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Industrial welding and cutting gas with environmental-protective and energy-saving functions

An environment-friendly, energy-saving, industrial gas technology, applied in the petroleum industry, fuel, gas fuel, etc., can solve problems such as harsh working conditions, high energy consumption, flammable acetylene gas, etc., to expand the scope of use, significant economic benefits, and not easy to explode Effect

Active Publication Date: 2007-01-17
BENFANG SCI & TECH DEV BEIJING
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Problems solved by technology

[0002] At present, the oxy-acetylene flame cutting and welding used in my country's metal processing and machinery manufacturing industry is not only flammable, explosive, and pollutes the environment, but also the production cost of calcium carbide is high, the energy consumption is large, and the working conditions are harsh. An average of 950-1500 kg of calcium carbide is used to produce a ton of calcium carbide, 500-600 kg of coke or anthracite, power consumption of 2900-3400 kW / h, and a large number of electrode materials, while acetylene gas contains phosphine and arsine and other poisonous gases

Method used

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  • Industrial welding and cutting gas with environmental-protective and energy-saving functions

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Embodiment Construction

[0010] An environmentally friendly and energy-saving welding and cutting industrial gas, which contains liquefied petroleum gas and accelerators, is a hydrocarbon industrial gas that can be used for both cutting and welding. It is a mixed solution composed of 98.5-99.5wt% of liquefied petroleum gas and 0.5-1.5wt% of accelerator additive based on the total weight of industrial gas.

[0011] The liquefied petroleum gas is commercially available containing C 3 and C 4 , does not contain methylsulfuric acid and methylmercaptan; the accelerator includes 0.1-0.4wt% of 2-methoxypropane by industrial gas gross weight, 0.07-0.13wt% of methylcyclopentadiene, dipentamyl 0.1 to 0.3 wt% of alkene, 0.2 to 0.6 wt% of dicyclopentadiene, and 0.03 to 0.07 wt% of dicyclopentavinyl iron;

[0012] The preparation process of industrial fuel gas of the present invention is as shown in Figure 1, first 0.3wt% 2-methoxypropane, 0.08wt% methylcyclopentadiene, 0.04wt% dicyclopentaethenyl iron alloy of ...

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Abstract

An environmental-protective and energy-saving welding and cutting gas consist of liquefied petroleum gas containing C3 and C4 and improver, the improver comprises 2-methoxy-propane and diamylene and other organic compounds mixed. It is safe, convenient and cheap, has better combustion stability and no environmental pollution.

Description

technical field [0001] The invention belongs to the scope of hydrocarbon fuels, and in particular relates to an environment-friendly and energy-saving welding and cutting industrial gas used for metal cutting and welding and containing accelerator additives. Background technique [0002] At present, the oxy-acetylene flame cutting and welding used in my country's metal processing and machinery manufacturing industry is not only flammable, explosive, and pollutes the environment, but also the production cost of calcium carbide is high, energy consumption is large, and working conditions are harsh. An average of 950-1500 kg of calcium carbide is used to produce a ton of calcium carbide, 500-600 kg of coke or anthracite, power consumption is 2900-3400 kW / h, and a large number of electrode materials are used. At the same time, acetylene gas contains phosphine and arsine and other poisonous gases . In my country, liquefied petroleum gas (propane) is also used to cut metal, but it ...

Claims

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Application Information

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IPC IPC(8): C10L3/12C10L10/00
Inventor 王祥锡张继森
Owner BENFANG SCI & TECH DEV BEIJING
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