Stirring and conveying device suitable for adhesive materials

Abstract

The invention relates to a stirring and conveying device suitable for adhesive materials, which relates to the field of conveyors and comprises a feeding barrel, a rotating shaft with two ends rotatably connected to the feeding barrel, a driving device for driving the rotating shaft to rotate and a plurality of blade units mounted on the rotating shaft along a spiral line, each blade unit comprises a mounting seat, an elastic piece, a limiting plate and a stirring blade; the mounting seat comprises a positioning part and two limiting parts; the positioning part is fixed to the rotating shaft and provided with a sliding groove with two closed ends, the limiting plate slides in the sliding groove in the radial direction of the rotating shaft, and the stirring blades are fixed to the limiting plate; the two limiting parts are fixed on the positioning part and are respectively positioned on two sides of the stirring blade; the elastic piece is positioned between the limiting plate and the rotating shaft; the included angle between the stirring blades and the rotating shaft axis is an acute angle. The technical problems that in an existing material stirring device, blades cannot dynamically adapt to material distribution in a container, when materials are too many, the blades are prone to being bent and damaged, and even a motor for driving a rotating shaft is overloaded and shut down are solved to a certain degree.

Description

Technical Field

[0001] This invention relates to the field of conveyor technology, and more particularly to a mixing and conveying device suitable for adhesive materials. Background Technology

[0002] Sludge is a common type of solid waste. It has a high water content and is easy to stick together. In order to ensure a stable conveying flow rate, most sludge conveying devices are equipped with a stirring device to break up the adhering sludge.

[0003] Chinese patent CN105478052A discloses a material mixing device, comprising: a driving device for providing power output for mixing materials; a rotating shaft connected to the driving device for transmitting power; a mounting plate spirally distributed around the outer periphery of the rotating shaft, the mounting plate being fixedly connected to the rotating shaft; and blades detachably connected to the mounting plate for mixing materials.

[0004] In the aforementioned patent, the blades are detachably mounted on the rotating shaft, facilitating blade disassembly and replacement, reducing maintenance costs and difficulty, and extending the service life of the material mixing device. However, these blades cannot dynamically adapt to the material distribution within the container. When there is a large amount of material, the starting torque of the blades is high, which can easily lead to blade bending and damage, and may even cause the motor driving the rotating shaft to overload and shut down. Summary of the Invention

[0005] To address the shortcomings of related technologies, this invention provides a mixing and conveying device suitable for adhesive materials. When the conveyor shaft rotates in the material, the blade unit can dynamically adapt to the material distribution and move radially along the shaft. This solves, to some extent, the technical problems in existing material mixing devices where the blades cannot dynamically adapt to the material distribution in the container, and where the starting torque of the blades is large when there is a lot of material, which can easily lead to the blades bending and being damaged, or even cause the motor driving the shaft to overload and stop.

[0006] This invention provides a mixing and conveying device suitable for adhesive materials, comprising: a feeding cylinder, a rotating shaft rotatably connected to both ends of the feeding cylinder, a driving device for driving the rotating shaft to rotate, and multiple blade units mounted along a spiral line on the outer cylindrical surface of the rotating shaft; a feed inlet is provided at the top of the feeding cylinder, and a discharge outlet is provided at the bottom of the feeding cylinder; each blade unit includes a mounting base, an elastic element, a limiting plate, and a mixing blade; the mounting base includes a positioning part and two limiting parts; the positioning part is fixed to the outer cylindrical surface of the rotating shaft, and the positioning part has a groove closed at both ends, the limiting plate slides radially along the rotating shaft in the groove, and the mixing blade is fixed to the side of the limiting plate away from the rotating shaft; the two limiting parts are fixed to the positioning part and are respectively located on both sides of the mixing blade, and both limiting parts are located on the side of the limiting plate away from the rotating shaft; the elastic element is located in the groove and between the limiting plate and the rotating shaft; the elastic element elastically abuts against the limiting plate; the included angle between the mixing blade and the axial direction of the rotating shaft is an acute angle.

