CN209128048U - The drying and dehydrating device of chlorine industry production saltcake - Google Patents
The drying and dehydrating device of chlorine industry production saltcake Download PDFInfo
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- CN209128048U CN209128048U CN201821650684.XU CN201821650684U CN209128048U CN 209128048 U CN209128048 U CN 209128048U CN 201821650684 U CN201821650684 U CN 201821650684U CN 209128048 U CN209128048 U CN 209128048U
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- air hose
- pulse tube
- drying
- communicated
- liquid alkaline
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model relates to industrial saltcake technical field of drying, it is a kind of drying and dehydrating device of chlorine industry production saltcake, the drying and dehydrating device of chlorine industry production saltcake, including tail gas air blower, screw feeder, rotary flow desiccator, cyclone separator, bag filter, caustic wash tower, by heat source, water-containing materials are passed sequentially through first segment pulse tube by thermal current in air hose, after second section pulse tube and third section pulse tube, after separating using cyclone separator and obtain anhydrous sodium sulphate and mixed airflow, a large amount of carbon dioxide recovery will be contained in mixed airflow, with alkaline reaction, obtain raw material needed for downstream process produces.The utility model simple process, device is easy to operate, both the waste heat in exhaust gas had been taken full advantage of, the carbon dioxide contained in tail gas is made full use of, reduce environmental protection pressure in chlor-alkali enterprises, it makes full use of waste as part producing raw material again, reduces enterprise's production cost, have the characteristics that safe, laborsaving, easy, efficient.
Description
Technical field
The utility model relates to industrial saltcake technical field of drying, are a kind of drying and dehydrating dresses of chlorine industry production saltcake
It sets.
Background technique
Saltcake is the Industrial Solid Waste of generation during chlor-alkali industry salt refining, is the custom of the sodium sulphate containing the crystallization water
Claim, i.e. sal glauberi and the mixture of a small amount of other substances formation；The processing of saltcake, not only be easy to cause in industrial production
Environmental pollution and be resource waste.
On the one hand in order to effectively administer saltcake and using its useful component create economic benefit, another aspect combustion of natural gas
Tail gas contains heat more than needed, can satisfy the heat source requirement that the dry production of saltcake needs.Domestic outer portion chlor-alkali enterprises are administered
Saltcake utilizes multiple-effect evaporation or steam drying, but both processes energy consumption at present is higher, causes production cost big.
It produces anhydrous sodium sulphate simultaneously to be limited by product quality and market supply and demand, benefit is lower；It is that prime cost disappears that saltcake drying, which needs heat source,
Consumption problem.Contain a large amount of carbon dioxide in natural tail-gas, directly excludes that climate warming phenomenon can be aggravated, if can be used as
Energy reuse is more advantageous to environmental protection.
Summary of the invention
The utility model provides a kind of drying and dehydrating device of chlorine industry production saltcake, overcomes the above-mentioned prior art
Deficiency, can effectively solve in existing saltcake drying device that there are the dry high production cost of anhydrous sodium sulphate, energy waste and environment
The problem of pollution.
The technical solution of the utility model is realized by following measures: a kind of drying of chlorine industry production saltcake
Dehydration device, including tail gas air blower, screw feeder, rotary flow desiccator, cyclone separator, bag filter, caustic wash tower, tail
Enraged fan inlet fixation is communicated with solid caustic soda exhaust pipe, and fixation is connected between tail gas blower export and rotary flow desiccator import
There is the first air hose, screw feeder is fixedly installed on the first air hose, between rotary flow desiccator outlet and cyclone inlet
Fixed to be communicated with the second air hose, fixation is communicated with third wind between the outlet of cyclone separator top stream and bag filter import
Pipe, fixation is communicated with the 4th air hose between bag filter outlet and caustic wash tower lower inlet, with caustic wash tower lower part outlet and alkali
It washes fixation between top of tower import and is communicated with liquid alkaline pipeloop.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
First segment pulse tube, the second section pulse tube and third section pulse tube, and are disposed on above-mentioned first air hose
The ratio between one air hose and the caliber of first segment pulse tube, the first air hose and the second section pulse tube, the first air hose and third section pulse tube
It is 1:1.4 to 1.6.
First segment pulse tube, the second section pulse tube and third section pulse tube are sequentially arranged at intervals on above-mentioned first air hose,
And the caliber of first air hose and first segment pulse tube, the first air hose and the second section pulse tube, the first air hose and third section pulse tube
The ratio between be 1:1.4 to 1.6.
Liquid alkaline circulating pump is fixedly installed on above-mentioned liquid alkaline pipeloop, and in liquid alkaline circulating pump and caustic wash tower top inlet
Between liquid alkaline pipeloop on fixation be communicated with mixed solution export pipeline.
