KR102250882B1 - Method for manufacturing recycling goods using soild wastes - Google Patents

Abstract

The present invention relates to a manufacturing apparatus and a manufacturing method for recycling solid waste using brown gas and a heater. The apparatus for manufacturing a product recycled from solid waste includes: i) a lower casing having an upper side having a first opening portion; ii) an upper casing having a lower side having a second opening portion communicating with the first opening portion and attachable to and detachable from the lower casing; iii) a crucible applied so as to accommodate solid waste; iv) a gas burner vertically penetrating the upper casing, inserted into the upper casing, and applied so as to supply brown gas directly melting a raw material from above the raw material; v) a heater positioned in the first opening portion, positioned apart from the crucible, surrounding the side surface of the crucible, and applied so as to indirectly melt the solid waste; and vi) a hinge horizontally installed on one side surface of the lower casing and applied so as to tilt the lower casing.

Description

Method for manufacturing recycled products from solid waste {METHOD FOR MANUFACTURING RECYCLING GOODS USING SOILD WASTES}

The present invention relates to a method of manufacturing a recycled product of solid waste. More specifically, it relates to a method of manufacturing a recycled product obtained by melting solid waste in a hybrid form using brown gas and a heater together.

Due to the rapid industrial development, household waste, industrial waste, and agricultural and fishing village waste are generated in large quantities. Typically, these solid wastes are landfilled. However, landfill is also limited, so these solid wastes are sometimes removed by incineration. To this end, incineration plants for incineration of solid waste are continually being built.

When such solid waste is burned, incineration ash from incinerators, such as bottom ash or fly ash, and solid designated wastes contain large amounts of dioxin or hazardous heavy metals. Landfill treatment of incineration ash and designated solid waste generates secondary environmental pollution and fine dust from landfill. Furthermore, since the landfill is saturated, the land cannot be used efficiently, and civil complaints, costs, and time required for the construction of a new landfill are required. In addition, since non-combustible solid waste cannot be incinerated, separate treatment is required.

Registered Patent No. 1,214,575

We intend to provide a recyclable product manufacturing device that can produce and recycle concrete aggregate (KSF 2527), cover material, road base material, glass wool raw material, mineral wool raw material, etc. by melting and treating solid waste by using brown gas and heater together. In addition, it is intended to provide a recycling product manufacturing method using a recycling product manufacturing apparatus.

In the apparatus for manufacturing a recycled product of solid waste according to an embodiment of the present invention, i) a lower casing having a first opening formed at the upper side, ii) a second opening communicating with the first opening is formed at the lower side, and detachable from the lower casing. An upper casing, iii) a crucible adapted to receive solid waste, iv) a gas burner adapted to supply brown gas which penetrates the upper casing in a vertical direction and is inserted into the interior of the upper casing to directly melt the raw material from the top of the raw material, and v ) It is located in the first opening and spaced apart from the crucible, and includes a heater applied to indirectly melt solid waste by surrounding the side of the crucible. The gas burner can be applied so that the gas discharged from the gas burner is sprayed toward the solid waste and directly contacts the solid waste. The heater is a silicon carbide heater, a medium frequency heater, or a high frequency heater, and the heater can be melted by heating the side of the solid waste in a non-contact manner.

The apparatus for manufacturing a recycled product of solid waste according to an embodiment of the present invention may further include a heat insulator disposed on the opposite side of the crucible to form a first opening and to have a heater interposed therebetween. The heater may include i) a plurality of first heater units extending in a first direction parallel to the horizontal direction, and ii) a plurality of second heater units extending in a second direction perpendicular to the plurality of first heater units. have. At least one pair of first heater parts among the plurality of first heater parts may be spaced apart from each other and may be positioned with a crucible therebetween. At least one pair of second heater parts among the plurality of second heater parts may be spaced apart from each other and may be positioned with a crucible therebetween. At least one pair of first heater units and at least one pair of second heater units may be positioned to be spaced apart from each other while alternating with each other along a vertical direction. At least one pair of first heater parts among the plurality of first heater parts and the plurality of second heater parts may be located on the top.

The apparatus for manufacturing a recycled product of solid waste according to an embodiment of the present invention includes i) a solid waste hopper that is spaced apart from each other in a horizontal direction and faces the upper casing, and ii) penetrates the upper casing in a horizontal direction. It may further include a through hole in communication with the second opening, and iii) a horizontal transfer part applied to be inserted into the through hole by moving in a horizontal direction under the solid waste hopper. The horizontal transfer unit may be applied to transfer the solid waste dropped from the solid waste hopper in a horizontal direction and supply it to the crucible through the second opening. The horizontal transfer unit includes a plurality of screws that transfer the solid waste to the upper casing by rotation, and the diameter of the plurality of screws decreases as they get closer to the upper casing, and compresses the transferred solid waste to reduce moisture contained in the solid waste. It can be applied to discharge downwards.

The apparatus for manufacturing a recycled product of solid waste according to an embodiment of the present invention includes i) a hinge installed horizontally on one side of the lower casing and applied to tilt the lower casing, ii) a swash plate for obliquely dropping the molten solid waste, iii ) A cooling nozzle located on the swash plate and spraying cooling water into the molten metal of solid waste to cool the molten metal and converting the molten metal into recycled products, and iv) located under the swash plate, and a belt is installed inside the swash plate to store the recycled products provided through the It may further include a conveyor that is transported to the outside by operating.

The method of manufacturing a recycled product of solid waste according to an embodiment of the present invention includes the steps of: i) providing a lower casing having a first opening formed at an upper side and having a crucible and a heater surrounding the crucible installed at the first opening, ii) 1 A second opening communicating with the opening is formed on the lower side and providing a detachable upper casing with the lower casing, iii) raising the lower casing toward the upper casing to make the upper casing and the lower casing in close contact with each other, iv) the upper part Injecting solid waste containing silicon into the crucible through a raw material input port passing through the casing, v) indirect heating and melting of the solid waste by heating the side of the crucible with a heater, vi) a second opening through the upper casing Supplying gas through a gas burner inserted into the furnace, and vii) igniting the gas and injecting the gas toward the solid waste to directly heat and melt the solid waste.

The step of directly heating and melting the solid waste comprises: i) raising the gas burner upward and adding another solid waste to the crucible, and ii) heating and melting another solid waste with a gas burner. can do. The method of manufacturing a recycled product of solid waste according to an embodiment of the present invention may further include indirect heating and melting of another solid waste by a heater while directly heating and melting another solid waste by gas.

The method for manufacturing a recycled product of solid waste according to an embodiment of the present invention includes: i) lowering the lower casing to separate it from the upper casing, ii) horizontally moving the lower casing in the first direction, and iii) the lower casing. It may further include the step of discharging the molten metal of solid waste to the outside by tilting the lower casing about the hinge installed extending in a direction crossing the first direction on one side. The method for manufacturing a recycled product of solid waste according to an embodiment of the present invention further comprises: i) discharging the molten metal to an inclined surface, and ii) converting the molten metal into recycled products by spraying cooling water into the molten metal from a cooling nozzle installed on the inclined surface. Can include.

The side portion of the melting furnace crucible, which is difficult to transfer heat, is heated with a heater, and the central portion of the melting furnace crucible is heated with brown gas, so that incineration ash or solid waste can be uniformly and quickly melted. As a result, energy and time for manufacturing recycled products can be significantly reduced. As a result, it is possible to uniformly manufacture high-quality recycled products that can be used as construction materials or civil engineering materials. In particular, it is possible to significantly reduce the size of the melting furnace by increasing the efficiency of heat transfer. As a result, the manufacturing cost of the melting furnace can be greatly reduced.

1 is a schematic diagram of an apparatus for manufacturing recycled products according to a first embodiment of the present invention.
2 is a schematic perspective view of a heater included in the recycling product manufacturing apparatus of FIG. 1.
3A is a view showing the temperature profile of the molten metal in the apparatus for manufacturing recycled products of FIG. 1, and FIG. 3B is a view showing the temperature profile of the molten metal in the melting apparatus according to the prior art.
4 is a schematic flowchart of a method of manufacturing a recycled product using the recycling product manufacturing apparatus of FIG. 1.
5 to 7 are views schematically showing each step of the method of manufacturing a recycled product of FIG. 4.
8 is a schematic diagram of a recyclable product manufacturing apparatus according to a second embodiment of the present invention.

When a part is referred to as being “on top of” another part, it may be directly on top of another part, or other parts may be involved in between. In contrast, when a part is referred to as being "directly above" another part, no other part is involved in between.

Terms such as first, second and third are used to describe various parts, components, regions, layers and/or sections, but are not limited thereto. These terms are only used to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, a first part, component, region, layer or section described below may be referred to as a second part, component, region, layer or section without departing from the scope of the present invention.

The terminology used herein is only for referring to specific embodiments and is not intended to limit the present invention. Singular forms as used herein also include plural forms unless the phrases clearly indicate the opposite. The meaning of “comprising” as used in the specification specifies a specific characteristic, region, integer, step, action, element and/or component, and the presence or presence of another characteristic, region, integer, step, action, element and/or component It does not exclude additions.

Terms indicating a relative space such as “below” and “above” may be used to more easily describe the relationship between one part and another part shown in the drawings. These terms are intended to include other meanings or operations of the device in use together with their intended meaning in the drawings. For example, if the device in the drawing is turned over, certain parts described as being "below" other parts are described as being "above" other parts. Thus, the exemplary term “down” includes both up and down directions. The device can be rotated by 90 degrees or other angles, and terms that refer to relative space are interpreted accordingly.

Although not defined differently, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms defined in a commonly used dictionary are additionally interpreted as having a meaning consistent with the related technical literature and the presently disclosed content, and are not interpreted in an ideal or very formal meaning unless defined.

The embodiments of the present invention described with reference to the cross-sectional structure specifically represent an ideal embodiment of the present invention. As a result, various variations of the illustration are expected, for example variations in manufacturing methods and/or specifications. Accordingly, the embodiment is not limited to a specific shape of the illustrated area, and includes, for example, a modification of the shape by manufacturing. For example, an area shown or described as being flat may have characteristics that are generally rough, rough, and non-linear. Also, portions shown as having a sharp angle can be rounded. Accordingly, the areas shown in the drawings are originally only approximate, and their shapes are not intended to show the exact shape of the area, and are not intended to narrow the scope of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein.

1 schematically shows an apparatus 100 for manufacturing a recycled product according to a first embodiment of the present invention. The structure of the recycled product manufacturing apparatus 100 of FIG. 1 is for illustrative purposes only, and the present invention is not limited thereto. Therefore, the structure of the recycling product manufacturing apparatus can be transformed into other forms.

