CN107324762B - Diatom argil plate and preparation method and application thereof - Google Patents
Diatom argil plate and preparation method and application thereof Download PDFInfo
- Publication number
- CN107324762B CN107324762B CN201710727019.XA CN201710727019A CN107324762B CN 107324762 B CN107324762 B CN 107324762B CN 201710727019 A CN201710727019 A CN 201710727019A CN 107324762 B CN107324762 B CN 107324762B
- Authority
- CN
- China
- Prior art keywords
- stage
- temperature
- drying
- calcination
- plate
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
-
- 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
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
- C04B2235/3445—Magnesium silicates, e.g. forsterite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/606—Drying
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/94—Products characterised by their shape
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Catalysts (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a diatom argil plate which comprises, by weight, 5-35 parts of diatom mineral substances, 65-95 parts of argil and 0-10 parts of tourmaline. The invention also discloses a preparation method of the diatomite plate, which comprises the steps of mixing the raw materials with water, preparing the mixture into the shape of the diatomite plate, drying and calcining the mixture to obtain the diatomite plate. Compared with the traditional clay plate product, the invention has the advantages of light weight, good humidity adjustment and heat preservation performance and air purification, is suitable for the inner wall surface of an indoor building, and makes up the defects of the traditional clay plate in the aspect of indoor decoration.
Description
Technical Field
The invention relates to the technical field of decorative pottery clay plates for building interior walls. More particularly, relates to a diatomite plate and a preparation method and application thereof.
Background
The room decoration is a demand widely existing beside people, and particularly, people can focus on decoration beauty and bring enjoyment to people while pursuing comfortable life. The interior wall surface decorative material is not only paint and wallpaper, but also wood, and the traditional material is widely applied but also has defects, for example, wallpaper and paint have poor durability, and can cause pollution to a certain degree and harm to the environment due to poor use.
At present, the traditional common clay plates are all manufactured according to the standard of an outer wall, so that the common clay plates are all used on the wall surface of the outer wall in practical application.
Therefore, it is necessary to provide a novel diatomite plate which is light in weight, good in heat preservation and moisture resistance and capable of being used as an environment-friendly interior wall decoration material.
Disclosure of Invention
One object of the present invention is to provide a diatomaceous earth plate.
The invention also aims to provide a preparation method of the diatomite plate.
The third purpose of the invention is to provide the application of the diatomite plate.
In order to achieve the first purpose, the invention adopts the following technical scheme:
a diatom argil plate comprises, by weight, 5-35 parts of diatom mineral substances, 65-95 parts of argil and 0-10 parts of tourmaline. The diatom argil plate has the advantages of good decoration effect and high air purification performance, and has the advantages of light weight, good air permeability and heat preservation performance and the like due to the addition of porous materials such as diatom minerals. The method is beneficial to the use of the inner wall, and fills the blank of the technology for manufacturing the environment-friendly clay plate by utilizing the diatom mineral substance; in addition, Tourmaline, named Tourmaline in English, is added into the diatomite plate and is installed on the indoor wall surface, so that the decorative surface of the diatomite plate is smoother, and the Tourmaline can be matched with the high porosity of diatomite to more effectively eliminate indoor peculiar smell and play a role in purifying air due to the characteristic of releasing negative ions.
Preferably, the diatom mineral is diatomite and/or diatom shale powder, and the diatomite and the diatom shale powder can be mixed in any proportion or added independently. The main mineral components of the diatom mineral adopted in the invention are opal and variants thereof, and then clay minerals, namely hydromica, kaolinite and mineral debris, wherein the mineral debris comprises quartz, feldspar, biotite, organic matters and the like; the diatom mineral used for the diatom argil plate has high porosity and large specific surface area, does not contain harmful chemical substances, has the characteristics of non-combustibility, sound insulation, water resistance, light weight, heat insulation and the like, and also has the effects of dehumidifying, deodorizing, purifying indoor air and the like, and the function of the diatom mineral is not influenced after the diatom argil plate is prepared.
Preferably, SiO in the diatomite2More preferably more than 80 wt%, more preferably more than 94 wt%, and further comprising a small amount of Al2O3、Fe2O3、CaO、MgO、K2O、Na2O、P2O5And the like. The diatomite has countless pores on the surface, can adsorb and decompose peculiar smell in the air, and has the functions of humidifying and deodorizingAnd (4) foreground.
Preferably, the argil comprises 48-51wt% of clay, 10-12 wt% of kaolin, 18-20 wt% of potash feldspar, 7-9 wt% of lithium feldspar, 2.5-3.5 wt% of spodumene, 2.5-3.5 wt% of talc, 3.2-3.3 wt% of embryo reinforcing agent, 0.2-0.3 wt% of sodium humate and 0.3-0.4 wt% of debonder according to mass percentage. The clay is clay for firing common clay plates, and the clay mainly comprises SiO2And a small amount of Al2O3、Fe2O3CaO, MgO, and the like. The argil for the diatomite argil plate has the effects of freeze thawing resistance, air permeability, sound absorption and the like, and the function of diatomite mineral substances is not influenced after the diatomite argil plate is prepared.
