CN104232929A - Novel high-grade miscellaneous copper refining furnace system - Google Patents
Novel high-grade miscellaneous copper refining furnace system Download PDFInfo
- Publication number
- CN104232929A CN104232929A CN201410520278.1A CN201410520278A CN104232929A CN 104232929 A CN104232929 A CN 104232929A CN 201410520278 A CN201410520278 A CN 201410520278A CN 104232929 A CN104232929 A CN 104232929A
- Authority
- CN
- China
- Prior art keywords
- copper
- furnace
- water
- coal
- furnace wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a novel high-grade miscellaneous copper refining furnace system which comprises a furnace body and an auxiliary system, wherein the furnace body is formed by butting and combining furnace tails of two fixed type refining reflection furnaces; two groups of combustion openings are symmetrically formed in the left end and the right end of the furnace body and are correspondingly provided with combustion systems and oxygen and gas supply systems; a high-grade copper outlet and a low-grade copper outlet are formed in one end of the furnace body and both adopt water cooling type structures; each copper outlet is correspondingly provided with a cooling water circulating system; a smoke discharging opening is formed in the middle of the furnace body; a material feeding working door is arranged on the furnace wall on one side of the furnace body; a reducing pipe is also arranged on each material feeding working door; each reducing pipe is externally connected with a reduced coal-based powder quantitative control device; three slag discharging openings are also formed in the furnace wall; sizing bricks are symmetrically mounted at the lower part of the furnace wall on two sides of the upper part of the furnace bottom; ventilating pipe structures are mounted on the sizing bricks. The novel high-grade miscellaneous copper refining furnace system is ingenious in structural design, integrates the advantages of three existing refining furnaces, and not only lowers the investment cost, but also is relatively energy-saving and environment-friendly.
Description
Technical field
The present invention relates to composition brass pyrorefining technical equipment field, especially a kind of novel higher-grade composition brass refining furnace system.
Background technology
In general, grade is called higher-grade composition brass higher than the composition brass of 90%, can be cast into electrolytic anode plate through a pyrorefining operation.At present, China's higher-grade composition brass pyrorefining has these three kinds of technology modes of refining reverberatory furnace, tilting-type refining furnace and NGL stove, and they cut both ways.
The major advantage of refining reverberatory furnace: one is that the heat exchange performance of burner hearth is good, and technical maturity, can process the various copper material comprising bulk blister copper; Two is that structure is simple, cheap; Three is easy operations, and oxidation and induction intubate can spread all over whole burner hearth, and skim also relatively more thorough, the copper water taken out of is also fewer, and the copper quality of refinery process is good.The maximum shortcoming of reverberatory furnace is the restriction due to technique and operation, and the capacity of stove is less than normal, and general 80---120 tons, only a few reaches 150---, are only equivalent to the half of other two kinds of type of furnaces by 160 tons; Meanwhile, owing to not taking more effective conservation measures, so unit consumption of energy is higher, index best is at present approximately 80 mark cubic meter Sweet natural gas/ton positive plates (the copper material of process grade 90%, does not comprise reduction gas); In addition, being oxidized, reducing and skimming needs manual operation, and during copper, copper discharge also needs manually to insert carbon-point to regulate, and therefore labour intensity is a little large, and site environment is good not.Refining reverberatory furnace compares and is suitable for the enterprise that industrial scale is smaller, fund is more not enough.
Tilting-type refining furnace is introduced from external, and capacity reaches 350 tons, and body of heater can rotate certain angle in front and back.Tilting furnace great advantage be oxidation, reduction and tapping operation be all carry out voluntarily after body of heater being turned over certain angle, more easily; Meanwhile, the rotation of body of heater can be utilized to regulate the copper discharge of copper outlet, also safer.But the structure of tilting furnace is very complicated, it is arranged on rotary bearing by whole reverberatory furnace (gross weight during operation is close to 900 tons), and therefore, cost is extremely expensive, and the current cost of the tilting furnace of 350 tons is up to one hundred million.And, tilting furnace does not also take the power-saving technologies such as pure oxygen burning, so its energy consumption even taller than reverberatory furnace (about 100 mark cubic meter/ton positive plate).China only has Guixi, Jiangxi, Wuzhou, Guangxi and Jinchuan, Gansu San Jia large-lot producer to install this tilting furnace at present, and can predict, tilting furnace will be eliminated.
NGL stove is the composition brass novel process for refining that Rayleigh, Nanchang company develops recently, it is the novel furnace improved on Rotary Anode Furnace basis, capacity reaches 250 tons, and have employed the power-saving technology such as pure oxygen burning and gas permeable brick, come into operation in Wuzhou, Guangxi and Linyi, Shandong Liang Jia enterprise at present.The body of heater of NGL stove also can before and after rotate, therefore its be oxidized, reduce, slag tap substantially identical with tilting furnace with the operation of copper; But structural rate tilting furnace wants simple, so cost reduces a lot; Meanwhile, owing to have employed power-saving technology, gas as single loss-rate reverberatory furnace reduces about 35%, and the Sweet natural gas unit consumption of current Liang Jia enterprise is all 55---60 marks cubic meter/ton positive plate (containing reduction gas).Therefore, current NGL stove receives the concern of enterprise.But, compared with reverberatory furnace, the cost of NGL stove still very high (the NGL stove of 250 tons about needs 5,000 ten thousand), pure oxygen burning also needs to consume about 120 mark cubic meter/ton positive plates, the cost that Sweet natural gas saving is got off, after the cost that deduction oxygen cost and depreciation of fixed assets increase, remain little, so from economic benefit, NGL stove, compared with reverberatory furnace, too not large advantage.And can NGL stove weigh the blister copper of 1-2 tons also not through the inspection of practice by treating piece, and the NGL stove that capacity brings up to 350 tons is also among exploitation.In this sense, NGL stove neither gratifying technology mode.
Above three kinds of type of furnaces or capacity is little, unit consumption of energy is high, or it is not energy-conservation to involve great expense, or large-tonnage blister copper can not be processed and economic benefit is not high, therefore these three kinds of type of furnaces all can not obtain good actual application value.
Summary of the invention
Object of the present invention is exactly the problems referred to above existed for existing three kinds of traditional composition brass pyrorefining type of furnaces, and provide a kind of capacity large, cost is low, the novel higher-grade composition brass refining furnace system that effects of energy conservation and environmental protection is good.
Concrete scheme of the present invention is: a kind of novel higher-grade composition brass refining furnace system, include body of heater and subsystem, it is characterized in that: described body of heater docks by the stove tail of two fixed refining reverberatory furnaces the Large Copacity composition brass refining furnace combined with stove tail, two burner hearths are communicated with to get up formation burner hearth, the furnace wall mid-way at two ends, body of heater left and right is arranged with two groups of burner ports, correspondingly with often organizing burner port be provided with a firing system and oxygen supply airing system, often organize burner port and be equipped with three little burner ports in the distribution of falling isosceles triangle, middle little burner port height copper liquid level 0.6m level is installed, two, both sides little burner port height copper liquid level 0.9m is downward-sloping to be installed in assembling shape, the furnace wall of body of heater one end is provided with a high-order copper outlet and a low level copper outlet, two copper outlets all adopt water-cooled structure, high-order copper outlet exceeds furnace bottom face 400mm and arranges, and low level copper outlet is arranged lower than furnace bottom face, and each copper outlet is all corresponding is fitted with a set of cooling water recirculation system, in the middle part of described body of heater, furnace roof is provided with smoke outlet, correspondingly with smoke outlet is connected with fume exhaust system, the furnace wall of described body of heater side offers four reinforced service gates, the right and left that described reinforced service gate is positioned at smoke outlet respectively establishes two, described reinforced service gate local adopts the protection of steel construction water jacket, movable sealing baffle plate it is equipped with, petticoat pipe is equipped with above the outside of each reinforced service gate, each reinforced service gate also inserts copper liquid level from outside to inside and is provided with a reduction tube, every root reduction tube is externally connected with a reduction coal original washing powder quantitative control device, with the furnace wall of reinforced service gate the same side on be also provided with three slag-drip openings, three slag-drip openings one are distributed in middle part, two other is distributed in furnace wall two ends, along arranging lower than burner hearth internal copper liquid level 100mm under described slag-drip opening, each slag-drip opening local adopts the protection of steel construction water jacket, it is all equipped with movable sealing baffle plate, in the outer upper of each slag-drip opening, petticoat pipe is housed, all thermal baffle is housed in the front of each slag-drip opening, at each slag-drip opening externally to having slag chute, be provided with in the below of slag chute track of mucking haulage, track of mucking haulage is placed with slag waggon, be symmetrically installed with some sizing bricks being positioned at the furnace wall bottom, both sides above furnace bottom, every block sizing brick is all provided with a vent pipe structure, all be inserted with the permeability cell of a small-bore in each vent pipe structure, the outer end of described small-bore permeability cell is connected with for compressing wind system.
Described in the present invention, firing system comprises pure oxygen combustor, the control valve group of oxygen and Sweet natural gas and electrical control cubicles; It is corresponding with three little burner ports that described pure oxygen combustor is provided with three jet pipes, and be located at the mixing jet tube for Sweet natural gas and primary oxygen in the middle of furnace wall, two other is secondary oxygen spray pipe; Described control group valve comprises emergency cutting off valve, pressure regulator valve, flow control valve and under meter, and described flow control valve adopts PID to regulate.
The oxygen concentration more than 90% that the airing system of oxygen supply described in the present invention provides, oxygen and gas pressure are more than 0.4MPa.
