A method for preparing inorganic artificial fish belly white stone material using molybdenum tailings

Abstract

The application discloses a method for preparing inorganic artificial fish belly white stone material by using molybdenum tailings, and belongs to the technical field of building materials.The method comprises the following steps: respectively preparing A material and B material, the A material is prepared by stirring white cement, metakaolin, quartz powder, quartz sand, titanium dioxide, polycarboxylic acid water reducing agent and glycerol into large-particle pellets; the B material is prepared by stirring white cement, metakaolin, molybdenum tailing powder, molybdenum tailing sand and carbon black into a slurry; the A material pellets are placed on the bottom layer, and the B material slurry is covered thereon, then the mixture is placed in a mold after low-speed mixing, and is vacuum-pressed and formed, and after constant-temperature and constant-humidity curing, the inorganic artificial stone with fish belly white texture is obtained by gradually grinding and polishing to 10000 meshes.The method uses molybdenum tailings as the main raw material, simplifies the texture forming process, improves the production efficiency, and the obtained stone material has low water absorption, good dimensional stability and weather resistance, and at the same time, a large amount of solid waste is disposed, and the artistic value and market acceptance of the tailing product are improved.

Description

Technical Field

[0001] This invention relates to the field of building materials technology, specifically to a method for preparing inorganic artificial fish belly white stone using molybdenum tailings. Background Technology

[0002] Molybdenum tailings are solid waste generated during molybdenum mining and beneficiation. With increasing molybdenum mining output, tailings disposal has become an increasingly serious problem, making its resource utilization an inevitable choice for environmental protection and sustainable development. Continuously improving the comprehensive utilization level of bulk solid waste and increasing resource utilization efficiency are of great significance for alleviating resource bottlenecks and cultivating new economic growth points.

[0003] Calacatta marble is a type of white marble that can create an atmosphere reminiscent of the mysterious dawn light in any space. This unique aesthetic effect makes it an ideal material for creating a high-end spatial atmosphere, thus Calacatta marble has always been a sought-after premium decorative material by designers and homeowners.

[0004] As inorganic artificial stone technology matures, the production of inorganic artificial stone from molybdenum tailings has become one of the most effective ways to consume large quantities of solid waste materials. However, the chemical composition and mineral composition of molybdenum tailings fluctuate greatly depending on the mining batch and beneficiation process, directly affecting the color, strength, and performance consistency of the product. To achieve stable industrial production of molybdenum tailings products, fine grading and homogenization of the tailings are required, which increases the cost of raw material production.

[0005] Inorganic artificial stone made from molybdenum tailings uses cement or geopolymer as the main cementing material. It is mixed with tailings, pressed into shape, and cured. The main products are artificial quartz bricks, curb stones, and permeable bricks. The added value of the products is low, and they have no obvious advantages compared with traditional cement products, resulting in low consumer acceptance.

[0006] Therefore, while ensuring the stability of inorganic artificial stone products made from molybdenum tailings, increasing added value and enhancing competitiveness is currently the main challenge for the artificial stone industry made from molybdenum tailings. Summary of the Invention

[0007] This invention proposes a solution to enhance the added value and competitiveness of inorganic artificial stone made from molybdenum tailings. Specifically, it involves applying molybdenum tailings to the production process of artificial fish-belly white granite. This process differs from traditional methods that use manual labor, molds, and machines to replicate the fish-belly white texture. This invention adjusts the molybdenum tailings ore to form two different material states, then uses a mixing pan to mix these two different states. The mixed material is then pressed into shape using a vacuum vibration press, and finally polished to obtain the artificial fish-belly white granite.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A method for preparing inorganic artificial cobalt white granite using molybdenum tailings includes the following steps:

[0010] (1) Weigh the two sets of artificial stone materials respectively, one set is material A; the other set is material B;

[0011] (2) Stir material A evenly to form large pellets with a particle size of 8mm-16mm;

[0012] (3) Stir material B evenly to form a slurry with a fluidity of 140mm-180mm;

[0013] (4) The large pellets from step (2) and the slurry from step (3) are evenly arranged in a low-speed mixing pan. The mixed material is placed in a mold and pressed into shape. After curing, the pressed board is polished to obtain molybdenum tailings inorganic artificial stone imitation fish belly white stone.

[0014] Further, the A material comprises the following components: by weight, 280-340 parts white cement, 20-30 parts meta-high terephthalic acid, 80-100 parts quartz powder with a particle size of 325 mesh, 280-300 parts quartz sand with a particle size of 0.2mm-0.3mm, 180-240 parts quartz sand with a particle size of 0.1mm-0.2mm, 8-11 parts polycarboxylate superplasticizer, 3-5 parts glycerol, 5-8 parts calcium formate, 1-2 parts cellulose ether, 80-110 parts tap water, and 20-50 parts titanium white powder;

[0015] Material B comprises the following components by weight: 180-240 parts white cement, 20-30 parts meta-high terephthalic acid, 100-180 parts molybdenum tailings powder with a particle size of less than 200 mesh, 430-650 parts molybdenum tailings sand with a particle size of 0.1mm-0.4mm, 15-20 parts polycarboxylate superplasticizer, 5-8 parts calcium formate, 1-2 parts cellulose ether, 100-130 parts tap water, and 2-4 parts carbon black powder.

[0016] Further, the mixing steps for material A in step (2) are as follows: tap water, polycarboxylate superplasticizer, and glycerol are weighed into a container and mixed evenly with a stirring rod to obtain a mixed liquid; then white cement, meta-high terephthalic acid, quartz powder with a particle size of 325 mesh, titanium dioxide powder, calcium formate, and cellulose ether are weighed and placed together in a planetary mixer, and the mixer speed is set to 12r / min-18r / min for low-speed premixing to ensure uniform mixing; the mixed liquid is added to the evenly mixed powder, the mixer speed is set to 35r / min-45r / min, and the mixing time is 5min-6min, until the mixing state reaches a thin slurry state; finally, quartz sand with a particle size of 0.2mm-0.3mm and quartz sand with a particle size of 0.1mm-0.2mm are added to neutralize the material state, the mixer speed is set to 35r / min-45r / min, and the mixing time is about 2min-3min.

[0017] Further, the steps for mixing material B in step (3) are as follows: Weigh tap water and polycarboxylate superplasticizer into a container and mix them evenly with a stirring rod to obtain a mixed liquid; then weigh white cement, high-purity terephthalic acid, molybdenum tailings powder with a particle size of less than 200 mesh, calcium formate, cellulose ether, and carbon black powder and place them together in a planetary mixer. Set the mixer speed to 12r / min-18r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 35r / min-45r / min, and mix for 5min-6min until the mixture reaches a thin slurry state; finally, add 0.1mm-0.4mm molybdenum tailings sand to neutralize the material state, set the mixer speed to 35r / min-45r / min, and mix for about 2min-3min to form a slurry of 140mm-180mm.

[0018] Further, in step (4), the mixed materials A and B are evenly arranged in a low-speed mixing pan with material A as the bottom and material B covering material A. Then, material A and material B are slowly mixed at a speed of 4r / min-8r / min and 50r / min-70r / min for 3min-5min to ensure that material A and material B are evenly mixed.

[0019] Furthermore, the conditions for pressing in step (4) are as follows: a vacuum press is used, with vacuum conditions of -0.1MPa and pressure of 25N / cm². Vacuum pressing is performed.

[0020] Furthermore, the curing conditions in step (4) are: a constant temperature and humidity of 23℃-27℃ and 80% for 72 hours to ensure the full hydration of the cement inside the board.

[0021] Furthermore, after the curing of the board in step (4) is completed, the surface can be polished. The board is treated with abrasives of different fineness levels, such as 50 mesh, 150 mesh, 300 mesh, 500 mesh, 800 mesh, 1000 mesh, 1500 mesh, 2000 mesh, 3000 mesh, 6000 mesh and 10000 mesh, from coarse to fine.

[0022] An inorganic artificial fish-belly white stone made from molybdenum tailings is produced using the above method.

[0023] The inorganic artificial fish-belly white granite prepared by the process described in this invention can achieve the following beneficial effects:

[0024] (1) Quartz powder (325 mesh) is used as the main filler for stone. Since the chemical composition of quartz powder is SiO2, it does not absorb water, is resistant to acid and alkali corrosion, and is resistant to ultraviolet aging. Therefore, using quartz powder as a filler for stone can reduce the water absorption rate of the stone itself and reduce the deformation and cracking caused by water loss and shrinkage. At the same time, since quartz powder itself is stable, using quartz powder as a filler for stone can improve the stability and weather resistance of the stone.

