蜜臀国产在线观看

　　在经济持续快速发展的大背景下，一些行业在生产运输的过程当中产生的环境污染越来越得到重视，如水泥厂、制药厂、食品加工厂等运输的颗状物、粉粒料等。在这种情况下，气力输送技术得到了逐步的推广。气力输送代替了传统的机械输送物料，它是一种采用密封式输送管道的方式输送物料的工艺过程。

　　Against the backdrop of sustained and rapid economic development, environmental pollution generated during the production and transportation processes in some industries, such as cement plants, pharmaceutical plants, food processing plants, etc., is receiving increasing attention. In this situation, pneumatic conveying technology has gradually been promoted. Pneumatic conveying has replaced traditional mechanical conveying of materials, and it is a process that uses sealed conveying pipelines to transport materials.

　　气力输送

　　Pneumatic conveying

　　气力输送是一种借助压缩气流在管道内输送散体颗粒的物料搬运技术，是实现散体物料绿色、安全、便捷输送运输的有效措施。气力输送的第一次大规模应用是19世纪后期的谷物真空输送，到20年代中期，谷物的负压和正压输送已很普遍。自此以后，气力输送技术蓬勃发展，输送物料范畴扩展到涵盖各种各样的固体颗粒。该技术在应用过程中，以下优势逐渐突出：无尘绿色、走线灵活、多点配送、成本低廉、安全可靠、易于自动控制。

　　Pneumatic conveying is a material handling technology that uses compressed air flow to transport loose particles in pipelines. It is an effective measure to achieve green, safe, and convenient transportation of loose materials. The first large-scale application of pneumatic conveying was grain vacuum conveying in the late 19th century. By the mid-1920s, negative and positive pressure conveying of grains had become common. Since then, pneumatic conveying technology has flourished, and the scope of conveying materials has expanded to cover various solid particles. In the application process, the following advantages of this technology gradually become prominent: dust-free and green, flexible wiring, multi-point distribution, low cost, safety and reliability, and easy automatic control.

　　蜜臀国产在线观看构成

　　Composition of pneumatic conveying system

　　蜜臀国产在线观看主要由四部分组成：动力源、供料装置、输送装置、分离装置，每个部分都需要专用硬件设备来实现所需的要求。进行一次完整的气力输送，需要依次完成：动力源提供压缩气流—供料器供给物料颗粒—输送装置完成管道运输与分流—分离装置将物料颗粒与气流分离。

　　The pneumatic conveying system mainly consists of four parts: power source, feeding device, conveying device, and separation device, each of which requires dedicated hardware equipment to achieve the required requirements. To carry out a complete pneumatic conveying, it is necessary to complete the following steps in sequence: the power source provides compressed air flow, the feeder supplies material particles, the conveying device completes pipeline transportation and diversion, and the separation device separates material particles from the air flow.

　　蜜臀国产在线观看构成示意图

　　Schematic diagram of pneumatic conveying system composition

　　动力源是蜜臀国产在线观看中必不可少的元件，包括各种类型的压缩机、鼓风机、风扇和真空泵等。在蜜臀国产在线观看设计时，需要确定实现可靠输送所需的气流和压力（正压或负压）。

　　The power source is an essential component in pneumatic conveying systems, including various types of compressors, blowers, fans, and vacuum pumps. When designing a pneumatic conveying system, it is necessary to determine the airflow and pressure (positive or negative) required to achieve reliable conveying.

　　在供料装置，根据物料颗粒运动在不同区域内变化规律的不同，可以将供料装置内部区域划分为混合区、加速区、稳定输送区。在混合区，固体颗粒被引入流动的气流中。由于固体进入流场时基本上处于静止状态，因此当固体与流动的气体混合时会发生较大的动量变化，这种势能变化是加速区的主要特征。加速区通常由一段一定长度的水平管道组成，被设计用于加速固体颗粒到某种“稳定”流动状态。

　　In the feeding device, the internal area of the feeding device can be divided into a mixing zone, an acceleration zone, and a stable conveying zone based on the different patterns of material particle movement in different regions. In the mixing zone, solid particles are introduced into the flowing airflow. Due to the fact that solids enter the flow field in a basically static state, significant momentum changes occur when they mix with flowing gases, and this potential energy change is the main characteristic of the acceleration zone. The acceleration zone is usually composed of a horizontal pipeline of a certain length, designed to accelerate solid particles to a certain "stable" flow state.

