JP3132698U - Gas purifier - Google Patents

Abstract

A water bath type gas cleaning device is provided which can easily adjust the water level and operate easily.
A partition plate 4 is provided so as to hang down from the ceiling of a box-shaped hermetic container 2, thereby dividing the upper space in the container into a front chamber 6 and a rear chamber 8. The gas to be treated is guided to the front chamber side. Above the rear chamber 8, there is a processing gas outlet 14, from which a duct 18 extends through a dust collection screen 16, and the tip is connected to a suction fan 20. A water supply pipe 22 is led to the lower side wall of the inlet 10. An overflow tank 24 is attached to the outer surface of the opposite side wall, and the bottom of the tank and the container are connected by a pipe 26, so that excess water overflows from the overflow tank and the water level in the container 2 is maintained.
[Selection] Figure 1

Description

  The present invention relates to an apparatus for removing dust and bad odor contained in a gas.

In order to remove dust and bad odor contained in the gas, a water bath system has been conventionally used. This device creates water droplets by letting the gas to be treated submerge in the water, and makes the treatment gas contact with the water droplets to capture and purify dust and odor sources in the gas. . In this type of apparatus, it is necessary to keep the water level in the container constant. For example, in the apparatus of Patent Document 1, the height of the water level adjustment gate provided in the container is adjusted to maintain a constant water level. ing. However, such a structure has a problem that the gate is in the container and is difficult to adjust from the outside.
Utility model registration No. 3122545

  This invention makes it a subject to provide the water bath type | formula gas cleaning apparatus with a high cleaning effect and being easy to drive | operate.

  The gas cleaning device of the present invention includes a sealed container, a means for continuously supplying water into the container, an overflow tank outside the container and communicating with the container by a pipe, and a lower end immersed in water. A partition plate that is attached inside the container and divides the space above the water surface in the container into a front chamber and a rear chamber, and the gas to be purified is introduced from the front chamber under the partition plate into the rear chamber along with water droplets. And a screen provided at the outlet of the rear chamber for catching water droplets and dust.

  In this device, when the fan is started, the gas to be treated is introduced into the front chamber, passes through the lower edge of the partition plate immersed in water, reaches the rear chamber, and is released to the atmosphere through the suction fan. The When the gas gas passes through the water and exits to the rear chamber, the splash is rolled up, and the gas and water droplets come into contact with each other in the rear chamber, and the particles in the gas are trapped in the water.

  It is necessary to maintain the water level in the container so that the lower edge of the partition plate is immersed. In this device, the water level is adjusted by an overflow tank outside the container and communicating with the container. For this reason, the structure becomes simple and the water level can be easily adjusted.

  The overflow tank may be installed so that its height can be adjusted (Claim 2), or a part of the wall of the overflow tank that is slidable up and down is provided, and a water discharge port is provided in the slide part. (Claim 3).

  In order to prevent the water surface from undulating in the rear chamber and stabilize the water surface, a wave vane covering the water surface of the rear chamber can be provided.

  A bent portion having an arc-shaped cross section is formed along the lower edge of the partition plate, and a guide having an arc-shaped cross section is provided at a position slightly opposite to the arc-shaped bent portion. 5). By doing so, the guide attracts a large amount of water to the bent part, and the bent part can vigorously wind up the water toward the rear chamber.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, this apparatus includes a box-shaped sealed container 2, and a partition plate 4 is provided so as to hang down from the ceiling of the container, whereby the upper space in the container is divided into a front chamber 6 and a rear chamber 8. Divide. There is an inlet 10 in the side wall on the front chamber side, and the gas to be treated is guided to this inlet through a duct. Above the rear chamber 8, there is a processing gas outlet 14, from which a duct 18 extends through a dust collection screen 16, and the tip is connected to a suction fan 20. Reference numeral 32 denotes a viewing window made of a transparent material for viewing the inside of the rear chamber 8 from the outside.

  A water supply pipe 22 is led to the container wall below the inlet 10. An overflow tank 24 is attached to the outer surface of the opposite side wall, and the bottom of the tank and the container are connected by a pipe 26 so that excess water overflows from the overflow tank so that the water level in the container 2 is maintained. .

  In order to keep the water level in the container at a desired level, the installation height of the overflow tank is an important factor. Therefore, as shown in FIG. 1 and FIG. 3, angle members 28 extend downward on both sides of the tank 24, and several bolt holes 30 are opened at intervals between them. The bolt 34 is inserted and fixed to the support member 36 on the container side. Thus, by selecting the bolt hole 30 from among several, the mounting height of the tank 24 can be changed.

  Furthermore, the height of the drain outlet of the overflow tank can be changed. That is, a U-shaped cut 38 is provided on the wall of the tank 24, and a cover plate 40 provided with a drain port 42 is attached with a bolt 44 so as to cover the cut. The bolt hole 46 formed in the cover plate is formed into a long hole. Therefore, the cover plate (and hence the drain port 42) can be changed in the vertical position by the long diameter of the long hole, and the water level in the container 2 can be changed. Fine adjustment is possible. In order to prevent water leakage, when the cover plate 40 is attached, a rubber sheet 48 is applied as a packing inside thereof.

  A drain pipe 50 is attached to the drain port 42 of the cover plate, and the tip thereof is led to a sewage treatment tank (not shown).

  The partition plate 4 forms a bent portion 52 having an arcuate cross section along its lower edge. A guide 54 having an arc-shaped cross section is passed between the walls of the container at a position slightly opposite to the arc-shaped bent portion.

  This device is used to remove dust and bad odors from the exhaust from a livestock shed (eg a chicken manure storage shed in a poultry farm). Prior to the operation of the apparatus, water is supplied from the water supply pipe 22 into the container. The amount of water supply is about 40 to 100 liters per hour. The size of the container 2 is 1.0 m × 1.6 m in length and width and 1.6 m in height.

  When water supply is started, the container 2 and the overflow tank 24 are in communication with each other, so that the water levels of both containers rise while maintaining the same height. When the lower edge of the partition plate 4 is immersed in water, adjustment is made in advance so that the water overflows from the drain outlet 42 of the overflow tank. Therefore, the container 2 always maintains a water level such that only the lower edge of the partition plate is immersed in water.

  Next, when the suction fan 20 is started, the rear chamber 8 becomes negative pressure and the water surface rises, and the water surface of the front chamber 6 falls accordingly, and the treatment led from the chicken manure storage shed to the front chamber 6 through the duct 12. The gas passes under the partition plate 4 and is sucked into the rear chamber 8 while entraining water. As described above, the partition plate 4 is formed with a bent portion 52 having an arc-shaped cross section along the lower edge thereof. The bent portion 52 is shaped to face the arc-shaped bent portion and is slightly lower than the arc-shaped bent portion. A cross-section guide 54 is mounted between the walls of the container. Because of this structure, when the processing gas flows under the partition plate 4 and flows into the rear chamber 8, it is guided by the guide 54 and flows into the bent portion 52 while entraining a large amount of water. Then, it spouts out vigorously toward the rear chamber 8 from here. In addition, an iron plate wave-dissipating plate 56 is provided on the surface of the water so that the rear chamber does not wave more than necessary (FIG. 2).

  In the rear chamber 8, the water entrained and ejected from the processing gas is scattered as small and large water droplets, the processing gas comes into close contact with these water droplets, and the dust and fine particles contained in the processing gas become water droplets. Be captured. As for water droplets, large particles immediately fall into the water in the container, and small ones are captured by the screen when passing through the dust collecting screen 16, grow into large water droplets, and accumulate in the container. Falls into the water.

  In this way, the gas from which dust and odorous substances have been removed is sucked into the suction fan 20 and discharged to the outside. This reduces the foul odor of the poultry house.

  A part of the dust trapped in the water is discharged out of the overflow tank together with the water, but the rest settles on the bottom of the container 2. In order to remove this precipitate, the inside of the container is sometimes cleaned, for example, every two to three months, and the water is replaced.

It is a longitudinal cross-sectional view of a gas cleaning apparatus. It is a horizontal sectional view of a gas cleaner similarly. It is an assembly perspective view of an overflow tank.

Explanation of symbols

2 Container 4 Partition 6 Front chamber 8 Rear chamber 16 Screen 20 Fan 22 Water supply pipe 24 Overflow tank 52 Curved section 54 Guide 56 Wave extinguishing

Claims (5)

A sealed container;
Means for continuously supplying water into the container;
An overflow tank that is external to the container and is in fluid communication with the container to maintain the liquid level in the container at a desired level;
A partition plate attached in the container so that a lower end is immersed in water, and dividing a space on the water surface in the container into a front chamber and a rear chamber;
A fan that introduces a processing gas into the front chamber, further dives under the partition plate, introduces the water into the rear chamber together with water droplets, and discharges it to the outside of the container;
A gas cleaning device comprising a screen for catching water droplets and dust provided on the outlet side of the rear chamber.   The gas purifier according to claim 1, wherein the overflow tank is installed to be adjustable in height with respect to the container.   The gas purifier according to claim 1 or 2, wherein a part of the wall of the overflow tank is formed to be slidable up and down, and a water discharge port is provided in the slide part.   The gas purifier according to any one of claims 1 to 3, further comprising a wave-dissipating plate that covers the water surface in order to prevent the water surface from undulating in the rear chamber.   A curved portion having an arc-shaped cross section is formed along the lower edge of the partition plate so as to wind up the water accumulated in the container when the gas dives under the partition plate. The gas purifier according to any one of claims 1 to 4, wherein a guide having an arcuate cross section is provided at a position slightly opposite to the upper surface and at a slightly lower position.

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