CN202220184U - Device for preparing hot melted iron and byproducts thereof by utilizing red mud - Google Patents
Device for preparing hot melted iron and byproducts thereof by utilizing red mud Download PDFInfo
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- CN202220184U CN202220184U CN2011203411676U CN201120341167U CN202220184U CN 202220184 U CN202220184 U CN 202220184U CN 2011203411676 U CN2011203411676 U CN 2011203411676U CN 201120341167 U CN201120341167 U CN 201120341167U CN 202220184 U CN202220184 U CN 202220184U
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- diversion trench
- outlet
- red mud
- molten steel
- heating molten
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
A device for preparing hot melted iron and byproducts thereof by utilizing red mud comprises a rotary furnace, a diversion trench and a melting and separating furnace; the rotary furnace is provided with a smoke outlet and a discharge hole, the diversion trench is provided with a feeding hole and a slag outlet, and the feeding hole is communicated with the discharge hole; the head part of the diversion trench is provided with a branch gas gun; a hot melted iron outlet is arranged at the lower side of the head part of the diversion trench and is connected with a steel ladle or an iron casing machine; and the smelting and separating furnace is provided with a slag inlet communicated with the slag outlet and is also provided with a cement clinker outlet, a silicon titanium aluminum alloy outlet and a bottom outlet. The device for preparing the hot melted iron and the byproducts thereof by utilizing the red mud has the advantages that the problem of incapability of 'the removal of slag' with the blast furnace process can be solved without the mixing of a great amount of calcium compound or the application of coke, therefore, the cost is reduced remarkably; the problems of the land occupation of the red mud and the environmental protection can be solved due to recycling the poisonous red mud so as to obtain iron; in addition, the byproducts such as silicon titanium aluminum alloy, superheated steam, sodium salt, microlite powder and the like can be obtained; and the aims of zero discharge of solid pollutant, standard gas release, low carbon emission and environmental protection are achieved.
Description
Technical field
The utility model belongs to the Metal smelting technical field, is specifically related to a kind of device that utilizes red mud to produce heating molten steel and sub product.
Background technology
Red mud, its staple is: aluminum oxide 5%～25%; Red stone 30%～55%; Silicon oxide 5%～25%; Sodium oxide 3%～9%; Sodium salt 10%～15% burns; Titanium oxide, Natural manganese dioxide, quicklime etc. 5%～10%.It is bigger that it generally contains the red stone amount, and outward appearance is similar with redness of the skin or complexion earth, thereby gains the name; The contaminative waste residue of discharging when it is Aluminium industry extraction aluminum oxide, its pH value is very high, and the pH value of leach liquor is 12.1～13.0.In suitability for industrialized production, 1 ton of aluminum oxide of the every production of average, 1～2 ton of red mud of subsidiary generation.China is as the world the 4th big alumina producing state, and the red mud of annual discharging is up to tens million of tons, and about 7,000 ten thousand tons of the red mud of the annual generation in the whole world.The a large amount of red mud of annual constantly generation can not fully effectively utilize; Human's production, life are caused many-sided direct and indirect influence; So reduce the output and the harm of red mud to greatest extent, realization by all kinds of means, the resource utilization of quantity is extremely urgent greatly.Owing to red mud is not still had effective industrialized treatment method both at home and abroad before this, though developed country also mostly be to enter marine or store up.China's relevant industries generally can only be stored up in the past, have both taken a large amount of soils, again soil, water source, atmosphere etc. are polluted.It is generally acknowledged that sodium salt content is that 30～400mg/L is the suitable scope at public water source, and the sodium salt degree of wastewater from red mud is up to 26348mg/L, the wastewater from red mud of high sodium salt degree like this gets into water body, and its pollution is self-evident.For solving this difficult problem; People once attempted to use blast furnace process, magnetic method (comprising the superconducting magnetic separation method) or flotation process; Extract the iron in the red mud, and " digestion " red mud of storing up in a large number by this, still; Because the iron in the red mud exists with states such as deep oxidation iron, molysite, so magnetic method (comprising the superconducting magnetic separation method), gravity separation method or flotation process can't be extracted iron wherein at all; And blast furnace process, because wherein contain more a large amount of aluminium, titanium and compound thereof, and since the unusual thickness of these materials, the carrying out that has not only stoped the gas-solid liquid phase reaction in the blast furnace, and make that blast furnace " scum " can not; Though can mix a large amount of calcium containing compounds to solve " thickness " problem, just increased production cost greatly, there has not been benefit basically, lost practicality, so no longer be used.
The utility model content
The technical problem that the utility model will solve is: the deficiency that overcomes prior art; A kind of device that utilizes red mud to produce heating molten steel and sub product is provided; It both can solve the problem that magnetic method in the prior art (comprising the superconducting magnetic separation method), gravity separation method or flotation process can't be chosen at all; Also can solve blast furnace process " scum " can not problem, make red mud resource utilization toxic, that pollute to obtain fe; And reach the solid pollutant zero release.
The utility model solves the technical scheme that its technical problem adopted: a kind of device that utilizes red mud to produce heating molten steel and sub product; Comprise rotary kiln; Said rotary kiln afterbody is provided with exhanst gas outlet, head is provided with discharge port; It is characterized in that: also comprise a diversion trench, said diversion trench afterbody is provided with feeding mouth, head is provided with slag notch, and said feeding mouth is communicated with said discharge port; At said diversion trench head, at least one gas gun is installed, the muzzle of said gas gun is towards blanking place of said diversion trench afterbody; The said feeding mouth while is as the air outlet of diversion trench;
Said diversion trench head downside is provided with the heating molten steel outlet; Said heating molten steel outlet is lower than said slag notch.
Preferably, the feeding mouth of said diversion trench and the discharge port of said rotary kiln are through the channel connection that is built into by refractory materials.
Preferably, at said diversion trench head, three gas guns are installed, the muzzle of said gas gun is all towards blanking place of said diversion trench afterbody.
Preferably, the different heights place in the said diversion trench afterbody left and right sides is respectively arranged with at least one gas gun, and the muzzle of said gas gun is all towards blanking place of said diversion trench afterbody.
Preferably, also comprise the molten stove that divides, stove top was provided with into cinder notch in said molten minute, and said slag notch of going into cinder notch and said diversion trench is through being built into channel connection by refractory materials; Saidly go into cinder notch simultaneously as the molten air outlet of dividing stove.
Preferably, the exhanst gas outlet of said rotary kiln is communicated with through a waste heat boiler and water curtain dedusting sodium salt suction tower.
Preferably, said heating molten steel outlet connects a ladle or a pig-casting machine.
Preferably, the stove middle part was provided with cement clinker outlet in said molten minute, and the bottom is provided with silicon titanium aluminum alloy outlet, and the bottom is provided with an outlet at bottom.
Compared with prior art, the beneficial effect of the utility model is: it needn't mix a large amount of calcium containing compounds, also must not use coke, just can solve blast furnace process in the prior art " scum " can not problem, reduced production cost widely; To make deleterious red mud resource utilization, and obtain fe, its recovery can reach more than 99%, has solved red mud occupation of land, problem of environment pollution caused; Can also obtain such as sub products such as silicon titanium aluminum alloy, superheated vapour, sodium salt, crystallite stone flours, and make the large-scale industrial production of float glass process microlite become possibility.And whole process of production reaches the solid pollutant zero release, gas qualified discharge, real low-carbon emission, environmental protection.It is a big good recycling economy project.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two.
Be labeled as among the figure:
1, rotary kiln; 11, exhanst gas outlet; 12, discharge port; 13, waste heat boiler; 14, water curtain dedusting sodium salt is inhaled tower; 2, diversion trench; 21, feeding mouth; 22, slag notch; 23, gas gun; 24, heating molten steel outlet; 25, ladle; 26, pig-casting machine; 3, the molten stove that divides; 31, go into cinder notch; 32, cement clinker outlet; 33, silicon titanium aluminum alloy outlet; 34, outlet at bottom.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model done further describing:
Embodiment one
As shown in Figure 1, during installation, rotary kiln 1, diversion trench 2, the molten residing position of stove 3 threes of dividing reduce successively, and their each own heads or bottom are all low with respect to the height on its afterbody or top, that is: the head of rotary kiln 1 is lower slightly than its afterbody; The afterbody of diversion trench 2 is lower than the head of rotary kiln 1, but is higher than the head of diversion trench 2; The molten top of stove 3 of dividing is lower than the head of diversion trench 2, but is higher than the molten bottom of dividing stove 3.
