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Desulfurization absorption tower construction method

A desulfurization absorption tower and construction method technology, applied in the direction of manufacturing tools, metal processing equipment, used abrasive processing devices, etc., can solve the problems of poor anti-corrosion effect, etc., achieve superior anti-corrosion effect, high construction efficiency, and no construction. pollution effect

Inactive Publication Date: 2019-04-02
CHINA THIRD METALLURGICAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-corrosion construction of the desulfurization absorption tower is an important construction process, and it is easy to appear that the anti-corrosion effect of individual parts is not good after construction.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] See Table 1 for high temperature flake resin anticorrosion scheme

[0015] Table 1

[0016] Construction Project

wet film thickness

Degree of painting

color

LFD-80 primer

1×50-100 microns

2

brown translucent

LF-181 scale cement

2×1200-1900 microns

3

chrome green

LFM-80 Topcoat

1×220-280 microns

1

primary color

[0017] Construction method and construction process of the desulfurization absorption tower: installation of the desulfurization absorption tower shell - internal anticorrosion of the desulfurization absorption tower - installation of other auxiliary equipment of the desulfurization absorption tower, and the internal anticorrosion process of the desulfurization absorption tower: substrate weld seam cleaning - sandblasting treatment --Primer coating--Glass flake construction--Coating--Finish paint coating; specifically include:

[0018] 1) Surface treatment: remove oil stains and resi...

Embodiment 2

[0023] See Table 2 for the anti-corrosion scheme of low-temperature flake resin;

[0024] Table 2

[0025] Construction Project

wet film thickness

Degree of painting

color

DH 601-T primer

1×50-100 microns

1

brown translucent

DH 601-T scale cement

2×1500-1900 microns

3

chrome green

DH 601-T top coat

1×200-250 microns

1

primary color

[0026] Construction method and construction process of the desulfurization absorption tower: installation of the desulfurization absorption tower shell - internal anticorrosion of the desulfurization absorption tower - installation of other auxiliary equipment of the desulfurization absorption tower, and the internal anticorrosion process of the desulfurization absorption tower: substrate weld seam cleaning - sandblasting treatment --Primer coating--Glass flake construction--Coating--Finish coating; specifically include: 1) Surface treatment: remove oil stains and resid...

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PUM

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Abstract

The invention relates to a desulfurization absorption tower construction method, comprising a construction process flow: desulfurization absorption tower body installation, desulfurization absorptiontower internal anticorrosion and other desulfurization absorption tower auxiliary equipment installation, wherein the desulfurization absorption tower internal anticorrosion process comprises: 1) surface treatment : removing the oil stain and rust on the surface of a substrate, blasting sand to Sa2 1 / 2, before the sand blasting, sealing all manholes, ash holes, various gaging holes or pipe orifices in a flue, and controlling the surface roughness required to be in the range of 25-40 [mu]m; 2) painting the surface with primer, the amount of a diluent not exceeding 10% of the amount of paint; 3)performing the glass flake construction after the primer is determined to be dry through hand touch, applying flake plaster layer by layer until the coating reaches the design thickness, wherein theambient temperature is not lower than 5 DEG C, and the surface temperature is higher than the dew point of 5 DEG C; and 4) painting the surface with a top coat, and after finishing the coating, curingat 15 DEG C- 25 DEG C for 48h or more. The invention has high construction efficiency, superior anti-corrosion effect and no pollution in construction.

Description

technical field [0001] The invention relates to the construction of a sulfur absorption tower, in particular to a construction method for a desulfurization absorption tower. Background technique [0002] The desulfurization absorption tower is the main equipment of the absorption and oxidation system. It can absorb the liquid surface area of ​​SO2 as large as possible, and has high reliability and stability. At the same time, through the technical progress and innovation of the absorption device, the problems of large area and high cost of the process can be gradually and properly solved. The anti-corrosion construction of the desulfurization absorption tower is an important construction process, and it is easy to appear that the anti-corrosion effect of individual parts is not good after construction. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method for a desulfurization absorption tower, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D7/00B24C1/08B24C9/00
CPCB05D7/14B05D7/58B24C1/086B24C9/00
Inventor 杜江盛凯徐玉峰
Owner CHINA THIRD METALLURGICAL GRP