线性运动筛分机
针对大而粗糙的颗粒筛分需求提出的优良解决方案
筛得力线性运动筛分机适用于粒状散装货物的筛分和脱水。由双不平衡齿轮组(HG型、HG-E型、UHG型)、双轴驱动(DWS型、DZS型、HN型)或不平衡电机(HR型、HR-E型、MHR型)提供驱动。
我们制造出带有顶部或底部安装驱动装置的线性运动筛分机,以满足极端要求。它适用于面积宽大的机器(最宽5.5m)或极大颗粒的进料(例如,边缘长度约为1.5m的花岗岩)。这些机器还可以满足高进料温度和低残留水分的要求。
可选一层或多层式齿轮筛。不同的齿轮组尺寸可带来出色的设置,以迎合您的特定应用。平衡质量和速度可进行分阶段调整。这使得齿轮箱的线性振动幅度和加速度能够最佳地适应技术工艺要求。
线性运动筛分机的齿轮组安装快捷方便,并可提供高筛分机可用性。
我们建议将这种机型应用于破碎机减载筛分,即作为具有高进料速度或粗分离切割的初步筛分。
双轴筛
双轴筛的驱动概念基于圆周运动机器上经验证的振动发生系统,但机器有两个版本。
在其中一个版本里,两个带有不平衡块的轴承安装驱动轴以相反方向进行驱动。因此,筛箱的最终动作是线性的,就像齿轮筛一样。
我们推荐将这种驱动概念应用于在沥青生产和砂的低压脱水过程中,对温度高达450 ℃的热石屑材料进行多层筛分。
不平衡电机
双不平衡齿轮组或双轴解决方案有一个更为经济的替代方案,是由两个不平衡电机提供驱动——尤其是在标称宽度较小的区域。
两个不平衡电机以相反的方向驱动。因此,筛箱的最终运动是线性的,就像齿轮筛或双轴系统一样。这些筛孔极小的线性运动筛适用于砂、砾石、矿石、冲孔和矿渣等的脱水或再循环。
性能和机械特性
筛得力线性运动筛分机属于自由振动的筛分机,其振幅可自由调节,以适应筛箱和不平衡块的质量比。所设计的线性运动筛分机可选择性地采用陡角(大约75°)或浅倾角(大约40°),因此,我们可灵活选择筛板的倾斜度,其倾斜范围从向上至水平再到向下。例如,脱水筛需要向上倾斜3至5度,而分类筛分机需要向下倾斜高达约40°(薄层筛分)。
HG(双不平衡齿轮组)、DWS(双轴筛)和HR(不平衡电机)系列筛分机的分离尺寸在0.5至300mm之间,筛分面积在大约0.1至60m²之间。根据所用产品的不同,这些机器的振动幅度可在2到14mm之间进行设置。筛网装置可由一至三个筛面组成。
该线性运动筛分机的速度和振动幅度可根据产品的具体情况进行调整,从而确保获得持久完美的筛分结果。
筛箱可选用纵向或横向张紧的筛板,或适用水平筛面,也可适用第三方制造商生产的筛网。
由侧壁和横梁组成的筛箱能够承受所有的静态和动态力。振动产生系统不在筛箱的重心位置上。双不平衡齿轮组或不平衡电机安装在驱动桥上。重要的是,其合力的方向穿过重心。这同样适用于双轴筛分机上两个驱动轴的位置。
线性运动筛分机由具有中间传动的三角皮带传动所驱动,或通过万向节轴的直接传动所驱动。双不平衡齿轮组有一个注油口。不平衡电机始终采用油脂润滑。双轴筛网可选择使用油润滑或油脂润滑。
筛箱由4个弹簧元件弹性支撑在底座上。在这里,螺旋压缩弹簧、橡胶缓冲器、振动元件或风箱的不同系统均是可用的,并且如有需要,可以组合应用(混合式悬挂)。
对于含尘物料,我们可根据需要提供带有防尘罩或封闭式防尘箱的线性运动筛分机。也可采用搅打装置或喷洒系统的形式,单独适用筛分辅助设备。
该坚固结构与标准部件组合应用,一方面确保了高度的灵活性和以客户为中心的解决方案,另一方面也使得所制造的机器具备低维护运行时间和长使用寿命的特点。
技术规格
线性运动筛分机 | |||||
---|---|---|---|---|---|
有效宽度 | mm | from | 600 | up to | 5500 |
有效长度 | mm | from | 1000 | up to | 12000 |
倾斜度 | degree | from | 5 | up to | -30 |
速度 | min-1 | from | 750 | up to | 1200 |
振幅 | mm | from | 2 | up to | 14 |
投掷角 | degree | from | 40 | up to | 75 |
振动重量 | t | up to | 40 |
Low-pressure dewatering screening machine
Low-pressure dewatering screening machine
To meet a strong demand for low residual moisture
To meet especial demand for low residual moisture in e.g. sand, our low-pressure dewatering screening machine is an interesting alternative. It delivers lower residual moisture levels than linear-motion screening machines that are usually used for dewatering. This machine is based on the “dual-shaft screening machine” drive concept, because with this kind of vibration generation higher speeds can be reached. Higher speeds combined with a pneumatic low-pressure system have a marked lowering effect on residual moisture levels.
Advantages of our low-pressure dewatering screening machine:
- Customer-specific concept
- High dewatering performance
- Screen cloth to suit the screened material
- Low-clog dewatering
- Excellent vibration insulation
- Robust design
- Long-life time-tested components
- Optimally adapted drive concept
- Low-maintenance and repair-friendly
Hot standard screening machine
Hot standard screening machine
Hot-asphalt screening machine by SIEBTECHNIK TEMA with improved dust guard
For the manufacture of standard asphalt-bound base and surface layers stationary, semi-mobile or mobile asphalt mixing systems are employed. These consist essentially of a dry drum, bucket conveyor, screening machine, aggregate silos, weighing and mixing equipment and a shipment loading system.
The aggregates, which make up about 80 to 90 per cent by weight of the asphalt formulation, are heated to the required temperatures in the burner-heated dry drum. The quality of the asphalt layer depends on, amongst other things, the quality of the binding materials and the correct grain composition of the largest component by volume, the grainy aggregates. For this reason the screening machine is of especial importance
The SIEBTECHNIK TEMA type HN screening machine has the advantage that the drive mounting is positioned outside the fixed dust guard enclosure and so outside the heating zone. Hot chippings at temperatures of up to 450 °C have been reliably screened with this system in numerous applications.
Here the right choice of screen cloth and the kind of screen cloth tensioning is also important.
The excellent accessibility of the machines in combination with dust guard covers that enable temperatures to be rapidly lowered are an important requirement for short down-times in cases of maintenance or repair. The dust guard available since 2001 in the new, split version with fully extendable chute carrier brings a further improvement on earlier systems here.
Advantages of our hot standard screening machine:
- Customer-specific concept
- Temperature resistance of the components
- Drive system, screen box and screen cloth to suit the screened material
- Compact design
- Low-clog classification
- Excellent vibration insulation
- Robust design
- Long-life time-tested components
- Optimally adapted drive concept
- Low-maintenance and repair-friendly
Special screening machines
Screening machines for the most varied applications have formed part of our production range for many years.
Even if your screening problems seem unsolvable, you should consult us. A well-trained team of engineers and almost 100 years’ industry-specific experience are at your service.
Accessories for screening machines
There is a comprehensive range of accessories available for all SIEBTECHNIK TEMA screening machines. Whether it’s a spraying system, wear protection, counter-vibration frame, air suspension, dust guard, dust covers, drive consoles, double unbalance gear units, hybrid suspension or special screen cloths – thanks to its decades of experience SIEBTECHNIK TEMA gets you the best result for your requirement
Naturally our machines can be perfectly combined and offer the optimum solution as a package.
Ask us, we’re there for you.
Application
- 针对客户需求的的定制化概念
- 可具有较大机器宽度
- 可装载大颗粒和粗颗粒
- 高筛分性能和高脱水性能
- 适用于特定筛分材料的多种筛网
- 几乎可以使用所有市售的第三方筛网
- 优秀的筛分效果
- 即使带有粗糙的分离切口也较少发生堵塞
- 分类时分离精度高
- 良好的减振性能
- 稳固设计
- 组件通过长寿命时间测试
- 驱动适应性高
- 低维护和易于维修
- 可以集成到现有装置中