TWI415945B - A method of utilizing the resource of converter slag with dry grinding and speedy stabilization - Google Patents
A method of utilizing the resource of converter slag with dry grinding and speedy stabilization Download PDFInfo
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- TWI415945B TWI415945B TW98113578A TW98113578A TWI415945B TW I415945 B TWI415945 B TW I415945B TW 98113578 A TW98113578 A TW 98113578A TW 98113578 A TW98113578 A TW 98113578A TW I415945 B TWI415945 B TW I415945B
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- converter slag
- grinding
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- 239000002893 slag Substances 0.000 title claims abstract description 87
- 230000006641 stabilisation Effects 0.000 title claims abstract description 58
- 238000011105 stabilization Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000009837 dry grinding Methods 0.000 title claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 14
- 238000007885 magnetic separation Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 10
- 238000009628 steelmaking Methods 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000007873 sieving Methods 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims description 4
- 238000003672 processing method Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000003756 stirring Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000008188 pellet Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 239000000292 calcium oxide Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
本發明是關於一種轉爐渣資源化處理方法，特別是一種乾磨式快速安定化之轉爐渣資源化處理方法。The invention relates to a converter slag resource treatment method, in particular to a dry mill type rapid stabilization converter slag resource treatment method.
轉爐渣是由多種礦物組成的固熔體，其內成份具有不穩定性之物質，其中，以游離氧化鈣(f-CaO)及游離氧化鎂(f-MgO)水化後產生氫氧化鈣及氫氧化鎂會伴隨著大量體積膨脹，當然含有游離氧化鈣(f-CaO)及游離氧化鎂(f-MgO)的轉爐渣是處於不穩定性狀態，只有當游離氧化鈣(f-CaO)、游離氧化鎂(f-MgO)水化消解完成時才會穩定。Converter slag is a solid solution composed of various minerals, and its internal components are unstable. Among them, calcium hydrate is produced by hydration of free calcium oxide (f-CaO) and free magnesium oxide (f-MgO). Magnesium hydroxide is accompanied by a large volume expansion, of course, the converter slag containing free calcium oxide (f-CaO) and free magnesium oxide (f-MgO) is in an unstable state, only when free calcium oxide (f-CaO), Free magnesium oxide (f-MgO) is stable when it is hydrated and digested.
因此，習知轉爐渣出場後，先行放置於推渣場並進行灑水作業，以使該轉爐渣產生安定化反應，即待f-CaO、f-MgO完全水化消解後，再做其他用途，惟，此方法其安定化處理時間是非常冗長，且推置於推渣場底層或內部之轉爐渣仍無法接觸至該水氣，造成無法有效控管安定化時間外，並於處理過程需具備龐大的土地與水資源，如此耗時耗成本卻又無法完全將該轉爐渣進行完全安定化，相當不經濟。Therefore, after the converter slag is put into the field, it is placed in the slag yard and sprinkled, so that the converter slag can be stabilized, that is, after f-CaO and f-MgO are completely hydrated and dissolved, and then used for other purposes. However, the stabilization time of this method is very lengthy, and the converter slag pushed to the bottom or inside of the slag yard still cannot contact the water vapor, which makes it impossible to effectively control the stability time of the tube, and needs to be processed during the process. It is quite uneconomical to have a large amount of land and water resources, which is time-consuming and cost-intensive, but it is impossible to completely complete the converter slag.
參閱圖1，習知另一種轉爐渣資源化處理方法，其包含有一備料步驟11，一破碎磁選步驟12，一研磨步驟13，一烘乾步驟14及一出料步驟15；其中，該備料步驟11係備置有一未安定化之塊狀轉爐渣，而後將該塊狀轉爐渣置放入一破碎機進行破碎作業，以便篩選出不同粒徑大小規格之轉爐渣，而對於粒徑較小之轉爐渣，即再進入一磁選機將轉爐渣內所含之金屬成分予以去除(即破碎磁選步驟12)，而後再將前述所得之轉爐渣混合特定比例的安定化助劑131，並置入具有攪磨機反應槽內進行攪拌及研磨動作，以使該轉爐渣其內所含之游離氧化鈣(f-CaO)，游離氧化鎂(f-MgO)與所產生的熱能及該安定化助劑131反應，以形成安定化的碳酸鈣(CaCO3 )、碳酸鎂(MgCO3 )沉澱與氫氧化鈉(NaOH)，使該轉爐渣於研磨成粉狀之過程中一併完成安定化反應(即研磨步驟13)，而後再將該設備輸入一烘乾裝置，以便將該安定化助劑131所產生之水氣予以去除(即烘乾步驟14)，最後將上述烘乾裝置烘乾過後之粉狀轉爐渣進行包裝出貨(即出料步驟15)。Referring to FIG. 1 , another method for recycling a converter slag includes a preparation step 11, a crushing magnetic separation step 12, a grinding step 13, a drying step 14 and a discharging step 15; wherein the preparing step The 11 series is provided with an unstabilized block converter slag, and then the block converter slag is placed in a crusher for crushing operation, so as to screen out converter slag of different particle size and size, and for the smaller particle size The slag, that is, enters a magnetic separator to remove the metal components contained in the converter slag (ie, the magnetic separation step 12), and then mixes the converter slag obtained in the foregoing with a specific proportion of the stabilization aid 131, and puts it into the slag. Stirring and grinding operation in the mill reaction tank to make the free calcium oxide (f-CaO), free magnesium oxide (f-MgO) contained in the converter slag and the generated heat energy and the stabilization aid 131 Reacting to form stabilized calcium carbonate (CaCO 3 ), magnesium carbonate (MgCO 3 ) precipitation and sodium hydroxide (NaOH), so that the converter slag is completely ground during the grinding process (ie grinding) Step 13), and then lose the device a drying device for removing the moisture generated by the stabilization aid 131 (ie, drying step 14), and finally discharging the powdered converter slag after drying the drying device for packaging and discharging (ie, discharging) Step 15).
然，實際使用後發現，前述轉爐渣資源化處理方法為有如下之缺失，茲詳述如下：However, after actual use, it was found that the above-mentioned converter slag resource treatment method has the following defects, which are detailed as follows:
1.鑒於研磨步驟13中，必須加入一定比例之安定化助劑後131，除造成費用成本的提高外，且加入安定化助劑並需經由一段時間的攪拌動作才可使該安定化助劑131與該轉爐渣均勻混合，更容易造成處理時間的拉長，作業效率的降低。。1. In view of the grinding step 13, it is necessary to add a certain proportion of the stabilizer to improve the cost, in addition to the cost increase, and the addition of the stabilizer can be achieved through a period of stirring action. The 131 is uniformly mixed with the converter slag, which is more likely to cause an increase in processing time and a decrease in work efficiency. .
2.仍續前述，由於該安定化助劑131之影響，其研磨過後之粉狀爐渣通常含水量過高，因此必須還要額外增加一道烘乾步驟14，如此反而會造成作業時間的拉長，同時烘乾過程必須燃燒燃料以產生熱能，除更加造成成本上的增加、能源的浪費外，且燃燒燃料又會造成大量二氧化碳排放，也將造成環境的威脅，更不符合節能減碳之經濟效益。2. Continuing the foregoing, due to the influence of the stabilization aid 131, the powdered slag after grinding usually has a high water content, so an additional drying step 14 must be added, which may cause an extension of the working time. At the same time, the drying process must burn fuel to generate heat energy, in addition to causing cost increase and energy waste, and burning fuel will cause a large amount of carbon dioxide emissions, which will also cause environmental threats, and will not meet the economy of energy saving and carbon reduction. benefit.
因此，本發明之目的，是在提供一種乾磨式快速安定化之轉爐渣資源化處理方法，除可有效縮短作業時間，以降低作業成本外，同時兼具環保且低耗能之節能減碳功效。Therefore, the object of the present invention is to provide a dry grinding type rapid stabilization converter slag resource treatment method, which can effectively shorten the operation time and reduce the operation cost, and at the same time, has environmental protection and low energy consumption, energy saving and carbon reduction. efficacy.
