Material mixing equipment

Abstract

The utility model relates to the technical field of material mixing, and provides material mixing equipment which comprises a material barrel and a rotating shaft transversely arranged in the material barrel, a material mixing unit and a material scraping unit are arranged on the rotating shaft, the material scraping unit comprises a first supporting rod and a first material scraping piece, one end of the first supporting rod is connected to the rotating shaft, and the first supporting rod is arranged in the radial direction of the rotating shaft; the other end of the first supporting rod is connected to a first scraping piece, the first scraping piece is provided with a first scraping face facing the inner wall face of the charging barrel, the first scraping face is provided with a first scraping structure and a first load reducing structure, the first scraping structure is used for abutting against the inner wall face of the charging barrel, and a gap is formed between the first load reducing structure and the inner wall face of the charging barrel; according to the material mixing equipment, material caking can be effectively avoided, so that the problems of unqualified material mixing, deformation of the helical ribbon and the rotating shaft, wastewater treatment and the like caused by material caking are effectively avoided, and on the basis of ensuring the cleaning effect, the load of the first material scraping piece is reduced, and deformation of the first material scraping piece is avoided.

Description

Technical Field

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

[0002] Mixing equipment is a solid dual-material or multi-material mixing equipment with a wide range of applications. Among them, the screw ribbon mixer is a commonly used mechanical mixing and stirring equipment, which plays a dominant role in the field of solid material mixing. Due to the diversity of various raw materials and small materials, the materials may absorb moisture and form lumps during the mixing process. As a result, after the use of current mixing equipment, the inner wall of the barrel often forms lumps and material accumulation. Over time, the accumulated material becomes thicker and harder. Figures 1 to 4 .

[0003] If the accumulated material on the inner wall of the barrel is not cleaned in time, the following problems may occur when the mixing equipment is working:

[0004] 1. When producing powder products, the outer spiral ribbon scrapes the agglomerates, causing the agglomerates on the inner wall of the barrel to fall off, resulting in the appearance of lumps of material in the finished product, which may cause the local content of the finished product to fail to meet the quality standards, and the appearance and content of the finished product may not meet the quality standards, causing quality problems.

[0005] 2. When the outer spiral belt is working, it rubs and squeezes against the material on the inner wall. When the material is hard, the outer spiral belt will bend and deform.

[0006] 3. When the outer spiral belt is working, it rubs and squeezes against the material on the inner wall. The combination of axial and radial forces may cause the rotating shaft to deform, and further damage the bearings and seals connected to the rotating shaft.

[0007] To address this issue, an integral scraper is typically added to the barrel to scrape and clean the inner wall. However, this scraper is subject to heavy loads, easily deforms, and has minimal cleaning effectiveness. Ultimately, manual or mechanical water washing of the inner wall is necessary, which generates wastewater, raising environmental and cost issues for wastewater treatment. Utility Model Content

[0008] The purpose of the present utility model is to overcome at least one of the deficiencies of the above-mentioned prior art and to provide a mixing device which can effectively avoid material agglomeration, thereby effectively avoiding problems such as unqualified mixing, deformation of the spiral ribbon and the rotating shaft, and wastewater treatment caused by material agglomeration. In addition, the mixing device reduces the load of the first scraper while ensuring the cleaning effect, thereby avoiding deformation of the first scraper.

[0009] The technical solution of the present utility model is: a mixing device, comprising a barrel and a rotating shaft horizontally arranged in the barrel, a mixing unit and a scraping unit are provided on the rotating shaft, the scraping unit comprises a first support rod and a first scraping member, one end of the first support rod is connected to the rotating shaft, and the first support rod is arranged along the radial direction of the rotating shaft, the other end of the first support rod is connected to the first scraping member, the first scraping member has a first scraping surface facing the inner wall surface of the barrel, the first scraping surface is provided with a first scraping structure and a first load-reducing structure, the first scraping structure is used to abut against the inner wall surface of the barrel, and there is a gap between the first load-reducing structure and the inner wall surface of the barrel.

[0010] As a further improvement of the present technical solution, the first scraping surface is in the shape of an arc surface.

[0011] As a further improvement of the present technical solution, the material barrel includes a mixing barrel portion, the mixing barrel portion is cylindrical and is arranged transversely, and the rotating shaft is arranged transversely on the central axis of the mixing barrel portion.

[0012] As a further improvement of the present technical solution, the scraper unit includes a second support rod and a second scraper member, one end of the second support rod is connected to the rotating shaft, the second support rod is arranged along the radial direction of the rotating shaft, the second support rod is arranged at an angle to the first support rod, and the other end of the second support rod is connected to the second scraper member, the second scraper member has a second scraping surface, the second scraping surface faces the inner wall surface of the barrel and is in the shape of an arc surface, the second scraper surface is provided with a second scraping structure and a second load-reducing structure, the second scraper structure is used to abut against the inner wall surface of the barrel, and there is a gap between the second load-reducing structure and the inner wall surface of the barrel.

