CN116535188A - Yellow phosphorus slag baking-free brick and preparation method thereof - Google Patents
Yellow phosphorus slag baking-free brick and preparation method thereof Download PDFInfo
- Publication number
- CN116535188A CN116535188A CN202310359139.4A CN202310359139A CN116535188A CN 116535188 A CN116535188 A CN 116535188A CN 202310359139 A CN202310359139 A CN 202310359139A CN 116535188 A CN116535188 A CN 116535188A
- Authority
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- China
- Prior art keywords
- yellow phosphorus
- phosphorus slag
- baking
- hydroxide
- water glass
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- 239000002893 slag Substances 0.000 title claims abstract description 125
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 title claims abstract description 123
- 239000011449 brick Substances 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title abstract description 16
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 44
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 42
- 238000000227 grinding Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 238000007605 air drying Methods 0.000 claims abstract description 5
- 238000000465 moulding Methods 0.000 claims abstract description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 18
- 229960004887 ferric hydroxide Drugs 0.000 claims description 16
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000004566 building material Substances 0.000 abstract description 3
- 238000003837 high-temperature calcination Methods 0.000 abstract description 3
- 239000004115 Sodium Silicate Substances 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 229910052911 sodium silicate Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 10
- 230000001070 adhesive effect Effects 0.000 description 10
- 239000004568 cement Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 240000004922 Vigna radiata Species 0.000 description 2
- 235000010721 Vigna radiata var radiata Nutrition 0.000 description 2
- 235000011469 Vigna radiata var sublobata Nutrition 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000014413 iron hydroxide Nutrition 0.000 description 2
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides a yellow phosphorus slag baking-free brick and a preparation method thereof, which relate to the technical field of energy conservation and environmental protection and are used for solving the problems of low utilization rate and poor environmental protection of yellow phosphorus slag in the prior art, wherein the yellow phosphorus slag baking-free brick comprises raw materials of yellow phosphorus slag, hydroxide and sodium silicate, and the mixing ratio of the yellow phosphorus slag to the hydroxide is 1:1-1:2, wherein the adding amount of the water glass solution is 5% -20%; after grinding, the yellow phosphorus slag and hydroxide are mixed to form a mixed material, and the mixing ratio is 1:1-1:2; adding water glass solution into the mixture to form a blank, wherein the adding amount of the water glass is 5% -20%; pouring the blank into a baking-free brick mold, and compacting and forming; and (5) air-drying the baking-free bricks after molding under natural conditions. The baking-free brick of the yellow phosphorus slag can fully utilize the yellow phosphorus slag, has high utilization rate and large utilization amount, can change waste into valuable, forms a novel environment-friendly building material, is energy-saving and environment-friendly, does not produce secondary pollution, and has low energy consumption and low cost without high-temperature calcination.
Description
Technical Field
The invention relates to the technical field of energy conservation and environmental protection, in particular to a baking-free brick of yellow phosphorus slag and a preparation method thereof.
Background
Yellow phosphorus slag is waste slag discharged in industry, and is waste slag produced in the process of producing phosphorus by using an electric furnace through water quenching. The main components of the composite material are silicon dioxide and calcium oxide, the proportion of which is about 90 percent, and the composite material also contains other chemical components such as calcium, magnesium, aluminum, iron and the like.
It is found that about 8-10 tons of yellow phosphorus slag are produced per 1 ton of yellow phosphorus produced on a statistical industrial basis, and that the amount of waste slag produced in the production of yellow phosphorus is large. At present, yellow phosphorus slag is not fully and effectively utilized, and contains soluble phosphide, fluoride and the like, and after leaching by rainwater, the yellow phosphorus slag can pollute the surrounding ecology and the environment, so that the yellow phosphorus slag can only be piled up in a fixed-point and concentrated manner, and the piled up yellow phosphorus slag occupies precious land resources and can also have a certain potential influence on the surrounding water environment.
At present, yellow phosphorus slag is mainly used as a cement admixture and a low-grade phosphate fertilizer, but the consumption is not large, the consumption is extremely unstable, and the yellow phosphorus slag is also used for manufacturing wall and floor tiles, sanitary ceramics and heat-insulating fibers, but the popularization rate is still insufficient, the yellow phosphorus slag cannot be digested in a large amount, the yellow phosphorus slag is not fully utilized, and the utilization value of the yellow phosphorus slag is still to be well developed.
At present, researches on manufacturing building materials by utilizing yellow phosphorus slag, such as building cement and building bricks, are carried out by adopting the yellow phosphorus slag. The Chinese patent publication No. CN106630697A discloses a method for producing cement clinker, which comprises the steps of matching yellow phosphorus slag and alkaline slag with limestone, shale and yellow sand, grinding by a raw material preparation system to prepare raw materials, wherein the preparation method improves the combustibility of the cement raw materials, reduces the energy consumption of the clinker, but the raw materials also need to be calcined by a cement rotary kiln after being preheated and decomposed in the production process, so that the yellow phosphorus slag building products can be produced, the energy consumption is high, and a large amount of CO can be discharged in the production process 2 The environmental protection is poor.
Disclosure of Invention
The invention aims to provide a yellow phosphorus slag baking-free brick and a preparation method thereof, which are used for solving the problems of low utilization rate and poor environmental friendliness of yellow phosphorus slag in the prior art.
The invention provides a baking-free brick of yellow phosphorus slag, which is prepared from the following raw materials of yellow phosphorus slag, hydroxide and water glass, wherein the mixing ratio of the yellow phosphorus slag to the hydroxide is 1:1-1:2, the adding amount of the water glass solution is 5-20%.
As a preferable scheme of the invention, the composite material is prepared from the following raw materials including yellow phosphorus slag, hydroxide and water glass, wherein the mixing ratio of the yellow phosphorus slag to the hydroxide is 1:2, the addition amount of the water glass is 15%.
As a preferred embodiment of the present invention, the hydroxide comprises iron hydroxide and aluminum hydroxide, wherein the ratio of iron hydroxide to aluminum hydroxide is 3:1.
as a preferable mode of the invention, the concentration of the water glass is 10% -20%.
The invention also provides a preparation method of the yellow phosphorus slag baking-free brick, which comprises the following steps:
a. drying yellow phosphorus slag for later use;
b. grinding the dried yellow phosphorus slag powder to-300-500 meshes;
c. after grinding, the yellow phosphorus slag and hydroxide are mixed to form a mixed material, and the mixing ratio is 1:1-1:2;
d. adding water glass solution into the mixture to form a blank, wherein the adding amount of the water glass is 5% -20%;
e. pouring the blank into a baking-free brick mold, and compacting and forming;
f. and (5) air-drying the baking-free bricks after molding under natural conditions.
In the step a, the yellow phosphorus slag is dried at 105 ℃ for standby, and the drying time is 2 h-4h.
As a preferable scheme of the invention, the yellow phosphorus slag in the step b is milled for 30-60 min by a ball mill.
As a preferable scheme of the invention, the yellow phosphorus slag dried in the step b is ground to-500 meshes, and the grinding time is 60min.
Compared with the prior art, the invention has the following positive effects:
according to the baking-free brick of the yellow phosphorus slag and the preparation method thereof, provided by the invention, the baking-free brick is prepared by adopting the yellow phosphorus slag, the hydroxide and the water glass as raw materials, so that the problems of piling up of the yellow phosphorus slag and difficult treatment are solved, the raw materials are not required to be mined, the cost is low, the solid waste resources are comprehensively utilized, the yellow phosphorus slag can be fully utilized, the utilization rate is high, the utilization amount is large, waste materials can be changed into things of value, a novel environment-friendly building material is formed, and the requirements of recycling economy and clean production are met, so that the baking-free brick has good economic value and high social benefit; the yellow phosphorus slag is solidified to solidify the soluble substances in the yellow phosphorus slag, so that the yellow phosphorus slag is prevented from being dissolved out, and the yellow phosphorus slag does not pollute the environment, and is economical and environment-friendly; the prepared baking-free brick is energy-saving and environment-friendly, does not produce secondary pollution, and has low energy consumption and low cost without high-temperature calcination. According to the invention, the mixture of the ferric hydroxide and the aluminum hydroxide is added, and as the solution of the ferric hydroxide and the aluminum hydroxide can form colloid, the viscosity of the mixed material is increased, the strength of the prepared baking-free brick is enhanced, the water glass is used as an adhesive to solidify the mixed material, the binding force is very strong, the strength of the baking-free brick is further improved, and the soluble substances contained in yellow phosphorus slag are solidified, so that the performance of the baking-free brick is more stable, and the prepared baking-free brick meets the brick industry standard. The yellow phosphorus slag baking-free brick has the advantages of easily available raw materials, simple production process, high product strength and good quality.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the production process of the baking-free brick of yellow phosphorus slag.
Detailed Description
In the description of the present invention, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "front," "rear," "head," "tail," and the like are merely for convenience in describing and simplifying the invention based on the orientation or positional relationship shown in the drawings and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
The following describes the embodiments of the present invention in further detail with reference to the drawings.
The invention provides a baking-free brick of yellow phosphorus slag, which is prepared from the following raw materials: 1-1:2, the adding amount of the water glass solution is 5-20%.
Preferably, the composite material is prepared from the following raw materials including yellow phosphorus slag, hydroxide and water glass, wherein the mixing ratio of the yellow phosphorus slag to the hydroxide is 1:2, the addition amount of the water glass is 15%.
Preferably, the hydroxide comprises ferric hydroxide and aluminium hydroxide, wherein the ratio of ferric hydroxide to aluminium hydroxide is 3:1. the hydroxide in the invention is the mixture of ferric hydroxide and aluminum hydroxide produced in the comprehensive utilization project of the mung bean rocks, the utilization of the hydroxide simultaneously solves the problem of waste treatment required to be solved in the comprehensive utilization project of the mung bean rocks, the mixture of the hydroxide can be utilized and consumed by the invention, the mixture of the hydroxide can also supplement the iron and aluminum content in the yellow phosphorus slag, the viscosity of the mixture of the baking-free bricks of the yellow phosphorus slag is increased, and the problem of insufficient viscosity of the yellow phosphorus slag is further solved. In addition, industrial grade ferric hydroxide and aluminum hydroxide can be used as the hydroxide.
Preferably, the concentration of water glass is 10% -20%. Preferably, the sodium silicate aqueous solution of the water glass has a concentration of 10%. The water glass has stronger binding force as an adhesive, and compared with the traditional cement, the brick blank does not need long-time maintenance, and has lower manufacturing cost and higher efficiency.
The baking-free brick is prepared by taking the yellow phosphorus slag as a raw material and adding ferric hydroxide, aluminum hydroxide and water glass, so that the environmental problems of stockpiling and difficult treatment of the yellow phosphorus slag are solved, and the cost is low because the raw material is not required to be mined, so that the solid waste resources are comprehensively utilized; the yellow phosphorus slag is solidified to solidify the soluble substances in the yellow phosphorus slag, so that the yellow phosphorus slag is prevented from being dissolved out, and the yellow phosphorus slag does not pollute the environment, and is economical and environment-friendly; the prepared baking-free brick is energy-saving and environment-friendly, does not produce secondary pollution, and has low energy consumption and low cost without high-temperature calcination. The mixture of the ferric hydroxide and the aluminum hydroxide can form colloid, so that the viscosity of the mixed material is increased, the strength of the prepared baking-free brick is enhanced, the water glass is used as an adhesive to solidify the mixed material, the adhesive force is very strong, the strength of the baking-free brick is further improved, and the soluble substances contained in yellow phosphorus slag are solidified, so that the performance of the baking-free brick is more stable, and the prepared baking-free brick meets the brick industry standard.
The preparation method of the baking-free brick of yellow phosphorus slag provided by the invention, as shown in figure 1, comprises the following steps:
a. drying yellow phosphorus slag for later use;
b. grinding the dried yellow phosphorus slag powder to-300-500 meshes;
c. after grinding, the yellow phosphorus slag and hydroxide are mixed to form a mixed material, and the mixing ratio is 1:1-1:2; wherein the particle size of the hydroxide is-300-500 meshes.
d. Adding water glass solution into the mixture to form a blank, wherein the adding amount of the water glass is 5% -20%; wherein the addition amount of the water glass is weight percent.
e. Pouring the blank into a baking-free brick mold, and compacting and forming; specifically, placing the baking-free brick die after containing the blanks on a compaction table for compaction operation, and obtaining compaction molding after the blanks in the baking-free brick die are stable in volume.
f. And (5) air-drying the baking-free bricks after molding under natural conditions. Specifically, the air drying operation is carried out at 25 ℃ and placed in a well ventilated environment of at least 48 h.
Preferably, in the step a, yellow phosphorus slag is dried at 105 ℃ for standby, and the drying time is 2 h-4 hours. The drying operation may be performed in an oven.
Preferably, the yellow phosphorus slag in the step b is milled by a ball mill for 30min-60min.
