DE202017007112U1 - Burner head for arrangement in the head of a carburettor for the primary oxidation of gaseous gasification substances in carburettors according to the principle of autothermal reforming (ATR) or non-catalytic partial oxidation (POX) - Google Patents

Abstract

Burner head (1) for arrangement in the head of a carburetor for the primary oxidation of gaseous gasification substances in carburettors according to the principle of autothermal reforming (ATR) or non-catalytic partial oxidation (POX), wherein the burner head (1) at least one first supply (4) with first nozzles ( 7) for gasification agent (2) and a second feed (5) for gasification substance (3) and the jets of the gasification agent (2) in the reaction chamber (6) of the gasifier flames of the gasification agent (2) form, characterized
in that the first feed (4) is a pipe pointing in the direction of the reaction space (6) as a first pipe with a nozzle head with a plurality of first nozzles (7) for gasification means (2),
- That the axes of the first nozzle (7) and the axis of the burner head (1) in the direction of the reaction space (6) at an angle equal to or less than 90 °, so that gasification means (2) in different directions away from the burner axis in the reaction space ( 6) and the jets of the gasifying agent (2) form a circular conical space in the reaction space (6) and do not touch or overlap one another,
that a region of the first tube is surrounded by a second tube, wherein the end pointing in the direction of the reaction space (6) is connected to the first tube, so that a depression for cooling is present,
- That the second tube in a third tube with formation of the second supply (5) for gasification material (3) is arranged spaced, wherein in the direction of the reaction space (6) facing and spaced from each other arranged end portions of the second tube and the third tube form an annular gap nozzle .
- That the first nozzle (7) the second supply (5) for gasification substance (3) projecting in the direction of the reaction space (4) and
- That the first supply (4) has a cooling protection tube (14) for gasification means (2) so that the cooling protection tube (14) is spaced from the inner wall of the first supply (4), and / or
- That the second supply (5) for gasification material (3) has a cooling protection tube (15) for gasification substance (3) so that the cooling protection tube (15) in the second feed (5) is arranged.

Description

The invention relates to burner heads for arrangement in the head of a carburetor for primary oxidation of gaseous gasification in carburetors according to the principle of autothermal reforming (ATR) or non-catalytic partial oxidation (POX), wherein the burner head at least a first supply with first nozzles for gasification agent and a second supply for Gasification material has and form the rays of the gasification agent in the reaction chamber of the gasifier flames of the gasification agent.

Gaseous gasification material, such as natural gas or associated gas, is partially oxidized in gasification reactors in which it is chemically reacted with gasification agent at temperatures up to 1,500 ° C and pressures up to 100 bar. In the non-catalytic process of partial oxidation (POX mode), which takes place at temperatures up to 1,500 ° C, mainly oxygen and subordinate water vapor are used as the gasification agent. In contrast, in the catalytically assisted process of auto-reforming (ATR mode) in which the partial oxidation is carried out at only about 1200 ° C, the water vapor content is greatly increased. The product gases of the partial oxidation, the so-called gasification gases, either continue to be used directly (non-catalytic POX mode) or catalytically reformed (ATR mode). The temperatures refer to the product gases at the outlet of the gasification reactor (POX mode) or the inlet into the catalyst (ATR mode).

A partial oxidation is known to be carried out with one or a few diffusion burners at the top of the gasification reactor. In front of the burners burner flames are formed with temperatures well above 2000 ° C, where the reactants mix and react chemically. The burner flames produce a strong axial recirculation flow according to the reactor principle of a stirred tank reactor. The stirred tank principle has the advantage that the distance between the flames and the inner peripheral walls of the gasification reactor is sufficiently large so that they are not thermally overstressed. On the other hand, in the gasification reactor, outside of the flames, zones with significantly lower reaction conversion and zones in which the gaseous gasification material dwell without rapid contact with the gasification agent form (dead zones). Thus, only a small part of the gasification space is used effectively, which means that the major part of the gasification space is not required for the reaction conversion or, as in the dead areas, even harmful, since soot is formed there. The size of the gasification reactors is several times the reaction technically required, so that the investment costs are very high.

The burner flames are widened in the simplest case, by swirled by appropriate design of the outlet openings and installation of swirl devices for the effluent gasification agent and the outgassing gasification these tangentially and flow outward. Such solutions with swirl devices in the burner central channel and burner ring channel for swirling and widening the flow of the gasification agent and the gasification substance are, for example, by the documents US 4,704,971 . DE 31 23 866 A1 . WO 01/081509 A . WO 02/42686 A1 . US 2004/0067461 A1 . WO 2005/017411 A1 . US 2007/0134608 A1 . US 7,267,809 B2 and WO 2011/095274 A2 known.

Surface trained burner, so-called burner blocks, with at least three burners are for example from the publications EP 1 182 181 A1 . DE 37 26 875 C2 and EP 1 717 295 B1 known.

The publication EP 1 182 181 A1 discloses a premix burner block for partial oxidation processes. The proposal is not suitable for gasification reactors which are operated at high pressures, since the required, very high flow rates can not be realized at the outlet from the burner block under increased pressures. Furthermore, the burner block for carburetor temperatures of less than 1400 ° C is limited. These temperatures are usually exceeded in carburetors.

The publication DE 37 26 875 C2 includes a water-cooled multi-nozzle burner in which the reactants in the form of the gasification gas natural gas and the exothermic gasifying agent, leading through cooling water spaces are separated. This solution is not suitable for the technical implementation of gasification burners requiring the high preheating of the gasifying agent to about 400 ° C and the gasification material to about 650 ° C. Due to the compactness of the bottom plate this would be destroyed quickly due to the high thermal stresses. Likewise, the longitudinal expansion of the non-cooled supply pipes can not be mechanically intercepted.

The publication EP 1 717 295 B1 describes a planar gasification injector for coal slurry and gasification agent in the form of oxygen. The areal distribution of the gasification substance and the admixture of oxygen on the cooled front panel are extremely expensive in terms of apparatus and operation. There are massive safety concerns over a pressurized oxygen chamber in which it can come at elevated temperatures (hot spots) to oxygen fires with the surrounding pressure-bearing metallic walls. This would be the case, for example, if one of the slurry injection pipes is disturbed in the flow and warms up by re-ignition into the oxygen pressure space. An elaborate temperature monitoring of the entire front panel in the oxygen pressure chamber is inevitable.

In the publication CN 202 080 879 U a burner is proposed in which the gasification oxygen is injected into the gasification reactor not in a central pipe nozzle but in an annular nozzle surrounded by cooled walls. The ring nozzle for oxygen is surrounded by a ring nozzle for gasification substance. However, the concentric ring arrangement allows only a small broadening of the burner flame, since at a greater extent of the burner rings, the uniform distribution of the reactants over the ring cross-section is no longer guaranteed and with a greater expansion of the burner rings, the circulation flow would move from outside to inside. The outside of the oxygen ring nozzle escaping gasification material flows in a lower radiant intensity in the reaction space. This leads to a greater dilution of the gasification material by mixing the surrounding product gases, which reduce the reaction rates with oxygen and the methane slip increases.

To fill the carburetor cross section with burner flames burner plates are known with multiple burners. Such solutions are for example in the document DE 10 2014 211 755 A1 as carburetor head and process for the partial oxidation of gaseous and liquid gasification material and in the document DE 10 2014 211 757 A1 described as a burner device for the partial oxidation of gaseous gasification material. The arrangements of the burner at the burner head and thus the distribution of the gasifying agent and the gasification substance should lead to a predominant piston flow in the carburetor interior. In the case of the burners, however, there is the possibility that the recirculation flows now form around the burner torches which are separated, which impair the desired piston flow and shift the principle of the stirred tank reactor to smaller scales. Behind each burner flame can form its own vortex path with little cross-mixing to the environment.

The specified in the protection claim 1 invention is based on the object, a burner head for a burner for a working according to the POX or ATR principle carburetor to provide the largest power units economically.

This object is achieved with the features listed in the protection claim 1.

