CN1931779A - Color light wall tile and its making process - Google Patents

Abstract

A colored light wall brick and a manufacturing method thereof, belonging to the field of functional wall decoration materials. At present, the wall decorative bricks have a large proportion and low bond strength with the wall, while the decorative coatings have poor weather resistance and poor thermal insulation effect, which is not conducive to energy saving of buildings. A colored lightweight wall tile, comprising the following components in parts by weight: 10-95 parts of glass raw materials, 30-65 parts of mineral raw materials and waste residues, the ratio of the two is 1-6.5:1, and an inorganic binder 2-6 parts, 0.2-10 parts of carbonate and sulfate blowing agent, 0.5-6.5 parts of inorganic pigment colorant, 5-10 parts of water. The preparation process includes drying of raw materials, grinding, mixing, compression molding into blanks and firing. The invention has rich appearance and color, good weather resistance and safety, and has good thermal insulation performance, and can be directly bonded to the wall surface through bonding materials.

Description

Color light wall brick and manufacturing method

technical field

A colored light wall brick and a manufacturing method thereof belong to the field of wall decoration materials, and in particular relate to a new type of colored light wall brick with thermal insulation function for wall decoration and a manufacturing method thereof.

Background technique

At present, ceramic tiles, mosaics, and stone decorative panels are usually used for wall decoration, because of their high specific gravity and low bonding strength with the wall, falling off has become one of the safety hazards of buildings. If paint is used to decorate the wall, although the color is bright, its weather resistance is poor, and it will fade obviously after two years. Products such as tiles, mosaics, stone decorative panels, and coatings do not have a good thermal insulation effect, which is not conducive to building energy conservation. Therefore, it is necessary to develop a functional wall facing material with integration of decoration, energy saving, safety and durability.

Contents of the invention

Aiming at the deficiencies of existing materials, the present invention provides a new type of colorful light-weight wall tile with rich appearance and color, good weather resistance, better safety and good thermal insulation performance. This kind of wall tile can be directly glued The knot material is bonded to the wall.

This kind of wall brick has a porous structure inside. It is to mix glass raw materials, mineral raw materials and waste residues in proportion, add carbonates and sulfates as foaming agents, inorganic pigments as colorants, and use inorganic binders to bond them. Compressed by a press, heated and fired to form porous colored light-weight wall tiles.

A colored lightweight wall tile of the present invention is characterized in that it comprises the following components in parts by weight: 10-95 parts of glass raw materials, 30-65 parts of mineral raw materials and waste slag in a ratio of 1-6.5:1, 2-6 parts of inorganic binder, 0.2-10 parts of carbonate and sulfate foaming agent, 0.5-6.5 parts of inorganic pigment colorant, 5-10 parts of water.

The glass raw materials are various waste glasses, including waste bottle glass, waste plate glass, waste utensil glass, and waste instrument glass.

The mineral raw material is one or more of volcanic ash, quartz, feldspar, shale, talc, spodumene, vermiculite tailings and perlite tailings.

The waste slag is one or both of furnace slag and steel slag.

The carbonate and sulfate blowing agents are one or more of calcium carbonate, magnesium carbonate, dolomite, sodium carbonate, strontium carbonate, sodium sulfate, calcium sulfate and barium sulfate.

The inorganic binder is one or both of clay and kaolin.

The inorganic pigment is any one or several kinds of high temperature resistant ceramic pigments and enamel pigments.

The role of various raw materials is: the role of glass raw materials is mainly to play the role of color light wall brick sintering connection agent, foaming agent gas wrapping material, slag, steel slag, volcanic ash, quartz, feldspar, shale, talc, spodumene , vermiculite tailings, perlite tailings and other raw materials are used as the supporting material for the sintered material of the colored light wall brick, which reduces the shrinkage and deformation of the shape during the sintering process of the colored light wall brick and enhances the structural strength. The main function of the foaming agent is to generate carbon dioxide and sulfur dioxide gas during the sintering process, so that the pore structure will be generated inside the colored light-weight wall brick, so that the inside of the colored light-weight wall brick will become loose, so that the colored light-weight wall brick will play a role. Thermal insulation effect. The role of clay and kaolin is to make the colored light wall tiles act as a low-temperature binder during the pressing and molding process. The role of inorganic pigments is to make the appearance of colored light wall brick products present various colors. The function of water is to wet various raw materials and binders, and realize the plastic molding of powder during the pressing process.

