CS231757B1 - Method of extraction of utility components from power and heatings plants light ash - Google Patents
Method of extraction of utility components from power and heatings plants light ash Download PDFInfo
- Publication number
- CS231757B1 CS231757B1 CS814472A CS447281A CS231757B1 CS 231757 B1 CS231757 B1 CS 231757B1 CS 814472 A CS814472 A CS 814472A CS 447281 A CS447281 A CS 447281A CS 231757 B1 CS231757 B1 CS 231757B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- magnetic
- weight
- power
- heatings
- extraction
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title 1
- 238000000605 extraction Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims description 10
- 239000010881 fly ash Substances 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- 235000013980 iron oxide Nutrition 0.000 claims description 5
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 229910052742 iron Inorganic materials 0.000 description 10
- 238000007885 magnetic separation Methods 0.000 description 9
- 238000000926 separation method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000006148 magnetic separator Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Description
Vynález sa týká sposobu získavania úžitkových zložiek z teplárenských a elektrárenských popolčekov.The invention relates to a process for obtaining useful components from heating and power ashes.
V súčasnostl sa problematikou získavania železa z popoičeka, ktorý vzniká ako odpadový produkt v kotolniach, toplárňach a elektrárnách zaoberajú vlacerí autoři. Postupuje sa obvykle tak, že popolček sa vo vhodnom gravitačnom zariadení, ktorým móže byť prúdový žlab alebo hydrocyklón rozdělí na ťažký a 1'ahký podiel. Ťažký podiel je vhodnou vsádzkou pre nízkolntenzitnú mokrá magnetická separáciu, kde sa v niekoTkých stupňoch magneticky prečisťuje. Nevýhodou tohoto riešenia je vysoká spotřeba vody v procese a následné čistenie týchto odpadových vod.Currently, the issue of obtaining iron from popoice, which is produced as a waste product in boiler rooms, heating plants and power plants is dealt with by other authors. Usually, the fly ash is separated into a heavy and light portion in a suitable gravity device, which may be a flow trough or a hydrocyclone. The heavy fraction is a suitable charge for low-intensity wet magnetic separation where it is magnetically purified in several stages. The disadvantage of this solution is the high water consumption in the process and the subsequent treatment of these waste water.
Nevýhody týchto postupov odstraňuje sposob získavania úžitkových zložiek z teplárenských a elektrárenských popolčekov podlá vynálezu, ktorého podstatou je, že popolček s obsahem magneticky odstranitelných oxidov železa sa priebežne magneticky rozdružuje pri sýtiacom práde 0,5 až 2A a magnetickej indukcii 0,04 až 0,13 T na magnetický a nemagnetický podiel, a ďalej sa magnetický podiel čistí za mokra v magnetickom poli.Disadvantages of these processes are eliminated by the method of recovering the useful components from the heating and power ashes according to the invention, which is based on the fact that the fly ash containing magnetically removable iron oxides is continuously magnetically separated in carbonation laundry 0.5 to 2A and magnetic induction 0.04 to 0.13 T into a magnetic and non-magnetic fraction, and further the magnetic fraction is cleaned wet in a magnetic field.
Postupovat sa može aj tak, že magnetický podiel sa jeden, alebo viac rázy priebežne magneticky rozdružuje za podmienok ako holo uvedené.It is also possible to proceed in such a way that the magnetic portion is continuously magnetically separated by one or more shocks under conditions as described above.
Magnetický podiel obsahuje najma magneticky odstránitelné oxidy železa a nemagnetický podiel v koncentrácii řádové 10 pere. hmotnosti hliník, křemík, vápník a mangán a v koncentrácii 10-2, resp. 10~3 pere. hmotnosti meď, chróm, zmok, sodík, kobalt, indium,, vanad a bizmút. Pri sposobe získavania úžitkových zložiek podlá vynálezu dochádza v prvej fáze sposobu k nabohateniu magneticky odstranitelných oxidov železa a v ďalšoj fáze prečistenia dochádza k řádovému zvýšeniu ostrosti rozdružovania a vysokej výťažnosti oxidov železa do mokrého magnetického podielu.The magnetic fraction comprises, in particular, magnetically removable iron oxides and a non-magnetic fraction in a concentration of the order of 10 pens. weight aluminum, silicon, calcium and manganese and in a concentration of 10 -2 , respectively. 10 ~ 3 washes. weight copper, chromium, water, sodium, cobalt, indium, vanadium and bismuth. In the process for obtaining the useful components according to the invention, in the first phase of the process, magnetically removable iron oxides are enriched and in the next purification phase there is an order of magnitude increase in the separation and high yield of iron oxides into the wet magnetic fraction.
Výhodou sposobu podlá vynálezu je, že výťažnosť železa do magnetického podielu je 80 až 95 %-ná. Nemagnetický podiel, ktorý představuje 75 a!ž 85 % z dávky idúcej na rozdruženie obsahuje 0,5 až 1 °/o hmotnosti železa sa dá použit na iné účely. Magnetický podiel, tvoriaci 15 až 25 % hmotnosti z dávky idúcej na rozdruženie obsahuje 14 až 15 °/o hmotnosti železa. Magnetický podiel sa v ďalšom stupni rozdružuje na mokrom magnetickom separátore, pričom sa zvýši obsah železa z povodnych 14 až 17 % hmotnosti na 30 až 34 % hmotnosti železa. Výhody zavedenia ďalšieho technologického uzla — mokrého magnetického rozdružovania sú v tom, že v mokrom prostředí sa eliminuje adhézia jednotlivých zrniečok, ktoré počas suchej magnetickej separácie pri určitom obsahu vlhkosti vytvárajú agregáty. Mokré magnetické rozdružovanie představuje už prečisťujúce stádium magnetického rozdružovania. Zavedeme mokrého magnetického rozdružovania do druhoj fázy spracovania popolčekov představuje značná úsporu vody, nakolko v tejto fáze sa spracováva len 15 až 25 '%· popoičeka predtým rozdruženého magneticky suchým spósobom podlá vynálezu.An advantage of the process according to the invention is that the iron recovery to the magnetic fraction is 80 to 95%. The non-magnetic fraction, which is 75 to 85% of the separation rate, contains 0.5 to 1% by weight of iron can be used for other purposes. The magnetic fraction constituting 15 to 25% by weight of the batch going off contains 14 to 15% by weight of iron. In the next step, the magnetic fraction is separated on a wet magnetic separator, increasing the iron content from floods of 14 to 17% by weight to 30 to 34% by weight of iron. The advantage of introducing another technological node - wet magnetic separation - is that in the wet environment the adhesion of individual grains, which form aggregates during a dry magnetic separation at a certain moisture content, is eliminated. Wet magnetic separation is already a purifying stage of magnetic separation. Introducing wet magnetic separation into the second fly ash treatment phase represents a considerable water saving since only 15 to 25% of the fly previously separated by the magnetically dry method of the invention is treated at this stage.
Predmet vynálezu je ilustrovaný na příklade prevedenia.The invention is illustrated by way of example.
PříkladExample
Spracovaniu sa podrobil popolček s obsahom 3 až 5 % hmotnosti železa, u ktorého sa uskutočnil zrnitostný rozbor uvedený v tabufke.The fly ash containing 3-5% by weight of iron was subjected to a grain size analysis as shown in the table.
Zrnitostný rozbor popoičeka (kotofňa Větrní]Grain size analysis of popoice
Po rozdružení na vhodnom magnetickom suchom separátore sa získal magnetický podiel s hmotnostným yýnosom 22 % a s oibsahom železa 15,0 %i hmotnosti. Nemagnetický podiel je tvořený hmotnostným výnosom 78 % s obsahom Fe 0,8 % hmotnosti. Magnetický podiel, získaný suchým magnetickým rozdružovaním sa v ďalšom stupni úpravy rozdružoval na mokrom magnetickom separátore s nasledovnou bilanciou: 42 % hmotnostného výnosu s obsahom 34 pere. hmotnosti Fe představuje magnetický podiel a 58 % hmotnostného výnosu s obsahom 0,9 % hmotnosti železa představuje nemagnetický podiel.After separation on a suitable magnetic dry separator, a magnetic fraction of 22% by weight and an iron content of 15.0% by weight was obtained. The non-magnetic fraction consists of 78% by weight with an Fe content of 0.8% by weight. The magnetic fraction obtained by dry magnetic separation was next separated in a wet magnetic separator with the following balance: 42% yield by weight containing 34 feathers. Fe represents a magnetic fraction and 58% yield by weight containing 0.9% iron by weight represents a non-magnetic fraction.
Magnetický podiel získaný v základnom magnetickom rozdružovaní a v potrebnom počte prečiste-ných stupňov magnetického rozdružovánia je možné opáť použit v oblasti úpravníctva ako zaťažkávadlo v ťažkosuspenzných uhofných úpravniach, ďalej ako surovinu pre výrobu železa.The magnetic fraction obtained in the basic magnetic separation and in the required number of purified magnetic separation stages can again be used in the treatment field as a burden in heavily-suspending coal-fired treatment plants, further as a raw material for the production of iron.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS814472A CS231757B1 (en) | 1981-06-15 | 1981-06-15 | Method of extraction of utility components from power and heatings plants light ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS814472A CS231757B1 (en) | 1981-06-15 | 1981-06-15 | Method of extraction of utility components from power and heatings plants light ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS447281A1 CS447281A1 (en) | 1984-05-14 |
| CS231757B1 true CS231757B1 (en) | 1984-12-14 |
Family
ID=5387530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS814472A CS231757B1 (en) | 1981-06-15 | 1981-06-15 | Method of extraction of utility components from power and heatings plants light ash |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS231757B1 (en) |
-
1981
- 1981-06-15 CS CS814472A patent/CS231757B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS447281A1 (en) | 1984-05-14 |
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