CN111409289A - Production line equipment and preparation method of high-density mineral cotton fiberboard - Google Patents

Production line equipment and preparation method of high-density mineral cotton fiberboard Download PDF

Info

Publication number
CN111409289A
CN111409289A CN202010106133.2A CN202010106133A CN111409289A CN 111409289 A CN111409289 A CN 111409289A CN 202010106133 A CN202010106133 A CN 202010106133A CN 111409289 A CN111409289 A CN 111409289A
Authority
CN
China
Prior art keywords
fiberboard
melting furnace
cotton
density mineral
rock wool
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN202010106133.2A
Other languages
Chinese (zh)
Other versions
CN111409289B (en
Inventor
李豪
周森安
安俊超
李县辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sigma Henan High Temperature Technology Group Co Ltd
Original Assignee
Sigma Henan High Temperature Technology Group Co Ltd
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
Application filed by Sigma Henan High Temperature Technology Group Co Ltd filed Critical Sigma Henan High Temperature Technology Group Co Ltd
Priority to CN202010106133.2A priority Critical patent/CN111409289B/en
Publication of CN111409289A publication Critical patent/CN111409289A/en
Application granted granted Critical
Publication of CN111409289B publication Critical patent/CN111409289B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B1/00—Preparing the batches
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B3/00—Charging the melting furnaces
    • C03B3/02—Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet
    • C03B3/023—Preheating
    • 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
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
    • 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
    • C03B37/10—Non-chemical treatment
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/88—Insulating elements for both heat and sound
    • E04B1/90—Insulating elements for both heat and sound slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • E04B1/941—Building elements specially adapted therefor
    • E04B1/942—Building elements specially adapted therefor slab-shaped

Abstract

The invention discloses production line equipment and a preparation method of a high-density mineral cotton fiberboard, wherein the production line equipment comprises a feeding system, a melting furnace system, a cotton making system, a cotton collecting system, a prepressing system, a curing and forming system, a servo transverse system, a hot press forming system, a cutting system, a packaging system, an intelligent control system and a remote visual system; compared with the traditional mineral cotton fiberboard, the mineral cotton fiberboard has the characteristics of high density, high strength, high tensile and compressive strength and the like; the prepared fiberboard has no harmful gas emission in the use process, has wide product application range, can be used for building home decoration, packaging and the like, and can also be used as a wall material.

Description

Production line equipment and preparation method of high-density mineral cotton fiberboard
Technical Field
The invention relates to the technical field of production equipment and preparation of density fiberboards, in particular to production line equipment and a preparation method of a high-density mineral cotton fiberboard.
Background
The rock wool fiber is cotton-shaped non-continuous inorganic fiber prepared by centrifugally spinning industrial waste residues or natural rock minerals and the like by a melting method. The rock wool fiber has good chemical stability, the product has good dimensional stability, very low expansion rate and good mechanical property, and the plate product also has good waterproof property and hydrophobic property. In addition, the rock wool fiber product does not contain toxic and carcinogenic components such as chlorofluorocarbon, hydrofluorocarbon, hydrochlorofluorocarbon or rock wool and the like, and the content of radioactivity, free aldehyde and the like of the rock wool fiber product also meets the requirements of related standards. Different from organic heat-insulating materials, the porous structure of rock wool fiber is mostly open pores, and the air permeability is good, and the sound absorption and noise reduction performance is also good. The properties enable the rock wool fiberboard to be widely used in the aspects of building external wall heat preservation, building sound absorption, building fire prevention and the like at present. When a fire disaster occurs, the flame is not spread, toxic gas is not released, no burning dropping object exists, and no fire hazard exists; the rock wool fiber has high solution temperature, so that the rock wool fiber can not crack and shrink when a fire disaster happens, and the fire can be effectively prevented from spreading.
At present, the production method of the rock wool fiberboard mainly comprises a rolling method and a flat pressing method, the specific production process flow mainly comprises the steps of feeding, melting, glue spraying and fiber forming, cotton collecting, pendulum bob pleating, prepressing, curing and forming, cutting and packaging, the produced rock wool fiberboard belongs to a light fiberboard, and the density is 150-200 kg/m3Low density, mainThe method is used for building external wall heat insulation materials, the application range is narrow, in the existing rock wool fiberboard production method, the automation degree of a feeding system is not high, a melting furnace system uses a cupola furnace and takes coke as fuel, a curing and heating system mostly adopts natural gas for heating, and the method is not in accordance with the low-carbon environmental protection policy advocated by the state at present.
The wood board mainly comprises a fine wood board, a nine-centimeter board, a fiber board, a particle board, a decorative board, a packaging board and the like. The raw materials for producing the wood board mainly comprise wood, bamboo, bagasse, cotton and hemp, grass and wood straw and the like. The technological process of producing the wood board mainly comprises chipping, screening, hot grinding, gluing, drying, paving, prepressing, hot pressing, cooling, edge cutting, storing and sanding. The problems existing in the existing production of the blockboard are that sewage can be generated in the production process, the harvested bamboo resources are not beneficial to protecting the ecological environment, the burning point is low and the fire resistance is poor in the use process.
Disclosure of Invention
In order to solve the problems, the invention provides production line equipment and a preparation method of a high-density mineral cotton fiberboard, which realize automatic feeding and expand the application range of the prepared high-density mineral cotton fiberboard.
The invention is realized by the following technical scheme:
a production line device of high-density mineral cotton fiberboard comprises a feeding system and a melting furnace system;
the feeding system comprises a working platform, a side-turning automobile walking platform is vertically arranged on one side end face of the working platform, the cross section of the side-turning automobile walking platform is in a trapezoid shape with two inclined sides, a side-turning automobile transversely moving along the end face of the side-turning automobile walking platform is arranged on the end face of the side-turning automobile walking platform, a plurality of material bins for receiving different raw material types are arranged on one side of the working platform, which is positioned on the horizontal section of the side-turning automobile walking platform, and a hopper of the side-turning automobile runs towards the material bins when turning over;
the bottom surface downward sloping setting in material storehouse, and the one end of keeping away from the car of turning on one's side in material storehouse corresponds its bottom surface and is provided with the automatic vibrations discharge gate in material storehouse, and the bottom correspondence that is located the automatic vibrations discharge gate in material storehouse is provided with the compounding funnel, it is provided with the day feed bin of taking the weighing to correspond between automatic vibrations discharge gate in material storehouse and the compounding funnel, the base below of compounding funnel is provided with the horizontal belt conveyer of its removal of control, horizontal belt conveyer and the car walking platform parallel arrangement that turns on one's side are provided with the lifting machine that the tilt up set up, the lifting machine is used for conveying the compounding funnel to its top, the terminal bottom correspondence of lifting machine is provided with melting furnace system.
Furthermore, the side-turning automobile walking platform is higher than the material bin.
Furthermore, the melting furnace system comprises a melting furnace corresponding to the tail end of the elevator, the melting furnace is connected with a speed-regulating tempering heat-preservation melting pool through an overflow channel, and a heating device is arranged in the melting furnace.
Further, the heating device comprises a heating pipe inserted into the melting furnace, and the heating pipe is made of a silicon-molybdenum rod and a protection pipe.
Furthermore, the melting furnace system also comprises a rock wool heating preheating furnace arranged between the melting furnace and the tail end of the elevator, and a discharge port of the rock wool heating preheating furnace is connected with the melting furnace through a plurality of material secondary dispersion pipes.
Furthermore, the rock wool heating preheater is vertical structure.
Furthermore, the production line equipment further comprises a cotton making system, a cotton collecting system, a prepressing system, a curing and forming system, a servo transverse system, a hot press forming system, a cutting system, a packaging system, an intelligent control system and a remote visual system.
Further, a preparation method of the high-density mineral cotton fiberboard comprises the following steps of feeding, melting or melting after preheating, glue spraying and fiber forming, cotton collecting, pendulum bob pleating, prepressing, curing and forming, transverse, hot-press forming, cutting, packaging or veneering and packaging, and specifically comprises the following steps:
step one, feeding
