Hinged baffle assemblies for heat recovery steam generators (HRSGs) are disclosed. The baffle assemblies may include a baffle plate for directing exhaust fluid through a casing of the HRSG. The baffle plate may include first and second ends, a first surface exposed to the exhaust fluid flowing through the casing, and a second surface opposite the first surface. The baffle assemblies may also include a hinge component coupled to the first end of the baffle plate and positioned within/fixed relative to the casing. Additionally, the baffle assemblies may include a first diverter plate positioned adjacent to the second end of the baffle plate. The first diverter plate may directly contact the first surface of the baffle plate and may aid in directing the exhaust fluid through the casing of the HRSG.

A segmented watertube boiler system allows for rapidly expanding the capacity of a boiler. The system joins boiler segments to form a boiler. The segments have portions of the boiler so that the storage capacity for water and heat are increased with the number of segments uses. Any openings in the segments on the ends are capped off and heat and water sources are attached. The boiler can be cleaned and maintained by simply disassembling the segments to provide access to the whole boiler.

A waste heat recovery boiler in producing glass beads includes an equipment base arranged at the lower part of the waste heat recovery boiler. The upper part of the equipment base is connected with a cylindrical combustion production chamber, the lower part of the combustion production chamber is provided with a raw material inlet with single-layer or staggered layers. A finished product outlet is arranged at the lower end inside the combustion diffusion chamber, a membrane wall is arranged outside the combustion diffusion chamber, a steam-water lead-out straight tube system is symmetrically arranged at the upper end of the combustion diffusion chamber, a top annular water collecting tank is connected between the steam-water lead-out straight tube system and a steam-water lead-out tube system, and the steam-water lead-out tube system is connected with an upper drum.

An arrangement in a recovery boiler having a furnace for combusting waste liquor and a flue gas duct including vertical flue gas channels, at least some of which are provided with heat recovery units for recovering heat from flue gases. The first flue gas channel downstream of the furnace is provided with a reheater and one of the following heat recovery units: an economizer or a boiler bank. The reheater and the second heat recovery unit are located one after the other in the horizontal incoming direction of the flue gas, so that in a flue gas channel the flue gas flows in a vertical direction from above downwards and heats the reheater and the second heat recovery unit simultaneously. The heat recovery elements of the reheater and the second heat recovery unit may be positioned side by side in a direction that is crosswise with respect to the horizontal incoming direction of the flue gas.

An arrangement in a recovery boiler having a furnace for combusting waste liquor and a flue gas duct comprising vertical flue gas channels, at least part of which is provided with heat recovery units for recovering heat from flue gases. The heat recovery units have a width of substantially the width of the flue gas duct, whereby downstream of the furnace the first flue gas channel is provided with a superheater. In addition to the superheater, the first flue gas channel is provided with one of following heat recovery units: an economizer, a boiler bank, or a reheater. The superheater and a second heat recovery unit are located one after the other in horizontal introduction direction of the flue gas, so that in a flue gas channel the flue gas flows in the vertical direction downwards and heats the superheater and the second heat recovery unit simultaneously