Powder sprayer capable of preventing caking inside

Abstract

The utility model belongs to the technical field of powder sprayers, and particularly relates to an internal anti-caking powder sprayer which comprises a stock bin and a screw rod, a conveying pipe is connected below the stock bin, a base is fixed below the conveying pipe, the screw rod is installed inside the conveying pipe through a bearing, a second motor connected with the screw rod through a coupler is installed on the outer side of the conveying pipe, and the second motor is connected with the screw rod through a bearing. A pneumatic valve is installed at the end, away from the second motor, of the conveying pipe, a nozzle is installed at the end, away from the conveying pipe, of the pneumatic valve, a transmission mechanism is installed in the middle of the stock bin, and a second fluted disc and a scraper blade are connected to the outer side of the transmission mechanism; a first rotating shaft is mounted in the middle of the bin through a bearing. When the spray nozzle works, the spray nozzle can be prevented from being blocked by caking of a desulfurizing agent, and the working efficiency of the spray nozzle is improved.

Description

Technical Field

[0001] This utility model belongs to the field of powder sprayer technology, specifically a powder sprayer with internal anti-caking mechanism. Background Technology

[0002] In-furnace denitrification is a technology for reducing nitrogen oxide emissions from furnaces, primarily used for treating exhaust gases from combustion equipment such as coal-fired, oil-fired, or gas-fired boilers. Nitrogen oxides are common pollutants in combustion processes, harmful to the environment and human health; therefore, reducing nitrogen oxide emissions is a crucial task in environmental protection. A powder injector is a device used to inject denitrification agents. It refines the denitrification agent into tiny particles and sprays them evenly into the furnace, causing them to chemically react with nitrogen oxides in the flue gas, thereby reducing nitrogen oxide emissions.

[0003] The powder sprayer is equipped with a hopper. If the desulfurizing agent is stored in the hopper for a long time, it is easy to become damp and clump together. This makes it inconvenient to discharge the powder when using the powder sprayer, and the clumped desulfurizing agent can also clog the nozzle, reducing the working efficiency of the powder sprayer. Summary of the Invention

[0004] The purpose of this invention is to provide a powder sprayer with internal anti-caking properties to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal anti-caking powder sprayer, comprising a hopper and a screw rod, wherein a conveying pipe is connected to the lower part of the hopper, a base is fixed to the lower part of the conveying pipe, the screw rod is installed inside the conveying pipe via bearings, a second motor connected to the screw rod via a coupling is installed on the outer side of the conveying pipe, a pneumatic valve is installed at the end of the conveying pipe away from the second motor, a nozzle is installed at the end of the pneumatic valve away from the conveying pipe, a transmission mechanism is installed in the middle of the hopper, a second gear plate and a scraper are connected to the outer side of the transmission mechanism, the transmission mechanism includes a first rotating shaft, a first gear plate and a first motor, and a first rotating shaft is installed in the middle of the hopper via bearings.

[0006] Preferably, a second gear disk is fixedly sleeved on the outer side of the first rotating shaft, and the first gear disk is meshed with one side of the second gear disk.

[0007] Preferably, the center of the first gear disc is connected to a first motor via a coupling, and the end of the first rotating shaft near the inside of the hopper is connected to a scraper.

[0008] Preferably, a disintegration mechanism is provided on the inner side of the first rotating shaft.

[0009] Preferably, the dispersing mechanism includes a No. 3 motor, a No. 2 rotating shaft, a No. 1 gear, a No. 2 gear, and a dispersing paddle, with the No. 2 rotating shaft mounted inside the No. 1 rotating shaft via bearings.

[0010] Preferably, a third motor is installed on the outer side of the first rotating shaft and connected to the second rotating shaft via a coupling, and a first gear is fixedly sleeved on the outer side of the second rotating shaft.

[0011] Preferably, a second gear is meshed with one side of the first gear, and a dispersing paddle is connected to one end of the second gear. The dispersing paddle is connected to the first rotating shaft through a bearing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model is equipped with a dispersing mechanism. Before the material is discharged from the hopper, the No. 3 motor is started, which drives the No. 2 rotating shaft to rotate, thereby driving the No. 1 gear to rotate, which in turn drives the No. 2 gear to rotate. The No. 2 gear drives the dispersing paddle to rotate, which disperses the clumps of desulfurizing agent. In addition, the No. 2 gear disk drives the No. 1 rotating shaft to rotate, which can drive the dispersing paddle to rotate around the No. 1 rotating shaft. By stirring the desulfurizing agent with the dispersing paddle, the desulfurizing agent can be dispersed, preventing the clumps of desulfurizing agent from clogging the nozzles, and improving the working efficiency of this utility model.

[0014] 2. This utility model is equipped with a transmission mechanism. When the No. 1 motor is started, the No. 1 gear disk rotates, which in turn drives the No. 2 gear disk to rotate, which in turn drives the No. 1 rotating shaft to rotate. The No. 1 rotating shaft drives the scraper to scrape the inner wall of the silo, which can scrape off the desulfurizing agent adhering to the inner wall of the silo, making it convenient to clean the inner wall of the silo and preventing the waste of desulfurizing agent, thereby improving the practicality of this utility model. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional sectional view of the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the first rotating shaft of this utility model;

[0018] Figure 4 This is a three-dimensional sectional view of the disintegration mechanism of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the transmission mechanism of this utility model.

[0020] In the diagram: 1. Hopper; 2. Conveying pipe; 3. Base; 4. Pneumatic valve; 5. Nozzle; 6. Transmission mechanism; 601. Rotating shaft No. 1; 602. Gear No. 1; 603. Motor No. 1; 7. Motor No. 2; 8. Scraper; 9. Dispersing mechanism; 901. Motor No. 3; 902. Rotating shaft No. 2; 903. Gear No. 1; 904. Gear No. 2; 905. Dispersing paddle; 10. Gear No. 2; 11. Screw. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 and Figure 5 This utility model provides a technical solution: an internal anti-caking powder sprayer, including a hopper 1 and a screw rod 11. A conveying pipe 2 is connected to the lower part of the hopper 1, and a base 3 is fixed to the lower part of the conveying pipe 2. The screw rod 11 is installed inside the conveying pipe 2 through a bearing. A second motor 7 connected to the screw rod 11 through a coupling is installed on the outer side of the conveying pipe 2. A pneumatic valve 4 is installed at the end of the conveying pipe 2 away from the second motor 7, and a nozzle 5 is installed at the end of the pneumatic valve 4 away from the conveying pipe 2.

[0023] Please see Figures 1-5 A transmission mechanism 6 is installed in the middle of the hopper 1. A second gear disc 10 and a scraper 8 are connected to the outside of the transmission mechanism 6. The transmission mechanism 6 includes a first rotating shaft 601, a first gear disc 602 and a first motor 603. The first rotating shaft 601 is installed in the middle of the hopper 1 through a bearing. The second gear disc 10 is fixedly sleeved on the outside of the first rotating shaft 601. The first gear disc 602 is meshed on one side of the second gear disc 10. The first motor 603 is connected to the middle of the first gear disc 602 through a coupling. The end of the first rotating shaft 601 near the inside of the hopper 1 is connected to the scraper 8. The scraper 8 is arranged in a cross shape.

[0024] In practice, the first motor 603 is started, which drives the first gear disk 602 to rotate, thereby driving the second gear disk 10 to rotate, which in turn drives the first rotating shaft 601 to rotate. The first rotating shaft 601 drives the scraper 8 to scrape the inner wall of the silo 1, which can scrape off the desulfurizing agent adhering to the inner wall of the silo 1, making it convenient to clean the inner wall of the silo 1 and preventing the waste of desulfurizing agent, thus improving the practicality of this utility model.

[0025] Please see Figures 2-5The inner side of the first rotating shaft 601 is provided with a dispersing mechanism 9, which includes a third motor 901, a second rotating shaft 902, a first gear 903, a second gear 904, and a dispersing paddle 905. The second rotating shaft 902 is installed inside the first rotating shaft 601 through bearings. The third motor 901 is installed on the outer side of the first rotating shaft 601 and connected to the second rotating shaft 902 through a coupling. The first gear 903 is fixedly sleeved on the outer side of the second rotating shaft 902. The second gear 904 is meshed on one side of the first gear 903. One end of the second gear 904 is connected to the dispersing paddle 905, and the dispersing paddle 905 is connected to the first rotating shaft 601 through bearings.

[0026] In specific implementation, before feeding material into silo 1, motor 3 901 is started, driving rotating shaft 2 902 to rotate, which in turn drives gear 1 903 to rotate, which in turn drives gear 2 904 to rotate. Gear 2 904 drives dispersing paddle 905 to rotate. Dispersing paddle 905 disperses the clumps of desulfurizing agent. When gear 2 10 drives rotating shaft 601 to rotate, it can drive dispersing paddle 905 to rotate around rotating shaft 601. The dispersing paddle 905 can disperse the desulfurizing agent by stirring, preventing the clumps of desulfurizing agent from clogging nozzle 5, and improving the working efficiency of this utility model.

[0027] Working principle: When using this utility model, before feeding material into the silo 1, the transmission mechanism 6 and the dispersing mechanism 9 are activated to disperse the desulfurizer in the silo 1 and scrape off the desulfurizer adhering to the inner wall of the silo 1. Then, the valve is opened to allow the desulfurizer to enter the conveying pipe 2. The second motor 7 works, driving the screw rod 11 to rotate and convey the desulfurizer to the pneumatic valve 4. The pneumatic valve 4 drives the nozzle 5 to spray the desulfurizer into the interior of the boiler. By setting the transmission mechanism 6 and the dispersing mechanism 9, the working efficiency and practicality of this utility model are improved. The contents not described in detail in this description belong to the prior art known to those skilled in the art.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A powder sprayer with internal anti-caking properties, comprising a hopper (1) and a screw rod (11), characterized in that: The hopper (1) is connected to a conveying pipe (2) below, and a base (3) is fixed below the conveying pipe (2). The screw rod (11) is installed inside the conveying pipe (2) through a bearing. A second motor (7) connected to the screw rod (11) through a coupling is installed on the outside of the conveying pipe (2). A pneumatic valve (4) is installed at the end of the conveying pipe (2) away from the second motor (7). A nozzle (5) is installed at the end of the pneumatic valve (4) away from the conveying pipe (2). A transmission mechanism (6) is installed in the middle of the hopper (1). A second gear disc (10) and a scraper (8) are connected to the outside of the transmission mechanism (6). The transmission mechanism (6) includes a first rotating shaft (601), a first gear disc (602), and a first motor (603). A first rotating shaft (601) is installed in the middle of the hopper (1) through a bearing.

2. The powder sprayer with internal anti-caking properties according to claim 1, characterized in that: A second gear disc (10) is fixedly sleeved on the outer side of the first rotating shaft (601), and a first gear disc (602) is engaged on one side of the second gear disc (10).

3. The powder sprayer with internal anti-caking properties according to claim 2, characterized in that: The first gear disc (602) is connected to a first motor (603) via a coupling in the middle, and the first rotating shaft (601) is connected to a scraper (8) at one end near the inside of the hopper (1).

4. The powder sprayer with internal anti-caking properties according to claim 3, characterized in that: The inner side of the first rotating shaft (601) is provided with a disintegration mechanism (9).

5. A powder sprayer with internal anti-caking properties according to claim 4, characterized in that: The dispersing mechanism (9) includes a No. 3 motor (901), a No. 2 rotating shaft (902), a No. 1 gear (903), a No. 2 gear (904), and a dispersing paddle (905). The No. 2 rotating shaft (902) is installed inside the No. 1 rotating shaft (601) through a bearing.

6. A powder sprayer with internal anti-caking properties according to claim 5, characterized in that: A third motor (901) is installed on the outer side of the first rotating shaft (601) and connected to the second rotating shaft (902) via a coupling. A first gear (903) is fixedly sleeved on the outer side of the second rotating shaft (902).

7. A powder sprayer with internal anti-caking properties according to claim 6, characterized in that: One side of the first gear (903) is meshed with a second gear (904), and one end of the second gear (904) is connected to a dispersing paddle (905), which is connected to the first rotating shaft (601) via a bearing.

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