WO2019178705A1

WO2019178705A1 - System for breaking down waste gas

Info

Publication number: WO2019178705A1
Application number: PCT/CL2018/000010
Authority: WO
Inventors: Oscar Mariano MONTIEL FLORES
Original assignee: Montiel Flores Oscar Mariano
Priority date: 2018-03-23
Filing date: 2018-03-29
Publication date: 2019-09-26

Abstract

The invention relates to a system for scrubbing waste gas with rotary circular filters and three bodies for washing gases and pollutants. The first scrubber is a vertical cylinder with a vertical axis, which has rotary filters with an external motor at the top, with the filters placed horizontally and the sprinklers on both sides, supplied by two water pipes. The water overflow exits by the bottom towards the waste tank. The second scrubber of gases and pollutants, which is rectangular, collects the flows with a centrifugal fan with sprinklers on the inside, and draws them to the rotary circular filters driven by an external motor, which are in vertical form. These filters are screens and have only their lower half submerged in water, said level being maintained by the water level overflow, which flows into the waste tank. The gases and pollutants that manage to pass through arrive in the third gas scrubber via an upper tube. This scrubber is in the form of a horizontal tube with a motor that drives a shaft, with only the lower half of the vertical filters moistened with water, the water level being regulated by the discharge of water into the waste tank and supplied by a water pump thereof. Before the final outlet, it has a fan that allows the clean gases to be discharged into the atmosphere.

Description

Waste Gas Abatement System

Descriptive memory

The issues associated with water, environment and sustainability have revolutionized the industrial environment, becoming a cross-cutting challenge for all industries and productive sectors around the world, the economic growth itself that brings about the increase in emissions and the country It must grow with clean energy to meet international standards. Various treatment systems already in force in the market achieve the depletion of particulate material, allowing the environment of the industries to be sustainable.

Scrubber systems are systems that capture and kill pollutants emitted into the air, managing to trap particles or gases produced by industrial chimneys. Scrubbers are equipment that uses water or water-based liquids to remove and deplete the pollutant or gases emitted by chimneys. The

Scrubbers are also systems that inject a reagent or slurry (thick suspension of solids in a liquid) into already collapsed chimneys of pollution to clean acid gases. They are important devices to control gaseous emissions, especially that of acid gases. They can also be used to collect pollutants at high temperatures of a hot gas by condensing tube gas.

Inside the scrubbers are the spray scrubber with deflector: it is an air decontamination technology very similar to a spray tower but with the addition of many deflectors that direct the flow of contaminated air to the next sprayer thus achieving that the contaminant remains separated in the sprayed liquid; the cyclone scrubber with sprayer which is similar to a cyclone separator but with the addition of a sprayer; the venturi ejector scrubber is an air scrubber that uses a flow and a spray that sprays water which cleans polluted air especially from chimneys and industrial furnaces; the scrubber with mechanical help that are air scrubbers that added to the sprayers use engines with rotors or vanes that together with the sprinklers produce small drops of water that collect the contaminants, and the wet scrubber that are scrubbers that remove contaminants from chimneys or other flow of contaminated gas that passes through a pool of water that separates the contaminants.

The present invention presents a gas abatement system for industrial chimneys that is made up of a team of three consecutive washing bodies that form the complete equipment, the first body is a scrubber, a gas cooling tower with water sprayers and a vertical axis with static filters rotating horizontally on its body, the second body is a rectangular scrubber with water and a horizontal axis with static filters rotating vertically and on these are some irrigating vanes and under the water level there is an electric heater, the third body It is a horizontal scrubber with water and a horizontal axis with static filters rotating vertically.

The system consists of continuously pouring water to the three bodies, the sprayers of the first body and the filters are humidified by lowering the water to the waste tank. When the gases rise through the cooling tower, they are sucked by the centrifugal fan with water sprayers that pressure them to the second body with water only halfway, regulated by a water overflow, where the filters are moistened with water only until half as these are rotated and the filters are additionally moistened by the irrigation vanes when they rotate, the water being poured by a water pump. With the humidity of the filters the gases and pollutants adhere to these being deposited in the water. When passing through these filters, the gases and pollutants pass to the third gas scrubber body that is horizontally and the filters rotate vertically in this pipeline which also has water only halfway, regulated by the water level, adhering the gases and pollutants that they are again deposited in the water when they are released, these moisturized filters come out clean when turned to repeat the process over and over again. The contaminants previously trapped in the water go down to the waste tank product of the spray and in bodies two and three they descend by gravity to the overflow itself by the ducts of these to the waste pond, leaving the contaminants as fine flour, recirculating the water through from a water pump to the systems again.

