CN1508503A - Continuous mesh-belt furnance tail gas and waste gas utilising method and special apparatus - Google Patents
Continuous mesh-belt furnance tail gas and waste gas utilising method and special apparatus Download PDFInfo
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- CN1508503A CN1508503A CNA021496730A CN02149673A CN1508503A CN 1508503 A CN1508503 A CN 1508503A CN A021496730 A CNA021496730 A CN A021496730A CN 02149673 A CN02149673 A CN 02149673A CN 1508503 A CN1508503 A CN 1508503A
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- gas
- quenching
- combustion chamber
- air valve
- waste gas
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- Combustion Of Fluid Fuel (AREA)
Abstract
The invention refers to a kind of quenching waste gas utilizing method and the special appliance for continuous mesh belt stove, the character lies in: 1) adds a combustion room connecting to the stove mouth out of the mouth of mesh belt stove tail, the gas in the stove is transmitted to the room to be burned; 2) extracts out the waste gas form the declining channel to the combustion room and burns it fully; 3) the flow of quenching waste gas and the absorbed air can be regulated, in order to regulate the combustion effect.
Description
Affiliated technical field
The present invention relates to a kind of continuous mesh belt type furnace exhaust gas and quenching exhaust gas utilization method and isolated plant, belong to the metal heat treatmet equipment technical field.
Background technology
Grill-hearth travelling oven has two kinds on Muffle pot structure and no Muffle pot structure.During grill-hearth travelling oven work; be full of protective atmosphere or carburizing atmosphere in the burner hearth; the tail gas of furnace gas overflows from the fire door of meshbeltfurnace afterbody; in tail gas, contain fuel gas such as a large amount of CO, CO2, H2, CH4; in fire door place and air mixed combustion; its calorific value can't utilize, and because burning is insufficient, the flame tail can emit white cigarette or black smoke to cause environmental pollution.In addition, in the grill-hearth travelling oven quenching process, because the evaporation of quenching medium can produce a large amount of waste gas.If the waste gas that produces from quenching tank enters in the stove by the whereabouts passage, will make the furnace atmosphere instability, thereby make the operation control difficulty of whole heat treatment process, cause heat treated article quality instability.Therefore, must prevent that in the grill-hearth travelling oven quenching process exhaust gas recirculation is in stove.In the prior art, generally adopt the exhausting formula that the waste gas that produces in the quenching process is extracted out the outer burning of stove or directly is thrown into the space, not only caused environmental pollution, but also wasted the energy.
Technology contents
The technical issues that need to address of the present invention provide a kind of continuous mesh belt type furnace exhaust gas and quenching exhaust gas utilization method and isolated plant, utilize continuous mesh belt type furnace exhaust gas and quenching waste gas fully again.
Technical problem of the present invention can solve by taking following measure: continuous mesh belt type furnace exhaust gas and quenching exhaust gas utilization method are characterized in:
1) outside the fire door of meshbeltfurnace afterbody, add a combustion chamber that is communicated with fire door, the interior tail gas of stove is entered in this combustion chamber by fire door burn, and then outwards discharging;
2) extract quenching waste gas out and be transported to the combustion chamber of afterbody from quenching part whereabouts passage, and in carrying the way, absorb air, light the quenching waste gas that is transported to the combustion chamber and be spilled over to the waste gas the combustion chamber and it is fully burnt from fire door;
3) pump to the air capacity of the quenching exhaust gas flow of combustion chamber and absorption adjustablely from the place ahead quenching passage, the ratio of regulating quenching waste gas in the combustion chamber, air, tail gas is to regulate the combustion efficiency of mist in the combustion chamber.
The isolated plant of foregoing continuous mesh belt type furnace exhaust gas and quenching exhaust gas utilization method, its design feature is: comprise gas-liquid separator, two gas flowmeters, three air valves, gas mixer, the input port of gas-liquid separator connects the Waste gas outlet of quenching passage by pipeline, gas output end connects the input port of air mixer by one of one of gas flowmeter and air valve, the liquid output connects the quenching liquid bath by hydraulic valve, another input port of gas mixer is by two connection air of two and gas flowmeter of air valve, and the output of gas mixer is by the combustion chamber of the tee joint meshbeltfurnace of air valve.
