Abstract: A system for recovering as power the pressure and sensible heat of the gas discharged from the top of a blast furnace by guiding the gas to a dry-type dust collector for the removal of dust while maintaining the gas at the furnace top pressure and introducing the gas into a turbine for expansion. To protect the dry-type dust collector when the gas is run off from the furnace at an abnormally high temperature, a gas channel extending from the furnace to the dust collector is provided with at least one injector, which injects a cooling fluid into the gas in response to a signal from a temperature detecting sensor disposed close to the gas outlet of the dust collector. The sensor which is positioned near the dust collector outlet detects the temperature without the time delay attributable to the deposition of dust. With use of the dry-type dust collector, the gas can be fed to the turbine almost without cooling for the recovery of an increased amount of power.

Abstract: A device for eliminating carbon particulates from smoke including recirculating pressure water sprays within a spray booth mounted on a smoke stack, a conical deflector and a water collecting means mounted therein; the collected spray water being cleaned in a two compartment tank, partially filled with sand, and returned to the spray booth via a recirculation pump and a pressurized water reservoir.

Abstract: The device of the present invention utilizes a unitized scheme to erect a sulphur dioxide scrubber tower wherein a set of factory built constituent subunits are joined at location to produce a single functional unit. The functional units themselves preferably are adaptable for parallel grouping as necessary to insure the treatment capacity required for the emission rate of any given application or where otherwise appropriate for other process reasons.The temporary strength and rigidity necessary to maintain a subunit's critical geometric integrity throughout construction, transportation and erection processes is provided by a reusable exoskeletal support cradle. Preferably each subunit is initially constructed upon such a cradle. Alternatively, subunits are constructed in jigs at the factory and transferred to the support cradles before shipping to the construction site.

Abstract: A particulate separator of the concurrent flow type includes an inner cylinder mounted concentrically within a tapered conical outer cylinder which is closed at the outer return end. A fan unit is secured within the return end of the outer cylinder to draw air inwardly through the center cylinder, impart a centrifugal force thereon and imparting a tangential spin to the air moving outwardly and then rearwardly and back through the outer conical cylinder. The particulate matter within the fluid moves outwardly to the periphery of the outer cylinder as a result of centrifugal forces. The tangential spin imparted to the air cause the air to move in spiral return path with the conical cylinder establishing a decreasing cross section.

Abstract: A gas scrubber particularly adapted to purify a gas obtained by vaporization of a fluidizing content of wet organic wastes, comprising an upstream precipitation duct section and a downstream sedimentation section with water jets to enhance precipitation in the upstream duct section.

Abstract: Disclosed herein is a method for removing airborne particulates from an aerosol stream by first humidifying said aerosol with steam, and then cooling said aerosol with water to saturation temperature. Thereafter, the saturated aerosol is adiabatically cooled to a supersaturated state and maintained at supersaturation for a time sufficient to permit the growth and removal thereof of said particulates. Further disclosed is an apparatus adapted for practicing the method of the present invention and employing charged droplet scrubbing techniques to remove said particulates.

Abstract: The disclosure is of gas-cleaning apparatus comprising a chamber having a downwardly vertical gas and fluid flow path, with the gas and fluid moving at high velocity. One or more layers of solids is disposed across the path of gas and fluid flow, and these solids and the spaces between them act as multiple venturi scrubbers and impingement surfaces so that the gas is cleaned by agglomeration and absorption. A vibrator is coupled to the layers of solids for vibrating them to prevent matter removed from the gas from adhering thereto and blocking the passages therebetween.Also disclosed is a centrifugal cyclone separator, adapted to be coupled to the output of the above-described gas scrubber, comprising an upright chamber containing a rotatable cylinder carrying blades on its outer surface, the free edges of the blades being positioned close to the inner wall of the chamber. The blade configuration and high rotational velocity and long distance travel of the gases provide improved separating action.

Abstract: The disclosure is of gas-cleaning apparatus comprising a chamber having a downwardly vertical gas and fluid flow path, with the gas and fluid moving at high velocity. One or more layers of solids is disposed across the path of gas and fluid flow, and these solids and the spaces between them act as multiple venturi scrubbers and impingement surfaces so that the gas is cleaned by agglomeration and absorption. A vibrator is coupled to the layers of solids for vibrating them to prevent matter removed from the gas from adhering thereto and blocking the passages therebeween.Also disclosed is a centrifugal cyclone separator, adapted to be coupled to the output of the above-described gas scrubber, comprising an upright chamber containing a rotatable cylinder carrying blades on its outer surface, the free edges of the blades being positioned close to the inner wall of the chamber. The blade configuration and high rotational velocity and long distance travel of the gases provide improved separating action.

