CN202169274U - Smelting furnace for incinerating waste circuit boards at high temperature and recovering copper - Google Patents
Smelting furnace for incinerating waste circuit boards at high temperature and recovering copper Download PDFInfo
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- CN202169274U CN202169274U CN2011202452611U CN201120245261U CN202169274U CN 202169274 U CN202169274 U CN 202169274U CN 2011202452611 U CN2011202452611 U CN 2011202452611U CN 201120245261 U CN201120245261 U CN 201120245261U CN 202169274 U CN202169274 U CN 202169274U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to the field of waste disposal and provides a smelting furnace for incinerating waste circuit boards at high temperature and recovering copper. The smelting furnace has a high disposal capacity, is environment-friendly and economic, increases the metal recovery rate and has a strong adaptability to waste. The smelting furnace comprises a vertically-arranged combustion tower, a horizontally-arranged smelting tank and a vertically-arranged sterilization tower, wherein a first smelting tank inlet is formed on the top wall of one end of the smelting tank, a second smelting tank inlet is formed on the end wall of the one end of the smelting tank, a smelting tank outlet is formed on the top wall of the other end of the smelting tank, a combustion tower inlet is formed on the top wall of the combustion tower, a combustion tower outlet is formed on the bottom wall of the combustion tower, a sterilization tower inlet is formed on the bottom wall of the sterilization tower, a smoke exhaust hole is formed at the top end of the sterilization tower, a first swirl burner is arranged inside the combustion tower inlet, the combustion tower outlet is oppositely connected with the first smelting tank inlet, the smelting tank outlet is oppositely connected with the sterilization tower inlet, and at least two air inlets are formed on the side wall of the sterilization tower. The utility model solves the problems that the stability of working conditions during waste incineration is poor and the discharges of toxic gases in tail gases exceed the standards.
Description
Technical field
The utility model relates to the offal treatment field, relates in particular to a kind of waste printed circuit board high temperature incineration and reclaimed copper smelting furnace.
Background technology
Waste printed circuit board is different from general house refuse; Waste printed circuit board is made up of glass fiber-reinforced resin, plastics and multiple metal; Also contain poisonous brominated flame retardant; Generally do not contain the copper more than 20% with the element waste printed circuit board, the wiring board of band element generally contains copper 25%, iron 5%, aluminium 5%, nickel 0.5%, noble metal 40-80 gram/ton, overbalances 20,000 yuan/ton.At present, it is burning disposal that waste printed circuit board is disposed common methods, organic components high temperature incineration wherein, and Metal Melting is cast mixed-metal ingot.Legacy equipment can discharge a large amount of stimulation stenches and the poisonous fume that contains a large amount of Polychlorinated biphenyls/bioxin.Waste printed circuit board is disposed in economic environmental protection becomes global environmental protection focus.Research and development high-efficient energy-saving environment friendly economy, high, the adaptable waste printed circuit board disposal technology of the waste material equipment of metal recovery rate; Meet national circular economy policy and " 12 " national economic development requirement, can promote sustainable economic development and " amphitypy " social construction.
Though the blast furnace burning method technology of present domestic extensive use is simple, investment is little, because of waste material can be at upper furnace low temperature pyrolyzer and can not completing combustion, so can produce a large amount of black smokes, dust He toxic gases such as bioxin furans.
Document (Zhang Shaokun. rotary kiln is handled the engineering design [J] of hazardous waste. metallurgical equipment; 2010; (2): 58-62) reported that rotary kiln handles medical danger wastes, auxiliary device is complicated, investment is big, be prone to coking, fault rate is high, high, the not high deficiency of disposal efficiency of energy consumption but it exists.
Abroad reported the many stoves of Ka Er, top soak and blow, gasify-waste printed circuit board is handled in fusion, high temperature distillation, plasma high temperature pyrolytic cracking (HTP), but because of equipment investment is big, operating cost is high, therefore only rests on the laboratory research stage.
