Archive for the ‘Uncategorized’ Category

EFFICIENT STEAMING SYSTEM FOR STRAWBERRY CULTIVATION IN BANK-ROWS DEVELOPED

Friday, September 15th, 2017

A new steaming system by the company MSD (Möschle-Seifert-Dämpftechnik) saved over 50% of energy in heating oil savings on the 11th of September, 2017, near Bruchsal, Germany. The big advantage lies in stripe-steaming with spike-covers. This way, only the planting area that is relevant for cultivation is treated with superheated steam. Using the spike-covers, a steam depth penetration of a little more than 30cm in the dam-base was achieved.

The system is designed as a semi-automatic solution. The spike-covers for sandwich-steaming are mounted to a hydraulic, lift- and lowerable carrier vehicle, which also has the steam generator installed. The result is a compact steaming unit, that can process three bank-rows at the same time, 30-40cm deep. The steaming time is dependent on the efficiency of the steam generator as well as the size of the covers and the desired steaming depth.

Semi-automatic steaming system for bank-crops in particular. STRAWBERRIES

Semi-automatic steaming system for bank-crops in particular. STRAWBERRIES

Video available on Youtube: https://youtu.be/huE-L2H-FhY

In any case, this solution facilitates highly efficient energy consumption. With a steam consumption of under 40kg of steam per cubic meter of earth during testing, this sandwich-steaming system with spike-covers can minimize heating oil consumption, converted to square meters, under 0,4 liters by square meter at a steam depth of a little more than 30 cm.

Three bank-rows are sanitized using the sandwich-steaming-process with spike covers at the same time using superheated steam

Three bank-rows are sanitized using the sandwich-steaming-process with spike covers at the same time using superheated steam

After steaming, the rows can be planted on the next day. The district administration of Karlsruhe will observe and monitor the growth and gain of the strawberry culture over the next three years. Results as good as from last years steaming tests are expected. We already reported on this: Click here for the article – An interview about the positive effects of superheated steam with strawberry cultures is found here.

NEW SURFACE STEAM PROCEDURE IN TESTING

Monday, July 3rd, 2017

Especially for the requirements of the strawberry industry, with the partner companies MSD GmbH, the Marten Barel Consultancy BV of the Netherlands, in cooperation with the Norwegian engineering office, an additional steaming system was birthed.

The new steaming system runs continuously. Using injectors, the steam is introduced at a depth of 10 to 30cm. At the same time air is siphoned out of the ground to achieve a quick penetration with the steam.

New steam engine with extraction system and boiler S 2000 by the company MSD

New steam engine with extraction system and boiler S 2000 by the company MSD

The test run took place at the strawberry farm Osterloh, between Bremen and Osnabrück, in the middle of June. Here, superheated steam using the steam boiler type S 2000 by MSD was generated and used. The new steaming system comes very close to the energy efficiency and speed of cover-steaming. Heating-oil consumption per square meter at a steam depth of 10cm is approximately 0,35liters. It is remarkable that the fuel-consumption per additional 10cm of depth is linear and doesn’t increase, according to first evaluations. At a steam depth of 10cm the machine has an area output of approximately 430 square meters.

Using a trailing tow-foil the temperature in the ground is kept high for as long as possible.

Using a trailing tow-foil the temperature in the ground is kept high for as long as possible.

At the Interspa Praxis in September an optimized version of the steaming device is expected to be presented. Additionally, the audience will have the possibility to inspect steaming results, in particular the effect on plant growth and gain of steamed areas.

MSD OPTIMIZES CONTAINER STEAMING PROCESS FOR SANITATION OF LARGE QUANTITIES OF EARTH

Sunday, May 14th, 2017

Together with the regional council of Freiburg the MSD GmbH tested a number of procedures for the steaming of large amounts of Japanese Knotweed contaminated earth at various locations near the Upper Rhine.

The goal of the development is a procedure that, in the shortest possible timespan, with the lowest possible personnel costs, can sanitize large amounts of earth from the introduced neophyte completely. The total costs should be significantly lower than 30 Euro/m³. For this, the appropriate heavy technology was used.

Steaming with superheated steam in specially equipped tipping trailers

Steaming with superheated steam in specially equipped tipping trailers

In this context, in the first step specially equipped tipping trailers are filled and alternatingly steamed using the low pressure steam boiler Type S 2000 of the company MSD (Möschle-Seifert-Dämpftechnik). The steaming procedure was done with an additionally fitted vacuuming-extraction system so that the steam can penetrate the contaminated ground more easily.

The second step used roll-off containers instead of tipping trailers, which were fitted with the appropriate steam distribution systems. In these, special sliding floors were used as well as the vacuuming-system. The hygienization goal was always reached. The soil was free of Japanese Knotweed after the steaming process.

Specialized roll-off containers with steam boiler S 2000 by MSD

Specialized roll-off containers with steam boiler S 2000 by MSD

On basis of  this way gained experiences a final, further optimized steaming system will emerge in summer, surpassing the target of 20m³ per hour per 2 tons of used steam at minimal personnel costs. On this basis, in a period of 6 months up to 10.0000m³ of Japanese Knotweed contaminated soil will be sanitized.

New Steaming Technology is Successfully Tested for Substrates

Tuesday, March 14th, 2017

At the beginning of March the new substrate steaming technology was tested at a flower farm located near the German-Dutch border. A special challenge of this task was to avoid shifting of very light pumice-like clay substrate in special trays for planting flowers. Moreover, irrigation hoses installed on the bottoms of the planting trays shall not directly be exposed to temperatures exceeding 110°C.

Laying the steam hose and covering with a steaming sheet.

Laying the steam hose and covering with a steaming sheet.

This solution was developed and put into a trial operation by a service team of Marten Barel Consultancy B.V., a well-known consulting company for hot steam applications.

The flower farm, which has successfully tested the new technology, specializes in high quality crops, especially amaryllis.

After the culture is harvested and all plants are pulled out from the substrate, a special steam hose is laid on the substrate along the longitudinal axis of the plant tray. The steam hose is extremely steam-permeable and, thereby, uniformly gives off the stream along the entire plant tray. The plant tray and the hose laid in the middle of it are covered with a heat-resistant steam foil whose edges are weighted with appropriate weighting hoses.

Laying the steam hose and covering with a steaming sheet.

Laying the steam hose and covering with a steaming sheet.

As soon as the steam boiler is connected and started, the substrate starts to be gently steamed.  Since the steam is slowly guided through the clay substrate and condensed in it, the irrigation hoses installed at the bottom of the plant tray are not exposed to excessive heat. The steaming time is very short. In already 30 minutes you can sanitise a plant tray of up to 50m length when only using  ~30-40kg steam per cubic metre. As the substrate shall not be moved or shifted, additional labour cost is minimal.

NEW SEMI-AUTOMATIC STEAMING MACHINE IN OPERATION

Monday, February 20th, 2017

On the 15th of February 2017 a large seed breeding business focused on oilseed rape crops put the new semi-automatic steaming machine from MSD GmbH into operation.

The complete tractor-towed system has a steaming capacity of 800kg per hour. A special feature of its design is a large boom hood of more than 7 m length and a total area of approx. 18 sq. m. The system allows treatment of 180 – 200 sq. m soil surface per hour.

Semi-automatic steaming machine MSDA-800 towed by a tractor

Semi-automatic steaming machine MSDA-800 towed by a tractor

Video available on Youtube: https://www.youtube.com/watch?v=uKMkzokNgF8

With this steaming system, propagation areas can be kept clean, in particular from the seeds of previous breeding strains, without using chemicals.  In this way, several hectares will be annually prepared for breeding of new seed varieties.

Semi-automatic steaming machine with a 7m long boom steaming hood

Semi-automatic steaming machine with a 7m long boom steaming hood

The system was directly commissioned by its manufacturer MSD GmbH in a day. From the very first day, the system was effectively operated. Its design is largely autonomous. In arranged tanks, fuel oil level supply is enough for a full day of operation. The water is continuously supplied through a hose pipe. During the operation, the minimum water pressure is maintained by an installed pump system. The semi-automatic machine also has its own water treatment unit to ensure optimal water hardness.

SANDWICH-TYPE DAMPING CONQUERS NEW ZEALAND

Friday, February 3rd, 2017

A leading herb farm near Cambridge ordered a sandwich-type steam system from MSD GmbH  and started it at the beginning of February. The system is equipped with a large steam boiler of type S 1350. So more than 42 sq. m are covered  with up to four steam hoods. All steam hoods are equipped with special hollow pins that make it possible to reach a steaming depth of up to 25 cm below the steam hoods in max. 8 minutes.

Spiked steaming hoods in a tunnel

Spiked steaming hoods in a tunnel

The steam hoods are raised and lowered by a hydraulic system. A special winch pulls the raised steaming hoods over  the surface. Using this system, the farm can sanitise280 sq. m per hour and completely liberate the treated surface it from weeds, weed seeds, pests,  soil diseases and fatigue.

Hollow pins under the steam hood with a length of up to 20cm

Hollow pins under the steam hood with a length of up to 20cm

In sandwich-type steaming, soil preparation is still a key factor of success for good steaming results. The surface must not be too moist. It shall be well loosened to the desired depth of steaming effect, at least.

For more information on sandwich-type steaming, please visit:
http://www.moeschle.de/en/sandwich-type-steaming#

THE SWITCH FROM SHEET STEAMING TO STEAMING HOOD SAVES 50% HEATING OIL

Tuesday, October 11th, 2016

Yet another German horticultural business has recently made the switch from sheet steaming to sandwich-type steaming using a steaming hood, and the results are impressive.

The business – which is based near Stuttgart in the Federal state of Baden-Württemberg – had been operating successfully for more than 10 years using sheet steaming, and wanted to take a step forwards towards greater energy efficiency.

Raised steaming hood with pikes for sandwich-type steaming

Raised steaming hood with pikes for sandwich-type steaming

Under the guidance of MSD GmbH the business took the step and, instead of procuring a new sheet, it opted for two steaming hoods used in sandwich-type steaming. Instead of guiding the steam under a sheet which is weighted at the edges, the sandwich-type steaming method utilises a special steaming hood equipped with spikes, which drive the steam into the soil to a depth of up to 25cm. The business made the decision to initially operate the hood manually. This involves a single operator lifting and lowering the hood using a lever construction, and moving it while positioned on wide rollers.

 Manually moveable steaming hood with masking foil

Manually moveable steaming hood with masking foil

The result was worth it. The savings generated in comparison to sheet steaming were close to 50%. Instead of almost 6,000kg of steam, the horticultural business only requires just over 3,000kg of steam per greenhouse with a surface area of 260m² and a steaming depth of approx. 25cm, for a target temperature of more than 80°C. This equates to a very cost-effective steam requirement of approx. 12 kg per m². Consequently, energy costs when measured in today’s price for heating oil are below EUR 0.5 per m².

NEW SEMI-AUTOMATIC STEAMING SYSTEM IN OPERATION WITH THE LARGEST ORGANIC PRODUCER OF SALAD LEAVES

Friday, August 19th, 2016

As a cheaper alternative to the fully automatic steaming machine, which is now in operation as the latest model MSDZ-1 as of July this year, the leading steam specialist MSD has now also developed a semi-automatic machine and has delivered it on 18.08.2016 near Frankfurt.

Semi-automatic steaming machine MDS 600 from MSD GmbH, Durbach

Semi-automatic steaming machine MSDA 600 from MSD GmbH, Durbach

In contrast to the fully automatic machine, which operates in self-propulsion over the field without a driver, the semi-automatic, with the complete assembly including the appropriate high-performance steam boiler, is drawn over the beds by a towing vehicle. The system operates, however, in a similarly automatic way. In the current version of the machine, three beds can be steamed simultaneously with one hood. The three hoods are lifted and lowered hydraulically.

Semi-automatic steaming machine with 12m² steaming hoods

Semi-automatic steaming machine with 12m² steaming hoods

A video on Youtube can be watched here: VIDEO semi-automatic steam robot, 2016

The semi-automatic steam machine is available from MSD GmbH, Durbach, in two sizes. The smaller version has a steam performance of up to 600kg per hour and can completely free a surface of up to 12m² of weeds in around 5 minutes with a steam depth of 4-7cm. The larger version of the semi-automatic has a steam performance of up to 800kg per hour and can completely disinfect a surface of up to 18m² in the same time and to the same depth.

The semi-automatic steam machine carries all the fuel oil it needs with it in a tank and supplies its own electricity via a hydraulic generator for steering and for the operation of the high-performance burner. Further information can be obtained directly from the MSD company: www.moeschle.de

WORLD DEBUT: NEW FULLY AUTOMATIC STEAM ROBOT IN OPERATION FROM JULY

Thursday, July 21st, 2016

The MSD company has developed a new version of the steam mobile unit together with specialist machine manufacturer Josef Zeyer Agrarsysteme in Neresheim. The new edition came about subsequent to a direct enquiry from one our largest local producers of salad leaves. This new fully automatic steam machine sets new standards. In contrast to the previous model, which was produced by MSD in cooperation with the Swiss company Bärtschi-Fobro, this new field robot MSDZ-1 fulfils the latest requirements, in particular in the areas of approach area monitoring and tracking control.

Fully automatic steam machine MSDZ-1, developed by the MSD company in cooperation with the J. Zeyer company in Neresheim

Fully automatic steam machine MSDZ-1, developed by the MSD company in cooperation with the J. Zeyer company in Neresheim

In addition to the latest control technology, the steam efficiency of the system has been increased again by almost 40% on the previous model so that, under optimal conditions, surfaces of much more than 30 hectares can be completely freed of weeds annually.

Fully automatic steam machine in test operation for open land application in northern Germany

Fully automatic steam machine in test operation for open land application in northern Germany

The first new fully automatic steam machine is currently in test operation in areas in northern Germany in order to adjust it optimally to the current conditions. The machine will then be able to steam three rows of beds simultaneously, completely independently and without a driver, lifting, moving and then lowering the hoods again for this purpose until the end of the row of beds is reached. When the robot has reached the end of the row, it will send a signal indicating that it can now be moved by a driver. During the entire operation, however, the machine can also be operated via remote control.

Detailed information on price and performance of the new fully automatic steam machine can be obtained directly from the MSD company, especially online at www.moeschle.de.

A video on Youtube can be watched here: VIDEO fully-automatic steam robot, 2016

EFFECTIVE CONTROL OF TIGER NUT SEDGE WITH HOT STEAM

Tuesday, June 21st, 2016

On 17.06.2016, the research group Extension Gemüsebau of the Swiss Agroscope Institut presented several methods for combatting tiger nut sedge. One of the most effective methods among these is steaming.

Three different steaming methods were successfully tested: hood steaming, sheet steaming and pile steaming via steam conveyor in cooperation with several partners, including MSD GmbH, Durbach.

Little steaming hood set on open field

Little steaming hood set on open field

In the two surface steaming processes (hood and sheet), the tiger nuts are completely killed off to a depth of around 25cm, which translates as an effective rate of around 95% over the entire area. After steaming, the steam-treated surface areas were observed. Growth from deeper lying tiger nuts, which the steam was not able to reach, can subsequently be killed off easily by mechanical or chemical means. In the case of pile steaming, e.g. via steam conveyor, the soil that is contaminated with tiger nuts is lifted completely and treated with steam.

Tiger nut sedge can be killed off completely with a soil temperature of 75°C. It is recommended that heat is maintained for at least 15 minutes in order to achieve a clean result.

Sheet steaming against neophytes at Sinzheim

Sheet steaming against neophytes at Sinzheim

More information can be found in the “Mit Dampf erste Befallstellen tilgen” (eradicate first infestations with steam) leaflet on www.agroscope.ch from July 2017.