CN109293309B - Treatment method for production waste of water-based paint and heat-insulation decorative integrated plate - Google Patents
Treatment method for production waste of water-based paint and heat-insulation decorative integrated plate Download PDFInfo
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- CN109293309B CN109293309B CN201811258775.3A CN201811258775A CN109293309B CN 109293309 B CN109293309 B CN 109293309B CN 201811258775 A CN201811258775 A CN 201811258775A CN 109293309 B CN109293309 B CN 109293309B
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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
- 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
Abstract
The invention discloses a method for treating production waste of a water-based paint and a heat-insulation decorative integrated plate, which comprises the following steps: preparing raw materials: respectively pretreating inorganic composite coating production waste and thermal insulation and decoration integrated board production waste, and then premixing to prepare premixed aggregate of the baking-free brick; pretreating wastewater of a water-based paint production workshop to prepare baking-free brick fine aggregate and brick making raw material water; pretreating the water-based paint waste; preparing baking-free bricks: stirring and mixing 10-30 parts of premixed aggregate, 9-18 parts of fine aggregate, 10-13 parts of brick making raw material water, 8-12 parts of aqueous coating waste, 30-60 parts of waste quartz sand, 15-40 parts of cement and 0.05-0.15 part of auxiliary agent to obtain a brick making mixture, and putting the brick making mixture into brick making equipment to prepare the baking-free brick. The whole treatment process of the invention has no secondary pollution and energy consumption, namely, the closed-loop environmental-protection production requirement of zero discharge of solid waste and wastewater in the production of the whole production workshop is met, and economic benefit is generated.
Description
Technical Field
The invention relates to the field of building materials and environmental protection, in particular to a method for treating production waste of a water-based paint and a heat-insulation decorative integrated plate.
Background
In recent years, the domestic construction industry is rapidly developed, the production of architectural coating enterprises is expanded, and a large amount of production waste of the water-based coating and the heat-insulating decorative integrated plate is generated. The waste produced by water paint production is composed of colorful paint, sand wall paint, inorganic composite paint and the like which are recycled by spraying in a workshop, returned by a house manufacturer and defective in workshop production, and solid waste produced by the waste water produced by water paint production through a centrifugal machine. In addition, the waste quartz sand is composed of unqualified products of color sand and snowflake white, is one of the raw materials for producing the water-based paint, and belongs to the waste of water-based paint production. The production waste of the heat-insulation and decoration integrated plate consists of defective materials generated in the processes of production, transportation, installation and the like of the heat-insulation and decoration integrated plate. With the enhancement of environmental protection punishment of government, architectural coating enterprises need a benign method for treating the architectural wastes urgently.
The production waste of the water-based paint and the heat-insulating decorative integrated plate can be used as a raw material for manufacturing the baking-free brick through simple pretreatment such as deodorization, crushing and the like, compared with the traditional baking brick, the baking-free brick saves a large amount of energy consumption in the production process, the performance of the baking-free brick meets the requirements of constructional engineering, and the baking-free brick has the characteristics of simple preparation process, short production period and the like, so the baking-free brick is a better choice. Although the former also mentions the patent of using building garbage and organic resin to make baking-free bricks, the patent has the following disadvantages: firstly, solid materials are simply mixed and prepared, and the bonding strength is not enough; secondly, the water absorption capacity of the construction waste is obviously larger than that of the sandstone aggregate, and the prepared baking-free brick has overlarge water absorption and poor freezing resistance.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method for treating production waste of an aqueous coating and a heat insulating and decorative integrated plate.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the treatment method of the production waste of the water-based paint and the heat-insulation decorative integrated plate is characterized by comprising the following steps of:
s1, preparing raw materials: respectively pretreating inorganic composite coating production waste and thermal insulation and decoration integrated board production waste, and then premixing to prepare premixed aggregate of the baking-free brick; pretreating wastewater of a water-based paint production workshop to prepare baking-free brick fine aggregate and brick making raw material water; pretreating the water-based paint waste;
s2, preparing baking-free bricks: stirring and mixing 10-30 parts of premixed aggregate, 9-18 parts of fine aggregate, 10-13 parts of brick making raw material water, 8-12 parts of aqueous coating waste, 30-60 parts of waste quartz sand, 15-40 parts of cement and 0.05-0.15 part of auxiliary agent to obtain a brick making mixture, and putting the brick making mixture into brick making equipment to prepare the baking-free brick.
