Anti-blocking device for powdery material conveying pipeline

Abstract

The utility model discloses a powdery material conveying pipeline anti-blocking device which comprises a conveying box, a feeding pipe is arranged at the bottom of the conveying box, a first control valve is arranged on the feeding pipe, a screen is arranged in an inner cavity of the conveying box, a discharging pipe is arranged at the top of the conveying box, and the discharging pipe is communicated with an external storage bin. The utility model relates to the technical field of cement powder conveying, in particular to an anti-blocking device for a powdery material conveying pipeline, powder enters a conveying box through a feeding pipe in a high-pressure environment, blocky materials or impurities in the powder are intercepted through a screen in the box, and the powder can penetrate through the screen and is discharged through a discharging pipe at the top of the box. In order to prevent the impurities from blocking the screen, the cleaning brush can be started regularly or irregularly to clean the screen, and the impurities are swept down to the waste discharge port to be discharged.

Description

Technical Field

[0001] This utility model relates to the field of cement powder conveying technology, specifically to an anti-clogging device for powder material conveying pipelines. Background Technology

[0002] Currently, the cement industry uses various dry powdery materials, such as fly ash and mineral powder, as raw materials to facilitate comprehensive resource utilization. These materials are industrial solid wastes, characterized by their susceptibility to impurities during drying, production, and storage. When conveying these materials to storage silos using high-pressure pneumatic conveying, the dry powdery materials require sealed pipelines. If the material contains lumpy materials or impurities, it can easily lead to pipeline blockage, affecting both conveying speed and environmental impact. Therefore, it is necessary to address the blockage problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-clogging device for powdered material conveying pipelines, which solves the problem of easy blockage during the conveying of existing cement powder raw materials.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for preventing blockage in a powder material conveying pipeline, comprising a conveying box, an inlet pipe at the bottom of the conveying box, a first control valve on the inlet pipe, a screen in the inner cavity of the conveying box, and an outlet pipe at the top of the conveying box, the outlet pipe being connected to an external storage bin.

[0007] The inner cavity of the conveyor box is equipped with a rotatable cleaning brush, the bristles of which can contact the screen.

[0008] Waste discharge ports are provided on both sides of the bottom of the conveyor box, and a second control valve is installed on the waste discharge port.

[0009] The side of the conveyor box is equipped with an inspection port.

[0010] As a further preferred embodiment, the bottom of the cleaning brush is provided with a shielding ring, the cleaning brush is driven by an external servo motor, and the rotation stroke of the cleaning brush is from one end of the screen to the other.

[0011] As a further preferred embodiment, the bottom of the inner wall of the conveyor box is provided with arc-shaped steps on both the left and right sides, and the waste discharge port is located at the lowest point of the arc-shaped steps.

[0012] As a further preferred embodiment, a sampling tube is installed on the top of the conveying box, and a third control valve and a fourth control valve are respectively installed on the sampling tube, and a collection box is installed at the outlet of the sampling tube.

[0013] (III) Beneficial Effects

[0014] This utility model provides an anti-clogging device for powder material conveying pipelines. It has the following beneficial effects:

[0015] This anti-clogging device for powdered material conveying pipelines allows powder to enter the conveying box through the feed pipe under high pressure. The powder passes through a screen inside the box to intercept lumpy materials or impurities. The powder can then pass through the screen and be discharged through the discharge pipe at the top of the box, eventually entering the storage silo. To prevent impurities from clogging the screen, a cleaning brush can be activated periodically or irregularly to clean the screen, and the impurities are swept off and discharged through the waste outlet. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model.

[0018] In the diagram: 1. Conveyor box; 2. Feed pipe; 3. First control valve; 4. Screen; 5. Discharge pipe; 6. Cleaning brush; 7. Shielding ring; 8. Waste discharge port; 9. Second control valve; 10. Sampling pipe; 11. Third control valve; 12. Fourth control valve; 13. Collection box; 14. Inspection port; 15. Curved step. Detailed Implementation

[0019] 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.

[0020] like Figure 1-2 As shown, this utility model provides a technical solution: a powder material conveying pipeline anti-clogging device, including a conveying box 1, a feed pipe 2 at the bottom of the conveying box 1, a first control valve 3 on the feed pipe 2, a screen 4 (diameter: 5*5mm) in the inner cavity of the conveying box 1, the screen 4 can be designed as an arc or semi-circular structure, and a discharge pipe 5 at the top of the conveying box 1, the discharge pipe 5 being connected to an external storage bin.

[0021] The inner cavity of the conveyor box 1 is equipped with a rotatable cleaning brush 6. The center of the cleaning brush 6 coincides with the center of the screen 4. The cleaning brush 6 is pre-set so that its rotation range can only move back and forth from one side of the screen 4 to the other side and will not leave the screen 4. The bristles of the cleaning brush 6 can contact the screen 4. A shielding ring 7 is provided at the bottom of the cleaning brush 6. The purpose of setting the shielding ring 7 is to prevent high-pressure gas from affecting the rotation of the cleaning brush 6 from the center position. For a small amount of impurities that fall into the shielding ring 7, they can be cleaned regularly by opening the inspection port 14. The cleaning brush 6 is driven by an external servo motor, and the rotation stroke of the cleaning brush 6 is from one end of the screen 4 to the other end.

[0022] Waste discharge ports 8 are provided on both sides of the bottom of the conveying box 1. A second control valve 9 is provided on the waste discharge port 8. Arc-shaped steps 15 are provided on the left and right sides of the bottom of the inner wall of the conveying box 1. The waste discharge port 8 is located at the lowest point of the arc-shaped steps 15. The arc-shaped steps 15 facilitate the discharge of impurities.

[0023] A sampling tube 10 is installed on the top of the conveying box 1. A third control valve 11 and a fourth control valve 12 are respectively installed on the sampling tube 10. A collection box 13 is installed at the outlet of the sampling tube 10. The conveyed powder is sampled periodically. First, the third control valve 11 is opened, and the powder passes through the third control valve 11 to the front end of the fourth control valve 12. Then, the third control valve 11 is closed and the fourth control valve 12 is opened. At this time, the gas impact force can be reduced to prevent dust from being sprayed due to high-pressure gas. The material will fall into the collection box 13.

[0024] The side of the conveyor box 1 is provided with an inspection port 14, through which the device can be inspected and maintained in daily life.

[0025] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0026] In use, the conveying pipe of the powder material transport vehicle is connected to the inlet of the feed pipe 2 of the device. The powder is transported into the conveying box 1 by the high-pressure gas on the vehicle. The powder can pass through the screen 4 and be discharged through the discharge pipe 5, and finally sent to the storage bin.

[0027] When lumpy materials or impurities in the powder pass through the screen 4, they are intercepted. The cleaning brush 6 is driven by an external servo motor to rotate, thereby cleaning the impurities that may be adsorbed on the surface of the screen 4, preventing the screen 4 from clogging. The cleaned impurities fall into the waste discharge port 8 below and are discharged.

[0028] In summary, this anti-clogging device for powdered material conveying pipeline allows powder to enter the conveying box through the feed pipe under high pressure. The powder passes through the screen inside the box to intercept lumpy materials or impurities. The powder can then pass through the screen and be discharged through the discharge pipe at the top of the box, eventually entering the storage bin. To prevent impurities from clogging the screen, a cleaning brush can be activated periodically or irregularly to clean the screen, and the impurities are swept off and discharged through the waste outlet.

[0029] It should be noted that all electrical components mentioned in this article are electrically connected to an external main controller and 220V or 380V AC mains power. The main controller can be a conventional, known device such as a computer, and its control principles, internal structure, and control switching methods are all conventional methods of existing technology. These are directly cited here without further elaboration. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing blockage in a powder material conveying pipeline, characterized in that: Includes a conveyor box (1), the bottom of which is provided with a feed pipe (2), a first control valve (3) is provided on the feed pipe (2), the inner cavity of the conveyor box (1) is provided with a screen (4), the top of the conveyor box (1) is provided with a discharge pipe (5), and the discharge pipe (5) is connected to an external storage bin. The inner cavity of the conveyor box (1) is equipped with a rotatable cleaning brush (6), and the bristles of the cleaning brush (6) can contact the screen (4). Waste discharge ports (8) are provided on both sides of the bottom of the conveyor box (1), and a second control valve (9) is provided on the waste discharge port (8); The side of the conveyor box (1) is provided with an inspection port (14).

2. The anti-clogging device for a powder material conveying pipeline according to claim 1, characterized in that: The bottom of the cleaning brush (6) is provided with a shielding ring (7). The cleaning brush (6) is driven by an external servo motor. The rotation stroke of the cleaning brush (6) is from one end of the screen (4) to the other end.

3. The anti-clogging device for a powder material conveying pipeline according to claim 1, characterized in that: The inner wall of the conveyor box (1) is provided with arc-shaped steps (15) on the left and right sides, and the waste discharge port (8) is located at the lowest point of the arc-shaped steps (15).

4. The anti-clogging device for a powder material conveying pipeline according to claim 1, characterized in that: A sampling tube (10) is installed on the top of the conveying box (1). A third control valve (11) and a fourth control valve (12) are respectively installed on the sampling tube (10). A collection box (13) is installed at the outlet of the sampling tube (10).

Images