CN209890702U - Metal recovery device - Google Patents
Metal recovery device Download PDFInfo
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- CN209890702U CN209890702U CN201920326600.5U CN201920326600U CN209890702U CN 209890702 U CN209890702 U CN 209890702U CN 201920326600 U CN201920326600 U CN 201920326600U CN 209890702 U CN209890702 U CN 209890702U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The utility model provides a metal recovery unit separates and retrieves the metal from the metal contains thing, and it possesses cauldron unit, stirring unit and drive unit. The tank unit has a receiving tank for receiving the metal content. The stirring unit can rotate around a rotation axis extending in the vertical direction to stir the metal content in the tank unit. The driving unit drives the stirring unit to rotate. The stirring unit has a first stirring blade and a second stirring blade. The second stirring blade is provided radially outward of the rotating shaft with respect to the first stirring blade. The first stirring blade and the second stirring blade can selectively rotate in the same direction and in opposite directions.
Description
Technical Field
The utility model relates to a metal recovery unit.
Background
Conventionally, a recycling treatment has been performed in which a metal such as aluminum is separated from scrap metal containing the metal as a main component and recovered. In the first stage of the recycling process, scrap metal is melted in a melting furnace and the molten metal components are recovered. The residue called dross or the like remaining in the recovered melting furnace contains many metal components. Therefore, in the second stage of the recycling treatment, a treatment of separating and recovering metals from the metal-containing materials discharged as the residue is performed. For example, in an aluminum dross processing method disclosed in japanese patent laid-open publication No. h 10-195553, dross contained in a press chamber is pressed to separate and collect molten aluminum in the dross.
[ patent document 1 ] Japanese patent laid-open publication No. Hei 10-195553
In recent years, the above-described recycling process has attracted attention from the viewpoint of resource saving and energy saving. Therefore, further improvement in efficiency of separating and recovering metals from metal-containing materials is desired.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can further improve the metal recovery unit of the efficiency of separating and retrieving the metal from the metal content thing.
The utility model provides a metal recovery device separates and retrieves the metal from the metal contains the thing, metal recovery device includes: a tank unit having a storage tank for storing the metal content; a stirring unit that can rotate around a rotation axis extending in a vertical direction and stir the metal-containing material in the tank unit; and a driving unit configured to drive the stirring unit to rotate, wherein the stirring unit includes a first stirring blade and a second stirring blade, the second stirring blade is provided on a radially outer side of the rotating shaft than the first stirring blade, and the first stirring blade and the second stirring blade are selectively rotatable in the same direction and in opposite directions.
Further features and advantages of the invention will become apparent from the embodiments shown below.
According to the utility model discloses, can provide the metal recovery unit that can further improve the efficiency of separating and retrieving the metal from the metal content thing.
Drawings
Fig. 1 is a front view of a metal recovery apparatus according to an embodiment.
Fig. 2 is a sectional view of the metal recovery apparatus as viewed from the front.
Fig. 3A is a plan view showing a structural example of the tank unit of the embodiment.
FIG. 3B is a cross-sectional view of the tank unit taken along line L-L of FIG. 3A.
Fig. 4 is a front view showing a configuration example of the stirring unit.
Fig. 5 is a plan view of the drive unit.
Fig. 6A is a plan view showing a configuration example of the contact member.
Fig. 6B is a side view of the contact member as viewed from the front-rear direction.
Fig. 7 is a front view of a metal recovery apparatus according to a modification.
Description of the reference numerals
100. 100a … metal recovery unit; 1. 1a … kettle unit; 11. 11a … holding kettle; 111 … pan section; 112 … flange portion; 113 outlet port 113 …; 114 … pin; 12. 12a … housing; 121 … elevator frame; 13. 13a … heat insulating material; 14a … heater; 2 … stirring unit; 21 … axis; 211 … inner shaft portion; 212 … outer shaft portion; 23 … a first stirring blade; 231 … first inner leaf; 232 … second inner leaf; 24 … stirring support part; 25 … second stirring blade; 251 … support rods; 252 … outer leaf; 27 … protrusions; 3 … drive unit; 31 … machine room; 311 … wall portions; 32 … drive motor; 321 … a first drive motor; 322 … second drive motor; 3211. 3221 … transmission; 33 … arms; 34 … contact member; 341 … first roller; 342 … a second roller; 5 … outer shell; 51. 51a … metal recovery chamber; 511 … wall portions; 5111 … entrance and exit; 512 … window portion; 513 … demarcate walls; 5131 … opening part; 514. 514a … land; 515 … input part; a 53 … frame; 531 … a column part; 5311 … connecting plate; 5312 … connecting plate opening; 5313 … flanges; 532 … beam portion; 55 … actuator; 551 … cylinder body; 552 … piston rod; 57 … first station; 571 …, bottom; 572 … A first fence; 573 … first step; 59 … second console; 591 … Tan section; 592 … a second rail; 593 … second step; 7. 7a … operating device; 8. 8a … recovery vessel; D. da … metal content; w1, W2 … workers; f … floor surface.
Detailed Description
The illustrated embodiments are described below with reference to the accompanying drawings.
In the following description, the depth direction in fig. 1 and 2 is referred to as the "front-rear direction". In the front-rear direction, the direction from the back toward the front is referred to as "front X", and the direction from the front toward the back is referred to as "rear". The front surface of the metal recovery apparatus 100 when the metal recovery apparatus 100 is viewed from the front is referred to as "front surface".
A direction from one of the right and left sides of fig. 1 and 2 to the other is referred to as a "left-right direction". In the left-right direction, a direction from the right side to the left side is referred to as "left Y", and a direction from the left side to the right side is referred to as "right".
In the embodiment, the floor surface F is parallel to the horizontal plane and perpendicular to the vertical direction. Hereinafter, the vertically upper side is referred to as "upper Z", and the vertically lower side is referred to as "lower".
< Structure of Metal recovery apparatus >
The metal recovery apparatus 100 of the present embodiment is provided on the floor surface F. Fig. 1 is a front view of a metal recovery apparatus 100 according to an embodiment. Fig. 2 is a sectional view of the metal recovery apparatus 100 as viewed from the front. In fig. 2, a front wall 311 of the machine chamber 31 and a front wall 511 of the metal recovery chamber 51, which will be described later, are omitted, and the pillar 531 of the frame 53 is shown in a transparent manner. In order to facilitate understanding of the structure, fig. 2 shows the tank unit 1 and the recovery vessel 8 in a virtual cross section when the tank unit 1 and the recovery vessel 8 are cut by a plane parallel to the vertical direction and the horizontal direction. In fig. 2, the stirring unit 2 and the driving unit 3 when the driving unit 3 moves to the lower position are shown by solid lines. The stirring unit 2 and the driving unit 3 when the driving unit 3 moves to the uppermost Z position are shown by broken lines.
The metal recovery apparatus 100 separates and recovers the metal from the metal-containing material D by stirring the metal-containing material D heated to the melting point of the metal or higher. Metals are, for example, aluminum, zinc, lead, tin.
The metal recovery apparatus 100 includes a tank unit 1, a stirring unit 2, a driving unit 3, a casing 5, an operation device 7, and a recovery container 8.
The tank unit 1 contains a metal-containing material D heated to a temperature not lower than the melting point of the metal. The metal-containing material D is, for example, a metal slag remaining in a melting furnace of scrap metal after recovering molten metal from the furnace. In the present embodiment, the tank unit 1 is detachable from the housing 5.
The stirring unit 2 can rotate around a rotation axis A along the vertical directionXThe metal-containing material D in the tank unit 1 is stirred by rotating the center. The stirring unit 2 is connected to the drive unit 3.
The drive unit 3 drives the stirring unit 2 to rotate in accordance with an operation input received by the operation device 7. The driving unit 3 is movable in the vertical direction together with the stirring unit 2 in accordance with the operation input. For example, when the metal content D is stirred, the driving unit 3 moves to a lower position as shown by a solid line in fig. 2. At this time, the top end portion of the stirring unit 2 enters the tank unit 1. When the drive unit 3 is inspected and repaired, the drive unit 3 also moves to a position below the position indicated by the solid line in fig. 2. On the other hand, when the tank unit 1 is taken out from the housing 5, the drive unit 3 moves to the uppermost Z position together with the stirring unit 2 as shown by the broken line in fig. 2.
The casing 5 houses the tank unit 1, the top end portion of the stirring unit 2, the collection container 8, and the like. In the housing 5, the tank unit 1 and the recovery container 8 are disposed so as to be able to enter and exit the housing 5 through the entrance 5111. The housing 5 supports the drive unit 3 so as to be movable in the vertical direction. The stirring unit 2 is movable in the vertical direction within the housing 5 in accordance with the movement of the driving unit 3.
The operation device 7 receives an operation input from a user.
The recovery vessel 8 is disposed below the kettle unit 1. The recovery container 8 contains the metal separated from the metal-containing material D in the tank unit 1 and discharged from the tank unit 1.
< Structure of housing >
Next, the structure of the housing 5 will be described with reference to fig. 1 and 2. The housing 5 has a metal recovery chamber 51, a frame 53, an actuator 55, a first operation table 57, and a second operation table 59.
