ZCF系列对流式脱墨浮选机

ZCF系列对流式脱墨浮选机/ ZCF Series Convection Deinking Flotation Machine

原 理 ：

浆料由浆泵进入浆料分配总管，均匀高速地进入多个文丘里管式浆气混合器，在文丘里管缩颈处借负压自动吸入空气，与空气混合后的纸浆沿切线方向进入下部小直径的圆柱形浮选室进行第一次浮选;纸浆沿螺旋线上升到达顶端后向外溢流，气泡吸附油墨粒子上浮到表面形成油墨泡沫被真空吸墨装置吸走。与油墨分离的浆料下流到容器的外槽，并导入液位箱，以使浆面与泡沫抽吸管保持一定距离。液位箱中的浆料在泵出过程中一部份经文丘里浆器混合器由外槽中部切入，与内筒顶端翻下的良浆混合进行二次浮选，二次气泡吸附的油墨粒子也上升到浆面上的泡沫层被吸走。良浆旋至外槽的底部流出。

结构特点:

ZCF系列对流式脱墨浮选槽由上大下小两级园柱组成浮选槽，若干个浆料分配缸和文丘里混合器，吸墨装置与墨渣分离器、液位控制器组成。

ZCF系列对流脱墨浮选槽一般由2-4台串联组成使用。

浆料在浮选槽中高速喷射，旋流上升，溢流下降二次浮选。处理浆料浓度为0.8-1.0%。处理后白度高，四台串联使用浆料白度值可提高5-7°ISO。该设备脱墨效果好，动力消耗较低，占地面积小，操作方便可靠。

抽吸式负压吸墨及气液分离对浮选油墨吸附干净，纤维流失少，墨渣分离聚集，便于处理。污水含油墨少，利于污水处理。

Working principle：

Pumped into the stock distribution main pipe, the pulp flows into several Venturi tube type pulp air mixers uniformly in high speed, and then inhales air automatically into the venturi tube with effect of the negative pressure. Mixed with the air, pulp enters cylindrical flotation chamber with small diameter in bottom in tangent direction for the first flotation; The pulp rises along the helix direction to the top and then overflows, the bubble attaches the ink particles and float onto the surface to form the ink foam and sucked away by vacuum ink absorption device. The stock which separated from the ink flows down to the outer tank of the vessel and be guided into the liquid level tank so that the stock surface is keep distance from the foam suction pipe. During the process of the stock pumped outside the liquid level box, part of the stock into the outer tank through the venturi pulp air mixer, then mixing with the accepts at the top of the inner tube to carry out the second flotation, the ink particles absorbed by the secondary bubble rise to the foam layer on the pulp surface then be sucked away. The accepts rotates to the bottom of the outer tank then flow outside.

Design Features:

ZCF series convection deinking flotation cell consists of the flotation cell which is made of two cylindrical sections(the big one on the top and the small one on the bottom), numbers of stock distributing cylinder and Venturi mixer, ink absorbing device, ink residue separating device and liquid level controller.

It is usually to use 2-4 convection flotation cells together and the 2-4 cells need to be used in series.

主要技术参数 / Main technical data