Stirring, scraping and conveying device

Abstract

The invention discloses a stirring, scraping and conveying device, and belongs to the technical field of high-purity chemical equipment for semiconductors. The stirring, scraping and conveying device comprises a conveying pipeline, a conveying device body and a motor, the conveying device body comprises a main shaft and conveying blades, the conveying blades are arranged on the outer surface of the main shaft along a cylindrical spiral line and comprise conveying parts and adjusting parts, the conveying parts are fixedly connected with the main shaft, and the adjusting parts comprise the first adjusting part and the second adjusting part; the axis of the first adjusting part in the length direction is parallel to the axis of the conveying part in the length direction, the included angle between the axis of the second adjusting part in the length direction and the axis of the conveying part in the length direction is 10-30 degrees, and the included angle between the axis of the second adjusting part in the length direction and the axis of the main shaft is 15 degrees. The main purpose of the invention is to utilize the plurality of conveying parts uniformly arranged on the spiral line to replace traditional conveying blades, and when a certain conveying part is damaged, the conveying part can be correspondingly detached and replaced, so that the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-purity chemical equipment for semiconductors, and more specifically to a stirring, scraping and conveying device. Background Art

[0002] In the production process of high-purity chemicals, there are very high requirements for the cleanliness and sealing of equipment. Generally, the entire process is required to be carried out under closed conditions. Especially for materials with smaller particle size and higher viscosity, it is easy for the materials to stick to the inner wall of the conveying pipe and the conveying blades during the conveying process, which can easily cause the conveying pipe to be blocked and the conveying blades to be damaged.

[0003] In the prior art, the replacement of the conveying blades with blocked pipelines and damage requires the entire conveying device to be disassembled and replaced, which is time-consuming and labor-intensive and affects production efficiency. Summary of the invention

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] Some embodiments of the present application propose a stirring, scraping and conveying device to solve the technical problems mentioned in the above background technology section.

[0006] As the first aspect of the present application, some embodiments of the present application provide a stirring, scraping and conveying device, comprising a conveying pipe, a conveying device and a motor, wherein the conveying pipe is provided with a feed port and a discharge port, the conveying device is arranged inside the conveying pipe, and the motor drives the conveying device to rotate; the conveying device comprises a main shaft and conveying blades, and the conveying blades are arranged on the outer surface of the main shaft along a cylindrical spiral line; the conveying blades comprise a conveying part and an adjusting part, the conveying part is fixedly connected to the main shaft and the angle between the length direction of the conveying part and the axis of the main shaft is in the range of 30° to 45°, the adjusting part comprises a first adjusting part and a second adjusting part, the length direction of the first adjusting part is parallel to the length direction of the conveying part, the length direction of the second adjusting part and the length direction of the conveying part The angle is 15° to 30° and the angle between the length direction of the second adjusting part and the axis of the main shaft is 15°.

[0007] Furthermore, the first adjusting parts and the second adjusting parts are alternately arranged on the cylindrical spiral line, and a plane passing through the axis of the main shaft is defined as S, and the projections of all the second adjusting parts on the conveying device on the plane S form a continuous straight line.

[0008] Furthermore, the conveying devices are spaced evenly apart on the main shaft, and at least 11 groups of the conveying devices are evenly distributed along the circumference of the main shaft.

[0009] Furthermore, the main shaft comprises a first section and a second section, and the lead of the cylindrical helix of the first section on the main shaft is smaller than the lead of the cylindrical helix of the second section.

[0010] Furthermore, the adjusting portion includes a first connecting mechanism, and the conveying portion includes a second connecting mechanism, and the first connecting mechanism and the second connecting mechanism cooperate with each other so that the adjusting portion can be detachably connected to the conveying portion.

[0011] Furthermore, the first connecting mechanism includes a stud and an adjusting nut, the second connecting mechanism includes a screw hole, the stud of the first connecting mechanism is threadedly connected to the screw hole of the second connecting mechanism, and the adjusting nut is sleeved on the stud so that the adjusting part can be fixedly connected to the conveying part at a fixed angle.

