Low-load furnace shutdown control device

Abstract

The utility model provides a low-load furnace shutdown control device, and relates to the field of control devices.The low-load furnace shutdown control device comprises a first-stage conveying assembly, a second-stage conveying assembly, a plurality of center coal feeders, a controller and a plurality of coal conveying belts. During use, the corresponding center coal feeder is started according to requirements, then coal is conveyed to the first-stage conveying assembly or the second-stage conveying assembly through the coal conveying belt, and finally the coal is conveyed into a boiler through the first-stage conveying assembly or the second-stage conveying assembly to be combusted. According to the utility model, the variety and the particle size of coal can be directly controlled through the controller, the combustion temperature can be conveniently controlled in the later period, and when one of the first-stage transportation assembly and the second-stage transportation assembly is transported, the other one is overhauled.

Description

Technical Field

[0001] This application relates to the field of control devices, and more particularly, to a low-load boiler shutdown control device. Background Art

[0002] During the combustion process of a boiler, coal needs to be continuously fed. Existing transportation equipment generally transports coal into the boiler manually. During the transportation process, it is necessary to manually adjust the amount of coal and the variety of coal. Adjusting the amount and quality of coal is time-consuming and laborious, and not convenient to use. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a low-load boiler shutdown control device, which can solve the above technical problems.

[0004] The embodiments of this application provide a low-load boiler shutdown control device, including a primary transportation component, a secondary transportation component, a plurality of central coal feeders, a controller, and a plurality of coal conveyor belts. The number of the central coal feeders is the same as the number of the coal conveyor belts. The coal conveyor belts are installed below the central coal feeders. The primary transportation component and the secondary transportation component are respectively docked with the coal conveyor belts. The controller is respectively used to control the opening and closing of the central coal feeders, the operation and shutdown of the coal conveyor belts, the operation and shutdown of the primary transportation component, and the operation and shutdown of the secondary transportation component.

[0005] Preferably, a feed hopper is provided between the central coal feeder and the coal conveyor belt.

[0006] Preferably, the lower end of the central coal feeder is arranged in a contraction type.

[0007] Preferably, both the primary transportation component and the secondary transportation component include a plurality of scraper coal feeders, and the plurality of scraper coal feeders are installed end to end.

[0008] Preferably, the primary transportation component, the secondary transportation component, the central coal feeder, and the coal conveyor belt all include a motor and a solenoid valve, and the controller controls the motor through the solenoid valve.

[0009] Preferably, the low-load boiler shutdown control device further includes a plurality of fans, and the fans are electrically connected to the controller.

[0010] Preferably, the controller is a PLC controller.

[0011] Advantages of the Utility Model

[0012] A low-load furnace shutdown control device provided by the present utility model includes a primary transportation component, a secondary transportation component, a plurality of central coal feeders, a controller, and a plurality of coal conveyor belts. The number of the central coal feeders is the same as that of the coal conveyor belts. The coal conveyor belts are installed below the central coal feeders. The primary transportation component and the secondary transportation component are respectively docked with the coal conveyor belts. The controller is respectively used to control the opening and closing of the central coal feeders, the operation and closing of the coal conveyor belts, the operation and closing of the primary transportation component, and the operation and closing of the secondary transportation component. The central coal feeders of the present utility model can hold coals of different qualities and different particle sizes. During use, the corresponding central coal feeder is opened according to requirements, and then the coal is respectively transported to the primary transportation component or the secondary transportation component through the coal conveyor belts, and finally fed into the boiler through the primary transportation component or the secondary transportation component for combustion. The present utility model can directly control the variety and particle size of the coal through the controller, which is convenient for controlling the combustion temperature in the later stage, and when one of the primary transportation component or the secondary transportation component is transporting, the other one can be overhauled. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic structural framework diagram of the present utility model.

[0015] The reference numerals are respectively:

[0016] 1. Primary transportation component; 2. Secondary transportation component; 3. Coal feeder; 4. Controller; 5. Coal conveyor belt; 6. Hopper; 7. Scraper coal feeder; 8. Motor; 9. Solenoid valve; 10. Fan. Detailed Embodiments

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0019] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0020] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is customarily placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0021] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the component is required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0022] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] Such as Figure 1As shown in the figure, a low-load furnace shutdown control device includes a primary transportation component 1, a secondary transportation component 2, multiple central coal feeders 3, a controller 4, and multiple coal conveyor belts 5. The number of the central coal feeders 3 is the same as that of the coal conveyor belts 5. The coal conveyor belts 5 are installed below the central coal feeders 3. The primary transportation component 1 and the secondary transportation component 2 are respectively docked with the coal conveyor belts 5. The controller 4 is respectively used to control the opening and closing of the central coal feeders 3, the operation and closing of the coal conveyor belts 5, the operation and closing of the primary transportation component 1, and the operation and closing of the secondary transportation component 2. The central coal feeders 3 of the present utility model can hold coals of different qualities and different particle sizes. During use, the corresponding central coal feeder 3 is opened according to requirements, and then the coal is respectively transported to the primary transportation component 1 or the secondary transportation component 2 through the coal conveyor belts 5, and finally fed into the boiler through the primary transportation component 1 or the secondary transportation component 2 for combustion. The present utility model can directly control the variety and particle size of the coal through the controller 4, which is convenient for controlling the combustion temperature in the later stage, and when one of the primary transportation component 1 or the secondary transportation component 2 is transporting, the other can be overhauled.

[0024] As Figure 1 shown, in this embodiment, in order to prevent dust from overflowing during the feeding process of the central coal feeder 3, a feed hopper 6 is arranged between the central coal feeder 3 and the coal conveyor belt 5.

[0025] As Figure 1 shown, in this embodiment, in order to facilitate the rapid feeding of the coal feeder 3, the lower end of the central coal feeder 3 is arranged in a contracted manner.

[0026] As Figure 1 shown, in this embodiment, both the primary transportation component 1 and the secondary transportation component 2 include multiple scraper coal feeders 73. The multiple scraper coal feeders 73 are installed end to end. Specifically, the appropriate number of scraper coal feeders 73 can be selected according to requirements, and the scraper coal feeder 73 at the tail end is connected to the boiler.

[0027] As Figure 1 shown, in this embodiment, the primary transportation component 1, the secondary transportation component 2, the central coal feeder 3, and the coal conveyor belt 5 all include a motor 8 and a solenoid valve 9. The controller 4 controls the motor 8 through the solenoid valve 9.

[0028] As Figure 1 shown, in this embodiment, the low-load furnace shutdown control device further includes multiple fans 10, and the fans 10 are electrically connected to the controller 4.

[0029] In this embodiment, the controller 4 is a PLC controller 4.

[0030] Specifically, the utility model directly controls the operation and shutdown of the primary transportation component 1, the secondary transportation component 2, the central coal feeder 3, and the coal conveyor belt 5 through the solenoid valve 9, and the blower 10 is turned on during the operation of the primary transportation component 1 or the secondary transportation component 2, otherwise, it is turned off.

[0031] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A low-load boiler shutdown control device, characterized in that: It includes a primary transportation component, a secondary transportation component, multiple central coal feeders, a controller, and multiple coal conveyor belts. The number of the central coal feeders is the same as that of the coal conveyor belts. The coal conveyor belts are installed below the central coal feeders. The primary transportation component and the secondary transportation component are respectively docked with the coal conveyor belts. The controller is respectively used to control the opening and closing of the central coal feeders, the operation and closing of the coal conveyor belts, the operation and closing of the primary transportation component, and the operation and closing of the secondary transportation component.

2. The low-load furnace shutdown control device according to claim 1, wherein: A hopper is arranged between the central coal feeder and the coal conveyor belt.

3. The low-load furnace shutdown control device according to claim 1, characterized in that: The lower end of the central coal feeder is arranged in a contracted manner.

4. A low-load furnace shutdown control device according to claim 1, characterized in that: Both the primary transportation component and the secondary transportation component include multiple scraper coal feeders, and the multiple scraper coal feeders are installed end to end.

5. The low-load furnace shutdown control device according to claim 1, characterized in that: The primary transportation component, the secondary transportation component, the central coal feeder, and the coal conveyor belt all include a motor and a solenoid valve, and the controller controls the motor through the solenoid valve.

6. The low-load furnace shutdown control device according to claim 1, wherein: The low-load furnace shutdown control device further includes multiple blowers, and the blowers are electrically connected to the controller.

7. A low-load furnace shutdown control device according to claim 1, characterized in that: The controller is a PLC controller.

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