OIL & GAS
In the oil and gas industry, refractory linings protect structures and equipment from high temperatures, ensuring safe and efficient operation. They resist sudden changes in temperature, without losing their properties, and protect against corrosive attacks from chemical compounds of hydrocarbons and reagents. In addition, these coatings provide thermal insulation, reducing energy losses and CO2 gas emissions and improving the overall efficiency of the process. Refractory linings provide adequate protection and insulation of equipment, contributing to operational safety by reducing risks associated with heat or chemical reactions. They are essential to the smooth operation of the oil and gas industry by protecting equipment from high temperatures, corrosion and maintaining effective thermal insulation.
REFRACTORY WORKS
Fumistry and Refractory work on the ammonia and urea production furnace including dyes:
VIBRATE CONCRETE AND PRIMARY GUIN-TINGS – REFORMER BELLOWS 203B001/2038203
Vibrated casting concrete and Guinting STREAM SUPER HEATER 203E002 PROCESS
GAS COOLER 203E in vibrated and guiting cast concrete
High temperature insulation services
REFRACTORY WORKS
Supply of refractory concrete
REFRACTORY WORKS
Refractory repair work (guniting, vibrated casting and welding of anchors) at the 530-R-002 regenerator of the RGCC unit of the Algiers refinery, providing the following means:
Human resources:
01 HSE Manager
02 refractory supervisors
06 refractory masons
03 welders 05 certified multi-skilled workers As well as the equipment necessary to carry out the work according to industry standards
Supply Refractory Concrete
REFRACTORY WORKS
Drying intervention of refractories. Installation of a drying system (burner, hot air ducts, flow and temperature control damper, etc.). Smoke work on furnace 101 B of the Client’s Ammonia unit on its site in Annaba Supply of Refractory mortar.
Provision of specialized personnel for the inspection and repair of the thermal insulation of the reformers during the scheduled shutdown in 2024 of the AOA thermal plant. Various refractory maintenance interventions
CEMENT
SECTOR
Rotary kilns: Rotary kilns are essential in cement production, heating the raw mixture to over 1,400°C to produce clinker. Refractory linings protect the furnace structure from high temperatures and corrosion caused by gases and materials inside. Each zone of the oven, depending on the temperature and chemical reactions, requires a specific refractory. The refractories must also be resistant to corrosion, particularly in the sintering zone where the clinker can attack the coating. § §Refractories provide essential thermal insulation, promoting energy efficiency and reducing cement production costs. They resist thermal shock, particularly during temperature changes when the oven starts and stops. Their lifespan is crucial to limit frequent shutdowns, thus reducing production costs. In addition to furnaces, other equipment such as cyclones, calciners, smoke chambers, collectors and coolers also require refractory liners to protect against heat and corrosion. These coatings are therefore essential for efficient, safe and high-quality cement production.
Refractory works
Smoking and refractory works including: Laying more than 3500 t of concrete and Brick-stage of the 3rd line of gray cement to the head of the ECDE GICA group with a capacity of 6000t/d of KK whose works are: Vibrated casting and stirring of: Cooler, Heating Blanket, Furnace Pipe, Precalcinator and Tertiary Sheath Vibrated casting and stirring of: Cyclones C5, C4, C3, C2 and C1 76 ML rotary kiln for briquetting Vibrated casting and mixing of: Upstream joint and Smoke box Vibrated casting and mixing of: V, mixing sheath and gas and materials sheaths
Refractory works
Provision of qualified personnel for the repair and maintenance of ECDE Mechanical and fumigation works including: Mechanical engineers Qualified and certified welders Mechanical and fumigation supervisors and team leaders. Mechanics and Support Mechanics Qualified Scary Masons.
Refractory works
Chimney and refractory work Including: – Pouring of concrete by vibrated formwork and projection (shotcrete) for the roof and side walls of the heating hood of the gray cement rotary kiln. – Concrete projection (shotcrete) for the vault and the periphery of the gray cement kiln. – Pouring of concrete by vibrated formwork for the smoke box and the inlet cone of the rotary kiln. – Concrete work for the spoon and the flour introduction slide. – Refractory masonry of the gray cement rotary kiln.
Refractory works
Chimney and refractory work Including: – Pouring of concrete by vibrated formwork and projection (shotcrete) for the roof and side walls of the heating hood of the gray cement rotary kiln. – Concrete projection (shotcrete) for the vault and the periphery of the gray cement kiln. – Pouring of concrete by vibrated formwork for the smoke box and the inlet cone of the rotary kiln. – Concrete work for the spoon and the flour introduction slide. – Refractory masonry of the gray cement rotary kiln.
Refractory works
Furnishing and refractory work including: Vibrated cast concrete and heating hood. Rotary masonry kiln 46ML. Rotary kiln with slide and concrete cone entrance.
Refractory works
Fumistry and Refractory works which consist of Repair The casing of the gas pipeline Rotary cement kiln: Demolition Refractory Concrete Lining Rotary kiln gas pipeline (09 ML). Vibrated poured concrete of the pipeline with anchor welding.
Refractory works
Fumistry, Refractory and cauldron work which consists of the Masonry rotary cement kiln and the tertiary Concrete zone: Bricklaying and routing 24ML with removal and cleaning of the kiln. Masonry with 05ML Mortar and Masonry without 19ML Mortar. Replacement of the charred sheet of the clay sheath with Concrete.
