Chemical properties

SiO2 Al2O3 MgO Fe2O3 Na2O
48-51% 31-34% 14-16% < 0.5% < 0.5%

 

physical property

index numerical value
Specific gravity of cordierite wool(g/cm3) 1.9-2.1
Coefficient of thermal expansion(20-1000℃) 10-6/k-1 < 3
specific heat(KJ/Kg) 830-901
Anti circulation temperatureK 300
Maximum operating temperature(℃) 1300
Heat resistance(℃) 800
Acid resistance(%) > 99
Alkali resistance(%) > 85
Water absorption rate(%) 23 ± 5

 

performance

 

150*150*300 60*60 0.5 1315 70
150*150*300 50*50 0.7 1050 58
150*150*300 40*40 0.7 883 65
150*150*300 25*25 1 573 67

Advantage

 

Dense cordierite honeycomb ceramic regenerator is widely used in HTAC for gas exchange and heat storage. It has the following advantages:

 

The regenerative flue gas waste heat recovery device is used to alternately switch the flue gas and air / gas to flow through the regenerator, which can maximize the recovery of physical heat of high-temperature flue gas, greatly save energy (generally 10% - 70%), improve the thermal efficiency of thermal equipment, and reduce CO2 emissions (10% - 70%).

 

Through the organization of lean oxygen combustion, the flame combustion area is expanded, and the flame boundary is almost extended to the furnace boundary, so that the temperature distribution in the furnace is uniform, and the emission of NOx in the flue gas can be reduced by more than 40%.

 

The increase of the average temperature in the furnace strengthens the heat transfer in the furnace, resulting in the increase of the output of thermal equipment with the same size by more than 20% and the reduction of the cost of the equipment.

 

Low calorific value fuel can obtain higher furnace temperature by means of high temperature preheating air or high temperature preheating gas, which expands the application range of low calorific value fuel.

 

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蜂窝陶瓷蓄热体

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产品介绍

     概述

    　　蓄热蜂窝陶瓷载体，又称为高温燃烧蓄热体，是蓄热式高温燃烧技术（HTAC技术）的关键和核心部件。已广泛用于冶金机械行业的各种推钢式加热炉、步进式加热 炉、热处理炉、锻造炉、溶化炉、钢包/中间包烘烤器、均热炉、辐射管燃烧器、罩式炉、高炉热风炉；建材行业的各种陶瓷窑炉、各种玻璃窑炉；石化行业的各种 管式加热炉、裂解炉以及其它工业炉窑。
    　　蓄热式高温燃烧技术是一种全新概念的燃烧技术，它把回收烟气余热与高效燃烧及降低NOx 排放等技术有机地结合起来，从而实现了极限节能和极限降低NOx排放量的双重目的。 

     化学性能

    SiO2 Al2O3 MgO Fe2O3 Na2O
    48-51% 31-34% 14-16% < 0.5% < 0.5%

     物理性能

    指标 数值
    堇青石毛比重(g/cm3) 1.9-2.1
    热膨胀系数(20-1000℃) 10-6/k-1 < 3
    比热(KJ/Kg) 830-901
    抗循环温度K 300
    最大操作温度(℃) 1300
    耐热性(℃) 800
    耐酸性(%) > 99
    耐碱性(%) > 85
    吸水率(%) 23 ± 5

     性能

     

    150*150*300 60*60 0.5 1315 70
    150*150*300 50*50 0.7 1050 58
    150*150*300 40*40 0.7 883 65
    150*150*300 25*25 1 573 67

     

     优点

    　    密实型堇青石蜂窝陶瓷蓄热体，广泛应用于蓄热式高温燃烧技术(HTAC)中，进行气体交换和蓄热，其具有如下的优点：

    　    采用蓄热式烟气余热回收装置，交替切换烟气和空气/煤气，使之流经蓄热体，能够最大限度地回收高温烟气的物理热，大幅度节约能源(一般节能10%~70%)、提高热工设备的热效率，同时减少CO2排放(10%~70%)。

    　    通过组织贫氧燃烧，扩展了火焰燃烧区域，火焰边界几乎扩展到炉膛边界，使得炉内温度分布均匀，烟气中NOx 的排放可减少40%以上。

    　    炉内平均温度增加，加强了炉内的传热，导致相同尺寸的热工设备，其产量可提高20%以上，降低了设备的造价。

    　    低热值燃料借助高温预热的空气或高温预热的燃气可获得较高的炉温，扩展了低热值燃料的应用范围。