Reaction kettle for curing castable of dry-type transformer

Abstract

The invention relates to the technical field of transformer manufacturing equipment, and particularly discloses a dry-type transformer castable curing reaction kettle which comprises a kettle body, a top cover is fixedly buckled and installed at the top of the kettle body through bolts, a vacuum pipe is fixedly connected to the outer surface of the top cover in a penetrating mode, and an air pressure valve is arranged in the vacuum pipe. A first stirring plate and a second stirring plate are arranged to be inclined, so that an upward pushing force can be generated on a mixed castable when the castable and a curing agent are stirred and mixed, the mixed castable can be turned up and down in a stirring frame, the castable and the curing agent are mixed more sufficiently, and the stirring efficiency is improved. And the second stirring plate is provided with the shunting holes, so that the mixed castable can be shunted through the shunting holes when the second stirring plate stirs the mixed castable, part of the mixed castable is refined and mixed through the shunting holes, and the mixing effect is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer manufacturing equipment, in particular to a reaction kettle for curing dry-type transformer casting material. Background Art

[0002] In the field of transformer manufacturing, the curing process of castables is a key link, which directly affects the insulation performance and long-term stability of the transformer. Traditional transformer castable curing technology usually adopts wet process, which has problems such as high energy consumption, low efficiency and environmental pollution. With the improvement of environmental protection requirements and the increase of energy costs, the industry urgently needs a more efficient, energy-saving and environmentally friendly curing technology.

[0003] Dry-type transformer castable curing technology has emerged. It uses specific reactor equipment to achieve the curing of castables under solvent-free conditions. This technology requires the reactor to provide precise temperature control, effective stirring and mixing, and good heat exchange efficiency. However, the existing dry-type transformer castable curing reactor has some limitations in design and function, such as uneven mixing due to insufficient stirring, low heat exchange efficiency, and difficulty in handling castables adhered to the inner wall of the reactor. These problems limit the efficiency of the curing process and the performance of the transformer product. Summary of the invention

[0004] The present invention provides a reaction kettle for curing dry-type transformer castables, which solves the problems mentioned in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A reaction kettle for curing dry transformer castables, comprising a kettle body, a top cover is fixedly mounted on the top of the kettle body by bolts, a vacuum tube is fixedly connected to the outer surface of the top cover, and a pressure valve is arranged inside the vacuum tube, and further comprising:

[0006] A stirring mechanism, wherein the stirring mechanism is fixedly installed inside the kettle body and is used to stir the raw material mixture;

[0007] A heating mechanism, wherein the heating mechanism is fixedly installed inside the kettle body and is also arranged outside the stirring mechanism, and the heating mechanism is used to heat the outer surface of the stirring mechanism when the stirring mechanism is working;

[0008] The stirring mechanism comprises a stirring frame, which is fixedly mounted inside the kettle body, the bottom surface of the top outer edge of the stirring frame is fixedly sealed and connected to the top of the kettle body, the bottom cross-section of the stirring frame is arranged to be nearly W-shaped, the bottom outer surface of the stirring frame does not contact the inner surface of the kettle body, the bottom of the stirring frame is fixedly connected to a boss, the boss is arranged to be conical, the interior of the boss is arranged to be hollow, the bottom of the boss is arranged to be open, the upper surface of the boss is rotatably connected to a rotating shaft, the rotating shaft is arranged inside the stirring frame, the top of the rotating shaft passes through the top cover and is rotatably connected to a motor, and the motor is fixedly mounted on the middle upper surface of the top cover.

[0009] The bottom outer surface of the rotating shaft is fixedly sleeved with a mounting tube, and the mounting tube is arranged inside the stirring frame. The top outer surface of the mounting tube is symmetrically fixedly connected with a stirring rod, and the stirring rod is arranged to be nearly U-shaped. The contour of the stirring rod and the cross-sectional contour of the stirring frame are arranged parallel to each other. The bottom of the stirring rod is fixedly connected with a first connecting rod, and the first connecting rod is arranged horizontally. The outer surface of the first connecting rod is fixedly connected with a first stirring plate, and the first stirring plate is arranged obliquely.

[0010] Preferably, a sleeve is fixedly connected to the middle outer surface of the stirring rod, a second connecting rod is fixedly connected to the middle outer surface of the sleeve close to the mounting tube, an end of the second connecting rod away from the sleeve is fixedly connected to the middle outer surface of the mounting tube, and a second stirring plate is fixedly connected to the outer surface of the second connecting rod, the second stirring plate is obliquely arranged, the top of the second stirring plate is arranged in a curved shape, the outer surface of the second stirring plate is evenly penetrated with diversion holes, the top outer surface of the second stirring plate is penetrated with a release groove, and the release groove is arranged above the diversion hole, if the castable and the curing agent need to be mixed, the top cover can be opened, and then the castable and the curing agent are placed in the stirring frame according to the required ratio, and the top cover is replaced after the placement is completed. The kettle body is buckled, and the mixing frame is evacuated to a vacuum state through the vacuum tube, and then the motor is started. When the motor is started, the rotating shaft inside the mixing frame is driven to rotate, and then the installation tube is driven to rotate through the rotation of the rotating shaft. When the installation tube starts to rotate, the stirring rod is rotated. As the stirring rod starts to rotate, the first connecting rod and the second connecting rod installed on the stirring rod can drive the first stirring plate and the second stirring plate to rotate in the mixing frame, so as to mix and stir the castable and the curing agent. By fixing the mounting boss at the bottom of the mixing frame so that the bottom cross-section of the mixing frame is W-shaped and cooperates with the first stirring plate, the bottom of the mixing frame can be cleaned and stirred, thereby avoiding the problem that the castable and curing agent at the bottom of the existing reactor are difficult to be effectively stirred and mixed.

[0011] Preferably, the outer surface of the sleeve is fixedly connected to a first mounting bar, the outer surface of the first mounting bar away from the mounting tube is slidably fitted on the inner surface of the stirring frame, the surface of the first mounting bar close to the inner surface of the kettle body is elastically slidably connected to a scraper, there is damping between the scraper and the first mounting bar, the end of the scraper away from the sleeve is set to a cut-out shape, and the end of the scraper close to the sleeve is set to a cone.

[0012] Preferably, a pressure plate is fixedly connected to the outer surface of the sleeve, the pressure plate is arranged in a strip shape, the middle part of the pressure plate is arranged in a convex shape, the inside of the pressure plate is arranged in a hollow shape, and the outer surface of the pressure plate close to the scraper is initially arranged in contact with the end of the scraper close to the sleeve.

[0013] Preferably, the sleeve is fixedly connected with a second mounting strip on an outer surface of a side symmetrical to the first mounting strip, the second mounting strip and the first mounting strip are arranged in the same shape, the interior of the second mounting strip is arranged to be hollow, the outer surface of the second mounting strip away from the mounting tube is slidably fitted on the inner surface of the stirring frame, the outer surface of the second mounting strip is provided with a slide groove, the slide groove is arranged in a hole shape, the slide groove is communicated with the internal cavity of the second mounting strip, the internal cavity of the second mounting strip is communicated with the inner cavity of the pressure plate, a grinding plate is elastically slidably connected in the slide groove, when the stirring rod rotates, it also drives the sleeve to rotate with it, with the rotation of the sleeve, the first mounting strip begins to rotate along the inner wall of the stirring frame, so that The scraper on the first mounting bar begins to scrape the inner wall of the mixing frame to avoid the problem that the mixed castable sticks to the inner wall of the mixing frame and cannot be effectively cleaned. When the scraper contacts the more stubborn mixed castable stuck to the inner wall of the mixing frame, an extrusion force is generated, causing the scraper to begin to move toward the inside of the first mounting bar, thereby causing the inner end of the scraper to generate an extrusion force on the pressure plate, squeezing the inner cavity of the pressure plate, so that the pressure plate inputs its internal air pressure into the inner cavity of the second mounting bar and releases it to the outside through the slide groove on the second mounting bar. A grinding plate is slidably installed in the slide groove on the second mounting bar, which will push the grinding plate to move to the outside of the slide groove, thereby making the outer surface of the grinding plate fit tightly against the inner surface of the mixing frame.

[0014] Preferably, the heating mechanism includes an input pipe, which passes through and is fixedly connected to the upper outer surface of the kettle body, and an output pipe passes through and is fixedly connected to the outer surface of the kettle body on one side away from the input pipe, and the output pipe is arranged at the bottom of the kettle body, and the output pipe and the input pipe are staggered with each other, and the output pipe and the input pipe are located in the same horizontal plane.

