Deslagging device of oiling reaction kettle
Through the design residue device in the oily reactor kettle, the heat exchange effect of stirring and cold water solution is used to solve the problem of incomplete discharge and the calorie recycling of the waste residue, realize efficient cooling and heat recovery, improve work efficiency and economic benefits At the same time, environmental pollution is reduced.
Patent Information
- Application Number
- CN202411859388.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-01-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the slag discharge process, the existing oil-chemical reactors have problems such as waste slag not being completely discharged, high temperature needs to be cooled, resulting in low working efficiency and high economic costs, and the heat in the waste slag cannot be effectively recycled, causing environmental pollution.
A kind of oily reactor residue device is designed. The waste residue is stirred through the stirring drive component and discharged through the residue tube.
The rapid cooling and heat recovery of waste residue were achieved, and the energy utilization rate and economic benefits were improved, and the pollution of the atmosphere was reduced.
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Figure CN119368132A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of oil decomposition, and in particular relates to a slag discharge device for an oil reaction kettle. Background Art
[0002] In the existing process, waste plastics are transported to a reactor through a feeding device, and the reactor is heated by a heating device so that the waste plastics are heated and cracked in the reactor. The oil (diesel, gasoline) in the oil smoke is fractionated through a distillation device to achieve the purpose of decomposing the waste plastics and recovering the oil. After the decomposition is completed, the waste residue needs to be discharged.
[0003] The existing method is to discharge the waste slag by opening a slag discharge port at the bottom of the reactor, which causes incomplete discharge of the waste slag in the reactor, and the temperature of the waste slag is high, and it needs to be cooled by cooling equipment, which reduces work efficiency and increases economic costs. In addition, the waste slag contains waste heat and flue gas, which is easy to leak through the slag discharge valve, causing environmental damage. Summary of the invention
[0004] In view of this, the present invention provides a slag discharge device for an oil chemical reactor, wherein the slag discharge valve device is operated to open the slag discharge port, and the stirring driving component is started to drive the first stirring rod and the arc-shaped stirring rod through the first stirring shaft to stir the waste slag in the reactor, and discharge the waste slag from the slag discharge port. Under the action of the slag discharge device, the waste slag is discharged through the slag discharge pipe. When the waste slag moves in the slag discharge pipe, cold water enters the tubular water tank through the first liquid inlet pipe and moves along the outer wall of the slag discharge pipe. The waste slag is cooled by heat exchange in the slag discharge pipe. At the same time, the cold water is heated and discharged through the first liquid discharge pipe for standby use, thereby realizing rapid cooling of the waste slag and recycling the heat in the waste slag, thereby improving energy utilization and economic benefits and reducing pollution to the atmosphere.
[0005] The technical scheme is as follows: a slag discharge device for an oil chemical reactor, comprising a reactor and a slag discharge device, a slag discharge port is provided at a lower end of one side of the reactor, a stirring device is rotatably installed on the reactor, the stirring device comprises a first stirring shaft rotatably installed on the reactor, the first stirring shaft extends and inserts into the reactor, and a first stirring rod is arranged on the first stirring shaft, an arc-shaped stirring rod is arranged at the end of the first stirring shaft, a stirring driving component for driving the first stirring shaft to rotate is arranged on the reactor, a slag discharge valve device is sealably installed on the reactor, the slag discharge valve device comprises a valve housing sealably installed at the slag discharge port of the reactor, a valve cavity is arranged in the valve housing, a plugging member is slidably installed in the valve cavity, the slag discharge valve device also comprises a driving mechanism, the driving mechanism is transmission-connected to the plugging member through a transmission shaft, and starting the driving mechanism drives the plugging member to move along the plugging cavity through the transmission shaft, so as to realize closing and opening of the slag discharge port; The slag discharge device includes a slag discharge pipe, which is sealed and connected to the valve cavity through a slag discharge branch pipe. A spiral slag discharge mechanism is rotatably installed in the slag discharge pipe. A slag discharge driving component is detachably installed on the outer wall of the slag discharge pipe. The slag discharge driving component is started to drive the spiral slag discharge mechanism to discharge the waste slag dropped from the slag discharge branch pipe. A tubular water tank is sealed on the outer wall of the slag discharge pipe. The inner wall of the tubular water tank and the outer wall of the slag discharge pipe form a water cavity. A first liquid inlet pipe for inputting cold water and a first liquid discharge pipe for outputting liquid water are provided on the water cavity.
[0006] During use of the above technical solution: operate the slag discharge valve device to open the slag discharge port, start the stirring drive component to drive the first stirring rod and the arc-shaped stirring rod through the first stirring shaft to stir the waste slag in the reactor, and discharge it from the slag discharge port. Under the action of the slag discharge device, the waste slag is discharged through the slag discharge pipe. When the waste slag moves in the slag discharge pipe, the cold water enters the tubular water tank through the first liquid inlet pipe and moves along the outer wall of the slag discharge pipe. The waste slag is cooled by heat exchange in the slag discharge pipe. At the same time, the cold water is heated and discharged through the first liquid discharge pipe for standby use, thereby realizing rapid cooling of the waste slag and recycling the heat in the waste slag, thereby improving energy utilization and economic benefits and reducing pollution to the atmosphere.
[0007] Preferably, a first piston cavity is fixedly provided on one side of the slag discharge cavity away from the slag discharge port, one end of the blocking member seals the slag discharge port, and the other end is sealingly and slidably installed in the first piston cavity.
[0008] During use of the above technical solution: the slag discharge cavity is sealed by the sealing piece. When the sealing piece is operated to open the slag discharge port, the other end of the sealing piece seals and slides in the first piston cavity to prevent impurities or smoke in the waste slag from being discharged through the slag discharge valve device and causing environmental pollution.
[0009] Preferably, a shaft sealing device is provided between the slag discharge shell and the driving mechanism, and the transmission shaft seal is slidably installed in the shaft sealing device, so that the smoke in the waste slag is prevented from being discharged through the gap between the slag discharge shell and the transmission shaft through the shaft sealing device.
[0010] Preferably, the shaft sealing device comprises a shaft sealing sleeve sealingly mounted on the valve housing, wherein a plurality of heat-resistant smoke-isolating disc layers are linearly and evenly mounted in the shaft sealing sleeve, and the plurality of heat-resistant smoke-isolating disc layers are provided with bearing holes for the transmission shaft seal to slide through.
[0011] Preferably, the shaft sealing sleeve is sealingly connected to the valve housing via a connecting flange, and a heat-resistant sealing member is arranged between the connecting flange and the valve housing, a support frame is fixedly arranged between two adjacent heat-resistant smoke isolation disk layers in the shaft sealing sleeve, and a lubricant is filled in the gap between two adjacent heat-resistant smoke isolation disk layers.
[0012] During use of the above technical solution: operate the sealing member to open the slag discharge port, and the waste heat and oil smoke in the waste slag is blocked by multiple heat-resistant smoke isolation disc layers in the shaft seal sleeve to prevent the waste heat and oil smoke from leaking through the slag discharge valve device and causing damage to the environment.
[0013] Preferably, the driving mechanism includes a second piston cavity sealed and installed on the slag discharge valve device, a piston plate is sealingly and slidably installed in the second piston cavity, the second piston cavity is divided into a first cavity and a second cavity by the piston plate, the transmission shaft is connected and fixed to the piston plate, an elastic component for sealing the slag discharge port with the sealing member is arranged between the piston plate and the second piston cavity, a first connecting pipe is sealingly installed at one end of the second cavity of the second piston cavity close to the sealing member, the other end of the first connecting pipe is sealingly connected to a pump body for increasing the pressure in the second cavity, starting the pump body to increase the pressure in the second cavity pushes the piston plate to move to the side away from the sealing member, and the sealing member will be driven away from the slag discharge port through the transmission shaft.
[0014] During use, the above technical solution is sealed and connected to the valve housing through the driving mechanism, and the sealing piece is pushed to seal the slag discharge port through the elastic component to prevent the slag discharge port from opening automatically when the power is off or there is a problem with the driving mechanism, thereby affecting normal use. The pump body is started to increase the pressure in the second chamber to push the piston plate to the side away from the sealing piece, and the sealing piece will be driven away from the slag discharge port through the transmission shaft. The operation is simple and quick, and it has the function of preventing the leakage of waste liquid and smoke.
[0015] Preferably, the second cavity is sealed and connected to the input end of the pump body through a second connecting pipe, and the first cavity and the second cavity are sealed and connected through a third connecting pipe. The third connecting pipe is provided with a first valve, and the first connecting pipe is provided with a pressure gauge, which is electrically connected to the pump body. The pump body is started according to the pressure gauge to adjust the pressure in the second cavity, and the size of the gap between the sealing part and the slag discharge port is adjusted.
[0016] During use of the above technical solution: the pump body is started according to the pressure gauge to adjust the pressure in the second chamber, the size of the gap between the sealing part and the slag discharge port is adjusted, and the amount of slag discharge is adjusted, so that the waste slag accumulated at the bottom of the reactor can be slowly discharged without stopping the machine.
[0017] Preferably, the first liquid inlet pipe is arranged at the lower end of the tubular water tank close to the slag discharge branch pipe, and the first liquid discharge pipe is arranged at the upper end of the tubular water tank away from the slag discharge branch pipe. A flow valve body is installed at the input end of the first liquid inlet pipe, and the other end of the flow valve body is connected to a cold water filling pipe for inputting cold water. A temperature sensor for detecting the temperature inside the pipe is arranged at the end of the slag discharge pipe away from the slag discharge branch pipe, and the temperature sensor is electrically connected to the flow valve body through a controller.
[0018] During use of the above technical solution: the temperature of the waste slag transported through the slag discharge pipe is detected in real time by a temperature sensor, and the data is transmitted to the controller. The flow valve is controlled by the controller to adjust the flow of the cold water liquid to achieve the temperature control function. At the same time, the cold water liquid enters the tubular water tank through the first liquid inlet pipe. After filling the tubular water tank, it is discharged through the first liquid discharge pipe, thereby improving the function of uniformly cooling the waste slag in the slag discharge pipe and improving the heat exchange effect.
[0019] The reactor comprises an outer reactor body and an inner reactor body, a heat exchange cavity is formed between the outer reactor body and the inner reactor body, a heating device is arranged on the reactor, the heating device is sealed and connected with the heat exchange cavity through an air inlet pipe, an exhaust pipe is arranged on the heat exchange cavity, a third valve is arranged on the air inlet pipe and the exhaust pipe, a second liquid inlet pipe is sealed and connected to the first liquid inlet pipe, a second liquid discharge pipe is arranged on the upper end of one side of the heat exchange cavity close to the first liquid discharge pipe, and a second valve is arranged on the second liquid inlet pipe and the second liquid discharge pipe; The spiral slag discharge mechanism includes a rotating shaft rotatably mounted on the slag discharge pipe and a spiral slag discharge tooth fixedly mounted on the rotating shaft. The slag discharge driving component is connected to the rotating shaft through a transmission mechanism. A discharge pipe is provided at the lower end of the slag discharge pipe on the side away from the slag discharge branch pipe. First liquid infusion pipes are sealed and rotatably mounted at both ends of the rotating shaft. The first liquid infusion pipe close to the side of the slag discharge branch pipe is sealed and connected to the first liquid inlet pipe, and the other first liquid infusion pipe is sealed and connected to the first liquid discharge pipe. A second liquid infusion cavity is opened in the spiral slag discharge tooth, and the two ends of the second liquid infusion cavity are respectively connected to the first liquid infusion pipe through the first infusion cavity.
[0020] During use of the above technical solution: during the slag discharge process, the third valve is closed and the second valve is opened, and cold water enters the heat exchange cavity through the second liquid inlet pipe to preliminarily cool the waste slag in the inner kettle body of the reactor. At the same time, cold water enters the second liquid infusion cavity of the spiral slag discharge teeth through the first liquid infusion pipe, thereby increasing the effective area of heat exchange for the waste slag, thereby improving the efficiency of waste slag cooling, shortening the cooling time, and improving the efficiency of slag discharge.
