The closed granulation system of liquid copper matte regulus
Technical field
The present invention relates to non-ferrous metal metallurgy system, particularly relate to the closed granulation system of liquid copper matte regulus.
Background technology
Copper sulfide concentrate is smelted and is generally divided into melting, blowing, pyrogenic process blowing and electrorefining 4 main programs.The object of melting is to make sulfonium (being commonly called as matte), namely under high temperature and oxidizing atmosphere, copper sulfide concentrate is fused into MeS eutectic (CuS-FeS), by the copper segregation in concentrate in matte, and the oxide compound of most of iron and the flux slag making added.The process of blowing is by Fe and S in oxidation removing matte and part detrimental impurity, thus matte is become blister copper.The process of blowing is very important, because which determine the efficiency of copper in whole smelting process.
The blowing mode of copper matte regulus has a lot, as pierce smith converter blowing, flash blowing, the blowing of oxygen top blown stove and oxygen bottom blowing continuous converting etc.Wherein flash blowing is fast owing to having speed of response, and processing power is large, and smelting process is without SO
2dissipation, be conducive to improving and smelt vehicle frame environment and the impact reduced surrounding environment, the SO of high density
2relieving haperacidity can also be reclaimed, thus investment and management expense of saving smoke processing system etc. many merits is accepted by market gradually.Flash blowing only has requirement to copper matte regulus, and namely copper matte regulus is the particle of about 3 ~ 5mm.And the copper matte regulus particle of this size will be obtained, traditional method is imported in water by liquid copper matte regulus to carry out shrend, then obtain through ball milling.There is a lot of problem in copper matte regulus shrend: 1, liquid copper matte regulus temperature is high, reaches 1150 ~ 1250 DEG C, and drop in water and can set off an explosion, operation is absolutely unsafe; 2, adopt water quenching technology to obtain particle to need through twice broken and twice baking procedure, technical process is long, and energy consumption is high; 3, the SO of copper matte regulus shrend generation
2relieving haperacidity cannot be collected.
Notification number is that the Chinese patent literature of CN101386917B discloses a kind of Noiseless environment friendly matte granulation technology; it dispels as tiny drop with high pressure gas by the matte stream of molten state; and make drop be cooled to half melt or solid-state copper particle aloft; finally fall into pond to cool further, then transport after dewatering process.But part copper particle cannot be cooled to design temperature aloft, still can set off an explosion after falling into pond, produce noise and generate a large amount of SO
2, not only thoroughly cannot solve safety problem, still need to carry out drying and dewatering program, and a large amount of SO
2easily cause equipment corrosion, increase production maintenance cost.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides the closed granulation system that a kind of safety coefficient is high, pollute little, that long service life, production efficiency are high liquid copper matte regulus.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of closed granulation system of liquid copper matte regulus, comprise containment housing and the wind be installed in described containment housing is quenched granulating device, spray equipment, particle collection device and conveyer, one end of containment housing is located at by described wind granulating device of quenching, the quench feed end of granulating device of wind extends to outside containment housing, containment housing top is located at by described spray equipment, described conveyer is located at bottom containment housing, the output terminal of conveyer extends to outside containment housing, described particle collection device is the V-shaped groove shape of bottom opening, the bottom opening of described particle collection device is positioned at above conveyer.
Described particle collection device is made up of the cooling plate be in tilted layout, and the bottom surface of described cooling plate is provided with the radiating pipe of close arrangement.
The upper surface of described cooling plate is provided with the scraper plate for cleaning bonding particle.
Described containment housing top is equiped with smoke gas collecting apparatus.
Described smoke gas collecting apparatus comprises smoke-uptake, smoke exhaust fan and fly-ash separator, and the import of described smoke-uptake communicates with containment housing inside, and described smoke exhaust fan and fly-ash separator are located in smoke-uptake, and described fly-ash separator is between the import and smoke exhaust fan of smoke-uptake.
Described containment housing is provided with the first suction fan for hermetic seal in the quench feed end place of granulating device of wind, and described containment housing is provided with the second suction fan for hermetic seal in the output of conveyer.
Described wind granulating device of quenching comprises copper matte regulus blanking device and spraying high-pressure gas device; the opening for feed of described copper matte regulus blanking device is positioned at outside containment housing; the discharge port of copper matte regulus blanking device is positioned at containment housing, and the jet orifice of described spraying high-pressure gas device is positioned at below the discharge port of copper matte regulus blanking device.
Described spray equipment is made up of multiple showers of external pressure water source, and described shower is provided with multiple fog-spray nozzle.
Described conveyer is scraper conveyor.
Described containment housing comprises skeleton and steel plate, and described Interal fixation is on skeleton and enclose casing shape, and described steel plate is provided with more than one deck.
