A feedback control automated sludge treatment device

Abstract

This invention relates to the field of sludge treatment and processing technology, and discloses a feedback-controlled automated sludge treatment device, including an incinerator with an inner cavity. A partition is installed inside the incinerator, dividing the inner cavity into a combustion chamber and a temporary storage chamber. A drying pipe is inclinedly arranged inside the combustion chamber, with its high end protruding outside the combustion chamber to form a feed end and its low end extending into the temporary storage chamber to form a discharge end. A leveling mechanism is installed in the temporary storage chamber to feed the dried sludge into the combustion chamber. An exhaust pipe protruding from either the combustion chamber or the temporary storage chamber is provided on the drying pipe. This invention solves the problem of low sludge incineration efficiency caused by structural defects in the prior art.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, and more particularly to a feedback-controlled automated sludge treatment device. Background Technology

[0002] With socio-economic development and improved living standards, the output of industrial wastewater and urban sewage is increasing daily. During wastewater treatment, a large amount of suspended solids are generated, collectively known as sludge. Sludge has a complex composition, and improper disposal can significantly impact human, animal, and plant health. Reduction, stabilization, and harmlessness are the fundamental principles of sludge treatment. Sludge incineration technology offers advantages such as rapid processing, high reduction rates, and energy reuse, and is widely used both domestically and internationally. This technology is the most thorough method for sludge disposal, and is particularly useful when the sludge contains high levels of toxic and harmful substances that cannot be reduced in the short term.

[0003] The existing sludge incineration process typically involves the following steps: First, wet sludge with a relatively high moisture content is weighed using a weighbridge and then enters a sludge receiving silo. Next, this wet sludge is transported to a sludge storage silo for storage. The stored wet sludge is then quantitatively pumped into a drying chamber for drying. The dried sludge is then conveyed to an intermediate silo. The dried sludge from the intermediate silo is then evenly fed into the incinerator for combustion. The high-temperature flue gas generated during incineration undergoes a series of flue gas treatment processes, including dust collection, denitrification, and desulfurization, to ensure that the final emissions meet environmental standards.

[0004] The existing related technologies have the following technical defects: the traditional sludge treatment process involves drying wet sludge through drying equipment and then incinerating it in a combustion chamber. This process has disadvantages such as complex system structure, large footprint, low heat utilization rate, and low sludge treatment efficiency. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a feedback control automated sludge treatment device to solve the problem of low sludge incineration efficiency caused by structural defects in the prior art.

[0006] The present invention solves the above-mentioned technical problems through the following technical means: a feedback control automated sludge treatment device, including an incinerator with an inner cavity, wherein a partition is provided inside the incinerator to divide the inner cavity of the incinerator into a combustion chamber and a temporary storage chamber, a drying pipe is inclinedly arranged in the combustion chamber, the high end of the drying pipe protrudes outside the combustion chamber to form a feed end, and the low end extends into the temporary storage chamber to form a discharge end, a material leveling mechanism is provided in the temporary storage chamber, the material leveling mechanism is used to send the dried sludge into the combustion chamber, and an exhaust pipe protruding outside the combustion chamber or the temporary storage chamber is provided on the drying pipe.

[0007] Furthermore, the material leveling mechanism includes a first guide plate, a second guide plate, and a guide platform. The first guide plate is located below the discharge end of the drying pipe and is inclined from top to bottom away from the drying pipe. The second guide plate is located below the lower end of the first guide plate and is inclined from top to bottom towards the drying pipe. The guide platform is inclinedly arranged in the temporary storage chamber and located below the second guide plate. The lower end of the guide platform extends into the combustion chamber. A material leveling component is provided on the second guide plate, which is used to quantitatively feed the dried sludge into the combustion chamber.

[0008] Furthermore, the material leveling assembly includes a U-shaped frame, the web of which is rotatably mounted on the side wall of the second guide plate. The opening of the U-shaped frame faces the combustion chamber. The length of the upper wing of the U-shaped frame is greater than the length of the lower wing. The free end of the upper wing of the U-shaped frame is provided with a first lateral extension section, and the free end of the lower wing is provided with a second lateral extension section. Both the first and second lateral extension sections extend towards the second guide plate. A first baffle plate is provided at the bottom of the first lateral extension section, and a second baffle plate is provided at the top of the second lateral extension section. A through slot is provided on the second guide plate for the second baffle plate to pass through. A drive assembly for driving the U-shaped frame to swing up and down is provided in the temporary storage chamber.