The invention provides a method for manufacturing a colored lightweight wall tile, which is characterized in that it comprises the following steps:

1) drying the above-mentioned various raw materials;

2) dry-grinding the dried raw materials to obtain a ground fine powder with a particle size of 40-400 mesh;

3) mixing the obtained ground fine powder in a mixing device, adding water during the mixing process to obtain a mixture;

4) Move the mixture into the mold, use a press of 10-10000kN to press it into a green body, and then demould;

5) Place the demoulded green body on a refractory support plate covered with a release agent, and then put it into a heating furnace for firing. The firing temperature system is: heat the product at a heating rate of 5-15°C/min to 700-1100°C, keep warm for 10-40 minutes, cool down to 540°C-580°C at a cooling rate of 10-20°C/min, then cool down to 360°C-400°C at a rate of 1-5°C/min, and then follow 3 ~10°C/min cooling to obtain finished color light wall tiles.

The fired wall brick is a sintered material with a porous structure, which has a colorful decorative effect, light weight, high strength, good fire performance, and low water absorption. The decorative surface of the product can be made into a flat surface. Shaped and three-dimensional convex-concave effect culture stone shape, the size deviation of the surrounding contour is ±3mm, the product can be used independently and cut. Colored lightweight wall tiles are characterized by low apparent density, generally 350-1050kg/m ³ , compressive and flexural strengths of 1.2-3.65Mpa, water absorption of 1-5vol%, and thermal conductivity of 0.096-0.238W between /m·k. The apparent density of ceramic tiles, mosaics, and stone is 2100-2800kg/m ³ , their compressive and flexural strengths are 1.6-6.5Mpa, their water absorption is generally 0.5-15vol%, and their thermal conductivity is 0.356-0.536W/m Between k. Colored lightweight wall brick is a pure inorganic material with excellent fireproof performance. The product thickness ranges from 6 to 24mm. The heat insulation capacity of this product is equivalent to a building wall with a thickness of 80 to 150mm; and it has excellent chemical stability. properties, good weather resistance. In addition, its expansion coefficient is 6.5～7.8×10 ^-6 /K which is very close to that of the wall material 6.0～8.4×10 ^-6 /K, which can ensure its thermal stability with the building wall and will not be affected by wind and rain Rain, freeze-thaw cycles, cracking of wall bricks and wall materials, or weathering and peeling phenomena occur, making it safe.

Detailed ways

Example 1

The formula of colored lightweight wall tiles is, in parts by weight:

Waste bottle glass 10

Slag 4

Steel slag 6

Volcanic Ash 10

Quartz 20

Feldspar 20

Shale 3

Talc 2

Calcium carbonate 2

Dolomite 2.5

Sodium sulfate 1.0

Kaolin 6

Brown inorganic pigment 3.5

water 6

Dry various raw materials, weigh them according to the specified ratio, put them into a horizontal ball mill for dry grinding, and finally reach a grinding particle size of 40 mesh. Add the dry powder to the concrete mixer for mixing. The mixing time is 10 minutes to ensure the uniformity of the mixture. The corresponding amount of water is added in 3 times during the operation of the machine by spraying. The friction press is used as the forming machine. The size of the combined steel mold is (L*B*H) 100*50*16mm. There are 12 mold cavities on one mold. Through automatic feeding, the water-containing batch material is used to fill the mold cavity. , Scrape the excess batch material above the mold along the top of the mold with a straight plate, press the batch material with 10kN pressure, and form a dense green body with a thickness of 4mm, and remove the green body through mechanical demoulding. Through mechanical transmission, the green body is sent to the heating furnace for heating. The heating furnace is a pusher kiln.

The firing process is as follows: the green body should be placed on the refractory clay brick support plate covered with a release agent. The material of the release agent is quartz powder. of adhesion.

The temperature system for firing the colored lightweight wall brick body is as follows: heat the product to 1100°C at a heating rate of 5°C/min, keep it warm for 40 minutes, cool down at a cooling rate of 10°C/min to 540°C, and then press 1°C/min Min cooling rate to 360°C, and then cooling at 3°C/min, the surface of the baked colored lightweight wall tile product has a brown color, the surrounding shape is basically flat, the thickness is uniform, and the upper and lower surfaces are flat, which is conducive to the construction of interior and exterior walls. The product contains A large number of bubbles, the thickness of the product is 6mm, the apparent density is 1050kg/m ³ , the compressive strength and flexural strength are 3.65Mpa and 2.87Mpa respectively, the water absorption is generally 1.0vol%, and the thermal conductivity is 0.238W/m·k.

