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A kind of high strength and high temperature resistant basalt castable and its preparation method

A technology of basalt and high temperature resistance, applied in the field of basalt castables, can solve the problems of limited high temperature resistance strength, high cost and low cost performance, and achieve the effects of increased compressive strength, strong corrosion resistance and high compressive strength.

Active Publication Date: 2017-08-04
鹤壁中盛冶金工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional castables have limited high-temperature strength and relatively high cost. For example, CN101580401A discloses a high-strength wear-resistant castable, which is prepared with sintered mullite as aggregate. Castables with corundum as aggregate also have the problem of not being cost-effective enough

Method used

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  • A kind of high strength and high temperature resistant basalt castable and its preparation method
  • A kind of high strength and high temperature resistant basalt castable and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-strength and high-temperature-resistant basalt castable, its composition and the mass percentage of the components are: 250kg of 20-mesh basalt, 200kg of 100-mesh basalt, 120kg of 300-mesh basalt, 45kg of 200-mesh silica, 300-mesh silica 50kg, 500 mesh silica 40kg, aluminum oxide 80kg, sodium fluorosilicate 30kg, carboxymethyl cellulose 10kg, potassium aluminum silicate 10kg.

[0028] Such as figure 1 As shown, the preparation method of the above-mentioned high-strength and high-temperature-resistant basalt castable is as follows:

[0029] The first step: put the basalt aggregate from the conveyor belt into the jaw crusher at a speed of 10-50 tons / hour for primary crushing, and the primary crushed basalt aggregate keeps 10-50 tons / hour to enter the impact Crusher for secondary crushing.

[0030] Step 2: The basalt aggregate after the secondary crushing is vibrated and screened through a precision vibrating screen, and the small pieces of material enter the indu...

Embodiment 2

[0034] A high-strength and high-temperature-resistant basalt castable, its components are composed and the mass percentage of the components is: basalt: 60 mesh 350kg, 200 mesh 150kg, 500 mesh 120kg, 250 mesh silica 60kg, 400 mesh silica 60kg , 700-mesh silicon dioxide 30kg, 450-mesh corundum powder 100kg, copper oxide 50kg, triethanolamine 15kg, bentonite 30kg.

Embodiment 3

[0036] A high-strength and high-temperature-resistant basalt castable, its components are composed and the mass percentage of the components is: basalt: 80 mesh 300kg, 300 mesh 150kg, 700 mesh 150kg, 250 mesh silica 60kg, 325 mesh silica 50kg , 700-mesh silicon dioxide 50kg, 450-mesh corundum powder 100kg, copper oxide 50kg, triethanolamine 15kg, bentonite 30kg.

[0037] The performance test index of the finished product (test environment: temperature: 25°C, humidity: 70%) is shown in Table 1:

[0038] Table 1

[0039]

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Abstract

The invention provides a high-strength, high-temperature-resistant and high-compressive-strength basalt castable. The basalt castable is made by taking basalt as aggregate and adding a high-quality high-temperature-resistant agent, a coagulating agent, a stabilizing agent and a sintering agent. A preparation method of the basalt castable comprises the following steps: performing three-stage smashing on the basalt and silicon dioxide; screening and classifying according to granularity respectively; adding the high-temperature-resistant agent, the coagulating agent, the stabilizing agent and the sintering agent in a certain mixture ratio; putting the mixture into a magnetic separator to screen and remove iron; putting the mixture into a vertical stirrer to stir for mixing; packaging to obtain a finished product. The basalt castable has more excellent high temperature resistance, higher compressive strength and high corrosion resistance, and can be recycled after reaching normal service life. The product can be directly put into the ecological environment after being discarded without causing any damage, and is a true environment-friendly material.

Description

technical field [0001] The invention relates to a high-strength and high-temperature resistant castable, in particular to a basalt castable with high strength, high temperature resistance and high compressive strength. Background technique [0002] Castable is a granular and powdery material made of refractory materials and a certain amount of binder. It has high fluidity and is suitable for monolithic refractory materials formed by casting. Compared with other unshaped refractories, the binder and moisture content are higher, and the fluidity is better, so the unshaped refractories have a wider range of applications, and the materials and binders used can be selected according to the conditions of use. It can be directly poured into a lining body, and can also be used as a prefabricated block by pouring or shaking. [0003] Traditional castables have limited high-temperature strength and relatively high cost. For example, CN101580401A discloses a high-strength wear-resist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 郭华郭寒冰
Owner 鹤壁中盛冶金工程有限公司
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