[0021] Preferably, a second stirring shaft is rotatably installed in the first stirring shaft, the first stirring shaft is extended from both ends of the second stirring shaft, the arc-shaped stirring rod is fixedly installed at the lower end of the second stirring shaft, the arc-shaped stirring rod is provided with a scraping rod for scraping materials from the inner wall of the reactor, the scraping rod is fixedly arranged on the second stirring rod, the second stirring rod and the first stirring rod are staggered with each other, a main transmission gear is fixedly arranged at the output end of the stirring drive component, a first transmission gear is fixedly arranged on the first stirring shaft, and a second transmission gear is fixedly arranged on the second stirring shaft, the first transmission gear and the second transmission gear are both connected to the main transmission gear in transmission, and the first transmission gear and the second transmission gear are driven by the main transmission gear to rotate in opposite directions.
[0022] During use of the above technical solution: the main transmission gear drives the first transmission gear and the second transmission gear to rotate in opposite directions, thereby driving the first stirring rod and the second stirring rod to rotate in opposite directions and staggered, and at the same time scrapes off the sticky materials on the reactor, thereby improving the full stirring of the materials in the reactor, preventing the materials from rotating in the same direction, thereby affecting the decomposition efficiency, and improving the slag discharge efficiency, while preventing the waste slag from sticking to the reactor and being unable to be discharged cleanly.
[0023] After adopting the above technical solution, the beneficial effects of the present invention are: 1. Operate the slag discharge valve device to open the slag discharge port, start the stirring driving component to drive the first stirring rod and the arc stirring rod through the first stirring shaft to stir the waste slag in the reactor, and discharge it from the slag discharge port. Under the action of the slag discharge device, the waste slag is discharged through the slag discharge pipe. When the waste slag moves in the slag discharge pipe, the cold water enters the tubular water tank through the first liquid inlet pipe and moves along the outer wall of the slag discharge pipe. The waste slag is cooled by heat exchange in the slag discharge pipe. At the same time, the cold water is heated and discharged through the first liquid discharge pipe for standby use, so as to achieve rapid cooling of the waste slag and recycling of the heat in the waste slag, thereby improving energy utilization and economic benefits and reducing air pollution; 2. Prevent impurities or smoke in the waste slag from being discharged through the slag discharge valve device, causing environmental pollution; 3. The temperature of the waste slag transported through the slag discharge pipe is detected in real time by the temperature sensor, and the data is transmitted to the controller. The flow valve is controlled by the controller to adjust the flow of the cold water liquid to achieve the temperature control function. At the same time, the cold water liquid enters the tubular water tank through the first liquid inlet pipe. After filling the tubular water tank, it is discharged through the first liquid discharge pipe, thereby improving the function of uniformly cooling the waste slag in the slag discharge pipe and improving the heat exchange effect. 4. During the slag discharge process, the third valve is closed and the second valve is opened. Cold water enters the heat exchange cavity through the second liquid inlet pipe to initially cool the waste slag in the reactor. At the same time, cold water enters the second liquid infusion cavity of the spiral slag discharge teeth through the first liquid infusion pipe to increase the heat exchange area of the waste slag, thereby improving the efficiency of waste slag cooling, shortening the cooling time, and improving the efficiency of slag discharge; 5. The main transmission gear drives the first transmission gear and the second transmission gear to rotate in opposite directions, thereby driving the first stirring rod and the second stirring rod to rotate in opposite directions and staggered, and at the same time scraping off the sticky materials on the reactor, thereby improving the full stirring of the materials in the reactor and preventing the materials from rotating in the same direction, thereby affecting the decomposition efficiency, and improving the slag discharge efficiency, while preventing the waste slag from sticking to the reactor and being unable to be discharged cleanly. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention; Figure 3 It is a partial stereoscopic diagram of the slag discharge device of the present invention; Figure 4 This is a schematic diagram of the structure of the slag discharge valve device in the first embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the slag discharge valve device in the second embodiment of the present invention; Figure 6 It is a structural schematic diagram of the shaft sealing device of the present invention; Figure 7 It is a partial structural schematic diagram of the shaft sealing device of the present invention; Figure 8 It is a partial structural schematic diagram of the shaft sealing device of the present invention; Fig. 9 Schematic diagram of the structure of the driving mechanism in the fifth embodiment of the present invention; Fig.10 Schematic diagram of the structure of the driving mechanism in the sixth embodiment of the present invention; Fig.11 Schematic diagram of the structure of the driving mechanism in the seventh embodiment of the present invention; Fig.12 This is a schematic diagram of the structure of Embodiment 9 of the present invention; Fig.13 It is a structural schematic diagram of Example 10 of the present invention; Fig.14 For the present invention Fig.13 A partial enlarged view of the middle A; Fig.15 is a schematic cross-sectional structural diagram of the eleventh embodiment of the present invention; Fig.16 It is a schematic diagram of a partial structure of the eleventh embodiment of the present invention; In the figure, 1, reactor; 11, outer reactor body; 12, inner reactor body; 13, heat exchange cavity; 14, air inlet pipe; 15, air inlet; 16, exhaust pipe; 17, exhaust port; 18, oil discharge pipe; 19, distillation device; 110, charging pipe; 111, arc-shaped inner wall; 112, slag discharge port; 2, feeding device; 21, feeding pipe; 22, storage hopper; 23, spiral feeding mechanism; 24, feeding drive component; 3, stirring device; 31, first stirring shaft; 32, first stirring rod; 33, arc-shaped stirring rod; 34, stirring drive component; 35, installation Cavity; 36, second stirring shaft; 37, scraper rod; 38, second stirring rod; 39, first transmission gear; 310, second transmission gear; 311, main transmission gear; 4, heating device; 5, slag discharge valve device; 51, valve cavity; 52, first piston cavity; 53, valve housing; 54, transmission shaft; 55, driving mechanism; 56, plugging piece; 57, slag discharge branch pipe; 8, shaft sealing device; 81, shaft sealing sleeve; 82, heat-resistant smoke isolation disc layer; 83, shaft bearing hole; 84, connecting flange; 85, heat-resistant sealing member; 86, gap; 87, support frame; 551, second piston cavity; 552, first cavity; 553, exhaust hole; 554, fixing flange; 555, piston plate; 556, elastic component; 557, pump body; 558, first connecting pipe; 559, pressure gauge; 5510, second cavity; 5511, second connecting pipe; 5512, third connecting pipe; 5513, first valve; 5514, sealing sleeve; 6, slag discharge device; 61, slag discharge pipe; 62, slag discharge cavity; 63, spiral slag discharge mechanism; 64, slag discharge drive component; 65, slag inlet; 66, discharge pipe; 67, third transmission moving gear; 68, fourth transmission gear; 69, first infusion cavity; 610, first infusion tube; 611, sealing rotating connector; 612, first connection port; 613, second infusion cavity; 614, spiral slag removal teeth; 7, cooling device; 71, tubular water tank; 72, water cavity; 73, first inlet pipe; 74, first outlet pipe; 75, cold water adding pipe; 76, flow valve body; 77, controller; 78, temperature sensor; 79, second inlet pipe; 710, second valve; 711, third valve; 712, pressure limiting valve; 713, second outlet pipe; DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example
