CN109078360A - Divide intercept form adsorption desorption device and its application - Google Patents
Divide intercept form adsorption desorption device and its application Download PDFInfo
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- CN109078360A CN109078360A CN201811056310.XA CN201811056310A CN109078360A CN 109078360 A CN109078360 A CN 109078360A CN 201811056310 A CN201811056310 A CN 201811056310A CN 109078360 A CN109078360 A CN 109078360A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3441—Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- 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
- C02F2303/16—Regeneration of sorbents, filters
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Abstract
The present invention discloses one kind point intercept form electric field-assisted adsorption desorption device, including absorption cylinder, upper capping and lower capping, the upper capping is equipped with fluid inlet, the lower capping is equipped with fluid outlet, the absorption cylinder includes several points of truncated cylinder bodies for cutting setting, first conductive supporting net is installed between adjacent truncated cylinder body, the second conductive supporting net, the first conductive supporting net and the second conductive supporting net are installed for providing ion displacement electric field after application of a voltage in the first conductive supporting net above and or below in described point of intercept form adsorption desorption device.It is of the invention to divide intercept form adsorption desorption device, adsorbent can timely and effective section displacing, the pressure of absorption column bottom adsorbent can be effectively relieved in conductive supporting net, reduce that adsorbent is broken and molten damage.And conductive supporting net can extra electric field, accelerate Ion transfer, furthermore the online neutral film of conductive supporting or cationic membrane can accelerate ion mobility under electric field action, shorten desorption time, improve desorption rate.
Description
Technical field
It is especially a kind of to divide intercept form adsorbing separation to fill with conductive supporting net the present invention relates to a kind of adsorption separation device
It sets.
Background technique
It is huge to contain salts resources, the potential age deductions such as potassium abundant, magnesium, lithium, boron in China salt lake.Only Qinghai Province
Salt lake in, possess B2O31152.5 ten thousand tons of reserves, 1388.6 ten thousand tons of LiCl reserves, SrSO41589.5 ten thousand tons of reserves, liquid bromine
181.3 kiloton of mine, 7.8 kiloton of liquid iodine mine, 38 kiloton of liquid rubidium mine and certain liquid caesium ore resources.Absorption method is suitable for
The exploitation of the resources such as boron, lithium, iodine, bromine, rubidium, caesium, strontium.Also containing elements such as certain bromine, iodine, lithium, strontiums in seawater, especially
Absorption method is used in the extraction of lithium, strontium.
Absorption method is one of water sample or several components to be adsorbed in surface using porous solid absorbent, then use
Prediction group is decomposed in the methods of suitable solvent, heating or air blowing inhales, and achievees the purpose that separation and a kind of method of enrichment.On a large scale
Adsorbing separation extraction carries out generally in adsorption column, is typical Dynamic Adsorption.During dynamic is inhaled, is desorbed, temperature, pressure
Power, flow rate of liquid, the draw ratio of adsorption column, viscosity of the mode of entrance of fluid, fluid etc. all affect the mistake of suction, desorption closely
Journey and efficiency.During dynamic column absorption, the structure and design of adsorption column are preferential to the flow velocity of fluid, suction in adsorption process
The draw ratio of attached column has direct influence.In industrial processes, adsorption tower is mostly integral type, this there is adsorption column
The problems such as bottom adsorbent is effectively replaced because of system pressure cracky, the molten loss rate height of adsorbent, adsorbent inconvenience.
For example, a kind of quick efficient absorption column easy to install involved in CN106630211A, adsorption column band prefiltration card
Disk and filter screen, the filter screen are located at the top of adsorption column, and filter screen main function is timely adjusting filter diameter, for difference
Occasion, the sewage initial filter of different impurities content, main effect are filterings.
In another example one kind involved in CN105692756A is easy to operate, the multisection type adsorption column of easy cleaning, by longer cylinder
It is divided into upper, middle and lower segment formula, main purpose is reduction of the length of segmentation, is readily transported, mounts and dismounts.The invention
Although being also equipped with strainer, the main function of strainer is still that filtering is used.
In the prior art, although also there is point intercept form adsorption column with strainer, the installation site of strainer is different, strainer master
Play filtering.The installation of the strainer is to desorption process and the raising of efficiency is desorbed without effect.
Summary of the invention
The main purpose of the present invention is to provide one kind to divide intercept form adsorption desorption device and application, in the prior art to overcome
It is insufficient.
