Stirring device

Abstract

The invention discloses a stirring device, and relates to the field of expandable polystyrene preparation. The stirring device comprises a reaction box, an ultrasonic generator and a screen box. The ultrasonic generator is located under the bottom of the reaction box, and the screen box is located in the reaction box. The reaction box comprises a shell and a reaction chamber installed on the shell; and the shell is provided with a water inlet pipe and a water outlet pipe. By the adoption of the stirring device, cured expandable polystyrene particles can not be mixed with fire retardant slurry easily through ultrasonic stirring; and the content of the fire retardant slurry in the expandable polystyrene particles is increased, and fireproofness of the expandable polystyrene particles is improved. Besides, when ultrasonic waves work, noise is low compared with mechanical stirring. People do not need to worry that dirt is accumulated on blades and a stirring shaft, and work environments are improved.

Description

technical field [0001] The invention belongs to the field of preparation of expandable polystyrene, in particular to a stirring device. Background technique [0002] Expandable polystyrene (EPS) can be made into foam products of different densities and shapes through pre-expanding, curing, molding, drying and cutting, and can also produce foam boards of various thicknesses; it is widely used in construction, Insulation, packaging, refrigeration, daily necessities, industrial casting and other fields; it can also be used in exhibition venues, commodity cabinets, advertising signs and toy manufacturing. After heated and foamed, expandable polystyrene contains 3 to 6 million independent airtight cells per cubic meter, and the contained air volume is more than 98%, and the density can be as low as 10 to 30kg / m3, so EPS is the current The lightest packaging material, when the load is high, this material will be bent, and when it is shaken or falls to the ground, it can play the ...

AI Technical Summary

Problems solved by technology

[0003] In actual use, the fireproof effect of expandable polystyrene is not ideal, so manufacturers will add a little flame retardant to expandable polystyrene to improve its fireproof effect; , most manufacturers mix the expandable polystyrene and the flame retardant slurry directly through mechanical stirring, but the mixing effect is poor, and the content of the flame retardant slurry on the expandable polystyrene is small, lead to poor fire resistance

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