WO2020244165A1 - Four, dispositif et procédé de production de laine de roche - Google Patents

Four, dispositif et procédé de production de laine de roche Download PDF

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Publication number
WO2020244165A1
WO2020244165A1 PCT/CN2019/119664 CN2019119664W WO2020244165A1 WO 2020244165 A1 WO2020244165 A1 WO 2020244165A1 CN 2019119664 W CN2019119664 W CN 2019119664W WO 2020244165 A1 WO2020244165 A1 WO 2020244165A1
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WO
WIPO (PCT)
Prior art keywords
rock wool
burner
kiln
furnace
furnace body
Prior art date
Application number
PCT/CN2019/119664
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English (en)
Chinese (zh)
Inventor
代森伟
任转波
范中华
张宏伟
孙仁权
Original Assignee
安德森热能科技（苏州）有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910474591.9A external-priority patent/CN112097515A/zh
Priority claimed from CN201920820908.5U external-priority patent/CN210426055U/zh
Application filed by 安德森热能科技（苏州）有限责任公司 filed Critical 安德森热能科技（苏州）有限责任公司
Publication of WO2020244165A1 publication Critical patent/WO2020244165A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235—Heating the glass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid

Definitions

  • the invention relates to the technical field of rock wool production, in particular to a rock wool production kiln, equipment and process.
  • rock wool production mainly relies on cupolas, using coke and ore raw materials. Not only is it not environmentally friendly, but because of its dependence on carbon, it is contrary to the concept of low-carbon, environmentally friendly and green development.
  • the Chinese government made a solemn promise to the world that "by 2020, carbon dioxide emissions per unit of GDP will be reduced by 40%-45% compared to 2005".
  • rock wool has a barrier effect on the penetration of radiant heat, the radiation of high-temperature pure oxygen flames can affect a large amount of glass. The effect of melting production is not good.
  • the purpose of the present invention is to provide a rock wool production kiln, equipment and process.
  • a rock wool production kiln including:
  • Furnace body the outer wall of the furnace body is provided with a water cooling jacket
  • a screw feeder installed at the first feeding port of the furnace body, the first feeding port being located below the liquid level of the melt in the furnace body during production;
  • a vibrating feeder installed at the second feeding port of the furnace body
  • a burner the burner is installed at the bottom of the furnace body or the side wall of the lower part of the furnace body, and the nozzle of the burner is immersed under the liquid surface of the melt in the furnace body;
  • the flue which is used to discharge exhaust gas from the furnace body during production, is arranged on the upper part of the furnace body;
  • the forehearth is used for discharging the melt in the furnace.
  • the present invention adopts a submerged combustion method.
  • the fuel and combustion-supporting gas are fully mixed and burned with the raw materials.
  • the fuel is directly injected into the raw materials, and flames and combustion are generated in the raw materials to melt the raw materials.
  • the burner is placed in the furnace At the bottom, the heat transfer method is improved and the melt has a violent convection stirring effect.
  • the energy utilization rate is extremely high, which is 3 times higher than that of traditional kilns.
  • the NOx emission is low, which is 2 times lower than that of traditional kilns.
  • the area of the kiln is designed to be 2-6m 2 , it is convenient to start and stop, can melt bulk materials or powder materials, and the output can reach 30-100t/d; the water-cooled furnace body is used, the furnace life is long, and the refractory materials are greatly reduced.
  • the use of, the dust emission is reduced by 10 times; no CO treatment system is needed, saving a lot of equipment investment and operating costs.
  • the burner includes:
  • the burner body includes a nozzle panel, a gas chamber, and a combustion-supporting gas chamber.
  • the nozzle panel is evenly provided with a plurality of nozzles.
  • the gas chamber and the combustion-supporting gas chamber are respectively distributed on both sides under the nozzle panel,
  • the nozzle panel is provided with an air guide hole communicating from the fuel gas chamber and the combustion-supporting gas chamber to the nozzle;
  • the cooling water channel surrounds the burner body.
  • a circle of half partitions is provided in the cooling water channel.
  • the water inlet and the water outlet of the cooling water channel are respectively located on both sides of the half partition, and the inlet The water outlet and the water outlet are respectively distributed at opposite ends of the burner body.
  • the heated water flow generates heat through the side wall to preheat the fuel gas and the combustion air, which improves the flame temperature and stability and reduces the heat loss.
  • the nozzle is a concave hemispherical groove
  • the gas guide hole connected to the gas chamber and the gas guide hole connected to the combustion-supporting gas chamber are both in a straight line
  • the two gas guide holes are arranged tangentially to the nozzle
  • the openings of the two air guide holes on the inner wall of the nozzle are arranged diagonally.
  • the number of the bottom surface area of the furnace body 2 is less than 4m, the burner is 2; furnace an area of the bottom surface area 2m 2 on the basis of each additional area 2m 2, the increase in the number of burners 1 .
  • the height of the first charging port from the bottom surface of the furnace body is 15%-50% of the height of the liquid level of the melt in the furnace body during production.
  • the above-mentioned preferred scheme is adopted to ensure stable and orderly melting production during normal production, and reduce the fluctuation of the combustion and melting process caused by the feeding of materials into the small space kiln.
  • the flue has an inclined part on the top of the furnace body, and a temperature sensor is arranged on the upper part of the flue.
  • the inclined part can prevent the heat exchanger from being blocked, and the temperature measuring sensor is arranged on the upper part of the flue, which can detect the temperature in the kiln more reliably.
  • an ignition rod is provided on the burner, and a flame detector is provided on the ignition rod.
  • the burner is equipped with ignition rod and flame detection, and the ignition step can respectively detect the self flame in real time.
  • the upper part of the side wall of the furnace body is provided with an openable and closable furnace door, and an ignition gun mechanism is provided corresponding to the position of the furnace door.
  • the ignition gun mechanism includes an ignition gun, a telescopic mechanism and a swing mechanism, and the telescopic mechanism drives the The firing gun telescopically moves, and the swing mechanism drives the telescopic mechanism and the firing gun to swing together.
  • the burner structure can be simplified, and the kiln configuration cost can be saved by using an external single igniter to ignite.
  • a rock wool production equipment includes a rock wool production kiln, a fiberizer, a cotton collector, and a curing furnace.
  • the forehearth of the rock wool production kiln is connected to the fiberizer, and the fiberizer blows The fibers are compressed into rock wool fiber sheets by the cotton collector, and then dried and solidified into rock wool in the curing oven.
  • the flue of the rock wool production kiln is connected to the heat exchanger and the flue gas treatment system, and the heat circulation pipeline of the heat exchanger is also connected to the curing furnace;
  • the thermal circulation pipeline of the heat exchanger is also connected to the raw material storage to be melted;
  • the thermal circulation pipeline of the heat exchanger is also connected to the fuel gas supply pipeline and the combustion-supporting gas supply pipeline of the burner.
  • the rock wool production efficiency is high, the quality is stable, and the heat exchanger fully comprehensively reuses the flue gas heat, which saves energy consumption, reduces production costs, and reduces pollution emissions.
  • a rock wool production process which includes the following steps:
  • Batching steps Weigh the raw materials according to the material side, and add them to the silo of the screw feeder and vibrating feeder after mixing;
  • Ignition steps Ignite the burner through the ignition system to reach the set temperature in the kiln;
  • Feeding steps Firstly, feed through the screw feeder and the vibrating feeder at the same time.
  • the melt level in the furnace reaches the set value, turn off the vibrating feeder, and adjust the feeding amount through the screw feeder to keep the feeding and discharge in balance , To keep the melt in the furnace within the set liquid level range;
  • High-temperature melting temperature control step by adjusting the flow ratio of the burner gas and the combustion-supporting gas, the furnace temperature is controlled to be kept in the range of 1100-1600°C;
  • Fiber-forming step through the fiberizer, blowing into fibers;
  • Cotton collection step the fiber is pressed into a certain thickness of rock wool fiber through the cotton collector;
  • Curing step drying and curing a certain thickness of rock wool fiber through a curing oven
  • Slicing step Pack the solidified rock wool slices according to the required specifications to make finished rock wool.
  • the flow ratio of the burner gas and the combustion-supporting gas adopts double cross-limiting control to ensure that the air-fuel ratio remains stable during the flow adjustment, the flow adjustment does not fluctuate, and the rock wool quality is more stable ,high productivity.
  • the ignition step includes the following steps:
  • Step A1 The igniter is pre-installed on the external mounting bracket of the kiln, and the mounting bracket is equipped with a telescopic mechanism and a swing mechanism; in turn, the igniter is close to the upper part of each burner to ignite the burner;
  • Step A2 After the last burner is ignited, stay on the upper part of the burner, turn off the natural gas of the igniter, retain the outflow of the combustion-supporting gas of the igniter, and continuously detect the flame through the flame detector on the igniter, and re-ignite if the flame goes out ;
  • Step A3 When the furnace temperature reaches 850°C or more, turn off the combustion-supporting gas of the ignition gun, exit the furnace, and close the furnace door.
  • the burner is ignited by an external ignition gun.
  • the ignition gun can be activated at any time for heat preservation of the kiln.
  • the ignition step includes the following steps:
  • Step B1 The burner has its own ignition rod, which has a flame detection function; each burner is ignited by its ignition rod and continues to detect the flame. If the flame is extinguished, it will ignite again;
