CN104609888A - Production process of foamed ceramics - Google Patents
Production process of foamed ceramics Download PDFInfo
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- CN104609888A CN104609888A CN201510039516.1A CN201510039516A CN104609888A CN 104609888 A CN104609888 A CN 104609888A CN 201510039516 A CN201510039516 A CN 201510039516A CN 104609888 A CN104609888 A CN 104609888A
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- foamed ceramics
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Abstract
The invention relates to a production process of foamed ceramics. The production process comprises the following steps: (1) smashing raw materials; (2) mixing and grinding the raw materials; (3) drying and pelleting; (4) oxidizing and foaming; (5) annealing and forming. According to the production process of foamed ceramics, building waste and discarded materials are adopted as the raw materials to produce the foamed ceramics with excellent fire resistance, low water absorption and volume weight, so that the production cost is greatly reduced, and the difficulty that the building waste and discarded materials are difficult to recycle is solved; the particle diameters of the raw materials are below 1200 meshes to enable the raw materials to be better mixed with a foaming agent and a blowing promoter, so that the final foamed ceramics product uniformly foams, and the volume weight of the final foamed ceramics product is reduced; the particle diameter of a ceramic blank in the step (2) is 20-30 meshes, so that uniform material distribution of a material distribution machine and uniform oxidation are facilitated, and the foamed ceramics which foam uniformly, and is high in hardness and low in volume weight can be further obtained.
Description
Technical field
The present invention relates to high performance structure ceramic production field, particularly a kind of production technique of foamed ceramics.
Background technology
Existing foamed ceramics mainly adopts urethane foam to immerse in the ceramic size of suitably composition and bull degree, make the suitable ceramic mud of porous plastics uniform adsorption, drying again in ceramic preparation technique, firing process, thus the foamed ceramics obtaining corner eye.Foamed ceramics unit weight prepared by the method is low, and intensity is also higher, but raw material is high-quality ceramic slurry, and production cost is higher.Meanwhile, present building waste and building rejected material Chang Zuowei refuse treatment, occupy a large amount of land resources.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of production technique of foamed ceramics, building waste and building rejected material can be used to produce have excellent flame retardant resistance, water-intake rate low and the foamed ceramics that unit weight is low.
The production technique of foamed ceramics of the present invention, comprises the following steps:
(1) primary comminution
Raw material be building waste or building rejected material, by raw material pulverizing to particle diameter below 1200 orders, sieve;
(2) separating twice
By the raw material of particle diameter below 1200 orders and frothing aid and whipping agent according to 65-85: 10-20: 5-15 proportioning mix, by ball mill grinding, obtained ceramic powder;
(3) granulation is dried
The ceramic powder that will be obtained by step (2) uses Drying Bed to dry, and then use granulator granulation, particle diameter is 20-30 order, obtained ceramic batch;
(4) oxidation and foaming
The ceramic batch obtained by step (3) is entered to be oxidized kiln by material distributing machine cloth, through 500-900 DEG C of oxidation 60-90 minute, then proceeds to calcining kiln and fire foaming in 90-120 minute through 1170-1200 DEG C, obtained foamed ceramic product;
(5) anneal shaping
The foamed ceramic product obtained by step (4) is proceeded to annealing furnace annealing, annealing process temperature is down to room temperature by 1200 degree, anneal shaping after, by the foamed ceramic finished product obtained cut packaging dispatch from the factory.
Further, the mixing match of described step (2) Raw and frothing aid and whipping agent is 73: 15: 12.
Further, described foaming agent foam auxiliary agent is mixed by aluminium aluminite mineral powder and calcium carbonate.
Further, described building waste and building rejected material are at least one in engineering body refuse, rubble, waste ceramic, cullet and waste and old concrete.
Further, described raw material pulverizing mode is jaw crushing.
