KR102583216B1 - Concentrate manufacturing system include induction heating device - Google Patents

Abstract

The present invention relates to a concentrate production system equipped with an induction electric heating device. According to one aspect of the present invention, a crushing step of crushing the ore mined during the mining process into 5 to 15 mm through a crusher, a pulverization step of inserting the crushed ore into a ball mill device and processing it into powder form, A specific gravity sorting step in which the pulverized ore is classified into primary metal ores containing metal components and primary non-metal ores containing non-metal components according to the difference in specific gravity using a specific gravity sorter to select the primary metal ores, in powder form. The primary metal ore is added, drugs and oil are added, and the primary metal ore is mixed with the drug and oil by rotation of the impeller to suspend non-metallic substances mixed in the primary metal ore to form secondary metal ores. In the flotation screening step of selecting, the secondary metal ore is heated with an induction electric heating device to melt it, and an alternating magnetic flux is generated by the flow of induction electricity to agitate the secondary metal ore to separate metals and non-metals in the secondary metal ore. Due to the difference in specific gravity, a smelting step of producing an ingot by cooling the secondary metal ore in a liquid state classified into the upper or lower portion, and when the ingot is moved and inserted, extracting a concentrate that crushes and pulverizes the ingot. Includes production steps.

Description

Concentrate manufacturing system includes induction heating device}

The present invention relates to a concentrate production system equipped with an induction electric heating device, and to an effective process for producing high-quality concentrate from natural ore to extract metal components.

In general, methods for obtaining metal components include recovering metals from products containing metal components for recycling and extracting metals from ores in a natural state.

In order to extract metal components from ore obtained in natural conditions, the ore must basically contain metal components. Ore containing metal components is manufactured into concentrate through a certain processing process. Using concentrate as the basic material, metal components can be extracted through separate processes such as electrolysis, leaching, and various acid treatments to obtain the metals contained in the concentrate.

The process of producing concentrate may vary at each site depending on the surrounding conditions, equipment, and type of extracted metal, but the goal of producing a high-quality concentrate may be the same. Ore is manufactured into concentrate through a set process. The desired metal is extracted using concentrate as a raw material, and the quality of the concentrate can determine the amount of metal to be extracted. However, the conventional technology has a problem in that it is difficult to extract metals because the concentrate from which metal components can be extracted must be maintained in a high quality state.

The present invention was developed based on the above technical background, and the present invention attaches a heating rod to an induction electric heating furnace and provides a heating rod made of the same material as the heat conduction part to increase the efficiency of the heating furnace and extend the life of the crucible. The purpose is to provide an induction electric heating device including a heating rod that allows easy replacement of the crucible and reduces cost.

In order to achieve the above object, the present invention includes a crushing step in which the ore mined during the mining process is crushed to 5 to 15 mm through a crusher, and a crushing step in which the crushed ore is inserted into a ball mill device and processed into powder form. , A specific gravity sorting step in which the ore pulverized into powder is classified into primary metal ores containing metal components and primary non-metal ores containing non-metal components according to the difference in specific gravity using a specific gravity sorter to select the primary metal ores. , the primary metal ore in powder form is added, drugs and oil are added, the primary metal ore is mixed with the drug and oil by rotation of the impeller, and non-metallic substances mixed in the primary metal ore are suspended. In the flotation screening step of selecting secondary metal ore, the secondary metal ore is heated with an induction electric heating device, melted, and an alternating magnetic flux is generated by the flow of induction electricity, and the secondary metal ore is agitated to produce the secondary metal ore. A smelting step to produce an ingot by cooling the liquid secondary metal ore classified into the upper or lower portion due to the difference in specific gravity between metals and non-metals inside, and a concentrate to crush and crush the ingot when the ingot is moved and inserted. It may include a concentrate production step of extracting.

In addition, a dehydration step of injecting the secondary metal ore separated in the flotation screening step into a dehydrator to primarily dehydrate the moisture contained in the secondary metal ore, and inserting the dehydrated secondary metal ore into a dryer to remove secondary metal ore. It may further include a drying step to remove moisture.

In addition, it may further include a roasting step of removing the sulfur (S) component contained in the secondary metal ore by additionally heating the dried secondary metal ore and moving the secondary metal ore to the smelting step. You can.

In addition, a roasting step of removing the sulfur (S) component contained in the secondary metal ore by additionally heating the ingot and moving the secondary metal ore to the concentrate production step may be further included.

In addition, the specific gravity sorting step extends from the top to the bottom, is formed to be inclined at a predetermined angle, and a vibrating device is connected to vibrate along the width direction when the pulverized ore falls on the upper side to move the pulverized ore downward. It may include a vibration sorting step of selecting the pulverized ore by installing a plate that moves it.

Additionally, the plate may have a falling point where the pulverized ore falls, and the falling point may be formed at a portion where one end is located higher than the other end.

In addition, the induction electric heating device includes a pair of supports installed perpendicularly to the floor, spaced apart from the support in an inner direction of the support, and inserted into a melted portion forming an internal space and an internal space of the melted portion. , It may include a container that is in close contact with the inner surface of the melting portion and has a heating rod protruding upwardly installed therein to melt the melt inserted therein.

In addition, the molten part is installed inside a housing with a space formed inside the container into which the container is inserted, a space formed inside the housing, a coil part forming induction electricity, and an inside of the coil part, It may include a heat conduction part that is in close contact with the coil part and generates heat according to the induced electricity of the coil part.

In addition, the heat conduction part is installed at the top of the container, can be separated from the container when the molten part moves upward along the support, seals the container when it moves downward, and has a heat conductive layer made of graphite on the surface in contact with the container. is formed, and a coil portion that is in close contact with the heat-conducting layer and transfers heat to the heat-conducting layer may be installed on the outer surface of the heat-conducting layer.

Additionally, the heating rod and the heat conduction part may be formed of any one of graphite, ceramic, and silicon carbide.

Additionally, the heating rod may be installed on the inner side of the container and may be formed of the same material as the heat conductive portion.

Additionally, the heating rod may include an extension member extending in the longitudinal direction of the container and having a plurality of protrusions partially in contact with the outer surface of the heating rod having a ring-shaped cross-section.

A concentrate manufacturing system equipped with an induction electric heating device according to an embodiment of the present invention reduces the manufacturing cost of concentrate with economic value from ore and improves manufacturing quality through a concentrate process that adds an induction electric heating device. You can do it.

1 is a flow chart of a concentrate manufacturing system equipped with an induction electric heating device according to an embodiment of the present invention.
Figure 2 is a diagram showing a crushing device according to an embodiment of the present invention.
Figure 3 is a diagram showing a grinding device according to an embodiment of the present invention.
Figure 4 is a diagram showing a specific gravity separator according to an embodiment of the present invention.
Figure 5 is a diagram showing a float separator according to an embodiment of the present invention.
Figure 6 is a diagram showing a dehydration and dryer according to an embodiment of the present invention.
Figure 7 is a front view of an induction electric heating device according to an embodiment of the present invention.
Figure 8 is a view of the induction electric heating device according to an embodiment of the present invention moved upward.
Figure 9 is a cross-sectional view of an induction electric heating device according to an embodiment of the present invention.
Figure 10 is a diagram showing a heating rod according to an embodiment of the present invention.
Figure 11 is a flow chart of a concentrate manufacturing system equipped with an induction electric heating device according to another embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings.

The advantages and features of the present invention and how to achieve it will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms. These embodiments only serve to ensure that the disclosure of the present invention is complete and are within the scope of common knowledge in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Additionally, in describing the present invention, if it is determined that related known techniques may obscure the gist of the present invention, detailed description thereof will be omitted.

Figure 1 is a flow chart of a concentrate manufacturing system equipped with an induction electric heating device according to an embodiment of the present invention, Figure 2 is a diagram showing a crushing device according to an embodiment of the present invention, and Figure 3 is an embodiment of the present invention. It is a drawing showing a grinding device according to an embodiment, Figure 4 is a drawing showing a specific gravity separator according to an embodiment of the present invention, Figure 5 is a drawing showing a floatation separator according to an embodiment of the present invention, and Figure 6 is a drawing showing a flotation separator according to an embodiment of the present invention. This is a diagram showing a dehydration and dryer according to an embodiment of the present invention, Figure 7 is a front view of an induction electric heating device according to an embodiment of the present invention, and Figure 8 is an induction electric heating device according to an embodiment of the present invention. is a view moved upward, Figure 9 is a cross-sectional view of an induction electric heating device according to an embodiment of the present invention, and Figure 10 is a view showing a heating rod according to an embodiment of the present invention.

Referring to Figures 1 to 10, the concentrate manufacturing system (S10) equipped with an induction electric heating device according to an embodiment of the present invention is easy to select the specific gravity of the ore or ore (R), and the concentrate is of high quality. In order to easily obtain metal, when ore (R) is injected, it undergoes a crushing step (S100), a grinding step (S200), a specific gravity selection step (S300), a flotation step (S400), and a dehydration step (S500). ), drying step (S600), roasting step (S700), smelting step (S800), and concentrate production step (S900).

Ore (R) can be mined in mines. Additionally, the raw light R may contain metal components. In addition, the raw ore (R) can be inserted into the concentrate manufacturing system (S10) to produce a high-quality concentrate (r) that may contain many metal components. At this time, the mined ore (R) may have a specific gravity between 1.6 and 1.9. Additionally, the specific gravity of the required concentrate (r) may be 19.3 for gold, 10.49 for silver, 22.42 for iridium, and 12.4 for rhodium.

The mined ore (R) may first be crushed to a certain size through a crushing step (S100). Additionally, the crushing device 1000 for crushing the ore R in the crushing step (S100) may be a crusher. In addition, the size of the ore (R) crushed by the crusher may be 5 mm to 15 mm. At this time, the crushed ore (R) may be subjected to a crushing step (S200).

In the pulverizing step (S200), the ore (R) of 5 mm to 15 mm can be pulverized more finely. Additionally, in the pulverizing step (S200), the pulverizing device 2000 for pulverizing the particles of the ore R into small pieces may be a ball-mill device. Through this, the ore (R) can be pulverized into powder form. At this time, the operating time of the ball mill device, which may be a grinding device, may vary depending on the size of the ore R to be inserted.

In addition, the crushing step (S100) and the crushing step (S200) can be simultaneously crushed and pulverized with a hammer so that they can be crushed and pulverized with one device. At this time, the pulverized ore (R) may be inserted into the specific gravity selection step (S300) to perform the specific gravity selection step (S300).

In the specific gravity selection step (S300), when the pulverized ore (R) is input to the upper side, the input ore (R) can be slid and moved in all directions. In addition, in the specific gravity selection step (S300), the raw ore (R) crushed into powder is divided into primary metal ore containing metal components and primary non-metal ore containing non-metal components according to the difference in specific gravity using a specific gravity sorter (3000). You can classify and select primary metal ores.

In addition, in the specific gravity selection step (S300), a plate-shaped plate 3100 may be installed so that the ore (R) crushed into powder form can be classified and moved according to specific gravity when moving downward through vibration.

Plate 3100 may extend in the longitudinal direction as shown in FIG. 5 . Additionally, the plate 3100 may be formed to be inclined at a predetermined angle from the front end to the rear end.

Additionally, the plate 3100 may have a width along the y-axis. In addition, the plate 3100 is connected to a vibrating device and can be vibrated in the width direction, so that when the pulverized ore (R) moves downward, the ore (R), which has a light weight in specific gravity, moves downward from the portion located on the right side of the upper side. It may fall.

In addition, the more central the ore (R) is, the more it can fall downward from the part located on the left, and depending on the specific gravity of the ore (R), the ore (R) may fall in different locations, causing the ore (R) to fall. It can be sorted according to specific gravity, so primary metal ore (M1), which can be powdered ore (R) containing metal, can be classified.

Additionally, a drop point P may be formed on the upper left side of the plate 3100. By setting the falling point (P), when the source light (R) moves downward, the more the source light (R) is guarded, the more it can be moved to the right. At this time, the ore (R) pulverized in the pulverizing step (S200) may fall above the falling point (P) of the plate (3100).

In addition, after the specific gravity sorting step (S300) is performed, the primary metal ore (M1) in powder form separated by specific gravity may be input to the flotation sorting step (S400).

In the flotation sorting step (S400), primary metal ore (M1) in powder form is introduced into the housing 4000 of the flotation sorter 4000, drugs and oil are added, and the primary metal ore is separated by rotation of the impeller 4500. Can be mixed with drugs and oils. Additionally, in the flotation and selection step (S400), the secondary metal ore (M2) can be selected by floating the non-metallic material mixed in the primary metal ore (M1). At this time, the housing 4100 may include an impeller 4500 and a stirring shaft 4300 so that the primary metal ore (M1) can be separated from each other according to specific gravity.

Primary metal ore (M1) may be introduced into the housing 4100, and drugs, oil, etc. may be introduced into the housing 4100. At this time, drugs and oils suitable for the properties of each metal can be added. Through this, ores containing metals with a large specific gravity can sink to the bottom, and non-metals with a small specific gravity can float to the top.

Additionally, an impeller 4500 may be installed inside so that the added drug and oil and the primary metal ore (M1) can be stirred. At this time, the impeller 4500 may be formed with a plurality of blades protruding to the left or right inside the housing 4100.

Additionally, a stirring shaft 4300 may be connected to the center of the impeller 4500. In addition, as the stirring shaft 4300 located inside the housing 4100 rotates, the impeller 4500 connected to the outer surface of the stirring shaft 4300 rotates to remove drugs, oils, and primary foaming agents. Metal ore (M1) can be mixed. Through this, the primary metal ore (M1) can be effectively mixed with the drug and oil.

Additionally, the upper end of the stirring shaft 4300 may be connected to a drive motor that rotates the stirring shaft 4300. By rotating the stirring shaft 4300, the motor can provide driving force that allows the stirring shaft 4300 to rotate.

For example, when the driving motor connected to the upper end of the stirring shaft 4300 provides driving force, the stirring shaft 4300 rotates, and the impeller connected to the outer surface of the stirring shaft 4300 located inside the housing 4100 (4500) can rotate to rotate the drug, oil, and primary metal ore (M1), thereby removing suspended matter attached to the primary metal ore (M1), so that the metal with a large specific gravity sinks to the bottom and has a relatively specific gravity. This small suspended matter can be moved to the top and separated to produce secondary metal ore (M2).

At this time, the secondary metal ore (M2) can be injected into a dehydrator to perform a dehydration step (S500) in which moisture contained in the secondary metal ore (M2) can be primarily dehydrated. In addition, after the dehydration step (S500) is performed, the primarily dehydrated secondary metal ore (M2) can be inserted into the dryer to perform the drying step (S600). In addition, in the drying step (S600), a heating device is installed inside, so that the secondary metal ore (M2) is heated by heat and moisture can be removed secondarily. At this time, dehydration and drying can be performed by blowing high temperature wind.

Thereafter, the secondary metal ore (M2) that has passed the drying step (S600) may be subjected to a roasting step (S700).

The roasting step (S700) may be a step of removing sulfur (S) components that may be included in the secondary metal ore (M2). At this time, this step may be performed only for metals that contain sulfur (S) component among secondary metal ores (M2) and for which the sulfur (S) component must be removed. At this time, in the roasting step (S700), the contents may be inserted into the container 100 and heated to over 1000 degrees and then roasted. After this, the roasting step (S700) may be performed, and then the smelting step (S800) may be performed.

In the smelting step (S800), the ore is melted and classified by specific gravity difference when the smelting process is performed using an induction electric heating furnace. For example, when ore and a solvent are mixed and heated in an induction electric heating furnace to dissolve the secondary metal ore (M2), the flow of induction electricity occurs in the vessel 5700 of the induction electric heating furnace according to the operating principle of the induction heating furnace. Due to the alternating magnetic flux, a stirring action occurs and the metallic and non-metallic components contained in the ore may be separated due to the difference in specific gravity, thereby producing an ingot (not shown).

An ingot is a collection of metallic elements solidified into a solid state. In addition, if the ingot is crushed and pulverized to produce concentrate in powder form, the concentrate can be used as a basic material to obtain the desired metal.

Referring to FIGS. 7 to 10, the induction electric heating device 5000 including a heating rod according to an embodiment of the present invention melts and cools the ore so that the metal in the ore can be easily separated due to the difference in specific gravity of the ore. It may include a melting unit 5100, a cooling device 5200, and a control unit 5300.

The melting unit 5100 can melt and separate the ore when induction electricity flows into the ore. In addition, the principle of induction heating can be used to heat the inside of the molten part 5100 through electromagnetic induction by flowing current into the molten part 5100. At this time, in order to cool the inside of the melted portion 5100 after it is heated, a cooling device 5200 may be installed outside the melted portion 5100 and spaced apart from the melted portion 5100.

The cooling device 5200 may cool the interior of the melted portion 5100 by circulating coolant, etc. into the inside of the coil member 5131 installed inside the melted portion 5100. At this time, a control unit 5300 may be installed to raise the temperature of the melted portion 5100 to a preset temperature and cool the interior of the melted portion 5100.

The control unit 5300 is installed spaced apart from the outside of the melting unit 5100 and connected to the melting unit 5100, and when the temperature becomes too high to control it to a preset temperature, it operates the cooling device 5200 to remove the coil member ( 5131), the coolant flows inside, and when the temperature decreases, the temperature can be raised by controlling the current.

In addition, the melting part 5100 melts and cools the ore inside, and the cooled and separated ore can be easily discharged to the outside through the melting part 5100, and the device inside the melting part 5100 can be separated and cooled. To facilitate management, a support portion 5500 spaced apart from the melted portion 5100 may be included on the side of the melted portion 5100.

The support part 5500 is connected to the melting part 5100 so that the melting part 5100 moves upward and downward, so that the container 5700 can be sealed or discharged to the outside, including a support member 5510 and a slide groove 5530. ) and a connection member 5550.

The support member 5510 may be formed with a square or circular cross-section. Additionally, the support member 5510 may be installed in a direction perpendicular to the floor surface. For example, the support member 5510 may extend upward from the floor surface. Additionally, the support members 5510 may be formed as a pair. A melted portion 5100 may be installed between the pair of support members 5510. At this time, a slide groove 5530 may be formed on surfaces of the pair of support members 5510 facing each other.

The slide groove 5530 may be formed along the longitudinal direction of the support member 5510. Additionally, the slide groove 5530 may be formed on the side facing the melted portion 5100.

Additionally, the slide groove 5530 may be connected to the melted portion 5100 so that the melted portion 5100 can move upward and downward of the slide groove 5530. Additionally, the slide groove 5530 can guide the distance that the melted portion 5100 moves upward and downward. At this time, the slide groove 5530 may have the connecting member 5550 protrude toward the melted portion 5100.

The connecting member 5550 may protrude from the outer surface of the melted portion 5100. Additionally, the connecting member 5550 may be installed below the melted portion 5100. Additionally, the connecting member 5550 can be moved upward and downward along the slide groove 5530. Additionally, the end of the connecting member 5550 may be connected to the outer surface of the melted portion 5100.

Through this, when the connecting member 5550 moves upward and downward along the slide groove 5530, the melted portion 5100 connected to the end of the connecting member 5550 can be moved upward and downward, so that the melted portion ( It may be in close contact with or separated from the container 5700 installed inside the container 5100).

In the melting portion 5100 according to an embodiment of the present invention, a container 5700 is inserted inside the melting portion 5100 so that the ore can be melted by introducing ore into the inside, and induction electricity is applied to the outer surface of the container 5700. It may include a housing 5110, a coil part 5130, and a heat conduction part 5150 so that it can be heated through.

The housing 5110 may include a cover 5111, a sealing member 5113, and a body member 5115 so that the container 5700 can be inserted into the lower portion and the upper portion can be sealed. The cover 5111 may be located on top of the body member 5115. Additionally, the cover 5111 can be combined or separated, allowing the body member 5115 to be sealed and opened.

In addition, when the cover 5111 is opened, the temperature inside the body member 5115 can be lowered, and when the container 5700 is heated, the inside of the body member 5115 can be sealed by combining the cover 5111. At this time, a sealing member 5113 may be formed to seal the cover 5111 coupled to the upper portion of the body member 5115 and the upper surface of the body member 5115.

The sealing member 5113 may be formed with a ring-shaped cross section. Additionally, the sealing member 5113 is made of a material such as concrete and can completely seal the outer surface of the cover 5111 and the upper surface of the body member 5115. Through this, it is possible to prevent heat generated by heating the inside of the body member 5115 from escaping to the outside of the body member 5115.

The body member 5115 may be formed with a circular or square cross-section. Additionally, the body member 5115 may be packed on the inside with a material with excellent thermal insulation performance, such as concrete, thereby preventing heat generated inside from being discharged to the outside.

In addition, a hole may be formed inside the body member 5115, so that the melted portion 5100 is fixed downward when it moves downward along the support portion 5500, and the container 5700 with ore contained therein is formed in the body. It may be inserted into the lower part of member 5115. At this time, the outer surface of the container 5700 may be in close contact with the coil part 5130 and the heat conduction part 5150 that can be installed along the outer surface of the hole formed in the center of the body member 5115.

The coil portion 5130 may be formed with a ring-shaped cross section. Additionally, the coil unit 5130 may be connected to a control unit 5300 that supplies inductive power. Additionally, the coil unit 5130 may be installed on the outer surface of the container 5700 to be spaced apart from the container 5700. That is, it may be built into the body member 5115.

The coil unit 5130 generates induced electricity to heat the container 5700 when the container 5700 inserted into the body member 5115 is inserted into the body member 5115. (5700) A coil member 5131 may be formed inside to melt the ore inside.

The coil member 5131 may be formed in a coil shape extending from downward to upward. Additionally, the coil member 5131 can heat the container 5700 and the heat conduction unit 5150 by generating induced electricity when a current is transmitted through the control unit 5300.

In addition, the coil member 5131 can stir the melted matter, which may be ore, etc. in the vessel 5700 by alternating operation within the container 5700 by induction electricity, so that the melted matter, which may be metal or non-metal, is dissolved. The same components can be separated, melts with relatively low specific gravity are moved to the upper layer of the crucible, and metal components with high specific gravity can sink to the lower layer of the crucible and be separated in the form of ingots.

