What is a Positive and negative pressure mixed pneumatic conveying? Introduction to the advantages, characteristics, and principles of the pneumatic conveying system

Positive and negative pressure mixed pneumatic conveyingis a reliable material conveying equipment for conveying powdery materials under high pressure.，it is widely used in transportation, cast, build a ship, plastic and chemical industry，Cheap and high quality。

1、Brief introduction of Positive and negative pressure mixed pneumatic conveying

Positive and negative pressure mixed pneumatic conveyingis a kind of material conveying equipment which uses the energy of airflow to convey granular or powdery materials along the airflow direction in a closed pipeline.，be loved by our customers.。

Positive and negative pressure mixed pneumatic conveying

2、Positive and negative pressure mixed pneumatic conveying display

Haide Positive and negative pressure mixed pneumatic conveying manufacturing factory。

Positive and negative pressure mixed pneumatic conveying

Note: All the pictures in this article were taken by hyde manufacturer.。

3、Positive and negative pressure mixed pneumatic conveying video detail

hyde powder provides customers with on-site high-definition video, fully demonstrates the advantages of on-site Positive and negative pressure mixed pneumatic conveyingt operation, and helps customers to deeply understand the product production process and production site, and gain favorable comments and recognition from customers.。

Positive and negative pressure mixed pneumatic conveying

As you can see from the live video.，hyde powder the main structure includes dust pelletizing system, Conveying pipeline system, Air source system, Bunker system, delivery system and so on，This productThe overall structural design is simple and novel.。

4、Positive and negative pressure mixed pneumatic conveying application

Positive and negative pressure mixed pneumatic conveyings have the following purposes.

1. Mixing and classification

In the process of conveying, the Positive and negative pressure mixed pneumatic conveying system can cooperate with other equipment to realize the mixing and grading operation of materials, and improve the production efficiency and product quality.

2. Process assistance

In some production processes, Positive and negative pressure mixed pneumatic conveyings are not only used for conveying materials, but also as part of the process. For example, in the chemical and pharmaceutical industries, the Positive and negative pressure mixed pneumatic conveying system can cooperate with other equipment to realize process operations such as mixing, grading, drying and cooling of materials, and improve production efficiency and product quality.

3. Long-distance and multipoint transportation

The Positive and negative pressure mixed pneumatic conveying system can realize long-distance material transportation and meet the demand of long-distance material transfer. At the same time, it can also realize multi-point transportation, that is, materials are collected from multiple locations and transported to a centralized point, or materials are dispersed from a centralized point to multiple locations. This flexibility makes Positive and negative pressure mixed pneumatic conveyings have important application value in large factories and cross-regional material transportation.

4. material handling

Positive and negative pressure mixed pneumatic conveying system is widely used in conveying all kinds of powdery, granular and small block materials. These materials include, but are not limited to, cement, fly ash, grain, plastic particles, ore, pulverized coal, pharmaceutical powder, etc. Through the pipeline system, these materials can be efficiently and continuously transported from one place to another, greatly reducing the complexity and cost of manual handling and mechanical transportation.

5. Dust removal and purification

The Positive and negative pressure mixed pneumatic conveying system is usually equipped with a dust collector to collect and treat the dust generated in the transportation process to keep the production environment clean and hygienic.

Positive and negative pressure mixed pneumatic conveying

5、Positive and negative pressure mixed pneumatic conveying structure composition

The Positive and negative pressure mixed pneumatic conveying has the following structure

1. Feeding device

The feeding device is responsible for feeding materials evenly and stably into the conveying pipeline. It is usually installed at the beginning of the system, and uses the negative pressure or positive pressure formed by the air source device to mix materials with air in a certain proportion and send them into the pipeline. Common feeding devices include rotary valves, screw conveyors, rotary feeders, screw pumps, silo pumps and Venturi nozzles. The selection of feeding device should be considered comprehensively according to the characteristics of materials and transportation requirements.

2. Conveying pipeline system

The conveying pipeline is a channel for conveying materials after mixing with airflow. It is made of wear-resistant and corrosion-resistant materials to ensure that the materials will not be polluted or damaged during transportation. The diameter, shape and length of the pipeline will be designed according to the characteristics and delivery capacity of the transported materials. In addition, the pipeline system may also include some auxiliary fittings, such as valves, elbows, expansion joints, etc., for regulating air flow and pipeline connection.

3. Bunker system

The silo temporarily stores and releases materials. The silo is usually designed as a pyramid or conical structure to facilitate the storage and unloading of materials. The design of silo needs to consider the different problems of materials in the process of storage and unloading and the flow form of materials.

4. Air source device

The air source device is the power core of the Positive and negative pressure mixed pneumatic conveying system, which provides the airflow power needed for transportation. Common air source equipment includes roots blower, compressor, centrifugal blower and water ring vacuum pump. These devices can generate stable airflow and provide sufficient power for the transportation of materials.

5. Feeding device

The feeding device is responsible for feeding materials evenly and stably into the conveying pipeline. It is usually installed at the beginning of the system, and uses the negative pressure or positive pressure formed by the air source device to mix materials with air in a certain proportion and send them into the pipeline. Common feeding devices include rotary valves, screw conveyors, rotary feeders, screw pumps, silo pumps and Venturi nozzles. The selection of feeding device should be considered comprehensively according to the characteristics of materials and transportation requirements.

Positive and negative pressure mixed pneumatic conveying

Positive and negative pressure mixed pneumatic conveyingat the start of the operation,Compressed air or other gases are passed through the air supply device to generate airflow, forming a certain airflow speed and pressure. Subsequently, the material is sent into the conveying pipeline through the feeding device, and under the action of the airflow, the material particles are suspended in the airflow or flow along the pipeline in groups. This gas-solid two-phase flow state enables materials to be transported to the target position along the pipeline.，is a common Positive and negative pressure mixed pneumatic conveying，the main features are automation, energy saving and environmental protection, Wide range of conveying materials, Less maintenance. and High productivity。