KR860008257A - Annular nozzles and processes for their use - Google Patents

Abstract

No content

Description

Annular nozzles and processes for their use

Since this is an open matter, no full text was included.

1 is a partial longitudinal cross sectional view of a burner nozzle made in accordance with the principles of the present invention;

FIG. 2 is a cross sectional view taken along line A-A of FIG. 1 showing an embodiment of a burner.

3 is a partial longitudinal cross-sectional view of another preferred nozzle made in accordance with the principles of the present invention.

* Explanation of symbols for main parts of the drawings

DESCRIPTION OF SYMBOLS 1: Central conduit, 2: 2nd annular conduit, 3: 2nd annular conduit, 4, 5, 6: passage, 9: nozzle diffuser, 10: burner nozzle, 11: orifice, 12: cooling jacket, 13: inlet 14: outlet, 15, 16 inlet, 18: distribution chamber, 30: burner nozzle, 32a: first segment, 33: diffuser, 34: fastener

Claims (10)

In a process for producing a gas mixture containing hydrogen monoxide and carbon by partial oxidation of a slurry of solid carbonaceous fuel in a fluid transport material mixed with a free oxygen containing gas in a free-flow hollow reactor, the burner nozzles A coaxially spaced second and third conduit surrounding a central conduit forming a center between the second and third conduits and a second annular passageway between the second and third conduits; The third passage is closed at their upflow ends, which are provided for the gas transfer flow and the slurry transfer flow, and is also developed at the downflow discharge ports, the burner with an outlet discharge velocity of approximately 23 m / s to sound speed. Passing the first gas flow containing free oxygen formed by the central conduit into the first passage, and having an exit discharge velocity of approximately 0.3 to 15 m / s. Simultaneously passing the oxygen-containing second gas stream through the third annular passage and passing the slurry flow through the second annular passage at an outlet discharge rate of approximately 0.3 to 15 m / s, and finely branched solids. The slurry flow and the first second gas by the shear action of the first and second gas streams and the impact of the slurry on the converging surface to produce a uniformly dispersed sprayed composite of the carbonaceous fuel and the fluid transport material and the free oxygen containing gas. Mixing the flows to impinge the slurry flow on the converging side of the nozzle diffuser and exit the mixture with an acceleration of approximately 30 m / s to a speed of sound to further spray the mixture before entering the reactor. Passing through an orifice and forming a partially oxidized gas mixture containing hydrogen monoxide and carbon; A process for producing a gas mixture for use of an annular nozzle, characterized in that it comprises a step of reacting the mixture in a condenser. 2. A process as claimed in claim 1 wherein said diffuser is a continuous converging section of a third conduit connected to said outlet orifice. The process of claim 1 wherein the diffuser is a separate plug that is held in position by a third conduit having an outlet orifice extending through the plug. The method of claim 1, wherein the second passage includes an extended first segment and a second annular segment, the first segment extending from the slurry feed inlet and in turn A point converged to the second segment extending to the discharge port, the cross section of the first segment being substantially wider than the cross section of the second segment, and thus converging to internal connection with the second segment Providing a slurry flow pressure in the first segment that is generally uniform throughout the annular zone of the first segment. 5. The slurry flow of claim 4, wherein the pressure drop for the slurry flow from the slurry transfer inlet to the point where the first segment is internally bound with the second segment is such that the slurry flows from the internal connection point to the outlet port of the second segment. A process for producing a gas mixture for use of an annular nozzle, characterized in that less than about 20 percent of the pressure drop over the nozzle. A burner nozzle for a free flow hollow reactor in which a solid carbon fuel slurry in a fluid transport material mixed with a free oxygen containing gas is used for producing a gas containing hydrogen monoxide and carbon by a partial oxidation process, wherein the free oxygen containing gas flow A central conduit forming a central passage for conveying the second conduit spaced apart from a common axis to form a second annular passageway between the central and second conduits for conveying the slurry flow; To form a third annular passageway between the second and third conduits so that the third conduits spaced coaxially, and the inlets therein, are closed at their upflow ends provided for the gas conveyance flow and the slurry conveyance flow, First, second and third passages developed in a downward flow discharge port formed by the ends of the central, second and third conduits And: a nozzle diffuser having a converging surface on which the slurry flow is impinged upon and positioned within the parallel positioning port flow from the outlets of the central and second passages and located close to the end of the third conduit. An outlet orifice which is conveyed with acceleration into the reactor and is internally bound with the diffuser and extends through the central and second conduits comprising a first segment and a second segment through the mixture. A second passage formed, wherein the first segment extends from the slurry conveyance inlet and converges into a second cementum, which in turn extends to its outlet formed by the central and end portions of the second conduit; The cross-sectional area of one segment is generally wider than the cross-sectional area of the second segment and is therefore converging so that Characterized in that to provide the slurry flow pressure in the first Special cement a first substantially uniform throughout the annular area of the cement signature in the access point Loose and hollow reaction appointed burner nozzle. 7. The burner nozzle of claim 6, wherein the diffuser is a continuous converging cross section of a third conduit connected to the outlet orifice. 7. The burner nozzle of claim 6 wherein the diffuser is a separate plug that is held in position by a third conduit having an outlet orifice extending through the plug. An improved plug resistance nozzle for mixing slurry with finely divided solids in a conveying fluid with a gas stream, comprising: a central conduit for conveying a gas stream and a second conduit and a central conduit for conveying a slurry stream; A second common conduit spaced apart forming a second annular passageway between the conduits and a third common conduit spaced apart forming a third annular passageway between the second conduit and the third conduit for transferring gas flow; A first inlet in which the inlet therein is closed at their upflow end, which is provided for gas delivery and slurry delivery flow and is also open at the downstream flow outlet port formed by the ends of the central, second and third conduits; And a second passage and a third passage, the second passage including a first segment and a second segment and formed by the central and second conduits. Wherein the first segment extends from the slurry conveyance inlet and converges into the second segment, which in turn extends to the discharge port formed by the central and second conduit ends, wherein the first segment The cross-sectional area of is substantially wider than the cross-sectional area of the second segment and is therefore converged so that the slurry flow pressure in the first segment is uniform throughout the annular zone of the first segment at the point that is internally coupled with the second segment. Improved plug resistance nozzle, characterized in that to provide. The burner nozzle of claim 6,7,8 or 9, wherein the cross section of the first and second segments is from a slurry transfer inlet, the point at which the first segment is internally bound. Burner nozzles proportional to provide a pressure drop for the slurry flow to a point that is internally bound with a second segment that is approximately 20 percent or less of the pressure drop for the slurry flow to the discharge port. ※ Note: The disclosure is based on the initial application.