CN115448423B - Electrocatalytic waste water hardness removal device - Google Patents
Electrocatalytic waste water hardness removal device Download PDFInfo
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- CN115448423B CN115448423B CN202211031498.9A CN202211031498A CN115448423B CN 115448423 B CN115448423 B CN 115448423B CN 202211031498 A CN202211031498 A CN 202211031498A CN 115448423 B CN115448423 B CN 115448423B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims description 130
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 229910052802 copper Inorganic materials 0.000 claims description 22
- 239000010949 copper Substances 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000010936 titanium Substances 0.000 claims description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 150000002500 ions Chemical class 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 239000007772 electrode material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002848 electrochemical method Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46152—Electrodes characterised by the shape or form
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
- C02F2209/055—Hardness
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Electrochemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The application discloses an electrocatalytic wastewater hardness removal device, which comprises a support component and a plurality of electrocatalytic components which are arranged on the support component and connected in parallel, wherein each electrocatalytic component is respectively connected with a magnetic power plug; the electrocatalytic component comprises a plurality of polar plate components and a plurality of functional membrane components which are alternately arranged and connected in the closed frame, the polar plate components comprise a baffle plate, and a cathode polar plate and an anode polar plate which are respectively connected with two sides of the baffle plate, the functional membrane components comprise a ring plate with a through cavity in the middle part and a functional membrane arranged at the cavity of the ring plate, and the side wall of the ring plate is provided with a magnetic attraction limiting screw for being magnetically attracted and connected with a magnetic attraction type power plug; the two sides of the annular plate are respectively provided with a membrane supporting plate positioned at the cavity, the membrane supporting plates comprise rectangular frames and a plurality of flow passage plates which are vertically connected in the rectangular frames and are arranged at intervals, and the functional membrane is positioned between the membrane supporting plates at the two sides; the electrode scale formation can be avoided to this scheme, and electrolytic efficiency is high, and the structure is firm, easy to maintain.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment in the coal chemical industry, and particularly relates to an electrocatalytic wastewater hardness removal device.
Background
Industrial wastewater hardness removal is a difficult problem in the water treatment industry, and chemical dosing, ion exchange, membrane and electrochemical methods are generally adopted.
The chemical dosing method needs to add an alkaline agent, PH needs to be adjusted after dosing, a large amount of solid slag is produced at the same time, a large amount of acid and alkali are consumed, and the problem that the dosing amount is asynchronous with the water quality change exists; the ion exchange method can adsorb the hardness in water, but can generate a large amount of high-salt high-hardness waste liquid, is difficult to treat, generally needs to add alkaline agent, and has the same disadvantages of the chemical method. The membrane method can remove the hardness in water, but has higher requirements on pretreatment, and the membrane is easy to pollute and block, unstable in operation and needs to carry out secondary treatment for producing high-hardness wastewater. The electrochemical method relies on electro-adsorption to treat the hardness in water, but alkali is also required to be added to cause hardness ions to scale on the electrode, so that the efficiency of the electrode is affected, and the method has no industrial mature application.
Disclosure of Invention
In order to overcome the defects in the existing wastewater hardness removal technology, the invention provides the electrocatalytic wastewater hardness removal device which has the technical advantages of stable hardness removal effect, no need of adding alkaline agent and adjusting back pH, capability of avoiding electrode scaling, high electrolysis efficiency, stable structure and easy maintenance.
