KR101950029B1 - Regenerative apparatus for waste molding sand and closed-loop sand reclaim type casting manufacturing system using of the same - Google Patents

Abstract

The present invention relates to a reclaiming technology of a waste ladle, which is capable of collecting, regenerating and regenerating sand for casting from a production site into a closed loop structure, and a sand reclamation casting manufacturing system using the same.
The present invention relates to a washing machine comprising a washing means for receiving a waste paper and washing it together with a washing liquid, a drying means for receiving and drying the washed washing yarn from the washing means, And a storage and supply means for supplying the regenerated used yarn to a molding apparatus for producing a mold, wherein the cleaning means includes a first cleaning tank for cleaning and cleaning the waste plastics with the cleaning liquid by a blade rotating around the first rotation axis, And a second cleaning tank communicating with the first cleaning tank to receive the cleaning yarn washed and washed first and secondly cleaning the received cleaning yarn and transferring the cleaning yarn in one direction simultaneously with the cleaning, The tank has a second rotation axis corresponding to a transverse direction length of the second washing tank and having a rotation center in a direction intersecting with the first rotation axis, A plurality of blade assemblies provided in a plurality of the second rotary shafts and partially overlapping each other, wherein the blade combination includes a moving blade forming a relatively small turning radius around the rotating shaft, Are provided so as to intersect with each other.
According to the thus configured waste grinding machine recycling apparatus, the waste grinding sand produced during the manufacturing process of the casting is recovered and recovered directly at the production site of the casting, and the recovered waste grinding sand is supplied as a raw material for the production of the mold, A very high casting production system can be provided. In addition, since the utilization of the waste maggot is improved as described above, the consumption of the yarn is reduced and the cost of the yarn is reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a recycling system for recycled casting yarns,

The present invention relates to a reclaiming technology of a waste ladle, which is capable of collecting, regenerating and regenerating sand for casting from a production site into a closed loop structure, and a sand reclamation casting manufacturing system using the same.

Casting is a process in which a material is heated at a temperature higher than its melting point to form a liquid phase, and a liquid material is injected into a mold to cure the mold. The mold used for casting is a mold, The products made from these are called castings.

FIG. 1 is a view for schematically explaining a general casting production process.

Referring to the drawings, a process for manufacturing a casting includes a molding process for manufacturing a mold or a mold and a core, a molding process for forming a space in which a liquid material is injected by molding the produced mold or mold and core, An injection process in which the molten material is injected into the formed space, a mold disassembly process in which the injected material is solidified and then the mold is separated, and a process of post-processing the casting separated from the mold.

Meanwhile, the molding process and the molding process are performed by a molding machine.

The molding machine includes a hopper for accommodating a yarn, a kneader for mixing the yarn and the binder, a blowing head for injecting the kneaded yarn produced by the kneader into the mold, and a mold for molding the mold, .

Then, the molds produced by the molding machine are transferred to the casting apparatus, and the casting is performed through the injection process in which the molten material is injected into the molds.

After the molding is completed, the hardening process of the casting is performed, and the hardened casting is separated through the mold disassembling process and then transferred to the desiccator.

In the above-described desiccator, the wastepaper is removed from the casting by a method such as vibration isolation or hemming, and the casting after the removal of the wastepaper is finished by the post-treatment such as washing and drying.

On the other hand, as the industry grows in height and the quality requirement for the main products increases, a high-quality molding material suitable for the material of the main product is required. However, since there is a limit to the domestic production of high-quality foundry sand, the dependence of imported foundry sand is increased and the price of foundry sand is increasing.

In order to solve the above-described problems, various techniques for recovering waste maggot have been researched and developed.

For example, Korean Patent Registration No. 10-1428424 entitled " Casting Process Processing System for Casting " proposes a casting processing system for cooling and reprocessing a casting process used in casting.

Korean Patent No. 10-206607 entitled " Method and Apparatus for Recycling Spent Waste < RTI ID = 0.0 > I " < / RTI > has disclosed a technique for washing waste paper of a casting mold after a mold work has been completed and separating the waste paper and adhesive, Korean Patent No. 10-1173053 entitled " Ultrasonic Waste Removal Device for Waste Removal < Desc / Clms Page number 2 > " discloses a method for minimizing the number of surface treatments by inducing interface separation between a molding sand and a binder using ultrasound And a system for enhancing process efficiency by integrating a multi-step process is disclosed.

