KR100883027B1 - Apparatus for collecting waste solder paste - Google Patents

Abstract

An apparatus for collecting waste solder paste is provided to be improved in order to prevent environmental contamination generating during a process step by extracting are separating flux and glass or plastic containers occupying about 10% of total amount of the waste solder paste using a non-combustion method. An apparatus for collecting waste solder paste contains: a furnace(10) having a casing(12) forming a first space(15a) mounting a first heating unit(17a) and a second space(15b) mounting a second heating unit(17b) continuously; a container transport unit including a conveyer belt(42) passing through an inside of the casing of the furnace to a traverse direction and a drive motor(44) rotating the conveyer belt at crawler-type having a container seating groove and transferring the containers inside the furnace; and a melting furnace(60) located in a bottom of a hopper of the furnace, having a housing containing metal material and flux dropped from the container, including a third heating unit for specific gravity-separating the metal material and the flux and comprising a metal material telecommunications outlet(66a) and a flux telecommunications outlet(66b).

Description

Apparatus For Collecting Waste Solder Paste

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for fractionating and recovering metal materials and fluxes from waste lead-free cream solder that remains during an electrical and electronic process. More particularly, the present invention recovers and recycles the entire amount of the metal composition in the lead-free solder paste in a state of high quality. It can be, and relates to an improved waste solder paste recovery apparatus to minimize the problems of environmental pollution generated during the recovery process.

At present, IC packaging is rapidly becoming highly integrated through miniaturization and thinning, and in the case of lead-free cream solder (hereinafter referred to as 'solder paste'), high-priced / high-quality products such as Sn, Ag, Cu, Ni, and In The main ingredient is.

The remaining solder paste during the soldering process of the electronic warfare industry is a mixture of metal material and flux, and is composed of about 90% of expensive metal materials such as Sn and Ag and about 10% of flux.

In the case of the solder paste recovered after being used in the above-described electronic and electrical processes, as shown in FIG. 10, the solder paste is returned to the container 100 after the soldering operation or recovered in a state left behind after use. ) Is left. Most of these waste solder pastes 110 are subject to disposal for a considerable amount of approximately 30% to 80%, depending on the amount used relative to the total weight contained in the container 100 at the beginning of the product.

The necessity of recovering the metal material from the waste solder paste 110 is that the waste solder paste is discarded at a maximum of 80% as described above, and the quantity itself is also used in the future IC packaging process. As rapid expansion is expected, the recovery of waste solder paste is also expected to increase significantly, which is increasing.

In the case of the waste solder paste 110 recovered as described above, as shown in FIG. 10, the lid 105 on the left side is mostly made of a thermoplastic material, and the container 100 on the right side is a kind or manufacture of solder paste. According to the company, it is composed of two materials, transparent plastic and glass. The waste solder paste 110 may be treated by injecting the waste solder paste 110 contained in the container 100, which is a conventional recycling method, into the melting furnace 60 to burn the combustibles, and then the remaining metal may be removed. There is a way to take it.

Such treatment method is often caused by the combustion of flux or plastic container, as well as the waste solder paste 110 is often contained in the plastic container 100, in this case the risk of pollution is known to be greater Therefore, it can be seen that such a conventional method is difficult to use in the future.

In addition, in the conventional treatment method, various types of waste solder pastes 110 are burned and melted together, and all of them are burned together without being distinguished by alloy composition. That is, since the waste solder paste 110 remaining in the plastic or glass container 100 is heated to a high temperature by heating the entire container 100 to burn combustion products such as a flux and a plastic container, as well as environmental pollution by combustion of the flux and the plastic container, Due to oxidation and contamination of some solder metal materials by oxidation of various combustion materials at high temperatures, recovery of high quality solder metal materials is impossible and recovery to low quality products is inevitable.

Therefore, the conventional metal material recovered by such a conventional method is used as a low-grade solder raw material, or used for other purposes of low-cost products, in particular, the elements of air pollution due to the combustion of flux and plastic containers always exist, The regeneration process by the technology itself is not allowed.

The present invention is to solve the conventional problems as described above, the object is

The present invention provides a waste solder paste recovery apparatus which is capable of recovering all of the metal materials, which occupy about 90% of the total amount of waste solder paste, in a state of high quality maintained at about the same level as the original composition, and recycling them to high quality materials.

In another aspect, the present invention is to recover the waste solder paste to improve the environmental pollution that may occur during the process by extracting and separating the flux and glass or plastic containers, which occupy about 10% of the total amount of waste solder paste by non-combustion method In providing a device.

Another object of the present invention is to provide an improved waste solder paste recovery apparatus for recycling the expensive resources by completely reusing the glass container and reusing the plastic material as a reuse material.

In order to achieve the above object, the present invention, in the device for separating and recovering the metal material and flux from the waste solder paste,

A hollow first space and a second space are formed in the casing, and a first heating means is mounted in the first space, and a second heating means is mounted in the second space. On the lower side of the two spaces, a heating furnace in which first and second hoppers are formed;

A conveyor belt passing transversely through the casing of the heating furnace, a drive motor for rotating the conveyor belt in a caterpillar shape, wherein the conveyor belt is equipped with a plurality of containers containing waste solder paste. A container conveying unit formed with a seating groove to convey the containers into the heating furnace; And

Located in the hopper lower portion of the heating furnace each having a housing containing the metal material and flux dropped from the container, and a third heating means for maintaining the metal material and the flux at a constant temperature, the specific gravity of the metal material and flux Separation, the housing provides a waste solder paste recovery apparatus comprising a; melting furnace formed with a metal material outlet and a flux outlet.

And the present invention preferably provides a waste solder paste recovery device, characterized in that the exhaust duct is located at the front inlet and rear outlet side of the casing to discharge the gas discharged from the furnace to the outside.

The invention also preferably provides that the first space is heated to a temperature at which the solvent is vaporized without burning by the first heating means, and the second space is heated by the second heating means without burning the flux or plastic vessel from the vessel. Provided is a waste solder paste recovery device, characterized in that the metal material and flux is melted and heated to a temperature falling to the bottom.

And the present invention preferably provides a waste solder paste recovery apparatus, characterized in that the first space is heated to 150 ℃ or less, the second space is heated to a temperature of 220 ℃ to 330 ℃.

In addition, the present invention preferably comprises a plurality of rotating shafts each having a sprocket on both sides rotated by a drive motor, the sprocket is caught in the chain provided on both sides of the conveyor belt to rotate in an infinite track The upper side of the conveyor belt moves horizontally in the heating furnace, and the lower side provides a waste solder paste recovery device, which moves to the lower side of the heating furnace.

And the present invention is preferably the container conveying portion is formed in a hole in the container seating groove, the hole is formed smaller than the outer diameter of the container from the container placed upside down in the container seating groove metal material and flux downward through the hole Provided is a waste solder paste recovery device, characterized in that falling.

In another aspect, the present invention preferably provides a plurality of melting furnace is disposed on the lower side of the furnace, each of the inlet is arranged to match the lower end of the hopper of the furnace, respectively. .

And the present invention is preferably the waste solder paste recovery apparatus, characterized in that the inner space of the housing is maintained at a temperature at which the specific gravity separation of the metal material and the flux is carried out without burning the flux or plastic container by the third heating means. To provide.

In another aspect, the present invention preferably provides a waste solder paste recovery apparatus, characterized in that the housing is heated to a temperature of 180 ℃ to 250 ℃ by a third heating means.

In another aspect, the present invention preferably provides a waste solder paste recovery apparatus, characterized in that the first, second and third heating means is made of an electrical resistance heating coil.

In another aspect, the present invention preferably provides a waste solder paste recovery apparatus, characterized in that the metal material recovery tank is disposed on the outlet of the metal material outlet of the melting furnace.

And the present invention preferably provides a waste solder paste recovery apparatus characterized in that the metal material ingot forming mold is disposed in the outlet of the metal material recovery tank to recover the metal material in the form of ingot.

In another aspect, the present invention preferably provides a waste solder paste recovery apparatus, characterized in that the flux recovery tank is disposed on the flux outlet outlet side of the melting furnace.

And the present invention preferably provides a waste solder paste recovery apparatus characterized in that the inclined table for recovering the container is disposed at the rear exit side of the heating furnace to contain the container in the container while buffering the impact.

According to the present invention as described above, after completely removing the solvent remaining by the primary heating, the waste solder paste solidified by the second heating is completely extracted in the container, and then again heated to the third to heat flux and metal By using the melting temperature difference and the specific gravity difference of the material, the metal material and the flux in the solder paste are separated and processed at a temperature where chemical reaction such as combustion does not occur, and the production of high quality recycled products is possible while maintaining the quality of the metal material. Therefore, to prevent the use of low-grade materials due to the deterioration of the metal material appearing in the case of the conventional method is utilized as a high value-added lead-free solder has an excellent effect of being recycled as a high quality product raw material.

In addition, according to the present invention, the flux and glass or plastic containers, which account for about 10% of the total amount of the waste solder paste, are extracted and separated by non-combustion to obtain an improved effect of preventing environmental pollution that may occur during the process.

In addition, according to the present invention, when the waste solder paste is contained in a glass container, it can be completely recycled, and in the case of plastic, it can be re-dissolved and used as a reusable raw material, so that an improved effect can be obtained to recycle expensive resources. .

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

The waste solder paste recovery apparatus 1 according to the present invention is an apparatus for separating and recovering a metal material and flux from the waste solder paste 110.

In the waste solder paste recovery apparatus 1 according to the present invention, as shown in FIGS. 1 to 3 as a whole, a casing 12 in which a hollow first space 15a and a second space 15b are connected in series is formed. It includes a heating furnace 10 having.

The heating furnace 10 is equipped with a first heating means 17a in the first space 15a, a second heating means 17b in the second space 15b, and the first space 15a. ) And a second hopper 20a (20b) are formed on the lower side of the second space (15b).

In the heating furnace 10, exhaust ducts 25a and 25b are positioned at the front inlet 22a and the rear outlet 22b of the casing 12 to discharge the gas discharged from the heating furnace 10 to the outside. It is structure to let. The exhaust ducts 25a and 25b collect the gas discharged from the heating furnace 10 and, if necessary, treat it as a harmless gas through chemical treatment and discharge it to the outside. To this end, the exhaust ducts 25a and 25b are provided with exhaust fans (not shown).

In addition, in the present invention, the first space 15a of the heating furnace 10 is heated to a temperature at which the solvent is vaporized without burning by the first heating means 17a, and preferably the first space 15a is Heated to 150 ° C or less. In addition, the second space 15b is heated to a temperature at which the metal material and the flux are melted and dropped downward from the vessel 100 without the combustion of the flux or the plastic vessel by the second heating means 17b. The second space 15b is heated to a temperature of 220 ° C to 330 ° C. Here, the first and second heating means 17a and 17b may be preferably made of an electrically resistive heating coil.

In addition, the heating furnace 10 has a ramp 30 for recovering the container 100 at the rear outlet 22b side thereof, so that the metal material and the flux inside the heating furnace 10 as described later. If the container 100 is removed is discharged to the outside through the outlet (22b) of the heating furnace 10, it is a structure that can contain the container 100 in the collection box 32 while buffering the impact.

In addition, the present invention includes a container transfer part 40 for transferring the containers 100 into the heating furnace 10. As shown in FIG. 3, the container transfer part 40 includes a conveyor belt 42 passing through the inside of the casing 12 of the heating furnace 10 in a transverse direction, and the conveyor belt 42 is infinite. The drive motor 44 which rotates to track type is provided. In addition, the conveyor belt 42 has a structure in which a container seating groove 48 in which a plurality of containers 100 containing waste solder paste 110 are mounted is formed.

In addition, the container transfer part 40 includes a plurality of rotation shafts 52 having sprockets 50 respectively on both sides rotated by the drive motor 44, and the sprocket 50 is illustrated in FIG. 4. As described above, the chains 42a provided on both sides of the conveyor belt 42 are caught and rotated in an endless track shape. The upper side of the conveyor belt 42 moves horizontally inside the heating furnace 10, and the lower side It is a structure that is moved to the lower portion of the heating furnace (10).

In addition, the container transfer part 40 has both ends of the plurality of plate members 46 connected to the chain 42a so that the conveyor belt 42 can rotate in an endless track shape. The container seating groove 48 is formed, and a hole 48a is formed in the center thereof. In addition, the hole 48a may be formed to be smaller than the outer diameter of the container 100 containing the waste solder paste 110 so that the container 100 may be inverted in the container seating groove 48, and thus, the container 100 may be inverted. The metal material and flux fall down through the hole 48a.

Meanwhile, the melting furnace 60 has a melting furnace 60 which is located under each of the hoppers 20a and 20b of the heating furnace 10 to contain the metal material and the flux dropped from the container 100, and the melting furnace 60 is hollow. A housing 62 having a third heating means 64 for maintaining the metal material and the flux at a constant temperature therein, and heat dissolving the metal material and the flux to separate specific gravity. The metal material outlet 66a and the flux outlet 66b are formed.

And a plurality of melting furnaces 60 as described above are disposed in the lower side of the heating furnace 10, each of which has an inlet is arranged to match the lower end of the hopper 20a (20b) of the heating furnace 10, respectively to be. Therefore, the metal material and the flux discharged from the hoppers 20a and 20b of the heating furnace 10 are introduced into the melting furnace 60 through the hoppers 20a and 20b.

In addition, the melting furnace 60 is a structure in which the inner space of the housing 62 is heated at a temperature at which the specific gravity of the metal material and the flux is separated by heating without burning the flux or the plastic container by the third heating means 64. That is, as shown in FIG. 5, the housing 62 is heated to a temperature of 180 ° C. to 250 ° C. by the third heating means 64 so that the specific gravity separation of the metal material and the flux in the housing 62 is natural. Is done. Here, the third heating means 64 may be preferably made of an electrical resistance heating coil.

6, the metal material recovery tank 70 is disposed at the outlet of the metal material outlet 66a of the melting furnace 60, and the outlet of the metal material recovery tank 70 is disposed. 72, as shown in FIG. 7, a metal material ingot forming mold 76 is disposed so that the metal material is solidified in an ingot form and recovered in the form of an ingot 78 as shown in FIG. .

Meanwhile, in the present invention, a flux recovery tank 80 is disposed at the outlet side of the flux outlet 66b of the melting furnace 60 to recover the flotation separated from the melting furnace 60.

The waste solder paste recovery apparatus 1 according to the present invention configured as described above first heats the waste solder paste 110 that enters the heating furnace 10 to completely remove the solvent remaining therein, and then performs the second heating. The waste solder paste 110, which is solidified, is dissolved and dropped from the container 100 to the bottom to be completely extracted.

Then, by heating it again in the melting furnace 60, the specific gravity of the metal material and the flux in the waste solder paste 110 at a temperature at which chemical reaction such as combustion hardly occurs using the melting temperature difference and the specific gravity difference between the flux and the metal material. Separation process maintains the quality of the metal material as it is, and prevents the air pollution due to the non-combustion of the flux to make the change of the recovered flux components to occur small, it is possible to produce a high-quality recycled product.

First, in order to use the waste solder paste recovery apparatus 1 of the present invention, technical information regarding the solder paste is collected, which is based on the oxidative properties of the respective composition metals related to the metal material which accounts for about 90% of the waste solder paste 110. The process of selecting the optimum atmosphere and temperature of metal melting according to the type of waste solder paste 110 through the collection of thermodynamic data and the rosin (which is currently used as flux to analyze the characteristics of each raw material related to the type of flux) Basic data on dissolution and oxidation of all components such as natural resins and synthetic resins for rosin, and activators such as solvent, amine or organic acid, etc. should be thoroughly reviewed and sorted by type.

Then, by using the waste solder paste recovery device 1 according to the present invention to recover the metal material and flux from the waste solder paste 110 classified by type, if the separated collection step of the waste solder paste 110 is subdivided As a first step, the preheating operation for complete removal of the solvent is performed within about 150 ° C. by setting the heating temperature and the holding time related to the heating.

That is, as shown in FIG. 3, the containers 100 containing waste solder paste 110 are respectively placed on the container seating grooves 48 of the conveyor belt 42 at the front inlet 22a side of the heating furnace 10. Place it upside down to enter the interior of the heating (10).

In this case, the waste solder paste 110 maintained at room temperature is maintained in a stable state in the container 100 due to its viscosity, and rotates indefinitely by the operation of the drive motor 44 of the container transfer part 40. It enters into the inside of the heating furnace 10 via the orbital conveyor belt 42.

In the interior of the heating furnace 10, the first heating means 17a is heated to within 150 ° C by entering the first space 15a disposed adjacent to the inlet 22a side, and closed in the process of moving for a predetermined time. The solvent in the solder paste 110 is vaporized. In this case, the solvent is vaporized without burning in the first space 15a, thereby eliminating the cause of combustion ignition in a subsequent process, and minimizing environmental pollution through non-combustion.

