JPH0949627A - Dust/toxic gas removing device for smoke - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively remove dust and toxic gas contained in smoke by making the smoke pass through a water film, and dust and toxic gas contained in the smoke is dissolved in the water film. SOLUTION: A water feeding pipe 2 is arranged in a chimney 1 along the chimney 1, and at the same time, a large number of nozzles 3 are provided on the water feeding pipe 2 in such a manner that water may be jetting in the directions of 360 deg. while being approx. orthogonal to the circulating direction of smoke, for a dust/toxic gas removing device for smoke.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smoke dust / toxic gas removing apparatus for dissolving and removing dust / toxic gas contained in smoke.

[0002]

2. Description of the Related Art Conventionally, various devices have been developed as a device for removing soot and toxic gas contained in smoke discharged from a chimney, but it is impossible to effectively remove soot and toxic gas. Even if it could be done, there was a problem that the device was complicated and expensive.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a water film is formed in a chimney by jetting water in a direction of 360 degrees which is substantially orthogonal to the flow direction of smoke, and the smoke film passes through this water film. It is an object of the present invention to provide a device for removing smoke dust and toxic gas, which dissolves dust and toxic gas contained in smoke in a water film and causes it to flow.

[0004]

In order to solve the above-mentioned problems, the present invention arranges a water supply pipe 2 along the inside of a chimney 1, and the water supply pipe 2 is disposed substantially in the direction of smoke flow. This is a device for removing smoke dust and toxic gas from smoke, which is characterized in that a large number of nozzles 3 are provided so as to spray water in a direction of 360 degrees orthogonally. In addition, a large number of nozzles 3 are provided so as to form a water film formed by ejecting water in a direction of 360 degrees, which is substantially orthogonal to the flow direction of smoke, in several layers in the vertical direction. This is a device for removing smoke dust and toxic gas. In addition, a fixed blade 5 for swirling smoke is provided at the lower end portion 4a, and a cone-shaped tubular body 4 forming a flue is formed in the wall surface 4b by piercing a plurality of small holes 4c through which water in which soot dust / toxic gas is melted. Many nozzles 3 that spout water in the direction of 360 degrees
Smoke dust characterized by being arranged so as to surround
It is a toxic gas removal device. Further, a water supply pipe 2 is arranged along the inside of the chimney 1, and a large number of nozzles 3 are provided in the water supply pipe 2 so that water is ejected in a direction of 360 degrees substantially orthogonal to the flow direction of smoke. A means for collecting and discharging water containing dissolved dust and toxic gas in several layers of water film formed by jetting water in the 360-degree direction is provided, and the toxic gas separated from the collected water is blower 6 A device for removing smoke dust and toxic gas from smoke, characterized in that it is provided with means for tangentially feeding from the outer circumference to the inner circumference of the chimney 1 at the lower part of the cone-shaped tubular body 4 forming a flue via It is a thing.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the smoke dust / toxic gas removing apparatus of the present invention will be described in detail below. FIG. 1 is a vertical sectional side view of the smoke dust / toxic gas removing device of the present invention provided in a chimney, FIG. 2 is a perspective view showing a main part of the present invention with a part of the chimney cut away, and FIG. FIG. 4 is a perspective view of a chimney equipped with a device for removing smoke dust and toxic gas of FIG. 4, FIG. 4 is a vertical cross-sectional side view of the main part of the present invention, FIG. 5 is an enlarged view of part X of FIG. 4, and FIG. 6 is smoke passing through a flue. Fig. 7 is a side view of a fixed blade for making the air flow into a swirl, Fig. 7 is a plan view of the fixed blade, and 1 is a chimney and 2
Is a water supply pipe arranged in the chimney, and 3 is a nozzle provided in the water supply pipe 2 so that water is jetted in a direction of 360 degrees substantially orthogonal to the flow direction of smoke.

As shown in detail in FIG. 5, the nozzles 3 have a main dust collecting upper stage nozzle group 3A and a main dust collecting lower stage nozzle group 3B.
The main dust collecting upper stage nozzle group 3A is divided into
A large number of nozzles 3a are provided on the inner water supply pipe 2b protruding from the closed tip of the outer water supply pipe 2a of the double water supply pipe 2 so as to eject water in a 360 degree direction at predetermined intervals. The dust collecting lower stage nozzle group 3B is provided with a large number of nozzles 3b so that water is jetted in a 360 degree direction at a predetermined interval on the outer water supply pipe 2a whose tip is closed.

A cone-shaped cylindrical body 4 forming a flue is arranged so as to surround the upper nozzle group 3A and the lower nozzle group 3B, and smoke is swirled at the lower end 4a of the cone-shaped cylindrical body 4. The fixed blades 5 are provided, and the wall surface 4b is provided with a plurality of small holes 4c through which water in which dust / toxic gas is melted passes. Further, a hood-shaped tubular body 7 having a lower end portion 7a joined to the inner surface of the chimney 1 is provided so as to surround the fixed blades 5 for swirling the smoke and collect the smoke in the fixed blades 5. A large number of nozzles 3c are provided at predetermined intervals on the outer water supply pipe 2a so as to be surrounded by the body 7 and to eject water in the direction of 360 degrees.
Is provided.

The outer periphery of the lower end of the cone-shaped tubular body 4 and the outer periphery of the upper end of the hood-shaped tubular body 7 are fixed to the inner periphery of the first donut-shaped partition plate 8 fixed to the inner periphery of the chimney 1. Above the first doughnut-shaped partition plate 8, one of the inner walls of the chimney 1
The cleaning nozzle 9 is provided, and the first drain port 10a connected to the discharge pipe 10 which is a means for collecting and discharging the water flowing to the first donut-shaped partition plate 8 is provided on the other inner wall of the chimney 1. Has been done.

A chimney 1 is provided above the cone-shaped cylinder 4.
A second cone-shaped cylindrical body 4 ′ is arranged so as to be fixed to the inner periphery of the second donut-shaped partition plate 11 fixed to the inner periphery of the chimney 1 above the second donut-shaped partition plate 11. The second cleaning nozzle 12 is provided on one of the inner walls of the second stack, and the second cleaning nozzle 12 is connected to the other of the inner walls of the chimney 1 to the discharge pipe 10 which is a means for collecting and discharging the water flowing to the second doughnut-shaped partition plate 11. The drainage port 10b is provided. A smoke outlet 1a is provided at the upper end of the chimney 1 above the second cone-shaped tubular body 4 '.

The chimney inlet 1b provided at the lower end of the chimney 1 has a third donut-shaped partition plate 13 fixed to the inner circumference of the lower end of the chimney 1.
The third cleaning nozzle 14 is fixed to the inner periphery of the chimney, and the third cleaning nozzle 14 is provided on one of the inner walls of the chimney 1 above the third donut-shaped partition plate 13, and the third donut-shaped partition plate is provided on the other inner wall of the chimney 1. A third drain port 10c is provided which is connected to a discharge pipe 10 which is a means for collecting and discharging the water that has flowed to 14.

A first smoke collecting hood 15 is disposed above the smoke inlet 1b so as to be supported by a supporting member 16 fixed to the inner wall of the chimney 1, and a second smoke collecting hood 15 is disposed above the first smoke collecting hood 15.
Of the second smoke collecting hood 17 is supported by a supporting member 18 fixed to the inner wall of the chimney 1.
An umbrella member 19 is disposed above and above the umbrella member 19 while being supported by a support member 20 fixed to the inner wall of the chimney 1, and a nozzle 21 for ejecting water is disposed above the umbrella member 19 below. The water ejected from the nozzle 21 cools the relatively high-temperature smoke that has entered the chimney 1 from the smoke inlet 1b.

The first, second, and third cleaning nozzles 9, 12, and 14, the outer water supply pipe 2a, and the inner water supply pipe 2b.
And a nozzle 2 for ejecting water downward
1 is connected to a main water supply pipe 22 arranged vertically along the outside of the chimney 1. Also, the first, second and third
The doughnut-shaped partition plates 8, 11, 13 of the first, second,
Water collected from the third cleaning nozzles 9, 12, 14 is collected to collect the first, second, and third drainage ports 10a, 10b, 1
As shown in FIGS. 1 and 3, the water discharged from 0c to the discharge pipe 10 is passed through a gas-liquid separation device 23 to be separated into water containing dust and toxic gas and water vapor containing toxic gas. The steam containing the toxic gas is passed through the mist separation device 24 to be separated into the toxic gas and the steam, and the separated toxic gas is passed through the blower 6 and the blower pipe 25 to the chimney 1 below the cone-shaped tube body 4. It is configured to be fed from an inlet 26 provided as a means for tangentially feeding from the outer circumference to the inner circumference. Reference numeral 27 is a frame body that supports the chimney 1.

The operation of the present invention configured as described above will be described. The smoke entering the chimney 1 from the smoke inlet 1b is the first smoke collecting hood 15, the second smoke collecting hood 17, and the umbrella member. While passing through 19, while being cooled by the water jetted downward from the nozzle 21 arranged above the umbrella member 19, the first and second smoke collecting hoods 15, 17 and the umbrella member 19 are also cooled. It Steam is generated during the cooling. The smoke containing the water vapor passes through a water film ejected in a 360 degree direction from the nozzle 3c provided in the outer water supply pipe 2a while passing through the hood-shaped cylindrical body 7 and is approximately orthogonal to the smoke flow direction. Soot and toxic gas contained in smoke containing water vapor are dissolved in the water film and removed to some extent.

Further, the smoke containing water vapor is vortexed by the fixed blades 5 provided at the connecting portion between the upper end of the hood-shaped cylindrical body 7 and the lower end of the cone-shaped cylindrical body 4 to make the cone-shaped cylindrical body. Pass 4. Main dust collecting lower stage nozzle group 3B provided on the outer water supply pipe 2a forming the water supply pipe 2 arranged on the central axis of the cone-shaped cylindrical body 4, and main dust collecting upper stage nozzle group 3A provided on the inner water supply pipe 2b. While the smoke containing water vapor passes through the water film of several layers ejecting in a direction of 360 degrees, which is almost orthogonal to the direction of smoke flow, the dust and toxic gas contained in the smoke containing water vapor becomes water. It dissolves in the film and is removed. The water in which the soot and toxic gas is dissolved flows into the first doughnut-shaped partition plate 8 through the small hole 4c formed in the wall surface 4b of the cone-shaped cylindrical body 4, and then through the first drain port 10a to the discharge pipe. Flows to 10.

Further, the smoke containing the steam from which the dust and toxic gas has been removed becomes a vortex flow and a vortex flow in the second cone-shaped cylindrical body 4 ′ provided above the cone-shaped cylindrical body 4. While passing, heavy water vapor still containing soot dust and toxic gas rises along the wall surface of the second cone-shaped cylindrical body 4 ′ and drops onto the second donut-shaped partition plate 11, The water is drained to the drain pipe 10 from the second drain port 10b.

The first, second and third drainage ports 10a, 1
The water containing the dust and toxic gas discharged from the exhaust pipes 0b and 10c to the discharge pipe 10 is separated by the gas-liquid separation device 23 into water vapor containing the toxic gas and water containing the dust and the toxic gas. The water vapor contained in the mist separation device 2
4 is separated into toxic gas and water vapor, and the separated toxic gas is tangentially provided from the outer periphery of the chimney 1 below the cone-shaped tubular body 4 to the inner periphery via the blower 6 and the blower pipe 25. Since it is sent from the inlet 26, smoke containing steam flowing from below the inlet 26 is made into a vortex, and the smoke containing steam is passed through the water film again to dissolve the toxic gas into the water. Let The first, second and third
From the cleaning nozzles 9, 12, 14 of
Alternatively, water is continuously ejected to wash away the soot dust on the first, second, and third donut-shaped partition plates 8, 11, and 13.

[0017]