The burner heads for arrangement in the head of a carburetor for the primary oxidation of gaseous gasification in carburetors according to the principle of autothermal reforming (ATR) or non-catalytic partial oxidation (POX), wherein the burner head has at least a first supply with first nozzles for gasification agent and a second feed for gasification material and the jets of the gasifying agent in the reaction space of the carburetor form flames of the gasifying agent are characterized in particular by the fact that the burner heads can be provided economically up to the largest power units.

For this purpose, the end region of the first supply is a nozzle head with a plurality of first nozzles for gasification agent. The nozzle head is located in the second supply for gasification substance. The axes of the first nozzles and the axis of the burner head in the direction of the reaction space at an angle equal to or less than 90 °, so that inject gas in different directions from the burner axis into the reaction space and spray the gases of the gasifying agent form a circular conical space in the reaction space and Do not touch or overlap each other. Furthermore, the first nozzles project beyond the second supply of gasification material in the direction of the reaction space.

The burner head advantageously makes it possible to use the reaction space of the carburetor to the greatest extent possible for the endothermic gasification reactions without any loss in the reaction conversion. The zone of primary oxidation is so widened that it covers the largest possible part of the cross section of the reaction space.

This is solved with at least one burner in the head of a carburetor according to the POX or ATR principle, which is equipped with the burner head. With the first gasifying agent nozzles and the gasifying agent annular gap nozzle, the gasifying agent and the gasifying agent are injected into the reaction space of the gasifier, the gases of the gasifying agent forming flames.

The burner head has the first supply of gasification agent, which is a central lance with a lance head. The lance with the lance head are arranged coaxially in the second supply of gasification substance. The lance head is designed as a nozzle head, the first nozzles for Has gasification means whose axes are arranged inclined to the burner head axis. Thus, gasification agent is injected from the burner head axis away with different directions in the reaction chamber so that the flames from the gasification agent do not touch or overlap each other. For this purpose, advantageously, the axes of the flames of the gasification agent can assume rotationally symmetrical movement from the burner axis. In addition, these form the circular cone-shaped space. The volume of the circular cone is more or less filled by the flames. The flames can be aligned only on the surface of the circular cone. They do not touch the pointing into the reaction chamber end face of the burner. The number and size of the first gasification agent nozzles on the cross-sectional areas of the nozzle orifices may advantageously be chosen such that the outer radius of the circular cone is from 30% to 80% of the diameter of the reaction space.

With gasification agent pulse streams, the flames of the gasifying agent can be defined in the length defined. Thus, the flow profile of the reaction chamber of the carburetor can be further defined. The number, size and orientation of the flames of the gasifying agent and, accordingly, the number, size and orientation of the first gasifying agent nozzles are determined according to the geometry of the reaction space and the available gas residence time. The outer flames of gasifying agent are aligned according to the contour of the nozzle head of the reaction chamber, wherein the axes of the first outer nozzles for gasifying agent can be inclined at an inclination angle respectively including 15 ° to 30 ° to the ceiling of the reaction space and thus to the end face of the burner head. Thus, the headspace of the reaction space is effectively used for the primary oxidation, dead zones with stationary circulation cells are reduced.

Advantageous embodiments of the invention are specified in claims 2-8.

The first nozzles for gasification are according to a development in the direction of the reaction chamber of the carburetor facing pipe sections at a bottom of the first feed, wherein in each case the interior of a pipe section is connected via an opening in the bottom to the first supply of gasification agent and the bottom and the pipe sections of the nozzle head are. The pipe section has the shape of a conic section in cross section. Furthermore, pipe sections are arranged around a centrally arranged pipe section.

The second supply of gasification material surrounds a further development in cross section, the outwardly facing ends of the pipe sections at least partially with an equal distance.

The second feed, according to a development, an annular gap nozzle formed from the outer wall of the burner head and the nozzle head, so that the nozzle head is in the second supply of gasification substance. The nozzle head is a ball cap, an ellipsoid cap, a hemisphere or a tube piece with a ball cap, an ellipsoid cap or a hemisphere. Furthermore, the first nozzles are channels in the nozzle head.

According to a further development, the first nozzles for gasification agent are arranged in the spherical cap or ellipsoidal cap such that in a first embodiment the flames of the gasifying agent form the circular conical space or in a second embodiment flames of the gasifying agent form the circular conical space and at least one flame of the gasifying agent in the circular cone-shaped space points.
In the second embodiment, the flames of the gasifying agent facing the room have larger angles with respect to the flames of the gasifying agent forming the circular conical space.

The first feed is a pipe pointing in the direction of the reaction space as a first pipe with the nozzle head. A portion of the first tube is surrounded by a second tube spaced apart, wherein the end pointing in the direction of the reaction chamber end is connected to the first tube, so that a recess for cooling is present. Furthermore, the second tube is arranged at a distance in a third tube with the formation of the second supply, the end regions of the second tube and the third tube pointing in the direction of the reaction space and spaced from one another forming the annular gap nozzle.

The cooling channel is the depression, which may have an intermediate wall ending at a distance from the bottom of the depression. The intermediate wall divides the recess into a region for feeding parallel to the second feed and a region of the discharge parallel to the first feed, so that a directed coolant flow is given.

The first nozzles for gasification means arranged closest in the direction of the second supply for gasification material, according to a further development, enclose an angle in each case including from 60 ° to 75 ° in relation to the axis of symmetry of the burner head in the direction of the reaction space.

The second supply of gasification material is alternately wider and narrower in sections, according to a development over the circumference, wherein the narrow portions are in the region of the first nozzles arranged closest to the second feed.

The exit velocities of the gasifying agent and of the gasification material are, according to a development, in each case including from 30 m / s to 120 m / s.

According to a further development, the number, the size and the alignment of the flames of the gasification agent and, accordingly, the number, the size and the orientation of the first gasification agent nozzles are determined according to the geometry of the reaction space and the available gas residence time.

The momentum flow of the injection of the gasification substance is, according to a development, smaller than the momentum current of the injection of the gasification agent, so that the flow profile impressed by the gasification agent is not disturbed.

The first end in the nozzle head tubular supply for gasification means, according to a development of at least one projecting into the first supply heat sink. This consists of the material of the first supply to the nozzle head, wherein the first supply, the nozzle head and the heat sink are integrally formed.

The end portions of the first nozzles for gasification agent have according to a further development of inserts made of a wear-resistant, high-temperature resistant and thermal shock resistant material. This may in particular be a ceramic or a metal-ceramic compound.

The first supply has a cooling protection tube for gasification agent, so that the cooling protection tube is spaced from the inner wall of the first supply and / or the annular gap nozzle has a protective tube, so that the cooling protection tube is arranged in the second supply.

An embodiment of the invention is illustrated in principle in the drawings and will be described in more detail below.

• 1 ein Brennerkopf mit Rohrstücken als erste Düsen für Vergasungsmittel zur Anordnung im Kopf eines Vergasers in einer Schnittdarstellung,
• 2 eine Ansicht auf die in den Reaktionsraum weisende Stirnfläche eines derartigen Brennerkopfs,
• 3 ein Brennerkopf mit einem Düsenkopf als Kugelkappe mit ersten Düsen für Vergasungsmittel und einer Kühlrippe zur Anordnung im Kopf eines Vergasers in einer Schnittdarstellung,
• 4 ein Brennerkopf mit einem Düsenkopf als Kugelkappe mit ersten Düsen für Vergasungsmittel zur Anordnung im Kopf eines Vergasers in einer Schnittdarstellung und
• 5 ein gekühlter Brennerkopf mit einem Düsenkopf als Kugelkappe mit ersten Düsen für Vergasungsmittel zur Anordnung im Kopf eines Vergasers in einer Schnittdarstellung.

