A kettle-type low-temperature continuous degradation device for fly ash dioxins

Abstract

The invention relates to a kettle-type fly ash dioxin low-temperature continuous degradation device, comprising a reactor and a screw conveyor, wherein a processing mechanism for degrading dioxins in fly ash is movably arranged inside the reactor, and a flip mechanism for improving the efficiency of preheating fly ash is movably arranged above the processing mechanism; when a fly ash block is squeezed off from the top of a guide pipe, it falls onto the inclined surface of a guide ring, so that the fly ash block is broken, thereby ensuring the efficiency of degrading dioxins inside the fly ash; oxygen is injected into the jet ring through an air inlet pipe, so that the oxygen sprayed from the output ends of a plurality of jet pipes blows away the fly ash on the inclined surface of the guide ring, thereby increasing the contact area between oxygen and fly ash, facilitating the oxidation of dioxins inside the fly ash, resulting in a change in its molecular structure, thereby making it unstable and easy to degrade; at the same time, the blown fly ash is more easily degraded by the heat radiation generated by an electric heater, thereby improving the efficiency of degrading dioxins inside the fly ash.

Description

Technical Field

[0001] The present invention relates to the technical field of dioxin degradation, in particular to a kettle-type fly ash dioxin low-temperature continuous degradation device. Background Art

[0002] Dioxins in fly ash refer to dioxin-like pollutants generated during the combustion process, particularly when burning solid waste. Dioxins in fly ash are primarily formed through the interaction of chlorides and organic matter in the fuel under high temperature and oxygen conditions. These dioxin-like pollutants can adhere to the surface of fly ash particles and be emitted into the atmosphere along with the fly ash. Due to their high toxicity and resistance to degradation, dioxins pose a potential threat to the environment and human health.

[0003] The existing method for degrading dioxins in fly ash is to decompose dioxins into relatively harmless substances through chemical reactions or biological degradation processes under relatively low temperature conditions in a reactor. However, the existing degradation process is short and inefficient, making it difficult to completely degrade dioxins in fly ash efficiently, which can easily affect the surrounding environment. At the same time, before degrading dioxins, the fly ash needs to be preheated by hot air from the reactor through a hot air reflux pipe. However, insufficient preheating time leads to poor preheating efficiency. Summary of the Invention

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that the degradation process is short and inefficient, making it difficult to completely degrade dioxins in fly ash and easily affecting the surrounding environment;

[0006] (2) How to solve the problem that fly ash needs to be preheated before dioxin degradation, but the preheating time is insufficient, resulting in poor preheating efficiency.

[0007] The objectives of the present invention can be achieved through the following technical solutions: a kettle-type fly ash dioxin low-temperature continuous degradation device, comprising a reactor and a screw conveyor, wherein a feed pipe is fixedly inserted on one side of the top of the reactor, and the input end of the feed pipe is connected to the output end of the screw conveyor; a hot air return pipe is fixedly inserted on the other side of the top of the reactor, and the output end of the hot air return pipe is connected to the screw conveyor, and a filter is fixedly installed on the input end of the hot air return pipe; a treatment mechanism for degrading dioxins in fly ash is movably provided inside the reactor, and a flip mechanism for improving the efficiency of preheating fly ash is movably provided above the treatment mechanism;

[0008] The processing mechanism includes a guide tube fixedly connected to the reactor through two brackets, a conveying screw is rotatably arranged inside the guide tube, and a blowing unit for blowing away fly ash is arranged in the middle of the outer wall of the guide tube. A driving motor is fixedly installed on the top of the reactor, and the output end of the driving motor movably passes through the reactor and is fixedly connected to the top end of the conveying screw.

