Dynamic mixer

Abstract

The utility model discloses a dynamic mixer which comprises a charging barrel, a driving piece and a stirring piece, the stirring piece is located in the charging barrel, the stirring piece is connected with the driving piece, the driving piece drives the stirring piece to rotate in the charging barrel, the stirring piece is provided with a plurality of blades which are annularly arranged around the rotating center line of the stirring piece, the blades are spiral, and the stirring piece is connected with the driving piece. And the blades extend in the direction parallel to the autorotation center line of the stirring piece. The stirring blade has the advantages that the blades are annularly arranged around the autorotation center line of the stirring piece, so that the problem that the conventional stirring blade is of a whole spiral structure and is easy to deform when being used for stirring high-viscosity materials is solved. A plurality of blades are arranged on the stirring part, pressure on a single blade is dispersed during stirring, the probability of deformation of the blades is reduced, the blades are spiral, stirring is formed around the blades, stirring is also formed at the center of the annular arrangement when the stirring part rotates, materials are more fully mixed, and due to the fact that the blades are annularly arranged, the stirring effect is better. The cross sectional area covered by the blades is larger, so that the materials can be better stirred, and the material mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of mixing and stirring, in particular to a dynamic mixer. Background Art

[0002] Material mixing operations are common operations in industrial production, including the mixing of liquids and liquids, the mixing of liquids and solids, and the mixing of high-viscosity materials due to the poor fluidity between liquids and solids. Mixing operations can promote the uniform distribution of materials and reflect stable and balanced physical properties at the overall level. Mixing operations can be divided into static mixing operations and dynamic mixing operations according to whether the materials are in a conveyed state in the conveying pipeline. In static mixing operations, stirring blades are set in the cylinder of the mixer, and the materials temporarily stay in the cylinder. The materials in the cylinder are discharged outward after reaching the mixing degree. In dynamic mixing operations, the materials are in a conveyed state, and the materials are both conveyed and mixed when passing through the mixer.

[0003] The dynamic mixer required for dynamic mixing operations usually has stirring blades arranged along the conveying direction. The stirring blade is a whole spiral structure. The blade is long and works in high-viscosity materials. Due to the great resistance of the blade, the blade is deformed and in a non-ideal structural state. When the blade is not deformed, its range of motion only occupies a small part of the cylinder space. After the blade is deformed, the ratio of the blade's range of motion to the internal space of the cylinder will be further reduced, so the stirring function of the blade cannot be fully reflected. This type of mixer is not competent for mixing high-viscosity materials. The fluidity of high-viscosity materials themselves is in an extreme state. For example, jam, syrup, and butter, the stirring blade is more significantly affected by resistance and is very easy to deform. Utility Model Content

[0004] The utility model aims to provide a dynamic mixer, which can effectively solve the problem that the blades of the existing dynamic mixer are easily deformed when stirring high-viscosity materials.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] A dynamic mixer comprises a barrel, a driving member and a stirring member, wherein the stirring member is located in the barrel, the stirring member is connected to the driving member and the driving member drives the stirring member to rotate in the barrel, the stirring member is provided with a plurality of blades arranged in a ring around the center line of the stirring member's rotation, the blades are spiral-shaped, and the blades extend in a direction parallel to the center line of the stirring member's rotation.

[0007] In the above dynamic mixer, the stirring member includes a connecting portion connected to the driving member and a mounting portion for connecting the blades, the mounting portion is provided with spokes arranged in a ring around the center line of rotation of the stirring member, and one end of the blade is mounted on the spokes.

[0008] In the above dynamic mixer, the stirring element further includes a connecting rod and an annular fixed frame, the other end of the blade is connected to the fixed frame, the connecting rod is parallel to the center line of the stirring element's rotation, and the connecting rod is fixed between the spokes and the fixed frame.

[0009] In the above dynamic mixer, the connecting rods and the blades are arranged alternately on the same circumference.

[0010] In the above dynamic mixer, a fixing groove is provided on the spoke connected to the blade, the fixing groove is provided along the radial direction of the mounting portion, and one end of the blade is mounted in the fixing groove.

[0011] In the above-mentioned dynamic mixer, there are at least two fixed frames and they are arranged at intervals along the length direction of the center line of rotation of the stirring element. Blades arranged in a ring around the center line of rotation of the stirring element are fixed between adjacent fixed frames, and connecting rods parallel to the center line of rotation of the stirring element are also fixed between adjacent fixed frames.

[0012] In the above dynamic mixer, the blades are staggered and distributed in a direction parallel to the center line of rotation of the stirring element.

[0013] In the above dynamic mixer, a slot is formed at the end of the blade, and the slot is clamped on the end surface of the fixing frame.

[0014] In the above dynamic mixer, a fixed shaft is provided at the bottom of the barrel, and the fixed shaft extends into the center of the annular array formed by the blades.

[0015] In the above dynamic mixer, a driving shaft extending out of the barrel is provided on the top of the stirring member, and the driving member is drivingly connected to the driving shaft via a reduction box.

[0016] Compared with the prior art, the advantages of the utility model are:

[0017] The blades are arranged in a ring around the center line of the stirring element's rotation to solve the problem that the current stirring blade is a whole spiral structure and is easily deformed when stirring high-viscosity materials. Multiple blades are set on the stirring element to disperse the pressure on a single blade during stirring and reduce the probability of blade deformation. The blades are spiral-shaped. In addition to stirring around the blades, when the stirring element rotates, the center of the ring arrangement will also form agitation, which can more fully mix the materials. And because the blades are arranged in a ring, the cross-sectional area covered by the blades is larger, which can better stir the materials and improve the material mixing efficiency.

[0018] Furthermore, the stirring member includes a connection portion connected to the driving member and a mounting portion for connecting the blades, the mounting portion is provided with spokes arranged in a ring around the center line of the stirring member's rotation, and one end of the blade is mounted on the spoke. The spokes allow the blades mounted on the spokes to be spaced a certain distance apart, thereby expanding the radiation area of ​​the stirring member and more fully stirring the material.

[0019] Furthermore, the stirring member further comprises a connecting rod and a circular fixing frame, the other end of the blade is connected to the fixing frame, the connecting rod is parallel to the center line of rotation of the stirring member, and the connecting rod is fixed between the spokes and the fixing frame. When the blade is long, the other end of the blade is fixed by the fixing frame, and a connecting rod is further provided between the spokes and the fixing frame, so as to further improve the rigidity of the entire stirring member, improve the support for the blade, and reduce or avoid deformation of the blade during stirring.

[0020] Furthermore, the connecting rods and the blades are arranged alternately on the same circumference to evenly distribute the supporting force, ensure that the mounting parts and the fixing frames at both ends of each blade can obtain support, and reduce torsional deformation.

[0021] Furthermore, a fixing groove is provided on the spoke connected to the blade, the fixing groove is provided along the radial direction of the mounting portion, and one end of the blade is mounted in the fixing groove. The fixing groove increases the contact area between the blade end and the spoke, and the blade is better fixed. The fixing groove is provided along the radial direction and perpendicular to the rotation direction of the blade, and can provide better support for the blade.

[0022] Furthermore, there are at least two fixed frames arranged at intervals along the length direction of the center line of the stirring member's rotation, and blades arranged in a ring around the center line of the stirring member's rotation are fixed between adjacent fixed frames, and connecting rods parallel to the center line of the stirring member's rotation are also fixed between adjacent fixed frames. In the case of excessively high viscosity or high rotation speed of the material, by setting multiple fixed frames, the number of blade sections is increased, and the length of a single blade in each section is shortened, ensuring that the blades will not deform during the stirring process and improving the overall strength.

[0023] Furthermore, the blades are staggered in a direction parallel to the center line of the stirring member's rotation, which increases the smoothness of the flow of the material on the center line of the stirring member's rotation, and at the same time increases the degree of stirring on the center line of the stirring member's rotation, making the stirring more uniform, and the blades can also produce a better stirring effect in the diameter direction around the center line of the stirring member's rotation.

[0024] Furthermore, a clamping groove is formed at the end of the blade, and the clamping groove is clamped on the end surface of the fixing frame. The contact area between the blade and the fixing frame is increased by clamping, thereby improving the stability of the connection between the blade and the fixing frame.

[0025] Furthermore, a fixed shaft is provided at the bottom of the barrel, and the fixed shaft extends into the center of the annular array formed by the blades. The fixed shaft disrupts the flow of liquid on the rotation center line of the stirring member, disturbs the material and improves the stirring efficiency.

[0026] Furthermore, a driving shaft extending out of the barrel is provided on the top of the stirring member, and the driving member is connected to the driving shaft through a reduction box. The sealing of the barrel can be maintained by connecting the driving shaft extending out of the barrel to the reduction box, and external power can be transmitted to the stirring member. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional diagram of a dynamic mixer of the utility model;

[0028] Figure 2 This is a front view of a dynamic mixer of the utility model;

[0029] Figure 3 for Figure 2 Middle AA section view;

[0030] Figure 4 It is a three-dimensional diagram of the stirring member in the utility model.

[0031] The accompanying drawings are marked as follows:

[0032] Cylinder 100, fixed shaft 110, stirring chamber 120;

[0033] Driving member 200, reduction box 210;

[0034] The stirring member 300 , the blade 310 , the slot 311 , the connecting portion 320 , the driving shaft 321 , the mounting portion 330 , the spokes 331 , the fixing slot 332 , the connecting rod 340 , and the fixing frame 350 . DETAILED DESCRIPTION

[0035] A dynamic mixer comprises a barrel 100, a driving member 200 and a stirring member 300, wherein the stirring member 300 is located in the barrel 100, the stirring member 300 is connected to the driving member 200 and the driving member 200 drives the stirring member 300 to rotate in the barrel 100, and the stirring member 300 is provided with a plurality of blades 310 arranged in a ring around the center line of the rotation of the stirring member 300, the blades 310 are spiral-shaped, and the blades 310 extend in a direction parallel to the center line of the rotation of the stirring member 300.

[0036] The blades 310 are arranged in a ring around the center line of the rotation of the stirring element 300, which solves the problem that the stirring blade 310 is a whole spiral structure and is easy to deform when stirring high-viscosity materials. Multiple blades 310 are arranged on the stirring element 300 to disperse the pressure on a single blade 310 during stirring, reduce the probability of deformation of the blade 310, and the blade 310 is spiral. In addition to stirring around the blade 310, when the stirring element 300 rotates, the center of the ring arrangement will also form agitation, which can more fully mix the materials and improve the material mixing efficiency.

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See also Figures 1 to 4This is an embodiment of a dynamic mixer of the utility model, a dynamic mixer, including a barrel 100, a driving member 200 and a stirring member 300. The barrel 100 is cylindrical and has an opening at the top. A barrel cover is provided on the top of the barrel 100. The barrel cover and the barrel 100 are detachably sealed to form a stirring chamber 120 in the barrel 100. The top of the stirring member 300 passes through the barrel cover and is transmission-connected to the driving member 200 outside the barrel 100. The transmission method can be gear transmission or belt transmission. In this embodiment, a gear transmission method is adopted to make the driving member 200 drive the stirring member 300 to rotate. In order to avoid the dynamic mixer occupying too high a height, a worm gear transmission is also adopted to change the transmission direction.

[0042] The stirring member 300 rotates around its own axis in the barrel 100. Generally, the rotation axis of the stirring member 300 coincides with the axis of the barrel 100. The stirring member 300 is provided with a plurality of blades 310 arranged in a ring around the center line of the stirring member 300. Each blade 310 has a consistent spiral shape, and the blade 310 extends in a direction parallel to the center line of the stirring member 300. Generally speaking, the top of the blade 310 is fixed on the stirring member 300, and the bottom of the blade 310 extends toward the bottom of the barrel 100, so that the reaction force of the stirring material on the original spiral blade 310 is dispersed to multiple blades 310, avoiding or reducing the deformation of the blade 310 during stirring. When the stirring member 300 rotates, in addition to the stirring blade 310 disturbing the material around itself, stirring is also formed in the center of the ring array, so as to better stir the material in the barrel 100 to achieve the purpose of sufficient stirring.

[0043] Furthermore, the stirring member 300 includes a connecting portion 320 connected to the driving member 200 and a mounting portion 330 for connecting the blades 310. The connecting portion 320 can be made into a cylindrical driving shaft 321, which passes through the stirring chamber 120 and is connected to the driving member 200, or can be a docking hole, and the driving member 200 is inserted into the docking hole to drive the stirring member 300 to rotate; the mounting portion 330 is provided with spokes 331 arranged in a ring around the center line of the rotation of the stirring member 300, and the top of the blade 310 is mounted on the spokes 331. The position of the blade 310 can be fixed by the spokes 331, and the annular array arrangement of the blades 310 is maintained to avoid mutual interference between the blades 310. Furthermore, a reduction box 210 can be arranged between the driving member 200 and the stirring member 300 to adjust the rotation speed of the stirring member 300.

[0044] When the blade 310 is long, in order to prevent the lower end of the blade 310 from swinging too much during stirring and affecting the stirring effect, the stirring member 300 also includes a connecting rod 340 and a circular fixing frame 350. The lower end of the blade 310 is fixedly connected to the fixing frame 350, thereby fixing the lower end of the blade 310, so that the upper and lower ends of all blades 310 are fixed, and a connecting rod 340 is arranged between the spokes 331 and the fixing frame 350. The connecting rod 340 is arranged parallel to the center line of the rotation of the stirring member 300, further improving the rigidity of the entire stirring member 300 and preventing the stirring member 300 from twisting around the center line of the rotation during stirring. Furthermore, the connecting rod 340 and the blade 310 are alternately arranged on the same circumference, and rigid supports are formed on both sides of each blade 310 along the circumferential direction to prevent the blade 310 from twisting and deforming during stirring.

[0045] Since the spiral structure of the blade 310 needs to be processed separately, the blade 310 and the spoke 331 can be fixedly connected by welding or bonding. However, in order to make the connection between the blade 310 and the spoke 331 more secure and to preliminarily locate the positions of the blade 310 and the spoke 331 before welding or bonding, a fixing groove 332 is opened on the Futian, and the top of the blade 310 is installed in the fixing groove 332. The fixing groove 332 is opened along the radial direction of the mounting portion 330, and an insertion port is opened at the outermost end. This makes it convenient to insert the blade 310 into the fixing groove 332 during installation. After the blade 310 is inserted into the fixing groove 332, it is welded or bonded to fix it.

[0046] When the length of the barrel 100 is long, the length of the stirring member 300 is also long, but the length of a single blade 310 is limited, so a multi-section design can be adopted, that is, the number of fixed frames 350 is increased, and there are at least two fixed frames 350 and they are arranged at intervals along the length direction of the center line of the rotation of the stirring member 300. Blades 310 arranged in a ring around the center line of the rotation of the stirring member 300 are fixed between adjacent fixed frames 350, and a stirring assembly is formed between adjacent fixed frames 350. In order to keep the two adjacent stirring assemblies have better strength and will not twist during stirring, the blades 310 are staggered in the direction parallel to the center line of the rotation of the stirring member 300, that is, the blades 310 in the upper and lower stirring assemblies are staggered, for example, the blades 310 in the upper stirring assembly and the connecting rod 340 in the lower stirring assembly are on the same straight line along the center line of the rotation of the stirring member 300, and the connecting rod 340 in the upper stirring assembly and the blades 310 in the lower stirring assembly are on the same straight line along the center line of the rotation of the stirring member 300.

[0047] The connection between the blade 310 and the fixed frame 350 can be made in the same way as the connection between the blade 310 and the spoke 331. However, the grooves on the fixed frame 350 require that the fixed frame 350 has sufficient thickness, and the fixed frame 350 does not participate in stirring when the stirring member 300 is in operation. Therefore, the thickness of the fixed frame 350 needs to be as thin as possible while ensuring that the fixed frame 350 has sufficient strength. A slot 311 can be opened at the end of the blade 310, and the slot 311 is clamped on the end face of the fixed frame 350. Of course, welding or bonding can be used to further improve the fixing strength of the blade 310 and the fixed frame 350 after clamping. The opening of the slot 311 at the end of the blade 310 does not have too much impact on the strength of the blade 310, and can also fix or preliminarily fix the relative position of the blade 310 and the fixed frame 350.

[0048] On the basis of the above embodiment, a fixed shaft 110 is provided at the bottom of the barrel 100. Since the blades 310 are arranged in a ring, a cavity is formed in the middle of the ring formed by the blades 310. The fixed shaft 110 just extends into the cavity, disrupting the rotation of the liquid in the barrel 100 to form turbulence, so that the stirred materials can be mixed more evenly.

[0049] For a short barrel 100, it is only necessary to fix the top of the blade 310 on the mounting portion 330 of the stirring member 300. For stirring materials with higher viscosity, the blade 310 can be fixed at the bottom through a fixing frame 350, thereby improving the strength of the stirring member 300 at the blade 310 part. Further, a connecting rod 340 can be added between adjacent blades 310 to further improve the strength of the stirring member 300 of the blade 310 component and prevent the stirring member 300 from twisting and deforming. For a long barrel 100, two or more fixing frames 350 can be provided, and blades 310 are provided between adjacent fixing frames 350, which is equivalent to adding a stirring component. Multiple stirring components can be added as needed, but the length of the blades 310 in each stirring component does not increase. While satisfying the stirring of the long barrel 100, it can also ensure that these blades 310 will not be deformed, and the blades 310 are stirred in an ideal state to achieve the expected stirring effect. When stirring is required, the stirring member 300 is placed in the stirring chamber 120 of the barrel 100, and the stirring material is injected into the stirring chamber 120 from the upper part of the barrel 100. The stirring member 300 is driven to rotate by the driving member 200 to stir the stirring material in the stirring chamber 120 evenly, and then the stirred stirring material flows out from the outlet at the bottom of the barrel 100. With the barrel 100 of the above structure, the original single spiral blade 310 is replaced with multiple blades 310 arranged in a ring, which disperses the pressure on the single blade 310 during stirring, reduces the probability of deformation of the blade 310, and allows the blade 310 to operate in an ideal structural state.

[0050] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A dynamic mixer, comprising a barrel, a driving member and a stirring member, wherein the stirring member is located in the barrel, the stirring member is connected to the driving member, and the driving member drives the stirring member to rotate in the barrel, characterized in that: The stirring member is provided with a plurality of blades arranged in a ring around the center line of the stirring member's rotation, the blades are spiral-shaped, and the blades extend in a direction parallel to the center line of the stirring member's rotation.

2. A dynamic mixer as claimed in claim 1, characterized in that: The stirring member comprises a connecting portion connected to the driving member and a mounting portion for connecting the blades. The mounting portion is provided with spokes arranged in a ring around the center line of the stirring member's rotation, and one end of the blade is mounted on the spokes.

3. A dynamic mixer as claimed in claim 2, characterized in that: The stirring member also includes a connecting rod and an annular fixing frame. The other end of the blade is connected to the fixing frame. The connecting rod is parallel to the center line of the stirring member's rotation and is fixed between the spokes and the fixing frame.

4. A dynamic mixer as claimed in claim 3, characterized in that: The connecting rods and the blades are arranged alternately on the same circumference.

5. A dynamic mixer as claimed in claim 2, characterized in that: A fixing groove is provided on the spoke connected to the blade, the fixing groove is provided along the radial direction of the mounting portion, and one end of the blade is mounted in the fixing groove.

6. A dynamic mixer as claimed in claim 3, characterized in that: There are at least two fixed frames which are spaced apart along the length direction of the center line of rotation of the stirring member. Blades arranged in a ring around the center line of rotation of the stirring member are fixed between adjacent fixed frames. Connecting rods parallel to the center line of rotation of the stirring member are also fixed between adjacent fixed frames.

7. A dynamic mixer as claimed in claim 6, characterized in that: The blades are staggered and distributed in a direction parallel to the center line of the rotation of the stirring member.

8. A dynamic mixer as claimed in claim 3 or 6, characterized in that: The end of the blade is provided with a clamping groove, and the clamping groove is clamped on the end surface of the fixing frame.

9. A dynamic mixer as claimed in claim 1, characterized in that: A fixed shaft is provided at the bottom of the barrel, and the fixed shaft extends into the center of the annular array formed by the blades.

10. A dynamic mixer as claimed in claim 1, characterized in that: A driving shaft extending out of the barrel is provided on the top of the stirring member, and the driving member is transmission-connected to the driving shaft via a reduction box.

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