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JPS5643395A - Recovering method of coal from slurry of raw coal - Google Patents

Recovering method of coal from slurry of raw coal

Info

Publication number
JPS5643395A
JPS5643395A JP11884979A JP11884979A JPS5643395A JP S5643395 A JPS5643395 A JP S5643395A JP 11884979 A JP11884979 A JP 11884979A JP 11884979 A JP11884979 A JP 11884979A JP S5643395 A JPS5643395 A JP S5643395A
Authority
JP
Japan
Prior art keywords
coal
slurry
water
pulverized coal
dehydrator
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.)
Pending
Application number
JP11884979A
Other languages
Japanese (ja)
Inventor
Kenichi Nagata
Yoji Kitaoka
Akira Shiozawa
Katsuya Sakai
Jisaku Tanimichi
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co Ltd
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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP11884979A priority Critical patent/JPS5643395A/en
Publication of JPS5643395A publication Critical patent/JPS5643395A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/04—Arrangements of recuperators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

PURPOSE:To recover efficiently dried coal having a low water content, by a method wherein a mineral oil is added to a slurry of raw coal, the resulting slurry is transported through a pipe line while granulating, coarse particulate coal and granulated coal are drawn out from bottom, and ungranulated pulverized coal is withdrawn as overflow. CONSTITUTION:Coal 2 in a ship 1 is slurried in water from a water tank 3. The slurry is transferred to a mixer 6 where the slurry is mixed with a mineral oil from an oil tank 7. Pulverized coal having a particle diameter of not more than 1mm. is agglomerated, granulated and transferred to a storage tank 10 where a slurry contg. granulated coal and coarse particulate coal having a particle diameter of 1-30mm. settles out, and pulverized coal is overflowed. The slurry contg. coal having a larger diameter is drawn out from the bottom of the storage tank 10 and is supplied to a dehydrator 12 where the coal is recovered as dehydrated large-grain coal 13. A slurry of the pulverized coal again settles out and is recovered as dehydrated pulverized coal 17 in a dehydrator 12'. A small amount of pulverized coal and ash which are present in water from the dehydrator 12 are separated in a receiver tank 18. Pulverized coal-contg. water is returned to a concentration tank 15. The ash 20 is recovered as a solid. Water from the dehydrator 12' is treated in the same manner.
JP11884979A 1979-09-18 1979-09-18 Recovering method of coal from slurry of raw coal Pending JPS5643395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11884979A JPS5643395A (en) 1979-09-18 1979-09-18 Recovering method of coal from slurry of raw coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11884979A JPS5643395A (en) 1979-09-18 1979-09-18 Recovering method of coal from slurry of raw coal

Publications (1)

Publication Number Publication Date
JPS5643395A true JPS5643395A (en) 1981-04-22

Family

ID=14746655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11884979A Pending JPS5643395A (en) 1979-09-18 1979-09-18 Recovering method of coal from slurry of raw coal

Country Status (1)

Country Link
JP (1) JPS5643395A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987006497A1 (en) * 1986-04-24 1987-11-05 The Broken Hill Proprietary Company Limited Production of hardened coal agglomerates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987006497A1 (en) * 1986-04-24 1987-11-05 The Broken Hill Proprietary Company Limited Production of hardened coal agglomerates

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