Summary. This carried out work is aimed enhancing the efficiency of the spray scrubber by combining processes and improving hydraulic conditions in the device. The problem of treating waste gases is often characterized by unique features and the significant factor that makes it difficult to find a solution to the problem of treatment is the low and/or variable concentration of the pollutant. With a removal efficiency of up to 98 %, wet treatment technology in scrubber type devices is the only practical method advantageous to the treatment of waste gases. The set objective is solved by developing a two-stage treatment system for pyrolysis gas based on ejector scrubbers. Their advantage - a central nozzle supply that allows the scrubber to operate on the principle of an ejector pump. A drift eliminator of the developed device is located on the case unit and a chain is suspended from a clamp mounted on the lower part of the tube neck by pins and two detachable joints. The operation of the scrubber was checked in compliance with the absorption gas treatment of sulfur dioxide. A chemical sorbent, calcium carbonate which is produced as a by-product in the manufacture of nitroammophos at JSC “Minudobrenia” factory is used. Preliminary results indicate that the stiochiometric inlet ratio of Ca/S equals about 2.0 and SO2 emissions reduce by 80-90 %, significantly larger than the planned 70 % and subsequently corresponds to the residue concentration of less than 30 mg/m3 . This is explained by the greater degree of capture and deposition of the sorbent on the chain curtain (not more than 20 mg/m3 ). The proposed device for treating gases enables: improvement in the efficiency of gas treatment; increased reliability; increase in the degree of treatment of the gas flow without the use of additional equipment; reduction in metal and design complexity; reduction on the cost of the treatment process and simplification in the device design.

gas purification, improvement of the efficiency, sulfur dioxide, absorption, scrubber, ejector

1. Лазарев Н.В., Гадаскина И.Д. Вредные вещества в промышленности: справочник для химиков, инженеров и врачей. М.: Химия, 2001. 608 с. Lazarev N.V., Gadaskina I.D. Vredniye veshchestva v promyshlennosti [Harmful substances in industries]. Moscow, Khimiia, 2001. 608 p. (In Russ.).

2. Вихрев Ю. В. Повышение эффективности и улучшение экологических характеристик современных энергоустановок // Энергетик. 2002. № 3. С. 9-10. Vikhrev Iu. V. Enhancement of efficiency and improvement of ecological characteristics of modern energy installations. Energetik. [Power engineer], 2002, no. 3, pp. 9-10. (In Russ.).

3. Кол А.Л., Ниелсен Р. Газоочистка: учеб. пособие для студентов. Хьюстон, 1997. 1395 с. Kohl A.L., Nielsen R. Gas purification. Houston, 1997. 1395 p.

4. ГОСТ Р 50831-95 Установки котельные. Тепломеханическое оборудование. Общие технические требования. М.: Госстандарт России, 1995. GOST R 50831-95 Ustanovki koitel’nye. Teplomekhanicheskoye oborudovaniye. Obshchie tekhnicheskie trebovaniia. [Boiler plants. Thermal mechanical equipment. General technical requirements]. Moscow, Gosstandard Russii, 1995. (In Russ.).

5. Вальдберг А.Ю., Николайкина Н.Е. Защита атмосферы: учеб. пособие для вузов. М.: Дрофа, 2008. Val’dberg A.Iu., Nikolaikina N.E. Zashita atmosferi [Protection of the atmosphere]. Moscow, Drofa, 2008. (In Russ.).

6. Заявка на изобретение №153016, Россия. Аппарат для мокрой очистки газов / Панов С.Ю., Химвинга М., Зинковский А.В.; Заявл. 29.11.13. Panov S.Iu., Himwiinga M., Zinkovskii A.V. Apparat dlia mokroi ochistki gazov [Device for wet treatment of gases]. Application for invention no. 153016, RF. 2013.

7. Горемыкин В.А., Красовицкий Ю.В., Логинов А.В., Панов С.Ю. Энергосберегающее пылеулавливание при производстве керамических пигментов по “сухому способу”. Воронеж: Воронежский государственный университет, 2001. 296 с. Goremykin V.A., Krasovitskii Iu.V., Loginov A.V., Panov S.Iu. Energosberegaiushchee pyleulavlivanie pri proizvodstve keramicheskikh pigmentov po sukhomu sposobu [Energy efficient dust removal in the production of ceramic pigments using the "dry method"]. Voronezh, VGU, 2001. 296 p. (In Russ.).