JPH0215543Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dust collection device used for processing exhaust gas and the like.

[Conventional technology]

2. Description of the Related Art Conventionally, as an exhaust gas treatment device for an engine, those illustrated in FIGS. 3 and 4 are known.

That is, the exhaust gas treatment device shown in FIG. 3 is a filter cloth (filter) type dust collector, in which the exhaust gas G1 is blown into a container 2 in which a filter cloth 1 is provided.
It is configured to separate dust D to obtain clean gas G2.

The exhaust gas treatment device shown in FIG. 4 is a water washing dust collector, and the inside of the container 3 is partitioned by wall plates 4 provided alternately on the top and bottom surfaces, forming a gas passage. Washing water W is stored in this passage, and the exhaust gas G1 is blown into the washing water W to separate dust and obtain clean gas G2.

In addition, although not shown, there is an electrostatic precipitator that separates and collects carbon particles in exhaust gas on a dust collection electrode using Coulomb force, and a combination of the filter cloth type dust collector and the water washing dust collector. Devices are also known.

[Problem that the invention attempts to solve]

However, the filter cloth type dust collector has a problem in that the filter cloth quickly becomes clogged, and the water-washing dust collector requires time and effort for maintenance such as replenishing washing water. There was a problem.

Other devices also had problems in that operating costs were high due to replacement of clogged filters, and dust particles were not necessarily separated and collected efficiently.

[Purpose of invention]

The present invention was developed to solve the above-mentioned problems, and has a simple structure that prevents filter clogging, requires little maintenance, and has high dust collection efficiency. The purpose is to provide a collection device.

[Means for solving problems]

In order to achieve the above object, the present invention provides a hollow cylindrical container in which an inlet is formed in the peripheral wall into which dust-containing gas is blown, and a substantially circumferential container in the center of the container so as to be spaced from the inner surface of the peripheral wall. a plurality of cylindrical filter elements disposed in the container and communicating the inside and outside of the container; a brush member provided at the center of the plurality of filter elements and in contact with the surface of each filter element; and a brush member that rotates the filter element. It is characterized by comprising a drive mechanism for moving the vehicle.

[Effect]

The relatively heavy dust contained in the dust-containing gas that has entered the inside of the container collides with the peripheral wall of the container and the filter element when the dust-containing gas flows inside the container, falls, and is separated and collected. Relatively light dust adheres to the wall of the filter element and is separated and collected when the dust-containing gas passes through the filter element and exits the container.

When the filter element is rotated by the drive mechanism, the dust attached to the surface of the filter element comes into contact with a brush member provided in the container, and the surface is rubbed by the brush member. It is removed by this. Therefore, the filter element does not become clogged.

〔Example〕

An embodiment of the present invention shown in FIGS. 1 and 2 will be described.

The main body of the dust collection device 5 is a hollow cylindrical container 6 whose upper and lower surfaces are closed, and a peripheral wall 7 of the container 6.
It can be installed in a predetermined position by legs 8 that extend downward. Also,
The lower part of the container 6 has a constricted funnel shape, and a nozzle 9 for taking out dust is provided at the lower end thereof.

Further, in the upper part of the container 6, an inlet 10 for the dust-containing gas is provided in the peripheral wall 7, and the inlet 10 includes the following:
An inlet pipe 10a is attached and configured to be able to blow dust-containing gas into the interior of the container 6.

Next, inside the container 6, there are provided a plurality of filter elements 11 each having an elongated cylindrical shape and having a closed lower end surface and an open upper end surface. The plurality of filter elements 11 (six in this embodiment) are arranged in a substantially circular shape (in this embodiment, a regular hexagonal shape) at a predetermined distance from the inner surface of the peripheral wall 7 at the center of the container 6. ) are arranged at each vertex position.

The upper end of each filter element 11 is rotatably fitted into a through hole 12 formed in the upper surface plate 6a of the container 6, and furthermore, the upper end of each filter element 11 is provided with an axis centered on the filter element 11. The driven gears 13 are respectively attached so as to coincide with each other. Each driven gear 13 comes into contact with the outer surface of the top plate 6a via a ring-shaped seal member 14, thereby suspending and holding the filter element 11 inside the container 6. Further, each driven gear 13 is provided with a through hole 13a, and the inner chamber 11a of the filter element 11 is open upwardly. Further, each driven gear 13 meshes with other driven gears 13 located on both sides thereof. A drive gear 15 is meshed with one of the driven gears 13. The rotation shaft 15a of the drive gear 15 is operatively connected to a drive source (not shown), and the filter element 11 is synchronously moved by a drive mechanism 16 comprising these drive sources, the drive gear 15, the driven gear 13, etc. It is configured to rotate.

