Modularized reaction kettle stirrer

Abstract

The invention discloses a modularized reaction kettle stirrer, and relates to the technical field of reaction kettles. According to the modularized reaction kettle stirrer, a rotating shaft is located at the axis of a reaction tank and is of a hollow structure, a stirring blade comprises a blade body and a long cylinder arranged at the end, close to the rotating shaft, of the blade body, the long cylinder is inserted into the rotating shaft in the radial direction of the rotating shaft, and a fixed shaft is located in the rotating shaft and is static relative to the reaction tank; a fixed rod is fixedly arranged in the area, opposite to the long cylinder, of the outer surface of the fixed shaft, and the fixed rod is inserted into the long cylinder; according to the modularized reaction kettle stirrer, by arranging the stirring blades capable of moving in the radial direction of the rotating shaft, the positions of the blade bodies in a reaction tank can be adjusted, so that the stirring areas of the modularized reaction kettle stirrer are different, the purpose that materials on the periphery in the reaction tank can also be stirred is achieved, the stirring area is greatly enlarged, and the stirring effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of reaction kettles, and particularly to a modular reaction kettle stirrer. Background Art

[0002] Reaction kettles are generally made of stainless steel. They are chemical reaction kettles with the advantages of high corrosion resistance, high temperature resistance, cleanliness and hygiene. Moreover, stainless steel reaction kettles are relatively inexpensive and very convenient to use. They are widely used in the pharmaceutical industry, food processing, chemical production and other fields, and have high production efficiency.

[0003] The reaction kettle stirring modules in the prior art are generally divided into stirring rod types and stirring blade types. For rod type stirring, the length of the stirring rod can be set relatively large to be infinitely close to the inner wall of the reaction tank, thereby expanding the stirring area. In the blade type stirring device, the blades cannot be made too wide. If they are made too wide, the blades will be subject to greater resistance from the material.

[0004] For example, the fully stirred stainless steel chemical reaction kettle proposed in the patent with the publication number CN107824146A is of the rod type stirring, so its stirring rod can be made relatively long.

[0005] For example, a stainless steel reaction kettle enhanced stirring mechanism proposed in the patent with the publication number CN212237279U is of the blade type stirring, and it is made relatively narrow.

[0006] However, the relatively narrow stirring blades have a smaller stirring range, reducing the stirring efficiency. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the present invention provides a modular reaction kettle stirrer, which solves the problem that the relatively narrow stirring blades in the prior art have a smaller stirring range and reduce the stirring efficiency.

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A modular reaction kettle stirrer, comprising: A reaction tank; A rotating shaft, which is located at the axis of the reaction tank and is of a hollow structure; Stirring blades, which include a blade body and a long cylinder provided at one end of the blade body close to the rotating shaft. The long cylinder is inserted into the rotating shaft along the radial direction of the rotating shaft; A fixed shaft, which is located inside the rotating shaft and is relatively stationary with respect to the reaction tank. Fixed rods are fixedly provided on the outer surface of the fixed shaft in the area opposite to the long cylinder, and the fixed rods are inserted into the long cylinder; A lifting assembly, which is located inside the rotating shaft and is used to drive the long cylinder to slide axially along the fixed rod to adjust the radial orientation of the blade body in the reaction tank.

[0009] Further, a rail groove is formed on the outer surface of the fixed rod. The rail groove is formed by staggered arrangement of a positive rotation groove and a reverse rotation groove. A slider capable of moving in the rail groove is provided on the inner surface of the long cylinder, so that when the long cylinder moves axially along the fixed rod, it can also deflect along its own center, so as to continuously adjust the stirring angle of the blade body.

[0010] Further, the lifting assembly includes: A positive and negative thread area located on the inner wall of the rotating shaft; A lifting block located in the area of the rotating shaft opposite to the positive and negative thread area. A protrusion is provided on the outer surface of the lifting block. When the rotating shaft rotates, the protrusion can slide in the positive and negative thread area to lift the lifting block; A guide rod provided on the fixed shaft for guiding the lifting block; An inner hinge seat rotatably installed on the long cylinder through a bearing. An inner connecting rod is hinged between the inner hinge seat and the lifting block.

[0011] Further, each group of stirring blades is equipped with a group of supporting components. The supporting components include a supporting slide rod and an outer sliding seat. An enlarged diameter part is provided in the area of the rotating shaft opposite to the long cylinder. The supporting slide rod is fixed in the area around the enlarged diameter part opposite to the long cylinder. The outer sliding seat is slidably sleeved on the supporting slide rod and is used to support the long cylinder during the process that the blade body gradually moves away from the center of the rotating shaft. The outer slide is rotatably connected to the long cylinder.

