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Industrial Boilers Manufacturers and Suppliers

IQS Directory provides an extensive list of industrial boiler manufacturers and suppliers. Utilize our website to review and source industrial boiler manufacturers with our easy-to-use features which allow you to locate industrial boiler companies that will design, engineer, and manufacture industrial boilers for your exact specifications. Our request for quote forms make it easy to connect with leading industrial boiler manufacturers. View company profiles, website links, locations, phone number, product videos, customer reviews, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for industrial boiler machines, industrial heaters, or industrial electric boilers.

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Industry Information

Industrial Boilers

Industrial boilers are typically used to generate steam by applying thermal energy to transform water into steam on a large scale. Often, the steam will be used for heating or to power equipment. High-pressure boilers yield large amounts of steam within the durable chamber. Once enough steam has been created, the steam is released through valves and pressure channels the steam through pipes to the destined machinery. Leftover cooled water is sent back to the boiler to be recycled and reheated. To avoid corrosion, fresh water should be added to counterbalance any loss of water during the process.

Industrial boilers are built to withstand more stress than commercial boilers or hot water boilers. Industrial boilers are often larger than commercial boilers and are manufactured with steel up to 35 mm thick, allowing for pressures up to 30 bar and above. These features make industrial boilers suitable for industries that require a large heating capacity.

The safety and efficiency of industrial boilers has come a long way since their invention. During the Industrial Revolution, industrial boilers were the main source for powering factories. In that time period, there were many instances of industrial boilers rupturing due to overpressurization and overheating, causing deaths and structural damages in some cases. In the late eighteen hundreds and early nineteen hundreds, an estimated 50,000 people died each year from boiler related accidents in North America. Since then, designs have improved and regulations have been put in place to avoid this hazard. Organizations, such as ASME, helped to create the standards for both design and operation that modern manufacturers adhere to still today. Industrial boilers are now furnished with pressure sensitive gauges and relief valves and fabricated with durable materials to prevent damage. These safety measures reduce risks as well as increase efficiency by reducing heat loss levels and cutting fuel cost. It is important to evaluate your application and choose an industrial boiler constructed by a trusted manufacturer in order to minimize the risk of accidents and increase output.

Industrial boilers can be categorized based on design, fuel used to generate heat, or combustion technology. In regards to design, there are two main concepts. Fire tube boilers and water tube boilers. Fire tube boilers are easy to operate and have a simple design. They transport hot gases, generated by the heating source, through tubes that pass through a water-filled chamber, transferring heat from the gas filled tubes to the water. While fire tube boilers are often less expensive, they have a bulky design, small steam capacities, and low to medium degrees of pressure. Fire tube boilers produce steam rates up to 26,000 pounds per hour. Water tubes, also known as high-pressure boilers, have an inverse structure compared to fire tube boilers. Water flows through tubes that are surrounded by a cavity of hot gases. Water tube boilers are capable of producing 10,000 to 1,000,000 pounds of steam per hour. This design is more efficient but more complex and expensive to manufacture. The other downfall to water tube boilers is that the water that goes into the systems needs to be treated to keep the tubes clear from contaminants. Therefore to ensure optimal performance, a supporting water treatment system is recommended to supply filtered water.

Industrial boilers can also be classified by fuel type. Coal, oil, biomass (burnable plant materials such as wood chips or rice husks), natural gas, and steam. Boilers that use steam as fuel, hydronic industrial boilers, need to be coupled with another boiler type. Each fuel type offers varying cost, safety, and environmental benefits.

Finally, industrial boilers can be distinguished by the combustion technology. There are three types. Fluidized Bed systems “bubble” fuel and sand together to create a fuel-air mixture that helps keep uniform temperatures in the fuel bed and reduce emissions. Stoker systems burn coal and spread the heat by either continuous and even coal distribution or by feeding fuel into one area and then distributing the coal with a moving grate. The third combustion technology used to classify industrial boilers is thermic fluid heaters, which use a closed system of petroleum based fluids to deliver consistent temperature control and good thermal efficiency.

Industrial boilers are utilized in many settings. Industries such as agriculture, ceramic, electrical, refineries, food and beverages, paper and pulp, manufacturing, and many more employ steam production for a myriad of applications. These applications range from power generation, heating kilns, driving turbines, agricultural soil steaming, cement production, large scale heating etc. Some industries, such as paper and pulp, utilize industrial boilers that are fueled by the waste of their operations.


Industrial Boilers
Industrial Boilers
Industrial Boilers
Industrial Boilers – Unilux Advanced Manufacturing, LLC
Industrial Boilers – Unilux Advanced Manufacturing, LLC
Industrial Boilers – Smith Hughes
Industrial Boilers
Industrial Boilers
Industrial Boilers
Industrial Boilers – Smith Hughes
Industrial Boilers – Smith Hughes
Industrial Boilers – Cannon Boiler Works, Inc.



Combustion Technology Employed in Industrial Boilers

While choosing industrial burners, one factor that you need to consider, other than the design and application, is the combustion technology. Industrial boilers are large vessels which have a combustion chamber and water chamber. Through different tubing systems, known as heat exchangers, heat is transferred from the heat source to water.

Different types of heating systems are used in the combustion chamber.

Fluidized Combustion Bed System

The most modern system is known as a fluidized combustion bed system, a technology that is used when solid fuels such as wood and coal need to be burned. On a hot bed of ash or sand, solid particles of fuel are suspended and air is blown to achieve effective air-fuel contact. A fluidized combustion bed is a great alternative to traditional furnaces, which are larger and bulkier. With this system, industrial boilers can be made smaller and compact. They also endow flexibility in terms of fuel, as an array of fuels such as biomass can be used. Moreover, the system is highly efficient and reduces the emission of contaminants.

Stoker System

The second alternative is the stoker system. It involves a bed of burning coals—similar to the one used on the steam engines—which is fed continuously with coal. A stoker type system is further classified as a travelling gate, also known as a chain-grate stoker, and a spreader stoker. In a travelling gate stoker system, a heap of coal is loaded on a moving steel grate, which travels back and forth from the boiler to the loading place. The system is fitted with a coal gate to regulate the rate of the coal feeds. In such systems, a uniform size of coal is necessary for efficient burning. The spreader stoke is simple in which coal is fed continuously to a burning bed, and a spreader distributes the feed evenly for better combustion.

Thermic Fluid Heaters

Some designs also employ thermic-fluid heaters, which use a petroleum-based heat transfer system. In this system, a heated fluid runs within the tubes through water and heat the water to its boiling point. This type of system enables to temperature regulation, and has high efficiency in comparison to the alternatives.

Other than the combustion technology, you as a buyer need to consider the type of fuel that will be used in a boiler. There are numbers of options, ranging from coal to electric to gas to oil.

The standard fuel is coal, however, modern designs use a fine powder of coal called pulverized coal, as fine particles burn more efficiently than lumps. With the addition of a fluidized bed, even biomass can be used as a fuel, which means all organic materials and agricultural waste products are fuel. In homes, electric-powered boilers are used to heat the water.

Other than these, gas and oil are extensively utilized in boilers. Gases like natural gas and propane are most commonly used in boilers, as they are cost effective.





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