Sealing type reaction kettle capable of automatically opening and closing cover

Abstract

The utility model discloses a sealed reaction kettle capable of automatically opening and closing a cover. The sealed reaction kettle capable of automatically opening and closing the cover comprises a kettle cover, a kettle body and a cover opening and closing device, the kettle cover is arranged on the kettle body in an openable mode, the cover opening and closing device comprises a connecting rod structure and a driving mechanism, the connecting rod structure comprises a static connecting rod and a movable connecting rod, the movable connecting rod is rotationally connected with the static connecting rod, the static connecting rod is fixedly matched with the kettle body, and the movable connecting rod is connected with the kettle cover. The driving mechanism is in transmission connection with the movable connecting rod, the driving mechanism is used for driving the movable connecting rod to rotate, the kettle cover can rotate along with the movable connecting rod to realize cover opening and closing actions, the kettle cover and the movable connecting rod further have rotating freedom degrees, and the movable connecting rod and the kettle cover can relatively rotate within a limited angle range. The movable connecting rod is connected with the kettle cover through the rotating shaft, so that the kettle cover has a rotating freedom degree, the kettle cover and the kettle body can be automatically adjusted to be parallel to the flange surface of the kettle body in the process from beginning to contact to complete closing, and a gap between the kettle cover and the kettle body is as small as possible after the kettle cover is closed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealed reaction kettle with automatic opening and closing cover especially, belongs to the technical field of reaction kettle. BACKGROUND

[0002] As a chemical reaction container, most of the medium and large reaction kettles are integrated structure of kettle cover and kettle body. Some of them must adopt open structure due to feeding requirements, and generally have low automation degree, need manual assistance for opening and closing cover, and have great labor loss and safety hazards. Some existing automatic opening and closing cover devices have poor sealing performance and have the risk of reaction gas leakage. When the reaction kettle is used for reactions such as metal oxidation (in this patent, the typical reactions are the reaction of silver powder, copper powder, etc. with nitric acid), a large amount of nitrogen oxide gas is generated, which is harmful to human body if inhaled, so the reaction kettle cover and kettle body must be absolutely sealed, and the existing automatic opening and closing cover device structure cannot meet the requirements.

[0003] For the above application scenarios, the existing reaction kettle structure has the following problems: ① It is difficult to add large-volume raw materials in the closed structure reaction kettle; ② Most of the open structure reaction kettles are in manual cover opening form, which has great labor loss and safety hazards; ③ A small amount of existing automatic cover opening open structure reaction kettle structure has poor sealing performance between the kettle body and the kettle cover, and has the risk of gas leakage. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a sealed reaction kettle with automatic opening and closing cover, which can realize automatic opening and closing of the reaction kettle, ensure sealing of the reaction kettle without gas leakage after the cover is closed, ensure safety of surrounding personnel during the whole reaction process, and can be applied to occasions where various open structure reaction kettles need automatic opening and closing cover, thereby overcoming the deficiencies in the prior art.

[0005] To achieve the above-mentioned utility model purposes, the utility model adopts the technical scheme including:

[0006] The utility model embodiment provides a sealed reaction kettle with automatic opening and closing cover, which comprises a kettle cover, a kettle body and an opening and closing cover device, the kettle cover is arranged on the kettle body in an openable manner, the opening and closing cover device comprises a connecting rod structure and a driving mechanism, the connecting rod structure comprises a static connecting rod and a dynamic connecting rod, the dynamic connecting rod is rotationally connected with the static connecting rod, the static connecting rod is fixedly matched with the kettle body, the dynamic connecting rod is connected with the kettle cover, the driving mechanism is transmissionally connected with the dynamic connecting rod, the driving mechanism is used for driving the dynamic connecting rod to rotate, the kettle cover can realize opening and closing actions by rotating with the dynamic connecting rod, and the kettle cover and the dynamic connecting rod also have a rotational freedom degree, and the dynamic connecting rod and the kettle cover can relatively rotate within a limited angle range.

[0007] Compared with the prior art, the utility model has the advantages of:

[0008] The sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model adopts the automatic opening and closing cover mode, avoids the human resource loss and the safety hazard, and is simple and reliable in execution process, and the cover and the kettle body flange surface are perpendicular after the cover is opened, no extra space is occupied, and the addition of external large raw materials is also facilitated.

[0009] The sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model can achieve the complete sealing of the cover and the kettle body after the cover is closed without harsh overall machining of the kettle body, and the personnel around the reaction kettle are prevented from being damaged by harmful gas.

