TW201028670A - Measurement apparatus for liquid level of molten metal and the measurement method thereof - Google Patents

Measurement apparatus for liquid level of molten metal and the measurement method thereof Download PDF

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Publication number
TW201028670A
TW201028670A TW98102635A TW98102635A TW201028670A TW 201028670 A TW201028670 A TW 201028670A TW 98102635 A TW98102635 A TW 98102635A TW 98102635 A TW98102635 A TW 98102635A TW 201028670 A TW201028670 A TW 201028670A
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TW
Taiwan
Prior art keywords
measuring
molten metal
image
marker
measurement
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TW98102635A
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Chinese (zh)
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TWI382159B (en
Inventor
Zhi-Zhou Xie
zhen-wei Hu
Ying Ci
Da Zhang
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Univ Northeastern
Shenyang Taihe Metallurg Measurement & Control Tecnology Co Ltd
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Priority to TW98102635A priority Critical patent/TW201028670A/en
Publication of TW201028670A publication Critical patent/TW201028670A/en
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Publication of TWI382159B publication Critical patent/TWI382159B/zh

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Abstract

The present invention relates to a measurement apparatus for liquid level of molten metal and the measurement method thereof, having the features: comprising pattern measuring apparatus, measurement labeling object, elevation mechanism, displacement sensor, data processing system and calibration label; The pattern measuring apparatus can be installed on the elevation mechanism or independent from the elevation mechanism, the optical axis of the pattern measuring apparatus forms an included angle with the axis of the measurement labeling object; the measurement labeling object can be installed on the elevation mechanism or independent from the elevation mechanism, the measurement labeling object is located within the viewing angle of the pattern measuring apparatus; the data processing system is connected with the pattern measuring apparatus, displacement sensor and elevation mechanism respectively; the elevation mechanism can be installed on the molten metal container or independent from the molten metal container. By inserting the measurement labeling object into the molten metal through the slag layer, and then raising the measurement labeling object out of the molten metal, the thermal pattern of the labeling object will carry the information of slag layer thickness so that the thickness of slag layer can be obtained; thereby the liquid level of molten metal can be measured accurately.

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201028670 六、發明說明: 【發明所屬 <技術領域】 本發明涉及-祕融金屬液位_妓置和使崎裝置測量 熔融金屬液位的方法。 【先前技術】 贫在錄金屬連續餘過程巾,為了鱗關麵溫度和防止 氧化’常在縣金屬絲面添加賴糾形錢層。而在、、堯、、主、尚 ❹程中,隨時掌握说注的金屬包中的炫融金屬液位高度(不 層)’對於決定開洗時間、防止液位過低導致潰捲入翻和二高= 融金屬的收得率是很重要的。但是,渣層的存在和它的厚度難以 確定給熔融金屬液位的準確測量帶來了困難。 為此,“金屬容器稱重法,,已為人們所熟知,它是通過稱量 裝有溶融金屬的金屬容器_重量和—些巳知參數(如金屬容器 容積及重量、躲金屬密度料)計算出熔融金柄液位高产了 ©但是’由於雜金屬密度和其表紐層的密度不同,域量未^, =以測量中將歸的厚度也包算在液態金相液㈣度内,造成測 里不準’另-方面’金屬包的包襯被熔融金屬腐钱使其容積不斷 變化也會造成測量偏差;就是說,金屬容器總重量的變化不能 與液態金屬液位建立準確的對賴係,故該方法只能粗略估計炫融 金屬液位。 …公開號為DE2945251-A1的制專利公開了—種“使用成像 糸統檢顺面鐳射點來剩量鋼包中鋼水液位,,的方法。該方法是 201028670 用雷射光束照射熔融金屬渣層上表 點位置,當液面位置變化時,鐳射點===感測器檢測光 映的嶋,,一二 厚度貧訊,只能測量料上表驗置; 不平時也造成測量誤差201028670 VI. Description of the Invention: [Technical Field] The present invention relates to a method for measuring a molten metal level by a metal melt level and a device for making a molten metal. [Prior Art] Lean in the continuous metal process towel, in order to scale the surface temperature and prevent oxidation 'often in the county wire surface added Lai correction shaped money layer. In the process of,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, And the second high = the yield of molten metal is very important. However, the presence of the slag layer and its thickness are difficult to determine, making it difficult to accurately measure the molten metal level. To this end, the "metal container weighing method, which is well known, is by weighing a metal container containing molten metal _ weight and - some known parameters (such as metal container volume and weight, hiding metal density material) It is calculated that the molten gold handle liquid level is high-yielding. However, due to the difference in the density of the mixed metal and the density of the surface layer, the amount of the domain is not ^, and the thickness to be returned in the measurement is also included in the liquid metallographic solution (four degrees). The measurement of the 'other-side' metal lining is not allowed to change the volume of molten metal to make the measurement deviation; that is, the change of the total weight of the metal container can not establish an accurate pair with the liquid metal level. Lai system, so this method can only roughly estimate the liquid level of the molten metal. ... The patent publication number DE2945251-A1 discloses a kind of "using the imaging system to check the smooth laser spot to the molten steel level in the ladle." ,,Methods. The method is 201028670. The laser beam is used to illuminate the surface of the molten metal slag layer. When the liquid level changes, the laser spot === sensor detects the 光 of the light, and the thickness is poor. The above table is tested; the measurement error is also caused by the irregularity.

