(57) Abstract:Usage: devices in blast furnaces for industrial use, such as metal, steklovarennyh, furnaces of thermal power plants. The inventive exhaust system includes a gas turbine circuit, the ejector and the secondary furnace will produce the camera. Gas turbine circuit includes an air compressor, combustion chamber, gas turbine and the output nozzle. The gas turbine drives an air compressor, furnace fan and the exhaust fan. Coming from the output nozzle of the combustion products ejection from the atmosphere, mixed with air from the fan and into the secondary furnace will produce the camera, and then into the furnace. The installation will allow you to do without an external source of mechanical energy and uses the chemical energy of the fuel burned in the gas turbine circuit. 2 C. p. F.-ly, 2 Il. The invention relates to devices for blast furnaces for industrial purposes, such as steel, steklovarennyh, furnaces of thermal power plants and otherKnown exhaust installation comprising a fan and an exhaust fan driven by two third-party sources, such as electric motors 
The closest on-tereasa United with the furnace air and flue paths dened respectively by the fan and exhaust fan 
A disadvantage of the known installation is that the installation requires the motor to drive the fan and exhaust fan, given that these devices typically consume more power, and greatly increase the dimensions of the motors, is complicated by their regulation.The technical result of the present invention is to increase efficiency by combining in a single device the functions of the blower and its drive.This technical result is achieved by the fact that the famous draught installation comprising United with the furnace air and flue paths dened respectively by a fan, exhaust fan, gas turbine equipped with a circuit in the form of consecutive stream gas air compressor, combustion chamber, gas turbine and the output nozzle, air ejector and the secondary furnace will produce the camera, while the compressor and turbine mounted on the same shaft, an ejector is installed on the output nozzle, the ejector and the gas-turbine circuit is connected to the air path in parallel to each other, the secondary furnace will produce a camera is connected to the air path between the gas path and combustion chamber, and gas turbine circuit is completed from power prigotovitelno also in the form of the free turbine, posted by air duct in the flow behind the exit nozzle of the gas turbine circuit and kinematically associated with the exhauster.In Fig.1 shows an exhaust installation with mechanical transmission between the shaft of the gas turbine circuit and the smoke exhauster; Fig.2 installation with a free turbine connected to the exhaust fan.Draft setting contains 1 air and flue 2 paths connected to the furnace 3. In the air tract 1, a fan 4, in the flue tract 2 exhaust fans 5. Gas turbine circuit 6 and the ejector 7 is connected to the air path in parallel to each other. Gas turbine circuit 6 consists of a consecutive stream of gases of the air compressor 8, the combustion chamber 9, the gas turbine 10 and the output nozzle 11. Air compressor 8 and the gas turbine 10 is installed on the same shaft. The ejector 7 is installed on the output nozzle 11. Gas turbine circuit is performed with a power drive to the shaft of the exhaust fan 5. The actuator may be in the form of mechanical transmission 12. The actuator may be in the form of a free turbine 13, placed in the air path 1 in the stream beyond the outlet nozzle 11 of the gas turbine circuit 6 and kinematically associated with the exhauster 5. The secondary furnace will produce the camera 14 is and works as follows.In the combustion chamber 9 is supplied with liquid or gaseous fuel and compressed air from the air compressor 8. The combustion products are first on the gas turbine 10 of a gas turbine circuit 6, and then on the free turbine 13 and lead them on rotation. The torque is transmitted to the air compressor 8, the fan 4 and the exhaust fan 5.After output from the output nozzle 11 hot products of combustion ejection the air in the ejector 7, and is mixed with air coming from the fan 4. Diluted thus the combustion products enter the secondary furnace will produce chamber 14, where it is full combustion, and then fed into the furnace 3. Gases are exhausted from the furnace 3 by the exhaust fan 5. Thus, the proposed draft installation requires no outside source of mechanical energy and uses the chemical energy of the fuel burned in the combustion chamber of the gas turbine circuit. 1. DRAUGHT INSTALLATION comprising United with the furnace air and flue paths dened respectively by the fan and exhaust fan, characterized in that it is equipped with a gas turbine circuit in the form of a consecutive stream of gases air combretum the compressor and turbine mounted on the same shaft, the ejector is installed on the output nozzle, the ejector and the gas-turbine circuit is connected to the air path in parallel to each other, the secondary furnace will produce a camera is connected to the air path between the gas path and combustion chamber, and gas turbine circuit is performed with a power drive to the shaft of the exhauster.2. Installation under item 1, characterized in that the actuator is made in the form of a manual transmission.3. Installation under item 1, characterized in that the actuator is made in the form of the free turbine placed in the air path in the flow behind the exit nozzle of the gas turbine circuit and kinematically associated with the exhauster.
FIELD: heat power engineering.
SUBSTANCE: boiler plant comprises chimney with air passage between the reinforced concrete shaft and lining, which define gas discharging passage, air heater mounted under the gas discharging passage, and fan for supplying heated air to the air passage in the chimney. The air passage is separated by two vertical baffles into two sections. The pipe is provided with a box for discharging the heated air from one section of the air passage to the other.
EFFECT: enhanced efficiency.
FIELD: technologies for combustion of flush gases, including those under high pressure, during extraction and processing of natural gas and oil.
SUBSTANCE: body of burner, mounted on gas inlet pipe, is made conical with widened portion at upper portion, in the body additionally mounted are two catalyst elements, at lower portion on inlet section first catalyst element is positioned, and above on outlet section - second catalyst element, rotary shutters are mounted on base of conical body in additional way, so that in closed position they are in contact with first catalyst element, and open position between first catalyst element and body gap is formed, also, device is additionally provided with one or more main torches, mounted in gas inlet pipeline below rotary shutters and first catalyst element. Relation of diameters of first and second catalyst elements matches relation of debits of hydrocarbon gas, fed in normal mode and during salvo exhaust. Catalyst elements are manufactured either in form of cell-like structured blocks with direction of channels in parallel to direction of feeding of flush gases, or in form of block sections with granulated catalyst, for example, Rachig rings, or in forms of block sections with active-catalyst metallic shavings, or in form of blocks with active-catalyst metallic meshes.
EFFECT: higher ecological safety and fullness of combustion of flush gases in broad flow range, simplified construction and comfort of maintenance.
6 cl, 3 dwg
FIELD: water heating.
SUBSTANCE: boiler can be used for heating and hot water supplying. Boiler has rectangular closet provided with heat insulation and casing. There is furnace with burner, heat exchanger and branch pipe for letting combusting gas through outer wall of room's wall are disposed inside the closet. The branch pipe is provided with cassette filled with adsorption matter. Cassette is hermetically placed in branch pipe for letting combustion products out between casing of rectangular heat-protected closet and internal surface of outer wall of the room. Branch pipe for letting products of combustion out behind outer wall of the room is mounted in vertical and has cone-shaped muzzle with curvilinear planes and guides and twisting ribs.
EFFECT: improved ecological parameters of exploitation.
FIELD: methods of purification of flue gases.
SUBSTANCE: the invention is pertaining to the method of purification of flue gases and may be used to decrease the outbursts of nitrogen oxide with the help of the method of the high-temperature selective non-catalytic reduction. The method provides for feeding of the previously prepared steam-gaseous reduction mixture into the gas flue of the flue gas burning aggregate with the temperature of the flow of the purification gases of 700-1200°C. At that the steam-gaseous reduction admixture is prepared in the connected to the gas flue high-speed reactor during 0.5-5 seconds by introduction of a water solution of carbamide with a superheated steam at the pressure of 3-10 atm. Concentration of the water solution of carbamide makes 20-40 mass %. The time of the contact of the water solution of carbamide with the superheated steam predominantly makes 0,5-2 seconds. The pressure in the reactor predominantly makes 3-6 atm. The temperature of the superheated steam makes 200-400°C. The invention ensures simplification of the production process of purification of the effluent gases from nitrogen oxides, to increase the level of purification of such a gas in the broad range of the temperatures of the purified combustion products, and also to decrease significantly the share of the secondary contaminant - ammonia, in the purified gases.
EFFECT: the invention ensures simplification of the production process of the effluent gases purification from nitrogen oxides, to increase the level of purification of the gases in the broad range of the temperatures of the purified combustion products, to decrease significantly the share of the secondary contaminant - ammonia in the purified gases.
5 cl, 2 ex, 1 dwg, 2 tbl
FIELD: consuming industrial waste.
SUBSTANCE: method comprises securing the housing filled with the charge of the solid rocket fuel to the front part of the gas duct of the plant for using the charges of the solid rocket fuel, burning the solid rocket fuel, and processing the combustion products by cooling the combustion products with a material with high heat capacity, dry cleaning of gas with a neutralizer-sorbent, and afterburning the combustion products.
EFFECT: enhanced efficiency.
7 cl, 2 dwg
FIELD: arrangements or devices for treating smoke or fumes.
SUBSTANCE: head comprises gas supply pipe with gas gate and protecting shield mounted outside and coaxially at the top end of the gas supply pipe. The protecting shield is composed of two baffles made of two hollow trancated cones mounted one on the other. The grater base of the top baffle faces downward, and that of the bottom baffle faces upward. The smaller base is connected with the gas supply pipe.
EFFECT: enhanced reliability and prolonged service life.
2 cl, 2 dwg
FIELD: ferrous metallurgy; heat and power industry; other branches of industry; systems of production of the smoke-gas discharges utilization.
SUBSTANCE: the invention may be used in an iron and steel industry, at the enterprises of the heat and power industry and in the other branches of industry. The system the gas-smoke pipe with the gas duct on the metallic supports, the water-sprinkle installation, the water-collecting reservoir with the water outlet, the air duct, the water duct, the pumping station. The gas duct is made in two levels, at that the lower level of the gas duct ends with the muzzle, inside which there is the figured metallic plate forming near the muzzle throat the supercharge of the "C"-shaped form with the maximum clearance in the top point of the muzzle. The butt of the figured metallic plate of the "C"-shaped supercharge is dipped inside the muzzle and the butt of the muzzle is partially located under the water-sprinkler. The top level of the gas duct is located above the body of the water-sprinkler and starts with the gas collector with the open lower part. On the body of the water-sprinkler with the trilateral acid-resistant sheathing there is the grating with a net for the catalysts.
EFFECT: the invention ensures improved design and efficiency of the system operation.
FIELD: recuperation of energy from hot gas.
SUBSTANCE: proposed method is used for recuperation of energy from hot gas having temperature above 650°C and absolute pressure above 1.7 bar; gas contains non-solidified compounds of alkali metals and particles. Proposed method includes the following stages: cooling gas to temperature below 550°C with the aid of shell-and-tube heat exchanger where hot gas is passed via inter-tube space and cooling water is passed via space inside tubes where steam is formed from which steam energy is recuperated; particles of gas are separated by means of one or more centrifugal separating units arranged in succession to obtain content of dust below 400 mg/Nm3; gas is expanded in expansion machine for recuperation of energy.
EFFECT: enhanced efficiency of recuperation.
16 cl, 1 dwg
FIELD: heat power engineering.
SUBSTANCE: device comprises housing covered with a conical shield and provided with bottom conical chamber for collecting condensate, air heat exchanger coaxially mounted inside the housing, and base mounted on the head of the chimney shaft and provided with the air heat exchanger. The housing is provided with the cylindrical funnels for sucking cold air and discharging cleaned gases, the shell of the air heat exchanger provided with straight flow pipe bank with transverse supporting cross-pieces made for permitting change of the direction of air sucking into the interpipe space and mounted with a minimum space 1-3 mm in the oval opening in the sloping plate welded to the housing. The edge of the plate is flanged upward to define a sloping chute for descending the contaminated condensate. The base is shaped into the ring and provided with oval ports inclined to the side and receiving tips made of magnetic steel sheet and used for control of the magnetic field. From one side of the base, there is a cooled magnetic catcher connected with the space and branch pipe for collecting and removing condensate. In front of the catcher, there is a funnel for sucking a part of the hot chimney gases with dust from under the bottom tube bank of the air heat exchanger to the system for recirculation of the chimney gases. The method for catching emissions is also described.
EFFECT: expanded functional capabilities.
4 cl, 3 dwg
FIELD: treatment of combustion products.
SUBSTANCE: method comprises step supply of oxidizer and supplying vapor ammonium mixture. The secondary air is supplied upstream of the afterburning plant, and vapor ammonium mixture is introduced to the zone of the afterburning plant downstream of the set of fireproof surfaces.
EFFECT: reduced emission of nitrogen acids.