WO1992005233A1 - A manufacturing method for coal briquettes - Google Patents

A manufacturing method for coal briquettes Download PDF

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Publication number
WO1992005233A1
WO1992005233A1 PCT/FI1990/000223 FI9000223W WO9205233A1 WO 1992005233 A1 WO1992005233 A1 WO 1992005233A1 FI 9000223 W FI9000223 W FI 9000223W WO 9205233 A1 WO9205233 A1 WO 9205233A1
Authority
WO
WIPO (PCT)
Prior art keywords
ash
briquette
water
quenched
instance
Prior art date
Application number
PCT/FI1990/000223
Other languages
English (en)
French (fr)
Inventor
Reijo Tapani Kainulainen
Original Assignee
Reijo Tapani Kainulainen
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 Reijo Tapani Kainulainen filed Critical Reijo Tapani Kainulainen
Publication of WO1992005233A1 publication Critical patent/WO1992005233A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders

Definitions

  • the mechanical wood processing industry produces large amounts of sawing waste and sawdust, which are used both in the chemical wood processing industry and in the production of heat in thermal stations.
  • a fairly common process in mid-sized thermal stations consists in burning this fuel on a kabliz fire grate, whence the ash falls through the grate bars to a water basin. The amount of ash produced in this common burning method represents about 3% of the saw waste being burned.
  • a mid-sized 11 MW thermal station produces about 4300 m 3 per year of ash with a density of about 200 kg/m 3 .
  • the ash may be used to manufacture briquettes which will burn slowly by glowing as charcoal does. Tests have shown that the average burning time for a briquette of 25 mm diameter and 10 mm length was about 40 minutes.
  • the food laboratory of the Technical Research Centre of Finland has indicated that the briquettes may be used to head food. The ash may be easily pressed into
  • Illustration 1 shows, in the form of a process diagram, an application of this invention.
  • section 1 represents the burning of the sawmill or similar waste in the thermal station, where the ash flows through the grate to a water basin underneath.
  • the ash quenched by the water is then transported by a conveyor or other suitable method of known technology to the briquette pressing machine 2 , which can also be supplied whenever necessary with additional combustible matter from the reservoir 3.
  • the briquettes are dried and possibly treated with a material such as glucose or other product to increase their strength in section 4, using known technology.
  • the final stage in section 5 consists in suitable packaging and storage for sales purpose.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Processing Of Solid Wastes (AREA)
PCT/FI1990/000223 1989-07-28 1990-09-24 A manufacturing method for coal briquettes WO1992005233A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI893608A FI86076C (fi) 1989-07-28 1989-07-28 Foerfarande foer framstaellning av kolbriketter.

Publications (1)

Publication Number Publication Date
WO1992005233A1 true WO1992005233A1 (en) 1992-04-02

Family

ID=8528799

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1990/000223 WO1992005233A1 (en) 1989-07-28 1990-09-24 A manufacturing method for coal briquettes

Country Status (2)

Country Link
FI (1) FI86076C (fi)
WO (1) WO1992005233A1 (fi)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB561147A (fi) *
US4309190A (en) * 1979-10-11 1982-01-05 Metallgesellschaft Ag Process of producing coal briquettes for gasification or devolatilization
US4657561A (en) * 1981-12-22 1987-04-14 Kawasaki Jukogyo Kabushiki Kaisha Method of recovering fuel from coal ash

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB561147A (fi) *
US4309190A (en) * 1979-10-11 1982-01-05 Metallgesellschaft Ag Process of producing coal briquettes for gasification or devolatilization
US4657561A (en) * 1981-12-22 1987-04-14 Kawasaki Jukogyo Kabushiki Kaisha Method of recovering fuel from coal ash

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DERWENT'S ABSTRACT, No. 85-315 284/50; & SU,A,1 157 048, publ. week 8550. *
DIALOG INFORMATION SERVICES, File 351, World Patent Index 81-91, Dialog accession No. 84-246129/40, ISHIKAWA H, "High calorific value solid fuel prepd. by blending high and low quality coals with carbonaceous industrial waste and briquetting"; & JP,A,59 147 091, 23-08-1984, 8440 (basic). *
DIALOG INFORMATION SERVICES, File 351, World Patent Index 81-91, Dialog accession No. 87-239258/34, GENYO KK, "Binder for fuel briquette - comprises coal ash discharged from power plant and conventional binder e.g. bentonite, lignin sulphonic acid, tar etc."; & JP,A,62 162 662, 18-07-1987, 8734 (Basic). *
DIALOG INFORMATION SERVICES, File 351, World Patent Index 81-91, Dialog accession No. 91-012482/02, ISHIKAWAJIMA-HARIMA JUKO, "Treatment of high unburnt ash in coal ash - by wet reforming coal ash, sepg. into high and low - unburnt ash mixing high-unburnt ash with C-heavy oil, supplying mixt. to burners"; & JP,A,2 287 *

Also Published As

Publication number Publication date
FI893608A (fi) 1991-01-29
FI86076B (fi) 1992-03-31
FI893608A0 (fi) 1989-07-28
FI86076C (fi) 1992-07-10

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