SU983384A1 - Apparatus for heat neutralizing of waste water - Google Patents

Description

The invention relates to chemical engineering, and in particular to devices for thermal disposal of wastewater from chemical plants contaminated with organic and mineral impurities. 5

A device for the thermal treatment of wastewater containing a cooled vertical cylindrical chamber with burner devices and nozzles for supplying wastewater, ¹⁰ pinch, miner-collector and gas duct. To remove the salt melt in the solid state, it is equipped with a melt cooling table made rotating with a fixed knife C 1]. ^,5

The disadvantages of this device are the location of the flue and the piggy bank of salt and estrus melting almost at the same level, and the melt cooler is „outside.

Due to the draft created by the smoke exhauster, rarefaction is created in the piggy bank, as a result of which the outside air is sucked in through the estrus, cooling the estrus and salt in it. At the same time, salts harden, which prevents their continuous release.

In existing installations, in order to avoid leakage of outside air, estrus is drowned out with a refractory mixture, and only after the accumulation of a certain amount of molten salt has accumulated, the plug is knocked out.

The presence of a plug, periodically knocked out and restored again in heat, requires manual labor and does not provide continuous release of molten salts. In addition, additional material is spent on the plug, the operation of the installation is complicated.

The aim of the invention is to provide continuous removal of salts, in the solid state.

The goal is achieved in that in a device for thermal disposal of wastewater containing a cooled vertical cylindrical chamber with burner devices and nozzles for supplying wastewater, pinch, a piggy bank with a notch, a gas duct and a table-cooler of salt melt, made with a rotating fixed knife, the melt cooler table is located in the recess of the mine-deposit box under pinch, and the hinge is mounted in the tap hole

Due to the high temperature and excess air, the organic matter burns out, the salts melt and, as a result of the centrifugal effect, are thrown onto the cooled walls of the cylindrical chamber, flow down and through pinch 2 they fall on a table-cooler 5 of salt fusion cooled by circulating water. Here is the salt crystallizer.

Placing the melt cooler table in the mine-digger of the furnace under the pinch ensures the flow of salt from the pinch directly to the table cooler, cooled by circulating water, and the crystallization of salts.

The hinged shutter provides a continuous exit of hardened lumpy waste from the furnace * into replaceable containers.

Lowering the location of the melt cooling cooler eliminates the contact of the high temperature flow with the table and the possible heating and melting of crystallized salt.

The drawing shows a device for thermal disposal of wastewater.

The device comprises a cooled cylindrical chamber 1 with burner devices and wastewater supply devices, pinch 2, gas duct 3, storage mine 4, in which is placed directly below the pinch table a salt-cooler 5 for fusion of salts with a fixed knife 6, and a notch 7 for ³⁵ start hardened pieces of salt, and estrus is equipped with a hinged flap. 8.

The device operates as follows40.

Through the burner devices placed on the cylindrical chamber 1, the fuel and air are supplied with a corresponding excess coefficient of the latter. ⁴⁵

Due to the combustion of fuel, the furnace is heated to 1000-1200 C.

Then, wastewater contaminated with organic and mineral materials for ⁵⁰ months is fed into the preheated furnace through nozzles.

They are cut off, fixed with a fixed knife 6, and through a notch 7 · with a shutter 8 pivotally fixed at its end, are removed from the furnace into a replaceable container.

Flue gases due to the vacuum created by the smoke exhauster through the gas duct 3 are removed from the furnace and then fed to the heat recovery equipment and the chimney.

The proposed device allows for the continuous exit of salts from the furnace, bypassing the operations of periodic sealing and depressurization of the tap hole, which, in existing installations, are carried out several times per shift and are labor-intensive manual operations.

Claims (1)

398 vertical cylindrical chamber with burner and hearth burners | and sewage, clamping, mine-digger with tap-hole, gas duct and melt-salt cooler table, made rotatable with fixed knife, melt-cooler table located in recess of digger shaft under clamp, and in the tap hole there is a hinged damper. Placing the table-cooler of the melt in the furnace shaft under the pinch ensures the supply of the molten salt from the pinch directly to the table cooler cooled by the circulating water and the crystallization of salts. The hinged flap provides a continuous exit of solidified lumpy waste from the furnaces of the removable container. . Lowering the level of the melting table cooler eliminates the contact of the high-temperature flow with the table and the possible heating and melting of the salt of the thalized salt. The drawing shows a device for the thermal disposal of wastewater. The device contains a cooled cylindrical chamber 1 with burner devices and devices for supplying sewage, pinch 2, gas duct 3, a mine-digger in which the table cooler 5 of the floating salts with a fixed knife 6 is placed directly under the pinch, and a tap 7 for discharging hardened pieces of salt, and the chute is fitted with a hinged flap .8. The device works as follows. Through the burners located on the cylindrical chamber 1, fuel and air are supplied with the corresponding coefficient of excess of the latter. Due to the combustion of the fuel, the furnace is heated up to 1000-1200 ° C. Then, the waste water is supplied to the heated furnace through nozzles, which is contaminated. organic and mineral impurities. A Due to the high temperature and excess air, the organics burn out, the salts melt and, as a result of the centrifugal effect, are thrown onto the cooled walls of the cylindrical chamber, flow down and through the clamp 2 fall onto the rotary cooling of the fusion salt salts. Here, the salts crystallize, are cut off by a fixed knife 6, and through a tap-hole with a hinged 8 fixed at its end, the flap 8 is removed from the furnace to a replaceable container. The flue gases due to the dilution created by the exhaust fan are removed from the furnace through the flue 3 and are then supplied to the heat recovery equipment and to the chimney. The proposed device allows for the continuous release of salts from the furnace, the operation of periodic sealing and depressurization of the tap-hole, which, in existing installations are carried out several times a shift and are labor-consuming manual operations. The invention The device for thermal disposal of wastewater, containing a cooled vertical cylindrical chamber with burners and nozzles for supplying wastewater, pinch, mine digger from the summer-. Coy, gas duct and the table of the molten salts cooler, made rotatable with a fixed knife, characterized in that, in order to ensure the continuous removal of salts in the solid state, the table cooler of the melt is placed in the recess of the digging chamber under the clamp, and a hinge is mounted in the tap hole flap. Sources of information taken into account during the examination 1. Bernadiner M.N., Novoseltsev V.N., et al. A complex installation of firing processing is toxic to liquid industrial waste. Industrial Energy, 1980, № 6, p. 16-20 (protoforce for wastewater supply Burner device