Reciprocating Shaking Plates for Coal Pipe Blockage Prevention

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Solution Overview

Problem

Coal-fired power plants face frequent blockages in coal dropping pipes due to excessive coal or debris, and moist, viscous coal causing sticking issues, necessitating a faster and more stable solution than manual or air cannon methods.

Innovation Solution

A dredging device with a carrying frame, shaking and stirring units, and a driving unit that reciprocates shaking plates and rotates a stirring rod to break up coal, preventing sticking and ensuring smooth coal flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual beating or air cannon methods are used to clear blocked coal pipes, then the pipe can be opened, but the process is inconvenient and inefficient

Engineering Contradiction:
Improvecoal pipe clearing efficiencyVSAvoidoperation convenience
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The coal dropping pipe is equipped with a shaking mechanism that enables self-cleaning functionality. The pipe can automatically shake and clear blocked coal without requiring manual intervention or external air cannon systems, making the system serve itself and eliminating the need for inconvenient manual clearing operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The coal dropping pipe transitions from a static structure to a dynamic one with shaking capability. The pipe can oscillate or vibrate to prevent coal adhesion and facilitate self-clearing of blockages, improving both efficiency and operational convenience through dynamic motion.

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If coal is poured into the coal hopper, then the coal supply is maintained, but the coal pipe becomes blocked due to excessive coal or debris

Engineering Contradiction:
Improvecoal supply quantityVSAvoidcoal pipe flow stability
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The coal dropping pipe incorporates a shaking mechanism that dynamically prevents coal accumulation and blockages. By introducing oscillatory motion, the system maintains reliable coal flow stability even when large quantities of coal are supplied, preventing the pipe from clogging despite high material throughput.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The shaking mechanism generates mechanical vibrations in the coal dropping pipe that prevent coal particles from adhering to the pipe walls and forming blockages. This vibration ensures continuous reliable flow of coal even when excessive coal or debris is present in the supply.

Inventive Principle:
Principle #18Mechanical vibration

3Quantity of substance

If the coal is too moist and highly viscous, then the coal supply continues, but the coal sticks to the coal dropping pipe causing blockages

Engineering Contradiction:
Improvecoal supply continuityVSAvoidcoal adhesion and sticking
Core Design Contradiction:
Quantity of substanceVSObject-generated harmful factors

Solution Approach 1:

The shaking mechanism transforms the static coal dropping pipe into a dynamic system that actively prevents coal adhesion. The oscillatory motion creates forces that counteract the adhesive properties of moist, viscous coal, allowing continuous supply without sticking or blockage formation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Mechanical vibrations induced by the shaking mechanism prevent moist and viscous coal from adhering to the pipe surface. The vibrational energy disrupts the adhesive bonds between coal particles and the pipe wall, eliminating the harmful sticking effect while maintaining continuous coal supply.

Inventive Principle:
Principle #18Mechanical vibration

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device effectively reduces coal blockages by increasing coal movement velocity and breaking up larger coal pieces, providing automated and efficient pipe dredging with ease of installation and high automation.

Implementation Method 1

the first shaking plate and the second shaking plate reciprocate to approach or move away from each other. The reciprocating motion of the two shaking plates in the pipe can cause the movement of the coal when falling be more violent

Methodology Applied
Scientific EffectMechanical vibration: Vibration

Implementation Method 2

the rotation of the stirring rod can break up larger pieces of coal to make it fall smoothly

Methodology Applied
Scientific EffectMechanical force: Mechanical Force

Data Source

PatentUS11851269B2Dredging device
Publication Date: 2023.12.26 SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
  • US11851269B2 patent drawing
  • US11851269B2 patent drawing
  • US11851269B2 patent drawing

AI summary

A dredging device for dredging a pipe is provided including: a carrying frame, adapted to connected to a pipe; a shaking dredging unit including a first shaking plate and a second shaking plate, and the first shaking plate and the second shaking plate are arranged within the pipe; and a driving unit, connected to the carrying frame. The driving unit is connected to the first shaking plate and the second shaking plate for driving the first shaking plate and the second shaking plate to reciprocate to approach or move away from each other.