The dry shotcrete machine, how it’ s work?

[fusion_builder_container hundred_percent="no" equal_height_columns="no" menu_anchor="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" background_color="" background_image="" background_position="center center" background_repeat="no-repeat" fade="no" background_parallax="none" parallax_speed="0.3" video_mp4="" video_webm="" video_ogv="" video_url="" video_aspect_ratio="16:9" video_loop="yes" video_mute="yes" overlay_color="" video_preview_image="" border_size="" border_color="" border_style="solid" padding_top="" padding_bottom="" padding_left="" padding_right=""][fusion_builder_row][fusion_builder_column type="1_1" layout="1_1" background_position="left top" background_color="" border_size="" border_color="" border_style="solid" border_position="all" spacing="yes" background_image="" background_repeat="no-repeat" padding="" margin_top="0px" margin_bottom="0px" class="" id="" animation_type="" animation_speed="0.3" animation_direction="left" hide_on_mobile="small-visibility,medium-visibility,large-visibility" center_content="no" last="no" min_height="" hover_type="none" link=""][fusion_text] The dry shotcrete machine working: 1. feeding dry mixture of cement + sand + small stone (less than 20mm), into hopper 2. the machine is rotor structure to make the raw material into convey hose 3. the shotcrete machine, need one air compressor to supply air pressure. 4.the air pressure make the raw material through the convey hose to arrive the spraying gun. 5.in the spraying gun part,. contact water hose and air hose to add water and air pressure, 6.spraying out wet concrete [/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]