EP0055748A1 - Mittel in ofenanlagen - Google Patents

Mittel in ofenanlagen

Info

Publication number
EP0055748A1
EP0055748A1 EP19810902008 EP81902008A EP0055748A1 EP 0055748 A1 EP0055748 A1 EP 0055748A1 EP 19810902008 EP19810902008 EP 19810902008 EP 81902008 A EP81902008 A EP 81902008A EP 0055748 A1 EP0055748 A1 EP 0055748A1
Authority
EP
European Patent Office
Prior art keywords
air supply
plate
grate
means according
supply duct
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.)
Withdrawn
Application number
EP19810902008
Other languages
English (en)
French (fr)
Inventor
Sjunne Johansson
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0055748A1 publication Critical patent/EP0055748A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H13/00—Grates not covered by any of groups F23H1/00-F23H11/00
    • F23H13/06—Dumping grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H1/00—Grates with solid bars
    • F23H1/02—Grates with solid bars having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F23J1/06—Mechanically-operated devices, e.g. clinker pushers

Definitions

  • the present invention relates to a means in furnace installations for the discharge of combustion residues from a fire grate.
  • a means according to the present invention which is substantially characterized by a discharging means exhibiting at least one air supply duct designed to supply air to the residues of burnt materials, which arrive in contact with the discharging means.
  • FIG. 1 illustrates a means in the form of an oscillating conveyor designed according to the invention.
  • a furnace grate which in the drawing is indicated with the reference digit 1, and which can be of any suitable design, in the illustrated example exhibits slit-shaped air flow ducts 2.
  • Fuel comprising solid material such as for example wood chips, sawdust, peat and coal cinder, is displaced along said furnace grate 1 according to its combustion, and the air supply for the combustion takes place through said slit-shaped air flow ducts 2 from the underside of said grate 1.
  • the forward feed of the fuel can by way of example be made by means of rakes, not shown in the drawing, or in any other suitable manner. This transportation of fuel is intended to take place at a speed chosen to the effect that the fuel shall be substantially completely burnt, when it arrives at the edge 3 of the grate 1.
  • a discharging conveyor 4 which in the illustrated example comprises an. oscillating conveyor 4, but can of course comprise any kind of suitable conveyors.
  • a worm conveyor can be used.
  • the oscillation conveyor 4 illustrated in the drawing is formed by a grate plate 4 extending along the leading edge 3 of the furnace grate 1 in the direction of feed of the fuel, said grate plate 4 on its top side exhibiting air flow openings 5 similar to the air flow openings 2 arranged at the furnace grate 1.
  • the plate 4 is at one end pivoted on a substantially horizontal pivoting shaft 6.
  • the other end of the plate 4 is supported by an arm 7 of an articulation mechanism, which at its other end is pivoted on a pivot 8 projecting sidewise from the plate 4.
  • the arm 7 is at its other end pivoted on a pivot
  • At least one air supply duct 12 is provided, which is closed at one end, and from which smaller crosswise extending ducts 13 communicate with said air flow openings 5 located on the top side of the plate.
  • the air supply duct 12 is at its open rear end via a flexible connecting pipe 14 connected with an air supply means 15, which by way of example can comprise a fan 15.
  • the function of the means described above is the one that air from the fan 15 via the connecting pipe 14 is conducted to the air supply duct 12, from where it flows through the crosswise extending ducts 13 and out through the air flow openings 5 to the material deposited on the plate 4.
  • This air supply makes possible that a combustion of non-burnt material can take place while this material is fed forward in the longitudinal direction of the plate, and the thermal efficiency of the furnace is thereby increased, as substantially all the fuel is completely burnt thanks to the present means.
  • the discharging conveyor can be designed in a great many ways. If this conveyor comprises a worm, an air supply duct can preferably be arranged at its centric shaft in such a manner that combustion of the fuel is also made possible during the discharge of the fuel by means of the worm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
EP19810902008 1980-07-08 1981-07-02 Mittel in ofenanlagen Withdrawn EP0055748A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8005013 1980-07-08
SE8005013 1980-07-08

Publications (1)

Publication Number Publication Date
EP0055748A1 true EP0055748A1 (de) 1982-07-14

Family

ID=20341391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810902008 Withdrawn EP0055748A1 (de) 1980-07-08 1981-07-02 Mittel in ofenanlagen

Country Status (2)

Country Link
EP (1) EP0055748A1 (de)
WO (1) WO1982000188A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9221821D0 (en) * 1992-10-16 1992-12-02 Erithglen Ltd Furnaces
DE19935597C2 (de) * 1999-08-03 2002-03-14 Steag Encotec Gmbh Feuerung
US7559725B2 (en) 2005-11-14 2009-07-14 General Kinematics Corporation Conveyor for and method of conveying heated material
US8826835B1 (en) 2011-01-18 2014-09-09 General Kinematics Corporation Controlling carbon content in conveyed heated material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US728411A (en) * 1902-09-23 1903-05-19 John Forcer Crawford Furnace.
US1052493A (en) * 1912-01-19 1913-02-11 Edward L Martin Shaker-grate.
US1662237A (en) * 1922-04-26 1928-03-13 Sanford Riley Stoker Company Ash-discharge mechanism for mechanical stokers
US2895436A (en) * 1956-01-23 1959-07-21 Riley Stoker Corp Fuel burning apparatus
SE326250B (de) * 1968-05-06 1970-07-20 Goetaverken Ab
US4231304A (en) * 1975-04-30 1980-11-04 Cornell-Hoskinson Manufacturing Corp. Combustion apparatus utilizing an auger having an integral air supply system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8200188A1 *

Also Published As

Publication number Publication date
WO1982000188A1 (en) 1982-01-21

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19820920