CN212712876U

CN212712876U - Waste water sewage electrodialysis removes saline and alkaline device

Info

Publication number: CN212712876U
Application number: CN202022708083.3U
Authority: CN
Inventors: 颜朝霞; 陈红蕾; 冯丽娟; 张晓娜; 马燕; 陈立辉; 刘亚娟
Original assignee: LANZHOU INDUSTRY RESEARCH INSTITUTE
Current assignee: LANZHOU INDUSTRY RESEARCH INSTITUTE
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-03-16
Anticipated expiration: 2030-11-20

Abstract

The utility model provides a waste water sewage electrodialysis desalination alkali device belongs to electrodialysis treatment technical field for solve current electrodialysis equipment ion separation efficiency low, the structure is complicated, be difficult to the problem of maintaining. The electrodialysis assembly comprises a mounting seat, the mounting seat is clamped on the box body, an electrode plate group is arranged on the mounting seat, the electrode plate group penetrates through the box body and is positioned in the exchange cavity, a power socket is arranged at the upper end of the mounting seat, a power plug is inserted into the power socket, a power line is arranged at the end part of the power plug, and the power socket is electrically connected with the electrode plate group; the utility model discloses inside is tortuous route, and the velocity of flow of water is slow, long, high with the contact rate of electrodialysis subassembly with electrodialysis subassembly contact time, and saline and alkaline ion separation efficiency is high.

Description

Waste water sewage electrodialysis removes saline and alkaline device

Technical Field

The utility model belongs to the technical field of the electrodialysis is handled, especially a waste water sewage electrodialysis desalination alkali device.

Background

The waste water generally refers to water and runoff rainwater discharged in the process of resident activities, and comprises domestic waste water, industrial waste water and other useless water such as primary rainwater flowing into a drainage pipe canal; the sewage generally refers to water which is polluted to a certain extent, comes from life and production, loses the original use function, and contains more organic matters; electrodialysis is a process aiming at ions in water in wastewater and sewage treatment, and the principle is that under the action of an electric field, ions selectively permeate through corresponding semipermeable membranes to complete separation, and the electrodialysis is initially applied to seawater desalination and is widely applied to desalination separation aiming at salt and alkali ions in wastewater and sewage in a sewage treatment plant;

the electrodialysis process is a combination of an electrochemical process and a dialysis diffusion process; under the drive of an external direct current electric field, anions and cations move to the anode and the cathode respectively by utilizing the selective permeability of the ion exchange membrane (namely cations can permeate through the cation exchange membrane and anions can permeate through the anion exchange membrane); in the ion migration process, if the fixed charge of the membrane is opposite to the charge of the ions, the ions can pass through; if the charges of the two are the same, ions are repelled, so that the purposes of solution desalination, concentration, refining or purification and the like are achieved; the attachment of ions to the electrode plates may occur during the electrodialysis process; the existing electrodialysis equipment has a relatively complex structure, so that sediments on an electrode plate are difficult to clean, and the equipment is difficult to maintain; in addition, in order to improve the treatment efficiency, the logarithm of the electrode plate is increased, and the equipment structure is further complicated;

therefore, the wastewater and sewage electrodialysis saline-alkali removal device which is relatively simple in structure and convenient to disassemble and maintain is specially provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a wastewater and sewage electrodialysis desalination alkali removal device, which solves the technical problems that: how to simplify the structure of the electrodialysis device while ensuring the working efficiency.

