Coke Oven Precast Block Installation Under Upper Rails

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Solution Overview

Problem

The installation of precast blocks in a coke oven is hindered by the presence of rails on the upper part, which obstruct the movement of the precast blocks and interfere with the wire suspending them, making it difficult to construct the combustion chamber.

Innovation Solution

The precast blocks are designed with joint end faces positioned in the under-rail region, allowing them to be suspended and lowered without interfering with the rails, and moved in the longitudinal direction to be installed at accurate positions, with the joint end face located in the under-rail region.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If precast blocks are installed in a coke oven with rails on the upper part, then the combustion chamber can be reconstructed, but the rails obstruct the movement of precast blocks and interfere with the suspending wire

Engineering Contradiction:

Improveease of precast block installationVSAvoidobstruction by rails

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The precast blocks are designed to be partially located in the under-rail region, utilizing the three-dimensional space beneath the rails. By positioning joint end faces in the under-rail region, the installation method transforms the problem from a two-dimensional plane obstruction into a three-dimensional spatial solution, allowing blocks to be moved and installed without interfering with the rails above.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Manufacturing precision

If precast blocks are moved in the longitudinal direction to reach installation positions, then accurate positioning is achieved, but the wire may interfere with the rails during movement

Engineering Contradiction:

Improveprecision of precast block positioningVSAvoidinterference between wire and rails

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The under-rail region serves as an intermediary space that facilitates the movement of precast blocks without direct contact between the suspending wire and the rails. By positioning joint end faces in this intermediate zone, the wire can move blocks along the longitudinal direction while the rails remain above, preventing interference and enabling precise positioning.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentEP4692281A1Method of installing precast block, and coke oven

Publication Date: 2026.02.11 MEGATECH CORPORATION

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AI summary

A problem to be solved by the present invention is to enable the precast blocks to be easily installed in the coke oven even though the rails present on an upper part of the coke oven. A method of installing precast blocks (PB) in a coke oven (1) provided with rails (R) on an upper part of the coke oven (1) includes: a preparation step of preparing a precast block (PB) such that a joint end face (SE) where a laterally adjacent precast block (PB) is joined is positioned in an under-rail region (BR); a lowering step of suspending and lowering the precast block (PB) from the upper part of the coke oven (1) without interfering with the rails (R); a moving step of moving the precast block (PB) in a longitudinal direction (FD) such that, for each of the precast blocks (PB) partially located in the under-rail region (BR), one of its joint end faces (SE) is located in the under-rail region (BR); and an installation step of installing the precast block (PB) in an intended installation position (SPB).