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Absorption tower all-alloy lining process and all-alloy lining anticorrosive absorption tower

An absorption tower and alloy technology, applied in the field of absorption tower anti-corrosion, can solve the problems of easy fire, accidents and losses, anti-corrosion shutdown and repair of absorption tower, etc., to improve wear resistance and anti-corrosion performance, reduce maintenance frequency, high safety and reliability Effect

Pending Publication Date: 2018-11-23
SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The anti-corrosion form of the absorption tower mainly includes carbon steel body lined with organic materials for anti-corrosion. Because of this, physical corrosion damage such as swelling, bubbling, delamination, peeling, debonding, and cracking are prone to occur, resulting in the absorption tower anti-corrosion shutting down for repairs. The repair process Easy to catch fire, causing accidents and losses

Method used

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  • Absorption tower all-alloy lining process and all-alloy lining anticorrosive absorption tower
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  • Absorption tower all-alloy lining process and all-alloy lining anticorrosive absorption tower

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0046] Such as figure 1 As shown, an absorption tower all-alloy lining process, including:

[0047] Step 1. Grinding and sandblasting, and then applying primer, including:

[0048] Step 1.1. The surface of the steel substrate of the absorption tower is smooth, the corners are smoothly transitioned, the radius of the convex corner is greater than 5mm, and the radius of the concave corner is greater than 10mm; the unevenness of the local area (including the weld) is less than 3mm, and after grinding, the thickness of the shell It must be greater than the minimum thickness of the equipment design; surface defects such as pitting, cracks, undercuts, scratches, and scales must be removed by grinding, and repaired by welding where necessary. Air holes; the lap length between various materials is not less than 30mm, and the gap between the bottom plate of th...

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Abstract

The invention discloses an absorption tower all-alloy lining process and an all-alloy lining anticorrosive absorption tower. The absorption tower all-alloy lining process comprises the following steps: step I, grinding and sand blasting a carbon-steel basal plate inside an absorption tower, and then painting base coat.

Description

technical field [0001] The invention relates to the technical field of absorption tower anticorrosion, in particular to an absorption tower all-alloy lining process and an all-alloy lining anticorrosion absorption tower. Background technique [0002] In the wet flue gas desulfurization system of conventional large units, the absorption tower is the core equipment, and it is of great significance to improve its service life and reliability, especially in the current domestic flue gas bypass and increasingly strict regulatory environment. The anti-corrosion form of the absorption tower is the key factor affecting its service life and reliability. [0003] The anti-corrosion form of the absorption tower mainly includes carbon steel body lined with organic materials for anti-corrosion. Because of this, physical corrosion damage such as swelling, bubbling, delamination, peeling, debonding, and cracking are prone to occur, resulting in the absorption tower anti-corrosion shutting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B01J19/02
CPCB01D53/18B01J19/02B01D2258/0283
Inventor 张军梅李玉萍刘羽
Owner SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP