ONE MORE STEAMING SYSTEM WITH SPIKED HOOD FOR SOUTH AFRICA

In the first half of this year, one of well-known floriculture farms near Johannesburg decided to use a new steaming system to treat soil with steam on its 40 hectares. This company was advised by a well-reputed expert Mr Marten Barel.

For many years the company has been using a stationary coal-fired steaming system. Now this system is completely revised and replaced by a mobile steaming system from MSD Corp. (Durbach, Germany). The new state-of-the-art liquid-fuel steam boiler generates superheated steam at almost 96% efficiency factor. Due to this fact alone, the energy consumption was reduced to 0.4 l heating oil per square metre.

Spiked steaming hood on rollers with hydraulic lifting device from MSD AG (Durbach, Germany)
Spiked steaming hood on rollers with hydraulic lifting device from MSD Corp. (Durbach, Germany)

In this method, the hot steam is transferred into the soil by a very efficient steaming system. In sandwich-type steaming, the steam is injected by a spiked hood both at the surface and to 25 cm depth at the same time. The hood is a custom product. It can be automatically lifted and lowered by a hydraulic system. The system is towed on wheels through the greenhouse with a winch. Moreover, the steam boiler is placed on a low running gear allowing reduction of the total height just to 1.8 m.

Video for illustration of the spiked steaming hood and its operating principle (click here)

High-performance steaming boiler from MSD AG (Durbach, Germany) with low running gear allowing reduction of the total height by more than 40 cm.
High-performance steaming boiler from MSD Corp. (Durbach, Germany) with low running gear allowing reduction of the total height by more than 40 cm.

During the steaming, a temperature of 80°C is achieved in about 6-7 minutes. Such temperature is enough to sanitize the soil and to eliminate pathogens and weeds.

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