Martin Engineering USA | martin-eng.com | 800.544.2947

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September, 2015

Enjoy a quick break and brush up on valuable (and some amusing) info from your material handling authority.

In this issue:

Martin Service Technician installing muliple Martin Air Cannons with new Jet Nozzle.

Avoiding confined space entry has eliminated much of the potential risk and shutdown time during nozzle changeouts.

Just for Fun
Didaskaleinophobia is the fear of going to school. Yes, it actually exists, and 2.4% of school-aged children are considered to have it, on an international level.

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Enhancing Air Cannon Performance
& Nozzle Design​

With the introduction of new positive-firing valves, air cannons have become safer in recent years.

The cannons respond to an air pressure surge delivered by a solenoid valve; in order for the cannon to fire, a positive signal must be received. Unlike negative pressure-firing designs, a cannon equipped with this new type of valve will not discharge accidentally in response to a drop in pressure, so an interruption in air supply or a broken line cannot trigger it.

Another advancement in nozzle technology over the last few years is a 360º retractable design that extends into the material stream only during the firing cycle to protect itself from extreme temperatures and abrasion. This innovative design solves two common industry problems: effectively dislodging accumulations in hard-to-reach areas without shutdown or manual labor, while significantly extending nozzle life. Further, the retractable nozzle can be serviced from outside the vessel, reducing service time and risk of injury.

3 images: air cannons on a cement tower; new jet nozzle and illustration of retractable nozzle.

Retractable nozzles extend only during
the firing cycle, protecting against damage
from extreme temperatures and abrasion.

Full Article

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Quick Tip

Dust Control

The escape of airborne dust from bulk material handling systems is a hazardous and costly problem.


Meet Martin

Shawn Hall - Shipping/Warhouse Clerk

Jimmy Cable
Product Field Display Specialist
8 years with Martin

How you might
interact with Jimmy:
Jimmy drives the Martin® Road Show Demo Trailer all over the country, to site visits, tradeshows, etc.,

Favorite thing about Martin:
The company itself. Martin is family-oriented and every employee - from the newest, entry-level position to the highest management - operates as "Team Martin."

Favorite thing about
driving the demo trailer:
Meeting new people in different regions. The demo trailer allows me to promote Martin, its services, and its products.

Something I want
customers to know:
​​I truly take pride in meeting and greeting customers. Demonstrating Martin's products shows the world Martin's credibility, professionalism, and dedication to one mission.....Problem Solved!


PROBLEM SOLVED

Orlando Utilities
Problems Addressed:
Dust, Spillage, Safety

Transfer Point system solves Spillage, Dust, and Safety issues.
Orlando Utilities Commission – Stanton Energy Center (SEC)... wanted to increase the safety aspect by limiting dust and spillage from one of its principal conveyors, engineers wanted to reduce airborne particles and eliminate a potential source of trips and falls. They also wanted to reduce clean-up and maintenance time, allowing critical manpower to be utilized elsewhere and improve plant efficiency. Additionally, preventing coal dust spillage would help minimize wear on rollers and other moving components, saving on replacement part costs and labor.

Continue reading...


Martin Extras

Martin Employees participate in the Neponset Picnic Days parade

Wellness Walks

Martin Engineering encourages a healthy & active lifestyle for its employees. This month's featured activity is Wellness Walks. All participants are rewarded with Wellness Tokens that can be spent on several wellness-approved items.



Expert Advice

Gary Swearingen
Product Specialist - Dust Control
31 years industry experience


FACT OR FICTION:
FOAM & DUST CONTROL

Fiction:​
Once the foam system is installed and operating, it will control the dust without needing many adjustments.

Fact:
While those operating a foam system might not have this false expectation, it is important to understand that in order to maintain good-quality foam, routine adjustments are required. Water quality, water pressure, and air pressure all affect the quality of the foam at the application point, and need to be monitored and adjusted.

Fiction:
You can see the foam being added to the material stream, ensuring the application is effective.

Fact:
While you may be able to see the foam being applied to the material stream, this does not ensure proper dust control. The proper application of a surfactant requires adequate mixing with the material. If the foam can be seen resting on top of the cargo, it has not been mixed into the material and the effectiveness of the foam should be questioned. There is a difference between applying foam to see foam and applying foam to control dust.

Fiction:​
As much as 3% moisture must be added to the material stream to control dust.

Fact: Surfactant blends have been developed to achieve effective results with minimal moisture addition. Surfactants are used to treat the water supply to increase the ability of dust particles to become attached to water droplets. Having a good surfactant that is applied at the right pressure and flow is critical. How and where to spray are also key to reducing moisture addition and increasing efficiency. Knowing what to spray on a particular application is the science, knowing how to spray is the art to a successful application.

For more information, contact Gary at 800-544-2947 extension 324.




MORE FROM F4

F4 refers to Foundations™ 4 - the 4th edition of Martin's book on improving belt conveyors and controlling fugitive material. We will break up the book into short, easy-to-read articles for your convenience.

LINEAR VIBRATORS

Linear vibrators activate the material inside a chute or bin by using heavy blows on the outside of the structure’s steel walls.



Hammering on the bin or chutewall leads to damage to the wall surface, often called "hammer rash."

Linear vibrators activate the material inside a chute or bin by using heavy blows on the outside of the structure’s steel walls. In fact, the earliest form of vibration was a hammer. The act of pounding on the chute or bin wall overcomes the adhesive force between the material and the wall surface. However, this hammering on the bin or chutewall often leads to damage to the wall surface. The marks left on the wall by the hammer, often called "hammer rash," will continue and expand the problem the blow of the hammer was supposed to overcome. In addition, the swinging of the sledgehammer poses the risk of injuries to plant personnel. The piston vibrator was developed to produce this effect without actually swinging a hammer.

Download full article


Solutions Showcase

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What do YOU want to read?

Tell us what topics interest you:
us_marketing@martin-eng.com


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