[0025] (2) Using quartz sand as aggregate for stone can improve the permeability of stone, reduce the shrinkage rate of stone, and increase the apparent hardness of stone.

[0026] (3) Using glycerol as a retarder and humectant for stone can extend the service life of stone mix and facilitate continuous stone production.

[0027] (4) Using calcium formate as an early strength agent for stone can accelerate the growth of stone strength, reduce the maintenance time of stone, and improve the production efficiency of stone.

[0028] (5) The present invention can simplify the traditional fish belly white texture, reduce production costs and improve production efficiency. At the same time, the tailings are used as the main material in the stone during the use process, which not only consumes the tailings solid waste material to a large extent, but also enhances the artistic value of tailings products and improves the acceptance of tailings products in terms of appearance. It truly solves the problem of the difficulty in promoting green building materials in the market. Attached Figure Description

[0029] Figure 1 The image shows a physical sample of the stone prepared for this example. Detailed Implementation

[0030] The present invention will be further described below with reference to the embodiments, but the scope of protection of the present invention is not limited to the following embodiments. In the embodiments, Albo 52.5 white cement, Chao brand KW-1300 high tertiary and rutile titanium white powder are used.

[0031] Example 1

[0032] A method for producing an inorganic artificial stone imitating fish belly white granite from molybdenum tailings includes the following steps:

[0033] (1) Weigh the two sets of artificial stone materials respectively, one set is material A; the other set is material B;

[0034] The A material contains the following components: based on a total formula weight of 1 kg, it includes 280 g of white cement (Albo 52.5), 25 g of high-density terre (Super Brand KW-1300), 85 g of quartz powder (325 mesh), 280 g of quartz sand (0.2 mm-0.3 mm), 203 g of quartz sand (0.1 mm-0.2 mm), 8 g of polycarboxylate superplasticizer, 3 g of glycerol, 5 g of calcium formate, 1 g of cellulose ether, 90 g of tap water, and 20 g of titanium white powder (rutile type).

[0035] The B material contains the following components: based on a total formula weight of 1 kg, it includes 185 g of white cement (Albo 52.5), 25 g of high-density terre ore (Super Brand KW-1300), 150 g of molybdenum tailings powder (below 200 mesh), 507 g of molybdenum tailings sand (0.1-0.4 mm), 15 g of polycarboxylate superplasticizer, 5 g of calcium formate, 1 g of cellulose ether, 110 g of tap water, and 2 g of carbon black powder.

[0036] (2) Stir A material evenly, weigh tap water, polycarboxylate superplasticizer, and glycerol into a container, and mix them evenly with a stirring rod to obtain a mixed liquid; then weigh white cement, meta-high terephthalic acid, quartz powder (325 mesh), titanium white powder, calcium formate, and cellulose ether and place them together in a planetary mixer, set the mixer speed to 14 r / min for low-speed premixing to ensure even mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally add quartz sand to neutralize the material state, set the mixer speed to 38 r / min and stir for about 2 minutes to form 8-16 mm granules (the mixing state of A material can be controlled according to the pattern effect of the board).

[0037] (3) Stir B material evenly, weigh tap water and polycarboxylate superplasticizer in a container, and mix evenly with a stirring rod to obtain a mixed liquid; weigh white cement, metakaolin, molybdenum tailings powder, calcium formate and cellulose ether and place them together in a planetary mixer, set the mixer speed to 14 r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally add molybdenum tailings sand, set the mixer speed to 38 r / min and stir to form a slurry with a fluidity of 140 mm-160 mm.

[0038] (4) Evenly distribute the large pellets from step (2) and the slurry from step (3) in a low-speed mixing pan, adjust the turntable stirring speed to 6 r / min, the stirring gripping speed to 60 r / min, and the stirring time to 4 min. Place the mixed material into a mold and press it into shape. Vacuum conditions: -0.1 MPa; pressure head pressure: 25 N / cm²; To ensure the stability of the board strength, the board after pressing and vibration should be kept at a temperature of 23℃-27℃. The slabs are cured for 72 hours under constant temperature and humidity conditions of 90% to ensure full hydration of the cement inside. After curing, the slabs undergo surface polishing treatment using abrasives of different fineness levels, including 50#, 150#, 300#, 500#, 800#, 1000#, 1500#, 2000#, 3000#, 6000#, and 10000#, from coarse to fine. After polishing, the slabs are made of molybdenum tailings inorganic artificial stone imitation fish belly white stone.

[0039] The molybdenum tailings inorganic artificial stone imitation fish belly white stone prepared in this embodiment, such as Figure 1 As shown, the finished product has a flexural strength of 14.7 MPa, a compressive strength of 90 MPa, a density of 2.41 g / cm³, an apparent gloss of 31 GU, and a Mohs hardness of 6.

[0040] Example 2

[0041] A method for producing an inorganic artificial stone imitating fish belly white granite from molybdenum tailings includes the following steps:

[0042] (1) Weigh the two sets of artificial stone materials respectively, one set is material A; the other set is material B;

[0043] The A material contains the following components: based on a total formula weight of 1 kg, it includes 300 g of white cement (Albo 52.5), 25 g of high-density terre (Super Brand KW-1300), 85 g of quartz powder (325 mesh), 270 g of quartz sand (0.2 mm-0.3 mm), 191 g of quartz sand (0.1 mm-0.2 mm), 10 g of polycarboxylate superplasticizer, 3 g of glycerol, 5 g of calcium formate, 1 g of cellulose ether, 90 g of tap water, and 20 g of titanium white powder (rutile type).

[0044] The B material contains the following components: based on a total formula weight of 1 kg, it includes 200 g of white cement (Albo 52.5), 25 g of high-density terre ore (Super Brand KW-1300), 135 g of molybdenum tailings powder (below 200 mesh), 507 g of molybdenum tailings sand (0.1-0.4 mm), 15 g of polycarboxylate superplasticizer, 5 g of calcium formate, 1 g of cellulose ether, 110 g of tap water, and 2 g of carbon black powder.

[0045] (2) Stir A material evenly, weigh tap water, polycarboxylate superplasticizer, and glycerol into a container, and mix them evenly with a stirring rod to obtain a mixed liquid; then weigh white cement, meta-high terephthalic acid, quartz powder (325 mesh), titanium white powder, calcium formate, and cellulose ether and place them together in a planetary mixer, set the mixer speed to 14 r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally add quartz sand to neutralize the material state, set the mixer speed to 38 r / min and stir for about 2 minutes to form 8-16 mm granules.

[0046] (3) Stir B material evenly, weigh tap water and polycarboxylate superplasticizer in a container, and mix evenly with a stirring rod to obtain a mixed liquid; weigh white cement, meta-high terephthalic acid, molybdenum tailings powder, calcium formate and cellulose ether and place them together in a planetary mixer, set the mixer speed to 14 r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally add molybdenum tailings sand, set the mixer speed to 38 r / min and stir to form a slurry with a flowability of 140 mm-160 mm.

[0047] (4) Evenly distribute the large pellets from step (2) and the slurry from step (3) in a low-speed mixing pan, with material A as the bottom and material B covering material A. Then, mix materials A and B at a turntable speed of 6 r / min and a stirring gripper speed of 60 r / min for 3 minutes to ensure that materials A and B are mixed evenly. Evenly distribute the mixed materials in the mold and use a vacuum vibratory press with vacuum conditions of -0.1 MPa and pressure head of 25 N / cm². Perform vacuum pressing. To ensure the stability of the plate strength, the vibratory press is completed. The slabs should be cured for 72 hours under constant temperature and humidity conditions of 23℃-27℃ and 90% humidity to ensure full hydration of the cement inside the slabs. After curing, the slabs can be polished by using abrasives of different fineness levels, such as 50#, 150#, 300#, 500#, 800#, 1000#, 1500#, 2000#, 3000#, 6000#, and 10000#, to perform surface treatment from coarse to fine. After polishing, the slabs are made of molybdenum tailings inorganic artificial stone imitation fish belly white stone.