The recycled product manufacturing apparatus 100 is a melting facility of a fusion method. That is, in the recyclable product manufacturing apparatus 100, the gas burner 60 and the heater 40 are used together to melt solid waste including incineration ash to manufacture a recycled product, for example, a civil engineering material or a building material. Here, the solid waste is incineration ash, tailings, mineral wool, glass wool, asbestos, and the like, and civil or building materials are road base materials, concrete aggregates, raw materials for interlocking bricks, glass wool. Raw materials, mineral wool materials, etc.

The reason for using the gas burner 60 and the heater 40 at the same time in the recycling product manufacturing apparatus 100 is due to the characteristics of the solid waste that is the object to be melted. That is, the part of the solid waste that is in contact with the flame of the hot brown gas melts well. However, solid waste contains a large amount of silicon (Si), and silicon, unlike metals, has very slow heat transfer. The solid waste contains, for example, 40% to 60% by weight of silicon. Therefore, even if the upper center of the solid waste is melted with brown gas, the heat is not well transferred to the side of the solid waste due to the large amount of silicon contained in the solid waste. That is, a lot of time and energy are required to melt the solid waste to the side of the solid waste using only brown gas.

As shown in FIG. 1, the recycling product manufacturing apparatus 100 includes a lower casing 10, an upper casing 20, a crucible 30, a heater 40, a hydraulic shaft 50, a gas burner 60, and a heat insulating material. (15, 17), an exhaust pipe (80), and a solid waste hopper (90). In addition, the recycled product manufacturing apparatus 100 may further include other parts.

An opening 101 is formed on the upper side of the lower casing 10. The lower surface and the side surface of the lower casing 10 are blocked by a metal cover or the like, while the upper side thereof is opened through the opening 101 so as to communicate with the upper casing 20 and communicate with each other.

In order to block the heat radiated when the solid waste contained in the crucible 30 is melted to become a molten metal, an insulating material 15 is installed in the lower casing 10. For the same reason, an insulating material 17 is also installed on the inner surface of the upper casing 20.

As shown in FIG. 1, an opening 201 is formed under the upper casing 20. The upper surface and the side surface of the upper casing 20 are blocked by a metal cover or the like, while the lower side thereof is opened through the opening 201 so as to communicate with the lower casing 10 and communicate with each other. The upper casing 20 may be combined with or separated from the lower casing 10 because the lower casing 10 is raised or lowered by the hydraulic shaft 50. The upper casing 20 may be placed on the lower casing 10 and maintained in a coupled state by its weight, but after being aligned with each other, the upper casing 20 may be coupled to each other using a separate coupling member.

The crucible 30 is located in the opening 101 to melt the solid waste contained therein. The crucible 30 is manufactured using a silicon carbide (SiC) material to withstand high temperatures of 1600°C or higher.

Meanwhile, as shown in FIG. 1, the hydraulic shaft 50 is composed of four screw jacks with a lower casing 10 interposed therebetween in the x-axis direction and the y-axis direction, respectively. By the hydraulic shaft 50, the lower casing 10 moves in the ±z-axis direction, that is, up and down. The hydraulic shaft 50 is located on the left and right, respectively. Accordingly, the hydraulic shaft 50 on the right side may be extended longer than the hydraulic shaft 50 on the left side and used for tilting the lower casing 10 using the hinge 55 as an axis. Although not shown in FIG. 1 for convenience, the upper casing 20 is separately fixed by the cradle 25 (shown in FIG. 5), so that even if the lower casing 10 is removed from the upper casing 20, its position is stably maintained. do. Since the lifting movement of the hydraulic shaft 50 itself is performed in a fixed state, the crucible 30 rises or descends stably.

The gas burner 60 is inserted into the upper casing 20, that is, into the opening 201. The gas burner 60 extends on the crucible 30 in a vertical direction, that is, along the z-axis direction, and is positioned toward the crucible 30. Accordingly, the gas discharged from the gas burner 60 is ignited and injected toward the solid waste W accommodated in the crucible 30. The gas is in direct contact with the solid waste (W) to melt the solid waste (W). The gas burner conveying device 65 is located above the upper casing 20. The gas burner 60 is inserted into the upper casing 20 while moving downward along the -z axis direction through the gas burner conveying device 65. When the gas burner 60 is not used, the gas burner 60 can be lifted in the +z-axis direction by the gas burner conveying device 65 and removed. Since the driving motor 651 is attached to the gas burner conveying device 65, the gas burner 60 is raised or lowered while the gas burner conveying device 65 is raised or lowered by the driving motor 651. Since the detailed structures of the gas burner conveying device 65 and the driving motor 651 can be easily understood by those of ordinary skill in the art, detailed descriptions thereof will be omitted.

As the gas used in the gas burner 60, for example, brown gas may be used. Brown gas refers to a gas obtained by electrolyzing water, and here it is interpreted to include a mixed gas of hydrogen and oxygen. Brown gas is mixed with hydrogen and oxygen in an equivalent ratio of 2:1. When water is electrolyzed, hydrogen is obtained from the cathode and oxygen is obtained from the anode. Brown gas is produced by collecting hydrogen and oxygen at a time without separating and collecting hydrogen and oxygen. In the case of burning brown gas, since only water is generated as a combustion product, there is no concern about environmental pollution. Brown gas can be used to very quickly melt the solid waste W contained in the crucible 30. Therefore, the time for converting the solid waste (W) to the molten metal is greatly reduced, and high energy efficiency can be secured.

As shown in FIG. 1, the heat insulating material 15 partitions the opening 101. The heat insulating material 15 is located on the opposite side of the crucible 30 with the heater 40 interposed therebetween. Since the heat insulator 15 surrounds the crucible 30, energy required for melting the solid waste W can be reduced by blocking heat leaking to the outside. The exhaust pipe 80 exhausts exhaust gas discharged by melting of the solid waste W to the outside. That is, when brown gas is injected from the gas burner 60 into the crucible 30, the impurities contained in the solid waste W are burned by gas or pushed by the gas to ride the side of the crucible 30 and ride the crucible ( It flows to the outer lower side of 30). Accordingly, exhaust gas discharged by melting of the solid waste W is exhausted to the outside through the exhaust pipe 80.

As shown in FIG. 1, the inside of the recycled product manufacturing apparatus 100 may be observed through the probe 35. That is, the molten state of the solid waste W may be detected through a method such as inserting the probe 351 into the crucible 30 through the probe hole 35. The amount of gas injected through the gas burner 60 may be adjusted according to the temperature sensed by the probe 351. Further, the position of the gas burner 60 may be adjusted by moving the gas burner transfer device 65 up and down. As a result, the temperature of the molten metal can be kept constant when the solid waste is melted.

On the other hand, when the solid waste W accommodated in the crucible 30 is melted, the voids between the solid waste W disappear and the level of the solid waste W accommodated in the crucible 30 decreases. Therefore, since it is necessary to replenish the solid waste contained in the crucible 30 in order to increase the manufacturing efficiency, the solid waste W is additionally introduced into the crucible 30 through the solid waste hopper 90. Since the solid waste hopper 90 faces the crucible 30, the solid waste W input through the solid waste hopper 90 is accurately supplied into the crucible 30.

The heated and melted solid waste (W) is moved in the -x-axis direction by the moving cart 110 located under the lower casing (10), and then the hinge (55) extends in the y-axis direction crossing the x-axis direction. It is tilted and discharged to the outside. To this end, the hinge 55 is installed on the left side of the lower casing 10 by extending in the horizontal direction, that is, in the y-axis direction.

As shown in FIG. 1, the recycled product manufacturing apparatus 100 further includes a heater 40 located between the crucible 30 and the heat insulating material 15. As the heater 40, a silicon carbide heater, a medium frequency heater, or a high frequency heater can be used. The medium frequency heater may have a frequency range of about 1 kHz to 20 kHz. In addition, the high frequency heater may have a frequency range of 21 kHz to 300 kHz. Since such a heater can be easily understood by those of ordinary skill in the art to which the present invention pertains, a detailed description thereof will be omitted.

The heater 40 is spaced apart from the crucible 30 to indirectly heat the side of the solid waste W to melt it. Since the heater 40 is spaced apart from the crucible 30, the side of the solid waste W is indirectly heated and melted by the radiant heat of the heater 40. That is, the heater 40 heats and melts the side surfaces of the solid waste W in a non-contact manner. That is, in an embodiment of the present invention, the solid waste W is heated and melted in a hybrid manner including not only the gas burner 60 in the vertical direction but also the heater 40 in the lateral direction. Therefore, it is possible to melt the solid waste (W) more quickly and evenly. That is, since the solid waste W contains silicon that reduces heat transfer, it is difficult to uniformly melt the solid waste W with only the gas of the gas burner 60. Therefore, it is efficient to melt the solid waste W by using the heater 40 on the side in a hybrid form. Hereinafter, the structure of the heater 40 will be described in more detail with reference to FIG. 2.

2 schematically shows a heater 40 included in the recycling product manufacturing apparatus 100 of FIG. 1. The structure of the heater 40 of FIG. 2 is for illustrative purposes only, and the present invention is not limited thereto. Therefore, the structure of the heater 40 can be modified in a different form. Meanwhile, since the power connection or mounting structure of the heater 40 of FIG. 2 can be easily understood by those of ordinary skill in the art to which the present invention pertains, a detailed description thereof will be omitted.

As shown in FIG. 2, the heater 40 includes a plurality of first heater parts 401 and a plurality of second heater parts 403. The plurality of first heater parts 401 extend long in the y-axis direction, and the plurality of second heater parts 403 extend long in the x-axis direction crossing the plurality of first heater parts 401 at a right angle. Since the heater 40 has such a structure, it is possible to uniformly heat the side of the crucible 30 by completely surrounding the crucible 30. That is, among the plurality of first heater parts 401, a pair of first heater parts 401 are positioned with the crucible 30 interposed therebetween in the x-axis direction. In addition, a pair of second heater parts 403 among the plurality of second heater parts 403 are positioned with the crucible 30 interposed therebetween in the y-axis direction. In addition, in the vertical direction, that is, the z-axis direction, the pair of first heater parts 401 and the pair of second heater parts 403 are spaced apart from each other and alternately positioned. As a result, the side of the crucible 30 can be heated more evenly.

In the heater 40, a pair of first heater parts 401 are located on the top. This is because it is preferable that the direction in which the pair of first heater parts 401 extend and the axial direction of the hinge 55 (shown in FIG. 1) coincide with each other. That is, after the solid waste W is converted into molten metal, the crucible 30 must be tilted to discharge the molten metal in the direction of the arrow. In this case, the heating of the lower casing 10 must be maintained along the direction crossing the discharging direction of the molten metal, so that rapid solidification of the molten metal can be prevented in advance. Accordingly, the first heater unit 401 is located on the top and maintains the heated state, thereby making it easier to discharge the molten metal.