Further, the pretreatment method of the inorganic composite coating production waste in the step S1 is as follows: adding inorganic composite coating waste into a stirring cylinder, and adding 0.02-0.1 part of deodorant and 0.05-0.2 part of preservative under the stirring condition of 42-63r/min, wherein the deodorant is preferably dibromocyanopropionamide, and the preservative is preferably isothiazolinone.
Wherein the inorganic composite coating waste comprises the following components in percentage by weight: 5-25 parts of organic fluorine-silicon emulsion, 0-50 parts of pigment and filler, 10-30 parts of water, 20-60 parts of Na2SiO3 or K2SiO3, wherein the auxiliary agent is a lignosulfonate water reducing agent, and the cement is ordinary portland cement.
Further, the pretreatment method of the heat insulation and decoration integrated board production waste in the step S1 is as follows: and crushing the production waste of the heat-insulation and decoration integrated plate to 0-10mm by using a crusher.
Wherein, the production waste of the heat-preservation and decoration integrated board is one or two of a calcium silicate board and a rock wool strip.
Further, the method for mixing the inorganic composite coating production waste and the heat-insulating and decorative integrated board production waste in the step S1 is as follows: the inorganic composite coating is added in a spraying mode of 5-10L/min under the condition that the production waste of the heat-preservation and decoration integrated board is stirred and mixed at 19-40 r/min.
Further, the preparation method of the fine aggregate and the raw material water for brick making in the step S1 comprises the following steps: carrying out centrifugal separation on the wastewater in the water-based paint production workshop, naturally exposing the centrifuged solid waste to the sun, and crushing the solid waste to 0.1-0.5mm to obtain fine aggregate; and (4) sterilizing the centrifuged wastewater to obtain the raw material water for making bricks.
Further, the method for pretreating the aqueous coating waste in the step S1 is as follows: adding 0.02-0.1 part of deodorizer and 0.05-0.2 part of preservative under the stirring condition of 42-63 r/min.
Wherein the water-based paint waste is one or more of colorful paint waste, sand wall paint waste and inorganic composite paint waste.
The colorful paint waste comprises the following components in percentage by weight: 10-60 parts of acrylic emulsion, 0-30 parts of pigment and filler and 10-40 parts of water; the sand wall coating waste comprises the following components in percentage by weight: 5-25 parts of acrylic emulsion, 30-80 parts of pigment and filler and 5-15 parts of water.
The invention has the following beneficial effects: 1. the production waste of the heat-insulating and decorating integrated plate is coated by the inorganic composite coating waste, so that the binding force between the production waste of the heat-insulating and decorating integrated plate and a cement adhesive can be enhanced, the mechanical strength of the baking-free brick is improved, the water absorption of the production waste of the heat-insulating and decorating integrated plate can be reduced to a certain extent, and the damage of the baking-free brick caused by water absorption, icing and expansion is reduced under the low-temperature condition; 2. the baking-free brick uses water-based paint waste, and the waste contains a certain amount of organic resin components, so that the mechanical strength of the baking-free brick is enhanced; 3. the water for preparing the baking-free bricks is centrifugal purified water of enterprise wastewater, not only provides raw material water for the baking-free bricks, but also provides an effective way for the treatment and discharge of the enterprise wastewater, and has good environmental protection benefits; 4. the baking-free brick prepared from the water-based paint and the heat-insulating and decorating integrated plate production waste reduces the waste treatment cost of building paint enterprises on one hand, and on the other hand, the water-based paint and the heat-insulating and decorating integrated plate production waste belongs to building materials and does not contain harmful substances, so that the problems of rainwater impregnation, toxic substance seepage, public health hazard and the like of the baking-free brick can be solved.
Detailed Description
The compression strength, frost resistance D25 and water absorption of the baking-free brick are tested according to the GB/T4111-2013 standard test method, and the invention is further explained by combining the specific implementation mode.
