CN111592337A - Stone powder brick making process - Google Patents
Stone powder brick making process Download PDFInfo
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- CN111592337A CN111592337A CN202010361153.4A CN202010361153A CN111592337A CN 111592337 A CN111592337 A CN 111592337A CN 202010361153 A CN202010361153 A CN 202010361153A CN 111592337 A CN111592337 A CN 111592337A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1328—Waste materials; Refuse; Residues without additional clay
-
- 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
- C04B33/00—Clay-wares
- C04B33/24—Manufacture of porcelain or white ware
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a stone powder brick making process, which comprises the following steps: step one, a size mixing procedure; step two, a grading process: grading the stone powder slurry a obtained in the step one; step three, a concentration process: concentrating and dehydrating the stone powder slurry b obtained in the step two; step four, a filter pressing process: carrying out filter pressing on the slurry c obtained in the step three; step five, a forming procedure: forming the filter cake d obtained in the step four; step six, a drying procedure: drying the embryo body e obtained in the fifth step; step seven, a firing process: and (5) firing the green brick f obtained in the sixth step. The invention has the beneficial effects that: 1. the invention uses the aggregate stone powder as the raw material, which is beneficial to reducing the discharge of solid waste in the production of the aggregate and improving the utilization efficiency of resources; 2. the invention does not use the clay raw material required by the traditional brick making, is beneficial to protecting clay resources and farmland protection; 3. the invention has large forming pressure, is beneficial to improving the compressive strength which can reach more than 30 MPa.
Description
Technical Field
The invention relates to the field of inorganic non-metallic materials, in particular to a stone powder brick making process.
Background
The production of the sandstone aggregate inevitably generates stone powder, which not only has adverse effect on the environment, but also wastes ore resources. On the other hand, bricks are an important material in building engineering, the traditional production process needs a large amount of clay, the large amount of clay is used for exploiting precious clay resources or destroying cultivated land, and the resources and the cultivated land protection are adversely affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a stone powder brick making process.
The purpose of the invention is achieved by the following technical scheme: the invention relates to a stone powder brick making process, which comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry and uniformly stirring to obtain stone powder slurry a;
step two, a grading process:
grading the stone powder slurry a obtained in the step one by using grading equipment, and removing large particle solids to obtain fine particle stone powder slurry b;
step three, a concentration process:
concentrating and dehydrating the stone powder slurry b obtained in the step two through concentrating and dehydrating equipment to obtain concentrated slurry c;
step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d;
step five, a forming procedure:
forming the filter cake d obtained in the fourth step to obtain a blank body e;
step six, a drying procedure:
drying the blank e obtained in the fifth step to obtain a green brick f;
step seven, a firing process:
and C, firing the green brick f obtained in the sixth step to obtain a brick g, wherein the brick g is a finished product.
Furthermore, the stone powder in the step one is one or more of stone powder generated by preparing the sandstone aggregate by a wet method, a dry method and a semi-dry method; the mass percentage of water contained in the stone powder slurry a is 55-90%.
Furthermore, the grading equipment in the second step is one or two of a desliming tank, a hydrocyclone and a spiral classifier; the particle size of the solid in the stone powder slurry b is not more than 0.045 mm.
Furthermore, the concentration and dehydration equipment in the third step is one or two of a thickener and a concentration tank; in the process, 2-50 g of flocculating agent is added per ton of solid weight; and the water content of the slurry c is not more than 55 percent by mass.
Furthermore, the mass percent of water contained in the filter cake d in the step four is not more than 30%.
Furthermore, the forming pressure in the forming process in the fifth step is not less than 20 MPa.
Furthermore, in the sixth step, the drying temperature in the drying procedure is not less than 100 ℃, and the drying time is 2-5 hours.
Furthermore, in the seventh step, the sintering temperature is 850-1100 ℃, and the sintering time is 5-15 hours.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention uses the aggregate stone powder as the raw material, which is beneficial to reducing the discharge of solid waste in the production of the aggregate and improving the utilization efficiency of resources;
2. the invention does not use the clay raw material required by the traditional brick making, is beneficial to protecting clay resources and farmland protection;
3. the invention has large forming pressure, is beneficial to improving the compressive strength which can reach more than 30 MPa.
Drawings
FIG. 1 is a block diagram of the process flow of the present invention.
Detailed Description
The invention will be further described with respect to specific embodiments in conjunction with the following drawings:
as shown in fig. 1, the stone powder brick making process of the present invention comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry and uniformly stirring to obtain stone powder slurry a; the stone powder is one or more of stone powders generated by preparing sandstone aggregates by a wet method, a dry method and a semi-dry method; the mass percentage of water contained in the stone powder slurry a is 55-90%.
Step two, a grading process:
grading the stone powder slurry a obtained in the step one by using grading equipment, and removing large particle solids to obtain fine particle stone powder slurry b; the grading equipment is one or two of a desliming tank, a hydrocyclone and a spiral classifier; the particle size of the solid in the stone powder slurry b is not more than 0.045 mm.
Step three, a concentration process:
concentrating and dehydrating the stone powder slurry b obtained in the step two through concentrating and dehydrating equipment to obtain concentrated slurry c; the concentration dehydration equipment is one or two of a thickener and a concentration tank; in the process, 2-50 g of flocculating agent is added per ton of solid weight; and the water content of the slurry c is not more than 55 percent by mass.
Step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d; wherein the mass percent of water contained in the filter cake d is not more than 30%.
Step five, a forming procedure:
forming the filter cake d obtained in the fourth step to obtain a blank body e, wherein the forming pressure is not less than 20 MPa;
step six, a drying procedure:
drying the blank e obtained in the fifth step at a drying temperature of not less than 100 ℃ for 2-5 hours to obtain a green brick f;
step seven, a firing process:
and (4) firing the green brick f obtained in the sixth step at 850-1100 ℃ for 5-15 hours to obtain a brick g, wherein the brick g is a finished product.
Example 1: the stone powder brick making process comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry, and uniformly stirring to obtain stone powder slurry a, wherein the water content of the stone powder slurry a is 80% by mass;
step two, a grading process:
grading the stone powder slurry a obtained in the step one by using a hydrocyclone, and removing large particle solids to obtain fine stone powder slurry b with the particle size not more than 0.03 mm;
step three, a concentration process:
adding 5g of flocculating agent into the stone powder slurry b obtained in the step two according to the weight of solid per ton, and then concentrating and dehydrating the stone powder slurry b by using a thickener to obtain slurry c containing 45% of water by mass percent after concentration;
step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d containing 18% of water by mass;
step five, a forming procedure:
forming the filter cake d obtained in the fourth step under the pressure of 20MPa to obtain a blank body e;
step six, a drying procedure:
drying the blank e obtained in the fifth step for 3 hours at the temperature of 200-250 ℃ to obtain a green brick f;
step seven, a firing process:
firing the green brick f obtained in the sixth step for 6.5 hours at the temperature of 850-980 ℃ to obtain a brick g; the brick g is a finished product.
The invention has large forming pressure, is beneficial to improving the compressive strength, and the compressive strength reaches 30 MPa.
Example 2: the stone powder brick making process comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry, and uniformly stirring to obtain stone powder slurry a, wherein the water content of the stone powder slurry a is 75% by mass;
step two, a grading process:
grading the stone powder slurry a obtained in the step one by using a dehydration tank, and removing large particle solids to obtain fine particle stone powder slurry b with the particle size not more than 0.04 mm;
step three, a concentration process:
adding 10g of flocculating agent into the stone powder slurry b obtained in the step two according to the weight of solid per ton, and then concentrating and dehydrating the stone powder slurry b by using a thickener to obtain slurry c containing 40% of water by mass percent after concentration;
step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d with the water content of 20% by mass;
step five, a forming procedure:
forming the filter cake d obtained in the fourth step under the pressure of 25MPa to obtain a blank body e;
step six, a drying procedure:
drying the blank e obtained in the fifth step for 3.5 hours at the temperature of 200-250 ℃ to obtain a green brick f;
step seven, a firing process:
firing the green brick f obtained in the sixth step for 8 hours at the temperature of 850-980 ℃ to obtain a brick g; the brick g is a finished product.
The invention has large forming pressure, is beneficial to improving the compressive strength, and the compressive strength reaches 33 MPa.
