A gas lift liquid collection stirring reactor

Abstract

The invention relates to the technical field of material stirring, and provides a gas-lift liquid-collecting stirring reactor, comprising: a tank body, a gas distributor and a stirring component, wherein the stirring component comprises a stirring shaft, a material stirring structure and a suspension collecting structure, the material stirring structure is located at the lower part of the stirring shaft and is used to stir and mix the material; the suspension collecting structure comprises a liquid collecting stirring structure and a liquid collecting cylinder, dispersed gas is introduced into the bottom of the tank body, a suspension collecting structure is arranged above the reaction raw material liquid level, a material stirring structure is arranged below the reaction raw material liquid level, an intermediate liquid collecting cylinder and a liquid collecting stirring structure are arranged at the upper part for collecting droplets, and the gas rising stirring is coordinated with the stirring of the material stirring structure in the liquid to realize dual stirring of gas stirring and mechanical stirring of the material stirring structure, thereby improving the material mixing efficiency and accelerating the reaction rate, and the intermediate liquid collecting cylinder and the liquid collecting stirring structure are arranged above the liquid level for collecting droplets, thereby further improving the reaction rate of the material and improving the material utilization rate.

Description

Technical Field

[0001] The invention relates to the technical field of material stirring, in particular to an airlift liquid collection stirring reactor. Background Art

[0002] A stirred reactor is a common equipment in the fields of biopharmaceuticals, food processing, and chemical production. There are usually several types, such as mechanical stirring type and bubbling type. The application fields are different and the forms are also different. The mechanical material stirring structure of the existing mechanical stirring reactor is diverse, but there are still problems such as uneven stirring and low stirring efficiency; there is a stirring reaction equipment with gas introduction, which stirs the solution by passing gas, but due to problems such as gas dispersion and gas carrying materials, it leads to uneven liquid mixing, uneven temperature heating, low material mixing efficiency, and large material loss. Therefore, the efficiency of preparing raw materials by existing processes is usually not high, and it is very easy to produce material waste, resulting in increased costs. Therefore, the present invention proposes a gas-lift liquid collection stirred reactor. While preparing the raw material, it takes into account the full use of the preparation process, and makes the biological fermentation, raw material synthesis reaction and other reactions repeatedly to achieve the purpose of improving production efficiency. Summary of the invention

[0003] The object of the present invention is to provide an airlift liquid collection stirring reactor to solve the technical problems of large material loss and low production efficiency of existing stirring devices.

[0004] The embodiment of the present invention provides a gas-lift liquid-collecting stirred reactor, comprising:

[0005] A tank body, wherein a side wall of the tank body is provided with a feed inlet, and the feed inlet is used to add reaction raw materials;

[0006] A gas distributor, located at the bottom of the tank, is used to introduce dispersed gas into the reaction raw materials in the tank to accelerate the mixing of the reaction raw materials;

[0007] A stirring assembly is arranged at the center of the tank body, and the stirring assembly includes a stirring shaft, a material stirring structure and a suspension collecting structure. The material stirring structure is located at the lower part of the stirring shaft and is used to stir and mix the material; the suspension collecting structure is located at the upper part of the stirring shaft, and the suspension collecting structure includes a liquid collecting stirring structure and a liquid collecting cylinder. The liquid collecting cylinder is located between the liquid collecting stirring structure and the material stirring structure, and is used to collect the suspension captured by the rotation of the liquid collecting stirring structure and reflux it to the bottom of the tank body; wherein the suspension is a dispersed gas mixed with reaction raw materials.

[0008] Optionally, the liquid collecting and stirring structure includes: a plurality of liquid collecting blades evenly distributed around the stirring shaft; the liquid collecting blades are an arc-shaped curved surface structure, and a plurality of hook-shaped grooves arranged at intervals are provided on the inner side of the arc-shaped curved surface structure, the upper end of the hook-shaped groove extends to the top of the arc-shaped curved surface structure, and the lower end of the hook-shaped groove extends to the bottom end of the arc-shaped curved surface structure, and the lower end of the same hook-shaped groove is closer to the stirring shaft than the upper end of the hook-shaped groove, so as to collect the suspension on the upper part of the tank body during rotation.

[0009] Optionally, the hook-shaped groove located at the top of the liquid collecting blade has an inclination angle of 25° to 65° relative to the top of the liquid collecting blade.

[0010] Optionally, the liquid collecting cylinder is an inverted cone-shaped structure with an upper diameter larger than a lower diameter, and a side wall of the liquid collecting cylinder is provided with a plurality of obliquely arranged strip holes along the circumferential direction.

[0011] Optionally, the ratio of the upper diameter to the lower diameter of the liquid collecting cylinder is (1.1~1.3):1; and / or, the angle between the strip hole and the generatrix at the corresponding position of the liquid collecting cylinder is 20°~50°.

[0012] Optionally, the material stirring structure comprises: a first paddle and a second paddle; the first paddle and the second paddle are fixed on the stirring shaft at intervals, and the stirring directions of the first paddle and the second paddle are opposite.

[0013] Optionally, the material stirring structure further includes: a connecting plate; the connecting plate connects the first blade and the second blade at corresponding positions, and the connecting plate is provided with a plurality of vertically arranged oblong holes.

[0014] Optionally, the gas distributor includes an air inlet pipe, a first annular air pipe, a second annular air pipe and a cleaning pipe which are arranged in sequence; the first annular air pipe is located directly below the second annular air pipe, and the two are connected by a one-way valve; the air inlet pipe and the cleaning pipe are both connected to the first annular air pipe, and the second annular air pipe is provided with a plurality of gas injection holes along the circumferential direction.

[0015] Optionally, the one-way valve includes a valve body and two movable pieces; the valve body includes an air inlet portion, a mounting portion and an air outlet portion which are arranged in sequence, and the size of the mounting portion is larger than the size of the air inlet portion and the air outlet portion; the two movable pieces are installed on the mounting portion for sealing the mounting portion in a reset state.

[0016] Optionally, the stirring diameter of the liquid collecting stirring structure is larger than the diameter of the second annular air pipe, and the ratio of the stirring diameter of the liquid collecting stirring structure to the diameter of the second annular air pipe is (1.2~1.4):1.

[0017] The embodiments of the present invention have at least the following technical effects:

[0018] The gas-lift liquid-collecting stirring reactor provided in the embodiment of the present invention has a structure in which dispersed gas is introduced into the bottom of the tank body, a suspension collection structure is arranged above the reaction raw material liquid level, a material stirring structure is arranged below the reaction raw material liquid level, and an intermediate liquid collecting cylinder and a liquid collecting stirring structure are arranged on the upper part to collect droplets. The gas rising stirring is coordinated with the stirring of the material stirring structure in the liquid to achieve dual stirring of gas stirring and mechanical stirring of the material stirring structure, thereby improving the material mixing efficiency and accelerating the reaction rate. The intermediate liquid collecting cylinder and the liquid collecting stirring structure are arranged above the liquid level to collect droplets, thereby further improving the reaction rate of the material and improving the material utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the overall structure of a gas-lift liquid-collecting stirring reactor provided in an embodiment of the present invention;

[0021] Figure 2 A schematic structural diagram of a stirring assembly of a gas-lift liquid-collecting stirring reactor provided in an embodiment of the present invention;

[0022] Figure 3 A schematic structural diagram of a stirring assembly of a gas-lift liquid-collecting stirring reactor provided by an embodiment of the present invention from another angle;

[0023] Figure 4 The embodiment of the present invention provides Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0024] Figure 5 The embodiment of the present invention provides Figure 4 The enlarged structure of B in the middle;

[0025] Figure 6 A schematic diagram of the overall structure of a gas distributor of a gas-lift liquid-collecting stirred reactor provided by an embodiment of the present invention;

[0026] Figure 7 The embodiment of the present invention provides Figure 6 The enlarged structure of C in the middle;

[0027] Figure 8A schematic diagram of the structure of a one-way valve of a gas distributor of a gas-lift liquid-collecting stirred reactor provided by an embodiment of the present invention;

[0028] Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the cross-sectional structure of DD.

[0029] Reference numerals:

[0030] 100-tank body; 110-discharging port; 120-bottom support frame; 130-feeding port; 140-driving mechanism;

[0031] 200-gas distributor; 210-air inlet pipe; 220-cleaning pipe; 230-first annular air pipe; 240-second annular air pipe; 240a-gas injection hole; 250-check valve; 251-valve body; 251a-air inlet part; 251b-installation part; 251c-air outlet part; 252-movable sheet;

[0032] 300-stirring assembly; 310-material stirring structure; 311-first blade; 312-second blade; 313-connecting plate; 313a-long round hole; 320-suspension collecting structure; 321-liquid collecting stirring structure; 321a-liquid collecting blade; 3221-hook-shaped groove; 322-liquid collecting cylinder; 322a-strip hole; 330-stirring shaft;

[0033] 400-Steam Jacket. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0036] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0037] See also Figures 1 to 9 As shown, an embodiment of the present invention provides a gas-lift liquid-collecting stirring reactor, comprising: a tank body 100, a gas distributor 200 and a stirring assembly 300. Among them, the side wall of the tank body 100 is provided with a feed port 130, and the feed port 130 is used to add reaction raw materials. The bottom of the tank body 100 is provided with a discharge port 110 for discharging materials after the reaction is completed. The gas distributor 200 is located at the bottom of the tank body 100, and is used to pass a dispersed gas into the reaction raw materials located in the tank body 100 to accelerate the mixing of the reaction raw materials.

[0038] Specifically, the stirring assembly 300 is vertically arranged at the center of the tank body 100, and the stirring assembly 300 includes a stirring shaft 330, a material stirring structure 310 and a suspension collecting structure 320. The material stirring structure 310 is located at the lower part of the stirring shaft 330, and is used to stir and mix the material. The upper end of the stirring shaft 330 is connected to the driving mechanism 140, and the lower end of the stirring shaft 330 is rotatably connected to the bottom support frame 120.

[0039] Furthermore, the suspension collection structure 320 is located at the upper part of the stirring shaft 330, and the suspension collection structure 320 includes a liquid collection stirring structure 321 and a liquid collection barrel 322. The liquid collection stirring structure 321 is installed on the stirring shaft 330, and rotates synchronously with the stirring shaft, thereby capturing the rising suspension during the rotation. The liquid collection barrel 322 is located between the liquid collection stirring structure 321 and the material stirring structure 310, and is fixed to the stirring shaft through a connecting piece. It is mainly used to collect the suspension captured by the rotation of the liquid collection stirring structure 321 and reflux it to the bottom of the tank body 100. Among them, the suspension is a dispersed gas mixed with reaction raw materials, that is, the dispersed gas enters the reaction raw materials and takes out part of the reaction raw materials to form a suspension at the upper part of the tank body 100. If this part of the suspension does not participate in the reaction, it will cause material waste.

[0040] The gas-lift liquid-collecting stirring reactor provided in the embodiment of the present invention introduces dispersed gas at the bottom of the tank body 100, and a suspension collection structure 320 is arranged above the reaction raw material liquid level, a material stirring structure 310 is arranged below the reaction raw material liquid level, and an intermediate liquid collecting cylinder 322 and a liquid collecting stirring structure are arranged on the upper part to collect droplets. The gas rising stirring is coordinated with the stirring of the material stirring structure in the liquid to achieve dual stirring of gas stirring and mechanical stirring of the material stirring structure 310, thereby improving the material mixing efficiency and accelerating the reaction rate. Above the liquid level, an intermediate liquid collecting cylinder 322 and a liquid collecting stirring structure 321 are arranged on the upper part to collect droplets, thereby further improving the reaction rate of the material and improving the utilization rate of the material.

[0041] In some embodiments, Figures 2 to 4 As shown, the liquid collecting and stirring structure 321 includes: a plurality of liquid collecting blades 321 a uniformly distributed around the stirring shaft 330 .

[0042] Specifically, the liquid collecting blade 321a is an arc-shaped curved surface structure, and a plurality of hook-shaped grooves 3221 arranged at intervals are provided on the inner side of the arc-shaped curved surface structure. The upper end of the hook-shaped groove 3221 extends to the top of the arc-shaped curved surface structure, and the lower end of the hook-shaped groove 3221 extends to the bottom of the arc-shaped curved surface structure. The lower end of the same hook-shaped groove 3221 is closer to the stirring shaft 330 than the upper end of the hook-shaped groove 3221, so as to collect the suspension on the upper part of the tank body 100 during rotation.

[0043] In this embodiment, the liquid collecting and stirring structure 321 will generate a downward flow field during the rotation process, and press the liquid-containing water vapor downward. Since there are still a large number of droplets suspended in the reaction chamber at the lower part of the liquid collecting and stirring structure 321 on the liquid surface of the entire reactor and cannot be deposited in the lower part of the reactor for reaction, the small droplets are collected into the liquid collecting barrel 322 through the liquid collecting and stirring structure 321. The liquid collecting and stirring structure 321 is provided with a hook-shaped groove 3221, which is conducive to collecting liquid and allowing the droplets to gather downward; during the rotation of the blades, the droplets suspended in the reactor can be captured, thereby generating large bubbles, which is conducive to the downward transportation of the droplets to the liquid collecting barrel 322.

[0044] Alternatively, if Figure 5 As shown, the hook-shaped groove 3221 at the top of the liquid collecting blade 321a has an inclination angle θ of 25° to 65° relative to the top of the liquid collecting blade 321a, which is more conducive to the collection of the suspension. It can be understood that if the inclination angle θ is too small, it is not conducive to the flow of the suspension; and if the inclination angle θ is too large, the number of hook-shaped grooves 3221 that can be arranged on the liquid collecting blade 321a of the same area is limited, which is also not conducive to the collection of the suspension.

[0045] In some embodiments, the liquid collecting cylinder 322 is an inverted cone-shaped structure with an upper diameter larger than a lower diameter, which is beneficial for increasing the speed at which the converged liquid is transported downward back to the lower liquid and improving the mixing efficiency with the lower liquid.

[0046] like Figures 3 to 5 As shown, the side wall of the liquid collecting barrel 322 is provided with a plurality of inclined strip holes 322a along the circumferential direction, and during the rotation process, the gas can enter the liquid collecting barrel 322 along the tangential direction, and the gas enters the liquid collecting barrel 322 to generate a vortex, and the collected liquid can be collected by allowing the gas to enter without throwing the droplets out of the barrel (the inclination of the strip holes 322a can make it difficult for the internal liquid to be thrown out of the barrel through the holes), thereby achieving the purpose of collection, and the vortex generated by the gas entering and the collected liquid are fully stirred and mixed, which helps to recover the culture liquid containing the bacteria above the liquid surface and the gas for secondary reaction, thereby improving the reaction efficiency; the lower part of the liquid collecting barrel 322 is hollowed out, and the material can be returned to the liquid in the lower part of the reactor.

[0047] Optionally, the ratio of the upper diameter to the lower diameter of the liquid collecting cylinder 322 is (1.1-1.3):1, which is more conducive to increasing the speed of transporting the converged liquid back to the bottom liquid of the tank body 100, thereby improving the mixing efficiency with the lower liquid.

[0048] Alternatively, if Figure 2 and Figure 3 As shown, the included angle between the strip hole 322a and the generatrix at the corresponding position of the liquid collecting cylinder 322 is 20° to 50°, which is more conducive to the entry of gas and can also better prevent the droplets from being thrown out. Among them, since the liquid collecting cylinder 322 is an inverted cone-shaped structure, the generatrix at the corresponding position of the liquid collecting cylinder 322 refers to the straight line extending from the top to the bottom along the side wall of the liquid collecting cylinder without deviation ( Figure 2 The dotted line on the side wall of the liquid collecting cylinder 322).

[0049] In some embodiments, continue to refer to Figure 2 and Figure 3 The material stirring structure 310 includes: a first blade 311 and a second blade 312. The first blade 311 is located above the second blade 312, and the two are fixed on the stirring shaft 330 at intervals. The first blade 311 and the second blade 312 have opposite stirring directions. By setting two layers of opposite blades, it is beneficial for the liquid to flow up and down, so as to be fully mixed with the introduced gas.

[0050] Optionally, the material stirring structure 310 also includes: a connecting plate 313; the connecting plate 313 connects the first blade 311 and the second blade 312 at the corresponding position, which is beneficial to increase the stirring area; at the same time, considering that the flow field has a low center speed and a high edge speed, which may easily lead to insufficient material reaction, a plurality of vertically arranged oblong holes 313a are provided on the connecting plate 313, which increases the speed at the center of the flow field, so that the lower layer of liquid and gas can generate turbulence and fully mix and react during stirring.

[0051] It is understandable that the gas distributor 200 placed in the fluid medium is often dismantled and cleaned after use. While increasing the workload, frequent disassembly may also cause damage to the device. Moreover, if the gas distributor 200 is placed in the liquid for a long time, liquid droplets may flow back and enter the gas generating device. Therefore, the embodiment of the present invention provides a double-layer distributed gas pipe structure.

[0052] In some embodiments, Figure 1 , Figure 6 and Figure 7 As shown, the gas distributor 200 includes an air inlet pipe 210, a first annular air pipe 230, a second annular air pipe 240 and a cleaning pipe 220 which are arranged in sequence. The first annular air pipe 230 and the second annular air pipe 240 form a double-layer pipeline, and the first annular air pipe 230 is located directly below the second annular air pipe 240, and the two are connected by a one-way valve 250.

[0053] The air inlet pipe 210 and the cleaning pipe 220 are both connected to the first annular air pipe 230 . The second annular air pipe 240 is provided with a plurality of air injection holes 240 a along the circumferential direction. The air injection holes 240 a face the material stirring structure 310 upward.

[0054] Optionally, the plurality of gas injection holes 240a may be arranged in a circular array along the circumference of the second annular air pipe 240. The plurality of gas injection holes 240a are not limited to being arranged in a single circular array, but may also be a collection of circular arrays of different sizes. Optionally, the diameter of the gas injection holes 240a is 2 mm to 4 mm.

[0055] In some embodiments, Figure 6 , Figure 8 and Fig. 9 As shown, the one-way valve 250 includes a valve body 251 and two movable plates 252; the valve body 251 includes an air inlet portion 251a, a mounting portion 251b and an air outlet portion 251c arranged in sequence, and the size of the mounting portion 251b is larger than the size of the air inlet portion 251a and the air outlet portion 251c.

[0056] The two movable pieces 252 are installed on the mounting portion 251b, and are used to seal the mounting portion 251b in the reset state, that is, in the initial state, the one-way valve 250 is sealed by the two movable pieces 252. When the gas enters the one-way valve 250 from the bottom, in order for the gas to be ejected from the upper first annular air pipe 230, the intake air pressure must reach a certain pressure value. At this time, the gas enters the one-way valve 250 from the bottom, and the movable piece 252 is pushed open by the gas, like an open flower. When there is no gas generated, the movable piece 252 is naturally closed in the mounting portion 251b due to the influence of gravity.

[0057] Optionally, for this type of one-way valve 250, the inner wall surface of the internal mounting portion 251b needs to have a small roughness to ensure smoothness, and the movable sheet 252 is deburred and chamfered around, and silicone rubber is affixed to the closed edges of the two movable sheets 252 to ensure sealing when stationary, thereby achieving the purpose of preventing liquid backflow.

[0058] It should be noted that even if a one-way valve 250 is provided, it is not possible to completely prevent droplets from seeping in from the gas injection hole 240a. Therefore, by adding an air inlet pipe 210 and a cleaning pipe 220, cleaning gas / liquid can be introduced after the reaction to clean and dry the distributor pipeline, thereby avoiding unnecessary losses caused by disassembly and cleaning.

[0059] In some embodiments, continue to refer to Figure 1 , Figure 3 and Figure 6 The stirring diameter of the liquid collecting stirring structure 321 is larger than the diameter of the second annular air pipe 240, which is more conducive to fully covering the lower rising airflow and facilitating the collection of materials in the upper space, thereby improving the utilization rate of the reaction raw materials. The stirring diameter of the liquid collecting stirring structure 321 is the diameter of the ring formed by connecting one end of the plurality of liquid collecting blades 321a away from the stirring shaft 330.

[0060] Optionally, the ratio of the stirring diameter of the liquid collecting stirring structure 321 to the diameter of the second annular air pipe 240 is (1.2-1.4): 1, which is more conducive to the collection of materials in the upper space and improves the utilization rate of raw materials. Optionally, the liquid collecting cylinder 322 is made of a flexible polymer material such as silica gel, which is convenient for reducing damage to the strains during liquid collection and improving the survival rate of the strains.

[0061] Optionally, continue to Figure 1 A steam jacket 400 is disposed on the outer side of the bottom of the tank body 100 for heating the reaction raw materials in the tank body 100 .

[0062] Specifically, when the medium in the reactor needs to be heated during the reaction, it is heated to a certain temperature through the lower steam jacket 400 and stirred, which is beneficial to improving the temperature heating rate and temperature adjustment rate of the system.

[0063] It is understandable that cuprous chloride plays an important role in agriculture, chemical industry, medicine and other industries, for example, it can be used as a food preservative, a catalyst to promote drug synthesis reaction, etc. The method for industrial preparation of cuprous chloride is to pass sulfur dioxide into a mixed solution of copper sulfate and sodium chloride, and obtain a product after dilution with water and drying. For example, when producing cuprous chloride, the above-mentioned gas-lift liquid collection stirring reactor provided in an embodiment of the present invention can be used to produce the product. In the specific preparation process, firstly, appropriate sulfuric acid and copper powder are added to the reactor, heated and boiled to a certain temperature and stirred, so that sulfuric acid and copper powder are fully reacted to obtain a copper sulfate solution, and after adding sodium chloride solution, sulfur dioxide gas is passed into the bottom. After sufficient reaction, a cuprous chloride solution is initially obtained, and then discharged from the discharge port 110 at the bottom of the tank body 100, filtered and concentrated to obtain a high-purity cuprous chloride solution, and then passed through an evaporator to finally obtain the product.

