A furnace for burning liquid fuel waste
(57) Abstract:The invention relates to a thermal treatment of liquid waste fuels and can be used for neutralization in different areas of the economy. Combustible liquid waste is gasified in the gasification chamber with a lack of air. The furnace is further provided with an outer casing forming with the annular gas supply chamber gap. In the gasification chamber and the annular gap to form a twist in the opposite side eddies that occur in the afterburning chamber, when through the radial holes there takes the tertiary air. The products of combustion are removed through the exhaust tube. 4 C. p. F.-ly, 2 Il. The invention relates to a thermal treatment of liquid waste fuels and can be used in the design of furnaces for waste treatment for the different sectors of the economy.Known furnace for burning liquid combustible wastes containing placed centrally in the gasification chamber from the front wall and the secondary combustion chamber of gasification products, nozzles tangential admission of air to the chambers gasification and combustion chamber, a pipe for supplying liquid fuel waste that is connected axially of the Sabbath. The disadvantages of the known solutions, similar to the above, are reduced reliability, effectiveness and the degree of neutralization of waste.The technical result, i.e. the aim of the present invention is to improve the reliability, efficiency and degree of neutralization of waste.The technical result is achieved by the fact that the furnace for burning combustible liquid waste containing placed centrally in the gasification chamber from the front wall and the secondary combustion chamber of gasification products, nozzles tangential admission of air to the chambers gasification and combustion chamber, a pipe for supplying liquid fuel waste, axially connected to the gasification chamber through the end wall, and an exhaust pipe connected to the afterburner, according to the invention, provided with an outer set coaxial with the gasification chamber of the casing forming with the latter an annular gap, attached to the open end to the burning chamber and closed by the wall of the other end of the casing tangentially connected additional nozzles supplying air, moreover, the nozzles tangential admission of air to the gasification chamber and the casing opposite direction.In addition, Calavera gasification, and this aperture may be placed in the open end of the annular gap. The nozzles supplying air to the casing and the afterburning chamber may be spaced along the longitudinal axis of the furnace, while the inner side walls of the afterburner by butt joining of the housing are made of at least one row of radial holes. Additionally, the annulus can be installed swirler vanes.The swirling wash of air gasification chamber will provide reliable cooling, while at the same time will be heated secondary air. Spin air into the gasification chamber and the casing in opposite directions, will provide reliable mixing products of the gasification chamber with secondary air from the annular gap, and most importantly, this creates a reverse current of hot gases from the afterburner to the gasification chamber. Aperture setting intensifies the process of mixing the products of gasification and secondary air. Afterburner performed with the inner and outer side walls, between which a gap for the passage of air. The air cools the burning chamber, then through a series of radial holes into the chamber, which also contributes uvelichu; in Fig. 2 is a view along arrow a in Fig. 1.Furnace for incineration of combustible waste liquid contains the camera 1 post-combustion gasification products from the front 2 and rear 3 end walls. From the rear end wall 3 to the afterburning chamber 1 posted by the gasification chamber 4. To the cameras gasification 4 and the combustion chamber 1 is attached tangentially to the nozzles supplying air, respectively 5 and 6. Through the end wall 7 of the gasification chamber is connected axially to the gasification chamber 4, the supply pipe 8 liquid combustible waste. By the end wall 3 afterburners 1 attached to the exhaust pipe 9. Coaxial with the gasification chamber 4 has an outer casing 10, forming a side wall of the chamber 4 the annular gap 11 with the closed end face wall 12. To the casing 10 tangentially connected to the pipe 13 for supplying air. In the annular gap 11 is additionally placed aperture 14 installed in an internal radial clearance 15 to the gasification chamber 4. The furnace also includes inner and outer side walls 16 and 17 respectively afterburners, and in the inner wall 16 adjacent to the front wall 2 has a series of radial holes 18 for supplying tertiary air from the gap 19, formed the La burning combustible liquid waste is as follows.Combustible liquid waste pipe 8 is fed to the gasification chamber 4 in which raspisyvayutsya vortex air flow tangentially through the nozzles 5. With the ignition device 20 mixture of waste and air is ignited. Under the action of heat combustible liquid waste is gasified by partial combustion of waste. Moreover, the coefficient of excess air in the gasification chamber 4 is made of 0.3-0.7 depending on the type of waste. Secondary air through the nozzles 13 are served in the annular gap 11, and the nozzle 13 is connected to the casing 10 so that the twist of the vortex in the gap was the opposite direction to the twist of the vortex in the chamber 4. Passing in the gap 11, the air cools the wall of the chamber 4 gasification and heated at the same time. In the afterburning chamber 1 is twisted in the opposite side, the vortices from the gasification chamber 4 and out of the gap 11 intensively mixed, on the border of these vortices formed by the flame front, this creates a reverse current of hot gases from the afterburner 1 to the exit of the gasification chamber.Setting the aperture 14 with a radial gap 15 creates favorable conditions for further turbulence in the flow after the diaphragm 14. In addition, the gap 15 can be placed updat the walls 16 and 17 of the camera 1 afterburning. The air cools the chamber wall 1 of the combustion chamber, in this heat and through the radial holes 18 is fed into the burning chamber.Intensive mixing of combustible waste and air into the gasification chamber 4, the organization of a three-stage supply air at a high degree of turbulence in the flow allows, on the one hand, to reduce the formation of oxides of nitrogen, and on the other provides a complete neutralization of liquid waste.The coefficient of excess air at the outlet from the chamber 1, the combustion chamber is about 1.3 to 1.5. The combustion products are removed from the chamber 1 through the pipe 9.The invention improves the reliability, efficiency and degree of neutralization of waste by intensive mixing of waste and air and cooling elements air furnace design. 1. A FURNACE FOR BURNING LIQUID COMBUSTIBLE WASTES containing placed centrally in the gasification chamber from the front wall and the secondary combustion chamber of gasification products, nozzles tangential admission of air to the chambers gasification and combustion chamber, a pipe for supplying liquid waste, axially connected to the gasification chamber through the end wall, and an exhaust pipe connected to the afterburner, osim with the latter an annular gap, attached to the open end to the burning chamber and closed by the wall of the other end of the casing tangentially connected additional nozzles supplying air, and the nozzles tangential admission of air into the gasification chamber and the casing opposite direction.2. Oven under item 1, characterized in that the annular gap further a diaphragm installed in an internal radial clearance to the gasification chamber.3. Oven PP. 1 and 2, characterized in that the diaphragm is placed in an open ring end gap.4. Oven PP. 1 to 3, characterized in that the nozzles supplying air to the casing and the afterburning chamber spaced along the longitudinal axis of the furnace.5. Oven PP. 1 to 4, characterized in that the inner side walls of the afterburner by butt joining of the housing are made of at least one row of radial holes.
FIELD: incineration of waste.
SUBSTANCE: method comprises thermal decomposition of slimes and discharging products of treatment. The thermal decomposition is performed in the reactor provided with electrodes generating the electric arc, and activation is performed with the use of blade wheel. The slime is activated by rising portions of the slime from the bottom of the reactor hopper, throwing up, and spraying throughout the space of the reactor so that to generate fluidized bed with simultaneous treatment with the use of the electric arc.
EFFECT: decreased cost and enhanced environmental protection.
FIELD: woodworking industry; methods degassing hot water.
SUBSTANCE: the invention is pertaining to the equipment for fire neutralization of the waste water at the enterprises of woodworking industry. The installation for fire neutralization of the waste water at the enterprises producing carbamide-formaldehyde resins contains: the boiler, the pulverized-coal burner, the injector with the radial nozzle for sputtering the water directed to the slag, and established with the capability of the reciprocal motion. At that the nozzle body is made with the external threading and established in the motionless nut with the capability of the limited rotation with turning movement concerning the vertical plane of symmetry at an angle of 60-80°, and the injector is arranged opposite to the pulverized-coal burner. The technical result is the increased efficiency of neutralization of the waste water.
EFFECT: the invention ensures the increased efficiency of neutralization of the waste water.
2 cl, 1 dwg
FIELD: power engineering.
SUBSTANCE: proposed heat-recovery boiler furnace incorporating secondary-air supply unit feeding air in the form of jets to mentioned furnace has front wall, rear wall, and side walls, black-lye spraying devices mounted on mentioned walls flash with the latter, and plurality of air ducts disposed at several horizontal levels on mentioned walls for feeding air from air supply unit to furnace; mentioned secondary-air supply unit has two horizontal air levels at different heights disposed above lowermost air level or levels and below black lye spraying level or levels; secondary air is supplied from two opposite walls at two mentioned levels; air ducts are disposed at each level so that secondary-air jets are introduced in alternating configuration; air jets of mentioned two air levels are actually disposed one above another in vertical rows, each row being formed by two air jets. Distance V between air levels in vertical direction, as measured from cross axial lines of air ducts to air levels is evaluated using formula V/L ≤ 0.5, where L is distance between two adjacent air ducts at same air level, as measured from longitudinal axial lines of adjacent air ducts.
EFFECT: ability of affording permanent burning air ingress in boiler at all charge levels, improved black lye and air mixing, enhanced environmental friendliness.
24 cl, 3 dwg
SUBSTANCE: method comprises injecting waste in the blast flow inside the tuyere apparatus of the blast furnace together with or separately from the liquid fuel through the spraying nozzle at a distance of 0.6-1.8 of the length of the tuyere apparatus under the pressure that exceeds the blast pressure by 50-100 kPa. The flow rate of the chlor-organic waste is determined from the formula proposed.
EFFECT: enhanced completeness of incineration.
FIELD: organic chemistry.
SUBSTANCE: device comprises two vertical housings. The first housing has nozzle mounted in its top section and provided with the separator, diffuser that defines a chamber together with the housing, chamber of the evaporator for waste to be recovered, connecting branch pipe for supplying the waste from the tank, ventilation branch pipe screwed in the bottom section of the housing, and pipeline for supplying gas. The second housing is mounted inside the first housing to define a space for supplying the secondary air for afterburning the toxic residues.
EFFECT: simplified assembling and servicing.
1 cl, 2 dwg
FIELD: incineration of waste.
SUBSTANCE: plant comprises vessel filled with the liquid waste and provided with the branch pipes of emergency discharging of the steam-gas mixture, branch pipe for discharging concentrate to the device for separation of the suspension of liquid waste into liquid and solid phases, chamber of pulse burning with burners, resonance pipe, and cyclonic bubbling evaporator. The plant is provided with the ejector connected with the pump for supplying liquid waste, source of ozone-air mixture and heater of the mixture of liquid waste with ozone-air mixture arranged in the resonance pipe connected with the vessel of the preliminary treated liquid waste through the pipeline. The pipeline is perforated. The vessel is connected with the tank for treating liquid waste and sucking pipeline of air blower that supplies the steam-gas mixture to the chamber of pulse burning from the vessel of preliminary treated liquid waste. The bottom section of the vessel receives the pickups for measuring electric conductivity of the concentrate and concentration of harmful organic admixtures. The pickups are connected with the device for automatic control and control valve mounted in the branch pipe for discharging concentrate to the separator of suspension into the liquid and solid phases.
EFFECT: enhanced efficiency and reliability.
FIELD: pulp-and-paper industry.
SUBSTANCE: system for controlling of flow mode in soda regeneration boiler comprises at least furnace 1, primary air openings 4 provided in lower part of furnace, combustion air openings 5 positioned above openings 4, black liquor spraying nozzles 6 positioned above openings 5 and combustion air openings 5b positioned above black liquor spraying nozzles 6. Soda regeneration boiler is equipped with essentially narrow nozzles 7 for supplying of power into flow field. Stream pressure within nozzles 7 is at least twice as high as stream pressure within combustion air openings 5, 5b.
EFFECT: improved operating characteristics of boiler and reduced cost of equipment.
9 cl, 8 dwg
FIELD: different industries.
SUBSTANCE: invention relates to thermal neutralization of liquid wastes by fire method. Proposed plant contains tank for treatment of liquid wastes with emergency drain branch pipes, vapor-gas mixture outlet branch pipe and branch pipe to direct concentrate to device separating liquid waste suspension into liquid and hard phases, pulsating burning chamber with burners, resonance pipe, and cyclone bubble evaporator. Plant is furnished with ejector connected, accordingly, by pipelines with liquid waste feed pump, ozone-air mixture feed source and liquid waste and ozone-air mixture heater arranged in resonance pipe connected by pipeline with self-contained energy complex hydraulic steam turbine-generator connected by pipelines, respectively, with preliminarily treated liquid waste tank and with suction pipeline of air blower providing delivery of vapor-air mixture with liquid waste treatment products into pulsating burning chamber, and liquid waste, into tank for preliminarily treated liquid waste connected by pipeline with liquid products treatment tank. In lower part of the latter, sensors are arranged to measure electric conductivity of concentrate and check content of harmful organic admixtures being connected by electric circuits, respectively, with device for automatic control and shut off-and-control valve arranged on branch pipe directing concentrate to separator of suspensions into liquid and heard phases providing automatic removal of said phases.
EFFECT: reduced specific consumption of fuel in process of neutralization and discharge of carbon dioxide and nitrogen oxides into atmosphere.
2 cl, 1 dwg
SUBSTANCE: invention relates to devices for liquid wood-working wastes sterilisation. Cyclone furnace for liquid wood-working wastes sterilisation mainly waste water from urea-formaldehyde resins production contains vertical cylindrical housing with tangentially displaced burner, nozzles for small-fractional wood wastes supply and liquid waste supply, air distributor with nozzles installed so that it can be displaced in axial direction, gas flue and ramp. Outlet part of air distributor is represented as truncated cone of revolution directed by its larger base upward and towards outlet of liquid wastes. Air distributor nozzles are arranged peripherally along larger base and at an angle to it in direction of combustion products twisting in furnace.
EFFECT: increase of waste sterilisation effectiveness and furnace productivity.
SUBSTANCE: invention relates to waste processing and utilisation. System of waste thermal utilisation contains column for waste thermal pyrolysis, combustion chamber for burning thermal pyrolysis gases, device for thermal purification and cracking of gases, coming from combustion chamber, heat-exchange device, containing device for water concentration and device for concentration of elements, contained in discharged gas, formed in device for thermal purification and cracking, device for carbon dioxide CO2 condensation, device for cooling hot parts of system and device for cogeneration. Invention also relates to application of said above system, in particular for processing sediment from stations for sewage water or livestock flow purification.
EFFECT: utilisation of wastes with high water content
46 cl, 6 dwg