JP2001234729A - Dust collecting method and dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collecting method and dust collector which can be manufactured at a low cost and has high economic efficiency essential to environmental conservation because of no running cost by utilizing exhaust pressure of exhaust gas as required dust removal force, and connecting the collector to the existing exhaust pipe without remodeling an engine. SOLUTION: In this filtering and dust collecting apparatus for scavenging floating particles and dust discharged from a diesel engine by a filtering material, the exhaust pressure of exhaust gas is utilized to rotate an impeller, and floating particle and dust stacked on the filtering material is continuously automatically removed by rotating force of the impeller to be stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and an apparatus for collecting suspended particles and dust generated by incomplete combustion of a diesel engine using light oil such as an automobile as a fuel, processing the collected particles into a clean gas and discharging the gas. .

[0002]

2. Description of the Related Art With regard to the collection and removal of suspended particles and dust emitted from a diesel engine, almost no effective system or device has been developed and none is economical.

[0003] A method has been considered in which airborne particles discharged from a diesel engine due to incomplete combustion are collected by a filter medium and treated by burning the filter medium. However, continuous operation cannot be performed due to clogging of the filter medium. In the case of treatment by combustion or the like, the production cost becomes enormous, and it is economically impossible to equip a vehicle or the like.

[0004] Recently, health hazards caused by exhaust gas from diesel engines have become a problem, and it has been recognized as a source of pollution on national roads with heavy traffic, and it is becoming impossible to operate diesel vehicles without purifying exhaust gas.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention eliminates pollution by collecting and treating suspended particles and dust emitted from a diesel vehicle engine by a new method and apparatus, thereby eliminating the pollution of residents. It is possible to provide an inexpensive and simple installation that does not require modification of the engine or the vehicle and of course has a light burden on the owner of the vehicle, as well as maintaining the health.

[0006]

In order to achieve the above object, in the dust collecting method according to the first aspect of the present invention, the exhaust gas is collected by filtering suspended particles and dust on a filter medium and filtered. Causes clogging of the filter medium. In the filter dust collection, if clogging occurs, the pressure loss of the exhaust gas increases, and the engine stops or the exhaust gas temperature rises, making it impossible to operate. In the filtration dust collection method, it is an essential condition to appropriately prevent this “clogging”. In particular, the engine mounted on the vehicle is difficult to remodel in terms of structure, and there are many restrictions on safe driving and economics. In order to solve such a restriction, the present invention utilizes the exhaust gas discharge pressure to rotate the impeller and collects suspended particles and dust loaded on the filter medium by the rotation force, thereby automatically clogging. This prevents continuous operation.

According to a second aspect of the present invention, in the dust collection method of the first aspect, the impeller is rotated by the exhaust pressure of the exhaust gas,
This device automatically and continuously prevents clogging by converting the rotational force into a vertical movement and applying expansion / contraction / vibration.

According to a third aspect of the present invention, there is provided an apparatus for transmitting the vertical movement and vibration generated by the apparatus of the second aspect in conjunction with the filter medium in the dust collecting method of the first aspect.

[0009]

The dust collecting method according to the first aspect of the present invention is a new method in which clogging of the filter medium is prevented and the method is automatically and continuously performed, and the energy required for the method uses the exhaust gas of the engine. In a filter dust collector, it is a condition of continuous use to remove suspended particles and dust collected by the filter medium, and the present invention has an effect that the vertical movement and vibration of the filter medium are proportional to the engine speed. The operation can be performed without using any other power by using the exhaust pressure.

According to a second aspect of the present invention, there is provided an apparatus for rotating an impeller by utilizing the exhaust pressure of the dust collection system of the first aspect, and imparting vertical movement and vibration to the filter medium by the rotational force. is there.

According to a third aspect of the present invention, the filter medium is mounted on a retractable spring in order to apply vertical movement and vibration to the filter medium by using the exhaust pressure of the dust collection system of the first embodiment.

[0012]

1 shows an embodiment of the present invention, in which 1 is an outer cylinder of a dust collector, 2 is a filter medium, 3 is a spring,
4 is a vertical movement and a diaphragm, 5 is an impeller, 6 is a link mechanism,
7 is an exhaust gas inlet, 8 is an exhaust gas outlet, and 9 is a storage room for suspended particles and dust.

The exhaust gas temperature is, according to the example, up to 180 ° C.
Before and after, the exhaust pressure is up to 2500 Pa at 7.
Therefore, the constituent materials are all made of steel except for 2, and the filter medium 2 has a heat resistance of 300 ° C. and a porosity of 20%. Therefore 2
The filter medium of (5) is at least 5 times the cross-sectional area of (7). The elastic spring 3 has a flexure of 30 mm, and the filter medium 2 has a flexure of 7 and a length of 30 m.
m above and below, and 10 laterally to vibration.
mm of deflection.

The suspended particles and dust collected by the filter medium 2 are accumulated in the storage chamber 9 and are processed during a regular inspection of the vehicle.
In addition, the storage chamber has a volume that can correspond to a travel distance of 3 to 6 months.

[0015]

The dust collecting method according to the first aspect of the present invention is a new method for automatically and continuously preventing clogging of the filter medium by using the exhaust gas pressure of the engine as a power source. The system does not use energy, does not require engine modification, has low manufacturing costs, has zero running costs, and has high economic value. It clears the regulation values of suspended particles and dust from diesel engines and does not impair the health of residents. .

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a dust collecting system and a device according to the present invention.

FIG. 2 is a transverse sectional view of the same.

FIG. 3 is a detailed view of an impeller 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Apparatus outer cylinder 2 Filter medium 3 Spring 4 Vertical / vibration plate 5 Impeller 6 Link 7 Exhaust gas inlet 8 Exhaust gas outlet 9 Collection storage chamber 10 Measurement port

Claims (3)

[Claims] An impeller is rotated by utilizing a discharge pressure of exhaust gas in a filter dust collecting device for collecting suspended particles and dust discharged from a diesel engine by a filter medium, and the filter medium is loaded on the filter medium by the rotational force. Dust collection system and device that automatically and continuously removes suspended particles and dust. 2. The method according to claim 1, wherein the suspended particles and dust loaded on the filter medium are continuously and automatically removed.
A continuous wiping method and apparatus that rotates an impeller by the discharge pressure of exhaust gas and applies up and down movement and vibration to the filter medium by the rotational force. 3. A method of mounting a filter medium in the dust collection method according to claim 1, wherein the filter medium is continuously mounted on an expandable spring, and the filter medium is expanded and contracted and vibrated.