GB810477A - Improvements in or relating to the burning of solid fuels in furnaces - Google Patents
Improvements in or relating to the burning of solid fuels in furnacesInfo
- Publication number
- GB810477A GB810477A GB12886/55A GB1288655A GB810477A GB 810477 A GB810477 A GB 810477A GB 12886/55 A GB12886/55 A GB 12886/55A GB 1288655 A GB1288655 A GB 1288655A GB 810477 A GB810477 A GB 810477A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bars
- products
- chamber
- recycled
- boiler
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B7/00—Combustion techniques; Other solid-fuel combustion apparatus
- F23B7/002—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements
- F23B7/007—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements with fluegas recirculation to combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H9/00—Revolving-grates; Rocking or shaking grates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
810,477. Solid fuel furnaces. DEUTSCHE KOHLENBERGBAU-LEITUNG. May 4, 1955 [Jan. 26, 1955], No. 12886/55. Class 51 (1). Solid fuel is burnt in a furnace chamber, from which the ash is continually removed by agitation of the fuel bed, in the presence of a mixture of recycled gaseous combustion products and air, the oxygen content of which is about 15 to 17 per cent by volume. In a boiler, fuel from a hopper 1, Fig. 1, drops into a chamber 2 whilst primary air passes transversely through the fuel bed and secondary air is introduced at 6 into a chamber 5. Combustion products are drawn through a duct 9 having a valve 11 from a gas pass 8 by a fan 10 and recycled, via ducting 14, to the chamber 2, a duct controlled by a valve 12 feeding air to mix with the products. The recycled products may be automatically or manually varied by controlling the fan 10 or valves 11, 12, such control depending either upon the boiler exit temperature of the products or upon the boiler or furnace output given, e.g. by the amount of steam generated or hot water supplied and the primary air supplied, respectively. Control may also depend upon the oxygen content of the mixture either automatically under the control of an oxygen analyser or manually by use of an oxygen gauge. Water, thermostatically controlled, may be automatically injected into the recycled products when the temperature of the latter exceeds a predetermined amount. The furnace grate 3 may have fixed bars 16, Fig. 2, alternating with bars 17 which are shaken by being pivotally attached at 18, 19, to reciprocable bars 20, 21. A modified grate has alternate bars 22, Fig. 3, lifted by a lever mechanism 24, 25 about a pivot bar 23. The bars may be shaped as shown in Fig. 4.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE810477X | 1955-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB810477A true GB810477A (en) | 1959-03-18 |
Family
ID=6724886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12886/55A Expired GB810477A (en) | 1955-01-26 | 1955-05-04 | Improvements in or relating to the burning of solid fuels in furnaces |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB810477A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509434A1 (en) * | 1980-06-02 | 1983-01-14 | Cottrell Tech Res Inc | METHOD AND APPARATUS FOR THE RECIRCULATION OF CARBON GAS IN A SOLID FUEL BOILER AND BOILER USING THE SAME |
CN102679390A (en) * | 2012-04-28 | 2012-09-19 | 西安交通大学 | Compound furnace arch and compound secondary air structure for cooperatively controlling generation of nitrogen oxide (NOX) |
CN104266217A (en) * | 2014-10-09 | 2015-01-07 | 西安交通大学 | Grate-fired furnace multipath denitration system and denitration method thereof |
-
1955
- 1955-05-04 GB GB12886/55A patent/GB810477A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2509434A1 (en) * | 1980-06-02 | 1983-01-14 | Cottrell Tech Res Inc | METHOD AND APPARATUS FOR THE RECIRCULATION OF CARBON GAS IN A SOLID FUEL BOILER AND BOILER USING THE SAME |
CN102679390A (en) * | 2012-04-28 | 2012-09-19 | 西安交通大学 | Compound furnace arch and compound secondary air structure for cooperatively controlling generation of nitrogen oxide (NOX) |
CN102679390B (en) * | 2012-04-28 | 2014-07-23 | 西安交通大学 | Compound furnace arch and compound secondary air structure for cooperatively controlling generation of nitrogen oxide (NOX) |
CN104266217A (en) * | 2014-10-09 | 2015-01-07 | 西安交通大学 | Grate-fired furnace multipath denitration system and denitration method thereof |
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