带式干燥机简介

带式干燥机是大批生产用的连续式干燥设备,用于透气性较好的片状、条状、颗粒状和部分膏状物料的

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带式干燥机技术

新加坡Tictec带式干燥机

  带式干燥机,木屑,颗粒,木片及其他的物料

  低温带式干燥机

  低温干燥锯末,木屑,树皮,刨花等生物质与低卡路里的热量,带式干燥机是一种高效的系统。低排放和高品质的最终产品具有低功耗值的石碑带式干燥机技术的显着优势。

  产品进 产品流 产品转向装置 产品dischargge 湿式清洗系统 网络带 清新的空气摄入量 热空气发生,热交换器 排气烟囱

1。工艺简介:

  湿产物被连续供给到干燥器中。两个传送带螺丝分布在第一个潮湿的产品,不断跨越带的宽度和长度。合适的床的深度是可变的调节,因此,可以最优地适应于各自的要求,快速和容易。

  分配后,该产品被输送到干燥区由皮带进料的装置。干燥器隧道内,所产生的热空气流过的产品。热空气所产生的从可用的加热介质的热交换器的装置。期间的热空气流过的产品层,水分被干燥关闭对流,并通过对空气的流动,其中冷却下来所必要的撤出热量。

  空气的同时可以测量出精确地沿着的总长度,从而适于优化各自的干燥部。若干径向的风扇(multivent系统)提供了一个准确的空气沿干燥器的总长度测量。得多的空气在进料区(湿区域)需要比在出料区。适应这些要求非常有效地利用干燥用空气,并提高了工作效率。

  产物层通风从顶部向底部。罚款分离的产品层本身,就像一个过滤器垫。此外,在传送带过滤器排出的空气的第二时间。

  为了实现尽可能均匀的干燥产品,产物层被移动并混合后,以受控的方式证明转弯的移动设备通过烘干机的长度的一半。因此,干的上层和有些潮湿的底部层之间有一个平衡。这保证了一个非常均匀的干燥产物在干燥机出口处为一个高质量的最终产品的生产。

  通过干燥区后,该产品被排出。它属于从传送带成conveyour螺钉,并作进一步处理除去。

  从进料和排料区的干燥区被密封关闭,因此只有很少的泄漏。此外,在轻微的压力低,所以,没有泄漏的空气的排放量是可能的,整个干燥和热空气区被操作。

2。产品水分控制:

  对于造粒,一个恒定的干燥产物中的水分是必需的。由于初始水分含量的产品是有所变化,一个自动的水分控制安装。

  干燥器出口处的产品湿度进行控制和监视的连续测量。将传送带的速度是通过控制齿轮电机的频率和无级变速适应不同的初始含水量。带速,因此吞吐量高水分含量的降低,而皮带的速度上升,增加吞吐量,较低的初始水分。

  此控制保证一个恒定的水分的干燥的产品和最佳的利用所提供的热能。

  吞吐量可以通过以下来控制节流由客户提供的热能,从而使的蒸发量,从而可以调整干燥产品的输出,没有任何问题。

3。清洁:

  干燥带清洁连续干洗以及作为不连续的湿清洗的装置。

  干洗性是通过吹皮带系统,该系统去除细小的灰尘颗粒在排出侧从多孔干燥带。清洁靠馈送到排出的产物。

  对于进一步清洁皮带,一个高压湿清洗系统被使用。一个旋转的环形喷嘴被指控约。 180巴的高压泵的装置。所产生的水射流清洗皮带可靠地粘存款(如resing,木质素,油脂)。整个皮带宽度由气动线性驱动和旋转喷嘴移动,因此可以清洁整个皮带。脏水收集由收集盘和由客户通过排水管排出。

  Belt Dryer for Sawdust, Pellets, Wood Chips and other Biomasses

  Low-temperature belt dryer

  The low-temperature belt dryer is a highly-efficient system for drying sawdust, wood chips, bark, wood shavings and other biomasses with low-caloric heat. Low emissions as well as a high-quality final product with low consumption values are the striking advantages of the STELA belt dryer technology.

  product feed product flow product turning device product dischargge wet cleaning system web belt fresh air intake hot air generation, heat exchanger exhaust air chimneys 1. Process
description:

  The wet product is fed continuously into the dryer. Two conveyor screws distribute at first the wet product constantly across the belt width and level it. The suitable bed depth is variably adjustable and can thus be optimally adapted to the respective requirements fast and easily.

  After distribution, the product is conveyed into the drying zone by means of the belt feed.
Within the dryer tunnel, the generated hot air flows through the product. The hot air is generated by means of a heat exchanger from the available heating medium. During the hot air flows through the product layer, the moisture is dried off convectively and passed on to the air flow, which cools down by the necessary withdrawal of heat.

  While air can be measured out exactly along the total length and thus adapted optimally to the respective drying section. Several radial fans (multivent system) provide an exact air measuring along the total length of the dryer. Much more air is required in the feeding zone (wet zone) than in the discharge zone. An adaption to these requirements utilizes the drying air very effectively and increases the efficiency.

  The product layer is ventilated from top to bottom. Fines are separated by the product layer itself, like a filter mat. Additionally, the conveyor belt filters the exhaust air a second time.

  In order to achieve a dry product as homogeneous as possible, the product layer is shifted and mixed in a controlled manner after half the length of the dryer by means of a proven turning device. Thus there is a balance between the dry upper layer and the somewhat moister bottom layer. This guarantees a very homogeneous dry product at the dryer outlet for the production of a high-quality final product.

  Having passed the drying zone, the product is discharged. It falls from the conveyor belt into a conveyour screw and is removed for further processing.

  The drying zone is sealed off from the feed and discharge zone; consequently there are only very few leakages. Additionally, the whole drying and hot air zone is operated in slight low-pressure so that no emission of leakage air is possible.

2. Control of the product moisture:

  For pelletizing, a constant moisture of the dry product is required. As the initial moisture content of the product is subject to variations, an automatic moisture control is installed.

  The product moisture at the dryer outlet is controlled and monitored by continuous measuring.

  The belt speed is infinitely variable via a frequency controlled gear motor and adapted to different initial moistures. The belt speed and consequently the throughput decreases with high moisture contents, whereas the belt speed rises with increasing throughput with lower initial moistures.

  This control guarantees a constant moisture of the dry product and optimum utilization of the supplied heat energy.

  The throughput can be controlled by throttling the heat energy supplied by customer, so that the evaporative capacity and consequently the output of dry product can be adjusted without any problems.

3. Cleaning:

  The drying belt is cleaned by means of a continuous dry cleaning as well as a discontinuous wet cleaning.

  The dry cleaning is carried out by a belt blowing system, which removes fine dust particles from the perforated drying belt at discharge side. The cleaning rests are fed to the discharged product.

  For further cleaning of the belt, a high-pressure wet cleaning system is used. A rotating ring nozzle is charged with approx. 180 bar by means of a high-pressure pump. The generated water jet cleans the belt reliably from sticking deposits (like resing, lignins, grease). The rotating nozzle moves across the belt width by a pneumatic linear drive and can thus clean the whole belt. The dirty water is collected by a collecting tray and discharged by customer via a drain pipe.

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