Method for preparing special refractory castable for kilns

A refractory castable and kiln technology, applied in the field of refractory materials, can solve problems such as poor thermal shock resistance, achieve the effects of improving thermal shock resistance, improving thermal shock resistance, and suppressing subsidence

Inactive Publication Date: 2018-06-15
CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a preparation method of special ref

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] Put the grinding aid and steel slag in a vibrating mill at a mass ratio of 1:100 to mix and grind, pass through a 300-mesh sieve to obtain activated steel slag; add polyvinyl alcohol and water at a mass ratio of 1:100 to the No. 1 beaker and use After stirring and mixing the glass rod for 30 minutes, let it stand and swell for 4 hours, then move the No. 1 beaker into the digital display speed constant temperature magnetic stirrer, at a temperature of 100 ℃, rotating speed 500r / min, heating, stirring and dissolving for 50 minutes to obtain polyvinyl alcohol Liquid; add chitosan and water according to the mass ratio of 1:100 into the No. 2 beaker, stir and mix with a glass rod for 30 minutes, then stand for 4 hours to swell, and then move the No. 2 beaker into the digital display speed constant temperature magnetic stirrer, at the temperature Under the condition of 100℃ and 500r / min, heating and stirring to dissolve for 50min, the chitosan liquid is obtain...

Example Embodiment

[0024] Example 2

[0025] Put the grinding aid and steel slag in a vibrating mill at a mass ratio of 1:100 to mix and grind, pass through a 300-mesh sieve to obtain activated steel slag; add polyvinyl alcohol and water at a mass ratio of 1:100 to the No. 1 beaker and use After stirring and mixing the glass rod for 30 minutes, let it stand and swell for 4 hours, then move the No. 1 beaker into the digital display speed constant temperature magnetic stirrer, at a temperature of 100 ℃, rotating speed 500r / min, heating, stirring and dissolving for 50 minutes to obtain polyvinyl alcohol Liquid; add chitosan and water according to the mass ratio of 1:100 into the No. 2 beaker, stir and mix with a glass rod for 30 minutes, then stand for 4 hours to swell, and then move the No. 2 beaker into the digital display speed constant temperature magnetic stirrer, at the temperature Under the condition of 100℃ and 500r / min, heating and stirring to dissolve for 50min, the chitosan liquid is obtain...

Example Embodiment

[0026] Example 3

[0027] Put the grinding aid and steel slag in a vibrating mill at a mass ratio of 1:100 to mix and grind, pass through a 300-mesh sieve to obtain activated steel slag; add polyvinyl alcohol and water at a mass ratio of 1:100 to the No. 1 beaker and use After stirring and mixing the glass rod for 30 minutes, let it stand and swell for 4 hours, then move the No. 1 beaker into the digital display speed constant temperature magnetic stirrer, at a temperature of 100 ℃, rotating speed 500r / min, heating, stirring and dissolving for 50 minutes to obtain polyvinyl alcohol Liquid; add chitosan and water according to the mass ratio of 1:100 into the No. 2 beaker, stir and mix with a glass rod for 30 minutes, then stand for 4 hours to swell, and then move the No. 2 beaker into the digital display speed constant temperature magnetic stirrer, at the temperature Under the condition of 100°C and rotating speed of 500r / min, heating and stirring to dissolve for 50min, the chitos...

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PUM

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Abstract

The invention discloses a method for preparing a special refractory castable for kilns, and belongs to the technical field of refractory materials. The method comprises the following steps: placing analuminum nitrate solution in a three-necked flask, placing the three-necked flask in a digital display speed measuring constant-temperature magnetic stirrer, dropwise adding a urea solution into thethree-necked flask by using a dropping funnel, heating and stirring the obtained solution after the dropwise addition of the urea solution is finished, adding a Carbomer solution into the three-neckedflask, and heating and stirring the obtained solution to obtain a mixed slurry; placing activated steel slag, cement, a polyvinyl alcohol solution, a chitosan solution, phospholipids, a water reducer, a silane coupling agent and water in mixer, and performing stirring and mixing to obtain a mixed paste; and adding the mixed slurry into the mixer, and performing stirring and mixing to obtain the special refractory castable for kilns. The special refractory castable for kilns has excellent thermal shock resistance.

Description

technical field [0001] The invention discloses a method for preparing a special refractory castable for a kiln, belonging to the technical field of refractory materials. Background technique [0002] Refractories refer to a class of inorganic non-metallic materials with a refractoriness not lower than 1580°C. Because of their stable physical and chemical properties under high temperature conditions, they are widely used in various fields of industrial production, such as steel, non-ferrous metals, cement, petrochemical, Military industry, etc., are important basic support materials to ensure the normal operation of the industry and the development of technological innovation. There are many ways to classify refractory materials. According to the supply form, they can be divided into shaped refractory materials and unshaped refractory materials. Refractory castable is a typical unshaped refractory material, which refers to the mixture composed of reasonably graded aggregate ...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/626C04B35/634C04B35/63
CPCC04B35/62204C04B35/626C04B35/6316C04B35/63404C04B35/66C04B2235/3217
Inventor 吴展牙殷连海黄浩
Owner CHANGZHOU DINGRI ENVIRONMENTAL PROTECTION TECH
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