At Chinese patent number is ZL200920118074; Name is called in the patent documentation of the smelting apparatus of waste printed circuit board " handle " and discloses a kind of device of handling waste printed circuit board; This device comprises vertical incinerator and the Roarykiln that is docked at vertical incinerator lower end; Vertical incinerator is provided with working chamber and secondary combustion chamber, and internal combustion, powdery wiring board burn in rotary furnace block wiring board in the working chamber, and gas burns in that second-time burning is indoor once more.At Chinese patent number is ZL2008100613467, and name is called in the patent documentation of " flash smelting and the electric dilution technology of handling waste printed circuit board " has reported a kind of method of handling waste printed circuit board.Above-mentioned two pieces of modes that patent documentation adopted all be through vertical incinerator and horizontal rotary furnace organically combine, based on the incineration disposal stove of converter principle; The working chamber will accomplish waste combustion and copper scrap melting two functions, fuzzy operating mode poor stability, the operating mode regulation and control difficulty of causing of burning and melting function division; And the driven by power complex equipments of converter; Exhaust emissions phenomenon not up to standard appears in reasons such as to contact mixed combustion insufficient because of waste material and oxidant during big disposal amount, and harmful components and oxidant mixed oxidization be insufficient in the flue gas, does not fit into the suitability for industrialized production use.
The utility model content
The utility model provides that a kind of disposing capacity is big, environmental protection and economy, metal recovery rate are high, the adaptable waste printed circuit board high temperature incineration of waste material and reclaimed copper smelting furnace, and the burning that has solved traditional converter is discharged the problem that exceeds standard with the insufficient toxic gas of tail gas that causes of fuzzy operating mode poor stability, the tail gas oxidation that is caused of melting function division.
Above technical problem solves through following technical proposal: a kind of waste printed circuit board high temperature incineration and reclaimed copper smelting furnace; The sterilization tower of the hollow that comprises the smelting pond of the combustion tower of the hollow of vertical setting, horizontally disposed hollow and vertically be provided with; The roof of said smelting pond one end is provided with the first smelting Chi Jinkong, end wall is provided with second and smelts Chi Jinkong; The roof of the other end in said smelting pond is provided with the smelting pond and portals; The roof of said combustion tower is provided with that combustion tower enters the hole, diapire is provided with combustion tower and portals; The diapire of said sterilization tower is provided with that the sterilization tower enters the hole, the top is provided with exhaust smoke hole, and said combustion tower advances first turbulent burner is installed in the hole, and said combustion tower portals and advances hole butt joint with the said first smelting pond; Portal and advance the hole butt joint with said sterilization tower in said smelting pond, the sidewall of said sterilization tower is provided with at least two fresh air inlets.Discarded object powder or particle leave under the turbulent burner spiral under the effect of a small amount of compressed air and are advanced into combustion tower, get into behind the combustion tower the very fast combustion air of sending into first turbulent burner and fully mix and burn.After discarded object gets into combustion tower,,, accomplished flue gas whole combustion reactions when leaving combustion tower at combustion tower the inside limit, whereabouts destructive distillation pyrolysis and combustion.Under the burning exothermic effects, the metal in the discarded object is heated to molten condition rapidly and portals and first smelt Chi Jinkong and drop into the high temperature solution in melting pond from combustion tower.Insulation is advanced into the gas-phase space in the melting pond before the hole spiral is advanced in the warp second smelting pond under the effect of a small amount of compressed air with fuel powder such as waste printed circuit board powder or particle or coal dust and air, and burns in the gas-phase space in the melting pond.Under the burning exothermic effects, organic waste materials or coal dust are by heating flame, metal are heated to molten condition and fall into melting pond high temperature solution rapidly.When insulation is burnt with the waste printed circuit board material in the gas-phase space in melting pond the toxic gas that does not burn that flows out from combustion tower is burnt away.The residue carbon burning helps to keep melting pond gas-phase space temperature on the face of pond, melting pond.The new high-temperature metal melt that forms in high-temperature metal melt that combustion tower falls and melting pond is deposited on bottom, melting pond, under the flue gas effect, flows to sterilization tower place end very lentamente.High-temperature slag density is less than copper liquid density, and the length that adds upper edge air current flow direction and be the melting pond is controlled the enough melt flows time that guarantees so that to sterilization tower place during end high-temperature slag and copper fluid power ideally layering separate.Portal and the tower of sterilizing advances in the hole entering sterilization tower by the pond through smelting for high-temperature flue gas in the smelting pond; Combustion air gets in the sterilization tower from fresh air inlet; Under suction force and the effect of combustion air suction force that exhaust smoke hole negative pressure, sterilization tower height degree form; The flue gas spiral rises to burn and form tail gas and discharges the sterilization tower through exhaust smoke hole, and combustion air can make flue gas in the sterilization tower, further fully burn, become standard compliant tail gas and discharge from exhaust smoke hole.
