Garbage pyrolysis treatment cyclone strong turbulence dust removal reflux heat utilization device

Abstract

The device for cyclone strong turbulence dust removal and reflux heat utilization of garbage pyrolysis treatment has a common air outlet between the pyrolysis chamber and the incineration chamber of the first combustion chamber, and the common air outlet is connected to the first flue gas passage; the second combustion chamber is composed of the first cyclone combustion chamber, the second cyclone combustion chamber and the baffle combustion chamber, and the air inlet pipe of the first cyclone combustion chamber is the first flue gas passage, and the first flue gas passage is connected to the common air outlet of the first combustion chamber; the third flue gas passage is provided behind the second cyclone exhaust pipe at the top of the second cyclone combustion chamber, and the third flue gas passage is connected to the first baffle combustion chamber; one end of the smoke recovery lead-out pipe is respectively connected to the first cyclone dust exhaust port at the bottom of the first cyclone combustion chamber and the second cyclone dust exhaust port of the second cyclone combustion chamber, and the other end is connected to the air inlet of the exhaust fan; one end of the waste heat delivery pipe is connected to the exhaust port of the exhaust fan, and the other end is connected to the incineration chamber. The present invention makes the secondary combustion of garbage pyrolysis treatment more thorough, simplifies the subsequent dust removal facilities, and stabilizes the energy supply capacity of the pyrolysis chamber.

Description

Technical Field

[0001] The invention relates to the technical field of domestic waste treatment. Background Art

[0002] Domestic waste treatment is a global problem. At present, domestic waste treatment mainly adopts technologies such as landfill, composting and incineration. According to analysis, both landfill and composting must occupy a large amount of land resources and cause environmental pollution. They are no longer suitable for promotion. Incineration of waste will produce a large amount of toxic and harmful substances, especially dioxins. In contrast, the use of pyrolysis for waste can not only inhibit the formation of dioxins, but also produce very little flue gas. It will no longer cause harm after a little purification. Therefore, pyrolysis of waste is the best technology for treating waste so far. In actual use, waste is treated by pyrolysis, preferably in a medium and high temperature environment above 500℃ by gasification. However, since the low calorific value of domestic waste is generally low, without auxiliary fuel and waste heat utilization, it is generally difficult to achieve real waste pyrolysis treatment. Even many similar waste pyrolysis treatment devices appear in a low-temperature pyrolysis mode, which greatly restricts the progress of waste pyrolysis technology. Summary of the invention

[0003] The present invention provides a cyclone strong turbulence dust removal and reflux heat utilization device for pyrolysis treatment of garbage, which introduces secondary combustion into the cyclone combustion chamber, utilizes the cyclone principle, makes the combustion airflow form strong turbulence and strong high-temperature combustion while removing the smoke and dust at the same time, and utilizes the peripheral dust removal principle of the cyclone, combined with the waste heat utilization technology, to recycle the removed smoke and dust containing high thermal energy, so that the combustion of the first combustion chamber incineration chamber is strengthened, so that the pyrolysis chamber obtains more thermal energy, ensures that the garbage pyrolysis environment is quickly increased to above 500°C, and makes the pyrolysis of the garbage achieve true medium and high temperature pyrolysis gasification.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a garbage pyrolysis treatment cyclone strong turbulence dust removal reflux heat utilization device includes a first combustion chamber and a second combustion chamber, a common air outlet 13 is provided between the pyrolysis chamber 9 and the incineration chamber 6 of the first combustion chamber, and the common air outlet 13 is connected to the first flue gas passage 14; the second combustion chamber is composed of a first cyclone combustion chamber 17, a second cyclone combustion chamber 41 and a baffle combustion chamber, the first cyclone combustion chamber 17 is composed of a first flue gas passage 14, a first cyclone barrel 73 located in the passage, a first cyclone dust exhaust port 72 at the bottom periphery and a first cyclone exhaust pipe 74 at the top, the air inlet pipe of the first cyclone combustion chamber 17 is the first flue gas passage 14, and the first flue gas passage 14 is connected to the common air outlet 13 of the first combustion chamber. The second cyclone combustion chamber 41 is composed of a second flue gas passage 16, a second cyclone barrel 54 located in the passage, a second cyclone dust exhaust port 77 at the bottom periphery and a second cyclone exhaust pipe 76 at the top. The second flue gas passage 16 is a tangential air inlet pipe of the second cyclone combustion chamber 41. A third flue gas passage 42 is arranged behind the second cyclone exhaust pipe 76 at the top of the second cyclone combustion chamber 41. The third flue gas passage 42 is connected to the first baffle combustion chamber 43. One end of the smoke recovery outlet pipe 55 is respectively connected to the first cyclone dust exhaust port 72 at the bottom of the first cyclone combustion chamber and the second cyclone dust exhaust port 77 of the second cyclone combustion chamber, and the other end is connected to the air inlet of the exhaust fan. One end of the waste heat transport pipe 39 is connected to the exhaust port of the exhaust fan, and the other end is connected to the incineration chamber 6.