[0012] Furthermore, the conveying part includes a third connecting mechanism, and the main shaft is provided with a fourth connecting mechanism, and the third connecting mechanism and the fourth connecting mechanism cooperate with each other so that the conveying part can be detachably connected to the main shaft.

[0013] Furthermore, the third connecting mechanism includes a stud and an adjusting nut, the fourth connecting mechanism includes a screw hole, the stud of the third connecting mechanism is threadedly connected to the screw hole of the fourth connecting mechanism, and the adjusting nut is sleeved on the stud so that the conveying part can be fixedly connected to the main shaft at a fixed angle.

[0014] Furthermore, the angle between a line from the side surface of the conveying portion close to the main shaft to the middle and a horizontal plane ranges from 15° to 30°.

[0015] As a second aspect of the present application, some embodiments of the present application provide a conveying device, which is used for the above-mentioned stirring and scraping conveying device to convey the material from the feed port to the discharge port.

[0016] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0017] The present invention uses a plurality of conveying parts evenly arranged on a spiral line to replace the traditional conveying blades. When a conveying part at a certain place is damaged, the conveying part at that place can be disassembled and replaced accordingly. Compared with the traditional conveying blades, if a certain part is damaged, the entire conveying device needs to be replaced, which saves maintenance time and improves production efficiency. In addition, the number and angle of the conveying parts in the conveying device of the present invention can be adjusted according to actual needs, and the number and angle of the adjustment parts can also be adjusted, and can be adjusted flexibly according to materials of different viscosities. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0019] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0020] Figure 1 It is a schematic diagram of the overall structure of a stirring, scraping and conveying device according to an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of the structure of a conveying device of a stirring and scraping conveying device according to an embodiment of the present application;

[0022] Figure 3 It is a structural schematic diagram of a conveying part and an adjusting part of a stirring, scraping and conveying device according to an embodiment of the present application;

[0023] Figure 4 is a schematic structural diagram of a main shaft of a stirring, scraping and conveying device according to an embodiment of the present application;

[0024] Figure 5 is a projection view of a conveying device of a stirring and scraping conveying device according to an embodiment of the present application;

[0025] Figure 6 is a front view of a projection surface S of a stirring, scraping and conveying device according to an embodiment of the present application;

[0026] Figure 7 is a front view of a projection surface H of a stirring, scraping and conveying device according to an embodiment of the present application;

[0027] Explanation of the symbols in the schematic diagram:

[0028] 100, conveying pipeline; 110, feed inlet; 120, discharge outlet;

[0029] 200, motor;

[0030] 300, conveying device; 310, main shaft; 311, first section; 312, second section; 313, fourth connecting mechanism; 320, conveying blade; 321, conveying part; 321a, second connecting mechanism; 321b, third connecting mechanism; 322, adjusting part; 322a, first adjusting part; 322b, second adjusting part; 322c, first connecting mechanism. DETAILED DESCRIPTION

[0031] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0032] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0033] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0035] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0036] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0037] like Figures 1 to 4As shown, a stirring and scraping conveying device according to an embodiment of the present application includes a conveying pipe 100, a conveying device 300 and a motor 200. The conveying pipe 100 is provided with a feed inlet 110 and a discharge outlet 120. The conveying device 300 is arranged inside the conveying pipe 100. The motor 200 drives the conveying device 300 to rotate. The conveying device 300 includes a main shaft 310 and a conveying blade 320. The conveying blade 320 is arranged on the outer surface of the main shaft 310 along a cylindrical spiral line. The conveying blade 320 includes a conveying portion 321 and an adjusting portion 322. The conveying portion 321 The conveying portion 321 is fixedly connected to the main shaft 310 and the angle between the length direction of the conveying portion 321 and the axis of the main shaft 310 is in the range of 30° to 45°. The adjusting portion 322 includes a first adjusting portion 322a and a second adjusting portion 322b. The length direction of the first adjusting portion 322a is parallel to the length direction of the conveying portion 321. The length direction of the second adjusting portion 322b has an angle between the length direction of the conveying portion 321 and 15°, and the angle between the length direction of the second adjusting portion 322b and the axis of the main shaft 310 is 15°. The first adjusting portion 322a and the second adjusting portion 322b are alternately arranged on the cylindrical spiral line.

[0038] Specifically, the feed port 110 of the stirring and scraping conveying device includes two or more material feed ports 110 for conveying different materials to be mixed from the feed port 110 into the conveying pipeline 100, and then the multiple materials are fully stirred and fused in the conveying pipeline 100 and then output from the discharge port 120 under the conveying action of the conveying device 300. The feed port 110 and the discharge port 120 are arranged at both ends of the conveying pipeline 100. Brackets are also arranged at both ends of the conveying pipeline 100, and the conveying pipeline 100 is fixed on the brackets. A conveying device 300 is arranged in the conveying pipeline 100, and sealed bearings are arranged at both ends of the conveying device 300 so that the conveying device 300 can be rotatably connected inside the conveying pipeline 100. The conveying device 300 is driven by a motor 200, and the output shaft of the motor 200 is connected to the conveying device 300 through a coupling. The motor 200 drives the main shaft 310 to rotate and then stir and convey the materials, which reduces the work intensity of the operator and improves the overall production efficiency.

[0039] More specifically, the conveying device 300 includes a main shaft 310 and a conveying blade 320. One end of the main shaft 310 is fixedly connected to the output shaft of the motor 200 through a coupling. The motor 200 drives the main shaft 310 to rotate. The conveying blade 320 is provided on the surface of the main shaft 310. The conveying blade 320 rotates synchronously with the main shaft 310 under the drive of the main shaft 310. The conveying blade 320 can fuse the material and convey the material from the feed port 110 to the discharge port 120. The conveying blade 320 is arranged along the cylindrical spiral line on the outer surface of the main shaft 310, and when the main shaft 310 rotates, the material moves roughly along the length direction of the main shaft 310 under the push of the conveying blade 320. In the direction perpendicular to the length of the main shaft 310, the material is subjected to thrust and then extrusion movement occurs, so that it is stirred evenly.

[0040] In the existing chemical product conveying devices, screw conveyors are generally used to convey materials in closed pipelines. The screw conveyors are composed of spiral blades and a main shaft. The main shaft drives the spiral blades to rotate, and the spiral blades push the materials for conveying. The conveying object in this application is high-purity chemicals, and the material itself has a large viscosity. When using traditional screw conveyors for conveying, the material often adheres to the spiral blades and the wall of the conveying pipeline. After a period of use, the pressure on the spiral blades increases, the conveying efficiency is low, and the spiral blades themselves are prone to deformation and damage.

[0041] In this embodiment, the conveying device 300 also includes a main shaft 310 as a medium for power transmission for conveying, and a conveying blade 320 is provided on the main shaft 310 to convey materials. The conveying blade 320 of this embodiment includes a conveying part 321 and an adjusting part 322. The conveying part 321 is fixedly connected to the main shaft 310 and the angle between the length direction of the conveying part 321 and the axis of the main shaft 310 is in the range of 30° to 45°, which is roughly arranged along the direction of the cylindrical spiral line, and can be specifically 30°, 32°, 34°, 35°, 36°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°. The position of the conveying part 321 on the main shaft 310 is fixed on the cylindrical spiral line, so when the main shaft 310 rotates, the conveying part 321 can push the material to move in the length direction of the main shaft 310, playing the same role as the spiral blade. At the same time, since the conveying parts 321 are separate entities, the entire conveying device 300 is lighter than the spiral blades in the prior art, which facilitates overall disassembly and installation; at the same time, when the conveying blades 320 somewhere in the conveying device 300 are damaged, they can also be directly replaced, reducing maintenance costs and improving production efficiency.

