SU614297A1 - Method of vacuum drying of heat-sensitive fine pulverulent materials - Google Patents
Method of vacuum drying of heat-sensitive fine pulverulent materialsInfo
- Publication number
- SU614297A1 SU614297A1 SU772443895A SU2443895A SU614297A1 SU 614297 A1 SU614297 A1 SU 614297A1 SU 772443895 A SU772443895 A SU 772443895A SU 2443895 A SU2443895 A SU 2443895A SU 614297 A1 SU614297 A1 SU 614297A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- vacuum drying
- heat
- pulverulent materials
- sensitive fine
- chamber
- Prior art date
Links
Landscapes
- Drying Of Solid Materials (AREA)
Description
(54) СПОСОБ ВАКУУМНОЙ СУШКИ ТЕРМОЧУВСТБИТЕЛЬНЫХ МЕЛКОДИСПЕРСНЫХ МАТЕРИАЛОВ (54) METHOD OF VACUUM DRYING OF THERMAL SENSITIVE SHALLOW DIFFERENT MATERIALS
Изобретение относитс к технике сушки и может быть использовано в химической, пищевой, медицинсксй и других отрасл х промышленности.The invention relates to a drying technique and can be used in the chemical, food, medical and other industries.
Известны способы вакуумнсй сушки тер- мочувствительных мелкодисперсных материалов , размещенных в камере, путем периодическо их продувки газом в пульсирук дем режиме lMethods are known for vacuum drying of thermosensitive fine particles placed in a chamber by periodically purging them with a gas in a pulsator mode l
Недостатком этого способа вл етс повышенный пылеунос при сушке целого р да мелкодисперсных материалов. В виде уноса пылевидных фракций тер етс до 20% продукта .The disadvantage of this method is increased pulverization when drying a whole range of fine materials. In the form of entrainment of dust fractions up to 20% of the product is lost.
Целью изобретени вл етс уменьшение уноса пылевидных фракций материала.The aim of the invention is to reduce the entrainment of dust fractions of the material.
Указанна цель достигаетс тем, что в описываемом способе вакуумной сушки термочувствительных мелкодисперсных материалов , вакуум создают в периоды прекращени продувки в течение 2-3 сек.This goal is achieved by the fact that in the described method of vacuum drying of thermosensitive fine materials, a vacuum is created during periods of cessation of purging within 2-3 seconds.
На чертеже изображено устройство дл осуществлени способа.The drawing shows a device for implementing the method.
Устройство содержит сушильную камеру 1, гаэораспределитель 2, па тру беж 3 дл ввода газа, вентили 4 и 5 соленоидногоThe device contains a drying chamber 1, a gas distribution valve 2, a pas 3 pipe for gas inlet, valves 4 and 5 of the solenoid
типа и люки загруеки и выгрузки прО(кта, соответственно 6 и 7.types and hatches of loading and unloading of pro (kta, respectively 6 and 7.
В камеру 1 через загрузочный люк 6 засыпают влажный мелкодисперсный материал, который необходимо высушить. При открытом вентиле 5 создают необходимое разрежение в камере 1, после чего вентиль 5 закрывают. Затем через патрубок 3 при оперы том вентиле 4 в камеру подают газ. Спой перехсаит во взвешенное состо ние. Подача газа длитс определенное врем , преимущественно О,5-5 сек. После этого вентиль 4 закрывают и открывают вентиль 5 дл создани разрежени в камере 1 при неподвижном слое. Вакуум в камере создают в периоды прекращени продувки в течение 2-3 секунд.In the chamber 1 through the loading port 6, wet fine material is poured, which needs to be dried. When the valve 5 is opened, the necessary vacuum is created in the chamber 1, after which the valve 5 is closed. Then through the pipe 3 with the opera tom valve 4 in the chamber serves gas. Sing out in a suspended state. The gas supply lasts for a certain time, preferably O, 5-5 seconds. After that, the valve 4 is closed and the valve 5 is opened to create a vacuum in the chamber 1 with a fixed bed. Vacuum in the chamber is created during periods of cessation of purging within 2-3 seconds.
Благодар раздельному ведению продувки газом в пульсирующем режиме и поддержани разрежени в камере резко уменыиаегс унос пылевидных фракций материала.Due to the separate maintenance of gas purging in a pulsating mode and the maintenance of a vacuum in the chamber, abnormal fractions of the material are abruptly reduced.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772443895A SU614297A1 (en) | 1977-01-10 | 1977-01-10 | Method of vacuum drying of heat-sensitive fine pulverulent materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772443895A SU614297A1 (en) | 1977-01-10 | 1977-01-10 | Method of vacuum drying of heat-sensitive fine pulverulent materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU614297A1 true SU614297A1 (en) | 1978-07-05 |
Family
ID=20692194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772443895A SU614297A1 (en) | 1977-01-10 | 1977-01-10 | Method of vacuum drying of heat-sensitive fine pulverulent materials |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU614297A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4769922A (en) * | 1985-10-28 | 1988-09-13 | Rutger Larson Konsult Ab | Method and means for removing liquid from moist metal particles |
-
1977
- 1977-01-10 SU SU772443895A patent/SU614297A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4769922A (en) * | 1985-10-28 | 1988-09-13 | Rutger Larson Konsult Ab | Method and means for removing liquid from moist metal particles |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1435156A (en) | Method of and apparatus for drying particulate material | |
| NO742593L (en) | ||
| US3233334A (en) | Flash drying apparatus and method utilizing intermittent pulses of drying gas | |
| SU614297A1 (en) | Method of vacuum drying of heat-sensitive fine pulverulent materials | |
| US4624058A (en) | Fluidized-bed dryer | |
| GB1402652A (en) | Methods of and apparatus for steaming food materials | |
| HU9300019D0 (en) | Device for drying wet granular materials with superheated steam | |
| US2974419A (en) | Method of and apparatus for drying solid particles | |
| Muralidhara et al. | Acoustic drying of green rice | |
| GB1261535A (en) | Fluidized bed dryer | |
| GB1233112A (en) | ||
| JPS615767A (en) | Method and apparatus for continuous vacuum drying | |
| US3343886A (en) | Hopper structure | |
| US1431213A (en) | Laundry drier | |
| GB1240457A (en) | Improvements in or relating to pneumatic material handling apparatus | |
| GB1332837A (en) | Fluidized pneumatic conveyor | |
| GB1261536A (en) | Fluidized bed dryer | |
| US1463279A (en) | Method of drying gases | |
| US205606A (en) | Improvement in processes for steaming and drying grain | |
| GB1270307A (en) | Particle drying method | |
| GB327409A (en) | Improvements in and relating to drying processes and apparatus and in products thereof | |
| SU1198345A1 (en) | Method of dispersed materials treatment | |
| GB861247A (en) | Process of and apparatus for drying solid particles | |
| GB292642A (en) | Improved method and apparatus for effecting reactions between solid materials and air and/or gas | |
| SU518606A1 (en) | Intermittent Dryer for Bulk Materials |