CN103454182A - Method for determining mixing kneading temperature and molding temperature of prebaked anodes - Google Patents
Method for determining mixing kneading temperature and molding temperature of prebaked anodes Download PDFInfo
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- CN103454182A CN103454182A CN2012101745281A CN201210174528A CN103454182A CN 103454182 A CN103454182 A CN 103454182A CN 2012101745281 A CN2012101745281 A CN 2012101745281A CN 201210174528 A CN201210174528 A CN 201210174528A CN 103454182 A CN103454182 A CN 103454182A
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Abstract
The invention relates to a method for determining a mixing kneading temperature and a molding temperature, and particularly to a method for determining the mixing kneading temperature and the molding temperature of prebaked anodes in a raw anode workshop for producing anodes for aluminum in carbon industry. The method includes the following steps: firstly, sampling asphalt; secondly, carrying out chemical laboratory analysis of the sampled asphalt, wherein main chemical laboratory parameters are a softening point and viscosities at different temperatures; and finally, drawing chemical laboratory data into a viscosity and temperature function relationship curve chart, and determining a reasonable molding temperature rang and a mixing kneading temperature range according to the curve and two intervals. The method has the advantages that after the curve is drawn through obtaining the asphalt softening point and the viscosity data, the reasonable intervals of the mixing kneading temperature and the molding temperature can be clearly seen, the manual experience intervention is reduced, the accuracy of the mixing kneading temperature and the molding temperature is greatly improved, and thus raw anode indicators are improved, and the quality of the products is improved.
Description
Technical field
The technology of the present invention relates to a kind of method of definite kneading and forming temperature, relates in particular to carbon industry and produces aluminium anode in definite prebaked anode kneading in green anode workshop and the method for forming temperature.
Background technology
Progressively implementation along with Chinese large-sized electrolytic tank (500kA, 600kA), cell current increases gradually, the stability of trough self reduces gradually, this makes the heart of market to electrolytic tank---and the quality requirements of prebaked anode is also more and more strict, the particularly performance performance of anode on large scale electrolytic cell, be embodied in the situations such as slag, crackle, arrisdefect, life-span.The green anode workshop is as the main workshop in the prebaked anode production run, the operation such as broken in bearing, screening, batching, thickener preheating, kneading and moulding.Because technique process is many and complicated, processing parameter matching is difficulty comparatively.Lack the Theoretical Determination of important parameter in domestic production, often merely rely on long-term knowhow to determine important parameter, such as thickener kneading and forming temperature, moreover tradesman's level is uneven, and this quality of production to green anode will produce very adverse influence.
Summary of the invention
A kind of definite prebaked anode kneading that the present invention proposes in order to address the above problem and the method for forming temperature, purpose is to match green anode kneading and forming temperature, improves the green anode production quality.
Determine the method for prebaked anode kneading and forming temperature for reaching above-mentioned purpose the present invention, comprise the steps: at first pitch to be sampled; Secondly, the pitch sampled is carried out to assay, mainly chemically examining parameter is the viscosity under softening point and different temperatures; Finally, analysis data is depicted as to viscosity and temperature funtion graph of relation, according to curve and two interval definite rational forming temperature and kneading temperature scopes.
Described pitch is eu-bitumen.
The interval of determining forming temperature is that viscosity is in the 600-3000 zone.
The interval of determining kneading temperature is that viscosity is in the 100-500 zone.
After described sampling spot is positioned at green anode workshop pitch head tank and on the bitumen pipeline before kneading machine.
The chemical examination parameter is asphalt viscosity, and the chemical examination temperature range is at 120-250 ℃.
The data of chemical examination are depicted as to the function relation curve figure of asphalt viscosity and temperature, the curve map horizontal ordinate is temperature, and ordinate is viscosity, adopts the logarithmic axis coordinate.
Advantage of the present invention: obtaining asphalt softening point and viscosity data, after being depicted as curve map, can find out clearly the reasonable interval of kneading temperature and forming temperature, reduced the intervention of artificial experience, kneading and forming temperature degree of accuracy have greatly been improved, thereby improve the green anode index, improve the quality of products.
The accompanying drawing explanation
Fig. 1 is curve synoptic diagram of the present invention.
In figure: four horizontal linears are respectively an interval bottom line and top line from bottom to up, interval two bottom lines and top line, and corresponding viscosity number is respectively 100,500,600 and 3000 respectively; Article two, curve is 1# sample and 2# sample viscosity and temperature relation curve, and following curve is 1# sample curve; Horizontal ordinate is temperature, and ordinate is viscosity, adopts logarithmic coordinate.
Embodiment
Below embodiments of the invention are described in detail by reference to the accompanying drawings, but protection scope of the present invention is not limit by embodiment.
The method of definite prebaked anode kneading of the present invention and forming temperature, comprise the steps: at first pitch to be sampled as shown in the figure; Secondly, the pitch sampled is carried out to assay, mainly chemically examining parameter is the viscosity under softening point and different temperatures; Finally, analysis data is depicted as to viscosity and temperature funtion graph of relation, according to curve and two interval definite rational forming temperature and kneading temperature scopes; Pitch is eu-bitumen; The interval of determining forming temperature is that viscosity is in the 600-3000 zone; The interval of determining kneading temperature is that viscosity is in the 100-500 zone; After sampling spot is positioned at green anode workshop pitch head tank and on the bitumen pipeline before kneading machine; The chemical examination parameter is asphalt viscosity, and the chemical examination temperature range is at 120-250 ℃; The data of chemical examination are depicted as to the function relation curve figure of asphalt viscosity and temperature, the curve map horizontal ordinate is temperature, and ordinate is viscosity, adopts the logarithmic axis coordinate.
