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Integral casting construction process of dry quenching furnace

A technology of integral pouring and CDQ, which is used in coke ovens, petroleum industry, heating of coke ovens, etc., can solve problems such as CDQ repairs that have not been reported, and achieve low cost, good integrity and long service life. Effect

Inactive Publication Date: 2010-03-17
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

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Embodiment: The overall structure of the dry quenching furnace is as follows figure 1 shown.

[0030] 1. The cooling section 1 of the CDQ furnace is integrally poured with castables. Before pouring, the wall is first cleaned with compressed air, and then cleaned with a cleaning agent. Finally, by applying a layer of high-temperature interface adhesive, installing fork-shaped anchors 3, and interspersing anchor grooves 4 in the wall, the adhesion of the castable is increased. To improve its strength, self-flowing castables are used for overall pouring after the formwork is supported 5 times. The annular height of the cooling section along the furnace wall is 1.2 meters for each pouring. After one day of solidification, the formwork is removed and continued to pour upwards. To withstand the wear of coke, thermal stress spalling and gas impact, protect the structural stability of the inclined flue, and achieve the purpose of prolonging the service life of CDQ. Cooling se...

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PUM

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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 during construction of a coke dry quenching boiler, and belongs to the technical field of coking production equipment. Background technique [0002] CDQ is a method of using inert gas to cool red coke, and CDQ is carried out in a CDQ boiler (commonly known as CDQ furnace). Due to the frequent thermal shocks during the CDQ process, the masonry inside the CDQ furnace is easily damaged. At present, the brick-laying inlay repair scheme is generally used in the overhaul construction process. The conventional brick-laying scheme has a large amount of work, poor masonry integrity, and time-consuming Waste of materials, high cost, short service life, and the same damage will repeat within a few months. [0003] CN101250414 discloses a method for repairing the chute area of ​​the CDQ furnace, which is used to solve the problem that the chute area of ​​the CDQ furnace is easily damaged and diffic...

Claims

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Application Information

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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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