CN-121972108-A - Flow channel structure of micro-channel reactor

CN121972108ACN 121972108 ACN121972108 ACN 121972108ACN-121972108-A

Abstract

The invention belongs to the technical field of liquid-liquid extraction equipment, and particularly relates to a flow channel structure of a micro-channel reactor with a combination of a circle and a water drop, which comprises a main board and a concave flow channel, wherein the main board is provided with the concave flow channel, the concave flow channel comprises a plurality of circle structures, the circle structures are mutually connected, the circle structures are internally provided with the water drop-like structures, the concave flow channel is connected through a connecting channel, the open end of the concave flow channel is connected with a liquid inlet II, one side of the liquid inlet II is connected with a liquid inlet I, and the tail end of the concave flow channel is connected with a liquid outlet. The embedded drop-like structure in the concave flow channel can enable the fluid to flow more stably, flow separation is not easy to generate, the turbulence degree of mixed liquid is effectively reduced, and then the emulsification phenomenon during the mixing of metallurgical extraction liquid and liquid is reduced, so that the key flow channel support is provided for realizing low-energy consumption, low-cost and low-pollution operation of the metallurgical extraction process.

Inventors

XU JUN
SONG LIJUN
PAN QIXIN
WANG GUANGHUA
ZHANG XUEXIAN
SONG JITAN
WANG HAILONG
YU HONGBO
Lv Suhuan
GAO YINZHONG
XI HAILONG

Assignees

金川集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260127

Claims (6)

1. The flow channel structure of the microchannel reactor comprises a main board and a recessed flow channel and is characterized in that the recessed flow channel is arranged on the main board (5) and comprises a plurality of round structures (6), the round structures (6) are connected with each other, a plurality of drop-like structures (7) are arranged in the round structures (6), the recessed flow channel is connected with each other through a connecting channel (2), a second liquid inlet (4) is connected with the open end of the recessed flow channel, a first liquid inlet (3) is connected to one side of the second liquid inlet (4), and a liquid outlet (1) is connected to the tail end of the recessed flow channel.
2. A flow channel structure of a microchannel reactor according to claim 1, characterized in that adjacent circular structures (6) are horizontally coronally tangent at the connection, and a plurality of circular structures (6) are horizontally and uniformly distributed on the main plate (5).
3. A flow channel structure of a microchannel reactor according to claim 1, wherein the drop-like structure (7) is divided into a round end, a transition section and a straight line section, and both sides of the transition section are tangent to the round end and the straight line section respectively.
4. A flow channel structure of a microchannel reactor according to claim 1, wherein the drop-like structure (7) and the circular structure (6) are axisymmetric structures, and the symmetry axis is the center line.
5. A flow channel structure of a microchannel reactor according to claim 2, wherein the diameter of the circular structures (6) is phi B, the height of the horizontal coronal tangents of adjacent circular structures (6) is H, and the height H of the horizontal coronal tangents is required to satisfy 。
6. A flow channel structure of a microchannel reactor as set forth in claim 3 or 5, wherein the length of the droplet-like structure (7) is h, the length h of the droplet-like structure (7) being required to satisfy 。

Description

Flow channel structure of micro-channel reactor Technical Field The invention belongs to the technical field of liquid-liquid extraction equipment, and particularly relates to a flow channel structure of a micro-channel reactor combining a round shape with water drops. Background In the traditional metallurgical extraction process, liquid-liquid extraction mainly depends on equipment such as a reaction kettle, an extraction box, a stirring tank and the like, the core problems are concentrated on mixing efficiency and emulsification control, compared with the traditional reaction kettle, a micro-channel reactor can improve mass transfer efficiency by virtue of a micro-reaction space, but the traditional micro-channel runner mostly adopts a complex runner type, and in an extraction process system, a fluid flow stability regulation and control and turbulence inhibition mechanism has obvious optimization space, namely a high-intensity turbulence effect is easy to induce in a local corner area of a flow field, the effect can obviously improve the breaking and coalescence frequency of dispersed phase liquid drops, and further the formation and development of a system emulsification phenomenon are aggravated, and adverse effects are formed on the extraction mass transfer efficiency and a subsequent phase separation process. Therefore, it is necessary to design a flow channel structure of a micro-channel reactor, which can optimize the fluid flow state, reduce the turbulence degree and the emulsification phenomenon, and is used for a specific extraction scene, so as to improve the extraction efficiency. Disclosure of Invention Aiming at the problems in the prior art, the invention aims to provide a flow channel structure of a micro-channel reactor so as to solve the problems of high turbulence degree and frequent emulsification during liquid-liquid mixing of a micro-channel flow channel. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a runner structure of microchannel reactor, includes mainboard and concave runner, be provided with concave runner on the mainboard, concave runner includes a plurality of circular structures, a plurality of interconnect between the circular structure, a plurality of be provided with the drop-like shape structure in the circular structure, connect through the connecting channel between the concave runner, concave runner open end is connected with inlet two, inlet two one side access inlet one, concave runner end-to-end connection has the liquid outlet. More preferably, adjacent circular structures are tangent in a horizontal crown shape at the connection part, and a plurality of circular structures are horizontally and uniformly distributed on the main board. More preferably, the drop-like structure is divided into a round end, a transition section and a straight line section, and two sides of the transition section are respectively tangent with the round end and the straight line section. More preferably, the drop-like structure and the circular structure are axisymmetric structures, and the symmetry axis is a center line. More preferably, the diameter of the circular structure is phi B, the height of the horizontal coronal tangents of the adjacent circular structures is H, and the height H of the horizontal coronal tangents needs to be satisfied。 More preferably, the length h of the drop-like structure is h, and the length h of the drop-like structure needs to satisfy。 Compared with the prior art, the invention has the following beneficial effects: According to the invention, the drop-shaped flow channel is nested in the recessed flow channel, the structure forms a drop-shaped flow channel, the round end of the drop-shaped structure and the round structure form a liquid inlet, the tip of the drop-shaped structure and the round structure form a liquid outlet, the flow Reynolds number of fluid is reduced, the turbulence degree is weakened, the round end and the tip of the drop-shaped structure are tangential and transitional, so that the flow separation and a high-shear area caused by an acute angle are effectively avoided, and the low Reynolds number flow state is maintained; The invention can make the fluid flow more stable, is not easy to generate flow separation, effectively reduces the turbulence degree of the mixed liquid, further reduces the emulsification phenomenon during the mixing of the metallurgical extraction liquid and the liquid, and provides a key flow passage support for realizing low-energy consumption, low-cost and low-pollution operation of the metallurgical extraction process. Drawings FIG. 1 is a schematic diagram of the structure of the present invention; FIG. 2 is a three-dimensional schematic of the present invention; FIG. 3 is a partial schematic view of the present invention; FIG. 4 is a partial cross-sectional view of a recessed flow channel of the present invention; FIG. 5 is a