Mixing machine
By designing a horizontal structure dual-rotary shaft mixer and using a specially designed mixing paddle, the existing mixer has solved the problems of small processing volume, slow speed and uneven mixing, and achieved efficient and uniform material mixing, which is suitable for large-scale production.
Patent Information
- Application Number
- CN202421553036.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-02
AI Technical Summary
Most of the existing large mixers are vertical structures, with limited material processing capacity and are not suitable for large-scale production. The processing speed is slow and the mixed materials are not uniform enough.
A horizontal mixer is designed, adopting a dual-rotating shaft structure, the first and second rotating shafts are parallel to each other, and has multiple inlet and outlet ports. Through a specially designed mixing paddle, including blades that are evenly distributed in circumference, the angle between the blades is a specific angle, and the stirring method is optimized.
It realizes rapid and even mixing different materials together, suitable for large-scale production, with a processing volume greater than that of vertical structures, and has good start-up performance and overload protection.
Smart Images
Figure CN222766052U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material mixing equipment, in particular to a mixer. Background Art
[0002] A mixer is a mechanical device that uses mechanical force and gravity to evenly mix two or more materials. During the mixing process, the contact surface area of the materials can be increased to promote chemical reactions and accelerate physical changes. Large mixers can mix several granular materials ≤80mm in a certain proportion and then enter the next process or load them for transportation elsewhere. It is often used for mixing pulverized coal in coking plants and thermal power plants; mixing sludge to produce organic fertilizer; mixing materials in dust removal systems or ash storage systems in thermal power plants, etc.
[0003] However, most existing large-scale mixers are vertical structures with limited material processing capacity and are not suitable for large-scale production; moreover, the processing speed is slow and the mixed materials are not uniform enough. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a mixer, which can process a large amount of materials, is suitable for large-scale production, and can quickly and evenly mix different materials together.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A mixer comprises a driving device, a first rotating shaft, a second rotating shaft, a first mixing paddle, a second mixing paddle and a casing; the first rotating shaft and the second rotating shaft are parallel to each other, and the axes are horizontally installed in the casing, and a plurality of feeding ports are provided at the top of one end of the casing along the axis, and a discharging port is provided at the bottom of the other end; the driving device is connected with the first rotating shaft and the second rotating shaft, and drives the first rotating shaft and the second rotating shaft to rotate in opposite directions; a plurality of the first mixing paddles are evenly distributed on the first rotating shaft along the axis of the first rotating shaft, a plurality of the second mixing paddles are evenly distributed on the second rotating shaft along the axis of the second rotating shaft, and the first mixing paddle and the second mixing paddle are alternately arranged along the axis direction; the first mixing paddle comprises N blades evenly distributed around the circumference, N≥4, and the angle between adjacent blades is 360° / N, the second mixing paddle comprises N blades evenly distributed around the circumference, N≥4, and the angle between adjacent blades is 360° / N, and the angle between adjacent blades of the first mixing paddle and the second mixing paddle is 360° / 2N.
[0007] Furthermore, the first mixing paddle includes four blades evenly distributed around the circumference, and the angle between adjacent blades is 90°; the second mixing paddle includes four blades evenly distributed around the circumference, and the angle between adjacent blades is 90°; the angle between adjacent blades of the first mixing paddle and the second mixing paddle is 45°.
[0008] Furthermore, the blades are fan-shaped.
[0009] Furthermore, the driving device includes a motor, a reducer and a reduction box; the motor and the reducer are belt-driven, the reducer is connected to the input shaft of the reduction box through a coupling, and the reduction box is provided with two output shafts, which are respectively connected to the first rotating shaft and the second rotating shaft.
[0010] Furthermore, the reduction gearbox is a synchronous reduction gearbox, and the two output shafts operate synchronously.
[0011] Furthermore, a coupler is provided between the motor and the reducer.
[0012] Furthermore, the coupling is a drum gear coupling.
[0013] Furthermore, the reduction box adopts herringbone gears.
[0014] Furthermore, the blades are fixedly connected to a base, and the base is fixedly connected to the first and second rotating shafts.
[0015] Furthermore, the bottom of the casing is ω-shaped.
[0016] Compared with the existing technology, the beneficial effects of the utility model are:
[0017] 1. The first rotating shaft and the second rotating shaft of the utility model are parallel to each other, and the axis is installed horizontally in the casing. A plurality of inlets are arranged at the top of one end of the casing along the axial direction, and a discharge port is arranged at the bottom of the other end. The utility model is a horizontal structure. Under the same specifications, the processing capacity of the horizontal structure is greater than that of the vertical structure. The utility model can process a large amount of materials and is suitable for large-scale production.
[0018] The first rotating shaft and the second rotating shaft of the utility model rotate in opposite directions, and the first mixing paddle and the second mixing paddle are alternately arranged along the axis direction; the first mixing paddle includes N blades evenly distributed around the circumference, N≥4, and the angle between adjacent blades is 360° / N, and the second mixing paddle includes N blades evenly distributed around the circumference, N≥4, and the angle between adjacent blades is 360° / N, and the angle between adjacent blades of the first mixing paddle and the second mixing paddle is 360° / 2N. The specially designed shape and arrangement of the mixing paddle optimize the stirring method, thereby enabling different materials to be mixed together quickly and evenly.
[0019] 2. The bottom of the casing of the utility model is ω-shaped, which has excellent yield force, and the supporting parts can also make the casing have sufficient rigidity to ensure the parallelism of the double horizontal shafts and the coaxiality of the single shaft.
[0020] 3. The utility model is provided with a coupler, which can enable the mixer to start under load in the event of an accident with material in the casing, thereby improving its starting performance, and providing good overload protection for the motor and the mixer, and reducing the impact and torsional vibration of the driving device.
[0021] 4. The utility model adopts a drum gear coupling to ensure that the reducer and the reduction box run synchronously and smoothly, prevent slight vibration, determine the positions of the two stirring shafts, and prevent the stirring blades from colliding with each other and causing mechanical damage.
[0022] 5. The utility model adopts a herringbone gear reducer, which has high torque transmission capacity, high stability and high load-bearing capacity, low noise operation and high efficiency. It can realize bidirectional operation and has good reversibility. When the mixer is blocked, it can be reversed to clear the blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic top view of the structure of the utility model.
[0024] Figure 2 It is a front view showing the structure of the utility model.
[0025] Figure 3 for Figure 2 BB cross-sectional view.
[0026] Figure 4 It is a schematic side view of the mixing part structure of the utility model.
[0027] Figure 5 It is a schematic top view of the mixing part structure of the utility model.
[0028] Figure 6 for Figure 5 AA section view.
[0029] Figure 7 It is a schematic top view of the structure of the driving device of the utility model.
[0030] In the figure: 1-driving device 11-motor 12-main pulley 13-driven pulley 14-reducer 15-drum gear coupling 16-synchronous reduction box 2-first rotating shaft 3-second rotating shaft 4-first mixing paddle 41-blade 42-base 5-second mixing paddle 6-casing 7-bearing seat 8-base 9-feeding port 10-discharging port DETAILED DESCRIPTION
[0031] The embodiments of the present invention are described in detail below. In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" 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 referred device or element 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.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] In the description of the utility model, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0035] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0037] Example:
[0038] like Figure 1-7 As shown, a mixer includes a driving device 1, a first rotating shaft 2, a second rotating shaft 3, a first mixing paddle 4, a second mixing paddle 5 and a casing 6.
[0039] The first rotating shaft 2 and the second rotating shaft 3 are both horizontally arranged, the axial directions of the first rotating shaft 2 and the second rotating shaft 3 are parallel to each other, the main parts of the first rotating shaft 2 and the second rotating shaft 3 are installed in the casing 6, the shaft heads at both ends extend out of the casing 6, the shaft heads at both ends are installed on bearings, the bearings are installed in the bearing seat 7, and the bearing seat 7 is installed on the machine base 8. The bearing adopts a self-aligning roller bearing plus a thrust bearing, which is mainly used to support and position the stirring shaft for better transmission.
[0040] Two inlets 9 are arranged at the top of the right end of the casing 6 along the axial direction, and a discharge port 10 is arranged at the bottom of the left end. The shell of the casing 6 is a @-shaped barrel made of high-quality carbon steel plate + stainless steel liner, and the bottom of the shell is ω-shaped, which has excellent yield force, and the supporting part can also make the shell have sufficient rigidity to ensure the parallelism of the double horizontal shafts and the coaxiality of the single shaft.
[0041] The driving device 1 is connected to the first rotating shaft 2 and the second rotating shaft 3 to drive the first rotating shaft 2 and the second rotating shaft 3 to rotate synchronously in opposite directions.
[0042] The first mixing paddles 4 are installed on the first rotating shaft 2 at equal intervals along the axis of the first rotating shaft 2, and the second mixing paddles 5 are installed on the second rotating shaft 3 at equal intervals along the axis of the second rotating shaft 3. The first mixing paddles 4 and the second mixing paddles 5 are alternately arranged along the axial direction.
[0043] In this embodiment, the first mixing paddle 4 includes four blades 41 evenly distributed around the circumference, and the angle between adjacent blades 41 is 90°. The second mixing paddle includes four blades 41 evenly distributed around the circumference, and the angle between adjacent blades 41 is 90°. The angle between adjacent blades of the first mixing paddle 4 and the second mixing paddle 5 is 45°.
[0044] The blade 41 is fan-shaped and is made of high manganese steel after heat treatment. The blade 41 is riveted on the base 42, and the base 42 is welded on the rotating shaft. The base 42 is welded on the rotating shaft at a certain angle in the circumferential direction.
[0045] The driving device 1 includes a motor 11 , a driving pulley 12 , a driven pulley 12 , a hydraulic coupling 13 , a reducer 14 , a drum gear coupling 15 and a synchronous reduction box 16 .
[0046] The driving pulley 11 is mounted on the output shaft of the motor 11, and the driven pulley 12 is mounted on the input shaft of the reducer 14. The motor 11 drives the reducer 14 to rotate through the belt. A hydraulic coupler 13 is provided between the motor 11 and the reducer 14. The torque-limiting hydraulic coupler can enable the mixer to start with load in the event of an accident in which there is material in the housing of the casing 6, improve its starting performance, and provide good overload protection for the motor 11 and the mixer, as well as reduce the impact and torsional vibration of the driving device.
[0047] The reducer 14 is connected to the input shaft of the synchronous reduction box 16 through the drum gear coupling 15. The synchronous reduction box 16 has two output shafts, which are respectively connected to the first rotating shaft 2 and the second rotating shaft 3. The motor 11 drives the first rotating shaft 2 and the second rotating shaft 3 to rotate synchronously in opposite directions.
[0048] The drum gear coupling 15 can ensure the synchronous and stable operation of the two reducers, prevent slight vibrations, determine the positions of the two stirring shafts, and prevent the stirring blades from colliding with each other and causing mechanical damage.
[0049] The synchronous reduction box 16 adopts a herringbone gear reducer, which outputs two stirring shafts at the same time to maintain stable synchronization. Its main features are as follows:
[0050] ① High torque transmission capacity: The design of herringbone gears enables them to transmit larger torque.
[0051] ② Stability and load-bearing capacity: The structure of herringbone gears is relatively strong and can withstand large radial and axial loads.
[0052] ③Low noise operation: Compared with other types of gear reducers, herringbone gear reducers usually produce lower noise during operation.
[0053] ④High efficiency: The meshing method of herringbone gears can provide higher transmission efficiency and reduce energy loss.
[0054] ⑤ Reversibility: Due to the design of the herringbone gear, the synchronous reduction box 16 can realize bidirectional operation and has good reversibility. When the mixer is blocked, reverse to clear the blockage.
[0055] The utility model is a horizontal structure. Under the same specifications, the processing capacity of the horizontal structure is greater than that of the vertical structure. The utility model can process a large amount of materials and is suitable for large-scale production. The shape and arrangement of the specially designed mixing paddles optimize the stirring method, thereby being able to quickly and evenly mix different materials together.
[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A mixer, characterized in that: It includes a driving device, a first rotating shaft, a second rotating shaft, a first mixing paddle, a second mixing paddle and a casing; The first rotating shaft and the second rotating shaft are parallel to each other, and the axis is horizontally installed in the casing. A plurality of feed inlets are arranged at the top of one end of the casing along the axial direction, and a discharge port is arranged at the bottom of the other end; The driving device is connected to the first rotating shaft and the second rotating shaft, driving the first rotating shaft and the second rotating shaft to rotate in opposite directions; The first plurality of mixing paddles are evenly distributed on the first rotating shaft along the axis of the first rotating shaft, the second plurality of mixing paddles are evenly distributed on the second rotating shaft along the axis of the second rotating shaft, and the first mixing paddles and the second mixing paddles are alternately arranged along the axis direction; The first mixing paddle includes N blades evenly distributed around the circumference, N≥4, and the angle between adjacent blades is 360° / N. The second mixing paddle includes N blades evenly distributed around the circumference, N≥4, and the angle between adjacent blades is 360° / N. The angle between adjacent blades of the first mixing paddle and the second mixing paddle is 360° / 2N.
2. A mixer according to claim 1, characterized in that: The first mixing paddle includes four blades evenly distributed around the circumference, and the angle between adjacent blades is 90°. The second mixing paddle includes four blades evenly distributed around the circumference, and the angle between adjacent blades is 90°. The angle between adjacent blades of the first mixing paddle and the second mixing paddle is 45°.
3. A mixer according to claim 1, characterized in that: The blades are fan-shaped.
4. A mixer according to claim 1, characterized in that: The driving device includes a motor, a reducer and a reduction box; the motor and the reducer are belt-driven, the reducer is connected to the input shaft of the reduction box through a coupling, and the reduction box is provided with two output shafts, which are respectively connected to the first rotating shaft and the second rotating shaft.
5. A mixer according to claim 4, characterized in that: The reduction box is a synchronous reduction box, and the two output shafts operate synchronously.
6. A mixer according to claim 4, characterized in that: A coupler is provided between the motor and the reducer.
7. A mixer according to claim 4, characterized in that: The reduction box adopts herringbone gears.
8. A mixer according to claim 4, characterized in that: The coupling adopts a drum gear coupling.
9. A mixer according to claim 1, characterized in that: The blades are fixedly connected to the base, and the base is fixedly connected to the first and second rotating shafts.
10. A mixer according to claim 1, characterized in that: The bottom of the casing is in an ω shape.