CN206069487U - A kind of new device for processing containing sulfate radicals waste water - Google Patents
A kind of new device for processing containing sulfate radicals waste water Download PDFInfo
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- CN206069487U CN206069487U CN201621072122.2U CN201621072122U CN206069487U CN 206069487 U CN206069487 U CN 206069487U CN 201621072122 U CN201621072122 U CN 201621072122U CN 206069487 U CN206069487 U CN 206069487U
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- waste water
- venturi tube
- sulfate radical
- new device
- brium carbonate
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Abstract
This utility model provides a kind of new device for processing containing sulfate radicals waste water, including feed pump, agitator, dosing pump, Venturi tube, circulating water chennel, the suspended liquid bath of brium carbonate, with the suction nozzle in Venturi tube as dosing mouth, medicament is reacted by strong pull of vacuum effect with sulfate radical in waste water inside Venturi tube.The device makes waste water circulation by the reaction efficiency of Venturi tube, sulfate radical in waste water and brium carbonate up to more than 98% by feed pump, makes the sulfate radical that barium carbonate method is removed in waste water become practical.
Description
Technical field
This utility model is related to the new device that a kind of sedimentation method remove sulfate radical in waste water, and this utility model is used as one
The processing unit of economical and efficient is planted, the process of the containing sulfate radicals waste water such as titanium dioxide, chlor-alkali industry is can be widely used for.
Background technology
At present, the separation of comparative maturity go the technical method of sulfate radical mainly have 6 kinds, i.e. barium chloride method, Calcium Chloride Method,
Freezing method, barium carbonate method, ion exchange and membrane separation process.
Barium chloride method
Barium chloride method is to be reacted to generate precipitation with the sulfate radical in barium chloride and saline, due to compound barium sulfate
Solubility product very little, so using the method removal effect preferably, before 2000, most domestic chlor-alkali enterprises are removed using the method
Sulfate radical.But, using during the method it is noted that prevent excess because the barium chloride of excess can be reacted with the NaOH in electric groove
Generate precipitation, the electric groove barrier film of blocking.Its maximum shortcoming is that use cost is high, by taking 100kt/a ionic exchange membrane caustics as an example, often
The cost that year is processed is up to more than 1,100 ten thousand yuan.The method can barium sulfate byproduct.
Calcium Chloride Method
The method is that reaction generates precipitation, and as the solubility product of calcium sulfate is larger, the dissolubility especially in saline will increase
Three or four times, therefore the method is removed not as barium chloride method method thoroughly, but the saline if salt usage amount is little, Jing after the method is processed
In mass concentration requirement also up to below 7g/L, generally do not reach below 5g/L.The method removes technique and chlorination
Barium method is similar, and Calcium Chloride Method goes sulfate radical reduced investment, and because calcium chloride price is relatively cheap, therefore has certain competitiveness,
Which has the disadvantage that as the solubility product of calcium sulfate is larger generation is slightly soluble precipitation, due to salt effect, the dissolubility in saturated brine
Higher than 2～3 times in aqueous solution.Go the inefficient of sulfate radical, increased the calcium ion in saline again, brine sludge amount increase and
It is difficult to process, the reduction of discharging policy of country is not met, effect is poor compared with barium chloride method.
Barium carbonate method
Barium carbonate method is to realize separating the purpose of sulfate radical with the solubility product moment of barium sulfate using brium carbonate.The patent No.
CN03133842 describes a kind of method that brium carbonate removes sulfate anion in brine system, and the major advantage of the invention is：Due to being
Repeat to react, the response rate of brium carbonate is high；It is low compared with the expense of barium chloride method sulfate radical, safe；Can produce a certain amount of
Sodium carbonate, reduces the consumption of refining agent (sodium carbonate), saves the acquisition expenses of sodium carbonate.It is again more honest and cleaner than barium chloride due to using
The brium carbonate of valency makes the cost of sulfate radical in demineralized water lower removing sulfate radical.Due to price it is relatively low, and barium in the two
Mass fraction is widely different, and the former is 70%, and the latter is by-product soda in 56%, and course of reaction, can reduce crude brine
Refining agent usage amount, therefore the method causes the concern of domestic chlor-alkali industry.But the shortcoming of the method it is also obvious that dissolubility compared with
Little, often there is line clogging phenomenon in Jing in actual use, and the technique is still immature, needs further to solve presence aborning
Problem.
Freezing method, ion exchange etc. all have investment big, the shortcoming of high energy consumption.
Utility model content
The purpose of this utility model is to provide a kind of new device for removing sulfate radical in waste water, and the device make use of
The principle of Venturi tube, the strong pull of vacuum produced using Venturi tube, with Venturi tube inside as main reacting environment, makes carbon
The purpose that sour barium almost can be reacted with sulfate radical completely.
This utility model solves the technical scheme adopted by its technical problem：A kind of new dress for processing sulfate radical waste water
Put, including feed pump, agitator, dosing pump, Venturi tube, circulating water chennel, the suspended liquid bath of brium carbonate, it is characterised in that described to add
Medicine mouth is located in Venturi tube, and the upper end outlet of the dosing pump is connected with the dosing mouth in Venturi tube, lower end and carbonic acid
The suspended liquid bath of barium is connected, and the water inlet of the Venturi tube is connected with circulating water chennel by feed pump, and the stirring rod is placed in carbon
In the suspended liquid bath of sour barium.
Further, the dosing mouth internal diameter in Venturi tube is 5-10mm, can arrange one or two；
Further, the main body of processor is PVC components or steel construction.
The utility model has the advantage of venturi principle is applied in traditional barium carbonate method sulfate radical waste water, pass through
Waste water reacts the purpose for reaching sulfate radical in eliminating water with the circulating contact of medicament.As brium carbonate is also insoluble in water, tradition side
In method, the barium sulfate of generation is not had enough time to participate in the brium carbonate parcel of reaction, is covered, and the brium carbonate of addition is joined completely
With reaction, cause reaction efficiency very low.And this utility model adopts Venturi tube inner vacuum region as reacting environment, which is strong
Immixture can avoid the problem in traditional method, brium carbonate is sufficiently mixed with sulfate radical, and make brium carbonate sulfate radical
Method be able to actual utilization.
Another remarkable advantage of the present utility model is that the blanc fixe purity produced in reaction is higher, through appropriate
Just medicament needed for brium carbonate, i.e. wastewater treatment can be changed into as commodity selling or further oxidized reduction after refinement treatment,
Reduce reagent cost.
Description of the drawings
Fig. 1 is a kind of new device schematic diagram for processing sulfate radical waste water.
Wherein, 1. feed pump, 2. circulating water chennel, 3. water inlet pipe, 4. Venturi tube dosing mouth, 5. chemical feed pipe, 6. dosing meter
Pump is measured, 7. the suspended liquid bath of brium carbonate, 8. agitator.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model, it will be appreciated that specific embodiment described herein is only to explain
This utility model, is not used to limit this utility model.
Incorporated by reference to Fig. 1, the waste water containing sulfate radical enters circulating water chennel 2, and Jing feed pumps 1, pipeline 3 are sprayed into venturi
Pump, the suspended liquid bath 7 of brium carbonate, Jing dosings dosing pump 6, chemical feed pipe 5, by dosing mouth 4 (dosing mouth can set one or two), enter
Enter venturi vacuum region, the strong vacuum immixtures of Jing are fully contacted with waste water, after repeatedly circulating, sulfate radical quilt
Barium sulfate precipitate is precipitated as completely, and during the course of the reaction, agitator 8 is rotated always with 300rad/s speed.
The simulated wastewater 25L that sulphate-containing ion concentration is 12.5g/L is prepared with sodium sulfate, is placed in circulating water chennel, root
According to BaCO3+SO4 2--=BaSO4+CO3 2-, stoichiometrically number 1：1 weighs brium carbonate 641g, and in adding 1L water, stirring is configured to
Brium carbonate suspension, adjusts dosing metering pump speeds, and after being slowly added to finish, feed water pump circulation 10min, and precipitation takes supernatant
Detection SO4 2-Concentration is 120mg/L.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (3)
1. a kind of new device for processing sulfate radical waste water, including feed pump, agitator, dosing pump, Venturi tube, recirculated water
The suspended liquid bath of groove, brium carbonate, it is characterised in that the dosing mouth is located in Venturi tube, upper end outlet and the text of the dosing pump
Dosing mouth in venturi is connected, and lower end is connected with the suspended liquid bath of brium carbonate, and the water inlet of the Venturi tube is by feedwater
Pump is connected with circulating water chennel, and the stirring rod is placed in the suspended liquid bath of brium carbonate.
2. it is according to claim 1 it is a kind of process sulfate radical waste water new device, it is characterised in that in Venturi tube
Dosing mouth internal diameter is 5-10mm, can arrange one or two.
3. it is according to claim 1 it is a kind of process sulfate radical waste water new device, it is characterised in that the main body of processor
For PVC components or steel construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621072122.2U CN206069487U (en) | 2016-09-22 | 2016-09-22 | A kind of new device for processing containing sulfate radicals waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621072122.2U CN206069487U (en) | 2016-09-22 | 2016-09-22 | A kind of new device for processing containing sulfate radicals waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206069487U true CN206069487U (en) | 2017-04-05 |
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ID=58439974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621072122.2U Active CN206069487U (en) | 2016-09-22 | 2016-09-22 | A kind of new device for processing containing sulfate radicals waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206069487U (en) |
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2016
- 2016-09-22 CN CN201621072122.2U patent/CN206069487U/en active Active
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