[0048] The molybdenum tailings inorganic artificial stone imitation fish belly white stone prepared in this embodiment has a flexural strength of 15.5 MPa, a compressive strength of 89 MPa, a density of 2.42 g / cm³, an apparent gloss of 32 GU, and a Mohs hardness of 6.

[0049] Example 3

[0050] A method for producing an inorganic artificial stone imitating fish belly white granite from molybdenum tailings includes the following steps:

[0051] (1) Weigh the two sets of artificial stone materials respectively, one set is material A; the other set is material B;

[0052] The A-material contains the following components: based on a total formula weight of 1 kg, it includes 320 g of white cement (Albo 52.5), 25 g of high-density terre (Super Brand KW-1300), 65 g of quartz powder (325 mesh), 280 g of quartz sand (0.2 mm-0.3 mm), 203 g of quartz sand (0.1 mm-0.2 mm), 8 g of polycarboxylate superplasticizer, 3 g of glycerol, 5 g of calcium formate, 1 g of cellulose ether, 90 g of tap water, and 20 g of titanium white powder (rutile type).

[0053] The B material contains the following components: based on a total formula weight of 1 kg, it includes 220 g of white cement (Albo 52.5), 25 g of high-density terre ore (Super Brand KW-1300), 125 g of molybdenum tailings powder (below 200 mesh), 497 g of molybdenum tailings sand (0.1-0.4 mm), 18 g of polycarboxylate superplasticizer, 5 g of calcium formate, 1 g of cellulose ether, 107 g of tap water, and 2 g of carbon black powder.

[0054] (2) Stir A material evenly. The steps of adding water to A material are as follows: weigh tap water, polycarboxylate superplasticizer, and glycerol into a container, and mix them evenly with a stirring rod to obtain a mixed liquid; then weigh white cement, meta-high terephthalic acid, quartz powder (325 mesh), titanium white powder, calcium formate, and cellulose ether and place them together in a planetary mixer. Set the mixer speed to 14 r / min for low-speed premixing to ensure even mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally, add quartz sand to neutralize the material state, set the mixer speed to 38 r / min and stir for about 2 minutes to form 8-16 mm granules.

[0055] (3) Stir B material evenly, weigh tap water and polycarboxylate superplasticizer in a container, and mix evenly with a stirring rod to obtain a mixed liquid; weigh white cement, meta-high terephthalic acid, molybdenum tailings powder, calcium formate and cellulose ether and place them together in a planetary mixer, set the mixer speed to 14 r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally add molybdenum tailings sand, set the mixer speed to 38 r / min and stir to form a slurry with a flowability of 140 mm-160 mm.

[0056] (4) The large pellets from step (2) and the slurry from step (3) are evenly distributed in a low-speed mixing pan with material A as the bottom and material B covering material A. Then, the A / B materials are slowly mixed for 3 minutes at a turntable speed of 6 r / min and a stirring gripper speed of 60 r / min to ensure that the A / B materials are evenly mixed. The mixed materials are evenly distributed in the mold and vacuum pressure is performed using a vacuum vibratory press with vacuum conditions of -0.1 MPa and pressure head of 25 N / cm². To ensure the stability of the plate strength, the vibration is completed. The slabs should be cured for 72 hours under constant temperature and humidity conditions of 25±2℃ and 90% to ensure full hydration of the cement inside the slabs. After curing, the slabs can be polished by using abrasives of different fineness levels, such as 50#, 150#, 300#, 500#, 800#, 1000#, 1500#, 2000#, 3000#, 6000#, and 10000#, to perform surface treatment from coarse to fine. After polishing, the slabs are made of molybdenum tailings inorganic artificial stone imitation fish belly white stone.

[0057] The molybdenum tailings inorganic artificial stone imitation fish belly white stone prepared in this embodiment has a flexural strength of 16.0 MPa, a compressive strength of 96 MPa, a density of 2.42 g / cm³, an apparent gloss of 30 GU, and a Mohs hardness of 6.