Compared with prior art, the invention has the advantages that:
The closed granulation system of liquid copper matte regulus of the present invention, the process of liquid copper matte regulus granulation is carried out in containment housing, can avoid SO
2loss cause acid mist pollution, be cooled to solid-state aloft through the wind granulated copper matte regulus that granulating device dispels of quenching, drop on particle collection device down afterwards, and launch between the two side of the V-shaped groove of particle collection device, finally along the sidewall landing of V-shaped groove, and drop on conveyer from bottom opening, containment housing is sent again by conveyer, when solid-state copper matte regulus particle launches between the two side of V-shaped groove, continue on the one hand to carry out heat exchange with the air in containment housing, it all can carry out a heat trnasfer with the sidewall contact of V-shaped groove each time on the other hand, solid-state copper matte regulus particle is lowered the temperature further, in the process of the sidewall landing along V-shaped groove, solid-state copper matte regulus particle is cooled fully, compared to the structure that existing millpond cools, the present invention can avoid the copper matte regulus particle not obtaining fully cooling aloft directly fall into pond and set off an explosion, produce noise, improve security, reduce noise pollution, further, a large amount of SO of centralized production is avoided
2, prevent equipment to be subject to strong corrosion, extension device work-ing life, in addition, drying and dewatering program can be saved, enhance productivity.
Accompanying drawing explanation
Fig. 1 is main sectional structure schematic diagram of the present invention.
Fig. 2 is the A-A sectional structure schematic diagram of Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram at B place in Fig. 2.
Fig. 4 is plan structure schematic diagram of the present invention.
In figure, each label represents:
1, wind is quenched granulating device; 2, spray equipment; 3, particle collection device; 4, conveyer; 5, containment housing; 6, smoke gas collecting apparatus; 7, the first suction fan; 8, the second suction fan; 11, copper matte regulus blanking device; 12, spraying high-pressure gas device; 21, shower; 22, fog-spray nozzle; 31, cooling plate; 32, radiating pipe; 33, scraper plate; 51, skeleton; 52, steel plate; 61, smoke-uptake; 62, smoke exhaust fan; 63, fly-ash separator.
Embodiment
Fig. 1 to Fig. 4 shows the closed granulation system embodiment of a kind of liquid copper matte regulus of the present invention, this closed granulation system comprises containment housing 5 and the wind be installed in containment housing 5 and to quench granulating device 1, spray equipment 2, particle collection device 3 and conveyer 4, one end of containment housing 5 is located at by wind granulating device 1 of quenching, the quench feed end of granulating device 1 of wind extends to outside containment housing 5, containment housing 5 top is located at by spray equipment 2, conveyer 4 is located at bottom containment housing 5, the output terminal of conveyer 4 extends to outside containment housing 5, the V-shaped groove shape of particle collection device 3 in bottom opening, the bottom opening of particle collection device 3 is positioned at above conveyer 4.The process of liquid copper matte regulus granulation is carried out in containment housing 5, can avoid SO
2loss cause acid mist pollution, formed solid-state by the dual-cooled effect of air and spraying aloft through the wind granulated copper matte regulus that granulating device 1 dispels of quenching, drop on down afterwards on particle collection device 3, and launch between the two side of the V-shaped groove of particle collection device 3, finally along the sidewall landing of V-shaped groove, and drop on conveyer 4 from bottom opening, containment housing 5 is sent again by conveyer 4, when solid-state copper matte regulus particle launches between the two side of V-shaped groove, continue on the one hand to carry out heat exchange with the air in containment housing 5, it all can carry out a heat trnasfer with the sidewall contact of V-shaped groove each time on the other hand, solid-state copper matte regulus particle is lowered the temperature further, in the process of the sidewall landing along V-shaped groove, solid-state copper matte regulus particle is cooled fully, compared to the structure that existing millpond cools, the present invention can avoid the copper matte regulus particle not obtaining fully cooling aloft directly fall into pond and set off an explosion, produce noise, improve security, reduce noise pollution, further, a large amount of SO of centralized production is avoided
2, prevent equipment to be subject to strong corrosion, extension device work-ing life, in addition, drying and dewatering program can be saved, simplify Production Flow Chart, improve production efficiency.
In the present embodiment, particle collection device 3 and conveyer 4 are equipped with two groups, two groups of particle collection devices 3 and conveyer 4 are arranged side by side, also can set up more particle collection device 3 and conveyer 4 in other embodiments, also can set up more wind to quench granulating device 1, to improve the working efficiency of system; Also at the output terminal arrangements lifting machine of conveyer 4, to store copper matte regulus and to transport, level of automation can be improved, reduces labor strength.