For achieving the above object, present invention employs following technical solutions:
The embodiment of the invention provides one kind to divide intercept form adsorption desorption device, including absorption cylinder, upper capping and lower capping, institute
Capping is stated equipped with fluid inlet, the lower capping is equipped with fluid outlet, and the absorption cylinder includes several points and cuts setting
Truncated cylinder body, the first conductive supporting net is installed between adjacent truncated cylinder body, is led in described point of intercept form adsorption desorption device first
The above and or below of electric supporting network is equipped with the second conductive supporting net, the first conductive supporting net and the second conductive supporting
Net for providing the electric field of ion displacement after application of a voltage.
In some embodiments, the absorption cylinder includes a point first truncated cylinder body and the second truncated cylinder body for section setting, described
First conductive supporting net is installed between the first truncated cylinder body and the second truncated cylinder body.
The embodiment of the invention also provides described point of intercept form adsorption desorptions to be installed on the purposes in ionic adsorption separation.
Compared with the prior art, the beneficial effects of the present invention are:
(1) provided in an embodiment of the present invention point of intercept form adsorption desorption device has conductive supporting net, and design is reasonable, adsorbent
Can timely and effectively section displacing, the molten damage of adsorbent can be effectively reduced, effectively improve adsorbent desorption rate.
(2) absorption can be effectively relieved in provided in an embodiment of the present invention point of intercept form adsorption desorption device, conductive supporting net therein
The pressure of column bottom adsorbent, adsorbent are effectively relieved because of Fragmentation Phenomena caused by bearing pressure, can effectively reduce adsorbent
Molten damage；Secondly, conductive supporting net sheet is as conductive material, it can be with extra electric field, by external certain between conductive supporting net
The DC power supply of voltage accelerates the migration of ion, and furthermore the online neutral film of conductive supporting or cationic membrane are under electric field action
The migration rate that can accelerate ion can be shortened desorption time during desorption, effectively improve desorption rate.
Detailed description of the invention
Fig. 1 is the longitudinal sectional view of point intercept form adsorption desorption device in a typical embodiments of the invention；
Fig. 2 is the portion the Z enlarged drawing in Fig. 1；
Fig. 3 is F-F in Fig. 1 to interface bottom view.
Specific embodiment
For many defects of the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose the present invention
Technical solution.The technical solution, its implementation process and principle etc. will be further explained as follows.But it should
Understand, within the scope of the present invention, each technology specifically described in above-mentioned each technical characteristic of the invention and below (embodiment)
It can be combined with each other between feature, to constitute new or preferred technical side's scheme.As space is limited, herein no longer one by one
It is tired to state.
As the one aspect of technical solution of the present invention, involved in be one kind point intercept form adsorption desorption device, including inhale
Attached column body, upper capping and lower capping, the upper capping are equipped with fluid inlet, and the lower capping is equipped with fluid outlet, described
Absorption cylinder includes several points of truncated cylinder bodies for cutting setting, is equipped with the first conductive supporting net between adjacent truncated cylinder body, and described point
The second conductive supporting net is installed in the above and or below of the first conductive supporting net in intercept form adsorption desorption device, described first
Conductive supporting net and the second conductive supporting net for providing the electric field of ion displacement after application of a voltage.
In some embodiments, the absorption cylinder includes point first truncated cylinder body and the second truncated cylinder body that cut setting, institute
The first conductive supporting net is stated to be installed between the first truncated cylinder body and the second truncated cylinder body.
It is first that the first truncated cylinder body is consolidated with conductive supporting net by upper section before the first truncated cylinder body and the second truncated cylinder body are fixed
Calmly, the first truncated cylinder body and the second truncated cylinder body are fixed after.
In some preferred embodiments, the second conductive supporting net includes conductive supporting net and/or the on second
Two descend conductive supporting nets, and conductive supporting net is installed between the upper capping and the first truncated cylinder body on described second, and described second
Lower conductive supporting net is installed between the lower capping and the second truncated cylinder body.
In some embodiments, it is fixed between the truncated cylinder body of described several points sections of settings by conductive screw, and coaxial
Fixed seal ring, to ensure that fluid is non-leakage.
In some embodiments, described point of intercept form adsorption desorption device further includes at least one adsorbent adding mouth, described
Adsorbent adding mouth is set in absorption cylinder and/or upper capping.
Adsorbent adding mouth can be set on the top and upper capping of absorption cylinder, can also be with for adding adsorbent
It is set to the lower part of absorption cylinder, for replacing adsorbent.
In some embodiments, a side surface of the first conductive supporting net and/or the second conductive supporting net is adhered to
There are neutral film or cationic membrane.
In some embodiments, external direct current power supply between the first conductive supporting net and the second conductive supporting net.
Further, the voltage of the DC power supply is 0-24V.
In some preferred embodiments, the lower surface of the first conductive supporting net is attached with neutral film, and described
The lower surface of two conductive supporting nets is attached with cationic membrane.
In some preferred embodiments, the aperture of the first conductive supporting net and the second conductive supporting net is 5-50
Mesh.
In some embodiments, the material of the first conductive supporting net and the second conductive supporting net is titanium alloy or stone
Black plate.
The conductive supporting net is electrically conductive, corrosion-resistant.
The embodiment of the present invention also provides the purposes that point intercept form adsorption desorption is installed in ionic adsorption separation.
This divides intercept form adsorption desorption device for desorption process, can be used in salt lake bittern, seawater and metal ion solution
The separation of lithium, rubidium, caesium, strontium etc..By extra electric field assisted desorption, when the desorption efficiency of adsorbent is compared with no electric field, desorption rate is mentioned
High 5-15%.
Below with reference to several preferred embodiments and attached drawing, further details of the technical solution of the present invention, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all belongs to
In the scope of protection of the invention.The implementation condition used in following embodiment can do further adjustment according to actual needs,
The implementation condition being not specified is usually the condition in routine experiment.
As shown in FIG. 1 to 3, a point intercept form adsorption desorption device of the invention includes: fluid inlet 1, upper capping 2, adsorbent
Adding mouth 3,11 adsorbs cylinder 4, conductive supporting net 5,14,15, fluid outlet 6, gasket 8,9, conductive screw 7,10, adsorbent
Replacement port 12, lower capping 13.
Fluid inlet 1 is set in capping, and fluid outlet 6 is set in lower capping, and absorption cylinder 4 is arranged including two-section
Truncated cylinder body, i.e. the first truncated cylinder body and the second truncated cylinder body.First conductive branch is installed between the first truncated cylinder body and the second truncated cylinder body
Net is supportted, the second conductive supporting net is installed in point intercept form adsorption desorption device above and below the first conductive supporting net, second
Upper conductive supporting net is installed between capping and the first truncated cylinder body, and the second lower conductive supporting net is installed on lower capping and second section
Between cylinder, the first conductive supporting net and the second conductive supporting net for providing the electricity of ion displacement after application of a voltage
?.Divide between the truncated cylinder body for cutting setting and fixed by conductive screw 7,10, and coaxial fixed seal ring, to ensure that fluid is not permeable
Leakage.Point intercept form adsorption desorption device further includes adsorbent adding mouth 3,11 and adsorbent replacement port 12, is set to absorption cylinder and upper
In capping.The aperture of first conductive supporting net and the second conductive supporting net is 5-50 mesh, the first conductive supporting net and the second conduction
The material of supporting network is titanium alloy or graphite plate.
The lithium adsorbent that particle mesh number is 40 mesh is added by adsorbent adding mouth 3 in adsorption desorption device, adsorbent solution contains
Lithium brine flows through adsorption column by fluid inlet 1, with the flow velocity of 200mL/h, stops feed liquor after adsorbing 2h, passes through fluid inlet 1
It is desorbed after adding water to get adsorbent express developed.Water enters from fluid inlet 1, cylinder is flowed through with the flow velocity of 200mL/h, in conduction
By conductive screw external direct current power supply between supporting network 5 and conductive supporting net 14, supply voltage 5V, wherein conductive supporting net 5
It being connect with power cathode, conductive supporting net 14 is connect with positive pole, and wherein 14 lower surface of conductive supporting net has cationic membrane,
Has neutral film in 5 lower surface of conductive supporting net.It is desorbed and continues 8.5h, the desorption rate of lithium has 89.7% at this time, inhales after circulation 12 times
Attached dose of molten loss rate is 1.2%.
Above-mentioned experiment is carried out in parallel, and the not external direct current power supply in desorption process, desorption persistently carries out 8.5h, at this time lithium
Desorption rate is 83.4%, and the molten loss rate of adsorbent is 5.8% after circulation 12 times.
