US3420195A - Combination incinerator and wet scrubber arrangement - Google Patents

Combination incinerator and wet scrubber arrangement Download PDF

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Publication number
US3420195A
US3420195A US662972A US3420195DA US3420195A US 3420195 A US3420195 A US 3420195A US 662972 A US662972 A US 662972A US 3420195D A US3420195D A US 3420195DA US 3420195 A US3420195 A US 3420195A
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US
United States
Prior art keywords
gases
wet scrubber
incinerator
furnace
outlet
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.)
Expired - Lifetime
Application number
US662972A
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English (en)
Inventor
Peter W Kalika
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Application granted granted Critical
Publication of US3420195A publication Critical patent/US3420195A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/09—Furnace gas scrubbers

Definitions

  • the combination incinerator and wet scrubber of the invention incorporates an incinerator having an inner refractory lined wall exposed to the combustion process, and a spaced, outer second wall.
  • the cleaned, moisture-laden gases exhausting from the Wet scrubber are passed through the space between the double incinerator Walls before being discharged to the atmosphere. This serves the two-fold purpose of cooling the refractory lined wall and also raising the temperature of the saturated gases, thereby reduc ing the likelihood of a visible steam plume.
  • FIG. 1 is a sectional side view of an incinerator and Wet scrubber arrangement constructed in accordance with my invention.
  • incinerator for burning refuse introduced into the furnace through opening 12.
  • Air to support combustion of the refuse on grate 14 is supplied by fan 17 and duct 19.
  • Ash is discharged from the rear of the grate into ashpit 15.
  • the hot gases, laden with ash particles, flow upwardly in the furnace, around arch 16, and exit through the furnace outlet 18 into duct 22.
  • the gases then flow through wet scrubber 20, where they are subjected to a series of scrubbing sprays.
  • the ash is entrained by the water droplets, and thus separated from the gas stream and deposited in the scrubber sump.
  • the cleaned, cool, saturated gases leave the wet scrubber by means of duct 24, and enter plenum duct or manifold 26, which encircles the upper portion of the furnace.
  • the upper portion of the incinerator is of double-Wall construction, there being an inner refractory lined wall Patented Jan. 7, 1969 28, and an outer metal casing 30.
  • Duct 26 feeds the cleaned, cool, saturated gases into the space 31 around the entire periphery of the incinerator. The gases are then exhausted to the atmosphere through upper outlet 32.
  • the gases absorb heat from the refractory walls 28, preventing them from becoming overheated, which could cause spalling or cracking.
  • the temperature of the gas is raised. This makes them more buoyant, and because the moisture in the gases then represents a lower percentage of saturation, there is less likelihood that a visible steam plume will be seen in the gases exiting from outlet 32.
  • the gases coming from the wet scrubber only pass through the double-walled construction in the upper portion of the furnace. Air from the forced draft fan 17 is used to cool the walls of the lower portion of the furnace. It should be understood that the gases from the wet scrubber could be used to cool the entire furnace wall in some installations. The extent of wall cooled in any given installation must be determined in accordance with the temperatures involved and the quantity of scrubbed combustion gases available.
  • a furnace for burning fuel therein having spaced, double walls, said furnace having an outlet through which the hot, dirty combustion gases leave the furnace, scrubber means having an inlet and an outlet, the inlet of which is connected to the furnace outlet, said scrubber means including water sprays for reducing the temperature of the gases, and removing impurities therefrom, the outlet of the scrubber means being connected to the space between the double walls of the furnace, so that the relatively cool, moisture-laden gases in passing through this space remove heat from the inner furnace wall, raising the temperature of the gases and the moisture contained therein, thereby reducing the possibility of a steam plume in the gases flowing from the space between the double walls.
  • a furnace for burning fuel therein having an inner refractory lined wall, and an outer wall, there being a space between the two walls, inlet means and outlet means for said space, said furnace having an outlet through which the hot, dirty combustion gases leave the furnace, wet scrubber means having an inlet and an outlet, the inlet of which is connected to thefurnace outlet, said wet scrubber means including water spray means for removing impurities from the gases and reducing the temperature thereof, the outlet of the wet scrubber means being connected to the inlet means of said space, whereby the cleaned, cooled, saturated gases passing therethrough cool the refractory lined wall, and absorb heat therefrom, thereby reducing the possibility of a steam plume of the gases exiting from the outlet of said space.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chimneys And Flues (AREA)
  • Incineration Of Waste (AREA)
US662972A 1967-08-24 1967-08-24 Combination incinerator and wet scrubber arrangement Expired - Lifetime US3420195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66297267A 1967-08-24 1967-08-24

Publications (1)

Publication Number Publication Date
US3420195A true US3420195A (en) 1969-01-07

Family

ID=24659986

Family Applications (1)

Application Number Title Priority Date Filing Date
US662972A Expired - Lifetime US3420195A (en) 1967-08-24 1967-08-24 Combination incinerator and wet scrubber arrangement

Country Status (7)

Country Link
US (1) US3420195A (cs)
BE (1) BE717216A (cs)
ES (1) ES355541A1 (cs)
FR (1) FR1569528A (cs)
GB (1) GB1189789A (cs)
IL (1) IL30154A0 (cs)
NL (1) NL6809962A (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788244A (en) * 1972-12-20 1974-01-29 Combustion Engi Inc Combustion chamber including dry and wet collection of particulate matter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2501832A1 (fr) * 1981-03-13 1982-09-17 Bonneville Simone Epurateur - echangeur thermique pour gaz de combustion

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3320906A (en) * 1966-04-20 1967-05-23 Combustion Eng Fuel burning process and apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3320906A (en) * 1966-04-20 1967-05-23 Combustion Eng Fuel burning process and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3788244A (en) * 1972-12-20 1974-01-29 Combustion Engi Inc Combustion chamber including dry and wet collection of particulate matter

Also Published As

Publication number Publication date
FR1569528A (cs) 1969-05-30
BE717216A (cs) 1968-12-27
ES355541A1 (es) 1970-04-16
IL30154A0 (en) 1968-08-22
GB1189789A (en) 1970-04-29
NL6809962A (cs) 1969-02-26

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