CN1394822A - Thermal connection process for producing rock cotton by using furnace slag of cyclone furnace and its adopted afterburning furnace - Google Patents
Thermal connection process for producing rock cotton by using furnace slag of cyclone furnace and its adopted afterburning furnace Download PDFInfo
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- CN1394822A CN1394822A CN 01120113 CN01120113A CN1394822A CN 1394822 A CN1394822 A CN 1394822A CN 01120113 CN01120113 CN 01120113 CN 01120113 A CN01120113 A CN 01120113A CN 1394822 A CN1394822 A CN 1394822A
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- afterburning
- cyclone
- cooling groove
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- 239000002893 slag Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 31
- 229920000742 Cotton Polymers 0.000 title claims description 14
- 239000011435 rock Substances 0.000 title description 2
- 238000010438 heat treatment Methods 0.000 claims abstract description 49
- 239000011490 mineral wool Substances 0.000 claims abstract description 18
- 238000010891 electric arc Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 34
- 238000005516 engineering process Methods 0.000 claims description 14
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 239000010431 corundum Substances 0.000 claims description 6
- 239000011819 refractory material Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000011449 brick Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910006295 Si—Mo Inorganic materials 0.000 description 1
- -1 Xuan Wuyan Substances 0.000 description 1
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- RXVRWMVUEIVEGW-UHFFFAOYSA-N [C].[Si].[Mo] Chemical compound [C].[Si].[Mo] RXVRWMVUEIVEGW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The present invention relates to a thermal concatenation process for producing rock wool by using furnace slag of cyclone surface and the field of its adopted afterburner equipment, and is characterized by that process can be implemented according to following steps: (A) an afterburner furnace is placed between the lower portion of cyclone furnace and rock wool production line; (B). the electric arc method is used to heat cold state slag material in the interior of afterburner furnace to 1400 deg.C-1700 deg.C; (C). after the furnace material is powered on, the electric arc heating can be removed; (D). the electric slag heating electrode embedded in the melting body of afterburner furnace is started to implement continuous heating process; and (E) the after-burner furnace can be moved under the furnace bottom of cyclone furnace to receive high-temp. furnace slag and make after-burning process.
Description
The invention belongs to whirlwind furnace liquid deslagging innoxious use technical field, the concurrent heating apparatus field that particularly a kind of furnace slag of cyclone furnace is produced rock wool thermal connection technology and adopted.
The method of traditional manufacturing rock wool is that raw materials such as Xuan Wuyan, coke are heated to 1600 ℃ by normal temperature in cupola furnace, and then high-temperature fusant is made into cotton by making cotton equipment.Also have at present many producers directly to be equipped with other material to the flyash of boiler in the future, pass through high temperature melting again, and then make rock wool, this kind method is commonly referred to " sharp useless method ", and the advantage of this method is to have realized utilization of waste material, but does not have the advantage of energy-conservation aspect.
Method with high temperature furnace slag of cyclone furnace production rock wool has numerous application at home and abroad.At present, the thermal connection principal mode that adopts usually both at home and abroad is: (1) directly makes rock wool with the high temperature furnace slag of cyclone furnace; The main drawback of this method is: for most factories, because the restriction of boiler shop layout, exporting to the cotton four roller machines of system from whirlwind tube slag has certain distance, and the water conservancy diversion process must be arranged, and its equipment is called as diversion trench.Owing to slag in the diversion trench does not obtain energy supplement, be easy to form lump, stable bringing with continuous production had a strong impact on.(2) adopt the roasting cellar for storing things of silicon-carbon, (temperature can not be too high to reach certain temperature, otherwise will burn out carbon or molybdenum electrode in the diversion trench) and keep for some time after, diversion trench is pushed into connects the slag position, after slag covered electrode, begin energising, and withdraw from diversion trench, treat that all electrodes of molten bath all lead to and diversion trench is stretched into the slag well after powering on and connect material, and beginning is formal produces.The shortcoming of this method is: start-up course wastes time and energy, and the roasting cellar for storing things of globars is also damaged easily; In case diversion trench is out of order, just can't realize cold start-up.Because no longer have electroconductibility after the slag cooling, the electrode of imbedding in the slag can't be worked.(3) on the basis of such scheme, adopt Si-Mo rod to replace globars.Although can realize cold start-up, because material-to-be-heated low thermal conductivity characteristics, cause start time very long, and mobile diversion trench is very easy to cause the damage of silicon-carbon molybdenum bar, influence ordinary production; (4) with the method for fuel combustion, slag is carried out concurrent heating.The main drawback of this method is that efficient is low, can't realize cold start-up, and perhaps cold start-up is chronic, and facility investment simultaneously is also very big, and security simultaneously is also relatively poor.
