Horizontal mixer and rotor structure thereof

Abstract

The embodiment of the application provides a horizontal mixer and a rotor structure thereof, and relates to the technical field of mixing and stirring structures. The rotor structure of the horizontal mixer comprises two rotating shafts arranged side by side, the rotating shafts comprise shaft bodies and a plurality of functional structures mounted on the shaft bodies, the plurality of functional structures are sequentially arranged along the axial direction of the shaft bodies, part of the plurality of functional structures are spiral conveying pieces, and another part of the plurality of functional structures are paddle assemblies. The paddle pieces in the paddle assemblies are arranged to comprise middle disc pieces and protruding structures arranged on the middle disc pieces and protruding in the axial direction of the rotating shafts, and the protruding structures are used for kneading. The paddle pieces in the structure basically do not have axial conveying capacity, so that the residence time of materials at the paddle assemblies is longer, and the spiral conveying pieces are introduced to ensure the smooth conveying of the materials in the axial direction, thereby helping to realize efficient mixing and continuous production and meeting the mixing requirements of crystal materials or heat-sensitive materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mixing structure, in particular to a horizontal mixer and a rotor structure thereof. BACKGROUND

[0002] During the preparation of polymers, due to the particularity of the molecular chain structure, the polymers often exhibit complex rheological properties such as high viscosity and viscosity time dependence. This nonlinear rheological behavior can cause the viscosity of the system to change significantly with shear rate or time, thereby significantly affecting the flow characteristics, mixing uniformity, heat transfer, and mass transfer efficiency during the processing. Especially in the process of polymerization or melt blending, the dynamic change of the rheological properties is more obvious, making it difficult for traditional stirring and mixing equipment to meet the process requirements.

[0003] However, the existing stirring and mixing device is difficult to meet the mixing and stirring requirements of materials with rheological properties, especially for materials that require soft mixing and exhibit nonlinear rheological behavior during processing, such as crystalline materials or heat-sensitive materials. SUMMARY

[0004] The present application aims to provide a horizontal mixer and a rotor structure thereof, which can improve the above-mentioned problems in the prior art.

[0005] The embodiments of the present application can be implemented in the following ways:

[0006] A rotor structure of a horizontal mixer, the rotor structure of the horizontal mixer comprising two rotating shafts arranged side by side; the rotating shafts comprising:

[0007] a shaft body and a plurality of functional structures mounted on the shaft body, the plurality of functional structures being arranged in sequence along the axial direction of the shaft body; part of the plurality of functional structures being screw conveyors, and another part of the plurality of functional structures being paddle assemblies, and the paddle assemblies of the two rotating shafts being pinched together.

[0008] The paddle assembly comprises a plurality of paddle pieces, the paddle piece comprising a middle disc and a protruding structure arranged on one side of the middle disc along the axial direction of the rotating shaft, and the protruding structure of one rotating shaft is used to pinch the protruding structure of another rotating shaft.

[0009] Optionally, the screw conveyors and the paddle assemblies are arranged alternately along the axial direction of the shaft body.

[0010] Optionally, the plurality of functional structures comprises a first functional structure, a second functional structure, a third functional structure, a fourth functional structure and a fifth functional structure arranged along the axial direction of the shaft body in sequence, the first functional structure, the third functional structure and the fifth functional structure are screw conveying members; the second functional structure and the fourth functional structure are the paddle assemblies.

[0011] Optionally, the first functional structure adopts a single helical conveying structure; the third functional structure and the fifth functional structure adopt a double helical conveying structure.

[0012] The paddle member is a pear-shaped paddle member, which has a support disc as the intermediate disc and a kneading rod forming the protruding structure, the support disc is polygonal, and the plurality of kneading rods are respectively installed on a plurality of corners of the polygon; the kneading rod on one rotating shaft is used for kneading with the kneading rod on another rotating shaft.

[0013] Optionally, the kneading rod comprises a first rod segment, a second rod segment and a third rod segment, the first rod segment and the third rod segment are connected at two ends of the second rod segment and form a U-shaped structure; the second rod segment is fixedly connected at the corner, and the first rod segment and the third rod segment are respectively located on two sides of the support disc along the axial direction of the shaft body, and the first rod segment and the third rod segment extend towards the center of the support disc.

[0014] Optionally, the corner of the support disc has a first side and a second side; the end of the first side at the corner has a first center distance from the center of the support disc, the end of the second side at the corner has a second center distance from the center of the support disc, the first center distance is smaller than the second center distance, and a connecting portion arranged in a direction outward from the center of the support disc is formed between the first side and the second side; the side surface of the second rod segment is fixedly connected at the connecting portion.

[0015] Optionally, the paddle member is a cylindrical paddle member, which comprises two blade members, the blade member has an elliptical disc as the intermediate disc and a kneading protrusion forming the protruding structure, the protrusion is arranged at both ends of the major axis of the elliptical disc and protrudes along the axial direction of the rotating shaft; the two blade members in the cylindrical paddle member are orthogonally distributed, and the protruding directions of the kneading protrusions are opposite; the kneading protrusion on the cylindrical paddle member on one rotating shaft is used for kneading with the kneading protrusion on the cylindrical paddle member on another rotating shaft.

[0016] Optionally, the paddle assembly comprises a paddle segment and a screw segment, the paddle segment comprises a plurality of paddle members arranged in sequence, and the screw segment is arranged between two adjacent paddle segments.

[0017] A horizontal mixer comprising a rotor structure of the horizontal mixer as described above.

[0018] The horizontal mixer and the rotor structure thereof provided by the embodiments of the present application have the following beneficial effects:

[0019] The rotor structure of the horizontal mixer provided by the embodiments of the present application realizes material stirring and conveying through the joint action of two rotating shafts arranged side by side. A plurality of functional structures are mounted on the shaft body of the rotating shaft, the plurality of functional structures are arranged in sequence along the axial direction of the shaft body, and part of the plurality of functional structures are spiral conveying pieces, and another part of the plurality of functional structures are paddle assemblies, and the paddle assemblies of the two rotating shafts arranged side by side are kneaded with each other. The structure retains the paddle structure in the kneading reactor, on the one hand, the paddle piece basically has no axial conveying capacity, so that the residence time of the material at the paddle assembly can be prolonged, and good mixing effect is ensured, on the other hand, the paddle piece is kneaded through the protruding structure, so that the kneading effect of the paddle assembly does not need to be realized through the intermediate disc, the free gap formed between the intermediate discs of the two paddle pieces kneaded with each other in the two rotating shafts can be set larger, so that the volume exchange in the material mixing process can be facilitated, the effect of distribution mixing is improved, the damage to the material is smaller under the condition of ensuring the mixing effect, the mixing is more gentle, and it is more suitable for the mixing of crystal materials or heat-sensitive materials, and at the same time, the axial conveying capacity is ensured through the spiral conveying piece, so that continuous mixing can be realized, thereby helping to realize efficient mixing and continuous production of the rotor structure, and meeting the mixing and reaction requirements of high-viscosity materials.

[0020] The embodiments of the present application also provide a horizontal mixer with the rotor structure of the horizontal mixer as described above, and therefore also have the beneficial effects of having the advantages of efficient mixing, gentle mixing and continuous production, and meeting the mixing and reaction requirements of high-viscosity materials. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above features and advantages of the present application can be better understood by reading the detailed description of embodiments of the present application in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar related properties or features can have the same or similar reference numbers.

[0022] Figure 1 A structural schematic view of the rotor structure provided by the embodiments of the present application for one aspect;

[0023] Figure 2 A structural schematic view of the rotor structure provided by the embodiments of the present application for one aspect from another perspective;

[0024] Figure 3Structure diagram of single helix conveying structure in rotor structure provided by the embodiment of the present application;

[0025] Figure 4 Structure diagram of double helix conveying structure in rotor structure provided by the embodiment of the present application;

[0026] Figure 5 Structure diagram of pear-shaped paddle piece in rotor structure provided by the embodiment of the present application;

[0027] Figure 6 Structure diagram of kneading structure of pear-shaped paddle piece in rotor structure provided by the embodiment of the present application;

[0028] Figure 7 Structure diagram of kneading structure of pear-shaped paddle piece in rotor structure provided by the embodiment of the present application from another perspective;

[0029] Figure 8 Structure diagram of rotor structure provided by the embodiment two of the present application;

[0030] Figure 9 Structure diagram of paddle piece in rotor structure provided by the embodiment two of the present application;

[0031] Figure 10 Structure diagram of kneading structure of paddle piece in rotor structure provided by the embodiment two of the present application;

[0032] Figure 11 Structure diagram of kneading structure of paddle piece in rotor structure provided by the embodiment two of the present application from another perspective.

[0033] Reference signs:

[0034] 10 - rotor structure; 100 - rotating shaft; 111 - first rotating shaft; 112 - second rotating shaft; 120 - shaft body; 130 - functional structure; 131 - first functional structure; 132 - second functional structure; 133 - third functional structure; 134 - fourth functional structure; 135 - fifth functional structure; 140 - helix conveying piece; 141 - helix rib body; 150 - paddle assembly; 151 - helix section; 152 - paddle section; 153 - pear-shaped paddle piece; 1531 - support disc; 1532 - first edge; 1533 - second edge; 1535 - connecting part; 1536 - kneading rod; 1537 - first rod section; 1538 - second rod section; 1539 - third rod section; 154 - cylindrical paddle piece; 1541 - first blade piece; 1542 - second blade piece; 1543 - elliptical disc piece; 1544 - kneading protrusion. DETAILED DESCRIPTION

[0035] The present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are merely exemplary and should not be understood as limiting the scope of protection of the present application in any way.

[0036] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer", "vertical" and the like are used to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product of the present application is used, and does not indicate or imply that the device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0037] At the same time, it should be noted that if the terms "first", "second" and the like are used, they are only used for differentiation and should not be understood as indicating or implying relative importance.

[0038] In the description of the present application, it should also be noted that unless otherwise explicitly specified or limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, integrally connected, or detachably connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or communication between two elements, etc. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Embodiment 1

[0040] Figure 1 A structural schematic diagram of the rotor structure 10 provided for this embodiment is shown in Figure 2 A structural schematic diagram of the rotor structure 10 provided for this embodiment is shown in Figure 1 and Figure 2 The present embodiment provides a rotor structure 10 of a horizontal mixer, referred to as rotor structure 10 for short, and also provides a horizontal mixer (not shown in the figure).

[0041] The horizontal mixer contains the rotor structure 10, and the horizontal mixer also has a mixing chamber and the like, and the rotor structure 10 is installed in the mixing chamber to stir and mix the materials in the mixing chamber. Moreover, in the present embodiment, the two rotating shafts 100 contained in the rotor structure 10 are arranged horizontally and side by side.

[0042] The rotor structure 10 includes two rotating shafts 100, which are respectively a first rotating shaft 111 and a second rotating shaft 112. The structure of the first rotating shaft 111 is basically the same as that of the second rotating shaft 112, and the structure of the first rotating shaft and the second rotating shaft 112 will not be described separately in the following.

[0043] The rotating shaft 100 comprises a shaft body 120 and a plurality of functional structures 130 mounted on the shaft body 120, the plurality of functional structures 130 are sequentially arranged along the axial direction of the shaft body 120 and play a mixing function through the functional structures 130. Part of the plurality of functional structures 130 is a spiral conveying piece 140, which can convey materials along the axial direction of the rotating shaft 100 through the spiral conveying piece, thereby having high conveying capacity; the rest of the plurality of functional structures 130 is a paddle assembly 150, and the paddle assemblies 150 of the two rotating shafts 100 are mutually kneaded, that is, the paddle assembly 150 of the first rotating shaft 111 is mutually kneaded with the paddle assembly 150 of the second rotating shaft 112, thereby forming a kneading and stirring mixing structure, and the paddle assembly 150 comprises a plurality of paddle pieces, which are arranged to include a middle disc and a protruding structure protruding along the axial direction of the rotating shaft 100, and the protruding structure is used for kneading, thereby providing shearing and dispersion mixing effects, so as to have excellent mixing performance.

