CN111853768A - Spiral coil cooling type low NOxPulverized coal burner - Google Patents
Spiral coil cooling type low NOxPulverized coal burner Download PDFInfo
- Publication number
- CN111853768A CN111853768A CN202010821521.9A CN202010821521A CN111853768A CN 111853768 A CN111853768 A CN 111853768A CN 202010821521 A CN202010821521 A CN 202010821521A CN 111853768 A CN111853768 A CN 111853768A
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- combustion chamber
- spiral coil
- pulverized coal
- burner
- cooling
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- 239000003245 coal Substances 0.000 title claims abstract description 39
- 238000001816 cooling Methods 0.000 title claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 claims abstract description 64
- 239000002826 coolant Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002893 slag Substances 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 abstract description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 9
- 230000017525 heat dissipation Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
- F23D1/02—Vortex burners, e.g. for cyclone-type combustion apparatus
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a spiral coil cooling type low NOx pulverized coal burner which comprises a combustion chamber connected with a burner, wherein the combustion chamber comprises an outer cylinder, a cooling assembly, a furnace lining and a combustion chamber hot air inlet, the cooling assembly comprises a spiral coil, an inner wall surface and an outer wall surface, two ends of the outer wall surface of the outer cylinder and the two ends of the outer wall surface of the cooling assembly are respectively connected with an outlet end surface and an inlet end surface to form an isobaric air chamber, two ends of the spiral coil are respectively provided with a cooling medium inlet and a cooling medium outlet, the isobaric air chamber is connected with the combustion chamber hot air inlet, and graded air pipes which are uniformly arranged in the axial direction are arranged in the combustion chamber. The invention can solve the problems of poor mechanical property, low grade of cooling water after absorbing heat and the like of the jacket water-cooled burner, improve the safety performance and the energy utilization rate of the boiler and reduce the emission of nitrogen oxides.
Description
Technical Field
The invention relates to the technical field of pulverized coal industrial boilers, in particular to a spiral coil cooling type low NOx pulverized coal burner.
Background
At present, industrial boilers in China generally have the problems of low energy efficiency, high emission and the like. The burner is used as the combustion equipment of the industrial boiler for the pulverized coal, mainly completes the ignition and combustion of the pulverized coal, and has the characteristics of small combustion space, high-temperature eddy generation, high pulverized coal combustion strength, high burnout rate and the like. In recent years, the emission of flue gas pollution of boiler equipment threatens the classified life health, and the emission of the flue gas pollution is reducedAnd finally, the national treatment on the boiler is enhanced unprecedentedly, and the boiler with unqualified emission is required to be stopped. In order to reach the emission standard, the coal-fired boiler must adopt a clean combustion technology to reduce pollution emission, wherein the low NOx combustor can realize clean combustion utilization of coal, and the principle is as follows: controlling oxygen-containing environment and reaction temperature during combustion to suppress NOx formation and reduce NOx formed to N2。
Because of the high-intensity combustion of the combustor, if the high temperature generated by the combustor cannot be dissipated and cooled in time, the high temperature can be burnt, and therefore, a cooling system is required to be arranged on the common combustor. To the cooling system of current combustor, generally adopt water-cooling method, like jacketed water-cooling method, its principle does: the outer layer of the combustion chamber is of a double-cylinder jacket cavity structure, cooling water in forced circulation is introduced into the jacket cavity, and the cooling water absorbs heat to take away heat, so that the heat dissipation of the combustor is accelerated, and the temperature of the combustor cannot reach the denaturation temperature of the combustor. Although the jacket type water cooling method can effectively solve the problem of heat dissipation and cooling of the combustor, the pressure borne by the jacket structure is limited, the temperature of cooling water cannot exceed 100 ℃, and if the temperature exceeds 100 ℃, the high pressure generated by vaporization of the cooling water is easy to burst the jacket layer. In addition, the cooling water flows unevenly in the jacket, so that local high temperature is easily generated to vaporize the cooling water, and the steam in the combustor is accumulated to deteriorate heat transfer, thereby causing accidents. Particularly, for a heat conduction oil boiler, the boiler does not have a steam-water flow, if a jacket water-cooled cooling system is adopted, equipment such as a water tank, a water treatment process, a water pump, a heat exchanger and the like required by the water-cooled system is specially arranged for a burner, not only is the space occupied and the cost increased, but also the hot water obtained after the cooling water absorbs heat and is heated has low utilization value in production, more enterprises have no hot water requirement in the production process, the energy of the part can be wasted or utilized cheaply, the heat generated by heat dissipation and cooling of the burner accounts for 7-10% of the total energy, and if the energy of the cooling water cannot be effectively utilized, the energy waste and the boiler energy efficiency reduction can be caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a spiral coil cooling type low NOx pulverized coal burner, which aims to solve the problems of poor mechanical property, low grade after cooling water absorbs heat and the like of a jacket water-cooled burner, improve the safety performance and the energy utilization rate of a boiler and reduce the emission of nitrogen oxides.