TW201805435A - Method for predicting viscosity of slag capable of evaluating the fluidity of the slag - Google Patents
Method for predicting viscosity of slag capable of evaluating the fluidity of the slag Download PDFInfo
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- TW201805435A TW201805435A TW105124567A TW105124567A TW201805435A TW 201805435 A TW201805435 A TW 201805435A TW 105124567 A TW105124567 A TW 105124567A TW 105124567 A TW105124567 A TW 105124567A TW 201805435 A TW201805435 A TW 201805435A
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- 239000002893 slag Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 20
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 20
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 20
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 17
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 17
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000292 calcium oxide Substances 0.000 claims abstract description 16
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 14
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000805 Pig iron Inorganic materials 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 30
- 229910052742 iron Inorganic materials 0.000 abstract description 15
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000000611 regression analysis Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Treatment Of Steel In Its Molten State (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
本發明是有關於一種預測方法，特別是指一種預測熔渣黏度的方法。The invention relates to a prediction method, in particular to a method for predicting the viscosity of slag.
將含鐵礦物還原成生鐵的生產過程稱為煉鐵，其中，該含鐵礦物例如鐵礦石。於該生產過程中，該含鐵礦物被還原並熔化成生鐵水，而該生鐵水被排出於一煉鐵爐外，並經降溫後形成生鐵塊。於該生產過程中除形成有該生鐵水外，還會生產出熔渣(slag，亦稱爐渣)。在該生產過程中，生鐵水的排出作業的順暢度會受熔渣的流動性所影響。當該熔渣的流動性差，會牽引該生鐵水的流動，導致生鐵水排出不順暢。The process of reducing iron-containing minerals to pig iron is called ironmaking, where the iron-containing minerals are, for example, iron ore. During the production process, the iron-containing mineral is reduced and melted into pig iron, and the pig iron is discharged out of an ironmaking furnace, and pig iron is formed after cooling. In addition to forming the pig iron in the production process, slag (also known as slag) is also produced. In this production process, the smoothness of the pig iron discharge operation is affected by the fluidity of the slag. When the fluidity of the slag is poor, the flow of the molten pig iron will be pulled, and the discharge of the molten pig iron will not be smooth.
因此，監控熔渣的流動性對於煉鐵過程來說是相當重要的。熔渣的流動性一般是以黏度來評估，然而，量測熔渣的黏度相當的費時，而無法即時獲得，使得現場操作人員無法即時判斷是否可進行熔渣或生鐵水的排出作業，繼而影響生產效益。Therefore, monitoring the slag fluidity is very important for the ironmaking process. The fluidity of slag is generally evaluated by its viscosity. However, measuring the viscosity of slag is quite time-consuming and cannot be obtained in real time, making it impossible for on-site operators to judge immediately whether the discharge of slag or molten iron can be performed, and then affect Production efficiency.
台灣專利公告第400338號揭示一種可預測黏度以評估線上熔渣的流動性的方法，其中，該線上熔渣的成分包含二氧化矽(SiO2 )、氧化鋁(Al2 O3 )、氧化鈣(CaO)、氧化鎂(MgO)，以及二氧化鈦(TiO2 )。該方法是採集線上熔渣作為量測樣本，並量測該線上熔渣中二氧化矽、氧化鋁、氧化鈣、氧化鎂，以及二氧化鈦的成分百分比，接著，透過液化溫度方程式及黏度方程式計算出該線上熔渣的液化溫度(Tliquidus )及黏度(μ)，並藉由所獲得的液化溫度及黏度，評估該線上熔渣的流動性，其中，該液化溫度方程式及黏度方程式是藉由收集過往的生鐵水的溫度資料、過往的線上熔渣樣本的成分百分比資料，以及過往的線上熔渣樣本的液化溫度及黏度資料，並透過迴歸分析演算法所獲得。Taiwan Patent Publication No. 400338 discloses a method for predicting the viscosity to evaluate the fluidity of an on-line slag, wherein the composition of the on-line slag includes silicon dioxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), and calcium oxide. (CaO), magnesium oxide (MgO), and titanium oxide (TiO 2). The method is to collect the slag on the line as a measurement sample, and measure the composition percentages of silicon dioxide, alumina, calcium oxide, magnesium oxide, and titanium dioxide in the slag on the line, and then calculate it by the liquefaction temperature equation and the viscosity equation. The liquefaction temperature (T liquidus ) and viscosity (μ) of the slag on the line, and the fluidity of the slag on the line is evaluated based on the obtained liquefaction temperature and viscosity. The liquefaction temperature equation and the viscosity equation are collected by Past pig iron temperature data, past online slag sample composition percentage data, and past online slag sample liquefaction temperature and viscosity data are obtained through regression analysis algorithms.
雖該專利案可透過計算的方式即時預測出該線上熔渣的液化溫度及黏度，以提供給現場操作人員來評估該線上熔渣的流動性。然而，該專利案所預測出的黏度(μ)與實際量測的黏度差異過大，導致對線上熔渣的流動性的評估有所偏差，使得熔渣或生鐵水的排出作業仍存在有不順暢的問題。尤其是，當線上熔渣溫度大於1,530℃時，透過該專利案的黏度方程式所預測出來的黏度(μ)為不合理的負值，再者，當線上熔渣溫度小於1,350℃時，所預測出來的黏度(μ)不貼近實際量測的黏度，甚至完全偏離。Although the patent case can predict the liquefaction temperature and viscosity of the slag on the line in real time by calculation, it can be provided to the site operators to evaluate the fluidity of the slag on the line. However, the difference between the predicted viscosity (μ) and the actually measured viscosity in this patent case is too large, which leads to a deviation in the evaluation of the fluidity of the molten slag on the line, so that the discharge of molten slag or pig iron is still not smooth. The problem. In particular, when the online slag temperature is greater than 1,530 ° C, the viscosity (μ) predicted by the viscosity equation of the patent is an unreasonable negative value. Furthermore, when the online slag temperature is less than 1,350 ° C, the predicted The viscosity (μ) is not close to the actual measured viscosity, or even completely deviates.
因此，本發明之目的，即在提供一種用來評估熔渣的流動性的預測熔渣黏度的方法。Therefore, an object of the present invention is to provide a method for predicting the viscosity of slag for evaluating the fluidity of the slag.
於是，本發明預測熔渣黏度的方法，包含步驟(a)，提供一包含二氧化矽(SiO2 )、氧化鋁(Al2 O3 )、氧化鈣(CaO)、氧化鎂(MgO)，以及二氧化鈦(TiO2 )的熔渣，並以該等成分的總量和為100wt%，計算出該等成分的重量百分比；步驟(b)，根據計算出的該等成分的重量百分比，利用一變形溫度公式計算出該熔渣的一變形溫度，其中，該變形溫度為該熔渣由熔融態轉變至固化態過程中，黏度突升時的溫度，該變形溫度公式為a1 A2 +a2 B2 +a3 C2 +a4 D2 +a5 E2 +a6 A+a7 B+a8 C+a9 D+a10 E-65；及步驟(c)，根據計算出的該等成分的重量百分比，利用一黏度公式計算出該熔渣的一預測黏度(μ)，其中，當生鐵水溫度大於該變形溫度時，該黏度公式為μ1500 ×(1500/T)13.4 ，當生鐵水溫度小於或等於該變形溫度時，該黏度公式為μ1500 ×(1500/T)18.2 ；μ1500 為該熔渣在1500℃時以b1 E3 +b2 D2 +b3 A+b4 B+b5 C計算出的黏度；A、B、C、D、E及T依序為二氧化矽的重量百分比、氧化鈣的重量百分比、二氧化鈦的重量百分比、氧化鎂的重量百分比、氧化鋁的重量百分比，以及生鐵水溫度；a1 、a2 、a3 、a4 、a5 、a6 、a7 、a8 、a9 、a10 、b1 、b2 、b3 、b4 及b5 表示常數。Therefore, the method for predicting the viscosity of slag according to the present invention includes step (a), and provides a method including silicon dioxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), calcium oxide (CaO), magnesium oxide (MgO), and Titanium dioxide (TiO 2 ) slag, and the total weight of these components is 