EP0094937A1 - Structure de passivation en continu pour du charbon desulfure - Google Patents

Structure de passivation en continu pour du charbon desulfure

Info

Publication number
EP0094937A1
EP0094937A1 EP82900293A EP82900293A EP0094937A1 EP 0094937 A1 EP0094937 A1 EP 0094937A1 EP 82900293 A EP82900293 A EP 82900293A EP 82900293 A EP82900293 A EP 82900293A EP 0094937 A1 EP0094937 A1 EP 0094937A1
Authority
EP
European Patent Office
Prior art keywords
coal
pulverant
movement
path
baffle
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Withdrawn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
EP82900293A
Other languages
German (de)
English (en)
Inventor
F.Allen Grove
Philip R. Larue
Martin L. Chappell
Anthony J. Chinnici
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 EP0094937A1 publication Critical patent/EP0094937A1/fr
Withdrawn legal-status Critical Current

Links

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
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/02—Treating solid fuels to improve their combustion by chemical means
    • 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
    • B01F25/70—Spray-mixers, e.g. for mixing intersecting sheets of material
    • B01F25/72—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles
    • B01F25/721—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles for spraying a fluid on falling particles or on a liquid curtain

Definitions

  • This invention relates to treatment of pulverant
  • this in ⁇ vention is concerned with apparatus for treatment of pulverant coal while moving in a continuous-line operation, ' after extraction of sulfur, to inhibit reabsorption of sulfur by the coal.
  • FIG. 1 is a schematic view, with portions cut away and portions shown in dotted lines, of apparatus embodying the invention?
  • FIG. 2 is an elevational view of a portion of the apparatus of FIG. 1.
  • feed conveyor 10 delivers pulverant coal into passivation chamber 12 and conveyor 14 delivers passivated coal, after passage through passivation chamber 12 for stockpiling.
  • enclosure which can be at least partially open to ambient atmosphere at its charge and discharge ends for work product.
  • An elongated confinement path for movement and treatment of work product is defined largely by side- walls 16, 17 and 18, 19 (FIG. 2) which are vertically
  • An entrance chute portion 20 circumscribes a por ⁇ tion of feed conveyor 10 for receiving pulverant coal and includes top closure wall 22. Pulverant coal is delivered
  • conveyor 10 for downward movement along the elongated confinement path, as indicated, toward a bottom discharge opening 26 (FIG. 2) contiguous to conveyor 14.
  • Baffle means are provided along the confinement path and include a plurality of individual baffles 30, 31, 32, and 33 extending in angled relationship into such elon ⁇ gated travel path for work product. Such individual baffles are vertically spaced along the elongated confinement path . with each having an upper contact surface which is down ⁇ wardly sloped, preferably with an angle of about 55° between such surface and the horizontal for receiving downwardly falling pulverant coal. These baffles change the direction of movement of pulverant coal in the confinement path expos- ing all surfaces of the coal.
  • Pulverant coal delivered by conveyor 10 falls onto baffle 30.
  • the pulverant coal rolls downwardly off baffle
  • the pulverant coal contacts the upper surface of baffle 31 and rolls down- wardly off distal end 37; the pulverant coal continues in this zig-zag pattern, being directed to baffle 32, off distal end 38, onto baffle 33, and off distal end 39 for exit a ' t discharge opening 26 onto conveyor 14.
  • a passivating agent for chemically active sites from which sulfur has been removed includes carbon dioxide which can be provided in the form of carbolic acid.
  • the present invention provides repeated impinge ⁇ ment of passivat.ing agent, and extended contact, with the pulverant coal along substantially the full travel path within the passivating chamber.
  • passivating agent injec ⁇ tion means are spaced vertically along the confinement path. Individual injectors are distributed in juxtaposition to each of the distal ends of the baffles to contact pulverant coal with passivating agent on all its surfaces without impeding forward movement of work product. For this purpose passivation agent is injected at an angle transverse to the continuous-line direction of movement and avoiding an upward component of injection which would significantly impede downward rate of movement of the work product.
  • injector 40 is located to inject passiva ⁇ ting agent to contact pulverant coal falling from distal end 36 of baffle 30; injector 41 is positioned to contact pul- verant coal falling from distal end 37 of baffle 31; injector 42 is positioned to impinge passivating agent on pulverant coal falling from distal end 38 of baffle 32;- and, injector 43 is positioned to impinge passivating agent on pulverant coal falling from distal end 39 of baffle 33 enroute to discharge opening 26.
  • injection manifolds are vertic ally spaced to provide a plurality of injection outlets for passivating agent at the selected vertically spaced levels along the pulverant coal travel path.
  • the Opening for con- veyor 10 is shown in dotted lines at 50. From entrance chute portion 20, the cross-sectional area of passivating chamber is decreased by portions of sidewalls 54, 56 which provide a decreasing cross section enabling use of a rela ⁇ tively narrow-width belt, compared to that of feed conveyor
  • Manifold 60 directs passivating agent from a plurality of ' injectors to impinge on pulverant coal as
  • manifold 61 is at a second downwardly spaced level
  • manifold 62 is at a third downwardly spaced level
  • manifold 63 is
  • the pulverant coal is contacted on all its surf ⁇ aces during its downward movement to passivate the sites from which sulfur has been removed.
  • the structure is pre ⁇ sented so as to accomplish such contact without impeding desired movement of coal in continuous-line operations.
  • Belt 66 of feed conveyor 10 is selected to spread the pulverant coal in a laterally-wide shallow-depth pattern so that the coal has a shallow depth dimension in confront ⁇
  • the cross-sectional configuration at the entry portion of the passivation chamber accommodates such laterally-wide feed pattern.
  • the conveyor feeds into the wide dimension of the entrance chute to accommodate the wide lateral dimension of the feed conveyor belt; passivating agent injection penetrates the shallow depth dimension of the coal.
  • belt 66 has a lateral dimension
  • entrance chute 20 has a width dimension of about five feet when a four-foot feed conveyor belt is used.
  • the chamber as viewed in FIG. 1, has a depth dimension of about three feet. This depth can remain about the same along the longitudinal travel path with portions of the sidewalls 18, 19 gradually decreasing the lateral cross section, as shown in
  • the entrance cross-sectional opening should typically be about fifteen square feet and the discharge cross-sectional opening should be about six square feet for piling the passivated pulverant coal .on a discharge conveyor belt having about 'half the lateral dimension of feed conveyor ' belt 66, e.g. twenty-four to thirty inches.
  • the overall height of the passivation zone is about ten feet with the manifolds distributed between the entrance opening and the discharge end at about two-

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

Dispositif de traitement de charbon pulvérulant désulfuré permettant de passiver économiquement les endroits d'où le charbon a été extrait par traitement au moyen d'un agent fluide de passivation dans une opération en continu. On établit pour le charbon pulvérulant un chemin de déplacement s'étendant longitudinalement. La direction de mouvement du charbon est modifiée le long de ce chemin de déplacement, sans avoir recours à des impulsions pneumatiques ou à des entraînements mécaniques, de manière à exposer au traitement toutes les surfaces du charbon pulvérulant. L'agent fluide de passivation est injecté à plusieurs niveaux (60-63) le long du chemin de traitement; l'emplacement et le nombre de ces niveaux d'injection est déterminé par rapport à des déflecteurs (30-33) qui provoquent des modifications angulaires dans la direction de déplacement du charbon pulvérulant par rapport au chemin de déplacement du charbon s'étendant longitudinalement vers le bas.
EP82900293A 1981-11-30 1981-11-30 Structure de passivation en continu pour du charbon desulfure Withdrawn EP0094937A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1981/001598 WO1983001909A1 (fr) 1981-11-30 1981-11-30 Structure de passivation en continu pour du charbon desulfure

Publications (1)

Publication Number Publication Date
EP0094937A1 true EP0094937A1 (fr) 1983-11-30

Family

ID=22161531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82900293A Withdrawn EP0094937A1 (fr) 1981-11-30 1981-11-30 Structure de passivation en continu pour du charbon desulfure

Country Status (3)

Country Link
EP (1) EP0094937A1 (fr)
AU (1) AU8006382A (fr)
WO (1) WO1983001909A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111495121A (zh) * 2020-04-24 2020-08-07 周力 一种脱硫脱硝装置吸收塔现场制作安装施工工艺

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO157510C (no) * 1985-11-29 1988-03-30 Nodest Vei As Fremgangsmaate og anordning for blanding av grusmaterialer og bitumen.
DE20114202U1 (de) * 2001-08-30 2002-02-07 Lindner Anton Sprühkasten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1218250A (en) * 1915-07-03 1917-03-06 John Fox Grain-pickler.
GB581849A (en) * 1944-05-08 1946-10-28 Newton Chambers & Co Improvements relating to the mixing of materials
GB1018668A (en) * 1962-08-08 1966-01-26 Onoda Cement Co Ltd An apparatus for ageing quicklime
US3337194A (en) * 1965-08-09 1967-08-22 Phillips Petroleum Co In-line blender
US3756791A (en) * 1971-06-09 1973-09-04 Bethlehem Steel Corp Al and or coal derivatives method for simultaneously calcining and desulfurizing agglomerates co
US4288231A (en) * 1979-11-13 1981-09-08 Microfuels, Inc. Coal treatment process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8301909A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111495121A (zh) * 2020-04-24 2020-08-07 周力 一种脱硫脱硝装置吸收塔现场制作安装施工工艺

Also Published As

Publication number Publication date
AU8006382A (en) 1983-06-17
WO1983001909A1 (fr) 1983-06-09

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