A kind of refractory material casting material solidifying type composite highly effective dispersing agent of rush and preparation method thereof
阅读说明：本技术 一种耐火材料浇注料用促凝型复合高效分散剂及其制备方法 (A kind of refractory material casting material solidifying type composite highly effective dispersing agent of rush and preparation method thereof ) 是由 张举 张兰银 于 2019-08-09 设计创作，主要内容包括：本发明公开了一种耐火材料浇注料用促凝型复合高效分散剂,它是以FDN减水剂、六偏磷酸钠、铝酸钠为主要原料制成的,所述的FDN减水剂、六偏磷酸钠、铝酸钠的质量比为60:10～30:30～10。本发明所述的复合高效减水剂适用于铁沟浇注料、高硅灰刚玉自流料、高硅灰铝硅体系浇注料等不定型耐火材料领域。与传统的纯有机分散剂相比,本发明引入无机盐电解质原料六偏磷酸钠和铝酸钠,使得减水剂的减水效率更高,体系更加稳定；同时,可灵活调整铝酸钠的比例调节减水剂的促凝效果,达到减水和低温促凝的复合功能。(The invention discloses a kind of refractory material casting material solidifying type composite highly effective dispersing agents of rush, it be using FDN water-reducing agent, calgon, sodium aluminate as made of primary raw material, the FDN water-reducing agent, calgon, sodium aluminate mass ratio be 60:10~30:30~10.Composite superplasticizer of the present invention is suitable for the amorphous refractories fields such as iron runner castable, high silicon ash corundum self-flowing material, high silicon ash al-si system castable.Compared with traditional pure organic dispersing agent, present invention introduces inorganic salts electrolyte raw material calgon and sodium aluminates, so that the diminishing of water-reducing agent is more efficient, system is more stable；Meanwhile the rush that the proportion adjustment water-reducing agent of sodium aluminate can be adjusted flexibly coagulates effect, reaches diminishing and low temperature promotees solidifying complex function.)
1. a kind of refractory material casting material is with promoting solidifying type composite highly effective dispersing agent, it is characterised in that it be with FDN water-reducing agent, six partially Sodium phosphate, sodium aluminate be primary raw material made of, the FDN water-reducing agent, calgon, sodium aluminate mass ratio be 60: 10~30:30~10.
2. the refractory material casting material according to claim 1 solidifying type composite highly effective dispersing agent of rush, it is characterised in that described FDN water-reducing agent index request it is as follows:
。
3. the refractory material casting material according to claim 1 solidifying type composite highly effective dispersing agent of rush, it is characterised in that described Calgon index request it is as follows:
。
4. the refractory material casting material according to claim 1 solidifying type composite highly effective dispersing agent of rush, it is characterised in that described Sodium aluminate index request it is as follows:
。
5. the refractory material casting material according to claim 1 solidifying type composite highly effective dispersing agent of rush, it is characterised in that it is As made from following methods: using calgon, FDN water-reducing agent, sodium aluminate as primary raw material, after ingredient by mechanical lapping or Batch mixer is uniformly mixed, and composite superplasticizer is made.
6. the refractory material casting material described in claim 1 preparation method for promoting solidifying type composite highly effective dispersing agent, feature exist In steps are as follows:
Step (1), ingredient: FDN water-reducing agent, calgon, sodium aluminate are matched according to mass ratio 60:10~30:30~10 Material obtains mixture M；
Step (2), mixing: mixture M carries out mechanical mixture and composite superplasticizer is made；Wherein, the mechanical mixture is Mechanical lapping or batch mixer are kneaded.
7. the refractory material casting material according to claim 6 preparation method for promoting solidifying type composite highly effective dispersing agent, special Sign is in step (2), if three raw materials are powder shaped raw material, is kneaded to obtain using mechanical lapping or batch mixer uniformly multiple Close high efficiency water reducing agent；At least one granular or sheet-shaped material if it exists carries out mechanical lapping using grinder, is made uniform multiple Close high efficiency water reducing agent.
8. the refractory material casting material according to claim 6 preparation method for promoting solidifying type composite highly effective dispersing agent, special Sign is mechanical lapping using ball mill, and the revolving speed of ball mill is 30~100 revs/min, and the diameter of mill ball is 10~40mm, The weight ratio of mill ball and mixture M are 2~10:1.
9. the refractory material casting material according to claim 6 preparation method for promoting solidifying type composite highly effective dispersing agent, special Sign is that the revolving speed of the batch mixer is 20~200 revs/min, mixing time 10~100 minutes.
Technical field
The invention belongs to inorganic chemistry and high-molecular organic material field, are related to a kind of solidifying type of refractory material casting material rush Composite highly effective dispersing agent and preparation method thereof, which, which coagulates type composite dispersing agent, has low temperature (1~10 DEG C) blood coagulation enhancing effect, can be with Refractory material casting material field applied to siliceous grey system.
Background technique
Dispersing agent is also known as water-reducing agent, is a kind of essential additive of refractory material casting material, to the stream of castable The effect for moving performance, workability, the condensation performance of pure calcium aluminate cement and high-temperature behavior is most important.
High silicon ash system castable is fire resisting material field commonly a kind of castable, including iron runner castable, silicon ash contain Measure high al-si system castable of high corundum self-flowing material, silicon ash content etc..Under normal conditions, high silicon ash castable is difficult to disperse, Mainly following reason: silicon ash has very thin granularity, shows very high-ratio surface energy, easily reunites；Meanwhile it is high Silicon ash system castable contains a certain amount of alumina powder, further increases the dispersion difficulty of castable.
Currently, high efficiency water reducing agent used in high silicon ash system castable is mainly German BASF (BASF) product, with Castment-FS20 is representative.Although high efficiency water reducing agent based on high polymer shows higher diminishing efficiency, but It is when castable scene low-temperature construction, castable setting time is very long, its setting time is super in certain castable schemes 50 hours are spent, the duration progress of construction site is seriously affected.
Sodium tripolyphosphate and six inclined sodium sulphate are also the conventional water reducing agents of high silicon ash system castable, have certain diminishing Efficiency, but castable is required to need higher amount of water, lead to the damage of the high-temperature behavior in later period.In addition, this kind of water-reducing agent exists When live low-temperature construction, there is also the problems that the setting time of castable is too long.
Summary of the invention
Aiming at the problem that high silicon ash system castable cryogenic temperature condensation overlong time, the present invention is with calgon, FDN diminishing Agent and sodium aluminate be raw material prepare it is a kind of with low temperature it is accelerating can dispersant with high efficiency, the dispersing agent raw material sources extensively, At low cost, with strong applicability, it is obvious that water-reducing rate high and low temperature promotees solidifying effect.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of refractory material casting material with promoting solidifying type composite highly effective dispersing agent, it be with FDN water-reducing agent, calgon, Sodium aluminate be primary raw material made of, the FDN water-reducing agent, calgon, sodium aluminate mass ratio be 60:10~30: 30~10.
The FDN water-reducing agent is commercially available commercialization FDN water-reducing agent, and index request is as shown in table 1:
The index request of table 1.FDN water-reducing agent
FDN water-reducing agent
Index
Appearance
Powder shaped is granular
Diminishing efficiency (%)
≥18
Bleeding rate (%)
≤90
Air content (%)
≤2
The index request of the calgon is as shown in table 2:
The index request of 2. calgon of table
Calgon
Index
Appearance
Powder shaped or granular or sheet
Total phosphate is (with P2O5Meter) content (%)
≥68
Water insoluble matter content (%)
≤0.04
PH value range (10g/L)
5.5-7.3
The index request of the sodium aluminate is as shown in table 3:
The index request of 3. sodium aluminate of table
Sodium aluminate
Index
Appearance
Powder shaped is granular
NaAlO2Content (%)
≥56
Al2O3Content (%)
≥27
Water insoluble matter content (%)
≤0.1
It is a further object to provide the refractory material casting material solidifying type composite highly effective dispersing agents of rush Preparation method, this method comprises: passing through mechanical grinding after ingredient using calgon, FDN water-reducing agent, sodium aluminate as primary raw material Mill or batch mixer are uniformly mixed, and favorable dispersibility, the accelerating good composite superplasticizer of energy is made.
Specific step is as follows:
Step (1), ingredient: FDN water-reducing agent, calgon, sodium aluminate according to mass ratio 60:10~30:30~10 into Row ingredient obtains mixture M；
Step (2), mixing: mixture M carries out mechanical mixture and composite superplasticizer is made；Wherein, the machinery is mixed It is combined into mechanical lapping or batch mixer is kneaded.
Mechanical lapping uses ball mill, and the revolving speed of ball mill is 30~100 revs/min, and the diameter of mill ball is 10~ The weight ratio of 40mm, mill ball and mixture M are 2~10:1.
The revolving speed of the batch mixer is 20~200 revs/min, mixing time 10~100 minutes.
In step (2), if three raw materials are powder shaped raw material, it is kneaded to obtain using mechanical lapping or batch mixer uniform Composite superplasticizer；At least one granular or sheet-shaped material if it exists carries out mechanical lapping using grinder, is made uniform Composite superplasticizer.
Composite superplasticizer of the present invention is suitable for iron runner castable, high silicon ash corundum self-flowing material, high silicon ash aluminium The amorphous refractories fields such as silicon system castable.The composite superplasticizer is in iron runner castable, high silicon ash corundum Additional amount in self-flowing material, high silicon ash al-si system castable is 0.1~0.5%.
Beneficial effects of the present invention:
Calgon belongs to electrolytes dispersing agent, is capable of forming bielectron structure after dissolving in water, with α-Al2O3Micro mist Surface electrical behavior repel each other, so as to activity or calcining α-Al2O3Micro mist plays good peptizaiton；FDN water-reducing agent is molten Solution not only can change the potential balance of solution and can be adsorbed on the table of silica, alumina powder and cement after entering water Face, to play the peptizaiton to silica, aluminium oxide and cement granules；Calgon and FND water-reducing agent is compound makes With the amount of water of silicon oxide-containing ash castable can be substantially reduced.Sodium aluminate in the castable containing pure calcium aluminate cement, The reaction of cement minerals can be promoted to form a large amount of gels, and have a certain amount of platelike crystal calcium hydroxide and column crystal calcium Aluminite is distributed wherein, even under very low construction temperature, can also be reached and be promoted solidifying effect well.Three kinds of ingredients make jointly Used time can also play the synergistic effect of potential balance and steric hindrance, reach higher dispersion and the solidifying effect of rush.
Compared with traditional pure organic dispersing agent, present invention introduces inorganic salts electrolyte raw material calgon and aluminic acids Sodium, so that the diminishing of water-reducing agent is more efficient, system is more stable；Meanwhile the proportion adjustment diminishing of sodium aluminate can be adjusted flexibly The rush of agent coagulates effect, reaches diminishing and low temperature promotees solidifying complex function.
Detailed description of the invention
Fig. 1 is the preparation flow figure that refractory material casting material promotees solidifying type composite highly effective dispersing agent.
Specific embodiment
Technical solution of the present invention is described further combined with specific embodiments below.
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