The purpose of the utility model can be realized by the following technical proposal:

an electrodialysis desalination alkali device for wastewater and sewage comprises a main body assembly and an electrodialysis assembly, wherein a water inlet assembly is arranged on the left side of the main body assembly, a water outlet assembly is arranged on the right side of the main body assembly, the main body assembly comprises a box body, a plurality of anion exchange membranes are arranged on the rear side inside the box body, a plurality of cation exchange membranes are arranged on the front side inside the box body, the anion exchange membranes and the cation exchange membranes are arranged in a staggered mode, the anion exchange membranes and the cation exchange membranes are C-shaped, exchange cavities are respectively formed between the anion exchange membranes and the cation exchange membranes and the inner walls of the box body, the electrodialysis assembly comprises a mounting seat, the mounting seat is clamped on the box body, an electrode plate group is arranged on the mounting seat and is formed by splicing a plurality of electrode plates, the electrode plate group respectively penetrates through the box body and, the end part of the power plug is provided with a power line, and the power socket is electrically connected with the electrode plate group.

The utility model discloses a theory of operation is: the user connects the electrodialysis component with the external direct current power supply through the power cord, wherein the electrodialysis component at the front side of the box body is connected with the negative pole of the external direct current power supply, the motor plate component at the rear side of the box body is connected with the positive pole of the external direct current power supply, the external direct current power supply is started, the electrode plate group is electrified, the user puts the wastewater and sewage into the box body through the water inlet component, the water flow of the box body is in a shape like the Chinese character 'ji' due to the blocking of the electrode plate group, the flowing distance is increased, cations in the wastewater and sewage are attracted by the negatively charged electrode plate group and pass through the cation exchange membrane by adsorption, the anions are attracted by the positively charged electrode plate group and pass through the anion exchange membrane, the adsorbed saline-alkali ions cannot pass through the cation exchange membrane or the anion exchange membrane at the corresponding position again and return to, after a period of time, the user discharges the water flow after the separation of the saline-alkali ions through the water discharging assembly to go to the next purification process.

The main part subassembly is last to be provided with the seal assembly, and the seal assembly includes the case lid, and the case lid is fixed in the box upper end, has seted up the observation hole on the case lid, and it has the observation handhole door to articulate on the observation hole, and the observation handhole door lower extreme is equipped with the sealing strip.

Structure more than adopting, the user confirms the water level in the box through observing the hole, opens when the water level reaches the maximum value in the box and turns on the subassembly that drains and begin to emit the water behind the salt and alkali ion separation, ensures that electrodialysis in-process electrode plate group submergence in waste water sewage completely, guarantees that electrode plate group and waste water sewage contact rate are the biggest, improves electrodialysis efficiency.

The water inlet assembly comprises a water inlet pipe group, the water inlet pipe group is formed by vertically arranging a plurality of water inlet pipes, a water inlet valve is arranged on the water inlet pipe group, the water outlet assembly comprises a water outlet pipe, a water outlet valve is arranged on the water outlet pipe, and the water outlet pipe is located at the bottom of the right side of the box body.

By adopting the structure, a user can control the device to feed water and discharge water through the water inlet valve and the water outlet valve, the water inlet speed of the water inlet assembly is far higher than the water outlet rate of the water outlet assembly, the water flow speed in the box body is ensured to be slow, the retention time of wastewater and sewage in the box body is prolonged, and the electrodialysis efficiency is improved.

A plurality of through-holes have been seted up to both sides around the box, the quantity and the position of through-hole all correspond with the exchange chamber, the through-hole communicates with the exchange chamber that corresponds, the mount pad side is equipped with sealed piece, sealed piece block is inside the through-hole, the mount pad outside is equipped with the blank holder, the blank holder is contradicted on the mount pad, it is fixed through bolted connection between blank holder and the box, electrode plate group runs through the sealed piece that corresponds the position, be fixed with insulating handle on the mount pad, insulating handle upward cladding has the insulating layer, sealed piece adopts silica gel material to make, the insulating layer adopts vinyl silicone rubber material to make.

Structure more than adopting, when the mount pad joint was on the box, the two clearance was filled to the sealing block, prevented that waste water sewage from leaking, the blank pressing board was pressed the mount pad inside the box, further promoted the leakproofness between electrodialysis subassembly and the main part subassembly, the handheld insulating handle loading and unloading electrodialysis subassembly of user, vinyl silicone rubber heat resistance, insulating nature are good, can effectively prevent the electrodialysis subassembly electric leakage or the user mistake from touching the electric shock accident that causes.

