CN2813580Y - Chlorine dioxide generator - Google Patents
Chlorine dioxide generator Download PDFInfo
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- CN2813580Y CN2813580Y CN 200520074925 CN200520074925U CN2813580Y CN 2813580 Y CN2813580 Y CN 2813580Y CN 200520074925 CN200520074925 CN 200520074925 CN 200520074925 U CN200520074925 U CN 200520074925U CN 2813580 Y CN2813580 Y CN 2813580Y
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- reactor
- chlorine dioxide
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Abstract
The utility model provides a middle and small-sized chlorine dioxide multi-stage generator with simple operation, high conversion rate, high purity, multiple purpose, environment protection and chemical method. The chlorine dioxide generator is formed by a kettle type reactor through an acid-proof guide pipe and a water injection type vacuum machine unit. The kettle type reactor uses a two-stage or multi-stage reactor. The interior of a main reaction kettle is provided with an air distributor, the auxiliary reaction kettle is provided with a balance pipe, and thus the reaction is thorough, and the reacted residual liquid can come up to the standards to be discharged. The generated chlorine dioxide is used for preparing water solution, and thus the stable chlorine dioxide solution is prepared.
Description
Technical field:
The utility model relates to a kind of environmental protection equipment for preparing the environmental friendliness oxidative disinfectant, relates in particular to environment-friendly type chlorine dioxide generator a kind of special construction, raw material high conversion, high product purity.
Background technology:
Dioxide peroxide is a kind of wide spectrum, efficient, nontoxic sterilant, can be widely used in sterilization, sterilization, algae removal, oxide treatment.Because dioxide peroxide has characteristics such as extremely strong oxidisability and easy decomposition, accumulating is difficulty relatively, uses the occasion of dioxide peroxide to bring inconvenience to ask for something; In addition, some need the long-term and continuous industry of using dioxide peroxide, and requiring has a kind of reliable and stable device to guarantee the supply of dioxide peroxide; Disinfecting of industries such as tap water requires to use chlorine dioxide with high purity, to reduce the harm that because of the halohydrocarbon that uses disinfection by chlorine to produce human body is brought at present.
Chlorine dioxide generator is divided into two big classes usually by the dioxide peroxide production method: chemical method and electrolytic process.Chemical method is by raw materials used Textone method and the sodium chlorate method of can being divided into again.
The chlorine dioxide generating device that adopts both at home and abroad mainly contains two kinds at present: high-purity type and compound.High-purity type is to utilize chlorite to be raw material generation dioxide peroxide.Because chloritic price is higher 2～3 times than oxymuriate price, so, this method running cost height.
Compound chlorine dioxide generator is to be raw material generation dioxide peroxide with the oxymuriate, and running cost is lower.The purity that its maximum shortcoming is a dioxide peroxide is lower, and the transformation efficiency of sodium chlorate is low.The reductive agent that prior art adopts usually has chlorion and methyl alcohol.Adopting chlorion is that reductive agent can produce a large amount of chlorine, makes to require the occasion of chlorine dioxide with high purity to be limited to.Adopting methyl alcohol is that reductive agent generation dioxide peroxide often produces formaldehyde, formic acid in product, brings the secondary water pollution problems.
Prior art, as ZL99205151, denomination of invention is the multiple-unit chlorine dioxide generator, and 99213301, name is called a kind of chlorine dioxide generator, all adopts electrolytic process generation dioxide peroxide.This method current consumption is big, and device lifetime is shorter, and maintenance cost is higher, also is mixed with a large amount of chlorine in the product, and purity is lower.Other has technology ZL03268862.8, and name is called chlorine dioxide generator, is for overcoming a kind of chemical method producer that shortcoming that electrolytic process brings provides.Shortcomings such as but this producer is a single-stage reactor, exists reaction time short, reacts insufficient, and feed stock conversion is low.
Summary of the invention:
The purpose of this utility model is exactly a kind of raw material high conversion that provides, high product purity, simple to operate and be applicable to the multistage producer of multiduty environmental-protecting chemical method dioxide peroxide in order to overcome the defective that above-mentioned prior art exists.
The technical solution of the utility model is: a kind of chlorine dioxide generator, form by tank reactor and water-jetting type vacuum unit 7, it is characterized in that tank reactor is connected and composed by main reaction still 1 and secondary reacting kettle 10, and secondary reacting kettle 10 is provided with equilibration tube 9, equilibration tube 9 links to each other with water-jetting type vacuum unit 7 with main reaction still 1, the still top of major and minor reactor is communicated with, and is communicated with at the bottom of the still of major and minor reactor.
Wherein, described tank reactor can be made of 1 main reaction still 1 and 2 or 2 above secondary reacting kettles 10.
Major and minor reactor all is provided with thief hole 11; Photoscope 2 is equipped with at the middle part of main reaction still 1, and the still of main reaction still 1 is top-loaded with air flowmeter 3 and accurate automatic sampler 4.
Be provided with air-distributor in the main reaction still, the outside resistance wire heating that utilizes parcel, the material of reactor is the titanium material; Main reaction still 1 preferably is provided with three place's thief holes 11; Secondary reacting kettle 10 preferably is provided with three place's thief holes 11.
Wherein said water-jetting type vacuum unit 7 is made up of water-jetting type vacuum pump 6 and liquid storage groove 8; 8 absorption liquid can be a water in the liquid storage groove, or alkaline absorption solution.
Material is become owner of reactor 1 by automatic sampler 4 chargings from the still jacking, makes by water-jetting type vacuum unit 7 to keep negative pressure in the still, makes to be reflected under the negative pressure and finishes.The product liquid that generates imports secondary reacting kettle by the bottom conduit from the middle part.By equilibration tube 9, the portion gas product that generates in the main reaction still enters secondary reacting kettle, continues reaction in still.Gaseous product passes through reactor discharge port 5 with the gaseous product that generates from the main reaction still, connects water-jetting type vacuum unit, is absorbed in liquid storage groove 8.
What above-mentioned producer adopted is two-stage or staged reactor, and secondary reactor (secondary reacting kettle) is provided with equilibration tube 9, one, and the raffinate in the system is discharged automatically, the 2nd, cooperate two-stage reactor, make the reaction conditions in the major and minor reactor keep constant, the change stream of pulses is Continuous Flow, and reaction is carried out fully, reacts more thorough, improved the yield of conversion of raw material and product, reduced content of effective in the raffinate, but the reaction residue qualified discharge is favourable to environmental protection.
Above-mentioned dioxide peroxide generation equipment can be prepared aqueous solution of chlorine dioxide, for using in the scene; Also can be prepared into the stabilizing solution of dioxide peroxide, storage is deposited.
This method is reduced sodium chlorate with hydrogen peroxide and is prepared dioxide peroxide under acidic conditions.This technology is a kind of method of newer production dioxide peroxide, and the purity of chlorine dioxide height of preparation, transformation efficiency height more and more cause people's attention.For in, produce dioxide peroxide in the small-scale device, use oxymuriate can reduce raw material and running cost significantly as raw material.By the control reaction conditions, hydrogen peroxide method can make and contain chlorine in the product dioxide peroxide hardly, can not damage the fiber of fabric in bleaching, is used for drinking water treatment and can produce carcinogenic substances such as trichloromethane.
Beneficial effect
What 1, the utility model adopted is two-stage or staged reactor, and secondary reactor is provided with equilibration tube, make the reaction conditions in the major and minor reactor keep constant, the change stream of pulses is Continuous Flow, make reaction more thorough, improved the yield of conversion of raw material and product, reduced content of effective in the raffinate, but the reaction residue qualified discharge is favourable to environmental protection.
2, the sodium chlorate transformation efficiency can reach 85～100%, and the dioxide peroxide yield is 85～98%, and purity can reach 95～100%.(prior art, sodium chlorate transformation efficiency 85～95%, dioxide peroxide yield 90%, purity 90～95% is laboratory test data)
3, during the utility model is adapted at, produce dioxide peroxide in the small-scale device, can implement continous way, can control automatically.
4, in the dioxide peroxide feeding water that device generates, can be directly used in on-the-spot water treatment; Dioxide peroxide is absorbed by basic solution, can be made into the Chlorine Dioxide Steady Liquor finished product, is convenient to storing and sells.
5, main side effect still body is provided with thief hole, can carry out at-once monitor, measures each reactant concn, investigates the mechanism of reaction.Packaged unit can be used for scientific research.
Description of drawings
Fig. 1 is the chlorine dioxide generator structure.
Fig. 2 is the sectional view of main reaction still.
Fig. 3 is Fig. 2 A-A sectional view.
1. main reaction stills among the figure, 2. photoscope, 3. air flowmeter, 4. automatic sampler, 5. reactor discharge port, 6. vacuum pump, 7. water-jetting type vacuum unit, 8. liquid storage groove, 9 equilibration tubes, 10. secondary reacting kettle, 11. thief holes, 12. air-distributors.
Wherein 2. photoscopes can the observing response situation, with the naked eye observes the color that gas takes place in the reactor, tentatively judges whether reaction is normally carried out; 4. automatic sampler, feed(raw material)inlet can adopt and mix sodium chlorate and hydrogen peroxide.
Embodiment:
Embodiment 1:
The preparation method of high density chlorine dioxide with high purity: with sodium chlorate solution is oxygenant, is reductive agent with the superoxol of 27% concentration, reacts in 20% sulfuric acid medium.The ratio NaClO that raw material enters
3: H
2O
2: H
2SO
4=2: 1: 1, controlling reaction time was more than 1 hour, and temperature of reaction is 50 ℃, negative pressure 0.01Mpa.
Raw material sodium chlorate, hydrogen peroxide and sulfuric acid enter reactor 1 in proportion from the top automatic sampler 4 of main reaction still 1, by the air thorough mixing afterreaction that comes out through air flowmeter 3, air-distributor 12, generate high density chlorine dioxide with high purity solution.Saturated ClO 2 solution becomes small bubbles to overflow from reaction solution through pneumatic blending.In the main reaction still 1 not the liquid of complete reaction enter in the secondary reacting kettle 10 by conduit, the portion gas product that reaction produces enters in the secondary reacting kettle 10 by equilibration tube 9, continues reaction.The chlorine dioxide that produces in the major and minor reactor enters water sprayer vacuum unit 7 through reaction discharge port 5, is inhaled into storage tank 8.When the absorption liquid in the storage tank is water, form aqueous solution of chlorine dioxide, can be used as product and directly come into operation.When the absorption liquid in the storage tank is alkali lye, form Chlorine Dioxide Steady Liquor.
Embodiment 2:
The preparation method of high density chlorine dioxide with high purity: with sodium chlorate solution is oxygenant, is reductive agent with the superoxol of 30% concentration, reacts in 50% sulfuric acid medium.The ratio NaClO that raw material enters
3: H
2O
2: H
2SO
4=6: 4: 3, controlling reaction time was more than 1 hour, and temperature of reaction is 70 ℃, negative pressure 0.01Mpa.
Raw material sodium chlorate, hydrogen peroxide and sulfuric acid enter reactor 1 in proportion from the top automatic sampler 4 of main reaction still 1, by the air thorough mixing afterreaction that comes out through air flowmeter 3 air-distributors 12, generate high density chlorine dioxide with high purity solution.Saturated ClO 2 solution becomes small bubbles to overflow from reaction solution through pneumatic blending.In the main reaction still 1 not the liquid of complete reaction enter in the secondary reacting kettle 10 by conduit, the portion gas product that reaction produces enters secondary reacting kettle 10 by equilibration tube 9, continues reaction.In the main side effect still not the liquid of complete reaction enter the residue reactor by conduit, the part chlorine dioxide also enters in the remaining reactor, continues reaction.Dioxide peroxide that goes out through the gas stirring of air and equilibration tube 9 and the chlorine dioxide in the main reaction still enter water sprayer vacuum unit 7 through reaction discharge port 5, are inhaled into storage tank 8.When the absorption liquid in the storage tank is water, form aqueous solution of chlorine dioxide, can be used as product and directly come into operation.When the absorption liquid in the storage tank is alkali lye, form Chlorine Dioxide Steady Liquor.
Claims (8)
1, a kind of chlorine dioxide generator, form by tank reactor and water-jetting type vacuum unit (7), it is characterized in that tank reactor is connected and composed by main reaction still (1) and secondary reacting kettle (10), and secondary reacting kettle (10) is provided with equilibration tube (9), equilibration tube (9) links to each other with water-jetting type vacuum unit (7) with main reaction still (1), the still top of major and minor reactor is communicated with, and is communicated with at the bottom of the still of major and minor reactor.
2, producer according to claim 1 is characterized in that tank reactor can be by 1 main reaction still (1) and 2 or 2 above secondary reacting kettles (10) formation.
3, producer according to claim 1 is characterized in that major and minor reactor all is provided with thief hole (11); Photoscope (2) is equipped with at the middle part of main reaction still (1), and the still of main reaction still (1) is top-loaded with air flowmeter (3) and accurate automatic sampler (4).
4, producer according to claim 1 is characterized in that being provided with air-distributor in the main reaction still, the outside resistance wire heating that utilizes parcel, and the material of reactor is the titanium material.
5, producer according to claim 1 is characterized in that main reaction still (1) is provided with three place's thief holes (11).
6, producer according to claim 1 is characterized in that secondary reacting kettle (10) is provided with three place's thief holes (11).
7, producer according to claim 1 is characterized in that water-jetting type vacuum unit (7) is made up of water-jetting type vacuum pump (6) and liquid storage groove (8).
8, producer according to claim 7 is characterized in that the absorption liquid in the liquid storage groove (8) can be a water, or alkaline absorption solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074925 CN2813580Y (en) | 2005-08-26 | 2005-08-26 | Chlorine dioxide generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074925 CN2813580Y (en) | 2005-08-26 | 2005-08-26 | Chlorine dioxide generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2813580Y true CN2813580Y (en) | 2006-09-06 |
Family
ID=36948664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520074925 Expired - Lifetime CN2813580Y (en) | 2005-08-26 | 2005-08-26 | Chlorine dioxide generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2813580Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387511C (en) * | 2005-08-26 | 2008-05-14 | 南京工业大学 | Chlorine dioxide generator |
-
2005
- 2005-08-26 CN CN 200520074925 patent/CN2813580Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387511C (en) * | 2005-08-26 | 2008-05-14 | 南京工业大学 | Chlorine dioxide generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080514 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |