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螺旋輸送機(jī)具有以下特點(diǎn)：
1）結(jié)構(gòu)比較簡(jiǎn)單，成本較低。
2）工作可靠，維護(hù)管理簡(jiǎn)便。
3）尺寸緊湊，斷面尺寸小，占地面積小。在港口的卸車(chē)卸船作業(yè)中易進(jìn)出艙口、車(chē)廂。
4）能實(shí)現(xiàn)密封輸送，有利于輸送易飛揚(yáng)的、熾熱的及氣味強(qiáng)烈的物料，可減小對(duì)環(huán)境的污染，改善港口工人的作業(yè)條件。
5）裝載卸載方便。水平螺旋輸送機(jī)可在其輸送線路上的任一點(diǎn)裝載卸載；對(duì)垂直螺旋輸送機(jī)配置相對(duì)螺旋式取料裝置可具有優(yōu)良的取料性能。
6）能逆向輸送，也可使一臺(tái)輸送機(jī)同時(shí)向兩個(gè)方向輸送物料，即集向中心或遠(yuǎn)離中心。
7）單位能耗較大。
8）物料在輸送過(guò)程中易于研碎及磨損，螺旋葉片和料槽的磨損也較為嚴(yán)重。
螺旋輸送機(jī)結(jié)構(gòu)特征：
（1）螺旋輸送機(jī)的螺旋葉片有實(shí)體螺旋面型、帶式螺旋面型及葉片螺旋面型三種。實(shí)體螺旋面稱(chēng)為s制法，其螺旋節(jié)距GX型為葉片直徑的0.8倍，LS型螺旋輸送機(jī)適用于輸送粉狀和粒狀物料。帶式螺旋面又稱(chēng)D制法，其螺旋節(jié)距與螺旋葉片直徑相同，適用于輸送粉狀及小塊物料。葉片式螺旋面應(yīng)用較少，主要用于輸送粘度較大和可壓縮性物料，在輸送過(guò)程中，同時(shí)完成攪拌、混合等工序，其螺旋節(jié)距約為螺旋葉片直徑的1.2倍。
（2）螺旋輸送機(jī)的螺旋葉片有左旋與右旋兩種旋向。
螺旋輸送機(jī)的應(yīng)用：
螺旋輸送機(jī)廣泛應(yīng)用于糧食工業(yè)、建筑材料工業(yè)、化學(xué)工業(yè)、機(jī)械制造業(yè)、交通運(yùn)輸業(yè)等國(guó)民經(jīng)濟(jì)各部門(mén)中。螺旋輸送機(jī)主要用于輸送各種粉狀、粒狀、小塊狀物料，所輸送的散粒物料有谷物、豆類(lèi)、面粉等糧食產(chǎn)品，水泥、粘土、沙子等建筑材料，鹽類(lèi)、堿類(lèi)、化肥等化學(xué)品，以及煤、焦炭、礦石等大宗散貨。螺旋輸送機(jī)不宜輸送易變質(zhì)的、粘性大的、塊度大的及易結(jié)塊的物料。除了輸送散粒物料外，亦可利用螺旋輸送機(jī)來(lái)運(yùn)送各種成件物品。螺旋輸送機(jī)在輸送物料的同時(shí)可完成混合、攪拌、冷卻等作業(yè)。在港口，螺旋輸送機(jī)主要用于卸車(chē)、卸船作業(yè)以及倉(cāng)庫(kù)內(nèi)散粒物料的水平和垂直輸送。利用與物料直接接觸的水平螺旋軸將物料逐層從車(chē)廂兩側(cè)卸下的螺旋卸車(chē)機(jī)在國(guó)內(nèi)港口已有多年的成功使用經(jīng)驗(yàn)。由水平螺旋輸送機(jī)、垂直螺旋輸送機(jī)以及相對(duì)螺旋取料裝置組成的螺旋卸船機(jī)，已成為一種較為先進(jìn)的連續(xù)卸船機(jī)型，日益廣泛地應(yīng)用于國(guó)內(nèi)外散貨專(zhuān)用碼頭。
Application of screw conveyor:
Screw conveyor is widely used in grain industry, building materials industry, chemical industry, machinery manufacturing industry, transportation industry and other sectors of the national economy. The screw conveyor is mainly used for conveying various powder, granular and small pieces of materials. The bulk materials conveyed are grain, beans, flour and other grain products, cement, clay, sand and other building materials, salts, alkalis, fertilizers and other chemicals, as well as coal, coke, ore and other bulk goods. The screw conveyor is not suitable for conveying deteriorating, viscous, lumpy and caking materials. In addition to conveying granular materials, screw conveyors can also be used to transport various finished goods. The screw conveyor can complete mixing, mixing, cooling and other operations while conveying materials. In ports, screw conveyors are mainly used for unloading, unloading and horizontal and vertical transportation of granular materials in warehouses. The screw unloader which unloads the material layer by layer from both sides of the carriage by using the horizontal screw shaft in direct contact with the material has been successfully used in domestic ports for many years. The screw ship unloader, which consists of horizontal screw conveyor, vertical screw conveyor and relative screw feeding device, has become a more advanced type of continuous ship unloader, and is increasingly widely used in special bulk terminals at home and abroad.