CN201785301U

CN201785301U - Arch angle structure of full-oxygen burning glass kiln

Info

Publication number: CN201785301U
Application number: CN2010202990198U
Authority: CN
Inventors: 郭勇
Original assignee: ZHENGZHOU DONGFANG ANCAI REFRACTORY CO Ltd
Current assignee: ZHENGZHOU DONGFANG ANCAI REFRACTORY CO Ltd
Priority date: 2010-08-20
Filing date: 2010-08-20
Publication date: 2011-04-06
Anticipated expiration: 2020-08-20

Abstract

The utility model discloses an arch angle structure of a full-oxygen burning glass kiln, comprising a large arch of the glass kiln, an arch angle brick and a breast wall of the glass kiln, wherein the breast wall is used for supporting the arch angle brick; and the edge of the arch angle brick deviates inwards relative to the inner side wall of the breast wall of the glass kiln. In the utility model, the inner side wall of the breast wall of the glass kiln and the edge of the arch angle brick are not in the same plane, and large amount of melted flowing substance generated when the full-oxygen burning glass kiln is in working flows down directly along the arch angle brick. The arch angle structure can reduce washing and erosion to the breast wall of the glass kiln, thus reducing the influence on the service life of the full-oxygen burning glass kiln.

Description

A kind of arch corner structure of full-oxygen combustion glass furnace

Technical field

The utility model belongs to the field of glass furnace high-temperature fusion, relates in particular to a kind of arch corner structure of full-oxygen combustion glass furnace.

Background technology

(also claim: pure oxygen burning) system is a kind of novel combustion system to full-oxygen combustion, so-called pure oxygen burning provides the pattern of oxygen when being meant fuel combustion be to surpass 99% oxygen, this oxygen can be the atmosphere gas of pipe-line transportation, also can be liquid oxygen through step-down, compare air-breathing mode commonly used, owing to reduced the introducing of about nitrogen more than 78%,, extensively applied to the high-temp combustion field at present so efficiency of combustion is higher.The pure oxygen burning system has become the better choice scheme that replaces conventional firing system in a plurality of fields such as glass melter, metallurgy, waste incineration, generatings in recent years, and this is because pure oxygen burning can not only reduce NOx, CO greatly ₂, pollutent such as dust discharging, and energy-conservation, improve output and quality and reduce facility investment and save all many-sides such as factory building place good performance is all arranged.Using pure oxygen burning has in recent years become a kind of trend in the high temperature melting field the America and Europe, and range of application covers the multiple product and the type of furnace.

Compare traditional air-breathing mode, after glass melter adopted pure oxygen combustion technology, the temperature of its superstructure increased little, yet variation has taken place the chemical constitution of the residing gas part of superstructure, wherein the volumetric concentration of water vapor increases 3 times approximately, and the volumetric concentration of alkali volatile matter increases to 3-6 doubly.The alkali volatile matter of high volumetric concentration is extremely harmful to the use properties of silica brick in the superstructure, a large amount of low viscosity sodium silicate melts that glass furnace can form when ordinary production, thereby silica brick is caused serious erosion, because the volumetric concentration height of water vapour, the at high temperature easier formation of this melt has increased the weight of the erosion action to silica brick of alkali volatile matter and condensation product.Practical measurement and mathematical simulation test show that the distribution of the volumetric concentration of alkali volatile matter is uneven in glass melter superstructure gas part, and the volumetric concentration of alkali volatile matter is higher than the volumetric concentration of the alkali volatile matter at other position near the arch top.

Because the flame space refractory materials on the full-oxygen combustion glass furnace adopts electrocast refractories mostly at present, during work under the condition of high temperature glassy phase of electrocast refractories separate out, in the glass furnace under the acting in conjunction of dust, water vapour, big arch position can produce a large amount of fusion trickling things, the structure at the arch angle of existing full-oxygen combustion glass furnace as shown in Figure 1, comprise the big arch 1 of glass furnace, arch angle brick 2 and glass furnace breastwork 3, arch angle brick edge 4 be with glass furnace breastwork inner side-wall 5 in one plane.In this structure, a large amount of fusions trickling things that full-oxygen combustion glass furnace when work produces can directly flow to breastwork along the arch angle brick, produce intensive and wash away, corrode, and there is tangible influence in life-span of full-oxygen combustion glass furnace.

The utility model content

The purpose of this utility model provide a kind of can reduce fusion trickling thing to full-oxygen combustion glass furnace breastwork wash away, the arch corner structure of erosive full-oxygen combustion glass furnace.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of arch corner structure of full-oxygen combustion glass furnace comprises the big arch of glass furnace, arch angle brick and the glass furnace breastwork that supports the arch angle brick, and arch angle brick edge inwardly departs from respect to glass furnace breastwork inner side-wall.

The distance that arch angle brick edge inwardly departs from glass furnace breastwork inner side-wall is 1～200mm.

In the utility model, arch angle brick edge inwardly departs from respect to glass furnace breastwork inner side-wall, glass furnace breastwork inner side-wall and arch angle brick edge be not on a plane, the a large amount of fusion trickling things that produce during the work of full-oxygen combustion glass furnace directly flow down along the arch angle brick, can reduce the washing away, corrode of glass furnace breastwork, thereby reduce influence the life-span of full-oxygen combustion glass furnace.

Description of drawings

Fig. 1 is the arch corner structure structural representation of full-oxygen combustion glass furnace of the prior art;

Fig. 2 is the utility model structural representation.

Embodiment

As shown in Figure 2, a kind of arch corner structure of full-oxygen combustion glass furnace, comprise the big arch 1 of glass furnace, arch angle brick 2 and the glass furnace breastwork 3 that supports arch angle brick 2, the distance that arch angle brick edge 4 inwardly departs from respect to glass furnace breastwork inner side-wall 5 is 1～200mm, preferred 50mm.

During the utility model work, with a large amount of fusion trickling things that produce, because arch angle brick edge 4 inwardly departs from respect to glass furnace breastwork inner side-wall 5, fusion trickling thing will directly flow down along arch angle brick edge 4, can reduce the washing away, corrode of glass furnace breastwork 3, thereby reduce influence the life-span of full-oxygen combustion glass furnace.

Claims

1. the arch corner structure of a full-oxygen combustion glass furnace comprises the big arch of glass furnace, arch angle brick and the glass furnace breastwork that supports the arch angle brick, it is characterized in that arch angle brick edge inwardly departs from respect to glass furnace breastwork inner side-wall.

2. the arch corner structure of full-oxygen combustion glass furnace as claimed in claim 1 is characterized in that, the distance that arch angle brick edge inwardly departs from glass furnace breastwork inner side-wall is 1～200mm.