CN102492503A - Novel industrial cutting gas with dimethyl ether as main component - Google Patents
Novel industrial cutting gas with dimethyl ether as main component Download PDFInfo
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Abstract
The invention discloses novel industrial cutting gas with dimethyl ether as a main component. The novel industrial cutting gas comprises (but not limited to) the following components in percentage by mass: 60-99.99% of the dimethyl ether, 0.01-40% of additives and the like, wherein the additive is prepared from tert-butylferrocene, diethyl ether, aromatic hydrocarbon, solvent oil No.6, tert-butyl alcohol and potassium permanganate according to a certain proportion. Auxiliary gas can also be added into the cutting gas and is one or some of acetylene, propane, propylene, butane and butylene. The novel industrial cutting gas disclosed by the invention presents strong advantages in the aspects of economy, safety, environment friendliness and cutting performance.
Description
Technical field
The present invention relates to a kind of ether hydrocarbon fuel gas, particularly a kind of is the infant industry Cutting Gas of staple with the dme.
Background technology
Employed industrial cutting gas mainly is an acetylene in the metal welding course of processing of China at present; Acetylene adds employed combustion gas in the process as a kind of traditional metal welding; Has the flame temperature height; Advantages such as the hot-work effect is remarkable, but also have significant disadvantages, acetylene be a kind of inflammable, explosive, be difficult to the gas that stores and transport.And in the preparation process, consume higher energy and can cause serious environmental to pollute.Actively advocate the energy-conservation angle of reduction of discharging at present from country, the acetylene industry is incompatible to be continued to develop.
The infant industry Cutting Gas that substitutes acetylene mainly is to be main ingredient with propane and LPG liquefied petroleum gas etc.; It wherein is the Cutting Gas of main ingredient with propane; Have clear improvement than acetylene at aspects such as safety and environmental protection, but propane flame temperature and cutting speed in feet per minute are superior not as acetylene, and the propane gas source is single; In use oxygen-consumption is high, is unfavorable for safety operation.
Along with the rise of dimethylether industrial, dme demonstrates stronger advantage as Cutting Gas: dme is toxic substance such as phosphine containing and hydrogen sulfide not, and self contains oxygen, and sufficient combustion is the ideal clean energy; Dme is difficult for blasting, storing and safe in utilization; Dme is cheap, compares with other industrial cutting gas, and is very competitive.
Because the dme calorific value is lower, uses dme to have the slow-footed problem of punch-cuts as Cutting Gas merely, therefore must add best additive, improve dme temperature of combustion and combustionvelocity.
Summary of the invention
The objective of the invention is to improve above-mentioned deficiency, is that staple is done combustion gas with the dme, and the adding additive is mixed with safe in utilization, energy-conserving and environment-protective, cheap infant industry Cutting Gas.
Technical scheme of the present invention is: a kind of is the infant industry Cutting Gas of staple with the dme, comprises but is not limited to dme and additive etc., and each constituent mass per-cent is:
Dme: 60～99.99%,
Additive: 0.01%～40%.
Each constituent mass per-cent of Cutting Gas is preferably:
Dme: 80～99.99%,
Additive: 0.01%～20%.
Each constituent mass per-cent of Cutting Gas is more preferably:
Dme: 90～99.99%,
Additive: 0.01%～10%.
Described additive is made by tertiary butyl ferrocene, ether, aromatic hydrocarbon oil, 6# solvent oil, the trimethyl carbinol, potassium permanganate by a certain percentage, and additive is formed (wt%) as follows:
Tertiary butyl ferrocene: 1%～30%, ether: 10%～80%, aromatic hydrocarbon oil: 1%～20%, the 6# solvent oil: 5%～60%, the trimethyl carbinol: 1%～40%, potassium permanganate: 0%～20%.
Preferred additives is formed as follows: tertiary butyl ferrocene: 1%～20%, and ether: 40%～80%, aromatic hydrocarbon oil: 1%～10%, the 6# solvent oil: 5%～30%, the trimethyl carbinol: 1%～20%, potassium permanganate: 0%～10%.
Additive is formed more preferably: tertiary butyl ferrocene: 1%～10%, and ether: 60%～80%, aromatic hydrocarbon oil: 1%～5%, the 6# solvent oil: 10%～30%, the trimethyl carbinol: 5%～10%, potassium permanganate: 0%～5%.
More preferably technical scheme of the present invention is: a kind of is the infant industry Cutting Gas of staple with the dme, comprises but is not limited to dme and additive etc., can also add assist gas.
Usually each constituent mass per-cent is:
Dme: 60～99%,
Additive: 0.01%～39%,
Assist gas: 0.01～39%.
Preferred each constituent mass per-cent of Cutting Gas is:
Dme: 80～99%,
Additive: 0.01%～19%,
Assist gas: 0.01～19%.
Described assist gas is one or more of acetylene, propane, propylene, butane, pentane, forms (wt%) as follows: acetylene: 20%～100%; Propane: 0%～60%; Propylene: 0%～60%; Butane: 0%～40%; Pentane: 0%～40%.
Wherein preferred assist gas is formed as follows: acetylene: 50%～100%; Propane: 0%～50%; Propylene: 0%～50%; Butane: 0%～20%; Pentane: 0%～20%.
Additive is made by tertiary butyl ferrocene, ether, aromatic hydrocarbon oil, 6# solvent oil, the trimethyl carbinol, potassium permanganate by a certain percentage in the infant industry Cutting Gas of described adding assist gas, and additive is formed (wt%) as follows:
Tertiary butyl ferrocene: 1%～30%, ether: 10%～80%, aromatic hydrocarbon oil: 1%～20%, the 6# solvent oil: 5%～60%, the trimethyl carbinol: 1%～40%, potassium permanganate: 0%～20%.
Preferred additives is formed as follows: tertiary butyl ferrocene: 1%～20%, and ether: 40%～80%, aromatic hydrocarbon oil: 1%～10%, the 6# solvent oil: 5%～30%, the trimethyl carbinol: 1%～20%, potassium permanganate: 0%～10%.
Additive is formed more preferably: tertiary butyl ferrocene: 1%～10%, and ether: 60%～80%, aromatic hydrocarbon oil: 1%～5%, the 6# solvent oil: 10%～30%, the trimethyl carbinol: 5%～10%, potassium permanganate: 0%～5%.
The compound method of said infant industry Cutting Gas and additive is:
The preparation of A, additive: under the normal temperature and pressure, each raw material is according to dosage added modulation kettle, continuously stirring 2 hours promptly gets additive.
The preparation of B, industrial cutting gas: according to dosage get earlier additive and inject the LPG liquefied petroleum gas empty bottle; Through the gas filling station assist gas is injected the LPG liquefied petroleum gas empty bottle (if preparation does not contain the Cutting Gas of auxiliary gas more selectively; Then do not need this step); Through the gas filling station dme is injected the LPG liquefied petroleum gas empty bottle at last, valve-off, thorough mixing are evenly promptly accomplished the preparation of infant industry Cutting Gas.
The present invention has the following advantages:
1, the energy structure of China is " rich coal, few oil, gas is arranged ", and the development dme can be brought into play the advantage of China, reduces the demand to crude oil.Therefore the dme wide material sources are cheap.
2, compare the limits of explosion of acetylene: 2.5%～80.0%, the limits of explosion of dme is 3.4%～17%: XPL range is little, storing and safe in utilization;
3, dme is a kind of ultra clean energy, and toxic substance such as phosphine containing and hydrogen sulfide can not cause disadvantageous effect to environment, user and the metal welding seam that is cut.
4, the present invention furthers investigate the flame mechanism of dme; And the synergistic effect between the various compositions of additive; Through utilizing the good activity of additive molecule; Reduce the activation energy of Cutting Gas molecule, thereby make the flame release of heat more concentrated, reach the combustionvelocity of raising Cutting Gas and the purpose of flame temperature.When industrial cutting gas of the present invention was used to cut, preheating and cutting speed in feet per minute were fast, and the facet face is smooth, nothing is hung slag, oxygen consumption is few, and each item index all is superior to traditional dissolved acetylene gas.
In sum, of the present invention is that the infant industry Cutting Gas of staple demonstrates powerful advantage at aspects such as economy, security, the feature of environmental protection and cutting propertys with the dme.
Embodiment
Do further description in the face of the present invention down, below be merely preferred embodiment of the present invention, can not limit scope of the present invention with this.Be every variation and modification of doing according to claim of the present invention, all should still belong in the scope that patent of the present invention contains.
Embodiment one:
The additive configuration proportion measures by following: tertiary butyl ferrocene 10g, ether 800g, aromatic hydrocarbon oil (source: 20g Beijing sky Cole chemical industry ltd); 6# solvent oil 50g (source: Beijing sky Cole chemical industry ltd); Trimethyl carbinol 70g, potassium permanganate 50g adds modulation kettle; Continuously stirring 2 hours, for use.This additive samples called after a.
20kg additive a is pressed into 50kg dress steel cylinder, is pressed into dme 30kg to steel cylinder again, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 60%, additive 40%.This Cutting Gas sample called after A.
Embodiment two:
The additive configuration proportion measures by following: tertiary butyl ferrocene 300g, and ether 100g, aromatic hydrocarbon oil 50g, 6# solvent oil 150g, trimethyl carbinol 400g adds modulation kettle, and continuously stirring 2 hours is for use.This additive samples called after b.
5g additive b is pressed into 50kg dress steel cylinder, is pressed into dme 49.995kg to steel cylinder again, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 99.99%, additive 0.01%.This Cutting Gas sample called after B.
Embodiment three:
The additive configuration proportion measures by following: tertiary butyl ferrocene 30g, and ether 730g, aromatic hydrocarbon oil 10g, 6# solvent oil 220g, trimethyl carbinol 10g adds modulation kettle, and continuously stirring 2 hours is for use.This additive samples called after c.
0.5kg additive c is pressed into 50kg dress steel cylinder, is pressed into dme 49.5kg to steel cylinder again, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 99%, additive 1%.This Cutting Gas sample called after C.
Embodiment four:
The additive configuration proportion measures by following: tertiary butyl ferrocene 50g, and ether 200g, aromatic hydrocarbon oil 30g, 6# solvent oil 600g, trimethyl carbinol 100g, potassium permanganate 20g adds modulation kettle, and continuously stirring 2 hours is for use.This additive samples called after d.
5kg additive d is pressed into 50kg dress steel cylinder, is pressed into dme 45kg to steel cylinder again, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 90%, additive 10%.This Cutting Gas sample called after D.
Embodiment five:
The additive configuration proportion measures by following: tertiary butyl ferrocene 200g, and ether 500g, aromatic hydrocarbon oil 200g, 6# solvent oil 80g, trimethyl carbinol 10g, potassium permanganate 10g adds modulation kettle, and continuously stirring 2 hours is for use.This additive samples called after e.
10kg additive e is pressed into 50kg dress steel cylinder, is pressed into dme 40kg to steel cylinder again, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 80%, additive 20%.This Cutting Gas sample called after E.
Embodiment six:
The additive configuration proportion measures by following: tertiary butyl ferrocene 100g, and ether 400g, aromatic hydrocarbon oil 10g, 6# solvent oil 270g, trimethyl carbinol 20g, potassium permanganate 200g adds modulation kettle, and continuously stirring 2 hours is for use.This additive samples called after f.
2.5kg additive f is pressed into 50kg dress steel cylinder, is pressed into dme 47.5kg to steel cylinder again, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 95%, additive 5%.This Cutting Gas sample called after F.
Embodiment seven:
5g additive a is pressed into 50kg dress steel cylinder; Be pressed into assist gas 495g altogether to steel cylinder again, wherein: acetylene 99g, propane 297g, butane 49.5g, pentane 49.5g; Be pressed into dme 49.5kg to steel cylinder at last, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 99%, assist gas 0.99%, additive 0.01%.This Cutting Gas sample called after G.
Embodiment eight:
0.5kg additive b is pressed into 50kg dress steel cylinder; Be pressed into acetylene 19.5kg to steel cylinder again, be pressed into dme 30kg to steel cylinder at last, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 60%, assist gas 39%, additive 1%.This Cutting Gas sample called after H.
Embodiment nine:
9.5kg additive c is pressed into 50kg dress steel cylinder; Be pressed into assist gas 5g altogether to steel cylinder again, wherein: acetylene 2.5g, propane 2.5g; Be pressed into dme 40.495kg to steel cylinder at last, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 80.99%, assist gas 0.01%, additive 19%.This Cutting Gas sample called after I.
Embodiment ten:
0.5kg additive d is pressed into 50kg dress steel cylinder; Be pressed into assist gas 9.5kg altogether to steel cylinder again, wherein: acetylene 7.125kg, propane 2.375kg; Be pressed into dme 40kg to steel cylinder at last, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 80%, assist gas 19%, additive 1%.This Cutting Gas sample called after J.
Embodiment 11:
19.5kg additive e is pressed into 50kg dress steel cylinder; Be pressed into assist gas 0.5kg altogether to steel cylinder again, wherein: acetylene 150g, propane 25g, propylene 125g, butane 100g, pentane 100g; Be pressed into dme 30kg to steel cylinder at last, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 60%, assist gas 1%, additive 39%.This Cutting Gas sample called after K.
Embodiment 12:
4.5kg additive f is pressed into 50kg dress steel cylinder; Be pressed into assist gas 0.5kg altogether to steel cylinder again, wherein: acetylene 300g, propane 50g, propylene 100g, butane 25g, pentane 25g; Be pressed into dme 45kg to steel cylinder at last, valve-off, thorough mixing promptly get Cutting Gas.The quality percentage composition of this each component of Cutting Gas is: dme 90%, assist gas 1%, additive 9%.This Cutting Gas sample called after L.
Comparative Examples one
Adopt acetylene as Cutting Gas, cutting effect is listed in the table below.
Comparative Examples two
Adopt propane as Cutting Gas, cutting effect is listed in the table below.
Comparative Examples three
Adopt pure Dimethyl ether as Cutting Gas, cutting effect is listed in the table below.
The carbon steel sheet cutting experiment is carried out in above-mentioned each sample unification, and the cutting experiment result contrasts like following table:
Claims (10)
1. one kind is the infant industry Cutting Gas of staple with the dme, comprises but is not limited to dme and additive, and each constituent mass per-cent is:
Dme: 60～99.99%;
Additive: 0.01%～40%;
Said additive is made by tertiary butyl ferrocene, ether, aromatic hydrocarbon oil, 6# solvent oil, the trimethyl carbinol, potassium permanganate.
2. according to the said Cutting Gas of claim 1, it is characterized in that each constituent mass per-cent of Cutting Gas is: dme 80～99.99%, additive 0.01%～20%; More preferably: dme 90～99.99%, additive 0.01%～10%.
3. according to claim 1 or 2 said Cutting Gas, it is characterized in that each constituent mass per-cent of additive is formed as follows: tertiary butyl ferrocene 1%～30%; Ether 10%～80%, aromatic hydrocarbon oil 1%～20%, 6# solvent oil 5%～60%; The trimethyl carbinol 1%～40%, potassium permanganate 0%～20%.
4. according to the said Cutting Gas of claim 3, it is characterized in that additive is preferably formed as follows: tertiary butyl ferrocene 1%～20%; Ether 40%～80%, aromatic hydrocarbon oil 1%～10%, 6# solvent oil 5%～30%; The trimethyl carbinol 1%～20%, potassium permanganate 0%～10%; Additive is formed more preferably: tertiary butyl ferrocene 1%～10%, ether 60%～80%, aromatic hydrocarbon oil 1%～5%, 6# solvent oil 10%～30%, the trimethyl carbinol 5%～10%, potassium permanganate 0%～5%.
5. according to said any one Cutting Gas of claim 1～4, it is characterized in that, also add assist gas in the Cutting Gas.
6. according to the said Cutting Gas of claim 5, it is characterized in that each constituent mass per-cent of Cutting Gas is: dme 60～99%, additive 0.01%～39%, assist gas 0.01～39%; Preferred each constituent mass per-cent of Cutting Gas is: dme 80～99%, additive 0.01%～19%, assist gas 0.01～19%.
7. according to claim 5 or 6 said Cutting Gas, it is characterized in that assist gas is one or more of acetylene, propane, propylene, butane, butylene.
8. according to the said Cutting Gas of claim 7, it is characterized in that each constituent mass per-cent of assist gas is: acetylene 20%～100%; Propane 0%～60%; Propylene 0%～60%; Butane 0%～40%; Pentane 0%～40%; Preferred assist gas is formed as follows: acetylene 50%～100%; Propane 0%～50%; Propylene 0%～50%; Butane 0%～20%; Pentane 0%～20%.
9. according to said any one Cutting Gas of claim 5～8; It is characterized in that the additive mass percent is formed as follows: tertiary butyl ferrocene 1%～30%, ether 10%～80%; Aromatic hydrocarbon oil 1%～20%; 6# solvent oil 5%～60%, the trimethyl carbinol 1%～40%, potassium permanganate 0%～20%; Additive is formed preferred: tertiary butyl ferrocene 1%～20%, ether 40%～80%, aromatic hydrocarbon oil 1%～10%, 6# solvent oil 5%～30%, the trimethyl carbinol 1%～20%, potassium permanganate 0%～10%; Additive is formed more preferably: tertiary butyl ferrocene 1%～10%, ether 60%～80%, aromatic hydrocarbon oil 1%～5%, 6# solvent oil 10%～30%, the trimethyl carbinol 5%～10%, potassium permanganate 0%～5%.