Water-cooled structure described in the present invention includes the copper mouth sizing brick arranged in furnace wall, build in the middle of copper mouth sizing brick and have circular copper mouth, outside described copper mouth sizing brick, closed assembly is provided with one piece of water-cooled copper oralia, run through in the middle of described water-cooled copper oralia and offer a circle hole shape copper outlet, align and arrange in the shape circular Tong Kou axis of building in brick of described circle hole shape copper outlet axis and copper mouth, a cooling-water duct is provided with around circle hole shape copper outlet in described water-cooled copper oralia, described cooling-water duct is connected with water inlet pipe and water outlet pipe, described water inlet pipe and water outlet pipe is connected with described cooling water recirculation system.
Described in the present invention, cooling water recirculation system includes working shaft, back water pump, cooling tower, backup diesel working shaft, pond and water-softening plant, and described cooling water recirculation system pressure of supply water is greater than 0.2MPa.
Fume exhaust system described in the present invention is by flue vertical shaft, spray cooling tower, bagroom, smoke exhaust fan and chimney composition.
Four reinforced work every height 800mm described in the present invention, one of them reinforced service gate gate-width 1600mm, other three gate-width 1200mm.
Reduction coal original washing powder quantitative control device is devised in order to better control copper water oxygen level, the original washing powder of reduction coal described in the present invention quantitative control device includes coal dust pot, a pressurising tracheae is equipped with on the top of coal dust pot, pressurising tracheae is provided with pressurising magnetic valve, a coal-feeding tube is provided with in the lower end of coal dust pot, coal-feeding tube is provided with magnetic valve of delivering coal, be connected with one in the lower end of coal-feeding tube and have axle spiral coal supply transfer roller, described have axle spiral coal supply transfer roller to adopt variable-frequency motor step-down gear to drive, described have the opening for feed of axle spiral coal supply transfer roller to be connected with coal-feeding tube, the discharge port end of described spiral coal supply transfer roller is connected with a compression airduct, described compression airduct one end is connected with described reduction tube, the compression airduct the other end one air-supply solenoid control, described pressurising magnetic valve, magnetic valve of delivering coal, air-supply magnetic valve and variable-frequency motor step-down gear are by an electrical control system centralized Control.
Vent pipe structure described in the present invention embeds and is arranged on furnace wall inside, each vent pipe structure includes the sizing brick being embedded in furnace wall inside, the oxidation-resistance permeability cell of a small-bore is equipped with in sizing brick, described permeability cell one end puts in burner hearth, the other end stretches out outside furnace wall, permeability cell becomes 5-10 ° of angle to be inclined upwardly to install with horizontal plane, the permeability cell outer end section of stretching out is set with a protecting cover, described protecting cover and furnace wall are fastenedly connected, and protecting cover and permeability cell are fastening by securing bolt, at protecting cover, also filler is filled with in the space of shaping between brick and furnace wall.
Be made up of the gentle bag of air compressor machine for compression wind system described in the present invention, described air compressor machine quantity 3-5, provides compress wind pressure to be greater than 0.4MPa.
Smart structural design of the present invention is reasonable, existing three kinds of refining type of furnaces can be overcome well not enough in actual production, combine the advantage of three, with the reasonable refining reverberatory furnace of heat transfer performance for prototype, by its capacity expansion to more than 300 tons, adopt follow-on Pure Oxygen Combustion Technology, and replace gas permeable brick with the permeability cell of small-bore, under completely airtight environment, carry out oxidation and induction operation, not only reduce cost of investment, and energy-conserving and environment-protective more.
Accompanying drawing explanation
Fig. 1 be the present invention totally master cut open structural representation;
Fig. 2 be in Fig. 1 A-A to schematic diagram;
Fig. 3 be in Fig. 1 B-B to schematic diagram;
Fig. 4 is vent pipe structure scheme of installation in the present invention;
Fig. 5 is reinforced service gate cut-away illustration in the present invention;
Fig. 6 is slag-drip opening cut-away illustration in the present invention;
Fig. 7 is the main apparent direction structural representation of copper oralia in the present invention;
Fig. 8 is that structural representation is cutd open on a left side of Fig. 7;
Fig. 9 is water-cooled structure cutting scheme of installation in the present invention;
Figure 10 is reduction coal original washing powder quantitative control device schematic diagram in the present invention.
In figure: 1-little burner port, 2-slag-drip opening, 3-reinforced service gate, 4-body of heater, 5-smoke outlet, 6-low level copper outlet, 7-furnace bottom face, 8-track of mucking haulage, 9-copper liquid level, 10-reduction coal original washing powder quantitative control device, 11-reduction tube, 12-high-order copper outlet, 13-secondary oxygen spray pipe, the mixing jet tube of 14-Sweet natural gas and primary oxygen, 15-permeability cell, 16-sizing brick, 17-furnace wall, 18-protecting cover, 19-securing bolt, 20-movable sealing baffle plate, 21-petticoat pipe, 22-steel construction water jacket, 23-slag chute, 24-thermal baffle, 25-slag waggon, 26-circle hole shape copper outlet, 27-cooling-water duct, 28-circular copper mouth, 29-copper mouth sizing brick, 30-water inlet pipe and water outlet pipe, 31-water-cooled copper oralia, 32-coal dust pot, 33-coal-feeding tube, 34-magnetic valve of delivering coal, 35-there is axle spiral coal supply transfer roller, 36-compression airduct, 37-air-supply magnetic valve, 38-variable-frequency motor step-down gear, 39-pressurising magnetic valve, 40-pressurising tracheae.
Embodiment
See Fig. 1-Figure 10, the present invention is a kind of novel higher-grade composition brass refining furnace system, include stove, 4 and subsystem, it is characterized in that: described body of heater docks by the stove tail of two fixed refining reverberatory furnaces the Large Copacity composition brass refining furnace combined with stove tail, two burner hearths are communicated with to get up formation burner hearth, the furnace wall mid-way at two ends, body of heater left and right is arranged with two groups of burner ports, correspondingly with often organizing burner port be provided with a firing system and oxygen supply airing system, often organize burner port and be equipped with three little burner ports 1 in the distribution of falling isosceles triangle, middle little burner port height copper liquid level 0.6m level is installed, two, both sides little burner port height copper liquid level 0.9m is downward-sloping to be installed in assembling shape, the furnace wall of body of heater 4 one end is provided with high-order copper outlet 12 and a low level copper outlet 6, two copper outlets all adopt water-cooled structure, high-order copper outlet 12 exceeds furnace bottom face 400mm and arranges, and low level copper outlet 6 is arranged lower than furnace bottom face 7, and each copper outlet is all corresponding is fitted with a set of cooling water recirculation system, in the middle part of described body of heater, furnace roof is provided with smoke outlet 5, correspondingly with smoke outlet is connected with fume exhaust system, the furnace wall of described body of heater side offers four reinforced service gates 3, the right and left that described reinforced service gate is positioned at smoke outlet respectively establishes two, described reinforced service gate local adopts steel construction water jacket 22 to protect, movable sealing baffle plate 20 it is equipped with, petticoat pipe 21 is equipped with above the outside of each reinforced service gate, each reinforced service gate also inserts copper liquid level 9 from outside to inside and is provided with a reduction tube 11, every root reduction tube is externally connected with a reduction coal original washing powder quantitative control device 10, with the furnace wall of reinforced service gate the same side on be also provided with three slag-drip openings 2, three slag-drip openings one are distributed in middle part, two other is distributed in furnace wall two ends, along arranging lower than burner hearth internal copper liquid level 100mm under described slag-drip opening, each slag-drip opening local adopts steel construction water jacket 22 to protect, it is all equipped with movable sealing baffle plate, in the outer upper of each slag-drip opening, petticoat pipe is housed, in the front of each slag-drip opening, thermal baffle 24 is all housed, at each slag-drip opening externally to having slag chute 23, track 8 of mucking haulage is provided with in the below of slag chute, muck haulage on track and be placed with slag waggon 25, be symmetrically installed with some sizing bricks 16 being positioned at the furnace wall bottom, both sides above furnace bottom, every block sizing brick is all provided with a vent pipe structure, all be inserted with the permeability cell 15 of a small-bore in each vent pipe structure, the outer end of described small-bore permeability cell is connected with for compressing wind system.
Described in the present invention, firing system comprises pure oxygen combustor, the control valve group of oxygen and Sweet natural gas and electrical control cubicles; It is corresponding with three little burner ports that described pure oxygen combustor is provided with three jet pipes, and be located at the mixing jet tube 14 for Sweet natural gas and primary oxygen in the middle of furnace wall, two other is secondary oxygen spray pipe 13; Described control group valve comprises emergency cutting off valve, pressure regulator valve, flow control valve and under meter, and described flow control valve adopts PID to regulate.
The oxygen concentration more than 90% that the airing system of oxygen supply described in the present invention provides, oxygen and gas pressure are more than 0.4MPa.
Water-cooled structure described in the present invention includes the copper mouth sizing brick 29 arranged in furnace wall 17, build in the middle of copper mouth sizing brick and have circular copper mouth 28, outside described copper mouth sizing brick, closed assembly is provided with one piece of water-cooled copper oralia 31, run through in the middle of described water-cooled copper oralia and offer a circle hole shape copper outlet 26, align and arrange in the shape circular Tong Kou axis of building in brick of described circle hole shape copper outlet axis and copper mouth, a cooling-water duct 27 is provided with around circle hole shape copper outlet in described water-cooled copper oralia, described cooling-water duct is connected with water inlet pipe and water outlet pipe 30, described water inlet pipe and water outlet pipe is connected with described cooling water recirculation system.
Described in the present invention, cooling water recirculation system includes working shaft, back water pump, cooling tower, backup diesel working shaft, pond and water-softening plant, and described cooling water recirculation system pressure of supply water is greater than 0.2MPa.
Fume exhaust system described in the present invention is by flue vertical shaft, spray cooling tower, bagroom, smoke exhaust fan and chimney composition.
