Sulfur combustion furnace capable of recycling waste heat

Abstract

The invention belongs to the technical field of sulfur combustion furnaces, and provides a waste heat recovery type sulfur combustion furnace which comprises a sulfur combustion furnace body and a recovery mechanism, a separation wall is arranged in the sulfur combustion furnace body, a combustion area and a settlement area are arranged at the two ends of the separation wall respectively, and an air outlet pipe is arranged on the outer wall of the settlement area; the recovery mechanism comprises a treatment hopper, a heat exchange system, a spiral dust remover, a rotating short shaft, a fixed rod, a vertical rod, an adjusting rod, a spring and a main scraper; one end of the air outlet pipe is connected into the treatment hopper and is connected with the spiral dust remover; the heat exchange system comprises a heat exchange cylinder, a flue gas pipe, a spiral baffle plate and a discharge main pipe. According to the waste heat recovery type sulfur combustion furnace, dust and other impurities can be conveniently removed, meanwhile, heat in tail gas is recycled, heat loss is avoided, energy is saved, and application and popularization are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of sulfur combustion furnaces, and particularly relates to a sulfur combustion furnace with waste heat recovery. Background Art

[0002] A sulfur combustion furnace is a device for converting sulfur into sulfur dioxide. Its working principle is to burn sulfur with oxygen, and then obtain pure sulfur dioxide through dust removal and cooling. The pure gas then enters the next reaction; During the combustion process of sulfur, a large amount of heat is generated, which is harmful to the subsequent processes. However, a large amount of dust sublimated sulfur and moisture are carried in sulfur dioxide. Ordinary equipment cannot solve the blockage caused by high temperature, sublimated sulfur and dust. Direct discharge causes heat loss and wastes a large amount of energy, which is not conducive to popularization and use. Summary of the Invention

[0004] Aiming at the defects in the prior art, the present invention provides a sulfur combustion furnace with waste heat recovery, which is convenient for removing impurities such as dust, and at the same time recovers and utilizes the heat in the tail gas, avoids heat loss, saves energy, and is conducive to popularization and use.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A sulfur combustion furnace with waste heat recovery includes a sulfur combustion furnace body and a recovery mechanism. An isolation wall is arranged inside the sulfur combustion furnace body, and a combustion area and a sedimentation area are respectively arranged at both ends of the isolation wall. A first filter plate and a second filter plate are sequentially arranged in the sedimentation area, and the pore diameter of the first filter plate is larger than that of the second filter plate; an air outlet pipe is arranged on the outer wall of the sedimentation area. The recovery mechanism includes a treatment hopper, a heat exchange system, a spiral dust collector, a rotating short shaft, a fixed rod, an adjusting rod, a spring and a main scraper. The spiral dust collector is arranged at the upper part of the inner wall of the treatment hopper, and one end of the air outlet pipe is connected to the inside of the treatment hopper and connected to the spiral dust collector. Bearings are arranged at the bottom of the treatment hopper. A plurality of rotating short shafts are arranged, and the rotating short shafts are sequentially connected; one end of the rotating short shaft arranged at the lowermost end penetrates through the bearing to the lower part of the treatment hopper, and a jack is arranged on the outer wall of the rotating short shaft arranged at the uppermost end. One end of the fixed rod is installed in the jack, the other end of the fixed rod is provided with a mounting plate, and an adjusting hole is arranged at the end of the mounting plate. One end of the adjusting rod passes through the adjusting hole to the upper part of the mounting plate. A locking nut is arranged at the end of the adjusting rod, and the main scraper is arranged at the end of the adjusting rod. A spring is sleeved on the outer wall of the adjusting rod, and the spring is correspondingly arranged between the mounting plate and the main scraper. The heat exchange system includes a heat exchange cylinder, a flue gas pipe, a spiral baffle plate and a discharge main pipe. The heat exchange cylinder is arranged above the treatment hopper. A buffer area is arranged at the bottom of the heat exchange cylinder, and the output end of the spiral dust collector is connected to the buffer area. The spiral baffle plate is arranged inside the heat exchange cylinder, and the discharge main pipe penetrates through the outer wall of the heat exchange cylinder. One end of the flue gas pipe passes through the spiral baffle plate and is connected to the buffer area, and the other end of the flue gas pipe is connected to the discharge main pipe.

[0006] As an improved technical solution, collection ports are arranged at the bottoms of the first filter plate and the second filter plate.

[0007] As an improved technical solution, a cold water inlet pipe and a hot water outlet pipe are respectively arranged at the upper and lower ends of the heat exchange cylinder, and a heat preservation sleeve is arranged on the outer wall of the heat exchange cylinder. A temperature sensor is arranged on the inner wall of the heat exchange cylinder, a display screen is arranged on the outer wall of the heat exchange cylinder, and the display screen is wirelessly connected to the temperature sensor.

[0008] As an improved technical solution, a clamping groove is arranged at the bottom of the main scraper, an adjusting scraper is arranged at one end of the main scraper, and one end of the adjusting scraper is correspondingly slidably arranged in the clamping groove. There are two adjusting scrapers, and the adjusting scrapers are respectively arranged at two opposite side ends of the main scraper.

[0009] As an improved technical solution, there are two adjusting holes, and the adjusting holes are respectively arranged at two opposite ends of the mounting plate. There are two adjusting rods, and the adjusting rods are arranged in one-to-one correspondence with the adjusting holes.

[0010] As an improved technical solution, a clear water part is arranged in the treatment hopper. The clear water part includes a cleaning water pipe, a clear water ring and a spray head. The clear water ring is arranged at the upper end of the treatment hopper, and the spray head is obliquely and circularly arranged at the lower end of the clear water ring. One end of the cleaning water pipe penetrates into the treatment hopper and is connected to the clear water ring.

[0011] As an improved technical solution, a collection port is arranged at the bottom of the treatment hopper, a sealing door is hinged on the side of the collection port, and an observation window is arranged on the outer wall of the sealing door.

[0012] As an improved technical solution, a connecting sleeve is sleeved on the outer wall of the rotating short shaft, and both ends of the connecting sleeve are respectively sleeved on the ends of the adjacent rotating short shafts; Threaded through holes are provided on the outer wall of the connecting sleeve, and threaded posts are arranged in the threaded through holes.

[0013] As an improved technical solution, a support frame is arranged at the lower end of the treatment hopper, a motor is arranged at the bottom of the support frame, and the motor is connected to the rotating short shaft; a frequency converter is arranged on the side of the motor, and the frequency converter is electrically connected to the motor.

[0014] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects: 1. For the sulfur combustion furnace with waste heat recovery, the sedimentation area and the spiral dust collector are arranged to remove impurities such as dust in the tail gas; the heat exchange system is arranged to recover and utilize the heat in the tail gas, avoid heat loss and save energy, which is conducive to popularization and use.

[0015] 2. For the sulfur combustion furnace with waste heat recovery, the adjusting rod and the spring are arranged to elastically fix the main scraper, which is beneficial for the main scraper to continue to contact the inner wall of the treatment hopper and ensure the scraping effect.

[0016] 3. For the sulfur combustion furnace with waste heat recovery, the first filter plate and the second filter plate are arranged to perform primary filtration and sedimentation on the impurities in the tail gas.

[0017] 4. For the sulfur combustion furnace with waste heat recovery, the adjusting scraper is arranged to facilitate scraping and cleaning of treatment hoppers of different specifications, increasing the application range of the sulfur combustion furnace.

[0018] 5. For the sulfur combustion furnace with waste heat recovery, the clear water part is arranged to facilitate flushing the inner wall of the treatment hopper, greatly improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 It is a structural schematic diagram of a sulfur combustion furnace with waste heat recovery; Figure 2 It is a structural schematic diagram of the sulfur combustion furnace body; Figure 3 It is a structural schematic diagram of the recovery mechanism; Figure 4 It is a schematic structural diagram of a heat exchange system; Figure 5 It is a schematic installation diagram of the main scraper; Figure 6 It is a schematic installation diagram of the rotating short shaft; Figure 7 It is a schematic structural diagram of the treatment hopper.

[0021] In the attached drawings, 1 is the main body of the sulfur combustion furnace, 11 is the partition wall, 12 is the combustion zone, 13 is the sedimentation zone, 131 is the gas outlet pipe, 132 is the first filter plate, 133 is the second filter plate, 134 is the cleaning port, 2 is the recovery mechanism, 21 is the treatment hopper, 211 is the bearing, 3 is the heat exchange system, 22 is the spiral dust collector, 23 is the rotating short shaft, 231 is the jack, 24 is the fixed rod, 241 is the mounting plate, 242 is the adjustment hole, 243 is the locking nut, 25 is the adjustment rod, 26 is the spring, 27 is the main scraper, 271 is the card slot, 31 is the heat exchange cylinder, 311 is the cold water inlet pipe, 312 is the hot water outlet pipe, 313 is the heat preservation sleeve, 32 is the flue gas pipe, 33 is the spiral baffle, 34 is the discharge main pipe, 35 is the buffer zone, 4 is the temperature sensor, 41 is the display screen, 5 is the adjustment scraper, 6 is the clean water part, 61 is the cleaning water pipe, 62 is the clean water ring, 63 is the nozzle, 7 is the collection port, 71 is the sealing door, 72 is the observation window, 8 is the connecting sleeve, 81 is the threaded through hole, 82 is the threaded post, 9 is the support frame, 91 is the motor, 92 is the frequency converter. Specific embodiments

[0022] The technical solution of the present invention will be described in detail below in combination with specific embodiments. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0023] Embodiment 1 As shown in Figure 1-2 , 4, and 7, the present invention provides a sulfur combustion furnace with waste heat recovery, which includes the main body 1 of the sulfur combustion furnace and the recovery mechanism 2. A partition wall 11 is arranged in the main body 1 of the sulfur combustion furnace. The combustion zone 12 and the sedimentation zone 13 are respectively arranged at both ends of the partition wall 11. The arrangement of the partition wall 11 ensures the combustion in the combustion zone 12; a channel is arranged at the upper end of the partition wall 11, and then the generated tail gas directly enters the sedimentation zone 13; this will not be elaborated in detail in this embodiment; The gas outlet pipe 131 is arranged on the outer wall of the sedimentation zone 13, and the gas outlet pipe 131 is arranged for the transportation of the tail gas; A first filter plate 132 and a second filter plate 133 are successively arranged in the sedimentation area 13. The pore diameter of the first filter plate 132 is larger than that of the second filter plate 133. Cleaning ports 134 are arranged at the bottoms of both the first filter plate 132 and the second filter plate 133, facilitating the collection of the impurities filtered and dropped through the cleaning ports 134. The recycling mechanism 2 includes a treatment hopper 21, a heat exchange system 3, a spiral dust collector 22, a rotating short shaft 23, a fixed rod 24, an adjusting rod 25, a spring 26, and a main scraper 27. A spiral dust collector 22 is arranged at the upper part of the inner wall of the treatment hopper 21. One end of the air outlet pipe 131 is connected into the treatment hopper 21 and connected to the spiral dust collector 22. A bearing 211 is arranged at the bottom of the treatment hopper 21. A plurality of rotating short shafts 23 are arranged and are successively connected. One end of the rotating short shaft 23 at the lowermost end penetrates through the bearing 211 to the lower part of the treatment hopper 21, and a jack 231 is arranged on the outer wall of the rotating short shaft 23 at the uppermost end. One end of the fixed rod 24 is installed in the jack 231. The other end of the fixed rod 24 is provided with a mounting plate 241, and an adjusting hole 242 is arranged at the end of the mounting plate 241. The jack 231 is used for the installation of the fixed rod 24. One end of the adjusting rod 25 penetrates through the adjusting hole 242 to the upper part of the mounting plate 241. A locking nut 243 is arranged at the end of the adjusting rod 25, and a main scraper 27 is arranged at the end of the adjusting rod 25. The outer wall of the adjusting rod 25 is sleeved with a spring 26, and the spring 26 is correspondingly arranged between the mounting plate 241 and the main scraper 27. The arrangement of the adjusting rod 25 and the spring 26 can elastically fix the main scraper 27, facilitating the continuous contact between the main scraper 27 and the inner wall of the treatment hopper 21 and ensuring the scraping effect. The heat exchange system 3 includes a heat exchange cylinder 31, a flue gas pipe 32, a spiral baffle 33, and a discharge main pipe 34. The heat exchange cylinder 31 is arranged at the upper part of the treatment hopper 21. A buffer area 35 is arranged at the bottom of the heat exchange cylinder 31. The output end of the spiral dust collector 22 is connected to the buffer area 35. A spiral baffle 33 is arranged inside the heat exchange cylinder 31, and a discharge main pipe 34 penetrates through the outer wall of the heat exchange cylinder 31. One end of the flue gas pipe 32 penetrates through the spiral baffle 33 and is connected to the buffer area 35, and the other end of the flue gas pipe 32 is connected to the discharge main pipe 34. A cold water inlet pipe 311 and a hot water outlet pipe 312 are respectively arranged at the upper and lower ends of the heat exchange cylinder 31, and a heat preservation sleeve 313 is arranged on the outer wall of the heat exchange cylinder 31. A temperature sensor 4 is arranged on the inner wall of the heat exchange cylinder 31, and a display screen 41 is arranged on the outer wall of the heat exchange cylinder 31. The display screen 41 and the temperature sensor 4 are wirelessly connected. The arrangement of the temperature sensor 4 facilitates the perception of the specific temperature after the cold water is heated. A collection port 7 is provided at the bottom of the processing hopper 21, and a sealing door 71 is hingedly provided on the side of the collection port 7; an observation window 72 is provided on the outer wall of the sealing door 71; A support frame 9 is provided at the lower end of the processing hopper 21, a motor 91 is provided at the bottom of the support frame 9, and the motor 91 is connected to the rotating short shaft 23; a frequency converter 92 is provided on the side of the motor 91, and the frequency converter 92 and the motor 91 are electrically connected. The frequency converter 92 is provided to adjust the rotation speed of the motor 91; The usage process of the above sulfur combustion furnace is as follows: First, adjust and install the main scraper 27. During installation, rotate the lock nut 243, move the adjusting rod 25 up and down along the adjusting hole 242. When the adjusting rod 25 moves, it drives the main scraper 27 to move until the lower end of the main scraper 27 contacts the inner wall of the processing hopper 21; Rotate the lock nut 243 in the reverse direction to lock and limit the adjusting rod 25. At the same time, the spring 26 can elastically fix the main scraper 27, which is beneficial for the main scraper 27 to continue contacting the inner wall of the processing hopper 21 and ensuring the scraping effect; During use, add sulfur ore into the sulfur combustion furnace body 1 for heating and combustion. The above operations generate a large amount of tail gas, and the tail gas enters the sedimentation area 13 through the through hole; Then, filter and settle impurities and dust of different diameters through the first filter plate 132 and the second filter plate 133 in sequence. The filtered impurities and dust directly fall to the bottom of the sedimentation area 13, which is convenient for subsequent personnel to collect and process through the cleaning port 134; The filtered tail gas enters the processing hopper 21, start the spiral dust collector 22, perform dust removal operations through the spiral dust collector 22. The processed tail gas enters the buffer area 35, then enters the exhaust main pipe 34 along the smoke pipe 32, and finally performs the exhaust operation through the exhaust main pipe 34; Add cold water into the heat exchange cylinder 31 through the cold water inlet pipe 311. The tail gas enters the smoke pipe 32 to heat the cold water inside the heat exchange cylinder 31. After heating, the cold water becomes hot water, and the hot water is discharged through the hot water outlet pipe 312 for circulating heating; The dust in the processing hopper 21 falls to the bottom of the processing hopper 21, and the sealing door 71 is opened to collect through the collection port 7; After using for a period of time, it is necessary to clean the inner wall of the processing hopper 21. Start the motor 91, the motor 91 drives the rotating short shaft 23 to rotate, the rotating short shaft 23 drives the fixed rod 24 to rotate, and the fixed rod 24 drives the spring 26 and the main scraper 27 to rotate and scrape the inner wall of the processing hopper 21 until the cleaning operation of the inner wall of the processing hopper 21 is completed, which is convenient for subsequent use.

[0024] Embodiment Two Such as Figure 5As shown in the figure, the present invention provides a sulfur combustion furnace with waste heat recovery. A card slot 271 is provided at the bottom of the main scraper 27. One end of the main scraper 27 is provided with an adjusting scraper 5, and one end of the adjusting scraper 5 is correspondingly slidably arranged in the card slot 271; There are two adjusting scrapers 5, and the adjusting scrapers 5 are respectively arranged at two opposite side ends of the main scraper 27. The two adjusting scrapers 5 are used to adjust the dimensions of the two ends of the main scraper 27, which is convenient for cleaning treatment hoppers 21 of different specifications; There are two adjusting holes 242, and the adjusting holes 242 are respectively arranged at two opposite ends of the mounting plate 241; there are two adjusting rods 25, and the adjusting rods 25 are arranged in one-to-one correspondence with the adjusting holes 242; the two adjusting rods 25 are provided to increase the stability of the main scraper 27 during operation; In order to meet treatment hoppers 21 of different specifications, the dimensions of the main scraper 27 need to be adjusted. During adjustment, the adjusting scraper 5 moves along the card slot 271 of the main scraper 27 until the scraping range is consistent with the inner wall of the treatment hopper 21, and finally the adjusting scraper 5 is locked; the above locking method can set a threaded hole on the outer wall of the main scraper 27, and finally the adjusting scraper 5 is locked and limited by a screw. Since it is a conventional technical means, it will not be described in detail in this embodiment.

[0025] Embodiment Three As Figure 3 shown in the figure, the present invention provides a sulfur combustion furnace with waste heat recovery. A clean water part 6 is arranged in the treatment hopper 21. The clean water part 6 includes a cleaning water pipe 61, a clean water ring 62 and a nozzle 63. The clean water ring 62 is arranged at the upper end of the treatment hopper 21, and the nozzles 63 are obliquely arranged around the lower end of the clean water ring 62; one end of the cleaning water pipe 61 penetrates into the treatment hopper 21 and is connected to the clean water ring 62; In order to improve the cleaning effect, when scraping the inner wall of the treatment hopper 21, an external pressurized water pipe is connected to the cleaning water pipe 61. The external pressure pushes the clean water to enter the clean water ring 62 along the cleaning water pipe 61, and finally the interior of the treatment hopper 21 is sprayed through the nozzles 63, and the inner wall of the treatment hopper 21 is cleaned with clean water.

[0026] Embodiment Four As Figure 6 shown in the figure, the present invention provides a sulfur combustion furnace with waste heat recovery. There are several rotating short shafts 23, and the rotating short shafts 23 are connected in sequence; in order to improve the scope of use, the installation position of the main scraper 27 can be adjusted to facilitate the use of treatment hoppers 21 of different specifications, and an appropriate number of rotating short shafts 23 can be selected for connection; A connecting sleeve 8 is sleeved on the outer wall of the rotating short shaft 23, and both ends of the connecting sleeve 8 are respectively sleeved on the ends of adjacent rotating short shafts 23; The outer wall of the connecting sleeve 8 is provided with a threaded through hole 81, and a threaded post 82 is arranged in the threaded through hole 81; when connecting, the adjacent rotating short shafts 23 are connected through the connecting sleeve 8, and the threaded post 82 is rotated to lock the rotating short shaft 23 through the threaded post 82, effectively preventing the occurrence of slipping accidents of the rotating short shaft 23.