In order to achieve the second purpose, the invention adopts the following technical scheme:
a preparation method of the diatomite plate comprises the following steps: mixing the raw materials with water to obtain a wet blank, making the wet blank into a required argil plate shape, drying and calcining to obtain the diatom argil plate.
Preferably, the moisture content of the wet embryo is 14wt% to 16 wt%. The water adding amount in the invention can be adjusted according to actual conditions, and the water content of the obtained wet embryo can be controlled to be 14-16 wt%.
Preferably, the drying temperature is 30-110 ℃.
Preferably, the drying time is 44-48 h.
Preferably, the maximum calcination temperature is 950 to 1200 ℃, and more preferably 1120 ℃. The invention calcines the raw materials below 1200 ℃, the temperature range does not influence the unique performance of each raw material, and the synergistic effect among the raw materials can be exerted.
Preferably, the calcination time is 15-20 h.
Preferably, the drying is three-stage slow heating drying, the first stage is heating at a heating rate of 1-2 ℃/h, the temperature is raised from the normal temperature to 30 ℃, and the drying time is 22-24 h; the second stage is heating rate of 2-5 ℃/h, the temperature is raised from 30 ℃ to 50 ℃, the drying time is 11-12 h, the third stage is heating rate of 5-10 ℃/h, the temperature is raised from 50 ℃ to 110 ℃, and the drying time is 11-12 h. The three-stage drying time in the invention comprises the time required by temperature rise and the time kept after the temperature rise.
Preferably, the heating rate of the first stage heating drying is 1 ℃/h. A large number of experiments prove that when the temperature rise rate of the first stage is 1 ℃/h, the prepared diatomite plate is not easy to crack.
Preferably, the temperature rise rate of the second-stage temperature rise drying is 2 ℃/h. A large number of experiments prove that when the temperature rise rate of the second stage is 2 ℃/h, the prepared diatomite plate is not easy to crack.
Preferably, the temperature rising rate of the third-stage temperature rising drying is 5 ℃/h. A large number of experiments prove that the prepared diatomite plate is not easy to crack when the temperature rise rate of the third stage is 5 ℃/h.
Preferably, the calcination is a three-stage temperature rise calcination, the temperature rise process in the calcination stage is performed according to the normal temperature rise process of a furnace body, the first stage is to keep calcination at any temperature of 110-150 ℃ for 6-8 h, the second stage is to keep calcination at any temperature of 400-600 ℃ for 6-8 h, and the third stage is to keep calcination at any temperature of 950-1200 ℃ for 3-4 h. In the experimental process, technicians find that the first two sections of calcination process influence whether the argil plate is dry-cracked, and the third section of calcination process influences the density, the water absorption rate, the porosity, the formaldehyde purification efficiency and the like of the prepared argil plate.
The technical personnel of the invention find that the diatom argil plate is fired by the traditional argil plate firing method, and obvious cracking phenomenon often occurs, the problem of the cracking of the diatom argil plate in the dehydration process is solved by the three-stage drying and three-stage calcining method, in addition, as the pore diameter of diatom mineral substances is only in the range of 3-50 nanometers, the water precipitation speed is very slow along with the temperature rise, and if the temperature rise speed is too fast during drying, the water precipitation is difficult to separate, and the cracking problem of the argil plate occurs. In addition, the three-stage drying and three-stage calcining of the present invention is not limited to the drying apparatus and the calcining apparatus, and can be realized.
Preferably, the preparation method specifically comprises the following steps:
1) selecting materials, namely uniformly mixing the raw materials with water to prepare a wet embryo, wherein the water content of the wet embryo is 14-16 wt%;
2) forming, namely making the wet blank obtained in the step 1) into a required ceramic plate shape;
3) drying, namely, drying the argil slab blank formed in the step 2) to remove liquid water;
4) sintering, namely calcining the clay plate dried in the step 3) to obtain a diatom clay plate;
5) cutting, namely cooling the sintered diatomite plate in the step 4) and cutting the diatomite plate into required sizes;
6) and detecting whether the appearance is qualified or not, and preparing the diatomite plate product after the appearance is qualified.
Preferably, the desired shape in step 2) is a clay plate shape required for finishing materials, including but not limited to both solid and hollow plates.
Preferably, the qualified detection standard in the step 6) is that the product is not deformed and the specific gravity is 1.4-1.7g/m3In the meantime.
