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氣力輸送工程

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

羅茨風(fēng)機(jī)振動如何解決

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;

旋轉(zhuǎn)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

飛灰氣力輸送系統(tǒng)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

粉煤灰氣力輸送系統(tǒng)的灰?guī)煸O(shè)計

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

氣力輸送機(jī)設(shè)備

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

羅茨風(fēng)機(jī)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

糧食行業(yè)氣力輸送

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

氣力輸送羅茨風(fēng)機(jī)

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

氣力輸送除塵器

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

稀相氣力輸送的基本設(shè)計原則

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

氣力輸送設(shè)備風(fēng)量及風(fēng)壓計算

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

正壓稀相氣力輸送

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

面粉氣力輸送系統(tǒng)的應(yīng)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

氣力輸送堵塞問題如何解決

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

機(jī)械及冶金行業(yè)氣力輸送應(yīng)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

氣力輸送糧食，煙草行業(yè)應(yīng)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

集裝容器氣力輸送系統(tǒng)

Container pneumatic conveying system

In order to improve management level, container pneumatic conveying devices can be used for the transportation of office documents, hospital laboratory test reports, postal telegraph reports and other objects in offices, hospitals, postal and other departments. There are three types of pneumatic conveying devices: double connected, direct, and mainline. Double connected type is a double tube used for transporting container containers between two connection points. Its characteristic is that it has a large transportation volume, and each conveying pipe can transport several container containers in one direction at the same time. Direct type has reverse

氣力輸送技術(shù)在礦山的應(yīng)用

Application of pneumatic conveying technology in mines

The application of pneumatic conveying in mines includes: pneumatic elevators for extracting miscellaneous coal underground, pneumatic filling of filling materials after coal mining, and pneumatic conveying of dry ground mineral powder in beneficiation plants. In order to prevent the subsidence of the strata in coal mines and the formation of voids after mining, which may affect the safety of people and property on the ground, the method of backfilling is adopted. The new process of pneumatic filling is increasingly widely used both domestically and internationally. The scope of application for pneumatic filling should be based on geological conditions, and full filling can be used

氣力輸送技術(shù)在鐵路工程的應(yīng)用

Application of Pneumatic Conveying Technology in Railway Engineering

In the current high-speed railway trains, due to the steep slope of the track and climate changes such as snow or rain, the adhesion friction coefficient between the vehicle and the track decreases. To prevent wheel slippage, the driver opens the valve of the sand storage box on the locomotive and sprays sand onto the contact surface between the track and the wheel to increase friction and ensure the normal operation of the train. The new diesel locomotives are equipped with sand storage tanks, with 5 sand storage tanks on each side of the locomotive head, for a total of 10 on both sides. The sanding system for locomotives generally

電爐炭粉氣力輸送技術(shù)

Electric furnace carbon powder pneumatic conveying technology

In order to improve the melting efficiency of electric furnace, strengthen smelting, reduce power consumption and reduce material consumption, foam slag submerged arc operation technology is adopted in 100t electric furnace. The system mainly consists of an intermediate silo, a sending tank, electronic weighing, electronic control, and an air circuit system. The silo is a cylindrical silo with a capacity of 5 square meters, used for storing carbon powder. The top is equipped with a triangular knife that can cut the material bag, and the top of the cylinder is equipped with a filter screen that can screen out particles larger than 3mm. It also has a pneumatic arch breaking device, a level gauge

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