Manure Treatment: Drying & Handling

Just one of the many systems Facco’s developed to answer the manure drying and handling problems.

Manure Drying System (MDS)

The MDS system has been designed to dry the manure produced in poultry installations by using the ventilation system of the installations themselves, which, if necessary, is integrated with independent fans. The MDS system cam be installed along side a shed predisposed for this aim or an alredy existing one, placed very close to the poultry installation. It is composed by a superimposed succession of motorised belts. Fresh manure is loaded onto the upper part and unloaded, to be transported to the stocking area, from the bottom level. The desiccation level of the final product, dry manure, allows an easy transportation and can be considered as an NP organic fertiliser, whose content of N and P2O5 is included on a range between 4 and 6%. Side picture: MDS system separately installed in a independent building.

Operation of the MDS System

The MDS works in the following way: Starting the system the holed belts stay stopped until the manure, unloaded from the batteries, reaches, through the conveyors, the distributor. The weight of the accumulated manure on the distributor gives the signal to the MDS to start up through the sensor of minimum weight. In the moment in which the manure in the distributor begins to exceed, the maximum weight sensor stops the conveyors and the belts of the batteries up to that the excess is not distributed. Once the manure in excess is distributed on the holed belt the entire cycle starts again.

The fresh manure is offloaded onto a distributor which spreads it uniformly onto the perforated belt. The perforation of the belts allow the air to go through the manure.

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Detail of perforated belt to allow air passing through the manure.

The number of tiers and their length is decided based on the number of birds in the shed. The manure is dried by the air coming from the shed.

At the end of the process the dry manure is unloaded onto a cross belt. The duration of the drying process depends on the starting humidity of manure, on the humidity and volume of the air used and the frequency of the clearing operations.

Advantages of the MDS system:

• Low costs for energy and no heating installations
• Drastic reduction of presence of ammonia (up to 95%)
• No need to dry the manure in the battery
• Low residual water contempt, up to a minimum of 15%
• Low costs for the installation
• Saleability of the final product thanks to a low weight and volume.

KAS Eco Cage Drying System

The KAS system for manure drying in cages “ECO” type has been conceived to dry the manure onto the manure belts: The air mixed between inside and outside is sent to the aeration ducts placed between or under the cage floors. The KAS machine allows to both dry the manure while contributing to the shed’s internal conditions in low external temperature conditions.

KAS System Operation

The KAS systems are made in different sizes to be adaptable to the large installations and different climatic conditions. From the smallest model KAS 045 with 6.000 m3/H capacity to the KAS 700 with 70.000 m3/h capacity. All models are designed to mix the internal and external air through motorized automatic shutters which operated by a computer ensure the mix as to avoid condensation on the ducts inside.

To get the best results the KAS machines are provided of filters to avoid the dirt inside the pipes and to get the best conditions of sanitary prophylaxis inside the poultry installation. The filters are of easy cleaning. Some manometers allow to verify the state of cleaning of the filters reducing the number of inspections.

The design of the external air inlets avoids unwanted intrusions. They are protected from the atmospheric agents. The generous dimensions permits to reduce the consumption of electric energy.

LAS Layer Cage Eco Drying System

The LAS manure drying system for layer cages “ECO” type has been designed to dry the manure in an simple and economical way. The air is sent to manure ducts placed between or under the cage floors on each tier. The LAS machine recycles the internal air and sends it to the manure ducts thus drying the manure on the belts.

System Operation

The LAS are made in models of various capacity to suit different length and number of rows. It is thanks to the standardization that FACCO has been able to combine efficiency and low investment cost.

LAS Heating Systems

This system has been successfully utilized in rearing sheds to send hot air to the rearing area, thus obtaining great temperature uniformity and consequently cost savings.