In order to achieve the third purpose, the invention adopts the following technical scheme:
an application of the diatomite plate in the fields of interior wall decoration and the like. The diatom argil plate is used for decorating the inner wall, is light in weight and convenient to use, can be used on the inner wall in a traditional dry hanging mode, and can be pasted on the wall surface in a ceramic tile adhesive wet pasting mode due to the light weight.
In addition, unless otherwise specified, all starting materials for use in the present invention are commercially available, and any range recited herein includes any value between the endpoints and any subrange between the endpoints and any value between the endpoints or any subrange between the endpoints.
The invention has the following beneficial effects:
(1) the diatomaceous earth plates of the present invention are light in weight and generally have a density of 1.4 to 1.7g/m3Compared with the traditional argil plate, the density is 2.0-2.5g/m3Between, the weight is reduced30-40%, and is convenient for transportation and indoor installation.
(2) The diatomite plate has high water absorption rate which can reach 40 percent at most and is far higher than the water absorption rate of 6-9 percent of the outer wall pottery clay plate, the air permeability and humidifying respiration performance of the wall can be improved due to the increased water absorption rate, the living comfort of people is improved, and the condition that wall hanging water is formed due to moisture is particularly avoided in plum rain seasons in the south.
(3) The diatomite plate has good thermal insulation performance, and the diatomite plate has high porosity, the porosity is higher than 32%, and the heat conductivity coefficient is low, so the diatomite plate has very good thermal insulation performance and is suitable for close contact of a human body.
(4) The diatom argil plate has the characteristic of porous diatom mineral substances, so that micropores invisible to naked eyes are distributed on the argil plate, and are matched with the fine particle structure of the tourmaline, so that negative ions released by the tourmaline can fully play a role, and a good air purifying function is played.
(5) The diatom mineral substance in the diatom argil plate belongs to a nontoxic and harmless material, is safe and reliable for a human body, and does not produce secondary pollution.
(6) The diatomite plate is light in weight and convenient to use, can be used on an inner wall in a traditional dry hanging mode, and can be pasted on a wall surface in a ceramic tile adhesive wet pasting mode due to the light weight.
Detailed Description
In order to more clearly illustrate the invention, the invention is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
Example 1
The diatom argil plate comprises the following components in parts by weight: 35 parts of diatom mineral, 65 parts of pottery clay and 0 part of tourmaline, wherein the pottery clay comprises, by weight, 51% of clay, 12% of kaolin, 18.3% of potash feldspar, 9% of lithium feldspar, 3.5% of spodumene, 2.5% of talc, 3.2% of embryo reinforcing agent, 0.2% of sodium humate and 0.3% of degumming agent.
The preparation method of the diatomite plate comprises the following process steps:
1) selecting materials, namely adding water into 35 parts of diatom mineral substances, 65 parts of argil materials and 0 part of tourmaline for mixing to obtain wet embryos, wherein the water content of the wet embryos is 16wt%, and the diatom mineral substances are diatom shale powder.
2) Molding, namely preparing the mixed wet blank in the step 1) into a blank with the thickness of 300mm multiplied by 600mm multiplied by 22 mm.
3) Drying and sintering, namely drying the argil plate blank formed in the step 2) in a temperature-controlled drying furnace; after drying, calcining in a temperature-controlled calcining furnace to obtain a diatom argil plate; naturally cooling the sintered diatomite plate to normal temperature;
the drying is three-stage slow heating drying, the first stage is heating from normal temperature to 30 ℃, the drying time is 22h, the heating rate is 1 ℃/h, the second stage is heating rate 2 ℃/h, heating from 30 ℃ to 50 ℃, the drying time is 11h, the third stage is heating rate 5 ℃/h, heating from 50 ℃ to 110 ℃, and the drying time is 11 h;
the calcination is three-stage temperature rise calcination, the first stage is to keep calcination at 110 ℃ for 6h, the second stage is to keep calcination at 500 ℃ for 6h, and the third stage is to keep calcination at 1200 ℃ for 3 h;
4) cutting, namely cutting the sintered diatomite plate into required sizes;
5) and detecting whether the deformation degree and the weight are qualified or not, and preparing the diatomite plate product after the deformation degree and the weight are qualified.
The diatomite plate prepared in the example has the density of 1.41g/m3, the water absorption rate of 27%, the porosity of 39% and the formaldehyde purification efficiency of 76%.
Example 2
The diatom argil plate comprises the following components in parts by weight: 5 parts of diatom mineral, 85 parts of pottery clay and 10 parts of tourmaline, wherein the pottery clay comprises 50 wt% of clay, 12 wt% of kaolin, 19.3 wt% of potash feldspar, 9 wt% of lithium feldspar, 3.5 wt% of spodumene, 2.5 wt% of talcum, 3.2 wt% of embryo reinforcing agent, 0.2 wt% of sodium humate and 0.3 wt% of degumming agent according to mass percentage.