The invention adopts the technical proposal for solving the technical problems that:
an electrocatalytic wastewater hardness removal device comprises a support component and a plurality of electrocatalytic components which are arranged in parallel and are arranged on the support component, wherein each electrocatalytic component is respectively connected with a magnetic power plug;
the electrocatalytic component comprises a plurality of polar plate components and a plurality of functional membrane components which are alternately arranged and connected in the closed frame at intervals, and each functional membrane component and polar plate components on two sides of each functional membrane component form a reaction unit; the electrode plate assembly comprises a separator and a cathode electrode plate and an anode electrode plate which are respectively connected to two sides of the separator, wherein the anode electrode plate is one of a titanium plate, a titanium mesh, a carbon plate, a carbon mesh and a graphite plate; the cathode plate is made of a porous electrode material and is one of a carbon plate, a carbon net, a titanium-containing plate type structure, a titanium-containing net type structure, an iron-containing plate type structure, an iron-containing net type structure, an aluminum-containing plate type structure and an aluminum-containing net type structure; the partition board is a non-metal insulating board and is one of plate structures made of PP, PE, PVC materials; a cathode cavity is formed between the cathode polar plate and the functional membrane component, an anode cavity is formed between the anode polar plate and the functional membrane component, each reaction unit comprises a cathode cavity and an anode cavity, and a plurality of reaction units are alternately arranged according to the anode cavity and the cathode cavity; the upper parts of the anode cavity and the cathode cavity are respectively provided with a water inlet, and the lower parts are respectively provided with a water outlet;
the functional membrane component comprises a ring plate with a through cavity in the middle and a functional membrane arranged at the cavity of the ring plate, wherein the functional membrane is a separation membrane for separating or selectively passing ions; the side wall of the annular plate is provided with a magnetic limit screw;
the magnetic power plug comprises a plug bracket and a plurality of copper bars arranged in through holes in the middle of the plug bracket, one end of each copper bar is connected with a cathode polar plate and an anode polar plate, the other end of each copper bar is connected with a lead, and copper sheets are respectively coated at the connecting ends of the cathode polar plate and the anode polar plate and the copper bars; the plug bracket is provided with a groove which is matched and clamped with the magnetic attraction limiting screw, and a magnet attracted with the magnetic attraction limiting screw is arranged in the groove.
As a further embodiment of the invention, the two sides of the annular plate are respectively provided with a membrane supporting plate positioned at the cavity, the membrane supporting plates comprise a rectangular frame and a plurality of flow passage plates which are vertically connected in the rectangular frame and are arranged at intervals, and the functional membrane is positioned between the membrane supporting plates at the two sides.
As a further embodiment of the invention, the plug bracket is connected with a protective cover, the protective cover is arranged on the outer side of the copper bar, the bottom of the protective cover is provided with an outgoing line hole for leading a wire to pass out, and the wire is respectively connected with the positive electrode and the negative electrode of the power supply.
As a further embodiment of the present invention, the support assembly includes two side legs arranged at intervals, a liquid collecting tank connected to the bottom of the legs, and a cross beam connected to the two sides of the top of the legs; the landing leg of one side is last fixedly connected with vertical pinch plate that sets up, pinch plate fixed connection between the crossbeam of both sides, still be equipped with the stopping board relative with the pinch plate between the crossbeam of both sides, stopping board passes through pulley and crossbeam sliding connection, stopping board one side and hydro-cylinder output shaft, and a plurality of electrocatalytic components locate on the collecting tank and lie in between pinch plate and the stopping board, hydro-cylinder drive stopping board removes and compresses tightly a plurality of electrocatalytic components each other along electrocatalytic component's range direction on the crossbeam.
As a further embodiment of the invention, the top of the compacting plate is connected with an anode liquid inlet pipe orifice, and the bottom is connected with a cathode liquid outlet pipe orifice; the top of the retaining plate is connected with a cathode liquid inlet pipe orifice, and the bottom of the retaining plate is connected with an anode liquid outlet pipe orifice; the anode liquid inlet pipe is connected with the anode liquid inlet pipe, the anode liquid inlet pipe is communicated with the water inlet of each anode cavity, the cathode liquid inlet pipe is connected with the cathode liquid inlet pipe, the cathode liquid inlet pipe is communicated with the water inlet of each cathode cavity, the cathode liquid outlet pipe is connected with the cathode liquid outlet pipe, the cathode liquid outlet pipe is communicated with the water outlet of each cathode cavity, the anode liquid outlet pipe is connected with the anode liquid outlet pipe, and the anode liquid outlet pipe is communicated with the water outlet of each anode cavity.
As a further embodiment of the invention, the top of the annular plate is respectively provided with an anode liquid inlet hole and a cathode liquid inlet hole, and the bottom of the annular plate is respectively provided with an anode liquid outlet hole and a cathode liquid outlet hole, wherein the anode liquid inlet hole and the anode liquid outlet hole are positioned on one side of the functional membrane component, and the cathode liquid inlet hole and the cathode liquid outlet hole are positioned on the other side of the functional membrane component;
the anode liquid inlet hole and the anode liquid outlet hole are communicated with the anode cavity and are respectively used as a water inlet and a water outlet of the anode cavity; the cathode liquid inlet hole and the cathode liquid outlet hole are communicated with the cathode cavity and are respectively used as a water inlet and a water outlet of the cathode cavity.
