CN204298254U - The device of mill tailings slag wool production is equipped with melt blast-furnace slag - Google Patents
The device of mill tailings slag wool production is equipped with melt blast-furnace slag Download PDFInfo
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- CN204298254U CN204298254U CN201420696424.1U CN201420696424U CN204298254U CN 204298254 U CN204298254 U CN 204298254U CN 201420696424 U CN201420696424 U CN 201420696424U CN 204298254 U CN204298254 U CN 204298254U
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Abstract
The utility model relates to the device that a kind of melt blast-furnace slag is equipped with mill tailings slag wool production, comprises the electric furnace one, electric furnace two, whizzer and the cotton collecting machine that connect successively, is equipped with nitrogen injection mouth bottom described electric furnace one and electric furnace two.Adjusting material feeding mouth is established on described electric furnace one top, and bottom sets out cinder notch connects electric furnace two opening for feed by slag runner; Electric furnace two bottom is provided with slag notch and connects whizzer by slag runner, is connected between whizzer with cotton collecting machine by airduct.Compared with prior art, the beneficial effects of the utility model are: the potential heat energy 1) efficiently utilizing melt blast-furnace slag; 2) cupola furnace energy consumption is avoided large, the shortcoming of high pollution; 3) adjusting material selects mill tailings, not only reduces operation cost, avoids the wasting of resources, efficiently solves a process difficult problem for mill tailings; 4) strengthen modified effect, melt modified evenly; 5) modified rear acidity system is between 1.0 ~ 2.2, can produce external wall outer insulation mineral wool product for building.
Description
Technical field
The utility model relates to metallurgical slag and utilizes and Slag Wool Production field, particularly relates to the device that a kind of melt blast-furnace slag is equipped with mill tailings slag wool production.
Background technology
Slag wool take industrial slag as main raw material, and add with other materials through remelting, fibrosis and the inorganic fibre made, can be made into the various goods such as plate, pipe, felt, there is the multiple functions such as thermal insulation, insulation, fire prevention, anticorrosion, humidity, sound absorption, antidetonation, be widely used in the fields such as building, industrial equipment and the vehicles, as heat insulation in building exterior wall heat preserving, interior wall fire-proof sound insulation, Industrial Stoves and piping insulation, boats and ships etc.
Existing mineral wool production technique becomes block blast-furnace slag to be main raw material mainly with slow cooling greatly, and is equipped with a certain amount of quartzite or other rocks to adjust acidity quotient, by making inorganic fibre after cupola furnace remelting, fibrosis.
The technique of cupola furnace slakin cotton is used to have some drawback following: (1) consumes a large amount of coke, coal, wet goods resource conversion are heat energy, and often production one ton of mineral wool need consume 0.6 ton, coke, be equivalent to 0.7 ton of standard coal, nearly 1 ton of CO2 will be produced, therefore great pollution will be caused to environment.(2) heavy blast furnace slag after block is become because existing Technology is raw materials used for slow cooling, therefore the melt blast furnace slag by blast furnace is discharged is needed to become after block to send into cupola furnace remelting again through slow cooling, therefore a large amount of sensible heats of melt blast furnace slag are wasted, the production cost simultaneously also strengthened.(3) production poor product quality, easy efflorescence, is only suitable for industrial heat preservation use, cannot meet the requirement of architectural external wall thermal insulation mineral wool.
In recent years, there is the method adopting heated by electrodes operating mine slag wool, as the Chinese patent that application number is 201210317917.5 (applying date is on August 31st, 2012), disclose one and " meet electromagnetic induction slag smelting furnace and the production method thereof of short route slag wool production ", its heating installation is provided with a set of rise fall of electrodes and revolution whipping appts; Application number is that the Chinese patent of 201210085131.5 (applying date is on March 27th, 2012) discloses " a kind of slag wool working method ".Above technique adopts quartzite, sandstone as adjusting material, adds basalt and quartzitic produced quantity, and all to adopt heating by electric cooker to carry out homogenizing modified simultaneously.
Summary of the invention
The utility model provides the device that a kind of melt blast-furnace slag is equipped with mill tailings slag wool production, adopts two-stage heating by electric cooker, and arranges nitrogen injection system at furnace bottom, homogenizing is modified effective, achieve the recycling of mill tailings simultaneously, effectively economize on resources, reduce production cost.
In order to achieve the above object, the utility model realizes by the following technical solutions:
Be equipped with the device of mill tailings slag wool production with melt blast-furnace slag, comprise the electric furnace one, electric furnace two, whizzer and the cotton collecting machine that connect successively, bottom described electric furnace one and electric furnace two, be equipped with nitrogen injection mouth.
Adjusting material feeding mouth is established on described electric furnace one top, and bottom sets out cinder notch connects electric furnace two opening for feed by slag runner; Electric furnace two bottom is provided with slag notch and connects whizzer by slag runner, is connected between whizzer with cotton collecting machine by airduct.
Described electric furnace one and electric furnace two adopt heated by electrodes mode.
Described whizzer is four roller whizzers.
Described cotton collecting machine is drum-type cotton collecting machine.
Compared with prior art, the beneficial effects of the utility model are:
1) be raw material with melt blast-furnace slag, efficiently utilize the potential heat energy of melt blast-furnace slag, reduce production energy consumption;
2) adopt heating by electric cooker mode, avoid cupola furnace energy consumption large, the shortcoming of high pollution, makes the ferriferous oxide in raw material be retained in slag simultaneously and is not reduced, ensure that the stability in molten bath;
3) adjusting material selects mill tailings, reduces the purchase to basalt and quartzite etc. and exploitation on the one hand, not only reduces operation cost, avoid the wasting of resources, on the other hand, efficiently solve a process difficult problem for mill tailings, mine metallurgical solid waste is reused; Because mill tailings granularity is comparatively thin, in molten bath, mass transfer effect is better than the lumpy materials such as rhombspar, quartzite, quartz sand, and time modified, melt uniformity is better;
4) adopt two-stage heating by electric cooker, and bottom of furnace body establishes nitrogen injection to stir, and strengthens modified effect, make melt modified evenly;
5) effectively prevent the shortcoming that blast furnace slag acidity quotient is low, modified rear acidity system is between 1.0 ~ 2.2, not only can manufacture mineral wool product, also can produce the external wall outer insulation mineral wool product for building meeting national standard simultaneously, improve value-added content of product.
Accompanying drawing explanation
Fig. 1 is equipment connection schematic diagram of the present utility model.
In figure: be 1. incubated slag ladle 2. little slag ladle 3. electric furnace 1 adjusting material feeding mouth 5. electric furnace one slag notch 6. electric furnace one nitrogen injection mouth 7. electric furnace 2 8. electric furnace two slag notch 9. electric furnace phenodiazine gas blowout mouthpiece 10. whizzer 11. cotton collecting machine
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, it is equipment connection schematic diagram of the present utility model, the utility model melt blast-furnace slag is equipped with the device of mill tailings slag wool production, comprise the electric furnace 1, electric furnace 27, whizzer 10 and the cotton collecting machine 11 that connect successively, bottom described electric furnace 1 and electric furnace 27, be equipped with nitrogen injection mouth 6/9.
Adjusting material feeding mouth 4 is established on described electric furnace 1 top, and bottom sets out cinder notch 5 connects electric furnace 27 opening for feed by slag runner; Electric furnace 27 bottom is provided with slag notch 8 and connects whizzer 10 by slag runner, is connected between whizzer 10 with cotton collecting machine 11 by airduct.
Described electric furnace 1 and electric furnace 27 adopt heated by electrodes mode.
Described whizzer 10 is four roller whizzers.
Described cotton collecting machine 11 is drum-type cotton collecting machine.
The using method that the utility model melt blast-furnace slag is equipped with the device of mill tailings slag wool production is as follows:
Melt blast-furnace slag insulation slag ladle is transported to mineral wool production line from blast furnace, pours in the little slag ladle of 5t in batches, then is poured onto in electric furnace one by the melt blast-furnace slag in little slag ladle, added by mill tailings in electric furnace one simultaneously; It is 55%-90% that melt blast-furnace slag adds weight percent, and it is 10%-45% that mill tailings adds weight percent.Mill tailings is standard sieve 60 order screen underflow after iron ore reverse flotation.
