Refractory Brick Groove Design for Pipe Attachment
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Solution Overview
Problem
Existing constructions for attaching plate-shaped molded bricks to vertical heat-dissipating pipes require additional support elements for secure vertical holding and do not allow for expansion movements, complicating the attachment process and increasing the risk of misalignment.
Innovation Solution
A plate-shaped molded brick design featuring a downwardly open recess at the lower end of the groove to be filled with mortar, creating a stable base, and incorporating spacers and inclined sides for secure parallel alignment and expansion accommodation, eliminating the need for external support elements and ensuring precise, secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional support elements are attached to pipes to hold shaped blocks vertically, then secure vertical support is achieved, but device complexity increases
Solution Approach 1:
The groove structure is merged with the brick body itself, eliminating the need for separate support elements. The groove with undercut and mortar base integrates the support function directly into the brick, reducing overall device complexity while maintaining secure vertical support.
Solution Approach 2:
The brick's own groove structure provides the support function without requiring external support elements. The mortar base formed within the groove serves the brick itself, allowing the brick to be self-supported through its integrated groove design.
2Manufacturing precision
If rigid attachment methods are used to hold molded blocks, then secure positioning is achieved, but expansion movements are restricted
Solution Approach 1:
The attachment system transitions from rigid to dynamic by using a mortar base that allows controlled movement. The groove with undercut provides initial positioning precision, while the mortar base accommodates thermal expansion and contraction, enabling the brick to move dynamically with temperature changes.
Solution Approach 2:
The material state of the mortar base changes from liquid to solid, providing a transition from flexible to rigid support. The mortar starts as a fluid that fills the groove, then hardens to provide stable support while retaining slight flexibility to accommodate expansion movements.
3Reliability
If multiple support elements are attached to pipes, then secure holding is achieved, but handling becomes more difficult
Solution Approach 1:
The support function is merged into the brick's groove structure, eliminating separate support elements that complicate handling. The integrated groove design allows for simpler installation while maintaining secure holding through the mortar base and retaining pin mechanism.
4Reliability
If complex attachment constructions are used, then secure support is achieved, but alignment precision deteriorates
Solution Approach 1:
The groove with undercut is pre-formed in the brick to guide the retaining pin head into the correct position. This preliminary structural feature ensures proper alignment before the mortar sets, preventing misalignment issues that can occur with complex attachment constructions.
Data Source
AI summary
The invention relates to a refractory, plate-shaped molded brick for lining a firebox, wherein the molded brick covers parallel, heat-dissipating pipes and has parallel, partially cylindrical longitudinal recesses on the reverse side, in each of which a pipe partially extends such that a gap exists between the outer wall of the pipe and the wall of the longitudinal recess, which can be filled with mortar or concrete, and wherein the molded brick has at least one vertical, inwardly widening groove to receive the head of at least one retaining pin which is attached to a pipe or to a web of the pipes, wherein the lower end of the groove widens to form a downwardly open recess which can be filled with mortar to form a mortar base.