100wt% to calculate the weight percentage of these components; step (b), based on the calculated weight percentage of these components, use a deformation A temperature formula calculates a deformation temperature of the slag, wherein the deformation temperature is the temperature at which the viscosity suddenly rises during the transition from the molten state to the solid state of the slag. The formula for the deformation temperature is a 1 A 2 + a 2 B 2 + a 3 C 2 + a 4 D 2 + a 5 E 2 + a 6 A + a 7 B + a 8 C + a 9 D + a 10 E-65; and step (c), according to the calculated The weight percentage of these components is calculated using a viscosity formula to predict the viscosity (μ) of the slag, where the viscosity formula is μ 1500 × (1500 / T) 13.4 when the temperature of the pig iron is greater than the deformation temperature, When the temperature of the pig iron is less than or equal to the deformation temperature, the viscosity formula is μ 1500 × (1500 / T) 18.2 ; μ 1500 is the slag with b 1 E 3 + b 2 D at 1500 ° C. 2 + b 3 A + b 4 B + b 5 C Calculated viscosity; A, B, C, D, E, and T are the weight percentage of silicon dioxide, weight percentage of calcium oxide, weight percentage of titanium dioxide, Weight percentage of magnesium oxide, weight percentage of aluminum oxide, and temperature of pig iron; a 1 , a 2 , a 3 , a 4 , a 5 , a 6 , a 7 , a 8 , a 9 , a 10 , b 1 , b 2 , b 3 , b 4 and b 5 represent constants.
本發明之功效在於：透過該變形溫度公式及該黏度公式，使得所預測出的黏度更貼近在不同溫度下的熔渣的實際量測出的黏度，因而現場操作人員可更準確地評估線上熔渣的流動性，繼而提高熔渣或生鐵水的排出作業的順暢度。The effect of the present invention is that through the deformation temperature formula and the viscosity formula, the predicted viscosity is closer to the actual measured viscosity of the slag at different temperatures, so the field operator can more accurately evaluate the online melting The slag fluidity, in turn, improves the smoothness of the slag or pig iron discharge operation.
本發明將就以下實施例來作進一步說明，但應瞭解的是，該實施例僅為例示說明之用，而不應被解釋為本發明實施之限制。The present invention will be further described with reference to the following examples, but it should be understood that this example is for illustrative purposes only and should not be construed as a limitation on the implementation of the present invention.
本發明預測熔渣黏度的方法適用於預測含有二氧化矽(SiO2 )、氧化鋁(Al2 O3 )、氧化鈣(CaO)、氧化鎂(MgO)，以及二氧化鈦(TiO2 )的熔渣的黏度。該熔渣的氧化鈣的重量百分比與二氧化矽的重量百分比的比值範圍為大於0.88且小於1.37，且，以該熔渣的總量為100wt%計，該氧化鎂的重量百分比範圍為大於0wt%且小於15wt%、該氧化鋁的重量百分比範圍為大於5wt%且小於20wt%，且該二氧化鈦的重量百分比範圍為大於0wt%且小於5.8wt%。在本發明的第一實施例中，該預測熔渣黏度的方法用來預測一煉鐵的生產過程中所產生的熔渣的黏度。以該煉鐵的生產過程中所產生的熔渣的總量為100wt%計，二氧化矽、氧化鋁、氧化鈣、氧化鎂，以及二氧化鈦的重量百分比總和為大於90wt%。該煉鐵指的是含鐵礦物還原成生鐵。該含鐵礦物例如但不限於鐵礦石。該煉鐵是利用一煉鐵爐，例如但不限於高爐，來進行。該煉鐵爐並非本發明主要的技術特徵，且該煉鐵爐為本領域技術人員所公知的，為了精簡的因素，故細節在此不多作說明。The method for predicting the viscosity of slag according to the present invention is suitable for predicting slag containing silicon dioxide (SiO 2 ), aluminum oxide (Al 2 O 3 ), calcium oxide (CaO), magnesium oxide (MgO), and titanium dioxide (TiO 2 ). Viscosity. The ratio of the weight percentage of calcium oxide to the weight percentage of silicon dioxide of the slag ranges from more than 0.88 to less than 1.37, and based on the total amount of the slag being 100 wt%, the weight percentage of the magnesium oxide ranges from more than 0 wt % And less than 15 wt%, the weight percentage of the alumina ranges from more than 5 wt% and less than 20 wt%, and the weight percentage of the titanium dioxide ranges from more than 0 wt% and less than 5.8 wt%. In the first embodiment of the present invention, the method for predicting the viscosity of the slag is used to predict the viscosity of the slag generated during the production of an iron smelting process. The total weight percentage of silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and titanium dioxide is greater than 90% by weight based on the total amount of slag generated during the iron-making process. The ironmaking refers to reduction of iron-containing minerals into pig iron. The iron-containing mineral is, for example, but not limited to, iron ore. The ironmaking is performed using an ironmaking furnace such as, but not limited to, a blast furnace. The ironmaking furnace is not the main technical feature of the present invention, and the ironmaking furnace is well known to those skilled in the art. For the sake of simplicity, details are not described here.
本發明預測熔渣黏度的方法包含步驟(a)至步驟(c)。The method for predicting slag viscosity according to the present invention comprises steps (a) to (c).
在該步驟(a)中，提供一包含二氧化矽、氧化鋁、氧化鈣、氧化鎂，以及二氧化鈦的熔渣，並以該等成分的總量和為100wt%，計算出該等成分的重量百分比。所謂該等成分指的是二氧化矽、氧化鋁、氧化鈣、氧化鎂，以及二氧化鈦。在本發明預測熔渣黏度的方法之一實施例中，以該熔渣的總量為100wt%計，該二氧化矽、氧化鋁、氧化鈣、氧化鎂以及二氧化鈦的重量百分比依序為36.20wt%、14.06wt%、41.09wt%、6.93wt%，以及0.5wt%。在本發明預測熔渣黏度的方法之第二實施例中，以該熔渣的總量為100wt%計，該二氧化矽、氧化鋁、氧化鈣、氧化鎂以及二氧化鈦的重量百分比依序為36.06wt%、14.45wt%、40.15wt%、6.45wt%，以及0.54wt%。In step (a), a slag containing silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and titanium dioxide is provided, and the weight of these components is calculated based on the total sum of these components being 100% by weight. percentage. These ingredients refer to silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and titanium dioxide. In an embodiment of the method for predicting the viscosity of the slag in the present invention, based on the total amount of the slag being 100% by weight, the weight percentages of the silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and titanium dioxide are sequentially 36.20wt. %, 14.06 wt%, 41.09 wt%, 6.93 wt%, and 0.5 wt%. In the second embodiment of the method for predicting the viscosity of the slag in the present invention, based on the total amount of the slag being 100 wt%, the weight percentages of the silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and titanium dioxide are 36.06 in order. wt%, 14.45wt%, 40.15wt%, 6.45wt%, and 0.54wt%.
在該步驟(b)中，根據以該等成分的總量和為100wt%所計算出的該等成分的重量百分比，利用一變形溫度公式計算出該熔渣的一變形溫度。該變形溫度公式為a1 A2 +a2 B2 +a3 C2 +a4 D2 +a5 E2 +a6 A+a7 B+a8 C+a9 D+a10 E-65。In this step (b), a deformation temperature of the slag is calculated using a deformation temperature formula based on the total weight of the components and the weight percentage of the components calculated as 100 wt%. The deformation temperature formula is a 1 A 2 + a 2 B 2 + a 3 C 2 + a 4 D 2 + a 5 E 2 + a 6 A + a 7 B + a 8 C + a 9 D + a 10 E- 65.