The method comprises the following steps that raw materials are respectively turned to corresponding material bins through a side-turning automobile according to the types of feeding materials, the raw materials of the material bins flow into a weighing daily bin through automatic vibration discharge ports of the material bins respectively, the materials of the weighing daily bin are weighed according to a ratio through the discharge ports of the weighing daily bin and then automatically flow into corresponding mixing hoppers to be uniformly mixed, the mixing hoppers move to the bottoms of lifting machines on a horizontal belt conveyor, and the mixing hoppers are lifted to the tops of the mixing hoppers through the lifting machines to enable the mixing hoppers to be located above a melting furnace system;
step two, melting after melting or preheating
The raw materials conveyed to the upper part of the melting furnace system are directly conveyed into the melting furnace for heating and melting through the side turning of the mixing hopper or the raw materials conveyed to the upper part of the melting furnace system are firstly conveyed into the preheating furnace for preheating through the side turning of the mixing hopper and then conveyed into the melting furnace through the material secondary dispersion pipe for heating and melting, the heated and melted liquefied materials automatically overflow from an overflow channel of the melting furnace, flow into a speed-regulating tempering heat-preservation molten pool to regulate the component uniformity of the liquefied materials and regulate the acidity of the liquefied materials;
step three, spraying glue to form fiber
The liquefied material with the adjusted acidity is fed into a centrifugal machine of a cotton making system, the liquefied material is thrown into filamentous rock wool under the high-speed rotation condition of the centrifugal machine, and atomized adhesive is sprayed onto the surface of the filamentous rock wool through a spray hole during fiber forming to obtain the adhesive-sprayed filamentous rock wool;
step four, cotton collecting and pendulum mass pleating
Collecting the fiber filamentous rock wool sprayed with glue by a horn-shaped swing hopper in a cotton collecting system, swinging the swing hopper left and right along the edge of a discharge port, pleating the fiber filamentous rock wool and uniformly paving the fiber filamentous rock wool on a paving machine to ensure that the rock wool has uniform thickness;
step five, prepressing
The paved glue-sprayed fiber filamentous rock wool is subjected to preliminary molding of a fiber plate blank through a sweeping roller and a prepressing machine of a prepressing system, and the prepressing can adopt a continuous roller type prepressing or a continuous flat pressing type prepressing machine;
step six, curing and forming
Conveying the pre-pressed and preliminarily molded plate blank to a curing furnace of a curing molding system, and further compressing under the combined action of temperature and pressure to obtain a cured and molded fiber plate, wherein the curing furnace is heated by adopting electric heating;
step seven, transverse
Obtaining a neat section of the cured and molded fiber board along the vertical direction of the movement of the board material through servo violence, so that the neat section accords with the length and the width of the board blank entering a hot press;
step eight, hot press forming
Further compressing the solidified and molded plate blank by using a hot press to increase the density of the plate blank to a preset value, so as to obtain a hot-press molded high-density mineral cotton fiberboard, wherein the hot press is a multi-station intermittent hot press or a continuous hot press, the pressure of the hot press is 1-100 MPa, the hot pressing temperature is 250-700 ℃, and the hot pressing time is 3-20 min;
ninth step, cutting
Cutting the high-density mineral cotton fiber board subjected to hot press molding according to a preset size;
step ten, packaging or post-veneering packaging
And packaging the high-density mineral cotton fiberboard cut along the edge or packaging the high-density mineral cotton fiberboard cut along the edge after facing.
Further, the density of the prepared high-density mineral cotton fiberboard is 250-1500 kg/m3The tensile strength is 0.15-0.7 MPa, the compressive strength is 13-75 MPa, the ignition point is 600-1000 ℃, and the single-point anchoring force is 300-1500N.
Furthermore, the prepared high-density mineral cotton fiber board can be used for replacing wood boards for home decoration, can be used for replacing wood materials for equipment packaging, and can also be used as a wall material.
The invention has the beneficial effects that:
compared with the blockboard, the high-density mineral cotton fiberboard for replacing the blockboard has the characteristics of high burning point and good fireproof performance, and no pollutants such as wastewater, waste residues and the like are discharged in the production process, so that the felling of forest resources can be reduced, and the environment is protected; compared with the traditional mineral cotton fiberboard, the mineral cotton fiberboard has the characteristics of high density, high strength, high tensile and compressive strength and the like; the prepared high-density mineral cotton fiberboard for replacing a blockboard has no harmful gas emission in the use process, has wide application range, can be used for the aspects of building home decoration, packaging and the like, and can also be used as a wall material.
Drawings
FIG. 1 is a schematic view showing the overall structure of the production line apparatus of the present invention;
FIG. 2 is a schematic view of the construction of a melting furnace system according to the invention;
FIG. 3 is a process flow diagram of the production line of the present invention;
reference numerals: 101. the system comprises a side-turning automobile walking platform, 102, a side-turning automobile, 103, a material bin, 104, an automatic vibration material outlet of the material bin, 105, a daily material bin with a weighing function, 106, a material mixing hopper, 107, a horizontal belt conveyor, 108, a lifter, 109, a melting furnace system, 1091, a rock wool heating preheating furnace, 1092, a material secondary dispersion pipe, 1093, a melting furnace, 1094, an overflow channel, 1095, a speed-regulating, tempering and heat-preserving molten pool, 110 and a working platform.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the accompanying drawings.
Example 1
A production line device of high-density mineral cotton fiberboard comprises a feeding system and a melting furnace system;
the feeding system comprises a working platform 110, a side-turning automobile walking platform 101 which is vertically arranged is arranged on one side end face of the working platform 110, the cross section of the side-turning automobile walking platform 101 is in a trapezoid shape, the two sides of which are inclined planes, or in an isosceles trapezoid shape, a side-turning automobile 102 which transversely moves along the end face of the side-turning automobile walking platform 101 is arranged on the end face of the side-turning automobile walking platform 101, a plurality of material bins 103 which are used for bearing different raw material types are correspondingly arranged on one side of the working platform, which is positioned at the horizontal section of the side-turning automobile walking platform 101, the material bins 103 are arranged in parallel, the side-turning automobile walking platform 101 is higher than the material bins 103, and when a hopper of the side;
