Reactor Shaft Cooling and Particle Separation
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Solution Overview
Problem
The finest and lightest particles of solid material are not effectively separated from gas in existing reactors, leading to potential deposits in pipelines and inefficiencies in the recycling process.
Innovation Solution
A reactor design featuring a gas/particle separator device outside the reactor housing, which includes a cylindrical pipe with a rotatable feed screw that separates solid particles from gas and returns them to the reactor, along with coolant channels in the rotor shaft to manage high temperatures and a radial clearance for non-degradable objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gas/particle separator device is added outside the reactor housing, then particle separation efficiency is improved, but device complexity increases
Solution Approach 1:
The system is divided into two functional parts: the reactor housing for gasification and the external gas/particle separator device for separation. This segmentation allows each component to be optimized independently and simplifies the overall system design by placing the separation function outside the reactor.
Solution Approach 2:
The gas/particle separator device acts as an intermediary component between the reactor and the gas discharge system. It receives the gas-particle mixture from the reactor, separates the particles, and returns them to the reactor, thereby mediating the interaction between the reactor and downstream systems.
2Temperature
If rotor shaft cooling channels are implemented, then temperature control is improved, but device complexity increases
Solution Approach 1:
The cooling channels are nested within the rotor shaft structure itself, utilizing the existing rotational component to serve dual purposes: mechanical rotation for gasification and fluid transport for cooling. This eliminates the need for separate cooling structures.
Solution Approach 2:
The rotor shaft performs self-cooling by circulating coolant through channels built into its own structure. The rotational motion of the shaft naturally facilitates coolant flow, and the system uses its own operational movement to achieve cooling without requiring external cooling mechanisms.
3Object-affected harmful factors
If radial clearance is provided for non-degradable objects, then protection from damage is improved, but manufacturing precision requirements increase
Solution Approach 1:
A radial clearance is provided between the rotor and reactor housing before any damage can occur. This clearance acts as a buffer zone that allows non-degradable objects to be contained within the reactor without contacting or damaging the rotor or housing, preventing harmful interactions in advance.
Solution Approach 2:
The radial clearance is implemented specifically in the region where non-degradable objects may accumulate, providing localized protection where needed. The clearance is positioned to protect critical components from damage while maintaining the overall structural integrity and operational efficiency of the reactor.
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 solution effectively separates solid particles from gas, preventing deposits and enhancing recycling efficiency, while also managing high temperatures and protecting the reactor from damage by non-degradable objects.
Implementation Method 1
a rotatable feed screw arranged coaxially in the pipe, the pitch and direction of rotation of which produces transport of solid particles in the direction of the reactor housing
Implementation Method 2
at least a portion of the rotor shaft between the motor and the rotor is formed with channels running in the longitudinal direction of the rotor shaft which are in flow communication with a coolant
Implementation Method 3
channels running in the longitudinal direction of the rotor shaft which are in flow communication with a coolant
Implementation Method 4
by the frictional heat generated between the particles in the atomized and swirling material
Implementation Method 5
gasified hydrocarbon products, water and other organic matter are gasified, whereby gas and solid fractions are separated by the centrifugal force generated by the rotor
Data Source
AI summary
Reactor for recovery or recycling of hydrocarbon products from hydrocarbon-containing material by decomposing and gasifying the material in a reactor housing, comprising a gas/particle separator device arranged to separate solid particles accompanying the gas and to return these particles directly to the reactor housing in the opposite direction to axially flowing gasified hydrocarbon products, and/or comprising a rotor shaft with axially running channels which are in flow communication with a coolant, and/or comprising a radial play formed between the periphery of a rotor and the inside of the reactor housing and amounting to at least 3 cm and at most 6 cm.