CN102226628B - Method for drying strontium chloride hexahydrate - Google Patents
Method for drying strontium chloride hexahydrate Download PDFInfo
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- CN102226628B CN102226628B CN 201110149167 CN201110149167A CN102226628B CN 102226628 B CN102226628 B CN 102226628B CN 201110149167 CN201110149167 CN 201110149167 CN 201110149167 A CN201110149167 A CN 201110149167A CN 102226628 B CN102226628 B CN 102226628B
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Abstract
The invention provides a method and device for drying strontium chloride hexahydrate. Strontium chloride hexahydrate sequentially passes through a plurality of fluidizing cavities of a fluidizing bed, and hot air at the temperature of 50-100 DEG C enters into the fluidizing bed from a last fluidizing cavity. The hot air reversely and sequentially enters into each fluidizing cavity to carry out counter-current drying on materials in the fluidizing cavity. By adopting the method and device provided by the invention, the drying process is easy to control. The air used for drying the materials is contacted with the materials for multiple times, and the utilization rate of heat energy is high. The air used for drying is fully contacted with the materials, thus a product is uniformly dried, and the phenomenon that crystal water is removed as partial strontium chloride hexahydrate is excessively dried can be prevented.
Description
Technical field
The present invention relates to the multilevel drying method of the production of Strontium dichloride hexahydrate, particularly a kind of Strontium dichloride hexahydrate and be used for the multi-staged air circulating fluidised bed apparatus of dry Strontium dichloride hexahydrate.
Background technology
At present, adopt vibrated fluidized bed that moisture Strontium dichloride hexahydrate is carried out drying usually.Since will deviate from partially crystallizable water at 60 ℃ of six water strontium chloride, therefore, the difficult control of its drying.The drying of existing Strontium dichloride hexahydrate is to adopt the air of a large amount of lower temperatures once to contact with material in fluidized bed, because dry air only once contacts with material, the consumption of air is very big, the energy consumption height.Simultaneously, when drying air temperature was low, product can occur dry not enough; When drying air temperature was higher, over-drying, the efflorescence of product caused the loss of product yield, and lumpd easily in follow-up storage and transport process.
The patent No. is that the utility model of zl201020533439.8 discloses a kind of vibrated fluidized bed.When adopting this equipment that material is carried out drying, the air that is used for dried material only once contacts with regard to device for transferring with material, and the heat energy utilization rate is low, and energy loss is big.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, provide a kind of multistage, can prevent the drying means that Strontium dichloride hexahydrate is over-drying.Another object of the present invention provides the dry fluid bed of the sufficient multi-stage countercurrent of a kind of energy utilization.
For realizing that the technical scheme that the object of the invention adopts is such, namely the drying means of 1. 1 kinds of Strontium dichloride hexahydrates is characterized in that, comprises following method and step:
1). reinforced: as the Strontium dichloride hexahydrate after the centrifugation to be joined the charge door of multistage fluidized bed by vibra feeder, make on its gas distribution grid that is evenly distributed in fluid bed;
2). multilevel drying: fluid bed is separated into the fluidizing chamber of some grades of connections, and Strontium dichloride hexahydrate passes through the fluidizing chambers at different levels of fluid bed successively at the vibration effect lower edge of fluid bed gas distribution grid; Simultaneously, temperature is that 50-100 ℃ hot-air enters from the bottom of final stage fluidizing chamber, the gas distribution grid that hot-air passes in the middle of the fluid bed carries out fluidized drying to Strontium dichloride hexahydrate, dried air at the corresponding levels top from fluidizing chamber under the guiding of circulation axis flow fan enters upper level fluidizing chamber bottom by pipeline, like this reverse each grade fluidizing chamber that enters successively carries out counter-current drying and discharges after dedusting at the first order fluidizing chamber top of fluid bed material;
3). discharging: Strontium dichloride hexahydrate is after drying discharged from the discharging opening of multistage fluidized bed afterbody, packing warehouse-in after checking.
Comprise that one is divided into up and down two-part fluid bed body by gas distribution grid, it is characterized in that: the upper spacer and the lower clapboard that lay respectively at the correspondence of described gas distribution grid upper and lower are separated into some grades of fluidizing chambers with fluid bed, gapped between described upper spacer and the gas distribution grid, each grade fluidizing chamber has the air outlet slit that is positioned at the top and the air intlet that is positioned at the lower part side, the air outlet slit of described first order fluidizing chamber links to each other with cleaner, and the air outlet slit of all the other each grade fluidizing chambers is connected by the air with circulation axis flow fan with the described air intlet of upper level fluidizing chamber.
The present invention is owing to said structure, and its advantage is: dry run is controlled easily.The air that is used for dried material repeatedly contacts with material, heat energy utilization rate height, and needed air capacity significantly reduces during fluidization, and the installed capacity of fluid bed and thermal energy consumption all reduce greatly.By fully contacting of dry air and material, it is over-drying that the not enough and other part of local desiccation can not appear in product.The present invention has prevented that Strontium dichloride hexahydrate is because deviating from the efflorescence of partially crystallizable water and luming in storage and transport process.
Description of drawings
The present invention can further specify by the non-limiting embodiment that accompanying drawing provides.
Fig. 1 is flow chart of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is cutaway view of the present invention.
Among the figure: 1, charge door; 2, air outlet slit; 4, fluid bed body; 5, upper spacer; 6, go up fluidizing chamber; 7, discharging opening; 8, vibration isolation spring; 9, following fluidizing chamber; 10, lower clapboard; 11, air; 12, circulation axis flow fan; 13, vibrating motor; 14, air intlet; 15, hand hole; 16, gas distribution grid.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
Referring to accompanying drawing 1, the flow chart among the figure is the step of the drying means of Strontium dichloride hexahydrate disclosed in this invention, it is characterized in that, comprises following method and step:
1). reinforced: as the Strontium dichloride hexahydrate after the centrifugation to be joined the charge door of multistage fluidized bed by vibra feeder, make on its gas distribution grid that is evenly distributed in fluid bed;
2). multilevel drying: the fluidizing chamber that fluid bed is separated into some grades of connections, material can flow along gas distribution grid, Strontium dichloride hexahydrate passes through the fluidizing chambers at different levels of fluid bed successively at the vibration effect lower edge of fluid bed gas distribution grid, simultaneously, temperature is that 50-100 ℃ hot-air enters from the bottom of final stage fluidizing chamber, the gas distribution grid that hot-air passes in the middle of the fluid bed carries out fluidized drying to Strontium dichloride hexahydrate, air top from fluidizing chamber under the guiding of circulation axis flow fan of passing gas distribution grid enters upper level fluidizing chamber bottom by pipeline, so continue reverse each grade fluidizing chamber that enters successively, material is carried out counter-current drying and discharges after dedusting at the first order fluidizing chamber top of fluid bed;
3). discharging: Strontium dichloride hexahydrate is after drying discharged from the discharging opening of multistage fluidized bed afterbody, packing warehouse-in after checking.
In the present embodiment, moist Strontium dichloride hexahydrate, is evenly distributed on the gas distribution grid of fluid bed by the charge door of vibra feeder by fluid bed by after the centrifugal treating.
The fluid bed of present embodiment is divided into the level Four fluidizing chamber, and Strontium dichloride hexahydrate passes through the level Four fluidizing chamber of fluid bed successively under the vibration effect of fluid bed, and simultaneously, temperature is that 50-100 ℃ hot-air enters from the bottom of fourth stage fluidizing chamber.After the material on the dispersion plate in the middle of the fluid bed is carried out drying, hot-air is by the guiding of circulation axis flow fan, enter pipeline enters successively the third level, the second level, the first order fluidizing chamber from the top, so continue reverse entering successively in each grade fluidizing chamber, material is carried out counter-current drying.Hot-air discharges after dedusting at the first order fluidizing chamber top of fluid bed.The strontium chloride that comes out from the fourth stage is through the gravimetric method analysis, and the content of Strontium dichloride hexahydrate is 99.7%, satisfies the requirement of product quality.
Described air intlet 14 in the present embodiment feeds hot-air.
The invention provides and comprise that one is divided into up and down two-part fluid bed body 4 by gas distribution grid 16, it is characterized in that: the three pairs of upper spacers 5 and the lower clapboard 10 that lay respectively at the correspondence of described gas distribution grid 16 upper and lowers are separated into the level Four fluidizing chamber with fluid bed, gapped between described upper spacer 5 and the gas distribution grid 16, each grade fluidizing chamber has the air outlet slit 3 that is positioned at the top and the air intlet 14 that is positioned at the lower part side, the air outlet slit 3 of described first order fluidizing chamber links to each other with cleaner, and the air outlet slit 3 of all the other each grade fluidizing chambers is connected by the air 11 with circulation axis flow fan 12 with the described air intlet 14 of upper level fluidizing chamber.
