Порівняння ефективності роботи тепломасообмінного обладнання з дискретно-імпульсним введенням енергії при культивуванні кормових дріжджів

Автор(и)

  • Б. Х. Драганов
  • О. М. Ободович
  • Г. К. Іваницький
  • В. В. Сидоренко

Анотація

UDC 663.14. 033, 663.143.2

Comparing the efficiency of heat and mass transfer equipment to discrete - pulse energy with the introduction of the cultivation of fodder yeast

B.Draganov ,O. Obodovich, G. Ivanitskiy, V. Sidorenko

 

The method of discrete - pulse input of energy has established itself as one of the most effective methods of input energy in heterogeneous systems, the main phase which is liquid phase.

One aspect of the method of this method is the intensification of the process of mass transfer in the system of gas - liquid.

The purpose of research - a comparison of the efficiency of the absorber and rotor - pulsating device technology fodder yeast.

For the production of fodder yeast fermentation plant was established using the method of discrete - input pulse energy at the rotor - pulsating machine. In the working area of the apparatus culture fluid is exposed to high-pressure fluctuations, strong turbulence, breaking the continuity of flow shear stress, etc., leading to intensify the process of dissolving oxygen and dispersible air bubbles to micron size, thereby sharply the contact area of phases.

With devices that implement the method of discrete - pulse input of energy is the closest aerator - dispersant that consists of three coaxial perforated discs (two fixed and one movable). Central drive set in motion the motor.

This problem was solved in the dispersant liquid media saturation of carbon dioxide (carbonation) in technology for carbonated drinks

We concluded that the use of dispersants (absorber) rotary - disk type allows aeruvannya culture fermentation liquids during installation culturing yeast.

Hardware - technological scheme fermentation installation using absorber includes a hopper, equipped with a cooling jacket. Inside the bunker located inside a cylindrical glass bottom of the hopper through the pipeline connected to the suction pipe centrifugal pump. Pressure pipe connected to the inlet pipe absorber housing. Nipple on the opposite side of the absorber is connected to the pipeline through which gas-liquid mixture back into the hopper. Sam absorber is a cylindrical chamber in the bottom of which is located Pulse unit, which is a three disc diameter of 210 mm and a thickness of 5 mm, two fixed and movable rotor stator. Each disc has three rows of through holes with a diameter of 3 mm along the conventional concentric circles.

The air for aeration enters the gas chamber below the pulsating hub. The rotor rotating motor. Speed is regulated by changing rotor drive shaft rotational speed. Air is fed and absorber of the compressor. Installation is equipped with control - measuring equipment.

 

Conclusions

• relatively fermentation plants work with discrete - input pulse energy absorber and implemented in rotor - pulsating apparatus in the cultivation of fodder yeast in alcohol after Bardi;

• determined that the installation of the RPA oxygen dissolves 20 % faster by visiting than in the installation of the absorber;

• established that the rate of mass transfer of oxygen in the installation of the RPA in the air flow 10 g / l h is 2.1 g / l hour, while both in the installation of the absorber 1,95h / l hour, but a Hard mode processing RPA to install with an increasing number of Merv cells;

• established that power inputs for aeration culture liquid cultivated fodder yeast to install absorbers with 25% higher than in the installation of the RPA.

Посилання

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Опубліковано

2017-02-16

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