State of the Art

In the state of the art we find the Chilean patent 42130 that indicates a wet filter device for all types of particles in industrial chimneys, which comprises a turbo extractor with built-in filter meshes, and filtration chambers associated with impeller media and heaters of the liquid and elements gas coolers Said patent presents an integrated decontaminator device, for all types of suspended particles, generated by industrial chimneys, which is made up of a turbo extractor consisting of a motor and vanes covered with a double band of meshes, a decontaminator tank, a chiller chamber, a pump motor and a basic solution tank.

Also in the Chilean patent application 1287-1993; In the public domain, an integrated exhaust gas purifier device for internal combustion engines composed of a rotary grid filter is protected. This purifier is composed of a lower area with an inclined tank; in the center of the upper zone there is a stabilizing chimney from which the tube of escape. The interior of the cylinder is divided into two equal side sections separated by a central spacer tube of short length that is mounted on a longitudinal axis, said separation coinciding on the longitudinal axis, consecutively, a first flat propeller of diameter slightly smaller than the cylinder, a first separator, a second flat propeller similar to the first but with its offset blades with respect to it, a second separator and then a plurality of grids interspersed with separators; the ends of the longitudinal axis have recesses of their diameter to fit bearings that fit in the end caps of the cylinder which fit in a sealant manner to the cylinder and extending one end of the shaft for engagement with a means of rotation; a gas inlet duct in both cylinder covers and a basic solution inside said cylinder. In addition, a method for purifying internal combustion gases using said device is mentioned.

Also in the US 2003/145733 patent an apparatus for purifying the air is presented, which consists of a container with water inside which a perforated end is introduced inside the perforated section of the smoke circulation duct, which is pushed by a turbine, and sucked by a smoke collector with transverse and parallel axes inside, with blades that move with the help of a transmission to a pinion and a chain connected to the pinion axis and to an engine.

Finally, JPS patent 57204218 indicates that a harmful gas containing soot, smelly substances or CO is aspirated into an exhaust cylinder of a chimney by a fan and a chemical liquid that is sprayed from a nozzle to collect harmful substances. In addition, said gas is sucked into a wastewater storage tank by the fan and a heater heats a porous annular mesh while the reactive chemical liquid is sprayed. From the mouthpieces. The harmful substances adhered on the surfaces of the meshes are separated by pressurized air sent from the nozzles or by the water recirculated in a storage tank sent under pressure and collected in the tank to be removed by a drain. The gas after purification is released into the atmosphere from a discharge port by the suction of it from a fan.

All these documents, although they have scrubbers similar to that of the present invention, none have the principle of contact of the chimney gases with filters that retain the pollutants and that is in a centrifugal fan and where the filters are humid by means of a system aqueous. By using only water, the system is more sustainable

Brief description of the figures

Description of the figures of the Washing System of Waste Gases, of three washing bodies, for the gases and pollutants emitted by the industrial chimneys.

FIG. one

Waste Gas Washing System, shows the system in general with its three washing bodies connected for functionality, starting from the right to the left.

FIG. 2

It presents the Waste Gas Washing System with all its components, horizontal filter sprayers, centrifugal fan and vertical filters of bodies two and three. FIG. 3

The interior of the two washer is seen with its components for a better understanding.

FIG. 4

It presents the interior of the three washer with its components for a better understanding.

FIG. 5

It shows the complete System with its components and the water overflow connections to the waste tank and the way the water recirculates to the system itself.

FIG. 6

It presents a second alternative Washer, to replace it in case of major emissions of particulate matter, with a rotating disk and base of this circular mean to remove the particles that are deposited by the overflow.

FIG. 7

For a better understanding you can see the disc of the scrubber two alternative of how it is installed and shows the inclination of the interior and at the end of this the disc is rotating to remove the particles through the overflow.

Description of the invention

The present Waste Gas Abatement System is composed of the scrubber 1 with a reducing motor and gas cooling tower, a centrifugal fan for the scrubber 2 with a reducing motor and the scrubber 3 with a reducing motor; linked sequentially, a pump and a common sewage pond. In a more detailed way this system of waste gas abatement of three washing bodies is made up of three consecutive washers that form the system, the first washing body 1 is a vertical cooling tower with rotary filters and a central axis and a motor in its body with water sprayers, the second washing body 2; it receives the flow taken by the centrifugal fan from the first body, with water only halfway with an electric heater, regulated by the overflow of water, it is a vertical rectangle with a horizontal axis moved by a reducing motor, with vertical filters that in The upper part has a water irrigating vane for these and is connected with the third washing body that is horizontally with a central axis connected to a reducing motor, with filters also vertically circulating in this body that has water only up to the half of it, regulated by the water level outlet.

The depletion of gases and pollutants in the system is that the three bodies of the system work with water and circular filters, the first gas scrubber receiving the industrial flow at the bottom and these are sprayed with water from two external side pipes , the sprayed water precipitates gases and particles and these come down with the water by emptying the decanter, the flow of gases and pollutants rises and is taken by the centrifugal fan with water sprayers takes them to the two rectangular decanter, which has water only halfway pre-provided by the water pump, regulated by the overflow and a submerged electric heater. The vertical filters with irrigating vane in its upper part to be irrigated when rotating these when rotating and are on an axis with a reducing motor and from this body the gases and contaminants pass to the scrubber three driven by the centrifugal fan that is horizontally with a motor reducer connected to its central axis with vertical circular filters, this body with water only halfway regulated by the water level outlet. The gases and pollutants that leave the flow generated by the dusting combustion process collide with the horizontal rotating filters of the scrubber one, gas cooling tower and pollutants and with the water generated by the sprayers that make these decant and the centrifugal fan takes the gases and pollutants driving them to the scrubber two, these collide with the vertical filters with irrigating paddle filters that are submerged only halfway with water regulated by the overflow of water level and an electric heater submerged in it, the trapped gases and contaminants arrive with pressure to the scrubber two where these collide continuously over and over again with the filters where they are trapped by the water where they are left when the filters are rotated, they are released when they rotate and the filters come out clean again to repeat the operation again, the gases and contaminants They go down the pipeline to the waste pond. Heavy contaminants take the form of very fine flour and they go to the bottom of the waste pond. The gas scrubber two delivers the flows to the gas scrubber three which passes the gases and pollutants through circular, rotary filters that are vertically submerged in water only halfway and this is regulated by the water level outlet . The particularity in the gas scrubber is that the filters of the three bodies are circular and rotating installed vertically and horizontally.

The efficiency of the gas scrubber system when passing through the three sequential bodies guarantees the depletion of particulate material, odors of productive processes, purifying and reducing toxic gases, depletion of ferrous particles, charcoal, powders and soot, guaranteeing an efficiency over 95 %, the system is built both its structure and its rotating filters in 304 Stainless Steel and are long lasting and work with water or any water-based solution, the gas abatlmeinto and pollution of any type of combustion. It is important to consider, in addition to the use of the system gas scrubber with one or two scrubber bodies, depending on the situation achieving the same dejection. The gas scrubber system when operating with water only emits steam at the exit of the chimney and the filters do not require changing or maintenance since they are self-washable when turning and being bathed with water, its manufacture is based on the flow and the diameter of each chimney, its mechanical function is long lasting and when operated with water it is manufactured in 304 Stainless Steel.

Detailed description of the invention

The present invention presents the three bodies that make up the gas scrubber system, the spray tank (1) has a drain to the decanter (2) and the chimney flow inlet (3) and to the sides of the spray tank (1) are water pipes to the sprayers (4) and in the upper part there is an engine for the pond filters (5) with an axis of the tank filters (6) inside both sides of the water sprayers (7) that moisten the rotary pond filters (8) flanges (9) that connect the spray tank (1) with the centrifugal fan (10) with a motor (11) and two sprayers (12) the turbine is joined by a flange (9) flows to the second filter body (13) the vertical gas scrubber with a vertical filter reducing motor (15) the vertical gas scrubber (14) carries an electric heater (16) submerged in water and under this the water outlet plug (17) at the side a drain (18) with a water level overflow (19 ) the vertical filters (20) and on these the irrigating vanes (21) the vertical filter shaft (22) with vertical filter separator (23) in the upper flange (9) passes flow to the third body (24) third body (25) third body filter shafts (26) third body water level outlet (27) of the third body vertical filters (28) A filler plug (29) on the third body filter shaft a propeller (30) and the flow outlet end (31) third body vertical filters (32) driven by filters (26) motor driven filters (33) rotary pond filters (8), vertical filter (20) and vertical filters (32) they have inner support (34) and circular support (36) with water level (35) up to the middle of the third body (28) submerged in system water (36) up to level (35) pond drain cock (37) filters and ponds (38) waste pond (39) water pump (40) and float (41).

When the waste gas abatement system is working, the flow of the chimney of the industry, enters the lower right side to the scrubber one - gas cooling tower, here the flows rise being these pulverized with water and pass through several rotating filters that are horizontally achieving an additional capture of gases and pollutants and the capture achieved by the water sprayed down the connections to the waste ponds.

The gases and pollutants that managed to pass up to the connection of the two washer; which are taken / sucked by a centrifugal fan which maintains the initial flow emitted from the chimney at least or more, and these pass through several rotating filters that are vertically humidified only halfway in the system since the water cover only this part of the washing machine two, advancing the gases and pollutants from the right to the left, when they collide with the filters they are taken by the humidity and when they are turned they are released into the water to leave clean again and again to take more gases and pollutants which are trapped by the functionality of the system in the water and go down to the waste pond. The gases and pollutants pass through several circular filters and the capture achieved low by the connections of the two washer towards the waste pond.

The gases and pollutants that pass to the scrubber three are trapped by this which is installed horizontally and the rotary filters rotate vertically, also only with water the system only up to half of the equipment, so that when you turn the filters achieve leave in the water the gases and contaminants trapped by the moisture that the filters take when turning on the axis driven by an engine.

The pollution killed and captured by water in the three gas scrubber bodies are dissolved in the water that goes down to the waste pond.

The waste gas abatement system with its three bodies and its rotating filters that work with water, manages to reduce the gases and particulate matter first, recycling the fumes and particulate matter of the flows themselves, and also captures the odors of the combustion process of all types of fuels and captures all polluting bodies that make up the flows and polluting gases, in addition to lowering the temperature of the flows since they pass through the three bodies that kill them work with water.

The Waste Gas Washing System formed by three bodies with horizontally and vertically rotating filters, with their sprayers and rotating filters throughout the system, manages to knock down all kinds of particulate material emitted by industrial chimneys, such as charcoal powders, soot, particles ferrous and any emission produced with body and volume, of any type of combustion, which are shot down by the system composed of three consecutive bodies that work with water, these being trapped in it and down the pipes to the waste pond.

Operating the Waste Gas Washing System with water reduces the temperature of the flows with polluting gases emitted by the chimneys. Additionally, due to the functionality of the system, water achieves abatement of the odors and vapors of the production systems.

The Waste Gas Washing System, composed of three washing bodies of gases and pollutants, can be used in smaller, medium and larger flows with different types of combustion at the industrial, mining and production companies of various products, also managing to neutralize emissions of Own odors produced in industrial production processes. The abatement of gases, pollutants, and odors is total with the system.

List of components Waste Gas Washing System - Spray pond 29.- Filling cap

- Emptying the decanter 30.- Spray propeller

- Chimney flow inlet 31.- Final flow outlet - Water pipe sprayers 32.- Third vertical filters - Body tank filter engine

- Pond filter shaft 33.- Third body motor - Water sprayers filters

- Rotary filters pond 34. -Internal filter holder- Flange to vertical filters

.- Centrifugal fan 35.- Water level second .- Motor centrifugal fan body

.- Centrifugal fan sprayer 36.- System water

.- Flow to second body 37.- Pond drain .- Vertical gas scrubber 38.- Filter hoses and .- Reduction motor vertical filters tanks

.- Electric heater 39.- Waste tank .- Water outlet plug 40.- Water pump

.- Drain 41.- Float

.- Rebalse water level 42.- Electric heater .- Vertical filter

.- Irrigator trowel

.- Vertical filter shaft

.- Vertical filter separator

.- Flow to third body

.- Despiche third body

.- Axis third body filters

.- Third level water level outlet

.- Third body vertical filters

Claims

CLAIM OF CLAIMS

1.- A waste gas scrubber system, formed by three scrubbers that work with water to reduce gases, pollutants and odors emitted by all types of industrial chimneys that produce pollution in their production processes with any type of combustion CHARACTERIZED constitute a system with three gas scrubbers that form the system, the one washer, is a vertical pond with water sprayers on both ends and with horizontal rotary filters, moved by an axis with a motor installed on the upper outer part of it, the entrance of flows is on the lower right side, and the flow outlet is on the upper left side, the second rectangular washer complemented by a centrifugal fan with two dispensers and that takes the flows to the center itself to reach the vertical rotary mesh filters , submerged in water only halfway with a water overflow and these have irrigating vanes to moisten it When turning by means of a central axis with an external motor and it has an electric heater in the lower part so that the fatty particles do not stick, the flows have the exit from the upper left side passing to the third washer in the form of a tube with vertical filters that rotate with a central axis moved by an external motor on the left side, the rotating filters are moistened submerged only halfway with water with a water overflow and gas outlet upwards by means of a tube that is at the end from washing machine to the left side.

2. A waste gas scrubber system according to claim 1 CHARACTERIZED in that the system has the following sequence:

* The gases and pollutants enter the washer one which has two pipes with water sprayers and circular grid filters that are rotating horizontally, achieving greater despondency since they adhere to the sprayed water and are trapped by the grilles of the filters and down the drain to the waste tank, the gases and pollutants that manage to pass up and are taken by the centrifugal fan with water sprayers and throws them into the scrubber two.

* In the two rectangular washer, the contaminants pass through the filters that rotate in a rotary axis that moves the external motor, the circular filters are placed vertically, and the washer has water only up to the bottom half of the filters, which, when turning, moisten and capture the gases and contaminants that remain in the water and in this way again the filters are moistened to capture the contaminants again, the water level, allows the water to reach only half of the pond and by this the water goes down to the waste tank, and this is supplied with the water with the water pump that makes the water in the waste tank recirculate. The gases that manage to leave pass to the scrubber three.

* The three tube-shaped scrubber receives the gases and pollutants that managed to pass and these are shot down by the circular grid filters that rotate on a horizontal axis moved by an external motor, in the water that it contains only halfway, allowing moistening the filters in their lower part when turning these leave the particles in the water, the water level is maintained with a water level outlet that goes down to the waste pond and is supplied with water by means of a water pump that makes Recirculate the water from the waste pond. The gases are taken by an internal fan that is before the exit of the gases in the third waste gas scrubber.

3. A waste gas scrubber system according to claim No.

1 CHARACTERIZED the system is composed of three gas scrubbers

4. A waste gas scrubber system, according to claim No.

1 CHARACTERIZED because the gas scrubber one carries a rotating shaft with horizontal filters.

5. A waste gas scrubber system according to claim

N ° 1 CHARACTERIZED because the filters in the three bodies of the system are circular shaped grilles.

6. A waste gas scrubber system, according to claim 1 CHARACTERIZED in that the filters of the scrubber system two and the scrubber three are submerged only in the lower half in the water.

7. A waste gas scrubber system, according to claim 1 CHARACTERIZED because the system in the three bodies uses only water.

8. A waste gas scrubber system, according to claim 1 CHARACTERIZED because its construction is proportional to the diameter of each chimney.

9. A waste gas scrubber system, according to claim 1 CHARACTERIZED because its capacity is proportional to the flow of each chimney.

10. A waste gas scrubber system, according to claim 1 CHARACTERIZED because the filters of the scrubber system in its three bodies are self-washable.

11. A waste gas scrubber system, according to claim 1 CHARACTERIZED, the centrifugal fan carries sprayers.

12. A waste gas scrubber system according to claim 1 CHARACTERIZED because the centrifugal fan maintains the initial flow of the chimney

13. A waste gas scrubber system according to claim 1 CHARACTERIZED in that the scrubber two has a rotating shaft with vertical filters.

14. A waste gas scrubber system according to claim 1 CHARACTERIZED in that the scrubber two has irrigating vanes in the body of the rotary filters.

15. A waste gas scrubber system according to claim 1 CHARACTERIZED in that the scrubber two has an electric heater for fatty particles.

16. A waste gas scrubber system, according to claim 1 CHARACTERIZED because the scrubber three is a horizontal cylinder.

17. A waste gas scrubber system, according to claim 1 CHARACTERIZED in that the scrubber three has a rotary axis with vertical filters.

18. A waste gas scrubber system according to claim 1 CHARACTERIZED because the scrubber three at the outlet of the gases has a propeller.

19. A waste gas scrubber system according to claim 1 CHARACTERIZED in that the three bodies of the Waste Gas Wash System can be used separately.

20. A waste gas scrubber system, according to claim 1 CHARACTERIZED because it serves to reduce polluting gases, dusts, soot, charcoal, ferrous particles, acid gases and fatty gases, odors and noxious vapors, reducing all body flow any type of combustion

21. A waste gas scrubber system according to claim 1 CHARACTERIZED can be used in unventilated spaces, enclosed parking lots, and open spaces with its contaminated environment.

22.- A waste gas scrubber system, according to claim 1, characterized in that the water of the scrubber two and three maintains its correct level through the level and overflow water outlets.

23. A waste gas scrubber system, according to claim IM °

1 CHARACTERIZED because the three washing bodies can be placed repeatedly in an installation.

24. A waste gas scrubber system, according to claim No.

1 CHARACTERIZED because the filters rejilas in the three washing bodies can be placed in each one with grilles / meshes from smaller to wider width of diamonds / opening.