CN101117263B - Thermal cycling energy-saving glass kiln furnace - Google Patents
Thermal cycling energy-saving glass kiln furnace Download PDFInfo
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- CN101117263B CN101117263B CN200610104065A CN200610104065A CN101117263B CN 101117263 B CN101117263 B CN 101117263B CN 200610104065 A CN200610104065 A CN 200610104065A CN 200610104065 A CN200610104065 A CN 200610104065A CN 101117263 B CN101117263 B CN 101117263B
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- kiln
- recovery tube
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Abstract
The invention relates to an energy-saving equipment, in particular to a thermal cycling energy-saving glass kiln. The common characteristics of the kiln with other kilns are that: the kiln is providedwith a fusing kiln 1 and annealing kiln 3; the fusing kiln 1 is provided with a combustion air inlet 12; the annealing kiln 3 is provided with an air inlet 4 and an air outlet 5. The different characteristics of the kiln with other kilns are that: a recovery pipe 6 is arranged between the air outlet 5 of the annealing kiln 3 and the combustion air inlet 12 of the fusing kiln 1; one end of the recovery pipe 6 which is an exhaust inlet 7 is opposite to the air outlet 5 of the annealing kiln; the other end of the recovery pipe 6 is communicated with the combustion air inlet 12 of the fusing glass kiln 1. With the adoption of the devices, hot blast expelled from the annealing kiln 3 can be sucked into the fusing kiln 1 and provide heat for the fusing kiln 1 while helping combustion, thereby the fuel consumption is greatly lowered, the heat accumulating capacity of the kiln is increased, the temperature stability of the fusing kiln is improved, and the smelting quality of the kiln is improved.
Description
Technical field the present invention relates to a kind of energy saver, promptly a kind of thermal cycling energy-saving glass kiln furnace.
Background technology high temperature hot melt is the main technique of present glass production, and this technology makes frit be molten into liquid by high temperature, makes glassy product through moulding and temperature-fall period again.Though it is a lot of to finish the kiln kind of this technology, these kilns all have a common characteristic, promptly all are provided with fusing kiln and annealing furnace.By fuel combustion, cause the high temperature more than 1570 ℃ in the fusing kiln, the molten glass raw material again through moulding process, enters annealing furnace then.Annealing furnace squeezes into cold wind by blast inlet and glass carries out heat exchange, by exhaust outlet hot blast is discharged again.From the fusing kiln to annealing furnace, glass becomes the normal temperature product from high temperature solution, during have a large amount of heat energy to be taken away by wind.Float glass process kiln with 400 tons of sheet glass of a daily output is an example, and the air quantity that per hour just has more than 40,000 cubic metre is by annealing furnace, and the outlet wind-heat can reach 240 ℃, is equivalent to the heat of the above heavy oil combustion of 120 kg.At present, owing to do not have retrieving arrangement, this part heat all to be discharged in the atmosphere, having thrown away in vain.In addition, a regenerator and row's oil combustion gun and the combustion-supporting air port of a row are respectively established in the fusing kiln both sides of existing kiln, during work, one side ejection fuel and combustion air burn, the regenerator of opposite side is carried out accumulation of heat, and regularly alternation of both sides is to keep the stable of kiln temperature., owing to be subjected to the restriction in place, regenerator can not be too big, and the stability of kiln temperature often is restricted.
The purpose of this invention is to provide a kind of thermal cycling energy-saving glass kiln furnace that the hot blast that lear is discharged can be recycled.
Above-mentioned purpose is realized by following technical scheme: develop a kind of thermal cycling energy-saving glass kiln furnace, this kiln also is provided with fusing kiln and annealing furnace, also be provided with combustion-supporting air port on the fusing kiln, also be provided with blast inlet and exhaust outlet on the annealing furnace, different is: between the combustion-supporting air port of the exhaust outlet of annealing furnace and fusing kiln the hot blast recovery tube is housed, one end of recovery tube is relative with the exhaust outlet of annealing furnace, and the other end communicates with the combustion-supporting air port of fusing kiln.
Between said recovery tube and the combustion-supporting air port of fusing kiln burner blower is housed, the inlet and the recovery tube of burner blower are joined, and the outlet of burner blower communicates with combustion-supporting air port.
Adopt the glass furnace of said apparatus, the hot blast that annealing furnace is discharged sucks the fusing kiln, provides heat energy for the fusing kiln in combustion-supporting, both can reduce the consumption of fuel significantly, strengthened the heat storage performance of fusing kiln again, made the kiln temperature more stable, the quality of melting therefore improves.
Description of drawings embodiments of the invention and concrete structure are provided by the following drawings:
Fig. 1 is the front view of first kind of embodiment;
Fig. 2 is the vertical view of first kind of embodiment;
Fig. 3 is the local enlarged front view of first kind of embodiment parts;
Fig. 4 is the local amplification plan view of first kind of embodiment parts;
Fig. 5 is the local enlarged front view of first kind of embodiment parts;
Fig. 6 is the local amplification plan view of first kind of embodiment parts;
Fig. 7 is the front view of second kind of embodiment;
Fig. 8 is the local enlarged front view of second kind of embodiment parts;
Fig. 9 is the local amplification plan view of second kind of embodiment parts;
Figure 10 is the front view of the third embodiment;
Figure 11 is the local enlarged front view of the third embodiment parts.
Among the figure as seen: the fusing kiln 1, molten tin bath 2, annealing furnace 3, blast inlet 4, exhaust outlet 5, recovery tube 6, air suction inlet 7, sheet glass 8, transfer roller 9, burner blower 10, support 11, combustion-supporting air port 12, oil atomizer gun 13, regenerator 14, relief valve 15, suspended hood 16.
Embodiment is introduced four kinds of embodiment below in conjunction with accompanying drawing:
First kind of embodiment: with the float glass process kiln is example.As shown in Figure 1, 2, this float glass furnace also is to be made of fusing kiln 1, molten tin bath 2, annealing furnace 3, blast inlet 4, exhaust outlet 5 etc., whole production line is bearing in the air by support 11, fusing kiln 1 is surrounded by kiln lid and sidewall, respectively there is row combustion-supporting air port 12, oil atomizer gun 13 and a regenerator 14 both sides, oil jetting combustion is taken turns in both sides during work, and regenerator is taken turns accumulation of heat and heat release, so that the kiln temperature is relatively stable.Frit becomes solution through the high temperature of 1570 ℃ in fusing kiln, flows into molten tin bath 2, owing to proportion gently floats over above the tin liquor, forms the metal level of level, evens up and enter annealing furnace through edge machine again.There are a plurality of transfer rollers 9 the annealing furnace the inside, sheet glass 8 moves ahead on roller, all has blast inlet 4 and exhaust outlet 7 in the side up and down of annealing furnace, and blast inlet 4 injects ambient air by blower fan in kiln, these air and sheet glass carry out heat exchange and become hot gas, are extracted out outside the kiln by the blower fan of exhaust outlet 5 again.Generally speaking, annealing furnace is divided into three districts of ABC from front to back, is example with the medium-sized production line measured data of producing 400 tons of sheet glass daily, and average annual blower fan aperture is calculated A district air draft 7742m by 75%
3/ h, 200 ℃ of wind-warm syndrome, B district air draft 11959m
3/ h, 220 ℃ of wind-warm syndrome, C district air draft 22477m
3/ h, 60 ℃ of wind-warm syndrome.Then have:
Q＝L×Z×R×D×(T
2-T
1)
Y＝Q÷A÷B
In the formula: Q is heat energy (J);
L is a hour wind flow (m
3/ h);
Z is air specific weight (1.29kg/m
3);
R is specific heat (1.01KJ/kg);
D is average annual aperture (%);
T2 be hot blast temperature (℃);
T1 be envrionment temperature (℃);
Y is heavy oil amount (kg);
A is energy and calorie conversion factor (4.2J);
B is heavy oil combustion value (9600 kilocalories/kg).
Press following formula calculating, the heat of per hour draining closes the heavy oil 120.28kg of thermal value 9600 kilocalories/kg, daily loss heavy oil 2886kg, and 1053 tons of year weight losses oil calculate by 3650 yuan/T of existing oil price, and year is with a toll of 3845822 yuan.
In order to reclaim this part heat, present embodiment is respectively adorned a recovery tube 6 up and down annealing furnace 3, and shown in Fig. 3,4, the main body of recovery tube 6 is pipelines of a kind of elongate hollow, front end is provided with three air suction inlets 7, connects with three exhaust outlets 5 with 3 three districts of annealing furnace respectively.Shown in Fig. 5,6, the other end of recovery tube 6 joins with the blast inlet of the burner blower 10 of fusing kiln 1.During work, the hot blast that annealing furnace 3 is discharged enters fusing kiln 1 through recovery tube 6, can make heat increase in the kiln, reduces the consumption of fuel oil.Simultaneously,, strengthened the stability of kiln temperature, had very big benefit for improving the quality of products because this mode has equaled to strengthen the capacity and the constant temperature function of regenerator.