[0042] The adjusting portion 322 includes a first adjusting portion 322a and a second adjusting portion 322b, wherein the length direction of the first adjusting portion 322a is parallel to the length direction of the conveying portion 321, and the angle between the length direction of the second adjusting portion 322b and the length direction of the conveying portion 321 is 15° to 30°. The first adjusting portion 322a and the conveying portion 321 have the same rotation angle, which increases the conveying area of ​​the conveying portion 321 and improves the conveying efficiency. The second adjusting portion 322b has an angle with the axis of the length direction of the conveying portion 321, which is one of 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29°, and 30°. An angle is set between the second adjusting portion 322b and the conveying portion 321 and the angle between the second adjusting portion 322b and the axis of the main shaft 310 is 15°, that is, no matter what the angles between the first adjusting portion 322a, the second adjusting portion 322b and the axis are, the angle between the second adjusting portion 322b and the axis is always 15°.

[0043] Specifically, the first adjustment part 322a and the second adjustment part 322b are defined to include an m end and an n end, wherein the m end refers to one end of the first adjustment part 322a or the second adjustment part 322b close to the feed port 110, and the n end refers to one end of the first adjustment part 322a or the second adjustment part 322b close to the discharge port 120. The line connecting the m end and the n end of the first adjustment part 322a is the length direction of the first adjustment part 322a, and the line connecting the m end and the n end of the second adjustment part 322b is the length direction of the second adjustment part 322b. Similarly, the conveying part 321 is defined to include an x ​​end and a y end, wherein the x end refers to one end of the conveying part close to the feed port 110, and the y end refers to one end close to the discharge port 120. The line connecting the x end and the y end of the conveying part 321 is the length direction of the conveying part 321. When viscous material is transported in the conveying pipe 100, due to its high viscosity, the material will adhere to the inner wall of the conveying pipe 100. The function of the second adjusting portion 322b is to set an angle between it and the conveying portion 321, that is, the directions of the forces exerted on the material by the second adjusting portion 322b and the conveying portion 321 are different. The second adjusting portion 322b can scrape off the material attached to the inner wall of the conveying pipe 100. At the same time, since the angle between the second adjusting portion 322b and the axis is 15°, in the process of conveying the material, in the forward direction, the front end of the second adjusting portion 322b contacts the material attached to the inner wall of the conveying pipe 100 first, and the rear end of the second adjusting portion 322b contacts the material attached to the inner wall of the conveying pipe 100 later. After the first contacting second adjusting portion 322b scrapes the material from the inner wall, the material will be enriched along the side wall of the second adjusting portion 322b under the action of inertia and gravity. After the material is enriched to the critical value that gravity can overcome the friction force, the material falls from the side wall of the second adjusting portion 322b. The second adjusting portion 322b is set to have an angle with the axis, so that its scraping direction and movement direction have an angle. After the material scraped off the surface that contacts the material first is quickly enriched to a certain weight, it drives the material on the contact surface that contacts the material later to be quickly enriched and fall off under the action of inertia and viscosity, thereby reducing the residence time of the material on the scraping surface and enhancing its scraping effect.

[0044] like Figure 5As shown, in a specific embodiment, the first adjusting portion 322a and the second adjusting portion 322b are alternately arranged on the cylindrical spiral line, and a plane parallel to the axis of the main shaft 310 is defined as S, and the projections of all the second adjusting portions 322b on the conveying device 300 on the plane S form a continuous straight line. The first adjusting portion 322a and the second adjusting portion 322b are alternately arranged to minimize the influence of the adjusting portion 322 on the entire conveying process. At the same time, the projection of the second adjusting portion 322b on the S surface is roughly kept in the first position and connected, ensuring that the moving path of the second adjusting portion 322b can cover the inner wall of the entire conveying pipeline 100, and ensuring the scraping effect of the second adjusting portion 322b on the attached materials.

