Anti-blocking screw conveyor

Abstract

The utility model discloses a kind of anti-blocking screw conveyors, belong to material conveying equipment technical field.It includes auger main body, the inside of auger main body is provided with central shaft, the middle part of central shaft is equipped with spiral blade, the end of auger main body is equipped with the driving motor of driving central shaft work, the bottom of auger main body is opened with at least two discharge ports along its material conveying direction, one of which is opened in the end of auger main body;The end of auger main body is also equipped with a baffle, and the baffle is located behind end discharge port.The utility model improves the structure of screw conveyor, can effectively alleviate the problem of screw conveyor end blockage when conveying viscous material, ensure the normal progress of conveying work.

Description

Technical Field

[0001] This utility model belongs to the technical field of material conveying equipment, and more specifically, relates to an anti-clogging screw conveyor. Background Technology

[0002] Screw conveyors (augers) are a type of general-purpose equipment that uses rotating spiral blades to propel materials along the axial direction. They are widely used in chemical, agricultural, and food processing industries. Their basic structure includes a central shaft, spiral blades, a drive unit, and a housing. They have advantages such as simple structure, good sealing, and continuous conveying. However, in complex working conditions (such as conveying viscous materials or materials containing impurities), traditional screw conveyors have the following technical defects: (1) Material blockage: viscous materials (such as chemical colloids and resins) have poor fluidity and are prone to accumulating at the beginning and end of the screw conveyor because spiral blades are generally not installed at the beginning and end of the screw conveyor. This leads to an increase in the frequency of shutdown and cleaning, which seriously reduces efficiency; (2) Low production efficiency: the original screw conveyor uses a single discharge port, which cannot meet the needs of rapid production line production and will cause blockage. Manual disassembly and cleaning are required, resulting in high maintenance costs; (3) Low level of intelligence: the original screw conveyor cannot control the discharge speed, cannot interfere in production, is not conducive to convenient observation, and does not use advanced programs for control.

[0003] Chinese patent application number CN202410108209.3, published on April 12, 2024, discloses an anti-clogging screw conveyor, comprising: a housing with an inlet and a clearance opening on the top side and an outlet on the bottom side; a conveying mechanism having a conveying paddle that can rotate within the housing, the axis of rotation of the conveying paddle being arranged in the left-right direction; and a blockage-clearing mechanism located on the top side of the housing, the blockage-clearing mechanism having a scraper that can move in the left-right and up-down directions, the scraper extending from the clearance opening into the housing and extending to the conveying paddle.

[0004] This solution uses a scraper to remove material adhering to the conveyor paddle during transport, preventing blockages and reducing the frequency of paddle cleaning and maintenance. However, this solution, with its single discharge port, still cannot solve the problem of clogging at the end of the conveyor due to difficulty in discharging viscous materials.

[0005] Chinese patent application number CN202322285250.1, published on April 2, 2024, discloses an anti-clogging material screw conveyor device. The device includes a conveying cylinder with an inlet pipe embedded in its upper right and an outlet pipe embedded in its lower left. Mounting rings are installed at both ends of the conveying cylinder, and auger blades are slidably connected inside the mounting rings. A rotary drive assembly is located at the right end of the conveying cylinder corresponding to the auger blades. This anti-clogging material screw conveyor device uses a geared motor to drive a drive disc to rotate, which, under the action of a limit post and a transmission disc, drives the auger blades to rotate, thus conveying the material. During material conveying, a servo motor drives a crankshaft to rotate, and a transmission rod drives a connecting sleeve to reciprocate, actively driving the auger blades to reciprocate, generating a vibration effect. This prevents the auger blades from becoming clogged due to material compaction during conveying, ensuring smooth screw conveying.

[0006] However, this device also suffers from the problem of using a single discharge port, which cannot solve the issue of viscous materials being prone to blockage at the end of the conveyor due to the difficulty of discharge. Summary of the Invention

[0007] 1. The problem to be solved To address the problem that existing bolt conveyors with a single discharge port tend to accumulate and clog when conveying viscous materials, this invention provides an anti-clogging screw conveyor. By improving the structure of the screw conveyor, it effectively alleviates the problem of clogging at the end of the conveyor when conveying viscous materials, ensuring the normal operation of the conveying process.

[0008] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0009] An anti-clogging screw conveyor includes an auger body, a central shaft inside the auger body, spiral blades mounted in the middle of the central shaft, a drive motor for driving the central shaft mounted at the end of the auger body, at least two discharge ports along the conveying direction at the bottom of the auger body, one of which is located at the end of the auger body; a baffle is also mounted at the end of the auger body, the baffle being located behind the end discharge port.

[0010] As a further improvement to the technical solution, one of the discharge ports is opened at the head end of the auger body, and a baffle is installed in front of the discharge port at the head end.

[0011] As a further improvement to the technical solution, the discharge port has an inverted conical structure.

[0012] As a further improvement to the technical solution, the discharge port is connected to downstream equipment via a flange.

[0013] As a further improvement to the technical solution, a slide gate valve is installed on the flange.

[0014] As a further improvement to the technical solution, a discharge port is provided at the bottom end of the auger body, and the discharge port is located behind the end baffle.

[0015] As a further improvement to the technical solution, a discharge port is provided at the bottom of the head end of the auger body and in front of the head end baffle.

[0016] As a further improvement to the technical solution, a collection bag is provided below the discharge port.

[0017] As a further improvement to the technical solution, the end of the auger body is equipped with a pneumatic jetting device to blow the accumulated material at the end to the discharge port; the pneumatic jetting device is externally connected to a solenoid valve.

[0018] As a further improvement to the technical solution, a quality detection sensor is installed at the end of the auger body, and the quality detection sensor is electrically connected to the solenoid valve.

[0019] 3. Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model provides an anti-clogging screw conveyor. By installing multiple discharge ports at the bottom of the auger body, the material can be diverted and discharged from multiple discharge ports, avoiding the blockage caused by viscous material accumulating at a single discharge port due to difficulty in discharge. In addition, by setting a baffle at the end, the material entering the end of the auger with inertia can be blocked, so that the material can fall smoothly into the discharge port, reducing the accumulation of material at the end of the auger body. (2) The present invention provides an anti-clogging screw conveyor. By setting a baffle at the head end of the screw conveyor body, the material can be blocked when the screw conveyor body is feeding, so that the material falls into the head end discharge port along the baffle or moves to other discharge ports with the screw blades, thereby reducing the accumulation of material at the head end of the screw conveyor body. (3) The present invention provides an anti-clogging screw conveyor with an inverted cone-shaped discharge port, which allows the material to be discharged smoothly through the gradually expanding opening, thereby reducing the frictional resistance between the material and the inner wall of the discharge port. (4) The present invention provides an anti-clogging screw conveyor, which can effectively control the opening and closing of the discharge port and the discharge speed by setting a slide valve, thereby achieving precise control of material discharge; (5) The present invention provides a non-clogging screw conveyor with a discharge port on one side of the end discharge port. With the help of the pneumatic blowing device at the end, a small amount of material accumulated at the end can be blown into the discharge port to avoid end blockage. The pneumatic blowing device is controlled by an electromagnetic valve and is used in conjunction with a quality detection sensor. It can blow the material only after it has accumulated to a certain extent, thus avoiding energy waste caused by continuous blowing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the screw conveyor of this utility model; In the diagram: 1. Screw auger body; 11. Central shaft; 12. Spiral blades; 2. Drive motor; 3. Discharge port; 4. Baffle; 5. Flange; 6. Discharge outlet. Detailed Implementation

[0021] Exemplary embodiments of the present invention are described in detail below. While these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to practice the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from its spirit and scope. The more detailed description of embodiments of the present invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and does not limit the description of the features and characteristics of the invention, in order to provide the best mode for carrying out the invention and sufficient to enable those skilled in the art to practice it. Therefore, the scope of the present invention is defined only by the appended claims.

[0022] Example 1 An anti-clogging screw conveyor is used for material conveying, especially viscous materials, and has a better anti-clogging effect. Its specific structure and technical effects are described in detail below.

[0023] like Figure 1 As shown, the screw conveyor includes an auger body 1, with a central shaft 11 inside the auger body 1. A spiral blade 12 is mounted in the middle of the central shaft 11, and a drive motor 5 is mounted at the end of the auger body 1 to drive the central shaft 11. The drive motor 5 is connected to the central shaft 11 through a coupling, causing the central shaft 11 to rotate and drive the spiral blade 12 to rotate, thus pushing the material inside the auger body 1 to move along the length of the central shaft 11.

[0024] The bottom of the auger body 1 has at least two discharge ports 3 along its conveying direction, that is, a discharge port 3 is provided at the bottom of both the beginning and end of the auger body 1. In this embodiment, three discharge ports 3 are provided, respectively located at the bottom of the beginning, middle, and end of the auger body 1. At the same time, a baffle 4 is installed at the beginning and end of the auger body 1, with the beginning baffle 4 located in front of the beginning discharge port 3 and the end baffle 4 located behind the end discharge port 3.

[0025] By installing multiple discharge ports 3 at the bottom of the auger body 1, the material can be diverted and discharged from multiple discharge ports 3, avoiding the blockage caused by viscous material accumulating at a single discharge port 3 due to difficulty in discharge. In addition, the baffle 4 can block the material entering the head and tail of the auger with inertia, allowing the material to fall smoothly into the discharge port 3, reducing the accumulation of material at the head and tail of the auger body.

[0026] In this embodiment, the baffle 4 adopts a circular structure with a certain tilt angle, so that the material can slide into the discharge port 3 along the tilt angle. At the same time, it can be used in conjunction with the subsequent pneumatic blowing device to blow the material into the discharge port 3 along the tilt angle.

[0027] The discharge port 3 adopts an inverted conical structure, allowing materials to flow smoothly through the gradually widening opening, reducing frictional resistance between the material and the inner wall of the discharge port. The bottom of the discharge port 3 is connected to downstream equipment via flange 5. The three discharge ports 3 are connected to different downstream devices, enabling three-line material conveying and improving conveying efficiency. Simultaneously, a slide gate valve is installed on flange 5, which effectively controls the opening and closing of the discharge ports and the discharge speed, achieving precise control over material discharge.

[0028] In addition, a discharge port 6 is provided at the bottom of the first and last ends of the auger body 1. The discharge port 6 at the first end is located in front of the first end baffle 4, and the discharge port 5 at the last end is located behind the last end baffle 4. A collection bag is provided below the discharge port 6 to collect materials. At the same time, pneumatic jetting devices are installed at both ends of the auger body 1 to blow the accumulated material at the ends to the discharge port 6. The pneumatic jetting devices are externally connected to solenoid valves. In this embodiment, a commonly available pulse jetting device can be used for the pneumatic jetting device. The jet nozzles are arranged around the circumference of the auger body 1 and have a certain inclined jetting angle, which can blow a small amount of material accumulated at the ends into the discharge port 6 to avoid blockage at the ends.

[0029] To avoid energy waste and potential equipment failure due to prolonged operation of the pneumatic jetting device, a quality detection sensor is installed at the end of the auger body 1. The quality detection sensor is electrically connected to the solenoid valve, which can trigger jetting only after the material has accumulated to a certain extent.

[0030] In summary, this embodiment of the anti-clogging screw conveyor improves the structure of the screw conveyor, effectively alleviating the problem of blockage at the end of the conveyor when conveying viscous materials, and ensuring the normal operation of the conveying work.

Claims

1. A clog-resistant screw conveyor, comprising an auger body (1), wherein a central shaft (11) is disposed inside the auger body (1), a helical blade (12) is mounted in the middle of the central shaft (11), and a drive motor (2) for driving the central shaft (11) is mounted at the end of the auger body (1), characterized in that: The bottom of the auger body (1) is provided with at least two discharge ports (3) along its material conveying direction, one of which is located at the end of the auger body (1); the end of the auger body (1) is also equipped with a baffle (4), which is located behind the end discharge port (3).

2. The anti-clogging screw conveyor according to claim 1, characterized in that: One of the feed ports (3) is located at the head of the auger body (1), and a baffle (4) is installed in front of the feed port (3).

3. The anti-clogging screw conveyor according to claim 1, characterized in that: The discharge port (3) has an inverted conical structure.

4. The anti-clogging screw conveyor according to claim 3, characterized in that: The discharge port (3) is connected to the downstream equipment via a flange (5).

5. The anti-clogging screw conveyor according to claim 4, characterized in that: A slide gate valve is installed on the flange (5).

6. The anti-clogging screw conveyor according to claim 1, characterized in that: The bottom end of the auger body (1) is provided with a discharge port (6), which is located behind the end baffle (4).

7. The anti-clogging screw conveyor according to claim 2, characterized in that: A discharge port (6) is provided at the bottom of the first end of the auger body (1) and in front of the first end baffle (4).

8. The anti-clogging screw conveyor according to claim 7, characterized in that: A collection bag is provided below the discharge port (6).

9. A clog-resistant screw conveyor according to claim 8, characterized in that: The end of the auger body (1) is equipped with a pneumatic jetting device to blow the accumulated material at the end to the discharge port (6); the pneumatic jetting device is connected to an external solenoid valve.

10. A clog-resistant screw conveyor according to claim 9, characterized in that: The end of the auger body (1) is equipped with a quality detection sensor, which is electrically connected to the solenoid valve.

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