CN1086228C - Pellet density testing method for magnesium-smelting silicothermic process - Google Patents
Pellet density testing method for magnesium-smelting silicothermic process Download PDFInfo
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- CN1086228C CN1086228C CN 99102664 CN99102664A CN1086228C CN 1086228 C CN1086228 C CN 1086228C CN 99102664 CN99102664 CN 99102664 CN 99102664 A CN99102664 A CN 99102664A CN 1086228 C CN1086228 C CN 1086228C
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- magnesium
- pelletizing
- pellet density
- pellet
- density
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Abstract
The present invention relates to a pellet density testing method for smelting magnesium with a silicothermic method. The steps comprise: triethanolamine and liquid paraffin are used to prepare liquid according to a ratio of 5:1, the liquid is filled in a measuring cylinder, and pellet quality is weighed; pellets are put in the measuring cylinder to measure the volume, the density of the pellets can be simply calculated, and thus, the production is quickly and scientifically guided.
Description
The invention belongs to the quality control in the magnesium-smelting silicothermic process technological process, relate to a kind of mensuration specifically raw material pelletizing compaction rate.
In recent years, along with the high speed development of industry, both at home and abroad to the demand of magnesium metal in continuous growth, thereupon, domestic " magnesium-smelting silicothermic process " is very in vogue.This process for smelting magnesium: be with ferrosilicon, rauhkalk, three kinds of furnace charge fragmentations, levigate of fluorite, batch mixes is pressed into pelletizing then by a certain percentage, inserts high temperature reduction generation magnesium vapor in the vacuum tank, magnesium vapor cooling condensation obtains crude magnesium, and final purification becomes magnesium metal.For chemical reaction is carried out smoothly, improving output and efficient, furnace charge, to be pressed into the compaction rate of pelletizing also very important.Suitable pellet density can make the existing certain compression strength of pelletizing.Be difficult for broken, be beneficial to again simultaneously magnesium vapor from pelletizing inside through the surface to external diffusion.The compaction rate of pelletizing depends on the pressure size of ball press, and under the pressure that technological requirement is set, often owing to the variation of furnace charge, the density of pelletizing also can change.That is to say, for the pellet density that reaches process stipulation, the compressive strength that needs often to spot-check pelletizing, adjust the pressure of press in the actual production.Introduce in " magnesium-smelting silicothermic process theory and practice " book: the compressive strength of pelletizing is measured with specialized equipment.Because this specialized equipment costs an arm and a leg, utilization factor is not high simultaneously, therefore domestic middle-size and small-size refining magnesium factory adopt mostly empirical method measure the compressive strength of pelletizing, generally be will selective examination pelletizing, freely fall on the smooth cement flooring from 1 meter eminence, be that intensity is suitable to be broken into pintongs.This method is difficult to scientifically instruct produce.
Purpose of the present invention is intended to overcome the deficiency of prior art, and the assay method of a kind of magnesium-smelting silicothermic process with pellet density is provided, and both needn't use expensive specialized equipment to measure its compressive strength, can easily, scientifically instruct again and produce.
The present invention is achieved through the following technical solutions its purpose.A kind of magnesium-smelting silicothermic process assay method of pellet density, its step is as follows:
1, obtaining liq: triethanolamine: white oil=5: 1:
2, described liquid is inserted in the graduated cylinder;
3, the quality of the described pelletizing of weighing;
4, pelletizing is put into graduated cylinder, measure the pelletizing volume;
5, calculate its density;
Advantage of the present invention;
1, method is easy.Because the mensuration of pellet density adopts conventional method, at an easy rate according to measure quality and its density of volume calculation.
2, liquid science.Because the liquid of being prepared does not dissolve pelletizing, and chemical reaction does not take place yet, therefore can measure its volume exactly.Described liquid is key of the present invention, has only the described liquid of employing, just makes the mensuration of conventional density become possibility.
3, because measurement is easy, can calculate pellet density fast, in time instruct and produce, adjust pressure, the quality control of realization production run has improved product quality, has increased output, has reduced cost.
The present invention is described further by following examples.
A kind of magnesium-smelting silicothermic process assay method of pellet density, its step:
1, gets triethanolamine and white oil, in 5: 1 ratio obtaining liq 200ml, in the graduated cylinder of packing into;
2, weighing pellet quality in the balance is 465g:
3, above-mentioned pelletizing is put into graduated cylinder, recording volume is 24cm
3
4, bulk density is 1.94g/cm
3
According to facts have proved, pellet density is at 1.9-2.15g/cm
3In the scope, it is higher to go out the magnesium rate.Can in time adjust ball press pressure according to measurement result, reach suitable pellet density.
Claims (1)
1, a kind of magnesium-smelting silicothermic process assay method of pellet density, poly-comprising in step: the described pellet quality of weighing, described pelletizing is inserted measurement volumes in the graduated cylinder that fills liquid, it is characterized in that: described liquid is triethanolamine and white oil mixed liquor, and its ratio is a triethanolamine: white oil=5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99102664 CN1086228C (en) | 1999-04-22 | 1999-04-22 | Pellet density testing method for magnesium-smelting silicothermic process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99102664 CN1086228C (en) | 1999-04-22 | 1999-04-22 | Pellet density testing method for magnesium-smelting silicothermic process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1232964A CN1232964A (en) | 1999-10-27 |
| CN1086228C true CN1086228C (en) | 2002-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99102664 Expired - Fee Related CN1086228C (en) | 1999-04-22 | 1999-04-22 | Pellet density testing method for magnesium-smelting silicothermic process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1086228C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898711B (en) * | 2012-12-27 | 2018-03-20 | 青岛海尔洗衣机有限公司 | A kind of method and its washing machine of recognizable washing clothing material |
| CN107270988A (en) * | 2017-06-05 | 2017-10-20 | 柳州钢铁股份有限公司 | pellet volume measuring method |
-
1999
- 1999-04-22 CN CN 99102664 patent/CN1086228C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1232964A (en) | 1999-10-27 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |