We can provide the bulk packing of sulphur pastilles with 99% purity in different size. They are mostly used in agricultural, industrial and fertilizers applications. They are produced by the drop forming and properly synthesized by using the top technologies. They possess high quality and have yellow crystal appearance.
Pastillated sulphur are in the form of hemispherical pastilles, made by solidifying liquid sulphur through drop-forming process called Pastillated process.
Pastillated process uses a metal cooling belt and a rotary depositor connected on it transversely. This drop forming depositor contains a perforated shell which can rotate. There's a metering bar inside the shell which prepared the closed rows of metered drops. At 125°C and specified pressure, molten sulphur is pumped to the drop-forming depositor through heated pipes.
Rotational speed of both, the cooling belt and perforated shell is synchronized, so that the droplets take hemispherical shape, when contact with belt. The droplets are solidified at surface due to the convection and conductive processes.
A cooling system is used to control the temperature of the cooling belt. This system circulates the cooling water which is sprayed into the belt. Product thus occurred is of high quality as heat transfer rate in between droplets to metal belt as well as metal belt to cooling water is controlled. By applying a releasing agent to cooling belt, end product is discharged at a temperature of 70°C.