Novel full-static airflow emulsification process

Abstract

The invention relates to a novel full-static airflow emulsification process which comprises the following steps: firstly, introducing hot water into a heating coil to preheat and preheat a pneumatic pre-emulsion tank, and then pumping an oil phase solution into the pneumatic pre-emulsion tank from an oil phase feeding pipe; then feeding compressed air into the pneumatic pre-emulsion tank, and pumping the water-phase solution into the pneumatic pre-emulsion tank from the water-phase feeding pipe; when the water-phase solution is added, adjusting the opening degree of an electric adjusting valve of compressed air, increasing the air flow for emulsification, continuously dispersing bubbles sprayed out of small holes of the air flow pipe through the four layers of screens and fully distributing in the whole tank body, wherein under the action of the dispersed small bubbles, water-phase tiny liquid drops continuously enter the oil-phase solution to form a water-in-oil coarse emulsion matrix. According to the invention, potential safety hazards caused by a mechanical rotating part are thoroughly eliminated from the source, and the safety of the production process is greatly improved.

Description

technical field [0001] The invention relates to an equipment process method for emulsion explosives, in particular to a novel full-static air flow emulsification process technology for emulsion explosives. Background technique [0002] In the production process of emulsion explosives, it is necessary to mix and shear the aqueous phase solution as the oxidant and the oil phase solution as the reducing agent in a certain proportion to form the latex matrix. The oil phase is used as the continuous phase, and the water phase is used as the dispersed phase. Under mechanical stirring, dispersing and shearing, with the help of emulsifiers, the water phase solution droplets are evenly dispersed in the oil phase continuous medium to form a water-in-oil emulsion. body. [0003] At present, the commonly used milking process at home and abroad is a mechanical rotary shearing emulsification process, and its emulsifier is mainly a rotor-stator shearing type. For the emulsification proce...

AI Technical Summary

Problems solved by technology

For the emulsification process to achieve the purpose of fine milk at one time, the shear line speed is about 12~15m / s, the radial gap between the rotor and the stator is 3~5mm, the end face gap is about 4~8mm, and the rotation speed is mostly 900~3000 r / s Min, the material flows through the strong mechanical shearing action between the stator and the rotor. If the manufacturing precision and installation precision of the mechanical equipment cannot meet the requirements, it is easy to vibrate too much, and even the stator and rotor scrape to cause heat accumulation and cause danger.

For the emulsification method of mechanical coarse milk and static fine milk, the motor speed of the coarse milk tank is controlled at about 600 r / min, and it is also mechanically sheared and stirred for pre-emulsion, which has potential safety hazards

[0004] There is another kind of full static emulsification process technology for emulsion explosives in China. By introducing a certain ratio of aqueous phase solution into multi-stage end-to-end static mixers, orifice plates or Venturi tubes in batches, it is mixed and emulsified with the oil phase solution in it. The material is pumped into the material at high pressure through the oil phase and water phase pumps. It belongs to the passive shear emulsification process. It has the disadvantages of closed high pressure, emulsification quality has a great dependence on the characteristics of raw materials, and the emulsification quality is uncontrollable.

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