CN209991455U - Burner for industrial kiln - Google Patents
Burner for industrial kiln Download PDFInfo
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- CN209991455U CN209991455U CN201920660094.3U CN201920660094U CN209991455U CN 209991455 U CN209991455 U CN 209991455U CN 201920660094 U CN201920660094 U CN 201920660094U CN 209991455 U CN209991455 U CN 209991455U
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Abstract
The utility model provides a nozzle for industrial kiln, establish including the rifle core, the cover is established the outer stack of rifle core, the inlay card is in outer barrel in the rifle core alternates to be in interior barrel in the inner chamber of outer barrel can dismantle fixed connection and establish the front end of stack and cover the gun case of the outside of outer barrel is located just inlay card is fixed in the inner chamber of gun case the nozzle in the front end inner chamber of interior barrel is located and establish in the inner chamber of gun case and the cover is established the nozzle cap on the front end excircle of nozzle. The utility model provides a pair of nozzle for industrial kiln through making natural gas and a combustion-supporting wind through premixing before the blowout, the mist behind the misce bene is spout again, is igniteed after being spout after mixing again with the combustion-supporting wind of secondary, and the difficult charcoal grain that produces of complete combustion like this avoids blockking up the gas pocket, reaches the effect that reduces the coking.
Description
Technical Field
The utility model relates to a ceramic manufacture equipment field especially relates to a nozzle for industrial kiln.
Background
In the manufacturing process of the ceramic product, the ceramic product needs to be burnt in a ceramic kiln, and a natural gas burner is generally adopted in the existing burning process. Through years of experience and multiple experiments, the old burner is very easy to generate coking in the combustion process, the coking generated at the mouth of the old burner can generate dirt on a product after falling off, and the old burner can cause insufficient heating of the product after being blocked by the coking, so that a finished product is changed slowly.
The old-fashioned nozzle among the prior art is three-layer channel structure, and the air is at the two-layer passageway of the innermost and outermost, and the natural gas then presss from both sides in the middle of two-layer air, but three gas are not through premixing before the blowout air cock, make natural gas and air mix inadequately, cause the difficult complete combustion of natural gas and the charcoal grain that produces when heating decomposition, block up the gas pocket easily to produce the coking. Some cokes which are difficult to burn are influenced by the air pressure in the burner, are easily blown into the kiln and fall on the brick surface to form product dirt, so that the old burner is easy to generate dirt caused by coking. The burning nozzle after coking can further disturb burning, so that coking is more intense, and finally coking can block a gun sleeve opening (a silicon carbide sleeve opening), and under the condition, temperature difference can be generated in the kiln, so that the problems of product discharging color difference, discharging hysteresis and the like are caused. Therefore, the old burner is used for regularly checking the sintering combustion condition by staff, whether coking exists or not is detected, then the coking burner is cleaned, the air nozzle is replaced when coking is serious, the labor intensity of the staff is increased to a great extent, the temperature of the burner is high, the staff is easily scalded when cleaning, and certain danger is caused; such operation also causes great changes in the temperature and atmosphere in the kiln, and affects the quality of the product discharged from the kiln.
In summary, the old burner has the problem that the combustible gas is not premixed before being sprayed out of the nozzle, so that the natural gas is not easy to be completely combusted, carbon particles generated during heating decomposition are easy to block air holes, and coking is generated.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's above-mentioned defect, provide a nozzle for industrial kiln, can make combustible gas through premixing before the blowout, the difficult charcoal grain that produces of gas mixture complete combustion behind the misce bene avoids blockking up the gas pocket, reaches the effect that reduces the coking.
The utility model provides a technical scheme that technical problem adopted as follows:
a burner for an industrial kiln comprises a gun core, a gun seat sleeved outside the gun core, an outer gun tube clamped and embedded in the gun core, an inner gun tube inserted in an inner cavity of an outer gun tube, a gun sleeve detachably and fixedly connected to the front end of the gun seat and sleeved outside the outer gun tube, a burner positioned in the inner cavity of the gun sleeve and clamped and embedded in the inner cavity of the front end of the inner gun tube, and a burner cap positioned in the inner cavity of the gun sleeve and sleeved on an excircle of the front end of the burner;
a primary combustion-supporting air cavity is formed between the gun seat and the outer gun barrel, a primary combustion-supporting air channel is formed between the gun sleeve and the outer gun barrel, and the primary combustion-supporting air channel is communicated with the primary combustion-supporting air cavity;
a combustible gas channel is formed between the outer gun tube and the inner cavity tube;
a secondary combustion-supporting air cavity is formed between the gun core and the gun seat and communicated with the inner cavity of the inner gun barrel;
the burner cap forms a premixing cavity between one surface facing the inner side and the outer circle of the burner and the inner wall of the gun sleeve, the primary combustion-supporting air channel is communicated with the premixing cavity, the combustible gas channel is communicated with the premixing cavity, and a mixed gas outlet hole for mixed gas discharge in the premixing cavity is formed in the burner cap.
And the gun core is provided with a tail end face, and the tail end face is provided with a tail end hole.
The gun seat is provided with a primary combustion-supporting air inlet hole and a secondary combustion-supporting air inlet hole, the primary combustion-supporting air inlet hole and the secondary combustion-supporting air inlet hole are vertically arranged on the gun seat, the primary combustion-supporting air inlet hole is communicated with the primary combustion-supporting air cavity, and the secondary combustion-supporting air inlet hole is communicated with the secondary combustion-supporting air cavity.
Further, be located just move towards on the gun stock the link integrated into one piece of gun stock has the outer ring, is located just move towards on the gun stock the link integrated into one piece of gun stock has flange, the cover is equipped with solid fixed ring on the excircle of gun stock, gu fixed ring lean on the outer fringe pass through the screw with flange fixed connection makes the outer ring presss from both sides between solid fixed ring and flange.
Furthermore, be located on the rifle core and lean on the position of outer barrel has the fixed lantern ring along axial integrated into one piece, set up radial screw hole on the excircle of the fixed lantern ring, radial screw hole is connected with the screw and is located the outer barrel of the inner chamber of the fixed lantern ring through the fix with screw.
Further, the front end of the gun sleeve protrudes out of the front end of the fire nozzle.
Further, the length of the gun sleeve is 530MM, and the length of the matched outer gun tube is 480 MM;
or the length of the gun sleeve is 430MM, and the length of the matched outer gun tube is 360 MM.
Further, the diameter of the mixed gas outlet hole is 3.5 MM.
Furthermore, a plurality of cyclone grooves are uniformly distributed along the circumference of the outer circle of the fire nozzle cap.
Further, the spray angle of the cyclone groove is thirty degrees, forty-five degrees or sixty degrees.
The beneficial effect who adopts above-mentioned scheme is: the utility model provides a nozzle for industrial kiln, the utility model provides a nozzle for industrial kiln through making natural gas and a combustion-supporting wind through premixing before the blowout, the mist behind the misce bene is spout again, is igniteed after being spout after mixing with secondary combustion-supporting wind again, and the difficult charcoal grain that produces of complete combustion like this avoids blockking up the gas pocket, reaches the effect that reduces the coking.
Drawings
FIG. 1 is a sectional view of an embodiment of a burner for an industrial kiln according to the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic structural diagram of a burner nozzle and a burner nozzle cap of the burner nozzle for the industrial kiln.
Fig. 4 is a top view of the burner and burner cap of the burner for industrial kilns of the present invention.
In the figure: 100. a gun core; 110. a fixed collar; 120. a radial threaded hole; 200. a gun seat; 210. a secondary combustion-supporting air cavity; 220. a primary combustion-supporting air cavity; 230. a primary combustion-supporting air inlet hole; 240. a secondary combustion-supporting air inlet hole; 300. an outer barrel; 310. a combustible gas channel; 320. a combustible gas chamber; 330. a combustible gas inlet hole; 400. an inner barrel; 500. a holster; 510. an outer ring; 520. a connecting flange; 530. a fixing ring; 540. a primary combustion air passage; 600. a burner; 700. a fire nozzle cap; 710. a mixed gas outlet hole; 720. a cyclone groove; 800. and the premixing cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
FIG. 1 is a cross-sectional view of an embodiment of a burner for an industrial kiln of the present invention; FIG. 2 is an enlarged view of portion A of FIG. 1; FIG. 3 is a schematic structural view of a burner nozzle and a burner cap of the burner nozzle for an industrial kiln of the present invention; fig. 4 is a top view of the burner and burner cap of the burner for industrial kilns of the present invention.
As shown in fig. 1 and fig. 2, a burner for an industrial kiln comprises a gun core 100, the gun core 100 is located at the very tail of the burner for the industrial kiln, a gun seat 200 is sleeved outside the gun core 100, an outer gun tube 300 is embedded in the gun core 100 in a clamping way, the outer gun tube 300 can be inserted into the gun core 100 through interference fit to be directly fixed, a secondary combustion-supporting air cavity 210 is formed between the gun core 100 and the gun base 200, and in the embodiment, for convenience of disassembly, an additional fixing form is adopted, a fixing collar 110 is integrally formed on the core 100 at a position close to the outer barrel 300 in the axial direction, a radial threaded hole 120 is opened on the outer circle of the fixed lantern ring 110, a screw is connected with the radial threaded hole 120 and fixes an outer gun tube 300 positioned in the inner cavity of the fixed lantern ring 110 through the screw, when the screws are loosened, the outer barrel 300 may be removed, facilitating replacement of different models of outer barrels 300. An inner barrel 400 is inserted into the inner cavity of the outer barrel 300, and a through hole (not shown) is radially formed at the end of the outer barrel 300 located in the secondary combustion supporting air chamber 210, and the through hole is communicated with the inner cavity of the inner barrel 400, so that the secondary combustion supporting air chamber 210 is communicated with the inner cavity of the inner barrel 400, and the inner cavity of the inner barrel 400 is used for communicating secondary combustion supporting air. The outer barrel 300 and the inner barrel 400 are concentrically assembled, a gap passage is left between the outer barrel 300 and the inner barrel 400, the gap passage is used for introducing combustible gas, so that a combustible gas passage 310 is formed, a combustible gas chamber 320 is arranged at the end of the outer barrel 300 facing the gun core 100, an axial through hole (not shown in the figure) is arranged on the bottom surface of the combustible gas chamber 320 facing the combustible gas passage 310, the combustible gas passage 310 and the combustible gas chamber 320 are communicated through the axial through hole, a combustible gas inlet hole 330 is arranged on the gun core 100, the combustible gas inlet hole 330 is arranged at the middle position of the tail end face of the gun core 100, and the combustible gas inlet hole 330 is communicated with the combustible gas chamber 320 and further communicated with the combustible gas passage 310; combustible gas (natural gas) enters the combustible gas cavity 320 through the combustible gas inlet hole 330 to provide combustible gas for the burner; the middle position of the end face of the tail part of the gun core 100 is provided with a combustible gas inlet hole 330, so that the burner is directly butted with an external gas supply pipeline conveniently, the gas flow smoothly and stably enters the burner, and smooth gas flow is provided for the burner.
Fixedly connected with gun case 500 can be dismantled to the front end of gun platform 200, and gun case 500 is the carborundum sleeve, and gun case 500 cover is established the outside of outer barrel 300 is dismantled fixed connection's mode and is flange joint, and flange joint specifically is: the connecting end of the gun base 200, which faces the gun case 500, is integrally formed with an outer ring 510, the connecting end of the gun base 200, which faces the gun case 500, is integrally connected to form a flange 520, a fixing ring 530 is sleeved on the outer circle of the gun case 500, and the fixing ring 530 is fixedly connected to the connecting flange 520 by screws at the outer edge and clamps the outer ring 510 between the fixing ring 530 and the connecting flange 520, so that the detachable connection is realized. A primary combustion-supporting air cavity 220 is formed between the gun seat 200 and the outer gun barrel, a primary combustion-supporting air channel 540 is formed between the gun sleeve 500 and the outer gun barrel 300, and the primary combustion-supporting air channel 540 is communicated with the primary combustion-supporting air cavity 220; so that the combustion-supporting air (air) is introduced into the primary combustion-supporting air cavity 220 and then flows into the primary combustion-supporting air channel 540 to reach the nozzle. A primary combustion-supporting air inlet hole 230 and a secondary combustion-supporting air inlet hole 240 are formed in the gun base 200, the primary combustion-supporting air inlet hole 230 and the secondary combustion-supporting air inlet hole 240 are vertically formed, that is, radially formed, and the primary combustion-supporting air inlet hole 230 is communicated with the primary combustion-supporting air cavity 220. The secondary combustion-supporting air inlet hole 240 is communicated with the secondary combustion-supporting air cavity 210 and further communicated with the inner cavity of the inner gun tube 400; a primary combustion-supporting air inlet hole 230 and a secondary combustion-supporting air inlet hole 240 are formed in the gun seat 200 along the radial direction, so that the burner can be directly butted with an external air supply pipeline conveniently, air flow smoothly and stably enters the burner, and smooth air flow is provided for the burner.
As shown in fig. 1 and 3, a burner 600 is fixed in the front end inner cavity of the inner barrel 400 in a snap fit manner, the burner 600 is located in the inner cavity of the holster 500, a burner cap 700 is sleeved on the outer circle of the front end of the burner 600, and the burner cap 700 is located in the inner cavity of the holster 500. A premixing cavity 800 is formed between the end surface of the burner cap 700 facing the inner side, the outer circle of the burner 600 and the inner wall of the gun sleeve 500, the primary combustion air channel 540 is communicated with the premixing cavity 800, the combustible gas channel 310 is communicated with the premixing cavity 800, and a mixed gas outlet hole 710 for discharging mixed gas in the premixing cavity 800 is formed in the burner cap 700.
The natural gas enters the combustible gas cavity 320 through the combustible gas inlet hole 330 and then enters the combustible gas channel 310 and enters the premixing cavity 800 through the combustible gas channel 310, similarly, the primary combustion-supporting air enters the primary combustion-supporting air cavity 220 through the primary combustion-supporting air inlet hole 230 and then enters the primary combustion-supporting air channel 540 and finally enters the premixing cavity 800, so that the natural gas and the primary combustion-supporting air are premixed before being sprayed out, the mixed gas after being uniformly mixed is sprayed out again and is sprayed out after being mixed with the secondary combustion-supporting air and then is ignited, thus, the complete combustion is not easy to generate carbon particles, the blockage of air holes is avoided, and the coking reduction effect is achieved.
In this embodiment, the front end of the holster 500 protrudes from the front end of the burner 600. The gun case 500 is longer at the front end to form a longer nozzle, so that secondary combustion-supporting air and mixed gas are secondarily mixed in the nozzle, and the fully mixed gas is sprayed out of the nozzle to be more fully combusted.
In this embodiment, the gun case 500 and the outer gun barrel 300 are in different specifications, for example, the length of the gun case 500 is 530MM, and the length of the outer gun barrel 300 is 480 MM; alternatively, the holster 500 may be 430MM long and the mating outer barrel 300 may be 360MM long. According to the actual production condition, the use proportion of the gun sleeves 500 and the outer gun tubes 300 with different specifications and the specific position of equipment arrangement are reasonably arranged, the method has a great improvement effect on the temperature difference of the inner section of the kiln, and the problem of hysteresis of the products discharged from the kiln can be improved to a certain extent.
The diameter of the mixed gas outlet 710 in this embodiment is 3.5 MM. The diameter of an air outlet of the old burner is 1.5MM, and the small diameter of the air outlet can cause incomplete combustion of natural gas and coking; the aperture of the mixed gas outlet 710 on the burner cap 700 is enlarged, and the defects of kiln discharging products are reduced. The outer circle of the fire nozzle cap 700 is provided with cyclone grooves 720, and a plurality of cyclone grooves 720 are uniformly distributed along the circumference; the mixed gas is rotated to be sprayed forwards in a cylindrical cyclone, and the secondary combustion-supporting air and the mixed gas in the center are coated by the cylindrical cyclone and sprayed forwards. Therefore, the natural gas is wrapped in the cylindrical cyclone to be fully mixed and combusted, cylindrical flame is formed, sufficient air is guaranteed to participate in combustion in the center of the flame, the flame is concentrated, and powerful injection is achieved. The jet angle C (shown in fig. 4) of the swirl slots 720 can be thirty degrees, forty-five degrees, or sixty degrees. In actual production, the corresponding specification of the burner cap 700 can be selected according to the temperature difference of the section in the kiln, so that the temperature difference of the section in the kiln can be improved. Because the structure of the burner 600 in the embodiment is complex, the equipment is produced by adopting a five-axis linkage numerical control machine tool, and the precision of the equipment is improved.
To sum up, the utility model provides a burner for industrial kiln, through making natural gas and primary combustion-supporting wind through premixing before spouting, the mist after mixing evenly is spouted again, is spouted after mixing with secondary combustion-supporting wind again and is ignited, so complete combustion is difficult for producing the charcoal grain, avoids blockking up the gas pocket, reaches the effect that reduces the coking; the natural gas is completely combusted by enlarging the aperture of the mixed gas outlet hole 710 of the burner cap 700, and the outer circle of the burner cap 700 is provided with the cyclone groove 720, so that the mixed gas is rotationally sprayed out, and the gas is more forcefully sprayed; the gun sleeve 500 and the outer gun tube 300 with different specifications are reasonably arranged in use proportion and specific positions of equipment arrangement, so that the effect of greatly improving the temperature difference of the inner section of the kiln is achieved, and the hysteresis of the product discharged from the kiln is improved.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A burner for an industrial kiln is characterized by comprising a gun core, a gun seat sleeved outside the gun core, an outer gun tube clamped and embedded in the gun core, an inner gun tube inserted in an inner cavity of an outer gun tube, a gun sleeve detachably and fixedly connected to the front end of the gun seat and sleeved outside the outer gun tube, a fire nozzle positioned in the inner cavity of the gun sleeve and clamped and embedded in the inner cavity of the front end of the inner gun tube, and a fire nozzle cap positioned in the inner cavity of the gun sleeve and sleeved on an excircle at the front end of the fire nozzle;
a primary combustion-supporting air cavity is formed between the gun seat and the outer gun barrel, a primary combustion-supporting air channel is formed between the gun sleeve and the outer gun barrel, and the primary combustion-supporting air channel is communicated with the primary combustion-supporting air cavity;
a combustible gas channel is formed between the outer gun tube and the inner cavity tube;
a secondary combustion-supporting air cavity is formed between the gun core and the gun seat and communicated with the inner cavity of the inner gun barrel;
the burner cap forms a premixing cavity between one surface facing the inner side and the outer circle of the burner and the inner wall of the gun sleeve, the primary combustion-supporting air channel is communicated with the premixing cavity, the combustible gas channel is communicated with the premixing cavity, and a mixed gas outlet hole for mixed gas discharge in the premixing cavity is formed in the burner cap.
2. The burner for an industrial kiln according to claim 1, characterized in that: the gun core is characterized by further comprising a combustible gas inlet hole, the combustible gas inlet hole is formed in the end face of the tail portion of the gun core, and the combustible gas inlet hole is communicated with the combustible gas channel.
3. The burner for industrial kilns as set forth in claim 2, wherein: the combustion-supporting air gun also comprises a primary combustion-supporting air inlet hole and a secondary combustion-supporting air inlet hole, wherein the primary combustion-supporting air inlet hole and the secondary combustion-supporting air inlet hole are vertically arranged on the gun seat, the primary combustion-supporting air inlet hole is communicated with the primary combustion-supporting air cavity, and the secondary combustion-supporting air inlet hole is communicated with the secondary combustion-supporting air cavity.
4. The burner for an industrial kiln according to claim 1, characterized in that: lie in just move towards on the gun stock the link integrated into one piece of gun stock has the outer ring, is located just move towards on the gun stock the link integrated into one piece of gun stock has flange, the cover is equipped with solid fixed ring on the excircle of gun stock, gu fixed ring lean on the outer fringe pass through the screw with flange fixed connection makes the outer ring presss from both sides between solid fixed ring and flange.
5. The burner for an industrial kiln according to claim 1, characterized in that: the gun comprises a gun core, an outer gun barrel, a fixing sleeve ring, a screw and a bolt, wherein the gun core is arranged on the gun core, the position of the outer gun barrel is leaned on, the fixing sleeve ring is integrally formed along the axial direction, a radial threaded hole is formed in the outer circle of the fixing sleeve ring, and the radial threaded hole is connected with the bolt and is used for fixing the outer gun barrel in the inner cavity of the.
6. The burner for an industrial kiln according to claim 1, characterized in that: the front end of the gun sleeve protrudes out of the front end of the fire nozzle.
7. The burner for an industrial kiln according to claim 1, characterized in that: the length of the gun sleeve is 530MM, and the length of the matched outer gun tube is 480 MM;
or the length of the gun sleeve is 430MM, and the length of the matched outer gun tube is 360 MM.
8. The burner for an industrial kiln according to claim 1, characterized in that: the diameter of the mixed gas outlet hole is 3.5 MM.
9. The burner for an industrial kiln according to claim 8, characterized in that: the outer circle of the fire nozzle cap is provided with cyclone grooves, and the cyclone grooves are uniformly distributed along the circumference.
10. The burner for an industrial kiln according to claim 9, characterized in that: the spray angle of the cyclone groove is thirty degrees, forty-five degrees or sixty degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920660094.3U CN209991455U (en) | 2019-05-09 | 2019-05-09 | Burner for industrial kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920660094.3U CN209991455U (en) | 2019-05-09 | 2019-05-09 | Burner for industrial kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209991455U true CN209991455U (en) | 2020-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920660094.3U Active CN209991455U (en) | 2019-05-09 | 2019-05-09 | Burner for industrial kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209991455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815310A (en) * | 2021-01-20 | 2021-05-18 | 北京环科环保技术有限公司 | Low-pollution combustion head structure |
-
2019
- 2019-05-09 CN CN201920660094.3U patent/CN209991455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815310A (en) * | 2021-01-20 | 2021-05-18 | 北京环科环保技术有限公司 | Low-pollution combustion head structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210210 Address after: 523281 Mei Mei Ceramic Industrial Park, Tangxia village, Gao Gao town, Dongguan, Guangdong Patentee after: DONGGUAN CITY WONDERFUL CERAMICS INDUSTRIAL PARK Co.,Ltd. Patentee after: JIANGXI WONDERFUL CERAMIC Co.,Ltd. Address before: 523281 Tangxia village, Gaopo Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN CITY WONDERFUL CERAMICS INDUSTRIAL PARK Co.,Ltd. Patentee before: DONGGUAN WEIMEI DECORATION MATERIALS Co.,Ltd. |
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| TR01 | Transfer of patent right |