CN106746690A - A kind of method that mineral fibres is prepared by the secondary slag of copper ashes - Google Patents
A kind of method that mineral fibres is prepared by the secondary slag of copper ashes Download PDFInfo
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- CN106746690A CN106746690A CN201611181503.9A CN201611181503A CN106746690A CN 106746690 A CN106746690 A CN 106746690A CN 201611181503 A CN201611181503 A CN 201611181503A CN 106746690 A CN106746690 A CN 106746690A
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- slag
- mineral fibres
- copper ashes
- prepared
- throwing
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- 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
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to a kind of method and mineral fibres that mineral fibres is prepared by the secondary slag of copper ashes, enter that heat accumulating type melting furnace is melted, insulation obtains fused solution slag by the way that the throwing additive and the secondary slag of copper ashes that are obtained after mixing calcic waste and siliceous waste be well mixed, after fine grinding, last to control the temperature of fused solution slag to be down to predetermined temperature in pans, the fused solution slag for being up to predetermined temperature is made mineral fibres.The secondary slag of technology utilization copper ashes of the invention prepares mineral fibres, solves the utilization problem of the secondary slag of copper ashes, make fiber during can Mist heat recovering, melting furnace fusing process accomplish mixing be more uniformly distributed, energy-conserving and environment-protective, energy utilization rate are high.
Description
Technical field
Belong to mineral fibres preparation field the present invention relates to the technology, more particularly to one kind prepares mineral by the secondary slag of copper ashes
The method of fiber.
Background technology
The secondary slag of copper ashes is the secondary waste after copper ashes extracts iron, is a kind of large waste material instantly, at present by
Limited in technology and be not utilized.The secondary slag of copper ashes is main with SiO2、CaO、Al2O3Based on composition, its chemical composition and life
The raw material such as basalt, diabase for producing mineral fibres for building is similar, therefore can take with the secondary slag of copper ashes as primary raw material
Produce mineral fibres for building.
Mineral fibres is a kind of inorfil, with insulation, it is heat-insulated, fire-retardant the features such as, be a kind of excellent construction material.
Natural mineral fibres reserves are few, and current most of mineral fibres is adjusted by matching using different natural minerals
Chemical composition production.Exploitation natural minerals need to pay the costs such as cost of winning and environmental disruption, are replaced using metallurgical slag
Natural minerals production mineral fibres has big advantage.
In the prior art inorganic mineral fiber is prepared using molten blast furnace slag.However, the method has the following disadvantages：(1)
Raw material is the blast furnace slag of molten state, does not consider other metallurgical waste slags of solid-state；(2) blast-furnace slag temperature depends on blast furnace, can not
, once reducing, whole flow process cannot just be carried out for adjustment, blast furnace slag temperature；(3) evenly mixing device is to be heated, once
Temperature mixes after dropping to below mobility temperature with hot additive can be extremely difficult；(4) waste heat recovery of hot silk is not considered.
Therefore, based on problems of the prior art, it is necessary to a kind of method for preparing mineral fibres by the secondary slag of copper ashes.
The content of the invention
It is a primary object of the present invention to provide a kind of method for preparing mineral fibres by the secondary slag of copper ashes, copper ashes is make use of
Secondary slag, solves the utilization problem of the secondary slag of copper ashes, being capable of Mist heat recovering, melting furnace fusing during fiber is made
Process accomplish mixing be more uniformly distributed, energy-conserving and environment-protective, energy utilization rate are high.
According to the present invention, there is provided a kind of method for preparing mineral fibres by the secondary slag of copper ashes, comprise the following steps：
Step one：Throwing additive is obtained after calcic waste and siliceous waste are mixed；
Step 2：The secondary slag of throwing additive and copper ashes that step one is obtained is well mixed, enter heat accumulating type after fine grinding
Melting furnace melting, insulation obtain fused solution slag；
Step 3：Fused solution slag is delivered in pans, controls the temperature of fused solution slag to be down in pans
Predetermined temperature, the fused solution slag for being up to predetermined temperature is made mineral fibres, and mineral fibres is collected by collection device.