The preparation method of the diatomite plate comprises the following process steps:
1) selecting materials, namely adding water into 5 parts of diatom mineral substances, 85 parts of ceramic soil materials and 10 parts of tourmaline for mixing to obtain a wet embryo, wherein the water content of the wet embryo is 15 wt%, and the diatom mineral substances are a mixture consisting of 50 wt% of diatomite and 50 wt% of diatomite shale powder.
2) Molding, namely preparing the mixed wet blank in the step 1) into a blank with the thickness of 300mm multiplied by 600mm multiplied by 18 mm.
3) Drying and sintering, namely drying the argil plate blank formed in the step 2) in a temperature-controlled drying furnace; after drying, calcining in a temperature-controlled calcining furnace to obtain a diatom argil plate; naturally cooling the sintered diatomite plate to normal temperature;
the drying is three-stage slow heating drying, the first stage is heating from normal temperature to 30 ℃, the drying time is 23h, the heating rate is 2 ℃/h, the second stage is heating rate 5 ℃/h, heating from 30 ℃ to 50 ℃, the drying time is 12h, the third stage is heating rate 10 ℃/h, heating from 50 ℃ to 110 ℃, and the drying time is 12 h;
the calcination is three-stage heating calcination, the first stage is to keep calcination at 120 ℃ for 7h, the second stage is to keep calcination at 400 ℃ for 7h, and the third stage is to keep calcination at 950 ℃ for 3 h;
4) cutting, namely cutting the sintered diatomite plate into required sizes;
5) and detecting whether the deformation degree and the weight are qualified or not, and preparing the diatomite plate product after the deformation degree and the weight are qualified.
The diatomite plate prepared in the example has a density of 1.69g/m3The water absorption was 13%, the porosity was 27%, and the formaldehyde-purifying efficiency was 88%.
Example 3
The diatom argil plate comprises the following components in parts by weight: 20 parts of diatom mineral, 75 parts of argil and 5 parts of tourmaline powder, wherein the argil comprises 49 wt% of clay, 12 wt% of kaolin, 19.3 wt% of potash feldspar, 10 wt% of lithium feldspar, 3.5 wt% of spodumene, 3.5 wt% of talc, 3.2 wt% of embryo reinforcing agent, 0.2 wt% of sodium humate and 0.3 wt% of debonder in percentage by mass.
The preparation method of the diatomite plate comprises the following process steps:
1) selecting materials, namely adding water into 20 parts of diatomite mineral, 75 parts of ceramic soil material and 5 parts of tourmaline powder for mixing to obtain a wet blank, wherein the water content of the wet blank is 16wt%, and the diatomite mineral is diatomite.
2) Molding, namely preparing the mixed wet blank in the step 1) into a blank with the thickness of 300mm multiplied by 1200mm multiplied by 25 mm.
3) Drying and sintering, namely drying the argil plate blank formed in the step 2) in a temperature-controlled drying furnace; after drying, calcining in a temperature-controlled calcining furnace, and naturally cooling the sintered diatomite plate to normal temperature;
the drying is three-stage slow heating drying, the first stage is heating from normal temperature to 30 ℃, the drying time is 24 hours, the heating rate is 2 ℃/h, the second stage is heating rate 4 ℃/h, heating from 30 ℃ to 50 ℃, the drying time is 12 hours, the third stage is heating rate 7 ℃/h, heating from 50 ℃ to 110 ℃, and the drying time is 12 hours;
the calcination is three-stage heating calcination, the first stage is to keep calcination at 140 ℃ for 8h, the second stage is to keep calcination at 500 ℃ for 8h, and the third stage is to keep calcination at 1100 ℃ for 3 h;
4) cutting, namely cutting the sintered diatomite plate into required sizes;
5) and detecting whether the deformation degree and the weight are qualified or not, and preparing the diatomite plate product after the deformation degree and the weight are qualified.
The diatomite plate prepared in the example has a density of 1.49g/m3The water absorption rate is 18%, the apparent porosity is 28%, and the formaldehyde purification efficiency is 84%.
Example 4
The diatom argil plate comprises the following components in parts by weight: 30 parts of diatom mineral, 68 parts of pottery clay and 2 parts of tourmaline, wherein the pottery clay comprises 49.5 wt% of clay, 12 wt% of kaolin, 18.8 wt% of potash feldspar, 10 wt% of lithium feldspar, 3.5 wt% of spodumene, 3.5 wt% of talc, 3.2 wt% of embryo reinforcing agent, 0.2 wt% of sodium humate and 0.3 wt% of degumming agent according to mass percentage.
The preparation method of the diatomite plate comprises the following process steps:
1) selecting materials, namely adding water into 30 parts of diatom mineral substances, 68 parts of ceramic soil materials and 2 parts of tourmaline for mixing to obtain a wet embryo, wherein the water content of the wet embryo is 15.5 wt%, and the diatom mineral substances are a mixture consisting of 53 wt% of kieselguhr and 47 wt% of diatom shale powder.
2) Molding, namely preparing the mixed material obtained in the step 1) into a blank with the size of 300mm multiplied by 900mm multiplied by 18 mm.
3) Drying and sintering, namely drying the argil plate blank formed in the step 2) in a temperature-controlled drying furnace; calcining in a temperature-controlled calcining furnace after drying; naturally cooling the sintered diatomite plate to normal temperature;
the drying is three-stage slow heating drying, the first stage is heating from normal temperature to 30 ℃, the drying time is 24h, and the heating rate is 1.5 ℃/h. The second stage is heating rate of 2 ℃/h, the temperature is raised from 30 ℃ to 50 ℃, the drying time is 12h, the third stage is heating rate of 6 ℃/h, the temperature is raised from 50 ℃ to 110 ℃, and the drying time is 12 h;
the calcination is three-stage temperature rise calcination, the first stage is to keep calcination for 8h at 110 ℃, the second stage is to keep calcination for 8h at 500 ℃, and the third stage is to keep calcination for 3h at 1120 ℃;
4) cutting, namely cutting the sintered diatomite plate into required sizes;
5) and detecting whether the deformation degree and the weight are qualified or not, and preparing the diatomite plate product after the deformation degree and the weight are qualified.
According to the detection, the density of the diatomite plate prepared in the embodiment is 1.43g/m3, the water absorption rate is 24%, the porosity is 36%, and the formaldehyde purification efficiency is 79%.
Example 5
The diatom argil plate comprises the following components in parts by weight: 23 parts of diatom mineral, 67 parts of pottery clay and 10 parts of tourmaline, wherein the pottery clay comprises 50 wt% of clay, 11 wt% of kaolin, 18.8 wt% of potash feldspar, 11 wt% of lithium feldspar, 2.5 wt% of spodumene, 3.0 wt% of talcum, 3.2 wt% of embryo reinforcing agent, 0.2 wt% of sodium humate and 0.3 wt% of degumming agent according to mass percentage.
The preparation method of the diatomite plate comprises the following process steps:
1) selecting materials, namely adding water into 23 parts of diatom mineral substances, 67 parts of ceramic soil materials and 10 parts of tourmaline for mixing to obtain a wet embryo, wherein the water content of the wet embryo is 16wt%, and the diatom mineral substances are a mixture consisting of 43 wt% of diatomite and 57 wt% of diatomite shale powder.
2) Molding, namely manufacturing the mixed material obtained in the step 1) into a slab with the thickness of 600mm multiplied by 1200mm multiplied by 22 mm.
3) Drying and sintering, namely drying the argil plate blank formed in the step 2) in a temperature-controlled drying furnace; calcining in a temperature-controlled calcining furnace after drying; the sintering temperature is 1050 ℃; naturally cooling the sintered diatomite plate to normal temperature;
the drying is three-stage slow heating drying, the first stage is heating from normal temperature to-30 ℃, the drying time is 24h, and the heating rate is 1 ℃/h. The second stage is heating rate of 2 ℃/h, the temperature is raised from 30 ℃ to 50 ℃, the drying time is 12h, the third stage is heating rate of 5 ℃/h, the temperature is raised from 50 ℃ to 110 ℃, and the drying time is 12 h;
the calcination is three-stage heating calcination, the first stage is to keep calcination at 130 ℃ for 8h, the second stage is to keep calcination at 500 ℃ for 8h, and the third stage is to keep calcination at 1050 ℃ for 3 h;
4) cutting, namely cutting the sintered diatomite plate into required sizes;
5) and detecting whether the deformation degree and the weight are qualified or not, and preparing the diatomite plate product after the deformation degree and the weight are qualified.
The diatomite plate prepared in the example has a density of 1.47g/m3The water absorption rate is 19%, the apparent porosity is 29.5%, and the formaldehyde purification efficiency is 90%.
Example 6
The diatom argil plate comprises the following components in parts by weight: 18 parts of diatom mineral, 79 parts of pottery clay and 3 parts of tourmaline, wherein the pottery clay comprises 50 wt% of clay, 10.5 wt% of kaolin, 19.8 wt% of potash feldspar, 10 wt% of lithium feldspar, 3.5 wt% of spodumene, 3.5 wt% of talc, 3.2 wt% of embryo reinforcing agent, 0.2 wt% of sodium humate and 0.3 wt% of degumming agent according to mass percentage.
The preparation method of the diatomite plate comprises the following process steps:
1) selecting materials, namely adding water into 18 parts of diatom mineral substance, 79 parts of pottery clay and 3 parts of tourmaline for mixing to obtain wet embryos, wherein the water content of the wet embryos is 16wt%, and the diatom mineral substance is a mixture consisting of 30 wt% of kieselguhr and 70 wt% of diatom shale powder.
