| abstract |
(57) [Summary] [Objective] To provide a new enclosure that minimizes the emission of pollutants into the atmosphere and maximizes the visible range of the chisel rock site. [Structure] The drill string enclosure consists of a top bracket, an upper acrylic resin cylinder, an acrylic resin drill casing, a lower acrylic resin cylinder, It consists of a bottom bracket and three flexible ducts. The upper acrylic cylinder can be selected based on the drill string height. The drillstring enclosure allows for efficient chisel and visibility in hazardous waste locations. |