CN208333118U

CN208333118U - A kind of brick structure on fired magnesia-calcium brick kiln car

Info

Publication number: CN208333118U
Application number: CN201820576259.4U
Authority: CN
Inventors: 申向利; 焦永生; 冯云康
Original assignee: Shanxi Luweibao Taigang Refractories Co Ltd
Current assignee: Shanxi Luweibao Taigang Refractories Co Ltd
Priority date: 2018-04-23
Filing date: 2018-04-23
Publication date: 2019-01-04
Anticipated expiration: 2028-04-23

Abstract

The utility model relates to kiln cars to fill brick field.A kind of brick structure on fired magnesia-calcium brick kiln car, kiln car steel construction coplanar is placed with working lining brick, positioning brick has been placed above in working lining brick, product brick is placed above in positioning brick, product brick is arch brick, the length of product brick is 150mm-1000mm, product brick with a thickness of 100mm, the small head width of product brick is 85-146mm, the big head width 154-215mm of product brick, the sum of small head width and big head width are 300mm, positioning brick is multiple rows of placement at equal intervals, it is often ranked to erect on a brick and places a scheduled production product brick, product brick is placed greatly upside down, product brick thickness direction is parallel to positioning brick septal direction.

Description

A kind of brick structure on fired magnesia-calcium brick kiln car

Technical field

The utility model relates to kiln cars to fill brick field.

Background technique

Fired magnesia-calcium brick is a kind of burnt product, is chiefly used in the furnace lining of the AOD and VOD refining furnace of metallurgy industry, AOD refining Furnace is relatively more using the product brick of big symbol, and maximum length can reach 1200mm.The product brick of forming is packed into kiln car and carries out Firing, traditional product brick entrucking mode is to use through-thickness paperback, due to stress in the product brick sintering process of paperback Unevenly, it is easy to which generating the product brick crackle of the crackle of thickness direction, especially length greater than 500mm can be more serious, burns It is very low at qualification rate, only 20 ~ 30% when low.

According to the inherent characteristic of magnesia-calcium brick, product brick size has contraction in sintering procedure, through-thickness paperback Product brick is in sintering procedure, since lower product brick is influenced by upper product brick pressure, the receipts of upper and lower part product brick Contracting than be it is different, more can be bigger toward the shrinkage ratio of following product brick thickness, thickness can be smaller.Using through-thickness Eight layers of product brick measuring and calculating of paperback, topmost can differ 2.5 ~ 3mm with nethermost thickness.The thickness of product brick is to close Key size, the requirement to size is very strict, product brick standard requirements thickness ± 1.0mm, the production of through-thickness paperback The thickness of product brick can not meet product standard and the requirement of client, it is often necessary to which the rubbed brick process for increasing product brick will produce The thickness of product brick is milled into standard size and can dispatch from the factory, and the process cost of such product can be very high.

Utility model content

The technical problem to be solved by the utility model is to the problem of improving product brick sintering qualified rate and solution product The problem of brick thickness inconsistency.

The technical scheme adopted by the utility model is the brick structure on a kind of fired magnesia-calcium brick kiln car, kiln car steel construction Coplanar is placed with working lining brick (upper surface that kiln car steel construction plane refers to the kiln car steel construction of the kiln car of steel and iron manufacturing), Positioning brick has been placed above in working lining brick, and product brick is placed above in positioning brick, and product brick is arch brick, and the length of product brick is 150mm-1000mm, product brick with a thickness of 100mm, the small head width of product brick is 85-146mm, the big head width of product brick 154-215mm, the sum of small head width and big head width are 300mm, and positioning brick is multiple rows of placement at equal intervals, are erected on the brick that is often ranked It stands up and sets a scheduled production product brick, product brick is placed greatly upside down, and product brick thickness direction is parallel to positioning brick septal direction.

As a kind of preferred embodiment: every row erects the product brick that 1-3 layers of a row is horizontally arranged on the product brick microcephaly placed, The production that the width direction of horizontal positioned product brick is placed above perpendicular to the length direction for erectting the product brick placed, positioning brick The whole height (whole height for referring to the product brick placed vertically and horizontal positioned product brick) of product brick is no more than 1000mm.

The beneficial effects of the utility model are: the crackle of thickness direction significantly reduces in product brick sintering procedure, effectively The sintering qualified rate for improving product brick reduces the consumption of process cost, has saved production cost, product brick sintering qualified rate 95% or more can be reached.Product brick thickness in sintering procedure from Impact direction becomes non-stress direction, and shrinkage ratio is obvious Reduce, meets the requirement of product brick thickness consistency, product brick, which does not need to grind, can directly reach making for user With requiring, the grinding technology of product brick is eliminated, production cost has been saved.

Detailed description of the invention

Fig. 1 is the utility model arch brick three-view diagram schematic diagram；

Fig. 2 is the front view schematic diagram of the utility model；

Fig. 3 is the left side view schematic diagram of the utility model；

Fig. 4 is the positioning brick top view illustration of the utility model；

Wherein, 1, kiln car steel construction, 2, working lining brick, 3, erect the product brick placed, 4, horizontal positioned product brick,

5, brick, 6, positioning brick interval are positioned.

Specific embodiment

As shown in Figure 1, the length of the product brick in the present embodiment is 650mm, with a thickness of 100mm, big head width is 180mm, small head width are 120mm.As shown in Figures 2 and 3, it positions and places product brick on brick.Product brick is in placement process, often It is ranked and places a row on a brick and erect the product brick placed, product brick is placed greatly upside down, and product brick thickness direction is parallel to fixed Position brick septal direction is erect horizontal on the product brick microcephaly placed to can disposably fire more product bricks in every row The product brick of 2 layers of a row is placed, the width direction of horizontal positioned product brick is perpendicular to the length side for erectting the product brick placed To the stability for erectting the product brick placed can be improved in horizontal positioned product brick.The firing for the product brick which is placed Qualification rate is 96.5%, and thickness 100% is within the scope of the standard error of ± 1mm.

Claims

1. the brick structure on a kind of fired magnesia-calcium brick kiln car, it is characterised in that: kiln car steel construction coplanar is placed with working lining Positioning brick has been placed above in brick, working lining brick, and product brick has been placed above in positioning brick, and product brick is arch brick, the length of product brick Degree is 150mm-1000mm, product brick with a thickness of 100mm, the small head width of product brick is 85-146mm, the major part of product brick Width is 154-215mm, and the sum of small head width and big head width are 300mm, and positioning brick is multiple rows of placement at equal intervals, and be often ranked position It is erect on brick and places a scheduled production product brick, product brick is placed greatly upside down, and product brick thickness direction is parallel to positioning brick septal direction.

2. the brick structure on a kind of fired magnesia-calcium brick kiln car according to claim 1, it is characterised in that: every row, which erects, to place Product brick microcephaly on be horizontally arranged 1-3 layers of a row product brick, the width direction of horizontal positioned product brick is perpendicular to setting The whole height of the length direction of the product brick of placement, the product brick that positioning brick is placed above is no more than 1000mm.