SU362631A1 - METHOD FOR OBTAINING GRANULAR FERTILIZERS - Google Patents
METHOD FOR OBTAINING GRANULAR FERTILIZERSInfo
- Publication number
- SU362631A1 SU362631A1 SU1317232A SU1317232A SU362631A1 SU 362631 A1 SU362631 A1 SU 362631A1 SU 1317232 A SU1317232 A SU 1317232A SU 1317232 A SU1317232 A SU 1317232A SU 362631 A1 SU362631 A1 SU 362631A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- granular fertilizers
- fertilizers
- obtaining granular
- water resistance
- heat treatment
- Prior art date
Links
Landscapes
- Fertilizers (AREA)
Description
Изобретение относитс к способу получени гранулированных удобрений, например, известковых . Известен способ получени гранулированпых удобрений путем распылительной сушки 5 пульпы гор чим теплоносителем с температурой 600-800°С и последующей термообработкой при температуре 300-400С. Однако получающийс продукт имеет невысокую механическую нрочность и водостой- 10 кость. Дл придапи гранулам новыщенной механической Прочности и ВОДОСТОЙКОСТИ термообработку известкового удобрени , например, СаСОз ведут прп температуре 500-700С.15 Данные, характеризующие механическую прочность продукта, представлены в таблице. Пример. Сухой грапулпрованпый меловой материал, полученный в бащенной распылительной сушилке, загружают в муфельную 20 электропечь с высотой сло в 10 см и выдерживают 20-30 мин до тех пор, йока температура материала не достигает 600°С. Затем продукт выгрулсают и охлаждают на воздухе. Полученные известковые удобрени сохра- 25 н ют сыпучесть после увлажнени и последующего высущивани , пе подвергаютс слеживаемостп при хранении, водостойкость проукта повышаетс в 60 раз за счет термообаботки . Прочность при сжатии образцов, Температуракцсл Предмет изобретени Способ получени гранулированных удобрений путем распылительной сушки пульпы с последующей термообработкой отличающийс тем, что, с целью придани гранулам повышенной мехапической прочности и водостойкости , известковое удобрение, например СаСОз, подвергают термообработке при температуре 500-700°С.This invention relates to a method for producing granular fertilizers, for example, lime fertilizers. A known method for producing granulated fertilizers by spray drying 5 pulp with a hot heat carrier with a temperature of 600-800 ° C and subsequent heat treatment at a temperature of 300-400 ° C. However, the resulting product has a low mechanical foot and water resistance. In order to adapt the granules of new mechanical strength and water resistance, heat treatment of lime fertilizer, for example, CaCO3, is carried out at a temperature of 500-700С.15 The data characterizing the mechanical strength of the product are presented in the table. Example. Dry grapulated chalky material obtained in a boosted spray dryer was loaded into a muffle electric furnace 20 with a layer height of 10 cm and held for 20-30 minutes until the material temperature reached 600 ° C. Then the product is unloaded and cooled in air. The obtained lime fertilizers retain their flowability after moistening and subsequent drying, are not subject to caking during storage, and the water resistance of the product is increased 60 times due to heat treatment. Compressive Strength of Samples, Temperatures Subject of the Invention A method of obtaining granulated fertilizers by pulp spray drying followed by heat treatment, in which, in order to give granules of increased mechanical strength and water resistance, lime fertilizer, for example, CaCO3, is heat treated at 500-700 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1317232A SU362631A1 (en) | 1969-03-28 | 1969-03-28 | METHOD FOR OBTAINING GRANULAR FERTILIZERS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1317232A SU362631A1 (en) | 1969-03-28 | 1969-03-28 | METHOD FOR OBTAINING GRANULAR FERTILIZERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU362631A1 true SU362631A1 (en) | 1972-12-30 |
Family
ID=20445166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1317232A SU362631A1 (en) | 1969-03-28 | 1969-03-28 | METHOD FOR OBTAINING GRANULAR FERTILIZERS |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU362631A1 (en) |
-
1969
- 1969-03-28 SU SU1317232A patent/SU362631A1/en active
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