高浓漂白塔是用于磨木浆和其它浆种的高浓浆料(28%—32%)进行过氧化氢漂白反应的装置。 浆料与漂液经高浓混合器充分混合后进入漂白塔,经过漂塔顶部的浆料分布器从塔顶落下,浆料从塔顶塔底需经过二小时,由底部的螺旋卸料装置排出,进入贮浆池,完成整个高浓过氧化氢漂白过程。 本设备采用锥台结构,以减小浆料架桥的可能性,塔顶装有浆料分布器,以减少浆料的自然堆积角;塔底采用等螺距、等外径、变芯轴轴径的出料螺旋,以确保塔各等高截面上的浆料均匀下落,从而保证了高浓过氧化氢漂白工艺对塔体内各部分浆料的停留时间保持基本一致要求。本设备具有结构先进、工作可靠、生产能力大、漂白效果好,工艺适应性广,操作维修方便等特点。
A high concentration tower is used to bleach pulp mill and other kinds of pulp slurry of high concentration (28% -32%) for hydrogen peroxide bleaching response of the device. And pulp bleaching solution by the strong mixer full of high mixture of bleach into the tower, after a pulp bleaching tower at the top of the distributor from the top down, bottom slurry from the top of the tower to be approved by two hours, from the bottom of the spiral discharge Device discharges into the slurry storage tank, to complete the high concentration of hydrogen peroxide bleaching process. The use of this equipment to Taiwan cone structure of the bridge in order to reduce the possibility of pulp, pulp with the top distributor in order to reduce the accumulation of the natural angle of the slurry; such as the use of bottom pitch, such as diameter, variable-axis pivot Drive out of the spiral is expected to ensure that the high-tower cross-section of the slurry on the whereabouts of uniform, thus ensuring a high concentration of hydrogen peroxide bleaching process on the part of the tower in the body of pulp residence time to maintain the same basic requirements. The present structure of the equipment has advanced, reliable, large capacity, good bleaching effect, the wide adaptability of technology, easy operation and maintenance and so on.