Construcción de la estructura metálica para el gasificador tipo downdraft de la Facultad de Mecánica

Abstract

In this curricular Integration Work, the construction process of the metallic structure for the downdraft type gasifier of the Mechanics Faculty, was carried out. A technical analysis of the initial situation of the environment was made, knowing the state of the foundation, the unavailability of the system due to climatic factors, the abandonment time and the need for a safe metal structure using regulations. It began with a design proposed by colleagues Daniel Molina and David Moreta who provided steel information to be used, height measurements, width, thickness and tolerances for the construction. For which a construction plan was made indicating the dates and activities. It was decided to acquire the ASTM A36 structural steel due to the recommendations indicated under the NEC and design regulations. Different types of materials were used, such as: rectangular pipe, electro-welded mesh, corrugated rod, non-slip plates, belt-type profile, angle, among others. . Therefore, focused on the protection of the surface of the material, the standard SSPC SP1, SSPC SP2, SSPC PA1 was used, in all the material. SMAW welding was used to join the metallic structure, applying coated electrode 6011 and 7018. For the doors construction, the NTE INEN 2209 standard was used, in the manufacture of the stairs the NTE INEN 2249 standard was necessary, also the NTE INEN 2244 standard for the manufacture of handrails. Compliance with the regulations used was verified, in addition the NDT was carried out by penetrating inks based on the ASTM E 165 standard. Through the NEC regulations, it was possible to build a metal structure with safety and quality standards. It is recommended to constantly carry out preventive maintenance with anticorrosive paint to prevent oxidation due to climatic factors.