Example 3: the stone powder brick making process comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry, and uniformly stirring to obtain stone powder slurry a, wherein the water content of the stone powder slurry a is 82% by mass;
step two, a grading process:
grading the stone powder slurry a obtained in the step one by using a hydrocyclone, and removing large particle solids to obtain fine particle stone powder slurry b with the particle size not more than 0.035 mm;
step three, a concentration process:
adding 20g of flocculating agent into the stone powder slurry b obtained in the step two according to the weight of solid per ton, and then concentrating and dehydrating the slurry b by using a thickener to obtain slurry c containing 50% of water by mass percent after concentration;
step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d containing 15% of water by mass;
step five, a forming procedure:
forming the filter cake d obtained in the fourth step under the pressure of 30MPa to obtain a blank body e;
step six, a drying procedure:
drying the blank e obtained in the fifth step for 4 hours at the temperature of 200-250 ℃ to obtain a green brick f;
step seven, a firing process:
firing the green brick f obtained in the sixth step for 10 hours at the temperature of 850-980 ℃ to obtain a brick g; the brick g is a finished product.
The invention has large forming pressure, is beneficial to improving the compressive strength, and the compressive strength reaches 35 MPa.
Example 4: the stone powder brick making process comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry, and uniformly stirring to obtain stone powder slurry a, wherein the water content of the stone powder slurry a is 75% by mass;
step two, a grading process:
grading the stone powder slurry a obtained in the step one by using a spiral classifier, and removing large particle solids to obtain fine particle stone powder slurry b with the particle size not greater than 0.04 mm;
step three, a concentration process:
adding 25g of flocculating agent into the stone powder slurry b obtained in the step two according to the weight of solid per ton, and then concentrating and dehydrating the stone powder slurry b by using a thickener to obtain slurry c containing 40% of water by mass percent after concentration;
step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d containing 17% of water by mass;
step five, a forming procedure:
forming the filter cake d obtained in the fourth step under the pressure of 35MPa to obtain a blank body e;
step six, a drying procedure:
drying the blank e obtained in the fifth step for 3.5 hours at the temperature of 200-250 ℃ to obtain a green brick f;
step seven, a firing process:
firing the green brick f obtained in the sixth step for 12 hours at the temperature of 850-980 ℃ to obtain a brick g; the brick g is a finished product;
the invention has large forming pressure, is beneficial to improving the compressive strength, and the compressive strength reaches 36.6 MPa.
Example 5: the stone powder brick making process comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry and uniformly stirring to obtain stone powder slurry a, wherein the water content of the stone powder slurry a is 85% by mass;
step two, a grading process:
grading the stone powder slurry a obtained in the step one by using a hydrocyclone, and removing large particle solids to obtain fine stone powder slurry b with the particle size not more than 0.03 mm;
step three, a concentration process:
adding 40g of flocculating agent into the stone powder slurry b obtained in the step two according to the weight of solid per ton, and then concentrating and dehydrating the stone powder slurry b by using a thickener to obtain slurry c containing 45% of water by mass percent after concentration;
step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d with the water content of 16% by mass;
step five, a forming procedure:
forming the filter cake d obtained in the fourth step under the pressure of 37MPa to obtain a blank body e;
step six, a drying procedure:
drying the blank e obtained in the fifth step for 3 hours at the temperature of 200-250 ℃ to obtain a green brick f;
step seven, a firing process:
firing the green brick f obtained in the sixth step for 10.5 hours at the temperature of 850-980 ℃ to obtain a brick g;
the brick g is a finished product;
the invention has large forming pressure, is beneficial to improving the compressive strength, and the compressive strength reaches 38.7 MPa.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (8)
1. A stone powder brick making process is characterized in that: the process comprises the following steps:
step one, a size mixing procedure:
adding water into stone powder or stone powder-containing slurry and uniformly stirring to obtain stone powder slurry a;
step two, a grading process:
grading the stone powder slurry a obtained in the step one by using grading equipment, and removing large particle solids to obtain fine particle stone powder slurry b;
step three, a concentration process:
concentrating and dehydrating the stone powder slurry b obtained in the step two through concentrating and dehydrating equipment to obtain concentrated slurry c;
step four, a filter pressing process:
carrying out filter pressing on the slurry c obtained in the step three to obtain a filter cake d;
step five, a forming procedure:
forming the filter cake d obtained in the fourth step to obtain a blank body e;
step six, a drying procedure:
drying the blank e obtained in the fifth step to obtain a green brick f;
step seven, a firing process:
and C, firing the green brick f obtained in the sixth step to obtain a brick g, wherein the brick g is a finished product.