  • Step B2 When the furnace temperature reaches 850°C or higher, the flame detection function is on standby, and the temperature of the furnace is detected by the temperature sensor.
  • each burner is equipped with ignition rods, which improves the stability and reliability of ignition and can detect the flame of each burner in real time.
  • Figure 1 is a schematic structural diagram of an embodiment of the present invention
  • Figure 2 is a schematic structural view of an embodiment of the burner of the present invention.
  • Figure 3 is a sectional view of the structure taken along the line A-A in Figure 2;
  • Figure 4 is a flow chart of the rock wool production process of the present invention.
  • furnace body 11- water cooling jacket; 12- first feeding port; 13- second feeding port; 14- flue; 15- feed channel; 2- burner; 21- burner body; 211- nozzle panel; 212-nozzle; 213-air guide hole; 214-gas chamber; 215-combustion-supporting gas chamber; 22-cooling water channel; 221-water inlet; 222-water outlet; 223-half partition.
  • one embodiment of the present invention is: a rock wool production kiln, including:
  • Furnace body 1 the outer wall of the furnace body 1 is provided with a water cooling jacket 11;
  • the screw feeder is installed at the first feeding port 12 of the furnace body 1, and the first feeding port 12 is located below the liquid level of the melt in the furnace body during production;
  • Vibrating feeder which is installed at the second feeding port 13 of the furnace body 1;
  • the burner 2 is installed at the bottom of the furnace body or the side wall of the lower part of the furnace body, and the nozzle of the burner 2 is immersed under the liquid surface of the melt in the furnace body;
  • the flue 14 is used to discharge exhaust gas from the furnace body during production, and is arranged on the upper part of the furnace body 1;
  • the forehearth 15 is used for discharging the melt in the furnace.
  • the forehearth adopts fused bricks, and the gate brick is used to adjust the discharge speed.
  • the beneficial effects of adopting the above technical scheme are: using the submerged combustion method, the fuel and combustion-supporting gas are fully mixed and burned with the raw materials, the fuel is directly injected into the raw materials, and flames and combustion are generated inside the raw materials to melt the raw materials, and the burner is placed in the furnace At the bottom, the heat transfer method is improved and the melt has a violent convection stirring effect.
  • the energy utilization rate is extremely high, which is 3 times higher than that of traditional kilns.
  • the NOx emission is low, which is 2 times lower than that of traditional kilns.
  • the area of the kiln is designed to be 2-6m 2 , it is convenient to start and stop, can melt bulk materials or powder materials, and the output can reach 30-100t/d; the water-cooled furnace body is used, the furnace life is long, and the refractory materials are greatly reduced.
  • the use of, the dust emission is reduced by 10 times; no CO treatment system is needed, saving a lot of equipment investment and operating costs.
  • the burner 2 includes: a burner body 21, which includes a nozzle panel 211, a gas chamber 214, and a combustion-supporting gas chamber 215. A plurality of nozzles 212 are provided. The gas chamber 214 and the combustion-supporting gas chamber 215 are respectively distributed on both sides below the nozzle panel 211.
  • the nozzle panel 211 is provided with the combustion chamber 214 and the combustion-supporting gas chamber 215 respectively connected to the nozzle 212
  • the combustion-supporting gas of the burner can be air, preheated air, oxygen-enriched or oxygen.
  • the nozzle 212 is a concave hemispherical groove, and the air guide hole 213 connected to the fuel gas chamber 214 and the air guide hole 213 connected to the combustion gas chamber 215
  • the two air guide holes 213 are arranged tangentially to the nozzle 212, and the two air guide holes 213 are arranged diagonally at the opening of the inner wall of the nozzle.
  • the overall size of the burner is 150mm(W) ⁇ 600mm(L), and when the bottom area of the furnace body is less than 4m 2 , the number of the burners is two; the bottom surface of the furnace body area based on the area 2m 2, 2m 2 for each additional area, increasing the number of burners 1.
  • the beneficial effects of adopting the above technical solution are: adopting a reasonable number of burners to ensure combustion efficiency, prevent excessive combustion from generating excessive smoke, and effectively reduce emissions.
  • burners are installed at the bottom of the furnace body and the lower side wall of the furnace body at the same time.
  • the approximate size of the kiln is long 2400mm ⁇ width 1650mm ⁇ high 2000mm
  • the melt level in the furnace during normal production is about 1000mm
  • two burners are installed on the bottom of the furnace body, and one burner is installed on the lower part of the side wall opposite the furnace body and the forehearth.
  • the thermal impact of the burner on the side wall also promotes the flow of the melt to the end of the material channel, reducing the circulation of the melt in the furnace and improving the production efficiency.
  • the height of the first charging port 12 from the bottom surface of the furnace body is 15%-50% of the liquid level of the melt in the furnace body during production.
  • the flue has an inclined part on the top of the furnace body, and a temperature sensor is provided on the upper part of the flue.
  • the inclined part can prevent the heat exchanger from being blocked, and the temperature measuring sensor is arranged on the upper part of the flue, which can detect the temperature in the kiln more reliably.
  • an ignition rod is provided on the burner, and a flame detector is provided on the ignition rod.
  • the beneficial effect of adopting the above technical solution is that the burner is equipped with ignition rod and flame detection, and the ignition step can detect its own flame in real time.
  • an openable and closable furnace door is provided on the upper part of the side wall of the furnace body, and a firing gun mechanism is provided corresponding to the position of the furnace door.
  • the firing gun mechanism includes a firing gun, a telescopic mechanism and a swing mechanism.
  • the telescopic mechanism drives the igniter to telescopically move, and the swing mechanism drives the telescopic mechanism and the igniter to swing together.
  • a rock wool production equipment includes a rock wool production kiln, a fiberizer, a cotton collector, and a curing furnace.
  • the forehearth of the rock wool production kiln is connected to the fiberizer, and the fiberizer blows The fibers are compressed into rock wool fiber sheets by the cotton collector, and then dried and solidified into rock wool in the curing oven.
  • it further includes a heat exchanger, the flue of the rock wool production kiln is connected to the heat exchanger and the flue gas treatment system, and the heat circulation pipeline of the heat exchanger is also Connected to the curing furnace; the thermal cycle pipeline of the heat exchanger is also connected to the raw material to be melted; the thermal cycle pipeline of the heat exchanger is also connected to the fuel gas supply pipe and the combustion-supporting gas supply pipe of the burner road.
  • the beneficial effects of adopting the above technical scheme are: integrated submerged combustion kiln, rock wool production efficiency is high, quality is stable, the heat exchanger fully comprehensively reuses the flue gas heat, saves energy consumption, reduces production costs, and reduces pollution emission.
  • a rock wool production process includes the following steps:
  • Batching steps Weigh the raw materials according to the material side, and add them to the silo of the screw feeder and vibrating feeder after mixing;
  • Ignition steps Ignite the burner through the ignition system to reach the set temperature in the kiln;
  • Feeding steps Firstly, feed through the screw feeder and the vibrating feeder at the same time.
  • the melt level in the furnace reaches the set value, turn off the vibrating feeder, and adjust the feeding amount through the screw feeder to keep the feeding and discharge in balance , To keep the melt in the furnace within the set liquid level range;
  • High-temperature melting temperature control step by adjusting the ratio of the flow rate of the burner gas to the combustion-supporting gas, the furnace temperature is controlled to be kept in the range of 1100-1600°C;
  • Fiber-forming step through the fiberizer, blowing into fibers;
  • Cotton collection step the fiber is pressed into a certain thickness of rock wool fiber through the cotton collector;
  • Curing step drying and curing a certain thickness of rock wool fiber through a curing oven
  • Slicing step Pack the solidified rock wool slices according to the required specifications to make finished rock wool.
  • the beneficial effects of using the above technical solution are: with the help of the submerged combustion method, the flow ratio of the burner gas and the combustion-supporting gas adopts double cross-limiting control to ensure that the air-fuel ratio remains stable during the flow adjustment, the flow adjustment does not fluctuate, and the rock wool quality More stable and high production efficiency.
  • the ignition step includes the following steps:
  • Step A1 The igniter is pre-installed on the external mounting bracket of the kiln, and the mounting bracket is equipped with a telescopic mechanism and a swing mechanism; in turn, the igniter is close to the upper part of each burner to ignite the burner;
  • Step A2 After the last burner is ignited, stay on the upper part of the burner, turn off the natural gas of the igniter, retain the outflow of the combustion-supporting gas of the igniter, and continuously detect the flame through the flame detector on the igniter, and re-ignite if the flame goes out ;
  • Step A3 When the furnace temperature reaches 850°C or more, turn off the combustion-supporting gas of the ignition gun, exit the furnace, and close the furnace door.
  • the beneficial effect of adopting the above technical solution is that the burner is ignited by an external ignition gun, and when the kiln needs to be kept warm urgently, the ignition gun can be activated at any time for keeping the furnace warm.
  • the ignition step includes the following steps:
  • Step B1 The burner has its own ignition rod, which has a flame detection function; each burner is ignited by its own ignition rod and continues to detect the flame. If the flame is extinguished, it will ignite again;
  • Step B2 When the furnace temperature reaches 850°C or higher, the flame detection function is on standby, and the temperature of the furnace is detected by the temperature sensor.
  • each burner is equipped with ignition rods, which improves the stability and reliability of ignition, and can detect the flame of each burner in real time.

