Process for packing products of diaminium phosphate and cooling process
A technology of diammonium phosphate and cooling method is applied in the directions of ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, phosphate fertilizer, etc., and can solve the problems of not being able to wrap oil evenly, increasing the consumption of wrapped oil, and failing to achieve appearance and color, etc. Achieving a good appearance, saving consumption and reducing package costs
Inactive Publication Date: 2006-06-28
GUIZHOU KAILIN GRP CO LTD
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Problems solved by technology
This process has the following disadvantages: due to the low temperature of the material entering the wrapping machine, the wrapping oil sprayed into the wrapping machine is rapidly lipidized on the outside of the product particles, resulting in that the outside of the product particles cannot be evenly wrapped by the wrapping oil in the wrapping machine
The products after leaving the wrapping machine either do not achieve a consistent appearance color, or because the wrapping oil coating is too thick, resulting in agglomeration problems after packaging
At the same time, because customers have high requirements on the appearance of the product, in order to ensure the appearance and color of the product, we had to increase the amount of packages
Increased package oil consumption
Method used
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Experimental program
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Embodiment Construction
[0010] In the production of a phosphate fertilizer workshop in a certain factory, after the diammonium phosphate material obtained by ammonification of phosphoric acid is dried with a dryer, the discharge temperature is controlled at 80°C±5°C, and the hot material is sent to the package through a bucket elevator or a conveyor belt The temperature of the packaged material is about 75°C, and then sent to the fluidized cooling bed cooler through the bucket elevator or conveyor belt to cool it to below 55°C, and then packed into the warehouse.
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The invention discloses a packaging and cooling method for diammonium phosphate product that controlling the discharge temperature of diammonium phosphate at 70-100 degree centigrade, after drying, directly sending the material into the packaging machine to take packaging process, cooling the material to 55 degree centigrade in fluidized bed cooling machine. The invention could save the power consumption, decrease producing cost, and it has good appearance.
Description
[technical field] [0001] The invention relates to a production process of phosphate fertilizer, in particular to a method for wrapping and cooling diammonium phosphate products. [Background technique] [0002] As we all know, chemical fertilizers adopt encapsulation technology, which can gradually release the nutrients of fertilizers in the soil, maintain soil fertility for a long time, and avoid the loss of fertilizer nutrients. People have made many achievements in the research of fertilizer wrapping technology, and there are 12 relevant patent applications retrieved, such as CN00114580.0 "mineral wrapped slow-release compound fertilizer and its preparation method", CN02126743.X "for Slow-release outer coating layer of coated slow-release fertilizer", etc. [0003] The traditional diammonium phosphate wrapping technology adopts the process of cooling the fertilizer first and then wrapping it. This process has the following disadvantages: due to the low temperature of the...
Claims
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IPC IPC(8): C05B7/00
Inventor 周俊生黎明俊戴凌云李凯
Owner GUIZHOU KAILIN GRP CO LTD
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