CN216925165U - Natural gas pure oxygen nozzle of shuttle kiln and shuttle kiln - Google Patents
Natural gas pure oxygen nozzle of shuttle kiln and shuttle kiln Download PDFInfo
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- CN216925165U CN216925165U CN202123028571.0U CN202123028571U CN216925165U CN 216925165 U CN216925165 U CN 216925165U CN 202123028571 U CN202123028571 U CN 202123028571U CN 216925165 U CN216925165 U CN 216925165U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Abstract
The utility model discloses a natural gas pure oxygen burner of a shuttle kiln, which comprises a primary gas transmission channel, a secondary gas transmission channel and a sleeve, wherein the sleeve is provided with an ignition section, a contraction section and a leading-out section; an air inlet hole is formed at the joint of the ignition section and the secondary air transmission channel, and the ignition section is communicated with the outside through the air inlet hole; the diameter of the contraction section is gradually reduced from the connection part of the contraction section and the ignition section to the direction of the leading-out section, so that the air pressure of the contraction section is lower than that of the ignition section. Correspondingly, the utility model also provides the shuttle kiln, which comprises the natural gas pure oxygen burner of the shuttle kiln. The utility model has the advantages of effectively controlling combustion power, increasing convective heat transfer intensity, reducing the temperature of core flame and being suitable for ceramic firing.
Description
Technical Field
The utility model relates to the technical field of ceramic equipment, in particular to a natural gas pure oxygen burner of a shuttle kiln and the shuttle kiln.
Background
Because the ceramic industry depends heavily on fossil energy and is a large carbon consumption family of natural gas, the realization of pure oxygen combustion of the natural gas in the shuttle kiln can not only reduce the use amount of the natural gas in a ceramic factory and reduce the cost, but also completely eliminate NOx pollution and reduce CO2The purpose of multiple purposes is achieved by discharging.
Although the pure oxygen burner technology is applied to the metallurgical industry and the glass industry at present, the kiln shape of the ceramic industry is different from that of the metallurgical industry and the glass industry, so that the shuttle kiln burner of the metallurgical industry and the glass industry cannot be directly applied to the shuttle kiln of the ceramic industry.
Specifically, the burner nozzles in the current market are generally too high in power and cannot be applied to ceramic shuttle kilns; in addition, the existing burner cannot effectively control the high temperature point of the flame, so that the temperature of the flame is too high, the flame path is too wide, the space in the kiln is wasted, and the ceramic forming is not facilitated. In addition, the nozzle temperature of the existing burner is too high, so that the service life of the nozzle is shortened, the consumption of consumables and the maintenance cost are increased, and the long-term use is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a natural gas pure oxygen burner of a shuttle kiln and the shuttle kiln, which can effectively control combustion power, increase the convective heat transfer strength and reduce the temperature of core flame so as to be suitable for firing ceramics.
In order to solve the technical problem, the utility model provides a natural gas pure oxygen burner of a shuttle kiln, which comprises a primary gas transmission channel, a secondary gas transmission channel and a sleeve, wherein the primary gas transmission channel is sleeved in the secondary gas transmission channel, and the inner wall of the secondary gas transmission channel is separated from the outer wall of the primary gas transmission channel by a preset distance;
the sleeve is provided with an ignition section, a contraction section and a leading-out section, the ignition section is communicated with the leading-out section through the contraction section, the leading-out section is communicated with the outside, and the primary gas transmission channel is communicated with the ignition section through the secondary gas transmission channel;
an air inlet hole is formed in the joint of the ignition section and the secondary air transmission channel, so that the ignition section is communicated with the outside through the air inlet hole, the diameter of the contraction section is gradually reduced from the joint of the contraction section and the ignition section to the direction of the derivation section, and the air pressure of the derivation section is lower than the external air pressure.
Preferably, the natural gas pure oxygen nozzle of shuttle kiln still includes the supporting seat, the supporting seat is equipped with the recess, the sleeve passes the supporting seat extremely in the recess, just the sleeve with preset distance is separated by between the recess, so that be formed with the air feed district between sleeve and the recess, the inlet port with the air feed district is linked together.
Preferably, a connecting platform is arranged between the secondary gas transmission channel and the ignition section, the gas inlet holes penetrate through the connecting platform, and the discharge holes are arranged at intervals around the secondary gas transmission channel.
Preferably, a primary gas pipe is arranged in the primary gas transmission channel and used for transmitting natural gas, a primary combustion-supporting pipe is arranged on the primary gas transmission channel and used for transmitting air, the primary gas pipe is inserted into the ignition section, and the primary combustion-supporting pipe is communicated with the ignition section;
the position of the primary combustion-supporting pipe is staggered with that of the primary gas pipe.
Preferably, an ignition electrode tube is further arranged in the primary gas transmission channel, the ignition electrode tube is inserted into the ignition section, and an outlet of the ignition electrode tube is arranged towards an outlet of the primary gas tube;
a gap is arranged between the ignition electrode pipe and the primary gas pipe, and a gap is arranged between the ignition electrode pipe and the primary gas transmission channel, so that the primary combustion-supporting pipe is communicated with the ignition section through the gap.
Preferably, a limiting plate is further arranged in the primary gas transmission channel, the primary gas pipe penetrates through the limiting plate to the ignition section, a vent hole is formed in the limiting plate, and the vent hole is communicated with the primary combustion-supporting pipe through the gap.
Preferably, the vent hole includes a first through hole provided around the primary gas pipe and a second through hole provided around the first through hole and the primary gas pipe;
the second through hole is located at the edge of the limiting plate, an inclined plane is arranged in the second through hole, and the inclined plane is arranged in an inclined mode in the clockwise direction or the anticlockwise direction.
Preferably, the secondary gas transmission channel is provided with a secondary gas pipe for transmitting natural gas and a secondary combustion-supporting pipe for transmitting air, the secondary gas pipe and the secondary combustion-supporting pipe are both communicated with the ignition section, and the position of the secondary combustion-supporting pipe is staggered with that of the secondary gas pipe;
the secondary gas pipe is provided with an ignition end, the ignition end is inserted into the ignition section, and the depth of the ignition end inserted into the ignition section is larger than that of the primary gas pipe inserted into the ignition section.
Preferably, the ratio of the natural gas conveyed by the primary gas pipe to the air conveyed by the primary combustion-supporting pipe is 1:1 to 1: 1.5; the ratio of the natural gas conveyed by the secondary gas pipe to the air conveyed by the secondary combustion-supporting pipe is 1: 3-1: 4;
the oxygen content of the air conveyed by the primary combustion-supporting pipe and the secondary combustion-supporting pipe is 90-97%.
Correspondingly, the utility model provides a shuttle kiln, which comprises a kiln wall and the natural gas pure oxygen burner of the shuttle kiln, wherein the natural gas pure oxygen burner of the shuttle kiln is arranged on the kiln wall, the kiln wall is provided with a through hole, and the natural gas pure oxygen burner of the shuttle kiln is communicated with the interior of the shuttle kiln through the through hole.
The implementation of the utility model has the following beneficial effects:
according to the utility model, the primary gas transmission channel, the secondary gas transmission channel and the sleeve are arranged, and the primary gas transmission channel is sleeved in the secondary gas transmission channel, so that gas transmitted by the primary gas transmission channel is combusted in the sleeve to form core flame and generate a primary combustion product; and the inner wall of the secondary gas transmission channel is separated from the outer wall of the primary gas transmission channel by a preset distance, so that gas with higher oxygen proportion is transmitted through the secondary gas transmission channel, lean fuel combustion can be carried out in the area around the core flame, secondary combustion products are generated, the secondary combustion products can be entrained and carried by the core flame, the firing flame with strong convection heat energy is formed in the sleeve, the temperature stability of the core flame in the sleeve is ensured, the phenomenon that the temperature of the core flame is too high is avoided, the high temperature point of the flame is effectively controlled, and the combustion power is effectively controlled.
Further, the sleeve is provided with an ignition section, a contraction section and a leading-out section, the ignition section is communicated with the leading-out section through the contraction section, the primary gas transmission channel is communicated with the ignition section through the secondary gas transmission channel, so that gas transmitted by the primary gas transmission channel and the secondary gas transmission channel can be combusted in the ignition section, and the leading-out section is communicated with the outside, so that core flame can be combusted towards the outside to form a firing flame;
wherein, the joint of the pilot section and the secondary gas transmission channel is provided with a gas inlet hole, so that the pilot section is communicated with the outside through the gas inlet hole, and external air can enter the pilot section through the gas inlet hole; the diameter of the contraction section is gradually reduced from the connection part of the contraction section and the ignition section to the direction of the derivation section to compress gas and accelerate the gas flow rate, so that the air pressure of the contraction section is reduced and is lower than that of the ignition section to form a low-pressure area, so that the external air entering through the air inlet hole can be absorbed by the contraction section, the external air can flow to the outside through the contraction section and the derivation section in sequence, and the primary combustion product and the secondary combustion product retained in the ignition section are driven to flow towards the directions of the contraction section and the derivation section through the flow of the external air so as to be heated and combusted by core flame, so that the burning flame with stable state, reasonable temperature, moderate length and strong convection heat transfer capacity is formed outside.
Drawings
FIG. 1 is a structural diagram of a shuttle kiln natural gas pure oxygen burner of the utility model;
FIG. 2 is a cross-sectional view of the shuttle kiln natural gas pure oxygen burner shown in FIG. 1;
FIG. 3 is an enlarged view of a portion A shown in FIG. 2;
FIG. 4 is another angled cross-sectional view of the natural gas pure oxygen burner of the shuttle kiln shown in FIG. 1;
FIG. 5 is a side view of the shuttle kiln natural gas pure oxygen burner shown in FIG. 1;
fig. 6 is a structural view of the stopper plate of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the utility model is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the utility model.
With reference to fig. 1 to 6, the utility model provides a natural gas pure oxygen burner for a shuttle kiln, which comprises a primary gas transmission channel 1, a secondary gas transmission channel 2 and a sleeve 3.
The gas-fired boiler is sleeved in the secondary gas transmission channel 2 through the primary gas transmission channel 1, and gas transmitted by the primary gas transmission channel 1 is combusted in the sleeve 3 to form core flame and generate a primary combustion product; and the inner wall of the secondary gas transmission channel 2 is separated from the outer wall of the primary gas transmission channel 1 by a preset distance, so that gas with higher oxygen proportion is transmitted through the secondary gas transmission channel 2, lean fuel combustion can be carried out in the area around the core flame, secondary combustion products are generated, the secondary combustion products can be entrained and carried by the core flame, a firing flame with strong convection heat transfer capacity is formed outside the sleeve 3, and meanwhile, the temperature stability of the core flame in the sleeve 3 is guaranteed, the phenomenon that the temperature is too high is avoided, the high temperature point of the flame is effectively controlled, and the effect of effectively controlling the combustion power is realized.
Further, the sleeve 3 is provided with an pilot section 31, a contraction section 32 and a leading-out section 33, the pilot section 31 is communicated with the leading-out section 33 through the contraction section 32, the pilot section 31 is communicated with the primary gas transmission channel 1 and the secondary gas transmission channel 2, so that the gas transmitted by the primary gas transmission channel 1 and the secondary gas transmission channel 2 is combusted in the pilot section 31, and the leading-out section 33 is communicated with the outside, so that the core flame can be combusted towards the outside to form a firing flame;
wherein, an air inlet 23 is arranged at the joint of the pilot section 31 and the secondary air transmission channel 2, so that the pilot section 31 is communicated with the outside through the air inlet 23, and the outside air can enter the pilot section 31 through the air inlet 23; the diameter of the contraction section 32 is gradually reduced from the connection part of the contraction section 32 and the ignition section 31 to the direction of the guide section 33, so as to compress the gas and accelerate the gas flow rate, thereby reducing the gas pressure of the contraction section 32 to be lower than that of the ignition section 31, forming a low-pressure area, thereby enabling the external air entering through the air inlet hole 23 to be adsorbed by the contraction section 32, so that the external air can flow to the outside through the contraction section 32 and the guide section 33 in sequence, and the primary combustion product and the secondary combustion product which are stagnated in the ignition section 31 are driven to flow to the directions of the contraction section 32 and the guide section 33 through the flow of the external air so as to be heated and combusted by the core flame, thereby forming a stable, reasonable-temperature, moderate length and strong convection heat transfer capability firing flame at the outside.