The utility model simple process, device is easy to operate, has both taken full advantage of the waste heat in exhaust gas, will contain in tail gas
Carbon dioxide make full use of, reduce environmental protection pressure in chlor-alkali enterprises, and make full use of waste as part producing raw material,
Enterprise's production cost is reduced, is had the characteristics that safe, laborsaving, easy, efficient.
Detailed description of the invention
Attached drawing 1 is the process flow diagram of the utility model.
Coding in attached drawing is respectively as follows: 1 for tail gas air blower, and 2 be screw feeder, and 3 be rotary flow desiccator, and 4 be whirlwind
Separator, 5 be bag filter, and 6 be air-introduced machine, and 7 be caustic wash tower, and 8 be liquid alkaline circulating pump, and 9 be the first air hose, and 10 be the second wind
Pipe, 11 be third air hose, and 12 be the 4th air hose, and 13 be liquid alkaline pipeloop, and 14 be mixed solution export pipeline, and 15 be solid caustic soda tail
Gas pipeline, 16 be first segment pulse tube, and 17 be the second section pulse tube, and 18 be third section pulse tube.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
The utility model is further described below with reference to examples and drawings:
As shown in Fig. 1, the device of the drying and dehydrating method of chlorine industry production saltcake, including tail gas air blower 1, spiral shell
Revolve feeder 2, rotary flow desiccator 3, cyclone separator 4, bag filter 5, caustic wash tower 7, the fixed connection of 1 import of tail gas air blower
There is solid caustic soda exhaust pipe 15, is fixed between the outlet of tail gas air blower 1 and 3 import of rotary flow desiccator and be communicated with the first air hose 9, first
It is fixedly installed with screw feeder 2 on air hose 9, it is fixed between the outlet of rotary flow desiccator 3 and 4 import of cyclone separator to be communicated with the
Two air hoses 10, fixation is communicated with third air hose 11, cloth between the outlet of 4 top stream of cyclone separator and 5 import of bag filter
Fixation is communicated with the 4th air hose 12,7 lower part outlet of caustic wash tower and alkali cleaning between the outlet of bag dust collector 5 and 7 lower inlet of caustic wash tower
Fixation is communicated with liquid alkaline pipeloop 13 between 7 top inlet of tower.
The saltcake of the utility model by-product using in chlor-alkali production is as raw material, the liquid alkaline conduct of caustic soda process production in enterprise
The absorbing liquid of carbon dioxide, heat source of the combustion of natural gas emptying tail gas of solid potash device as the dry thermal current of saltcake, by dry
Dry and absorption, respectively obtains anhydrous sodium sulphate, sodium bicarbonate and sodium carbonate mixed solution.The use of the utility model, both reduced
The generation of waste, absorbs carbon dioxide in chlor-alkali enterprises production, while realizing by-product waste in chlor-alkali enterprises production again
Resource utilization reduces production cost, improves the performance of enterprises, has the characteristics that safe, laborsaving, easy, efficient.
Above-mentioned apparatus can be made further optimization and/or improvements according to actual needs:
As shown in Fig. 1, first segment pulse tube 16,17 and of the second section pulse tube are sequentially arranged at intervals on the first air hose 9
Third section pulse tube 18, and the first air hose 9 and first segment pulse tube 16, the first air hose 9 and the second section pulse tube 17, the first air hose
9 and the ratio between the caliber of third section pulse tube 18 are 1:1.4 to 1.6.
As needed, water-containing materials and the flow-rate ratio 1:500 of thermal current or so in pulse tube, first segment pulse tube 16,
The widened ratio of caliber is arranged in second section pulse tube 17, third section pulse tube 18 and air hose, so that pulse tube sectional area ratio increases,
Material flow in pipe is advantageously reduced, the time that material is dried by thermal current, first segment pulse of the water-containing materials in air hose are increased
Pipe, the second section pulse tube and third section pulse velocity in pipes reduce respectively, and drying time lengthens respectively, to further speed up dry
Dry effect.
As shown in Fig. 1, air-introduced machine 6 is fixedly installed on third air hose 11.
As shown in Fig. 1, liquid alkaline circulating pump 8 is fixedly installed on liquid alkaline pipeloop 13, and in liquid alkaline circulating pump 8 and alkali
Fixation is communicated with mixed solution export pipeline 14 on the liquid alkaline pipeloop 13 washed between 7 top inlet of tower.
As needed, caustic soda process increases caustic wash tower 7, and uses absorption of the sodium hydroxide of production as carbon dioxide
Liquid both reduces environmental protection pressure, also achieves resource rational utilization.
