Spray Tower

Spray tower, also known as washing tower, absorption tower or purification tower, is a common industrial waste gas treatment equipment, mainly used to treat industrial waste gas containing harmful gases. It contacts the waste gas by spraying liquid, so that the harmful substances in the waste gas are absorbed or neutralized, thereby achieving the purpose of purifying the waste gas. The following is a detailed description of the introduction, composition structure, working process and advantages of the spray tower.

Introduction

The spray tower is a wet dust removal equipment, mainly used to treat harmful substances such as dust and odor in industrial waste gas. It captures and dissolves harmful substances in the waste gas in water by spraying water mist to achieve the purpose of purifying the waste gas. Spray towers are widely used in chemical, pharmaceutical, food processing, electronic manufacturing and other industries, and are one of the important equipment in the field of environmental protection.

Composition Structure

Tower body: The main part of the spray tower is usually made of corrosion-resistant materials, such as fiberglass, stainless steel, etc. There are multiple spray layers and packing layers inside the tower body to increase the contact area and time between the waste gas and the spray liquid.

Spray system: including spray pump, nozzle and pipe, responsible for delivering spray liquid to the inside of the tower, and forming fine water mist particles through the nozzle for better contact with the exhaust gas.

Packing layer: the packing layer located inside the tower, usually composed of multi-faceted hollow balls, Raschig rings and other fillers. The packing layer can increase the contact area between the exhaust gas and the spray liquid and improve the absorption efficiency.

Demister: the demister located at the top of the tower, used to remove water mist from the exhaust gas. The demister usually consists of multiple blades, which can condense the water mist into water droplets and collect them.

Control system: including temperature sensors, pressure sensors and flow sensors, etc., used to monitor and control the operation status of the spray tower. The control system can automatically adjust the spray volume according to the flow and concentration of the exhaust gas to ensure stable and reliable purification effect.

Working Process

Exhaust gas introduction: the exhaust gas containing harmful substances is introduced into the bottom of the spray tower through a fan or natural ventilation.

Spray liquid spraying: the spray pump is started to deliver the spray liquid to the nozzle inside the tower. The nozzle atomizes the spray liquid into fine water mist particles and sprays them evenly on the packing layer.

Gas-liquid contact: The waste gas fully contacts the spray liquid during its rise in the packing layer. The water and additives in the spray liquid can absorb or neutralize the harmful substances in the waste gas, thereby achieving the purpose of purifying the waste gas.

Demisting treatment: The waste gas treated by the packing layer continues to rise and enters the demister area. The demister condenses the water mist in the waste gas into water droplets and collects them to prevent the water from being discharged with the waste gas.

Emission: The waste gas after demisting treatment is discharged from the top of the tower body and meets the emission standards. At the same time, the collected water droplets can be recycled or discharged to a designated location.

Advantages

Efficient purification: The spray tower can effectively absorb and neutralize the harmful substances in the waste gas through the full contact between the spray liquid and the waste gas, thereby achieving an efficient purification effect.

Wide range of application: The spray tower is suitable for the treatment of various industrial waste gases, especially for waste gases containing harmful substances such as dust and odor.

Easy operation: The operation of the spray tower is relatively simple. You only need to regularly replace the spray liquid and filler to keep the equipment running normally. At the same time, the maintenance cost of the spray tower is relatively low.

Energy saving and environmental protection: The spray tower uses spray liquid as the purification medium, which will not produce secondary pollution and meet environmental protection requirements. At the same time, the spray tower has low energy consumption and can save energy costs.

Customizable design: The spray tower can be customized according to different exhaust gas components and treatment requirements to meet the needs of different customers. For example, the spray volume and filler type can be adjusted according to the flow rate and concentration of the exhaust gas to achieve the best purification effect.

High safety: The spray tower is made of corrosion-resistant materials and has high durability and stability. At the same time, the spray tower is also equipped with multiple safety protection measures, such as overload protection, leakage protection, etc., which can ensure the safe operation of the equipment and the safety of the operator.

Easy to install and maintain: The spray tower has a compact structure and a small footprint, which is easy to install and move. At the same time, the maintenance of the spray tower is also relatively simple. You only need to regularly check and replace wearing parts to keep the equipment running normally.

In summary, the spray tower has become one of the important equipment in the field of industrial waste gas treatment due to its advantages such as high efficiency purification, wide application range and easy operation.

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