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气力输送系统故障分析

Fault analysis of pneumatic conveying system

The pneumatic conveying system has obvious advantages in conveying powdered materials and is one of the effective ways to transport bulk powdered materials. The reasons for the failure of the pneumatic conveying system can be summarized as follows: firstly, insufficient understanding of the characteristics of the conveyed material, leading to unreasonable selection of conveying methods; Secondly, there are issues with the design parameters and equipment manufacturing technology, which pose a risk of malfunctions; Thirdly, there is a lack of correct operation and scientific understanding of pneumatic conveying systems and equipment

脉冲除尘器的选择

Selection of pulse dust collector

Pulse dust collectors are suitable for placement at the top of various powder storage warehouses to collect various small dry dust, making them an efficient purification device; It adopts pulse cleaning technology, has the advantages of high gas processing capacity, good purification effect, simple structure, and reliable operation, and is an indispensable component of pneumatic conveying systems. Pulse dust collectors have many uses and handle different types of dust, so the filter bag materials used are also different. How to choose a pulse dust collector? A high

什么是叶轮式供料器

What is a impeller feeder

The impeller feeder is one of the pneumatic conveying feeding equipment, which consists of a casing body, impeller, transmission device, sealing ring, etc. The upper end of the casing is the feeding port connected to the hopper, and the lower end is the discharging port. The rotating impeller is the main working component, which separates the inlet and outlet ports, allowing materials to smoothly enter the conveying pipe under positive pressure without overflowing. When the rotary feeder is working, the material is discharged from the hopper above and falls between two blades. With the rotation of the blades

粉体的输送方式有那些

What are the transportation methods for powders

How to choose powder conveying and which method is most suitable for powder conveying, which requires moving consistent materials and meeting production requirements at the same speed. This requires a technology that maximizes production while maintaining a safe working environment. The key factors to consider in the selection process include: the properties of the material to be moved, the intended use of the conveyor belt, environmental factors that may affect the conveyor design, and powder vacuum conveyors

气力输送工程

Pneumatic conveying engineering

Pneumatic conveying is a method of using airflow to transport powder and granular materials in pipelines. Pneumatic conveying engineering is a conveying equipment device that uses airflow as a carrier to transport materials, such as powder and granular materials. Pneumatic conveying engineering is often divided into suction type (also known as negative pressure or suction type) and pressure type (also known as positive pressure) according to the pressure state of air in the pipeline. It can also be classified into mixed suction and pressure type (also known as positive negative pressure mixed type) and closed cycle type according to demand. Suction type

罗茨风机振动如何解决

How to solve the vibration of Roots blower

Roots blower, as a gas power source for pneumatic conveying system or a local system, occupies a core position in process layout; The laying of pipelines, the matching of accessories, and the selection of other related equipment must all consider the requirements and impacts of Roots blowers. The main causes of vibration during the operation of the Roots blower are: 1) rotor imbalance; 2) The center of the fan is not aligned with the prime mover or the gearbox; 3) Bearing oil film oscillation; 4) Axis resonance;

旋转供料器

rotary feeder

In the powder pneumatic conveying system, the unloading device, also known as the unloader, is a device used to discharge materials and dust, and has the function of preventing external air from entering the pneumatic conveying system during the unloading process. The unloading device is originally understood as a specialized unloading equipment (unloader), and can also be understood as other equipment with this function. The unloading device is used for continuous unloading of pneumatic conveying, and the rotary feeder, also known as the unloader, can continuously feed in the pneumatic conveying system. After the system is completed

飞灰气力输送系统堵塞的原因有那些

What are the reasons for blockage in the fly ash pneumatic conveying system

We have discussed the use of pneumatic conveying systems in the metallurgical industry to transport fly ash and commonly used conveying types. Although this system has many advantages, problems are inevitable during long-term operation. Today, we will learn about the reasons for blockages in fly ash pneumatic conveying systems in the thermal power generation industry: 1 Firstly, the stability of the air source: as the flow rate of the conveying air decreases, the velocity of the fly ash particles also decreases, resulting in uneven flow and irregular pulsation, causing the fly ash particles to begin to pipe

粉煤灰气力输送系统的灰库设计

Design of Ash Storage for Fly Ash Pneumatic Conveying System

According to the characteristics of pneumatic conveying, the ash silo should be located as close as possible to the static dust collector area. Coal fired power plants attach great importance to the factory environment, and fly ash has become a commodity for external sales. Therefore, the conveying distance needs to be determined according to the specific conditions of the project. The design of power plant fly ash storage silo is determined based on process requirements. Shandong Juheng Environmental Protection Equipment Co., Ltd. often classifies the design according to the pressure, function, bottom shape, structural form, etc. of the ash silo. Classification of Work Pressure in Ash Storage

气力输送机设备

Pneumatic Conveyor Equipment

The pipeline, sealing, and automation of powder and granular material transportation are the development directions of modern bulk material transportation technology, and pneumatic conveying technology is undoubtedly one of the best ways to achieve powder and granular material logistics technology. The most significant feature of pneumatic conveyor equipment is that the power source is an airflow with a certain amount of energy, which simplifies traditional complex mechanical devices; Secondly, there is enclosed pipeline transportation with simple and flexible layout; The third is that there is no circuit. Pneumatic conveying is based on the

罗茨风机的工作原理

Working principle of Roots blower

In powder pneumatic conveying systems such as pharmaceuticals, food, chemicals, and petrochemicals, Roots blowers are used as gas source equipment for low-pressure conveying systems; According to the system process requirements, the Roots blower is used for positive pressure, which plays a positive pressure blowing role, while the Roots vacuum pump is used for negative pressure. In addition to its application in pneumatic conveying systems, Roots blowers use airtight sealing devices to transport gases other than air, such as hydrogen, oxygen, coal gas, etc; Of course

粮食行业气力输送

Pneumatic conveying in the grain industry

Pneumatic conveying is widely used in grain processing plants, oil processing plants, and feed processing plants in the grain industry. The customization of grain pneumatic conveyors is based on the specific conveying materials and the equipment selected according to the process. We need to clarify the method of pneumatic conveying system to select the equipment. The commonly used methods are as follows: 1 Suction pneumatic conveying, also known as negative pressure pneumatic conveying, is used for lifting and short distance conveying of materials; two Mobile pneumatic conveying, commonly used in dock grain suction machines

气力输送罗茨风机

Pneumatic conveying Roots blower

The type of pneumatic conveying fan is determined based on the conveying process, and it is the air source equipment of the conveying system; The negative pressure pneumatic conveying system adopts the form of negative pressure suction. The Roots vacuum pump installed at the end of the system serves as the air source equipment. After the fan runs, the entire system forms negative pressure. The pressure difference between the air inside and outside the pipeline is sucked into the conveying pipe; At the same time, the material and a portion of the air are sucked in by the suction nozzle and transported to the separator, where

气力输送除尘器

Pneumatic conveying dust collector

The bag filter used for collecting dust in pneumatic conveying is an efficient dust collector, mainly applied in circular bag filter. The bag filter in pneumatic conveying system is designed with a large amount of powder, a larger ash hopper volume and discharge port diameter, and sufficient capacity for dust discharge device to avoid powder retention in the ash hopper. There are corresponding measures for dust removal pneumatic conveying of special dust, such as moisture absorbing and deliquescent dust, one of the special dust: moisture absorption and

稀相气力输送的基本设计原则

Basic design principles of dilute phase pneumatic conveying

Pneumatic conveying systems can be divided into dilute phase, dense phase (dense phase), pressure feeding, suction feeding, low pressure, high pressure, and negative pressure; There are many factors to consider in the design of dilute phase pneumatic conveying, so it should be flexibly applied while adhering to basic principles, and not blindly applied to avoid neglecting one aspect; When necessary, multiple options should be discussed to select the most suitable and comprehensive solution; Let's talk about the basic principles of designing dilute phase pneumatic conveying with the grain industry as the main body. 1. Root

气力输送设备风量及风压计算

Calculation of air volume and pressure for pneumatic conveying equipment

In dilute phase pneumatic conveying, we generally choose Roots blower as the power source equipment. Roots blower is a positive displacement air machine, so its pressure rise is high and the flow rate is small and stable, suitable for long-distance pneumatic conveying. The smaller air volume is conducive to using high concentration conveying and the tail gas dust collector has a smaller processing capacity. In addition, during the operation of Roots blowers, there is almost no other frictional motion except for transmission mechanisms such as bearings and gears, so the mechanical efficiency is high, there are few vulnerable parts, and the service life is long

正压稀相气力输送

Positive pressure dilute phase pneumatic conveying

Positive pressure conveying (also known as pressure conveying system) in dilute phase pneumatic conveying has the characteristics of feeding from one place to multiple places, flexible direction, and suitable for long-distance pneumatic conveying. Compared with traditional mechanical conveying, it also has the characteristics of simple structure, flexible configuration, less equipment quantity, small space occupation, easy maintenance, and no dead corners. Therefore, pneumatic conveying is often used in modern industrial production to transport materials, such as in the grain industry where specialized powder plants, finished products, and by-products enter

面粉气力输送系统的应用

Application of flour pneumatic conveying system

The technology of using airflow with a certain speed and pressure to transport bulk materials through pipelines in a flour pneumatic conveying system is called pneumatic conveying, which is one of the material handling methods. Due to the formation of wind by the airflow, pneumatic conveying is also commonly known as an air conveying system. The pneumatic conveying system is widely used in flour mills, not only for conveying wheat and flour, but also for grading, selection, and crushing operations; Below are the specific application types of flour pneumatic conveying in Shandong Juheng Environmental Protection Equipment Co., Ltd

气力输送堵塞问题如何解决

How to solve the problem of blockage in pneumatic conveying

The types of arching and the reasons for preventing powder arching blockage are numerous and complex, which can be roughly summarized into four types, as shown in the figure. 1) Compression arch. The compression of the powder reduces the porosity, resulting in arching due to the increased strength of the powder itself. 2) Wedge shaped arch. The arching caused by the local force balance of granular materials. 3) Adhesive bonding arch. Materials with strong adhesion, due to their moisture content, moisture absorption, or static electricity, not only adhere to the warehouse wall but also undergo consolidation pressure

机械及冶金行业气力输送应用

Application of pneumatic conveying in mechanical and metallurgical industries

The application of mechanical and metallurgical industries in mechanical or metallurgical industries requires timely and rapid analysis of chemical composition for steelmaking or molten iron melting. Generally, manual transfer takes an average of 4-8 minutes, accounting for 40% to 60% of the entire sample analysis time, which affects the testing cycle. Container type pneumatic conveying can shorten the time by more than 90% compared to manual transfer. The pneumatic conveying of the above departments often uses single tube and multi tube pressure conveying devices with bidirectional conveying. According to the number of melting equipment

气力输送粮食，烟草行业应用

Pneumatic conveying of grain, application in tobacco industry

The application of grain and tobacco industries in the grain processing process requires chemical technology inspection of raw materials and semi-finished products. Throughout the production process, samples are continuously taken and analyzed through pneumatic conveying in container containers. Milk products and margarine both require sampling and testing, which can be conveyed using a double connected container pneumatic conveying device. The weight of this container does not exceed 0.4kg, with a maximum diameter of 69mm and an airflow velocity of 13m/s. After using pneumatic conveying, it can