In electric furnace one, bath temperature controls between 1200 DEG C ~ 1600 DEG C, carries out homogenizing modified, nitrogen flow 50 ~ 60Nm by bottom nitrogen-blow
3/ h, the molten slurry after homogenizing is modified is from electric furnace one slag notch along slag runner from flowing into electric furnace two, and in electric furnace two, bath temperature controls between 1400 DEG C ~ 1500 DEG C, carries out meticulous homogenizing modified, nitrogen flow 40 ~ 50Nm by bottom nitrogen-blow
3/ h;
Molten slurry after meticulous homogenizing is modified flows out from electric furnace two slag notch, in the process flowed out, be centrifuged the mineral wool filament that machine gets rid of into 3 ~ 5 microns, after cotton collecting machine is collected, obtain mineral wool product.
The melt blast-furnace slag being transported to mineral wool production line from insulation slag ladle 1 is had bad luck by the little slag ladle 2 of 5t, can reduce, to the impact in electric furnace 1 stove, to ensure that smooth production process is carried out, and is conducive to extending electric furnace work-ing life.
Mill tailings is standard sieve 60 order screen underflow after iron ore reverse flotation, and its granularity is comparatively thin, and in molten bath, mass transfer effect is better than the lumpy materials such as rhombspar, quartzite, quartz sand, and time modified, melt uniformity is better.
The type of heating of electric furnace 1 and electric furnace 27 is heated by electrodes, in modified process between melt, on the one hand play stirring action by the electric arc that produces between electrode and eddy current, nitrogen injection system plays stirring action while modified on the other hand, so just make melt modified evenly.
Complete in electric furnace 1 and add melt blast-furnace slag and mill tailings, and carry out tentatively modified process, in electric furnace 27, except carry out further meticulous homogenizing modified except, because bath liquid level is relatively mild, be conducive to the stable outflow of stream, molten slurry after meticulous homogenizing is modified flows out through electric furnace two slag notch 8 with low flow rate strand, concrete flow is determined with the type of slag wool production and output, melt the flywheel starched and be centrifuged machine 10 in the process flowed out gets rid of into 3 ~ 5 microns filament in the mode of relay, after collecting finally by cotton collecting machine 11, obtain mineral wool raw materials.
Claims (5)
1. be equipped with the device of mill tailings slag wool production with melt blast-furnace slag, it is characterized in that, comprise the electric furnace one, electric furnace two, whizzer and the cotton collecting machine that connect successively, bottom described electric furnace one and electric furnace two, be equipped with nitrogen injection mouth.
2. melt blast-furnace slag according to claim 1 is equipped with the device of mill tailings slag wool production, it is characterized in that, adjusting material feeding mouth is established on described electric furnace one top, and bottom sets out cinder notch connects electric furnace two opening for feed by slag runner; Electric furnace two bottom is provided with slag notch and connects whizzer by slag runner, is connected between whizzer with cotton collecting machine by airduct.
3. melt blast-furnace slag according to claim 1 is equipped with the device of mill tailings slag wool production, it is characterized in that, described electric furnace one and electric furnace two adopt heated by electrodes mode.
4. melt blast-furnace slag according to claim 1 is equipped with the device of mill tailings slag wool production, it is characterized in that, described whizzer is four roller whizzers.
5. melt blast-furnace slag according to claim 1 is equipped with the device of mill tailings slag wool production, it is characterized in that, described cotton collecting machine is drum-type cotton collecting machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420696424.1U CN204298254U (en) | 2014-11-19 | 2014-11-19 | The device of mill tailings slag wool production is equipped with melt blast-furnace slag |
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| CN201420696424.1U CN204298254U (en) | 2014-11-19 | 2014-11-19 | The device of mill tailings slag wool production is equipped with melt blast-furnace slag |
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| CN204298254U true CN204298254U (en) | 2015-04-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107056039A (en) * | 2017-06-20 | 2017-08-18 | 许玉蕊 | The device of mineral wool is produced using liquid blast furnace |
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2014
- 2014-11-19 CN CN201420696424.1U patent/CN204298254U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107056039A (en) * | 2017-06-20 | 2017-08-18 | 许玉蕊 | The device of mineral wool is produced using liquid blast furnace |
| CN107056039B (en) * | 2017-06-20 | 2019-08-20 | 许玉蕊 | Utilize the device of liquid blast furnace production mineral wool |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180814 Address after: 114000 Anshan Iron and steel plant, Tiexi District, Anshan, Liaoning Patentee after: Angang Green Resources Technology Co., Ltd. Address before: 114000 Liaoning Anshan Anshan iron and steel plant area Patentee before: SLAG DEVELOPMENT COMPANY OF ANSHAN IRON AND STEEL GROUP CORPORATION |