Example one
1) Crushing the calcium silicate board into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and multicolor coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and anticorrosion treatment;
2) adding the calcium silicate board fragments with the specification of 0-5mm, the calcium silicate board fragments with the specification of 5-10mm and the inorganic composite coating waste into a mixer for premixing according to the mass ratio of 1:1:0.6, wherein the inorganic composite coating waste is added in a 10L/min spraying mode under the stirring and mixing condition of 21r/min, so that the inorganic composite coating effectively coats the surface of the calcium silicate board, and the premixed aggregate is obtained;
3) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
4) the method comprises the steps of mixing 20 parts of premixed aggregate, 14 parts of fine aggregate, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brickmaking raw material water and 10 parts of multicolor coating waste, stirring and mixing to obtain a brickmaking mixture, putting the brickmaking mixture into brickmaking equipment, preparing a baking-free brick according to the specified size of 240mm, 115mm and 53mm, and naturally curing for 28 days to test the compressive strength, frost resistance and water absorption. The average compression strength of the baking-free brick is 10.2Mpa, the freezing resistance is D25, the strength loss rate is 9.3 percent, and the water absorption rate is 13.1 percent.
Example two
1) Crushing rock wool strips into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and multicolor coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and anticorrosion treatment;
2) adding the rock wool strip fragments with the specification of 0-5mm, the rock wool strip fragments with the specification of 5-10mm and the inorganic composite coating wastes into a mixer according to the mass ratio of 1:1:0.6 for premixing, wherein the inorganic composite coating wastes are added in a 10L/min spraying mode under the condition of stirring and mixing the rock wool strip fragments at 21r/min, so that the inorganic composite coating is effectively coated on the surface of the rock wool strip, and the premixed aggregate is obtained;
3) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
4) the method comprises the steps of mixing 20 parts of premixed aggregate, 14 parts of fine aggregate, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brickmaking raw material water and 10 parts of multicolor coating waste, stirring and mixing to obtain a brickmaking mixture, putting the brickmaking mixture into brickmaking equipment, preparing a baking-free brick according to the specified size of 240mm, 115mm and 53mm, and naturally curing for 28 days to test the compressive strength, frost resistance and water absorption. The average compression strength of the baking-free brick is 13.4Mpa, the freezing resistance is D25, the strength loss rate is 7.1 percent, and the water absorption rate is 10.8 percent.
EXAMPLE III
1) Crushing the calcium silicate board into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and sand wall coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and corrosion prevention;
2) adding the calcium silicate board fragments with the specification of 0-5mm, the calcium silicate board fragments with the specification of 5-10mm and the inorganic composite coating waste into a mixer for premixing according to the mass ratio of 1:1:0.6, wherein the inorganic composite coating waste is added in a 10L/min spraying mode under the stirring and mixing condition of 21r/min, so that the inorganic composite coating effectively coats the surface of the calcium silicate board, and the premixed aggregate is obtained;
3) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
4) the method comprises the steps of mixing 20 parts of premixed aggregate, 14 parts of fine aggregate, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brickmaking raw material water and 10 parts of sand wall coating waste, stirring and mixing to obtain a brickmaking mixture, putting the brickmaking mixture into brickmaking equipment, preparing a baking-free brick according to the specified size of 240mm 115mm 53mm, and naturally curing for 28 days to test the compressive strength, the frost resistance and the water absorption rate. The average compression strength of the baking-free brick is 12.1Mpa, the freezing resistance is D25, the strength loss rate is 7.0 percent, and the water absorption rate is 10.6 percent.
Example four
1) Crushing rock wool strips into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and sand wall coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and corrosion prevention;
2) adding the rock wool strip fragments with the specification of 0-5mm, the rock wool strip fragments with the specification of 5-10mm and the inorganic composite coating wastes into a mixer according to the mass ratio of 1:1:0.6 for premixing, wherein the inorganic composite coating wastes are added in a 10L/min spraying mode under the condition of stirring and mixing the rock wool strip fragments at 21r/min, so that the inorganic composite coating is effectively coated on the surface of the rock wool strip, and the premixed aggregate is obtained;
3) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
4) the method comprises the steps of mixing 20 parts of premixed aggregate, 14 parts of fine aggregate, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brickmaking raw material water and 10 parts of sand wall coating waste, stirring and mixing to obtain a brickmaking mixture, putting the brickmaking mixture into brickmaking equipment, preparing a baking-free brick according to the specified size of 240mm 115mm 53mm, and naturally curing for 28 days to test the compressive strength, the frost resistance and the water absorption rate. The average compression strength of the baking-free brick is 18.7Mpa, the freezing resistance is D25, the strength loss rate is 6.5 percent, and the water absorption rate is 9.3 percent.
