Cupreous milometer fusion is the smelt process with important copper of igneous law refine, traditional fusion method is undertake inside blast furnace, reverberator and electric stove, the main drawback of this kind of craft has two sides: It is to cannot make full use of the chemical reaction heat that the sulfide in charging oxidizes serves as energy, mineral fuel is measured or electric energy is used up big; 2 it is chroma of yielding SO2 flue gas low, cannot economic ground production is vitriolic, cause serious pollution to the environment. Accordingly, traditional fusion craft gradually by efficient, energy-saving with the aggrandizement fusion of low pollution new technology is replaced.
Nearly half century comes, many new aggrandizement fusion technology already popularized application on industry, but reduce two kinds big: One kind is to show fast fusion method, if elder brother general shows Otto,oxygen of fast fusion, Inco shows refine of Sa Rong of gush of fast fusion, vortical top-blown fusion, oxygen to wait; Another kind is bath fusion method, if Nuo orchid amounts to fusion of fusion, law of 3 water chestnut, Teniente converter fusion, bay Si Mai is special / Ai Sarong refine, Waniukefufa. The common characteristic of these methods is to use oxygen boosting technology, aggrandizement fusion process, make full use of quantity of heat of concentrate oxidation reaction, in be heated up oneself or be close to fusion undertakes below the condition that heats up oneself, yield so that reclaim effectively,Gao Nong spends SO2 flue gas sulfur, make product of vitriolic or other sulfur, eliminate pollution, protect an environment, managing the sources of energy, get good economic benefits.
Nuo orchid amounts to fusion craft
Nuo orchid amounts to fusion craft is stone of cupreous concentrate, quartz, fuel, return makings the scale that by metallurgy computation gives mixes, throw heat from furnace head through casting makings machine inside, the key point of an immersion wind that oxygen boosting air approachs feed in raw material to carry from furnace a side is roused, make fuse-element is maintained churn strongly condition. The oxygen in blast blowing area and bosomy person produces the sulfur in fuse-element and iron element strong oxidation reaction, the reaction of generation heats up the main source that heats up income for fusion. The share with skimpy heat energy reachs complement of furnace head burner by the fuel that adds a person along with charging.
Direction of length of this furnace edge is divided into blowing area (or call reaction the area) with precipitation area. The fuse-element of the cupreous milometer that arises in blowing area and slag sheds precipitation area to clarify depart. Cupreous milometer mouth is set in the precipitation area that is the same as a side with wind eye, Zuo grade (65%~73% or taller) cupreous milometer gives off a mouth to be put into cupreous milometer to wrap from this, pour person converter blowing again. Contain copper to the fusion slag of about 5% is given off from furnace end one end or ship with steamed stuffed bun to delay of delay awkward silence at an occasion cold, via the broken, mineral separation that grind float, reclaim the copper in broken bits and iron, or the direct electric stove that take a person undertakes broken bits dilution. Flue gas from eduction of reaction furnace mouth, classics water-cooling is sealed smoke cover, more than heat boiler (or sparge refrigeration flue) , report collects dust implement send toward vitriolic system to make acid.
Nuo orchid amounts to a reaction furnace is the furnace that form of cylinder of a horizontal can turn, be similar to the converter of milometer of groovy blowing copper, its structure is shown like graph 1-6 place. In 50mm or 70mm the steel casing liner of thick armor plate roll into has magnesian chromium simple advanced and fireproof stuff. Bearing of body of heater is on support roller, actuating device makes body of heater can be inside certain limits, retrorse roll. Furnace of whole furnace edge grows cent to be response division (or blowing area) with precipitation area. Furnish of response division a side eye of a wind. Mouth of feed in raw material (say to cast makings mouth again) set on furnace head end wall, set sealing gland plant, installation is returned to have burner on this wall. The mouth that precipitation area sets cupreous milometer to give off mouth, smoke evacuation to use and fuse-element fluid face measure a mouth. Broken bits mouth is opened go up in wall of furnace tail end, still carry burner of spare broken bits commonly here. Additional, in the wall outside furnace certain place is like the place such as mouth, slag tap to contain local and cooling establishment, all use exterior refrigeration sending wind commonly.
