CN109797008B

CN109797008B - Nozzle and gasification furnace with same

Info

Publication number: CN109797008B
Application number: CN201711143956.7A
Authority: CN
Inventors: 彭宝仔; 陈薇; 刘臻; 刘兵; 管清亮; 索娅
Original assignee: Shenhua Group Corp Ltd; National Institute of Clean and Low Carbon Energy
Current assignee: China Energy Investment Corp Ltd; National Institute of Clean and Low Carbon Energy
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2020-10-27
Anticipated expiration: 2037-11-17
Also published as: CN109797008A

Abstract

The invention discloses a nozzle and a gasification furnace with the nozzle. The nozzle includes: the device comprises a body, wherein a containing cavity is formed in the body, and a feed inlet is formed in the top wall of the containing cavity; and the first material distribution piece is arranged in the accommodating cavity, a plurality of first material distribution channels penetrating through the first material distribution piece in the vertical direction are arranged on the first material distribution piece, the upper surface of the first material distribution piece is adjacent to the first material distribution channels in a plurality of numbers, a first material distribution part is arranged on the part between the first material distribution channels, the first material distribution part is provided with a plurality of side surfaces and a plurality of corresponding adjacent edges of the side surfaces, and the lower edges of the side surfaces are adjacent to the corresponding adjacent edges of the first material distribution channels in a one-to-one correspondence manner. The nozzle provided by the embodiment of the invention has the advantages of uniform material distribution, difficulty in blockage and the like.

Description

Nozzle and gasification furnace with same

Technical Field

The invention relates to the field of chemical industry, in particular to a nozzle and a gasification furnace with the nozzle.

Background

CN1903998B discloses a gasifier injector comprising a two-stage slurry flow separator and an injector face plate integrated with a cooling system. The first stage separator separates the main slurry flow into several second stage slurry flows, each of which is separated into several third stage slurry flows via the second stage separator, and the third stage slurry flows are injected into the gasifying chamber via the slurry flow injecting pipes in high pressure slurry flow mode. The reactants are impinged upon each high pressure slurry stream at high pressure in the form of an annular shaped spray through a plurality of annular impingement holes integrated into the injector face plate.

The gasifier injector has the following problems:

(1) in the process of conveying materials from top to bottom, the materials often do not pass through the center of the conveying pipeline but pass through one side of the conveying pipeline due to the gravity of the materials and the influence of the side wall effect of pipeline conveying. Whereby the first stage fluid separator 42 and the second stage fluid separator 50 lose material separation and the material flows through only one or a few of the secondary chambers 46 and one or a few of the slurry injection tubes 26 with very uneven material separation.

(2) Many dead spaces exist between the secondary chambers 46, i.e., many dead spaces exist in the bottom wall of the main chamber 38, which is very likely to block the passage when the concentration of the material is high.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provide a nozzle and a gasification furnace with the nozzle, wherein the nozzle has the advantages of uniform material distribution and difficulty in blockage.

In order to achieve the above object, a first aspect of the present invention provides a nozzle comprising: the device comprises a body, wherein a containing cavity is formed in the body, and a feed inlet is formed in the top wall of the containing cavity; and the first material distributing part is arranged in the accommodating cavity, a plurality of first material distributing channels which penetrate through the first material distributing part along the vertical direction are arranged on the first material distributing part, the upper surface of the first material distributing part is positioned between the adjacent first material distributing channels, the first material distributing part is provided with a plurality of side surfaces, the lower edges of the side surfaces are adjacent to the corresponding edges of the adjacent first material distributing channels in a one-to-one correspondence manner, and preferably, the peripheral surface of the first material distributing part is in surface contact with the peripheral wall of the accommodating cavity.

According to the nozzle provided by the embodiment of the invention, the first material distribution part is arranged on the part, positioned between the adjacent first material distribution channels, of the upper surface of the first material distribution part, so that the first material distribution part can be prevented from losing material distribution effect due to the gravity of the materials and the influence of the side wall effect of pipeline conveying. The first distributing part can be used for uniformly distributing the material entering the containing cavity into the plurality of first distributing channels.

Moreover, because the lower edges of the plurality of side surfaces of the first material distributing part are adjacent to the edges of the corresponding adjacent plurality of first material distributing channels in a one-to-one correspondence manner, dead angles on the upper surface of the first material distributing part can be greatly reduced, so that the first material distributing channel can be prevented from being blocked when the material concentration is higher, and material accumulation can be prevented.

In addition, through set up a plurality of first branch material passageways on first branch material spare to can utilize the nozzle to carry high-pressure ultra-dense phase material (for example gasification raw materials), the material gets into in a plurality of first branch material passageways after dividing the material, not only can improve material handling capacity from this, can reduce the load of nozzle moreover.

Therefore, the nozzle provided by the embodiment of the invention has the advantages of uniform material distribution and low possibility of blockage.

Preferably, one of the first distributing channels is a first central distributing channel, the rest of the first distributing channels are first peripheral distributing channels, and the first peripheral distributing channels are arranged around the first central distributing channel along the circumferential direction of the first distributing member, wherein the first distributing portion is arranged on the part of the upper surface of the first distributing member between two adjacent first peripheral distributing channels, the first central distributing channel and the peripheral wall surface of the accommodating cavity, the first distributing portion has a first side surface to a fourth side surface, the lower edge of the first side surface is adjacent to the peripheral wall surface of the accommodating cavity, the lower edge of the second side surface is adjacent to the edge of the first central distributing channel, and the third side surface and the fourth side surface are adjacent to the edges of two corresponding adjacent first peripheral distributing channels in a one-to-one correspondence manner, preferably, the lower edge of the first side surface is in surface contact with the peripheral wall of the accommodating cavity, the lower edge of the second side surface is overlapped with a part of the edge of the first central material distributing channel, the lower edges of the third side surface and the fourth side surface are overlapped with a part of the edges of two adjacent first peripheral material distributing channels in a one-to-one correspondence manner, more preferably, the first side surface is in surface contact with the peripheral wall of the accommodating cavity, the second side surface and the peripheral wall of the first central material distributing channel are located on the same circumferential surface, and the third side surface and the fourth side surface are located on the same circumferential surface with the peripheral wall of two adjacent first peripheral material distributing channels in a one-to-one correspondence manner.

Preferably, the area of the cross section of the first material dividing part decreases from bottom to top, and preferably, the upper end of the first side surface to the upper end of the fourth side surface intersect at a point.

Preferably, the cavity that holds is located the feed inlet with part between the first depiler is first depiler room, the area of the cross section of first depiler room is greater than the area of the cross section of feed inlet, preferably, be equipped with first dispersion medium import on the perisporium face of first depiler room, first dispersion medium import with contained angle between the feed inlet is greater than 0 degree and is less than 180 degrees, more preferably, first dispersion medium import is a plurality of, every first dispersion medium import with contained angle between the feed inlet is greater than 30 degrees and is less than 60 degrees.

Preferably, the first distributing member has a distributing medium cavity therein, a second distributing medium inlet is provided on a peripheral wall surface of the distributing medium cavity, a distributing medium channel is provided on a bottom wall surface of the distributing medium cavity, a lower end of the distributing medium channel is open, wherein a portion of the accommodating cavity located below the first distributing member includes a second distributing chamber, and the second distributing chamber is communicated with each of the first distributing channel and the distributing medium channel.

Preferably, the dispersion medium channel is plural, a plurality of the dispersion medium channels constitute a plurality of dispersion medium channel groups, each of the dispersion medium channel groups includes at least two of the dispersion medium channels, wherein at least two of the dispersion medium channels of each of the dispersion medium channel groups are provided in a one-to-one correspondence around a plurality of the first distribution channels, preferably, each of the dispersion medium channel groups includes 2 to 8 of the dispersion medium channels, more preferably, each of the dispersion medium channel groups includes 3 to 6 of the dispersion medium channels, preferably, the included angle between the first distribution channel and each corresponding dispersion medium channel is greater than 0 degrees and less than 90 degrees, more preferably, and the included angle between the first material distribution channel and each corresponding dispersion medium channel is more than 15 degrees and less than 45 degrees.

Preferably, the nozzle further includes a second distributing member, the second distributing member is arranged in the accommodating cavity and located below the first distributing member, a portion of the accommodating cavity located between the first distributing member and the second distributing member is a second distributing chamber, a plurality of second distributing channels penetrating through the second distributing member in the vertical direction are arranged on the second distributing member, preferably, the circumferential surface of the second distributing member is in contact with the circumferential wall surface of the accommodating cavity, and more preferably, the first distributing channels are in one-to-one correspondence with the second distributing channels in the vertical direction.

Preferably, the second distributing member is provided in plurality, the second distributing member is provided in the accommodating cavity at intervals in the vertical direction, and a portion of the accommodating cavity between the first distributing member and the uppermost second distributing member is the second distributing chamber.

Preferably, the second material distribution part is internally provided with a gasifying agent cavity, the peripheral wall surface of the gasifying agent cavity is provided with a gasifying agent inlet, the bottom wall surface of the gasifying agent cavity is provided with a gasifying agent channel, the lower end of the gasifying agent channel is open, preferably, the gasifying agent channels are multiple, the multiple gasifying agent channels form multiple gasifying agent channel groups, each gasifying agent channel group comprises at least two gasifying agent channels, at least two gasifying agent channels of each gasifying agent channel group are correspondingly arranged around the multiple second material distribution channels one by one, preferably, each gasifying agent channel group comprises 2-8 gasifying agent channels, more preferably, each gasifying agent channel group comprises 3-6 gasifying agent channels, preferably, the included angle between each second material distribution channel and each corresponding gasifying agent channel is more than 0 degree and less than 90 degrees, more preferably, the included angle between the second material distribution channel and each gasification agent channel is more than 15 degrees and less than 45 degrees.

Preferably, the second distributing member has a plurality of cooling medium cavities therein, the plurality of cooling medium cavities are communicated with each other, a cooling medium inlet is provided on a wall surface of one of the plurality of cooling medium cavities, and a cooling medium outlet is provided on a wall surface of another one of the plurality of cooling medium cavities, wherein the plurality of cooling medium cavities are arranged to surround the plurality of gasifying agent passage groups in a one-to-one correspondence manner.

A second aspect of the present invention provides a gasification furnace, including: a furnace body having a furnace chamber therein; and the nozzle is the nozzle according to the first aspect of the invention, the nozzle is arranged on the furnace body, and the first material distribution channel of the nozzle is communicated with the furnace chamber.

Drawings

FIG. 1 is a schematic structural view of a nozzle according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a nozzle according to an embodiment of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2;

FIG. 4 is an enlarged view of area B of FIG. 2;

FIG. 5 is an enlarged view of area C of FIG. 2;

FIG. 6 is an enlarged view of area D of FIG. 2;

FIG. 7 is a cross-sectional view of a nozzle according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view taken along the direction F-F of FIG. 7;

fig. 9 is a sectional view taken along the direction G-G of fig. 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and are not to be construed as limiting the present invention.

The nozzle 10 according to an embodiment of the present invention is described below with reference to the drawings. As shown in fig. 1 to 9, the nozzle 10 according to the embodiment of the present invention includes a body 110 and a first discharging member 120.

The body 110 has a cavity 111 therein, and a feed inlet 112 is provided on a top wall of the cavity 111. The first distributing member 120 is disposed in the accommodating cavity 111, and a plurality of first distributing channels 121 penetrating the first distributing member 120 in the vertical direction are disposed on the first distributing member 120. The first distributing part 130 is arranged on a part of the upper surface 122 of the first distributing member 120, which is located between the adjacent first distributing channels 121, the first distributing part 130 has a plurality of side surfaces 131, and the lower edges of the plurality of side surfaces 131 are adjacent to the edges of the corresponding adjacent first distributing channels 121 in a one-to-one correspondence manner. Each side surface 131 may constitute a guide surface for guiding material into the first distribution channel 121. The vertical direction is indicated by an arrow E in fig. 2.

The material introduced into the receiving cavity 111 through the feed opening 112 is divided by the first dividing portion 130 so that the material is uniformly introduced into the adjacent first dividing channels 121 disposed around the first dividing portion 130. Since the first distributing part 130 is arranged between the adjacent first distributing channels 121, instead of only arranging the fluid separator at the center of the chamber, as in the patent application with publication number CN1903998B, the first distributing part 130 will not lose the distributing function due to the gravity of the material and the effect of the "sidewall effect" of the pipeline transportation.

The nozzle 10 according to the embodiment of the present invention is provided with the first distributing part 130 on the portion of the upper surface 122 of the first distributing member 120 between the adjacent first distributing channels 121, so that the first distributing part 130 can be prevented from losing distributing effect due to the gravity of the material and the influence of the "side wall effect" of pipeline transportation. The material entering the receiving cavity 111 can be uniformly distributed into the plurality of first distribution channels 121 by the first distribution part 130.

Moreover, since the lower edges of the plurality of side surfaces 131 of the first distributing portion 130 are adjacent to the edges of the corresponding adjacent plurality of first distributing channels 121 in a one-to-one correspondence, dead corners on the upper surface of the first distributing member 120 can be greatly reduced, so that the first distributing channels 121 can be prevented from being blocked by the material (especially when the material concentration is high), that is, the material accumulation can be prevented.

In addition, the plurality of first material distribution channels 121 are arranged on the first material distribution member 120, so that high-pressure and ultra-dense phase materials (such as gasification raw materials) can be conveyed by the nozzle 10, and the materials are distributed and then enter the plurality of first material distribution channels 121, so that the material handling capacity can be improved, and the load of the nozzle 10 can be reduced.

Therefore, the nozzle 10 according to the embodiment of the invention has the advantages of uniform material distribution, low possibility of blockage and the like.

As shown in fig. 1-9, in some embodiments of the present invention, nozzle 10 includes a body 110 and a first divider member 120.

The body 110 has a cavity 111 therein, and a feed inlet 112 is provided on a top wall of the cavity 111. As shown in fig. 1 and 2, the nozzle 10 may further include a feeding pipe 151, and the feeding pipe 151 may be connected to the feeding port 112, thereby making the structure of the nozzle 10 more reasonable.

The first distributing member 120 is disposed in the accommodating cavity 111, and a plurality of first distributing channels 121 penetrating the first distributing member 120 in the vertical direction are disposed on the first distributing member 120. The first distributing part 130 is arranged on a part of the upper surface 122 of the first distributing member 120, which is located between the adjacent first distributing channels 121, the first distributing part 130 has a plurality of side surfaces 131, and the lower edges of the plurality of side surfaces 131 are adjacent to the edges of the corresponding adjacent first distributing channels 121 in a one-to-one correspondence manner.

Preferably, one of the plurality of side surfaces 131 may contact the peripheral wall surface 1111 of the receiving cavity 111. This can completely eliminate the dead space between the first material separator 120 and the peripheral wall 1111 of the accommodation chamber 111, that is, the dead space between the first material separator 120 and the body 110, thereby preventing the material (particularly, when the material concentration is high) from being accumulated (accumulated) between the first material separator 120 and the peripheral wall 1111 of the accommodation chamber 111.

Since the first dividing portion 130 is provided on a portion of the upper surface 122 of the first dividing member 120 between the adjacent first dividing channels 121, the adjacent first dividing channels 121 are disposed around the first dividing portion 130. The upper surface 122 of the first dividing member 120 between the adjacent first dividing channels 121 may be plural, that is, the upper surface 122 of the first dividing member 120 may be provided with a plurality of first dividing portions 130.

"the lower edges of the plurality of side surfaces 131 are adjacent to the edges of the corresponding adjacent plurality of first distribution channels 121 in a one-to-one correspondence" means that: the lower edges of the plurality of side surfaces 131 of the first distributing portion 130 are adjacent to the edges of the adjacent plurality of first distributing channels 121 arranged around the first distributing portion 130 in a one-to-one correspondence. In other words, the adjacent first distributing channels 121 surrounding the first distributing part 130 are the corresponding adjacent first distributing channels 121 of the first distributing part 130.

Preferably, the circumferential surface of the first distribution member 120 is in contact with the circumferential wall surface 1111 of the accommodation chamber 111. That is, there is no gap between the circumferential surface of the first distributing member 120 and the circumferential wall surface 1111 of the receiving chamber 111.

As shown in fig. 2, in one embodiment of the present invention, one of the plurality of first distribution channels 121 may be a first central distribution channel 121a, the remaining portion of the plurality of first distribution channels 121 may be a first peripheral distribution channel 121b, and the plurality of first peripheral distribution channels 121b may be disposed around the first central distribution channel 121a in the circumferential direction of the first distribution member 120. Wherein, the circumferential direction of the first distributing member 120 may be the same as the circumferential direction of the body 110.

A first distributing portion 130 is provided on a portion of the upper surface 122 of the first distributing member 120 located between the first central distributing channel 121a, the peripheral wall surface 1111 of the accommodating chamber 111, and two adjacent first outer peripheral distributing channels 121 b. Whereby the number of first dividing portions 130 may be equal to the number of first peripheral dividing channels 121 b.

Further, unlike the patent application publication No. CN1903998B, the patent application publication No. CN104804772A, and the patent application publication No. US4194500A, the nozzle 10 of the present invention does not provide the first divided portion 130 at the center (at the central position) of the upper surface 122 of the first divided piece 120, but provides a plurality of first divided pieces 120 on a portion of the upper surface 122 of the first divided piece 120 around the center portion thereof. Preferably, a middle portion of the upper surface 122 of the first distribution member 120 may be provided with a first central distribution channel 121 a.

The first distribution portion 130 has first to fourth sides 131c, a lower edge of which may be adjacent to the peripheral wall 1111 of the receiving cavity 111, a lower edge of the second side 131a may be adjacent to an edge of the first central distribution channel 121a, and the third and

fourth sides

131b and 131c may be adjacent to respective edges of adjacent two first peripheral distribution channels 121b in a one-to-one correspondence (this "respective" means is as described above, and a description thereof is not repeated). In other words, the third side 131b may be adjacent to an edge of one of the adjacent two first peripheral distribution channels 121b, and the fourth side 131c may be adjacent to an edge of the other of the adjacent two first peripheral distribution channels 121 b.

Therefore, the first material distributing part 130 can be further prevented from losing material distributing effect due to the gravity of the material and the influence of the pipeline conveying side wall effect, so that the material entering the accommodating cavity 111 can be more uniformly distributed into the plurality of first material distributing channels 121.

Preferably, the lower edge of the first side surface may contact with the peripheral wall surface 1111 of the receiving cavity 111, the lower edge of the second side surface 131a may coincide with a portion of the edge of the first central distribution channel 121a, and the lower edges of the third side surface 131b and the fourth side surface 131c may coincide with a portion of the edges of the adjacent two first outer peripheral distribution channels 121b in one-to-one correspondence. This further reduces the dead space on the upper surface of the first distributing member 120, which further prevents the first distributing channel 121 from being blocked by material (especially when the material concentration is high), i.e. prevents material from accumulating.

More preferably, the first side surface is in contact with the peripheral wall surface 1111 of the receiving cavity 111. Dead corners on the upper surface of the first distributing member 120 can be completely eliminated, so that blockage of the first distributing channel 121 by material (especially when the material concentration is high) can be completely avoided, and material accumulation can be completely avoided.

The second side 131a and the peripheral wall of the first central distribution channel 121a are located on the same circumferential surface, and the third side 131b and the fourth side 131c are located on the same circumferential surface with the peripheral wall of the two adjacent first peripheral distribution channels 121b in a one-to-one correspondence. That is, the third side 131b is located on the same circumferential surface as the circumferential wall surface of one of the adjacent two first outer circumferential distribution channels 121b, and the fourth side 131c is located on the same circumferential surface as the other of the circumferential wall surfaces of the adjacent two first outer circumferential distribution channels 121 b.

The second side 131a, the third side 131b and the fourth side 131c can better guide the materials into the corresponding first distribution channels 121, so that the materials dispersed (distributed) by the first distribution part 130 can more easily and uniformly enter the first central distribution channel 121a and two adjacent first peripheral distribution channels 121b corresponding to the first distribution part 130.

In other words, the cross-section of the first central feed channel 121a is circular and the cross-section of each of the first peripheral feed channels 121b is circular. That is, the first central distribution channel 121a is a circular hole, and each of the first peripheral distribution channels 121b is a circular hole.

The distance from the central axis of the first central feed channel 121a to any point on the second side 131a is equal to the radius of the first central feed channel 121a, the distance from the central axis of one of the two adjacent first peripheral feed channels 121b to any point on the third side 131b is equal to the radius of the one of the two adjacent first peripheral feed channels 121b, and the distance from the central axis of the other of the two adjacent first peripheral feed channels 121b to any point on the fourth side 131c is equal to the radius of the other of the two adjacent first peripheral feed channels 121 b.

As shown in fig. 2 and 3, the area of the cross-section of the first dividing part 130 may decrease from bottom to top. Therefore, the material distributing effect of the first material distributing part 130 can be improved, that is, the material dispersing effect of the first material distributing part 130 can be improved. Preferably, the area of the cross section of the first material dividing part 130 may decrease from bottom to top, so that the material dividing effect of the first material dividing part 130 may be further improved.

Further preferably, the upper end of the first side, the upper end of the second side 131a, the upper end of the third side 131b, and the upper end of the fourth side 131c may meet at a point. In other words, the first dividing portion 130 may be tapered. Thereby, the material distributing effect of the first material distributing part 130 can be further improved.

As shown in fig. 2 and 3, a portion of the accommodating chamber 111 between the inlet port 112 and the first dividing member 120 may be the first dividing chamber 113, i.e., the first dividing member 120 is located below the first dividing chamber 113. The area of the cross section of the first distribution chamber 113 is larger than the area of the cross section of the feed port 112. Therefore, after the material (raw material) enters the first material distribution chamber 113 from the material inlet 112, the concentration of the material can be reduced, and the material can be prevented from blocking the first material distribution channel 121.

In one specific example of the present invention, as shown in fig. 2, the peripheral wall surface 1131 of the first distribution chamber 113 may be provided with a first dispersion medium inlet 114, that is, a portion of the peripheral wall surface 1111 of the accommodation chamber 111, which is opposite to the first distribution chamber 113, may be provided with the first dispersion medium inlet 114. The dispersion medium can be conveyed into the first distribution chamber 113 through the first dispersion medium inlet 114, so that the material in the first distribution chamber 113 can be impacted (impacted) by the dispersion medium, and the material in the first distribution chamber 113 can be distributed in an impacting manner, so that the material is more uniformly dispersed.

The dispersion medium introduced into the first dispersion chamber 113 through the first dispersion medium inlet 114 may be selected from at least one of nitrogen, carbon dioxide and hydrogen.

As shown in fig. 2, the first dispersion medium inlet 114 may be plural, and a plurality of first dispersion medium inlets 114 may be provided on the peripheral wall 1131 of the first distribution chamber 113 in the circumferential direction of the first distribution chamber 113. The material in the first distribution chamber 113 can thereby be hit more evenly and more fully, so that the material is dispersed more evenly.

Preferably, the angle between each first dispersion medium inlet 114 and the feed opening 112 may be greater than 0 degrees and less than 180 degrees. That is, the angle between the central axis of each first dispersion medium inlet 114 and the central axis of the feed port 112 may be greater than 0 degrees and less than 180 degrees.

More preferably, each first dispersion medium inlet 114 may be angled more than 30 degrees and less than 60 degrees from the feed opening 112. Therefore, the impact effect of the dispersing medium on the materials can be improved, and the materials can be dispersed more uniformly.

As shown in fig. 2, 4, and 8, the first dispersing member 120 may have a dispersing medium chamber 123 therein, a second dispersing medium inlet 125 may be provided on a peripheral wall surface 1232 of the dispersing medium chamber 123, a dispersing medium passage 124 may be provided on a bottom wall surface 1231 of the dispersing medium chamber 123, and a lower end 1241 of the dispersing medium passage 124 may be open. Wherein a portion of the receiving cavity 111 below the first dividing member 120 may include a second dividing chamber 115, and the second dividing chamber 115 may communicate with each of the first dividing passage 121 and the dispersion medium passage 124.

The dispersion medium can be conveyed into the second distribution chamber 115 through the second dispersion medium inlet 125 and the dispersion medium passage 124, so that the material in the second distribution chamber 115 can be impacted (secondary impact) by the dispersion medium, and the material in the second distribution chamber 115 can be distributed by the impact, so that the material is more uniformly dispersed. Wherein the material leaving the first distribution channel 121 enters the second distribution chamber 115.

The dispersion medium introduced into the second dispersion chamber 115 through the second dispersion medium inlet 125 and the dispersion medium passage 124 may be selected from at least one of nitrogen, carbon dioxide and hydrogen.

As shown in fig. 4 and 8, the dispersion medium passage 124 may be plural, and the plurality of dispersion medium passages 124 may constitute a plurality of dispersion medium passage groups, each of which may include at least two dispersion medium passages 124. Wherein at least two dispersion medium channels 124 of each of the dispersion medium channel groups may be provided around the plurality of first distribution channels 121 in a one-to-one correspondence.

That is, the number of the dispersion medium channel groups may be equal to the number of the first branch channels 121, and at least two dispersion medium channels 124 of one of the dispersion medium channel groups may be provided around one first branch channel 121. The material in the second distribution chamber 115 can thereby be impacted more uniformly and more fully, resulting in a more uniform dispersion of the material.

Preferably, each of the dispersion medium channel groups may include 2 to 8 dispersion medium channels 124. This makes the construction of the nozzle 10 more rational. More preferably, each of the dispersion medium channel groups may include 3 to 6 dispersion medium channels 124. Therefore, the structure of the nozzle 10 can be simplified and the manufacturing difficulty and the manufacturing cost of the nozzle 10 can be reduced under the condition of ensuring the material dispersion effect.

An angle between the first branch material passage 121 and each corresponding dispersion medium passage 124 may be greater than 0 degree and less than 90 degrees, that is, an angle between a central axis of the first branch material passage 121 and a central axis of each corresponding dispersion medium passage 124 may be greater than 0 degree and less than 90 degrees.

Here, the phrase "the included angle between the first distribution channel 121 and each corresponding dispersion medium channel 124 may be greater than 0 degrees and less than 90 degrees" means that: the angle between the first feed distribution channel 121 and each of the dispersion medium channels 124 provided around it may be greater than 0 degree and less than 90 degrees. In other words, each of the dispersion medium channels 124 provided around the first branch passage 121 is each of the dispersion medium channels 124 corresponding to the first branch passage 121.

More preferably, the angle between the first feed distribution channel 121 and each corresponding dispersion medium channel 124 may be greater than 15 degrees and less than 45 degrees. Therefore, the impact effect of the dispersing medium on the materials can be improved, and the materials can be dispersed more uniformly.

As shown in fig. 2 and 5, in some examples of the invention, the nozzle 10 may further include a second distribution member 140, the second distribution member 140 may be disposed in the receiving cavity 111, and the second distribution member 140 may be located below the first distribution member 120. The portion of the receiving cavity 111 between the first and

second distribution members

120 and 140 may be the second distribution chamber 115, i.e. the second distribution chamber 115 may be located above the second distribution member 140. The second distributing member 140 may be provided with a plurality of second distributing channels 141 which penetrate the second distributing member 140 in the up-down direction.

The second distributing member 140 having a plurality of second distributing channels 141 is provided, so that the distributing effect of the nozzle 10 can be further improved.

Preferably, the circumferential surface of the second distribution member 140 may contact the circumferential wall surface 1111 of the receiving chamber 111. That is, there is no gap between the circumferential surface of the second distribution member 140 and the circumferential wall surface 1111 of the accommodation chamber 111. This makes the construction of the nozzle 10 more rational.

More preferably, the plurality of first distribution channels 121 may correspond to the plurality of second distribution channels 141 one to one in the up-down direction. In other words, the number of the first distribution channels 121 may be equal to the number of the second distribution channels 141, and one first distribution channel 121 may correspond to one second distribution channel 141 in the up-down direction. This makes the construction of the nozzle 10 more rational.

That is, when the plurality of first distribution channels 121 includes the first central distribution channel 121a and the first peripheral distribution channel 121b, the plurality of second distribution channels 141 may also include the second central distribution channel 141a and the second peripheral distribution channel 141 b.

Each of the first and

second distribution channels

121 and 141 may be circular in cross-section, and the radius of the second distribution channel 141 may be greater than that of the first distribution channel 121. Thereby further preventing material from clogging the nozzle 10.

As shown in fig. 2 and 5, the height of the upper surface of the second distributing member 140 decreases from outside to inside, that is, the upper surface of the second distributing member 140 is recessed from outside to inside, so that the material can be forced into the second distributing channel 141, and the material is prevented from being deposited on the upper surface of the second distributing member 140.

In an example of the present invention, the second distributing member 140 may be a plurality of second distributing members 140, a plurality of second distributing members 140 may be spaced apart in the up-down direction in the accommodating chamber 111, and a portion of the accommodating chamber 111 between the first distributing member 120 and the uppermost second distributing member 140 may be the second distributing chamber 115. The distribution effect of the nozzle 10 can thereby be further improved.

As shown in fig. 2, 6 and 9, the second distributing member 140 may have a gasifying agent chamber 142 therein, a gasifying agent inlet 145 may be provided on a peripheral wall 1421 of the gasifying agent chamber 142, a gasifying agent passage 143 may be provided on a bottom wall 1422 of the gasifying agent chamber 142, and a lower end 1431 of the gasifying agent passage 143 may be open.

When the nozzle 10 is installed on the gasification furnace, each of the second distribution passage 141 and the gasification agent passage 143 may communicate with the furnace chamber of the gasification furnace to deliver the material and the gasification agent into the furnace chamber of the gasification furnace. When the second distribution member 140 is plural, a gasification agent chamber 142 may be provided in the lowermost second distribution member 140.

Therefore, the gasifying agent can be conveyed into the furnace cavity of the gasification furnace through the gasifying agent inlet 145 and the gasifying agent channel 143, so that the materials in the furnace cavity of the gasification furnace can be impacted (impacted for three times) by the gasifying agent, the materials in the furnace cavity of the gasification furnace can be distributed in an impacting mode, and the materials are dispersed more uniformly. Wherein, the material leaving the second material distributing channel 141 enters the furnace chamber of the gasification furnace, and the gasification agent and the material can generate gasification reaction in the furnace chamber of the gasification furnace.

The gasifying agent introduced into the furnace chamber of the gasification furnace through the gasifying agent inlet 145 and the gasifying agent passage 143 may be at least one selected from the group consisting of oxygen, air and water vapor.

As shown in fig. 6 and 9, the number of the gasification agent passages 143 may be plural, and the plural gasification agent passages 143 may constitute plural gasification agent passage groups, and each of the gasification agent passage groups may include at least two gasification agent passages 143, wherein the at least two gasification agent passages 143 of each of the gasification agent passage groups may be arranged around the plural second distribution passages 141 in a one-to-one correspondence.

That is, the number of the gasification agent passage groups may be equal to the number of the second distribution passages 141, and at least two gasification agent passages 143 of one of the gasification agent passage groups may be provided around one of the second distribution passages 141. Therefore, the materials in the furnace chamber of the gasification furnace can be impacted more uniformly and more fully, and the materials are dispersed more uniformly.

Preferably, each of the gasification agent passage groups may include 2 to 8 gasification agent passages 143. This makes the construction of the nozzle 10 more rational. More preferably, each of the gasification agent passage groups may include 3 to 6 gasification agent passages 143. Therefore, the structure of the nozzle 10 can be simplified and the manufacturing difficulty and the manufacturing cost of the nozzle 10 can be reduced under the condition of ensuring the material dispersion effect.

The included angle between the second material dividing channel 141 and each corresponding gasifying agent channel 143 may be greater than 0 degree and smaller than 90 degrees, that is, the included angle between the central axis of the second material dividing channel 141 and the central axis of each corresponding gasifying agent channel 143 may be greater than 0 degree and smaller than 90 degrees.

The "included angle between the second distribution channel 141 and each gasification agent channel 143 may be greater than 0 degree and less than 90 degrees" means: the angle between the second distribution channel 141 and each gasifying agent channel 143 arranged around it may be greater than 0 degrees and less than 90 degrees. In other words, each of the gasifying agent passages 143 provided around the second distribution member 141 is each of the gasifying agent passages 143 corresponding to the second distribution member 141.

More preferably, the included angle between the second material distribution channel 141 and each gasification agent channel 143 is more than 15 degrees and less than 45 degrees. Therefore, the impact effect of the gasification agent on the materials can be improved, and the materials can be dispersed more uniformly.

As shown in fig. 6, the second distribution member 140 may have a plurality of cooling medium cavities 144 therein, and the plurality of cooling medium cavities 144 may communicate with each other. A cooling medium inlet 146 may be formed in a wall surface of one of the plurality of cooling medium chambers 144, and a cooling medium outlet 147 may be formed in a wall surface of another one of the plurality of cooling medium chambers 144. Wherein a plurality of cooling medium chambers 144 may be provided in a one-to-one correspondence around a plurality of gasification agent channel groups.

That is, the number of cooling medium chambers 144 can be equal to the number of gasification agent channel groups, and one cooling medium chamber 144 can be disposed around one of the gasification agent channel groups. By providing a plurality of cooling medium chambers 144, the nozzle 10 can be cooled, and thus the performance of the nozzle 10 can be ensured and the service life of the nozzle 10 can be prolonged.

Specifically, the cooling medium may be cooling water, which may flow in from the cooling medium inlet 146, flow within the plurality of cooling medium cavities 144, and finally flow out from the cooling medium outlet 147. The temperature of the cooling water flowing in from the cooling medium inlet 146 is about 50 deg.c, and the temperature of the cooling water flowing out from the cooling medium outlet 147 is about 80 deg.c.

The invention also provides a gasification furnace. The gasification furnace provided by the embodiment of the invention comprises a furnace body and a nozzle. The furnace body has a furnace chamber therein and the nozzle is a nozzle 10 according to the above embodiment of the present invention. The nozzle 10 is arranged on the furnace body, and the first material distribution channel 121 of the nozzle 10 is communicated with the furnace chamber.

According to the embodiment of the invention, the gasification furnace has the advantages of uniform material distribution, difficulty in blockage and the like by arranging the nozzle 10. (which benefits to the gasifier).

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples and features of the various embodiments or examples described in this specification can be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention.

Claims

1. A nozzle, comprising:

the device comprises a body, wherein a containing cavity is formed in the body, and a feed inlet is formed in the top wall of the containing cavity; and

the first distributing part is arranged in the accommodating cavity, a plurality of first distributing channels penetrating through the first distributing part in the vertical direction are arranged on the first distributing part, one of the first distributing channels is a first central distributing channel, the rest of the first distributing channels are first peripheral distributing channels, and the first peripheral distributing channels are arranged around the first central distributing channel along the circumferential direction of the first distributing part;

the upper surface of the first material distribution piece is provided with a first material distribution part on the part between two adjacent first peripheral material distribution channels, the first central material distribution channel and the peripheral wall surface of the accommodating cavity, the first material distribution part is provided with a first side surface to a fourth side surface, the lower edge of the first side surface is adjacent to the peripheral wall surface of the accommodating cavity, the lower edge of the second side surface is adjacent to the edge of the first central material distribution channel, and the third side surface and the fourth side surface are adjacent to the edges of two corresponding adjacent first peripheral material distribution channels in a one-to-one correspondence manner.

2. The nozzle according to claim 1, wherein a peripheral surface of the first divided member is in surface contact with a peripheral wall of the accommodating chamber.

3. The nozzle of claim 2 wherein the lower edges of the first sides are in face contact with the peripheral wall of the receiving chamber, the lower edges of the second sides are coincident with a portion of the rim of the first central distribution channel, and the lower edges of the third sides and the fourth sides are coincident with a portion of the rim of two adjacent first peripheral distribution channels in a one-to-one correspondence.

4. The nozzle of claim 3 wherein said first side is in contact with a peripheral wall surface of said receiving chamber, said second side is located on the same circumferential surface as a peripheral wall surface of said first central distribution channel, and said third and fourth sides are located on the same circumferential surface as peripheral wall surfaces of two adjacent first peripheral distribution channels in a one-to-one correspondence.

5. The nozzle of claim 1, wherein the cross-sectional area of the first material distribution portion decreases from bottom to top.

6. The nozzle of claim 5, wherein an upper end of the first side intersects an upper end of the fourth side at a point.

7. The nozzle of claim 1, wherein the portion of the receiving cavity between the feed port and the first distribution member is a first distribution chamber having a cross-sectional area greater than a cross-sectional area of the feed port.

8. The nozzle of claim 7, wherein a first dispersion medium inlet is arranged on the peripheral wall surface of the first material distribution chamber, and an included angle between the first dispersion medium inlet and the feed inlet is larger than 0 degree and smaller than 180 degrees.

9. The nozzle of claim 8, wherein the first dispersion medium inlet is a plurality of inlets, and each first dispersion medium inlet is angled at an angle greater than 30 degrees and less than 60 degrees relative to the feed inlet.

10. The nozzle according to claim 1, wherein the first dispersing member has a dispersing medium chamber therein, a second dispersing medium inlet is provided on a peripheral wall surface of the dispersing medium chamber, a dispersing medium passage is provided on a bottom wall surface of the dispersing medium chamber, a lower end of the dispersing medium passage is open, and wherein a portion of the accommodating chamber located below the first dispersing member includes a second dispersing chamber communicating with each of the first dispersing passage and the dispersing medium passage.

11. The nozzle according to claim 10, wherein the dispersion medium passage is plural, and a plurality of the dispersion medium passages constitute a plurality of dispersion medium passage groups, each of the dispersion medium passage groups including at least two of the dispersion medium passages, wherein the at least two of the dispersion medium passages of each of the dispersion medium passage groups are provided around a plurality of the first distribution passages in a one-to-one correspondence.

12. The nozzle according to claim 11, wherein each of said dispersion medium passage groups comprises 2 to 8 of said dispersion medium passages.

13. The nozzle according to claim 12, wherein each of said dispersion medium passage groups comprises 3 to 6 of said dispersion medium passages.

14. The nozzle of claim 11, wherein the angle between the first distribution channel and each respective dispersion medium channel is greater than 0 degrees and less than 90 degrees.

15. A nozzle according to claim 14, wherein the angle between the first distribution channel and each respective dispersion medium channel is greater than 15 degrees and less than 45 degrees.

16. The nozzle according to claim 1, further comprising a second distributing member disposed in the accommodating chamber and below the first distributing member, wherein a portion of the accommodating chamber between the first distributing member and the second distributing member is a second distributing chamber, and a plurality of second distributing channels are disposed on the second distributing member and penetrate through the second distributing member in the up-down direction.

17. The nozzle according to claim 16, wherein a peripheral surface of the second distribution member is in surface contact with a peripheral wall of the accommodating chamber, and the plurality of first distribution passages correspond to the plurality of second distribution passages one to one in an up-down direction.

18. The nozzle of claim 17, wherein each of the first and second distribution channels is circular in cross-section, the second distribution channel has a radius greater than the radius of the first distribution channel, and the height of the upper surface of the second distribution member decreases from the outside inward.

19. The nozzle according to claim 16, wherein the second distributing member is plural, plural second distributing members are provided in the accommodating chamber at intervals in an up-down direction, and a portion of the accommodating chamber between the first distributing member and the second distributing member located uppermost is the second distributing chamber.

20. The nozzle according to claim 16, wherein the second material dividing part is internally provided with a gasifying agent cavity, the peripheral wall surface of the gasifying agent cavity is provided with a gasifying agent inlet, the bottom wall surface of the gasifying agent cavity is provided with a gasifying agent channel, and the lower end of the gasifying agent channel is open.

21. The nozzle of claim 20 wherein said gasification agent channels are in plurality, said plurality of gasification agent channels forming a plurality of gasification agent channel groups, each said gasification agent channel group including at least two of said gasification agent channels, wherein at least two of said gasification agent channels of each said gasification agent channel group are disposed in a one-to-one correspondence around a plurality of said second distribution channels.

22. The nozzle of claim 21 wherein each of said gasification agent channel sets includes 2 to 8 of said gasification agent channels.

23. The nozzle of claim 22 wherein each of said gasification agent channel sets includes 3 to 6 of said gasification agent channels.

24. The nozzle of claim 20 wherein the angle between the second distribution channel and each of the gasification agent channels is greater than 0 degrees and less than 90 degrees.

25. The nozzle of claim 24 wherein the angle between the second distribution channel and each of the gasification agent channels is greater than 15 degrees and less than 45 degrees.

26. The nozzle according to claim 21 wherein said second manifold member has a plurality of coolant chambers therein, said plurality of coolant chambers being in communication with one another, one of said plurality of coolant chambers having a coolant inlet in a wall thereof and another of said plurality of coolant chambers having a coolant outlet in a wall thereof, wherein said plurality of coolant chambers are disposed in a one-to-one correspondence around said plurality of gasification agent passage groups.

27. A gasification furnace, comprising:

a furnace body having a furnace chamber therein; and

a nozzle according to any one of claims 1 to 26, the nozzle being provided on the furnace body, the first distribution channel of the nozzle being in communication with the furnace chamber.