[0005] The first cyclone combustion chamber 17 and the second cyclone combustion chamber 41 are separated by a fire-resistant wall; a transition chamber is provided behind the first cyclone exhaust pipe 74 at the top of the first cyclone combustion chamber 17, and the transition chamber is provided with a transition chamber air outlet 75, which is the air inlet of the second flue gas aisle 16; the first flue gas aisle 14 is provided with a first secondary air inlet pipe 15, and the end of the second flue gas aisle 16 is provided with a second secondary air inlet pipe 59.

[0006] The waste heat utilization facility 56 includes a smoke recovery outlet pipe 55, an exhaust fan and a waste heat conveying pipe 39. The waste heat utilization facility 56 is installed in the space formed between the ash bin 3 at the bottom of the first combustion chamber and the first cyclone combustion bin 17 and the bottom refractory wall of the second cyclone combustion bin 41 of the second combustion chamber.

[0007] The first combustion chamber comprises an energy storage controllable pyrolysis chamber 9 and an incineration chamber 6 from top to bottom. The first combustion chamber is surrounded by and on the top floor as energy storage walls 79. An energy storage flap 8 is installed inside the first combustion chamber. The space above the energy storage flap 8 in the first combustion chamber is the pyrolysis chamber 9. The space below the energy storage flap 8 in the first combustion chamber is the incineration chamber 6. A feed port 40 is provided at the top of the first combustion chamber. A common air outlet 13 is provided at the junction of the incineration chamber 6 and the pyrolysis chamber 9 on the first combustion chamber. The two energy storage flaps 8 are respectively installed on two symmetrically installed rotating shafts 18. The two ends of the two rotating shafts 18 are respectively installed on the energy storage wall 79. The rotating shaft 18 is connected to the flap cylinder 67.

[0008] The garbage pyrolysis treatment cyclone strong turbulence dust removal reflux heat utilization device of the present invention has the following advantages:

[0009] 1. The secondary combustion of waste pyrolysis treatment is more thorough, and the strong turbulence and high temperature combustion generated by the secondary combustion completely decompose the dioxins remaining in the mixed gas during the entire combustion process (about 3 seconds), thereby reducing the dioxin hazards generated by waste treatment to zero;

[0010] 2. The smoke and dust carried in the mixed combustible gas flowing from the first combustion chamber will be removed in large quantities during the cyclonic combustion in the cyclone combustion chamber, which plays a primary dust removal role for the overall flue gas dust removal and simplifies the subsequent dust removal facilities;

[0011] 3. The smoke gas containing high-temperature heat energy removed from the mixed flue gas is recycled and utilized. The reflux rate of this high-heat energy smoke gas can also be controlled by frequency conversion, thereby enhancing the combustion stability of the residue in the first combustion chamber, and indirectly stabilizing the energy supply capacity of the pyrolysis chamber, thus ensuring the normal operation of the garbage pyrolysis treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the main structural diagram of the vehicle-mounted mobile domestic waste pyrolysis treatment station.

[0013] Figure 2 This is the right view structural diagram of the vehicle-mounted mobile domestic waste pyrolysis treatment station.

[0014] Figure 3 This is a top-down structural diagram of a vehicle-mounted mobile domestic waste pyrolysis treatment station.

[0015] Figure 4 Figure 3 TT cross-sectional structure diagram.

[0016] Figure 5 Figure 3 QQ cross-section structure diagram.

[0017] Figure 6 Figure 3 Partial cross-sectional structure diagram of PP.

[0018] In the figure: slag outlet 1; spiral slag discharger 2; ash slag bin 3; tilting grate 4; annular air duct 5; incineration bin 6; high temperature resistant energy storage flap 8; energy storage controllable pyrolysis bin 9; outer wall steel plate 10; temperature sensor 11; heat pipe row 12; public air outlet 13; first flue gas passage 14; second secondary air inlet pipe 15; second flue gas passage 16; first cyclone combustion bin 17; rotating shaft 18; emergency bypass valve 21; primary air inlet pipe 37; primary air outlet pipe row 38; waste heat conveying pipe 3 9; feed port 40; second cyclone combustion chamber 41; third flue gas passage 42; first baffle combustion chamber 43; loading port 45; second baffle combustion chamber 47; third baffle combustion chamber 49; third baffle combustion chamber exhaust port 51; fourth flue gas passage 52; second cyclone barrel 54; smoke dust recovery outlet pipe 55; waste heat utilization facility 56; second secondary air inlet 59; push rod 66; flap cylinder 67; grate connecting rod mechanism 68; grate cylinder 69; first cyclone dust exhaust port 72; first cyclone barrel 73; first cyclone exhaust pipe 74; transition chamber air outlet 75; second cyclone exhaust pipe 76; second cyclone dust exhaust port 77; energy storage wall 79; castable energy storage ball combination layer 80; aluminum silicate insulation layer 81; ceramic fiber insulation board 82. DETAILED DESCRIPTION

[0019] The garbage pyrolysis treatment cyclone strong turbulence dust removal reflux heat utilization device of the present invention is as follows Figure 1-4 As shown, it includes the first combustion chamber, the second combustion chamber and the waste heat utilization facility of the domestic waste pyrolysis treatment station. The energy storage controllable heat chamber 9 and the incineration chamber 6 of the first combustion chamber are provided with a common air outlet 13, and the common air outlet 13 is connected to the first flue gas passage 14; the air outlet of the first cyclone combustion chamber 17 of the second combustion chamber is connected to the second flue gas passage 16; the first cyclone combustion chamber and the second cyclone combustion chamber are provided with the first cyclone dust exhaust port 72 and the second cyclone dust exhaust port 77 at the bottom, and the removed smoke and dust gas is introduced into the waste heat utilization facility 56 through the smoke and dust gas recovery and outlet pipe 55 and returned to the first combustion chamber incineration chamber 6.

[0020] The first combustion chamber includes a pyrolysis chamber 9 and an incineration chamber 6, an energy storage wall 79, a heat pipe row 12 and a high-temperature energy storage flap 8, and a matching hydraulic flip mechanism. The first combustion chamber energy storage controllable pyrolysis chamber 9 and the incineration chamber 6 are the main chambers of the mobile domestic waste pyrolysis treatment station for pyrolysis treatment of domestic waste, wherein the energy storage controllable pyrolysis chamber 9 is located in the upper layer of the combustion chamber, and the incineration chamber 6 is located in the middle layer of the combustion chamber, and below the energy storage controllable pyrolysis chamber 9. The energy storage controllable pyrolysis chamber 9 has a hexahedral square structure, wherein the surrounding and top layers are energy storage walls 79, and the middle part is a high-temperature energy storage flap 8 equipped with a rotating shaft and rotatable around the axis; a feed port 40 is provided at the upper right corner of the right side of the top layer, and a common air outlet 13 is provided at the junction of the lower left corner and the upper left corner of the lower incineration chamber, and the common air outlet is connected to the first cyclone combustion chamber 17 of the second combustion chamber through the first flue gas passage 14. The energy storage wall 79 is composed of ceramic fiber insulation board 82, aluminum silicate insulation layer 81 and castable energy storage ball combination layer 80 from outside to inside, forming an energy storage refractory heat insulation wall integrating refractory, energy storage, heat insulation and heat preservation. Heat pipe rows 12 are embedded in the energy storage wall 79 around the energy storage controllable pyrolysis bin 9. The heat pipe rows 12 are evenly arranged vertically and fixedly buried in the wall surface of the energy storage wall refractory castable energy storage ball combination layer 80, with the bottom end in the upper area of ​​the incineration bin 6 wall and the upper end extending to the middle area of ​​the energy storage controllable pyrolysis bin 9 wall. The middle part of the energy storage controllable pyrolysis chamber 9 is composed of at least two high temperature resistant energy storage flaps 8, each of which is equipped with a rotating shaft and can rotate around the shaft. The two ends of the rotating shaft are mounted on the bearing seats fixed in the two walls. A push rod 66 is installed at one end of the shaft extension. The push rod is connected to the flap oil cylinder 67 through an axle pin to form a turning mechanism controlled by the oil cylinder. The high temperature resistant energy storage flap 8 is made of high temperature resistant metal plates and rotating shafts, and energy storage materials such as energy storage balls are embedded inside. After the overall formation, it has the ability to store and release energy. By adjusting the turning angle of the high temperature resistant energy storage flap 8, two operating conditions can be realized: one is the pyrolysis condition, in which the high temperature resistant energy storage flap 8 is adjusted to the 0° level. The high temperature resistant energy storage flap 8, together with the surrounding walls and the top wall, forms a fully enclosed chamber. During operation, the feed port is closed, the chamber is in a negative pressure environment, and the air outlet cannot flow in reverse. The airflow in the incineration chamber 6 cannot bypass the energy storage controllable pyrolysis chamber 9 due to the negative pressure. At this time, the pyrolysis chamber forms a closed and oxygen-free environment, which is suitable for the pyrolysis reaction of garbage. The gas generated by pyrolysis flows out from the common outlet 13; the second is the unloading condition, in which the high temperature resistant energy storage flap 8 is adjusted to close to 70-90°, and the energy storage controllable pyrolysis chamber 9 is directly connected with the lower incineration chamber 6. The residue in the energy storage controllable pyrolysis chamber 9 loses support and is dumped into the incineration chamber 6. At this time, the pyrolysis condition is converted into a rapid unloading condition. By switching between the above two conditions, continuous and stable pyrolysis treatment of domestic garbage can be achieved in the pyrolysis treatment station. The lower part of the incineration bin 6 is the ash bin 3. A tipping grate 4 is provided between the incineration bin 6 and the slag bin 3. The tipping grate 4 is installed on a shaft, and the shaft is connected to the grate cylinder 69 through a grate connecting rod mechanism 68. A spiral slag discharger 2 is installed in the ash bin 3.

[0021] The first combustion chamber is composed of an energy storage controllable pyrolysis bin 9, an incineration bin 6 and an ash bin 3 from top to bottom; the energy storage controllable pyrolysis bin 9 is located in the upper layer of the first combustion chamber A, and is composed of surrounding walls, a top wall and a high-temperature resistant energy storage flap 8 with adjustable angles on the bottom. Under the garbage pyrolysis working condition, the interior of the garbage pyrolysis treatment station is in a negative pressure state, and the pyrolysis bin forms a closed anaerobic environment; the incineration bin 6 is located in the lower layer of the energy storage controllable pyrolysis bin 9, and is composed of surrounding walls and a flip grate 4 with adjustable angles on the bottom. The surrounding walls are provided with primary air inlet pipes 37, annular air ducts 5, primary air outlet pipes 38 and other primary air facilities to supply air oxygen for material combustion; a feed port 40 is provided at the upper right corner of the longitudinal right end face of the energy storage controllable pyrolysis bin 9, and a common air outlet 13 is provided at the upper and lower junctions of the lower left corner and the upper left corner of the incineration bin 6, collectively referred to as the common air outlet 13.

[0022] The second combustion chamber B is composed of a first cyclone combustion chamber 17, a second cyclone combustion chamber 41, a first deflection combustion chamber, a second deflection combustion chamber and a third deflection combustion chamber. The first cyclone combustion chamber 17 is composed of a first passage 14 for tangentially entering flue gas, a first cyclone barrel 73, a first cyclone dust exhaust port 72 at the bottom periphery and a first cyclone exhaust pipe 74 at the top; the second cyclone combustion chamber 41 is composed of a second passage 16 for tangentially entering flue gas, a second cyclone barrel 54, a second cyclone dust exhaust port 77 at the bottom periphery and a second cyclone exhaust pipe 76 at the top; the first cyclone combustion chamber 17 and the second cyclone combustion chamber 41 are located at the longitudinal right end of the first combustion chamber, separated by a fireproof wall in the middle; the inlet of the first cyclone combustion chamber 17 The air duct is the first flue gas passage 14, and is connected to the common air outlet 13 of the first combustion chamber; a transition chamber is provided behind the first cyclone exhaust pipe 74 at the top of the first cyclone combustion chamber 17, and the transition chamber is provided with a flue gas outlet, called the transition chamber outlet 75; the transition chamber outlet 75 is the air inlet of the second flue gas passage 16, and the second flue gas passage 16 is the tangential air inlet pipe of the second cyclone combustion chamber; a third flue gas passage 42 is provided behind the second cyclone exhaust pipe 76 at the top of the second cyclone combustion chamber 41, and the third flue gas passage 42 is connected to the first baffle combustion chamber 43; a first secondary air inlet pipe 15 is provided in the first flue gas passage 14, and a second secondary air inlet pipe 59 is provided at the end of the second flue gas passage 16.

[0023] The waste heat utilization facility 56 is installed in the space formed between the ash bin 3 of the first combustion chamber A and the refractory wall at the bottom of the first and second cyclone combustion bins of the second combustion chamber. The facility includes a smoke gas recovery and outlet pipe 55, an exhaust fan and a waste heat delivery pipe 39, wherein one end of the smoke gas recovery and outlet pipe 55 is respectively connected to the first cyclone dust exhaust port 72 at the bottom of the first cyclone combustion bin and the second cyclone dust exhaust port 77 of the second cyclone combustion bin, and the other end is connected to the air inlet of the exhaust fan; one end of the waste heat delivery pipe 39 is connected to the exhaust port of the exhaust fan, and the other end extends vertically in the refractory wall to the middle and upper part of the incineration bin 6, and the air outlet extends into the incineration bin 6 and tilts downward.

[0024] When operating, the steps are as follows:

[0025] (1) After the domestic waste enters the energy storage controllable pyrolysis chamber, under the pyrolysis condition, the waste obtains the heat energy released by the energy storage wall, superconducting heat pipe row, energy storage flap, and the heat radiation generated by the incineration chamber to enter the pyrolysis reaction, producing CO, H2, CH4, C m H n The combustible gas flows into the common air outlet under the action of negative pressure. At the same time, the pyrolysis residues of the garbage in the incineration bin also undergo combustion reaction under the condition of the air oxygen supplied by the primary air inlet pipe, the annular air duct and the primary air outlet pipe of the primary air facility. The high-temperature flue gas generated also flows into the common air outlet. The two air flows form a mixed combustible gas with a temperature of more than 700°C at the common air outlet and enter the first flue gas aisle.

[0026] (2) In the first flue gas passage, air is introduced by adjusting the valve plate of the first secondary air inlet pipe. The introduced air is mixed with the mixed combustible gas again, and the mixed combustible gas is ignited. The burning airflow enters the first cyclone combustion chamber from the tangential direction at a set flow rate of 14-18m / s. As the combustion airflow rotates and changes direction, the mixed gas is fully mixed and the combustion reaction tends to be complete. When the rotating airflow touches the bottom of the chamber from top to bottom, the light combustion airflow tends to the middle of the cyclone tube and rotates in the opposite direction upward after touching the bottom, and flows out from the first cyclone exhaust pipe at the top, while the heavy smoke and dust gas close to the cyclone tube wall is thrown out from the first cyclone dust outlet around the bottom of the chamber along the tangential direction and enters the smoke and dust gas recovery outlet pipe;

[0027] (3) In the first cyclone combustion chamber, after the burning airflow flows out from the first cyclone exhaust pipe, it enters the transition chamber and flows out from the transition chamber outlet in the opposite direction, and then enters the second flue gas passage. At this time, the mixed airflow obtains the air introduced by the second secondary air inlet pipe again, and the mixed airflow continues to burn. The burning airflow completes the action of entering the second cyclone combustion chamber along the similar path as entering the first cyclone combustion chamber. The light combustion airflow is discharged from the second cyclone exhaust pipe on the top of the second cyclone combustion chamber, and flows into the first baffle combustion chamber through the third passage. The heavy smoke and dust gas is also thrown out from the second cyclone dust exhaust port on the periphery along the tangent of the chamber bottom and enters the smoke and dust gas recovery outlet pipe;

[0028] (4) The two streams of smoke gas discharged from the dust exhaust ports around the bottom of the first and second cyclone combustion chambers have high thermal energy and are sent to the exhaust fan through the smoke gas recovery outlet pipe. The exhaust fan sends it into the waste heat transport pipe and returns it to the incineration chamber of the first combustion chamber A, thereby achieving three purposes: first, to achieve strong turbulence of the combustion airflow so that the mixed gas can be fully burned; second, to make the combustion airflow produce a dust removal effect; third, to recycle the removed high-temperature smoke gas.

[0029] The present invention is described by way of embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present invention.

Claims

1. A cyclone strong turbulence dust removal and reflux heat utilization device for garbage pyrolysis treatment, characterized by: comprising a first combustion chamber and a second combustion chamber, The first combustion chamber comprises, from top to bottom, an energy storage controllable pyrolysis chamber (9) and an incineration chamber (6); the first combustion chamber is surrounded by and on a top floor as an energy storage wall (79); an energy storage flap (8) is installed inside the first combustion chamber; the space above the energy storage flap (8) in the first combustion chamber is the pyrolysis chamber (9); the space below the energy storage flap (8) in the first combustion chamber is the incineration chamber (6); a feed inlet (40) is provided at the top of the first combustion chamber; a common air outlet (13) is provided at the junction of the incineration chamber (6) and the pyrolysis chamber (9); the two energy storage flaps (8) are respectively installed on two symmetrically installed rotating shafts (18); the two ends of the two rotating shafts (18) are respectively installed on the energy storage wall (79); the rotating shaft (18) is connected to the flap oil cylinder (67); the common air outlet ( 13) connected to the first flue gas passage (14), and adjusting the angle of the high temperature resistant energy storage flap (8), two operating conditions can be realized: one is the pyrolysis condition, the high temperature resistant energy storage flap (8) is adjusted to the 0° level, the high temperature resistant energy storage flap (8) together with the surrounding walls and the top wall forms a fully enclosed chamber, the feed inlet is closed during operation, the chamber is in a negative pressure environment, the air outlet cannot flow in reverse, and the airflow in the incineration chamber (6) is affected by the negative pressure and cannot bypass the energy storage controllable pyrolysis chamber (9), at this time, the pyrolysis chamber forms a closed oxygen-free environment, which is suitable for the pyrolysis reaction of the garbage, and the gas generated by the pyrolysis flows out from the common outlet (13); the second is the unloading condition, the high temperature resistant energy storage flap (8) is adjusted to 70°-90°, the energy storage controllable pyrolysis chamber (9) and the lower part are connected. The incineration bin (6) forms a straight passage, and the residue in the energy storage controllable pyrolysis bin (9) loses support and is dumped into the incineration bin (6), and the pyrolysis condition is converted into a rapid unloading condition at this time; the second combustion chamber is composed of a first cyclone combustion bin (17), a second cyclone combustion bin (41) and a baffle combustion bin, the first cyclone combustion bin (17) is composed of a first flue gas passage (14), a first cyclone barrel (73) located in the passage, a first cyclone dust exhaust port (72) at the bottom periphery and a first cyclone exhaust pipe (74) at the top, the air inlet pipe of the first cyclone combustion bin (17) is the first flue gas passage (14), and the first flue gas passage (14) is connected to the common air outlet (13) of the first combustion chamber; the second cyclone combustion bin (41) is composed of a second flue gas passage (16), a first cyclone barrel (73) located in the passage, a first cyclone dust exhaust port (72) at the bottom periphery and a first cyclone exhaust pipe (74) at the top The passageway is composed of a second cyclone barrel (54), a second cyclone dust exhaust port (77) at the bottom periphery, and a second cyclone exhaust pipe (76) at the top. The second flue gas passageway (16) is a tangential air inlet pipe of the second cyclone combustion chamber (41). A third flue gas passageway (42) is arranged behind the second cyclone exhaust pipe (76) at the top of the second cyclone combustion chamber (41). The third flue gas passageway (42) is connected to the first baffle combustion chamber (43). The first cyclone combustion chamber (17) and the second cyclone combustion chamber (41) are separated by a fireproof wall. A transition chamber is arranged behind the first cyclone exhaust pipe (74) at the top of the first cyclone combustion chamber (17). The transition chamber is provided with a transition chamber air outlet (75). The transition chamber air outlet (75) is the air inlet of the second flue gas passageway (16).The first flue gas passage (14) is provided with a first secondary air inlet pipe (15), and the end of the second flue gas passage (16) is provided with a second secondary air inlet pipe (59); one end of the flue gas recovery and outlet pipe (55) is respectively connected to the first cyclone dust exhaust port (72) at the bottom of the first cyclone combustion chamber and the second cyclone dust exhaust port (77) of the second cyclone combustion chamber, and the other end is connected to the air inlet of the exhaust fan; one end of the waste heat transport pipe (39) is connected to the exhaust port of the exhaust fan, and the other end is connected to the incineration chamber (6). ; 2. The garbage pyrolysis treatment cyclone strong turbulence dust removal reflux heat utilization device according to claim 1 is characterized by: The waste heat utilization facility (56) includes a smoke recovery outlet pipe (55), an exhaust fan, and a waste heat conveying pipe (39). The waste heat utilization facility (56) is installed in a space formed between the ash bin (3) at the bottom of the first combustion chamber and the first cyclone combustion chamber (17) and the bottom refractory wall of the second cyclone combustion chamber (41) of the second combustion chamber.

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