Efficient direct combustion incinerator

Abstract

The invention relates to the technical field of waste incineration, in particular to an efficient direct-fired incinerator which comprises an incinerator body, a material shifting mechanism and a dispersing mechanism, an incineration cavity is formed in the incinerator body, and feeding channels are formed in the upper portion of the incineration cavity in a bilateral symmetry mode; a first heating device is arranged in the incinerator body in the circumferential direction of the incineration cavity, and a second heating device is arranged in the feeding channel. High-humidity materials firstly horizontally move to be preheated and dehumidified and then vertically move to be incinerated at high temperature, sufficient combustion of the high-humidity materials is guaranteed, combustion improvers do not need to be additionally added, the preheating and dehumidification effect and efficiency are improved through the material stirring mechanism, the falling speed of the materials is reduced through the dispersing mechanism, and the materials are evenly dispersed at the bottom of the incineration cavity. And therefore, the incineration sufficiency is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of garbage incineration, and in particular to a high-efficiency direct-fired incinerator. Background Art

[0002] The comprehensive treatment and resource utilization of garbage and crop waste is an important issue in current environmental protection and sustainable development. If these materials are not handled properly, they will become an environmental burden; but if they are properly handled, they can be transformed into valuable resources. Reasonable and effective treatment methods can not only reduce environmental pollution, but also promote the sustainable use of resources.

[0003] For garbage that is not suitable for recycling or composting, efficient and clean incineration technology can be used for treatment. Incineration can not only significantly reduce the volume of garbage, but also generate electricity or heat through waste heat recovery. However, garbage and crop waste are both high-humidity raw materials, and external combustion-supporting materials are required when incinerating them, and it is easy to cause technical problems that are difficult to solve in practice, such as incomplete combustion. Summary of the invention

[0004] Technical problem to be solved: The present invention provides a high-efficiency direct-fired incinerator that can solve the above-mentioned problems.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a high-efficiency direct-fired incinerator, including an incinerator body, an incineration chamber is opened inside the incinerator body, and feed channels are opened symmetrically above the incineration chamber; a slag outlet is arranged at the bottom of the incineration chamber; a heating device - is arranged in the incinerator body around the incineration chamber, and a heating device 2 is arranged in the feed channel; the heating device 1 and the heating device 2 are both existing technologies.

[0006] The incinerator body is provided with an air passage and an air path, the lower end of the air passage is connected to the middle of the incineration chamber, the upper end of the air passage is connected to one end of the air path, and the other end of the air path extends upward through the incinerator body and is connected to an air outlet pipe. The air path is spirally opened in the incinerator body along the feeding direction and around the feeding channel.

[0007] The incinerator body is evenly provided with vent holes for discharging water vapor above the feed channel.

[0008] A feeding mechanism is arranged in the feeding channel; the feeding mechanism comprises two transmission rollers which are rotatably mounted on the outer wall of the incinerator body through a straight rod and rotatably mounted between the front and rear side walls of the feeding channel, and a conveyor belt is installed between the two transmission rollers; baffles are installed on the front and rear side walls of the conveyor belt; and round holes are evenly opened on the conveyor belt.

[0009] As a preferred technical solution of the present invention, a dispersion mechanism is arranged above the incineration chamber and between the incinerator body; the dispersion mechanism includes a rotating shaft rotatably installed on the incinerator body, the upper end of the rotating shaft extends to the outside of the incinerator body and is connected to the external drive, the lower end of the rotating shaft extends into the incineration chamber and is installed on the inner wall of the incineration chamber through a support rod, and the rotating shaft is rotatably connected to the support rod; a conical column is fixedly sleeved on the rotating shaft, and the diameter of the conical column gradually increases from top to bottom, and a fixed cylinder is arranged on the inner side wall of the upper part of the incineration chamber, and the upper surface of the fixed cylinder is an inclined surface structure inclined downward from the outside to the inside, and the inner circular surface of the fixed cylinder is an inclined surface structure inclined downward from the inside to the outside, and the inner circular surface of the fixed cylinder is an inclined surface structure inclined downward from the inside to the outside, and the inner circular surface of the fixed cylinder is consistent with the inclination angle of the cone surface of the conical column, and the two cooperate with each other to form a material movement channel.

[0010] As a preferred technical solution of the present invention, first stirring rods are evenly arranged on the inclined surface of the conical column, and second stirring rods are evenly arranged on the inclined surface of the fixed cylinder that matches the conical column and are staggered with the first stirring rods.

[0011] As a preferred technical solution of the present invention, a material-shifting mechanism is arranged in the feed channel and above the feed mechanism, and the material-shifting mechanism is connected to the dispersion mechanism by a gear set; the material-shifting mechanism comprises two fixed rods fixedly installed between the front and rear inner walls of the feed channel and distributed along the feed direction, a rotating rod is uniformly installed between the two fixed rods for rotation front and back, a material-shifting assembly is uniformly arranged axially on the rotating rod, the material-shifting assembly comprises a sleeve fixedly sleeved on the rotating rod, and shifting rods are uniformly arranged circumferentially on the outer side of the sleeve, and the material-shifting assemblies are staggered on the two adjacent rotating rods; a first bevel gear is installed on the end of the middle rotating rod close to the incineration chamber after passing through the fixed rod, a second bevel gear is sleeved on the rotating shaft, and the first bevel gear and the second bevel gear are meshed with each other; a part of the middle rotating rod located between the first bevel gear and the fixed rod is fixedly sleeved with a first gear, and the remaining rotating rods are all installed with a second gear after passing through the fixed rod at one end close to the incineration chamber, and the first gear and the second gear are meshed with each other.

[0012] As a preferred technical solution of the present invention, an annular plate that slides with the incineration chamber wall is fixedly mounted on the rotating shaft through support rod 2, the annular plate surface is a structure that radially slopes downward from outside to inside, and the inner surface of the annular plate is a structure with alternating concave and convex surfaces.

[0013] As a preferred technical solution of the present invention, the annular plate is located above the connection between the airway and the combustion chamber, and the bottom of the conical column is provided with a conical hole whose diameter gradually increases from top to bottom.

[0014] The present invention has the following beneficial effects: 1. A high-efficiency direct-fired incinerator provided by the present invention enables high-humidity materials to move horizontally first and then vertically by setting a horizontal feed channel and a vertical incineration chamber, and to be preheated and dehumidified in the horizontal moving section and to be incinerated at high temperature in the vertical section, thereby ensuring that the high-humidity materials are fully burned without the need for additional combustion aids.

[0015] 2. The high-efficiency direct-fired incinerator provided by the present invention arranges the gas path in a manner of surrounding the feed channel and opening spirally along the feed direction so that the gas generated after the material undergoes high-temperature cracking in the incineration chamber enters the gas path through the gas channel. The high-temperature gas generated by the high-temperature cracking performs preliminary drying and dehumidification on the high-humidity material in the feed channel. At this time, the heating device 2 can be temporarily closed to achieve the purpose of energy saving and environmental protection.

[0016] 3. The present invention provides a high-efficiency direct-fired incinerator that cooperates with a fixed cylinder and a conical column to form a material movement channel, thereby reducing the speed at which materials fall and providing sufficient time and space for the complete combustion of the materials below. While the materials fall in the movement channel, the conical column rotates to evenly disperse the materials, so that they evenly fall on the bottom of the incineration chamber, thereby increasing the incineration effect.

[0017] 4. The high-efficiency direct-fired incinerator provided by the present invention reduces the falling speed of materials and increases the adequacy of incineration through the annular plate provided. On the other hand, the concave and convex alternating structure of the inner ring surface and the structural setting that rotates with the rotating shaft enable materials to fall into the incineration chamber near the center or far from the center, thereby ensuring the uniformity of the materials and further improving the effect and efficiency of incineration. In addition, the conical holes can cooperate with the conical holes to allow the gas generated by cracking to flow into the airway and pass into the air path, thereby ensuring the preheating and dehumidification effect of high-humidity materials and the subsequent sufficient collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0020] Figure 2 It is a cross-sectional view of the present invention.

[0021] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure from a second viewing angle of the present invention.

[0022] Figure 4 The present invention Figure 3 Enlarged view of point A in the middle.

[0023] Figure 5 The present invention Figure 2 Enlarged view of B.

[0024] Figure 6 It is a schematic diagram of the structural cross section of the vent hole of the present invention.

[0025] In the figure: 1. incinerator body; 2. feeding mechanism; 3. material shifting mechanism; 4. dispersion mechanism; 11. incineration chamber; 12. feeding channel; 13. airway; 14. air path; 15. air outlet pipe; 16. air vent; 21. transmission roller; 22. conveyor belt; 23. baffle; 31. fixed rod; 32. rotating rod; 33. shifting rod; 34. first bevel gear; 35. first gear; 36. second gear; 41. rotating shaft; 42. conical column; 43. fixed cylinder; 411. second bevel gear; 412. annular plate; 421. first stirring rod; 422. conical hole; 431. second stirring rod. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0027] See also Figure 1-Figure 2 A high-efficiency direct-fired incinerator comprises an incinerator body 1, wherein an incineration chamber 11 is provided inside the incinerator body 1, and a feed channel 12 is symmetrically provided above the incineration chamber 11; a slag outlet (not shown in the figure) is provided at the bottom of the incineration chamber 11; a heating device 1 (not shown in the figure) is provided in the incinerator body 1 around the incineration chamber 11, which is used for high-temperature cracking of the material entering the incineration chamber 11, and the heating device 1 is a prior art; an existing heating device 2 (not shown in the figure) is also provided in the feed channel 12, which is used for preheating and dehumidifying the material at the beginning of the feeding process, so as to reduce the difficulty of high-temperature cracking of the material in the subsequent incineration chamber 11, improve the incineration efficiency, and solve the problem of incomplete combustion; the present invention arranges a horizontal feed channel 12 and a vertical incineration chamber 11, so that the material moves horizontally first and then vertically, and preheats and dehumidifies in the horizontal moving section, and incinerates at high temperature in the vertical section, thereby ensuring the full combustion of the high-humidity material, and no additional combustion aid is required.

[0028] See also Figure 2 , Figure 3An air passage 13 is provided inside the incinerator body 1, and the air passage 13 is located below the feed channel 12. The lower end of the air passage 13 is connected to the middle part of the incineration chamber 11. An air path 14 is provided in the incinerator body 1 along the feed direction and spirally around the feed channel 12. The upper end of the air passage 13 is connected to one end of the air passage 14, and the other end of the air passage 14 extends upward through the incinerator body 1 and is connected to an outlet pipe 15; the gas generated by the high-temperature cracking of the material in the incineration chamber 11 enters the air passage 14 through the air passage 13, and is then discharged through the outlet pipe 15. The air passage 14 is arranged to be spirally opened around the feed channel 12 and along the feed direction so that the high-temperature gas generated by the high-temperature cracking can preliminarily dry and dehumidify the high-humidity material in the feed channel 12. At this time, the heating device 2 can be temporarily closed to achieve the purpose of energy saving and environmental protection.

[0029] See also Figure 3 and Figure 5 The incinerator body 1 is evenly provided with air vents 16 above the feed channel 12. When the high-humidity material passes through the feed channel 12 and is initially dried by the high-temperature gas in the heating device 2 or the gas path 14, water vapor will be generated. The water vapor flows upward through the air vents 16 and is discharged out of the incinerator. The air inlet end of the air vent 16 is a trumpet-shaped structure, which is used to guide the water vapor to be discharged from the air vent 16 faster, thereby improving the efficiency of the initial dehumidification.

[0030] See also Figure 1-Figure 4 A feeding mechanism 2 is arranged in the feeding channel 12; the feeding mechanism 2 comprises two driving rollers 21 which are rotatably mounted on the outer wall of the incinerator body 1 through a straight rod and are rotatably mounted between the front and rear side walls of the feeding channel 12, and a conveyor belt 22 is installed between the two driving rollers 21; baffles 23 are installed on the front and rear side walls of the conveyor belt 22; circular holes are evenly opened on the conveyor belt 22, so that during the preheating process of high-humidity materials, hot air can enter from below, thereby improving the preheating dehumidification effect and efficiency. In addition, it also avoids the water vapor generated during the heating process from being unable to dissipate between the conveyor belt 22 and the bottom of the material, affecting the dehumidification effect; the driving roller 21 which is rotatably mounted on the outer wall of the incinerator body 1 through a straight rod is located outside the incinerator body 1, so that the conveyor belt 22 is partially located on the outside, which is convenient for high-humidity materials to be fed into the feeding channel 12.

[0031] See also Figure 2 and Figure 3A dispersion mechanism 4 is arranged above the incineration chamber 11 and between the incinerator body 1; the dispersion mechanism 4 includes a rotating shaft 41 rotatably mounted on the incinerator body 1, the upper end of the rotating shaft 41 extends to the outside of the incinerator body 1 and is connected to an external drive, the lower end of the rotating shaft 41 extends into the incineration chamber 11 and is mounted on the inner wall of the incineration chamber 11 through a support rod, and the rotating shaft 41 is rotatably connected to the support rod; a conical column 42 is fixedly sleeved on the rotating shaft 41, and the diameter of the conical column 42 gradually increases from top to bottom, and a fixed cylinder 43 is arranged on the inner side wall of the upper part of the incineration chamber 11, and the upper surface of the fixed cylinder 43 is an inclined surface structure inclined downward from the outside to the inside, and the inner circular surface of the fixed cylinder 43 is an inclined surface structure inclined downward from the inside to the outside, and the inner circular surface of the fixed cylinder 43 is consistent with the inclination angle of the cone surface of the conical column 42, and the two cooperate with each other to form a material movement channel.

[0032] During specific operation, the external drive drives the conical column 42 to rotate through the rotating shaft 41, and the material is transported to the upper surface of the fixed cylinder 43 through the feeding mechanism 2, and falls into the moving channel under the action of its inclined structure. By setting up the moving channel, the speed of the falling material can be slowed down, thereby providing sufficient time and space for the complete combustion of the material below. While the material falls in the moving channel, the conical column 42 rotates, which can evenly disperse the material, so that it evenly falls on the bottom of the incineration chamber 11, thereby increasing the incineration effect.

[0033] See also Figure 3 and Figure 5 The first stirring rods 421 are evenly arranged on the inclined surface of the conical column 42, and the second stirring rods 431 are evenly arranged on the inclined surface of the fixed cylinder 43 that cooperates with the conical column 42, and are staggered with the first stirring rods 421. The first stirring rod 421 and the second stirring rod 431 cooperate to further slow down the falling speed of the material, and at the same time, the material can be better dispersed when the conical column 42 rotates, thereby further increasing the incineration effect and efficiency.

[0034] See also Figure 3 and Figure 4A material-shifting mechanism 3 is arranged in the feed channel 12 and above the feed mechanism 2. The material-shifting mechanism 3 is connected to the dispersion mechanism 4 through a gear set. The material-shifting mechanism 3 includes two fixed rods 31 fixedly installed between the front and rear inner walls of the feed channel 12 and distributed along the feed direction. A rotating rod 32 is evenly rotated front and back between the two fixed rods 31. The rotating rod 32 is evenly axially arranged with a material-shifting assembly. The material-shifting assembly includes a sleeve fixedly sleeved on the rotating rod 32. The outer side of the sleeve is evenly circumferentially arranged with shifting rods 33. Two adjacent rotating rods 32 are evenly arranged with a shifting rod 33. The upper material-shifting components are staggered; the middle rotating rod 32 is provided with a first bevel gear 34 after passing through the fixed rod 31 at one end close to the incineration chamber 11, and a second bevel gear 411 is sleeved on the rotating shaft 41, and the first bevel gear 34 and the second bevel gear 411 are meshed with each other; the middle rotating rod 32 is provided with a first gear 35 on a fixed sleeve on a part between the first bevel gear 34 and the fixed rod 31, and the remaining rotating rods 32 are provided with second gears 36 after passing through the fixed rod 31 at one end close to the incineration chamber 11, and the first gear 35 and the second gear 36 are meshed with each other.

[0035] During specific operation, the external drive drives the rotating shaft 41 to rotate, and the second bevel gear 411 rotates synchronously. The rotation of the second bevel gear 411 drives the first bevel gear 34 to move synchronously. The rotation of the first bevel gear 34 drives the middle rotating rod 32 to rotate. While the rotating rod 32 rotates, the remaining rotating rods 32 are driven to rotate synchronously through the first gear 35 and the second gear 36, and then all the material-prying components on the rotating rods 32 move synchronously to disperse the material on the conveyor belt 22 to improve the effect of preheating and dehumidification; the material-prying components on adjacent rotating rods 32 rotate in opposite directions, which increases the uniformity of dispersing the material on the conveyor belt 22, which is beneficial to improving the effect of preheating and dehumidification.

[0036] See also Figure 3 The rotating shaft 41 is fixedly mounted with an annular plate 412 that slides with the wall of the incineration chamber 11 through a second support rod. The surface of the annular plate 412 is a structure that is radially inclined downward from the outside to the inside, and the inner surface of the annular plate 412 is a structure with concave and convex alternating. When the rotating shaft 41 rotates, the annular plate 412 is driven to rotate synchronously, and the material passes through the moving channel between the fixed cylinder 43 and the conical column 42 and falls onto the surface of the annular plate 412. Under the action of the inclined surface structure, it falls to the bottom of the incineration chamber 11. The setting of the annular plate 412, on the one hand, slows down the falling speed of the material and increases the adequacy of the incineration. On the other hand, the concave and convex structure of the inner surface and the structural setting that rotates with the rotating shaft 41 enable the material to fall both near the center of the incineration chamber 11 and far from the center, thereby ensuring the uniformity of the material and further improving the effect and efficiency of the incineration.

[0037] See also Figure 2 and Figure 3The annular plate 412 is located above the connection between the airway 13 and the incineration chamber 11, and a conical hole 422 with a diameter gradually increasing from top to bottom is opened at the bottom of the conical column 42; when the gas generated by the high-temperature cracking of the material flows upward, the gas located around the incineration chamber 11 cannot flow upward due to the obstruction of the annular plate 412, and thus flows out upward through the airway 13, and the gas located in the middle of the incineration chamber 11 flows upward into the conical hole 422. Due to the obstruction of the hole wall of the conical hole 422, the gas flows downward along the hole wall of the conical hole 422 and toward the wall of the incineration chamber 11, so that it can smoothly enter the airway 13 for further discharge. In order to further increase the emission of the cracking gas, an air pump can also be provided on the outlet pipe 15 of the incinerator body 1.

[0038] All the structures disclosed above in the present invention are made of existing high temperature resistant materials.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-efficiency direct-fired incinerator, comprising an incinerator body (1), characterized in that: The incinerator body (1) is provided with an incineration chamber (11) inside, and a feed channel (12) is symmetrically provided above the incineration chamber (11); a slag outlet is provided at the bottom of the incineration chamber (11); a heating device 1 is provided in the incinerator body (1) around the incineration chamber (11), and a heating device 2 is provided in the feed channel (12); the heating device 1 and the heating device 2 are prior art; An air duct (13) and an air path (14) are provided inside the incinerator body (1); the lower end of the air duct (13) is connected to the middle of the incineration chamber (11); the upper end of the air duct (13) is connected to one end of the air path (14); the other end of the air path (14) extends upward, passes through the incinerator body (1), and is connected to an air outlet pipe (15); The incinerator body (1) is evenly provided with vent holes (16) for discharging water vapor above the feed channel (12); A feeding mechanism (2) is arranged in the feeding channel (12).

2. A high-efficiency direct-fired incinerator according to claim 1, characterized in that: The gas path (14) is spirally opened in the incinerator body (1) along the feeding direction and around the feeding channel (12).

3. A high-efficiency direct-fired incinerator according to claim 1, characterized in that: The feeding mechanism (2) comprises two transmission rollers (21) which are rotatably mounted on the outer wall of the incinerator body (1) via a straight rod and are rotatably mounted between the front and rear side walls of the feeding channel (12); a conveyor belt (22) is mounted between the two transmission rollers (21); baffles (23) are mounted on the front and rear side walls of the conveyor belt (22); and circular holes are evenly arranged on the conveyor belt (22).

4. A high-efficiency direct-fired incinerator according to claim 1, characterized in that: A dispersion mechanism (4) is arranged above the incineration chamber (11) and between the incinerator body (1); the dispersion mechanism (4) comprises a rotating shaft (41) rotatably mounted on the incinerator body (1); the upper end of the rotating shaft (41) extends to the outside of the incinerator body (1) and is connected to an external drive; the lower end of the rotating shaft (41) extends into the incineration chamber (11) and is mounted on the inner wall of the incineration chamber (11) via a support rod; the rotating shaft (41) is rotatably connected to the support rod; the rotating shaft (41) 1) The upper fixed sleeve is provided with a conical column (42), the diameter of which gradually increases from top to bottom, and the inner side wall of the upper part of the incineration chamber (11) is provided with a fixed cylinder (43), the upper surface of the fixed cylinder (43) is a slope structure that slopes downward from outside to inside, the inner circular surface of the fixed cylinder (43) is a slope structure that slopes downward from inside to outside, and the inner circular surface of the fixed cylinder (43) is consistent with the inclination angle of the conical surface of the conical column (42), and the two cooperate with each other to form a material moving channel.

5. A high-efficiency direct-fired incinerator according to claim 4, characterized in that: The first stirring rods (421) are evenly arranged on the inclined surface of the conical column (42), and the second stirring rods (431) staggered with the first stirring rods (421) are evenly arranged on the inclined surface of the fixed cylinder (43) that matches the conical column (42).

6. A high-efficiency direct-fired incinerator according to claim 3, characterized in that: A material shifting mechanism (3) is arranged in the feeding channel (12) and above the feeding mechanism (2); the material shifting mechanism (3) is connected to the dispersion mechanism (4) via a gear set; the material shifting mechanism (3) comprises two fixed rods (31) fixedly mounted between the front and rear inner walls of the feeding channel (12) and distributed along the feeding direction; a rotating rod (32) is evenly mounted between the two fixed rods (31) to rotate forward and backward; a material shifting assembly is evenly arranged axially on the rotating rod (32); the material shifting assembly comprises a sleeve fixedly mounted on the rotating rod (32); the outer side of the sleeve is evenly arranged with shifting rods (33) circumferentially; the material shifting assembly on two adjacent rotating rods (32) is arranged to rotate forward and backward; The parts are staggeredly distributed; the end of the middle rotating rod (32) close to the incineration chamber (11) passes through the fixed rod (31) and is installed with a first bevel gear (34); the rotating shaft (41) is sleeved with a second bevel gear (411), and the first bevel gear (34) and the second bevel gear (411) are meshed with each other; the part of the middle rotating rod (32) located between the first bevel gear (34) and the fixed rod (31) is fixedly sleeved with a first gear (35), and the other rotating rods (32) are installed with a second gear (36) at one end close to the incineration chamber (11) after passing through the fixed rod (31), and the first gear (35) and the second gear (36) are meshed with each other.

7. A high-efficiency direct-fired incinerator according to claim 1, characterized in that: An annular plate (412) is fixedly mounted on the rotating shaft (41) via a second support rod and is slidably matched with the wall of the incineration chamber (11). The surface of the annular plate (412) is a structure that is radially inclined downward from the outside to the inside, and the inner ring surface of the annular plate (412) is a structure with alternating concave and convex surfaces.

8. A high-efficiency direct-fired incinerator according to claim 2, characterized in that: The annular plate (412) is located above the connection between the airway (13) and the combustion chamber (11), and the bottom of the conical column (42) is provided with a conical hole (422) whose diameter gradually increases from top to bottom.

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