THIN-WALLED COATINGS OF AGRO-INDUSTRIAL COMPLEX FACILITIES AND TREATMENT FACILITIES
Rubrics: 2. CHEMICAL TECHNOLOGY
Authors:
1.
Institut mehaniki i mashinostroeniya FIC KazNC RAN
2.
Kazan State University of Architecture and Engineering
3.
Institut mehaniki i mashinostroeniya FIC KazNC RAN
Type:
Article
Pages:
from 98
to 104
Status:
Published
Received:
28.01.2026
Accepted:
28.01.2026
Published:
28.01.2026
Language:
Russian
Keywords:
COATING OF A TREATMENT PLANT SETTLING TANK, KNOWN COATINGS, FRAGMENTS OF A TOROIDAL CORRUGATED SHELL, SYSTEM OF BLOWDOWN CHANNELS, REDUCTION OF CORROSION
Abstract:
Thin-walled structures that combine strength, rigidity and minimum weight are widely used in the agro-industrial complex, in particular, bunker-type structures are cylindrical shells articulated with a cone. To solve environmental problems - reduce harmful gaseous emissions into the atmosphere - open treatment facilities are covered with coatings. Known coatings used in agro-industrial complex structures, as well as in settling tank structures, are relatively heavy and, due to design imperfections, are subject to rapid corrosion wear. The objective of the work is to analyze the known coating design in the form of a synthesis of a cylindrical and shallow conical shell. The objectives of the study are to develop a lightweight version of the coating design with minimal material consumption and high durability. The paper notes some known coatings; an analysis of the design of a settling tank variant in the form of a synthesis of a cylindrical and smooth shallow conical shell is provided. The efficiency of shell dome-shaped coatings is noted. Variants of a corrugated conical and toroidal shell, distinguished by minimal weight properties, are analyzed; By changing the parameters of the corrugation, it is possible to change the rigidity characteristics of the shell in a wide range. In the central part, the required rigidity of the structure is ensured by the presence of a two-layer corrugated shell. A new structural and power scheme of the coating is described, eliminating the noted disadvantages. The new version of the coating, consisting as a whole of two sections of the toroidal shell, has a corrugated structure in the circumferential direction. The shape of the coating simplifies the technology of gas extraction from the air space of the pool. In the lower part, the coating is closed with an anti-corrosion protective screen, forming purge channels with corrugations. Such a coating scheme can be interpreted as a constructive solution to the problem of corrosion wear. In addition to the noted advantages, the coating is environmentally friendly, has an architecturally expressive shape, provides maximum load-bearing capacity with minimum weight of the structure, and has a high durability. Recommended for use when designing new septic tank coatings.
Thin-walled structures that combine strength, rigidity and minimum weight are widely used in the agro-industrial complex, in particular, bunker-type structures are cylindrical shells articulated with a cone. To solve environmental problems - reduce harmful gaseous emissions into the atmosphere - open treatment facilities are covered with coatings. Known coatings used in agro-industrial complex structures, as well as in settling tank structures, are relatively heavy and, due to design imperfections, are subject to rapid corrosion wear. The objective of the work is to analyze the known coating design in the form of a synthesis of a cylindrical and shallow conical shell. The objectives of the study are to develop a lightweight version of the coating design with minimal material consumption and high durability. The paper notes some known coatings; an analysis of the design of a settling tank variant in the form of a synthesis of a cylindrical and smooth shallow conical shell is provided. The efficiency of shell dome-shaped coatings is noted. Variants of a corrugated conical and toroidal shell, distinguished by minimal weight properties, are analyzed; By changing the parameters of the corrugation, it is possible to change the rigidity characteristics of the shell in a wide range. In the central part, the required rigidity of the structure is ensured by the presence of a two-layer corrugated shell. A new structural and power scheme of the coating is described, eliminating the noted disadvantages. The new version of the coating, consisting as a whole of two sections of the toroidal shell, has a corrugated structure in the circumferential direction. The shape of the coating simplifies the technology of gas extraction from the air space of the pool. In the lower part, the coating is closed with an anti-corrosion protective screen, forming purge channels with corrugations. Such a coating scheme can be interpreted as a constructive solution to the problem of corrosion wear. In addition to the noted advantages, the coating is environmentally friendly, has an architecturally expressive shape, provides maximum load-bearing capacity with minimum weight of the structure, and has a high durability. Recommended for use when designing new septic tank coatings.
Keywords:
COATING OF A TREATMENT PLANT SETTLING TANK, KNOWN COATINGS, FRAGMENTS OF A TOROIDAL CORRUGATED SHELL, SYSTEM OF BLOWDOWN CHANNELS, REDUCTION OF CORROSION
COATING OF A TREATMENT PLANT SETTLING TANK, KNOWN COATINGS, FRAGMENTS OF A TOROIDAL CORRUGATED SHELL, SYSTEM OF BLOWDOWN CHANNELS, REDUCTION OF CORROSION
