EP0163355A2 - Appareillage pour la stabilisation de mélanges de charbon, d'huile et d'eau - Google Patents

Appareillage pour la stabilisation de mélanges de charbon, d'huile et d'eau Download PDF

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Publication number
EP0163355A2
EP0163355A2 EP85200841A EP85200841A EP0163355A2 EP 0163355 A2 EP0163355 A2 EP 0163355A2 EP 85200841 A EP85200841 A EP 85200841A EP 85200841 A EP85200841 A EP 85200841A EP 0163355 A2 EP0163355 A2 EP 0163355A2
Authority
EP
European Patent Office
Prior art keywords
chamber
duct
constant
section
equipment
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Withdrawn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
EP85200841A
Other languages
German (de)
English (en)
Other versions
EP0163355A3 (fr
Inventor
Mariano Carello
Fabio Romanini
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.)
Agip Petroli SpA
Original Assignee
Agip Petroli SpA
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 Agip Petroli SpA filed Critical Agip Petroli SpA
Publication of EP0163355A2 publication Critical patent/EP0163355A2/fr
Publication of EP0163355A3 publication Critical patent/EP0163355A3/fr
Withdrawn legal-status Critical Current

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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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
    • C10L1/324—Dispersions containing coal, oil and water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers

Definitions

  • the present invention relates to a static emulsifier for the production of stable mixtures of water, coal and oil.
  • Such a device is constituted by a convergent conical duct (1), followed by a short length of constant-section duct (2) ending into a plenum chamber (3) of cylindrical section in communication with a discharge duct (4).
  • the mixture to be emulsified (5) delivered under pressure to the convergent duct runs, at high speed,through the short duct of constant section and enters then the plenum chamber; inside this chamber the emulsifying of the mixture occurs, the emulsified mixture leaving (6) the device through the discharge duct.
  • the device operates on the basis of the superimposition of a plurality of physical phenomena whose effect is of notably reducing the size of water drops, thus originating a homogeneous emulsion.
  • Said device is poorly suitable to stabilize mixtures of coal, fuel oil and water.
  • the equipment which is the object of the present invention comprises a feeding duct in communication with a duct of convergent cone-frustum shape, which continues into a duct of constant section, leading to a chamber [chamber (a)] whose transversal dimensions are greater than those of the constant-section duct, wherein the chamber (a) has a volume which can be varied as requir ed by means of a movable adjustable bottom and is provided in its lateral wall with a set of holes, said holes placing the chamber (a) in communication with a discharge chamber [chamber (b)3 annular and coaxial with the chamber (a).
  • the angle between the greater base and the lateral surface of the cone-frustum shaped duct is preferably comprised between 50° and 70° and more preferably is in the region of 60°.
  • the chamber (a), plenum chamber, is preferably of cylindrical shape.
  • the feeding duct, the convergent cone-frustum shaped duct and the constant-section duct can be provided in a single metal block or in two or more metal blocks.
  • the diameter of the chamber (a) and the diameter of the constant-section-duct are so selected as to obtain between the inlet of the constant-section duct and the chamber (a) a drop of mixture pressure greater then 3 bar, more preferably of about 5 bar.
  • the diameter of the plenum chamber equal to the diameter of the feeding duct.
  • the mixture of coal, oil and water (1) enters, delivered under pressure, the equipment, runs through the feed ign duct (2), then through the convergent cone-frustum shaped duct (3), subsequently at high speed through the duct of constant section (4), and penetrates then into the chamber (5) [chamber (a)], called plenum chamber, of cylindrical shape with movable adjustable bottom (6), go ing to collide with the same bottom of said chamber.
  • the mixture after having been homogenized, passes from the plenum chamber through a plurality of holes (7) uniformly distributed in the later al wall (8) of said chamber into the discharge chamber (9) annular and coaxial to the said plenum chamber and leaves (10) the device.
  • the discharge chamber is bounded by the outer wall of the plenum chamber and by a cylindrical manifold (11).
  • the feeding duct, the cone-frustum shaped duct and the duct of constant section are made in two blocks (12) and (13).
  • the movable adjustable bottom allows the length and obviously the volume of the plenum chamber to be varied above all on the basis of the flow rate and of the composition of the mixture.
  • the ground coal has been mixed first with an amount of water of about 22.2% by weight relatively to the coal and then with heavy fuel oil; the mixture formed has been homogenized by stabilization in the equipment described in fig. 2.
  • the diameter of the plenum chamber and the diameter of the constant-section duct have been so selected, as to obtain a 5 bar drop in mixture pressure between the inlet of the constant-section duct and the plenum chamber.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Liquid Carbonaceous Fuels (AREA)
EP85200841A 1984-05-29 1985-05-23 Appareillage pour la stabilisation de mélanges de charbon, d'huile et d'eau Withdrawn EP0163355A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT21137/84A IT1183056B (it) 1984-05-29 1984-05-29 Apparecchiatura per stabilizzare miscele di carbone, olio e acqua
IT2113784 1984-05-29

Publications (2)

Publication Number Publication Date
EP0163355A2 true EP0163355A2 (fr) 1985-12-04
EP0163355A3 EP0163355A3 (fr) 1988-11-30

Family

ID=11177291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85200841A Withdrawn EP0163355A3 (fr) 1984-05-29 1985-05-23 Appareillage pour la stabilisation de mélanges de charbon, d'huile et d'eau

Country Status (3)

Country Link
EP (1) EP0163355A3 (fr)
DK (1) DK236885A (fr)
IT (1) IT1183056B (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344752A (en) * 1980-03-14 1982-08-17 The Trane Company Water-in-oil emulsifier and oil-burner boiler system incorporating such emulsifier
US4430251A (en) * 1981-09-29 1984-02-07 Hoffert Manufacturing Co., Inc. High energy emulsifier

Also Published As

Publication number Publication date
EP0163355A3 (fr) 1988-11-30
IT8421137A0 (it) 1984-05-29
IT1183056B (it) 1987-10-05
DK236885D0 (da) 1985-05-28
DK236885A (da) 1985-11-30

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Inventor name: CARELLO, MARIANO