CN108821665A - A kind of perforated sound-absorbing ceiling and its production technology - Google Patents
A kind of perforated sound-absorbing ceiling and its production technology Download PDFInfo
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- CN108821665A CN108821665A CN201810996298.4A CN201810996298A CN108821665A CN 108821665 A CN108821665 A CN 108821665A CN 201810996298 A CN201810996298 A CN 201810996298A CN 108821665 A CN108821665 A CN 108821665A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00603—Ceiling materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a kind of perforated sound-absorbing ceiling and its production technologies, belong to perforated sound-absorbing ceiling production technical field, the production technology of the perforated sound-absorbing ceiling includes the processes such as raw material preparation, the preparation of slab slurry, slab manufacture, plate embryo is steam-cured, overlay film of becoming a useful person.This method can provide a kind of sound absorption qualities are excellent, cost is relatively low, convenient construction, toughness preferably, A1 grade of fire-protection rating, humidity resistance it is excellent using trade waste be the low-density perforated sound-absorbing ceiling that raw material produces production technology.
Description
Technical field
The present invention relates to perforated sound-absorbing ceiling production technical fields, more particularly relate to perforated sound-absorbing ceiling and its life
Production. art.
Background technique
Currently, giving off a large amount of flyash with the thermal power plant of coal power generation, its land occupation pollutes environment, in electricity
A kind of public hazards are formd around factory, development and utilization flyash is also the task of top priority.
Perforated sound-absorbing ceiling is a kind of general construction material, because of its A1 grades of fire prevention, moisture-proof, sound-insulating and heat-insulating, high intensity
Speciality, can be widely used in the furred ceiling of building, partition wall, exterior wall, on furniture liner plate and cabinet liner and decorative cover, with
The flyash and carbide slag of high parameter be raw material ratio, then through the special techniques such as overmolding, pressurization, high-temperature steam curing handle and
It is made.Perforated sound-absorbing ceiling has many advantages, such as that fire prevention, moisture-proof, sound insulation, Anti-moth-eating, durability are strong, is a kind of with Optimality
The novel building and industrial sheet of energy.
In the prior art, perforated sound-absorbing ceiling similar products include cement plate and calcium silicate board, but major part uses
The former materials such as cement, quartz sand, wood pulp cellulose, a large amount of raw ore of the raw materials consumption used, cause its sound-absorbing effect poor.And
Though even to the utilization of flyash and carbide slag in the sector be briefly described, this two proportional quantity is all relatively fewer, only makees
To assist materials'use, and asbestos are participated in inside part of cement plate and calcium silicate board as fibrous material, have to human body certain
Harmfulness.
Summary of the invention
In order to overcome the drawbacks of the prior art, technical problem to be solved by the present invention lies in propose a kind of perforated sound-absorbing day
Card and its production technology, be capable of providing a kind of sound absorption qualities are excellent, cost is relatively low, convenient construction, toughness preferably, fire-protection rating
A1 grades, the excellent production work using the low-density perforated sound-absorbing ceiling that trade waste is raw material production of waterproof and dampproof performance
Skill.
For this purpose, the present invention uses following technical scheme：
The present invention provides a kind of perforated sound-absorbing ceiling, the plate body is divided into upper and lower part, and the top is equipped with the
One sound-absorbing slot, the first sound-absorbing slot and plate body surface angle are 60 degree, and the lower part is equipped with the second sound-absorbing slot, described the
Two sound-absorbing slots and plate body surface angle are 60 degree, and the first sound-absorbing slot and the second sound-absorbing slot two sides are equipped with hemispherical
The diameter of protrusion, the first sound-absorbing slot and the second sound-absorbing slot is 1mm, the first sound-absorbing slot and the second sound-absorbing slot inner sidewall
It communicates to form sound-absorption hole, the area communicated is the half of the first sound-absorbing slot and the second sound-absorbing slot inner sidewall area, the suction
Sound hole passes through plate body.