[0010] The sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model is connected with the cover as a rotating shaft, the cover itself has the rotating freedom, the rotating angle range of the cover is controlled within 2-3° by arranging the limiting block at the end and the middle of the movable connecting rod, so that the cover and the kettle body can fully rotate 2-3° in the process from the beginning of contact to the complete closing, the cover can be self-adjusted to be parallel to the kettle body flange surface, the gap between the cover and the kettle body is as small as possible after the cover is closed, and the sealing ring can completely fill the gap. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0012] Figure 1 is the overall structure schematic view of the sealing type reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model;

[0013] Figure 2 is the side view of the cover in the sealing type reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model;

[0014] Figure 3 is the top view of the cover in the sealing type reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model;

[0015] Figure 4 is the local structure schematic view of the cover flange in the sealing type reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model;

[0016] Figure 5It is a structure schematic view of the dovetail type sealing ring in the sealed reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model.

[0017] Figure 6 It is a structure schematic view of the connecting rod structure in the sealed reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model.

[0018] Figure 7 It is a top view of the connecting rod structure in the sealed reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model.

[0019] Figure 8 It is a structure schematic view of the driving mechanism in the sealed reaction kettle with automatic opening and closing cover provided in a typical embodiment case of the utility model. DETAILED DESCRIPTION

[0020] In view of the deficiencies in the prior art, the present inventors have long studied and practiced to come up with the technical solution of the utility model.

[0021] The utility model embodiment provides a kind of sealed reaction kettle with automatic opening and closing cover, it includes: kettle cover, kettle body and opening and closing cover device, the kettle cover is openably arranged on the kettle body, the opening and closing cover device includes connecting rod structure and driving mechanism, the connecting rod structure includes static connecting rod and dynamic connecting rod, the dynamic connecting rod is rotatably connected with the static connecting rod, the static connecting rod is fixedly matched with the kettle body, the dynamic connecting rod is connected with the kettle cover, the driving mechanism is drivingly connected with the dynamic connecting rod, the driving mechanism is used to drive the dynamic connecting rod to rotate, the kettle cover can realize opening and closing action with the dynamic connecting rod rotation, and, the kettle cover and the dynamic connecting rod also have the freedom of rotation, the dynamic connecting rod and the kettle cover can be relatively rotated within the limited angle range.

[0022] Further, the dynamic connecting rod has first end, middle part and second end sequentially arranged along the length direction of itself, the first end is rotatably connected with the static connecting rod, the second end is rotatably connected with the kettle cover, and the middle part is also provided with first limit block, the first limit block is located on the side of the dynamic connecting rod facing the kettle cover, the second end is also provided with second limit block, the second limit block is located on the other side of the dynamic connecting rod away from the kettle cover, the first limit block and the second limit block are located on the rotation track of the kettle cover relative to the dynamic connecting rod, the first limit block and the second limit block form the restriction structure for limiting the rotation angle range of the kettle cover and the dynamic connecting rod.

[0023] Further, the dynamic connecting rod is rotatably connected with the first rotating shaft, and the dynamic connecting rod is rotatably connected with the kettle cover through a second rotating shaft.

[0024] Further, the second rotating shaft is parallel to the first rotating shaft.

[0025] Further, the connecting rod structure further comprises at least one bearing, one of the inner ring and the outer ring of the bearing is fixedly connected with the dynamic connecting rod or the static connecting rod, and the other is fixedly connected with the first rotating shaft.

[0026] Further, the dynamic connecting rod and / or the static connecting rod is further provided with a reinforcing rib plate, the reinforcing rib plate is fixedly arranged on the surface of the dynamic connecting rod or the static connecting rod, and / or the reinforcing rib plate is embedded in the dynamic connecting rod or the static connecting rod.

[0027] Further, the static connecting rod is detachably connected with the kettle body.

[0028] Further, the kettle body is fixedly provided with a connecting rod mounting seat, and the bottom of the static connecting rod is fixedly arranged on the connecting rod mounting seat.

[0029] Further, the bottom of the static connecting rod is fixedly provided with a connecting rod fixing plate, the connecting rod fixing plate is fixedly connected with the connecting rod mounting seat through a threaded connecting piece, and the connecting rod fixing plate is provided with a waist-shaped hole matched with the threaded connecting piece.

[0030] Further, a gasket plate is further arranged between the static connecting rod and the connecting rod mounting seat.

[0031] Further, the side of the kettle body facing the static connecting rod is further provided with a reinforcing flange, and the static connecting rod is further fixedly connected with the reinforcing flange through a threaded connecting piece.

[0032] In a more specific embodiment, the driving mechanism comprises a servo motor, a gear transmission set, a ball screw, a push rod cylinder and a piston rod, one end of the piston rod is connected with the dynamic connecting rod, the other end of the piston rod is connected with the ball screw, the ball screw is drivingly connected with the servo motor through the gear transmission set, and the piston rod can move along its own axis under the driving of the servo motor, so as to pull the dynamic connecting rod to rotate.

[0033] Further, the piston rod is rotatably connected with the dynamic connecting rod.

[0034] Further, the piston rod is rotatably connected with the dynamic connecting rod through a third rotating shaft.

[0035] Further, one end of the piston rod is fixedly provided with a fish eye joint, and the fish eye joint is rotationally connected with the moving connecting rod through the third rotating shaft.

[0036] Further, the kettle cover is fixedly provided with a kettle cover lug seat, and the moving connecting rod is connected with the kettle cover lug seat.

[0037] Further, the kettle cover is further provided with a rotary nozzle and an observation sight glass.

[0038] Further, the kettle cover comprises a butterfly head and a kettle cover flange, the kettle cover flange is fixedly combined with the butterfly head, the kettle body is fixedly provided with a kettle body flange, the kettle cover flange is fixedly connected with the kettle body flange through a rotating handle, and the sealing type reaction kettle with the automatic opening and closing cover further comprises a sealing structure, which is arranged between the kettle cover flange and the kettle body flange and is in sealing cooperation with the kettle cover flange and the kettle body flange respectively.

[0039] Further, the kettle cover flange and the kettle body flange are connected through x rotating handles, the x rotating handles are equidistantly arranged along the circumference of the kettle cover flange or the kettle body flange, and x≥2.

[0040] Further, the kettle cover flange is provided with x compression support structures around, each rotating handle corresponds to one compression support structure, and the rotating handle is partially penetrated through the compression support structure.

[0041] Further, the sealing structure comprises y concentrically arranged sealing rings, the sealing ring is an elastic structure, and y≥2.

[0042] Further, the kettle cover flange face of the kettle cover flange and / or the kettle body flange face of the kettle body flange has y sealing grooves, and each sealing ring is partially arranged in the sealing groove.

[0043] Further, the sealing ring and the sealing groove are both dovetail type structures, the width of the part of the sealing ring located outside the sealing groove is smaller than the width of the part of the sealing ring located inside the sealing groove.

[0044] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions, implementation processes and principles will be further explained in combination with the drawings and specific implementation cases. Obviously, the described implementation manners are only part of the implementation manners of the present application, not all the implementation manners. Unless specifically stated, the kettle body, liquid receiving disc, sealing ring, static connecting rod, moving connecting rod, rotating shaft, flange, cylinder body, piston rod, fish eye joint, servo motor, ball screw, gear transmission group and the like involved in the present application are known in the art, which can be obtained by market purchase. Therefore, the specific product models and structures thereof are not limited.

[0045] In a more typical embodiment, please refer to Figure 1 , a sealed reactor with automatic opening and closing cover, comprising a cover 120, a kettle body 110 and an opening and closing cover device, the cover 120 is openably arranged on the kettle body 110, the opening and closing cover device comprises a connecting rod structure and a driving mechanism 210, the connecting rod structure comprises a static connecting rod 23 and a dynamic connecting rod 21, the dynamic connecting rod 21 is rotatably connected with the static connecting rod 23, the static connecting rod 23 is fixedly matched with the kettle body 110, the dynamic connecting rod 21 is connected with the cover 120, the driving mechanism 210 is drivingly connected with the dynamic connecting rod 21, the driving mechanism 210 is used for driving the dynamic connecting rod 21 to rotate, the cover 120 can realize the opening and closing action by rotating with the dynamic connecting rod 21, and the cover 120 and the dynamic connecting rod 21 also have a rotational freedom, the dynamic connecting rod 21 and the cover 120 can relatively rotate within a limited angle range.

[0046] Specifically, the cover 120 has a cover flange 14, and the kettle body 110 has a kettle body flange, when the cover 120 is covered on the kettle body 110, the cover flange 14 is fixedly connected with the kettle body flange through a swivel handle, so as to realize the fixation of the cover 120 and the kettle body 110. It should be noted that the cover flange 14 has a cover flange surface, and the kettle body flange has a kettle body flange surface, when the cover 120 is covered on the kettle body 110, it is necessary to ensure that the cover flange surface is parallel to the kettle body flange surface, that is, the cover flange 14 is kept parallel to the kettle body flange, so that the cover flange surface and the kettle body flange surface can be better contacted and fitted, so as to ensure that they can keep good sealing effect while being fixed.

[0047] Specifically, in order to ensure the sealing effect between the cover 120 and the kettle body 110, the cover flange 14 and / or the kettle body flange is / are also provided with a sealing structure 140, when the cover 120 is covered on the kettle body 110, the sealing structure 140 is sealingly matched with the cover flange 14 and the kettle body flange (specifically, the cover flange surface and the kettle body flange surface), when the cover 120 is closed, the sealing structure 140 is completely fitted with the kettle body flange surface, so as to ensure the sealing between the cover 120 and the kettle body 110. In particular, since the kettle body 110 has a large volume, it is difficult to be machined as a whole, such as being machined and then welded, and high parallelism between the kettle body flange and the cover flange 14 cannot be realized due to welding deformation. The cover 120 in the utility model can have a certain range of rotational freedom relative to the dynamic connecting rod 21, which can be used for adjusting the parallelism between the cover flange surface of the cover 120 and the kettle body flange surface, so as to ensure that the maximum gap between the cover flange 14 and the kettle body flange is within the effective sealing range of the sealing structure, so that complete sealing between the two is more easily realized. Exemplarily, the rotatable range between the cover 120 and the dynamic connecting rod 21 is controlled to be between 2-3°, which is determined according to the parallelism of the kettle body flange surface and the horizontal plane.

[0048] Specifically, please refer toFigure 1 、 Figure 2 and Figure 3 , the kettle cover 120 includes a butterfly head 13, a kettle cover flange 14, a kettle cover lug 11, a rotary nozzle 12, a liquid receiving disc 15, four compression support structures 16, and an observation sight glass 17. The kettle cover flange 14 is fixedly arranged at the open end of the butterfly head 13. The kettle cover lug 11, the liquid receiving disc 15, and the observation sight glass 17 are arranged on the butterfly head 13. The kettle cover lug 11 is fixedly arranged on the outer side of the butterfly head 13. The liquid receiving disc 15 is arranged on the inner side of the butterfly head 13. The rotary nozzle 12 is movably connected with the butterfly head 13, and the rotary nozzle 12 can rotate. The four compression support structures 16 are fixedly arranged on the kettle cover flange 14 at equal intervals along the circumference of the kettle cover 120. A handle is movably arranged on the compression support structure 16. Part of the handle penetrates the compression support structure 16 and can be fixedly connected with the kettle body flange. The moving connecting rod 21 is rotatably connected with the kettle cover lug 11. Specifically, the rotary nozzle 12 is used for spraying cleaning liquid. Before opening the kettle cover 120 after each reaction, the rotary nozzle 12 can be used to clean the kettle cover 120. The liquid receiving disc 15 of the kettle cover 120 is used for receiving liquid when the kettle cover 120 is opened and guiding the liquid to flow back into the kettle body 110. It should be noted that the configuration structure between the rotary nozzle 12, the liquid receiving disc 15, the observation sight glass 17, and the main body of the kettle cover 120 (i.e., the butterfly head 13 and the kettle cover flange 14) is known in the art, and is not limited here. More specifically, the butterfly head 13 further comprises a water inlet 131 and an exhaust port 132.

[0049] Specifically, the sealing structure 140 comprises two (i.e., y=2, it should be noted that y can also take other values) concentrically arranged sealing rings. The two sealing rings are arranged at intervals along the radial direction of the sealing rings. The sealing rings are elastic structures. When the kettle cover 120 is closed on the kettle body 110, the sealing rings are in contact with the kettle cover flange 14 and the kettle body flange and are deformed in a recoverable and self-adaptive manner. Four sets of handles are used to lock and increase the compression points of the sealing rings to ensure that the sealing rings are tightly attached to the kettle cover flange 14 and the kettle body flange, thereby achieving sealing between the kettle cover 120 and the kettle body 110. The multiple spaced sealing rings can improve the sealing effect between the kettle cover 120 and the kettle body 110. More specifically, please refer to Figure 4 and Figure 5The kettle cover flange face of the kettle cover flange 14 and / or the kettle body flange face of the kettle body flange has two concentric sealing grooves 141, and each sealing ring is partially arranged in the sealing groove 141 and partially exposed outside the sealing groove 141. In order to improve the sealing effect of the sealing ring 141 with the kettle cover flange 14 and the kettle body flange, and at the same time improve the structural stability of the sealing ring assembly, the sealing ring and the sealing groove 141 are both dovetail structures, and the width of the part of the sealing ring outside the sealing groove 141 is smaller than the width of the part inside the sealing groove 141. Specifically, the sealing ring is preferably a special rubber ring that can withstand high temperature acid.

[0050] Specifically, please refer to Figure 1 , Figure 6 and Figure 7 The dynamic connecting rod 21 and the static connecting rod 23 are rotatably connected through the first rotating shaft 22, the dynamic connecting rod 21 can rotate around the first rotating shaft 22, the dynamic connecting rod 21 is rotatably connected with the kettle cover 120 through the second rotating shaft 26, and the kettle cover 120 can rotate around the second rotating shaft 26. Specifically, the dynamic connecting rod 21 is rotatably connected with the kettle cover 120 ear seat 11 of the kettle cover 120 through the second rotating shaft 26. As a preferred embodiment, the second rotating shaft 26 is parallel to the first rotating shaft 22. More specifically, the connecting rod structure further comprises at least one bearing, one of the inner ring and the outer ring of the bearing is fixedly connected with the dynamic connecting rod 21 or the static connecting rod 23, and the other is fixedly connected with the first rotating shaft 22. The bearing can improve the smoothness of the rotation of the dynamic connecting rod 21. Similarly, a bearing can also be provided between the second rotating shaft 26 and the kettle cover 120 to improve the smoothness of the rotation of the kettle cover 120. The bearing at the joint is preferably a self-lubricating bearing to make the rotation smooth. The first rotating shaft 22 and the second rotating shaft 26 can be made of high yield strength material through heat treatment process.

[0051] Specifically, the static connecting rod 23 is detachably connected with the kettle body 110. More specifically, the side of the kettle body 110 facing the static connecting rod 23 is also provided with a reinforcing flange, and the static connecting rod 23 is further fixedly connected with the reinforcing flange through a threaded connecting piece. By providing the reinforcing flange, the structural strength of the connection between the static connecting rod 23 and the kettle body 110 can be improved, and the static connecting rod 23 can be prevented from shaking during the opening and closing of the cover. Exemplarily, the threaded connecting piece can be a bolt or the like.

[0052] More specifically, the static connecting rod 23 is connected and fixed on the kettle body 110 through a threaded connecting piece such as a bolt, and its position is adjustable to ensure the relative position with the kettle body 110. Specifically, the dynamic connecting rod 21 and / or the static connecting rod 23 are further provided with reinforcing rib plates, which are fixedly arranged on the surface of the dynamic connecting rod 21 or the static connecting rod 23, and / or embedded in the inside of the dynamic connecting rod 21 or the static connecting rod 23. The reinforcing rib plates are mainly used to improve the structural strength of the dynamic connecting rod 21 and the static connecting rod 23 to ensure sufficient strength without deformation.

[0053] More specifically, the kettle body 110 is fixed with a connecting rod mounting seat, the bottom of the static connecting rod 23 is fixedly provided with a connecting rod fixing plate, the bottom of the static connecting rod 23 is fixedly arranged on the connecting rod mounting seat, and the connecting rod fixing plate and the connecting rod mounting seat are fixedly connected through bolts and other threaded connecting pieces. More specifically, the connecting rod fixing plate is provided with a waist-shaped hole matched with the bolt, and by screwing the bolt, the relative position of the static connecting rod 23 and the kettle body 110 can be adjusted along the length direction of the waist-shaped hole.

[0054] Specifically, a gasket plate is further arranged between the connecting rod fixing plate and the connecting rod mounting seat, and by replacing gasket plates of different structures and sizes, the height and slope of the static connecting rod 23 can be adjusted.

