Novel high-efficiency roller double-helical-ribbon mixer

Abstract

The utility model provides a novel high-efficiency roller double-helical-ribbon mixer which comprises a barrel body, and a stirring cavity is formed in the barrel body; four carrier roller mechanisms are symmetrically mounted on the base in pairs; the cylinder body is mounted on the four carrier roller mechanisms; the outer helical ribbons spirally extend along the inner wall of the barrel, the outer helical ribbons are connected with the inner wall of the barrel in an attached mode, the number of the outer helical ribbons is multiple, and the multiple outer helical ribbons are spaced in the circumferential direction; the inner helical ribbon and the at least one outer helical ribbon are arranged at intervals through the supporting handle, and the helical direction of the inner helical ribbon is opposite to that of the outer helical ribbon; the driving motor is installed on the base and used for providing power for driving the barrel to rotate on the carrier rollers, and the transmission mechanism is arranged between the driving motor and the barrel and used for transmitting the power of the driving motor to the barrel. The problems that in the stirring process of existing mixing equipment, stirring dead angles are likely to be generated, the mixing efficiency is low, and the stirring effect is not uniform are solved.

Description

Technical Field

[0001] This application belongs to the technical field of powder mixing equipment, and more specifically, relates to a novel high-efficiency drum double-ribbon mixer. Background Technology

[0002] Powder mixing refers to the process of mixing particles with different physical and chemical properties in a dry state or in the presence of a small amount of liquid using mechanical force to achieve a uniform spatial distribution. Existing mixing equipment is prone to creating dead zones during the mixing process, resulting in uneven mixing, low mixing efficiency, and poor powder uniformity after discharge. Current technologies attempt to improve this by connecting mixing devices in series, but this significantly increases the equipment footprint and investment, hindering large-scale application by enterprises. Summary of the Invention

[0003] The purpose of this application is to provide a novel high-efficiency drum double ribbon mixer to solve the problems of existing mixing equipment that easily generate dead zones, have low mixing efficiency, and have uneven mixing effect during the mixing process.

[0004] To achieve the above objectives, the technical solution adopted in this application is: a novel high-efficiency drum double-ribbon mixer, comprising:

[0005] The cylindrical body has an internal stirring chamber.

[0006] A base on which four roller mechanisms are symmetrically mounted in pairs; the cylinder is mounted on the four roller mechanisms.

[0007] The outer spiral ribbon extends spirally along the inner wall of the cylinder and is in close contact with the inner wall of the cylinder. There are multiple outer spiral ribbons, which are spaced apart circumferentially.

[0008] An internal helical ribbon, wherein the internal helical ribbon is spaced apart from at least one of the external helical ribbons by means of a support shank, and the helical directions of the internal helical ribbon and the external helical ribbon are opposite;

[0009] A drive motor, mounted on the base, is used to provide power for driving the cylinder to rotate on the idler roller;

[0010] A transmission mechanism is provided between the drive motor and the cylinder, and is used to transmit the power of the drive motor to the cylinder.

[0011] Preferably, there are multiple internal spiral bands, and the multiple internal spiral bands are circumferentially spaced.

[0012] Preferably, a feeding device and a discharging device are rotatably connected to both ends of the cylinder, and both the feeding device and the discharging device are fixedly connected to the base by mounting brackets.

[0013] Preferably, the discharge device includes:

[0014] The feeding box is fixedly connected to the base by a mounting bracket, and the feeding port of the feeding box is rotatably connected to the cylinder.

[0015] A feeding mechanism, installed on the feeding box, is used to open or close the cylinder outlet.

[0016] The feed pipe is connected to the discharge port of the discharge box.

[0017] Preferably, the discharge box is provided with an exhaust port, which is used to balance the pressure difference of the discharge box during the discharge process.

[0018] Preferably, the feeding mechanism includes:

[0019] A cylinder is connected to the discharge box, and the piston rod of the cylinder passes through the discharge box; and the piston rod is slidably connected to the discharge box.

[0020] The cover is fixedly connected to the piston rod.

[0021] Preferably, the cylinder is provided with a first rolling ring and a second rolling ring, and a passive sprocket is fixedly connected to the first rolling ring.

[0022] Preferably, the transmission mechanism includes: a drive sprocket connected to the drive motor;

[0023] The first bridge sprocket is rotatably connected to the base, and the first bridge sprocket is connected to the drive sprocket via a first chain;

[0024] The second bridge sprocket is rotatably connected to the base, and the second bridge sprocket is coaxially arranged with the first bridge sprocket.

[0025] The third sprocket is rotatably connected to the base, and the third sprocket and the second sprocket are symmetrically arranged about the passive sprocket.

[0026] The second chain is connected to the second bridge sprocket, the passive sprocket, and the third bridge sprocket.

