Continuous reaction system suitable for particulate matter liquid phase coating

Abstract

The utility model relates to a continuous reaction system suitable for particulate matter liquid phase coating. The continuous reaction system is characterized by comprising a dynamic mixer, a first static mixer, a second static mixer and a reaction kettle, wherein the dynamic mixer is used for mixing high-viscosity materials; the first static mixer is used for turbulence quantitative feeding and mixing; an outlet of the dynamic mixer is connected with the first static mixer, an outlet of the first static mixer is connected with the second static mixer, and an outlet of the second static mixer is connected with the reaction kettle. A dynamic mixer, a static mixer and continuous tank reactor equipment are introduced, and the dynamic mixer with strong shearing force is designed at the foremost end of the reaction and is used for mixing materials at the initial stage, so that high-viscosity materials can be mixed; after the static mixer is designed behind the dynamic mixer, the static mixer is small in shearing force and continuous in mixing process, a film generated on the surface of particles cannot be damaged, the production efficiency is improved, the stability of a product is improved, and meanwhile, the energy consumption is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of chemical technology equipment, specifically relating to a continuous reaction system suitable for liquid phase coating of particulate matter. Background Technology

[0002] Reaction systems are classified into continuous reactors (systems) and non-continuous reactors (systems).

[0003] Continuous reactors (systems) are characterized by good homogeneity, avoiding the separation of intermediates, high mass and heat transfer efficiency, and low energy consumption, which can improve production efficiency. Non-continuous reactors (systems) suffer from uneven mixing of reactants, which prevents the reaction system from reaching the required temperature and pressure, affecting the final reaction effect, resulting in unstable product quality and low yield, and making continuous production impossible.

[0004] For reactants involving liquid-phase coating of particulate matter, the reactors (systems) typically used require high particle dispersion capabilities and good mixing performance to avoid agglomeration and ensure thorough mixing of reactants (coating agents, solvents, etc.) within the reactor, guaranteeing a uniform coating layer. Existing technologies for liquid-phase coating of particulate matter often result in uneven reactant mixing, incomplete reactions, and material buildup, adhesion to walls, and uneven or non-dense coating layers during material flow. This leads to unsatisfactory coating effects and efficiency, and unstable product quality. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a continuous reaction system suitable for liquid phase coating of particulate matter.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a continuous reaction system suitable for liquid phase coating of particulate matter, characterized in that: it includes a dynamic mixer for mixing high-viscosity materials, a first static mixer for turbulent quantitative feeding and mixing, a second static mixer for rapidly mixing materials without applying additional shear force, and a reaction vessel; the outlet of the dynamic mixer is connected to the first static mixer, the outlet of the first static mixer is connected to the second static mixer, and the outlet of the second static mixer is connected to the reaction vessel.

[0007] Furthermore, the dynamic mixer is connected to multiple feed pipes, and each feed pipe is equipped with a regulating valve.

[0008] Furthermore, the first static mixer is a tubular mixer, and a baffle is provided inside the tube of the first static mixer. An "8"-shaped channel is opened in the middle of the baffle. A feeding pipe is provided on the first static mixer tube where the baffle is located, and a flow meter is provided on the feeding pipe.

[0009] Furthermore, the second static mixer is a tubular mixer, and the tube wall of the second static mixer is provided with multiple conical fins, of which four conical fins form a group, which are evenly distributed on the same circumference inside the tube wall of the second static mixer and at different angles.

[0010] Furthermore, the tips of two non-adjacent conical fins in the same group of conical fins face each other, and the liquid inlet direction of the second static mixer forms an inlet angle with the conical fins.

[0011] Furthermore, the inner diameter of the tube of the second static mixer is 2 to 4 times the distance between the tips of two opposite conical fins in the same group; the distance between the conical fins on two adjacent cross sections is 2 to 6 times the length of the conical fins; and the inner diameter of the tube of the second static mixer is 1.5 to 3.5 times the length of the conical fins.

[0012] Furthermore, the inner diameter of the tube of the second static mixer is 2.5 to 3 times the distance between the tips of two opposite conical fins in the same group; the distance between the conical fins on two adjacent cross sections is 2.5 to 4.5 times the length of the conical fins; and the inner diameter of the tube of the second static mixer is 2.0 to 3.0 times the length of the conical fins.

[0013] Furthermore, the angle θ between the centerline of the conical fin and the axis of the second static mixer pipe is 5~20°.

[0014] Furthermore, the angle θ between the centerline of the conical fin and the axis of the second static mixer pipe is 8~12°.

[0015] Furthermore, the reactor is equipped with a stirrer, an inlet at the top, and an outlet at the bottom to ensure complete discharge of materials.

[0016] The beneficial effects of this invention are as follows: It introduces a dynamic mixer, a static mixer, and a continuous batch reactor. The dynamic mixer, with its high shear force, is designed at the forefront of the reaction for initial material mixing, capable of mixing high-viscosity materials. The static mixer, positioned after the dynamic mixer, has low shear force, ensuring continuous mixing without damaging the film formed on the particle surface. It is highly efficient, with very low pressure drop and energy consumption. Being an integral part of the pipeline, it requires minimal mixing distance and installation space, making it suitable for the reaction process. A stirring device is installed in the reactor for mixing liquid-phase reactants. In multi-reactor series operation, materials can flow in and out continuously, allowing for continuous operation and creating a piston flow, ensuring constant reactant concentration and reaction rate. This invention solves problems such as uneven mixing, incomplete reaction, material accumulation, adhesion to walls, and uneven coating thickness during particulate liquid-phase coating reactions, leading to unsatisfactory coating effects and efficiency, and unstable product quality. It improves production efficiency, enhances product stability, reduces energy consumption, and simplifies system design. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the first static mixer of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the second static mixer of this utility model;

[0020] Figure 4 This is a cross-sectional view of the second static mixer of this utility model;

[0021] In the figure: 1-First static mixer, 11-Feed pipe, 12-Baffle, 13-Channel; 2-Second static mixer, 21-Conical fin; 3-Dynamic mixer, 31-Feed pipe; 4-Reaction vessel. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1

[0024] See Figure 1 A continuous reaction system suitable for liquid phase coating of particulate matter, characterized in that: it includes a dynamic mixer 3 for mixing high-viscosity materials, a first static mixer 1 for turbulent quantitative feeding and mixing, a second static mixer 2 for rapidly mixing materials without applying additional shear force, and a reaction vessel 4 for maturing the materials; the outlet of the dynamic mixer 3 is connected to the first static mixer 1, the outlet of the first static mixer 1 is connected to the second static mixer 2, and the outlet of the second static mixer 2 is connected to the reaction vessel 4.

[0025] The dynamic mixer 3 is connected to multiple feed pipes 31, and each feed pipe 31 is equipped with a regulating valve.

[0026] See Figure 2 The first static mixer 1 is a tubular mixer. A baffle 12 is provided inside the tube of the first static mixer 1. An "8"-shaped channel 13 is opened in the middle of the baffle 12. A feeding pipe 11 is provided on the tube of the first static mixer 1 where the baffle 12 is located. A flow meter is provided on the feeding pipe 11.

[0027] See Figure 3-4The second static mixer 2 is a tubular mixer. The tube wall of the second static mixer 2 is provided with multiple conical fins 21, of which four conical fins 21 form a group, which are evenly distributed on the same circumference inside the tube wall of the second static mixer 2 and at different angles.

[0028] In the same group of conical fins 21, the tips of two non-adjacent conical fins 21 are opposite each other, and the liquid inlet direction of the second static mixer 2 forms a liquid inlet angle with the conical fins 21.

[0029] The inner diameter d1 of the tube of the second static mixer 2 is 2.5 to 3 times the distance d2 between the tips of two opposite conical fins 21 in the same group; the distance L2 between two adjacent cross sections of the conical fins 21 is 2.5 to 4.5 times the length L1 of the conical fins 21; the inner diameter d1 of the tube of the second static mixer 2 is 2.0 to 3.0 times the length L1 of the conical fins 21.

[0030] The angle θ between the centerline of the conical fin 21 and the axis of the pipe of the second static mixer 2 is 8~12°.

[0031] The reactor 4 is equipped with a stirrer, and has an inlet at the top and an outlet at the bottom to ensure complete discharge of materials.

Claims

1. A continuous reaction system suitable for liquid phase coating of particulate matter, characterized in that: The device comprises a dynamic mixer (3) for mixing high-viscosity materials, a first static mixer (1) for turbulent quantitative feeding and mixing, a second static mixer (2) for mixing materials without applying additional shearing force and quickly, and a reaction kettle (4); the outlet of the dynamic mixer (3) is connected with the first static mixer (1), the outlet of the first static mixer (1) is connected with the second static mixer (2), and the outlet of the second static mixer (2) is connected with the reaction kettle (4).

2. A continuous reaction system suitable for liquid phase coating of particulate material according to claim 1, characterised in that: A plurality of feeding pipes (31) are connected with the dynamic mixer (3), and an adjusting valve is arranged on the feeding pipe (31).

3. A continuous reaction system suitable for liquid phase coating of particulate matter as claimed in claim 1, wherein: The first static mixer (1) is a tubular mixer, a baffle (12) is arranged in the tubular mixer, an "8" shaped channel (13) is arranged in the middle of the baffle (12), a feeding pipe (11) is arranged on the tubular mixer of the first static mixer (1) where the baffle (12) is arranged, and a flowmeter is arranged on the feeding pipe (11).

4. A continuous reaction system suitable for liquid phase coating of particulate matter as claimed in claim 1, wherein: The second static mixer (2) is a tubular mixer, a plurality of tapered fins (21) are arranged on the wall of the tubular mixer, four tapered fins (21) in a group are uniformly distributed on the same circumference of the wall of the tubular mixer and have different angles.

5. A continuous reaction system suitable for liquid phase coating of particulate material as claimed in claim 4, characterised in that: The tips of two non-adjacent tapered fins (21) in the same group of tapered fins (21) are opposite to each other, and the inlet direction of the second static mixer (2) forms an inlet angle with the tapered fins (21).

6. A continuous reaction system suitable for liquid phase coating of particulate matter as claimed in claim 4, wherein: The inner diameter (d1) of the tubular mixer of the second static mixer (2) is 2-4 times the tip spacing (d2) of the two opposite tapered fins (21) in the same group, the spacing (L2) of the tapered fins (21) on two adjacent cross sections is 2-6 times the length (L1) of the tapered fins (21), and the inner diameter (d1) of the tubular mixer of the second static mixer (2) is 1.5-3.5 times the length (L1) of the tapered fins (21).

7. A continuous reaction system suitable for liquid phase coating of particulate material as claimed in claim 6, characterised in that: The inner diameter (d1) of the tubular mixer of the second static mixer (2) is 2.5-3 times the tip spacing (d2) of the two opposite tapered fins (21) in the same group, the spacing (L2) of the tapered fins (21) on two adjacent cross sections is 2.5-4.5 times the length (L1) of the tapered fins (21), and the inner diameter (d1) of the tubular mixer of the second static mixer (2) is 2.0-3.0 times the length (L1) of the tapered fins (21).

8. A continuous reaction system suitable for liquid phase coating of particulate material as claimed in claim 4, wherein: The angle θ between the center line of the tapered fin (21) and the axis of the tubular mixer of the second static mixer (2) is 5-20°.

9. A continuous reaction system suitable for liquid phase coating of particulate material as claimed in claim 8, characterised in that: The angle θ between the center line of the tapered fin (21) and the axis of the tubular mixer of the second static mixer (2) is 8-12°.

10. A continuous reaction system suitable for liquid phase coating of particulate material as claimed in claim 1, wherein: The reaction kettle (4) is provided with a stirrer, an inlet is arranged on the upper end of the reaction kettle (4), and an outlet is arranged on the bottom end of the reaction kettle (4) to completely discharge the materials.

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