Sealing hook embedding material for coke oven gaps and manufacturing method thereof

Abstract

The invention discloses a sealing hook embedding material for coke oven gaps. The sealing hook embedding material comprises the following effective components: nano silica sol serving as a continuousphase, and carbonized silicon cellulose powder, silicon dioxide powder, aluminum oxide, clinker refractory mortar and pitch coke powder or petroleum coke powder used as filler, wherein the mass part ratio of the continuous phase to the filler is 1: (1.85-3.0). In addition, the invention also discloses a sealing hook embedding material for coke oven gaps, the sealing hook embedding material is composed of nano silica sol and filler, the filler is composed of carbonized silicon cellulose powder, silicon dioxide powder, aluminum oxide, clinker refractory mortar and pitch coke powder or petroleumcoke powder, and the nano silica sol accounts for 25-35% of the mass of the sealing hook embedding material. In addition, the invention further discloses a manufacturing method of the sealing hook embedding material for coke oven gaps. The sealing hook embedding material disclosed by the invention has the characteristics of self-sintering, self-expansion, high temperature resistance and multiple pores, and can achieve high bonding strength with a cast steel component after being sintered.

Description

technical field [0001] The invention relates to a material and a manufacturing method thereof, in particular to a sealing hook insert for the gap between a coke oven door frame and a protective plate and a manufacturing method thereof. Background technique [0002] During the coking process, the coal is heated in the carbonization chamber in isolation from the air, and undergoes drying and dehydration, thermal cracking, semi-coking and coking. The whole carbonization process is accompanied by the generation of raw gas, especially in the early and middle stages of carbonization. The amount of raw gas is relatively large. [0003] In the process of coking and carbonization, if the coking chamber area of ​​the coke oven body is not tight, it will cause waste gas to overflow, that is, the so-called coke oven body smoke in the daily production process, which will not only cause the loss of chemical products, but also seriously affect the environment of the coke oven ,create pollu...

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Problems solved by technology

[0007] However, usually, the prior art directly adopts silica clay to add water glass and water to make a slurry, and smears it on this part, but at high temperature, the material hanging time can only reach 2-3 months; Adding 30% concentrate powder, because it is still difficult to form a sintered block material and high bond strength combined with cast steel components, therefore, the hang-up time of this formula can only reach 5-6 months

[0008] Although there are some high-temperature-resistant sealing materials on the market, they cannot be used as sealing hooks for coke ovens because they are solid block fiber materials, or they cannot be used in large-scale industrial production due to their high cost. Or because the material is an organic solvent material, the solvent will volatilize or carbonize at high temperature, so it cannot be used as a sealing hook for coke ovens

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