[0007] In some embodiments, the positioning part includes two side plates and two end plates; the two side plates are welded to the outer cylindrical surface of the rotating shaft, and the two sides of the two side plates that are close to each other form a sliding groove. The two end plates respectively seal the two ends of the sliding groove, and each end plate is connected to the two side plates; at least one end plate is detachably connected to the two side plates, and two limiting parts are respectively formed on the two side plates.

[0008] In some embodiments, the drive device is located outside the feeding cylinder, the output shaft of the drive device is connected to one end of the rotating shaft, and the drive device and the discharge port are located at the same end of the feeding cylinder.

[0009] In some embodiments, the mixing and conveying device suitable for adhesive materials further includes a hopper detachably mounted to the inlet; the inlet is elongated and parallel to the axis of rotation; all blade units are located directly below the inlet; the hopper has two inner sidewalls parallel to the axis of rotation, the top edges of which are inclined in a direction away from each other.

[0010] In some embodiments, the mixing and conveying device suitable for adhesive materials also includes a distributor located above the rotating shaft and the blade unit, with multiple distributors arranged along the length of the inlet; the distributor includes two diverting plates fixedly connected, with the two diverting plates having their opposite sides inclined downwards and welded to the feeding cylinder.

[0011] In some embodiments, three to five blade units are evenly distributed on each spiral of the blade unit per revolution around the axis of rotation.

[0012] In some embodiments, the helix of the blade unit is a variable lead cylindrical helix, and the lead of the variable lead cylindrical helix increases by a fixed value set by the user for each revolution around the axis.

[0013] In some embodiments, the angle between the stirring blade and the axis of rotation is 45° to 70°.

[0014] In some embodiments, the elastic element is an arc-shaped steel sheet.

[0015] In some embodiments, the stirring blade includes a fan-shaped portion welded to a limiting plate and a disturbance portion formed on the fan-shaped portion; the width of the fan-shaped portion gradually increases in the direction away from the limiting plate, the disturbance portion is located in the middle of the arc-shaped side of the fan-shaped portion away from the limiting plate, and the width of the disturbance portion gradually decreases in the direction away from the limiting plate; the maximum width of the disturbance portion is equal to one-third of the maximum width of the disturbance portion, and the height of the disturbance portion is one-fifth to one-quarter of the height of the fan-shaped portion.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the conveyor shaft rotates through the material, the blade unit dynamically adapts to the material distribution. When the material resistance on the agitator blades is high, the elastic element contracts under pressure, and the agitator blades move closer to the shaft to reduce rotational resistance, lower the possibility of blade bending and damage, and prevent the motor driving the shaft from overloading and shutting down. When the material resistance on the agitator blades is low, the elastic element returns to its original shape, and the agitator blades move away from the shaft to increase the agitation range of the blade unit and improve agitation efficiency.

[0017] 2. The elongated feed inlet helps to evenly distribute materials along the axis of the rotating shaft, improving mixing and conveying efficiency and enhancing the continuity of material outflow. The closer to the drive unit, the denser the blade units are arranged, which helps to adapt to the tendency of materials in the feeding cylinder to concentrate towards the discharge port, avoiding the material being "compacted" or "suspended" near the discharge port, thus preventing an increase in the fluctuation range of the material outflow velocity and facilitating the smooth flow of materials from the discharge port. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a stirring and conveying device suitable for adhesive materials according to a specific embodiment of the present invention; Figure 2 This is a top view of the blade unit and the rotating shaft in a specific embodiment of the present invention; Figure 3 This is a cross-sectional view of the blade unit in a specific embodiment of the present invention; Figure 4 This is a cross-sectional view of a blade unit with a disturbance section in a specific embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the internal structure of the feeding cylinder of the distributor in a specific embodiment of the present invention.