[0009] Furthermore, the first baffle plate and the second baffle plate are staggered in the vertical direction.

[0010] Furthermore, the drive assembly includes a drive component, a rotating shaft, and a first cam. The drive component is installed on the side wall of the temporary storage chamber. One end of the rotating shaft is fixedly connected to the output end of the drive component. The first cam is fixedly sleeved on the rotating shaft, and the edge of the first cam contacts the bottom of the lower wing plate of the U-shaped frame.

[0011] Furthermore, a tension spring is installed inside the drying tube. One end of the tension spring is fixedly connected to the inner wall of the drying tube, and the other end is fixed with a pull rope extending out of the drying tube. A linkage assembly for driving the pull rope to pull the tension spring is installed in the temporary storage chamber.

[0012] Furthermore, the linkage assembly includes several pulleys located above the drying pipe and installed on the inner wall of the temporary storage chamber. The end of the pull rope away from the tension spring passes around all the pulleys in sequence and is fixedly connected to the top of the upper wing plate of the U-shaped frame.

[0013] Furthermore, a combustion frame is provided at the lower end of the guide platform in the combustion chamber. The combustion frame is inclined from top to bottom away from the guide platform. The combustion frame includes two parallel and spaced support plates. Several horizontal plates are fixedly arranged at equal intervals between the support plates along the length of the support plates. The several horizontal plates are stepped. A pusher plate is slidably installed on the top of each horizontal plate. The pusher plate seals the gap between two adjacent horizontal plates. A power component for driving the pusher plate to move left and right is provided in the temporary storage chamber.

[0014] Furthermore, a sliding plate is slidably connected to the combustion chamber below the combustion frame. Each pusher plate has a connecting plate at one end near the temporary storage chamber, with the other end connected to the sliding plate. A transmission rod is fixed to one end of the sliding plate, extending into the temporary storage chamber. The power assembly includes a second cam, a rotating rod, and a synchronous belt. The rotating rod is rotatably installed in the temporary storage chamber, and its axis is parallel to the axis of the rotating shaft. The synchronous belt is sleeved on the surface of the rotating rod and the rotating shaft. The second cam is fixedly sleeved on the rotating rod. A hemispherical protrusion is fixed to the end of the transmission rod away from the combustion chamber. The hemispherical protrusion contacts the edge of the second cam. A mounting plate is movably connected to the surface of the transmission rod. A spring is fitted onto the surface of the transmission rod. One end of the spring is fixedly connected to the side wall of the hemispherical protrusion, and the other end is fixedly connected to the mounting plate.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. The present invention uses an inclined feeding pipe, which allows wet sludge to enter smoothly and slide down into the temporary storage chamber under gravity. The high-temperature flue gas generated by the combustion of sludge can dry the wet sludge inside the drying pipe, resulting in high energy utilization. This design is simple and effective.

[0017] 2. The fuel in the combustion chamber of this invention is dry sludge, which means that wet sludge that has been dried can be directly used as fuel for incineration without additional energy input, greatly improving the sludge treatment efficiency.

[0018] 3. By setting up an exhaust pipe, the present invention can discharge the gas generated by the wet sludge inside the drying pipe during the drying process.

[0019] 4. This invention controls the feed rate of the drying tube by feeding back the combustion efficiency of the dry sludge, and then the uniform feeding mechanism automatically adds the dry sludge evenly into the combustion chamber. The overall structure is simple, occupies a small area, has high heat utilization rate, and high combustion efficiency. Attached Figure Description

[0020] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0021] Figure 1This is a schematic diagram of the structure of a feedback control automated sludge treatment device according to the present invention.

[0022] Figure 2 This is a schematic diagram of the material leveling mechanism in this invention.

[0023] Figure 3 This is a schematic diagram of the material leveling mechanism from another perspective in this invention.

[0024] Figure 4 This is a schematic diagram of the U-shaped frame in this invention.

[0025] Figure 5 This is a partial cross-sectional view of the combustion rack in this invention.

[0026] Figure 6 This is a partial structural diagram of the horizontal plate in this invention.

[0027] Figure 7 This is a partial structural diagram of the sliding plate in this invention.

[0028] In the above attached figures:

[0029] 1. Incinerator; 11. Combustion chamber; 12. Temporary storage chamber; 13. Partition; 14. Discharge port; 15. Exhaust vent;

[0030] 2. Drying pipe; 21. Exhaust pipe;

[0031] 31. First guide plate; 32. Second guide plate; 33. Guide platform;

[0032] 4. U-shaped frame; 41. Upper wing plate; 42. Lower wing plate; 43. First lateral extension section; 44. Second lateral extension section; 45. First baffle plate; 46. Second baffle plate;

[0033] 51. First cam; 52. Shaft; 53. Timing belt; 54. Rotor; 55. Second cam;

[0034] 61. Drive rod; 62. Mounting plate; 63. Spring; 64. Hemispherical protrusion; 65. Sliding plate; 66. Connecting plate;

[0035] 7. Push plate;

[0036] 8. Combustion rack; 81. Support plate; 82. Horizontal plate;

[0037] 91. Tension spring; 92. Pull rope; 93. Pulley. Detailed Implementation

[0038] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures, and should not be construed as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged, or reduced, and do not represent the actual product size; it is understandable for those skilled in the art that some well-known mechanisms and their descriptions may be omitted in the figures.

[0039] In the figures of this invention, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the figures are only for illustrative purposes and should not be construed as limiting this invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. In the description of this application, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] like Figure 1-7As shown in the figure, this embodiment of the invention proposes a feedback control automated sludge treatment device, including an incinerator 1 with an inner cavity. A partition 13 is fixedly installed inside the incinerator 1. The partition 13 should have a heat insulation function. The partition 13 divides the inner cavity of the incinerator 1 into a combustion chamber 11 and a temporary storage chamber 12 in the left-right direction. A drying pipe 2 is inclinedly arranged in the combustion chamber 11. The high end of the drying pipe 2 protrudes outside the combustion chamber 11 to form a feed end. Specifically, the high end of the drying pipe 2 is funnel-shaped to facilitate feeding. The low end of the drying pipe 2 extends into the temporary storage chamber 12 to form a discharge end. In this embodiment, the drying pipe 2 can be designed as two sections, one end located in the left combustion chamber 11 and the other end located in the right temporary storage chamber 12. Both sections of the drying pipe 2 are installed on the partition 13 and connected. This structural design can keep the temperature of the drying pipe 2 in the temporary storage chamber 12 at a low value as much as possible, avoiding excessive temperature from affecting other structures in the temporary storage chamber 12. A material leveling mechanism is installed in the temporary storage chamber 12 to quantitatively feed the dried sludge into the combustion chamber 11. An exhaust pipe 21 protrudes from the combustion chamber 11 or the temporary storage chamber 12 on the drying pipe 2. In this embodiment, multiple exhaust pipes 21 can be provided. It should be understood that an exhaust vent 15 should be provided at the top of the combustion chamber 11, and the bottom or side wall of the combustion chamber 11 should have a structure for introducing fresh air. Simultaneously, a discharge port 14 is provided at the bottom leftmost side of the combustion chamber 11 to discharge the ash residue produced after the dry sludge is burned. A collection device can also be installed at the discharge port 14 to facilitate the collection of ash residue. All exhaust pipes 21 and exhaust vents 15 are connected to the flue gas treatment system. The relevant structures have been fully disclosed in the prior art and will not be elaborated further here.

[0041] The material leveling mechanism includes a first guide plate 31, a second guide plate 32, and a guide platform 33. The first guide plate 31 is fixed to the inner wall of the temporary storage chamber 12 and located below the discharge end of the drying pipe 2. The first guide plate 31 is inclined from top to bottom away from the drying pipe 2. The second guide plate 32 is located below the lower end of the first guide plate 31. The two guide plates are inclined from top to bottom towards the drying pipe 2. The guide platform 33 is inclined in the temporary storage chamber 12 and located below the second guide plate 32. The lower end of the guide platform 33 extends into the combustion chamber 11. A material leveling component is provided on the second guide plate 32. The material leveling component is used to quantitatively feed the dried sludge into the combustion chamber 11.

[0042] The material leveling assembly includes a U-shaped frame 4. The web of the U-shaped frame 4 is rotatably mounted on the side wall of the second guide plate 32. The opening of the U-shaped frame 4 faces the combustion chamber 11. One wing of the U-shaped frame 4 is located above the second guide plate 32 to form an upper wing 41, and the other wing of the U-shaped frame 4 is located below the second guide plate 32 to form a lower wing 42. The length of the upper wing 41 of the U-shaped frame 4 is greater than the length of the lower wing 42. The free end of the upper wing 41 of the U-shaped frame 4 is provided with a first transverse extension section 43, and the free end of the lower wing 42 is provided with a second transverse extension section 44. Both the first transverse extension section 43 and the second transverse extension section 44 extend toward the second guide plate 32. The bottom of the first transverse extension section 43 is provided with a first baffle plate 45, and the top of the second transverse extension section 44 is provided with a second baffle plate 46. The second guide plate 32 has a through groove for the second baffle plate 46 to pass through. A drive assembly for driving the U-shaped frame 4 to swing up and down is provided in the temporary storage chamber 12.

[0043] The first baffle plate 45 and the second baffle plate 46 are staggered in the vertical direction, and are also staggered in the horizontal direction.

[0044] The drive assembly includes a drive component, a rotating shaft 52, and a first cam 51. In this embodiment, the drive component is a motor (not shown in the figure). The drive component is fixedly installed on the side wall of the temporary storage chamber 12 by bolts. One end of the rotating shaft 52 is fixedly connected to the output end of the drive component. The first cam 51 is fixedly sleeved on the rotating shaft 52. The axis of the rotating shaft 52 is parallel to the rotation axis of the U-shaped frame 4, and the edge of the first cam 51 contacts the bottom of the lower wing plate 42 of the U-shaped frame 4. By driving the rotating shaft 52 and the cam to rotate, the U-shaped frame 4 can be driven to swing in the vertical plane, thereby causing the first baffle plate 45 and the second baffle plate 46 to intermittently block the falling dry sludge. In each swing cycle, the dry sludge between the first baffle plate 45 and the second baffle plate 46 slides down to the guide platform 33 and finally falls into the combustion chamber 11, forming a uniform and quantitative input of dry sludge into the combustion chamber 11, resulting in more uniform combustion of the dry sludge and higher combustion efficiency.

[0045] A combustion frame 8 is provided at the lower end of the guide platform 33 inside the combustion chamber 11. The combustion frame 8 is inclined from top to bottom away from the guide platform 33. The combustion frame 8 includes two parallel and spaced support plates 81. Several horizontal plates 82 are fixed at equal intervals between the support plates 81 along the length of the support plates 81. The several horizontal plates 82 are stepped in the vertical direction. A pusher plate 7 is slidably installed on the top of each horizontal plate 82. The pusher plate 7 seals the gap between two adjacent horizontal plates 82. A power component for driving the pusher plate 7 to move left and right is provided in the temporary storage chamber 12.

[0046] A sliding plate 65 is slidably connected to the combustion chamber 11 below the combustion rack 8. Each pusher plate 7 has a connecting plate 66 at one end near the temporary storage chamber 12, the other end of which is fixedly connected to the sliding plate 65. A transmission rod 61 is fixed to the right end of the sliding plate 65, extending into the temporary storage chamber 12. The power assembly includes a second cam 55, a rotating rod 54, and a timing belt 53. The rotating rod 54 is rotatably mounted on the inner wall of the temporary storage chamber 12, and the axis of the rotating rod 54 is parallel to the axis of the rotating shaft 52. The timing belt 53 is sleeved on the surface of the rotating rod 54 and the rotating shaft 52. It should be understood that the timing belt 53 can be rotated... Pullers are fixedly fitted onto rod 54 and shaft 52 respectively. A timing belt 53 is tensioned and fitted onto the surfaces of the two pulleys. A second cam 55 is fixedly fitted onto rod 54. A hemispherical protrusion 64 is fixed to the end of transmission rod 61 away from combustion chamber 11, and the hemispherical protrusion 64 contacts the edge of the second cam 55. A mounting plate 62 is movably connected to the surface of transmission rod 61. The mounting rod is fixed to the inner wall of temporary storage chamber 12. A spring 63 is fitted onto the surface of transmission rod 61. One end of the spring 63 is fixedly connected to the side wall of the hemispherical protrusion 64, and the other end is fixedly connected to the mounting plate 62. In this embodiment, the rotation of the second cam 55 drives transmission rod 61 and sliding plate 65 to reciprocate horizontally, thereby driving all pusher plates 7 to reciprocate horizontally. The dry sludge passes sequentially through all horizontal plates 82 and pusher plates 7, and is gradually pushed downwards by the pusher plates 7, ensuring complete combustion of the dry sludge and further increasing its combustion efficiency.

[0047] A tension spring 91 is installed inside the drying tube 2. One end of the tension spring 91 is fixedly connected to the inner wall of the drying tube 2, and the other end is fixed with a pull rope 92 extending out of the drying tube 2. A linkage assembly is installed inside the temporary storage chamber 12 to drive the pull rope 92 to pull the tension spring 91. The linkage assembly includes several pulleys 93 located above the drying tube 2 and installed on the inner wall of the temporary storage chamber 12. The end of the pull rope 92 away from the tension spring 91 passes around all the pulleys 93 in sequence and is fixedly connected vertically downward to the top of the upper wing plate 41 of the U-shaped frame 4. In this embodiment, when the U-shaped frame 4 swings up and down, it drives the tension spring 91 to clear the sludge in the drying tube 2 and prevent blockage.

[0048] In the above embodiments, both the tension spring 91 and the pull rope 92 are made of high-temperature resistant materials, such as steel wire pull rope 92.

[0049] Working principle:

[0050] Wet sludge is added from the feed end of the drying pipe 2. The drive unit drives the rotating shaft 52 and the first cam 51 to rotate. The first cam 51 drives the U-shaped frame 4 to swing up and down, thereby driving the tension spring 91 to clear the sludge in the drying pipe 2. The sludge in the drying pipe 2 is dried under the high temperature of the combustion chamber 11. The flue gas generated by its drying is discharged from the exhaust pipe 21. After drying, the sludge falls directly into the first guide plate 31 and then slides down to the second guide plate 32. Under the action of gravity, the dry sludge continues to slide down. The swing of the U-shaped frame 4 causes the first baffle plate 45 and the second baffle plate 46 to periodically move against the second guide plate 32. The dry sludge in the material plate 32 is blocked or passed through, so that the dry sludge on the second guide plate 32 slides down to the guide platform 33 evenly and quantitatively, and finally slides down to the combustion rack 8 for combustion. When the dry sludge is burning, under the action of the second cam 55, the sliding plate 65 drives all the connecting plates 66 and the pusher plate 7 to move back and forth in the horizontal direction. On the one hand, it can drive the air flow and the dry sludge to tumble, which is conducive to better combustion of the dry sludge. On the other hand, the pusher plate 7 will gradually push the burning dry sludge and the ash produced by the burning dry sludge downwards, and finally fall out from the discharge port 14.