[0015] Preferably, a sealing ring is fixedly connected to the outer surface of the stirring frame, and the outer surface of the sealing ring is fixedly connected to the inner surface of the kettle body. Six sealing rings are arranged parallel to each other at fixed intervals around the central axis of the stirring frame, and guide holes are opened through the outer surface of the sealing ring. The guide holes are symmetrically arranged on two adjacent sealing rings in an offset manner.

[0016] Preferably, a mounting piece is fitted and fixedly connected to the inner surface of the bottom of the kettle body, the mounting piece is arranged on the inner side of the output pipe, a guide pipe is fixedly connected to the middle outer surface of the mounting piece, a mounting block is fixedly connected to the inner surface of one end of the guide pipe away from the mounting piece, three mounting blocks are arranged at fixed intervals around the central axis of the guide pipe, a limiting rod is fixedly connected to the inner surface of the mounting block, an opening and closing plate is slidably connected to the end of the limiting rod away from the mounting block through a spring, an output hole is penetrated through the middle outer surface of the opening and closing plate, and pressurization grooves are evenly penetrated and opened on the outer surface of the guide pipe around the central axis of the guide pipe. When the mixed castable is stirred, hot steam is introduced into the interior of the kettle body through the input pipe at the same time, and the introduced hot steam heats the outer surface of the stirring frame inside the kettle body, and the auxiliary stirring mechanism processes the mixture of the castable and the curing agent and discharges it through the output pipe. The production energy consumption is greatly reduced by heating with hot steam, so as to achieve the purpose of energy saving. When the hot steam enters the kettle body, due to the obstruction of the sealing ring, the input hot steam will be filled between two adjacent sealing rings.

[0017] The present invention provides a reaction kettle for curing dry-type transformer castables. It has the following beneficial effects:

[0018] 1. The reactor for curing the castable material of the dry-type transformer can generate an upward driving force on the mixed castable material when the castable material and the curing agent are stirred and mixed by setting the first stirring plate and the second stirring plate in an inclined shape, so that the mixed castable material can be flipped up and down in the stirring frame, thereby achieving a better stirring effect and making the castable material and the curing agent mixed more fully. Since the second stirring plate is provided with a diverter hole, the second stirring plate can also divert the mixed castable material through the diverter hole when stirring the mixed castable, so that part of the mixed castable is refined and mixed through the diverter hole, thereby further improving the mixing effect. Moreover, by providing a release groove at the top of the diverter hole, the mixed castable material pushed to the top of the stirring frame by the second stirring plate can re-enter the stirring frame through the release groove, thereby preventing the mixed castable from overflowing the stirring frame.

[0019] 2. The reactor for curing the castable of the dry-type transformer can grind the stubborn mixed castable by friction through the extrusion force between the grinding plate and the inner surface of the stirring frame, and the pressure plate is arranged to make the scraper and the grinding plate in a relatively balanced state, so that the stubborn castable can be treated in a relatively gentle manner during the mixing and stirring of the mixed castable, which can not only greatly reduce the possibility of the castable adhering to the inner wall of the stirring frame, but also protect the stirring rod, avoiding direct rigid cleaning that causes deformation and breakage of the stirring rod and reduces the service life of the reactor.

[0020] 3. The reactor for curing the castable of the dry-type transformer has guide holes on two adjacent sealing rings, and the guide holes are staggered. Therefore, when the hot steam first enters the reactor, it will move from one side to the other side of the reactor due to the two adjacent sealing rings, and the staggered guide holes make the movement trajectory of the hot steam in the reactor body S-shaped, which greatly prolongs the movement time of the hot steam in the reactor body, thereby increasing the amount of heat exchange generated between the hot steam and the reactor body, which can not only greatly improve the utilization of the heat of the hot steam, but also quickly heat the stirring frame, making up for the disadvantage of slow heating of the hot steam. The hot steam output through the output pipe is subject to the aperture limitation of the output hole, that is, the hot steam The output of the steam is less than the input, so the hot steam will be pressurized after being input into the kettle, which can increase the temperature of the steam and thus increase its thermal enthalpy, so that heat can be more effectively transferred to the material in the reactor during the heat exchange process, thereby improving the heating efficiency. When the pressure in the kettle gradually increases, the output hot steam will generate a driving force on the opening and closing plate when it is output through the output hole for pressure relief, so that the opening and closing plate moves along the inner wall of the guide tube and the outer surface of the limit rod toward the outside of the guide tube, thereby connecting the internal cavity of the kettle with the pressurization groove, and greatly improving the output of the hot steam through the pressurization groove, that is, realizing automatic pressure relief inside the kettle, so as to keep the pressure in the kettle in a relatively balanced state and prevent the pressure in the kettle from being too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the stirring mechanism of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the stirring frame of the present invention;

[0024] Figure 4 is a schematic structural diagram of the second stirring plate of the present invention;

[0025] Figure 5 is a schematic diagram of a top view of the structure of the first mounting bar and the second mounting bar of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the sealing ring of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the flow guide tube of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the opening and closing plate of the present invention.

[0029] In the figure: 1. kettle body; 2. top cover; 3. vacuum tube; 4. stirring mechanism; 41. stirring frame; 42. boss; 43. rotating shaft; 44. motor; 45. mounting tube; 46. stirring rod; 47. first connecting rod; 48. first stirring plate; 49. sleeve; 410. second connecting rod; 411. second stirring plate; 412. diverter hole; 413. release groove; 414. first mounting strip; 415. scraper; 416. pressure plate; 417. second mounting strip; 418. slide groove; 419. grinding plate; 5. heating mechanism; 51. input pipe; 52. output pipe; 53. sealing ring; 54. guide hole; 55. mounting plate; 56. guide pipe; 57. mounting block; 58. limit rod; 59. opening and closing plate; 510. output hole; 511. boosting groove. DETAILED DESCRIPTION

[0030] 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.

[0031] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a reaction kettle for curing dry transformer castable, comprising a kettle body 1, a top cover 2 is fixedly mounted on the top of the kettle body 1 by bolts, a vacuum tube 3 is fixedly connected to the outer surface of the top cover 2, and a gas pressure valve is arranged inside the vacuum tube 3, and further comprising:

[0032] A stirring mechanism 4, the stirring mechanism 4 is fixedly installed inside the kettle body 1, and the stirring mechanism 4 is used to stir the raw material mixture;

[0033] A heating mechanism 5, which is fixedly installed inside the kettle body 1 and is also arranged outside the stirring mechanism 4. The heating mechanism 5 is used to heat the outer surface of the stirring mechanism 4 when the stirring mechanism 4 is working;

[0034] The stirring mechanism 4 includes a stirring frame 41, which is fixedly installed inside the kettle body 1, and the bottom surface of the top outer edge of the stirring frame 41 is fixedly sealed and connected to the top of the kettle body 1. The bottom cross-section of the stirring frame 41 is set to be nearly W-shaped, and the bottom outer surface of the stirring frame 41 does not contact the inner surface of the kettle body 1. The bottom of the stirring frame 41 is fixedly connected with a boss 42, which is set to be conical, the interior of the boss 42 is set to be hollow, and the bottom of the boss 42 is set to be open. The upper surface of the boss 42 is rotatably connected with a rotating shaft 43, and the rotating shaft 43 is set inside the stirring frame 41. The top of the rotating shaft 43 passes through the top cover 2 and is rotatably connected with a motor 44, and the motor 44 is fixedly installed on the middle upper surface of the top cover 2.

[0035] A mounting tube 45 is fixedly sleeved on the bottom outer surface of the rotating shaft 43, and the mounting tube 45 is arranged inside the stirring frame 41. A stirring rod 46 is symmetrically fixedly connected to the top outer surface of the mounting tube 45. The stirring rod 46 is arranged to be nearly U-shaped, and the contour of the stirring rod 46 and the cross-sectional contour of the stirring frame 41 are arranged parallel to each other. A first connecting rod 47 is fixedly connected to the bottom of the stirring rod 46, and the first connecting rod 47 is arranged horizontally. A first stirring plate 48 is fixedly connected to the outer surface of the first connecting rod 47, and the first stirring plate 48 is arranged obliquely.

[0036] A sleeve 49 is fixedly connected to the middle outer surface of the stirring rod 46, a second connecting rod 410 is fixedly connected to the middle outer surface of the sleeve 49 close to the mounting tube 45, one end of the second connecting rod 410 away from the sleeve 49 is fixedly connected to the middle outer surface of the mounting tube 45, a second stirring plate 411 is fixedly connected to the outer surface of the second connecting rod 410, the second stirring plate 411 is obliquely arranged, the top of the second stirring plate 411 is arranged in a curved shape, the outer surface of the second stirring plate 411 is evenly penetrated with diversion holes 412, the top outer surface of the second stirring plate 411 is penetrated with a release groove 413, and the release groove 413 is arranged above the diversion hole 412.

