The birth of a new product - from identifying critical issues to devising a proper solution

In projecting its solutions for customers’ needs, it can happen that TAMA AERNOVA has to address challenging issues, demanding innovative approaches or proposals. Industrial fumes contaminated with acid gases, oils or unburnt particles are among the more complex ones to deal with, because they can make filter elements inefficient in a short time or pose a potential fire risk.

Inerting is a valuable aid for handling these fumes, a practice that consist of blowing calcium hydroxide CA(OH)₂ inside the filter to protect filter elements.

In processes relating to metals, plastics and petroleum derivatives; in sectors involving machinery that induces evaporation and atomisation of oils and solvents and results in the production of micro-mists; and in the biomass sector, filtration systems are subjected to high stress. Lime, as a basic compensating agent, facilitates the capture and neutralisation of substances present in process fumes. Due to its chemical-physical properties, lime bonds with pollutants and incorporates them into its molecular structure, transforming them into solid waste to be disposed of in the supply chain; through adsorption, encapsulation and precipitation, the phenomenon of inerting prevents pollutants to disperse into the environment.

In addition, calcium hydroxide reduces the permeability of filter elements, i.e., it prevents the penetration of micronic dust, countering so-called vitrification and clogging, and significantly prolonging their life. Furthermore, lime prevents unburnt particles in the air stream from aggregating, thus mitigating the risk of fire hazards. Periodic insufflation of the substance, therefore, reduces fire risk, inhibiting the creation of potentially explosive atmospheres and supporting the operation of ATEX systems by limiting the frequency of their activation, avoiding annoying glitches and production stoppages. 

INERTING FOR THE PURIFICATION OF INDUSTRIAL FUMES: THE TAMA AERNOVA LIME DOSING SYSTEM 

To provide effective solutions and improved technologies, TAMA AERNOVA has developed its expertise in the sector, broadening its range to include a novel inerting system featuring a lime dosing system capable of both receiving input from the filtration plant and of working autonomously, with settings that can be varied as the work proceeds.

TAMA AERNOVA's design approach focuses on the creation of a single product that is versatile, adaptable and configurable to the specific situation. Lime dispensing is regulated by time cycles determined by the quality of the fumes to be processed. Compared to standard products, the pneumatic system and PLC are the innovative aspects with which the TAMA AERNOVA dispenser is equipped. Lime fluidization and vibration also prevent the formation of agglomerates, allowing sensors and valves to function correctly and thus guaranteeing optimal delivery. In this way, the elimination of the mechanical auger and the most wear-prone components has significantly reduced the machine's vulnerabilities.

Designed for plug-and-play functionality, the dispenser can be readily installed in any existing system without any need for structural modifications and it can interface with any type of bag or cartridge filters, although it is primarily designed for application on PULCO AIR and OPF systems.

Light and compact, the new TAMA AERNOVA lime dosing system solves the main problems related to the corrosion and wear and tear of filter units, generating major cost savings due to reduced maintenance of the filtration system and improved safety conditions.