CN2302999Y

CN2302999Y - Lid of coke oven

Info

Publication number: CN2302999Y
Application number: CN 97213500
Authority: CN
Inventors: 高成明
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-09
Filing date: 1997-04-09
Publication date: 1999-01-06
Anticipated expiration: 2007-04-09

Abstract

The utility model relates to a coke oven lid made of fireproof materials. The entire coke oven lid is divided into a plurality of bar-shaped double arch small lids. The double arches have equal curvature diameters. Central points of the curvature diameters are arranged on the horizontal equal distance of both sides of a middle vertical line of the arch top of the small lid. The sizes of the curvature diameters and the horizontal distance from the middle vertical line of the two central points can ensure the arch top to arranged on the highest position of the coke oven lid. The small lid can be singly made of fireproof materials. Beside, the inner part of the small lid can also be made of fireproof materials and the outer part of the small lid can also be made of heat preservation and heat insulation materials. The coke oven lid has the advantages of no falling down and low cost of manufacture and maintenance.

Description

Lid for coke oven

The utility model relates to a kind of lid for coke oven that is used on the pit kiln that refractory materials constructs.

Traditional Pingxiang stove (soil coke oven) does not have bell, and environmental pollution is big, and hot benefit is low, and coke quality is difficult to guarantee.

75 general type coking furnace roofs are provided with the bell of constructing with refractory materials integral body, though improved environmental pollution, but also brought disadvantages such as coal, compacting, quenching, the difficulty of the discharging of the coke, and the arch bell because thermal stresses is inhomogeneous the phenomenon of coke oven lid partial collapse often appears.

For addressing the above problem, CN 90207944.5 discloses a kind of movable bell that is made of heat resisting iron and embedded quarl, though in applying process, find again to a certain degree solving environmental pollution problems, and coal, compacting, quenching, the convenience of the discharging of the coke, initial cost is big, the burnt cost height of ton but also brought, disadvantages such as troublesome poeration.

The bell that a kind of refractory materials is constructed is disclosed among the CN 95117431.2 " unit combination type up igniting coke oven and coking process thereof ", it is made of a plurality of small wave type vaults, be provided with register between two small form arches, apply and show, this arch bell caves in seriously, and the bell life-span is short, the thermal-insulating sealing poor performance, fire box temperature is difficult to guarantee, thereby has influenced the coke quality.

To be that exploitation is a kind of do not cave in and lid for coke oven that the thermal-insulating sealing performance is good the purpose of this utility model.

The major technique feature of the utility model lid for coke oven is: whole bell is divided into several bar shaped tegillums, dilatation joint is arranged between tegillum, each tegillum is made of two dome shaped cover, be that tegillum is two domes, described two arcual radius-of-curvature are identical, the garden heart of two radius-of-curvature splits in the horizontal equidistant in the both sides of whole bell vault midperpendicular, and the size of radius-of-curvature and the two garden hearts will guarantee that apart from the distance of midperpendicular described vault is in the vertex of whole bell.

Described dilatation joint is provided with the quenching hole near a side of furnace wall, seals in the carbonization process, opens during quenching.

The embodiment accompanying drawings of the utility model lid for coke oven is as follows:

Fig. 1 is the synoptic diagram of two arch bells.

Fig. 2 is the bell overall schematic that places on the pit kiln.

Fig. 3 is the sectional schematic diagram of arch bell along radius-of-curvature.

As shown in the figure, 1 is left dome shaped cover, and 2 is right dome shaped cover, and 3 is dilatation joint, and 4 are the quenching hole, and 5 is flame retardant coating, and 6 is the thermal-insulating sealing layer, R ₁Be the radius-of-curvature of left dome shaped cover 1, R ₂Be the radius-of-curvature of right dome shaped cover 2, R ₁=R ₂, O ₁Be R ₁The garden heart, O ₂Be R ₂The garden heart, O ₁And O ₂Equate with the horizontal throw of midperpendicular OO.

Described dome shaped cover 1 and 2 can be used in a large number in factory, and available refractory materials or flame-proof thermal insulation material integral body or split are fired, and then closely to field assembly, can also be covered with the heat insulating sealing ply outside it near the side refractory materials in the stove.

The apparent advantage of the utility model is as follows:

1. long-time running is not caved in, and operation reaches that profile and structure are unchanged more than a year.

2. good thermal-insulating sealing performance is arranged, can make burner hearth keep best coking temperature, guaranteed The quality of coke has improved the thermal efficiency, has shortened coking time, has improved the production efficiency of stove.

3. can be used for the multiple type of furnace:

(1). can replace the whole bell of 75 type pit kiln to be used for 75 type pit kiln

(2). the bell that can replace unit combination type up igniting coke oven is also with in the above; Also can replace living

Moving bell.

4. initial cost is little, and maintenance cost is low, has reduced the burnt cost of ton.

Claims

1. lid for coke oven that is used on the pit kiln that refractory materials constructs, it is characterized in that it is made up of two dome shaped cover, the radius-of-curvature of described two dome shaped cover (two dome shaped cover) is identical, the garden heart of two radius-of-curvature splits in the horizontal equidistant in the both sides of whole bell vault midperpendicular, and the size of radius-of-curvature and the two garden hearts will guarantee that apart from the distance of midperpendicular described bell vault is in the vertex of whole bell.

2. lid for coke oven as claimed in claim 1 is characterized in that described bell vertically is divided into a plurality of pairs of arch tegillums along pit kiln, has dilatation joint between described tegillum.

3. lid for coke oven as claimed in claim 1 or 2 is characterized in that in the both sides and the described dilatation joint intersection of the close furnace wall of bell the quenching hole being arranged.

4. lid for coke oven as claimed in claim 3 is characterized in that described pair of arch tegillum constructed by refractory materials integral body or split to form.

5. lid for coke oven as claimed in claim 3 is characterized in that described pair of arch tegillum is made of refractory materials near the side in the stove, and its outside is covered with the heat insulating sealing ply.