10. the compound method of the said any Cutting Gas of claim 1～9 comprises:
The preparation of A, additive: under the normal temperature and pressure, each raw material is according to dosage added modulation kettle, continuously stirring promptly gets additive.
The preparation of B, industrial cutting gas: according to dosage get earlier additive and inject the LPG liquefied petroleum gas empty bottle; Through the gas filling station assist gas is injected the LPG liquefied petroleum gas empty bottle more selectively; Through the gas filling station dme is injected the LPG liquefied petroleum gas empty bottle at last; Valve-off, thorough mixing are evenly promptly accomplished the preparation of infant industry Cutting Gas.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013597A (en) * | 2012-12-14 | 2013-04-03 | 四川帝尔新能源科技有限公司 | Dimethyl ether mixed fuel composition and preparation method thereof |
| CN103242919A (en) * | 2013-05-16 | 2013-08-14 | 秦如新 | Nanometer additive composition and preparation method thereof and dimethyl ether fuel |
| CN103614176A (en) * | 2013-12-16 | 2014-03-05 | 德阳恒博秸油科技有限公司 | Synergist of light alkane and preparation method thereof |
| CN103820180A (en) * | 2014-03-21 | 2014-05-28 | 王海涛 | Mixed dimethyl ether gas |
| CN109410738A (en) * | 2017-08-16 | 2019-03-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | A kind of thermo-responsive label, preparation method and application method |
| CN109694762A (en) * | 2019-01-11 | 2019-04-30 | 浙江纺织服装职业技术学院 | A kind of ether hydro carbons welding gas |
| CN112195048A (en) * | 2020-09-01 | 2021-01-08 | 宁波盾科新材料有限公司 | Welding gas mixture without oxygen combustion supporting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206039A (en) * | 1997-07-18 | 1999-01-27 | 曾兆祥 | Acetylene substituting high-energy fuel gas and its additive |
| CN1667096A (en) * | 2005-03-03 | 2005-09-14 | 郑长同 | Industrial fuel gas for metal cutting and welding |
| CN1775923A (en) * | 2005-11-18 | 2006-05-24 | 张勇 | LD-nano metal welding-cutting gas raw material composition and its preparing method |
| CN101033429A (en) * | 2006-03-06 | 2007-09-12 | 杨向东 | Active ion welding gas |
| CN101089152A (en) * | 2007-07-10 | 2007-12-19 | 熊世平 | Industrial fuel gas for metal welding and cutting in high efficiency and low consumption |
-
2011
- 2011-11-25 CN CN201110381821.0A patent/CN102492503B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1206039A (en) * | 1997-07-18 | 1999-01-27 | 曾兆祥 | Acetylene substituting high-energy fuel gas and its additive |
| CN1667096A (en) * | 2005-03-03 | 2005-09-14 | 郑长同 | Industrial fuel gas for metal cutting and welding |
| CN1775923A (en) * | 2005-11-18 | 2006-05-24 | 张勇 | LD-nano metal welding-cutting gas raw material composition and its preparing method |
| CN101033429A (en) * | 2006-03-06 | 2007-09-12 | 杨向东 | Active ion welding gas |
| CN101089152A (en) * | 2007-07-10 | 2007-12-19 | 熊世平 | Industrial fuel gas for metal welding and cutting in high efficiency and low consumption |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013597A (en) * | 2012-12-14 | 2013-04-03 | 四川帝尔新能源科技有限公司 | Dimethyl ether mixed fuel composition and preparation method thereof |
| CN103242919A (en) * | 2013-05-16 | 2013-08-14 | 秦如新 | Nanometer additive composition and preparation method thereof and dimethyl ether fuel |
| CN103614176A (en) * | 2013-12-16 | 2014-03-05 | 德阳恒博秸油科技有限公司 | Synergist of light alkane and preparation method thereof |
| CN103820180A (en) * | 2014-03-21 | 2014-05-28 | 王海涛 | Mixed dimethyl ether gas |
| CN109410738A (en) * | 2017-08-16 | 2019-03-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | A kind of thermo-responsive label, preparation method and application method |
| CN109694762A (en) * | 2019-01-11 | 2019-04-30 | 浙江纺织服装职业技术学院 | A kind of ether hydro carbons welding gas |
| CN112195048A (en) * | 2020-09-01 | 2021-01-08 | 宁波盾科新材料有限公司 | Welding gas mixture without oxygen combustion supporting |
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