Efficient adjustable dynamic mixer

Abstract

The invention relates to the technical field of mixers, in particular to an efficient adjustable dynamic mixer which comprises a pipeline, a driving mechanism is arranged on the pipeline, multiple sets of stirring pieces are arranged in the pipeline, each stirring piece comprises a spiral blade, and the driving mechanism is used for driving the stirring pieces to rotate. And the rotating axis of the stirring piece extends along the extending direction of the central axis of the pipeline. The driving mechanism actively drives the multiple sets of spiral blades in the pipeline to rotate around the axis of the pipeline, the mixing efficiency is remarkably improved, and the head loss is reduced.

Description

Technical Field

[0001] The present application relates to the field of mixers, and in particular to a high-efficiency adjustable dynamic mixer. Background Art

[0002] Wastewater treatment often requires the addition of chemicals, which require a specific device to produce them: a dynamic mixer. Dynamic mixers, also commonly known as static mixers or pipeline mixers, are used to mix water and chemicals and are widely used in the chemical, food, pharmaceutical, environmental protection, and petroleum industries.

[0003] In the prior art, a dynamic mixer includes a pipe, spiral blades fixedly arranged in the pipe, and a rectifying grid. There are two groups of spiral blades, and the two groups of spiral blades have opposite rotation directions. The two groups of spiral blades and the rectifying grid are arranged in sequence along the conveying direction of the mixture, so that the mixture is first caused to flow in a forward rotation, then to flow in a reverse rotation, and finally to rectify the mixture, thereby achieving the purpose of mixing the medicines. The dynamic mixer in the prior art is a device that does not require external mechanical drive components and relies solely on the kinetic energy of the fluid itself to achieve mixing, dispersion, heat transfer or reaction. However, the above-mentioned dynamic mixer will lose part of the kinetic energy of the mixture flow during the process of mixing the medicines, resulting in problems such as large head loss, average medicine mixing effect, and high medicine consumption. Summary of the Invention

[0004] In order to improve the mixing effect of the dynamic mixer, the present application provides a high-efficiency adjustable dynamic mixer.

[0005] This application provides a high-efficiency adjustable dynamic mixer, which adopts the following technical solutions: A high-efficiency adjustable dynamic mixer includes a pipeline, a driving mechanism is provided on the pipeline, and multiple groups of stirring elements are provided in the pipeline. The stirring elements include spiral blades. The driving mechanism is used to drive the stirring elements to rotate, and the rotation axis of the stirring elements extends along the extension direction of the central axis of the pipeline.

[0006] By adopting the above technical solution, the driving mechanism actively drives multiple sets of spiral blades in the pipeline to rotate around the pipeline axis, breaking through the limitation of traditional static mixers relying on fluid kinetic energy, significantly improving mixing efficiency and reducing head loss. At the same time, the dynamic stirring of the spiral blades can adapt to the mixing needs of fluids with different viscosities and reduce drug residues; the speed and rotation direction of the stirring element can be adjusted to improve the applicability of the device; the spiral blades can play a role in pushing flow and stirring the mixture.

[0007] Optionally, the driving mechanism includes a driving source and a reversing assembly, the driving source is arranged on the outer circumferential surface of the pipe, the rotation axis of the driving source intersects with the rotation axis of the stirring element, and the reversing assembly is used to convert the rotation direction of the driving source into the rotation direction of the stirring element.

[0008] By adopting the above technical solution, the driving source is set outside the pipeline, and the driving source and reversing component with intersecting rotation axes are used to efficiently transmit the power of the external driving source to the stirring element inside the pipeline, which not only saves installation space but also avoids sealing interference. The reversing component ensures that the power direction is precisely adapted to the axial rotation requirements of the stirring element.

[0009] Optionally, the driving mechanism also includes an output shaft, the driving source drives the output shaft to rotate through a reversing assembly, the stirring element also includes a sleeve mounted on the output shaft, the spiral blades are arranged on the outer peripheral surface of the sleeve, and a through-hole extending in the axial direction is opened through the sleeve, and the through-hole is for the output shaft to pass through.

[0010] By adopting the above technical solution, the spiral blades and the output shaft can be quickly disassembled and assembled, and the axial position can be flexibly adjusted through the sleeve structure of the output shaft and the perforated sleeve, and stirring elements of the same specifications can be produced in a unified manner; when it is necessary to realize multiple spiral blades with different rotation directions, the same stirring element can be used, and the axial ends of the sleeve can be reversed and then put on the output shaft to achieve this, thereby improving the applicability of the stirring element, reducing production costs, and reducing backlog inventory; the perforated design of the sleeve ensures transmission stability and facilitates customization of the blade layout according to different mixing stages.

[0011] Optionally, the driving mechanism further includes two output shafts, the two output shafts are arranged axially, multiple groups of stirring elements are provided on the two output shafts, each output shaft is provided with a stirring element, and the reversing assembly is used to drive the two output shafts to rotate in the same direction or in opposite directions.

[0012] By adopting the above technical solution, the dual output shafts cooperate with the reversing assembly to drive multiple groups of stirring elements to rotate in the same or opposite directions, generating controllable shear flow or turbulent field, enhancing the interaction between fluid layers, and the reverse rotation is particularly suitable for difficult mixing conditions, while the same direction rotation reduces energy consumption.

[0013] Optionally, a connecting tube is further included, a spline is formed on the circumferential side wall of the end of the output shaft, and spline grooves are provided on both axial end faces of the connecting tube, and the two spline grooves are respectively used for inserting the ends of the two output shafts.

[0014] By adopting this technical solution, if counter-rotation of the two output shafts is required, the fixed connection between the output shafts and the connecting cylinder is omitted, and the two output shafts remain independent shafts. When both output shafts are connected to the connecting cylinder, the spline-to-slot design enables circumferential torque transmission between the output shafts and the connecting cylinder, ultimately achieving co-rotation of the two output shafts (equivalent to a single shaft). This reduces the need for customized production of output shafts and reduces the backlog of output shaft inventory.

[0015] Optionally, a locking structure is further included, the spline groove and the spline clearance are matched, a sleeve is provided on the outer peripheral surface of the connecting cylinder, and the locking structure is used to lock the sleeve and the output shaft in the axial direction.

[0016] By adopting the above technical solution, the combination of the sleeve and the locking structure eliminates the risk of axial movement due to the clearance fit between the spline and the spline groove, ensures the transmission rigidity through axial locking, and prevents the connection from loosening due to vibration.

[0017] The locking mechanism is configured to: enable the locking mechanism to move relative to the support frame of the machine tool and to enable the locking mechanism to move relative to the support frame of the machine tool in a forward direction, so that the locking mechanism can be moved relative to the support frame of the machine tool in a forward direction.

[0018] By adopting the above technical solution, when the staff wants to axially lock the sleeve and the output shaft, they first insert the locking block through the disassembly hole into the sleeve. The locking block contacts the limit block and overcomes the elastic force of the reset elastic member to press the limit block back into the telescopic slot. Then, the locking block is moved in a direction away from the bottom wall of the telescopic slot, so that the locking block moves to the point where the anti-slip portion is radially located between the inner wall of the sleeve and the outer wall of the output shaft. At this time, the locking block and the limit block are no longer in contact, and the limit block pops out of the telescopic slot under the action of the reset elastic member. At this time, the limit portion is axially located between the hole wall of the disassembly hole and the end of the limit block. The limit portion limits the output shaft in the axial direction, and the anti-slip portion prevents the locking block from slipping out between the output shaft and the sleeve. The spring-loaded locking mechanism of the limit block and the reset elastic member, combined with the limit portion and anti-slip portion of the locking block, enables quick one-handed disassembly and assembly: it automatically locks when inserted and can be unlocked by pressing the limit block, greatly improving maintenance efficiency in confined spaces, and the anti-slip portion prevents accidental separation.

[0019] Optionally, the locking block is a wedge-shaped block, and the distance between the inclined surface of the wedge block and the outer wall of the output shaft decreases in the direction away from the bottom wall of the spline groove. The connecting edge between the hole wall of the disassembly hole away from the bottom wall of the spline groove and the inner wall of the sleeve is a contact edge, and the inclined surface of the wedge block is used to contact the contact edge.

[0020] By adopting the above technical solution, the self-locking surface contact between the inclined surface of the wedge block and the contact edge of the sleeve converts the axial force into a radial clamping force, thereby enhancing the connection stability and maintaining reliable locking under vibration conditions. At the same time, the inclined surface guide facilitates assembly and alignment.

[0021] Optionally, the limiting structure includes a limiting surface provided on a circumferential side wall of the output shaft, the limiting surface extends in a direction parallel to the axial direction of the output shaft, and the locking block is located on the limiting surface.

[0022] By adopting the above technical solution, the limiting surface guides the locking block to slide precisely along the axial direction, eliminating jamming or dislocation caused by circumferential offset, ensuring the consistency of the interference position between the locking block and the disassembly hole wall and the limiting block, and improving the fault tolerance of the disassembly operation; and ensuring that the locking block and the limiting surface are in surface contact, thereby improving the locking performance.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The driving mechanism actively drives multiple sets of spiral blades in the pipeline to rotate around the pipeline axis, significantly improving mixing efficiency and reducing head loss; 2. When it is necessary to achieve multiple spiral blades with different rotation directions, the same stirring element can be used. The axial ends of the sleeve can be reversed and then the output shaft can be installed. This improves the applicability of the stirring element, reduces production costs, and reduces inventory backlogs. 3. The spring-loaded locking mechanism of the limit block and the resetting elastic member, combined with the limit portion and anti-slip portion of the locking block, enables quick disassembly and assembly with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of Example 1 of the present application.

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0026] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0027] Figure 4 This is a structural diagram highlighting the two output shafts in Example 2 of the present application.

[0028] Figure 5 It is an exploded schematic diagram of the connecting cylinder and the output shaft in Example 2 of the present application.

[0029] Figure 6 yes Figure 4 Axial cross-sectional view.

[0030] Explanation of the accompanying drawings: 1. Pipe; 2. Driving mechanism; 21. Driving source; 22. Reversing assembly; 221. Driving gear; 222. Driven gear; 23. Output shaft; 231. Spline; 232. Telescopic groove; 3. Stirring member; 31. Spiral blade; 32. Bushing; 321. Perforation; 4. Connecting cylinder; 41. Spline groove; 5. Locking structure; 51. Locking block; 511. Limiting portion; 512. Anti-slip portion; 52. Wedge block; 6. Sleeve; 61. Disassembly hole; 611. Contact edge; 7. Limiting structure; 71. Limiting surface; 8. Limiting block; 9. Resetting elastic member; 100. Support sleeve; 110. Support rod. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-6 This application is described in further detail.

[0032] Example 1: Example 1 of the present application discloses a highly efficient and adjustable dynamic mixer. Figure 1 The high-efficiency adjustable dynamic mixer includes a pipeline 1, a driving mechanism 2 is provided on the pipeline 1, a plurality of stirring members 3 are provided in the pipeline 1, the stirring members 3 include spiral blades 31, the driving mechanism 2 is used to drive the stirring members 3 to rotate, and the rotation axis of the stirring members 3 extends along the extension direction of the central axis of the pipeline 1.

[0033] Reference Figure 1 and Figure 2 The driving mechanism 2 includes a driving source 21, a reversing assembly 22, and an output shaft 23. The output shaft 23 is coaxially arranged with the pipeline 1, and the stirring member 3 is mounted on the output shaft 23. The driving source 21 drives the output shaft 23 to rotate through the reversing assembly 22, thereby driving the stirring member 3 to rotate. In this embodiment, the driving source 21 is a motor. The driving source 21 is fixedly mounted on the outer peripheral surface of the pipeline 1. The rotating shaft of the driving source 21 extends along the radial direction of the pipeline 1 and extends into the pipeline 1. The reversing assembly 22 includes a driving gear 221 fixedly mounted on the rotating shaft of the driving source 21. The reversing assembly 22 also includes a driven gear 222 fixedly mounted on the output shaft 23. The driving gear 221 and the driven gear 222 are both bevel gears, and the driving gear 221 is meshed with the driven gear 222.

[0034] In other embodiments, the reversing assembly 22 may not be provided, and the driving mechanism 2 may adopt other methods, any method that can drive the output shaft 23 to rotate. In other embodiments, the reversing assembly 22 may not adopt a bevel gear transmission method, and any structure that can achieve reversal may be used.

[0035] Reference Figure 1 and Figure 3In this embodiment, two stirring members 3 are provided, and the two stirring members 3 are respectively located on the two axial ends of the output shaft 23. The stirring member 3 also includes a sleeve 32, and the spiral blade 31 is integrally formed on the outer peripheral surface of the sleeve 32. A through-hole 321 extending in the axial direction is opened through the axial end surface of the sleeve 32. The sleeve 32 is sleeved on the output shaft 23, and the through-hole 321 is for the output shaft 23 to pass through. The sleeve 32 is fixedly mounted on the output shaft 23 by a bolt assembly. In other embodiments, more than two stirring members 3 can be provided, and the stirring members 3 are arranged along the axial direction of the output shaft 23.

[0036] Reference Figure 1 The high-efficiency, adjustable dynamic mixer also includes a support sleeve 100 and three support rods 110. The output shaft 23 is rotatably mounted within the support sleeve 100 via a bearing assembly. The three support rods 110 are fixedly mounted on the outer circumference of the support sleeve 100 and are evenly arranged along the outer circumference of the support sleeve 100, with the angle between adjacent support rods 110 being 120°. The support rods 110 are located on the outer circumference of the support sleeve 100, away from the rotating axis of the drive source 21, providing better support for the longer support sleeve 100.

[0037] The implementation principle of a high-efficiency adjustable dynamic mixer in Example 1 of the present application is: the driving source 21 is started, and the direction and speed of the driving source 21 can be adjusted according to actual needs. The driving gear 221 and the driven gear 222 are engaged and transmitted, thereby driving the output shaft 23 to rotate, thereby driving the stirring element 3 to rotate, and the spiral blades 31 in the stirring element 3 convey and stir the mixture.

[0038] Example 2: Reference Figure 4 , different from Example 1, in this embodiment, there are two output shafts 23, and the two output shafts 23 are arranged axially, and the two stirring members 3 are respectively fixedly mounted on the two ends of the two output shafts 23 that are away from each other (not shown in the figure). In other embodiments, there may be multiple stirring members 3, and the multiple stirring members 3 are respectively arranged on the two output shafts 23, and each output shaft 23 is provided with a stirring member 3. The two output shafts 23 are detachably connected. If the two output shafts 23 are fixedly connected, there is only one driven gear 222, and the driven gear 222 is located on any one of the output shafts 23 (not shown in the figure), so that the two output shafts 23 rotate in the same direction. If the two output shafts 23 are not connected, there are two driven gears 222, and the two driven gears 222 are respectively located on different output shafts 23, so that the two output shafts 23 rotate in opposite directions.

[0039] Reference Figure 5The high-efficiency, adjustable dynamic mixer also includes a connecting barrel 4, which is cylindrical and has axially extending spline grooves 41 formed on both axial end surfaces. Splines 231 are formed on the circumferential sidewalls of the adjacent ends of the two output shafts 23. The spline grooves 41 are inserted into the splined ends of the output shafts 23, and the splines 231 and spline grooves 41 have a clearance fit.

[0040] Reference Figure 4 and Figure 6 , a sleeve 6 is integrally formed on the outer circumferential surface of the connecting tube 4, and the sleeve 6 is cylindrical, and the axial dimension of the sleeve 6 is larger than the axial dimension of the connecting tube 4. The high-efficiency adjustable dynamic mixer also includes a locking structure 5, which is used to lock the sleeve 6 and the output shaft 23 in the axial direction. The locking structure 5 includes a locking block 51, and the locking block 51 is slidably installed on the output shaft 23 in a direction parallel to the axial direction of the output shaft 23. A disassembly hole 61 extending in the radial direction is provided on the outer circumferential surface of the sleeve 6, and the cross-sectional dimension of the disassembly hole 61 along the axial direction is greater than or equal to the cross-sectional dimension of the locking block 51 along the axial direction, that is, the disassembly hole 61 can be passed through by the locking block 51. In other embodiments, the sleeve 6 can also be press-fitted onto the outer circumferential surface of the connecting tube 4.

