POLLUTION AND NUISANCE CONTROL ACTIVITIES

IN THE CEMENT INDUSTRY THE VARIOUS TYPES OF DUST REMOVAL EQUIPMENT HAVE UNDERGONE CONTINUED FURTHER IMPROVEMENT IN ORDER TO REDUCE THE DUST AMOUNTS DISCHARGED INTO THE ATMOSPHERE. MULTICYCLONES ARE INSTALLED FOR DUST COLLECTION FROM THE EXHAUST AIR FROM COOLERS IF THE CONDITIONS TO ENSURE EFFECTIVE FUNCTIONING CAN BE SATISFIED. THESE INCLUDE THE PREVENTION OF BLOCKAGES AND THE APPLICATION OF MEASURES TO COMBAT WEAR. NOW THAT IT HAS PROVED POSSIBLE TO INCREASE THE OPERATIONAL RELIABILITY OF THE MIXING-BED FILTER, THIS TYPE OF FILTER, TOO, IS SUITABLE FOR DUST COLLECTION FROM EXHAUST AIR DISCHARGED BY COOLERS. FLUIDISED-BED FILTERS AND HOT-GAS DRY FILTERS WITH MINERAL WOOL AS THE FILTER MEDIUM ARE NEW DEVELOPMENTS. THANKS TO NEW TYPES OF CLEANING MECHANISMS, LONGER FILTER FABRIC LIFE IS ATTAINED WITH FABRIC FILTERS. IN THE CASE OF ELECTROSTATIC PRECIPITATORS THE LIMIT OF 150 MILLIGRAMS/CUBIC METERS OF NITROGEN IS, ON ACCOUNT OF UNFAVOURABLE GAS AND DUST CONDITIONS, NOT ALWAYS MAINTAINED IN CONTINUOUS OPERATION. ALSO, THEIR FUNCTIONING IS ADVERSELY AFFECTED BY CORROSION OF THE INTERNAL FITTINGS AND FILTER CHAMBERS. ELECTROSTATIC PRECIPITATORS FOR ROTARY KILNS WITH AIR SUSPENSION PREHEATERS SHOULD BE EQUIPPED WITH EVAPORATIVE COOLERS IN ORDER TO COOL AND MOISTEN THE GASES WHEN DIRECT KILN OPERATION, WITHOUT EXIT GAS UTILISATION, IS EMPLOYED. THE FORTHCOMING OFFICIAL REGULATIONS AIMED AT COMBATING NOISE NUISANCE WILL NECESSITATE MEASURES TO REDUCE NOISE, MORE PARTICULARLY AT WET-PROCESS PLANTS. THE VIBRATIONS CAUSED BY BLASTING IN QUARRIES ARE CONTINUALLY MEASURED IN ORDER TO ENABLE THE REQUISITE TECHNICAL PRECAUTIONS FOR REDUCING THE VIBRATION VELOCITIES TO BE ESTABLISHED. /AUTHOR/

• Supplemental Notes:
  • Vol 57, No 5, PP 209-219
• Authors:
  • Funke, G
• Publication Date: 1968-5

Media Info

• Serial:
  • Zement-Kalk-Gips

Subject/Index Terms

• TRT Terms: Air quality management; Cement; Cement kilns; Dust control; Dust filters; Electrostatic precipitators; Electrostatics; Fibers; Manufacturing; Minerals; Noise control; Ovens
• Old TRIS Terms: Mineral wool; Precipitators
• Subject Areas: Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 00213302
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 23 1994 12:00AM