A、B、C、D及E依序為以該等成分的總量和為100wt%計時，二氧化矽的重量百分比、氧化鈣的重量百分比、二氧化鈦的重量百分比、氧化鎂的重量百分比，以及氧化鋁的重量百分比。a1 、a2 、a3 、a4 、a5 、a6 、a7 、a8 、a9 ，及a10 表示常數。該a1 範圍為-0.08至-0.04。該a2 範圍為-0.8至-0.6。該a3 範圍為2.2至2.5。該a4 範圍為-0.2至-0.1。該a5 範圍為-0.6至-0.4。該a6 範圍為-7.3至-6.9。該a7 範圍為67至72。該a8 範圍為-34至-32。該a9 範圍為4.4至5.0。該a10 範圍為15至18。A, B, C, D, and E are based on the total amount of these ingredients and 100% by weight, the weight percentage of silicon dioxide, the weight percentage of calcium oxide, the weight percentage of titanium dioxide, the weight percentage of magnesium oxide, and Weight percent of alumina. a 1 , a 2 , a 3 , a 4 , a 5 , a 6 , a 7 , a 8 , a 9 , and a 10 represent constants. The a 1 range is -0.08 to -0.04. The a 2 range is -0.8 to -0.6. The a 3 range is 2.2 to 2.5. The a 4 range is -0.2 to -0.1. The a 5 range is -0.6 to -0.4. The a 6 range is -7.3 to -6.9. The a 7 range is 67 to 72. The a 8 range is -34 to -32. The a 9 range is 4.4 to 5.0. The a 10 range is 15 to 18.
該變形溫度公式是藉由收集複數個熔渣的該等成分的重量百分比(以該等成份總量和為100wt%計)及儀器量測出的該等熔渣的變形溫度資料，並透過迴歸分析演算法所獲得。該變形溫度公式為一五元二次多項式，且判定係數(coefficient of determination，R2 )為0.95。該變形溫度指的是該熔渣由熔融態轉變至固化態過程中，黏度突升時的溫度。該熔渣的變形溫度範圍為1,280℃至1,410℃。該熔渣的變形溫度係利用一軟熔溫度量測儀進行量測。該軟熔溫度量測儀並非本發明主要的技術特徵，且該軟熔溫度量測儀為本領域技術人員所公知的，例如參閱台灣專利公告第400338號揭示的軟熔溫度量測儀，為了精簡的因素，故細節在此不多作說明。The deformation temperature formula is obtained by collecting the weight percentages of the components of the slag (based on the total of the components and the total weight of 100% by weight) and the deformation temperature data of the slag measured by instruments, and through regression Obtained by analyzing the algorithm. The deformation temperature formula is a one-fifth-degree quadratic polynomial, and a coefficient of determination (R 2 ) is 0.95. The deformation temperature refers to a temperature at which the viscosity suddenly rises during the slag transition from a molten state to a solid state. The slag has a deformation temperature ranging from 1,280 ° C to 1,410 ° C. The deformation temperature of the slag is measured using a reflow temperature measuring instrument. The reflow temperature measuring instrument is not the main technical feature of the present invention, and the reflow temperature measuring instrument is well known to those skilled in the art. For example, refer to the reflow temperature measuring instrument disclosed in Taiwan Patent Publication No. 400338. Streamlined factors, so the details are not explained here.
