CN219522461U - Electric smelting brick insulation can - Google Patents

Abstract

The utility model relates to an electric melting brick insulation box which comprises a box body with an opening at the upper part, wherein an insulation board is fixedly connected to the inner side of the side wall of the box body, an insulation wall body is fixedly connected to the inner side of the insulation board, and the insulation wall body is built by insulation bricks.

Description

Electric smelting brick insulation can

Technical Field

The utility model relates to an electric melting brick insulation can.

Background

The zirconia fused cast brick is mainly used for glass kilns, and the quality defect of the zirconia fused cast brick can directly influence the quality of glass products and also influence the service life of the glass kilns. The visual quality of zirconia fused cast bricks generally refers to whether or not cracks of products exceed the use standard, and thermal cracking is a common defect.

When the annealing process of the fused zirconia brick after casting is too fast, the temperature is reduced to be lower than 1140 ℃ to generate cold cracks of the product. The cracks formed above 1140 ℃ are thermal cracks. The reason for the formation of thermal cracks: the fused brick can not form thermal cracks in the liquid state, and only forms thermal cracks in the conversion process when the liquid state is converted into the solid state, and the initial setting temperature of the fused brick in the cooling process after casting is about 1600 ℃. The temperature range of the thermal cracking is 1200 ℃ to 1600 ℃. The thermal cracking is caused by thermal expansion and contraction, for example, the corner edge part of the product has less heat accumulation and is cooled firstly, that is, the shrinkage is faster, the heat accumulation in the middle part of the product is larger, the shrinkage is slower, and the corner edge part which is shrunk firstly can generate a cross-edge crack; secondly, the product is subjected to vibration and impact to form mechanical cracks during the temperature of 1200-1600 ℃; thirdly, the high temperature factor of product casting makes the four-week heat preservation material soften to aggravate the sinking factor under the action of gravity of the product, and the product is deformed in the temperature range of 1200 ℃ to 1600 ℃ to cause cracks. The normal proportion of the scrapped bricks caused by the hot cracking is about thirteen to fifteen percent of the total production, the scrapped proportion of the hot cracking caused by the sinking factor is about ten percent, and the hot cracking is a link with the largest scrapped proportion of the zirconia fused cast bricks and is the largest waste source. Therefore, improvement and innovation of the heat preservation capability of the heat preservation box are imperative.

Application number CN201721099771.6 discloses an electric smelting brick insulation can, forms the filling layer through fixed wire netting on the box inner wall, sets up insulation material in the filling layer and improves the heat preservation effect of whole insulation can, but the structure of filling material is unstable, softens the deformation along with the wire netting easily under the environment of high temperature solution casting, leads to the hot crack to produce.

Disclosure of Invention

In order to solve the problems, the utility model provides an electric smelting brick insulation can.

The object of the utility model is achieved in the following way: the utility model provides an electric brick insulation can, includes top open-ended box 1, 1 inboard fixed connection heated board 2 of lateral wall of box, 2 inboard fixed connection heat preservation wall body of heated board, heat preservation wall body is built by laying bricks or stones by 3.

Further, the insulating brick 3 is an electric fused zirconia corundum brick.

Further, the thickness of the upper part to the lower part of the heat-insulating wall body is gradually reduced.

Further, a cover plate 11 is arranged inwards at the opening of the top of the box body 1, and the cover plate 11 covers the heat insulation plate 2 and the heat insulation bricks 3.

Further, the insulating bricks 3 and 3, and the insulating bricks 3, the box 1 and the insulating board 2 are fixedly connected through heat-resistant mortar.

Compared with the prior art, the heat-insulating wall structure is formed by the built heat-insulating bricks, the heat-insulating effect is good, the built structure is more stable, and the heat-insulating wall structure is not easy to soften and deform.

Drawings

FIG. 1 is a cross-sectional view of an incubator without a sand mold;

FIG. 2 is a cross-sectional view of a molding sand mold disposed in the incubator;

FIG. 3 is a cross-sectional view of the insulation wall in the insulation can with a plurality of layers of insulation bricks disposed on the upper portion.

Wherein, 1 box body; 11 cover plates; 2, a heat preservation plate; 3, insulating bricks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used for convenience of description and for simplifying the description only with respect to the orientation or positional relationship shown in the drawings, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

As shown in the attached drawings 1-2, the electric melting brick insulation box comprises a box body 1 with an opening at the upper part, wherein an insulation board 2 is fixedly connected to the inner side of the side wall of the box body 1, and in actual use, a molding sand mould is arranged in the box body 1, an insulation wall is fixedly connected to the inner side of the insulation board 2, and the insulation wall is built by insulation bricks 3.

The inboard fixed connection heated board 2 of box 1 lateral wall belongs to prior art, discovers in the in-service use that the fragment of brick disability rate that obtains through this kind of insulation can production is about 20%, if the operation is improper still can be higher, after improving the above-mentioned insulation construction of adoption, discovers and pours solution cooling rate and compares in only the structure 2 of heated board and reduce 35%, and the disability rate reduces to 7%, summarises reason discovery, firstly the insulation wall structure has improved the heat preservation ability of insulation can, and on the other hand the structure of building by laying bricks or stones is more firm, is difficult for softening deformation.

Preferably, as shown in fig. 1, the masonry structure of the insulating bricks 3 is similar to a common building masonry structure, and brick joints of the insulating bricks 3 are staggered.

Further, the insulating brick 3 is an electric fused zirconia corundum brick, namely, the same structure as the cast brick is used, the insulating effect is better, and the insulating brick is hardly softened by heat of a casting solution when a molding sand mold is arranged.

Further, the thickness of the upper part of the heat-insulating wall body is larger than that of the lower part, and in detail, as shown in fig. 3, the heat-insulating wall body is of a double-layer heat-insulating brick structure; the outer heat preservation wall body is wedge-shaped structure for from the top down becomes thinner gradually, makes the thickness of upper portion fragment of brick be greater than the lower part through cutting fragment of brick, and the advantage that sets up like this is that the feed liquid of fused brick is by last, from outside to interior order layer by layer solidification, and the part that has cooled can form the shrinkage cavity because of expend with heat and contract with cold, often feeds the part that the lower floor has solidified through the feed liquid that upper strata did not solidify, if upper strata feed liquid solidifies too fast, can lead to the lockhole too big or too much, seriously influences fragment of brick quality, through making the thickness of upper portion be greater than the thickness of lower part, makes upper strata feed liquid cooling rate further reduce, improves the feeding rate, improves finished product quality.

Further, a cover plate 11 is arranged inwards at the opening of the top of the box body 1, and the cover plate 11 covers the heat insulation plate 2 and the heat insulation bricks 3 to protect the heat insulation structure.

Further, the insulating bricks 3 and 3, the insulating bricks 3, the box 1 and the insulating board 2 are fixedly connected through heat-resistant mortar, and phosphate mortar and sodium silicate mortar are preferably adopted.

The production process of the utility model comprises the following steps:

s1, firstly welding a formed box body 1, fixing heat-insulating plates 2 at four side walls of the box body 1, wherein the heat-insulating plates 2 can be heat-insulating plates 2 common in the prior art, and then welding an upper cover plate 11;

s2, turning over the box body 1, lifting the box body by a crane with the opening downwards, and allowing workers to enter the lower part of the opening of the box body 1;

s3, a first layer of heat-insulating wall is built up from the cover plate 11 in a close-fitting mode through the heat-insulating plate 2, unused heat-insulating bricks 3 are cut into bricks with different thicknesses after the completion, a second layer of heat-insulating wall is built up from the cover plate 11 from bottom to top and from thickness to thinness in a close-fitting mode through the heat-insulating wall, the structure shown in FIG. 3 is formed, and mortar is turned over after cooling and shaping.

The used insulating brick 3 can be a zirconia fused cast brick produced by a manufacturer, so that the purposes of self-production and self-use and cost saving are achieved, meanwhile, the zirconia fused cast brick also has a better insulating effect, and the insulating brick 3 is fixedly connected with the insulating brick 3, the box body 1 and the insulating board 2 through heat-resistant mortar.

The working process of the incubator belongs to the mature prior art, and the utility model does not relate to the improvement of the process and is not repeated.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the general inventive concept, and these should also be regarded as the scope of the utility model.

Claims (5)

1. The utility model provides an electric brick insulation can, includes top open-ended box (1), box (1) lateral wall inboard fixed connection heated board (2), its characterized in that: the inner side of the heat insulation board (2) is fixedly connected with a heat insulation wall body, and the heat insulation wall body is built by heat insulation bricks (3).

2. An electric brick incubator as recited in claim 1, wherein: the insulating brick (3) is an electric fused zirconia corundum brick.

3. An electric brick incubator as recited in claim 2, wherein: the thickness of the heat preservation wall body from the upper part to the lower part is gradually thinned.

4. A fused brick incubator as recited in claim 3 wherein: the top opening of the box body (1) is internally provided with a cover plate (11), and the cover plate (11) covers the heat insulation plate (2) and the heat insulation bricks (3).

5. A fused brick incubator as recited in claim 3 wherein: the insulating bricks (3) are fixedly connected with the insulating bricks (3) and the insulating bricks (3) are fixedly connected with the box body (1) and the insulating board (2) through heat-resistant mortar.