CN2712924Y

CN2712924Y - L-type hanging screen for float glass melting furnace

Info

Publication number: CN2712924Y
Application number: CNU2004200527295U
Authority: CN
Inventors: 王贵祥; 茆令文
Original assignee: CHINA KAISHENG INTERNAT ENGINE
Current assignee: China Triumph International Engineering Co Ltd
Priority date: 2004-07-29
Filing date: 2004-07-29
Publication date: 2005-07-27
Anticipated expiration: 2014-07-29

Abstract

The utility model discloses an L-type hanging screen for float glass melting furnace, which is mainly suitable for coverage on the region of dog-house of glass-melting furnace. The utility model carries out improved design for the structure of nasal part of traditional L-type hanging screen to provide a new brick structure of nasal part. By the structural form of notch 3, 4 which alternates line and breaks joint, the exfoliation and abscission of wall hanging brick is effectively stopped. Simultaneously, optimizing gap coupling design of the bricks of male buckle and mother buckle makes that the electric melting brick of hanging screen does not break the notch of brick of mother buckle when the temperature of the heating furnace rises and the electric melting brick of hanging screen expands after being heated. So, then utility model avoids occur of fracture and obscission of the electric melting brick.

Description

A kind of L type hanging screen that is used for float glass smelting kiln

Technical field:

The utility model relates to the cladding system in a kind of float glass smelting kiln dog-house zone, particularly a kind of L type hanging screen that is used for the covering of float glass smelting kiln dog-house zone.

Technical background:

At present, generally adopted L type hanging screen as sealing above the dog-house and covering at the sheet glass melting furnaces, joined material according to tradition, L type hanging screen nose mainly contains two kinds of forms.One, nose adopts the individual layer sintered zirconium mullite bricks; Two, nose adopts the plain type composite brick, and promptly the pad face at L type hanging screen adopts electric fused zirconium corundum, and huyashi-chuuka (cold chinese-style noodles) (i.e. the outside) adopts sintered zirconium mullite bricks.But this compound notch is on same section, the hanging screen of these two kinds of structure formations is joined material, in the melting furnaces operational process, unavoidably has following shortcoming: 1, the nose brick adopts the individual layer sintered zirconium mullite bricks, because glass batch is the meta-alkalescence material, wherein contains soda ash and saltcake.Therefore, in melting process, can a large amount of NaOH alkali vapors of volatilization in the admixtion.After these alkali vapors evaporate on the surface of brick, can with the inner zirconium mullite of sintered zirconium mullite bricks chemical reaction take place mutually in the cohesion of the surface of brick, generate nepheline.Cause the surface local volumetric expansion of brick, phenomenon such as blistering occurs, peel off, thus influence work-ing life of hanging screen.And the brick bat that peels off enters in the glass metal, owing to be difficult to fusing, and form calculus at glass-board surface, and influence glass quality.2, the compound double buckle hanging screen of coventional type brick has effectively prevented peeling off of hanging screen brick owing to the pad face at the hanging screen nose has pasted the beautiful brick of one deck electric smelting zirconium steel.But this structure is brought a new problem again simultaneously, because the compound double buckle brick of nose adopts insertion slot type, and all notches in case wherein certain row has a brick to burst, will cause that the chain of that row fused cast refractories at this brick place comes off all on same section.Cause hanging screen nose hot side to lose the protection of the fused cast refractories of dense structure, do not reach the anti-effect of peeling off of expection.Extensively retrieve at the problems referred to above, do not find relevant solution as yet.

Summary of the invention:

The objective of the invention is to avoid above-mentioned the deficiencies in the prior art part, and a kind of novel nose brick structure is provided,, stop peeling off and come off of hanging screen brick effectively by the notch form of the interlacing fissure of displacement.

To achieve these goals, the utility model has adopted following technical scheme:

A kind of L type hanging screen that is used for float glass smelting kiln, it is made up of an air-cooled davit, one group of suspension hook that connects with air-cooled davit, one group of composite brick and baffle plate that is articulated on the suspension hook, described composite brick is cooperated through pegging graft by box brick that has dovetail-indent and the pin thread brick that has a dovetail and forms, and it is characterized in that composite brick dovetail-indent interface adjacent on the hanging screen segment distance that staggers.Just hanging screen composite brick interface is designed to the structure formation of the interlacing fissure of displacement, promptly pin thread brick (fused cast refractories) delegation brick type is big, and adjacent delegation's brick type is little; Corresponding with it box brick (sintered zirconium mullite bricks) delegation brick type is little, and adjacent delegation's brick type is big.From the side of hanging screen, its brickwork joint structure is arranged as the ancient city wall fissure of displacement, also claims city wall formula box structure.

Owing to adopted above-mentioned city wall formula box structure design, the composite brick interlacing fissure of displacement is pressed mutually, the utility model can stop peeling off of hanging screen brick effectively and come off, add the coupling gap of rational pin thread and box brick, make hanging screen fused cast refractories (being the pin thread brick) in the heating-up furnace temperature-rise period, during expanded by heating, be unlikely to the notch of box brick is squeezed off.Thereby avoid causing the generation of the obscission of fused cast refractories.

Description of drawings:

Fig. 1 is a front view of the present utility model;

The A-A sectional view of Fig. 2 Fig. 1;

The B-B sectional view of Fig. 3 Fig. 1

Embodiment:

As shown in Figure 1, the air-cooled davit of L type 8 lower ends are provided with the hanging screen that a baffle plate 7 builds arrangement by laying bricks or stones and block, and sloping portion is built by laying bricks or stones after the horizontal section, and the air-cooled davit of L type 8 upper ends connect a supporting plate 2, build several layers sintered zirconium mullite bricks 1 on it by laying bricks or stones, until building big arch top.The air-cooled davit 8 of L type is provided with suspension hook 9 and sintered zirconium mullite bricks is hooked fixing, is glass melter 10 below the hanging screen.Build composite brick by laying bricks or stones in that the sloping portion of the air-cooled davit 8 of L type is staggered, promptly pin thread brick 5 (fused cast refractories) delegation brick type is big, and adjacent delegation's pin thread brick 6 brick types are little; Corresponding with it box brick 5a (sintered zirconium mullite bricks) delegation brick type is little, and the adjacent box brick 6a of delegation brick type is big, arranges thereby form

adjacent brickwork joint

3,4 staggered city wall formulas.The cross-sectional structure of adjacent composite brick such as Fig. 2, shown in Figure 3, wherein the coupling gap of pin thread brick and box brick is suitable, can make hanging screen fused cast refractories (being the pin thread brick) in the heating-up furnace temperature-rise period, during expanded by heating, is unlikely to the notch of box brick is squeezed off.Thereby avoid causing the generation of the obscission of fused cast refractories.

Claims

1, a kind of L type hanging screen that is used for float glass smelting kiln, it is made up of an air-cooled davit, one group of suspension hook that connects with air-cooled davit, one group of composite brick and baffle plate that is articulated on the suspension hook, described composite brick is cooperated through pegging graft by box brick that has dovetail-indent and the pin thread brick that has a dovetail and forms, and it is characterized in that composite brick dovetail-indent interface adjacent on the hanging screen segment distance that staggers.