CN2507556Y

CN2507556Y - Electric ion exchanger regenerating device

Info

Publication number: CN2507556Y
Application number: CN01218849U
Authority: CN
Inventors: 王瑛
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-06
Filing date: 2001-04-06
Publication date: 2002-08-28
Anticipated expiration: 2011-04-06

Abstract

The utility model relates to an ion exchanger electrically regenerative device in the field of water processing, which comprises a selective ion exchange membrane, a baffle plate, a baffle screen, a uniform bracket, an electrode and a clamp device for the structure similar to that of the electric dialyzator. When the inactive ion exchange mixed with water is continuously injected into the device and DC power supply is simultaneously switched on, the water of the mixed solution is polarized and the regenerative replacement reaction occurs to H+ and OH<-> ion produced by ionization. The electrolyte ion replaced through the corresponding ion exchanging membrane under the electric field force forms aqueous concentrate which is discharged, and the regenerative ion exchanger continuously flows out. The positive ion exchanger and the negative ion exchanger or the mixture of the positive ion exchanger and the negative ion exchanger can be electrically regenerated by the device. The device only consumes electricity while no chemicals of acid, base or salt, which does not produce waste solution and waste water. The device has the advantage of compact structure, easy operation and maintenance, high efficiency, occupying small area, low investment and operation cost, efficient application of water resource and easy automation, thereby is applicable to regenerating the ion exchanger for electricity, chemical engineering, pharmaceuticals and water processing.

Description

A kind of ion-exchanger electricity regenerating unit

The utility model relates to a kind of electric regenerating unit of water technology intermediate ion exchanger.

Ion-exchange is to exchange with ion in the ion-exchanger and the ion in the liquid, thereby removes the method for specific ion in harmful ion in the liquid or the concentrated liquid.In industry, can produce demineralized water, desalted water and pure water by ion-exchange; Can produce multiple compound; The processing that in wastewater treatment, also is usually used in reclaiming precious metal ion and carries out various wastewater.At present, because ion-exchange reactivity height can concentrate the recovery utility, equipment is simple, and operation control is easy, and the scope of application is very wide.

But ion-exchange has a very obvious defects: i.e. the handling problem of the regeneration of ion-exchanger and regenerated liquid.To regenerate with chemical agents such as acid, alkali after the yin, yang ion-exchanger inefficacy through exchange, make it recover exchange capacity.There is following wretched insufficiency in this just renovation process:

1, the regenerative agent utilization rate is very low.The actual amount of regenerative agent normally theoretical value 2-5 doubly;

Produce a large amount of regeneration liquid wastes when 2, regenerating and clean waste water, not only corrosion pipeline is wasted resource, but also is polluted the environment, and destroys the ecological balance;

3, regenerative operation is loaded down with trivial details, and working condition is bad;

The purpose of this utility model and task are exactly at the defective of prior art and deficiency, according to the electrodeionization ratio juris, a kind of electric regenerating unit of ion-exchanger is provided, this device electrification, chemical agents such as consumption acids, alkali, salt not, there are not waste liquid and discharge of wastewater, have that device is simple, easy to use, operating cost is low, advantage such as easily be automated.

The utility model is achieved through the following technical solutions:

1, the device of forming similar electric dialyzator by selective ion exchange membrane, dividing plate, filter, uniform bracing frame and electrode;

2, according to the type of pending inefficacy ion-exchanger, select various combination form for use with upper-part, can form the electric regenerating unit of handling yin, yang ion-exchanger or zwitterion exchanger mixture respectively;

3, the inefficacy ion-exchanger that will mix with water feeds this device continuously, connects dc source simultaneously, forms DC electric field, and the water in the mixed liquor is polarized, and ionization produces abundant H ⁺And OH ^-The regeneration displacement reaction takes place in the ion-exchanger of ion and inefficacy, and the electrolyte ion that displaces carries out selective migration under the effect of electric field force, sees through corresponding amberplex, forms concentrated water drainage and falls; Ion-exchanger through regeneration then continuously outflows this device.

Accompanying drawing 1 is an ion-exchanger electricity regenerating unit structural representation.

Accompanying drawing 2 is the regeneration room structural representation.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

The utility model is that employing changes the structure of common electrical dialyzer freshwater room dividing plate and constitutes regeneration room.Parts such as this device mainly comprises electrode 7, clamping device 8, membrane stack 9, treats regenerating resin intake channel 10, regeneration back resin exit passageway 11, dense water gateway 12; It is right that membrane stack is divided into some groups of films, and every group of film can flow through ion-exchanger to be regenerated 13 to being made up of regeneration room dividing plate 1, resin flow channel 2, concentrated stream road 3, uniform bracing frame 4, selective ion exchange membrane 5, dense hydroecium dividing plate 6 in the regeneration room; Amberplex can be selected anode membrane or cavity block for use according to the difference for the treatment of regenerating ion exchanger.Some groups of films constitute some regeneration room and dense hydroeciums to alternately arranging to being arranged in order as method; The membrane stack two ends are respectively positive and negative electrode, with clamping device above assembly are assembled into an integral body, to guarantee its sealing.

The dividing plate that the utility model adopts is to be made by non-conductor and non-absorbent material, and material should have certain elasticity, to guarantee excellent sealing performance.The common used material that possesses above performance has: natural or synthetic rubber, polyethylene, polyvinyl chloride, polypropylene, and other organic synthesis material.The varied in thickness scope of regeneration room dividing plate is 5～50mm; Dense hydroecium block board thickness is generally 0.5～2.0mm.

Ion-exchanger electricity regenerating unit is used for:

1, selects the renewable anionite of anion-exchange membrane for use;

2, select the renewable cation-exchanger of cation-exchange membrane for use;

3, select the combination of yin, yang amberplex for use, the mixture of renewable yin, yang ion-exchanger.

Claims

1, a kind of ion-exchanger electricity regenerating unit, parts such as it mainly comprises electrode 7, clamping device 8, membrane stack 9, treats regenerating resin intake channel 10, regeneration back resin exit passageway 11, dense water gateway 12; It is right that membrane stack is divided into some groups of films, and every group of film is to being made up of regeneration room dividing plate 1, resin flow channel 2, concentrated stream road 3, uniform bracing frame 4, selective ion exchange membrane 5, dense hydroecium dividing plate 6; It is characterized in that some groups of films to being arranged in order, constitute some regeneration room and dense hydroeciums alternately arranging as method; The membrane stack two ends are respectively positive and negative electrode, with clamping device above assembly are assembled into an integral body again.

2, according to the described ion-exchanger electricity of claim 1 regenerating unit, the thickness range that it is characterized in that the regeneration room dividing plate is 5-50mm.

3, according to the described ion-exchanger electricity of claim 1 regenerating unit, it is characterized in that dense hydroecium block board thickness is generally 0.5-2.0mm.

4,, it is characterized in that dividing plate adopts non-conductor and non-absorbent material to make according to the described ion-exchanger electricity of claim 1 regenerating unit.

5,, it is characterized in that amberplex can select anode membrane or cavity block for use according to different needs according to the described ion-exchanger of claim 1 electricity regenerating unit.