CN113185133A - Waste rock wool capable of being recycled and regenerated for secondary time and production process thereof - Google Patents
Waste rock wool capable of being recycled and regenerated for secondary time and production process thereof Download PDFInfo
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- CN113185133A CN113185133A CN202110415832.XA CN202110415832A CN113185133A CN 113185133 A CN113185133 A CN 113185133A CN 202110415832 A CN202110415832 A CN 202110415832A CN 113185133 A CN113185133 A CN 113185133A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000010878 waste rock Substances 0.000 title claims abstract description 22
- 210000002268 wool Anatomy 0.000 title claims abstract description 22
- 239000011490 mineral wool Substances 0.000 claims abstract description 117
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002699 waste material Substances 0.000 claims abstract description 35
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 27
- 239000011230 binding agent Substances 0.000 claims abstract description 27
- 239000003086 colorant Substances 0.000 claims abstract description 27
- 239000005871 repellent Substances 0.000 claims abstract description 27
- 230000002940 repellent Effects 0.000 claims abstract description 26
- 239000002893 slag Substances 0.000 claims abstract description 25
- 239000003623 enhancer Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 9
- 229920000742 Cotton Polymers 0.000 claims description 66
- 239000000843 powder Substances 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 25
- 238000001035 drying Methods 0.000 claims description 15
- 238000000227 grinding Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 13
- 239000006004 Quartz sand Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 12
- 239000010445 mica Substances 0.000 claims description 12
- 229910052618 mica group Inorganic materials 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000003723 Smelting Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- -1 reinforcer Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims 1
- 239000012744 reinforcing agent Substances 0.000 abstract description 13
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000008929 regeneration Effects 0.000 abstract description 3
- 238000011069 regeneration method Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000010459 dolomite Substances 0.000 description 3
- 229910000514 dolomite Inorganic materials 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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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
- 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
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/02—Pretreated ingredients
-
- 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
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/14—Spraying
-
- 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
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/465—Coatings containing composite materials
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Composite Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses waste rock wool capable of being recycled and regenerated for a second time and a production process thereof, wherein the formula comprises the following components: rock wool scraps, rock wool slag balls, rock wool waste materials, a reinforcing agent, a defoaming agent, a coloring agent, a water repellent, a binder and dustproof oil, wherein the rock wool scraps, the rock wool slag balls, the rock wool waste materials, the reinforcing agent, the defoaming agent, the coloring agent, the water repellent, the binder and the dustproof oil are prepared from the following components in parts by weight: 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of a defoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil; the rock wool scrap, the rock wool slag balls and the rock wool waste are used as raw materials, secondary remelting regeneration can be achieved, the waste recovery rate is high, resources are saved, and the production cost of rock wool is reduced; the hardness of the rock wool is improved by adding the reinforcer, external force damage in the using process is reduced, the problems of cracking, sinking and damage of the rock wool are solved, the poor working reliability of the rock wool is enhanced, and potential safety hazards are eliminated.
Description
Technical Field
The invention relates to the technical field of rock wool production, in particular to waste rock wool capable of being recycled and regenerated for the second time and a production process thereof.
Background
The rock wool is an excellent fireproof heat-insulating building material, and is made up by using high-quality basalt and dolomite as main raw materials, high-temp. melting, high-speed centrifuging by using four-shaft centrifugal machine to form fibre, at the same time spraying a certain quantity of adhesive, dust-proofing oil and water-repellent agent, collecting by using cotton-collecting machine, utilizing pendulum process, laying cotton by three-dimensional method, solidifying and cutting so as to obtain the rock wool products with different specifications and uses.
However, most of the rock wool produced by the traditional process has the following problems: firstly, the recycling regeneration is difficult, the recovery rate of waste materials is low, certain resource waste is caused, and the production cost of rock wool is increased; secondly, the material has lower hardness, is easy to be damaged by external force in the using process, has the problems of cracking, sinking or damage and the like, has poor working reliability and has certain potential safety hazard; the drying force is insufficient in the production process, the excessive moisture in the material cannot be thoroughly removed, and the heat preservation performance of the rock wool is inevitably influenced.
Disclosure of Invention
The invention aims to provide waste rock wool capable of being recycled and regenerated for the second time and a production process thereof, and aims to solve the problems of difficult recycling, low hardness and insufficient drying strength in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the waste rock wool capable of being recycled and regenerated for the second time comprises the following components in percentage by weight: rock wool scraps, rock wool slag balls, rock wool waste materials, a reinforcing agent, a defoaming agent, a coloring agent, a water repellent, a binder and dustproof oil, wherein the rock wool scraps, the rock wool slag balls, the rock wool waste materials, the reinforcing agent, the defoaming agent, the coloring agent, the water repellent, the binder and the dustproof oil are prepared from the following components in parts by weight: 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of a defoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil.