The present invention also provides a kind of production technologies of perforated sound-absorbing ceiling, include the following steps：
S1：Wood fibre extracts preparation：Waste and old kraft paper bag or waste carton are crushed, comminution, separation, after mashing
Extraction is made wood fibre slurry and uses as perforated sound-absorbing ceiling raw material；
The carbide slag of recycling is transported in settling tank, the impurity such as ferrosilicon and carbon granules are separated, obtains the electricity that partial size is less than 1mm
The carbide slag slurry is introduced ultrasonic activation sieve by rock ballast slurry, and the sieve pore of the ultrasonic activation sieve is 300-400 mesh,
The flyash of recycling is subjected to grinding screening process, the flyash material that partial size is less than 1mm is obtained, by screened place
The flyash of reason carries out high temperature carbon removal processing, obtains the flyash handled through carbon removal,
Magnetic will be introduced with after the flyash of carbon removal processing is sufficiently mixed through the carbide slag slurry of ultrasonic activation sieve purification
Mixed raw material is obtained behind the region that field intensity is 0.1-0.5T, the mass ratio of carbide slag and the flyash in the mixed raw material
It is 1：1-3；
S2：The preparation of slab slurry：Mixed raw material and other raw materials are pressed into following weight：70-85 parts of mixed raw material,
1-3 parts of aqueous dimethylformamide potassium silicate, 1 part of polyester fiber, 2 parts of polyacrylamide, 2-5 parts of vinylon fibre, 15-25 parts of cement, china clay
5-8 parts, 1 part of iron oxide, 9-13 parts of wood fibre slurry；It is added water and stirred after mixing uniformly, it is stand-by that mixed slurry is made；
S3：Mixed slurry is put into blender, water is added to be stirred, the total amount of water account for by weight percentage mixed slurry and
The 80-85% of the total amount of water；
S4：Slab manufacture：Slab slurry made from step S2 is starched by stream into corresponding lower mold, then covers upper mold
Tool, natural-dehydration to stock quality percentage 76-80% are made slab after suppressing upper mold and lower mold by roller, take off
Mould；
S5：Slab is steam-cured：After demoulding, then it is placed in steam-cured in still kettle, formation semi-finished product；
S6：Finished product plate：By semifinished sheet after drying machine drying, moisture content is no more than 10% in slab, warp
The surface treatment procedure of edging chamfering is crossed, finished product perforated sound-absorbing ceiling is cut into the ruler of 600*600 or 600*1200
It is very little.
In preferably technical solution of the invention, the sieve pore of the ultrasonic activation sieve is 350 mesh.
In preferably technical solution of the invention, the carbide slag slurry through ultrasonic activation sieve purification is handled with through carbon removal
Flyash be sufficiently mixed after introduce magnetic field strength be 0.2-0.4T region after mixed raw material.
In preferably technical solution of the invention, in the S1 step, the mass ratio of carbide slag and flyash is 1：2.5.
In preferably technical solution of the invention, in the S2 step, mixed raw material and other raw materials are pressed into following weight
Part proportion：78 parts of mixed raw material, 2 parts of aqueous dimethylformamide potassium silicate, 1 part of polyester fiber, 2 parts of polyacrylamide, 3 parts of vinylon fibre,
18 parts of cement, 7 parts of china clay, 1 part of iron oxide, 11 parts of wood fibre slurry.
In preferably technical solution of the invention, in the S3 step, the total amount of water accounts for mixed slurry by weight percentage
With the 83% of the total amount of water.
In preferably technical solution of the invention, after the completion of the step S3, arrives and carry out between the manufacture of step S4 slab, plate
Stock slurry standing time is no more than 45min.
In preferably technical solution of the invention, in the S4 step, natural-dehydration to stock quality percentage 78%.
