Power & Industrial Services

Stationary Coal Nozzle Power & Industrial Services full line of engineered replacement and upgraded stationary coal nozzles are available with the following features: Providing double the wear life of cast iron, all nozzles can be cast from Power & Industrial Services’ proprietary Cryosteel Bolted or integral stainless steel tip All nozzles available with ropebreaker fuel distribution kickers. Complete shop assembly of nozzle, linkage and tip Advantages of the Ropebreaker Coal Nozzle No increase in pressure drop from kickers Significant improvement in fuel distribution exiting the tip resulting in a more stable flame which allows for better combustion control, reduced slagging and lower NOx Disruption of the coal rope significantly reduced localized erosion and increased tip life

Power & Industrial Services provides custom designed remote dewatering chain conveyor systems and complete water recycling systems to help utilities meet the new CCR regulations regarding bottom ash storage ponds Shop-assembled for quality control, then disassembled for shipping. Download Brochure » Dewatering Chain Conveyor Features Heavy-duty wear-resistant construction Sized to meet your requirements Constant slow conveying and dewatering Discharge ash moisture content as low as 15% Stainless steel back flushable dewatering screens to minimize solids carry over Excess overflow processes through integral parallel plate separators to minimize solids carry over What We Need to Design Your System: Coal usage per day per unit Ash content – bottom ash – fly ash Tons of bottom ash generated per day Gallons of bottom ash slurry pumped per day Pumping and rest cycles per day ____________________________________________________________________________________________ Features: Complete EPC Contract Management Overall system design and integration Project management BOP Engineering Civil engineering Water in overflow holding tank transfers to surge tank with makeup water capabilities Additional water filtering to plant specifications Complete system electrical controls and DCS tie-in Return water piping to bottom ash system

The patented “Thru-Bolt” system developed by Power & Industrial Services for split ring tube alignment castings can be installed by a single person in far less time than required by standard procedures requiring two or more people or use of come-a-longs to pull tubes into alignment. Download Brochure » Features & Benefits Our castings come in either standard 2″ high or heavy-duty 3″ high. Power & Industrial Services can recommend an alloy based on your needs Benefits of 3″ heavy-duty castings Provides additional strength Particularly in longer castings where capturing more tubes in one casting can cause additional casting stress Provides more material to withstand extreme operating temperatures Our new U-Clamp and bar alignment method offers the fastest and most secure method of aligning pendant rows without having to weld to your tubes. This eliminates potential tube leaks.

Complete fabrication and assembly performed by our experienced team Custom jigs are used for assembly to ensure proper alignment of all moving parts QC job traveler for each burner Coal and boiler operating data review Test data review CFD modeling of air flow and chemical species of combustion 3D Solidworks models of the combustion system is made after field measurements. This helps with mechanical design and reducing installation problems. Once the baseline CFD model is completed, the addition of Low NOx burners with and without Overfire Air can be tested. Elevation changes of the OFA can be tested as well as various mill and burner combinations and operating conditions. To maximize NOx reduction when overfire air is used, burner throat modifications are supplied for optimum performance Silicon carbide interlocking segments and 309 stainless steel retaining ring

Power & Industrial Services has no affiliation with Foster Wheeler. All parts shown are manufactured by P&I.

• O.E.M. Part84398B MK7
• Pipe I.D.13 1/4"

Power & Industrial Services has no affiliation with Babcock & Wilcox. Power & Industrial Services Corporation manufactures these improved replacement parts which are compatible with Babcock & Wilcox boilers.

Online Pipe-to-Pipe Measurement & Control System The Coal Flow Analyzer is a real time pipe-to-pipe distribution monitoring system. Powered by MIC systems, this microwave based solution continuously omits waves into the coal piping. Variations in the mass flow of the coal are detected and the real-time pipe-to-pipe distribution is displayed on the local computer. When paired with either the P&I Adjustable Orifice Valve or the Lehigh CoalControl™ Adjustable Riffle, the Coal Flow Analyzer provides an accurate, reliable, and easy to use system for performance and combustion optimization. Based on pipe to pipe coal distribution data, each burner air register can be tuned to achieve the lowet possible NOx as well as reducing slag formation that can result with a heavily loaded pipe. Benefits Portable system can be used across multiple mills and multiple units EPRI Tested No pressure drop Does not need to be calibrated Highly accurate and reproducible Fits into existing sampling ports Helps reduce fuel consumption Can be directly tied into DCS Dust free fitting allows for clean testing Coal flow velocity measurement Portable System Portable SystemThe compact Portable System can be used to gather data on a per mill basis. Using existing sample ports, pipe to pipe distribution can be gathered in a few hours. Portable system can be easily taken to other units on the same site or to other plant sites. This system should be part of the equipment of every utility’s combustion optimization team.

• Part No.2-5485-A
• Nom. Door Size3" Dia.
• Free Opening Area3" Dia.

• Diameters51 mm (2″)

EU Tech – Coalsizer – Coal Fineness Euflame – FEGT Continues Monitoring Fineness Testing and Mill Optimization The coal particle size spectrum has a strong impact on the combustion process. It influences ignition delay, combustion efficiency, LOI, NOx & CO, as well as slagging and fouling. Despite the significance of this property, there has not yet been a robust and easy to handle system for the online measurement of coal fineness inside the pipe. EucoalizerSolution EUcoalsizer solves this problem. The laser based system measures the particle size distribution and the coal as well as PAPF flow. By traversing the lance through the pipe, a particle size distribution along the cross-section of the coal pipe can be measured. The time of transition method covers a very wide range of particle sizes from 20 μm to 4 mm. The simultaneous measurement of coal and air flow proves to be an essential prerequisite for fuel line balancing and coal flow optimization. Specifications The EUcoalsizer system comes turn-key and can be directly applied via an adapter to the coal pipe. The system delivers results on-line and instantaneously. Handling is very easy via an intuitive graphical user interface. The system has many helpful features to support analysis and optimization (report generator, data base, etc.) Rugged industrial design for exposure to highly abrasive flow conditions Effective lance length > 1 m (covering pipe diameters up to ~625 mm 25″) Probe diameter 51 mm (2″) Benefits On-line combustion optimization (reducing LOI, emissions, slagging) Pulverizer performance monitoring Condition-based pulverizer maintenance Coal flow and airfuel distribution tuning Reduction of fuel consumption Real time, dynamic Rosin Rambler chart Accurate airfuel ratio measurement

Large Particle Ash Screens For the removal of large particle ash, Power & Industrial designs and manufactures separation pyramids for installation near the economizer hopper. Key features AR 400 or A36 perforated plate Nanosteel coating on all surfaces Rigid angle iron construction No need for rappers or hammers

• ModelModel A—4 5/8” I.D. Throat Model B—4” I.D. Throat

Fly Ash Replacement Parts – United Conveyor Replacement Power & Industrial Services manufactures improved replacement parts for your United Conveyor Ash Systems. Harder wear resistant cast metals and custom ceramic linings will reduce your maintenance costs by giving you longer wearlife. Power & Industrial Services has no affiliation with United Conveyor. All parts are manufactured by Power & Industrial. Interchangeability of assemblies and spare parts with United Conveyor assemblies and parts Extensive stock program Custom Ceramic Lining All potential wear surfaces have alumina andor silicon carbide linings Wear Resistant Parts 600 BHN investment cast seat NiHard or Ceramic gate liners

PRB Coal Bunker Cleanout System The high volatility of PRB coal has led to unique coal handling techniques. Coal bunker fires can start in a few days after a mill or unit is shut down. Emptying the bunkers has become standard operating procedure for PRB users. Power & Industrial Services has designed a simple and economical method to safely unload a coal bunker without the need for a vacuum truck. PRB Coal Bunker Cleanout Is installed between the coal feeder and the pulverizer. Custom stainless steel pipe spool with removable access door Ceramic lined spool available Davit arm supports the cleanout door Diverter gate Cover plate with 10″ outlet pipe