Gas-liquid-solid three-phase reactor for generating micro-nano bubbles

Abstract

The utility model relates to the technical field of chemical reaction equipment, in particular to a gas-liquid-solid three-phase reactor for generating micro-nano bubbles, and aims to improve the mass transfer efficiency and reaction effect among gas, liquid and solid phases. The reactor comprises a gas-liquid-solid three-phase reactor shell, a solid material collection unit, a spiral shear dispersion type micro-nano bubble generation unit, a sawtooth baffle guide cylinder and an electric stirring device. Through the synergistic effect of all the components, efficient mass transfer mixing and efficient three-phase reaction are achieved, and the reactor is suitable for various chemical reaction processes and application scenes needing efficient mass transfer and high-speed mixing reaction, such as multiple fields of environmental governance, industrial water treatment, chemical synthesis, bioengineering and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical reaction equipment technical field, concretely relates to a kind of gas-liquid-solid three-phase reactor of micro-nano bubble generation, to improve the mass transfer efficiency and reaction effect between gas-liquid-solid three-phase.It is realized that efficient mass transfer mixing and efficient three-phase reaction by the synergistic effect of each component, with compact structure, high efficiency, low energy consumption, easy operation, easy maintenance and other advantages, applicable to a variety of need efficient mass transfer and high-speed mixing reaction rate chemical reaction process and application scene, such as environmental management, industrial water treatment, chemical synthesis, bioengineering and multiple fields. BACKGROUND

[0002] In production process, gas-liquid-solid three-phase reaction is a common chemical reaction type, widely used in environmental management, industrial water treatment, chemical synthesis, bioengineering and other fields, and the reaction effect of gas-liquid-solid three-phase mixing directly affects the operation efficiency of chemical reaction and the quality of final product.However, in the existing gas-liquid-solid three-phase reactor, the low mass transfer efficiency is a common problem, and the traditional gas-liquid-solid three-phase reactor has limited gas-liquid-solid contact area due to large gas bubble diameter, which seriously affects the mass transfer efficiency and reaction speed.

[0003] In order to solve the above problems, the utility model provides a kind of micro-nano bubble gas-liquid-solid three-phase reactor, by introducing micro-nano bubble technology, using the characteristics of micro-nano bubble with extremely small size, to enhance the contact area of gas-liquid-solid three-phase, enhance mass transfer effect, which can greatly break through the limitations of traditional gas-liquid mixing reactor, so as to realize more efficient and more uniform gas-liquid-solid three-phase reaction. UTILITY MODEL CONTENT

[0004] The utility model relates to chemical reaction equipment technical field, concretely relates to a kind of gas-liquid-solid three-phase reactor of micro-nano bubble generation, to improve the mass transfer efficiency and reaction effect between gas-liquid-solid three-phase.It is realized that efficient mass transfer mixing and efficient three-phase reaction by the synergistic effect of each component, with compact structure, high efficiency, low energy consumption, easy operation, easy maintenance and other advantages, applicable to a variety of need efficient mass transfer and high-speed mixing reaction rate chemical reaction process and application scene, such as environmental management, industrial water treatment, chemical synthesis, bioengineering and multiple fields.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model relates to a kind of gas-liquid-solid three-phase reactor of generating micro-nano bubble, including gas-liquid-solid three-phase reactor shell, solid material collection unit is arranged on the bottom of reactor and shell circumferential with reactor and forms ring angle, spiral shear dispersion type micro-nano bubble generation unit is arranged in the lower portion of reactor and sawtooth baffle draft tube, located in the central position of reactor and sawtooth baffle draft tube, electric stirring device is arranged in the top of reactor, stirring paddle is inserted into the inside of sawtooth baffle draft tube, located in the central position of reactor and sawtooth baffle draft tube, is connected with spiral shear dispersion type micro-nano bubble generation unit.

[0007] Further, the gas-liquid-solid three-phase reactor shell includes a reactor outer shell, a gas-liquid mixture inlet, a solid material inlet, a liquid auxiliary material inlet, a solid material discharge port, a solution overflow port, an exhaust port, and an instrument detection port.

[0008] Further, the solid material collection unit includes a sedimentation inclined plate and a conical bottom of the shell bottom.

[0009] Further, the spiral shear dispersion type micro-nano bubble generation unit includes a gas-liquid-solid homogeneous phase net and a spiral shear dispersion paddle. The spiral shear dispersion paddle is located at the upper portion of the gas-liquid-solid homogeneous phase net and is composed of one or more layers. When composed of multiple layers, the spiral shear dispersion paddles are rotationally distributed. The rotation angle of each layer is between 5-30 degrees, and the rotation direction is opposite to the flow direction of the material liquid.

[0010] Further, the sawtooth baffle draft tube includes a circular draft barrel, a sawtooth baffle, and a draft barrel overflow port. The sawtooth baffles are evenly distributed along the inner wall of the draft barrel in 2-5 rows.

[0011] Further, the electric stirring device includes a motor, a speed reducer, and a stirring paddle. The paddle blade form is any one of an inclined paddle, a propeller, or a turbine. The stirring liquid flow direction is upward.

[0012] Further, the gas-liquid mixture inlet and the liquid auxiliary material inlet enter the sawtooth baffle draft tube from the lower end in a tangential direction.

[0013] Further, the spiral shear dispersion paddle has a paddle blade fixed on the rotating shaft of the stirring paddle. The horizontal angle is between 10-90 degrees. The paddle blade form is any one of a turbine, a paddle, or a propeller or a combination thereof.

[0014] The gas-liquid-solid three-phase reactor for generating micro-nano bubbles provided by the utility model can achieve the following beneficial effects:

[0015] (1) High-efficiency gas-liquid-solid mixing efficiency:

[0016] Compared with the prior art, the device can realize uniform dispersion and efficient dissolution of the gas, significantly increase the contact area of the gas with the liquid and the solid, and greatly improve the dissolution efficiency of the gas, the reaction speed and the stability of the reaction process.

[0017] (2) Optimized gas-liquid-solid contact conditions:

[0018] The micro-nano bubbles not only have a large specific surface area, but also can be suspended in the liquid for a long time, increasing the contact time between the gas and the liquid and the solid, thereby greatly improving the mass transfer efficiency between the substances. Deep interaction between the bubbles and the liquid and the solid is realized, which greatly enhances the reaction effect, improves the reaction speed, shortens the reaction time and plays an important role in specific reactions.

[0019] (3) High-efficiency modular design:

[0020] 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, simplifying the daily maintenance process. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in 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 the 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 their drawings can be obtained according to the drawings shown in the embodiments without creative labor.

[0022] Figure 1 The basic structure diagram of the present application.

[0023] Explanation of reference numerals in the drawings:

[0024] 1, reactor shell, 2, gas-liquid mixture inlet, 3, solid material inlet, 4, liquid auxiliary material inlet, 5, solid material discharge port, 6, solution overflow port, 7, exhaust port, 8, instrument detection port, 9, settling inclined plate, 10, shell bottom cone bottom structure, 11, gas-liquid-solid homogeneous phase net, 12, spiral shear dispersion paddle, 13, circular flow guide barrel, 14, sawtooth baffle, 15, motor, 16, speed reducer, 17, stirring paddle, 18, flow guide barrel overflow port DETAILED DESCRIPTION

[0025] The technical solutions of the embodiments of the utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the range protected by the utility model.

[0026] Embodiment 1

[0027] The gas-liquid-solid three-phase reactor for generating micro-nano bubbles is used for treating high-concentration resin production waste liquid.

[0028] In the embodiment, the equipment parameters are as follows: the reactor height is 4.0 meters, the reactor diameter is 1.2 meters, the circular flow guide bucket height is 3.0 meters, the diameter is 0.6 meters, there are 4 rows of sawtooth baffles inside, the baffle height is 1.5 meters, the spiral shear dispersion paddle adopts 12-leaf open vortex paddle, the paddle horizontal angle is 45 degrees, the paddle layer number is 9, the paddle length is 0.25 meters, the paddle width is 0.06 meters, each layer of paddle is installed by rotating 10 degrees, the horizontal angle of the inclined plate and the conical bottom is 60 degrees, a total of 3 layers of settlement inclined plates are arranged, the stirring power is 5.5 KW, the stirring paddle form is propelling type, and the rotating speed is 250-350 revolutions. The equipment material is titanium.