In preferably technical solution of the invention, during the step S5 steams oxygen, boiler pressure is in 11 megapascal, still kettle
It boosts 4 hours, 10 hours of pressure maintaining, is depressured 6 hours, then air pressure, which drops to 0,1 and as a child opened kettle afterwards, takes plate.
Beneficial effects of the present invention are：
The production technology of perforated sound-absorbing ceiling provided by the invention, perforated sound-absorbing ceiling of the invention is through high-temperature high-pressure
It steams, removes harmful substance, radioactivity survey value is the 10-20% that national regulation allows minimum, belongs to green product, fire prevention etc.
A1 grades of grade, contraction modification coefficient is small, green, and production is simple；Perforated sound-absorbing ceiling prepared by the present invention is without asbestos, close
Spend that low, light-weight, construction efficiency is high, density can reach 0.92g cm3, it is "dead", the health of human body will not be caused to endanger
Evil, carrying is lighter, and construction is more convenient；There is good soundproof effect, is made up of the first sound-absorbing slot of setting and the second sound-absorbing slot
Sound-absorption hole, greatly improve sound absorbing power；On the basis of guaranteeing to prevent fires, is high-strength, the flexural strength of plate is improved, intensity is good,
Long service life；
Using wastes such as a large amount of after processing flyash, carbide slags as raw material, the production cost of product can be reduced,
It economizes on resources, reduce trade waste influences caused by environment, and moisture content is low, by the way that aqueous dimethylformamide silicic acid is added in the feed
Potassium, polyester fiber, polyacrylamide and vinylon fibre have the ability of stronger water suction and release water, and thermal coefficient is less than
0.25, belong to energy-conserving product, can be used for thermal insulation of roof, wall surface heat insulating etc..
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the acoustic ceiling that the specific embodiment of the invention provides.
It is indicated in figure：
1, plate body；2, the first sound-absorbing slot；3, the second sound-absorbing slot；4, raised.
Specific embodiment
Below and pass through specific embodiment to further illustrate the technical scheme of the present invention.
Embodiment one：
Providing a kind of perforated sound-absorbing ceiling, including plate body 1 in embodiment one, the plate body 1 divides for upper and lower part,
The top is equipped with the first sound-absorbing slot 2, and the first sound-absorbing slot 2 is 60 degree with 1 surface angle of plate body, and the lower part is equipped with
Second sound-absorbing slot 3, the second sound-absorbing slot 3 are 60 degree with 1 surface angle of plate body, the first sound-absorbing slot 2 and second
3 two sides of sound-absorbing slot are equipped with hemispherical protuberances 4, and the diameter of the first sound-absorbing slot 2 and the second sound-absorbing slot 3 is 1mm, and described the
One sound-absorbing slot 2 communicates to form sound-absorption hole with 3 inner sidewall of the second sound-absorbing slot, and the area communicated is the first sound-absorbing slot 2 and second
The half of 3 inner sidewall area of sound-absorbing slot, the sound-absorption hole pass through plate body 1, which is made by following steps：
S1：Wood fibre extracts preparation：Waste and old kraft paper bag or waste carton are crushed, comminution, separation, after mashing
Extraction is made wood fibre slurry and uses as perforated sound-absorbing ceiling raw material；
The carbide slag of recycling is transported in settling tank, the impurity such as ferrosilicon and carbon granules are separated, obtains the electricity that partial size is less than 1mm
The carbide slag slurry is introduced ultrasonic activation sieve by rock ballast slurry, and the sieve pore of the ultrasonic activation sieve is 300 mesh,
The flyash of recycling is subjected to grinding screening process, the flyash material that partial size is less than 1mm is obtained, by screened place
The flyash of reason carries out high temperature carbon removal processing, obtains the flyash handled through carbon removal,
Magnetic will be introduced with after the flyash of carbon removal processing is sufficiently mixed through the carbide slag slurry of ultrasonic activation sieve purification
Mixed raw material is obtained behind the region that field intensity is 0.1T, the mass ratio of carbide slag and flyash in mixed raw material is 1：1；
S2：The preparation of slab slurry：Mixed raw material and other raw materials are pressed into following weight：70 parts of mixed raw material, water
1 part of potassium methyl silicate of property, 1 part of polyester fiber, 2 parts of polyacrylamide, 2 parts of vinylon fibre, 15 parts of cement, 5 parts of china clay, iron oxide