於是，本發明乾磨式快速安定化之轉爐渣資源化處理方法，其依序包含有備料步驟、研磨安定化步驟及出料步驟；其中，該備料步驟中經未安定化之轉爐渣直接進形研磨(即研磨安定化步驟)，且將該轉爐渣研磨呈顆粒之粉狀，同時於研磨過程中再加入一蒸氣，以利用該蒸氣促使該轉爐渣產生安定化反應，以形成一可再利用且穩定之粉狀爐石；是以，利用該蒸氣中所含之熱能與水氣，使該轉爐渣於研磨過程中，快速進行安定化反應，除可有效縮短安定化作業時間、降低作業成本外，同時兼具環保且低耗能之節能減碳功效。Therefore, the dry-grinding and rapid-reforming converter slag resource processing method of the present invention comprises a preparation step, a grinding stabilization step and a discharging step in sequence; wherein the unsteading converter slag directly enters in the preparing step Shape grinding (ie, grinding stabilization step), and grinding the converter slag into a granule powder, and adding a vapor during the grinding process to use the steam to promote the stabilization reaction of the converter slag to form a re-sizable The use and stability of the powdered hearthstone is to use the heat energy and moisture contained in the steam to rapidly stabilize the converter slag during the grinding process, in addition to effectively shortening the stabilization time and reducing the operation In addition to cost, it also has the energy-saving and carbon-reducing effect of environmental protection and low energy consumption.
有關本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之較佳實施例的詳細說明中，將可清楚的明白。The above and other technical contents, features, and advantages of the present invention will become apparent from the Detailed Description of the <RTIgt;
在本發明被詳細描述前，要注意的是，在以下的說明中，類似的元件是以相同的編號來表示。Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.
參閱圖2，本發明之第一較佳實施例，本實施例乾磨式快速安定化之轉爐渣資源化處理方法3主要包含有一備料步驟31、一研磨安定化步驟32及一出料步驟33；其中，該備料步驟31係備置經煉鋼處理後所產生且未經安定化之轉爐渣；另，該研磨安定化步驟32則是將前述步驟所得之該等轉爐渣進行一研磨動作，同時於研磨過程中並導入一蒸氣321，以利用該蒸氣321中所含之水氣與熱能，使該轉爐渣研磨成粉狀顆粒之過程中，利用該熱能促進該水氣與轉爐石中之游離氧化鈣(f-CaO)、游離氧化鎂(f-CaO)快速進行反應，以形成穩定性質之安定化碳酸鈣(CaCO3 )、碳酸鎂(MgCo3 )，以使該轉爐渣直接於研磨過程中完成安定化動作，當然前述該蒸氣321可使用煉鋼中所產生之廢熱蒸氣資源回收所得，所以費用成本低，亦可避免其廢熱蒸氣對環境之污染；最後，該出料步驟33係將上述步驟中安定化完成之粉狀爐石進行包裝，以供不同領域之業界進行處理運用。Referring to FIG. 2, in the first preferred embodiment of the present invention, the dry-grinding rapid stabilization converter slag resource processing method 3 mainly includes a preparation step 31, a grinding stabilization step 32 and a discharging step 33. The preparation step 31 is to prepare the converter slag which is produced after the steelmaking process and is not stabilized; and the polishing stabilization step 32 is to perform the grinding operation on the converter slag obtained in the foregoing step, During the grinding process, a vapor 321 is introduced to utilize the moisture and heat contained in the vapor 321 to grind the converter slag into powdery particles, and the heat energy is utilized to promote the freeness of the water vapor and the converter stone. Calcium oxide (f-CaO) and free magnesium oxide (f-CaO) react rapidly to form stable quality calcium carbonate (CaCO 3 ) and magnesium carbonate (MgCo 3 ), so that the converter slag is directly in the grinding process. In the above, the stabilization operation is completed. Of course, the vapor 321 can be recovered by using the waste heat steam resources generated in the steelmaking, so that the cost is low, and the waste heat vapor can be prevented from polluting the environment; finally, the discharging step 33 is on The powdered hearthstones that have been stabilized in the steps are packaged for processing in different industries.
另外，本實施例之研磨安定化步驟32前可另增設有一初步磁選步驟34，以去除混雜於該轉爐渣中具磁性之金屬物質，使該轉爐渣研磨安定化步驟32中，不至於受到該金屬物質硬度之干擾，避免該轉爐渣研磨不完全；再者，當該轉爐渣研磨成粉末狀並完成安定化之爐石時，可將原摻雜於該轉爐渣中內的具磁性之金屬物質再次分離出來，因此完成安定化呈粉狀之爐石內，仍會含有部份少量之金屬物質，因此於該研磨安定化步驟32後亦可適時另設有一磁選步驟35，以磁選該粉末之爐石中所含之金屬物質，避免後續該粉狀之爐石中含有具磁性之金屬物質，使該出料後該粉狀之爐石能順利的利用。In addition, a preliminary magnetic separation step 34 may be additionally added before the polishing stabilization step 32 of the embodiment to remove the magnetic metal material mixed in the converter slag, so that the converter slag grinding stabilization step 32 is not affected by the The interference of the hardness of the metal material avoids the incomplete grinding of the converter slag; furthermore, when the converter slag is ground into a powder and completes the stabilized hearthstone, the magnetic metal originally doped into the converter slag can be The material is separated again, so that a part of a small amount of metal substance is still contained in the stabilized powdered hearth. Therefore, after the grinding stabilization step 32, a magnetic separation step 35 may be additionally provided to magnetically select the powder. The metal material contained in the hearth stone avoids the subsequent inclusion of the magnetic metal material in the powdered hearthstone, so that the powdered hearthstone can be smoothly utilized after the discharging.
參閱圖2，本實施例操作時，備置煉鋼處理後所產生且未經安定化之轉爐渣(即備料步驟31)，將前述備料步驟31中之轉爐渣中所含之具磁性的金屬物質加以磁選去除(即初步磁選步驟34)，而後將該轉爐渣研磨成粉末，並與研磨過程中導入該蒸氣321，以利用該蒸氣321內所含之熱能與水氣，使該轉爐渣能快速於研磨過程進行安定化反應，以形成一可再利用且呈粉狀之爐石(即研磨安定化步驟32)，而後在將摻雜於該轉爐渣中內的具磁性之金屬物質再次磁選去除(即磁選步驟35)，最後再將上述步驟中以所得成粉狀之爐石，直接運用於水泥或混凝土之添加材料上，當然亦可適時的做一包裝，以供不同領域進行處理運用(即出料步驟33)。Referring to FIG. 2, in the operation of the embodiment, the converter slag which is produced after the steelmaking process and is not stabilized (ie, the preparation step 31) is prepared, and the magnetic metal substance contained in the converter slag in the preparation step 31 is prepared. Magnetic separation is removed (ie, preliminary magnetic separation step 34), and then the converter slag is ground into a powder, and the vapor 321 is introduced into the grinding process to utilize the heat energy and moisture contained in the vapor 321 to make the converter slag fast. The stabilization reaction is carried out during the grinding process to form a reusable and powdered hearthstone (ie, grinding stabilization step 32), and then the magnetic metal material doped in the converter slag is again magnetically removed. (ie, magnetic separation step 35), and finally, the powdered hearthstone obtained in the above steps is directly applied to the cement or concrete additive material, and of course, it can be packaged in time for processing in different fields ( That is, the discharging step 33).
是以，該未安定化之轉爐渣，可直接於該研磨安定化步驟32中，於研磨過程使該轉爐渣磨碎成粉末之過程時，利用該蒸氣321中之熱能與水氣，亦可快速促使該轉爐渣產生安定化反應，除可縮短其反應時間外，更可避免佔用到龐大的土地與水資源地浪費，降低作業成本外，同時，該蒸氣321皆利用資源回收後之廢氣體再次利用，因此又兼具環保之節能減碳等功效。Therefore, the unstabilized converter slag can be directly used in the grinding stabilization step 32, and the heat and moisture in the vapor 321 can be utilized when the converter slag is ground into a powder during the grinding process. Quickly promote the stabilization reaction of the converter slag, in addition to shortening the reaction time, avoiding the waste of huge land and water resources and reducing the operating cost. At the same time, the steam 321 utilizes the waste gas after the resource recovery. It is used again, so it has the functions of environmental protection, energy saving and carbon reduction.
參閱圖3，本發明之第二較佳實施例，本實施例所運用之方法及達成之功效皆同於第一實施例，不再詳述，特別在於本實施例中該進料步驟後另增設有一初步安定化步驟36，以及一椄續該初步安定化步驟36後之篩分步驟37；其中，該初步安定化步驟36其備置有一內部承裝有水之水槽(圖中未示出)，以將該進料步驟中之轉爐渣置入該水槽內，以使該轉爐渣與水反應產生崩解與初步安定化反應；另，該篩分步驟37係將前述步驟所得未完全安定化之轉爐渣依粒徑大小進行等級分選，而所分選出較大粒徑之該等轉爐渣先行進行一破碎步驟38處理，以再降低該轉爐渣之粒徑縮小，以便再進入該篩分步驟37持續進行分選。Referring to FIG. 3, in the second preferred embodiment of the present invention, the method and the effect achieved by the embodiment are the same as those in the first embodiment, and are not described in detail, particularly in the embodiment, after the feeding step. Adding a preliminary stabilization step 36, and a sieving step 37 subsequent to the preliminary stabilization step 36; wherein the preliminary stabilization step 36 is provided with an internal water-filled water tank (not shown) The converter slag in the feeding step is placed in the water tank to react the converter slag with water to cause disintegration and preliminary stabilization reaction; and the sieving step 37 is not completely stabilized by the foregoing steps. The converter slag is sorted according to the particle size, and the converter slags with the larger particle diameters are sorted and subjected to a crushing step 38 to reduce the particle size of the converter slag to reduce the size of the slag. Step 37 continues the sorting.
另外，本實施例於該研磨安定化步驟32中，另可導入二氧化碳322之氣體，以便利用該二氧化碳322氣體使研磨過後之粉狀爐石可以迅速將其內水氣去除，而本實施例中所運用之該二氧化碳322氣體，則可使用煉鋼中所產生之廢棄氣體(二氧化碳322)，加以回收並導入該研磨安定化步驟32中，所以除能減省成本外，更可減少二氧化碳322的整體排放量。In addition, in the polishing stabilization step 32, the gas of the carbon dioxide 322 can be further introduced, so that the powdered calculus after the grinding can be quickly removed by the carbon dioxide 322 gas, and in this embodiment, The carbon dioxide 322 gas used can be recovered and introduced into the grinding stabilization step 32 by using the waste gas (carbon dioxide 322) generated in the steel making, so that in addition to reducing the cost, the carbon dioxide 322 can be reduced. Overall emissions.
是以，後續當該轉爐渣於該研磨安定化步驟32時，該轉爐渣已經完成部份安定化反應，同時該轉爐渣顆粒也經該破碎步驟38縮小其顆粒粒徑，可有效縮短該研磨安定化步驟32所需之研磨、安定化反應時間，更加提升該其作業效率。Therefore, when the converter slag is in the grinding stabilization step 32, the converter slag has completed a partial stabilization reaction, and the converter slag particles are also reduced in particle size by the crushing step 38, which can effectively shorten the grinding. The grinding and stabilization reaction time required for the stabilization step 32 further enhances the working efficiency.
由上述之說明，本發明確實具有以下所列之優點與功效：From the above description, the present invention does have the advantages and effects listed below:
1.鑒於研磨安定化步驟32中，直接導入煉鋼後所產生廢熱之蒸氣321，即可於研磨過程中，直接利用該蒸氣321中所含之熱能與水氣，促使該轉爐渣於磨成粉狀之過程中，不需任何攪拌動作即可完成安定化反應，因此可有效縮短其處理時間、提昇作業效率。1. In the grinding stabilization step 32, directly introducing the steam 321 of waste heat generated after the steel making, the heat energy and moisture contained in the steam 321 can be directly used in the grinding process to promote the converter slag to be ground. In the process of powder, the stabilization reaction can be completed without any stirring action, so the treatment time can be shortened and the work efficiency can be improved.
2.仍續前述，再者研磨過程中並未加入任何安定化助劑，因此並不會造成費用成本提高，即使另外添加之蒸氣321與二氧化碳322等皆可適時導引煉鋼過程中所產生之廢棄物再次回收使用，有效抑制減少廢熱之蒸氣321與二氧化碳322的排放，避免環境污染。2. Continued as mentioned above, no further stabilizers are added during the grinding process, so there is no increase in cost, even if additional steam 321 and carbon dioxide 322 are added to guide the steelmaking process. The waste is recycled again, effectively suppressing the emission of waste heat 321 and carbon dioxide 322, and avoiding environmental pollution.
3.最後，本發明之使用蒸氣321促進該轉爐渣產生安定化反應，該轉爐渣內所含之水氣並非像習知添加安定化助劑那麼高，故當研磨完成後，不需額外增加一道烘乾步驟，如此就不需燃燒燃料以產生熱能，除了減少能源的消耗外，亦可減少二氧化碳322之排放，更能達到環保、節能減碳等功效。3. Finally, the use of the steam 321 of the present invention promotes the stabilization reaction of the converter slag, and the moisture contained in the converter slag is not as high as the conventional addition stabilizer, so that when the grinding is completed, no additional increase is required. A drying step, so that there is no need to burn fuel to generate heat, in addition to reducing energy consumption, it can also reduce the emission of carbon dioxide 322, and can achieve environmental protection, energy saving and carbon reduction.
歸納前述，本發明乾磨式快速安定化之轉爐渣資源化處理方法，主要係將未安定化之轉爐渣直接經由該研磨安定化步驟將該轉爐渣研磨成顆粒之粉狀，同時於研磨過程中加入一蒸氣，以直接利用該蒸氣內所含之熱能與水氣，不須經由任何攪拌動作即可促使該轉爐渣快速進行安定化反應，以形成一可再利用且穩定之粉狀爐石，除可有效縮短作業時間、降低作業成本外，同時兼具環保且低耗能之節能減碳等功效，故確實能達到本發明之目的。In summary, the dry-running rapid stabilization converter slag resource treatment method of the present invention mainly comprises the unstabilized converter slag directly grinding the converter slag into powder particles through the grinding stabilization step, and simultaneously in the grinding process. A steam is added to directly utilize the heat energy and moisture contained in the steam, and the converter slag can be quickly stabilized without any stirring action to form a reusable and stable powdered hearthstone. In addition to effectively reducing the working time and reducing the operating cost, and at the same time having the functions of environmental protection and low energy consumption, energy saving and carbon reduction, it is indeed possible to achieve the object of the present invention.
惟以上所述者，僅為說明本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明書內容所作之簡單等效變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。However, the above description is only for the purpose of illustrating the preferred embodiments of the present invention, and is not intended to limit the scope of the embodiments of the present invention. All should remain within the scope of the invention patent.
3．．．乾磨式快速安定化之轉爐渣資源化處理方法3. . . Dry mill type rapid stabilization converter slag resource treatment method
31．．．備料步驟31. . . Preparation step
32．．．研磨安定化步驟32. . . Grinding stabilization step
33．．．出料步驟33. . . Discharge step
34．．．初步磁選步驟34. . . Preliminary magnetic separation step
35．．．磁選步驟35. . . Magnetic separation step
36．．．初步安定化步驟36. . . Initial stabilization step
37．．．篩分步驟37. . . Screening step
38．．．破碎步驟38. . . Fragmentation step
321．．．蒸氣321. . . Vapor
322．．．二氧化碳322. . . carbon dioxide
圖1是習知轉爐渣資源化處理方法之流程圖；1 is a flow chart of a conventional method for recycling a converter slag resource;
圖2是本發明第一較佳實施例之流程圖；及Figure 2 is a flow chart of a first preferred embodiment of the present invention; and
圖3是本發明第二較佳實施例之流程圖。Figure 3 is a flow chart of a second preferred embodiment of the present invention.
3．．．乾磨式快速安定化之轉爐渣資源化處理方法3. . . Dry mill type rapid stabilization converter slag resource treatment method
31．．．備料步驟31. . . Preparation step
32．．．研磨安定化步驟32. . . Grinding stabilization step
33．．．出料步驟33. . . Discharge step
34．．．初步磁選步驟34. . . Preliminary magnetic separation step
35．．．磁選步驟35. . . Magnetic separation step
321．．．蒸氣321. . . Vapor
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| TW529970B (en) * | 1996-08-28 | 2003-05-01 | Babcock & Wilcox Volund Aps | A method for the treatment, in particular stabilization, of materials containing environmentally noxious constituents, especially from the incineration of waste, as well as a plant for carrying out the said method |
| TWI241993B (en) * | 2003-12-31 | 2005-10-21 | China Hi Ment Corp | Method for producing concrete auxiliary agent using gas-cooled slag as basis |
| CN101413037A (en) * | 2008-11-28 | 2009-04-22 | 首钢总公司 | Method for recovery of waste heat of steel slag and comprehensively processing and utilizing steel slag |
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| TW529970B (en) * | 1996-08-28 | 2003-05-01 | Babcock & Wilcox Volund Aps | A method for the treatment, in particular stabilization, of materials containing environmentally noxious constituents, especially from the incineration of waste, as well as a plant for carrying out the said method |
| TWI241993B (en) * | 2003-12-31 | 2005-10-21 | China Hi Ment Corp | Method for producing concrete auxiliary agent using gas-cooled slag as basis |
| CN101413037A (en) * | 2008-11-28 | 2009-04-22 | 首钢总公司 | Method for recovery of waste heat of steel slag and comprehensively processing and utilizing steel slag |
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