KR-20260063637-A - Washing tower for flue gas treatment with reverse flushing capability including a filter bed in the form of an inclined plate

Abstract

The present invention comprises a cleaning tower having a cylindrical shape and composed of a bottom, a middle, and a top; a gas inlet located on one side of the bottom of the cleaning tower for gas inflow; a gas outlet located on one side of the top of the cleaning tower for gas discharged from the inflow; a cleaning means including a filter layer and a cleaning liquid spray nozzle for cleaning the inflowed gas in a passage located on the middle, through which the gas inflowed through the gas inlet moves to be discharged through the gas outlet; a mounting means for mounting the filter layer on the other side, which is a wall facing the one side of the cleaning tower wall where the cleaning means is located; a cleaning liquid tank located at the bottom of the cleaning tower for storing cleaning liquid supplied to the cleaning liquid spray nozzle, configured such that the heights of the one side and the other side where the mounting means is installed are different so that the filter layer is installed in an inclined form; a first supply pipe connected to one side of the cleaning liquid spray nozzle to supply cleaning liquid; a high-pressure spray nozzle on one side of the filter layer; and a means for supplying cleaning liquid and air to the high-pressure spray nozzle. A backwashing means including a second supply pipe is provided, wherein the first supply pipe and the second supply pipe utilize the cleaning liquid of the cleaning liquid tank through a solenoid valve, and the second supply pipe is connected to a third supply pipe to receive high-pressure air from an air compressor.

Inventors

• 전수지
• 송현준
• 차현정
• 정성엽
• 서강현

Assignees

• 제이씨앤엠주식회사

Dates

Publication Date

20260507

Application Date

20241030

Claims (9)

1. A cleaning tower (10) that is cylindrical and consists of a bottom, middle and top; A gas inlet (100) located on one side of the bottom of the above-mentioned scrubbing tower through which gas is introduced; A gas outlet (200) on one side of the top of the above scrubbing tower through which gas introduced therein is discharged; A cleaning means (300) comprising a filter layer (310) and a cleaning liquid spray nozzle (320) for cleaning the gas introduced in a passage where the gas introduced through the gas inlet moves to be discharged through the gas outlet, located at the above-mentioned intermediate section; A mounting means (400) for mounting the filter layer on the other side, which is a wall facing one side of the cleaning tower wall where the above cleaning means is located; In order for the above filter layer to be installed in an inclined shape, the heights of the one side and the other side where the mounting means is installed are configured to be different, and It includes a cleaning liquid tank (500) located at the bottom of the cleaning tower for storing cleaning liquid supplied to the cleaning liquid spray nozzle, and a first supply pipe (510) connected to one side of the cleaning liquid spray nozzle to supply cleaning liquid. One side of the above filter layer includes a backwashing means (600) comprising a high-pressure spray nozzle (610) and a second supply pipe (620) for supplying cleaning liquid and air to the high-pressure spray nozzle. The first supply pipe and the second supply pipe use the cleaning liquid of the cleaning liquid tank through the solenoid valve (700), and The above second supply pipe is a cleaning tower connected to the third supply pipe (810) to receive high-pressure air from the air compressor (800).
2. In paragraph 1, A cleaning tower that, in accordance with the location where the above-mentioned filter layer is installed, includes a filter layer inlet (910) on one side for introducing the filter layer and a filter layer outlet (920) on the other side for discharging the filter layer.
3. In paragraph 1, A cleaning tower comprising a first plate located at the top, a second plate located at the bottom, and one or more side plates on the outer side of the above filter layer.
4. In paragraph 3, The above high-pressure spray nozzle is installed to spray downward on the first plate and upward on the second plate, forming a cleaning tower.
5. In paragraph 3, The above-mentioned side plate is a cleaning tower in which one side can be separated or opened/closed to facilitate the filling and discharge of filter media located inside.
6. In paragraph 1, The above filter layer is a scrubbing tower formed in one or more stages.
7. In paragraph 1, A cleaning tower comprising a support means having a trapezoidal shape on one side of the mounting means, wherein one side has a narrower diameter than the other side, and a collection bag installed on the support means so that discharged filter material is smoothly collected in the collection bag.
8. In paragraph 4, The high-pressure spray nozzles installed on the first plate and the second plate are a cleaning tower installed at a position opposite or intersecting.
9. In paragraph 1, The above filter layer is a scrubbing tower installed at an angle of inclination of 15 to 60 degrees relative to the bottom surface.

