Leakage stoppage and anticorrosion of chimney outer wall

In this project, the outer wall of the concrete chimney of the 100m boiler is sealed and anticorrosive, and all external paints, ladders, protective nets and platform metal parts are anticorrosive. l38-5lO6-5559

Second, the process flow:

Prepare tools, such as plugging and anti-corrosion, rust removal, primer coating, topcoat coating, chimney coating, writing, etc. Conduct inspection and acceptance.

Third, the construction scheme and painting process:

1, construction scheme

1. 1. Overview of the construction scheme of Jiangsu Fayuan High-altitude Engineering Co., Ltd.: The external wall plugging, chimney, ladder climbing, net protection and platform painting works are carried out by the high-altitude suspension operation scheme, and the construction is carried out by the high-altitude suspension operation in a non-stop time, and the construction personnel use the tower to sit on the climbing board for derusting and painting.

1.2. According to the requirements of manufacturers and national standards, the platform at the top of the chimney is fixed on the platform with12 steel wire rope, hung on the steel wire rope with18 round steel S hook, fitted with pulleys, and the pulleys are made to stand upright with white heald ropes. no danger of anything going wrong

1.3, delimit the construction area, set up no entry signs, and send full-time security officers to patrol the ground. When working high above the ground, the construction personnel should fasten the safety protection rope and safety lock first.

2. Painting process

2. 1. Derusting treatment: the parts with serious corrosion of ladder protective net and platform are polished to ST2. 0-ST3 grade standard, polish off the paint powder layer and coating with weak adhesion at other parts, and keep the hard and complete old coating.

2.2. Surface environment: The painted surface should be dry enough to remove dust.

For impurities such as oil stain, the temperature and temperature during painting under normal conditions are: the surface temperature of steel structure is at least 3℃ higher than the dew point temperature, and the relative temperature should be lower than 85%.

2.3. Paint construction: The color of topcoat of each part shall conform to the owner's construction specifications and fully meet the owner's requirements for color. The brand paint produced by the manufacturer designated by the owner is selected, and the combination of manual brushing and roller coating is adopted during construction. The brushing interval shall not be lower than the coating manufacturer's suggestion, with two bottoms and two sides, so as to achieve uniform color matching, no brush leakage and sagging, and no obvious color difference after the overall completion.

Fourth, security measures:

1, the construction personnel experience on schedule, always know the staff's physique and thoughts, and prevent people who are hard of hearing and have poor eyesight from participating in the construction.

2. Strive to create a good construction environment, let employees make more contributions to the project, ensure that they don't drink before going to work, don't go to work in spite of illness, work and rest on time, strictly implement safety rules and regulations, and formulate emergency plans for the project in detail.