[0027] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A sulfur combustion furnace capable of recovering waste heat, characterized in that: It comprises a sulfur combustion furnace body and a recovery mechanism, wherein a partition wall is arranged in the sulfur combustion furnace body, and a combustion zone and a settling zone are arranged at both ends of the partition wall respectively; a first filter plate and a second filter plate are arranged in sequence in the settling zone, and the mesh diameter of the first filter plate is larger than the mesh diameter of the second filter plate; an air outlet pipe is arranged on the outer wall of the settling zone; The recovery mechanism includes a processing bucket, a heat exchange system, a spiral dust collector, a rotating short shaft, a fixing rod, an adjusting rod, a spring and a main scraper. The spiral dust collector is arranged on the upper part of the inner wall of the processing bucket, and one end of the air outlet pipe is connected to the processing bucket and connected to the spiral dust collector. A bearing is arranged at the bottom of the processing bucket, and a plurality of rotating short shafts are arranged, and the rotating short shafts are arranged in sequence; one end of the rotating short shaft arranged at the lowest end passes through the bearing to the lower part of the processing bucket, and a plug hole is arranged on the outer wall of the rotating short shaft arranged at the highest end; One end of the fixing rod is installed in the jack, a mounting plate is arranged at the other end of the fixing rod, and an adjustment hole is arranged at the end of the mounting plate; One end of the adjusting rod passes through the adjusting hole to the upper part of the mounting plate, a locking nut is arranged at the end of the adjusting rod, and the main scraper is arranged at the end of the adjusting rod; the spring is sleeved on the outer wall of the adjusting rod, and the spring is correspondingly arranged between the mounting plate and the main scraper; The heat exchange system comprises a heat exchange cylinder, a flue gas pipe, a spiral baffle and a discharge main pipe, wherein the heat exchange cylinder is arranged on the upper part of the processing bucket; a buffer area is arranged at the bottom of the heat exchange cylinder, and the output end of the spiral dust collector is connected to the buffer area; The spiral baffle is arranged inside the heat exchange tube, and the exhaust pipe is penetrated through the outer wall of the heat exchange tube; one end of the flue gas pipe penetrates the spiral baffle and is connected to the buffer area, and the other end of the flue gas pipe is connected to the exhaust pipe.

2. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: The bottoms of the first filter plate and the second filter plate are both provided with collecting ports.

3. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: A cold water inlet pipe and a hot water outlet pipe are respectively arranged at the upper and lower ends of the heat exchange tube, and a heat insulation sleeve is arranged on the outer wall of the heat exchange tube; A temperature sensor is arranged on the inner wall of the heat exchange cylinder, a display screen is arranged on the outer wall of the heat exchange cylinder, and the display screen and the temperature sensor are wirelessly connected.

4. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: A slot is provided at the bottom of the main scraper, an adjusting scraper is provided at one end of the main scraper, and one end of the adjusting scraper is correspondingly slidably provided in the slot; The regulating scrapers are provided with two, and the regulating scrapers are respectively arranged at two opposite side ends of the main scraper.

5. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: There are two adjustment holes, and the adjustment holes are respectively arranged at two opposite ends of the mounting plate; there are two adjustment rods, and the adjustment rods are arranged opposite to the adjustment holes one by one.

6. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: A clean water part is arranged in the processing bucket, and the clean water part includes a clean water pipe, a clean water ring and a nozzle. The clean water ring is arranged at the upper end of the processing bucket, and the nozzle is arranged obliquely around the lower end of the clean water ring; one end of the clean water pipe passes through the processing bucket and is connected with the clean water ring.

7. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: A collecting port is arranged at the bottom of the processing bucket, and a sealing door is hingedly arranged on the side of the collecting port; an observation window is arranged on the outer wall of the sealing door.

8. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: The outer wall of the rotating short shaft is provided with a connecting sleeve, and the two ends of the connecting sleeve are respectively and correspondingly sleeved on the ends of the adjacent rotating short shafts; A threaded through hole is arranged on the outer wall of the connecting sleeve, and a threaded column is arranged in the threaded through hole.

9. The sulfur combustion furnace capable of recovering waste heat according to claim 1, characterized in that: A support frame is arranged at the lower end of the processing bucket, a motor is arranged at the bottom of the support frame, and the motor is connected with the rotating short shaft; a frequency converter is arranged at the side of the motor, and the frequency converter is electrically connected with the motor.

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