High-shear stirring reaction and jet mixing combined device
By combining high-shear stirring reaction and jet mixing device, the problems of uneven mixing and insufficient heat transfer in precipitation reaction are solved, realizing uniform mixing of the medium and temperature control, and ensuring the consistency of crystal size.
Patent Information
- Application Number
- CN202423196507.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing mixing devices struggle to achieve rapid and uniform mixing of precipitation reactions under high shear and large circulation conditions, resulting in uneven reaction nucleation and crystal growth environments, as well as insufficient heat transfer performance, which affects crystal size uniformity.
The device employs a combination of high-shear stirring reaction and jet mixing, comprising a high-shear reactor and a jet mixer. The medium is mixed by pressurizing it with a circulating pump, and the special structure of the jet mixer enables uniform mixing and temperature control of the medium.
Rapid and uniform mixing of the precipitation reaction medium was achieved, satisfying the constant environment for reaction nucleation and crystal growth, ensuring temperature uniformity, and obtaining uniform crystal size.
Smart Images
Figure CN223602515U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to stirring mixing device technical field, especially to a kind of high shear stirring reaction and injection mixing combination device. BACKGROUND
[0002] Stirring mixing is the mixing mode commonly used in industry, and is widely used in food, chemical, pharmaceutical, environmental protection and other industries. Based on the mixed medium, there are homogeneous mixing and heterogeneous mixing, and heterogeneous mixing includes gas-liquid mixing, liquid-liquid mixing and liquid-solid mixing. There are mixing of low viscosity medium and mixing of high viscosity medium, and chemical reaction may occur between some media in stirring mixing.
[0003] For medium mixing requiring specific chemical reaction, according to various mixing requirements, it is generally required to mix quickly and uniformly. Therefore, various mixing devices have been developed in the prior art, such as high shear stirrers and large circulation stirrers. However, for the case of requiring both high shear and large circulation, especially for precipitation reaction, it is required to mix media quickly and uniformly to achieve rapid reaction nucleation, and it is also required to have uniform large circulation to meet the constant crystal growth environment and high heat transfer performance to ensure uniformity of temperature and obtain uniform crystal size. SUMMARY
[0004] The utility model provides a kind of high shear stirring reaction and injection mixing combination device, and meets the requirements of reaction nucleation of precipitation reaction, and uniform crystal growth environment and high heat transfer performance, to ensure the uniformity of precipitation reaction concentration and temperature, to obtain uniform particle size.
[0005] The utility model provides a kind of high shear stirring reaction and injection mixing combination device, and meets the requirements of reaction nucleation of precipitation reaction, and uniform crystal growth environment and high heat transfer performance, to ensure the uniformity of precipitation reaction concentration and temperature, to obtain uniform particle size.
[0006] Preferably, the reaction container is sleeved with a jacket, and the jacket surface is provided with a heating / cooling medium inlet and a heating / cooling medium outlet.
[0007] Preferably, the inner cavity of the flow guide cylinder is communicated with a medium container provided outside the reaction container and filled with reaction medium I and reaction medium II.
[0008] Preferably, the high shear impeller is powered by a motor provided outside the reaction container.
[0009] Preferably, the injection mixer is a Venturi nozzle, the inlet cylinder section of the injection mixer is connected with the nozzle of the circulation pipe, the outlet of the diffusion section of the injection mixer is arranged obliquely upward, and the suction inlet is arranged on the side of the inlet cylinder section of the injection mixer.
[0010] Preferably, the inlet of the circulation pipe is arranged at one side of the bottom of the reaction container, the outlet of the circulation pipe is connected with the inlet of the injection mixer, and the jet outlet of the injection mixer is arranged obliquely upward.
[0011] The beneficial effect is that: the utility model discloses a circulation pipeline is arranged in the reaction container, and the small crystal suspension that is formed by rapid reaction nucleation in the high shear reactor is pressurized by the circulation pump and is transported to the injection mixer, and the suction inlet is arranged on the side of the injection mixer, and due to the special structure of the throat of the injection mixer, the reaction medium in the reaction container that is not pressurized by the circulation pipe is also sucked into the injection mixer, is mixed with the reaction medium that is pressurized by the circulation and enters the diffusion section of the injection mixer, and finally flows out in the form of jet from the outlet of the injection mixer, so that the fluid in the whole reactor is fully mixed, and especially for the precipitation reaction, the medium is required to be mixed quickly and uniformly to meet the reaction nucleation, and uniform large circulation is required to meet the constant crystal growth environment and high heat transfer performance to ensure the uniform temperature, and finally the uniform crystal size is obtained. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a high shear stirring reaction and injection mixing combined device structure schematic view.
[0013] Figure 2 It is Figure 1 It is a high shear stirring reaction and injection mixing combined device structure schematic view.
[0014] Figure 3 It is Figure 1 It is a high shear stirring reaction and injection mixing combined device structure schematic view.
[0015] Wherein, A-reaction medium one;B-reaction medium two;1-reaction container;2-high shear reactor;3-flow guide cylinder;4-motor;5-injection mixer;6-circulation pump;7-circulation pipe;8-jacket;9-heating / cooling medium outlet;10-heating / cooling medium inlet;11-high shear impeller;12-suction inlet;13-flow guide groove;14-nozzle;15-diffusion section. DETAILED DESCRIPTION
[0016] The utility model is further described below in combination with specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and not to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.
[0017] As shown in Figure 1 The utility model provides a kind of high shear stirring reaction and injection mixing combined device, including reaction container 1, high shear reactor 2 and injection mixer 5 are equipped in the reaction container 1, the high shear reactor 2 includes feed pipe and the flow guide tube 3 of high shear impeller 11 inside, the high shear reactor 2 is communicated with the inner cavity of the reaction container 1 by the flow guide groove 13 being arranged in the peripheral side of the flow guide tube 3, the reaction container 1 is connected with the injection mixer 5 by circulation pipe, the outlet of the injection mixer 5 is arranged in the reaction container 1, circulation pump 7 is equipped on the circulation pipe.
[0018] As shown in Figure 2 The flow guide tube 3 is equipped with high shear impeller 11, the high shear impeller 11 is prior art, including power input shaft and a plurality of high shear blades arranged around the power input shaft, can effectively be uniformly stirred to medium.The high shear impeller 11 is powered by motor 4 arranged outside the reaction container 1, so that the reaction medium in its interior is fully mixed and continuously flows out to the flow guide tube 3.
[0019] The reaction container 1 is sleeved with jacket 8, heating / cooling medium inlet 10 and heating / cooling medium outlet 9 are equipped on the surface of the jacket 8, and heating / cooling medium is supplemented in the jacket 8 by external pump.The reaction container 1 provides the heat required for reaction or absorbs the heat released by reaction by the heating / cooling medium in the jacket 8, to ensure that the temperature of reaction container 1 is stable.
[0020] In a specific embodiment, the inner cavity of the flow guide tube 3 is communicated with the medium container arranged outside the reaction container 1 and injected with reaction medium one A and reaction medium two B.In other embodiments, the medium container can contain reaction medium, and the number and type of reaction medium are not limited to two kinds.The medium container can continuously supplement reaction medium in its interior by external pump, or supplement reaction medium by replacing the medium container once, which is not involved in the creation point of the present application and will not be described here.
[0021] As shown in Figure 3 The injection mixer 5 is venturi nozzle, the inlet cylinder section of the injection mixer 5 is connected with the nozzle 14 of the circulation pipe, the outlet diffusion section 15 of the injection mixer 5 is arranged obliquely upward, and the suction inlet 12 is opened on the side surface of the inlet cylinder section of the injection mixer 5.
[0022] The inlet of the circulation pipe is arranged at one side of the bottom of the reaction container 1, the outlet of the circulation pipe is connected with the inlet of the jet mixer 5, and the jet outlet of the jet mixer 5 is arranged in an upward inclination.
[0023] In a specific embodiment, the utility model is a batch reactor, each batch of material is discharged from the start of addition to the end of reaction, the reaction container 1 can be opened and the reaction product is discharged at one time. If the utility model is used for continuous reaction, the bottom of the reaction container 1 should be provided with a valve discharge port, and the output speed can be controlled.
[0024] When in use, at least two reaction mediums flow into the high shear reactor 2 from the medium containers to carry out preliminary reaction, the reaction mediums after preliminary reaction flow into the flow guide cylinder 3 to obtain high energy density and strengthen micro mixing; the flow guide grooves 13 arranged on the periphery of the flow guide cylinder 3 make the reaction mediums after sufficient reaction flow from the flow guide cylinder 3 into the reaction container 1; because the flow rate of the reaction mediums flowing out of the flow guide grooves 13 is slow, the reaction mediums cannot be fully dispersed to cause the temperature of the reaction mediums to be uneven, in order to solve the problem, the reaction mediums flowing into the reaction container 1 are pressurized by the circulation pump 7 and are pumped to the jet mixer 5 in the upper part of the reaction container 1 to be sprayed out, meanwhile, the jet mixer 5 is provided with the suction inlet 12 on the side, when the reaction mediums are sprayed out of the jet mixer 5, the reaction mediums not pressurized around the throat are also sucked into the throat of the jet mixer 5, mixed with the reaction mediums pressurized by the circulation pump 7 and finally sprayed out from the outlet of the jet mixer 5 in the form of jet, so that the reaction mediums in the whole reaction container 1 are fully mixed to achieve the purpose of uniform concentration and temperature.
Claims
1. A high shear agitated reaction and jet mixing combined apparatus comprising a reaction vessel, characterized in that, The reaction container is provided with a high shear reactor and a jet mixer, the high shear reactor comprises a feeding pipe and a flow guide tube provided with a high shear impeller inside, the high shear reactor is communicated with the inner cavity of the reaction container through a flow guide groove provided on the circumferential side of the flow guide tube, the reaction container is connected with the jet mixer through a circulating pipe, the outlet of the jet mixer is arranged inside the reaction container, and a circulating pump is arranged on the circulating pipe.
2. A high shear mixing reaction and jetting combined apparatus according to claim 1, wherein The reaction container is provided with a jacket, and the surface of the jacket is provided with a heating / cooling medium inlet and a heating / cooling medium outlet.
3. A high shear mixing reaction and jetting combined apparatus according to claim 1, wherein The inner cavity of the flow guide tube is communicated with a medium container arranged outside the reaction container and filled with reaction medium I and reaction medium II.
4. A high shear mixing reaction and jetting combined apparatus according to claim 1, wherein The high shear impeller is powered by a motor arranged outside the reaction container.
5. A high shear mixing reaction and jetting combined apparatus according to claim 1, wherein The jet mixer is a Venturi nozzle, the inlet cylinder section of the jet mixer is connected with the nozzle of the circulating pipe, the outlet of the diffusion section of the jet mixer is arranged obliquely upward, and the inlet cylinder section of the jet mixer is provided with an inlet on the side surface.
6. A high shear mixing reaction and jetting combined apparatus according to claim 1, wherein The inlet of the circulating pipe is arranged on one side of the bottom of the reaction container, the outlet of the circulating pipe is connected with the inlet of the jet mixer, and the jet outlet of the jet mixer is arranged obliquely upward.