[0012] Further, the supporting component further includes a fixed collar and an outer pull rod. The fixed collar is located above the corresponding stirring blade and is assembled around the rotating shaft. An outer pull rod is fixedly provided between the fixed collar and the end of the supporting slide rod far away from the rotating shaft.

[0013] The blade body includes two layers of blades. Each layer of blade includes a semi-cylindrical tube and side pieces provided on both sides of the semi-cylindrical tube. The two layers of blades are connected by bolts; One end of the long cylinder far away from the rotating shaft is inserted into the semi-cylindrical tube.

[0014] Further, the fixed rod is a hollow tube. A plunger is provided inside the fixed rod. One end of the plunger is fixedly provided with a follower rod. The other end of the follower rod passes through the fixed rod and is fixed on the blade body. When the follower rod moves axially along the fixed rod, it can drive the plunger to reciprocate in the fixed rod, so that the space between the fixed rod and the fixed shaft is in a state of continuously changing positive pressure and negative pressure; The fixed shaft is of a hollow structure. Check valves are provided in the areas of the fixed shaft above and below the fixed rod. The lower end of the fixed shaft feeds materials, and the area near the upper end discharges materials.

[0015] Further, a lower empty area is provided in the area near the lower end of the rotating shaft. The lower end of the rotating shaft is rotatably installed at the bottom of the reaction tank through a bearing; A thickened portion is provided at a position near the lower end of the fixed shaft. The lower end of the thickened portion is fixed to the bottom of the reaction tank. A feed port is provided in a region of the thickened portion opposite to the lower empty area.

[0016] Further, an upper empty area is provided at a portion of the upper end of the rotating shaft located inside the reaction tank. A conical disk is provided at the lower end of the upper empty area. Flow dividing sheets are provided on the conical surface of the conical disk. A portion of the fixed shaft located inside the upper empty area is provided with an inner empty area.

[0017] Further, a speed reducer is provided above the reaction tank. An electric motor is provided above the speed reducer. The output shaft of the speed reducer is connected to the upper end of the rotating shaft.

[0018] The present invention has the following beneficial effects: (1) For this modular reaction kettle stirrer, by providing stirring blades that can move radially along the rotating shaft, the position of the blade body inside the reaction tank can be adjusted, so that the areas it can stir are different, achieving the purpose of stirring the materials inside and outside the reaction tank, greatly expanding the stirring area, improving the stirring effect, and when manufacturing, the diameter of the reaction tank can be made larger, thereby increasing the amount of materials in a single reaction.

[0019] (2) For this modular reaction kettle stirrer, by providing a positive rotation groove and a reverse rotation groove on the circumferential outer part of the fixed rod, the inclination angle of the blade body can be continuously adjusted, enabling it to achieve two motions of the materials generated by large inclination angles and small inclination angles, strengthening the stirring effect, and during the process of the angle change of the blade body itself, the above two motions are in an alternating change state, and this change node can further stir the materials, improving the stirring uniformity.

[0020] (3) For this modular reaction kettle stirrer, by equipping a plunger inside the fixed rod and driving the plunger to move by the movement of the stirring blade, the air pressure inside the fixed shaft can change when the plunger moves, and then the fixed shaft can absorb the materials sinking to the bottom at the lower end inside the reaction tank, and can discharge the materials absorbed by the fixed shaft from above, realizing the internal circulation of the materials.

[0021] (4) For this modular reaction kettle stirrer, a conical disk is provided. When the materials inside the fixed shaft continuously move upward, they can be discharged from the inner empty area. After being discharged, they can reach the upper surface of the conical disk. Also, due to the action of the flow dividing sheets, the materials can be evenly divided. And since the conical disk is fixed to the upper end surface of the rotating shaft, the rotation of the rotating shaft is used to generate a centrifugal force on the materials on its upper surface, causing the materials to be sprayed outward in a dot-like manner, improving the uniformity of the materials inside the fixed shaft entering the materials inside the reaction tank.