As preferably, the said second smelting pond is advanced second turbulent burner is installed in the hole.Melting pond liquid level below combustion tower the molten mass stockpile occurs and amasss when burning, and starts second turbulent burner, impels the windrow short time to burn, and prevents heap carbon phenomenon.
As preferably, said air inlet is positioned at the bottom of said sterilization tower.The time that the flue gas carried secretly in the gas that from smelt the pond, enters in the sterilization tower is burnt is long, and it is abundant more in addition to burn.
As preferably, the axis of said fresh air inlet is that the cylindrical side of center line is tangent with the center line with the inner chamber of said sterilization tower, and the direction of rotation of the swirling eddy that the air-flow in the various inlet hole gets into said sterilization tower is produced in the sterilization tower is identical.This kind design gets into combustion air in the sterilization tower for tangentially getting into from fresh air inlet, makes through smelting the pond to enter high-temperature flue gas rotation in the sterilization tower and rise and burn, and has prolonged not burn the time of staying of flue gas in hot environment, be fully burned.
As preferably, the corner dimension between the said fresh air inlet same level face is A, 0 ° of < A≤30 °.Can guarantee that the high-temperature gas in the combustion air that fresh air inlet gets into can guide the sterilization tower upwards flows, high-temperature gas can not leave the sterilization tower again too fastly.
As preferably, the height of said fresh air inlet equates.Can the phase mutual interference between the combustion air that different fresh air inlets get into.
As preferably, identical with the air-flow eddy flow direction that produces by described air inlet air intake along the air-flow direction of rotation of the air-flow direction of rotation of described first turbulent burner of air current flow direction, described second turbulent burner.
As preferably, said sterilization tower exhaust smoke hole is positioned at the sidewall of said sterilization tower.Outside cold air can not be sunk and influenced effluxing of the interior gas of sterilization tower, and exhaust is unobstructed.
As preferably, the roof of said sterilization tower is provided with urgent exhaust smoke hole.When abnormal combustion appears in the utility model inside, open urgent exhaust smoke hole and carry out exhaust, make the inner normal combustion state that recovers, but simultaneously urgent exhaust smoke hole double as manhole is convenient when the utility model inside is overhauled.
As preferably; The bottom surface of the inner chamber in said smelting pond is for to domes, the end face of lower recess being the span of the span of the domes that raise up, end face more than or equal to the bottom surface; End is provided with big footpath section, converging transition and path section to said sterilization tower place end to the inner chamber in said smelting pond successively from said combustion tower place, and the bottom surface of the inner chamber in said smelting pond holds said sterilization tower place end downward-sloping from said combustion tower place."The large-diameter section" refers to the cross sectional area of the lumen of the smelting cell the largest part, "path segments" refers to the cross sectional area of the lumen of the smelting cell the smallest of "converging section" refers to the inner smelting pool connect a large diameter cavity and the small diameter section and the section of the cross-sectional area gradually becomes smaller parts, curved design with three sections constituted by cavity design to enhance the heat radiation melting pool, pool heat required for melting saves extra fuel, so that self-heating operation.The bottom surface be designed to tilt below, guarantee that slag and copper fluid power flow according to direction initialization.
As preferably, the utility model comprises sterilization tower bracing frame and combustion tower bracing frame, and said sterilization tower supports on the ground through said sterilization tower bracing frame, and said combustion tower passes through said combustion tower bracing frame support on the ground.The corresponding bracing frame of design supports combustion tower and sterilization tower on the ground respectively; Need not smelt the pond and bear the weight of combustion tower and sterilization tower; Strengthened and smelted the security of pond under hot conditions, be convenient to realize the suitability for industrialized production use, stayed space much of that for expansion incinerator disposing capacity; Combustion tower height, the melting pond length of can extending during the increasing of waste disposal amount and the tower height degree of sterilizing reach purposes such as realizing combustion space increasing, time of staying lengthening.
As preferably, an end that is positioned at said sterilization tower place in said smelting pond is provided with mud hole, row copper hole and peep hole.Can from the slag-drip opening deslagging to slag cleaning furnace, also can spray into coke blacking in high-temperature slag through peep hole in the use, the dilution of reducing reaction is to reduce the slag copper content, and last middle slag-drip opening is discharged high-temperature slag, emits high-purity copper liquid from putting the copper mouth.
The utlity model has following advantage:
Combustion tower, smelting pond and sterilization tower three's inner chamber is " U " font and is connected; Reasonable Arrangement combustion zone (combustion tower), slag making stripping section (melting pond), tail gas burnt zone (sterilization tower); Combustion zone and slag making stripping section branch are arranged; Combustion process and slag making dilution process all can independent regulation be controlled, and have strengthened operating mode stability and control and reliability of technology; In high-temperature smoke was flowed through the flow process of combustion tower → melting pond → sterilization tower, gas-solid two phase separations in the flue gas had been strengthened in 90 ° of changes of flue dust flowing velocity direction generation secondary, have reduced dust content; Compare with the rotary kiln incineration stove, the U-shaped design is more saved and is taken up an area of the space.
Set up fresh air inlet and the second smelting pond air admission hole and second turbulent burner has been installed in second air admission hole in preferred version along the flue gas stroke; Strengthened the control of stove combustion process; Be easy to increase combustion power, compare, prolonged the flue gas stroke and the time of staying with the rotary kiln incineration stove; Fuel divide the secondary input (once from combustion tower advance that the hole is dropped into, another time enter the hole and drop into from smelting pond second); Combustion air divides and blasts for three times (once entering the hole from combustion tower blasts, enters the hole and blast, blast from fresh air inlet for the third time from smelting pond second for the second time); Realized the burning of classification subregion; Avoid localized hyperthermia's phenomenon, suppressed the generation of nitrogen oxide.
The utlity model has " three eddy flows " technical characterictic; Be that combustion tower enters the hole and first turbulent burner, melting pond second are set enter the hole and second turbulent burner and fresh air inlet are set are designed to the tangential and get into; Make that the mobile route of particle path and combustible gas is a helical curve; Prolong the time of staying of combustible in combustion tower, melting pond and sterilization tower, guaranteed organic waste materials and tail gas completing combustion; First turbulent burner provides particle and flue gas screw power; Second turbulent burner has been added flue gas helical flow power; Fresh air inlet tangential air intake is further added the stability that tail gas screw power, three helical flow have strengthened operating mode; Suppress dioxin from the source and generate, accomplish the technology environment-protecting clean.
The utility model be applicable to low-grade caloric value greater than 1000kcal/kg, volatile content be lower than 60%, copper content is lower than all kinds of danger wastes economical and energy saving environmental protection incineration disposals such as 25% useless electronic circuit board, flammable industrial copper-bearing waste material, medical waste and uses.
The utlity model has high strength and dispose organic waste materials, high efficiente callback waste metal, energy-efficient disposal, multiple technical advantages such as low soot emissions cleaning disposal, low cost movement and wide waste material adaptability.After using the utility model, blister copper grade in the waste printed circuit board recycling product>80-90%, slag cupric < 0.5%, copper recovery>98%, the noble metal rate of recovery>96%.
Description of drawings
Front elevational schematic when Fig. 1 vertically dissects for the utility model embodiment one.
Fig. 2 is A-A cross-sectional schematic of Fig. 1.
Fig. 3 is the C when the air inlet is blown-C cross-sectional schematic of the sterilization tower of Fig. 1.
Fig. 4 is the B-B cross-sectional schematic in the smelting pond of Fig. 1.
Fig. 5 is the B-B cross-sectional schematic in the smelting pond of the utility model embodiment two.
Among the figure: combustion tower 1, combustion tower enter hole 11, and combustion tower portals 12, and the inner chamber 13 of combustion tower is smelted 2, the first smelting ponds, pond and entered hole 21; Hole 22 is entered in the second smelting pond, row's copper hole 23, the first peep holes 24, and mud hole 25, the second peep holes 26 are smelted the pond and are portalled 27; Smelt the inner chamber 28 in pond, big footpath section 281, converging transition 282, path section 283, the bottom surface 284 that smelts the inner chamber in pond; Smelt the end face 285 of the inner chamber in pond, promptly arrange copper hole 29, sterilization tower 3, the sterilization tower enters hole 31, the inner chamber 32 of sterilization tower; Urgent exhaust smoke hole 33, exhaust smoke hole 34, fresh air inlet 35 is the cylinder 36 of center line with the center line of the inner chamber of sterilization tower, air-flow 37; Second turbulent burner, 4, the first turbulent burners 5, it is heavy basic 6 to smelt the pond, combustion tower bracing frame 7, sterilization tower bracing frame 8.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Embodiment one, and referring to Fig. 1, a kind of waste printed circuit board high temperature incineration and reclaimed copper smelting furnace comprise the smelting pond 2 of the combustion tower 1 of the hollow of vertical setting, horizontally disposed hollow and the sterilization tower 3 of the vertical hollow that is provided with.
The roof of smelting pond 2 left ends is provided with the first smelting pond and enters hole 21.The left end wall of smelting pond 2 is provided with the second smelting pond and enters hole 22.The right-hand member of smelting the rear wall in pond 2 is provided with row's copper hole 23, left end is provided with urgent row's copper hole 29.The beneficial effect in the urgent row of design copper hole 29 is: unusual when occurring, when causing temperature to descend, can copper liquid accelerated to discharge, prevent that copper liquid is set in to smelt in the pond.The right-hand member wall of smelting pond 2 is provided with first peep hole 24.The beneficial effect that designs peep hole herein is: melt cinder both can carry out to slag cleaning furnace from mud hole 25 (referring to Fig. 2) deslagging; Also can spray into coke blacking in high-temperature slag through first peep hole 24; The dilution of reducing reaction is to reduce the slag copper content; The choice is big during use, and versatility is good.The middle part that smelts the rear wall in pond 2 is provided with second peep hole 26.The roof of smelting the right-hand member in pond 2 is provided with the smelting pond and portals 27.Advance second turbulent burner 4 is installed in the hole 22 in the second smelting pond.
The roof in melting pond 2 is flame retardant coating and heat-insulation layer from inside to outside successively.The diapire in melting pond 2 is flame retardant coating, heat-insulation layer and heavy layer from inside to outside successively.Heavy layer is a undercloak.The sidewall in melting pond 2 is that left and right sides end wall and front and rear wall are flame retardant coating, heat-insulation layer and steel backplate (referring to Fig. 4) from inside to outside successively.Flame retardant coating is built into by refractory brick, and the brickwork joint of sidewall and the brickwork joint of roof are interleaved.All leave dilatation joint on sidewall and the roof.Dilatation joint on the sidewall and the dilatation joint on the roof stagger each other.Melting pond 2 inner chamber brickwork joints are provided with by the requirement of I class masonry.Smelting pond 2 is installed on the smelting pond heavy basic 6.
The inner chamber 28 of smelting the pond is provided with big footpath section 281, converging transition 282 and path section 283 from left to right successively.The bottom surface of the inner chamber 28 in smelting pond is from left to right downward-sloping.The angle of inclination with smaller or equal to 3 ° proper, in the present embodiment be 2 °.Too big, the inner chamber 28 interior fluids of smelting the pond flow too soon, are unfavorable for the abundant burning of flue gas and the layering between the liquid metal.The length of smelting pond 2 is 6 meters.
The roof of combustion tower 1 is provided with that combustion tower enters hole 11, diapire is provided with combustion tower and portals 12.Combustion tower advances first turbulent burner 5 is installed in the hole 11.First turbulent burner 5 is underslung turbulent burner.The inner chamber 13 of combustion tower is cylindrical.Combustion tower portals 12 for circular port.The inner chamber 13 of combustion tower and combustion tower portal 2 coaxial lines and the cross section equal and opposite in direction of the two.The first smelting pond is entered hole 21 and is circular hole.Portal 12 equal and opposite in direction of hole 21 and combustion tower is advanced in the first smelting pond.Combustion tower portals 12 with entering hole 21 and connect in the first smelting ponds.Portal 12 lower surface of combustion tower is advanced between the upper surface in hole 21 to leave the gap with smelting the pond.The gap with smaller or equal to 5 centimetres, be good more than or equal to 5 millimeters, be 3 centimetres in the present embodiment.Fill with the high-temperature rigid refractory fibre in the gap.Leave acting as of slit and guarantee heat expansion or support combustion tower and the settlement of foundation of smelting the pond not simultaneously that the weight of combustion tower 1 can not be pressed in smelts on the pond 2.Combustion tower 1 is flame retardant coating, heat-insulation layer and box hat from inside to outside successively.Flame retardant coating is built into by refractory brick, and brickwork joint is provided with by the requirement of II class masonry.
The diapire of sterilization tower 3 is provided with the sterilization tower and enters hole 31.The inner chamber 32 of sterilization tower is cylindrical.The sterilization tower enters hole 31 and is circular port.The inner chamber 32 of sterilization tower advances hole 31 coaxial lines and the cross section equal and opposite in direction of the two with the sterilization tower.Smelting the pond portals and 27 is circular hole.Smelting the pond portals and 27 advances the equal and opposite in direction in hole 31 with the sterilization tower.The sterilization tower enters hole 31 and portals and 27 connect with smelting ponds.Portal and leave the gap between 27 the upper surface with smelting the pond in the lower surface that the sterilization tower enters hole 31.The gap with smaller or equal to 5 centimetres, be good more than or equal to 5 millimeters, be 3 centimetres in the present embodiment.Fill with the high-temperature rigid refractory fibre in the gap.Leave acting as of slit and guarantee heat expansion or support sterilization tower and the settlement of foundation of smelting the pond not simultaneously that the weight of sterilization tower 3 can not be pressed in smelts on the pond 2.Sterilization tower 3 is flame retardant coating, heat-insulation layer and box hat from inside to outside successively.Flame retardant coating is built into by refractory brick, and brickwork joint is provided with by the requirement of II class masonry.The sidewall of the lower end of sterilization tower 3 is provided with three fresh air inlets 35.Fresh air inlet 35 is a rectangular opening.Angle between the fresh air inlet 35 same level faces is 10 °.Angle between the fresh air inlet 35 same level faces be designed to greater than 0 °, smaller or equal to 30 the degree, air intake eddy flow effect is all more satisfactory.The height of three fresh air inlets 35 equates.The roof of sterilization tower 3 is provided with urgent exhaust smoke hole 33.When promptly not discharging fume urgent exhaust smoke hole 33 lids are established.The sidewall of the upper end of sterilization tower 3 is provided with exhaust smoke hole 34.
Referring to Fig. 2, the front side wall of smelting pond 2 right-hand members is provided with mud hole 25.Combustion tower 1 supports on the ground through combustion tower bracing frame 7.Sterilization tower 3 supports on the ground through sterilization tower bracing frame 8.Ground is provided with carrying combustion tower weight and prevents the heavy basis of combustion tower of combustion tower sinking usefulness and carry sterilization tower weight amount and the heavy basic carrying of sterilization tower of the tower sinking usefulness that prevents to sterilize; The heavy basis of combustion tower, the sterilization heavy basis of tower and the smelting heavy basic three in pond are separate; Do not link together, to reduce influence each other.In order to strengthen the security under 2 hot conditions of melting pond, before and after smelting the pond, regularly arrange numerous heel post-drag links outside the sidewall, outside smelting the left and right sides, pond sidewall, be furnished with end column-longitudinal tie (not drawing among the figure).
Referring to Fig. 3, the axis of fresh air inlet 35 is that the side of cylinder 36 of center line is tangent with the center line of inner chamber with the sterilization tower, and the direction of rotation of the swirling eddy that the air-flow 37 in the various inlet hole gets into the sterilization tower is produced is identical.
Referring to Fig. 4, the bottom surface 284 that smelts the inner chamber in pond is the domes to lower recess, smelts the domes of end face 285 for raising up of the inner chamber in pond, and the span of the end face 285 of the inner chamber in smelting pond is greater than the span of the bottom surface 284 of the inner chamber of smelting the pond.The cross section integral body of smelting the inner chamber 28 in pond is the narrow trapezoidal shape in wide lower end, upper end.
Below serve as that row are done specifically the course of work of the utility model with the burning disposal waste printed circuit board:
Referring to Fig. 1, waste printed circuit board powder or particle enter hole 11 from combustion tower and drop in the combustion tower 1.
Under the effect of a small amount of compressed air waste printed circuit board powder or particle leave first turbulent burner 5 descending at inner chamber 13 inside spins of combustion tower, and and the combustion air sent into of first turbulent burner 5 fully mix and burning.
Burn formed flue gas and liquid metal enters hole 11 and gets in the inner chamber 28 of smelting ponds and the inner chamber 28 of the smelting the pond and be divided into flue gas layer (gas-phase space), layer liquid (liquid phase space) from the top down successively through the combustion tower 12 and first smelting pond of portalling.