Description

Washing tower for flue gas treatment with reverse flushing capability including a filter bed in the form of an inclined plate The present invention relates to a backwashable flue gas treatment scrubbing tower including a filter layer in the form of an inclined plate, and more specifically, to a technology that prevents safety accidents that may occur to workers when the filter layer is contaminated or replaced, and facilitates cleaning by spraying a cleaning liquid and air at high pressure onto the filter layer in the form of an inclined plate. In modern industry, gas scrubbing devices such as scrubbers are widely used to remove harmful gases generated in various processes and prevent environmental pollution. These devices remove hazardous substances by bringing incoming gases into contact with a scrubbing solution and have established themselves as essential equipment for treating harmful gases produced in chemical processes, steel mills, and incineration facilities. Scrubbers must be designed to maximize the contact area between the gas and the scrubbing liquid; to achieve this, a filter layer is installed within the scrubbing tower to ensure effective contact between the gas and the scrubbing liquid. However, existing devices have the following problems. First, there are difficulties in contamination and replacement of the filter media layer. Existing filter media layers require cleaning or replacement at regular intervals because prolonged exposure to gas and cleaning solution leads to the accumulation of impurities or the occurrence of wear and corrosion. However, to replace the filter media layer, the scrubber must be shut down, and a worker must enter the scrubber to remove and replace the media. During this process, workers may be exposed to cleaning solution or hazardous gases, posing risks such as suffocation or burns, and the replacement work takes a significant amount of time due to the confined workspace. Second, there is a safety risk to workers. Since the filter layer replacement work is carried out inside the scrubber, there is a high possibility that workers will be exposed to hazardous substances. Because work must be performed in such an environment, there are problems such as an increased risk of safety accidents and reduced work efficiency. As a result, workers may be exposed to the risk of accidents, and the complex and lengthy work time also has a negative impact on productivity. Third, there is an inefficiency in cleaning the filter media. The existing cleaning method involves removing the filter media while the scrubber is shut down to clean or replace it externally. This method requires a significant amount of time and cost for the cleaning process and reduces the operational efficiency of the equipment. Furthermore, the use of a separate cleaning solution results in a waste of resources. Korean Registered Patent Publication No. 10-1250368 relates to a gas purification device that purifies gas contamination using granular filter media, comprising a cleaning tower (120) equipped with a gas inlet (60) and an outlet (61), Granular filter material that is filled inside the washing tower (120), is made of ceramic, and is molded or selected so that the particle size is within the range of 2.0 to 35 mm and the apparent specific gravity in a dry state is within the range of 1.03 to 2.75; granular filter material that has a particle size within the range of 2.0 to 35 mm and the apparent specific gravity in a dry state is within the range of 0.95 to 2.15 and is made of a mixture of synthetic resin and ceramic powder; granular filter material that has a particle size within the range of 2.0 to 35 mm and the apparent specific gravity in a dry state is within the range of 0.95 to 2.15 and is made by coating synthetic resin on ceramic; granular filter material that has a particle size within the range of 2.0 to 35 mm and the apparent specific gravity in a dry state is within the range of 0.85 to 1.8 and is made of a mixture of synthetic resin and animal or plant fibers, grass stems, sawdust, animal bones, or seashells; A gas purification device for purifying gas contamination using granular filter media is provided, comprising a filter media layer (100) formed by stacking one or more selected from a group of granular filter media having a particle size of 2.0 to 35 mm and an apparent specific gravity in a dry state within the range of 0.95 to 1.8 and composed of a mixture of synthetic resin and powdered activated carbon, and a liquid supply means (90) for maintaining the filter media layer (100) in a wet state, wherein in the filter media layer (100), gas introduced through the inlet (60) passes through the filter media layer (100), thereby enabling gas-liquid contact between the introduced gas and the liquid supplied by the liquid supply means (90), but the invention does not disclose the technical configuration for easy replacement of the filter media disclosed in the present invention. Korean