Integral casting construction process of dry quenching furnace

A technology of integral pouring and CDQ, which is applied in coking ovens, petroleum industry, heating of coke ovens, etc., can solve problems such as CDQ furnace repairs that have not been reported yet, and achieve low cost, long service life, and large amount of engineering Effect

Inactive Publication Date: 2012-09-05
SHANDONG IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The above patent documents only involve the repair of some sections of the CDQ furnace. How to repair the CDQ furnace as a whole without destroying the original structure of the CDQ furnace has not been reported so far.

Method used

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  • Integral casting construction process of dry quenching furnace
  • Integral casting construction process of dry quenching furnace
  • Integral casting construction process of dry quenching furnace

Examples

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Embodiment

[0029] Example: The overall structure of the dry quenching furnace is as figure 1 Shown.

[0030] 1. The cooling section 1 of the dry quenching furnace is integrally poured with castables. Before pouring, the wall is cleaned with compressed air and then cleaned with detergent. Finally, by applying a layer of high-temperature interface adhesive, installing fork anchors 3, and inserting anchor grooves 4 in the wall to increase the adhesion of the castable, To improve its strength, after supporting mold 5, self-flowing castable is used for overall pouring. The height of the cooling section along the furnace wall in each pouring is 1.2 meters. After solidification for one day, the mold is removed and pouring upwards. The overall pouring thickness is 125mm. To withstand the abrasion of coke, thermal stress peeling and gas impact, protect the structural stability of the inclined flue, and achieve the purpose of extending the service life of dry quenching. The cooling section anchors a...

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Abstract

The invention relates to an integral casting construction process of a dry quenching furnace, comprising the following steps: casting dry quenching furnace cooling sections, outer part of chute bracket front side, two side walls and the bottom of a boiler inlet and a bifurcation chute of a primary dust remover, integrally casting by adopting automatically-flowing casting materials, baking the dryquenching furnace for 65-84 hours at the temperature of no higher than 600 DEG C after finishing casting. Under the condition of not damaging the prior structural conditions of the dry quenching furnace, the invention thoroughly solves the problem that the work amount is large in the prior bricking inlayed repairing scheme, ensures favorable integrity of laid bricks, saves time and material, and has low cost and long service life.

Description

Technical field [0001] The invention relates to an integral pouring construction process when a dry quenching boiler is built, and belongs to the technical field of coking production equipment. Background technique [0002] CDQ is a method of using inert gas to cool the red coke. CDQ is performed in a CDQ boiler (commonly known as a dry quenching furnace). Due to the frequent thermal shock in the CDQ process, the masonry in the CDQ furnace is easily damaged. At present, bricklaying mosaic repair schemes are commonly used in the process of overhaul construction. The conventional bricklaying scheme has a large amount of work, poor integrity of the masonry, and time-consuming Material waste, high cost, short service life, and the same damage will be repeated within a few months. [0003] CN101250414 discloses a method for repairing the chute area of ​​a dry quenching furnace, which is used to solve the problem that the chute area of ​​the dry quenching furnace is easily damaged and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B29/00C10B39/02
Inventor 刘隆利陶教祥王伟张民强李克明吕同军王介浩穆允生李永芳马健于咏春薛鹏祝学会李念会聂昊
Owner SHANDONG IRON & STEEL CO LTD
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