Powder particle conveying device

Abstract

A powder particle conveying device effectively solves the problem that an existing conveying device is inconvenient to adjust. Comprising a funnel-shaped storage bin, an up-down axial rotatable adjusting plate is arranged at an outlet in the storage bin, a semicircular up-down through adjusting groove is formed in the front side of the adjusting plate, a fixing plate located below the adjusting plate is coaxially arranged in the storage bin, a semicircular up-down through flowing groove is formed in the rear side of the fixing plate, and the flowing groove can be communicated with the adjusting groove; a conveying pipe is coaxially arranged at the lower end of the storage bin, a blowing bin is arranged at the lower end of the conveying pipe, a blowing fan is arranged on the left side of the blowing bin, and a left-right axial feeding pipe is arranged at the right end of the blowing bin; the device is simple in structure, novel in conception, convenient to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of coal-fired boilers, in particular to a powder particle conveying device. Background Art

[0002] When the boiler operates with coal, the coal pulverizing system is responsible for grinding raw coal into pulverized coal with qualified fineness, and conveying it to the boiler for combustion through the pulverized coal pipeline. The pulverized coal after grinding falls into the transportation pipeline, and the air blower device in the pipeline blows the pulverized coal into the boiler for combustion. When in use, the regulating valve located in the air blowing channel can be adjusted to regulate the size of the pulverized coal air blowing. However, this conveying device has the following defects in use: the speed of the pulverized coal falling from the raw material bin into the transportation pipeline cannot be adjusted, so problems such as uneven distribution, large deviation of the powder amount in each branch pipe, and large deviation of the air-coal ratio are likely to occur. Furthermore, it causes insufficient mixing of air and powder in the later stage, unsatisfactory combustion conditions, slow load response, and high combustibles in the furnace. Content of the Utility Model

[0003] In view of the above situation, in order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a powder particle conveying device, which effectively solves the problem of inconvenient adjustment of the existing conveying device.

[0004] The technical solution it adopts is that the utility model includes a funnel-shaped storage bin. At the inner outlet of the storage bin, there is an axially-arranged and rotatable adjusting plate in the up-down direction. A semi-circular and vertically-through adjusting groove is opened on the front side of the adjusting plate. A fixed plate coaxial with the storage bin and located below the adjusting plate is provided inside the storage bin. A semi-circular and vertically-through flow groove is opened on the rear side of the fixed plate, and the flow groove can be communicated with the adjusting groove. The lower end of the storage bin is coaxially provided with a conveying pipe, and a blower bin is provided at the lower end of the conveying pipe. A blower fan is provided on the left side of the blower bin, and a feeding pipe in the left-right axial direction is provided at the right end of the blower bin.

[0005] Compared with the prior art, the beneficial effect of the utility model is that it can realize the conveying of pulverized coal, enable the pulverized coal to enter the boiler for combustion, and at the same time can adjust the area of communication between the flow groove and the adjusting groove, thereby regulating the falling speed of the pulverized coal in the storage bin, and can more accurately control the combustion rate, etc. Description of the Drawings

[0006] Figure 1 It is the main view axonometric drawing of the utility model.

[0007] Figure 2 It is the full-section main view axonometric drawing of the utility model.

[0008] Figure 3 It is the full-section top view axonometric drawing of the utility model.

[0009] Figure 4 It is the full-section top view axonometric drawing of the utility model.

[0010] Figure 5 It is an axonometric view of the adjusting plate and the fixing plate in the present utility model.

[0011] Figure 6 It is the Figure 3 enlarged view in the present utility model.

[0012] Reference numerals:

[0013] 1. Storage bin; 2. Adjusting plate; 3. Adjusting groove; 4. Fixing plate; 5. Flow groove; 6. Delivery pipe; 7. Blowing bin; 8. Blowing fan; 9. Feeding pipe; 10. Annular gear; 11. Connecting block; 12. Driving gear; 13. Rotating motor; 14. Relief groove; 15. Blowing motor. Detailed implementation manners

[0014] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific implementation manners of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the matrix implementation disclosed below.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0016] The following will further elaborate on the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0017] Given by Figures 1 to 6 , it includes a funnel-shaped storage bin 1. At the inner outlet of the storage bin 1, there is an axially up-and-down and rotatable adjusting plate 2. A semi-circular and axially up-and-down through adjusting groove 3 is provided on the front side of the adjusting plate 2. A fixing plate 4 coaxial with the storage bin 1 is provided below the adjusting plate 2. A semi-circular and axially up-and-down through flow groove 5 is provided on the rear side of the fixing plate 4. The flow groove 5 can communicate with the adjusting groove 3. A delivery pipe 6 is coaxially provided at the lower end of the storage bin 1. A blowing bin 7 is provided at the lower end of the delivery pipe 6. A blowing fan 8 is provided on the left side of the blowing bin 7. A left-and-right axially feeding pipe 9 is provided at the right end of the blowing bin 7.

[0018] To enable the adjusting plate 2 to rotate, the adjusting plate 2 is rotatably connected to the storage bin 1. An annular gear 10 is coaxially provided on the outer surface of the storage bin 1. The annular gear 10 is fixedly connected to the adjusting plate 2 via a connecting block 11. A driving gear 12 that meshes with the annular gear 10 and is rotatable is provided to the left of the storage bin 1.

[0019] To enable the driving gear 12 to rotate, a rotating motor 13 is provided on the storage bin 1 below the driving gear 12. The output shaft of the rotating motor 13 is coaxially and fixedly connected to the driving gear 12.

[0020] To facilitate the rotation of the connecting block 11, an arc-shaped relief groove 14 is formed on the storage bin 1, and the connecting block 11 is located within the relief groove 14.

[0021] To facilitate covering the materials, a cover plate is provided at the upper end of the storage bin 1.

[0022] To enable the blower fan 8 to rotate, a blower motor 15 is provided at the left end of the blower bin 7. The output shaft of the blower motor 15 is coaxially and fixedly connected to the blower fan 8.

[0023] When the present utility model is in use, first, the processed pulverized coal is piled up in the storage bin 1. At this time, the blower motor 15 is started, and the blower motor 15 drives the blower fan 8 to rotate. Then, the rotating motor 13 is started, and the rotating motor 13 drives the driving gear 12 to rotate. The driving gear 12 drives the annular gear 10 to rotate. The annular gear 10 drives the connecting block 11 to rotate counterclockwise within the relief groove 14, thereby driving the adjusting plate 2 to rotate counterclockwise. The adjusting plate 2 drives the adjusting groove 3 thereon to rotate counterclockwise. After the adjusting groove 3 rotates counterclockwise by a certain angle, it communicates with the flow groove 5. At this time, the rotating motor 13 is turned off. At this time, the pulverized coal in the storage bin 1 falls into the conveying pipe 6 from the communicating part of the flow groove 5 and the adjusting groove 3, and falls into the blower bin 7 through the conveying pipe 6. The pulverized coal that falls into the blower bin 7 is blown by the blower fan 8 into the feeding pipe 9 and enters the boiler for combustion;

[0024] When it is necessary to accelerate the falling rate of the pulverized coal, at this time, the rotating motor 13 is started again. The rotating motor 13 drives the adjusting plate 2 to rotate counterclockwise again via the driving gear 12 and the annular gear 10, thereby driving the adjusting groove 3 to rotate counterclockwise. The area of communication between the adjusting groove 3 and the flow groove 5 increases. Therefore, the falling speed of the pulverized coal in the storage bin 1 increases. When it is necessary to reduce the falling speed of the pulverized coal, at this time, the rotating motor 13 is reversed to reduce the area of communication between the flow groove 5 and the adjusting groove 3.

[0025] Compared with the prior art, the beneficial effects of the utility model are as follows: the provided adjusting plate, adjusting groove, fixing plate, etc. can realize the conveying of pulverized coal, enabling the pulverized coal to enter the boiler for combustion. At the same time, the area of the flow groove communicating with the adjusting groove can be adjusted, thereby regulating the falling speed of the pulverized coal in the storage bin, and more precisely controlling the combustion rate, etc. This structure is simple, novel in concept, convenient to use, and has strong practicability.

[0026] It should be noted that according to the needs of implementation, each component described in the embodiments of the present utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of the present utility model.

[0027] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.

Claims

1. A powder particle conveying device, comprising a funnel-shaped storage bin (1), characterized in that: An adjusting plate (2) is provided at the outlet of the storage bin (1) so as to be rotatable and axially arranged in an up-and-down direction. A semicircular adjusting groove (3) is provided on the front side of the adjusting plate (2). A fixing plate (4) is provided coaxially below the adjusting plate (2). A semicircular flow groove (5) is provided on the rear side of the fixing plate (4). The flow groove (5) can be connected to the adjusting groove (3). A conveying pipe (6) is provided coaxially at the lower end of the storage bin (1). A blast bin (7) is provided at the lower end of the conveying pipe (6). A blast fan (8) is provided on the left side of the blast bin (7). A feeding pipe (9) is provided on the right end of the blast bin (7).

2. A powder particle conveying device according to claim 1, characterized in that: The adjustment plate (2) is rotatably connected to the storage bin (1); a ring gear (10) is coaxially provided on the outer surface of the storage bin (1); the ring gear (10) is fixedly connected to the adjustment plate (2) via a connecting block (11); and a transmission gear (12) meshing with the ring gear (10) and rotatable is provided on the left side of the storage bin (1).

3. A powder particle conveying device according to claim 1, characterized in that: The storage bin (1) is provided with a rotating motor (13) located below the transmission gear (12), and the output shaft of the rotating motor (13) is coaxially fixedly connected to the transmission gear (12).

4. The powder particle conveying device according to claim 1, characterized in that: The storage bin (1) is provided with an arc-shaped clearance groove (14), and the connecting block (11) is located in the clearance groove (14).

5. The powder particle conveying device according to claim 1, characterized in that: The upper end of the storage bin (1) is provided with a cover plate.

6. The powder particle conveying device according to claim 1, characterized in that: A blower motor (15) is provided at the left end of the blower bin (7), and an output shaft of the blower motor (15) is coaxially fixedly connected to the blower fan (8).

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