Archive - Известия Казанского государственного архитектурно-строительного университета.

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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Taimarov Mikhail Alexandrovich doctor of technical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State Power Engineering University The organization address: 420066, Russia, Kazan, Krasnoselskaya st., 51 Lavirko Yuri Vasilyevich candidate of technical sciences, associate professor Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleUse of fuel oil sludge and wood sawmill waste in small-scale energy
Abstract.Problem statement. After washing the fuel oil tanks at thermal power plants and other facilities, there are lots of oil sludge and oily effluents, which cannot be used as secondary fuel without the use of furnaces of a special design. At sawmills and wood processing enterprises, lots of secondary wood materials are accumulated, which can be processed into demanded energy resources only if appropriate technologies are available. The aim of the study is to design a universal boiler. Task: integrated use of oil sludge and wood waste as fuel. Results. Complex use of wood waste and sludge as fuel for boiler developed, including the technical capabilities of the fluidized bed, grate and flaring. A universal boiler with three furnaces for burning solid oil sludge in a fluidized bed, liquid oil sludge in a chamber furnace, wood waste in a moving layer on a chain lattice was developed. Solid powdered oil sludge enters through the pre-chamber into the first furnace, working on the principle of a fluidized bed. The height of the fluidized bed is adjusted by the amount of quartz sand loaded into the first furnace. The second furnace with a flue connected to the first furnace. Preheating of the second furnace is carried out with the help of flat-panel burners located on two walls by burning fuel natural gas in them. At the same time, the flame of the burners heats the refractory lining of the walls of the second furnace, the radiation of which ignites the layer of wood waste on the chain lattice. The third furnace, which operates on the principle of chamber combustion of liquid waste oil sludge, is connected by a gas duct to the second furnace. Of the second furnace receives the products of combustion in a third furnace. The gaseous products of combustion of the sludge and the products of combustion received from the first and second inserts, give the heat radiation of the display surfaces, and further, the convection heating surfaces of the superheater, economizer and air heater. With the thermal power of the boiler 30 MW, the amount of electricity generated is 12 MW. Conclusions. The significance of the results for the construction industry is that a universal boiler has been developed for the simultaneous combustion of solid and liquid oil sludge and wood to produce a pair of energy parameters used to generate electricity. The types of burners for fluidized bed furnaces, layer combustion of wood and chamber combustion of liquid oil sludge are proposed.
Keywords.fuel oil sludge, combustion, nozzle, furnace, fluidized bed, torch, heat energy, wood waste, boiler, chain grate, chamber combustion.
For citations:Taimarov M.A., Lavirko Y.V. Use of fuel oil sludge and wood sawmill waste in small-scale energy // Izvestiya KGASU. 2019. №3(49) P.147-153.

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