[0027] like Figures 1 to 16 As shown, a deslagging device for an oil-based reactor comprises a reactor 1 and a deslagging device 6. A deslagging port 112 is provided at a lower end of one side of the reactor 1. A stirring device 3 is rotatably mounted on the reactor 1. The stirring device 3 comprises a first stirring shaft 31 rotatably mounted on the reactor 1. The first stirring shaft 31 extends into the reactor 1, and a first stirring rod 32 is provided on the first stirring shaft 31. An arc-shaped stirring rod 33 is provided at the end of the first stirring shaft 31. A stirring driving component for driving the first stirring shaft 31 to rotate is provided on the reactor 1. 34. A slag discharge valve device 5 is sealed and installed on the reactor 1. The slag discharge valve device 5 includes a valve housing 53 which is sealed and installed at the slag discharge port 112 on the reactor 1. A valve cavity 51 is arranged in the valve housing 53. A plugging member 56 is slidably installed in the valve cavity 51. The slag discharge valve device 5 also includes a driving mechanism 55. The driving mechanism 55 is connected to the plugging member 56 through a transmission shaft 54. When the driving mechanism 55 is started, the plugging member 56 is driven to move along the plugging cavity through the transmission shaft 54, so as to close and open the slag discharge port 112. The slag discharge device 6 includes a slag discharge pipe 61, which is sealed and connected to the valve cavity 51 through a slag discharge branch pipe 57. A spiral slag discharge mechanism 63 is rotatably installed in the slag discharge pipe 61. A slag discharge driving component 64 is detachably installed on the outer wall of the slag discharge pipe 61. The slag discharge driving component 64 is started to drive the spiral slag discharge mechanism 63 to discharge the waste slag dropped from the slag discharge branch pipe 57. A tubular water tank 71 is sealed on the outer wall of the slag discharge pipe 61. The inner wall of the tubular water tank 71 and the outer wall of the slag discharge pipe 61 form a water cavity 72. A first liquid inlet pipe 73 for inputting cold water and a first liquid discharge pipe 74 for outputting liquid water are provided on the water cavity 72.
[0028] Specifically: the stirring drive component 34 is a stirring motor, and the output end of the stirring motor is connected and fixed to the first stirring shaft 31. When the stirring motor is started, the first stirring rod 32 and the arc stirring rod 33 are driven to rotate through the first stirring shaft 31. The driving mechanism 55 is an electric push rod or a hydraulic cylinder. The power end of the driving mechanism 55 is connected and fixed to the transmission shaft 54. A bearing hole for sealing and sliding the transmission shaft 54 is provided on the valve housing 53. The outer wall of the transmission shaft 54 fits with the bearing hole and realizes the axial sliding of the transmission shaft 54 in the bearing hole. The slag discharge driving component 64 is a driving motor. The spiral slag discharge mechanism 63 includes a rotating shaft rotatably mounted on the slag discharge pipe 61 and a spiral slag discharge tooth 614 fixedly mounted on the rotating shaft. The output end of the driving motor is connected and fixed to the rotating shaft. The other end of the slag discharge pipe 61 is connected to a storage bin.
[0029] In actual operation: the driving mechanism 55 is operated to drive the transmission shaft 54 to slide axially along the bearing hole of the valve housing 53, and the sealing member 56 is driven by the transmission shaft 54 to move along the valve cavity 51 and away from the slag discharge port 112, so that the slag discharge port 112 is connected with the slag discharge branch pipe 57 through the valve cavity 51, and the stirring motor is started to drive the first stirring rod 32 and the arc stirring rod 33 to rotate through the first stirring shaft 31, so that the waste slag in the reactor 1 is stirred and falls into the slag discharge branch pipe 57 through the slag discharge port 112, and finally enters the slag discharge pipe 61, and the driving motor is started to drive the first stirring rod 32 and the arc stirring rod 33 to rotate through the first stirring shaft 31, so as to stir the waste slag in the reactor 1, and the waste slag ... and finally The spiral slag discharge teeth 614 rotate to transport the waste slag that has fallen into the slag discharge pipe 61 through the slag discharge branch pipe 57 to the other side, and finally falls into the storage bin. When the waste slag moves in the slag discharge pipe 61, the cold water enters the tubular water tank 71 through the first liquid inlet pipe 73 and moves along the outer wall of the slag discharge pipe 61. The waste slag is cooled by heat exchange in the slag discharge pipe 61. At the same time, the cold water is heated and discharged through the first liquid discharge pipe 74 for standby use, thereby achieving rapid cooling of the waste slag and recycling the heat in the waste slag, thereby improving energy utilization and economic benefits and reducing pollution to the atmosphere. Example
[0030] Based on the first embodiment, Figure 5 As shown, a first piston cavity 52 is fixedly disposed on one side of the slag discharge cavity 62 away from the slag discharge port 112 , one end of the blocking member 56 seals the slag discharge port 112 , and the other end is sealingly slidably installed in the first piston cavity 52 .
[0031] In actual operation: the slag discharge cavity 62 is sealed by the sealing member 56. When the sealing member 56 is operated to open the slag discharge port 112, the other end of the sealing member 56 seals and slides in the first piston cavity 52 to prevent impurities or smoke in the waste slag from being discharged through the slag discharge valve device 5 and causing environmental pollution. Example
[0032] On the basis of Example 1 or Example 2, Figure 6-Figure 8 As shown, a shaft sealing device 8 is provided between the slag discharge shell and the driving mechanism 55, and the transmission shaft 54 is sealingly and slidably installed in the shaft sealing device 8, so that the smoke in the waste slag is prevented from being discharged through the gap between the slag discharge shell and the transmission shaft 54.