A kind of device that utilizes red mud to produce heating molten steel and sub product; Comprise rotary kiln 1, diversion trench 2, the molten stove 3 that divides; Said rotary kiln 1 afterbody is provided with exhanst gas outlet 11, head is provided with discharge port 12, and the exhanst gas outlet 11 of said rotary kiln 1 is inhaled tower 14 through a waste heat boiler 13 and a water curtain dedusting sodium salt and is communicated with; Said diversion trench 2 afterbodys are provided with feeding mouth 21, head is provided with slag notch 22; The feeding mouth 21 of said diversion trench 2 afterbodys and the channel connection of discharge port 12 through being built into of said rotary kiln 1 head by refractory materials, said 21 whiles of feeding mouth are as the air outlet of diversion trench 2;
At said diversion trench 2 heads, three gas guns 23 are installed, the different heights place in the said diversion trench 2 afterbody left and right sides is respectively arranged with a gas gun 23, and the muzzle of said gas gun 23 is all towards blanking place of the feeding mouth 21 of said diversion trench 2 afterbodys;
Said diversion trench 2 head downsides are provided with heating molten steel outlet 24, and said heating molten steel outlet 24 is lower than the slag notch 22 of said diversion trench 2 heads; Said heating molten steel outlet 24 connects ladle 25;
Stove 3 tops were provided with into cinder notch 31 in said molten minute, and said slag notch 22 of going into cinder notch 31 and said diversion trench 2 is through being built into channel connection by refractory materials; Saidly go into cinder notch 31 simultaneously as the molten air outlet of dividing stove 3;
The stove middle part was provided with cement clinker outlet 32 in said molten minute, and the bottom is provided with silicon titanium aluminum alloy outlet 33, and the bottom is provided with an outlet at bottom 34.
Embodiment two
As shown in Figure 2, the heating molten steel outlet 24 of said diversion trench 2 head downsides connects pig-casting machine 26; Other all with embodiment one in identical.
The working process of the utility model is following:
Like Fig. 1, shown in 2, according to the ratio of weight percent 1: 0.05～0.35: 0.2～0.5, get red mud, lime, coal, and they are mixed, to process mixed raw material and join in the rotary kiln 1, temperature is at 800～1460 degree Celsius in the rotary kiln 1; Mixed raw material through 2～10 hours, is dried in rotary kiln 1, prereduction, generates the reducing material that is the semi-melting state; From the temperature of afterbody to head, edge up to 1460 degree in the rotary kiln 1 from 800 degree Celsius; With the discharge port 12 of above-mentioned reducing material,, enter in the diversion trench 2 through the feeding mouth 21 of diversion trench 2 by rotary kiln 1; Said 21 whiles of feeding mouth are as the air outlet of diversion trench 2; At said diversion trench 2 heads three gas guns 23 have been installed; Different heights place in the said diversion trench 2 afterbody left and right sides; Be provided with a gas gun 23 respectively, the muzzle of all gas guns 23 all towards blanking place of the feeding mouth 21 of said diversion trench 2 afterbodys, carries out jet, combustion-supporting to reducing material; Temperature is at 1450～1700 degree Celsius in the diversion trench 2, and reducing material through 1～4 hour, carries out fusion in diversion trench 2, slag iron separates; The slag on upper strata is discharged by slag notch 22, and the heating molten steel of lower floor is flowed out by heating molten steel outlet 24; Effusive heating molten steel gets into ladle 25 or pig-casting machine 26;
If in the used red mud, the content of titanium aluminium is higher, just adopts following method: by the slag that the slag notch 22 of diversion trench 2 is discharged, the cinder notch 31 of going into of the molten branch of warp stove 3 gets in the molten branch stove 3, and temperature are made as 2250～2400 degree Celsius in the molten branch stove 3; Add metallic reducing agent, kept 30～100 minutes; Divide the cement clinker outlet 32 of stove 3 to obtain cement clinker by molten, divide the silicon titanium aluminum alloy outlet 33 of stove 3 to obtain the silicon titanium aluminum alloy by molten;
If in the used red mud, the content of titanium aluminium is lower, just adopts following method: by the slag that the slag notch 22 of diversion trench 2 is discharged, the cinder notch 31 of going into of the molten branch of warp stove 3 gets in the molten branch stove 3, and temperature are made as 1400～1700 degree Celsius in the molten branch stove 3; Add finings, kept 30～120 minutes; Obtain the crystallite stone flour by the molten outlet at bottom 34 of stove 3 that divides;
The flue gas that gives off from the exhanst gas outlet 11 of rotary kiln 1 afterbody is via obtaining superheated vapour behind the waste heat boiler 13; Inhale tower 14 via water curtain dedusting sodium salt again and absorb waste gas such as sulfur in smoke, fluorine, arsenic, make it to be dissolved in and contain the sodium sodium salt property aqueous solution, generated the mixing liquid of Sodium sulfhydrate, Sodium Fluoride, Sodium Silicofluoride 98min, sodium arseniate.
