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.

 

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