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Protective inert gas curtain generator

A gas curtain and protective technology, applied in the field of non-ferrous metal recycling and regeneration, can solve the problem of unable to prevent the oxidation of heavy metals, and achieve the effect of avoiding pollution

Inactive Publication Date: 2017-08-22
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is that the existing lead-acid battery recovery roasting furnace cannot prevent the oxidation of heavy metals, thereby providing a protective inert gas curtain generator, which can form an inert gas curtain in the roasting furnace to isolate heavy metals and air. Avoid heavy metals being oxidized and causing pollution

Method used

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  • Protective inert gas curtain generator

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] Such as figure 1 The illustrated embodiment is a protective inert gas curtain generator used in a roasting furnace of a lead-acid battery recycling workshop. The protective inert gas curtain generator includes a vent pipe 1 passing through the furnace wall and a gas curtain generating terminal 2 placed horizontally in the furnace. A gas flow meter 4 is installed in the ventilation pipe, and an air valve 5 is installed at the rear end, and is connected to a gas source, and the gas source selected in this example is carbon dioxide gas. The front end of the ventilation pipe communicates with the middle portion of the gas curtain generating terminal. The gas curtain generation terminal is a U-shaped tube with both ends closed, and a number of sidewall through holes 3 are arranged in the middle, all of which are oblong holes in this example...

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Abstract

The invention discloses a protective inert gas curtain generator, which is transversely arranged in the middle part of a roasting furnace. The protective inert gas curtain generator comprises a breather pipe and also comprises a gas curtain generation terminal. The gas curtain generation terminal is a U-shaped tube with two ends enclosed. Several sidewall through-holes are arranged at intervals inside the gas curtain generation terminal, and opening direction of the sidewall through-holes is downward. The front end of the breather pipe is communicated with the gas curtain generation terminal. The invention has the following beneficial effect: an inert gas curtain can be formed in the roasting furnace to isolate heavy metal from the air so as to avoid heavy metal from being oxidized and prevent pollution.

Description

technical field [0001] The invention belongs to the field of recovery and regeneration of nonferrous metals, in particular to a protective inert gas curtain generator used in the process of lead recovery. Background technique [0002] my country has a large number of electric bicycles, which are widely equipped with lead-acid batteries. Lead-acid batteries have the advantages of low cost and recyclability. Lead-acid batteries contain a large amount of lead and other heavy metals. When recycling, lead and other heavy metal materials are mainly recovered. The main method of use is to burn at high temperature, melt into liquid and separate from other substances, and then be recycled. Due to the huge base, a large number of lead-acid batteries are recycled every year and sent to the roasting road for roasting. Chinese patent document CN101197458A, on June 11, 2008, disclosed the "waste lead-acid battery recycling process", including battery dismantling, liquid wastewater treat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54
CPCY02W30/84H01M10/54
Inventor 吴鑫朱军平代少振王江林项晨
Owner CHAOWEI POWER CO LTD