The metal recovery chamber 51 is disposed below the drive unit 3. The metal recovery chamber 51 accommodates therein the kettle unit 1, a shaft 21 of the stirring unit 2, which will be described later, and the recovery container 8. The drive unit 3 is disposed outside the metal recovery chamber 51, and is not surrounded by a wall or the like in the present embodiment. Therefore, the work such as inspection and repair of the drive unit 3 can be performed in the open space. Therefore, workability can be improved and work can be performed in a better environment than in the case where the drive unit 3 is surrounded by a wall or the like.
The metal recovery chamber 51 includes a wall portion 511, a window portion 512, a partition wall 513, a table portion 514, and an input portion 515. In addition, a dust collecting device (not shown) is provided in the metal recovery chamber 51. The dust collecting device collects dust generated in a process of separating and recovering metals from the metal-containing material D.
In the present embodiment, the metal recovery chamber 51 is surrounded by 4 wall portions 511 and 1 partition wall 513. The wall 511 is a plate extending in the vertical direction, and the partition wall 513 is a top wall of the metal recovery chamber 51 in the present embodiment and is a plate extending parallel to the horizontal plane. The upper end of each wall 511 is connected to the outer edge of the partition wall 513.
An entrance 5111 for allowing the kettle unit 1 and the recovery container 8 to enter and exit is provided in the wall portion 511 on the front side of the metal recovery chamber 51. Further, a window portion 512 is provided in at least 1 wall portion 511 other than the front surface. A transparent glass is embedded in the window 512. As shown in fig. 2, the operator W1 can observe the inside of the metal recovery chamber 51 through the window 512.
The partition wall 513 partitions the tank unit 1 from the space in which the drive unit 3 is disposed. In this way, the mechanical chamber 31 of the drive unit 3 can be prevented from being exposed to the high-heat airflow rising from the kettle unit 1 and the dust rising with the airflow. Therefore, the devices and components such as the drive motor 32 housed in the machine room 31 can be protected from heat and dust. Therefore, the life of the devices and parts constituting the drive unit 3 can be significantly extended.
In the present embodiment, the partition wall 513 is formed of a steel plate, and is integrated with a below-described land portion 591 of the second table 59. However, the partition wall 513 is not limited to this example, and may be a member separate from the forum portion 591. At least one of the upper surface and the lower surface of the partition wall 513 may be covered with a heat insulating material. Thus, the mechanical room 31 can be more effectively prevented from being exposed to the high-heat airflow rising from the kettle unit 1.
An opening 5131 through which the shaft 21 of the stirring unit 2 passes is provided at the center of the partition wall 513. That is, the stirring unit 2 is connected to the driving unit 3 through the opening 5131.
The tank unit 1 is detachably provided on the table section 514. The table portion 514 supports the end portion of the lower surface of the tank unit 1 in the left-right direction.
The input portion 515 is a member for inputting a material to the metal-containing material D stored in the tank unit 1. The material to be charged is, for example, a heat-generating agent for suppressing a decrease in the temperature of the metal-containing material D, a separation solvent for promoting separation of the metal, a cooled metal-containing material D for adjusting the temperature of the metal-containing material D, or the like. When the temperature of the metal-containing material D is increased by the input of the exothermic agent or the like, the metal in the tank unit 1 causes an exothermic reaction. For example, when the metal is aluminum, if the temperature is 1050 ℃ or higher, the aluminum is oxidized by an exothermic reaction called a so-called thermite reaction, and the temperature is further increased. In this case, not only the metal recovery efficiency is lowered, but also the stirring unit 2 may be melted down. Therefore, by additionally charging the cooled metal-containing material D from the charging section 515, the temperature of the metal-containing material D can be lowered, and the above-described exothermic reaction can be avoided.
The frame 53 supports the drive unit 3 so as to be movable in the vertical direction at a position above the metal recovery chamber 51 by Z. The frame 53 has a pair of pillar portions 531 extending in the vertical direction, and a beam portion 532 bridging between the pillar portions 531. In addition, the number of the pillar portions 531 is not limited to 3 or more, as exemplified in the present embodiment.
The column portions 531 are H-shaped steel in the present embodiment, but are not limited to this example, and may be channel steel or the like. In the present embodiment, the beam portions 532 are a pair of channel steels. By using a common structural material for the pillar portion 531 and the beam portion 532, the frame 53 having a strong structure can be easily provided at low cost. Moreover, the column portion 531 can stably guide the movement of the driving unit 3.
Each of the posts 531 has a web 5311 and a pair of flanges 5313.