As a further embodiment of the present invention, a gas discharge nozzle is connected to the top of the compacting plate, and the gas discharge nozzle is communicated with each anode cavity through a gas discharge pipe.
The beneficial effects of the invention include:
each electrocatalytic component is an independent functional unit, and a plurality of functional units are connected in parallel and pressed, so that the wastewater treatment capacity of the device is improved, and wastewater with larger flow can be treated at one time, so that the wastewater treatment efficiency is improved; the magnetic type power plug is connected to the electrocatalytic component, so that the electric catalytic component can be used as an electrode lead-out component for protecting copper bars, and meanwhile, the electric catalytic component can be attracted with the magnetic type positioning screw on the functional membrane component by utilizing the action of the magnet to limit the movement of the polar plate component, so that the device structure is more stable; when the oil cylinder is compressed to a certain degree, the oil cylinder is limited to be continuously compressed due to the action of the magnetic power plug, the electrocatalytic component is protected from being compressed limitlessly, and the electrocatalytic component is firmly contacted with the electric contact part of the copper bar; the cathode plate is made of a porous electrode material, so that micro bubbles can be generated, the electrolysis efficiency is improved, and electrode scaling is avoided; through setting up the membrane backup pad, not only provide the runner for rivers flow on the functional membrane surface, guarantee that the water distribution is even, improve the membrane face velocity of flow, avoid the scale deposit, improve electrolysis efficiency, reduced the possibility that leads to the functional membrane to take place to warp owing to the pressure is too big moreover. The device has strong structural universality, no requirement on electrolytic water, high efficiency and easy maintenance.
Drawings
FIG. 1 is an assembly view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of the electrocatalytic component of the present invention;
FIG. 4 is a schematic view of a functional membrane module according to the present invention;
FIG. 5 is a schematic view of the plate assembly of the present invention;
fig. 6 is a schematic diagram of the structure of the magnetic power plug of the invention.
The reference numerals in the drawings illustrate: 1-cathode liquid outlet pipe orifice, 2-anode liquid inlet pipe orifice, 3-cross beam, 4-compacting plate, 5-electrocatalytic component, 6-backstop plate, 7-anode liquid outlet pipe orifice, 8-cathode liquid inlet pipe orifice, 9-oil cylinder, 10-pulley, 11-landing leg, 12-magnetic suction type power plug, 13-liquid discharge hole, 14-liquid collecting tank and 15-gas discharge pipe orifice;
30-polar plate assembly; 31-cathode plate, 32-separator, 33-anode plate;
24-functional membrane components, 24.1-functional membranes, 24.2-annular plates, 24.3-anode liquid outlet holes, 24.4-membrane support plates, 24.5-anode liquid inlet holes, 24.6-magnetic attraction limit screws, 24.7-functional membrane set screws, 24.8-cathode liquid inlet holes and 24.9-cathode liquid outlet holes;
41-copper bars, 42-plug brackets, 43-magnets, 44-shields and 45-outgoing line holes.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "horizontal", "inner", "outer", etc., are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or component referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," second, "and third" are used merely to distinguish components and should not be construed as indicating or implying relative importance.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
The utility model provides an electrocatalytic wastewater removes hard device, is especially suitable for the treatment of coal industry high hardness high salt waste water, and it is the implementation mode of installation combination earlier, later compresses tightly, firstly places a plurality of electrocatalytic components 5 on the supporting component who comprises landing leg 11, collecting vat 14, crossbeam 3, pressure strip 4, stopping board 6, inserts magnetism again in proper order on electrocatalytic components 5 and inhale formula power plug 12, promotes stopping board 6 through tip hydro-cylinder 9, makes a plurality of electrocatalytic components 5 press from both sides tightly to the direction of pressure strip 4.
