Oman Cement Company

Oman cementumum Company ( SAOG ) was formed in 1978. Rusayl cement whole works was completed in 1983 with an one-year incorporate cement fruit contentedness of 624,000 dozenss, of cement. In 1999 clinkering capacity expanded to a sum of 1.2 million dozenss per twelvemonth. The 2nd performance origin came on watercourse in middle 1998. Presently the company is on the job(p) on spread military expedition the capacity of works signifier 1.26 MTS per twelvemonth to 1.70 MTS per twelvemonth by upgrading production line No. 1 and No. 2.The company inst each(prenominal)ations atomic number 181- Computerized FabricationOman cement fabrication procedure is to the full computerized.This avoids major jeopardies in fabrication and ineluctably less work force.2- Central LaboratoryThe Quality Control is support by railroad cardinal research lab consisting of robotics, X-ray spectrometers, optical maser component size analysers and computerized physical belongingss proving equipment .3- Quality counsel System and Environmental Management Systemoman cement Quality Management System is in accordance with the Quality Assurance mathematical operations of ISO 9001 2000 enfranchisement.4- Pollution Control.The Oman cement company produces many types of cement which argon1- Ordinary Portland CementIt is type I Portland cement. Its utilizations atomic number 18 strengthened concrete edif frostings, Bridgess and railroad constructions. The typical mix make ups of this type are55 % ( C3S ) , 19 % ( C2S ) , 10 % ( C3A ) , 7 % ( C4AF ) , 2.8 % MgO, 2.9 % ( SO3 ) , 1.0 % Ignition loss, and 1.0 % bounteous CaO.2- Sulphate foul CementIt is type V, is utilise where sulfate opposition is of import. Its typical compound composing is38 % ( C3S ) , 43 % ( C2S ) , 4 % ( C3A ) , 9 % ( C4AF ) , 1.9 % MgO, 1.8 % ( SO3 ) , 0.9 % Ignition loss, and 0.8 % free CaO.3- Moderate sulfate resistantIt is type II cement. This type of cement can be use in constructions of considerable mass, such as big wharfs, heavy abutments, and heavy retaining walls. Its usage volitioning make love slew temperature rise particularly when the concrete is capable to hot conditions. Its typical compounds composing is51 % ( C3S ) , 24 % ( C2S ) , 6 % ( C3A ) , 11 % ( C4AF ) , 2.9 % MgO, 2.5 % ( SO3 ) , 0.8 % Ignition loss, and 1.0 % free CaO.4- fossil oil Well CementOil good cement, used for oil Wellss grouting, ordinarily made from Portland cement cinder or from blended hydraulic cements. It is used for cementing work in the boring of oil Wellss where they are capable to in high spirits temperatures and force per unit areas. Its typical compound composing isMgO 6.0 % SO3 3.0 % Loss On Ignition 3.0 % C3S 48 % -65 % C3A 3.0 % Insoluble Residue 0.75 % C4AF+2C3A 24 %Production methods at that place are four phases to require forth cement that Oman cement utilizing which are1- Preparation of the natural press at preies2- Heating and chilling to bring forth cinder3- Preparatio n of the cement4- Cement waddingProcedure description1- Preparation hurtle at preiesThe natural stuff contains of limestone ( 80 % of natural stuff ) , silica, aluminate and Fe ore. The preies located around the Oman cement works. At preies the natural stuffs are extracted with heavy equipments. Then the limestones are crushed with fluid crushers connected with long conveyor hit to transport them to storage go throughing the car lab to compend the samples with roentgen ray each two hours. afterwards that the natural stuff are go to reservoirs. Then they are go with transporter belt to the altogether factory to crunch the natural stuffs. lastly the crunching natural stuffs are moved to diversity reservoirs to acquire proper mixture in advance fed them to kiln.2- Heating and chilling to bring forth cinderThe natural stuffs are moved to impart, where heat exchange is occurred between these stuff and the raising hot gases from kiln, so the stuffs are separated from the gases. After that the stuff moved to calciner where the limestone is converted to calcium oxide, and so the calcined stuffs arefed to the kiln where the temperature about 1400 degree Celsius and so go forth from kiln to acquire cinder. Then the cinder leaves from kiln to bearing to cut down its temperature to 100 degree Celsiuss to be ready to be moved to cement factory.Kiln procedure3- Preparation of cementThe cinder that came out of the ice chest will be transported by the pail concatenation conveyer to the silo. The bag filter on the top of the silo is sized for the eating by the pail concatenation conveyer and thermic air enlargement in the storage. The cinder extracted from the silo is transported by belt conveyers to the cement proportioning. The gypsum is added to the cinder. Then the proportioned stuffs are conveyed via belt conveyer to cement crunching. Materials land by twine factory are transported centrifuge by pail lift. The harsh atoms separated return to ball factory for regrinding while the all right switch is collected by the bag filter behind the centrifuge and so conveyed to cement silo with an air slide and pail lift. Cement silos is used to hive away the cement.Cement factory4-Cement waddingThe cement from extraction systems under the cement silo is delivered to the dampen bin by air slide and the pail lift and vibrating screen, before being fed into each bagger. The bagged cement can be crocked straight or stored in depot temporarily.Machinery and EquipmentsNo. Name be1 Limestone Crusher used in rock prey to beat out limestone2 Clay crusher used in rock prey to oppress ashes3 Limestone Stacker use to travel limestone to preblending reserve4 Limestone reclaimer Used to acknowledge preblended mixture from preblending reserve5 Coal and Fe ore Crusher Used to oppress linear stuffs6 Coal and Fe ore Stacker Used to travel Fe ore to conveyor belt so to proportioning station7 Coal & A Fe ore reclaimer Used for repossessing all linear stuffs a nd ember8 painful factory used for natural stuffs crunching and drying9 Raw factory cull out Used to set the factory recess temperature.10 Preheater fan used to dry the natural stuffs11 Preheater and precalciner Preheater used for preheating and partial decarbonation, and precalciner for calcination12 merry-go-round kiln used to raise natural stuffs to a high temperature13 moil ice chest Used for slaking14 Cement factory Used to crunch cement15 Bag filter Used to register up dust16 Coal factory Used for coal drying17 Bulk stevedore for truck Used to lade the legal age18 Cement bagger Used to pack cement merchandiseQuality control systemThe quality control section in the Oman cement company map is to supervise merchandise quality in all phase of production get downing with pull outing the limestone from the prey till the phase of cement Millss, by taking samples and analysis them.1- The computing machine and x-ray analysisThe mechanization lab consists of automaton, x-ray spec trometers, optical maser atom size analyser and computerized physical belongingss.The samples will be taken by an automatic sampling station from a commove between the altogether factory and homogenising silo and so transported manually to the cardinal car lab, where it will be semi-automatically prepared and sent to an X-Ray analyser. The consequences analyzed will be sent to a proportioning computing machine. The computing machine will cipher the ratio of natural stuffs and direct out the set respect to constant feeder harmonizing to the chemical composings and natural repast faculty required.2- physiological analysisTo prove the choiceness, soundness, puting clip, strength, specific gravitation, heat of hydration and loss on fervour of the cement to accomplish the American specifications demand.Care processThe section maps are-Checking all machinery and equipments are work decently.-Scheduling and be aftering for protective caveat, prognostic care. coordinate with all sect ions for day-to-day job. Planning, organizing of preventative and breakdown activities for accomplishing high works approachability to run into production mark.The process that the Oman cement follows in antecedent of dislocation, preventative and shutdown care are1. Breakdown careIn instance of any breakdown care in the production section, they give education sing the dislocation to the care section, and care workers are sent to the production works to repair machine failures.2. Preventive carehere, a police squad of care workers is sent straight to the production workss to look into out whether in that location is any failure in the machinery or non.3. Shutdown careWhen the works is shut down the employees in the production section sent a missive to the care section and consecutive stairss are taken by care section to work out the failures. The works closure occurs every 6 month in March and September.The procedure of operating and observe production lines and machines immed iately, so they can watch the failure and harm of the machines and equipments to indemnify them or replace them.Technical directionThe proficient direction craft is to oversee all the mechanical, electrical things and keep the assorted equipments and everything that related to alimentation process, and this direction divided in many subdivisionsa- The machine subdivisionThe concern of this subdivision is prepare exigency and planning agenda and make it to all the equipments and describe it to name the unusual failure and hole it. Inspect the machinery, stoppage with drawings and specifications and rectification. It contacts with shop subdivision to supply the needed replacing parts and besides contacts with other subdivisions to keep the equipments at the workshop.At the workshop they fix the equipments in exigency conditions, look into the equipments if they work decently and routinely, takes care the equipments and aid to ashen them.B ) The machine operation subdivisionThe duty of this subdivision render the replacing parts, make an order outside the company to acquire novel parts, lathe the machine parts the required the workshops.degree Celsius ) The immediate machine care subdivisionThe duty of this subdivision is to look into and repair the production lines.vitamin D ) The electrical subdivisionThe electricity section is responsible to mend and ascertain the continuance of the work of all electrical and electronic equipment and preciseness instruments on the production line and besides supervises contact with other subdivisions to that the electricity working decently.