JPS5820652B2 - Circulating dust collector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dust collection device that can remove particulates from fumes with high efficiency in the process of collecting dust from factory exhaust gas, gas containing gas from a vacuum cleaner, and the like.

Examples of factory pollution include air pollution and water pollution1.
, noise, odor, and land subsidence, but air pollution accounts for a large proportion of these complaints.

The present invention is a technology that can greatly contribute to preventing such air pollution.

In recent years, dust collection technology has advanced and it has become less difficult to remove particulates from fumes, but in order to improve the removal rate and speed, and to meet the demand for a simple structure for the equipment, it is necessary to , further technological development is required.

In this regard, Japanese Patent Application Laid-open No. 48-43246 and Utility Model Application No. 55-
As described in Japanese Patent No. 177804, so-called impact-type oil separators or deaerators are known, but there are problems with the jet airflow forming means and the impact means, and they are ultimately inadequate as dust collectors. Ta.

The present invention has been made in view of the above-mentioned current situation, and
Containing gases (air and other gases containing dust and mist) from conventional factory exhaust gases and vacuum cleaners.

same as below. ) To solve the drawbacks and problems of dust removal in dust collectors used in the treatment of This has never been attempted before: colliding particles in the direction of gravity, giving a sharp refraction to the airflow, colliding with numerous collision plates from the upper stage to the lower stage multiple times, and separating and collecting the particles using their inertial force. It aims to purify using a new concept, and has the advantage that it has a simple structure as a purification device, uses a small electric power or compressed air source as a driving source, and can be freely manufactured from small portable devices to large devices depending on the processing purpose. , a circulation system that can demonstrate high purification efficiency with low operating costs and easy maintenance in a wide range of applications, from removing nicotine from pipes to removing dust from smoke emitted from household vacuum cleaners and large factories. The purpose is to provide a type dust collector.

The present invention will be explained in detail below with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing the structure of a small-sized intermittent operation type (purification method for every fixed amount) water purification device as a first embodiment of the present invention.

In the figure, 1 is the tower main body, and 1F is the tower top plate, which is detachably engaged with the tower main body.

Reference numeral 2 denotes a dust-containing gas circulation cylinder, which is a cylinder made of a corrosion-resistant metal or synthetic resin material, and is coaxially attached to the center of the tower body 1 with a fixed interval above and below.

3 is a funnel-shaped airflow restrictor inserted into the lower end opening of the circulation cylinder, and 3N is its injection port.

Reference numeral 4 denotes a rotating fan, which is driven at an arbitrary rotational speed by a variable speed motor 5 mounted on the back side of the tower bottom plate shown by a broken line, and drives the gas W1 in the tower from the injection port 3N of the air flow restrictor 3 into the circulation cylinder 2. Inject in the direction of arrow a.

The injected dust-containing gas flow W2 attracts the dust-containing gas W1 from the gap between the lower end 2E of the circulation cylinder 2 and the air flow restrictor 30, moves up the circulation cylinder 2 at a predetermined flow velocity, and is ejected from the upper end opening 2F.

Reference numeral 6 designates a multi-stage collision plate, which is one of the essential parts of the present invention, and is made of a synthetic resin molded product such as polyacrylonitrile.The outer periphery 6R is slidably fitted to the inner wall 1D of the column, and the center It is fixed to the circulation cylinder 2 through the hole.

6C is the collision plate 60 ventilation part, and although two are provided symmetrically, three or more may be provided.

Further, the ventilation portion 6C may be a hole or the like instead of a cutout as shown in the figure.

6E is a barrier provided on the periphery of the collision plate 60, and in this case, has a height of several mm to several meters.

As shown in the figure, the collision plates 6 are spaced apart from each other, and in this embodiment, seven plates are fixed, with the position of the ventilation portion 6C shifted by 90° for each plate.

7 is a lid, which is detachably provided on the top plate of the tower.

8 is a clean gas discharge port after purification, and 9 is a window for observing the transparency of gas containing gas, but these are unnecessary if the tower body 1 is made of a transparent material such as transparent synthetic resin.

Reference numeral 10 denotes an air introduction pipe for aeration of the original sound cylinder gas, and its tip 1ON is inserted into the lower end 2E of the circulation cylinder.

11 is a tower base, 12 is an ON/OFF switch for the motor 5, 13 is a rotation speed adjustment dial for the motor 5, and 14 is an air transport pump.

Next, the purification operation and effect of this device will be explained.

Dial 1 to set the motor speed according to the concentration of contamination containing gas.
3 and rotate the motor 5.

The original sound dust gas W1 entering from the dust inlet 10 by the air transport pump 14 rises in the direction a, and is ejected from the upper end 2F of the circulation cylinder in the direction indicated by the arrow.

The ejected gas W3 is sucked into the rotating fan 4, and descends while being successively changed into an air stream by a plurality of collision plates.

When this airflow changes direction rapidly, the inertial force of the particles acts due to the difference in mass between the gas and the suspended particles, causing them to be separated and collected by the collision plate 6.

In addition, by configuring the collision plate 6 with swamp material or packing the swamp material onto the baffle board, a removal rate nearly twice as high can be obtained with 1/3 the amount of swamp material compared to the conventional swamp over-collection method. It was experimentally confirmed that

The above is a description of an intermittent operating example device that purifies a constant amount of gas containing gas at regular intervals.After the purification is completed, the dust and mist remain on each of the 607 collision plates. , and the circulation cylinder 2 and the group of collision plates 6 are taken out of the tower and cleaned or collected.

However, if a swamp material is used in combination, the above operation may be repeated several to several dozen times before replacing or cleaning the p material.

Next, a second embodiment of the continuous operation type purification device according to the present invention will be described.
This will be explained with a diagram.

FIG. 2 shows a configuration, for example, as a three-stage continuous device, with IA and IB.

1C indicates a dust collector whose basic configuration is the same as the dust collector shown in FIG.
The difference is that the gas containing gas W5 fed into the column is further purified by the next columns IB and IC.

That is, the difference is that the columns IA and IB and the columns IB and IC are connected via an air pump P by clean gas transfer pipes 21A and 21B.

In this embodiment, gas W5. W6. W7 is sequentially purified in the respective purification towers IA, IB, and IC.

W8 is clean gas that has reached a predetermined degree of purification, and its flow rate F8 is approximately the same as the above-mentioned air supply flow rate F, and is, for example, supplied to a reuse line.

This continuous device also stops for a certain period of time to clean the group of collision plates 6 outside the tower, but depending on the scale, it is also possible to provide a dust suction pipe for each stage of collision plates 6. If configured as follows, it becomes completely continuous.

In addition, in FIG. 2, 2A, 2B, and 2C indicate swamp materials.

The above is the structure and operation of the first and second embodiments of the present invention, that is, the intermittent operation type and the continuous operation type.

Of course, the present invention may be configured not only in a vertical type but also in a horizontal type.

The present invention is constructed as described above, and the means for forcibly circulating the gas containing gas, in particular, the means for sucking up and spouting the gas containing gas through the circulation cylinder, is provided by the rotation of a rotating fan provided below the circulation cylinder. and an airflow throttling mechanism, both of which form a jet airflow into the circulation cylinder,
In addition, dust collection barriers are provided on the outer periphery of the collision plates arranged in multiple stages in the space between the inner wall of the tower body and the circulation cylinder and/or on the periphery of the ventilation section, so dust collection is improved compared to the conventional technology mentioned above. It has extremely high dust efficiency, and by preferably packing a sludge between the collision plates, its purification ability can be significantly improved compared to conventional dust collectors. It also has a simple structure and does not require a large amount of power to drive. It is easy to maintain and has high purification efficiency or excellent dust separation performance, and is effective in fields such as vacuum cleaners and factory exhaust gas purification.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing the structure of a small-sized intermittent water purification device according to a first embodiment of the present invention, and FIG.
FIG. 2 is an explanatory diagram of the configuration of a continuously operating water purifier according to an embodiment of the present invention. 1... Purification tower main body, 1D... Inner wall of tower main body, 2... Original sound dust gas circulation cylinder, 2F...
... Upper end opening of the above 2, 2E... Lower end opening of the above 2, Wl, W2°W3... Dust-containing gas in the tower, W4. W8...Clean gas, 6...
・Multi-stage collision plate, L...Gap between upper and lower collision plates, 6
C: Ventilation part of the collision plate, 6R: Barrier around the periphery of the collision plate, 4: Rotating fan, 5:
...Variable speed motor for fan drive, 3...Airflow throttling mechanism, 3N...Injection port of 3 above, a...
...The original sound gas jet from the above injection port, P...
・Air transport pump, 10...Air introduction pipe,
1ON... Ventilation outlet into the circulation cylinder 2, 8...
...Clean gas outlet.

Claims (1)

[Claims] 1 In the center of the dust collection tower body, a gas circulation cylinder having upper and lower openings is arranged coaxially with a space between its upper and lower ends and the main part and bottom of the tower body, and the inside of the tower is Means for sucking up and circulating the gas containing gas introduced into the column through the circulation cylinder is provided, and collision plates each having a ventilation portion are arranged in multiple stages in the space between the inner wall of the column main body and the circulation cylinder. The gas ejected from the circulation cylinder applies a sharp refraction to the forced circulation airflow that forms in the space between the circulation cylinder and the inner wall of the tower main body, thereby separating and collecting dust and mist in the gas on the collision plate. In the circulating dust collector, the means for sucking up and ejecting the gas containing gas through the circulation cylinder includes rotation of a rotating fan provided below the circulation cylinder;
and an airflow throttling mechanism, both of which form an injected airflow into the circulation cylinder, and an outer periphery of collision plates arranged in multiple stages in the space between the inner wall of the column main body and the circulation cylinder. Or a circulation type dust collector characterized by providing a dust collection barrier around the periphery of the ventilation section.