Preferably, the yellow phosphorus slag dried in the step b is ground to-500 meshes, and the grinding time is 60min. The smaller the particle diameter of the yellow phosphorus slag, the stronger the adhesion between the yellow phosphorus slag particles in the process of manufacturing the baking-free bricks, and the stronger the prepared baking-free bricks.
Example 1:
the preparation method of the baking-free brick of yellow phosphorus slag in the embodiment comprises the following steps: firstly, preparing materials: drying yellow phosphorus slag at 105 ℃ for standby, wherein the drying time is 2 h-4 hours; and then preparing the materials: grinding the dried yellow phosphorus slag to-200 meshes, wherein the grinding machine is a ball mill, and the grinding time is 20min; and (3) mixing: after grinding, mixing yellow phosphorus slag with a mixture of ferric hydroxide and aluminum hydroxide, wherein the mixing ratio is 1:1, a step of; adding auxiliary materials: the adhesive is water glass, wherein the concentration of the water glass is 10 percent, and the addition amount is 5 percent; and (3) forming: pouring the mixed materials into a baking-free brick die, and compacting and forming.
Test results: the strength of the baking-free brick of the yellow phosphorus slag is 3.24 MPa.
Example 2:
the preparation method of the baking-free brick of yellow phosphorus slag in the embodiment comprises the following steps: firstly, preparing materials: drying yellow phosphorus slag at 105 ℃ for standby, wherein the drying time is 2 h-4 hours; and then preparing the materials: grinding the dried yellow phosphorus slag to-500 meshes, wherein the grinding machine is a ball mill, and the grinding time is 60min; and (3) mixing: after grinding, mixing yellow phosphorus slag with a mixture of ferric hydroxide and aluminum hydroxide, wherein the mixing ratio is 1:1, a step of; adding auxiliary materials: the adhesive is water glass, wherein the concentration of the water glass is 10 percent, and the addition amount is 5 percent; and (3) forming: pouring the mixed materials into a baking-free brick die, and compacting and forming.
Test results: the strength of the baking-free brick of the yellow phosphorus slag is 7.62 MPa.
Example 3:
the preparation method of the baking-free brick of yellow phosphorus slag in the embodiment comprises the following steps: firstly, preparing materials: drying yellow phosphorus slag at 105 ℃ for standby, wherein the drying time is 2 h-4 hours; and then preparing the materials: grinding the dried yellow phosphorus slag to-500 meshes, wherein the grinding machine is a ball mill, and the grinding time is 60min; and (3) mixing: after grinding, mixing yellow phosphorus slag with a mixture of ferric hydroxide and aluminum hydroxide, wherein the mixing ratio is 1:2; adding auxiliary materials: the adhesive is water glass, wherein the concentration of the water glass is 10 percent, and the addition amount is 5 percent; and (3) forming: pouring the mixed materials into a baking-free brick die, and compacting and forming.
Test results: the strength of the baking-free brick of the yellow phosphorus slag is 8.21 MPa.
Example 4: the preparation method of the baking-free brick of yellow phosphorus slag in the embodiment comprises the following steps: firstly, preparing materials: drying yellow phosphorus slag at 105 ℃ for standby, wherein the drying time is 2 h-4 hours; preparing materials: grinding the dried yellow phosphorus slag to-500 meshes, wherein the grinding machine is a ball mill, and the grinding time is 60min; mixing: after grinding, mixing yellow phosphorus slag with a mixture of ferric hydroxide and aluminum hydroxide, wherein the mixing ratio is 1:2; adding auxiliary materials: the adhesive is water glass, wherein the concentration of the water glass is 10 percent, and the addition amount is 10 percent; and (3) forming: pouring the mixed materials into a baking-free brick die, and compacting and forming.
Test results: the strength of the baking-free brick of the yellow phosphorus slag is 10.64 MPa.
Example 5:
the preparation method of the baking-free brick of yellow phosphorus slag in the embodiment comprises the following steps: firstly, preparing materials: drying yellow phosphorus slag at 105 ℃ for standby, wherein the drying time is 2 h-4 hours; preparing materials: grinding the dried yellow phosphorus slag to-500 meshes, wherein the grinding machine is a ball mill, and the grinding time is 60min; mixing: after grinding, mixing yellow phosphorus slag with a mixture of ferric hydroxide and aluminum hydroxide, wherein the mixing ratio is 1:2; adding auxiliary materials: the adhesive is water glass, wherein the concentration of the water glass is 10 percent, and the addition amount is 15 percent; and (3) forming: pouring the mixed materials into a baking-free brick mold, and compacting and forming;
test results: the strength of the baking-free brick of the yellow phosphorus slag is 12.32 MPa.
