Micro-nano bubble gas-liquid mixing reactor

Abstract

The utility model relates to the technical field of chemical reaction equipment, in particular to a micro-nano bubble gas-liquid mixing reactor. Comprising a reactor outer shell, a spiral shear dispersion paddle, a sawtooth multi-stage mixing reaction umbrella, a gas-liquid distribution pipe, a gas-liquid mixed material inlet, an exhaust port, an auxiliary material liquid inlet, a drain outlet, a defoaming net, an instrument detection port, a middle partition plate and a material liquid outlet. A material port enters the reactor from the lower end in the tangential direction and is sprayed to the spiral shearing dispersion paddle at a high speed in a countercurrent rotation mode, gas rotating at a high speed is cut and dispersed for multiple times to form extremely fine micro-nano bubbles, and the micro-nano bubbles can remarkably enhance the material transfer rate and improve the reaction efficiency; the method is suitable for multiple fields of water treatment, chemical engineering, food, biotechnology and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical reaction equipment technical field, concretely relates to a kind of equipment for promoting gas-liquid two-phase high-efficiency mixing and chemical reaction using micro-nano bubbles, with Compact structure, low energy consumption, easy operation, maintenance is easy and the like Advantages.It is applicable to water treatment, chemical industry, food and biotechnology and multiple fields. BACKGROUND

[0002] In numerous industrial and scientific research applications, the reaction effect of gas-liquid mixing directly affects the operation efficiency of the reaction and the quality of the final product. The traditional gas-liquid mixing reactor, due to the large diameter of the aeration gas bubble and uneven distribution, often has difficulty in achieving efficient dispersion and dissolution of the gas. By generating micro-nano bubbles and mixing with the solution, the limitations of the traditional gas-liquid mixing reactor can be greatly overcome. Micro-nano bubbles not only have a large specific surface area and dissolution efficiency, but also can significantly enhance the mass transfer rate, which is important for improving the speed of material chemical reaction, shortening the reaction time, and playing an important role in special reactions. Therefore, it is particularly important to develop a gas-liquid mixing reactor that can stably and efficiently generate micro-nano bubbles and ensure their good distribution in the liquid medium. SUMMARY

[0003] The utility model relates to chemical reaction equipment technical field, concretely relates to a kind of equipment for promoting gas-liquid two-phase high-efficiency mixing and chemical reaction using micro-nano bubbles, with Compact structure, low energy consumption, easy operation, maintenance is easy and the like Advantages.It is applicable to water treatment, chemical industry, food and biotechnology and multiple fields.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A micro-nano bubble gas-liquid mixing reactor is designed, which includes a reactor shell, a spiral shear dispersion paddle arranged in the lower part of the reactor, a sawtooth multi-stage mixing reaction umbrella arranged in the upper part of the reactor, a demister net arranged on the upper part of the sawtooth multi-stage mixing reaction umbrella, and a spiral shear dispersion paddle and a sawtooth multi-stage mixing reaction umbrella, which are separated by an intermediate partition and connected in the center by a gas-liquid distribution pipe. The gas-liquid mixture inlet and the auxiliary liquid inlet enter the reactor horizontally at the lower part, the reactor upper part is provided with an exhaust port, an instrument detection port and a liquid outlet, and the bottom is provided with a sewage outlet.

[0006] Further, the reactor, the gas-liquid mixture liquid and the auxiliary liquid enter the reactor in a vertical tangent direction from the lower part, and are injected at high speed in a countercurrent rotating manner onto the spiral shear dispersion paddle under the action of the delivery pump.

[0007] Further, the spiral shear dispersion paddle is located at the upper part of the feed liquid inlet and is rotationally distributed, and is combined in one or more layers, and when combined in multiple layers, the spiral shear dispersion paddle is rotationally distributed, and the rotation angle of each layer is between 5-30 degrees, and the rotation direction is opposite to the flow direction of the feed liquid.

[0008] Further, the spiral shear dispersion paddle is fixed on the gas-liquid distribution pipe, and the horizontal included angle is between 10-90 degrees, and the paddle form is any one or combination of turbine type, paddle type and propelling type.

[0009] Further, the sawtooth multi-stage mixing reaction umbrella is located at the upper part of the intermediate partition plate and is composed of one layer to multiple layers of umbrella-shaped dispersion structures containing sawteeth.

[0010] Further, the sawtooth multi-stage mixing reaction umbrella is fixed on the gas-liquid distribution pipe, and the included angle between the sawtooth multi-stage mixing reaction umbrella and the gas-liquid distribution pipe is between 10-90 degrees.