Show it:

• 1 a burner head with pipe sections as the first nozzles for gasification means for arrangement in the head of a carburetor in a sectional view,
• 2 a view of the pointing into the reaction space end face of such a burner head,
• 3 a burner head with a nozzle head as a ball cap with first nozzles for gasification agent and a cooling fin for arrangement in the head of a carburetor in a sectional view,
• 4 a burner head with a nozzle head as a ball cap with first nozzles for gasification agent for arrangement in the head of a carburettor in a sectional view and
• 5 a cooled burner head with a nozzle head as a ball cap with first nozzles for gasification agent for arrangement in the head of a carburetor in a sectional view.

A burner head 1 for arrangement in the head of a carburettor for the primary oxidation of gaseous gasification substances 3 in carburetors according to the principle of autothermal reforming (ATR) or non-catalytic partial oxidation (POX), wherein the burner head 1 at least a first feeder 4 for gasification agents 2 and a second feeder 5 for gasification substance 3 and the rays of the gasifying agent 2 in the reaction room 6 of the carburetor flames of the gasifying agent 2 Form essentially consists of a nozzle head with several first nozzles 7 for gasification agents 2 and one through the second feeder 5 trained second nozzle 8th for gasification substance 3 ,

The end portion of the second feeder 5 is the second nozzle 8th for gasification substance 3 with several first nozzles 7 for gasification agents 2 , The axes of the first nozzles 7 and the axis of the burner head 1 towards the reaction space 6 include an angle equal to or less than 90 ° so that gasification agents 2 in different directions away from the burner axis into the reaction space 6 Inject and the rays of the gasifying agent 2 a circular cone-shaped space in the reaction space 6 train and do not touch or overlap each other. The first nozzles 7 for gasification agents 2 end in the reaction space 6 over the second feeder 5 for gasification substance 3 , Furthermore, the first nozzles protrude beyond 7 the second feeder 5 for gasification substance 3 towards the reaction space 4 ,

The 1 shows a burner head 1 with pipe pieces 9 as first nozzles 7 for gasification agents 2 for arrangement in the head of a carburetor in a basic sectional view.

In one embodiment, the first nozzles are 7 for gasification agents 2 towards the reaction space 6 the carburetor facing pipe sections 9 at the bottom of the first feeder 4 for gasification agents 2 , In each case, the interior of a pipe section 9 via an opening in the bottom with the first feeder 4 for gasification agents 2 connected. The floor and pipe sections 9 are the nozzle head. The pipe piece 9 has the shape of a cross-section Conic section. pipe pieces 9 are a centrally located piece of pipe 9 arranged.

The 2 shows a view of the in the reaction space 6 pointing face 10 such a burner head 1 in a schematic representation.

The second nozzle 8th the second feeder 5 for gasification substance 3 surrounds in cross-section the outwardly facing ends of the pipe sections 9 at least in areas with an equal distance.

The 3 shows a burner head 1 with a nozzle head as a ball cap with first nozzles 7 for gasification agents 2 for arrangement in the head of a carburetor in a basic sectional view.

In a further embodiment, the burner head has 1 the central nozzle head with the first nozzles 7 for gasification agents 2 whose end is designed as a ball cap. This has six rotationally symmetrically arranged first nozzles 7 for gasification agents 2 in the form of channels. The channels are introduced holes. The first nozzles 7 are each arranged rotationally symmetrically offset in a first plane and in a second plane against each other. These are the first nozzles 7 for gasification agents 2 in the ball cap so arranged that flames of the gasifying agent 2 form the surface of a circular cone-shaped space and into the reaction space 6 point.

The burner head 1 is made of a high temperature and corrosion resistant nickel base material. The axes of the first nozzles 7 the first plane are inclined at an angle of 70 ° and those of the second plane at an angle of 45 ° with respect to the burner head axis. The cross sections of the nozzle mouths for gasification agents 2 are designed so that 75% of the mass flow of gasification agent 2 over the first nozzles 7 the first level and 25% of the mass flow through the first nozzles 7 the second level into the reaction space 6 stream. The exit velocities from the first nozzles 7 can be for example 90 m / s. From the center, a heat sink can point into the first feeder. The heat sink may advantageously consist of the material of the nozzle head. Instead of the heat sink, in a further embodiment, a first nozzle 7 be arranged centrally in the nozzle head (representation in the 3 ).

The nozzle head with the first nozzles 7 is located in the second feeder 5 for gasification substance 3 ,

The 4 shows a cooled burner head 1 with a nozzle head as a ball cap with first nozzles 7 for gasification agents 2 and a cooling fin 16 for arrangement in the head of a carburetor in a basic sectional view.

In a further embodiment, the first feeder 4 for gasification agents 2 above the outer in the reaction space 6 pointing face 10 of the burner head 1 with a cooling channel 11 provided with an annular recess between the first feed 4 for gasification agents 2 and the second feeder 5 for gasification substance 3 with a distance to the bottom of the recess ending intermediate wall 12 is. In the depression is the partition 12 as a flow divider for the coolant 13 , Thus, for example, water as a coolant 13 introduced, at the end of the annular bottom spaced intermediate wall 12 redirected and diverted. The coolant 13 thus occurs at the second formed as an outer annular gap feed 5 one, will be until the lower end of the intermediate 12 passed and deflected to an inner annular gap. The diverted coolant 13 flows up inside the annular gap and leaves the burner head 1 as heated coolant 13 , In addition to this cooling, the first feeder 4 for gasification agents 2 a centrally located and in the first feeder 4 pointing heat sink as a cooling fin 16 have.

The 5 shows a cooled burner head 1 with a nozzle head as ellipsoid cap with first nozzles 7 for gasification agents 2 for arrangement in the head of a carburetor in a basic sectional view.

Instead of the cooling fin 16 In a variant embodiment of the embodiment, a first nozzle 7 be arranged centrally in the nozzle head.

The first feeder 4 and the the cooling channel 11 forming recess are from the second feeder 5 for gasification substance 3 surrounded, the end of which is an annular gap nozzle.

In addition, in the first feeder can 4 furthermore a cooling protection tube 14 for gasification agents 2 so that the gasification agent 2 before cooling by cooling the coolant 13 in the cooling channel 11 is protected. Of course, even in the second feeder 5 a cooling protection tube 15 for gasification substance 3 be arranged with this cooling protection tube 15 that will be in the second feeder 5 Gasification material flowing at temperatures of about 400 ° C 3 protected against cooling.

This is a burner head 1 for the primary oxidation of the gasification substance 3 in the form of natural gas with the gasification agent 2 in the form of oxygen available in carburetors according to the POX or ATR principle.

This allows a gasification of 50 MW _th natural gas (about 4961 Nm ³ / h, preheated to 400 ° C) as gasification 3 at 60 bar and 1415 ° C with about 2431 Nm ³ / h of oxygen (preheated to 250 ° C) as a gasifying agent 2 respectively. 75% of this oxygen flows at 91 m / s over six first nozzles 7 with 7.3 mm bore diameter at an angle of 70 ° to the reaction chamber 6 pointing burner head axis in the reaction space 6 , These six as first holes and thus as channels executed first nozzles 7 are mounted in the nozzle head, which has an inner diameter of 50 mm and an outer diameter of 70 mm. This results in six flames of gasification agent 2 with, for example, a flame length of 37 cm, which span at the angle of 70 ° to the burner head axis a circular cone-shaped space with an outer cone diameter of for example 77 cm. at 1 In the reactor diameter, this results in a relation of the cone diameter of the gasification agent 2 to reactor diameter of about 77%.

LIST OF REFERENCE NUMBERS

1

burner head

2

gasification agent

3

gasification material

4

first feed gasification agent

5

second feed gasification substance

6

reaction chamber

7

first nozzle gasification agent

8th

second nozzle gasification substance

9

Pipe piece as the first nozzle gasification agent

10

face

11

cooling channel

12

Intermediate wall cooling channel

13

coolant

14

Cooling conduit

15

Cooling conduit

16

cooling fin

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 4704971 [0004]
• DE 3123866 A1 [0004]
• WO 01/081509 A [0004]
• WO 0242686 A1 [0004]
• US 2004/0067461 A1 [0004]
• WO 2005/017411 A1 [0004]
• US 2007/0134608 A1 [0004]
• US 7267809 B2 [0004]
• WO 2011/095274 A2 [0004]
• EP 1182181 A1 [0005, 0006]
• DE 3726875 C2 [0005, 0007]
• EP 1717295 B1 [0005, 0008]
• CN 202080879 U [0009]
• DE 102014211755 A1 [0010]
• DE 102014211757 A1 [0010]

Claims (8)

Burner head (1) for arrangement in the head of a carburetor for the primary oxidation of gaseous gasification substances in carburettors according to the principle of autothermal reforming (ATR) or non-catalytic partial oxidation (POX), wherein the burner head (1) at least one first supply (4) with first nozzles ( 7) for gasification agent (2) and a second feed (5) for gasification material (3) and the jets of the gasification agent (2) in the reaction chamber (6) of the gasifier flames of the gasification agent (2) form, characterized in that - Feed (4) pointing in the direction of the reaction chamber (6) tube as a first tube having a nozzle head with a plurality of first nozzles (7) for gasification means (2), - that the axes of the first nozzle (7) and the axis of the burner head ( 1) in the direction of the reaction space (6) an angle equal to or less than 90 °, so that gasification agent (2) in different directions from the burner axis away in the reaction space (6) a sen and the jets of the gasification agent (2) form a circular conical space in the reaction space (6) and thereby do not touch or overlap one another, - that a region of the first tube is surrounded by a second tube spaced, wherein the reaction space (6) pointing end is connected to the first tube, so that a recess for cooling is present, - that the second tube is arranged in a third tube with formation of the second supply (5) for gasification material (3), wherein the reaction space ( 6) pointing and spaced apart end portions of the second tube and the third tube form an annular gap, - that the first nozzle (7) the second supply (5) for gasification material (3) projecting towards the reaction space (4) and - Feed (4) a cooling protection tube (14) for gasification means (2) so that the cooling protection tube (14) spaced from the inner wall d the first feed (4) is located, and / or - the second feed (5) for gasification substance (3) has a cooling protection tube (15) for gasification substance (3) such that the cooling protection tube (15) in the second feed (5) is arranged. Burner head after Claim 1 , characterized in that the second feed (5) is an annular gap nozzle formed from the outer wall of the burner head (1) and the nozzle head, so that the nozzle head in the second feed (5) for gasification substance (3) is that the nozzle head is a spherical cap , an ellipsoidal cap, a hemisphere or a tube piece with a ball cap, an ellipsoidal cap or a hemisphere, and that the first nozzles (7) are channels in the nozzle head. Burner head after the Claims and 2 characterized in that the first nozzles (7) for gasification means (2) are arranged in the ball cap or ellipsoidal cap such that the flames of the gasifying agent (2) form the circular conical space or flames of the gasifying agent (2) form the circular conical space and has at least one flame of the gasification agent (2) in the circular cone-shaped space. Burner head after Claim 1 characterized in that the first nozzles (7) for gasification means (2) disposed closest to the second supply (5) for gasification substance (3) have an angle respectively including 60 ° to 75 ° with respect to the axis of symmetry of the burner head (1 ) in the direction of the reaction space (6). Burner head after Claim 1 , characterized in that the second feed (5) for gasification substance (3) is alternately wider and narrower in sections over the circumference, the narrow sections being in the region of the first nozzles (7) closest to the second feed (5). Burner head after Claim 1 , characterized in that the exit velocities of the gasification agent (2) and the gasification substance (3) are each inclusive of from 30 m / s to 120 m / s. Burner head after Claim 1 , characterized in that the first tubular supply for gasification means (2) ending in the nozzle head comprises at least one heat sink projecting into the first feed (4), which consists of the material of the first feed (4) with the nozzle head, the first feed ( 4), the nozzle head and the heat sink are integrally formed. Burner head after Claim 1 , characterized in that the end portions of the first nozzles (7) for gasification means (2) have inserts made of a wear-resistant, high-temperature resistant and thermoshock resistant material.

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