the bottom surface of the material bin 103 is arranged in a downward inclined manner, one end of the material bin far away from the side-turning automobile is provided with a material bin automatic vibration discharge port 104 corresponding to the bottom surface of the material bin, the material bin automatic vibration discharge port 104 is realized by arranging a vibration motor at the lower part of the bottom surface of one end of the material bin near to the side-turning automobile, the bottom of the material bin automatic vibration discharge port 104 is correspondingly provided with a mixing hopper 106, a belt weighing daily bin 105 is correspondingly arranged between the material bin automatic vibration discharge port 104 and the mixing hopper 106, a horizontal belt conveyor 107 for controlling the mixing hopper 106 to move is arranged below a base, one end of the mixing hopper 106 is hinged with the base, the intelligent control system can control the mixing hopper 106 to turn on the base, the horizontal belt conveyor 107 is arranged in parallel to the side-turning automobile walking platform 101, one side of the horizontal belt conveyor 107 is provided with an elevator 108 which is, the lifting machine 108 is used for conveying the mixing hopper to the top of the mixing hopper, and the bottom of the tail end of the lifting machine 108 is correspondingly provided with a melting furnace system 109.
The melting furnace system 109 comprises a melting furnace 1093 corresponding to the tail end of the elevator, the melting furnace 1093 is connected with a speed-regulating tempering heat-preserving molten pool 1095 through an overflow channel 1094, the speed-regulating tempering heat-preserving molten pool 1095 is mainly used for mixing and temperature equalization of liquid materials, a heating device is arranged in the melting furnace 1093, the heating device comprises a heating pipe inserted into the melting furnace, the heating pipe is made of a silicon-molybdenum rod and a protection pipe, and the materials are directly heated through heat transfer;
the melting furnace system 109 still includes the rock wool heating preheater 1091 that sets up between the end of melting furnace 1093 and lifting machine 108, rock wool heating preheater 1091 is vertical structure, and the material gets into the preheater after, automatic downward flow under the action of gravity, and automatic compounding, self-heating are realized to the in-process that flows, the discharge gate of rock wool heating preheater 1091 is connected with melting furnace 1093 through a plurality of material secondary dispersion pipe 1092, disperses the material to a plurality of positions of melting furnace through the material secondary dispersion pipe, is convenient for the dispersion heating, prevents to pile up.
The production line equipment further comprises a cotton making system, a cotton collecting system, a prepressing system, a curing forming system, a servo transverse system, a hot press forming system, a cutting system and a packaging system which are connected in sequence, and the production line equipment further comprises an intelligent control system and a remote visual system, wherein the intelligent control system is used for controlling the operation of working elements in the feeding system, the melting furnace system, the cotton making system, the cotton collecting system, the prepressing system, the curing forming system, the servo transverse system, the hot press forming system, the cutting system and the packaging system;
a preparation method of a high-density mineral cotton fiberboard comprises the steps of feeding, melting or melting after preheating, glue spraying and fiber forming, cotton collecting, pendulum bob pleating, prepressing, curing and forming, transverse, hot press forming, cutting, packaging or veneering and then packaging, and specifically comprises the following steps:
step one, feeding
The method comprises the steps that raw materials are respectively laterally turned to corresponding material bins 103 through a side-turning automobile 102 according to the types of fed materials, the raw materials of the material bins 103 flow into a weighing daily bin 105 through a material bin automatic vibration discharge port 104, the materials of the weighing daily bin 105 are weighed according to the proportion through a discharge port of the weighing daily bin 105 and then automatically flow into corresponding mixing hoppers 106 to be uniformly mixed, the mixing hoppers 106 move to the bottom of a lifting machine on a horizontal belt conveyor, and the mixing hoppers are lifted to the tops of the mixing hoppers through the lifting machine 108 to be located above a melting furnace system 109;
step two, melting after melting or preheating
The raw materials conveyed to the upper part of the melting furnace system are firstly turned over to a preheating furnace for preheating and then conveyed into a melting furnace 1093 through a material secondary dispersion pipe 1092 for heating and melting, the heated and melted liquefied materials automatically overflow from an overflow channel 1094 of the melting furnace and flow into a speed-regulating tempering heat-preserving molten pool 1095 for regulating the component uniformity of the liquefied materials and regulating the acidity required by the finished cotton;
step three, spraying glue to form fiber
The liquefied material with the adjusted acidity is fed into a centrifugal machine of a cotton making system, the liquefied material is thrown into filamentous rock wool under the high-speed rotation condition of the centrifugal machine, and atomized adhesive is sprayed onto the surface of the filamentous rock wool through a spray hole during fiber forming to obtain the adhesive-sprayed filamentous rock wool;
step four, cotton collecting and pendulum mass pleating
Collecting the fiber filamentous rock wool sprayed with glue by a horn-shaped swing hopper in a cotton collecting system, swinging the swing hopper left and right along the edge of a discharge port, pleating the fiber filamentous rock wool and uniformly paving the fiber filamentous rock wool on a paving machine to ensure that the rock wool has uniform thickness;
step five, prepressing
The paved glue-sprayed fiber filamentous rock wool is subjected to preliminary molding of a fiber plate blank through a sweeping roller and a prepressing machine of a prepressing system, and the prepressing can adopt a continuous roller type prepressing or a continuous flat pressing type prepressing machine;
step six, curing and forming
Conveying the pre-pressed and primarily formed plate blank to a curing furnace of a curing and forming system, further compressing the plate blank under the combined action of temperature and pressure to obtain a cured and formed fiber plate, conveying the pre-pressed and primarily formed plate blank to the curing furnace of the curing and forming system, removing gas in the plate blank, increasing the density of the plate blank, so that rock wool fibers are tightly adhered and pressed together, providing a temperature condition for hot pressing, and shortening the hot-pressing and forming period, wherein the curing furnace is heated by electric heating at the temperature of 200-300 ℃ to replace natural gas for heating, reduce emission and have the characteristics of environmental protection;
step seven, transverse
Obtaining a neat section of the cured and molded fiber board along the vertical direction of the movement of the board material through servo violence, so that the neat section accords with the length and the width of the board blank entering a hot press;
step eight, hot press forming
