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Magnesium-calcium-zirconium slag non-sticking spraying coating

A magnesium-calcium-zirconium and spray coating technology, applied in the direction of coating, can solve the problems of environmental pollution, high energy consumption, etc., and achieve the effects of reducing costs, good fluidity, and reducing operating time

Inactive Publication Date: 2008-02-13
郑州荣达工矿集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, the object of the present invention is to provide a magnesia-calcium-zirconium non-stick slag spray coating made of non-burning dolomite raw ore as the main raw material with zircon sand and other related refractory materials, which can effectively solve the problem of energy loss in the use of the coating. high consumption and environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: The composition is 68% of dolomite, 10% of zircon sand, 5% of corundum powder, 3% of silicon powder, 2% of bentonite, 8% of soft clay, 3% of sodium hexametaphosphate, and 1% of sodium tripolyphosphate. %, 0.3% calcium lignosulfonate, 0.7% boric acid, mix them into a mixture, put it into a spraying machine, add water that is 30% of the weight of the mixture, and then spray, the adhesion rate> 90%, spray on a 40T converter on the implementation.

Embodiment 2

[0021] Embodiment 2: the composition is 65% of dolomite, 6% of zircon sand, 8% of corundum powder, 3% of silicon micropowder, 3% of bentonite, 10% of soft clay, 2% of sodium hexametaphosphate, and 2% of sodium tripolyphosphate. %, 0.4% calcium lignosulfonate, 0.6% boric acid, mix into a mixture, put it into a spraying machine, add 33% water of the weight of the mixture, and then spray, the adhesion rate is greater than 95%, spray on 40T Implemented on the converter.

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Abstract

The invention relates to magnesia-calcium-zirconium non-stick slag spray paint, which effectively solves the problems of high energy consumption and environmental pollution during the use of the paint. The invention is calculated by weight percentage: dolomite 20-80%, zircon sand 2 -10%, corundum powder 5-15%, silicon micropowder 2-10%, bentonite 2-5%, soft clay 5-15%, phosphate 2-6%, calcium lignosulfonate 0.1-1%, boric acid 0.2-2%, the total amount is 100%. The test in the steel-making converter shows that the spray coating of the present invention has good fluidity, can complete the gunning operation within three minutes, can effectively isolate the slag and is easy to clean up the slag, reducing the work Time, the main raw material used in the present invention is non-burning dolomite, which is not hydrated, has a wide range of raw material sources, is convenient to obtain, and because it does not burn raw materials, it saves a lot of energy, which is beneficial to reduce costs and save energy consumption.

Description

1. Technical field [0001] The invention relates to an unshaped refractory material, in particular to a magnesia-calcium-zirconium slag-free spray coating, which is mainly used for wet gunning of a steelmaking converter. 2. Background technology [0002] Spray coating belongs to unshaped refractory material, which is a kind of refractory mixture used for gunning or spraying by jet machine, and has been widely used in the field of iron and steel metallurgy. At present, the furnace cap, trunnion, charging area, tapping hole and other parts of the steelmaking converter are mostly maintained and repaired by spraying technology. The spray coatings used include magnesium and calcium-magnesium, all of which have achieved good results. For example: the "converter tapping hole gunning material" described in CN0311564.5 is exactly a kind of magnesia spray coating used for the maintenance and repair of the tapping hole and charging area. The main raw material it adopts is Sintered mag...

Claims

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Application Information

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IPC IPC(8): C09D1/00
Inventor 雷发祥
Owner 郑州荣达工矿集团有限公司
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