Reactor Rotor Shaft Extraction for Housing Maintenance Access

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Solution Overview

Problem

Existing reactors require extensive dismounting work to access rotor vanes and wear surfaces for service or replacement, limiting maintenance efficiency.

Innovation Solution

A reactor design with a dismountable housing part and a shaft extending in one direction, supported by external bearings and a support device, allowing easy access to rotor vanes and wear surfaces for maintenance, and featuring hammers with articulated parts for force distribution and material processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the reactor housing is made sealed and integrated, then reliability and containment are improved, but ease of repair deteriorates due to extensive dismounting work required

Engineering Contradiction:
ImprovecontainmentVSAvoidaccess to rotor vanes
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The housing is divided into multiple separable parts: a first part containing the rotor and a second part forming the remainder of the housing. These parts can be disassembled from each other while maintaining the sealed reaction chamber environment, allowing access to rotor vanes without compromising containment integrity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rotor shaft is designed to extend outward from the housing through a bearing arrangement, extracting the shaft end outside the sealed housing. This allows maintenance personnel to access and service the rotor vanes and shaft from the exterior without disassembling the sealed housing structure.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If the rotor shaft is supported by bearings inside the housing, then compactness is improved, but ease of repair deteriorates due to limited access for service

Engineering Contradiction:
ImprovecompactnessVSAvoidaccess to shaft
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The shaft is extracted through the housing structure with bearings arranged to support the shaft both inside and outside the housing. The portion of the shaft outside the housing provides an accessible interface for maintenance operations while the bearings maintain proper support and alignment.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A bearing arrangement acts as an intermediary between the internal rotor shaft and external maintenance access. The bearings enable the shaft to be supported while allowing it to extend through the housing boundary, mediating between the need for compact internal support and external accessibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If wear-resistant material is applied to housing surfaces, then reliability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvewear resistanceVSAvoidhousing manufacturing
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The housing is segmented into parts that can be separately manufactured and assembled. Wear-resistant material can be applied to specific surfaces of individual housing parts during manufacturing, and these parts are then assembled together, reducing overall manufacturing complexity compared to applying wear-resistant coating to a complete housing structure.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9180425B2Reactor comprising a rotor
Publication Date: 2015.11.10 CASSANDRA LTD
  • US9180425B2 patent drawing
  • US9180425B2 patent drawing
  • US9180425B2 patent drawing

AI summary

The present invention relates to a reactor for the separation of material included in composite raw material, which reactor comprises at least one reaction chamber and at least one rotor, said reaction chamber comprising at least one housing that is sealed in relation to the surroundings and has at least one inlet opening and at least one outlet opening, and said rotor comprising at least one shaft. At least a first part of said rotor is situated in said housing, and said shaft extends in only one direction from said first part through and out of said housing.