South African mining technology for conveyance chairing & impact energy absorption.  
 
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technogrid®
Energy Absorption

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Technogrid GALLERY Technogrid DATA SHEET Technogrid COUNTERWEIGHT ARRESTING
  Technogrid OVERWIND IMPACT ARRESTING

 

  • WIDE ENERGY RANGE: 2kJ to 5000kJ+
  • HIGH VELOCITY IMPACTS: 120kph
  • Controlled deceleration
  • Predicted endforces
  • Maintenance free
  • Easy to install
  • Cost Effective

    The Technogrid® is a strain energy absorption device which absorbs the kinetic, or potential energy, of a moving object by deforming a metal grid of known design and characteristics through a stroke deformation of predicted value.

    TheTechnogrid® is a series of multi bar units that are connected in a staggered grid shape. On impact, the grid bars will yield and deform under double curvature bending. The yielding of the bars is what allows the units to "open up" and stroke, and it is the strain hardening of the material that absorbs the impact energy.

    For larger and more specific energy requirements, the Technogrid® can easily be calculated and designed to suit the application. Safe deceleration and high end forces can be controlled for a wide range of energies. The optimum configuration of the units can be achieved by combining the grids in series or parallel to suit each individual application.
Close-up of Technogrid®


Technogrid before impact

Technogrid after design energy impact

Technogrid after more than design energy impact
 
The Technogrid can absorb any impact as long as the crash/catch framework is designed to put the Technogrid® into tension. As illustrated below, various examples of crash/catch framework designs are shown and they range from simple hooks to more complicated compression legs to absorb the energy granulation tank explosions.


TECHNOGRID APPLICATIONS

  • Conveyor belt counter weights
  • Station stoppers
  • Vertical shaft over-wind protection (see diagram)
  • Vertical shaft under-wind protection (see diagram)
  • Incline shaft protection
  • Jack catch post
 
 

Decline arresting with catch frame and Technogrid®


Arresting hook



Technogrid® installation used for arresting a ship loader (blown by wind). Manufactured from stainless steel to withstand marine corrosion.

For larger energy requirements multiple units can be added in parallel (2 units - double the end force). Multiple units can be added in series (2 units - double the stroke)


TECHNOPOST STATION STOPPER

Technopost Options:

  • 120kJ Technopost
  • 300kJ Technopost
  • 120kJ Short Technopost
  • 120/300kJ Raised Post Technopost





 

120kJ Technopost impact post in up position to arrest rolling stock before falling down a vertical mine shaft.
Close up of the impact post in the lowered position.

Technopost after impact during actual tests.
Loco has not derailed after impact.
Technogrid GALLERY Technogrid DATA SHEET Technogrid COUNTERWEIGHT ARRESTING
  Technogrid OVERWIND IMPACT ARRESTING
Tel: +27 11 974 1004 ::: Email: info@horne.co.za ::: www.horne.co.za