An automatic stirring reactor

Abstract

The present invention provides an automatically stirred reactor, comprising a reactor body, an external circulation cooling structure, and a self-stirring structure. The reactor body has an inlet and a outlet at its top and bottom, respectively. The external circulation cooling structure connects to the inlet and outlet, directing material downwards from the outlet for cooling and backflowing from the inlet. The self-stirring structure includes a guide pipe connected to the inlet, which is curved and feeds material tangentially into the reactor body, causing the material to impact the liquid surface and rotate. This invention, through the external circulation cooling structure combined with the guide pipe on the self-stirring structure, achieves a stirring effect without the need for a motor, saving energy and reducing leakage points. The stirring paddle assembly, based on the guide pipe, utilizes the flow of material to generate power, creating a stirring motion within the reactor body. This motion counteracts the stirring generated by the guide pipe, promoting mixing through turbulence.

Description

Technical Field

[0001] This invention relates to the field of reaction vessel technology, and in particular to an automatic stirring reaction vessel. Background Technology

[0002] Reactors are commonly used reaction vessels in the chemical industry for mixing and reacting materials. To ensure thorough mixing, stirring is a common method used within the reactor. For example, Chinese invention patent CN 102861548B describes a stirred reactor. This stirred reactor includes a sealed cylindrical body with a reaction chamber. A shaft-shaped stirring rod is inserted into the upper part of the cylinder. A motor is mounted at the upper end of the stirring rod to drive its rotation, and a stirring paddle is fixedly connected to the bottom end of the stirring rod. The motor-driven stirring agitation promotes material mixing.

[0003] In the aforementioned prior art, a stirring device is conventionally installed inside the reactor to stir the internal materials and promote mixing. However, the stirring device is usually driven by a motor, and the shaft runs from the outside of the reactor to the inside, increasing the potential leakage points and making leakage a problem. Therefore, the existence of potential leakage points in the reactor due to the existing stirring device is a technical problem that needs to be solved. Summary of the Invention

[0004] In view of this, it is necessary to provide an automatic stirring reactor to solve the technical problem that the existing stirring device in the prior art causes leakage points in the reactor body.

[0005] To achieve the above-mentioned technical objectives, the present invention provides an automatic stirred reactor, comprising:

[0006] The vessel body has a feed inlet and a discharge outlet at its top and bottom ends, respectively.

[0007] An external circulation cooling structure is used to connect the inlet and the outlet, so that the material is discharged downward from the outlet of the vessel body for cooling and then returned from the inlet.

[0008] The self-stirring structure includes a guide pipe connected to the feed inlet. The guide pipe is curved and feeds material from the tangential direction of the vessel body, causing the material to impact the liquid surface and rotate.

[0009] Furthermore, the external circulation cooling structure includes a feed pipe, a heat exchanger, a circulation pump, and a conveying pipe. The two ends of the feed pipe are connected and communicate with the feed end of the heat exchanger and the discharge port of the vessel body, respectively. The two ends of the conveying pipe are connected and communicate with the discharge end of the heat exchanger and the feed inlet of the vessel body, respectively. The circulation pump is installed on the feed pipe and is used to draw material along the feed pipe to the heat exchanger.

[0010] Furthermore, the conveying pipe is also equipped with a flow rate regulating valve to control the flow rate of the material input through the conveying pipe.

[0011] Furthermore, the self-stirring structure also includes a stirring paddle assembly, which includes a manifold box, a rotating component, and a paddle body. The manifold box is connected to the inner top wall of the vessel body via a bracket. The paddle body is disposed at the bottom of the rotating component, which is rotatably connected to the manifold box and has several pushing blades disposed thereon. The manifold box is provided with a connecting pipe with one end facing the blade surface of the pushing blades, and the other end of the connecting pipe is connected to and communicates with the feed inlet. The top ends of several of the guide pipes are all connected to and communicate with the manifold box, and the bottom ends of the guide pipes are all oriented in the opposite direction to the rotation direction of the rotating component.

[0012] Furthermore, the pusher blade includes a horizontal pusher section and a side flow section. The side flow section is disposed on both sides of the horizontal pusher section and forms a U-shape with the horizontal pusher section. The connecting pipe faces the inner arc surface of the U-shape of the horizontal pusher section, so that the outer arc surface of the U-shape faces the direction of rotation.

[0013] Furthermore, slots are provided at the bottom of both the flat push section and the side flow section.

[0014] Furthermore, the cross-sections of both the push section and the side flow section are curved surfaces that curve backward.

[0015] Furthermore, the drainage tube is connected to the manifold via a diversion pipe fitting, which includes an annular pipe and a connecting pipe. The annular pipe is located at the bottom of the manifold, and the two ends of the connecting pipe are respectively connected to the annular pipe and the outside of the manifold. The top end of the drainage tube is connected to and communicates with the bottom end of the annular pipe.

[0016] Furthermore, the propeller body includes a rotating shaft and blades, the rotating shaft is connected to the rotating component and extends downward through the junction box, and the blades are disposed on the rotating shaft.

[0017] Furthermore, a mechanical seal is provided between the rotating shaft and the junction box.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By combining the external circulation cooling structure with the drainage tube on the self-stirring structure, a stirring effect that does not require motor drive can be achieved, saving energy and reducing leakage points.

[0020] 2. Through the stirring paddle assembly, based on the inlet pipe, the flow of material provides power to form a stirring paddle inside the vessel, which counteracts the stirring generated by the inlet pipe, promoting mixing in a turbulent manner. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the automatically stirred reactor according to an embodiment of the present invention;

[0022] Figure 2 This is a three-dimensional partial cross-sectional view of the vessel body according to an embodiment of the present invention;

[0023] Figure 3 This is a three-dimensional diagram of the self-stirring structure according to an embodiment of the present invention;

[0024] Figure 4 This is a top cross-sectional view of the impeller assembly according to an embodiment of the present invention;

[0025] Figure 5 This is a bottom view of the self-stirring structure according to an embodiment of the present invention;

[0026] Figure 6 This is a top view of the pusher blade and rotating component according to an embodiment of the present invention;

[0027] Figure 7 This is a three-dimensional view of the actuating blade according to an embodiment of the present invention;

[0028] Figure 8 This is a cross-sectional view of the driving blade according to an embodiment of the present invention;

[0029] In the diagram: 1. Reactor body; 101. Feed inlet; 102. Discharge outlet;

[0030] 2. External circulation cooling structure; 21. Feed inlet pipe; 22. Heat exchanger; 23. Circulation pump; 24. Feed conveying pipe; 25. Flow rate regulating valve;

[0031] 3. Self-stirring structure; 31. Drainage pipe; 32. Stirring paddle assembly; 301. Propeller blade; 302. Connecting pipe; 303. Diverting pipe fitting;

[0032] 321. Combiner box; 322. Rotating component; 323. Propeller body; 3231. Shaft; 3232. Propeller blade;

[0033] 3011, Horizontal push section; 3012, Side flow section; 3013, Slot;

[0034] 3031, ring pipe; 3032, connecting pipe. Detailed Implementation

[0035] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0036] like Figure 1-2As shown, the present invention provides an automatic stirring reactor, including a reactor body 1, an external circulation cooling structure 2 and a self-stirring structure 3. The external circulation cooling structure 2 cools the internal material outside the reactor body 1 and forms a circulation flow path, so that when it is reinjected into the reactor body 1, it can have an impact effect on the internal liquid surface, thereby agitating the material inside the reactor body 1.

[0037] Specifically, the top and bottom of the vessel body 1 are respectively provided with a feed inlet 101 and a discharge outlet 102, with feeding from the top and discharge from the bottom. The external circulation cooling structure 2 is used to connect the feed inlet 101 and the discharge outlet 102, guiding the material downwards from the discharge outlet 102 of the vessel body 1 for cooling and returning it from the feed inlet 101. The self-stirring structure 3 includes a guide pipe 31 connected to the feed inlet 101. The guide pipe 31 is curved and feeds material from the tangential direction of the vessel body 1, causing the material to impact the liquid surface and rotate. This avoids the motor connecting shaft penetrating the vessel body 1, thereby reducing leakage points and eliminating the need for a motor drive, saving energy.

[0038] Understandably, the number of drainage tubes 31 is not limited to one; multiple tubes can be provided, evenly distributed along the circumference of the inner wall of the vessel 1, and feeding along the tangential angle that generates rotation, in order to promote the effect of rotation.

[0039] In one embodiment, to provide an active external circulation cooling function, see [reference needed]. Figure 1 The external circulation cooling structure 2 includes a feed pipe 21, a heat exchanger 22, a circulation pump 23, and a conveying pipe 24. The two ends of the feed pipe 21 are connected to the feed end of the heat exchanger 22 and the discharge port 102 of the vessel 1, respectively. The two ends of the conveying pipe 24 are connected to the discharge end of the heat exchanger 22 and the feed port 101 of the vessel 1, respectively. The circulation pump 23 is installed on the feed pipe 21 and is used to draw material along the feed pipe 21 to the heat exchanger 22. By starting the circulation pump 23, a circulation loop is generated in the feed pipe 21, the heat exchanger 22, the conveying pipe 24, and the vessel 1, thereby externally circulating and cooling the material in the vessel 1 and providing the power for the material flow.

[0040] Furthermore, in order to regulate the rotational speed generated by the diversion pipe 31, a flow rate regulating valve 25 is also provided on the conveying pipe 24 to control the flow rate of the material input through the conveying pipe 24, thereby regulating the impact force of the material discharged from the diversion pipe 31 on the liquid surface, and thus regulating the generated stirring speed.

[0041] In one embodiment, to achieve a more thorough mixing effect, see [reference needed]. Figure 2-5The self-stirring structure 3 further includes a stirring paddle assembly 32, which comprises a manifold box 321, a rotating component 322, and a paddle body 323. The manifold box 321 is connected to the inner top wall of the vessel body 1 via a bracket. The manifold box 321 is circular in shape and is used to transfer materials flowing back into the vessel body 1 from the external circulation cooling structure 2. The paddle body 323 is disposed at the bottom of the rotating component 322. The rotating component 322 is rotatably connected to the manifold box 321. The rotating component 322 is disc-shaped and rotates inside the manifold box 321. It is provided with several pushing blades 301, which serve as the driving unit for the rotating component 322. When impacted, the pushing blades 301 drive the rotating component 322 to rotate, thereby driving the paddle body 323 to rotate for stirring. The manifold 321 is provided with a connecting pipe 302 with one end facing the blade surface of the pusher blade 301. The other end of the connecting pipe 302 is connected to and communicates with the feed inlet 101, thereby forming a structure that impacts the pusher blade 301 with the return material, and generates the rotational power of the stirring paddle assembly 32 with its own return power.

[0042] Furthermore, the top ends of several of the drainage pipes 31 are connected to and communicate with the manifold 321, and the bottom ends of the drainage pipes 31 are oriented in the opposite direction to the rotation direction of the rotating component 322, thereby counteracting the rotation generated by the paddle 323 and promoting mixing through turbulence.

[0043] The propeller body 323 includes a rotating shaft 3231 and a blade 3232. The rotating shaft 3231 is connected to the rotating component 322 and passes downward through the junction box 321. The blade 3232 is disposed on the rotating shaft 3231, and the rotating shaft 3231 drives the blade 3232 to generate agitation.

[0044] In addition, a mechanical seal is provided between the rotating shaft 3231 and the junction box 321 to provide a sealing effect between the rotating shaft 3231 and the junction box 321.

[0045] Understandably, the drain pipe 31, as a subsequent diversion unit, and the stirring paddle assembly 32 can form two different stirring modes, thereby creating a comprehensive stirring effect and promoting mixing. Furthermore, since the stirring paddle assembly 32 is located inside the vessel body 1 and has no external penetrating structure, there will be no additional leakage points.

[0046] In one embodiment, to absorb the impact force and reduce the resistance to rotation within the fluid, see [reference needed]. Figure 6-8The pusher blade 301 includes a horizontal pusher 3011 and a side flow section 3012. The side flow section 3012 is disposed on both sides of the horizontal pusher 3011 and forms a U-shape with the horizontal pusher 3011. The connecting pipe 302 faces the inner arc surface of the U-shape of the horizontal pusher 3011, so that the outer arc surface of the U-shape faces the direction of rotation. The inner arc surface of the U-shape receives the impact of the injected material in a wrapping manner, and when rotating, the outer arc surface of the U-shape pushes away the material in front, thereby reducing the resistance to rotation within the fluid.

[0047] Understandably, the side of the flat pusher 3011 facing the direction of rotation is also set as a centrally raised arc surface, which extends gently to the side of the two side flow sections 3012 facing the direction of rotation.

[0048] Furthermore, in order to reduce the amount of material stuck on the side that receives the impact of the material, the bottom of both the flat push part 3011 and the side flow part 3012 are provided with slots 3013 for material flow.

[0049] Furthermore, in order to receive material in the direction of impact, the cross-sections of the flat pusher 3011 and the side flow section 3012 are both curved surfaces that bend backwards, so that the pusher blade 301 can be easily driven to rotate towards the material injection point.

[0050] In one embodiment, to ensure that multiple drainage tubes 31 have flow channels of equal length, see [reference needed]. Figure 5 The guide pipe 31 and the manifold 321 are connected by a diversion pipe 303. The diversion pipe 303 includes an annular pipe 3031 and a connecting pipe 3032. The annular pipe 3031 is located at the bottom of the manifold 321 and is coaxial with the rotation axis, so that it is located at the axis of the vessel body 1. The two ends of the connecting pipe 3032 are respectively connected to the annular pipe 3031 and the outside of the manifold 321, thereby guiding the material in the manifold 321 into the annular pipe 3031. The top end of the guide pipe 31 is connected and communicates with the bottom end of the annular pipe 3031. The annular pipe 3031 is annular. When the guide pipe 31 is set, its length can be easily controlled to be equal when it is guided to the tangent position of the inner wall of the vessel body 1, so that the generated vortex is more uniform.

[0051] The specific working process of this invention is as follows: By starting the circulating pump 23, the material inside the vessel 1 is discharged from the discharge port 102, flows into the heat exchanger 22 through the feed pipe 21, and after heat exchange, the flow rate is regulated by the flow rate regulating valve 25 from the feed pipe 24, and then enters the connecting pipe 302 through the feed port 101, and is then injected into the manifold 321. During the injection process, the pusher blade 301 is impacted, which drives the rotating component 322 to rotate, thereby driving the rotating shaft 3231 and the blade 3232 to stir the material inside the vessel 1. Furthermore, the material flowing out of the manifold 321 is diverted to multiple guide pipes 31 through the connecting pipe 3032 and the annular pipe 3031. The guide pipes 31 then push the material toward the liquid surface in a tangential direction opposite to the stirring direction of the stirring paddle assembly 32, thereby promoting mixing through turbulence.

[0052] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic stirring reaction vessel characterized by, The utility model relates to a kind of self-stirring kettle, including: Kettle body, the top end and bottom end of the kettle body are provided with feed inlet and discharge outlet respectively; External circulation cooling structure, the external circulation cooling structure is used to interface the feed inlet and discharge outlet, material is guided from the discharge outlet of the kettle body downward and is cooled and back flows from the feed inlet; Self-stirring structure, the self-stirring structure includes flow guide pipe communicated with the feed inlet, the flow guide pipe is curved and feeds from the tangent direction of the kettle body, and material is impacted liquid surface and forms rotation; The external circulation cooling structure includes material guide pipe, heat exchanger, circulating pump and material conveying pipe, both ends of the material guide pipe are connected and communicated with the heat exchanger feed end and the discharge outlet of the kettle body respectively, both ends of the material conveying pipe are connected and communicated with the heat exchanger discharge end and the feed inlet of the kettle body respectively, the circulating pump is arranged on the material guide pipe, for pumping material along the material guide pipe to the heat exchanger; Flow speed regulating valve is further provided on the material conveying pipe, for controlling the flow speed of material input through the material conveying pipe; The self-stirring structure further includes stirring paddle assembly, the stirring paddle assembly includes current collection box, rotating part and paddle body, the current collection box is connected with the inner top wall of the kettle body by support, the paddle body is arranged at the bottom of the rotating part, the rotating part is rotatably connected in the current collection box, and a plurality of push leaves are arranged on it, a communication pipe with one end towards the leaf surface of push leaf is arranged on the current collection box, the other end of the communication pipe is connected and communicated with the feed inlet, wherein, the top end of a plurality of flow guide pipes is connected and communicated with the current collection box, and the bottom end of the flow guide pipe is opposite to the rotating direction of the rotating part.

2. The automated stirred reaction vessel of claim 1, wherein, The push leaf includes flat push part and side flow part, the side flow part is arranged on both sides of the flat push part and forms U shape with the flat push part, the communication pipe is towards the inner arc surface of the U shape of the flat push part, so that the outer arc surface of U shape is towards the rotating direction.

3. The automated stirred reaction vessel of claim 2, wherein, The bottom of the flat push part and the side flow part is provided with notch.

4. The automated stirred reaction vessel of claim 3, wherein, The cross section of the flat push part and the side flow part is arc surface curved to the rear side.

5. The automated stirred reaction vessel of claim 4, wherein, The flow guide pipe and the current collection box are connected by shunt pipe, the shunt pipe includes annular pipe and connecting pipe, the annular pipe is arranged at the bottom of the current collection box, both ends of the connecting pipe are connected with the annular pipe and the outside of the current collection box respectively, and the top end of the flow guide pipe is connected and communicated with the bottom end of the annular pipe.

6. The automated stirred reaction vessel of claim 5, wherein, The paddle body includes shaft and paddle blade, the shaft is connected with the rotating part and penetrates downward through the current collection box, and the paddle blade is arranged on the shaft.

7. The automated stirred reaction vessel of claim 6, wherein, Mechanical seal is arranged between the shaft and the current collection box.

Images