Preferably, the enhancer is formed by mixing mica powder, quartz sand and talcum powder, and the weight ratio of the mica powder to the quartz sand to the talcum powder is 1: 3: 2.
A production process of waste rock wool capable of being recycled and regenerated for a second time comprises the following steps: weighing materials; step two, grinding; step three, strengthening; step four, drying; step five, defoaming; step six, molding;
in the first step, 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of an antifoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil are respectively weighed according to the weight parts of the components for later use;
pouring the rock wool scraps, the rock wool scraps and the rock wool waste prepared in the step one into a ball mill, grinding into powder particles with uniform size, and removing impurities by a cyclone collector to obtain cotton powder;
in the third step, the cotton powder obtained in the second step is poured into a stirrer, the enhancer prepared in the first step is added, and the mixture is uniformly mixed and stirred to obtain enhanced cotton powder;
in the fourth step, the reinforced cotton powder obtained in the third step is put into a microwave dryer, high-temperature microwaves are utilized to convert redundant moisture in the reinforced cotton powder into water vapor, and the water vapor is dehumidified and then discharged into a waste gas treatment system to leave dehydrated cotton powder;
pouring the dehydrated cotton powder obtained in the fourth step into a melting furnace, heating at high temperature to form molten cotton liquid, adding the defoaming agent and the coloring agent prepared in the first step, mixing and stirring uniformly, and removing redundant gas in the cotton liquid after vacuumizing to obtain defoaming cotton liquid;
and step six, pouring the defoamed cotton liquid obtained in the step five into a silk throwing machine, stretching and deforming the defoamed cotton liquid by using a multi-stage silk throwing roller rotating at a high speed, throwing into silk fibers, spraying the water repellent, the binder and the dustproof oil prepared in the step one into the silk fibers, enabling the silk fibers to be elongated and thinned under the action of airflow, and cooling, silk swinging, net laying and slitting by a cotton collecting machine to obtain the rock wool.
Preferably, in the second step, the ball mill is a dry ball mill, and the grinding precision is 80-100 meshes.
Preferably, in the third step, the stirring speed of the stirrer is 120-160 r/min, and the stirring time is 15-25 min.
Preferably, in the fourth step, the working frequency of the microwave dryer is 8-15 kHz, and the drying temperature is 110-130 ℃.
Preferably, in the fifth step, the heating temperature of the furnace is 1300-1500 ℃, and the working pressure is 0.003-0.006 Pa.
Preferably, in the sixth step, the thread throwing machine is a roller-type thread throwing machine, and the rotating speed of a roller is 80-120 r/s.
Compared with the prior art, the invention has the beneficial effects that: the waste rock wool capable of being recycled and regenerated for the second time and the production process thereof can be recycled and regenerated for the second time, have high hardness and are fully dried;
(1) mineral products such as traditional high-quality basalt, dolomite and the like are replaced by the rock wool scraps, the rock wool slag balls and the rock wool waste materials, secondary remelting regeneration can be realized, the waste material recovery rate is high, resources are saved, and the production cost of the rock wool is reduced;
(2) the reinforcer mixed by mica powder, quartz sand and talcum powder is added, so that the hardness of the rock wool is improved, the external force damage in the using process is reduced, the problems of cracking, sinking and damage of the rock wool are avoided, the poor working reliability of the rock wool is enhanced, and the potential safety hazard is eliminated;
(3) and microwave drying and vacuum defoaming treatment are added, so that redundant moisture in the material is completely removed, the material is dried fully, and the heat preservation performance of the rock wool is ensured.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
example 1:
the waste rock wool capable of being recycled and regenerated for the second time comprises the following components in percentage by weight: rock wool scraps, rock wool slag balls, rock wool waste materials, a reinforcing agent, a defoaming agent, a coloring agent, a water repellent, a binder and dustproof oil, wherein the rock wool scraps, the rock wool slag balls, the rock wool waste materials, the reinforcing agent, the defoaming agent, the coloring agent, the water repellent, the binder and the dustproof oil are prepared from the following components in parts by weight: 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of a defoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil, wherein the enhancer is formed by mixing mica powder, quartz sand and talcum powder, and the weight ratio of the mica powder to the quartz sand to the talcum powder is 1: 3: 2.
A production process of waste rock wool capable of being recycled and regenerated for a second time comprises the following steps: weighing materials; step two, grinding; step three, strengthening; step four, drying; step five, defoaming; step six, molding;
in the first step, 75 parts of rock wool chips, 74 parts of rock wool slag balls, 68 parts of rock wool waste, 20 parts of reinforcing agent, 6 parts of defoaming agent, 5 parts of coloring agent, 10 parts of water repellent, 8 parts of binder and 1 part of dustproof oil are weighed according to the parts by weight of the components for later use;
pouring the rock wool scraps, the rock wool scraps and the rock wool waste prepared in the step one into a ball mill, grinding into powder particles with uniform size, selecting a dry ball mill as the ball mill, grinding with the precision of 80-100 meshes, and removing impurities by a cyclone collector to obtain cotton powder;
in the third step, the cotton powder obtained in the second step is poured into a stirrer, the enhancer prepared in the first step is added, and the mixture is uniformly mixed and stirred, wherein the stirring speed of the stirrer is 120-160 r/min, and the stirring time is 15-25 min, so that the reinforced cotton powder is obtained;
in the fourth step, the reinforced cotton powder obtained in the third step is placed into a microwave dryer, high-temperature microwaves are utilized to convert redundant moisture in the reinforced cotton powder into water vapor, the working frequency of the microwave dryer is 8-15 kHz, the drying temperature is 110-130 ℃, the water vapor is dehumidified and then discharged into a waste gas treatment system, and dehydrated cotton powder is left;
pouring the dehydrated cotton powder obtained in the fourth step into a smelting furnace, heating at high temperature to form molten cotton liquid, wherein the heating temperature of the smelting furnace is 1300-1500 ℃, adding the defoaming agent and the coloring agent prepared in the first step, mixing and stirring uniformly, removing redundant gas in the cotton liquid after vacuumizing, and obtaining the defoaming cotton liquid with the working pressure of 0.003-0.006 Pa;
and in the sixth step, the defoamed cotton liquid obtained in the fifth step is poured into a silk throwing machine, the silk throwing machine adopts a roller type silk throwing machine, the rotating speed of a roller is 80-120 r/s, the defoamed cotton liquid is stretched and deformed by utilizing a multi-stage silk throwing roller rotating at a high speed, is thrown into silk fibers, and is sprayed with the water repellent, the binder and the dustproof oil prepared in the first step, so that the silk fibers are stretched and thinned under the action of airflow, and the rock wool is obtained after cooling, silk swinging, net laying and slitting by a cotton collecting machine.
Example 2:
the waste rock wool capable of being recycled and regenerated for the second time comprises the following components in percentage by weight: rock wool scraps, rock wool slag balls, rock wool waste materials, a reinforcing agent, a defoaming agent, a coloring agent, a water repellent, a binder and dustproof oil, wherein the rock wool scraps, the rock wool slag balls, the rock wool waste materials, the reinforcing agent, the defoaming agent, the coloring agent, the water repellent, the binder and the dustproof oil are prepared from the following components in parts by weight: 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of a defoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil, wherein the enhancer is formed by mixing mica powder, quartz sand and talcum powder, and the weight ratio of the mica powder to the quartz sand to the talcum powder is 1: 3: 2.
A production process of waste rock wool capable of being recycled and regenerated for a second time comprises the following steps: weighing materials; step two, grinding; step three, strengthening; step four, drying; step five, defoaming; step six, molding;
in the first step, 83 parts of rock wool chips, 80 parts of rock wool slag balls, 75 parts of rock wool waste, 23 parts of reinforcing agent, 8 parts of defoaming agent, 6 parts of coloring agent, 13 parts of water repellent, 10 parts of binder and 2 parts of dustproof oil are weighed according to the parts by weight of the components for later use;
pouring the rock wool scraps, the rock wool scraps and the rock wool waste prepared in the step one into a ball mill, grinding into powder particles with uniform size, selecting a dry ball mill as the ball mill, grinding with the precision of 80-100 meshes, and removing impurities by a cyclone collector to obtain cotton powder;
in the third step, the cotton powder obtained in the second step is poured into a stirrer, the enhancer prepared in the first step is added, and the mixture is uniformly mixed and stirred, wherein the stirring speed of the stirrer is 120-160 r/min, and the stirring time is 15-25 min, so that the reinforced cotton powder is obtained;
in the fourth step, the reinforced cotton powder obtained in the third step is placed into a microwave dryer, high-temperature microwaves are utilized to convert redundant moisture in the reinforced cotton powder into water vapor, the working frequency of the microwave dryer is 8-15 kHz, the drying temperature is 110-130 ℃, the water vapor is dehumidified and then discharged into a waste gas treatment system, and dehydrated cotton powder is left;
pouring the dehydrated cotton powder obtained in the fourth step into a smelting furnace, heating at high temperature to form molten cotton liquid, wherein the heating temperature of the smelting furnace is 1300-1500 ℃, adding the defoaming agent and the coloring agent prepared in the first step, mixing and stirring uniformly, removing redundant gas in the cotton liquid after vacuumizing, and obtaining the defoaming cotton liquid with the working pressure of 0.003-0.006 Pa;
and in the sixth step, the defoamed cotton liquid obtained in the fifth step is poured into a silk throwing machine, the silk throwing machine adopts a roller type silk throwing machine, the rotating speed of a roller is 80-120 r/s, the defoamed cotton liquid is stretched and deformed by utilizing a multi-stage silk throwing roller rotating at a high speed, is thrown into silk fibers, and is sprayed with the water repellent, the binder and the dustproof oil prepared in the first step, so that the silk fibers are stretched and thinned under the action of airflow, and the rock wool is obtained after cooling, silk swinging, net laying and slitting by a cotton collecting machine.
Example 3:
the waste rock wool capable of being recycled and regenerated for the second time comprises the following components in percentage by weight: rock wool scraps, rock wool slag balls, rock wool waste materials, a reinforcing agent, a defoaming agent, a coloring agent, a water repellent, a binder and dustproof oil, wherein the rock wool scraps, the rock wool slag balls, the rock wool waste materials, the reinforcing agent, the defoaming agent, the coloring agent, the water repellent, the binder and the dustproof oil are prepared from the following components in parts by weight: 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of a defoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil, wherein the enhancer is formed by mixing mica powder, quartz sand and talcum powder, and the weight ratio of the mica powder to the quartz sand to the talcum powder is 1: 3: 2.
A production process of waste rock wool capable of being recycled and regenerated for a second time comprises the following steps: weighing materials; step two, grinding; step three, strengthening; step four, drying; step five, defoaming; step six, molding;
in the first step, 90 parts of rock wool chips, 86 parts of rock wool slag balls, 82 parts of rock wool waste, 26 parts of reinforcing agent, 0 part of defoaming agent, 7 parts of coloring agent, 15 parts of water repellent, 12 parts of binder and 3 parts of dustproof oil are weighed according to the parts by weight of the components for later use;
pouring the rock wool scraps, the rock wool scraps and the rock wool waste prepared in the step one into a ball mill, grinding into powder particles with uniform size, selecting a dry ball mill as the ball mill, grinding with the precision of 80-100 meshes, and removing impurities by a cyclone collector to obtain cotton powder;
in the third step, the cotton powder obtained in the second step is poured into a stirrer, the enhancer prepared in the first step is added, and the mixture is uniformly mixed and stirred, wherein the stirring speed of the stirrer is 120-160 r/min, and the stirring time is 15-25 min, so that the reinforced cotton powder is obtained;
in the fourth step, the reinforced cotton powder obtained in the third step is placed into a microwave dryer, high-temperature microwaves are utilized to convert redundant moisture in the reinforced cotton powder into water vapor, the working frequency of the microwave dryer is 8-15 kHz, the drying temperature is 110-130 ℃, the water vapor is dehumidified and then discharged into a waste gas treatment system, and dehydrated cotton powder is left;
pouring the dehydrated cotton powder obtained in the fourth step into a smelting furnace, heating at high temperature to form molten cotton liquid, wherein the heating temperature of the smelting furnace is 1300-1500 ℃, adding the defoaming agent and the coloring agent prepared in the first step, mixing and stirring uniformly, removing redundant gas in the cotton liquid after vacuumizing, and obtaining the defoaming cotton liquid with the working pressure of 0.003-0.006 Pa;
and in the sixth step, the defoamed cotton liquid obtained in the fifth step is poured into a silk throwing machine, the silk throwing machine adopts a roller type silk throwing machine, the rotating speed of a roller is 80-120 r/s, the defoamed cotton liquid is stretched and deformed by utilizing a multi-stage silk throwing roller rotating at a high speed, is thrown into silk fibers, and is sprayed with the water repellent, the binder and the dustproof oil prepared in the first step, so that the silk fibers are stretched and thinned under the action of airflow, and the rock wool is obtained after cooling, silk swinging, net laying and slitting by a cotton collecting machine.
