JPS61274720A - Inertia type dust collector - Google Patents

Abstract

PURPOSE:To obtain the titled dust collector capable of effectively removing even dust with a particle size of 10mu or less, by providing a honeycomb shaped louver having a large number of partitioned small apertures. CONSTITUTION:The material constituting a louver 1 comprises ceramics having heat resistance and corrosion resistance. The louver 1 has a large number of honeycomb like partitioned small apertures. The cross-sectional area of each small aperture is set to 0.25-300mm<2> and the cross-sectional shape is set to an appropriate one such as a triangle, a circle or a diamond. The width of the louver 1 is set to 10-100mm, the angle theta of inclination thereof 10-40 deg. and the slit width S to about 0.5-12mm. Therefore, when dust-containing gas is introduced from a dust-containing gas inlet 3, dust almost entirely reaches a dust outlet 5 without passing through the louver by its inertia and can be separated from gas.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an inertial dust collector, particularly a louver type inertial dust collector.

(Prior art) From the standpoint of environmental conservation, it is not allowed to release the powder-containing gas and 1IIIi negative mist-containing scum of sulfuric acid that are discharged from various combustion engines, etc. It is required to remove the list in advance.

A louver type inertial dust collector is used as a means for removing horses.

Conventionally, this dust collector has a structure in which the louver is a plate-like body with a predetermined slit width, and the aim is to keep the plate-like body constant in one direction of the louver. Other than that, it did not have any partitions. Father, Looper T
-The material of construction was metal.

(Problems to be Solved by the Invention) However, the louvers of the above-mentioned conventional structure are not necessarily effective in attracting insects against fine dust particles of KIOμ or less, and for this reason, the slit width and the louver formation angle are Efforts have been made to change the structure, but this also has its limitations and has the disadvantage that it is not very effective.

(Means for reducing the number of paddy grains) The present inventor has conducted various studies with the aim of finding a looper-type inertial dust collector that eliminates the above-mentioned drawbacks and can effectively collect rice grains. It has been found that the above object can be achieved by changing the shape of the material so that its contact area with the gas increases.

Thus, the present invention provides an inertial dust collector having a bicam-shaped looper consisting of a large number of partitioned small openings.

In the present invention, any material constituting the looper can be used as long as it has heat resistance and corrosion resistance. Particularly, 72-block material has sufficient heat resistance and corrosion resistance, and can also support an exhaust gas treatment catalyst, for example. It is preferable because there is a cape where you can do it.

As such a cellulite material, for example, silicon carbide, complex silicon, aluminum titanate, β-spodumene, cordierite, mullite, aluminum can be used as appropriate. It is also possible to use it in combination.

In the present invention, the looper must have a large number of partitioned small openings in a honeycomb shape. The cross-sectional area of such a small opening is generally 0.25 to 300W1 degree. If the cross-sectional area is smaller than the above range,
Both are unfavorable, since gas pressure loss becomes large and processing power is wasted, and conversely, if it is larger than the above range, there is a risk of a decrease in dust collection efficiency. In addition, the cross-sectional shape of the small opening is rectangular,
Any suitable shape such as a triangle, circle, round shape, or diamond shape may be adopted.

Historically, the slit width of the looper is generally KO, 5 to 12M.
It is appropriate to adopt 11 degrees. If the slit size deviates from the above-mentioned range, it is not preferable because there is a risk of a large gas pressure loss and a decrease in efficiency.

Next, the present invention will be explained with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating a longitudinal section of an inertial dust collector according to an example of the present invention, where l is a looper, 2 is a case, 3 is a ship gas inlet, 4 is a clean gas outlet, and 5 is a dust outlet. be.

In such a collector 11i, when a gas containing 1 from the population 3 is introduced at a predetermined pressure according to a conventional method, the gas passes through a portion of the looper, becomes clean gas, and reaches the outlet 4, but the dust is absorbed by its inertia. Most of them reach the exit 5 on the opposite side of the entrance 3 without passing through the looper.
In this way, gas and dust are separated.

The looper in the dust collector according to the present invention generally has a smooth flow.
θ~10G tone, #ll upper oblique angle 10~40 degrees, Surin)
From the viewpoint of dust removal efficiency and gas pressure loss, it is appropriate that @8 has a ratio of about 0.5 to 12 cm.

Fig. 2 is an explanatory view of the dust collector according to the present invention, viewed from the clean gas outlet side with the case removed. Kato-sama Vc11 has been completed.

The third figure is an explanatory plan view of the gourd collecting system according to the present invention, and as can be understood from the figure, a pair of loopers 1 are provided facing the clean gas outlet 4 side and the rear thereof, respectively. However, the dust collector based on the single-fired F14 is not limited to the above-mentioned format; for example, it can be arranged in a hexagonal looper shape as shown in the plan view in Fig. 4, or it can be arranged in any other suitable shape. It can be placed in

The material of the looper, which is a feature of the dust collector according to the present invention, is preferably ceramic, and there is no particular restriction on the manufacturing method, and any known means may be adopted as appropriate, but especially k
By adopting the method shown in Figures I and 5, it is possible to easily construct the entire louver. That is, first, a two-cam-like structure having a large number of small openings 6 penetrating each other in the longitudinal direction is made using a known means g, and this is attached to a looper.
By cutting it diagonally and firing it, you can get a whole looper in one go.

The inertial type precipitator according to the present invention is suitable for treating gas containing dust and dust discharged from various mill factories, and exhaust gas containing unburned carbon particles discharged from vehicle engines.

In addition, when 7' is used for a vehicle engine, by supporting a portion of the looper with an oxidation and/or reduction catalyst, gases such as 11+, nitrogen oxides and carbon monoxide can be reduced, and the Since this part has a sound attenuating effect, it can also be expected to function as a sound deadening body.

(Examples) Example 1 Aluminum titanate was used as the ceramic material, and the slit width was 2cm, the pitch width was 21w11, and the wall thickness was 0.3cm, 50 pieces in the height direction x 60 pieces in the @ direction = aooo pieces. An inertial type precipitator with a small opening shown in Figs. That is, θ=30 hair, D-50■,
S = 2cm, full width 12cm, height 160mm x 2 rattan honeycomb-shaped louvers, $120 amount xso tan dust-containing waste inlet, width 120cm x 30cm dust outlet, width 120m
The main body with gQsm clean gas outlet is approximately 0.006 m.
An inertial type seed collector with a size of "T" was constructed.

From the dust-containing gas population, 200°0 combustion exhaust gas containing α1 g/il” of ash with an average particle size of lOμ was introduced into the precipitator at a rate of 21 ON m'/hour, and 10 - of bleed air was extracted from the dust outlet. The dust collection efficiency here was 50%.This is about 1.3 times the dust collection efficiency compared to the same device using a conventional slit-type louver tube and the same operation. .

[Brief explanation of the drawing]

FIG. 1 is an explanatory longitudinal cross-sectional view of an inertial type precipitator according to an example of the present invention, FIG. FIG. 3 is a plan view of an inertial type dust collector according to an example of the present invention, FIG. 4 is a plan view of an axis 9 of an inertial type dust collector according to another example of the present invention, and FIG. 5 is an inertial type dust collector according to the present invention. An explanatory diagram of an example of manufacturing a ceramic louver used in a dust collector. 1: Louver, 2: Case, 3: Dust-containing gas inlet, 4: Clean scum outlet, 5: Dust outlet, 6: Roots (small opening with -

Claims (1)

[Claims] 1. An inertial dust collector having a louver consisting of a large number of partitioned small openings, such as a honeycomb shape. 2. The inertial dust collector according to claim (1), wherein the small opening has a cross-sectional area of 0.25 to 300 mm^2. 3. The inertial dust collector according to claim (1), wherein the louver has a slit width of 0.5 to 12 mm. 4. The inertial dust collector according to claim (1), wherein the louver is made of a ceramic material. 5. Ceramic materials include silicon carbide, quantified silicon, titanium,
The inertial dust collector according to claim 4, which contains at least one of aluminum, β-spodumene, cordierite, mullite, and alumina as a main component.