A transverse flame glass melting furnace based on thermochemical heat storage technology and a method for controlling transverse flame thereof

Abstract

The present invention relates to a transverse flame glass melting furnace based on thermochemical heat storage technology and a method for controlling the transverse flame thereof. A transverse flame glass melting furnace device based on thermochemical heat storage technology comprises a first small furnace, a second small furnace, a first heat storage chamber, a second heat storage chamber, a flame chamber, a glass pool furnace, a first branch, a second branch, a collecting pipe, a third branch and a fourth branch. In the present invention, the original longitudinal flame combustion of hot synthesis gas is changed to transverse flame combustion, and a natural gas combustion scheme is added at the same time, which solves the problem of insufficient hot synthesis gas caused by insufficient thermochemical heat storage reaction and difficulty in maintaining the normal operation of the glass melting furnace. At the same time, the scale of the melting furnace is no longer limited by the structure of the small furnace, and the phenomenon of "material running" caused by the ejected flame is also avoided. In addition, the combustion scheme involved in the present invention will not cause the phenomenon of flame direction changing during operation, avoid flame reversal, and solve the problem of temperature fluctuation in the melting furnace caused by flame reversal.

Description

Technical Field

[0001] The invention relates to the technical field of glass manufacturing, in particular to a transverse flame glass melting furnace based on thermochemical heat storage technology and a method for controlling the transverse flame thereof. Background Art

[0002] Thermochemical Regenerative Heat (TCR) technology is a technology that recovers sensible heat from exhaust gas and uses it to reform hydrocarbon fuel into high enthalpy fuel. The reforming process uses waste heat, water vapor and CO2 to reform the fuel into a combustible mixed gas of hydrocarbon + CO + H2. TCR technology is applied to glass melting furnaces and is often implemented in a regenerator horseshoe flame furnace, that is, a glass tank furnace with a pair of small furnaces at the front end of the melting part, and the small furnaces are connected to a pair of regenerators. During operation, the flue gas passes through one side of the regenerator to heat the regenerator, collects part of the flue gas coming out of the regenerator and mixes it with gaseous fuel, and then feeds the resulting mixture into the regenerator on the other side that has been fully heated, thereby converting the mixture into hot synthesis gas by means of the endothermic reaction between the components in the mixture. The resulting hot synthesis gas is then fed from the regenerator formed therein to the furnace for combustion. At appropriate time intervals, the flame reversing operation is performed.

[0003] Natural gas (CH4) and part of the recovered flue gas (CO2+H2O) are introduced from the bottom of the regenerator on one side, and undergo a rapid endothermic reforming reaction at the high temperature of the regenerator to form hot synthesis gas (CO+H2). The reaction equation is as follows:

[0004] CH4+H2O → CO+3H2 (1)

[0005] CH4+CO2 → 2CO+2H2 (2)

[0006] The reforming reaction can proceed spontaneously at high temperatures without the need for additional catalysts. The reforming synthetic gas formed by the reaction is fed into the kiln through the regenerator. Under the action of combustion-supporting oxygen, it burns to form a highly luminous flame and effectively transfers heat to the batch materials and glass melt.

[0007] If the original fuel is natural gas, the TCR technology can increase its calorific value by 28%. When the reformed fuel is burned in the furnace, it can significantly improve the fuel utilization rate, improve the efficiency of the entire combustion system, and reduce exhaust emissions, achieving both energy-saving and emission-reduction effects. It is applied to glass melting furnaces and is known as the third technological revolution of glass melting furnaces.

[0008] There are still many problems in the existing technology of applying thermochemical heat storage technology to glass melting furnaces:

[0009] (1) Due to the kiln type setting of the horseshoe flame kiln, the design of generating flame through a small furnace on one side limits the furnace width and the scale of the kiln. The maximum melting area is about 90m 2 ; At the same time, it is also impossible to ensure that the thermal reforming reaction can generate enough hot synthesis gas to maintain the normal operation of the glass melting furnace. (2) The flame reversal brings about periodic temperature fluctuations and hot spot movement, which is not conducive to the establishment of the thermal system of the furnace. (3) The flame ejected from the burning has a pushing effect on the batch pile, causing the batch to "run away", which is not conducive to the melting and clarification of the batch.

