CN212451292U - Integrally cast sealing block furnace end structure - Google Patents

Abstract

The utility model relates to a clean type heat recovery coke oven of metallurgical industry builds technical field by laying bricks or stones, especially relates to a seal block furnace end structure of monolithic pouring, a serial communication port, the mouth shape structure that machine side furnace end and/or burnt side furnace end take shape for monolithic pouring, and the inboard of furnace end adopts the ditch tongue structure with the silica brick of adjacent carbomorphism room wall to be connected. The coke oven is a clean heat recovery coke oven. Compared with the prior art, the beneficial effects of the utility model are that: the integrated pouring structure is reasonable in design, simple and compact in structure and good in sealing effect, and the furnace end is meshed with the silicon bricks inside the carbonization chamber to be built, so that the integrity of the furnace end is improved. The height expansion difference generated by the bricks made of two materials after baking the furnace is reduced, the strength and the tightness of the furnace body are enhanced, the service life of the furnace body is prolonged, the environmental pollution is reduced, and the economic benefit of enterprises is improved.

Description

Integrally cast sealing block furnace end structure

Technical Field

The utility model relates to a clean type heat recovery coke oven of metallurgical industry builds technical field by laying bricks or stones, especially relates to a seal block furnace end structure is pour to whole.

Background

The uppermost part of the furnace body of the modern coke oven is the furnace top, the combustion chambers and the carbonization chambers are arranged alternately below the furnace top, and the modern coke oven adopts silica bricks to build the walls of the carbonization chambers. The silicon bricks of the masonry carbonization chamber adopt a groove tongue structure so as to reduce the blowby of crude gas and increase the strength of the masonry.

The utility model discloses a chinese utility model patent of application number 200710037494.0 discloses an adopt coke oven of upright line pole to build by laying bricks or stones construction method, this document discloses how to make and build by laying bricks or stones construction dimension more accurate, but do not solve and how to avoid the furnace end to be stepped on alive easily during building a stove, and the furnace end is able to bear or endure firebrick and inside silica brick because the material is different, the expansion rate is also different, lead to two kinds of material bricks behind the baker to produce the altitude poor inflation, the brickwork joint splits easily, sealed effect subalternation problem, the furnace end fracture back, outside air probably gets into, inside crude gas also spills over easily, form the vicious circle that environmental pollution and enterprise's economic.

Disclosure of Invention

The utility model aims at providing a whole sealed piece furnace end structure of pouring overcomes prior art's is not enough, adopts whole furnace end structure of pouring, and the furnace end brick is easily stepped on alive during the solution is built a stove, and the refractory brick of furnace end is able to bear or endure firebrick and inside silica brick material expansion rate is different, leads to two kinds of material bricks behind the baker to produce the height to the inflation poor, and the problem that the brickwork joint cracked easily reduces environmental pollution, improves enterprise economic benefits.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

the utility model provides an integrally cast seal block furnace end structure, includes the machine side furnace end and the burnt side furnace end of coke oven, its characterized in that, machine side furnace end and/or burnt side furnace end are the mouth shape structure of integrally cast, and the inboard of furnace end adopts the ditch tongue structure with the silica brick of adjacent carbomorphism room wall to be connected.

The coke oven is a clean heat recovery coke oven.

Compared with the prior art, the beneficial effects of the utility model are that: 1) the integrated pouring structure is reasonable in design, simple and compact in structure and good in sealing effect, and the furnace end is meshed with the silicon bricks inside the carbonization chamber to be built, so that the integrity of the furnace end is improved. 2) The problem of during the bricklaying furnace end brick easily stepped on alive, and the firebrick of furnace end is different because the material is different with inside silica brick, and the expansion rate is also different, leads to two kinds of material bricks behind the baker to produce the height to the inflation poor, and the brickwork joint splits easily, and sealed effect is poor is solved. 3) The protection plate and the furnace wall are fully ensured to have no wild wind entering, the strength and tightness of the furnace body are enhanced, the service life of the furnace body is prolonged, the environmental pollution is reduced, and the economic benefit of enterprises is improved.