Abstract

La présente invention concerne un four, un dispositif et un procédé de production de laine de roche. Le four de production de laine de roche comprend un corps de four, une enveloppe de refroidissement à eau, un dispositif d'alimentation à vis, un dispositif d'alimentation vibrant et une chambre de combustion, l'enveloppe de refroidissement à eau recouvrant une paroi externe du corps de four, et la chambre de combustion étant montée au niveau d'une partie inférieure du corps de four ou d'une paroi latérale d'une partie inférieure du corps de four. Au moyen d'une combustion submergée, le carburant, le gaz de support de combustion et une matière première sont complètement mélangés et brûlés, et le carburant est injecté directement dans la matière première, permettant d'améliorer ainsi un transfert de chaleur et ayant un effet d'agitation par convection intense sur la masse fondue, de telle sorte que le taux d'utilisation d'énergie est extrêmement élevé et est trois fois supérieur à celui d'un four traditionnel ; les émissions d'oxyde d'azote (NOx)) sont faibles et sont deux fois plus basses que celles d'un four traditionnel ; la taille du four est petite, la surface du four est conçue pour être de 2 à 6 m2, le four est facile à mettre en marche et à arrêter et peut faire fondre de gros matériaux ou de la poudre, et la quantité de décharge peut atteindre 30 t/j -100 t/j ; un corps de four à refroidissement à eau est utilisé, de telle sorte que la durée de vie du four est longue, l'utilisation d'un matériau réfractaire est considérablement réduite, et l'émission de poussière est réduite de 10 fois ; et un système de traitement de CO n'est pas nécessaire, et de grandes économies peuvent être faites en matière d'investissement en équipement et de coûts de fonctionnement.
PCT/CN2019/119664 2019-06-02 2019-11-20 Four, dispositif et procédé de production de laine de roche WO2020244165A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201910474591.9A CN112097515A (zh) 2019-06-02 2019-06-02 一种岩棉生产窑炉、设备及工艺
CN201910474591.9 2019-06-02
CN201920820908.5U CN210426055U (zh) 2019-06-02 2019-06-02 一种岩棉生产窑炉及岩棉生产设备
CN201920820908.5 2019-06-02

