JP3018330B2 - Manufacturing method of artificial stone - Google Patents
Manufacturing method of artificial stoneInfo
- Publication number
- JP3018330B2 JP3018330B2 JP1252746A JP25274689A JP3018330B2 JP 3018330 B2 JP3018330 B2 JP 3018330B2 JP 1252746 A JP1252746 A JP 1252746A JP 25274689 A JP25274689 A JP 25274689A JP 3018330 B2 JP3018330 B2 JP 3018330B2
- Authority
- JP
- Japan
- Prior art keywords
- slag
- artificial stone
- manufacturing
- electric furnace
- molten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002969 artificial stone Substances 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000002893 slag Substances 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
- C04B5/06—Ingredients, other than water, added to the molten slag or to the granulating medium or before remelting; Treatment with gases or gas generating compounds, e.g. to obtain porous slag
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Furnace Details (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は電気炉製鋼過程で発生する溶融スラグから人
造石を製造する方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for producing artificial stone from molten slag generated in an electric furnace steelmaking process.
従来の技術及び発明が解決しようとする問題点 従来、アルミニウム等の還元剤で鉄等の有価金属を回
収した後の溶融電気炉スラグは、冷却後破砕されて一部
が砕石として利用されているだけで大部分は産業廃棄物
として処理されており、十分に有効利用されていないの
が現状である。Problems to be Solved by Conventional Techniques and Inventions Conventionally, molten electric furnace slag after recovering valuable metals such as iron with a reducing agent such as aluminum is crushed after cooling and partially used as crushed stone. However, most of them are treated as industrial waste and are not fully utilized at present.
問題点を解決するための手段 本発明はこのような問題点を解決するための手段とし
て、電気炉スラグから還元鉄を回収した後の溶融状態に
ある残留スラグ中に空気を用いてランス管から珪砂と含
硼素化合物を吹き込んで改質した後、型枠に流し込んで
冷却するようにした。Means for Solving the Problems The present invention, as means for solving such problems, uses air in the molten slag after recovering the reduced iron from the electric furnace slag, using a lance tube from the lance tube. After reforming by blowing silica sand and a boron-containing compound, the mixture was poured into a mold and cooled.
発明の効果 天然石に近い人造石が得られる。Effect of the Invention An artificial stone close to natural stone can be obtained.
実施例 １ 電気炉スラグから還元鉄等の有価金属を回収すると同
時に、スラグの成分を調整するために、アルミ灰、塩化
ナトリウム、弗化カルシウム及び金属珪素粉から構成さ
れる添加剤Ａを溶融スラグに吹き込む。Example 1 At the same time as recovering valuable metals such as reduced iron from electric furnace slag, an additive A composed of aluminum ash, sodium chloride, calcium fluoride and metal silicon powder was melted to adjust the components of the slag. Blow into
即ち第１図に示す滓鍋１に第１表左欄の組成を有する
溶融電気炉スラグ５トンを充填して、添加剤A1,200Kgを
ランス管２から2.5〜5kg/cm2の窒素をキヤリアガスとし
て６〜10分間吹き込んだところ、滓鍋１の底に溶鋼３が
溜まつたので取出口栓４を抜いて溶鋼３を抜いた後、残
留スラグ５に含硼素化合物と珪砂から構成される添加剤
B1,000Kgを空気を用いてランス管２から吹き込んだとこ
ろ、激しくバブリングしながら反応しスラグ中に溶融し
た。このようにして改質された残留スラグの組成を第１
表右欄に示す。That is, the slag pot 1 shown in FIG. 1 is filled with 5 tons of molten electric furnace slag having the composition shown in the left column of Table 1 and 1,200 kg of the additive A is supplied from a lance tube 2 with 2.5 to 5 kg / cm 2 of nitrogen. When the molten steel 3 was collected at the bottom of the slag pot 1, the outlet plug 4 was removed and the molten steel 3 was removed. Then, the residual slag 5 was added with a boron-containing compound and silica sand. Agent
When 1,000 kg of B was blown in from the lance tube 2 using air, it reacted while bubbling vigorously and melted in the slag. The composition of the residual slag thus modified is
It is shown in the right column of the table.
この改質残留スラグを型枠に流し込んで冷却固化した
後、表面を研磨した結果、暗緑色の光沢のある強固な人
造石が得られた。これは建材、特に、壁や床の化粧材と
して好適である。又、この人造石をみかげ石と比較する
と組成は相当異なるが物性は第２表に示すように類似
し、特に曲げ強度、硬度、耐熱性に於いてはみかげ石よ
り優れている。 The modified residual slag was poured into a mold, cooled and solidified, and the surface was polished. As a result, a dark green glossy and strong artificial stone was obtained. This is suitable as a building material, especially as a decorative material for walls and floors. The composition of this artificial stone is considerably different from that of granite, but the physical properties are similar as shown in Table 2, and are superior to granite in bending strength, hardness and heat resistance.
第１図は本発明の実施に使用する滓鍋の断面図である。 1:滓鍋、2:ランス管、3:溶鋼、5:溶融スラグ FIG. 1 is a sectional view of a slag pot used for carrying out the present invention. 1: slag pot, 2: lance tube, 3: molten steel, 5: molten slag
Claims (1)
融状態にある残留スラグ中に空気を用いてランス管から
珪砂と含硼素化合物を吹き込んで改質した後、型枠に流
し込んで冷却する人造石の製造方法。1. A method in which silica sand and a boron-containing compound are reformed by blowing air into a molten slag after recovery of reduced iron from an electric furnace slag from a lance tube using air, and then poured into a mold to cool. Manufacturing method of artificial stone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1252746A JP3018330B2 (en) | 1989-09-28 | 1989-09-28 | Manufacturing method of artificial stone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1252746A JP3018330B2 (en) | 1989-09-28 | 1989-09-28 | Manufacturing method of artificial stone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03117885A JPH03117885A (en) | 1991-05-20 |
| JP3018330B2 true JP3018330B2 (en) | 2000-03-13 |
Family
ID=17241704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1252746A Expired - Fee Related JP3018330B2 (en) | 1989-09-28 | 1989-09-28 | Manufacturing method of artificial stone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3018330B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2471963A4 (en) | 2009-12-30 | 2017-05-31 | Hyundai Steel Company | Method and apparatus for recovering valuable metals from slag and for producing multifunctional aggregates |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572769A (en) * | 1980-06-10 | 1982-01-08 | Nippon Telegr & Teleph Corp <Ntt> | Wire dot printer |
| JPS63485A (en) * | 1986-06-18 | 1988-01-05 | Nok Corp | Radiation cooling film |
-
1989
- 1989-09-28 JP JP1252746A patent/JP3018330B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03117885A (en) | 1991-05-20 |
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