CN101650122B - Novel multifunctional roasting reaction device - Google Patents
Novel multifunctional roasting reaction device Download PDFInfo
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- CN101650122B CN101650122B CN200810134664A CN200810134664A CN101650122B CN 101650122 B CN101650122 B CN 101650122B CN 200810134664 A CN200810134664 A CN 200810134664A CN 200810134664 A CN200810134664 A CN 200810134664A CN 101650122 B CN101650122 B CN 101650122B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 24
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 10
- 239000011707 mineral Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 239000003245 coal Substances 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
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- 238000001035 drying Methods 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- OQVYMXCRDHDTTH-UHFFFAOYSA-N 4-(diethoxyphosphorylmethyl)-2-[4-(diethoxyphosphorylmethyl)pyridin-2-yl]pyridine Chemical compound CCOP(=O)(OCC)CC1=CC=NC(C=2N=CC=C(CP(=O)(OCC)OCC)C=2)=C1 OQVYMXCRDHDTTH-UHFFFAOYSA-N 0.000 abstract description 2
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
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- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
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- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 235000011118 potassium hydroxide Nutrition 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 description 2
- QLOKJRIVRGCVIM-UHFFFAOYSA-N 1-[(4-methylsulfanylphenyl)methyl]piperazine Chemical compound C1=CC(SC)=CC=C1CN1CCNCC1 QLOKJRIVRGCVIM-UHFFFAOYSA-N 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
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- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
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- 238000001354 calcination Methods 0.000 description 1
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- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 230000005307 ferromagnetism Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
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- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
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- 238000010298 pulverizing process Methods 0.000 description 1
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- 159000000000 sodium salts Chemical group 0.000 description 1
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- 235000011152 sodium sulphate Nutrition 0.000 description 1
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
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- 239000011787 zinc oxide Substances 0.000 description 1
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- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a novel multifunctional roasting reaction device. The multifunctional roasting reaction device consists of a hot air sucking port, a hot air/material pipeline, a hopper, a burning furnace and a reactor consisting of a plurality of mutually independent cylindrical section modules, wherein the reactor is arranged in the hearth of the burning furnace. The reactor is arranged in the burning furnace, and the inside of the whole device integrates multifunctions of material conveying, preheating, drying, roasting, reaction and the like; the smoke of the burning furnace ensures the atmosphere of oxygen separation to greatly reduce the equipment investment in the link; and the reaction device can also maximumly utilize the smoke of the burning furnace so as to save energy and to be environmentally-friendly. The multifunctional roasting reaction device is suitable for preparing cement, hematites, gold ores, bauxites, metal sulfates, potassium manganate and the like.
Description
Technical field
The present invention relates to the treatment facility of raw mineral materials, specifically, is a kind of novel multifunctional roasting reaction device, and this device is a kind of multifunctional roasting reaction device that can strengthen roasting effect, save the energy.
Background technology
Roasting is not make fusing to material (like ore) heating, to change its chemical composition or physical property (like oxidation, reduction, dehydration, drying etc.).And the roasting technique that we are often referred to is meant: the course of reaction of carrying out under the condition of fusion does not take place in solid material at high temperature, oxidation, pyrolysis, reduction, halogenation etc. can be arranged, and is generally used for inorganic chemical industry and metallurgical industry.Roasting process has two types of doping and not dopings.
Not additivated roasting: also claim calcining, can be divided into by purposes: 1. decomposing ore, calcium oxide is processed in chemical process like lime stone, makes carbon dioxide simultaneously; 2. activated ore, purpose is to change the ore structure, makes it be easy to decompose, for example: with kaolin roasting dehydration, make its short texture porous, be easy to further processing aluminium oxide; 3. remove impurity, like desulfurization, remove organic matter and adsorbed water etc.; 4. crystal formation transforms, and makes it change crystal formation like roasting titanium dioxide, improves it and uses character.
Additivated roasting: additive can be gas or solid, and solid additive has the effect of flux concurrently, the material fusing point is reduced, with fast reaction speed.Difference by additive has polytype:
Oxidizing roasting: the roasting in oxygen of the solid material after the pulverizing, make useful component wherein be transformed into oxide, remove impurity such as volatile arsenic, antimony, selenium, tellurium simultaneously.In sulfuric acid industry, it is typical oxidizing roasting that pyrite burning prepares sulfur dioxide.Oxidizing roasting is used more extensively in the metallurgical industry, and for example: copper-sulphide ores, zinc sulfide ore obtain cupric oxide, zinc oxide through oxidizing roasting, obtain sulfur dioxide simultaneously.
Reduction roasting: in ore or salt, add reducing agent and carry out high-temperature process, reducing agent commonly used is a carbon.When producing high purity product, available hydrogen, carbon monoxide or methane are as the roasting reduction agent.For example: the oxygen deprivation nickel minerals is the water gas reduction under heating, can make di-iron trioxide major part wherein be reduced to tri-iron tetroxide, is reduced to ferrous oxide and metallic iron on a small quantity; The oxide of nickel, cobalt then is reduced to metallic nickel and cobalt.Because the di-iron trioxide in this process has weak magnetic, tri-iron tetroxide has ferromagnetism, utilizes this difference can carry out magnetic separation, so process is claimed magnetizing roast again.
Chloridising roasting: in mineral or salt, add chlorinating agent and carry out high-temperature process, make that some constitutional changes is the oxide of gaseous state or condensed state in the material, thereby separate with other components.Chlorinating agent can be with chlorine or chloride (like sodium chloride, calcium chloride etc.).For example: rutile adds chlorine and carries out chloridising roasting in fluid bed, generates titanium tetrachloride, can get titanium dioxide through further processing.And for example in the bauxite chemical process, add the roasting of charcoal (high-rank coals) powder moulding afterchlorinate and can make alchlor.If in chlorinating agent, add carbon granule, the precious metals mineral that make difficult choosing in the mineral change metal on carbon granule after chloridising roasting; And, use the beneficiation method enrichment subsequently attached on the carbon granule, process concentrate; Its grade and the rate of recovery all can improve, and are called the roasting of chlorination segregation.
Sulfating roasting: with sulfur dioxide is the roasting process of reactant, is generally used for the roasting of sulfide mine, and making metallic sulfide oxidation is sulfate soluble in water.If represent metal with Me, sulfating roasting mainly comprises processes:
2MeS+3O
2-→2MeO+2SO
2
For example: zincblende through sulfating roasting make zinc sulfate, copper sulfide makes copper sulphate etc. through sulfating roasting.
Basic roasting: with alkaline matters such as soda ash, caustic soda or lime stones is reactant, solid material is carried out a kind of alkaline hydrolysis process of high-temperature process.For example: potassium manganate is produced in pyrolusite and caustic potash roasting; Potassium chromate is produced in chromite and caustic potash roasting.
Sodium roasting: in solid material, add sodium agent such as proper amount of sodium chloride, sodium sulphate, the roasting afterproduct is a sodium salt soluble in water.For example: in the wet method vanadium extraction process, the fine grinding vanadium slag behind iron removal by magnetic separation, adds the sodium agent at the revolution roasting in kilns, and the trivalent vanadium in the slag is oxidized to the pentavalent vanadium.
The roasting process device therefor by the movement of solid material characteristic, can be divided into several types of fixed bed, moving bed and thermopnores; Form by its used heating furnace can be divided into reverberatory furnace, multiple hearth furnace, shaft furnace, rotary kiln, fluidized bed furnace, execute wind furnace etc.
The prerequisite of roasting is the heating to material, and this just relates to the problem of an efficiency of utilization.Current society, how energy-conservation the energy day by day becomes scarce resource, the forward position focus that has become society and science and technology.
Summary of the invention
The object of the invention is the shortcoming and deficiency in order to overcome above-mentioned existing device just, has proposed a kind of novel multifunctional roasting reaction device.This device can strengthen roasting effect, save the energy.
The present invention solves the technical scheme that its technical problem takes:
A kind of novel multifunctional roasting reaction device, the reactor of forming by hot blast suction inlet, hot blast/material pipe, hopper, combustion furnace, by a plurality of separate shell ring modules is formed, and reactor places in the combustion furnace burner hearth.
Described shell ring module is formed by connecting a little shell ring and a big shell ring, and the angle of little shell ring center line and big shell ring center line is advisable with 80～90 degree.Such angular range can guarantee the rotary fluid effect of material.Described degree is meant angle, but not radian.Each shell ring module connects mutually with the form that big shell ring connects the little shell ring of another module.
The prepreerence selection of angle of described little shell ring center line and big shell ring center line is 85 degree.
Outlet at described roasting reaction device also is provided with negative-pressure air fan.
A kind of method of roasted ore raw material is characterized in, uses above-mentioned roasting reaction device roasted ore raw material.
The method of roasted ore raw material is characterized in that, comprises following steps:
A. ore is worn into the ultra-fine powder pan feeding of particle diameter less than 38 μ m;
B. the CO that directly utilizes coal burn incompletely and raw mineral materials in burner hearth to decompose to produce is as reducing agent;
C. the high-temperature flue gas that utilizes the hot blast suction inlet directly in whole reactor imports combustion furnace, to produce forms oxygen barrier atmosphere, participates in reaction directly.
Reactor is placed directly in the combustion furnace burner hearth, has done following benefit like this:
One, fuel saving; Be placed directly in heating in the burner hearth, modes such as the conduction of comprehensive utilization heat, heat radiation absorb heat, improve the utilization rate of fuel greatly, reach the purpose of fuel saving, very environmental protection.
Two, be easy to insulation; Reactor is whole to be placed in the burner hearth, and the insulation of burner hearth is exactly the insulation to reactor, need not from the special insulation of new consideration to reactor.
Three, temperature control accurately, fast; The temperature of burner hearth is exactly the temperature of reactor when producing continuously, is exactly the adjusting to temperature of reactor to the adjusting of fire box temperature, has greatly reduced the retardance and the transmission length of control, make temperature control to reactor very quick with accurately.
Four, reduce investment outlay and the space; Because reactor is placed in the burner hearth, makes that whole system is convenient to construct, economical and efficient improves space availability ratio simultaneously.
Owing to adopted technique scheme, the present invention compared with existing device have following advantage and effect:
A, through main pipeline and reactor are built in the combustion furnace, whole device inner integrated multiple functions such as mass transport, preheating, drying, roasting, reaction, reach the purpose of saving the energy and equipment multifunction, miniaturization.Simultaneously, unitary device can realize the transformation from the material to the product, simplifies the complexity of production line greatly.
B, reactor is put into burner hearth; Through the burning of fuel, directly heat energy is passed to reactor, because reactor is in inside and outside full structure, maximum area heating status all the time; Fully utilize hot conduction and heat radiation and transmitted heat fast; Guarantee sintering temperature, significantly improved the thermal efficiency, reduced energy consumption and heat loss;
C, be in the reduction roasting of reducing agent with CO, the needed reducing agent of roasting can be chosen in and mix an amount of fuel when adding material, is provided by its CO that imperfect combustion produces in high temperature, also can be satisfied by the unspent CO of combustion furnace self.Thereby reduce CO equipment and firing equipment taking place, guarantee oxygen barrier atmosphere by the combustion furnace flue gas simultaneously, significantly reduce the equipment input in this link, also can utilize the flue gas of combustion furnace to greatest extent, saves the energy, economic environmental protection;
D, reactor of the present invention can guarantee increase material and reactant contact area and the operating path of the material that in limited space, extends, and augmentation of heat transfer and assurance reaction time can be guaranteed quick reason, the change reaction of material, thus realization scale quantification production;
E, place the terminal negative pressure induced wind machine of device, its role is to; The first, can guarantee the burning of combustion furnace; The second, can guarantee mineral grain formation of suspension flow in the air intake of tangential in roaster, thereby response path and reaction time are increased; The 3rd, hot blast sucting reaction device in the burner hearth is carried out to guarantee heat exchange effectively.Do not increase consersion unit when stating function in realization, reduce investment outlay greatly;
F, integrate material at hot blast suction line metastomium and get into pipeline, make the material can smooth delivery of power and play preheating and the effect of saving the space, make processing route the shortest, achieve many things at one stroke;
G, the present invention adopt material light face type fluidisation to carry; Can in reactor, quick roasting react; Thereby can be fast, a large amount of, continuity production, simple structure, number of devices reduce, realize easily that whole a large amount of industrialization duplicates simultaneously, market prospects are very wide.
H, the present invention adopt disposable direct completion such as burning, roasting, physical and chemical reaction, and processes such as heating, roasting and physical and chemical reaction are integrated in one, and bulk temperature is prone to control, therefore less demanding for fuel, adaptability is extensive, be suitable for gather materials on the spot, large-scale production.
I, because integrated level of the present invention is high, variable parameter is few, control is easy, so can be increasingly automated, practiced thrift operating cost greatly.
J, according to the needs of actual roasting, the temperature of once regulating combustion furnace can reach required roasting reaction temperature, control is simple, effectively, accurately, makes the whole piece technological process the most stable.
Description of drawings
Fig. 1 is the novel multifunctional roasting reaction device sketch map.
Fig. 2 is single reactor shell ring sketch map.The angle theta 1 of little shell ring center line and big shell ring center line all is 85 degree with θ 2.
Fig. 3 is the built-in sketch map of reactor (overlooking).
Description of reference numerals: 1. hot blast suction inlet; 2. hot blast/material pipe; 3. hopper; 4. lock wind pan feeding valve; 5. combustion furnace; 6. reactor; 7. negative-pressure air fan; 8. furnace wall; 9. little shell ring; 10. big shell ring.
The specific embodiment
As shown in Figure 1, the reactor 6 that the present invention forms by hot blast suction inlet 1, hot blast/material pipe 2, hopper 3, combustion furnace 5, by a plurality of separate shell ring modules is formed, and reactor 6 places in combustion furnace 5 burner hearths.Be provided with lock wind pan feeding valve 4 in hopper 3 bottoms, control inlet air and pan feeding.
Described shell ring module is formed by connecting at little tube 9 and one big tube 10 joints, and the angle of little shell ring center line and big shell ring center line is advisable with 80～90 degree, and present embodiment is 85 degree, and is as shown in Figure 2, and angle theta 1 is 85 degree with θ 2.Each shell ring module connects mutually with the form that big shell ring connects the little shell ring of another module.Outlet at described roasting reaction device also is provided with negative-pressure air fan 7.
As shown in Figure 3, reactor 6 places in combustion furnace 5 burner hearths, and combustion furnace 5 is provided with furnace wall 8.
Ore is worn into the ultra-fine powder pan feeding of particle diameter less than 38 μ m; The CO that directly utilizes coal burn incompletely and siderite in burner hearth to decompose to produce is as reducing agent; The high-temperature flue gas that utilizes the hot blast suction inlet directly in whole reactor imports combustion furnace, to produce forms oxygen barrier atmosphere, participates in reaction directly.
Adopt said method, following benefit arranged:
1: roaster is put into combustion furnace, through burning of coal, directly heat energy is passed to roaster in the combustion furnace, guaranteed sintering temperature, heat loss is little, and the thermal efficiency is high, and energy consumption reduces.
2: the reducing atmosphere of reaction needed is to be provided by the CO that the coal burn incompletely produces, and has reduced CO equipment and firing equipment take place.
3: at the device end negative pressure induced wind machine is arranged, can guarantee burning of coal on the one hand, can let mineral grain tangential air intake in roaster form suspension flow on the other hand, thereby response path and reaction time are increased, but consersion unit does not increase.
4: the mineral disposal ability is big, and continuity production capacity is strong, and equipment industrialization replication capacity is strong.
More than novel multifunctional roasting reaction device provided by the present invention has been carried out detailed introduction; Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, part all can change on the specific embodiment and range of application.In sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. novel multifunctional roasting reaction device is characterized in that: the reactor of forming by hot blast suction inlet, hot blast/material pipe, hopper, combustion furnace, by a plurality of separate shell ring modules is formed, and reactor places in the combustion furnace burner hearth.
2. novel multifunctional roasting reaction device according to claim 1 is characterized in that: described shell ring module is formed by connecting a little shell ring and a big shell ring, and the angle of little shell ring center line and big shell ring center line is 80～90 degree.
3. novel multifunctional roasting reaction device according to claim 2 is characterized in that: the angle of described little shell ring center line and big shell ring center line is 85 degree.
4. according to claim 1 or 2 or 3 described novel multifunctional roasting reaction devices, it is characterized in that: the outlet at described roasting reaction device also is provided with negative-pressure air fan.
5. the method for a roasted ore raw material is characterized in that, uses the described roasting reaction device roasted ore of claim 1 raw material.
6. the method for roasted ore raw material according to claim 5 is characterized in that, comprises following steps:
A. ore is worn into the ultra-fine powder pan feeding of particle diameter less than 38 μ m;
B. the CO that directly utilizes coal burn incompletely and raw mineral materials in burner hearth to decompose to produce is as reducing agent;
C. the high-temperature flue gas that utilizes the hot blast suction inlet directly in whole reactor imports combustion furnace, to produce forms oxygen barrier atmosphere, participates in reaction directly.
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| CN200810134664A CN101650122B (en) | 2008-08-15 | 2008-08-15 | Novel multifunctional roasting reaction device |
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| CN200810134664A CN101650122B (en) | 2008-08-15 | 2008-08-15 | Novel multifunctional roasting reaction device |
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| CN101650122B true CN101650122B (en) | 2012-09-05 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000212604A (en) * | 1999-01-20 | 2000-08-02 | Mitsubishi Materials Corp | Continuous sintering furnace and its operation |
| CN1570153A (en) * | 2004-05-12 | 2005-01-26 | 李振洪 | One and half step melting deacidizing iron-smelting method |
| CN201259366Y (en) * | 2008-08-15 | 2009-06-17 | 李柏荣 | Novel multifunctional calcining reaction device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000212604A (en) * | 1999-01-20 | 2000-08-02 | Mitsubishi Materials Corp | Continuous sintering furnace and its operation |
| CN1570153A (en) * | 2004-05-12 | 2005-01-26 | 李振洪 | One and half step melting deacidizing iron-smelting method |
| CN201259366Y (en) * | 2008-08-15 | 2009-06-17 | 李柏荣 | Novel multifunctional calcining reaction device |
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