在該步驟(c)中，根據以該等成分的總量和為100wt%所計算出的該等成分的重量百分比，利用一黏度公式計算出該熔渣的一預測黏度(μ)。當生鐵水溫度(T)大於該變形溫度時，該黏度公式為μ1500 ×(1500/T)13.4 。當生鐵水溫度(T)小於或等於該變形溫度時，該黏度公式為μ1500 ×(1500/T)18.2 。本發明預測熔渣黏度的方法透過考量該熔渣的變形溫度，以使當熔渣溫度小於1,350時，所預測出來的黏度是貼近實際量測的黏度，甚至完全符合。In step (c), a predicted viscosity (μ) of the slag is calculated using a viscosity formula according to the total weight of the components and the weight percentage of the components calculated as 100 wt%. When the molten iron temperature (T) is greater than the deformation temperature, the viscosity formula is μ 1500 × (1500 / T) 13.4 . When the molten iron temperature (T) is less than or equal to the deformation temperature, the viscosity formula is μ 1500 × (1500 / T) 18.2 . The method for predicting the viscosity of the slag in the present invention considers the deformation temperature of the slag, so that when the temperature of the slag is less than 1,350, the predicted viscosity is close to the actual measured viscosity, or even completely matches it.
該μ1500 為利用b1 E3 +b2 D2 +b3 A+b4 B+b5 C計算出該熔渣溫度在1500℃時的預測黏度。A、B、C、D及E如上所述，故不再贅述。T表示生鐵水溫度。b1 、b2 、b3 、b4 及b5 表示常數。該b1 範圍為0.003至0.006。該b2 範圍為-0.005至-0.002。該b3 範圍為0.04至0.08。該b4 範圍為0.02至0.05。該b5 範圍為-0.7至-0.5。該黏度公式是藉由收集複數個生鐵水溫度資料、複數個熔渣的該等成分的重量百分比(以該等成份總量和為100wt%計)，及複數個熔渣在1,500℃時的儀器量測出的黏度資料，並透過迴歸分析演算法所獲得。該μ1500 為一五元三次多項式，且判定係數為0.93。該生鐵水溫度範圍為1,300℃至1,580℃。該熔渣的黏度係利用一高溫黏度計進行量測。該高溫黏度計並非本發明主要的技術特徵，且該高溫黏度計為本領域技術人員所公知的，例如參閱台灣專利公告第400338號揭示的旋轉式高溫黏度計，為了精簡的因素，故細節在此不多作說明。The μ 1500 is the predicted viscosity of the slag temperature at 1500 ° C. calculated using b 1 E 3 + b 2 D 2 + b 3 A + b 4 B + b 5 C. A, B, C, D and E are as described above, so they will not be repeated. T is the temperature of the pig iron. b 1 , b 2 , b 3 , b 4 and b 5 represent constants. The b 1 range is 0.003 to 0.006. The b 2 range is -0.005 to -0.002. The b 3 range is 0.04 to 0.08. The b 4 range is 0.02 to 0.05. The b 5 range is -0.7 to -0.5. The viscosity formula is obtained by collecting a plurality of molten iron temperature data, a weight percentage of the components of the slag (based on the total of the components and 100% by weight), and an instrument at a temperature of 1,500 ° C of the plurality of slags. Measured viscosity data and obtained through regression analysis algorithm. The μ 1500 is a cubic polynomial of one or five elements, and the determination coefficient is 0.93. The pig iron temperature range is from 1,300 ° C to 1,580 ° C. The viscosity of the slag was measured using a high-temperature viscometer. The high-temperature viscometer is not the main technical feature of the present invention, and the high-temperature viscometer is well known to those skilled in the art. This is not much to explain.
