shaped control frames.

[0008] A disturbing assembly is arranged in the resin filling area, and the disturbing assembly comprises an agitating shaft, and an upper end of the agitating shaft penetrates the protective cover and is connected with a lower end of the cleaning control box.

[0009] Preferably, a piston groove is arranged at an upper end of the wastewater inlet pipe, air inlets are arranged at upper and lower ends of the piston groove respectively, a piston disc is horizontally arranged at an upper end of the wastewater inlet pipe inserted into the piston groove, a filter groove is arranged at a lower end of the wastewater inlet pipe, a distribution groove is arranged in the distribution disc, the distribution groove is arranged in communication with the filter groove, and an annular filter cover is fixedly arranged at a lower end of the wastewater inlet pipe inserted into the filter groove through a support, and the annular filter cover is arranged in correspondence with the distribution groove.

[0010] Preferably, the cleaning control box is arranged at a lower end center of the protective cover, a ball groove is arranged at an upper end of the cleaning control box, a blocking ball is rotatably arranged in the ball groove, a lower end of the wastewater inlet pipe is inserted into the protective cover and is provided with a sealing ball groove, the sealing ball groove is in communication with the filter groove, and one side of the blocking ball is sealingly inserted into the sealing ball groove.

[0011] Preferably, overlapping shafts are horizontally arranged at two ends of the blocking ball, the two overlapping shafts are coaxial and correspond to a ball center of the blocking ball, a support ring is arranged at an upper end of the cleaning control box, and the two overlapping shafts are rotatably penetrated through two sides of the support ring respectively.

[0012] Preferably, the overlapping shafts are sleeved with driving gears at two sides penetrated through the support ring respectively, the cleaning control box is provided with receiving grooves at lower ends of the driving gears respectively, the cleaning control box is provided with lifting piston grooves at lower ends of the receiving grooves respectively, the cleaning control box is provided with lifting air supply grooves in communication at lower ends of the lifting piston grooves respectively, lifting piston rods are vertically movably inserted between the receiving grooves and the lifting piston grooves, the lifting piston rods are provided with lifting pistons at lower ends in the lifting piston grooves, and U-shaped control frames are vertically inserted into the receiving grooves and are connected with upper ends of the lifting piston rods.

[0013] Preferably, a width between two vertical sections of the U-shaped control frame is greater than a diameter of the driving gear, a side of one of the vertical sections is symmetrically provided with a plurality of turnover teeth, one side of the driving gear is in meshing connection with the turnover teeth, and the turnover teeth of the two U-shaped control frames are arranged in opposite directions, when one of the U-shaped control frames descends to the lowermost position, the other U-shaped control frame ascends to the uppermost position.

[0014] Preferably, a cleaning slot is arranged at one side of the blocking ball, a diameter and a height of the cleaning slot are greater than a diameter and a height of the annular filter cover respectively, an annular shunt groove is arranged at one side of the blocking ball close to the cleaning slot, a plurality of backflushing holes are arranged in the annular shunt groove in communication with the cleaning slot, and the plurality of backflushing holes correspond to the annular filter cover when the annular filter cover is arranged in the cleaning slot.

[0015] Preferably, the protective cover is provided with a strip-shaped accommodation slot on each side, and the two overlap shafts are movably penetrated through the two strip-shaped accommodation slots.

[0016] Preferably, the agitation shaft is provided with a plurality of turnover rods symmetrically arranged on one side of the resin filling area, and the upper end of the agitation shaft is movably penetrated through the center of the lower end of the protective cover and connected with the lower end of the cleaning control box through a bearing.

[0017] Preferably, the protective cover is provided with a swing groove on one side of the agitation shaft, and the swing groove is provided with an arc-shaped piston groove on each side.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] Before the wastewater enters the electrodialysis membrane group, the wastewater is treated by the wastewater electrodialysis softening tank to remove hardness ions such as calcium and magnesium. After the wastewater enters the wastewater electrodialysis softening tank, the wastewater is filtered and distributed by the distribution disc provided with a filtering assembly, so that the wastewater can be uniformly and cleanly sprayed on the adsorption resin, thereby improving the contact effect of the adsorption resin. The sealing and cleaning assembly is arranged below the distribution disc to automatically clean and maintain the filtering assembly. During the cleaning and maintenance, the distribution disc is not polluted and blocked, and the operation is simple and convenient. In addition, the sealing and cleaning assembly can be rotated and moved to cooperate with the disturbance assembly to turn the adsorption resin, thereby improving the utilization rate and treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present application;

[0021] Figure 2 It is a partial side sectional structural schematic diagram of the present application;

[0022] Figure 3 It is a partial side sectional structural schematic diagram of the present application; Figure 2

[0023] Figure 4 It is a partial side sectional structural schematic diagram of the present application; Figure 3

[0024] Figure 5 It is an installation structural schematic diagram of the cleaning control box and the agitation shaft of the present application;

[0025] Figure 6 It is a selection control structural schematic diagram of the agitation shaft of the present application;

[0026] ​​Figure 7 The installation structure diagram of the blocking ball of the application.

[0027] In the figure: wastewater electrodialysis soft water tank 1, end cover 2, distribution disc 3, resin filling area 4, central control box 5, wastewater inlet pipe 6, distribution groove 7, annular filter cover 8, protective cover 9, sealing ball groove 10, cleaning control box 11, blocking ball 12, lap shaft 13, driving gear 14, storage groove 15, jacking piston groove 16, jacking piston rod 17, U-shaped control frame 18, overturning tooth 19, jacking air supply groove 20, cleaning insertion groove 21, annular shunt groove 22, backflushing hole 23, liquid inlet groove 24, blowdown groove 25, strip-shaped accommodation groove 26, stirring shaft 27, overturning rod 28, swing groove 29, driving block 30, arc-shaped piston groove 31, arc-shaped piston rod 32. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0029] Please refer to the drawings in the embodiments of the application. Figures 1-7 The application provides the following technical solutions.

[0030] Embodiment one: a wastewater treatment electrodialysis device, comprising a wastewater electrodialysis soft water tank 1, the upper end of the wastewater electrodialysis soft water tank 1 is provided with an end cover 2, the upper end of the wastewater electrodialysis soft water tank 1 is horizontally provided with a distribution disc 3 inside the end cover 2, the wastewater electrodialysis soft water tank 1 is provided with a resin filling area 4 below the distribution disc 3 through a water-permeable partition plate, the center of the distribution disc 3 is vertically provided with a central control box 5, the central control box 5 is movably and sealingly provided with a wastewater inlet pipe 6, the lower end of the wastewater inlet pipe 6 is provided with a filter assembly, the filter assembly comprises an annular filter cover 8, a lifting groove is formed in the upper end of the wastewater inlet pipe 6, air inlet joints are respectively arranged at the upper and lower ends of the lifting groove, a piston disc is horizontally arranged at the upper end of the wastewater inlet pipe 6 inserted into the lifting groove, a filter groove is formed in the lower end of the wastewater inlet pipe 6, a distribution groove 7 is formed in the distribution disc 3, the distribution groove 7 is in communication with the filter groove, the annular filter cover 8 is fixedly arranged at the lower end of the wastewater inlet pipe 6 inserted into the filter groove through a support, and the annular filter cover 8 is correspondingly arranged with the distribution groove 7, the resin filling area 4 is filled with adsorption resin, wastewater needing to be subjected to electrodialysis is sent into the filter groove through the wastewater inlet pipe 6 before being sent into the electrodialysis device, at this time, the wastewater in the filter groove is filtered through the annular filter cover 8 and then enters the distribution groove 7 of the distribution disc 3 below, and is distributedly sprayed on the resin below, and the wastewater filtered through the annular filter cover 8 can be further treated.

