When selecting a safety control system for a combustion application, it is essential to recognize that many trade-offs will need to be weighed before making a decision. In simple terms, the reliability will decrease when adding safety to any system.
Developing or specifying standard design panels that can be optimized for specific applications allows oven and dryer OEMs to avoid having to develop custom combustion controls for each heat processing system.
Two primary uses for steam in the power and process industries are performing mechanical work and as a heat transfer medium. Superheated steam is preferred for mechanical work because it does not contain entrained water droplets, which can damage rotating equipment.
Regular readers of Process Heating understand that each of the myriad dryer designs can effectively remove moisture from a range of materials. But, each type of dryer also comes with capabilities and characteristics that offer either advantages or disadvantages based on the materials to be processed and requirements of each application.
Freezing preserves raw or prepared foods to allow them to be stored for an extended period. Placing food in a frozen state slows decomposition by converting residual moisture to ice, inhibiting the growth of most bacterial species, and locking in important sensory attributes like taste, color and essential nutrients.
Use the 2020 edition of our industrial boilers selection tool to compare equipment makers and find those with experience with your industrial heating process.
April 1, 2020
Used for generating steam for power, processing or space heating, or for producing hot water to heat products or a hot water supply, a boiler delivers steam or hot fluid to the end use point at the desired pressure and temperature.
Hubbell Heaters redesigned its website at www.hubbellheaters.com. The maker of industrial water heating systems incorporated streamlined navigation, dedicated market pages to simplify finding water heating solutions, a tabular RFQ form and a product filtering system that allows site visitors to sort results by market type, applications and fuel source.
A circulating fluidized bed boiler with a flue gas cleaning system will be part of a biomass power plant to be built in Omaezaki in Shizuoka Prefecture, Japan. The boiler, which was ordered for Omaezakikou Biomass Power Plant, a joint venture operation between Toyo Engineering Corp. and Nippon Steel Engineering Co., will be supplied by Andritz.
A visible thermal imaging system provides high quality lime kiln process monitoring for pulp mills. Combining the camera temperature information with process controls can improve combustion optimization and reburned lime quality and reduce emissions. The system, manufactured by Valmet, also allows visual evaluation of flame shape, size and temperature profile.
A company in the defense industry will use an explosion-resistant, friction-heated cabinet oven to dry molding powders. The Gruenberg oven, shipped by Thermal Product Solutions, has an operating temperature of 149°F (65°C).
Lewco Inc. designed, manufactured and delivered an enhanced-duty composite curing oven to a military base. The oven, which has a maximum temperature of 650°F (343°C), will be used to cure vacuum-bagged composite aircraft parts.
High quality spirits get their special taste by being stored in wooden barrels that are roasted before filling. Roasting traditionally has been done with an open flame. A custom infrared oven is replacing that open flame for one spirits maker.
An electrically heated jumbo walk-in oven with a maximum temperature of 500°F (260°C) is being used for heating molds at a manufacturer’s facility. To heat the oven, 360 kW are installed in Incoloy-sheathed tubular elements, and 49,000 cfm from two 20-hp recirculating blowers provide a combination airflow to the workload.
The controllers simultaneously display mass flow, volumetric flow, pressure and temperature. Models DPC57, DPC67 and the DPC77 are designed to control gases at 200, 500 and 1000 L/min flow ranges, respectively.
The EPC3000 controller range is Ethernet enabled as standard and is the first of the company’s controller to be designed and certified to meet the stringent cybersecurity requirements of Achilles Communications Robustness Testing Level 1.
Bebco EPS purge and pressurization system is designed specifically for use with large motors or large enclosures in Zone 1 hazardous areas. The 6100 Series can purge an enclosure over 450 ft3 (12.2 m3) and is suited for applications in the chemical, petrochemicals and oil-and-gas industries.
The Xtreme-Therm line includes circulating water and heat transfer oil systems, portable chillers, and combination chilling and heating systems with temperatures ranging from -20 to 650°F (-29 to 343°C).
The 2.5 and 3” line vacuum conveyors convert hose, tube or pipe into an inline conveying system for materials up to 900°F (482°C). The air-operated conveyors are available with smooth ends to fit into hose or tube and be secured with a hose clamp.
The 500°F (260°C) walk-in oven has 4” insulated walls and an aluminized steel interior and exterior. Features include an integral top-mounted heat chamber, single-door front and rear access points, 2” insulated floor with channel-guide tracks and two fixture supports with flanged wheels.
Sanitary steam heater is offered in models as small as 4” steam heaters and starch cookers for the food and beverage industry to as large as steam heaters for petrochemical distillation and starch cooking for pulp and paper and wastewater management.
Aerodynamic flow control valves provide Cv/size ratios previously not offered in cage-guided control valves, according to the manufacturer. The valve design reduces flow turbulence and valve-generated noise. As a “smart” valve, Aeroflow has an optional dead zone I/O for accurate, stable pressure measurements.