Korean Patent No. 10-0760646 entitled " Method for manufacturing reclaimed sand using a waste maggot, " discloses a method for manufacturing recycled sand by recycling waste paper sandwiched by the chemical reaction of sodium silicate and CO ₂ gas in the production of a casting mold. And various types of reclaiming technologies for reclaiming wastes have been researched and developed.

However, since the process of recovering waste from the manufacturing process of castings is difficult and limited due to the environmental conservation law, it also takes a lot of cost in the regeneration process. Therefore, most of the waste products are recovered through specialized waste disposal companies in Korea, .

KR 10-1428424 B1 KR 10-206607 B1 KR 10-1173053 B1 KR 10-0760646 B1

It is an object of the present invention to provide a recycled waste rubber material recycling apparatus which can continuously clean and dry a waste rubber material, and then store and re-supply it as a raw material for producing a mold.

Another object of the present invention is to provide a recycling waste recycling casting which can effectively reduce the cost of yarn by regenerating the recovered waste yarn recovered at the manufacturing site of the casting using the above-mentioned waste reclaiming machine, And to provide a manufacturing system.

The present invention relates to a washing machine comprising a washing means for receiving a waste maggot and washing it together with a washing liquid, drying means for supplying and drying the washing yarn washed from the washing means, regeneration means for receiving the dried regeneration means through the drying means, Wherein the cleaning means includes a rotating shaft that rotates inside the washing tank and a plurality of blade assemblies that are mounted on the rotating shaft in plural, The blade combination is characterized in that the moving blade is formed so as to contact with a relatively large amount of the waste ash and the transfer delay blade formed so as to contact with a relatively small amount of the waste paper is formed to have different cleaning and transfer coverage around the rotation axis do.

The moving blade forms a relatively narrow turning radius around the rotation axis, and is provided in pairs that are symmetrical in the diagonal direction.

The movement delaying blade forms a rotation region at a position adjacent to the inner surface of the cleaning tank and is provided in a pair symmetrical in the diagonal direction so as to intersect with the movement blade about the rotation axis.

In another aspect of the present invention, there is provided a washing machine comprising a first washing tank in which a wastepaper is washed and washed together with a washing liquid by a blade rotating about a first rotating shaft, and a washing yarn which is communicated with the first washing tank, And a second cleaning tank for conveying the cleaning yarn in one direction simultaneously with the cleaning of the housed cleaning yarn, wherein the second cleaning tank corresponds to the lateral length of the second cleaning tank, And a plurality of blade assemblies provided on the second rotation shaft and having a plurality of blades overlapping with each other, and a cleaning blade for cleaning the cleaning blade, The drying means and the regenerated sludge dried through the drying means are accommodated, and a storage for supplying the regenerated sieves to the molding apparatus for producing a mold And a supply means, wherein the storage and supply means includes a regenerated yarn receiving portion in which regenerated yarns are accommodated, a yarn receiving portion formed at one side of the regenerated yarn receiving portion, and a regenerated yarn receiving portion and a yarn receiving portion And a mixing accommodating portion into which the regenerated yarn and the yarn are introduced together.

The washing apparatus according to claim 1, further comprising a washing liquid tank for supplying a washing liquid to the first washing tank and the second washing tank, and a circulation pump is used to circulate the washing liquid between the first washing tank and the washing liquid tank, And a flow path is further formed.

The blade installed at the first rotation axis includes a first blade formed to be inclined toward the first rotation axis and a second blade disposed in a direction intersecting the first blade.

According to another aspect of the present invention, there is provided a casting system for casting a casting produced by using casting sand to produce a casting, comprising at least one of a shaping apparatus for producing a casting mold, The recovered wastepaper is washed using a washing means and dried by means of a drying means to produce a regenerated yarn. The regenerated yarn is supplied to the regeneration apparatus by a storage and feeding means, And a waste sand recovery device. The storage and supply means includes at least a defective waste yarn of the regenerated yarn when supplying the total amount of the foundry sand required for the production of the mold, thereby supplying the foundry sand mixed with the regenerated yarn and the yarn.

According to another aspect of the present invention, there is provided a casting system comprising: a molding device for mixing a sand and a binder to produce a kneaded yarn and for producing a mold or a core using the kneaded yarn; A casting device for casting a casting material by injecting a casting material into a casting mold, a degreasing device for separating the casting wares from the casting molded from the casting device, and at least waste plastics recovered from the shaping device or the degreasing device, Wherein the sand supplied to the molding apparatus is used to produce a regenerated yarn by supplying the regenerated yarn to the molding apparatus by using a means for storing and supplying the regenerated yarn, The storage amount of the regenerated yarn accommodated in the storing and supplying means is required If the total amount of sand is equal to or more than the total amount of sand, the total amount is supplied to the regenerated yarn, and if the amount of regenerated yarn is less than the total amount of sand required, the deficiency of regenerated yarn is mixed with yarn.

The regeneration yarn receiving portion is provided with a regeneration yarn accommodating portion in which the regeneration yarn is accommodated. The regeneration yarn receiving portion and the yarn regulating portion are communicated with the regeneration yarn receiving portion and the yarn receiving portion, And a sand supply unit for supplying the regenerated yarn and the yarn housed in the mixed storage unit to the molding apparatus is further provided.

According to another aspect of the present invention, there is provided a waste reclaiming machine according to the present invention, comprising a washing means for washing a waste paper with a washing liquid, a drying means for receiving and drying the washed washing material from the washing means, And a storage and supply means for storing the completed regenerated yarn and supplying the regenerated yarn to a molding device for producing a mold, wherein the storing and supplying means includes a regenerated yarn receiving portion for receiving the regenerated yarn, A yarn receiving portion formed in the yarn receiving portion and including a yarn receiving portion communicating with the yarn receiving portion and the yarn receiving portion so that the regenerated yarn and the yarn are introduced together, And a sand supplying means for supplying the sand to the apparatus.

Wherein the cleaning means includes a rotating shaft that rotates inside the cleaning tank and a plurality of blade assemblies that are mounted on the rotating shaft in a plurality, each of the blade assemblies being configured to contact a relatively large amount of the waste paper, And the movement delay blades formed to contact with a small amount of the waste plucking yarn are formed to have different cleaning and transfer coverage around the rotation axis.

The washing tank includes a first washing tank for washing and washing the wastepaper with the washing liquid, a washing tank for washing and washing the first washing tank and communicating with the first washing tank, And a second cleaning tank for transferring the cleaning yarn to the second cleaning tank, wherein a rotary shaft on which the plurality of blade assemblies are installed is provided in the second cleaning tank.

And a piercing plate is provided between the first washing tank and the second washing tank for limiting the particle size of the washing yarn supplied to the second washing tank.

According to the present invention, it is possible to provide a casting manufacturing system having a very high utilization rate of the waste and foundry yarn, by collecting and recycling the waste ash generated in the manufacturing process of the casting directly from the casting production site and supplying the recovered waste ash as a raw material for producing the casting mold can do.

In addition, since the utilization of the waste maggot is improved as described above, the consumption of the yarn is reduced and the cost of the yarn is reduced.

In addition, the present invention includes a waste grinding machine recycling apparatus capable of continuously producing a waste grinding sand, and the waste grinding machine recycling apparatus has a blade structure for increasing the residence time during washing and more agitation The cleaning efficiency can be improved and the productivity of the regenerated yarn can be further improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view for explaining a general casting production process. FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a closed-
3 and 4 are views for explaining the structure of a molding apparatus which is a main constituent of the present invention.
Fig. 5 is a view showing one embodiment of a blade pattern which is a main constitution of the shaping apparatus shown in Figs. 3 and 4. Fig.
6 is a view showing a cooling water circulation path of the molding apparatus shown in Figs. 3 and 4. Fig.
7 is a photograph showing a casting process performed in the present invention.
8 is a photograph showing an embodiment of a dressing device according to the present invention.
9 is a view for explaining a closed loop structure of sand according to a waste sand and loamy yarn reproduction device as a main constituent of the present invention.
FIGS. 10 to 12 are diagrams for explaining the detailed structure of a waste rubber and material reproduction apparatus as a main constituent of the present invention. FIG.
13 shows one embodiment of the drying means according to the present invention.
FIG. 14 is a view showing one embodiment of storage and supply means which is a main constituent of the present invention; FIG.
15 is a view showing another embodiment of the storage and supply means which is a main constituent of the present invention;

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept. Also, in this specification and claims, " or / and " are defined to include each and every one or more combinations of the mentioned items.

2 is a schematic view showing a circulation structure of a closed loop yarn regeneration casting production system according to the present invention.

Referring to the drawings, the present invention recovers and recycles waste produced in the manufacturing process of a casting and re-supplies it for the production of a mold, thereby forming a closed loop of sand.

To this end, in the present invention, the waste plastics yarn can be recovered from the molding apparatus 100 for producing a mold or a core.

3 and 4 are views for explaining the structure of a molding apparatus which is a main constituent of the present invention. Fig. 5 shows an embodiment of a blade pattern which is a main constitution of the molding apparatus shown in Figs. 3 and 4 Shown in Fig.

Referring to these figures, in the present embodiment, the molding apparatus 100 includes a plurality of hoppers to which raw materials are supplied for producing a mold or a core, a kneader 120 for mixing the supplied raw materials to enable continuous discharge, A blower head 140 and a blowing plate 150 for filling a kneading yarn discharged from the kneader 120 into a mold 190 and a blowing head 150 for blowing a hot air blower 150 for curing a mold or a core manufactured by the mold 190. [ And a control unit 180 for controlling the respective components.

The plurality of hoppers are respectively divided into a sand supply hopper 112, a promoter supply hopper 114 and a binder supply hopper 116. A discharge port communicates with the kneader 120 to supply air Exposure can be reduced.

The kneader 120 mixes raw materials contained therein to produce a kneaded yarn and successively discharges the kneaded yarn. The kneader 120 is formed to have a longer length in the lateral direction than the height, And mixed while being transported in the transverse direction.

A kneading shaft 121 rotated by a kneading motor 122 and a kneading blade group 126 formed on the outer surface of the kneading shaft 121 are included in the inner space of the kneading machine 120.

The kneading blade group 126 is formed of a plurality of kneading blades and is formed to have various sizes and is arranged to have a predetermined slope with respect to the axial direction of the kneading shaft 121.

That is, the kneading blade group 126 controls the mixing and feeding of the raw materials by using the inclination and the size of the kneading blades, and has a uniform blade arrangement pattern for this purpose.

In the present embodiment, the kneading blades 126 are divided into six installation spaces in the longitudinal direction, as shown in FIG. 3, and are arranged in the respective installation spaces according to their sizes and slopes.

In detail, among the six installation spaces of the kneading shaft 121, the installation space 1 and the installation space 4 form a transfer pattern for transferring the greatest distance while stirring the raw material.

The installation space (1) and the installation space (4) are located at the positions where the kneading shaft (121) is divided, and the blades having the longest length and the inclination of 45 degrees are arranged at regular intervals, A2 " in the installation space " 4 "

Here, the blade corresponding to "A1" "A2" is formed so as to be adjacent to the inner surface of the kneader 120 at one end thereof, effectively transporting the raw material, and is hereinafter referred to as a "feed blade" for convenience of explanation.

On the other hand, in the remaining installation spaces 1 to 6 where the transfer blades are installed, a plurality of blades having a shorter length than the transfer blades and having various inclination angles are formed, and this is referred to as a 'kneading blade' for convenience of explanation.

The kneading blade is configured for effective stirring of the kneaded yarn in a limited kneading space, and is formed at various inclination angles in the range of 30 to 75 degrees in the present embodiment.

The kneading blade includes a delay pattern in which a slope is formed in a direction opposite to the conveying blade, and a stirring pattern in which a slope is formed in the same direction. In any one of the six installation spaces, By providing the kneading blade, the conveyance of the kneaded yarn can be assisted.

That is, the kneading blade installed in the same direction as the conveying blade has a difference in moving distance of the kneading yarn according to the inclination, and the kneading blade provided in the reverse direction of the conveying blade increases the kneading property between the yarn and the binder and / And performs the function of holding the kneading yarn without advancing the kneading yarn in the conveying direction.

Therefore, according to the present embodiment, the exposure to the outside air can be reduced in the kneading process, and the kneading yarn of good quality can be continuously discharged as the mixing and transferring of the raw materials proceed continuously.

In addition, a cleaning means 124 is provided at one side of the kneader 120 to be able to open and close to clean the internal space.

The blower head 140 connected to the kneader 120 and filled with the kneading yarn is selectively brought into close contact with one end of the kneader 120 to reduce the exposure of the outside air, .

The discharge unit of the kneader 120 is formed with a discharge unit (not shown) having a size corresponding to the upper end of the blower head 140, and the upper end of the blower head 140 is in close contact with the discharge unit The inlet portion is formed to include a predetermined buffer member.

The blower head 140 is further provided at its lower end with a blowing plate 150 for blowing the kneaded yarn filled in the blower head 140 into the mold 190. When the blower head 140 is filled with the kneading yarn, the blower head 140 moves to the upper side of the mold 190 and then the kneading yarn is filled.

After the filling of the kneaded yarn is completed, the blower head 140 moves again to the lower side of the kneader 120, and the hot air head 160 connected to the blower head 140 through the connection frame 172 is moved to the upper side of the mold 190 .

For this purpose, the blower head 140 and the hot air head 160 are connected to each other through a first connection frame 172 and are rotatable together. The center of the first connection frame 172 And a second connection frame 174 connected to the fixed shaft 171.

A head replacement cylinder 176 is further provided at one side of the second connection frame 174 to allow the blower head 140 and the hot air head 160 to move along the fixing shaft 171 As shown in FIG.

The mold 190 includes a stationary mold 192 for holding the stationary position and a movable mold 194 for selectively engaging the stationary mold 192 with the movable mold cylinder 196. The stationary mold 192 has a predetermined height And is supported by a mold support frame 132 to hold the mold.

In the molding machine 100 having the above-described structure, the kneading machine 120 is long in the lateral direction, that is, in the lateral direction, as described above, so that a sufficient kneading time can be secured. So that the supply amount of the kneaded yarn can be adjusted more easily.

The total height of the molding apparatus 100 according to the present invention is determined by the height of the mold 190 from the supporting height of the blowing head 140 and the blowing plate 150 And the height of the kneader (120).

Therefore, the yarn can be supplied to the sand hopper 112 without the air pump, thereby preventing generation of dust due to supply of the yarn.

In the molding apparatus 100 according to the present invention, a fluid flow path for temperature and humidity control is formed.

Fig. 6 is a view showing a cooling water circulation path of the molding apparatus shown in Figs. 3 and 4. Fig.

Referring to the drawing, a cooling water inlet hole 120a through which cooling water flows into the kneader 120 is formed adjacent to a position where the raw material is supplied, and a cooling water discharging hole 120b is formed in a portion adjacent to a position where the kneader is discharged. .

The cooling water inflow hole 120a and the cooling water discharge hole 120b are connected to each other through a cooling channel in which the entire kneader 120 is wound and a circulation pump (not shown) is further provided at one side of the cooling channel The circulation path of the cooling water is formed in the kneader 120. [

Accordingly, it is possible to control the temperature of the inner space in the kneading process by circulating the cooling water through the circulation path of the cooling water as described above, and further includes a temperature sensor (not shown) at one side of the inner space of the kneader 120, The temperature and humidity information can be more effectively managed by receiving the temperature sensing information through the controller 180. [

The circulation path of the cooling water is also formed in the blower head 140 and the blowing plate 150.

That is, even in the case of the blower head 140, the cooling water inflow hole 140a and the cooling water discharge hole 140b are formed so that the cooling passage is formed to take up the blower head 140 and connected to the circulation pump .

5, the cooling water inflow hole 150a and the cooling water discharge hole 150b are formed, and the circulation path of the cooling water is formed by using the cooling passage and the circulation pump .

As the cooling water circulation path is formed as described above, in the molding apparatus 100 according to the present invention, the temperature control is performed through the flow control of the fluid during the series of processes for producing the kneaded yarn and for filling the mold 190 with the kneaded yarn. And the kneading yarn can be continuously supplied while minimizing the exposure of the outside air, so that there is an advantage that continuous production of a high-quality mold or core can be achieved.

In the molding apparatus 100 having the above-described structure, waste paper may be generated in the course of filling the mold 190 with the kneaded yarn, and such waste paper is collected and transferred to the waste rubber reclaiming apparatus 700 to be described below.

Meanwhile, the mold or core produced through the molding apparatus 100 is transferred to the casting apparatus 200 to perform a casting process. FIG. 7 is a photograph showing a casting process performed in the present invention. 8 is a photograph showing an embodiment of the dressing apparatus according to the present invention.

The casting apparatus 200 forms the molten metal M using the heating furnace 210 and the molten metal bucket 220 and injects the molten metal M into the molten mold 240 After that, it is hardened to produce castings. Then, the casting produced through the above-described casting process is transferred to the dressing device 300 together with the casting mold.

