Grain silo Halberstadt
| Grain silo Halberstadt | |
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| Data | |
| place | Halberstadt , Harz district , Saxony-Anhalt , Germany |
| Client | VEB Speicherbau Erfurt |
| Construction year | 1972-1985 |
| height | 58 m |
| Floor space | 7700 m² |
| Coordinates | 51 ° 52 '40.8 " N , 11 ° 4' 22.3" E |
The Halberstadt grain silo , also known as Großsilo Halberstadt , is a grain silo built between 1972 and 1985 with a storage capacity of around 75,000 tons of grain. Today it belongs to the Magdeburger Getreide GmbH based in Vahldorf near Magdeburg .
Planning and construction
Towards the end of the 1960s, in order to rationalize the production and storage of grain in the Harz foreland, a location was sought for the construction of a grain silo based on a standardized construction. Different locations came into question, including an arable land near Halberstadt and a location between Osterwieck and Badersleben . Due to the proximity to the inner-German border, however, the planning at Osterwieck was soon abandoned and Halberstadt was announced as the favored building site.
The construction area, which is located in Halberstadt at the exit to Quedlinburg , was excavated next to the existing warehouses of VEB Getreidewirtschaft Magdeburg. For this purpose, on the one hand the area of the silo with the dimensions 110 × 70 m as well as further pits were excavated, on which further warehouses, garages, workshops and social rooms were later built. In addition, blasting was carried out to a depth of 15 m for the acceptance building.
The grain silo itself stands on a 110 × 70 m large concrete slab, which is anchored up to 10 m deep in the ground on granite . After the floor slab had been poured, the silo cells and the machine houses were cast in steel reinforcement with wooden cladding. Originally, 36 silo cells were planned in two cell wings, but during the construction it was decided to build two additional cell wings with 18 cells each. The construction was carried out by numerous local companies, the main developer was VEB Speicherbau Erfurt.
The shell of the grain silo was completed in 1975/76. Due to difficulties in obtaining materials and financing problems, a construction freeze was imposed in 1976, which was maintained until 1982; Only then did the completion of the grain silo begin with the installation of the conveyor technology and control systems.
Furthermore, a separate marshalling yard and a rail loading facility were built. The grain silo also had its own shunting locomotives.
The first month of operation was November 1984. Numerous leaders from the Magdeburg district as well as the then Agriculture Minister Bruno Lietz were present at the opening . The silo was first fully occupied for the 1985 harvest.
First years of operation
In the years after commissioning, the system was operated in three shifts 365 days a year. At peak times, over 200 people were employed on the site. There were in-house electricians, carpenters, locksmiths, cleaning staff, etc. There was also a modern fleet of IFA W40 and W50 trailers and ZT-300 and ZT-303 tractors. Throughput volumes of over 100,000 tons of grain per year as well as the loading of block trains throughout the GDR testify to the modern and progressive technology of the facility.
Structure, technology and control
The entire conveyor technology achieves a conveying capacity of 100 t / h. Trough chain conveyors (TKF) are used as vertical conveyors , bucket elevators for horizontal movement . The main bucket elevators reach a height of up to 58 m, the grain - coming from the receiving building by TKF, is first transported up to a height of 58 m and then transported via pipes (250 mm diameter) and further TKF into the silo cells. There are six assumptions, two of which are railway assumptions with a capacity of 80 tons. There are two engine houses, the large and the small. The bucket elevators are located in them.
The silo cells reach a height of 40 m and have a storage capacity of 900 to 1000 tons of wheat . They are arranged in cell sections; Each cell wing consists of 18 "large" and 10 "small" silo cells, so-called gusset cells, which are located in the cavities between the "large" silo cells. A gusset cell can hold around 230 to 250 tons of grain. There are 102 silo cells in total. Cell wing 1 and 3 can be ventilated by cooling devices, cell wing 2 is currently being converted for ventilation.
For loading, the grain is removed from under the silo cells via TKF, transported upwards again in a bucket elevator and then moved for loading. There are three loading points, two on the long sides of the building and one in the tramline between the cell wings. Furthermore, ten silo cells offer the possibility of loading directly onto trucks via the loading pipe. On the south side of the building there is a drying system built by Bühler in 2011, which is fired with town gas and can achieve an hourly output of up to 60 tons.
The entire system is controlled from the control room, in which the conveyor technology is operated via a flow diagram and start-destination system. The switchboard is over ten meters long.
Situation today
Today, after several changes of operator after the fall of the Wall, the grain silo belongs to Magdeburger Getreide GmbH. There is a brisk turnover of goods, both farmers from the region and international customers load and unload their vehicles, which are weighed on the vehicle scales. Rail loading ceased in 2007. In addition, all the necessary quality assurance analyzes are carried out in the weighing building.
During the harvest, storage quantities of over 4000 tons per day were already achieved. Be accepted wheat , barley , rye , oats , maize , triticale , sunflower seeds , spelled and other types of fruit. Rapeseed is stored in warehouses in the immediate vicinity of the grain silo. Mineral fertilizers and seeds are also sold.
Of the once more than 200 employees, today only three people are required for normal operation of the plant. In addition, apprentices are trained as warehouse logistics specialists.
Trivia
- During the construction of the silo, a worker illegally lowered himself into a silo cell using a "concrete bomb" suspended from a crane. During the trip, the power went out, so the worker had to wait several hours before he could be rescued.
- When the shell of the silo was completed, there was great turmoil among the local population because they did not know what the purpose of the construction was. It was widely believed that these were missile launchers.
- Since part of the conveyor technology was already installed during the eight-year construction stop , the chains of the trough chain conveyors were so rusted that they had to be broken out in pieces. After that, several employees were busy for months knocking the rust off the chains and loosening them. Some of these chains are still in use today.
- The large concrete surfaces around the facility can be rented for all kinds of events.
- When the weather is good, you can see both the Brocken and Magdeburg from the roof of the large machine house .
Individual evidence
- ^ Locations of Magdeburger Getreide GmbH at http://md-getreide.de/standorte.php
- ↑ Article about the opening of the large silo Halberstadt in the specialist magazine Getreidewirtschaft, issue 12/1985
- ↑ Treatise on the handling volume of the large silo Halberstadt in the specialist magazine Getreidewirtschaft, issue 12/1987
- ^ Taken from the original plan "72kT Silobau Halberstadt", Erfurt, 1970.
- ↑ Product information about Bühler drying systems at http://www.buhlergroup.com/global/de/downloads/Brochure_Drying_Systems_DE_001.pdf
- ↑ Archived copy ( Memento of the original dated December 29, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Archived copy ( Memento of the original dated December 29, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Archived copy ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
