CN104291859B - Energy storage baking-free sludge haydite and preparation method thereof - Google Patents
Energy storage baking-free sludge haydite and preparation method thereof Download PDFInfo
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- CN104291859B CN104291859B CN201410537907.1A CN201410537907A CN104291859B CN 104291859 B CN104291859 B CN 104291859B CN 201410537907 A CN201410537907 A CN 201410537907A CN 104291859 B CN104291859 B CN 104291859B
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Abstract
The present invention relates to a kind of energy storage baking-free sludge haydite, described energy storage baking-free sludge haydite is carried out mixing by phase-changing energy storage material, porous material exciting agent and mud powder body by certain mass ratio and forms; Wherein, it is 20%-60% that the mass ratio of each component is respectively as follows: phase-changing energy storage material, mud powder body 30%-50%, porous material 10%-30%, exciting agent 10%-30%, and the mass ratio summation of above each component is 100%. The preparation method that the invention still further relates to a kind of energy storage baking-free sludge haydite. Described energy storage baking-free sludge haydite intensity is high, density is little, phase-changing energy storage material adsorbance is big, preparation energy consumption is low, has wide promotion prospect in sludge treatment field.
Description
Technical field
The present invention relates to a kind of energy storage baking-free sludge haydite and preparation method thereof, for sludge treatment in engineering.
Background technology
According to statistics, the discharge capacity of the annual lake of China, river course and urban sewer mud is up to up to more than 100,000,000 tons, if can not get effective process, causing serious environmental problem. At present, one of major way processing mud is to produce fired brick and haydite with it. But the complicated process of preparation of sintering ceramsite, energy consumption are high, production process also can produce substantial amounts of greenhouse gases. The advantage that the production technology of baking-free ceramicite is simple, cost is low, energy consumption is low, has wide promotion prospect.
Meanwhile, because the light porous characteristic of haydite, it is again the carrier of energy storage material excellent in phase-change accumulation energy materials for wall. The haydite internal porosity of high-temperature roasting mostly is enclosed type, and outer surface is one layer of rigid shell in ceramic or enamel, and the adsorbance of phase-change material is relatively low, under vacuum condition, the adsorption rate of phase-change material is only about 20%. There is the shortcoming that density is big, porosity is low in baking-free ceramicite, limits the haydite application at phase-changing energy storage material carrier.
Therefore, this patent is intended to invent the unburned energy storage mud ceramic granules that a kind of technique is simple, energy consumption is low, energy storage material adsorbance is big, can significantly reduce fire mud energy consumption, improve haydite to the adsorption rate of energy storage material, simplify operating procedure, the development of Energy Saving Technique for Buildings in Our Country is had positive effect.
Summary of the invention
It is an object of the invention to overcome the defect of prior art, provide a kind of energy storage baking-free sludge haydite and preparation method thereof, energy storage baking-free sludge haydite intensity that it is prepared is high, density is little, phase-changing energy storage material adsorbance is big, preparation technology is simple, one-shot forming, energy consumption are low, has wide promotion prospect in sludge treatment field.
The present invention is achieved in that
The present invention provides a kind of energy storage baking-free sludge haydite, and described energy storage baking-free sludge haydite is carried out mixing by phase-changing energy storage material, porous material exciting agent and mud powder body by certain mass ratio and forms;Wherein, it is 20%-60% that the mass ratio of each component is respectively as follows: phase-changing energy storage material, mud powder body 30%-50%, porous material 10%-30%, exciting agent 10%-30%, and the mass ratio summation of above each component is 100%.
Further, described phase-changing energy storage material is paraffin or stearic acid.
Further, described phase-changing energy storage material is in granular form or powder body.
Further, described porous material is any one or any several combination in expanded perlite, zeolite powder, rice hull ash, granules of polystyrene.
Further, described exciting agent is any one or any several combination in calcium oxide, Gypsum Fibrosum, sodium hydroxide, cement.
The preparation method that the present invention also provides for a kind of energy storage baking-free sludge haydite, comprises the following steps: step one: be dried by mud, and carries out grinding, forms mud powder body; Step 2: phase-changing energy storage material, porous material and exciting agent are mixed by certain mass ratio with mud powder body, form mixture, wherein, it is 20%-60% that the mass ratio of each component is respectively as follows: phase-changing energy storage material, mud powder body 30%-50%, porous material 10%-30%, exciting agent 10%-30%, the mass ratio summation of above each component is 100%; Step 3: undertaken adding water pelletize by mixture, and the temperature more than described melting point of phase change energy storage material carries out steam curing, steam curing maintains 24-48 hour; Step 4: said mixture is at room temperature carried out maintenance, and forms energy storage baking-free sludge haydite.
Further, the granularity of described mud powder body is less than 0.08mm.
Further, described steam-cured temperature is 60-80 DEG C.
