Quality Systems
We would like to introduce ourselves as growing and premium brand manufacturers of cement in the North Eastern Region. “Amrit” Cement is a ISO 9001:2008 certified, modern state of the art plant situated amidst beautiful settings in Jaintia Hills, Meghalaya at village: Umlaper. We produce premium brand products in North East which started getting widely accepted throughout NE within a short period of launching. The plant’s capacity is 1 million tons per annum (MTPA) with a captive power plant of 10 MW to ensure uninterrupted operation of the Plant throughout the year.



Pre-Blending & Raw meal Stage
Limestone from mines are brought to plant site & stored in the yard then fed to dump hopper of primary Crusher by mixing high &low grade limestone in defined proportion to meet the quality norms. The Primary crusher is designed with 350 TPH and secondary crusher is installed to reduce the limestone size to further meet the process requirement before reaching the longitudinal stock piles. Longitudinal stacking method is also termed as “Chevron Method” to improve the consistency while re-claiming.

The stacker & re-claimer is designed for stocking & extraction of limestone and other corrective materials are fed in to respective hopper.Underneath the hoppers weight feeders are installed to make the proportions of desired mixing ratio.

Raw materials required for manufacturing Clinker & cement is Limestone, Clay & Laterite. All the raw materials are stored in respective hoppers and underneath the weight Feeders are installed to make the mix proportion. Predominantly, 90 – 95% of Limestone, 2 – 5% of Clay and 3 – 5% Laterite. The above mix proportion is grounded in Raw mill @ 110 – 118TPH (Ball mill) to desired fineness and fed to CF silo (continuous Flow silo – concreted, capacity 4500MTs) where extraction and filling takes place simultaneously. This kind of system is well proven for uniform feed to kiln to avoid the variation in burning system.


Soiled Fuel
Coal is used for burning the raw meal. The Coal received from different vendors are stacked in designated coal shed and quality is checked by colleting the samples manually, then proportionately mixed if required to get uniform desired quality. The coal is fed in dump hopper to feed in the ball mill where it is pulverized to desired fineness @ 12 – 13 TPH and stored in Fine coal bins for PC & Kiln firing.


Pyro-Process
The V-stage pre-heater is designed for better and the pulverized raw metal is taken to Pre-heater through bucket elevator where the material passes through different temperature and pressure and the calcinations takes place to the extent of 90 - 95oC before reaching the kiln inlet. The calcinated material enters the kiln and then it is burnt up to 14500c to form clinker phases. The hot clinker is then dropped in Great Cooler where the clinker is cooled to 100 – 120oc to stabilize the compounds C3S, C2S, C3A &C4AF which have cement-like properties and strength developing compounds.

The Rotary Kiln is designed for 1500TPD and the clinker produced is cooled in cooler and transported to clinker stock pile in closed condition with 10,000MTs cap.




Laboratory
The Laboratory is well equipped with latest equipment’s like XRF & XRD are imported from Germany to monitor & control all incoming, in-process and finished product at specified interval. Chemical Laboratory is also facilitated with modern techniques & qualified staff to check the routine samples and purchased materials.

Quality Control in Cement Production- XRF, XRD from BRUKER Germany - Guarantees constant high product quality

Analysis with X-Ray Fluorescence allows us to check raw material to clinker more rapidly, reliably and economically than any other method. No other system combines flexibility and trouble free operation analysis in cement industry.

As Physical Testing Laboratory is statutory requirement (BIS) for testing of Final product ground in cement mill before dispatch, most of the equipment’s are procured from reputed companies to monitor & maintain the products quality above the BIS norms.

XRF IS MOSTLY USED FOR DETERMINATION OF ALL OXIDES OF RAW MATERIALS, SEMI FINISHED AND FINISHED PRODUCTS.

LIKE- SiO₂, Al₂O₃, Fe₂O₃, CaO, MgO,Na₂O, K₂O,Cl etc.

XRD IS USED FOR DETERMINATION OF PHASE ANALYSIS OF SEMI PRODUCT & FINISHED PRODUCTS. LIKE – C₃S, C₂S, C₃A, & C₄AF.


Computerization
Entire plant operations are controlled via control room, where in all process parameters are monitored by highly skilled process engineers. A CCTV is used to monitor the rotary kiln operations.


Cement Grinding Stage
90 – 95% of the clinker is mixed with gypsum and ground in Cement ball mill to produce quality cement OPC 43 & 53 where as PPC is produced with addition of Fly ash and purchased from nearby source.


Packing Plant
The finely ground final product cement is packed in 50kgs PP bag with help of Rotary Packer having 12 spouts supplied by M/s. Enexco

CLINKER IS STORED IN STOCK PILE WHICH IS TOTALLY COVERED TO AVOID EXPOSURE TO AMBIENT CONDITIONS.