The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technical scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of the utility model technical scheme according to the technical spirit of the utility model.
Claims (8)
1. device that utilizes red mud to produce heating molten steel and sub product; Comprise rotary kiln; Said rotary kiln afterbody is provided with exhanst gas outlet, head is provided with discharge port; It is characterized in that: also comprise a diversion trench, said diversion trench afterbody is provided with feeding mouth, head is provided with slag notch, and said feeding mouth is communicated with said discharge port; At said diversion trench head, at least one gas gun is installed, the muzzle of said gas gun is towards blanking place of said diversion trench afterbody; The said feeding mouth while is as the air outlet of diversion trench;
Said diversion trench head downside is provided with the heating molten steel outlet; Said heating molten steel outlet is lower than said slag notch.
2. the device that utilizes red mud to produce heating molten steel and sub product according to claim 1 is characterized in that: the feeding mouth of said diversion trench and the discharge port of said rotary kiln, and through the channel connection that is built into by refractory materials.
3. the device that utilizes red mud to produce heating molten steel and sub product according to claim 2 is characterized in that: at said diversion trench head, three gas guns are installed, the muzzle of said gas gun is all towards blanking place of said diversion trench afterbody.
4. according to the arbitrary described device that utilizes red mud to produce heating molten steel and sub product of claim 1 to 3; It is characterized in that: different heights place in the said diversion trench afterbody left and right sides; Be respectively arranged with at least one gas gun, the muzzle of said gas gun is all towards blanking place of said diversion trench afterbody.
5. the device that utilizes red mud to produce heating molten steel and sub product according to claim 4; It is characterized in that: also comprise a molten stove that divides; Stove top was provided with into cinder notch in said molten minute, and said slag notch of going into cinder notch and said diversion trench is through being built into channel connection by refractory materials; Saidly go into cinder notch simultaneously as the molten air outlet of dividing stove.
6. the device that utilizes red mud to produce heating molten steel and sub product according to claim 5 is characterized in that: the exhanst gas outlet of said rotary kiln is inhaled tower through a waste heat boiler and a water curtain dedusting sodium salt and is communicated with.
7. the device that utilizes red mud to produce heating molten steel and sub product according to claim 6 is characterized in that: said heating molten steel outlet connects a ladle or a pig-casting machine.
8. the device that utilizes red mud to produce heating molten steel and sub product according to claim 7 is characterized in that: the stove middle part was provided with cement clinker outlet in said molten minute, and the bottom is provided with silicon titanium aluminum alloy outlet, and the bottom is provided with an outlet at bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203411676U CN202220184U (en) | 2011-09-04 | 2011-09-04 | Device for preparing hot melted iron and byproducts thereof by utilizing red mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203411676U CN202220184U (en) | 2011-09-04 | 2011-09-04 | Device for preparing hot melted iron and byproducts thereof by utilizing red mud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202220184U true CN202220184U (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203411676U Expired - Lifetime CN202220184U (en) | 2011-09-04 | 2011-09-04 | Device for preparing hot melted iron and byproducts thereof by utilizing red mud |
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| CN (1) | CN202220184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344983A (en) * | 2011-09-04 | 2012-02-08 | 胡长春 | Device for preparing hot molten iron and byproducts by using red mud |
-
2011
- 2011-09-04 CN CN2011203411676U patent/CN202220184U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344983A (en) * | 2011-09-04 | 2012-02-08 | 胡长春 | Device for preparing hot molten iron and byproducts by using red mud |
| WO2013029448A1 (en) * | 2011-09-04 | 2013-03-07 | Hu Changchun | Device for making hot molten iron and by-product by using red mud |
| CN102344983B (en) * | 2011-09-04 | 2013-08-28 | 胡长春 | Device for preparing hot molten iron and byproducts by using red mud |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120516 Effective date of abandoning: 20130828 |
|
| RGAV | Abandon patent right to avoid regrant |