Power plant coal conveying system coal drop pipe with anti-blocking function

Abstract

The utility model provides a power plant coal conveying system coal drop pipe with an anti-blocking function, and relates to the technical field of coal drop pipes, the power plant coal conveying system coal drop pipe comprises a coal drop pipe, an outer fixing frame and an inner lantern ring, an upper mounting table is arranged at the center of the upper part in the coal drop pipe, and the outer fixing frame is fixed at the upper part of the right side of the outer ring surface of the coal drop pipe; two right hanging brackets are fixed to the middle of the upper end face of the outer fixing frame, the other ends of the right hanging brackets are fixed to an upper mounting table, a conveying cavity is formed in the coal falling pipe, an inner lantern ring is arranged in the conveying cavity in a sleeved mode, the inner lantern ring is of a rotating structure, and a first rotating shaft is rotationally connected to the center of the upper mounting table. And the upper end of the first rotating shaft is mounted below the first motor. The inner lantern ring is conveniently and stably rotated, the inner scraper and the outer scraper are driven to scrape adhered sticky materials, coal in the conveying cavity is stirred through the inner stirring plate and the outer stirring plate, the coal is promoted to move downwards, material blocking is avoided, and material conveying is smoother and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coal dropping pipes, in particular to a coal dropping pipe of a coal conveying system of a power plant with an anti-blocking function. Background Art

[0002] Coal transportation systems are widely used in coal, ports, coal-fired power plants, coal dumping stations, coal washing plants, coal-fired industrial boilers and other industries. Coal drop pipes are a general term for pipelines that transport coal in coal transportation systems. Coal transported from one section of a coal conveyor belt falls through the coal drop pipe to another section of a coal conveyor belt or enters coal storage devices such as coal bunkers. Therefore, the coal drop pipe is an important channel connecting coal conveyor belts and other coal transportation operation lines.

[0003] In the specification of a coal drop pipe with anti-blocking function in the prior art (publication number CN218578864U), it is mentioned that "a second circular groove is provided on the upper surface of the circular ring, a gear ring is fixedly connected inside the second circular groove, a groove is provided on the upper side of the first circular groove, a motor is fixedly connected inside the groove, a gear is fixedly connected to the output end of the motor, the surface of the gear is meshed with the surface of the gear ring, a support rod is fixedly connected to the inner surface of the circular ring, the surface of the support rod is in contact with the inner surface of the outer shell and the coal drop pipe body, a slide groove is provided inside the support rod, and a cleaning device is provided inside the slide groove". However, the first and second circular grooves provided in the coal drop pipe in the prior art are easy for coal to enter, but not easy to clear out, and are easily stuck therein, which is not convenient and practical. Utility Model Content

[0004] In order to overcome the defects of the prior art, a coal drop pipe of a power plant coal transportation system with an anti-blocking function is provided to solve the problem that the first circular groove and the second circular groove arranged in the coal drop pipe in the prior art are easy for coal to enter, but difficult to clear out, easy to get stuck therein, and inconvenient and impractical.

[0005] To achieve the above-mentioned purpose, a coal drop pipe of a power plant coal transportation system with an anti-blocking function is provided, comprising a coal drop pipe, an external fixed frame and an inner sleeve ring, an upper mounting platform is arranged at the center of the upper inner portion of the coal drop pipe, and an external fixed frame is fixed to the upper right portion of the outer ring surface of the coal drop pipe, two groups of right hangers are fixed to the middle portion of the upper end surface of the external fixed frame, and the other end of the right hanger is fixed to the upper mounting platform, a conveying cavity is arranged in the coal drop pipe, and an inner sleeve ring is sleeved in the conveying cavity, and the inner sleeve ring is a rotating structure.

[0006] Furthermore, the center of the upper mounting platform is rotatably connected to a first rotating shaft, and the upper end of the first rotating shaft is mounted under the first motor. An upper fixing sleeve is disposed on the outer sleeve of the first motor, and both left and right ends of the upper fixing sleeve are fixed on the upper mounting platform.

[0007] Furthermore, upper connecting plates are provided on both the front and rear sides of the first rotating shaft, and a lower fixing plate is fixed to the other end of the upper connecting plate, and the other end of the lower fixing plate is fixed to the inner ring.

[0008] Furthermore, both the front and rear sides of the external fixing frame are provided with side arc plates, and the other end of the side arc plate is fixed with a side fixing block, and the other end of the side fixing block is fixed outside the coal drop pipe.

