Automatic cleaning system for preventing blockage in pneumatic conveying of raw lime for sintering

Abstract

The application provides a sintering quicklime pneumatic conveying anti-blocking automatic cleaning system, and relates to the technical field of metallurgical coking, which comprises a quicklime discharging machine, a feeding pipe, an oil-water separator and a cleaning device. The quicklime discharging machine is provided with a discharging pipe, the discharging pipe is connected with the feeding pipe, one end of the oil-water separator is connected with an air source pipe, the other end of the oil-water separator is provided with a gas supply pipe, the gas supply pipe is connected with the discharging pipe, and the cleaning device is used for cleaning the discharging pipe. When the sintering quicklime pneumatic conveying anti-blocking automatic cleaning system is used, compressed air is first sent into the oil-water separator, and water vapor in the compressed air is separated out from the oil-water separator, so that the cleanliness of the compressed air is ensured, the influence of water on the quicklime conveying is avoided, and the stability of the quicklime conveying is improved.

Description

Technical Field

[0001] This application relates to the field of metallurgical coking technology, and more specifically, to an automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage. Background Technology

[0002] To adjust the basicity of sinter, quicklime is added to the sintering batch. Quicklime reacts with water to release heat, which can increase the material temperature and facilitate sintering. Currently, sintering workshops generally use pneumatic conveying to transport quicklime. The power source for pneumatic conveying is compressed air. Compressed air has an inherently high moisture content, especially in spring and summer, which seriously affects the stability of quicklime transportation and also affects the stability and uniformity of sinter quality. Summary of the Invention

[0003] The purpose of this application is to provide an automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, which can solve the technical problem of low stability in quicklime conveying.

[0004] This application provides an automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, including a quicklime feeder, a feeding pipe, an oil-water separator, and a cleaning device. The quicklime feeder is equipped with a feeding pipe connected to the feeding pipe. One end of the oil-water separator is connected to an air source pipe, and the other end of the oil-water separator is equipped with an air supply pipe connected to the feeding pipe. The cleaning device is used to clean the feeding pipe.

[0005] Preferably, the cleaning device includes an air cannon and a purge pipe. One end of the air cannon is provided with a connecting pipe, which is connected to the air supply pipe. The other end of the air cannon is connected to the purge pipe, which is connected to the discharge pipe.

[0006] Preferably, the purging pipe includes a main pipe, a first branch pipe, and a second branch pipe. The main pipe is connected to the air cannon. The first branch pipe is located at the upper end of the discharge pipe, and the second branch pipe is located at the lower end of the discharge pipe. Both the first branch pipe and the second branch pipe are located on the main pipe.

[0007] Preferably, both the first branch pipe and the second branch pipe are arranged at an angle.

[0008] Preferably, the connection end between the unloading pipe and the feeding pipe is a bent pipe structure.

[0009] Preferably, a pressure gauge is installed on the gas supply pipe.

[0010] The beneficial effects of this utility model are:

[0011] The automatic cleaning system for pneumatic conveying of quicklime for sintering provided by this utility model first sends compressed air into an oil-water separator, which separates water vapor from the compressed air, thereby ensuring the cleanliness of the compressed air, avoiding the influence of moisture on the conveying of quicklime, and improving the stability of quicklime conveying. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

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

[0014] The reference numerals in the attached figures are as follows:

[0015] 1. Quicklime feeding machine; 2. Feeding pipe; 3. Oil-water separator; 4. Cleaning device; 5. Feeding pipe; 6. Quicklime silo; 7. Air source pipe; 8. Air supply pipe; 9. Air cannon; 10. Purge pipe; 11. Connecting pipe; 12. Main pipeline; 13. First branch pipe; 14. Second branch pipe; 15. Pressure gauge; 16. Drain pipe; 17. Solenoid valve. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] Example

[0023] like Figure 1 As shown in the embodiment of this application, an automatic cleaning system for pneumatic conveying of quicklime for sintering is provided, including a quicklime feeder 1, a feeding pipe 2, an oil-water separator 3, and a cleaning device 4. The quicklime feeder 1 is provided with a feeding pipe 5, which is connected to the feeding pipe 2. The bottom of the oil-water separator 3 is provided with a drain pipe 16, and a solenoid valve 17 is provided on the drain pipe 16. One end of the oil-water separator 3 is connected to an air source pipe 7, and the other end of the oil-water separator 3 is provided with an air supply pipe 8, which is connected to the feeding pipe 5. The cleaning device 4 is used to clean the feeding pipe 5.

