---
title: Air Cannons Increase Material Flow at Mine
description: Material blockages decrease productivity as trains aren't fully loaded & increase safety risks by putting operators in close proximity to hazards.
image: https://blog.martin-eng.com/hubfs/MineAirCannonSolution.jpg
---

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## Problem Solved Paper

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# Air Cannons Increase Material Flow at Mine

[Martin Engineering](https://blog.martin-eng.com/problem-solved-papers/author/martin-engineering)

 April 21 2023

[Material Flow Problems](https://blog.martin-eng.com/problem-solved-papers/tag/material-flow-problems)

### Problem

![MineAirCannonProblem](https://blog.martin-eng.com/hs-fs/hubfs/MineAirCannonProblem.jpg?width=450&height=306&name=MineAirCannonProblem.jpg)The Saraji mine identified inefficiencies in the loading process caused by coal blockages, resulting in delays to train loading times. These delays caused trains to exceed contract load times and depart with empty unloaded wagons. [This material blockage required repetitive operation](https://blog.martin-eng.com/webinar-jakarta-indonesia....12-hour-day) of the gates in order to cause vibration, which introduced additional fatigue in the pneumatic cylinders, gates, hinges, and structure. As an alternative method, an operator used a water lance to hose water inside the gate in an attempt to clear the blockage, which placed the operator at risk for manual handling and crushing injuries while handling the steel water lance.

### Solution

![MineAirCannonSolution](https://blog.martin-eng.com/hs-fs/hubfs/MineAirCannonSolution.jpg?width=450&height=337&name=MineAirCannonSolution.jpg)Martin Engineering Australia was contacted to examine the issue and offer a solution. The team recommended installing four [Martin® Hurricane Air Cannons](https://www.martin-eng.com/content/product/146/hurricane-air-cannon) with nozzles made of stainless steel to resist the aggressive environment. The valve technology provides double the force of previous models while using half the amount of air. It also fires only in response to a positive surge of air sent by a solenoid valve, eliminating the risk of an accidental discharge. The complete valve assembly can be removed in one easy step and there is no need to ever remove the tank from the vessel for service.

### Results

![MineAirCannonResult](https://blog.martin-eng.com/hs-fs/hubfs/MineAirCannonResult.jpg?width=450&height=338&name=MineAirCannonResult.jpg)Installing the air cannons has achieved the desired result of [increasing material flow](https://foundations.martin-eng.com/learning-center/learning-center/air-cannons) and avoiding costly delays to the train. The risk of injury to the operators has also been reduced, with operators no longer needing to clear blockages manually. At a conservative estimate, where the air cannons have been activated more than 4 times daily over a 3-month period, the operator would have needed to clear the blockage with the water lance or by manually operating the gates to cause banging and vibration 12 times over 3 months (48 times per year). Reducing this figure down to “0” has reduced the risk of personal injury, structural fatigue, and production losses.

[![Learn More About Solving Material Flow Problems](https://no-cache.hubspot.com/cta/default/5156573/5ac6258c-2c45-45ba-a716-85a1624de24b.png)](https://cta-redirect.hubspot.com/cta/redirect/5156573/5ac6258c-2c45-45ba-a716-85a1624de24b)

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