The specific structure of the present device will be described with reference to fig. 1 to 6:
each electrocatalytic component 5 is an independent functional unit and comprises a plurality of polar plate components 30 and a plurality of functional membrane components 24 which are alternately arranged and connected in a closed frame at intervals, and each functional membrane component 24 and the polar plate components 30 on two sides of the functional membrane component form a reaction unit; the electrode plate assembly 30 includes a separator 32, and a cathode electrode plate 31 and an anode electrode plate 33 respectively connected to two sides of the separator 32, wherein the separator 32 is a non-metal insulating plate, a plate structure made of PP, PE, PVC material can be selected, and the anode electrode plate 33 is one of a titanium plate, a titanium mesh, a carbon plate, a carbon mesh and a graphite plate, and is not limited to the above selection; the cathode plate 31 is made of a porous electrode material, and is one of a carbon plate, a carbon net, a titanium-containing plate structure, a titanium-containing net structure, an iron-containing plate structure, an iron-containing net structure, an aluminum-containing plate structure and an aluminum-containing net structure, and is not limited to the above selection; the leading-out ends of the cathode polar plate 31 and the anode polar plate 33 are respectively coated with copper sheets;
a cathode cavity is formed between the cathode polar plate 31 and the functional membrane assembly 24, an anode cavity is formed between the anode polar plate 33 and the functional membrane assembly 24, each reaction unit comprises a cathode cavity and an anode cavity, and a plurality of reaction units are alternately arranged according to the anode cavity and the cathode cavity; the upper parts of the anode cavity and the cathode cavity are respectively provided with a water inlet, and the lower parts are respectively provided with a water outlet;
the functional membrane assembly 24 comprises a ring plate 24.2 with a through cavity in the middle part and a functional membrane 24.1 arranged at the cavity of the ring plate 24.2, the functional membrane 24.1 is fixed by a functional membrane positioning screw 24.7, and the functional membrane 24.1 is a separation membrane for separating or selectively passing ions, and an ion exchange membrane, carbon fiber, fiber cloth, asbestos cloth and the like can be selected; an upper magnetic limit screw 24.6 and a lower magnetic limit screw 24.6 are screwed on the side wall of the annular plate 24.2; the two sides of the ring plate 24.2 are respectively provided with a film supporting plate 24.4 which is positioned at the cavity and is integrally arranged with the ring plate 24.2, the film supporting plate 24.4 comprises a rectangular frame and a plurality of flow passage plates which are vertically connected in the rectangular frame and are arranged at intervals, and the functional film 24.1 is positioned between the film supporting plates 24.4 at the two sides; the membrane support plate 24.4 not only provides a flow path for water to flow on the surface of the membrane, but also reduces the situation that the membrane is deformed due to overlarge pressure to a certain extent;
anode liquid inlet holes 24.5 and cathode liquid inlet holes 24.8 are respectively formed in the top of the annular plate 24.2, anode liquid outlet holes 24.3 and cathode liquid outlet holes 24.9 are respectively formed in the bottom of the annular plate, wherein the anode liquid inlet holes 24.5 and the anode liquid outlet holes 24.3 are positioned on one side of the functional membrane assembly 24, and the cathode liquid inlet holes 24.8 and the cathode liquid outlet holes 24.9 are positioned on the other side of the functional membrane assembly 24;
the anode liquid inlet hole 24.5 and the anode liquid outlet hole 24.3 are communicated with the anode cavity and respectively serve as a water inlet and a water outlet of the anode cavity; the cathode liquid inlet hole 24.8 and the cathode liquid outlet hole 24.9 are communicated with the cathode cavity and respectively serve as a water inlet and a water outlet of the cathode cavity;
the annular plate 24.2 provides a fixed compression structure for the functional membrane 24.1, is a detachable structure, and facilitates cleaning of the anode liquid inlet 24.5, the cathode liquid inlet 24.8, the anode liquid outlet 24.3 and the cathode liquid outlet 24.9.
The magnetic power plug 12 comprises a plug bracket 42 made of nonmetallic materials and a plurality of copper bars 41 connected in through holes in the middle of the plug bracket 42 through bolts, one end of each copper bar 41 is connected with the position, coated with copper sheets, of the cathode polar plate 31 and the anode polar plate 33, and the other end of each copper bar is connected with a lead; the plug bracket 42 is provided with a groove which is matched and clamped with the magnetic attraction limiting screw 24.6, and a magnet 43 attracted with the magnetic attraction limiting screw 24.6 is arranged in the groove. The plug bracket 42 is connected with a protective cover 44, the protective cover 44 is covered on the outer side of the copper bar 41, and the bottom of the protective cover 44 is provided with an outgoing line hole 45 for leading a lead to pass out. The outgoing line hole 45 is used as the outlet of the whole outgoing line of the magnetic attraction type power plug, the current-carrying capacity of the outgoing line hole is the sum of the current-carrying capacities of the polar plate assembly 30, so that the number of the outgoing lines of the electrode is reduced, and the reliability is improved;
when the magnetic power plug 12 is plugged on the functional film assembly 24, the magnetic limit screw 24.6 is clamped in the groove provided with the magnet 43 to form a pair of magnetic attraction parts, and the two parts are tightly connected together.