[0031] The blocking and cleaning assembly is arranged to clean the annular filter cover 8, and the lower end of the distribution disc 3 is provided with a protective cover 9. The blocking and cleaning assembly is arranged in the protective cover 9 through a control assembly. The blocking and cleaning assembly comprises a blocking ball 12 and a cleaning slot 21. The control assembly comprises a cleaning control box 11 and two U-shaped control frames 18. The cleaning control box 11 is arranged at the lower end of the protective cover 9. A ball groove is formed in the upper end of the cleaning control box 11. The blocking ball 12 is rotatably arranged in the ball groove. The lower end of the wastewater inlet pipe 6 is inserted into the protective cover 9 and is provided with a sealing ball groove 10. The sealing ball groove 10 is connected with the filter groove. One side of the blocking ball 12 is sealingly inserted into the sealing ball groove 10. When the annular filter cover 8 is normally used for filtering, one end of the blocking ball 12 blocks the sealing ball groove 10. At this time, the wastewater in the filter groove can only enter the distribution groove 7 of the distribution disc 3 through the annular filter cover 8.

[0032] Both ends of the blocking ball 12 are horizontally provided with overlapping shafts 13. The two overlapping shafts 13 are coaxial and correspond to the ball center of the blocking ball 12. The upper end of the cleaning control box 11 is provided with a support ring. The two overlapping shafts 13 are rotatably inserted into the two sides of the support ring, respectively. The two sides of the overlapping shafts 13 inserted into the support ring are both sleeved with a driving gear 14. The lower end of the cleaning control box 11 is provided with a receiving groove 15. The lower end of the receiving groove 15 in the cleaning control box 11 is provided with a lifting piston groove 16. The lower end of the lifting piston groove 16 in the cleaning control box 11 is connected and provided with a lifting gas supply groove 20. The lifting piston rod 17 is vertically and movably inserted between the receiving groove 15 and the lifting piston groove 16. The lower end of the lifting piston rod 17 in the lifting piston groove 16 is provided with a lifting piston. The U-shaped control frame 18 is vertically inserted into the receiving groove 15 and is connected with the upper end of the lifting piston rod 17. The width between the two vertical sections of the U-shaped control frame 18 is greater than the diameter of the driving gear 14. One side of one of the vertical sections is symmetrically provided with a plurality of flip teeth 19. One side of the driving gear 14 is connected with the flip teeth 19 in meshing. The flip teeth 19 of the two U-shaped control frames 18 are arranged in opposite directions. When one of the U-shaped control frames 18 is lowered to the lowest position, the other U-shaped control frame 18 is raised to the highest position. The rotation of the blocking ball 12 can be controlled through the up-and-down alternating movement of the two U-shaped control frames 18. When the lifting piston groove 16 below one of the U-shaped control frames 18 sends in high-pressure gas, the other lifting piston groove 16 interrupts the gas connection. At the same time, with the rising of the U-shaped control frame 18, the other U-shaped control frame 18 will be pushed down under the action of the oppositely arranged flip teeth 19. The reciprocating movement of the two can complete the rotation control of the blocking ball 12 and realize the blocking operation of the sealing ball groove 10.

[0033] The cleaning slot 21 is arranged on one side of the blocking ball 12, the diameter and height of the cleaning slot 21 are greater than the diameter and height of the annular filter cover 8 respectively, an annular shunt groove 22 is arranged on one side of the blocking ball 12 close to the cleaning slot 21, a plurality of backflushing holes 23 are arranged in the annular shunt groove 22 and are communicated with the cleaning slot 21, when the annular filter cover 8 is arranged in the cleaning slot 21, the plurality of backflushing holes 23 correspond to the annular filter cover 8, a strip-shaped accommodation slot 26 is arranged on each side of the protective cover 9, the two lapping shafts 13 are movably arranged through the two strip-shaped accommodation slots 26 respectively, the center of one lapping shaft 13 is communicated with the annular shunt groove 22 and an inlet groove 24 is arranged in the center, the center of the other lapping shaft 13 is communicated with the lower end of the cleaning slot 21 and a sewage discharge groove 25 is arranged in the center, when the cleaning slot 21 corresponds to the blocking groove after the blocking ball 12 rotates, at this time, the wastewater inlet pipe 6 pushes the control wastewater inlet pipe 6 and the annular filter cover 8 downwards through the piston disc, at this time, the annular filter cover 8 is inserted into the cleaning slot 21 and corresponds to the backflushing hole 23, when the inlet groove 24 transports high-pressure water into the annular shunt groove 22, under the further pressurization of the plurality of backflushing holes 23, the annular filter cover 8 is backflushed, the pollutants accumulated on the inner circumferential surface of the annular filter cover 8 are cleaned, and the cleaned sewage is discharged from the cleaning slot 21 through the sewage discharge groove 25.

[0034] In the embodiment one, the disturbance assembly is arranged in the resin filling area 4, the disturbance assembly comprises a stirring shaft 27, the upper end of the stirring shaft 27 penetrates the protective cover 9 and is connected with the lower end of the cleaning control box 11, a plurality of overturning rods 28 are symmetrically arranged on one side of the stirring shaft 27 arranged in the resin filling area 4, the upper end of the stirring shaft 27 penetrates the center of the lower end of the protective cover 9 through a bearing and is connected with the center of the lower end of the cleaning control box 11, a swing groove 29 is arranged in the protective cover 9 on one side of the stirring shaft 27, arc-shaped piston grooves 31 are arranged on both sides in the swing groove 29, a poking block 30 is arranged on one side of the stirring shaft 27 in the swing groove 29, arc-shaped piston rods 32 are arranged on both sides of the poking block 30 respectively, one side of each of the two arc-shaped piston rods 32 is movably inserted into each of the two arc-shaped piston grooves 31 and a pushing piston is arranged, when high-pressure gas enters one of the arc-shaped piston grooves 31, the arc-shaped piston rod 32 pushes the poking block 30 to rotate to the other arc-shaped piston groove 31, at this time, the poking block 30 can control the stirring shaft 27 and the cleaning control box 11 to rotate, the overturning rods 28 overturn the resin in the resin filling area 4, and the adsorption utilization rate of the resin is improved.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrodialysis apparatus for treating wastewater, characterized by comprising: The utility model relates to a waste water electrodialysis softening tank (1) is provided with end cover (2) at the upper end, and the upper end of waste water electrodialysis softening tank (1) is provided with distribution disc (3) in end cover (2), and waste water electrodialysis softening tank (1) is provided with resin filling area (4) below distribution disc (3) through water -permeable partition, and the center of distribution disc (3) is vertically provided with center control box (5), and the movable seal of center control box (5) is provided with waste water inlet pipe (6), and the lower end of waste water inlet pipe (6) is provided with filter assembly, and filter assembly includes annular filter cover (8). The lower end center of distribution disc (3) is provided with protective outer cover (9), and the blocking and cleaning assembly is arranged in protective outer cover (9) through the control assembly, and the blocking and cleaning assembly includes blocking ball (12) and cleaning slot (21), and the control assembly includes cleaning control box (11) and two U-shaped control frames (18). The disturbance assembly is arranged in resin filling area (4), and the disturbance assembly includes stirring shaft (27), and the upper end of stirring shaft (27) penetrates protective outer cover (9) and is connected with the lower end of cleaning control box (11). The upper and lower ends of piston groove are provided with air inlet connectors respectively, the upper end of waste water inlet pipe (6) is horizontally provided with piston disc in piston groove, the lower end of waste water inlet pipe (6) is provided with filter groove, distribution disc (3) is provided with distribution groove (7), distribution groove (7) is communicated with filter groove, annular filter cover (8) is fixedly arranged in the lower end of waste water inlet pipe (6) in filter groove through support, and annular filter cover (8) is correspondingly arranged with distribution groove (7). The lower end center of cleaning control box (11) is arranged in protective outer cover (9), the upper end of cleaning control box (11) is provided with ball groove, blocking ball (12) is rotatably arranged in ball groove, the lower end of waste water inlet pipe (6) is inserted into protective outer cover (9) and is provided with sealing ball groove (10), sealing ball groove (10) is communicated with filter groove, and one side of blocking ball (12) is sealingly inserted into sealing ball groove (10). The both ends of blocking ball (12) are horizontally provided with lap shafts (13), the two lap shafts (13) are coaxial and correspond to the ball center of blocking ball (12), the upper end of cleaning control box (11) is provided with support ring, and the two lap shafts (13) are rotatably penetrated through the two sides of support ring respectively.

2. An apparatus for the electrodialytic treatment of wastewater according to claim 1, characterized in that: ​ 3. An apparatus for the electrodialytic treatment of wastewater according to claim 2, characterized in that: The lap shaft (13) is sleeved with a driving gear (14) on both sides of the support ring, the cleaning control box (11) is provided with a receiving groove (15) at the lower end of the driving gear (14), the cleaning control box (11) is provided with a lifting piston groove (16) at the lower end of the receiving groove (15), the cleaning control box (11) is communicated with a lifting air supply groove (20) at the lower end of the lifting piston groove (16), the receiving groove (15) and the lifting piston groove (16) are vertically and movably connected with a lifting piston rod (17), the lower end of the lifting piston rod (17) in the lifting piston groove (16) is provided with a lifting piston, and a U-shaped control frame (18) is vertically inserted into the receiving groove (15) and connected with the upper end of the lifting piston rod (17).

4. The apparatus according to claim 3, wherein: The width between the two vertical sections of the U-shaped control frame (18) is greater than the diameter of the driving gear (14), one side of one of the vertical sections is symmetrically provided with a plurality of flip teeth (19), one side of the driving gear (14) is connected with the flip teeth (19) in meshing, and the flip teeth (19) of the two U-shaped control frames (18) are arranged in opposite directions, when one U-shaped control frame (18) is lowered to the lowermost position, the other U-shaped control frame (18) is raised to the uppermost position.

5. An apparatus for the electrodialytic treatment of wastewater according to claim 4, characterized in that: The cleaning slot (21) is provided on one side of the sealing ball (12), the diameter and height of the cleaning slot (21) are greater than the diameter and height of the annular filter cover (8) respectively, the annular filter cover (8) is provided with an annular shunt groove (22) on one side close to the cleaning slot (21), the annular shunt groove (22) is communicated with the cleaning slot (21) and is provided with a plurality of backflush holes (23), when the annular filter cover (8) is placed in the cleaning slot (21), the plurality of backflush holes (23) correspond to the annular filter cover (8).

6. An apparatus for the electrodialytic treatment of wastewater according to claim 5, characterized in that: The protective cover (9) is provided with a strip-shaped accommodation groove (26) on both sides, the two lap shafts (13) are movably inserted into the two strip-shaped accommodation grooves (26), the center of one of the lap shafts (13) is communicated with the annular shunt groove (22) and provided with a liquid inlet groove (24), and the center of the other lap shaft (13) is communicated with the lower end of the cleaning slot (21) and provided with a sewage discharge groove (25).

7. An apparatus for the electrodialytic treatment of wastewater according to claim 6, characterized in that: The agitating shaft (27) is provided with a plurality of flip rods (28) on one side in the resin filling area (4), and the upper end of the agitating shaft (27) is connected with the lower end center of the cleaning control box (11) through the bearing penetrating the lower end center of the protective cover (9).

8. An apparatus for the electrodialytic treatment of wastewater according to claim 7, characterized in that: The protective cover (9) is provided with a swing groove (29) on one side of the agitating shaft (27), the swing groove (29) is provided with an arc-shaped piston groove (31) on both sides, the agitating shaft (27) is provided with a driving block (30) on one side in the swing groove (29), the driving block (30) is provided with an arc-shaped piston rod (32) on both sides, and the arc-shaped piston rod (32) is movably inserted into the arc-shaped piston groove (31) on one side and provided with a driving piston.

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