Further compressing the solidified and molded plate blank by using a hot press to increase the density of the plate blank to a preset value so as to obtain a hot-press molded high-density mineral cotton fiberboard, wherein the hot press is a multi-station intermittent hot press or a continuous hot press, the hot press can realize single-layer or multi-layer hot pressing to meet the requirement of continuous production, the pressure of the hot press is 1-100 MPa, the hot pressing temperature is 250-700 ℃, and the hot pressing time is 3-20 min;
ninth step, cutting
Cutting the high-density mineral cotton fiber board subjected to hot press molding according to a preset size;
step ten, packaging or post-veneering packaging
And packaging the high-density mineral cotton fiberboard cut along the edge or packaging the high-density mineral cotton fiberboard cut along the edge after facing.
Further, the raw materials for preparing the high-density mineral cotton fiberboard are as follows according to parts by weight: 40-70 parts of industrial solid waste, 25-50 parts of natural ore, 0.5-5 parts of mineral wool binder, 0.1-0.6 part of water repellent and 1-5 parts of additive, wherein the density of the prepared high-density mineral wool fiberboard is 250-1500 kg/m3The tensile strength is 0.15-0.7 MPa, the compressive strength is 13-75 MPa, the ignition point is 600-1000 ℃, the single-point anchoring force is 300-1500N, the fiber length in the prepared high-density mineral cotton fiber board is more than 95% and more than 5cm, and the prepared high-density mineral cotton fiber board comprises the following chemical components in parts by mass: 36-48 parts of SiO224-35 parts of CaO, 4-9 parts of MgO and 8-15 parts of AI2O3And 1-5 parts of Fe2O31-5 parts of other components.
Wherein the industrial solid waste comprises one or a combination of two or more of, but not limited to, slag, fly ash, phosphorus beneficiation, the natural ore comprises one or a combination of two or more of, but not limited to, basalt, dolomite, diabase, limestone, quartz stone, the mineral wool binder comprises, but is not limited to, formaldehyde-free mineral wool binder, such as a water soluble acrylic acid polymer binder, the water repellent comprises, but is not limited to, one of molten paraffin or polysiloxane emulsion, and the additive comprises, but is not limited to, one of ammonia water, anti-dust oil, silane coupling agent.
Furthermore, the prepared high-density mineral cotton fiber board can be used for replacing wood boards for home decoration, can be used for replacing wood materials for equipment packaging, and can also be used as a wall material.
Example 2
A production line device of high-density mineral cotton fiberboard comprises a feeding system and a melting furnace system;
the feeding system comprises a working platform 110, a side-turning automobile walking platform 101 which is vertically arranged is arranged on one side end face of the working platform 110, the cross section of the side-turning automobile walking platform 101 is in a trapezoid shape, the two sides of which are inclined planes, or in an isosceles trapezoid shape, a side-turning automobile 102 which transversely moves along the end face of the side-turning automobile walking platform 101 is arranged on the end face of the side-turning automobile walking platform 101, a plurality of material bins 103 which are used for bearing different raw material types are arranged on one side of the working platform, which is positioned at the horizontal section of the side-turning automobile walking platform 101, the material bins 103 are arranged in parallel, the side-turning automobile walking platform 101 is higher than the material bins 103, and when a hopper of the side;
the bottom surface of the material bin 103 is arranged in a downward inclined manner, one end of the material bin far away from the side-turning automobile is provided with a material bin automatic vibration discharge port 104 corresponding to the bottom surface of the material bin, the material bin automatic vibration discharge port 104 is realized by arranging a vibration motor at the lower part of the bottom surface of one end of the material bin near to the side-turning automobile, the bottom of the material bin automatic vibration discharge port 104 is correspondingly provided with a mixing hopper 106, a belt weighing daily bin 105 is correspondingly arranged between the material bin automatic vibration discharge port 104 and the mixing hopper 106, a horizontal belt conveyor 107 for controlling the mixing hopper 106 to move is arranged below a base, one end of the mixing hopper 106 is hinged with the base, the intelligent control system can control the mixing hopper 106 to turn on the base, the horizontal belt conveyor 107 is arranged in parallel to the side-turning automobile walking platform 101, one side of the horizontal belt conveyor 107 is provided with an elevator 108 which is, the lifting machine 108 is used for conveying the mixing hopper to the top of the mixing hopper, and the bottom of the tail end of the lifting machine 108 is correspondingly provided with a melting furnace system 109.
The melting furnace system 109 comprises a melting furnace 1093 corresponding to the tail end of the elevator, the melting furnace 1093 is connected with a speed-regulating tempering heat-preserving molten pool 1095 through an overflow channel 1094, the speed-regulating tempering heat-preserving molten pool 1095 is mainly used for mixing and temperature equalization of liquid materials, a heating device is arranged in the melting furnace 1093, the heating device comprises a heating pipe inserted into the melting furnace, the heating pipe is made of a silicon-molybdenum rod and a protection pipe, and the materials are directly heated through heat transfer;
the production line equipment also comprises a cotton making system, a cotton collecting system, a prepressing system, a curing forming system, a servo transverse data system, a hot press forming system, a cutting system, a packaging system, an intelligent control system and a remote visual system, wherein the intelligent control system is used for controlling the operation of working elements in the feeding system, the melting furnace system, the cotton making system, the cotton collecting system, the prepressing system, the curing forming system, the servo transverse data system, the hot press forming system, the cutting system and the packaging system;
a preparation method of a high-density mineral cotton fiberboard comprises the steps of feeding, melting or melting after preheating, glue spraying and fiber forming, cotton collecting, pendulum bob pleating, prepressing, curing and forming, transverse, hot press forming, cutting, packaging or veneering and then packaging, and specifically comprises the following steps:
step one, feeding
The method comprises the steps that raw materials are respectively laterally turned to corresponding material bins 103 through a side-turning automobile 102 according to the types of fed materials, the raw materials of the material bins 103 flow into a weighing daily bin 105 through a material bin automatic vibration discharge port 104, the materials of the weighing daily bin 105 are weighed according to the proportion through a discharge port of the weighing daily bin 105 and then automatically flow into corresponding mixing hoppers 106 to be uniformly mixed, the mixing hoppers 106 move to the bottom of a lifting machine on a horizontal belt conveyor, and the mixing hoppers are lifted to the tops of the mixing hoppers through the lifting machine 108 to be located above a melting furnace system 109;
step two, melting after melting or preheating
