RU2408665C1 - Method for deep purification of wax - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: method involves boiling and filtration. Boiling is carried out at 100°C with simultaneous exposure to ultrasound vibrations which are directed from bottom to top at frequencies which give rise to cavitation effect which destroys all pathogenic microorganisms and creates a flotation concentration mode which carries all colloidal suspensions to the surface in form of foam which is continuously removed.

EFFECT: invention reduces expenses on purifying wax from mechanical impurities, colloidal suspensions, and enables complete disinfection of wax in a single step at low temperature while preserving the initial structure of the wax.

Description

The invention relates to agricultural production, in particular to methods for cleaning wax using thermal radiation.

A known method of cleaning wax in sumps on the surface of hot water (USSR author's certificate No. 398233, A01K 59/06, 09/27/1973) and in drum wax refineries (Patent No. 2077843, ⁶ A01K 59/06, 04/27/1997).

The disadvantage of this method is that since the sump or wax refinery is equipped with one or more layers of strainers, and the wax raw material contains resins, propolis, pollen impurities, cocoon remains, etc., forming lumps of different sizes, the duty cycle (throughput wax) of such a device will be underestimated, in addition, in general, structurally and technologically, the implementation of such a method of cleaning wax is complex and time-consuming.

A known method of cleaning wax through steam (Taranov G.F. Book of the beekeeper. M: Rosagropromizdat, 1992, p.255). However, at a working temperature of the steam wax refinery above 100 ° C, a prolonged and severe overheating of the wax is possible, and therefore its quality may deteriorate.

The closest technical solution is the method and device for producing a protective wax (patent No. 2054463, 6 СВВ 11/00, СВВ 17/28, 02/20/1996). The method of cleaning wax includes water treatment, cooking, filtering, additional water treatment. Wax cooking is carried out first in a stream of nitrogen, controlling its hardness, and then in a stream of air, controlling viscosity, is filtered on a hot filter apparatus under pressure. Filtration of the wax melt by hot pressing does not provide a sufficiently complete removal of mechanical impurities and the absolute destruction of microorganisms in the wax. Multistage technology for digestion and filtration of wax is laborious and energy intensive.

The technical result of this invention is to increase the efficiency of the maximum deep cleaning of the wax.

The technical solution is achieved in that the cooking is carried out at a temperature of 100 ° C with simultaneous exposure to ultrasonic vibrations directed from bottom to top at frequencies that cause a cavitation effect that destroys all pathogenic microorganisms and creates a flotation enrichment regime that removes all colloidal suspensions to the surface in the form of foam, which is continuously removed using a chilled foam remover.

From the digester, the melted wax through the lower hole enters an ultrasonic bath having a constant temperature of 100 ° C, and falls under the influence of ultrasonic vibrations directed from the bottom up, as a result of which there is a cavitation effect - rapid boiling with small bubbles, which leads to the complete destruction of pathogenic microorganisms, and is further filtered. During the propagation of ultrasound in a fluid around objects located in it and having a different density, microscopic regions of very high pressure (tens of thousands of atmospheres) arise, followed by a high vacuum. No microorganism can withstand such effects, and mechanical destruction of bacteria occurs. At the same time, the rapid movement of the bubbles up creates a flotation concentration regime - the removal of colloidal suspensions to the surface in the form of foam, which is continuously removed by a cooled endless scraper.

Using the proposed method instead of the known ones reduces the cost of cleaning wax from mechanical impurities, colloidal suspensions and allows for complete disinfection in one stage at low temperatures, which allows you to save its structure in its original form.

Claims (1)

A method for deep cleaning of wax, including boiling and filtering, characterized in that the boiling is performed at a temperature of 100 ° C with simultaneous exposure to ultrasonic vibrations directed from the bottom up at frequencies causing a cavitation effect that destroys all pathogenic microorganisms and creates a flotation enrichment regime that tolerates all colloidal Suspend to the surface in the form of foam, which is continuously removed.