The frequency of cleaning really depends on the stored material and frequency of use. A flour silo that is regularly filled and emptied, or has flour returned from the plant to the silo frequently can suffer from condensation, particularly if the silo is externally located and not insulated. This condensation will cause flour to stick to the roof and top of the walls leaving ideal conditions for mould to grow or insects to breed. In extreme cases this material can become very thick in a short space of time and can lead to contamination of the stored material. In these cases a dry cleaning method is not sufficient to remove the debris, thus a wet clean is the only option. We have found that flour silos that do not suffer with condensation can be cleaned once or twice a year, but where mould is an issue this should be done every three months. We would also suggest that measures be taken to minimise the condensation, either by insulating the silo or not returning flour and looking at an alternative of the day bin within the building.
Agora Services offer a complete silo cleaning service for square and round silos, bins, hoppers, filters, tanks and ancillary equipment (including handling equipment). Our staff are trained in confined space entry procedures, safe use of equipment and are fully conversant with health and safety requirements. Team members receive additional training to use a variety of specialist tools including (where required) gas monitoring equipment, escape sets, working B.A., rescue procedures, emergency first aid, oxygen resuscitation and CPR techniques, aerial platform work, forklift driving etc. Should additional certification/training be required to meet a clients stipulation this is undertaken before on site works commence.
Silo entry is gained only by the use of a full working man riding winch system, Agora have two types of winch system. Most situations we would use a Proman Digital winch and tripod. however, where space does not allow for this we also have a Didsbury Deco 2000 winch. Our operative sits in a boatswain's chair attached to the winch, and for fall arrest wears a safety harness attached to a separate lifeline.
Standard cleaning operations may be undertaken on either a schedule basis or alternatively 'as and when' required. Where infestation may be present we are happy to work in conjunction with pest control operatives.
On completion of the work a full written report outlining our findings, action taken, and any recommendations will be sent to clients for their records. Method statements and risk assessments can be supplied prior to the commencement of work.