The present embodiment is got two samples, is respectively 1# sample and 2# sample.
The 1# sample, asphalt viscosity is along with the increase of temperature descends gradually, and curve successively passes through interval two and interval one, enters interval 2 o'clock corresponding temperature and is about 157 ℃, out the temperature of interval two correspondences is about 179 ℃, and this illustrates that suitable forming temperature interval is 157 ~ 179 ℃.The temperature that enters an interval correspondence is about 182 ℃, and out the temperature of interval two correspondences is about 214 ℃, illustrates that suitable kneading temperature interval is at 182 ~ 214 ℃.But in general, improve the restriction that kneading temperature is subject to the kneading machine heat transfer area, temperature improves limited in one's ability, therefore gets less temperature as kneading and forming temperature, and the kneading temperature of 1# sample is about 182 ℃ like this, and forming temperature is about 157 ℃.The 2# sample the like.
Claims (7)
1. determine the method for prebaked anode kneading and forming temperature, it is characterized in that comprising the steps: at first pitch to be sampled; Secondly, the pitch sampled is carried out to assay, mainly chemically examining parameter is the viscosity under softening point and different temperatures; Finally, analysis data is depicted as to viscosity and temperature funtion graph of relation, according to curve and two interval definite rational forming temperature and kneading temperature scopes.
2. the method for definite prebaked anode kneading according to claim 1 and forming temperature, is characterized in that described pitch is eu-bitumen.
3. the method for definite prebaked anode kneading according to claim 1 and forming temperature, is characterized in that determining that the interval of forming temperature is that viscosity is in the 600-3000 zone.
4. the method for definite prebaked anode kneading according to claim 1 and forming temperature, is characterized in that determining that the interval of kneading temperature is that viscosity is in the 100-500 zone.
5. the method for definite prebaked anode kneading according to claim 1 and forming temperature, it is characterized in that described sampling spot be positioned at green anode workshop pitch head tank after and on kneading machine bitumen pipeline before.
6. the method for definite prebaked anode kneading according to claim 1 and forming temperature, it is characterized in that chemically examining parameter is asphalt viscosity, the chemical examination temperature range is at 120-250 ℃.
7. the method for definite prebaked anode kneading according to claim 1 and forming temperature, it is characterized in that the data of chemical examination are depicted as the function relation curve figure of asphalt viscosity and temperature, the curve map horizontal ordinate is temperature, and ordinate is viscosity, adopts the logarithmic axis coordinate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101745281A CN103454182A (en) | 2012-05-31 | 2012-05-31 | Method for determining mixing kneading temperature and molding temperature of prebaked anodes |
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| CN2012101745281A CN103454182A (en) | 2012-05-31 | 2012-05-31 | Method for determining mixing kneading temperature and molding temperature of prebaked anodes |
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| CN2012101745281A Pending CN103454182A (en) | 2012-05-31 | 2012-05-31 | Method for determining mixing kneading temperature and molding temperature of prebaked anodes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932430A (en) * | 2017-03-17 | 2017-07-07 | 四川旭虹光电科技有限公司 | The determination method of 3D bend glass hot bending temperature parameters |
| CN116672950A (en) * | 2023-06-19 | 2023-09-01 | 山西宇通碳素有限公司 | Processing equipment and method for cathode carbon product |
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|---|---|---|---|---|
| CN101308104A (en) * | 2008-06-24 | 2008-11-19 | 中国铝业股份有限公司 | Method for determining electrolytic aluminum carbon paste kneading temperature |
| CN101812235A (en) * | 2010-04-23 | 2010-08-25 | 中南大学 | Method for improving rheological property of coal pitch and increasing coking value of coal pitch and modifier thereof |
| CN101871897A (en) * | 2010-06-13 | 2010-10-27 | 中钢集团吉林炭素股份有限公司 | Method for determining kneading temperature of graphite electrode carbon paste |
| CN102364404A (en) * | 2011-11-04 | 2012-02-29 | 沈阳铝镁设计研究院有限公司 | Production process control method for prebaked anode |
-
2012
- 2012-05-31 CN CN2012101745281A patent/CN103454182A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308104A (en) * | 2008-06-24 | 2008-11-19 | 中国铝业股份有限公司 | Method for determining electrolytic aluminum carbon paste kneading temperature |
| CN101812235A (en) * | 2010-04-23 | 2010-08-25 | 中南大学 | Method for improving rheological property of coal pitch and increasing coking value of coal pitch and modifier thereof |
| CN101871897A (en) * | 2010-06-13 | 2010-10-27 | 中钢集团吉林炭素股份有限公司 | Method for determining kneading temperature of graphite electrode carbon paste |
| CN102364404A (en) * | 2011-11-04 | 2012-02-29 | 沈阳铝镁设计研究院有限公司 | Production process control method for prebaked anode |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932430A (en) * | 2017-03-17 | 2017-07-07 | 四川旭虹光电科技有限公司 | The determination method of 3D bend glass hot bending temperature parameters |
| CN106932430B (en) * | 2017-03-17 | 2019-10-29 | 四川旭虹光电科技有限公司 | The determination method of 3D bend glass hot bending temperature parameter |
| CN116672950A (en) * | 2023-06-19 | 2023-09-01 | 山西宇通碳素有限公司 | Processing equipment and method for cathode carbon product |
| CN116672950B (en) * | 2023-06-19 | 2023-11-17 | 山西宇通碳素有限公司 | Processing equipment and method for cathode carbon product |
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Application publication date: 20131218 |