Technical problem of the present invention also can solve by taking following measure:
Three and junction, previous combustion chamber at air valve are provided with automatic ignitor.
Between three and previous combustion chamber of air valve, be provided with suction pump.
Between gas-liquid separator and the quenching passage Waste gas outlet, between the combustion chamber of air valve and meshbeltfurnace, and the connection between each element all connects by pipeline.
The present invention has following outstanding effect:
Characteristics of the present invention are provided with waste gas and recycle passage below grill-hearth travelling oven quenching passage, make the waste gas that produces in the quenching process successively by gas-liquid separator, flowmeter, gas mixer, gas pumping pump, get back to the afterbody combustion chamber of grill-hearth travelling oven at last, and fully burning in this combustion chamber, produce following technique effect: fully burn in the afterbody combustion chamber by tail gas and quenching waste gas and realize utilization again to the energy, the workpiece of stove is advanced in the possibility preheating on the one hand, increase furnace pressure, reduce the consumption of the energy and solvent, reach purpose of energy saving.With the tail gas that produces in the quenching process and quenching waste gas, waste liquid, Waste Heat Recovery utilization, reduce pollution on the other hand, reach the purpose of protection environment environment.
The drawing explanation
Fig. 1 is a kind of structural representation of isolated plant wherein.
Preferred embodiment
As can be seen from Figure 1, purpose for tail gas and the quenching waste gas of realizing making full use of grill-hearth travelling oven, the method that adopts is: a combustion chamber 11 is set outside the afterbody doorway of former glowing furnace 12, the guipure burner hearth is communicated with combustion chamber 11 by former fire door, between the waste gas outlet 13 of afterbody combustion chamber and quenching passage isolated plant is set, described isolated plant is formed by connecting by gas-liquid separator 2, hydraulic valve 3, gas flowmeter 4, air valve 5, gas flowmeter 7, air valve 5, gas mixer 8 and air valve 10, automatic ignitor 12 and suction pump 9.
The input port of gas-liquid separator 2 connects the Waste gas outlet 13 of quench 12 (quenching passages), gas output end connects gas mixer 8 by gas flowmeter 4 and air valve 5 input port by pipeline 1, be used for gas and fluid separation applications with waste gas, with pure gas be transported to gas mixer 8, liquid is transported to the quenching liquid bath by hydraulic valve 3.
Gas mixer 3 is provided with air intake, the air intake place is provided with air valve 6 and gas flowmeter 7, air valve 6 is regulated the air capacity that enters gas mixer 8, air valve 5 is regulated the exhausted air quantity that enters gas mixer, therefore by regulating air valve 5, air valve 6, can the adjustments of gas blender air content of gas of 8 outputs, use mist sufficient combustion in afterbody combustion chamber 11.
The suction pump 9 main flow velocitys that extract the waste gas of quenching passage 12, the flow velocity of accelerating waste gas and control mist.
Air valve 10 is mainly used in the flow of mist that control enters cup 11, and the furnace gas that makes mist and spill into cup in the body of heater 13 is fully burned.
Automatic ignitor 12 is mainly used in the usefulness extraction is used for injecting flames into cup by gas nozzle, and furnace gas and the waste gas lighted in the cup fully burn it.
Operation principle of the present invention is as follows:
The waste gas of discharging from quenching passage 12 is through being separated into waste gas and useless the taste behind the gas-liquid separator 2, waste gas is by gas flowmeter 4, air valve 5 enters in the gas mixer 8, waste liquid regularly is back in the quenching tank by hydraulic valve 3, air is by gas flowmeter 7, air valve 6 enters in the gas mixer 9, air and waste gas form mist in gas mixer 8, described mist enters the combustion chamber 11 of meshbeltfurnace by automatic ignitor 12 ignition by air valve 10, the flow of air valve 5 control waste gas, the flow of air valve 6 control air, flowmeter body 4, gas flowmeter 7 measures the flow of waste gas and the flow of air respectively.