Example 2

The formula of colored lightweight wall tiles is as follows, in parts by weight:

Waste bottle glass 35

Waste flat glass 30

Waste glass 30

Slag 5

Steel slag 10

Feldspar 15

Magnesium Carbonate 5

Barium Sulfate 3

Calcium Sulfate 2

Clay 2

Inorganic pigment gray 0.5

water 5

Dry various raw materials, weigh them according to the specified ratio except water, put them into a horizontal ball mill for dry grinding, and finally reach a grinding particle size of 400 mesh. Add the dry powder into a V-shape blender for mixing. The mixing time is 30 minutes, and water is added once by spraying. A hydraulic press is used as a molding machine. The steel mold product size specification is (L*B*H) 200*80*20mm. There are 4 mold cavities on a mold, which can be fed automatically or manually, and loosely mixed with water. Fill the mold cavity, scrape the excess batch material above the mold along the top of the mold with a straight plate, press the batch material with a pressure of 10000kN, and form a dense green body with a thickness of only 4mm, and release it by mechanical or manual demoulding. Remove the body. Through mechanical transmission or manual handling, the green body is sent to the heating furnace for heating. The heating furnace is any one of push plate kiln, metal mesh belt furnace, tunnel furnace and roller kiln.

The firing process is as follows:

Colored lightweight wall brick is a cutting-free product that is sintered through the green body. The green body should be placed on the silicon carbide and clay refractory support plate covered with a release agent. The release agent material can be any one or mixed with feldspar powder. , The thickness of the release agent is 5mm, which can ensure the adhesion of the green body to the supporting plate during the sintering process.

The temperature system for firing the colored lightweight wall brick body is: heat the product to 700°C at a heating rate of 15°C/min, keep it warm for 10 minutes, cool down to 580°C at a cooling rate of 20°C/min, and then press 5°C /min cooling rate to 400°C, and then cooling at 10°C/min, the product out of the oven is gray, the outline of the product is straight, the upper surface is a three-dimensional concave-convex effect, the height difference of the convex-concave is 2-5mm, the average thickness of the product is 9mm, and the lower surface It has a groove-like structure with a groove depth of 1-3mm, which is beneficial to enhance the adhesion between the product and the wall when used in wall construction. The product contains a large number of air bubbles, with an apparent density of 350kg/m ³ and a compressive and flexural strength of 1.45Mpa. , 1.20Mpa, the water absorption rate is generally 5.0vol%, and the thermal conductivity is 0.096W/m·k.

Example 3

The formula of colored lightweight wall tiles is as follows, in parts by weight:

Waste instrument glass 55

Waste flat glass 15

Steel slag 10

Perlite tailings oil 5

Feldspar 20

Spodumene 30

Magnesium Carbonate 10

Clay 2

Kaolin 4

Inorganic pigment earth yellow 5

water 6

Dry all kinds of raw materials, weigh and batch according to the specified number of parts except water, put them into a horizontal ball mill for dry grinding, and finally reach a grinding particle size of 240 mesh. Add the dry powder into the spiral mixer for mixing, the mixing time is 20 minutes, and add water 4 times by spraying. The hydraulic press is used as the molding machine. The size specification of the steel mold is (L*B*H) 160*80*18mm. There are 8 cavities on one mold, which can be automatically fed, and the cavity is filled with water and loose batch materials. When it is full, use a straight plate to scrape the excess batch material above the mold along the top of the mold, press the batch material with a pressure of 100kN, the thickness of the green body is 16mm, and remove the green body through mechanical demoulding. The green body is sent to the heating furnace for heating through mechanical transmission, and the heating furnace is a tunnel furnace. The firing process is as follows: put the green body on the cordierite refractory support plate with a release agent, the material of the release agent is talcum powder, and the thickness of the paving is 2mm. The temperature system for firing the green body is: 10°C/min Heating speed: heat the product to 800°C, keep it warm for 30 minutes, cool down at 15°C/min to 580°C, then cool down to 400°C at 4°C/min, then cool down at 5°C/min, the surface of the product out of the furnace has Earthy yellow cultural stone effect, the average thickness of the product is 24mm, the surrounding shape is basically flat, the lower surface has grooves, which is conducive to wall construction, the product contains a lot of air bubbles, the apparent density is 746kg/m ³ , the compressive and flexural strength 2.13Mpa, 1.79Mpa, the water absorption rate is generally 3.4vol%, and the thermal conductivity is between 0.136W/m·k.

Example 4

The formula of colored lightweight wall tiles is as follows, in parts by weight:

Waste flat glass 50

Waste glass 15

Steel slag 10

Feldspar 40

Vermiculite tailings 15

Magnesium Carbonate 3

Calcium carbonate 2

Kaolin 2

Clay 2

Inorganic pigment sky blue 5

Water 5.5

Dry various raw materials, weigh them according to the specified ratio except water, put them into a horizontal ball mill for dry grinding, and finally reach a grinding particle size of 200. Add the dry powder raw materials into the concrete mixer for mixing, the mixing time is 15 minutes, and add water 4 times by spraying. The hydraulic press is used as the molding machine. The steel mold product size specification is (L*B*H) 160*80*16mm. There are 10 mold cavities on one mold, which can be automatically fed, and the mold cavity can be filled with the batch material. Scrape the excess batch material above the mold along the top of the mold with a straight plate, press the batch material with 800kN pressure, the thickness of the formed green body is only 10mm, and remove the green body through mechanical demoulding. Through mechanical transmission, the green body is sent to the heating furnace for heating. The heating furnace is a roller kiln. The firing process is as follows: the green body is placed on a silicon carbide refractory support plate covered with a release agent, and the release agent material is mixed with kaolin and feldspar powder in a ratio of 3:2, and the thickness of the release agent spread is 3mm. The temperature system for firing the green body is as follows: heat the product to 780°C at a heating rate of 8°C/min, keep it warm for 25 minutes, cool down to 550°C at a cooling rate of 15°C/min, and then cool to 550°C at a cooling rate of 4°C/min. 380°C, then cool down at 6°C/min, the surface of the product out of the oven is sky blue, the thickness of the product is 15mm, the shape of the surrounding is basically flat, the thickness is uniform, the upper and lower surfaces are flat, the product contains a lot of air bubbles, and the apparent density is 903kg /m ³ , the compressive and flexural strengths are 3.12Mpa and 2.35Mpa, the water absorption is generally 1.6vol%, and the thermal conductivity is 0.206W/m·k.

Example 5

Colored lightweight wall brick formula, in parts by weight:

Waste flat glass 45

Waste utensil glass 5

Waste instrument glass 25

Volcanic Ash 10

Quartz 15

Spodumene 25

Talc 2

Sodium carbonate 0.2

Clay 5

Inorganic pigment emerald green 6.5

water 8

Dry various raw materials, weigh them according to the specified ratio except water, put them into a horizontal ball mill for dry grinding, and finally reach a grinding particle size of 120 mesh. Add the dry powder raw materials into the spiral mixer for mixing. The mixing time is 25 minutes. The corresponding parts of water are added once during the operation of the machine by spraying.

A hydraulic press is used as the molding machine. The specification of the combined steel mold is (L*B*H) 1200*60*16mm. There are 12 product cavities on one mold. The mold cavity is filled with the batch material, and the excess batch material above the mold is used Use a straight plate to scrape flat along the top of the mold, press the batch with 600kN pressure, the thickness of the green body is 8mm, and remove the green body by mechanical demoulding. Manually transport the green body into the heating furnace for heating. The heating furnace adopts a metal mesh belt furnace. The firing process is as follows: the green body should be placed on a silicon carbide refractory support plate covered with a release agent. The release agent material is talcum powder , the thickness of the release agent is 5mm, and the firing temperature system is: heat the product to 960°C at a heating rate of 15°C/min, keep it warm for 10 minutes, cool down to 570°C at a cooling rate of 20°C/min, and then press 5 ℃/min cooling rate to 370 ℃, and then cooling at 10 ℃/min, the product out of the furnace has the effect of emerald green cultural stone, the average thickness of the product is 11mm, the shape of the surrounding is basically flat, the upper surface is the effect of convex and concave cultural stone, and the lower surface is grooved , which is beneficial to the construction and use of interior and exterior walls, and increases the adhesion strength of the wall. The product contains a large number of air bubbles, the apparent density is 657kg/m ³ , the compressive and flexural strengths are 2.41Mpa and 1.98Mpa, the water absorption is generally 3.2vol%, and the thermal conductivity is The coefficient is 0.156W/m·k.