[0013] As a further improvement of the present technical solution, the first scraper is set at an angle to the central axis of the barrel, and forms an angle α; the second scraper is set at an angle to the central axis of the barrel, and forms an angle β.

[0014] As a further improvement of the present technical solution, the inner wall of the barrel has a left wall surface and a right wall surface relative to each other, the rotating shaft has a left end close to the left wall surface and a right end close to the right wall surface, the first support rod is arranged close to the left end and / or the right end, the first scraper is arranged facing the inner wall of the barrel, and the first scraper is provided with an abutment structure on the side close to the left wall surface and / or the right wall surface, and the abutment structure is used to abut against the left wall surface and / or the right wall surface.

[0015] As a further improvement of the present technical solution, the two first support rods are respectively arranged close to the left end and the right end of the rotating shaft, and the two first support rods are arranged in parallel or at 180°, and a plurality of second support rods and second scraping members are evenly distributed between the two first support rods, and each of the second support rods is arranged at an angle to the first support rod.

[0016] As a further improvement of the present technical solution, the first scraper structure is provided in the middle of the first scraper surface, and the first load-reducing structure is provided at both ends of the first scraper surface, and the gap between the first load-reducing structure and the inner wall of the barrel gradually increases along the direction from the first scraper structure to the first load-reducing structure; the second scraper structure is provided in the middle of the second scraper surface, and the second load-reducing structure is provided at both ends of the second scraper surface, and the gap between the second load-reducing structure and the inner wall of the barrel gradually increases along the direction from the second scraper structure to the second load-reducing structure.

[0017] As a further improvement of the present technical solution, the first scraper member includes a first reinforcing plate, a second reinforcing plate and a first wear-resistant plate, one end of the first reinforcing plate and the second reinforcing plate clamps one end of the first wear-resistant plate, and the first reinforcing plate, the second reinforcing plate and the first wear-resistant plate are connected by a first fastener; the second scraper member includes a third reinforcing plate, a fourth reinforcing plate and the second wear-resistant plate, one end of the third reinforcing plate and the fourth reinforcing plate clamps one end of the second wear-resistant plate, and the third reinforcing plate, the fourth reinforcing plate and the second wear-resistant plate are connected by a second fastener.

[0018] As a further improvement of the present technical solution, the inner wall of the barrel has a relative left wall surface and a right wall surface, the rotating shaft has a left end close to the left wall surface and a right end close to the right wall surface, the scraper unit includes a third support rod and a third scraper member, one end of the third support rod is connected to the left end and / or right end of the rotating shaft, the third support rod is arranged along the radial direction of the rotating shaft, the third scraper member is arranged on the surface of the third support rod close to the left end and / or right end, and the third scraper member is arranged along the direction from one end to the other end of the third support rod, for scraping the left wall surface and / or right wall surface of the barrel.

[0019] The utility model provides a mixing device, comprising a barrel and a rotating shaft disposed transversely within the barrel, wherein a mixing unit and a scraping unit are disposed on the rotating shaft. The scraping unit comprises a first support rod and a first scraping member, wherein one end of the first support rod is connected to the rotating shaft and is disposed radially along the rotating shaft, and the other end of the first support rod is connected to the first scraping member. The first scraping member has a first scraping surface facing the inner wall of the barrel, and the first scraping surface is provided with a first scraping structure, which is configured to abut against the inner wall of the barrel. When the rotating shaft rotates, the first scraper provided on the rotating shaft also rotates, so that the first scraper structure can scrape the inner wall surface of the barrel, thereby effectively avoiding material agglomeration, and further effectively avoiding problems such as unqualified mixing, deformation of the spiral ribbon and the rotating shaft, and wastewater treatment caused by material agglomeration; and, the first scraper surface is provided with a first load-reducing structure, and there is a gap between the first load-reducing structure and the inner wall surface of the barrel, so that when the rotating shaft rotates, the first scraper does not abut the inner wall surface of the barrel as a whole, thereby reducing the load of the first scraper while ensuring the cleaning effect, and avoiding deformation of the first scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of a mixing device in the prior art;

[0022] Figure 2 It is a side view schematic diagram of a mixing device in the prior art;

[0023] Figure 3 It is a schematic diagram of a rotating shaft, a mixing unit and a scraping unit of a mixing device in the prior art;

[0024] Figure 4 This is a schematic diagram of the material arrangement of a barrel of a mixing device in the prior art;

[0025] Figure 5 This is a schematic diagram of a mixing device provided in an embodiment of the present utility model;

[0026] Figure 6 It is a side view schematic diagram of the barrel of the mixing equipment provided by an embodiment of the utility model;

[0027] Figure 7 This is a simplified structural diagram of a barrel of a mixing device provided by an embodiment of the present utility model;

[0028] Figure 8 yes Figure 5 A partial enlarged view of point A in the middle;

[0029] Figure 9 It is a schematic diagram of the rotating shaft, mixing unit and scraping unit of the mixing equipment provided by the embodiment of the utility model;

[0030] Figure 10 yes Figure 9 A partial enlarged view of point B in the middle;

[0031] Figure 11 It is a side view schematic diagram of the mixing equipment provided by an embodiment of the utility model;

[0032] Figure 12 yes Figure 11 A partial enlarged view of point C in the middle;

[0033] Figure 13 This is a schematic diagram of the working of the mixing equipment provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0035] It should be noted that the terms "setting" and "connecting" should be understood in a broad sense. For example, it can be directly setting or connecting, or it can be indirectly setting or connecting through a central component or a central structure.