[0010] Based on the above-mentioned shortcomings, the promotion and application of thermochemical heat storage technology in the glass industry is severely restricted, which is not conducive to the promotion of energy conservation and emission reduction in the glass industry. Summary of the invention

[0011] In view of the shortcomings of the prior art mentioned above, the present invention provides a horizontal flame glass melting furnace device based on thermochemical heat storage technology, which is used to solve the problems of maintaining the normal operation of the melting furnace, the temperature fluctuation and uneven heating of the glass melting furnace, and the "material leakage" problem of the batch materials that arise during the application of the existing thermochemical heat storage technology.

[0012] A first aspect of the present invention provides a horizontal flame glass melting furnace device based on thermochemical heat storage technology, comprising a first small furnace, a second small furnace, a first heat storage chamber, a second heat storage chamber, a flame chamber, a glass pool furnace, a first branch, a second branch, a collecting pipe, a third branch and a fourth branch, one end of the first small furnace is connected to the first heat storage chamber, and the other end is connected to the flame chamber, one end of the second small furnace is connected to the second heat storage chamber, and the other end is connected to the flame chamber, a first valve and a second valve are respectively provided on the first small furnace and the second small furnace, the first heat storage chamber and the second heat storage chamber are connected, one end of the first branch is connected to the first heat storage chamber, and the other end is connected to the collecting pipe, one end of the second branch is connected to the second heat storage chamber, and the other end is connected to the collecting pipe, a third valve and a fourth valve are respectively provided on the first branch and the second branch, the third branch and the fourth branch are respectively connected to the collecting pipe and extend in a direction close to the flame chamber, and the glass pool furnace is arranged at the bottom of the flame chamber.

[0013] Preferably, the third branch and the fourth branch are provided with a plurality of outlets on a side close to the flame chamber.

[0014] Preferably, a plurality of hot syngas burners are provided on the side walls of the flame chamber close to the third branch and the fourth branch, and the hot syngas burners correspond to the outlets one by one.

[0015] Preferably, a plurality of natural gas burners are provided on the flame chamber.

[0016] Preferably, the hot synthesis gas burner close to the third branch and the hot synthesis gas burner close to the fourth branch are cross-distributed on both sides of the flame chamber.

[0017] Preferably, the third branch and the fourth branch are symmetrically distributed about the central axis of the flame chamber.

[0018] Preferably, the first regenerator is provided with a first flue gas zone, a first heating zone and a first synthesis gas zone in sequence from bottom to top, and the first flue gas zone, the first heating zone and the first synthesis gas zone are connected in sequence;

[0019] Preferably, the second heat storage chamber is provided with a second flue gas zone, a second heating zone and a second synthesis gas zone in sequence from bottom to top, and the second flue gas zone, the second heating zone and the second synthesis gas zone are connected in sequence.

[0020] Preferably, the first smoke zone and the second smoke zone are communicated.

[0021] Preferably, the first syngas zone is connected to the first branch;

[0022] Preferably, the second syngas zone and the second branch are in communication.

[0023] Preferably, heat storage checker bricks are provided in the first heating zone and the second heating zone; preferably, the heat storage checker bricks are honeycomb-shaped.

[0024] A second aspect of the present invention provides a method for controlling a transverse flame, which is performed using the transverse flame glass melting furnace device described above.

[0025] Preferably, the steps include:

[0026] 1) Open the second valve and the third valve, and close the first valve and the fourth valve, so that the smoke generated in the flame chamber passes through the second small furnace and enters the second regenerator to heat the second regenerator;

[0027] 2) passing natural gas and part of the flue gas in the second regenerator in step 2) into the first regenerator to form hot synthesis gas;

[0028] 3) passing the hot synthesis gas obtained in step 2) into the collecting pipe through the first branch, and then conveying the hot synthesis gas to the flame chamber through the third branch and the fourth branch for horizontal flame combustion;

[0029] 4) closing the second valve and the third valve, and opening the first valve and the fourth valve, so that the smoke generated in the flame chamber passes through the first small furnace into the first regenerator to heat the first regenerator;

[0030] 5) passing natural gas and part of the flue gas in the first regenerator in step 4) into the second regenerator to form hot synthesis gas;

[0031] 6) The hot synthesis gas obtained in step 5) is introduced into the collecting pipe through the second branch, and then the hot synthesis gas is transported to the flame chamber through the third branch and the fourth branch for horizontal flame combustion.

