[fusion_builder_container hundred_percent=”no” hundred_percent_height=”no” hundred_percent_height_scroll=”no” hundred_percent_height_center_content=”yes” equal_height_columns=”no” menu_anchor=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”” background_image=”https://www.earthsquad.global/wp-content/uploads/2018/04/recycling-240-1024×682.jpg” background_position=”center center” background_repeat=”no-repeat” fade=”no” background_parallax=”fixed” enable_mobile=”no” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”40px” padding_top=”” padding_right=”” padding_bottom=”” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”” center_content=”no” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”set_recycle” id=”” background_color=”” background_image=”” background_position=”left top” undefined=”” background_repeat=”no-repeat” hover_type=”none” border_size=”0″ border_color=”” border_style=”solid” border_position=”all” padding_top=”50px” padding_right=”50px” padding_bottom=”50px” padding_left=”50px” margin_top=”” margin_bottom=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” last=”no”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]废金属可以定义为废物金属，或任何可从以前的组合物中回收的金属组合物的材料或产品。这可用于汽车零件，建筑和制造工厂的二手零件，多余的建筑材料等;如果销售得当，废料价值很高。金属废料的回收近年来备受关注因为世界倾向于实现绿色气候。 回收大大减少了metal 。
废金属主要分为黑色金属和有色金属。有色金属是不含铁的金属，如铝和铜。通过将它们传递到强磁场上可以很容易地检测到这一点。铁具有磁性，因此每种含铁的金属都具有磁性。黑色金属是含有铁的金属。黑色金属通常被压实并运送到铸造厂以供再利用，而有色金属则经过进一步的处理和表征。[/fusion_text][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container][fusion_builder_container hundred_percent=”no” hundred_percent_height=”no” hundred_percent_height_scroll=”no” hundred_percent_height_center_content=”yes” 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” enable_mobile=”no” parallax_speed=”0.3″ video_mp4=”” video_webm=”” video_ogv=”” video_url=”” video_aspect_ratio=”16:9″ video_loop=”yes” video_mute=”yes” video_preview_image=”” border_size=”” border_color=”” border_style=”solid” margin_top=”” margin_bottom=”” padding_top=”” padding_right=”” padding_bottom=”” padding_left=””][fusion_builder_row][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”” center_content=”no” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”” background_image=”” background_position=”left top” background_repeat=”no-repeat” hover_type=”none” border_size=”0″ border_color=”” border_style=”solid” border_position=”all” padding_top=”” padding_right=”” padding_bottom=”” padding_left=”” margin_top=”” margin_bottom=”” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” last=”no”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]
金属
回收流程
以下是金属回收过程的主要阶段：
收集：
这是金属回收的第一步。它涉及从垃圾场，车库等处获得金属废料。金属废料的评级高于常规材料。诸如纸之类的常规材料堆叠在一起并用于填埋。在美国，最大的黑色金属来源是废旧车辆。其他来源包括建筑材料，消费者使用金属方面，工厂设施，铁路轨道等
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分选和分离技术:
分拣是回收利用中非常重要的一步。有效的分类有效 回收，特别是在处理时metal scraps. Sorting involves separation of metals from a heap of回收，特别是在处理时 根据形状，大小，颜色，密度，重量，磁性，导电性，发光度，类型，形式，结构等，废弃物流或来自不同成分的废金属混合物。在自动回收中，机器安装使用磁铁，光束，传感器和小工具根据上述参数分离金属。一些分选和分离技术包括以下内容
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当黑色金属与有色金属分离时，使用磁分离。在这个过程中使用大型强力磁铁和电磁铁。电磁铁是电控制的，可以关闭或打开。两种流行的磁分离方式是鼓式和皮带式。在前者中，一个大鼓永久固定在其下面的磁铁。废物流通过皮带并在滚筒下方，铁质材料迅速被磁铁吸引并容易分离。在带式系统中，磁体安装在各种运动过程中，例如在皮带行进的皮带轮之间。然而，磁分离有其局限性，因为它不能将铁和钢与镍或磁性不锈钢分开。建议包括观察效率低下的人工分拣。
[/fusion_toggle][fusion_toggle title=”涡流分离过程” open=”no”]
该方法将黑色金属与废物分离。在导体暴露于变化的磁场时感应出涡电流。该方法利用非磁性金属的导电性。这通过沿着进料流传递磁流并使用金属中的感应涡流来简单地完成。当废物进料进入系统时，由于磁场和涡流的相互作用，非磁性材料向下滑动，而黑色金属则向侧面偏转。
[/fusion_toggle][fusion_toggle title=”Trommel分离器/鼓筛” open=”no”]
该方法根据材料的尺寸分离材料。将废料进料到具有穿孔底部的非常大的旋转滚筒中。小尺寸的材料通过这些孔落下，同时保留较大的颗粒。
[/fusion_toggle][fusion_toggle title=”归纳分拣” open=”no”]
在此过程中，废物进料通过传送带传送，传送带在其下方的不同位置安装有传感器。这些传感器能够定位各种类型的金属，然后通过与这些传感器相连的快速空气喷射系统分离。
[/fusion_toggle][fusion_toggle title=”近红外传感器（近红外）” open=”no”]
发光度是与金属相关的特性之一。当在近红外波长下照射时，金属容易反射光。 NIR传感器可以根据金属反射的强度和波长来区分金属。
[/fusion_toggle][fusion_toggle title=”X射线技术” open=”no”]
X射线技术可以根据其密度区分金属。
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处理:
为了进一步处理，金属将被粉碎。进行切碎以增加金属的表面积。具有大表面积的金属需要较少的热能融化。结果，这节省了加热成本以及冷却加热室的成本。
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融化:
废金属在非常大的炉子中加热。每个金属在特定的熔炉中熔化为了它。熔化金属需要高温，但这可以通过增加表面积来降低。尽管废金属加工所需的能量很高，但提取和使用金属直接来自原材料。根据炉子的大小和热能的程度，处理时间可以从几分钟到几小时不等。
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纯化:
进行纯化以消除材料中可能的污染物并确保最终的金属是高等级的。最常见的过程是电解。[/fusion_text][/fusion_builder_column][fusion_builder_column type=”1_1″ layout=”1_1″ spacing=”” center_content=”no” link=”” target=”_self” min_height=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=”” background_color=”” background_image=”” background_position=”left top” background_repeat=”no-repeat” hover_type=”none” border_size=”0″ border_color=”” border_style=”solid” border_position=”all” animation_type=”” animation_direction=”left” animation_speed=”0.3″ animation_offset=”” last=”no”][fusion_text columns=”” column_min_width=”” column_spacing=”” rule_style=”default” rule_size=”” rule_color=”” hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” id=””]
凝:
熔化和净化后，熔融的废金属在传送带中转移，冷却并固化成型钢筋 金属床。它们可以很容易地用于形成各种产品
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金属废料 回收已成为过去十年中经济产生巨额收入的一个非常重要的部门，这一趋势尚未持续。随着绿色气候的需要, 回收正在增加。与原始原材料相比，金属废料回收产生的热量和释放的二氧化碳要少得多。废料回收消除了不加选择的金属倾倒 浪费在环境中。它还减少了我们的自然资源如铁矿石的压力。
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冲浪……
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