而不,财技術由於不能㈣熔齡私面渣層的厚产 糊量絲麵的祕高度。邮提供-觀夠測量二 炼融金屬表_層厚度’進醇销纽融金錢位的方法和裳 置就成為忒技術領域急需解決的技術問題。 【發明内容】 本發明的目的之—在於,克服現有技術不足,提供-種能夠 測量=金屬麵絲厚度,進醇確縣鎖液位的裝置。 為只見上述目的’根據本發明’提供_種溶融金屬液位測量 裝置’其特徵在於:包括圖侧量儀、測量標識物、升降機構、 位移感測n、輯處理祕和校正標識,所制像測量儀安裝在 所述的升降機構上麵立於所料降機構;·_像測量儀的 光軸與所侧量標識物減成—夾角,所酬量標識物安裝在所述 升降機構上或獨立於所述升降機構,所述測量標識物在所述圖像 測量儀的視場範圍内;所述資料處理系統分別與所述圖像測量 儀、所述位移感測器以及所述升降機構相連接;所述升降機構安 裝在熔融金屬容器上或獨立於熔融金屬容器。 一種優選技術方案,其特徵在於:所述升降機構包括升降驅 201028670 動裝置,與所賴練置相連接的料導執,與所述升降導執相 連接的支辟’以及與所述切細連接的蚊裝置,所述測量 標識物通騎義岐裝置被麵絲在糾鶴的支撐架上。 -種優選技術方案,其特徵在於:所述測量標識物為由鎮碳, 或铭碳,或鎂碳錯,或銘碳結高温耐火材料或炫點大於的金 屬材料組成的棒狀、管狀,或條狀物,所述測量標識物的總長度 大於渣層厚度l〇〇mm以上。 -種優選技術方案’其特徵在於··所賴量標識物由鋼水連 續測溫管兼作。 Θ 一種優選技術方案’其特徵在於:所舰融金屬液位測量裝 置設有校正標識,所職正標識為厚度纽i絲小於5G毫米、 高度大於1絲小於漏毫米的環狀物,或長度大於毫米小於 謂毫米、等效直徑大於2毫米小於絲的棒狀、管狀、條 狀物;所述校正標識她碳、鎂碳、紹雜、鎂碳錯材料的耐火 材枓或者馳大於就_域,校正標識位於所述 升降機構上,量標識物未浸續融金制部分上 屬容器上部或㈣,或獨立於軸金屬容器和測量妓之外的能 被所述圖像測量儀識別並定位的位置。 -種優選技術方案’其特徵在於:所述的位移感_斤述 升降機構树接;·位置感_為拉杆式、或_式、轉阻 變換式、或光電編碼器位移感·,或圖像位移感測哭。 一種優選技術方案,其特徵在於:所述圖像測量儀的絲與 5 201028670 所述測量標識物軸線之間形成的夾角在15。到70。之間。 種優選技術方案,其特徵在於:所述圖像糧儀為線哮、 面陣或單點掃描式攝像機或熱像儀。 優4技術方案,其特徵在於:所述圖像測量儀帶有防塵 和防熱保護罩。 本發明的另一目的在於提供一種能夠測量溶融金屬表面逢層 厚度,進而準確測量熔融金屬液位的方法。 本發明的上述目的是通過以下技術方案達到的。 一種熔融金屬液位測量方法,其步驟如下: 日⑴提供—種絲金屬液位測量裝置,其特徵在於:包括圖像剩 里儀/則里才示識物、升降機構、位移感測器、數據處理系統和校 正,識’所顧像·儀安裝在所述的升降機構上;所述的圖像 、昼儀的光軸與所勒彳量標識物軸線成—夾肖,所述測量標識物安 裝在所述升賴構上或獨立於所述升降機構,所酬量標識物在 所述圖像測量儀的視場範圍内;所述數據處理系統分別與所述圖 象肩·!昼儀、所述位移感測益以及所述升降機構相連接,·所述升降 機構安裝在熔融金屬容器上或獨立於熔融金屬容器; (2)所述升降機構帶動測量標識物下降插入熔融金屬中,當測量 ‘識物的溫度達到或接近熔融金屬和渣層的溫度分佈後,所述升 降機構迅速地帶_量標·物,升起高度超顧層的厚度; 所返圖像測量儀採細量標識物升起部分的細像;所述資料處 理系統根據測量標識物在熔融液體與渣層以及渣層與其上方空氣 6 201028670 的分處局部溫度梯度最大這—特點對所述的熱圖像資訊進行 分析計算,分別得觀融液體触層和渣層與其上方空氣之間的 分界面位置高度,兩個分界面位置高度之差即為逢層的厚度; (3)確絲H底部在液侧量裝置中的參考高度,其確定方式 為:通過直接測量容!!底_參考高度,_過升降機構帶_ 量標識物下降與容器底面接觸時的移動量計算容器底面的參考言 度,或事先已知; ^ ^ ❹.⑷再減目像難儀賴縣祕人躲麵巾的測量標識物 或溶融金屬容器的内壁面與渣層上表面交界處圖像,分析計算出 該交界處的位置高度; ^ (5)基於步驟⑷所得到的位置高度和步驟⑵所得的渣層厚 度求得熔融金屬的液位高度,或通過攝取測量標識物升起後其上 的溶融液體與渣層位置高度及測量標識物升起高度獲得溶融金屬 的液位高度,所述測量標識物升起高度通過所述位移感測器獲取 並將該高度數據傳輸給數據處理系統。 又 -種優選技術方案,其概在於:所職_量儀的光轴與 所述測量標識物軸線之間的夾角在15。到70。之間。 種優^技術方案,其特徵在於:所述步驟(2)中所述、、杳声 的厚度測量賴的圖像測量儀和所述轉⑷巾所缝層上表面 位置高度測量所用圖像測量儀為同一台圖像測量儀或分別各用一 台圖像測量儀。 本發明的測量過程是:測量標識物在升降機構的帶動下鉛直 7 201028670 插入到熔融金屬中,測量標識物被插入部分报快會達到或者接近 溶融液體與其上渣層的温度分佈升降機構帶動測量標識物 升起,升起高度超過渣層的厚度;圖像測量儀分聰集測量標識 物插入溶融金屬時它與逢層上表面交界處的圖像和測量標識物從 溶融金屬中拔出部分的熱圖像,之後,升降機構又將測量標識物 熔融金屬中等待下一次升起;數據處理系統對圖像測量儀採 集_像資訊進行分析計算,並根據縣金屬、歸及其上方空 乳—種不_質喻直方向的温度分佈不同,即根據測量標識物 在,融液體與渣層和紗與其上方空氣環境分界面處溫度梯度最 ^ U 77別得聰融液體與賴的分界面位置高度和渣層 與空氣環境的分界面位置高度,兩個分界面的位置高度之差即為 二曰的厚度再娜所述的兩個分界面的位置高度和測量標識物 的升起高度計算得到熔融金屬的液位高度。 ❹ 豸可以從圖像測量儀連續攝取的測量標識物在插入狀態與熔 2屬逢層上表蚊界處賴像,確定較界處的位置高度,依 古^置间度和上述已確定的造層厚度連續得到炼融金屬的液位 底部二、、準確f里液位而度,麵量進行之前,首先要確定容器 底量裝置巾的參考高度,其方式為:直接測量空容器 哭底面Γ參考高度,或通過升降機構帶動測量標識物下降與容 :底面接_的轉量計算料細㈣的料高度,或事先已 201028670 所述圖像測量儀採用攝像機,它的光轴的安裝方位與測量標 識物轴向夾角大小對測量系統的解析度影響較大,夾角越小解析 度越低,反之,夹角越大解析度越高,但測量標識物的成像範圍 變小;作為優選實施例所述的夾角在15。到70。之間。 為適用惡劣的現場環境圖像測量儀帶有防塵、防熱保護罩, 保證它穩定可靠的工作。 組成測量標識物材料的導熱係數和幾何尺寸決定測量標識物 ® 插入溶融金屬中的感溫速度和從炫融金屬中拔出時的散熱速度, 感溫慢會使測量週期變長,散熱快會使測量標識物拔起時熔融液 體與〉查層的溫度界限分辨不清而無法測量。因此,本發明的測量 標識物為由鎂碳,或鋁碳,或鎂碳锆,或鋁碳鍅高溫耐火材料或 溶點大於80(TC的金屬材料組成的棒狀、管狀,或條狀物,其總長 度大於渣層厚度100_以上。 0 所_校正標_來校正圖侧量麵·標齡的位置變 動k成的測1誤差。實際顧中’圖像測量儀和測量標識物· 相對位Μ射能會發生變化,若翻預先設定的相對位置關係 數據液位,則會^來#异誤差。故在圖像測量儀視野内安裝 校正標識’它是位於升降機構上、或測量標識物未浸入溶融金屬 的部^上,或熔融金屬容II上部或内部,或獨立於錄金屬容器 和測量裝置之外馳圖像測量儀制並定位的—個或多個特徵標 記。當圖像測量儀和測量標識物之間相對位置關係發生變化後, 在圖像測量儀視野中的校正標賴位置和形狀會發生變化,從圖 9 201028670 像測量儀檢顺正標制這錢化,純置座_化 變化、方向變化、尺寸變化,便可計算得到圖 糾= 識物的真實相對位置關係。 、里 渴里標 下面通過附圖和具體實施方式對本發明作進— 意味著對本發明保護範圍的限制。 ,# —不 【實施方式】 Φ Ο 為使貴審查委員能進一步瞭解本發明之 其他目的’玆以如后之較佳實施例附以圖式詳細說日=后特= 圖例所說明之實施例係供說明之用, 制者。 生,丨土_ 勺寻利申睛上之唯一限 意圖如第1圖所示’係本發明綱量裝置實施例之—的結構示 實施例1 本發明熔融金屬液位測量裝置包括: 標識物⑻賴識物上的金屬職成喊二’測量 降機構⑴,位移_(11)和數據處理系、_。在本= 靶例中,升降機構(1)安裝在熔融金屬容养 只 量標識物⑹通過固定裝置⑶垂吊在升°降1側壁上’測 ⑵的橫臂上,由升降機構⑴帶動上下’ β的支撐架 插入溶融金屬⑻或從中升起;位移感測器(3=^6) 物⑻的聽高度,並_給數據處理系統⑷二 的权正標識(7)固定在測量標識物(6) 衣衣成 久入溶融金屬的部分, 10 201028670 用於校正圖像測量儀(5)或測量標識物(6)的相對位置變化; 圖像測量儀(5)安裝在升降機構⑴的支撐架⑵的橫臂上, 測量標識物⑻從縣金屬⑻巾拔出部分和金屬環製成的校 正標識(7)同時處於圖像測量儀(5)的視場内。 根據本發明的溫度測量裝置運行如下: 驅動升降機構⑴帶動測量標識物⑻下降插入溶融金屬 令,當測量標識物(6)達到或接近熔融金屬(9)和渣層⑻的 溫度分佈後,升降機構⑴帶動測雜識物⑷迅速升起,升 起高歧過料⑻的厚度,位減 (11)獲取測量標識物 升起高度,並將高度歸傳給數據處_統⑷。圖像測量儀⑸ 採集測量標識物(6)從炫融金屬拔起部分的熱圖像並將圖像資訊 傳給數據處理祕⑷。之後,鱗觸⑴又迅速的將測量 標識物⑻插人綠金屬中。數據處理系統⑷分析計算所採 ❹ 集的圖像資訊,並確定出測量標識物⑻升起時溶融液體⑻ 與澄層⑻和渣層與其上方空蚊界_位置高度,進而得到清 層⑻的厚度;再根據圖像測量儀⑸連續攝取的插入溶融金 屬中的測量標識物⑻或關金屬容器⑽的内壁面與逢層⑻ 上表面交界處圖像,分析計算出該交界處的位置高度,再基於該 2置高度和上述求得的渣層厚度或測量標識物升起時炫融金屬與 二層分界面驗置高度和輯與空_境的分界面位置高度連續 獲得熔融金屬的液位高度。 、 在本實施例中’圖像測量儀⑸為面陣ccd圖像測量儀;該 11 201028670 圖像測量儀(5)的光轴與測量標識物(6)的軸向夾角為2Γ46,; 圖像測量儀(5)帶有防塵、防熱保護罩,以保證在高溫、濃粉塵 現場環境下可靠的工作。 在本實施例中,所述位移感測器(11)採用安裝在升降機構 中的拉桿式位移感測器。 在本發明的另—個實施例中,所述位移感測器(11)為光電 編碼器。 在本貝施例中’利用專利號為00120354· 1的中國發明專利中 披露的鋼水連續測溫管兼作測量標識物,它是由鋁碳材料組成的 —端開口—端封閉的空芯雙層套管,其導熱係數為8. 7W/ (πι·κ), 外fe為85mm。 、,,在本發明的另一個實施例中,所述的測量標識物為由鎂碳材 料製成的下端為圓錐形的棒狀物,其直徑為40mm。 