[0029] In the embodiment, the ozone gas and the high-concentration resin production waste liquid are formed into gas-liquid mixture materials by a gas-liquid mixing pump or a jet device, then enter the sawtooth baffle flow guide cylinder of the gas-liquid-solid three-phase reactor from the gas-liquid mixture material inlet, the coagulant and the flocculant solution enter the sawtooth baffle flow guide cylinder of the gas-liquid-solid three-phase reactor from the liquid auxiliary material inlet, and the lime slurry enters the sawtooth baffle flow guide cylinder of the gas-liquid-solid three-phase reactor through the solid material containing inlet. The ozone gas is cut into micro-nano bubbles in a high-efficient manner. The micro-nano ozone bubbles have a great specific surface area and a high dissolution efficiency, and the oxidation efficiency is much higher than that of traditional aeration. The ozone bubbles can also react with water molecules to generate free radicals (mainly hydroxyl radicals ·OH) with a very strong oxidation ability, so that most of the organic matters in the wastewater can be completely mineralized or decomposed. The organic matters in the wastewater are oxidized and decomposed to produce inorganic salts, water and waste gas. The solid particles and the decomposition products in the waste liquid react with the lime slurry, the coagulant and the flocculant in the sawtooth baffle flow guide cylinder to form a large amount of precipitates. The precipitates overflow from the overflow port of the flow guide cylinder and enter the solid material collecting unit. After rapid settlement of the precipitates on the conical bottom, the settled liquid overflows from the solution overflow port. The organic matters and the solid particles in the treated high-concentration resin production waste liquid are greatly reduced. The gas-liquid-solid three-phase reactor can significantly improve the diffusion, mass transfer and reaction efficiency of the gas, the liquid and the solid, and realize the advanced oxidation reaction, so that the treatment efficiency of the high-concentration organic wastewater is greatly improved.

[0030] Embodiment 2

[0031] Micro-nano bubble generating gas-liquid-solid three-phase reactor for efficient dissolution of waste copper powder.

[0032] The equipment parameters in the embodiment are as follows: the reactor height is 4.5 meters, the reactor diameter is 1.5 meters, the circular flow guide barrel height is 3.5 meters, the diameter is 0.8 meters, 3 rows of sawtooth baffles are arranged in the barrel, the baffle height is 1.6 meters, the spiral shear dispersion paddle adopts 6-leaf open turbine paddle, the paddle horizontal angle is 45 degrees, the paddle layer number is 12, the paddle length is 0.35 meters, the paddle width is 0.06 meters, each layer of paddle is installed by rotating 15 degrees, the horizontal angle of the inclined plate and the conical bottom is 60 degrees, 4 layers of settlement inclined plates are arranged, the stirring power is 7.5 KW, the stirring paddle form is a propelling type, and the rotating speed is 150-250 revolutions. The equipment material is 904L super austenitic stainless steel.

[0033] In the embodiment, air or oxygen and 50-60 degree hot water form a gas-liquid mixture through a gas-liquid mixing pump or a jet device, the gas-liquid mixture enters a sawtooth baffle flow guide cylinder of a gas-liquid-solid three-phase reactor from a gas-liquid mixture inlet, concentrated sulfuric acid enters the sawtooth baffle flow guide cylinder of the gas-liquid-solid three-phase reactor from a liquid auxiliary material inlet, and waste copper powder ore pulp enters the sawtooth baffle flow guide cylinder of the gas-liquid-solid three-phase reactor from a solid material inlet, oxygen in the air is efficiently cut into micro-nano bubbles to form oxygen-rich gas dissolved water, part of the oxygen reacts with water molecules to generate free radicals with extremely strong oxidation ability (mainly hydroxyl radicals ·OH, which can oxidize copper and rapidly react with sulfuric acid), under the strong oxidizing atmosphere, copper, oxygen and sulfuric acid undergo an oxidation-reduction reaction to produce copper sulfate solution and water (Cu+1 / 2O2+H2SO4=CuSO4+H2O), the remaining undissolved substances overflow from the overflow port of the flow guide cylinder and enter a solid material collecting unit, after rapid settlement through the inclined plate, the copper leaching residue is formed at the conical bottom position, and the settled copper sulfate solution overflows from the overflow port. Compared with the traditional copper dissolving equipment, the copper dissolving speed is slow and the efficiency is low, and the gas-liquid-solid three-phase reactor can significantly improve the copper dissolving efficiency.

[0034] The various embodiments provided by the utility model can be combined in any manner as required, and the technical solutions obtained by such combination are also within the scope of the utility model.

[0035] 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 their equivalent technologies, the utility model also includes these modifications and variations.

Claims

1. A gas-liquid-solid three-phase reactor for generating micro-nano bubbles, characterized in that, The gas-liquid-solid three-phase reactor shell includes a solid material collecting unit arranged at the bottom of the reactor and on the circumference of the shell to form an annular included angle with the reactor, a spiral shear dispersion type micro-nano bubble generating unit arranged at the lower part of the reactor and the sawtooth baffle draft tube and located at the center of the reactor and the sawtooth baffle draft tube, and an electric stirring device arranged at the top of the reactor, with the stirring paddle extending into the interior of the sawtooth baffle draft tube and located at the center of the reactor and the sawtooth baffle draft tube and connected with the spiral shear dispersion type micro-nano bubble generating unit. 2.The gas-liquid-solid three-phase reactor for generating micro-nano bubbles according to claim 1, characterized in that, The gas-liquid-solid three-phase reactor shell includes a reactor outer shell (1), a gas-liquid mixture inlet (2), a solid material inlet (3), a liquid auxiliary material inlet (4), a solid material discharge port (5), a solution overflow port (6), an exhaust port (7), and an instrument detection port (8). 3.The gas-liquid-solid three-phase reactor for generating micro-nano bubbles according to claim 1, characterized in that, The solid material collecting unit includes a sedimentation inclined plate (9) and a conical bottom (10) at the bottom of the shell. 4.The gas-liquid-solid three-phase reactor for generating micro-nano bubbles according to claim 1, characterized in that, The spiral shear dispersion type micro-nano bubble generating unit includes a gas-liquid-solid homogeneous phase net (11) and a spiral shear dispersion paddle (12), with the spiral shear dispersion paddle (12) located at the upper part of the gas-liquid-solid homogeneous phase net (11) and composed of one or more layers, and the spiral shear dispersion paddle (12) being rotationally distributed when composed of multiple layers, with the rotation angle of each layer being between 5-30 degrees and the rotation direction being opposite to the direction of the flow of the material liquid. 5.The gas-liquid-solid three-phase reactor for generating micro-nano bubbles according to claim 1, wherein, The sawtooth baffle draft tube includes a circular draft barrel (13), a sawtooth baffle (14), and a draft barrel overflow port (18), with the sawtooth baffles being evenly distributed along the inner wall of the draft barrel in 2-5 rows. 6.The gas-liquid-solid three-phase reactor for generating micro-nano bubbles according to claim 1, wherein, The electric stirring device includes a motor (15), a speed reducer (16), and a stirring paddle (17), with the paddle blade being in any one of an inclined paddle type, a propelling type, and a turbine type, and the stirring liquid flow direction being upward.

7. The gas-liquid-solid three-phase reactor for generating micro-nano bubbles according to claim 2, characterized in that, The gas-liquid mixture inlet (2) and the liquid auxiliary material inlet (4) enter the sawtooth baffle draft tube in a tangential direction from the lower part. 8.The gas-liquid-solid three-phase reactor for generating micro-nano bubbles according to claim 4, characterized in that, The spiral shear dispersion paddle (12) is fixed on the rotating shaft of the stirring paddle (17), with the horizontal angle being between 10-90 degrees, and the paddle blade being in any one or combination of a turbine type, a paddle type, and a propelling type.

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