CN203474468U - Sodium fluosilicate drying equipment - Google Patents
Sodium fluosilicate drying equipment Download PDFInfo
- Publication number
- CN203474468U CN203474468U CN201320536432.5U CN201320536432U CN203474468U CN 203474468 U CN203474468 U CN 203474468U CN 201320536432 U CN201320536432 U CN 201320536432U CN 203474468 U CN203474468 U CN 203474468U
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- CN
- China
- Prior art keywords
- combustion chamber
- drying
- air
- sodium silicofluoride
- combustion
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Abstract
The utility model relates to chemical production equipment, and particularly relates to sodium fluosilicate drying equipment which comprises a combustion heating mechanism, a drying mechanism and a material collecting mechanism, the combustion heating mechanism comprises a purifier and a combustion chamber, the purifier is provided with a process water pipeline, a gas inlet pipeline, a gas outlet pipeline and a pollution discharge valve; the purifier is additionally arranged for improving the combustion heating mechanism, process water is used for purification processing of synthetic ammonia purge gas to remove ammonia and retain CH4, H2, CO and other combustible gases, the combustible gases and compressed air are introduced into the combustion chamber for mixing and spray combustion from a jet nozzle, air in the combustion chamber is heated, the temperature rise rate is fast, hot air can reach more than 450 DEG C, the combustion chamber is provided with an air dilution hole, the air dilution hole enables the air to convect to regulate the air concentration in the combustion chamber, the hot air is introduced into a drying tube for drying a wet sodium fluosilicate material to promote the rapid evaporation of moisture in the wet material, the moisture content of the dried material is equal to or less than 0.3%, and the drying effect is greatly increased.
Description
Technical field
The utility model relates to chemical production equipment, and particularly the dry system of a kind of Sodium Silicofluoride, is applicable to byproduct Sodium Silicofluoride process for processing in phosphoric acid, general calcium production process.
Background technology
In recent years, China's fluorine chemical industry development is very rapid, has become the production and consumption big country of global fluorine chemical product.At present, domestic and international most fluorine product is all with fluorite (CaF
2) be raw material production, still, fluorite is as grand strategy resource, and its protection is all paid much attention in countries in the world, and a large amount of imports of not stinting are laid in.World's phosphor resource reserves are larger, Rock Phosphate (72Min BPL) [Ca
5f(PO
4)
3] in the fluorine resource of association large more than the reserves of fluorite, how to make full use of phosphate fertilizer by-production fluorine resource, become the problem of World Focusing.
In Rock Phosphate (72Min BPL), the fluorine of association reclaims, and while producing general calcium or phosphoric acid when phosphorus ore and sulfuric acid reaction, carries out, and its objective is that the form with silicofluoric acid is fixed up fluorine, and chemical equation is as follows:
Ca
5F﹙PO
4﹚
3 +5H
2SO
4 = 5CaSO
4·2H
2O+3H
3PO
4+HF↑
3SiF
4 + 2H
2O = 2H
2SiF
6 + SiO
2
The silicate fluoride solution generating fully reacts with sodium-chlor (sodium sulfate) solution by clarification, through crystallization, washing, centrifuge dehydration, dry, generates the Sodium Silicofluoride product that meets HG/T3252-2000 quality standard.
At present, the dry thermal source that domestic Sodium Silicofluoride is produced mainly: coal and electricity, low by coal heating efficiency, occupation area of equipment is large, and coal smoke pollutes atmosphere; Electricity consumption heating energy consumption is high, thermoelectric converter loss is high.And product can only reach salable product (moisture content≤0.6%), its output is on the low side.Be unfavorable for large-scale industrialization production.
Utility model content
The purpose of this utility model is to provide a kind of energy-conserving and environment-protective, convenient operation, the dry system of Sodium Silicofluoride that drying effect is good.
The utility model solves the technical scheme that its technical problem adopts:
The dry system ，You combustion heating mechanism of a kind of Sodium Silicofluoride, drier and material collection mechanism form, and described combustion heating mechanism comprises cleaner and combustion chamber, and described cleaner is provided with process water pipeline, intake ducting, outlet pipe and wash water valve; Described outlet pipe is communicated with cleaner and combustion chamber; Described combustion chamber is connected with drying tube one end of drier, and the drying tube the other end is connected with material collection mechanism; Drying tube is provided with Material pipeline.
Described combustion chamber is also provided with compressed air line, and compressed air line is connected with burning mixing section with outlet pipe, and burning mixing section is provided with nozzle.
On described combustion chamber, offer Dilution air hole.
Described material collection mechanism comprises dust-precipitator and finished bin, and described dust-precipitator is divided into one-level cyclone, secondary cyclone and bagroom.
Described bagroom is connected with compressed air line with blower fan respectively.
Described cleaner is provided with observation tube.
In described Material pipeline, be provided with feeding screw.
