Combustion Blower for Industrial Furnaces & Burners

Therm process Engineering Pvt. Ltd. supplies combustion blowers for industrial furnaces and burners. The combustion blower delivers the air that burners need to burn fuel completely. It must supply enough volume at enough pressure to overcome the burner, air piping and any recuperator in the air path. Therm process designs burners, recuperators and furnaces, so its blowers are sized for the whole combustion system rather than picked from a catalogue in isolation. Share your burner load and air-side layout for a correctly sized blower.

What Does a Combustion Blower Do?

Every fuel-fired burner needs air in the right proportion to the fuel. Natural draught is rarely enough for industrial furnaces. A combustion blower forces air into the burner at a controlled volume and pressure.

Two numbers define a combustion blower:

• Airflow, the volume of air per hour. This is set by total fuel firing rate and the air-fuel ratio.
• Static pressure, the pressure the blower must develop. This is set by burner pressure drop, piping, valves, and the recuperator if one is fitted.

An undersized blower starves burners, causing incomplete combustion, smoke, lower temperature and wasted fuel. A greatly oversized blower wastes electrical power and makes air control harder.

Most combustion blowers for furnaces are centrifugal: an impeller spins inside a casing and throws air outward, building pressure. Impeller blade shape (radial, forward-curved, backward-curved or airfoil) affects the pressure, flow and efficiency characteristics.

Therm process Combustion Blowers

Therm process supplies combustion blowers as part of its combustion equipment range, alongside gas, oil and dual-fuel burners, recuperators, gas trains and ratio regulators. Blowers are specified to suit:

• Total burner firing rate and number of burners.
• Fuel type and the corresponding air requirement.
• Pressure drop through burners, piping, valves and recuperator.
• Preheated air service, where a recuperator is in the circuit.

Blowers can be supplied for new furnaces, burner conversions and replacement of existing units.

Technical Specifications

Parameter	Specification
Type	Centrifugal combustion air blower
Application	Combustion air supply to industrial burners and furnaces
Airflow	As per burner firing rate
Static Pressure	As per burner, piping and recuperator pressure drop
Drive	Electric motor, as per rating
Impeller Type	As per pressure and flow requirement
Supply	Standalone or with complete burner / recuperator package

Key Features

• •Sized for the full air circuit, including recuperator.
• Supplied by a burner manufacturer.
• For new builds, conversions and replacements.
• Suitable for reheating, forging, heat treatment and melting furnaces

How to Size a Combustion Blower

• Total heat input Sum the burner firing rates.
• Air requirement Calculate combustion air from fuel type and excess air.
• Pressure drop Add burner, piping, valve and recuperator losses.
• Margin Allow for control range and future needs.
• Selection Choose impeller type, speed and motor.

Applications

• Reheating furnace burner systems
• Forging and heat treatment furnaces
• Aluminium melting and crucible furnaces
• Delta and ladle preheaters
• Boilers, ovens and kilns with forced-draught burners

Benefits

• Complete, clean combustion with adequate air.
• Stable burner operation.
• Right-sized power use.
• System-level responsibility with burners and recuperator.

Why Choose Thermprocess?

• Combustion system specialists since 1997.
• Burners, blowers, recuperators and controls from one source.
• ISO 9001 & ISO 14001 certified, as stated by the company.

Custom Recuperator Solutions

• Furnace type and capacity
• Fuel and firing rate
• Flue gas volume and temperature
• Required air preheat temperature
• Available duct space (underground or overhead)
• Existing blower and burner data (for retrofit)

Related Therm process Products

• Industrial Burners
• Recuperator / Economizer
• Limiting Orifice Valve
• Accessories

Frequently Asked Questions

Q1. What is a combustion blower?
A combustion blower supplies forced air to industrial burners so fuel can burn completely at the correct air-fuel ratio.
Q2. How is a combustion blower sized?
By the airflow needed for the total burner firing rate, and the static pressure needed to overcome burners, piping, valves and any recuperator.
Q3. Why does a recuperator affect blower selection?
A recuperator adds pressure drop to the air path, and hot air occupies more volume. The blower must be sized to deliver the required air through it.
Q4. Can Therm process replace a blower on an existing furnace?
Yes. Share the burner and air-side details and Therm process will size a replacement.
Q5. What information is needed for a quotation?
Share the burner firing rates, fuel type, number of burners, air-side layout, whether a recuperator is fitted, and the power supply.

Need a Combustion Blower?

Share your burner load, fuel and air-side layout. Therm process will recommend a correctly sized blower.

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