1 part, 9 parts of wood fibre slurry；It is added water and stirred after mixing uniformly, it is stand-by that mixed slurry is made；
S3：Mixed slurry is put into blender, water is added to be stirred, the total amount of water account for by weight percentage mixed slurry and
The 85% of the total amount of water, the material accounting 15% of other mixing；
S4：Slab manufacture：Slab slurry made from step S2 is starched by stream into corresponding lower mold, then covers upper mold
Tool, natural-dehydration to stock quality percentage 76-80% are made slab after suppressing upper mold and lower mold by roller, take off
Mould；
S5：Slab is steam-cured：After demoulding, then it is placed in steam-cured in still kettle, in 11 megapascal, still kettle boosts 4 boiler pressure
Hour, 10 hours of pressure maintaining, 6 hours are depressured, then air pressure, which drops to 0,1 and as a child opened kettle afterwards, takes plate, forms semi-finished product；
S6：Finished product plate：By semifinished sheet after drying machine drying, moisture content is no more than 10% in slab, warp
Cross the surface treatment procedure of edging chamfering, finished product perforated sound-absorbing ceiling.
Embodiment two：
Providing a kind of perforated sound-absorbing ceiling, including plate body 1 in embodiment two, the plate body 1 divides for upper and lower part,
The top is equipped with the first sound-absorbing slot 2, and the first sound-absorbing slot 2 is 60 degree with 1 surface angle of plate body, and the lower part is equipped with
Second sound-absorbing slot 3, the second sound-absorbing slot 3 are 60 degree with 1 surface angle of plate body, the first sound-absorbing slot 2 and second
3 two sides of sound-absorbing slot are equipped with hemispherical protuberances 4, and the diameter of the first sound-absorbing slot 2 and the second sound-absorbing slot 3 is 1mm, and described the
One sound-absorbing slot 2 communicates to form sound-absorption hole with 3 inner sidewall of the second sound-absorbing slot, and the area communicated is the first sound-absorbing slot 2 and second
The half of 3 inner sidewall area of sound-absorbing slot, the sound-absorption hole pass through plate body 1, which is made by following steps：
S1：Wood fibre extracts preparation：Waste and old kraft paper bag or waste carton are crushed, comminution, separation, after mashing
Extraction is made wood fibre slurry and uses as perforated sound-absorbing ceiling raw material；
The carbide slag of recycling is transported in settling tank, the impurity such as ferrosilicon and carbon granules are separated, obtains the electricity that partial size is less than 1mm
The carbide slag slurry is introduced ultrasonic activation sieve by rock ballast slurry, and the sieve pore of the ultrasonic activation sieve is 400 mesh,
The flyash of recycling is subjected to grinding screening process, the flyash material that partial size is less than 1mm is obtained, by screened place
The flyash of reason carries out high temperature carbon removal processing, obtains the flyash handled through carbon removal,
Magnetic will be introduced with after the flyash of carbon removal processing is sufficiently mixed through the carbide slag slurry of ultrasonic activation sieve purification
Mixed raw material is obtained behind the region that field intensity is 0.5T, the mass ratio of carbide slag and flyash in mixed raw material is 1：3；
S2：The preparation of slab slurry：Mixed raw material and other raw materials are pressed into following weight：85 parts of mixed raw material, water
3 parts of potassium methyl silicate of property, 1 part of polyester fiber, 2 parts of polyacrylamide, 5 parts of vinylon fibre, 25 parts of cement, 8 parts of china clay, iron oxide
1 part, 13 parts of wood fibre slurry；It is added water and stirred after mixing uniformly, it is stand-by that mixed slurry is made；
S3：Mixed slurry is put into blender, water is added to be stirred, the total amount of water account for by weight percentage mixed slurry and
The 80% of the total amount of water, the material accounting 20% of other mixing；
S4：Slab manufacture：Slab slurry made from step S2 is starched by stream into corresponding lower mold, then covers upper mold
Tool, natural-dehydration to stock quality percentage 76-80% are made slab after suppressing upper mold and lower mold by roller, take off
Mould；
S5：Slab is steam-cured：After demoulding, then it is placed in steam-cured in still kettle, in 11 megapascal, still kettle boosts 4 boiler pressure
Hour, 10 hours of pressure maintaining, 6 hours are depressured, then air pressure, which drops to 0,1 and as a child opened kettle afterwards, takes plate, forms semi-finished product；
S6：Finished product plate：By semifinished sheet after drying machine drying, moisture content is no more than 10% in slab, warp
Cross the surface treatment procedure of edging chamfering, finished product perforated sound-absorbing ceiling.
