SU1375905A1 - Apparatus for thermal decontamination of waste gases - Google Patents

Abstract

The invention can be used in production, where waste gases containing combustible components are formed, for example, in food and chemical. The purpose of the invention is to simplify the design and operation of the device. The device comprises a housing 1 with a partition wall 4 2, gas distribution grids 3, chambers with gas-permeable nozzles 4 connected to a cylindrical afterburning chamber 5 channels for the passage of gases located tangentially to the inner surface of the afterburning chamber, switching valves 11. The afterburning chamber 5 is equipped with coaxially mounted burners 6 o In the middle of the afterburning chamber, there is a transverse diaphragm 7, which promotes intensive mixing of waste gases, through which it passes cylindrically with and the insert 8 is open at its ends and mounted coaxially with the afterburning chamber to avoid overflow of gases from one chamber with a nozzle in another high-temperature zone of the mine. The implementation of the afterburning chamber 5 of the cylindrical allows eliminating stagnant zones and provides intensive mixing of gases about 4 sludge. f (L with ch alo about a number

Description

The invention relates to devices for the thermal disposal of waste gases and can be used in waste disposal zones, where waste gases containing combustible components, for example, food, chemical and others, are generated.

The purpose of the invention is to simplify the design and operation of a device for the thermal disposal of waste gases.

FIG. 1 shows a device for the thermal disposal of waste gases in FIG. 2 shows section A-A in FIG. 1j in FIG. 3 shows a section BB in FIG. one; in fig. 4 - the same, option.

The device comprises a housing 1, a dividing partition 2, dividing the volume of the housing into two parts, gas distribution grids 3, chambers with gas permeable nozzles 4. Above the latter, there is a afterburning cylindrical chamber 5 with coaxially mounted burners 6. In the middle: the afterburning chamber 5 is located The river diaphragm 7, through which the cylindrical insert 8 passes, is open at its ends and mounted coaxially with the afterburning chamber. Cameras with gas-permeable nozzles 4 communicate with the camera 5 afterburners

9 for the passage of gases located tangentially to the inner surface of the afterburner. Both halves of the housing are connected to the pipeline 10 waste gases through the switching valves 11.

The device works as follows.

Included in the burner 6. Instead of waste gases through pipelines

10 through the chamber with gas-permeable nozzles 4 pass air. On-.;; the gas movement control is established by switching valves 11. In this case, the air enters

in the lower part of one of the chambers with a gas-permeable nozzle, passes through the gas distribution grid 3 and the chamber with a gas-permeable nozzle

4 and through channel 9 enters the chamber

5 burning, then directed to the root of the torch of the burner 6 and the open end of the cylindrical insert 8, inside which the air is mixed

with combustion products entering

from the burners 6. Through the opposite end of the insert 8, the mixture of air with the combustion products is directed to

to the torch root of the opposite burner and, not changing the direction of rotation around the axis of the afterburner chamber 5, through the gas passage channel 9 is directed to the second chamber with the gas Q Permeable nozzle.

With the passage of high-temperature gases, a portion of the nozzle is heated to an operating temperature of 900-1000 ° C. Upon completion of heating up 5 of the charge, determined by the gas temperature, switching the valves 11 into the device serves waste gases in the opposite direction to the air movement. The passage through the heated nozzle 4, the gases are heated, when interacting with the high-temperature products of combustion from the burners 6, the burning of the harmful components of the gases occurs. Then, the high-temperature mixture is directed to the second (in the direction of gas movement) chamber with a gas-permeable nozzle 4, where, cooling, it heats the nozzle and is discharged through the gas distribution valve.

0, the grate 3 via the lines 10, while the second gas-permeable nozzle is cooled. As the nozzle is cooled by means of the valves 11, the direction of movement of the gases is changed to the opposite. If there are significant quantities of flame-retardant components in the waste gases, the connecting channels 9 between the chambers with gas-permeable nozzles 4 and the firing chamber 5 can be located at one of the side walls of the housing 1.

The implementation of the afterburning chamber of the cy- -: lindrical chamber with tangential channels for the passage of gases allows

with exclude stagnant zones, provides intensive mixing of gases.

Equipping the afterburner chamber with a diaphragm allows organizing intensive mixing of waste gases before and after interaction with high-temperature products of the mountain coming from the burners.

Equipping the afterburning chamber with a coaxially mounted cylindrical insert, open from the ends and passing through the diaphragm, eliminates the flow of gases from one chamber with a nozzle to another besides the high-temperature zones created by the burner

five

devices, provides intensive mixing of gases and directional movement to high-temperature zones near the burners and, as a result, effective afterburning of harmful components,

In the design of the device for thermal decontamination of waste gases, intensive mixing of waste gases at all stages of the process and their ordered directional movement to maximum temperature zones is provided, which allows reducing the number of burners to a minimum and does not require controlling their performance over a wide range. the high completeness of the disposal of waste gases greatly simplifies the design and operation of the device.

rmula

the invention

A device for thermal neutralization of waste gases, comprising a housing, a dividing partition, chambers with gas-permeable nozzles, connected by channels to the afterburning chamber equipped with coaxially installed

new burners, and switching valves, characterized in that, in order to simplify the design and operation of the device, the afterburner chamber is filled with a cylindrical chamber and equipped with a diaphragm and a coaxially mounted cylindrical insert, open at the ends and passing through the diaphragm, and the channels for the passage of gases are tan-

gentially to the inner surface of the afterburner.

FIG. 2

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B 9 FigM

Claims (1)

Claim A device for thermal neutralization of waste gases, comprising a housing, a separation wall, chambers with gas permeable nozzles connected by channels to an afterburner equipped with coaxially mounted burners, and switching valves, characterized in that, in order to simplify the design and operation of the device, the afterburner is made cylindrical and equipped with a diaphragm and a coaxially mounted cylindrical insert open from the ends and passing through the diaphragm, and the channels for the passage of gases are made tang cially to the inner surface of the afterburning chamber. Aa Bb Figure 2 Figure 3 Bb Fig. H I