實施例2No, the financial technology can not (4) the thicker thickness of the slag layer of the slag layer. The method of providing and measuring the amount of the smelting metal table _ layer thickness into the alcohol market is a technical problem that needs to be solved in the technical field. SUMMARY OF THE INVENTION The object of the present invention is to overcome the deficiencies of the prior art and to provide a device capable of measuring the thickness of a metal wire and entering a liquid level in an alcohol county. For the purpose of the above-mentioned purpose, the invention provides a liquid metal level measuring device according to the present invention, which is characterized in that it comprises a side measuring instrument, a measuring marker, a lifting mechanism, a displacement sensing n, a processing secret and a correction marking. The measuring instrument is mounted on the lifting mechanism to stand on the lifting mechanism; the image measuring device is reduced in the angle between the optical axis of the measuring instrument and the side marker, and the reward indicator is mounted on the lifting mechanism. Or independently of the lifting mechanism, the measurement marker is within a field of view of the image measuring instrument; the data processing system is respectively associated with the image measuring instrument, the displacement sensor, and the lifting The mechanism is connected; the lifting mechanism is mounted on the molten metal container or independently of the molten metal container. A preferred technical solution is characterized in that: the lifting mechanism comprises a lifting device 201028670 moving device, a material guide connected to the training device, a connection with the lifting guide, and the shredding The connected mosquito device is connected to the support frame of the crane by the wire-riding device. a preferred technical solution, characterized in that: the measurement marker is a rod-shaped or tubular shape composed of a town carbon, or a carbon, or a magnesium carbon, or a high-temperature refractory or a metal material having a bright point. Or a strip, the total length of the measurement marker is greater than the thickness of the slag layer by more than 10 mm. A preferred technical solution is characterized in that the amount of the marker is doubled by the continuous temperature measuring tube of molten steel. Θ A preferred technical solution' is characterized in that: the ship's molten metal level measuring device is provided with a calibration mark, and the position is marked as a ring having a thickness of less than 5G mm, a height greater than 1 wire and less than a millimeter, or a length a rod-shaped, tubular, or strip having a diameter greater than or equal to a millimeter and an equivalent diameter greater than 2 millimeters smaller than the filament; the calibration indicating that the carbon, magnesium carbon, slag, magnesium-carbon-wound material is refractory or achievable is greater than _ a correction indicator located on the lifting mechanism, the quantity identifier is not immersed in the upper portion of the upper portion of the molten metal portion or (4), or is independent of the shaft metal container and the measuring rod, and can be recognized by the image measuring instrument and The location of the location. A preferred technical solution is characterized in that: the displacement sense is described as a lifting mechanism tree connection; the position sense_ is a tie rod type, or a _ type, a resistance conversion type, or a photoelectric encoder displacement feeling, or a figure Like displacement sensing crying. A preferred embodiment is characterized in that the angle formed by the wire of the image measuring instrument and the axis of the measuring marker of 5 201028670 is 15. To 70. between. A preferred technical solution is characterized in that the image grain meter is a line, area or single point scanning camera or a thermal imager. The technical solution of the invention is characterized in that the image measuring instrument has a dustproof and heatproof protective cover. Another object of the present invention is to provide a method for measuring the thickness of a molten metal surface and thereby accurately measuring the molten metal level. The above object of the present invention is achieved by the following technical solutions. A method for measuring molten metal level, the steps of which are as follows: (1) Providing a seed metal liquid level measuring device, which comprises: an image remnant/representing object, a lifting mechanism, a displacement sensor, a data processing system and a calibration, wherein the image is mounted on the lifting mechanism; the image and the optical axis of the device are aligned with the axis of the marker, and the measurement identifier The object is mounted on the lift structure or independent of the lifting mechanism, and the reward mark is within the field of view of the image measuring instrument; the data processing system is respectively shouldered with the image. The instrument, the displacement sense and the lifting mechanism are connected, the lifting mechanism is mounted on the molten metal container or independent of the molten metal container; (2) the lifting mechanism drives the measuring marker to drop into the molten metal After measuring the temperature of the 'identification' at or near the temperature distribution of the molten metal and the slag layer, the lifting mechanism rapidly releases the _ mark object, and raises the height of the super-layer layer; Volume marker rises a fine image of the minute; the data processing system analyzes and calculates the thermal image information according to the maximum local temperature gradient of the measured marker in the molten liquid and the slag layer and the slag layer and the air 6 201028670; The height of the interface between the liquid contact layer and the slag layer and the air above it is respectively observed, and the difference between the heights of the two interface positions is the thickness of the layer; (3) the bottom of the wire H is in the liquid side device The reference height is determined by directly measuring the tolerance of the bottom surface of the container by directly measuring the volume of the container, the reference height of the container, and the amount of movement of the container when the amount of the marker is lowered. ^ ^ ❹. (4) Re-reduction of the image of the measuring object of the Lai County secret person hiding face towel or the intersection of the inner wall surface of the molten metal container and the upper surface of the slag layer, and analyzing and calculating the position height of the junction; ^ ( 5) determining the liquid level of the molten metal based on the height of the position obtained in the step (4) and the thickness of the slag layer obtained in the step (2), or the height of the molten liquid and the position of the slag layer after the rising of the measurement mark by the ingestion And measuring the raised height of the marker to obtain a liquid level of the molten metal, the measured marker raised height being acquired by the displacement sensor and transmitting the height data to the data processing system. A preferred technical solution is characterized in that the angle between the optical axis of the measuring instrument and the axis of the measuring marker is 15. To 70. between. The technical solution is characterized in that: in the step (2), the image measuring instrument for measuring the thickness of the upper surface of the squeaking thickness measurement and the image measurement for measuring the height of the upper surface of the seam layer of the rotating (4) towel The instrument is the same image measuring instrument or one image measuring instrument. The measuring process of the invention is: the measuring marker is driven by the lifting mechanism, the vertical 7 201028670 is inserted into the molten metal, and the measuring marker is inserted into the portion to reach or approach the temperature distribution of the molten liquid and the upper slag layer to drive the measurement. The marker rises and rises above the thickness of the slag layer; the image measuring instrument separates the image from the molten metal when the marker is inserted into the molten metal and the image at the interface with the upper surface of the surface. After the thermal image, the lifting mechanism will again measure the molten metal in the marker and wait for the next rise; the data processing system analyzes and calculates the image of the image measuring instrument, and according to the county metal, the empty milk above it - The temperature distribution in the straight direction is different, that is, according to the measurement marker, the temperature gradient at the interface between the molten liquid and the slag layer and the air environment above the yarn is the most suitable for the interface between the liquid and the liquid. The height of the position and the height of the interface between the slag layer and the air environment, and the difference between the heights of the two interfaces is the thickness of the two ridges. Calculating the position and height of the raised height of the interface identifier measuring the liquid level of the molten metal obtained. ❹ 测量 The measurement mark that can be continuously taken from the image measuring instrument in the inserted state and the surface of the mosquitoes on the fused layer 2, determine the height of the position at the boundary, and the determined degree and the above determined The thickness of the layer is continuously obtained from the bottom of the liquid level of the smelting metal. Secondly, the liquid level of the liquid level is accurate. Before the surface quantity is carried out, the reference height of the container towel is first determined. The method is as follows: directly measuring the bottom surface of the empty container ΓReference height, or the measuring object is lowered by the lifting mechanism: the amount of rotation of the bottom surface is calculated as the material height of the material (4), or the image measuring instrument used in 201028670 adopts the camera, and its optical axis is mounted. The axial angle with the measurement marker has a great influence on the resolution of the measurement system. The smaller the angle is, the lower the resolution is. On the contrary, the larger the angle is, the higher the resolution is, but the imaging range of the measurement marker becomes smaller; The angle shown in the example is 15. To 70. between. For the application of harsh field environment image measuring instrument with dustproof and heat-proof protective cover to ensure its stable and reliable work. The thermal conductivity and geometry of the material that makes up the measurement marker determine the temperature sensitivity of the measurement marker® inserted into the molten metal and the heat dissipation rate when it is pulled out of the molten metal. The slow temperature will make the measurement cycle longer and the heat dissipation will be faster. When the measurement marker is pulled up, the temperature limit of the molten liquid and the layer to be examined is unclear and cannot be measured. Therefore, the measurement marker of the present invention is a rod, tube, or strip composed of magnesium carbon, or aluminum carbon, or magnesium carbon zirconium, or aluminum carbon tantalum high temperature refractory or a metal material having a melting point greater than 80 (TC). The total length is greater than the thickness of the slag layer by 100_. 0 _ calibrated _ to correct the position error of the side of the figure and the change of the position of the aging age k. The actual Gu Zhong 'image measuring instrument and measurement marker · The relative position of the radiant energy will change. If the preset relative positional relationship data level is turned over, the error will be generated. Therefore, the calibration mark is installed in the field of view of the image measuring instrument. It is located on the lifting mechanism or measured. The marker is not immersed in the portion of the molten metal, or the upper or the inside of the molten metal container II, or one or more characteristic marks made by the image measuring instrument independently of the recording metal container and the measuring device. After the relative positional relationship between the measuring instrument and the measuring marker changes, the position and shape of the calibration mark in the field of view of the image measuring instrument will change. From Fig. 9 201028670, the measuring instrument is checked and the standard is corrected. Pure seat _ change, The change of the size and the change of the size can be used to calculate the true relative positional relationship of the figure. The following is a description of the invention through the drawings and the specific embodiments - meaning the limitation of the scope of the invention. — 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 实施 。 For the purpose of explanation, the manufacturer. The raw material of the invention is shown in the first embodiment of the present invention. The position measuring device comprises: a marker (8) a metal member on the sacred object, a second measurement measuring mechanism (1), a displacement _(11) and a data processing system, _. In the target example, the lifting mechanism (1) is installed at The molten metal holding only indicator (6) is hung on the cross arm of the measuring (2) on the side wall of the rising and falling 1 by the fixing device (3), and the lifting frame (1) drives the upper and lower 'β supporting frame to insert or rise from the molten metal (8); Displacement sensor (3=^6) Listening height, and _ to the data processing system (4) two right positive identification (7) fixed in the measurement marker (6) clothing into a part of the molten metal, 10 201028670 for the correction of image measuring instrument (5) or Measuring the relative position change of the marker (6); the image measuring instrument (5) is mounted on the cross arm of the support frame (2) of the lifting mechanism (1), and the measuring marker (8) is made of the metal (8) towel extracting portion and the metal ring The calibration mark (7) is simultaneously in the field of view of the image measuring instrument (5). The temperature measuring device according to the invention operates as follows: The driving lifting mechanism (1) drives the measuring marker (8) to drop the molten metal order, when measuring the marker (6) After reaching or approaching the temperature distribution of the molten metal (9) and the slag layer (8), the lifting mechanism (1) drives the measurement of the hybrid (4) to rise rapidly, raising the thickness of the high-crossing material (8), and reducing the position (11) to obtain the measurement mark rises. Height, and pass the height to the data department (4). The image measuring instrument (5) collects the measurement mark (6) to extract a part of the thermal image from the sleek metal and transmits the image information to the data processing secret (4). After that, the scale touch (1) quickly inserts the measurement marker (8) into the green metal. The data processing system (4) analyzes and calculates the image information of the collected image, and determines the height of the molten liquid (8) and the layer (8) and the slag layer above the measured marker (8), and then obtains the clear layer (8). Thickness; according to the image of the measurement mark (8) inserted into the molten metal continuously taken by the image measuring instrument (5) or the image of the boundary between the inner wall surface of the metal container (10) and the upper surface of the surface layer (8), the position height of the boundary is analyzed and calculated. Further, based on the height of the 2 sets and the thickness of the slag layer or the rise of the measured mark, the level of the molten metal and the interface of the second layer and the position of the interface of the space and the space are continuously obtained to obtain the level of the molten metal. height. In the present embodiment, the 'image measuring instrument (5) is an area array ccd image measuring instrument; the axial angle between the optical axis of the 11 201028670 image measuring instrument (5) and the measuring marker (6) is 2Γ46; The measuring instrument (5) is equipped with a dustproof and heat-proof protective cover to ensure reliable operation in a high-temperature, dense dust field environment. In the present embodiment, the displacement sensor (11) employs a rod type displacement sensor mounted in the elevating mechanism. In another embodiment of the invention, the displacement sensor (11) is a photoelectric encoder. In the case of Benbe, the continuous temperature measuring tube for molten steel disclosed in the Chinese invention patent No. 00120354·1 is also used as a measuring marker. It is composed of aluminum carbon material—end opening—end closed air core double The layer sleeve has a thermal conductivity of 8. 7 W / (πι·κ) and an outer fe of 85 mm. Further, in another embodiment of the invention, the measurement marker is a rod made of a magnesium carbon material and having a conical shape at a lower end, and has a diameter of 40 mm. Example 2

、林發明實施例中升降機構⑴固定在溶融金屬容器(ι〇) 的上,上,對於躲金屬容器側壁沒有安裝條件又帶有上蓋的或 ^有物麵樹蝴。糊像測=儀為 二點純搞像機。圖_絲⑸的光軸麵量標識 3向夹角為15。。所述校正標識為厚度大於^毫米小於50毫米、 冋度大於1毫米小於1〇〇毫 、 實施例3 城物。其他與實施船相同。 在本發明實施例中升降機 構(1)安裝在獨立於熔融金屬容In the embodiment of the invention, the lifting mechanism (1) is fixed on the molten metal container (1), and has no upper mounting condition or a covering surface for the side wall of the metal hiding container. Paste image test = instrument is a two-point pure machine. The optical axis surface of the figure _ wire (5) is marked with an angle of 15 in the 3 direction. . The correction mark is a thickness greater than ^mm and less than 50 mm, and a twist is greater than 1 mm and less than 1 〇〇, the embodiment 3 embodiment. Others are the same as the implementation ship. In the embodiment of the invention, the elevator (1) is installed independently of the molten metal volume.

12 201028670 (〇)的其他位置^對於熔融金屬容器上沒有安裝條件時可優選 此女裝方式。所麵像測量儀為鱗掃描式攝像機。圖像測量儀 ()的光軸與測里標識物⑻的轴向夾角為初。。所述校正標識 為長度大於10絲小於應絲、f效直徑大於2毫米小於· 毫米的棒狀、管狀_狀物。其他與實施例丨相同。 實施例4 目$本彳x明又—個貫施例的安裝結構^意圖。其它與實施 i綱不同之處在於:校正標識⑺是懸挂卜在升降機構⑴ 的支撐架⑵橫臂上的爐,並處於圖像測量儀⑸的視場範 圍内。所述圖像測量儀為熱像儀。 在本實施辦’縣金屬為鋼水,歸為賴紗覆蓋劑, 容器為連鑄中間包。 工業應用性: ❹ 本發_技縣是’由財發·關量觀物穿過渣層 、熔融走屬胃測里標識物從溶融金屬中升起後其熱圖像帶有 j的厚度資訊,從而可以較渣層厚度,進而準雜測量炫融 金屬液位。 斤述本發明確霄可達到上述諸項功能及 作應符合翻料縣,纽妹㈣請。 本幻 【圖式簡單說明】 第—圖係本發雜蝴量打實補之-的結構示意圖。 第二圖係本發_液位_裝置另—實施觸結構示意圖。 13 201028670 【主要元件符號說明】 (1) 升降機構 (2) 支撐架 (3) 固定裝置 (4) 數據處理系統 (5) 圖像測量儀 (6) 測量標識物 〇 (7)校正標識 (8) 渣層 (9) 熔融金屬 (10) 熔融金屬容器 (11) 位移感測器12 201028670 (〇) Other locations ^ This is the preferred method for women who do not have mounting conditions on the molten metal container. The image measuring instrument is a scale scanning camera. The axial angle between the optical axis of the image measuring instrument () and the inner marker (8) is initial. . The calibration mark is a rod-shaped or tubular shape having a length greater than 10 filaments smaller than the yarn, and an f-effect diameter greater than 2 mm and less than mm. Others are the same as the embodiment. Embodiment 4 The purpose of the installation structure is as follows. The other difference from the implementation is that the correction mark (7) is a furnace suspended on the cross arm of the support frame (2) of the lifting mechanism (1) and is within the field of view of the image measuring instrument (5). The image measuring instrument is a thermal imager. In this implementation office, the county metal is molten steel, which is classified as a lai yarn covering agent, and the container is a continuous casting tundish. Industrial Applicability: ❹ This issue _Technical County is the thickness information of the thermal image with j from the slag layer and the slag layer Therefore, the thickness of the slag layer can be compared, and the molten metal level can be measured by quasi-hybrid. It is true that the invention can achieve the above functions and should be consistent with the turning of the county, New Zealand (four) please. This illusion [Simple description of the figure] The first figure is a schematic diagram of the structure of the present. The second figure is a schematic diagram of the implementation of the touch structure of the present invention. 13 201028670 [Explanation of main component symbols] (1) Lifting mechanism (2) Support frame (3) Fixing device (4) Data processing system (5) Image measuring instrument (6) Measuring mark 〇 (7) Correction mark (8 ) Slag layer (9) Molten metal (10) Molten metal container (11) Displacement sensor

Claims (1)

201028670 七 、申請專利範圍: =-:融金屬液糊量裝置,其係包括:數圖像測量儀、一測 里私識物、一升降機構、— 移感測态、一數據處理系統和一校 而二=树物蝴_均錄升降機構; 圖像“!里儀的光軸與測量標識物轴線成 =:降機構上或獨立於所述升降機構;= 參 m場範且數據處理系統分別朗像測量儀、 立:,錢升降機構相連接;另升降機構安裝在溶融金屬容器 上或獨立於熔融金屬容器。 2、 如申請專利範圍第i項所述之炫融金屬液位測量裝置,其中, 升降機構包括-升降驅動裝置,與升降驅動裝置相連接之一升降 導執:與該升降導執相連接之—支撐架,以及與該支撐架相連接 的測量標識物之一固定裝置。 3、 如申請專利範圍第!項所述之熔融金屬液位測量裝置,其中, 測量標識物由IS碳、鎂碳、㉟祕、鎂雜材料的耐火材料或炫 點大於800〇c的金屬材料組成。 一 4、如申請專利範圍第丨項所述之熔融金屬液位測量裝置,其中 測量標識物由鋼水連續測溫管兼用。 5、如申請專利範圍第1項所述之熔融金屬液位測量裝置,其中 熔融金屬液位測量裝置設有校正標識,所述校正標識為厚产大於1 毫米小於50毫米、高度大於1毫米小於1〇〇毫米的環狀物,或早 度大於10毫米小於1500毫米、等效直徑大於2峯半1认〜乂 毛木小於2〇〇亳 15 201028670 米的棒狀、管狀、條狀物,所述校正標識由鋁碳、鎂碳、鋁碳锆、 鎂碳锆材料的耐火材料或者溶點大於·。c的金屬材料組成;所述 ,正標識位於所述升降機構上、_量標識物未浸罐融金屬的 部=上’或熔融金屬容器上部或内部,或獨立於熔融金屬容器和 測里裝置之外的能被所述圖像測量儀識別並定位的位置。 6、 如申請專利範圍第5項所述之溶融金屬祕測量裝置,其中, 位移感測器與所述升降機構相連接,而位置感測器為拉桿式、、拉 繩式、電阻變換式、光電編瑪器位移感測器或圖像位移感測器。 7、 如申請專利範圍第6項所述之熔融金屬液位測量裝置,其中, 圖像測量儀的光軸與所侧量標識物軸線之間形成的夾角在15。 至,J 7〇。之間。 8、 如申請專利翻第7項所述之關金屬液位測量裝置,其中, 圖像剛量儀為_、面陣、單點掃描式攝像機或熱像儀。 9、 如申請專纖H第8項所述之縣金屬液位測量裝置,其中, 圖像剩量儀帶有随和賴保護罩。 ^一種如申請專利範圍第W射任一項所述之炫融金屬液位測 里裝置的熔融金屬液位測量方法,其步騾如下: ⑴將所述職金屬液位測量裝置安裝在炫融金屬容器上; (=)所述升降機構帶動測量標識物下降插入縣金屬中,當測量 二物的溫度達到或接近炼融金屬和逢層的溫度分佈後,所述升 、、構迅速地V動測量標識物物,升起高度超過渣層的厚度丨 ^圖像測1儀採集測量標識物升起部分的熱圖像;所述數據處 16 201028670 理系統根據測量標識物在炫 的八辰^ ^、 射相及朗與其上方空氣 ^ "卩酿度梯度最Ait—特點騎述料目像資訊進行 分析計算,相得聰融液麻 /,、_貞訊進订 分只H,查層和絲與其上方空氣之間的 (3 ^ 個分介面位置高度之差即為朗的厚度; )確〜减部在液位測量裝置中的參考高度,其確定方式 為.通過直接測量容器底面的灸 量標識物下_容哭底面接 ^ ’或通過騎機構帶動測 參度,或事先已知; 時的移動量計算容器底面的參考高 像㈣儀連觀麵插人驗金射_量標識物 或溶^屬各器_壁面與渣層上表面交界處圖像,分析計算出 5亥父界處的位置局度; (5)基於步驟(4)所得刭的办g 的位置〶度和步驟⑵所得的渣層厚 度求得熔融金屬的液位高度,或通過攝取測量標識物升起後並上 φ 的溶融金屬與逢層位置高度及測量標識物升起高度獲得溶融金屬 的液位所述測量標識物升起高度通過所述位移感測器獲取 ϋ將該向度資料傳輸給數據處理系統。 Η、如申請專利範圍第Η)項所述之溶融金屬液位測量方法,其中, 圖像刺量儀的光軸與所述測量標識物軸線之間的夹角在b。到兀。 之間。 12、如申請專利範圍第11項所述之炫融金屬液位測量方法,立中, #驟⑺中所述渔層的厚度測量所用_像測量儀和所述步驟⑷ 中所述淺層上表面位置高度測量所用圖像騎儀為同一台圖像測 17 201028670 量儀或分別各用一台圖像測量儀。201028670 VII. Patent application scope: =-: melt metal liquid paste device, which includes: digital image measuring instrument, a self-identification object, a lifting mechanism, a shift sensing state, a data processing system and a School and two = tree butterfly _ all recorded lifting mechanism; image "! The optical axis of the instrument and the measuring marker axis = = down or independent of the lifting mechanism; = □ m field and data processing The system is respectively connected to the measuring instrument, the vertical:, the money lifting mechanism is connected; the lifting mechanism is installed on the molten metal container or is independent of the molten metal container. 2. The liquid level measurement of the molten metal as described in the scope of claim patent item i The device, wherein the lifting mechanism comprises a lifting drive device, and a lifting guide connected to the lifting driving device: a supporting frame connected to the lifting guide, and one of the measuring markers connected to the supporting frame is fixed 3. The molten metal liquid level measuring device according to the scope of the patent application, wherein the measuring mark is made of refractory material of IS carbon, magnesium carbon, 35 secret, magnesium material or dazzle point greater than 800 〇c. gold The composition of the material is as follows: 1. The molten metal level measuring device according to the scope of the patent application, wherein the measuring marker is used by the continuous measuring tube of molten steel. 5. The melting as described in claim 1 a metal level measuring device, wherein the molten metal level measuring device is provided with a calibration mark, which is a ring having a thickness of more than 1 mm and less than 50 mm and a height of more than 1 mm and less than 1 mm, or an early value greater than 10 mm less than 1500 mm, equivalent diameter greater than 2 peaks and a half 1 乂 ~ 乂 小于 wood less than 2 〇〇亳 15 201028670 meters of rods, tubes, strips, the correction mark from aluminum carbon, magnesium carbon, aluminum carbon a refractory material of zirconium, magnesium carbon zirconium material or a metal material having a melting point greater than · c; said, positively marking the portion of the lifting mechanism that is not impregnated with the metal in the lifting mechanism or the molten metal The upper or inner portion of the container, or a position other than the molten metal container and the metering device that can be identified and positioned by the image measuring instrument. 6. The molten metal secret measuring device according to claim 5, Wherein, the displacement sensor is connected to the lifting mechanism, and the position sensor is a pull rod type, a drawstring type, a resistance conversion type, an optoelectronic coder displacement sensor or an image displacement sensor. The molten metal level measuring device according to claim 6, wherein an angle formed between an optical axis of the image measuring instrument and an axis of the side marker is between 15 and J 7 . 8. If the patent application is turned over, the metal level measuring device described in Item 7 is used, wherein the image measuring instrument is _, area array, single-point scanning camera or thermal imager. 9. If applying for special fiber H The metal level measuring device of the county described in the eighth item, wherein the image remnant meter is provided with an easy-protecting protective cover. ^ A method for measuring the molten metal level measuring device according to any one of the claims The method for measuring the molten metal level is as follows: (1) mounting the metal level measuring device on the sleek metal container; (=) the lifting mechanism drives the measuring object to drop into the county metal, when measuring two The temperature of the material reaches or approaches the temperature of the smelting metal and the layer After the distribution, the rising and lowering structures rapidly measure the object, and the rising height exceeds the thickness of the slag layer. The image measuring instrument collects the thermal image of the rising portion of the measuring marker; the data portion 16 201028670 The system is based on the measurement of the identification in the Hyun's Bachen ^ ^, the shooting phase and the Lang and the above air ^ " the degree of the most Ait - characteristics of the riding material information analysis and calculation, Xiang Congrong liquid hemp / ,, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The height is determined by directly measuring the moxibustion mark on the bottom surface of the container, or by using the riding mechanism to drive the measured parameter, or knowing in advance; the amount of movement to calculate the reference height image of the bottom surface of the container. (4) Inspecting the face of the instrument and checking the gold shot _ quantity marker or the image of the upper surface of the slag layer and the surface of the slag layer, and analyzing and calculating the position of the 5 hai parent boundary; (5) based on the steps (4) The position of the obtained 刭 g and the step (2) The thickness of the layer is determined by the layer thickness, or the level of the molten metal is obtained by taking up the measured marker and raising the molten metal of the φ and the height of the layer and the height of the measured marker. The height is acquired by the displacement sensor and transmitted to the data processing system. The method for measuring a molten metal level according to the above-mentioned claim, wherein the angle between the optical axis of the image stick and the axis of the measuring marker is b. Come to 兀. between. 12. The method for measuring the liquid level of the molten metal according to claim 11 of the patent application scope, the thickness measuring of the fish layer in the center, # (7), and the shallow measuring layer in the step (4) The image riding height used for the surface position height measurement is the same image measurement 17 201028670 gauge or one image measuring instrument. 1818
TW98102635A 2009-01-22 2009-01-22 Measurement apparatus for liquid level of molten metal and the measurement method thereof TW201028670A (en)

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