Static helical blade chemical mixer

Abstract

The utility model discloses a static helical fin formula chemical industry mixer, including the feed pipe, the mixing pipe and the discharge pipe who connects gradually, the mixing pipe inner wall is installed with mixing element, the mixing element includes the helical mixing unit of multiple even distribution along the axial arrangement of mixing pipe, and the twist angle of multiple helical mixing unit is same, and multiple helical mixing unit sets up according to same rotation, and their connecting line constitutes a helix along the axial distribution of mixing pipe in the mixing pipe inner wall, the helical mixing unit is multiple and sets up the spiral blade, and spiral blade is made into with corrugated board. The utility model discloses through setting up multiple static helical mixing unit, utilizes the fluidity of fluid itself, and when flowing through helical mixing unit, constantly produces the shunt and cross mixing, and effectively improves the efficiency and effect of mixing.

Description

Technical Field

[0001] This utility model belongs to the field of chemical raw material mixing technology, specifically relating to a static spiral vane chemical mixer. Background Technology

[0002] In chemical production, the mixing of ethylene oxide (EO), propylene oxide (PO), and butane oxide (BO) is a crucial step. Traditional mixing methods primarily employ mechanical stirring, which is time-consuming, resulting in low mixing efficiency and difficulty in achieving thorough mixing of the two fluids. Furthermore, this method leads to poor batch-to-batch consistency of the resulting mixtures, causing unstable product quality. Additionally, the stirring process may generate static electricity or sparks, posing a high safety risk. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a static spiral vane chemical mixer that addresses the shortcomings of the prior art by utilizing the fluid flow in the pipeline to achieve efficient mixing.

[0004] The technical solution adopted by this utility model is: a static spiral blade chemical mixer, including a feed pipe, a mixing pipe and a discharge pipe connected in sequence. The inner wall of the mixing pipe is equipped with a mixing element, which includes a plurality of uniformly distributed spiral mixing units arranged along the axial direction of the mixing pipe. The plurality of spiral mixing units have the same twist angle and are arranged in the same direction of rotation. Their connecting line forms a spiral line distributed along the axial direction of the mixing pipe on the inner wall of the mixing pipe. The spiral mixing unit is a plurality of spiral blades arranged side by side, and the spiral blades are made of corrugated plates.

[0005] Preferably, the mixing tube is provided with two sets of mixing elements, which are symmetrically arranged and form two symmetrical spiral lines distributed along the axial direction of the mixing tube on the inner wall of the mixing tube.

[0006] Preferably, the spiral mixing unit includes 3-10 spiral blades, with a spacing of 1-3 mm between each spiral blade.

[0007] Preferably, the spiral blade has several micropores evenly distributed on it.

[0008] Preferably, the twist angle of the helical blade is 30° to 60°, and the thickness of the helical blade is 1-5 mm.

[0009] Preferably, the surface of the helical blades is coated with an anti-corrosion coating.

[0010] The beneficial effects of this utility model are as follows: (1) The spiral mixing unit utilizes the turbulence and shear effects of the fluid to continuously generate diversion, cross mixing and reverse swirling flow as the fluid flows from the high pressure area to the low pressure area, which greatly promotes the uniform mixing of the fluid and effectively improves the mixing efficiency and mixing effect. (2) By using pipeline transportation and mixing, continuous mixing of two raw materials can be achieved, which is suitable for large-scale production, ensuring the continuity and stability of production. Compared with traditional batch production, it reduces the risk of material transfer and pollution, improves production efficiency, and reduces the sources of danger. (3) Static mixing is achieved by the high-speed flow of the fluid in the pipeline. Compared with traditional agitator mixing, this effectively reduces the floor space occupied by the mixing equipment. At the same time, it can be installed and modified in the existing pipeline system, thus improving space utilization. (4) It is composed of pipes and spiral mixing units, which replaces complex mechanical moving parts. It relies solely on the fluid flow to achieve mixing, making the mixing pipe structure simple, easy to maintain and clean, and effectively reducing equipment maintenance costs and failure rate. (5) The twist angle of the spiral mixing unit causes the fluid to swirl in the opposite direction during the flow process, thereby further enhancing the mixing effect; (6) The spiral mixing unit consists of multiple spiral blades arranged side by side, which allows the fluid to be continuously split and merged, increasing the contact area between the fluids; (7) The spiral blades are made of corrugated plates. After the fluid is stratified by the spiral blades, it is separated by the corrugated plates and forms a vortex zone and a backflow zone, which further promotes the mixing of the two fluids. Different mixing effects can be achieved by replacing the corrugated plates with different corrugation heights and inclination angles.

[0011] (8) Setting up two sets of mixing elements can make the fluid flow cross-flow along two spiral lines, which promotes mixing.

[0012] This invention improves mixing efficiency and effectiveness by setting up multiple static spiral mixing units and utilizing the fluid's own fluidity to continuously generate diversion and cross-mixing as the fluid flows through the spiral mixing units. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the end face of the mixing tube of this utility model.

[0014] In the diagram: 1. Feed pipe; 2. Mixing pipe; 3. Discharge pipe; 4. Spiral mixing unit; 41. Spiral blade; 42. Micropore. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Example

[0016] like Figure 1 and Figure 2 As shown, the static spiral blade chemical mixer provided in this embodiment includes a feed pipe 1, a mixing pipe 2 and a discharge pipe 3 connected in sequence. A mixing element is installed on the inner wall of the mixing pipe 2. The mixing element includes a plurality of uniformly distributed spiral mixing units 4 arranged along the axial direction of the mixing pipe 2. The plurality of spiral mixing units 4 have the same twist angle. The preferred twist angle is 30°-60°. In this embodiment, the twist angle of the spiral mixing unit 4 is 45°. Multiple spiral mixing units 4 are arranged in the same direction of rotation, and their connecting lines form a spiral line distributed along the axial direction of the mixing tube 2 on the inner wall of the mixing tube 2; in this embodiment, there are two sets of mixing elements, and the two sets of mixing elements are symmetrically arranged, forming two symmetrical spiral lines distributed along the axial direction of the mixing tube 2 on the inner wall of the mixing tube 2. The spiral mixing unit 4 consists of multiple spiral blades 41 arranged side by side, and the spiral blades 41 are made of corrugated plates. In this embodiment, each spiral mixing unit 4 consists of 5 spiral blades 41 arranged side by side. The thickness of each spiral blade 41 is 3 mm, and the interval between two adjacent spiral blades 41 is 2 mm. Several micropores 42 are evenly distributed on the spiral blades 41, and the surface of the spiral blades 41 is coated with an anti-corrosion coating.

[0017] In use, two of the raw materials, EO and PO or BO, are premixed in a predetermined ratio. The premixed fluids are then fed into the mixing pipe 2 through the feed pipe 1. It should be noted that chemical fluids are generally transported using a circulating pump, so the mixed fluids flow from the high-pressure zone at the feed end to the low-pressure zone at the discharge end, thus possessing fluidity. After entering the mixing pipe 2, the two fluids are diverted by multiple parallel spiral blades 41 of the spiral mixing unit 4. The spiral blades 41 are corrugated, so the fluids flowing between the spiral blades 41 are affected by the corrugated plate structure, forming turbulence and vortices. This causes the fluids to continuously generate diversion, cross-mixing, and reverse swirling as they flow through the mixing pipe 2, thereby achieving thorough mixing of the two fluids. The number, twist angle, and swirl direction of the spiral blades 41 distributed along the axial direction of the mixing pipe 2 can all be adjusted according to actual mixing requirements to meet different mixing needs.

[0018] 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 modifications and substitutions based on the technical solutions and utility model concepts provided by the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A static spiral vane chemical mixer, characterized in that: The device includes a feed pipe (1), a mixing pipe (2), and a discharge pipe (3) connected in sequence. The inner wall of the mixing pipe (2) is equipped with a mixing element. The mixing element includes a plurality of uniformly distributed spiral mixing units (4) arranged along the axial direction of the mixing pipe (2). The plurality of spiral mixing units (4) have the same twist angle and are arranged in the same direction of rotation. Their connecting line forms a spiral line distributed along the axial direction of the mixing pipe (2) on the inner wall of the mixing pipe (2). The spiral mixing unit (4) consists of a plurality of spiral blades (41) arranged side by side. The spiral blades (41) are made of corrugated plates.

2. The static spiral vane chemical mixer according to claim 1, characterized in that: The mixing tube (2) is provided with two sets of mixing elements. The two sets of mixing elements are symmetrically arranged and form two symmetrical spiral lines distributed along the axial direction of the mixing tube (2) on the inner wall of the mixing tube (2).

3. A static spiral vane chemical mixer according to claim 1 or 2, characterized in that: The spiral mixing unit (4) includes 3-10 spiral blades (41), with a spacing of 1-3 mm between each spiral blade (41).

4. A static spiral vane chemical mixer according to claim 3, characterized in that: The spiral blade (41) has several micropores (42) evenly distributed on it.

5. A static spiral vane chemical mixer according to claim 3, characterized in that: The twist angle of the helical blade (41) is 30° to 60°, and the thickness of the helical blade (41) is 1-5 mm.

6. A static spiral vane chemical mixer according to claim 3, characterized in that: The surface of the spiral blade (41) is coated with an anti-corrosion coating.

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