Green hydrogen energy process for glass melting furnace

Abstract

The invention discloses a green hydrogen energy technology for a glass melting furnace. The technology comprises the steps that S1, exhaust ports in the two sides of a tin bath intensively guide hydrogen-containing gas into a collecting pipe through leading-out pipelines; and S2, two discharge pipelines are connected to the collecting pipe, and the gas outlet ends of the two discharge pipelines extend into the small furnace and are located on the two sides in front of a spray gun of the small furnace correspondingly, so that the hydrogen-containing gas is combusted. According to the invention, the hydrogen-containing gas directly discharged from the tin bath is introduced into the front of the small furnace spray gun and is used as fuel, so that the purposes of greenness, energy conservation and economic benefit improvement are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of glass processing, and in particular to a green hydrogen energy process for a glass melting furnace. Background Art

[0002] The tin bath is a critical thermal engineering component of float glass production lines. To prevent oxidation of the molten tin within the bath, a protective gas is required. Furthermore, hydrogen is continuously introduced to reduce the oxidized tin at high temperatures. At high temperatures, some of the oxidized tin within the bath evaporates to the top of the bath, where it adheres to the lid, equipment within the bath, and electrical components. This not only impacts operation but also forms drips that affect glass quality. Currently, exhausting the bath's gas through an exhaust pipe, which dissipates the volatiles along with it, is an effective method. However, this exhaust contains a significant amount of hydrogen that has not yet reacted, resulting in a waste of resources. Summary of the Invention

[0003] In view of the above problems existing in the existing tin bath exhaust, the present invention aims to provide a green hydrogen energy process for glass melting furnaces with simple structure, low cost and high economic benefit.

[0004] The specific technical solutions are as follows:

[0005] A green hydrogen energy process for a glass melting furnace, comprising:

[0006] Step S1: The exhaust ports on both sides of the tin bath all drain the hydrogen-containing gas into the manifold through the outlet pipes;

[0007] Step S2: connecting two exhaust pipelines to the manifold, and extending the gas outlet ends of the two exhaust pipelines into the small furnace and being respectively located on both sides in front of the small furnace spray gun to burn the hydrogen-containing gas.

[0008] As a further improvement and optimization of this solution, two outlet pipes are respectively provided on both sides of the tin bath, one end of each outlet pipe is connected to the exhaust port of the tin bath, and the other end is connected to the manifold.

[0009] As a further improvement and optimization of this solution, a water cooling jacket for cooling the hydrogen-containing gas, a filter for filtering volatiles in the hydrogen-containing gas, and a throttle valve for adjusting the flow rate of the hydrogen-containing gas are sequentially arranged along the flow direction of the hydrogen-containing gas on each of the outlet pipelines.

[0010] As a further improvement and optimization of this solution, a first ball valve is provided between the water cooling jacket and the filter on each of the outlet pipelines.

[0011] As a further improvement and optimization of this solution, the two outlet pipes located on the same side of the tin bath are connected by a connecting pipe, and the connecting pipe is connected between the first ball valve and the water cooling jacket on the outlet pipe.

[0012] As a further improvement and optimization of this solution, each of the discharge pipelines is provided with a pneumatic shut-off valve, and the two pneumatic shut-off valves are connected to the compressed air pipe.

[0013] As a further improvement and optimization of this solution, a bypass is connected between the manifold and each of the discharge pipelines, and a second ball valve is provided on the bypass and the discharge pipelines located before and after the pneumatic shut-off valve.

[0014] As a further improvement and optimization of this solution, a pressure gauge is further provided on the bypass, and the pressure gauge is located on the rear side of the second ball valve.

[0015] As a further improvement and optimization of this solution, a one-way valve and a flame arrester are installed in sequence at the end of each exhaust pipeline.

[0016] As a further improvement and optimization of this solution, the end of each exhaust pipe located at the rear side of the flame arrester is connected to the small furnace spray gun through a metal hose.

[0017] Compared with the prior art, the above technical solution has the following positive effects:

[0018] In the present invention, the hydrogen-containing gas directly discharged from the tin bath is introduced into the front of the small furnace spray gun and used as fuel, thereby achieving the purpose of being green, energy-saving and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a pipeline flow of a green hydrogen energy process for a glass melting furnace according to the present invention;

[0020] In the attached figure: 1. Lead-out pipeline; 2. Manifold; 3. Discharge pipeline; 4. Bypass; 5. Pressure gauge; 6. Compressed air pipe; 7. Water cooling jacket; 8. First ball valve; 9. Filter; 10. Throttle valve; 11. Pneumatic shut-off valve; 12. Second ball valve; 13. Check valve; 14. Flame arrester; 15. Metal hose; 16. Connecting pipeline. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0022] Figure 1 This is a pipeline flow diagram of a green hydrogen energy process for a glass melting furnace of the present invention, as shown in FIG. Figure 1As shown, a green hydrogen energy process for a glass melting furnace in a preferred embodiment is shown, and the process includes: step S1: the exhaust ports on both sides of the tin bath are used to centrally guide the hydrogen-containing gas into the manifold 2 through the lead-out pipe 1; step S2: by connecting two discharge pipes 3 to the manifold 2, and extending the gas outlet ends of the two discharge pipes 3 into the small furnace, and respectively located on both sides in front of the small furnace spray gun, so as to make the hydrogen-containing gas burn.

[0023] In this embodiment, the hydrogen-containing gas directly discharged from the tin bath is introduced into the front of the small furnace spray gun and used as fuel, thereby achieving the purpose of being green, energy-saving and improving economic benefits.

