Abstract: The present disclosure discloses a protective case capable of being flipped to achieve supporting and capable of adjusting flipping and rotating angles, including a back plate, and a supporting component and a rotating mechanism which are mounted on the back plate. According to the present disclosure, in the horizontal rotating mechanism, horizontal rotation is achieved by mutual cooperation between only one annular rotating member and the rotating slot of the back plate, so that the protective case is simple in structure, easy to mount, and low in later maintenance rate; and furthermore, through the arrangement of a supporting positioning component, tangent planes that form angles are arranged on two shaft sleeves and the rotating shaft, so that the flippable supporting member can achieve mutually pressed rotation during flipping, and the flippable supporting member can be flipped and positioned in an angle.

Abstract: A fly ash recycling gasification furnace includes a fly ash burner, an ash remover, a fly ash storage tank, a variable pressure lock hopper, a fly ash blending system, an exhaust filter, and a backflushing nitrogen buffer tank. The fly ash burner is located on an inner wall of a hearth of the gasification furnace. The ash remover has an inlet connected to an outlet of a waste boiler of the gasification furnace. The fly ash storage tank is connected to a pressurized nitrogen inlet pipe, and a bottom outlet of the ash remover. The variable pressure lock hopper is connected to the fly ash storage tank. The fly ash blending system is connected to the variable pressure lock hopper and the fly ash burner. The exhaust filter is connected to the storage tank, the lock hopper and the blending system. The buffer tank is connected to the exhaust filter.

Abstract: A fly ash recycling gasification furnace includes a fly ash burner, an ash remover, a fly ash storage tank, a variable pressure lock hopper, a fly ash blending system, an exhaust filter, and a backflushing nitrogen buffer tank. The fly ash burner is located on an inner wall of a hearth of the gasification furnace. The ash remover has an inlet connected to an outlet of a waste boiler of the gasification furnace. The fly ash storage tank is connected to a pressurized nitrogen inlet pipe, and a bottom outlet of the ash remover. The variable pressure lock hopper is connected to the fly ash storage tank. The fly ash blending system is connected to the variable pressure lock hopper and the fly ash burner. The exhaust filter is connected to the storage tank, the lock hopper and the blending system. The buffer tank is connected to the exhaust filter.