Silos Metálicos Zaragoza S.L.U

Corrugated Steel Sheet Hopper Silos

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SIMEZA corrugated steel sheet Hopper Silos are designed for agricultural and industrial plants such as; drying plants, seed processing plants, storage plants, daily bins, dosing bins, bulk outload bins, industrial plants continuously fed with cereals such as flour mills, feed mills, rice mills, oil mills, and biofuel facilities.

They are used for the short/medium term storage of cereals, maize, soya, paddy, oil seeds and any other granulated free flowing materials.

They can be designed according to either ASAE/ANSI American or Euro-Code European norms as per tender specifications or client choice and are manufactured to withstand stress caused by continuous use, extreme temperatures, high winds, heavy snow and seismic loads. They also offer greater resistance to corrosion through thicker galvanization on the steel sheets.

SIMEZA Hopper Silos cover a wide range of models from 3.1 meters to 12.2 meters in diameter and from 14 to 2.400 m³ capacity.

ROOF

  1. 30° conical shape
  2. The roof panels are manufactured with S350 - Z600 high tensile steel sheets or can be pre-painted galvanized steel sheet upon request.
  3. The static calculation is performed by the finite element method for:
    • Each individual local wind, snow and seismic loads.
    • Additional heavy duty peak loads.
    • Temperature probe loads.
  4. The roof is a self-supporting structure.
  5. Roof panels are assembled with galvanized steel bolts and plastic seal washers. Stainless steel bolts can be delivered upon request.
  6. The roof is equipped with:
    • A) d = 500 mm inlet flange
    • B) Air vents allowing for the circulation of the existing air in the silos with the incoming grain.
    • C) Inspection hatch, located at the silo eave which allows for:
      • The control of the stored product from a visual point of view.
      • Taking samples.
      • Maintenance of the maximum level indicator.
      • Entrance - only in case of emergency when the silo is full.
  7. This inspection hatch is equipped with a rest platform which can be reached either by a ladder fixed on the silo wall starting from ground level or by a drop down ladder from the catwalk fixed to a relevant post.

CYLINDER

  1. The wall panels are manufactured with S350 - Z 600 hot dip Sendzimir galvanized high tensile steel sheets which can be painted upon request.
  2. The static calculation is performed by the finite element method for each individual grain density as well as any local wind, snow and seismic loads.
  3. Wall sheet:
    • A) Shape is 104 mm corrugation which reduces friction and product residues.
    • B) Assembly by 2 or 3 rows of bolts according to the thickness and acting loads.
  4. Vertical stiffener:
    • A) Standard omega section and junction.
    • B) Reinforced wide omega section and junction.
  5. Wind rings, if necessary, according to the static calculation.

HOPPER

  1. 45° with d = 320 mm standard outlet flange and 800 mm outlet height.
  2. 60° with:
    • A) d = 1000 mm standard outlet flange and 1250 mm outlet height
    • B) d = 500 mm standard outlet flange and 800 mm outlet height
    • C) 1250mm x 400mm rectangular outlet flange and 800mm outlet height

SUPPORTING STRUCTURE

  1. Frame solution, consisting of:
    • A) Hip ring, from which the hopper directly hangs as a conical membrane.
    • B) Set of columns as an extension of the vertical stiffeners with wind brace.
    • C) Hot dip galvanized warm rolled H profile for the hip ring and columns, and L profile for the wind brace.
  2. Skirt solution, consisting of:
    • A) Extended cylindrical wall of the silo itself, reinforced with double stiffener.
    • B) Some additional circular supports for the hopper.
    • C) A system allowing for the continuous support of the hopper without hip ring.

INSPECTION DOORS

Hopper silos are equipped with a flanged access door located in the lower part of the hopper which can be reached by a short mobile ladder directly from the ground level.

BOLTING

  1. Roof panels are assembled with galvanized steel bolts and plastic seal washers. Stainless steel bolts can be delivered upon request.
  2. Wall sheets are assembled by M10 high tensile steel 8.8 or 10.9 quality hot dip galvanized bolts with double steel and plastic seal washers.
  3. Wall sheets are assembled by 2 or 3 rows of bolts, according to the thickness and acting loads.

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