CN114057378A - Horseshoe flame glass melting furnace for recycling flue gas and working method thereof - Google Patents
Horseshoe flame glass melting furnace for recycling flue gas and working method thereof Download PDFInfo
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- CN114057378A CN114057378A CN202111620374.XA CN202111620374A CN114057378A CN 114057378 A CN114057378 A CN 114057378A CN 202111620374 A CN202111620374 A CN 202111620374A CN 114057378 A CN114057378 A CN 114057378A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/04—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in tank furnaces
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
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Abstract
The invention discloses a horseshoe flame glass melting furnace for recycling flue gas and a working method thereof, and belongs to the technical field of glass melting furnaces. The combustion spray gun is combined with the injection heat pump to heat glass materials in the melting furnace, a part of smoke is guided by the vacuum degree generated by the injection heat pump to enter the main flue along the smoke outlet and then is guided into the injection heat pump by the branch flue, and after entering the injection heat pump from the combustion spray gun, the combustion-supporting gas and fuel are mixed with the introduced smoke and then are fully combusted above the combustion chamber. Meanwhile, the rest of the flue gas enters the dividing wall heat exchanger to preheat the combustion-supporting gas, so that the heat of the flue gas is effectively utilized, the heat loss caused by the discharged flue gas is reduced, a good energy-saving effect is achieved, and the pollution of high-temperature waste gas to the environment is reduced. Meanwhile, the melting furnace can be operated in a double horse shoe flame working mode, a single-stage reversing horse shoe flame working mode or a two-stage reversing horse shoe flame working mode according to actual needs, and the application range is wide.
Description
Technical Field
The invention belongs to the technical field of glass melting furnaces, and particularly relates to a horseshoe flame glass melting furnace for recycling smoke and a working method thereof.
Background
The glass melting furnace is a key thermal equipment for glass production. With the rapid development of the glass industry and the continuous improvement of the quality of refractory materials, the melting temperature of glass is higher and higher, some of the glass is close to 1600 ℃, and the production scale is continuously enlarged. Glass melting is an important link of energy consumption in the glass production process. With the energy shortage in the world, energy conservation and emission reduction have been paid attention to governments of various countries. At present, how to improve the energy utilization rate of glass production enterprises becomes an important development direction of glass production.
The traditional horseshoe glass melting furnace is glass melting equipment with a pair of regenerators and small furnaces, and the working principle is as follows: the combustion air preheated in the regenerator rises from the regenerator and meets the injected fuel at the port of the port and is then combusted in the flame space. The two small furnaces are provided with spray guns to spray solvent, the solvent is mixed with hot air and then is combusted to generate horseshoe-shaped flame to provide heat, so that raw materials added into a melting cavity are melted into molten glass, and the molten glass is discharged after clarification and partial cooling. The flue gas waste heat recovery channel is arranged in the direction of the small furnace, so that the heat utilization rate is not high, and the heat storage chamber is difficult to overhaul and maintain; the formed horseshoe-shaped flame has long duration and high heat in the longitudinal direction, but has small coverage area in the width direction of the kiln and is heated unevenly.
The temperature of the flue gas discharged by the glass melting furnace is as high as about 1400 ℃, so that a large amount of heat energy can be wasted when the flue gas is directly discharged into the atmosphere, and the environment can be polluted by high-temperature waste gas. Even if the discharged flue gas is used for preheating subsequent combustion air, the exhaust temperature is 400-500 ℃, and a large amount of heat is still taken away; and the dividing wall heat exchanger has poor efficiency, high manufacturing cost and poor operation reliability.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a horseshoe flame glass melting furnace for recycling flue gas and a working method thereof, wherein the horseshoe flame glass melting furnace can heat and boost the flue gas discharged from the previous stage through a jet heat pump, and then the flue gas enters the melting furnace again for utilization, and meanwhile, the grading effect in the whole melting furnace is strengthened, so that the multi-time recycling of the flue gas energy is realized; has good energy-saving effect and reduces the pollution of high-temperature waste gas to the environment. And various working modes are provided, so that different practical production requirements are met.
The invention is realized by the following technical scheme:
the invention discloses a horseshoe flame glass melting furnace for recycling flue gas, which comprises a first combustion-supporting gas source, a first dividing wall heat exchanger, a first combustion spray gun, a first injection heat pump, a combustion chamber, a second injection heat pump, a second combustion spray gun, a second dividing wall heat exchanger, a second combustion-supporting gas source, a total flue and a melting tank, wherein the first combustion-supporting gas source is arranged in the first dividing wall heat exchanger;
the first injection heat pump and the second injection heat pump are arranged at a fire-jet port on one side of the combustion chamber and are positioned on two sides of the kiln shaft, and the combustion chamber is respectively connected with the feed channel and the throat; one end of the main flue is respectively connected with the heat flow inlets of the first partition wall heat exchanger and the second partition wall heat exchanger, and the other end of the main flue is connected with the flue gas outlet of the combustion chamber; the main flue is connected with a first inlet of a first injection heat pump through a first branch flue, a second inlet of the first injection heat pump is connected with a first combustion spray gun, and a first combustion-supporting gas source is connected with a combustion-supporting gas inlet of the first combustion spray gun after heat exchange is carried out on the cold side of a first dividing wall heat exchanger; the main flue is connected with a first inlet of a second injection heat pump through a second branch flue, a second inlet of the second injection heat pump is connected with a second combustion spray gun, and a second combustion-supporting gas source is connected with a combustion-supporting gas inlet of the second combustion spray gun after heat exchange is carried out on the cold side of a second partition wall heat exchanger; the fuel inlets of the first and second combustion lances are connected to a fuel supply system.
Preferably, a third injection heat pump is arranged between the first injection heat pump and the kiln shaft, the main flue is connected with a first inlet of the third injection heat pump through a third branch flue, a second inlet of the third injection heat pump is connected with a third combustion spray gun, and the first combustion-supporting gas source is connected with a combustion-supporting gas inlet of the third combustion spray gun after heat exchange is carried out on the first combustion-supporting gas source through the cold side of the first dividing wall heat exchanger; and a fourth injection heat pump is arranged between the second injection heat pump and the kiln shaft, the main flue is connected with a first inlet of the fourth injection heat pump through a fourth branch flue, a second inlet of the fourth injection heat pump is connected with a fourth combustion spray gun, and the second combustion-supporting gas source is connected with a combustion-supporting gas inlet of the fourth combustion spray gun after heat exchange through a cold side of the second partition wall heat exchanger.
Preferably, a first combustion-supporting gas valve is arranged on a gas inlet pipe between the first dividing wall heat exchanger and a combustion-supporting gas inlet of the first combustion spray gun; a second combustion-supporting gas valve is arranged on the gas inlet pipe between the second wall heat exchanger and the combustion-supporting gas inlet of the second combustion spray gun.
Preferably, the main flue is arranged below the roof of the melting furnace.
Further preferably, the main flue is a bent pipe and is matched with the radian of the kiln top.
Preferably, the first branch flue and the second branch flue are both provided with a flue gas regulating valve.
The invention discloses a working method of the horseshoe flame glass melting furnace for recycling the flue gas, which comprises the following steps:
double horseshoe flame operating mode: simultaneously starting a first injection heat pump and a second injection heat pump; the first injection heat pump and the second injection heat pump spray flame to the combustion chamber to heat glass raw materials in the melting tank, the generated flue gas enters the main flue from the flue gas outlet, a part of the flue gas is introduced into the first injection heat pump and the second injection heat pump through the first branch flue and the second branch flue, and the rest of the flue gas preheats the first combustion-supporting gas source and the second combustion-supporting gas source through the first dividing wall heat exchanger and the second dividing wall heat exchanger; the combustion-supporting gas and the fuel in the first combustion spray gun are mixed and then enter a first injection heat pump, the combustion-supporting gas and the fuel in the second combustion spray gun enter a second injection heat pump, the first injection heat pump and the second injection heat pump are mixed with the introduced flue gas and then are injected above the combustion chamber and are fully combusted, and the two flames form double horse hoof flames after being folded back;
single-stage reversing horseshoe flame working mode: the first injection heat pump and the second injection heat pump are opened circularly and alternately; the first jet heat pump and the second jet heat pump circularly and alternately spray flames to the combustion chamber to heat the glass raw material in the melting tank, the rest working processes are the same as the working mode of double horseshoe flames, and the single-strand flames form the horseshoe flames after being turned back and are circularly and alternately reversed.
Preferably, the method further comprises a two-stage reversing horseshoe flame working mode: a third injection heat pump is arranged between the first injection heat pump and the kiln shaft, the main flue is connected with a first inlet of the third injection heat pump through a third branch flue, a second inlet of the third injection heat pump is connected with a third combustion spray gun, and a first combustion-supporting gas source is connected with a combustion-supporting gas inlet of the third combustion spray gun after heat exchange is carried out on the first combustion-supporting gas source through a cold side of the first dividing wall heat exchanger; a fourth injection heat pump is arranged between the second injection heat pump and the kiln shaft, the main flue is connected with a first inlet of the fourth injection heat pump through a fourth branch flue, a second inlet of the fourth injection heat pump is connected with a fourth combustion spray gun, and a second combustion-supporting gas source is connected with a combustion-supporting gas inlet of the fourth combustion spray gun after heat exchange is carried out on the second combustion-supporting gas source through a cold side of the second partition wall heat exchanger;
the first injection heat pump and the third injection heat pump, the second injection heat pump and the fourth injection heat pump are opened circularly and alternately; the first jet heat pump, the third jet heat pump, the second jet heat pump and the fourth jet heat pump circularly and alternately spray flames to the combustion chamber to heat the glass raw material in the melting tank, the rest working processes are the same as the working mode of the single-stage reversing horseshoe flame, and two stages of horseshoe flames formed by the first jet heat pump, the third jet heat pump, the second jet heat pump and the fourth jet heat pump are turned back to form the horseshoe flame and circularly and alternately reverse.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a horseshoe flame glass melting furnace for recycling flue gas, which adopts a combustion spray gun combined with an injection heat pump to heat glass materials in the melting furnace, wherein a part of flue gas is guided to enter a main flue along a flue gas outlet by the vacuum degree generated by the injection heat pump and then is guided into the injection heat pump by a branch flue, and combustion-supporting gas and fuel enter the injection heat pump from the combustion spray gun and are mixed with the introduced flue gas, and then are fully combusted above a combustion chamber. Meanwhile, the rest of the flue gas enters the dividing wall heat exchanger to preheat the combustion-supporting gas, so that the heat of the flue gas is effectively utilized, the heat loss caused by the discharged flue gas is reduced, a good energy-saving effect is achieved, and the pollution of high-temperature waste gas to the environment is reduced. Meanwhile, the first injection heat pump and the second injection heat pump can be started simultaneously according to actual needs, so that the melting furnace can operate in a double horse shoe flame working mode, the first injection heat pump and the second injection heat pump are started alternately in a circulating mode, so that the melting furnace can operate in a single-stage reversing horse shoe flame working mode, and the application range is wide.
Furthermore, the melting furnace can operate in a two-stage reversing horseshoe flame working mode by additionally arranging a third injection heat pump and a fourth injection heat pump, so that the application range is further expanded.
Furthermore, the flow rate of the combustion-supporting gas can be controlled through the first combustion-supporting gas valve and the second combustion-supporting gas valve, and then the operation condition of the melting furnace is controlled in real time.
Furthermore, the main flue is arranged below the top of the melting furnace, so that heat can be utilized while the heat dissipation capacity of the furnace body can be reduced.
Furthermore, the main flue is a bent pipe matched with the radian of the kiln top, so that the fluidity is good, and the convection heat exchange area can be increased.
Furthermore, the flow of the flue gas can be adjusted through the flue gas adjusting valve, and then the working parameters of the jet heat pump are adjusted in real time.
The working method of the horseshoe flame glass melting furnace for recycling the flue gas disclosed by the invention can be used for carrying out step-by-step gradient utilization on the flue gas, reducing the heat loss caused by the discharged flue gas, saving the fuel, reducing the operation cost and avoiding the pollution caused by directly discharging the high-temperature flue gas. And various working modes are provided, so that different practical production requirements are met.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic elevational view of the present invention;
FIG. 4 is a schematic illustration of the dual horseshoe flame mode of operation of the present invention;
FIG. 5 is a schematic diagram of the two-stage horseshoe flame mode of operation of the present invention.
In the figure: the device comprises a first combustion-supporting gas source 1, a first dividing wall heat exchanger 2, a first combustion-supporting gas valve 3, a first combustion spray gun 4, a first injection heat pump 5, a feeding channel 6, a combustion chamber 7, a fluid hole 8, a second injection heat pump 9, a second combustion spray gun 10, a second combustion-supporting gas valve 11, a second dividing wall heat exchanger 12, a second combustion-supporting gas source 13, a first branch flue 14, a total flue 15, a second branch flue 16 and a melting tank 17.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific embodiments:
referring to fig. 1, 2 and 3, the horseshoe flame glass melting furnace for recycling flue gas of the invention comprises a first combustion-supporting gas source 1, a first dividing wall heat exchanger 2, a first combustion spray gun 4, a first injection heat pump 5, a combustion chamber 7, a second injection heat pump 9, a second combustion spray gun 10, a second dividing wall heat exchanger 12, a second combustion-supporting gas source 13, a total flue 15 and a melting tank 17;
the first injection heat pump 5 and the second injection heat pump 9 are arranged at a fire-jet port at one side of the combustion chamber 7 and are positioned at two sides of the kiln shaft, and the combustion chamber 7 is respectively connected with the feeding channel 6 and the throat 8; one end of the main flue 15 is respectively connected with the heat flow inlets of the first dividing wall heat exchanger 2 and the second dividing wall heat exchanger 12, and the other end of the main flue 15 is connected with the flue gas discharge port of the combustion chamber 7; the main flue 15 is connected with a first inlet of the first injection heat pump 5 through a first branch flue 14, a second inlet of the first injection heat pump 5 is connected with the first combustion spray gun 4, and the first combustion-supporting gas source 1 is connected with a combustion-supporting gas inlet of the first combustion spray gun 4 after heat exchange is carried out on the cold side of the first dividing wall heat exchanger 2; the main flue 15 is connected with a first inlet of a second injection heat pump 9 through a second branch flue 16, a second inlet of the second injection heat pump 9 is connected with a second combustion spray gun 10, and a second combustion-supporting gas source 13 is connected with a combustion-supporting gas inlet of the second combustion spray gun 10 after heat exchange is carried out on the cold side of the second partition wall heat exchanger 12; the fuel inlets of the first and second combustion lances 4, 10 are connected to a fuel supply system.
In a preferred embodiment of the invention, a third injection heat pump is arranged between the first injection heat pump 5 and the kiln shaft, the main flue 15 is connected with a first inlet of the third injection heat pump through a third branch flue, a second inlet of the third injection heat pump is connected with a third combustion spray gun, and the first combustion-supporting gas source 1 is connected with a combustion-supporting gas inlet of the third combustion spray gun after heat exchange is carried out on the cold side of the first partition wall heat exchanger 2; a fourth injection heat pump is arranged between the second injection heat pump 9 and the kiln shaft, the main flue 15 is connected with a first inlet of the fourth injection heat pump through a fourth branch flue, a second inlet of the fourth injection heat pump is connected with a fourth combustion spray gun, and a second combustion-supporting gas source 13 is connected with a combustion-supporting gas inlet of the fourth combustion spray gun after heat exchange is carried out on the cold side of the second partition wall heat exchanger 12.
In a preferred embodiment of the invention, a first combustion-supporting gas valve 3 is arranged on the gas inlet pipe between the first dividing wall heat exchanger 2 and the combustion-supporting gas inlet of the first combustion spray gun 4; a second combustion-supporting gas valve 11 is arranged on the gas inlet pipe between the second wall-dividing heat exchanger 12 and the combustion-supporting gas inlet of the second combustion spray gun 10. And controlling the quantity of combustion-supporting gas required by each area according to the temperature distribution curve in the kiln.
In a preferred embodiment of the invention, the main flue 15 is arranged below the roof of the melting furnace. Preferably, the main flue 15 is a bent pipe and matches the arc of the kiln top.
In a preferred embodiment of the present invention, the first branch flue 14 and the second branch flue 16 are provided with flue gas regulating valves.
The working method of the horseshoe flame glass melting furnace for recycling the flue gas comprises the following working modes:
double horseshoe flame operating mode: as in fig. 4, the first ejector heat pump 5 and the second ejector heat pump 9 are turned on simultaneously; the first injection heat pump 5 and the second injection heat pump 9 spray flames to the combustion chamber 7 to heat glass raw materials in the melting tank 17, generated flue gas enters a main flue 15 from a flue gas outlet, a part of flue gas is guided into the first injection heat pump 5 and the second injection heat pump 9 through a first branch flue 14 and a second branch flue 16, and the rest of flue gas preheats the first combustion-supporting gas source 1 and the second combustion-supporting gas source 13 through the first dividing wall heat exchanger 2 and the second dividing wall heat exchanger 12; combustion-supporting gas and fuel in the first combustion spray gun 4 are mixed and then enter a first injection heat pump 5, combustion-supporting gas and fuel in the second combustion spray gun 10 are mixed and then enter a second injection heat pump 9, the first injection heat pump 5 and the second injection heat pump 9 are mixed with injected smoke and then injected above a combustion chamber 7 and are fully combusted, and two flames are folded back to form double horse hoof flames;
single-stage reversing horseshoe flame working mode: as in fig. 1, the first ejector heat pump 5 and the second ejector heat pump 9 are cyclically and alternately turned on; the first jet heat pump 5 and the second jet heat pump 9 circularly and alternately jet flames to the combustion chamber 7 to heat the glass raw material in the melting tank 17, the rest working processes are the same as the working mode of double horseshoe flames, and single-strand flames form the horseshoe flames after being turned back and are circularly and alternately reversed.
Two-stage reversing horseshoe flame working mode: as shown in fig. 5, the first injection heat pump 5 and the third injection heat pump, the second injection heat pump 9 and the fourth injection heat pump are cyclically and alternately started; the first injection heat pump 5, the third injection heat pump, the second injection heat pump 9 and the fourth injection heat pump circularly and alternately spray flames to the combustion chamber 7 to heat the glass raw material in the melting tank 17, the rest working processes are the same as the working mode of the single-stage reversing horseshoe flame, and the two-stage horseshoe flames formed by the first injection heat pump 5, the third injection heat pump, the second injection heat pump 9 and the fourth injection heat pump are turned back to form the horseshoe flame and circularly and alternately reverse.
It should be noted that the embodiment described in the example is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that several modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should be construed as the protection scope of the present invention.
Claims (8)
1. A horseshoe flame glass melting furnace with flue gas recycling is characterized by comprising a first combustion-supporting gas source (1), a first dividing wall heat exchanger (2), a first combustion spray gun (4), a first injection heat pump (5), a combustion chamber (7), a second injection heat pump (9), a second combustion spray gun (10), a second dividing wall heat exchanger (12), a second combustion-supporting gas source (13), a total flue (15) and a melting tank (17);
the first injection heat pump (5) and the second injection heat pump (9) are arranged at a fire nozzle at one side of the combustion chamber (7) and are positioned at two sides of the kiln shaft, and the combustion chamber (7) is respectively connected with the feed channel (6) and the throat (8); one end of the main flue (15) is respectively connected with the heat flow inlets of the first dividing wall heat exchanger (2) and the second dividing wall heat exchanger (12), and the other end of the main flue (15) is connected with the flue gas outlet of the combustion chamber (7); the main flue (15) is connected with a first inlet of a first injection heat pump (5) through a first branch flue (14), a second inlet of the first injection heat pump (5) is connected with a first combustion spray gun (4), and a first combustion-supporting gas source (1) is connected with a combustion-supporting gas inlet of the first combustion spray gun (4) after heat exchange through a cold side of a first dividing wall heat exchanger (2); the main flue (15) is connected with a first inlet of a second injection heat pump (9) through a second branch flue (16), a second inlet of the second injection heat pump (9) is connected with a second combustion spray gun (10), and a second combustion-supporting gas source (13) is connected with a combustion-supporting gas inlet of the second combustion spray gun (10) after heat exchange is carried out on the cold side of a second partition wall heat exchanger (12); the fuel inlets of the first combustion lance (4) and the second combustion lance (10) are connected to a fuel supply system.
2. The horseshoe flame glass melting furnace for recycling flue gas according to claim 1, characterized in that a third injection heat pump is arranged between the first injection heat pump (5) and the furnace shaft, the main flue (15) is connected with a first inlet of the third injection heat pump through a third branch flue, a second inlet of the third injection heat pump is connected with a third combustion spray gun, and the first combustion-supporting gas source (1) is connected with a combustion-supporting gas inlet of the third combustion spray gun after heat exchange through the cold side of the first partition wall heat exchanger (2); a fourth injection heat pump is arranged between the second injection heat pump (9) and the kiln shaft, the main flue (15) is connected with a first inlet of the fourth injection heat pump through a fourth branch flue, a second inlet of the fourth injection heat pump is connected with a fourth combustion spray gun, and a second combustion-supporting gas source (13) is connected with a combustion-supporting gas inlet of the fourth combustion spray gun after heat exchange is carried out on the cold side of the second partition wall heat exchanger (12).
3. The horseshoe flame glass melting furnace for recycling flue gas according to claim 1, characterized in that a first combustion-supporting gas valve (3) is arranged on a gas inlet pipe between the first dividing wall heat exchanger (2) and a combustion-supporting gas inlet of the first combustion spray gun (4); a second combustion-supporting gas valve (11) is arranged on the gas inlet pipe between the second wall-dividing heat exchanger (12) and the combustion-supporting gas inlet of the second combustion spray gun (10).
4. The horseshoe flame glass melting furnace with flue gas recycling according to claim 1, characterized in that the main flue (15) is arranged below the roof of the melting furnace.
5. The horseshoe flame glass melting furnace for recycling of flue gas according to claim 4, characterized in that the main flue (15) is a bent pipe and matches the arc of the furnace roof.
6. The horseshoe flame glass melting furnace for recycling of flue gas according to claim 1, characterized in that the first branch flue (14) and the second branch flue (16) are provided with flue gas regulating valves.
7. The working method of the horseshoe flame glass melting furnace for recycling the flue gas according to any one of claims 1 to 6, characterized by comprising the following working modes:
double horseshoe flame operating mode: simultaneously starting a first injection heat pump (5) and a second injection heat pump (9); the first injection heat pump (5) and the second injection heat pump (9) spray flames to the combustion chamber (7) to heat glass raw materials in the melting tank (17), generated flue gas enters the main flue (15) from a flue gas outlet, a part of the flue gas is introduced into the first injection heat pump (5) and the second injection heat pump (9) through the first branch flue (14) and the second branch flue (16), and the rest of the flue gas preheats the first combustion-supporting gas source (1) and the second combustion-supporting gas source (13) through the first partition wall heat exchanger (2) and the second partition wall heat exchanger (12); combustion-supporting gas and fuel in a first combustion spray gun (4) are mixed and then enter a first injection heat pump (5), combustion-supporting gas and fuel in a second combustion spray gun (10) are mixed and then enter a second injection heat pump (9), the first injection heat pump (5) and the second injection heat pump (9) are mixed with injected smoke and then are injected above a combustion chamber (7) for full combustion, and two flames form double horse hoof flames after being turned back;
single-stage reversing horseshoe flame working mode: the first injection heat pump (5) and the second injection heat pump (9) are opened circularly and alternately; the first jet heat pump (5) and the second jet heat pump (9) circularly and alternately spray flames to the combustion chamber (7) to heat the glass raw material in the melting tank (17), the rest working processes are the same as the working mode of double horseshoe flames, and single-strand flames form horseshoe flames after being folded back and are circularly and alternately reversed.
8. The method of operating a horseshoe flame glass melting furnace with flue gas recycling according to claim 7, further comprising a two-stage reversing horseshoe flame operating mode: a third injection heat pump is arranged between the first injection heat pump (5) and the kiln shaft, a main flue (15) is connected with a first inlet of the third injection heat pump through a third branch flue, a second inlet of the third injection heat pump is connected with a third combustion spray gun, and a first combustion-supporting gas source (1) is connected with a combustion-supporting gas inlet of the third combustion spray gun after heat exchange is carried out on the cold side of the first dividing wall heat exchanger (2); a fourth injection heat pump is arranged between the second injection heat pump (9) and the kiln shaft, a main flue (15) is connected with a first inlet of the fourth injection heat pump through a fourth branch flue, a second inlet of the fourth injection heat pump is connected with a fourth combustion spray gun, and a second combustion-supporting gas source (13) is connected with a combustion-supporting gas inlet of the fourth combustion spray gun after heat exchange is carried out on the cold side of the second partition wall heat exchanger (12);
the first injection heat pump (5) and the third injection heat pump, the second injection heat pump (9) and the fourth injection heat pump are opened circularly and alternately; the first injection heat pump (5), the third injection heat pump, the second injection heat pump (9) and the fourth injection heat pump circularly and alternately spray flames to the combustion chamber (7) to heat the glass raw material in the melting tank (17), the rest working process is the same as the working mode of single-stage reversing horseshoe flames, and two stages of horseshoe flames formed by the first injection heat pump (5), the third injection heat pump, the second injection heat pump (9) and the fourth injection heat pump are turned back to form the horseshoe flames and circularly and alternately reverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620374.XA CN114057378A (en) | 2021-12-27 | 2021-12-27 | Horseshoe flame glass melting furnace for recycling flue gas and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111620374.XA CN114057378A (en) | 2021-12-27 | 2021-12-27 | Horseshoe flame glass melting furnace for recycling flue gas and working method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114057378A true CN114057378A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111620374.XA Withdrawn CN114057378A (en) | 2021-12-27 | 2021-12-27 | Horseshoe flame glass melting furnace for recycling flue gas and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117720254A (en) * | 2023-11-01 | 2024-03-19 | 玻璃新材料创新中心(安徽)有限公司 | Transverse flame glass melting furnace based on thermochemical heat accumulation technology and method for controlling transverse flame by using same |
-
2021
- 2021-12-27 CN CN202111620374.XA patent/CN114057378A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117720254A (en) * | 2023-11-01 | 2024-03-19 | 玻璃新材料创新中心(安徽)有限公司 | Transverse flame glass melting furnace based on thermochemical heat accumulation technology and method for controlling transverse flame by using same |
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