[0032] The present invention has the following technical effects:

[0033] 1) The horizontal flame glass melting furnace based on thermochemical heat storage technology in the present invention will guide the formed hot synthesis gas to both sides of the flame chamber through the first branch, the second branch, the collecting pipe, the third branch and the fourth branch, and introduce it into the flame chamber through the hot synthesis gas burner, changing the original vertical flame combustion of the hot synthesis gas to horizontal flame combustion, and at the same time turning on the natural gas burners on both sides of the combustion chamber to form a heating method of natural gas-hot synthesis gas multi-fuel coordinated combustion, solving the dilemma of insufficient hot synthesis gas caused by insufficient thermochemical heat storage reaction, making it difficult to maintain the normal operation of the glass melting furnace. At the same time, by adopting the above-mentioned combustion method, the scale of the melting furnace is no longer limited by the structure of the small furnace, and the reasonable arrangement of the burner distribution can maintain the normal operation of the melting furnace.

[0034] 2) In the horizontal flame glass melting furnace based on thermochemical heat storage technology of the present invention, the flame direction will not change during the flue gas reversing operation, thus avoiding flame reversal, solving the problem of temperature fluctuation in the melting furnace caused by flame reversal, and facilitating the melting and clarification of the batch materials in the glass tank furnace.

[0035] 3) In the horizontal flame glass melting furnace based on the thermochemical heat storage technology of the present invention, the problem of "material leakage" caused by the ejected flame is solved.

[0036] 4) The present invention solves the shortcomings of thermochemical heat storage technology in the application process of the glass industry, while greatly improving the stability and operability of the melting furnace operation, which is beneficial to improving the quality of glass products, extending the service life of the melting furnace, and promoting the further promotion of thermochemical heat storage technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Shown is a schematic structural diagram of a transverse flame glass melting furnace based on thermochemical heat storage technology in the present invention.

[0038] Figure 2 Shown is a schematic diagram of the side structure of a horizontal flame glass melting furnace based on thermochemical heat storage technology in the present invention.

[0039] Component number description

[0040] 1 The first small furnace

[0041] 2 Second small furnace

[0042] 3. First heat storage chamber

[0043] 4 Second heat storage chamber

[0044] 5 Flame Chamber

[0045] 6 Glass tank kiln

[0046] 7 First Branch Road

[0047] 8 Second Branch Road

[0048] 9 Collection pipe

[0049] 10 Third Branch Road

[0050] 11 Fourth Branch Road

[0051] 12 First Valve

[0052] 13 Second valve

[0053] 14 Third valve

[0054] 15 Fourth valve

[0055] 16. Thermal Syngas Burner

[0056] 17 First smoke zone

[0057] 18. First heating zone

[0058] 19 First Syngas Zone

[0059] 20 Natural gas burners DETAILED DESCRIPTION

[0060] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0061] See also Figure 1 , 2. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0062] like Figure 1 , 2 As shown, the present invention is a horizontal flame glass melting furnace device based on thermochemical heat storage technology, comprising a first small furnace 1, a second small furnace 2, a first heat storage chamber 3, a second heat storage chamber 4, a flame chamber 5, a glass pool furnace 6, a first branch 7, a second branch 8, a collecting pipe 9, a third branch 10 and a fourth branch 11, one end of the first small furnace 1 is connected to the first heat storage chamber 3, and the other end is connected to the flame chamber 5, one end of the second small furnace 2 is connected to the second heat storage chamber 4, and the other end is connected to the flame chamber 5, and the first small furnace 1 and the second small furnace 2 are respectively provided with a first valve 1 2 and a second valve 13, the first regenerator 3 and the second regenerator 4 are connected, one end of the first branch 7 is connected to the first regenerator 3, and the other end is connected to the collection pipe 9, one end of the second branch 8 is connected to the second regenerator 4, and the other end is connected to the collection pipe 9, the first branch 7 and the second branch 8 are respectively provided with a third valve 14 and a fourth valve 15, the third branch 10 and the fourth branch 11 are respectively connected to the collection pipe 9 and extend in the direction close to the flame chamber 5, and the glass tank kiln 6 is arranged at the bottom of the flame chamber 5. The first regenerator 3 and the second regenerator 4 are alternately used to collect waste flue gas and synthesis heat.

[0063] The present invention adds a first branch 7, a second branch 8, a collecting pipe 9, a third branch 10, a fourth branch 11, a first valve 12, a second valve 13, a third valve 14, a fourth valve 15 and a plurality of matching hot synthesis gas burners 16 to the original device with thermochemical heat storage technology. Through the above structure, the formed hot synthesis gas can be drawn out from the upper space of the first heat storage chamber 3 or the second heat storage chamber 4 and guided to both sides of the flame chamber 5, and the hot synthesis gas can be introduced into the flame chamber 5 through the hot synthesis gas burner 16, thereby changing the original vertical flame combustion of the hot synthesis gas into horizontal flame combustion.

[0064] At the same time, by adopting the above-mentioned combustion method, the scale of the melting furnace is no longer limited by the structure of the small furnace, and the reasonable arrangement of the burner distribution can maintain the normal operation of the melting furnace. In the horizontal flame glass melting furnace based on the thermochemical heat storage technology of the present invention, the flame direction will not change during the flue gas reversing operation, which avoids the flame reversal, solves the problem of temperature fluctuation in the melting furnace caused by flame reversal, and is beneficial to the melting and clarification of the batch material in the glass tank furnace. In the horizontal flame glass melting furnace based on the thermochemical heat storage technology of the present invention, the phenomenon of "material running" caused by the ejected flame is solved.

[0065] The present invention solves the shortcomings of the thermochemical heat storage technology in the application process of the glass industry, and greatly improves the stability and operability of the melting furnace operation, which is beneficial to improving the quality of glass products, extending the service life of the melting furnace, and can promote the further promotion of the thermochemical heat storage technology.

[0066] In a preferred embodiment, the third branch 10 and the fourth branch 11 are provided with a plurality of outlets on the side close to the flame chamber 5. The side wall of the flame chamber 5 close to the third branch 10 and the fourth branch 11 is provided with a plurality of hot syngas burners 16, and the hot syngas burners 16 correspond to the outlets one by one. When the hot syngas is drawn out from the upper space of the first regenerator 3 or the second regenerator 4 to the two sides of the flame chamber 5, it enters the corresponding hot syngas burner 16 from the outlet, and burns and releases heat in the flame chamber 5. The burning flame is consistent with the direction of the feed and is perpendicular to the direction of the central axis of the glass tank kiln 6, thereby realizing horizontal flame combustion. At the same time, the problem of uncontrollable temperature system along the length of the kiln due to longitudinal flame combustion and the problem of "material running" caused by the flame ejected from the hot syngas combustion having a pushing effect on the batch pile are solved.

[0067] In a preferred embodiment, the hot syngas burner 16 near the third branch 10 and the hot syngas burner 16 near the fourth branch 11 are cross-distributed on both sides of the flame chamber 5. The third branch 10 and the fourth branch 11 are symmetrically distributed about the central axis of the flame chamber 5. The symmetrical distribution of the third branch 10 and the fourth branch 11 described in the present invention can ensure that the speed and content of the hot syngas reaching both sides of the flame chamber 5 are consistent; the symmetrical distribution of the hot syngas burners 16 can further ensure that the positions reaching the flame chamber 5 are symmetrical, and then when burning, the flames generated at symmetrical positions are relative, which can reduce the pushing effect of the flame ejected from the combustion on the batch pile.

[0068] In a preferred embodiment, a plurality of natural gas burners 20 are provided on the flame chamber 5. Turning on the natural gas burners 20 to assist in heating with natural gas combustion solves the problem of insufficient hot synthesis gas due to insufficient thermochemical heat storage reaction, making it difficult to maintain normal operation of the glass melting furnace.