Meanwhile, in the case of the waste solder paste 110 processed by the waste solder paste recovery device 1 according to the present invention, the waste solder paste 110 is composed of a metal material and a flux, and the flux is a rosin (the main component added to improve the wettability of the metal material). It contains solvents and activators to keep the properties of rosin and paste intact so that they can be easily used. Therefore, when heated to a temperature within 150 ° C. as described above, rosin is once fluid Flows while the solvent is vaporized.

In this process, when the solvent component is burned, there is a high probability of air pollution. Therefore, care must be taken to set the set temperature such that the solvent is not burned in setting the primary heating temperature.

In addition, during the second heating, the remaining components except for the solvent are dissolved so as to fall down from the container 100 to be completely extracted. That is, the container 100 containing the waste solder paste 110 from which the solvent has been removed gradually moves toward the second space 15b disposed successively in the first space 15a by the operation of the drive motor 44 of the container transfer part 40. Moving, and a second stage of heating takes place. This is because the second space 15b of the heating furnace 10 is maintained by the second heating means 17b at an internal temperature in the temperature range of 220 ° C. to 330 ° C., so that the container 100 After passing through for 5 to 30 minutes, the waste solder paste 110 is heated, and the metal material and the flux are melted together and separated from the container 100 by a natural drop without the combustion of the flux or the plastic container, and the lower hopper It falls to the (20a) (20b) side.

In this process, the glass container 100 or the plastic container containing the flux and the waste solder paste 110 does not reach the combustion temperature and thus does not burn, and only remains in a molten state to lower the viscosity, and consequently the container. It naturally falls during the transfer of the container 100 from the hole 48a of the container seating groove 48 from 100.

The waste solder paste 110 dropped as described above flows into the melting furnace 60 through the hoppers 20a and 20b below the heating furnace 10, and the specific gravity difference between the metal material and the flux in the melting furnace 60 is different. The layers are separated by the flux and the metal material component.

Meanwhile, in the melting furnace 60, the fluxes attached and adsorbed at the interface between the flux and the metal material and the interface between the housing 62 are vaporized within 180 ° C to 250 ° C, and then condensed again. By recovering the waste, it is possible to reduce the degeneration of the recovered flux component while preventing the air pollution caused by the unburning of the flux. That is, in the third stage of heating, the remaining flux, which is attached to the interface and the container 100 which contact the metal material, which is the main component, which accounts for 90% of the weight of the solder paste, remains in the melting furnace 60, the third heating means 64. ) Is kept in the molten state for 5-10 minutes within the temperature range of 180 ℃ to 250 ℃ by fractional collection using the difference in specific gravity of the flux and the metal material.

Therefore, according to the present invention, it is possible to prevent the use of low-grade materials due to the deterioration of the metal material appearing in the conventional manner and to be used as a high value-added lead-free solder metal material can be recycled as a high quality product raw material.

In addition, in the conventional method, the effect of preventing environmental pollution is obtained in order to prevent the emission of various environmental pollutants generated during the combustion of flux and plastic materials.

Meanwhile, as described above, the containers 100 from which the waste solder paste 110 has been removed exit the heating furnace 10 while passing through the second space 15b, which is a slope 30 as shown in FIG. 9. Is collected in the container collection (32) through.

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to such a specific structure. Those skilled in the art will be able to variously modify or change the embodiments of the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. For example, in the above description, although the electric resistance heating coil has been described as using the first, second, and third heating means, the present invention is not limited thereto, and a gas burner for burning gaseous fuel or an equivalent heating effect thereof. Other mechanisms can be obtained. Nevertheless, it will be apparent that modifications or design changes or replacement structures of such simple embodiments are all clearly within the scope of the present invention.

1 is a perspective view showing a waste solder paste recovery apparatus according to the present invention;

2 is a front view showing a waste solder paste recovery apparatus according to the present invention;

3 is a cross-sectional view for explaining the operation of the waste solder paste recovery apparatus according to the present invention;

Figure 4 is a detailed view showing the conveyor belt of the container transfer unit provided in the waste solder paste recovery apparatus according to the present invention;

5 is a cross-sectional view showing a melting furnace provided in the waste solder paste recovery apparatus according to the present invention;

6 is an explanatory view showing a structure in which a metal material is discharged from a melting furnace provided in a waste solder paste recovery device according to the present invention;

7 is an explanatory view showing a structure in which a metal material is recovered in an ingot form from a melting furnace provided in a waste solder paste recovery device according to the present invention;

8 is an explanatory view showing an ingot form metal material obtained from a waste solder paste recovery device according to the present invention;

9 is a perspective view showing a ramp of the furnace exit provided in the waste solder paste recovery apparatus according to the present invention;

10 is a perspective view showing a container containing waste solder paste.

<Description of the symbols for the main parts of the drawings>

1 ..... Waste Solder Paste Recovery System 10 .... Furnace

12 .... Casing 15a .... 1st space

17a ... first heating means 15b .... second space

17b ... second heating means 22a .... inlet

22b .... Exit 30 .... Slope

40 .... container transfer 42 .... conveyor belt

44 .... drive motor 50 .... sprocket

52 .... rotary shaft 60 .... melting furnace

62 .... Housing 64 .... Third heating means

66a ... metallic material outlet 66b .... flux outlet

70 .. Metal recovery tank 72 .... Outlet

76 .... metal material ingot forming mold 78 .... ingot

100 .... Canister 105 .... Lid

110 .... waste solder paste

Claims (14)

In the apparatus for separating and recovering the metal material and flux from the waste solder paste, A hollow first space and a second space are formed in the casing, and a first heating means is mounted in the first space, and a second heating means is mounted in the second space. On the lower side of the two spaces, a heating furnace in which first and second hoppers are formed; A conveyor belt passing transversely through the casing of the heating furnace, a drive motor for rotating the conveyor belt in a caterpillar shape, wherein the conveyor belt is equipped with a plurality of containers containing waste solder paste. A container conveying unit formed with a seating groove to convey the containers into the heating furnace; And Located in the hopper lower portion of the heating furnace each having a housing containing the metal material and flux dropped from the container, and a third heating means for maintaining the metal material and the flux at a constant temperature, the specific gravity of the metal material and flux Separating and, the housing comprises a melting furnace having a metal material outlet and a flux outlet, the waste solder paste recovery apparatus comprising a. The waste solder paste recovery apparatus of claim 1, wherein an exhaust duct is disposed at a front inlet and a rear outlet of the casing to exhaust the gas discharged from the furnace to the outside. The method of claim 1, wherein the first space is heated to a temperature at which the solvent is evaporated without burning by the first heating means, and the second space is free of combustion of the flux or plastic container from the vessel by the second heating means. The waste solder paste recovery device, characterized in that the material and the flux is melted and heated to a temperature falling to the bottom. The waste solder paste recovery apparatus of claim 3, wherein the first space is heated to 150 ° C. or less, and the second space is heated to a temperature of 220 ° C. to 330 ° C. 5. According to claim 1, wherein the container transfer unit comprises a plurality of rotation shafts each having a sprocket on both sides rotated by a drive motor, the sprocket is caught in chains provided on both sides of the conveyor belt to rotate in an infinite track And the upper side of the conveyor belt moves horizontally inside the heating furnace, and the lower side moves to the lower side of the heating furnace. 6. The container delivery portion of claim 5, wherein the container transfer portion has a hole formed in the container seating groove, and the hole is formed smaller than the outer diameter of the container so that metal material and flux fall downward through the hole from the container placed upside down in the container seating groove. Waste solder paste recovery apparatus, characterized in that. The waste solder paste recovery apparatus according to claim 1, wherein a plurality of melting furnaces are disposed at a lower side of the heating furnace, and each of the melting furnaces is disposed to coincide with a lower end of a hopper of the heating furnace. The waste solder paste recovery apparatus according to claim 7, wherein the melting furnace maintains the internal space of the housing at a temperature at which the specific gravity separation of the metal material and the flux is performed without burning the flux or the plastic container by the third heating means. The waste solder paste recovery apparatus according to claim 8, wherein the housing is heated to a temperature of 180 ° C to 250 ° C by a third heating means. The waste solder paste recovery apparatus of claim 1, wherein the first, second, and third heating means comprise an electrically resistive heating coil. The waste solder paste recovery apparatus according to claim 1, wherein a metal material recovery tank is disposed at the outlet of the metal material outlet of the melting furnace. 12. The apparatus of claim 11, wherein a metal material ingot forming mold is disposed at an outlet of the metal material recovery tank to recover the metal material in an ingot form. The waste solder paste recovery apparatus according to claim 1, wherein a flux recovery tank is disposed at a flux outlet port of the melting furnace. The waste solder paste recovery apparatus according to claim 2, wherein an inclination table for recovering the container is disposed at the rear outlet side of the heating furnace to contain the container in the container while cushioning the impact.

Images