The object of the present invention is to provide a kind of operational path convenient, required equipment is simple in structure, and is with low cost, and operation life is long, and energy-saving effect ideal furnace slag of cyclone furnace is produced rock wool thermal connection technology and special-purpose afterburning furnace.
Technical solution of the present invention can realize according to following mode:
Furnace slag of cyclone furnace of the present invention is produced rock wool thermal connection technology and can be undertaken by following steps in sequence:
(A) the downstream of cyclone furnace with become between the cotton production line afterburning furnace is set;
(B) with arc process the slag cold conditions material in the afterburning furnace is warmed up to 1400 ℃～1700 ℃:
(C) treat furnace charge conduction in the afterburning furnace after, cancel electric-arc heating;
(D) start the electroslag heating electrode of imbedding in the interior melt of afterburning furnace, with the follow-up heating process after the cold start-up termination that continues;
(E) afterburning furnace is moved on to accept high-temperature slag under the cyclone furnace furnace bottom and carry out the concurrent heating operation.
The present invention is warmed up to 1600 ℃ with arc process with the slag cold conditions material in the afterburning furnace and is optimum condition.
Electroslag heating electrode of the present invention can adopt molybdenum electrode; The arc process heating electrode is a Graphite Electrodes; When the electroslag heating electrode began to heat, electrode current was not less than 10 amperes.
The related afterburning furnace of thermal connection technology of the present invention contains: the stove outer lining that has water-cooling groove; Be provided with the corundum based refractory materials layer in the inboard of described water-cooling groove; Be respectively equipped with heat-eliminating medium inlet, the heat-eliminating medium outlet that communicates with the water-cooling groove inner chamber at the two ends of described water-cooling groove; Lower horizontal in described water-cooling groove is provided with the electroslag heating electrode; Top in described water-cooling groove is provided with the electric-arc heating electrode; End at described water-cooling groove is provided with discharge port; Described electric-arc heating electrode and electroslag heating electrode pass through transformer-supplied
Be provided with waterway in the sidewall of the discharge port that the present invention adopts; Described waterway communicates with the inner chamber of water-cooling groove.
Operational path of the present invention is convenient, and required equipment is simple in structure, and is with low cost, and operation life is long, the energy-saving effect ideal.The quality of ultimate product one rock wool that produces by this technology is higher, and environmental benefit is remarkable, and the cost of production rock cotton board only is traditional method half.
Below in conjunction with accompanying drawing in detail preferred forms of the present invention is described in detail:
Fig. 1 is an afterburning furnace one-piece construction synoptic diagram of the present invention;
Fig. 2 is an afterburning furnace discharge port part-structure synoptic diagram of the present invention;
Fig. 3 is electric-arc heating of the present invention and electroslag heating circuit functional block diagram;
Fig. 4 is for relating to the cotton process flow diagram of system of the present invention;
The slag characteristic test:
(1) viscosity test
According to traditional cupola furnace rock wool production technique theory and practice, whirlwind furnace liquid
It is that the factor that 0.5～2.5PaS. influences liquid slag viscosity mainly contains 2 points, i.e. composition and temperature that slag gets rid of cotton optimum viscosity scope.After the liquid slag that cyclone furnace is discharged is finished batching and increased calcium, just can only change viscosity, to guarantee to get rid of the cotton amount with the mode of controlled temperature.
According to the slag sample that brocade company provides, the viscosities il (PaS) of furnace slag of cyclone furnace and the relation of temperature T (K) have been recorded.
＝4.217+0.003326T (r＝0.998)
Can draw thus as drawing a conclusion:
1. for this kind slag, in order to access rock wool, the temperature that goes out afterburning furnace should be controlled in the certain temperature range.Going out afterburning furnace falls the melt temperature that gets rid of cotton roller head should to be higher than 1440. temperature too high (as 1700 ℃) also unfavorable to getting rid of cotton.The afterburning furnace temperature of recommending is 1550 ℃.
2. about 1500 ℃ of temperature, melt viscosity is along with variation of temperature speed tends towards stability.This explanation, from the angle of technology and operation, given slag with regard to viscosity, be very suitable for getting rid of cotton in temperature about 1500.(2) slag specific conductivity test
Recorded the relation of furnace slag of cyclone furnace specific conductivity G and temperature T (K) under different coals and the different proportionings with four probe method.Below provided the specific conductivity of certain typical slag specimen:
LnG＝8.186-19733.2/T
From above result:
1. slag conducts electricity hardly under the cold conditions, and therefore, the cold start-up of furnace slag of cyclone furnace afterburning furnace can not rely on direct resistive heating to realize, must rely on other indirect mode to realize that the black furnace of thermal connection equipment starts.
2. the temperature difference of slag, resistivity are just different.Therefore, be difficult to accomplish the three-phase equilibrium power supply with single three-phase transformer.Adjustable for the output power that makes each heating region, it is more more reliable than adopting a three-phase transformer job to adopt three individual event transformers.(3) test of furnace slag of cyclone furnace thermal conductivity
The used Xishan coal of Thermal Corp of brocadeization chemical industry group company and the furnace slag of cyclone furnace that obtains to awl temperature T 1 (1190 ℃), hemisphere attitude temperature T 2 (1230 ℃) and stream mode temperature T 3 (1330 ℃), be very useful for the data that adopt water-cooled dross method to test the slag thermal conductivity.
Thermal conductivity result measured in 570～1148 ℃ of temperature ranges is: the rising with temperature increases, and gets with the data processing of method of least squares with temperature and thermal conductivity: λ=-2.36+0.006t
In the formula, t is a slag temperature, ℃; λ is the skull thermal conductivity, W/ (m ℃).
From then on as can be seen:
1. the thermal conductivity of furnace slag of cyclone furnace at low temperatures and little, along with the rising thermal conductivity of temperature rises very soon, the thermal conductivity of common refractory does not alter a great deal the slag along with variation of temperature does not resemble.Therefore, furnace slag of cyclone furnace is a kind of extraordinary lagging material at low temperatures.
2. the thermal conductivity of furnace slag of cyclone furnace compare with other acid refractory and not quite (at the thermal conductivity W/ of 600 ℃ of following furnace slag of cyclone furnace, common silica brick, common high alumina brick and common brick (m ℃). be respectively: 1.24,1.60,1.41,1.19.This promptly has furnace lining (Self-formed Refractory) of one's own theoretical foundation is provided for directly adopting furnace slag of cyclone furnace to make furnace lining.
As shown in the figure, process portion involved in the present invention can be undertaken by following steps in sequence:
(A) the downstream of cyclone furnace with become between the cotton production line afterburning furnace is set;
(B) with arc process the slag cold conditions material in the afterburning furnace is warmed up to 1600 ℃;
(C) treat furnace charge conduction in the afterburning furnace after, cancel electric-arc heating;
(D) start the electroslag heating electrode of imbedding in the interior melt of afterburning furnace, with the follow-up heating process after the cold start-up termination that continues;
(E) afterburning furnace is moved on to accept high-temperature slag under the cyclone furnace furnace bottom and carry out the concurrent heating operation.
Electroslag heating electrode of the present invention adopts molybdenum electrode; The arc process heating electrode is a Graphite Electrodes; If the electroslag of horizontal positioned heating drops to 1 Ω with the resistance between the electrode, apply voltage so between electrode, the electric current by 250A just in electrode and the molten bath with 250V.When the electroslag heating electrode began to heat, electrode current was not less than 10 amperes.
Can obtain as drawing a conclusion from the cold start-up test: when using electric-arc heating, the heat transfer of slag melt on short transverse is very slow, therefore, from the cold start-up angle analysis, the electroslag heating can not be too big with electrode difference of altitude each other, generally must not surpass 50mm. should have waviness to change if consider melt being flowing in when works better in the afterburning furnace on the short transverse, the difference of altitude between the electroslag electrode should be 20～30mm so.
Afterburning furnace of the present invention adopts three transformers, and the capacity of every transformer is 200 kilovolt-amperes.By reasonable selection of transformer parameter and structure, transformer both can be used as electric-arc heating usefulness, also can be used as the electroslag heating and used.
The afterburning furnace that the present invention adopts contains: the stove outer lining 2 that has water-cooling groove 1; Be provided with corundum based refractory materials layer 11 in the inboard of described water-cooling groove 1 and be respectively equipped with heat-eliminating medium inlet 3, the heat-eliminating medium outlet 4 that communicates with water-cooling groove 1 inner chamber at the two ends of described water-cooling groove 1; Lower horizontal in described water-cooling groove 1 is provided with electroslag heating electrode 5; Top in described water-cooling groove 1 is provided with electric-arc heating electrode 6; Be provided with discharge port 7 in the end of described water-cooling groove 1; Described electric-arc heating electrode 6 passes through transformer-supplied with electroslag heating electrode 5.Be provided with waterway 8 in the sidewall of described discharge port 7; Described waterway 8 communicates with the inner chamber of water-cooling groove 1.
Have the furnace lining technology of one's own and relate to water-cooled discharge port and compound furnace binding, shown in Fig. 1～2,9 are the inner lining of furnace (having furnace lining of one's own) of water-cooling groove 1, and 10 are the liner (having furnace lining of one's own) of discharge port 7.For afterburning furnace body of heater material, adopt and have the furnace lining principle of one's own, according to the size of cooling intensity, can rationally regulate lining thickness.In order to cooperate black furnace to start, consider the security of stove and shorten start time that body of heater has adopted composite structure.The outermost layer that is body of heater is water-cooling jacket (water-cooling groove 1), and cooling intensity can be regulated, at water-cooling jacket (water-cooling groove 1) liner with corundum based refractory materials layer 11.Owing to after being subjected to the physical chemistry erosion of arc radiation and slag, will on the corundum based refractory materials layer, hang up slag, form inner lining of furnace (having furnace lining of one's own) when corundum based refractory materials layer 11.Liner 10 according to identical principle discharge port 7 also is to form naturally in dynamically.Afterburning furnace involved in the present invention since waterway 8 communicate with the inner chamber of water-cooling groove 1 and make the water-cooling groove 1 and the working cycle of the heat exchange medium of discharge port 7 integrated (certain, this heat exchange method neither be unique).As shown in Figure 1, heat exchange medium enters from heat-eliminating medium inlet 3, flows out from heat-eliminating medium outlet 4.Aspect the thermal technology, the structure of stove has also been taked many measures.For reliability and the minimizing thermosteresis that improves stove, the reducing processing has been carried out in the end of electroslag heating electrode; Adopt labyrinth seal to handle the problem that combines of bell and body of heater; Adopt the wedge brick structure that bell is sealed, to reduce owing to the stove thermosteresis that enters after the electric-arc heating under the electroslag heated condition significantly.Row's iron mouth and overflow port on stove, have also been offered, to improve the adaptability of stove.When normal operation, the output rating of every transformer is 110～130KW.
Claims (5)
1, furnace slag of cyclone furnace is produced rock wool thermal connection technology, it is characterized in that: undertaken by following steps in sequence:
(A) the downstream of cyclone furnace with become between the cotton production line afterburning furnace is set;
(B) with arc process the slag cold conditions material in the afterburning furnace is warmed up to 1400 ℃～1700 ℃:
(C) treat furnace charge conduction in the afterburning furnace after, cancel electric-arc heating;
(D) start the electroslag heating electrode of imbedding in the interior melt of afterburning furnace, with the follow-up heating process after the cold start-up termination that continues;
(E) afterburning furnace is moved on to accept high-temperature slag under the cyclone furnace furnace bottom and carry out the concurrent heating operation.
2, furnace slag of cyclone furnace according to claim 1 is produced rock wool thermal connection technology, it is characterized in that: with arc process the slag cold conditions material in the afterburning furnace is warmed up to 1600 ℃.
3, furnace slag of cyclone furnace according to claim 1 and 2 is produced rock wool thermal connection technology, it is characterized in that: the electroslag heating electrode adopts molybdenum electrode; The arc process heating electrode is a Graphite Electrodes; When the electroslag heating electrode began to heat, electrode current was not less than 10 amperes.
4, furnace slag of cyclone furnace according to claim 1 is produced the afterburning furnace that rock wool thermal connection technology is adopted, and it is characterized in that: contain: the stove outer lining (2) that has water-cooling groove (1); Be provided with corundum based refractory materials layer (11) in the inboard of described water-cooling groove (1); Be respectively equipped with heat-eliminating medium inlet (3), the heat-eliminating medium outlet (4) that communicates with water-cooling groove (1) inner chamber at the two ends of described water-cooling groove (1); Lower horizontal in described water-cooling groove (1) is provided with electroslag heating electrode (5); Top in described water-cooling groove (1) is provided with electric-arc heating electrode (6); Be provided with discharge port (7) in the end of described water-cooling groove (1); Described electric-arc heating electrode (6) passes through transformer-supplied with electroslag heating electrode (5).
5, furnace slag of cyclone furnace according to claim 4 is produced the afterburning furnace that rock wool thermal connection technology is adopted, and it is characterized in that: be provided with waterway (8) in the sidewall of described discharge port (7); Described waterway (8) communicates with the inner chamber of water-cooling groove (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01120113 CN1394822A (en) | 2001-07-05 | 2001-07-05 | Thermal connection process for producing rock cotton by using furnace slag of cyclone furnace and its adopted afterburning furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01120113 CN1394822A (en) | 2001-07-05 | 2001-07-05 | Thermal connection process for producing rock cotton by using furnace slag of cyclone furnace and its adopted afterburning furnace |
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| CN1394822A true CN1394822A (en) | 2003-02-05 |
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| CN 01120113 Pending CN1394822A (en) | 2001-07-05 | 2001-07-05 | Thermal connection process for producing rock cotton by using furnace slag of cyclone furnace and its adopted afterburning furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285768A (en) * | 2011-06-14 | 2011-12-21 | 郭永强 | One-step method for producing mineral wool by using metallurgical high-temperature slag and equipment adopted thereby |
| CN102826748A (en) * | 2012-08-31 | 2012-12-19 | 朱兴发 | Electromagnetic induction slag smelting furnace meeting requirement on mineral wool production with short process and production method thereof |
| CN103803793A (en) * | 2013-11-18 | 2014-05-21 | 河北联合大学 | Method for preparing inorganic fibers by using direct blowing of blast furnace molten slag |
-
2001
- 2001-07-05 CN CN 01120113 patent/CN1394822A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285768A (en) * | 2011-06-14 | 2011-12-21 | 郭永强 | One-step method for producing mineral wool by using metallurgical high-temperature slag and equipment adopted thereby |
| CN102826748A (en) * | 2012-08-31 | 2012-12-19 | 朱兴发 | Electromagnetic induction slag smelting furnace meeting requirement on mineral wool production with short process and production method thereof |
| CN102826748B (en) * | 2012-08-31 | 2014-10-22 | 朱兴发 | Electromagnetic induction slag smelting furnace meeting requirement on mineral wool production with short process and production method thereof |
| CN103803793A (en) * | 2013-11-18 | 2014-05-21 | 河北联合大学 | Method for preparing inorganic fibers by using direct blowing of blast furnace molten slag |
| CN103803793B (en) * | 2013-11-18 | 2014-11-05 | 河北联合大学 | Method for preparing inorganic fibers by using direct blowing of blast furnace molten slag |
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