GB351621A - - Google Patents
Info
- Publication number
- GB351621A GB351621A GB1156930A GB1156930A GB351621A GB 351621 A GB351621 A GB 351621A GB 1156930 A GB1156930 A GB 1156930A GB 1156930 A GB1156930 A GB 1156930A GB 351621 A GB351621 A GB 351621A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- burner
- fuel
- diaphragm
- furnace
- 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
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C99/00—Subject-matter not provided for in other groups of this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
- F23C2700/06—Combustion apparatus using pulverized fuel
- F23C2700/063—Arrangements for igniting, flame-guiding, air supply in
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
351,621. Pulverulent-fuel burners. TODD DRY DOCK, ENGINEERING & REPAIR CORPORATION, 25, Broadway, New York, U.S.A. April 11, 1930, No. 11569. Convention date, April 22, 1929. [Class 75 (i).] The vertical hollow furnace front through which the pulverized fuel burner 8 projects is provided with a diaphragm 5 having an extended passage way for heating air which is used to convey the fuel from the supply hopper 15 to the burner. The hollow front is composed of a forward plate 6, an annular wall 7 and the plate or diaphragm 5 forming a boundary for the mouth of the furnace. The burner 8 of conoidal form has a radial flange 9 coacting with the diaphragm 5 to close the mouth of the furnace, and is supplied with fuel and primary air through a pipe 12 from a pulverizer 14 fed by the hopper 15. A blower 13 supplies secondary air to the hollow front through a duct 23. In front of the diaphragm 5 is arranged the air heating structure A, B formed in two parts bolted together as shown in Fig. 2 and having outer and inner flanges 18, 19 contacting with the diaphragm to form an enclosed air space divided by spaced curved webs 20, 21 to form an extended passage for air entering from the hollow front at 22. The heated air passes out through a pipe 17 to the pulverizer for use in conveying the pulverized coal to the burner. The secondary air is supplied to the fuel stream through apertures 25 increasing in width towards the rear, vanes or deflectors 26 guiding the streams of air tangentially, and direct flow of air into the furnace being prevented by closing members 29. Vanes 30 giving a whirling motion to the fuel and air are supported on an adjustable oil burner 44 fed by a pipe 47, which is used to heat up the furnace initially or when the boiler is operating at low pressure. The secondary air supply is regulated by a conical sleeve 31 having apertures 32 and rotatable on the burner and controlled through gearing by a handle 41 to regulate the flow through the apertures 25. A set-screw 43 fixes the sleeve in adjusted position which is indicated by a pointer 42 coacting with a scale.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1156930XA | 1929-04-22 | 1929-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB351621A true GB351621A (en) | 1931-07-02 |
Family
ID=22362893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1156930A Expired GB351621A (en) | 1929-04-22 | 1930-04-11 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB351621A (en) |
-
1930
- 1930-04-11 GB GB1156930A patent/GB351621A/en not_active Expired
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