The explosion-proof door installed on the wall plate of the heating furnace shell is a safety valve to ensure the safe operation of the heating furnace. When the operating pressure of the heating furnace exceeds the design value, the explosion-proof door will automatically open to release the furnace pressure and ensure the safety of the heating furnace. Explosion-proof doors are generally made of gray cast iron, produced by static casting processes, and have thermal insulation materials inside the door cover.

Door hole furnace accessories are necessary supporting parts for tubular heating furnaces and chemical plant industrial furnaces. They play important functions such as furnace observation, pressure relief and explosion prevention, maintenance and cleaning during the operation of tubular heating furnaces and chemical plant industrial furnaces. 

Due to their multiple functions, door opening accessories are mainly designed to have a simple structure and flexible operation. In order to reduce jamming caused by thermal deformation, the main structural frame of door opening accessories is mostly made of cast iron.

Door hole series accessories mainly include fire doors, explosion-proof doors, furnace bottom manhole doors, radiation manhole doors, convection sweep doors, chimney manhole doors, observation holes, fire holes, etc. The operation modes of door hole accessories are mainly There are side opening type, upward turning type, downward turning type, flip plate type, tube hole type, spherical type, type with observation hole, type with protective sight glass, etc.

Our company combines many years of manufacturing experience and common sense in the use of conventional door hole accessories. During the operation of the entire device, the cast iron frame will be slightly deformed due to heat, resulting in heat loss and smoke leakage. Our company's technical department is focusing on the door hole accessories. Based on the original accessories,

Scientific sealing measures have been adopted to achieve zero leakage in the use of door hole series accessories, achieving obvious effects of energy saving, consumption reduction, environmental protection and emission reduction, and with stable quality and good reputation, we have cooperated with many refining and chemical companies and chemical construction companies. The engineering company established a long-term cooperative relationship.

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Office address: Rm 1402-1403, Excellence Bldg, No.128 Yanji Rd, CBD,Shibei Dist, Qingdao, Shangdong 266000, China

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