[0009] Furthermore, four groups of outer scrapers are arranged on the outer ring surface of the inner sleeve, and the outer ends of the outer scrapers are just in contact with the inner side wall of the coal drop pipe, and four groups of inner scrapers are arranged on the inner ring surface of the inner sleeve, and the inner ends of the inner scrapers are just in contact with the outer ring surface of the upper mounting platform.

[0010] Furthermore, a plurality of groups of outer shifting plates are arranged on the outer ring surface of the inner ring, and a plurality of groups of inner shifting plates are arranged on the inner ring surface of the inner ring, and the centers of the coal drop pipe and the inner ring are located on the same axis.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model drives the upper connecting plate and the lower fixing plate to rotate together by rotating the first rotating shaft through the first motor, thereby driving the inner sleeve ring to rotate together. The structure is firm and stable, and the rotation is stable and smooth.

[0013] 2. The setting of the external fixing frame in the utility model can use the right hanger on the upper part to fix the upper mounting platform, so that the upper mounting platform is located in the center of the coal drop pipe and is stable, which is convenient for the installation of the first motor and the first rotating shaft, and is safer and more reliable.

[0014] 3. In the utility model, the inner sleeve ring drives the outer scraper to scrape off the sticky material on the inner wall of the coal drop pipe while rotating, and drives the inner scraper to scrape off the sticky material on the outer ring surface of the upper mounting platform. At the same time, the outer and inner shifting plates are used to quickly shift the material transported in the conveying cavity, thereby promoting material movement and avoiding blockage, which is more convenient and saves trouble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0016] Figure 2 It is a top view schematic diagram of an embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the external fixator according to an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the inner ring structure of an embodiment of the utility model.

[0019] In the figure: 1. coal drop pipe; 10. conveying chamber; 11. upper mounting platform; 12. upper fixing sleeve; 13. first motor; 14. first rotating shaft; 15. upper connecting plate; 16. lower fixing plate; 2. outer fixing frame; 20. right hanger; 21. side arc plate; 22. side fixing block; 3. inner sleeve ring; 30. outer scraper; 31. inner scraper; 32. outer toggle plate; 33. inner toggle plate. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model is further described in detail in combination with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the utility model. The described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0021] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0022] Figure 1 It is a front view schematic diagram of an embodiment of the utility model, Figure 2 A schematic top view of an embodiment of the utility model, Figure 3 The schematic diagram of the external fixator structure of the utility model embodiment and Figure 4 This is a schematic diagram of the inner ring structure of an embodiment of the utility model.

[0023] Reference Figures 1 to 4 As shown, the utility model provides a coal drop pipe of a coal transportation system of a power plant with an anti-blocking function, comprising a coal drop pipe 1, an external fixing frame 2 and an inner sleeve ring 3, an upper mounting platform 11 is arranged at the center of the upper inner portion of the coal drop pipe 1, and the external fixing frame 2 is fixed to the upper right portion of the outer ring surface of the coal drop pipe 1, two groups of right hangers 20 are fixed to the middle portion of the upper end surface of the external fixing frame 2, and the other end of the right hanger 20 is fixed on the upper mounting platform 11, a conveying cavity 10 is arranged in the coal drop pipe 1, and the inner sleeve ring 3 is sleeved in the conveying cavity 10, and the inner sleeve ring 3 is a rotating structure.

[0024] In this embodiment, the center of the upper mounting platform 11 is rotatably connected to the first rotating shaft 14, and the upper end of the first rotating shaft 14 is installed under the first motor 13, the upper fixing sleeve 12 is disposed outside the first motor 13, and the left and right ends of the upper fixing sleeve 12 are fixed to the upper mounting platform 11; upper connecting plates 15 are provided on the front and rear sides of the first rotating shaft 14, and the other end of the upper connecting plate 15 is fixed to the lower fixing plate 16, and the other end of the lower fixing plate 16 is fixed to the inner ring 3.

[0025] As a preferred embodiment, the utility model rotates the first shaft 14 through the first motor 13 to drive the upper connecting plate 15 and the lower fixing plate 16 to rotate together, thereby driving the inner ring 3 to rotate together. The structure is firm and stable, and the rotation is stable and smooth.

[0026] In this embodiment, both front and rear sides of the external fixing frame 2 are provided with side arc plates 21 , and the other end of the side arc plates 21 is fixed with a side fixing block 22 , and the other end of the side fixing block 22 is fixed outside the coal drop pipe 1 .

[0027] As a preferred embodiment, the setting of the external fixing frame 2 in the utility model can utilize the right hanger 20 on the upper part to fix the upper mounting platform 11, so that the upper mounting platform 11 is located in the center of the coal drop pipe 1 and is stable, which is convenient for the installation of the first motor 13 and the first rotating shaft 14, and is safer and more reliable.

[0028] In this embodiment, four groups of outer scrapers 30 are arranged on the outer ring surface of the inner ring 3, and the outer ends of the outer scrapers 30 are just in contact with the inner side wall of the coal drop pipe 1, and four groups of inner scrapers 31 are arranged on the inner ring surface of the inner ring 3, and the inner ends of the inner scrapers 31 are just in contact with the outer ring surface of the upper mounting platform 11; multiple groups of outer toggle plates 32 are arranged on the outer ring surface of the inner ring 3, and multiple groups of inner toggle plates 33 are arranged on the inner ring surface of the inner ring 3, and the centers of the coal drop pipe 1 and the inner ring 3 are located on the same axis.

[0029] As a preferred embodiment, the inner sleeve ring 3 in the utility model drives the outer scraper 30 to scrape off the sticky material on the inner wall of the coal drop pipe 1 while rotating, and drives the inner scraper 31 to scrape off the sticky material on the outer ring surface of the upper mounting platform 11. At the same time, the outer shifting plate 32 and the inner shifting plate 33 are used to quickly shift the material transported in the conveying chamber 10, so as to promote the flow of materials and avoid blockage, which is more convenient and saves trouble.

[0030] The utility model can effectively solve the problem in the prior art that the first circular groove and the second circular groove provided in the coal drop pipe are easy for coal to enter but difficult to clear out and easy to get stuck therein, which is inconvenient and not practical. The utility model facilitates the stable rotation of the inner sleeve ring to drive the inner and outer scrapers to scrape off the adhered sticky materials, and then uses the inner and outer shifting plates to shift the coal in the conveying cavity, thereby promoting the downward movement of the coal, avoiding blockage, and making the conveying smoother and more convenient.

[0031] The above embodiments are used to explain the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the protection scope of the present invention.

Claims

1. A coal drop pipe of a power plant coal transportation system with anti-blocking function, characterized in that: The invention comprises a coal drop pipe (1), an external fixing frame (2) and an inner sleeve ring (3); an upper mounting platform (11) is arranged at the center of the upper inner part of the coal drop pipe (1); the external fixing frame (2) is fixed to the upper right part of the outer ring surface of the coal drop pipe (1); two groups of right hangers (20) are fixed to the middle part of the upper end surface of the external fixing frame (2); the other end of the right hanger (20) is fixed to the upper mounting platform (11); a conveying cavity (10) is arranged in the coal drop pipe (1); the conveying cavity (10) is sleeved with an inner sleeve ring (3); and the inner sleeve ring (3) is a rotating structure.

2. The coal drop pipe of a power plant coal transportation system with anti-blocking function according to claim 1, characterized in that: The center of the upper mounting platform (11) is rotatably connected to a first rotating shaft (14), and the upper end of the first rotating shaft (14) is mounted under the first motor (13). An upper fixing sleeve (12) is disposed outside the first motor (13), and both left and right ends of the upper fixing sleeve (12) are fixed to the upper mounting platform (11).

3. The coal drop pipe of a power plant coal transportation system with anti-blocking function according to claim 2, characterized in that: An upper connecting plate (15) is provided on both the front and rear sides of the first rotating shaft (14), and a lower fixing plate (16) is fixed to the other end of the upper connecting plate (15), and the other end of the lower fixing plate (16) is fixed to the inner sleeve ring (3).

4. The coal drop pipe of a power plant coal transportation system with anti-blocking function according to claim 1, characterized in that: Side arc plates (21) are provided on both the front and rear sides of the external fixing frame (2), and a side fixing block (22) is fixed to the other end of the side arc plate (21), and the other end of the side fixing block (22) is fixed outside the coal drop pipe (1).

5. The coal drop pipe of a power plant coal transportation system with anti-blocking function according to claim 1, characterized in that: Four groups of outer scrapers (30) are arranged on the outer ring surface of the inner sleeve (3), and the outer ends of the outer scrapers (30) are arranged to be in contact with the inner side wall of the coal drop pipe (1); and four groups of inner scrapers (31) are arranged on the inner ring surface of the inner sleeve (3), and the inner ends of the inner scrapers (31) are arranged to be in contact with the outer ring surface of the upper mounting platform (11).

6. The coal drop pipe of a power plant coal transportation system with anti-blocking function according to claim 1, characterized in that: A plurality of groups of outer shifting plates (32) are arranged on the outer ring surface of the inner ring (3), and a plurality of groups of inner shifting plates (33) are arranged on the inner ring surface of the inner ring (3), and the centers of the coal drop pipe (1) and the inner ring (3) are located on the same axis.

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