System and method for controlling emissions created by spraying liquids from moving vehicles

A method for controlling emissions created by spraying a heated liquid paving composition from at least one nozzle of a moving vehicle onto a pavement surface, comprising:

• providing a vacuum hood adjacent said at least one nozzle and above the pavement surface, the vacuum hood having at least one inlet and at least one outlet;
• providing a shroud structure associated with the vacuum hood to at least partially enclose an emissions collection region above the pavement surface;
• spraying the heated liquid paving composition from said at least one nozzle as said vehicle moves;
• creating a partial vacuum within the vacuum hood to draw air from said emissions collection region through said at least one inlet;
• extracting emissions from said air;
• and
• exhausting to the atmosphere air from which said emissions have been extracted.

A system for controlling emissions created in a preselected region by spraying a heated liquid paving composition from at least one nozzle of a moving vehicle onto a pavement surface, comprising:

• a vacuum hood positionable adjacent said at least one nozzle and having at least one inlet and at least one outlet;
• at least one fluid conduit having a discharge portion directed substantially toward said preselected region;
• a mechanism for moving air having:
• a first portion communicating with said at least one outlet to create a partial vacuum within the vacuum hood and draw air containing said emissions through said at least one inlet;
• and
• a second portion communicating with said at least one fluid conduit to direct pressurized air substantially toward said preselected region;
• and
• apparatus for receiving the air drawn into the vacuum hood and extracting emissions therefrom.

A system for controlling emissions created in a preselected region by spraying a heated liquid paving composition from at least one nozzle of a moving vehicle onto a pavement surface, comprising:

• means located adjacent said at least one nozzle for collecting air containing said emissions from said preselected region;
• means for drawing said air from said collecting means;
• means for directing pressurized air toward said preselected region;
• and
• means for receiving air drawn into said collection means and extracting emissions therefrom.

A method for controlling emissions created in a preselected region by spraying a heated liquid paving composition from at least one nozzle of a moving vehicle onto a pavement surface, comprising:

• providing a vacuum hood adjacent said at least one nozzle and having at least one inlet and at least one outlet;
• providing at least one fluid conduit having a terminal portion directed toward said preselected region;
• spraying the heated liquid paving composition from said at least one nozzle as the vehicle moves;
• creating a partial vacuum within the vacuum hood to draw air containing emissions from the spraying operation through said at least one inlet;
• passing pressurized air through said at least one fluid conduit and toward said preselected region;
• extracting emissions from air drawn into the vacuum hood;
• and
• exhausting to the atmosphere air from which said emissions have been extracted.

A system for controlling emissions created by spraying a heated liquid paving composition from at least one nozzle of a moving vehicle onto a pavement surface, comprising:

• a vacuum hood positionable adjacent said at least one nozzle, said vacuum hood having at least one inlet and at least one outlet;
• a mechanism communicating with said at least one outlet to create a partial vacuum within the vacuum hood and draw air containing said emissions through said at least one inlet;
• apparatus for receiving said air and extracting said emissions therefrom;
• and
• a subsystem for exposing at least some of the air adjacent the vacuum hood to water.

A method for controlling emissions created by spraying a heated liquid paving composition from at least one nozzle of a moving vehicle onto a pavement surface, comprising:

• providing a vacuum hood adjacent said at least one nozzle, the vacuum hood having at least one inlet and at least one outlet;
• spraying the heated liquid paving composition from said at least one nozzle as the vehicle moves;
• creating a partial vacuum within the vacuum hood to draw air containing emissions from the spraying operation through said at least one inlet;
• extracting emissions from said air;
• exhausting to the atmosphere air from which said emissions have been extracted;
• and
• exposing at least some of the air adjacent the vacuum hood to water.