Publications (1)

Publication Number Publication Date
WO2020244165A1 true WO2020244165A1 (fr) 2020-12-10

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Publication number Priority date Publication date Assignee Title
CN201306715Y (zh) * 2008-12-09 2009-09-09 郑州顺兴耐火材料有限公司 混合器
US20160075585A1 (en) * 2012-11-29 2016-03-17 Johns Manville Methods and systems for making well-fined glass using submerged combustion
CN105452178A (zh) * 2013-02-28 2016-03-30 康宁股份有限公司 用于浸没燃烧式熔化的燃烧器
CN105579405A (zh) * 2013-07-31 2016-05-11 克瑙夫绝缘私人有限公司 浸没燃烧熔炉及方法
CN105593174A (zh) * 2013-07-31 2016-05-18 克瑙夫绝缘私人有限公司 使用浸没燃烧器熔化固体原料配合料的方法和装置
WO2016120350A1 (fr) * 2015-01-27 2016-08-04 Knauf Insulation Brûleur pour pot de fusion à brûleurs immergés
CN106639011A (zh) * 2016-10-31 2017-05-10 马鞍山市宏达保温材料有限公司 一种高防水性保温岩棉板及其制造方法
CN107010822A (zh) * 2016-01-28 2017-08-04 陈啸天 一种新型岩棉的制作工艺
CN107207305A (zh) * 2015-01-27 2017-09-26 克瑙夫绝缘私人有限公司 二氧化硅熔体的制备方法
US20180170792A1 (en) * 2012-07-03 2018-06-21 Johns Manville Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers
CN108625504A (zh) * 2018-06-08 2018-10-09 江苏振威新材料科技有限公司 一种具有吸音降噪功能的保温岩棉板及其制造方法
CN109399908A (zh) * 2018-12-28 2019-03-01 江苏众嚞新型建材有限公司 一种环保岩棉及其生产方法

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201306715Y (zh) * 2008-12-09 2009-09-09 郑州顺兴耐火材料有限公司 混合器
US20180170792A1 (en) * 2012-07-03 2018-06-21 Johns Manville Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers
US20160075585A1 (en) * 2012-11-29 2016-03-17 Johns Manville Methods and systems for making well-fined glass using submerged combustion
CN105452178A (zh) * 2013-02-28 2016-03-30 康宁股份有限公司 用于浸没燃烧式熔化的燃烧器
CN105579405A (zh) * 2013-07-31 2016-05-11 克瑙夫绝缘私人有限公司 浸没燃烧熔炉及方法
CN105593174A (zh) * 2013-07-31 2016-05-18 克瑙夫绝缘私人有限公司 使用浸没燃烧器熔化固体原料配合料的方法和装置
WO2016120350A1 (fr) * 2015-01-27 2016-08-04 Knauf Insulation Brûleur pour pot de fusion à brûleurs immergés
CN107207305A (zh) * 2015-01-27 2017-09-26 克瑙夫绝缘私人有限公司 二氧化硅熔体的制备方法
CN107010822A (zh) * 2016-01-28 2017-08-04 陈啸天 一种新型岩棉的制作工艺
CN106639011A (zh) * 2016-10-31 2017-05-10 马鞍山市宏达保温材料有限公司 一种高防水性保温岩棉板及其制造方法
CN108625504A (zh) * 2018-06-08 2018-10-09 江苏振威新材料科技有限公司 一种具有吸音降噪功能的保温岩棉板及其制造方法
CN109399908A (zh) * 2018-12-28 2019-03-01 江苏众嚞新型建材有限公司 一种环保岩棉及其生产方法

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