Abstract: Washing fluid is distributed in a scrubber or a stripper to treat a countercurrent gaseous or vaporous stream by spigots receiving fluid from a tray for discharge onto spray pipes underneath a nozzle at the end of the spigot. A casing surrounds the spigot in a concentrically-spaced relation to a point where slots in the spigot discharge fluid onto a spray plate carried on the lower end of the spigot above the nozzle. The spray plate on the spigot includes a base section with a slotted edge section having some of the slotted portions bent upwardly and others bent downwardly while others are completely removed. The base section supports downwardly-extending fingers that extend into space. A frame carried by the casing supports an upper and smaller spray plate above a lower and larger spray plate all beneath the nozzle in the spigot. The upper and lower spray plates each have upwardly- and downwardly-bent edge portions carried by a base plate.

Abstract: A method for removing dust and noxious materials from flue gases within a tall chimney through which the dust can be collected efficiently without increasing the operating cost of the boiler. A spraying device assembly is adapted to be mounted in a vertical portion of a chimney so as to save space.

Abstract: An improved method of exchanging heat between combustion gases from combustion of fossil fuel with air and a fluid to be heated is obtained by initially introducing into the exhaust gases a volatile medium to be vaporized by said gases and subsequently condensing the vaporized medium by cooling the obtained mixture of combustion gases and vaporized medium to a temperature below the dew point. The cooling is performed by the fluid to be heated. The new method reduces the contents of polluting ingredients in the exhaust combustion gases and will keep the heat exchange structures clean.

Abstract: An air washer comprises upper and lower plenum chambers which are separated by a panel which carries tubes. A spray nozzle above each tube is oriented to direct the conical spray it forms into the tube to wet the lower half of the bore of the tube. An inlet duct communicates with the lower plenum chamber. A tank is provided below the lower plenum chamber. Filter apparatus is provided in the tank. A fan communicates with the upper plenum chamber and draws air from the inlet duct via the plenum chambers and the parallel paths through the tubes. The air is washed by the spray formed by the nozzles which are fed with liquid drawn from the tank through the filter apparatus.

Abstract: Fully chlorinated and/or fluorinated hydrocarbons are used as gas scrubbing liquids for preventing noxious gas emissions to the atmosphere.

Abstract: An exhaust gas cleaning system adapted to clean smoke or other waste gases through a liquid bath process. This system comprises a generally cubicle enclosure divided internally into three separate compartments. The first compartment includes means for inputting both a cleaning solution, preferably water, and a dirty exhaust gas for cleaning. Liquid level is maintained relatively constant by a float-actuated door system. A barrier disposed within the compartment prevents liquid turbulance. An adjacent intermediate compartment is in fluid flow communication with the inlet compartment via a submerged liquid passageway through which gases may be drawn by suction. Perforated plate means disposed within the intermediate compartment removes particulate matter from the liquid cleaning solution, and the resulting sediment is deposited in an adjacent auger equipped sediment pit for removal from the system.

Abstract: A method and apparatus for removing sulfur dioxide from an exhaust gas with use of an absorbent containing a salt of an organic acid within a scrubber provided with perforated plates, characterized in that the vapor of organic acid discharged from the top of the perforated plates is absorbed into the absorbent with a pH value of 6 to 8 within wetted walls provided on the upper side of the perforated plates.

Abstract: A steam-pressured eliminator for use on top of a tall, industrial-type, brick or metal smoke stack to reduce their pollution of the atmosphere. This eliminator is operated by pressurized steam directed so as to intercept the flow of smoke tending to leave the stack and releases to the atmosphere only cleansed smoke and steam. The steam condensate with the smoke particles are drained off from the stack attached vessel. The smoke eliminator is such that the eliminator can be assembled to the stack as a unit, as by the use of a helicopter, and in some forms the steam generator is made a part of the unit so as to be inserted in the stack suspended from the top thereof and be heated by the hot gases of the stack itself. Preferably when the stacks are of brick the attachment is made to top and exterior surfaces thereof. When the stacks are of metal the unit can be wedged into the top opening of the stack and the unit vessel being tapered, can be fitted to various diameter sized stacks.

Abstract: An absorber tower maintenance isolation system for isolating an absorber tower while maintaining a steam generation plant in operation. An inlet blank-off plate and outlet blank-off plate cooperate with louver dampers in the inlet and outlet ducts to permit shut down or start up of an absorber tower. Closure devices and locking devices act to keep the blank-off plates in position. Equalization devices and duct vent holes allow release to the atmosphere. Further, access is provided to the absorber tower inlet and outlet ducts.

Abstract: An absorber tower maintenance isolation system for isolating an absorber tower while maintaining a steam generation plant in operation. An inlet blank-off plate and outlet blank-off plate cooperate with louver dampers in the inlet and outlet ducts to permit shut down or start up of an absorber tower. Closure devices and locking devices act to keep the blank-off plates in position. Equalization devices and duct vent holes allow release to the atmosphere. Further, access is provided to the absorber tower inlet and outlet ducts.

Abstract: Disclosed is an air cleaning apparatus having a rectangular enclosure with air inlet and outlet passages and internal lower and upper baffles which sequentially direct inlet air through lower and upper water curtains which are provided by a recirculating water system. The apparatus also has a separate scrubbing water system to wash the internal surfaces of the apparatus. In operation, the scrubbing system is periodically activated and the reservoir of the recirculating water system is periodically drained and refilled with fresh water. Also disclosed is the method of using the apparatus.

Abstract: A device for separating impurities from gases by means of a washing liquid. The device includes three (3) interconnected chambers: a suction chamber, a mixing chamber and a separating chamber, wherein the outer wall of the mixing chamber is the inner wall of the suction chamber and the inner wall of the mixing chamber is the outer wall of the separating chamber. In the upper portion of the mixing chamber there is an inlet which connects the suction and mixing chambers for conveying contaminated gases rising in the suction chamber downwardly into the mixing chamber. In the upper portion of the mixing chamber below the outlet there is mounted a plurality of spray nozzles for downwardly spraying washing liquids which removes impurities in the contaminated gases as they flow downwardly through the mixing chamber. At the bottom of and directly open to the mixing and separating chambers is a liquid collection chamber for collecting used washing liquids and impurities from the gases.

Abstract: An energy transfer and air purifying device is provided, comprising a liquid bath, means for containing the liquid bath, the means including at least one opening therein, exhaust means in fluid communication with the liquid bath, the exhaust means partially extending into the liquid bath and defining a fluid space between the containing means and the exhaust means, the exhaust means also including an outlet means, guide means associated with the exhaust means for guiding contaminated gas to the fluid space, the guide means including an upper limiting member, and a pressure-differential means associated with the liquid bath for changing the fluid level of the bath for forcing a contaminated gas through the liquid bath and the exhaust means, wherein the liquid bath interacts with the contaminated gas in a heat exchanging and scrubbing relation.

Abstract: A gas scrubbing plant having a gas scrubbing stage, a washing liquid separating stage and a stage for washing out suspended matter therebetween. This latter stage includes a plurality of gas baffles which accelerates the gas and then decelerates it while liquid is introduced into the gas baffles as the gas passes therethrough. Each baffle has an inner conical member surrounded by an outer member to define therebetween an annular passage with diverges at an angle of between 10.degree. and 90.degree. from the inlet adjacent the apex of the conical member to the outlet from the baffle, the cross-sectional area of the annular passage decreasing in the direction of gas flow and then increasing towards the outlet.

Abstract: A venturi-type rod scrubber for effecting the cleaning of the flue gas produced as a by-product of the combustion process that occurs during the course of the operation of fossil fuel firing steam generators, before the flue gas flows up the exhaust stack and is released to the atmosphere. The subject scrubber includes inlet means through which the flue gas enters the scrubber. A first spray system is suitably mounted in juxtaposed relation to the inlet means so as to be operative to introduce liquid into the stream of flue gas entering the scrubber through the inlet means. In alignment with but in spaced relation to the inlet means, the scrubber is provided with a throat region, i.e., a region of restricted cross-section. A plurality of spaced rows of parallel rods are suitably mounted within the throat region so as to extend substantially perpendicular to the path of flow of the flue gas flowing therethrough.