2) Molding, namely preparing the mixed material obtained in the step 1) into a blank with the size of 600mm multiplied by 1200mm multiplied by 22 mm.
3) Drying and sintering, namely drying the argil plate blank formed in the step 2) in a temperature-controlled drying furnace; after drying, calcining in a temperature-controlled calcining furnace to obtain a diatom argil plate; naturally cooling the sintered diatomite plate to normal temperature;
the drying is three-stage slow heating drying, the first stage is heating from normal temperature to 30 ℃, the drying time is 24h, and the heating rate is 1 ℃/h. The second stage is heating rate of 2 deg.C/h, heating from 30 deg.C to 50 deg.C, drying for 12h, the third stage is heating rate of 5 deg.C/h, heating from 50 deg.C to 110 deg.C, and drying for 12 h.
The calcination is three-stage heating calcination, the first stage is to keep calcination at 150 ℃ for 8h, the second stage is to keep calcination at 500 ℃ for 8h, and the third stage is to keep calcination at 1050 ℃ for 3 h;
4) cutting, namely cutting the sintered diatomite plate into required sizes;
5) and detecting whether the deformation degree and the weight are qualified or not, and preparing the diatomite plate product after the deformation degree and the weight are qualified.
The diatomaceous earth plate prepared in this example was found to have a density of 1.51g/m3The water absorption was 17%, the porosity was 27%, and the formaldehyde-purifying efficiency was 81%.
Some examples and comparative examples
The effect of the sintering temperature on the product properties was determined by the same method steps as in example 6, except that the sintering temperature in the third stage was changed as shown in Table 1:
TABLE 1 Effect of different sintering temperatures on product Properties
| Comparative example 1 | Example 7 | Example 6 | Example 8 | Example 9 | Example 10 | Comparative example 2 | |
| Sintering temperature (. degree. C.) | 850 | 950 | 1050 | 1100 | 1120 | 1200 | 1400 |
| Density of | 1.55 | 1.69 | 1.51 | 1.48 | 1.43 | 1.41 | 2.67 |
| Water absorption rate | - | 13 | 17 | 18 | 24 | 27 | 0 |
| Apparent porosity | - | 27 | 27 | 28 | 36 | 39 | 0 |
| Efficiency of purifying formaldehyde | - | 88 | 81 | 84 | 79 | 76 | 0 |
And (4) conclusion: as seen from the above table, when the firing temperature is lower than the temperature range of the invention, the ceramic plate has low strength, is not sintered and is easy to break, when the firing temperature of the ceramic plate reaches over 1200 ℃, the porosity is reduced sharply, and when the firing temperature reaches 1400 ℃, the ceramic plate is already fired into the ceramic plate, and the water absorption rate, the porosity and the formaldehyde purification efficiency are zero.
Comparative example 3
The material composition of the diatomite plate is the same as that of example 1, and the preparation method is the same as that of example 1, except that:
the diatom argil plate in step 1) only comprises diatom minerals, namely:
1) selecting materials, and mixing 35 parts of diatom mineral material and 0 part of argil material.
2) Molding, namely manufacturing the mixed material obtained in the step 1) into a slab with the thickness of 300mm multiplied by 600mm multiplied by 18 mm.
Sintering, namely naturally cooling the diatomite plate calcined at the temperature of 1200 ℃ to normal temperature;
the final results obtained show that: the absence of the clay material still recovered the fired result to powder. This will lead to failure of the sintering process;
4) cutting, since step 3) fails, this step cannot be started;
5) detection, since step 3) fails, this step cannot be started;
comparative example 4
A diatomite plate is prepared from the same materials as in example 6, and the preparation method is the same as in example 6, except that: the drying in the step 3) is one-stage drying, the drying temperature is 110 ℃, and the drying time is 12 hours;
the calcination is one-stage calcination and is at 1050 ℃ for 3 h.
The diatomite plate prepared in this example was found to have cracks in appearance and to be defective. Mainly caused by no slow temperature rise during drying and calcination, and therefore, performance indexes do not need to be measured.
Comparative example 5
A clay plate, the method steps are the same as example 6, and only the following differences are provided:
the argil plate comprises the following components in parts by weight: 0 part of diatom mineral, 97 parts of pottery clay and 3 parts of tourmaline.
As a result, the fired clay plate had a normal shape. However, the water absorption is less than 10%, the density is 2.4g/m, and the density of the diatomite plate is not met.