The degreasing device 300 is for separating the casting by removing the wastepaper from the casting conveyed together with the casting mold. The separating device 300 includes a main frame 320 forming a degassing part 310 for separating the casting with the casting attached thereto, A vibration motor 340 provided at one side of the main frame 320 to generate vibration and a buffer member 360 provided at one side of the main frame 320 for performing vibration damping .

Meanwhile, the casting material separated from the waste sand in the deslagging apparatus 300 is transferred to the post-treatment apparatus 10 (see FIG. 1) to form a casting product through washing and drying.

The waste chippers separated from the casting are recovered in the same manner as the molding apparatus 100 and transferred to the waste rubber reclaiming apparatus 700. To this end, a transferring means is additionally provided between the desorbing apparatus 300 and the waste rubber recycling apparatus 700 .

The conveying means may be configured to include a conveying motor, a conveying pulley, and a conveyor belt. One side of the conveyor belt is positioned below the delasers 310 so that the waste sand falling from the delasers 310 is seated And the other side is connected to the waste material inflow part 410 (see FIG. 10) of the waste rubber reclaiming apparatus 700 to be described below, so that the waste rubber product produced in the discharging process can be automatically recovered.

The reclaimed yarn recovered from the molding apparatus 100 and / or the desorber 300 described above is washed and dried in the waste reclaiming and regeneration apparatus 700 for regeneration, and then the regenerated yarn is stored.

FIG. 9 is a view for explaining a closed loop structure of sand according to a waste sand recovery device according to the present invention. FIGS. 10 to 12 show a detailed structure of a waste sand recovery device, The drawings are shown.

Referring to these drawings, a waste sand recovery device 700 according to the present invention is such that waste sand recovered from the molding apparatus 100 and / or the degreasing apparatus 300 is supplied to the cleaning means 400, Is washed through the means 400 and then dried through the drying means 500 to produce regenerated yarn and the produced regenerated yarn is transferred to the storing and feeding means 600 to be supplied for the production of the mold.

In detail, the cleaning unit 400 performs multiple washing using the first washing tank 420 and the second washing tank 440 to remove the wastepaper that flows through the waste-water inflow unit 410.

A predetermined amount of the cleaning liquid is filled in the first and second cleaning tanks 420 and 440, and the cleaning liquid is supplied to the first and second cleaning tanks 420 and 440 by the cleaning liquid tank 460.

In detail, in this embodiment, the cleaning means 400 is in communication with the first cleaning tank 420, the second cleaning tank 440 and the cleaning liquid tank 460, and the second cleaning tank 440 communicates with the cleaning liquid tank 440. [ (460) and the first cleaning tank (420).

10, the second cleaning tank 440 is positioned below the first cleaning tank 420 and the cleaning liquid tank 460, and the first cleaning tank 420 and the cleaning liquid tank 460 And the second washing tank 440 is formed to have a longer length in the transverse direction than the height.

Further, a cleaning yarn discharging unit 480 for discharging the cleaned yarn is further formed at a lower side of the second cleaning tank 440, and the cleaning yarn discharging unit 480 is selectively discharged A discharge valve 482 is provided.

Meanwhile, the upper part of the waste water inflow part 410 is formed to have a relatively large diameter to induce smooth inflow of the waste water, and the lower end communicates with the first washing tank 420. That is, the waste chimney yarn flowing into the waste chimney inflow section 410 is received in the first washing tank 420.

As described above, the cleaning liquid tank 460, the first cleaning tank 420 and the second cleaning tank 440 are communicated with each other to maintain the state where the cleaning liquid is filled, and the cleaning liquid tank 460, The cleaning tanks 440 are provided at the corresponding heights so that the filled cleaning liquid has the same water level.

In this state, the wastepaper which flows into the waste water inflow part 410 is received in the first washing tank 420 together with the washing liquid, and is then sucked by the blades provided in the first washing tank 420 , disintegration) and primary wash.

The first cleaning motor 421 is connected to the first reduction gear 423 to generate the first cleaning motor 421. The first cleaning motor 421 is provided on the outer side of the first cleaning tank 420 to generate a rotational force, Thereby forming a motor portion.

The first reduction gear 423 is configured to transmit the rotation speed of the first cleaning motor 421 to the blade by reducing the rotation speed of the first rotation motor 421. The first reduction gear 423 is connected to the first rotation shaft 422 and the first extension shaft 424, And is connected to a plurality of blades.

