Double-chute structure with hydraulic fan-shaped gate

Abstract

The utility model relates to a double-chute structure with a hydraulic fan-shaped gate, and belongs to the field of raw material loading and unloading equipment. Comprising two discharging funnels which are symmetrically arranged, and a fan-shaped gate is arranged in each discharging funnel; the fan-shaped gate is fixedly connected with a gate plate arranged outside the blanking funnel through a rotating shaft; the two fan-shaped gates are arranged tangentially, and the first flashboard and the second flashboard are meshed with each other through sawtooth structures on the edges; the first flashboard is connected with an electric-hydraulic push rod, the electric-hydraulic push rod drives the first flashboard to rotate around the rotating shaft, the second flashboard and the first flashboard rotate in the opposite direction through a sawtooth structure, and then the two fan-shaped gates are driven to be opened and closed. A feeding hole in the top of the blanking funnel is provided with a flange for connecting a stock bin; a dust cover is arranged on the discharge hole; and the fan-shaped gate is also provided with a manual gate valve. The anti-blocking device is used for controlling material loading and unloading at the bottom of the raw material bin, effectively enlarges the area of a discharge port, increases the storage capacity of the bin, and has an excellent anti-blocking function.

Description

Technical Field

[0001] This utility model belongs to the field of raw material loading and unloading equipment, and relates to a double chute structure with a hydraulic sector gate. Background Technology

[0002] Loading and unloading gate funnels, as an innovative and advanced device that integrates the design concepts of gates and funnels, are increasingly widely used in modern industrial production and have become an indispensable part of the field of material flow control. This equipment not only cleverly combines the precise control function of a gate with the guiding and discharging characteristics of a funnel, but is also particularly suitable for applications requiring extremely high precision in material conveying or discharging, such as metal powder conveying in the metallurgical industry, grain distribution in grain processing, and the precise proportioning of various chemical raw materials in the chemical industry.

[0003] In the management of storage silos, loading and unloading gates and funnels play a crucial role. Traditionally, the discharge outlet at the bottom of the silo often relies solely on simple gates to control the flow of materials. However, these traditional gates have many design limitations. For example, many gates use a single chute or flat gate structure. This design results in a relatively small inlet size, which in turn limits the design angle of the silo bottom, significantly compressing the effective storage space of the silo. This not only affects storage efficiency but also increases the difficulty and cost of material management.

[0004] Even more problematic is that smaller outlet designs can easily lead to material accumulation and jamming at the outlet, especially for highly viscous, moist, or large-lump materials. This problem is particularly pronounced. Material accumulation not only affects the smoothness of the production process but can also cause equipment damage or production accidents, increasing maintenance costs and downtime.

[0005] Furthermore, traditional gates, due to their planar contact design, often fail to achieve a complete seal when closed, leaving small gaps between the gate and the frame. These gaps not only provide channels for the leakage of fine particulate materials, leading to environmental pollution, but may also leave residues in the material, creating a potential for secondary blockages. This risk of blockage is particularly significant when handling materials that are prone to caking or stickiness, introducing considerable uncertainty into production.

[0006] On the other hand, existing gates, especially planar gates, often exhibit weaknesses in structural strength and durability when subjected to high-pressure material impacts. Prolonged exposure to high-intensity impacts can easily cause deformation or wear, particularly in applications involving large silos. Due to the large volume and high pressure of materials, the operating conditions for these gates are even more severe, placing higher demands on the wear resistance and structural stability of the materials. Damage to the gates not only affects production schedules but can also lead to material leaks, posing threats to the environment and safe production.

[0007] In summary, it is necessary to overcome the many shortcomings of traditional gates and solve the above-mentioned technical problems by optimizing the structure, improving the airtightness and enhancing the structural strength to achieve efficient and precise control of material flow. Utility Model Content

[0008] In view of this, the purpose of this utility model is to provide a double chute structure with a hydraulic fan-shaped gate, which is used to control the loading and unloading of materials at the bottom of the raw material silo, effectively expand the discharge port area, increase the storage capacity of the silo, solve the problem of the existing gate inlet being too small, and has excellent anti-blocking function.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A double-chute structure with hydraulic sector gates includes a feeding hopper and sector gates. The sector gates are located inside the feeding hopper and are fixedly connected to gate plates located outside the feeding hopper via a rotating shaft. Two sector gates are tangentially arranged, and the corresponding two gate plates mesh with each other through a serrated structure on their edges. Each gate plate includes a first gate plate and a second gate plate. A push rod is connected to the first gate plate, and the push rod drives the first gate plate to rotate around the rotating shaft. The second gate plate rotates in the opposite direction to the first gate plate through the serrated structure, thereby driving the opening and closing of the two sector gates.

[0011] Optionally, two feeding hoppers are arranged in sequence, and each feeding hopper is provided with a fan-shaped gate. The first gate and the second gate are respectively arranged outside the two feeding hoppers.

[0012] Optionally, each of the feeding hoppers is provided with a feed inlet at the top, and each feed inlet is provided with a flange for connecting to the hopper.

[0013] Optionally, the tangent surface of the gate is a circular arc surface.

[0014] Optionally, the sector gate is equipped with a manual slide valve.

[0015] Optionally, the push rod is an electro-hydraulic push rod.

[0016] Optionally, the bottom of the feeding funnel is provided with a discharge port, and a dust cover is provided on the discharge port.

[0017] Optionally, the two feeding funnels are arranged symmetrically.

[0018] The beneficial effects of this utility model are as follows:

[0019] The double chute structure of this invention is applied to the lower discharge port of a large storage silo, which can effectively expand the discharge port area, increase the storage capacity of the silo, solve the problem of the existing gate inlet being too small, and has excellent anti-clogging function.

[0020] (1) This scheme adopts a double feed port and double chute design, which effectively increases the discharge area of ​​the silo, increases the storage capacity of the silo, and avoids material blockage; it can also disperse the material flow and reduce local accumulation pressure.

[0021] (2) The use of a fan-shaped gate and push rod structure allows for real-time adjustment of the discharge rate, making operation convenient and the structure simple. The electro-hydraulic push rod can precisely control the gate opening, avoiding material jamming in the half-open state; while the sawtooth structure on the edge of the gate is forced to synchronize through mechanical meshing, eliminating the need for additional sensors or control systems; the sawtooth structure can also share the load through inter-tooth meshing, improving impact resistance.

[0022] (3) The tangent arc matching design of the fan-shaped gate and the gate plate allows the gate to completely avoid the discharge channel when it is opened, maximizing the flow area.

[0023] (4) The sector gate is also equipped with a manual slide valve, which provides a purely mechanical control method when the gate, valve or electro-hydraulic drive device fails or is under maintenance, ensuring the basic function of the equipment under extreme conditions; it works in conjunction with the gate and valve to achieve more precise flow control by manually fine-tuning the opening.

[0024] (5) The discharge port is equipped with a dust cover to prevent dust from scattering and protect the working environment.

[0025] The overall structure has been systematically optimized in terms of sealing, control precision and durability, achieving multiple technical goals such as increased storage capacity, anti-clogging, anti-leakage and ease of operation.

[0026] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0028] Figure 1 This is an isometric view of a hydraulic sector gate.

[0029] Figure 2 This is a front view of a hydraulic sector gate;

[0030] Figure 3 This is a top view of a hydraulic sector gate.

[0031] Figure label:

[0032] 1. Feeding hopper, 2. Gate, 21. First gate, 22. Second gate, 3. Flange, 4. Push rod, 5. Dust cover, 6. Sector gate. Detailed Implementation

[0033] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0035] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] Please see Figures 1-3 The present invention is a double chute structure with hydraulic sector gates 6, comprising a feeding hopper 1 and sector gates 6; the sector gates 6 are located inside the feeding hopper 1 and are fixedly connected to gate plates 2 located outside the feeding hopper 1 via a rotating shaft; two sector gates 6 are tangentially arranged, and the corresponding two gate plates 2 are meshed with each other through the sawtooth structure of their edges; the gate plates 2 include a first gate plate 21 and a second gate plate 22, a push rod 4 is connected to the first gate plate 21, the push rod 4 drives the first gate plate 21 to rotate around the rotating shaft, and the second gate plate 22 rotates in the opposite direction to the first gate plate 21 through the sawtooth structure, thereby driving the opening and closing of the two sector gates 6.

[0037] Preferably, the push rod 4 is an electro-hydraulic push rod 4, which can accurately control the gate opening and avoid material jamming in the half-open state.

[0038] Push rod 4 pushes gate 2 upwards to rotate. Gates 2 rotate synchronously through gear meshing. The rotating shaft drives the sector gate 6 inside the discharge hopper 1 to rotate, and controls the discharge flow rate according to the opening and closing state of the sector gate 6 at different limit positions. The gate gradually opens when rotating upwards, increasing the discharge flow rate, and gradually closes when rotating downwards, decreasing the discharge flow rate.

[0039] The serrated structure on the edge of the gate 2 is forced to synchronize through mechanical meshing, without the need for additional sensors or control systems; the serrated structure can also share the load through inter-tooth meshing, improving its impact resistance.

[0040] In some other embodiments of this utility model, two feeding hoppers 1 are arranged sequentially and symmetrically. Each feeding hopper 1 is equipped with a fan-shaped gate 6. A first gate plate 21 and a second gate plate 22 are respectively arranged outside the two feeding hoppers 1. The fan-shaped gates 6 and the gate plates 2 are arranged symmetrically. Each feeding hopper 1 has a feed inlet at the top, and each feed inlet is equipped with a flange 3 for connecting to the silo. The design of double feed inlets and double chutes effectively increases the discharge area of ​​the silo, increases the storage capacity of the silo, and avoids material blockage; it can also disperse the material flow and reduce local accumulation pressure.

[0041] Preferably, the tangent surface of the gate 2 is an arc surface, so that the gate can completely avoid the discharge channel when it is opened, maximizing the flow area.

[0042] Preferably, the bottom of the feeding hopper 1 is provided with a discharge port, and a dust cover 5 is provided on the discharge port to prevent dust from scattering and to protect the working environment.

[0043] In some embodiments of this utility model, the sector gate 6 is equipped with a manual slide gate valve. In the event of a hydraulic drive system failure (such as failure of the electro-hydraulic actuator 4 or hydraulic leakage) or a sudden power outage, the manual slide gate valve can serve as an emergency shut-off device, allowing manual operation to directly cut off the material flow, preventing material leakage, equipment damage, or safety accidents caused by gate malfunction. Even in extreme cases, the manual slide gate valve provides a purely mechanical control method to ensure the basic functionality of the equipment under extreme conditions. Furthermore, when maintenance of the sector gate 6 or the hydraulic actuator 4 is required, the manual slide gate valve can be closed first to isolate the maintenance area from the silo, preventing continuous material falling and interfering with operations, while also ensuring the safety of maintenance personnel. In the preceding embodiments, although the electro-hydraulic actuator 4 can adjust the gate opening, it may have limitations in precision for small flow rate adjustments; the manual slide gate valve allows for more precise flow control through manual fine-tuning of the opening.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double-chute structure with a hydraulic sector gate, characterized in that: It includes a feeding hopper (1) and a fan-shaped gate (6); the fan-shaped gate (6) is located inside the feeding hopper (1) and is fixedly connected to a gate plate (2) located outside the feeding hopper (1) through a rotating shaft; two fan-shaped gates (6) are tangentially arranged, and the two corresponding gate plates (2) mesh with each other through the sawtooth structure of their edges; the gate plate (2) includes a first gate plate (21) and a second gate plate (22), a push rod (4) is connected to the first gate plate (21), the push rod (4) drives the first gate plate (21) to rotate around the rotating shaft, and the second gate plate (22) rotates in the opposite direction to the first gate plate (21) through the sawtooth structure, thereby driving the opening and closing of the two fan-shaped gates (6).

2. The double-chute structure with a hydraulic sector gate according to claim 1, characterized in that: Two feeding hoppers (1) are arranged in sequence, and each feeding hopper (1) is provided with a fan-shaped gate (6). The first gate plate (21) and the second gate plate (22) are respectively arranged outside the two feeding hoppers (1).

3. The double-chute structure with a hydraulic sector gate according to claim 1, characterized in that: Each of the feeding hoppers (1) has a feed inlet at the top, and each feed inlet is provided with a flange (3) for connecting to the hopper.

4. The double-chute structure with a hydraulic sector gate according to claim 1, characterized in that: The tangent surface of the gate (2) is a circular arc surface.

5. The double-chute structure with a hydraulic sector gate according to claim 1, characterized in that: The fan-shaped gate (6) is equipped with a manual slide valve.

6. The double-chute structure with a hydraulic sector gate according to claim 1, characterized in that: The push rod (4) is an electro-hydraulic push rod (4).

7. The double-chute structure with a hydraulic sector gate according to claim 1, characterized in that: The bottom of the feeding hopper (1) is provided with a discharge port, and a dust cover (5) is provided on the discharge port.

8. The double-chute structure with a hydraulic sector gate according to claim 1, characterized in that: The two feeding funnels (1) are symmetrically arranged.

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