參閱圖1，粗虛線為利用高溫黏度計(廠牌：BROOKFIELD；型號：Model DV-II)實際量測出在不同溫度下的熔渣的黏度、細虛線為本發明之第一實施例且利用本發明黏度公式所計算出在不同溫度下的熔渣的預測黏度，以及實線為利用台灣專利公告第400338號揭示黏度方程式所計算出在不同溫度下的熔渣的預測黏度。由圖1可知，該台灣專利公告第400338號所預測出的黏度與實際量測的黏度差異過大，而本發明預測熔渣黏度的方法所預測出的黏度更貼近實際量測的黏度。尤其是，當該熔渣溫度小於1,350℃時，本發明所預測出來的黏度，相較於該台灣專利公告第400338號所預測出的黏度，更貼近實際量測的黏度。Referring to FIG. 1, the thick dotted line is a viscosity measured by a high temperature viscometer (brand: BROOKFIELD; Model: Model DV-II) at different temperatures, and the thin dotted line is the first embodiment of the present invention. The predicted viscosity of the slag at different temperatures calculated by the viscosity formula of the present invention, and the solid line is the predicted viscosity of the slag at different temperatures calculated by using the viscosity equation disclosed in Taiwan Patent Publication No. 400338. It can be seen from FIG. 1 that the viscosity predicted by the Taiwan Patent Publication No. 400338 is too large from the actually measured viscosity, and the viscosity predicted by the method for predicting the viscosity of the slag according to the present invention is closer to the actually measured viscosity. In particular, when the slag temperature is less than 1,350 ° C, the viscosity predicted by the present invention is closer to the actually measured viscosity than the viscosity predicted by the Taiwan Patent Publication No. 400338.
參閱圖2，粗虛線為利用高溫黏度計實際量測出在不同溫度下的熔渣的黏度，以及細虛線為本發明之第二實施例且利用本發明黏度公式所計算出在不同溫度下的熔渣的預測黏度。由圖2可知，本發明預測熔渣黏度的方法所預測出的黏度更貼近實際量測的黏度，尤其是，當該熔渣溫度小於1,350℃時。Referring to FIG. 2, the thick dashed line is the viscosity of the slag at different temperatures measured with a high-temperature viscometer, and the thin dashed line is the second embodiment of the present invention and calculated at different temperatures using the viscosity formula of the present invention. Predicted viscosity of slag. It can be seen from FIG. 2 that the viscosity predicted by the method for predicting the viscosity of the slag according to the present invention is closer to the actual measured viscosity, especially when the temperature of the slag is less than 1,350 ° C.
綜上所述，本發明預測熔渣黏度的方法透過該變形溫度公式及黏度公式，使得所預測出的黏度更貼近在不同溫度下的熔渣的實際量測出的黏度，因而現場操作人員可更準確地評估線上熔渣的流動性，繼而提高熔渣或生鐵水的排出作業的順暢度，故確實能達成本發明之目的。In summary, the method for predicting the viscosity of slag according to the present invention makes the predicted viscosity closer to the actual measured viscosity of slag at different temperatures through the deformation temperature formula and viscosity formula. The fluidity of the slag on the line is more accurately evaluated, and the smoothness of the discharge operation of the slag or molten iron is improved, so the purpose of the invention can be achieved.
惟以上所述者，僅為本發明之實施例而已，當不能以此限定本發明實施之範圍，凡是依本發明申請專利範圍及專利說明書內容所作之簡單的等效變化與修飾，皆仍屬本發明專利涵蓋之範圍內。However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.
本發明之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中： 圖1是一曲線圖，說明本發明預測熔渣黏度的方法之一第一實施例所預測出的黏度以及台灣專利公告第400338號的方法所預測出的黏度，與實際量測出的黏度間的差異程度；及 圖2是一曲線圖，說明本發明預測熔渣黏度的方法之一第二實施例所預測出的黏度，與實際量測出的黏度間的差異程度。Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, wherein: FIG. 1 is a graph illustrating one of the methods for predicting the viscosity of the slag according to the first embodiment of the present invention. Viscosity and the degree of difference between the viscosity predicted by the method of Taiwan Patent Publication No. 400338 and the actually measured viscosity; and FIG. 2 is a graph illustrating a second implementation of the method for predicting the viscosity of slag according to the present invention The degree of difference between the predicted viscosity and the actual measured viscosity.
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