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U-shaped high-temperature waste recycling furnace

A waste and recycling technology, applied in the field of waste treatment, can solve the problems of excessive emission of toxic and harmful gases in exhaust gas, insufficient oxidation of exhaust gas, poor stability of working conditions, etc., to avoid local high temperature phenomenon, inhibit dioxin generation, Effects of high intensity treatment

Inactive Publication Date: 2014-01-29
ZHEJIANG HUANYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a U-shaped waste high-temperature resource disposal furnace with large disposal capacity, environmental protection and economy, high metal recovery rate and strong waste adaptability, which solves the problem of stable working conditions caused by the fuzzy division of combustion and smelting functions in traditional converters Poor performance and insufficient tail gas oxidation lead to excessive discharge of toxic and harmful gases

Method used

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  • U-shaped high-temperature waste recycling furnace
  • U-shaped high-temperature waste recycling furnace

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment one, see figure 1 , a U-shaped waste high-temperature recycling furnace, comprising a vertically arranged hollow combustion tower 1, a horizontally arranged hollow smelting pool 2 and a vertically arranged hollow disinfection tower 3.

[0034] A first smelting pool inlet 21 is provided on the top wall at the left end of the smelting pool 2 . A second smelting pool inlet 22 is provided on the left end wall of the smelting pool 2 . The right end of the rear side wall of the smelting pool 2 is provided with a copper discharge hole 23, and the left end is provided with an emergency copper discharge hole 29. The beneficial effect of designing the emergency copper discharge hole 29 is: when an abnormality occurs and the temperature drops, the molten copper can be discharged quickly to prevent the molten copper from solidifying in the smelting pool. A first observation hole 24 is provided on the right end wall of the smelting pool 2 . The beneficial effect of des...

Embodiment 2

[0052] Embodiment two, see Figure 5 , The difference from Embodiment 1 is that the cross section of the inner cavity 28 of the smelting pool is circular.

[0053] In the above two embodiments, the combustion tower 1 and the disinfection tower 3 are all single-section structures. If the combustion tower 1 height is higher, the combustion tower 1 can be designed as multi-sections connected in series, and the weight of each section is directly borne by the combustion tower support frame 7, that is, the weight of the last section is not passed to the next section. After the joints are arranged with high-temperature refractory gaskets, they are connected by flanges, and the seals are airtight.

[0054]Equally if when disinfection tower 3 height is higher, disinfection tower 3 can be designed as multi-section series connection, and the weight of each joint is directly borne by disinfection tower support frame 8, that is, the weight of the last joint is not passed to the next joint...

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Abstract

The invention relates to the field of waste treatment, and provides a U-shaped high-temperature waste recycling furnace, which has the advantages of high treating capacity, environmental friendliness, economic efficiency, high metal recovering rate and high waste suitability. The U-shaped high-temperature waste recycling furnace comprises a vertical combustion tower, a horizontal smelting pond and a vertical disinfecting tower, wherein the top wall of one end of the smelting pond is provided with a first smelting pond inlet hole; the end wall of the smelting pond is provided with a second smelting pond inlet hole; the top wall of the other end of the smelting pond is provided with a smelting pond outlet hole; the top wall of the combustion tower is provided with a combustion tower inlet hole; the bottom wall of the combustion tower is provided with a combustion tower outlet hole; the bottom wall of the disinfection tower is provided with a disinfection tower inlet hole; the top end of the disinfection tower is provided with a smoke outlet; a first turbulent burner is arranged in the combustion tower inlet hole; the combustion tower outlet hole is in butt joint with the first smelting pond inlet hole; the smelting pond outlet hole is in butt joint with the disinfection tower inlet hole; and the side wall of the disinfection tower is provided with at least two air inlet holes. Due to the adoption of the U-shaped high-temperature waste recycling furnace, the problems of poor working condition stability during combustion of wastes and discharge of toxic gases in tail gas out of the standard are solved.

Description

technical field [0001] The invention relates to the field of waste treatment, in particular to a U-shaped waste high-temperature recycling disposal furnace. Background technique [0002] Waste circuit boards are different from general domestic waste. Waste circuit boards are composed of glass fiber reinforced resin, plastic and various metals, and also contain toxic brominated flame retardants. Waste circuit boards without components generally contain more than 20% copper. The circuit board of the component generally contains 25% copper, 5% iron, 5% aluminum, 0.5% nickel, and 40-80 grams / ton of precious metals, with a value of more than 20,000 yuan / ton. At present, the common method of waste circuit board disposal is incineration, in which the organic components are incinerated at high temperature, and the metal is melted and cast into mixed metal ingots. Traditional equipment emits a large amount of irritating odor and toxic waste gas containing a large amount of PCBs / diox...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00
Inventor 王威平艾元方
Owner ZHEJIANG HUANYI TECH
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