In sand extinguishers of all types and granulometries, the novelty is that sand or sand with water or other scatterable and sprayable materials of all types and conditions is used for fire extinguishing. Sludge extinguishing is carried out using various sludges in mixed and unmixed form. Also claimed are (i) sludge for sludge extinguishers; (ii) wet and dry sand jet extinguishers; (iii) sand jet and sludge extinguishers; (iv) sprayers for sand jet and sludge extinguishers; (v) sand jet and sludge spray nozzles; (vi) helicopter extinguishers; (vii) sand and sludge pumps; (viii) conveyor screws and pipes; (ix) sand and sludge extinguishing vehicles; (x) fire extinguishing vehicles; (xi) helicopter water extinguishers and skids; (xii) extinguishing pipes or hoses with spray nozzles; (xiii) (helicopter) fire extinguishing tanks; (xiv) emptying slides; (xv) sludge and extinguishing foam and powder mixts.; (xvi) mortar, lime mortar, gypsum mortar and cement mortar mixts. of all types and consistencies, which can be mixed for use in fire extinguishing; and (xvii) sand granules and extinguishing agent granules of all types and particle sizes, which can be mixed together for use in fire extinguishing. ADVANTAGE - The sand jet and sludge extinguishers can quench or smoother fire centres in woodwork and other locations.