Nuo orchid amounts to fusion craft is classics of experience of company of mining industry of Canadian Nuo Lan Da 20 one's remaining years (1964 - 1989) heat up fusion technology one kind when development rises oneself. After be improved ceaselessly, this method already became the means of relatively advanced fusion of a kind of copper that provides competition ability quite. Outside dividing home, get popularizing on the world gradually. In October 1997, our country seductivelies dressed or made up greatly smeltery of nonferrous metal company introduces technology of digestive Nuo Lan Darong refine, build the Nuolandasheng that produces per year 100kt blister copper to produce a system.
Nuo orchid amounts to craft of furnace refine copper to belong to fusion of oxygen boosting bath, dry, roast, fusion and blowing slagging process are completed inside a reaction furnace, fusion strength is great, bath agitate is acuteness, to assure the process success, life that assures furnace, to lining design and fireproof material raised very tall requirement. What Nuo orchid amounts to furnace is fragile place is blast tuyere area, mouth, feed in raw material carries burner and the furnace canister coping that put broken bits to carry burner correspondence and line of precipitation area broken bits to go up, next circular walls and broken bits end wall. Blast tuyere area enters person fuse-element as a result of much oxygen boosting air, drastically agitate and splash, chemical reaction is severe, erode serious, furnace temperature cold heat changes alternately and produce frequent thermal shock, and the machine that disclose wind eye creates erodes, in making blast tuyere lining is in very harsh environment, attaint rate is rapidder, so the life of lining of blast tuyere area decided Nuo orchid amounts to the life of furnace.
Because blast tuyere gets high temperature flue gas erode, and machinery clears when slag bump, : of easier also attaint? It is difficult that summary incomplete of rare ⑾ of Gu of of the 3 that love La kisses glue to carry be apt to of abb of of huge rock of ⒎ of the other drag of of of Lv of shaming Nao of υ of Gua of take along sth to sb of of raise sword on the back to pound of Ji of of of ǘ of Cui of baric head show She to pledge egg of mellow case Nao the Tang Dynasty ?
Amount to the manufacturing condition of furnace according to Nuo orchid, ask fireproof material purity is tall, the sex that fight broken bits good, strength is great, be able to bear or endure erode, stability of wear-resisting caustic, thermal shock is good. Lining basically uses build by laying bricks or stones of two kinds of bricks to build previously: It is founding magnesium chromic brick, position of cutting of Yu Yi of build by laying bricks or stones; Place build by laying bricks or stones builds the others to combine magnesian chromic brick directly. The dosage of founding magnesium chromic brick occupies the 30%~40% of gross. As the improvement that furnace designs, some are fragile the damage level of place has improvement greatly, and the quality of firebrick rises, already used frit bead recombine now magnesian chromic brick replaced founding magnesium chromic brick. Founding brick wear-resisting, be able to bear or endure erode and machinery erodes, but be able to bear or endure urgent cold urgent hot sex is poor, the price is high. Accordingly, outside using a few except matte mouth now, other and original the position that with founding magnesium chromic brick build by laying bricks or stones builds already all converted frit bead recombine is magnesian chromic brick, the others place still uses build by laying bricks or stones of chromic brick of direct union magnesium to build.
Silver law fusion
Law of silver refine copper is new technology of a kind of when 70 time invent 20 centuries of our country fusion that build milometer, because of main invention the unit is company of silver nonferrous metal and name its for law of silver refine copper.
Hydrous cent 8% vulcanization copper concentrate of the left and right sides deserve to wait in order to return stone of makings, quartz and limestone, by disc feeder control gives makings amount, classics is slow fast in adding a person to silver furnace bath continuously to makings leather belt and mouth of feed in raw material of fusion area roof. The charging that falls into bath distributes instantly enter place of oxygen boosting air at be being roused by blast tuyere intense in churned fuse-element, finish oxidation reaction and slagging reaction quickly. Containing O2 to be the blast of 21%~50% is by compress pure oxygen of air and industry (contain O2 95%~99%) to mix and become. Oxygen boosting air rouses a person through a place with a draught of fusion area side wall the bath of 115 ℃ .