Four reinforced work every height 800mm described in the present invention, one of them reinforced service gate gate-width 1600mm, other three gate-width 1200mm.
The original washing powder of reduction coal described in the present invention quantitative control device includes coal dust pot 32, a pressurising tracheae 40 is equipped with on the top of coal dust pot, pressurising tracheae is provided with pressurising magnetic valve 39, a coal-feeding tube 33 is provided with in the lower end of coal dust pot, coal-feeding tube is provided with magnetic valve 34 of delivering coal, be connected with one in the lower end of coal-feeding tube and have axle spiral coal supply transfer roller 35, described have axle spiral coal supply transfer roller to adopt variable-frequency motor step-down gear 38 to drive, described have the opening for feed of axle spiral coal supply transfer roller to be connected with coal-feeding tube, the discharge port end of described spiral coal supply transfer roller is connected with a compression airduct 36, described compression airduct one end is connected with described reduction tube 11, the compression airduct the other end one air-supply magnetic valve 37 controls, described pressurising magnetic valve, magnetic valve of delivering coal, air-supply magnetic valve and variable-frequency motor step-down gear are by an electrical control system centralized Control.
Vent pipe structure described in the present invention embeds and is arranged on furnace wall 17 inside, each vent pipe structure includes the sizing brick 16 being embedded in furnace wall inside, the oxidation-resistance permeability cell 15 of a small-bore is equipped with in sizing brick, described permeability cell one end puts in burner hearth, the other end stretches out outside furnace wall, permeability cell becomes 5-10 ° of angle to be inclined upwardly to install with horizontal plane, the permeability cell outer end section of stretching out is set with a protecting cover 18, described protecting cover and furnace wall are fastenedly connected, and protecting cover and permeability cell are fastening by securing bolt 19, at protecting cover, also filler is filled with in the space of shaping between brick and furnace wall.
Be made up of the gentle bag of air compressor machine for compression wind system described in the present invention, described air compressor machine quantity 3-5, provides compress wind pressure to be greater than 0.4MPa.
The structure composition of the present invention advantage of traditional composition brass pyrorefining type of furnace, with the reasonable refining reverberatory furnace of heat transfer performance for prototype, by its capacity expansion to more than 300 tons, adopt follow-on Pure Oxygen Combustion Technology, and replace gas permeable brick with the permeability cell of small-bore, under completely airtight environment, carry out oxidation and induction operation, not only reduce cost of investment, and energy-conserving and environment-protective more.
Below in conjunction with accompanying drawing, elementary operation of the present invention is described:
(1) feeding operation: the present invention has four reinforced service gates (see Fig. 5), two charging vehicles can be held and carry out reinforced operation (other type of furnace all can only be held a charging vehicle and feed in raw material) simultaneously, charging vehicle is generally with 8 ton forklift repackings, its operation is very flexible, feed rate is fast, skillfully feeding in raw material, work is per hour can feed in raw material more than 40 times, and copper material is covered each corner of burner hearth, therefore of the present invention reinforced short with the type of furnace of the time of fusion stage capacity more same than other.
(2) burn operation: the present invention adopts pure oxygen combustion-supporting, oxygen dense more than 90%.Pure oxygen burning combustion oxygen is divided into an oxygen and secondary oxygen two parts, see Fig. 3, an oxygen (accounting for about 30%) mixes with Sweet natural gas and sprays from mixed vent, flame bright and very brief is together formed in stove, secondary oxygen then sprays from two other spout, because the velocity ratio of ejection is higher, form the negative pressure of local, make secondary oxygen stir with the high-temperature flue gas in stove together with and be diluted into as free oxygen, free oxygen collides with the free Sweet natural gas also do not burnt and burns, this burning is a kind of distributed burning, spread all over whole burner hearth, make the temperature of combustion that whole burner hearth can reach higher.Respectively there is a set of burner at the two ends of body of heater of the present invention, and wherein, mixed vent is in centre, and the flame that ejection afterfire is formed presses close to copper material and liquid level, mainly provides the heat within burner 3 meters; Two spouts of secondary oxygen are in both sides, and downward and middle deflection 25---30 degree, two bursts of secondary Oxygen Flow form the gesture of pincer attack to mixed airflow, in the free oxygen of secondary oxygen and mixed airflow, the collision of unburned free Sweet natural gas is burnt, and mainly provides the heat of hearth region beyond burner 3 meters.In the different operational phases, need to control different quantity combusted, furnace pressure and melting atmosphere, therefore want the ratio of reasonable adjusting Sweet natural gas and oxygen.The type of furnace of the present invention has two burner hearth spaces, requires the quantity combusted at two, general mood is consistent than substantially, to reduce the interference between two burner hearths.
(3) oxidation, restoring operation: oxidation and induction operation of the present invention utilizes permeability cell to carry out.See Fig. 3 Fig. 4, permeability cell is arranged on both sides furnace wall near furnace bottom position, is embedded in sizing brick, is immersed in copper underwater, all passes into the gas of enough pressure between whole operational period, unimpeded to maintain it.Permeability cell is alloy material, both can pass into the inactive nitrogen of chemical, also can pass into the active air of chemical, oxygen-rich air or Sweet natural gas.At different sessions, pass into different gas, just can realize different operations, reach different objects.
Charge melted early stage in stage: pass into air+Sweet natural gas (ratio 10:1), accelerate fusing.
In the charge melted later stage in stage: pass into air, remain unimpeded, and be oxidized.
Oxidation stage: pass into oxygen-rich air (oxygen dense 40%), accelerated oxidation and slag making.
In the deslagging stage: pass into air, surface scum is driven near cinder notch.
Reduction phase: pass into Sweet natural gas, copper water reduction deoxidation.
In other stage: pass into nitrogen, maintain the unimpeded of permeability cell, stir copper water simultaneously.
Pass into the pressure 0.2-04MPa of gas, uninterrupted air feed must be kept, therefore, when carrying out gas and switching, first open the gas steam supply valve preparing to switch, when pressure reaches prescribed value, then close original air-supplying valve.Because permeability cell aperture is little, gaseous tension is high, and gas sprays from the mouth of pipe with high speed, so generally can not block.If just in case block, can change after the casting of copper water in stove, pull down protecting cover, with the boiled aperture of oxygen, just can insert new pipe.Permeability cell aperture is little, and quantity is many, is distributed in burner hearth both sides, and the air blasted from permeability cell or Sweet natural gas contact more abundant with copper water, so the utilization ratio of oxidation and induction is higher.
(4) deslagging operation: see Fig. 6, the present invention adopts manually to skim and can reach more thoroughly degree, and the copper water yield of taking out of is little, and this is conducive to shortening the recovery time, improves direct yield, reduces unit consumption.
(5) pouring operation: see Fig. 1 and Fig. 2, the type of furnace of the present invention is provided with the copper outlet of high and low two casting positive plates, when just starting copper, use high-order copper outlet, at this moment the copper water height on Tong Kou top only has 500 millimeter, and pressure is smaller, after the copper water surface is reduced to certain altitude, copper discharge reduces, and at this moment uses low level copper outlet again.No matter be the copper outlet using water-cooled structure, or with sizing brick copper outlet, all must reduce the injury to copper mouth as far as possible, keep the circle of copper mouth, if copper mouth generation gross distortion, just need to change.The adjustment of copper discharge, generally uses carbon-point, and carbon-point diameter is more smaller than copper mouth, and front end is whittled into an inclined-plane, and carbon-point inserts copper mouth, inclined-plane under, carbon-point inserts darker, then copper discharge is less.After the casting of copper water, close copper mouth with the blocking of white clay group, and insert a round steel, facilitate the burning oxygen of next copper.If need interrupt copper when casting, when there being pressure, available conical carbon-point or rod iron block up copper mouth.
The concrete size of body of heater in the present invention; the size of reinforced service gate and slag-drip opening and distribution mode on body of heater; the concrete setting of firing system, fume exhaust system and oxygen supply and natural gas system; quantity that vent pipe structure is arranged etc. can make suitable adjustment according to practical situation; but on central principle of the present invention not impact, therefore all fall into protection scope of the present invention.
Claims (10)
1. a novel higher-grade composition brass refining furnace system, include body of heater and subsystem, it is characterized in that: described body of heater docks by the stove tail of two fixed refining reverberatory furnaces the Large Copacity composition brass refining furnace combined with stove tail, two burner hearths are communicated with to get up formation burner hearth, the furnace wall mid-way at two ends, body of heater left and right is arranged with two groups of burner ports, correspondingly with often organizing burner port be provided with a firing system and oxygen supply airing system, often organize burner port and be equipped with three little burner ports in the distribution of falling isosceles triangle, middle little burner port height copper liquid level 0.6m level is installed, two, both sides little burner port height copper liquid level 0.9m is downward-sloping to be installed in assembling shape, the furnace wall of body of heater one end is provided with a high-order copper outlet and a low level copper outlet, two copper outlets all adopt water-cooled structure, high-order copper outlet exceeds furnace bottom face 400mm and arranges, and low level copper outlet is arranged lower than furnace bottom face, and each copper outlet is all corresponding is fitted with a set of cooling water recirculation system, in the middle part of described body of heater, furnace roof is provided with smoke outlet, correspondingly with smoke outlet is connected with fume exhaust system, the furnace wall of described body of heater side offers four reinforced service gates, the right and left that described reinforced service gate is positioned at smoke outlet respectively establishes two, described reinforced service gate local adopts the protection of steel construction water jacket, movable sealing baffle plate it is equipped with, petticoat pipe is equipped with above the outside of each reinforced service gate, each reinforced service gate also inserts copper liquid level from outside to inside and is provided with a reduction tube, every root reduction tube is externally connected with a reduction coal original washing powder quantitative control device, with the furnace wall of reinforced service gate the same side on be also provided with three slag-drip openings, three slag-drip openings one are distributed in middle part, two other is distributed in furnace wall two ends, along arranging lower than burner hearth internal copper liquid level 100mm under described slag-drip opening, each slag-drip opening local adopts the protection of steel construction water jacket, it is all equipped with movable sealing baffle plate, in the outer upper of each slag-drip opening, petticoat pipe is housed, all thermal baffle is housed in the front of each slag-drip opening, at each slag-drip opening externally to having slag chute, be provided with in the below of slag chute track of mucking haulage, track of mucking haulage is placed with slag waggon, be symmetrically installed with some sizing bricks being positioned at the furnace wall bottom, both sides above furnace bottom, every block sizing brick is all provided with a vent pipe structure, all be inserted with the permeability cell of a small-bore in each vent pipe structure, the outer end of described small-bore permeability cell is connected with for compressing wind system.