FIG. 3A shows a temperature profile of the molten metal in the recycling product manufacturing apparatus 100 of FIG. 1, and FIG. 3B shows a temperature profile of the molten metal in the melting apparatus according to the prior art. 3A and 3B schematically show the heat distribution of the molten metal in the crucible, that is, the heat distribution in the center of the crucible 30 and the side of the crucible 30 on the left and right.

As shown in FIG. 3A, in the recycling product manufacturing apparatus 100 of FIG. 1, not only the solid waste W is directly heated by the gas burner in the vertical direction indicated by the arrow, but also the solid waste W is indirectly heated to the left and right sides. Is heated. As a result, a uniform temperature profile is obtained over all surfaces inside the crucible 30, and the maximum temperature can also be raised to 1700°C. In contrast, in the prior art of FIG. 3B where there is no side heating and only vertical heating, the temperature deviation is too large for each position inside the crucible 30. That is, while the central temperature of the solid waste W in the center of the crucible 30 directly heated by the gas burner is the highest, the temperature is very low since the side of the crucible 30 is not directly heated. Therefore, it is difficult to uniformly melt the solid waste W. In particular, in an embodiment of the present invention, the solid waste (W), not the general raw material, is melted. Therefore, due to the characteristics of raw materials, not only does the solid waste W contain impurities such as silicon, but also segregation. Therefore, it is possible to obtain a more uniformly well-melted molten metal through the heating form of FIG. 3A than the heating form of FIG. 3B.

4 schematically shows a flow chart of a method for manufacturing a recycled product using the recycling product manufacturing apparatus of FIG. 1. The flow chart of the method for manufacturing a recycled product of FIG. 4 is for illustrative purposes only, and the present invention is not limited thereto. Therefore, each step of the method of manufacturing recycled products can be varied in various ways.

And Figures 5 to 7 are views schematically showing each step of the recycling product manufacturing method of FIG. That is, Figure 5 shows the steps (S10, S20, S30, S40, S50, S60, S70) of Figure 4, Figure 6 shows the steps (S80, S90) of Figure 4, Figure 7 It shows step S100. On the other hand, Figures 5 to 7 shows a state of viewing the recycling product manufacturing apparatus 100 in the -x-axis direction of Figure 1 for convenience. Hereinafter, each step of FIG. 4 will be described in detail by combining FIGS. 5 to 7.

As shown in Figure 4, the recycling product manufacturing method, the step of providing a lower casing equipped with a crucible and a heater (S10), providing a lower casing and a detachable upper casing (S20), raising the lower casing toward the upper casing The upper casing and the lower casing are in close contact with each other (S30), the step of injecting the solid waste into the crucible (S40), the step of indirectly heating and melting the solid waste by heating the side of the crucible with a heater (S50), the second opening Supplying gas through a gas burner inserted into the furnace (S60), direct heating and melting by spraying the gas toward solid waste (S70), descending the lower casing to separate it from the upper casing (S80), and the lower casing And horizontally moving (S90), and discharging the molten metal of solid waste to the outside by tilting the lower casing around the hinge (S100). In addition, the method of manufacturing a recycled product may further include other steps.

First, in step S10 of FIG. 4, a lower casing 10 is provided. Since the lower casing 10 is located on the moving bogie 110 (shown in FIG. 5), it can be freely moved to a desired location.

In addition, in step S20 of FIG. 4, a lower casing 10 and a detachable upper casing 20 are provided. (Shown in FIG. 5) The upper casing 20 is stably mounted by the cradle 25. Therefore, the upper casing 20 remains floating in the air even if it is not supported by the lower casing 10.

In step S30 of FIG. 4, the lower casing 10 is raised toward the upper casing 20 in the direction of the arrow in FIG. 5. (See Fig. 5) As a result, the lower casing 10 and the upper casing 20 are in close contact with each other. In this case, it is sufficient to simply position the lower casing 10 under the upper casing 20, but it is preferable to align the upper casing 20 and the lower casing 10. That is, it is necessary to align the upper casing 20 and the lower casing 10 so that the openings 101 and 201 communicate with each other. Therefore, although not shown in FIG. 5, the upper casing 20 and the lower casing 10 may be coupled to each other using a separate coupling member. On the other hand, after the lower casing 10 and the upper casing 20 are in close contact with each other, the openings 101 and 201 are evacuated to make the inside of the recycled product manufacturing apparatus 100 into a vacuum. That is, foreign matter and moisture present in the openings 101 and 201 are removed by vacuum pumping. As a result, oxygen in the air existing in the openings 101 and 201 reacts with the solid waste to prevent the formation of oxides.

Next, in step S40 of FIG. 4, the solid waste W is put into the crucible 30. That is, the solid waste W is charged into the crucible 30 through the solid waste hopper 90. (See Fig. 5)

In step S50 of FIG. 4, the side of the crucible 30 is heated with a heater 40 to indirectly heat and melt the solid waste W. As a result, the solid waste W can be heated evenly from the side. Particularly, depending on the charging amount of the solid waste W, only the lower heater of the heater 40 is first heated first, and the amount of the heater 40 that is gradually operated can be increased to the upper side according to the increase in the charging amount of the solid waste W. That is, the heater 40 operated in response to the charging level of the solid waste W may be gradually increased from the bottom to the top.

Meanwhile, in step S60, gas is supplied through the gas burner 60. The gas (shown in FIG. 5) may be brown gas. The gas burner 60 passes through the upper casing 20 and is inserted into the second opening 201. The gas burner 60 is positioned in the vertical direction.

In step S70 of FIG. 4, the gas is directly heated and melted by spraying the gas toward the solid waste W. That is, the gas is melted by high temperature heat while directly contacting the solid waste W. In this case, while raising the gas burner 60 upward, another solid waste W may be additionally introduced into the crucible 30 through the solid waste hopper 90. And the solid waste (W) additionally added to the gas burner 60 is heated and melted. As a result, the amount of molten metal can be continuously increased. On the other hand, the additionally injected solid waste (W) is also indirectly heated and melted by the heater (40). As a result, it is possible to uniformly melt the solid waste W by heating it not only from the vertical upper side but also from the side.

In step S80 of FIG. 4, the lower casing 10 is lowered and separated from the upper casing 20. In other words, it is possible to stably descend by separating the lower casing 10 from the upper casing 20 by using the hydraulic shaft 50.

Next, in step S90 of FIG. 4, the lower casing 10 is horizontally moved. That is, the lower casing 10 is moved in the x-axis direction. (Shown in FIG. 6) The lower casing 10 can be stably moved by using the moving bogie 110.

Finally, in step S100 of FIG. 4, the lower casing 10 is tilted with the hinge 55 as an axis to discharge the molten metal of the solid waste W to the outside. That is, the molten metal is discharged to the outside by tilting the lower casing 10 in the direction of the arrow in FIG. 7. The lower casing 10 covered with the cover 58 can stably discharge the molten metal to the outside by forming a narrow spout 59 between the cover 58 and the cover 58. Since the first heater part 401 is located on the top, it prevents the molten metal from hardening and makes it easier to discharge. Meanwhile, although the tilting method is illustrated in FIG. 7, the molten metal may be pumped out using a robot or the molten metal may be discharged from the lower casing 10 to the outside by an overflow method.

As shown in FIG. 7, the recycled product manufacturing apparatus 100 further includes a cooling nozzle 120, a swash plate 122, and a conveyor 123. In addition, the recycled product manufacturing apparatus 100 may further include other parts.

Since the swash plate 122 is located at an inclined position, the molten metal can be easily dropped downward while controlling the speed of the molten metal. The cooling nozzle 120 is positioned on the swash plate 122. The cooling nozzle 120 cools the molten metal by spraying cooling water into the molten metal and converts it into a recycled product. The conveyor 123 is located under the swash plate 122 and may use a scraper. A belt or chain (not shown) is installed inside the conveyor 123. The conveyor 123 transfers the recycled product provided through the swash plate 122 to the outside by a belt or chain. In other words, recycled products can be transported to the outside and supplied to consumers. Recycled products may be used as civil engineering materials or building materials, and thus may be provided to construction companies.

8 schematically shows an apparatus 200 for manufacturing recycled products according to a second embodiment of the present invention. Since the structure of the recycled product manufacturing apparatus 200 of FIG. 8 is the same as that of the recycled product manufacturing apparatus 200 of FIG. 1, the same reference numerals are used for the same parts, and detailed descriptions thereof will be omitted.

As shown in FIG. 8, the recycling product manufacturing apparatus 200 includes a solid waste hopper 92, a through hole 91, and a horizontal transfer unit 96. The solid waste hopper 92 faces the upper casing 20 spaced apart from each other in the horizontal direction, that is, in the x-axis direction. That is, the solid waste hopper 90 of FIG. 1 is located above the upper casing 20, whereas the solid waste hopper 92 of FIG. 8 is located adjacent to the upper casing 20, so that the recycling product manufacturing apparatus 200 It can be installed in a space with a relatively small height. In addition, since it is located spaced apart from the upper casing 20, the volume of the solid waste hopper 92 can be greatly reduced.

The through hole 91 is formed through the side surface of the upper casing 20. In particular, when heating the solid waste, it is necessary to block the through hole 91 in order to keep warm. That is, when the horizontal transfer unit 96 is located in the through hole 91 to supply solid waste, the through hole 91 is automatically blocked, but the horizontal transfer unit 96 is not located in the through hole 91 It is necessary to block the through hole 91. Therefore, the through hole 91 is manufactured in an open/closed manner. That is, although not shown in FIG. 8, a gate is installed in the through hole 91 to open and close the through hole 91 as necessary. That is, when the horizontal transfer unit 96 is inserted into the through hole 91, the gate is opened, and when the horizontal transfer unit 96 is removed from the through hole 91, the gate is closed. The through hole may be formed in a cylindrical shape.

The horizontal transfer unit 96 moves left and right on the support 99 in the horizontal direction. That is, by using the traction cylinder 97, the horizontal transfer unit 96 in the direction of the arrow may be pushed in the +x-axis direction or pulled in the -x-axis direction. Therefore, it is possible to freely change the position of the horizontal transfer unit 96 according to the progress of the process.

The horizontal transfer unit 96 is located below the solid waste hopper 92 and receives solid waste from above. The horizontal transfer unit 96 includes screws 961 rotated by a drive motor 98 to transfer solid waste therein. The diameters of the screws 961 located below the solid waste hopper 92 are the same, but the diameters of the screws 963 located on the right side thereof become smaller as they get closer to the upper casing 20. Accordingly, the conveyed solid waste is compressed by the screws 963 and supplied to the crucible 30 through the second opening 201. And, while the solid waste is compressed by the screws 963, moisture contained therein is discharged downward. Although not shown in FIG. 8, a plurality of discharge holes are formed under the horizontal transfer unit 96 to discharge moisture. Moisture is discharged below the water through a plurality of discharge holes and discharged to the water storage tank 95 through the water discharge port 93. Since the solid waste W charged in the crucible 30 is heated at a high temperature, there is a risk of explosion when moisture is introduced, and a large amount of water vapor is rapidly generated, which is dangerous in the process. Therefore, the solid waste is compressed using the screws 963 to block moisture before flowing into the crucible 30. As a result, while increasing the combustion efficiency of the solid waste W in the crucible 30, problems that may be caused by moisture can be prevented in advance.