[0033] The shaft sealing device 8 includes a shaft sealing sleeve 81 sealingly mounted on the valve housing 53, and a plurality of heat-resistant smoke-isolating disc layers 82 are linearly and evenly mounted inside the shaft sealing sleeve 81. The plurality of heat-resistant smoke-isolating disc layers 82 are provided with bearing holes for the transmission shaft 54 to slide through in a sealed manner. The outer wall of the transmission shaft 54 is fitted with the bearing hole, and the transmission shaft 54 can slide axially in the bearing hole.
[0034] The shaft seal sleeve 81 is sealed and connected to the valve housing 53 via a connecting flange 84, and a heat-resistant seal 85 is arranged between the connecting flange 84 and the valve housing 53. A support frame 87 is fixedly arranged between two adjacent heat-resistant smoke isolation disk layers 82 in the shaft seal sleeve 81, and a gap 86 between two adjacent heat-resistant smoke isolation disk layers 82 is filled with lubricant.
[0035] In actual operation: starting the driving mechanism 55 drives the transmission shaft 54 to move along the bearing hole of the heat-resistant smoke isolation disk layer 82, and the waste heat smoke is blocked by multiple heat-resistant smoke isolation disk layers 82 to prevent the waste heat smoke from leaking out. The lubricant reduces the wear of the transmission shaft 54 and the bearing hole, prolongs the service life, and further blocks the waste heat smoke. Example
[0036] On the basis of the third embodiment, a neck is fixedly provided on the connecting flange 84, and the neck seal is slidably inserted into the groove. A heat-resistant seal 85 is provided on the neck, and the neck is inserted into the valve housing 53 and fits tightly with the inner wall of the valve housing 53. The multiple heat-resistant smoke-isolating disk layers 82 are heat-resistant and wear-resistant plastic plate disk layers or high-temperature-resistant metal plate disk layers, and the lubricant is mechanical butter, which improves the overall effect of blocking waste heat and smoke, and at the same time improves the wear resistance of the drive shaft 54 and the bearing hole, thereby extending the service life. Example
[0037] Based on any of the above embodiments, Fig. 9As shown, the driving mechanism 55 includes a second piston cavity 551 sealed and installed on the slag discharge valve device 5, a piston plate 555 is sealingly and slidably installed in the second piston cavity 551, the second piston cavity 551 is divided into a first cavity 552 and a second cavity 5510 by the piston plate 555, the transmission shaft 54 is connected and fixed to the piston plate 555, an elastic component 556 for sealing the blocking member 56 with the slag discharge port 112 is arranged between the piston plate 555 and the second piston cavity 551, a first connecting pipe 558 is sealed and installed at one end of the second cavity 5510 of the second piston cavity 551 close to the blocking member 56, the other end of the first connecting pipe 558 is sealed and connected to a pump body 557 for increasing the pressure in the second cavity 5510, starting the pump body 557 to increase the pressure in the second cavity 5510 pushes the piston plate 555 to move to the side away from the blocking member 56, and drives the blocking member 56 away from the slag discharge port 112 through the transmission shaft 54.
[0038] Specifically: the elastic component 556 is a high-temperature resistant limit spring, which is movably installed in the second cavity 5510. One end of the limit spring is connected and fixed to the piston plate 555, and the other end is connected and fixed to the second piston cavity 551. The second piston cavity 551 is sealed with the valve housing 53 through the fixing flange 554. The outer end face of the second piston cavity 551 is provided with an exhaust hole 553 connected to the first cavity 552. The pump body 557 is a high-pressure air pump or a hydraulic pump.
[0039] In actual operation: the driving mechanism 55 is sealed and connected to the valve housing 53, and the elastic component 556 is used to push the sealing member 56 to seal the slag discharge port 112 to prevent the slag discharge port 112 from automatically opening when the power is off or there is a problem with the driving mechanism 55, thereby affecting normal use. The pump body 557 is started to increase the pressure in the second cavity 5510 to push the piston plate 555 to move to the side away from the sealing member 56, and the sealing member 56 will be driven away from the slag discharge port 112 through the transmission shaft 54. The operation is simple and quick, and it has the function of preventing the leakage of waste liquid and smoke. Example
[0040] Based on Example 5, Fig.10 As shown, the second cavity 5510 is sealed and connected to the input end of the pump body 557 through the second connecting pipe 5511, and the first cavity 552 and the second cavity 5510 are sealed and connected through the third connecting pipe 5512. The third connecting pipe 5512 is provided with a first valve 5513, and the first connecting pipe 558 is provided with a pressure gauge 559. The pressure gauge 559 is electrically connected to the pump body 557. The pump body 557 is started according to the pressure gauge 559 to adjust the pressure in the second cavity 5510, and the size of the gap 86 between the sealing member 56 and the slag discharge port 112 is adjusted.
[0041] Specifically: the second piston cavity 551 is a sealed interface. In this embodiment, the exhaust hole 553 connected to the first cavity 552 is not provided. The first cavity 552 and the second cavity 5510 are filled with hydraulic oil or high-pressure gas, and the high-pressure gas is preferably nitrogen.
[0042] In actual operation: the elastic component 556 is used to push the plugging member 56 to be sealed and connected with the slag discharge port 112. At this time, the filling pressures in the first cavity 552 and the second cavity 5510 are equal. When slag discharge is required, the first valve 5513 is closed, and the pump body 557 is started to transport the filling in the first cavity 552 to the second cavity 5510, so that the pressure in the second cavity 5510 is greater than the pressure in the first cavity 552, and the pressure difference is greater than the elastic force of the elastic component 556, which will push the piston plate 555 to move away from the slag discharge port 112, and the plugging member 56 is driven by the transmission shaft 54 to move along the valve cavity 51, so that the slag discharge branch pipe 57 is connected with the slag discharge port 112 to realize slag discharge. By adjusting the pressure difference, the range of movement of the plugging member 56 can be adjusted, and the amount of slag discharge can be adjusted, so that the waste slag accumulated at the bottom of the reactor 1 can be slowly discharged without stopping the reactor 1. Example
[0043] Based on Example 6, Fig.11 As shown, the first cavity 552 and the second cavity 5510 are both sealed cavities and are filled with high-pressure gas. The pressure of the first cavity 552 is greater than that of the second cavity 5510, which will push the sealing member 56 to seal the slag discharge port 112. The pump body 557 is sealed and connected to the second cavity 5510 through the first connecting pipe 558. The first connecting pipe 558 is provided with an exhaust hole 553. The pressure gauge 559 is installed on the first connecting pipe 558. A sealing sleeve 5514 is provided at the middle bearing hole of the fixed flange 554. The outer surface of the transmission shaft 54 is tightly fitted with the sealing sleeve 5514, and the transmission shaft 54 can be axially moved along the sealing sleeve 5514.
[0044] In actual operation: when the pressure of the first cavity 552 is greater than the pressure of the second cavity 5510, the sealing member 56 will be pushed to seal the slag discharge port 112. When slag discharge is required, the pump body 557 is started to fill the second cavity 5510 with high-pressure gas. When the pressure in the second cavity 5510 is greater than that in the first cavity 552, the piston plate 555 will be pushed to move along the second piston cavity 551, thereby driving the sealing member 56 away from the slag discharge port 112. Example
[0045] Based on any of the above embodiments, the first liquid inlet pipe 73 is arranged at the lower end of the tubular water tank 71 close to the slag discharge branch pipe 57, and the first liquid discharge pipe 74 is arranged at the upper end of the tubular water tank 71 away from the slag discharge branch pipe 57. A flow valve body 76 is installed at the input end of the first liquid inlet pipe 73, and the other end of the flow valve body 76 is connected to a cold water filling pipe 75 for inputting cold water. A temperature sensor 78 for detecting the temperature inside the pipe is arranged at one end of the slag discharge pipe 61 away from the slag discharge branch pipe 57, and the temperature sensor 78 is electrically connected to the flow valve body 76 through the controller 77.
[0046] In actual operation: the temperature of the waste slag transported through the slag discharge pipe 61 is detected in real time by the temperature sensor 78, and the data is transmitted to the controller 77. The flow valve is controlled by the controller 77 to adjust the flow of the cold water liquid to achieve the temperature control function. At the same time, the cold water liquid enters the tubular water tank 71 through the first liquid inlet pipe 73. After filling the tubular water tank 71, it is discharged through the first liquid discharge pipe 74, thereby improving the function of uniformly cooling the waste slag in the slag discharge pipe 61 and improving the heat exchange effect. Example
[0047] like Fig.12 As shown, the reactor 1 comprises an outer reactor body 11 and an inner reactor body 12, a heat exchange cavity 13 is formed between the outer reactor body 11 and the inner reactor body 12, a heating device 4 is provided on the reactor 1, the heating device 4 is sealed and connected with the heat exchange cavity 13 through an air inlet pipe 14, an exhaust pipe 16 is provided on the heat exchange cavity 13, and a third valve 711 is provided on both the air inlet pipe 14 and the exhaust pipe 16, a second liquid inlet pipe 79 is sealed and connected to the first liquid inlet pipe 73, a second liquid discharge pipe 713 is provided on the upper end of one side of the heat exchange cavity 13 close to the first liquid discharge pipe 74, and a second valve 710 is provided on both the second liquid inlet pipe 79 and the second liquid discharge pipe 713; Specifically: the exhaust pipe 16 is sealed and connected to the heat exchange cavity 13 through the exhaust port 17, the air inlet pipe 14 is sealed and connected to the heat exchange cavity 13 through the air inlet 15, the slag discharge port 112 is opened on the inner kettle body 12, the valve shell 53 in the slag discharge valve device 5 passes through the outer kettle body 11, and is sealed and fixed to the outer wall of the inner kettle body 12, the slag discharge branch pipe 57 passes through the outer kettle body 11, and is sealed and connected to the valve cavity 51 in the valve shell 53, and the second liquid discharge pipe 713 and the first liquid discharge pipe 74 are both provided with a pressure limiting valve 712.
[0048] In actual operation: during the slag discharge process, the third valve 711 is closed and the second valve 710 is opened, and the cold water enters the heat exchange chamber 13 through the second liquid inlet pipe 79 to preliminarily cool the waste slag in the inner kettle body 12 of the reactor 1. The pressure-limiting valve 712 controls the pressure of the warm water discharged from the second liquid discharge pipe 713 and the first liquid discharge pipe 74 to be the same. Example
[0049] like Fig.13and Fig.14 As shown, the slag discharge driving component 64 is connected to the rotating shaft through a transmission mechanism, a discharge pipe 66 is provided at the lower end of the slag discharge pipe 61 away from the slag discharge branch pipe 57, and the first liquid infusion pipe 610 is sealed and rotatably installed at both ends of the rotating shaft. The first liquid infusion pipe 610 close to the side of the slag discharge branch pipe 57 is sealed and connected to the first liquid inlet pipe 73, and the other first liquid infusion pipe 610 is sealed and connected to the first liquid discharge pipe 74. A second liquid infusion cavity 613 is opened in the spiral slag discharge tooth 614, and the two ends of the second liquid infusion cavity 613 are connected to the first liquid infusion pipe 610 through the first liquid infusion cavity 69 respectively.
[0050] Specifically: the transmission mechanism includes a third transmission gear 67 fixedly mounted on the rotating shaft, a fourth transmission gear 68 is fixedly provided at the output end of the slag discharge driving component 64, the third transmission gear 67 is meshed with the fourth transmission gear 68, the slag discharge pipe 61 is sealed and connected with the slag discharge branch pipe 57 through the slag inlet 65, the first infusion cavity 69 is opened at both ends of the rotating shaft, the first infusion tube 610 is sealed and connected with the second infusion tube through the first connecting port 612, the first infusion tube 610 is connected with the first infusion cavity 69 on the rotating shaft through the sealed rotating connecting piece 611, and the sealed rotating connecting piece 611 is an existing well-known technology.
[0051] In actual operation: start the slag discharge driving component 64 to drive the spiral slag discharge mechanism 63 to rotate through the transmission mechanism, and the cold water enters the second infusion cavity 613 of the spiral slag discharge tooth 614 through the first infusion tube 610 on one side, and is discharged through the second infusion cavity 613 on the other side, thereby increasing the effective area of heat exchange for the waste slag, thereby improving the efficiency of waste slag cooling, shortening the cooling time, and improving the efficiency of slag discharge. Example
[0052] Based on any of the above embodiments, Figure 15-16 As shown, a second stirring shaft 36 is rotatably installed in the first stirring shaft 31, and the first stirring shaft 31 is extended from both ends of the second stirring shaft 36. An arc stirring rod 33 is fixedly installed at the lower end of the second stirring shaft 36. A scraping rod 37 for scraping materials from the inner wall of the reactor 1 is provided on the arc stirring rod 33. A second stirring rod 38 is fixedly arranged on the scraping rod 37. The second stirring rod 38 and the first stirring rod 32 are staggered with each other. A main transmission gear 311 is fixedly arranged at the output end of the stirring drive component 34, a first transmission gear 39 is fixedly arranged on the first stirring shaft 31, and a second transmission gear 310 is fixedly arranged on the second stirring shaft 36. The first transmission gear 39 and the second transmission gear 310 are both connected to the main transmission gear 311 in transmission connection, and the first transmission gear 39 and the second transmission gear 310 are driven by the main transmission gear 311 to rotate in opposite directions.
[0053] Specifically: an installation cavity 35 is opened in the first stirring shaft 31, and the second stirring shaft 36 is sealed and rotatably installed in the installation cavity 35. The bottom surface of the inner wall of the reactor 1 is provided with an arcuate inner wall 111, and a gap 86 is reserved between the arcuate inner wall 111 and the side wall. The arcuate stirring rod 33 corresponds to the arcuate inner wall 111.
[0054] In actual operation: the main transmission gear 311 drives the first transmission gear 39 and the second transmission gear 310 to rotate in opposite directions, thereby driving the first stirring rod 32 and the second stirring rod 38 to rotate in opposite directions and staggered, and at the same time scraping off the sticky materials on the reactor 1, thereby improving the full stirring of the materials in the reactor 1, preventing the materials from rotating in the same direction, thereby affecting the decomposition efficiency, and improving the slag discharge efficiency, while preventing the waste slag from sticking to the reactor 1 and being unable to be discharged cleanly. Example
[0055] Based on any of the above embodiments, Figure 1-Figure 2 As shown, a feeding device 2 is fixedly arranged on the reactor 1, and the feeding device 2 includes a feeding pipe 21 which is fixedly passed through the outer reactor body 11 and connected with the inner reactor body 12, a spiral feeding mechanism 23 is rotatably installed in the feeding pipe 21, and a feeding driving component 24 is installed on the outer wall of the feeding pipe 21 by bolts and nuts. The feeding driving component 24 is a driving motor, and the output end of the driving motor is transmission-connected with the spiral feeding mechanism 23, and a storage hopper 22 is fixedly connected to the feeding pipe 21.
[0056] In actual operation: the driving motor is started to drive the spiral feeding mechanism 23 to rotate, and the material dropped from the storage hopper 22 is transported to the inner kettle body 12 of the reactor 1 through the feeding pipe 21 .
[0057] The inner kettle body 12 of the reactor 1 is fixedly connected with an oiling pipe, on which a distillation device 19 is arranged. The oil smoke generated by the cracking reaction is discharged through the oiling pipe, and the oil in the oil smoke is separated through the distillation device 19. Example
[0058] On the basis of Example 12, an air filling pipe 110 is fixedly provided on the reactor 1, and the air filling pipe 110 is connected to the inner reactor body 12. When the slag discharge port 112 is opened by the slag discharge valve device 5, nitrogen is filled into the reactor 1 from the air filling pipe 110 to promote smooth slag discharge. Under normal conditions, the air filling pipe 110 is in a sealed state.
[0059] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A slag discharge device for an oil-chemical reactor, comprising a reactor (1) and a slag discharge device (6), wherein a slag discharge port (112) is provided at a lower end of one side of the reactor (1), a stirring device (3) is rotatably mounted on the reactor (1), the stirring device (3) comprises a first stirring shaft (31) rotatably mounted on the reactor (1), the first stirring shaft (31) extends into the reactor (1), a first stirring rod (32) is provided on the first stirring shaft (31), an arc-shaped stirring rod (33) is provided at the end of the first stirring shaft (31), a stirring driving component (34) for driving the first stirring shaft (31) to rotate is provided on the reactor (1), and the characteristics are: A slag discharge valve device (5) is sealably mounted on the reactor (1), the slag discharge valve device (5) comprising a valve housing (53) sealably mounted at a slag discharge port (112) on the reactor (1), a valve cavity (51) being arranged in the valve housing (53), a plugging member (56) being slidably mounted in the valve cavity (51), the slag discharge valve device (5) further comprising a driving mechanism (55), the driving mechanism (55) being transmission-connected to the plugging member (56) via a transmission shaft (54), and starting the driving mechanism (55) to drive the plugging member (56) to move along the plugging cavity via the transmission shaft (54), thereby closing and opening the slag discharge port (112); The slag discharge device (6) comprises a slag discharge pipe (61), the slag discharge pipe (61) is sealed and connected to the valve cavity (51) through a slag discharge branch pipe (57), a spiral slag discharge mechanism (63) is rotatably installed in the slag discharge pipe (61), a slag discharge driving component (64) is detachably installed on the outer wall of the slag discharge pipe (61), and the slag discharge driving component (64) is started to drive the spiral slag discharge mechanism (63) to discharge the waste slag dropped from the slag discharge branch pipe (57), and a tubular water tank (71) is sealed on the outer wall of the slag discharge pipe (61), the inner wall of the tubular water tank (71) and the outer wall of the slag discharge pipe (61) form a water cavity (72), and a first liquid inlet pipe (73) for inputting cold water and a first liquid discharge pipe (74) for outputting liquid water are arranged on the water cavity (72).
2. A pipeline grooving device for water control construction according to claim 1, characterized in that: A first piston cavity (52) is fixedly arranged on one side of the slag discharge cavity (62) away from the slag discharge port (112); one end of the blocking member (56) seals the slag discharge port (112), and the other end is sealingly slidably installed in the first piston cavity (52).
3. A pipeline grooving device for water control construction according to claim 1 or 2, characterized in that: A shaft sealing device (8) is provided between the slag discharge shell and the driving mechanism (55), and the transmission shaft (54) is sealingly and slidably installed in the shaft sealing device (8). The shaft sealing device (8) prevents smoke in the waste slag from being discharged through the gap between the slag discharge shell and the transmission shaft (54).
4. A pipeline grooving device for water control construction according to claim 3, characterized in that: The shaft sealing device (8) comprises a shaft sealing sleeve (81) sealingly mounted on a valve housing (53), wherein a plurality of heat-resistant smoke-isolating disc layers (82) are linearly and evenly mounted in the shaft sealing sleeve (81), and the plurality of heat-resistant smoke-isolating disc layers (82) are provided with bearing holes for the transmission shaft (54) to slide through in a sealed manner.
5. A pipeline grooving device for water control construction according to claim 4, characterized in that: The shaft seal sleeve (81) is sealedly connected to the valve housing (53) via a connecting flange (84), and a heat-resistant seal (85) is provided between the connecting flange (84) and the valve housing (53). A support frame (87) is fixedly provided between two adjacent heat-resistant smoke isolation disk layers (82) in the shaft seal sleeve (81), and a gap (86) between two adjacent heat-resistant smoke isolation disk layers (82) is filled with a lubricant.
6. A pipeline grooving device for water control construction according to any one of claims 1 to 5, characterized in that: The driving mechanism (55) comprises a second piston cavity (551) sealed and mounted on the slag discharge valve device (5); a piston plate (555) is sealingly and slidably mounted in the second piston cavity (551); the second piston cavity (551) is divided into a first cavity (552) and a second cavity (5510) by the piston plate (555); the transmission shaft (54) is fixedly connected to the piston plate (555); an elastic member for sealing the slag discharge port (112) with the sealing member (56) is provided between the piston plate (555) and the second piston cavity (551); Component (556), a first connecting tube (558) is sealedly installed at one end of the second cavity (5510) of the second piston cavity (551) close to the sealing member (56), and the other end of the first connecting tube (558) is sealedly connected to a pump body (557) for increasing the pressure in the second cavity (5510). Starting the pump body (557) to increase the pressure in the second cavity (5510) pushes the piston plate (555) to move away from the sealing member (56), and drives the sealing member (56) away from the slag discharge port (112) through the transmission shaft (54).
7. A pipeline grooving device for water control construction according to claim 6, characterized in that: The second cavity (5510) is sealed and connected to the input end of the pump body (557) via a second connecting pipe (5511); the first cavity (552) and the second cavity (5510) are sealed and connected via a third connecting pipe (5512); a first valve (5513) is provided on the third connecting pipe (5512); a pressure gauge (559) is provided on the first connecting pipe (558); the pressure gauge (559) is electrically connected to the pump body (557); the pressure in the second cavity (5510) is adjusted by starting the pump body (557) according to the pressure gauge (559); and the size of the gap (86) between the sealing member (56) and the slag discharge port (112) is adjusted.
8. A pipeline grooving device for water control construction according to claim 1, 2, 5 or 7, characterized in that: The first liquid inlet pipe (73) is arranged at the lower end of the tubular water tank (71) close to the slag discharge branch pipe (57), and the first liquid discharge pipe (74) is arranged at the upper end of the tubular water tank (71) away from the slag discharge branch pipe (57). A flow valve body (76) is installed at the input end of the first liquid inlet pipe (73), and the other end of the flow valve body (76) is connected to a cold water filling pipe (75) for inputting cold water. A temperature sensor (78) for detecting the temperature inside the pipe is arranged at one end of the slag discharge pipe (61) away from the slag discharge branch pipe (57), and the temperature sensor (78) is electrically connected to the flow valve body (76) through a controller (77).
9. A pipeline grooving device for water control construction according to claim 8, characterized in that: The reaction kettle (1) comprises an outer kettle body (11) and an inner kettle body (12), a heat exchange cavity (13) is formed between the outer kettle body (11) and the inner kettle body (12), a heating device (4) is provided on the reaction kettle (1), the heating device (4) is sealed and connected to the heat exchange cavity (13) through an air inlet pipe (14), an exhaust pipe (16) is provided on the heat exchange cavity (13), and a third valve (711) is provided on both the air inlet pipe (14) and the exhaust pipe (16), a second liquid inlet pipe (79) is sealed and connected to the first liquid inlet pipe (73), a second liquid discharge pipe (713) is provided at the upper end of one side of the heat exchange cavity (13) close to the first liquid discharge pipe (74), and a second valve (710) is provided on both the second liquid inlet pipe (79) and the second liquid discharge pipe (713); The spiral slag discharge mechanism (63) comprises a rotating shaft rotatably mounted on the slag discharge pipe (61) and a spiral slag discharge tooth (614) fixedly mounted on the rotating shaft. The slag discharge driving component (64) is connected to the rotating shaft through a transmission mechanism. A discharge pipe (66) is provided at the lower end of the slag discharge pipe (61) away from the slag discharge branch pipe (57). First liquid infusion pipes (610) are sealed and rotatably mounted at both ends of the rotating shaft. The first liquid infusion pipe (610) on the side close to the slag discharge branch pipe (57) is sealed and connected to the first liquid inlet pipe (73), and the other first liquid infusion pipe (610) is sealed and connected to the first liquid discharge pipe (74). A second liquid infusion cavity (613) is provided in the spiral slag discharge tooth (614). The two ends of the second liquid infusion cavity (613) are respectively connected to the first liquid infusion pipe (610) through the first liquid infusion cavity (69).
10. A pipeline grooving device for water control construction according to any one of claims 1 to 9, characterized in that: A second stirring shaft (36) is rotatably mounted inside the first stirring shaft (31), and both ends of the second stirring shaft (36) extend out of the first stirring shaft (31). The arc-shaped stirring rod (33) is fixedly mounted on the lower end of the second stirring shaft (36), and a scraping rod (37) for scraping materials off the inner wall of the reaction kettle (1) is arranged on the arc-shaped stirring rod (33). A second stirring rod (38) is fixedly mounted on the scraping rod (37), and the second stirring rod (38) and the first stirring rod (32) are arranged in an interlaced manner. A main transmission gear (311) is fixedly arranged at the output end of the stirring driving component (34), a first transmission gear (39) is fixedly arranged on the first stirring shaft (31), and a second transmission gear (310) is fixedly arranged on the second stirring shaft (36), and the first transmission gear (39) and the second transmission gear (310) are both connected to the main transmission gear (311) in a transmission manner, and the main transmission gear (311) drives the first transmission gear (39) and the second transmission gear (310) to rotate in opposite directions.