[0024] Furthermore, as a preferred embodiment, two outlet pipes 1 are respectively provided on both sides of the tin bath, one end of each outlet pipe 1 is connected to the exhaust port of the tin bath, and the other end is communicated with the manifold 2 .

[0025] Furthermore, as a preferred embodiment, in order to improve the purity of the hydrogen-containing gas discharged from each outlet pipeline 1 and adjust the amount of exhaust gas, a water cooling jacket 7 for cooling the hydrogen-containing gas, a filter 9 for filtering volatiles in the hydrogen-containing gas, and a throttle valve 10 for adjusting the flow rate of the hydrogen-containing gas are sequentially arranged on each outlet pipeline 1 along the flow direction of the hydrogen-containing gas.

[0026] Furthermore, as a preferred embodiment, in order to facilitate the replacement of the filter 9, a first ball valve 8 is provided between the water cooling jacket 7 and the filter 9 on each outlet pipe 1. When the filter 9 is replaced, the corresponding first ball valve 8 is closed.

[0027] Furthermore, as a preferred embodiment, the two lead-out pipes 1 located on the same side of the tin bath are connected by a connecting pipe 16, and the connecting pipe 16 is connected between the first ball valve 8 and the water cooling jacket 7 on the lead-out pipe 1. The purpose is that when the filter 9 is replaced, the hydrogen led out from the corresponding lead-out pipe 1 can be led out from the other lead-out pipe 1 on the same side through the connecting pipe.

[0028] Furthermore, as a preferred embodiment, each discharge pipeline 3 is provided with a pneumatic shut-off valve 11 , and the two pneumatic shut-off valves 11 are connected to the compressed air pipe 6 .

[0029] Furthermore, as a preferred embodiment, a bypass 4 is connected between the manifold 22 and each discharge pipeline 3, and a second ball valve 12 is provided on the bypass 4 and the discharge pipeline 3 located before and after the pneumatic shut-off valve 11. Specifically, the second ball valves 12 on both sides of the pneumatic shut-off valve 11 and the bypass are both for shut-off function.

[0030] In this embodiment, the pneumatic shut-off valve 11 is opened and closed by the purified compressed air supplied by the compressed air pipe 6, ensuring that the air intake direction is consistent with the combustion rhythm of the small furnace mouth.

[0031] Furthermore, as a preferred embodiment, a pressure gauge 5 is further provided on the bypass 4. The pressure gauge 5 is located at the rear side of the second ball valve 12 and is used to detect pressure.

[0032] Furthermore, as a preferred embodiment, the end of each exhaust pipe is sequentially installed with a one-way valve 13 and a flame arrester 14. In order to prevent the flame of the small furnace mouth from entering the pipe during reversing, a one-way valve 13 and a flame arrester 14 are installed at the end of the delivery pipe.

[0033] Furthermore, as a preferred embodiment, the end of each exhaust pipe located at the rear side of the flame arrester 14 is connected to the small furnace spray gun through a metal hose 15.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A green hydrogen energy process for a glass melting furnace, characterized in that: The process comprises: Step S1: The exhaust ports on both sides of the tin bath all lead the hydrogen-containing gas to the manifold through the lead-out pipelines; Step S2: connecting two exhaust pipelines to the manifold, and extending the gas outlet ends of the two exhaust pipelines into the small furnace and being respectively located on both sides in front of the spray gun of the small furnace, so as to burn the hydrogen-containing gas.

2. The green hydrogen energy process for glass melting furnace according to claim 1, characterized in that: Two lead-out pipelines are respectively provided on both sides of the tin bath, one end of each lead-out pipeline is connected to the exhaust port of the tin bath, and the other end is communicated with the manifold.

3. The green hydrogen energy process for glass melting furnace according to claim 2, characterized in that: A water cooling jacket for cooling the hydrogen-containing gas, a filter for filtering volatiles in the hydrogen-containing gas, and a throttle valve for adjusting the flow of the hydrogen-containing gas are sequentially arranged along the flow direction of the hydrogen-containing gas on each of the lead-out pipelines.

4. The green hydrogen energy process for glass melting furnace according to claim 3, characterized in that: A first ball valve is provided between the water cooling jacket and the filter on each outlet pipeline.

5. The green hydrogen energy process for glass melting furnace according to claim 4, characterized in that: The two outlet pipelines located on the same side of the tin bath are connected by a connecting pipeline, and the connecting pipeline is connected between the first ball valve and the water cooling jacket on the outlet pipeline.

6. The green hydrogen energy process for glass melting furnace according to claim 1, characterized in that: Each of the discharge pipelines is provided with a pneumatic shut-off valve, and the two pneumatic shut-off valves are connected to a compressed air pipe.

7. The green hydrogen energy process for glass melting furnace according to claim 6, characterized in that: A bypass is also connected between the manifold and each of the discharge pipelines, and a second ball valve is provided on the bypass and the discharge pipelines located before and after the pneumatic shut-off valve.

8. The green hydrogen energy process for glass melting furnace according to claim 7, characterized in that: The bypass is also provided with a pressure gauge, which is located at the rear side of the second ball valve.

9. The green hydrogen energy process for glass melting furnace according to claim 1, characterized in that: A one-way valve and a flame arrester are installed at the end of each exhaust pipeline in sequence.

10. The green hydrogen energy process for glass melting furnace according to claim 9, characterized in that: The end of each exhaust pipeline located at the rear side of the flame arrester is connected to the small furnace spray gun through a metal hose.

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