Compared with the prior art, the electrodialysis desalination alkali removal device for wastewater and sewage has the following advantages:

1. through main part subassembly and electrodialysis subassembly cooperation, form tortuous path, it is long with the contact time of electrodialysis subassembly to increase waste water sewage, through subassembly, main part subassembly and the cooperation of play water subassembly of intaking, reduces the flow velocity of waste water sewage in the device, improves the contact rate of waste water sewage and electrodialysis subassembly, and saline and alkaline ion separation efficiency is high.

2. Through the cooperation of main part subassembly, seal assembly and electrodialysis subassembly, the device is whole to be dismantled, convenient cleanness, long service life.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the middle subassembly of the present invention;

in the figure: 1-main body component, 101-box body, 102-anion exchange membrane, 103-cation exchange membrane, 2-closed component, 201-box cover, 202-observation hole, 203-observation hole cover, 3-water inlet component, 301-water inlet pipe group, 302-water inlet valve, 4-water outlet component, 401-water outlet pipe, 402-water outlet valve, 5-electrodialysis component, 501-mounting seat, 502-insulating handle, 503-power socket, 504-power plug, 505-power line, 506-sealing block, 507-electrode plate group and 508-edge pressing plate.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-2, the embodiment provides an electrodialysis desalination alkali device for wastewater and sewage, which includes a main body assembly 1 and an electrodialysis assembly 5, a water inlet assembly 3 is disposed on the left side of the main body assembly 1, a water outlet assembly 4 is disposed on the right side of the main body assembly 1, the main body assembly 1 includes a box body 101, a plurality of anion exchange membranes 102 are disposed on the rear side inside the box body 101, a plurality of cation exchange membranes 103 are disposed on the front side inside the box body 101, the anion exchange membranes 102 and the cation exchange membranes 103 are arranged in a staggered manner, the anion exchange membranes 102 and the cation exchange membranes 103 are C-shaped, the anion exchange membranes 102 and the cation exchange membranes 103 respectively form an exchange cavity with the inner wall of the box body 101, the electrodialysis assembly 5 includes a mounting seat 501, the mounting seat 501 is clamped on the box body 101, an electrode plate group 507 is disposed on the mounting seat 501, the electrode plate group 507 is, a power socket 503 is arranged at the upper end of the mounting seat 501, a power plug 504 is inserted into the power socket 503, a power cord 505 is arranged at the end part of the power plug 504, and the power socket 503 is electrically connected with the electrode plate group 507;

the user connects the electrodialysis assembly 5 with the external direct current power supply through the power cord 505, wherein the electrodialysis assembly 5 positioned at the front side of the box body 101 is connected with the negative pole of the external direct current power supply, the motor plate assembly 5 positioned at the rear side of the box body 101 is connected with the positive pole of the external direct current power supply, the external direct current power supply is turned on, the electrode plate group 507 is electrified, the user puts the wastewater and sewage into the box body 101 through the water inlet assembly 3, the water flow of the box body 101 is in a zigzag shape due to the blocking of the electrode plate group 507, the flowing distance is increased, cations in the wastewater and sewage are attracted by the negatively charged electrode plate group 507 and absorbed and passed through the cation exchange membrane 103, the anions are attracted by the positively charged electrode plate group 507 and absorbed and passed through the anion exchange membrane 102, the absorbed saline-alkali ions cannot pass through the cation exchange membrane 103 or the anion exchange membrane 102 at the corresponding position again and, the separation of saline and alkaline ions is completed, and the user discharges the water flow after the separation of the saline and alkaline ions through the water discharging assembly 4 after a period of time to go to the next purification process.

