阅读说明：本技术 一种废铝回收用铝液除杂装置及其实施方法 (Aluminum liquid impurity removal device for waste aluminum recovery and implementation method thereof ) 是由 吴雪婷 于 2020-12-22 设计创作，主要内容包括：一种废铝回收用铝液除杂装置,包括底板,底板上端固接有两组支柱,支柱上端固接有除杂箱,隔板下端左右对称铰接有过滤板,空心轴下侧设置有转动组件,空心轴底部连接有进气组件,空心轴上部侧壁连通有多个空心搅拌杆,除杂箱上侧内部设有捞渣组件；通过除杂剂和铝液进行混合除去凝结杂质,同时通过进气组件将氮气排到铝液中,达到去除杂质的目的,除杂效果好,通过转动组件带动空心搅拌杆转动,对铝液进行搅拌混合,提高了除杂的效果,通过捞渣组件可将浮在铝液的表面的杂质物通过捞渣板带走,无需人工进行撇除,省时省力且避免安全隐患。通过过滤板对铝液进一步过滤除杂,通过过滤板往复振动,不但提高了过滤效果,而且避免过滤板上杂质堆积。(An aluminum liquid impurity removal device for aluminum scrap recovery comprises a bottom plate, wherein two groups of supporting columns are fixedly connected to the upper end of the bottom plate, an impurity removal box is fixedly connected to the upper ends of the supporting columns, filter plates are symmetrically hinged to the lower ends of the separating plates in a bilateral mode, a rotating assembly is arranged on the lower side of a hollow shaft, an air inlet assembly is connected to the bottom of the hollow shaft, a plurality of hollow stirring rods are communicated with the side wall of the upper portion of the hollow shaft, and a; mix through edulcoration agent and aluminium liquid and detach the impurity that condenses, arrange nitrogen gas to aluminium liquid through the subassembly that admits air simultaneously in, reach the purpose of getting rid of impurity, the edulcoration is effectual, drives hollow puddler through the runner assembly and rotates, stirs the mixture to aluminium liquid, has improved the effect of edulcoration, can take away the foreign matter that floats on the surface of aluminium liquid through dragging for the sediment subassembly, need not the manual work and skimming, labour saving and time saving just avoids the potential safety hazard. The aluminum liquid is further filtered and purified by the filter plate, and the filter plate vibrates in a reciprocating manner, so that the filtering effect is improved, and the impurity accumulation on the filter plate is avoided.)

1. The utility model provides a useless aluminium is retrieved with aluminium liquid edulcoration device, includes bottom plate (1), its characterized in that: the upper end of the bottom plate (1) is fixedly connected with two groups of pillars (2), the upper end of each pillar (2) is fixedly connected with an impurity removing box (3), the inner wall of each impurity removing box (3) is fixedly connected with a partition plate (4), blanking pipes (5) are arranged on two sides of each partition plate (4), valves are mounted on the blanking pipes (5), filter plates (6) are hinged to the lower ends of the partition plates (4) in a bilateral symmetry mode, hollow shafts (7) are rotatably connected to the middle portions of the lower walls of the impurity removing boxes (3) through the partition plates (4), rotating assemblies (8) are arranged on the lower sides of the hollow shafts (7), air inlet assemblies (9) are connected to the bottoms of the hollow shafts (7), a plurality of hollow stirring rods (10) are communicated with the side wall of the upper portion of each hollow stirring rod (7), a plurality of air nozzles (11) are communicated with the, arrange sediment groove (12) bottom rigid coupling and have spring (13), spring (13) upper end sets up in filter (6) lower extreme, edulcoration case (3) upside inside is equipped with drags for sediment subassembly (14), edulcoration case (3) left wall is installed cleaning door (15), the upper and lower wall of edulcoration case (3) communicates respectively has feeder hopper (16) and two to arrange material pipe (17).

2. The aluminum liquid impurity removal device for aluminum scrap recovery according to claim 1, which is characterized in that: rotating assembly (8) include first motor (801), first motor (801) set up in edulcoration case (3) bottom, first motor (801) output rigid coupling has driving gear (802), hollow shaft (7) downside outer wall is fixed to be cup jointed outer ring gear (803), outer ring gear (803) and first motor (801) meshing transmission.

3. The aluminum liquid impurity removal device for aluminum scrap recovery according to claim 1, which is characterized in that: the air inlet assembly (9) comprises an air inlet pipe (901), the air inlet pipe (901) is rotatably connected to the lower wall of the hollow shaft (7), the lower end of the air inlet pipe (901) is communicated with a connecting hose (902), a nitrogen bottle (903) is arranged at the upper end of the bottom plate (1), and the connecting hose (902) is communicated with the output end of the nitrogen bottle (903).

4. The aluminum liquid impurity removal device for aluminum scrap recovery according to claim 1, which is characterized in that: the slag fishing assembly (14) comprises a screw rod (1401), the screw rod (1401) is rotatably connected to the left wall and the right wall of an impurity removing box (3), the right end of the impurity removing box (3) is provided with a second motor (1402), the output end of the second motor (1402) is fixedly connected to the right end of the screw rod (1401), a nut block (1403) is screwed on the screw rod (1401), the lower end of the nut block (1403) is provided with an electric telescopic rod (1404), the telescopic end of the electric telescopic rod (1404) is fixedly connected with a slag fishing plate (1405), a sliding rod (1406) is fixedly connected to the left inner wall and the right wall of the impurity removing box (3), and the sliding rod (1406) penetrates through the upper side of the nut block.

5. The aluminum liquid impurity removal device for aluminum scrap recovery according to claim 1, which is characterized in that: the utility model discloses a trash box, including trash box (3), hollow shaft (7), protection box (18), hollow shaft (7) run through the protection box (18) and go up the lower wall, hollow shaft (7) are located protection box (18) inside and outside wall rigid coupling has first bevel gear (19), the wall all rotates about protection box (18) and is connected with bull stick (20), bull stick (20) other end rotates to be connected in trash box (3) lateral wall, both sides one end rigid coupling that bull stick (20) are close to mutually has second bevel gear (21), second bevel gear (21) and first bevel gear (19) meshing transmission, bull stick (20) outer wall rigid coupling has cam (22).

6. The aluminum liquid impurity removal device for aluminum scrap recovery according to claim 1, which is characterized in that: the lower end of the cleaning door (15) is hinged to the left wall of the impurity removing box (3), and a hasp is installed between the upper end of the cleaning door (15) and the left wall of the impurity removing box (3).

7. The aluminum liquid impurity removal device for aluminum scrap recovery according to claim 1, which is characterized in that: the left side and the right side of the upper end of the bottom plate (1) are provided with slag receiving boxes (23).

8. An aluminum liquid impurity removal device for aluminum scrap recovery and an implementation method thereof use the aluminum liquid impurity removal device for aluminum scrap recovery of any one of claims 1 to 7, and are characterized by comprising the following steps:

s1, firstly, throwing an impurity removing agent and aluminum liquid to be removed into an impurity removing box (3) through a feed hopper (16), and then discharging nitrogen into the aluminum liquid through an air inlet assembly (9);

s2, rotating the hollow stirring rod (10) through the rotating assembly (8), and stirring and mixing the impurity removing agent, nitrogen and aluminum liquid;

s3, taking away impurities floating on the upper surface of the aluminum liquid through a slag fishing plate (1405) through a slag fishing assembly (14), and subsequently cleaning the impurities by opening a cleaning door (15);

s4, the aluminum liquid after the stirring and mixing treatment falls on the filter plate (6) through the discharging pipe (5), the aluminum liquid is further filtered through the filter plate (6), impurities on the filter plate 6 are discharged through the slag discharging groove (12) and fall into the slag receiving box (23) for collection, and the aluminum liquid after the impurity removal is discharged through the discharging pipe (17).

Technical Field

The invention relates to the technical field of waste aluminum recovery processing equipment, in particular to an aluminum liquid impurity removal device for waste aluminum recovery and an implementation method thereof.

Background

Aluminum is a metal element, is a silver white light metal, and is malleable. The commodity is usually made into rod, sheet, foil, powder, strip and thread. An oxide film that prevents corrosion of the metal can be formed in humid air. The aluminum powder is heated in the air to burn violently and emit dazzling white flame. The aluminum element is second to oxygen and silicon in the earth crust, and is the most abundant metal element in the earth crust. The development of three important industries, namely aviation, building and automobile, requires the material characteristics to have the unique properties of aluminum and its alloy, which greatly facilitates the production and application of the new metal aluminum. The waste aluminum is a common name for recovering aluminum. The recovered aluminum is recycled after pretreatment.

At present, when aluminum liquid is prepared by recycling and processing waste aluminum, certain impurities and hydrogen exist in the aluminum liquid, and the subsequent processed products are carried with impurities and air holes without impurity removal treatment, so that the performance of aluminum and aluminum alloy is greatly influenced. In the prior art, the conventional method is to add nitrogen and an impurity removing agent into aluminum liquid, to float impurities upwards through the nitrogen, or to filter the impurities through a simple filter screen, but the impurity removing effect is poor, the nitrogen, the impurity removing agent and the aluminum liquid are mixed unevenly, the impurity removing effect is influenced, the aluminum liquid recovery quality is influenced, and the filtering efficiency is low; and the impurities floating on the upper layer still need to be skimmed by field construction personnel through other tools, so that the time and labor are wasted, the impurity removal efficiency is low, and the manual direct cleaning has great potential safety hazard due to higher temperature of the aluminum liquid. Therefore, we propose an aluminum liquid impurity removing device for aluminum scrap recovery and an implementation method thereof to solve the above problems.

Disclosure of Invention

The invention aims to provide an aluminum liquid impurity removal device for waste aluminum recovery and an implementation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

an aluminum liquid impurity removing device for aluminum scrap recovery comprises a bottom plate, wherein two groups of supporting columns are fixedly connected to the upper end of the bottom plate, an impurity removing box is fixedly connected to the upper end of each supporting column, a partition plate is fixedly connected to the inner wall of the impurity removing box, blanking pipes are arranged on two sides of the partition plate, valves are mounted on the blanking pipes, filter plates are symmetrically hinged to the lower end of the partition plate in a bilateral mode, a hollow shaft is rotatably connected to the middle of the lower wall of the impurity removing box, a rotating assembly is arranged on the lower side of the hollow shaft, an air inlet assembly is connected to the bottom of the hollow shaft, a plurality of hollow stirring rods are communicated with the side wall of the upper portion of the hollow shaft, a plurality of air nozzles are communicated with the outer wall of each hollow stirring rod, slag discharging grooves are formed in the left side wall and the right side wall of the impurity removing, the upper wall and the lower wall of the impurity removing box are respectively communicated with a feed hopper and two discharging pipes.

Preferably, aluminium liquid edulcoration device is used in aluminium scrap recovery, the runner assembly includes first motor, first motor sets up in edulcoration bottom of the case portion, first motor output rigid coupling has the driving gear, the fixed outer ring gear that has cup jointed of hollow shaft downside outer wall, outer ring gear and the transmission of first motor meshing.

Preferably, the aluminium liquid edulcoration device is used in aluminium scrap recovery, the subassembly that admits air includes the intake pipe, the intake pipe rotates to be connected in the hollow shaft lower wall, the intake pipe lower extreme intercommunication has coupling hose, the bottom plate upper end is equipped with the nitrogen pump, coupling hose communicates in the output of nitrogen pump.

Preferably, an aluminium liquid edulcoration device is used in aluminium scrap recycling, drag for the sediment subassembly and include the lead screw, the lead screw rotates to be connected in the left and right walls of edulcoration case, edulcoration case right-hand member is provided with the second motor, second motor output rigid coupling is in the lead screw right-hand member, the spiro union has the nut piece on the lead screw, nut piece lower extreme is provided with electric telescopic handle, the flexible end rigid coupling of electric telescopic handle has drags for the sediment board, the inner wall rigid coupling has the slide bar about the edulcoration case, the slide bar slides and runs through nut piece upside.

Preferably, aluminium liquid edulcoration device is used in aluminium scrap recovery, the back wall is provided with the protecting box before the edulcoration incasement chamber, the hollow shaft runs through the protecting box and goes up the lower wall, the hollow shaft is located the protecting box inside and outside wall rigid coupling has first bevel gear, the wall all rotates about the protecting box and is connected with the bull stick, the bull stick other end rotates to be connected in edulcoration case lateral wall, both sides the one end rigid coupling that the bull stick is close to mutually has second bevel gear, second bevel gear and first bevel gear meshing transmission, bull stick outer wall rigid coupling has the cam.

Preferably, the lower end of the cleaning door is hinged to the left side wall of the impurity removing box, and a hasp is installed between the upper end of the cleaning door and the left wall of the impurity removing box.

Preferably, the molten aluminum impurity removing device for recovering the aluminum scraps is characterized in that the left side and the right side of the upper end of the bottom plate are respectively provided with a slag receiving box.

An aluminum liquid impurity removal device for waste aluminum recovery and an implementation method thereof comprise the following steps:

s1, firstly, putting an impurity removing agent and aluminum liquid to be removed into an impurity removing box through a feed hopper, and then discharging nitrogen into the aluminum liquid through an air inlet assembly;

s2, rotating the hollow stirring rod through the rotating assembly, and stirring and mixing the impurity removing agent, the nitrogen and the aluminum liquid;

s3, taking away impurities floating on the upper surface of the aluminum liquid through a slag fishing plate by the slag fishing assembly, and subsequently cleaning the impurities by opening a cleaning door;

s4, the aluminum liquid after the stirring and mixing treatment falls on the filter plate through the blanking pipe, the aluminum liquid is further filtered through the filter plate, impurities on the filter plate 6 are discharged through the slag discharging groove and fall into the slag receiving box for collection, and the aluminum liquid after the impurity removal is discharged through the discharging pipe.

The invention has the beneficial effects that:

1. the device has reasonable structural design, removes condensed impurities by mixing an impurity removing agent and aluminum liquid, discharges nitrogen into the aluminum liquid through the air inlet assembly, meets oxide inclusions in the aluminum liquid, adsorbs the oxide inclusions on the surface of bubbles generated by the nitrogen, and floats upwards to the surface of the aluminum liquid along with the bubbles, so as to achieve the aim of removing the impurities, and the adsorption process achieves the aim of removing gas and slag according to the second law of thermodynamics, so that the impurity removing effect is good.

2. The first motor is started to drive the hollow stirring rod to rotate through the matching of the driving gear, the outer gear ring and the hollow shaft, and aluminum liquid is stirred and mixed, so that the impurity removing agent and nitrogen can be fully and uniformly mixed with the aluminum liquid, the impurity removing effect is further improved, and the subsequent recovery quality of the aluminum liquid is improved.

3. Can take away the foreign matter that floats on the surface of aluminium liquid through dragging for the sediment board through dragging for the sediment subassembly, the accessible is opened the clearance door and is cleared up the foreign matter on dragging for the sediment board, and the clearance is convenient, need not the manual work and skims off, labour saving and time saving, and the edulcoration is efficient, has avoided the artifical potential safety hazard that directly clears up the existence moreover.

4. The aluminum liquid is further filtered and purified through the filter plate, so that the impurity removal effect of the aluminum liquid is improved; the hollow shaft rotates simultaneously through the cooperation of first bevel gear, second bevel gear, bull stick, cam and spring for filter reciprocating vibration has not only improved the filter effect of filter, avoids impurity to pile up on the filter moreover, and the practicality is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used for describing the embodiments are briefly introduced below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a rotating assembly according to the present invention;

