CS273058B1 - Method of waste non-ferrous metallurgical chips treatment - Google Patents
Method of waste non-ferrous metallurgical chips treatment Download PDFInfo
- Publication number
- CS273058B1 CS273058B1 CS419688A CS419688A CS273058B1 CS 273058 B1 CS273058 B1 CS 273058B1 CS 419688 A CS419688 A CS 419688A CS 419688 A CS419688 A CS 419688A CS 273058 B1 CS273058 B1 CS 273058B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- chips
- slag
- waste
- metallurgical
- weight
- Prior art date
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title 1
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims description 23
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- -1 ferrous metals Chemical class 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000012774 insulation material Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000004520 agglutination Effects 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003568 thioethers Chemical class 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
Description
(57) RieSení sa týká spracovania odpadných kovohutníokych trosiek s velmi nízkým obsahom úžitkových zložiek, vznikájúcich v hutnických peciach pri výrobě neželezných kovov z koncentratov a druhotných surovin. Navrhovaným postupom sa z haldovaných trosiefc získá nový tepelne izolačný materiál najma pre etavebníctvo a zamedzí se znečisťovaniu životného prostredia.(57) The solution concerns the treatment of waste metallurgical slags with a very low content of useful constituents produced in metallurgical furnaces in the production of non-ferrous metals from concentrates and secondary raw materials. The proposed procedure is to obtain new thermal insulation material from heaped quarries, especially for refurbishment, and to avoid environmental pollution.
Tohto účinku sa dosiahne ohřevon trosky v oxidačnej atmosféře na teplotu 1000 až 1200 °C počas 60 až 240 s, pričom dojde k jej expandáoii. V případg spracovávania trosky za podnienoíf uaožnujucich zlepovenle expandovaných zrn, pridava sa k troske separačný inertný. materiál, v množstve minimálně 10 % hmot.This effect is achieved by heating the slag in an oxidizing atmosphere at a temperature of 1000 to 1200 ° C for 60 to 240 s while expanding it. In the case of treating the slag to facilitate the sanding of expanded grains, an inert separation separator is added to the slag. %, at least 10 wt.
CS 273058 BlCS 273058 Bl
CS 273058 Bl trCS 273058 Bl tr
Riešenie sa týká spraoovania odpadnýoh kovohutníckyoh trosiek, vznikajúcich pri výrobě neželezných kovov v hutníokyoh agregátoch. Účelom je apracovať odpadně kovohutníoke trosky na tepelno - izolačný alebo iný produkt pre stavebníctvo. Uvedeného účelu sa dosiahne optimálnyo tepelno - technickým režimom spraoovania odpadnej kovohutníokej trosky.The present invention relates to the treatment of scrap metal scrap produced by the production of non-ferrous metals in metallurgical aggregates. The purpose is to treat waste metal-slag wastes to heat-insulating or other construction products. This purpose is achieved optimally by the thermo-technical regime of waste metal-slag waste treatment.
Doteraz Ba vyššie uvedené odpadné trosky nespraoovávajú hutnickým postupom. V ojedinělých případoch sa tieto trosky používájú ako materiál na posyp ciest, ako ostrlvo na tryekanie odliatkov v zlivárňach, čiastočne ako materiál nahrádzajúci štrk. Vačšinou sa tieto trosky skladujú eko odpadný materiál na baldách. Uvedené použitie nie je univerzálně, ani ekonomické a tiež vzhladom na ekológiu krajiny nie je žladúce.To date, the abovementioned waste debris has not been subjected to metallurgical processes. In rare cases, these debris are used as road scattering material, as an island for jetting castings in foundries, partly as gravel replacing material. Usually, these debris stores eco-waste material on bales. This use is neither universally nor economical, nor is it frustrating because of the ecology of the landscape.
Vyššie uvedené nedostatky sa odatránia sposobom spraoovania odpadnýoh kovohutníokych trosiek podlá vynálezu, ktorého podstata spočívá v tom, že odpadná kovohutníoka troska s obsahom zložky vytvárajúcej počas tepelného spraoovania nad teplotou povrchového natavenia zrn plynná fázu, sa podrobí ohřevu v oxidačnej atmosféře na teplotu 1000 až 1200 °C počas 60 až 240 s, pričom dojde k jej expandácil. Expandujúoa zložka síra sa v troska nachádza v množstve do 1,5 % vo formě sírnikov. V případe, že ohřev sa vykonává za podmienok umožňujúoich časté kontakty netavených expandujúcich zrn trosky je výhodné proees expandáoie viest v přítomnosti přísady, zabranujúoej ich vzájemnému nalepovaniu. Ako aeparačné přísady možu sa přidávat' v množstve od 10 % hmot. trosky jemnozmné žlaruvzdomé materiály o zrnitosti pod 0,5 mm, například Inertné materiály, ako je jemne mletý žiaruvzdomý íl, šamotový úlet, jemný křemičitý pieaok a pod.The above-mentioned drawbacks are eliminated by the method of treating waste metal-slag waste according to the invention, which is characterized in that the waste metal-slag waste containing a gas phase component above the surface melting point of the grain is subjected to heating in an oxidizing atmosphere of 1000 to 1200 ° C. C for 60 to 240 s, expanding. Expansion of the sulfur component is found in the slag in an amount of up to 1.5% in the form of sulphides. Where heating is carried out under conditions permitting frequent contact of the non-melted expanding slag grains, it is preferred to expand the slag in the presence of an additive to prevent them from sticking together. They may be added in a quantity of 10 wt. slag fine-grain refractory materials with a grain size below 0.5 mm, for example, Inert materials such as finely ground refractory clay, fireclay, fine silica pieaok and the like.
Tepelná úprava aa robí v známých pecnýeh agregátoch (rotačná, prlbežná alebo fluidná pec) tak, že sa vyššie uvedená troska rýchlo ohřeje na teplotu maknutla v oxidačnej atmosféře, s krátkou výdržou na tejto teplote, ktorá je limitujúoim faktorom pre expandáciu trosky podťa vynálezu.The heat treatment a and does in the known furnace aggregates (rotary, continuous or fluidized bed furnace) such that the above-mentioned slag is rapidly heated to a melt temperature in an oxidizing atmosphere, with a short hold at this temperature, which is a limiting factor for slag expansion according to the invention.
Takto získaný expandovaný materiál má aypnú objemová hmotnost* 3 až 6-násobne nižšiu oproti sypnej objemovej hmotnosti povodněj trosky.The expanded material thus obtained has a bulk density * 3 to 6 times lower than the bulk density of the flood slag.
Výhodou sposobu podlá vynálezu je ukončenie postupu výroby neželezných kovov bezodpadovou tecbnológlou tým, že sa haldová troska spracuje pre stavebnícke účely. Navrhovaným postupom aa získá tepelno-izolačný materiál a zamedzí sa znečlstovaniu životného prostredia haldovaním.An advantage of the process according to the invention is to terminate the process for producing non-ferrous metals by a waste-free technology by treating the slag heap for construction purposes. The proposed process aa obtains a thermal insulating material and avoids environmental contamination by heaping.
Sposob podťa vynálezu je popísaný v příkladoch.The process according to the invention is described in the examples.
Příklad 1Example 1
Granulovaná odpadná troska s obsahom Cu od 0,5 do 0,8 $ hmot,, PeO od 26,2 do 38 % hmot., Pe^O^ od 5 do 10,2 % hmot., Si02 od 32,1 do 35 % hmot., CaO od 2,4 do 7,5 % hmot., MgO od 1,6 do 4,0 % hmot., AlgOj od 2,5 do 4 % hmot., S od 0,5 do 1,0 % hmot., o zrnitosti do 2 mm sa zmiešala s jemne zomletým žiaruvzdorným ílom.Granulated waste slag with Cu content from 0.5 to 0.8% by weight, PeO from 26.2 to 38% by weight, PeO 2 from 5 to 10.2% by weight, SiO 2 from 32.1 to 40% by weight 35 wt%, CaO from 2.4 to 7.5 wt%, MgO from 1.6 to 4.0 wt%, AlgO 3 from 2.5 to 4 wt%, S from 0.5 to 1, 0% by weight, with a grain size of up to 2 mm, was mixed with finely ground refractory clay.
Zmes sa podrobila ohřevu v statiokej vrstvě na teplotu 1190 °C za 60 s v oxidačnej atmosféře, s výdržou na tejto teplote 90 s. Chladnutle na teplotu okolia trvalo cez 120 s. Sypná hmotnost’ expandovaného materiálu bola 375 kg.m5, t.j, 4,9 - krát nižšia oproti povodněj grabulovanej troska o sypnej hmotnosti 1840 kg.m“5.The mixture was heated in a static layer to a temperature of 1190 ° C under a 60 s oxidizing atmosphere, with a temperature of 90 s. Cooling to ambient temperature lasted over 120 s. The bulk density of the expanded material was 375 kg.m 5 , ie, 4.9 times lower than the flooded grained slag with a bulk density of 1840 kg.m 5 .
Přiklad 2Example 2
Granulovaná odpadná mediarenská troska o chemiokom zložení ako v příklade 1, o zrnitosti do 5 mm sa miešala s jemnozrnným žiaruvzdorným materiálom.The granulated waste slag of the chemical composition as in Example 1, with a grain size of up to 5 mm, was mixed with a fine-grained refractory material.
Zmes sa podrobila ohřevu v rotačněj peci na teplotu 1050 °0 počas doby 102 a v oxidačnej atmosféře, s výdržou na tejto teplote 105 s. Expandovaný materiál sa chladilThe mixture was heated in a rotary kiln to 1050 ° C for 102 hours and under an oxidizing atmosphere, with a hold time of 105 s. The expanded material was cooled
CS 273058 Bl fCS 273058 B1 f
l·l ·
i.i.
na teplotu okolia postupná. Sypná objemová hmotnost’ expandovaného materiálu bolagradually to ambient temperature. The bulk density of the expanded material was
305 kg.m“\ t.j. 6 krát nižšia oproti sypnaj objemovej hmotnosti póvodnej granulovanej trosky.305 kg.m " 6 times lower than the bulk density of the original granulated slag.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS419688A CS273058B1 (en) | 1988-06-16 | 1988-06-16 | Method of waste non-ferrous metallurgical chips treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS419688A CS273058B1 (en) | 1988-06-16 | 1988-06-16 | Method of waste non-ferrous metallurgical chips treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS419688A1 CS419688A1 (en) | 1990-07-12 |
| CS273058B1 true CS273058B1 (en) | 1991-03-12 |
Family
ID=5384151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS419688A CS273058B1 (en) | 1988-06-16 | 1988-06-16 | Method of waste non-ferrous metallurgical chips treatment |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS273058B1 (en) |
-
1988
- 1988-06-16 CS CS419688A patent/CS273058B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS419688A1 (en) | 1990-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100470089B1 (en) | Method for producing metallic iron | |
| US4124404A (en) | Steel slag cement and method for manufacturing same | |
| AU2010206718B2 (en) | Production of iron from metallurgical waste | |
| US20080250899A1 (en) | Processing Metallurgical Slag | |
| CA2720896C (en) | Titanium oxide-containing agglomerate for producing granular metallic iron | |
| US4396422A (en) | Process for producing iron and refractory material | |
| JP2000169136A (en) | Synthetic calcium silicate and mold powder for continuous casting of steel using the same | |
| RU2241771C1 (en) | Briquette for cast iron smelting | |
| AU2006335814B2 (en) | Method for manufacturing metallic iron | |
| KR19980063560A (en) | Manufacturing method of artificial aggregate for concrete from incineration circuit and manufacturing apparatus thereof | |
| CS273058B1 (en) | Method of waste non-ferrous metallurgical chips treatment | |
| Pribulová et al. | Utilization of slags from foundry process | |
| KR870001567B1 (en) | Method for use steel manufacture slag | |
| EP0325862A2 (en) | Additive for promoting slag formation in steel refining ladle | |
| JP2005126732A (en) | Method and apparatus for melting reduction of metal oxide-containing material | |
| JP4705483B2 (en) | Method for producing molten iron | |
| JP3135042B2 (en) | Synthetic processing method and apparatus for artificial rock from incinerated ash molten slag | |
| JPH10263768A (en) | How to reuse converter slag | |
| RU2241760C1 (en) | Briquette as component of blast-furnace batch | |
| HK1203570A1 (en) | Pyrometallurgical treatment of slags | |
| JP7095674B2 (en) | How to make concrete | |
| US3377177A (en) | Metallurgical furnace lining | |
| JP3451901B2 (en) | Operating method of mobile hearth furnace | |
| JPS6287443A (en) | Treatment of steel slag | |
| SU1273400A1 (en) | Method of smelting silicomanganese |