CN218307486U - Material stirring device - Google Patents

Abstract

The utility model relates to a material stirring device, material stirring device includes: the device comprises a cylinder, a rotating shaft, a plurality of blades and a flow guide partition plate, wherein the cylinder is provided with a containing cavity for containing materials; the rotating shaft part is arranged in the accommodating cavity and can rotate around the axis of the rotating shaft part; the paddles are arranged in the accommodating cavity and fixedly connected with the rotating shaft, one ends of the paddles extend towards the direction close to the side wall of the cylinder body, and the paddles are used for applying acting force on the material so as to enable the material to be along the axial direction of the rotating shaft; each blade is provided with at least one flow guide partition plate, the flow guide partition plates are arranged on the side faces, used for applying acting force to the materials, of the blades in a blocking mode and located at the end, away from the rotating shaft, of the blades, and the flow guide partition plates are used for blocking the materials in the radial direction of the rotating shaft. Through above structure, realize leading-in top layer by the bottom fast with the material to flow to a section of thick bamboo center, improve the stirring efficiency of material.

Description

Material stirring device

Technical Field

The utility model relates to an irradiation processing technology field especially relates to a material stirring device.

Background

The irradiation processing is to irradiate the goods by using high-energy electron beams generated by an accelerator, so that pests, germs, microorganisms and the like in the goods are damaged and killed, the food preservation, the sterilization and the disinfection of medicines and medical and sanitary goods are realized, the physical and chemical properties of the goods can be obviously improved, and higher value is obtained. The electron irradiation processing has the advantages of high speed, high efficiency, no pollution and no waste, is a clean processing technology with low energy consumption, no residue and no environmental protection problem, has simple processing flow and is suitable for industrialized and large-scale production.

The preparation of new materials requires irradiation processing of an aqueous solution of the materials under an electron accelerator, and in order to improve the uniformity of the irradiation processing of the materials, the materials are usually stirred by stirring equipment. In the stirring equipment in the prior art, the paddle can apply force perpendicular to the surface of the paddle to the material in the rotating process, the side surface of the paddle is usually a curved surface, and the force components of the force applied by the paddle to the material are respectively in the axial direction and the radial direction of the stirring shaft, so that part of the material can flow in the radial direction of the paddle, and the part of the material flowing in the radial direction cannot move to the irradiation position, thereby affecting the stirring efficiency of the paddle, further affecting the irradiation efficiency of the material and even affecting the quality of a finished product.

SUMMERY OF THE UTILITY MODEL

Therefore, a material stirring device is needed to solve the problem that the material stirring efficiency is not high in the radiation processing process.

A material mixing device, comprising:

the barrel is provided with a containing cavity for containing the material;

the rotating shaft is partially arranged in the accommodating cavity and can rotate around the axis of the rotating shaft;

the paddles are arranged in the accommodating cavity and fixedly connected with the rotating shaft, one ends of the paddles extend towards the direction close to the cylinder body, and the paddles are used for applying acting force to the material so as to enable the material to flow along the axial direction in the rotation;

the guide baffle plates are arranged on the blades and are used for applying acting force to the materials and located at one ends, deviating from the rotating shaft, of the blades, and the guide baffle plates are used for blocking the materials to flow along the radial direction of the rotating shaft.

This technical scheme provides a material mixing device, includes barrel, rotation axis, a plurality of paddle and water conservancy diversion baffle. The cylinder is used for containing materials and the blades, and can limit the flow range of the materials in the cylinder, so that the range of the action of the blades on the materials is enlarged. Through with a plurality of paddles and rotation axis fixed connection for when the rotation axis rotated around self axis, a plurality of paddles that are fixed in the rotation axis can rotate with the rotation axis is synchronous, and then make the relative barrel of paddle ability rotatory, thereby make the paddle exert the effort to the material, in order to realize the stirring to the material. The one end of paddle extends to the direction that is close to the barrel lateral wall for when the rotation axis drives the paddle rotatory, the paddle can be followed to the material and flow, thereby makes the material flow along the axial direction of rotation axis. The paddle is provided with at least one flow guide partition plate, the flow guide partition plate is arranged on the side face, used for exerting acting force on the materials, of the paddle in a blocking mode, and used for exerting reverse acting force on the materials flowing along the extending direction of the paddle to change the flowing direction of the materials. The flow guide partition plate is arranged at one end, deviating from the rotating shaft, of the paddle and used for blocking the materials from flowing along the radial direction of the rotating shaft, so that the flowing direction of the materials to be stirred is changed to the greatest extent within the action range of the paddle, and the stirring efficiency of the materials is improved. Through above structure, block that the material flows along the radial direction of rotation axis to make the material furthest flow along axial direction, and then make the material fast by the leading-in top layer of bottom, and flow to a section of thick bamboo center, improve the stirring efficiency of material.