FIG. 3 is a schematic view of the air intake assembly of the present invention;

fig. 4 is a schematic structural view of the slag dragging assembly of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-bottom plate, 2-support column, 3-trash box, 4-baffle, 5-blanking pipe, 6-filter plate, 7-hollow shaft, 8-rotating component, 801-first motor, 802-driving gear, 803-external gear ring, 9-air inlet component, 901-air inlet pipe, 902-connecting hose, 903-nitrogen bottle, 10-hollow stirring rod, 11-air nozzle, 12-slag discharging groove, 13-spring, 14-slag fishing component, 1401-screw rod, 1402-second motor, 1403-nut block, 1404-electric telescopic rod, 1405-slag fishing plate, 1406-sliding rod, 15-cleaning door, 16-feed hopper, 17-discharging pipe, 18-protective box, 19-first bevel gear, 20-rotating rod, 21-second bevel gear, 22-cam, 23-slag receiving box.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to the attached drawings 1-4, the embodiment is an aluminum liquid impurity removing device for aluminum scrap recovery and an implementation method thereof, the aluminum liquid impurity removing device comprises a bottom plate 1, two groups of pillars 2 are fixedly connected to the upper end of the bottom plate 1, an impurity removing box 3 is fixedly connected to the upper end of the pillars 2, a partition plate 4 is fixedly connected to the inner wall of the impurity removing box 3, blanking pipes 5 are respectively arranged on two sides of the partition plate 4, valves are arranged on the blanking pipes 5, filter plates 6 are symmetrically hinged to the lower end of the partition plate 4 in a left-right mode, a hollow shaft 7 is rotatably connected to the middle of the lower wall of the impurity removing box 3, a rotating assembly 8 is arranged on the lower side of the hollow shaft 7, an air inlet assembly 9 is connected to the bottom of the hollow shaft 7, a plurality of hollow stirring rods 10 are communicated to the upper side wall of the hollow shaft 7, a plurality of air nozzles 11 are, edulcoration case 3 upside inside is equipped with drags for sediment subassembly 14, and edulcoration case 3 left wall is installed and is cleared up door 15, and the upper and lower wall of edulcoration case 3 communicates respectively has feeder hopper 16 and two to arrange material pipe 17.

The rotating assembly 8 comprises a first motor 801, the first motor 801 is arranged at the bottom of the trash box 3, an output end of the first motor 801 is fixedly connected with a driving gear 802, an outer gear ring 803 is fixedly sleeved on the outer wall of the lower side of the hollow shaft 7, and the outer gear ring 803 is in meshing transmission with the first motor 801.

The air inlet assembly 9 comprises an air inlet pipe 901, the air inlet pipe 901 is rotatably connected to the lower wall of the hollow shaft 7, the lower end of the air inlet pipe 901 is communicated with a connecting hose 902, the upper end of the bottom plate 1 is provided with a nitrogen bottle 903, and the connecting hose 902 is communicated with the output end of the nitrogen bottle 903.

The slag fishing component 14 comprises a screw 1401, the screw 1401 is rotatably connected to the left wall and the right wall of the impurity removing box 3, the right end of the impurity removing box 3 is provided with a second motor 1402, the output end of the second motor 1402 is fixedly connected to the right end of the screw 1401, a nut block 1403 is screwed on the screw 1401, the lower end of the nut block 1403 is provided with an electric telescopic rod 1404, the telescopic end of the electric telescopic rod 1404 is fixedly connected with a slag fishing plate 1405, the left inner wall and the right inner wall of the impurity removing box 3 are fixedly connected with a sliding rod 1406, and.

A protection box 18 is arranged on the front and rear walls of an inner cavity of the impurity removing box 3, the hollow shaft 7 penetrates through the upper wall and the lower wall of the protection box 18, a first bevel gear 19 is fixedly connected to the inner wall and the outer wall of the protection box 18 of the hollow shaft 7, rotating rods 20 are rotatably connected to the left wall and the right wall of the protection box 18, the other end of each rotating rod 20 is rotatably connected to the side wall of the impurity removing box 3, a second bevel gear 21 is fixedly connected to the end, close to the rotating rods 20, of each of the two sides, a cam 22 is fixedly connected to the; hollow shaft 7 rotates and drives first bevel gear 19 simultaneously and rotates, drives both sides bull stick 20 and cam 22 simultaneously through the second bevel gear 21 of both sides and rotates, but through cam 22 intermittent type nature to 6 strikes, through spring 13 mating reaction, can make 6 reciprocating vibration of filter, has not only improved the filter effect of filter 6, avoids impurity to pile up on the filter 6 moreover.

