Canadian hemp silencer
In response to repeated requests from the Canadian government commission responsible for compliance with occupational safety and health standards (Commissiondesnormes, del'équité, delasantéetdelasécuritédutravail) company management KN Equipementsbylo decided to take part in minimizing the problem of high intensity acoustic loads that arise during operation of underground ventilation systems.
According to the established standards in Canada, the maximum noise exposure limit of working on the human body for 16 hours should not exceed 85 decibels. According to the Director General KN Equipements Jean-Daniel Nieminen (Jean-DanielNieminen) with application developed by silencer on hemp basis, produced by industrial fan noise intensity can reach 130 decibels, and the know-how "extinguish" them to the position 85.
In addition to the above properties of the effective noise reduction developed by the Canadian company material inherently has a plant material that allows not emit carbon dioxide (as in the case of synthetic analogues of production) into the atmosphere and conserve CO2 in the final product. In addition, mineral wool, generally used as sound insulating material loses its effectiveness when wet more than 2%. The same limit for hemp silencer is 40%. Since all underground facilities have an increased level of humidity, this criterion is an advantage hemp Silencing material.
Despite the huge number of advantages, a number of issues may affect the implementation of know-how on a commercial scale, the most important of which is the price. Hemp fiber is of appropriate quality at the moment in the Canadian market is four times more expensive than the raw materials from which mineral silencers are made. However, according to Mr. Nieminen, silencer is not a major component of underground fans, so do not significantly affect the cost of the final product.
According to the inventors hemp silencer, namely its use carries a long-term environmental benefits than compensated by including a higher sales price of the material. The main feature of the material developed by the Canadians in that it consists of only a technical hemp and lime. Since both components are environmentally friendly raw materials, after the end of the life cycle of hemp silencer, it can be used as organic fertilizer on conventional farmland.
According to Jean-Daniel Nieminen "The company is the only manufacturer of mine fans in Quebec and one of the two firms that specialize in this industry in Canada. The developed know-how helps to improve noise reduction quality standards not only in the field of mining equipment, but also, for example, in the construction industry. To introduce us, we plan developed technology in the Canadian province of Quebec, Ontario and then Mexico, where underground mining equipment market in the region in the coming years will be to maintain the trend of rapid growth. In the future, the technology developed by the company you plan to use on the market for ventilation equipment mine in West Africa. "
Comment of the Association "Ukrainian industrial hemp"
Founded in 1959 in the suburbs of Rouyn-Noranda (Quebec, Canada) company KN Equipements specializes in the manufacture and sale of mining equipment.
Information taken from the site http://tku.org.ua