The Chiken Feeder
With more than 18 thousand estimated farms and circa 40 thousand workers involved, poultry farming represents a crucial sector in the national agri-food industry. One of the critical issues that a farmer must face, is how to manage the huge amount of poultry faecal material, in order to reuse it as byproduct to produce electricity and fertilizer, turning a cost into an economic resource. Some years ago a Biogas company, client of Biological Care, asked a well known agricultural machinery builder to envelope a two-part system based on a hopper to transport the biological waste connected to a pulper tank. The original project failed because they were not able to find a technical way to separate the poultry faecal material from the mineral sediment.
This last one is due to the poultry digestive process itself. Having no teeth to chew, poultry need to ingest little stones, using their strong stomach contractions to fragment the feed. Once evacuated, the faeces will contain parts of them that, once stored, will settle on the tank bottom. Moreover, in laying hens farms, the feed is frequently added with calcium carbonate, in order to help the eggshell forming process. Also this substance tends to reach the bottom, subtracting storage capacity and requiring removal. Starting from the existent project, Biological care has developed a better solution, to avoid the mineral sedimentation. This technology, called Chicken Feeder is composed of a 45 m3 hopper in which the material is loaded and stirred by two cochleas.
The hopper, equipped with a metal cover to avoid any contact with the external environment, is manually operated by hydraulic jacks. Once inside, the conveyor belt transports the material into a stainless steel pulper tank of 27 m3 capacity, equipped by sensors for the correct regulation of load flows and storage levels.
The Chicken Feeder system can dissolve the excrement mixed with carbon calcium and various mineral sediments by a special liquid insufflation. On the pulper tank bottom a cochlea has been placed to permit the mineral dust expulsion with no leakage of bad smells. Thanks to its ability to analyse complex issues, providing a customized solution, Biological Care has gained a leadership position on the renewable energies market. The Chicken Feeder is an emblematic case study of the company vision, focused, since the beginning of its history on defining new strategies for the future of the green economy.