The main body component 1 is provided with a sealing component 2, the sealing component 2 comprises a box cover 201, the box cover 201 is fixed at the upper end of the box body 101, the box cover 201 is provided with an observation hole 202, the observation hole 202 is hinged with an observation hole cover 203, and the lower end of the observation hole cover 203 is provided with a sealing strip;

the user confirms the water level in the box 101 through the observation hole, opens when the water level reaches the maximum value in the box 101 and turns on the subassembly 4 that drains and begins to emit the water behind the saline and alkaline ion separation, ensures that the complete submergence of electrode plate group 507 is in waste water sewage in the electrodialysis in-process, guarantees that electrode plate group 507 is the biggest with waste water sewage contact rate, improves electrodialysis efficiency.

The water inlet assembly 3 comprises a water inlet pipe group 301, the water inlet pipe group 301 is formed by vertically arranging a plurality of water inlet pipes, a water inlet valve 302 is arranged on the water inlet pipe group 301, the water outlet assembly 4 comprises a water outlet pipe 401, a water outlet valve 402 is arranged on the water outlet pipe 401, and the water outlet pipe 401 is positioned at the bottom of the right side of the box body 101;

a user controls the device to feed water and discharge water through the water inlet valve 302 and the water outlet valve 402, the water inlet rate of the water inlet component 3 is far higher than the water outlet rate of the water outlet component 4, the water flow speed in the box body 101 is ensured to be low, the retention time of wastewater and sewage in the box body 101 is prolonged, and the electrodialysis efficiency is improved.

The front side and the rear side of the box body 101 are provided with a plurality of through holes, the number and the positions of the through holes correspond to the exchange cavities, the through holes are communicated with the corresponding exchange cavities, the side end of the mounting seat 501 is provided with a sealing block 506, the sealing block 506 is clamped inside the through holes, the outer side of the mounting seat 501 is provided with a side pressing plate 508, the side pressing plate 508 is abutted against the mounting seat 501, the side pressing plate 508 is fixedly connected with the box body 101 through bolts, the electrode plate group 507 penetrates through the sealing block 506 at the corresponding position, the mounting seat 501 is fixedly provided with an insulating handle 502, the insulating handle 502 is coated with an insulating layer, the sealing block 506 is made of silica gel materials, and the insulating;

when mount pad 501 joint was on box 101, the two clearance of sealed piece 506 filling, prevented that waste water sewage from leaking, blank holder 508 was pressed mount pad 501 inside box 101, further promoted the leakproofness between electrodialysis subassembly 5 and the main part subassembly 1, the handheld insulating handle 502 loading and unloading electrodialysis subassembly 5 of user, vinyl silicone rubber heat resistance, insulating nature are good, can effectively prevent electrodialysis subassembly 5 electric leakage or the electric shock accident that the user mistake touched the cause.

The utility model discloses a theory of operation:

the user connects the electrodialysis assembly 5 with the external direct current power supply through the power cord 505, wherein the electrodialysis assembly 5 at the front side of the box 101 is connected with the negative pole of the external direct current power supply, the motor plate assembly 5 at the rear side of the box 101 is connected with the positive pole of the external direct current power supply, the external direct current power supply is started, the electrode plate group 507 is electrified, the user opens the water inlet assembly 3 through the water inlet valve 302 to put the wastewater and sewage into the box 101, the user confirms the water level in the box 101 through the observation hole, when the water level in the box 101 reaches the maximum value, the water outlet assembly 4 is opened through the water outlet valve 402 to discharge water flow, continuous electrodialysis is started, due to the blockage of the electrode plate group 507, the water flow of the box 101 is in a shape of a Chinese character 'ji', the flowing distance is increased, cations in the wastewater and sewage are attracted by the negatively charged electrode plate group, absorbed and passed anion exchange membrane 102, because the electrode plate group 507 of different polarity is crisscross each other, receive the saline and alkaline ion of absorption and can not pass cation exchange membrane 103 or anion exchange membrane 102 of corresponding position once more and get back to the main water flow in, accomplish saline and alkaline ion separation, when the device needs to be clean, the user dismantles case lid 201 to hand insulating handle 502 and demolish the back with electrodialysis subassembly 5, carry out the cleanness of box 101 and electrode plate group 507.

In conclusion, the main body assembly 1 is matched with the electrodialysis assembly 5 to form a zigzag path, so that the contact time between the wastewater and the sewage and the electrodialysis assembly 5 is prolonged, the flow speed of the wastewater and the sewage in the device is reduced through the matching of the water inlet assembly 3, the main body assembly 1 and the water outlet assembly 4, the contact rate between the wastewater and the sewage and the electrodialysis assembly 5 is improved, and the separation efficiency of saline-alkali ions is high; through the cooperation of main part subassembly 1, seal assembly 2 and electrodialysis subassembly 5, the device is whole to be dismantled, convenient cleanness, long service life.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a waste water sewage electrodialysis desalination alkali device, including main part subassembly (1) and electrodialysis subassembly (5), a serial communication port, main part subassembly (1) left side is provided with into water subassembly (3), main part subassembly (1) right side is provided with out water subassembly (4), main part subassembly (1) includes box (101), the inside rear side of box (101) is equipped with a plurality of anion exchange membrane (102), the inside front side of box (101) is equipped with a plurality of cation exchange membrane (103), anion exchange membrane (102) and cation exchange membrane (103) staggered arrangement, anion exchange membrane (102) and cation exchange membrane (103) all are the C type, anion exchange membrane (102) and cation exchange membrane (103) respectively form the exchange chamber with box (101) inner wall, electrodialysis subassembly (5) includes mount pad (501), mount pad (501) joint is on box (101), be equipped with electrode plate group (507) on mount pad (501), electrode plate group (507) are formed for the concatenation of a plurality of plate electrode, inside electrode plate group (507) run through box (101) respectively and are located the exchange chamber, mount pad (501) upper end is equipped with supply socket (503), power plug (504) have been inserted to supply socket (503) inside, power plug (504) tip is equipped with power cord (505), supply socket (503) and electrode plate group (507) electric connection.

2. An electrodialysis desalination alkali device for wastewater and sewage according to claim 1, wherein the main body component (1) is provided with a closing component (2), the closing component (2) comprises a box cover (201), the box cover (201) is fixed on the upper end of the box body (101), the box cover (201) is provided with an observation hole (202), the observation hole (202) is hinged with an observation hole cover (203), and the lower end of the observation hole cover (203) is provided with a sealing strip.

3. The electrodialysis desalination alkali device for wastewater and sewage according to claim 2, wherein the water inlet assembly (3) comprises a water inlet pipe set (301), the water inlet pipe set (301) is composed of a plurality of water inlet pipes which are vertically arranged, a water inlet valve (302) is arranged on the water inlet pipe set (301), the water outlet assembly (4) comprises a water outlet pipe (401), a water outlet valve (402) is arranged on the water outlet pipe (401), and the water outlet pipe (401) is located at the bottom of the right side of the box body (101).

4. The electrodialysis desalination alkali device for wastewater and sewage according to claim 3, wherein a plurality of through holes are formed in the front side and the rear side of the box body (101), the number and the positions of the through holes correspond to the exchange chambers, the through holes are communicated with the corresponding exchange chambers, a sealing block (506) is arranged at the side end of the mounting seat (501), the sealing block (506) is clamped in the through holes, a pressure side plate (508) is arranged on the outer side of the mounting seat (501), the pressure side plate (508) abuts against the mounting seat (501), the pressure side plate (508) is fixedly connected with the box body (101) through bolts, the electrode plate group (507) penetrates through the sealing block (506) at the corresponding position, an insulating handle (502) is fixed on the mounting seat (501), the insulating handle (502) is coated with an insulating layer, the sealing block (506) is made of silica gel material, and the insulating layer is made of vinyl silicone rubber material.