[0069] In a preferred embodiment, the first regenerator 3 is provided with a first flue gas zone 17, a first heating zone 18 and a first synthesis gas zone 19 from bottom to top, and the first flue gas zone 17, the first heating zone 18 and the first synthesis gas zone 19 are connected in sequence; the second regenerator 4 is provided with a second flue gas zone, a second heating zone and a second synthesis gas zone from bottom to top, and the second flue gas zone, the second heating zone and the second synthesis gas zone are connected in sequence, the first flue gas zone 17 is connected with the second flue gas zone for conveying flue gas, the first synthesis gas zone 19 is connected with the first branch 7, and the second synthesis gas zone is connected with the second branch 8 for conveying the hot synthesis gas to both sides of the flame chamber 5. The first regenerator 3 and the second regenerator 4 are provided with natural gas inlets. When in use, the first regenerator 3 and the second regenerator 4 are used alternately, so that the heat in the waste flue gas can be fully utilized to preheat the regenerator where the hot synthesis gas reaction will occur. For example, in the first stage, the first regenerator 3 is used to collect the waste flue gas, and the second regenerator 4 is first preheated to form hot synthesis gas. The first regenerator 3 is heated when collecting the waste flue gas, which can be used to provide heat for forming hot synthesis gas in the next stage; in the second stage, the second regenerator 4 is used to collect the waste flue gas, and the first regenerator 3 is used to form hot synthesis gas. By constantly reversing in this way, the waste heat in the waste flue gas can be used to preheat the regenerator for forming synthesis gas, which is environmentally friendly and resource-efficient.

[0070] In a preferred embodiment, the first heating zone 18 and the second heating zone are provided with heat storage checker bricks; preferably, the heat storage checker bricks are honeycomb-shaped, and the heat storage checker bricks belong to the prior art and can be purchased on the market. The purpose is to fully absorb the waste heat in the waste flue gas and heat the first heat storage chamber 3 and the second heat storage chamber 4 to provide the heat required for the reaction of flue gas and natural gas to generate hot synthesis gas.

[0071] Example 1

[0072] The horizontal flame glass melting furnace device of the present invention is used, and the specific operation includes the following steps:

[0073] 1) Open the second valve 13 and the third valve 14, and close the first valve 12 and the fourth valve 15, so that the smoke generated in the flame chamber 5 passes through the second small furnace 2 and enters the second regenerator 4 to heat the second regenerator 4;

[0074] 2) passing natural gas and part of the flue gas in the second regenerator 4 in step 2) into the first regenerator 3 through the second flue gas zone to form hot synthesis gas;

[0075] 3) The hot synthesis gas obtained in the second regenerator 4 of step 2) is transported to the first branch 7 through the second synthesis gas zone, and then introduced into the collecting pipe 9, and then transported to the flame chamber 5 through the third branch 10 and the fourth branch 11 for horizontal flame combustion;

[0076] 4) closing the second valve 13 and the third valve 14, and opening the first valve 12 and the fourth valve 15, so that the smoke generated in the flame chamber 5 enters the first regenerator 3 through the first small furnace 1 to heat the first regenerator 3;

[0077] 5) passing natural gas and part of the flue gas in the first regenerator 3 in step 4) into the second regenerator 4 through the first flue gas zone 17 to form hot synthesis gas;

[0078] 6) The hot synthesis gas obtained in the first regenerator 3 of step 5) is transported to the second branch 8 through the first synthesis gas zone 19, and then introduced into the collecting pipe 9, and then the hot synthesis gas is transported to the flame chamber 5 through the third branch 10 and the fourth branch 11 for horizontal flame combustion.

[0079] The above switching process can be changed according to actual needs.

