Nuo orchid amounts to furnace is a kind of level cylindrical bath fusion furnace. Body of heater is rotating reversely below the drive of gearing. One aspect of the matter of body of heater is entered makings, another end puts residue. A side of bottom of area of form sediment of the Duan Chen that put residue leaves matte is exported. Flue gas the mouth eduction from coping of canister of furnace of the end that put residue, a side of body of heater has a blast tuyere unit.
Nuo orchid amounts to the characteristic Canada that Nuo orchid amounts to furnace mining industry company began standard of copper of refine of Lan Da of Nuo of research and development 1964. Nuo orchid amounts to furnace to have the following characteristic: Stronger to the adaptability of raw material, can handle tall sulfur concentrate already, can handle low sulfur to contain cupreous material again, can handle powdery ore already, can handle an ore again. Do not have strict requirement to entering furnace stock, do not need to get the materials ready complexly process, raw material water content 8% can enter furnace directly, soot rate is low. (Adaptability of 3) auxiliary fuel is strong. Nuo orchid amounts to oxygen boosting fusion is one kind heats up fusion process oneself, rate of general and compensatory fuel has 2-3% only, can use coal, anxious pink, oil anxious wait for low cost fuel to serve as auxiliary fuel. (Thermal efficiency of 4) fusion process is tall, specific power consumption is low, productivity is big. Charging is cast in producing a course piece in bath surface, instantly in the fuse-element that be involved in churns strongly, produce strong reaction with the oxygen of inbreathe, ensure charging fuses quickly completely. Nuo orchid amounts to area of oven unit bath to handle concentrate ability, namely the bed can be led can amount to 20-30t/(m2.d) to produce high-grade copper, reduced the workload of blowing of converter of below one working procedure. The flue gas of generation is opposite less, flue gas measures successive stability, SO2 concentration is high, be helpful for sulfur reclaim, reduce environmental pollution. (50 lining do not have water-cooling establishment, heat loss due to radiation of body of heater is small, lining design is reasonable, the operation is apt, furnace life can amount to 400 days of above. (6) body of heater can rotate, the operation is agile, open furnace to stop furnace to master easily. Working requirement is good, but between mouth and smoke cover hard strict and sealed, leak from now on air is more, bring about cigarette volume to increase. (Content of the copper in 7) slag is high, close directly rate is low, furnace ripples needs mineral separation or electric stove dilution. The cupreous concentrate, material that contain copper, flux and oil are anxious as fuel, after classics burden mixes, cast makings machine to throw heat by high speed inside. Rich oxygen beats heat from blast tuyere inside, make bath is in mix condition, stock reacts in the to decoke inside furnace and slagging, generation contains copper to measure the matte of about 70% .
Nuo Lan Da furnace is strong to raw material adaptability, fusion efficiency is tall, concentration of the SO2 in flue gas is high, can satisfy the requirement that make acid. In the meantime, it is one kind heats up fusion technology oneself, specific power consumption is low, at present industry of copper of alive bound refine gets popularizing. Smeltery of our country big smelt metal is using this furnace to produce copper, productivity is big. Use high speed to cast makings machine to add the stock that contain copper and flux oven inside, spray through side wind mouth oxygen boosting air, the copper in maintaining bath and slaggy be in mix condition. The iron in concentrate and sulfur and oxygen produce oxidation exothermic reaction, supply the main quantity of heat that fusion place needs. Insufficient quantity of heat by the coal that deserves to have furnace charge or broken anxious complement, or complement by the coal of burner or oil. The copper of fused generation contains Cu55%~75% , cupreous mouth intermittence is put into cupreous bag, send in converter to undertake blowing. Slag from eduction of mouth of end wall broken bits, flow into electric stove of broken bits dilution to undertake slag dilution is handled directly, dilution furnace copper also sends converter blowing to reclaim copper. Or in putting slag broken bits to wrap, ore dressing plant of delay cold evacuation, single out broken bits concentrate, broken bits concentrate returns Nuo orchid to amount to furnace to reclaim the copper in broken bits. Reaction furnace flue gas passes water-cooling sealed smoke cover reclaims in the refrigeration in more than heat boiler more than heat, or carry flue gas of refrigeration of other and cooling means, purify evacuation through electric dust catcher next vitriolic factory makes acid.
Nuo orchid amounts to furnace refine copper to belong to fusion of oxygen boosting bath, dry, roast, fusion and blowing slagging craft are finished in the reaction furnace, fusion intensity is high, bath agitate is acuteness, go on wheels to assure craft, assure furnace life, to lining design and fireproof material raised very tall requirement. What Nuo orchid amounts to furnace is fragile place is end of blast tuyere area, mouth, feed in raw material burner and the furnace canister coping that put broken bits to carry burner correspondence, and wall of circle of fluctuation of line of precipitation area broken bits and broken bits end wall. Because air of many oxygen boosting enters fuse-element, chemical reaction is severe, erode serious, furnace temperature cold heat changes alternately, produce frequent thermal shock, and wind eye stabs the machinery that cause to erode, blast tuyere lining is in extremely harsh environment in, attaint rate is rapid. Accordingly, the life of firebrick of lining of blast tuyere area decided Nuo orchid amounts to the life of furnace. As a result of high temperature flue gas erode and machinery clears the concussion of slag, mouth also allows easy damage.
Precipitation area broken bits dismantles circular wall and broken bits end wall on the line, because be in high temperature area, and put residue, put copper to form wave motion of frequent broken bits layer, slaggy be eroded badly and of high temperature flue gas erode, also allow easy damage. Makings opening gives in what give makings end wall, because moisture and cold air are contained in charging, be out of shape to the lining all round makings mouth, give makings end burner and the roof that give makings end burner blaze correspondence circumferential lining basically is eroded directly by blaze, local thermic load is too big, a large number of cold air are invaded bring about thermal shock. Amount to the manufacturing condition of furnace according to Nuo orchid, ask fireproof material purity is tall, be able to bear or endure broken bits sex good, intensity is high, be able to bear or endure erode, wear-resisting, thermal stability is good. Does lining basically use two kinds of firebrick build by laying bricks or stones to build: before? Does Xu of of bluff of class of a legendary bird with poisonous feathers of appearance of show off of ㄔ of of of ankle of pacify of big pool whiz of crucian carp of ┢ of ankle of pacify of younger sister of bless of class extensive benzene?
The dosage of founding magnesium chromic brick occupies the 30%-40% of gross. As the improvement that furnace designs, a few fragile the damage level of place had very big rise, the quality of firebrick also had rise. With frit bead and magnesian chromium the brick replaces founding magnesium chromic brick now. Founding brick wear-resisting, anti-corrosive, machinery erodes, but be able to bear or endure urgent, cold, urgent, hot sex is poor, the price is high. Accordingly, besides mouth of a few matte, the other position that builds with build by laying bricks or stones of founding magnesium chromic brick originally has used frit bead and band of magnesian chromic brick, other position still is united in wedlock with magnesian chromic brick directly.
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