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High-titanium blast furnace slag exterior wall external thermal insulation material and preparation method thereof
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A technology of high-titanium blast furnace slag and external wall insulation, applied in the field of thermal insulation materials, can solve the problems of complex titanium extraction technology, complex components, and inability to use, and achieve comprehensive technical advantages and outstanding economic benefits, and simple and easy production and preparation processes Effect of Row, High Value, and High Scale Utilization
Inactive Publication Date: 2021-06-29
成渝钒钛科技有限公司
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Problems solved by technology
[0003] As a by-product of the blast furnace smelting process, titanium-containing blast furnace slag is also an important secondary resource. The basic performance of low-titanium slag is not much different from that of ordinary slag, and it can be directly used as raw materials for cement, building materials, ceramics, etc. It is more complicated and costly, and it is not suitable for medium-titanium blast furnace slag with low titanium content. At the same time, it is difficult to finely grind medium-titanium slag, and it cannot be directly used as cement raw materials like ordinary slag, which leads to a large amount of medium-titanium blast furnace slag. live
[0004] A large amount of high-titanium blast furnace slag has accumulated in the Panxi area of my country. Due to its complex composition and high impurities, there is no efficient large-scale industrial treatment method at present.
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[0029] A preparation method of high-titanium blast furnace slag external wall external insulation material, comprising the following steps:
[0030] S1. Mixing ingredients: Weigh high-titanium blast furnace slag, silicon-aluminum modified components, foaming agent, flux, crystalnucleus agent, and stabilizer according to the weight ratio, add an appropriate amount of water, and heat and stir through the equipment. Mix all ingredients thoroughly;
[0031] S2. Pressing into billets: After all the ingredients are mixed and reacted, the excess liquid is filtered out, and the precipitated materials are pressed through a hydraulic device to form a billet;
[0032] S3. Low-temperature firing: the pressed billet is introduced into the firing equipment, and the billet is fired according to the set temperature and time, so as to obtain the required material.
[0033] Wherein, the low-temperature firing process in the step S3 is as follows: the raw material is heated from room temperatu...
Embodiment 1
[0036] The raw materials and proportions used in this example are: 1.2 parts of high-titanium blast furnace slag, 1.5 parts of fly ash, 4.8 parts of waste glass, 0.06 part of coalpowder, 0.03 part of calciumcarbonate, 0.02 part of feldspar, 0.03 part of borax, and 0.02 part of lanthanumoxide. parts, 0.02 parts of zirconia, and 0.05 parts of sodiumphosphate. Among them, high-titanium blast furnace slag, fly ash and waste glass are passed through a 100-mesh sieve, and auxiliary substances such as coalpowder, feldspar and calciumcarbonate are all passed through a 200-mesh sieve. After the above raw materials are dried, they are mixed in proportion and pressed into a green body.
[0037] Raise the green body from room temperature to 550°C at a rate of 10°C / min, hold for 35 minutes, continue to rise to 950°C, hold for 60 minutes, and cool to room temperature naturally; annealing process: heat up to 600°C at a rate of 15°C / min from room temperature , keep warm for 350min, and...
Embodiment 2
[0039] The specific implementation process is the same as in Example 1, the difference is that the composition and ratio of the raw materials used are different, specifically, 1.5 parts of high-titanium blast furnace slag, 1.2 parts of silica fume, and 4.2 parts of waste glass;
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Abstract
The invention discloses a high-titaniumblast furnaceslag exterior wall external thermal insulation material and a preparation method thereof. The high-titaniumblast furnaceslag exterior wall external thermal insulation material comprises the following components in percentage by mass: 1-2.5 parts of high-titaniumblast furnaceslag, 2.5-6.4 parts of a silicon-aluminum modified component, 0.06-0.1 part of a foaming agent, 0.05-0.1 part of a fluxing agent, 0.01-0.05 part of a nucleating agent and 0.03-0.08 part of a stabilizer. The method has the beneficial effects that high-efficiency, high-value and high-scale utilization of the high-titanium blast furnace slag can be realized, a new technical approach for absorbing stock of the high-titanium blast furnace slag is provided, and meanwhile, the production and preparation process is simple and feasible, can be applied and popularized on a large scale, and is high in product additional value, wide in market prospect and outstanding in comprehensive technical advantages and economic benefits.
Description
technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a high-titanium blast furnace slag external wall thermal insulation material and a preparation method thereof. Background technique [0002] At present, the wall insulation materials are mainly organic insulation materials, such as polystyrene particles, polystyrene molded boards, polystyrene extruded boards, polyurethane hard foam, and polyurea resin. Various problems exposed in the process cannot be ignored, such as cracking of the insulation board, condensation, flammability, and short service life. Over the past decades, the external wall thermal insulation system of organic materials has met the thermal requirements of wall thermal insulation for a certain period of time, but with the increase of the service life, there have been various degrees of aging, deformation, failure, fire resistance, etc. tough question. In recent years, inorganic thermal ins...
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Application Information
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