In other embodiments, dividing intercept form adsorption desorption device includes absorption cylinder, upper capping and lower capping, is set in upper capping
There is a fluid inlet, lower capping is equipped with fluid outlet, and absorption cylinder 4 may include three sections or three sections or more of truncated cylinder body, and one group
First conductive supporting net is installed between adjacent truncated cylinder body, is divided in intercept form adsorption desorption device in the top of the first conductive supporting net
And/or lower section is equipped at least one second conductive supporting net, the second conductive supporting net can between adjacent truncated cylinder body,
It can also be located between upper capping and a truncated cylinder body, or be located between lower capping and a truncated cylinder body.First conductive supporting net with
Second conductive supporting net can be deposited for providing the electric field of ion displacement, the electric field of ion displacement after application of a voltage
It is between the first conductive supporting net and the second conductive supporting net, can also exist between the second conductive supporting net, it can also be with
It exists simultaneously between the first conductive supporting net and the second conductive supporting net and between the second conductive supporting net.Divide and cuts setting
It is fixed between truncated cylinder body by conduction screw, and coaxial fixed seal ring, to ensure that fluid is non-leakage.Divide intercept form adsorption desorption device
It further include several adsorbent adding mouths, addition and replacement for adsorbent.First conductive supporting net and the second conductive supporting
The aperture of net is 5-50 mesh, and the material of the first conductive supporting net and the second conductive supporting net is titanium alloy or graphite plate.In addition, the
One side surface of one conductive supporting net and/or the second conductive supporting net is attached with neutral film or cationic membrane, to accelerate ion
Migration rate, can be shortened desorption time during desorption, effectively improve desorption rate.
This point of intercept form adsorption desorption device is used for ionic adsorption separation, can be used for salt lake bittern, seawater and metal ion
The separation of lithium, rubidium, caesium, strontium etc. in solution.By extra electric field assisted desorption, when the desorption efficiency of adsorbent is compared with no electric field, take off
Attached rate improves 5-15%.
It should be noted that, in this document, under normal circumstances, the element limited by sentence " including ... ", not
There is also other identical elements in including the steps that the element, process, method or experimental facilities for exclusion.
It should be appreciated that the technical concepts and features of example described above only to illustrate the invention, it is familiar its object is to allow
The people of technique is to can understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.
It is all any equivalent transformation or modification made according to the spirit of the present invention, should be covered by the protection scope of the present invention.
Claims (10)
1. one kind divides intercept form adsorption desorption device, including absorption cylinder, upper capping and lower capping, the upper capping to enter equipped with fluid
Mouthful, the lower capping is equipped with fluid outlet, it is characterised in that: and the absorption cylinder includes several points of truncated cylinder bodies for cutting setting,
First conductive supporting net is installed between adjacent truncated cylinder body, it is described to divide in intercept form adsorption desorption device in the first conductive supporting net
Above and or below is equipped with the second conductive supporting net, and the first conductive supporting net is with the second conductive supporting net for applying
The electric field of ion displacement is provided after making alive.
2. according to claim 1 point of intercept form adsorption desorption device, it is characterised in that: the absorption cylinder includes a point section setting
The first truncated cylinder body and the second truncated cylinder body, the first conductive supporting net is installed between the first truncated cylinder body and the second truncated cylinder body.
3. according to claim 2 point of intercept form adsorption desorption device, it is characterised in that: the second conductive supporting net includes the
Conductive supporting net and/or the second lower conductive supporting net on two, conductive supporting net is installed on the upper capping and the on described second
Between one truncated cylinder body, the described second lower conductive supporting net is installed between the lower capping and the second truncated cylinder body.
4. according to claim 1 point of intercept form adsorption desorption device, it is characterised in that: described several points are cut the truncated cylinder body being arranged
Between fixed by conductive screw.
5. according to claim 1 point of intercept form adsorption desorption device, it is characterised in that: described point of intercept form adsorption desorption device also wraps
At least one adsorbent adding mouth is included, the adsorbent adding mouth is set in absorption cylinder and/or upper capping.
6. according to claim 1 point of intercept form adsorption desorption device, it is characterised in that: the first conductive supporting net and/or
One side surface of the second conductive supporting net is attached with neutral film or cationic membrane.
7. according to claim 1 point of intercept form adsorption desorption device, it is characterised in that: the first conductive supporting net and second
External direct current power supply between conductive supporting net；Preferably, the voltage of the DC power supply is 0-24V.
8. according to claim 7 point of intercept form adsorption desorption device, it is characterised in that: the following table of the first conductive supporting net
Face is attached with neutral film, and the lower surface of the second conductive supporting net is attached with cationic membrane.
9. according to claim 1 point of intercept form adsorption desorption device, it is characterised in that: the first conductive supporting net and second
The aperture of conductive supporting net is 5-50 mesh；And/or the material of the first conductive supporting net and the second conductive supporting net is that titanium closes
Gold or graphite plate.
10. according to any one of claims 1 to 9 point of intercept form adsorption desorption is installed on the purposes in ionic adsorption separation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811056310.XA CN109078360B (en) | 2018-09-11 | 2018-09-11 | Sectioning type adsorption and desorption device and application thereof |
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| CN201811056310.XA CN109078360B (en) | 2018-09-11 | 2018-09-11 | Sectioning type adsorption and desorption device and application thereof |
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