[0009] A further technical improvement of the present invention is that: the blowing unit includes a guide ring fixedly connected to the guide tube, an air jet ring is fixedly embedded in the interior of the guide ring, and a plurality of air jet tubes are connected at equal angles on the upper side of the air jet ring, and the output ends of the plurality of air jet tubes extend out of the guide ring; by turning on the driving motor and the plurality of electric heaters, the conveying spiral rotates to transfer the fly ash in the reactor to the top of the guide tube, and when more fly ash reaches the top of the guide tube, the fly ash accumulated on the top of the guide tube will be squeezed out. Since the fly ash is easily adhered to form blocks when it is damp, when the fly ash blocks are removed from the top of the guide tube When squeezed out, it falls onto the inclined surface of the guide ring, breaking the fly ash blocks and ensuring the efficiency of degrading dioxins in the fly ash; the fallen fly ash will slide along the inclined surface of the guide ring, and oxygen will be injected into the jet ring through the air inlet pipe, so that the oxygen ejected from the output ends of several jet pipes will blow away the fly ash on the inclined surface of the guide ring, increasing the contact area between oxygen and fly ash, facilitating the oxidation of dioxins in the fly ash, resulting in changes in its molecular structure, thereby making it unstable and easy to degrade; at the same time, the blown fly ash is more easily degraded by the heat radiation generated by the electric heater, thereby improving the efficiency of degrading dioxins in the fly ash.

[0010] A further technical improvement of the present invention is that an air intake pipe is fixedly inserted into the bottom of the guide ring, the output end of the air intake pipe is connected to the jet ring, and the input end of the air intake pipe is fixedly passed through the reactor and is connected to the output end of the external oxygen supply device.

[0011] A further technical improvement of the present invention is that the top surface of the guide ring is an inclined surface, and the inclined surface faces the inner wall of the reactor.

[0012] A further technical improvement of the present invention is that the flipping mechanism includes a baffle plate rotatably connected to the reactor through a first pin shaft, one end of the baffle plate blocks the output end of the feed pipe, the top of the inner wall of the reactor is hinged with a driving cylinder for driving the baffle plate to flip, the other end of the baffle plate is fixedly connected to a fixing rod, and a shift rod is fixedly installed on the end of the fixing rod away from the baffle plate.

[0013] A further technical improvement of the present invention is that an L-shaped frame is provided on the reactor on one side of the baffle plate through a second pin shaft, a slide groove is provided on the top of the L-shaped frame, the slide groove is movably connected to the shift rod, and an air guide pipe is fixedly installed on the L-shaped frame, the input end position of the air guide pipe corresponds to the output end position of one of the jet pipes, and the output end position of the air guide pipe corresponds to the position of the filter screen; when the reactor degrades dioxins inside the fly ash, the protruding end of the driving cylinder is retracted to the shortest, the output end of the feed pipe is blocked by the baffle plate, and the fly ash is then put into the raw ash storage bin, and the fly ash enters the screw conveyor through the sealed air lock discharger, and is then conveyed by the screw conveyor The fly ash is slowly transported to the inside of the feed pipe, and at this time the heat in the reactor enters the screw conveyor through the hot air return pipe, preheating the fly ash in the screw conveyor and the feed pipe; when the dioxins in the fly ash in the reactor are completely degraded and discharged from the reactor, the extended end of the driving cylinder is extended to the longest, so that the baffle is separated from the output end of the feed pipe. At this time, the L-shaped frame is flipped by the lever, so that the input end of the air guide pipe is connected to the output end of one of the jet pipes. The output end of the air guide pipe faces the filter, and the airflow ejected from the jet pipe cleans up the fly ash accumulated on the filter to prevent it from clogging the hot air return pipe and affecting the preheating effect, thereby improving the efficiency of preheating the fly ash.

[0014] A further technical improvement of the present invention is that a first temperature sensor is fixedly inserted into the top of the reactor, and a second temperature sensor is fixedly inserted into the bottom of the reactor, a plurality of evenly distributed electric heaters are fixedly embedded in the inner wall of the reactor, and a third temperature sensor is fixedly inserted into the middle of the feed pipe.

[0015] A further technical improvement of the present invention is that the middle of the screw conveyor is connected to an exhaust pipe, and the middle of the exhaust pipe is fixedly installed with an oxygen content meter, which is a prior art.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When the present invention is in use, by turning on the driving motor and the plurality of electric heaters, the conveying screw rotates, and the fly ash in the reactor is transferred to the top of the guide tube. When more fly ash reaches the top of the guide tube, the fly ash accumulated on the top of the guide tube will be squeezed out. Since the fly ash is easily adhered to form blocks when it is damp, when the fly ash blocks are squeezed out from the top of the guide tube, they fall onto the inclined surface of the guide ring, so that the fly ash blocks are broken, thereby ensuring the efficiency of degrading dioxins in the fly ash; the fallen fly ash will slide along the inclined surface of the guide ring, and oxygen will be injected into the jet ring through the air inlet pipe, so that the oxygen ejected from the output ends of the plurality of jet pipes will blow away the fly ash on the inclined surface of the guide ring, thereby increasing the contact area between oxygen and fly ash, facilitating the oxidation of dioxins in the fly ash, resulting in changes in its molecular structure, thereby making it unstable and easy to degrade; at the same time, the blown fly ash is more easily degraded by the heat radiation generated by the electric heater, thereby improving the efficiency of degrading dioxins in the fly ash.

[0018] When the present invention is in use, when the reactor degrades dioxins in the fly ash, the extended end of the driving cylinder is retracted to the shortest, the output end of the feed pipe is blocked by the baffle, and the fly ash is then fed into the raw ash storage bin, and the fly ash enters the screw conveyor through the sealed air lock discharger, and then the fly ash is slowly transported to the inside of the feed pipe by the screw conveyor. At this time, the heat in the reactor enters the screw conveyor through the hot air return pipe, and preheats the fly ash in the screw conveyor and the feed pipe; when the dioxins in the fly ash in the reactor are completely degraded and discharged from the reactor, the extended end of the driving cylinder is extended to the longest, so that the baffle is separated from the output end of the feed pipe. At this time, the L-shaped frame is flipped by the lever, so that the input end of the air guide pipe is connected to the output end of one of the air jet pipes, and the output end of the air guide pipe faces the filter screen. The airflow ejected by the air jet pipe cleans up the fly ash accumulated on the filter screen, preventing it from clogging the hot air return pipe and affecting the preheating effect, thereby improving the efficiency of preheating the fly ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0021] Figure 2 It is a cross-sectional view of the processing mechanism structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0023] Figure 4 This is a schematic diagram of the structure of the flipping mechanism of the present invention;

[0024] Figure 5 It is a three-dimensional schematic diagram of the partial structure of the turning mechanism of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the screw conveyor of the present invention.

[0026] In the figure: 1. Exhaust pipe; 2. Hot air return pipe; 3. Feed pipe; 4. Drive motor; 5. First temperature sensor; 6. Turning mechanism; 7. Processing mechanism; 8. Reactor; 9. Electric heater; 10. Screw conveyor; 11. Sealed air lock discharger; 12. Raw ash storage bin; 13. Oxygen content meter; 14. Filter; 15. Third temperature sensor; 601. Drive cylinder; 602. Push rod; 603. Air guide pipe; 604. L-shaped frame; 605. Fixing rod; 606. Baffle; 701. Inlet pipe; 702. Guide pipe; 703. Conveying screw; 704. Bracket; 705. Blowing unit; 7051. Jet pipe; 7052. Guide ring; 7053. Jet ring. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1-6 As shown, a kettle-type fly ash dioxin low-temperature continuous degradation device includes a reactor 8 and a screw conveyor 10. A feed pipe 3 is fixedly inserted on one side of the top of the reactor 8, and the input end of the feed pipe 3 is connected to the output end of the screw conveyor 10. A hot air return pipe 2 is fixedly inserted on the other side of the top of the reactor 8, and the output end of the hot air return pipe 2 is connected to the screw conveyor 10. A filter screen 14 is fixedly installed on the input end of the hot air return pipe 2. A treatment mechanism 7 for degrading dioxins in fly ash is movably provided inside the reactor 8, and a turning mechanism 6 for improving the efficiency of preheating fly ash is movably provided above the treatment mechanism 7.

[0029] See also Figure 1-Figure 3 As shown, the above-mentioned processing mechanism 7 includes a guide tube 702 fixedly connected to the reactor 8 through two brackets 704, a conveying screw 703 is rotatably provided inside the guide tube 702, and a blowing unit 705 for blowing away fly ash is provided in the middle of the outer wall of the guide tube 702. A driving motor 4 is fixedly installed on the top of the reactor 8, and the output end of the driving motor 4 movably passes through the reactor 8 and is fixedly connected to the top of the conveying screw 703.

[0030] See also Figure 2 and Figure 3As shown, the above-mentioned blowing unit 705 includes a guide ring 7052 fixedly connected to the guide tube 702, the top surface of the guide ring 7052 is an inclined surface, the inclined surface faces the inner wall of the reactor 8, and a jet ring 7053 is fixedly embedded in the guide ring 7052. A plurality of jet tubes 7051 are connected at equal angles on the upper side of the jet ring 7053, and the output ends of the plurality of jet tubes 7051 extend out of the guide ring 7052. An air inlet pipe 701 is fixedly inserted at the bottom of the guide ring 7052, and the output end of the air inlet pipe 701 is connected to the jet ring 7053, and the input end of the air inlet pipe 701 is fixedly passed through the reactor 8 and is connected to the output end of the external oxygen supply device; by turning on the drive motor 4 and the plurality of electric heaters 9, the conveying screw 703 rotates to transfer the fly ash in the reactor 8 to the top of the guide tube 702. When more fly ash reaches After reaching the top of the guide tube 702, the fly ash accumulated on the top of the guide tube 702 will be squeezed out. Since the fly ash is easily stuck together when it gets damp, when the fly ash blocks are squeezed out from the top of the guide tube 702, they fall onto the inclined surface of the guide ring 7052, causing the fly ash blocks to break, thereby ensuring the efficiency of degrading dioxins inside the fly ash; the fallen fly ash will slide along the inclined surface of the guide ring 7052, and oxygen will be injected into the jet ring 7053 through the air inlet pipe 701, so that the oxygen ejected from the output ends of several jet tubes 7051 will blow away the fly ash on the inclined surface of the guide ring 7052, thereby increasing the contact area between oxygen and fly ash, facilitating the oxidation of dioxins inside the fly ash, resulting in changes in its molecular structure, thereby making it unstable and easy to degrade, and at the same time, the blown fly ash is more easily degraded by the heat radiation generated by the electric heater 9, thereby improving the efficiency of degrading dioxins inside the fly ash.

[0031] See also Figure 1 、 Figure 4 and Figure 5 As shown, the above-mentioned flipping mechanism 6 includes a baffle plate 606 rotatably connected to the reactor 8 through a first pin shaft, one end of the baffle plate 606 blocks the output end of the feed pipe 3, and the top of the inner wall of the reactor 8 is hinged with a driving cylinder 601 for driving the baffle plate 606 to flip, and the other end of the baffle plate 606 is fixedly connected to a fixing rod 605, and the end of the fixing rod 605 away from the baffle plate 606 is fixedly installed with a shift rod 602.

[0032] See also Figure 1 and Figure 4As shown, an L-shaped frame 604 is provided on the reactor 8 on one side of the baffle plate 606 through a second pin shaft, a slide groove is provided on the top of the L-shaped frame 604, and the slide groove is movably connected to the lever 602. An air guide tube 603 is also fixedly installed on the L-shaped frame 604, and the input end position of the air guide tube 603 corresponds to the output end position of one of the jet tubes 7051, and the output end position of the air guide tube 603 corresponds to the position of the filter screen 14; when the reactor 8 degrades the dioxins inside the fly ash, the protruding end of the driving cylinder 601 is retracted to the shortest, and the output end of the feed pipe 3 is blocked by the baffle plate 606, and then the fly ash is put into the raw ash storage bin 12, and the fly ash enters the screw conveyor 10 through the sealed air lock discharger 11, and then the fly ash is slowly transported by the screw conveyor 10 to the inside of the feed pipe 3, and at this time the heat in the reactor 8 enters the screw conveyor 10 through the hot air return pipe 2, preheating the fly ash in the screw conveyor 10 and the feed pipe 3; when the dioxins in the fly ash in the reactor 8 are completely degraded and discharged from the reactor 8, the extended end of the driving cylinder 601 is extended to the longest, so that the baffle 606 is separated from the output end of the feed pipe 3. At this time, the L-shaped frame 604 is driven to flip through the lever 602, so that the input end of the air guide pipe 603 is connected to the output end of one of the jet pipes 7051, and the output end of the air guide pipe 603 faces the filter 14. The airflow ejected from the jet pipe 7051 cleans up the fly ash accumulated on the filter 14 to prevent it from clogging the hot air return pipe 2 and affecting the preheating effect, thereby improving the efficiency of preheating the fly ash.

[0033] See also Figure 1 and Figure 6 As shown, a first temperature sensor 5 is fixedly inserted on the top of the above-mentioned reactor 8, and a second temperature sensor is fixedly inserted on the bottom of the reactor 8. Several evenly distributed electric heaters 9 are fixedly embedded on the inner wall of the reactor 8, and a third temperature sensor 15 is fixedly inserted in the middle of the feed pipe 3.

[0034] See also Figure 6 As shown, the middle of the screw conveyor 10 is connected to an exhaust pipe 1, and an oxygen content meter 13 is fixedly installed in the middle of the exhaust pipe 1. The oxygen content meter 13 is a prior art.

[0035] See also Figure 1 As shown, the input end of the screw conveyor 10 is fixedly connected to the raw ash storage bin 12 , and the output end of the raw ash storage bin 12 is fixedly installed with a sealed air-locking discharger 11 .

[0036] Working principle: When the present invention is in use, first, by turning on the driving motor 4 and a plurality of electric heaters 9, the conveying screw 703 rotates, and the fly ash in the reactor 8 is transferred to the top of the guide tube 702. When more fly ash reaches the top of the guide tube 702, the fly ash accumulated on the top of the guide tube 702 will be squeezed out. Since the fly ash is easily adhered to form blocks when it is damp, when the fly ash blocks are squeezed out from the top of the guide tube 702, they fall onto the inclined surface of the guide ring 7052, so that the fly ash blocks are broken, thereby ensuring the efficiency of degrading dioxins in the fly ash; the fallen fly ash will slide along the inclined surface of the guide ring 7052 and pass through the air inlet pipe 701 to the jet ring 7 Oxygen is injected into 053, so that the oxygen ejected from the output ends of the plurality of jet pipes 7051 blows away the fly ash on the inclined surface of the guide ring 7052, thereby increasing the contact area between oxygen and fly ash, facilitating the oxidation of dioxins in the fly ash, causing changes in its molecular structure, thereby making it unstable and easily degraded. At the same time, the blown fly ash is more easily degraded by the heat radiation generated by the electric heater 9, thereby improving the efficiency of degrading dioxins in the fly ash. The first temperature sensor 5 and the second temperature sensor are used to respectively measure whether the temperatures at the top and bottom of the inner wall of the reactor 8 meet the standards; in order to ensure the continuity of the degradation of dioxins in the fly ash, the reactor 8 is used to degrade the fly ash inside. When the dioxins are detected, the extended end of the driving cylinder 601 is retracted to the shortest, the output end of the feed pipe 3 is blocked by the baffle 606, and the fly ash is put into the raw ash storage bin 12. The fly ash enters the screw conveyor 10 through the sealed air lock discharger 11, and then the fly ash is slowly transported to the inside of the feed pipe 3 by the screw conveyor 10. At this time, the heat in the reactor 8 enters the screw conveyor 10 through the hot air return pipe 2, and the fly ash in the screw conveyor 10 and the feed pipe 3 is preheated. At this time, the temperature during preheating is detected by the third temperature sensor 15. When the exhaust pipe 1 discharges the exhaust gas, the oxygen content in the exhaust gas is measured by the oxygen content meter 13. The measurement is carried out to ensure whether the oxygen content in the reactor 8 meets the standard; when the dioxins in the fly ash in the reactor 8 are completely degraded and discharged from the reactor 8, the extended end of the driving cylinder 601 is extended to the longest, so that the baffle 606 is separated from the output end of the feed pipe 3. At this time, the L-shaped frame 604 is flipped by the lever 602, so that the input end of the air guide pipe 603 is connected to the output end of one of the jet pipes 7051. The output end of the air guide pipe 603 is facing the filter 14. The airflow ejected from the jet pipe 7051 cleans up the fly ash accumulated on the filter 14 to prevent it from clogging the hot air return pipe 2 and affecting the preheating effect, thereby improving the efficiency of preheating the fly ash.

[0037] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0038] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A kettle-type fly ash dioxin low-temperature continuous degradation device, comprising a reaction kettle (8) and a screw conveyor (10), characterized in that: A feed pipe (3) is fixedly inserted on one side of the top of the reactor (8), the input end of the feed pipe (3) is connected to the output end of the screw conveyor (10), a hot air return pipe (2) is fixedly inserted on the other side of the top of the reactor (8), the output end of the hot air return pipe (2) is connected to the screw conveyor (10), and a filter screen (14) is fixedly installed on the input end of the hot air return pipe (2), a treatment mechanism (7) for degrading dioxins in fly ash is movably arranged inside the reactor (8), and a flip mechanism (6) for improving the efficiency of preheating fly ash is movably arranged above the treatment mechanism (7); The processing mechanism (7) comprises a guide tube (702) fixedly connected to the reaction kettle (8) via two brackets (704); a conveying screw (703) is rotatably arranged inside the guide tube (702); a blowing unit (705) for blowing away fly ash is arranged in the middle of the outer wall of the guide tube (702); a driving motor (4) is fixedly installed on the top of the reaction kettle (8); an output end of the driving motor (4) movably passes through the reaction kettle (8) and is fixedly connected to the top of the conveying screw (703); The turning mechanism (6) comprises a shielding plate (606) rotatably connected to the reaction kettle (8), one end of the shielding plate (606) shields the output end of the feed pipe (3), a driving cylinder (601) for driving the shielding plate (606) to turn is hingedly connected to the top of the inner wall of the reaction kettle (8), the other end of the shielding plate (606) is fixedly connected to a fixing rod (605), and the end of the fixing rod (605) away from the shielding plate (606) is fixedly mounted with a shifting rod (602); An L-shaped frame (604) is rotatably arranged on the reaction kettle (8) on one side of the shielding plate (606); a slide groove is provided on the top of the L-shaped frame (604); the slide groove is movably connected to the lever (602); an air guide tube (603) is also fixedly installed on the L-shaped frame (604); the input end position of the air guide tube (603) corresponds to the output end position of one of the air jet tubes (7051), and the output end position of the air guide tube (603) corresponds to the position of the filter screen (14).

2. A kettle-type fly ash dioxin low-temperature continuous degradation device according to claim 1, characterized in that: The blowing unit (705) comprises a guide ring (7052) fixedly connected to the guide tube (702); an air jet ring (7053) is fixedly embedded inside the guide ring (7052); a plurality of air jet tubes (7051) are connected to the air jet ring (7053) at equal angles; and output ends of the plurality of air jet tubes (7051) extend out of the guide ring (7052).

3. A kettle-type fly ash dioxin low-temperature continuous degradation device according to claim 2, characterized in that: An air intake pipe (701) is fixedly inserted into the bottom of the guide ring (7052), the output end of the air intake pipe (701) is in communication with the jet ring (7053), and the input end of the air intake pipe (701) is fixedly passed through the reaction kettle (8).

4. A kettle-type fly ash dioxin low-temperature continuous degradation device according to claim 2, characterized in that: The top surface of the guide ring (7052) is an inclined surface, and the inclined surface faces the inner wall of the reaction kettle (8).

5. The kettle-type fly ash dioxin low-temperature continuous degradation device according to claim 1, characterized in that: A first temperature sensor (5) is fixedly inserted at the top of the reaction kettle (8), and a second temperature sensor is fixedly inserted at the bottom of the reaction kettle (8). A plurality of evenly distributed electric heaters (9) are fixedly embedded in the inner wall of the reaction kettle (8), and a third temperature sensor (15) is fixedly inserted in the middle of the feed pipe (3).

6. The kettle-type fly ash dioxin low-temperature continuous degradation device according to claim 1, characterized in that: The middle of the screw conveyor (10) is connected to an exhaust pipe (1), and the middle of the exhaust pipe (1) is fixedly installed with an oxygen content measuring instrument (13).

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