[0051] In this embodiment of the invention, a temperature sensor can be installed in the combustion chamber to monitor the temperature in the combustion chamber in real time. At the same time, a control panel is installed on the incinerator 1 to display the temperature of the temperature sensor in real time. By detecting the temperature in the combustion chamber 11, the combustion efficiency of the dry sludge can be fed back. Then, the feed rate of the drying tube 2 can be manually controlled, and the uniform feeding mechanism can automatically and evenly add the dry sludge into the combustion chamber 11. The overall structure is simple, occupies a small area, has high heat utilization rate, and high combustion efficiency.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A feedback-controlled automated sludge treatment device, characterized in that: The device includes an incinerator with an inner cavity. A partition is installed inside the incinerator, which divides the inner cavity of the incinerator into a combustion chamber and a temporary storage chamber. A drying pipe is inclinedly installed in the combustion chamber. The high end of the drying pipe protrudes outside the combustion chamber to form a feed end, and the low end extends into the temporary storage chamber to form a discharge end. A material leveling mechanism is installed in the temporary storage chamber to send the dried sludge into the combustion chamber. An exhaust pipe protrudes from the combustion chamber or the temporary storage chamber on the drying pipe. The material leveling mechanism includes a first guide plate, a second guide plate, and a guide platform. The first guide plate is located below the discharge end of the drying pipe and is inclined from top to bottom away from the drying pipe. The second guide plate is located below the lower end of the first guide plate and is inclined from top to bottom towards the drying pipe. The guide platform is inclinedly arranged in the temporary storage chamber and located below the second guide plate. The lower end of the guide platform extends into the combustion chamber. The second guide plate is provided with a material leveling component, which is used to quantitatively feed the dried sludge into the combustion chamber. The material leveling assembly includes a U-shaped frame, the web of which is rotatably mounted on the side wall of the second guide plate. The opening of the U-shaped frame faces the combustion chamber. The length of the upper wing of the U-shaped frame is greater than the length of the lower wing. The free end of the upper wing of the U-shaped frame is provided with a first lateral extension section, and the free end of the lower wing is provided with a second lateral extension section. Both the first and second lateral extension sections extend towards the second guide plate. A first baffle plate is provided at the bottom of the first lateral extension section, and a second baffle plate is provided at the top of the second lateral extension section. A through slot is provided on the second guide plate for the second baffle plate to pass through. A drive assembly for driving the U-shaped frame to swing up and down is provided in the temporary storage chamber. The first baffle plate and the second baffle plate are staggered in the vertical direction; A tension spring is installed inside the drying tube. One end of the tension spring is fixedly connected to the inner wall of the drying tube, and the other end is fixed with a pull rope extending out of the drying tube. A linkage component for driving the pull rope to pull the tension spring is installed in the temporary storage chamber. The linkage assembly includes several pulleys located above the drying pipe and installed on the inner wall of the temporary storage chamber. The end of the pull rope away from the tension spring passes around all the pulleys in sequence and is fixedly connected to the top of the upper wing plate of the U-shaped frame. The drive assembly includes a drive component, a rotating shaft, and a first cam. The drive component is installed on the side wall of the temporary storage chamber. One end of the rotating shaft is fixedly connected to the output end of the drive component. The first cam is fixedly sleeved on the rotating shaft, and the edge of the first cam contacts the bottom of the lower wing plate of the U-shaped frame. A combustion frame is provided at the lower end of the guide platform in the combustion chamber. The combustion frame is inclined from top to bottom away from the guide platform. The combustion frame includes two parallel and spaced support plates. Several horizontal plates are fixed at equal intervals between the support plates along the length of the support plates. The several horizontal plates are stepped. A pusher plate is slidably installed on the top of each horizontal plate. The pusher plate seals the gap between two adjacent horizontal plates. A power component for driving the pusher plate to move left and right is provided in the temporary storage chamber. The combustion chamber is slidably connected to a sliding plate below the combustion frame. Each pusher plate has a connecting plate at one end near the temporary storage chamber, with the other end connected to the sliding plate. A transmission rod is fixed to one end of the sliding plate, extending into the temporary storage chamber. The power assembly includes a second cam, a rotating rod, and a synchronous belt. The rotating rod is rotatably installed in the temporary storage chamber, and its axis is parallel to the axis of the rotating shaft. The synchronous belt is sleeved on the surface of the rotating rod and the rotating shaft. The second cam is fixedly sleeved on the rotating rod. A hemispherical protrusion is fixed to the end of the transmission rod away from the combustion chamber. The hemispherical protrusion contacts the edge of the second cam. A mounting plate is movably connected to the surface of the transmission rod. A spring is fitted onto the surface of the transmission rod. One end of the spring is fixedly connected to the side wall of the hemispherical protrusion, and the other end is fixedly connected to the mounting plate.

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