[0058] Example 4

[0059] A method for producing an inorganic artificial stone imitating fish belly white granite from molybdenum tailings includes the following steps:

[0060] (1) Weigh the two sets of artificial stone materials respectively, one set is material A; the other set is material B;

[0061] The A-material contains the following components: based on a total formula weight of 1 kg, it includes 340 g of white cement (Albo 52.5), 25 g of high-density terre (Super Brand KW-1300), 25 g of quartz powder (325 mesh), 280 g of quartz sand (0.2 mm-0.3 mm), 203 g of quartz sand (0.1 mm-0.2 mm), 8 g of polycarboxylate superplasticizer, 3 g of glycerol, 5 g of calcium formate, 1 g of cellulose ether, 90 g of tap water, and 20 g of titanium white powder (rutile type).

[0062] The B material contains the following components: based on a total formula weight of 1 kg, it includes 240 g of white cement (Albo 52.5), 25 g of high-density terre ore (Super Brand KW-1300), 105 g of molybdenum tailings powder (below 200 mesh), 497 g of molybdenum tailings sand (0.1-0.4 mm), 18 g of polycarboxylate superplasticizer, 5 g of calcium formate, 1 g of cellulose ether, 107 g of tap water, and 2 g of carbon black powder.

[0063] (2) Stir A material evenly, weigh tap water, polycarboxylate superplasticizer, and glycerol into a container, and mix them evenly with a stirring rod to obtain a mixed liquid; then weigh white cement, meta-high terephthalic acid, quartz powder (325 mesh), titanium white powder, calcium formate, and cellulose ether and place them together in a planetary mixer, set the mixer speed to 14 r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally add quartz sand to neutralize the material state, set the mixer speed to 38 r / min and stir for about 2 minutes to form 8-16 mm granules.

[0064] (3) Stir B material evenly, weigh tap water and polycarboxylate superplasticizer in a container, and mix evenly with a stirring rod to obtain a mixed liquid; weigh white cement, meta-high terephthalic acid, molybdenum tailings powder, calcium formate and cellulose ether and place them together in a planetary mixer, set the mixer speed to 14 r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder, set the mixer speed to 38 r / min and stir for about 5 minutes until the mixture reaches a thin slurry state; finally add molybdenum tailings sand, set the mixer speed to 38 r / min and stir to form a slurry with a flowability of 140 mm-160 mm.

[0065] (4) The large pellets from step (2) and the slurry from step (3) are evenly distributed in a low-speed mixing pan with material A as the bottom and material B covering material A. Then, the A / B materials are slowly mixed for 3 minutes at a turntable speed of 6 r / min and a stirring gripper speed of 60 r / min to ensure that the A / B materials are evenly mixed. The mixed materials are evenly distributed in the mold and vacuum pressure is performed using a vacuum vibratory press with vacuum conditions of -0.1 MPa and pressure head of 25 N / cm². To ensure the stability of the plate strength, the vibration is completed. The slabs should be cured for 72 hours under constant temperature and humidity conditions of 25±2℃ and 90% to ensure full hydration of the cement inside the slabs. After curing, the slabs can be polished by using abrasives of different fineness levels, such as 50#, 150#, 300#, 500#, 800#, 1000#, 1500#, 2000#, 3000#, 6000#, and 10000#, to perform surface treatment from coarse to fine. After polishing, the slabs are made of molybdenum tailings inorganic artificial stone imitation fish belly white stone.

[0066] The molybdenum tailings inorganic artificial stone imitation fish belly white stone prepared in this embodiment has a flexural strength of 16.8 MPa, a compressive strength of 94 MPa, a density of 2.44 g / cm³, an apparent gloss of 31 GU, and a Mohs hardness of 6.

Claims

1. A method for preparing inorganic artificial fish-belly white granite using molybdenum tailings, characterized in that, Includes the following steps: (1) Weigh the two sets of artificial stone materials respectively, one set is material A; the other set is material B; (2) Stir material A evenly to form large pellets with a particle size of 8mm-16mm; (3) Stir material B evenly to form a slurry with a fluidity of 140mm-180mm; (4) The large pellets from step (2) and the slurry from step (3) are evenly arranged in a low-speed mixing pan. The mixed material is placed in a mold and pressed into shape. After curing, the pressed board is polished to obtain molybdenum tailings inorganic artificial stone imitation fish belly white stone.

