Installation for implementing the method of thermal treatment polyhalogenated hydrocarbons
(57) Abstract:The invention relates to techniques for thermal treatment of liquid POLYHALOGENATED hydrocarbons. The combustion chamber is made three-band and equipped with jet nozzles for water supply. The nozzle is made in the nozzle liner concentrically around the critical section from the expanding portion when moving from the first zone of the second camera. At the outlet of the second zone of the combustion chamber is a heat exchanger-the heat exchanger coaxially with the main camera, fulfilling the role of the third zone. Shirt heat exchanger may serve as conduits for feeding primary air and waste. 1 C. p. F.-ly, 1 Il. The invention relates to techniques for thermal treatment of liquid POLYHALOGENATED hydrocarbons and can be used in chemical technologies for disposal of industrial waste, related to the above mentioned substances.Known installation of thermal treatment of liquid waste containing system supplying additional fuel, waste and air, a combustion chamber, a steam spray nozzle waste, additional fuel injectors, throttle plate with a hole.The disadvantage to ekajati using any additional devices, and this will lead to an increase in the size and complexity of the installation.The technical result of the invention increase the efficiency of the process of neutralization of toxic waste, reducing the overall dimensions of the installation.The technical result is achieved in that the combustion chamber is proposed facility completed a three-zone and equipped with jet nozzles for water, placed in the nozzle liner concentrically around the critical-section-side extending part; in addition, when moving from the first zone to the second, at the outlet of the second zone of the combustion chamber is a heat exchanger-the heat exchanger coaxially with the main camera, fulfilling the role of the third zone. Shirt heat exchanger are the input channels of the primary air and waste.The drawing shows the installation of thermal treatment.The installation consists of a system of supplying additional fuel, air, waste 1, valve 2 extra fuel, air 3, the primary air 4 waste 5, the nozzle head 6, the igniter 7 with a candle 8 ignition, combustion chamber 9, consisting of zones I and II, nozzle liner 10, line 11 water supply valve 12, the plate 13 with the throttle the first liner has a hole 17 for supplying water to volume II-th zone.Installation of waste treatment works as follows.After the filing of a switch-on signal is opening valves 2 extra fuel, air 3 and 4 and is used to supply them into the main chamber 9 of the combustion chamber of the igniter 7. Simultaneously, a voltage is applied to the ignition plug 8 plug, mounted on the igniter 7, resulting in the ignition of the fuel-air mixture in the chamber of the igniter 7 and the emission of high-temperature products of combustion with air in the I-th zone of the combustion chamber 9 ignite, forming a stable combustion front. Setting out on a stationary thermal regime, and, thus, ready to work. After this command is issued on the opening of the valves waste water from 12 to 5 and, from that moment begins the process of neutralization. In the heated volume of the combustion chamber 9 through the nozzle head 6 pneumatic atomization serves toxic waste, subject to neutralization, while the combustion is carried out at an average volume ratio of excess oxidant 1,2 1,4 and temperature, the maximum thermodynamically possible at a given ratio of components. At lower temperatures the products sharans toxic substances burns (decomposes) in the I-th zone, as the combustion products formed at the same time, contain N, CO, CO2, unburnt substance and 30-70% of the Halogens and hydrogen halides that you want to capture. The combustion products from the I-th zone of the combustion chamber 9 through to allow the liner 10 are in the II-th zone. Concurrently, the highways supply 11 through the jet nozzles 17 water, which, interacting with high-speed, high-temperature gas stream, rasplivaetsa, providing conditions for rapid and uniform evaporation of the water. When the last evaporation temperature of the gases is reduced to 500aboutC. Halogen-free and halogenated contained in the exhaust gases react with water with the formation of haloge - novogorodnaya acid and thus linked. Unburned products in the II-th zone continue to oxidize to simpler substances (N2, CO, CO2). Of the II-th zone of the combustion products through the throttle plate 13 into the heat exchanger-the heat exchanger 14, which performs the role of the III-th zone, where the temperature due to heat transfer is even more reduced to 300-400aboutC.The heat exchanger recovers heat of exhaust gases by preheating the primary air and waste before they arrive at the I-th area chamber 9 sharnirnyy. The temperature decrease in the II-th zone, inter alia, provides favorable thermal conditions of the heat exchanger, and therefore the durability of operation. At the end of the process of neutralization off installation is in the reverse order. 1. INSTALLATION FOR implementing the METHOD of THERMAL treatment POLYHALOGENATED HYDROCARBON containing feed system additional fuel, waste and air, a combustion chamber, a steam spray nozzle waste, additional fuel injectors, throttle plate with a hole, characterized in that the combustion chamber is made of three-phase and equipped with jet nozzles for water, performed in the nozzle liner concentrically around the critical section from the expanding portion when moving from the first zone of the second camera, and the output from the second zone of the combustion chamber is a heat exchanger-the heat exchanger coaxially with the main camera.2. Installation under item 1, characterized in that shirt heat exchanger are the input channels of the primary air and waste.
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