Refractory works
Smoke and refractory work includes Hot Gas Generator Grinding Cement Repair: Retaining Ring Installation and Welding. Replacement of bricks in critical areas with concrete.
Refractory works
The Fumistry and Refractory work consists of the repair of hot spots at the furnace level and the lining of the tertiary zone: Unclamping and rerouting between points 23-25 Μ. Masonry between points 23-25 M. Renovation of a brick cupboard on tertiary zone cladding
Refractory works
Fusistry, refractory and boilermaking work for the annual shutdown of the furnace which includes: 4.10 ML. 4.1 ML of briquetting in the oven. Clearance and evacuation of a cooling area and a 42.5m2 smoke box. Vibrating casting and gunning box and cooler. Change of 11 m2 of calcined sheet metal with welding of anchors.
Refractory works
Ceiling cooler repair including: – Installation of prefabricated concrete elements. – Reconstructed part of the damaged boilerwork.
Refractory works
Mechanical repair with change of the mechanical parts of the upstream seal of the rotary kiln during the annual shutdown, including the work: Change the entry sectors with kiln elevators (36 pcs). Material Flow Nozzle Change 19 Pc. Changing the wear rings on the upstream side and the oven side. Changes to lock nozzles, heat shield, seal ring and compensators with brackets. Reinforcement of the VRM cyclone skirt by supports and gussets.
Refractory works
Envelope burner for mechanical repair and boilermaking following a deformation in the middle of a truncated 1.5ML – EP 10 mm – Diam 600 mm including the work: Cut the truncated deformed. Manufacturing of a new section in 304 stainless steel. Laser alignment of the three trunks with fixing by spot welding. Semi-automatic welding on the inner and outer sides.
Refractory works
Manufacturing and installation of cyclone skirt Diam = 3700 L = 8510 mm EP = 8 mm of Vertical Material Grinder (VRM), including work: Manufacturing of skirts in our workshop according to plan. Preparation of the supports and welding of the fixing ring to the ground. use of a 300t crane to position and install the skirt with a height of 40M. cyclone ring welding with reinforcement by supports and gussets.
Refractory works
Manufacture, supply and assembly of metal framework for treadmill 180 m long quantity 106T, including the works: Manufacturing of metal framework elements in our workshops according to plan. Topographic survey for fixing the axes of the frame. Single pre-assembly per structural module. Assembly according to plan and topographical verification of levels and centering of axes permanently.
Refractory works
Assembly of two palletizing lines with two forklift lines for shipping cement loads. including the work: Reception and inspection of equipment at the customer’s premises according to packing list of 21 containers. Topographic location survey to fix the central axes of each line. Pre-assembly of equipment for each module. Assembly of modules in plan with permanent topographical control. Fixing the modules to the ground.
Refractory works
Assembling 180ML of coeyor belt, for connecting shipping to both pallet loading lines Fitting sitton envy report with logogr phic surveys for carrings Fitting region barrels Not playing a role in sport Fitting roller slides Fitting bag separator devices.
Rerfractory works
emptying of cement elevators with maintenance of the elevator bottoms including the work: emptying of silos with removal of material for recovery. Repair of equipment transport boxes with complete change of the canvas.
Refractory works
Provision of qualified personnel for the repair and mechanical maintenance of the ECDE including: Mechanical engineers. Qualified certified welders. Mechanical supervisors and team leaders. Mechanics and Mechanical assistance.
Refractory works
MECHANICAL MAINTENANCE. Work on chains, conveyor belts and elevators
STEEL SECTOR
Steel production involves the melting of raw materials at extremely high temperatures. Refractory linings protect structures and equipment from these high temperatures, allowing them to operate efficiently and safely. The refractories must be able to resist these changes without losing their properties. Additionally, refractory materials protect equipment walls against corrosive attack from fluxes and other materials used in the steelmaking process. These coatings also provide thermal insulation, which helps retain heat inside the ovens, thereby reducing energy losses and increasing the overall efficiency of the process.
Refractory works
– Refractory repair of the DRI ladle furnace and the refractory conduit of the DRI furnace as well as the DRI. (Oven, DRI, SMS, conduits, high gas, etc.) – Various interventions during technical shutdowns on different equipment.
Refractory works
Maintenance and repair of various ovens. Refractory Concrete Supply
Refractory works
MAINTENANCE WORK “SHUTDOWN” PROGRAMS OF DRP UNIT (Lot 05) OF THE AQS COMPLEX Supply of refractory concrete and refractory repair of the DRI shaft furnace and of the refractory lined conduit of the DRI furnace and the unit DRI of the AQS complex
OTHER SECTORS
Among Refratech’s areas of intervention: 1- aluminum: 2- gypsum. 3-galvanization. 4 batteries. 5-insinerators. 6 cables. 7-production of civil engineering bricks. 8-foundry. 9-ceramic. Particularly in the field of assembly and industrial maintenance.
Refractory works
Industrial mechanical assembly and installation of the new line, including: Mechanical assembly of the new dryers, including connection to the existing dryer. Complete installation of the compressed air piping network. Assembly of belt conveyors. Erection of the multi-story preparation tower, including the structural frame and mechanical equipment. Assembly of the finished product recovery area (Placo plasterboard). Renovation of the combustion chamber EXTENSION OF AN ELECTRICAL ROOM
Refractory works
Supply of refractories.
Refractory works
Supply of refractories.
Refractory works
Supply of refractories.