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a low NOx pulverized coal burner of spiral coil cooled, includes the combustion chamber with 1 interconnect of burner, the combustion chamber includes outer cylinder, cooling module, furnace lining and combustion chamber hot-air inlet, cooling module includes spiral coil, internal face, outer wall, cooling module sets up inside and rather than coaxial setting of outer cylinder, the both ends of outer cylinder, outer wall are connected with inlet end face, outlet end face respectively and are formed isobaric plenum, the spiral coil both ends are provided with a coolant import and a coolant export respectively, isobaric plenum is connected with combustion chamber hot-air inlet, be provided with the hierarchical tuber pipe of axial evenly arranging in the combustion chamber.
The outer side summits of two adjacent pipes of the spiral coil pipe are connected through outer band steel welding to form the outer wall surface the inner side summits of two adjacent pipes of the spiral coil pipe are connected through inner band steel welding to form the outer wall surface, and heat-conducting filler is filled in the gap enclosed by the outer band steel, the inner band steel and the spiral coil pipe.
The cooling medium outlet and the cooling medium inlet at the two ends of the spiral coil respectively penetrate out of the outer cylinder, the isobaric air chamber is connected with a combustion chamber hot air inlet,
the inner side of the inner wall surface is provided with a furnace lining which comprises slag nails and a casting material, the slag nails are uniformly welded on the inner wall of the inner flat steel, and the slag nails are covered by the casting material.
The grading wind pipe passes through the outer flat steel, the inner flat steel and the furnace lining respectively and is communicated with the isobaric wind chamber and the combustion chamber in parallel.
The heat conducting medium of the spiral coil can be water or heat conducting oil.
The burner is connected with a secondary hot air inlet of the burner and an inlet end face of a combustion chamber through a shell, a blunt body, an igniter, a horn body and swirl blades are arranged in the shell, a small round end of the horn body is connected with a primary air/pulverized coal pipe penetrating through the shell, a large round end of the horn body is connected with the front end of the combustion chamber, the primary air/pulverized coal pipe is communicated with the combustion chamber through the horn body, the blunt body is arranged at an outlet of the primary air/pulverized coal pipe, the swirl blades are further arranged on the horn body, and the horn body is connected with the igniter penetrating through the shell.
The invention has the following beneficial effects:
through setting up helical coil 16 as the cooling device of combustor, when the boiler operation, the buggy passes through furnace lining 18 at the high temperature that the combustor burning produced and conducts heat to helical coil 16 and makes its intensification, low temperature heat-conducting medium flows in from heat-conducting medium import 19, flow out from heat-conducting medium export 11 after the heat transfer intensifies with high temperature helical coil 16, the quick cooling of helical coil 16 has been realized, thereby accelerated the heat transfer speed of high temperature furnace lining 18 to helical coil 16, guaranteed that furnace lining 18 can not burn out because of the slow burning that leads to of heat dissipation, with this cooling that has realized the combustor. The spiral coil 16 is welded into a cooling assembly by the inner flat steel 25 and the outer flat steel 26 to form an inner wall surface 14 and an outer wall surface 15 which are continuous, and a gap formed by connecting the inner wall surface and the outer wall surface is filled with the heat conducting filler 22, so that the cooling assembly has good mechanical property and heat conducting property. Because the pressure-bearing capacity of the spiral coil 16 is stronger, the temperature application range of the heat-conducting medium is wider, the flow of the heat-conducting medium can be adjusted according to production requirements, and the temperature of the heat-conducting medium after heat exchange and temperature rise can meet the production requirements. For example: for a steam boiler, a combustor can be cooled by cooling water, and the flow of the cooling water is controlled to generate steam with the same quality as that of a boiler hearth. For the heat conduction oil boiler, the circulating heat conduction oil of the boiler can be used for cooling the burner, and the outlet temperature of the heat conduction oil boiler is the same as the temperature of the oil discharged from the hearth by controlling the flow of the heat conduction oil.
