BH-PLG series upper exhaust spray granulation dryer

BH-PLG系列上排风喷雾造粒干燥机

In-depth analysis of efficient integrated solution provider of Jiangsu Bohong Drying Company

江苏博鸿干燥公司高效集成解决方案提供商的深度剖析

First, equipment overview and principle

一、设备概述与原理

The upper exhaust air spray granulation dryer is an advanced equipment that integrates spray, drying and granulation. It is widely used in chemical, pharmaceutical, food and new materials fields.

上排风喷雾造粒干燥机是一种集喷雾、干燥、造粒于一体的*设备，广泛应用于化工、制药、食品及新材料等领域。

Its working principle is based on the basic principle of spray drying, that is, the liquid material is atomized into tiny droplets by high pressure or air flow, and then the water is rapidly evaporated in the hot air at high temperature, while the specific process conditions are used to promote the condensation of the droplets into particles.

其工作原理基于喷雾干燥的基本原理，即通过高压或气流将液体物料雾化成微小液滴，随后在高温热风中迅速蒸发水分，同时利用特定工艺条件促进液滴凝结成颗粒。

The equipment adopts the design of upper exhaust air, which effectively improves the drying efficiency and product quality, and reduces the pollution risk of materials in the drying process.

该设备采用上排风设计，有效提升了干燥效率和产品质量，减少了物料在干燥过程中的污染风险。

Second, spray system structure

二、喷雾系统构造

Spray system is one of the core components of the up-exhaust spray granulation dryer, which is mainly composed of high pressure pump (or airflow nozzle), atomizer and liquid distribution device.

喷雾系统是上排风喷雾造粒干燥机的核心部件之一，主要由高压泵（或气流喷嘴）、雾化器及液体分配装置组成。

The high pressure pump pressurizes the liquid material to a certain pressure, and squirts it into tiny droplets through the atomizer;

高压泵将液体物料加压至一定压力，通过雾化器喷射成微小雾滴；

The jet nozzle uses high-speed air flow to break the liquid into a mist.

气流喷嘴则利用高速气流将液体破碎成雾状。

The design and selection of atomizer directly affect the uniformity and drying effect of droplets, which is one of the key factors of equipment performance.

雾化器的设计和选型直接影响到雾滴的均匀性和干燥效果，是设备性能的关键因素之一。

Third, granulation chamber design

三、造粒室设计

The granulation chamber is the key area for the material to form particles.

造粒室是物料形成颗粒的关键区域。

The design should consider the distribution of air flow, the uniformity of temperature field and the residence time of materials.

其设计需考虑气流的分布、温度场的均匀性以及物料的停留时间等因素。

Usually, the granulation room is equipped with a multi-layer structure to guide the flow of air and material under a specific path, promoting collision and bonding between droplets to form stable particles.

通常，造粒室内设有多层结构，以引导气流和物料在特定路径下流动，促进液滴间的碰撞和粘结，从而形成稳定的颗粒。

In addition, the granulation chamber also needs to have good sealing and thermal insulation properties to ensure the stability of the drying process.

此外，造粒室还需具备良好的密封性和隔热性能，以保证干燥过程的稳定进行。

Fourth, upper exhaust air circulation system

四、上排风循环系统

The upper exhaust air circulation system is the unique feature of the equipment.

上排风循环系统是该设备的独特之处。

The system exhausts the hot and wet air in the drying room through the top exhaust, while introducing fresh air for replenishment and heating, forming a closed cycle.

该系统通过顶部排风口将干燥室内的热湿空气排出，同时引入新鲜空气进行补充和加热，形成闭路循环。

This design helps to reduce heat loss and exhaust emissions, and improve energy efficiency.

这种设计有利于减少热能损失和废气排放，提高能源利用效率。

At the same time, the upper exhaust mode also helps to avoid contamination of the material during the drying process and improve the purity and safety of the product.

同时，上排风方式还有助于避免物料在干燥过程中受到污染，提高产品的纯净度和安全性。

Heating and temperature control system

五、加热与温控系统

The heating and temperature control system is responsible for providing a stable heat source for the drying process and controlling the temperature in the drying room.

加热与温控系统负责为干燥过程提供稳定的热源，并控制干燥室内的温度。

The system is usually composed of heat source equipment (such as steam heater, electric heater, etc.), temperature sensor, controller and actuator.

该系统通常由热源设备（如蒸汽加热器、电加热器等）、温度传感器、控制器及执行机构组成。

By precisely controlling the supply of heat source and the feedback signal of temperature sensor, the system can automatically adjust the temperature in the drying room to meet the drying requirements of different materials.

通过精确控制热源的供应量和温度传感器的反馈信号，系统能够自动调节干燥室内的温度，以满足不同物料的干燥要求。

6. Collection and separation device

六、收集与分离装置

The collection and separation unit is used to separate the dried particles from the exhaust gas and collect the finished particles.

收集与分离装置用于将干燥后的颗粒与废气分离，并收集成品颗粒。

Common collection methods include bag dust collector, cyclone separator and so on.

常见的收集方式包括布袋除尘器、旋风分离器等。

These devices can effectively remove dust and small particles in the exhaust gas, ensuring that the exhaust gas meets the national environmental standards.

这些装置能够有效地去除废气中的粉尘和微小颗粒，保证排放的废气符合国家环保标准。

At the same time, the collected finished particles are sent to the next process through a conveyor system or packaged for storage.

同时，收集到的成品颗粒通过输送系统送至下一道工序或进行包装储存。

Seven, automatic control system

七、自动化控制系统

Automatic control system is an important part of modern up-exhaust spray granulation dryer.

自动化控制系统是现代上排风喷雾造粒干燥机的重要组成部分。

The system integrates PLC (programmable logic controller), touch screen human-machine interface, sensor and actuator and other advanced equipment to achieve full automatic operation of the equipment.

该系统集成了PLC（可编程逻辑控制器）、触摸屏人机界面、传感器及执行机构等*设备，实现了设备的全自动化操作。

Users only need to set the process parameters, the system can automatically complete the whole process control from feeding, spraying, drying, granulation to discharge, greatly improving the production efficiency and product quality stability.

用户只需设定好工艺参数，系统即可自动完成从进料、喷雾、干燥、造粒到出料的全过程控制，大大提高了生产效率和产品质量稳定性。

Eight, maintenance and maintenance points

八、维护与保养要点

In order to ensure the long-term stable operation of the upper exhaust spray granulation dryer and extend the life of the equipment, regular maintenance and maintenance are required.

为确保上排风喷雾造粒干燥机的长期稳定运行和延长设备寿命，需定期进行维护与保养。

The main maintenance points include: regular cleaning of dust and residue in the spray system and pelletizing room;

主要保养要点包括：定期清理喷雾系统和造粒室内的积尘和残留物；

Inspect and replace worn parts;

检查并更换磨损的零部件；

Maintain the normal operation of heating and temperature control system;

保持加热与温控系统的正常运行；

Periodically check the filtration effect of the collection and separation device;

定期检查收集与分离装置的过滤效果；

And regularly calibrate the accuracy of the sensor and the actuator.

以及定期校准传感器和执行机构的精度等。

Through scientific and reasonable maintenance and maintenance measures, the performance advantages of the equipment can be maximized and greater economic benefits can be created for enterprises.

通过科学合理的维护与保养措施，可以*大限度地发挥设备的性能优势，为企业创造更大的经济效益。

As a well-known drying equipment manufacturer in the industry, Jiangsu Bohong has always been committed to the research and development and innovation of spray drying technology since its establishment.

江苏博鸿作为业界知名的干燥设备制造商，自成立以来，始终致力于喷雾干燥技术的研发与创新。

Bohong company has a high-quality R & D team and advanced production equipment, with deep industry experience and excellent technical strength, in the field of spray drying established a good reputation.

博鸿公司拥有一支高素质的研发团队和*的生产设备，凭借深厚的行业经验和*的技术实力，在喷雾干燥领域树立了良好的口碑。

Jiangsu Bohong is customer-oriented, focusing on providing efficient, stable and environmentally friendly spray drying solutions for chemical, pharmaceutical, food, new materials and other industries.

江苏博鸿以客户需求为导向，专注于为化工、制药、食品、新材料等行业提供高效、稳定、环保的喷雾干燥解决方案。

Spray drying is one of the core equipment manufactured by Jiangsu Bohong.

喷雾干燥是江苏博鸿制造的核心设备之一。

Bohong adopts advanced atomization system and heat exchange technology to ensure that the material is evenly refined and quickly dried in a short time, effectively retaining the nutrients and active substances in the material.

博鸿公司采用*的雾化系统和热能交换技术，确保物料在短时间内被均匀细化并迅速干燥，有效保留物料中的营养成分和活性物质。

Bohong's spray drying equipment has the advantages of high drying efficiency, low energy consumption and stable product quality, which can meet the diversified needs of different customers for drying effects.

博鸿公司的喷雾干燥设备具有干燥效率高、能耗低、产品质量稳定等优点，能够满足不同客户对干燥效果的多样化需求。