Conical hopper suitable for discharging straw raw material powder

Abstract

The utility model discloses a conical hopper suitable for blanking straw raw material powder, which comprises a hopper body, a first air cylinder and a second air cylinder are arranged in the hopper body, a height difference exists between the first air cylinder and the second air cylinder, the output end of the first air cylinder and the output end of the second air cylinder are respectively provided with a push plate, and the push plates are arranged on the hopper body. The working surface of the push plate faces the direction of the discharge hole of the hopper body; the straw crushing device is simple in structure and reasonable in design, and straw powder possibly forming a bridge in the hopper is gradually damaged through cooperation of the first air cylinder and the second air cylinder; meanwhile, the height difference between the first air cylinder and the second air cylinder enables the push plate to act on material areas with different heights in the hopper, graded pushing of the stepped push plate is achieved, the damage range is enlarged, the probability of bridging of straw powder in the hopper is effectively reduced, and therefore the discharging efficiency and the production stability of the hopper are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of straw recycling equipment, specifically a conical hopper suitable for feeding straw raw material powder. Background Technology

[0002] With the widespread utilization of straw resources, straw powder, as an important biomass material, is widely used in energy, feed, and chemical industries. However, straw powder contains a large number of fibrous particles (50-2000μm in length), and is lightweight and loosely structured. During the feeding process in the hopper, bridging can easily occur, leading to material blockage at the hopper outlet, affecting continuous and uniform feeding. In severe cases, it can cause the lower part of the hopper to be empty while the upper part accumulates, affecting production efficiency and the stability of equipment operation.

[0003] In existing technologies, vibrators use high-frequency vibration to cause powder stratification, resulting in uneven breakdown and limited effectiveness; rotary scrapers only act on the side walls of the hopper, failing to address bridging in the central area and experiencing rapid wear; while air cannons can temporarily disperse materials, they generate significant dust, consume large amounts of energy, and suffer high material losses, making them unsuitable for production needs. Therefore, developing a conical hopper structure that effectively prevents straw powder bridging has become a key technological requirement for improving feeding efficiency and ensuring stable production operation. Utility Model Content

[0004] The purpose of this invention is to provide a conical hopper suitable for feeding straw raw material powder, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a conical hopper suitable for feeding straw raw material powder, comprising a hopper body, wherein a first cylinder and a second cylinder are provided inside the hopper body, and there is a height difference between the first cylinder and the second cylinder, wherein the output ends of the first cylinder and the second cylinder are provided with push plates, and the working surface of the push plates faces the discharge port of the hopper body.

[0006] By coordinating the first and second cylinders, the straw powder that may form bridges in the hopper is progressively broken up. At the same time, the height difference between the first and second cylinders allows the pusher plate to act on material areas at different heights in the hopper, realizing the stepped pusher plate to advance in stages, expanding the destruction range, effectively reducing the probability of straw powder forming bridges in the hopper, and thus significantly improving the hopper's feeding efficiency and production stability.

[0007] Preferably, the pusher plate is slidably connected to the hopper body via a linear slide rail.

[0008] Preferably, the first cylinder is positioned between 20% and 60% of the height of the hopper body, and the second cylinder is positioned below 20% of the height of the hopper body.

[0009] Preferably, the inner wall of the hopper is coated with a polytetrafluoroethylene coating.

[0010] Preferably, the angle between the conical surface of the hopper body and the horizontal plane is 60°.

[0011] Preferably, the outlet end of the hopper body is provided with a star-shaped discharge valve. Attached Figure Description

[0012] Figure 1 This is a front view of the internal structure of the hopper body of this utility model;

[0013] Figure 2 This is a side view of the internal structure of the hopper body of this utility model.

[0014] In the diagram: 1. Hopper body; 2. First cylinder; 3. Second cylinder; 4. Push plate; 5. Linear slide rail; 6. Rotary star valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model.

[0017] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0018] 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 utility model, "several" means two or more, unless otherwise explicitly specified.

[0019] Example

[0020] Please see Figure 1-2 As shown, the present invention provides a conical hopper technical solution for feeding straw raw material powder: a conical hopper for feeding straw raw material powder includes a hopper body 1, a first cylinder 2 and a second cylinder 3 are installed on the inner side wall of the hopper body 1, there is a height difference between the first cylinder 2 and the second cylinder 3, and push plates 4 are installed at the output ends of the first cylinder 2 and the second cylinder 3, and the working surface of the push plates 4 faces the discharge port of the hopper body 1.

[0021] In this embodiment, the first cylinder 2 is positioned between 20% and 60% of the height of the hopper body 1, and the second cylinder 3 is positioned below 20% of the height of the hopper body 1.

[0022] Through the cooperation of the first cylinder 2 and the second cylinder 3, the straw powder that may form bridges in the hopper body 1 is progressively broken up. At the same time, the height difference between the first cylinder 2 and the second cylinder 3 allows the pusher plate 4 to act on material areas at different heights in the hopper body 1, realizing the graded advancement of the pusher plate 4, expanding the destruction range, effectively reducing the probability of straw powder forming bridges in the hopper body 1, thereby significantly improving the feeding efficiency and production stability of the hopper body 1.

[0023] The push plate 4 is slidably connected to the hopper body 1 via a linear slide rail 5, and the push plate 4 is also embedded with polytetrafluoroethylene wear-resistant strips to enhance the wear resistance of the push plate 4 and extend its service life.

[0024] The inner wall of the hopper body 1 is coated with polytetrafluoroethylene to improve its wear resistance and anti-sticking effect.

[0025] The angle between the conical surface of the hopper body 1 and the horizontal plane is 60°. This design can further reduce the possibility of straw raw materials bridging inside the hopper body 1.

[0026] The outlet end of the hopper body 1 is equipped with a star-shaped discharge valve 6, which is used to realize the quantitative discharge of materials and ensure the uniformity and controllability of discharge.

[0027] In this embodiment, the surface of the push plate 4 can be further provided with anti-slip teeth to achieve a better bridge-breaking effect.

[0028] The working principle of this utility model is as follows:

[0029] In this embodiment, straw powder enters the hopper through the inlet end of the hopper body 1. First, the first cylinder 2, located in the middle, drives its end pusher plate 4 to push the straw powder downwards to the position of the second cylinder 3. Subsequently, the second cylinder 3 further pushes the pusher plate 4, continuously pushing the straw powder downwards to the star-shaped discharge valve 6 at the outlet end of the hopper body 1. The star-shaped discharge valve 6 is responsible for quantitatively discharging the material, achieving precise control of the discharge volume, and ensuring smooth and uniform discharge of the material.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A conical hopper suitable for feeding straw raw material powder, characterized in that: The hopper includes a hopper body, inside which are provided a first cylinder and a second cylinder, with a height difference between the first cylinder and the second cylinder. The output ends of the first cylinder and the second cylinder are provided with push plates, and the working surface of the push plates faces the discharge port of the hopper body.

2. A conical hopper for feeding straw raw material powder according to claim 1, characterized in that: The pusher plate is slidably connected to the hopper body via a linear slide rail.

3. A conical hopper for feeding straw raw material powder according to claim 2, characterized in that: The first cylinder is positioned between 20% and 60% of the height of the hopper body, and the second cylinder is positioned below 20% of the height of the hopper body.

4. A conical hopper for feeding straw raw material powder according to claim 1, characterized in that: The inner wall of the hopper is coated with polytetrafluoroethylene.

5. A conical hopper for feeding straw raw material powder according to claim 3, characterized in that: The angle between the conical surface of the hopper body and the horizontal plane is 60°.

6. A conical hopper for feeding straw raw material powder according to claim 1, characterized in that: The outlet end of the hopper body is equipped with a star-shaped discharge valve.

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