Our manufacturing process starts with procurement of raw materials i.e. Single Super Phosphate (Powdered form). Our Company procures powdered form of SSP from our holding Company, Madhya Bharat Phosphate Private Limited.
After procurement of powdered SSP, the same is grinded in granulation drum where water is sprinkled to produce the granulated mixture which is moved via conveyor belt to the dryer drum wherein the mixture is heated upto a temperature of around 700 degree Celsius. After the heating process, the mixture is then moved to the cooler drum to extract moisture. The water vapor and exhaust gases are then released to atmosphere from chimney after passing through various pollution control equipments.
Samples of the final product is sent to the in house laboratory for testing and quality check to ensure that the final product contains the required chemical composition. After the samples pass the final quality check, the product is then sent to hopper for packing the same into HDPE bags, making them ready for dispatch.
Our manufacturing process starts with procurement of raw materials. Major raw materials required for manufacturing of NPK is Nitrogen, Phosphate and Potash.
After the procurement of raw materials, actual manufacturing process starts with Granulation as the first step. In this step, raw materials are mixed with water to form granules. These granules are then moved to the drying drum via conveyor belt to dry the granules.
After this process, the granules are moved to the coolant drum to extract moisture and then the product passes through the vibrating screen to ensure that the product is available in various sizes.
The final product then passes a quality check in the in house laboratory to ensure that the final product is of adequate quality and contains the required chemical composition. Our Company manufactures NPK of varied chemical compositions.
Our in house laboratory checks whether different types of NPK contains the required chemical composition as per the said chemical formulae.
We use gazette bags for packing of our products. These bags are very easy to handle and facilitates easy stacking as well.
The manufacturing process starts with procurement of raw materials. Major raw materials required for beneficiation of rock phosphate is low grade rock phosphate. Our Company has entered into an agreement with MP State Mining Corporation for supply of raw materials.
Low grade rock phosphate chips procured from the mines contains moisture in the range of 3-10% and is required to be dried before grinding to take better and smooth output of grinding. A rotary drum with hot air is used for drying the low grade rock phosphate before feeding to the grinding mills.
Dry material is fed into grinding mill through a regulated feeder and the ground material is pneumatically transferred to ground rock hopper through a cyclone separator.
The low-grade rock phosphate is grinded in dry form, whereas floatation section requires material in slurry form, hence two tanks are provided with agitators to prepare slurry of requisite solid percentage. To obtain proper percentage of solids in the slurry regulated feeding system is provided to monitor water and ground phosphate before feeding to floatation section.
Silica separation floatation circuit
Sodium Silicate solution and sodium oleate solutions are added as per pre determined dosages for silica separation. In this floatation circuit float is phosphate and tails is silica. From this circuit silica is rejected and is transferred to silica thickener for dewatering. The float is Phosphate with carbonates & low silica is transferred to bulk thickener for further processing in Carbonate-Phosphate floatation circuit to separate carbonates.
Carbonate-Phosphate separation flotation circuit
Sulphuric acid and Phosphoric acid are added in predetermined dosage to separate carbonates. In this floatation circuit floats are rich in carbonate whereas tails are rich in phosphate. The tails from this circuit is transferred to phosphate thickener for dewatering. Float in this floatation circuit is carbonate and transferred to Carbonate Thickener for final rejects.
Dewatering and filtration
This section mainly deals with dewatering through thickener and filters. There are four thickeners in the process viz. silica thickener, bulk thickener, phosphate thickener and carbonate thickener. The function of thickeners is to thicken the slurry received from various processes by separating water. The thick slurry received from bulk thickener is sent to carbonate separation circuit which is then transferred to vacuum belt filter to discharge solid mixed tails to tailing yard. The phosphate thickener underflow is transferred to vacuum belt filter to obtain solid phosphate as final product.