　　在气固分离装置内，物料颗粒从气流中分离出来。分离工作主要借助特定的气固分离系统完成，选择合适的气固分离系统取决于许多因素，其中最重要的是固体颗粒的大小。根据固体颗粒特性的不同，可以使用许多不同配置的气固分离系统分离物料。旋风分离器以其几何简单、分离效果好、维护方便和价格低廉的优点，在工业中广泛用于从气体中分离灰尘或用于产物回收。

　　In the gas-solid separation device, material particles are separated from the gas flow. The separation work is mainly accomplished through specific gas-solid separation systems, and the selection of a suitable gas-solid separation system depends on many factors, among which the most important is the size of solid particles. According to the different characteristics of solid particles, many different configurations of gas-solid separation systems can be used to separate materials. Cyclone separators are widely used in industry for separating dust from gases or for product recycling due to their advantages of simple geometry, good separation efficiency, easy maintenance, and low cost.

　　蜜臀国产在线观看分类及应用

　　Classification and Application of Pneumatic Conveying Systems

　　1、按照输送实质分类

　　1. Classified according to the essence of transportation

　　由于输送物料种类不同，对应的气力输送的种类也非常多。但整体概括来看，气力输送可以分为四类：筒式气力输送、稀相气力输送、浓相动压气力输送、浓相静压气力输送。

　　Due to the different types of conveyed materials, there are also many corresponding types of pneumatic conveying. But overall, pneumatic conveying can be divided into four categories: cylinder pneumatic conveying, dilute phase pneumatic conveying, dense phase dynamic pressure pneumatic conveying, and dense phase static pressure pneumatic conveying.

　　筒式气力输送按照装料筒的类型可分为有轮传输筒、无轮传输筒两类。在输送时，先将物料装到传输筒中，之后使传输筒在管道中通过空气的静压作用进行高速滑行。筒式气力输送适用于输送一些不易悬浮并且自身无法成栓的成件货物，其应用范围较小。

　　Cylinder pneumatic conveying can be divided into two types according to the type of loading cylinder: wheeled conveying cylinder and non wheeled conveying cylinder. During transportation, the material is first loaded into the conveyor drum, and then the conveyor drum slides at high speed through the static pressure of air in the pipeline. Cylinder pneumatic conveying is suitable for conveying some finished goods that are not easily suspended and cannot be tied up by themselves, and its application range is relatively small.

　　稀相气力输送也被称为稀相动压输送，因为物料的运输依靠高速空气形成的动能。一般采用气流的速度为12词40尘/蝉，料气比为1词5，最大值为15。稀相气力输送通常适用于输送距离较短，被输送的物料处于干燥的易流动的状态，并且其质量与颗粒大小均较小的情况。

　　Dilute phase pneumatic conveying, also known as dilute phase dynamic pressure conveying, relies on the kinetic energy generated by high-speed air for material transportation. Generally, the airflow velocity is 12-40m/s, the material to gas ratio is 1-5, and the maximum value is 15. Dilute phase pneumatic conveying is usually suitable for situations where the conveying distance is short, the conveyed material is in a dry and easy to flow state, and its mass and particle size are small.

