N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-8.3

Current through Register Vol. 46, No. 50, December 11, 2024

Section 4-8.3 - Special requirements for heat generating apparatus fired with pulverized coal

(a) Explosion vents. Suitable explosion vents extending to the outside air shall be installed on storage bins, cyclone collectors and piping for central storage systems of pulverized coal.

(b) Ignition of pulverized coal. A large and stable pilot flame to insure proper ignition of the pulverized coal shall be provided. Manual ignition with oil soaked torches is prohibited. If an oil burning pilot is used, it shall burn pressure-atomized number two or other light grade fuel oil having a discharge rate of 20 to 50 gallons per hour. If a gas pilot is used, the burner shall deliver gas at a rate of not less than 1,000 cubic feet per hour.

(c) Starting the boiler. A supply of dry coal shall be provided to start the boiler so that proper ignition will result.

(d) Interlocks. Mechanical or electrical interlocks shall be provided on each of the following devices to insure operation only in the order listed, and automatically to shut down all of the units following it in order of operation should any single unit fail.

(1) induced draft fan to purge furnace and passes;

(2) forced draft fan;

(3) primary oil blower;

(4) coal pulverizer; and

(5) coal feeder.

(e) Flue damper interlock. If natural draft instead of induced draft is used, an interlock shall be provided to insure that the flue damper is wide open in case of the failure of the forced draft fan.

(f) Central storage interlocks. If a central storage system is used, electrical interlocks shall be provided on conveyors, pulverizer motors and blowers, and separate blowers which shall automatically shut down all of the units ahead of any single unit in order to prevent coal from piling up in the system if a single unit should fail.

N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 4-8.3