The lower end of the cleaning door 15 is hinged to the left wall of the impurity removing box 3, a hasp is installed between the upper end of the cleaning door 15 and the left wall of the impurity removing box 3, and the cleaning door 15 can be opened and closed conveniently.

The left side and the right side of the upper end of the bottom plate 1 are provided with the slag receiving boxes 23, and impurities discharged from the slag discharging groove 12 can be collected and processed in a unified mode.

The working principle of the invention is as follows:

when using this device, at first throw into edulcoration case 3 through feeder hopper 16 with the edulcoration agent with the aluminium liquid of treating the edulcoration, mix through edulcoration agent and aluminium liquid and detach the condensation impurity, simultaneously through nitrogen cylinder 903 with nitrogen gas through connecting hose 902 and intake pipe 901 discharge to hollow shaft 7 inner chamber, finally discharge to aluminium liquid through air cock 11 on the hollow puddler 10, meet with the oxide inclusion in the aluminium liquid, the oxide inclusion main component is Al2O3 and hydrogen, the surface of the bubble that the oxide inclusion adsorbed the nitrogen gas production to along with the bubble come-up to the surface of aluminium liquid, thereby reach the mesh of getting rid of impurity, above adsorption process is according to thermodynamics second law, thereby reach the mesh of degasification slagging-off, the edulcoration is effectual.

Start first motor 801 and drive driving gear 802 and rotate to drive hollow shaft 7 through outer ring gear 803 and rotate, and then drive hollow puddler 10 and rotate, stir the mixture through hollow puddler 10 to aluminium liquid, make that edulcoration agent and nitrogen gas can be abundant and even mix with aluminium liquid, further improved the effect of edulcoration, improve the follow-up recovery quality of aluminium liquid.

Drive through electric telescopic handle 1404 and drag for sediment board 1405 and descend and stretch into aluminium liquid surface certain distance, then start second motor 1402 and drive lead screw 1401 and rotate, thereby drive nut block 1403 and move left along slide bar 1406, and then can drive and drag for sediment board 1405 and move left, can take away the impurity thing that floats on the surface of aluminium liquid through dragging for sediment board 1405, the clearance door 15 clearance is opened to follow-up accessible is dragged for the impurity thing on dragging for sediment board 1405, it is convenient to clear up, need not the manual work and skimming, time saving and labor saving, it is efficient to remove the impurity, and the potential safety hazard that artifical direct clearance exists has been avoided.

On the aluminium liquid that mixed processing finishes falls to filter 6 through unloading pipe 5, further filters aluminium liquid through filter 6, can keep off impurity on filter 6, finally fall to through row's cinder notch 12 discharge and collect in connecing sediment case 23, and aluminium liquid passes filter 6 after the edulcoration and falls to edulcoration case 3 bottoms, finally discharges through row's material pipe 17, further filters the edulcoration through filter 6, has improved the edulcoration effect of aluminium liquid.

Hollow shaft 7 rotates and drives first bevel gear 19 simultaneously and rotates, drives both sides bull stick 20 and cam 22 simultaneously through the second bevel gear 21 of both sides and rotates, but through cam 22 intermittent type nature to 6 strikes, through spring 13 mating reaction, can make 6 reciprocating vibration of filter, has not only improved the filter effect of filter 6, avoids impurity to pile up on the filter 6 moreover, and the practicality is strong.

The electrical components are externally connected with a power supply, and the control mode is common knowledge, so that the detailed description is omitted in the specification.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In addition, although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such descriptions are merely for clarity reasons, and those skilled in the art should make the description as a whole, and the embodiments in each embodiment may be appropriately combined to form other embodiments that can be understood by those skilled in the art.