GB1504320A - Control of vertical heat treatment vessels - Google Patents
Control of vertical heat treatment vesselsInfo
- Publication number
- GB1504320A GB1504320A GB1846175A GB1846175A GB1504320A GB 1504320 A GB1504320 A GB 1504320A GB 1846175 A GB1846175 A GB 1846175A GB 1846175 A GB1846175 A GB 1846175A GB 1504320 A GB1504320 A GB 1504320A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air supply
- pressure difference
- oxygen content
- waste gases
- rate
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/26—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
1504320 Controlling operation of shaft kiln ROUND ROCK LIME CO 2 May 1975 [6 May 1974] 18461/75 Heading F4B In a process for heat treating particulate material in a vertical kiln of the kind described in Specification 1,475,574, the distribution of the air supply at the different levels 42, 44, 46 is controlled by regulating the air supply at the bottom level 42 in accordance with the oxygen content of the waste gases measured at 37. The level of charge in the furnace is maintained constant, and the rate at which the charge passes through the furnace is controlled according to the pressure difference measured between points 74 and 78 in the reaction zone by controlling the rate of operation of the grate. The temperature of the fuel gas is maintained constant by regulating the operation of a heat exchanger 25 so that the heat input is more easily controlled. In a modification, Fig. 4, the grate operates at a constant rate, and the pressure difference controls the fuel and air supply, heat exchangers 33, 25 maintaining a constant air and gas temperature to facilitate the fuel/air supply control. The oxygen content of the waste gases controls the air distribution. In another modification (Fig. 5) the oxygen content of the waste gases as well as the pressure difference across the reaction zone is used to control the overall air supply. The kiln may be used to burn limestone or to process oil-shale.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US467139A US3884621A (en) | 1973-07-30 | 1974-05-06 | Control of vertical heat treating vessels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1504320A true GB1504320A (en) | 1978-03-15 |
Family
ID=23854528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1846175A Expired GB1504320A (en) | 1974-05-06 | 1975-05-02 | Control of vertical heat treatment vessels |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5133772A (en) |
| CA (1) | CA1047765A (en) |
| DE (1) | DE2519884A1 (en) |
| GB (1) | GB1504320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT14418U1 (en) * | 2014-06-05 | 2015-11-15 | Binder Co Ag | Process for the expansion of sand grain raw material |
| CN116333771A (en) * | 2023-05-10 | 2023-06-27 | 中国矿业大学 | Device and method for improving light oil yield of oil shale |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2851887A1 (en) * | 1978-11-30 | 1980-06-19 | Krupp Polysius Ag | METHOD FOR THE HEAT TREATMENT OF FINE GRAIN |
| JPS55144457A (en) * | 1979-04-24 | 1980-11-11 | Ishikawajima Harima Heavy Ind | Combustion control method for burning equipment with calcining burner |
| CN109160749B (en) * | 2018-11-09 | 2021-06-15 | 余松涛 | Internal circulation fine particle lime shaft kiln and calcining method thereof |
| EP4247767B1 (en) * | 2021-02-12 | 2024-01-17 | thyssenkrupp Polysius GmbH | Method for thermal treatment of air-dispersible raw material |
| BE1029102B1 (en) * | 2021-02-12 | 2022-09-12 | Thyssenkrupp Ag | Plant and method for the thermal treatment of airworthy raw material |
-
1975
- 1975-04-28 CA CA225,628A patent/CA1047765A/en not_active Expired
- 1975-05-02 GB GB1846175A patent/GB1504320A/en not_active Expired
- 1975-05-03 DE DE19752519884 patent/DE2519884A1/en active Pending
- 1975-05-06 JP JP5327875A patent/JPS5133772A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT14418U1 (en) * | 2014-06-05 | 2015-11-15 | Binder Co Ag | Process for the expansion of sand grain raw material |
| CN116333771A (en) * | 2023-05-10 | 2023-06-27 | 中国矿业大学 | Device and method for improving light oil yield of oil shale |
| CN116333771B (en) * | 2023-05-10 | 2023-10-20 | 中国矿业大学 | Device and method for improving light oil yield of oil shale |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5133772A (en) | 1976-03-23 |
| CA1047765A (en) | 1979-02-06 |
| DE2519884A1 (en) | 1975-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |