Anti-blocking structure of tubular conveying equipment for cement bin

By installing a gate and control handle anti-blocking structure on the tubular conveying equipment of the cement silo, the blockage problem caused by the weight of the material is solved, enabling flexible control of material conveying, improving equipment reliability and extending service life.

CN224184987UActive Publication Date: 2026-05-01ZHENGZHOU GULIT MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU GULIT MACHINERY MANUFACTURING CO LTD
Filing Date
2025-06-18
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In traditional tubular conveying equipment in cement silos, the weight of the material directly acts on the spiral blades, causing excessive load on the drive motor, which may prevent the blades from rotating and lead to blockages.

Method used

An anti-clogging structure, including a gate and a control handle, is installed on the tubular conveying equipment of the cement silo. The opening and closing of the valve hole is adjusted by the gate to flexibly control the material conveying volume and reduce the pressure on the spiral blades.

Benefits of technology

It effectively avoids blockages caused by excessive material weight, improves the reliability of the conveying system, extends the service life of the equipment, reduces maintenance and replacement costs, and improves the convenience of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-blocking structure of tubular conveying equipment for a cement bin, which comprises a bin body and a tubular conveying mechanism, the tubular conveying mechanism is arranged at the bottom of the bin body, the tubular conveying mechanism is communicated with the bin body through a plurality of groups of valve holes, the anti-blocking structure is arranged on the bin body, and the tubular conveying mechanism is communicated with the bin body through a plurality of groups of valve holes. The anti-blocking structure comprises a gate plate used for blocking the valve hole and a control handle used for driving the gate plate to move. The gate plate is matched with the control handle, so that the material conveying amount can be flexibly adjusted according to the storage amount of materials in the bin, a large amount of materials are prevented from directly and heavily pressing the spiral blade, and the problem of blockage caused by overlarge load of a driving motor and incapability of rotating the spiral blade due to overweight materials is solved; the reliability of a cement bin conveying system is greatly improved, the service life of the whole tubular conveying equipment is prolonged, and when powder in the bin is not used up, repair and maintenance can be carried out only by closing the flashboard, so that the cement bin can be repaired more conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of cement silo technology, specifically to an anti-clogging structure for a tubular conveying device for cement silos. Background Technology

[0002] A cement silo is a closed tank for storing bulk materials and is widely used in concrete mixing plants, construction projects, road and bridge construction, and component factories.

[0003] Most existing cement silos have tubular conveying equipment at the bottom of the silo body to transport materials inside the silo. However, because the traditional tubular conveying equipment is directly connected to the inside of the cement silo, when there is a lot of material stored in the cement silo, the weight of the material acts directly on the spiral blades, which increases the rotational resistance of the spiral blades. The pressure of the heavy material on the spiral blades can cause the drive motor to be overloaded, which may prevent it from driving the blades to rotate, thus causing blockage problems. Utility Model Content

[0004] The purpose of this invention is to provide an anti-clogging structure for a tubular conveying device for cement silos, 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:

[0006] An anti-clogging structure for a tubular conveying device for a cement silo includes a silo body and a tubular conveying mechanism. The tubular conveying mechanism is located at the bottom of the silo body and is connected to the silo body through multiple sets of valve holes. An anti-clogging structure is provided on the silo body, and the anti-clogging structure includes a gate for sealing the valve holes and a control handle for driving the gate to move.

[0007] Preferably, the tubular conveying mechanism is a screw conveyor, and the screw conveyor has a rotatable drive shaft inside, on which helical blades are provided.

[0008] Preferably, the outside of the chamber is equipped with a control handle that can swing.

[0009] Preferably, the interior of the chamber is provided with multiple sets of gates, which are connected by connectors. One end of the connector is provided with a connecting frame, and a connecting rod is provided on the connecting frame. One end of the connecting rod extends to the outside of the chamber and is movably connected to one end of the control handle.

[0010] Preferably, the container body is provided with a leak-proof structure, and the connecting rod extends to the outside of the container body through the leak-proof structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the cooperation of the gate and the control handle, can flexibly adjust the material conveying volume according to the material storage volume in the silo, avoiding the direct heavy pressure of a large amount of material on the spiral blades, solving the blockage problem caused by excessive load on the drive motor and the inability of the spiral blades to rotate due to excessive material weight, greatly improving the reliability of the cement silo conveying system, extending the service life of the entire tubular conveying equipment, reducing equipment maintenance and replacement costs, and when the powder in the silo is not used up, repair and maintenance can be carried out simply by closing the gate, making the maintenance of the cement silo more convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the valve hole structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the gate structure of this utility model.

[0016] In the diagram: 1. Silo body; 2. Screw conveyor; 3. Valve hole; 4. Drive shaft; 5. Gate; 6. Connector; 7. Connecting frame; 8. Connecting rod; 9. Leak-proof structure; 10. Control handle. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-3 A clog prevention structure for a tubular conveying device for a cement silo includes a silo body 1 and a tubular conveying mechanism. The tubular conveying mechanism is located at the bottom of the silo body 1 and is connected to the silo body 1 via multiple sets of valve holes 3. An clog prevention structure is installed on the silo body 1, including a gate 5 for sealing the valve holes 3 and a control handle 10 for driving the gate 5. The tubular conveying mechanism is a screw conveyor 2, with a rotatable drive shaft 4 inside the screw conveyor 2. The drive shaft 4 has helical blades. The silo body 1 is the basic structure of the entire device, used to store materials such as cement and to provide installation support for other components (such as the tubular conveying mechanism and the clog prevention structure). The screw conveyor 2, through the rotation of its internal drive shaft 4 and helical blades, conveys the material in the silo body 1 from the bottom valve holes 3 to a designated location, completing the material transfer function. The valve holes 3 are located at the bottom of the silo body 1, connecting the interior of the silo body 1 to the screw conveyor 2, allowing material to flow from the silo body 1 into the conveying mechanism. The gate 5 controls the flow of material by sealing or opening the valve holes 3. The amount of material flowing into the screw conveyor 2 from the silo 1 is controlled to prevent the weight of the material from directly pressing the screw blades, thus reducing rotational resistance. When there is a large amount of material stored in the silo, the direct pressure of the material on the screw blades can be reduced by closing part or all of the gate 5, preventing the drive motor from being overloaded and causing blockage. The control handle 10 is located outside the silo 1, and the operator can directly drive the gate 5 to move by swinging the handle, thereby controlling the opening or closing of the valve hole 3. The operation is convenient and real-time. Through the cooperation of the gate 5 and the control handle 10, the material conveying volume can be flexibly adjusted according to the amount of material stored in the silo, avoiding the direct pressure of a large amount of material on the screw blades. This solves the blockage problem caused by the excessive load on the drive motor and the inability of the screw blades to rotate due to excessive material weight, greatly improving the reliability of the cement silo conveying system, extending the service life of the entire tubular conveying equipment, and reducing the equipment maintenance and replacement costs. Moreover, when the powder in the silo is not used up, maintenance can be carried out simply by closing the gate 5, making the maintenance of the cement silo more convenient.

[0021] Please see Figure 2 and Figure 3The external of the chamber 1 is equipped with a swingable control handle 10. The interior of the chamber 1 contains multiple sets of gates 5, which are connected by a connector 6. One end of the connector 6 has a connecting frame 7, on which a connecting rod 8 is mounted. One end of the connecting rod 8 extends to the outside of the chamber 1 and is movably connected to one end of the control handle 10. The chamber 1 is equipped with a leak-proof structure 9, and the connecting rod 8 extends to the outside of the chamber 1 through the leak-proof structure 9. The connector 6 connects the multiple sets of gates 5 in series, allowing the action of a single handle to simultaneously control multiple gates 5, thus improving efficiency. For efficient operation, one end of the connecting rod 8 is connected to the connecting frame 7 inside the silo body 1, and the other end extends to the outside and is movably connected to the control handle 10. This converts the swinging motion of the handle into the movement of the internal gate 5, thus transmitting force. Through the connecting frame 7 and the connecting rod 8, the action of the control handle 10 is converted into the linear motion of the gate 5, ensuring the consistency and reliability of the gate 5's opening and closing action. The leak-proof structure 9 is set at the position where the connecting rod 8 passes through the silo body 1 to prevent the material inside the silo from leaking through the gap between the connecting rod 8 and the silo body 1, ensuring the airtightness of the silo body 1 and the cleanliness of the working environment.

[0022] Working principle: During use, the cement silo stores materials in the silo body 1. The materials are conveyed by the tubular conveying mechanism (screw conveyor 2) at the bottom. During normal conveying, the valve hole 3 is open. Under the action of gravity, the materials in the silo body 1 fall into the screw conveyor 2 through the valve hole 3. The drive shaft 4 drives the screw blades to rotate, pushing the materials to the designated position. When the amount of materials stored in the silo body 1 is large, in order to avoid the large amount of materials directly pressing the screw blades and causing excessive load on the drive motor, the operator can adjust it by swinging the control handle 10 on the outside of the silo body 1. When the control handle 10 swings, it drives the connecting rod 8 connected to it to move. The connecting rod 8 transmits the force to the connecting frame 7. The connecting frame 7 then moves multiple sets of gates 5 synchronously through the connecting piece 6 to partially or completely block the valve hole 3. By controlling the opening degree of the valve orifice 3, the amount of material flowing into the screw conveyor 2 is precisely controlled, reducing the material pressure on the screw blades, reducing rotational resistance, ensuring that the drive shaft 4 and the screw blades can rotate stably, and maintaining the normal conveying of materials. The leak-proof structure 9 forms a seal at the point where the connecting rod 8 passes through the hopper 1 to prevent material leakage and ensure the sealing and stability of the entire conveying process.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An anti-clogging structure for a tubular conveying device for a cement silo, comprising a silo body (1) and a tubular conveying mechanism, wherein the tubular conveying mechanism is provided at the bottom of the silo body (1), and the tubular conveying mechanism is connected to the silo body (1) through multiple sets of valve holes (3), characterized in that: The chamber (1) is provided with an anti-blocking structure, which includes a gate (5) for blocking the valve hole (3) and a control handle (10) for driving the gate (5) to move.

2. The anti-clogging structure of a tubular conveying device for a cement silo according to claim 1, characterized in that: The tubular conveying mechanism is a screw conveyor (2), and the screw conveyor (2) has a rotatable drive shaft (4) inside, and a helical blade is provided on the drive shaft (4).

3. The anti-blocking structure of a tubular conveying apparatus for a cement silo according to claim 1, characterized in that: The external part of the chamber (1) is equipped with a control handle (10) that can swing.

4. The anti-clogging structure of a tubular conveying device for a cement silo according to claim 3, characterized in that: The interior of the chamber (1) is provided with multiple sets of gates (5), which are connected by a connector (6). One end of the connector (6) is provided with a connecting frame (7), and a connecting rod (8) is provided on the connecting frame (7). One end of the connecting rod (8) extends to the outside of the chamber (1) and is movably connected to one end of the control handle (10).

5. The anti-blocking structure of a tubular conveying apparatus for a cement silo according to claim 4, characterized in that: The container (1) is provided with a leak-proof structure (9), and the connecting rod (8) extends to the outside of the container (1) through the leak-proof structure (9).