The method of manufacturing recycled products using the recycled product manufacturing apparatus of FIG. 8 proceeds as follows. First, the through hole 91 is opened. That is, the through hole 91 is opened by opening the gate. Then, by pushing the horizontal transfer unit 96 in the +x-axis direction with the traction cylinder 97, the horizontal transfer unit 96 is positioned under the solid waste hopper 92, and the right end thereof is inserted into the through hole 91. And by driving the drive motor 98 to rotate the screws (961, 963). Then, the lower part of the solid waste hopper 92 is opened to load the solid waste into the horizontal transfer unit 96, and the solid waste is introduced into the crucible 30 through the second opening 201 along the +x-axis direction. In addition, while the solid waste is compressed by the screws 963, moisture contained therein is discharged to the water outlet 93 and collected in the water storage tank 95. When the supply of high-quality waste is completed, first, the solid waste supply of the solid waste hopper 92 is cut off. Then, the drive motor 98 is driven at a high speed to charge all the solid waste remaining in the horizontal transfer unit 96 into the crucible 30. When no more solid waste remains, the drive motor 98 is stopped. Next, the traction cylinder 97 is pulled to move the horizontal transfer unit 96 in the -x-axis direction. Then, the upper casing 20 is closed by closing the through hole 91. Since the solid waste from which moisture has been removed can be efficiently charged into the crucible 30 through such a process, it is possible to block problems that may occur due to moisture while improving the combustion efficiency of the recycling product manufacturing apparatus 200.

Hereinafter, the present invention will be described in more detail through experimental examples. These experimental examples are for illustrative purposes only, and the present invention is not limited thereto.

Experimental example

Waste glass wool, which is used as a raw material for glass wool, was melted using various types of melting furnaces. The density of the waste glass wool was 240kg/m ³ and the volume was 0.5663369m ³ . The air temperature was 20°C, and the melting temperature was uniformly maintained at 1350°C after the temperature was raised. Since the rest of the experimental process can be easily understood by those of ordinary skill in the art to which the present invention pertains, a description thereof will be omitted.

Experimental Example 1

750kg of waste glass wool was melted using the recycled product manufacturing apparatus of FIG. 1. Since the amount of waste glass wool was large, it was intermittently added to the crucible and melted. Brown gas was used as the gas. The crucible volume of the apparatus for producing recycled products of solid waste was about 0.26 m ³ . The weight of the SiC crucible was 204 kg, and the weight of the insulating material surrounding it was 203.9 kg. And the weight of the lower casing was 311.6kg. As a heater, an electric heater made of silicon carbide was used. The rest of the experimental process was the same as the experimental example described above.

Experimental Example 2

250 kg of waste glass wool was melted. Since the amount of waste glass wool was small, the waste glass wool that was first added to the crucible was continuously added and melted while melting. The rest of the experimental process was the same as in Experimental Example 1 described above.

Comparative Example 1

1 ton of waste glass wool was melted using a brown gas type surface melting furnace disclosed in Korean Registered Office No. 231985. The inner volume of the surface melting furnace was about 1.42 m ³ . Since the rest of the experimental process can be easily understood by those of ordinary skill in the art to which the present invention pertains, a description thereof will be omitted.

Comparative Example 2

250 kg of waste glass wool was melted using only a medium frequency melting furnace. The volume of the medium frequency melting furnace was about 0.26 m ³ . That is, the size of the medium frequency melting furnace crucible was 800mm x 430mm x 750mm. The weight was about 15kg, the voltage was 830V for three phases, and the power was 8.5kW. In the main body of the medium-frequency melting furnace, the medium frequency required for dissolution of the waste glass wool was controlled, and in a water tank, the molten waste glass wool was solidified to manufacture a building material. Since the rest of the experimental process can be easily understood by those of ordinary skill in the art to which the present invention pertains, a description thereof will be omitted.

Experiment result

In Experimental Example 1, Experimental Example 2, Comparative Example 1, and Comparative Example 2, the amount of electricity consumed when melting the waste glass wool was measured. The amount of electricity was measured and converted into the amount of electricity required for the production of 1 ton of waste glass wool. The experimental results of Experimental Example 1, Experimental Example 2, Comparative Example 1, and Comparative Example 2 are summarized in Table 1 below and shown.

Experimental Example 1

As a result of precise measurement, it was confirmed that 698 kW of electricity was used when brown gas was generated and 1 ton of waste glass wool was melted using an electric heater.

Experimental Example 2

It was confirmed that 690kW of electricity was used when melting 1 ton of waste glass wool by generating Brown gas and using an electric heater. That is, it was found that the melting efficiency was improved.

Comparative Example 1

It was found that the total amount of electricity consumed in the use of brown gas in the surface melting furnace was 2,100 kW.

Comparative Example 2

It was confirmed that the amount of electricity input to the use of the medium-frequency melting furnace was 600 kW. Therefore, it was confirmed that the total amount of electricity used when melting 1 ton of waste glass wool was 2400 kW.

