Coal dredging device for preventing coal blockage in coal bunker

Abstract

The utility model discloses a coal dredging device for preventing coal blockage in a coal bunker. The coal dredging device comprises a coal dredging device sliding rod, a coal dredging device traction motor, a coal dredging device connecting rod, a coal dredging device driving motor, a coal dredging device pushing rod, a coal falling baffle and a baffle motor, the coal falling baffle is installed at the bottom of the coal bunker hopper. The baffle motor is used for opening or closing the coal falling baffle through the sliding rail. The coal dredging device sliding rod is installed at the bottom of a coal bunker hopper, the coal dredging device traction motor is installed on the coal dredging device sliding rod and can move left and right along the coal dredging device sliding rod, one end of the coal dredging device connecting rod is connected to the coal dredging device traction motor, the other end of the coal dredging device connecting rod is connected with the coal dredging device driving motor, and the coal dredging device pushing rod is connected to the output end of the coal dredging device driving motor. The coal dredging device can move up and down under driving of a coal dredging device driving motor. According to the utility model, manual operation can be reduced, and safety risks are reduced; and the equipment can be controlled, can be automatically opened and closed, and quits operation, so that the timeliness is greatly enhanced.

Description

Technical Field

[0001] The utility model relates to a coal diversion device, in particular to a coal diversion device for preventing coal from being blocked in a coal bunker. Background Art

[0002] At present, large coal bunkers, mainly including raw coal bunkers of coal-fired power plants and the emerging Euro bunkers, all have large coal storage capacity and can transport coal quickly when the unit needs coal. At present, hardware facilities such as activated coal feeders are generally installed at the bottom of the coal bunker to control the coal unloading operation of the coal bunker. The activated coal feeder can promote the orderly unloading of coal in the coal bunker through vibration, which is helpful for coal with high viscosity or after rain. However, there is still a situation where the coal volume is too large and the coal quality is high in viscosity, and the coal cannot be unloaded smoothly, causing the unit to be out of coal for a period of time. In serious cases, it may cause the unit to shut down, affecting the safety of power supply.

[0003] After the coal bunker is blocked by coal, if the activated coal feeder and other equipment cannot be smoothly lowered, the original operation is generally to knock the coal manually. This solution wastes precious coal unloading time, and the personnel do not have real-time access to tools and coal knocking operations; in addition, the coal knocking operation causes certain damage to the outer wall structure of the coal bunker and causes a lot of noise on site, which is not a very friendly emergency solution. Utility Model Content

[0004] The utility model aims to solve the problem of coal blocking in existing coal bunkers and provides a coal unblocking device for preventing coal blocking in coal bunkers.

[0005] The utility model is realized by the following technical solutions:

[0006] A coal dredging device for preventing coal from being blocked in a coal bunker, comprising a coal dredging device sliding rod, a coal dredging device traction motor, a coal dredging device connecting rod, a coal dredging device driving motor, a coal dredging device propulsion rod, a coal falling baffle and a baffle motor;

[0007] The coal drop damper is installed at the bottom of the coal bunker hopper, and the damper motor is used to open or close the coal drop damper through the slide rail;

[0008] The coal dredger slide rod is installed at the bottom of the coal bunker hopper, the coal dredger traction motor is installed on the coal dredger slide rod and can move left and right along the coal dredger slide rod, one end of the coal dredger connecting rod is connected to the coal dredger traction motor, and the other end is connected to the coal dredger drive motor, and the coal dredger propulsion rod is connected to the output end of the coal dredger drive motor and can move up and down under the drive of the coal dredger drive motor.

[0009] A further improvement of the utility model is that the coal dredging device sliding rod adopts a guide rail.

[0010] A further improvement of the utility model is that the sliding rod of the coal dredger adopts a sliding rail.

[0011] A further improvement of the utility model is that a belt is arranged below the coal bunker hopper.

[0012] A further improvement of the utility model is that an electronic scale is arranged below the belt to measure the real-time coal falling amount.

[0013] A further improvement of the utility model is that the coal dredging device propulsion rod is driven by electricity.

[0014] A further improvement of the utility model is that the coal dredging device propulsion rod is hydraulically driven.

[0015] A further improvement of the utility model is that the baffle motor adopts a stepping motor.

[0016] A further improvement of the utility model is that the traction motor of the coal dredger adopts a stepping motor.

[0017] A further improvement of the utility model is that the coal dredger driving motor adopts a stepping motor.

[0018] The utility model has at least the following beneficial technical effects:

[0019] The utility model provides a coal unloading device for preventing coal from being blocked in a coal bunker. The device can be used as a coal unloading means in a coal bunker. When existing means such as activated coal feeders fail to work, effective coal unloading and unloading operations can be performed. The utility model adopts a "pile driving" type of coal unloading, which is powered by external electric or hydraulic devices. Specifically, the coal unloading device traction motor moves left and right along the coal unloading device slide bar, and at the same time, the coal unloading device push rod can move up and down under the drive of the coal unloading device drive motor, so that the coal unloading device push rod can reach the bottom of the coal bunker hopper, realizing the "pile driving" type of coal unloading. Therefore, the utility model can reduce manual operation and reduce safety risks; and the equipment can be controlled, automatically opened and closed, and exited from operation, and the timeliness is greatly enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a static diagram of a coal discharge device for preventing coal blockage in a coal bunker according to the utility model.

[0021] Figure 2 This is an operating status diagram of a coal discharge device for preventing coal blockage in a coal bunker according to the utility model.

[0022] Description of reference numerals:

[0023] 1 is the coal dredger sliding rod, 2 is the coal dredger traction motor, 3 is the coal dredger connecting rod, 4 is the coal dredger driving motor, 5 is the coal dredger propulsion rod, 6 is the coal falling baffle, 7 is the coal bunker bottom stand, 8 is the activated coal feeder, 9 is the coal bunker hopper, and 10 is the belt. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Among them, the coal drop baffle 6 is installed at the bottom of the coal bunker hopper 9. When no coal drop command is received, it is in a closed state; after receiving the coal drop signal, the coal drop baffle 6 is opened along the slide rail by the baffle motor, and the coal bunker can drop coal. Generally, after the coal bunker hopper 9 drops coal, it goes to the bottom belt 10. There is an electronic scale under the belt 10 to measure the real-time coal drop amount. If the coal drops unsmoothly, that is, the coal drop amount is less than expected, the activated coal feeder 8 on the bottom stand 7 of the coal bunker will increase the vibration frequency to improve the coal drop efficiency of the coal bunker hopper 9.

[0026] like Figure 2 As shown, when the fuel cannot smoothly unload coal from the coal bunker hopper 9 due to various reasons, such as high coal viscosity or increased water content after rain, coal blockage still occurs under the maximum vibration of the activated coal feeder 8. At this time, the coal dredger receives a coal blocking signal, that is, it receives a coal unloading instruction, and the coal dropping baffle 6 has been opened, but the flow of the electronic scale is too small, then the coal dredger traction motor 2 is started, driving the coal dredger to slide on the coal dredger connecting rod 3 to a specified position, such as directly below the coal bunker hopper 9, and the coal dredger drive motor 4 drives the coal dredger propulsion rod 5 to perform a vertical propulsion action to bring out the blocked coal in the coal bunker hopper 9 for unblocking. Finally, after the flow of the electronic scale is normal, the coal dredger propulsion rod 5 is restored to its original position, that is, the lowest position, and the coal dredger traction motor 2 pulls the coal dredger to the initial position outside the coal bunker stand, and the coal dredger is operated to complete the coal dredging operation.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A coal diversion device for preventing coal blockage in a coal bunker, characterized in that: It comprises a coal dredging device sliding rod (1), a coal dredging device traction motor (2), a coal dredging device connecting rod (3), a coal dredging device driving motor (4), a coal dredging device pushing rod (5), a coal falling baffle (6) and a baffle motor; The coal drop baffle (6) is installed at the bottom of the coal bunker hopper (9), and the baffle motor is used to open or close the coal drop baffle (6) through a slide rail; The coal dredger slide bar (1) is installed at the bottom of the coal bunker hopper (9); the coal dredger traction motor (2) is installed on the coal dredger slide bar (1) and can move left and right along the coal dredger slide bar (1); one end of the coal dredger connecting rod (3) is connected to the coal dredger traction motor (2) and the other end is connected to the coal dredger drive motor (4); the coal dredger propulsion rod (5) is connected to the output end of the coal dredger drive motor (4) and can move up and down under the drive of the coal dredger drive motor (4).

2. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: The coal diverter slide bar (1) adopts a guide rail.

3. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: The coal diverter slide bar (1) adopts a slide rail.

4. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: A belt (10) is arranged below the coal bunker hopper (9).

5. A coal diversion device for preventing coal blockage in a coal bunker according to claim 4, characterized in that: An electronic scale is arranged below the belt (10) to measure the real-time amount of coal falling.

6. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: The coal dredging device propulsion rod (5) is electrically driven.

7. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: The coal dredge propulsion rod (5) is hydraulically driven.

8. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: The baffle motor adopts a stepper motor.

9. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: The coal dredger traction motor (2) adopts a stepping motor.

10. A coal diversion device for preventing coal blockage in a coal bunker according to claim 1, characterized in that: The coal diverter driving motor (4) adopts a stepping motor.

Images