[0019] In the diagram: 1. Feeding cylinder; 11. Discharge port; 2. Rotating shaft; 3. Drive device; 4. Blade unit; 41. Positioning part; 411. Side plate; 412. End plate; 42. Limiting part; 43. Elastic element; 44. Limiting plate; 45. Stirring blade; 451. Fan-shaped part; 452. Disturbing part; 5. Hopper; 6. Distributor; 61. Diverter plate. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] like Figure 1-5As shown in an illustrative embodiment of a mixing and conveying device suitable for adhesive materials according to the present invention, the mixing and conveying device suitable for adhesive materials includes at least: a feeding cylinder 1, a rotating shaft 2 rotatably connected to both ends of the feeding cylinder 1, a driving device 3 for driving the rotating shaft 2 to rotate, and a plurality of blade units 4 mounted on the outer cylindrical surface of the rotating shaft 2 along a spiral line; a feed inlet is provided at the top of the feeding cylinder 1, and a discharge outlet 11 is provided at the bottom of the feeding cylinder 1; the blade unit 4 includes a mounting base, an elastic element 43, a limiting plate 44, and a mixing blade 45; the mounting base includes a positioning part 41 and two limiting parts. 42; The positioning part 41 is fixed to the outer cylindrical surface of the rotating shaft 2. The positioning part 41 is provided with a sliding groove closed at both ends. The limiting plate 44 slides radially along the rotating shaft 2 in the sliding groove. The stirring blade 45 is fixed to the side of the limiting plate 44 away from the rotating shaft 2. Two limiting parts 42 are fixed to the positioning part 41 and are located on both sides of the stirring blade 45. Both limiting parts 42 are located on the side of the limiting plate 44 away from the rotating shaft 2. The elastic element 43 is located in the sliding groove and between the limiting plate 44 and the rotating shaft 2. The elastic element 43 elastically abuts against the limiting plate 44. The included angle between the stirring blade 45 and the axial direction of the rotating shaft 2 is an acute angle.

[0025] When the conveyor shaft 2 rotates in the material, the blade unit 4 can dynamically adapt to the material distribution. When the material resistance experienced by the stirring blade 45 is large, the elastic element 43 is compressed and contracts, causing the stirring blade 45 to move closer to the shaft 2, thereby reducing the rotational resistance of the stirring blade 45, lowering the possibility of bending and damage, and preventing the motor driving the shaft 2 from overloading and shutting down. When the material resistance experienced by the stirring blade 45 is small, the elastic element 43 returns to its original shape, and the stirring blade 45 moves back away from the shaft 2, thereby increasing the disturbance range of the blade unit 4 and improving the stirring efficiency. All blade units 4 are spirally distributed, and the angle between the stirring blade 45 and the axial direction of the shaft 2 is acute, allowing the material to be pushed along the axial direction of the shaft 2 by the stirring blade 45 during the stirring process.

[0026] In some embodiments, the positioning part 41 includes two side plates 411 and two end plates 412; the two side plates 411 are welded to the outer cylindrical surface of the rotating shaft 2, and the two sides of the two side plates 411 that are close to each other form a sliding groove, and the two end plates 412 respectively seal the two ends of the sliding groove, and each end plate 412 is connected to the two side plates 411; wherein at least one end plate 412 is detachably connected to the two side plates 411, and two limiting parts 42 are respectively formed on the two side plates 411.

[0027] The limiting plate 44 enters and exits the chute through the chute opening where the detachable end plate 412 is located, so as to realize the replacement of the mixing blade 45 and reduce the maintenance cost and maintenance difficulty of the conveyor.

[0028] Furthermore, the end plates 412 at both ends of the chute are detachably connected to the two side plates 411.

[0029] Furthermore, the end plate 412 is connected to the two side plates 411 by multiple bolts.

[0030] In some embodiments, the drive device 3 is located outside the feeding cylinder 1, the output shaft of the drive device 3 is connected to one end of the rotating shaft 2, and the drive device 3 and the discharge port 11 are located at the same end of the feeding cylinder 1.

[0031] The output shaft of drive unit 3 mainly bears tensile force, which helps reduce the risk of bending and deformation of shaft 2.

[0032] Furthermore, there is a gap between the feeding cylinder 1 and the stirring blade 45 to prevent the stirring blade 45 from scraping against the feeding cylinder 1 during rotation, thus protecting both the stirring blade 45 and the feeding cylinder 1.

[0033] In some embodiments, the arithmetic linear blade conveyor suitable for small silos of adhesive materials further includes a hopper 5, which is detachably installed at the feed inlet; the feed inlet is an elongated strip parallel to the axis of the rotating shaft 2; all blade units 4 are located directly below the feed inlet; the hopper 5 has two inner sidewalls parallel to the axis of the rotating shaft 2, and the top edges of the two inner sidewalls are inclined in a direction away from each other.

[0034] The elongated feed inlet helps to evenly distribute materials along the axis of the rotating shaft 2, improving mixing and conveying efficiency and enhancing the continuity of material outflow. The two inner sidewalls of the hopper 5, parallel to the axis of the rotating shaft 2, guide the material in the hopper 5 towards the feed inlet.

[0035] In some embodiments, the mixing and conveying device suitable for adhesive materials also includes a distributor 6 located above the rotating shaft 2 and the blade unit 4. Multiple distributors 6 are arranged along the length of the feed inlet. The distributor 6 includes two diverting plates 61 fixedly connected. The two diverting plates 61 have their opposite sides inclined downward and welded to the feeding cylinder 1.

[0036] After the material falls to the top of the distributor 6, it is divided along the two diversion plates 61, and then falls from both sides of the distributor to both sides of the rotating shaft 2. The distributor 6 helps to increase the uniformity of the material in the width direction of the feeding cylinder 1.

[0037] In some embodiments, three to five blade units 4 are evenly distributed on each spiral of the blade unit 4 around the shaft 2 to improve the axial stirring and conveying efficiency of the shaft 2.

[0038] In some embodiments, the spiral of the blade unit 4 is a variable lead cylindrical spiral, and the lead of the variable lead cylindrical spiral increases by a fixed value set by the user for each revolution around the shaft 2.

[0039] The closer to the drive unit 3, the denser the arrangement of the blade units 4, which is conducive to adapting to the tendency of the material in the feeding cylinder 1 to concentrate towards the discharge port 11, helping the material to flow out smoothly from the discharge port 11, and avoiding the material being "compacted" or "suspended" near the discharge port 11, which would lead to an increase in the fluctuation range of the material outflow speed.

[0040] In some embodiments, the angle between the stirring blade 45 and the axis of the rotating shaft 2 is 45° to 70° to ensure the pushing efficiency of the stirring blade 45 on the material.

[0041] In some embodiments, the elastic element 43 is an arc-shaped steel sheet, which has a simple structure, is easy to manufacture, and has a long service life.

[0042] In some embodiments, the stirring blade 45 includes a fan-shaped portion 451 welded to the limiting plate 44, and a disturbance portion 452 formed on the fan-shaped portion 451; the width of the fan-shaped portion 451 gradually increases in the direction away from the limiting plate 44, the disturbance portion 452 is located in the middle of the arc-shaped side of the fan-shaped portion 451 away from the limiting plate 44, and the width of the disturbance portion 452 gradually decreases in the direction away from the limiting plate 44; the maximum width of the disturbance portion 452 is equal to one-third of the maximum width of the disturbance portion 452, and the height of the disturbance portion 452 is one-fifth to one-quarter of the height of the fan-shaped portion 451. The height direction of the stirring blade 45 and the fan-shaped portion 451 is radial to the axis of rotation 2, and the width direction of the stirring blade 45 and the fan-shaped portion 451 is perpendicular to the radial direction of the axis of rotation 2 and parallel to the plane where the stirring blade 45 is located.

[0043] The disturbance part 452 can increase the shearing and disturbance effect of the stirring blade 45 on the material, thereby improving the stirring efficiency.

[0044] Through the description of several embodiments of the stirring and conveying device for adhesive materials according to the present invention, it can be seen that the embodiments of the stirring and conveying device for adhesive materials according to the present invention have at least one or more of the following advantages: 1. When the conveyor shaft rotates through the material, the blade unit dynamically adapts to the material distribution. When the material resistance on the agitator blades is high, the elastic element contracts under pressure, and the agitator blades move closer to the shaft to reduce rotational resistance, lower the possibility of blade bending and damage, and prevent the motor driving the shaft from overloading and shutting down. When the material resistance on the agitator blades is low, the elastic element returns to its original shape, and the agitator blades move away from the shaft to increase the agitation range of the blade unit and improve agitation efficiency.

[0045] 2. The elongated feed inlet helps to evenly distribute materials along the axis of the rotating shaft, improving mixing and conveying efficiency and enhancing the continuity of material outflow. The closer to the drive unit, the denser the blade units are arranged, which helps to adapt to the tendency of materials in the feeding cylinder to concentrate towards the discharge port, avoiding the material being "compacted" or "suspended" near the discharge port, thus preventing an increase in the fluctuation range of the material outflow velocity and facilitating the smooth flow of materials from the discharge port.

[0046] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A mixing and conveying device suitable for adhesive materials, characterized in that, include: The feeding cylinder, the rotating shaft rotatably connected to both ends of the feeding cylinder, the driving device that drives the rotating shaft to rotate, and multiple blade units mounted on the outer cylindrical surface of the rotating shaft along a spiral line; The feeding cylinder has an inlet at the top and an outlet at the bottom. The blade unit includes a mounting base, an elastic element, a limiting plate, and a stirring blade. The mounting base includes a positioning part and two limiting parts. The positioning part is fixed to the outer cylindrical surface of the rotating shaft and has a groove closed at both ends. The limiting plate slides radially along the rotating shaft within the groove, and the stirring blade is fixed to the side of the limiting plate away from the rotating shaft. The two limiting parts are fixed to the positioning part and are located on both sides of the stirring blade. Both limiting parts are located on the side of the limiting plate away from the rotating shaft. The elastic element is located within the groove and between the limiting plate and the rotating shaft. The elastic element elastically abuts against the limiting plate. The angle between the stirring blade and the axial direction of the rotating shaft is an acute angle.

2. The mixing and conveying device suitable for adhesive materials according to claim 1, characterized in that, The positioning part includes two side plates and two end plates; the two side plates are welded to the outer cylindrical surface of the rotating shaft, and the two sides of the two side plates that are close to each other form a sliding groove. The two end plates respectively seal the two ends of the sliding groove, and each end plate is connected to the two side plates; at least one end plate is detachably connected to the two side plates, and two limiting parts are respectively formed on the two side plates.

3. The mixing and conveying device suitable for adhesive materials according to claim 1, characterized in that, The drive unit is located outside the feeding cylinder, and the output shaft of the drive unit is connected to one end of the rotating shaft. The drive unit and the discharge port are located at the same end of the feeding cylinder.

4. A mixing and conveying device suitable for adhesive materials according to claim 3, characterized in that, It also includes a hopper, which is detachably installed at the feed inlet; the feed inlet is a long strip parallel to the axis of rotation; all blade units are located directly below the feed inlet; the hopper has two inner sidewalls parallel to the axis of rotation, and the top edges of these two inner sidewalls are inclined in a direction away from each other.

5. A mixing and conveying device suitable for adhesive materials according to claim 4, characterized in that, It also includes a distributor located above the rotating shaft and blade unit, with multiple distributors arranged along the length of the feed inlet; the distributor includes two fixedly connected diverter plates, with the two diverter plates inclined downwards on their opposite sides and welded to the feed cylinder.

6. A mixing and conveying device suitable for adhesive materials according to claim 3, characterized in that, Three to five blade units are evenly distributed on each spiral of the blade unit that rotates around the axis of rotation.

7. A mixing and conveying device suitable for adhesive materials according to claim 6, characterized in that, The spiral of the blade unit is a variable lead cylindrical spiral. For each revolution of the variable lead cylindrical spiral around the axis, the lead of the variable lead cylindrical spiral increases by a fixed value that is set manually.

8. A mixing and conveying device suitable for adhesive materials according to any one of claims 1-7, characterized in that, The angle between the stirring blade and the axis of the rotating shaft is 45° to 70°.

9. A mixing and conveying device suitable for adhesive materials according to any one of claims 1-7, characterized in that, The elastic element is an arc-shaped steel sheet.

10. A mixing and conveying device suitable for adhesive materials according to any one of claims 1-7, characterized in that, The stirring blade includes a fan-shaped portion welded to the limiting plate, and a disturbance portion formed on the fan-shaped portion; the width of the fan-shaped portion gradually increases in the direction away from the limiting plate, and the disturbance portion is located in the middle of the arc-shaped side of the fan-shaped portion away from the limiting plate, and the width of the disturbance portion gradually decreases in the direction away from the limiting plate; the maximum width of the disturbance portion is equal to one-third of the maximum width of the disturbance portion, and the height of the disturbance portion is one-fifth to one-quarter of the height of the fan-shaped portion.

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