Some examples and comparative examples
The influence of the tourmaline dosage on the product performance is determined, namely the method steps are the same as the example 6, and only the dosage of different tourmaline is changed, as shown in the table 2:
TABLE 2 influence of different tourmaline dosages on product properties
| Example 6 | Example 11 | Example 12 | Example 13 | Example 14 | Comparative example 7 | Comparative example 8 | |
| Dosage (share) of tourmaline | 3 | 10 | 2 | 5 | 9 | 0 | 30 |
| Density of | 1.51 | 1.51 | 1.51 | 1.51 | 1.51 | 1.51 | 2.6 |
| Water absorption rate | 17 | 17 | 17 | 17 | 17 | 17 | Not determined |
| Apparent porosity | 27 | 27 | 27 | 27 | 27 | 27 | Not determined |
| Efficiency of purifying formaldehyde | 81 | 90 | 79 | 84 | 88 | 76 | 97 |
And (4) conclusion: within the range of 10% of the total amount, the amount of tourmaline is in direct proportion to the efficiency of eliminating formaldehyde. Has no influence on density, water absorption and porosity. When the content of tourmaline exceeds the range of 10%, the density of the obtained diatomite plate is higher, the water absorption rate and the porosity are lower, and the formaldehyde purification efficiency is higher.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (7)
1. The diatom argil plate is characterized by comprising, by weight, 5-35 parts of diatom mineral substances, 65-95 parts of argil and 5-10 parts of tourmaline;
according to the mass percentage, the argil comprises 48-51wt% of clay, 10-12 wt% of kaolin, 18-20 wt% of potash feldspar, 7-9 wt% of lithium feldspar, 2.5-3.5 wt% of spodumene, 2.5-3.5 wt% of talc, 3.2-3.3 wt% of embryo reinforcing agent, 0.2-0.3 wt% of sodium humate and 0.3-0.4 wt% of degumming agent; the preparation method comprises the following steps:
mixing the raw materials with water to obtain a wet blank, making the wet blank into a required argil plate shape, drying and calcining to obtain a diatom argil plate;
the calcination is three-stage temperature rise calcination, the first stage is to keep calcination for 6-8 h at any temperature of 110-150 ℃, the second stage is to keep calcination for 6-8 h at any temperature of 400-600 ℃, and the third stage is to keep calcination for 3-4 h at any temperature of 950-1200 ℃;
the drying is three-stage slow heating drying, the first stage is heating at a heating rate of 1-2 ℃/h, the temperature is raised from the normal temperature to 30 ℃, and the drying time is 22-24 h; the second stage is heating rate of 2-5 ℃/h, the temperature is raised from 30 ℃ to 50 ℃, the drying time is 11-12 h, the third stage is heating rate of 5-10 ℃/h, the temperature is raised from 50 ℃ to 110 ℃, and the drying time is 11-12 h.
2. The diatomaceous earth plate of claim 1, wherein the diatomaceous mineral is diatomaceous earth and/or diatomaceous shale powder.
3. The method for preparing a diatomaceous earth plate according to any one of claims 1 to 2, comprising the steps of: mixing the raw materials with water to obtain a wet blank, making the wet blank into a required argil plate shape, drying and calcining to obtain a diatom argil plate;
the calcination is three-stage temperature rise calcination, the first stage is to keep calcination for 6-8 h at any temperature of 110-150 ℃, the second stage is to keep calcination for 6-8 h at any temperature of 400-600 ℃, and the third stage is to keep calcination for 3-4 h at any temperature of 950-1200 ℃;
the drying is three-stage slow heating drying, the first stage is heating at a heating rate of 1-2 ℃/h, the temperature is raised from the normal temperature to 30 ℃, and the drying time is 22-24 h; the second stage is heating rate of 2-5 ℃/h, the temperature is raised from 30 ℃ to 50 ℃, the drying time is 11-12 h, the third stage is heating rate of 5-10 ℃/h, the temperature is raised from 50 ℃ to 110 ℃, and the drying time is 11-12 h.
4. The method of claim 3, wherein the wet embryo has a moisture content of 14wt% to 16 wt%.
5. The preparation method according to claim 3, wherein the calcination temperature is 950 to 1200 ℃; the calcination time is 15-20 h.
6. The preparation method according to claim 3, wherein the drying temperature is 30 to 110 ℃; the drying time is 44-48 h.