2. one according to claim 1 novel higher-grade composition brass refining furnace system, is characterized in that: described firing system comprises pure oxygen combustor, the control valve group of oxygen and Sweet natural gas and electrical control cubicles; It is corresponding with three little burner ports that described pure oxygen combustor is provided with three jet pipes, and be located at the mixing jet tube for Sweet natural gas and primary oxygen in the middle of furnace wall, two other is secondary oxygen spray pipe; Described control group valve comprises emergency cutting off valve, pressure regulator valve, flow control valve and under meter, and described flow control valve adopts PID to regulate.
3. one according to claim 1 novel higher-grade composition brass refining furnace system, it is characterized in that: the oxygen concentration more than 90% that described oxygen supply airing system provides, oxygen and gas pressure are more than 0.4MPa.
4. one according to claim 1 novel higher-grade composition brass refining furnace system, it is characterized in that: described water-cooled structure includes the copper mouth sizing brick arranged in furnace wall, build in the middle of copper mouth sizing brick and have circular copper mouth, outside described copper mouth sizing brick, closed assembly is provided with one piece of water-cooled copper oralia, run through in the middle of described water-cooled copper oralia and offer a circle hole shape copper outlet, align and arrange in the shape circular Tong Kou axis of building in brick of described circle hole shape copper outlet axis and copper mouth, a cooling-water duct is provided with around circle hole shape copper outlet in described water-cooled copper oralia, described cooling-water duct is connected with water inlet pipe and water outlet pipe, described water inlet pipe and water outlet pipe is connected with described cooling water recirculation system.
5. the one novel higher-grade composition brass refining furnace system according to claim 1 and 4, is characterized in that: described cooling water recirculation system includes working shaft, back water pump, cooling tower, backup diesel working shaft, pond and water-softening plant, described cooling water recirculation system pressure of supply water is greater than 0.2MPa.
6. one according to claim 1 novel higher-grade composition brass refining furnace system, is characterized in that: described fume exhaust system is by flue vertical shaft, spray cooling tower, bagroom, smoke exhaust fan and chimney composition.
7. one according to claim 1 novel higher-grade composition brass refining furnace system, is characterized in that: described four reinforced work every height 800mm, one of them reinforced service gate gate-width 1600mm, other three gate-width 1200mm.
8. one according to claim 1 novel higher-grade composition brass refining furnace system, it is characterized in that: described reduction coal original washing powder quantitative control device includes coal dust pot, a pressurising tracheae is equipped with on the top of coal dust pot, pressurising tracheae is provided with pressurising magnetic valve, a coal-feeding tube is provided with in the lower end of coal dust pot, coal-feeding tube is provided with magnetic valve of delivering coal, be connected with one in the lower end of coal-feeding tube and have axle spiral coal supply transfer roller, described have axle spiral coal supply transfer roller to adopt variable-frequency motor step-down gear to drive, described have the opening for feed of axle spiral coal supply transfer roller to be connected with coal-feeding tube, the discharge port end of described spiral coal supply transfer roller is connected with a compression airduct, described compression airduct one end is connected with described reduction tube, the compression airduct the other end one air-supply solenoid control, described pressurising magnetic valve, magnetic valve of delivering coal, air-supply magnetic valve and variable-frequency motor step-down gear are by an electrical control system centralized Control.
9. one according to claim 1 novel higher-grade composition brass refining furnace system, it is characterized in that: described vent pipe structure embeds and is arranged on furnace wall inside, each vent pipe structure includes the sizing brick being embedded in furnace wall inside, the oxidation-resistance permeability cell of a small-bore is equipped with in sizing brick, described permeability cell one end puts in burner hearth, the other end stretches out outside furnace wall, permeability cell becomes 5-10 ° of angle to be inclined upwardly to install with horizontal plane, the permeability cell outer end section of stretching out is set with a protecting cover, described protecting cover and furnace wall are fastenedly connected, and protecting cover and permeability cell are fastening by securing bolt, at protecting cover, also filler is filled with in the space of shaping between brick and furnace wall.
