Porous medium burner material and preparation method thereof

A porous media and burner technology, which is applied in the field of porous media burner materials and its preparation, can solve the problems of undeveloped energy, low energy utilization efficiency, and serious environmental pollution, and achieve excellent thermal shock resistance and reduce CO2 and emissions of pollutants, the effect of high combustion rates

Inactive Publication Date: 2011-02-02
BAOSHAN IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] my country's energy utilization efficiency is low and environmental pollution is serious; a large amount of low-grade, low-calorific-value energy has not been developed and utilized, and the resulting waste and environmental pollution are particularly serious

Method used

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  • Porous medium burner material and preparation method thereof
  • Porous medium burner material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation of embodiment 1:

[0043] Form the ingredients according to the weight percentage of the ceramic powder in Example 1 in Table 1, add a binder and additives other than the defoamer, grind together for 4 hours through a ball mill, finally add the defoamer silicone+0.05wt%, continue Ball milling for 1 hour to obtain a uniform slurry, adding appropriate water to control the viscosity of the slurry at 2Pa.s. The organic foam is pretreated to remove the inter-network film, 20PPI polyurethane foam is immersed in 20% NaOH solution, hydrolyzed at 40°C for 3 hours, rubbed repeatedly, washed and dried. Then cut into various sizes as needed. Immerse the foam in the prepared slurry, squeeze out the excess slurry, repeat this process many times, and reach the green body density of 2.5g / cm 3 . The prepared porous green body is firstly dried naturally at room temperature for 24 hours, and then dried in an oven at 110° C. for 24 hours. When the water content is contro...

Embodiment 2

[0044] The preparation of embodiment 2:

[0045] Form the ingredients according to the weight percentage of the ceramic powder in Example 2 in Table 1, add a binder and additives other than the defoamer, grind together for 3 hours through a ball mill, finally add the defoamer silicone+0.15wt%, and continue Ball milling for 1.5 hours to obtain a uniform slurry, adding appropriate water to control the viscosity of the slurry at 3Pa.s. The organic foam is pretreated to remove the inter-network film, 30PPI polyurethane foam is immersed in a 15% NaOH solution, hydrolyzed at 50°C for 4 hours, rubbed repeatedly, washed and dried. Then cut into various sizes as needed. Immerse the foam into the prepared slurry, squeeze out the excess slurry, repeat this process many times, and reach the green body density of 2.0g / cm 3 . The prepared porous green body is firstly dried naturally at room temperature for 26 hours, and then dried in an oven at 100° C. for 24 hours. When the water conten...

Embodiment 3

[0046] The preparation of embodiment 3:

[0047] Form the batching according to the weight percentage of the ceramic powder of Example 3 in Table 1, add binders and additives other than the defoamer, grind together for 2 hours through a ball mill, finally add defoamer silicone+0.20wt%, continue Ball milling for 2 hours to obtain a uniform slurry, adding appropriate water to control the viscosity of the slurry at 4Pa.s. The organic foam is pretreated to remove the inter-network film, 40PPI polyurethane foam is immersed in a 10% NaOH solution, hydrolyzed at 50°C for 6 hours, rubbed repeatedly, washed and dried. Then cut into various sizes as needed. Immerse the foam in the prepared slurry, squeeze out the excess slurry, repeat this process many times, and reach the green body density of 1.5g / cm 3 . The prepared porous green body is firstly dried naturally at room temperature for 30 hours, and then dried in an oven at 90° C. for 24 hours. When the water content is controlled t...

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Abstract

The invention discloses a porous medium burner material. The porous medium burner material comprises ceramic powder, a binding agent, a dispersing agent and a suspending agent, wherein the ceramic powder consists of the following components in percentage by weight: 15 to 40 percent of zirconite powder, 30 to 50 percent of fine mullite powder, 5 to 10 percent of fine zirconium oxide powder, 10 to 20 percent of soft clay, 5 to 10 percent of active aluminum oxide powder and 1 to 5 percent of silicon dioxide micro powder; the binding agent is 30 to 45 percent based on the total weight of the ceramic powder; the dispersing agent is 0.1 to 0.5 percent based on the total weight of the ceramic powder; the suspending agent is 0.2 to 1.0 percent based on the total weight of the ceramic powder; and the particle size of the fine powder is not greater than 250 meshes. The preparation method of the porous medium burner material comprises the following steps of: preprocessing organic foamed plastic; performing ball-milling on the ceramic powder, the additional binding agent, an additive and a proper amount of water; adding an antifoaming agent into the mixture, performing ball milling to obtain uniform paste, and controlling the viscosity to be 1 to 5Pa.s; soaking the preprocessed organic foamed plastic in the paste; repeating the processes for several times until the required density is achieved; removing the excessive paste to obtain the porous biscuit; naturally drying the porous biscuit at the room temperature; drying the biscuit in a drying box of over 90 DEG C to control the moisture to be less than or equal to 1.0 weight percent; and firing the biscuit in a kiln to obtain the porous medium.

Description

technical field [0001] The invention relates to a burner material, in particular to a porous media burner material and a preparation method thereof. Background technique [0002] Porous media combustion technology is different from regenerator combustion technology, it has high thermal efficiency, high combustion rate, lean fuel (i.e. low calorific value fuel) combustibility, high radiation output (beneficial to directional, uniform, clean and non-contact heating), Uniform combustion temperature, lower CO 2 Emissions, NO reduction x generation, extremely low pollutant emissions and other characteristics. At the same time, the porous medium combustion technology has the advantages of small size, compact structure and stable combustion of the burner, and can be widely used in various application fields such as industrial boilers, heating furnaces, forging furnaces, roasting furnaces, and gas furnaces. [0003] According to the different porous media materials, they can be d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B35/14C04B35/66C04B35/185
Inventor 甘菲芳丁良胜饶文涛梁智林石洪志唐坤
Owner BAOSHAN IRON & STEEL CO LTD
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