The connecting plate 5311 is a plate-like member extending in the vertical direction and expanding in the front-rear direction (see, for example, fig. 5 described later). One main surface of the connecting plate 5311 faces the machine chamber 31 of the drive unit 3. The connection plate 5311 is provided with a connection plate opening 5312 extending in the vertical direction. An arm 33 of the drive unit 3, which will be described later, passes through the link plate opening 5312.
The pair of flanges 5313 are each plate-shaped extending in the vertical direction and extending in the lateral direction (see, for example, fig. 5). The flanges 5313 are coupled to respective ends of the connecting plate 5311 in the front-rear direction. One end portion of each flange 5313 in the left-right direction is opposed to the machine chamber 31 of the drive unit 3. Hereinafter, the one end portion is referred to as a tip portion.
The actuator 55 uses a hydraulic pump, not shown, as a drive source, and moves the drive unit 3 together with the stirring unit 2 in the vertical direction in accordance with an operation input received by the operation device 7. The actuator 55 includes a cylinder 551 and a piston rod 552 receivable in the cylinder 551. The cylinder 551 and the piston rod 552 extend in the vertical direction. The cylinder 551 is fixed to the column 531. The upper end of the piston rod 552 is connected to the arm 33 of the drive unit 3. At least the lower end of the piston rod 552 is housed in the cylinder 551.
When the drive unit 3 is moved upward Z, the actuator 55 moves the piston rod 552 upward Z from inside the cylinder 551. In response to this, the driving unit 3 moves upward Z together with the stirring unit 2. When the drive unit 3 is moved downward, the actuator 55 moves the piston rod 552 downward and stores it in the cylinder 551. In response to this, the driving means 3 moves downward together with the stirring means 2.
The first station 57 has a bottom 571, a first fence 572, and a first step 573. The bottom 571 is a standing part for work, and as shown in fig. 2, the worker W1 can stand on the bottom 571. The operator W1 on the bottom 571 can operate the operation device 7 while observing the state in the tank unit 1 through the window 512. The first fences 572 are provided to protrude along the outer edge portion of the bottom 571 to prevent rolling off from the bottom 571 and the like. The first step 573 is a passage for the worker W1 to ascend and descend between the floor surface F and the bottom 571.
The second operating table 59 has a forum 591, a second fence 592 and a second ladder 593. In other words, the metal recovery device 100 has a forum 591, a second fence 592, and a second step 593. The forum 591 is a standing portion for work, and as shown in fig. 2, an operator W2 can stand on the forum 591. The operator W2 on the bottom 571 can perform operations such as inspection and repair of the drive unit 3. A second fence 592 is protrudingly provided along an outer edge portion of the land portion 591 to prevent rolling off from the land portion 591 and the like. The second step 593 is a path for the worker W2 or the like to ascend and descend between the floor surface F or the bottom 571 of the first operation table 57 and the plate section 591.
The forum portion 591 is disposed outside the metal recovery chamber 51 as viewed in the vertical direction. The lip portions 591 are disposed below the upper end portion of the drive unit 3 when the drive unit 3 is moved to the lowermost position in the vertical direction. In this case, the land portion 591 is preferably disposed below the lower end portion of the drive unit 3. In the vertical direction, the forum 591 is disposed above Z the first stirring blade 23 and the second stirring blade 25 (see the stirring unit 2 drawn by the broken line in fig. 2) when the drive unit 3 moves to the uppermost Z. In this way, when performing work such as inspection and repair of the drive unit 3, it is not necessary to stand on a ladder or use the standing part every time. Therefore, the work can be performed safely and easily.
< Structure of kettle Unit >
Next, the structure of the tank unit 1 will be described with reference to fig. 3A and 3B. Fig. 3A is a plan view showing a configuration example of the tank unit 1 of the embodiment. FIG. 3B is a sectional view of tank unit 1 taken along line L-L of FIG. 3A. Fig. 3B shows a cross section in a case where the tank unit 1 is virtually sectioned through a plane parallel to the vertical direction and the horizontal direction.
The tank unit 1 includes a storage tank 11, a casing 12, and a heat insulator 13.
The storage vessel 11 is a container for storing the metal-containing material D, and in the present embodiment, is an iron casting. The receiving vessel 11 has a pan portion 111 and a flange portion 112. The pan section 111 is bowl-shaped and downwardly concave, and in the present embodiment, is hemispherical. The flange portion 112 is a flange portion extending from the outer edge portion of the pan portion 111 toward the outside of the pan portion 111 in a direction parallel to the horizontal plane when viewed from the vertical direction. The bottom of the pan section 111 is provided with a discharge port 113. The discharge port 113 penetrates the pot portion 111 in the thickness direction. The discharge port 113 is filled with a plug 114. Mortar, ceramic fibers, or the like is used for the plug 114. The plug 114 blocks the discharge port 113 while the metal is separated from the metal content D by stirring. In addition, when the separated metal is recovered, the plug 114 is removed from the discharge port 113 by a projection 27, which will be described later, of the stirring unit 2.
The case 12 is a bottomed cylinder and surrounds the storage tank 11. The housing 12 is detachably disposed on the table portion 514 of the metal recovery chamber 51. Both end portions of the lower surface of the housing 12 in the left-right direction are supported by the table portion 514. The cylindrical portion of the case 12 has a hollow octagonal prism shape in the present embodiment, and houses the pot portion 111 and the heat insulating material 13 therein. The upper end of the barrel portion is connected to a flange portion 112. The connection between the two may be by welding or by a fastening structure using a bolt and a nut. The bottom portion of the housing 12 is plate-shaped. An opening (symbol omitted) is provided in the center of the bottom portion. A lower portion of the pan section 111 including the discharge port 113 is exposed to the outside of the housing 12 through the opening.
The housing 12 has an elevator frame 121 into which the forks of a forklift can be inserted. For example, when the tank unit 1 is moved into and out of the housing 5 by using a forklift, the forklift can insert a fork into the elevator frame 121, lift the tank unit 1, and move together with the tank unit 1 in this state.
The heat insulating material 13 is filled between the storage tank 11 and the case 12. As the heat insulating material 13, ceramic wool, a ceramic porous body, a heat-resistant brick, or the like can be used. The heat insulating material 13 can improve the heat retaining property of the metal content D stored in the tank unit 1 by preventing the heat of the metal content D from being dissipated through the storage tank 11. Therefore, the temperature of the metal content D can be suppressed from lowering at the time of the separation/recovery process, and therefore the efficiency of separating and recovering the metal from the metal content D in the separation/recovery process can be further improved. Further, by suppressing the temperature decrease of the metal-containing material D, the metal-containing material D is less likely to adhere to the inner side of the pot portion 111, the stirring unit 2, and the like. Therefore, the damage of the apparatus in the separation/recovery process can be reduced, and the work time and the work amount required for removing the metal-containing material D remaining after the separation/recovery process can be reduced.
The heat insulating material 13 can store heat transferred from the metal-containing material D through the storage tank 11. Therefore, when the separation/recovery treatment is continuously performed a plurality of times, the temperature of the storage tank 11 can be suppressed from decreasing. Therefore, the subsequent separation/recovery treatment can be performed without cooling the storage tank 11. This can improve the metal recovery efficiency when the separation/recovery process is continuously performed a plurality of times.
< Structure of stirring Unit >
Next, the structure of the stirring unit 2 will be described with reference to fig. 4. Fig. 4 is a front view showing a configuration example of the stirring unit 2. In addition, the following description will be made with respect to the rotation axis A of the stirring unit 2XThe parallel direction is referred to as the "axial direction". In addition, will be connected with the rotation axis AXThe perpendicular direction is referred to as "radial". And, in the radial direction, will approach the axis of rotation aXIs referred to as "radially inward" and will be directed from the axis of rotation AXThe direction of the separation is referred to as "radially outward". In addition, will be along the axis of rotation AXThe direction of the imaginary circumference as the center is referred to as "circumferential direction". In the present embodiment, the axial direction is parallel to the vertical direction, and the radial direction and the circumferential direction are parallel to the horizontal plane.
The stirring unit 2 has a shaft 21, a first stirring blade 23, a pair of stirring supports 24, a pair of second stirring blades 25, and a protrusion 27.
The shaft 21 has an inner shaft portion 211 and an outer shaft portion 212. Inner shaft portion 211 is along the leadA pillar shape extending in a vertical direction. The outer shaft portion 212 is a cylindrical shape extending in the vertical direction. The inner shaft portion 211 is disposed inside the outer shaft portion 212. The inner shaft 211 and the outer shaft 212 are arranged to rotate around a rotation axis A when viewed from the axial directionXIn the shape of a central concentric circle. The lower end of the inner shaft 211 protrudes downward from the lower end of the outer shaft 212. The inner shaft portion 211 and the outer shaft portion 212 are rotatable independently of each other.
The first stirring blade 23 is provided at the lower end of the inner shaft portion 211. The first stirring blade 23 has a first inner blade 231 and a second inner blade 232. The first inner fin 231 and the second inner fin 232 are each plate-shaped and have an opening at the center. The lower edges of the first inner fin 231 and the second inner fin 232 are curved along the inner surface of the pan part 111. The first inner blade 231 and the second inner blade 232 extend in different directions from each other radially outward from the lower end of the inner shaft 211. For example, in the present embodiment, the direction in which the first inner blade 231 extends is just opposite to the direction in which the second inner blade 232 extends.
The first inner blade 231 and the second inner blade 232 are asymmetric in shape when viewed in the circumferential direction. For example, in the present embodiment, as shown in fig. 4, the shape of the second inner blade 232 is similar to the shape of the first inner blade 231. The second inner leaf 232 has a smaller size than the first inner leaf 231. However, the second inner blade 232 may have a different shape that is not similar to the shape of the first inner blade 231, without being limited to this example.
The pair of stirring support portions 24 extend in different directions from each other radially outward from the lower end portion of the outer shaft portion 212 at a position Z above the first stirring blade 23. For example, in the present embodiment, the direction in which one of the stirring support portions 24 extends is just opposite to the direction in which the other stirring support portion 24 extends. The radially outer end of each stirring support portion 24 is provided with a second stirring blade 25.
The second agitating blades 25 are closer to the rotation axis A than the first agitating blades 23XIs disposed radially outwardly of. The number of the second agitating blades 25 is 2 in the present embodiment, but the present invention is not limited to this example, and may be 1 or 3 or more. In addition, each second stirring blade 25 is provided in the present embodimentAlong the axis of rotation AXThe plurality of ribs may be arranged at equal intervals in the circumferential direction, but the plurality of ribs is not limited to this example and may be arranged at different intervals in the circumferential direction.
Each of the second agitating blades 25 has a support rod 251 and an outer blade 252. The support rod 251 extends downward from the radially outer end of the stirring support portion 24. The support rod 251 may be columnar or plate-shaped with its main surface facing in the circumferential direction. The outer blade 252 is plate-shaped and provided at the lower end of the support rod 251. The lower edge portion of the outer blade 252 is curved along the inner surface of the pan section 111.
The first stirring blade 23 and the second stirring blade 25 are rotatable in the circumferential direction independently of each other, and are selectively rotatable in the same direction and in opposite directions to each other. In this way, in the process of separating and recovering the metal from the metal-containing material D, the rotation direction of the first inner blade 231 and the second inner blade 232 and the rotation direction of the outer blade 252 can be arbitrarily selected. Therefore, by combining the rotation directions and driving the first stirring blade 23 and the second stirring blade 25 to rotate according to the stirring state of the metal content D, an appropriate swirling flow of the metal content D can be generated in the pan section 111. Therefore, the force for stirring the metal-containing material D is increased, and the metal-containing material D can be stirred more efficiently. Further, the amount of the metal content D overflowing from the storage tank 11 is reduced. This can further improve the efficiency of separating and recovering the metal from the metal-containing material D. Further, the burden on the operator due to the operation of the separation/collection process can be reduced.
In the present embodiment, the first stirring blade 23 is rotated faster than the second stirring blade 25 so that the metal-containing material D is less likely to overflow from the storage tank 11. In addition, the rotation speed of the first stirring blade 23 is variable in multiple stages. On the other hand, the rotation speed of the second agitating blade 25 is constant. However, the rotation speed of the second stirring blade 25 is not limited to this example, and may be variable in other stages. That is, at least one of the first stirring blade 23 and the second stirring blade 25 may have a variable rotation speed. In this way, not only the rotation directions but also the rotation speeds can be combined according to the stirring state of the metal content D, and the first stirring blade 23 and the second stirring blade 25 can be driven to rotate, so that a more appropriate swirling flow of the metal content D can be generated in the pan section 111. Therefore, the efficiency of separating and recovering the metal from the metal-containing material D can be further improved, and the burden on the operator can be further reduced.
The protrusion 27 protrudes downward from the lower end of the inner shaft 211. When the metal separated from the metal-containing material D is recovered, the projection 27 passes through the discharge port 113 of the pan section 111 as the stirring means 2 moves downward. At this time, the projection 27 pushes the plug 114 out of the discharge port 113 and removes the plug 114. Then, the projection 27 is pulled out from the discharge port 113 of the pan 111 in accordance with the upward movement Z of the stirring unit 2. During the separation/recovery process, the metal separated from the metal-containing material D is heavier than the residue of the metal oxide or the like, and therefore remains on the bottom of the pot part 111. The separated metal is discharged to the outside of the pot portion 111 through the discharge port 113, and is stored in the recovery container 8.
< Structure of Driving Unit >
Next, the structure of the drive unit 3 will be described with reference to fig. 5. Fig. 5 is a plan view showing a configuration example of the driving unit 3. In fig. 5, a top plate of the machine chamber 31, which will be described later, is shown in a transparent manner.
The drive unit 3 has a machine chamber 31, a drive motor 32, and transmissions 3211, 3221, an arm 33, and a plurality of contact members 34.
The machine chamber 31 is surrounded by 4 wall portions 311 and a ceiling and a floor (not shown), and houses the drive motor 32, the transmissions 3211 and 3221, and the like therein. The wall portion 311 is plate-shaped extending in the vertical direction, and the top plate and the bottom plate are plate-shaped extending parallel to the horizontal plane. The upper end of each wall 311 is connected to the outer edge of the top plate, and the lower end of each wall 311 is connected to the outer edge of the bottom plate.
The drive motor 32 is a rotation drive source of the stirring unit 2. More specifically, the drive motor 32 includes a first drive motor 321 and a second drive motor 322. The first drive motor 321 is a rotation drive source of the first stirring blade 23, and is connected to the transmission 3211. The transmission 3211 transmits the rotational force of the first drive motor 321 to the inner shaft portion 211 of the shaft 21 in accordance with the operation input received by the operation device 7. The second drive motor 322 is a rotation drive source of the second stirring blade 25, and is connected to the transmission 3221. Transmission 3221 transmits the rotational force of second drive motor 322 to outer shaft portion 212 of shaft 21 in accordance with the operation input received by operation device 7.
The arms 33 are provided on the left and right wall portions 311 of the machine chamber 31. One end of the arm 33 is fixed to the wall portion 311. The other end of the arm 33 is connected to the piston rod 552 of the actuator 55 through a connecting plate opening 5312 provided in the connecting plate 5311. The piston rod 552 is moved in the vertical direction by the actuator 55, and the drive unit 3 is moved in the vertical direction together with the mixer unit 2.
The contact members 34 are fixed to the left and right wall portions 311 of the machine chamber 31 by 4 pieces (see fig. 2 and 5). The contact members 34 are arranged in the front-rear direction and the left-right direction on the respective left and right wall portions 311. Each contact member 34 is in contact with the pillar portion 531 of the frame 53, and more specifically, with each flange 5313 of each pillar portion 531. Fig. 6A is a plan view showing a configuration example of the contact member 34. Fig. 6B is a side view of the contact member 34 viewed from the front-rear direction.
Each contact member 34 has a first roller 341 and a second roller 342. The first roller 341 contacts the tip end portion of the flange 5313 and rolls in the vertical direction on the tip end portion in accordance with the movement of the machine chamber 31. The second roller 342 is in contact with the inner surface of the flange 5313, and rolls vertically on the inner surface as the machine chamber 31 moves. The inner surface is a main surface facing the other flange 5313 among the main surfaces of the one flange 5313.
When the machine chamber 31 moves in the vertical direction, the first rollers 341 of the contact members 34 are guided by the tip end portions of the flanges 5313, and the machine chamber 31 is restrained from rattling in the left-right direction. Further, the second rollers 342 of the contact members 34 are guided by the inner surfaces of the flanges 5313, thereby suppressing the shake of the machine chamber 31 in the front-rear direction. Therefore, the driving unit 3 can smoothly move together with the stirring unit 2 in the vertical direction, and the stirring unit 2 can be prevented from being shaken in the left-right direction and the front-rear direction. Therefore, the moving accuracy of the stirring unit 2 is improved. For example, when the stirring unit 2 is moved downward, the first stirring blade 23 and the second stirring blade 25 can be moved to positions along the inner surface of the pan part 111 without the first stirring blade 23, the second stirring blade 25, and the protrusion 27 colliding with the inner surface of the pan part 111. Moreover, the projection 27 can be more accurately passed through the discharge port 113. Therefore, the separation/recovery process can be easily performed, and damage to the apparatus can be avoided.
< modification example >
Next, a modified example of the embodiment will be explained. Here, a structure different from the above-described embodiment will be described. Note that the same components as those in the above embodiment will not be described.
Fig. 7 is a front view of a metal recovery apparatus 100a according to a modification. In fig. 7, for easy understanding of the structure, the tank unit 1a and the recovery vessel 8a are shown in phantom cross sections in the case where the tank unit 1a and the recovery vessel 8a are cut by planes parallel to the vertical direction and the horizontal direction.
In the modification, the pot unit 1a is fixedly provided inside the metal recovery chamber 51 a. The tank unit 1a includes a storage tank 11a, a case 12a, a heat insulator 13a, and a heater 14 a. Further, the present invention is not limited to this example, and the heat insulator 13a may not be provided in the tank unit 1 a.
The housing 12a is fixed to the base 514a of the metal recovery chamber 51 a. Specifically, the lower surface of the kettle unit 1a is fixed to the table portion 514a at the end in the left-right direction.
The heater 14a is a heat radiator that heats the storage tank 11a in accordance with an operation input received by the operation device 7 a. The heat generated by the heater 14a can suppress or prevent a decrease in the temperature of the metal content Da stored in the storage pot 11 a. Therefore, in the separation/recovery process, the efficiency of separating and recovering the metal from the metal-containing substance Da can be further improved. Further, it is possible to further reduce the damage of the apparatus in the separation/collection process and the work time and the work amount required to remove the metal-containing material Da remaining after the separation/collection process.
The embodiments of the present invention have been described above. The scope of the present invention is not limited to the above-described embodiments. The present invention can be variously modified in the above-described embodiments without departing from the scope of the present invention. The matters described in the above embodiments can be arbitrarily combined as appropriate within a range where no contradiction occurs.
INDUSTRIAL APPLICABILITY
The present invention is effective for a device for separating and recovering metal from a metal-containing material.
Claims (10)
1. A metal recovery apparatus for separating and recovering a metal from a metal-containing material,
the metal recovery device is characterized by comprising:
a tank unit having a storage tank for storing the metal content;
a stirring unit that can rotate around a rotation axis extending in a vertical direction and stir the metal-containing material in the tank unit; and
a driving unit driving the stirring unit to rotate,
the stirring unit has a first stirring blade and a second stirring blade,
the second stirring blade is provided further toward the radial outer side of the rotary shaft than the first stirring blade,
the first stirring blade and the second stirring blade can selectively rotate in the same direction and in opposite directions.
2. The metal recovery device according to claim 1,
the stirring unit further has an inner shaft portion extending in the vertical direction,
the first stirring blade has a first inner blade and a second inner blade extending from a lower end of the inner shaft portion in the different radial directions,
the second inner blade has a shape asymmetrical with respect to the rotation axis with respect to the first inner blade when viewed from a direction perpendicular to a direction in which the first inner blade extends and a vertical direction.
3. The metal recovery device according to claim 1,
at least one of the first stirring blade and the second stirring blade has a variable rotation speed.
4. The metal recovery device according to claim 1,
the tank unit further comprises:
a housing surrounding the holding kettle; and
and a heat insulating material filled between the storage kettle and the shell.
5. The metal recovery device according to claim 1,
the metal recovery device further comprises a metal recovery chamber in which the kettle unit is fixedly arranged,
the tank unit further includes a heater for heating the storage tank.
6. The metal recovery device according to claim 1,
the metal recovery device further comprises a metal recovery chamber for accommodating the kettle unit therein,
the metal recovery chamber has a partition wall that partitions the tank unit from a space in which the drive unit is disposed.
7. The metal recovery device according to claim 1,
the metal recovery device further includes:
a metal recovery chamber in which the kettle unit, the first stirring blade, and the second stirring blade are housed;
a Tan section disposed outside the metal recovery chamber when viewed in a vertical direction;
a frame supporting the drive unit so as to be movable in a vertical direction at a position above the metal recovery chamber; and
an actuator that moves the drive unit and the stirring unit together in a vertical direction,
in the vertical direction, the land portion is disposed below an upper end portion of the drive unit when the drive unit moves to the lowermost position, and above the first stirring blade and the second stirring blade when the drive unit moves to the uppermost position.
8. The metal recovery device according to claim 1,
the metal recovery device further includes:
a frame supporting the driving unit to be movable in a vertical direction; and
an actuator that moves the drive unit in a vertical direction,
the frame has a plurality of pillar portions extending in the vertical direction,
the drive unit further has a contact member that contacts the pillar portion.
9. The metal recovery device according to claim 8,
the pillar portion has:
a plate-shaped connecting plate, a main surface of which faces the drive unit; and
a pair of flanges extending from both ends in a horizontal direction of the main surface of the connecting plate toward the drive unit,
the contact member is provided in plurality and is in contact with the flange of each pillar portion,
each of the contact members has:
a first roller that rolls in a vertical direction at a distal end portion of the flange; and
and a second roller that rolls in the vertical direction on an inner surface of one of the flanges that faces the other flange.
10. The metal recovery apparatus according to claim 8 or 9,
the post is one of H-shaped steel and channel steel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326600.5U CN209890702U (en) | 2019-03-14 | 2019-03-14 | Metal recovery device |
| JP2020036136A JP6895668B2 (en) | 2019-03-14 | 2020-03-03 | Metal recovery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920326600.5U CN209890702U (en) | 2019-03-14 | 2019-03-14 | Metal recovery device |
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| CN209890702U true CN209890702U (en) | 2020-01-03 |
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| CN (1) | CN209890702U (en) |
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| JP2020147848A (en) | 2020-09-17 |
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