A kind of elevator and preparation method thereof
A technology for elevators and fireproof bricks, which is applied to elevators, manufacturing tools, transportation and packaging in buildings, etc., can solve the problems of complicated preparation methods, complex preparation methods and high preparation costs of fireproof elevators, and achieves low cost and simple preparation methods. , to solve the effect of uneven expansion
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preparation example Construction
[0036] The preparation method of described fireproof brick is:
[0037] (1) preparing calcium silicate hydrate;
[0038] (2) obtain mixed material after described calcium silicate hydrate, glass fiber and water are mixed uniformly;
[0039] Among them, the mixing temperature is 20-90°C. Since glass fiber and calcium silicate hydrate are fine fiber substances, their viscosity in water is relatively high. Raising the mixing temperature can improve the uniformity of the mixing. Preferably, the mixing temperature It is 60-90°C.
[0040] (3) Separating the solid and liquid from the mixed material, pressing it into a plate, and drying to obtain the finished fireproof brick.
[0041] Wherein, the pressure during pressing is 20-60MPa, and the pressure maintenance time is 5-120min.
[0042] Preferably, the preparation method of described calcium silicate hydrate is:
[0043] (1) mixing red mud, coal ash, silicon dioxide, and water to obtain a mixed slurry;
[0044] Wherein, the co...
Embodiment 1
[0051] The present invention provides an elevator, including a car; the car includes a car wall, and the car wall includes an inner wall plate and an outer wall plate; a hollow structure is formed between the inner wall plate and the outer wall plate, and the hollow structure is equipped with There are first fireproof bricks and second fireproof bricks; the first fireproof bricks and second fireproof bricks are bonded to the inner wall panels and outer wall panels through refractory sealant; by adding lightweight refractory bricks in the car wall space, the The elevator has a fireproof function without increasing the weight of the elevator.
[0052] Preferably, the thermal conductivity of the first fireproof brick is greater than that of the second fireproof brick; the first fireproof brick is close to the inner wall, and the second fireproof brick is close to the outer wall. When a fire breaks out, the outer wall of the car and the inner wall of the car are heated differently...
Embodiment 2
[0057] Wherein, calcium silicate hydrate is made by following method:
[0058] (1) Mix red mud, coal ash, silica, and water to obtain a mixed slurry; wherein, the mass ratio of red mud to coal ash is 1:1; the total mass of coal ash and red mud to the mass of silica The ratio is 1:1, and the liquid-solid ratio of the mixed slurry is 30:1mL / g.
[0059] (2) Put the mixed slurry into the reaction kettle, carry out hydrothermal reaction, after the reaction, filter, wash and dry to obtain calcium silicate hydrate. Wherein, the hydrothermal reaction temperature is 300° C., and the reaction time is 1 h.
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