JPS5741517A - Sludge incinerating method - Google Patents
Sludge incinerating methodInfo
- Publication number
- JPS5741517A JPS5741517A JP11748680A JP11748680A JPS5741517A JP S5741517 A JPS5741517 A JP S5741517A JP 11748680 A JP11748680 A JP 11748680A JP 11748680 A JP11748680 A JP 11748680A JP S5741517 A JPS5741517 A JP S5741517A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- air
- exhaust gas
- supplied
- chromium
- 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.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title abstract 8
- 238000000034 method Methods 0.000 title abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 5
- 239000007789 gas Substances 0.000 abstract 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 3
- 229910052804 chromium Inorganic materials 0.000 abstract 3
- 239000011651 chromium Substances 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 abstract 1
Landscapes
- Gasification And Melting Of Waste (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
PURPOSE: To provide a method of incinerating chromium containing sludge, which is capable of preventing formation of hexavalent chromium, by burning sludge under the presence of a smaller amount of air than the theoretical amount of air liquired for combustion of the sludge, and effecting complete combustion of exhaust gas after separating ash contained in the exhaust gas.
CONSTITUTION: Pre-dehydrated and pre-dried chromium containing sludge 1 is supplied consistently, by a consistent feeder 4, into a fluidized incinerator 3 which is fluidized by primary air supplied by a primary-air blower 2. Here, oxidation of chromium contained in the sludge is prevented by making the amount of primary air supplied by the blower 2 smaller than the theoretical amount of air required for burning the sludge supplied and thus causing incomplete combustion of sludge while keeping a reducing atmosphere in the indinerator 3. Exhaust gas 5 produced in the incinerator 5 is carried into a secondary combustion chamber 8 after separating ash 7 in a cyclone 6. In the secondary combustion chamber 8, exhaust gas 5 is burned completely by secondary air supplied from a secondary-air blower 9 and then discharged to the outside after recovering heat at a waste-heat boiler 10.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11748680A JPS5741517A (en) | 1980-08-26 | 1980-08-26 | Sludge incinerating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11748680A JPS5741517A (en) | 1980-08-26 | 1980-08-26 | Sludge incinerating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5741517A true JPS5741517A (en) | 1982-03-08 |
Family
ID=14712897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11748680A Pending JPS5741517A (en) | 1980-08-26 | 1980-08-26 | Sludge incinerating method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5741517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61134519A (en) * | 1984-11-30 | 1986-06-21 | Takuma Co Ltd | Sludge reduction reaction device |
| JPH0783421A (en) * | 1993-06-28 | 1995-03-28 | Kawasaki Heavy Ind Ltd | Fluidized bed refuse incinerator with chloride removing function |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53105071A (en) * | 1977-02-23 | 1978-09-12 | Ishigaki Mech Ind | Incineration of chromiummcontaining sludge |
-
1980
- 1980-08-26 JP JP11748680A patent/JPS5741517A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53105071A (en) * | 1977-02-23 | 1978-09-12 | Ishigaki Mech Ind | Incineration of chromiummcontaining sludge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61134519A (en) * | 1984-11-30 | 1986-06-21 | Takuma Co Ltd | Sludge reduction reaction device |
| JPH0783421A (en) * | 1993-06-28 | 1995-03-28 | Kawasaki Heavy Ind Ltd | Fluidized bed refuse incinerator with chloride removing function |
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