Second kind of embodiment: increased after the recovery tube 6, constituted a new heat circulating system, the gas flow of system's various piece should be coordinated mutually, could guarantee the normal operation of total system.In general, the suitable scope of the gas flow of this system's various piece is than broad, but in order to satisfy higher requirement, this example has adopted following adjusting pressure measure:
Shown in Fig. 7,8, between the air suction inlet 7 of recovery tube 6 and the exhaust outlet 5 of annealing furnace 3, relief valve 15 is housed, under certain pressure, but auto-switch. the wind speed in recovery tube 6 is too high, and just negative pressure is too high, enters cold wind in the kiln and does not fully carry out heat exchange and just be sucked away, exhaust outlet 5 temperature of outgoing airs reduce or when negative pressure occurring, otherwise relief valve 15 cuts out current limliting., the wind speed in recovery tube 6 is low excessively, and exhaust outlet 5 is obstructed, relief valve 15 can be opened, to the atmosphere air draft.
Shown in Fig. 8,9, between the inlet of recovery tube 6 and fusing kiln burner blower 10, relief valve 15 is housed, under certain pressure, but auto-switch.When recovery tube 1 aspirated pressure exceeds standard, cause the atmosphere in the fusing kiln unbalance, the relief valve 15 between recovery tube 1 and the fusing kiln burner blower 10 cuts out current limliting.When recovery tube 1 aspirated pressure deficiency, in the time of can not satisfying fusing kiln internal combustion needs, relief valve 15 is opened, and sucks ambient air, replenishes not enough.
The third embodiment: shown in Figure 10,11, between the air suction inlet 7 of recovery tube 6 and the exhaust outlet 5 of annealing furnace, and between the inlet of recovery tube 6 and fusing kiln burner blower 10, all adopt relatively and not exclusively airtight open architecture, equally also can guarantee the balance of system pressure.Certainly, the mode of this open architecture can have many kinds, what introduce among the figure is to have adorned a kind of umbrella shape suspended hood 16 below the air suction inlet 7 of recovery tube 6, below the exhaust outlet 5 of annealing furnace covered on, magnetism is too big in recovery tube 6, be negative pressure value when higher, when air draft was not enough in the kiln, air suction inlet 7 can suck ambient air.When recovery tube 6 internal pressures were higher, when the hot blast of exhaust outlet 5 can not all enter recovery tube 6, remainder can enter atmosphere.In addition, this suspended hood 16 also can be contained in annealing furnace other positions in addition of recovery tube 6 processes, and the heat that these places are shed reclaims in the lump.
In like manner, can insert the end of recovery tube 6 on the tube wall of the blast pipe that melts kiln burner blower 10, the air intake pipe orifice of burner blower opens wide to environment, when reclaiming the hot blast deficiency, can suck the replenish air deficiency from environment, when the recovery hot blast is excessive, can be discharged into atmosphere to unnecessary hot blast, thereby keeps the pressure equilibrium of total system.
The 4th kind of embodiment: suction fan is equipped with on the top at the suspended hood 16 of recovery tube 6, and controls the air output of each air suction inlet 2 by the frequency conversion stored program controlled, promptly can better reclaim the heat of each point, the pressure equilibrium that keeps total system.
Claims (9)
1. thermal cycling energy-saving glass kiln furnace, this kiln is provided with fusing kiln (1) and annealing furnace (3), the fusing kiln is provided with combustion-supporting air port (12), annealing furnace (3) is provided with blast inlet (4) and exhaust outlet (5), it is characterized in that: between the combustion-supporting air port (12) of the exhaust outlet (5) of annealing furnace (3) and fusing kiln (1), hot blast recovery tube (6) is housed, one end of recovery tube (6) is relative with the exhaust outlet (5) of annealing furnace (3), and the other end communicates with the combustion-supporting air port (12) of fusing kiln (1).
2. thermal cycling energy-saving glass kiln furnace according to claim 1, it is characterized in that: between said recovery tube (6) and the fusing combustion-supporting air port of kiln (1) (12) burner blower (10) is housed, the inlet of burner blower (10) and recovery tube (6) are joined, and the outlet of burner blower (10) communicates with combustion-supporting air port (12).