Abstract: Method and apparatus are disclosed for cooling a process gas stream having a temperature in the range from about 400.degree. F. and 3000.degree. F. and absorbing gaseous contaminants therefrom wherein contact is effected between said process gas stream and respective quench and absorbent liquids in order to provide said cooling and absorbing functions. The flow rates of the process gas stream, quench liquid, and/or absorbent liquid are subject to substantial variations due to operating conditions related to the process gas source or to the provision for contaminant recovery, requiring absorbent liquid of a desired concentration. In practice, the process gas stream may be that discharged from a waste product incinerator containing not only products of combustion but also the aforesaid gaseous contaminants.

Abstract: A cleaner for the products of combustion in a smoke stack in the form of a vertically elongated chamber having a multiplicity of inclined baffles extending from opposite sides of the chamber to beyond the center line thereof and water spray devices located intermediate of each pair of vertically spaced baffles. In the preferred form, the baffles are inclined inwardly and upwardly, so that water from the nozzles flows to the outer edges of each baffle where it is connected to a drain.

Abstract: An inclined screen tray tower having one or more inclined screen trays, in which a liquid is passed downwardly onto said screen tray to form a film of said liquid on each of said screens and gas is passed through said liquid films so as to be absorbed by said liquid, characterized in that a plurality of cylinders are arranged side by side on each of said tray screens in such a manner that the longitudinal axis of each of said cylinders extends in the direction of inclination of each of said tray screens, each of said cylinders being made of a netting with metallic or synthetic resinous wires each arranged to make an angle of about 45.degree. with the longitudinal axis of said cylinders.

Abstract: The heat and flu gases which are ordinarily expelled through an emission stack of a conventional furnace are instead channeled through a heat exchanger to produce steam for power generation and are subsequently directed through a gas scrubber apparatus to remove all contaminates from the flu gas prior to expelling the gases into the atmosphere.

Abstract: A gas scrubber apparatus for cleaning impurities from a gas such as air, having a pair of tanks partially filled with water, and each having a tower extending vertically therefrom. Gas is fed to one or the other tower, past a plurality of sprinklers located in the towers, and against the water in the bottom of the tank, and then out an outlet. A pump pumps the water through a filter from each tank to the sprinklers in the tower, and the water may have added chemicals for improving the scrubbing action.

Abstract: A quenching device for a hot, dirty gas stream, the quenching device being disposed between a flow-through duct carrying a hot, dirty gas stream and a housing to treat the gas, the quenching device including a pair of cooling water sources in parallel transversing the gas stream. The quenching device further includes means to prevent dirt build-up at the entrance of the housing due to entrainment of the dirt in the cooling water flowing through the gas stream.

Abstract: A device for removing smoke gases, dust and the like from a workpiece to be flamed includes a suction hood mounted on a movable flaming machine located before the flame burner as seen in the flame direction and is characterized by the hood being connected by a first duct to a trough to which a second duct communicates with a filter apparatus being at the free end of the second duct.

Abstract: An anti-pollution system for industrial smoke stacks has a source of live steam feeding steam to a nozzle centered in the upper part of the stacks and several concentrically steam cooling towers of progressively smaller diameter. Each chamber opens into the other and has a drain for conveying water laden with unburned particles and soot to filters at the bottom of the stacks.

Abstract: The apparatus and method described herein comprises a sequence and arrangement of equipment and the method of operation thereof for the removal of water soluble pollutants and particulate matter from flue gases, such as those emanating from incinerators, furnaces, electric power generating stacks, etc.

Abstract: A furnace chamber of substantially circular cross section having a ceiling and a side wall, a burner positioned adjacent said ceiling and substantially evenly spaced from said side wall, a plurality of ultrasonic atomizer assemblies positioned around said burner in a concentric pattern adjacent said ceiling, each of said ultrasonic atomizer assemblies including: (a) means for converting a feed stream of the waste sulfuric acid into a coarse spray, and (b) means for further atomizing the coarse spray by passing it through a field of ultrasonic sound, and a gas flow constricting means transversing said chamber and spaced from said ceiling in a distance of about 1 to 4 times the length of the diameter of said chamber.

Abstract: A clean, cool stream of low BTU gas is heated and saturated with water vapor by means of a hot liquid stream containing water. Contamination of the gas stream by droplets, particulate matter and salt content of the liquid stream is obviated by maintaining separation between the gas and liquid phases by means of a microporous barrier. The barrier is made of a material selected from the group consisting of hydrophobic polymer material and hydrophilic polymer material having a gel structure.

Abstract: A cooling device for use in the quenching of combustion gases containing hydrogen chloride. The device is an elongated steel vessel with angularly spaced openings to receive nozzles for the injection of a quenching liquid. The vessel contains a hard rubber layer extending over its inner surface and an acid-resistant ceramic lining within the hard rubber layer.

Abstract: Apparatus for the production of an inert gas wherein liquid of gaseous hydrocarbons are burnt within a combustion chamber with air, possibly with the admixture of a gaseous atomizing agent, especially steam, inert gas or air, whereby a first shock-like cooling is performed, which is followed by a second cooling step and a scrubbing with water or an aqueous solution of a temperature in the vicinity of the freezing point, and the gas treatment is finished with an adsorption drying.

Abstract: An improved venturi scrubber for removing particulate matter from a gas stream. The scrubber includes ports located either at the throat at the venturi or in the divergent section for injecting gas or air into the stream being processed through the scrubber. The ports may be either a series of openings or a continuous annular opening and are connected by ducting either to the convergent section of the scrubber to receive a portion of the incoming gas stream or to a separate source of gas or air.

Abstract: There is provided an efficient, economical apparatus for cooling hot gases which includes three generally cylindrical, tubular members arranged in an upstanding U-shaped configuration. The hot gases are introduced downwardly into the first leg or member of the configuration where a plurality of water nozzles provide a water boundary circumscribing the interior of the first leg to prevent thermal fatigue thereof. A water nozzle in the first member acting as a jet pump entrains the hot gases and directs them into the transverse leg or member of the configuration for rapid,turbulent cooling therein. Packed beds are provided in the second upstanding leg or member of the configuration to permit scrubbing of the cooled gases prior to exit. Coolng the gases in such a manner permits the entire configuration to be constructed of steel plate without any special insulation.

Abstract: Waste gas from a coal-fired power plant is scrubbed with a lime-water mixture to form a sludge whose water content is reduced and which is mixed with a binder such as water glass. This mixture is then pelletized to produce hard water-stable material suitable for use as an aggregate or filler. The waste gas may be stripped of its fly ash and this ash added to the sludge to thicken it.

Abstract: An incinerator gas is first passed through an evaporative cooler operating above the dew point of the gas and then the gas is passed through an electrostatic precipitator or cyclone which strips dry particles from the gas. Thereafter the gas passes through a scrubber operating with a scrubbing liquid so as to produce a solution that is fed to a clarifier. The decantate from the clarifier is recirculated as the scrubbing liquid whereas the sludge is neutralized and fed back into the evaporative cooler. Flash evaporation of this neutralized sludge in the cooler causes salt to crystalize so that these crystals can be stripped out at the downstream dry filter. A valve body at the outlet side of the scrubber is positioned in accordance with gas pressure inside the incinerator so as to maintain back pressure within the system substantially uniform.

Abstract: A liquid spray-type stack gas clarifier is adapted to be mounted within existing stacks and supported therein from the top of the stack structure. Means are provided for maintaining gas flow velocity within the stack to compensate for pressure changes resulting from the cooling effect of the liquid spray curtain discharged into the stack to entrain and absorb particulate and gaseous pollutants from the stack gas. The spray liquid and absorbed pollutants are collected within and drained from the stack, and means may be provided for shielding existing stack structure from adverse effects of the scrubbing liquid.

Abstract: A pollution control device having a tank provided with an inlet and an outlet arranged for passing a gaseous medium to be cleaned into the tank and through a bath of washing solution held in the tank. A blower unit, mounted outside of the tank, forces the gaseous medium through the bath. A line connecting the blower unit to the bath passes a quantity of washing solution through the blower unit for cooling the unit. Baffles are arranged partially immersed in the bath in the tank for creating a large surface across the gaseous flow and facilitating separation of particulate matter from the medium being cleaned. The baffles are advantageously in the form of a plurality of cylinders each constructed from a mesh material and tiered in one or more substantially vertical channels arranged within the tank.

Abstract: A direct contact water heating system and process are disclosed which provide for the direct contact of hot flue gases with water-to-be-heated without the hot flue gases being washed or quenched prior to their contact with the water in such a manner that maximum thermodynamic efficiency is achieved while delivering water heated to the equilibrium temperature corresponding to the vessel pressure and free of dissolved gases, and requiring, under most conditions, no make-up water. A variation will produce water at a higher temperature. The system discharges scrubbed environmentally-acceptable flue gas to the atmosphere with essentially zero chemical, particulate or thermal pollution.

Abstract: A nonferrous metal is heated so as to produce a hot gas that is passed through an evaporative-cooler and, without saturation of the gas, is introduced into a dry-process filter where particulate material is removed. Thereafter this gas is fed to a scrubbing tower whose scrubbing liquid removes gaseous, liquid, and any remaining particulate material from the gas and exits from the tower as a scrubbing liquor. This liquor is clarified and the decantate is recirculated for use as the scrubbing liquid while the sludge is neutralized and sent back to the evaporative cooler. The neutralized sludge is flash evaporated in the evaporative cooler so as to form crystals that are removed from the system either in this cooler or at the dry filter downstream therefrom. A particle filter may be provided between the neutralizer and the evaporative cooler to remove any hard particulate material from the neutralized sludge.

Abstract: This invention relates to an anti-pollution means for attachment to a smoke stack, and consists of forming a conduit over the top of the stack to entrain the discharge therefrom when the stack is in operation, by forced draft, drawing the emission through a conduit adjacent the stack and into a water bath to thoroughly extinguish any burning carbons and to filter any ash or other residue before discharge of the emission, and discharging the washed emission downwardly and outwardly at ground level.It is also an object of this invention to teach a method of anti-pollution by forming an air stream above a smoke stack and drawing the smoke stack emission into the air stream and away from the top of the stack when is in operation and subjecting the emission to a water spray before venting the remaining gas at ground level.

Abstract: An apparatus for the removal of sulfur dioxide and particulate matter from flue gases wherein a pump extracts hot flue gases from a furnace and discharges such gases, and the particulates entrained therein, into one end of an extractor comprising a horizontal series of water-containing extraction chambers. The gas under pressure is forced from one chamber to the next through communicating openings in the lower side walls of the chambers, the gas pressure being sufficient to displace some of the water and maintain at least the final chamber in substantially filled condition. The water in the series of extraction chambers combines with the sulfur dioxide in the circuitously-flowing flue gases to produce an acid solution, thereby extracting the sulfur dioxide and simultaneously washing particulates from the gases. A suitable heat exchanger is disposed in at least one of the chambers for transferring heat from the water to a fluid circulated through the exchanger.

Abstract: A pollution control unit comprises a tank having an outlet and an inlet for gases treated therein. A pair of spray compartments are spacedly situated within the tank, and a de-entrainment compartment is situated between the spray compartments. A series of spaced baffles define the spray and de-entrainment compartments and in addition define the flow path of the gases serially through the compartments. Spray devices are provided for directing water sprays into the gases but only within the spray compartments. Additional spray and de-entrainment compartments are contemplated.

Abstract: Apparatus for attachment to a flue includes a series of chambers for receiving hot products of combustion in the form of gases, cooling the gases and removing noxious impurities through condensation. A blower unit is connected to the series of chambers to add fresh air to the gas flow, hold hot gases down, create a draft from the conventional flue through the system and exhaust a flow of clean air from the system.

Abstract: A chimney for purifying smoke or gases has a tubular lining within the chimney on which a cleaning liquid downwardly flows. A central helicoidal surface composed of a plurality of piled helical elements, imparts a helical movement to smoke or gases rising through the chimney, whereby impurities impinge on the film of liquid and are washed down. The lining can consist of a plurality of single or double walled tubular elements piled end-to-end and possibly arranged to supply the liquid in cascade.

Abstract: A plurality of jointly assembled standardized conduction tube segments; one end of which is in communication with the emissions conduit collector means which collector being attached to the plant emissions exhaust orifice or flue stack means and the opposite end of said conduction tube assembly serving as a clean air exhaust orifice. Each conduction tube segment wall externally supports a pressure relief means and said tube internally supports, near its intake end, an axial flow vacuum fan immediately aft of which is supported a helical spiral of high pressure liquid multi-spray nozzles which said liquid is in contact with vacuumed pollutant emissions. The said pollutants (particulates and liquid soluble gasses) being extracted thereby said spray liquid encapsulation and subsequently deposited into conveyor channel thereunder sprays and which channel is in communication with bottom of conduction tube assembly.