2. The stone powder brick making process according to claim 1, which is characterized in that: step one, the stone powder is one or more of stone powders generated by preparing sandstone aggregates by a wet method, a dry method and a semi-dry method; the mass percentage of water contained in the stone powder slurry a is 55-90%.
3. The stone powder brick making process according to claim 1, which is characterized in that: step two, the classification equipment is one or two of a desliming tank, a hydrocyclone and a spiral classifier; the particle size of the solid in the stone powder slurry b is not more than 0.045 mm.
4. The stone powder brick making process according to claim 1, which is characterized in that: step three, the concentration dehydration equipment is one or two of a thickener and a concentration tank; in the process, 2-50 g of flocculating agent is added per ton of solid weight; and the water content of the slurry c is not more than 55 percent by mass.
5. The stone powder brick making process according to claim 1, which is characterized in that: and fourthly, the mass percent of water contained in the filter cake d is not more than 30%.
6. The stone powder brick making process according to claim 1, which is characterized in that: step five, the forming pressure in the forming procedure is not less than 20 MPa.
7. The stone powder brick making process according to claim 1, wherein in the drying step six, the drying temperature is not less than 100 ℃, and the drying time is 2-5 hours.
8. The stone powder brick making process according to claim 1, wherein in the seventh step, the firing temperature is 850-1100 ℃, and the firing time is 5-15 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361153.4A CN111592337A (en) | 2020-04-30 | 2020-04-30 | Stone powder brick making process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361153.4A CN111592337A (en) | 2020-04-30 | 2020-04-30 | Stone powder brick making process |
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| CN111592337A true CN111592337A (en) | 2020-08-28 |
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| CN202010361153.4A Pending CN111592337A (en) | 2020-04-30 | 2020-04-30 | Stone powder brick making process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030013599A1 (en) * | 2001-07-09 | 2003-01-16 | Brosnan Denis A. | Method for processing clay ceramic materials |
| CN101786288A (en) * | 2010-02-09 | 2010-07-28 | 武汉理工大学 | Method for preparing split bricks by utilizing tailings of high phosphorus hematite |
| CN106966697A (en) * | 2017-04-24 | 2017-07-21 | 绵阳耀邦环保科技有限公司 | Method based on high sulfur coal gangue slime separation brickmaking |
| CN110204284A (en) * | 2019-06-26 | 2019-09-06 | 华新新型建筑材料有限公司 | Aggregate waste residue brickmaking technology |
| CN110981296A (en) * | 2019-11-28 | 2020-04-10 | 上海智平基础工程有限公司 | Pressing method brick making process for building waste mud |
-
2020
- 2020-04-30 CN CN202010361153.4A patent/CN111592337A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030013599A1 (en) * | 2001-07-09 | 2003-01-16 | Brosnan Denis A. | Method for processing clay ceramic materials |
| CN101786288A (en) * | 2010-02-09 | 2010-07-28 | 武汉理工大学 | Method for preparing split bricks by utilizing tailings of high phosphorus hematite |
| CN106966697A (en) * | 2017-04-24 | 2017-07-21 | 绵阳耀邦环保科技有限公司 | Method based on high sulfur coal gangue slime separation brickmaking |
| CN110204284A (en) * | 2019-06-26 | 2019-09-06 | 华新新型建筑材料有限公司 | Aggregate waste residue brickmaking technology |
| CN110981296A (en) * | 2019-11-28 | 2020-04-10 | 上海智平基础工程有限公司 | Pressing method brick making process for building waste mud |
Non-Patent Citations (1)
| Title |
|---|
| RENATO MANCIN: "天然石材锯切石粉浆在工程和工业领域中的应用与处理(第一部分)", 《石材》 * |
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Application publication date: 20200828 |
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