Claims (5)
1, continuous mesh belt type furnace exhaust gas and quenching exhaust gas utilization method is characterized in that:
1) outside the fire door of meshbeltfurnace afterbody, add a combustion chamber that is communicated with fire door, the interior tail gas of stove is entered in this combustion chamber by fire door burn, and then outwards discharging;
2) extract quenching waste gas out and be transported to the combustion chamber of afterbody from quenching part whereabouts passage, and in carrying the way, absorb air, light the quenching waste gas that is transported to the combustion chamber and be spilled over to the waste gas the combustion chamber and it is fully burnt from fire door;
3) pump to the air capacity of the quenching exhaust gas flow of combustion chamber and absorption adjustablely from the place ahead quenching passage, the ratio of regulating quenching waste gas in the combustion chamber, air, tail gas is to regulate the combustion efficiency of mist in the combustion chamber.
2, the isolated plant of continuous mesh belt type furnace exhaust gas as claimed in claim 1 and quenching exhaust gas utilization method, it is characterized in that: comprise gas-liquid separator (2), gas flowmeter (4), air valve (5), gas flowmeter (7), air valve (6), gas mixer (8) and air valve (10), the input port of gas-liquid separator (2) connects the Waste gas outlet of quenching passage by pipeline (1), gas output end connects the input port of air mixer (8) by gas flowmeter (4) and air valve (5), the liquid output connects the quenching liquid bath by hydraulic valve (3), another input port of gas mixer (8) is by air valve (6), gas flowmeter (7) is communicated with atmosphere, and the output of gas mixer (8) is communicated with the combustion chamber (11) of meshbeltfurnace by air valve (10).
3, isolated plant as claimed in claim 2 is characterized in that: the junction in air valve (10) and combustion chamber (11) is provided with automatic ignitor (12).
4, isolated plant as claimed in claim 2 is characterized in that: be provided with suction pump (9) between air valve (10) and gas mixer (8).
5, isolated plant as claimed in claim 2 is characterized in that: between gas-liquid separator (2) and the quenching passage Waste gas outlet, between air valve (10) and combustion chamber (11), and the connection between each element all connects by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149673 CN1508503B (en) | 2002-12-19 | 2002-12-19 | Continuous mesh-belt furnace tail gas and waste gas utilizing method and special apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02149673 CN1508503B (en) | 2002-12-19 | 2002-12-19 | Continuous mesh-belt furnace tail gas and waste gas utilizing method and special apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508503A true CN1508503A (en) | 2004-06-30 |
| CN1508503B CN1508503B (en) | 2012-06-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02149673 Expired - Lifetime CN1508503B (en) | 2002-12-19 | 2002-12-19 | Continuous mesh-belt furnace tail gas and waste gas utilizing method and special apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1508503B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419096C (en) * | 2006-05-08 | 2008-09-17 | 杭州金舟电炉有限公司 | Netted belt furnace for heating roller with both oil and electricity |
| CN101881561A (en) * | 2010-07-12 | 2010-11-10 | 宏茂五金(昆山)有限公司 | Combustion heat energy recycling system of quenching furnace tail gas |
| CN102636037A (en) * | 2011-02-09 | 2012-08-15 | 中外炉工业株式会社 | Energy recovery device |
| CN107326165A (en) * | 2017-08-15 | 2017-11-07 | 中山市智辉科技服务有限公司 | A kind of gear quenching device with water injector |
-
2002
- 2002-12-19 CN CN 02149673 patent/CN1508503B/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419096C (en) * | 2006-05-08 | 2008-09-17 | 杭州金舟电炉有限公司 | Netted belt furnace for heating roller with both oil and electricity |
| CN101881561A (en) * | 2010-07-12 | 2010-11-10 | 宏茂五金(昆山)有限公司 | Combustion heat energy recycling system of quenching furnace tail gas |
| CN101881561B (en) * | 2010-07-12 | 2012-07-04 | 宏茂五金(昆山)有限公司 | Combustion heat energy recycling system of quenching furnace tail gas |
| CN102636037A (en) * | 2011-02-09 | 2012-08-15 | 中外炉工业株式会社 | Energy recovery device |
| CN102636037B (en) * | 2011-02-09 | 2015-06-17 | 中外炉工业株式会社 | Energy recovery device |
| CN107326165A (en) * | 2017-08-15 | 2017-11-07 | 中山市智辉科技服务有限公司 | A kind of gear quenching device with water injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1508503B (en) | 2012-06-06 |
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Granted publication date: 20120606 |
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