CN110396606A - A kind of flash metallurgy gas package integral supply system and method for mixing - Google Patents
A kind of flash metallurgy gas package integral supply system and method for mixing Download PDFInfo
- Publication number
- CN110396606A CN110396606A CN201910836873.9A CN201910836873A CN110396606A CN 110396606 A CN110396606 A CN 110396606A CN 201910836873 A CN201910836873 A CN 201910836873A CN 110396606 A CN110396606 A CN 110396606A
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- China
- Prior art keywords
- supply system
- flash
- block
- package integral
- integral supply
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/0047—Smelting or converting flash smelting or converting
Abstract
The invention provides a kind of flash metallurgy gas package integral supply system, including vaporizer at the top of flash furnace reaction tower is arranged in, vaporizer coal gas produced is introduced the inlet channel of reaction tower, the shunt block for being arranged in the feeder channel of inlet channel periphery and being correspondingly arranged at below inlet channel.The invention increases coal gas system relative to the existing Flash Smelting Furnace charging system smelted for copper sulfurized ore, reducing gas necessary to being restored with production, and it is ingenious by lifting block, disperse coal gas and miberal powder, is sufficiently mixed gas-solid, to improve reaction efficiency.
Description
Technical field
The invention belongs to flash metallurgical technology field, supplies system more particularly, to a kind of flash metallurgy gas package integral
System and method for mixing.
Background technique
The invention of flash metallurgical technology so far, is industrially only used for the smelting of metal sulfide, does not there is metal smelting oxygen also
Change the case of mine.Below by taking Flash Microcontroller as an example, the simple flash smelting process for introducing lower metal sulfide: Flash Microcontroller technique
It is that powdery copper sulfide concentrate after drying sprays into Flash Smelting Furnace after concentrate burner and oxygen-enriched air are sufficiently mixed, it is anti-in high temperature
It answers and carries out thermal dissociation and oxidation reaction in tower, make iron oxidation in part in copper concentrate and slag making removes, the higher matte of output cupric.
Since sulfide and oxygen reaction can release a large amount of heat, so need not again additionally be molten bath additional heat, it need to only spray into and contain
Carrier of oxygen.Among these, nozzle is the critical equipment of flash smelting technique, main function be sprayed into reaction tower it is oxygen-enriched and
Miberal powder, meanwhile, enable miberal powder adequately disperse in reaction tower space, so that gas-solid be enable efficiently to mix, improves space and smelt
Efficiency.
The conventional smelting process of metal oxide ore is at high temperature using the metal oxygen in the reducing agents such as C or CO reduction mineral
Compound, and generally amount containing S is extremely low in metal oxide ore, is applied to metal oxide ore such as iron if flash smelting technique is considered to expand
The smelting of mine, then must be provided for reaction tower space reducing gas and smelt needed for heat, while must also make be added miberal powder with
Reducing gas adequately mixes, and is conventionally used to the feed of sulphide ore smelting flash furnace and is necessarily unable to satisfy to gas system above-mentioned
Demand.Thus, if wanting Flash Smelting technique to expand is applied to metal smelting oxide ore, develop a set of to gas, feed and dispersion
The system of material is a urgent problem to be solved.
Summary of the invention
In view of this, the invention is intended to overcome above-mentioned defect existing in the prior art, a kind of flash metallurgy is proposed
Gas package integral supply system.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of flash metallurgy gas package integral supply system, comprising:
Vaporizer is arranged at the top of reaction tower；
Vaporizer coal gas produced is introduced reaction tower by inlet channel；
Feeder channel is arranged in inlet channel periphery；
Shunt block is correspondingly arranged at below inlet channel.
Further, the spray gun or jet pipe that raw material and gasifying agent are sprayed into vaporizer are provided on vaporizer.
Further, the inlet channel is made of the material of heat resistant and wear resistant, and length is less than 0.8 meter.
Further, the inlet channel section is circle, and feeder channel section is the annular on the outside of inlet channel.
Further, reaction tower space is accessed in described feeder channel one end, and the other end connects charging gear, passes through charging gear
Miberal powder is supplied into reaction tower.
Further, reaction inner wall of tower is fixed in the shunt block lifting or vaporizer is fixed in lifting.
Further, the shunt block is lifted by hoist cable, and is driven by driving equipment.
Further, the shunt block is frustum cone structure, and bottom section product is greater than the sectional area at top.
Further, the shunt block is equipped with several air flues, and described air flue one end is another in shunt block top opening
End is in shunt block sidewall opening.
Further, the shunt block is equipped with several lines of rabbet joint arranged vertically, and the line of rabbet joint upper end is in shunt block side
Wall opening, lower end is in shunt block bottom opening.
Further, a method of carrying out mixing, mixing step using the flash metallurgy gas package integral supply system
It is as follows:
S1 sprays into coal dust and gasifying agent into vaporizer by the spray gun being arranged on vaporizer；
S2, the high temperature and pressure coal gas produced in above-mentioned steps spray downwards from inlet channel, after shunt block around
It shunts；
S3 is continuously added to granular material to feeder channel by charging gear, and powder generates lateral after shunt block
Component velocity, so that the powder of disperse is fully mixed with coal gas of high temperature.
Compared with the existing technology, the invention has the advantage that
The invention increases coal gas system relative to existing sulphide ore Flash Smelting charging system, with production
Reducing gas necessary to the oxide ore of reducing metal, and it is ingenious by lifting block, disperse coal gas and miberal powder, keeps gas powder sufficiently mixed
It closes, to improve reaction efficiency.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.In
In attached drawing:
Fig. 1 is the structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram in the invention at shunt block；
Fig. 3 is the structural schematic diagram that the shunt block of air flue is provided in the invention embodiment；
Fig. 4 is the structural schematic diagram that the shunt block of the line of rabbet joint is provided in the invention embodiment；
Fig. 5 is intake passage structure schematic diagram in the invention embodiment；
Fig. 6 is feeder channel structural schematic diagram in the invention embodiment.
Description of symbols:
1- reaction tower；2- vaporizer；3- inlet channel；4- feeder channel；5- shunt block；6- hoist cable；7- air flue；8- slot
Seam；9- vertical section；The lateral part 10-.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
Below with reference to embodiment come the present invention will be described in detail create.
A kind of flash metallurgy gas package integral supply system, as shown in Figures 1 to 4, comprising:
Reaction tower 1；
Vaporizer 2 is arranged at the top of reaction tower；
Vaporizer coal gas produced is introduced reaction tower by inlet channel 3；
Feeder channel 4 is arranged in inlet channel periphery；
Shunt block 5 is correspondingly arranged at below inlet channel.
The spray gun or jet pipe that raw material and gasifying agent are sprayed into vaporizer are provided on vaporizer.Raw material therein be coal or
Coke, gasifying agent therein are one of oxygen (such as air, oxygen-enriched or industrial pure oxygen), vapor or a variety of.
Above-mentioned inlet channel is made of the material of heat resistant and wear resistant, and length can effectively prevent coal gas process less than 0.8 meter
Transhipment thermal losses over long distances is serious.
Reaction tower space is accessed in above-mentioned feeder channel one end, and the other end connects charging gear, by charging gear to reaction
Miberal powder is supplied in tower.
In an alternative embodiment, above-mentioned inlet channel section is circle, and feeder channel is arranged in inlet channel
Outside, can be adjacent with inlet channel, and also non-conterminous, quantity is unlimited, sets according to production needs, can be 1,2 or more
It is a, as shown in figure 5, the outside of inlet channel 3 is provided with several feeder channels 4.
Certainly, feeder channel can also be is constituted by being sleeved on several layers of peripheral tube on the outside of inlet channel, and cross section is
Cirque structure around inlet channel periphery, as shown in fig. 6, innermost layer is inlet channel, in most inner side peripheral tube and air inlet
Several feeder channels are formed between channel and between each peripheral tube, feeder channel, that is, peripheral tube quantity is unlimited, according to reality
It needs to design.
Above-mentioned shunt block is in such a way that lifting is fixed.Lifting is fixed generally using several high temperature resistants, wear-resisting, corrosion-resistant
Material soft hoist cable 6 be made be fixed, shaft that can also be rigid made of similar material is supported or solid
It is fixed, it is also possible to being used in mixed way for the two.One end of hoist cable connects shunt block, and the other end can connect such as hoist engine etc
Driving equipment, by driving equipment stretch the adjustable shunt block of hoist cable position and angle.In addition, shunt block is hung
Filling fixed form, there are many selection, hoist cable or rigid shaft one end to connect shunt block, and another section can be fixed on Flash Smelting Furnace
On reaction tower furnace wall, it can also lift and be fixed on vaporizer furnace wall, those skilled in the art can carry out according to actual needs
Selection.
The main function of shunt block is first is that dispersion miberal powder, after so that miberal powder is entered reaction tower, can sufficiently mix with reaction gas
Splice grafting touching；Second is that blocking the high temperature and pressure coal gas of vaporizer production, reducing the pressure impacted under gas flow and making coal gas to four
Week shunts, to extend Gas Flow and miberal powder in reaction tower space residence time.
Shunt block is lifted on the underface of inlet channel, up-narrow and down-wide, and the diameter of shunt block top cross-section is slightly larger
In the outlet diameter of inlet channel, the diameter of bottom section is slightly larger than the outer diameter of feeder channel outlet annular, is designed in this way
It can guarantee that the high pressure reduction air-flow of vaporizer production after shunt block stops, flows around, forms reaction tower space disorderly
Flow field extends the fall time of miberal powder, meanwhile, and guarantee that the miberal powder being added from feeding-passage can fall in the taper of shunt block
Side makes miberal powder obtain good dispersion effect.
In an alternative embodiment, above-mentioned shunt block is frustum cone structure, and bottom section product is greater than cutting for top
Area.It is mainly used for stopping the gas sprayed from vaporizer at the top of rotary table, makes high pressure draught straight down to reaction tower four
All sides shunts, and plays certain depressurization, and there is constant slope circular conical surface in the side of rotary table, when falling within the conical surface under miberal powder
When, miberal powder can generate radially outer speed, to scatter on the direction of horizontal radial.As needed, shunt block can also
To be the other shapes except rotary table, the shapes such as elliptical table, more terrace with edges.
In an alternative embodiment, above-mentioned shunt block is equipped with several air flues, and air flue one end is on shunt block top
Portion's opening, the other end are not limited to straight tubular, are also possible to camber line in shunt block sidewall opening, the shape of air flue.Air flue
In the generally oblique top in the direction of shunt block sidewall opening, such as perpendicular to side wall, as shown in figure 3, can make to fall in side in this way
The miberal powder of wall is blown obliquely upward by high pressure draught, increases miberal powder in the fall time in space, and improve the spread.It is logical from air inlet
After the high temperature and pressure coal gas that road is blown into encounters shunt block, there is part coal gas to enter each air flue from the top of shunt block, then
It is sprayed from the side of shunt block, blows to the miberal powder for falling to shunt block side, make miberal powder to the horizontal direction on the outside of block
Upper further dispersion, improves the mixing efficiency of gas-solid.In addition, air flue is usually mutually disconnected, also make in some sense
Gas Flow straight down is further separated into the horizontal gas flow of shallow bid.
In an alternative embodiment, above-mentioned shunt block is equipped with several lines of rabbet joint arranged vertically, on the line of rabbet joint
End is in shunt block sidewall opening, and lower end is in shunt block bottom opening.Miberal powder falls on shunt block side, In from feeding-passage
When oblique lower slider, there is part miberal powder that can leak into the line of rabbet joint, fall into the lower space of shunt block, to make to further increase mine
The spread of powder improves the utilization rate for smelting space.Width, spacing and the shunt block inclined-plane appropriate for choosing the line of rabbet joint
Length, uniformly scatter during miberal powder can be made to fall into reaction tower space.