The beneficial effects of the utility model are: 1, improve combustion heating mechanism and set up cleaner, operation water is speeded to exit to synthetic ammonia and carried out purifying treatment, removes ammonia and impurity and retains CH
4, H
2, the inflammable gas such as CO, will inflammable gas and pressurized air import mixed merga pass nozzle ejection burning in burning mixing section, heating flame room air, heat-up rate is fast, warm air can reach more than 450 ℃.On combustion chamber, offer Dilution air hole, Dilution air hole can make convection of air regulate air concentration in combustion chamber.It is dry to Sodium Silicofluoride wet feed that warm air imports drying tube, impels the moisture content in wet feed to evaporate rapidly, and dried material water content can reach≤and 0.3%, drying effect significantly promotes.2, adopt two stage cyclone dust-precipitator can collect most of material dust, bagroom can thoroughly be collected leftover materials dust, and recovery utilization rate significantly promotes.3, cleaner is provided with wash water valve, by wash water valve, regularly process water is changed, and can improve decontamination effect improving, and then guarantees stably manufactured.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
The dry system of a kind of Sodium Silicofluoride as shown in the figure, by combustion heating mechanism, drier and material collection mechanism, formed, described combustion heating mechanism comprises cleaner 1 and combustion chamber 2, and described cleaner 1 is provided with process water pipeline 3, intake ducting 4, outlet pipe 5 and wash water valve 6; Described outlet pipe 5 is communicated with cleaner 1 and combustion chamber 2; Described combustion chamber 2 is connected with drying tube 11 one end of drier, and drying tube 11 the other ends are connected with material collection mechanism; Drying tube 11 is provided with Material pipeline 12, is provided with feeding screw 13 in Material pipeline 12.Described combustion chamber 2 is also provided with compressed air line 8, and compressed air line 8 is connected with burning mixing section 10 with outlet pipe 5, and burning mixing section 10 is provided with nozzle 9.On described combustion chamber 2, offer Dilution air hole 7.Described material collection mechanism comprises dust-precipitator and finished bin 17, and described dust-precipitator is divided into one-level cyclone 14, secondary cyclone 15 and bagroom 16.Bagroom 16 is connected with compressed air line 8 with blower fan 18 respectively.Described cleaner 1 is provided with observation tube 19.
During use, first process water is put into cleaner 1 by process water pipeline 3, and observe liquid level by observation tube 19.Speeding of synthesizing section being sent here along intake ducting 4 exitted under introducing technology water liquid level and purified, process water retains the inflammable gass such as CH4, H2, CO except after deammoniation, by outlet pipe 5, send into combustion chamber 2, regulate gas pressure intensity and then the adjustments of gas ratio of mixture of compressed air line 8, mixed gas is in fully mixed merga pass nozzle 9 burnings of burning mixing section 10, Dilution air hole 7 can make convection of air regulate the interior air concentration in combustion chamber 2, and the air in its combustion chamber 2 can be heated to more than 450 ℃.Sodium Silicofluoride wet stock is sent in Material pipeline 12, by feeding screw 13, imports in drying tube 11, and warm air fully contacts with wet stock, impels moisture content to evaporate rapidly, and dry rear material moisture content keeps≤0.3%.Warm air and dried powder form material and flow to into material collection mechanism, one-level cyclone 14,15 pairs of streams of secondary cyclone are carried out dust collection, the dust of collecting falls in finished bin 17, a small amount of dust can enter bagroom 16, and blower fan 18 and compressed air line 8 make the interior generation negative pressure of bagroom 16 can play better dust-filtering effect.Finally the material in finished bin 17 has been packed to whole drying operation.By wash water valve 6, regularly process water is changed, to reach best purification effect.
As shown in the table, the utility model and legacy equipment result of use are compared and are not difficult to find out, the temperature of combustion chamber of the present utility model and drying tube obviously promotes, and drying efficiency significantly improves, and product water content significantly reduces, and has improved product production and quality.A large amount of coal electric resources have been saved, environmental protection more economically simultaneously.
Claims (7)
1. a Sodium Silicofluoride drying plant, by combustion heating mechanism, drier and material collection mechanism, formed, it is characterized in that described combustion heating mechanism comprises cleaner (1) and combustion chamber (2), described cleaner (1) is provided with process water pipeline (3), intake ducting (4), outlet pipe (5) and wash water valve (6); Described outlet pipe (5) is communicated with cleaner (1) and combustion chamber (2); Described combustion chamber (2) is connected with drying tube (11) one end of drier, and drying tube (11) the other end is connected with material collection mechanism; Drying tube (11) is provided with Material pipeline (12).
2. a kind of Sodium Silicofluoride drying plant according to claim 1, it is characterized in that described combustion chamber (2) is also provided with compressed air line (8), compressed air line (8) is connected with burning mixing section (10) with outlet pipe (5), and burning mixing section (10) is provided with nozzle (9).
3. a kind of Sodium Silicofluoride drying plant according to claim 2, is characterized in that offering on described combustion chamber (2) Dilution air hole (7).
4. according to a kind of Sodium Silicofluoride drying plant described in claim 1 or 3, it is characterized in that described material collection mechanism comprises dust-precipitator and finished bin (17), described dust-precipitator is divided into one-level cyclone (14), secondary cyclone (15) and bagroom (16).
5. a kind of Sodium Silicofluoride drying plant according to claim 4, is characterized in that described bagroom (16) is connected with compressed air line (8) with blower fan (18) respectively.
6. a kind of Sodium Silicofluoride drying plant according to claim 5, is characterized in that described cleaner (1) is provided with observation tube (19).
7. a kind of Sodium Silicofluoride drying plant according to claim 6, is characterized in that being provided with in described Material pipeline (12) feeding screw (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536432.5U CN203474468U (en) | 2013-08-30 | 2013-08-30 | Sodium fluosilicate drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536432.5U CN203474468U (en) | 2013-08-30 | 2013-08-30 | Sodium fluosilicate drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203474468U true CN203474468U (en) | 2014-03-12 |
Family
ID=50222841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320536432.5U Expired - Fee Related CN203474468U (en) | 2013-08-30 | 2013-08-30 | Sodium fluosilicate drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203474468U (en) |
-
2013
- 2013-08-30 CN CN201320536432.5U patent/CN203474468U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |