Abstract

Analyzed the system of drying plant air cleaning, specializing in the production of food powders, dust emission identified place in the shop drying in the production of soluble dietary powders, the parameters of the dryer exhaust coolant, analyzed the properties of the product, as well as determined the effectiveness of the use of air purification equipment. Analyzed used at the enterprise two-stage cleaning system. As a first purification stage conical cyclone installed as a second stage purification analyzed dust collector is proposed with internal circulation of the liquid. It was found that the drying of the powder contained in the emissions of a large proportion of the fine fraction of dust. Several studies have been conducted with this food dust. It was found that the collection efficiency in the cyclone ranged from 68% (tea dust) to 92% (dust kvass wort). Analyzing the data obtained indicated that the efficiency of cleaning exhaust coolant is heavily dependent on the food composition of disperse dust, and less than 10 microns particles is insufficient. It is proposed to use for cleaning the coolant wet dust collector with internal circulation of the liquid. The regularities of change of concentration of solids in the cleaning liquid, its viscosity and surface tension with increasing operating time since the start of the dust collector. It is found that increasing the concentration of solids in the cleaning liquid increases with the operating time of the machine since the start-up leads to changes in surface tension and viscosity of the liquid. It is shown that the effective dust collection in the machine decreases as the viscosity of the working fluid. Both theoretically and experimentally established patterns may be used when calculating the optimum specific liquid flow to provide effective cleaning and releases the trapped product return process cycle.

Highlights

  • dust emission identified place in the shop drying in the production of soluble dietary powders

  • As a first purification stage conical cyclone installed as a second stage purification analyzed dust collector is proposed with internal circulation

  • It was found that the drying of the powder contained in the emissions

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Summary

Introduction

В.Анализ пылеочистного оборудования, используемого при производстве растворимых порошков // Вестник ВГУИТ. В первую очередь этим фактором является недостаточная эффективность очистки воздуха от мелкодисперсной пыли. Анализ полученных ранее результатов показывает, что в среднем потери сухого продукта составляют около 4% при сушке цикория, 3% при сушке концентрата квасного сусла, 9% при сушке порошка чая от производительности сушилки. Но все же основной причиной потери готового пищевого продукта, а также дополнительного загрязнения воздуха в санитарной зоне предприятия является недостаточно эффективная работа используемого очистного оборудования.

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