In addition, a hollow portion may be formed inside the coil member 5131, so that after the container 5700 is heated and melted and the metal and non-metal inside are separated, coolant, etc. is injected into the hollow portion and circulates, thereby forming the container. (5700) The dissolved substance inside can be solidified again.

At this time, the heat transfer efficiency is improved by the induction electricity of the coil member 5131, the heating efficiency of the container 5700 is improved, and the heating rod 5730 installed inside the container 5700 can be easily heated, The heat conduction unit 5150 may be in close contact with the inner surface of the coil unit 5130 so that it can be easily attached and detached for easy maintenance.

The heat conduction portion 5150 may be formed with a ring-shaped cross section. Additionally, the heat conduction portion 5150 may be formed of a material such as graphite, ceramic, or silicon carbide.

Additionally, the heat-conducting portion 5150 may be in close contact with the inner surface of the coil portion 5130. In addition, the heat-conducting portion 5150 can be installed in response to holes of various sizes in the coil portion 5130 installed inside the body member 5115, and the first heat-conducting layer 5151 and It may include a second heat-conducting layer 5153.

The first heat-conducting layer 5151 may be formed with a ring-shaped cross section. In addition, the first heat-conducting layer 5151 is formed into a ring-shaped cross-section by combining two conductive members 5151a and 5151b formed in a half-arc shape, so that a flow hole 5151a can be formed therein. The conductive members 5151a and 5151b may be formed in shapes that correspond to each other.

For example, a first protruding member 5151d may be formed protruding from the right side of the conductive member 5151a located on the left. In addition, the left side of the conductive member 5151b located on the right may be formed in a shape that is recessed inward, and the second protruding member 5151e protruding to the left may be formed to protrude, so that the inner side of the conductive member 5151a It can be inserted into the lead-in part.

Through this, the protruding and retracting shapes are repeatedly formed along the longitudinal direction from the top to the bottom along the outer surface, so that the conductive members 5151a and 5151b that are coupled to each other can be fitted into each other.

Through this, the first heat-conducting layer 5151 can be easily attached and detached from the inner surface of the coil unit 5130, making it easy to replace the first heat-conducting layer 5151, making it easy to maintain the heat-conducting part 5150. This can be done, and the management cost of the melting unit 5100 can be reduced.

At this time, the first heat-conducting layer 5151 may be formed to have a diameter corresponding to the hole formed on the inner surface of the coil unit 5130, and a second heat-conducting layer 5153 may be formed inside the first heat-conducting layer 5151. 1 It is formed with a diameter corresponding to the hole formed on the inner surface of the heat-conducting layer 5151, so that it can be tightly coupled to the inner surface of the first heat-conducting layer 5151.

That is, the second heat-conducting layer 5153 may be formed in a shape and material corresponding to the first heat-conducting layer 5151, and the length of the second heat-conducting layer 5153 has a diameter smaller than that of the first heat-conducting layer 5151. can be formed.

Through this, when the container 5700 is inserted inside, the heat conductive portion 5150 corresponding to the containers 5700 of different sizes can be manufactured on site, so that it corresponds to the size of the container 5700 and is easy to replace. In addition, the heat conduction part 5150 can be provided with a thickness required according to the heat conduction efficiency, so the installation cost and time of the melting part 5100 installed for each size of the container 5700 can be reduced.

At this time, the container 5700 is inserted into the hole formed inside the heat-conducting portion 5150 and is in close contact with the inner surface of the heat-conducting portion 5150, and the inside of the container 5700 that is in close contact may be made of the same material as the heat-conducting portion 5150. By installing the heating rod 5730 inside the container 5700, dissolution of dissolved substances such as ore inserted into the container 5700 can be facilitated.

For example, if the heat-conducting part 5150 is made of a graphite material, the heating bar 5730 may be made of the same material, graphite. If the heating bar 5730 is made of ceramic, the heat-conducting part 5150 may be made of a ceramic material. It can be formed as, and if the heat conduction part 5150 is made of silicon carbide, the heating rod 5730 can be made of silicon carbide, and can be heated equally by the induced current to heat the inside of the container 5700. .

The container 5700 may include a container body 5170 with an open top and a groove formed therein, and a heating rod 5730 installed inside the container body 5170.

The container body 5170 may be formed with a circular cross-section. Additionally, a groove may be formed on the upper surface of the container body 5170, so that dissolved substances such as ore can be inserted therein. At this time, inside the container body 5170, a heating rod 5730 installed upward from the bottom of the groove formed in the container body 5170 is formed of the same material as the heat conduction portion 5150, and is heated by induction electricity. The melting efficiency of the melt can be improved.

A plurality of heating rods 5730 may be installed inside the container body 5170. Additionally, the heating rod 5730 may be formed of the same material as the heat conductive portion 5150. Through this, when the heat conduction part 5150 is heated through the coil part 5130, the heating rod 5730 can be heated at the same time, improving the dissolution efficiency of the melted material, which may be ore, introduced into the container body 5170. You can do it.

Additionally, a plurality of heating rods 5730 may be installed inside the container body 5170. Additionally, the heating rod 5730 can be manufactured and installed in various shapes. For example, the heating rod 5730 may be formed in a cylindrical shape. Additionally, the heating rod 5730 may have a square cross-section, a triangular cross-section, or a hexagonal cross-section to form a pillar shape.

Additionally, the heating rod 5730 may have a circular cross-section and a triangular protruding portion on its outer surface in the outward direction. Through this, dissolution efficiency can be improved by improving the contact area between the melt and the heating rod 5730.

Additionally, the heating rod 5730 may be formed with a ring-shaped cross section. Additionally, the heating rod 5730 may be formed in a shape extending in the longitudinal direction, which may be above the container body 5170. That is, it may be formed in a cylindrical shape.

Additionally, an extension member (E) protruding outward may be coupled to the outer surface of the heating body (B), which may have a ring-shaped cross section of the heating rod (5730). The extension member (E) may have a space formed inside it. Additionally, the edge formed at the inner end of the extension member (E) may be in contact with the outer surface of the ring-shaped cross section of the heating body (B). That is, when the ring-shaped cross-section is heated, the heated heat is transferred to the extension member (E), thereby improving the contact area with the melt.

At this time, a plurality of holes may be formed on the outer surface of the heating rod 5730 formed with a ring-shaped cross-section, and a plurality of holes may be formed on the outer surface of the extension member (E), so that when the melt becomes a fluid, Since the melted fluid can flow inside and outside the heating rod 5730, heat transfer efficiency can be improved by improving the contact area and contact time between the melted material and the heating rod 5730. In addition, the extension member (E) is formed of the same material as the heat conductive portion 5150 and the heating rod 5730, so that it can be heated equally by induction electricity.

That is, the molten portion 5100 may have a plurality of heating rods 5730 formed inside the container 5700 of the same material as the heat-conducting portion 5150, so that the heat-conducting portion 5150 is heated and the heating rods 5730 ) is heated to improve the dissolution rate and dissolution efficiency of the melt, and as the housing 5110 is connected to the support part 5500, it can slide to the upper part of the container 5700, so that the container 5700 and the housing (5110) is easy to attach and detach, and the thickness of the heat-conducting part 5150 is made up of multiple layers inside the housing 5110, so the heat-conducting part 5150 can be easily replaced, making maintenance simple. By producing an ingot-shaped material by separating materials according to the specific gravity of the melt through the alternating magnetic flux of induction electricity, the melting efficiency of the melt can be improved, melting costs can be reduced, and maintenance can be simplified.

Figure 11 is a concentrate manufacturing system equipped with an induction electric heating device according to another embodiment of the present invention.

A detailed description of the same configuration of one embodiment of the present invention and another embodiment of the present invention will be described above, and only the configuration with differences will be described.

Referring to FIG. 11, the roasting step (S700) generates a concentrate (r), and the crushed or pulverized concentrate (r) is introduced to remove sulfur (S) at the end, so that the concentrate (r) to be finally used is Only can be selectively removed, which can reduce costs.

As described above, the concentrate manufacturing system (S10) equipped with an induction electric heating device can improve melting efficiency through the induction electric heating device (5000) with increased thermal efficiency, when manufacturing concentrate (r). The quality of the concentrate (r) is improved, and the dehydration, drying, and drainage processes can be performed at once, so the manufacture of the concentrate (r) can be performed in one process, and the manufacturing cost can be reduced.

The present invention has been described above with reference to the embodiment(s) shown in the drawings, but this is merely illustrative, and various modifications may be made by those skilled in the art. It will be understood that all or part of (s) may be optionally combined. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the attached claims.

S10: Concentrate manufacturing system with induction electric heating device
S100: Crushing step S200: Crushing step
S300: Gravity selection step S400: Flotation selection step
S500: Dehydration step S600: Drying step
S700: Roasting step S800: Melting step
S900: Concentrate production stage
1000: crushing device 2000: crushing device
3000: Gravity separator 4000: Flotation separator
5000: Induction electric heating device 5100: Melting section
5110: Housing 5130: Coil portion
5131: Coil member
5200: Cooling device 5300: Control unit
5500: Support 5700: Container 5710: Container body
5730: Heating rod 6000: Dewatering and drying device
6100: Dehydrator 6300: Dryer
B: Heating body E: Extension member
P: Falling point R: Won-gwang
r: Concentrate M1: Primary metal ore
M2: Secondary metal ore

Claims (12)

A crushing step in which the ore mined during the mining process is crushed into 5 to 15 mm pieces through a crusher;
A grinding step in which the crushed ore is inserted into a ball mill device and processed into powder form;
A specific gravity sorting step of sorting primary metal ores containing metal components and primary non-metal ores containing non-metal components according to differences in specific gravity using ore pulverized into powder using a specific gravity sorter to select the primary metal ores;
The primary metal ore in powder form is added, drugs and oil are added, and the primary metal ore is mixed with the drug and oil by rotation of the impeller to suspend the non-metallic substances mixed in the primary metal ore 2. A flotation screening step for sorting secondary metal ores;
The secondary metal ore is heated with an induction electric heating device, melted, and an alternating magnetic flux is generated by the flow of induction electricity, causing the secondary metal ore to be stirred, resulting in a difference in specific gravity between metals and non-metals in the secondary metal ore, causing the upper Or a smelting step of producing an ingot by cooling the secondary metal ore in a liquid state classified into the lower part, and
When the ingot is moved and inserted, a manufacturing method is performed including a concentrate production step of extracting a concentrate for crushing and pulverizing the ingot,
The induction electric heating device,
A pair of supports installed perpendicularly to the floor surface;
a melted portion installed to be spaced apart from the support portion in an inner direction of the support portion and forming an internal space; and
It is inserted into the inner space of the melting section, is in close contact with the inner surface of the melting section, and includes a container in which a heating rod protruding upward is installed to melt the melt inserted therein,
The molten part,
A housing with a space formed therein into which the container is inserted;
A coil unit installed inside the housing, forming a space therein, and generating induction electricity; and
A heat conduction part installed inside the coil part and in close contact with the coil part to generate heat according to the induced electricity of the coil part,
The heat conduction part,
It is installed at the top of the container, can be separated from the container when the molten part moves upward along the support, seals the container when it moves downward, and a heat-conducting layer made of graphite is formed on a surface in contact with the container, and the heat conduction A concentrate manufacturing system equipped with an induction electric heating device including a heating rod installed on the outer surface of the layer in close contact with the heat-conducting layer and a coil portion that transfers heat to the heat-conducting layer.
According to claim 1,
A dehydration step of injecting the secondary metal ore separated in the flotation screening step into a dehydrator to primarily dehydrate the moisture contained in the secondary metal ore, and
A concentrate manufacturing system equipped with an induction electric heating device to perform a manufacturing method further comprising a drying step of inserting the dehydrated secondary metal ore into a dryer to secondarily remove moisture.
According to clause 2,
A manufacturing method further comprising a roasting step of removing the sulfur (S) component contained in the secondary metal ore by additionally heating the dried secondary metal ore and moving the secondary metal ore to the smelting step. A concentrate manufacturing system equipped with an induction electric heating device that performs.
According to clause 2,
Induction of performing a manufacturing method further comprising a roasting step of removing the sulfur (S) component contained in the secondary metal ore by additionally heating the ingot and moving the secondary metal ore to the concentrate production step. Concentrate manufacturing system equipped with electric heating device.
According to claim 1,
The gravity selection step is,
It extends from the top to the bottom, is formed to be inclined at a predetermined angle, and when the crushed ore falls on the upper side, a vibration device is connected to vibrate along the width direction, and a plate is installed to move the crushed ore downward. A concentrate manufacturing system equipped with an induction electric heating device that performs a manufacturing method including a vibration sorting step for sorting the ore.
According to clause 5,
The plate is,
A concentrate manufacturing system equipped with an induction electric heating device in which a falling point is formed where the pulverized ore falls, and the falling point is formed at a portion where one end is located above the other end.
delete delete delete According to claim 1,
A concentrate manufacturing system equipped with an induction electric heating device in which the heating rod and the heat conduction portion are made of any one of graphite, ceramic, and silicon carbide.
According to claim 10,
The heating rod is,
A concentrate manufacturing system provided with an induction electric heating device installed on the inner side of the container and including a heating rod made of the same material as the heat conductive portion.
According to claim 1,
The heating rod extends in the longitudinal direction of the container and includes an extension member formed with a plurality of protrusions partially in contact with the outer surface of the heating rod having a ring-shaped cross-section. A concentrate manufacturing system equipped with an induction electric heating device.

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