[0044] The rotor structure 10 provided in the embodiment will be further described as follows:

[0045] Please continue to refer to Figure 1 and Figure 2 In the embodiment, the functional structure 130 can be fixedly connected with the shaft body 120 in the form of a flat key or a spline, which is convenient for disassembly and assembly. Specifically, the center of the functional structure 130 is provided with a through hole for the shaft body 120 to pass through, and in the embodiment, a spline (as mentioned later in Figures 3-5 ) is arranged in the through hole. Correspondingly, a spline structure matched with the spline is arranged on the shaft body, that is, in the embodiment, the functional structure 130 is fixedly connected with the shaft body 120 in the circumferential direction through the cooperation of the spline in the functional structure 130 and the spline on the shaft body. The spiral conveying piece 140 and the paddle assembly 150 are alternately arranged along the axial direction of the shaft body 120, so that the spiral conveying piece 140 can continuously convey materials to the paddle assembly 150 along the axial direction, and then the paddle assembly 150 can efficiently mix the conveyed materials.

[0046] Alternatively, in the embodiment, the number of functional structures 130 is five, which are a first functional structure 131, a second functional structure 132, a third functional structure 133, a fourth functional structure 134 and a fifth functional structure 135. Among them, the first functional structure 131, the third functional structure 133 and the fifth functional structure 135 are spiral conveying pieces 140, and the second functional structure 132 and the fourth functional structure 134 are paddle assemblies 150. It should be noted that the number of functional structures 130 on the rotating shaft 100 is not limited here, and it can be understood that in other embodiments, the number of functional structures 130 and the combination form thereof on the shaft body 120 can also be set according to requirements.

[0047] Specifically, the screw conveying member 140 is a shaft segment component with a screw ridge 141, which forms a helical path extending around the axial direction, so as to realize axial conveying of the material along the helical path when the screw conveying member 140 rotates. The paddle assembly 150 comprises a plurality of paddle members arranged in sequence along the axial direction, and the paddle members are intermeshed with the paddle members on the other rotating shaft 100.

[0048] Further, in the embodiment, the paddle assembly 150 further comprises a screw segment 151, and the plurality of paddle members in the paddle assembly 150 are arranged in sequence to form paddle segments 152, and the screw segment 151 is arranged between the adjacent two paddle segments 152. Specifically, the screw segment 151 is a shaft segment structure with a screw ridge 141, which is arranged between the adjacent two paddle segments 152. Since the paddle members basically have no axial conveying capacity, by arranging a small screw segment 151 between the adjacent two paddle segments 152, the conveying capacity at the paddle assembly 150 can be improved, and the excessive accumulation of the material at the paddle assembly 150 can be avoided.

[0049] Optionally, the screw segment 151 adopts a double helical conveying structure, and the specific structure of the double helical conveying structure will be described below. Optionally, the screw angle of the screw ridge 141 in the screw segment 151 is 180°.

[0050] Figure 3 A structure schematic diagram of a single helical conveying structure in the rotor structure 10 provided by the embodiment is shown. Please refer to Figures 1-3 Optionally, in the embodiment, the first function structure 131 is used as a feeding segment, and the axial conveying and feeding of the material from the first function structure 131 to the second function structure 132 are realized. Specifically, the first function structure 131 adopts a single helical conveying structure, that is, the first function structure 131 only has a screw ridge 141 arranged around the axial direction. The single helical conveying structure can provide higher solid conveying capacity, and since the screw ridge is thicker, the leakage of the material through the screw ridge can be prevented, so that the backtracking length of the pumped melt is shortened. In this way, the first function structure 131 can smoothly and more adaptively add the material.