The raw materials conveyed to the upper part of the melting furnace system are directly conveyed into the melting furnace for heating and melting through the side turning of the mixing hopper, the heated and melted liquefied materials automatically overflow from an overflow channel 1094 of the melting furnace, flow into a speed-regulating, tempering and heat-preserving molten pool 1095 to regulate the component uniformity of the liquefied materials and regulate the acidity required by cotton formation;
step three, spraying glue to form fiber
The liquefied material with the adjusted acidity is fed into a centrifugal machine of a cotton making system, the liquefied material is thrown into filamentous rock wool under the high-speed rotation condition of the centrifugal machine, and atomized adhesive is sprayed onto the surface of the filamentous rock wool through a spray hole during fiber forming to obtain the adhesive-sprayed filamentous rock wool;
step four, cotton collecting and pendulum mass pleating
Collecting the fiber filamentous rock wool sprayed with glue by a horn-shaped swing hopper in a cotton collecting system, swinging the swing hopper left and right along the edge of a discharge port, pleating the fiber filamentous rock wool and uniformly paving the fiber filamentous rock wool on a paving machine to ensure that the rock wool has uniform thickness;
step five, prepressing
The paved glue-sprayed fiber filamentous rock wool is subjected to preliminary molding of a fiber plate blank through a sweeping roller and a prepressing machine of a prepressing system, and the prepressing can adopt a continuous roller type prepressing or a continuous flat pressing type prepressing machine;
step six, curing and forming
Conveying the pre-pressed and primarily formed plate blank to a curing furnace of a curing and forming system, further compressing the plate blank under the combined action of temperature and pressure to obtain a cured and formed fiber plate, conveying the pre-pressed and primarily formed plate blank to the curing furnace of the curing and forming system, removing gas in the plate blank, increasing the density of the plate blank, so that rock wool fibers are tightly adhered and pressed together, providing a temperature condition for hot pressing, and shortening the hot-pressing and forming period, wherein the curing furnace is heated by electric heating at the temperature of 200-300 ℃ to replace natural gas for heating, reduce emission and have the characteristics of environmental protection;
step seven, transverse
Obtaining a neat section of the cured and molded fiber board along the vertical direction of the movement of the board material through servo violence, so that the neat section accords with the length and the width of the board blank entering a hot press;
step eight, hot press forming
Further compressing the solidified and molded plate blank by using a hot press to increase the density of the plate blank to a preset value so as to obtain a hot-press molded high-density mineral cotton fiberboard, wherein the hot press is a multi-station intermittent hot press or a continuous hot press, the hot press can realize single-layer or multi-layer hot pressing to meet the requirement of continuous production, the pressure of the hot press is 1-100 MPa, the hot pressing temperature is 250-700 ℃, and the hot pressing time is 3-20 min;
ninth step, cutting
Cutting the high-density mineral cotton fiber board subjected to hot press molding according to a preset size;
step ten, packaging or post-veneering packaging
And packaging the high-density mineral cotton fiberboard cut along the edge or packaging the high-density mineral cotton fiberboard cut along the edge after facing.
Further, the raw materials for preparing the high-density mineral cotton fiberboard are as follows according to parts by weight: 40-70 parts of industrial solid waste, 25-50 parts of natural ore, 0.5-5 parts of mineral wool binder, 0.1-0.6 part of water repellent and 1-5 parts of additive, wherein the density of the prepared high-density mineral wool fiberboard is 250-1500 kg/m3The tensile strength is 0.15-0.7 MPa, the compressive strength is 13-75 MPa, the ignition point is 600-1000 ℃, the single-point anchoring force is 300-1500N, the fiber length in the prepared high-density mineral cotton fiber board is more than 95% and more than 5cm, and the prepared high-density mineral cotton fiber board comprises the following chemical components in parts by mass: 36-48 parts of SiO224-35 parts of CaO, 4-9 parts of MgO and 8-15 parts of AI2O3And 1-5 parts of Fe2O31-5 parts of other components.
Wherein the industrial solid waste comprises one or a combination of two or more of, but not limited to, slag, fly ash, phosphorus beneficiation, the natural ore comprises one or a combination of two or more of, but not limited to, basalt, dolomite, diabase, limestone, quartz stone, the mineral wool binder comprises, but is not limited to, formaldehyde-free mineral wool binder, such as a water soluble acrylic acid polymer binder, the water repellent comprises, but is not limited to, one of molten paraffin or polysiloxane emulsion, and the additive comprises, but is not limited to, one of ammonia water, anti-dust oil, silane coupling agent.
Furthermore, the prepared high-density mineral cotton fiber board can be used for replacing wood boards for home decoration, can be used for replacing wood materials for equipment packaging, and can also be used as a wall material.
While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a production line equipment of high density mineral wool fiberboard which characterized in that: comprises a feeding system and a melting furnace system;
the feeding system comprises a working platform (110), a side-turning automobile walking platform (101) which is vertically arranged is arranged on one side end face of the working platform (110), the cross section of the side-turning automobile walking platform (101) is in a trapezoid shape with two inclined sides, a side-turning automobile (102) which transversely moves along the end face of the side-turning automobile walking platform is arranged on the end face of the side-turning automobile walking platform (101), a plurality of material bins (103) used for bearing different raw material types are arranged on one side of the working platform, which is positioned at the horizontal section of the side-turning automobile walking platform (101), and a hopper of the side-turning automobile (102) rotates towards the material bins (103) when turning over;
the bottom surface of the material bin (103) is arranged in a downward inclined manner, one end of the material bin, which is far away from the side-turning automobile, is provided with an automatic material bin vibration discharge port (104) corresponding to the bottom surface, the bottom of the automatic material bin vibration discharge port (104) is correspondingly provided with a material mixing hopper (106), a belt weighing daily bin (105) is correspondingly arranged between the automatic vibration discharge port (104) of the material bin and the mixing hopper (106), a horizontal belt conveyor (107) for controlling the mixing hopper (106) to move is arranged below the base of the mixing hopper, the horizontal belt conveyor (107) is arranged in parallel with the side-turning automobile walking platform (101), a lifter (108) which is arranged upwards and slantways is arranged at one side of the horizontal belt conveyor (107), the lifter (108) is used for conveying the mixing hopper to the top of the lifter, and the bottom of the tail end of the lifter (108) is correspondingly provided with a melting furnace system (109).
2. A production line apparatus for high density mineral wool fiberboard as set forth in claim 1, wherein: the side-turning automobile walking platform (101) is higher than the material bin (103).
3. A production line apparatus for high density mineral wool fiberboard as set forth in claim 1, wherein: the melting furnace system (109) comprises a melting furnace (1093) corresponding to the tail end of the lifter, the melting furnace (1093) is connected with a speed-regulating tempering heat-preserving molten pool (1095) through an overflow channel (1094), and a heating device is arranged in the melting furnace (1093).
4. A production line apparatus of high density mineral wool fiberboard as set forth in claim 3, wherein: the heating device comprises a heating pipe inserted into the melting furnace, and the heating pipe is made of a silicon-molybdenum rod and a protection pipe.
5. A production line apparatus of high density mineral wool fiberboard as set forth in claim 3, wherein: the melting furnace system (109) further comprises a rock wool heating preheating furnace (1091) arranged between the melting furnace (1093) and the tail end of the lifting machine (108), and a discharge hole of the rock wool heating preheating furnace (1091) is connected with the melting furnace (1093) through a plurality of material secondary dispersion pipes (1092).
6. A production line apparatus of high density mineral wool fiberboard as set forth in claim 5, wherein: the rock wool heating preheating furnace (1091) is of a vertical structure.
7. A production line apparatus for high density mineral wool fiberboard as set forth in claim 1, wherein: the production line equipment further comprises a cotton making system, a cotton collecting system, a prepressing system, a curing forming system, a servo transverse system, a hot-press forming system, a cutting system, a packaging system, an intelligent control system and a remote visual system.
8. The method of making a high density mineral wool fiberboard of claim 1, wherein: including material loading, melting or melt after preheating, spout gluey fibre-forming, collection cotton, pendulum are wrinkled, pre-compaction, solidification forming, violently according, hot briquetting, cutting, packing or packing behind the wainscot, specific step is:
step one, feeding
The method comprises the steps that raw materials are respectively turned to corresponding material bins (103) through a side-turning automobile (102) according to the types of the fed materials, the raw materials of the material bins (103) respectively flow into a weighing daily bin (105) through an automatic material bin vibration discharge port (104), the materials of the weighing daily bin (105) are weighed according to the proportion through the discharge port of the weighing daily bin (105) and then automatically flow into corresponding mixing hoppers (106) to be uniformly mixed, the mixing hoppers (106) move to the bottom of a lifting machine on a horizontal belt conveyor, and the mixing hoppers are lifted to the tops of the lifting machine (108) through the lifting machine (108) to enable the mixing hoppers to be located above a melting furnace system (109);
step two, melting after melting or preheating
The raw materials conveyed to the upper part of the melting furnace system are directly conveyed into the melting furnace to be heated and melted through the side turning of the mixing hopper or the raw materials conveyed to the upper part of the melting furnace system are firstly conveyed into the preheating furnace to be preheated and then conveyed into the melting furnace (1093) through a material secondary dispersion pipe (1092) to be heated and melted, the heated and melted liquefied materials automatically overflow from an overflow channel (1094) of the melting furnace and flow into a speed-regulating, tempering and heat-preserving molten pool (1095) to regulate the component uniformity of the liquefied materials and regulate the acidity of the liquefied materials;
step three, spraying glue to form fiber
The liquefied material with the adjusted acidity is fed into a centrifugal machine of a cotton making system, the liquefied material is thrown into filamentous rock wool under the high-speed rotation condition of the centrifugal machine, and atomized adhesive is sprayed onto the surface of the filamentous rock wool through a spray hole during fiber forming to obtain the adhesive-sprayed filamentous rock wool;
step four, cotton collecting and pendulum mass pleating
Collecting the fiber filamentous rock wool sprayed with glue by a horn-shaped swing hopper in a cotton collecting system, swinging the swing hopper left and right along the edge of a discharge port, pleating the fiber filamentous rock wool and uniformly paving the fiber filamentous rock wool on a paving machine to ensure that the rock wool has uniform thickness;
step five, prepressing
The paved glue-sprayed fiber filamentous rock wool is subjected to preliminary molding of a fiber plate blank through a sweeping roller and a prepressing machine of a prepressing system, and the prepressing can adopt a continuous roller type prepressing or a continuous flat pressing type prepressing machine;
step six, curing and forming
Conveying the pre-pressed and preliminarily molded plate blank to a curing furnace of a curing molding system, and further compressing under the combined action of temperature and pressure to obtain a cured and molded fiber plate, wherein the curing furnace is heated by adopting electric heating;
step seven, transverse
Obtaining a neat section of the cured and molded fiber board along the vertical direction of the movement of the board material through servo violence, so that the neat section accords with the length and the width of the board blank entering a hot press;
step eight, hot press forming
Further compressing the solidified and molded plate blank by using a hot press to increase the density of the plate blank to a preset value, so as to obtain a hot-press molded high-density mineral cotton fiberboard, wherein the hot press is a multi-station intermittent hot press or a continuous hot press, the pressure of the hot press is 1-100 MPa, the hot pressing temperature is 250-700 ℃, and the hot pressing time is 3-20 min;
ninth step, cutting
Cutting the high-density mineral cotton fiber board subjected to hot press molding according to a preset size;
step ten, packaging or post-veneering packaging
And packaging the high-density mineral cotton fiberboard cut along the edge or packaging the high-density mineral cotton fiberboard cut along the edge after facing.
9. The method of making a high density mineral wool fiberboard of claim 8, wherein: the density of the prepared high-density mineral cotton fiberboard is 250-1500 kgm3The tensile strength is 0.15-0.7 MPa, the compressive strength is 13-75 MPa, the ignition point is 600-1000 ℃, and the single-point anchoring force is 300-1500N.
10. The method of making a high density mineral wool fiberboard of claim 9, wherein: the prepared high-density mineral cotton fiber board can be used for replacing wood boards for family decoration, can be used for replacing wood materials for equipment packaging, and can also be used as wall materials.
CN202010106133.2A 2020-02-21 2020-02-21 Production line equipment and preparation method of high-density mineral cotton fiberboard Expired - Fee Related CN111409289B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010106133.2A CN111409289B (en) 2020-02-21 2020-02-21 Production line equipment and preparation method of high-density mineral cotton fiberboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010106133.2A CN111409289B (en) 2020-02-21 2020-02-21 Production line equipment and preparation method of high-density mineral cotton fiberboard