10. one according to claim 1 novel higher-grade composition brass refining furnace system, is characterized in that: the described compression wind system that supplies is made up of the gentle bag of air compressor machine, and described air compressor machine quantity 3-5, provides compress wind pressure to be greater than 0.4MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520278.1A CN104232929B (en) | 2014-10-08 | 2014-10-08 | A kind of higher-grade composition brass refining furnace system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520278.1A CN104232929B (en) | 2014-10-08 | 2014-10-08 | A kind of higher-grade composition brass refining furnace system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104232929A true CN104232929A (en) | 2014-12-24 |
| CN104232929B CN104232929B (en) | 2015-11-18 |
Family
ID=52221818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410520278.1A Active CN104232929B (en) | 2014-10-08 | 2014-10-08 | A kind of higher-grade composition brass refining furnace system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104232929B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197005A (en) * | 2016-08-31 | 2016-12-07 | 浙江大学宁波理工学院 | Refining furnace |
| CN108251657A (en) * | 2018-01-17 | 2018-07-06 | 绵阳铜鑫铜业有限公司 | A kind of refining furnace |
| CN108754176A (en) * | 2018-06-28 | 2018-11-06 | 大冶有色金属有限责任公司 | A kind of continuous refining furnace and the process that regeneration copper refining is carried out using the continuous refining furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201713555U (en) * | 2010-04-24 | 2011-01-19 | 大冶有色金属公司 | Combined type refining furnace for continuously producing mixed cropper regeneration casting anode plates |
| CN102560146A (en) * | 2012-02-29 | 2012-07-11 | 中国恩菲工程技术有限公司 | Scrap copper refining furnace |
-
2014
- 2014-10-08 CN CN201410520278.1A patent/CN104232929B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201713555U (en) * | 2010-04-24 | 2011-01-19 | 大冶有色金属公司 | Combined type refining furnace for continuously producing mixed cropper regeneration casting anode plates |
| CN102560146A (en) * | 2012-02-29 | 2012-07-11 | 中国恩菲工程技术有限公司 | Scrap copper refining furnace |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197005A (en) * | 2016-08-31 | 2016-12-07 | 浙江大学宁波理工学院 | Refining furnace |
| CN106197005B (en) * | 2016-08-31 | 2018-04-20 | 浙江大学宁波理工学院 | Compress control method in refining furnace |
| CN108251657A (en) * | 2018-01-17 | 2018-07-06 | 绵阳铜鑫铜业有限公司 | A kind of refining furnace |
| CN108251657B (en) * | 2018-01-17 | 2020-05-12 | 绵阳铜鑫铜业有限公司 | Refining furnace |
| CN108754176A (en) * | 2018-06-28 | 2018-11-06 | 大冶有色金属有限责任公司 | A kind of continuous refining furnace and the process that regeneration copper refining is carried out using the continuous refining furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104232929B (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2906510Y (en) | Horizontal continuous-charging scrap preheating device for electric arc steel smelting furnace | |
| CN102851518B (en) | Fubang oxygen-enriched side-blown bath copper smelting furnace and operation method thereof | |
| CN101344357A (en) | Rotary kiln and technique for processing composition brass or block shaped raw copper | |
| CN105238938A (en) | Three continuous furnace technology for continuous production of anode copper with copper concentrate | |
| CN103954133A (en) | Continuous fluxing charging device for medium frequency furnace | |
| CN102796875B (en) | Zinc leaching residue treatment unit and treatment process | |
| CN105441687A (en) | Dust recycling process and system for iron and steel plant | |
| CN103436703B (en) | Total-oxygen side-blown reduction smelting converter | |
| CN108866270A (en) | A kind of steelmaking equipment | |
| CN104232929B (en) | A kind of higher-grade composition brass refining furnace system | |
| CN101922861A (en) | Smelting furnace | |
| CN208472142U (en) | A kind of steelmaking equipment | |
| CN102121788A (en) | Smelting furnace | |
| CN205170895U (en) | Rotary kiln CO2 and argon gas are used for controlling means of converter smelting | |
| CN101644535A (en) | Smelting furnace | |
| CN201433222Y (en) | Internally-externally-heating sponge iron reduction device | |
| CN206235174U (en) | A kind of electric furnace flue gas adjusting means | |
| CN209537586U (en) | A kind of energy conservation and environmental protection reviver multicell metal smelting-furnace | |
| CN203065550U (en) | Oxygen enrichment side-blown molten-pool copper smelting furnace | |
| CN202090040U (en) | Copper smelting device | |
| CN103063011B (en) | Energy-saving environment-friendly high-blast-temperature cupola system equipment | |
| CN109518000A (en) | A kind of energy conservation and environmental protection reviver multicell metal smelting-furnace and processing method | |
| CN103063014B (en) | Energy-saving and environment-friendly cupola furnace | |
| CN102331169A (en) | Smelting furnace | |
| CN202182611U (en) | Smelting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |