High-efficiency copper dissolving tank reshapes the pattern of clean production of non-ferrous metals

The high-efficiency copper dissolving tank adopts a modular composite structure, which is composed of three core units: tank body, liquid delivery system and copper dissolving device. The main body of the tank is made of acid-resistant materials with precision manufacturing, and a closed tank cover is installed on the top to effectively isolate gas volatilization and impurities from entering, thereby improving the safety of the reaction.
The tank body of the copper dissolving tank is the core bearing unit of the entire system. Its material is made of high-performance acid-resistant synthetic materials or specially treated stainless steel, polypropylene (PP) and other engineering plastics. It can withstand chemical corrosion in high-concentration sulfuric acid or nitric acid environments for a long time, keep the inner wall from being corroded, and the structure from being deformed, greatly extending the service life of the equipment.
In order to further ensure the sealing and safety during operation, a closed tank cover is installed on the top of the tank body. Its design takes into account both airtightness and ease of operation. Through the cooperation of the locking structure and the flexible sealing gasket, it can effectively prevent the leakage of acid mist, oxygen loss and foreign matter from entering the tank body during the volatilization of the copper solution, protecting the health of operators and the safety of the on-site environment.
The closed tank cover is also preset with multiple functional interfaces, including liquid inlet, liquid replenishment port, exhaust port, observation port, etc. The corresponding valves or sensors can be configured according to the actual process flow to realize intelligent management functions such as online monitoring, automatic liquid replenishment, and exhaust gas drainage.
The copper dissolution tank is equipped with an independent liquid delivery system, which extracts the copper ion-rich solution at the bottom of the tank through an acid-resistant circulation pump, and realizes high-speed mixing of oxygen and liquid through a precisely designed liquid oxygen injection mixer. The mixed foam flow not only has a high oxygen content, but also has extremely strong flow activity, providing power support for subsequent dissolution reactions. The liquid pipeline system is reasonably laid out according to the process distribution, realizing a closed loop design in which the liquid is extracted from the bottom of the tank and refluxed from the top or middle, minimizing oxygen loss and reaction dead corners, and improving the overall reaction efficiency.
Inside the tank, the high-efficiency copper dissolution tank integrates an advanced copper dissolution device, the core of which is a diversion structure composed of multi-layer swirl channels. The structure is arranged in a spiral shape along the tank wall, which can stimulate a strong vortex motion when the mixed liquid is injected into the tank body, produce a uniform and lasting flow field, and thus form a multi-layer fluid vortex similar to a "micro reaction chamber", so that the copper particles are constantly rolling and scouring in it, greatly improving the reaction rate and dissolution uniformity. There is also a grid cylinder inside to constrain the range of movement of the copper material to prevent the concentrated accumulation of materials from affecting the reaction efficiency. With the reasonable setting of the drainage port, liquid outlet, liquid replenishment hole and exhaust hole, it not only realizes the multi-point sampling and flow direction control of the fluid, but also facilitates daily maintenance and material replacement.
Inside the dissolution tank, there is a set of precisely designed multi-layer vortex channel structures. The structure is arranged along the tank wall, and guides the mixed liquid to form a large-scale vortex flow inside the tank body in a spiral diversion manner. This vortex can not only enhance the scouring force of the liquid on the surface of the copper material, break the boundary layer of the solution, and increase the probability of active contact on the copper surface, but also significantly improve the physical dissolution efficiency of oxygen and accelerate the process of copper transfer into the solution.
The tank body is also equipped with a grid cylinder to limit the movement trajectory of the copper material in the tank body, avoid material deposition or accumulation dead corners, and ensure the uniformity of the dissolution reaction space. In addition, multifunctional interfaces such as exhaust port, maintenance manhole, bottom drainage hole, middle liquid outlet hole and upper liquid replenishment hole provide great convenience and safety for the maintenance, replenishment, slag discharge, sampling and other operations of the equipment in long-term operation.
Compared with traditional static or stirring dissolution equipment, this high-efficiency copper dissolution tank doubles the contact area and reaction efficiency of the copper material with the solution per unit time through the triple reinforcement design of liquid oxygen injection + cyclone excitation + multi-point mixing, and the dissolution rate is increased by more than 2 times. This not only shortens the reaction time and improves the tank turnover rate, but also reduces acid consumption, oxygen consumption and power consumption, which is in line with the trend of green manufacturing.
In terms of environmental protection, since the system is a closed-loop circulation design, the oxygen injection control is adjustable and the foam reflux is controllable, which avoids the problems of traditional acid mist leakage and difficult tail gas control. With the back-end gas-liquid separation system, the residual gas can be further recovered to reduce the environmental pressure of the workshop.
Its structural materials are made of specially treated anti-corrosion composite materials and sealing components. The overall durability of the equipment is high, the maintenance cost is low, and it can operate stably in a highly acidic environment for a long time. The module interface also supports multi-tank parallel operation or access to an automated control system, providing strong compatibility for future intelligent mines and green metallurgical plants.
This high-efficiency copper dissolution tank is not only suitable for the dissolution of traditional electrolytic copper and copper oxide powder, but can also be widely used in printed circuit board (PCB) waste recycling, battery material recycling, semiconductor preparation, electroplating waste liquid resource reuse and other sub-industries. Especially in the fields of new energy material processing and precious metal extraction, its high efficiency, low residue and low pollution process characteristics will become a key equipment for enterprises to improve recovery rates and optimize product purity.