Oblique insertion type static mixer

Abstract

The oblique insertion type static mixer comprises a mixer shell, a material inlet and a mixer outlet are formed in the two ends of the mixer shell respectively, an oblique insertion material inlet is formed in the outer wall of the mixer shell, a mixer internal part is arranged in the mixer shell, and the mixer internal part is located between the mixer outlet and the oblique insertion material inlet. The utility model achieves the purposes of preventing materials from flowing back, reducing material resistance and energy loss, accelerating the feeding rate, preventing materials from flowing back at the outlet, fully mixing the materials and enabling the internal parts to be detachable and cleaned.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of silicon material production equipment, in particular to a slanting insertion type static mixer. BACKGROUND

[0002] When dichlorodihydrogen silicon in trichlorosilane is recycled, a reverse disproportionation reaction is involved, and before the material enters the reverse disproportionation reactor, the mixture of trichlorosilane and dichlorodihydrogen silicon and silicon tetrachloride need to be mixed, and the static mixer generally adopts vertical feeding, which has a large resistance to the material and is prone to cause material backflow, increase resistance, affect the normal flow of the material and the normal progress of the subsequent reaction. The traditional static mixer has low mixing efficiency, and the material is difficult to fully contact and mix during the mixing process, resulting in poor uniformity of the mixed material. This not only affects the product quality, but also may require additional mixing process, increasing the production cost and production time. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a slanting insertion type static mixer to prevent material backflow, reduce material resistance and energy loss, accelerate feeding rate, prevent outlet material backflow, fully mix the material and detachably clean the inner part.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of:

[0005] A slanting insertion type static mixer, comprising a mixer shell, the mixer shell is provided with a material inlet and a mixer outlet at both ends respectively, characterized in that: the outer wall of the mixer shell is provided with a slanting insertion material inlet, the inner part of the mixer shell is provided with a mixer inner part, and the mixer inner part is located between the mixer outlet and the slanting insertion material inlet.

[0006] Preferably, the number of mixer inner parts is multiple, and the multiple mixer inner parts are linearly arranged along the axis of the mixer shell.

[0007] Preferably, an outlet check valve is arranged between the mixer inner part and the mixer outlet.

[0008] Preferably, an inner part baffle is arranged between the outlet check valve and the mixer inner part.

[0009] Preferably, the mixer inner part comprises a main frame, the main frame is matched with the structure of the mixer shell, and a flow mixing part is arranged in the main frame.

[0010] Preferably, the flow mixing part is a rod connected with the main frame, and the cross section of the rod is triangular.

[0011] Preferably, the inner part baffle is an annular plate connected with the inner wall of the mixer shell.

[0012] Preferably, the material inlet is provided with a material inlet flange, the mixer outlet is provided with a material outlet flange, and the inclined material inlet is provided with an inclined material inlet flange.

[0013] Preferably, the inclined material inlet is arranged at an angle of 30° to 60° to the mixer shell.

[0014] The present invention can achieve the following beneficial effects:

[0015] This device can be used in the chemical industry, such as coal chemical industry and petrochemical industry, as well as in the pharmaceutical production process to mix two materials. It can fix the flow direction of the feed material, prevent material backflow and material cross-flow, allow the material to pass through more smoothly, reduce local resistance and energy loss, and facilitate the disassembly and cleaning of the mixer internals. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural diagram of the present utility model.

[0018] In the diagram: 1. Material inlet; 2. Inclined material inlet; 3. Mixer internals; 4. Mixer shell; 5. Mixer outlet; 6. Material inlet flange; 7. Inclined material inlet flange; 8. Material outlet flange; 9. Outlet check valve; 10. Internal baffle. Detailed Implementation

[0019] Preferred solutions include Figure 1 As shown, a slanted-insertion static mixer includes a mixer housing 4, with a material inlet 1 and a mixer outlet 5 at both ends. The key feature is that the outer wall of the mixer housing 4 has a slanted-insertion material inlet 2, and the interior of the mixer housing 4 has a mixer internal component 3 located between the mixer outlet 5 and the slanted-insertion material inlet 2. The material inlet 1 is used to input the initial material to be mixed, and the mixer outlet 5 outputs the fully mixed material. The slanted-insertion material inlet 2 is located on the outer wall of the mixer housing 4, while the mixer internal component 3 is installed inside the mixer housing 4, positioned between the mixer outlet 5 and the slanted-insertion material inlet 2. This layout design can greatly optimize the material mixing process and improve mixing efficiency and quality.

[0020] Preferably, there are multiple mixer internals 3, which are arranged linearly along the axis of the mixer shell 4. This arrangement allows the material to interact with each mixer internal 3 sequentially and uniformly during the mixing process, thereby achieving more thorough mixing.

[0021] Preferably, an outlet check valve 9 is arranged between the mixer inner part 3 and the mixer outlet 5. The function of the outlet check valve 9 is to prevent the mixed material from flowing backward, ensuring that the material can only be output from the mixer outlet 5 in the set direction, thereby ensuring the stability of the mixing process and the quality of the output material.

[0022] Preferably, an inner part baffle 10 is arranged between the outlet check valve 9 and the mixer inner part 3. The inner part baffle 10 can block and guide the flow of the material to a certain extent.

[0023] Preferably, the mixer inner part 3 comprises a main frame which is structurally compatible with the mixer shell 4, and a mixing element is arranged in the main frame. The mixing element is a rod connected to the main frame, and the cross section of the rod is triangular. The mixing element is a rod connected to the main frame, and the cross section of the rod is triangular. The rod with a triangular cross section can generate a unique turbulence effect when the material flows through, making the material form a complex mixing flow state, thereby improving the uniformity of the mixing.

[0024] Preferably, the inner part baffle 10 is an annular plate connected to the inner wall of the mixer shell 4.

[0025] Preferably, the material inlet 1 is provided with a material inlet flange 6, the mixer outlet 5 is provided with a material outlet flange 8, and the obliquely inserted material inlet 2 is provided with an obliquely inserted material inlet flange 7. The arrangement of the above-mentioned flanges facilitates the connection of the mixer with other pipelines or equipment, making the installation and maintenance of the entire mixing system more convenient.

[0026] Preferably, the obliquely inserted material inlet 2 is arranged at an angle of 30°~60° with the mixer shell 4. This can make the obliquely inserted material and the material entering from the material inlet 1 form the best intersection and mixing state in the mixer, thereby achieving the ideal mixing effect.

[0027] The working principle of the device, i.e. the material mixing process, is as follows:

[0028] The mixture of trichlorosilane and dichlorodihydrogen silane enters the static mixer from the obliquely inserted material inlet 2. This inlet is an obliquely inserted inlet, so the local resistance to the material is small, the energy loss of the material is small, and the material backflow can be prevented; silicon tetrachloride is introduced from the material inlet 1, and the flow rate of silicon tetrachloride is relatively fast. According to Bernoulli's principle, the flow rate of the material at the material inlet 1 is fast, and the pressure in the pipeline is low, which has an adsorption effect on the material at the obliquely inserted material inlet, thereby increasing the flow rate of the material at the obliquely inserted material inlet and the total feed rate; the two materials enter the interior of the static mixer, and are fully mixed by the action of the mixer inner part, and then are discharged from the material outlet 5 to enter the reverse disproportionation reactor for reaction. When the feeding is stopped, the check valve at the outlet of the mixer can effectively prevent the material from flowing backward, thereby preventing the mixer inner part from being damaged by the backward flow of the material.

[0029] The mixer inner part cleaning process: the material in the mixer is discharged, the mixer and its pipeline are replaced, the mixer is taken out after the replacement is qualified, the mixer inner part is taken out from the material inlet 1, and the silicon powder and other impurities in the inner part and the mixer are cleaned; after the cleaning is completed, the inner part and the inside of the mixer are dried, and then the inner part of the mixer is reloaded from the material inlet, so that the mixer can be continuously used.

[0030] The above-described embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be based on the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features recorded in the claims. That is, the equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A skew insert static mixer comprising a mixer housing (4) having a material inlet (1) and a mixer outlet (5) at opposite ends thereof, characterised in that: The outer wall of the mixer shell (4) is provided with an oblique material inlet (2), the inside of the mixer shell (4) is provided with a mixer inner part (3), and the mixer inner part (3) is located between the mixer outlet (5) and the oblique material inlet (2).

2. A skew insert static mixer according to claim 1, wherein: The number of the mixer inner part (3) is multiple, and the multiple mixer inner parts (3) are linearly arranged along the axis of the mixer shell (4).

3. A skew insert static mixer according to claim 2, wherein: An outlet check valve (9) is arranged between the mixer inner part (3) and the mixer outlet (5).

4. A skew insert static mixer according to claim 3 wherein: An inner part baffle (10) is arranged between the outlet check valve (9) and the mixer inner part (3).

5. A skew insert static mixer according to claim 1 wherein: The mixer inner part (3) comprises a main body frame, the main body frame is matched with the structure of the mixer shell (4), and a mixing flow part is arranged in the main body frame.

6. A skew insert static mixer according to claim 5 wherein: The mixing flow part is a rod connected with the main body frame, and the cross section of the rod is triangular.

7. A skew insert static mixer according to claim 4 wherein: The inner part baffle (10) is an annular plate connected with the inner wall of the mixer shell (4).

8. A skew insert static mixer according to claim 1 wherein: The material inlet (1) is provided with a material inlet flange (6), the mixer outlet (5) is provided with a material outlet flange (8), and the oblique material inlet (2) is provided with an oblique material inlet flange (7).

9. A skew insert static mixer according to claim 1 wherein: The oblique material inlet (2) is arranged at an angle of 30°-60° with the mixer shell (4).

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