Stirring and blending device

Abstract

The utility model relates to a stirring and blending device. Comprising a support, a mixing tank is fixedly connected to the support, a feeding cover plate is installed on the top of the mixing tank, and a discharging valve is installed at the bottom of the mixing tank; a lifting driving part is mounted at the top of the mixing tank, a lifting connecting rod and a lifting frame structure are mounted at the extending end of the lifting driving part, the mixing device further comprises a stirring rotating shaft which is rotationally connected with the lifting frame structure and can synchronously ascend and descend, and a plurality of groups of stirring blades are mounted on the stirring rotating shaft; the spline shaft is connected to the stirring rotating shaft; the rotation driving assembly is also included; the lifting frame structure comprises an annular mounting pipe, a plurality of groups of mounting vertical pipes are fixedly connected to the annular mounting pipe, the lower adapter sleeve is rotationally connected to the lower end part of the stirring rotating shaft, mounting inclined pipes are fixedly connected between the lower adapter sleeve and each mounting vertical pipe, and an arc-shaped connecting plate is fixedly connected between every two adjacent groups of mounting vertical pipes. According to the utility model, mixed materials can be efficiently stirred, the material mixing effect is good, and the working efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of mixing equipment, and in particular relates to a stirring and mixing device. Background Art

[0002] Bio-based materials refer to a new type of materials that are manufactured using renewable biomass or raw materials obtained through biomanufacturing through biological, chemical, physical and other means, such as bioplastics and biomass functional polymer materials.

[0003] In the preparation process of bio-based materials, it is necessary to mix and stir a variety of raw materials, and then granulate the fully mixed materials, that is, process the above-mentioned bio-based material mixture into granules for later transportation and use. For the preparation of bio-based materials, when it involves large-scale production, a large-scale stirring and mixing device is required to stir and mix a large amount of raw materials, and then a granulator is used to granulate the bio-based material mixture. Therefore, the stirring effect and work efficiency of the stirring and mixing device have become important indicators for judging the efficiency of the bio-based material preparation process and the quality of the finished product.

[0004] In terms of structure, the existing traditional stirring and compounding device mainly includes a mixing tank, in which a simple stirring component is arranged, and the mixed material in the mixing tank is stirred by the rotating stirring component. However, in order to be able to perform batch stirring operations on a large number of mixtures, a mixing tank with a relatively large volume and height is often used, while the structure of the stirring component is relatively simple and the stirring range of the stirring component is fixed, which cannot fully stir the mixture in the large mixing tank, resulting in low work efficiency and poor stirring effect of the mixture, thereby affecting the quality of the prepared bio-based material. Utility Model Content

[0005] The utility model provides a stirring and mixing device with reasonable structural design, high working efficiency and good stirring effect in order to solve the technical problems existing in the known technology.

[0006] The utility model adopts the technical scheme to solve the technical problems existing in the known technology: a stirring and mixing device comprises a bracket, a mixing tank is fixedly connected to the bracket, a feeding port is provided at the top of the mixing tank and a feeding cover plate is hingedly installed at the feeding port, a discharging port is provided at the bottom of the mixing tank and a discharge valve is installed at the discharging port; at least two groups of lifting driving members with their protruding ends facing downward are installed at the top of the mixing tank, lifting connecting rods are installed at the protruding ends of each lifting driving member, a lifting frame structure is installed between the at least two groups of lifting connecting rods, and also includes a lifting frame structure provided in the middle area of ​​the lifting frame structure, which is rotatably connected with the lifting frame structure and can be lifted synchronously A stirring shaft that can be lowered and moved, and a plurality of stirring blades distributed along its axial direction are installed on the outer peripheral wall of the stirring shaft; it also includes a spline shaft coaxially connected to the stirring shaft, and a rotation drive component for driving the spline shaft to rotate; the lifting frame structure includes an annular mounting tube connected to at least two groups of lifting connecting rods, and a plurality of mounting vertical tubes distributed in a circumferential direction are fixedly connected to the annular mounting tube, and also includes a lower adapter kit installed at the lower end of the stirring shaft and rotatably connected thereto, an inclined mounting tube is fixedly connected between the outer peripheral wall of the lower adapter kit and each mounting vertical tube, and an arc-shaped connecting plate is fixedly connected between two adjacent groups of mounting vertical tubes.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a stirring and mixing device, which can stir the materials around the stirring shaft in the mixing tank by arranging a rotatable stirring shaft and multiple groups of stirring blades installed on the stirring shaft, and can increase the stirring range of the stirring shaft and the multiple groups of stirring blades in the circumferential direction by cooperating with the lifting frame structure rotatably connected to the stirring shaft; by arranging a lifting drive member and a lifting connecting rod, the lifting frame structure can be driven to lift and move, and since the lifting frame structure and the stirring shaft are rotatably connected, the stirring shaft can be lifted and moved synchronously with the lifting frame structure, thereby increasing the stirring range of the stirring shaft and the multiple groups of stirring blades in the axial direction, improving the stirring and mixing effect of the stirring and mixing device, and improving the work efficiency; by arranging a spline shaft and a rotating drive assembly, it can be ensured that the stirring shaft can rotate continuously when it is lifted and moved, so that the stirring and mixing device of the utility model can smoothly and efficiently perform the stirring operation, further improving the work efficiency.

[0008] Preferably: the rotary drive assembly includes a mounting sleeve fixed to the top of the mixing tank, a rotary mounting sleeve coaxially fixed to the mounting sleeve, a driven sprocket rotatably connected thereto is inserted in the rotary mounting sleeve, a spline shaft is passed through the mounting sleeve and cooperates with the driven sprocket spline; and also includes a rotary drive member installed on the top of the mixing tank, a driving sprocket is key-connected to the output shaft of the rotary drive member, and a transmission chain is transmission-connected between the driven sprocket and the driving sprocket.

[0009] Preferably, it also includes a discharge auger which is coaxially connected to the stirring shaft and can rotate synchronously therewith, and the discharge auger passes through the lower adapter kit and can extend to the discharge port opened at the bottom of the mixing tank.

[0010] Preferably: the lower adapter kit includes a cover plate portion and a rotating sleeve portion connected by flanges, the rotating shaft portion of the discharging auger passes through the rotating sleeve portion of the lower adapter kit and is rotatably connected to the rotating sleeve portion through a bearing; the lower end portion of the stirring shaft is rotatably connected to the lower adapter kit through a bearing.

[0011] Preferably, the upper and lower ends of the arc-shaped connecting plate are respectively connected to the upper and lower ends of two adjacent groups of mounting risers, and the outer edge of the arc-shaped connecting plate is close to the inner wall of the mixing tank and has a clearance fit with the inner wall of the mixing tank.

[0012] Preferably, the bottom of the mixing tank is in a truncated cone structure, and the inclination of the installation inclined pipe is adapted to the inclination of the truncated cone bottom surface of the mixing tank.

[0013] Preferably, it also includes a drive mounting frame fixed to the top of the mixing tank, each lifting drive member is mounted on the drive mounting frame, and the rotation drive assembly is mounted on the drive mounting frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the lifting frame structure in the utility model.

[0016] In the figure: 1. bracket; 2. discharge valve; 3. discharge auger; 4. stirring blade; 5. mixing tank; 6. lifting frame structure; 6-1. installation of inclined pipe; 6-2. lower adapter kit; 6-3. arc-shaped connecting plate; 6-4. installation of vertical pipe; 6-5. ring-shaped installation pipe; 7. pipe sleeve installation; 8. lifting connecting rod; 9. stirring shaft; 10. spline shaft; 11. installation of pipe sleeve; 12. lifting drive member; 13. rotating drive member; 14. feeding cover plate; 15. driven sprocket; 16. rotating installation sleeve; 17. driving sprocket; 18. driving mounting frame. DETAILED DESCRIPTION

[0017] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0018] See also Figure 1 The stirring and mixing device of the utility model comprises a bracket 1, on which a mixing tank 5 is fixedly connected, a feed port is provided at the top of the mixing tank 5 and a feeding cover plate 14 is hingedly installed at the feed port, a discharge port is provided at the bottom of the mixing tank 5 and a discharge valve 2 is installed at the discharge port.

[0019] like Figure 1 As shown, the present embodiment also includes a drive mounting frame 18 fixed to the top of the mixing tank 5. In addition, at least two groups of lifting drive members 12 with their protruding ends facing downward are installed on the top of the mixing tank 5. In the present embodiment, the lifting drive member 12 adopts a linear hydraulic cylinder, and the cylinder barrel of the hydraulic cylinder is connected to the drive mounting frame 18. A lifting connecting rod 8 is installed at the protruding end of each lifting drive member 12, and a lifting frame structure 6 is installed between at least two groups of lifting connecting rods 8. The present embodiment also includes a stirring shaft 9 that is rotatably connected to the lifting frame structure 6 and can be lifted and moved synchronously, and a plurality of groups of stirring blades 4 distributed along the axial direction of the stirring shaft 9 are installed on the outer peripheral wall of the stirring shaft 9. The present embodiment also includes a discharging auger 3 that is coaxially connected to the stirring shaft 9 and can rotate synchronously with it. The discharging auger 3 passes through the lower adapter kit 6-2 and can extend to the discharging port opened at the bottom of the mixing tank 5.

[0020] See also Figure 2 In this embodiment, the lifting frame structure 6 includes an annular mounting tube 6-5 connected to at least two groups of lifting connecting rods 8, and multiple groups of mounting vertical tubes 6-4 distributed in the circumferential direction are fixedly connected to the annular mounting tube 6-5, and also includes a lower adapter set 6-2 installed at the lower end of the stirring shaft 9 and connected to it for rotation, and an inclined mounting inclined tube 6-1 is fixedly connected between the outer peripheral wall of the lower adapter set 6-2 and each mounting vertical tube 6-4, and an arc-shaped connecting plate 6-3 is fixedly connected between two adjacent groups of mounting vertical tubes 6-4. Among them, the upper and lower ends of the arc-shaped connecting plate 6-3 are respectively connected to the upper and lower ends of the two adjacent groups of mounting vertical tubes 6-4, and the outer edge of the arc-shaped connecting plate 6-3 is close to the inner wall of the mixing tank 5 and is in gap with the inner wall of the mixing tank 5. In addition, in this embodiment, the bottom of the mixing tank 5 is a truncated cone structure, and the inclination of the mounting inclined tube 6-1 is adapted to the inclination of the truncated cone bottom surface of the mixing tank 5.

[0021] Furthermore, to facilitate disassembly, cleaning and installation, the above-mentioned lower adapter kit 6-2 includes a cover plate portion and a rotating sleeve portion connected by a flange, and the rotating shaft portion of the discharging auger 3 passes through the rotating sleeve portion of the lower adapter kit 6-2 and is rotatably connected to the rotating sleeve portion through a bearing; the lower end portion of the stirring shaft 9 is rotatably connected to the lower adapter kit 6-2 through a bearing.

[0022] In order to maintain the sealing performance, a sealing ring is provided between the joint surface of the cover plate portion and the rotating sleeve portion of the lower adapter kit 6-2, a sealing end cover and a sealing ring are provided between the stirring shaft 9 and the cover plate portion of the lower adapter kit 6-2, and a sealing end cover and a sealing ring are provided between the rotating shaft portion of the discharge auger 3 and the rotating sleeve portion of the lower adapter kit 6-2. The rotating shaft portion of the discharge auger 3 is threadedly connected to the lower end portion of the stirring shaft 9, and the unscrewing direction of the discharge auger 3 and the stirring shaft 9 is opposite to the stirring rotation direction of the stirring shaft 9. The upper end portion of the stirring shaft 9 is threadedly connected to the lower end portion of the spline shaft 10, and the unscrewing direction of the stirring shaft 9 and the spline shaft 10 is opposite to the stirring rotation direction of the stirring shaft 9.

[0023] In addition, in order to realize the detachable connection between the lifting connecting rod 8 and the lifting frame structure 6, the present embodiment also includes a pipe sleeve mounting member 7 that can be detachably installed on the annular mounting tube 6-5, and the pipe sleeve mounting member 7 includes two groups of saddle-shaped clamps that are installed by bolts and locking butts, and a plate for installing the lifting connecting rod 8 is welded and fixed to one group of the saddle-shaped clamps.

[0024] like Figure 1 As shown, this embodiment also includes a spline shaft 10 coaxially connected to the stirring shaft 9, and also includes a rotation drive assembly for driving the spline shaft 10 to rotate. Among them, the above-mentioned rotation drive assembly includes a mounting sleeve 11 fixed on the top of the mixing tank 5, a rotation mounting sleeve 16 is coaxially fixed to the mounting sleeve 11, a driven sprocket 15 connected to the rotation thereof is inserted in the rotating mounting sleeve 16, and the spline shaft 10 is inserted in the mounting sleeve 11 and splined with the driven sprocket 15. The rotation drive assembly also includes a rotation drive member 13 installed on the top of the mixing tank 5, a driving sprocket 17 is keyed to the output shaft of the rotation drive member 13, and a transmission chain is transmission-connected between the driven sprocket 15 and the driving sprocket 17. In addition, the rotation drive member 13 adopts a reduction motor, and a bracket for fixing the reduction motor is installed on the drive mounting frame 18.

[0025] Working principle:

[0026] By providing a rotatable stirring shaft 9 and multiple groups of stirring blades 4 installed on the stirring shaft 9, the material around the stirring shaft 9 in the mixing tank 5 can be stirred, and the stirring range of the stirring shaft 9 and the multiple groups of stirring blades 4 can be increased in the circumferential direction by cooperating with the lifting frame structure 6 rotatably connected to the stirring shaft 9; by providing a lifting drive member 12 and a lifting connecting rod 8, the lifting frame structure 6 can be driven to lift and move; in view of the rotatable connection between the lifting frame structure 6 and the stirring shaft 9, the stirring shaft 9 can be lifted and moved synchronously with the lifting frame structure 6, thereby increasing the stirring range of the stirring shaft 9 and the multiple groups of stirring blades 4 in the axial direction, improving the stirring and mixing effect of the stirring and mixing device, and improving the work efficiency; by providing a spline shaft 10 and a rotating drive assembly, it can be ensured that the stirring shaft 9 can rotate continuously during the lifting and moving, thereby enabling the stirring and mixing device of the utility model to smoothly and efficiently perform the stirring operation, thereby improving the work efficiency.

Claims

1. A stirring and mixing device, characterized in that: The invention comprises a support (1), a mixing tank (5) is fixedly connected to the support (1), a feeding port is provided at the top of the mixing tank (5), a feeding cover plate (14) is hingedly installed at the feeding port, a discharge port is provided at the bottom of the mixing tank (5), a discharge valve (2) is installed at the discharge port; at least two groups of lifting drive members (12) with their protruding ends facing downward are installed at the top of the mixing tank (5), a lifting connecting rod (8) is installed at the protruding end of each lifting drive member (12), a lifting frame structure (6) is installed between the at least two groups of lifting connecting rods (8), and a stirring shaft (9) is provided in the middle area of ​​the lifting frame structure (6) and is rotatably connected to the lifting frame structure (6) and can be lifted and moved synchronously, and a shaft (9) is installed on the outer peripheral wall of the stirring shaft (9) along the axial direction thereof. The invention relates to a stirring machine having a plurality of stirring blades (4) arranged on a stirring shaft (9); a spline shaft (10) coaxially connected to the stirring shaft (9); and a rotation drive assembly for driving the spline shaft (10) to rotate. The lifting frame structure (6) comprises an annular mounting tube (6-5) connected to at least two sets of lifting connecting rods (8), a plurality of circumferentially distributed mounting vertical tubes (6-4) are fixedly connected to the annular mounting tube (6-5), and a lower adapter kit (6-2) mounted on the lower end of the stirring shaft (9) and rotatably connected thereto, an obliquely arranged mounting inclined tube (6-1) is fixedly connected between the outer peripheral wall of the lower adapter kit (6-2) and each mounting vertical tube (6-4), and an arc-shaped connecting plate (6-3) is fixedly connected between two adjacent sets of mounting vertical tubes (6-4).

2. The stirring and mixing device according to claim 1, characterized in that: The rotary drive assembly comprises a mounting sleeve (11) fixedly connected to the top of the mixing tank (5), a rotary mounting sleeve (16) coaxially fixedly connected to the mounting sleeve (11), a driven sprocket (15) rotatably connected thereto inserted in the rotary mounting sleeve (16), a spline shaft (10) passing through the mounting sleeve (11) and spline-matched with the driven sprocket (15); and a rotary drive member (13) mounted on the top of the mixing tank (5), a driving sprocket (17) key-connected to the output shaft of the rotary drive member (13), and a transmission chain drivingly connected between the driven sprocket (15) and the driving sprocket (17).

3. The stirring and mixing device according to claim 1, characterized in that: It also includes a discharge auger (3) which is coaxially connected to the stirring shaft (9) and can rotate synchronously therewith. The discharge auger (3) passes through the lower adapter kit (6-2) and can extend to a discharge port opened at the bottom of the mixing tank (5).

4. The stirring and mixing device according to claim 3, characterized in that: The lower adapter kit (6-2) comprises a flange-connected cover plate portion and a rotating sleeve portion; the rotating shaft portion of the discharging auger (3) passes through the rotating sleeve portion of the lower adapter kit (6-2) and is rotatably connected to the rotating sleeve portion via a bearing; the lower end portion of the stirring shaft (9) is rotatably connected to the lower adapter kit (6-2) via a bearing.

5. The stirring and mixing device according to claim 1, characterized in that: The upper and lower ends of the arc-shaped connecting plate (6-3) are respectively connected to the upper and lower ends of two adjacent groups of mounting risers (6-4); the outer edge of the arc-shaped connecting plate (6-3) is close to the inner wall of the mixing tank (5) and has a clearance fit with the inner wall of the mixing tank (5).

6. The stirring and mixing device according to claim 1, characterized in that: The bottom of the mixing tank (5) is in a truncated cone structure, and the inclination of the installation inclined pipe (6-1) is adapted to the inclination of the bottom surface of the truncated cone of the mixing tank (5).

7. The stirring and mixing device according to claim 1, characterized in that: It also includes a drive mounting frame (18) fixed to the top of the mixing tank (5), each lifting drive member (12) is mounted on the drive mounting frame (18), and the rotation drive assembly is mounted on the drive mounting frame (18).

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