　　在浓相动压蜜臀国产在线观看中，管道中的物料以密集状态依靠空气动能进行输送，管道不会因物料密集而堵塞，气流速度在8词15尘/蝉。这样流动状态的气力输送装置主要有高压压送式、高真空吸送式和流态化气力输送装置。料气比（通过管道截面的物料与空气的流量比值）范围较大，前两者的料气比范围为15词20，第叁种用于输送粉状物料，料气比在200以上。

　　In the dense phase dynamic pressure pneumatic conveying system, the material in the pipeline is transported in a dense state relying on the kinetic energy of air, and the pipeline will not be blocked due to the dense material. The airflow velocity is between 8-15m/s. The pneumatic conveying devices in such a flowing state mainly include high-pressure pressure conveying, high vacuum suction conveying, and fluidized pneumatic conveying devices. The range of material to air ratio (the ratio of the flow rate of material to air through the cross-section of the pipeline) is relatively large. The first two have a material to air ratio range of 15-20, while the third type is used for conveying powdered materials with a material to air ratio of over 200.

　　在浓相静压气力输送中，物料密集并且栓塞管道，依靠着空气的静压来输送物料。浓相静压气力输送分为栓流和柱流两种。栓流气力输送是目前中距离输送方式中最好的输送技术，它通过人为的操作预先将料柱切割，使料柱长度变短。在输送物料过程中，气栓和料栓间隔分开使得料栓输送速度得以提高，输送压力得以降低，物料的输送距离得以提高。在柱流气力输送装置中，物料以密集状态接续不断地充满管道，进而形成料柱，输送时物料移动速度仅有0.2词2尘/蝉，因此仅适用于30米以内的短距离输送。

　　In dense phase static pressure pneumatic conveying, materials are densely packed and blocked in pipelines, relying on the static pressure of air to transport materials. Dense phase static pressure pneumatic conveying is divided into two types: plug flow and column flow. Plug flow pneumatic conveying is currently the best conveying technology among medium distance conveying methods. It involves manually cutting the material column in advance to shorten its length. During the process of conveying materials, the separation of air plugs and material plugs allows for an increase in the conveying speed of the material plugs, a decrease in conveying pressure, and an increase in the conveying distance of the materials. In the column flow pneumatic conveying device, the material continuously fills the pipeline in a dense state, forming a material column. The material movement speed during conveying is only 0.2~2m/s, so it is only suitable for short distance conveying within 30 meters.

　　2、按照输送装置分类

　　2. According to the classification of conveying devices

　　按照蜜臀国产在线观看的输送装置类型（空气在管道中的压力状态）来分可将蜜臀国产在线观看分为叁类：正压式输送、负压式输送和混合输送。

　　According to the type of conveying device (pressure state of air in the pipeline) of the pneumatic conveying system, it can be divided into three categories: positive pressure conveying, negative pressure conveying, and mixed conveying.

　　正压式输送一般是指在输送系统的前端借助压缩机或鼓风机产生压缩空气，进而形成管道起点与终点间的压差，气流裹挟着物料输送至接料处，最后物料与空气在接料处分离。正压式输送系统中，物料不直接经过风机，所以输送物料不会导致风机被磨损并且风机的叶片也不会导致物料破碎。正压式蜜臀国产在线观看常用于面粉厂产物的输送。

　　Positive pressure conveying generally refers to the use of a compressor or blower to generate compressed air at the front end of the conveying system, thereby forming a pressure difference between the starting and ending points of the pipeline. The airflow carries the material to the receiving point, and finally separates the material from the air at the receiving point. In a positive pressure conveying system, materials do not directly pass through the fan, so conveying materials will not cause the fan to wear out and the blades of the fan will not cause material breakage. Positive pressure pneumatic conveying system is commonly used for conveying products in flour mills.

　　负压式输送一般将真空泵安装在系统的末端，由于环境压力大于管道压力，由真空泵引起的负压差将空气与物料吸入管道中，并被送至分离器进行分离，空气由上部排出送入除尘器净化，而物料则由分离器底部卸出。负压输送适用于从多处向一处集中输送物料。该系统常用于白糖、豆类、米类等物料的运输。其次，因输送气流的压力比大气压力要低，水分易蒸发，与正压输送式相比，该系统更容易输送含水分多的物料。除此之外，该系统还适用于船舶、火车等卸料，应用范围十分广泛。

　　Negative pressure conveying generally installs a vacuum pump at the end of the system. Due to the ambient pressure being greater than the pipeline pressure, the negative pressure difference caused by the vacuum pump sucks air and materials into the pipeline and sends them to the separator for separation. The air is discharged from the upper part and sent to the dust collector for purification, while the materials are discharged from the bottom of the separator. Negative pressure conveying is suitable for transporting materials from multiple locations to a centralized location. This system is commonly used for the transportation of materials such as white sugar, beans, and rice. Secondly, due to the lower pressure of the conveying airflow compared to atmospheric pressure, moisture is easily evaporated. Compared with positive pressure conveying, this system is easier to transport materials with higher moisture content. In addition, the system is also suitable for unloading materials from ships, trains, etc., with a wide range of applications.

　　在一个输送系统中由负压式和正压式两部分组成，通过利用两种不同系统的优势组成的系统称为混合输送系统。混合式蜜臀国产在线观看通常应用于较为复杂的输送当中。

　　A mixed conveying system consists of two parts, negative pressure and positive pressure, and is formed by utilizing the advantages of these two different systems. Hybrid pneumatic conveying systems are typically used in more complex conveying systems.

　　小结：

　　厂耻尘尘补谤测:

　　蜜臀国产在线观看已深入到现代化产业生产的各领域，成为建材、化工、粮食、冶金、采矿、环保、轻工、能源等行业普遍使用的方法。如何使蜜臀国产在线观看在满足生产要求的同时能够稳定运行、低速、低耗，是如今对蜜臀国产在线观看研究的主要趋势。可以毫不夸张的说，蜜臀国产在线观看技术的发展及应用，前景不可限量。在经济持续快速发展的大背景下，一些行业在生产运输的过程当中产生的环境污染越来越得到重视，如水泥厂、制药厂、食品加工厂等运输的颗状物、粉粒料等。在这种情况下，气力输送技术得到了逐步的推广。气力输送代替了传统的机械输送物料，它是一种采用密封式输送管道的方式输送物料的工艺过程。

　　The pneumatic conveying system has penetrated into various fields of modern industrial production, becoming a widely used method in industries such as building materials, chemical, grain, metallurgy, mining, environmental protection, light industry, and energy. How to ensure stable operation, low speed, and low consumption of pneumatic conveying systems while meeting production requirements is currently the main trend in research on pneumatic conveying systems. It can be said without exaggeration that the development and application of pneumatic conveying system technology have unlimited prospects. Against the backdrop of sustained and rapid economic development, environmental pollution generated during the production and transportation processes in some industries, such as cement plants, pharmaceutical plants, food processing plants, etc., is receiving increasing attention. In this situation, pneumatic conveying technology has gradually been promoted. Pneumatic conveying has replaced traditional mechanical conveying of materials, and it is a process that uses sealed conveying pipelines to transport materials.

　　气力输送

　　Pneumatic conveying

　　气力输送是一种借助压缩气流在管道内输送散体颗粒的物料搬运技术，是实现散体物料绿色、安全、便捷输送运输的有效措施。气力输送的第一次大规模应用是19世纪后期的谷物真空输送，到20年代中期，谷物的负压和正压输送已很普遍。自此以后，气力输送技术蓬勃发展，输送物料范畴扩展到涵盖各种各样的固体颗粒。该技术在应用过程中，以下优势逐渐突出：无尘绿色、走线灵活、多点配送、成本低廉、安全可靠、易于自动控制。

　　Pneumatic conveying is a material handling technology that uses compressed air flow to transport loose particles in pipelines. It is an effective measure to achieve green, safe, and convenient transportation of loose materials. The first large-scale application of pneumatic conveying was grain vacuum conveying in the late 19th century. By the mid-1920s, negative and positive pressure conveying of grains had become common. Since then, pneumatic conveying technology has flourished, and the scope of conveying materials has expanded to cover various solid particles. In the application process, the following advantages of this technology gradually become prominent: dust-free and green, flexible wiring, multi-point distribution, low cost, safety and reliability, and easy automatic control.

