A feeding slot structure for a dry granulator and a dry granulator

Abstract

This utility model discloses a dry granulator and a feeding trough structure. The feeding trough structure includes a feeding trough body, a flow guiding device, an anti-clogging device, and a cleaning device. The feeding trough body has a funnel-shaped structure that is wider at the top and narrower at the bottom. The top of the feeding trough body is open, and the bottom of the feeding trough body is connected to the feed inlet of the dry granulator. The flow guiding device includes several flow guiding baffles, which are evenly distributed from top to bottom along the inner wall of the feeding trough body to guide the material flow. The anti-clogging device includes a vibrator installed on the outer wall of the feeding trough body to prevent material accumulation through vibration. The cleaning device includes several rotating brushes, the bristles of which contact the inner wall of the feeding trough body to clean residual material inside the feeding trough body. This utility model is simple to operate and convenient to use, effectively avoiding easy clogging of the feeding trough, improving material conveying efficiency, and thus improving the operating efficiency and granulation quality of the dry granulator.

Description

Technical Field

[0001] This utility model relates to the field of dry granulation machine technology, specifically to a feeding trough structure and a dry granulation machine. Background Technology

[0002] Dry granulation machines are essential equipment widely used in the pharmaceutical, food, and chemical industries to compress powdered materials into granules. In the dry granulation process, the feeding trough is a key component for material entry into the granulator. Traditional feeding trough structures have several problems, such as material accumulation and blockage, leading to uneven material supply and affecting granulation quality and efficiency. Furthermore, the feeding trough has low material conveying efficiency, easily causing material waste and equipment instability. Therefore, optimizing the feeding trough structure of dry granulation machines is of significant practical importance.

[0003] Patent document CN214526804U discloses a material feeding device for dry granulation of traditional Chinese medicine formula granules, which includes a production box and a material box. One side of the material box is fixedly connected to the lower part of one side of the production box. A feeding hopper is fixedly connected to the top of the production box via a bracket. The bottom end of the feeding hopper penetrates and extends into the interior of the production box. A power air pump is fixedly connected to the top of the material box. The output shaft of the power air pump is connected to a power air pipe, one end of which penetrates and extends into the interior of the feeding hopper. This technical solution uses mechanical power to improve the quality of dry granulation of drugs, but it does not solve the problem of feeding blockage, so improvement is necessary. Utility Model Content

[0004] In view of the above-mentioned defects of the prior art, the present invention provides a feeding trough structure and a dry granulator, which has a simple structure and is easy to use. It can avoid easy blockage of the feeding trough, improve material conveying efficiency, and thus improve the operating efficiency and granulation quality of the dry granulator.

[0005] To solve the above technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a feeding trough structure for a dry granulation machine, including a feeding trough body, a flow guiding device disposed on the inner wall of the feeding trough body, an anti-blocking device disposed on the outer wall of the feeding trough body, and a cleaning device disposed at the bottom of the feeding trough body.

[0007] The feeding trough body has a funnel-shaped structure that is wider at the top and narrower at the bottom. The top of the feeding trough body is open, and the bottom of the feeding trough body is connected to the feed inlet of the dry granulation machine.

[0008] The flow guiding device includes a plurality of flow guiding baffles, which are evenly distributed from top to bottom along the inner wall of the feeding trough body to guide the flow of materials.

[0009] The anti-clogging device includes a vibrator installed on the outer wall of the feeding tank body, which prevents material accumulation by vibration;

[0010] The cleaning device includes several rotating brushes, the bristles of which contact the inner wall of the feeding tank body to clean residual materials inside the feeding tank body.

[0011] Preferably, the baffle is arc-shaped or triangular, and its outer surface is smooth and flat.

[0012] Preferably, a plurality of the flow guide baffles are arranged at intervals in the vertical direction of the inner wall of the feeding tank body, with a spacing between 10cm and 20cm.

[0013] Preferably, the adjacent guide baffles are offset by 5cm to 10cm in the horizontal direction of the inner wall of the feeding tank body, so that the material continuously changes the flow direction during the flow process, forming a zigzag flow path.

[0014] Preferably, the length of the flow guide baffle is set to 1 / 4 to 1 / 3 of the inner diameter of the feeding trough, the width of the flow guide baffle is set to 1 / 10 to 1 / 8 of the inner diameter of the feeding trough, and the thickness of the flow guide baffle is set to 1cm to 2cm.

[0015] Preferably, the baffle is made of stainless steel or aluminum alloy and its outer surface is coated with an anti-stick coating.

[0016] Preferably, the surface of the flow guide baffle has an antistatic coating or is embedded with conductive material to prevent static electricity accumulation.

[0017] Preferably, the inner wall of the feeding tank body is coated with polytetrafluoroethylene, and the bottom of the feeding tank body is provided with a discharge port, and the discharge port is provided with a flow control valve with adjustable opening.

[0018] Preferably, the cleaning device further includes a drive mechanism connected to the rotating brush for driving the rotating brush to rotate.

[0019] This utility model also discloses a dry granulation machine, including the above-mentioned feeding trough structure for a dry granulation machine.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The feeding trough structure for a dry granulator provided by this utility model is simple in structure and easy to use. By setting a flow guiding device, an anti-clogging device and a cleaning device in the feeding trough, it can effectively avoid easy blockage of the feeding trough, improve material conveying efficiency, and thus improve the operating efficiency and granulation quality of the dry granulator.

[0022] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the longitudinal section of the feeding trough structure used in the dry granulation machine of this utility model;

[0024] Figure 2 This is a schematic diagram of the arc shape of the guide baffle of the feeding trough structure used in the dry granulator of this utility model;

[0025] Figure 3 This is a schematic diagram of the triangular shape of the guide baffle of the feeding trough structure used in the dry granulation machine of this utility model. Detailed Implementation

[0026] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the present utility model is further described below in conjunction with specific illustrations. However, this utility model is not limited to the embodiments described below.

[0027] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in reading and understanding the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0028] Furthermore, the terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0029] This embodiment discloses a dry granulation machine, which is a device that directly forms granules from powder raw materials without intermediates or additives, and is suitable for industries such as pharmaceuticals, food, and chemicals. The dry granulation machine conveys powder raw materials to a tableting mechanism via a feeding mechanism, where they are pressed into tablets under the pressure of a hydraulic mechanism. These tablets are then crushed and granulated to form granules. However, existing dry granulation machines suffer from low material conveying efficiency and material waste. Therefore, this embodiment improves the structure of the feeding trough used in the dry granulation machine.

[0030] The feeding trough structure for the dry granulator in this embodiment includes a feeding trough body 1, a flow guiding device disposed on the inner wall of the feeding trough body 1, an anti-clogging device disposed on the outer wall of the feeding trough body 1, and a cleaning device disposed at the bottom of the feeding trough body 1.

[0031] like Figure 1 As shown, the feeding trough body 1 has a funnel-shaped structure that is wider at the top and narrower at the bottom. The top of the feeding trough body 1 is open, and the bottom of the feeding trough body 1 is connected to the feed inlet of the dry granulation machine. The anti-clogging device includes a vibrator 3 installed on the outer wall of the feeding trough body 1, which prevents material from accumulating inside the feeding trough body 1 through vibration. The cleaning device includes several rotating brushes (not shown in the figure). The bristles of the rotating brushes contact the inner wall of the feeding trough body 1 to clean residual material inside the feeding trough body 1.

[0032] like Figure 2 and Figure 3 As shown, the guide baffle 5 is arc-shaped or triangular, and its outer surface is smooth and flat. The arc-shaped guide baffle 5 allows for smooth material flow, reducing material accumulation at its edge. Its curvature can be adjusted according to the shape of the inner wall of the feeding trough to achieve optimal material guiding effect. The arc-shaped guide baffle 5 is suitable for materials with poor flowability or larger particles, effectively preventing material adhesion to the inner wall of the feeding trough. The triangular guide baffle 5's tip effectively disperses the material, ensuring uniform distribution. Its tip angle can be adjusted according to the material's characteristics to adapt to different material flow requirements. The triangular guide baffle 5 is suitable for materials with good flowability, quickly guiding material flow and reducing the possibility of blockage.

[0033] The flow guide baffles 5 are evenly distributed from top to bottom along the inner wall of the feeding trough body 1. The spacing between two adjacent flow guide baffles 5 can be adjusted according to the height of the feeding trough body 1 and the characteristics of the material. In this embodiment, the flow guide baffles 5 are spaced 10cm to 20cm apart in the vertical direction of the inner wall of the feeding trough body 1 to ensure smooth material flow. For example, a flow guide baffle is installed every 15cm from top to bottom on the inner wall of the feeding trough body to form a continuous flow channel.

[0034] In one example, to further improve the flow efficiency of materials, the guide baffles 5 are staggered, with adjacent guide baffles 5 offset by 5cm to 10cm in the horizontal direction of the inner wall of the feeding trough body 1, so that the material continuously changes the flow direction during the flow process, forming a zigzag flow path, thereby reducing the possibility of material accumulation.

[0035] In one example, the length and width of the guide baffle 5 are adjusted according to the inner diameter of the feeding trough body 1 and the characteristics of the material. The length of the guide baffle 5 is set to 1 / 4 to 1 / 3 of the inner diameter of the feeding trough body 1. The width of the guide baffle 5 is set to 1 / 10 to 1 / 8 of the inner diameter of the feeding trough body 1. For example, when the inner diameter of the feeding trough body 1 is 30 cm, the length of the guide baffle 5 is set to 7.5-10 cm, and its width is set to 3-3.75 cm. To ensure that the guide baffle 5 will not deform or be damaged during long-term use, a guide baffle of appropriate thickness is selected according to the strength and durability of the material, and the thickness of the guide baffle (5) is set to 1 cm to 2 cm. It should be noted that the length of the guide baffle 5 refers to the distance from the inner wall of the feeding trough body 1 to the center of the feeding trough body 1, and the width of the guide baffle 5 refers to its radial width.

[0036] In this embodiment, the flow guide baffle 5 is made of stainless steel or aluminum alloy, and its outer surface is smoothed to reduce material adhesion. For example, polishing, sandblasting, or coating processes are used to make the surface of the flow guide baffle 5 smooth and flat. The outer surface of the flow guide baffle 5 is coated with an anti-stick coating, such as a layer of polytetrafluoroethylene (PTFE), to reduce material adhesion. In one example, an antistatic coating is added to the outer surface of the flow guide baffle 5 or conductive materials are embedded to prevent static electricity accumulation, thereby avoiding material adhesion.

[0037] The cleaning device is located at the bottom of the feeding trough body 1 and includes a rotating brush and a drive mechanism. The rotating brush extends from the bottom of the feeding trough body 1 into its interior, with the bristles in close contact with the inner wall of the feeding trough body 1. The drive mechanism is connected to the rotating brush and is used to drive the rotating brush to rotate, thereby cleaning residual material inside the feeding trough body 1. In this embodiment, the number of rotating brushes is set to 2-12, and the specific number is adjusted according to the size of the feeding trough body 1.

[0038] In one example, the inner wall of the feeding tank body 1 is also coated with polytetrafluoroethylene. The bottom of the feeding tank body 1 is provided with a discharge port, and an adjustable flow control valve 6 is provided at the discharge port. By adjusting the opening of the flow control valve, the conveying speed of the material can be precisely controlled to ensure the stable operation of the pellet mill.

[0039] In operation, material is fed into the feeding trough structure through the top opening of the feeding trough body 1. The material flows downward along the path formed by the guide baffles 5 inside the feeding trough body 1 and enters the feed inlet of the dry granulator. During operation, the vibrator 3 is turned on to vibrate the feeding trough body 1, preventing material from accumulating and clogging inside. The opening of the flow control valve 6 is adjusted to precisely control the material conveying speed. When only a small amount of material remains inside the feeding trough body 1, the drive mechanism is activated, causing the rotating brush to rotate. The bristles of the rotating brush contact the inside of the feeding trough body 1, causing the material remaining on the inner wall to flow downward into the feed inlet of the dry granulator.

[0040] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A feeding slot structure for a dry granulator, characterized by, It includes a feeding tank body (1), a flow guiding device (2) disposed on the inner wall of the feeding tank body (1), an anti-blocking device disposed on the outer wall of the feeding tank body (1), and a cleaning device disposed at the bottom of the feeding tank body (1); The feeding trough body (1) is a funnel-shaped structure that is wider at the top and narrower at the bottom. The top of the feeding trough body (1) is open, and the bottom of the feeding trough body (1) is connected to the feed inlet of the dry granulation machine. The flow guiding device (2) includes several flow guiding baffles (5), which are evenly distributed from top to bottom along the inner wall of the feeding tank body (1) to guide the flow of materials. The anti-clogging device includes a vibrator (3) installed on the outer wall of the feeding tank body (1) to prevent material accumulation by vibration; The cleaning device includes several rotating brushes, the bristles of which contact the inner wall of the feeding tank body (1) to clean the residual material inside the feeding tank body (1).

2. The feeding slot structure for a dry granulator according to claim 1, wherein The guide baffle (5) is arc-shaped or triangular, and the outer surface of the guide baffle (5) is smooth and flat.

3. The feeding slot structure for a dry granulator according to claim 1, wherein Several of the aforementioned guide baffles (5) are spaced apart in the vertical direction of the inner wall of the feeding tank body (1), with a spacing between 10cm and 20cm.

4. The feeding slot structure for a dry granulator according to claim 1, wherein The adjacent guide baffles (5) are offset by 5cm to 10cm in the horizontal direction of the inner wall of the feeding tank body (1), so that the material continuously changes the flow direction during the flow process, forming a zigzag flow path.

5. The feeding slot structure for a dry granulator according to claim 1, wherein The length of the flow guide baffle (5) is set to 1 / 4 to 1 / 3 of the inner diameter of the feeding trough body (1), the width of the flow guide baffle (5) is set to 1 / 10 to 1 / 8 of the inner diameter of the feeding trough body (1), and the thickness of the flow guide baffle (5) is set to 1cm to 2cm.

6. The feeding slot structure for a dry granulator according to claim 1, wherein The guide baffle (5) is made of stainless steel or aluminum alloy and its outer surface is coated with an anti-stick coating.

7. The feeding slot structure for a dry granulator according to claim 1, wherein The surface of the flow guide baffle (5) has an antistatic coating or is embedded with conductive material to prevent static accumulation.

8. The feeding slot structure for a dry granulator according to claim 1, wherein The inner wall of the feeding tank body (1) is coated with polytetrafluoroethylene, and the bottom of the feeding tank body (1) is provided with a discharge port, and an adjustable flow control valve (6) is provided at the discharge port.

9. The feeding slot structure for a dry granulator according to claim 1, wherein The cleaning device also includes a drive mechanism connected to the rotating brush for driving the rotating brush to rotate.

10. A dry granulator characterized in that, The feeding trough structure for a dry pellet mill includes any one of claims 1 to 9.

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