Insulation is advanced in the flue gas layer of the inner chamber 28 that is advanced into the melting pond before the hole 22 with waste printed circuit board powder or particle or coal dust (below be referred to as insulation fuel) and air warp second smelting pond under the compressed air effect; Under the burning exothermic effects; Insulation fuel is by rapid heating flame; Play further burning and do not burn toxic gas and keep the gas-phase space action of temperature from what combustion tower flowed out, the metal in the insulation fuel is heated to molten condition and falls into the liquid phase space in the melting pond 2.The new high-temperature metal melt that forms in high-temperature metal melt that combustion tower 1 falls and melting pond is deposited on the bottom of the inner chamber 28 in melting pond, under the flue gas effect, flows to right-hand member very lentamente.Because high-temperature slag density is greater than copper liquid density; Adding that the length of smelting pond 2 is long (in the present embodiment is 6 meters; Can extend according to actual needs and smelt the length in pond 2); Make melt that enough mobile separation times arranged, when flowing to the right-hand member of smelting pond 2 and be path section 283, slag and copper liquid layering ideally separate.
Liquid level in the melting pond 2 below combustion tower 1 the molten mass stockpile occurs and amasss when burning, and starts second turbulent burner 4, impels the windrow short time to burn, and prevents heap carbon phenomenon.
Melt cinder is discharged from mud hole 25 (referring to Fig. 2), and liquid copper is discharged from row's copper hole 23.
The high-temperature flue gas of smelting in the pond 2 portals 27 to enter hole 31 with the sterilization tower and get in the inner chamber 32 of sterilization towers through smelting the pond.
Combustion air gets in the sterilization tower 3 from fresh air inlet 35.Under suction force and the effect of combustion air suction force that exhaust smoke hole 34 negative pressure, sterilization tower 3 highly form; Flue gas can burn in the spiral rising; Formed tail gas is successfully discharged the sterilization tower through exhaust smoke hole 34, and combustion air can make flue gas further fully burning in sterilization tower 3.
Guarantee the temperature requirement of sterilization tower 3 during baker earlier, satisfy the temperature requirement in melting pond 2 again, satisfy the temperature requirement of combustion tower 1 at last.
Embodiment two, referring to Fig. 5, with the difference of embodiment one be circle for the cross section of the inner chamber 28 of smelting the pond.
When if same sterilization tower 3 is highly higher, can sterilization tower 3 be designed to multi-section serial and form, the weight of each joint is directly born through sterilization tower bracing frame 8, and the weight that yet promptly goes up joint does not pass to down joint.Layout high-temperature flame-proof packing ring rear flange is connected sealed air-tight between joint and the joint.
The beneficial effect of design is like this: each saves and can make according to identical designing requirement, need not consider to change the weight capacity of joint down because of highly increasing, so can will and increase the height of combustion tower and/or sterilization tower according to processing demands easily.
More than among two embodiment; Be designed to consistent along the air-flow direction of rotation of first turbulent burner of air current flow direction, the air-flow direction of rotation of second turbulent burner with the air-flow eddy flow direction that produces by the air inlet air intake; Promptly being clockwise direction simultaneously, can certainly be clockwise direction simultaneously.The beneficial effect of design is like this: can guarantee that air-flow can successfully move ahead successively when combustion tower, smelting pond and sterilization tower, prolong stroke and the time of staying of high temperature gas flow in stove to greatest extent, impel abundant completing combustion of toxic tail gas and oxidation.
Claims (10)
1. waste printed circuit board high temperature incineration and reclaimed copper smelting furnace; It is characterized in that; The sterilization tower of the hollow that comprises the smelting pond of the combustion tower of the hollow of vertical setting, horizontally disposed hollow and vertically be provided with, the roof of said smelting pond one end are provided with the first smelting Chi Jinkong, end wall is provided with second and smelts Chi Jinkong, and the roof of the other end in said smelting pond is provided with the smelting pond and portals; The roof of said combustion tower is provided with that combustion tower enters the hole, diapire is provided with combustion tower and portals; The diapire of said sterilization tower is provided with that the sterilization tower enters the hole, the top is provided with exhaust smoke hole, and said combustion tower advances first turbulent burner is installed in the hole, and said combustion tower portals and advances hole butt joint with the said first smelting pond; Portal and advance the hole butt joint with said sterilization tower in said smelting pond, the sidewall of said sterilization tower is provided with at least two fresh air inlets.
2. waste printed circuit board high temperature incineration according to claim 1 and reclaimed copper smelting furnace is characterized in that, the said second smelting pond is advanced second turbulent burner is installed in the hole.
3. waste printed circuit board high temperature incineration according to claim 1 and reclaimed copper smelting furnace is characterized in that said air inlet is positioned at the bottom of said sterilization tower.
4. according to claim 1 or 2 or 3 described waste printed circuit board high temperature incineration and reclaimed copper smelting furnaces; It is characterized in that; The axis of said fresh air inlet is that the cylindrical side of center line is tangent with the center line with the inner chamber of said sterilization tower, and the direction of rotation of the swirling eddy that the air-flow in the various inlet hole gets into said sterilization tower is produced in the sterilization tower is identical.
5. according to claim 1 or 2 or 3 described waste printed circuit board high temperature incineration and reclaimed copper smelting furnaces, it is characterized in that the corner dimension between the said fresh air inlet same level face is A, 0 ° of < A≤30 °.
6. according to claim 1 or 2 or 3 described waste printed circuit board high temperature incineration and reclaimed copper smelting furnaces, it is characterized in that the height of said fresh air inlet equates.
7. according to claim 1 or 2 or 3 described waste printed circuit board high temperature incineration and reclaimed copper smelting furnaces; It is characterized in that, identical along the air-flow direction of rotation of the air-flow direction of rotation of described first turbulent burner of air current flow direction, described second turbulent burner with the air-flow eddy flow direction that produces by described air inlet air intake.
8. according to claim 1 or 2 or 3 described waste printed circuit board high temperature incineration and reclaimed copper smelting furnaces; It is characterized in that; The bottom surface of the inner chamber in said smelting pond is for to domes, the end face of lower recess being the span of the span of the domes that raise up, end face more than or equal to the bottom surface; End is provided with big footpath section, converging transition and path section to said sterilization tower place end to the inner chamber in said smelting pond successively from said combustion tower place, and the bottom surface of the inner chamber in said smelting pond holds said sterilization tower place end downward-sloping from said combustion tower place.
9. according to claim 1 or 2 or 3 described waste printed circuit board high temperature incineration and reclaimed copper smelting furnaces; It is characterized in that; Comprise sterilization tower bracing frame and combustion tower bracing frame; Said sterilization tower supports on the ground through said sterilization tower bracing frame, and said combustion tower supports on the ground through said combustion tower bracing frame.
10. according to claim 1 or 2 or 3 described waste printed circuit board high temperature incineration and reclaimed copper smelting furnaces, it is characterized in that the end that said smelting pond is positioned at said sterilization tower place is provided with mud hole, row copper hole and peep hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202452611U CN202169274U (en) | 2011-07-13 | 2011-07-13 | Smelting furnace for incinerating waste circuit boards at high temperature and recovering copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202452611U CN202169274U (en) | 2011-07-13 | 2011-07-13 | Smelting furnace for incinerating waste circuit boards at high temperature and recovering copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202169274U true CN202169274U (en) | 2012-03-21 |
Family
ID=45827478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202452611U Expired - Fee Related CN202169274U (en) | 2011-07-13 | 2011-07-13 | Smelting furnace for incinerating waste circuit boards at high temperature and recovering copper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202169274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002370A (en) * | 2015-07-24 | 2015-10-28 | 铜陵有色金属集团股份有限公司金昌冶炼厂 | Charging cylinder for Ausmelt furnace |
| CN106949735A (en) * | 2016-12-09 | 2017-07-14 | 杭州跟策科技有限公司 | If the copper fusing shaft furnace of lifting observation elevator |
-
2011
- 2011-07-13 CN CN2011202452611U patent/CN202169274U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002370A (en) * | 2015-07-24 | 2015-10-28 | 铜陵有色金属集团股份有限公司金昌冶炼厂 | Charging cylinder for Ausmelt furnace |
| CN106949735A (en) * | 2016-12-09 | 2017-07-14 | 杭州跟策科技有限公司 | If the copper fusing shaft furnace of lifting observation elevator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20180713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |