Static mixer

Abstract

The utility model discloses a static mixer, which relates to the field of mixing pipelines and comprises an outer pipe, connecting flanges are integrally formed at two ends of the periphery of the outer pipe, mounting mechanisms are arranged in the outer pipe, a plurality of spiral blades are arranged between the mounting mechanisms, the spiral blades are connected with the mounting mechanisms through butt joint mechanisms, and the butt joint mechanisms are connected with the outer pipe. The ends, making contact with each other, of the two spiral blades make contact in a crossed mode, and one connecting flange is connected with one part of the mounting mechanism through a positioning mechanism. By arranging the mounting mechanism, the positioning mechanism and the butt joint mechanism, the screw blade can be fixed without bolts, and the screw blade is more convenient to mount and dismount, so that the replacement efficiency of the screw blade is improved, and the stability of the mounted screw blade is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mixing pipelines, specifically a static mixer. Background Technology

[0002] A static mixer is a mixer with multiple spiral blades inside. When the raw material fluid passes through the spiral blades, it is continuously cut and then mixed again. This process is repeated multiple times to achieve mixing without external force.

[0003] In the existing technology, during long-term use of the spiral blade, particles carried by the fluid will continuously impact the surface of the spiral blade, causing excessive wear on the surface of the spiral blade. When this happens, the spiral blade needs to be replaced. In the existing technology, the spiral blade is usually fixed by welding or bolting. The bolting method is not efficient enough when replacing the blade. Utility Model Content

[0004] The purpose of this invention is to provide a static mixer in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a static mixer, including an outer tube, both ends of which are integrally formed with connecting flanges, an installation mechanism is provided inside the outer tube, multiple helical blades are arranged between the installation mechanisms, the helical blades are connected to the installation mechanisms through a docking mechanism, two helical blades are in contact at one end in a cross-shaped contact, and one of the connecting flanges is connected to a part of the installation mechanism through a positioning mechanism.

[0006] As a further embodiment of this utility model: the installation mechanism includes a plug ring inserted into one end of the inner wall of the outer tube, and a perforated baffle is fixedly installed at one end of the plug ring near the inner wall of the spiral blade and the other end of the inner wall of the outer tube.

[0007] As a further embodiment of this utility model: the positioning mechanism includes a connector integrally formed on the end of the insertion ring away from the porous baffle, one end of the outer tube is provided with a mating groove for accommodating the connector, the connector is provided with circumferentially spaced circular holes, and one end of the inner wall of the connector is integrally formed with an outwardly protruding positioning post, which is inserted into the inner wall of the circular hole.

[0008] As a further embodiment of this utility model: the docking mechanism includes a plug-in groove opened along the vertical stop bar of the porous baffle, and the two spiral blades located at both ends are integrally formed with a plug-in block that docks with the plug-in groove at one end.

[0009] As a further embodiment of this utility model: two slots are formed on the end face of the connector away from the insertion ring, and a retaining ring is mated to the inner wall of the slot. A sealing ring is integrally formed on the side of the retaining ring away from the connector. The sealing ring is used to seal the positioning post and the mating position of the connector and the mating slot. The inner diameter of the sealing ring is equal to the inner diameter of the connector.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. By setting up an installation mechanism, a positioning mechanism, and a docking mechanism, boltless fixing of the helical blades can be achieved, making installation and disassembly more convenient, thereby improving the efficiency of helical blade replacement and ensuring the stability of the helical blades after installation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0014] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;

[0015] Figure 4 This is a schematic diagram of the installation of the sealing ring of this utility model;

[0016] Figure 5 This is a schematic diagram of the docking mechanism of this utility model.

[0017] In the diagram: 1. Outer pipe; 2. Connecting flange; 3. Insert ring; 4. Spiral blade; 5. Perforated baffle; 6. Sealing ring; 7. Butt groove; 8. Butt joint; 9. Slot; 10. Positioning post; 11. Insert groove; 12. Insert block; 13. Snap ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5In this embodiment of the utility model, a static mixer includes an outer tube 1. Both ends of the outer tube 1 are integrally formed with connecting flanges 2. An installation mechanism is provided inside the outer tube 1. Multiple spiral blades 4 are provided between the installation mechanisms. The spiral blades 4 are connected to the installation mechanisms through a docking mechanism. Two spiral blades 4 are in contact at one end in a cross-shaped contact. A connecting flange 2 is connected to a part of the installation mechanism through a positioning mechanism.

[0020] In this embodiment: In the synthesis reaction of 2,3-dichloro-5-trifluoromethylpyridine, the liquid raw material enters the outer tube 1 through a pipe and comes into contact with multiple helical blades 4. During this process, the raw material fluid is cut and saturated, and goes through multiple rounds to achieve thorough mixing. This ensures that the halogenating reagent and the arsenic-based substrate are fully mixed, promoting the halogenation reaction and avoiding side reactions such as over-chlorination or incomplete fluorination caused by uneven mixing. At the same time, the raw material fluid continuously enters the outer tube 1 through the pipe for continuous mixing, achieving the goal of continuous production.

[0021] The outer pipe 1 is connected to the pipeline through the connecting flange 2. A sealing ring is installed at the flange joint between the connecting flange 2 and the flange at the end of the outer pipe 1 to ensure the sealing of the raw material fluid during the flow process.

[0022] After prolonged use, the spiral blade 4 will experience excessive wear due to the impact of particles in the raw material fluid. Therefore, the spiral blade 4 needs to be replaced. This is done by closing the pipeline valve and draining the raw material fluid, then separating the outer tube 1 from the pipeline. The installation mechanism is then pulled out from the inner wall of the outer tube 1, thus removing the limiting position on one end of the spiral blade 4, allowing it to be pulled out and disassembled. A new spiral blade 4 is then inserted into the outer tube 1, and one end of the spiral blade 4 is fixedly connected to the inner wall of the outer tube 1. A multi-hole baffle 5 is inserted through a docking mechanism, followed by the insertion ring 3, which is then inserted into the other end of the spiral blade 4 through the docking mechanism. This completes the position limitation of the new spiral blade 4. The outer tube 1 is then reconnected to the pipeline, where one end of the pipeline effectively abuts the installation mechanism, achieving the goal of bolt-free restriction.

[0023] Please refer to this carefully. Figure 2 and Figure 3 The installation mechanism includes a plug ring 3 inserted into one end of the inner wall of the outer tube 1. A perforated baffle 5 is fixedly installed at one end of the plug ring 3 near the inner wall of the spiral blade 4 and at the other end of the inner wall of the outer tube 1.

[0024] In this embodiment: when the worn spiral blade 4 is removed, the positioning mechanism is pulled outward, and the positioning mechanism drives the insertion ring 3 to move outward. At this time, the insertion ring 3 drives the porous baffle 5 fixedly installed on its inner wall to move out simultaneously. After the restriction on one end of the spiral blade 4 is removed, the worn spiral blade 4 can be pulled out.

[0025] Please refer to this carefully. Figure 2 and Figure 3 The positioning mechanism includes a connector 8 integrally formed on the end of the plug ring 3 away from the porous baffle 5. One end of the outer tube 1 is provided with a mating groove 7 to accommodate the connector 8. The connector 8 has round holes equidistantly spaced in the inner circumference. One end of the inner wall of the connector 8 is integrally formed with an outwardly protruding positioning post 10, which is inserted into the inner wall of the round hole. Two slots 9 are provided on the end face of the connector 8 away from the plug ring 3. The inner wall of the slots 9 is connected to a retaining ring 13. A sealing ring 6 is integrally formed on the side of the retaining ring 13 away from the connector 8. The sealing ring 6 is used to seal the positioning post 10 and the mating position of the connector 8 and the mating groove 7. The inner diameter of the sealing ring 6 is equal to the inner diameter of the connector 8.

[0026] In this embodiment: When installing a new spiral blade 4, after the spiral blade 4 is fully inserted, the connector 8 drives the insertion ring 3 to insert into the inner wall of the outer tube 1. After the insertion ring 3 is fully inserted, the connector 8 is located on the inner wall of the mating groove 7, and the positioning post 10 is inserted into the round hole. At this time, the position of the connector 8 is limited. Then, the retaining ring 13 is mated with the retaining groove 9 to complete the installation of the sealing ring 6. After that, when the outer tube 1 is installed with the pipe, one end of the pipe effectively squeezes the sealing ring 6 to achieve the sealing of the connector 8 by the sealing ring 6, avoiding the occurrence of material jamming in the gap.

[0027] Please refer to this carefully. Figure 4 and Figure 5 The docking mechanism includes a plug groove 11 opened along the vertical stop bar of the perforated baffle 5, and a plug block 12 integrally formed at one end of the two spiral blades 4 located at opposite ends to dock with the plug groove 11.

[0028] In this embodiment: during the installation of the new helical blade 4, the plug-in block 12 is aligned with the corresponding plug-in slot 11 one by one, and the two are effectively engaged. This can prevent the helical blade 4 from rotating under the thrust of the fluid during the flow of the medium.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A static mixer comprising an outer tube (1), characterized in that Both ends of the outer tube (1) are integrally connected with flanges (2), the inner part of the outer tube (1) is provided with mounting mechanisms, a plurality of spiral blades (4) are arranged between the mounting mechanisms, the spiral blades (4) are connected with the mounting mechanisms through butt joint mechanisms, the two spiral blades (4) are in contact with each other at one end in a cross shape, and one of the connecting flanges (2) is connected with part of the mounting mechanism through a positioning mechanism.

2. A static mixer according to claim 1, wherein The mounting mechanism comprises a plug-in ring (3) plugged into one end of the inner wall of the outer tube (1), and a plurality of perforated baffles (5) are fixedly installed on the inner wall of the outer tube (1) at one end close to the spiral blades (4) and the other end.

3. A static mixer according to claim 2, wherein The positioning mechanism comprises a butt joint (8) integrally formed at one end of the plug-in ring (3) away from the perforated baffles (5), one end of the outer tube (1) is provided with a butt joint groove (7) for accommodating the butt joint (8), a circular hole is equidistantly formed in the circumferential direction of the inner part of the butt joint (8), a positioning column (10) protruding outward is integrally formed at one end of the inner wall of the butt joint (8), and the positioning column (10) is plugged into the inner wall of the circular hole.

4. A static mixer according to claim 3, wherein The butt joint mechanism comprises a plug-in groove (11) formed along the vertical blocking rod of the perforated baffle (5), and the end of the two spiral blades (4) away from each other is integrally formed with a plug-in block (12) butt jointed with the plug-in groove (11).

5. A static mixer according to claim 4, wherein Two clamping grooves (9) are formed on the end face of the butt joint (8) away from the plug-in ring (3), a clamping ring (13) is butt jointed to the inner wall of the clamping groove (9), a sealing ring (6) is integrally formed on the side of the clamping ring (13) away from the butt joint (8), the sealing ring (6) is used for sealing the positioning column (10) and the butt joint position of the butt joint (8) and the butt joint groove (7), and the inner diameter of the sealing ring (6) is equal to the inner diameter of the butt joint (8).

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