Welcome to Changzhou Yongchang Granulating Drying Equipment Co., Ltd.
tel:0086-13806126909
DF Processing Equipment
The company provides free equipment for testing, you are welcome to bring the material test.
Can provide 200mL suspension test, each batch of test can clean the equipment, to ensure that the products do not mix with each other, in order to achieve the ideal test products. Air temperature can be adjusted 100-200 degrees, 100 degrees, the same can be dried into hollow particles. The company provides free formula and equipment for testing.
Spray granulation is a method in which the suspension is sprayed into the hot air in the drying chamber by atomizer to make the water evaporate rapidly and make fine dry particles. In a few seconds to complete the material liquid concentration, drying, granulation process. After wet pulverized slurry is first atomized into mist microdroplets, moisture is evaporated by hot air, the solid phase in the droplet aggregates into dry particles. The granules made by spray granulation are hollow and porous, so they have good wetting and disintegration performance in water, and high suspension rate.
Spray granulation is a method in which the suspension is sprayed into the hot air in the drying chamber by atomizer to make the water evaporate rapidly and make fine dry particles. In a few seconds to complete the material liquid concentration, drying, granulation process. After wet pulverized slurry is first atomized into mist microdroplets, moisture is evaporated by hot air, the solid phase in the droplet aggregates into dry particles. The granules made by spray granulation are hollow and porous, so they have good wetting and disintegration performance in water, and high suspension rate.
Dry suspension agent and water dispersible granule are essentially the same thing, the difference is that dry suspension agent is made of water suspension agent after the use of spray granule, so the appearance is generally spherical, and water dispersible granule mainstream for dry process, currently more common for extrusion granule and sulfide bed granule
1. Definition of dry suspension:
Dry suspension is one of the pesticide dosage forms. It is made by dehydration of water suspension, as the name suggests -- dry suspension (English code DF). In recent years, the agricultural pesticide testing institute of the ministry of agriculture has combined dry suspension agent with water-dispersible granule, which is collectively referred to as water-dispersible granule (English code WDG). In fact, the processing method is different, DF is wet crushing, granulation, WDG is dry crushing, granulation.
2. Manufacturing process of dry suspension:
Raw material + auxiliaries + filler + water - ingredients - homogenization - rough grinding - fine grinding - pressure spray drying - testing - packaging
Is technical, additives, packing, water added to the ingredients in the groove, stir well, then use high speed shearing machine for coarse grinding, again into two levels of fine grinding sanding machine, mill after joining granulating agents into the pressure after drying, spray drying tower granulation, detection of spray drying the bottom out of the finished product, after passing into the storage tank, after waiting for packaging, can be factory sales.
3. Characteristics of dry suspension:
Advantages:
A. The fineness of the diluted natural particles was up to 1,5 microns, significantly better than that of the dry ones (10,40 microns). The increase of fineness will be reflected in the increase of suspension rate, dispersibility and pharmacodynamics.
1, in water can quickly disintegrate, dispersion and suspension of good. 2. Extremely fine liquid particles can be uniformly attached to the surface of crops to form a dense protective film, supplemented by good adhesives, which can increase the adhesion performance and resist rain-washing. 3. The size and proportion of the chisel in the medicinal liquid are reasonably distributed, which can not only ensure the quick effect and lasting effect of the medicine, but also protect the sufficient and complete contact between the medicine and the surface of crops, so that the effective ingredients can play a role in a uniform and consistent way, and each part of the leaf can be more evenly used to ensure a longer lasting effect period and improve the efficacy. 4, good safety, not easy to produce drugs, even in the flowering can also be used.
B. The environment of the production workshop has been greatly improved, and there is basically no dust hazard in wet grinding, drying and granulation, fundamentally changing the situation that dry grinding, granulation and drying process "the product is good-looking, but the workshop cannot see".
C. As wet process materials are transported in pipelines, continuous production can be realized and automatic control can be achieved, and the equipment level can be greatly improved.
D. As the drying process is spray drying without extrusion, water will evaporate rapidly in a very short time and the particles will be fluffy, so the quantity and quality requirements of additives can be reduced, which can save the cost of additives.