　　蜜臀国产在线观看构成

　　Composition of pneumatic conveying system

　　蜜臀国产在线观看主要由四部分组成：动力源、供料装置、输送装置、分离装置，每个部分都需要专用硬件设备来实现所需的要求。进行一次完整的气力输送，需要依次完成：动力源提供压缩气流—供料器供给物料颗粒—输送装置完成管道运输与分流—分离装置将物料颗粒与气流分离。

　　The pneumatic conveying system mainly consists of four parts: power source, feeding device, conveying device, and separation device, each of which requires dedicated hardware equipment to achieve the required requirements. To carry out a complete pneumatic conveying, it is necessary to complete the following steps in sequence: the power source provides compressed air flow, the feeder supplies material particles, the conveying device completes pipeline transportation and diversion, and the separation device separates material particles from the air flow.

　　蜜臀国产在线观看构成示意图

　　Schematic diagram of pneumatic conveying system composition

　　动力源是蜜臀国产在线观看中必不可少的元件，包括各种类型的压缩机、鼓风机、风扇和真空泵等。在蜜臀国产在线观看设计时，需要确定实现可靠输送所需的气流和压力（正压或负压）。

　　The power source is an essential component in pneumatic conveying systems, including various types of compressors, blowers, fans, and vacuum pumps. When designing a pneumatic conveying system, it is necessary to determine the airflow and pressure (positive or negative) required to achieve reliable conveying.

　　在供料装置，根据物料颗粒运动在不同区域内变化规律的不同，可以将供料装置内部区域划分为混合区、加速区、稳定输送区。在混合区，固体颗粒被引入流动的气流中。由于固体进入流场时基本上处于静止状态，因此当固体与流动的气体混合时会发生较大的动量变化，这种势能变化是加速区的主要特征。加速区通常由一段一定长度的水平管道组成，被设计用于加速固体颗粒到某种“稳定”流动状态。

　　In the feeding device, the internal area of the feeding device can be divided into a mixing zone, an acceleration zone, and a stable conveying zone based on the different patterns of material particle movement in different regions. In the mixing zone, solid particles are introduced into the flowing airflow. Due to the fact that solids enter the flow field in a basically static state, significant momentum changes occur when they mix with flowing gases, and this potential energy change is the main characteristic of the acceleration zone. The acceleration zone is usually composed of a horizontal pipeline of a certain length, designed to accelerate solid particles to a certain "stable" flow state.

　　在气固分离装置内，物料颗粒从气流中分离出来。分离工作主要借助特定的气固分离系统完成，选择合适的气固分离系统取决于许多因素，其中最重要的是固体颗粒的大小。根据固体颗粒特性的不同，可以使用许多不同配置的气固分离系统分离物料。旋风分离器以其几何简单、分离效果好、维护方便和价格低廉的优点，在工业中广泛用于从气体中分离灰尘或用于产物回收。

　　In the gas-solid separation device, material particles are separated from the gas flow. The separation work is mainly accomplished through specific gas-solid separation systems, and the selection of a suitable gas-solid separation system depends on many factors, among which the most important is the size of solid particles. According to the different characteristics of solid particles, many different configurations of gas-solid separation systems can be used to separate materials. Cyclone separators are widely used in industry for separating dust from gases or for product recycling due to their advantages of simple geometry, good separation efficiency, easy maintenance, and low cost.

　　蜜臀国产在线观看分类及应用

　　Classification and Application of Pneumatic Conveying Systems

　　1、按照输送实质分类

　　1. Classified according to the essence of transportation

　　由于输送物料种类不同，对应的气力输送的种类也非常多。但整体概括来看，气力输送可以分为四类：筒式气力输送、稀相气力输送、浓相动压气力输送、浓相静压气力输送。

　　Due to the different types of conveyed materials, there are also many corresponding types of pneumatic conveying. But overall, pneumatic conveying can be divided into four categories: cylinder pneumatic conveying, dilute phase pneumatic conveying, dense phase dynamic pressure pneumatic conveying, and dense phase static pressure pneumatic conveying.

　　筒式气力输送按照装料筒的类型可分为有轮传输筒、无轮传输筒两类。在输送时，先将物料装到传输筒中，之后使传输筒在管道中通过空气的静压作用进行高速滑行。筒式气力输送适用于输送一些不易悬浮并且自身无法成栓的成件货物，其应用范围较小。

　　Cylinder pneumatic conveying can be divided into two types according to the type of loading cylinder: wheeled conveying cylinder and non wheeled conveying cylinder. During transportation, the material is first loaded into the conveyor drum, and then the conveyor drum slides at high speed through the static pressure of air in the pipeline. Cylinder pneumatic conveying is suitable for conveying some finished goods that are not easily suspended and cannot be tied up by themselves, and its application range is relatively small.

　　稀相气力输送也被称为稀相动压输送，因为物料的运输依靠高速空气形成的动能。一般采用气流的速度为12词40尘/蝉，料气比为1词5，最大值为15。稀相气力输送通常适用于输送距离较短，被输送的物料处于干燥的易流动的状态，并且其质量与颗粒大小均较小的情况。

　　Dilute phase pneumatic conveying, also known as dilute phase dynamic pressure conveying, relies on the kinetic energy generated by high-speed air for material transportation. Generally, the airflow velocity is 12-40m/s, the material to gas ratio is 1-5, and the maximum value is 15. Dilute phase pneumatic conveying is usually suitable for situations where the conveying distance is short, the conveyed material is in a dry and easy to flow state, and its mass and particle size are small.

　　在浓相动压蜜臀国产在线观看中，管道中的物料以密集状态依靠空气动能进行输送，管道不会因物料密集而堵塞，气流速度在8词15尘/蝉。这样流动状态的气力输送装置主要有高压压送式、高真空吸送式和流态化气力输送装置。料气比（通过管道截面的物料与空气的流量比值）范围较大，前两者的料气比范围为15词20，第叁种用于输送粉状物料，料气比在200以上。

　　In the dense phase dynamic pressure pneumatic conveying system, the material in the pipeline is transported in a dense state relying on the kinetic energy of air, and the pipeline will not be blocked due to the dense material. The airflow velocity is between 8-15m/s. The pneumatic conveying devices in such a flowing state mainly include high-pressure pressure conveying, high vacuum suction conveying, and fluidized pneumatic conveying devices. The range of material to air ratio (the ratio of the flow rate of material to air through the cross-section of the pipeline) is relatively large. The first two have a material to air ratio range of 15-20, while the third type is used for conveying powdered materials with a material to air ratio of over 200.

　　在浓相静压气力输送中，物料密集并且栓塞管道，依靠着空气的静压来输送物料。浓相静压气力输送分为栓流和柱流两种。栓流气力输送是目前中距离输送方式中最好的输送技术，它通过人为的操作预先将料柱切割，使料柱长度变短。在输送物料过程中，气栓和料栓间隔分开使得料栓输送速度得以提高，输送压力得以降低，物料的输送距离得以提高。在柱流气力输送装置中，物料以密集状态接续不断地充满管道，进而形成料柱，输送时物料移动速度仅有0.2词2尘/蝉，因此仅适用于30米以内的短距离输送。

　　In dense phase static pressure pneumatic conveying, materials are densely packed and blocked in pipelines, relying on the static pressure of air to transport materials. Dense phase static pressure pneumatic conveying is divided into two types: plug flow and column flow. Plug flow pneumatic conveying is currently the best conveying technology among medium distance conveying methods. It involves manually cutting the material column in advance to shorten its length. During the process of conveying materials, the separation of air plugs and material plugs allows for an increase in the conveying speed of the material plugs, a decrease in conveying pressure, and an increase in the conveying distance of the materials. In the column flow pneumatic conveying device, the material continuously fills the pipeline in a dense state, forming a material column. The material movement speed during conveying is only 0.2~2m/s, so it is only suitable for short distance conveying within 30 meters.

　　2、按照输送装置分类

　　2. According to the classification of conveying devices

　　按照蜜臀国产在线观看的输送装置类型（空气在管道中的压力状态）来分可将蜜臀国产在线观看分为叁类：正压式输送、负压式输送和混合输送。

　　According to the type of conveying device (pressure state of air in the pipeline) of the pneumatic conveying system, it can be divided into three categories: positive pressure conveying, negative pressure conveying, and mixed conveying.

　　正压式输送一般是指在输送系统的前端借助压缩机或鼓风机产生压缩空气，进而形成管道起点与终点间的压差，气流裹挟着物料输送至接料处，最后物料与空气在接料处分离。正压式输送系统中，物料不直接经过风机，所以输送物料不会导致风机被磨损并且风机的叶片也不会导致物料破碎。正压式蜜臀国产在线观看常用于面粉厂产物的输送。

　　Positive pressure conveying generally refers to the use of a compressor or blower to generate compressed air at the front end of the conveying system, thereby forming a pressure difference between the starting and ending points of the pipeline. The airflow carries the material to the receiving point, and finally separates the material from the air at the receiving point. In a positive pressure conveying system, materials do not directly pass through the fan, so conveying materials will not cause the fan to wear out and the blades of the fan will not cause material breakage. Positive pressure pneumatic conveying system is commonly used for conveying products in flour mills.

　　负压式输送一般将真空泵安装在系统的末端，由于环境压力大于管道压力，由真空泵引起的负压差将空气与物料吸入管道中，并被送至分离器进行分离，空气由上部排出送入除尘器净化，而物料则由分离器底部卸出。负压输送适用于从多处向一处集中输送物料。该系统常用于白糖、豆类、米类等物料的运输。其次，因输送气流的压力比大气压力要低，水分易蒸发，与正压输送式相比，该系统更容易输送含水分多的物料。除此之外，该系统还适用于船舶、火车等卸料，应用范围十分广泛。

　　Negative pressure conveying generally installs a vacuum pump at the end of the system. Due to the ambient pressure being greater than the pipeline pressure, the negative pressure difference caused by the vacuum pump sucks air and materials into the pipeline and sends them to the separator for separation. The air is discharged from the upper part and sent to the dust collector for purification, while the materials are discharged from the bottom of the separator. Negative pressure conveying is suitable for transporting materials from multiple locations to a centralized location. This system is commonly used for the transportation of materials such as white sugar, beans, and rice. Secondly, due to the lower pressure of the conveying airflow compared to atmospheric pressure, moisture is easily evaporated. Compared with positive pressure conveying, this system is easier to transport materials with higher moisture content. In addition, the system is also suitable for unloading materials from ships, trains, etc., with a wide range of applications.

　　在一个输送系统中由负压式和正压式两部分组成，通过利用两种不同系统的优势组成的系统称为混合输送系统。混合式蜜臀国产在线观看通常应用于较为复杂的输送当中。

　　A mixed conveying system consists of two parts, negative pressure and positive pressure, and is formed by utilizing the advantages of these two different systems. Hybrid pneumatic conveying systems are typically used in more complex conveying systems.

　　小结：

　　厂耻尘尘补谤测:

　　蜜臀国产在线观看已深入到现代化产业生产的各领域，成为建材、化工、粮食、冶金、采矿、环保、轻工、能源等行业普遍使用的方法。如何使蜜臀国产在线观看在满足生产要求的同时能够稳定运行、低速、低耗，是如今对蜜臀国产在线观看研究的主要趋势。可以毫不夸张的说，蜜臀国产在线观看技术的发展及应用，前景不可限量。

　　The pneumatic conveying system has penetrated into various fields of modern industrial production and become a commonly used method in industries such as building materials, chemical, grain, metallurgy, mining, environmental protection, light industry, and energy. How to ensure stable operation, low speed, and low consumption of pneumatic conveying systems while meeting production requirements is currently the main trend in research on pneumatic conveying systems. It can be said without exaggeration that the development and application of pneumatic conveying system technology have unlimited prospects.

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