Low-temperature incinerator and brominated flame retardant tailing treatment and bromine recycling device

Abstract

The invention discloses a low-temperature incinerator and a brominated flame retardant tailing treatment and bromine recycling device. The low-temperature incinerator comprises an incinerator body, wherein multiple layers of circular incineration trays are arranged in the incinerator body; a feeding opening of each incineration tray on an odd layer is formed in the center of the circle of the incineration tray; and a feeding opening of each incineration tray on an even layer is formed in the periphery of the incineration tray. A rotary scraping device is arranged above each layer of incineration trays; and a rotary blow valve is arranged on the bottom of the incinerator body. The brominated flame retardant tailing treatment and bromine recycling device comprises a constant-temperature storage tank and the low-temperature incinerator; a tailing auger is arranged between a discharging opening of the constant-temperature storage tank and a feeding opening of the low-temperature incinerator; a gas phase outlet of the low-temperature incinerator communicates with a high-temperature incinerator; and a gas phase outlet of the high-temperature incinerator communicates with a spraying and absorbing tower. Near zero emission is realized during bromine recycling is realized, continuous feeding is realized, continuous production is also realized, and by continuous feeding, the incinerationefficiency is ensured.

Description

technical field [0001] The invention relates to the technical field of chemical solid tailings treatment, in particular to a brominated flame retardant tailings treatment and bromine recovery device. Background technique [0002] Brominated flame retardants represented by hexabromocyclododecane are easy to use and can be added directly in the post-treatment of textiles (polyester, viscose, blended, cotton, pure polyester), and the whole process of finishing can be completed at room temperature. It is a new type of pollution-free fiber flame retardant. Compared with the conventional product polybrominated diphenyl ether, the addition of this type of flame retardant has no toxic dibenzodioxane and polybromine when the polymer is thermally cracked or burned. Dibenzofuran produced. However, a large amount of solid tailings will be produced in the production process of such flame retardants, which not only causes environmental problems, but also restricts the production of such ...

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Problems solved by technology

However, a large amount of solid tailings will be produced in the production process of such flame retardants, which not only causes environmental problems, but also restricts the production of such flame retardants. At the same time, the tailings of brominated flame retardants contain a large amount of bromine, resulting in A great waste of resources, so solving the problem of tailings has become the top priority of the industry of brominated flame retardants

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