In the present embodiment, particle collection device 3 is made up of the cooling plate 31 be in tilted layout, cooling plate 31 is spliced to form the V-shaped groove shape of bottom opening, the radiating pipe 32 of close arrangement is provided with at the bottom surface of cooling plate 31, water coolant metal tube selected by the radiating pipe 32 of the present embodiment, and the heat of cooling plate 31 can be taken away by fast, makes cooling plate 31 remain on low-temperature condition, to improve cooling performance, prevent particles stick on cooling plate 31; The upper surface of cooling plate 31 is provided with the scraper plate 33 for cleaning bonding particle, in the debug process of native system, the copper matte regulus particle that may have a small amount of semi-melting state directly drops on cooling plate 31, it may be bonded on cooling plate 31, now make to order about scraper plate 33 once to clean copper matte regulus particle bonding on cooling plate 31 along the upper surface to-and-fro movement of cooling plate 31, the upper surface of cooling plate 31 is made to keep clean, the upper surface of cooling plate 31 is avoided to form the phenomenon of dross, to ensure its cooling performance.Scraper conveyor selected by the conveyer 4 of the present embodiment, and the conveying belt of scraper conveyor is anti-Acids eat metals band, and long service life, can reduce cost of equipment maintenance.
In the present embodiment; spray equipment 2 is made up of multiple showers 21 of external pressure water source; shower 21 is provided with multiple fog-spray nozzle 22; the shower 21 of the present embodiment is provided with 9 rows; each row's shower 21 is provided with 15 fog-spray nozzles 22; the vaporific cooling water smoke sprayed through fog-spray nozzle 22 can be lowered the temperature further to the copper matte regulus particle flown; make copper matte regulus particles cured; prevent copper matte regulus particle secondary bonding; ensure that granulation effect and particle uniformity; also can reduce the airborne dust in containment housing 5 simultaneously, reduce the temperature in containment housing 5.
In the present embodiment, containment housing 5 top is equiped with smoke gas collecting apparatus 6, this smoke gas collecting apparatus 6 comprises smoke-uptake 61, smoke exhaust fan 62 and fly-ash separator 63, the import of smoke-uptake 61 communicates with containment housing 5 inside, smoke exhaust fan 62 and fly-ash separator 63 are located in smoke-uptake 61, fly-ash separator 63 between the import and smoke exhaust fan 62 of smoke-uptake 61, this smoke gas collecting apparatus 6 can collect copper matte regulus wind quench produce SO
2gas and the water smoke sprayed by fog-spray nozzle 22, smoke-uptake 61 accesses acid plant can prepare sulfuric acid, realizes changing harmful to treasure, not only protects environment, also for enterprise creates benefit; Sack cleaner selected by fly-ash separator 63, and it can reduce the content of flying dust in flue gas, is conducive to relieving haperacidity.
In the present embodiment; wind granulating device 1 of quenching comprises copper matte regulus blanking device 11 and spraying high-pressure gas device 12; the opening for feed of copper matte regulus blanking device 11 is positioned at outside containment housing 5; the discharge port of copper matte regulus blanking device 11 is positioned at containment housing 5; the jet orifice of spraying high-pressure gas device 12 is positioned at below the discharge port of copper matte regulus blanking device 11; the discharge port of copper matte regulus blanking device 11 and the jet orifice of spraying high-pressure gas device 12 are all positioned at containment housing 5, copper matte regulus wind quench produce SO
2gas is all in containment housing 5.
In the present embodiment, containment housing 5 comprises skeleton 51 and steel plate 52, and skeleton 51 is steel structure framework, also can adopt concrete skeleton in other embodiments, steel plate 52 to be fixed on skeleton 51 and to enclose casing shape, steel plate 52 is provided with more than one deck, and the steel plate 52 of the present embodiment is provided with three layers, and internal layer is acid-proof corrosion layer, skin is stainless steel layer, middle layer is that ordinary steel sheet material layers plays support reinforcing effect, and steel plate 52 adopts the design of three layers that the stopping property of containment housing 5 can not only be made stronger, prevents SO
2dissipation outward, and make whole containment housing 5 more firm, avoid long-time use and produce viscous deformation.Containment housing 5 is provided with the first suction fan 7 for hermetic seal in the quench feed end place of granulating device 1 of wind, can avoid the SO produced when granulating device 1 feeds in raw material that aweather quenches
2dissipation, reduce further SO
2pollution; Containment housing 5 is provided with the second suction fan 8 for hermetic seal, with SO when copper matte regulus particle can be avoided to export in the output of conveyer 4
2dissipation, reduce further SO
2pollution.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.Should propose, for those skilled in the art, improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.