Drawings

Fig. 1 is a schematic view of an embodiment of the furnace end structure of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is the utility model discloses the whole template of pouring arranges the sketch map.

In the figure: 1-silica brick, 2-sealing block structure, 3-carbonization chamber bottom, 4-protection plate, 5-side mold, 6-scaffold tube, 7-large arch mold and 8-support.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

See fig. 1-3, it is the intention of the utility model to show an embodiment of a monolithic casting seal block furnace end structure, the interior of the carbonization chamber is built by using silica bricks 1 according to the conventional process, the machine side furnace end and the coke side furnace end are in a monolithic casting forming mouth-shaped structure, and the inner side of the furnace end is connected with the silica bricks 1 of the adjacent carbonization chamber wall by adopting a groove tongue structure. The sealing block structure 2 integrally poured by the castable replaces the traditional furnace end brick and is meshed with the internal silica brick 1 for masonry, the integrity of the furnace end is improved, and no wild wind enters the space between the protective plate and the furnace wall. Not only the strength and the tightness of the furnace body are enhanced, but also the service life of the furnace body is prolonged.

The castable is an aluminum refractory material which is produced by a certain company in China and has a KNLK-A mark, and the physical and chemical indexes and the performance index of the structure of the sealing block after pouring are shown in a table 1.

The utility model discloses the concrete operation process that the template was set up and was pour in the construction of whole pouring material sealed block furnace end structure as follows:

1) pouring the bottom section: building the carbonization chamber bottom 3, after installing the protection plate 4, firstly using the bricks and the protection plate as a template for pouring the bottom section of the furnace door frame, and leading in the pouring material and then vibrating to be compact;

2) pouring the middle section: a wood mold is used for supporting the side mold 5, a shelf pipe 6 is used for supporting and preventing the mold from running between the side molds at two sides, a polyethylene plastic plate with the thickness of 20mm is placed between the protective plates of the carbonization chambers with two holes to be used as a template 5, and the pouring material is guided from the upper side and then vibrated and compacted, wherein the process is finished before the pouring material at the bottom section is initially solidified;

3) pouring the arch section: erecting a large arch mould 7, arranging a plurality of supports 8 from the bottom of a carbonization chamber to prevent the mould from running during pouring and vibrating, guiding pouring materials from the top of the furnace, vibrating to be dense and polishing the surface; the step is completed before the initial setting of the castable in the previous step;

4) after all the casting materials are finally solidified, the side mold is removed, and the large arch mold needs to be removed after 24 hours;

5) and (4) after all the moulds are dismantled, checking whether the outer surface of the casting body has the phenomena of mould running and vibration leakage, and if so, timely polishing or repairing by using the same-material casting material.

The utility model discloses the integral type simple structure of furnace end is compact, and the thermal shock stability of pouring the material is good, behind the baker with the silica brick, characteristics such as sealed effectual. The problem of the furnace end brick is easily stepped on the fracture of living during the bricklaying is solved, and the sealed piece of furnace end is close with inside silica brick expansion rate, does not have the difference of elevation expansion between two kinds of material bricks behind the baker, and the brick seam is difficult to split, so the coke oven integral seal effect can be strengthened, environmental pollution before the transformation and enterprise economic benefits decline scheduling problem are solved to one side.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. The utility model provides an integrally cast seal block furnace end structure, includes the machine side furnace end and the burnt side furnace end of coke oven, its characterized in that, machine side furnace end and/or burnt side furnace end are the mouth shape structure of integrally cast, and the inboard of furnace end adopts the ditch tongue structure with the silica brick of adjacent carbomorphism room wall to be connected.

2. The monolithic casting seal block burner structure of claim 1, wherein the coke oven is a clean heat recovery coke oven.

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