Article 10214

Title of the article

 IMPROVEMENT OF MECHANICAL ROTARY DEFOAMERS CALCULATION METHODS

Authors

Vetoshkin Aleksandr Grigor'evich, Doctor of engineering sciences, professor, sub-department of technosphere safety, Penza State University (40 Krasnaya street, Penza, Russia), ot@pnzgu.ru

Index UDK

66.069.85: 663.14.036

Abstract

Background. The object of research are mechanical rotary defoamers of two types: disk with blades and drum defoamers consisting of two concentric installed perforated drums of cylindrical and conic shape. The subject of research is estimation of construction and operation parameters of mechanical rotary defoamers working with stable two-phase flows of foam structure. The article is aimed at development of methods for calculation of basic kinematic, technological and constructive parameters of mechanical rotary defoamers on the basis of analytical models.
Materials and methods. Estimation of mechanical rotary defoamer parameters was carried out on the basis of hydrodynamic modeling.
Results. The author determined optimal operating conditions for the defoamers under investigation, developed calculation methods determining volumetric capacity of disk and drum defoamers, number of blades on a disk, angular rotational velocity and drum perforation value eliminating the possibility of uncrushed foam cell break through from the defoamer operating area, power consumed by the defoamer. The researcher compared calculation and experiment data of the researched defoamers’ perfomance.
Conclusions. The obtained research results allow to carry out substantiated calculation for selecting and projecting mechanical defoamers.

Key words

disc defoamer with blades, rotary drum defoamer, velocity, performance, design parameters, power consumption.

Download PDF
References

1. Vetoshkin A. G. Osnovy protsessov separatsii peny i razrabotka oborudova-niya dlya mekhanicheskogo penogasheniya v biotekhnologii: avtoref. dis. d-ra nauk [Fundamentals of foam separation and development of mechanical defoaming equipment in biotechnologies: author’s abstract of dissertation to apply for the degree of the doctor of engineering sciences]. Moscow: NIPKIPB, 1993, 40 p.
2. Vetoshkin A. G., Vishnyakov V. V. Protsessy i apparaty khimiko-farmatsevticheskikh i mikrobiologicheskikh proizvodstv: obzor. inform. [Processes and devices of chemical pharmaceutical and microbiological production: information review]. Moscow: VNIISENTI Minmedproma SSSR, 1991, iss. 4, 46 p.
3. Vetoshkin A. G. Tezisy dokladov 6-y Vsesoyuz. konf. po teorii i praktike peremeshivaniya v zhidkikh sredakh [Report theses of VI All-USSR conference on theory and practice of agitation in liquid media]. Leningrad, 1990, pp. 60–61.
4. Vetoshkin A. G. Teoreticheskie osnovy khimicheskoy tekhnologii [Theoretical basis of chemical technology]. 1993, vol. 27, no. 4, pp. 445–448.
5. Vetoshkin A. G. Sozdanie i proizvodstvo pilotnykh ustanovok dlya biotekhnologicheskikh protsessov: tez. dokl. Vsesoyuz. soveshch. [Development and production of pilot machinery for biotechnological processes: report theses of the All-USSR conference]. Pushchino, 1987, pp. 27–28.
6. Vetoshkin A. G. Teoreticheskie osnovy khimicheskoy tekhnologii [Theoretical basis of chemical technology]. 1991, vol. 25, no. 1, pp. 135–139.
7. Furchner B., Mersmann A. Chem. Eng. Technol. 1990, vol. 13, no. 2, pp. 86–96.
8. Vetoshkin A. G. Teoreticheskie osnovy khimicheskoy tekhnologii [Theoretical basis of chemical technology]. 1996, vol. 30, no. 6, pp. 565–569.
9. Uollis G. Odnomernye dvukhfaznye techeniya [Unidimensional two-phase flows]. Moscow: Mir, 1972, 440 p.
10. Vetoshkin A. G. Teoreticheskie osnovy khimicheskoy tekhnologii [Theoretical basis of chemical technology]. 1987, vol. 21, no. 3, pp. 404–407.
11. Vetoshkin A. G. Raschet i konstruirovanie biotekhnicheskoy apparatury [Calculation and construction of biotechnological equipment]. Moscow: MIKhM, 1988, pp. 30–33.
12. Liepe F., Schlaf G., Langhaus G., Winkler H. Chem. Tech. 1978, vol. 30, no. 4, pp. 190–192.

 

Дата создания: 29.08.2014 15:10
Дата обновления: 01.09.2014 10:07