Method for preparing ceramic raw material by using building residue soil and building residue stone

Abstract

The invention discloses a method for preparing a ceramic raw material by using building residue soil and building slag stone, which comprises the following steps: carrying out coarse crushing, screening, fine grinding, magnetic separation, analysis and marking on the building slag stone to obtain a first material; carrying out coarse crushing, screening, fine grinding, magnetic separation, analysis and marking on the building residue soil to obtain a second material; uniformly mixing the first material and the second material in a mass ratio of (1-3): (4-7) to obtain a pretreated material; adding a dispersing agent into the pretreated material, uniformly stirring, then adding a water reducing agent, uniformly stirring, and then carrying out ball milling, thereby obtaining the product. According to the method, the building residue soil and the building residue stone are combined into a material suitable for manufacturing a ceramic raw material according to the characteristics of the building residue soil and the building residue stone, magnetic substances such as iron and titanium in the material are removed through a magnetic separation method, then the ceramic forming range is corrected to meet the ceramic forming requirement, then the dispersing agent and the water reducing agent are added, the viscosity is adjusted to be proper, and the ceramic is obtained. And the ceramic raw material with the required performance can be obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic raw materials, and particularly relates to a method for making ceramic raw materials by using construction waste soil and construction waste stones. Background Art

[0002] As a major ceramic production country, China's ceramic industry consumes a large amount of non-renewable natural minerals such as clay, feldspar, and quartz every year, and the production process causes relatively serious environmental pollution to the air, land, etc. In addition, ceramics are fragile products. After being broken, they are often landfilled or stacked centrally. Under the action of acidic microorganisms, toxic elements are gradually dissolved out, seep into the soil, damage the water quality of groundwater, and endanger the growth of crops and human health. How to find other minerals as substitutes is an urgent problem that ceramic enterprises need to solve at present.

[0003] Construction waste refers to construction waste generated due to human or natural reasons during engineering, including waste bricks, waste cement blocks, waste ash blocks, waste soil, waste stones, and discarded materials, etc. Among construction waste, hard construction waste such as waste bricks, waste cement blocks, and waste ash blocks are often pulverized and then added to cement as sand and gravel. However, for the treatment of waste soil and waste stones, among them, construction waste soil is mainly composed of waste of raw materials such as soil, sand and gravel, bricks and stones, and concrete. Its main characteristics are large particles, and at the same time contain certain components of cement, wood materials, plastics, and other organic substances. Among them, waste soil in construction waste is divided into primary waste soil and secondary waste soil. Primary waste soil refers to the waste soil obtained from the first excavation in this construction area, and its building substances such as bricks and stones, concrete, etc., such as newly developed mountain heads, land, etc. Secondary waste soil refers to the waste soil obtained from the second or multiple excavations in this construction area, which contains building substances such as bricks and stones, concrete, and soil is the backfill material, such as the construction area of urban renewal; Construction waste stones are some smaller and looser crushed stones, crushed ores, wood and other impurities dug out at the construction site, often containing fragments of materials such as bricks, cement, and concrete, as well as other impurities, but they still contain a relatively high content of components such as silicon oxide and aluminum oxide, which are suitable for making ceramics. Therefore, if construction waste such as waste soil and waste stones are utilized to make them into materials suitable for making ceramic raw materials, after such treatment, waste building materials can be turned into treasures, and further improve their recycling value. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a method for making ceramic raw materials by using construction waste soil and construction waste stones to solve the above-mentioned traditional technical problems.

[0005] The present invention is implemented by adopting the following technical solutions:

[0006] A method for making ceramic raw materials by using construction waste soil and construction waste stones, comprising the following preparation steps:

[0007] S1: Coarsely crush the construction slag and stone using a crusher, then conduct screening to remove impurities, and then place it in a grinding mill for fine grinding, followed by magnetic separation, analysis, and grading to obtain the first material.

[0008] Among them, screening: Screening can be manual screening or screening using a vibrating screen to remove some useless materials such as wood, leaves, batteries, etc.; Magnetic separation: Use the magnetic separation method to remove the simple substances or oxides of magnetic substances such as iron and titanium in the powder mixture; Analysis: Use raw material analysis instruments such as chemical analyzers, X-ray diffractometers, and infrared spectrometers to analyze the raw material components; Grading: According to different Si / Al ratio ranges, grade the slag and stone components from No. 1 to No. 6.

[0009] S2: Coarsely crush the construction soil and stone using a crusher, then conduct screening to remove impurities, and then place it in a grinding mill for fine grinding, followed by magnetic separation, analysis, and grading to obtain the second material.

[0010] Among them, screening: Screening can be manual screening or screening using a vibrating screen to remove some useless materials such as wood, leaves, batteries, etc.; Magnetic separation: Use the magnetic separation method to remove the simple substances or oxides of magnetic substances such as iron and titanium in the powder mixture; Analysis: Use raw material analysis instruments such as chemical analyzers, X-ray diffractometers, and infrared spectrometers to analyze the raw material components; Grading: According to different Si / Al ratio ranges, grade the soil and stone components from No. 1 to No. 6.

[0011] S3: Uniformly mix the first material and the second material with a mass ratio of (1 - 3):(4 - 7). If the components of the material meet the porcelain-forming range, mark the components of the material. If the components of the material do not meet the porcelain-forming range, return to step S3 or add the corresponding missing component raw materials to correct the porcelain-forming of the material, and then mark the components of the material to obtain the pretreated material.

[0012] S4: Add a dispersant to the pretreated material, stir evenly, then add a water reducing agent, stir evenly, and then ball mill to obtain the product.

[0013] In the preparation steps of the present invention, by utilizing the characteristics of construction soil and construction slag and stone, they are combined into materials suitable for making ceramic raw materials. Then, the magnetic separation method is used to remove magnetic substances such as iron and titanium in the material, and then its porcelain-forming range is corrected to meet the requirements of ceramic porcelain-forming. Then, a dispersant and a water reducing agent are added to adjust to an appropriate viscosity to obtain ceramic raw materials with the required properties.

[0014] Further, before step S1, the following steps are also included:

[0015] S0-1: Add water to the construction slag and stone, stir while adding water, and then obtain the treated slag and stone through filtration.

[0016] Further, before step S2, the following steps are also included:

[0017] S0-2: By checking the source of the construction waste soil, judge its type of waste soil. If it is primary waste soil, directly enter step S2. If it is secondary waste soil, add water to the construction waste soil, stir while adding water, and then obtain the treated waste soil through filtration.

[0018] Through the judgment and treatment of this step, the organic matter / organic substances in the waste soil can be retained to the greatest extent possible, which is convenient for using the organic matter to improve the plasticity of the raw materials, reduce the viscosity, enhance the drying strength and shrinkage rate and other aspects of performance.

[0019] Further, in step S1, the particle size of the first material is 50 mesh - 100 mesh; in step S2, the particle size of the second material is 50 mesh - 100 mesh.

[0020] Further, in steps S1 and S2, the specific steps of magnetic separation are as follows:

[0021] Add coke powder to the material, stir evenly, then heat at 100°C - 150°C (at this temperature, part of the organic matter / organic substances can be retained) for 0.5 - 1 hour, and then after grinding, use a magnetic separator for separation to remove the magnetic substances in the material, and that's it. Among them, the addition amount of coke powder is 0 - 10 wt% of the total amount of the material, such as 0, 0.01, 0.05, 0.1, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, etc. Grinding includes dry grinding and wet grinding. The requirement for dry grinding is that the particle size is 100 mesh, and the steps for wet grinding are to add water to the material to make a slurry and make its Tu viscosity reach 30s - 60s.

[0022] Further, in step S3, the requirements for the porcelain-forming range are the following components in parts by weight:

[0023] 0 - 44 parts of Al2O3 (excluding 0 parts), 60 - 75 parts of SiO2, 0 - 6 parts of K2O, 0 - 6 parts of Na2O; 0 - 3 parts of MgO, 0 - 3 parts of CaO, 0 - 5 parts of Fe element, 0 - 5 parts of Ti element.

[0024] Further, in step S4, the requirements for the porcelain-forming range are the following components in parts by weight:

[0025] 16 - 22 parts of Al2O3, 60 - 70 parts of SiO2, 2 - 3 parts of K2O, 2 - 3 parts of Na2O; 0 - 3 parts of MgO (including 0 part), 0 - 3 parts of CaO (including 0 part), Fe element < 0.001 part, Ti element < 0.001 part. (The organic matter component is not included in the porcelain - forming range)

[0026] Further, in step S4, the dispersant is one or more of water, inorganic dispersants, organic small - molecule dispersants, and polymer dispersants. The addition amount of the dispersant is 0.1 - 2 wt% of the dry material amount of the pretreated material, such as 0.1, 0.4, 0.8, 1, 1.2, 1.5, 1.8, 2, etc.

[0027] Among them, the inorganic dispersant is one or more of sodium phosphate, sodium silicate, sodium carbonate, sodium metasilicate, and sodium tripolyphosphate; the organic small - molecule dispersant is one or more of sodium citrate, sodium stearate, sodium ethylenediaminetetraacetate (EDTA), and sodium hydroxyethyl ethylenediaminetriacetate (HEDTA); the polymer dispersant is one or more of polyacrylamide, sodium polyacrylate, and carboxymethyl cellulose.

[0028] Further, in step S4, the water - reducing agent is one or more of polyelectrolyte water - reducing agents, inorganic water - reducing agents, and polycarboxylate water - reducing agents. The addition amount of the water - reducing agent is 1 - 5 wt% of the dry material amount of the pretreated material, such as 1, 1.2, 1.5, 1.8, 2, 2.5, 3, 3.5, 4, 4.5, 5, etc.

[0029] Among them, the polyelectrolyte water - reducing agent is one or more of sodium humate, sodium carboxymethyl cellulose, and sodium lignosulfonate; the inorganic water - reducing agent is sodium silicate and / or sodium tripolyphosphate; the polycarboxylate water - reducing agent is one or more of methyl methacrylate / methyl acrylate copolymer, allyl ether copolymer, amide / imide - type polycarboxylic acid polymer, and amphoteric polycarboxylate water - reducing agent.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] The method of the present invention combines the characteristics of construction waste soil and construction waste stones to form materials suitable for making ceramic raw materials, then removes magnetic substances such as iron and titanium in the material by magnetic separation, and then corrects its porcelain - forming range to meet the requirements of ceramic porcelain - forming. Then, a dispersant and a water - reducing agent are added to adjust to an appropriate viscosity so as to obtain ceramic raw materials with the required properties. Detailed implementation mode

[0032] Next, in combination with specific embodiments, the present invention will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0033] Embodiment 1

[0034] A method for making ceramic raw materials includes the following steps:

[0035] S1: Collect construction slag and muck from a newly developed construction area at the first location;

[0036] S2: Add water to the construction slag, stir while adding water, then filter to remove wood, leaves, etc., to obtain the treated slag. Coarsely crush the treated slag with a crusher, then screen it with a vibrating screen to remove some useless materials such as batteries, and then place it in a grinding mill for fine grinding. Fine grind it to 80 mesh, then perform magnetic separation, analysis, and labeling. According to the Si / Al ratio range, label it as slag No. 2 to obtain the first material;

[0037] Among them, the specific steps of magnetic separation are as follows:

[0038] Add coke powder to the material, stir evenly, then heat it at 120 °C for 0.6 hours, then grind it to 100 mesh by dry grinding method, and then use a magnetic separator for separation to remove the magnetic substances in the material, that is, obtain it; among them, the addition amount of coke powder is 3 wt% of the total amount of the material;

[0039] S3: By checking the source of the construction muck, the source of the muck is primary muck. Coarsely crush the muck with a crusher, then screen it with a vibrating screen to remove some useless materials such as wood, leaves, etc., and then place it in a grinding mill for fine grinding. Fine grind it to 100 mesh, then perform magnetic separation, analysis, and labeling. According to the Si / Al ratio range, label it as muck No. 6 to obtain the second material;

[0040] Among them, the specific steps of magnetic separation are as follows:

[0041] Add coke powder to the material, stir evenly, then heat it at 100 °C for 0.6 hours, and then grind it by wet grinding method, which is to add water to the material to make a slurry, and make its Tu viscosity reach 30 s - 60 s, and then use a magnetic separator for separation to remove the magnetic substances in the material, that is, obtain it; among them, the addition amount of coke powder is 5 wt% of the total amount of the material;

[0042] S4: According to the user's requirements, batching is carried out, and the first material and the second material with a mass ratio of 1:4 are evenly mixed. The composition of the material meets the porcelain-forming range, and the composition of the material is the following components in parts by weight: 16 parts of Al2O3, 65 parts of SiO2, 1 part of K2O, 1 part of Na2O; 1 part of MgO, 1 part of CaO, Fe element < 0.001 part, Ti element < 0.001 part, labeled as white porcelain No. 1, without correction required, to obtain the pretreated material;

[0043] S5: Add 0.6 wt% sodium citrate to the pretreated material, stir evenly, then add 2 wt% sodium humate, stir evenly, and then ball mill to obtain the product.

[0044] Example 2

[0045] A method for making ceramic raw materials includes the following steps:

[0046] S1: Collect construction slag and muck from a newly developed construction area at the second location;

[0047] S2: Add water to the construction slag, stir while adding water, then filter to remove wood, leaves, etc., to obtain the treated slag. Coarsely crush the treated slag through a crusher, then screen it using a vibrating screen to remove some useless materials such as batteries, and then place it in a grinding mill for fine grinding to 100 mesh. Then, perform magnetic separation, analysis, and labeling. According to the Si / Al ratio range, label it as slag No. 4 to obtain the first material;

[0048] Among them, the specific steps of magnetic separation are:

[0049] Add coke powder to the material, stir evenly, then heat at 120 °C for 0.6 hours, and then grind it to 100 mesh by dry grinding method. After that, use a magnetic separator for separation to remove the magnetic substances in the material to obtain the product; among them, the addition amount of coke powder is 3 wt% of the total amount of the material;

[0050] S3: By checking the source of the construction muck, the source of the muck is primary muck. Coarsely crush the muck through a crusher, then screen it using a vibrating screen to remove some useless materials such as wood, leaves, etc., and then place it in a grinding mill for fine grinding to 80 mesh. Then, perform magnetic separation, analysis, and labeling. According to the Si / Al ratio range, label it as muck No. 2 to obtain the second material;

[0051] Among them, the specific steps of magnetic separation are:

[0052] Add coke powder to the material, stir evenly, then heat at 100 °C for 0.6 hours, and then grind it by wet grinding method. That is, add water to the material to make a slurry, and when its Tu viscosity reaches 30 s - 60 s, use a magnetic separator to separate and remove the magnetic substances in the material; among them, the addition amount of coke powder is 5 wt% of the total amount of the material.

[0053] S4: According to the user's requirements for batching, uniformly mix the first material and the second material with a mass ratio of 2:4.5. The composition of this material meets the porcelain-forming range, and the composition of the material is components in the following parts by weight: 22 parts of Al2O3, 63 parts of SiO2, 0.5 part of K2O, 0.5 part of Na2O; 1 part of MgO, 1 part of CaO, Fe element < 0.001 part, Ti element < 0.001 part, labeled as white porcelain No. 2, no correction is required, and the pretreated material is obtained.

[0054] S5: Add 0.6 wt% of sodium silicate to the pretreated material, stir evenly, then add 2 wt% of sodium carboxymethyl cellulose, stir evenly, and then ball mill to obtain the product.

[0055] Example 3

[0056] A method for making ceramic raw materials includes the following steps:

[0057] S1: Collect construction slag and muck from a newly developed construction area at the third place.

[0058] S2: Add water to the construction slag, stir while adding water, then filter to remove wood, leaves, etc., to obtain the treated slag. Coarsely crush the treated slag by a crusher, then screen it with a vibrating screen to remove some useless materials such as batteries, and then place it in a grinding machine for fine grinding to 100 mesh, and then perform magnetic separation, analysis and labeling. According to the Si / Al ratio range, it is labeled as slag No. 6 to obtain the first material.

[0059] Among them, the specific steps of magnetic separation are:

[0060] Add coke powder to the material, stir evenly, then heat at 120 °C for 1 hour, and then grind it to 100 mesh by dry grinding method, and then use a magnetic separator to separate and remove the magnetic substances in the material; among them, the addition amount of coke powder is 5 wt% of the total amount of the material.

[0061] S3: By checking the source of the construction muck, the source of the muck is primary muck. Coarsely crush the muck by a crusher, then screen it with a vibrating screen to remove some useless materials such as wood, leaves, etc., and then place it in a grinding machine for fine grinding to 80 mesh, and then perform magnetic separation, analysis and labeling. According to the Si / Al ratio range, it is labeled as muck No. 6 to obtain the second material.

[0062] Among them, the specific steps of magnetic separation are as follows:

[0063] Add coke powder to the material, stir evenly, then heat at 120 °C for 1 hour, and then grind it by wet grinding method. That is, add water to the material to make a slurry, and after its Tu viscosity reaches 30 s - 60 s, use a magnetic separator to separate and remove the magnetic substances in the material, and then it is obtained; among them, the addition amount of coke powder is 5 wt% of the total amount of the material.

[0064] S4: According to the user's requirements for batching, uniformly mix the first material and the second material with a mass ratio of 3:7. The composition of this material does not meet the porcelain-forming range. The composition of this material is components in the following weight parts: 10 parts of Al2O3, 50 parts of SiO2, 1 part of K2O, 1 part of Na2O; 0.2 part of MgO, 0.2 part of CaO, Fe element < 0.001 part, Ti element < 0.001 part. The product requires porcelain-forming to be components in the following weight parts: 32 parts of Al2O3, 60 parts of SiO2, 1 part of K2O, 1 part of Na2O; 0.2 part of MgO, 0.2 part of CaO, Fe element < 0.001 part, Ti element < 0.001 part. Add the corresponding raw materials lacking Al2O3 and SiO2 to make the composition of this material meet the porcelain-forming range, label it as white porcelain No. 4, and obtain the pretreated material.

[0065] S5: Add 0.6 wt% of sodium silicate to the pretreated material, stir evenly, then add 2 wt% of sodium carboxymethyl cellulose, stir evenly, and then ball mill to obtain it.

[0066] Example 4

[0067] A method for making ceramic raw materials includes the following steps:

[0068] S1: Collect construction slag and soil from a newly developed construction area at the fourth place.

[0069] S2: Add water to the construction slag, stir while adding water, then filter to remove wood and leaves to obtain the treated slag. Coarsely crush the treated slag by a crusher, then screen it with a vibrating screen to remove some useless materials such as batteries, and then place it in a grinding machine for fine grinding. Fine grind it to 100 mesh, then conduct magnetic separation, analysis and labeling. According to the Si / Al ratio range, label it as slag No. 5 to obtain the first material.

[0070] Among them, the specific steps of magnetic separation are as follows:

[0071] Add coke powder to the material, stir evenly, then heat at 100 °C for 1 hour, and then grind it to 100 mesh by dry grinding method, and then use a magnetic separator to separate and remove the magnetic substances in the material, and then it is obtained; among them, the addition amount of coke powder is 2 wt% of the total amount of the material.

[0072] S3: By checking the source of the construction waste soil, the source of this waste soil is primary waste soil. Coarsely crush the waste soil with a crusher, then use a vibrating screen for screening to remove some useless materials such as wood and leaves. Then place it in a grinding mill for fine grinding until it reaches 80 mesh. Then perform magnetic separation, analysis (the analysis shows that it contains 1 wt% of organic matter humic acid), and grading. According to the range of the Si / Al ratio, grade it as waste soil No. 5 to obtain the second material;

[0073] Among them, the specific steps of magnetic separation are as follows:

[0074] Add coke powder to the material, stir evenly, then heat at 100 °C for 1 hour, and then grind it by the wet grinding method, which is to add water to the material to make a pulp, and after its Tu viscosity reaches 30 s - 60 s, use a magnetic separator for separation to remove the magnetic substances in the material, and that's it; among them, the addition amount of coke powder is 3 wt% of the total amount of the material;

[0075] S4: Carry out batching according to user requirements, uniformly mix the first material and the second material with a mass ratio of 1.2:6.5. The composition of this material meets the porcelain-forming range. The composition of the material is components in the following weight parts: 32 parts of Al2O3, 60 parts of SiO2, 1 part of K2O, 1 part of Na2O; 0.2 part of MgO, 0.2 part of CaO, Fe element < 0.001 part, Ti element < 0.001 part. Add the component raw materials corresponding to the lacking Al2O3 and SiO2 to make the composition of this material meet the porcelain-forming range, and label it as white porcelain No. 4 to obtain the pretreated material;

[0076] S5: Add 0.6 wt% of sodium silicate to the pretreated material, stir evenly, then add 2 wt% of sodium carboxymethylcellulose, stir evenly, and then ball mill to obtain it.

[0077] Example 5

[0078] A method for making ceramic raw materials includes the following steps:

[0079] S1: Collect construction slag and waste soil from the construction area of the fifth old renovation site;

[0080] S2: Add water to the construction slag, stir while adding water, and then filter to remove wood and leaves to obtain the treated slag. Coarsely crush the treated slag with a crusher, then use a vibrating screen for screening to remove some useless materials such as batteries. Then place it in a grinding mill for fine grinding until it reaches 100 mesh. Then perform magnetic separation, analysis, and grading. According to the range of the Si / Al ratio, grade it as slag No. 2 to obtain the first material;

[0081] Among them, the specific steps of magnetic separation are as follows:

[0082] Add coke powder to the material, stir evenly, then heat at 120 °C for 0.6 hours, grind it to 100 mesh by dry grinding method, and then use a magnetic separator to separate and remove the magnetic substances in the material to obtain it; among them, the addition amount of coke powder is 2 wt% of the total amount of the material.

[0083] S3: By checking the source of the construction waste soil, the source of the waste soil is secondary waste soil. Add water to the construction waste soil, stir while adding water, then filter, and then coarsely crush the waste soil through a crusher, and then screen it with a vibrating screen to remove some useless materials such as batteries, and then place it in a grinding machine for fine grinding until it reaches 100 mesh, and then perform magnetic separation, analysis and labeling. According to the range of the Si / Al ratio, it is labeled as waste soil No. 3 to obtain the second material.

[0084] Among them, the specific steps of magnetic separation are:

[0085] Add coke powder to the material, stir evenly, then heat at 110 °C for 0.6 hours, and then grind it by wet grinding method. It is to add water to the material to make a slurry, and when its Tu viscosity reaches 30 s - 60 s, use a magnetic separator to separate and remove the magnetic substances in the material to obtain it; among them, the addition amount of coke powder is 3 wt% of the total amount of the material.

[0086] S4: Prepare the ingredients according to the user's requirements, and evenly mix the first material and the second material with a mass ratio of 1.5:5.3. The composition of the material meets the porcelain-forming range, and the composition of the material is the following components in parts by weight: 44 parts of Al2O3, 75 parts of SiO2, 3 parts of K2O, 3 parts of Na2O; 1 part of MgO, 2 parts of CaO, 1 part of Fe element, 3 parts of Ti element, labeled as black porcelain No. 1, and no correction is required to obtain the pretreated material.

[0087] Add 1 wt% of sodium tripolyphosphate to the pretreated material, stir evenly, then add 2 wt% of sodium carboxymethylcellulose, stir evenly, and then ball mill to obtain it.

[0088] Comparative Example 1

[0089] The difference from Example 1 is that the method of Comparative Example 1 is:

[0090] Collect the construction waste soil from the newly developed construction area at the first place. After crushing, screening and fine grinding the construction waste soil, obtain a powder mixture (without magnetic separation); after testing, the component composition of the material is the following components in parts by weight: 3.2 parts of Al2O3, 13 parts of SiO2, 0.2 parts of K2O, 0.2 parts of Na2O; 0.2 parts of MgO, 0.2 parts of CaO, 15 parts of Fe element, 5 parts of Ti element; then add 0.6 wt% of sodium citrate, stir evenly, then add 2 wt% of sodium humate, stir evenly, and then ball mill to obtain it.

[0091] Comparative Example 2

[0092] Differing from Example 1, the method of Comparative Example 2 was as follows:

[0093] Construction waste stones were collected from a newly developed construction area at the first location. After crushing, screening, and fine grinding the construction waste stones, a powder mixture was obtained; magnetic separation was carried out. After testing, the component composition of the material was the following components by weight: 12.8 parts of Al2O3, 52 parts of SiO2, 0.8 part of K2O, 0.8 part of Na2O; 0.8 part of MgO, 0.8 part of CaO, 2 parts of Fe element, 1 part of Ti element; then 0.6 wt% of sodium citrate was added and stirred evenly, and then 2 wt% of sodium humate was added and stirred evenly, and then ball milling was carried out to obtain the product.

[0094] Performance Test

[0095] (1) Abrasion Resistance Test

[0096] The slurry was used to prepare 1*1 cm ceramic test products according to the ceramic preparation process. The Rockwell hardness test method was used to test the hardness of the surface of the ceramic test products at different positions, and the average value of three measurements was taken.

[0097] (2) Gas Permeability Test

[0098] The slurry was used to prepare 1*1 cm ceramic test products according to the ceramic preparation process. A gas permeability tester was used to test the products, and the average value of three measurements was taken.

[0099] (3) Compressive Strength Test

[0100] The compressive strength of the samples was tested in accordance with GB / T29554-2010.

