Projects
  
    INDUSTRIAL CONTRACTORS, INC. WON THE BASIN ELECTRIC POWER COOPERATIVE PREFERRED SUPPLIER AWARD
 
BEPC Preferred Supplier Award
BEPC Preferred Supplier Award
Industrial Contractors, Inc. won the Basic Electric Power Cooperative Preferred Supplier Award for their outstanding performance in 2005. The Preferred Supplier Award is great news for ICI as Basin Electric represents more than 50% of their annual business volume.

Basin Electric Power Cooperative and Dakota Gasification Company completed an annual, year-end performance evaluation for 68 key suppliers as part of their Supplier Quality Assurance Process. The participating suppliers and evaluators for each specific supplier were determined based on the input of all Basin Electric Power Cooperative/Dakota Gasification Company facilities.

The Supplier Quality Assurance Process classifies the evaluated suppliers as Preferred, Quality, or Conditional based on the supplier's overall score.

According to Bob Nelson, President of ICI, this is the fourth Preferred Supplier Award they have received and what makes it so significant, is the fact that ICI is graded by the Basin Electric Power Cooperative staff that they work for.  There are several people who have input at each of the three sites where ICI has maintenance contracts; Antelope Valley Station, Leland Olds Station, and the Great Plains Coal Gasification Plant.  Annually,
Basin Electric Power Cooperative grades around 70 to 90 vendors and only 10 or 12 are awarded Preferred Supplier status.  It is particularly difficult for contractors to make it as they are exposed to so many people versus other types of vendors who may only interface with one or two people.
 
ICI Replaced Feedwater Heaters in the Antelope Valley Power Station for Basin Electric Power Cooperative
 

ICI is replacing feedwater heaters in the Antelope Valley Station for Basin Electric Power Cooperative.ICI worked on a project at Antelope Valley Station for Basin Electric Power Cooperative to replace two Feedwater Heaters in Unit Two during their Spring Outage starting April 15.

The project involves removal of existing piping from two feedwater heaters located in the plant, and replacing them with two new heaters. These heaters are about 5.5’ in diameter. One is 33’ long and 47 tons. The other feedwater heater is 45’ long and 66 tons.

The heater floor in the plant is 165’ above grade, and we have to reach approximately 90’ from the center pin of the crane to the platform where the heaters will exit and enter the building.

Ringer TracksWe are assembling a Manitowoc 4100 Crane with a ringer attachment to perform this work. Cranes are normally on tracks but because this crane has to reach out 90' over the the top of the turbine building, it has to be put on a ringer. A ringer is a track that is anchored down to the ground.
 
Installation of counterweights on the crane.
Iron Workers Install Counter Weights
on the Manitowoc 4100 Crane
This crane has 300’ of main boom in the rig. It also uses an auxiliary support crane. The auxiliary support crane is a 75 ton American Truck Crane, supplied by Borsheim Crane Service of Williston. It took approximately five days to assemble the crane and ringer for this job. The crane was shipped to the job in 28 loads. 
 
Auxiliary Support Crane
American Truck Auxiliary Support Crane
Crane with Ringer
Manitowoc 4100 Crane with Ringer
 

Building opening to feedwater heater floor.We have opened up a section of wall on the power plant and removed some sheeting girts. We will install supplementary steel to support the loads involved, and erect a platform to land the heaters on to make the picks. When complete, the platform will be situated in front of the opening in the power plant wall.

Construction of Heater Platform
Construction of Heater Platform

 
 

Building opening with platform to feedwater heater floor.In the picture to the right, the platform to land the heaters on has been erected.

View of platform from the feedwater heater floor.
View of Platform from the Heater Floor

 
 
The new feedwater heaters are at the work area.
New Feedwater Heaters at Work Area
 
Pipefitters removing trim piping from old feedwater heater.
Pipefitters Removing Trim Piping from Old Feedwater Heater
At this point, we have started cutting the piping away from the old heaters.
 

Removal of old feedwater heater from the building.In the picture to the right we are removing the old feedwater heaters from the power plant.

 
Landing the old feedwater heater.
Crane Removing Old Feedwater Heaters
   
Crane landing old feedwater heater.
 
The crane is lifting the new feedwater heater off the ground.
Crane Lifting New Feedwater Heaters to the Platform
   
The crane is lifting the new feedwater heater towards the platform.
 

New heater piping connections.Here we are working on the main piping connection welds, trim piping and level control instrumentation on the feedwater heaters.

 
 
New heater level control instrumentation.
Level Control Instrumentation
   
Feedwater heater trim, piping and insulation.
Trim Piping and Insulation
 
Old Feedwater Heater
Old Feedwater Heater
Along with moving these heaters, the project involves cutting and machining the pipe for the heaters, welding the new heaters to the existing pipe, stress relieving the pipe, removing and installing insulation and lagging (by API Construction, Co.), and reinstalling the trim and instrumentation piping.

Visit their website at www.apiconst.com

 
New Feedwater Heater
New Feedwater Heater
Feedwater heaters are used to raise the temperature of the water from the condenser that is sent back to the boiler to make steam. This improves the thermodynamic efficiency of the system, and also helps to avoid thermal shock to the boiler metal when the feedwater is introduced back into the steam cycle. The feedwater heater walls are 2" thick in order to withstand high pressure. As time goes on, these heaters wear out and need to be replaced. Unfortunately, it is not always easy to access these heaters for replacement, as is the case with this project.
 
Boiler Schematic
Typical Coal Fired Boiler Schematic
 
© 2004 Industrial Contractors, Inc.
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