U-shaped high-temperature waste recycling furnace

A waste and recycling technology, which is applied in the field of waste treatment, can solve the problems of excessive discharge of toxic and harmful gases, insufficient tail gas oxidation, and poor stability of working conditions, so as to avoid local high temperature phenomenon, inhibit the formation of dioxin, Effects of High Intensity Treatment

Inactive Publication Date: 2012-03-21
ZHEJIANG HUANYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 pro

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1, see figure 1 , a U-shaped waste high-temperature recycling treatment furnace, including a vertically arranged hollow combustion tower 1, a horizontally arranged hollow smelting pool 2 and a vertically arranged hollow sterilization tower 3.

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

Example Embodiment

[0052] Example 2, see Figure 5 , and the difference from the first embodiment is that the cross section of the inner cavity 28 of the smelting pool is circular.

[0053] In the above two embodiments, both the combustion tower 1 and the sterilization tower 3 are in the form of a single section. If the height of the combustion tower 1 is relatively high, the combustion tower 1 can be designed with multiple 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 upper section is not transferred to the lower section. High temperature refractory gaskets are arranged between the sections and the rear flange is connected, and the sealing is airtight.

[0054] Similarly, if the height of the sterilization tower 3 is relatively high, the sterilization tower 3 can be designed as a series of multiple sections, and the weight of each section is directly borne by the sterilization tower support frame...

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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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IPC IPC(8): B09B3/00B09B5/00
Inventor 王威平艾元方
Owner ZHEJIANG HUANYI TECH
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