Device for burning liquid fuel waste
(57) Abstract:The invention can be used in the chemical industry and other sectors of the economy that generate combustible liquid waste and requires disposal of the combustion installation. The device is equipped with an additional tier of secondary air nozzles located at the level of the average cross section of the hearth. 1 Il. The invention relates to a device for neutralizing the liquid process waste method and can be used in chemical, petrochemical, industrial, energy and other sectors of the economy that generate combustible liquid waste with a high-boiling components.Known burner device for fire decontamination liquid combustible wastes containing cylindrical prechamber with tier secondary air nozzles, and tub of bubbling smaller diameter provided with a conical chamber hearth. Due to located inside of the bath bubble lattice, made in the form of inverted perforated holes of the Cup when the device is in the bath creates a layer of frothy foam with favorable Herod the good performance of brythonic and improves the performance of the decontamination process. A large proportion of relatively small drops in brythons, allowing a high rate of evaporation, increases the completeness of the firing processing of substances with minimum dimensions of the combustion chamber.The disadvantages of the mentioned devices is the coking burners in nadsloevom space (the separation zone, the nozzle, the walls of the pre-chamber near poda) when burning liquid process wastes containing high-boiling organic components that require periodic shutdown devices for the appropriate repairs. Coking predpremernogo separation space from waste incineration with high-boiling components is caused by the presence of the primary fuel-air mixture of coarse droplets waste that is larger than 300 μm. These droplets upon contact with the walls of the hearth after evaporation of light fractions of the waste form on them coke residue. After prolonged use of the device coke growths, continuously increasing, gradually terminate access of waste in the area of neutralizing them and require periodic removal.The purpose of the invention improve the reliability of neutralization coking waste with the exception of coking walls of the pre-chamber below the secondary nozzles in the States creation in the separating space below the level of the secondary air nozzles aerodynamic environment promoting efficiency washer air flow surfaces, fencing around the perimeter of the separation zone. This deteriorates the contact of the droplets with the conical surface of the floor, which reduces the likelihood of coking. In addition, possible nabros drops on the surface of the conical pod eliminates the additional air flow fed parallel to the surface of a layer below the level of the input primary flow secondary air. To reduce energy losses for more air flow, improving the capture and transport of droplets of waste from the separation zone to the combustion zone with the exception of contact of the droplets with the walls of the hearth enter this thread close to the axis of the device.The technical result of the invention is that the device for burning liquid combustible wastes containing a cylindrical chamber with secondary air nozzles, and tub of smaller diameter provided with a conical chamber hearth, the device is equipped with an additional tier of the secondary air nozzles. When this layer is located at the level of the average cross section of the hearth.The purpose of this model is the protection of the inner surface of the inclined hearth from surge drops when podarilova zone baths.In the case of approximation of the additional nozzles to the axis of the device, the distance between opposing nozzles additional tier lower than for the main nozzles, and a portion of the secondary air in pricelevel region is embedded in the Central part of the separation space, along with the main part of the generated droplets and carrying them up the center of the device, eliminating the contact of the droplets with the enclosing surfaces, and, consequently, preventing coking of the latter.Such features as the additional tier of secondary air nozzles located at the level of the average cross section of the conical hearth with the approach of the nozzles to the axis of the device, in a known technical solution is available and claimed for the first time.The drawing shows a device for burning liquid fuel waste.The device includes a cylindrical chamber 1, is provided in the upper part of the recess 2 to output of products of combustion, and in the lower part of the conical hearth 3. Within the walls of the pre-chamber 1 above the hearth 3 around the perimeter of the completed secondary air nozzle 4 provided with a duct 5. At the level of the average cross section of the conical under 3 equipped DOPOLNITEL pipe 8 for supplying liquid waste and bubble bars 9, which is in communication with the bottom of the box 10 primary air.The device operates as follows.Liquid combustible waste through pipe 8 enters the tub 7 on the surface of the bubble lattice 9. Through the frame 10 beneath the grid 9 is served bubbling agent (primary air) in an amount proportional to the performance of the device.After bubbling agent through the grid openings 9 into the bath 7 inside of the bath 7 is formed dynamic hatridge layer from the surface of which in the destruction of the tapes bubbles are entrained droplets and couples retreat. The consumption of liquid waste through the pipe 8, is set in accordance with the performance of the device such that when the initial layer height 60-80 mm height two-phase foam system exceeded protruding into the bath 7 a part of the bubble lattice 9. Consumption bubbling agent through the duct 10 through the hole lattice 9), so that when the speed of bubbling in the upper section of the bath 7 of the order of 0.9-1.3 m/s ensure reliable separation back into the bath 7 large droplets (diameter more than 600 μm). The stepped profile of the grating 9 with a projecting part in the bath center 7 provides the greatest density of brythonic along the axis of the device when the minimum is 1 enters through the main nozzle 4 (upper level) and additional nozzles 6 pod 3 (lower level) with a speed of 30-40 m/s Cross-section of the nozzles 4 and 6 take such that the flow rate of secondary air supplied into the chamber 1 through the lower tier (nozzle 6), accounted for 30-50% of total consumption, oxidation supplied through the duct 5.The distributed supply of secondary air by tier (on the nozzles 4 and 6) at different removing them from the axis of the device in terms of conical hearth 3 (at offset nozzles in the vertical and radial direction) creates a favorable wind conditions between the nozzle 4 and an EN 7 when effective recirculation of air jets nozzles after 6 due to reverse currents radially washed air to the inner surface of the hearth 3. This prevents contact of the droplets with the hearth 3 when their possible application. In addition, converging toward the center of the jet of air emerging from the nozzles 6, push, shift brythons departing from the periphery of the base of the hearth 3 to the axis of the device, preventing the surge drops to under 3 and not allowing it to coking. Extra nozzles 6 in the vicinity of the axis of the device in contrast to the main nozzles 4 leads to the introduction of pricelevel area part of the secondary air in the Central part of the separation zone above the hearth 3. In this case, pairs and small drops of waste, transform the property carried up to the level of the nozzle 4 with the exception of contact of the droplets with the hearth 3.The optimal location of additional tier nozzles 6 secondary air corresponds to an average cross-section of the conical pod 3. In the case of approximation tier nozzles 6 to the main nozzles 4 is deteriorating effect of interaction between adjacent streams of secondary air, which degrades air washes the surface of the hearth 3 and leads to the formation of coke buildup in the bottom of the hearth 3. In addition, deteriorating OTDELENIE drops departure from pod 3, which increases the rate of coking. Approximation tier nozzles 6 to the base of the hearth 3 contributes to stagnant zones at the surface of the conical hearth 3 between the tiers of the nozzles 4 and 6 and, as a consequence, to the formation of coke buildup. In addition, when approaching nozzles 6 to the surface layer of the waste bath 7 deteriorates the separation effect with the capture stream of large droplets and their application in under 3 with its subsequent carbonization.Small drops and a couple of waste above the level of the nozzles 4 and 6 are burned in the volume of the pre-chamber 1 in the stream of secondary air supplied in an amount to provide an excess air factor of from 1.1 to 1.15, and subjected to firing ordnance. Products fire-processing of the pre-chamber 1 through the breach 2 is removed outside of the device for dalneishih is the notes bubbling device under fire decontamination fluid coking waste besporyadochniy way. DEVICE FOR BURNING LIQUID COMBUSTIBLE WASTES containing a cylindrical chamber with secondary air nozzles, and tub of smaller diameter provided with a conical chamber floor, characterized in that it is provided with an additional layer of secondary air nozzles located at the level of the average cross section of the hearth.
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