Specifically, combine fig. 1 to fig. 4, for realizing the air feed effect, shuttle kiln natural gas pure oxygen nozzle still includes supporting seat 4, supporting seat 4 is equipped with recess 41, sleeve 3 passes supporting seat 4 extremely in the recess 41, just sleeve 3 with be separated by between the recess 41 and predetermine the distance, so that be formed with the air feed district between sleeve 3 and the recess 41, inlet port 23 with the air feed district is linked together, makes the air that is located the air feed district can flow into in the section of igniting 31 via inlet port 23 to realize adsorption effect. And even if a portion of the primary and secondary combustion products flows out of the air intake holes 23, they are confined in the air supply zone, thereby ensuring that the primary and secondary combustion products located in the air supply zone can be returned back into the pilot section 31 through the air intake holes 23 under the guidance of air to secure the combustion effect.
As an example, referring to fig. 3 to 5, since the diameter of the sleeve 3 is generally larger than that of the secondary air delivery passage 2, the secondary air delivery passage 2 can be connected with the pilot section 31 by providing a connecting platform 24 between the secondary air delivery passage 2 and the pilot section 31, wherein the air inlet holes 23 penetrate the connecting platform 24, and the air inlet holes 23 are provided in a region with higher air pressure to facilitate the inflow of the external air. Further, the air inlet holes 23 may be spaced around the secondary air delivery passage 2 to allow the external air to flow in sufficiently to guide the primary and secondary combustion products to be sufficiently burned by the core flame at the contraction section 32 and the ignition section 33, so as to further ensure the formation of the firing flame with a strong convection heat transfer capability outside the sleeve 3.
Preferably, the natural gas pure oxygen burner of the shuttle kiln can further comprise a sealing plate 5, wherein the sealing plate 5 is installed on the supporting seat 4 to seal a gap between the sleeve 3 and the supporting seat 4, so that a sealing effect is realized. Preferably, the length of the leading-out section 33 is smaller than that of the contraction section 32, so that a pressure difference is formed to achieve the adsorption effect.
Meanwhile, with reference to fig. 2 to 4, in order to form the core flame, a primary gas pipe 11 is arranged in the primary gas transmission channel 1 and used for transmitting natural gas, a primary combustion-supporting pipe 12 is arranged on the primary gas transmission channel 1 and used for transmitting air with high oxygen content, the primary gas pipe 11 is inserted into the ignition section 31, and the primary combustion-supporting pipe 12 is communicated with the ignition section 31, so that the natural gas and oxygen in the air can be mixed in the ignition section 31 and ignited to form the core flame, and a primary combustion product is generated. The position of the primary combustion-supporting pipe 12 is staggered with the position of the primary gas pipe 11, so that air input from the primary combustion-supporting pipe 12 can cool a gas channel, and the service life of a product is prolonged.
Further, for igniting the mixed natural gas and oxygen, an ignition electrode tube 13 is further arranged in the primary gas transmission channel 1, the ignition electrode tube 13 is inserted into the ignition section 31, and an outlet of the ignition electrode tube 13 faces an outlet of the primary gas tube 11 so as to ignite the oxygen in the mixed natural gas and air, and a core flame is formed at the outlet of the primary gas tube 11, so that stable combustion is ensured. A gap is arranged between the ignition electrode tube 13 and the primary gas tube 11, a gap is arranged between the ignition electrode tube 13 and the primary gas transmission channel 1, air entering from the primary combustion-supporting tube 12 can be communicated with the ignition section 31 through the gap, and the air entering from the primary combustion-supporting tube 12 can also cool the ignition electrode tube 13 and the primary gas transmission channel 1. Preferably, a flame monitoring electrode tube 16 may be further disposed near the ignition electrode tube 13.
It should be noted that, in order to reduce the temperature of the core flame, the ratio of the natural gas delivered by the primary gas pipe 11 to the air delivered by the primary combustion-supporting pipe 12 is 1:1 to 1:1.5, so that the mixture of the natural gas and the oxygen is combusted in a sub-stoichiometric ratio state, the combustion temperature is lower than the theoretical combustion temperature (about 3000 ℃), the core flame is not completely combusted, the high temperature point in the core flame range is reduced, the temperature distribution of the core flame is more uniform, the influence of the high temperature point on the service life of the refractory materials on the sleeve 3 and the sleeve 3 can be reduced, and the effects of effectively controlling the core flame and effectively controlling the combustion power are realized.
In addition, with reference to fig. 2 to 6, in order to ensure a stable structure, a limiting plate 14 is further disposed in the primary gas transmission channel 1, the primary gas pipe 11 penetrates through the limiting plate 14 to the ignition section 31, a vent hole 15 is disposed on the limiting plate 14, and the vent hole 15 is communicated with the primary combustion-supporting pipe 12 through the gap.
The vent holes 15 comprise a first through hole 151 and a second through hole 152, the first through hole 151 is arranged around the primary gas pipe 11, so that the natural gas conveyed by the primary gas pipe 11 can be uniformly mixed with oxygen in the air output by the surrounding first through hole 151; the second through hole 152 is formed around the first through hole 151 and the primary gas pipe 11 to increase a swirling flow, so that natural gas and oxygen are mixed more uniformly. Preferably, an inclined surface 153 is provided in the second through hole 152, and the inclined surface 153 is inclined in a clockwise or counterclockwise direction to form a rotational flow. More preferably, the second through hole 152 may be located at the edge of the restriction plate 14 to provide sufficient space for the formation of the swirling flow.
On the other hand, in combination with fig. 2 to 5, in order to further form a firing flame with strong convective heat transfer capability, the secondary gas transmission channel 2 is provided with a secondary gas pipe 21 for transmitting natural gas and a secondary combustion-supporting pipe 22 for transmitting air with high oxygen content, and both the secondary gas pipe 21 and the secondary combustion-supporting pipe 22 are communicated with the ignition section 31, so that fuel-lean combustion can be performed at the secondary gas pipe 21, and secondary combustion products are generated. Wherein, a part of the secondary combustion products will be burnt by the core flame together with the primary combustion products in the sleeve 3, and the other part of the primary combustion products and the secondary combustion products discharged outside will be absorbed back to the lead-out section 33, so as to be ignited by the core flame, so that the outside of the sleeve 3 can form a firing flame with strong convection heat transfer capability.
Preferably, the ignition end 211 is arranged on the secondary gas pipe 21, the ignition end 211 is inserted into the ignition section 31, and the natural gas output by the secondary gas pipe 21 is output towards the ignition section 31 through the ignition end 211, so that the natural gas and the oxygen are mixed and then directly ignited to generate a secondary combustion product. Wherein, the depth of the ignition end 211 inserted into the pilot section 31 is greater than the depth of the primary gas pipe 11 inserted into the pilot section 31, so that secondary combustion products are entrained and entrained by the core flame, thereby easily generating a firing flame with strong flow heat transfer capability. More preferably, the secondary combustion supporting pipe 22 is staggered with the secondary gas pipe 21, so as to facilitate gas mixing and facilitate the secondary combustion supporting pipe 22 to cool the secondary gas pipe 21.
In addition, in order to realize fuel-lean combustion, the ratio of the natural gas conveyed by the secondary combustion gas pipe 21 to the air with high oxygen content conveyed by the secondary combustion-supporting pipe 22 is 1:3 to 1:4, the natural gas is less, and the air is more, so that the combustion temperature at the secondary combustion gas pipe 21 is lower than the peak temperature thereof.
It should be noted that, in order to further realize the incomplete combustion of the core flame and the lean fuel combustion at the secondary gas transmission channel 2, the oxygen content of the air transmitted by the primary combustion-supporting pipe 12 and the secondary combustion-supporting pipe 22 is 90% to 97%, and by increasing the oxygen content in the air, the combustion temperature is ensured not to reach the peak temperature. The primary combustion product and the secondary combustion product are mainly convective high-temperature gas formed by combusting natural gas and oxygen, and the main components of the high-temperature gas are volatile matters such as carbon dioxide, water vapor and oxygen.
In addition, the utility model also provides a shuttle kiln, which comprises a kiln wall and the shuttle kiln natural gas pure oxygen burner, wherein the shuttle kiln natural gas pure oxygen burner is installed on the kiln wall through the supporting seat 4, the kiln wall is provided with a through hole, and the groove 41 and the sleeve 3 of the shuttle kiln natural gas pure oxygen burner can be communicated with the interior of the shuttle kiln through the through hole, so that the firing flame can be led to the interior of the shuttle kiln.
The working principle of the utility model is as follows:
firstly, an industrial personal computer transmits natural gas and oxygen with high oxygen content to a primary gas pipe 11, the natural gas and the oxygen can be mixed in a combustion section and ignited to form core flame and generate a primary combustion product;
then, the industrial personal computer sends natural gas and oxygen with high oxygen content to the secondary gas pipe 21, so that the natural gas and the oxygen carry out fuel-lean combustion in the area around the core flame and secondary combustion products are generated;
the ignition section 31 is communicated with the outside through the air inlet hole 23, so that the primary combustion product and the secondary combustion product can be conveyed to the outside through the air inlet hole 23; the diameter of the contraction section 32 is gradually reduced from the connection part of the contraction section 32 and the ignition section 31 to the direction of the guide section 33 so as to compress gas and accelerate the gas flow rate, so that the gas pressure of the contraction section 32 and the guide section 33 is reduced and is lower than the external gas pressure to form a gas pressure difference, and therefore, the primary combustion product, the secondary combustion product and the external air can move towards the direction of the guide section 33 and are adsorbed into the guide section 33 to be heated and combusted by core flame, and further form the firing flame with stable state, reasonable temperature, moderate length and strong convection heat transfer capability.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (10)
1. The natural gas pure oxygen burner of the shuttle kiln is characterized by comprising a primary gas transmission channel, a secondary gas transmission channel and a sleeve, wherein the primary gas transmission channel is sleeved in the secondary gas transmission channel, and the inner wall of the secondary gas transmission channel is separated from the outer wall of the primary gas transmission channel by a preset distance;
the sleeve is provided with an ignition section, a contraction section and a leading-out section, the ignition section is communicated with the leading-out section through the contraction section, the leading-out section is communicated with the outside, and the primary gas transmission channel is communicated with the ignition section through the secondary gas transmission channel;
an air inlet hole is formed at the joint of the ignition section and the secondary air transmission channel, and the ignition section is communicated with the outside through the air inlet hole; the diameter of the contraction section is gradually reduced from the connection part of the contraction section and the ignition section to the direction of the leading-out section, so that the air pressure of the contraction section is lower than that of the ignition section.
2. The natural gas pure oxygen burner of the shuttle kiln as claimed in claim 1, wherein the natural gas pure oxygen burner of the shuttle kiln further comprises a supporting seat, the supporting seat is provided with a groove, the sleeve penetrates through the supporting seat into the groove, and the sleeve and the groove are separated by a preset distance, so that a gas supply area is formed between the sleeve and the groove, and the gas inlet is communicated with the gas supply area.
3. The natural gas pure oxygen burner of the shuttle kiln as claimed in claim 1, wherein a connecting platform is provided between the secondary gas transmission channel and the ignition section, the gas inlet holes penetrate through the connecting platform, and the gas outlet holes are arranged at intervals around the secondary gas transmission channel.
4. The natural gas pure oxygen burner of the shuttle kiln as claimed in claim 1, wherein a primary gas pipe is arranged in the primary gas transmission channel for transmitting natural gas, a primary combustion-supporting pipe is arranged on the primary gas transmission channel for transmitting air, the primary gas pipe is inserted into the ignition section, and the primary combustion-supporting pipe is communicated with the ignition section;
the position of the primary combustion-supporting pipe is staggered with that of the primary gas pipe.
5. The natural gas pure oxygen burner of the shuttle kiln as claimed in claim 4, wherein an ignition electrode tube is further arranged in the primary gas transmission channel, the ignition electrode tube is inserted into the ignition section, and the ignition electrode tube is arranged towards the primary gas tube;
a gap is arranged between the ignition electrode pipe and the primary gas pipe, and a gap is arranged between the ignition electrode pipe and the primary gas transmission channel, so that the primary combustion-supporting pipe is communicated with the ignition section through the gap.
6. The natural gas pure oxygen burner of the shuttle kiln as claimed in claim 5, wherein a limiting plate is further arranged in the primary gas transmission channel, the primary gas pipe penetrates through the limiting plate to the ignition section, and a vent hole is arranged on the limiting plate and is communicated with the primary combustion-supporting pipe through the gap.
7. The shuttle kiln natural gas pure oxygen burner of claim 6, wherein the vent holes comprise a first through hole and a second through hole, the first through hole is disposed around the primary gas pipe, and the second through hole is disposed around the first through hole and the primary gas pipe;
the second through hole is located at the edge of the limiting plate, an inclined plane is arranged in the second through hole, and the inclined plane is arranged in an inclined mode in the clockwise direction or the anticlockwise direction.
8. The natural gas pure oxygen burner of the shuttle kiln as claimed in claim 4, wherein the secondary gas transmission channel is provided with a secondary gas pipe for transmitting natural gas and a secondary combustion-supporting pipe for transmitting air, the secondary gas pipe and the secondary combustion-supporting pipe are both communicated with the ignition section, and the position of the secondary combustion-supporting pipe is staggered with that of the secondary gas pipe;
the secondary gas pipe is provided with an ignition end, the ignition end is inserted into the ignition section, and the depth of the ignition end inserted into the ignition section is larger than that of the primary gas pipe inserted into the ignition section.
9. The shuttle kiln natural gas pure oxygen burner as claimed in claim 8, wherein the ratio of the natural gas delivered by the primary gas pipe and the air delivered by the primary combustion-supporting pipe is 1:1 to 1: 1.5; the ratio of the natural gas conveyed by the secondary gas pipe to the air conveyed by the secondary combustion-supporting pipe is 1: 3-1: 4;
the oxygen content of the air conveyed by the primary combustion-supporting pipe and the secondary combustion-supporting pipe is 90-97%.
10. The shuttle kiln is characterized by comprising a kiln wall and the shuttle kiln natural gas pure oxygen burner as claimed in any one of claims 1 to 9, wherein the shuttle kiln natural gas pure oxygen burner is installed on the kiln wall, the kiln wall is provided with a through hole, and the shuttle kiln natural gas pure oxygen burner is communicated with the interior of the shuttle kiln through the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123028571.0U CN216925165U (en) | 2021-12-02 | 2021-12-02 | Natural gas pure oxygen nozzle of shuttle kiln and shuttle kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123028571.0U CN216925165U (en) | 2021-12-02 | 2021-12-02 | Natural gas pure oxygen nozzle of shuttle kiln and shuttle kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216925165U true CN216925165U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123028571.0U Active CN216925165U (en) | 2021-12-02 | 2021-12-02 | Natural gas pure oxygen nozzle of shuttle kiln and shuttle kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216925165U (en) |
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2021
- 2021-12-02 CN CN202123028571.0U patent/CN216925165U/en active Active
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