CN112358314A - Method for producing foamed ceramic by using piling mud - Google Patents
Method for producing foamed ceramic by using piling mud Download PDFInfo
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- CN112358314A CN112358314A CN202011198402.9A CN202011198402A CN112358314A CN 112358314 A CN112358314 A CN 112358314A CN 202011198402 A CN202011198402 A CN 202011198402A CN 112358314 A CN112358314 A CN 112358314A
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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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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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
- C04B33/131—Inorganic additives
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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
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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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
- 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)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to a method for producing foamed ceramics by using piling mud. The invention reduces the cost of the foamed ceramics, and reduces the cost of slurry treatment and adverse effect on the environment. 60-70 parts of dried Shaoxing piling mud slurry, 25-30 parts of diatomite and 10-15 parts of solid sodium silicate are put into a ball mill, water is added into the ball mill, the weight ratio of the material to the water is 2: 1, the ball milling is carried out for 3-5 hours, then the slurry with coarse particles larger than 0.14 mm removed is put into a spiral stirrer, 4-5% of industrial hydrogen peroxide with the concentration of 30% is added to prepare foaming foam, the foaming foam is stirred and foamed and then is quickly poured into a steel die, a blank is prepared after 12 hours of solidification and demoulding, the blank is put into a kiln tool of a tunnel kiln car to be fired, the sintering temperature is 700 ℃ and 800 ℃, and the blank is taken out of the kiln after cooling, thus obtaining the foaming ceramic.
Description
Technical Field
The invention relates to a method for producing foamed ceramics by using piling mud.
Background
The outstanding problem faced in piling in building construction is the handling and rational application of the piling mud. The mud treatment directly influences the construction progress and quality and is also a difficult problem which puzzles the engineering construction. The piling mud in the Shaoxing area is a suspension liquid containing a certain amount of fine mud particles in water, has a certain viscosity, and is difficult to separate after standing for a long time. If the piling mud is not properly treated, serious environmental pollution can be caused, not only can water and soil loss be caused, but also rivers can be seriously blocked, the water quality is influenced, and the environment is damaged. The common slurry treatment mode is to use a tank to handle the site slurry water to be transported to a suburb garbage site for natural drying, and the treatment mode has high cost and low efficiency. In addition, a sedimentation tank method, a natural dewatering method, a flocculation treatment method, an equipment treatment method and the like are adopted, and which slurry treatment scheme is adopted is determined according to the environment of a construction site and the slurry condition. The dehydrated slurry dry material is mostly used for backfilling and brickmaking, and other application methods of slurry are developed more, which becomes a problem to be solved at present.
Disclosure of Invention
In order to solve the problems, the invention provides a method for producing foamed ceramics by using pile-driving mud, which takes the pile-driving mud in Shaoxing areas as a main raw material, reduces the cost of the foamed ceramics, reduces the cost of mud treatment and adverse effect on the environment, and provides a new method and thought for the application of the Shaoxing pile-driving mud.
In order to achieve the above object, a method for producing foamed ceramics using a pile driving slurry, comprising the steps of:
(1) dewatering and drying the Shaoxing piling mud;
(2) putting 60-70 parts of dried mud material, 25-30 parts of diatomite and 10-15 parts of solid sodium silicate in a weight ratio into a ball mill, adding water into the ball mill, wherein the weight ratio of the material to the water is 2: 1, discharging the slurry after ball milling for 3-5 hours, removing coarse particles larger than 0.14 mm by using a vibrating screen, and then putting the slurry into a spiral stirrer;
(3) adding industrial hydrogen peroxide with the concentration of 30% into a foaming machine to prepare foaming foam;
(4) adding 4-5% by weight of the foaming foam obtained in the step (3) into the spiral stirrer in the step (2), stirring and foaming for 2-3 minutes at the same time, and quickly pouring into a steel mould;
(5) and (3) demolding after 12-hour curing, placing the blank subjected to demolding on kiln furniture of a tunnel kiln car for firing at the sintering temperature of 700-800 ℃, and taking out of the kiln after cooling to obtain the foamed ceramic.
Preferably, the dehydration drying process in step (1) is as follows: dewatering the piling slurry by a centrifugal slurry dewatering machine to enable the water content of the slurry to be 25%, placing the dewatered slurry in a storage yard, and naturally drying.
Preferably, the compressive strength of the blank in the step (5) is more than 0.4-0.5MPa, and the apparent density is 300-350 kg/m.
