TWI436003B - The method of trash burning process for a two-step whirling current layer type incinerator - Google Patents

Description

Incineration treatment method for waste of two-stage rotating fluidized bed incinerator

This invention relates to a two-stage rotary flow layer incinerator. In particular, it relates to a two-stage rotating fluidized bed incinerator capable of converting the harmful substances in the generated combustion gas into stable by high-temperature thermal decomposition of a plurality of diverse wastes, either alone or in combination. The substance is rendered harmless; furthermore, the suspended particulate matter can be separated and removed; and the pressurized air is converted into hot air pressurized air by the heat energy of the combustion exhaust gas.

Usually, waste includes so-called kitchen garbage and paper such as vegetable or animal food crumbs. fiber. wood. bamboo. Plastic class. rubber. leather. Garbage and other debris, other sand. glass. Ceramics. Metals, etc. Kitchen garbage and sundries are combustibles containing 60% to 80% moisture, but sand. glass. Ceramics. Metals are incombustible. There is almost no regional difference in the ratio of these combustibles to incombustibles. Mixed garbage accounts for about 80% of combustibles and 20% of incombustibles. In addition, in various other combustible materials such as pulp waste liquid or petroleum refined sulfuric acid slag, incombustible materials are contained, although there are some differences. Further, with the spread of chemical products, a large amount of dioxin or polychlorinated chlorin which is a highly toxic aromatic organic chloride is contained in the incineration ash and the combustion fly ash which are generated from the incineration treatment facility. If these harmful substances flow out into the natural world, there will be shortcomings that directly affect the natural environment or health, and large social problems will be formed.

At present, incineration of waste is carried out by using a fixed hearth type, an automatic coal feeder (baking furnace) type, a fluidized bed type, and a gasification melting type. but Yes, these incineration treatments do not inhibit the resynthesis of dioxins or polychlorinated oximes. 2. In the incineration ash and the combustion fly ash trapped by the dust collector, it must contain dioxins. Polychlorinated hydrazines or heavy metals. The current situation is that incineration ash and combustion fly ash are only repeatedly reprocessed by means of a melting furnace, etc., and no special incineration method is used to suppress dioxins. Measures for the resynthesis of polychlorinated hydrazines and the like.

A conventional incinerator, in which stone is mixed in the incineration. glass. Ceramics. Most of the treatment of incombustible materials such as metals does not have any consideration. Even if an incombustible material removing device or a crushing device is provided in the pretreatment process of the incinerator, an inefficient incineration process cannot be obtained. Incombustible materials other than dust and garbage, such as pulp waste. The same problem exists in sulfuric acid slag. In addition, hydrogen chloride (HCl), oxygen (O ₂ ), and carbon monoxide (CO) produced by the combustion of incineration compounds may recombine highly toxic dioxins by burning heavy gold in fly ash or burning residual carbon. Classes, and produce polychlorinated oximes, causing major social problems. However, conventional incineration methods cannot solve this problem.

For example, Japanese Laid-Open Patent Publication No. SHO-46-892 discloses a method in which an incinerator is thrown into an inclined fire bed from above, and air is blown from below to the upper inclined obstruction plate. A combustion device for the circulation of air. Since the device is insufficient in the circulation of the air and the incineration is directly introduced into the device, there is a drawback that it is almost impossible to expect complete combustion.

Further, there is a one-stage combustion method (for example, Japanese Laid-Open Patent Publication No. SHO-49-108856), which is an opening portion from the top of the furnace. The incineration is injected, and the air blown from the exhaust pipe provided in the lower portion of the incineration is used to fluidize and burn the injected incineration, and then the spiral conveyance provided in the lower portion of the exhaust pipe is used. Machine, the non-combustible material is discharged to the outside of the device. However, when this method is used, it is impossible to achieve complete combustion in the fluidized layer formed by the incineration, and the combustion of the incineration of the water is incompletely burned.

In the Japanese Patent Laid-Open Publication No. SHO-52-90174, a one-stage type combustion apparatus is provided in which a blade feeder is provided at the bottom of the incinerator, and is blown from the lower side of the blade feeder through the exhaust pipe. Into the air. In this combustion apparatus, the incinerated material is conveyed from the one end of the blade feeder into the furnace, and the air blown from the lower side of the blade feeder groove forms the fluidization of the incinerated material. However, this method does not necessarily result in complete combustion because it is used in a one-stage type of combustion apparatus.

A method of burning a two-stage combustion method is described in Japanese Laid-Open Patent Publication No. Sho 55-95016, which is incorporated herein by reference. Dropped from the upper side of the fluidized bed chamber of the main body of the incinerator, and dropped into a fluidized layer formed by a heat medium (sand sand, etc.) to burn a part of the incinerated material, and the falling through the flowing layer into the blade feeder The incineration is formed by the blade feeder being pulverized and using an exhaust pipe provided from the air blown from the feed chute and the intermediate portion of the fluidized bed chamber to form a stable flow layer, and one from above the exhaust pipe The wall is obliquely upward and obliquely downward from the opposite wall, and air that has undergone heat exchange outside the furnace is blown from the bellows to form a swirling flow layer. In this case, the incineration can be carried by the rotating stream. All burning. However, in the incinerated material that is put into the furnace, incombustible materials such as large stones or metal blocks are often mixed in the blade space. Therefore, the rotation of the blade feeder is stopped, and the combustible material cannot be smoothly crushed. Incombustible handling, it is often impossible to perform adequate secondary combustion. Moreover, there are fundamental disadvantages such as having to temporarily stop the incineration device itself. Moreover, due to the acid gas generated by the combustion of the incineration, such as hydrogen chloride, etc., most of the device is a significant deterioration of the refractory material of the inner wall of the furnace body, except for the special case, completely damaging the function of the device itself, and it is impossible to carry out Incineration. Therefore, the expenses required for the work or repairs to make up for these problems increase. In addition, in the incinerator, re-synthesis of dioxin or polychlorinated oxins, which are highly toxic aromatic organic chlorides, is hardly suppressed.

The dust collecting devices currently developed include (1) cyclone dust collector (2) cleaning dust collecting device (venturi dust collector) (3) electric dust collecting device (4) bag type dust collector (5) sound wave dust collecting device. Among them, when the sound wave dust collecting device imparts vibration to the processing gas by the sound wave, the floating particles collide with each other and aggregate. Since the aggregated particles have an increased particle size in appearance, they can be easily collected by a cyclone or the like. However, there is a problem of noise pollution caused by sound waves, which is now almost no longer used. Since the cyclone dust collector is applied to a particle diameter of 5 μm to 10 μm, there is a drawback that it cannot cope with the problem of containing particles of about 1 μm. The trapping performance of the cleaning dust collecting device is located between the cyclone and the bag filter, and since a drainage containing a large amount of dust is generated, a large-scale drainage treatment is required. The electric dust collecting device moves the charged particles along the positive electrode plate and adheres to the positive electrode plate, and processes Gas separation. The removal of the adhering particles is a method of mechanically separating from the positive electrode plate by a hammer or the like (dry method), and a method of rinsing with a water flow (wet method). The electric dust collector can collect the smallest particles (about 0.1 μm) in various dust collectors, and can also be used under high temperature and high pressure. The pressure loss is also small (10 mm water column), and the running cost is low, so it is available. Used in a large amount of gas treatment. However, since the electric dust collector requires a high voltage (a few thousand volts or more) and a rectifier, the equipment cost is the highest, and when the particles adhering to the positive electrode plate are mechanically removed by hammering or the like (four times or more/time), A large amount of dust is discharged into the atmosphere. On the other hand, in the case of flushing with water, there is a disadvantage that drainage treatment is required. When the dust accumulates on the filter cloth, the loss of the process gas pressure increases, so it is necessary to sweep the dust at regular intervals. Therefore, it is impossible to process the set of process gas with adhesive dust or moisture. dust. The sweeping method has a method of blowing in the reverse airflow or mechanical vibration, but the sweeping process is a method that uses the suspension filtering operation or sequentially sweeps the bag portion into several groups, which is a very unreasonable method. The above problem cannot be solved.

The heat exchanger for recovering heat energy from the combustion exhaust gas of the waste incineration facility is usually disposed on the high temperature side as much as possible. However, since the combustion exhaust gas contains a large amount of moisture and floating particles, the combination of the heat exchanger and the dust collecting device is difficult. Further, since the floating particles are easily attached to the heat exchanger, it is necessary to provide the heat exchanger on the low temperature side. Therefore, effective heat recovery cannot be achieved in practice.

The object of the present invention is to solve the above problems and to provide an ability to suppress Re-synthesis of highly toxic dioxins or polychlorinated oximes caused by burning of incinerations, effectively dusting dust, and efficiently recovering heat energy to prevent combustion gases discharged into the atmosphere White turbidity incineration device and incineration method.

The present invention provides a two-stage rotary flow layer incinerator system comprising: a first stage rotating fluidized bed chamber; a second stage gas rotating chamber in fluid communication with an upper portion of the first rotating liquid layer chamber; a gas combustion chamber And in fluid communication with an upper portion of the second stage gas rotating chamber; a wet wall type gas cooling chamber disposed at an upper portion of the gas combustion chamber; a wet ultrasonic dust collecting device, and the wet wall type gas cooling chamber The upper side is in fluid communication; the rotary air heat exchanger and the flow air heat exchanger are in fluid communication with the wet ultrasonic dust collecting device; and the exhaust chamber has a dust collection in the wet ultrasonic wave a combustion exhaust gas that has been subjected to dust removal in the apparatus and exchanged heat in the rotary air heat exchanger and the flow air heat exchanger to the exhaust cylinder outside the system; and the two-stage rotary fluidized bed incinerator system The heat energy obtained by heat exchange between the rotary air heat exchanger and the flow air heat exchanger is used in the first-stage rotating fluidized bed chamber, the second-stage gas rotating chamber, and Rotating flow generated exhaust pipe. In the first-stage rotating fluidized bed chamber, a conical bottom plate is provided, which is provided with a plurality of small-hole nozzles and a heat medium take-out port; a bellows disposed below the conical bottom plate; and a hot air supply pipe; Pressurizing air is supplied into the bellows; and a heat medium is preliminarily filled on the conical bottom plate, and the pressurized air sent from the hot air supply pipe is passed through a plurality of small hole nozzles. Spouting above the conical bottom plate to blow the heat medium to form a flow Further, in the upper inner wall of the first-stage rotating fluidized bed chamber, a plurality of small-hole nozzles arranged in a tangential direction are disposed, and the upper outer wall of the first-stage rotating fluidized bed chamber is provided with the tangent line An annular bellows in which a plurality of small orifice nozzles are disposed in fluid communication; and a hot air supply duct for feeding pressurized air is mounted on the windbox, and pressurized air to be fed into the bellows is used The plurality of small orifice nozzles arranged in the tangential direction are fed into the first-stage rotating fluidized bed chamber, and the heat medium forming the fluidized layer is rotated. Between the first rotating liquid layer chamber and the second gas rotating chamber, an incineration inlet, a neutralizer inlet, a heat medium circulation port and a burner are disposed, and the incineration, neutralization is adopted. And a heat medium is introduced into the fluid layer and rotated and raised into the second gas rotating chamber; and a plurality of small orifice nozzles are disposed on the inner wall of the upper portion of the second gas rotating chamber And an annular wind box that is in fluid communication with the small hole nozzle is disposed on an outer wall of the upper portion of the second gas rotating chamber; and a hot air supply pipe for feeding pressurized air is installed in the wind box. The pressurized air sent into the bellows is sent to the second-stage gas rotating chamber through the small-hole nozzle, so that the combustion exhaust rising from the first-stage rotating fluidized bed chamber is further rotated. . An exhaust outlet pipe that is in fluid communication with the wet-wall type gas cooling chamber is provided in an upper portion of the gas combustion chamber, and a combustion gas and combustion fly ash are introduced into the wet-wall gas cooling chamber. In the wet-wall type gas cooling chamber, a furnace is disposed to cover the exhaust outlet pipe of the gas combustion chamber; and a cooling water inlet pipe is disposed at a central portion of the upper portion of the furnace The outer peripheral portion of the exhaust outlet pipe penetrates the wet-wall gas cooling outdoor wall and is provided for transmission. a high-pressure air inlet pipe for supplying high-pressure air, which is continuously and uniformly supplied with cooling water along the upper surface of the furnace, and is in contact with combustion exhaust gas and fly ash rising from the gas combustion chamber at a lower end of the furnace The cooling is performed, and a cooling water containing combustion exhaust gas and fly ash is stored in a space between the outer peripheral portion of the exhaust gas outlet pipe and the wet-wall gas cooling outdoor wall. Provided in the exhaust chamber: a process gas inlet pipe that introduces a process gas after collecting fly ash; a hot air inlet pipe for preventing white smoke; an exhaust pipe; and a ring at a lowermost portion of the exhaust pipe a bellows, and a plurality of small hole nozzles arranged in a tangential direction are disposed on the side plate of the exhaust pipe, and a hot air supply pipe for feeding pressurized air is disposed outside the exhaust pipe, and pressurized air is used from the hot air The air supply pipe is blown into the exhaust pipe from the small hole nozzle through the wind box to generate a swirling flow.

The wet ultrasonic dust collecting device preferably has an exhaust gas inlet pipe which has a square cross section and has a conical shape, a gas rectifying plate unit, a plurality of piezoelectric element vibration units, a smoke separator, and an exhaust gas outlet pipe. It has a square cross section and is conical.

The rotary air heat exchanger preferably has an exhaust gas inlet pipe having a square cross section and a conical shape, a diffusing gas pipe for removing the adhered coal dust by high-pressure air, a square-section expander, and a pipe The first rotating liquid layer chamber, the second gas rotating chamber and the exhaust chamber of the two-stage rotating fluidized bed incinerator are fed with hot air.

Preferably, the flow air heat exchanger has a duct provided in a lower portion of the rotary air heat exchanger and in fluid communication with the rotary air heat exchanger; and a diffusing duct that is removed by high-pressure air Coal dust; a square-section expander; a pipe that feeds hot air for generating a fluidized bed to the bottom of the two-stage rotating fluidized bed incinerator; and a pipe that exhausts the two-stage rotating fluidized bed incinerator Indoor exhaust gas; coal dust storage room; coal dust outlet pipe.

Moreover, the present invention provides a method of incinerating incineration using the above two-stage rotary fluidized bed incinerator system. The method is characterized in that the incineration is supplied to the heat medium which is rotated and raised from the first-stage rotating fluidized bed chamber from the incineration inlet, and the outside temperature of the swirling flow in the gas combustion chamber is maintained. At 850 ° C or higher, and maintaining the central axis temperature of the swirling flow at 1300 ° C or higher, the incineration is completely burned, and the neutralizing agent is introduced from the neutralizing agent inlet, so that the incineration product is also an acid gas. Neutralizing, and introducing combustion gas and fly ash generated by combustion of the incineration gas into the wet-wall gas cooling chamber from the exhaust gas outlet pipe of the gas combustion chamber, and the cooling water inlet pipe Cooling water is supplied, and water is continuously and uniformly supplied along the upper surface of the furnace, and the combustion exhaust gas and the fly ash are brought into contact with the cooling water, and the cooling water containing the combustion exhaust gas and the fly ash is stored in the exhaust gas outlet. a space between the outer peripheral portion of the tube and the wet-wall gas-cooling outdoor wall, and high-pressure air is supplied from the high-pressure air inlet pipe, and the combustion exhaust gas and the fly ash are mixed and drained. And discharging the residual combustion gas, and performing dust removal and heat exchange on the combustion gas discharged from the wet-wall gas cooling chamber, returning to the exhaust chamber, and rising into the exhaust cylinder to generate a swirling flow. The gas in the combustion gas is vaporized, and the heat energy recovered by the heat exchange of the combustion gas is utilized in the first rotating liquid layer chamber and the second stage The generation of the swirling flow of the gas rotating chamber and the exhaust cylinder and the formation of the fluid layer below the first-stage rotating fluidized bed chamber neutralize the combustion of the acid gas and suppress the re-synthesis of dioxins.

Further, the airflow containing the combustion exhaust gas and the combustion fly ash discharged from the exhaust gas outlet pipe provided at the upper side surface of the wet-wall type gas cooling chamber is preferably the aforementioned by the wet ultrasonic dust collecting device. The gas rectifying plate unit is homogenized, and the fine water droplets formed by the vibration of the 28 KHz/S front and rear acoustic wave regions generated by the vibrating unit of the plurality of piezoelectric elements absorb the combustion fly ash, are separated from the combustion exhaust gas, and utilize the aforementioned The mist separator removes the remaining water droplets in the combustion exhaust gas, and then sends the dust-removed combustion exhaust gas to the rotary air heat exchanger and the flow air heat exchanger, and after performing heat exchange, Introduced into the aforementioned exhaust chamber.

Usually, the formation process of dioxins in the incineration treatment system is considered to be such that unburned components or precursors that cannot be completely burned in the secondary combustion chamber are passed through the dust collecting device from the secondary combustion chamber. During the heat exchanger, the temperature. surroundings. Conditions such as a catalyst are just prepared and reacted with hydrogen chloride generated by combustion to form. In the formation reaction, there is (1) a heavy metal (particularly copper) in the coal dust forms a catalyst at an ambient temperature of 300 to 500 ° C, and a reaction path for synthesizing dioxins from unburned carbon or the like, and 2) Decomposition of precursor substances such as chlorophenol or chlorobenzene, followed by synthesis of a reaction path of dioxins. In particular, the synthesis reaction of (1) is called De NoVo Synthesis (de novo synthesis), and means a new synthesis from a substance having low correlation. The toxic dioxins are also known by their chemical structures, and are essentially the same as carbon monoxide (CO) or various hydrocarbons (HC), and can be considered as one type of unburned components. Therefore, for the dioxin-based suppression method in the incinerator, the high combustion temperature (Temperature), the sufficient residence time of the combustion gas (Time), and the good turbulent mixing of the unburned gas and air are the most. important. Therefore, if the balance of oxygen (O ₂ ) concentration is taken as a premise, and a good balance of these three factors is sought, most of the dioxin recombination can be suppressed. By simultaneously supplying the hydrogen chloride generated by the combustion to the neutralization treatment using quicklime (CaO) under the well-balanced combustion conditions in which these three elements are sought, stable and harmless calcium chloride (CaCl ₂ ) is produced. And water (H ₂ O). Even if a catalyst of heavy metals is present in the combustion exhaust gas, calcium chloride (CaCl ₂ ) and water (H ₂ O) hardly react, so that the automatic supply of the neutralizing agent can be improved by commensurate with the combustion exhaust gas. Inhibits the effect of dioxin resynthesis.

The fly ash and heavy metals in the combustion exhaust gas are absorbed by the cooling water of the wet-wall gas cooling chamber with the furnace provided in the upper part of the two-stage rotary fluidized bed type incinerator. The cooling water that absorbs fly ash and heavy metals is separated into treated water and sludge together with the drainage from the wet ultrasonic dust collecting device. The treated water is again circulated into the wet-wall gas cooling chamber and reused as cooling water. Thus, the amount of moisture in the combustion exhaust gas of the wet ultrasonic dust collecting device can be kept to a minimum, and the fly ash or the like can be prevented from adhering to the air heat exchanger. Therefore, the air heat exchanger can be disposed on the high temperature side of the combustion exhaust gas.

Further, in the combustion apparatus of the present invention, since the dust is collected by using water, it is also possible to solve the noise caused by the sound waves of the sound wave dust collecting device. Harmful problem.

Further, in the combustion apparatus of the present invention, white turbidity can be prevented by generating a swirling flow of white smoke of the combustion exhaust gas discharged into the atmosphere and mixing it with hot air.

The above and other objects, features and advantages of the present invention will become more <

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1A is a schematic cross-sectional view showing an incinerator of a main apparatus according to the present invention. The two-stage rotary fluidized bed incinerator 1 has a first-stage rotating fluidized bed chamber 1-1, a second-stage gas rotating chamber 1-2 in fluid communication with an upper portion of the first-stage rotating fluidized bed chamber 1-1, and a The gas combustion chamber 1-3 in which the upper portion of the two-stage gas rotating chamber 1-2 is in fluid communication and the wet-wall type gas cooling chamber 27 provided in the upper portion of the gas combustion chamber 1-3.

In the first-stage rotating fluidized bed chamber 1-1, a conical bottom plate n is provided, which is provided with a plurality of small-hole nozzles 3 and a heat medium take-out port 2; a bellows 4 which is disposed below the conical bottom plate n A hot air supply pipe 5 that feeds hot air k to the wind box 4. The conical bottom plate n is smoothly inclined in a meandering shape. A heat medium take-out port 2 is provided through the center of the conical bottom plate n and passing through the lowermost portion. A plurality of small orifice nozzles 3 are vertically arranged in a substantially entire range of the conical bottom plate n. These small orifice nozzles 3 communicate with the bellows 4 provided at the lower side of the conical bottom plate n. A heat medium a is filled above the conical bottom plate n. By using the hot air k fed from the hot air supply duct 5, through a plurality of The orifice nozzle 3 is ejected above the conical bottom plate n, and the heat medium a is blown to form a fluidized bed. The hot air k is supplied with air by a blower 76 with a muffler shown in FIG. 5, and after being exchanged by the air heat exchanger 75, is blown into the first-stage rotating fluidized bed chamber 1-1 through the small-hole nozzle 3. The pre-filled heat medium a is blown up to form a fluidized bed furnace.

In the upper inner wall of the first-stage rotating fluidized bed chamber 1-1, as shown in Fig. 2, a plurality of small-hole nozzles 6 having a tangential arrangement at an arbitrary angle are provided. On the upper outer wall of the first-stage rotating fluidized bed chamber 1-1, between the outer plate of the furnace main body 1 and the refractory material f, an annular wind is provided in fluid communication with a plurality of small-hole nozzles 6 arranged tangentially. Box 7. As shown in detail in Fig. 2, in the wind box 7, a hot air supply pipe 9 for feeding hot air k is attached to a part of the annular header 8 provided outside the furnace body 1. Between the annular header 8 and the bellows 7, a hot air supply pipe 10, an air brake 12, and a hot air supply pipe 11 are provided. The hot air k sent from the hot air supply pipe 9 is sent to the wind box 7 via the annular header 8, the hot air supply pipe 10, the air lock 12, and the hot air supply pipe 11. The hot air k sent to the wind box 7 is blown into the first-stage rotary fluidized bed chamber 1-1 by tangentially arranging a plurality of small-hole nozzles 6 to rotate the heat medium a forming the fluidized layer. A stable first section of the rotating fluid layer.

A burner 17 is provided between the first-stage rotating fluidized bed chamber 1-1 and the second-stage gas rotating chamber 1-2. At other positions on the same circumference as the mounting position of the burning burner 17, as shown in FIGS. 1A, 1B, 1C, and 1D, a solid incineration inlet 13 and a liquid incineration inlet are provided. 14, the hot media circulation port 15, the neutralization agent tilted obliquely downward The inlet 16 is such that the solid matter incineration b, the liquid incineration c, the heat medium a, and the neutralizing agent g are introduced into the fluidized layer and rotated, and rises into the second gas rotating chamber 1-2. Composition.

At the upper inner wall of the second stage gas rotating chamber 1-2, a small orifice nozzle 18 is provided. At the upper outer wall of the second-stage gas rotating chamber 1-2, an annular bellows 19 in fluid communication with the orifice nozzle 18 is provided. As shown in FIG. 3, in the bellows 19, a hot air supply pipe 21 to which hot air k is supplied is attached to a part of the annular header 20. Between the annular header 20 and the bellows 19, a hot air supply pipe 22, an air brake 24, and a hot air supply pipe 23 are provided. The hot air k sent from the hot air supply pipe 21 is sent to the wind box 19 via the annular header 20, the hot air supply pipe 22, the air lock 24, and the hot air supply pipe 23. The hot air k sent from the bellows 19 is blown into the second-stage gas rotating chamber 1-2 through the small-hole nozzle 18, so that the rotating fluid layer rising from the first-stage rotating fluidized bed chamber 1-1 is further Rotate to form a more robust second-stage rotating flow layer.

In the upper portion of the gas combustion chamber 1-3, a wet-wall gas cooling chamber 27 and an exhaust gas outlet pipe 25 in fluid communication therewith are provided, and the combustion gas h and the combustion fly ash i are introduced into the wet-wall gas cooling chamber 27 The composition.

A furnace 42 is disposed in the wet-wall type gas cooling chamber 27 to cover the exhaust outlet pipe 25 of the gas combustion chamber 1-3. A cooling water inlet pipe 40 is provided at a central portion of the upper surface of the furnace 42. A high-pressure air inlet pipe 41 for feeding high-pressure air is provided below the furnace 42 and at the outer peripheral portion of the exhaust gas outlet pipe 25 through the outer wall of the wet-wall gas cooling chamber 27. The cooling water 1 is continuously and evenly fed along the upper surface of the furnace 42 and is placed under the furnace 42 The end is cooled by contact with the combustion gas h and the combustion fly ash i rising from the gas combustion chamber 1-3, and the cooling water 1 containing the combustion gas h and the combustion fly ash i is stored in the exhaust outlet pipe 25. The outer peripheral portion and the outer wall of the wet-coin-type cooling chamber 27 are configured in a space.

The exhaust outlet pipe 28 of the wet-wall type gas cooling chamber 27 is coupled to the wet ultrasonic dust collecting device 72. The wet ultrasonic dust collecting device 72 has an exhaust gas inlet pipe 72a having a square cross section and having a conical shape, a gas rectifying plate unit 72b, a plurality of piezoelectric element vibration units 72c, a smoke separator 72d, and an exhaust gas outlet. Tube 72e is square in cross section and conical.

The wet ultrasonic dust collecting device 72 is connected to the rotary air heat exchanger 73 and the fluidized bed air heat exchanger 75 through a pipe.

The rotary air heat exchanger 73 has an exhaust gas inlet pipe 73a having a square cross section and a conical shape, and a diffusing gas pipe 78 for removing coal dust by high-pressure air; an expander 73b having a square cross section; and piping The first-stage rotating fluidized bed chamber 1-1, the second-stage gas rotating chamber 1-2, and the exhausting chamber 29 of the two-stage rotating fluidized bed incinerator send hot air k.

The flow air heat exchanger 75 has a duct 75a provided at a lower portion of the swirling air heat exchanger 73 and in fluid communication with the swirling air heat exchanger 73, and a diffusing duct 78 that removes adhering coal dust by using high-pressure air; a square-section expander 75b; a pipe that feeds hot air k for generating a fluidized bed at the bottom of the two-stage rotary fluidized bed incinerator; and a pipe that feeds the discharge chamber 29 of the two-stage rotary fluidized bed incinerator Gas j; coal dust storage chamber 79; dust outlet pipe 80. The combustion fly ash i conveyed from the wet-wall type gas cooling chamber 27 through the exhaust outlet pipe 28, due to the air flow from the air diffusing pipe 78, It is collected in the coal dust chamber 79 at the lower portion of the fluidized bed air heat exchanger 75.

Further, a pipe is connected to the rotary air heat exchanger 73 for rotating the hot air supply pipe 9 of the first-stage rotating fluidized bed chamber 1-1, the hot air supply pipe 21 of the second-stage gas rotating chamber 1-2, and the exhaust gas. The exhaust gas inlet pipe 30 below the chamber 29 is supplied with hot air k (200 ° C). Further, a pipe is connected to the fluidized bed air heat exchanger 75 for supplying hot air k (200 ° C) to the bellows 4 below the first-stage rotating fluidized bed chamber 1-1.

An exhaust chamber 29 is further provided above the wet-wall type gas cooling chamber 27. The exhaust chamber 29 is provided with an exhaust gas inlet pipe 30 for recirculating the exhaust gas j from which the fly ash is collected, a hot air inlet 31 for preventing white smoke, and an exhaust pipe 32. An annular bellows 33 is provided at the lowermost portion of the exhaust cylinder 32. In the wind box 33, as shown in FIG. 4, a hot air supply pipe 39 is attached to a part of the annular header 35 provided outside the exhaust pipe 32 for feeding the hot air k. Between the annular header 35 and the bellows 33, a hot air supply pipe 35, an air brake 38, and a hot air supply pipe 36 are provided. The hot air k sent from the hot air supply pipe 39 is sent to the wind box 33 via the annular header 33, the hot air supply pipe 36, the air brake 38, and the hot air supply pipe 37. The hot air k sent to the wind box 33 is blown into the exhaust cylinder 32 by tangentially arranging a plurality of small orifice nozzles 34, and is preferably mixed with the exhaust gas j that generates the swirling flow. The water vapor in the gas j is vaporized to prevent the formation of white smoke. The hot air inlet pipe 31 for preventing white smoke is provided at an arbitrary position at the same level as the exhaust inlet pipe 30 of the chamber 29. The hot air inlet pipe 31 for preventing white smoke is connected to a separately provided hot air generating device 85. The hot air generating device 85 has an oil burner 85a for mixing and burning the auxiliary fuel m and the pressurized air u. The raw combustion gas and the air t sucked from the side surface of the hot air generating device 85 generate hot air e which adjusts the gas temperature to 600 °C.

Next, a method of burning the incineration by the two-stage rotary fluidized bed type combustion furnace system of the present invention will be described.

The solid-state incineration material b is stored in a predetermined volume in the processing object storage box 43 shown in Fig. 5, and is moved to the input port of the compression shearing machine 46 by the electric cross-belt hoist 44 and the electric seat 45. The solid burned material b loaded in the compression shearing machine 46 is cut into a 50 mm square or less, and conveyed to the processing storage tank 48 by the first processing object transporter 47 shown in Fig. 5, and temporarily stored. Then, the second processing container 50 is transported by the second processing device 50 by the automatic cutting device 49, and is supplied to the first-stage rotating fluidized bed chamber by the solid-state incineration inlet 13 through the dust supply device 51. Within 1-1.

The liquid incineration c is temporarily stored in the liquid incineration storage tank 52. The residual oil p used for the heat adjustment of the liquid incineration c is temporarily stored in the residual oil storage tank 53. The liquid incineration c and the residual oil p are sent to the mixing tank 56 by the pump units 54 and 55, respectively, and the heat is adjusted. Then, the mixed liquid r of the liquid incineration c and the residual oil p is sent to the liquid incineration injection port 14 by the pump unit 57, and is carried out in the first-stage rotary fluidized bed chamber 1-1 by the mixing spray device 58. spray.

The incinerated material thus fed into the first-stage rotating fluidized bed chamber 1-1 is instantaneously dried and vaporized, and a part of the combustion is completed to complete the first-stage combustion process. At the same time, the incombustible material d is separated from the combustible component in the first-stage rotating fluidized bed chamber 1-1, and temporarily retained on the conical bottom plate n, and A part of the heat medium a is carried out together from the heat medium take-out port 2 to the outside of the furnace, sent to the classifier 59 shown in Fig. 5, and separated into the heat medium a and the incombustible material d in the classifier 59. The separated heat medium a is transported to the rotary feeder 61 by the heat medium circulation device 60 shown in Fig. 5 . The overflowed heat medium a is temporarily stored in the heat medium storage tank 62, and then sequentially returned to the heat medium circulation device 60, and from between the first stage rotating fluidized bed chamber 1-1 and the second gas rotating chamber 1-2 The heat medium circulation port 15 (see FIG. 1(C)) provided on the inner wall is quantitatively returned to the flow layer of the first-stage rotary fluidized bed chamber 1-1 and reused. On the other hand, the incombustible material d is sent to the incombustible storage tank 64 by the incombustible material conveyance machine 63 shown in FIG. 5, and is temporarily stored and then carried out of the system. In the present invention, since the heat medium a is always required to operate in a negative pressure state under the rated operation, it is also required to provide a seal (sand seal) between the incinerator and the outside air which are required to be airtight to the outside air.

The neutralizing agent g (CaO or the like) is introduced into the rotating fluidized bed in the first-stage rotating fluidized bed chamber 1-1, and the acid gas generated by the combustion of the solid incineration b and the liquid incineration c is, for example, Hydrogen chloride or the like is neutralized by a chemical reaction. The neutralizing agent g is stored in the neutralizer storage tank 65, and after being mixed with the pressurized air u that has passed through the dehumidifier 66, is quantitatively used by the quantitative cutting device 67 to utilize the hot air supply pipe 68 at a time. The agent input port 16 is put in. In the present invention, the neutralizing agent g is placed on a tornado flow (turbulent flow) of the pulsating fluidized bed, and the time of direct mixing with the combustion gas is increased, and an efficient neutralization reaction can be performed to exhibit dioxins. Inhibitory effect.

The burner 17 burns the auxiliary fuel m having a high calorific value such as heavy oil. The auxiliary combustion m is stored in the auxiliary combustion storage tank 69, and is supplied by the oil pump unit 70. The auxiliary fuel m is mixed with the high-pressure air o sent from the combustion blower 71 and burned. The heat medium a is ignited and burned in a rotating flow state, and when the temperature in the furnace rises to a predetermined temperature, the solid incineration b and the liquid incineration c are separately or simultaneously supplied to the first-stage rotating fluidized bed chamber 1-1. Inside. The burner 17 can be used to maintain the outside temperature of the tornado flow at 850 ° C or higher, thereby stabilizing the combustion of the solid incineration b and the liquid incineration c, and the energy of the tornado flow, even if the tornado flow The central shaft temperature is maintained above 1300 °C.

Hot air k (200 ° C) is supplied to the annular header 20, and the hot air k is supplied from the rotary blower 74 with a muffler shown in Fig. 5, and is exchanged by the rotary air heat exchanger 73. The hot air k is adjusted to an average oxygen concentration (air amount) by the air brake 24, and sent to the bellows 19, and then blown from each small hole nozzle 18 to the second gas swirling flow chamber 1-2 to form a first stage. The rotating flow (torn stream) generated by the rotating fluidized bed chamber 1-1 is more powerful in the second segment of the rotating flow.

The second stage of the swirling flow (the tornado flow) has the property of pulling the material outside the swirling flow toward the center of the swirling flow. This characteristic allows the combustion gas (acid gas) generated in the incinerator 1 to be pulled toward the center of the swirling flow, so that the corrosion of the refractory material f used for the inner wall surface of the incinerator 1 by the acid gas can be completely prevented, and the combustion can be elongated. The residence time of the gas in the furnace, and the temperature of the central portion of the swirling flow can be maintained at 1300 ° C or higher. In this way, the second rotating stream can substantially achieve neutralization of the acid gas, and The complete combustion of the solid incineration b and the liquid incineration c significantly inhibits the production of dioxins.

The solid-state incineration b and the liquid incineration c are rotated by the swirling flow generated by the second-stage gas rotating flow chamber 1-2, and are raised into the gas combustion chamber 1-3 for combustion. The combustion gas h and the combustion fly ash i after the completion of the combustion are discharged from the exhaust outlet pipe 25 provided at the top of the gas combustion chamber 1-3 of the furnace main body 1, and introduced into the gas cooling chamber (wet wall type) 27. At this time, the cooling water 1 is continuously and evenly sent out from the cooling water inlet pipe 40 provided at the center of the furnace 42, and is in contact with the rising combustion gas h and the combustion fly ash i. The rising combustion gas h and the combustion fly ash i are cooled to 500 to 400 ° C by contact with the cooling water 1, and the drainage containing the combustion fly ash i is stored in the exhaust outlet pipe 25 of the gas combustion chamber 1-3. The space between the outer peripheral portion and the outer wall of the wet-wall type gas cooling chamber 27 is. By supplying the high-pressure air o to the drainage water by the pressurized air inlet pipe 41 and mixing well, 50% or more of the combustion fly ash i can be uniformly suspended in the drainage water. The combustion gas h containing the remaining combustion fly ash i is cooled by the cooling water 1 to 500 to 400 ° C, and then discharged from the exhaust outlet pipe 28 provided at the upper side surface of the gas cooling chamber (wet wall type) 27. Further, it is preferable to provide a combustion gas emergency discharge port 26 at the top of the gas combustion chamber 1-3 to prevent an explosion accident due to unburned gas.

The combustion exhaust gas j containing the combustion fly ash i discharged from the exhaust outlet pipe 28 is sent to the wet ultrasonic dust collecting device 72 shown in Fig. 5 . The wet ultrasonic dust collecting device 72 collects fly ash containing heavy metals and separates them from the exhaust gas j. Preferably, after homogenization by the gas rectifying plate unit 72b, The fine water droplets formed by the vibration in the 28 kHz/S front and rear sound wave regions generated by the vibration unit 72c of the plurality of piezoelectric elements absorb the combustion fly ash and are separated from the combustion exhaust gas. The remaining water droplets in the combustion exhaust gas are removed by the mist separator 72d. In this way, the exhaust gas j from which the fly ash is separated and removed is sent to the rotary air heat exchanger 73 and the flow air heat exchanger 75. The exhaust gas j is heated by heat exchange with the air sent from the rotary blower 74 with a muffler in the rotary air heat exchanger 73 to form a hot air k for rotation (200 ° C). In the flow air heat exchanger 75, the exhaust gas j exchanges heat with the air sent from the flow blower 76 with a muffler to warm the air to form a hot air k for flow (200 ° C). The hot air k for flow is introduced from the bottom of the first-stage rotary flow chamber 1-1 through the piping and through the hot air supply pipe 5 and the wind box 4. The hot air k for rotation is introduced into the first-stage rotary flow chamber 1-1 through the hot air supply pipe 9 and the wind box 7 through the piping, and is introduced into the second-stage gas rotation chamber through the hot air supply pipe 21 and the wind box 19. In 1-2, the hot air supply pipe 36 and the wind box 33 are introduced into the exhaust pipe 32.

On the other hand, the exhaust gas j that has been heat-exchanged by the flow air heat exchanger 75 is sucked by the guide blower 77, and is exhausted from the exhaust gas introduction pipe 30 provided on the side surface of the lower portion of the exhaust chamber 29 via the pipe. It is introduced into the exhaust chamber 29. At the same time, the hot air e of 600 ° C from the hot air generating device 85 is introduced into the exhaust chamber 29 from the hot air inlet pipe 31 for preventing white smoke. In the exhaust chamber 29, the exhaust gas j and the hot air e (600 ° C) are sufficiently mixed and rise into the exhaust cylinder 32. In the exhaust pipe 32, hot air k (200 ° C) exchanged by the rotary air heat exchanger 73 is introduced as a swirling flow. It is sufficiently mixed with the exhaust gas j and the hot air e. Thus, the water vapor in the exhaust gas j is vaporized by the hot air e and k, so that the generation of white smoke can be prevented. The exhaust gas containing no dioxin or the like after the treatment is discharged from the top of the exhaust cylinder 32 to the outside of the system.

On the other hand, the combustion fly ash i carried by the exhaust gas j introduced into the rotary air heat exchanger 73 and the flow air heat exchanger 75 may adhere to the heat exchangers 73 and 75. These adhered coal dust (combustion fly ash) is intermittently introduced into the air from the upper portion of the heat exchangers 73 and 75, and is stored in the coal dust chamber 79 provided in the lower portion of the flow air heat exchanger 75. Then, it is transported to the humidifier 82 via the double damper 80 by the fly ash conveyor 81 to prevent scattering, and is temporarily stored in the ash tank 83 and then carried out of the system.

The water discharge q generated in the gas cooling chamber (wet wall type) 27 and the wet ultrasonic dust collecting device 72 is treated by a coagulation sedimentation type drainage treatment device (not shown).

As described above, in the incineration treatment system using the two-stage rotary fluidized bed type incinerator of the present invention as a main unit, a swirling flow (torn flow) is generated in the incinerator. The characteristics of the two-stage rotating fluidized bed incinerator can be fully utilized, that is, the material existing on the outer side of the swirling flow is attracted to the central axis of the swirling flow, so that the outer temperature of the rotating flow is maintained above 850 ° C, continuously Stable combustion is performed, and the energy of the swirling flow, that is, the central axis temperature of the swirling flow, is maintained at 1300 ° C or higher. Moreover, the residence time of the combustion gas in the furnace can be greatly extended, and substantially complete combustion of 99.9999% can be achieved. Therefore, almost no unburned carbon is contained in the combustion exhaust gas. The neutralization reaction efficiency of the acid gas (hydrogen chloride) generated by combustion is also good, and the re-synthesis of dioxins can be prevented. Moreover, since the wet-wall type gas cooling chamber with the furnace is provided in the upper portion of the two-stage rotary fluidized bed type incinerator, the cooling water can absorb 50% or more of the suspended suspended matter in the combustion exhaust gas (fly ash, etc.) The treatment is performed by the aggregating sediment type drainage treatment device, so that the amount of water contained in the combustion exhaust gas can be kept to a minimum. Further, since the solid content is reduced from the combustion exhaust gas in the wet-wall type gas cooling chamber, and the wet ultrasonic dust collecting device having high dust collecting efficiency is used, the solid content (fly ash) in the combustion exhaust gas can be abruptly reduced. An air heat exchanger can be disposed on the high temperature side of the combustion exhaust gas. In this way, the flow layer and the swirling flow can be generated again by utilizing the heat energy generated from the incinerator. Further, since the exhaust chamber and the exhaust cylinder generate a swirling flow of hot air, the steam of the combustion exhaust gas discharged into the atmosphere can be vaporized to prevent white turbidity. As a result, construction can be significantly reduced. Repair costs and operating costs. The mainstream method of the conventional incineration treatment system is to adsorb the dioxin accumulated in the lower part of the furnace and the dioxin in the combustion fly ash on the activated carbon, mix it, and melt it by using a melting furnace and gasification. The furnace directly burns and melts the waste. Even in a direct-melting melt gasification melting furnace, dioxins are always mixed into the combustion exhaust gas, so it is necessary to continuously treat the fly ash and the substance adsorbed on the activated carbon, which requires a huge construction. Fees and operating costs.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application attached.

1‧‧‧ furnace body

1-1‧‧‧First Rotating Flow Chamber

1-2‧‧‧Second section gas rotating chamber

1-3‧‧‧ gas combustion chamber

2‧‧‧There is a hot media export

3‧‧‧ small hole nozzle

4‧‧‧ bellows

5‧‧‧hot air supply pipe

6‧‧‧ small hole nozzle

7‧‧‧ bellows

8‧‧‧Circular header

9, 10, 11‧‧‧ hot air duct

12‧‧‧airlock (damper)

13‧‧‧ Solid incineration inlet

14‧‧‧ Liquid incineration inlet

15‧‧‧Hot media circulation

16‧‧‧Neutralizer input

17‧‧‧burner

18‧‧‧ small hole nozzle

19‧‧‧ bellows

20‧‧‧Circular header

21, 22, 23‧‧‧ hot air duct

24‧‧‧ air lock

25‧‧‧Exhaust outlet pipe

26‧‧‧Combustion gas emergency discharge

27‧‧‧ gas cooling chamber (wet wall type)

28‧‧‧Exhaust outlet pipe

29‧‧‧Exhaust chamber

30‧‧‧Exhaust inlet pipe

31‧‧‧Hot air inlet pipe for anti-white smoke

32‧‧‧Exhaust

33‧‧‧ bellows

34‧‧‧ small hole nozzle

35‧‧‧Circular header

36, 37‧‧‧ hot air supply pipe

38‧‧‧ air lock

39‧‧‧Hot air supply pipe

40‧‧‧Cooling water inlet pipe

41‧‧‧Pressure air inlet pipe

42‧‧‧ furnace

43‧‧‧Processing storage box

44‧‧‧Electric transverse hoist

45‧‧‧Electric seat (block)

46‧‧‧Compressed shearing machine

47‧‧‧First handling object handler

48‧‧‧Processing storage tank

49‧‧‧Automatic cutting device

50‧‧‧Second handling agent

51‧‧‧dust supply device

52‧‧‧Liquid incineration storage tank

53‧‧‧ Residual oil storage tank

54, 55‧‧‧ pump unit

56‧‧‧ mixing tank

57‧‧‧ pump unit

58‧‧‧ mixed liquid spray device

59‧‧‧ classifier

60‧‧‧Thermal media circulation device

61‧‧‧Rotary feeder

62‧‧‧Hot media storage tank

63‧‧‧Incombustible goods handler

64‧‧‧Incombustible storage tank

65‧‧‧ Neutralizer storage tank

66‧‧‧Dehumidifier

67‧‧‧Quantitative cutting device

68‧‧‧Hot air supply duct

69‧‧‧Auxiliary combustion storage tank

70‧‧‧ small hole nozzle

71‧‧‧Combustion blower

72‧‧‧ Wet ultrasonic dust collector

72a‧‧‧Exhaust inlet pipe

72b‧‧‧Gas rectifying plate unit

72c‧‧‧Vibration unit

72d‧‧‧Smoke separator

72e‧‧‧Exhaust outlet pipe

73‧‧‧Rotary air heat exchanger

73a‧‧‧Exhaust inlet pipe

73b‧‧‧Expander

74‧‧‧Rotary blower

75‧‧‧Flow air heat exchanger

75a‧‧‧ pipeline

75b‧‧‧Expander

76‧‧‧Flower blower

77‧‧‧Guided blower

78‧‧‧Distribution tube

79‧‧‧dust chamber

80‧‧‧Double airlock

81‧‧‧ fly ash conveyor

82‧‧‧Humidifier

83‧‧‧ Gray cabin

84‧‧‧Air compressor

85‧‧‧hot air generating device

85a‧‧‧Oil burner

a‧‧‧Hot media

B‧‧‧solid incineration

C‧‧‧ Liquid incineration

d‧‧‧Incombustibles

E‧‧‧ hot air

f‧‧‧Refractory

G‧‧‧ neutralizing agent

H‧‧‧ combustion gases

I‧‧‧ burning fly ash

j‧‧‧Exhaust

K‧‧‧hot air

l‧‧‧Cooling water (treated water)

m‧‧‧Auxiliary fuel

n‧‧‧Conical bottom plate

o‧‧‧High pressure air

P‧‧‧resid oil

q‧‧‧Drainage

R‧‧‧ mixture

s‧‧‧New water

T‧‧‧air

U‧‧‧pressurized air

Fig. 1A is a schematic longitudinal cross-sectional view showing a two-stage rotary fluidized bed type incinerator according to the present invention, and Figs. 1B to 1D are each a longitudinal sectional view showing a part thereof.

Fig. 2 is a longitudinal sectional view showing the cutting taken along the line A-A in Fig. 1;

Fig. 3 is a plan view showing cutting by the line B-B of Fig. 1.

Fig. 4 is a plan view showing cutting by the line C-C in Fig. 1.

Figure 5 is a schematic system diagram of a two-stage rotary flow burner system of the present invention.

1‧‧‧ furnace body

1-1‧‧‧First Rotating Flow Chamber

1-2‧‧‧Second section gas rotating chamber

1-3‧‧‧ gas combustion chamber

2‧‧‧There is a hot media export

3‧‧‧ small hole nozzle

4‧‧‧ bellows

5‧‧‧hot air supply pipe

6‧‧‧ small hole nozzle

7‧‧‧ bellows

8‧‧‧Circular header

9, 10, 11‧‧‧ hot air duct

12‧‧‧airlock (damper)

13‧‧‧ Solid incineration inlet

14‧‧‧ Liquid incineration inlet

15‧‧‧Hot media circulation

16‧‧‧Neutralizer input

17‧‧‧burner

18‧‧‧ small hole nozzle

19‧‧‧ bellows

20‧‧‧Circular header

21, 22, 23‧‧‧ hot air duct

24‧‧‧ air lock

25‧‧‧Exhaust outlet pipe

26‧‧‧Combustion gas emergency discharge

27‧‧‧ gas cooling chamber (wet wall type)

28‧‧‧Exhaust outlet pipe

29‧‧‧Exhaust chamber

30‧‧‧Exhaust inlet pipe

31‧‧‧Hot air inlet pipe for anti-white smoke

32‧‧‧Exhaust

33‧‧‧ bellows

34‧‧‧ small hole nozzle

35‧‧‧Circular header

36, 37‧‧‧ hot air supply pipe

38‧‧‧ air lock

39‧‧‧Hot air supply pipe

40‧‧‧Cooling water inlet pipe

41‧‧‧Pressure air inlet pipe

42‧‧‧ furnace

a‧‧‧Hot media

B‧‧‧solid incineration

C‧‧‧ Liquid incineration

d‧‧‧Incombustibles

E‧‧‧ hot air

f‧‧‧Refractory

G‧‧‧ neutralizing agent

H‧‧‧ combustion gases

I‧‧‧ burning fly ash

j‧‧‧Exhaust

K‧‧‧hot air

l‧‧‧Cooling water (treated water)

m‧‧‧Auxiliary fuel

o‧‧‧High pressure air

Claims (2)

A two-stage rotary flow layer incinerator system comprising: a first section of a rotating fluidized bed chamber; a second section of a gas rotating chamber in fluid communication with an upper portion of the first section of the rotating fluidized bed chamber; a gas combustion chamber, and the first The upper portion of the two-stage gas rotating chamber is in fluid communication; the wet-wall gas cooling chamber is disposed at an upper portion of the gas combustion chamber; and the wet ultrasonic dust collecting device is in fluid communication with the upper side of the wet-wall gas cooling chamber; a rotary air heat exchanger and a flow air heat exchanger are in fluid communication with the wet ultrasonic dust collecting device; and an exhaust chamber having a dust removal device in the wet ultrasonic dust collecting device, and The combustion exhaust gas that has undergone heat exchange in the rotary air heat exchanger and the flow air heat exchanger is discharged to the exhaust cylinder outside the system; and the two-stage rotary fluidized bed incinerator system is used for the rotation The heat energy obtained by heat exchange between the air heat exchanger and the flow air heat exchanger is utilized in the first-stage rotating fluidized bed chamber, the second-stage gas rotating chamber, and the exhaust pipe a rotating flow; in the first rotating liquid layer chamber, a conical bottom plate provided with a plurality of small hole nozzles and a heat medium take-out port; a bellows disposed below the conical bottom plate; and a hot air supply pipe Pressurizing air is supplied to the bellows; and a heat medium is preliminarily filled on the conical bottom plate, and the pressurized air sent from the hot air supply pipe is passed through a plurality of small hole nozzles. a top surface of the conical bottom plate is ejected to blow the heat medium to form a fluid layer; and, in the upper inner wall of the first-stage rotating fluidized bed chamber, a plurality of small-hole nozzles arranged in a tangential direction are disposed. The first section of the upper outer wall of the rotating fluidized bed chamber is provided with a plurality of configurations arranged in the tangential direction An annular bellows in which the small orifice nozzles are in fluid communication; and a hot air supply duct for feeding pressurized air is installed in the bellows, and the pressurized air to be sent into the bellows is passed through the tangent line Locating a plurality of small orifice nozzles into the first rotating layer chamber to rotate the heat medium forming the fluid layer; rotating the fluid layer chamber and the second gas in the first section Between the chambers, an incineration inlet, a neutralizer inlet, a heat medium circulation port, and a burner are provided, and the incineration, the neutralizing agent, and the heat medium are put into the fluid layer and rotated. a structure that rises into the second-stage gas rotating chamber; further, a plurality of small-hole nozzles are disposed on an inner wall of the upper portion of the second-stage gas rotating chamber, and are disposed on an outer wall of the upper portion of the second-stage gas rotating chamber An annular bellows in which the orifice nozzle is in fluid communication; further, a hot air supply duct for feeding pressurized air is installed in the bellows, and the pressurized air sent into the bellows is passed through the small a nozzle of the hole is fed to the second gas swirl a combustion chamber in which a combustion exhaust gas rising from the first-stage rotating fluidized bed chamber is further rotated; and an exhaust gas outlet pipe in fluid communication with the wet-wall gas cooling chamber is disposed in an upper portion of the gas combustion chamber; Forming a combustion gas and combustion fly ash into the wet-wall gas cooling chamber; in the wet-wall gas cooling chamber, a furnace is disposed to cover the exhaust gas outlet pipe of the gas combustion chamber; a cooling water inlet pipe is disposed at a central portion of the upper surface of the furnace, and a humid wall-type gas cooling outdoor wall is provided below the furnace and at an outer peripheral portion of the exhaust gas outlet pipe to provide high-pressure air for conveying High pressure air inlet pipe, continuous along the top of the furnace And cooling water is supplied to the lower end of the furnace, and is cooled by contact with combustion exhaust gas and fly ash rising from the gas combustion chamber, and is disposed at an outer peripheral portion of the exhaust gas outlet pipe and the wet wall type. In the space between the gas cooling outdoor walls, a cooling water containing combustion exhaust gas and fly ash is stored; in the exhaust chamber, a combustion exhaust inlet pipe is provided, and the combustion exhaust gas after the fly ash is collected is introduced a hot air inlet pipe for preventing white smoke; an exhaust pipe; and an annular bellows disposed at a lowermost portion of the exhaust pipe, and a plurality of small hole nozzles arranged in a tangential direction are disposed on the side plate of the exhaust pipe, A hot air supply pipe for feeding pressurized air is disposed outside the exhaust pipe, and pressurized air is blown from the hot air supply pipe through the wind box, and then blown into the exhaust pipe from the small hole nozzle to generate a swirling flow. The wet ultrasonic dust collecting device has an exhaust gas inlet pipe having a square cross section and a conical shape, a gas rectifying plate unit, a plurality of piezoelectric element vibration units, a smoke separator, and an exhaust gas outlet pipe. Square-shaped and conical; The air heat exchanger has: an exhaust inlet pipe having a square cross section and a conical shape; a diffusing pipe that removes the attached coal dust by high-pressure air; a square-section expander; and a pipe to the second-stage rotary fluidized bed incinerator The first rotating liquid layer chamber, the second gas rotating chamber and the exhaust chamber are fed with hot air; the flow air heat exchanger has a pipe disposed at a lower portion of the rotating air heat exchanger and rotating Air communication with air heat exchanger; air diffusing tube, using high-pressure air to remove attached coal dust; square-section expander; piping, to the above two-stage rotating fluidized bed incinerator The bottom is fed with hot air for generating a fluid layer; the pipe is fed to the exhaust chamber of the two-stage rotating fluidized bed incinerator; the coal dust storage chamber; the coal dust outlet pipe. An incineration method for neutralizing combustion of acid gas and suppressing re-synthesis of dioxins, and a method for incinerating incineration by using a two-stage rotary fluidized bed incinerator system according to claim 1 of the patent application scope, From the incineration inlet, the incineration is supplied to the heat medium that has been rotated from the first-stage rotating fluidized bed chamber, and the outside temperature of the swirling flow in the gas combustion chamber is maintained at 850 ° C or higher, and the rotation is performed. The central axis temperature of the flow is maintained above 1300 ° C, the incineration is completely burned, and the neutralizing agent is introduced from the aforementioned neutralizing agent input port, so that the incineration product, that is, the acid gas, is neutralized, and The combustion gas and the fly ash generated by the combustion of the incineration gas are introduced into the wet-wall type gas cooling chamber by the exhaust gas outlet pipe of the gas combustion chamber, and the cooling water is supplied from the cooling water inlet pipe, and along the aforementioned The top of the furnace is continuously and evenly supplied with water, so that the combustion exhaust gas and the fly ash are brought into contact with the cooling water, and the cooling water containing the combustion exhaust gas and the fly ash is stored in the exhaust gas. a space between the outer peripheral portion of the mouth tube and the wet-wall type gas-cooling outdoor wall, and high-pressure air is sent from the high-pressure air inlet pipe, the combustion exhaust gas and the fly ash are mixed, drained, and the residual combustion is discharged. The gas is subjected to dust removal and heat exchange from the combustion gas discharged from the wet-wall gas cooling chamber, and then returned to the exhaust chamber and rises into the exhaust cylinder to generate a swirling flow to cause moisture in the combustion gas. gasification, And utilizing the heat energy recovered by the heat exchange of the combustion gas for the generation of the swirling flow of the first-stage rotating fluidized bed chamber, the second-stage gas rotating chamber, and the exhaust cylinder, and the first-stage rotating fluid layer Forming a fluidized bed below the chamber, the exhaust gas containing the combustion exhaust gas and the combustion fly ash discharged from the exhaust gas outlet pipe provided at an upper side surface of the wet-wall gas cooling chamber, using the wet ultrasonic set The gas rectifying plate unit of the dust device is homogenized, and the vibration of the ultrasonic wave region of 28 kHz/S generated by the vibration unit of the plurality of piezoelectric elements is used, and the fine water droplets formed absorb the combustion fly ash and are separated from the combustion exhaust gas. And removing the remaining water droplets in the combustion exhaust gas by the mist separator, and then feeding the dust-removed combustion exhaust gas to the rotary air heat exchanger and the flow air heat exchanger, and performing After the heat exchange, it is introduced into the aforementioned exhaust chamber.