JPH0738156U - Energy saving furnace lid for coke oven - Google Patents

Abstract

(57) [Summary] [Object] An object of the present invention is to provide a furnace lid of a coke oven that reduces thermal strain, has good gas sealing performance, and contributes to energy saving. According to the present invention, in a coke oven furnace lid having a metal oven lid body 1 and a heat insulating material 3 attached to the inside of the oven lid body 1 with a seal plate 2 interposed therebetween, the oven lid body 1 is closed. The furnace lid body 1 is formed into a structure, and the air in the furnace lid body 1 is confined to prevent warping of the furnace lid body 1 by convection of the air, and the furnace lid body 1 is heated by heating the furnace lid body 1. The energy-saving furnace lid for the coke oven is characterized by the above.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to an energy saving furnace lid for a coke oven.

[0002]

[Prior art]

 Japanese Patent Publication No. 53-7164 discloses a lid for a coke oven. In this publication, a single heat-resistant seal plate is attached to the front of the furnace lid main body with a certain interval, and the periphery of this seal plate is bent to the door frame side to cover the entire furnace opening and form a door frame. It describes a furnace lid for a coke oven, which is constructed so as to be pressed against each other and is provided with a spring for pressing the periphery of the seal plate toward the door frame.

[0003]

[Problems to be solved by the device]

 However, even though the above publication is effective from the gas sealing surface, it is cooled by the outside air passing between the furnace lid body and the seal plate, so the furnace mouth side of the coke furnace cools and the energy saving is significantly negative. There was a problem that was.

[0004]

[Means for Solving the Problems]

 The present invention relates to a furnace lid main body 1 made of metal, and a furnace lid of a coke oven in which a heat insulating material 3 is attached to the inside of the furnace lid body 1 with a seal plate 2 interposed therebetween. It is formed in a box shape so that the air in the furnace lid body 1 is confined and the convection of the air prevents the furnace lid body 1 from bending and the furnace lid body 1 is heated to keep the furnace mouth warm. Then, it tries to solve such a subject.

[0005]

[Action]

 The present invention forms a furnace lid body 1 in a box-like shape with a closed structure, traps air in the furnace lid body 1, prevents convection of the air and prevents the furnace lid body from bending, and is a coke oven. The coke oven will be conserved by keeping the furnace opening warm.

[0006]

【Example】

 Embodiments will be described below with reference to the drawings.

A metal furnace lid body 1 is formed in a box shape having a closed cross section (closed structure) including an inner side 1a, side portions 1b and 1c, and an outer side 1d.

[0008] In the drawing, rounded corners 1e are attached to the four corners, but when formed using square steel, there is no curved rounded corner 1e, and the outer side 1d is welded between the outer ends of the side portions 1b and 1c. .

In any case, the attachment portion of the bar 2 is configured so that the outer side 1d is partially opened so that the operation of the bar 2 is not hindered.

A seal plate 4 is applied to the inner side 1 a of the furnace lid main body 1 with a spacer 3 interposed therebetween, a heat insulating material 5 is arranged inside the seal plate 4, and a bolt 6 is fixed. Reference numeral 7 is a knife edge, 8 is a push spring, 9 is a furnace lid frame, and 10 is a barb spring.

When the furnace lid thus configured is attached to the furnace opening of the coke oven and the inside of the coke oven is heated and operated, heat is transferred to the furnace lid body 1 through the seal plate 4 and is transferred into the furnace lid body 1. The confined air is heated on the coke oven side, that is, on the inside, and the outside is cooled by the outside air, so that air convection occurs in the oven lid body 1 and the temperature difference between the inside and the outside is made small, so that the oven lid body 1 It is possible to improve the gas seal performance by improving the gas seal followability of the knife edge 7 by reducing the warp of the blade, and the heated air in the furnace lid body 1 heats the seal plate, the knife edge and the furnace mouth. It keeps heat and brings energy saving to the heating operation of the coke oven.

[0012]

[Effects of the Invention] As described above, according to the present invention, in the furnace lid of the coke oven, the furnace lid body is formed in a box shape with a closed surface (closed structure). The effect of being able to improve the gas seal followability of the knife edge by reducing the temperature difference between the inside and outside of the furnace lid body and minimizing the body distortion (warping) by using the convection of .

Further, there is an effect that the heating of the air in the furnace lid main body and the heat retaining function prevent the cooling of the furnace opening and contribute to the energy saving of the coke furnace.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 1 is a furnace lid body 1a is an inner side 1b, 1c is a side part 1d is an outer side 2 is a barb 3 is a spacer 4 is a seal plate 5 is a heat insulating material 6 is a bolt 7 is a knife edge 8 is a pressing spring 9 is a barb 10 is a barb Spring

Claims (1)

[Scope of utility model registration request] 1. A furnace lid of a coke oven comprising a metal furnace lid body 1 and a heat insulating material 3 attached to the inside of the furnace lid body 1 with a seal plate 2 interposed therebetween. To form a box-like structure for enclosing the air in the furnace lid body 1 to prevent the furnace lid body 1 from warping and bending by convection of the air, and to keep the furnace opening warm by heating the furnace lid body 1. Energy saving furnace lid for coke ovens characterized by