Further, the secondary slag of copper ashes in step 2 is the secondary waste that copper ashes is obtained after carrying iron.
Further, granularity is that powder below 200 mesh accounts for more than 90wt% (wt% is quality hundred after fine grinding in step 2
Divide ratio).
Further, the calcic waste in step one in throwing additive be quick lime, carbide slag one or two, contain
Silicon waste is one or more of flyash, river sand and cullet.
Further, each component of throwing additive accounts for the mass percent of the secondary quantity of slag of copper ashes and is respectively：Quick lime
Addition is 1-30%, and the addition of carbide slag is 1-10%, and the addition of flyash is 1-20%, and the addition of river sand is 1-
10%, the addition of cullet is 1-10%.
Further, heat accumulating type melting furnace melt temperature and holding temperature are 1200-1800 DEG C in step 2.
Further, heat accumulating type melting furnace soaking time is 15-30min in step 2.
Further, predetermined temperature is 1000-1450 DEG C in step 3.
Further, fused solution slag is blow molded into mineral fibres by being blown throwing in step 3.
The beneficial effect of above-mentioned technical proposal of the invention is：
The secondary slag of technology utilization copper ashes prepares mineral fibres, solves the utilization problem of the secondary slag of copper ashes, fine making
During dimension can Mist heat recovering, melting furnace fusing process accomplish mixing be more uniformly distributed, energy-conserving and environment-protective, using energy source
Rate is high.
Brief description of the drawings
Fig. 1 is the process chart that the present invention is prepared mineral fibres by the secondary slag of copper ashes.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
Embodiment 1
Mineral fibres is prepared by the secondary slag of copper ashes by following steps, technological process is as shown in Figure 1.It is by throwing additive
The flyash of 300kg and the quick lime of 600kg are mixed, then are added to above-mentioned throwing additive by the secondary slag of 3000kg copper ashes
In, being mixed, fine grinding, fine mill size is that 200 purposes account for more than the 90% of oeverall quality.Will mix it is levigate after powder feeding
Melted in heat accumulating type melting furnace, fusion temperature is 1550 DEG C, and is incubated 30min at this temperature.Liquid slag after fusing
Pans are drained to, 1400 DEG C of predetermined temperature is cooled in pans, be incubated 30min.Liquid slag in pans is poured into
Throwing equipment, mineral fibres is blown out by the technique for being blown throwing by slag, and mineral fibres passes through mineral fibres sensible heat collection device
Cool down and collect.The mineral fibres length being made is between 1mm-500mm, draw ratio meets production fiber between 10-3000
The requirement of plate.
Embodiment 2
Mineral fibres is prepared by the secondary slag of copper ashes by following steps, technological process is as shown in Figure 1.It is by throwing additive
The cullet of the flyash of 600kg, the quick lime of 900kg, the carbide slag of 300kg, the river sand of 300kg and 300kg is mixed, then
The secondary slag of 3000kg copper ashes is added into above-mentioned throwing additive, is mixed, fine grinding, fine mill size is accounted for always for 200 purposes
More than the 90% of weight.Will mix it is levigate after powder feeding heat accumulating type melting furnace in melted, fusion temperature is 1500
DEG C, and 30min is incubated at this temperature.Liquid slag after fusing is drained to pans, and predetermined temperature is cooled in pans
1400 DEG C, it is incubated 20min.Liquid slag in pans is poured into throwing equipment, slag is blown out by ore deposit by the technique for being blown throwing
Fibres, mineral fibres is cooled down and collected by mineral fibres sensible heat collection device.The mineral fibres length being made is 1mm-
Between 500mm, draw ratio meets the requirement of production fiberboard between 10-3000.