[0045] Specifically, the second adjustment portion 322b is projected onto the S surface to form a projection surface of the second adjustment portion 322b on the S surface. The projection of the second adjustment portion 322b is the second adjustment portion projection 322b'. Figure 6 As shown; the S surface includes an X direction and a Y direction, wherein the X direction is parallel to the axis of the main shaft 310, the Y direction is perpendicular to the X direction, the second adjustment portion projections 322b' overlap each other in the X direction, and the projections of the ath and a+1th second adjustment portions 322b from the feed port 110 to the discharge port 120 can be described as follows, and the distance from the nth end of the ath second adjustment portion projection 322b' to the discharge port 120 is Dn a The distance from the m end of the a+1 second adjustment portion projection 322b' to the discharge port 120 is Dm a+1 , then Dm a+1 >Dn a The relationship between the sum of the lengths of all second adjustment portion projections 322b' in the X direction and the length of the main axis 310 satisfies the following formula:

[0046] 1.2L>ΣDmn>1.05L

[0047] The definitions of the above symbols are as follows:

[0048] Dmn is the length of the second adjustment portion projection 322b' in the X direction,

[0049] ΣDmn is the summed length of Dmn of all second adjustment portion projections 322b',

[0050] L is the length of the main axis 310;

[0051] The present invention controls 1.2L>ΣDmn>1.05L, thereby effectively ensuring that the second adjusting portion 322b can scrape the material attached to the pipe wall, while reducing the contact surface of the second adjusting portion 322b, thereby improving the loss of frictional kinetic energy; and by arranging the first adjusting portion 322a and the second adjusting portion 322b at intervals, the material on the pipe wall is scraped as much as possible while ensuring the conveying efficiency; at the same time, during the scraping process, since the second adjusting portion 322b and the scraping portion 321 have a certain angle, the secondary adhesion of the material during the scraping process is avoided, thereby improving the scraping efficiency.

[0052] Define the plane parallel to the cross section of the main axis as H, and project the conveying blade 320 onto the H plane to form a projection surface of the conveying blade 320 on the H plane, such as Figure 7 As shown, the projection of the conveying blade 320 is defined as the conveying blade projection 320'. On a cylindrical spiral line period, any conveying blade projection 320'j partially overlaps with its two adjacent conveying blade projections 320'j+1 and 320'j-1. The area of ​​all overlapping conveying blade projections in the conveying blade projections 320' on a cylindrical spiral line period is defined as Z, and the area of ​​the remaining non-overlapping conveying blade projections is Z'. The overlap rate is K, K = Z / (Z+Z ′ ), the overlap rate ranges from 0.25 to 0.5. The overlap rate K represents the overlap degree of the projection of the conveying blades on the H surface. The higher the value of K, the smaller the distance between the conveying blades on the cylindrical spiral line, the higher the density, and the higher the conveying efficiency. When the overlap rate exceeds 0.5, the installation of the conveying blades on the main shaft is restricted, making it inconvenient to replace them.

[0053] The present invention controls the overlap rate K to be 0.25 to 0.5, thereby facilitating the replacement of blades while ensuring the conveying efficiency as much as possible, thereby preventing excessive flow of materials in the gaps between the conveying blades 320 and reducing the conveying efficiency; in addition, it also prevents excessive overlap rate from causing materials to aggregate and stick between the conveying blades 320 and affect the conveying performance of the equipment.

[0054] In a specific embodiment, the spacing of the conveying devices 300 on the main shaft 310 is equal, and at least 11 groups of the conveying devices 300 are equidistantly distributed along the circumference of the main shaft 310. The conveying devices 300 are equidistantly arranged on the main shaft 310 and at least 11 groups are arranged along the circumference. In the circumferential direction, there are 6 groups of conveying parts 321 with first adjustment parts 322a, and a conveying part 321 with second adjustment part 322b is arranged between every two conveying parts 321 with first adjustment parts 322a. The equidistant arrangement ensures the uniformity and smoothness of the conveying device 300 during the conveying and scraping process.

[0055] In a specific embodiment, the main shaft 310 includes a first section 311 and a second section 312 , and the lead of the cylindrical helix of the first section 311 is smaller than the lead of the cylindrical helix of the second section 312 .

[0056] Specifically, at the first section 311 of the main shaft 310, a variety of materials enter the conveying pipe 100, and the main shaft 310 at the first section 311 drives the conveying part 321 and the adjusting part 322 to fully stir the various materials and convey a small amount of materials, so that the conveyed materials have enough time and space to be evenly stirred, and then the materials entering the second section 312 can be more evenly mixed and then conveyed to the discharge port 120.

[0057] In a specific embodiment, the adjusting portion 322 includes a first connecting mechanism 322c, and the conveying portion 321 includes a second connecting mechanism 321a, and the first connecting mechanism 322c and the second connecting mechanism 321a cooperate to enable the adjusting portion 322 to be detachably connected to the conveying portion 321. The first connecting mechanism 322c includes a stud and an adjusting nut, and the second connecting mechanism 321a includes a screw hole, and the stud of the first connecting mechanism 322c is threadedly connected to the screw hole of the second connecting mechanism 321a, and the adjusting nut is sleeved on the stud so that the adjusting portion 322 can be fixedly connected to the conveying portion 321 at a fixed angle.

[0058] The conveying part 321 includes a third connection mechanism 321b, and a fourth connection mechanism 313 is provided on the main shaft 310. The third connection mechanism 321b and the fourth connection mechanism 313 cooperate to enable the conveying part 321 to be detachably connected to the main shaft 310. The third connection mechanism 321b includes a stud and an adjusting nut, and the fourth connection mechanism 313 includes a screw hole. The stud of the third connection mechanism 321b is threadedly connected to the screw hole of the fourth connection mechanism 313, and the adjusting nut is sleeved on the stud so that the conveying part 321 can be fixedly connected to the main shaft 310 at a fixed angle.

[0059] Specifically, the first connection mechanism 322c and the second connection mechanism 321a are detachably connected, and are detachably connected by studs and screw holes, so that the adjustment part 322 can be disassembled and replaced as needed, and can flexibly adapt to various working conditions. When a damaged adjustment part 322 needs to be disassembled, it is only necessary to loosen its nut and then unscrew the stud from the screw hole. Similarly, the third connection mechanism 321b and the fourth connection mechanism 313 are detachably connected, and are also detachably connected by studs and screw holes, so that the conveying part 321 can be disassembled and replaced as needed, and can flexibly adapt to various working conditions. When a damaged conveying part 321 needs to be disassembled, it is only necessary to loosen its nut and then unscrew the stud from the screw hole.

[0060] In a specific embodiment, the angle between a line from the side surface of the conveying portion 321 close to the main shaft 310 to the middle and a horizontal plane is in a range of 15° to 30°.

[0061] Specifically, the third connecting mechanism 321b is disposed at the middle position of the conveying portion 321, so that the entire conveying portion 321 is evenly stressed, thereby increasing the service life of the conveying portion 321. The angle between the line from the side of the conveying portion 321 close to the main shaft 310 to the middle and the horizontal plane is in the range of 15° to 30°. That is, there are two "notches" on both sides of the conveying part 321 close to one end of the main shaft 310. When the conveying part 321 is in actual operation, the conveying part 321 itself is in full contact with the viscous material. Since the third connecting mechanism 321b is arranged at the middle position of the conveying part 321, the pressure of the material on both sides of the conveying part 321 close to the bottom position is greater than the pressure at the middle position. In other words, the two ends of the conveying part 321 lack lateral support force. Long-term use will cause metal fatigue on both sides of the conveying part 321 close to one end of the main shaft 310, thereby causing the conveying part 321 itself to break. Therefore, the angle between the line from the side to the middle of the side of the conveying part 321 close to the main shaft 310 and the horizontal plane is set to be in the range of 15° to 30°, which effectively avoids the phenomenon that the pressure of the material on both sides of the conveying part 321 close to the bottom position is greater than the pressure at the middle position, and provides convenience and installation space for the process of installing the conveying part 321 on the main shaft 310, reducing the difficulty of installation.

[0062] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with the technical features disclosed in the embodiments of the present disclosure but are not limited to those with similar functions to form a technical solution.

Claims

1. A stirring, scraping and conveying device, characterized in that: The invention comprises a conveying pipeline (100), a conveying device (300) and a motor (200), wherein the conveying pipeline (100) is provided with a feed port (110) and a discharge port (120), the conveying device (300) is arranged inside the conveying pipeline (100), and the motor (200) drives the conveying device (300) to rotate; The conveying device (300) comprises a main shaft (310) and a conveying blade (320), wherein the conveying blade (320) is arranged on the outer surface of the main shaft (310) along a cylindrical spiral line; The conveying blade (320) comprises a conveying portion (321) and an adjusting portion (322); the conveying portion (321) is fixedly connected to the main shaft (310), and the angle between the length direction of the conveying portion (321) and the axis of the main shaft (310) is in the range of 30° to 45°; the adjusting portion (322) comprises a first adjusting portion (322a) and a second adjusting portion (322b); the length direction of the first adjusting portion (322a) is parallel to the length direction of the conveying portion (321), and the angle between the length direction of the second adjusting portion (322b) and the length direction of the conveying portion (321) is in the range of 15° to 30°, and the angle between the length direction of the second adjusting portion (322b) and the axis of the main shaft (310) is 15°.

2. The stirring, scraping and conveying device according to claim 1, characterized in that: The first adjusting portion (322a) and the second adjusting portion (322b) are alternately arranged on the cylindrical spiral line, and a plane passing through the axis of the main shaft (310) is defined as S, and the projections of all the second adjusting portions (322b) on the conveying device (300) on the plane S form a continuous straight line.

3. The stirring, scraping and conveying device according to claim 2, characterized in that: The conveying devices (300) are spaced evenly apart on the main shaft (310), and at least 11 groups of the conveying devices (300) are evenly distributed along the circumference of the main shaft (310).

4. The stirring, scraping and conveying device according to any one of claims 1 to 3, characterized in that: The main shaft (310) comprises a first section (311) and a second section (312), and the lead of the cylindrical helix of the first section (311) on the main shaft (310) is smaller than the lead of the cylindrical helix of the second section (312).

5. The stirring, scraping and conveying device according to claim 4, characterized in that: The adjusting portion (322) includes a first connecting mechanism (322c), and the conveying portion (321) includes a second connecting mechanism (321a), and the first connecting mechanism (322c) and the second connecting mechanism (321a) cooperate to enable the adjusting portion (322) to be detachably connected to the conveying portion (321).

6. The stirring, scraping and conveying device according to claim 5, characterized in that: The first connecting mechanism (322c) comprises a stud and an adjusting nut, the second connecting mechanism (321a) comprises a screw hole, the stud of the first connecting mechanism (322c) is threadedly connected to the screw hole of the second connecting mechanism (321a), and the adjusting nut is sleeved on the stud so that the adjusting portion (322) can be fixedly connected to the conveying portion (321) at a fixed angle.

7. The stirring, scraping and conveying device according to claim 4, characterized in that: The conveying portion (321) comprises a third connecting mechanism (321b), and a fourth connecting mechanism (313) is provided on the main shaft (310). The third connecting mechanism (321b) and the fourth connecting mechanism (313) cooperate with each other so that the conveying portion (321) can be detachably connected to the main shaft (310).

8. The stirring, scraping and conveying device according to claim 7, characterized in that: The third connecting mechanism (321b) comprises a stud and an adjusting nut, the fourth connecting mechanism (313) comprises a screw hole, the stud of the third connecting mechanism (321b) is threadedly connected to the screw hole of the fourth connecting mechanism (313), and the adjusting nut is sleeved on the stud so that the conveying part (321) can be fixedly connected to the main shaft (310) at a fixed angle.

9. The stirring, scraping and conveying device according to claim 8, characterized in that: The angle between a line from the side surface of the conveying portion (321) close to the main shaft (310) to the middle and a horizontal plane is in the range of 15° to 30°.

10. A conveying device, characterized in that: A stirring, scraping and conveying device as described in any one of claims 1 to 9 is used to convey materials from the feed port (110) to the discharge port (120).

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