[0036] In addition, if there are terms such as "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientation or positional relationships in the embodiments of the present invention, these are based on the orientation or positional relationships shown in the drawings or the conventional placement state or usage state, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device or element referred to must have a specific orientation or positional relationship, nor must it be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner unless there is any contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in the present invention will not be described separately.

[0038] This utility model provides a mixing device, please refer to Figures 5 to 13 The mixing device 10 includes a barrel 1 and a rotating shaft 2 arranged transversely (from one side of the barrel 1 to the other side) in the barrel 1, and a mixing unit 3 and a scraping unit 4 are provided on the rotating shaft 2. The mixing unit 3 can drive the material to move to achieve mixing when the rotating shaft 2 rotates, and the scraping unit 4 can scrape the inner wall surface of the barrel 1 when the rotating shaft 2 rotates to avoid material agglomeration. Specifically, the scraping unit 4 includes a first support rod 41 and a first scraping member 42. One end of the first support rod 41 is connected to the rotating shaft 2, and the first support rod 41 is arranged along the radial direction of the rotating shaft 2. The other end of the first support rod 41 is connected to the first scraping member 42. The first scraping member 42 has a first scraping surface facing the inner wall surface of the barrel 1. The first scraping surface is provided with a first scraping structure 421. The first scraping structure 421 is used to abut against the inner wall surface of the barrel 1. When the rotating shaft 2 rotates along its own axis, the first scraper 42 provided on the rotating shaft 2 also rotates, so that the first scraper structure 421 can scrape the inner wall surface of the barrel 1, thereby effectively avoiding material agglomeration, and further effectively avoiding problems such as unqualified mixing, deformation of the spiral ribbon and the rotating shaft 2, and wastewater treatment caused by material agglomeration. In addition, the first scraper surface is also provided with a first load-reducing structure 422. There is a gap between the first load-reducing structure 422 and the inner wall surface of the barrel 1. This means that when the rotating shaft 2 rotates, the first load-reducing structure 422 does not abut against the inner surface of the barrel 1, that is, the first scraper 42 does not abut against the inner wall surface of the barrel 1 as a whole. Therefore, while ensuring the cleaning effect, the load of the first scraper 42 is reduced, effectively avoiding the deformation of the first scraper 42.

[0039] It should be noted that the first scraping surface can be in the shape of an arc surface. This configuration can make the first scraping surface transition smooth, so that the force applied to the first scraping member 42 during scraping can also transition smoothly, thereby further avoiding deformation of the first scraping member 42.

[0040] It can be understood that the cross-section of the barrel 1 can be a circular structure, so that each spiral belt is in contact with the inner wall surface of the barrel 1 for more than 80% of the operation process to achieve scraping. In this way, during the production operation, there will be basically no material accumulation on the inner wall surface of the barrel 1 (dynamic operation), achieving a self-cleaning effect, and solving the wall caking problem of the mixing equipment 10 from the source.

[0041] For barrel 1, see Figures 5 to 7Optionally, the barrel 1 may include a mixing barrel portion 11, which may be cylindrical and disposed transversely. The present invention configures the mixing barrel portion 11 to be cylindrical, so that the mixing unit 3 can clean the inner wall of the barrel 1 when rotating. The present invention can clean more than 95% of the accumulated material on the inner wall, so that the material will not form agglomerates on the inner wall. Furthermore, the rotating shaft 2 may be disposed transversely on the central axis of the mixing barrel portion 11. The configuration of the rotating shaft 2 and the mixing barrel portion 11 cooperates with each other, which not only facilitates installation, but also enables the rotation center lines of the mixing unit 3 and the scraping unit 4 to coincide with the central axis of the mixing barrel portion 11, facilitating mixing and scraping.

[0042] It is understood that the above is only a preferred embodiment of the barrel 1 and the rotating shaft 2. The specific arrangement of the barrel 1 and the rotating shaft 2 of the present invention is not limited thereto, as long as the mixing and scraping of materials can be achieved. For example, to improve installation efficiency, the rotating shaft 2 can also be arranged slightly lower than the central axis of the mixing barrel 11. This requires lower installation accuracy and improves installation efficiency. In addition, since the material will fall from the upper part of the mixing barrel 11 to the lower part under the action of gravity, thereby accumulating in the lower part, this arrangement can ensure that the lower part of the mixing barrel 11 is scraped, thereby effectively avoiding the problem of material agglomeration.

[0043] Optional, combined Figure 13 The barrel 1 may further include a feeding barrel 12 disposed above the mixing barrel 11. The upper surface of the feeding barrel 12 may be provided with a feeding port 13, and the lower surface of the feeding barrel 12 may be provided with a discharging port 14, thereby facilitating the entry and exit of materials. Of course, in other embodiments, the feeding barrel 12 may not be provided, and the feeding port 13 may be directly provided on the upper surface of the mixing barrel 11. Here, the upper side refers to the side opposite to the direction of gravity when the mixing device 10 is in use, thereby facilitating the entry of materials into the barrel 1 by gravity.

[0044] For mixing unit 3, please combine Figures 5 to 8 Optionally, the mixing unit 3 may include at least one first mixing support rod 31, one end of the first mixing support rod 31 is connected to the rotating shaft 2, and the first mixing support rod 31 is arranged along the radial direction of the rotating shaft 2, and the other end of the first mixing support rod 31 is connected to the outer spiral ribbon 32, and the circumferential surface formed by the outer edge of the outer spiral ribbon 32 is coaxial with the rotating shaft 2. When the rotating shaft 2 rotates, the first mixing support rod 31 and the outer spiral ribbon 32 rotate accordingly, and drive the material to move, thereby achieving mixing of the material.

[0045] Furthermore, the outer spiral ribbon 32 may be provided with a first feeding structure, which is used to set the outer spiral ribbon 32 at an angle, so that when the outer spiral ribbon 32 rotates, it drives the material to move toward the discharge port 14. It is understood that the specific structure of the first feeding structure can be set according to the position of the discharge port 14, as long as it can facilitate discharge.

[0046] In practical applications, taking into account the diameter of the barrel 1 and the current processing accuracy of the outer spiral ribbon 32 (such as the stretching, processing, and welding of the outer spiral ribbon 32), the minimum distance between the outer spiral ribbon 32 and the inner wall of the barrel 1 can be 3 to 15 mm. This can avoid scratching the inner wall of the barrel 1 and improve the uniformity of the mixing. Of course, in practical applications, if the technology can achieve better processing accuracy, the minimum distance between the outer spiral ribbon 32 and the inner wall of the barrel 1 should be as small as possible.

[0047] In practical applications, the pitch of the outer spiral ribbon can be the same as the diameter of the outer spiral blade. Under the same speed conditions, the larger the pitch, the better the stirring effect of the spiral blade, but the heavier the load on the spiral blade. Conversely, the smaller the pitch, the worse the stirring effect, but the lighter the load on the spiral blade.

[0048] Optionally, the mixing unit 3 may include at least one second mixing support rod 33, one end of the second mixing support rod 33 is connected to the rotating shaft 2, and the second mixing support rod 33 is arranged along the radial direction of the rotating shaft 2, and the other end of the second mixing support rod 33 is connected to the inner spiral ribbon 34, and the circumferential surface formed by the outer edge of the inner spiral ribbon 34 is coaxial with the rotating shaft 2, so that when the rotating shaft 2 rotates, the second mixing support rod 33 and the inner spiral ribbon 34 rotate accordingly, thereby driving the material to a certain extent, and further realizing the mixing of the material.

[0049] It is understood that the number of second mixing rods 33 and inner spiral ribbons 34 can be determined based on the number of material types in the actual application. For example, when mixing two materials, one outer spiral ribbon 32 and one inner spiral ribbon 34 can be used. When mixing three or more materials, one outer spiral ribbon 32 and two inner spiral ribbons 34 can be used.

[0050] Specifically, the blade rotation directions of the outer spiral ribbon 32 and the inner spiral ribbon 34 can be opposite. When the rotating shaft 2 rotates, the outer spiral ribbon 32 can accelerate the material to move toward a first direction (for example, to the left), and the inner spiral ribbon 34 can accelerate the material to move toward a second direction opposite to the first direction (for example, to the right), thereby improving the uniformity of material mixing.

[0051] For scraper unit 4, see Figures 5 to 13Optionally, the scraper unit 4 may further include a second support rod 43 and a second scraper member 44, one end of the second support rod 43 is connected to the rotating shaft 2, the second support rod 43 is arranged along the radial direction of the rotating shaft 2, the second support rod 43 is arranged at an angle to the first support rod 41, and the other end of the second support rod 43 is connected to the second scraper member 44, the second scraper member 44 has a second scraping surface, the second scraping surface faces the inner wall surface of the barrel 1 and may be in the shape of an arc surface, the second scraping surface may be provided with a second scraping structure 441 and a second load-reducing structure 442, the second scraper structure 441 is used to abut against the inner wall surface of the barrel 1, and there is a gap between the second load-reducing structure 442 and the inner wall surface of the barrel 1. When the rotating shaft 2 rotates, the second scraper 44 provided on the rotating shaft 2 also rotates, so that the second scraper structure 441 can scrape the inner wall surface of the barrel 1, thereby effectively avoiding material agglomeration, and further effectively avoiding problems such as unqualified mixing, deformation of the spiral ribbon and the rotating shaft 2, and wastewater treatment caused by material agglomeration; and, the second scraper 44 in the mixing equipment 10 can be in an arc shape, which makes the second scraper 44 not abut the inner wall surface of the barrel 1 as a whole when the rotating shaft 2 rotates, thereby reducing the load of the second scraper 44 while ensuring the cleaning effect, and because the second scraper 44 has a smooth transition, the force applied to the second scraper 44 during scraping is also relatively smooth, thereby further avoiding deformation of the second scraper 44. Moreover, the first scraper member 42 and the second scraper member 44 in the present invention are of a fault-type scraper structure. Compared with the integral scraper structure (i.e., a continuous scraper plate) in the prior art, the installation position and accuracy of the present invention are easier to control, and the force-bearing area is greatly reduced, thereby extending the service life of the first scraper member 42 and the second scraper member 44.

[0052] Optionally, the first scraper 42 and the central axis of the barrel 1 can be set at an angle to form an included angle α, that is, the first scraper 42 and the projection of the central axis of the barrel 1 on the horizontal plane form an included angle α; the second scraper 44 and the central axis of the barrel 1 can be set at an angle to form an included angle β, that is, the second scraper 44 and the projection of the central axis of the barrel 1 on the horizontal plane form an included angle β, so that the material cleaned from the inner wall of the barrel 1 will be transported to the discharge port 14 in sections by the first scraper 42 and the second scraper 44 for discharge, the cleaning effect is greatly improved, and the problem of material agglomeration is effectively avoided.

[0053] In practical applications, the angle α can range from 30 to 60 degrees, and the angle β can range from 30 to 60 degrees. Furthermore, the first scraper 42 and the second scraper 44 can be provided with a second feeding structure, so that the first scraper 42 and the second scraper 44 can align with the feeding direction of the external screw and jointly feed the material to the discharge port 14 , thereby ensuring that the material scraped off during the scraping process is evenly mixed and then discharged from the discharge port 14 .

[0054] Optionally, the inner wall of the barrel 1 has a relative left wall surface (the inner wall surface on the left side) and a right wall surface (the inner wall surface on the right side), the rotating shaft 2 has a left end close to the left wall surface and a right end close to the right wall surface, the first support rod 41 is arranged close to the left end and / or the right end, the first scraper 42 is arranged facing the inner wall of the barrel 1 (the inner wall surface connecting the left wall surface and the right wall surface), and the first scraper 42 is provided with an abutment structure 423 on the side close to the left wall surface and / or the right wall surface, and the abutment structure 423 is used to abut against the left wall surface and / or the right wall surface, so that when the rotating shaft 2 rotates, the first scraper 42 provided on the rotating shaft 2 can not only scrape the inner wall of the barrel 1, but also scrape the left wall surface and / or the right wall surface of the barrel 1.

[0055] In some embodiments, two first support rods 41 can be respectively arranged near the left and right ends of the rotating shaft 2, and the two first support rods 41 are parallel (that is, located on the same straight line, and the first scraper 42 points in the same direction) or arranged at 180 degrees (that is, located on the same straight line, but the first scraper 42 points in opposite directions, such as upward and downward). A plurality of second support rods 43 and second scraper 44 are evenly distributed between the two first support rods 41, so that when the rotating shaft 2 rotates, the first scraper 42 and second scraper 44 arranged on the rotating shaft 2 can scrape the entire inner wall surface of the barrel 1. Furthermore, each second support rod 43 is arranged at an angle to the first support rod 41 to avoid overcrowding. For example, the second support rod 43 can be set at 0 degrees (in the same direction as gravity), and the first support rod 41 can be set at 90 degrees (perpendicular to the direction of gravity and the horizontal direction). Of course, the above is only a preferred embodiment of the present invention, and the specific arrangement of the first support rod, the second support rod, the first scraper and the second scraper is not limited thereto, as long as scraping can be achieved.

[0056] Preferably, in order to ensure the reliability of scraping, the first scraper 42 and the second scraper 44 can be densely arranged to form a complete covering structure that covers the inner wall of the barrel 1. That is, when the first support rod 41 and the second support rod 43 are rotated to 0 degrees (the same as the direction of gravity), the projections of the multiple first scraper 42 and the second scraper 44 in the horizontal direction (the direction perpendicular to the direction of gravity) are continuous, and can be connected from the leftmost to the rightmost side of the barrel 1, to ensure that when the first scraper 42 and the second scraper 44 rotate to scrape, they can cover the inner wall of the barrel 1 and scrape the entire inner wall of the barrel 1. Furthermore, the multiple second support rods 43 can be set at an angle to avoid overcrowding. For example, of two adjacent second support rods 43, one second support rod 43 can be set at 0 degrees (the same as the direction of gravity), and the other can be set at 180 degrees (opposite to the direction of gravity).

[0057] Optionally, the inner wall of the barrel 1 has relative left and right wall surfaces, the rotating shaft 2 has a left end close to the left wall surface and a right end close to the right wall surface, and the scraper unit 4 can also include a third support rod 45 and a third scraper 46, one end of the third support rod 45 is connected to the left end and / or right end of the rotating shaft 2, the third support rod 45 is arranged along the radial direction of the rotating shaft 2, the third scraper 46 is arranged on the surface of the third support rod 45 close to the left end and / or right end, and the third scraper 46 is arranged along the direction from one end to the other end of the third support rod 45, for scraping the left wall surface and / or right wall surface of the barrel 1.

[0058] For the first scraper 42 and the second scraper 44, optionally, a first scraper structure 421 can be provided in the middle of the first scraper 42, and first load-reducing structures 422 for reducing the load of the first scraper 42 can be provided on both sides of the first scraper 42. Along the direction from the first scraper structure 421 to the first load-reducing structure 422, the gap between the first load-reducing structure 422 and the inner wall of the barrel 1 gradually increases. When scraping, the first scraper structure 421 abuts against the barrel 1, and the first load-reducing structure 422 does not abut against the barrel 1, thereby effectively reducing the load of the first scraper 42. In addition, this arrangement makes the force on the first scraper 42 more balanced when scraping, thereby avoiding deformation of the first scraper 42.

[0059] Similarly, a second scraper structure 441 can be provided in the middle of the second scraper 44, and second load-reducing structures 442 for reducing the load of the second scraper 44 can be provided on both sides of the second scraper 44. Along the direction from the second scraper structure 441 to the second load-reducing structure 442, the gap between the second load-reducing structure 442 and the inner wall of the barrel 1 gradually increases. When scraping, the second scraper structure 441 abuts against the barrel 1, and the second load-reducing structure 442 does not abut against the barrel 1, thereby effectively reducing the load of the second scraper 44. This arrangement makes the force on the second scraper 44 more balanced when scraping, thereby avoiding deformation of the second scraper 44.

[0060] Optionally, the first scraper 42 may include a first reinforcing plate 424, a second reinforcing plate 425, and a first wear-resistant plate 426. One end of the first reinforcing plate 424 and the second reinforcing plate 425 clamps one end of the first wear-resistant plate 426, thereby increasing the service life of the first scraper 42. The first reinforcing plate 424, the second reinforcing plate 425, and the first wear-resistant plate 426 may be connected by a first fastener such as a bolt. The first fasteners used to secure the first reinforcing plate 424, the second reinforcing plate 425 to the first wear-resistant plate 426 not only make the connection more reliable, the scraping cleaner, and the efficiency higher, but also allow the first fastener to be removed and replaced after the first wear-resistant plate 426 is worn, making disassembly and assembly convenient.

[0061] Similarly, the second scraper 44 may include a third reinforcing plate 443, a fourth reinforcing plate 444, and a second wear-resistant plate 445. One end of the third reinforcing plate 443 and the fourth reinforcing plate 444 clamps one end of the second wear-resistant plate 445, thereby extending the service life of the second scraper 44. The third and fourth reinforcing plates 443, 444, and the second wear-resistant plate 445 may be connected by a second fastener. The second fastener secures the third and fourth reinforcing plates 443, 444 to the second wear-resistant plate 445, making the connection more reliable, the scraping cleaner, and the efficiency higher. Furthermore, if the second wear-resistant plate 445 is worn, the second fastener can be removed and replaced, making assembly and disassembly easier.

[0062] Specifically, the first reinforcing plate 424, the second reinforcing plate 425, the third reinforcing plate 443, and the fourth reinforcing plate 444 can be made of metal parts such as steel, which have high strength and can increase the strength of the first scraper member 42 and the second scraper member 44. The first wear-resistant plate 426 and the second wear-resistant plate 445 can be wear-resistant metal parts made of tetrafluoroethylene, silicone, etc., which have good flexibility and wear resistance and facilitate scraping.

[0063] In some embodiments, see Figure 5 The mixing device 10 may further include a bearing 5, a sealing member 6, a support frame 7, a coupling 8, and a driving device 9. The left wall and / or right wall of the barrel 1 may be provided with a mounting opening, and the left end and / or right end of the rotating shaft 2 may be plugged and mounted in the mounting opening of the barrel 1. The bearing 5 and the sealing member 6 are connected to the left end and / or right end of the rotating shaft 2 and are disposed in the mounting opening to achieve the bearing function of the bearing and the sealing function of the sealing member 6. The barrel 1, the coupling 8, and the driving device 9 are all disposed on the support frame 7. The two ends of the coupling 8 are respectively connected to the rotating shaft 2 and the driving device 9 to achieve transmission between the driving device 9 and the rotating shaft 2. The driving device 9 may be connected to a motor or may include a motor to achieve transmission or drive of the rotating shaft 2.