NO Experimental example volume Electricity consumption per ton of waste glass wool One Experimental Example 1 0.26m ³ 698kW 2 Experimental Example 2 0.26m ³ 690kW 3 Comparative Example 1 1.42m ³ 2,100kW 4 Comparative Example 2 0.26m ³ 2,400kW

As shown in Table 1, in the case of Experimental Example 1 and Experimental Example 2, the volume of the recycled product manufacturing apparatus was small, so that the occupied area was small, but compared to Comparative Examples 1 and 2, waste glass was used with only about 25% to 33% of electricity. Building materials could be manufactured by melting wool. The surface melting furnace of Comparative Example 1 was 5.46 times larger in volume than the recycled product manufacturing apparatus of Experimental Example 1 and Experimental Example 2, and electricity consumption was also about 3.9 times more. In addition, the medium-frequency melting furnace of Comparative Example 2 had the same volume as the recycled product manufacturing apparatus of Experimental Example 1 and Experimental Example 2, but the electricity consumption was about 3.3 times higher. Accordingly, it was found that the recycled product manufacturing apparatus of Experimental Example 1 and Experimental Example 2 were superior in terms of space occupancy and electricity consumption compared to that of using only the surface melting furnace of Comparative Example 1 and the medium-frequency melting furnace of Comparative Example 2. The present invention was described above. Although described according to the following description, it will be readily understood by those who are engaged in the technical field to which the present invention pertains that various modifications and variations are possible without departing from the concept and scope of the following claims.

10. Lower casing
15, 17. Insulation
20. Upper casing
25. Cradle
30. Crucible
35. Probe
351. Probe
40. Heater
50. Hydraulic shaft
55. Hinge
58. Cover
59. Trough
60. Gas Burner
65. Gas burner conveying device
80. Exhaust pipe
90, 92. Solid waste hopper
91. Through hole
93. Water outlet
95. Water storage tank
96. Horizontal transfer section
961, 963. Screws
97. Traction cylinder
98. Drive motor
99. Support
100. Recyclables Manufacturing Equipment
101, 201.Opening
110. Mobile Bogie
401, 403. Heater
651. Gas Burner Drive Motor
961, 963. Screws
W. Solid waste

Claims (10)

delete delete delete delete delete delete Providing a lower casing in which a first opening is formed on the upper side and a crucible and a heater surrounding the crucible are installed in the first opening,
Providing a second opening in communication with the first opening is formed on the lower side, and the upper casing detachable from the lower casing,
Providing a solid waste hopper that is spaced apart from and faces each other in a horizontal direction with the upper casing, and stores solid waste containing silicon,
Providing a through hole that penetrates the upper casing in a horizontal direction and communicates with the second opening, and has a gate installed to open and close it,
Providing a horizontal transfer unit applied to move in a horizontal direction under the solid waste hopper, and formed with a plurality of discharge holes under the solid waste hopper,
Providing a water outlet located below the solid waste hopper and the horizontal transfer unit,
Providing a water storage tank located below the water outlet,
Raising the lower casing toward the upper casing to make the upper casing and the lower casing in close contact with each other,
Opening the through hole by opening the gate,
The horizontal transfer part is moved along the horizontal direction and inserted into the through hole,
The solid waste hopper supplying the solid waste to the horizontal transfer unit,
Discharging the moisture removed from the solid waste through the plurality of discharge holes while the horizontal transfer unit compresses the solid waste and supplies it to the crucible,
Storing the moisture in the water storage tank via the moisture outlet,
When the supply of the solid waste is completed, blocking the solid waste hopper,
Charging all the solid waste remaining in the horizontal transfer unit into the crucible,
Removing the horizontal transfer unit from the through hole and closing the gate to close the through hole,
Indirect heating and melting of the solid waste by heating the side of the crucible with the heater,
Supplying gas through a gas burner penetrating through the upper casing and inserted into the second opening,
Igniting the gas and injecting the gas toward the solid waste to directly heat and melt the solid waste,
Lowering the lower casing to separate it from the upper casing,
Moving the lower casing in a horizontal direction, and
Discharging the molten metal of the solid waste to the outside by tilting the lower casing with a hinge installed on one side of the lower casing with an axis
Including,
In the step of providing the lower casing, the heater
A plurality of first heater units extending in a first direction parallel to the horizontal direction, and
A plurality of second heater units extending in a second direction perpendicular to the plurality of first heater units
Including,
At least one pair of first heater parts among the plurality of first heater parts are spaced apart from each other and positioned with the crucible therebetween,
At least one pair of second heater parts among the plurality of second heater parts are spaced apart from each other and positioned with the crucible therebetween,
The at least one pair of first heater parts among the plurality of first heater parts and the plurality of second heater parts are located at the top,
In the step of discharging the molten metal of the solid waste to the outside, the axial direction of the hinge is the same as the direction in which the at least one pair of first heaters positioned at the top extends, and the molten metal is at least one pair of first heaters positioned at the top. 1 A method of manufacturing a recycled product of solid waste applied to maintain heating of the lower casing along a direction crossing the discharge direction of the molten metal while being discharged directly above the heater parts. delete delete In clause 7,
Discharging the molten metal to an inclined surface after discharging the molten metal of the solid waste to the outside, and
Converting the molten metal into recycled products by spraying cooling water into the molten metal from a cooling nozzle installed on the inclined surface
Method for manufacturing a recycled product of solid waste further comprising a.

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