JP2016209794A - Gas treatment equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide gas treatment equipment which enables a gas mixed with harmful substances to efficiently be treated with a relatively simple device.SOLUTION: A gas treatment device is provided in place of conventional gas treatment equipment, where the gas treatment device has a hollow conical inner tube getting shrunk in diameter downward to form an exhaust port at the bottom, a swirl flow formation means that is a disk-like member installed at the top end of the conical inner tube and has at least two gas swirl tray-like plates provided with a plurality of through-holes, and a jet means having a jet nozzle for jetting a compressed gas, which is fed to the top part of the conical inner tube along the top inner peripheral surface of the conical inner tube, in a direction along the swirling direction of the gas, thereby keeping at least two gas swirl tray-like plates vertically stacked with gaps from each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gas processing facility for processing gas. In particular, the present invention relates to a gas processing apparatus suitable for processing a gas containing impurities and harmful substances.

  In general, in a gas, in addition to harmful substances existing in a gaseous state or molecular level such as NOx, dioxins, and radioactive substances, substances existing in a solid state such as dust are mixed.

  Conventionally, a cyclone employing a centrifugal force method, a bag filter employing a filtration method, and the like are known for removing finely divided solids and radioactive substances in exhaust gas. These are all separated and collected only in the form of pulverized solids in exhaust gas, and it is impossible to remove gaseous air pollutants and radioactive materials, most of which are released into the atmosphere. ing.

  Therefore, in order to remove the gaseous air pollutants and radioactive substances, a chemical facility using an aqueous solution that absorbs the air pollutants and radioactive substances is required separately. In addition to the reaction tank that reacts gaseous air pollutants, radioactive substances and aqueous solutions, this chemical equipment includes equipment that circulates aqueous solutions in equipment, equipment that supplies new aqueous solutions, and equipment that treats aqueous solutions. Is provided.

  Therefore, in order to treat harmful substances that exist in the solid state, air pollutants that exist in the gaseous state, and gas mixed with radioactive substances, conventionally, a device that combines a dust collector such as a cyclone and chemical equipment, Commonly used.

  However, in such a gas processing apparatus, the chemical equipment becomes very large, the manufacturing cost of the apparatus increases, and the supply and processing of the aqueous solution must be performed, which increases the running cost. For this reason, in industries where a large amount of exhaust gas is generated in the manufacturing process of products, such as the chemical industry and the steel industry, it is highly desirable to be able to remove gaseous air pollutants without using chemical equipment. ing.

  Therefore, as a response to such a demand, there is a gas processing device described in International Publication WO 92/02292 filed by the applicant of the present application.

  This gas processing apparatus has a conical inner cylinder that is reduced in diameter as it goes downward, and an ejection nozzle that ejects compressed gas along the upper inner peripheral surface of the conical inner cylinder. An upper opening for sucking exhaust gas is formed in the upper part of the cylinder, and a discharge port is formed in the lower part of the conical inner cylinder.

  In this exhaust gas treatment apparatus, the mechanism for treating the exhaust gas in which the pollutant present in the solid state and the air pollutant present in the gas state are mixed is as follows.

  The pressure in the conical inner cylinder increases due to the inflow of compressed gas, and the temperature decreases due to adiabatic expansion of the compressed gas. For this reason, a part of the gaseous pollutants in the exhaust gas flowing into the conical inner cylinder changes into a liquid due to an increase in pressure and a decrease in temperature. The air pollutant that has become a liquid collides with a finely divided solid pollutant in the vortex flow in the conical inner cylinder and is adsorbed thereto. This finely divided solid is removed by the action of centrifugal force. That is, the gaseous pollutant is removed from the exhaust gas together with the finely divided solid in the form of being adsorbed by the finely divided solid and discharged from the outlet.

  The exhaust gas treatment apparatus described in the above-mentioned International Publication WO 92/02292 is a relatively simple facility, and an exhaust gas in which a pollutant present in a solid state and an air pollutant present in a gaseous state coexist. It can be said that the production cost and the running cost are not high and it is very excellent.

  However, in recent years when pollution problems are a problem, it is always desired to treat exhaust gas more efficiently.

In recent years, radioactive materials have leaked into the environment due to accidents at nuclear power plants.
It is desired to more efficiently treat radioactive material from a gas containing radioactive material.
In particular, there is an increasing social demand for separating harmful substances such as radioactive substances from gas.

  Therefore, in order to meet such a demand, the present invention efficiently uses a relatively simple device to efficiently mix a gas containing a harmful substance existing in a solid state and a harmful substance existing in a gaseous state or a molecular level. It aims at providing the gas processing equipment which can be processed.

  In order to achieve the above object, a gas processing facility for processing a gas according to the present invention is provided with a gas processing device, and the gas processing device is reduced in diameter as it goes downward, and a discharge port is formed in a lower portion. A hollow conical inner cylinder, and a swirl flow forming means having a gas swirling dish-shaped plate, which is a disk-like member installed at the upper end of the conical inner cylinder and in which a plurality of through holes are formed; Injection means having an ejection nozzle that ejects compressed gas in a direction along the direction of swirling the gas that has been fed into the upper portion of the conical inner cylinder and along the upper inner peripheral surface of the conical inner cylinder. It was supposed to be.

According to the configuration of the present invention, the gas processing apparatus includes a conical inner cylinder, a swirl flow forming unit, and an injection unit. The conical inner cylinder is a hollow one that is reduced in diameter as it goes downward and a discharge port is formed in the lower part. The swirling plate-like plate of the swirling flow forming means is a disk-like member installed at the upper end of the conical inner cylinder, and has a plurality of through holes. The injection nozzle of the injection means injects the compressed gas in a direction along the upper inner peripheral surface of the conical inner cylinder and along the direction in which the gas fed to the upper portion of the conical inner cylinder is swirled.
As a result, the liquid or solid substance in the gas can be solidified while swirling on the inner wall of the conical inner cylinder and discharged from the discharge port at the lower end, and the gas flow is not disturbed even if back pressure is generated at the discharge port.

  Below, the gas treatment equipment concerning the embodiment of the present invention is explained. The present invention includes any of the embodiments described below, or a combination of two or more of them.

In the gas processing facility according to the embodiment of the present invention, the swirl flow forming means has at least two gas swirl dish plates, and the at least two gas swirl dish plates overlap each other with a gap therebetween.
With the configuration of the embodiment according to the present invention, the swirl flow forming means has at least two gas swirl dish plates. At least two gas swirl plates overlap each other with a gap therebetween.
As a result, the liquid or solid substance in the gas can be solidified while swirling on the inner wall of the conical inner cylinder and discharged from the discharge port at the lower end, and the gas flow is not disturbed even if back pressure is generated at the discharge port.

In the gas processing facility according to the embodiment of the present invention, the first injection nozzle which is the injection nozzle of the injection means injects the compressed gas into the gap sandwiched between at least two gas swirling dish-like plates.
With the configuration of the embodiment according to the present invention, the first injection nozzle of the injection unit jets the compressed gas into the gap sandwiched between at least two gas swirling dish-like plates.
As a result, the gas that has entered the gap between the two gas swirling dishes is swirled along the conical inner cylinder.

In the gas processing facility according to the embodiment of the present invention, the second injection nozzle that is the injection nozzle of the injection means injects the compressed gas into the space under the at least two gas swirling plate-like plates.
With the configuration of the embodiment according to the present invention, the second injection nozzle of the injection unit jets the compressed gas into the space under the at least two gas swirling dish-like plates.
As a result, the gas that has passed through the at least two gas swirling dishes is swirled along the conical inner cylinder.

Further, in the gas treatment facility according to the embodiment of the present invention, the exhaust gas treatment device is configured to block a flow of the fine powder discharge pipe, which is a pipe and one end portion of which communicates with the discharge port, and the flow of the fine powder discharge pipe. A fine powder discharge tube disk-shaped member provided with a plurality of through holes.
With the configuration of the embodiment according to the present invention, the exhaust gas treatment apparatus includes a fine powder discharge pipe and a fine powder discharge pipe disk-shaped member. The fine powder discharge pipe is a pipe, and one end thereof communicates with the discharge port. The fine powder discharge pipe disk-shaped member is a disk-shaped member provided so as to block the flow of the fine powder discharge pipe, and is formed with a plurality of through holes.
As a result, even if a back pressure is generated at the lower end of the fine powder discharge pipe, the turbulence of the gas flow at the discharge port can be suppressed.

A gas processing facility according to an embodiment of the present invention includes a bag filter type processing device, and the bag filter type processing device has a casing, and a partition plate opening that is a partition opening into the suction chamber and the exhaust chamber. And a filter cloth that is in the form of a bag having an opening and communicates the opening with the opening of the partition plate, and the fine powder discharge pipe penetrates the casing from above and has the other end thereof. Located inside the suction chamber.
With the configuration of the embodiment according to the present invention, the bag filter processing apparatus includes a casing, a partition plate, and a filter cloth. A partition plate partitions the casing into a suction chamber and an exhaust chamber, and a partition plate opening that is an opening is provided. The filter cloth has a bag shape with an opening, and the opening communicates with the partition plate opening. The fine powder discharge pipe penetrates the casing from above, and the other end is located inside the suction chamber.
As a result, fine powder in the gas treated by the exhaust gas treatment device can be filtered with a filter cloth.

Further, in the gas processing facility according to the embodiment of the present invention, the bag filter processing device is a plate-like member provided in the opening of the filter cloth, and a plurality of through holes are formed in the filter cloth opening disk shape. And a member.
With the configuration of the embodiment according to the present invention, the filter cloth opening disk-shaped member of the bag filter processing apparatus is a disk-shaped member provided in the opening of the filter cloth, and a plurality of through holes are formed. .
As a result, even if a back pressure is generated in the exhaust chamber, the turbulence of the gas flow in the suction chamber can be suppressed.

Moreover, the gas processing equipment which concerns on embodiment of this invention has the high frequency voltage application means in which the said bag filter processing apparatus applies a high frequency voltage to the inner side of the said filter cloth, and the outer side of the filter cloth.
With the configuration of the embodiment according to the present invention, the high-frequency voltage applying means of the bag filter processing apparatus applies a high-frequency voltage to the inside of the filter cloth and the outside of the filter cloth.
As a result, even if the gas flow is disturbed in the suction chamber, the backflow of fine powder can be suppressed.

As described above, the gas processing facility according to the present invention has the following effects due to its configuration.
The gas swirl dish plate, which is a disk-shaped member with a plurality of through-holes, is installed at the upper end of a conical inner cylinder whose diameter is reduced toward the bottom and a discharge port is formed in the lower part. The compressed gas is ejected in a direction along the direction of swirling the gas that has been fed into the upper inner peripheral surface of the inner cylinder and the upper part of the conical inner cylinder. The substance can be solidified while swirling on the inner wall of the conical inner cylinder and discharged from the discharge port at the lower end, and even if back pressure is generated at the discharge port, disturbance of gas flow in the conical inner cylinder can be suppressed.
In addition, two gas swirling dish-shaped plates, which are disk-shaped members in which a plurality of through-holes are formed, are arranged at the upper end of a conical inner cylinder whose diameter is reduced as it goes downward and a discharge port is formed in the lower part. Therefore, the liquid or solid substance in the gas can be solidified while swirling on the inner wall of the conical inner cylinder and discharged from the discharge port at the lower end, and the gas flow is not disturbed even if back pressure is generated at the discharge port.
In addition, since the first injection nozzle jets the compressed gas into the gap sandwiched between at least two gas swirl dish plates, the gas in the gap sandwiched between the two gas swirl dish plates is conical. Turn along the inner cylinder.
Further, since the second injection nozzle jets the compressed gas into the space below the at least two gas swirling dish-shaped plates, the gas that has passed through the at least two gas swirling dish-shaped plates flows along the conical inner cylinder. And turn.
In addition, since the fine powder discharge pipe disk-shaped member in which a plurality of through holes are formed is provided so as to block the flow of the fine powder discharge pipe communicating with the discharge port at the upper end, the fine powder discharge pipe Even if back pressure is generated at the lower end, it is possible to suppress the disturbance of the gas flow at the outlet.
The fine powder discharge pipe penetrates the casing from above, the other end is located inside the suction chamber, and the opening of the bag-like filter cloth communicates with the partition plate opening that partitions the suction chamber and the exhaust chamber. Since it was made to do it, the fine powder in the gas processed with the exhaust gas processing apparatus can be filtered with a filter cloth.
In addition, since a disk-like member in which a plurality of through holes are formed is provided at the opening of the filter cloth, it is possible to suppress disturbance of gas flow in the suction chamber even if back pressure is generated in the exhaust chamber. .
Further, since the high frequency voltage is applied to the inside of the filter cloth and the outside of the filter cloth, the backflow of fine powder can be suppressed even if the gas flow is disturbed in the suction chamber.
As a result, it is possible to provide a gas processing facility capable of efficiently processing.

It is a perspective view of the gas treatment equipment concerning a first embodiment of the present invention. It is front sectional drawing of the gas processing equipment which concerns on 1st embodiment of this invention. It is a perspective view of the gas turning cylinder which concerns on 1st embodiment of this invention. It is AA sectional drawing of the gas turning cylinder which concerns on 1st embodiment of this invention. It is a top view of the gas swirl plate according to the first embodiment of the present invention. It is a BB sectional view of the gas treatment equipment concerning a first embodiment of the present invention. It is CC sectional drawing of the gas processing equipment which concerns on 1st embodiment of this invention. It is front sectional drawing of the bag filter which concerns on 1st embodiment of this invention. FIG. 3 is a DD arrow view of the bag filter according to the first embodiment of the present invention. It is a top view of the gas swirl plate according to the first embodiment of the present invention. It is a perspective view of the gas treatment equipment concerning a second embodiment of the present invention. It is front sectional drawing of the gas processing apparatus which concerns on 2nd embodiment of this invention. It is a perspective view of the screen filter processing apparatus which concerns on 2nd embodiment of this invention. It is EE sectional drawing of the gas processing apparatus which concerns on 2nd embodiment of this invention. It is FF sectional drawing of the gas processing apparatus which concerns on 2nd embodiment of this invention. It is a perspective view of the gas treatment apparatus concerning a third embodiment of the present invention. It is front sectional drawing of the gas treatment apparatus which concerns on 4th embodiment of this invention.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

First, a gas processing facility according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a gas processing facility according to an embodiment of the present invention. FIG. 2 is a front sectional view of the gas processing facility according to the embodiment of the present invention. FIG. 3 is a perspective view of the gas swirl tube according to the embodiment of the present invention. FIG. 4 is a cross-sectional view taken along line AA of the gas swirl tube according to the embodiment of the present invention. FIG. 5 is a plan view of the gas swirl dish according to the embodiment of the present invention. FIG. 6 is a BB cross-sectional view of the gas processing facility according to the embodiment of the present invention. FIG. 7 is a CC cross-sectional view of the gas processing facility according to the embodiment of the present invention. FIG. 8 is a front sectional view of the bag filter according to the embodiment of the present invention. FIG. 9 is a DD arrow view of the bag filter according to the embodiment of the present invention. FIG. 10 is a plan view of the gas swirl dish plate according to the first embodiment of the present invention.

The gas processing facility in this embodiment is an apparatus for processing gas. The gas may be in a hot gas exhausted from the boiler. The gas contains substances present in a solid state such as dust, in addition to air pollutants such as dioxins, NOx and SOx present in a gaseous state.
The gas may contain a radioactive substance. The gas may be a gas exhausted by incineration of a radioactively contaminated substance.
The gas may be processed by a cyclone processing apparatus as a pretreatment.

The gas processing facility in this embodiment may be composed of a cooler that is a cooling unit that cools the gas, and a gas processing facility that processes the gas cooled by the cooler.
The gas processing facility may be composed of the gas processing device 10 and the bag filter type processing device 80.

The gas processing apparatus 10 may include a compressed gas supply means 4, a gas swirl cylinder 16, a conical inner cylinder 11, a swirl flow forming means, an injection means, a cooling means, a compressed air distribution means, and a casing 28.
The gas processing apparatus 10 includes a compressed gas supply means 4, a gas swirl cylinder 16, a conical inner cylinder 11, a swirl flow forming means, an injection means, a cooling means, a compressed air distribution means, a casing 28, and a fine powder discharge pipe 59. May be.
The gas processing apparatus 10 includes a compressed gas supply means 4, a gas swirl cylinder 16, a conical inner cylinder 11, a swirl flow forming means, an injection means, a cooling means, a compressed air distribution means, a casing 28, a fine powder discharge pipe 59, and a fine powder discharge pipe. The disc-shaped member 95 may be used.

The compressed gas supply means 4 is means for supplying compressed gas to the injection means via the compressed air distribution means.
The compressed gas supply means may be the compressor 4.
For example, the compressor 4 supplies compressed air to the plurality of ejection nozzles 19, 19.

The gas revolving cylinder 16 is a member that revolves gas and guides it to the upper part of the conical inner cylinder 11.
For example, the gas revolving cylinder 16 has a hollow cylindrical shape, and its lower end surface is open.
A plurality of rectangular openings 17, 17,... For taking gas into the hollow cylinder are formed on the side periphery of the gas swirl cylinder 16.
A swirl vane 18 that swirls the gas flowing into the hollow cylinder from the opening 17 around the central axis C of the conical inner cylinder 11 in one of the clockwise direction and the counterclockwise direction as viewed from above is provided in each opening 17. , 17,... The gas swirl cylinder 16 is provided directly above the gas swirl dish 13 described later.
3 and 4, swirl vanes 18 that are swung clockwise around the central axis C of the conical inner cylinder 11 are attached to the edges of the openings 17, 17,... An example of the structure of the gas revolving cylinder 16 is shown.

The conical inner cylinder 11 is a hollow member that is reduced in diameter as it goes downward and has a discharge port 12 formed in the lower part.
In other words, the inner surface of the conical inner cylinder 11 can assume the outline of a truncated cone with the bottom up.
For example, the conical inner cylinder 11 is provided with an upper opening which is an opening at a position corresponding to the bottom surface of the conical contour base at the upper end, and a lower portion which is an opening at a position corresponding to the apex of the contour of the truncated cone at the lower end. An opening is provided, and this lower opening forms a discharge port 12.
A fine powder discharge pipe 59 extending to the lower part of the side surface of the bag filter type processing apparatus 80 may be connected to the discharge port 12. A gas swirling dish-like plate 13 to be described later is provided in the upper opening of the conical inner cylinder 11.

The swirl flow forming means is means for generating a swirl flow that flows from top to bottom inside the conical inner cylinder 11.
The swirl flow forming means may have a gas swirl plate 13.
The swirling flow forming means may have at least two gas swirling dish-like plates 13 and have a structure in which at least two gas swirling dish-like plates 13a and 13b overlap each other with a gap therebetween.
A plurality of gas swirling plate-like plates 13a, 13b,... May overlap each other with a gap therebetween.
The swirl flow forming means may have a plurality of gas swirl dish plates 13 and a plurality of gas swirl dish plates 13a, 13b,...
The two gas swirling plate-like plates 13a and 13b may be configured such that through holes described later are not overlapped as much as possible when viewed from above.
The plurality of gas swirling plate-like plates 13a, 13b,... May be configured not to overlap as much as possible through holes, which will be described later, when viewed from above.
FIG. 10 shows two gas swirl dish plates 13a and 13b that are configured so that a majority of through holes, which will be described later, do not overlap when viewed from above.

The gas swirl plate 13 is a disk-like member installed at the upper end of the conical inner cylinder 11 and has a plurality of through holes.
The gas swirling dish-shaped plate 13 is a disk-shaped member installed at the upper end of the conical inner cylinder 11 and has a dish shape that gradually protrudes downward as it approaches the central axis of the conical inner cylinder. A plurality of through holes may be formed.
The gas swirl plate 13 is a disk-shaped member installed at the upper end of the conical inner cylinder 11, and has a plurality of through holes penetrating from its upper surface to its lower surface in the gas swirling direction. It may be formed.
The gas swirling dish-shaped plate 13 is a disk-shaped member installed at the upper end of the conical inner cylinder 11 and has a dish shape that gradually protrudes downward as it approaches the central axis of the conical inner cylinder 11. And the some through-hole penetrated from the upper surface to the lower surface toward the direction which turns gas may be formed.

For example, the gas swirling dish-shaped plate 13 has a plurality of through holes 14, 14...
For example, the through holes 14, 14... Are formed on a line segment drawn in a spiral shape with the central axis C of the conical inner cylinder 11 as the center.
For example, the through hole 14 is slanted from the upper surface to the lower surface of the gas swirling dish 13 so that the gas passing through it has a clockwise swirling flow when viewed from above, and the central axis of the conical inner cylinder 11 It penetrates clockwise around C.
In FIG. 5, the through-holes 14, 14... Are formed on a line segment drawn in a spiral shape with the central axis C of the conical inner cylinder 11 as the center, and the gas passing through the through-holes 14, 14. A state in which the gas swirl dish 13 is penetrated in a clockwise direction when viewed from above with the center axis C of the conical inner cylinder 11 as a center so that a swirl flow in the rotation direction is obtained. Show.

The injection means is means for injecting gas into the conical inner cylinder 11 in order to generate a swirling flow of gas inside the conical inner cylinder 11.
The spraying unit may be composed of the spray nozzle 19.
The spray unit may be composed of a plurality of spray nozzles 19.
The injection means may be composed of a plurality of first injection nozzles 19a and a plurality of second injection nozzles 19b.
The injection means may be composed of a plurality of first injection nozzles 19a, a plurality of second injection nozzles 19b, and a plurality of Nth injection nozzles 19n.
The injection nozzle 19 is a nozzle that ejects compressed gas in a direction along the direction in which the gas fed along the upper inner peripheral surface of the conical inner cylinder and the gas fed into the upper portion of the conical inner cylinder is swirled.
For example, at the tip of each of the ejection nozzles 19a and 19b, the compressed air injected from the tip is along the upper inner peripheral surface of the conical inner cylinder 11, and the center axis C of the conical inner cylinder 11 is the center. It is bent so as to turn in one of a clockwise direction and a counterclockwise direction as viewed from above.
In FIG. 6, the tip of each of the ejection nozzles 19 a and 19 b is arranged such that the compressed air injected from the tip is along the upper inner peripheral surface of the conical inner cylinder 11, and the central axis C of the conical inner cylinder 11 is set. It shows a state of being bent so as to turn clockwise as viewed from above.
In FIG. 6, the gas swirling plate 13 is omitted in order to facilitate understanding of the jet direction of the compressed air in the conical inner cylinder 11.

  The first injection nozzle 19a, which is an injection nozzle of the injection means, may jet the compressed gas into a gap sandwiched between at least two gas swirling plate-like plates 13a and 13b.

  The 2nd injection nozzle 19b which is an injection nozzle of an injection means may inject a compressed gas into the space under the at least 2 gas swirl plate 13a, 13b.

  The first injection nozzle 19a which is an injection nozzle of the injection means injects compressed gas into a gap sandwiched between at least two gas swirling dish plates, and the second injection nozzle 19b which is an injection nozzle of the injection means has at least 2 The compressed gas may be ejected into the space under the two gas swirling plates.

The cooling means is means for cooling the gas flowing through the conical inner cylinder 11.
The cooling means may have a cooling jacket 20.
The cooling jacket 20 covers the outer circumferential surface of the conical inner cylinder 11, and cooling water is supplied between the outer circumferential surface.
For example, the cooling jacket 20 has a cooling water supply pipe 21a connected to the lower part thereof, and a cooling water drain pipe 21b connected to the upper part thereof. The cooling water supply pipe 21a and the cooling water drain pipe 21b are provided with flow rate adjusting valves 22a and 22b for adjusting the flow rate of the cooling water flowing therethrough and thermometers 23a and 23b for measuring the temperature of the cooling water, respectively. It has been.
FIG. 2 shows a state in which the cooling jacket 20 has a cooling water supply pipe 21a connected to its lower part and a cooling water drain pipe 21b connected to its upper part.
Further, the cooling water supply pipe 21a and the cooling water drain pipe 21b are respectively provided with flow rate adjusting valves 22a and 22b for adjusting the flow rate of the cooling water flowing therein, and thermometers 23a and 23b for measuring the temperature of the cooling water. Is provided.

The casing 28 is a member that covers the conical inner cylinder 11 and the gas revolving cylinder 16.
The casing 28 includes an outer cylinder 25, an outer cylinder upper lid 26a, and an outer cylinder bottom lid 26c.
The outer cylinder 25 may cover the outer periphery of the conical inner cylinder 11 and the gas swirl cylinder 16 to which the cooling jacket 20 is attached.
A mantle upper lid 26 a closes the upper portion of the outer cylinder 25. The mantle upper cover 26 a closes the upper opening of the outer cylinder 25.
An intake port 29 a is formed in the outer cylinder 25.
For example, the gas duct 5 extending from the boiler is connected to the intake port 29a via a cooler and a blower fan.
The outer cylinder bottom lid 26c closes the lower part of the outer cylinder 25.
The fine powder discharge pipe 59 penetrates the outer cylinder bottom part 26c.
FIG. 2 shows a state in which the outer cylinder 15, the outer cylinder upper lid 26 a and the outer cylinder bottom lid 26 b cover the periphery of the conical inner cylinder 11 and the gas turning cylinder 16 to which the cooling jacket 20 is attached.

The compressed air distributing means is means for distributing the compressed gas to the plurality of ejection nozzles 19.
The compressed air distribution means may distribute the compressed air from the compressor to the plurality of ejection nozzles 19.
The compressed air distributor is composed of a compressed air distributor 27.
The compressed air distributing means may be composed of at least two compressed air distributors 27, a first compressed air distributor 27a and a second compressed air distributor 27b.
For example, the compressed air distributor 27 is provided around the outer cylinder 25.
A compressed air supply pipe 58 extending from the compressor is connected to the compressed air distributor.
For example, the compressed air distributor 27 is provided with seven ejection nozzles 19, 19,. The tip of the ejection nozzle 19 is clockwise when the compressed air injected from the tip is along the upper inner peripheral surface of the conical inner cylinder 11 and viewed from above around the central axis C of the conical inner cylinder 11. It is bent to turn in the direction.
For example, two compressed air distributors 27a and 27b are provided with seven first jet nozzles 19a, 19a,... And seven second jet nozzles 19b, 19b,. .

The fine powder discharge pipe 59 is a pipe for guiding a gas containing fine powder discharged from the discharge port 12 of the conical inner cylinder 11 to a bag filter type processing device 80 described later.
The fine powder discharge pipe 59 is a pipe having one end communicating with the discharge port and the other end opened to the suction chamber 82 of the bag filter type processing apparatus 80.
For example, the fine powder discharge pipe 59 is a pipe that extends vertically, communicates the upper end with the discharge port, and opens the lower end to the suction chamber 82 of the bag filter type processing apparatus 80.

The fine powder discharge pipe disk-shaped member 95 is a disk-shaped member provided so as to block the flow of the fine powder discharge pipe 59 and is formed with a plurality of through holes.
The fine powder discharge pipe disk-shaped member 95 is a disk-shaped member provided so as to block the flow at the lower end of the fine powder discharge pipe 59, and a plurality of through holes may be formed.
The fine powder discharge pipe disk-shaped member 95 is a disk-shaped member provided so as to block the flow in the middle of the fine powder discharge pipe 59, and a plurality of through holes may be formed.
For example, the fine powder discharge pipe disk-like member 95 forms a dish shape that gradually protrudes upward as it approaches the central axis of the fine powder discharge pipe 59, and has a plurality of through holes.
For example, the fine powder discharge pipe disk-shaped member 95 forms a dish shape that gradually protrudes upward as it approaches the central axis of the fine powder discharge pipe 59, and is one of the clockwise or counterclockwise directions when viewed from below. A plurality of through holes penetrating from the lower surface to the upper surface are formed.
For example, the fine powder discharge pipe disk-shaped member 95 forms a dish shape that gradually protrudes upward as it approaches the central axis of the fine powder discharge pipe 59, and when viewed from below, the bottom face thereof from the lower face toward the clockwise direction. A plurality of through holes penetrating through are formed.

The bag filter type processing device 80 includes filter cloths 81, 81,..., A screw 89, a casing 85, and a backwash device 90.
The bag filter type processing apparatus 80 may be composed of filter cloths 81, 81,..., A screw 89, a casing 85, a backwashing apparatus 90, and a filter cloth support 81a.
The bag filter type processing device 80 may be configured by filter cloths 81, 81,..., A screw 89, a casing 85, a backwash device 90, and a filter cloth opening disk member 96.
The bag filter type processing device 80 may include filter cloths 81, 81,..., A screw 89, a casing 85, a backwash device 90, and a high-frequency voltage applying unit 97.
The bag filter type processing apparatus 80 may be configured by filter cloths 81, 81,..., A screw 89, a casing 85, a backwash device 90, and a partition plate 84.
The bag filter processing device 80 includes filter cloths 81, 81,..., Screws 89, a casing 85, a backwash device 90, a filter cloth support 81a, a filter cloth opening disk member 96, and a high-frequency voltage applying means 97. You may be comprised with the partition plate 84. FIG.

The filter cloth 81 has a bag shape with an opening, and communicates the opening with a partition plate opening to be described later.
For example, the filter cloth 81 has a cylindrical shape, an upper portion is open, and a bottom portion is provided at the bottom. The filter cloth 81 communicates with the partition plate opening provided at the partition plate 87 at the upper opening edge of the filter cloth 81.

The filter cloth support 81 a is a structure that supports the filter cloth 81.
For example, the filter cloth support 81a is a structure having a cylindrical outline, and has a flange at one end.
A structure having a cylindrical outline supports the filter cloth 81 from the inside.

The casing 85 is a member that forms a space that combines the suction chamber 82 and the exhaust chamber 83.
The partition plate 84 is a plate member that partitions the casing 85 into a suction chamber 82 and an exhaust chamber 83 and is provided with a partition plate opening that is an opening.
For example, the casing 85 has a quadrangular cylindrical shape at the top and a quadrangular pyramid at the bottom. The inside of the quadrangular pyramidal portion of the casing 85 is partitioned up and down by the partition plate 87 described above, and the lower side forms a suction chamber 82 and the upper side forms an exhaust chamber 83.
An exhaust port 88 is formed in the side wall of the casing 85 that forms the exhaust chamber 83. In the suction chamber 82, a plurality of filter cloths 81, 81,... Supported by a partition plate 84 are arranged.
A lower end opening 59 a of the fine powder discharge pipe 59 extending from the gas processing apparatus 10 is located inside the suction chamber 82.

The screw 89 is a mechanical element that sends a finely divided solid in a gas in a target direction.
A screw 89 is provided in the lower part of the quadrangular pyramid portion of the casing 85.
A fine powder discharge port 86 is formed on the wall surface forming the casing 85 below the screw 89.
For example, the screw 89 mixes the fine powdered solid in the gas and the liquid in the gas, and discharges them as a unit from the fine powder discharge port 86 to the outside of the system.

The backwash device 90 is a device for eliminating clogging of the filter cloth 81.
For example, the backwash device 90 includes a header 91 and backwash pipes 92, 92,.
The header 91 is a container in which compressed air is temporarily stored.
The backwash pipes 92, 92,... Are pipes that guide the compressed air in the header 91 into the filter cloths 81, 81,.
When the backwash device 90 is operated, the back pressure acts on the filter cloth 81, and the clogging of the filter cloth 81 is eliminated.

The filter cloth opening disk-shaped member 96 is a disk-shaped plate material provided in the opening of the filter cloth 81, and is a member provided with a plurality of through holes.
A backwash pipe 92 of the backwash device 90 passes through the filter cloth opening disk-like member 96.
The backwash pipe 92 of the backwash device 90 may pass through the center of the filter cloth opening disk member 96.
For example, the filter cloth opening disk-like member 96 is formed with a plurality of through holes, and the backwash pipe 92 of the backwash device 90 passes through the center.
For example, the filter cloth opening disk-shaped member 96 has a dish shape that gradually protrudes downward as it approaches the central axis of the opening of the filter cloth 81, and has a plurality of through holes formed at the center. The backwash pipe 92 of the washing device 90 penetrates.
For example, the fine powder discharge pipe disk-shaped member 96 has a dish shape that gradually protrudes downward as it approaches the central axis of the filter cloth 81, and is seen in one of the clockwise or counterclockwise directions when viewed from above. A plurality of through holes penetrating from the upper surface to the lower surface are formed, and the backwash pipe 92 of the backwash device 90 penetrates through the center.
For example, the fine powder discharge tube disk-shaped member 96 has a dish shape that gradually protrudes downward as it approaches the central axis of the filter cloth 81, and from the upper surface to the lower surface in the clockwise direction when viewed from above. A plurality of penetrating through holes are formed, and the backwash pipe 92 of the backwash device 90 penetrates through the center.

The high frequency voltage applying unit 97 is a unit that applies a high frequency voltage between the inside of the filter cloth 81 and the outside of the filter cloth 81.
The high frequency voltage application means 97 may apply a high frequency voltage of several tens of thousands volts and several megahertz between the inside of the filter cloth 81 and the outside of the filter cloth 81.
The high-frequency voltage application unit 97 may apply a high-frequency voltage between the inside of the filter cloth 81 and the outside of the filter cloth 81 when the backwash device 90 is operated.
The high-frequency voltage application unit 97 may apply a high-frequency voltage between the inside of the filter cloth 81 and the outside of the filter cloth 81 when high-pressure gas for backwashing is discharged from the backwash pipe 92.
For example, the high-frequency voltage applying means 97 includes a metal electrode provided on the filter cloth support and an antenna lowered to the suction chamber 82, and is configured by an electric device that applies a high-frequency voltage to the metal electrode and the antenna. .
For example, the high-frequency voltage applying means 97 includes a metal mesh-like metal electrode provided on the filter cloth support and an antenna lowered to the suction chamber 82, and an electric device that applies a high-frequency voltage to the metal electrode and the antenna. Composed.
The antenna may be a long wire net.
The antenna may be a metal rod.
An antenna may be provided between the plurality of filter cloth supports.
A plurality of antennas may be provided between each of the plurality of filter cloth supports.

  Next, the operation of the gas processing facility according to the first embodiment of the present invention will be described.

  The gas flowing into the gas processing apparatus 10 passes through the gas suction line 29 and rises between the inner peripheral surface of the outer cylinder 25 and the outer peripheral surface of the cooling jacket 20. In this process, the gas is cooled by exchanging heat with the cooling water in the cooling jacket 20. When the gas reaches between the inner peripheral surface of the outer cylinder 25 and the gas swirl cylinder 16, the gas flows into the gas swirl cylinder 16 from the plurality of openings 17, 17. In this process, the gas is subjected to a clockwise or counterclockwise swirl force at swirl vanes 18, 18,... Provided in the openings 17, 17,. The gas in the gas swirl tube 16 turns downward while swirling, passes through the through hole 14 of the gas swirl plate 13 and flows into the conical inner tube 11. Even in this process, since the through hole 14 of the gas swirling plate 13 penetrates in the gas swirl direction, the gas swirlability is improved.

  In addition to the gas, compressed air from the compressor 4 is also supplied from the ejection nozzle 19 into the conical inner cylinder 11 of the gas processing apparatus 10. In this embodiment, the compressed air is adjusted to about 4.5 to 7.0 kg / cm 2 and is injected into the conical inner cylinder 11 from the ejection nozzle 19 in the gas turning direction. Therefore, the pressure in the conical inner cylinder 11 increases and the turning force of the gas in the conical inner cylinder 11 also increases. It should be noted that the amount of compressed air supplied to one gas processing apparatus 10 is very low at 0.25 Nm 3 / min, assuming that the amount of gas flowing into one gas processing apparatus 10 is about 22 Nm 3 / min. There are few.

  In the conical inner cylinder 11, the pressure increases to a specific pressure and decreases to a specific temperature due to the inflow of compressed air. This temperature drop is caused by the adiabatic expansion effect of compressed air and the effect unique to the cyclone. Furthermore, the gas in the conical inner cylinder 11 is also cooled by the cooling water in the cooling jacket 20. The gas pollutant in the gas is liquefied by the pressure increase and temperature decrease in the conical inner cylinder 11, and is adsorbed by the fine powder solid in the gas. Further, the gaseous pollutant in the gas dissolves in the water which is condensed from the water in the compressed air, and this water is adsorbed by the finely divided solid in the gas. As described above, the finely divided solid adsorbs the water in the compressed air and the liquefied gaseous pollutant, adheres to the finely divided solid, becomes a relatively large lump and becomes heavy, and the gaseous pollutant and At the stage where the finely divided solid descends while swirling with the substantially removed gas, it is separated from the gas under centrifugal force.

  Here, the mechanism for removing gaseous pollutants in the gas will be described below using nitrogen oxides and dioxins as examples.

  Among the pollutants related to air pollution, nitrogen oxides and dioxins are the biggest problems today.

Nitrogen dioxide NO2, which is a nitrogen oxide, is a gas that has been particularly problematic in recent years, as it induces a photochemical “smog” phenomenon and emits a peculiar odor. Nitrogen oxides are generated in the combustion process of fossil fuels such as coal and petroleum, and in the chemical process for producing nitric acid and the like. Among the nitrides, nitric oxide NO is produced by the direct reaction of oxygen and nitrogen during the combustion of the fossil fuel described above, and nitrogen dioxide NO ₂ is produced by the oxidation reaction of nitric oxide again. . When this NO ₂ is cooled, it undergoes a bimolecular bond reaction and changes to colorless liquid nitric oxide (N ₂ O ₄ ).

The reaction formula is 2NO ₂ ⇔N ₂ O ₄ + Q (1)
It becomes. This reaction is a reversible and exothermic reaction, and even if the temperature decreases or the pressure increases, the equilibrium reaction formula (1) proceeds to the right and NO ₂ is liquid nitrogen tetroxide N _2. Change to O ₄ .

Thus, if a finely divided solid is present in an atmosphere in which NO ₂ is changed to liquid N ₂ O ₄ , even a small amount of N ₂ O ₄ is adsorbed to the finely divided solid and removed together with the finely divided particles. Is done. Therefore, as in this embodiment, when the pressure of the gas atmosphere is increased and the gas is cooled, most of the gaseous contaminants in the gas are liquefied and adsorbed on the finely divided solid. The details of the liquefaction of gaseous pollutants in gas are described in the “Air Pollution Guidelines” published by the Kanto Branch of the Analytical Chemical Society of Japan.

  Dioxins are a collective term for both chlorinated dioxins in which two benzene rings are connected by two oxygen atoms and chlorinated dibenzofurans in which two benzene rings are connected by one oxygen atom. These dioxins became known because they were used in the Vietnam War and were contained in large quantities in dead leaves that caused many malformed children. It has also been detected from breast milk of mothers who live in the neighborhood of this incinerator.

  Generation of dioxins in the incineration process of garbage and the like is divided into a case where it is generated in the incinerator and a case where it is generated in the cooling process of the gas discharged from the incinerator.

In an incinerator, a large amount of hydrocarbon (C _n H _m ) is generated at the initial stage of incineration of garbage, etc., and this usually comes into contact with air and decomposes into carbon dioxide and water. If the contact with air is poor, dioxins or a substance (precursor) having a structure similar to that of dioxins is generated. In addition, even if dioxins are not generated in the incinerator, if a precursor of dioxins is generated, this precursor is converted into a catalyst using copper chloride, iron chloride, carbon, etc. during the gas cooling process. May be synthesized into dioxins. In particular, when the gas temperature is around 300 ° C., this synthesis reaction tends to occur. In addition, about 300 degreeC is also melting | fusing point of dioxins.

  Therefore, in this embodiment, before the gas is released into the atmosphere, the temperature of the gas is lowered to less than 300 ° C., which is the synthesis temperature of dioxins, and the precursor is synthesized into dioxins and synthesized. Dioxins and dioxins previously contained in the gas are almost pulverized and collected. Specifically, in this embodiment, the gas of 800 ° C. or higher generated in the boiler 1 is lowered to about 120 ° C. by the cooler 2, and further, in the cooling jacket 20 in the gas processing apparatus 10 A or the cylindrical inner cylinder 11. The gas temperature in the cylindrical inner cylinder 11 is lowered to about 70 ° C. by adiabatic expansion of the gas. As a result, most of the dioxins in the gas are pulverized in the cylindrical inner cylinder 11. As described above, finely divided dioxins adsorb water in compressed air and liquefied gaseous pollutants, adhere to each other in fine powder solids, and form relatively large lumps. When the solid is swirling and descending with the substantially removed gas, the solid is separated from the gas under centrifugal force.

  What is important in the process of removing gaseous pollutants in the gas is the gas swirl cylinder 16 and the gas swirl dish 13 which are swirl flow forming means, and the cooling jacket 20.

  The gas swirl cylinder 16 and the gas swirl dish 13 enhance the gas swirlability in the conical inner cylinder 11, thereby enhancing the effect of separating the finely divided solid in the gas by centrifugal force. The cooling effect is also enhanced. The improvement of the gas cooling effect is as follows. When a swirl flow is formed in the conical inner cylinder 11, the pressure in the vicinity of the central axis of the conical inner cylinder 11 decreases, and the pressure on the outer peripheral side of the conical inner cylinder 11 increases. Therefore, when the gas swirlability in the conical inner cylinder 11 is improved, the pressure difference between the vicinity of the central axis of the conical inner cylinder 11 and the outer peripheral side is further increased. For this reason, when the swirlability of the gas in the conical inner cylinder 11 is enhanced by the gas swirling cylinder 16 and the gas swirling dish-shaped plate 13, the compressed air is swirling and approaches the central axis of the conical inner cylinder 11. As a result, the adiabatic expansion rate of the compressed air is increased, and the gas cooling effect is enhanced. The gas swirling cylinder 16 and the gas swirling dish-shaped plate 13 are provided on the downstream side of the gas swirling cylinder 16 and the gas swirling dish-shaped plate 13 in addition to the role of improving the gas swirlability in the conical inner cylinder 11. It also plays a role in preventing the gas from flowing back due to pressure increasing for some reason.

  The cooling jacket 20 also cools the gas. The cooling jacket 20 cools not only the gas passing between the outer cylinder 25 and the jacket 20 but also the gas passing through the conical inner cylinder 11, in other words, the gas processing apparatus 10. The gas immediately after flowing into the gas and the gas immediately before flowing out from the gas processing apparatus 10 are cooled, and the gas is efficiently cooled. The temperature of the gas in the conical inner cylinder 11 is adjusted to the cooling jacket 20 by adjusting the valve opening degree of the flow rate adjusting valves 22a and 22b provided in the cooling water supply pipe 21a and the cooling water drain pipe 21b. It is adjusted by controlling the amount of cooling water supplied.

  As described above, finely divided solids containing dioxins adsorb water in compressed air and liquefied gaseous pollutants, adhere to each other and form a relatively large lump. In addition, the gas from which the pulverulent solid is substantially removed is sent from the discharge port 12 of the conical inner cylinder 11 through the fine powder discharge pipe 59 into the suction chamber 82 of the bag filter type processing apparatus 80.

  Of the gas sent to the suction chamber 82 of the bag filter type processing apparatus 80, relatively large fine powder falls as it is and is discharged from the fine powder discharge port 86 by the screw 89 provided at the lower portion of the casing 85. Further, relatively small fine particles floating in the gas are collected by the filter cloth 81 in the process of passing the gas from the outer peripheral side to the inner peripheral side of the filter cloth. The gas that has passed through the filter cloth 81 reaches the exhaust chamber 83 from the upper opening of the filter cloth 81, and is exhausted from the exhaust chamber 83 through the exhaust port 88 to the atmosphere.

  When fine powder adheres to the outer periphery of the filter cloth 81 and the differential pressure between the outer peripheral side and the inner peripheral side of the filter cloth 81 increases, compressed air is sent from the backwash device 90 to the inner peripheral side of the filter cloth 81, The fine powder adhering to the outer periphery of 81 is removed. The fine powder is discharged from a fine powder discharge port 86 provided at the lower portion of the casing 85. In this embodiment, fine powder adhering to the filter cloth with compressed air is removed from the backwashing device 90, but a vibrator that vibrates the filter cloth 81 may be provided instead of the backwashing device 90. Good.

  As described above, in the gas processing facility in this embodiment, the gas and fine powder solid contaminants in the gas can be removed without providing a separate large chemical facility, thereby reducing running costs and manufacturing costs. be able to.

  Further, in this gas processing facility, the finely divided solid in the gas in the conical inner cylinder 11 adsorbs the liquefied gaseous pollutant and the water in the compressed air and gradually gets wet. Hold on. Therefore, even a finely divided solid having a considerably small particle diameter gradually becomes a large particle diameter, so that a finely divided solid having a small particle diameter can be separated as compared with a finely divided solid separated by a simple cyclone. Further, after passing through the gas processing apparatus 10, the fine powder is collected by the filter cloth 81. The point to be noted here is that the fine powder exiting the gas treatment device 10 is slightly moistened, so that it easily adheres to the filter cloth 81 and has a much higher collection efficiency than the dry powder of the same diameter. To be higher. Therefore, the removal efficiency of fine powder and the like can be increased.

  As described above, in the first embodiment of the present invention, the boiler is exemplified as the gas generation source. However, the present invention is not limited to this, and any gas can be generated, for example, a ship or a vehicle. The present invention may be applied to diesel engines, chemical plant reactors, garbage incinerators, and the like.

  In the above embodiment, one gas processing device is provided for the gas generation source. However, in order to increase the ability to remove harmful substances in the gas, a larger number of gas processing devices are provided in series. May be. Moreover, in order to increase the amount of gas processing, a plurality of gas processing apparatuses may be provided in parallel with respect to the gas generation source.

  According to the present invention, by increasing and cooling the pressure of the gas in the conical inner cylinder, the gas pollutants in the gas are liquefied and adsorbed by the finely divided solid in the gas. Since it is adsorbed on the bag filter, gas and fine solid contaminants in the gas can be removed without separately providing chemical equipment, and running costs and manufacturing costs can be reduced.

  In particular, in the present invention, since the fine powder in the gas is moistened in the conical inner cylinder, the collection efficiency of the fine powder solid by the filter cloth provided on the downstream side of the conical inner cylinder is enhanced.

Next, a gas processing apparatus according to a second embodiment of the present invention will be described with reference to the drawings.
FIG. 11 is a perspective view of a gas processing facility according to the second embodiment of the present invention. FIG. 12 is a front sectional view of a gas processing apparatus according to the second embodiment of the present invention. FIG. 13 is a perspective view of a screen filter processing apparatus according to the second embodiment of the present invention. FIG. 14 is an EE cross-sectional view of a gas processing apparatus according to the second embodiment of the present invention. FIG. 15 is an FF cross-sectional view of the gas processing apparatus according to the second embodiment of the present invention.

The gas processing facility in this embodiment is an apparatus for processing gas. The gas may be in a hot gas exhausted from the boiler. The gas contains substances present in a solid state such as dust, in addition to air pollutants such as dioxins, NOx and SOx present in a gaseous state.
The gas may contain a radioactive substance. The gas may be a gas exhausted by incineration of a radioactively contaminated substance.
The gas may be processed by a cyclone processing apparatus as a pretreatment.

The gas processing facility in this embodiment may be composed of a cooler that is a cooling unit that cools the gas, and a gas processing facility that processes the gas cooled by the cooler.
The gas processing facility may include the gas processing device 10, the fine powder discharge pipe 59, the fine powder dispersion chamber 30, the screen filter type processing apparatus 40, the fine powder guide pipe 60, and the bag filter type processing apparatus 80.

  The gas processing apparatus 10 may include a compressed gas supply means, a gas swirl cylinder 16, a conical inner cylinder 11, a swirl flow forming means, an injection means, a cooling means, a compressed air distribution means, and a casing.

  Since the basic structure of the gas swirl cylinder 16, the conical inner cylinder 11, the swirl flow forming means, the injection means, the cooling means, and the outer cylinder 25 is the same as that of the gas processing apparatus according to the first embodiment, description thereof is omitted.

The compressed air distributing means is means for distributing the compressed gas to the plurality of ejection nozzles 19.
The compressed air distribution means may distribute the compressed air from the compressor to the plurality of ejection nozzles 19.
The compressed air distribution means includes a compressed air distributor 27 and a drain line 27c.
For example, the compressed air distributor 27 is provided in the upper part of the outer cylinder 25.
The drain line 27 c is a line for draining the liquid accumulated in the compressed air distributor 27.
A compressed air supply pipe 58 extending from the compressor is connected to the compressed air distributor 27.
For example, the compressed air distributor 27 is provided with seven ejection nozzles 19, 19,. The tip of the ejection nozzle 19 is clockwise when the compressed air injected from the tip is along the upper inner peripheral surface of the conical inner cylinder 11 and viewed from above around the central axis C of the conical inner cylinder 11. It is bent to turn in the direction.
For example, the compressed air distributor 27 is provided with seven first jet nozzles 19a, 19a,... And seven second jet nozzles 19b, 19b,.

The fine powder discharge pipe 59 is a pipe that guides the gas containing fine powder discharged from the discharge port 12 of the conical inner cylinder 11 to the screen filter type processing device 40 through the fine powder dispersion chamber 30 described later.
The fine powder discharge pipe 59 is a pipe and communicates one end with the discharge port.
For example, the fine powder discharge pipe 59 is a vertically extending pipe that communicates the upper end with the discharge port and communicates the lower end with the fine powder dispersion chamber 30.

The fine powder dispersion chamber 30 is a room in which a flow containing fine powder discharged from the fine powder discharge pipe 59 is dispersed and supplied to the screen filter processing apparatus 20.
The fine powder dispersion chamber 30 is disposed below the gas processing apparatus.
The upper part of the fine powder dispersion chamber 30 is partitioned by the outer cylinder inner lid 26b.
The lower end of the fine powder discharge pipe 59 penetrates the outer cylinder inner lid 26b.
The fine powder dispersion chamber 30 includes a fine powder dispersion plate 31 and a fine powder guide plate 32.
The fine powder dispersion plate 31 is a conical plate member whose apex is located toward the lower end of the fine powder discharge pipe 59.

The fine powder guide plate 32 is a plate that guides the flow containing the fine powder dispersed by the fine powder dispersion plate 31 to the screen filter type processing device 40 located below.
The fine powder guide plate 32 is a plate in which many through holes are formed so as to partition the fine powder dispersion chamber 30 and the screen filter type processing device 40.
The fine powder discharged from the fine powder discharge pipe 59 is dispersed by the fine powder dispersion plate 31, passes through many through holes formed in the fine powder guide plate 32, and falls to the screen filter type processing device 40.
FIG. 14 shows the inside of the fine powder dispersion chamber 30 as viewed from above.

The fine powder guide plate 32 is arranged so as to partition the fine powder dispersion chamber 30 and the screen filter type processing device 40, and has a plurality of through holes penetrating from the upper surface to the lower surface in the direction in which the gas is swirled. May be formed.
For example, the fine powder guide plate 32 is formed with a plurality of through holes from the upper surface to the lower surface.
For example, the through hole is formed on a line segment drawn in a spiral shape around the central axis C of the fine powder discharge pipe 59.
For example, the through hole is inclined from the upper surface to the lower surface of the fine powder guide plate 32 in the clockwise direction so that the gas that has passed through here becomes a swirling flow in the clockwise direction when viewed from above, and the clockwise through the central axis C. doing.
The lower view of FIG. 14 shows the cross-sectional shape of one through hole formed in the fine powder guide plate 32.
For example, the through-hole formed in the fine powder guide plate 32 is formed with a fin-like projection that is inclined obliquely as it goes downward.
The gas containing fine powder is guided to a through hole formed in the fine powder guide plate 32 and introduced into a screen filter type processing apparatus 40 provided below.

The screen filter type processing apparatus 40 is an apparatus for classifying fine powder by passing a flow containing fine powder through a screen-shaped member.
The screen filter type processing device 40 is disposed below the fine powder dispersion chamber 30.
The screen filter type processing device 40 includes an adsorbing paper 41, a supply roll shaft 42, a take-up roll shaft 43, and a chemical solution supply device 44.
The adsorption paper 41 is a sheet-like member that adsorbs fine powder.
For example, the activated paper 41 is attached with powdered activated carbon.
In the process in which the flow passes through the adsorption paper 41, fine powder (including dioxins) contained in the flow is collected in the adsorption paper 41.
Ammonia supplied from the chemical supply device 50 may adhere to the adsorbing paper. NOx that has not been liquefied in the gas processing apparatus 10 is decomposed into nitrogen and water in the process of passing through the adsorption paper 41.
In order to increase the denitration rate, a catalyst that promotes the reaction between NOx and ammonia may be attached in advance to the adsorption paper 41.
The adsorption paper 41 is made of paper, resinous filter cloth, or the like.
The suction paper 41 wound around the supply roll shaft 42 is wound around the winding roll shaft 43.
New suction paper 41 is supplied from the supply roll shaft 42 into the flow so that the suction paper 41 is not clogged.
The chemical solution supply device 44 is a device that supplies the chemical solution to the adsorption paper 41.
The chemical solution supply device 44 may be a device that supplies fine powder catalyst to the adsorption paper 41. The fine powder catalyst is a catalyst that promotes chemical decomposition of the fine powder taken into the adsorption paper 41.
The chemical solution supply device 44 may supply the adsorption paper 41 with a chemical solution that captures fine powder.
The chemical solution supply device 44 may supply the adsorption paper 41 with a chemical solution that decomposes fine powder.
For example, the chemical solution supply device 44 supplies ammonia to the adsorption paper 41.

The fine powder guide pipe 60 is a pipe that guides the flow including the fine powder that has passed through the screen filter type processing apparatus 40 to the bass filter type processing apparatus.
For example, the fine powder guide pipe 60 is a pipe arranged through the exhaust chamber 83 of the bag filter type processing apparatus 80.
A large number of fine powder guide tubes 60 penetrate the outer cylinder bottom lid 26 </ b> C and the partition plate 84.
The flow containing the fine powder that has passed through the screen filter type processing apparatus 40 passes through the fine powder guide tube 60 and is guided to the suction chamber 82.

The casing 28 is a member that covers the conical inner cylinder 11 and the gas revolving cylinder 16 and the screen filter type processing device 80.
The casing 28 includes an outer cylinder 25, an outer cylinder upper lid 26a, an outer cylinder middle lid 26b, and an outer cylinder bottom lid 26c.
The outer cylinder 25 may cover the outer periphery of the conical inner cylinder 11 and the gas swirl cylinder 16 to which the cooling jacket 20 is attached.
A mantle upper lid 26 a closes the upper portion of the outer cylinder 25. The mantle upper cover 26 a closes the upper opening of the outer cylinder 25.
An intake port 29 a is formed in the outer cylinder 25.
For example, the gas duct 5 extending from the boiler is connected to the intake port 29a via a cooler and a blower fan.
The outer cylinder middle part 26 c partitions the middle of the outer cylinder 25.
The outer cylinder bottom part 26 c closes the lower part of the outer cylinder 25.
The fine powder discharge pipe 59 penetrates the outer cylinder middle part 26b.
The fine powder guide tube 60 penetrates the outer cylinder bottom portion 26c.
FIG. 11 shows a state in which the outer cylinder 15, the outer cylinder upper lid 26 a, and the outer cylinder middle lid 26 b cover the periphery of the conical inner cylinder 11 and the gas turning cylinder 16 to which the cooling jacket 20 is attached.
FIG. 11 shows a state where the corresponding 15, the outer cylinder inner lid 26 b, and the outer cylinder bottom lid 26 c cover the periphery of the screen filter type processing device 80.

  Since the structure of the bag filter type processing apparatus 80 is the same as that of the gas processing facility according to the first embodiment, the description thereof is omitted.

  Next, the operation of the gas processing facility according to the second embodiment of the present invention will be described.

  The gas flowing into the gas processing apparatus 10 passes through the gas suction line 29 and passes between the inner peripheral surface of the outer cylinder 25 and the outer peripheral surface of the cooling jacket 20. In this process, the gas is cooled by exchanging heat with the cooling water in the cooling jacket 20. When the gas reaches between the inner peripheral surface of the outer cylinder 25 and the gas swirl cylinder 16, the gas flows into the gas swirl cylinder 16 from the plurality of openings 17, 17. In this process, a swirl force in the clockwise direction is applied to the gas through swirl vanes 18, 18,... Provided in the openings 17, 17,. The gas in the gas swirl tube 16 turns downward while swirling clockwise, passes through the through hole 14 of the gas swirl plate 13 and flows into the conical inner tube 11. Even in this process, since the through hole 14 of the gas swirling plate 13 penetrates in the gas swirl direction, the gas swirlability is improved.

  In addition to the gas, compressed air from the compressor 4 is also supplied from the ejection nozzle 19 into the conical inner cylinder 11 of the gas processing apparatus 10. In this embodiment, the compressed air is adjusted to about 4.5 to 7.0 kg / cm 2 and is injected into the conical inner cylinder 11 from the ejection nozzle 19 in the gas turning direction. Therefore, the pressure in the conical inner cylinder 11 increases and the turning force of the gas in the conical inner cylinder 11 also increases. It should be noted that the amount of compressed air supplied to one gas processing apparatus 10 is very low at 0.25 Nm 3 / min, assuming that the amount of gas flowing into one gas processing apparatus 10 is about 22 Nm 3 / min. There are few.

  In the conical inner cylinder 11, the pressure increases to a specific pressure and decreases to a specific temperature due to the inflow of compressed air. This temperature drop is caused by the adiabatic expansion effect of compressed air and the effect unique to the cyclone. Furthermore, the gas in the conical inner cylinder 11 is also cooled by the cooling water in the cooling jacket 20. The gas pollutant in the gas is liquefied by the pressure increase and temperature decrease in the conical inner cylinder 11, and is adsorbed by the fine powder solid in the gas. Further, the gaseous pollutant in the gas dissolves in the water which is condensed from the water in the compressed air, and this water is adsorbed by the finely divided solid in the gas. As described above, the finely divided solid adsorbs the water in the compressed air and the liquefied gaseous pollutant, adheres to the finely divided solid, becomes a relatively large lump and becomes heavy, and the gaseous pollutant and At the stage where the finely divided solid descends while swirling with the substantially removed gas, it is separated from the gas under centrifugal force.

  The mechanism for removing gaseous pollutants in the gas is the same as that of the gas processing apparatus according to the first embodiment, and a description thereof will be omitted.

The fine powder that has passed through the gas processing device 10 is collected by the screen filter processing device 40 and the bag filter processing device 80.
Since the fine powder exiting the gas processing apparatus 10 is slightly moist, it is easy to adhere to the filter cloth 81, and the collection efficiency is much higher than that of the dry powder of the same diameter. Therefore, the removal efficiency of fine powder and the like can be increased.

Next, a gas processing apparatus according to a third embodiment of the present invention will be described with reference to the drawings.
FIG. 16 is a perspective view of a gas processing apparatus according to the third embodiment of the present invention.
FIG. 16 illustrates a gas generation source omitted in the drawings of other embodiments.

Below, an example of a gas generation source is demonstrated easily.
For example, the gas generation source includes a boiler 1, a cooler 2, a blower fan 3, and a communication pipe 5.
Boiler 1 is a device that burns heavy oil and other flammable substances inside.
The cooler 2 is a device that cools the gas generated in the boiler 1.
The blower fan 3 is a blower that blows the exhaust gas cooled by the cooler 2 to the gas processing device.
The communication pipe 5 is a pipe that guides the gas generated in the boiler 1 to the gas processing device 10 via the cooler 2 and the blower fan 3.
The gas cooled by the cooler contains fine powder.
For example, the fine powder is so-called PM2.5.
For example, the fine powder contains radioactive cesium.
For example, the gas cooled by the cooler contains vaporized material.
For example, the gas cooled by the cooler includes a liquid substance.

  The gas processing facility may be configured by the gas processing device 10, the fine powder discharge pipe 59, the fine powder dispersion chamber 30, the screen filter type processing apparatus 40, the fine powder guide pipe 60, the bag filter type processing apparatus 80, and the liquid circulation device.

  The gas processing apparatus 10 may include a compressed gas supply means 4, a gas swirl cylinder 16, a conical inner cylinder 11, a swirl flow forming means, an injection means, a cooling means, a compressed air distribution means, and a casing 28.

  The basic structure of the compressed gas supply means 4, the gas swirl cylinder 16, the conical inner cylinder 11, the swirl flow forming means, the injection means, the cooling means, and the outer cylinder 25 is the same as that of the gas processing apparatus according to the first embodiment. Therefore, explanation is omitted.

  Since the fine powder guide tube 60 and the bag filter type processing device 80 are the same as those of the gas processing device according to the second embodiment, the description thereof is omitted.

The liquid circulation device is a device that collects and circulates the liquid discharged from the screen filter type processing device 40 and collected in the screw 89.
The liquid circulation device includes a lower cone type tank 61 and a liquid circulation pump.
The lower cone type tank 61 is a tank for temporarily storing the liquid collected in the screw 90. A sludge discharge port for discharging sludge accumulated inside is formed in the lower portion of the lower cone type tank 61.
The liquid accumulated in the lower cone type tank 61 is adjusted in pH and sent by a liquid circulation pump.
For example, the liquid circulation pump sends the liquid to the exhaust gas revolving cylinder 16.

  Since the operation of the gas processing apparatus according to the third embodiment is the same as that of the gas processing apparatus according to the second embodiment, the description thereof is omitted.

Next, the gas processing apparatus 10 which concerns on 4th embodiment of this invention is demonstrated based on a figure.
FIG. 17 is a side cross-sectional view of a gas processing apparatus according to the fourth embodiment of the present invention.

The gas processing apparatus according to the fourth embodiment includes a compressed gas supply means 4, a plurality of gas swirling cylinders 16, a plurality of conical inner cylinders 11, a plurality of swirling flow forming means, a plurality of injection means, and a plurality of cooling means. A plurality of compressed air distribution means and the casing 28 may be used.
A plurality of gas swirling cylinders 16, a plurality of conical inner cylinders 11, a plurality of swirling flow forming means, a plurality of injection means, a plurality of cooling means, a plurality of compressed air distributing means, and a plurality of bag filter processing devices 80 are provided. Built in one casing.

  Since the operation of the gas processing apparatus 10 according to the fourth embodiment of the present invention is the same as that of the above-described gas processing apparatus, description thereof is omitted.

  Below, the gas processing mechanism of the gas processing apparatus which concerns on embodiment of this invention is explained in full detail.