Embodiment three
It is provided in embodiment three in a kind of perforated sound-absorbing ceiling and provides a kind of perforated sound-absorbing ceiling, including plate body
1, the plate body 1 divides for upper and lower part, and the top is equipped with the first sound-absorbing slot 2, the first sound-absorbing slot 2 and 1 surface of plate body
Angle is 60 degree, and the lower part is equipped with the second sound-absorbing slot 3, and the second sound-absorbing slot 3 is 60 with 1 surface angle of plate body
Degree, the first sound-absorbing slot 2 and 3 two sides of the second sound-absorbing slot are equipped with hemispherical protuberances 4, the first sound-absorbing slot 2 and the
The diameter of two sound-absorbing slots 3 is 1mm, and the first sound-absorbing slot 2 is communicated to form sound-absorption hole, be communicated with 3 inner sidewall of the second sound-absorbing slot
Area is the half of 3 inner sidewall area of the first sound-absorbing slot 2 and the second sound-absorbing slot, and the sound-absorption hole passes through plate body 1, the perforation
Acoustic ceiling is made by following steps：
S1：Wood fibre extracts preparation：Waste and old kraft paper bag or waste carton are crushed, comminution, separation, after mashing
Extraction is made wood fibre slurry and uses as perforated sound-absorbing ceiling raw material；
The carbide slag of recycling is transported in settling tank, the impurity such as ferrosilicon and carbon granules are separated, obtains the electricity that partial size is less than 1mm
The carbide slag slurry is introduced ultrasonic activation sieve by rock ballast slurry, and the sieve pore of the ultrasonic activation sieve is 350 mesh,
The flyash of recycling is subjected to grinding screening process, the flyash material that partial size is less than 1mm is obtained, by screened place
The flyash of reason carries out high temperature carbon removal processing, obtains the flyash handled through carbon removal,
Magnetic will be introduced with after the flyash of carbon removal processing is sufficiently mixed through the carbide slag slurry of ultrasonic activation sieve purification
Mixed raw material is obtained behind the region that field intensity is 0.1-0.5T, the mass ratio of carbide slag and flyash in mixed raw material is 1：2.5；
S2：The preparation of slab slurry：Mixed raw material and other raw materials are pressed into following weight：78 parts of mixed raw material, water
2 parts of potassium methyl silicate of property, 1 part of polyester fiber, 2 parts of polyacrylamide, 3 parts of vinylon fibre, 18 parts of cement, 7 parts of china clay, iron oxide
1 part, 11 parts of wood fibre slurry；It is added water and stirred after mixing uniformly, it is stand-by that mixed slurry is made；
S3：Mixed slurry is put into blender, water is added to be stirred, the total amount of water account for by weight percentage mixed slurry and
The 83% of the total amount of water, the material accounting 17% of other mixing；
S4：Slab manufacture：Slab slurry made from step S2 is starched by stream into corresponding lower mold, then covers upper mold
Tool, natural-dehydration to stock quality percentage 76-80% are made slab after suppressing upper mold and lower mold by roller, take off
Mould；
S5：Slab is steam-cured：After demoulding, then it is placed in steam-cured in still kettle, in 11 megapascal, still kettle boosts 4 boiler pressure
Hour, 10 hours of pressure maintaining, 6 hours are depressured, then air pressure, which drops to 0,1 and as a child opened kettle afterwards, takes plate, forms semi-finished product；
S6：Finished product plate：By semifinished sheet after drying machine drying, moisture content is no more than 10% in slab, warp
Cross the surface treatment procedure of edging chamfering, finished product perforated sound-absorbing ceiling.
