Float glass melting furnace with oxygen-enriched combustion-supporting device
By introducing an oxygen-enriched combustion aid into the float glass melting furnace, the oxygen content is increased by using oxygen-enriched air, which solves the problem of nitrogen absorbing heat and achieves improved combustion efficiency and resource conservation.
Patent Information
- Application Number
- CN202520048321.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-09
AI Technical Summary
In existing float glass melting furnaces, the combustion of fuel requires oxygen from the air, but nitrogen absorbs heat, resulting in heat waste, and the oxygen-enriched air is not effectively utilized, leading to low combustion efficiency.
An oxygen-enriched combustion aid device is used to collect oxygen-enriched air and send it into the regenerator of the furnace. The use of oxygen is controlled by a reversing valve to increase the oxygen content in the combustion air, reduce the nitrogen content, and reduce the amount of waste gas and heat loss.
It increases combustion temperature and efficiency, reduces exhaust gas volume, saves resources, and improves the thermal efficiency of the melting furnace.
Smart Images
Figure CN223674498U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to glass manufacturing technical field, concretely is a kind of float glass melting furnace with oxygen-enriched combustion-supporting device. BACKGROUND
[0002] In float glass melting furnace, the melting of glass is to heat the batch material by high temperature generated after the complete combustion of fuel, and after a series of physical and chemical changes, liquid glass is formed. The combustion of fuel needs oxygen in air for combustion-supporting, nitrogen in air does not participate in combustion, but will absorb heat, causing waste of heat. Therefore, how to improve the combustion temperature of fuel, reduce the amount of nitrogen in combustion-supporting air, and at the same time reduce the amount of waste gas generated after combustion, becomes the key to improve the combustion efficiency of glass melting furnace. SUMMARY
[0003] The utility model discloses a kind of float glass melting furnaces with oxygen-enriched combustion-supporting device, to solve the problem raised in the above background technology.
[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of float glass melting furnace with oxygen-enriched combustion-supporting device, including molten pool and the heat storage chamber being arranged at the both sides of molten pool, the bottom side of the molten pool is equipped with ventilation kiln hole, the ventilation kiln hole is connected with heat storage chamber, the bottom of the heat storage chamber is equipped with ash pit, the upper side of the ash pit is equipped with grid body, the ash pit is equipped with ash door, the ash door is connected with oxygen-enriched combustion-supporting device, the oxygen-enriched combustion-supporting device includes conveying pipeline, one end of the conveying pipeline is connected with ash door, the other end is connected with float glass production line nitrogen hydrogen station.
[0005] Preferably, the conveying pipeline includes main pipeline and two branch pipelines, one end of the two branch pipelines is equipped with branch pipeline, and the branch pipeline is connected with the ash pit.
[0006] Preferably, the ash pits are sequentially arranged as several, the branch pipeline is three, and the three branch pipelines are respectively connected with the first three ash pits.
[0007] Preferably, the two branch pipelines are respectively equipped with reversing valve.
[0008] Preferably, the main pipeline is equipped with stop valve.
[0009] Compared with the prior art, the utility model has the beneficial effects that: the utility model can improve the oxygen content in combustion-supporting air and reduce the nitrogen content in combustion-supporting air by setting oxygen-enriched combustion-supporting device, and can also reduce the amount of waste gas after combustion and the heat taken away by waste gas, improve the combustion efficiency of melting furnace, and save resources. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1The utility model discloses oxygen enrichment combustion device structure schematic view.
[0011] Figure 2 The utility model discloses float glass furnace structure.
[0012] In the drawing: 1, the molten pool;2, the heat storage room;3, the ventilation kiln hole;4, the ash removal pit;5, the lattice;6, the ash removal door;7, oxygen enrichment combustion device;8, the conveying pipeline;81, the main line;82, the branch line;83, the branch line;9, the reversing valve;10, the stop valve. Specific implementation
[0013] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of the utility model protection.
[0014] The tin bath is provided on the float glass production line, and the tin bath needs the mixed gas of nitrogen and hydrogen to be the protection gas, therefore the float glass furnace is also provided with the nitrogen hydrogen station to prepare nitrogen. The oxygen enrichment air with the oxygen content of 33%~35% is produced in the preparation process of nitrogen. The float glass furnace of prior art handles the oxygen enrichment air and discharges into the atmosphere in the way of venting, which can cause a lot of resource waste to the production line, therefore the part of oxygen enrichment air is collected and sent to the heat storage room of the furnace, which can improve the oxygen content in the combustion air, reduce the nitrogen content in the combustion air. After the oxygen content increases, the waste gas quantity and the heat carried by the waste gas after combustion can be reduced, and the combustion efficiency of the furnace is improved.
[0015] Please refer to Figure 1 The utility model provides a kind of technical scheme: a kind of float glass furnace with oxygen enrichment combustion device, including molten pool 1 and the heat storage room 2 being set in the both sides of molten pool, the bottom side of the molten pool 1 is equipped with ventilation kiln hole 3, the ventilation kiln hole 3 is connected with heat storage room 2, the bottom of the heat storage room 2 is equipped with ash removal pit 4, the upper side of the ash removal pit 4 is equipped with lattice 5, the ash removal pit 4 is equipped with ash removal door 6, the ash removal door 6 is connected with oxygen enrichment combustion device 7, the oxygen enrichment combustion device 7 includes conveying pipeline 8, one end of the conveying pipeline 8 is connected with ash removal door 6, the other end is connected float glass production line nitrogen hydrogen station.
[0016] In an embodiment of the utility model, the conveying pipeline 8 includes main line 81 and two branch lines 82, one end of two branch lines 82 is equipped with branch line 83, and the branch line 83 is connected with the ash removal pit 4.
[0017] In an embodiment of the utility model, the ash pit 4 is sequentially arranged as a plurality of, the branch pipeline 83 is three, three branch pipeline 83 is connected with the first three ash pit 4 respectively.
[0018] In an embodiment of the utility model, two branch pipeline 82 is equipped with reversing valve 9 respectively.
[0019] In an embodiment of the utility model, the main pipeline 81 is equipped with stop valve 10.
[0020] In an embodiment of the utility model, please refer to Figure 2 , the oxygen-enriched air generated by the float glass production line nitrogen hydrogen station is delivered to branch pipeline 83 through main pipeline 81 via branch pipeline 82, then is sent to the inside of ash pit 4, is respectively passed to 1#, 2#, 3# regenerator 2 bottom ash door 6, opens a hole on ash door 6, and branch pipeline 83 sends the oxygen-enriched air into ash pit 4. The reversing valve 9 on two branch pipeline 82 acts together with the reversing operation of the melting furnace. When the bottom of left regenerator 2 passes combustion-supporting air, the left reversing valve 9 opens, and the oxygen-enriched air is passed in. The right oxygen-enriched air pipeline reversing valve 9 is closed, and the regenerator 2 passes exhaust gas. After reversing, when the bottom of right regenerator 2 passes combustion-supporting air, the right reversing valve 9 is opened, and the oxygen-enriched air is passed in, and the left reversing valve 9 is closed. In this way, the oxygen-enriched air can be safely used, and the increased oxygen molecules can improve the combustion temperature of the flame and accelerate the combustion speed of the flame. The heat loss of heating nitrogen gas is reduced, the excess air coefficient can be effectively reduced, the heat energy loss of exhaust smoke is greatly reduced, and the thermal efficiency of the kiln is improved.
[0021] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A float glass furnace with oxygen-enriched combustion-supporting device, comprising a molten pool and regenerators arranged on both sides of the molten pool, a ventilation furnace hole is arranged on the bottom side of the molten pool, and the ventilation furnace hole is connected with the regenerators, characterized in that: The bottom of the heat storage chamber is provided with an ash removal pit, the upper side of the ash removal pit is provided with a grid body, the ash removal pit is provided with an ash removal door, the ash removal door is connected with an oxygen-enriched combustion-supporting device, and the oxygen-enriched combustion-supporting device comprises a conveying pipeline.
2. A float glass furnace with oxygen-enriched combustion-supporting device according to claim 1, characterized in that: The conveying pipeline comprises a main pipeline and two branch pipelines, and one end of each of the two branch pipelines is provided with a branch pipeline.
3. A float glass furnace with oxygen-enriched combustion-supporting device according to claim 2, characterized in that: The ash removal pit is sequentially provided with a plurality of ash removal pits, and the branch pipeline is three, and the three branch pipelines are connected with the first three ash removal pits, respectively.
4. A float glass furnace with oxygen-enriched combustion-supporting device according to claim 3, characterized in that: The two branch pipelines are respectively provided with a reversing valve.
5. A float glass furnace with oxygen-enriched combustion-supporting device according to claim 4, characterized in that: The main pipeline is provided with a stop valve.