The magnetic power plug 12 is not only used as an electrode leading-out part of the electrocatalytic component 5, but also is mutually attracted with a magnetic positioning screw on the functional film component by utilizing the action of a magnet to serve as one of parts for limiting the movement of the polar plate component, and after the cylinder is pressed to a certain extent, due to the arrangement of the plug bracket 42, the cylinder is limited to continue to be pressed, the electrocatalytic component 5 is protected from being pressed limitlessly, and the electrocatalytic component 5 is firmly contacted with an electric contact part of a copper bar.
The support assembly comprises two side supporting legs 11 which are arranged at intervals, a liquid collecting groove 14 connected to the bottoms of the supporting legs 11, and cross beams 3 connected to the two sides of the tops of the supporting legs 11; the vertical hold-down plate 4 that sets up of fixedly connected with on landing leg 11 of one side, hold-down plate 4 fixed connection is between both sides crossbeam 3, still be equipped with between the crossbeam 3 of both sides with hold-down plate 4 relative stopping board 6, stopping board 6 passes through pulley 10 and crossbeam 3 sliding connection, stopping board 6 one side and hydro-cylinder 9 output shaft, a plurality of electrocatalytic components 5 are located on the collecting tank 14 and are located between hold-down plate 4 and stopping board 6, the stiff end of the tight in-process of hold-down plate 4 clamp as whole device, hydro-cylinder 9 drive stopping board 6 removes and compresses tightly a plurality of electrocatalytic components 5 each other along the range direction of electrocatalytic components 5 on crossbeam 3. The bottom of the liquid collecting tank 14 is provided with a liquid discharging hole 13, and the liquid collecting tank 14 is used for supporting the electrocatalytic component 5 and preventing liquid from leaking out and leaking into the ground.
The top of the compacting plate 4 is welded with an anode liquid inlet pipe orifice 2 through a metal flange, and the bottom of the compacting plate is welded with a cathode liquid outlet pipe orifice 1 through a metal flange; the top of the retaining plate 6 is welded with a cathode liquid inlet pipe orifice 8 through a metal flange, and the bottom of the retaining plate is welded with an anode liquid outlet pipe orifice 7 through a metal flange; the anode liquid inlet pipe orifice 2 is connected with an anode liquid inlet pipe, the anode liquid inlet pipe is communicated with the water inlet of each anode cavity, the cathode liquid inlet pipe orifice 8 is connected with a cathode liquid inlet pipe, the cathode liquid inlet pipe is communicated with the water inlet of each cathode cavity, the cathode liquid outlet pipe orifice 1 is connected with a cathode liquid outlet pipe, the cathode liquid outlet pipe is communicated with the water outlet of each cathode cavity, the anode liquid outlet pipe orifice 7 is connected with an anode liquid outlet pipe, the anode liquid outlet pipe is communicated with the water outlet of each anode cavity,
in this embodiment, the anode liquid inlet hole 24.5 and the anode liquid outlet hole 24.3 formed on the annular plate are respectively used as the water inlet and the water outlet of the anode cavity, that is, the anode liquid inlet hole 24.5 is communicated with the anode liquid inlet pipe orifice 2, the anode liquid outlet hole 24.3 is communicated with the anode liquid outlet pipe orifice 7, and in the same way, the cathode liquid inlet hole 24.8 and the cathode liquid outlet hole 24.9 formed on the annular plate are respectively used as the water inlet and the water outlet of the cathode cavity, that is, the cathode liquid inlet hole 24.8 is communicated with the cathode liquid inlet pipe orifice 8, and the cathode liquid outlet hole 24.9 is communicated with the cathode liquid outlet pipe orifice 1; the liquid inlet hole is used for inputting water to be treated, and the liquid outlet hole is used for delivering water qualified in treatment.
