Wet combustion of waste liquors

Claim 2

APPARATUS FOR THE WET COMBUSTION OF A WASTE LIQUORS CONTAINING COMBUSTIBLE COMPONENTS, COMPRISING A GENERALLY VERTICAL SINGLE PRESSURE VESSEL DIVIDED INTO A LOWER COMPARTMENT AND AN UPPER COMPARTMENT BY AN IMPERFORATE SUBSTANTIALLY HORIZONAL WALL, AN INLET PIPE NEAR THE LOWER END OF THE LOWER COMPARTMENT FOR CONTINUOUSLY ADMITTING A MIXTURE OF WASTE LIQUOR AND AIR UNDER PRESSURE TO THE LOWER END OF THE LOWER COMPARTMENT, A GENERALLY VERTICAL TRANSFER PIPE DISPOSED AXIALLY IN THE UPPER COMPARTMENT AND COMMUNICATING AT ITS LOWER END WITH THE UPPER END OF THE LOWER COMPARTMENT THROUGH AN APERTURE IN THE SAID HORIZONAL WALL, THE UPPER END OF THE TRANSFER PIPE TERMINATING NEAR THE UPPER END OF THE UPPER COMPARTMENT AND BEING CONNECTED AT ITS UPPER END TO A GASLIQUID SEPARATING DEVICE WHICH IS CAPABLE OF SUBSTANTIALLY SEPARATING THE GASEOUS AND LIQUID PHASES PASSING UPWARDLY THROUGH THE TRANSFER PIPE, THE SEPARATED LIQUID PHASE BEING PERMITTED TO FLOW CONTINUOUSLY DOWNWARDLY IN THE SAID UPPER COMPARTMENT, A GAS DISCHARGE VENT IN THE PRESSURE VESSEL NEAR THE UPPER END IF THE UPPER COMPARTMENT THROUGH WHICH VENT GAS CONTINUOUSLY CAN DISCHARGE, A SECOND INLET PIPE WHICH COMMUNICATES DIRECTLY WITH A DISTURIBUTING DEVICE WITHIN AND NEAR THE LOWER END OF THE SAID UPPER COMPARTMENT AND THROUGH WHICH AIR UNDER PRESSURE IS CONTINUOUSLY ADMITTED TO

Claim 3

Apparatus according to claim 1 including a suitable device for regulating the substantially continuous discharge of liquor from the liquor discharge outlet near the lower end of the said upper compartment whereby the level of liquid in the upper compartment can be maintained at a pre-determined level.

Claim 4

Apparatus according to claim 1 and wherein the surfaces dividing the upper and lower compartments, such dividing surfaces being constituted by the imperforate substantially horizontal wall and the axially disposed vertical transfer pipe, are of sufficient heat conductivity as to permit indirect heat transfer therethrough from the contents of the lower compartment to the contents of the upper compartment or vice-versa so as to minimize temperature differences between the contents of the said compartments.

Claim 5

Apparatus for the wet combustion of waste liquorS containing combustible components, comprising a generally vertical single pressure vessel divided into a lower compartment and an upper compartment by an imperforate substantially horizontal wall, an inlet pipe near the lower end of the lower compartment for continuously admitting a mixture of waste liquor and air under pressure to the lower end of the lower compartment, a generally vertical transfer pipe disposed axially in the upper compartment and communicating at its lower end with the upper end of the lower compartment through an aperture in the said horizontal wall, the upper end of the transfer pipe terminating near the upper end of the upper compartment and being connected at its upper end to a gas-liquid separating device which is capable of substantially separating the gaseous and liquid phases passing upwardly through the transfer pipe, the separated liquid phase being permitted to flow continuously downwardly in the said upper compartment; a gas discharge vent in the pressure vessel near the upper end of the upper compartment through which vent gas continuously can discharge; a second inlet pipe which communicates directly with a distributing device within and near the lower end of the said upper compartment and through which air under pressure is continuously admitted to the upper compartment and passes upwardly through the liquid therein, a liquor discharge outlet near the lower end of the said upper compartment, enabling a continuous discharge of such liquor; and a series of vertically spaced perforated baffles extending substantially horizontally across the upper compartment.

Claim 6

Apparatus for the wet combustion of waste liquorS containing combustible components, comprising a generally vertical single pressure vessel divided into a lower compartment and an upper compartment by an imperforate substantially horizontal wall, an inlet pipe near the lower end of the lower compartment for continuously admitting a mixture of waste liquor and air under pressure to the lower end of the lower compartment, a generally vertical transfer pipe disposed axially in the upper compartment and communicating at its lower end with the upper end of the lower compartment through an aperture in the said horizontal wall, the upper end of the transfer pipe terminating near the upper end of the upper compartment and being connected at its upper end to a gas-liquid separating device which is capable of substantially separating the gaseous and liquid phases passing upwardly through the transfer pipe, the separated liquid phase being permitted to flow continuously downwardly in the said upper compartment; a gas discharge vent in the pressure vessel near the upper end of the upper compartment through which vent gas continuously can discharge; a second inlet pipe which communicates directly with a distributing device within and near the lower end of the said upper compartment and through which air under pressure is continuously admitted to the upper compartment and passes upwardly through the liquid therein, a liquor discharge outlet near the lower end of the said upper compartment, enabling a continuous discharge of such liquor; and a series of vertically spaced perforated baffles extending substantially horizontally across the upper compartment.

Claim 7

Apparatus for the wet combustion of waste liquors containing combustible componenets, comprising a generally vertical single pressure vessel divided into a lower compartment and an upper compartment by an imperforate substantially horizontal wall, an inlet pipe near the lower end of the lower compartment for continuously admitting a mixture of waste liquor and air under pressure to the lower end of the lower compartment, a generally vertical transfer pipe disposed axially in the upper compartment and communicating at its lower end with the upper end of the lower compartment through an aperture in the said horizontal wall, the upper end of the transfer pipe terminating near the upper end of the upper compartment and being connected at its upper end to a gas-liquid separating device which is capable of substantially separating the gaseous and liquid phases passing upwardly through the transfer pipe, the separated liquid phase being permitted to flow continuously downwardly in the said upper compartment; a gas discharge vent in the pressure vessel near the upper end of the upper compartment through which vent gas continuously can discharge; a second inlet pipe which communicates directly with a distributing device within and near the lower end of the said upper compartment and through which air under pressure is continuously admitted to the upper compartment and passes upwardly through the liquid therein, a liquor discharge outlet near the lower end of the said upper compartment, enabling a continuous discharge of such liquor; said separating device comprising at least one tubular member connected to the upper end of the transfer pipe and extending outwardly to near the wall of the pressure vessel and its outer end being disposed so as to distribute the liquid phase substantially tangentially and in proximity to the said wall.

Claim 8

Apparatus for the wet combustion of waste liquors containing combustible componenets, comprising a generally vertical single pressure vessel divided into a lower compartment and an upper compartment by an imperforate substantially horizontal wall, an inlet pipe near the lower end of the lower compartment for continuously admitting a mixture of waste liquor and air under pressure to the lower end of the lower compartment, a generally vertical transfer pipe disposed axially in the upper compartment and communicating at its lower end with the upper end of the lower compartment through an aperture in the said horizontal wall, the upper end of the transfer pipe terminating near the upper end of the upper compartment and being connected at its upper end to a gas-liquid separating device which is capable of substantially separating the gaseous and liquid phases passing upwardly through the transfer pipe, the separated liquid phase being permitted to flow continuously downwardly in the said upper compartment; a gas discharge vent in the pressure vessel near the upper end of the upper compartment through which vent gas continuously can discharge; a second inlet pipe which communicates directly with a distributing device within and near the lower end of the said upper compartment and through which air under pressure is continuously admitted to the upper compartment and passes upwardly through the liquid therein, a liquor discharge outlet near the lower end of the said upper compartment, enabling a continuous discharge of such liquor; said separating device comprising at least one tubular member connected to the upper end of the transfer pipe and extending outwardly to near the wall of the pressure vessel and its outer end being disposed so as to distribute the liquid phase substantially tangentially and in proximity to the said wall.

Claim 9

Apparatus for the wet combustion of waste liquors containing combustible components, comprising a generally vertical single pressure vessel divided into a lower compartment and an upper compartment by an imperforate substantially horizontal wall, an inlet pipe near the lower end of the lower compartment for continuously admitting a mixture of waste liquor and air under pressure to the lower end of the lower compartment, a generally vertical transfer pipe disposed axially in the upper compartment and communicating at its lower end with the upper end of the lower compartment through an aperture in the said horizontal wall, the upper end of the transfer pipe terminating near the upper end of the upper compartment and being connected at its upper end to a gas-liquid separating device which is capable of substantially separating the gaseous and liquid phases passing upwardly through the transfer pipe, the separated liquid phase being permitted to flow continuously downwardly in the said upper compartment; a gas discharge vent in the pressure vessel near the upper end of the upper compartment through which vent gas continuously can discharge; a second inlet pipe which communicates directly with a distributing device within and near the lower end of the said upper compartment and through which air under pressure is continuously admitted to the upper compartment and passes upwardly through the liquid therein, and a liquor discharge outlet near the lower end of the said upper compartment, enabling a continuous discharge of such liquor; said distributing device near the lower end of the upper compartment comprises a series of pipes having perforations in their upper surfaces, some of the said pipes being arranged circumferentially and some being arranged radially.

Claim 10

Apparatus for the wet combustion of waste liquors containing combustible components, comprising a generally vertical single pressure vessel divided into a lower compartment and an upper compartment by an imperforate substantially horizontal wall, an inlet pipe near the lower end of the lower compartment for continuously admitting a mixture of waste liquor and air under pressure to the lower end of the lower compartment, a generally vertical transfer pipe disposed axially in the upper compartment and communicating at its lower end with the upper end of the lower compartment through an aperture in the said horizontal wall, the upper end of the transfer pipe terminating near the upper end of the upper compartment and being connected at its upper end to a gas-liquid separating device which is capable of substantially separating the gaseous and liquid phases passing upwardly through the transfer pipe, the separated liquid phase being permitted to flow continuously downwardly in the said upper compartment; a gas discharge vent in the pressure vessel near the upper end of the upper compartment through which vent gas continuously can discharge; a second inlet pipe which communicates directly with a distributing device within and near the lower end of the said upper compartment and through which air under pressure is continuously admitted to the upper compartment and passes upwardly through the liquid therein, and a liquor discharge outlet near the lower end of the said upper compartment, enabling a continuous discharge of such liquor; said distributing device near the lower end of the upper compartment comprises a series of pipes having perforations in their upper surfaces, some of the said pipes being arranged circumferentially and some being arranged radially.