山东惠祥专利造纸机械

30年专业服务 拥有200余项专利知识产权 制浆废水处理专家
废纸脱墨设备
多级双鼓内流螺旋排渣孔缝筛
编号 :
010
知识产权 :
国家发明专利
产品详情

多级双鼓内流螺旋排渣孔缝筛 (两项国家发明专利)

DSNLS(Φ1-S0.15)采用筛后浆泵产生的压力差对浆料进行筛选。

优点:

一、浆泵叶轮和筛浆机旋翼均不和筛选前的浆料接触,防止其对浆中杂质特别是胶粘物的破坏,提高对浆中杂质特别是书本胶粘物的筛选效率;

二、筛选过程产生的轻重尾渣经过大量清洗水的洗涤,几乎不含良浆纤维,最后轻渣通过设置在设备顶部的螺旋脱水排渣机排出设备外,重渣通过位于设备底部的重渣排渣罐间歇排出设备外,排渣浓度高,可达15%以上,无须尾渣再处理即可直接外运;

三、双筛鼓先微孔(筛孔Φ1mm)后微缝(筛缝S0.15mm)筛选,出浆质量高,一台该设备可代替一台粗选机、一台双锥高浓除渣器、一台多级压力孔筛和一台多级压力缝筛,至少减少一个浆池和二台浆泵的设置;

四、动力消耗极低,吨浆耗电≤15kwH,是传统设计动力消耗的1/3以下;

由于其对胶粘物很高的去除效率,可以免除后道工序针对胶粘物的热分散系统的设置。

DSNLS Multistage Double Drum Inflow Screw Discharging Slot-mesh Screen

- Contains two National Invent Patent

Configures a suction pump at the accept connection instead of feed pump at feed connection, taking advantage of the pressure difference to screen the stock.

Advantages:

Pump impeller and rotor are not in contact with unscreened pulp, which help prevent damage on impurities especially stickies, improve debris removal efficiency especially for adhesives.

The tailing contains hardly any accept pulp fiber after efficient washing. The light slags are discharged out through dewatering screw extractor which is at the top of equipment, the heavy slags are discharged out through intermittent heavy-slag extractor which is at the bottom. Discharging consistency is high, which is over 15%. Thus tailings can be transported without further treatment.

The double drum adopts mesh to slot screening:   - High stock quality;

  - One unit can replace a set of combination including one coarse screen, one double cone high consistency cleaner, one multistage mesh screen and one multistage slot screen;

  - Reduce at least one pulp pool and two slurry pumps.

Power consumption is very low, electricity per ton of pulp is less than or equal to 15kwh, which is one third of conventional system.

High removal efficiency for stickies, which omits configuration of heat dispersing system for treating stickies in post procedure.

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