In one embodiment, the extending direction of the baffle plate is inclined to two edges of the blade along the rotating direction of the blade, and one side end of the baffle plate, which is perpendicular to the extending direction of the baffle plate, extends in a direction away from the blade.

In one embodiment, the baffle plate includes an extending section and two bending sections along the extending direction of the baffle plate, the two bending sections are respectively connected to two ends of the extending section, and the extending direction of the two bending sections is bent towards the direction close to the rotating shaft.

In one embodiment, the two spaced flow guide partition plates are arranged on the blade, and the extending directions of the two flow guide partition plates are parallel.

In one embodiment, the side surface of the paddle for applying acting force to the material forms an included angle with the inner bottom surface of the cylinder bottom.

In one embodiment, the edge of the paddle facing the inner bottom surface of the cylinder bottom is parallel to the inner bottom surface of the cylinder bottom, and a rolling piece is arranged at one end of the edge of the paddle facing the inner bottom surface of the cylinder bottom, which is far away from the rotating shaft, and the rolling piece is abutted against the inner bottom surface of the cylinder bottom and can roll relative to the inner bottom surface of the cylinder bottom.

In one embodiment, the cylinder is a double-interlayer cylinder, the double-interlayer cylinder is provided with an interlayer space surrounding the containing cavity, the outer wall of the double-interlayer cylinder is provided with a water inlet and a water outlet, and the water inlet and the water outlet are communicated with the interlayer space to form a circulating water circulation channel.

In one embodiment, the material stirring apparatus further comprises a driving mechanism, and the driving mechanism comprises:

the output shaft of the driving motor is connected with the rotating shaft;

the motor base is provided with an accommodating cavity with one open end, the driving motor is arranged in the accommodating cavity, and the motor base corresponds to one open end and is connected with the barrel.

In one embodiment, the motor base comprises a protective layer and a shielding layer, wherein the protective layer is arranged around the outer part of the shielding layer, and the shielding layer can shield electron beam radiation.

In one embodiment, the drive mechanism further comprises a seal assembly, the seal assembly comprising:

the shaft sleeve is arranged in the interlayer space, and two ends of the shaft sleeve are fixedly connected with the inner layer wall and the outer layer wall of the double-interlayer cylinder respectively;

the outer ring of the bearing is fixedly connected to the inner wall of the shaft sleeve, the inner ring of the bearing is fixedly connected with the rotating shaft, and the outer ring is rotationally connected with the inner ring;

the sealing element, the both ends of axle sleeve are provided with at least one respectively the sealing element, the sealing element is located the axle sleeve with between the rotation axis.

In one embodiment, the axis of the bushing coincides with the axis of the rotating shaft.

Drawings

Fig. 1 is a schematic structural diagram of a material stirring apparatus according to an embodiment of the present application;

fig. 2 is a schematic structural view of a blade in a material stirring apparatus provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a cylinder of a material stirring apparatus according to an embodiment of the present application;

FIG. 4 is an enlarged schematic view of A in FIG. 1;

fig. 5 is an enlarged structural diagram of B in fig. 3.

A cylinder 10; an inner barrel 101; an outer tub 102; a paddle 20; a baffle 30; a rotating shaft 40; a drive motor 50; a motor base 501; a shaft sleeve 60; a rolling member 70.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1 to 5, fig. 1 is a schematic structural view of a material stirring apparatus according to an embodiment of the present invention, and an embodiment of the present invention provides a material stirring apparatus, which includes a cylinder 10, a rotating shaft 40, a plurality of blades 20, and a flow guide partition plate 30, wherein the cylinder 10 has a containing cavity for containing a material; the rotating shaft 40 is partially arranged in the accommodating cavity and can rotate around the axis of the rotating shaft; the paddles 20 are arranged in the accommodating cavity and are fixedly connected with the rotating shaft 40, one end of each paddle 20 extends towards the direction close to the cylinder 10, and the paddles 20 are used for applying acting force on the material so as to enable the material to flow along the axial direction of the rotating shaft 40; each blade 20 is provided with at least one baffle plate 30, the baffle plate 30 is arranged on the side surface of the blade 20 for applying an acting force to the material and is located at one end of the blade 20 away from the rotating shaft 40, and the baffle plate 30 is used for blocking the material from flowing along the radial direction of the rotating shaft 40.

The technical scheme provides a material stirring device, which comprises a cylinder body 10, a rotating shaft 40, a plurality of blades 20 and a flow guide partition plate 30. The cylinder 10 is used for containing materials and the paddles 20, and can limit the flowing range of the materials in the cylinder, so that the range of action of the paddles 20 on the materials is enlarged. Through with a plurality of paddles 20 and rotation axis 40 fixed connection for rotation axis 40 is when rotating around self axis, and a plurality of paddles 20 that are fixed in rotation axis 40 can rotate with rotation axis 40 is synchronous, and then makes paddle 20 rotatory relatively barrel 10, thereby makes paddle 20 exert the effort to the material, in order to realize the stirring to the material. One end of the paddle 20 extends in a direction close to the sidewall of the cylinder 10, so that when the paddle 20 is rotated by the rotating shaft 40, the material can flow along the paddle 20, thereby allowing the material to flow along the axial direction of the rotating shaft 40. The blade 20 is provided with at least one baffle 30, which is arranged on the side surface of the blade 20 for applying acting force to the material, and is used for applying reverse acting force to the material flowing along the extending direction of the blade 20 to change the flowing direction of the material. The baffle plate 30 is arranged at one end of the blade 20, which is far away from the rotating shaft 40, and is used for blocking the material from flowing along the radial direction of the rotating shaft 40, so that the flowing direction of the stirred material is changed to a greater extent within the action range of the blade 20, and the stirring efficiency of the material is improved. Through above structure, block that the material flows along the radial direction of rotation axis 40 to make the material furthest flow along axial direction, and then make the material fast by the leading-in top layer of bottom, and flow to a section of thick bamboo center, improve the stirring efficiency of material.

The axial direction of the rotating shaft 40 is the direction indicated by L1 as shown in fig. 1, and the radial direction is the direction indicated by L2. Specifically, in the present embodiment, the axial direction of the rotary shaft 40 coincides with the axial direction of the cylinder 10, and accordingly, the radial direction coincides with the radial direction of the cylinder 10. The utility model provides a material stirring device can be arranged in any scene that only needs the material to stir along axial direction. Of course, the material stirring device can be used in irradiation processing. In order to realize the preparation of new materials, aqueous solution of materials needs to be irradiated and processed under an electron accelerator, and due to the limitation of irradiation penetration depth and irradiation range, the aqueous solution of materials needs to be quickly guided into the top layer from the bottom layer and flow to the center of the cylinder. And be applied to the irradiation processing with the material mixing device that this application provided, when carrying out the irradiation to the aqueous solution of material, accessible paddle 20 and flow guide baffle 30 exert the effort to the material, block the material radial flow for the material is the direction at electron accelerator place also that the top of barrel 10 is flowed from the bottom of barrel 10 to the at utmost, when improving material stirring efficiency, can improve the homogeneity of electron accelerator to the material irradiation, thereby improved material irradiation efficiency and finished product quality. The following description of the material stirring device is explained in terms of the material stirring device applied to irradiation processing.

In the present embodiment, the extending direction of the baffle plate 30 is inclined to the two edges of the blade 20 along the rotating direction thereof, and one side end of the baffle plate 30 perpendicular to the extending direction thereof extends in a direction away from the blade 20. By the arrangement, the extending direction of the baffle plate 30 is intersected with the flowing direction of the material along the blades 20, so that the baffle plate 30 can have reverse acting force on the material. And one side end of the diversion baffle plate 30, which is perpendicular to the extending direction of the diversion baffle plate, extends towards the direction far away from the blades 20, so that the diversion baffle plate 30 has a blocking effect on material flow, an acting force can be applied to the diversion baffle plate, the material is blocked and blocked, and the flowing direction of the material is changed.

Preferably, the baffle 30 may be a straight plate, an arc plate, or any bending plate, as long as it can block the material and change the flowing direction. In this application, flow guide partition plate 30 is a straight plate, and is easy to process and install.

The baffle plate 30 includes an extending section and two bending sections along the extending direction thereof, the two bending sections are respectively connected to two ends of the extending section, and the extending direction of the two bending sections is bent toward the direction close to the rotating shaft 40. Specifically, when the baffle plate 30 applies an acting force to the blocked material, since the extending directions of the extending sections and the bending sections of the baffle plate 30 are intersected, the acting forces in different directions can be applied to the material, and since the two bending sections are respectively connected to the two ends of the extending sections, and the extending directions of the two bending sections are bent towards the direction close to the rotating shaft 40, when the material is blocked by the extending sections and the bending sections, the material applied with the acting force by the bending sections still flows towards the direction close to the rotating shaft 40 along the blades 20, so that the material continues to flow along the axial direction by the acting force applied by the rotation of the blades 20, and flows towards the center of the cylinder, and the irradiation efficiency is improved.

The blade 20 is provided with two spaced baffle plates 30, and the extending directions of the two baffle plates 30 are parallel. Specifically, when the material flows along the blade 20 through one of the edges of the blade 20, since the paths of the material flowing through the blade 20 are different, and the distances from the rotating shaft 40 when the material flows through the blade 20 are also different, in order to reduce the possibility that the material directly flows out of the blade 20 without being blocked by the baffle 30, the two spaced baffles 30 are provided, so that the material flowing through different paths on the blade 20 can be blocked. And when the material flow is too big, block the back to the material by the baffle 30 that is close to rotation axis 40, when the required material that blocks surpassed baffle 30 area of action, can block all the other materials by the baffle 30 who keeps away from rotation axis 40, improve the efficiency that blocks the material, and then improve the stirring efficiency to the material.

The side of the paddle 20 that is used to apply force to the material forms an angle with the inner bottom surface of the base. The edge of the blade 20 facing the inner bottom surface of the cylinder bottom is parallel to the inner bottom surface of the cylinder bottom, and one end of the blade 20 facing the inner bottom surface of the cylinder bottom, which is far away from the rotating shaft 40, is provided with a rolling member 70, the rolling member 70 is abutted against the inner bottom surface of the cylinder bottom, and the rolling member 70 can roll relative to the inner bottom surface of the cylinder bottom.

Specifically, when the material flows along the paddle 20 through the edge of the paddle 20 close to the inner bottom surface of the cylinder bottom, the side surface of the paddle 20 for applying acting force to the material forms an included angle with the inner bottom surface of the cylinder bottom, so that the material can flow axially when flowing along the paddle 20. Because the edge of the inner bottom surface of the cylinder bottom on the paddle 20 is parallel to the inner bottom surface of the cylinder bottom, the material at the cylinder bottom can flow along the paddle 20 through the edge of the paddle 20, the material can be fully guided into the top layer from the bottom layer, and the stirring efficiency is improved. And the blade 20 is equipped with a rolling member 70 towards the edge of the inner bottom surface of the cylinder bottom far away from one end of the rotating shaft 40, the rolling member 70 is abutted against the inner bottom surface of the cylinder bottom, the rolling member 70 can roll relative to the inner bottom surface of the cylinder bottom, the rotating stability of the blade 20 is improved, and the stirring efficiency is improved. In this embodiment, the rolling member 70 is a pulley.

The barrel 10 is a double-interlayer barrel 10, the double-interlayer barrel 10 is provided with an interlayer space surrounding the holding cavity, a water inlet and a water outlet are arranged on the outer wall of the double-interlayer barrel 10, and the water inlet and the water outlet are communicated with the interlayer space to form a circulating water circulation channel.