Example 6

Colored lightweight wall brick formula, in parts by weight:

Waste flat glass 55

Spodumene 45

Feldspar 18

Talc 2

Strontium carbonate 5

Clay 5

Inorganic pigment reddish brown 3.5

water 10

Dry all kinds of raw materials, weigh them according to the specified ratio except water, put them into the jet mill for dry grinding, and finally reach the grinding particle size of 320 mesh. Add the dry powder raw materials into the spiral mixer for mixing. The mixing time is 25 minutes. The corresponding parts of water are added once during the operation of the machine by spraying. Hydraulic press is used as the molding machine, and 8-cavity mold is adopted. The product size specification is (L*B*H) 100*50*16mm. Manual feeding is used to fill the mold cavity with the batching material, and the excess batching material above the mold is used with a straight plate Scrape off along the top of the mold, use 1000kN pressure to press the batch material, the thickness of the green body is 7mm, and remove the green body by manual demoulding. Manually transport the green body into the heating furnace for heating. The heating furnace adopts a metal mesh belt furnace. The firing process is as follows: the green body should be placed on a silicon carbide refractory support plate covered with a release agent. The release agent material is according to 2 : 1:3:2:1 ratio with quartz powder, feldspar powder, kaolin, shale powder, and talc powder to form a mixed release agent. The thickness of the release agent is 5mm. The firing temperature system is: according to the heating rate of 15°C/min , heat the product to 890°C, keep it warm for 10 minutes, cool down to 560°C at a cooling rate of 20°C/min, then cool down to 380°C at a rate of 5°C/min, then cool down at a rate of 10°C/min, and release the colored light wall The surface of the facing brick product has the effect of reddish-brown cultural stone, the average thickness of the product is 10mm, and the surrounding shape is basically flat. Adhesion strength of the wall. The apparent density of the product is 486kg/m ³ , the compressive and flexural strengths are 1.69Mpa and 1.15Mpa respectively, the water absorption is generally 4.2vol%, and the thermal conductivity is 0.132W/m·k.

Claims (6)

1. color light wall tile, it is characterized in that, comprise following component: 10～95 parts of frits in parts by weight, ratio is 30～65 parts in 1～6.5: 1 raw mineral materials and a waste residue, 2～6 parts of mineral binder bonds, 0.2～10 part of carbonate, vitriol whipping agent, 0.5～6.5 part of inorganic pigment coloring agent, 5～10 parts in water.

2. a kind of color light wall tile according to claim 1 is characterized in that described frit is various discarded glass, comprises waste bottles and cans glass, waste and old sheet glass, waste and old ware glass, waste and old laboratory glass wares are a kind of or several arbitrarily.

3. a kind of color light wall tile according to claim 1 is characterized in that, described raw mineral materials is a kind of or several arbitrarily in volcanic ash, quartz, feldspar, shale, talcum, triphane, vermiculite mine tailing, the perlite tailing.

4. a kind of color light wall tile according to claim 1 is characterized in that, described waste residue is that a kind of in slag, the slag or two kinds are all used.

5. a kind of color light wall tile according to claim 1, it is characterized in that described carbonate, vitriol whipping agent are a kind of or several arbitrarily in lime carbonate, magnesiumcarbonate, rhombspar, Strontium carbonate powder, yellow soda ash, sodium sulfate, calcium sulfate, the barium sulfate.

6. the manufacture method of a color light wall tile is characterized in that, may further comprise the steps:

1) with above-mentioned various raw material drying;

2) dried starting material are carried out dry grinding, obtaining granularity is that 40～400 orders grind fine powder;

The grinding fine powder that 3) will obtain is puddled in mixing equipment, adds entry in puddling process, obtains compound;

4) compound is moved in the mould, use the pressing machine of 10～10000kN to be pressed into the demoulding behind the base substrate;

5) base substrate after the demoulding is placed on the fire-resistant supporting plate that is covered with separant, putting into process furnace then fires, the firing temperature system is: by 5～15 ℃/min heat-up rate, goods are heated to 7001100 ℃, are incubated 10～40 minutes, by 10～20 ℃/min cooling rate, be cooled to 540 ℃～580 ℃, by 1～5 ℃/min cooling rate to 360 ℃～400 ℃, according to 3～10 ℃/min cooling, obtain the finished product color light wall tile then then.