CN210458039U

CN210458039U - Composite insulating brick for coke oven top

Info

Publication number: CN210458039U
Application number: CN201822010460.9U
Authority: CN
Inventors: 马庆磊; 张家立
Original assignee: Changzhou Jiangnan Metallurgical Technology Co ltd
Current assignee: Changzhou Jiangnan Metallurgical Technology Co ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-05-05
Anticipated expiration: 2028-11-30

Abstract

The utility model relates to an insulating brick field especially relates to a compound insulating brick for coke oven roof. The heat insulation and insulation composite board sequentially comprises a cylinder brick layer, a heat insulation reflection layer and an aerogel layer from top to bottom; the heat insulation reflecting film layer adopts a metal reflecting film. The composite insulating brick is composed of a multi-layer structure and sequentially comprises a cylinder brick layer, an insulating layer, a heat insulation reflecting layer and an aerogel layer from top to bottom; the composite insulating brick used for the coke oven top has the advantages of high temperature resistance, low heat conduction, high compressive strength and good thermal stability.

Description

Composite insulating brick for coke oven top

Technical Field

The utility model relates to an insulating brick field especially relates to a compound insulating brick for coke oven roof.

Background

The coke oven top mainly comprises refractory bricks, the materials of the refractory bricks are respectively silica bricks, clay bricks, heat insulation bricks, quarry bricks and the like from inside to outside, and the heat insulation effect is poor; the current research shows that the heat loss of the surface of the coke oven body accounts for about 11 percent of the heat discharged by the coke oven, and the heat dissipation of the coke oven top platform accounts for about more than 40 percent of the heat dissipation of the surface of the coke oven body, so that the temperature of the coke oven top platform is high, the heat loss of the coke oven is high, the energy consumption is high, meanwhile, the operation environment of the coke oven top is severe, the operation of workers is not facilitated, and particularly in summer, the conditions of heatstroke, heat radiation disease and the like of the workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compound insulating brick for coke oven top which has high temperature resistance, low heat conduction, large compressive strength and good thermal stability.

The technical scheme of the utility model as follows:

the composite heat-insulating brick for the top of the coke oven is characterized by sequentially comprising a cylinder brick layer, a heat-insulating reflecting layer and an aerogel layer from top to bottom; the heat insulation reflecting film layer adopts a metal reflecting film. The composite heat-insulating brick is composed of a multi-layer structure and sequentially comprises a cylinder brick layer, a heat-insulating reflecting layer and an aerogel layer from top to bottom.

The aerogel layer is a silicon dioxide aerogel layer with the thickness of 2-6 mm. The aerogel layer is a silicon dioxide aerogel layer, has the thickness of 2-6mm, and has the characteristics of low heat conductivity coefficient, small density, high temperature resistance, corrosion resistance and the like. The silica aerogel can be in the form of a coating or in the form of a blanket.

The heat preservation felt comprises an upper felt layer and a lower felt layer; a plurality of first bulges in a hexagonal frame shape are uniformly distributed on the upper felt layer, and a plurality of second bulges capable of being inserted into the hexagonal grooves in the centers of the first bulges are uniformly distributed on the lower felt layer; the second bulges are matched with the hexagonal grooves in shape, and the first bulges are the same as the second bulges in height. Through setting up first protruding and the protruding structure of second not only strengthened the heat preservation effect of heat preservation felt, increased its intensity moreover, prolong its life.

The thickness of the heat insulation reflecting layer is 0.2-2 mm. The larger the thickness of the heat insulation reflecting layer is, the better the reflecting effect is.

The heat-insulating layer is a nano heat-insulating layer. Waterproof, high temperature resistant, coefficient of thermal conductivity is low, and it is effectual to keep warm.

The thickness of the nanometer heat-insulating layer is 20-50 mm. Thickness 20 ~ 50mm can adjust according to the heat preservation requirement, specific different operating mode that says so, and its furnace roof temperature is different, and furnace roof temperature is high, can choose for use thick a little, guarantees thermal-insulated effect.

The utility model has the advantages that: the composite insulating brick has the advantages of high temperature resistance, low heat conduction, high compressive strength, good thermal stability and the like, and various physical and chemical indexes are superior to those of the existing brick for the furnace roof.

Tests show that the composite insulating brick can effectively reduce the surface temperature of the furnace top, the surface temperature can be reduced by more than 30 ℃ under the same environmental temperature, the heat dissipation of the surface of the furnace top is greatly reduced, the heat loss of a coke oven is reduced, and the operating environment of the furnace top is improved.

The composite insulating brick can be directly used for the coke oven top to replace the original oven top cylinder brick, does not change the existing coke oven top structure, is simple and convenient to construct, and does not influence the normal production of the coke oven.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Wherein: FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a second bump structure of the present invention;

in the drawing, 1 is a quarry tile layer, 2 is a heat-insulating layer, 3 is a heat-insulating reflecting layer, 4 is an aerogel layer, 5 is an upper felt layer, 6 is a lower felt layer, 7 is a first protrusion, and 8 is a second protrusion.

Detailed Description

Referring to fig. 1, the composite insulating brick for the top of the coke oven is characterized by sequentially comprising a cylinder brick layer 1, an insulating layer 2, a heat insulation reflecting layer 3 and an aerogel layer 4 from top to bottom; the heat insulation reflecting film layer adopts a metal reflecting film. The composite heat-insulating brick is composed of a multi-layer structure and sequentially comprises a cylinder brick layer, a heat-insulating reflecting layer and an aerogel layer from top to bottom. The heat insulation reflecting film layer adopts a metal matrix reflecting film, has extremely high reflectivity to heat radiation, and has good heat resistance and heat insulation performance; the uppermost layer is the quarry tile which mainly has the functions of bearing pressure, resisting abrasion, resisting temperature, preventing water and the like.

The heat preservation felt comprises an upper felt layer 5 and a lower felt layer 6; a plurality of first bulges 7 in the shape of a hexagonal frame are uniformly distributed on the upper felt layer, and a plurality of second bulges 8 capable of being inserted into the hexagonal grooves in the centers of the first bulges are uniformly distributed on the lower felt layer; the second bulges are matched with the hexagonal grooves in shape, and the first bulges are the same as the second bulges in height. Through setting up first protruding and the protruding structure of second not only strengthened the heat preservation effect of heat preservation felt, increased its intensity moreover, prolong its life.

The thickness of the nanometer heat-insulating layer is 20-50 mm. The thickness is 20-50 mm, the furnace top temperature can be adjusted according to the heat preservation requirement, specifically, the furnace top temperature is different under different working conditions, the furnace top temperature is high, the thickness can be selected to be larger, and the heat insulation effect is ensured; the thermal insulation effect is of course best at 50 mm.

The nano heat insulating layer is formed by compounding high-temperature resistant materials such as nano silicon dioxide powder, ceramic fibers, boride, sepiolite and the like, and a dispersant, a binder, a penetrating agent and the like. The nano heat-insulating coating layer is formed by compounding high-temperature-resistant materials such as nano silicon dioxide powder, ceramic fibers, boride and sepiolite with a dispersant, a binder, a penetrating agent and the like to form a nano compound, and the nano heat-insulating coating layer has good strength and hardness after being formed, and is waterproof, high-temperature-resistant, low in heat conductivity coefficient and good in heat-insulating effect.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.

Claims

1. The composite heat-insulating brick for the top of the coke oven is characterized by sequentially comprising a cylinder brick layer, a heat-insulating reflecting layer and an aerogel layer from top to bottom; the heat insulation reflecting layer adopts a metal reflecting film; the heat-insulating layer comprises an upper felt layer and a lower felt layer; a plurality of first bulges in a hexagonal frame shape are uniformly distributed on the upper felt layer, and a plurality of second bulges capable of being inserted into the hexagonal grooves in the centers of the first bulges are uniformly distributed on the lower felt layer; the second bulges are matched with the hexagonal grooves in shape, and the first bulges are the same as the second bulges in height.

2. The composite insulating brick for the coke oven roof as claimed in claim 1, wherein the aerogel layer is a silica aerogel layer with a thickness of 2-6 mm.

3. The composite insulating brick for the coke oven top according to claim 1, wherein the thickness of the heat insulation reflecting layer is 0.2-2 mm.

4. The composite insulating brick for the coke oven roof as claimed in claim 1, wherein the insulating layer is a nano insulating layer.

5. The composite insulating brick for the coke oven top according to claim 4, wherein the thickness of the nano insulating layer is 20-50 mm.