Fusion area generates the mixture fuse-element of cupreous milometer and slag, passageway of classics partition bottom enters person precipitation area, undertake the depart of slag and matte, yield cupreous milometer and slag. Cupreous milometer puts cupreous mouth by siphon discontinuous give off for converter blowing, slag is abandoned by eduction of cuttings pick-up mouth go or handle via dilution.
Flue gas of high temperature of tall SO2 pH indicator rises flue eduction continuously by fusion area rear, collect dust via more than heat boiler, eddy implement, after electric dust catcher, send toward vitriolic workshop to produce industry via smoke evacuation machine again vitriolic. Area of precipitation of furnace of double room silver yields contain the flue gas with very few SO2 first classics water-cooling flue, repass radiate heat exchanger, heat exchanger tubal form, send toward chimney platoon sky by smoke evacuation machine after.
Law of silver refine copper is a feature with dynamic fusion, namely in order to compress air or fuse-element of inbreathe of oxygen boosting air in, intense churn fuse-element. Another of law of silver refine copper main feature is to use partition of partition general bath, the broken bits that realized dynamic fusion and static state inside a furnace and matte depart process. Compare with photograph of furnace of other bath fusion, the noumenon structure of silver furnace and equipment of form a complete set all are compared simple, process is stable, be mastered by operation personnel easily.
The engineering technology of law of silver refine copper already reached world advanced level, but current equipment still lags behind quite, need to be perfected further, rise. Silver furnace is if bath undertakes building the side-blown stationary hearth of milometer fusion,one kind drops the furnace charge such as vulcanization copper concentrate directly, it is a fixed rectangular furnace.
The bath inside furnace has a partition, furnace cent is fusion area, precipitation area two parts, those who realized dynamic inside a furnace fusion and static state is slaggy depart with matte. The texture that presses space of the chamber of a stove or furnace differs to be able to be divided again for double room furnace model with cell furnace model. Structure of silver furnace main body by furnace base, hearth, boiler setting, roof, partition, inside the partial composition such as siphon pool and steel structure of body of heater. On body of heater many place installed cupreous water to cover, include to air water is covered, water of broken bits line is covered, furnace arch water is covered, side wall establishs water to cover, the water that press arch is covered, saliva of feed in raw material is covered etc. Mouth of broken bits mouth, the milometer that put copper, return mouth of converter broken bits, burner aperture to waited to all install cupreous water to cover. Cupreous water covers refrigeration the main component that already made structure of silver furnace body of heater.
When silver furnace is working, the temperature inside furnace is in 1100~1350 ℃ , the air that blows from blast tuyere gush or oxygen boosting speed are as high as 300m/s left and right sides, bath of intense inside furnace agitate, form state of boiling, splash. Accordingly, the high temperature intensity that data of silver furnace liner asks it is better to have and fight aggressivity to wait, basically use magnesium to pledge with magnalium character fireproof material.
Of fireproof material fragile place is: The position of broken bits line of the boiler setting near arch of furnace of area of place of fusion area a place with a draught, fusion and mid partition and precipitation area. Blast tuyere area churns as a result of fuse-element intense, chemical reaction is centered, temperature is high, and bear the mechanical concussion when disclose a place with a draught, the working requirement of fireproof material is so abominable, it is the crucial position that affects furnace to maintain cycle, use build by laying bricks or stones of magnesia brick of electric founding chromic magnesia brick or recombine chromium to build. Furnace vault uses magnalium brick, boiler setting liner uses magnesia brick build by laying bricks or stones to build, cupreous water is used to cover refrigeration in position of broken bits line. The partition among furnace uses magnalium brick and magnesia brick build by laying bricks or stones to build, use cooling water to cover protection. Hearth of silver fusion furnace is not wide (be less than 4m) , reason roof is vault, build with magnalium brick build by laying bricks or stones, hearth is turn over arch, build with magnesia brick build by laying bricks or stones.
Flourish Cheng Naicai regards manufacturer of professional tall aluminous brick as the home, pay attention to the job after the carry out before the client's carry out, let an user feel choice Rong Cheng chooses to be at ease, think user place thinks, urgent user place is urgent, solution user place is bad, to convoy escorts the Emperor on the way that the user develops in advancement.
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