The system of refinement treatment containing caldo
Technical field
The utility model is related to brine refining technical field, more particularly, to a kind of system of refinement treatment containing caldo.
Background technology
Refined brine generally existing at home and abroad is produced with rock salt bittern, refined bittern is except producing high-quality
Salt outside, can also directly supply chlor-alkali plant potroom and ammonia alkali factory workshop produces soda ash, and refined after produce a large amount of
The high high salt made from earth containing a comparatively high percentage of sodium chloride water of amount containing nitre has then become a process difficult problem.In prior art, high salt made from earth containing a comparatively high percentage of sodium chloride water and former halogen can be mixed by low processing capacity system
Close and carry out brine refining process again, and high throughput system, do not have preferable processing method to high salt made from earth containing a comparatively high percentage of sodium chloride water, cause money
The waste in source, the increase of processing cost.
Utility model content
The technical problems to be solved in the utility model is: in order to solve to produce purified salt for rock salt bittern in prior art
The processing method that the high salt made from earth containing a comparatively high percentage of sodium chloride water producing during water has not had, causes the problem of the waste of resource.The utility model carries
Supply a kind of system of refinement treatment containing caldo, high salt made from earth containing a comparatively high percentage of sodium chloride water has been passed through stepwise disposal and separation, on the one hand high salt made from earth containing a comparatively high percentage of sodium chloride water is entered
Go effective process, on the other hand produced the byproduct of high added value, resource output capacity is high, efficiently solves the wasting of resources
Problem.
The utility model solves its technical problem and be the technical scheme is that a kind of system of refinement treatment containing caldo,
Including: one section of chemical reaction bucket being sequentially communicated, one section of tubular membrane ultrafiltration apparatus, nanofiltration device, two sections of chemical reaction buckets, sulfuric acid
Calcium separator, three sections of chemical reaction buckets and two sections of tubular membrane ultrafiltration apparatus, described nanofiltration device has concentrated solution outlet and thoroughly
Cross liquid outlet, the concentrated solution outlet of described nanofiltration device is connected with two sections of chemical reaction buckets.
Preferably, described two sections of tubular membrane ultrafiltration apparatus are also communicated with blender.
Preferably, the permeate outlet of described nanofiltration device has blender.Blender herein can be single
Blender or the blender public with two sections of tubular membrane ultrafiltration apparatus.
Specifically, the material of the ultrafiltration tubular membrane of described one section of tubular membrane ultrafiltration apparatus and two sections of tubular membrane ultrafiltration apparatus is equal
For high-molecular organic material or inorganic material.
Preferably, the material of the ultrafiltration tubular membrane of described one section of tubular membrane ultrafiltration apparatus and two sections of tubular membrane ultrafiltration apparatus
It is Kynoar, polyether sulfone, polyacrylonitrile, aluminum oxide, carborundum or stainless steel.
Preferably, the surface of the ultrafiltration tubular membrane of described one section of tubular membrane ultrafiltration apparatus and two sections of tubular membrane ultrafiltration apparatus
Aperture is 20 ~ 200nm, and molecular cut off is 50000 ~ 500000dalton.
The beneficial effects of the utility model are:
(1) one kind refinement treatment containing caldo system that the utility model provides, is realized using advanced bi-membrane method technique
Brine refining denitration process, separate and have obtained low salt made from earth containing a comparatively high percentage of sodium chloride water and high salt made from earth containing a comparatively high percentage of sodium chloride aquatic products;
(2) one kind refinement treatment containing caldo system that the utility model provides, pioneering adds chlorine in high salt made from earth containing a comparatively high percentage of sodium chloride water
Change calcium, calcium oxide or calcium hydroxide, reaction generates calcium sulfate precipitation, obtains calcium sulfate former after processing through calcium sulfate separator
Material, can be used for preparing high strength gypsum product;
(3) one kind refinement treatment containing caldo system that the utility model provides, while realizing brine refining process,
Produce the byproduct of high added value, resource output capacity is high, remarkable in economical benefits.
Brief description
With reference to the accompanying drawings and examples the utility model is further illustrated.
Fig. 1 is the structural representation of the embodiment 1 of the system of refinement treatment containing caldo of the present utility model;
Fig. 2 is the structural representation of the embodiment 2 of the system of refinement treatment containing caldo of the present utility model.
In figure: 1. one section of chemical reaction bucket, 2. one section of tubular membrane ultrafiltration apparatus, 3. nanofiltration device, 4. two sections of chemical reactions
Bucket, 5. calcium sulfate separator, 6. three sections of chemical reaction buckets, 7. two sections of tubular membrane ultrafiltration apparatus, 8. blender.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limit.On the contrary, embodiment of the present utility model include falling into all in the range of the spirit of attached claims and intension
Change, modification and equivalent.
In description of the present utility model it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " axle
To ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or position relationship, be only for
It is easy to describe the utility model and simplifies description, rather than the device of instruction or hint indication or element must have specifically
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction or hint are relatively important
Property.In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " being connected ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected;It can be machine
Tool connects or electrically connects;Can be to be joined directly together it is also possible to be indirectly connected to by intermediary.For this area
For those of ordinary skill, concrete meaning in the utility model for the above-mentioned term can be understood with concrete condition.Additionally, in this reality
With, in new description, unless otherwise stated, " multiple " are meant that two or more.
Embodiment 1
As shown in figure 1, a kind of system of refinement treatment containing caldo, comprising: the one section of chemical reaction bucket 1, being sequentially communicated
Section tubular membrane ultrafiltration apparatus 2,3, two sections of chemical reaction buckets 4 of nanofiltration device, 5, three sections of chemical reaction bucket 6 and of calcium sulfate separator
Two sections of tubular membrane ultrafiltration apparatus 7, nanofiltration device 3 has concentrated solution outlet and permeate outlet, the concentrated solution outlet of nanofiltration device 3
Connect with two sections of chemical reaction buckets 4, the ultrafiltration tubular membrane of one section of tubular membrane ultrafiltration apparatus 2 and two sections of tubular membrane ultrafiltration apparatus 7
Material is Kynoar, polyether sulfone, polyacrylonitrile, aluminum oxide, carborundum or stainless steel, one section of tubular membrane ultrafiltration apparatus 2 He
The surface apertures of the ultrafiltration tubular membrane of two sections of tubular membrane ultrafiltration apparatus 7 are 100nm, and molecular cut off is 300000dalton.
Embodiment 2
As shown in Fig. 2 a kind of system of refinement treatment containing caldo, comprising: the one section of chemical reaction bucket 1, being sequentially communicated
Section tubular membrane ultrafiltration apparatus 2,3, two sections of chemical reaction buckets 4 of nanofiltration device, 5, three sections of chemical reaction bucket 6 and of calcium sulfate separator
Two sections of tubular membrane ultrafiltration apparatus 7, nanofiltration device 3 has concentrated solution outlet and permeate outlet, the concentrated solution outlet of nanofiltration device 3
Connect with two sections of chemical reaction buckets 4, two sections of tubular membrane ultrafiltration apparatus 7 are also communicated with blender 8, the permeate of nanofiltration device 3 goes out
Mouth is communicated with blender 8, and the material of the ultrafiltration tubular membrane of one section of tubular membrane ultrafiltration apparatus 2 and two sections of tubular membrane ultrafiltration apparatus 7 is
Kynoar, polyether sulfone, polyacrylonitrile, aluminum oxide, carborundum or stainless steel, one section of tubular membrane ultrafiltration apparatus 2 and two sections of pipes
The surface apertures of the ultrafiltration tubular membrane of formula film ultrafiltration apparatus 7 are 200nm, and molecular cut off is 50000dalton.
Specifically used method is:
When processing bittern using this system of refinement treatment containing caldo, first by bittern, naoh and na2co3It is added to together
Carry out deliming in one section of chemical reaction bucket 1, magnesium ion is processed, and is then fed into one section of tubular membrane ultrafiltration apparatus 2, remove in bittern
Impurity, suspended material and deposit, nanofiltration dress sent into after high-pressure pump lifting by the salt solution through one section of tubular membrane ultrafiltration apparatus 2
Put in 3, form low salt made from earth containing a comparatively high percentage of sodium chloride water through NF membrane, do not form high salt made from earth containing a comparatively high percentage of sodium chloride water through NF membrane part, high salt made from earth containing a comparatively high percentage of sodium chloride water sends into two sections of changes
Learn in reaction container 4, add calcium chloride, calcium oxide or calcium hydroxide reaction to generate calcium sulfate precipitation, obtain solidliquid mixture, then through sulphur
Sour calcium separator 5 is processed, and obtains calcium sulfate raw material, and mother liquor then enters in three sections of chemical reaction buckets 6, anti-in three sections of chemistry
Answer addition naoh and na in bucket 62co3Carry out deliming, magnesium ion process after send into two sections of tubular membrane ultrafiltration apparatus 7, carry out impurity,
Suspended material and the removal of deposit, low salt made from earth containing a comparatively high percentage of sodium chloride water is mixed all with two sections of tubular membrane ultrafiltration apparatus 7 permeate in blender 8
Even, obtain denitration salt solution.
Sediment calcium sulfate, can be used for producing high strength gypsum, is applied to decorated gypsum board, artwork Ornament, precision die
Produce, denitration salt solution can be as electrolysis with ion-exchange film alkaline raw material, for producing the products such as NaOH and chlorine, can satisfaction
The quality requirement to high-purity caustic soda for the industries such as fibre, pharmacy, calcium sulfate and NaOH are all the byproducts of high added value, and resource goes out
Yield is high, remarkable in economical benefits.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to described term
State and be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combine in an appropriate manner in any one or more embodiments or example.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited on specification with new technical scope it is necessary to determine its technology according to right
Property scope.