[0080] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A horizontal flame glass melting furnace device based on thermochemical heat storage technology, characterized in that: The invention comprises a first small furnace (1), a second small furnace (2), a first regenerator (3), a second regenerator (4), a flame chamber (5), a glass tank kiln (6), a first branch (7), a second branch (8), a collecting pipe (9), a third branch (10) and a fourth branch (11), wherein one end of the first small furnace (1) is connected to the first regenerator (3), and the other end is connected to the flame chamber (5), one end of the second small furnace (2) is connected to the second regenerator (4), and the other end is connected to the flame chamber (5), the first small furnace (1) and the second small furnace (2) are respectively provided with a first valve (12) and a second valve (13), and the The first heat storage chamber (3) and the second heat storage chamber (4) are connected, one end of the first branch (7) is connected to the first heat storage chamber (3), and the other end is connected to the collecting pipe (9), one end of the second branch (8) is connected to the second heat storage chamber (4), and the other end is connected to the collecting pipe (9), the first branch (7) and the second branch (8) are respectively provided with a third valve (14) and a fourth valve (15), the third branch (10) and the fourth branch (11) are respectively connected to the collecting pipe (9) and extend in a direction close to the flame chamber (5), and the glass tank kiln (6) is arranged at the bottom of the flame chamber (5); The third branch (10) and the fourth branch (11) are respectively provided with a plurality of outlets on one side close to the flame chamber (5); a plurality of thermal synthesis gas burners (16) are provided on the side wall of the flame chamber (5) close to the third branch (10) and the fourth branch (11), and the thermal synthesis gas burners (16) correspond to the outlets one by one; a plurality of natural gas burners (20) are provided on the flame chamber (5); the thermal synthesis gas burners (16) close to the third branch (10) and the thermal synthesis gas burners (16) close to the fourth branch (11) are cross-distributed on both sides of the flame chamber (5).

2. The horizontal flame glass melting furnace device according to claim 1, characterized in that: The third branch (10) and the fourth branch (11) are symmetrically distributed about the central axis of the flame chamber (5).

3. The horizontal flame glass melting furnace device according to claim 1, characterized in that: The first regenerator (3) is provided with a first flue gas zone (17), a first heating zone (18) and a first synthesis gas zone (19) in sequence from bottom to top, and the first flue gas zone (17), the first heating zone (18) and the first synthesis gas zone (19) are connected in sequence; And / or, the second heat storage chamber (4) is provided with a second flue gas zone, a second heating zone and a second synthesis gas zone in sequence from bottom to top, and the second flue gas zone, the second heating zone and the second synthesis gas zone are connected in sequence.

4. The horizontal flame glass melting furnace device based on thermochemical heat storage technology according to claim 3 is characterized in that: The first smoke zone (17) is in communication with the second smoke zone; and / or, the first synthesis gas zone (19) is connected to the first branch (7); And / or, the second synthesis gas zone is connected to the second branch (8).

5. The horizontal flame glass melting furnace device according to claim 3, characterized in that: Heat storage checker bricks are provided in the first heating zone (18) and the second heating zone.

6. The horizontal flame glass melting furnace device according to claim 5, characterized in that: The heat storage lattice bricks are in a honeycomb shape.

7. A method for controlling lateral flames, characterized in that: The control is performed by adopting the horizontal flame glass melting furnace device described in any one of claims 1 to 6.

8. The method for controlling lateral flames according to claim 7, characterized in that: The following steps are involved: 1) opening the second valve (13) and the third valve (14), and closing the first valve (12) and the fourth valve (15), so that the smoke generated by the flame chamber (5) passes through the second small furnace (2) and enters the second regenerator (4), thereby heating the second regenerator (4); 2) passing natural gas and part of the flue gas in the second regenerator (4) in step 2) into the first regenerator (3) to form hot synthesis gas; 3) The hot synthesis gas obtained in step 2) is introduced into the collecting pipe (9) through the first branch (7), and then the hot synthesis gas is transported to the flame chamber (5) through the third branch (10) and the fourth branch (11) for horizontal flame combustion; 4) closing the second valve (13) and the third valve (14), and opening the first valve (12) and the fourth valve (15), so that the smoke generated by the flame chamber (5) passes through the first small furnace (1) and enters the first regenerator (3), thereby heating the first regenerator (3); 5) passing natural gas and part of the flue gas in the first regenerator (3) in step 4) into the second regenerator (4) to form hot synthesis gas; 6) The hot synthesis gas obtained in step 5) is introduced into the collecting pipe (9) through the second branch (8), and then the hot synthesis gas is transported to the flame chamber (5) through the third branch (10) and the fourth branch (11) for horizontal flame combustion.

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