[0027] Preferably, a first rolling ring cover and a second rolling ring cover are fixedly connected to the base. The first rolling ring cover is used to prevent foreign objects from falling into the passive sprocket and the first rolling ring, and the second rolling ring cover is used to prevent foreign objects from falling into the second rolling ring.

[0028] Preferably, a cleaning door is installed on the cylinder.

[0029] The advantages of the novel high-efficiency drum double ribbon mixer provided in this application are as follows:

[0030] 1. This utility model utilizes an outer spiral ribbon extending spirally along the inner wall of the cylinder, which is closely connected to the inner wall of the cylinder. Multiple outer spiral ribbons are circumferentially spaced. An inner spiral ribbon is spaced apart from at least one outer spiral ribbon via a support handle, and the spiral direction of the inner spiral ribbon is opposite to that of the outer spiral ribbon. Multiple inner spiral ribbons are also circumferentially spaced. Specifically, when the cylinder rotates, the outer and inner spiral ribbons simultaneously agitate the material, causing the material to tumble upwards and downwards. Because the outer edges of the outer and inner spiral ribbons have different radii of rotation, the agitation speeds of the material are different, which is obviously beneficial for radial mixing. At the same time, the outer spiral ribbon pushes the material from one end to the other, while the inner spiral ribbon (the spiral ribbon with a small outer radius of rotation) pushes the material from the other end to this end, causing the material to reciprocate axially in the mixing chamber, resulting in axial distribution mixing. Due to the opposite rotation and shearing action of the inner and outer spiral ribbons, the material is mixed more evenly and efficiently in the mixing chamber.

[0031] 2. This application adopts a shaftless design. The shaftless inner and outer double-ribbed mixing drum avoids the problem of material sticking to the shaft, which helps to reduce resistance during the mixing process, improve mixing efficiency, and reduce energy consumption. At the same time, the shaftless design also simplifies the structure of the equipment, making cleaning and maintenance more convenient. The shaftless design reduces the safety hazards caused by material sticking to the shaft, and the equipment has good sealing performance, reducing dust and noise pollution, meeting the safety and environmental protection requirements of modern industrial production. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A three-dimensional structural diagram of the novel high-efficiency drum double-ribbon mixer provided in the embodiments of this application. Figure 1 ;

[0034] Figure 2 A three-dimensional structural diagram of the novel high-efficiency drum double-ribbon mixer provided in the embodiments of this application. Figure 2 ;

[0035] Figure 3 A top view of the novel high-efficiency drum double ribbon mixer provided in the embodiments of this application;

[0036] Figure 4A three-dimensional structural diagram of the outer and inner spiral ribbons of the novel high-efficiency drum double-ribbon mixer provided in the embodiments of this application;

[0037] Figure 5 This is a cross-sectional structural schematic diagram of the discharge device of the novel high-efficiency drum double ribbon mixer provided in the embodiments of this application.

[0038] The following are the labeling elements in the figure:

[0039] 1. Base; 2. Idler roller; 3. Idler roller seat; 4. Cylinder; 5. Cleaning door; 6. First rolling ring; 7. Second rolling ring; 8. Driven sprocket; 9. Discharge device; 901. Discharge box; 902. Exhaust port; 903. Cylinder; 904. Cover; 905. Guide pipe; 10. Mounting bracket; 11. Feeding device; 12. Servo motor; 13. Reducer; 14. Drive sprocket; 15. First bridge sprocket; 16. Second bridge sprocket; 17. Third bridge sprocket; 18. Outer threaded ribbon; 19. Inner threaded ribbon; 20. Support handle; 21. First rolling ring cover; 22. Second rolling ring cover. Detailed Implementation

[0040] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0041] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0042] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0044] Please refer to the following: Figures 1 to 5 The present application will now describe the novel high-efficiency drum double-ribbon mixer provided in the embodiments of this application.

[0045] The novel high-efficiency drum double-ribbon mixer includes a drum body 4, a base 1, an outer helical ribbon 18, an inner helical ribbon 19, a drive motor, and a transmission mechanism.

[0046] The cylinder 4 has an internal stirring chamber, and a cleaning door 5 is installed on its side wall. The cylinder 4 can be made of carbon steel, manganese steel, 304 stainless steel, 316L stainless steel, or other materials, and different materials can be combined. The interior of the cylinder 4 can also be fitted with coatings or protective layers with specific functions such as corrosion resistance, anti-adhesion, isolation, and wear resistance, depending on the materials being stirred. A first rolling ring 6 and a second rolling ring 7 are provided on the outer side of the cylinder 4, and a driven sprocket 8 is fixedly connected to the first rolling ring 6.

[0047] Four roller 2 mechanisms are symmetrically installed in pairs on the base 1. The cylinder 4 is rotatably connected to the roller 2 mechanism via the first roller ring 6 and the second roller ring 7. The roller 2 mechanism includes roller 2 and roller seat 3. The roller 2 is rotatably connected to the roller seat 3, and the roller seat 3 is fixedly connected to the base 1. A first roller ring cover 21 and a second roller ring cover 22 are fixedly connected to the base 1. Both the first roller ring cover 21 and the second roller ring cover 22 are rotatably connected to the cylinder 4. The first roller ring cover 21 is used to prevent foreign objects from falling into the passive sprocket 8 and to prevent foreign objects from falling between the first roller ring 6 and the roller 2 to affect the rotation of the cylinder 4. The second roller ring cover 22 is used to prevent foreign objects from falling between the second roller ring 7 and the roller 2 to affect the rotation of the cylinder 4 on the roller.

[0048] The outer spiral ribbon 18 extends spirally along the inner wall of the cylinder 4 and is closely connected to the inner wall of the cylinder 4. Specifically, the outer spiral ribbon 18 can be fixed to the inner wall of the cylinder 4 by welding. There are multiple outer spiral ribbons 18, which are spaced apart circumferentially. The inner spiral ribbon 19 is spaced apart from at least one outer spiral ribbon 18 by a support shank 20. The support shank 20 is welded to the inner wall of the cylinder and connected to the outer spiral ribbon 18 and the inner spiral ribbon 19. The spiral direction of the inner spiral ribbon 19 is opposite to that of the outer spiral ribbon 18. There are multiple inner spiral ribbons 19, which are spaced apart circumferentially.

[0049] The drive motor is mounted on the base 1. It should be noted that the drive motor in this application includes a servo motor 12 and a reducer 13. The drive motor is used to provide power for driving the cylinder 4 to rotate on the idler roller 2.

[0050] A transmission mechanism is provided between the drive motor and the cylinder 4, for transmitting the power of the drive motor to the cylinder 4 so that the cylinder 4 rotates on the idler roller. In one embodiment of this application, the transmission mechanism includes: a drive sprocket 14, which is fixedly connected to the output shaft of the reducer 13; a first sprocket 15, which is rotatably connected to the base 1 via a shaft and connected to the drive sprocket 14 via a first chain; a second sprocket 16, which is rotatably connected to the base 1 via a shaft and coaxially arranged with the first sprocket 15; a third sprocket 17, which is rotatably connected to the base 1 and symmetrically arranged with respect to the driven sprocket 8 with respect to the second sprocket 16; and a second chain, which is connected to the second sprocket 16, the driven sprocket 8, and the third sprocket 17.

[0051] The difference between this application and the prior art lies in the following: the outer spiral ribbon 18 extends spirally along the inner wall of the cylinder 4, and the outer spiral ribbon 18 is closely connected to the inner wall of the cylinder 4; there are multiple outer spiral ribbons 18, which are spaced apart circumferentially. The inner spiral ribbon 19 is spaced apart from at least one outer spiral ribbon 18 by a support shank 20, and the spiral direction of the inner spiral ribbon 19 is opposite to that of the outer spiral ribbon 18; there are multiple inner spiral ribbons 19, which are spaced apart circumferentially. Specifically, when the cylinder 4 rotates, the outer spiral ribbons 18 and the inner spiral ribbons 19 simultaneously agitate the material, causing the material to tumble up and down. Since the outer edges of the outer spiral ribbons 18 and the inner spiral ribbons 19 have different radii of rotation, the agitation speed of the material is different, which is obviously beneficial for radial distribution mixing. Meanwhile, the outer spiral ribbon 18 pushes the material from one end to the other, while the inner spiral ribbon 19 (a spiral ribbon with a small outer radius of rotation) pushes the material from the other end to this end, causing the material to reciprocate axially within the mixing chamber, resulting in axially distributed mixing. Due to the opposing rotation and shearing action of the inner and outer spiral ribbons 18, the mixing of the material within the mixing chamber is more uniform and efficient, which is particularly important for materials requiring high-precision mixing. This application adopts a shaftless design. The shaftless double spiral ribbon mixing drum avoids the problem of material sticking to the shaft, which helps reduce resistance during the mixing process, improves mixing efficiency, and reduces energy consumption. At the same time, the shaftless design also simplifies the structure of the equipment, making cleaning and maintenance more convenient.

[0052] In a preferred embodiment, a feeding device 11 and a discharging device 9 are rotatably connected to both ends of the cylinder 4. The feeding device 11 and the discharging device 9 are both fixedly connected to the base 1 by mounting brackets 10. It should be noted that the external thread 18 near the end of the discharging device 9 extends to the discharge port of the cylinder 4, and the external thread 18 near the end of the feeding device 11 extends to the feed port of the cylinder 4. The feeding device 11 is rotatably connected to the cylinder 4 by a flange and bearings. Specifically, the discharge device 9 includes: a discharge box 901, which is fixedly connected to the base 1 via a mounting bracket 10, and the inlet of the discharge box 901 is rotatably connected to the cylinder 4 via a mounting flange and a bearing; a discharge mechanism, which is installed on the discharge box 901 and is used to open or close the discharge port of the cylinder 4, specifically the discharge mechanism includes: a cylinder 903, which is connected to the discharge box 901, and the piston rod of the cylinder 903 passes through the discharge box 901; and the piston rod is slidably connected to the discharge box 901; a cover 904, which is fixedly connected to the piston rod, and the cover 904 is adapted to the discharge port of the cylinder 4, and a sealing ring is provided on the cover 904; and a guide pipe 905, which is connected to the discharge port of the discharge box.

[0053] In a preferred embodiment, the discharge box 901 is provided with an exhaust port 902, which is used for dust removal and to balance the pressure difference of the discharge box 901 during the discharge process.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A new high efficiency drum double ribbon mixer characterized in that, The utility model relates to a kind of agitator, including: Cylinder, inside forming has stirring cavity; Base, four supporting roller mechanisms are symmetrically installed on the base two by two;The cylinder is installed on four supporting roller mechanisms; Outer screw belt, along the inner wall of the cylinder helically extends, and the outer screw belt is connected with the inner wall of the cylinder, and the number of outer screw belt is multiple, and multiple outer screw belt is spaced along the circumference; Inner screw belt, the inner screw belt is spaced apart from at least one outer screw belt by a support handle, and the helical direction of the inner screw belt and the outer screw belt is opposite; Driving motor, installed on the base, for driving the cylinder to rotate on the supporting roller to provide power; Transmission mechanism, between the driving motor and the cylinder, for transmitting the power of the driving motor to the cylinder.

2. The novel high efficiency tumbler double ribbon mixer as claimed in claim 1, wherein, The number of inner screw belt is multiple, and multiple inner screw belt is spaced along the circumference.

3. The novel high efficiency tumbler double ribbon mixer as claimed in claim 2, wherein, The two ends of the cylinder are rotatably connected with feeding device and discharging device respectively, and the feeding device and the discharging device are fixedly connected to the base by mounting bracket respectively.

4. The novel high efficiency tumbler double ribbon mixer as claimed in claim 3, wherein: The discharging device includes: Discharge tank, fixedly connected to the base by mounting bracket, and the feeding port of the discharge tank is rotatably connected with the cylinder; Discharge mechanism, installed on the discharge tank, for opening or closing cylinder discharge port; Material guide pipe, connected to discharge tank discharge port.

5. The novel high efficiency tumbler double-screw ribbon mixer as claimed in claim 4, characterized in that: An exhaust port is formed in the discharge tank, and the exhaust port is used to balance the pressure difference of the discharge tank during discharging.

6. The novel high efficiency tumbler double-screw ribbon mixer as claimed in claim 5, characterized in that, The discharge mechanism includes: Cylinder, connected to the discharge tank, the piston rod of the cylinder penetrates the discharge tank;And the piston rod and the discharge tank are slidingly connected; Cover, fixedly connected to the piston rod.

7. The novel high efficiency tumbler double-screw ribbon mixer as claimed in claim 1, characterized in that: The cylinder is provided with a first rolling ring and a second rolling ring, and the first rolling ring is fixedly connected with a driven sprocket.

8. The novel high efficiency tumbler double-screw ribbon mixer as claimed in claim 7, characterized in that: The transmission mechanism includes: driving sprocket, connected to the driving motor; First bridge sprocket, rotatably connected to the base, and the first bridge sprocket is connected with the driving sprocket by first chain; Second bridge sprocket, rotatably connected to the base, and the second bridge sprocket is coaxially arranged with the first bridge sprocket; Third bridge sprocket, rotatably connected to the base, and the third bridge sprocket is symmetrically arranged with the second bridge sprocket about the driven sprocket; Second chain, connected with the second bridge sprocket, the driven sprocket and the third bridge sprocket.

9. The novel high efficiency tumbler double-screw ribbon mixer as claimed in claim 8, characterized in that: The base is fixedly connected with a first rolling ring cover and a second rolling ring cover, the first rolling ring cover is used to prevent foreign matter from falling into the driven sprocket and the first rolling ring, and the second rolling ring cover is used to place foreign matter falling into the second rolling ring.

10. The novel high efficiency tumbler double-screw ribbon mixer as claimed in claim 9, characterized in that: The cylinder is provided with a cleaning door.

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