[0022] Of course, when implementing any product of the present invention, it is not necessarily required to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0023] Figure 1 is the overall diagram of the present invention; Figure 2 is the external view of the reaction tank of the present invention; Figure 3 is the schematic diagram of the internal structure of the reaction tank of the present invention; Figure 4 is the assembly drawing of the rotating shaft and the stirring blade of the present invention; Figure 5 is the sectional view of the rotating shaft of the present invention; Figure 6 is the present invention Figure 5 the schematic diagram of the structure without the assembled support component in the present invention; Figure 7 is the present invention Figure 6 the schematic diagram of the structure without the assembled lifting block in the present invention; Figure 8 is the schematic diagram of the position of the fixed rod of the present invention; Figure 9 is the present invention Figure 8 another perspective view; Figure 10 is the exploded view of the stirring blade and the fixed rod of the present invention; Figure 11 is the schematic diagram of the positive and negative thread area of the present invention; Figure 12 is the relative position diagram of the single-layer blade and the fixed rod of the present invention; Figure 13 is the schematic diagram of the position of the one-way valve of the present invention; Figure 14 is the present invention Figure 13 partial view; Figure 15 is the present invention Figure 4 enlarged view of Area A; Figure 16 is the schematic diagram of the structure of the upper empty area of the present invention; Figure 17 is the assembly drawing of the motor, coupling and speed reducer of the present invention; Figure 18 is the present invention Figure 4 enlarged view of Area B.

[0024] In the figure, 1 is a support leg; 2 is a reaction tank; 3 is a speed reducer; 31 is a coupling; 4 is a motor; 5 is a rotating shaft; 51 is a conical disc; 52 is a shunt piece; 53 is a diameter-expanding part; 54 is an upper empty area; 55 is a lower empty area; 6 is a stirring blade; 61 is a side piece; 62 is a semi-circular cylinder; 63 is a long cylinder; 631 is a slider; 7 is a lifting assembly; 71 is a lifting block; 72 is a guide rod; 73 is an inner connecting rod; 74 is an inner hinge seat; 75 is a positive and negative thread area; 76 is a protrusion; 8 is a support member; 81 is a fixed collar; 82 is an outer pull rod; 83 is an outer sliding seat; 84 is a support sliding rod; 9 is a fixed rod; 91 is a positive rotation groove; 92 is a reverse rotation groove; 10 is a fixed shaft; 101 is an inner empty area; 103 is a thickened part; 104 is a feed inlet; 11 is a one-way valve; 12 is a follower rod; 13 is a plunger. Detailed implementation mode

[0025] The following is based on Figures 1 - 18 to describe the modular reactor stirrer provided by the embodiments of the present invention.

[0026] Please refer to Figures 1 - 2 , the embodiments of the present invention provide a modular reactor stirrer, which includes a reaction tank 2 and a maintenance and operation platform that is basically at the same height as the upper end of the reaction tank 2.

[0027] A corresponding main feed inlet is provided above the reaction tank 2, and a corresponding main discharge outlet is provided below the reaction tank 2, which are respectively used for the entry and discharge of materials. A corresponding support leg 1 is provided below the reaction tank 2 to lift the main discharge outlet of the reaction tank 2 to a certain height, so as to facilitate the discharge of the materials at the main discharge outlet.

[0028] As shown in Figure 2 , Figure 3 and Figure 17 , a rotating shaft 5 is provided at the axis of the reaction tank 2, a speed reducer 3 is provided above the reaction tank 2, a motor 4 is provided above the speed reducer 3, a coupling 31 is provided between the motor 4 and the speed reducer 3, and the output shaft of the speed reducer 3 is connected to the rotating shaft 5, so that the rotating shaft 5 can be driven to rotate after the speed reducer 3 reduces the speed of the motor 4.

[0029] Combined with Figure 4 and Figure 5As shown, the above-mentioned rotating shaft 5 has a hollow structure, and stirring blades 6 are provided thereon. The stirring blades 6 include a blade body and a long cylinder 63 provided at one end of the blade body close to the rotating shaft 5. The blade body includes two layers of blades. Each layer of blade includes a semi-cylindrical tube 62 and side pieces 61 provided on both sides of the semi-cylindrical tube 62. The two layers of blades are connected by bolts. The two semi-cylindrical tubes 62 can form a complete cylindrical structure. The long cylinder 63 and the complete cylindrical structure are connected by a flange. A diameter-expanded portion 53 is provided on the rotating shaft 5 in a region opposite to the long cylinder 63. The long cylinder 63 is inserted into the diameter-expanded portion 53 along the radial direction of the rotating shaft 5. There is no mechanical connection between the long cylinder 63 and the diameter-expanded portion 53, and the long cylinder 63 can move along the radial direction of the diameter-expanded portion 53 on the diameter-expanded portion 53. In this embodiment, the long cylinder 63 and the diameter-expanded portion 53 are hermetically arranged, and a sealing ring can be used to achieve the seal.

[0030] Combined with Figures 5 - 7 As shown, in order to achieve the purpose that the long cylinder 63 can move along the radial direction of the diameter-expanded portion 53 on the diameter-expanded portion 53, a fixed shaft 10 and a lifting assembly 7 are provided here. The fixed shaft 10 is located inside the rotating shaft 5. The fixed shaft 10 is relatively stationary with respect to the reaction tank 2, that is, the fixed shaft 10 is in a fixed state. A fixed rod 9 is fixedly provided on the outer surface of the fixed shaft 10 in a region opposite to the long cylinder 63. The fixed rod 9 is inserted into the long cylinder 63. The lifting assembly 7 is located inside the rotating shaft 5. When the lifting assembly 7 works, it can apply a pushing and pulling force to the long cylinder 63, thereby driving the long cylinder 63 to slide along the axial direction of the fixed rod 9. In this way, the radial orientation of the blade body in the reaction tank 2 can be adjusted. When the position of the blade body on the radius of the reaction tank 2 is different, the area that it can stir is different, achieving the purpose that the materials inside and outside the reaction tank 2 can also be stirred.

[0031] Therefore, the modular reactor stirrer provided by the embodiment of the present invention can adjust the position of the blade body in the reaction tank 2, so that the area that it can stir is different, achieving the purpose that the materials inside and outside the reaction tank 2 can be stirred.

[0032] As Figures 8 - 10As shown, however, rotation is not equal to agitation. The purpose of agitation is to generate shear force, convection, and diffusion to disperse materials more evenly. Therefore, in the modular reactor agitator provided by the embodiments of the present invention, a rail groove is formed on the outer surface of the fixed rod 9. The rail groove is formed by the staggered arrangement of a positive rotation groove 91 and a reverse rotation groove 92. The inner surface of the long cylinder 63 is provided with a slider 631 that can move in the rail groove. When the long cylinder 63 is driven by the lifting assembly 7 to move axially along the fixed rod 9, the slider 631 can slide along the rail groove. Affected by the path of the rail groove, the slider 631 will push the fixed rod 9 to deflect along its own axis, thereby continuously adjusting the agitation angle of the blade body. The smaller the inclination angle of the blade body, the closer it is to being perpendicular to the rotation axis 5. When rotating, it generates strong shear force and centrifugal force on the liquid, mainly generating radial flow. The liquid is thrown at high speed towards the tank wall and then flows back up or down along the tank wall, forming a cycle, and at the same time, there is a strong circumferential flow (rotational component).

[0033] The larger the inclination angle of the blade body, the closer it is to being parallel to the rotation axis 5. When rotating, it mainly pushes the liquid to move along the axial or tangential direction. The liquid moves as a whole translation or laminar flow along the stirring shaft or the tank wall.

[0034] Continuously adjusting the inclination angle of the blade body can achieve the two kinds of movements of the material generated by the large inclination angle and the small inclination angle, strengthen the agitation effect, and during the process of the angle change of the blade body itself, the above two kinds of movements are in an alternating change state, and this change node can further agitate the material.

[0035] Referring to Figures 5 - 7 and Figure 11 As shown, the above-mentioned lifting assembly 7 includes a positive and reverse thread area 75, a lifting block 71, a guide rod 72, and an inner hinge seat 74.

[0036] The above-mentioned positive and reverse thread area 75 is located on the inner wall of the rotating shaft 5. The structure of the positive and reverse thread area 75 is similar to the structure of a reciprocating lead screw in the prior art. It is manifested as two thread grooves with the same pitch and opposite helix directions, and the two ends are connected by a transition curve. The lifting block 71 is located in the rotating shaft 5 in the area opposite to the positive and reverse thread area 75. A protrusion 76 is provided on the outer surface of the lifting block 71. When the rotating shaft 5 rotates, the protrusion 76 can slide in the positive and reverse thread area 75 to lift the lifting block 71. The guide rod 72 is provided on the fixed shaft 10 for guiding the lifting block 71. The inner hinge seat 74 is rotatably installed on the long cylinder 63 through a bearing, and an inner connecting rod 73 is hinged between the inner hinge seat 74 and the lifting block 71. In this embodiment, the guide rod 72 is a regular hexagonal prism to ensure that the lifting block 71 and the guide rod 72 remain relatively stationary in the circumferential direction, and the lifting block 71 can slide along the axial direction of the guide rod 72.

[0037] In this embodiment, when the rotating shaft 5 rotates, the internal left - right threaded area 75 also rotates. The lifting block 71 is guided by the guide rod 72 and can restrict the protrusion 76 from moving within the left - right threaded area 75, causing the lifting block 71 to move up and down. When the lifting block 71 moves downward, it can push the inner hinge seat 74 away from the center of the rotating shaft 5 through the inner connecting rod 73, thereby pushing the stirring blade 6 gradually away from the rotating shaft 5. At the same time, the slider 631 slides within the positive rotation groove 91 and the reverse rotation groove 92, realizing the angular change of the stirring blade 6.

[0038] In the above - mentioned solution, since the stirring blade 6 is supported not only by the fixed rod 9 but also by the side wall of the diameter - expanded part 53, when the stirring blade 6 gradually moves farther away from the center of the rotating shaft 5, the supporting ability of the fixed rod 9 for it becomes weaker. Therefore, the present invention also equips each group of stirring blades 6 with a set of supporting components 8 for dynamically supporting the stirring blade 6.

[0039] Refer to Figure 4 and Figure 18 As shown, specifically, the supporting component 8 here includes a supporting slide rod 84 and an outer slide seat 83. An area on the rotating shaft 5 opposite to the long cylinder 63 is provided with a diameter - expanded part 53. The supporting slide rod 84 is fixed in the area on the periphery of the diameter - expanded part 53 opposite to the supporting long cylinder 63. The outer slide seat 83 is slidably sleeved on the supporting slide rod 84 and is used to support the long cylinder 63 during the process of the blade body gradually moving away from the center of the rotating shaft 5. The outer slide seat 83 is rotatably connected to the supporting long cylinder 63. Thus, during the process of the stirring blade 6 gradually moving away from the rotating shaft 5, the outer slide seat 83 is always supported by the supporting slide rod 84, realizing the stable displacement of the stirring blade 6.

[0040] To further improve the supporting performance of the supporting slide rod 84, the supporting component 8 here also includes a fixed collar 81 and an outer pull rod 82. The fixed collar 81 is located above the corresponding stirring blade 6 and is assembled around the rotating shaft 5. An outer pull rod 82 is fixedly arranged between the fixed collar 81 and the end of the supporting slide rod 84 far from the rotating shaft 5. The outer pull rod 82 can provide a pulling force for the supporting slide rod 84 to ensure the stability of the supporting slide rod 84 and thus improve the supporting performance.

[0041] In addition, it should be noted that the end of the long cylinder 63 far from the rotating shaft 5 is inserted into the semi - arc cylinder 62, and the fixed rod 9 is set to be relatively long so that it is inserted into the part of the long cylinder 63 located within the semi - arc cylinder 62. Positive rotation grooves 91 and reverse rotation grooves 92 are also provided in the inserted part, and corresponding sliders 631 are arranged at the corresponding positions of the long cylinder 63, thereby improving the supporting ability of the fixed rod 9 for the stirring blade 6.

[0042] Combined with Figures 12 - 14As shown, the modular reactor agitator provided by the present invention can stir evenly in the radial direction of the reaction tank 2, but there is still a situation where the reaction materials sink to the bottom substantially. Therefore, on the basis of the above solution, the present invention also provides the following solution. The fixing rod 9 is a hollow tube, and a plunger 13 is arranged inside the fixing rod 9. One end of the plunger 13 is fixedly provided with a follower rod 12, and the other end of the follower rod 12 passes through the fixing rod 9 and is fixed on the blade body. During the process that the stirring blade 6 gradually moves away from the rotating shaft 5, the stirring blade 6 can gradually pull the follower rod 12, so that the follower rod 12 drags the plunger 13 in the fixing rod 9 to gradually move away from the center of the rotating shaft 5. On the contrary, during the process that the stirring blade 6 gradually approaches the rotating shaft 5, the stirring blade 6 can gradually push the follower rod 12, so that the follower rod 12 pushes the plunger 13 in the fixing rod 9 to gradually approach the center of the rotating shaft 5, forming a state that when the follower rod 12 moves along the axial direction of the fixing rod 9, it can drive the plunger 13 to reciprocate in the fixing rod 9. When the plunger 13 gradually moves away from the center of the rotating shaft 5, the space between the fixing rod 9 and the fixed shaft 10 is in a negative pressure state. On the contrary, when the plunger 13 gradually approaches the center of the rotating shaft 5, the space between the fixing rod 9 and the fixed shaft 10 is in a positive pressure state, thereby realizing a state where the space between the fixing rod 9 and the fixed shaft 10 is in a state of continuously changing positive and negative pressure.

[0043] The fixed shaft 10 is of a hollow structure, and one-way valves 11 are arranged in the areas above and below the fixing rod 9 on the fixed shaft 10. The lower end of the fixed shaft 10 feeds materials, and the area near the upper end discharges materials.

[0044] In this embodiment, when the space between the fixing rod 9 and the fixed shaft 10 is in a negative pressure state, the one-way valve 11 located below the fixing rod 9 is opened, and the one-way valve 11 located above the fixing rod 9 is closed. At this time, the fixed shaft 10 sucks materials from its lower end and sucks the materials sinking to the bottom into the fixed shaft 10. When the space between the fixing rod 9 and the fixed shaft 10 is in a positive pressure state, the one-way valve 11 located below the fixing rod 9 is closed, and the one-way valve 11 located above the fixing rod 9 is opened. At this time, the materials in the fixed shaft 10 flow upward until they reach the upper part of the fixed shaft 10 for discharging.

[0045] As Figure 4 and Figure 15 shown, in order to enable the materials sinking to the bottom to be sucked into the fixed shaft 10, a lower empty area 55 is provided in the area near the lower end of the rotating shaft 5. The lower end of the rotating shaft 5 is rotatably installed at the bottom of the reaction tank 2 through a bearing. The rotating shaft 5 installed at the lower end through a bearing is more stable. A thickening part 103 is provided at the position near the lower end of the fixed shaft 10. The lower end of the thickening part 103 is fixed at the bottom of the reaction tank 2. A feed port 104 is opened in the area of the thickening part 103 opposite to the lower empty area 55, so that when the space between the fixing rod 9 and the fixed shaft 10 is in a negative pressure state, materials can be absorbed from the feed port 104.

[0046] Combined Figure 4 and Figure 16As shown in the figure, in order to enable the material in the fixed shaft 10 to be discharged from the upper end, an upper empty area 54 is provided at the upper end of the rotating shaft 5 inside the reaction tank 2. A conical disk 51 is provided at the lower end of the upper empty area 54. Flow dividing sheets 52 are provided on the conical surface of the conical disk 51. An inner empty area 101 is provided in the part of the fixed shaft 10 located in the upper empty area 54.

[0047] In this embodiment, when the material in the fixed shaft 10 continuously moves upward, it can be discharged from the inner empty area 101. After being discharged, it can reach the upper surface of the conical disk 51. Also, due to the function of the flow dividing sheets 52, the material can be evenly divided. And since the conical disk 51 is fixed to the upper end surface of the rotating shaft 5, the conical disk 51 is actually in a rotating state. Thus, the material on the upper surface of the conical disk 51 is affected by the centrifugal force and can be sprayed outward in a dot-like manner, improving the uniformity of the material in the fixed shaft 10 entering the material in the reaction tank 2.

[0048] During use (operation), the required material is fed into the interior of the reaction tank 2 from the main feed port. The motor 4 is controlled to operate. Through the function of the speed reducer 3, the rotating shaft 5 is driven to rotate. When the rotating shaft 5 rotates, the stirring blades 6 can also rotate accordingly, thereby stirring the material inside the reaction tank 2. At the same time, when the rotating shaft 5 rotates, the left - right thread area 75 inside it is also in a rotating state. Thus, the lifting block 71 is restricted by the guiding rod 72 to move the protrusion 76 inside the left - right thread area 75, causing the lifting block 71 to move up and down. When the lifting block 71 moves downward, it can push the inner hinge seat 74 away from the center of the rotating shaft 5 through the inner connecting rod 73. The inner hinge seat 74 pushes the stirring blades 6 to gradually move away from the rotating shaft 5. In this way, the radial orientation of the blade body inside the reaction tank 2 can be adjusted. When the position of the blade body on the radius of the reaction tank 2 is different, the area it can stir is different, achieving the purpose that the materials inside and outside the reaction tank 2 can also be stirred, greatly expanding the stirring area and improving the stirring effect. During production, the diameter of the reaction tank 2 can be made larger, thereby increasing the amount of material for a single reaction. And when the lifting assembly 7 gradually moves downward, the stirring blades 6 gradually move away from the rotating shaft 5, and the stirring blades 6 gradually apply a pulling force through the outer pull rod 82. At this time, the support slide rod 84 is in a gradually compressed state. Since the support slide rod 84 has the ability to return to its natural state, it has an upward pulling force on the outer pull rod 82, thereby improving the supporting ability for the stirring blades 6 and ensuring the stability of the deflection and movement of the stirring blades 6.