Publications (2)

Publication Number Publication Date
CN111409289A true CN111409289A (en) 2020-07-14
CN111409289B CN111409289B (en) 2022-04-12

Family

ID=71487514

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010106133.2A Expired - Fee Related CN111409289B (en) 2020-02-21 2020-02-21 Production line equipment and preparation method of high-density mineral cotton fiberboard

Country Status (1)

Country Link
CN (1) CN111409289B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113306010A (en) * 2021-04-23 2021-08-27 陈伟东 Raw material pre-manufacturing device for silicate fiber board
CN113896454A (en) * 2021-11-18 2022-01-07 深圳市巴克风实业有限公司 Preparation method of inorganic fiber density board
CN113942245A (en) * 2021-09-28 2022-01-18 金隅星节能保温科技(唐山)有限公司 Manufacturing process of rock wool fiberboard

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201309442Y (en) * 2008-08-20 2009-09-16 秦皇岛首秦金属材料有限公司 Device for unloading goods transported by side-tipping type automobile
CN109775960A (en) * 2018-12-26 2019-05-21 洛阳西格马炉业股份有限公司 A kind of heating system of mineral wool and the method for heating mineral wool with it
CN110482870A (en) * 2019-08-15 2019-11-22 湖南科技学院 A kind of rock wool and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201309442Y (en) * 2008-08-20 2009-09-16 秦皇岛首秦金属材料有限公司 Device for unloading goods transported by side-tipping type automobile
CN109775960A (en) * 2018-12-26 2019-05-21 洛阳西格马炉业股份有限公司 A kind of heating system of mineral wool and the method for heating mineral wool with it
CN110482870A (en) * 2019-08-15 2019-11-22 湖南科技学院 A kind of rock wool and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113306010A (en) * 2021-04-23 2021-08-27 陈伟东 Raw material pre-manufacturing device for silicate fiber board
CN113942245A (en) * 2021-09-28 2022-01-18 金隅星节能保温科技(唐山)有限公司 Manufacturing process of rock wool fiberboard
CN113896454A (en) * 2021-11-18 2022-01-07 深圳市巴克风实业有限公司 Preparation method of inorganic fiber density board

Also Published As

Publication number Publication date
CN111409289B (en) 2022-04-12

Similar Documents

Publication Publication Date Title
CN111409289B (en) Production line equipment and preparation method of high-density mineral cotton fiberboard
EP0767762B1 (en) Production of mineral fibres
EP2665687B1 (en) Pre-treatment of raw material for producing basalt fibers
CN105439439A (en) Preparation method of rock wool heat preservation material
CN107337353A (en) A kind of environmentally friendly rock wool and the production method of environmentally friendly rock wool
CN102442771A (en) Method for producing rock wool
CN111253075B (en) Rock wool product and preparation method thereof
CN104004873A (en) Process for co-production of nickel pig iron and rock wool products by using laterite-nickel ore
CA2764551C (en) Method of making particulate material
CN113265767A (en) Mineral wool production device and method for plasma danger waste ash melting system
CN111393030A (en) High-density mineral cotton fiberboard for replacing blockboard and preparation method thereof
US20130119294A1 (en) Method for Manufacturing an Aerogel-Containing Composite and Composite Produced by that Method
US20120183774A1 (en) Method of treating stone wool
JP4670149B2 (en) A method for producing rock wool made from granulated products of municipal waste incineration ash
FI76062B (en) FOERFARANDE FOER FRAMSTAELLNING AV MINERALULLSPRODUKTER.
CN108625504A (en) A kind of heat preservation rock plate and its manufacturing method with absorbing sound and lowering noise function
WO2006015846A1 (en) Method for producing a molten mineral and shaped bricks
SU1291023A3 (en) Method of manufacturing refractory heat-insulating three-layer building slabs
KR100665393B1 (en) A method for manufacturing rock wool using municipal waste incineration ash as raw material
CN113651525B (en) Rock wool and preparation method and preparation device thereof
GB1017473A (en) Temperature resistant glass fibre reinforced articles
CN117700152A (en) Rock wool fiberboard and preparation method thereof
CN117779342A (en) Mineral fiber decorative plate directly prepared from liquid hot slag
CN111411716A (en) Composite heat insulation structure of building outer wall and construction method thereof
KR20210090944A (en) MiNERAL WOOL USING FLY ASHES AND ADDITIVE AND METHOD OF MANUFACTURING THE SAME

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20220412

CF01 Termination of patent right due to non-payment of annual fee