2. The method for preparing inorganic artificial fish-belly white granite using molybdenum tailings according to claim 1, characterized in that, Material A comprises the following components by weight: 280-340 parts white cement, 20-30 parts meta-high terephthalic acid, 80-100 parts quartz powder with a particle size of 325 mesh, 280-300 parts quartz sand with a particle size of 0.2mm-0.3mm, 180-240 parts quartz sand with a particle size of 0.1mm-0.2mm, 8-11 parts polycarboxylate superplasticizer, 3-5 parts glycerol, 5-8 parts calcium formate, 1-2 parts cellulose ether, 80-110 parts tap water, and 20-50 parts titanium dioxide. Material B comprises the following components by weight: 180-240 parts white cement, 20-30 parts meta-high terephthalic acid, 100-180 parts molybdenum tailings powder with a particle size of less than 200 mesh, 430-650 parts molybdenum tailings sand with a particle size of 0.1mm-0.4mm, 15-20 parts polycarboxylate superplasticizer, 5-8 parts calcium formate, 1-2 parts cellulose ether, 100-130 parts tap water, and 2-4 parts carbon black powder.

3. The method for preparing inorganic artificial fish-belly white granite using molybdenum tailings according to claim 2, characterized in that, The steps for mixing material A in step (2) are as follows: Weigh tap water, polycarboxylate superplasticizer, and glycerol into a container and mix them evenly with a stirring rod to obtain a mixed liquid; weigh white cement, meta-high terephthalic acid, quartz powder with a particle size of 325 mesh, titanium white powder, calcium formate, and cellulose ether and place them together in a planetary mixer. Set the mixer speed to 12r / min-18r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder and set the mixer speed to 35r / min-45r / min for 5min-6min until the mixture reaches a thin slurry state; finally, add quartz sand with a particle size of 0.2mm-0.3mm and quartz sand with a particle size of 0.1mm-0.2mm to neutralize the material state and set the mixer speed to 35r / min-45r / min for about 2min-3min.

4. The method for preparing inorganic artificial fish-belly white granite using molybdenum tailings according to claim 2, characterized in that, The steps for mixing material B in step (3) are as follows: Weigh tap water and polycarboxylate superplasticizer into a container and mix them evenly with a stirring rod to obtain a mixed liquid; then weigh white cement, high-purity terephthalic acid, molybdenum tailings powder with a particle size of less than 200 mesh, calcium formate, cellulose ether, and carbon black powder and place them together in a planetary mixer. Set the mixer speed to 12r / min-18r / min for low-speed premixing to ensure uniform mixing; add the mixed liquid to the evenly mixed powder and set the mixer speed to 35r / min-45r / min for 5min-6min until the mixture reaches a thin slurry state; finally, add 0.1mm-0.4mm molybdenum tailings sand to neutralize the material state and set the mixer speed to 35r / min-45r / min for about 2min-3min to form a slurry of 140mm-180mm.

5. The method for preparing inorganic artificial fish-belly white granite using molybdenum tailings according to claim 1, characterized in that, Step (4) Evenly distribute the mixed A and B materials in the low-speed mixing pan with A material as the bottom and B material covering A material. Then mix A and B materials at a turntable speed of 4r / min-8r / min and a stirring gripper speed of 50r / min-70r / min for 3min-5min to ensure that A and B materials are mixed evenly.

6. The method for preparing inorganic artificial fish-belly white granite using molybdenum tailings according to claim 1, characterized in that, The conditions for pressing in step (4) are as follows: use a vacuum press with vacuum conditions of -0.1MPa and pressure of 25N / cm².

7. The method for preparing inorganic artificial fish-belly white granite using molybdenum tailings according to claim 1, characterized in that, The curing conditions in step (4) are: a constant temperature and humidity of 23℃-27℃ and 80% for 72 hours to ensure the full hydration of the cement inside the board.

8. The method for preparing inorganic artificial fish-belly white granite using molybdenum tailings according to claim 1, characterized in that, Step (4) After the board is cured, the surface can be polished. The board is treated with abrasives of different fineness levels, such as 50 mesh, 150 mesh, 300 mesh, 500 mesh, 800 mesh, 1000 mesh, 1500 mesh, 2000 mesh, 3000 mesh, 6000 mesh and 10000 mesh, from coarse to fine.

9. A molybdenum tailings inorganic artificial fish-belly white stone, characterized in that, It is made by the method described in any one of claims 1-8.

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