Recombine (half recombine) magnesian chromic brick normally, people by electric frit magnesium chromium is arenaceous made magnesian chromic brick calls recombine magnesium chromic brick, and the product that will add magnesian chromium of partial report frit calls half recombine magnesian chromic brick.
Manage of half recombine magnesium chromic brick changes target
Half recombine magnesium chromic brick, press above the meaning of recombine magnesium chromic brick, want to make grain with synthesizing raw material artificially only, the magnesian chromic brick that makes for fine pink with chromic concentrate and magnesia should call half recombine magnesian chromic brick. And domestic general makes grain by chromic makings of electric frit magnesium, and the magnesian chromic brick that mixes fine pink to make with disaster cement material is fine pink or be with chromic concentrate pink and magnesia pink in all calls half recombine magnesian chromic brick. To distinguish, but will make grain with electric frit makings, in all the magnesian chromic brick that agglomeration magnesium chromic makings makes for fine pink calls frit bead in all agglomeration magnesium chromic brick.
This kind of firebrick also is to be in high temperature of 1700 ℃ above is firing, inside the brick also be between fireproof content grain give priority to with direct union. Its advantage is heatproof shake sex better, fight erode, fight erode pretty good also.
Magnesian chromic brick basically is used at metallurgical industry, if build open-hearth furnace the finery outside roof, electric stove roof, furnace and all sorts of nonferrous metal smelting furnace. The high temperature place of wall of furnace of freeboard power electric stove uses founding magnesium chromic brick, the finery outside furnace is tall the magnesian chromic brick that erodes an area to use synthetic makings to be made, nonferrous metal shows fast fusion heat tall the magnesian chromic brick that erodes an area to use makings of founding magnesium chromic brick, synthesis to be made. In addition, magnesian chromic brick still is used in cement rotary kiln firing the place such as the regenerator of belt and vitreous kiln.
Recombine (half recombine) the purity of magnesian chromic brick is tall, foreign matter (SiOzCaOFe203) content is little; Apparent pore rate is low, air permeability is small, strength of bulk density high high temperature is great, bulk stability is good; Microstructure feature is square magnesian stone, square magnesian Shi Gurong the direct contact of solid solution of body, chromic pointed spar, silicate photograph is shown isolated distributing.
Combine this one characteristic directly from photograph of brilliant of microstructure high temperature, set out, recombine, half recombine magnesium chromic brick is the direct union brick with direct couple higher rate. Use synthesis magnesian chromium is arenaceous, it is manufacturing recombine, half recombine the foundation of magnesian chromic brick. Synthetic magnesian chromium is arenaceous have agglomeration law and electric frit way two kinds.
Magnesian chromium of electric frit synthesis is arenaceous, use electric arc heat normally. Burn to prevent electrode not complete, cause Fe2O3, Cr2O3 reductive, should control tall voltage to grow electric arc operation, make electric arc is located in over frit fluid face, oxidize namely way cable frit. Synthesize modular bright and beautiful arenaceous, also can use agglomeration method, with high pure light MgO and chromic concentrate are mixed grind, control a ball (control base) , set upright kiln into high temperature oil (rotary kiln) calcination.
The grain bulk density with agglomeration synthesis magnesian arenaceous chromium is low, apparent pore rate is high, and when production lot hour cost disagreement calculates, when Fe2O3 and Cr2O3 content are high, ball base writtens guarantee easily in perpendicular kiln the ground, stick kiln.
Recombine (half recombine) magnesian chromic brick applies extensively in the place with metallurgy slag serious corrode, be like area of eye of wind of AOD of device of the fine outside furnace; Chamfer of bottom of room of RH furnace vacuum and macerate are in charge of; Line of VOD broken bits; Heavy coloured metallurgy (copper, chromic, stannum) area of converter a place with a draught; Show tower of fast furnace reaction, sedimentation basin; Zincous slag line, line of moxa Sa slag, line of broken bits of dilution electric stove reachs taphole; Belt of high temperature of furnace of kiln of alkalescent and fireproof material.
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