[0055] More specifically, please refer to Figure 1 and Figure 6 , the dynamic connecting rod 21 has a first end portion, an intermediate portion and a second end portion arranged in sequence along the length direction of the dynamic connecting rod 21, the first end portion is rotatably connected with the static connecting rod 23, the second end portion is rotatably connected with the kettle cover 120, and the intermediate portion is further provided with a first limiting block 27 located on the side of the dynamic connecting rod 21 facing the kettle cover 120, and the second end portion is further provided with a second limiting block 28 located on the other side of the dynamic connecting rod 21 away from the kettle cover 120, the first limiting block 27 and the second limiting block 28 are located on the rotation track of the kettle cover 120 relative to the dynamic connecting rod 21, and the first limiting block 27 and the second limiting block 28 form a limiting structure for limiting the rotation angle range of the kettle cover 120 and the dynamic connecting rod 21. Specifically, during the opening process of the kettle cover 120, after the first limiting block 27 of the intermediate portion of the dynamic connecting rod 21 contacts the kettle cover 120 (the first limiting block 27 will not contact the kettle cover 120 during the opening process), the first limiting block 27 will limit the rotation of the kettle cover 120 towards the dynamic connecting rod 21; after the kettle cover 120 is completely opened, the second limiting block 28 of the second end portion of the dynamic connecting rod 21 contacts the kettle cover 120, and the second limiting block 28 limits the continuous rotation of the kettle cover 120 to prevent the kettle cover 120 from falling down, thereby playing a protection role; during the closing process of the kettle cover 120, the first limiting block 27 of the intermediate portion of the dynamic connecting rod 21 gradually separates from the kettle cover 120, and after separation, the kettle cover 120 has the freedom of rotation, and first remains horizontal under the action of gravity, and then gradually contacts the kettle body flange after the kettle cover 120 continues to rotate and close together with the dynamic connecting rod 21, and after the kettle cover 120 is completely closed and pressed tightly, the gap between the kettle cover 120 and the kettle body flange is filled by the sealing structure, and then the handle of the pressing and supporting structure 16 is tightened, and the entire kettle body 110 reaches a completely sealed state.

[0056] Specifically, please refer to Figure 1 and Figure 8The driving mechanism 210 includes a servo motor 34, a gear transmission set 36, a ball screw 35, a push rod cylinder 32, and a piston rod 33. The piston rod 33 is movably connected with the push rod cylinder 32. One end of the piston rod 33 is connected with the moving link 21, and the other end is connected with the ball screw 35. The ball screw 35 is drivingly connected with the servo motor 34 through the gear transmission set 36. The piston rod 33 can move along its own axis under the driving of the servo motor 34, so as to pull the moving link 21 to rotate. Specifically, the driving mechanism 210 uses the servo motor 34 as a power source. The servo motor 34 drives the gear transmission set 36 to drive the ball screw to operate. The piston rod 33 in the push rod cylinder 32 performs the extension and retraction action. Through the extension and retraction of the piston rod 33, the moving link 21 is driven to rotate, and the cover 120 moves with the moving link 21 to realize the opening and closing actions. In the process of movement, the piston rod 33 can be started and stopped at any time. It should be noted that the configuration structure and configuration mode among the servo motor 34, the gear transmission set 36, the ball screw 35, the push rod cylinder 32, and the piston rod 33 can be known in the art, and the structure and mode of the stroke control are also known in the art. Here, no specific limitation is made.

[0057] More specifically, the piston rod 33 is rotatably connected with the moving link 21 through a third rotating shaft. More specifically, one end of the piston rod 33 is fixedly provided with a fish-eye joint 31. The fish-eye joint 31 is rotatably connected with the moving link 21 through the third rotating shaft. That is, the piston rod 33 and the moving link 21 also have a rotating degree of freedom.

[0058] More specifically, the driving mechanism 210 as a whole can be assembled on the push rod fixed lug 24, and the push rod fixed lug 24 can be fixedly arranged on the link fixed plate 25. Specifically, the push rod fixed lug 24 can be fixedly assembled on the link fixed plate 25 by bolts or the like.

[0059] In a more specific embodiment, the operation process of the automatic opening and closing cover sealing type reaction kettle can include the following steps:

[0060] Firstly, the handles of the four pressing support structures 16 are loosened.

[0061] Secondly, the servo motor 34 drives the piston rod 33 to retract, the moving link 21 rotates clockwise, and the cover 120 is lifted.

[0062] Thirdly, due to the action of gravity, the cover 120 contacts the first limiting block 27 in the middle part of the moving link 21 and rises together with the moving link 21.

[0063] Fourthly, the piston rod 33 retracts to the lower limit B and stops retraction. The cover 120 is completely opened.

[0064] The fifth step is to complete the raw material into the kettle body 110 or kettle body 110 material removal process step;

[0065] The sixth step, servo motor 34 driven piston rod 33 extension, dynamic link 21 counterclockwise rotation, kettle cover 120 follow the synchronous descent;

[0066] The seventh step, due to gravity, kettle cover 120 and the first limiting block 27 in the middle of the dynamic link 21 separation, kettle cover 120 relative to the dynamic link 21 rotation, but still follow the dynamic link 21 synchronous descent;

[0067] The eighth step, kettle cover 120 contact to kettle flange, rotation and self-adjusting parallelism during the descent process;

[0068] The ninth step, piston rod 33 extension to the upper limit A, stop extension, kettle cover 120 stop action;

[0069] The tenth step, the handle of the compression support structure 16 is tightened, and the sealing ring is completely compressed;

[0070] The above is a complete workflow. Preferably, after the closing action of the kettle cover 120 is completed, a pressure retention test can be used to detect the sealing performance. Preferably, the fish-eye joint 31 part of the piston rod 33 head is connected by a pin to limit the relative rotation between the fish-eye joint 31 and the piston rod 33.

[0071] Compared with the traditional open structure reaction kettle, the sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model adopts the automatic opening and closing cover mode, avoids the human loss and the safety hidden danger, the execution process is simple and reliable, the kettle cover is perpendicular to the kettle flange after the cover is opened, no extra space is occupied, and the addition of external large raw materials is also facilitated.

[0072] Compared with the few automatic cover opening structures disclosed, the sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model can achieve complete sealing of the kettle cover and the kettle body after the cover is closed without harsh overall machining of the kettle body, and avoids the damage of harmful gas to the personnel around the reaction kettle.

[0073] The middle and large-sized reaction kettle is welded and needs special large-sized machining equipment for overall machining, and the difficulty of overall machining is extremely high, and the automatic opening and closing cover process has a rotating stroke, and it is difficult to guarantee the parallelism of the kettle cover flange surface and the kettle body flange surface when the cover is closed. The sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model, the movable connecting rod is connected with the kettle cover as a rotating shaft, so that the kettle cover has the freedom of rotation, the limiting block is arranged at the end part and the middle part of the movable connecting rod, the rotating angle range of the kettle cover is controlled within 2-3 DEG, so that the kettle cover and the kettle body can fully rotate 2-3 DEG from the beginning of contact to the complete closing process, so that the kettle cover can be self-adjusted with the kettle body flange surface, the gap between the kettle cover and the kettle body is as small as possible after the kettle cover is closed, and the sealing ring can completely fill the gap.

[0074] The sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model can guarantee that the reaction kettle reaches the completely sealed state after automatic closing under the condition that only the flange surface is machined.

[0075] The sealing type reaction kettle with automatic opening and closing cover provided by the embodiment of the utility model can save a large amount of labor loss, reduce the time required for opening and closing and the safety hidden danger in the execution process, and make the sealing performance of the reaction kettle after closing better, reduce the machining difficulty, and avoid the personnel injury caused by harmful gas leakage in the reaction process.

[0076] It should be understood that the above-mentioned embodiments are only for illustrating the technical concept and characteristics of the utility model, the purpose is to enable the person skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent change or modification according to the essence of the utility model should be covered in the protection scope of the utility model.

Claims

1. A sealed reaction vessel with an automatic opening and closing lid, characterized in that, include: The vessel includes a lid, a vessel body, and a lid-opening / closing device. The lid is detachably mounted on the vessel body. The lid-opening / closing device includes a linkage structure and a drive mechanism. The linkage structure includes a stationary linkage and a movable linkage. The movable linkage is rotatably connected to the stationary linkage. The stationary linkage is fixedly fitted to the vessel body. The movable linkage is connected to the lid. The drive mechanism is drively connected to the movable linkage. The drive mechanism is used to drive the movable linkage to rotate. The lid can open and close as the movable linkage rotates. Furthermore, the lid and the movable linkage have rotational freedom, and the movable linkage and the lid can rotate relative to each other within a limited angle range.

2. The automatically opening and closing sealed reactor according to claim 1, characterized in that: The moving connecting rod has a first end, a middle part, and a second end arranged sequentially along its length. The first end is rotatably connected to the stationary connecting rod, and the second end is rotatably connected to the vessel lid. The middle part is also provided with a first limiting block located on the side of the moving connecting rod facing the vessel lid. The second end is also provided with a second limiting block located on the other side of the moving connecting rod facing away from the vessel lid. The first limiting block and the second limiting block are located on the rotation trajectory of the vessel lid relative to the moving connecting rod. The first limiting block and the second limiting block form a limiting structure that restricts the range of rotation angle between the vessel lid and the moving connecting rod.

