AN AIR POLLUTION FILTRATION SYSTEM

FIELD OF INVENTION

The invention relates to a portable, scalable, high efficiency and cost-effective air pollution filtration system. More specifically it relates to a system for filtering CO, CO2, SO2, total particulate matter and odor of Air/Flue Gas.

BACKGROUND OF INVENTION

The earth’s atmosphere is composed of about 78% Nitrogen, 21% Oxygen, 0.9% Argon and 0.1% other gases. The environment is sustainable enough to nurture every living being. It plays the vital role and is major essential factor for maintaining the ecological balance of the earth.

There are mainly 4 types of Air pollution sources: a. Mobile - Vehicles, Watercrafts, aircrafts, amphibious vehicles using MS, HSD, FO, ATS, Coal as a fuel. b. Stationary - Factories, Power plants, Oil Refineries, Industrial facilities, Small Power Generators, MSW/BMW Incinerators. c. Area - Wood burning fireplaces, agricultural area. d. Natural - Windblown dust, wildfires and volcanos.

The Air pollutants has severe impact on human body and the Environment.

To understand the source of Air Pollutants, the cause of fire needs to be understood. Different devices/Machines using fuel to combust produces air pollutions. For combustion, fire is required and the fire comprises of 4 components:

1. Oxygen

2. Fuel

3. Ignition 4. Chemical Reaction

To effectively combust the fuel, one must achieve stoichiometric condition which leads to reduction of Air Pollutants. Assuring each devise/Machine adhering to the norms for effective combustion of fuel is impractical and thus an external system is required to arrest these air pollutants to protect the environment.

Many conventional air pollution filtration systems are available using different methods of arresting the pollutants.

Indian Patent Application 202017033757 discloses a system comprising series of filters enclosed within a chamber having plurality of orifices to allow the smoke to enter and absorb at least one pollutant by one filter. The invention has a limitation of arresting one pollutant at each stage which increases the complexity of the system in order to operate and maintain the system.

Indian Patent Application 202221034063 discloses an embodiment comprising an Inlet to suck the air inside the system with the help of a blower motor, a processing unit to treat the sucked air using lime solution and an outlet to release the purified air in the ambiance.

The disadvantages of above-mentioned prior arts include formation of harmful chemicals, limitation in scaling, higher installation errors leading to smoke leakages and residue causing landfills.

The inventor of present invention has developed a system for eliminating the air pollutants like CO, CO2, SO2, total particulate matter and odour. The invention has varied uses to control air pollution and reduce carbon footprint. It can be installed at various locations and can be connected to machineries emitting smoke. The system acts as a filter to put immediate control on air pollution. The present invention is economical, easy to install, Scalable and easy to maintain. The making and use of various embodiments of the present invention are discussed in detail below and the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention and do not delimit the scope of the invention.

SUMMARY OF THE INVENTION

The present invention provides a system for filtering CO, CO2, SO2, total particulate matter and odor of Air/Flue Gas emitted by any source of air pollution mentioned above. Said system creates stoichiometric conditions in order to filter the harmful air pollutants by precipitating the charged molecules on opposite potential surface.

Accordingly, present invention provides an air pollution filtration system (100) comprising, a) a first air processing chamber (2) holding the air inside it for at least two seconds having one or more air inlet window(s) (1), a heating element (3) to heat the air held inside said air processing chamber (2) above the dew point of SO2, a metal plate (16) with terminal connectivity of negative charge (11) to negatively charge the components of the air held inside said air processing chamber (2), and one or more air exit window(s) (6) not in linear relationship with said air inlet window(s) (1) for releasing said heated and negatively charged air from said air processing chamber (2); b) a second air processing chamber (15) containing one or more hollow air pollution filtration chamber(s) (5) to receive said heated and negatively charged air released from said air exit window(s) (6) of said first air processing chamber (2) and holding inside a positively charged conductive plate (9) positioned equidistantly from the walls of said hollow air pollution filtration chamber(S) (5), and having inside a SO2, CO2 and odor neutralizer ( 13) to receive the air from said hollow air pollution filtration chamber (5); and c) one or more exhaust fan(s) ( 14) to continuously suck the polluted air from said air inlet window(s) (1) of the bottom air processing chamber (2) and pass the filtered and neutralized air from said second air processing chamber (15) to the environment.

BRIEF DESCRIPTION OF THE DRAWINGS

The embodiments herein will be better understood from the following detailed description with reference to the drawings, in which the reference numerals indicate:

Figure 1: Illustrates a perspective view of an air pollution filtration system (100) in accordance with one of the preferred embodiment of present invention;

Figure 2: Illustrates a perspective view of conductive plate (9) and non-conductive material (8) of said air pollution filtration system (100);

Figure 3: Illustrates a perspective view of air pollution filtration chamber (5) and plate fixing mechanism (7) of said air pollution filtration system (100);

Figure 4: Illustrates a perspective view of first air processing chamber (2) having air inlet window (1), air exit window (6), metal plate (16) and a connector (4) of said air pollution filtration system (100);

Figure 5: Illustrates a perspective view of neutralizer (13) of said air pollution filtration system (100);

Figure 6: Illustrates a perspective view of heating element (3) of said air pollution filtration system (100);

Figure 7: Illustrates a perspective view of an electric unit means (12) of said air pollution filtration system (100);

Figure 8: Illustrates the outer cover of the system of said air pollution filtration system (100);

Figure 9: Illustrates the perspective view of exhaust fans (14) of said air pollution filtration system (100);

DETAILED DESCRIPTION As mentioned, there was need of an air pollution filtration system which would be multipurpose, scalable and economical. The present invention tries to address this long felt need.

The making and use of various embodiments of the present invention are discussed in detail below and it should be appreciated that the present invention provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention and do not delimit the scope of the invention.

The present invention, relates to an air pollution filtration system for providing clear air into an environment in compliance with the regulatory Standards. The system comprises a series of air processing units, which provide clear air to the environment. The air passing through the first air processing chamber (2) burns the volatile/gasified matters and increases the temperature of the air above the dew point of SO2 which prevents formation of H2SO4. H2SO4 is acidic in nature and harmful for both the human as well as machine.

The positively charged plate inserted in the air pollution filtration chamber(s) (5) attracts the carbon, tar and particulate matters gets deposited on walls of the air pollution filtration chamber(s) (5).

The present invention relates to a system for elimination of air pollution emitted by air pollution sources mentioned hereinbefore. The said system eliminates the smoke and visible particles of air/flue gases by using multilayer processing technique.

This is an electro-mechanical system of components. The prime function is to filter carbon compounds, CO, CO2, SO2 and total particulate matter and release cleaner air in real timeReferring to Figures 1, 3, 4 and 8, the present invention provides an air pollution filtration system (100) comprising, a) a first air processing chamber (2) holding the air inside it for at least two seconds having one or more air inlet window(s) (1), a heating element (3) to heat the air held inside said air processing chamber (2) above the dew point of SO2, a metal plate (16) with terminal connectivity of negative charge (11) to negatively charge the components of the air held inside said air processing chamber (2), and one or more air exit window(s) (6) not in linear relationship with said air inlet window(s) (1) for releasing said heated and negatively charged air from said air processing chamber (2); b) a second air processing chamber (15) containing one or more hollow air pollution filtration chamber(s) (5) to receive said heated and negatively charged air released from said air exit window(s) (6) of said first air processing chamber (2) and holding inside a positively charged conductive plate (9) positioned equidistantly from the walls of said hollow air pollution filtration chamber(S) (5), and having inside a SO2, CO2, volatile organic contents, methane and odor neutralizer (13) to receive the air from said hollow air pollution filtration chamber (5); c) one or more exhaust fan(s) ( 14) to continuously suck the polluted air from said air inlet window(s) (1) of the bottom air processing chamber (2) and pass the filtered and neutralized air from said second air processing chamber (15) to the environment.

Figure 6 is an illustrative perspective view of heating element (3) that cab ne preferably used in this air pollution filtration system (100).

In a preferred embodiment, the hollow air pollution filtration chamber(s) (5) is constructed from the conductive material selected from aluminium, iron, copper, copper coated with silver, mild steel and stainless steel. There can be more than one hollow air pollution filtration chamber(s) (5) to achieve higher efficiency by providing larger filtration area to handle large volume of air/flue gases. They can be connected in series or in parallel configuration. Said hollow air pollution filtration chambers (5) can be placed side by side and the pairs of air exit windows (6) and hollow air pollution filtration chambers (5) can be created, alternatively said hollow air pollution filtration chambers (5) can be placed in series one above the another to create a single hollow air pollution filtration chambers (5) with multi conductive plates (9) and it is connected with the single air exit window (6) of first air processing chamber (2) depending on the type of air needs to be purified. Referring to Figures 4 and 8, in a preferred embodiment, the hollow air pollution filtration chamber(s) (5) and said air exit window(s) (6) are put in contact with each other by a connector (4). This connector (4) is a socket(s) protruding from said air exit window(s) (6) in which the hollow air pollution filtration chamber (5) is snugly fitted. The number of air pollution filtration chamber(s) (5) can be calculated as per flow rate, type of air, in case of flue gas the type of machine/device generating smoke and components of the smoke. The number of air pollution filtration chambers (5) vary case to case.

In another preferred embodiment as shown in Figure 2, 3 and 8, the conductive plate (9) is attached to a non-conductive material (8) and is fixed inside said hollow air pollution filtration chamber (5) at said nonconductive material (8) portion with the help of a holder (7). Preferably, said non-conductive material (8) is an epoxy material and said holder (7) is constructed from the nonconductive material selected from epoxy resins.

Conductive plate (9) is preferably constructed from the conductive material selected from copper, copper coated with silver, mild steel and stainless steel. In a most preferred embodiment, the conductive plate (9) has smooth outer surface and round corners to ensure no electric leakage through cracks and sharp pointed edges. They are machined to smooth surface to ensure no electric leakage through cracks or sharp pointed edges.

In yet another embodiment, as shown in Figures 1 and 7, the metal plate (16) and conductive plate (9) is negatively and positively charged by an electric unit means (12) circulating the electric charge from negative to positive connections. In a preferred embodiment, the conductive plate (9) is positively charged by said an electric unit means (12) through a contact member (10) providing terminal connectivity of positive electric charge. Preferably, said electrical unit means (12) is provided with led indicator, earth pin and fuse.

In further preferred embodiment, neutralizer (13) contains of pallets of CaCO3 and activated carbon. Its structure is depicted in Figure 5.

The exemplary exhaust fan(s) (14) as depicted in Figure 9 is constructed from mild steel, stainless steel or combination thereof.

The mechanism is simplified and fool-proof to ensure that any unskilled operator can also be able to operate and fix it.

One electric unit means (12) can be used to connect almost five air pollution filtration assemblies.

In accordance one of important embodiment of the present invention, the method of working of said system (1) is explained below:

The air from the outer environment/ machine exhaust is received in first air processing chamber (2) through one or more air inlet window(s) (1) with the help of exhaust fan(s) (14). The received air is held in said first air processing chamber (2), and heated above the dew point of SO2 using heating element (3) and passed smoothly to the second air processing chamber (15) through one or more air exit window(s) (6). The temperature above the dew point of SO2 reduce H2O content in the air and hot air rises above which pulls the air from external environment and air flow starts. The heater also helps to not to reach the dew point of certain flue gases like SO2. The air processing chamber’s volume is dependent on the volume of air pulled out of environment. The metal plate (16) negatively charge the components of the air.

The pollutants molecules breaks/ disintegrate. The carbon molecules and tar stick to the inner wall of the air pollution filtration chamber (5) as well as the plate (16) and (9). While Oxygen gets released to the air. The deposited carbon on the air pollution filtration chamber (5) and the plates can be scraped easily. The scraping can be done regularly for effective performance of the unit. As the air is heated at the first air processing chamber (2) the deposit on the inner wall of the filtration chamber has less water vapours and SO2 is released to wards neutralizer (13).

The neutralizer preferably has a combination of 2 components CaCO ₃ and activated carbon.

The SO2 from the air gets reacted with CaCO ₃

SO2 + CaCO ₃ CO2 + CaSO ₃

And CO2 released from the reaction gets arrested by activated carbon. The activated carbon also helps in arresting volatile organic compounds, Methane and odour.

Thus, releasing clear air in the environment.

Inventive subject matter of the present invention provides a system and method for reducing pollutants, harmful gases and odour.

Getting oxygen released through such activity is itself an advantage. The elimination of the CO, CO2, SO2, tar and total particulate matter is achieved which is the major concern across the globe.

The present invention is further described with the help of the following examples, which are given by way of illustration purpose only and therefore should not be construed to limit the scope of the invention in any manner. Example 1: Working and performance of system as disclosed in present invention: The air pollution filtration system (100) was constructed as per below mentioned specifications and installed at the pollution generating location and smoke release were analysed by Flue Gas Analysis Method.

The chemical properties of exit gas with respect to the structural and functional arrangement of system. Results are tabulated in table 1 and 2

Table No. 1

Table No. 2

The present invention provide a simple, scalable and low maintenance system for filtering the air pollutants. This system can be fixed at the exhaust of the machineries emitting the smoke in order to reduce the air pollution. It can also be installed in open spaces, rooms or auditoriums.