The method have the advantages that
1, adopting mud, exciting agent to prepare energy storage baking-free sludge haydite, technique is simple, energy consumption is low.
2, in energy storage baking-free sludge haydite preparation process, mix phase-changing energy storage material, be greatly improved in energy storage baking-free sludge haydite the content of phase-change material, reduce the density of energy storage baking-free sludge haydite simultaneously.
3, one-time process, namely prepares phase-change accumulation energy baking-free sludge haydite, simplifies production technology.
4, porous material is mixed, it is possible to decrease the density of energy storage baking-free sludge haydite, the heat-insulating property of energy storage baking-free sludge haydite of improving; Meanwhile, in described phase-changing energy storage material phase transition process, phase-changing energy storage material volume can become big, and porous material can receive part phase-changing energy storage material, it is to avoid energy storage baking-free sludge haydite is damaged by the increase of phase-changing energy storage material volume.
Detailed description of the invention
Below the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of protection of the invention.
The embodiment of the present invention provides a kind of energy storage baking-free sludge haydite and preparation method thereof, and described energy storage baking-free sludge haydite is carried out mixing by phase-changing energy storage material, porous material exciting agent and mud powder body by certain mass ratio and forms; Wherein, it is 20%-60% that the mass ratio of each component is respectively as follows: phase-changing energy storage material, mud powder body 30%-50%, porous material 10%-30%, exciting agent 10%-30%, and the mass ratio summation of above each component is 100%.
The preparation method of described energy storage baking-free sludge haydite comprises the following steps:
Step one: mud is dried, and carry out grinding, form mud powder body, in this preferred embodiment, the granularity of described mud powder body is less than 0.08mm.
Step 2: phase-changing energy storage material, porous material and exciting agent are mixed by certain mass ratio with mud powder body, forms mixture. Wherein, it is 20%-60% that the mass ratio of each component is respectively as follows: phase-changing energy storage material, mud powder body 30%-50%, porous material 10%-30%, exciting agent 10%-30%, and the mass ratio summation of above each component is 100%. The mass ratio of above-mentioned each component is the scope using the mass ratio shared by this component, in real process, the mass ratio value of each component is different according to practical situation, it is only necessary to meeting the final mass ratio sum obtained is 100%.
Step 3: undertaken adding water pelletize by mixture, and the temperature more than described melting point of phase change energy storage material carries out steam curing, steam curing maintains 24-48 hour. In this preferred embodiment, described steam-cured temperature is 60-80 DEG C, and certainly, this temperature mainly is undertaken determining by the fusing point of the phase-changing energy storage material selected. In this preferred embodiment, described phase-changing energy storage material is paraffin or stearic acid, and what described phase-changing energy storage material presented is formed as graininess or powder body, therefore, selects steam-cured temperature to be 60-80 DEG C and can meet demand completely. In other embodiments, it is possible to select different phase-changing energy storage materials, so that steam-cured temperature also different.
Step 4: said mixture at room temperature carries out maintenance, after maintenance 14 days, forms energy storage baking-free sludge haydite.
Wherein, in this preferred embodiment, described porous material is any one or any several combination in expanded perlite, zeolite powder, rice hull ash, granules of polystyrene, mixes porous material, it is possible to decrease the density of energy storage baking-free sludge haydite, the heat-insulating property of energy storage baking-free sludge haydite of improving; Meanwhile, in described phase-changing energy storage material phase transition process, phase-changing energy storage material volume can become big, and porous material can receive part phase-changing energy storage material, it is to avoid energy storage baking-free sludge haydite is damaged by the increase of phase-changing energy storage material volume. Described exciting agent is any one or any several combination in calcium oxide, Gypsum Fibrosum, sodium hydroxide, cement.
Energy storage baking-free sludge haydite that the embodiment of the present invention provides and preparation method thereof has the advantages that
1, adopting mud, exciting agent to prepare energy storage baking-free sludge haydite, technique is simple, energy consumption is low.
2, in energy storage baking-free sludge haydite preparation process, mix phase-changing energy storage material, be greatly improved in energy storage baking-free sludge haydite the content of phase-change material, reduce the density of energy storage baking-free sludge haydite simultaneously.
3, one-time process, namely prepares phase-change accumulation energy baking-free sludge haydite, simplifies production technology.
4, porous material is mixed, it is possible to decrease the density of energy storage baking-free sludge haydite, the heat-insulating property of energy storage baking-free sludge haydite of improving; Meanwhile, in described phase-changing energy storage material phase transition process, phase-changing energy storage material volume can become big, and porous material can receive part phase-changing energy storage material, it is to avoid energy storage baking-free sludge haydite is damaged by the increase of phase-changing energy storage material volume.