EXAMPLE five
1) Crushing rock wool strips into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and sand wall coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and corrosion prevention;
2) adding the rock wool strip fragments with the specification of 0-5mm, the rock wool strip fragments with the specification of 5-10mm and the inorganic composite coating wastes into a mixer according to the mass ratio of 1:1:0.8 for premixing, wherein the inorganic composite coating wastes are added in a 10L/min spraying mode under the condition of stirring and mixing the rock wool strip fragments at 21r/min, so that the inorganic composite coating is effectively coated on the surface of the rock wool strip, and the premixed aggregate is obtained;
3) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
4) the method comprises the steps of mixing 20 parts of premixed aggregate, 14 parts of fine aggregate, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brickmaking raw material water and 10 parts of sand wall coating waste, stirring and mixing to obtain a brickmaking mixture, putting the brickmaking mixture into brickmaking equipment, preparing a baking-free brick according to the specified size of 240mm 115mm 53mm, and naturally curing for 28 days to test the compressive strength, the frost resistance and the water absorption rate. The average compression strength of the baking-free brick is 15.1Mpa, the freezing resistance is D25, the strength loss rate is 5.2 percent, and the water absorption rate is 8.6 percent.
Comparative example 1
This example is a comparative test of example two, and differs from example two in that: the rock wool strips in the formula are not subjected to pre-mixing treatment of inorganic composite coating wastes, and the specific operation steps are as follows:
1) crushing rock wool strips into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and multicolor coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and anticorrosion treatment;
2) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
3) mixing 7.7 parts of rock wool strip fragments of 0.5mm, 7.7 parts of rock wool strip fragments of 5-10mm, 4.6 parts of inorganic composite coating waste, 14 parts of fine aggregate, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brick-making raw material water and 10 parts of multicolor coating waste, stirring and mixing to obtain a brick-making mixture, putting the brick-making mixture into brick-making equipment, preparing a baking-free brick according to the specified size of 240mm 115mm 53mm, and performing natural curing for 28 days to test the compressive strength, frost resistance and water absorption. The average compression strength of the baking-free brick is 9.6Mpa, the freezing resistance is D25, the strength loss rate is 11.3 percent, and the water absorption rate is 12.4 percent.
In the comparative example, the rock wool strips were not pre-mixed with the inorganic composite coating wastes, the inorganic composite coating layer failed to effectively coat the rock wool strips, the compression strength of the baking-free brick was reduced, and the strength loss rate and the water absorption rate were increased.
Comparative example 2
This example is a comparative test of example two, and differs from example two in that: inorganic composite coating waste is not added in the formula, and the specific operation steps are as follows:
1) crushing rock wool strips into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of multicolor paint waste is put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and antiseptic treatment;
2) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
3) the method comprises the following steps of mixing 10 parts of 0-5mm rock wool strips, 10 parts of 5-10mm rock wool strips, 14 parts of fine aggregates, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brick making raw material water and 10 parts of colorful coating waste, stirring and mixing to obtain a brick making mixture, putting the brick making mixture into brick making equipment, preparing a baking-free brick according to the specified size of 240mm 115mm 53mm, naturally curing for 28 days, and testing the compressive strength, the freezing resistance and the water absorption rate. The average compression strength of the baking-free brick is 6.1Mpa, the freezing resistance is D25, the strength loss rate is 15.4 percent, and the water absorption rate is 17.7 percent.
In the comparative example, inorganic composite coating waste is not added, the rock wool strips have relatively large water absorption and weak bonding force with cement, the compressive strength of the baking-free brick is greatly reduced, and the strength loss rate and the water absorption rate are sharply increased.