The rock wool obtained in the above embodiment is respectively subjected to performance detection and compared with the ordinary rock wool on the market, and the obtained results are as follows:
based on the above, the invention has the advantages that the reinforcer formed by mixing the mica powder, the quartz sand and the talcum powder is added, so that the hardness of the rock wool is improved, the external force damage in the using process is reduced, the problems of cracking, sinking and damage of the rock wool are avoided, the poor working reliability of the rock wool is enhanced, the potential safety hazard is eliminated, the rock wool scraps, the rock wool slag balls and the rock wool waste material are used for replacing the traditional mineral products such as high-quality basalt, dolomite and the like, the secondary furnace recycling can be realized, the waste recovery rate is high, the resource is saved, the production cost of the rock wool is reduced, the microwave drying and the vacuum defoaming treatment are added, the excessive moisture in the material is thoroughly removed, the drying is sufficient, and the heat preservation performance of the rock wool is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The waste rock wool capable of being recycled and regenerated for the second time comprises the following components in percentage by weight: rock wool piece, rock wool slag ball, rock wool waste material, reinforcer, defoaming agent, coloring agent, hydrophober, binder and dust proof oil, its characterized in that: the weight parts of the components are respectively as follows: 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of a defoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil.
2. The waste rock wool capable of being recycled and regenerated in a secondary melting furnace according to claim 1, is characterized in that: the reinforcer is formed by mixing mica powder, quartz sand and talcum powder, and the weight ratio of the mica powder to the quartz sand to the talcum powder is 1: 3: 2.
3. A production process of waste rock wool capable of being recycled and regenerated for a second time comprises the following steps: weighing materials; step two, grinding; step three, strengthening; step four, drying; step five, defoaming; step six, molding; the method is characterized in that:
in the first step, 75-90 parts of rock wool chips, 74-86 parts of rock wool slag balls, 68-82 parts of rock wool waste, 20-26 parts of an enhancer, 6-10 parts of an antifoaming agent, 5-7 parts of a coloring agent, 10-15 parts of a water repellent, 8-12 parts of a binder and 1-3 parts of dustproof oil are respectively weighed according to the weight parts of the components for later use;
pouring the rock wool scraps, the rock wool scraps and the rock wool waste prepared in the step one into a ball mill, grinding into powder particles with uniform size, and removing impurities by a cyclone collector to obtain cotton powder;
in the third step, the cotton powder obtained in the second step is poured into a stirrer, the enhancer prepared in the first step is added, and the mixture is uniformly mixed and stirred to obtain enhanced cotton powder;
in the fourth step, the reinforced cotton powder obtained in the third step is put into a microwave dryer, high-temperature microwaves are utilized to convert redundant moisture in the reinforced cotton powder into water vapor, and the water vapor is dehumidified and then discharged into a waste gas treatment system to leave dehydrated cotton powder;
pouring the dehydrated cotton powder obtained in the fourth step into a melting furnace, heating at high temperature to form molten cotton liquid, adding the defoaming agent and the coloring agent prepared in the first step, mixing and stirring uniformly, and removing redundant gas in the cotton liquid after vacuumizing to obtain defoaming cotton liquid;
and step six, pouring the defoamed cotton liquid obtained in the step five into a silk throwing machine, stretching and deforming the defoamed cotton liquid by using a multi-stage silk throwing roller rotating at a high speed, throwing into silk fibers, spraying the water repellent, the binder and the dustproof oil prepared in the step one into the silk fibers, enabling the silk fibers to be elongated and thinned under the action of airflow, and cooling, silk swinging, net laying and slitting by a cotton collecting machine to obtain the rock wool.
4. The production process of waste rock wool capable of being recycled and regenerated in a secondary melting furnace according to claim 3, is characterized in that: in the second step, the ball mill is a dry ball mill, and the grinding precision is 80-100 meshes.
5. The production process of waste rock wool capable of being recycled and regenerated in a secondary melting furnace according to claim 3, is characterized in that: in the third step, the stirring speed of the stirrer is 120-160 r/min, and the stirring time is 15-25 min.
6. The production process of waste rock wool capable of being recycled and regenerated in a secondary melting furnace according to claim 3, is characterized in that: in the fourth step, the working frequency of the microwave dryer is 8-15 kHz, and the drying temperature is 110-130 ℃.
7. The production process of waste rock wool capable of being recycled and regenerated in a secondary melting furnace according to claim 3, is characterized in that: in the fifth step, the heating temperature of the smelting furnace is 1300-1500 ℃, and the working pressure is 0.003-0.006 Pa.
8. The production process of waste rock wool capable of being recycled and regenerated in a secondary melting furnace according to claim 3, is characterized in that: in the sixth step, the thread throwing machine is a roller type thread throwing machine, and the rotating speed of a roller is 80-120 r/s.
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