Preferably, the compressive strength of the foamed ceramic prepared in the step (5) is more than 1.5-2.5MPa, the density is 300kg/m, and the heat conductivity coefficient is 0.065-0.071W/(m.K).
Detailed Description
Example 1
A method for producing foamed ceramics by using piling mud comprises the following steps:
(1) dewatering the piling mud in the Shaoxing area by using centrifugal mud dewatering equipment to enable the water content of the piling mud to be 25%, and then placing the piling mud in a storage yard for natural drying;
(2) putting 60 parts of dried mud material, 30 parts of diatomite and 10 parts of solid sodium silicate in a ball mill of a ceramic factory, adding water into the ball mill according to the weight ratio of the material to the water of 2: 1, carrying out ball milling for 3 hours, discharging the mud after the mud becomes slurry with good fluidity, removing coarse particles larger than 0.14 mm from the slurry through a vibrating screen, and putting the filtered material into a spiral stirrer;
(3) adding industrial hydrogen peroxide with the concentration of 30% into a foaming machine to prepare foaming foam;
(4) adding the foaming foam obtained in the step (3) into the spiral stirrer in the step (2), wherein the addition amount of the foaming foam is 4% of the weight ratio of the materials, stirring and foaming for 3 minutes while adding, and then quickly pouring the materials into a container with the length multiplied by the width multiplied by the height: 0.6m is multiplied by 0.3m and is sprayed with a steel die of a stripping oil coating;
(5) curing for 12 hours, demoulding to obtain a blank with compressive strength of 0.45Mpa and apparent density of 300kg/m, putting the blank on the car surface of a tunnel kiln, firing in a kiln, rapidly heating up to 750 ℃ at the heating rate of 150 ℃ per hour, preserving heat for 30 minutes, cooling at the cooling rate of 100 ℃ per hour, and taking out of the kiln to obtain the foamed ceramic product with the specification of 0.6 mx 0.3 m. The compressive strength of the product obtained by the low-temperature quick firing is 1.5Mpa, the density is 200 kg/m and the thermal conductivity coefficient is 0.065W/(m.K).
Example 2
A method for producing foamed ceramics by using piling mud comprises the following steps:
(1) dewatering the piling mud in the Shaoxing area by using centrifugal mud dewatering equipment to enable the water content of the piling mud to be 25%, and then placing the piling mud in a storage yard for natural drying;
(2) putting 70 parts of dried mud material, 30 parts of diatomite and 15 parts of solid sodium silicate into a mill according to the weight ratio of water to water of 2: 1, adding water into the mill, performing ball milling for 5 hours, discharging the slurry after the slurry becomes slurry with good fluidity, removing coarse particles larger than 0.14 mm from the slurry through a vibrating screen, and putting the filtered material into a spiral stirrer;
(3) adding industrial hydrogen peroxide with the concentration of 30% into a foaming machine to prepare foaming foam;
(4) and (3) adding the foaming foam obtained in the step (3) into the spiral stirrer in the step (2) according to the weight ratio of 5%, stirring and foaming while adding for 2 minutes, and then quickly pouring the materials into a container with the length multiplied by the width multiplied by the height: 0.6m is multiplied by 0.3m and is sprayed with a steel die of a stripping oil coating;
(5) curing for 12 hours, demoulding to obtain a blank with compressive strength of 0.5Mpa and apparent density of 350kg/m for thin film planting, putting the blank on the car surface of a tunnel kiln, baking in a kiln, rapidly heating to 800 ℃ at a heating rate of 150 ℃ per hour, preserving heat for 30 minutes, cooling at a cooling rate of 100 ℃ per hour, and taking out of the kiln to realize low-temperature rapid baking to obtain a foamed ceramic product with the specification of 0.6 mx0.6 mx0.3 m, wherein the compressive strength is 2.0Mpa, the density is 280kg/m, and the heat conductivity is 0.071W/(m.K).
Claims (4)
1. A method for producing foamed ceramics by using piling mud is characterized by comprising the following steps:
(1) dewatering and drying the Shaoxing piling mud;
(2) putting 60-70 parts of dried mud material, 25-30 parts of diatomite and 10-15 parts of solid sodium silicate in a weight ratio into a ball mill, adding water into the ball mill, wherein the weight ratio of the material to the water is 2: 1, discharging the slurry after ball milling for 3-5 hours, removing coarse particles larger than 0.14 mm by using a vibrating screen, and then putting the slurry into a spiral stirrer;
(3) adding industrial hydrogen peroxide with the concentration of 30% into a foaming machine to prepare foaming foam;
(4) adding 4-5% by weight of the foaming foam obtained in the step (3) into the spiral stirrer in the step (2), stirring and foaming for 2-3 minutes at the same time, and quickly pouring into a steel mould;
(5) and (3) demolding after 12-hour curing, placing the blank subjected to demolding on kiln furniture of a tunnel kiln car for firing at the sintering temperature of 700-800 ℃, and taking out of the kiln after cooling to obtain the foamed ceramic.
2. The method for producing foamed ceramics using the piling mud as set forth in claim 1, wherein the dehydration drying process in the step (1) is: dewatering the piling slurry by a centrifugal slurry dewatering machine to enable the water content of the slurry to be 25%, placing the dewatered slurry in a storage yard, and naturally drying.
3. The method for producing foamed ceramic using the piling mud as recited in claim 1, wherein the compressive strength of the blank in step (5) is greater than 0.4-0.5Mpa, and the apparent density is 300-350 kg/m.
4. The method as claimed in claim 1, wherein the compressive strength of the foamed ceramic obtained in step (5) is greater than 1.5-2.5MPa, the density is 200-300kg/m and the thermal conductivity is 0.065-0.071W/(m.K).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198402.9A CN112358314A (en) | 2020-10-31 | 2020-10-31 | Method for producing foamed ceramic by using piling mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011198402.9A CN112358314A (en) | 2020-10-31 | 2020-10-31 | Method for producing foamed ceramic by using piling mud |
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| Publication Number | Publication Date |
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| CN112358314A true CN112358314A (en) | 2021-02-12 |
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| CN202011198402.9A Pending CN112358314A (en) | 2020-10-31 | 2020-10-31 | Method for producing foamed ceramic by using piling mud |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008123671A2 (en) * | 2007-04-04 | 2008-10-16 | Sem Co., Ltd. | Ceramic foam and method for manufacturing it |
| CN103641441A (en) * | 2013-11-13 | 2014-03-19 | 绍兴市新科节能建材有限公司 | Method for preparation of heat preservation light material by pile mud foaming |
| CN108658592A (en) * | 2018-05-30 | 2018-10-16 | 佛山市航祥千安科技有限公司 | A kind of water purification porous ceramic film material |
| CN110294633A (en) * | 2018-03-23 | 2019-10-01 | 国家能源投资集团有限责任公司 | The method that porous ceramics and gasification slag prepare porous ceramics |
| CN110950631A (en) * | 2019-11-29 | 2020-04-03 | 安徽云数推网络科技有限公司 | Lightweight foamed ceramic insulation board prepared from tailings and preparation method thereof |
| WO2020101200A1 (en) * | 2018-11-12 | 2020-05-22 | 구본주 | Method for manufacturing porous ceramic article |
-
2020
- 2020-10-31 CN CN202011198402.9A patent/CN112358314A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008123671A2 (en) * | 2007-04-04 | 2008-10-16 | Sem Co., Ltd. | Ceramic foam and method for manufacturing it |
| CN103641441A (en) * | 2013-11-13 | 2014-03-19 | 绍兴市新科节能建材有限公司 | Method for preparation of heat preservation light material by pile mud foaming |
| CN110294633A (en) * | 2018-03-23 | 2019-10-01 | 国家能源投资集团有限责任公司 | The method that porous ceramics and gasification slag prepare porous ceramics |
| CN108658592A (en) * | 2018-05-30 | 2018-10-16 | 佛山市航祥千安科技有限公司 | A kind of water purification porous ceramic film material |
| WO2020101200A1 (en) * | 2018-11-12 | 2020-05-22 | 구본주 | Method for manufacturing porous ceramic article |
| CN110950631A (en) * | 2019-11-29 | 2020-04-03 | 安徽云数推网络科技有限公司 | Lightweight foamed ceramic insulation board prepared from tailings and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| ALEKSANDRA ŠAPONJIĆ ET.AL: "Porous ceramicmonolithsbasedondiatomite", 《CERAMICS INTERNATIONAL》 * |
| 张文毓: "泡沫陶瓷的研究现状与应用进展", 《陶瓷》 * |
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