Ultra-energy saving mode of horizontal vacuum bright annealing furnace
Nov. 04, 2020
Ultra-energy saving mode of horizontal vacuum bright annealing furnace
The ultra-energy-saving mode of the horizontal vacuum bright annealing furnace is an energy-saving cycle operation furnace, which adopts a fiber structure and has super energy-saving properties.
Horizontal vacuum bright annealing furnace is actually the cooperation of ammonia decomposition furnace and heating furnace. The ammonia decomposition furnace decomposes ammonia into nitrogen and hydrogen, and then transfers it to a heating furnace (annealing furnace). Nitrogen is filled into the furnace to prevent oxygen from entering. Hydrogen plays a reducing role in it, forming a fire curtain at the entrance of the furnace to further block oxygen. Stainless steel is protected and annealed in an oxygen-deficient high-temperature atmosphere, so it remains bright after being out of the furnace. (No oxidation) When the temperature is above 500, the muffle furnace body of the annealing furnace will be oxidized, and only a certain amount of inert gas can be used to prevent air from entering, thereby protecting the muffle furnace body. Of course, it is not only when nitrogen is introduced when the temperature is lowered, but also when the temperature is raised to do work, but the gas source may be different.
The trolley frame of the horizontal vacuum bright annealing furnace is welded by section steel, and its rigidity ensures that it will not deform when fully loaded. The interior is built with refractory bricks, and heavy bricks are used for collision-prone parts and load-bearing parts to enhance the structural strength of the furnace lining. The trolley adopts a self-propelled structure, and the driving wheel is driven by the active sprocket of the reducer to walk on the track. The trolley seal adopts automatic labyrinth structure and soft contact double seal. When the trolley enters the furnace, it is automatically lifted and sealed under the action of the cam and the inclined surface of the roller. When the trolley is driven out, the sealing groove automatically falls, and the sealing sand in the sealing groove does not need to be added frequently after being filled. When the trolley is opened, the furnace door is electronically controlled and equipped with electromagnetic brakes to prevent inertia from hitting the furnace body. There is also an interlock control, that is, when the furnace door is slightly opened, the heating element is automatically cut off and the power supply of the trolley's traveling mechanism is restored. After the furnace door is closed in place, the power supply of the traveling mechanism of the trolley is automatically cut off and the power supply of the heating element is restored.