Comparative example three
This example is a comparative test of example two, and differs from example two in that: inorganic composite coating wastes and multicolor coating wastes are not added in the formula, and the specific operation steps are as follows:
1) crushing rock wool strips into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, crushing the dried solid waste to 0-0.5mm by using a crusher to obtain fine aggregate, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, in industrial grade, according to the proportion of 1.5 kg/m) to obtain raw material water for making bricks;
2) 20 parts of rock wool strips, 14 parts of fine aggregates, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate and 18 parts of brick-making raw material water are mixed and stirred to obtain a brick-making mixture, the brick-making mixture is put into brick-making equipment, a baking-free brick is prepared according to the specified size of 240mm, 115mm and 53mm, the brick-making mixture is naturally cured for 28 days, and the compression strength, the frost resistance and the water absorption rate are tested. The average compression strength of the baking-free brick is 5.3Mpa, the freezing resistance is D25, the strength loss rate is 17.4 percent, and the water absorption rate is 18.1 percent.
In the comparative example, inorganic composite coating waste and multicolor coating waste are not added, the rock wool strips have high water absorption rate and low bonding force with cement, the baking-free brick is lack of organic resin components, the compressive strength of the baking-free brick is greatly reduced, and the strength loss rate and the water absorption rate are sharply increased.
Comparative example four
This example is a comparative test of example three, which differs from example three in that: the method is characterized in that the fine aggregate in the formula is replaced by river sand of 40-70 meshes, and the specific operation steps are as follows:
1) crushing the calcium silicate board into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and sand wall coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and corrosion prevention;
2) adding the calcium silicate board fragments with the specification of 0-5mm, the calcium silicate board fragments with the specification of 5-10mm and the inorganic composite coating waste into a mixer for premixing according to the mass ratio of 1:1:0.6, wherein the inorganic composite coating waste is added in a 10L/min spraying mode under the stirring and mixing condition of 21r/min, so that the inorganic composite coating effectively coats the surface of the calcium silicate board, and the premixed aggregate is obtained;
3) centrifuging the waste water produced in the water-based paint workshop by using a centrifuge, and sterilizing the centrifuged waste water by using H2O2 (with the content of 30 percent, the industrial grade according to the using amount of 1.5 kg/m) to obtain the raw material water for brickmaking;
4) 20 parts of premixed aggregate, 14 parts of 40-70-mesh river sand, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of brick-making raw material water and 10 parts of sand wall coating waste are mixed and stirred to obtain a brick-making mixture, the brick-making mixture is put into brick-making equipment, a baking-free brick is prepared according to the specified size of 240mm 115mm 53mm, and the brick-making mixture is naturally cured for 28 days to carry out tests on compressive strength, frost resistance and water absorption. The average compression strength of the baking-free brick is 12.3Mpa, the freezing resistance is D25, the strength loss rate is 7.1 percent, and the water absorption rate is 10.4 percent.
In the comparative example, the fine aggregate in the formula of the third example is equivalently replaced by the river sand of 40-70 meshes, and the performance of the baking-free brick is not affected.
Comparative example five
This example is a comparative test of example three, which differs from example three in that: the method is characterized in that the brick making raw material water in the formula is replaced by tap water, and the method comprises the following specific operation steps:
1) crushing the calcium silicate board into fragments of 0-5mm and 5-10mm specifications by using a crusher, and classifying, collecting and storing; 1500kg of inorganic composite coating waste and sand wall coating waste are respectively put into a 2000L stirring cylinder, 0.3kg of dibromo-cyano-propionamide is added for deodorization under the stirring condition of 48r/min, and 1.5kg of isothiazolinone is added for sterilization and corrosion prevention;
2) adding the calcium silicate board fragments with the specification of 0-5mm, the calcium silicate board fragments with the specification of 5-10mm and the inorganic composite coating waste into a mixer for premixing according to the mass ratio of 1:1:0.6, wherein the inorganic composite coating waste is added in a 10L/min spraying mode under the stirring and mixing condition of 21r/min, so that the inorganic composite coating effectively coats the surface of the calcium silicate board, and the premixed aggregate is obtained;
3) centrifuging waste water produced in an aqueous coating workshop by using a centrifugal machine, naturally exposing the centrifuged solid waste to the sun, and crushing the solid waste to 0-0.5mm by using a crusher to obtain fine aggregate;
4) the method comprises the steps of mixing 20 parts of premixed aggregate, 14 parts of fine aggregate, 46 parts of waste quartz sand, 20 parts of 425# cement, 0.1 part of sodium lignosulfonate, 11 parts of tap water and 10 parts of sand wall coating waste, stirring and mixing to obtain a brick making mixture, putting the brick making mixture into brick making equipment, preparing a baking-free brick according to the specified size of 240mm 115mm 53mm, naturally curing for 28 days, and testing the compressive strength, the frost resistance and the water absorption rate. The average compression strength of the baking-free brick is 12.1Mpa, the freezing resistance is D25, the strength loss rate is 6.9 percent, and the water absorption rate is 10.5 percent.
In the comparative example, the same amount of brick-making raw material water in the formula of the third example is replaced by tap water, so that the performance of the baking-free brick is not affected.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The treatment method of the production waste of the water-based paint and the heat-insulation decorative integrated plate is characterized by comprising the following steps of:
s1, preparing raw materials: respectively pretreating inorganic composite coating production waste and thermal insulation and decoration integrated board production waste, and then premixing to prepare premixed aggregate of the baking-free brick; the pretreatment method of the inorganic composite coating production waste comprises the following steps: putting inorganic composite coating waste into a stirring cylinder, and adding 0.02-0.1 part of deodorant and 0.05-0.2 part of preservative under the stirring condition of 42-63r/min, wherein the inorganic composite coating waste comprises the following components in percentage by weight: 5-25 parts of organic fluorine-silicon emulsion, 0-50 parts of pigment and filler, 10-30 parts of water, 20-60 parts of Na2SiO3 or K2SiO 3; the pretreatment method of the production waste of the heat-preservation and decoration integrated plate comprises the following steps: crushing the production waste of the heat-preservation and decoration integrated plate to 0.1-10mm by using a crusher, wherein the production waste of the heat-preservation and decoration integrated plate is one or two of a calcium silicate plate and a rock wool strip;
the method comprises the following steps of pretreating wastewater of a water-based paint production workshop to prepare baking-free brick fine aggregate and brick making raw material water, wherein the pretreatment process comprises the following steps: carrying out centrifugal separation on the wastewater in the water-based paint production workshop, naturally exposing the centrifuged solid waste to the sun, and crushing the solid waste to 0.1-0.5mm to obtain fine aggregate; sterilizing the centrifuged wastewater to obtain raw material water for making bricks;
pretreating water-based paint waste, wherein the water-based paint waste is one or more of colorful paint waste, sand wall paint waste and inorganic composite paint waste, and the pretreatment process comprises the following steps: adding 0.02-0.1 part of deodorant and 0.05-0.2 part of preservative under the stirring condition of 42-63 r/min;
s2, preparing baking-free bricks: stirring and mixing 10-30 parts of premixed aggregate, 9-18 parts of fine aggregate, 10-13 parts of brick making raw material water, 8-12 parts of pretreated water-based paint waste, 30-60 parts of waste quartz sand, 15-40 parts of cement and 0.05-0.15 part of auxiliary agent to obtain a brick making mixture, and putting the brick making mixture into brick making equipment to prepare the baking-free brick.
2. The method for treating the production waste of the water-based paint and the heat-insulating decorative integrated plate as claimed in claim 1, wherein the method comprises the following steps: the auxiliary agent is a lignosulfonate water reducing agent, and the cement is ordinary portland cement.
3. The method for treating the waste from the production of the water-based paint and the heat-insulating decorative integrated plate according to claim 1, wherein the step S1 of mixing the waste from the production of the inorganic composite paint and the waste from the production of the heat-insulating decorative integrated plate comprises the following steps: the inorganic composite coating is added in a spraying mode of 5-10L/min under the condition that the production waste of the heat-preservation and decoration integrated board is stirred and mixed at 19-40 r/min.
4. The method for treating the production waste of the water-based paint and the heat-insulating decorative integrated plate as claimed in claim 1, wherein the method comprises the following steps: the components and contents of the multicolor paint waste are as follows: 10-60 parts of acrylic emulsion, 0-30 parts of pigment and filler and 10-40 parts of water; the sand wall coating waste comprises the following components in percentage by weight: 5-25 parts of acrylic emulsion, 30-80 parts of pigment and filler and 5-15 parts of water.
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