3. The automatically opening and closing sealed reactor according to claim 1 or 2, characterized in that: The moving connecting rod is rotatably connected to the stationary connecting rod via a first rotating shaft, and the moving connecting rod is rotatably connected to the vessel lid via a second rotating shaft, and the vessel lid is rotatably connected to the vessel lid via a second rotating shaft; and / or, the second rotating shaft is parallel to the first rotating shaft; And / or, the connecting rod structure further includes at least one bearing, one of the inner ring and the outer ring of the bearing being fixedly connected to the moving connecting rod or the stationary connecting rod, and the other being fixedly connected to the first rotating shaft.

4. The automatically opening and closing sealed reactor according to claim 1 or 2, characterized in that: The moving link and / or the stationary link are further provided with reinforcing ribs, which are fixedly disposed on the surface of the moving link or the stationary link, and / or the reinforcing ribs are embedded inside the moving link or the stationary link.

5. The automatically opening and closing sealed reactor according to claim 1 or 2, characterized in that: The stationary connecting rod is detachably connected to the vessel body; And / or, a connecting rod mounting seat is fixed on the vessel body, and the bottom of the stationary connecting rod is fixedly mounted on the connecting rod mounting seat; And / or, a connecting rod fixing plate is fixedly provided at the bottom of the stationary connecting rod, the connecting rod fixing plate is fixedly connected to the connecting rod mounting seat via a threaded connector, and the connecting rod fixing plate is provided with an oblong hole that mates with the threaded connector; And / or, a pad is also provided between the stationary connecting rod and the connecting rod mounting seat; And / or, the side of the vessel body facing the stationary connecting rod is also provided with a reinforcing flange, and the stationary connecting rod is also fixedly connected to the reinforcing flange via a threaded connector.

6. The automatically opening and closing sealed reaction vessel according to claim 1, characterized in that: The drive mechanism includes a servo motor, a gear transmission assembly, a ball screw, a push rod cylinder, and a piston rod. The piston rod is movably engaged with the push rod cylinder. One end of the piston rod is connected to the moving connecting rod, and the other end is connected to the ball screw. The ball screw is connected to the servo motor via the gear transmission assembly. The piston rod can move along its own axis under the drive of the servo motor, thereby pulling the moving connecting rod to rotate. And / or, the piston rod is rotatably connected to the moving connecting rod; And / or, the piston rod and the moving connecting rod are rotatably connected via a third rotating shaft; And / or, one end of the piston rod is fixedly provided with a fisheye connector, and the fisheye connector is rotatably connected to the moving connecting rod via the third rotating shaft.

7. The automatically opening and closing sealed reaction vessel according to claim 1, characterized in that: A lid lug is fixedly provided on the lid, and the moving connecting rod is connected to the lid lug. And / or, the vessel lid is also provided with a rotating nozzle and an observation mirror.

8. The automatically opening and closing sealed reactor according to claim 7, characterized in that: The vessel lid includes a butterfly head and a vessel lid flange, the vessel lid flange being fixedly connected to the butterfly head, a vessel body flange being fixedly installed on the vessel body, the vessel lid flange being fixedly connected to the vessel body flange via a handle, and the automatically opening and closing sealed reaction vessel further includes a sealing structure, the sealing structure being disposed between the vessel body flange and the vessel lid flange, and respectively sealingly engaging with the vessel lid flange and the vessel body flange.

9. The automatically opening and closing sealed reaction vessel according to claim 8, characterized in that: The vessel lid flange and the vessel body flange are connected by x handles, and the x handles are equally spaced along the circumference of the vessel lid flange or the vessel body flange, x≥2; and / or, x clamping support structures are provided around the vessel lid flange, each handle corresponds to one clamping support structure, and a portion of the handle penetrates the clamping support structure.

10. The automatically opening and closing sealed reactor according to claim 8, characterized in that: The sealing structure includes y concentrically arranged sealing rings, and the sealing rings are elastic structures, where y≥2; And / or, the vessel cover flange face of the vessel cover flange and / or the vessel body flange face of the vessel body flange have y sealing grooves, and each of the sealing rings is partially disposed in the sealing groove; And / or, both the sealing ring and the sealing groove are dovetail-shaped structures, and the width of the portion of the sealing ring located outside the sealing groove is smaller than the width of the portion located inside the sealing groove.

Images