The perforated sound-absorbing ceiling product that above-described embodiment 1-3 is produced is sent to the detection of national building materials test center,
Gained examining report is as shown in following table one to table six；
By the result of following table one to table six, it can be concluded that, perforated sound-absorbing ceiling sound-absorbing effect produced by the present invention is good,
Submitted sample meets the technical requirements of density categories in JC/T412.1-2006, and submitted sample meets in JC/T412.1-2006 and resists
The technical requirements of III grade of strength grade of folding；The inspection result of radionuclide limitation meets A class decorations in GB6566-2010
The technical requirements of material；Percent thermal shrinkage, humidity deformation, there are also Determination of Asbestos to meet coherent detection requirement for burst size of methanal；It is anti-
Tidal energy power is strong, there is the ability of stronger water suction and release water；High intensity, better than plasterboard, woodwork plate intensity, mean intensity is big
9Mpa or more；Energy conservation, thermal coefficient belong to energy-conserving product less than 0.25, can be used for thermal insulation of roof, wall surface heat insulating etc.；Environmental protection, no
Containing with do not discharge toxic and harmful gas；A1 grades of fire-protection rating, reach national highest level；
Comparative example one is to embodiment three, it can be deduced that the density of embodiment three is relatively mild, and flexural strength, heat are received
Shrinkage, water absorption rate, the wet rate that rises, mass loss rate etc. will all be got well compared with embodiment one and embodiment two, wherein embodiment one, implementation
The sound insulation and noise reduction effect of example two and embodiment three is all not much different.
Table one：10 pieces of sample size 600mm*600mm；
Table two：Sample size：4 pieces of 80mm*80mm, 3 pieces of 260mm*260mm；3 pieces of 100mm*100mm
Table three：Sample size：450mm*450mm*8mm, 5 pieces
Table four：One noise reduction of embodiment detects (specifications and models：600mm*600mm*8mm, sample size 10)
Table five：Two noise reduction of embodiment detects (specifications and models：600mm*600mm*8mm, sample size 10)
Table six：Three noise reduction of embodiment detects (specifications and models：600mm*600mm*8mm, sample size 10)
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, of the invention not departing from
In the case where spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (10)
1. a kind of perforated sound-absorbing ceiling, it is characterized in that：Including plate body (1), the plate body (1) is divided into upper and lower part, described
Top is equipped with the first sound-absorbing slot (2), and the first sound-absorbing slot (2) and plate body (1) surface angle are 60 degree, and the lower part is set
There is the second sound-absorbing slot (3), the second sound-absorbing slot (3) and plate body (1) surface angle are 60 degree, the first sound-absorbing slot
(2) and second sound-absorbing slot (3) two sides are equipped with hemispherical protuberances (4), the first sound-absorbing slot (2) and the second sound-absorbing slot
(3) diameter is 1mm, and the first sound-absorbing slot (2) communicates the face to form sound-absorption hole, communicate with second sound-absorbing slot (3) inner sidewall
Product is the half of the first sound-absorbing slot (2) and second sound-absorbing slot (3) inner sidewall area, and the sound-absorption hole passes through plate body (1).
