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BR-102024017590-A2 - PROCESS OF INDIVIDUALIZING MINERAL-METALLURGICAL PARTICLES BY THE ACTION OF COMBINED PHYSICAL PHENOMENA, DEVICE AND USE

BR102024017590A2BR 102024017590 A2BR102024017590 A2BR 102024017590A2BR-102024017590-A2

Abstract

The present invention demonstrates a process that promotes the individualization of small-sized mineral-metallurgical particles through the combined action of magnetic, hydrodynamic, and mechanical physical phenomena. These forces have distinct vectors that, when combined, promote the dispersion and individualization of the particles that make up the pulp made from these compounds. This pulp is subjected to these phenomena in a suitable tank so that the particles remain subjected to this process for the time required by each material. The process does not replace any other conventional material concentration process; it acts as an intermediate step prior to conventional concentration stages, such as Reichert spirals, flotation, hydrocyclones, etc., with the purpose of improving the performance of these conventional stages, which require greater individualization of the treated particles for better efficiency. As it operates solely through physical phenomena, it does not compromise the composition of the pulp or the water used, allowing for high-volume water recovery and recycling.

Inventors

  • IAN MARCUS DE SOUZA E SOUZA

Assignees

  • IAN MARCUS DE SOUZA E SOUZA

Dates

Publication Date
20260310
Application Date
20240827

Claims (9)

  1. 1- PROCESS OF INDIVIDUALIZING MINERALS AND METALLURGICAL PARTICLES THROUGH COMBINED PHYSICAL PHENOMENA, characterized by using the combined action of distinct physical phenomena of electromagnetism, hydrodynamics, and mechanical waves to promote the individualization of mineral-metallurgical particles that make up a pulp subjected to the process. This individualization acts in an intermediate stage, prior to the conventional concentration processes of these particles. Once individualized, the particles are concentrated more easily by the underlying conventional processes.
  2. 2- PROCESS, according to claim 1, characterized by the magnetic field causing oscillations between the two faces of the magnetic generators.
  3. 3- PROCESS, according to claims 1 and 2, characterized by the input material having ferromagnetic and/or ferrimagnetic and/or paramagnetic characteristics and/or materials with a response to magnetic field induction.
  4. 4- PROCESS, according to claim 1, characterized by the magnetic pulse cores having a ferromagnetic plate on the outside so that it is feasible to form a magnetic circuit where the pulp, composed of particles, is located between the inner faces of these cores and acts as part of this circuit, thus being exposed to the oscillating magnetic field.
  5. 5- PROCESS, according to claim 1, characterized by the magnetostrictive mechanical forces of the front faces of the magnetic cores promoting, orthogonally to each other, mechanical drag waves within the pulp volume.
  6. 6- DEVICE FOR INDIVIDUALIZING MINERAL-METALLURGICAL PARTICLES BY ACTION OF COMBINED PHYSICAL PHENOMENA, characterized by the electromagnetic transducers being installed in cavities in such a way as not to impair the circulation of the pulp, which is hydrodynamically circulated by a set of propellers (2) installed vertically, with adjustable speed and inclination, during the operation process of the device the pulp is sucked through a duct at the bottom of the tank (3) recirculating it until it is ready to be discharged, the pulp movement pump (4) directs the sucked flow to a valve (5) that automatically or manually adjusts the diversion of the flow to the return channel (6) or to the discharge duct (7).
  7. 7- DEVICE, according to claim 6, characterized by the electromagnetic transducer having field generating coils (8), with the magnetostrictive ferromagnetic front plate (9) and the ferromagnetic core that completes the magnetic circuit (10).
  8. 8- DEVICE, according to claims 6 and 7, characterized in that the interior of the electromagnetic transducers (1) has on the face of each transducer the magnetostrictive ferromagnetic faces (11) and on the back of these the ferromagnetic core (12) which completes the circuit of the transducers.
  9. 9- USE OF THE DEVICE FOR INDIVIDUALIZING MINERALS AND METALLURGICAL PARTICLES BY THE ACTION OF COMBINED PHYSICAL PHENOMENA, as defined in claims 6 to 8, characterized by the device (16) being able to be installed before traditional concentration processes (17) and a simple decantation system (18) that allows cleaning, recovery and recycling of the water used.

Description

Field of invention [001] The present invention applies to the industrial field of waste treatment and, in particular, to the area of mineral-metallurgical waste treatment. Currently, the treatments available for these wastes are limited and often ineffective in terms of recovery efficiency and reduction of waste, resulting in low efficiency of recycling processes. Therefore, the constant search for new technical solutions to better treat and recover these wastes, in a cleaner, more effective and more efficient way, is justified. [002] The present invention proposes a new treatment method that uses a combination of physical active principles to improve the yield and efficiency of metal recovery from these wastes. The method is safe, effective and does not present adverse collateral risks to the environment, since it acts with purely physical principles. The invention represents a significant innovation in the field of technological combination of physical phenomena and meets a critical need for more effective and accessible treatments for steelmaking waste, which is generated in ever-increasing quantities in the industrial area. Fundamentals of the invention [003] Industrial waste is mostly treated by gravity separation processes after being subjected to grinding or other liberation methods. This waste is subjected to processes that use density differences to recover the desired content. However, all of them leave levels of undesirable material in the concentrate and target material in the waste, precisely because they cannot achieve adequate particle liberation. Thus, many particles with different properties remain bonded together, impairing recovery yield. Another inefficiency is the energy consumption for this process, since most of these processes are based on grinding. Another factor that reduces the efficiency of these methods is the fact that most of the treated waste generates concentrates that are used in low-yield agglomerates, where they could be used more efficiently in other recycling stages. An example of material to be treated is waste with magnetic properties and responses, in this case, waste with a significant metallic content of pure iron, originating from steelmaking, or mining waste that still contains ore and, in this case, magnetite, allowing for an effective response when subjected to high-intensity magnetic fields. These concentrates, after recovery, can be used as raw material in the processes that generated them. [004] Although there are several types of processes and technologies for recovering steelmaking waste (steelmaking sludge, rolling mill scale, mining tailings, etc.), the process proposed here offers an advantage because, by acting only on physical and not chemical principles, in addition to enabling the individualization of the component particles of the waste, based on the magnetic response of its components, it uses the principle of differential inertial resistance between the components of these wastes, something that conventional processes cannot achieve. A high-intensity magnetic field, with adjustable frequency, is applied to a cylindrical tank, common in pulp treatment, with a water flow reversed to the discharge process. [005] This field is adjusted by frequency and intensity, based on the properties of the material to be treated. The counter-flow of water in the process takes a reverse vector in relation to the rotation vector of the pulp as well as the applied oscillating field. When exposed to the pulsed magnetic field, with adjusted frequency, the particles, both magnetic and non-magnetic, which are being dragged by the continuous flow of the pulp, caused by helical agitators, the magnetically susceptible particles undergo an orthogonal stress in relation to the tangential flow of the liquid, added to this is the drag of the water on a third axis and an efficiency of liberation and individualization of particles that have different properties is achieved. [006] The drag process affects all particles according to their size, the response to this variation in movement is given, however, by the differentiated density, since different densities create different masses for particles of the same size. [007] Each particle, according to its density, due to the actions of the laws of fluid dynamic drag, has a resultant force that acts individually, shearing the bonds between particles of different sizes, densities, and masses. Magnetic attraction, however, is based on the ferromagnetism of metallic particles and the ferrimagnetism of mineral particles. This field creates an attraction and repulsion, given the oscillation of the field, only for particles with a magnetic response, causing a force orthogonal to the flow for these metallic particles, while non-metallic particles are inert to this variable field, suffering drag according to the rotational flow. Thus, the resultant of the forces is oscillating and cyclical, since the material is circulating at a controlled s