The spiral coil 16 cooled low NOx pulverized coal burner of the present invention is provided with an axially arranged staged air duct 20. When the pulverized coal is combusted in the combustion chamber 21, the secondary hot air is sent into the isobaric air chamber 13 through the combustion chamber hot air inlet 10 and then is sprayed into the combustion chamber 21 from the grading air pipe 20 to participate in the combustion of the pulverized coal. Axially graded air distribution makes pulverized coal combustion atmosphere from oxygen deficiencyWhen the oxygen is excessively enriched, a large amount of reducing groups are generated by coal dust combustion in the anoxic stage to form a strong reducing atmosphere, the oxidation of N is not facilitated in the strong reducing atmosphere, the generation of NOx is hindered, and the NOx is reduced into N in the high-temperature reducing atmosphere2. In the oxygen-rich zone, the combustion temperature is reduced by excess air, and the generation of thermal NOx is effectively reduced. Through the process, clean combustion of the pulverized coal is realized, and generation of NOx is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic diagram of the construction of the spiral coil of the present invention;
fig. 4 is a left side view of fig. 3.
In the figure: 1 burner, 2 swirl vanes, 3 horns, 4 primary air/pulverized coal pipes, 5 bluff bodies, 6 igniters, 7 shells, 8 burner secondary hot air inlets, 9 combustion chamber inlet end faces, 10 combustion chamber hot air inlets, 11 cooling medium outlets, 12 outer cylinders, 13 isobaric air chambers, 14 inner wall faces, 15 outer wall faces, 16 spiral coil pipes, 17 combustion chamber outlet end faces, 18 furnace linings, 19 cooling medium inlets, 20 graded air pipes, 21 combustion chambers, 22 heat-conducting fillers, 23 slag nails, 24 casting materials, 25 inner flat steels and 26 outer flat steels.
Detailed Description
The present invention will be described in detail and clearly with reference to the accompanying drawings, which are provided for a better understanding of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 4, a low NOx pulverized coal burner of spiral coil cooled, include the combustion chamber 21 with 1 interconnect of burner, combustion chamber 21, including outer cylinder 12, cooling module, furnace lining 18 and combustion chamber hot-air inlet 10, cooling module includes spiral coil 16, internal wall 14, outer wall 15, cooling module sets up outer cylinder 12 is inside and rather than coaxial setting, the both ends of outer cylinder 12, outer wall 15 are connected with inlet end face 9, outlet end face 17 respectively and are formed isobaric plenum 13, spiral coil 16 both ends are provided with a coolant import 19 and a coolant export 11 respectively, isobaric plenum 13 is connected with combustion chamber hot-air inlet 10, be provided with the hierarchical tuber pipe 20 of axial evenly arranged in the combustion chamber 21.
The outside summit of the two adjacent pipes of spiral coil 16 passes through outer band steel 26 welded connection, forms outer wall surface 15 the inboard summit of the two adjacent pipes of spiral coil 16 passes through interior band steel 26 welded connection, forms outer wall surface 15, it has heat conduction filler 22 to fill in the space that outer band steel 26, interior band steel 25 and spiral coil 16 enclosed.
A cooling medium outlet 11 and a cooling medium inlet 19 at two ends of the spiral coil 16 respectively penetrate out of the outer cylinder 12, the isobaric air chamber 13 is connected with a combustion chamber hot air inlet 10,
the inner side of the inner wall surface 14 is provided with a furnace lining 18, the furnace lining 18 comprises slag nails 23 and a castable 24, the slag nails 23 are uniformly welded on the inner wall of an inner flat steel 25, and the slag nails 23 are covered by the castable 24.
The graded air pipe 20 passes through the outer flat steel 26, the inner flat steel 25 and the furnace lining 18 respectively and is communicated with the isobaric air chamber 13 and the combustion chamber 21 in parallel.
The heat conducting medium of the spiral coil 16 can be water or heat conducting oil.
