Bulk Bag Discharger Model T9 - For total dust containment.
A number of products handled in bulk bags are of a fine, powdery and invasive nature and total containment during unloading is necessary to prevent contamination of the local atmosphere and health and safety hazards. The problem is exacerbated where the product is volatile, toxic or presents an explosion risk. Spiroflow has developed the T9 bulk bag discharger for use where total dust containment is essential.
A sealing device inflates inside the bottom spout of the bag and seals it during the emptying process to eliminate the risk of dust emission.
It also operates in conjunction with an automatic spout stretching device to promote a smooth and cylindrical path for flow of material directly into a process vessel or integral conveyor.
This patented feature is of special value where products with poor flowing characteristics are being handled.
It is important to ensure total discharge of product from the bag when invasive powder is being unloaded in order to prevent the escape of material when the emptied bag is removed.
For this reason, the Model T9 has bag massagers at the corners of the bag as well as the base.
A patented pneumatic bag tensioner and an inner liner clamp prevents the possibility of creases being formed during unloading which can trap residual material.
Height adjustment for bags of different sizes is provided as well as a lifting frame locator for the correct alignment of the discharger with the vessel or other piece of equipment into which the material is being unloaded. This feature enhances containment of the product.
Special design features permit Cleaning in Place (CIP).
Basic operation:
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Bag is placed on discharger by hoist or fork lift truck. |
Spout is pulled through the discharge dish (closure bars open). |
With spout closure bars closed, bag is untied without release of contents. |
Bag spout located over inflation and tension device. |
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Spout closure bars opened to release product. |
Pneumatic stretching device actuated to provide smooth path for product through spout and into downstream vessel, valve or conveyor. |
Bag massagers at each corner assist flow and ensure total emptying. |
Pneumatic bag tensioner retains bag shape. |
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The static grounding system incorporated in the discharger constantly monitors the surface resistance of the bulk bag (Type C static conductive bag), and provides outputs in the form of visual indication of bag/earth status and interlock to filling/discharging machinery. |
Patented features:
- Sealing device for bottom spout.
- Automatic spout stretching.
- Assurance of complete product discharge.
- Variable height adjustment for different sizes of bag.
- Static grounding system with bulk bag resistance monitoring.
- Corner massagers.
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