CN104355597A - Low-density moderate-strength ceramsite and preparation method thereof - Google Patents
Low-density moderate-strength ceramsite and preparation method thereof Download PDFInfo
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- CN104355597A CN104355597A CN201410515026.XA CN201410515026A CN104355597A CN 104355597 A CN104355597 A CN 104355597A CN 201410515026 A CN201410515026 A CN 201410515026A CN 104355597 A CN104355597 A CN 104355597A
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Abstract
The invention discloses a low-density moderate-strength ceramsite and a preparation method thereof. The ceramsite is prepared from the following raw materials by mass percentage: 45-68% of lightly calcined bauxite, 20-35% of lightly calcined clay and 10-25% of green clay. The ceramsite is low in ceramsite density, high in anti-crushing capability, low in cost and simple in formula.
Description
Technical field
The present invention relates to petroleum propping agent technical field, particularly relate to strong haydite and preparation method thereof in a kind of low density.
Background technology
During oil and gas deep mining, often carry out fracture treatment, Oil gas-containing rock layer is split, oil gas collects from the passage of cracking initiation.Enter Filling with petroleum propping agent in rock crack in company with fracturing liquid, play and support crack not stress release and closed effect, thus keep high flow conductivity, make oil gas unimpeded, increase yield.
At present conventional petroleum propping agent mainly contain low close in strong haydite and in close in strong haydite to be applicable to different depths and to match from different fracturing liquids.Existing explained hereafter low close in the aluminium content of raw material of strong haydite need more than 72%, impacts comparatively greatly with refractory materials, and raw materials cost is higher.In addition, due to prepare in prior art low close in the aluminium content of main raw material of strong haydite high, in order to reduce the volume density of ceramsite sand, have to add various auxiliary material, formula is complicated, and the acid solubility of product is higher simultaneously.
Summary of the invention
In view of this, the embodiment of the present invention provides strong haydite and preparation method thereof in a kind of low density, and it is low that main purpose is to provide a kind of cost, is easy to strong haydite in the low density prepared.
For achieving the above object, the present invention mainly provides following technical scheme:
On the one hand, embodiments provide strong haydite in a kind of low density, its raw material is made up of by mass percentage following component:
Light-burned bauxitic clay 45 ~ 68%
Light-burned clay 20 ~ 35%
Raw clay 10 ~ 25%.
As preferably, in described low density, the raw material of strong haydite is made up of by mass percentage following component:
Light-burned bauxitic clay 55%
Light-burned clay 25%
Raw clay 20%.
As preferably, in described light-burned bauxitic clay, the mass percentage of aluminium is 46 ~ 60%.
As preferably, in described light-burned clay, the mass percentage of aluminium is 44 ~ 48%.
On the other hand, embodiments provide the preparation method of strong haydite in a kind of any one low density above-mentioned, comprise the steps:
After being prepared in proportion by raw material, powder fineness is made to reach 600 order percent of pass more than 90% through ball mill grinding;
After granulation, at 150-220 DEG C, dry to obtain haydite work in-process;
Screening obtains qualified haydite work in-process, fires the haydite obtaining finished product under 1380-1420 DEG C of high temperature.
As preferably, the haydite of the described finished product obtained meets 20/40 object volume density and is not less than 1.55g/cm
3, volume density is not more than 2.9,52MPa percentage of damage and is not more than 9%, and acid solubility is not more than 5%.
The present invention compared with prior art tool has the following advantages:
In a kind of low density that the embodiment of the present invention proposes, strong haydite and preparation method thereof adopts the low aluminium " scrap stock " during bauxitic clay mining as the main raw material preparing strong haydite in low density, raw materials cost is low, be easy to obtain, introduce light-burned bauxitic clay simultaneously, reduce firing temperature, and without the need to adding too much auxiliary material, formula is simple, is easy to preparation.Adopt this kind of raw material to prepare the technique of haydite simply, production cost is low, easy to implement, can produce in a large number.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, but not as a limitation of the invention.
Embodiment 1
Strong haydite in low density, its raw material is composed as follows:
Light-burned bauxitic clay (mass percentage of aluminium is 56.7%) 1650g, light-burned clay (mass percentage of aluminium is 48.8%) 750g, raw clay 600g.
Preparation process is as follows:
After being prepared in proportion by raw material, powder fineness is made to reach 600 order percent of pass more than 90% through ball mill grinding;
After granulation, at 150 DEG C, dry to obtain haydite work in-process;
Sieve qualified haydite work in-process, under 1380 DEG C of high temperature, fire the haydite obtaining finished product.
The haydite 20/40 object volume density of the finished product obtained is 1.54g/cm
3, volume density is 2.77,52MPa percentage of damage is 7.2%, and acid solubility is 4.89%.Embodiment 2
Strong haydite in low density, its raw material is composed as follows:
Light-burned bauxitic clay (mass percentage of aluminium is 57.3%) 1590g, light-burned clay (mass percentage of aluminium is 48.8%) 750g, raw clay 660g.
Preparation process is as follows:
After being prepared in proportion by raw material, powder fineness is made to reach 600 order percent of pass more than 90% through ball mill grinding;
After granulation, at 180 DEG C, dry to obtain haydite work in-process;
Screening obtains qualified haydite work in-process, fires the haydite obtaining finished product under 1420 DEG C of high temperature.
The haydite 20/40 object volume density of the finished product obtained is 1.53g/cm
3, volume density is 2.72,52MPa percentage of damage is 7.02%, and acid solubility is 4.52%.
Embodiment 3
Strong haydite in low density, its raw material is composed as follows:
Light-burned bauxitic clay (mass percentage of aluminium is 58.2%) 1800g, light-burned clay (mass percentage of aluminium is 48.8%) 900g, raw clay 300g.
Preparation process is as follows:
After being prepared in proportion by raw material, powder fineness is made to reach 600 order percent of pass more than 90% through ball mill grinding;
After granulation, at 220 DEG C, dry to obtain haydite work in-process;
Screening obtains qualified haydite work in-process, fires the haydite obtaining finished product under 1400 DEG C of high temperature.
The haydite 20/40 object volume density of the finished product obtained is 1.54g/cm
3, volume density is 2.79,52MPa percentage of damage is 5.08%, and acid solubility is 4.84%.
The raw material of the haydite of the embodiment of the present invention adopts light-burned bauxitic clay, and " loss on ignition " (LOI) controlling bauxitic clay, between 0 ~ 1%, is not only conducive to granulation but also be conducive to burning till.Adopt and can control " loss on ignition " i.e. LOI equally, especially adopt the light-burned clay soils of Flos Bombacis Malabarici better.Utilize raw material self Fe2O3, TiO2 content high, the mullite in acceleration of sintering generates and reduces firing temperature simultaneously.The raw clay associativity introduced is good, is conducive to work in-process balling-up easy grinding, the low easy-sintering of cost.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Claims (6)
1. strong haydite in low density, it is characterized in that, its raw material is made up of by mass percentage following component:
Light-burned bauxitic clay 45 ~ 68%
Light-burned clay 20 ~ 35%
Raw clay 10 ~ 25%.
2. strong haydite in low density according to claim 1, it is characterized in that, its raw material described is made up of by mass percentage following component:
Light-burned bauxitic clay 55%
Light-burned clay 25%
Raw clay 20%.
3. strong haydite in low density according to claim 1, it is characterized in that, in described light-burned bauxitic clay, the mass percentage of aluminium is 46 ~ 60%.
4. strong haydite in low density according to claim 1, it is characterized in that, in described light-burned clay, the mass percentage of aluminium is 44 ~ 48%.
5. in the low density described in any one of claim 1-4, the preparation method of strong haydite, is characterized in that, comprise the steps:
After being prepared in proportion by raw material, powder fineness is made to reach 600 order percent of pass more than 90% through ball mill grinding;
After granulation, at 150-220 DEG C, dry to obtain haydite work in-process;
Screening obtains qualified haydite work in-process, fires the haydite obtaining finished product under 1380-1420 DEG C of high temperature.
6. the preparation method of strong haydite in low density according to claim 5, is characterized in that, the haydite of the described finished product obtained meets 20/40 object volume density and is not more than 1.55g/cm
3, volume density is not more than 2.9,52MPa percentage of damage and is not more than 9%, and acid solubility is not more than 5%.
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| CN201410515026.XA CN104355597A (en) | 2014-09-29 | 2014-09-29 | Low-density moderate-strength ceramsite and preparation method thereof |
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| CN201410515026.XA CN104355597A (en) | 2014-09-29 | 2014-09-29 | Low-density moderate-strength ceramsite and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311674A (en) * | 2017-07-05 | 2017-11-03 | 宝鸡华光铸造材料科技有限公司 | One kind casting extraordinary pouring channel tube and preparation method thereof |
| CN107473712A (en) * | 2017-09-25 | 2017-12-15 | 贵州开磷磷石膏综合利用有限公司 | A kind of ardealite leca and preparation method thereof |
| CN115448694A (en) * | 2022-09-30 | 2022-12-09 | 鸿生再生资源(福州)有限公司 | Improved powdery clay sintered ceramsite and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838530A (en) * | 2010-04-30 | 2010-09-22 | 郑州德赛尔陶粒有限公司 | Low-density high-strength ceramic granule propping agent and preparation method thereof |
-
2014
- 2014-09-29 CN CN201410515026.XA patent/CN104355597A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838530A (en) * | 2010-04-30 | 2010-09-22 | 郑州德赛尔陶粒有限公司 | Low-density high-strength ceramic granule propping agent and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311674A (en) * | 2017-07-05 | 2017-11-03 | 宝鸡华光铸造材料科技有限公司 | One kind casting extraordinary pouring channel tube and preparation method thereof |
| CN107473712A (en) * | 2017-09-25 | 2017-12-15 | 贵州开磷磷石膏综合利用有限公司 | A kind of ardealite leca and preparation method thereof |
| CN107473712B (en) * | 2017-09-25 | 2020-06-26 | 贵州开磷磷石膏综合利用有限公司 | Phosphogypsum clay ceramsite and preparation method thereof |
| CN115448694A (en) * | 2022-09-30 | 2022-12-09 | 鸿生再生资源(福州)有限公司 | Improved powdery clay sintered ceramsite and preparation method thereof |
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Application publication date: 20150218 |
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