ISAOSA

ISAOSA

Factory project

Advanced fertilizer blending factory in Mexico

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ISAOSA

In the third quarter of 2021, EMT completed the installation of an advanced fertilizer blending factory.

The machines, now located in the port city of Topolobampo on the Gulf of California in Mexico, were produced in the Netherlands and shipped in 25 x 40 ft high cube containers to the end user, Insumos y Servicios Agrícolas de occidente S.A. de C.V. (ISAOSA). Installation of the factory was finished in July 2021. The complete machine is more than 200 m in length and is designed to run at a capacity of 300 tph. This capacity is achieved by running two lines in parallel to one another – this ensures the blend quality is high and filling of the machine can be achieved by multiple front loaders simultaneously. In line with the latest developments in fertilizer treatment, direct urea coating and blending has been implemented. A conditioner that breaks up any lumpy urea material is installed above a direct blending screw with a liquid injection point.

ISAOSA

By weighing both the urea conditioner and the liquid-adding unit the flow of both materials is constantly monitored and adjusted to ensure the end product is exactly as required.

The material is received on the central conveyors and other weighing hoppers dose any extra required material directly on top of the inhibited urea. In this way the inhibited urea can be directly incorporated into a blend with other products. A total of 12 dosing hoppers and six liquid-dosing units are incorporated per line. Another blending screw ensures that all products are properly mixed before they are directed over a coarse screen. A fine screen, which can be bypassed, can be used to sieve dust out of the blend. The final product is transported to one of the five stainless steel bulk hoppers, with a capacity of 30 t each, or directly onto the train filling shuttle conveyor. This conveyor can move over the outer fence of the compound to fill trains positioned on the railroad directly next to the production facility. Once the train is full the conveyor can be retracted to rest inside the compound.

A higher output

The complete blend line is computer-controlled and can be operated by one person from the central office.

With this machine line, ISAOSA can triple its annual production to a capacity of 300 000 tpy. Besides the granular fertilizer blending plant EMT is also installing a second blending facility at the ISAOSA warehouse. This unit is solely engineered to blend various water-soluble fertilizers into the required recipes. This machine line consists of 11 weighing hoppers that can be filled with big bags, bulk, or small bags. Again, the product is screened for large lumps and liquid can be added in the blending screw. A shuttle conveyor can discharge the material into three different bagging units for either small bags or big bags.
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