[0064] In specific applications, the mixing equipment 10 may include a blowing device, and the suction device is used to control the movement of materials through air supply and / or negative pressure, so as to facilitate keeping the mixing equipment 10 dry, and facilitate mixing, discharging and avoiding material accumulation. For example, when the mixing equipment 10 is not in use, the blowing device can control the air mixing in the barrel 1 to reduce the humidity of the mixing equipment 10, effectively avoiding material agglomeration. For example, when mixing, the movement of materials is controlled to make the materials more evenly mixed. For example, the blowing device can be connected to the discharge port 14 or the inner wall surface of the barrel 1. After the mixing is completed, the movement of materials is controlled by airflow to avoid the materials sticking to the wall, and all or almost all of the materials are discharged from the discharge port 14. For another example, the airflow channel of the blowing device can be set along the inner wall surface of the barrel 1, so as to achieve the purpose of blowing the materials on the inner wall surface to avoid material accumulation.

[0065] In specific applications, the first scraper 42 can be elastically connected to the first support rod 41 through an elastic structure. Similarly, the second scraper 44 can be elastically connected to the second support rod 43 through an elastic structure. This allows the first scraper structure 421 and the second scraper structure 441 to elastically abut the inner wall surface of the barrel 1. This ensures reliable cleaning while also preventing damage to components and extending the service life of the mixing device 10. Similarly, the outer spiral ribbon 32 can also be elastically connected to the first mixing support rod 31 through an elastic structure, thereby ensuring the mixing effect and extending the service life of the mixing device 10.

[0066] In specific applications, the first support rod 41 can be slidably connected to the rotating shaft 2 through a sliding structure. Similarly, the second support rod 43 can be slidably connected to the rotating shaft 2 through a sliding structure. When in use, the first scraper 42 and the second scraper 44 can be controlled to slide horizontally along the rotating shaft 2, thereby ensuring that the entire inner wall of the barrel 1 is scraped.

[0067] In a specific application, the inner wall surface of the barrel 1 may be provided with an anti-sticking structure to prevent the material from sticking to the wall. Specifically, the anti-sticking structure may include an anti-static structure provided on the inner wall surface of the barrel 1, and / or the anti-sticking structure may include a polishing layer provided on the inner wall surface of the barrel 1.

[0068] When in use, the material can be first poured into the barrel 1 through the feed port 13; then the feed port 13 is closed; the rotating shaft 2 is driven to rotate along its own axial direction; when the rotating shaft 2 rotates, the first scraper 42 provided on the rotating shaft 2 also rotates, so that the first scraper structure 421 can scrape the inner wall surface of the barrel 1, thereby effectively avoiding material agglomeration; before, after or at the same time, the mixing unit 3 also rotates with the rotation of the rotating shaft 2, thereby driving the material to move, so that the material can be mixed evenly, and the material can be sent to the discharge port 14 on the lower surface of the barrel 1; open the discharge port 14 to realize discharge.

[0069] It is understood that in the prior art, the scraper of the mixing device 10 is mostly a straight, integral plate (i.e., a continuous, non-curved scraper). This configuration results in a large force-bearing area for the scraper, heavy loads, and easy deformation. Non-metallic scrapers are also more susceptible to wear, and the scraped material tends to remain in the barrel 1 after being scraped, making it difficult to discharge properly. The scraper members (collectively, the first scraper member 42 and the second scraper member 44) of the present invention perform contact scraping and cleaning of the inner wall of the barrel 1. The cleaned material can then be discharged through the discharge port 14, effectively preventing material accumulation. Moreover, the scraper is replaced by the traditional straight plate integral type to the arc-shaped fault type, and is installed at an angle of 30 to 60 degrees with the horizontal direction of the mixing device 10, and the first scraper 42 and the second scraper 44 can be provided with a second feeding structure, so that the feeding direction of the scraper is consistent with the direction of the outer spiral belt 32. In this way, not only the installation position and accuracy are easier to control, the force area is greatly reduced, and the service life of the scraper is longer, but also the material cleaned from the inner wall of the barrel 1 will be transported to the discharge port 14 by the scraper in sections, so that the cleaning is very clean and there is no accumulation of material. In addition, the cross-section of the mixing barrel 11 in the utility model is set to a circle, so that the wall cleaning rate of the inner wall of the barrel 1 is increased from the original 50% to 95% or more, which can effectively solve the problem of material agglomeration in the barrel 1 and effectively eliminate the problem of unqualified mixing quality caused by material agglomeration in the traditional barrel 1.

[0070] The present invention provides a mixing device. The mixing device 10 includes a barrel 1 and a rotating shaft 2 disposed transversely within the barrel 1. The rotating shaft 2 is provided with a mixing unit 3 and a scraping unit 4. The scraping unit 4 includes a first support rod 41 and a first scraping member 42. One end of the first support rod 41 is connected to the rotating shaft 2 and is disposed radially along the rotating shaft 2. The other end of the first support rod 41 is connected to the first scraping member 42. The first scraping member 42 has a first scraping surface facing the inner wall of the barrel 1. The first scraping surface is provided with a first scraping structure 421. The first scraping structure 421 is configured to abut the inner wall of the barrel 1. When the rotating shaft 2 rotates, the first scraper 42 provided on the rotating shaft 2 also rotates, so that the first scraper structure 421 can scrape the inner wall surface of the barrel 1, thereby effectively avoiding material agglomeration, and further effectively avoiding problems such as unqualified mixing, deformation of the spiral ribbon and the rotating shaft 2, and wastewater treatment caused by material agglomeration; and, the first scraper surface is provided with a first load-reducing structure 422, and there is a gap between the first load-reducing structure 422 and the inner wall surface of the barrel 1, so that when the rotating shaft 2 rotates, the first scraper 42 does not abut the inner wall surface of the barrel 1 as a whole, thereby reducing the load of the first scraper 42 and avoiding deformation of the first scraper 42 on the basis of ensuring the cleaning effect.