In above-described embodiment, vibrated fluidized bed inside is separated into four independently fluidizing chambers, open air intlet 14 in the following side of fluidizing chamber 9, the bottom of each fluidizing chamber is inverted cone-shaped structure so that just in case when having material to leak down from gas distribution grid 16 convenient hand hole 15 from the awl end take out.16 of upper spacer 5 and gas distribution grids have the slit.Described fluid bed body 4 bottoms have vibration isolation spring 8, and its side has vibrating motor 13.Under the vibration effect, material is by the slit between 16 of above-mentioned upper spacer 5 and the gas distribution grids, and a fluidizing chamber moves to a fluidizing chamber afterwards in the past.Described slit can determine that this slit in the present embodiment is between 0.05-0.15 rice according to dry material.The gas that comes out of fluidizing chamber 6 enters the following fluidizing chamber 9 of upper level by air 11 under the effect of circulation axis flow fan 12 on the one-level of back.Circular flow axial flow blower 12 is equipped with the frequency conversion flow regulators, changes the air mass flow of each grade by the revolution of regulating every typhoon machine, prevents from collaborating between not at the same level.
Claims (1)
1. the drying means of a Strontium dichloride hexahydrate is characterized in that, comprises following method and step:
1) reinforced: as the Strontium dichloride hexahydrate after the centrifugation to be joined the charge door of multistage fluidized bed by vibra feeder, make on its gas distribution grid that is evenly distributed in fluid bed;
2) multilevel drying: fluid bed is separated into the fluidizing chamber that level Four is communicated with, and Strontium dichloride hexahydrate passes through the fluidizing chambers at different levels of fluid bed successively at the vibration effect lower edge of fluid bed gas distribution grid; Simultaneously, temperature is that 50-100 ℃ hot-air enters from the bottom of final stage fluidizing chamber, the gas distribution grid that hot-air passes in the middle of the fluid bed carries out fluidized drying to Strontium dichloride hexahydrate, dried air at the corresponding levels top from fluidizing chamber under the guiding of circulation axis flow fan enters upper level fluidizing chamber bottom by pipeline, like this reverse each grade fluidizing chamber that enters successively carries out counter-current drying and discharges after dedusting at the first order fluidizing chamber top of fluid bed material;
3) discharging: Strontium dichloride hexahydrate is after drying discharged from the discharging opening of multistage fluidized bed afterbody, packing warehouse-in after checking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110149167 CN102226628B (en) | 2011-06-03 | 2011-06-03 | Method for drying strontium chloride hexahydrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110149167 CN102226628B (en) | 2011-06-03 | 2011-06-03 | Method for drying strontium chloride hexahydrate |
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| CN102226628A CN102226628A (en) | 2011-10-26 |
| CN102226628B true CN102226628B (en) | 2013-08-07 |
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| CN 201110149167 Active CN102226628B (en) | 2011-06-03 | 2011-06-03 | Method for drying strontium chloride hexahydrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104990368A (en) * | 2015-06-26 | 2015-10-21 | 四川省青川县自然资源开发有限公司 | Fluidized bed drying line for low-sulfur parch chips |
| CN114396764B (en) * | 2022-03-24 | 2022-06-17 | 浙江晟格生物科技有限公司 | Suspension drying method for biological sugar crystallization material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3325967A1 (en) * | 1983-07-19 | 1985-02-07 | NEOTEC Gesellschaft für Nahrungsmittelverfahrenstechnik mbH & Co KG, 2000 Norderstedt | Fluidised bed apparatus |
| CN201302350Y (en) * | 2008-09-09 | 2009-09-02 | 贵阳铝镁设计研究院 | Primary dewatering device for carnallite |
| CN101544391A (en) * | 2009-05-06 | 2009-09-30 | 重庆新申世纪化工有限公司 | Method for preparing caking resistant strontium chloride |
| CN201852411U (en) * | 2010-11-15 | 2011-06-01 | 濠锦化纤(福州)有限公司 | Drying and impurity removing device for regenerated PET (polyester) sheets |
| CN202133234U (en) * | 2011-06-03 | 2012-02-01 | 重庆邮电大学 | Multistage circulating and drying fluidized bed |
-
2011
- 2011-06-03 CN CN 201110149167 patent/CN102226628B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3325967A1 (en) * | 1983-07-19 | 1985-02-07 | NEOTEC Gesellschaft für Nahrungsmittelverfahrenstechnik mbH & Co KG, 2000 Norderstedt | Fluidised bed apparatus |
| CN201302350Y (en) * | 2008-09-09 | 2009-09-02 | 贵阳铝镁设计研究院 | Primary dewatering device for carnallite |
| CN101544391A (en) * | 2009-05-06 | 2009-09-30 | 重庆新申世纪化工有限公司 | Method for preparing caking resistant strontium chloride |
| CN201852411U (en) * | 2010-11-15 | 2011-06-01 | 濠锦化纤(福州)有限公司 | Drying and impurity removing device for regenerated PET (polyester) sheets |
| CN202133234U (en) * | 2011-06-03 | 2012-02-01 | 重庆邮电大学 | Multistage circulating and drying fluidized bed |
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| CN102226628A (en) | 2011-10-26 |
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