A demolishing method utilizes an aggregate stack demolishing scaffold apparatus mounted to an upper part of an aggregate stack including four smoke funnels arranged adjacent to each other. An uneven scaffold including one plate-shaped upper scaffold portion is placed on an upper end of each smoke funnel. A lower scaffold portion is coupled to the upper scaffold portion and located in lower positions in the smoke funnels with the upper scaffold portion being placed on the upper ends of the smoke funnels. A chain block suspends and supports the uneven scaffold from and on an inner wall of each smoke funnel, and adjusts a suspending height. With this configuration, the upper scaffold portion is located on the upper ends of the smoke funnels, and thus there is no possibility of contact between the scaffolds in the smoke funnels causing a worker to lose his balance, thereby improving safety.

A piping system for recovery heat energy from an exhaust gas in a heat recovery furnace, the piping system comprising a piping inlet, where the piping inlet transects a wall of a stack zone of the heat recovery furnace, a piping run, the piping run fluidly connected to the piping inlet, and a piping outlet, the piping outlet fluidly connected to the piping run, where the piping outlet transects the wall of the stack zone of the heat recovery furnace, where the piping system is positioned in a stack zone of the heat recovery furnace between a stack inlet and a stack outlet.

A piping system for recovery heat energy from an exhaust gas in a heat recovery furnace, the piping system comprising a piping inlet, where the piping inlet transects a wall of a stack zone of the heat recovery furnace, a piping run, the piping run fluidly connected to the piping inlet, and a piping outlet, the piping outlet fluidly connected to the piping run, where the piping outlet transects the wall of the stack zone of the heat recovery furnace, where the piping system is positioned in a stack zone of the heat recovery furnace between a stack inlet and a stack outlet.

A pass-through device for a chimney, and a chimney support system having pass-through device for a chimney, are provided. The pass-through device includes a pass-through tube and a chimney support disposed within the pass-through tube. The chimney support is supported by the pass-through tube from within the pass-through tube.

A pass-through device for a chimney, and a chimney support system having pass-through device for a chimney, are provided. The pass-through device includes a pass-through tube and a chimney support disposed within the pass-through tube. The chimney support is supported by the pass-through tube from within the pass-through tube.

Recyclable cylindrical structures and usage methods are provided. A recyclable cylindrical structure includes multiple prefabricated cylindrical units. Each unit is provided with a ring block coaxially fixed on the top of the unit, a ring slot coaxially formed in the bottom of the unit, two first sealing rings arranged on the top of the unit and a second sealing ring arranged on the top of the ring block of the unit. The ring block is provided with multiple first connection elements. Multiple second connection elements are arranged in the ring slot. For two adjacent prefabricated cylindrical units of the recyclable cylindrical structure, the ring block of the lower unit inserts into the ring slot of the upper unit and the first connection elements of the lower unit are corresponding and jammed one-to-one with the second connection elements of the upper unit.

Magnetic straking can optionally be temporarily attached to a ferromagnetic structure or other structure capable of magnetic attachment thereto, allowing observation or testing of the structure's performance before optional permanent attaching of such straking to the structure, such as by welding or the like.

The present invention provides a self-supporting chimney apparatus. The chimney apparatus having at least one inflatable compartment. In some embodiments, the chimney apparatus may have a plurality of toroidal compartments, with the dimensions of the toroidal compartments calculated to maximize the structural integrity of the chimney apparatus, and with the pressure in the compartments dynamically adjusted to minimize deflection under wind loading. The self-supporting chimney apparatus may be used to construct an improved solar updraft tower, with the shape of the tower, the greenhouse surrounding its base, and the ground under the greenhouse optimized together to minimize energy losses. The efficiency of the power plant based on the design is further enhanced by combining solar thermal energy generation with photovoltaic energy generation and utilizing the waste heat of the latter.

Reinforcement assemblies, reinforcement fixtures, methods of constructing a reinforcement assembly, and methods of constructing a reinforcement fixture are described herein. An example embodiment of a reinforcement assembly comprises a plate, a plurality of connectors, and a plurality of elongate members. The plate comprises a plate lengthwise axis, a plate center axis, a plate top surface, a plate bottom surface, and a plate outer surface. Each connector of the plurality of connectors is attached to the plate outer surface and each elongate member of the plurality of elongate members is attached to a connector of the plurality of connectors.

The disclosed concerns a method of transporting a tower of a wind turbine in an upright position to an assembly site of the wind turbine, whereby the tower is equipped with a strake set comprising a number of strakes positioned to lead from a top of the tower in the upright position down towards a bottom of the tower, at least one of the strakes being realized as a detachable strake. The invention also concerns a strake set and transport assembly.