2. a kind of production technology of perforated sound-absorbing ceiling described in claim 1, it is characterised in that include the following steps：
S1：Wood fibre extracts preparation：Waste and old kraft paper bag or waste carton are crushed, comminution, separation, extracted after mashing
Wood fibre slurry is made to use as perforated sound-absorbing ceiling raw material；
The carbide slag of recycling is transported in settling tank, the impurity such as ferrosilicon and carbon granules are separated, obtains the carbide slag that partial size is less than 1mm
The carbide slag slurry is introduced ultrasonic activation sieve by slurry, and the sieve pore of the ultrasonic activation sieve is 300-400 mesh,
The flyash of recycling is subjected to grinding screening process, the flyash material that partial size is less than 1mm is obtained, by screened processing
Flyash carries out high temperature carbon removal processing, obtains the flyash handled through carbon removal,
It is strong by magnetic field is introduced after the carbide slag slurry of ultrasonic activation sieve purification is sufficiently mixed with the flyash handled through carbon removal
Mixed raw material is obtained behind the region that degree is 0.1-0.5T, the mass ratio of carbide slag and the flyash in the mixed raw material is 1：
1-3；
S2：The preparation of slab slurry：Mixed raw material and other raw materials are pressed into following weight：It is 70-85 parts of mixed raw material, aqueous
1-3 parts of potassium methyl silicate, 1 part of polyester fiber, 2 parts of polyacrylamide, 2-5 parts of vinylon fibre, 15-25 parts of cement, china clay 5-8
Part, 1 part of iron oxide, 9-13 parts of wood fibre slurry；It is added water and stirred after mixing uniformly, it is stand-by that mixed slurry is made；
S3：Mixed slurry is put into blender, water is added to be stirred, the total amount of water accounts for mixed slurry and water by weight percentage
The 80-85% of total amount；
S4：Slab manufacture：Slab slurry made from step S2 is starched by stream into corresponding lower mold, then covers upper mold, from
So slab, demoulding is made after suppressing upper mold and lower mold by roller to stock quality percentage 76-80% in dehydration；
S5：Slab is steam-cured：After demoulding, then it is placed in steam-cured in still kettle, formation semi-finished product；
S6：Finished product plate：By semifinished sheet after drying machine drying, moisture content is no more than 10% in slab, through overground
The surface treatment procedure of side chamfering, finished product perforated sound-absorbing ceiling.
3. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：The ultrasonic activation sieve
Sieve pore be 350 mesh.
4. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：It will be sieved through ultrasonic activation
The carbide slag slurry of purification introduces the region that magnetic field strength is 0.2-0.4T after being sufficiently mixed with the flyash handled through carbon removal after
Obtain mixed raw material.
5. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：In the S1 step, electricity
The mass ratio of rock ballast and flyash is 1：2.5.
6. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：It, will in the S2 step
Mixed raw material and other raw materials press following weight：78 parts of mixed raw material, 2 parts of aqueous dimethylformamide potassium silicate, polyester fiber 1
Part, 2 parts of polyacrylamide, 3 parts of vinylon fibre, 18 parts of cement, 7 parts of china clay, 1 part of iron oxide, 11 parts of wood fibre slurry.
7. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：In the S3 step, water
Total amount account for by weight percentage mixed slurry and water total amount 83%.
8. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：The step S3 is completed
Afterwards, between progress step S4 slab manufacture, plate stock slurry standing time is no more than 45min.
9. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：In the S4 step, from
It is so dehydrated to stock quality percentage 78%.
10. the production technology of perforated sound-absorbing ceiling according to claim 2, it is characterised in that：The step S5 steams oxygen
In the process, boiler pressure boosts 4 hours in 11 megapascal, still kettle, 10 hours of pressure maintaining, is depressured 6 hours, then air pressure drop
Kettle was as a child opened afterwards to 0,1 takes plate.
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Application publication date: 20181116 |