7. The use of a diatomaceous earth plate according to any one of claims 1 to 2, wherein the diatomaceous earth plate is used in the field of interior wall decoration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727019.XA CN107324762B (en) | 2017-08-23 | 2017-08-23 | Diatom argil plate and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727019.XA CN107324762B (en) | 2017-08-23 | 2017-08-23 | Diatom argil plate and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107324762A CN107324762A (en) | 2017-11-07 |
| CN107324762B true CN107324762B (en) | 2021-02-19 |
Family
ID=60224587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710727019.XA Expired - Fee Related CN107324762B (en) | 2017-08-23 | 2017-08-23 | Diatom argil plate and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107324762B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963880A (en) * | 2017-11-27 | 2018-04-27 | 辽宁省轻工科学研究院 | A kind of multi-functional sintering diatom plate preparation method of large scale |
| CN109053218A (en) * | 2018-10-18 | 2018-12-21 | 江西鸿司远特种泡沫材料有限公司 | A kind of sewage treatment ceramic foam filter and preparation method thereof |
| CN111170713A (en) * | 2018-11-13 | 2020-05-19 | 牛红武 | Diatomite product for dehumidifying and deodorizing and preparation method thereof |
| CN109928707A (en) * | 2019-04-15 | 2019-06-25 | 江苏绿品生态科技有限公司 | A kind of environmental health plate for purifying air and inducing anion |
| CN110002805A (en) * | 2019-04-15 | 2019-07-12 | 江苏绿品生态科技有限公司 | A kind of inorganic composite nano particle for indoor air purification |
| CN110510988A (en) * | 2019-07-05 | 2019-11-29 | 福建省乐普陶板制造有限公司 | A kind of crack resistence ceramic plate and its constant temperature and humidity furnace drying method |
| CN110317041B (en) * | 2019-07-10 | 2022-03-01 | 福建省乐普陶板制造有限公司 | Waste ceramic waste recovery and re-sintering ceramic plate and preparation method thereof |
| CN110845218A (en) * | 2019-12-03 | 2020-02-28 | 王少红 | Argil firing container with built-in rare earth material and preparation process |
| CN112830809B (en) * | 2021-03-03 | 2022-09-23 | 德化县嘉祥陶瓷有限公司 | Red pottery plant planter capable of automatically supplying water and manufacturing method thereof |
| CN112830765B (en) * | 2021-03-03 | 2022-09-23 | 德化县嘉祥陶瓷有限公司 | Red pottery moisturizing device for brown sugar storage and manufacturing method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11207853A (en) * | 1998-01-26 | 1999-08-03 | Dainippon Printing Co Ltd | Facing material having moisture-absorbing and releasing function |
| CN105439547B (en) * | 2014-08-07 | 2019-01-18 | 沈阳利盟生态新材料有限公司 | A kind of diatomite breathing brick and its production method with lofty tone moisture and reducing harm function |
| CN105967751B (en) * | 2016-05-06 | 2018-08-31 | 福州比美特环保产品有限公司 | A kind of multifunctional silicone diatomaceous earth breathing brick and its production method |
-
2017
- 2017-08-23 CN CN201710727019.XA patent/CN107324762B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN107324762A (en) | 2017-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107324762B (en) | Diatom argil plate and preparation method and application thereof | |
| KR101546240B1 (en) | Antimicrobial porous ceramic tile and method of manufacturing the same | |
| JP4155284B2 (en) | Tile, its manufacturing method and tile raw material | |
| KR100999351B1 (en) | The Porous humidity-control Tile and method for manufacturing same | |
| CN105541293B (en) | A kind of nagative ion inner wall brick | |
| CN201011074Y (en) | Ceramic tile with heat insulation and heat preservation function | |
| CN104177107B (en) | A kind of micropore light weight alumina refractory aggregate and preparation method thereof | |
| CN102515727A (en) | Making method of diatomite for interior decoration and product | |
| CN104129978A (en) | Ceramic foam sound absorption and noise reduction plate and preparation process thereof | |
| KR101490195B1 (en) | Eco friendly architecture interior for Reducing Sick House Syndrome | |
| CN109608165A (en) | A kind of high-intensitive ancient architecture ceramics of resistance to rapid heat cycle and preparation method thereof | |
| CN109095888A (en) | A kind of water permeable ceramic tile ultrawhite green body and its manufacturing method and application | |
| KR101322096B1 (en) | Ceramic material having humidity controlling performance, preparing method thereof and ceramic tile using the same | |
| KR20140089631A (en) | Composite for humidity control porous board using water treatment sludge and manufacturing method of the humidity control porous board | |
| CN101186508A (en) | Method for preparing porous sintering functionality ceramic tile | |
| CN111851858B (en) | Building energy-saving humidifying porcelain plate and preparation method thereof | |
| CN105236932B (en) | A kind of preparation method of light-weight insulating brick | |
| CN113860735A (en) | Acid-resistant alkali-resistant digital protective glaze | |
| CN113024226A (en) | Respiratory function rock plate | |
| KR101067144B1 (en) | Glaze composition containing vermiculite and a functional tile on which the surface is treated with the glaze composition | |
| KR101232381B1 (en) | A humidity-control tile having a high adsorption and desorption, high strength and Method for manufacturing the same | |
| RU2787483C1 (en) | Ceramic mass | |
| KR20150145614A (en) | Composite using water treatment sludge and manufacturing method thereof | |
| CN115340413B (en) | Porous ceramic plate, porous composite ceramic plate and preparation method thereof | |
| KR101731139B1 (en) | Porous ceramic tile having high strength and high moisture-absorbing |
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: 20210219 Termination date: 20210823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |