Provided are dynamic sealing structure and rotary kiln apparatus. Dynamic sealing structure includes kiln tail, discharging cover, sealing mechanism, guiding mechanism and a balancing device. Discharging cover includes discharging cover cylinder and discharging cover end face connected to same, discharging cover cylinder is arranged on outer side of circumferential wall of kiln tail in a sleeving manner, and discharging cover end face and end face of the kiln tail are arranged at intervals. Sealing mechanism is arranged between discharging cover cylinder and kiln tail and is connected to inner wall of discharging cover cylinder. Guiding mechanism is arranged between inner wall of discharging cover cylinder and outer side of kiln tail, and is located on one side or two sides of the sealing mechanism in axial direction of rotary kiln, rotating gap is provided between guiding mechanism and kiln tail, and balancing device is connected to outer side of the discharging cover cylinder.

A portable draft inducer is adapted to assist a user in starting a fire in a fireplace and to prevent smoke from the newly ignited fire from entering an adjoining room when the fire is first started.

A portable draft inducer is adapted to assist a user in starting a fire in a fireplace and to prevent smoke from the newly ignited fire from entering an adjoining room when the fire is first started.

Disclosed is a particle heating landscape furnace, which includes a combustion device. The combustion device includes a vertically arranged cover pipe, a grid and a combustion assembly. The combustion assembly has a feed chamber, a flame outlet and a flame outlet opposite to the flame outlet. A feed chamber is arranged obliquely, the flame outlet and the discharge port are both connected with the feed chamber, and the cover pipe is arranged on a periphery of the flame outlet, the grid is arranged on an outer side of the discharge port.

Disclosed is a particle heating landscape furnace, which includes a combustion device. The combustion device includes a vertically arranged cover pipe, a grid and a combustion assembly. The combustion assembly has a feed chamber, a flame outlet and a flame outlet opposite to the flame outlet. A feed chamber is arranged obliquely, the flame outlet and the discharge port are both connected with the feed chamber, and the cover pipe is arranged on a periphery of the flame outlet, the grid is arranged on an outer side of the discharge port.

A compound engine assembly with an engine core including at least one internal combustion engine, a turbine section including a turbine shaft in driving engagement with the engine shaft, and a compressor, and a firewall. The compressor is located on one side of the firewall, and the turbine section and the engine core are located on the other side. The assembly may include a gearbox module with the turbine section and the engine core located on a same side of the gearbox module casing and the compressor located on the opposite side of the gearbox module casing, and with the firewall extending from the gearbox module casing. One or more rotatable accessory may be located on a same side of the firewall as the compressor. A method of reducing fire hazard in a compound engine assembly is also discussed.

A compound engine assembly with an engine core including at least one internal combustion engine, a turbine section including a turbine shaft in driving engagement with the engine shaft, and a compressor, and a firewall. The compressor is located on one side of the firewall, and the turbine section and the engine core are located on the other side. The assembly may include a gearbox module with the turbine section and the engine core located on a same side of the gearbox module casing and the compressor located on the opposite side of the gearbox module casing, and with the firewall extending from the gearbox module casing. One or more rotatable accessory may be located on a same side of the firewall as the compressor. A method of reducing fire hazard in a compound engine assembly is also discussed.

A sealing arrangement of a protruding bar (1) arranged to enter into a combustion chamber (3) of the boiler through an opening (5) of a wall (4) of the combustion chamber (3). The protruding bar (1) is attached to a handling device (10). The sealing arrangement has a gasket (2) for sealing the opening (5). The gasket (2) is slidably arranged around the protruding bar (1) for sealing a gap between the protruding bar (1) and the wall (4) of the combustion chamber so that sealing arrangement is configured to keep the gasket (2) attached to the wall (4) of the combustion chamber (3) while the protruding bar (1) is fully inserted into the combustion chamber (3) and at least a part of time when the protruding bar (1) enters into the combustion chamber (3) and at least a part of time when the protruding bar (1) retracts from the combustion chamber (3).

A sealing arrangement of a protruding bar (1) arranged to enter into a combustion chamber (3) of the boiler through an opening (5) of a wall (4) of the combustion chamber (3). The protruding bar (1) is attached to a handling device (10). The sealing arrangement has a gasket (2) for sealing the opening (5). The gasket (2) is slidably arranged around the protruding bar (1) for sealing a gap between the protruding bar (1) and the wall (4) of the combustion chamber so that sealing arrangement is configured to keep the gasket (2) attached to the wall (4) of the combustion chamber (3) while the protruding bar (1) is fully inserted into the combustion chamber (3) and at least a part of time when the protruding bar (1) enters into the combustion chamber (3) and at least a part of time when the protruding bar (1) retracts from the combustion chamber (3).

An oven appliance with features for dissipating pressure increases in the cooking chamber of the oven without forcing open the oven door is provided. Such features include a flame arrester that dissipates pressure increases and quenches flames from the cooking chamber of an oven appliance.