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 furnaces

Info

Publication number
GB810477A
GB810477A GB1288655A GB1288655A GB810477A GB 810477 A GB810477 A GB 810477A GB 1288655 A GB1288655 A GB 1288655A 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
Application number
GB1288655A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOHLENBERGBAU LEITURG DEUTSCHE
Original Assignee
KOHLENBERGBAU LEITURG DEUTSCHE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE810477X priority Critical
Application filed by KOHLENBERGBAU LEITURG DEUTSCHE filed Critical KOHLENBERGBAU LEITURG DEUTSCHE
Publication of GB810477A publication Critical patent/GB810477A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23BMETHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B7/00Combustion techniques; Other solid-fuel combustion apparatus
    • F23B7/002Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements
    • F23B7/007Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements with fluegas recirculation to combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H9/00Revolving-grates; Rocking-grates

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.
GB1288655A 1955-01-26 1955-05-04 Improvements in or relating to the burning of solid fuels in furnaces Expired GB810477A (en)

Priority Applications (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
GB1288655A 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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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