3. thermal cycling energy-saving glass kiln furnace according to claim 1, it is characterized in that: said recovery tube (a 6) end relative with the exhaust outlet (5) of annealing furnace (3) has air suction inlet (7), between the exhaust outlet (5) of annealing furnace (3) and the air suction inlet (7) of recovery tube (6) relief valve (15) is housed.
4. thermal cycling energy-saving glass kiln furnace according to claim 2 is characterized in that: relief valve (15) is equipped with at the junction surface of the blast inlet of said burner blower (10) and recovery tube (6) one ends.
5. thermal cycling energy-saving glass kiln furnace according to claim 1, it is characterized in that: between the combustion-supporting air port (12) of said recovery tube (6) and fusing kiln (1) burner blower (10) is housed, the end that recovery tube (6) is led to fusing kiln (1) is plugged on the tube wall of burner blower (10) blast pipe one side, and the mouth of pipe of burner blower (10) blast pipe end opens wide.
6. thermal cycling energy-saving glass kiln furnace according to claim 1 is characterized in that: the end of the air suction inlet (7) of said recovery tube (6), the umbrella suspended hood (16) relative with the exhaust outlet (5) of annealing furnace (3) is housed.
7. thermal cycling energy-saving glass kiln furnace according to claim 1, it is characterized in that: between the combustion-supporting air port (12) of said recovery tube (6) and fusing kiln (1) burner blower (10) is housed, recovery tube (6) one ends are equipped with the umbrella suspended hood (16) relative with the blast inlet of burner blower (10).
8. thermal cycling energy-saving glass kiln furnace according to claim 6 is characterized in that: said suspended hood (16) is contained in annealing furnace (3) position in addition of recovery tube (6) process.
9. thermal cycling energy-saving glass kiln furnace according to claim 7 is characterized in that: at the top of the suspended hood (16) of recovery tube (6) one ends assembling suction fan, and the frequency conversion program control device is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610104065A CN101117263B (en) | 2006-08-02 | 2006-08-02 | Thermal cycling energy-saving glass kiln furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610104065A CN101117263B (en) | 2006-08-02 | 2006-08-02 | Thermal cycling energy-saving glass kiln furnace |
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| CN101117263A CN101117263A (en) | 2008-02-06 |
| CN101117263B true CN101117263B (en) | 2010-05-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830629B (en) * | 2010-03-22 | 2013-01-02 | 中国南玻集团股份有限公司 | Heat-cycling and energy-saving system of glass kiln |
| CN102080149B (en) * | 2010-11-26 | 2014-12-24 | 杭州金舟科技股份有限公司 | Energy-saving full-automatic and atmosphere-controllable horizontal type annealing production line for discs |
| CN108296302B (en) * | 2017-12-29 | 2020-04-07 | 安徽高德铝业有限公司 | Door and window aluminium alloy vacuum pouring control system |
| CN114593603A (en) * | 2022-03-14 | 2022-06-07 | 白兆金 | Waste heat recycling system and control method thereof |
| CN117606241B (en) * | 2024-01-18 | 2024-04-12 | 山西安仑化工有限公司 | Carbon black reaction furnace capable of switching oil gun on line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135904A (en) * | 1976-11-15 | 1979-01-23 | Kawasaki Jukogyo Kabushiki Kaisha | Premelting method for raw materials for glass and apparatus relevant thereto |
| CN2492819Y (en) * | 2001-05-11 | 2002-05-22 | 于志贤 | Multiple-loop heat recovering smoke dust eliminator for plate glass kiln |
| CN2670888Y (en) * | 2003-12-31 | 2005-01-12 | 山西民兴实业有限公司 | Waste heat recovering and using system for annular brick kiln |
-
2006
- 2006-08-02 CN CN200610104065A patent/CN101117263B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135904A (en) * | 1976-11-15 | 1979-01-23 | Kawasaki Jukogyo Kabushiki Kaisha | Premelting method for raw materials for glass and apparatus relevant thereto |
| CN2492819Y (en) * | 2001-05-11 | 2002-05-22 | 于志贤 | Multiple-loop heat recovering smoke dust eliminator for plate glass kiln |
| CN2670888Y (en) * | 2003-12-31 | 2005-01-12 | 山西民兴实业有限公司 | Waste heat recovering and using system for annular brick kiln |
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Assignee: Chongqing ZhengChuan Glass Co., Ltd. Assignor: Wang Huaili|Haasbat Contract record no.: 2011500000007 Denomination of invention: Thermal cycling energy-saving glass kiln furnace Granted publication date: 20100512 License type: Exclusive License Open date: 20080206 Record date: 20110322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20160802 |