CN201506765U

CN201506765U - Furnace door on clean type coke furnace

Info

Publication number: CN201506765U
Application number: CN2009202248434U
Authority: CN
Inventors: 李树斗; 梁飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-16
Filing date: 2009-08-16
Publication date: 2010-06-16
Anticipated expiration: 2019-08-16

Abstract

The utility model discloses a furnace door on a clean type coke furnace, which comprises a light castable material layer and is characterized in that the top part and the outer surface of the castable material layer are respectively coated with cast iron layers; a ceramic fiber heat insulating layer is arranged between the light castable material layer and the cast iron layer; a screw hole is formed on the cast iron layer at intervals of 30 cm; a heat insulating steel screw is arranged in the screw hole; and the light castable material layer, the ceramic fiber heat insulating layer and the cast iron layers are fixedly connected into an integral structure. The furnace door has a novel and reasonable structure, effectively reduces the probability of damage caused by opening a lower furnace door to an inner lining of an upper furnace door, simultaneously protects cast iron of the upper furnace door, eliminates the damage caused by burning cast iron on the upper furnace door to the an inner lining of the lower furnace door and prolongs the service life of the upper furnace door and the lower furnace door.

Description

A kind of clean coke oven upper furnace door

Technical field the utility model belongs to clean coke oven door technical field, relates to a kind of clean coke oven upper furnace door.

Background technology clean coke oven is a successful experience of having been used for reference external heat recovery coke oven by the chemical design institute, Shanxi Province, combines some experiences of China's improvement coke oven simultaneously, a kind of new Type Coke Oven that development research goes out.Because the difference of this type of furnace and traditional coke oven is that the width of coking chamber has been increased to 3600mm by 450～550mm, so the integrally-built fire door of traditional coke oven can not satisfy the needs of prior art, form by upper furnace door and lower furnace door through the clean coke oven door that improves prior art, upper furnace door and lower furnace door all are fixed on the furnace retaining ironware, upper furnace door installs the back and forms a plane with the furnace retaining ironware, and this helps the opening and closing of lower furnace door.Because the bottom of the clean coke oven upper furnace door of prior art is provided with high-alumina refractory brick, the lower outside of refractory brick is provided with the cast iron lower edge, be used to hold the high-alumina refractory brick on its top, because lower furnace door will upwards be carried 5～8cm in opening process, lower furnace door inner lining refractory high-alumina refractory brick easy and the upper furnace door inside bottom bumps in this process, thereby upper furnace door high-alumina refractory brick vertical portion is divided ruptures, after this part refractory brick fracture of upper furnace door, heat in the coking chamber will be directly delivered to the cast part of upper furnace door, cause the serious scaling loss in cast iron lower edge, high temperature liquid iron after fusing trickling downwards simultaneously, burn out the lower furnace door inner lining refractory, cause the lower furnace door local superheating, thereby lower furnace door is deformed, reduced the work-ing life of lower furnace door.

The summary of the invention the purpose of this utility model is to solve prior art short technical problem in work-ing life, provides a kind of clean coke oven upper furnace door, to overcome the deficiencies in the prior art.

To achieve these goals, the utility model clean coke oven upper furnace door, comprise the lightening casting bed of material, its main points are that the top and the outside of the lightening casting bed of material coats cast iron layer, be provided with the ceramic fiber thermofin between the lightening casting bed of material and the cast iron layer, be provided with a hole every 30cm on the said cast iron layer, silk is provided with the high temperature steel screw in the hole, the lightening casting bed of material, ceramic fiber thermofin is fixedlyed connected with cast iron layer be integrative-structure.

The utility model structure design novelty, reasonable; reduced effectively owing to open lower furnace door causes damage to the upper furnace door liner probability; protected the upper furnace door cast part simultaneously; stopped because of upper furnace door cast iron scaling loss to the damage that the lower furnace door liner causes, prolonged the work-ing life of upper and lower fire door.

Appended drawings is the utility model structural representation.

Embodiment with reference to the accompanying drawings, it comprises the lightening casting bed of material 4 the utility model, the top of the lightening casting bed of material 4 and outside coat cast iron layer 1, be provided with ceramic fiber thermofin 2 between the lightening casting bed of material 4 and the cast iron layer 1, be provided with a hole every 30cm on the cast iron layer 1, silk is provided with high temperature steel screw 3 in the hole, the lightening casting bed of material 4, ceramic fiber thermofin 2 is fixedlyed connected with cast iron layer 1 be integrative-structure.

Claims

1. clean coke oven upper furnace door, comprise the lightening casting bed of material, the top and the outside that it is characterized in that the lightening casting bed of material coat cast iron layer, be provided with the ceramic fiber thermofin between the lightening casting bed of material and the cast iron layer, be provided with a hole every 30cm on the said cast iron layer, silk is provided with the high temperature steel screw in the hole, the lightening casting bed of material, ceramic fiber thermofin is fixedlyed connected with cast iron layer be integrative-structure.