Description:SYSTEM FOR CAPTURING PARTICULATE MATTER

Field of the invention:

The present invention generally relates a particulate capture machine and more particularly, the present invention relates to a system for capturing particulate matter, wherein the system is configured to capture particulate matter from diesel/petrol engine, exhaust smoke, ambient air, construction dust, boiler and the like.

Background of the invention:

The role of a typical diesel particulate filter is to trap and remove the particulate components of the diesel exhaust stream, which include diesel soot and aerosols such as ash particulates, metallic abrasion particles, sulfates, and silicates, to prevent their discharge from the tailpipe. The Diesel particulate filters (DPF) should provide long-term operation without diminishing the filtration efficiency of the filter and performance of the engine. Factors related to the performance of diesel particulate filters include but are not limited to high temperatures (e.g., up to 1400° C.), capability to store soot and ash, pressure loss, low thermal mass, stability, and durability.

The DPF traps carbon particulates very efficiently and allow passing the exhaust gas. However, when there is excess deposit of carbon particulate in the DPF, the carbon deposits create trouble in the gas flow. This is when there is need to clean the DPF.

In the existing DPF, a filter made by ceramic material which arrests particulate matters from diesel exhaust only. After sometime this filter starts to choke with particulate matters and start to create backpressure to the engine, if backpressure exist from it’s limit, it is dangerous to diesel engine, over backpressure may be cause of engine damage permanently. To avoid this problem, the DPF requires regeneration, i.e. the DPF requires cleaning.

There are two methods to cleaning the DPF. This is called as regeneration process where the conversion of carbon particulates into carbon dioxide gas is achieved.

There are two types of regeneration process.

First is active regeneration in which the carbon particulate is burnt in the DPF at very high temperature about 550 to 650 degree Celsius. At this temperature, the carbon particulates convert into carbon dioxide gas and pass from DPF. To achieve required high temperature for burning the carbon particulate, the engine has to be accelerated at high speed or have to be run on full load. However, this method is fuel and time consuming. The driver requires doing this every time after signals received from the system of the vehicle.

The second method is passive regeneration wherein the DOC (diesel oxidation catalyst) is used. The passive regeneration is done at normal temperature and nitrogen dioxide (NO2) as the catalyst us used to oxidize particulate matter in the DPF. However, this method is not efficient to remove more carbon particulates than active regeneration.

One more method of clean the DPF is to clean the DPF manually with water and other chemicals. However, this is hectic process as one has to first remove the DPF from the vehicle and clean it and reinstall it. It is very expensive and time-consuming method. Specifically, if the DPF does not get required high temperature to convert soot into carbon dioxide gas, then DPF is fully choked, that time DPF cannot regenerate by self, so it needs to be cleaned by high pressure water. To perform this process, the DPF has to be removed from the vehicle exhaust system which is very expensive and time-consuming process. Further, there is more chances to breakage of DPF as the DPF is made from ceramic material. The ceramic material very brittle material like glass and has to be handled by care during cleaning and water cleaning pressure adjustment is also required. Similar problem lies when one tries to capture the smoke from boilers, power plants, exhausts and the like.

Accordingly, there exists a need to provide a system for capturing particulate matter which overcomes the abovementioned drawbacks.

Objects of the invention:

An object of the present invention is to capture particulate matters from any source such as diesel engine, boiler, ambient air, power plant and the like.

Another object of the present invention is to reduce requirement of energy for cleaning filter of particulate capturing machine.

Yet another object of the present invention is to reduce secondary emission such as carbon dioxide gas.

Summary of the invention

Accordingly, the present invention provides a system for capturing particulate matter. The system is configured to be placed at exhaust of the smoke emitting unit. The system comprises a cooling unit positioned at an exhaust of the particulate emitting unit. The cooling is unit configured to cool the smoke received therein. The system further comprises a particulate capture unit having an inlet for receiving the cooled smoke therethrough from the cooling unit and an outlet for emission of gases. The particulate capture unit includes a mesh covering entire width thereof which allows to pass the gases therethrough thereby trapping the particulate matter of the smoke therein. Specifically, the inlet is configured below the mesh and the outlet is configured above the mesh within the particulate capture unit.

Further, the particulate capture unit comprises a cleaning means connected to the mesh and configured to clean the mesh to release the particulate matter therefrom, a collection unit configured below the mesh to collect the particulates released from the mesh therein.

Typically, wherein in the mesh a metallic mesh.

Typically, wherein the cleaning means includes vibrating unit attached to the mesh to shake the mesh thereby release the trapped particulate matter therefrom.

Typically, wherein the cleaning means includes water spray unit configured to spray the water on the mesh to clean the mesh.

Brief description of the drawings:

The objects and advantages of the present invention will become apparent when the disclosure is read in conjunction with the following figures, wherein

Figure 1 shows a system for capturing particulate matter, in accordance with an embodiment of the present invention.

Figure 2 shows a system for capturing particulate matter, in accordance with another embodiment of the present invention

Detailed description of the invention:

The foregoing objects of the present invention are accomplished and the problems and shortcomings associated with the prior art, techniques and approaches are overcome by the present invention as described below in the preferred embodiments.

The present invention provides system for capturing particulate matter. The system captures particulate matters from any source such as diesel engine, boiler, ambient air, power plant and the like. Further, the system reduces requirement of energy for cleaning mesh filter of particulate capturing machine.

Referring now to figure 1 and 2, there is shown a system (100) for capturing particulate matter. The system (100) can be configured at exhaust of the smoke/particulate emitting unit (not shown). In an embodiment, the smoke emitting unit includes but not limited to a diesel engine, a boiler, power plant and the like.

Th system (100) comprises a cooling unit (10) positioned at an exhaust of the smoke/particulate emitting unit. Specifically, the inlet of the cooling unit (10) is attached to the outlet of the smoke or particulate emitting unit. The cooling unit (10) is configured to cool the smoke received therein from the smoke/particulate emitting unit.

In an embodiment, the cooling unit (10) includes but not limited to heat exchanger, a blower, a radiator and the like.

The system further comprises a particulate capture unit (20) having an inlet (22) for receiving the cooled smoke therethrough from the cooling unit (10) and an outlet (24).

In an embodiment, the particulate capture unit (20) is rectangular metallic structure. The particulate capture unit (20) includes a mesh (26) covering entire width thereof. In an embodiment, the mesh is made of metal as against the ceramic mesh of the prior art which is brittle.

Specifically, the mesh (26) allows to pass the gases therethrough and traps the particulate matter of the smoke therein.

As shown in figure 1, the mesh (26) is configured above inlet (22) which receives cooled smoke from the cooling unit. Further, the outlet (24) is configured above the mesh (26) within the particulate capture unit (20) such that gases passing through the mesh (26) are passed through the outlet (24).

The system (100) further comprises a cleaning means connected to the mesh (26) and configured to clean the mesh (26) to release the particulate matter therefrom.

The system (100) also comprises a collection unit (30) configured below the mesh (26) within the particulate capture unit (20) to collect the particulates released from the mesh (26) therein. Specifically, the collection unit (30) is a tray type structure to collect the particulate matter therein.

In an embodiment, as shown in figure 1, the cleaning means includes vibrating unit attached to the mesh (26) to shake the mesh thereby releasing the trapped particulate matter therefrom. In an embodiment, the vibrating unit shakes of the mesh (26) in continuous manner. In another embodiment, the vibrating unit shakes of the mesh (26) in non-continuous manner. Specifically, the vibrating unit includes a motor (42) having a shaft (44) attached to the mesh (26). The shaft (44) is attached to the motor (42) at off-center position so that when the motor (42) starts, the shaft (44) start moving up and down thus shaking the mesh to which the shaft (44) is attached.

In another embodiment, as shown in figure 2, the cleaning tube includes water spray unit configured to spray the water on the mesh (26) to remove the particulate trapped in a mesh (26). Specifically, the water spray unit is configured within particulate capture (20) above the mesh. The water spray unit includes at least one pipe (52) having plurality of nozzles configured thereon. The pipe (52) is connected to the water tank (54) through a pump (56). Specifically, the water is sprayed through the pipe with pressure to remove particles trapped in the mesh (26).

In an embodiment, the water spray unit (50) may work in continuous or non-continuous matter.

In an embodiment, a second filter is provided within the particulate capture unit (20) to filter the particulate matter from the water collected in the collection unit (40).

Advantages of the invention.

1. The system (100) capture particulate matters from any source such as diesel engine, boiler, ambient air, power plant and the like.

2. The system (100) reduces requirement of energy for cleaning mesh filter of particulate capturing machine.

3. The system (100) reduces secondary emission such as carbon dioxide gas.

The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present invention and its practical application, and to thereby enable others skilled in the art to best utilize the present invention and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstances may suggest or render expedient, but such omissions and substitutions are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present invention.

, Claims:I Claim

1. A system (100) for capturing particulate matter, the system (100) configured to be placed at exhaust of the smoke/ particulate emitting unit, the system comprising:
a cooling unit (10) positioned at an exhaust (12) of the smoke/particulate emitting unit, the cooling unit (10) configured to cool the smoke received therein; and
a particulate capture unit (20) having an inlet (22) for receiving the cooled smoke therethrough from the cooling unit (10) and an outlet (24) for emission of gases, the particulate capture unit (20) having,
• a mesh (26) covering entire width thereof which allows to pass the gases therethrough thereby trapping the particulate matter of the smoke therein, wherein the inlet (22) is configured below the mesh (26) and the outlet (24) is configured above the mesh (26) within the particulate capture unit (20);
• a cleaning means connected to the mesh (26) and configured to clean the mesh (26) to release the particulate matter therefrom; and
• a collection unit (30) configured below the mesh (26) to collect the particulates released from the mesh (26) therein.

2. The system (100) as claimed in claim 1, wherein in the mesh (26) a metallic mesh.

3. The system as claimed in claim 1, wherein the cleaning means includes vibrating unit attached to the mesh (26) to shake the mesh (26) thereby release the trapped particulate matter therefrom.

4. The system (100) as claimed in claim 1, wherein the vibrating unit includes a motor (42) having a shaft (44) attached to the mesh (26).

5. The system (100) as claimed in claim 1, wherein the cleaning means includes water spray unit (50) configured to spray the water on the mesh (26) to clean the mesh.

6. The system (100) as claimed in claim 1, wherein a second filter is provided within the particulate capture unit (20) to filter the particulate matter from the water.

7. The system (100) as claimed in claim 1, wherein the cooling unit is selected from any one heat exchanger, a blower, a radiator and the like.