[0049] Meanwhile, affected by the path of the rail groove, the slider 631 will push the fixed rod 9 to deflect around its own center, thereby continuously adjusting the stirring angle of the blade body. The smaller the inclination angle of the blade body, the closer it is to being perpendicular to the rotating shaft 5. When rotating, strong shear force and centrifugal force are generated on the liquid, mainly generating radial flow. The liquid is thrown at high speed towards the tank wall and then flows upward or downward along the tank wall, forming a cycle, accompanied by a strong circumferential flow (rotational component) at the same time. The larger the inclination angle of the blade body, the closer it is to being parallel to the rotating shaft 5. When rotating, it mainly pushes the liquid to move along the axial or tangential direction. The liquid makes an overall translation or laminar flow along the stirring shaft or the tank wall. Continuously adjusting the inclination angle of the blade body can achieve the two kinds of movements of the material generated by the large inclination angle and the small inclination angle, strengthen the stirring effect, and during the process of the angle change of the blade body itself, the above two kinds of movements are in an alternating change state, and this change node can further stir the material.

[0050] Meanwhile, during the process that the stirring blade 6 gradually moves away from the rotating shaft 5, the stirring blade 6 can gradually pull the follower rod 12, so that the follower rod 12 drags the plunger 13 in the fixed rod 9 to gradually move away from the center of the rotating shaft 5. When the plunger 13 gradually moves away from the center of the rotating shaft 5, the space between the fixed rod 9 and the fixed shaft 10 is in a negative pressure state. At this time, the one-way valve 11 located below the fixed rod 9 opens, and the one-way valve 11 located above the fixed rod 9 closes. At this time, the fixed shaft 10 sucks materials from its lower end and sucks the materials settled at the bottom into the fixed shaft 10. On the contrary, during the process that the stirring blade 6 gradually approaches the rotating shaft 5, the stirring blade 6 can gradually push the follower rod 12, so that the follower rod 12 pushes the plunger 13 in the fixed rod 9 to gradually approach the center of the rotating shaft 5. The space between the fixed rod 9 and the fixed shaft 10 is in a positive pressure state. The one-way valve 11 located below the fixed rod 9 closes, and the one-way valve 11 located above the fixed rod 9 opens. At this time, the materials in the fixed shaft 10 flow upward until they reach the upper part of the fixed shaft 10 for discharging. After being discharged, they can reach the upper surface of the conical disc 51. Also due to the action of the shunt piece 52, the materials can be evenly shunted. And because the conical disc 51 is fixed on the upper end face of the rotating shaft 5, the conical disc 51 is actually in a rotating state. Therefore, the materials on the upper surface of the conical disc 51 are affected by the centrifugal force and can be sprayed outward in a dot shape, improving the uniformity of the materials in the fixed shaft 10 entering the materials in the reaction tank 2.

Claims

1. A modular reactor agitator, characterized in that, Comprising: A reaction tank (2); A rotating shaft (5), which is located at the center of the reaction tank (2), and the rotating shaft (5) is of a hollow structure; Stirring blades (6), the stirring blades (6) include blade bodies and long cylinders (63) provided at one end of the blade bodies close to the rotating shaft (5), and the long cylinders (63) are inserted into the rotating shaft (5) along the radial direction of the rotating shaft (5); A fixed shaft (10), which is located inside the rotating shaft (5), the fixed shaft (10) is relatively stationary with respect to the reaction tank (2), and fixing rods (9) are fixedly provided in the area of the outer surface of the fixed shaft (10) opposite to the long cylinder (63), and the fixing rods (9) are inserted into the long cylinder (63); A lifting assembly (7), which is located inside the rotating shaft (5) and is used to drive the long cylinder (63) to slide axially along the fixing rod (9) to adjust the radial orientation of the blade body in the reaction tank (2).

2. The modular reactor agitator according to claim 1, characterized in that: A rail groove is formed on the outer surface of the fixing rod (9), and the rail groove is formed by the staggered arrangement of a positive rotation groove (91) and a reverse rotation groove (92). A slider (631) capable of traveling in the rail groove is provided on the inner surface of the long cylinder (63), so that when the long cylinder (63) moves axially along the fixing rod (9), it can also deflect along its own center to continuously adjust the stirring angle of the blade body.

3. A modular reactor stirrer according to claim 2, characterized in that: The lifting assembly (7) includes: A positive and reverse thread area (75), which is located on the inner wall of the rotating shaft (5); A lifting block (71), which is located in the area inside the rotating shaft (5) opposite to the positive and reverse thread area (75). A protrusion (76) is provided on the outer surface of the lifting block (71), and when the rotating shaft (5) rotates, the protrusion (76) can slide in the positive and reverse thread area (75) to lift the lifting block (71); A guiding rod (72), which is provided on the fixed shaft (10) and is used to guide the lifting block (71); An inner hinge seat (74), which is rotatably installed on the long cylinder (63) through a bearing, and an inner connecting rod (73) is hinged between the inner hinge seat (74) and the lifting block (71).

4. The modular reactor agitator according to claim 3, wherein: Each group of stirring blades (6) is equipped with a group of supporting components (8), and the supporting components (8) include supporting sliding rods (84) and outer sliding seats (83). A diameter-expanded part (53) is provided on the rotating shaft (5) in the area opposite to the long cylinder (63). The supporting sliding rods (84) are fixed in the area of the periphery of the diameter-expanded part (53) opposite to the supporting long cylinder (63), and the outer sliding seats (83) are slidably sleeved on the supporting sliding rods (84) and are used to support the long cylinder (63) during the process that the blade body gradually moves away from the center of the rotating shaft (5), and the outer sliding seats (83) are rotatably connected to the supporting long cylinder (63).

5. A modular reactor agitator according to claim 4, characterized in that: The supporting component (8) further includes a fixed collar (81) and an outer pull rod (82). The fixed collar (81) is located above the corresponding stirring blade (6), and the fixed collar (81) is assembled on the periphery of the rotating shaft (5), and an outer pull rod (82) is fixedly provided between the fixed collar (81) and the end of the supporting sliding rod (84) far away from the rotating shaft (5).

6. The modular reactor stirrer according to claim 5, wherein: The blade body includes two layers of blades. Each layer of blade includes a semi-circular cylinder (62) and side plates (61) provided on both sides of the semi-circular cylinder (62). The two layers of blades are connected by bolts; One end of the long cylinder (63) far from the rotating shaft (5) is inserted into the semi-circular cylinder (62).

7. A modular reactor agitator according to any one of claims 1-6, characterized in that: The fixed rod (9) is a hollow tube. A plunger (13) is provided inside the fixed rod (9). One end of the plunger (13) is fixedly provided with a follower rod (12). The other end of the follower rod (12) passes through the fixed rod (9) and is fixed on the blade body. When the follower rod (12) moves axially along the fixed rod (9), it can drive the plunger (13) to reciprocate inside the fixed rod (9), so that the space between the fixed rod (9) and the fixed shaft (10) is in a state of continuously changing positive and negative pressure; The fixed shaft (10) is of a hollow structure. Check valves (11) are provided in the areas above and below the fixed rod (9) on the fixed shaft (10). The lower end of the fixed shaft (10) is for feeding, and the area near the upper end is for discharging.

8. A modular reactor agitator according to claim 7, characterized in that: A lower empty area (55) is provided in the area near the lower end of the rotating shaft (5). The lower end of the rotating shaft (5) is rotatably installed at the bottom of the reaction tank (2) through a bearing; A thickening part (103) is provided at a position near the lower end of the fixed shaft (10). The lower end of the thickening part (103) is fixed at the bottom of the reaction tank (2). A feed port (104) is provided in the area of the thickening part (103) opposite to the lower empty area (55).

9. The modular reactor agitator according to claim 8, characterized in that: The part of the upper end of the rotating shaft (5) located inside the reaction tank (2) is provided with an upper empty area (54). A conical disc (51) is provided at the lower end of the upper empty area (54). Flow dividing sheets (52) are provided on the conical surface of the conical disc (51); The part of the fixed shaft (10) located inside the upper empty area (54) is provided with an inner empty area (101).

10. A modular reactor agitator according to claim 1, characterized in that: A speed reducer (3) is provided above the reaction tank (2). An electric motor (4) is provided above the speed reducer (3). The output shaft of the speed reducer (3) is connected to the upper end of the rotating shaft (5).

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