The cathode liquid inlet pipe orifice 8, the cathode liquid outlet pipe orifice 1 and the flow channels on the functional membrane component form a cathode cavity water flow passage; the anode liquid inlet pipe orifice 2, the anode liquid outlet pipe orifice 7 and the flow channel on the functional membrane component form an anode cavity water flow passage.
The top of the compacting plate 4 is connected with an exhaust pipe orifice 15, and the exhaust pipe orifice 15 is communicated with each anode cavity through an exhaust pipeline, so that an exhaust channel is provided for gas generated in the working process of the electrocatalytic device, the gas of the by-product of electrolytic water can be timely discharged out of the system, and the electrolytic efficiency is ensured.
In one embodiment, the wastewater is pressurized by the wastewater pump and then fed into the anode liquid inlet pipe orifice 2, and then enters the anode cavity communicated with the anode liquid inlet hole 24.5 through the anode liquid inlet hole 24.5 of the electrocatalytic component 5, hardness ions in the anode cavity enter the cathode cavity through the functional membrane 24.1 by electric attraction, and products of the anode cavity and the cathode cavity are discharged through the anode liquid outlet hole 24.3 and the cathode liquid outlet hole 24.9 respectively.
The functional membrane component of the device isolates the cathode cavity from the anode cavity, so that OH & lt- & gt and H & lt+ & gt of electrolytic water are respectively concentrated in the cathode cavity and the anode cavity, OH & lt- & gt and H & lt+ & gt ions are prevented from being combined, and the electrolytic efficiency is improved; the micro-polar distance between the cathode polar plate 31 and the anode polar plate 33 improves the efficiency of water electrolysis; the cathode plate 31 is made of porous electrode material, so that micro bubbles are generated, the electrolysis efficiency is improved, electrode scaling is avoided, the electrified voltage is 2-10V low voltage, and side reactions are small. The structural design of the membrane supporting plate 24.4 ensures uniform water distribution, uniform distribution of an internal flow field and high membrane flow velocity, and can timely discharge generated particles out of the system, avoid scaling and improve electrolysis efficiency. The traditional water electrolysis device has no hardness, the structure of the device has strong universality, the device has no requirement on electrolysis water, and low-hardness high-hardness water can be removed.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (4)
1. The electrocatalytic wastewater hardness removal device is characterized by comprising a supporting component and a plurality of electrocatalytic components (5) which are arranged on the supporting component in parallel, wherein each electrocatalytic component (5) is respectively connected with a magnetic power plug (12);
the electrocatalytic component (5) comprises a plurality of polar plate components (30) and a plurality of functional membrane components (24) which are alternately arranged and connected in a closed frame at intervals, and each functional membrane component (24) and the polar plate components (30) at two sides of the functional membrane component form a reaction unit; the polar plate assembly (30) comprises a baffle plate (32), and a cathode polar plate (31) and an anode polar plate (33) which are respectively connected to two sides of the baffle plate (32), wherein the anode polar plate (33) is one of a titanium plate, a titanium mesh, a carbon plate, a carbon mesh and a graphite plate; the cathode plate (31) is made of a porous electrode material and is one of a carbon plate, a carbon net, a titanium-containing plate structure, a titanium-containing net structure, an iron-containing plate structure, an iron-containing net structure, an aluminum-containing plate structure and an aluminum-containing net structure; the partition board is a non-metal insulating board and is one of plate structures made of PP, PE, PVC materials; a cathode cavity is formed between the cathode polar plate (31) and the functional membrane component (24), an anode cavity is formed between the anode polar plate (33) and the functional membrane component (24), each reaction unit comprises a cathode cavity and an anode cavity, and a plurality of reaction units are alternately arranged according to the anode cavity and the cathode cavity; the upper parts of the anode cavity and the cathode cavity are respectively provided with a water inlet, and the lower parts are respectively provided with a water outlet;
the functional membrane component (24) comprises a ring plate (24.2) with a through cavity in the middle and a functional membrane (24.1) arranged at the cavity of the ring plate (24.2), wherein the functional membrane (24.1) is a separation membrane for separating or selectively passing ions; the side wall of the annular plate (24.2) is provided with a magnetic limit screw (24.6);
