3results about How to "Small bubble size" patented technology

The invention discloses a granulation method and system for improving the bulk density of synthesized high-purity quartz sand, and the method comprises the following steps: carrying out spraying treatment on silica sol to form silica sol liquid drops, and meanwhile, carrying out microwave drying on the silica sol liquid drops to uniformly heat the inside and outside of the silica sol liquid drops to obtain preliminarily dried gel particles; and putting the gel particles into drying equipment for drying treatment to obtain a granulated product. The hollow rate of the granulated product can be greatly reduced, so that the stacking density of the synthesized high-purity quartz sand product is improved, a solid particle product with few defects is prepared, the number of bubbles in a downstream product is effectively reduced, and meanwhile, the bubble size in the downstream product can be effectively reduced.

This utility model discloses a high-efficiency dust removal and suppression device for underground coal mine roadways, comprising a housing with a water tank inside. An atomizing device is located on the upper surface of the housing, and a water inlet is located at the bottom of the atomizing device. A suction pipe, penetrating the upper surface of the housing and extending into the water tank, is connected to the water inlet. An air inlet is located on the front surface of the housing. This utility model uses a diversion pipe to evenly divide the dust-laden airflow into multiple streams, which, in conjunction with a bubble screen at the end, further break up the bubbles, reducing the size of the bubbles when the air flows into the water. This effectively increases the probability of the water capturing dust and reduces the likelihood of dust returning to the air with large bubbles, improving air quality in the roadway. Simultaneously, an airflow buffer plate smoothly discharges residual airflow into the upper part of the water tank, effectively preventing water splashing and disturbance of sediment.

The invention relates to the technical field of thermal insulation material preparation, and discloses a preparation method of an acrylate copolymerized thermal insulation material, which comprises the following steps: S1, raw material preparation; s2, prepolymerization is carried out; s3, magnetic treatment; s4, carrying out polymerization; s5, cooling; s6, foaming; s7, carrying out post-treatment; by introducing magnetic field treatment, ultrasonic foaming and a bubble size regulating agent, the internal structure of the material is greatly improved, and bubbles are distributed more uniformly, so that the density and the overall strength of the material are improved, and the long-time efficient thermal insulation performance is ensured; through ultrasonic foaming and use of a bubble size regulating agent, the size of bubbles is reduced, the bubbles are distributed more uniformly, heat conduction paths are reduced due to smaller bubbles, heat preservation performance and energy utilization efficiency are improved due to low heat conductivity, energy consumption is reduced, and the method has very important significance in application in the fields of buildings, cold chains and the like and has good application prospects. Energy loss can be effectively reduced, and the overall efficiency of a heat preservation system is improved.