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Standard coarse quartz sand for aero-engine sand swallowing experiment and its preparation method and application

An aero-engine and coarse sand technology, which is used in engine testing, machine/structural component testing, silicon dioxide, etc., and can solve problems such as dependence and lack of independent intellectual property rights to test sand and dust products.

Active Publication Date: 2020-11-13
北京辰融科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the late development of basic research work, my country's standard sand dust and related standards have always relied on imports, while the existing domestic sand-making enterprises are mainly oriented to industries such as building materials and monocrystalline silicon preparation, and have not formed my country's independent intellectual property rights. Test sand and dust products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment is an exemplary coarse sand for aero-engine sand swallowing experiment and its preparation.

[0036] The concrete preparation process of the coarse sand of the present embodiment comprises:

[0037] The first step, beneficiation: screen the raw ore. The main components of the raw ore are silicon dioxide, aluminum oxide, ferric oxide / ferric oxide, calcium oxide, potassium oxide, sodium oxide, and magnesium oxide. The mass percentages of the ingredients are: silicon dioxide 55%, aluminum oxide 15%, ferric oxide and ferric oxide 9%, calcium oxide 8%, potassium oxide 6%, sodium oxide 6%, magnesium oxide 1 %;

[0038] The second step, water washing: use tap water to wash the required component ore obtained in the first step to remove impurities, dirt and attachments on the surface of the ore;

[0039] The third step is to remove water: dry the washed ore naturally for 2 hours to remove the water on the surface of the ore;

[0040] The fourth step, crushing...

Embodiment 2

[0046] This embodiment is an exemplary coarse sand for aero-engine sand swallowing experiment and its preparation method. The specific steps for preparing coarse sand include:

[0047] The first step is to remove impurities: to screen the raw ore. The main components of the raw ore are silicon dioxide, aluminum oxide, ferric oxide / ferric oxide, calcium oxide, potassium oxide, sodium oxide, and magnesium oxide. The mass percentages of each component are: 60% silicon dioxide, 10% aluminum oxide, 9% ferric oxide / iron tetroxide, 8% calcium oxide, 6% potassium oxide, 6% sodium oxide, magnesium oxide 1%; remove the ore with high impurity content to obtain the ore with the desired composition;

[0048] The second step, water washing: use tap water to wash the required component ore obtained in the first step to remove impurities, dirt and attachments on the surface of the ore;

[0049] The third step is to remove water: the washed ore is naturally dried for 5 hours, and the water o...

Embodiment 3

[0055] This embodiment is an exemplary coarse sand for aero-engine sand swallowing experiment and its preparation method. The specific steps for preparing coarse sand include:

[0056] The first step is to remove impurities: to screen the raw ore. The main components of the raw ore are silicon dioxide, aluminum oxide, ferric oxide / ferric oxide, calcium oxide, potassium oxide, sodium oxide, and magnesium oxide. The mass percentages of each component are: 58% silicon dioxide, 16% aluminum oxide, 8% ferric oxide / iron tetroxide, 7% calcium oxide, 5.2% potassium oxide, 5% sodium oxide, magnesium oxide 0.8%; remove the ore with high impurity content to obtain the ore with the desired composition;

[0057] The second step, water washing: use tap water to wash the required component ore obtained in the first step to remove impurities, dirt and attachments on the surface of the ore;

[0058] The third step is to remove water: the washed ore is naturally dried for 3 hours, and the wat...

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Abstract

The invention discloses standard coarse silica sand for an aviation engine sand swallowing experiment and a preparation method and application thereof. The coarse sand is prepared from, by weight, 55-60 parts of silicon dioxide, 10-20 parts of aluminum oxide, 7-9 parts of ferric oxide, 6-8 parts of calcium oxide, 5-6 parts of potassium oxide, 4-6 parts of sodium oxide and 0-1 part of magnesium oxide. The ingredients and grain size mass percentage of the standard coarse silica sand for the aviation engine sand swallowing experiment are close to the reality, the grain size distribution is reasonable, the shape is proper, the typical representativity is achieved, and the experiment requirement for simulating sand dust environment conditions in different regions is met.

Description

technical field [0001] The invention relates to the technical field of aero-engine environmental tests, in particular to a coarse sand used in an aero-engine sand swallowing experiment and a preparation method and application thereof. Background technique [0002] When an aircraft takes off and lands in harsh environments such as deserts, the impact and wear of sand and dust particles on the engine is very serious. For example, when helicopters and transport planes take off and land in desert areas, the airflow induces and carries sand and dust particles into the engine at high speed, causing the compressor blades to be impacted and worn by sand and dust, and its shape and structural integrity are severely damaged, resulting in engine performance damage. Attenuation and life reduction seriously affect combat performance. [0003] Sand and dust particle erosion refers to the phenomenon that the material surface is asymptotically impacted and worn when sand and dust particles...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/12G01M15/00
CPCC01B33/12G01M15/00
Inventor 张佳
Owner 北京辰融科技有限责任公司
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