It should be noted that air flue, the line of rabbet joint can select an arrangement, both can also be set simultaneously in shunt block certainly
Structure only need to guarantee that air flue is mutually staggered with the line of rabbet joint, is not interpenetrated, respectively play corresponding function, will not generate dry
It disturbs.
When system works, by the spray gun being arranged on vaporizer sprayed into vaporizer coal dust and gasifying agent (oxygen or/and
Water vapour), the coal gas of high temperature and pressure is generated (mainly containing CO and H2), it is sprayed downwards from inlet channel, in the shunting for encountering lifting
After block, shunt around, meanwhile, granular material is continuously added to feeder channel by charging gear, has fallen within a constant inclination
The side of the shunt block at angle generates lateral component velocity, and powder is made to obtain sufficient disperse, is able to adequately mix with coal gas
Splice grafting touching, to obtain quick reduction melting.
The invention increases coal gas system relative to the existing Flash Smelting Furnace charging system smelted for copper sulfurized ore
System, to produce reducing gas necessary to the oxide ore of reducing metal, and it is ingenious by lifting block, disperse coal gas and miberal powder, makes
Gas-solid is sufficiently mixed, to improve reaction efficiency.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (10)
1. a kind of flash metallurgy gas package integral supply system characterized by comprising
Vaporizer is arranged at the top of flash furnace reaction tower；
Vaporizer coal gas produced is introduced reaction tower by inlet channel；
Feeder channel is arranged in inlet channel periphery；
Shunt block is correspondingly arranged at below inlet channel.
2. a kind of flash metallurgy gas package integral supply system according to claim 1, it is characterised in that: the air inlet is logical
Road length is less than 0.8 meter.
3. a kind of flash metallurgy gas package integral supply system according to claim 1, it is characterised in that: the air inlet is logical
Road section is circle, and the section of loading channel is annular.
4. a kind of flash metallurgy gas package integral supply system according to claim 1, it is characterised in that: the feed is logical
Reaction tower space is accessed in road one end, and the other end connects charging gear, supplies miberal powder into reaction tower by charging gear.
5. a kind of flash metallurgy gas package integral supply system according to claim 1, it is characterised in that: the shunting gear
Block is fixed using lifting.
6. a kind of flash metallurgy gas package integral supply system according to claim 1 or 5, it is characterised in that: described point
It flows block to lift by hoist cable, and is driven by driving equipment.
7. a kind of flash metallurgy gas package integral supply system according to claim 1, it is characterised in that: the shunting gear
Block is frustum cone structure, and bottom section product is greater than the sectional area at top.
8. a kind of flash metallurgy gas package integral supply system according to claim 1, it is characterised in that: the shunting gear
Block is equipped with several air flues, and described air flue one end is in shunt block top opening, and the other end is in shunt block sidewall opening.
9. a kind of flash metallurgy gas package integral supply system according to claim 1, it is characterised in that: the shunting gear
Block is equipped with several lines of rabbet joint arranged vertically, and the line of rabbet joint upper end is in shunt block sidewall opening, and lower end is in shunt block bottom
Opening.
10. a kind of method for carrying out mixing using flash metallurgy gas package integral supply system described in claim 1, feature
It is, steps are as follows for mixing:
S1 sprays into coal dust and gasifying agent into vaporizer by the spray gun being arranged on vaporizer；
S2, the high temperature and pressure coal gas produced in above-mentioned steps are sprayed downwards from inlet channel, are shunted around after shunt block；
S3 is continuously added to granular material to feeder channel by charging gear, and powder generates lateral point speed after shunt block
Degree, so that the powder of disperse is fully mixed with coal gas of high temperature.
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| CN201910836873.9A CN110396606A (en) | 2019-09-05 | 2019-09-05 | A kind of flash metallurgy gas package integral supply system and method for mixing |
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| CN201910836873.9A CN110396606A (en) | 2019-09-05 | 2019-09-05 | A kind of flash metallurgy gas package integral supply system and method for mixing |
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