Next, a support member 17 is provided horizontally in the lower center of the interior of the container 6. A brush member 18 is fixedly attached between the center portion of the support member 17 and the top plate 6a located at the center of the circular arrangement of each filter element 11. The brush member 18 is composed of a fixed support rod 18a and countless brush wire rods 18b provided on the circumferential surface thereof.
The brush wire 18b is attached to each filter element 1.
It is configured to contact the surface of 1.

Next, a discharge chamber 19 to which an outlet pipe 19a is connected is provided in the upper part of the container 6, and the discharge chamber 19 is provided with an outlet pipe 19a. clean gas,
It is configured to be led out of the system.

Next, the operation of the above configuration will be explained.

The dust-containing gas is introduced into the inlet pipe 10a and blown into the interior of the container 6 through an inlet 10 provided in the peripheral wall 7 of the container 6. The dust-containing gas that has entered the inside of the container 6 is separated between the filter element 11 and the peripheral wall 7.
It descends while flowing as shown by arrow A2. During the flow inside the container 6, the relatively heavy dust in the dust-containing gas collides with and adheres to the inner surface of the peripheral wall 7 and the filter element 11, falls downward, and is separated and collected.

Then, the dust-containing gas enters the funnel-shaped portion below the container 6, and gradually turns into an upward flow in the center, as shown by arrow A3. Relatively light dust contained in the dust-containing gas is separated and collected by adhering to the wall of the filter element 11 when the dust-containing gas passes through the filter element 11 and exits the container 6. be done.

The clean gas obtained by passing through the filter element 11 is led to the outlet pipe 19a and discharged to the outside of the system.

On the other hand, when the dust collection device 5 is used, the drive source of the drive mechanism 16 is operated when necessary according to the dust collection situation. The driving force of the driving source is the rotating shaft 15
The signal is transmitted to one of the driven gears 13 via the drive gear 15 and the drive gear 15, but since each driven gear 13 meshes with each other, all the driven gears 13 are rotated synchronously. And each filter element 1
1 rotates while filtering dust-containing gas as described above, and the surfaces of each of the plurality of filter elements 11 are simultaneously rubbed by one brush member 18. Therefore, since the dust adhering to the surface of each filter element 11 is removed, each filter element 11 does not become clogged.

In the embodiment described above, the material of the filter element 11 is not particularly limited, but if a filter element made of a heat-resistant material such as ceramics or sintered metal is used, this device can handle high-temperature dust-containing gas such as engine exhaust gas. It can also be used for

Furthermore, in the embodiment described above, the filter element 11 may have a double structure. In that case, if you install a filtration element on the outside and use a catalyst on the inside, the dust that interferes with the catalytic action can be removed.
Removed by centrifugal force and filtration. Therefore, hydrocarbons, odors, etc. in the dust-containing gas are efficiently converted into harmless and odorless substances by the oxidizing action of the catalyst.

[Effect of idea]

As explained above, the present invention has a filter element located at the center of a plurality of rotating filter elements arranged circumferentially.
A book brush member is provided so that dust adhering to the surface of each filter element is constantly removed by the brush member. Therefore, according to the present invention, it is possible to prevent clogging of multiple filter elements with a single brush member, and to create a simple dust collection device that requires no maintenance and has high dust collection efficiency. The effect is that it can be realized by the structure.

[Brief explanation of drawings]

FIG. 1 is a horizontal sectional view showing the configuration of an embodiment of the present invention, FIG. 2 is a vertical sectional view thereof, FIG. 3 is a sectional view showing an example of a filter cloth type dust collector, and FIG. 1 is a sectional view showing an example of a water washing dust collector. 5... Dust collection device, 6... Container, 7... Peripheral wall, 10... Inlet, 11... Filter element, 16... Drive mechanism, 18... Brush member.

Claims (1)

[Scope of utility model registration request] A hollow cylindrical container with an inlet formed in the peripheral wall into which dust-containing gas is blown, and a container arranged approximately circumferentially in the center of the container so as to be spaced from the inner surface of the peripheral wall, communicating the inside and outside of the container. The present invention is characterized by comprising a plurality of cylindrical filter elements, a brush member provided at the center of the plurality of filter elements and in contact with the surface of each filter element, and a drive mechanism for rotating the filter element. dust collection device.