Chemical recycling equipment

Abstract

A chemical recovery device mainly comprises a housing with acid- and alkali-resistant outlet and inlet pipes at the top and bottom, respectively. The housing contains an internal space, and on one side of the housing is a corresponding opening for inserting a demister. The demister is a pyramid-structured packing material composed of structured, finely meshed monofilaments. This invention is intended for use in inorganic acid equipment such as etching tanks, electroplating tanks, and pickling tanks. The acid fumes from these equipment are intercepted by the internal pyramid-structured packing material and returned to the inorganic acid equipment for continued use, thereby reducing costs associated with replenishing new chemicals, adding chemicals to the scrubbing tower, and wastewater treatment.

Claims

1. A chemical recovery device, comprising: a housing having an acid and alkali resistant outlet pipe at the top for connection to an exhaust outlet pipe, and an acid and alkali resistant inlet pipe at the bottom for connection to inorganic acid equipment such as etching tanks, electroplating tanks, and pickling tanks, and an internal accommodating space; and a demister placed in the accommodating space of the housing, which is a pyramid-shaped packing material composed of structured, finely meshed monofilament material; so that the demister can intercept the acid fumes from the inorganic acid equipment and return them to the inorganic acid equipment tank for continued use, thereby reducing the costs of new chemical replenishment, scrubbing tower dosing, and wastewater treatment.

2. The chemical recovery equipment as described in claim 1, wherein, The bottom edge of the acid and alkali resistant outlet pipe is at least 10mm lower than the bottom plane of the inner edge of the upper part of the box.

3. The chemical recovery equipment as described in claim 1, wherein, The top edge of the acid and alkali resistant inlet pipe is more than 10mm higher than the bottom plane of the inner edge of the box.

4. The chemical recovery equipment as described in claim 1, wherein, The exhaust direction of the acid and alkali resistant outlet pipe is such that the exhaust diffuses from the center of the pipe body at an angle of less than 90 degrees along the pipe opening to both ends of the upper edge of the demister.

5. The chemical recovery equipment as described in claim 1, wherein, The intake direction of the acid and alkali resistant inlet pipe is to diffuse from the center of the pipe body at an angle of less than 60 degrees along the pipe opening to both ends of the lower edge of the demister.

6. The chemical recovery equipment as described in claim 1, wherein, One side of the housing has a filling opening corresponding to the accommodating space, for inserting the demister into the accommodating space.

7. The chemical recovery equipment as described in claim 1, wherein, The accommodating space is formed by support members located on both sides inside the box.

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