Coal ditch baffle device for unloading coal in power plant

Abstract

The utility model discloses a coal ditch baffle device for unloading coal in a power plant, which relates to the technical field of coal power generation and comprises a coal bearing platform and a triangular cement beam, the triangular cement beam is arranged above the coal bearing platform, and a herringbone frame is mounted on the triangular cement beam. A triangular cement beam is arranged on the coal bearing platform, a propeller strut is arranged on the coal bearing platform, the two ends of the propeller strut are fixedly connected with angle steel arranged on the two sides of the bottom of the triangular cement beam, the triangular cement beam is arranged above the coal bearing platform, and the propeller strut is installed on the triangular cement beam. When the coal trough baffle is closed, the pin shaft at the roller shaft end falls into the bottom of the slide way to form self-locking, the coal trough baffle is prevented from being pushed away by coal briquettes overflowing from a coal bunker to cause coal briquette leakage, the coal overflow problem of the coal bunker can be completely eradicated, dust raised due to coal overflow is reduced, the workshop environment is improved, and the device is flexible to open and close and suitable for being used in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of coal power generation, in particular to a coal ditch baffle device for unloading coal in a power plant. Background Art

[0002] Impeller coal feeder is a kind of high-efficiency feeding equipment used in thermal power plants and other industrial fields. Its main function is to move along the track in the gap-type coal ditch, and push the coal from one side of the coal ditch to the coal conveyor belt through the rotation of the impeller, so as to realize quantitative, uniform and continuous transportation of coal.

[0003] During the coal-taking process of the existing impeller coal feeder and when it moves to the maintenance position, there is serious coal spillage and high dust concentration at the coal unloading seams in the coal unloading ditch. The coal unloading seams in the coal unloading ditch are not equipped with sealing baffles, causing the coal flow to slip during the coal unloading process. At the same time, a large amount of dust jumps into the belt room, and the wind and dust seriously exceed the standard. There are major risks to equipment and personal safety. The equipment reliability is extremely poor, and the incoming coal unloading cannot be guaranteed, which directly affects the normal operation of the unit. Utility Model Content

[0004] The utility model aims to provide a coal ditch baffle device for coal unloading in a power plant, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A coal ditch baffle device for unloading coal in a power plant comprises a coal bearing platform and a triangular cement beam, wherein a triangular cement beam is arranged above the coal bearing platform, a herringbone frame is installed on the triangular cement beam, both ends of the herringbone frame are fixedly connected to angle steels arranged on both sides of the bottom of the triangular cement beam, a roller beam assembly is installed at the bottom of the angle steel, a self-locking plate is installed on the roller beam assembly, a coal ditch baffle is arranged at the bottom of the roller beam assembly, one end of the coal ditch baffle is hinged to the roller beam assembly, a coal ditch baffle roller is arranged between the coal ditch baffle and the self-locking plate, and both ends of the coal ditch baffle roller are respectively connected to the self-locking plate and the coal ditch baffle.

[0007] As a further solution of the utility model: the roller beam assembly includes a main rod, an auxiliary rod and a hinged plate, the auxiliary rods are installed at both ends of the main rod, the hinged plate is installed at the bottom of the auxiliary rod, and the hinged plate is hinged to the coal ditch baffle.

[0008] As a further solution of the utility model: the self-locking plate is installed at the bottom of the main rod, and a slideway is provided on the self-locking plate.

[0009] As a further solution of the utility model: the coal ditch baffle roller includes a roller body and a roller shaft, the roller shafts are installed at both ends of the roller body, the roller shaft at one end of the roller body is hinged to the coal ditch baffle, and a pin is installed on the roller shaft at the other end of the roller body, and the pin is adapted to the slideway.

[0010] As a further solution of the utility model: a lifting rod roller is arranged directly below the roller beam assembly.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model cooperates with the herringbone frame, angle steel, roller beam assembly, coal ditch baffle and coal ditch baffle rollers, so that when the coal ditch baffle is closed, the roller shaft end pin falls into the bottom of the slideway to form a self-locking, preventing the coal ditch baffle from being pushed open by the coal blocks overflowing from the coal bunker and causing coal block leakage. The utility model can eliminate the problem of coal bunker overflow, reduce dust raised by coal overflow, and improve the workshop environment.

[0013] 2. The utility model is flexible to open and close and is suitable for use in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic diagram of the overall structure of a coal ditch baffle device used for unloading coal in a power plant.

[0015] Figure 2 The present invention is a partial structural schematic diagram of a coal ditch baffle device used for coal unloading in a power plant.

[0016] Figure 3 A coal ditch baffle device for coal unloading in a power plant Figure 1 Schematic diagram of the structure of the medium coal ditch baffle roller.

[0017] 1. Coal bearing platform; 2. Triangular cement beam; 3. Herringbone; 4. Angle steel; 5. Roller beam assembly; 501. Main rod; 502. Auxiliary rod; 503. Hinge plate; 6. Coal ditch baffle; 7. Coal ditch baffle roller; 701. Roller body; 702. Roller shaft; 8. Self-locking plate; 9. Lifting rod roller; 10. Slide; 11. Pin shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1In the embodiment of the utility model, a coal ditch baffle device for coal unloading in a power plant includes a coal bearing platform 1 and a triangular cement beam 2. A triangular cement beam 2 is arranged above the coal bearing platform 1. The triangular cement beam 2 is an indispensable configuration for the coal ditch of the existing power plant coal unloading. The utility model can fix the roller beam assembly 5 on the existing triangular cement beam 2 by cooperating with the herringbone frame 3 and the angle steel 4. It is not necessary to drill holes on the existing automobile coal unloading ditch and fix it with bolts, so that the installation is more convenient. The herringbone frame 3 is installed on the triangular cement beam 2. The two ends of the herringbone frame 3 are connected with the angle steels arranged on both sides of the bottom of the triangular cement beam 2. 4 is fixedly connected, a roller beam assembly 5 is installed at the bottom of the angle steel 4, a self-locking plate 8 is installed on the roller beam assembly 5, a coal ditch baffle 6 is arranged at the bottom of the roller beam assembly 5, the coal ditch baffle 6 is made of Q345B material, 500mm in length and 400mm in width, the distance between the coal ditch baffle 6 and the highest point of the coal feeder is about 56mm when the coal ditch baffle 6 is lifted; when it falls, the distance between the bottom of the baffle and the coal bearing platform 1 is about 60mm, one end of the coal ditch baffle 6 is hinged to the roller beam assembly 5, a coal ditch baffle roller 7 is arranged between the coal ditch baffle 6 and the self-locking plate 8, and the two ends of the coal ditch baffle roller 7 are respectively connected to the self-locking plate 8 and the coal ditch baffle 6;

[0020] A lifting rod roller 9 is arranged directly below the roller beam assembly 5. The curtain and lifting rod in the impeller coal feeder are very important components. Their function is to control the conveying amount and direction of coal and ensure the smooth progress of the conveying process. The lifting rod roller 9 is made of a 60X6 diameter seamless steel pipe. The straight section length is 5000mm, and both ends are inclined downward by 20°. The length is about 800mm, the height difference is about 180mm, and the bottom of the straight section of the lifting rod is about 40mm away from the highest point of the coal feeder.

[0021] See also Figure 2 The roller beam assembly 5 includes a main rod 501, an auxiliary rod 502 and a hinged plate 503. Auxiliary rods 502 are installed at both ends of the main rod 501, and a hinged plate 503 is installed at the bottom of the auxiliary rod 502. The hinged plate 503 is hinged to the coal ditch baffle 6. The self-locking plate 8 is installed at the bottom of the main rod 501. A slide 10 is opened on the self-locking plate 8, and the slide 10 is arc-shaped.

[0022] See also Figure 3 The coal ditch baffle roller 7 includes a roller body 701 and a roller shaft 702. The roller shafts 702 are installed at both ends of the roller body 701. The roller shaft 702 at one end of the roller body 701 is hinged to the coal ditch baffle 6. A pin 11 is installed on the roller shaft 702 at the other end of the roller body 701. The pin 11 is matched with the slideway 10. Due to space limitations, this scheme adopts a multi-link roller hanging and traction method. The coal ditch baffle roller 7 is made of a 60X6 diameter seamless pipe. The coal ditch baffle roller 7 is 250mm long, the shaft diameter is 25mm, and the shaft length is 485mm. After the coal ditch baffle roller 7 is lifted, the bottom of the coal ditch baffle roller 7 is about 90mm away from the highest point of the coal feeder.

[0023] When the coal ditch baffle 6 needs to be closed, the coal ditch baffle roller 7 is pulled toward the side of the coal bearing platform 1, and the pin shaft 11 at the axial end of the coal ditch baffle roller 7 will slide forward along the slide 10 and finally fall into the bottom of the slide 10 to form a self-locking state. At this time, the coal ditch baffle 6 will be unfolded to block the coal unloading ditch coal unloading seam under the push of the coal ditch baffle roller 7. When not in use, the coal ditch baffle roller 7 is first lifted upward, and then pulled backward to make the pin shaft 11 at the axial end of the coal ditch baffle roller 7 slide backward along the slide 10 to fold the coal ditch baffle 6.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal ditch baffle device for coal unloading in a power plant, comprising a coal bearing platform (1) and a triangular cement beam (2), wherein a triangular cement beam (2) is arranged above the coal bearing platform (1), characterized in that: A herringbone frame (3) is installed on the triangular cement beam (2), and the two ends of the herringbone frame (3) are fixedly connected to angle steels (4) arranged on both sides of the bottom of the triangular cement beam (2). A roller beam assembly (5) is installed at the bottom of the angle steel (4), and a self-locking plate (8) is installed on the roller beam assembly (5). A coal ditch baffle (6) is arranged at the bottom of the roller beam assembly (5), and one end of the coal ditch baffle (6) is hinged to the roller beam assembly (5). A coal ditch baffle roller (7) is arranged between the coal ditch baffle (6) and the self-locking plate (8), and the two ends of the coal ditch baffle roller (7) are respectively connected to the self-locking plate (8) and the coal ditch baffle (6).

2. A coal ditch baffle device for coal unloading in a power plant according to claim 1, characterized in that: The roller beam assembly (5) comprises a main rod (501), an auxiliary rod (502) and a hinged plate (503); the auxiliary rods (502) are installed at both ends of the main rod (501); the hinged plate (503) is installed at the bottom of the auxiliary rod (502); and the hinged plate (503) is hinged to the coal ditch baffle (6).

3. A coal ditch baffle device for coal unloading in a power plant according to claim 1, characterized in that: The self-locking plate (8) is installed at the bottom of the main rod (501), and a slideway (10) is provided on the self-locking plate (8).

4. A coal ditch baffle device for coal unloading in a power plant according to claim 1, characterized in that: The coal ditch baffle roller (7) comprises a roller body (701) and a roller shaft (702), wherein the roller shafts (702) are installed at both ends of the roller body (701), the roller shaft (702) at one end of the roller body (701) is hinged to the coal ditch baffle (6), and a pin shaft (11) is installed on the roller shaft (702) at the other end of the roller body (701), and the pin shaft (11) is adapted to the slideway (10).

5. A coal ditch baffle device for coal unloading in a power plant according to claim 1, characterized in that: A rod lifting roller (9) is arranged directly below the roller beam assembly (5).

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