SU174360A1 - METHOD FOR PROCESSING ZINC ISHARI - Google Patents
METHOD FOR PROCESSING ZINC ISHARIInfo
- Publication number
- SU174360A1 SU174360A1 SU848930A SU848930A SU174360A1 SU 174360 A1 SU174360 A1 SU 174360A1 SU 848930 A SU848930 A SU 848930A SU 848930 A SU848930 A SU 848930A SU 174360 A1 SU174360 A1 SU 174360A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ishari
- zinc
- processing zinc
- ash
- increase
- Prior art date
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title description 4
- 239000011701 zinc Substances 0.000 title description 4
- 229910052725 zinc Inorganic materials 0.000 title description 4
- 239000000047 product Substances 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 235000005074 zinc chloride Nutrition 0.000 description 2
- 239000011592 zinc chloride Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Description
В насто плее врем цинковую изгарь перерабатывают в трубчатых вращающихс печах при 800-850° С. Топочные газы (продукты сгорани мазута) проход т через впутреннее пространство печи, в результате чего часть цинка в виде окиси и мелких фракций изгари тер етс с отход щими газами.At the present time, the zinc ash is processed in tubular rotary kilns at 800-850 ° C. The flue gases (combustion products of fuel oil) pass through the internal space of the kiln, resulting in the loss of zinc in the form of oxide and small fractions from the waste gases .
Предложенный способ отличйетси от известного тем, что исходную изгарь нагревают при 420-450° С с последующим повышением температуры до 800-350 С с возвратом отход щих газов в голову процесса и частичные, выводом продуктов копденсапии. Это позвол ет повысить эффективность очистки окиси ципка от хлористого цинка и увеличить выход ZnO.The proposed method differs from the well-known fact that initial sinter is heated at 420–450 ° C with subsequent temperature increase to 800–350 C with return of exhaust gases to the head of the process and partial output of copsanthia products. This makes it possible to increase the cleaning efficiency of zinc chloride from zinc chloride and to increase the yield of ZnO.
Сущность способа заключаетс в том, что исходиую изгарь нагревают в муфельных трубчатых печах впачале при 420-450° С, а затем температуру повышают до 800-850° С. The essence of the method is that the outgoing ash is heated in muffle tube furnaces at 420-450 ° C, and then the temperature is raised to 800-850 ° C.
При нагревании изгарь с топочными газами не соприкасаетс . Газообразные продукты прокаливани принудительно перемещают через рабочую камеру и конденсационную систему, возвраща их затем вновь в рабочую камеру, т. е. процесс ведетс с непрерывной циркул цией газообразных продуктов в замкнутом цикле.When heated, the ash does not come into contact with the flue gases. The gaseous calcination products are forcibly moved through the working chamber and the condensation system, then returning them back to the working chamber, i.e., the process is conducted with the continuous circulation of the gaseous products in a closed loop.
Предмет изобретени Subject invention
Способ переработки цинковой изгари в трубчатых муфельных печах с внещним обогревом, отличающийс тем, что, с целью повышени эффективпости очистки окиси цинка от хлористого ципка и повышени выхода, исходную изгарь Бпачале нагревают до 420-450° С, а затем температуру повыщают до 800-850° С с возвратом отход щих газов в голову процесса и частичным выводом продуктов конденсации .A method of processing zinc ash in tubular muffle furnaces with external heating, characterized in that, in order to increase the efficiency of cleaning zinc oxide from bluish chloride and increase the yield, the initial ash burner is heated to 420-450 ° C and then the temperature rises to 800-850 ° С with return of flue gases to the head of the process and partial discharge of condensation products.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU174360A1 true SU174360A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2386612A1 (en) * | 1977-04-04 | 1978-11-03 | Uss Eng & Consult | LIQUATION PROCESS FOR THE TEMPERATURE OF ZINC OF DIRT FROM GALVANIZING BATHS |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2386612A1 (en) * | 1977-04-04 | 1978-11-03 | Uss Eng & Consult | LIQUATION PROCESS FOR THE TEMPERATURE OF ZINC OF DIRT FROM GALVANIZING BATHS |
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