The burner 1 is connected with a burner secondary hot air inlet 8 and a combustion chamber inlet end face 9 through a shell 7, a blunt body 5, an igniter 6, a horn 3 and swirl blades 2 are arranged in the shell 7, a small round end of the horn 3 is connected with a primary air/pulverized coal pipe 4 penetrating through the shell 7, a large round end of the horn 3 is connected with the front end of the combustion chamber 21, the primary air/pulverized coal pipe 4 is communicated with the combustion chamber 21 through the horn 3, the blunt body 5 is arranged at an outlet of the primary air/pulverized coal pipe 4, the swirl blades 2 are further arranged on the horn 3, and the horn 3 is connected with the igniter 6 penetrating through the shell 7.
The specific implementation process of the invention is as follows: the coal dust airflow is sent into the burner 1 through the primary air/coal dust pipe 4 and then is divided by the blunt body 5, the secondary hot air is led out from the air preheater and is respectively sent into the burner 1 and the isobaric air chamber 13 of the combustion chamber 21 from the burner secondary hot air inlet 8 and the combustion chamber hot air inlet 10, the secondary hot air sent into the burner 1 generates cyclone through the cyclone blades 2 and enters the horn body 3, the secondary hot air sent into the isobaric air chamber 13 is sprayed into the combustion chamber 21 from the grading air pipe 20 to be mixed and combusted with the pulverized coal, and an air distribution system formed by the grading air pipes 20 arranged axially enables the combustion atmosphere of the pulverized coal to be over-rich from oxygen deficiency, achieves pulverized coal air grading combustion, and effectively reduces the generation and emission of nitrogen oxides. Most of heat generated by violent combustion of the coal powder in the combustion chamber 21 is brought into a hearth by high-temperature flue gas, a part of heat is diffused to the spiral coil 16 wrapped on the outer layer of the furnace lining 18 through the furnace lining 18 in the combustor, and the transfer of heat dissipation energy is accelerated by conveying a cooling medium in the spiral coil 16, so that the combustor is cooled. The selection of the cooling medium can select heat conduction oil or water according to the type of the boiler and the production requirement, and the outlet temperature of the cooling medium is adapted to the production requirement by controlling the flow of the cooling medium in the spiral coil 16, so that the high-quality utilization of the heat dissipation energy of the combustor can be realized.
The spiral coil 16 is used as a basic member of the cooling assembly of the combustor, has strong pressure bearing capacity and high safety factor, has large temperature application range of a cooling medium, can be converted into a high-quality energy carrier, realizes high-quality utilization of heat dissipation energy of the combustor, and improves the energy efficiency of the boiler. The combustor is provided with an axial graded air distribution system, so that pulverized coal forms air graded combustion, the generation of NOx is effectively reduced, the pollution emission is reduced, and the combustor has positive significance for energy conservation and emission reduction of boilers.
The above description is only for the detailed description of the embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. A spiral-coil cooled low NOx pulverized coal burner comprising a combustion chamber (21) interconnected with a burner (1), characterized in that: combustion chamber (21), including outer cylinder (12), cooling module, furnace lining (18) and combustion chamber hot-blast import (10), cooling module includes spiral coil (16), internal face (14), outer wall (15), cooling module sets up outer cylinder (12) is inside and rather than coaxial setting, the both ends of outer cylinder (12), outer wall (15) are connected with inlet end face (9), outlet end face (17) respectively and are formed isobaric plenum (13), spiral coil (16) both ends are provided with a coolant import (19) and a coolant export (11) respectively, isobaric plenum (13) are connected with combustion chamber hot-blast import (10), be provided with hierarchical tuber pipe (20) that the axial evenly arranged in combustion chamber (21).
2. The cooling system of the heat conducting oil cooled low-NOx pulverized coal burner as claimed in claim 1, wherein: the outside summit of two adjacent pipes of spiral coil pipe (16) passes through outer band steel (26) welded connection, forms outer wall (15), the inboard summit of two adjacent pipes of spiral coil pipe (16) passes through interior band steel (26) welded connection, forms outer wall (15), it has heat conduction filler (22) to fill in the space that outer band steel (26), interior band steel (25) and spiral coil pipe (16) enclose.
3. The cooling system of the heat conducting oil cooled low-NOx pulverized coal burner as claimed in claim 1, wherein: and a cooling medium outlet (11) and a cooling medium inlet (19) at two ends of the spiral coil (16) respectively penetrate out of the outer cylinder (12), and the isobaric air chamber (13) is connected with a combustion chamber hot air inlet (10).
4. The cooling system of the heat conducting oil cooled low-NOx pulverized coal burner as claimed in claim 1 or 2, wherein: the inner side of the inner wall surface (14) is provided with a furnace lining (18), the furnace lining (18) comprises slag nails (23) and a castable (24), the slag nails (23) are uniformly welded on the inner wall of the inner flat steel (25), and the slag nails (23) are covered by the castable (24).
5. The cooling system of the heat conducting oil cooled low-NOx pulverized coal burner as claimed in claim 1, wherein: the grading air pipe (20) respectively penetrates through the outer flat steel (26), the inner flat steel (25) and the furnace lining (18) and is communicated with the isobaric air chamber (13) and the combustion chamber (21).
6. The spiral coil cooled low NOx pulverized coal burner of claim 5, wherein: the heat conducting medium of the spiral coil (16) can be water or heat conducting oil.
7. The spiral coil cooled low NOx pulverized coal burner of claim 1, wherein: the burner (1) is connected with a secondary hot air inlet (8) of the burner and an inlet end face (9) of a combustion chamber through a shell (7), a blunt body (5), an igniter (6), a horn body (3) and swirl vanes (2) are arranged in the shell (7), a small round end of the horn body (3) is connected with a primary air/pulverized coal pipe (4) penetrating through the shell (7), a large round end of the horn body (3) is connected with the front end of the combustion chamber (21), the primary air/pulverized coal pipe (4) is communicated with the combustion chamber (21) through the horn body (3), the blunt body (5) is arranged at an outlet of the primary air/pulverized coal pipe (4), the swirl vanes (2) are further arranged on the horn body (3), and the horn body (3) is connected with the igniter (6) penetrating through the shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010821521.9A CN111853768A (en) | 2020-08-15 | 2020-08-15 | Spiral coil cooling type low NOxPulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010821521.9A CN111853768A (en) | 2020-08-15 | 2020-08-15 | Spiral coil cooling type low NOxPulverized coal burner |
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| Publication Number | Publication Date |
|---|---|
| CN111853768A true CN111853768A (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010821521.9A Pending CN111853768A (en) | 2020-08-15 | 2020-08-15 | Spiral coil cooling type low NOxPulverized coal burner |
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| CN (1) | CN111853768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046222A (en) * | 2022-05-26 | 2022-09-13 | 阿尔法（江苏）重工科技有限公司 | Furnace chamber for automatically adjusting PID (proportion integration differentiation) of gas in powder making system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324334A (en) * | 2008-07-28 | 2008-12-17 | 上海题桥纺织染纱有限公司 | Low NOx liquid state slag-off double-eddy flow coal-powder combustor |
| CN206989188U (en) * | 2017-07-03 | 2018-02-09 | 陕西未来能源化工有限公司 | A kind of wind, Water cooling jacket type straight-through pulverized coal burner |
| CN110966591A (en) * | 2019-11-12 | 2020-04-07 | 广东海洋大学 | Vaporization cooling type burner |
| CN212841553U (en) * | 2020-08-15 | 2021-03-30 | 广东海洋大学 | Spiral coil pipe cooling type low NOx pulverized coal burner |
-
2020
- 2020-08-15 CN CN202010821521.9A patent/CN111853768A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324334A (en) * | 2008-07-28 | 2008-12-17 | 上海题桥纺织染纱有限公司 | Low NOx liquid state slag-off double-eddy flow coal-powder combustor |
| CN206989188U (en) * | 2017-07-03 | 2018-02-09 | 陕西未来能源化工有限公司 | A kind of wind, Water cooling jacket type straight-through pulverized coal burner |
| CN110966591A (en) * | 2019-11-12 | 2020-04-07 | 广东海洋大学 | Vaporization cooling type burner |
| CN212841553U (en) * | 2020-08-15 | 2021-03-30 | 广东海洋大学 | Spiral coil pipe cooling type low NOx pulverized coal burner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046222A (en) * | 2022-05-26 | 2022-09-13 | 阿尔法（江苏）重工科技有限公司 | Furnace chamber for automatically adjusting PID (proportion integration differentiation) of gas in powder making system |
| CN115046222B (en) * | 2022-05-26 | 2024-01-12 | 阿尔法（江苏）重工科技有限公司 | Furnace chamber capable of automatically adjusting PID (proportion integration differentiation) by gas in pulverizing system |
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