[0037] During operation, if it is necessary to mix the casting material and the curing agent, the top cover 2 can be opened, and then the casting material and the curing agent are placed in the stirring frame 41 according to the required ratio. After the placement is completed, the top cover 2 is re-fastened to the kettle body 1, and the stirring frame 41 is evacuated to a vacuum state through the vacuum tube 3, and then the motor 44 is started. When the motor 44 is started, the rotating shaft 43 inside the stirring frame 41 is driven to rotate, and then the mounting tube 45 is driven to rotate through the rotation of the rotating shaft 43. When the mounting tube 45 starts to rotate, the stirring rod 46 is rotated. As the stirring rod 46 starts to rotate, the first connecting rod 47 and the second connecting rod 410 installed on the stirring rod 46 can drive the first stirring plate 48 and the second stirring plate 411 to rotate in the stirring frame 41, so as to mix and stir the casting material and the curing agent. By fixing the mounting boss 42 at the bottom of the stirring frame 41, the bottom cross-section of the stirring frame 41 is W-shaped, and cooperates with the first stirring plate 48, the effect of cleaning and stirring the bottom of the stirring frame 41 can be achieved, avoiding the existing reaction kettle The problem that the castable and curing agent at the bottom are difficult to be effectively stirred and mixed is solved. At the same time, by setting the first stirring plate 48 and the second stirring plate 411 to an inclined shape, an upward driving force can be generated on the mixed castable when the castable and the curing agent are stirred and mixed, so that the mixed castable can be flipped up and down in the stirring frame 41, so as to achieve a better stirring effect and make the castable and the curing agent mixed more fully. Since the second stirring plate 411 is provided with a diverter hole 412, the second stirring plate 411 can also divert the mixed castable through the diverter hole 412 when stirring the mixed castable, so that part of the mixed castable is refined and mixed through the diverter hole 412, thereby further improving the mixing effect. By setting a release groove 413 at the top of the diverter hole 412, the mixed castable pushed to the top of the stirring frame 41 by the second stirring plate 411 can re-enter the stirring frame 41 through the release groove 413, thereby preventing the mixed castable from overflowing the stirring frame 41.

[0038] Second embodiment: Figures 1 to 8 As shown, the outer surface of the sleeve 49 is fixedly connected to the first mounting bar 414, the outer surface of the first mounting bar 414 away from the mounting tube 45 is slidably fitted on the inner surface of the stirring frame 41, and the surface of the first mounting bar 414 close to the inner surface of the kettle body 1 is elastically slidably connected to the scraper 415, and there is damping between the scraper 415 and the first mounting bar 414, and the end of the scraper 415 away from the sleeve 49 is set to a cut shape, and the end of the scraper 415 close to the sleeve 49 is set to a cone.

[0039] The outer surface of the sleeve 49 is also fixedly connected with a pressure plate 416, which is arranged in a strip shape, the middle part of the pressure plate 416 is arranged in a convex shape, the inside of the pressure plate 416 is arranged in a hollow shape, and the outer surface of the pressure plate 416 close to the scraper 415 is initially in contact with the end of the scraper 415 close to the sleeve 49.

[0040] A second mounting bar 417 is fixedly connected to the outer surface of the sleeve 49 on a side symmetrical to the first mounting bar 414. The second mounting bar 417 is arranged in the same shape as the first mounting bar 414. The interior of the second mounting bar 417 is arranged to be hollow. The outer surface of the second mounting bar 417 away from the mounting tube 45 is slidably fitted on the inner surface of the stirring frame 41. A slide groove 418 is provided on the outer surface of the second mounting bar 417. The slide groove 418 is arranged in a hole shape. The slide groove 418 is connected to the internal cavity of the second mounting bar 417. The internal cavity of the second mounting bar 417 is connected to the inner cavity of the pressure plate 416. A grinding plate 419 is elastically slidably connected in the slide groove 418.

[0041] During operation, when the stirring rod 46 rotates, it will also drive the sleeve 49 to rotate with it. As the sleeve 49 rotates, the first mounting bar 414 begins to rotate along the inner wall of the stirring frame 41, so that the scraper 415 on the first mounting bar 414 begins to scrape the inner wall of the stirring frame 41, avoiding the problem that the mixed castable material adheres to the inner wall of the stirring frame 41 and cannot be effectively cleaned. When the scraper 415 contacts the more stubborn mixed castable adhered to the inner wall of the stirring frame 41, an extrusion force is generated, so that the scraper 415 begins to move toward the inside of the first mounting bar 414, and the inner end of the scraper 415 generates an extrusion force on the pressure plate 416, which squeezes the inner cavity of the pressure plate 416, so that the pressure plate 416 inputs its internal air pressure into the inner cavity of the second mounting bar 417, and passes through the second mounting bar 417. The slide groove 418 on the second mounting strip 417 is released outward, and a grinding plate 419 is slidably installed in the slide groove 418 on the second mounting strip 417, which will push the grinding plate 419 to move to the outside of the slide groove 418, so that the outer surface of the grinding plate 419 is closely fitted to the inner surface of the stirring frame 41, and the stubborn mixed castable is frictionally ground by the extrusion force between the grinding plate 419 and the inner surface of the stirring frame 41, and the scraper 415 and the grinding plate 419 are in a relatively balanced state by setting the pressure plate 416, so that in the process of mixing and stirring the mixed castable, the stubborn castable is handled in a relatively mild manner, which can not only greatly reduce the possibility of the castable adhering to the inner wall of the stirring frame 41, but also protect the stirring rod 46, and avoid direct rigid cleaning, which may cause the stirring rod 46 to deform and break, thereby reducing the service life of the reactor.

[0042] The third embodiment: Figures 1 to 8 As shown, the heating mechanism 5 includes an input pipe 51, which passes through and is fixedly connected to the upper outer surface of the kettle body 1. An output pipe 52 passes through and is fixedly connected to the outer surface of the kettle body 1 on one side away from the input pipe 51. The output pipe 52 is arranged at the bottom of the kettle body 1. The output pipe 52 and the input are staggered with each other, and the output pipe 52 and the input pipe 51 are located in the same horizontal plane.

[0043] A sealing ring 53 is fixedly connected to the outer surface of the stirring frame 41, and the outer surface of the sealing ring 53 is fixedly connected to the inner surface of the kettle body 1. Six sealing rings 53 are arranged parallel to each other at fixed intervals around the central axis of the stirring frame 41, and a guide hole 54 is opened through the outer surface of the sealing ring 53. The guide holes 54 are staggered and symmetrically arranged on two adjacent sealing rings 53.

[0044] A mounting plate 55 is fixedly connected to the inner surface of the bottom of the kettle body 1, and the mounting plate 55 is arranged on the inner side of the output pipe 52. A guide pipe 56 is fixedly connected to the middle outer surface of the mounting plate 55, and a mounting block 57 is fixedly connected to the inner surface of one end of the guide pipe 56 away from the mounting plate 55. Three mounting blocks 57 are arranged at fixed intervals around the central axis of the guide pipe 56, and a limiting rod 58 is fixedly connected to the inner surface of the mounting block 57. An opening and closing plate 59 is slidably connected to the end of the limiting rod 58 away from the mounting block 57 through a spring, and an output hole 510 is penetrated through the middle outer surface of the opening and closing plate 59, and a boosting groove 511 is evenly opened on the outer surface of the guide pipe 56 around the central axis of the guide pipe 56.

[0045] During operation, while the mixed castable is being stirred, hot steam is introduced into the kettle body 1 through the input pipe 51. The introduced hot steam heats the outer surface of the stirring frame 41 inside the kettle body 1, and the auxiliary stirring mechanism 4 processes the mixture of the castable and the curing agent, and discharges it through the output pipe 52. The production energy consumption is greatly reduced by the hot steam heating method, thereby achieving the purpose of energy saving. When the hot steam enters the kettle body 1, due to the obstruction of the sealing ring 53, the input hot steam will be filled between the two adjacent sealing rings 53. By opening guide holes 54 on the two adjacent sealing rings 53 and displacing the guide holes 54, the hot steam will move from one side to the other side of the kettle body 1 due to the two adjacent sealing rings 53 when it first enters the kettle body 1. The displaced guide holes 54 make the movement trajectory of the hot steam in the kettle body 1 S-shaped, which greatly prolongs the movement time of the hot steam in the kettle body 1, thereby increasing the amount of heat exchange between the hot steam and the kettle body 1, which can not only greatly The utilization of the heat of the hot steam is improved, and the stirring frame 41 can be quickly heated at the same time, which makes up for the disadvantage of slow heating of the hot steam. The hot steam output through the output pipe 52 is subject to the aperture limitation of the output hole 510, that is, the output amount of the hot steam is less than the input amount. Therefore, the hot steam will be pressurized after being input into the kettle body 1, which can increase the temperature of the steam, thereby increasing its thermal enthalpy, so that heat can be more effectively transferred to the material in the reactor during the heat exchange process, thereby improving the heating efficiency. When the pressure in the kettle body 1 gradually increases, the pressure in the kettle body 1 gradually increases. The output hot steam will generate a driving force on the opening and closing plate 59 when it is output and depressurized through the output hole 510, so that the opening and closing plate 59 moves along the inner wall of the guide tube 56 and the outer surface of the limit rod 58 toward the outside of the guide tube 56, thereby connecting the internal cavity of the kettle body 1 with the boosting groove 511, and greatly improving the output of the hot steam through the boosting groove 511, that is, realizing automatic depressurization inside the kettle body 1, so as to keep the pressure inside the kettle body 1 in a relatively balanced state, and prevent the pressure inside the kettle body 1 from being too high.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

Claims

1. A reaction kettle for curing dry-type transformer castable, comprising a kettle body (1), characterized in that: The top of the kettle body (1) is fixedly fastened with a top cover (2) by means of bolts, a vacuum tube (3) is fixedly connected to the outer surface of the top cover (2), and an air pressure valve is arranged inside the vacuum tube (3), and further comprises: A stirring mechanism (4), wherein the stirring mechanism (4) is fixedly mounted inside the kettle body (1), and the stirring mechanism (4) is used to stir the raw material mixture; A heating mechanism (5), the heating mechanism (5) being fixedly mounted inside the kettle body (1), and the heating mechanism (5) being arranged on the outside of the stirring mechanism (4), and the heating mechanism (5) being used to heat the outer surface of the stirring mechanism (4) when the stirring mechanism (4) is working; The stirring mechanism (4) comprises a stirring frame (41), the stirring frame (41) being fixedly mounted inside the kettle body (1), the bottom surface of the top outer edge of the stirring frame (41) being fixedly sealed and connected to the top of the kettle body (1), the bottom cross-section of the stirring frame (41) being arranged to be nearly W-shaped, the bottom outer surface of the stirring frame (41) not being in contact with the inner surface of the kettle body (1), the bottom of the stirring frame (41) being fixedly connected to a convex seat (42), the convex seat (42) being arranged to be conical, the interior of the convex seat (42) being arranged to be hollow, the bottom of the convex seat (42) being arranged to be open, the upper surface of the convex seat (42) being rotatably connected to a rotating shaft (43), the rotating shaft (43) being arranged inside the stirring frame (41), the top of the rotating shaft (43) penetrating the top cover (2) and being rotatably connected to a motor (44), the motor (44) being fixedly mounted on the middle upper surface of the top cover (2).

2. A reaction kettle for curing dry-type transformer castable according to claim 1, characterized in that: A mounting tube (45) is fixedly sleeved on the bottom outer surface of the rotating shaft (43), and the mounting tube (45) is arranged inside the stirring frame (41). A stirring rod (46) is symmetrically fixedly connected to the top outer surface of the mounting tube (45), and the stirring rod (46) is arranged in a nearly U-shape, and the profile of the stirring rod (46) and the cross-sectional profile of the stirring frame (41) are arranged parallel to each other. A first connecting rod (47) is fixedly connected to the bottom of the stirring rod (46), and the first connecting rod (47) is arranged horizontally. A first stirring plate (48) is fixedly connected to the outer surface of the first connecting rod (47), and the first stirring plate (48) is arranged obliquely.

3. A reaction kettle for curing dry-type transformer castable according to claim 2, characterized in that: A sleeve (49) is fixedly connected to the middle outer surface of the stirring rod (46); a second connecting rod (410) is fixedly connected to the middle outer surface of the sleeve (49) on the side close to the mounting tube (45); an end of the second connecting rod (410) away from the sleeve (49) is fixedly connected to the middle outer surface of the mounting tube (45); a second stirring plate (411) is fixedly connected to the outer surface of the second connecting rod (410); the second stirring plate (411) is arranged obliquely; the top of the second stirring plate (411) is arranged in a curved shape; the outer surface of the second stirring plate (411) is evenly penetrated with diversion holes (412); the top outer surface of the second stirring plate (411) is penetrated with a release groove (413); the release groove (413) is arranged above the diversion hole (412).

4. A reaction kettle for curing dry-type transformer castable according to claim 3, characterized in that: The outer surface of the sleeve (49) is fixedly connected to a first mounting bar (414); the outer surface of the first mounting bar (414) on a side away from the mounting tube (45) is slidably fitted on the inner surface of the stirring frame (41); the surface of the first mounting bar (414) on a side close to the inner surface of the kettle body (1) is elastically slidably connected to a scraper (415); damping exists between the scraper (415) and the first mounting bar (414); the end of the scraper (415) away from the sleeve (49) is arranged in a cutout shape, and the end of the scraper (415) close to the sleeve (49) is arranged in a cone shape.

5. A reaction kettle for curing dry-type transformer castable according to claim 4, characterized in that: The outer surface of the sleeve (49) is also fixedly connected with a pressure sheet (416), the pressure sheet (416) is arranged in a strip shape, the middle part of the pressure sheet (416) is arranged in a convex shape, the inside of the pressure sheet (416) is arranged in a hollow shape, and the side of the outer surface of the pressure sheet (416) close to the scraper (415) is initially arranged in contact with an end of the scraper (415) close to the sleeve (49).

6. A reaction kettle for curing dry-type transformer castable according to claim 5, characterized in that: A second mounting bar (417) is fixedly connected to the outer surface of the sleeve (49) on a side symmetrical to the first mounting bar (414); the second mounting bar (417) and the first mounting bar (414) are arranged in the same shape; the interior of the second mounting bar (417) is arranged to be hollow; the outer surface of the second mounting bar (417) on a side away from the mounting tube (45) is slidably fitted on the inner surface of the stirring frame (41); a slide groove (418) is provided on the outer surface of the second mounting bar (417); the slide groove (418) is arranged to be in the shape of a hole; the slide groove (418) is communicated with the inner cavity of the second mounting bar (417); the inner cavity of the second mounting bar (417) is communicated with the inner cavity of the pressure plate (416); a grinding plate (419) is elastically slidably connected in the slide groove (418).

7. A reaction kettle for curing dry-type transformer castable according to claim 6, characterized in that: The heating mechanism (5) comprises an input pipe (51), the input pipe (51) passing through and being fixedly connected to the upper outer surface of the kettle body (1), an output pipe (52) passing through and being fixedly connected to the outer surface of a side of the kettle body (1) away from the input pipe (51), the output pipe (52) being arranged at the bottom of the kettle body (1), the output pipe (52) being arranged in a mutually staggered manner with the input pipe, and the output pipe (52) and the input pipe (51) being located on the same horizontal plane.

8. A reaction kettle for curing dry-type transformer castable according to claim 7, characterized in that: A sealing ring (53) is fixedly connected to the outer surface of the stirring frame (41), and the outer surface of the sealing ring (53) is fixedly connected to the inner surface of the kettle body (1). Six sealing rings (53) are arranged in parallel with each other at fixed intervals around the central axis of the stirring frame (41). A flow guide hole (54) is formed through the outer surface of the sealing ring (53). The flow guide holes (54) are symmetrically arranged on two adjacent sealing rings (53) in a staggered manner.

9. A reaction kettle for curing dry-type transformer castable according to claim 8, characterized in that: A mounting plate (55) is fixedly connected to the inner surface of the bottom of the kettle body (1), the mounting plate (55) being arranged on the inner side of the output pipe (52), a flow guide pipe (56) is fixedly connected to the middle outer surface of the mounting plate (55), a mounting block (57) is fixedly connected to the inner surface of one end of the flow guide pipe (56) away from the mounting plate (55), three mounting blocks (57) are arranged at fixed intervals around the central axis of the flow guide pipe (56), a limiting rod (58) is fixedly connected to the inner surface of the mounting block (57), an opening and closing plate (59) is slidably connected to the end of the limiting rod (58) away from the mounting block (57) via a spring, an output hole (510) is penetrated through the middle outer surface of the opening and closing plate (59), and pressurizing grooves (511) are uniformly formed on the outer surface of the flow guide pipe (56) around the central axis of the flow guide pipe (56).

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