Anti-blocking device for material conveying in power plant
Patent Information
- Application Number
- CN202522593124.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-07
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-12-07
AI Technical Summary
在输送粘接性较强的煤炭（目前，通过在煤炭中添加一些粘结性较强的红土，使其能够更好的进行无尘输送和全料燃烧）时，在料斗下料时会在其内部堆积大量的煤炭形成堆积性堵塞，导致煤炭难于下料而溢出，严重影响生产效率，导致设备因缺料而损坏
[0014]本实用新型所提供的一种发电厂物料输送的防堵塞装置同现有技术相比，具有以下优点：其一，在连接阀门输出端安装了一个由空气压缩机提供动力、脉冲控制仪提供电力的防堵塞装置，该装置在带式输送机输送煤炭但在其通道上发生堵塞时，能够容易的将其剔除，使得煤炭容易下料而不瘀滞溢出，不会导致设备因缺料而损坏；其二，由于所安装防堵塞装置由空气压缩机提供动力、脉冲控制仪和电磁式阀门构成，因此具有结构简单和使用方便的特点。
Smart Images
Figure CN224869293U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power plant equipment technology, specifically relating to an anti-blocking device for material conveying in power plants. Background Technology
[0002] In the power generation process, including conveying coal to the combustion boiler via belt conveyors, a significant amount of highly viscous coal accumulates in the hopper during discharge, causing blockages and preventing overflow. This severely impacts production efficiency and can lead to equipment damage due to material shortages. Traditionally, manual cleaning is used, which is inefficient and poses safety hazards. Utility Model Content
[0003] The purpose of this invention is to provide an anti-blocking device for power plant material conveying, characterized by rapid unblocking, prevention of stagnation, ensuring smooth coal feeding, and improving conveying efficiency.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] An anti-blocking device for material conveying in a power plant.
[0006] Includes a coal belt conveyor mechanism; characterized in that:
[0007] A hopper is provided at the raw coal bunker to cover the output end of the belt conveyor mechanism; the inlet of the hopper is the output port of the belt conveyor mechanism, and the output port of the hopper faces downwards to transport the raw coal to the raw coal bunker.
[0008] An air compressor is installed in the workshop. The air compressor divides the compressed gas into several branch pipelines. These branch pipelines are connected to the connecting flange on the lower side of the hopper through pipelines controlled by solenoid valves. The solenoid valves are controlled by a pulse controller in the control box through the pipelines.
[0009] Additional technical features constituting the above-mentioned anti-blocking device for material conveying in a power plant also include:
[0010] 1. A pressure gauge-controlled air storage tank is installed between the diversion valve and the air compressor;
[0011] 2. The solenoid valve is controlled by a pulse controller;
[0012] 3. An anti-clogging sensing mechanism is provided in the hopper, which can control the pulse controller.
[0013] 4. A plugging plate with several through holes is provided at the front end of the connecting flange.
[0014] Compared with the prior art, the anti-blocking device for material conveying in power plants provided by this utility model has the following advantages: First, an anti-blocking device powered by an air compressor and supplied with electricity by a pulse controller is installed at the output end of the connecting valve. When a belt conveyor is conveying coal but a blockage occurs in its channel, the device can easily remove the blockage, making it easy for the coal to be discharged without stagnation or overflow, and preventing equipment damage due to material shortage. Second, since the installed anti-blocking device is powered by an air compressor, supplied with electricity by a pulse controller, and supplied with an electromagnetic valve, it has the characteristics of simple structure and convenient use. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an anti-blocking device for material conveying in a power plant according to the present invention;
[0016] Figure 2 A schematic diagram of the connecting flange that forms part of the anti-clogging device for material conveying in a power plant. Detailed Implementation
[0017] The structure and working principle of the anti-blocking device for material conveying in power plants provided by this utility model will be further described in detail below with reference to the accompanying drawings.
[0018] like Figure 1 The diagram shows a schematic of the anti-blocking device for material conveying in a power plant provided by this utility model. Its structure includes: a belt conveyor 1 for conveying coal; a hopper 2 located at the raw coal bunker, capable of enclosing the output end 15 of the belt conveyor 1 with its output port 17 facing downwards; wherein the input port 16 of the hopper precisely encloses the output end 15 of the belt conveyor, and the output port 17 of the hopper faces downwards, conveying the material to the raw coal bunker; an air storage tank 4, driven by an air compressor 3 and controlled by a pressure gauge 13, is installed at the workshop; the air storage tank 4 divides its compressed gas into (at least) two diversion pipelines 14 via a diversion valve 6; these two diversion pipelines are respectively connected to flanges 9 fixed to the lower side of the hopper 2 via pipelines controlled by electromagnetic valves 7; the electromagnetic valves 7 are controlled by a pulse controller 11 in a control box 10 via control lines 71.
[0019] Its working principle is as follows: When the belt conveyor 1 conveys coal to the raw coal bunker, because the coal is mixed with red clay with strong adhesion, it is very easy to form a blockage on the vertical side wall of the feeding hopper when it flows downward. At this time, the air compressor 3 delivers high-pressure air to the diversion valve 6 through the air storage tank 4 controlled by the pressure gauge 13. The high-pressure air is blown out of the blockage on the side wall of the hopper by the air outlet of the connecting flange 9 through the diversion pipeline 14 and the electromagnetic valve 7 electrically controlled by the pulse controller 11 via the diversion valve 6 through the diversion pipeline 14. This achieves the purpose of quickly clearing the blockage, preventing stagnation, ensuring smooth material discharge, and improving conveying efficiency.
[0020] In the structure of the anti-blocking device for material conveying in the power plant, the diversion valve 6 can divert two or more flow lines 14 and is equipped with a corresponding number of electromagnetic valves 7, which are electrically controlled by the pulse controller 11. Gas is blown out to blockages at different locations on the side wall of the hopper through multiple connecting flanges 9 in the hopper 2. In addition, the pulse controller 11 can control two or more electromagnetic valves 7 to realize the amount, frequency and sequence of high-pressure gas blowing to achieve better blockage clearing.
[0021] In the structure of the anti-blocking device for material conveying in the power plant described above, a blockage sensor 8 is installed on the side wall of the easily blocked section of the hopper 2. The sensor's illumination lamp 81 detects the blockage status on the opposite panel 21 of the hopper and transmits the detection data back to the control box 10 via line 18. The control box 10 then controls the pulse controller 11. When there is no blockage 19, the light 81 of the blockage sensor 8 can penetrate the opposite panel 21 of the hopper, so the pulse controller 11 does not work. When a blockage occurs, the light 20 of the sensor will not penetrate the opposite panel 21 of the hopper, and the pulse controller 11 will work.
[0022] Additionally, when the connecting flange 9 is as follows Figure 2 The blockage plate 5 shown includes several through holes 12 at the front end of its connecting flange 9. When in operation, it can make the flow gas discharged from the diversion valve 6 more powerful and effectively dissipate the blockage 19 stuck on the opposite panel 21 of the hopper.
Claims
1. An anti-blocking device for material conveying in a power plant, Includes a coal belt conveyor mechanism; characterized in that: A hopper is provided at the raw coal bunker to cover the output end of the belt conveyor mechanism; the inlet of the hopper is the output port of the belt conveyor mechanism, and the output port of the hopper faces downwards to transport the raw coal to the raw coal bunker. An air compressor is installed in the workshop. The air compressor divides the compressed gas into several branch lines through a branch valve. These branch lines are connected to the connecting flange on the lower side of the hopper through lines controlled by solenoid valves. The solenoid valves are controlled by a pulse controller in the control box through control lines.
2. The anti-blocking device for material conveying in a power plant according to claim 1, characterized in that: A pressure gauge-controlled air tank is installed between the diversion valve and the air compressor.
3. The anti-blocking device for material conveying in a power plant according to claim 1, characterized in that: The solenoid valve is controlled by a pulse controller.
4. The anti-blocking device for material conveying in a power plant according to claim 1, characterized in that: An anti-clogging sensor is installed in the hopper, which can control the pulse controller.
5. The anti-blocking device for material conveying in a power plant according to claim 1, characterized in that: A plugging plate with several through holes is provided at the front end of the connecting flange.