Screw Conveyor – Auger

The Auger Conveyor uses a rotating helical screw blade to move materials along its length. This unit moves abrasive materials from hopper to hopper then to bagging.

 

 

 

 

 

 

 

 

Notice how the abrasive material has worn down the blades. Also, material is sticking to the untreated blades. Material slides over the smaller, worn out blades making the conveyor ineffective. Jobs take longer and costs rise quickly.

 

 

This new unit has Hardfacing Wire (Lincore 55) welded to the blades to reinforce them and add durability. This surface resists sliding wear and mild abrasion. These new blades will have a longer service life.

 

Industrial Classroom Training Aids

If you ever wondered where the custom training equipment in industrial classrooms come from, then look no further than Riggs Machine.

 

 

 

 

 

 

 

 

At Riggs we can create custom pieces from scratch, like this “oil flinger” demonstration unit. Shown from conception, with 3D renders, to the final unit in the classroom.

3D Oil Render Test
Oil Flinger 3D Render

 

 

 

 

 

 

 

 

And we also often disassemble, create “cut-away” sections, sandblast, paint and reassemble actual pieces of equipment to be used in working classrooms. These units are used for hands-on training before students hit the field. Much better than a video or book based lecture.

FinTube Assembly – Ready for Class
Custom Cut-Aways

 

 

 

 

 

 

 

 

 

 

Some of these jobs can be more time and labor intensive than actual repairs! But we don’t mind. We’re proud to be part of the team who help educate the next generation who will be keeping our refineries, steel mills and factories running.

Pump Cut Away in Process
Pump Lid – Painting Detail

The Target Blind – Revisited

Blinds, sometimes known as blanks, isolate a section of pipe for repair, maintenance or testing. There are many types of blinds as we have shown before from the slip blind, the spectacle blind to the bleeder blind.

 

 

 

 

 

Here we have a nice assortment of Target Blinds. Used much like the bleeder blind, the target blind is placed on the end of a pipe section rather than in the center of a section. Gauges can be placed on the valves to test the pressure in the section of piping. Sampling can also be taken from the valve if desired.

 

 

 

 

 

 

 

 

The different sizes correspond with the different sizes of piping found within the refinery.

 

 

 

 

 

 

 

 

This group of target blinds is a bit “beefier” than usual. They will be used during the permanent shutdown of a unit until the demolition of the unit occurs. There may be need for occasional venting of the piping section until the demo.

Is Your Scaffold System OSHA Compliant?

Ladder on Scaffold by George Hoden

Do you use long term scaffolding in place of permanent platforms? Are they stable, secure and up to the new OSHA regulations? Are you still renting your scaffolding and paying for it month after month?

FALL PROTECTION & SCAFFOLDING VIOLATIONS

remain among OSHA’s most frequently cited standard violations.*

 

 

OSHA violations are now subject to higher penalties,

this signals a 78% increase in penalty amounts.*

 

Convert your temporary, unstable scaffolding to a sturdy, permanent structure. No more rentals, no more repairs, no more guard rails that are dangerously low and above all, avoid the fear of those outrageous OSHA fines.

A Riggs Machine representative will review your current needs and outline the best options for your facility. We even offer 3D renders of the unit before construction begins so you can visualize the actual unit design.

  

Walkways – Handrail – Ladders

Riggs can not only deliver new assemblies for your facility, but update your existing equipment to bring it up to the new standards.

 

 

 

 

 

OSHA – Final Rule to Update General Industry Walking-Working Surface and Fall Protection Standards

OSHA – Top Violations

* bdlaw.com – Notes regarding OSHA penalty increases and violation citation frequency.

Witch Hat Strainers

Ever lose a bolt while working on your car, and then have a hard time finding it? Imagine that while working on industrial piping. Well it happens. When a new pipe goes up, many items can find their way trapped in the pipe, and when the unit is first started up, those items go racing to the end of the pipes. Many times leading into a unit or a pump.

A simple bolt in a new pump is a recipe for disaster. The pump is blown. It has to be removed and repaired. They are often in hard to access locations, covered with guards and shrouds. Crews come in! Permits! Downtime! Behind schedule!

But this simple item could have prevented that. The Witch Hat Strainer (also called a Start-Up Strainer), is placed in-line to catch items like bolts, nuts, tools, debris and anything that may have found it’s way in the line during installation or maintenance.

A novel idea that saves time and money.

Custom Replacement Parts

Your facility has a 50 year old unit and replacement parts are not available. You have no drawings and the few parts you do have look like this!

 

 

 

 

 

This is a problem we see with the aging facilities common in our area. Luckily quick in-house replacement parts are one of our specialties.

3D Render of Buckstay Clips
3D Render of Buckstay Clips

No on-line hunting for parts – No stealing from other units! Give Riggs a call and get running again.

Buckstay Clip Inventor DWG
Buckstay Clip Inventor DWG

The Gator – First Test

The Gator is a remote controlled tank cleaning unit we built for Veolia Environmental Services. It is driven into large tanks to clean the walls of hazardous materials. Its infrared lights cut through the dark and mist while recording all operations from the safety of a control booth.

This is a test of the unit running up a ramp and squeezing through a manway as it would enter a tank in the field.

Boiler Boxes – Refurbished

In a hot-job shop you never know what will come through the doors.

old manway boiler box
Old Manway Boiler Box
old hatch boiler box
Old Hatch Boiler Box

 

 

 

 

 

 

 

 

Take these worn boxes that attach to the sides of boilers. We needed to reuse some of the components, but build new, stronger frames.

new frame in process

These new Boiler Boxes will fit just like the old ones, but last a lot longer.

new flange boiler box
New Flange Boiler Box
new manway boiler box
New Manway Boiler Box
new flange box
New Flange Box

Boiler Face Plate w/Expansion Folds

A boiler gets hot, really hot. And when it does, the walls expand.

To help control expansion, one solution is to cut slots in the walls and weld “Expansion Folds” over top of these slots.

Expansion Slot
Expansion Slot
Welded Expansion Fold
Welded Expansion Fold

 

 

 

 

 

 

 

 

 

 

This gives the plate a little more room to expand as the pressure builds in the unit. They are placed around the plate helping it expand as it heats.

Boiler Face Plate
Boiler Face Plate