[0024] In use, the air compressor sends compressed air into the air source pipe 7, and the compressed air enters the oil-water separator 3 through the air source pipe 7. The oil-water separator 3 separates the water vapor in the compressed air, and the clean compressed air enters the air supply pipe 8. The solenoid valve 17 is opened periodically, and the water separated by the oil-water separator 3 is discharged through the drain pipe 16. After the quicklime feeder 1 sends the quicklime from the quicklime silo 6 into the feed pipe 5, the compressed air from the air supply pipe 8 pneumatically conveys the quicklime. The cleaning device 4 is started periodically to clean the feed pipe 5 and improve the smoothness of the feed.

[0025] In this embodiment, the cleaning device 4 includes an air cannon 9 and a purge pipe 10. One end of the air cannon 9 is provided with a connecting pipe 11, which is connected to the air supply pipe 8. The other end of the air cannon 9 is connected to the purge pipe 10, which is connected to the discharge pipe 5.

[0026] When in use, turn on the air cannon 9 and use the instantaneous air pulse generated by the air cannon 9 to clean the feed pipe 5. Since the air source of the air cannon 9 is clean compressed air processed by the oil-water separator 3, it can reduce the possibility of quicklime sticking to the inner wall of the feed pipe 5 and improve the cleaning effect of the feed pipe 5.

[0027] In this embodiment, the purge pipe 10 includes a main pipe 12, a first branch pipe 13, and a second branch pipe 14. The main pipe 12 is connected to the air cannon 9. The first branch pipe 13 is located at the upper end of the discharge pipe 5, and the second branch pipe 14 is located at the lower end of the discharge pipe 5. Both the first branch pipe 13 and the second branch pipe 14 are located on the main pipe 12.

[0028] During use, a portion of the compressed air enters the interior of the first branch pipe 13 and is used to clean the feed pipe 5, while another portion of the compressed air enters the interior of the second branch pipe 14 and is used to blow quicklime into the interior of the feed pipe 2.

[0029] In this embodiment, both the first branch pipe 13 and the second branch pipe 14 are arranged at an angle. The angled arrangement of the first branch pipe 13 and the second branch pipe 14 can reduce airflow resistance and improve the cleaning effect on the feed pipe 5.

[0030] In this embodiment, the connection end between the feed pipe 5 and the feed pipe 2 is a bent pipe structure. The bent pipe structure helps to reduce airflow resistance and facilitates the feeding of quicklime into the feed pipe 2.

[0031] In this embodiment, a pressure gauge 15 is installed on the air supply pipe 8. The pressure gauge 15 is used to monitor the pressure inside the air supply pipe 8. Two cleaning modes can be used at this time, namely the timed cleaning mode and the pressure limit cleaning mode. The timed cleaning mode is used under normal conditions. When the pressure gauge 15 reading is abnormal, the cleaning device 4 works to clean the feed pipe 5.

[0032] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, characterized in that: The device includes a quicklime feeding machine, a feeding pipe, an oil-water separator, and a cleaning device. The quicklime feeding machine is equipped with a feeding pipe, which is connected to the feeding pipe. One end of the oil-water separator is connected to an air source pipe, and the other end of the oil-water separator is equipped with an air supply pipe, which is connected to the feeding pipe. The cleaning device is used to clean the feeding pipe.

2. The automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, as described in claim 1, is characterized in that: The cleaning device includes an air cannon and a blow pipe. One end of the air cannon is provided with a connecting pipe, which is connected to the air supply pipe. The other end of the air cannon is connected to the blow pipe, which is connected to the discharge pipe.

3. The automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, as described in claim 2, is characterized in that: The purging pipe includes a main pipe, a first branch pipe, and a second branch pipe. The main pipe is connected to the air cannon. The first branch pipe is located at the upper end of the discharge pipe, and the second branch pipe is located at the lower end of the discharge pipe. Both the first branch pipe and the second branch pipe are located on the main pipe.

4. The automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, as described in claim 3, is characterized in that: Both the first branch pipe and the second branch pipe are arranged at an angle.

5. The automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, as described in claim 4, is characterized in that: The connection end between the feed pipe and the discharge pipe is a bent pipe structure.

6. The automatic cleaning system for pneumatic conveying of quicklime for sintering to prevent blockage, as described in claim 1, is characterized in that: A pressure gauge is installed on the gas supply pipe.

Images