[0071] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mixing device, characterized in that: It includes a barrel and a rotating shaft horizontally arranged in the barrel, a mixing unit and a scraping unit are provided on the rotating shaft, and the scraping unit includes a first support rod and a first scraping member, one end of the first support rod is connected to the rotating shaft, and the first support rod is arranged along the radial direction of the rotating shaft, the other end of the first support rod is connected to the first scraping member, the first scraping member has a first scraping surface facing the inner wall surface of the barrel, the first scraping surface is provided with a first scraping structure and a first load-reducing structure, the first scraping structure is used to abut against the inner wall surface of the barrel, and there is a gap between the first load-reducing structure and the inner wall surface of the barrel.

2. The mixing equipment according to claim 1, characterized in that The first scraping surface is in an arc shape.

3. The mixing equipment according to claim 1, characterized in that The material barrel comprises a mixing barrel portion, which is cylindrical and arranged transversely, and the rotating shaft is arranged transversely on the central axis of the mixing barrel portion.

4. The mixing device according to claim 1, characterized in that The scraper unit includes a second support rod and a second scraper member, one end of the second support rod is connected to the rotating shaft, the second support rod is arranged along the radial direction of the rotating shaft, the second support rod is arranged at an angle to the first support rod, the other end of the second support rod is connected to the second scraper member, the second scraper member has a second scraping surface, the second scraping surface faces the inner wall surface of the barrel and is in the shape of an arc surface, the second scraper surface is provided with a second scraping structure and a second load-reducing structure, the second scraper structure is used to abut the inner wall surface of the barrel, and there is a gap between the second load-reducing structure and the inner wall surface of the barrel.

5. The mixing device according to claim 4, characterized in that The first scraper is arranged at an angle to the central axis of the barrel, and forms an angle α; the second scraper is arranged at an angle to the central axis of the barrel, and forms an angle β.

6. The mixing device according to claim 4, characterized in that The inner wall of the barrel has a left wall surface and a right wall surface relative to each other, the rotating shaft has a left end close to the left wall surface and a right end close to the right wall surface, the first support rod is arranged close to the left end and / or the right end, the first scraper is arranged facing the inner wall of the barrel, and the first scraper is provided with an abutment structure on the side close to the left wall surface and / or the right wall surface, and the abutment structure is used to abut against the left wall surface and / or the right wall surface.

7. The mixing device according to claim 6, characterized in that The two first support rods are respectively arranged near the left end and the right end of the rotating shaft, and the two first support rods are arranged in parallel or at 180°. A plurality of second support rods and second scraping members are evenly distributed between the two first support rods, and each second support rod is arranged at an angle to the first support rod.

8. The mixing device according to any one of claims 4 to 7, characterized in that The first scraper structure is provided in the middle of the first scraper surface, and the first load-reducing structure is provided at both ends of the first scraper surface. Along the direction from the first scraper structure to the first load-reducing structure, the gap between the first load-reducing structure and the inner wall of the barrel gradually increases; the second scraper structure is provided in the middle of the second scraper surface, and the second load-reducing structure is provided at both ends of the second scraper surface. Along the direction from the second scraper structure to the second load-reducing structure, the gap between the second load-reducing structure and the inner wall of the barrel gradually increases.

9. The mixing device according to any one of claims 4 to 7, characterized in that The first scraper member includes a first reinforcing plate, a second reinforcing plate and a first wear-resistant plate, one end of the first reinforcing plate and the second reinforcing plate clamps one end of the first wear-resistant plate, and the first reinforcing plate, the second reinforcing plate and the first wear-resistant plate are connected by a first fastener; the second scraper member includes a third reinforcing plate, a fourth reinforcing plate and the second wear-resistant plate, one end of the third reinforcing plate and the fourth reinforcing plate clamps one end of the second wear-resistant plate, and the third reinforcing plate, the fourth reinforcing plate and the second wear-resistant plate are connected by a second fastener.

10. The mixing device according to any one of claims 1 to 7, characterized in that The inner wall of the barrel has a left wall surface and a right wall surface relative to each other, the rotating shaft has a left end close to the left wall surface and a right end close to the right wall surface, the scraper unit includes a third support rod and a third scraper member, one end of the third support rod is connected to the left end and / or right end of the rotating shaft, the third support rod is arranged along the radial direction of the rotating shaft, the third scraper member is arranged on the surface of the third support rod close to the left end and / or right end, and the third scraper member is arranged along the direction from one end of the third support rod to the other end, for scraping the left wall surface and / or right wall surface of the barrel.

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