As described above, according to the present invention, the water supply pipe is arranged along the inside of the chimney, and the water is jetted into the water supply pipe in a direction of 360 degrees substantially orthogonal to the flow direction of smoke. As described above, since the smoke dust / toxic gas removing device is provided with a large number of nozzles, the dust / toxic gas contained in the smoke can be dissolved in water and removed. Further, a large number of nozzles 3 are provided so as to form a water film formed by ejecting water in a direction of 360 degrees, which is substantially orthogonal to the smoke flow direction, in the vertical direction. Since it is a poison gas removing device, it is possible to effectively remove the dust and toxic gas contained in smoke by dissolving it in water. In addition, a fixed blade that swirls smoke is provided at the lower end, and a cone-shaped tubular body that forms a flue with a plurality of small holes through which water containing dissolved dust and toxic gas passes is formed on the wall surface in the direction of 360 degrees. Since it is a smoke soot and toxic gas removal device that is arranged so as to encircle a large number of nozzles that eject, the water in which the soot and toxic gas contained in the smoke is melted is drilled on the wall surface of the cone-shaped cylinder. The small holes can be effectively discharged to the outside of the cone-shaped cylindrical body. In addition, a water supply pipe is arranged along the inside of the chimney, and a large number of nozzles are provided in the water supply pipe so that water is jetted in a direction of 360 degrees substantially orthogonal to the flow direction of smoke. A means for collecting and discharging water containing soot dust and toxic gas dissolved in several layers of water film formed by ejecting water is provided, and the toxic gas separated from the collected water is sent to the flue through a blower. Since the smoke dust and toxic gas removal device is provided with a means for tangentially feeding from the outer circumference to the inner circumference of the chimney at the lower part of the cone-shaped tubular body that forms the toxic gas that is not yet dissolved in water, By passing through the water film, it is possible to effectively dissolve the toxic gas in water and prevent the toxic gas from being emitted.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view in which a smoke dust / toxic gas removing device of the present invention is provided in a chimney.

FIG. 2 is a perspective view showing a main part of the present invention by cutting out a part of a chimney.

FIG. 3 is a perspective view of a chimney provided with the smoke dust / toxic gas removing device of the present invention.

FIG. 4 is a vertical sectional side view of a main part of the present invention.

FIG. 5 is an enlarged view of a portion X in FIG. 4;

FIG. 6 is a side view of a stationary vane for swirling smoke through a flue.

FIG. 7 is a plan view of a fixed blade.

[Explanation of symbols] 1 chimney 1a smoke outlet 1b smoke inlet 2 water supply pipe 2a outer water supply pipe 2b inner water supply pipe 3 nozzle 3A main dust collection upper stage nozzle group 3a nozzle 3B main dust collection lower stage nozzle group 3b nozzle 3c nozzle 4 cone-shaped tube Body 4'Second cone-shaped cylindrical body 4a Lower end 4b Wall surface 4c Small hole 5 Fixed blade 6 Blower 7 Hood-shaped cylindrical body 7a Lower end 8 First donut-shaped partition plate 9 First cleaning nozzle 10 Discharge pipe 10a No. 1 drainage port 10b 2nd drainage port 10c 3rd drainage port 11 2nd donut-shaped partition plate 12 2nd cleaning nozzle 13 3rd donut-shaped partition plate 14 3rd cleaning nozzle 15 1st smoke collection Hood 16 Supporting member 17 Second smoke collecting hood 18 Supporting member 19 Umbrella member 20 Supporting member 21 Nozzle 22 Main water supply pipe 23 Gas-liquid separation device 4 mist separator 25 blower tube 26 inlet port 27 frame

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location E04H 12/28

Claims (4)

[Claims] 1. A water supply pipe (2) is arranged along a chimney (1), and a large number of nozzles (3) are jetted into the water supply pipe (2) in a direction of 360 degrees which is substantially orthogonal to the flow direction of smoke. Smoke dust and toxic gas removal device characterized by being equipped with. 2. 360 ° substantially perpendicular to the direction of smoke flow
2. The smoke dust / toxic gas removing device according to claim 1, wherein a large number of nozzles 3 are provided so as to form a water film formed by ejecting water in a vertical direction in several layers in the vertical direction. . 3. A cone-shaped cylindrical body forming a flue, in which a fixed blade 5 for swirling smoke is provided at a lower end portion 4a, and a plurality of small holes 4c through which water in which soot dust and toxic gas are melted are formed on a wall surface 4b. Four
2. The smoke dust / toxic gas removing device according to claim 1, wherein the nozzle is arranged so as to surround a large number of nozzles 3 from which water is ejected in a direction of 360 degrees. 4. A water supply pipe 2 is arranged along the inside of a chimney 1, and a large number of nozzles 3 are sprayed into the water supply pipe 2 in a direction of 360 degrees substantially orthogonal to the flow direction of smoke. And a means for collecting and discharging water containing dissolved dust and toxic gas in several layers of water film formed by ejecting water in the direction of 360 degrees, and removing toxic gas separated from the collected water. ,
A device for removing smoke dust and toxic gas from smoke, which is provided with a means for tangentially feeding from an outer circumference of a chimney 1 below a cone-shaped tubular body 4 forming a flue through a blower 6 to an inner circumference. .