The above technical characteristic constitutes the embodiments of the present invention, can with stronger adaptability and implementation result
Increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
The use process of the utility model: the first step, by anhydrous sodium sulphate and saltcake according to the ratio of 3:1 in screw feeder 2
Water-containing materials are inside obtained after evenly mixing, the thermal current of tail gas air blower 1 are entered by solid caustic soda exhaust pipe 15, by screw feeding
The water-containing materials that device 2 exports, which are stablized, is sent into the first air hose 9；Second step, water-containing materials are fast under thermal current effect in the first air hose 9
Speed dispersion, water-containing materials and thermal current in air hose successively the first segment pulse tube 16 after the expansion of 9 caliber of the first air hose, the
Two section pulse tubes 17 and third section pulse tube 18, first segment pulse tube 16, second section pulse tube 17 and of the water-containing materials in air hose
Flow velocity reduces respectively in third section pulse tube 18, and drying time lengthens respectively, obtains dried material after third section pulse tube 18 out；
Third step, dried material and hot gas flow through the first air hose 9 after third section pulse tube 18 and enter in rotary flow desiccator 3, in eddy flow
After being crushed dried material in drier 3, obtained granule materials and hot gas flow through the second air hose 10 and enter cyclonic separation jointly
Device 4；4th step, granule materials and thermal current are in cyclone separator 4, after cyclonic separation, obtain anhydrous sodium sulphate and gaseous mixture
Stream；5th step, anhydrous sodium sulphate are discharged through 4 bottom of cyclone separator, and mixed airflow enters bag filter 5 through third air hose 11, remove
After removing a small amount of dust carried secretly in mixed airflow, by the 4th air hose 12, caustic wash tower 7, alkali cleaning are entered under the action of air-introduced machine 6
After tower 7 absorbs the carbon dioxide in mixed airflow, the mixed solution of sodium bicarbonate and sodium carbonate, a part of mixed solution warp are obtained
NaOH solution circulating pump returns to caustic wash tower 7 and recycles, remaining mixed solution is sent through mixed solution export pipeline 14 to downstream work
Raw material of the sequence as refining agent.
Claims (5)
1. a kind of drying and dehydrating device of chlorine industry production saltcake, it is characterised in that including tail gas air blower, screw feeder,
Rotary flow desiccator, cyclone separator, bag filter, caustic wash tower, the fixation of tail gas blower inlet are communicated with solid caustic soda exhaust pipe,
Fixation is communicated with the first air hose between tail gas blower export and rotary flow desiccator import, is fixedly installed with spiral on the first air hose
Feeder, it is fixed between rotary flow desiccator outlet and cyclone inlet to be communicated with the second air hose, gas at the top of cyclone separator
It is fixed between outflux and bag filter import to be communicated with third air hose, bag filter outlet and caustic wash tower lower inlet it
Between fixation be communicated with the 4th air hose, between caustic wash tower lower part outlet and caustic wash tower top inlet fixation be communicated with liquid alkaline circulation pipe
Line.
2. the drying and dehydrating device of chlorine industry production saltcake according to claim 1, it is characterised in that on the first air hose
It is sequentially arranged at intervals with first segment pulse tube, the second section pulse tube and third section pulse tube, and the first air hose and first segment pulse
The ratio between pipe, the first air hose and the second section pulse tube, the first air hose and the caliber of third section pulse tube are 1:1.4 to 1.6.
3. the drying and dehydrating device of chlorine industry production saltcake according to claim 1 or 2, it is characterised in that third air hose
On be fixedly installed with air-introduced machine.
4. the drying and dehydrating device of chlorine industry production saltcake according to claim 1 or 2, it is characterised in that liquid alkaline circulation
Liquid alkaline circulating pump is fixedly installed on pipeline, and on the liquid alkaline pipeloop between liquid alkaline circulating pump and caustic wash tower top inlet
Fixation is communicated with mixed solution export pipeline.
5. the drying and dehydrating device of chlorine industry production saltcake according to claim 3, it is characterised in that liquid alkaline circulation pipe
Liquid alkaline circulating pump is fixedly installed on line, and solid on the liquid alkaline pipeloop between liquid alkaline circulating pump and caustic wash tower top inlet
Surely it is communicated with mixed solution export pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821650684.XU CN209128048U (en) | 2018-10-11 | 2018-10-11 | The drying and dehydrating device of chlorine industry production saltcake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821650684.XU CN209128048U (en) | 2018-10-11 | 2018-10-11 | The drying and dehydrating device of chlorine industry production saltcake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209128048U true CN209128048U (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821650684.XU Active CN209128048U (en) | 2018-10-11 | 2018-10-11 | The drying and dehydrating device of chlorine industry production saltcake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115744935A (en) * | 2022-09-30 | 2023-03-07 | 常州江南冶金科技有限公司 | Process for improving purity of sodium sulfate |
-
2018
- 2018-10-11 CN CN201821650684.XU patent/CN209128048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115744935A (en) * | 2022-09-30 | 2023-03-07 | 常州江南冶金科技有限公司 | Process for improving purity of sodium sulfate |
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