Blast furnace ironmaking system project consists of main process system and corresponding public and auxiliary supporting facilities, electrical automation control facilities, civil engineering and overall design. The main equipment and refractory materials generally used in blast furnace system engineering design process system, public and auxiliary supporting facilities, electrical automation control and general drawing transportation facilities are as follows:
- Main equipment and refractory materials of main process system
(1) Trough and feeding system
1) Main equipment: (sinter, pellet, lump ore, coke, return ore, return coke) feeder, vibrating screen, weighing, dust removal cover and belt conveyor, feeding main belt (or charging car, charging car winch), iron separator, electric hoist, etc;
2) Main refractory materials: cast stone lining and furan mastic.
(2) Furnace roof system
Bell less furnace top equipment (including receiving hopper, upper sealing valve, charging tank, lower sealing valve, material flow regulating valve, water-cooled air seal transmission gearbox and distribution chute), chute maintenance tools, furnace top steel ring, upper sealing valve steam heating device and piping, compact mechanical probe (AC variable frequency control), gearbox water cooling system, furnace top hydraulic station, pressure equalizing / releasing valve, silencer, cyclone dust collector, furnace top bridge crane, electric hoist, etc;
(3) Crude gas system
1) Main equipment: outlet pipe corrugated compensator, riser support, gas release valve, ash discharge ball valve, spiral ash cleaning humidifier, manhole, outlet pipe steel lining plate, block valve (for gravity dust collector), etc;
2) Main refractory materials: Clay refractory castable, spray coating.
(4) Furnace body system
1) Main equipment: cast iron, nodular cast iron, copper, copper / steel (composite) cooling stave, iron port, tuyere (large, medium and small sets), air supply branch pipe, shroud hanging device, material level detection device, cross temperature measurement, furnace throat steel brick, furnace top head protection plate (cast steel wear-resistant lining plate), furnace throat sprinkler, degassing tank, expansion tank, metal coated rubber hose and various valves;
2) Main refractory materials: ultra-high conductive graphite brick, (large and small) ultra microporous carbon brick, microporous corundum brick, special spray coating spraying, corundum mullite brick, composite brown corundum, Cylon bonded silicon carbide brick, Si3N4 bonded silicon carbide brick, phosphorus impregnated clay brick, magnesia brick, graphite ramming material, anhydrous high alumina pressing mud, anhydrous carbon pressing mud, iron filings filler, high alumina cement refractory castable, corundum ramming material Corundum mud, SiC mud, phosphate clay mud, SiC buffer filler, high aluminum buffer filler, clay high-strength castable, clay fireclay and clay brick, etc.
(5) Cast yard system
1) Main equipment: main ditch, iron, slag ditch and ditch cover, slag ditch inner mold and baking pipe, crane in front of the furnace, full hydraulic clay gun, full hydraulic / electric / pneumatic iron opening machine, hydraulic / electric swing nozzle, swing chute inner mold and baking device, ditch lining disintegrator, castable mixer, tuyere changer, hand-held pneumatic rock drill, electric vibration compactor, forklift, electric flat car and elevator for blast furnace;
2) Main refractory materials (consumables, which can also be listed as production refractory): castable permanent lining, clay heat insulation brick, Al2O3 SiC brick, castable working lining, high alumina brick, clay brick, ramming material, slag iron ditch cover spraying coating, gun mud, heat-resistant concrete, etc.
(6) (environmental protection drum) slag treatment system
Slag flushing ditch, granulation tank, condensing tower (including top release valve), dewatering drum, drum cover, hot water tank facilities, buffer tank, buffer tank spreader, dry oil lubrication device, water slag transportation belt conveyor system, wheel loader, etc;
(7) Hot blast stove system
1) Main equipment: hot air valve, hot air pipe pull and suspender, reverse flow stop valve, air mixing valve, gas combustion valve, gas shut-off valve, gas blow off valve, combustion supporting air shut-off valve, blow off valve, cold air valve, cold air blow off valve, flue valve, combustion supporting fan, heat exchanger, various pipe corrugated compensators, grate and pillar, ceramic burner, manhole, ignition hole, inspection hole, pipe sliding support, etc;
2) Main refractory materials: Clay lattice brick, low creep high alumina lattice brick, andalusite lattice brick, silica lattice brick, low creep clay brick, clay brick, andalusite brick, thermal shock resistant brick, mullite composite brick, silica brick, light clay brick, light high alumina brick, clay castable, light spray coating, acid resistant spray coating, ceramic wear-resistant castable, high temperature coating, silica refractory slurry, clay phosphate slurry Corundum phosphate mud, high alumina insulation mud, ordinary aluminum silicate fiber blanket and mullite fiber blanket, etc.
(8) Coal injection system
Raw coal conveying belt, electronic belt scale, coal feeder, flue gas furnace, medium speed coal mill, high concentration and low pressure pulse long bag dust collector, main exhaust fan, pulverized coal bunker, pressure relief bag, injection tank, distributor, fluidization device, maintenance crane, etc.
(9) Cast iron machine and tank repair warehouse
1) Main equipment: cast iron machine, can turning winch, rotary chain plate conveyor, grab crane, electric hoist, baking device for tank repair warehouse.
2) Main refractory materials: Iron trench ramming material, clay brick, clay mud, high alumina brick, high alumina mud, Al2O3-SiC-C brick, Al2O3-SiC-C refractory mud, metal fiber reinforced cement castable, MgO-C brick and spray coating, etc.