KR20000018211A - The method of a minute dust collecting - Google Patents

Abstract

PURPOSE: A method is provided to collect dust by making the gravity and diameter of fine dust large using a centrifugal or cleansing typed collecting equipment. CONSTITUTION: A polluting material inlet to a transferring pipe(6) through a blower(2) from a polluting material source(1), and the polluting material forms whirlpool in a whirlpool plate(6). And a high pressure sprayer(5) for polymer aggregating agent sprays the polymer aggregating agent in order to connect the fine dust and the liquid molecule of the polymer aggregating agent. Then the particles of fine dust combined with polymer aggregating agent dried by gas temperature. The particle inlets to a dust collecting equipment through the blower, and the dust collected air is exhausted through an exhausting pipe(4).

Description

Collection method of fine dust {The method of a minute dust collecting}

The present invention relates to a method for collecting fine dust among air pollutants generated in various industrial facilities and to effectively collect dust by increasing the specific gravity and particle size of the fine dust using a centrifugal force dust collector and a cleaning dust collector. .

Generally, air pollution dust collection treatment includes electric dust collection facilities, filter dust collection facilities, centrifugal dust collection facilities, inertial dust collection facilities, and cleaning dust collection facilities. do.

However, in the case of electric furnaces, blast furnaces, etc., which have a large amount of air pollution, a lot of fine dust (dust) of less than 3 ㎛ is generated. This is a costly problem for installation and maintenance. In the case of centrifugal dust collectors or cleaning dust collectors, the cost of facilities and maintenance is reduced, but the fine dust of less than 3μ is extremely small and the particle size is small. In order to collect this, the treatment efficiency is lower than that of other treatment facilities, and these facilities are not used.

Accordingly, the present invention aims to solve the above-mentioned general defects and to increase the dust collection efficiency of fine dust which is 3μ or less by using a centrifugal force dust collector and a cleaning dust collector.

Is a block diagram of the present invention.

Figure 2 is a block diagram showing a conventional dust collecting state

※ Explanation of Codes on Major Parts of Drawings

1: air pollution source 2: blower

3: dust collection facility 4: exhaust pipe

5: polymer coagulant high pressure spraying device 6: feed pipe

7: vortex plate

In the air pollutant of the pollutant source (1) is introduced into the centrifugal force or washing dust collector (3) through the blower (2), and the dust is treated and exhausted through the exhaust pipe (4), the pollutant source (1) and the blower It is the structure which provided the vortex board 7 and the high molecular | density coagulant high pressure spraying apparatus 5 in the transfer pipe 6 between (2).

In the present invention as described above, when the pollutant is introduced into the transfer pipe 6 through the blower 2 from the pollutant source 1 in an industrial facility, the air pollutant introduced therein forms a vortex in the vortex plate 6. At the same time, in the polymer coagulant high pressure spraying device (5) installed in close proximity to the copper vortex plate (6), the liquid polymer coagulant is sprayed in the liquid molecular state, and the fine dust and the liquid molecule of the polymer coagulant are combined and dried by their own gas temperature. The fine dust particles of 3μ or less are converted into pollutants having a large specific gravity and particle diameter, and the dust is treated by being introduced into the dust collecting facility (centrifugal force or washing type) 3 through the blower (2) while the particle diameter and specific gravity are increased. The collected air is exhausted through the exhaust pipe (4).

In this case, the liquid polymer coagulant sprayed from the high pressure spray device 5 of the polymer coagulant may vary depending on the amount of contaminants introduced into the transfer pipe 6 and the particle size of the pollutant. The number of injections may be adjusted by installing a plurality of water, and the polymer coagulant may be a viscous liquid and fine dust solid, so that the cohesion may be well controlled.

In the present invention, the contaminated gas flowing into the conveying tube 6 is in a state of 150 to 200 ° C., and the fine dust having 3 μm or less in the contaminated gas and the liquid molecules of the polymer coagulant sprayed at 10 Kg / cm 3 or more in the conveying tube 6. Is combined, and the specific gravity and particle size are changed into materials, which are introduced into the dust collecting facility (3) and are collected and treated. Therefore, the dust collecting efficiency becomes higher than the efficiency of the electric dust collecting facility or the filter dust collecting facility, and the injection cost of the polymer coagulant is added. However, it is more economical than the operating cost of the bag filter.

Therefore, the present invention as described above, by installing a vortex plate and a polymer coagulant injector in the transfer pipe installed in the source of contaminants in a centrifugal dust collector or a cleaning dust collector to combine the liquid polymer coagulant molecules with fine dust to increase the specific gravity and particle size It is a very useful invention that can increase the dust collection efficiency of the fine dust by forming a large dust collecting treatment, and reduce the dust collection cost compared to the electric dust collector or filter dust collector.

Claims (1)

The air pollutant is introduced into the centrifugal force or the washing type dust collector (3) through the transfer pipe (6) and the blower (2), and the dust collecting process is carried out through the exhaust pipe (4). ) And the method of spraying particulate matter, characterized in that by installing a polymer coagulant spray device (5)