Hazardous waste recovery processing production line

Abstract

The invention discloses a hazardous waste recovery processing production line which is reasonable in flow layout and capable of improving the production efficiency, saving energy and reducing emissions. According to the technical scheme, the hazardous waste recovery processing production line is characterized by comprising a smelting device, a collection tank and a slag fishing device; the smelting device comprises a smelting furnace arranged on the right side a storage tower; a feed port of the smelting furnace receives electroplating sludge coming from the storage tower through a conveyor belt, and the electroplating sludge is made into a melt through roasting; a water jacket for cooling a furnace body is arranged on the outer side of the smelting furnace; the water jacket is connected with a water tank through a pipeline; the water tank is arranged on a mounting rack erected on the outer side of the smelting furnace; the collection tank is arranged on the lower side of the smeltingfurnace and used for receiving the smelted melt coming from the smelting furnace; the upper end of the collection tank is provided with a slag discharge port used for discharging waste slag on the upper layer of the melt; and the slag fishing device is arranged on one side of the collection tank and suede for collecting waste slag discharged from the slag discharge port. The hazardous waste recovery processing production line is suitable for the technical field of environmental protection production lines.

Description

technical field [0001] The invention relates to the technical field of environmental protection production lines, and more specifically relates to a hazardous waste recycling and processing production line. Background technique [0002] The electroplating industry produces a large amount of electroplating sludge containing Cu, Ni and other heavy metals. Due to the different electroplating production processes, there are differences and the composition is very complex. The harm of electroplating sludge to the environment and human health has aroused great concern, and it is one of the public hazards recognized at home and abroad. Electroplating sludge contains a variety of metal components, and its quality is often higher than that of metal-rich ores. It is a cheap secondary renewable resource. In order to recover the metal resources in the electroplating sludge and realize the harmlessness of the sludge, smelting processing is often used to obtain the high-temperature melt ...

AI Technical Summary

Problems solved by technology

In order to recover the metal resources in the electroplating sludge and realize the harmlessness of the sludge, smelting processing is often used to obtain the high-temperature melt for preliminary removal of impurities, and then the high-temperature melt is recovered, using sulfuric acid as the leaching agent, after acid leaching and impurity removal , extraction, crystallization, and drying to obtain products such as copper sulfate and nickel sulfate. The existing hazardous waste recycling and processing production line has low production efficiency and large energy consumption, which is not conducive to the production needs of energy saving and emission reduction.

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