[0041] Reference Figure 4 and Figure 6 The locking block 51 includes a limiting portion 511 and an anti-slip portion 512. The limiting portion 511 is configured to extend through the disassembly hole 61 and abut against the wall of the disassembly hole 61 away from the bottom wall of the spline groove 41. The anti-slip portion 512 is located between the inner wall of the sleeve 6 and the outer wall of the output shaft 23 and abuts against both. The locking block 51 is a wedge-shaped block 52. The distance between the inclined surface of the wedge block 52 and the outer wall of the output shaft 23 decreases in a direction away from the bottom wall of the spline groove 41. The connecting edge between the wall of the disassembly hole 61 away from the bottom wall of the spline groove 41 and the inner wall of the sleeve 6 is the abutting edge 611. The inclined surface of the wedge block 52 is configured to abut against the abutting edge 611. In other embodiments, the locking block 51 may not be the wedge block 52. The cross-sectional shape of the locking block 51 along the axial direction is "L"-shaped. The axial direction of the output shaft 23 is set to be horizontal and the radial direction is set to be vertical. Then, the vertical section of the locking block 51 is the limiting portion 511, and the horizontal section is the anti-slip portion 512.

[0042] Reference Figure 5 and Figure 6 A radially extending expansion slot 232 is defined on the outer wall of the output shaft 23, near the inner wall of the sleeve 6. A limit block 8 is slidably mounted within the expansion slot 232. A return spring 9 is press-fitted between the limit block 8 and the bottom wall of the expansion slot 232. The return spring 9 is a compression spring that drives the end of the limit block 8 out of the expansion slot 232. A limit portion 511 is located between the limit block 8 and the wall of the disassembly hole 61, which is away from the bottom wall of the spline groove 41. The limit portion 511 is also configured to interfere with the limit block 8.

[0043] In other embodiments, the locking structure 5 may not be the locking block 51. The locking structure 5 may include a locking groove formed on the inner wall of the sleeve 6, into which the locking block 51 is inserted, and the output shaft 23 may also be locked in the axial direction. In other embodiments, the locking structure 5, the sleeve 6, the limiting block 8, the telescopic groove 232, and the resetting elastic member 9 may not be provided, and the spline 231 and the spline groove 41 may be interference fit.

[0044] Reference Figure 4 and Figure 5 The high-efficiency adjustable dynamic mixer also includes a limiting structure 7, which is used to limit the sliding of the locking block 51 along the circumferential side wall of the output shaft 23. The limiting structure 7 includes a limiting surface 71 provided on the circumferential side wall of the output shaft 23 near the disassembly hole 61. The limiting surface 71 extends in a direction parallel to the axial direction of the output shaft 23. The dimension of the limiting surface 71 in a direction parallel to the radial direction of the output shaft 23 is equal to the dimension of the locking block 51 in a direction parallel to the radial direction of the output shaft 23. In other embodiments, the limiting structure 7 may also include two hole walls of the disassembly hole 61 in a direction parallel to the radial direction of the output shaft 23, the two hole walls interfering with the locking block 51, thereby guiding the movement of the locking block 51. The limiting structure 7 may also include a limiting groove provided on the inner circumferential surface of the outer wall of the sleeve 6 near the output shaft 23, the limiting groove being connected to the disassembly hole 61, and the groove wall of the limiting groove interfering with the anti-slip portion 512, thereby limiting the locking block 51.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-efficiency adjustable dynamic mixer, characterized by: The invention comprises a pipeline (1), wherein a driving mechanism (2) is provided on the pipeline (1), wherein a plurality of stirring members (3) are provided in the pipeline (1), wherein the stirring members (3) comprise spiral blades (31), and wherein the driving mechanism (2) is used for driving the stirring members (3) to rotate, wherein the rotation axis of the stirring members (3) extends along the extension direction of the central axis of the pipeline (1).

2. The high-efficiency adjustable dynamic mixer according to claim 1, characterized in that: The driving mechanism (2) comprises a driving source (21) and a reversing assembly (22); the driving source (21) is arranged on the outer peripheral surface of the pipe (1); the rotation axis of the driving source (21) intersects with the rotation axis of the stirring member (3); and the reversing assembly (22) is used to convert the rotation direction of the driving source (21) into the rotation direction of the stirring member (3).

3. The high-efficiency adjustable dynamic mixer according to claim 2, characterized in that: The driving mechanism (2) further comprises an output shaft (23), the driving source (21) drives the output shaft (23) to rotate via a reversing assembly (22), the stirring member (3) further comprises a sleeve (32) sleeved on the output shaft (23), the spiral blade (31) is arranged on the outer peripheral surface of the sleeve (32), and a through hole (321) extending in the axial direction is formed through the sleeve (32), and the through hole (321) is for the output shaft (23) to pass through.

4. The high-efficiency adjustable dynamic mixer according to claim 2, characterized in that: The driving mechanism (2) further comprises two output shafts (23), the two output shafts (23) being arranged along the axial direction, the plurality of groups of stirring elements (3) being arranged on the two output shafts (23), each output shaft (23) being provided with a stirring element (3), and the reversing assembly (22) being used to drive the two output shafts (23) to rotate in the same direction or in opposite directions.

5. The high-efficiency adjustable dynamic mixer according to claim 4, characterized in that: It also includes a connecting tube (4), a spline (231) being formed on the circumferential side wall of the end of the output shaft (23), and a spline groove (41) being formed on both axial end faces of the connecting tube (4), the two spline grooves (41) being respectively used for inserting the ends of the two output shafts (23).

6. The high-efficiency adjustable dynamic mixer according to claim 5, characterized in that: It also includes a locking structure (5), the spline groove (41) and the spline (231) are clearance-matched, a sleeve (6) is provided on the outer peripheral surface of the connecting cylinder (4), and the locking structure (5) is used to lock the sleeve (6) and the output shaft (23) in the axial direction.

7. The high-efficiency adjustable dynamic mixer according to claim 6, characterized in that: The locking structure (5) further comprises a limiting structure (7), wherein the locking structure (5) comprises a locking block (51), the locking block (51) comprises a limiting portion (511) and an anti-slip portion (512), a disassembly hole (61) is provided on the outer peripheral surface of the sleeve (6), the disassembly hole (61) is used for allowing the locking block (51) to pass through as a whole, the limiting portion (511) is used to pass through the disassembly hole (61) and to abut against the hole wall of the disassembly hole (61), the anti-slip portion (512) is located between the inner wall of the sleeve (6) and the outer wall of the output shaft (23) and abuts against both, and the outer wall of the output shaft (23) is close to the inner wall of the sleeve (6). A telescopic groove (232) is provided, a limit block (8) is slidably provided in the telescopic groove (232), a reset elastic member (9) is provided between the limit block (8) and the bottom wall of the telescopic groove (232), the reset elastic member (9) is used to drive the end of the limit block (8) to pop out of the telescopic groove (232), the limit portion (511) is located between the limit block (8) and the hole wall of the disassembly hole (61) away from the bottom wall of the spline groove (41), the limit portion (511) is also used to interfere with the limit block (8), and the limit structure (7) is used to limit the locking block (51) from sliding along the circumferential side wall of the output shaft (23).

8. The high-efficiency adjustable dynamic mixer according to claim 7, characterized in that: The locking block (51) is a wedge-shaped block (52), and the distance between the inclined surface of the wedge-shaped block (52) and the outer wall of the output shaft (23) decreases in a direction away from the bottom wall of the spline groove (41). The connecting edge between the hole wall of the disassembly hole (61) away from the bottom wall of the spline groove (41) and the inner wall of the sleeve (6) is a contact edge (611), and the inclined surface of the wedge-shaped block (52) is used to contact the contact edge (611).

9. The high-efficiency adjustable dynamic mixer according to claim 7, characterized in that: The limiting structure (7) comprises a limiting surface (71) formed on a circumferential side wall of the output shaft (23), the limiting surface (71) extending in a direction parallel to the axial direction of the output shaft (23), and the locking block (51) is located on the limiting surface (71).

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