5, in steam curing process, described phase-changing energy storage material melts and fills the hole of energy storage baking-free sludge haydite, greatly reduce the water absorption rate of energy storage baking-free sludge haydite, reduce or eliminate energy storage baking-free sludge haydite and mix after concrete the impact on the reinforcement of concrete water yield, workability.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (7)
1. an energy storage baking-free sludge haydite, it is characterised in that described energy storage baking-free sludge haydite is carried out mixing by phase-changing energy storage material, porous material, exciting agent and mud powder body by certain mass ratio and forms;
Wherein, it is 20%-60% that the mass ratio of each component is respectively as follows: phase-changing energy storage material, mud powder body 30%-50%, porous material 10%-30%, exciting agent 10%-30%, the mass ratio summation of above each component is 100%, and described phase-changing energy storage material is in granular form or powder body.
2. energy storage baking-free sludge haydite as claimed in claim 1, it is characterised in that: described phase-changing energy storage material is paraffin or stearic acid.
3. energy storage baking-free sludge haydite as claimed in claim 1, it is characterised in that: described porous material is any one or any several combination in expanded perlite, zeolite powder, rice hull ash, granules of polystyrene.
4. energy storage baking-free sludge haydite as claimed in claim 1, it is characterised in that: described exciting agent is any one or any several combination in calcium oxide, Gypsum Fibrosum, sodium hydroxide, cement.
5. the preparation method of the energy storage baking-free sludge haydite as described in any one of claim 1-4, it is characterised in that comprise the following steps:
Step one: mud is dried, and carry out grinding, form mud powder body;
Step 2: phase-changing energy storage material, porous material and exciting agent are mixed by certain mass ratio with mud powder body, form mixture, wherein, it is 20%-60% that the mass ratio of each component is respectively as follows: phase-changing energy storage material, mud powder body 30%-50%, porous material 10%-30%, exciting agent 10%-30%, the mass ratio summation of above each component is 100%;
Step 3: undertaken adding water pelletize by mixture, and the temperature more than described melting point of phase change energy storage material carries out steam curing, steam curing maintains 24-48 hour;
Step 4: said mixture is at room temperature carried out maintenance, and forms energy storage baking-free sludge haydite.
6. preparation method as claimed in claim 5, it is characterised in that: the granularity of described mud powder body is less than 0.08mm.
7. preparation method as claimed in claim 5, it is characterised in that: described steam-cured temperature is 60-80 DEG C.
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| CN201410537907.1A CN104291859B (en) | 2014-10-14 | 2014-10-14 | Energy storage baking-free sludge haydite and preparation method thereof |
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| CN201410537907.1A CN104291859B (en) | 2014-10-14 | 2014-10-14 | Energy storage baking-free sludge haydite and preparation method thereof |
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| CN104291859B true CN104291859B (en) | 2016-06-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105060832B (en) * | 2015-08-20 | 2017-06-06 | 刘欣萌 | A kind of zeolite ceramsite for roof greening and preparation method thereof |
| CN107721358B (en) * | 2017-10-23 | 2021-06-04 | 上海大学 | Baking-free ceramsite prepared by mixing slag micro powder with perlite tailings and preparation method of baking-free ceramsite |
| CN108373314A (en) * | 2018-03-30 | 2018-08-07 | 胡建农 | Phasochange energy storage ceramic particle and preparation method thereof |
| CN111018569A (en) * | 2019-12-17 | 2020-04-17 | 佛山科学技术学院 | Composite phase-change external wall brick |
| CN111171793B (en) * | 2020-01-06 | 2021-10-15 | 西安建筑科技大学 | Inorganic heat-storage unfired ceramsite and preparation method thereof |
| CN114516747B (en) * | 2022-03-10 | 2022-10-04 | 湖南锦佳环保科技有限公司 | Method for preparing building material from shield sludge without baking |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3926649A1 (en) * | 1989-08-11 | 1991-02-14 | Riedel Rudolf | Ceramic material prodn. from sediments - esp. silt and sludge contg. water and combustible (non-)volatile matter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0578161A (en) * | 1985-10-24 | 1993-03-30 | Fujimi Ceramic Kk | Treatment of sewage sludge |
| CN102503516B (en) * | 2011-11-10 | 2013-04-17 | 许庆华 | Irregularly-shaped sintering-free attapulgite river sediment ceramsite |
| CN102531550B (en) * | 2011-12-22 | 2013-04-24 | 山东大学 | Poly fatty acid shape-stabilized phase change material and preparation method thereof |
| CN103145442B (en) * | 2013-03-28 | 2014-07-16 | 南京工业大学 | Method for preparing non-sintered ceramisites by using chemical sludge |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3926649A1 (en) * | 1989-08-11 | 1991-02-14 | Riedel Rudolf | Ceramic material prodn. from sediments - esp. silt and sludge contg. water and combustible (non-)volatile matter |
Non-Patent Citations (1)
| Title |
|---|
| 淤泥烧胀陶粒制备工艺;刘红梅等;《新型建筑材料》;20111030(第10期);74-76,78 * |
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