[0011] Further, the gas-liquid distribution pipe is provided with flow guide holes at the upper and lower positions of the intermediate partition plate, the lower part is a gas-liquid distribution pipe lower flow guide liquid inlet hole, and the upper part is a gas-liquid distribution pipe upper flow guide liquid outlet hole, and the number of the gas-liquid distribution pipe upper flow guide liquid outlet holes corresponds to the number of layers of the sawtooth multi-stage mixing reaction umbrella.

[0012] The micro-nano bubble gas-liquid mixing reactor can achieve the following beneficial effects:

[0013] (1) High gas-liquid mixing efficiency:

[0014] Compared with the prior art, the device can realize uniform dispersion and efficient dissolution of gas, significantly increase the contact area of gas and liquid, greatly improve the gas dissolution efficiency and the stability of the reaction process.

[0015] (2) Optimized gas-liquid contact conditions:

[0016] The micro-nano bubble has a large specific surface area, can significantly enhance the mass transfer rate, realizes deep interaction between the bubble and the liquid through special kettle body design, greatly enhances the reaction effect, improves the reaction speed, shortens the reaction time and plays an important role in specific reactions.

[0017] (3) High-efficiency modular design:

[0018] All parts are designed in a modular manner, which is convenient to install, easy to maintain and manage, and the modular structure is convenient to disassemble and clean, thereby simplifying the daily maintenance process. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other embodiments and drawings can be obtained from the drawings shown in the embodiments without creative labor.

[0020] Figure 1 The basic structure diagram of the present application.

[0021] Explanation of figure mark:

[0022] 1, reactor shell outer body, 2, spiral shear dispersion paddle, 3, sawtooth multistage mixing reaction umbrella, 4, gas-liquid distribution pipe, 41 gas-liquid distribution pipe lower flow guide liquid inlet hole, 42 gas-liquid distribution pipe upper flow guide liquid outlet hole, 5, gas-liquid mixture inlet, 6, exhaust port, 7, auxiliary liquid inlet, 8, blowdown port, 9, demister, 10, instrument detection port, 11, intermediate partition, 12, liquid outlet Specific implementation

[0023] The technical solutions of the embodiments of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of the present application.

[0024] Embodiment 1

[0025] Micro-nano bubble gas-liquid mixing reactor for organic wastewater treatment.

[0026] The equipment parameters in this embodiment are as follows: reactor height 3.5 meters, reactor diameter 1.0 meter, spiral shear dispersion paddle adopts 12-leaf open turbine paddle, paddle horizontal angle 45 degrees, paddle layer number 9, paddle length 0.4 meters, paddle width 0.06 meters, each layer of paddle is installed with 10 degrees rotation, the included angle between sawtooth multistage mixing reaction umbrella and positioning gas distribution pipe is 60 degrees, the number of layers is 5, and the equipment material is SUS316L stainless steel.

[0027] In this embodiment: ozone gas and organic wastewater containing through gas-liquid mixing pump or jet device to form gas-liquid mixture material, from the gas-liquid mixture material into the reactor, acid and base solution from the auxiliary liquid into the reactor, ozone gas is high-efficiency cutting into nanoscale bubbles, nanoscale ozone bubble has great specific surface area and dissolution efficiency, and can be reacted with water molecules to generate free radicals with extremely strong oxidation ability (mostly hydroxyl radicals ·OH, which can completely mineralize or decompose most organic matter), organic matter and nanoscale ozone bubbles and hydroxyl radicals, ozone in the spiral shear dispersion paddle area and organic matter reaction, into the gas-liquid distribution pipe, into the area of sawtooth multistage mixing reaction umbrella to continue to react, at the same time, gas-liquid begins to disperse, during the whole process, most of the organic matter in the wastewater is mineralized and decomposed, the reacted material liquid passes through the defoaming net to remove the foam, and finally the liquid is discharged from the material liquid outlet, and the remaining gas is discharged from the exhaust port. At present, the reactor of the traditional explosion aeration method cannot produce micro-nano bubbles and hydroxyl radicals, and the treatment capacity and efficiency are low. The micro-nano bubble gas-liquid mixing reactor can significantly improve the diffusion, mass transfer and reaction efficiency of the gas, and can occur specific reactions, greatly accelerating the degradation rate of organic matter.

[0028] Example 2

[0029] Micro-nano bubble gas-liquid mixing reactor for carbonated beverage production.

[0030] In this embodiment, the equipment parameters are as follows: the height of the reactor is 3.0 meters, the diameter of the reactor is 1.5 meters, the spiral shear dispersion paddle adopts 6-leaf open turbine paddle, the paddle horizontal angle is 30 degrees, the paddle layer number is 6, the paddle length is 0.65 meters, the paddle width is 0.1 meters, each layer of paddle is installed with a rotation of 15 degrees, the angle between the sawtooth multistage mixing reaction umbrella and the positioning gas distribution pipe is 45 degrees, the layer number is 2, and the equipment material is food-grade SUS304 stainless steel.

[0031] In this embodiment: carbon dioxide gas and pure water through gas-liquid mixing pump or jet device to form gas-liquid mixture material, from the gas-liquid mixture material into the reactor, concentrated juice and other additives from the auxiliary liquid into the reactor, carbon dioxide gas is high-efficiency cutting into nanoscale bubbles to form bubble water, and then fully mixed with other auxiliary materials to form carbonated beverages with corresponding flavors. The mixed gas-saturated carbonated beverage enters the gas-liquid distribution pipe and is introduced into the area of the sawtooth multistage mixing reaction umbrella, and the undissolved gas and carbonated beverage liquid are gradually dispersed. The defoaming net removes the foam in the carbonated beverage, and finally the carbonated beverage is discharged from the material liquid outlet, and the remaining gas is discharged from the exhaust port. By accurately controlling the flow ratio and mixing intensity of the gas and liquid, fine distribution and stable and efficient dissolution of carbon dioxide bubbles are achieved. Using the micro-nano bubble gas-liquid mixing reactor to produce carbonated beverages not only improves the production efficiency, but also improves the taste and quality of the products.

[0032] The various embodiments provided by the utility model can be combined with each other in any mode as required, and the technical solutions obtained through the combination are also within the scope of the utility model.

[0033] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model are within the scope of the utility model claims and the equivalent technology, the utility model also includes these modifications and variations.

Claims

1. A micro-nano bubble gas-liquid mixed reactor, characterized in that, The reactor shell (1) comprises a helical shear dispersion paddle (2) arranged in the lower part of the reactor, a sawtooth multi-stage mixing reaction umbrella (3) arranged in the upper part of the reactor, a defoaming net (9) arranged in the upper part of the sawtooth multi-stage mixing reaction umbrella (3), and a helical shear dispersion paddle (2) and a sawtooth multi-stage mixing reaction umbrella (3) between them, which are separated by an intermediate partition (11) and connected by a gas-liquid distribution pipe (4). The gas-liquid mixture inlet (5) and the auxiliary liquid inlet (7) enter the reactor horizontally from the lower part. The reactor is provided with an exhaust port (6), an instrument detection port (10) and a liquid outlet (12) in the upper part, and a sewage outlet (8) in the bottom.

2. The micro-nano bubble gas-liquid mixed reactor according to claim 1, characterized in that, The gas-liquid mixture inlet (5) and the auxiliary liquid inlet (7) enter the reactor vertically from the lower part. 3.The micro-nano bubble gas-liquid mixed reactor according to claim 1, characterized in that, The helical shear dispersion paddle (2) is located in the upper part of the liquid inlet, and is combined in one or more layers. When combined in multiple layers, the helical shear dispersion paddle (2) is a rotating distribution, and the rotation angle of each layer is between 5-30 degrees, and the rotation direction is opposite to the flow direction of the liquid. 4.The micro-nano bubble gas-liquid mixed reactor according to claim 1, characterized in that, The helical shear dispersion paddle (2) is fixed on the gas-liquid distribution pipe, and the horizontal included angle is between 10-90 degrees. The paddle form is any one or combination of turbine type, paddle type and propelling type. 5.The micro-nano bubble gas-liquid mixed reactor according to claim 1, characterized in that, The sawtooth multi-stage mixing reaction umbrella (3) is located in the upper part of the intermediate partition, and is composed of one or more layers of umbrella-shaped dispersion structures containing sawteeth. 6.The micro-nano bubble gas-liquid mixed reactor according to claim 1, characterized in that, The sawtooth multi-stage mixing reaction umbrella (3) is fixed on the gas-liquid distribution pipe (4), and the included angle between the sawtooth multi-stage mixing reaction umbrella (3) and the gas-liquid distribution pipe (4) is between 10-90 degrees.

7. The micro-nano bubble gas-liquid mixed reactor according to claim 1, characterized in that, The gas-liquid distribution pipe has guide holes in the upper and lower positions of the intermediate partition (11). The lower part is a gas-liquid distribution pipe lower guide liquid inlet hole (41), and the upper part is an upper guide liquid outlet hole (42). The number of upper guide liquid outlet holes (42) corresponds to the number of layers of sawtooth multi-stage mixing reaction umbrellas (3).

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