Embodiment 3
Mineral fibres is prepared by the secondary slag of copper ashes by following steps, technological process is as shown in Figure 1.It is by throwing additive
The cullet of the flyash of 30kg, the quick lime of 30kg, the carbide slag of 30kg, the river sand of 30kg and 30kg is mixed, then is being incited somebody to action
The secondary slag of 3000kg copper ashes is added into above-mentioned throwing additive, is mixed, fine grinding, and fine mill size accounts for totality for 200 purposes
More than the 90% of quality.Will mix it is levigate after powder feeding heat accumulating type melting furnace in melted, fusion temperature be 1800 DEG C,
And 15min is incubated at this temperature.Liquid slag after fusing is drained to pans, and predetermined temperature 1450 is cooled in pans
DEG C, it is incubated 15min.Liquid slag in pans is poured into throwing equipment, it is fine that slag is blown out into mineral by the technique for being blown throwing
Dimension, mineral fibres is cooled down and collected by mineral fibres sensible heat collection device.The mineral fibres length being made be 1mm-500mm it
Between, draw ratio meets the requirement of production fiberboard between 10-3000.
Embodiment 4
Mineral fibres is prepared by the secondary slag of copper ashes by following steps, technological process is as shown in Figure 1.It is by throwing additive
The river sand of the carbide slag of 150kg, the flyash of 300kg and 150kg is mixed, then is added to above-mentioned by the secondary slag of 3000kg copper ashes
In throwing additive, mixed, fine grinding, fine mill size is that 200 purposes account for more than the 90% of oeverall quality.To mix it is levigate after
Powder feeding heat accumulating type melting furnace in melted, fusion temperature is 1200 DEG C, and is incubated 25min at this temperature.Fusing
Liquid slag afterwards is drained to pans, and 1000 DEG C of predetermined temperature is cooled in pans, is incubated 30min.By in pans
Liquid slag pours into throwing equipment, and slag is blown out into mineral fibres by the technique for being blown throwing, and mineral fibres is aobvious by mineral fibres
Hot collection device is cooled down and collected.The mineral fibres length being made is between 1mm-500mm, draw ratio is full between 10-3000
The requirement of foot production fiberboard.
Embodiment 5
Mineral fibres is prepared by the secondary slag of copper ashes by following steps, technological process is as shown in Figure 1.It is by throwing additive
The river sand of the quick lime of 600kg, the cullet of 150kg and 150kg is mixed, then is added to above-mentioned by the secondary slag of 3000kg copper ashes
In throwing additive, mixed, fine grinding, fine mill size is that 200 purposes account for more than the 90% of oeverall quality.To mix it is levigate after
Powder feeding heat accumulating type melting furnace in melted, fusion temperature is 1700 DEG C, and is incubated 20min at this temperature.Fusing
Liquid slag afterwards is drained to pans, and 1400 DEG C of predetermined temperature is cooled in pans, is incubated 30min.By in pans
Liquid slag pours into throwing equipment, and slag is blown out into mineral fibres by the technique for being blown throwing, and mineral fibres is aobvious by mineral fibres
Hot collection device is cooled down and collected.The mineral fibres length being made is between 1mm-500mm, draw ratio is full between 10-3000
The requirement of foot production fiberboard.
The secondary slag of copper ashes used in embodiments of the invention 1-5 is the secondary waste that copper ashes is obtained after carrying iron.
Heat accumulating type melting furnace is adopted as gaseous fuel combustion and comes heated molten bath, flue gas in embodiments of the invention 1-5
Heat storage, heat storage heated gaseous fuel and combustion air.
It is w that the secondary slag of copper ashes and throwing additive mix the main component after melting in embodiments of the invention 1-5
(SiO2)+w(CaO)+w(Al2O3)+w (MgO) >=80%, balance of impurity；Wherein SiO2Content is 10-70 weight portions, and CaO contains
Measure is 10-50 weight portions, Al2O3Content is 10-60 weight portions, and content of MgO is 10-50 weight portions；Na2O、K2The alkali metal oxygen such as O
Compound total impurities are not more than 10 weight portions, and remaining total impurities is not more than 10 weight portions.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of method that mineral fibres is prepared by the secondary slag of copper ashes, it is characterised in that comprise the following steps：
Step one：Throwing additive is obtained after calcic waste and siliceous waste are mixed；
Step 2：The secondary slag of throwing additive and copper ashes that step one is obtained is well mixed, after fine grinding into heat accumulating type fusing
Stove melting, insulation obtain fused solution slag；
Step 3：The fused solution slag is delivered in pans, controls the temperature of fused solution slag to be down in pans
Predetermined temperature, the fused solution slag for being up to predetermined temperature is made mineral fibres, and the mineral fibres is collected by collection device.
2. the method that mineral fibres is prepared by the secondary slag of copper ashes according to claim 1, it is characterised in that the step 2
In the secondary slag of the copper ashes be secondary waste that copper ashes is obtained after carrying iron.
3. the method that mineral fibres is prepared by the secondary slag of copper ashes according to claim 1, it is characterised in that thin in step 2
Granularity is that powder below 200 mesh accounts for more than 90wt% after mill.
4. the method that mineral fibres is prepared by the secondary slag of copper ashes according to claim 1, it is characterised in that the step one
The calcic waste in middle throwing additive be quick lime, carbide slag one or two, the siliceous waste be flyash,
One or more of river sand and cullet.
5. the method that mineral fibres is prepared by the secondary slag of copper ashes according to claim 4, it is characterised in that throwing additive
Each component account for the mass percent of the secondary quantity of slag of the copper ashes and be respectively：The addition of quick lime is 1-30%, carbide slag
Addition is 1-10%, and the addition of flyash is 1-20%, and the addition of river sand is 1-10%, and the addition of cullet is 1-
10%.
6. the method that mineral fibres is prepared by the secondary slag of copper ashes according to claim 1, it is characterised in that stored in step 2
Hot type melting furnace melt temperature and holding temperature are 1200-1800 DEG C.
7. the method that mineral fibres is prepared by the secondary slag of copper ashes according to claim 1, it is characterised in that the step 3
Middle predetermined temperature is 1000-1450 DEG C.
8. the method that mineral fibres is prepared by the secondary slag of copper ashes according to claim 1, it is characterised in that institute in step 3
State fused solution slag and be blow molded into mineral fibres by being blown throwing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181503.9A CN106746690A (en) | 2016-12-19 | 2016-12-19 | A kind of method that mineral fibres is prepared by the secondary slag of copper ashes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611181503.9A CN106746690A (en) | 2016-12-19 | 2016-12-19 | A kind of method that mineral fibres is prepared by the secondary slag of copper ashes |
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| CN106746690A true CN106746690A (en) | 2017-05-31 |
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| CN201611181503.9A Pending CN106746690A (en) | 2016-12-19 | 2016-12-19 | A kind of method that mineral fibres is prepared by the secondary slag of copper ashes |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314319A (en) * | 2000-03-16 | 2001-09-26 | 赵善茂 | Method for directly converting liquid exhaust boiler slag into asbestos |
| CN102586609A (en) * | 2012-03-15 | 2012-07-18 | 北京大学 | Method for comprehensively utilizing copper slag |
| CN104986961A (en) * | 2015-07-21 | 2015-10-21 | 北京蓝昊环保设备有限公司 | Method for tempering high temperature slag and mineral cotton production method |
-
2016
- 2016-12-19 CN CN201611181503.9A patent/CN106746690A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314319A (en) * | 2000-03-16 | 2001-09-26 | 赵善茂 | Method for directly converting liquid exhaust boiler slag into asbestos |
| CN102586609A (en) * | 2012-03-15 | 2012-07-18 | 北京大学 | Method for comprehensively utilizing copper slag |
| CN104986961A (en) * | 2015-07-21 | 2015-10-21 | 北京蓝昊环保设备有限公司 | Method for tempering high temperature slag and mineral cotton production method |
Non-Patent Citations (2)
| Title |
|---|
| 周鸿章等编著: "《现代铝合金板带投资与设计、技术与装备、产品与市场》", 30 April 2012, 冶金工业出版社 * |
| 张耀明等主编: "《玻璃纤维与矿物棉全书》", 28 February 2001, 化学工业出版社 * |
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