Air Exhaust System for Prilling Towers

Product Specifications

Technical details and manufacturing context for Air Exhaust System

Definition

The Air Exhaust System is a critical component of a Prilling Tower designed to extract and remove air, moisture vapor, dust, and other airborne particulates generated during the prilling (spray cooling/solidification) process. It maintains controlled atmospheric conditions within the tower chamber, prevents condensation, ensures product quality by removing fines, and supports safe operation by venting process gases. The system typically uses induced or forced draft fans to create negative pressure within the tower, drawing air and entrained particles upwards from the prilling zone. The exhaust stream passes through ductwork and often through cyclones, bag filters, or scrubbers to remove particulates and/or absorb gases before being discharged to the atmosphere or recirculated. This directory entry provides reference ranges for key parameters, which must be verified for the specific model and application. The system is available in materials such as carbon steel and stainless steel (e.g., 304, 316L). Reference parameters include air flow rate (15000–30000 m³/h), static pressure (800–1200 Pa), operating temperature (-10–80 °C), fan speed (1450–2900 rpm), motor power (15–45 kW), voltage (380–690 V AC), noise level (75–85 dB(A)), filtration efficiency (95–99.5%), material (304–316L SS), and weight (800–1500 kg). Standards such as ISO 5801, IEC 60034, IEC 60038, ISO 3744, ISO 16890, and ASTM A240 are listed as procurement references. Always confirm model-specific values and compliance with the legal manufacturer or supplier.

Working Principle

The system uses induced or forced draft fans to create negative pressure within the prilling tower, drawing air and entrained particles upward from the prilling zone. The exhaust stream passes through ductwork and often through cyclones, bag filters, or scrubbers to remove particulates and/or absorb gases before discharge or recirculation. This maintains controlled atmospheric conditions, prevents condensation, and ensures product quality by removing fines.

Common Materials

Carbon Steel, Stainless Steel (e.g., 304, 316L)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Air Flow Rate	15000–30000 m³/h	Required to maintain negative pressure in prilling towerISO 5801
Static Pressure	800–1200 Pa	Ensure sufficient draft through tower internalsISO 5801
Operating Temperature	-10–80 °C	Continuous operation within this range
Fan Speed	1450–2900 rpm	Adjustable via VFD for process control
Motor Power	15–45 kW	Depends on air flow and static pressureIEC 60034
Voltage	380–690 V AC	Three-phase, 50/60 HzIEC 60038
Noise Level	75–85 dB(A)	At 1 m distance; silencer optionalISO 3744
Filtration Efficiency	95–99.5 %	For particulate removal to meet emission limitsISO 16890
Material	304–316L SS	Corrosion-resistant for chemical environmentASTM A240
Weight	800–1500 kg	Including fan, motor, and housing

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Exhaust Fan
Provides the motive force to draw air through the system and overcome pressure losses.

Material: Carbon Steel / Coated Steel / FRP
Exhaust Ductwork
Channels the exhaust air from the tower to the fan and filtration units.

Material: Carbon Steel / Stainless Steel / FRP
Dust Collector / Filter
Removes solid particulates (prill fines, dust) from the exhaust air stream.

Material: Carbon Steel / Stainless Steel / Filter Media
Scrubber Optional
Absorbs gaseous components out of the exhaust — the dust collector only takes solids.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Prilling Tower

View system integration details

Manufacturers of Air Exhaust System

Manufacturer profiles associated with Air Exhaust System.

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Frequently Asked Questions

What is the purpose of the Air Exhaust System in a prilling tower?

It removes air, moisture vapor, dust, and particulates generated during prilling, maintaining controlled atmospheric conditions, preventing condensation, and ensuring product quality by removing fines.

What are typical reference ranges for air flow rate and static pressure?

Air flow rate is typically 15000–30000 m³/h, and static pressure is 800–1200 Pa, per ISO 5801. These are reference ranges; confirm for your specific model.

Which materials are commonly used for construction?

Carbon steel and stainless steel (e.g., 304, 316L) are listed. Material selection depends on corrosion resistance requirements.

What standards are relevant for verification?

ISO 5801 for air performance, IEC 60034 for motors, IEC 60038 for voltage, ISO 3744 for noise, ISO 16890 for filtration, and ASTM A240 for stainless steel. Verify compliance with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10 kPa (1.45 psi) differential pressure
flow rate:	500-50,000 m³/h (294-29,400 CFM)
temperature:	Up to 150°C (302°F) continuous operation
slurry concentration:	Up to 5% solids by weight

Air Exhaust System

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards