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Novel industrial cutting gas with dimethyl ether as main component

A dimethyl ether and industrial technology, applied in the field of new industrial cutting gas, can solve the problems of low calorific value of dimethyl ether, slow drilling and cutting speed, etc., and achieve the effect of increasing flame temperature, strong cutting performance and concentrated heat

Active Publication Date: 2012-06-13
ENN XINNENG BEIJING TECH
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the low calorific value of dimethyl ether, there is a problem of slow cutting speed when only using dimethyl ether as cutting gas, so the best additives must be added to increase the burning temperature and burning speed of dimethyl ether

Method used

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  • Novel industrial cutting gas with dimethyl ether as main component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The ratio of additive preparation is measured as follows: 10g of tert-butyl ferrocene, 800g of diethyl ether, 20g of aromatic oil (source: Beijing Haoker Chemical Co., Ltd.), 50g of 6# solvent oil (source: Beijing Haoker Chemical Co., Ltd.), 70g of tert-butanol and 50g of potassium permanganate were added to the preparation kettle, stirred continuously for 2 hours, and set aside. The additive sample is named a.

[0047] Press 20kg of additive a into a 50kg steel cylinder, then press 30kg of dimethyl ether into the cylinder, close the valve, and fully mix to obtain the cutting gas. The mass percent content of each component of the cutting gas is: dimethyl ether 60%, additive 40%. The cutting gas sample is named A.

Embodiment 2

[0049] The ratio of additive preparation is measured as follows: 300g of tert-butyl ferrocene, 100g of diethyl ether, 50g of aromatic oil, 150g of 6# solvent oil, 400g of tert-butanol, add to the preparation kettle, stir continuously for 2 hours, and set aside. The additive sample is named b.

[0050] Press 5g of additive b into a 50kg steel cylinder, then press 49.995kg of dimethyl ether into the cylinder, close the valve, and mix thoroughly to obtain the cutting gas. The mass percent content of each component of the cutting gas is: 99.99% of dimethyl ether and 0.01% of additives. The cutting gas sample is named B.

Embodiment 3

[0052] The ratio of additive preparation is measured as follows: 30g of tert-butyl ferrocene, 730g of diethyl ether, 10g of aromatic oil, 220g of 6# solvent oil, 10g of tert-butanol, add to the preparation kettle, stir continuously for 2 hours, and set aside. The additive sample is named c.

[0053] Press 0.5kg of additive c into a 50kg steel cylinder, then press 49.5kg of dimethyl ether into the cylinder, close the valve, and mix thoroughly to obtain cutting gas. The mass percent content of each component of the cutting gas is: 99% of dimethyl ether and 1% of additive. The cutting gas sample is named C.

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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 [0001] The invention relates to an ether hydrocarbon gas, in particular to a new type of industrial cutting gas with dimethyl ether as the main component. Background technique [0002] At present, the industrial cutting gas used in the metal welding and cutting process in my country is mainly acetylene. As a traditional gas used in the metal welding and cutting process, acetylene has the advantages of high flame temperature and remarkable thermal processing effect, but it is also With obvious disadvantages, acetylene is a flammable, explosive gas that is difficult to store and transport. Moreover, the preparation process consumes relatively high energy and causes serious environmental pollution. From the point of view that the country actively advocates emission reduction and energy conservation, the acetylene industry is no longer suitable for continued development. [0003] The new industrial cutting gas that replaces acetylene is mainly composed of propan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/00
Inventor 宋欢芳雷志祥刘鹏翔张建祥常俊石
Owner ENN XINNENG BEIJING TECH
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