the magnetic power plug (12) comprises a plug bracket (42) and a plurality of copper bars (41) arranged in through holes in the middle of the plug bracket (42), one end of each copper bar (41) is connected with a cathode polar plate (31) and an anode polar plate (33), the other end of each copper bar is connected with a lead, and copper sheets are respectively coated at the connecting ends of the cathode polar plate (31) and the anode polar plate (33) and the copper bars (41); a groove matched and clamped with the magnetic limit screw (24.6) is formed in the plug bracket (42), and a magnet (43) attracted with the magnetic limit screw (24.6) is arranged in the groove;
the support assembly comprises two side supporting legs (11) which are arranged at intervals, a liquid collecting groove (14) connected to the bottoms of the supporting legs (11), and cross beams (3) connected to the two sides of the tops of the supporting legs (11); a compression plate (4) which is vertically arranged is fixedly connected on one side of the supporting leg (11), the compression plate (4) is fixedly connected between the cross beams (3) at two sides, a stop plate (6) which is opposite to the compression plate (4) is arranged between the cross beams (3) at two sides, the stop plate (6) is in sliding connection with the cross beams (3) through pulleys (10), one side of the stop plate (6) is connected with an output shaft of an oil cylinder (9), a plurality of electrocatalytic components (5) are arranged on a liquid collecting tank (14) and are positioned between the compression plate (4) and the stop plate (6), and the oil cylinder (9) drives the stop plate (6) to move on the cross beams (3) along the arrangement direction of the electrocatalytic components (5) and mutually compress the electrocatalytic components (5);
the top of the compacting plate (4) is connected with an anode liquid inlet pipe orifice (2), and the bottom of the compacting plate is connected with a cathode liquid outlet pipe orifice (1); the top of the retaining plate (6) is connected with a cathode liquid inlet pipe orifice (8), and the bottom is connected with an anode liquid outlet pipe orifice (7); the anode liquid inlet pipe orifice (2) is connected with an anode liquid inlet pipe, the anode liquid inlet pipe is communicated with the water inlet of each anode cavity, the cathode liquid inlet pipe orifice (8) is connected with a cathode liquid inlet pipe, the cathode liquid inlet pipe is communicated with the water inlet of each cathode cavity, the cathode liquid outlet pipe orifice (1) is connected with a cathode liquid outlet pipe, the cathode liquid outlet pipe is communicated with the water outlet of each cathode cavity, the anode liquid outlet pipe orifice (7) is connected with an anode liquid outlet pipe, and the anode liquid outlet pipe is communicated with the water outlet of each anode cavity;
the top of the annular plate (24.2) is provided with an anode liquid inlet hole (24.5) and a cathode liquid inlet hole (24.8) respectively, the bottom of the annular plate is provided with an anode liquid outlet hole (24.3) and a cathode liquid outlet hole (24.9) respectively, wherein the anode liquid inlet hole (24.5) and the anode liquid outlet hole (24.3) are positioned on one side of the functional membrane assembly (24), and the cathode liquid inlet hole (24.8) and the cathode liquid outlet hole (24.9) are positioned on the other side of the functional membrane assembly (24);
the anode liquid inlet hole (24.5) and the anode liquid outlet hole (24.3) are communicated with the anode cavity and respectively serve as a water inlet and a water outlet of the anode cavity; the cathode liquid inlet hole (24.8) and the cathode liquid outlet hole (24.9) are communicated with the cathode cavity and are respectively used as a water inlet and a water outlet of the cathode cavity.
2. The electrocatalytic wastewater hardness removal device according to claim 1, wherein membrane support plates (24.4) located at the cavities are respectively arranged at two sides of the ring plate (24.2), the membrane support plates (24.4) comprise rectangular frames and a plurality of runner plates vertically connected in the rectangular frames at intervals, and the functional membranes (24.1) are located between the membrane support plates (24.4) at two sides.
3. The electrocatalytic wastewater hardness removal device according to claim 1, wherein the plug bracket (42) is connected with a protective cover (44), the protective cover (44) is covered on the outer side of the copper bar (41), an outgoing line hole (45) is formed in the bottom of the protective cover (44) for penetrating out a wire, and the wire is connected with the positive electrode and the negative electrode of the power supply respectively.
4. An electrocatalytic wastewater hardness removal device as claimed in claim 1, wherein the top of the compacting plate (4) is connected with a vent nozzle (15), the vent nozzle (15) being in communication with each anode chamber via a vent conduit.
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