The gas swirling plate is formed in a spiral shape along the virtual two lines through the through hole in the upper part of the flow shape of the gas fed from the top, and the gas flow that is sequentially discharged penetrates from the large mouth to the reduction mouth Has been. By attaching a spatula-shaped projection to the gas outlet of the hole and setting the angle of the gas swirling, the gas stably creates a swirl according to the rotating blade without resistance, and the intensified particles collide with each other and efficiently enhance the adsorption.
The gas swirling dish-shaped plate is a dish-shaped plate obtained by processing a member.
Supporting the circular center of a single gas swirling plate with a low frictional resistance, when heated from the bottom of the gas swirling plate, if the exhaust gas is passed from the large to small through holes, it follows the flow of heated air. Rotate. By adjusting the direction of the wings, it is possible to select a gas swirl plate that promotes acceleration and forms a stable vortex.

  A large number of clashing blades that can control the resistance of vortex rotation and pass through gas are provided in two stages, and the special nozzle is arranged in two stages in order to increase the fine particle separation and adhesion by the instantaneous frictional force of the high-pressure air nozzle and the clashing of the rotating blades. The pressure flowing into the casing can be increased and slammed to maintain a constant pressure, so that PM2.5 in the fine particle dust can pass through the adhesion rate in the casing.

Direction of movement of chemical flattening Increases (decreases) concentration, pressure, and temperature concentration. A new leveling occurs in which the reaction decreases in the direction that the concentration decreases. The reaction takes place in the direction of the action (the reaction from side to side) reaches a new operation (from side to side).
When the concentration is high, the temperature 2NO ₂ f production reaction is absorbed in the direction of absorption, and the flattening moves to the left in the direction of heat generation when the moving temperature is lowered (exothermic reaction).

  In the casing, the pressure increases due to the inflow of compressed gas, and the temperature decreases due to adiabatic expansion of the compressed gas. For this reason, some of the pollutants in the exhaust gas flowing into the casing and flowing into the casing change into gas due to an increase in pressure and a decrease in concentration. The air pollution becomes liquid and collides with the fine powder solid pollutant in the conical cylinder vortex, and is adsorbed thereto. This finely divided solid is removed by the action of centrifugal force, that is, the gaseous pollutant is in the form of the finely divided solid adsorbed, and the finely divided solid is treated with a filter, removed from the exhaust gas and discharged from the outlet. Is done.

  The exhaust gas removal device described in the publication of International Patent No. 3135519 efficiently treats exhaust gas in which pollutants present in solid state and air pollutants present in gaseous state coexist with relatively simple equipment. It can be said that the manufacturing cost and running cost are not high and it is very excellent.

  However, the amount of particulates such as PM2.5 that are emitted from ash dust is increasing as high-temperature combustion progresses, and the cesium treatment in radioactive plants in the Tohoku Earthquake has not progressed. It exists in the solid state to meet these demands. Provided is an exhaust gas processing apparatus capable of efficiently processing exhaust gas mixed with pollutants and air pollutants present in a gaseous state, and a relatively simple apparatus, and an exhaust gas processing apparatus including the exhaust gas processing apparatus. For the purpose.

  The first to fourth exhaust gas treatment facilities are reduced in diameter toward the lower side, and an upper opening for taking in the exhaust gas is formed at the upper part, and exhaust gas constituents passing through the inside are discharged at the lower part. A hollow conical cylinder in which a lower opening is formed, an ejection nozzle that ejects compressed gas in a direction along the upper inner peripheral surface of the conical cylinder and turning around the central axis of the conical cylinder, A compressed gas supply means for supplying compressed gas to the ejection nozzle is provided. A short nozzle is used in two stages from one pressure tank.

  The cooling means includes a cooling jacket that covers the outer peripheral surface of the conical cylinder and is supplied with a refrigerant between the outer peripheral surface of the conical cylinder, a refrigerant supply means that supplies the refrigerant into the cooling jacket, And a refrigerant discharge means for discharging the refrigerant from.

  Exhaust from the lower opening of the conical cylinder enters, an exhaust port for adjusting the pressure of the gas component in the exhaust gas is formed in the upper part, and an exhaust port for discharging the fine powder solid in the exhaust gas is formed in the lower part Have

  The gas processing equipment according to the second to third embodiments includes a sheet that is arranged in a gas flow path in the casing and has a large number of fine holes through which gas can pass.

  The first to fourth gas processing devices process exhaust gas. An apparatus in which the exhaust gas enters the conical cylinder from the exhaust gas generation source can be processed according to the number of processes.

  In the gas processing facility according to the first to fourth embodiments, the swirl flow is formed by swirling the exhaust gas around the central axis of the conical cylinder and feeding the exhaust gas into the conical cylinder from the upper opening of the conical cylinder. Means.

  The swirling flow forming means is installed at the upper end of the conical cylinder, has a hollow cylindrical shape, and an opening for taking in the exhaust gas into the hollow cylinder is formed on the side periphery thereof, and the exhaust gas flowing into the hollow cylinder is swirled from the opening. The swirl vane has an exhaust gas swirl cylinder attached to the edge of the opening.

  The swirling flow forming means is installed at the upper end of the conical cylinder, forms a dish shape that gradually protrudes downward as it approaches the central axis of the conical cylinder, and in the direction of swirling the front exhaust gas from its upper surface An exhaust gas swirling dish-like plate having a plurality of through holes penetrating on the lower surface thereof is formed.

  The sheet of the gas treatment facility according to the second to fourth embodiments is a screen filter having a band shape, a supply roll shaft around which the screen filter is wound, and a winding roll shaft around which the screen filter is wound. A winding mechanism that rotates the take-up roll shaft, and the supply roll shaft and the take-up roll shaft are supplied from the supply roll shaft and the screen filter before being wound around the take-up roll shaft is gas in the casing. It is arranged so that it may be located in a flow path.

  The fine particles are adsorbed on the surface of the screen filter by a relatively small substance such as PM2.5, and the fine particles that have flown back as a new processing means for capturing fine particles that have flowed back and ultra-fine particles such as PM2.5. Treat the exhaust gas with a filter.

  When the screen filter is treated with exhaust gas, the water is concentrated, especially the harmful substances are gasified and adsorbed on the solid surface, and the formed fine particles are adsorbed on the surface of the screen filter and wound up. The screener filter to be processed can be a low-cost and easy-to-process filter that is durable by adding yarn to toilet paper with the highest adsorption efficiency.

  The gas processing equipment according to the first to fourth embodiments is characterized by including a plurality of nozzles, and the fine particles are sufficiently expanded and easily removed.

  The screen filter adsorbs at least one of a substance that adsorbs a specific component in exhaust gas, a substance that reacts with the specific component, and a substance that promotes the reaction of the specific component.

  The gas processing equipment according to the first to fourth embodiments includes cooling means for cooling the exhaust gas from the exhaust gas generation source and means for sending the cooled exhaust gas to the upstream side exhaust gas processing apparatus.

  A plurality of through-holes are formed through which the exhaust gas directly directed downward passes through the lower surface of the exhaust gas in the direction of swirling the exhaust gas, and a through dish is formed so that the exhaust gas is adsorbed on the surface of the screen filter in a wide average range. It is a feature.

  The present invention is characterized in that a supply roll shaft around which a screen filter is wound, a screen filter includes a winding roll shaft, and a winding shaft roll paper. A screen filter that is wound around a roll shaft is provided.

  The lower part of the casing is equipped with a screen filter in the form of a sheet band formed to adsorb exhaust gas and fine particles that are condensed with moisture and chemical substances during compression. Even if this occurs, the draining process is unnecessary without disturbing the gas flow, and the cost is reduced.

  A PTFE filter cloth back filter type processing device is processed downstream by a two-stage system.

  Two gas swirling dish-shaped plates, which are disk-shaped members in which a plurality of through-holes are formed, are reduced in diameter as they are directed downward, and are formed at the lower portion, and the upper end of the conical inner cylinder is adjusted to the amount to be processed. Can handle more exhaust gas in the same casing

  The fine particle treatment that occurs during combustion is performed by a swirling blade that swirls the exhaust gas so that the fine particles in the exhaust gas in which contaminants of fine dust solids and gaseous air pollutants coexist are efficiently adsorbed to the surface of the screen filter. It has an exhaust gas revolving cylinder attached to the edge of the opening, and can be processed efficiently with a relatively simple device.

  The screen filter is arranged so as to be located in the gas flow path in the casing. The particles are adsorbed on the surface of the screen filter by relatively small substance particles, and as a new processing means to catch the ultra fine particles such as PM2.5, the fine particles that have passed through here are used to wear the back filter. Features exhaust gas fines treatment with gas treatment equipment to prevent.

  The sheet is a screen filter having a band shape. The sheet is a screen filter having a band shape.

  By increasing the pressure and temperature, the gas contaminants in the gas can be liquefied to a finely divided solid in the gas. Adsorbed.

  Water droplets determine solid clay concentration or adsorption rate. Adsorbed by the fine solids in the exhaust gas, as described above, the water droplets in the compressed air and the liquefied gaseous contaminants are adsorbed and adhered to each other, forming a relatively large lump and becoming heavier, At the stage where the finely divided solid is swirling and descending with the gas that has been almost removed, it is separated from the gas by the centrifugal force and moisture is adsorbed. The temperature drops to This is caused by the adiabatic expansion effect of air and the effect unique to the cyclone due to the temperature drop. Furthermore, the gas in the conical coast is cooled in the cooling jacket. Gaseous contaminants in the gas are liquefied by the pressure increase and temperature decrease of the conical inner cylinder, and the remaining liquid adsorbed by the finely divided solid in the gas is adsorbed by the roll paper.

General waste treatment SOX, hydrogen chloride, dioxin, cyanide (heavy metal) materials, arsenic, etc. Recently, the temperature of combustion has been raised, and particulates such as PM2.5 are discharged in large quantities, affecting the human body and increasing to a new subject of regulation.
The gas processing facility according to the embodiment of the present invention exhibits an excellent effect in processing these fine particles.

Specified chemical substances include chlorinated dibenzofurans, (PCDD), benzene, styrene, formaldehyde, cyanide compounds, organic phosphorus, chromium, trichlorethylene, (HCN), tin, mercury, lead, arsenic, cadmium, cesium in radioactivity, Etc.
Since April 2002, the Environment Agency and the Ministry of International Trade and Industry have said that there are about 354 types of chemical substances (PRTR) law class 1 specified chemical substances, and about 500 types of chemical names that are handled by MSDS.

Furthermore, the gas treatment facility according to the embodiment of the present invention exhibits an excellent effect on cesium treatment.
Cesium mixed with exhaust gas baked in rubble / flowers / mountain uplift / dirt treatment / combustion furnace can be treated with this gas treatment facility. After processing, the quantity is reduced to 1/1000, ensuring safety and storing in a lead container. Fine particles and combustion ash can be treated in the same way.

Plants, soils, and soils are not treated with cesium alone, but are treated with combustion treatments and purified by direct reaction with oxygen and nitrogen during combustion. Nitrogen dioxide 2NO ₂ N ₂ O ₂ reaction formula increases the NO ₂ concentration when in a flat state and NO ₂ concentration is the concentration setting of the solids solids of chemicals individuals nitrogen other in the polymer elemental carbon particles reaching the new flat surgery happening reaction in the direction of small dark are important micro seconds waterdrops For adjustment, the vortex principle was applied to create a temperature difference and fine water droplets could be obtained, allowing concentration setting and instantaneous stirring.

As described above, the gas processing facility according to the embodiment of the present invention has the following effects due to its configuration.
A gas swirling dish-like plate 13 which is a disc-like member in which a plurality of through-holes are formed is installed at the upper end of a conical inner cylinder 11 whose diameter is reduced as it goes downwards and a discharge port 12 is formed in the lower part. Since the gas 19 is ejected in a direction along the upper inner peripheral surface of the conical inner cylinder 11 and along the direction in which the gas fed into the upper part of the conical inner cylinder 11 is swirled, The liquid or solid substance can be solidified while swirling on the inner wall of the conical inner cylinder 11 and discharged from the discharge port 12 at the lower end, and even if back pressure is generated at the discharge port 12, the gas flow is not disturbed.
Further, the two gas swirling dish-like plates 13 which are disk-like members in which a plurality of through holes are formed are arranged at the upper end of the conical inner cylinder 11 whose diameter is reduced as it goes downward and the discharge port 12 is formed in the lower part. As a result, the liquid or solid substance in the gas can be solidified while swirling on the inner wall of the conical inner cylinder 11 and discharged from the discharge port 12 at the lower end. Does not disturb the flow.
Further, since the first injection nozzle 19a jets the compressed gas into the gap sandwiched between the at least two gas swirling plate-like plates 13, the gas entering the gap sandwiched between the two gas swirling plate-like plates 13 is used. Is swung along the conical inner cylinder 11.
Further, since the second injection nozzle 19b jets the compressed gas into the space below the at least two gas swirling dish-shaped plates 13, the gas that has passed through the at least two gas swirling dish-shaped plates 13 is allowed to flow into the conical shape. Turn along the cylinder.
A gas swirling dish-like plate 13 which is a disc-like member in which a plurality of through-holes are formed is installed at the upper end of a conical inner cylinder 11 whose diameter is reduced as it goes downwards and a discharge port 12 is formed in the lower part. Since the gas 19 is ejected in a direction along the upper inner peripheral surface of the conical inner cylinder 11 and along the direction in which the gas fed into the upper part of the conical inner cylinder 11 is swirled, The liquid or solid substance can be solidified while swirling on the inner wall of the conical inner cylinder 11 and discharged from the discharge port 12 at the lower end. Even if back pressure is generated at the discharge port 12, the gas flow in the conical inner cylinder Disturbance can be suppressed.
In addition, the fine powder discharge pipe disk-shaped member 95 in which a plurality of through holes are formed is provided so as to block the flow of the fine powder discharge pipe 59 whose upper end communicates with the discharge port. Even if a back pressure is generated at the lower end of the gas, disturbance of the gas flow at the discharge port can be suppressed.
Further, the fine powder discharge pipe 59 penetrates the casing 28 from above, the lower end is located inside the suction chamber 82, and the opening of the bag-like filter cloth 81 is formed in the opening of the partition plate 84 that partitions the suction chamber and the exhaust chamber. Since it was made to communicate, the fine powder in the gas processed with the exhaust gas processing apparatus can be filtered with a filter cloth.
In addition, since the filter cloth opening disk-like member 96 in which a plurality of through holes are formed is provided in the opening of the filter cloth 81, the flow of gas in the suction chamber 82 is prevented even if back pressure occurs in the exhaust chamber 83. Disturbance can be suppressed.
Moreover, since the high frequency voltage is applied to the inside and the outside of the filter cloth 81, the backflow of fine powder can be suppressed even if the gas flow is disturbed in the suction chamber 82.
As a result, the fine particles contained in the gas can be efficiently captured, and the fine particles contained in the gas can be efficiently separated.
For example, toxic fine particles contained in the gas can be efficiently captured, and toxic fine particles contained in the gas can be efficiently separated.
For example, the radioactive substance fine particles contained in the gas can be efficiently captured, and the radioactive substance fine particles contained in the gas can be efficiently separated.

  The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the scope of the invention.

DESCRIPTION OF SYMBOLS 1 Boiler 2 Cooler 3 Blower blower 5 Communication pipe 10 Gas processing apparatus 11 Conical inner cylinder 12 Discharge port 13 Gas swirling plate-like plate 14 Through-hole 16 Gas swirling cylinder 17 Opening 18 Swirling blade 19 Jet nozzle 19a First injection nozzle 19b Second injection nozzle 20 Cooling jacket (cooling means)
21a Cooling water supply pipe 21b Cooling water drain pipe 22a Flow control valve 22b Flow control valve 23a Thermometer
23b thermometer 25 outer cylinder,
26a Outer cylinder top cover 26b Outer cylinder middle cover 26c Outer cylinder bottom cover 27 Compressed air distributor 27a First compressed air distributor 27b Second compressed air distributor 27c Drain line 28 Casing 29 Gas suction line 29a Inlet 30 Fine powder dispersion chamber 31 Fine powder dispersion plate 32 Fine powder guide plate 40 Screen filter type processing device 41 Adsorption paper 42 Supply roll shaft 43 Winding roll shaft 44 Chemical liquid supply device 58 Compressed air supply pipe 59 Fine powder discharge pipe 60 Fine powder guide pipe 61 Lower cone type tank 69 Liquid circulation Pump 80 Bag filter type processing device 81 Filter cloth 82 Suction chamber 83 Exhaust chamber 84 Partition plate 85 Casing 86 Fine powder discharge port 88 Exhaust port 89 Screw 90 Backwash device.
91 Header 92 Backwash pipe 95 Fine powder discharge pipe disk-shaped member 96 Filter cloth opening disk-shaped member 97 High frequency voltage applying means

Japanese Patent No. 2912216 Japanese Patent No. 3135519

Claims (11)

A gas processing facility for processing gas,
Gas treatment equipment,
Prepared,
The gas processing device is
A hollow conical tube that is reduced in diameter as it goes downward and forms a discharge port at the bottom,
A disc-like member installed at the upper end of the conical cylinder, wherein the swirling flow forming means has at least two gas swirling dish-like plates in which a plurality of through holes are formed;
An injection means having an ejection nozzle that ejects compressed gas in a direction along the direction of swirling the gas that has been fed into the upper portion of the conical cylinder along the upper inner peripheral surface of the conical cylinder;
Have
At least two gas swirl plates overlap each other with a gap between them,
A gas processing facility characterized by that. A first injection nozzle, which is an injection nozzle of the injection means, injects compressed gas into a gap sandwiched between at least two gas swirling plates;
The gas processing facility according to claim 1. A second injection nozzle that is an injection nozzle of the injection means injects compressed gas into a space under at least two gas swirling dish-like plates;
The gas processing facility according to claim 2. The exhaust gas treatment device is a fine powder discharge pipe that is a pipe and communicates one end with the discharge port;
A disk-shaped member provided so as to block the flow of the fine powder discharge pipe, and a plurality of through holes are formed;
Having
The gas processing facility according to claim 3. Bug filter processor
Prepared,
The bug filter type processing device comprises:
A casing,
A partition plate provided with a partition plate opening which is a partition opening in the suction chamber and the exhaust chamber;
A filter cloth in the form of a bag having an opening and communicating the opening with the partition plate opening;
Have
The fine powder discharge pipe penetrates the casing from above and the other end is located inside the suction chamber;
The gas processing facility according to claim 4, The bug filter processing device comprises:
A filter cloth opening plate-like member which is a plate-like member provided in the opening of the filter cloth and has a plurality of through holes formed therein;
Having
The gas processing facility according to claim 5. The bug filter processing device comprises:
High-frequency voltage applying means for applying a high-frequency voltage to the inside of the filter cloth and the outside of the filter cloth;
Having
The gas processing facility according to claim 6. A gas processing facility for processing gas,
Gas treatment equipment,
Prepared,
The gas processing device is
A hollow conical tube that is reduced in diameter as it goes downward and forms a discharge port at the bottom,
A disc-like member installed at the upper end of the conical cylinder, and a swirling flow forming means having a gas swirling dish-like plate in which a plurality of through holes are formed;
An injection means having an ejection nozzle that ejects compressed gas in a direction along the direction of swirling the gas that has been fed into the upper portion of the conical cylinder along the upper inner peripheral surface of the conical cylinder;
A fine powder discharge pipe that is a pipe and communicates one end with the discharge port;
A disk-shaped member provided so as to block the flow of the fine powder discharge pipe, and a plurality of through holes are formed;
Having
A gas processing facility characterized by that. A gas processing facility for processing gas,
A gas treatment device;
A bug filter processing device;
Prepared,
The gas processing device is
A hollow conical tube that is reduced in diameter as it goes downward and forms a discharge port at the bottom,
A fine powder discharge pipe that is a pipe and communicates one end with the discharge port;
Have
The bug filter processing device comprises:
A casing,
A partition plate provided with a partition plate opening which is a partition opening in the suction chamber and the exhaust chamber;
A filter cloth in the form of a bag having an opening and communicating the opening with the partition plate opening;
Have
The fine powder discharge pipe penetrates the casing from above and the other end is located inside the suction chamber;
A gas processing facility characterized by that. A gas processing facility for processing gas,
A gas treatment device;
A bug filter processing device;
Prepared,
The bug filter processing device comprises:
A casing,
A partition plate provided with a partition plate opening which is a partition opening in the suction chamber and the exhaust chamber;
A filter cloth in the form of a bag having an opening and communicating the opening with the partition plate opening;
A plate-like member provided in the opening of the filter cloth and having a plurality of through holes, and a filter cloth opening plate-like member,
Introducing the gas processed by the gas processing device into the suction chamber;
A gas processing facility characterized by that. A gas processing facility for processing gas,
A gas treatment device;
A bug filter processing device;
Prepared,
The bug filter processing device comprises:
A casing,
A partition plate provided with a partition plate opening which is a partition opening in the suction chamber and the exhaust chamber;
A filter cloth in the form of a bag having an opening and communicating the opening with the partition plate opening;
High-frequency voltage applying means for applying a high-frequency voltage to the inside of the filter cloth and the outside of the filter cloth;
Have
Introducing the gas processed by the gas processing device into the suction chamber;
A gas processing facility characterized by that.

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