Compared with prior art, the invention has the beneficial effects as follows: use building waste and building rejected material to be raw material, produce and there is the low and foamed ceramics that unit weight is low of excellent flame retardant resistance, water-intake rate, the flame retardant properties of traditional foamed ceramic is promoted to present A level does not fire by B level is fire-retardant, water-intake rate is down to less than 0.3%, not only considerably reduce production cost, and solution building waste is difficult to a difficult problem for recycling with building rejected material; The particle diameter of raw material is to better mix with whipping agent and frothing aid below 1200 orders, makes the foamed ceramic finished product uniform in foaming finally obtained, thus lowers the unit weight of foamed ceramic finished product; The particle diameter of the ceramic batch in step (2) is 20-30 order, is conducive to material distributing machine cloth even, is conducive to oxidation evenly, and then obtains uniform in foaming, the bubble ceramic product that hardness is high, unit weight is low.
Embodiment
Below in conjunction with embodiment, the present invention is further described.
The production technique of foamed ceramics of the present invention, comprises the following steps:
(1) primary comminution
Raw materials used is building waste or building rejected material, building waste and building rejected material are at least one in engineering body refuse, rubble, waste ceramic, cullet and waste and old concrete, raw material is crushed to particle diameter below 1200 orders by the mode of jaw crushing, sieves;
(2) separating twice
By the raw material of particle diameter below 1200 orders and frothing aid and whipping agent according to 65-85: 10-20: 5-15 proportioning mix, by ball mill grinding, obtained ceramic powder;
(3) granulation is dried
The ceramic powder that will be obtained by step (2) uses Drying Bed to dry, and then use granulator granulation, particle diameter is 20-30 order, obtained ceramic batch;
(4) oxidation and foaming
The ceramic batch obtained by step (3) is entered to be oxidized kiln by material distributing machine cloth, through 500-900 DEG C of oxidation 60min or 90min, then proceeds to calcining kiln and fire 90min or 120min foaming through 1170-1200 DEG C, obtained foamed ceramic product;
(5) anneal shaping
The foamed ceramic product obtained by step (4) is proceeded to annealing furnace annealing, annealing process temperature is down to room temperature by 1200 degree, anneal shaping after, by the foamed ceramic finished product obtained cut packaging dispatch from the factory.
The mixing match of described step (2) Raw and frothing aid and whipping agent is 73: 15: 12, and frothing aid is mixed by aluminium aluminite mineral powder and calcium carbonate.Owing to there is a large amount of sodium salts and sylvite in building waste and building rejected material, the density that whipping agent is foamed in foaming process and size are not easy to control, and adding containing aluminium calcium salt frothing aid, serve foaming skeleton effect, make the Air Bubble Size in foamed ceramic product homogeneous, be evenly distributed.
The present invention, uses building waste and building rejected material to be raw material, and produce and have the low and foamed ceramics that unit weight is low of excellent flame retardant resistance, water-intake rate, the unit weight of traditional foamed ceramic is 260kg/m
3, the unit weight of the foamed ceramic of this explained hereafter is 110-130kg/m
3, the flame retardant properties of traditional foamed ceramic is promoted to present A level does not fire by B level is fire-retardant, and water-intake rate is down to less than 0.3%, not only considerably reduces production cost, and solves the difficult problem that building waste and building rejected material be difficult to recycle; The particle diameter of raw material is to better mix with whipping agent and frothing aid below 1200 orders, makes the foamed ceramic finished product uniform in foaming finally obtained, thus lowers the unit weight of foamed ceramic finished product; The particle diameter of the ceramic batch in step (2) is 20-30 order, is conducive to material distributing machine cloth even, is conducive to oxidation evenly, and then obtains uniform in foaming, the foamed ceramic finished product that hardness is high, unit weight is low.
Comprise the above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (5)
1. a production technique for foamed ceramics, is characterized in that, comprises the following steps:
(1) raw material pulverizing
Raw material be building waste or building rejected material, by raw material pulverizing to particle diameter below 1200 orders, sieve;
(2) batch mixing grinding
By the raw material of particle diameter below 1200 orders and frothing aid and whipping agent according to 65-85: 10-20: 5-15 proportioning mix, by ball mill grinding, obtained ceramic powder;
(3) granulation is dried
The ceramic powder that will be obtained by step (2) uses Drying Bed to dry, and then use granulator granulation, particle diameter is 20-30 order, obtained ceramic batch;
(4) oxidation and foaming
The ceramic batch obtained by step (3) is entered to be oxidized kiln by material distributing machine cloth, through 500-900 DEG C of oxidation 60-90 minute, then proceeds to calcining kiln and fire foaming in 90-120 minute through 1170-1200 DEG C, obtained foamed ceramic product;
(5) anneal shaping
The foamed ceramic product obtained by step (4) is proceeded to annealing furnace annealing, annealing process temperature is down to room temperature by 1200 degree, anneal shaping after, by the foamed ceramic finished product obtained cut packaging dispatch from the factory.
2. the production technique of foamed ceramics according to claim 1, is characterized in that: the mixing match of described step (2) Raw and frothing aid and whipping agent is 73: 15: 12.
3. the production technique of foamed ceramics according to claim 1, is characterized in that: described foaming agent foam auxiliary agent is mixed by aluminium aluminite mineral powder and calcium carbonate.
4. the production technique of foamed ceramics according to claim 1, is characterized in that: described building waste and building rejected material are at least one in engineering body refuse, rubble, waste ceramic, cullet and waste and old concrete.
5. the production technique of foamed ceramics according to claim 1, is characterized in that: described raw material pulverizing mode is jaw crushing.
Priority Applications (1)
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| CN201510039516.1A CN104609888A (en) | 2015-01-27 | 2015-01-27 | Production process of foamed ceramics |
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| CN201510039516.1A CN104609888A (en) | 2015-01-27 | 2015-01-27 | Production process of foamed ceramics |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108129131A (en) * | 2017-12-15 | 2018-06-08 | 华南理工大学 | A kind of low temperature preparation method of lightweight heat-proof ceramics |
| CN109181330A (en) * | 2018-10-09 | 2019-01-11 | 山东高速路用新材料技术有限公司 | A kind of road asphalt fire retardant and its preparation method and application |
| CN109251013A (en) * | 2018-10-29 | 2019-01-22 | 长沙浩然医疗科技有限公司 | A kind of production technology of foamed ceramics |
| CN109721334A (en) * | 2019-02-27 | 2019-05-07 | 北京科技大学 | A method of foamed ceramics is prepared using inorganic building waste |
| CN110317067A (en) * | 2019-07-19 | 2019-10-11 | 广东金意陶陶瓷集团有限公司 | Foaming agent and its preparation method and application, foamed ceramic wallboard powder and preparation method thereof |
| CN110963784A (en) * | 2019-12-31 | 2020-04-07 | 郑州登电科诚新材料有限公司 | Production process for recycling cutting waste of foamed ceramic insulation board |
| CN111039693A (en) * | 2019-12-31 | 2020-04-21 | 郑州登电科诚新材料有限公司 | Production process of ceramic fiber paper recycled foamed ceramic insulation board |
| CN111039611A (en) * | 2019-12-31 | 2020-04-21 | 广东恩硕建设工程有限公司 | Ceramic powder foam lightweight concrete and preparation method thereof |
| CN113787589A (en) * | 2021-10-08 | 2021-12-14 | 佛山市雅博陶瓷发展有限公司 | Preparation device and method for foamed ceramic plate |
| CN113800947A (en) * | 2021-11-02 | 2021-12-17 | 曹群杰 | Manufacturing process of inorganic hydrophobic insulation board |
| CN113999040A (en) * | 2021-11-16 | 2022-02-01 | 潮州华丰集团股份有限公司 | High-strength foamed ceramic and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830728A (en) * | 2010-05-26 | 2010-09-15 | 浙江大学 | Method for producing foamed ceramics by using ceramic waste |
| CN102219548A (en) * | 2011-04-13 | 2011-10-19 | 泉州欧米克生态建材科技有限公司 | Environment-friendly lightweight ceramic tile foaming agent and preparation method thereof |
| CN103626516A (en) * | 2013-12-16 | 2014-03-12 | 淮南师范学院 | Preparation method of lightweight foam heat-preservation material and product prepared from lightweight foam heat-preservation material |
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2015
- 2015-01-27 CN CN201510039516.1A patent/CN104609888A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830728A (en) * | 2010-05-26 | 2010-09-15 | 浙江大学 | Method for producing foamed ceramics by using ceramic waste |
| CN102219548A (en) * | 2011-04-13 | 2011-10-19 | 泉州欧米克生态建材科技有限公司 | Environment-friendly lightweight ceramic tile foaming agent and preparation method thereof |
| CN103626516A (en) * | 2013-12-16 | 2014-03-12 | 淮南师范学院 | Preparation method of lightweight foam heat-preservation material and product prepared from lightweight foam heat-preservation material |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108129131A (en) * | 2017-12-15 | 2018-06-08 | 华南理工大学 | A kind of low temperature preparation method of lightweight heat-proof ceramics |
| CN109181330B (en) * | 2018-10-09 | 2021-04-27 | 同济大学 | Asphalt flame retardant for roads and preparation method and application thereof |
| CN109181330A (en) * | 2018-10-09 | 2019-01-11 | 山东高速路用新材料技术有限公司 | A kind of road asphalt fire retardant and its preparation method and application |
| CN109251013A (en) * | 2018-10-29 | 2019-01-22 | 长沙浩然医疗科技有限公司 | A kind of production technology of foamed ceramics |
| CN109721334A (en) * | 2019-02-27 | 2019-05-07 | 北京科技大学 | A method of foamed ceramics is prepared using inorganic building waste |
| CN110317067A (en) * | 2019-07-19 | 2019-10-11 | 广东金意陶陶瓷集团有限公司 | Foaming agent and its preparation method and application, foamed ceramic wallboard powder and preparation method thereof |
| CN110317067B (en) * | 2019-07-19 | 2022-07-05 | 广东金意陶陶瓷集团有限公司 | Foaming agent composition, preparation method and application thereof, foamed ceramic wallboard powder and preparation method thereof |
| CN111039693A (en) * | 2019-12-31 | 2020-04-21 | 郑州登电科诚新材料有限公司 | Production process of ceramic fiber paper recycled foamed ceramic insulation board |
| CN111039611A (en) * | 2019-12-31 | 2020-04-21 | 广东恩硕建设工程有限公司 | Ceramic powder foam lightweight concrete and preparation method thereof |
| CN110963784A (en) * | 2019-12-31 | 2020-04-07 | 郑州登电科诚新材料有限公司 | Production process for recycling cutting waste of foamed ceramic insulation board |
| CN113787589A (en) * | 2021-10-08 | 2021-12-14 | 佛山市雅博陶瓷发展有限公司 | Preparation device and method for foamed ceramic plate |
| CN113787589B (en) * | 2021-10-08 | 2022-11-22 | 佛山市雅博陶瓷发展有限公司 | Preparation device and method for foamed ceramic plate |
| CN113800947A (en) * | 2021-11-02 | 2021-12-17 | 曹群杰 | Manufacturing process of inorganic hydrophobic insulation board |
| CN113999040A (en) * | 2021-11-16 | 2022-02-01 | 潮州华丰集团股份有限公司 | High-strength foamed ceramic and preparation method thereof |
| CN113999040B (en) * | 2021-11-16 | 2023-02-03 | 潮州华丰集团股份有限公司 | High-strength foamed ceramic and preparation method thereof |
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