Specifically, the double-interlayer cylinder 10 includes an inner cylinder 101 and an outer cylinder 102, the inner cylinder 101 and the outer cylinder 102 are arranged at an interval to form a coaxial double-layer cylinder structure, an inner cavity of the inner cylinder 101 is an accommodating cavity, the outer cylinder 102 and the inner cylinder 101 are arranged at an interval, and the interlayer space is defined between the inner side wall of the outer cylinder 102 and the outer side wall of the inner cylinder 101. Because two interlayer section of thick bamboo have one enclose locate the outlying interlayer space of holding the chamber, the bottom surface of inner tube 101 and urceolus 102 also has the interlayer space, and be provided with water inlet and delivery port on the outer wall of two interlayer section of thick bamboo 10 urceolus 102, it all is linked together with the interlayer space, make circulating cooling water can get into the interlayer space and flow through the delivery port by the water inlet, in order to form a circulating water circulation passageway, circulating water gets into the interlayer space from the water inlet and carries out the heat exchange with the inner tube 101 body, and take away the heat on the inner tube 101 body, then flow out from the delivery port, through the circulation of circulating water, make in material irradiation process, can cool off barrel 10, prevent barrel 10 temperature rise deformation.

The material stirring device further comprises a driving mechanism, the driving mechanism comprises a driving motor 50 and a motor base 501, an output shaft of the driving motor 50 is connected with the rotating shaft 40, the motor base 501 is provided with an accommodating cavity with an opening at one end, the driving motor 50 is arranged in the accommodating cavity, and one end of the motor base 501, corresponding to the opening, is connected with the barrel 10. The motor base 501 includes a protective layer and a shielding layer, the protective layer is surrounded outside the shielding layer, and the shielding layer can shield electron beam radiation.

Specifically, the driving motor 50 drives the rotating shaft 40 to rotate, so that the paddle 20 fixedly connected with the rotating shaft 40 rotates synchronously to stir the material. The driving motor 50 is disposed in the accommodating cavity of the motor base 501 having an opening at one end, and the end of the motor base 501 corresponding to the opening is connected to the cylinder 10, so that the rotating shaft 40 partially disposed in the accommodating cavity of the cylinder 10 can be connected to the motor. The motor base 501 comprises a protective layer and a shielding layer, wherein in the irradiation process, the shielding layer shields electron beam radiation, the driving motor 50 and the rotating shaft 40 are prevented from being affected by radiation to work performance, the protective layer is arranged around the outside of the shielding layer, and the shielding layer is protected from being damaged. In this embodiment, the shielding layer is a lead plate, and the protection layer is a stainless steel plate.

The drive mechanism further includes a seal assembly including a shaft sleeve 60, bearings and seals. The shaft sleeve 60 is arranged in the interlayer space, and two ends of the shaft sleeve 60 are respectively fixedly connected with the inner layer wall and the outer layer wall of the double-interlayer cylinder 10; the outer ring of the bearing is fixedly connected to the inner wall of the shaft sleeve 60, the inner ring is fixedly connected with the rotating shaft 40, and the outer ring is rotatably connected with the inner ring; the shaft sleeve 60 is provided at both ends thereof with at least one sealing member, respectively, which is provided between the shaft sleeve 60 and the rotary shaft 40. The axis of the sleeve 60 coincides with the axis of the rotary shaft 40.

Because the double-interlayer cylinder comprises the outer cylinder 102 and the inner cylinder 101, and an interlayer space is also arranged between the bottom surfaces of the inner cylinder 101 and the outer cylinder 102, the circulating cooling water circulates through each layer of space. And because the rotating shaft 40 is partially arranged in the accommodating cavity of the double-interlayer cylinder 10 and is connected with the driving motor 50 in the motor base 501. The sleeve 60 connects the outer bottom wall of the inner cylinder 101 and the inner bottom wall of the outer cylinder 102, and is sleeved outside the rotating shaft 40 to block the circulating cooling water in the interlayer space, and when the circulating cooling water flows in the interlayer space, the rotating shaft 40 is protected from being corroded to influence the rotation. The sealing element can be a sealing ring, certainly, a framework oil seal can also be adopted, in the embodiment, the latter is adopted, and parts needing to be lubricated in the bearing part are isolated from the external environment by adopting the framework oil seal, so that the lubricating oil is prevented from leaking into the material to influence the quality of a finished product. At this time, the rotating shaft 40 is sunk below the liquid level, so that the high-energy electron beams are prevented from directly irradiating the top of the shaft end to cause overhigh temperature rise. Wherein the axis of axle sleeve 60 and the coincidence of the axis of rotation axis 40, that is, through the axiality of control axle sleeve 60 and rotation axis 40 in order effectively to guarantee the rotatory stationarity of paddle 20 in the course of working, improve stirring efficiency.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (11)

1. The utility model provides a material mixing device which characterized in that, material mixing device includes:

the barrel is provided with a containing cavity for containing the material;

the rotating shaft is partially arranged in the accommodating cavity and can rotate around the axis of the rotating shaft;

the paddles are arranged in the accommodating cavity and fixedly connected with the rotating shaft, one ends of the paddles extend towards the direction close to the side wall of the cylinder body, and the paddles are used for applying acting force on the material so as to enable the material to flow along the axial direction of the rotating shaft;

the guide baffle plates are arranged on the blades and are used for applying acting force to the materials and located at one ends, deviating from the rotating shaft, of the blades, and the guide baffle plates are used for blocking the materials to flow along the radial direction of the rotating shaft.

2. The material stirring device as recited in claim 1, wherein the extending direction of the baffle plate is inclined to two edges of the blade along the rotating direction thereof, and one side end of the baffle plate perpendicular to the extending direction thereof extends in a direction away from the blade.

3. The material stirring device as recited in claim 2, wherein the baffle plate includes an extending section and two bending sections along an extending direction thereof, the two bending sections are respectively connected to two ends of the extending section, and the extending direction of the two bending sections is bent toward a direction close to the rotating shaft.

4. The material stirring device as recited in claim 1, wherein the paddle is provided with two spaced baffle plates, and the extending directions of the two baffle plates are parallel.

5. A material mixing apparatus according to any one of claims 1 to 4, wherein the side of the blade on which the force is applied to the material forms an angle with the inner bottom surface of the base.

6. The material mixing apparatus as claimed in claim 5, wherein the edge of the blade facing the inner bottom surface of the drum base is parallel to the inner bottom surface of the drum base, and a roller is provided on the blade at an end of the edge facing the inner bottom surface of the drum base away from the rotation axis, the roller abutting against the inner bottom surface of the drum base, and the roller is capable of rolling relative to the inner bottom surface of the drum base.

7. The material stirring device according to any one of claims 1 to 4, wherein the barrel is a double-interlayer barrel, the double-interlayer barrel has an interlayer space surrounding the accommodating chamber, a water inlet and a water outlet are arranged on the outer wall of the double-interlayer barrel, and the water inlet and the water outlet are both communicated with the interlayer space to form a circulating water circulation channel.

8. The material mixing device of claim 7, further comprising a drive mechanism, the drive mechanism comprising:

the output shaft of the driving motor is connected with the rotating shaft;

the motor base is provided with an accommodating cavity with one open end, the driving motor is arranged in the accommodating cavity, and the motor base corresponds to one open end and is connected with the barrel.

9. The material mixing device of claim 8, wherein the motor base comprises a protective layer and a shielding layer, the protective layer is arranged around the shielding layer, and the shielding layer can shield electron beam radiation.

10. The material mixing device of claim 8, wherein the drive mechanism further comprises a seal assembly, the seal assembly comprising:

the shaft sleeve is arranged in the interlayer space, and two ends of the shaft sleeve are fixedly connected with the inner layer wall and the outer layer wall of the double-interlayer cylinder respectively;

the outer ring of the bearing is fixedly connected to the inner wall of the shaft sleeve, the inner ring of the bearing is fixedly connected with the rotating shaft, and the outer ring is rotationally connected with the inner ring;

the sealing element, the both ends of axle sleeve are provided with at least one respectively the sealing element, the sealing element is located the axle sleeve with between the rotation axis.

11. The material mixing device as recited in claim 10, wherein an axis of the bushing coincides with an axis of the rotating shaft.

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