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An online method for opening holes in a coke oven brick-concrete chimney

A technology of coke oven bricks and chimneys, which is applied to the heating of coke ovens, coke ovens, coke oven parts, etc. It can solve problems such as the difficulty of opening holes, shorten the opening time, reduce construction intensity, and improve work efficiency. efficiency effect

Active Publication Date: 2021-08-13
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the technical problems existing in the prior art, and provides an online drilling method for the brick-concrete structure chimney of the coke oven. This technical solution mainly solves the problem that the traditional drilling method is difficult to solve without affecting the normal production of the coke oven. The problem

Method used

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  • An online method for opening holes in a coke oven brick-concrete chimney
  • An online method for opening holes in a coke oven brick-concrete chimney
  • An online method for opening holes in a coke oven brick-concrete chimney

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Embodiment 1

[0030] Embodiment 1: An online opening method for a brick-concrete structure chimney of a coke oven. The control method includes the following steps: 1) The opening structure is designed, and the large-diameter air inlet is divided into several grids. Small holes can ensure the structural strength of the chimney concrete and clay brick layer, and can also ensure sufficient air-introduction channels; 2) Integral pouring of the air-introduction door. Reinforced concrete structure is used to cast the air induction door as a whole, and the connecting parts are pre-embedded to prepare for the subsequent connection of external process pipelines, which can ensure the tightness of the connecting pipelines, facilitate construction operations, and also reinforce the opening parts; 3) adopt The layered drilling method can prevent the two-layer structure inside and outside the chimney from being greatly damaged, and at the same time prevent a large amount of cold air from being sucked into...

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Abstract

The invention relates to an online hole opening method for a brick-concrete structure chimney of a coke oven. The control method includes the following steps: 1) Designing the hole structure, designing the hole structure, 2) Integral pouring of the air induction door, adopting a reinforced concrete structure for integral pouring The draft door ensures the tightness of the connecting pipes, facilitates construction operations, and at the same time reinforces the opening; 3) Drilling in layers, using layered drilling, 4) Sealing in blocks, 5) Opening Hole quality control, process control in accordance with quality technical requirements. Control the drilling progress, observe the drilling section, and smooth out the pits in the section in time; 6) The gap between the concrete layer and the clay brick layer should be filled with light heat insulating materials and smoothed with high-temperature mud; 7) Install the external process connecting pipe, pre-fabricate the connecting pipe with the inspection door and the adjusting sealing door, and connect and install it with the air induction door; 8) Remove the block sealing baffle, close the adjusting sealing door on the connecting pipe, and from Remove the block sealing plate from the inspection door, and close the inspection door.

Description

technical field [0001] The invention relates to a hole opening method, in particular to an online hole opening method for a coke oven brick-concrete structure chimney, and belongs to the technical field of coke oven production. Background technique [0002] In response to the national environmental protection and energy-saving policy regulation, the application of new technologies related to coke oven flue gas treatment is becoming more and more popular, such as flue gas heat energy recovery technology, flue gas desulfurization and denitrification treatment technology, etc. Without exception, the application of these technologies requires exhaust gas to be drawn from the original flue, and then returned to the chimney to be discharged into the atmosphere after treatment. However, at the beginning of the construction of the coke oven, the application of subsequent new technologies was not considered, resulting in no ready-made interface available, so new holes must be added t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B29/00
CPCC10B29/00
Inventor 张有猛王国辉张文成桂路路
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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