[0064] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific conditions. In the description of this specification, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gaslift liquid collection stirred reactor, characterized in that: include: A tank body, wherein a side wall of the tank body is provided with a feed inlet, and the feed inlet is used to add reaction raw materials; A gas distributor, located at the bottom of the tank, is used to introduce dispersed gas into the reaction raw materials in the tank to accelerate the mixing of the reaction raw materials; A stirring assembly is arranged at the center of the tank body, the stirring assembly includes a stirring shaft, a material stirring structure and a suspension collecting structure, the material stirring structure is located at the lower part of the stirring shaft, and is used to stir and mix the material; the suspension collecting structure is located at the upper part of the stirring shaft, the suspension collecting structure includes a liquid collecting stirring structure and a liquid collecting cylinder, the liquid collecting cylinder is located between the liquid collecting stirring structure and the material stirring structure, and is used to collect the suspension captured by the rotation of the liquid collecting stirring structure and return it to the bottom of the tank body; wherein the suspension is a dispersed gas mixed with reaction raw materials, the suspension collecting structure is located above the liquid level of the reaction raw materials, and the material stirring structure is located below the liquid level of the reaction raw materials; The liquid collecting and stirring structure includes: a plurality of liquid collecting blades evenly distributed around the stirring shaft; the liquid collecting blades are arc-shaped surface structures, and a plurality of hook-shaped grooves arranged at intervals are arranged on the inner side of the arc-shaped surface structure, and the upper end of the hook-shaped groove extends to the top of the arc-shaped surface structure, and the lower end of the hook-shaped groove extends to the bottom of the arc-shaped surface structure, and the lower end of the same hook-shaped groove is closer to the stirring shaft than the upper end of the hook-shaped groove, so as to collect the suspension on the upper part of the tank body during rotation; the liquid collecting cylinder is an inverted cone-shaped structure with an upper diameter larger than a lower diameter, and the side wall of the liquid collecting cylinder is circumferentially provided with a plurality of obliquely arranged strip holes.

2. The gaslift liquid collection stirred reactor according to claim 1, characterized in that: The hook-shaped groove located at the top of the liquid collecting blade has an inclination angle of 25° to 65° relative to the top of the liquid collecting blade.

3. The gaslift liquid collection stirred reactor according to claim 1, characterized in that: The ratio of the upper diameter to the lower diameter of the liquid collecting cylinder is (1.1-1.3):1; And / or, the angle between the strip-shaped hole and the generatrix at the corresponding position of the liquid collecting cylinder is 20°~50°.

4. The gaslift liquid collection stirred reactor according to claim 1, characterized in that: The material stirring structure comprises: a first blade and a second blade; The first blade and the second blade are fixed on the stirring shaft at intervals, and the stirring directions of the first blade and the second blade are opposite.

5. The gaslift liquid collection stirred reactor according to claim 4, characterized in that: The material stirring structure further includes: a connecting plate; The connecting plate connects the first blade and the second blade at corresponding positions, and a plurality of vertically arranged oblong holes are arranged on the connecting plate.

6. The gaslift liquid collection stirred reactor according to claim 1, characterized in that: The gas distributor comprises an air inlet pipe, a first annular air pipe, a second annular air pipe and a cleaning pipe which are arranged in sequence; The first annular air pipe is located directly below the second annular air pipe, and the two are connected via a one-way valve; The air inlet pipe and the cleaning pipe are both connected to the first annular air pipe, and the second annular air pipe is provided with a plurality of air injection holes along the circumferential direction.

7. The gaslift liquid collection stirred reactor according to claim 6, characterized in that: The one-way valve comprises a valve body and two movable plates; the valve body comprises an air inlet portion, a mounting portion and an air outlet portion which are arranged in sequence, and the size of the mounting portion is larger than the size of the air inlet portion and the air outlet portion; The two movable sheets are installed on the installation part and are used to seal the installation part in a reset state.

8. The gaslift liquid collection stirred reactor according to claim 6, characterized in that: The stirring diameter of the liquid collecting stirring structure is larger than the diameter of the second annular air pipe, and the ratio of the stirring diameter of the liquid collecting stirring structure to the diameter of the second annular air pipe is (1.2~1.4):1.

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