Converter the working requirement of each place lining
Should understand magnesian carbon brick to be on converter the application of each place, first, need to understand converter the working environment of each place. It is the reason that the eroding that each place gets easily mars below.
1. Mouth
Change of the feed a machine, blowing, tapping, temperature when pouring broken bits is big, slag is eroded, of the waste gas that carry this world is brushed, machinery suffers to bump when feed a machine and clear steel, broken bits.
2. Furnace cap
Slag suffers to erode when sampling and tapping, temperature change is big, element of the carbon in the brick when empty furnace is easy be oxidized, suffer what waste gas reachs dust to erode with wear away.
3. Shaft
Side of feed a machine: Suffer those who abandon steel and molten iron to bump brush with , temperature change is big.
Tapping side: Suffer what slag reachs molten steel to erode with wear away, the thermal shock that slag and molten steel get when tapping and are brushed.
Trunnion area: Lining hangs broken bits little, element of the carbon in the brick when empty furnace is oxidized, the effect of unusual force suffers when furnace bend is moved.
Broken bits line: Slag is eroded.
Hearth: Get molten steel acuteness is brushed with wear away.
4. Compound blowing turns by the top brick of hearth air feed
Suffer molten steel and slag chemistry to erode brush with acuteness , temperature changes suddenly reach oxidation.
5. Tapping mouth
Suffer molten steel to brush, slag is eroded reach temperature change is acuteness.
The application of magnesian carbon brick on converter
Analyse through above knowable, change of temperature of place of cap of mouth, furnace is acuteness, corrode getting residue is more serious, it is good to should choose heatproof shake sex, fight the magnesian carbon brick with broken bits strong sex. Two side divide trunnion outside action is being marred when sufferring blowing, the surface is enclothed without layer of protective broken bits, repair not easily, easy oxidation of the carbon in the brick, should build by laying bricks or stones builds the sex that fight broken bits the brick of high quality magnesian carbon with fight oxidisability admirable, good. Position of broken bits line and slaggy and long-term contact, corrode getting residue is serious, need build by laying bricks or stones to build have admirable the magnesian carbon brick of the sex that fight broken bits. The splash action of the slag when side-blown of feed a machine is enraged and molten steel causes chemistry easily to erode, wear away, erode and when loading useless steel and molten iron be bumped directly and erosive, should choose appliance to have the sex that fight broken bits intensity of strong, high temperature is high, fight the magnesian carbon brick with thermal shock good sex. Crucible hearth and other position photograph are lighter than eroding, can choose brick of common magnesium carbon. Should use a base when compound blowing technology, especially when the bottom blows the gas such as CO2, O2, mar more serious. Should choose it is good to fight oxidisability and heatproof shake sex, high temperature intensity is high, fight the brick of advanced magnesium carbon with broken bits strong sex. According to the characteristic that place of converter body of heater mars, the magnesian carbon brick that uses different official rank in feudal times cooperates build by laying bricks or stones to build, form balanced marred integrated lining.
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