气力输送系统借助气体动力，在密闭管道中实现物料高效运输，适用物料类型广泛，涵盖颗粒状、粉末状、纤维状等多种形态，在化工、食品、冶金、农业等领域作用显著。系统通过调节气流速度、管道直径与压力参数，适配不同物理特性的物料，避免受潮、污染，实现长距离、自动化运输，解决传统机械输送在复杂工况下的局限。

　　The pneumatic conveying system utilizes gas power to achieve efficient transportation of materials in closed pipelines. It is suitable for a wide range of material types, including granular, powdered, fibrous, and other forms, and plays a significant role in fields such as chemical engineering, food, metallurgy, and agriculture. The system adapts to materials with different physical characteristics by adjusting airflow velocity, pipeline diameter, and pressure parameters, avoiding moisture and pollution, achieving long-distance and automated transportation, and solving the limitations of traditional mechanical conveying in complex working conditions.

　　颗粒状物料是气力输送的主要对象，这类物料流动性好、不易结块，适合气流推动。农业领域中，小麦、玉米、水稻等谷物的输送很常见，系统能将谷物从田间暂存点输送至仓库，或在加工车间内衔接各环节，减少人工搬运损耗。矿业与建材行业中，石英砂、石灰石颗粒、塑料颗粒等也常用气力输送，这类物料硬度高，需选用耐磨管道，控制气流速度减少磨损，多用于生产线各工序间的物料转移。

　　Granular materials are the main objects of pneumatic conveying, which have good fluidity, are not easy to agglomerate, and are suitable for airflow propulsion. In the agricultural field, the transportation of grains such as wheat, corn, and rice is very common. The system can transport grains from temporary storage points in the field to warehouses or connect various links in the processing workshop to reduce manual handling losses. In the mining and building materials industry, pneumatic conveying is also commonly used for materials such as quartz sand, limestone particles, and plastic particles. These materials have high hardness and require the use of wear-resistant pipelines to control airflow velocity and reduce wear. They are often used for material transfer between various processes on production lines.

　　粉末状物料的运输依赖系统密闭性，可防止粉尘泄漏。化工行业中，纯碱、小苏打、洗衣粉等粉末通过低压稀相输送系统运输，利用低压气流将粉末悬浮在管道中，适合短距离、小流量输送，配备的过滤器可回收粉尘，满足环保要求。食品行业中，面粉、淀粉、奶粉等的输送需采用食品级不锈钢管道，内壁光滑无死角，气流经净化处理，确保物料卫生安全，常用于面粉厂、奶粉生产线的物料输送。

　　The transportation of powdered materials relies on the airtightness of the system, which can prevent dust leakage. In the chemical industry, powders such as soda ash, baking soda, and laundry detergent are transported through a low-pressure dilute phase conveying system. The powder is suspended in pipelines using low-pressure airflow, making it suitable for short distance and low flow transportation. The equipped filter can recover dust and meet environmental protection requirements. In the food industry, the transportation of flour, starch, milk powder, etc. requires the use of food grade stainless steel pipes with smooth inner walls and no dead corners. The airflow is purified to ensure material hygiene and safety, and is commonly used for material transportation in flour mills and milk powder production lines.

　　纤维状与絮状物料的输送需解决缠绕与堵塞问题，通过特殊设计实现稳定运输。纺织行业中，棉纤维、化纤短纤维可采用脉冲气力输送，通过周期性气流脉冲推动纤维前进，避免堆积，管道转弯处采用大曲率半径设计，减少缠绕风险，用于纺纱车间内纤维的工序间输送。造纸行业中，木浆纤维的输送需调整气流湿度，防止脆化断裂，常与脱水设备配合，提升生产效率。

　　The transportation of fibrous and flocculent materials requires solving the problems of entanglement and blockage, and achieving stable transportation through special design. In the textile industry, cotton fibers and synthetic short fibers can be transported by pulse pneumatic conveying, which pushes the fibers forward through periodic air flow pulses to avoid accumulation. The pipeline bends are designed with a large curvature radius to reduce the risk of entanglement and is used for inter process transportation of fibers in spinning workshops. In the papermaking industry, the transportation of wood pulp fibers requires adjusting the airflow humidity to prevent embrittlement and breakage. It is often combined with dewatering equipment to improve production efficiency.

　　浆状与膏状物料在特定条件下也可运输，这类物料流动性差，需结合机械辅助。食品加工中，番茄酱、果酱等浆体可采用浓相气力输送，通过高压气流与活塞式推送结合，分段输送，适合短距离运输，避免传统泵输送的物料残留。化工行业中，颜料膏、密封胶等膏状物料的输送需在管道入口设搅拌装置，防止凝固，控制管道温度降低粘度，确保均匀流动，用于涂料生产线的原料输送。

　　Slurry and paste materials can also be transported under specific conditions, but these materials have poor fluidity and require mechanical assistance. In food processing, tomato sauce, jam and other slurries can be transported by dense phase pneumatic conveying, which combines high-pressure airflow with piston push and segmented conveying, suitable for short distance transportation, and avoids material residue from traditional pump conveying. In the chemical industry, the transportation of paste like materials such as pigment paste and sealant requires the installation of a stirring device at the inlet of the pipeline to prevent solidification, control the temperature of the pipeline to reduce viscosity, ensure uniform flow, and be used for raw material transportation in coating production lines.

　　特殊物料的运输体现了系统的适应性，在高温、易爆等工况下有优势。高温物料如水泥熟料、粉煤灰的输送，需选用耐高温管道与密封件，系统可直接连接窑炉出口，减少热量损失。易爆物料如煤粉、铝粉的输送需采用惰性气体作为介质，避免空气混合达到爆炸极限，管道接地消除静电，安全性高于机械输送。

　　The transportation of special materials reflects the adaptability of the system and has advantages in high temperature, explosive and other working conditions. The transportation of high-temperature materials such as cement clinker and fly ash requires the use of high-temperature resistant pipelines and seals. The system can be directly connected to the kiln outlet to reduce heat loss. The transportation of explosive materials such as coal powder and aluminum powder requires the use of inert gas as the medium to avoid air mixing reaching the explosive limit. Pipeline grounding eliminates static electricity, and the safety is higher than mechanical transportation.

　　气力输送系统通过调整参数适应不同物料，运输能力与距离范围广。选择物料时，需综合考虑其特性，匹配对应的输送方式，确保系统高效稳定运行，满足环保、安全与卫生要求，为各行业提供定制化解决方案。

　　The pneumatic conveying system adapts to different materials by adjusting parameters, with a wide range of transportation capacity and distance. When selecting materials, it is necessary to comprehensively consider their characteristics, match corresponding conveying methods, ensure efficient and stable operation of the system, meet environmental, safety, and hygiene requirements, and provide customized solutions for various industries.

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