[0101] (4) The test results are shown in Table 1 below.

[0102] Table 1

[0103]

[0104]

[0105] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention fall within the scope of protection required by the present invention.

Claims

1. A method for making ceramic raw materials using construction waste soil and construction waste stones, characterized in that, It includes the following preparation steps: S1: Coarsely crush construction slag and stone through a crusher, then screen it to remove impurities, then place it in a grinding mill for fine grinding, and then perform magnetic separation, analysis, and grading to obtain the first material; S2: Coarsely crush construction soil through a crusher, then screen it to remove impurities, then place it in a grinding mill for fine grinding, and then perform magnetic separation, analysis, and grading to obtain the second material; S3: Uniformly mix the first material and the second material with a mass ratio of (1 - 3):(4 - 7). If the composition of the material meets the porcelain-forming range, mark the composition of the material. If the composition of the material does not meet the porcelain-forming range, return to step S3 or add the corresponding missing component raw materials to correct the porcelain formation of the material composition, and then mark the composition of the material to obtain the pretreated material; S4: Add a dispersant to the pretreated material and stir evenly, then add a water reducing agent and stir evenly, and then perform ball milling to obtain the product.

2. The method for manufacturing ceramic raw materials using construction waste soil and construction waste stones according to claim 1, wherein In step S1, the particle size of the first material is 50 mesh - 100 mesh; in step S2, the particle size of the second material is 50 mesh - 100 mesh.

3. The method for manufacturing ceramic raw materials using construction waste soil and construction waste stones according to claim 1, characterized in that, In steps S1 and S2, the specific steps of magnetic separation are: Add coke powder to the material, stir evenly, then heat at 100°C - 150°C for 0.5 - 1 hour, and then after grinding, use a magnetic separator for separation to remove the magnetic substances in the material, and that's it. Among them, the addition amount of coke powder is 0 - 10wt% of the total amount of the material.

4. The method for producing ceramic raw materials using construction waste soil and construction waste stones according to claim 1, characterized in that, In step S3, the requirements for the porcelain-forming range are the following components in parts by weight: 0 - 44 parts of Al2O3, 60 - 75 parts of SiO2, 0 - 6 parts of K2O, 0 - 6 parts of Na2O; 0 - 3 parts of MgO, 0 - 3 parts of CaO, 0 - 5 parts of Fe element, 0 - 5 parts of Ti element.

5. The method for manufacturing ceramic raw materials using construction waste soil and construction waste stones according to claim 1, wherein In step S4, the dispersant is one or more of water, inorganic dispersants, organic small molecule dispersants, and polymer dispersants.

6. The method for making ceramic raw materials using construction waste soil and construction waste stones according to claim 5, wherein, The addition amount of the dispersant is 0.1 - 2wt% of the dry material amount of the pretreated material.

7. The method for producing ceramic raw materials using construction waste soil and construction waste stones according to claim 5, characterized in that, The inorganic dispersant is one or more of sodium phosphate, sodium silicate, sodium carbonate, sodium metasilicate, and sodium tripolyphosphate; the organic small molecule dispersant is one or more of sodium citrate, sodium stearate, sodium ethylenediaminetetraacetate (EDTA), and sodium hydroxyethyl ethylenediaminetriacetate (HEDTA); the polymer dispersant is one or more of polyacrylamide, sodium polyacrylate, and carboxymethyl cellulose.

8. The method for manufacturing ceramic raw materials using construction waste soil and construction waste stones according to claim 1, characterized in that, In step S4, the water reducing agent is one or more of polyelectrolyte water reducing agents, inorganic water reducing agents, and polycarboxylate water reducing agents.

9. The method for producing ceramic raw materials using construction waste soil and construction waste stones according to claim 8, characterized in that, The addition amount of the water reducing agent is 1 - 5wt% of the dry material amount of the pretreated material.

10. The method for making ceramic raw materials using construction waste soil and construction waste stones according to claim 8, characterized in that, The polyelectrolyte water reducing agent is one or more of sodium humate, sodium carboxymethylcellulose, and sodium lignosulfonate; the inorganic water reducing agent is water glass and / or sodium tripolyphosphate; the polycarboxylate water reducing agent is one or more of methyl methacrylate / methyl acrylate copolymer, allyl ether copolymer, amide / imide type polycarboxylate polymer, and amphoteric polycarboxylate water reducing agent.

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