Example 6:
the preparation method of the baking-free brick of yellow phosphorus slag in the embodiment comprises the following steps: firstly, preparing materials: drying yellow phosphorus slag at 105 ℃ for standby, wherein the drying time is 2 h-4 hours; preparing materials: grinding the dried yellow phosphorus slag to-300 meshes, wherein the grinding machine is a ball mill, and the grinding time is 20min; mixing: after grinding, mixing yellow phosphorus slag with a mixture of ferric hydroxide and aluminum hydroxide, wherein the mixing ratio is 1:1, a step of; adding auxiliary materials: the adhesive is water glass, wherein the concentration of the water glass is 10 percent, and the addition amount is 20 percent; and (3) forming: pouring the mixed materials into a baking-free brick die, and compacting and forming.
Test results: the strength of the baking-free brick of the yellow phosphorus slag is 9.54MPa.
The strength of the yellow phosphorus slag baking-free bricks prepared in the examples 2-6 meets the strength requirements (7.25-19.6 MPa) required by the brick and tile industry, and can meet the use requirements of the corresponding building industry.
The above description is only of the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can make several variations and modifications without departing from the inventive concept, and it is intended to cover the scope of the present invention.
Claims (8)
1. The baking-free brick is characterized by being prepared from the following raw materials of yellow phosphorus slag, hydroxide and water glass, wherein the mixing ratio of the yellow phosphorus slag to the hydroxide is 1:1-1:2, the adding amount of the water glass solution is 5-20%.
2. The baking-free brick of yellow phosphorus slag of claim 1, which is prepared from the following raw materials, including yellow phosphorus slag, hydroxide and water glass, wherein the mixing ratio of the yellow phosphorus slag and the hydroxide is 1:2, and the addition amount of the water glass is 15%.
3. The yellow phosphorus slag baking-free brick of claim 2 wherein the hydroxide comprises ferric hydroxide and aluminum hydroxide, wherein the ratio of ferric hydroxide to aluminum hydroxide is 3:1.
4. the yellow phosphorus slag baking-free brick according to claim 2, wherein the concentration of the water glass is 10% -20%.
5. The method for preparing the baking-free brick of yellow phosphorus slag as claimed in any one of claims 1 to 4, comprising the following steps:
a. drying yellow phosphorus slag for later use;
b. grinding the dried yellow phosphorus slag powder to-300-500 meshes;
c. after grinding, the yellow phosphorus slag and hydroxide are mixed to form a mixed material, and the mixing ratio is 1:1-1:2;
d. adding water glass solution into the mixture to form a blank, wherein the adding amount of the water glass is 5% -20%;
e. pouring the blank into a baking-free brick mold, and compacting and forming;
f. and (5) air-drying the baking-free bricks after molding under natural conditions.
6. The method for preparing baking-free bricks with yellow phosphorus slag according to claim 5, wherein in the step a, the yellow phosphorus slag is dried at 105 ℃ for standby, and the drying time is 2 h-4h.
7. The method for preparing baking-free bricks of yellow phosphorus slag according to claim 5, wherein the yellow phosphorus slag in the step b is milled for 30min-60min by a ball mill.
8. The method for preparing baking-free bricks of yellow phosphorus slag according to claim 5, wherein the dried yellow phosphorus slag in the step b is ground to-500 meshes for 60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310359139.4A CN116535188A (en) | 2023-04-06 | 2023-04-06 | Yellow phosphorus slag baking-free brick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864455A (en) * | 2014-03-14 | 2014-06-18 | 昆明理工大学 | Method for yellow phosphorus slag base aerated building blocks |
| CN108117348A (en) * | 2017-12-22 | 2018-06-05 | 中建西部建设贵州有限公司 | A kind of phosphorus slag base environment-friendly type construction material and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864455A (en) * | 2014-03-14 | 2014-06-18 | 昆明理工大学 | Method for yellow phosphorus slag base aerated building blocks |
| CN108117348A (en) * | 2017-12-22 | 2018-06-05 | 中建西部建设贵州有限公司 | A kind of phosphorus slag base environment-friendly type construction material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 林升鉴等: "磷尾矿、磷石膏和黄磷渣的地质聚合反应资源化利用研究进展", 矿产保护与利用, no. 4, pages 150 - 156 * |
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