Hydrochloric acid storage tank is a kind of highly corrosive tank specially containing hydrochloric acid and sulfuric acid. It can be made of plastic and glass fiber reinforced plastic. Generally, tanks are produced that can be stored for a long time. On-site construction of the hydrochloric acid storage tank is one of the main points of long-term storage of the tank. What are the specific requirements for on-site construction of hydrochloric acid storage tanks?
Hydrochloric acid storage tank materials shall have product quality certification documents and quality inspection reports, and their performance shall comply with the provisions of product technical documents. Painted materials should be transported to the construction site in a sealed manner according to the manufacturer's requirements. The original container should have the product identification, batch number, storage period, manufacturer data and color code. The hydrochloric acid storage tank must not use expired paint materials.
All on-site coated surfaces must be inspected by the owner or a supervisor designated by the owner before the coating is applied and before each primer is applied. The thickness of the paint film is measured after each coating is applied to ensure compliance with the total dry film thickness requirements. The design life of various anticorrosive coatings for hydrochloric acid storage tanks should not be less than 7 years. The anticorrosive construction environment for the hydrochloric acid storage tank and its attached steel structure shall meet the requirements of GB50393-2008 and paint materials. The technical requirements for the anticorrosive construction of hydrochloric acid storage and its attached steel structures shall comply with the regulations in GB50393-2008 and SH / T3548-2011.
The relevant provisions of the construction site of hydrochloric acid storage tank shall be implemented. The rust-removing grade of the part of the bottom of the hydrochloric acid storage tank protruding from the tank wall is Sa2.5 or St3, and the rust-removing grade of the metal surface of other parts is Sa2.5. All kinds of embedded parts, fixed parts and welded joints appearing at the construction site can be removed by manual mechanical rust removal, and the rust removal level is St3. 2.3 Before removing the rust, the thick rust layer on the steel surface should be removed to remove visible grease and dirt. The hydrochloric acid storage tank should remove the floating ash and debris on the steel surface, and measures should be taken to prevent the occurrence of rust on the hydrochloric acid storage tank again.