[0051] Figure 4 A structure schematic diagram of a double helical conveying structure in the rotor structure 10 provided by the embodiment is shown. Please refer to Figures 1-4Optionally, in the embodiment, the third functional structure 133 is used as a conveying section for axial conveying of the material; and the fifth functional structure 135 is used as an extruding section for outputting the mixed material. Specifically, the third functional structure 133 and the fifth functional structure 135 adopt a double helix conveying structure, i.e., the third functional structure 133 and the fifth functional structure 135 have two helix prisms 141 arranged helically around the axis, the two helix prisms 141 have the same helix direction and a phase angle difference of 180°. The double helix conveying structure has a stronger axial conveying effect, and the third functional structure 133 and the fifth functional structure 135 arranged as the double helix conveying structure have a short residence time of the material and a good self-cleaning property when conveying the material in the seat conveying section.

[0052] Optionally, the third functional structure 133 and the fifth functional structure 135 are conveying elements with a self-sweeping spiral groove shape designed according to the relative motion principle, the helix prisms are narrow, the spiral grooves are wide, the longitudinal direction is open and the transverse direction is closed, and the conveying elements have a strong conveying capacity. When the material passes through the conveying elements, the material is conveyed along a spiral "∞" shaped channel, has a short residence time, and has a good self-cleaning property.

[0053] Figure 5 Fig. 6 shows a structure schematic diagram of the pear-shaped paddle piece 153 in the rotor structure 10 provided in the embodiment, Figure 6 Fig. 7 shows a kneading structure schematic diagram of the pear-shaped paddle piece 153 in the rotor structure 10 provided in the embodiment, Figure 7 Fig. 8 shows a kneading structure schematic diagram of the pear-shaped paddle piece 153 in the rotor structure 10 provided in the embodiment from another perspective. Please refer to Figures 1-7 In the embodiment, the second functional structure 132 and the fourth functional structure 134 are used as mixing sections, and the material mixing is realized through the second functional structure 132 and the fourth functional structure 134.

[0054] The paddle assembly 150 contains the pear-shaped paddle piece 153, i.e., in the embodiment, the paddle assembly 150 contains a plurality of pear-shaped paddle pieces 153. The pear-shaped paddle pieces 153 on the same rotating shaft 100 are arranged equidistantly in the axial direction, and the adjacent pear-shaped paddle pieces 153 on different rotating shafts 100 are arranged in parallel and staggered in the axial direction, so that the adjacent pear-shaped paddle pieces 153 on different rotating shafts 100 form a pair of kneading paddle assemblies. In the case of rotation of the two rotating shafts 100, the pear-shaped paddle pieces 153 on the first rotating shaft 111 and the pear-shaped paddle pieces 153 on the second rotating shaft 112 are kneaded with each other.

[0055] The pear-shaped paddle member 153 comprises a support disc 1531 as an intermediate disc and a plurality of kneading bars 1536 forming a convex structure, and the plurality of kneading bars 1536 are installed on the support disc 1531. The support disc 1531 is polygonal, and the plurality of kneading bars 1536 are respectively installed on the plurality of corners of the polygon. Meanwhile, the kneading bars 1536 on one rotating shaft 100 are used for kneading with the kneading bars 1536 on the other rotating shaft, i.e., the kneading bars 1536 on the first rotating shaft 111 are used for kneading with the kneading bars 1536 on the second rotating shaft, so as to realize the mutual kneading of the paddle assemblies 150 on the two rotating shafts 100. When the rotating shaft 100 rotates, the material is transported to the mixing section in the axial direction under the action of the screw structure, and when the material enters the mixing section in the axial direction, most of the material is hindered by the support disc 1531 and is forced to stop advancing in the axial direction, and along with the rotation of the rotating shaft 100, the part of the material moves to the kneading bar 1536 and is subjected to the action of the kneading bar 1536 to perform stretching, shearing, dispersion and depolymerization, and the material which is not hindered by the current support disc 1531 will be subjected to the blocking of the support disc 1531 when moving into the next paddle assembly area in the axial direction, thereby performing stretching, shearing, dispersion and depolymerization, having good dispersion and depolymerization effects, and because the free gap between the intermediate discs of the two adjacent paddle members on the two rotating shafts 100 is large, the volume exchange in the material mixing process can be facilitated, the distribution mixing effect is improved, the damage to the material is small, and the mixing is relatively gentle. During operation, the kneading bars 1536 can scrape each other and are closely arranged on the wall surface of the mixing cavity of the mixer, so that not only the material can be fully mixed, but also the residual material adhered to the kneading parts, the inner wall of the cylinder and the surface of the rotating shaft 100 can be continuously peeled off to realize self-cleaning.

[0056] Specifically, in the embodiment, the support disc 1531 is quadrangular, and correspondingly, each pear-shaped paddle member 153 comprises four kneading bars 1536, and the four kneading bars 1536 are respectively arranged on the four corners of the support disc 1531. It can be understood that in some other embodiments, the specific structure of the pear-shaped paddle member 153 can also be specifically arranged, for example, the support disc 1531 is arranged as a triangular shape, etc. A through hole for the shaft body 120 to pass through is arranged at the center of the support disc 1531, and the central axis of the support disc 1531 can be regarded as the axis of the rotating shaft 100.

[0057] Optionally, the kneading bar 1536 comprises a first bar section 1537, a second bar section 1538 and a third bar section 1539, the first bar section 1537 and the third bar section 1539 are respectively connected to the two ends of the second bar section 1538 and form a U-shaped structure. The second bar section 1538 is fixedly connected to the corner of the support disc 1531, the first bar section 1537 and the third bar section 1539 are respectively located on the two sides of the support disc 1531 in the axial direction of the shaft body 120, and the first bar section 1537 and the third bar section 1539 extend towards the center of the support disc 1531.

[0058] Specifically, the first rod segment 1537, the second rod segment 1538 and the third rod segment 1539 are all strip-shaped rod members. The end of the first rod segment 1537 is fixedly connected with the end of the second rod segment 1538, and the first rod segment 1537 is arranged perpendicularly to the second rod segment 1538; the end of the third rod segment 1539 is fixedly connected with the end of the second rod segment 1538, and the third rod segment 1539 is arranged perpendicularly to the second rod segment 1538, thus forming a U-shaped structure member. The first rod segment 1537, the second rod segment 1538 and the third rod segment 1539 are of an integral structure.

[0059] The length direction of the second rod segment 1538 extends along the thickness direction of the support disc 1531, and when the support disc 1531 is installed on the shaft body 120, the thickness direction of the support disc 1531 is the same as the axial direction of the shaft body 120, i.e. in the rotating shaft 100, the second rod segment 1538 extends along the axial direction of the shaft body 120. The first rod segment 1537 and the third rod segment 1539 are located on both sides of the thickness direction of the support disc 1531, and the first rod segment 1537 extends towards the center of the support disc 1531, thus forming a first kneading gap between the first rod segment 1537 and one side of the support disc 1531, which kneads with one pear-shaped paddle member 153 on the other rotating shaft 100; the third rod segment 1539 extends towards the center of the support disc 1531, thus forming a second kneading gap between the third rod segment 1539 and the other side of the support disc 1531, which kneads with another pear-shaped paddle member 153 on the other rotating shaft 100; i.e. the first kneading gap and the second kneading gap knead with the two adjacent pear-shaped paddle members 153 on the other rotating shaft 100.

[0060] Further, the corner of the support disc 1531 has a first edge 1532 and a second edge 1533, the end of the first edge 1532 at the corner has a first center distance from the center of the support disc 1531, the second edge 1533 at the corner has a second center distance from the center of the support disc 1531, the first center distance is smaller than the second center distance, and a connecting portion 1535 arranged in the direction outward from the center of the support disc 1531 is formed between the first edge 1532 and the second edge 1533, and the side edge of the second rod segment 1538 is fixedly connected at the connecting portion 1535. Optionally, the support disc 1531 and the kneading rod 1536 are of an integral structure.

[0061] Specifically, the support disc 1531 is substantially quadrangular, and has four main sides, two of which are the first side 1532 and the second side 1533. The first side 1532 has a first center distance at the corner smaller than a second center distance of the second side 1533 at the corner, in other words, the first side 1532 is closer to the center of the support disc 1531 than the second side 1533. The side surface of the second rod segment 1538 is fixedly connected with the connecting part 1535.

[0062] Embodiment 2

[0063] Figure 8 Fig. 1 shows a structural schematic diagram of a rotor structure 10 provided by the embodiment, Figure 9 Fig. 2 shows a structural schematic diagram of a paddle piece in the rotor structure 10 provided by the embodiment, Figure 10 Fig. 3 shows a schematic diagram of a kneading structure of a paddle piece in the rotor structure 10 provided by the embodiment, Figure 11 Fig. 4 shows a schematic diagram of a kneading structure of a paddle piece in the rotor structure 10 provided by the embodiment from another perspective. Please refer to Figures 8-11 The embodiment also provides a rotor structure 10, which is basically the same as the rotor structure 10 provided by the embodiment 1, and the same parts will not be described again. The difference is that the structure of the paddle piece is different.

[0064] Specifically, in the embodiment, the paddle piece is a cylindrical paddle piece 154, that is, the rotor structure 10 provided by the embodiment includes a plurality of cylindrical paddle pieces 154. The cylindrical paddle piece 154 includes two blade pieces, which are a first blade piece 1541 and a second blade piece 1542, and the first blade piece 1541 and the second blade piece 1542 are arranged in the axial direction of the rotating shaft 100. The blade piece has an elliptical disc 1543 as an intermediate disc and a kneading protrusion 1544 forming a protruding structure, the kneading protrusion 1544 is arranged at both ends of the major axis of the elliptical disc 1543 and protrudes in the axial direction of the rotating shaft 100. The two blade pieces are orthogonally distributed, that is, the major axis direction of the elliptical disc 1543 in the first blade piece 1541 and the major axis direction of the elliptical disc 1543 in the second blade piece 1542 are perpendicular to each other. The protrusions of the kneading protrusions 1544 of the two blade pieces face each other, specifically, the kneading protrusion 1544 in the first blade piece 1541 protrudes in the direction of the second blade piece 1542, and the kneading protrusion 1544 in the second blade piece 1542 protrudes in the direction of the first blade piece 1541. In this way, the kneading protrusion 1544 on the cylindrical paddle piece 154 on the rotating shaft 100 is used for kneading with the kneading protrusion 1544 on the cylindrical paddle piece 154 on another rotating shaft 100.

[0065] Specifically, the kneading protrusions 1544 in the blade piece are arranged at both ends of the long axis direction of the elliptical disc 1543, so that the cross section of a single blade piece is in the shape of "[", i.e., an opening is formed on one side of the blade piece, the opening of the first blade piece 1541 faces the second blade piece 1542, and the opening of the second blade piece 1542 faces the first blade piece 1541. The cylindrical paddle pieces 154 on the rotating shaft 100 are mutually kneaded and arranged in the same axial direction, the first blade piece 1541 on the first rotating shaft 111 is kneaded with the second blade piece 1542 on the second rotating shaft 112, and the second blade piece 1542 on the first rotating shaft 111 is kneaded with the second blade piece 1542 on the first rotating shaft 111.

[0066] When the rotating shaft 100 rotates, most of the material transported into the paddle assembly 150 is hindered by the elliptical disc 1543 and is forced to stop advancing axially, and with the rotation of the rotating shaft 100, this part of the material moves to the kneading protrusions 1544 and is acted on by the mutually kneaded kneading protrusions 1544, thereby being stretched, sheared, dispersed, and depolymerized. Moreover, due to the large free gap between the intermediate discs of two adjacent paddle pieces on the two rotating shafts 100, the volume exchange during the mixing of the material can be facilitated, the effect of distributive mixing is improved, the damage to the material is small, and the mixing is relatively gentle; another part of the material that is not hindered by the current elliptical disc 1543 continues to move axially and enters the next cylindrical paddle piece 154, thereby being hindered by the elliptical disc 1543 and being stretched, sheared, dispersed, and depolymerized. Moreover, during operation, the kneading protrusions 1544 can be scraped against each other and closely arranged against the wall surface of the mixing chamber of the mixer, so that not only can the material be fully mixed, but also the stagnant material adhering to the kneading components, the inner wall of the cylinder, and the surface of the rotating shaft 100 can be continuously peeled off, achieving self-cleaning.

[0067] The above merely describes specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements easily thought of by those skilled in the art within the technical scope disclosed by the present application should be encompassed within the protection scope of the present application.

Claims

1. A rotor structure for a horizontal mixer, characterized by The rotor structure of the horizontal mixer comprises two rotating shafts arranged side by side; the rotating shafts comprise: a shaft body and a plurality of functional structures mounted on the shaft body, the plurality of functional structures are arranged in sequence along the axial direction of the shaft body; part of the plurality of functional structures are screw conveying members, another part of the plurality of functional structures are paddle assemblies, and the paddle assemblies of the two rotating shafts are mutually pinched; wherein the paddle assembly comprises a plurality of paddle members, the paddle member comprises a middle disc and a protruding structure arranged on one side of the middle disc along the axial direction of the rotating shaft, and the protruding structure of one rotating shaft is used for pinching with the protruding structure of another rotating shaft; the paddle member is a pear-shaped paddle member, the pear-shaped paddle member has a support disc as the middle disc and a pinching rod forming the protruding structure, the support disc is polygonal, and the plurality of pinching rods are respectively mounted on a plurality of corners of the polygon; the pinching rod on one rotating shaft is used for pinching with the pinching rod on another rotating shaft; the pinching rod comprises a first rod segment, a second rod segment and a third rod segment, the first rod segment and the third rod segment are connected at both ends of the second rod segment and form a U-shaped structure; the second rod segment is fixedly connected at the corner, and the first rod segment and the third rod segment are respectively located on both sides of the support disc along the axial direction of the shaft body, and the first rod segment and the third rod segment extend towards the center of the support disc; the corner of the support disc has a first side and a second side; the end of the first side at the corner has a first center distance from the center of the support disc, the end of the second side at the corner has a second center distance from the center of the support disc, the first center distance is smaller than the second center distance, and a connecting portion arranged in a direction outward from the center of the support disc is formed between the first side and the second side; the side surface of the second rod segment is fixedly connected at the connecting portion.

2. The rotor structure of the horizontal mixer according to claim 1, wherein the screw conveying members and the paddle assemblies are alternately arranged along the axial direction of the shaft body.

3. The rotor structure of the horizontal mixer according to claim 2, wherein the plurality of functional structures comprise a first functional structure, a second functional structure, a third functional structure, a fourth functional structure and a fifth functional structure arranged in sequence along the axial direction of the shaft body, the first functional structure, the third functional structure and the fifth functional structure are screw conveying members; and the second functional structure and the fourth functional structure are the paddle assemblies.

4. The rotor structure of the horizontal mixer according to claim 3, wherein the first functional structure adopts a single screw conveying structure; and the third functional structure and the fifth functional structure adopt a double screw conveying structure.

5. The rotor structure of the horizontal mixer according to claim 1, wherein the paddle assembly comprises a paddle segment and a screw segment, the paddle segment comprises a plurality of paddle members arranged in sequence, and the screw segment is arranged between adjacent two paddle segments.

6. A horizontal mixer, comprising The horizontal mixer comprises a rotor structure of the horizontal mixer as claimed in any of claims 1 to 5.

Images