Feeding device for high shear mixer

Abstract

The utility model relates to a feeding device for a high-shear mixer, and belongs to the technical field of material shearing and mixing equipment. The feeding device comprises a hopper used for feeding, a rotating shaft is arranged in the hopper in the vertical direction, a screw strip is arranged on the periphery of the rotating shaft in a surrounding mode, the screw strip rotates along with rotation of the rotating shaft, and the rotating trend of the screw strip faces downwards; a discharge port of the funnel is connected with a clamping type pipe, and a discharge port of the clamping type pipe is communicated with a rotor high-speed mixing cavity of the high-shear mixer; and a cleaning unit is assembled at the bottom of the rotating shaft, rotates along with the rotation of the rotating shaft, and is positioned at the inverted horn mouth at the bottom of the clamping pipe. The feeding device can assist in feeding, and solves the problems of feeding blockage and too slow blanking of the high-shear mixer.

Description

Technical Field

[0001] The utility model relates to the technical field of shearing and mixing material equipment, in particular to a feeding device for a high shear mixer. Background Art

[0002] High-shear mixers, essential equipment in the modern chemical, food, pharmaceutical, and cosmetics industries, are highly sought after for their efficient shearing and homogenization capabilities. These devices are known by various names, including emulsifying pumps and mixing, dispersing, and dispersion pumps. Their core function lies in achieving efficient mixing and micronization of materials through a precisely designed mechanical structure.

[0003] Specifically, the working principle of a high-shear mixer is based on the tiny gap formed between a high-speed rotating rotor and a stationary stator. As the rotor spins at extremely high speeds, it drives the materials into a complex flow field within the mixing chamber. This process creates a significant velocity gradient from the rotor surface to the stator surface due to the extremely small space and high speed. The powerful shear force generated by this velocity gradient effectively breaks down material agglomerates, promoting the formation of fine particles and achieving uniform mixing.

[0004] In the market, high-shear mixers are mainly divided into two types: horizontal and vertical, each with its own application advantages. Among them, the vertical model, with its compact structural design, allows the powder feeding pipeline to be directly connected to the inside of the mixing chamber, and utilizes the negative pressure effect generated by the high-speed rotation of the rotor and the weight of the powder to achieve efficient feeding. Although this design improves feeding efficiency, when dealing with certain powders that are easy to agglomerate or have high viscosity, it may still face the problem of slow material discharge caused by insufficient suction. In comparison, although the horizontal model is slightly inferior in suction, it is more suitable for production scenarios with limited space layout or requiring feeding at a specific angle.

[0005] The root cause of slow feeding and powder blockage, common problems in practical applications, often lies in the mismatch between the powder's physical properties and the equipment design. For example, certain powders are highly hygroscopic and easily react with solvents during mixing, leading to the formation of a wet layer near the solid-liquid interface. This layer then adheres to the tube wall, causing blockage. Traditional approaches to alleviate this problem include extending the powder feeding time to reduce instantaneous feed pressure and regularly shutting down the machine for cleaning. However, these methods are not only inefficient but can also increase safety risks due to frequent operation, impacting production continuity and product quality stability.

[0006] Based on the above problems, it is socially necessary to develop a feeding device for a high shear mixer. Utility Model Content

[0007] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a feeding device for a high shear mixer, thereby solving the problems of feed blockage and slow material discharge in the high shear mixer.

[0008] The technical solution adopted by the present invention is as follows: a feeding device for a high-shear mixer, comprising a feeding funnel, a rotating shaft is arranged in a vertical direction inside the funnel, and spiral strips are arranged around the periphery of the rotating shaft, the spiral strips rotate as the rotating shaft rotates and the rotation trend of the spiral strips is downward; the discharge port of the funnel is connected to a cassette tube, and the discharge port of the cassette tube is communicated with the high-speed mixing chamber of the rotor of the high-shear mixer; a cleaning unit is assembled at the bottom of the rotating shaft, the cleaning unit rotates as the rotating shaft rotates, and the cleaning unit is located at the inverted trumpet mouth at the bottom of the cassette tube.

[0009] As a further improvement of the above technical solution:

[0010] Preferably, the funnel is provided with a mounting plate mounted on the top of the funnel; a bearing is assembled in the middle of the mounting plate, the rotating shaft passes through the bearing, the mounting plate cooperates with the outer ring of the bearing, and the rotating shaft cooperates with the inner ring of the bearing.

[0011] Preferably, a rotating handle is connected and fixed to the top of the rotating shaft.

[0012] Preferably, the bottom of the funnel and the card tube are fixedly assembled by a clamp.

[0013] Preferably, a card-type sealing ring is provided on the inner side surface of the clamp.

[0014] Preferably, a mounting frame is fixed to the periphery of the rotating shaft, and a screw strip is fixed on the mounting frame; when the rotating shaft rotates, the mounting frame is driven, and when the mounting frame rotates, the screw strip rotates synchronously.

[0015] Preferably, the structure of the cleaning unit is as follows: it includes a cleaning follower shaft connected to the bottom of the rotating shaft, and a cleaning head is arranged on the outer side wall of the cleaning follower shaft.

[0016] Preferably, the cleaning head is a plate structure arranged obliquely, and the cleaning head cleans the tube wall of the cassette tube when the cleaning follower shaft rotates.

[0017] The beneficial effects of the utility model are as follows:

[0018] The utility model has a compact structure and stable feeding. A mounting plate is provided on the top of the funnel, and the rotating shaft is located on the axis of the funnel by using the mounting plate. A fixed screw strip is added to the rotating shaft through a mounting frame. During the feeding process, the screw strip can stir the material to prevent bridging and provide a certain downward pressure to help powder fall, thereby solving the problems of feed blockage and slow material falling in the high shear mixer.

[0019] The utility model also has the following advantages:

[0020] (1) The present invention also adds a cleaning unit at the bottom of the rotating shaft. The cleaning head of the cleaning unit rotates along with the rotating shaft to clean the wall of the cassette tube;

[0021] (2) The utility model takes into account both safety and operability. Operators can directly discharge materials through the funnel without coming into contact with high-speed rotating parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 for Figure 1 Schematic diagram of the internal structure of the (funnel and cassette tube are omitted)

[0024] Figure 3 This is a schematic structural diagram of the cleaning head of the present invention.

[0025] Wherein: 1. Funnel; 2. Mounting plate; 3. Rotating shaft; 4. Rotating handle; 5. Bearing; 6. Screw; 7. Clamp; 8. Cassette tube; 9. Mounting bracket; 10. Cleaning unit;

[0026] 1001. Clean the follower shaft; 1002. Clean the head. DETAILED DESCRIPTION

[0027] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0028] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the case of using “including,” “having,” and “comprising” described herein, another component may be added unless a clear limiting term such as “only,” “consisting of,” etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as having one number.

[0031] It should be understood that although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the present invention.

[0032] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0033] like Figures 1 to 3 , shows a schematic diagram of the structural state of a feeding device for a high shear mixer in one embodiment of the present invention; for ease of description, the accompanying drawings only show structures related to the embodiment of the present invention.

[0034] The feeding device for a high shear mixer of this embodiment includes a hopper 1 for feeding, a rotating shaft 3 is vertically arranged inside the hopper 1, and spiral strips 6 are arranged around the periphery of the rotating shaft 3. The spiral strips 6 rotate with the rotation of the rotating shaft 3 and the rotation trend of the spiral strips 6 is downward; the discharge port of the funnel 1 is connected to the cassette tube 8, and the discharge port of the cassette tube 8 is connected to the high-speed mixing chamber of the rotor of the high shear mixer; a cleaning unit 10 is assembled at the bottom of the rotating shaft 3, and the cleaning unit 10 rotates with the rotation of the rotating shaft 3. The cleaning unit 10 is located at the inverted bell mouth at the bottom of the cassette tube 8.

[0035] In this embodiment, the funnel 1 is provided with a mounting plate 2 mounted on the top of the funnel 1; a bearing 5 is assembled in the middle of the mounting plate 2, and the rotating shaft 3 is arranged through the bearing 5, the mounting plate 2 cooperates with the outer ring of the bearing 5, and the rotating shaft 3 cooperates with the inner ring of the bearing 5; specifically, the funnel 1 provides a positioning function of the mounting plate 2. Exemplarily, the connection method between the funnel 1 and the mounting plate 2 includes but is not limited to welding, bolt connection, snap connection and quick clamp connection. The inclination angle of the funnel 1 is preferably smaller than the repose angle of the powder material to avoid powder bridging and accumulation on the slope.

[0036] In this embodiment, a rotating handle 4 is fixedly connected to the top of the rotating shaft 3, and the rotating handle 4 is used to drive the rotating shaft 3 to rotate; for example, the rotating handle 4 can be rotated manually by an operator, or a motor can be installed above the axis of the rotating handle 4.

[0037] In this embodiment, the bottom of the funnel 1 and the clamp tube 8 are fixedly assembled by a clamp 7;

[0038] Furthermore, a card-type sealing ring is provided on the inner side surface of the clamp 7 to ensure sealing.

[0039] In this embodiment, a mounting frame 9 is fixed to the periphery of the rotating shaft 3 , and a screw thread 6 is fixed on the mounting frame 9 ; when the rotating shaft 3 rotates, the mounting frame 9 is driven, and when the mounting frame 9 rotates, the screw thread 6 rotates synchronously.

[0040] In this embodiment, the structure of the cleaning unit 10 is as follows: it includes a cleaning follower shaft 1001 connected to the bottom of the rotating shaft 3, and a cleaning head 1002 is provided on the outer side wall of the cleaning follower shaft 1001;

[0041] Furthermore, the cleaning head 1002 is a plate structure that is tilted, and when the cleaning follower shaft 1001 rotates, the cleaning head 1002 cleans the wall of the cassette tube 8;

[0042] Exemplarily, the connection between the cleaning unit 10 and the rotating shaft 3 includes, but is not limited to, welding, hexagon socket set screw installation, and pin connection;

[0043] Furthermore, the cleaning head 1002 is detachable, and cleaning heads 1002 of different sizes can be used according to the material properties; for example, the cleaning head 1002 scrapes the wall when the wet powder material is discharged; and when the material does not stick to the wall of the cassette tube 8, the wall does not need to be scraped.

[0044] In this embodiment, specifically, the rotating shaft 3 rotates counterclockwise in the top view of the device, so that the screw 6 rotates to provide downward pressure on the material.

[0045] In this embodiment, specifically, the cassette tube 8 is directly connected to the rotor high-speed mixing chamber of the high-shear mixer, and the end of the cassette tube 8 connected to the mixing chamber is an inverted bell mouth, which can concentrate the internal negative pressure of the mixing chamber, slightly increase the suction force, prevent liquid splashing, reduce the amount of wetted powder blockage, and facilitate the cleaning head 1002 to clean the tube wall.

[0046] The structure of the utility model is reasonable. The design of the screw strip 6 provides downward pressure, which can assist transportation and solve the problem of powder absorption difficulty without affecting the internal working performance of the high shear mixer itself and without destroying the flow field. At the same time, the addition of the cleaning unit 10 solves the problem of material blockage that may occur at the discharge port during the feeding process.

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-described embodiments merely represent implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A feeding device for a high shear mixer, characterized in that, include: A funnel (1) for feeding materials, wherein a rotating shaft (3) is arranged vertically in the funnel (1), and screw strips (6) are arranged around the outer periphery of the rotating shaft (3), wherein the screw strips (6) rotate with the rotation of the rotating shaft (3), and the rotating tendency of the screw strips (6) is downward and provides downward pressure; The discharge port of the funnel (1) is connected to the cassette tube (8), and the discharge port of the cassette tube (8) is communicated with the high-speed mixing chamber of the rotor of the high-shear mixer; A cleaning unit (10) is assembled at the bottom of the rotating shaft (3), and the cleaning unit (10) rotates with the rotation of the rotating shaft (3). The cleaning unit (10) is located at the inverted bell mouth at the bottom of the card tube (8).

2. The feeding device for a high shear mixer according to claim 1, characterized in that: The funnel (1) is provided with a mounting plate (2) mounted on the top of the funnel (1); A bearing (5) is mounted in the middle of the mounting plate (2), the rotating shaft (3) passes through the bearing (5), the mounting plate (2) cooperates with the outer ring of the bearing (5), and the rotating shaft (3) cooperates with the inner ring of the bearing (5).

3. The feeding device for a high shear mixer according to claim 2, wherein: A rotating handle (4) is connected and fixed to the top of the rotating shaft (3).

4. The feeding device for a high shear mixer according to claim 1, wherein: The bottom of the funnel (1) and the clamping tube (8) are fixedly assembled via a clamp (7).

5. The feeding device for a high shear mixer according to claim 4, characterized in that: A clamping seal ring is provided on the inner side surface of the clamp (7).

6. The feeding device for a high shear mixer according to claim 1, wherein: A mounting frame (9) is fixed on the periphery of the rotating shaft (3), and a screw thread (6) is fixed on the mounting frame (9); When the rotating shaft (3) rotates, the mounting frame (9) is driven, and when the mounting frame (9) rotates, the screw strip (6) rotates synchronously.

7. The feeding device for a high shear mixer according to claim 1, wherein: The structure of the cleaning unit (10) is as follows: it comprises a cleaning follower shaft (1001) connected to the bottom of the rotating shaft (3), and a cleaning head (1002) is arranged on the outer side wall of the cleaning follower shaft (1001).

8. The feeding device for a high shear mixer according to claim 7, wherein: The cleaning head (1002) is a plate structure arranged obliquely, and when the cleaning follower shaft (1001) rotates, the cleaning head (1002) cleans the tube wall of the cassette tube (8).

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