阅读说明：本技术 冷析法高盐废水处理方法 (Cold analysis method treatment method for high-salinity wastewater ) 是由 李星毅 徐虹 黄祁 于 2019-09-16 设计创作，主要内容包括：本发明属于污水处理技术领域,具体涉及一种冷析法高盐废水处理方法。本方法包括以下步骤：S1、原液进入结晶罐内,原液受冷温度下降,进行冷却结晶,形成第一冰晶,原液浓度增大形成浓缩液；S2、第一冰晶从结晶罐内排出进入冰洗涤柱内,经喷淋机构喷淋进行净化去污,形成第二冰晶,净化后的第二冰晶从冰洗涤柱内排出,第二冰晶排出成为纯水,喷淋水与第二冰晶上残留的浓缩液混合成为洗液。本发明的冷析法高盐废水处理方法,运行成本低,在废水处理中仅消耗电能；能耗低,冷却浓缩的能耗远低于蒸发浓缩方法；可实现零排放,在废水处理过程中不产生新的废水废气；系统可靠,整个系统在较低的温度下运行,无腐蚀、结垢等问题。(The invention belongs to technical field of sewage, and in particular to a kind of cold analysis method treatment method for high-salinity wastewater.This method is the following steps are included: S1, stoste enter in crystallizing tank, and the decline of stoste cold temperature carries out crystallisation by cooling, forms the first ice crystal, and original liquid concentration increases to form concentrate；S2, the first ice crystal are discharged into ice column scrubber out of crystallizing tank, purification decontamination is carried out through spraying mechanism spray, forms the second ice crystal, purified second ice crystal is discharged out of ice column scrubber, the discharge of second ice crystal becomes pure water, and remaining concentrate is mixed into washing lotion on shower water and the second ice crystal.Cold analysis method treatment method for high-salinity wastewater of the invention, operating cost is low, only consumes electric energy in the treatment of waste water；Low energy consumption, and the energy consumption of cooling concentration is far below evaporating concentrating method；Zero-emission can be achieved, do not generate new waste water and gas in wastewater treatment process；The problems such as system is reliable, and whole system is run at a lower temperature, corrosion-free, fouling.)

1. a kind of cold analysis method treatment method for high-salinity wastewater, characterized in that the following steps are included:

S1, stoste enter in crystallizing tank, and the decline of stoste cold temperature carries out crystallisation by cooling, forms the first ice crystal, and original liquid concentration increases It is big to form concentrate；

S2, the first ice crystal are discharged into ice column scrubber out of crystallizing tank, carry out purification decontamination through spraying mechanism spray, form the Two ice crystals, purified second ice crystal are discharged out of ice column scrubber, and the discharge of the second ice crystal becomes pure water, shower water and the second ice crystal Upper remaining concentrate is mixed into washing lotion.

2. cold analysis method treatment method for high-salinity wastewater as described in claim 1, it is characterized in that: in step sl, it will be in crystallizing tank The concentrate of formation flows back into crystallizing tank and mixes with stoste, so that solution concentration is stablized in crystallizing tank.

3. cold analysis method treatment method for high-salinity wastewater as described in claim 1, it is characterized in that: in step s 2, by ice column scrubber The washing lotion of interior formation flows back into crystallizing tank and mixes with stoste, carries out circular treatment.

4. cold analysis method treatment method for high-salinity wastewater as described in claim 1, it is characterized in that: in step s 2, by ice column scrubber Part the second ice crystal heating and melting of interior discharge becomes washing water, and the washing water is used for spraying mechanism as shower water.

5. cold analysis method treatment method for high-salinity wastewater as described in claim 1, it is characterized in that: in step sl, in crystallizing tank Blender is stirred the liquid in crystallizing tank, promotes the first ice crystal continuous-stable to generate, and by established first ice crystal It is separated with concentrate.

Technical field

The invention belongs to technical field of sewage, and in particular to a kind of cold analysis method treatment method for high-salinity wastewater.

Background technique

With the improvement of modern technology, the raising of environmental requirement, current some industrial trades are discharged a large amount of useless Often containing a large amount of chemical substances etc. in water.Waste component complexity, enormous amount in the industries such as petroleum, chemical industry, pharmacy, plating, Although part high concentration is difficult using most of water body qualified discharge can be achieved after the methods of biochemistry, electrodialysis, reverse osmosis processing Degradation Industrial Wastewater Treatment is still technological difficulties.Evaporation is one of most common Waste water concentrating method of country facilities at present, but Whether MVR (mechanical steam recompression technology) or multiple-effect evaporation, be using vapo(u)rization system itself generate steam and Its energy, by Waste water concentrating to purified treatment sewage.But the energy consumption provided to vapo(u)rization system is very high, and operating cost is high, and And equipment scaling is serious, corrosion is obvious, hinders the permanently effective continuous operation of system.

Summary of the invention

The object of the present invention is to provide a kind of cold analysis method treatment method for high-salinity wastewater, to solve previous evaporation at waste water High energy consumption, high-cost technical problem in reason.

In order to solve the above-mentioned technical problems, the present invention provides a kind of cold analysis method treatment method for high-salinity wastewater, including it is following Step:

S1, stoste enter in crystallizing tank, and the decline of stoste cold temperature carries out crystallisation by cooling, forms the first ice crystal, and original liquid concentration increases It is big to form concentrate；

S2, the first ice crystal are discharged into ice column scrubber out of crystallizing tank, carry out purification decontamination through spraying mechanism spray, form the Two ice crystals, purified second ice crystal are discharged out of ice column scrubber, and the discharge of the second ice crystal becomes pure water, shower water and the second ice crystal Upper remaining concentrate is mixed into washing lotion.

Further, in step sl, the concentrate formed in crystallizing tank crystallizing tank is flowed back into mix with stoste, so that Solution concentration is stablized in crystallizing tank.

Further, in step s 2, the washing lotion formed in ice column scrubber is flowed back into crystallizing tank to mix with stoste, is carried out Circular treatment.

Further, in step s 2, part the second ice crystal heating and melting being discharged in ice column scrubber is become into washing water, institute It states washing water and is used for spraying mechanism as shower water.

Further, in step sl, the blender in crystallizing tank is stirred the liquid in crystallizing tank, promotes the first ice Brilliant continuous-stable generates, and established first ice crystal and concentrate are separated.

The invention has the advantages that cold analysis method treatment method for high-salinity wastewater of the invention, operating cost is low, at waste water Electric energy is only consumed in reason；Low energy consumption, and the energy consumption of cooling concentration is far below evaporating concentrating method；Zero-emission can be achieved, at waste water New waste water and gas is not generated during reason；System is reliable, and whole system is run at a lower temperature, corrosion-free, fouling etc. Problem.

Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims And specifically noted structure is achieved and obtained in attached drawing.

To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.

Detailed description of the invention

It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the process flow chart of the preferred embodiment of cold analysis method treatment method for high-salinity wastewater of the invention.

Specific embodiment

In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, shall fall within the protection scope of the present invention.

The working principle of the invention:

The water-setting in waste water is formed into ice crystal by refrigeration system, ice crystal has in forming process natural exclusiveness and generated The water of pure solid state, to purify waste water.

Using the equilibrium principle into process of refrigerastion between aqueous solution and ice in implementation, the principle is as follows:

The decline of solution cold temperature, its concentration is constant before freezing point；Reach freezing point of solution after, in solution a part of solvent because The presence of solution nucleus and crystallize precipitation, remaining solution concentration will constantly rise；Continue cooling solution, until reaching solution most Euttctlc point, solvent ice crystal is largely precipitated in solution.

Fig. 1 is the process flow chart of the preferred embodiment of cold analysis method treatment method for high-salinity wastewater of the invention.

As shown in Figure 1, the cold analysis method treatment method for high-salinity wastewater of the present embodiment, comprising the following steps:

S1, stoste enter in crystallizing tank, mix in refrigerant injection crystallizing tank with stoste, under the action of refrigerant, crystallizing tank Interior temperature decline, the decline of stoste cold temperature.After temperature reaches the freezing point of mixed liquor, the water in stoste carries out cooling knot Crystalline substance, forms the first ice crystal, and the concentration of stoste increases to form concentrate.

S2, the first ice crystal are discharged into ice column scrubber out of crystallizing tank, by the spraying mechanism of ice column scrubber to first Ice crystal carries out spray washing, purifies decontamination, removes the impurity soiling solution of the first ice crystal surface, forms the second ice crystal, ice column scrubber Ice scraper scrapes purified second ice crystal out of ice column scrubber, and the discharge of the second ice crystal becomes pure water, shower water and the second ice Remaining concentrate is mixed into washing lotion on crystalline substance.

Stoste is cooled down by crystallizing tank, stoste is made to generate the water of pure solid state, forms the first ice crystal simultaneously It is precipitated, to purify waste water.Operating cost is low, only consumes electric energy in the treatment of waste water, and low energy consumption, and the energy consumption of cooling concentration is far low In evaporating concentrating method.First ice crystal enters ice column scrubber and carries out spray decontamination purification, forms the second ice crystal and is then discharged out, realizes Zero-emission does not generate new waste water and gas in wastewater treatment process.System is reliable, and whole system is transported at a lower temperature The problems such as row, corrosion-free, fouling.

Fig. 1 is the process flow chart of the preferred embodiment of cold analysis method treatment method for high-salinity wastewater of the invention.

As shown in Figure 1, in step sl, the blender in crystallizing tank is stirred the liquid in crystallizing tank, promote One ice crystal continuous-stable generates, so that the crystallization of water is more abundant, and established first ice crystal and concentrate is separated.

Fig. 1 is the process flow chart of the preferred embodiment of cold analysis method treatment method for high-salinity wastewater of the invention.

As shown in Figure 1, in step sl, the sub-fraction of the concentrate formed in crystallizing tank is returned by the first return pipe Stream enters crystallizing tank and mixes with stoste, is recycled, so that the concentration of solution is stablized in crystallizing tank, what is formed in crystallizing tank is dense Most of contracting liquid is kept in or is discharged into ice column scrubber in crystallizing tank.

Fig. 1 is the process flow chart of the preferred embodiment of cold analysis method treatment method for high-salinity wastewater of the invention.

As shown in Figure 1, in step s 2, part the second ice crystal heating and melting being discharged in ice column scrubber is become washing Water, the washing water are used for spraying mechanism as shower water.It is self-sufficient without being additionally provided water source supply spraying mechanism, fortune Row is at low cost, only consumes electric energy in the treatment of waste water, system is reliable.

Fig. 1 is the process flow chart of the preferred embodiment of cold analysis method treatment method for high-salinity wastewater of the invention.

As shown in Figure 1, in step s 2, the washing lotion formed in ice column scrubber is flowed back into crystallization by the second return pipe Tank is mixed with stoste, carries out circular treatment recycling.It realizes zero-emission, it is useless not to generate new waste water in wastewater treatment process Gas.

As shown in Figure 1, in practical operation of the invention:

Stoste enters in crystallizing tank, mixes in refrigerant injection crystallizing tank with stoste, warm in crystallizing tank under the action of refrigerant Degree decline, the decline of stoste cold temperature.After temperature reaches the freezing point of mixed liquor, the water in stoste carries out crystallisation by cooling, shape At the first ice crystal, the concentration of stoste increases to form concentrate.Blender in crystallizing tank is stirred the liquid in crystallizing tank, Promote the first ice crystal continuous-stable to generate, so that the crystallization of water is more abundant, and established first ice crystal and concentrate is carried out Separation.The sub-fraction of the concentrate formed in crystallizing tank flows back into crystallizing tank by the first return pipe and mixes progress with stoste It recycles, most of the concentrate formed in crystallizing tank is kept in or be discharged in crystallizing tank.

First ice crystal is discharged into ice column scrubber out of crystallizing tank, is carried out spray to the first ice crystal through spraying mechanism and is washed It washs, purifies decontamination, remove the impurity of the first ice crystal surface, form the second ice crystal, the ice scraper of ice column scrubber is by purified the Two ice crystals are scraped out of ice column scrubber, and the discharge of the second ice crystal becomes pure water, and remaining concentrate is mixed on shower water and the second ice crystal Synthesize washing lotion.Part the second ice crystal heating and melting being discharged in ice column scrubber becomes washing water, and washing water is made for spraying mechanism For shower water use.The washing lotion formed in ice column scrubber flows back into crystallizing tank by the second return pipe and mixes with stoste, carries out Circular treatment recycles.

The cold analysis method treatment method for high-salinity wastewater of the invention is used in summary, and operating cost is low, in the treatment of waste water only Consume electric energy；Low energy consumption, and the energy consumption of cooling concentration is far below evaporating concentrating method；Zero-emission can be achieved, in wastewater treatment process In do not generate new waste water and gas；The problems such as system is reliable, and whole system is run at a lower temperature, corrosion-free, fouling.

The each device (component of undeclared specific structure) selected in the application is universal standard part or this field skill The component that art personnel know, structure and principle are all that this technology personnel can learn by technical manual or pass through routine experiment Method is known.

In the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " connects " connected " Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition Concrete meaning.

In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit, Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect Coupling or communication connection can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.