Also have and build by laying bricks or stones of magnesian simple fireproof stuff builds hearth working face, of magnesia brick fireproof degree taller also (1710 ℃ of 1690 ～ ) , apply to stannic smelt temperature (1500 ℃ are the following) , in reducing atmosphere can better land is counteractive and alkalescent of flux erode, and magnesian simple fireproof stuff is right of tall iron stock fight corrode ability stronger than carbolic brick. Price of besides magnesia brick is the 1/4 of carbolic brick about, accordingly, some factories use magnesia brick build by laying bricks or stones to build entirely. But magnesian simple fireproof stuff fights thermal shock function poorer, right the furnace that when leaving when the operation, stops, lining allows easy damage. Float to prevent brick of electric stove hearth, have use hearth of agglomeration of magnesia whole tamp.
(2) boiler setting
Total ply of boiler setting of refine tin hot plate is 400 ～ 450mm, under line of bath broken bits inside the wall uses chunk graphitization carbolic brick build by laying bricks or stones is built, line is mixed with saggar brick between carbolic brick and steel crust asbestine board is adiabatic, thick 200mm of carbolic brick wall, standing by hearth place to set to put stannic mouth. The boiler setting under broken bits line all is built with saggar brick build by laying bricks or stones, standing by upper part of broken bits line to set working door, so that take the electrode of an attaint. Decide according to comparing an experiment, city aluminous brick fights aggressivity of charging, mine dust can otherer brick is good, so the boiler setting of bath line above had better use tall aluminous brick.
(3) roof
Roof uses clay to pledge fireproof material build by laying bricks or stones builds ball arch furnace top entirely, ply 230mm. Roof is opened have Konghe of 3 3 electrode aperture, feed in raw material a steam vent.
Because bricky body absorbs mine dust,the attaint of roof is (namely all sorts of oxide) , below high temperature and long action, make bricky body generation is eroded, it is better that tall aluminous brick does mine dust aggressivity, so roof had better use build by laying bricks or stones of tall aluminous brick to build.
Dilution electric stove reachs the bed before electric heat
Dilution electric stove is a kind of mine pyroelectricity furnace, it is the slag reconditioning equipment of the generation when fusion copper milometer, if show fast furnace slag, the quantity that contain copper is between 4 ％ of 2 ％ ～ , short of abandons the demand of broken bits, join its dilution vulcanizing agent, reducer, flux is added inside electric stove, the major copper that makes broken bits medium generates cupreous milometer and reclaim, the slag after dilution contains copper can abandon under 0.5 ％ . Furnace of dilution electric stove as similar as fusion electric stove, just all along the capacity is lesser, do not exceed 10000kV·A normally. Accordingly, mix only commonly 3 electrode. Requirement of the work inside furnace is more abominable than fusion electric stove, entering the stock inside furnace is slag. Broken bits line takes liner to be in high temperature melt for a long time slag and a few add those who add solid stock to erode below attrition, of requirement liner material fight high temperature, fight broken bits, fight erode function is very good. Current, the direct union brick that uses magnesian chromium to pledge uses brick of magnesian chromic qualitative electroform even, at the same time of bricklaying body exterior set cooling water to cover even or gush drenchs try to cool, in order to improve the life of boiler setting. Roof is used more fireproof note makings. But plastic wait for indeterminate form fireproof material is pounded build. Hearth is become with magnesia brick build by laying bricks or stones commonly turn over arch, bottom has clay brick and pound build makings, whole hearth built on stilts has cooling establishment.
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