阅读说明：本技术 焦化炉门用耐火可塑料 (Refractory plastic material for coking furnace door ) 是由 范志元 王洪新 王莉 于 2019-09-26 设计创作，主要内容包括：本发明涉及焦化炉门用耐火可塑料,包括粘结剂和主料；所述的粘结剂为磷酸二氢铝,所述的主料包括骨料、填料、金属氧化物和烧结助剂；所述的骨料为刚玉,所述的填料为氧化铝为主的无机耐火填料。本发明用不定型的可塑料来代替原来的定型莫来石砖,增加炉门的整体性提高炉门的强度。该耐火可塑料,致密度高,具有优异的耐磨性。施工方便,使用时只需将主料和粘结剂按照比例进行混合搅拌均匀,涂抹在需要修补的炉门部位后压实,室温下固化干燥后即可。(The invention relates to a refractory plastic material for a coking furnace door, which comprises a binder and a main material; the binder is aluminum dihydrogen phosphate, and the main material comprises aggregate, filler, metal oxide and sintering aid; the aggregate is corundum, and the filler is an inorganic refractory filler mainly containing alumina. The invention replaces the original shaped mullite brick with the unshaped plastic material, thereby increasing the integrity of the furnace door and improving the strength of the furnace door. The refractory plastic material has high density and excellent wear resistance. The construction is convenient, and when in use, the main material and the binder are mixed and stirred uniformly according to the proportion, are smeared on the furnace door part to be repaired, are compacted and are cured and dried at room temperature.)

1. The refractory plastic material for the coking furnace door is characterized by comprising a binder and a main material; the binder is aluminum dihydrogen phosphate, and the main material comprises aggregate, filler, metal oxide and sintering aid; the aggregate is corundum, and the filler is an inorganic refractory filler mainly containing alumina.

2. The refractory castable for coke oven doors according to claim 1, wherein said binder is an aqueous aluminum dihydrogen phosphate solution having a concentration of 1.35 to 1.70 g/mL; the dosage of the main material and the binder is 100:15-25 by weight.

3. The refractory castable for coke oven doors according to claim 1, wherein the metal oxide is any one or a mixture of more of magnesium oxide, zinc oxide, copper oxide, zirconium oxide and calcium oxide.

4. The castable refractory for coke oven doors according to claim 1, wherein the sintering aid is any one or more of nickel oxide and sodium aluminate.

5. The refractory plastic for the coke oven door as claimed in claim 1, wherein the aggregate accounts for 42-65% of the mass of the main material, and the filler accounts for 25-35% of the mass of the main material.

6. The castable refractory for coke oven doors according to claim 1, wherein the aggregate has a particle size of 1.35 to 1.70 mm or less.

Technical Field

The invention relates to a refractory plastic material for a coking furnace door, and belongs to the technical field of fire resistance.

Background

The coke oven door is generally built by mullite bricks before being reformed, because the strength of the mullite bricks is not good enough, usually about 60 pressures are applied, and the combination between the bricks is not good, collision is caused in the process of long-term operation, and the coke oven door is also subjected to frequent tests of high temperature of 1350 ℃ and low temperature of 35 ℃ below zero, so that the bricks are easy to fall off and crack, and therefore, the coke oven door is required to be continuously replaced and repaired during production.

Disclosure of Invention

Compared with the prior mullite brick, the refractory plastic material for the coking furnace door has higher strength and better wear resistance. The invention improves the repair level of the boiler, prolongs the guarantee period and improves the operation quality and economic benefit.

The specific technical scheme is as follows:

the refractory plastic material for the coking furnace door comprises a binder and a main material; the binder is aluminum dihydrogen phosphate, and the main material comprises aggregate, filler, metal oxide and sintering aid; the aggregate is corundum, and the filler is an inorganic refractory filler mainly containing alumina.

The binder is aluminum dihydrogen phosphate aqueous solution with the concentration of 1.35-1.70 g/mL; the dosage of the main material and the binder is 100:15-25 by weight.

The metal oxide is any one or mixture of more of magnesium oxide, zinc oxide, copper oxide, zirconium oxide and calcium oxide.

The sintering aid is any one or more of nickel oxide and sodium aluminate.

The aggregate accounts for 42-65% of the mass of the main material, and the filler accounts for 25-35% of the mass of the main material.

The particle size of the aggregate is not more than 3 mm.

Compared with the prior art, the method has the following advantages:

the original shaped mullite brick is replaced by the unshaped plastic material, so that the integrity of the furnace door is improved, and the strength of the furnace door is improved. The refractory plastic material has high density and excellent wear resistance. The construction is convenient, and when in use, the main material and the binder are mixed and stirred uniformly according to the proportion, are smeared on the furnace door part to be repaired, are compacted and are cured and dried at room temperature.

Detailed description of the preferred embodiments

The present invention will be further described with reference to the following examples.