Section 145.142. Definitions

The following words and terms, when used in this subchapter, have the following meanings, unless the context clearly indicates otherwise:

CEMS—Continuous Emission Monitoring System—The equipment required under this subchapter or Chapter 139 (relating to sampling and testing) to sample, analyze, measure and provide, by readings taken at least every 15 minutes of the measured parameters, a permanent record of NOx emissions.

Calcine—To heat a substance to a high temperature, but below its melting or fusing point, to bring about thermal decomposition or a phase transition in its physical or chemical constitution.

Clinker—The product of a Portland cement kiln from which finished cement is manufactured by milling and grinding.

Long dry-process cement kiln—A Portland cement kiln that employs no preheating of the feed. The inlet feed to the kiln is dry.

Long wet-process cement kiln—A Portland cement kiln that employs no preheating of the feed. The inlet feed to the kiln is a slurry.

Portland cement—A hydraulic cement produced by pulverizing clinker consisting essentially of hydraulic calcium silicates, usually containing one or more of the forms of calcium sulfate as an interground addition.

Portland cement kiln—A system, including any solid, gaseous or liquid fuel combustion equipment, used to calcine and fuse raw materials, including limestone and clay, to produce Portland cement clinker.

Precalciner cement kiln—A Portland cement kiln where the feed to the kiln system is preheated in cyclone chambers and a second burner is used to calcine material in a separate vessel attached to the preheater prior to the final fusion in a kiln that forms clinker.

Preheater cement kiln—A Portland cement kiln where the feed to the kiln system is preheated in cyclone chambers prior to the final fusion in a kiln that forms clinker.

System-wide—Two or more Portland cement kilns under the common control of the same owner or operator, or multiple owners, in this Commonwealth.

The provisions of this § 145.142 amended June 18, 2010, effective June 19, 2010, 40 Pa.B. 3346. Immediately preceding text appears at serial page (333589).

Notation

Authority

The provisions of this § 145.142 amended under section 5(a)(1) of the Air Pollution Control Act (35 P. S. § 4005(a)(1)).