The plurality of blades include a first blade 425 and a second blade 426, which are provided on both sides of the first rotation axis 422, respectively.

The first blade 425 is formed to be inclined toward the first rotation axis 422 to collect the wastewater into a central portion of the first washing tank 420 while disintegrating and washing the waste wastewater, The cleaning blade 426 is disposed in a direction intersecting with the first blade 425 and is conveyed to the lower portion of the first cleaning tank 420 while the wastepaper is disintegrated and cleaned. In this embodiment, the second blade 426 is disposed horizontally with the bottom to more effectively perform the lower feed.

A pier plate 450 is further provided between the first and second cleaning tanks 420 and 440. The perforated plate 450 is disintegrated to a predetermined size or less in the first washing tank 420 and the primary washing tank 440 is fed to the second washing tank 440.

The second cleaning tank 440 is configured to more effectively clean the primary cleaning yarn passed through the perforated plate 450 in a direction in which the cleaning space intersects with the first cleaning tank 420, The length in the transverse direction is longer than the height.

To this end, the second washing tank 440 is provided with a second rotating shaft 442 rotated by the second washing motor 441 and the second rotating shaft 442 to move the washing yarn while performing second washing A plurality of blades are provided.

The second cleaning motor 441 is provided on the outer side of the second cleaning tank 440 and is connected to the second rotation shaft 442 through the second reduction gear 443.

The second reduction gear 443 is used to reduce the rotation speed of the second rotation shaft 442 by using the gear ratio with the second cleaning motor 441 and may be coaxially coupled with the second rotation shaft 442.

The blade coupled to the second rotating shaft 442 is divided into a moving blade 446 having a relatively small turning radius and a moving delay blade 444 having a larger turning radius than the moving blade 446.

The moving blade 446 is formed in a sickle shape having a predetermined radius of curvature so as to perform smooth transport of the cleaning yarn together with cleaning of the first cleaning yarn.

The moving blades 446 are disposed symmetrically with respect to each other in the diagonal direction about the second rotating shaft 442, and the ends of the moving blades 446 are positioned adjacent to the outer surface of the second rotating shaft 442.

The movement delay blade 444 is configured to delay the movement of the cleaning yarn so that the cleaning yarn can be cleaned in the second cleaning tank 440 for a longer period of time. The movement delay blade 444 has a sickle shape having a predetermined radius of curvature The second rotating shaft 442 is narrower in area than the second rotating shaft 442 and is symmetric with respect to the second rotating shaft 442 in the diagonal direction.

That is, the movement delaying blade 444 is formed to have a generally similar shape to the moving blade 446, but has a relatively large turning radius, and is installed in a direction intersecting with the moving blade 446.

Therefore, the movement delaying blade 444 and the moving blade 446, which have been installed on the second rotation shaft 442, are formed into a "X" shape as a whole (hereinafter referred to as a "blade combination" A plurality of portions are positioned so as to agitate different regions in the inner space.

In detail, the plurality of movement delaying blades 444 and the moving blades 446 are installed along the inner space as shown in FIG. 3, Are installed so as to have partial overlapping copper lines.

Also, each blade combination has different cleaning and transfer coverage to improve cleaning efficiency.

That is, the moving blade 446 forms a cleaning and transferring coverage at a position adjacent to the second rotation shaft 442, and the movement delaying blade 444 is disposed at a position adjacent to the inner surface of the second cleaning tank 440, And the conveyance coverage is formed, so that the washing, conveying and conveying delay of the waste sand are simultaneously performed, thereby improving the cleaning efficiency.

On the other hand, for convenience of description, when the right side is the first blade combination, the center is the second blade combination, and the left side is the third blade combination, the first blade combination and the third blade combination The angle is formed in the range of 0 DEG to 270 DEG, and the blade angle of the second blade combination is formed in the range of 180 DEG to 90 DEG.

Accordingly, the movement of the cleaning yarn is delayed by the overlapped region in the process of passing the washing yarn by the combination of the second blades in the first blade combination and the process of passing the washing yarn by the combination of the third blades in the combination of the second blades, The cleaning efficiency can be improved.

Further, the moving delay blade 444 has a smaller contact area with the cleaning blade 446 than the moving blade 446, and a contact area is formed adjacent to the inner surface of the second cleaning tank 440.

On the other hand, the moving blade 446 is in contact with the cleaning yarn and is in contact with the cleaning yarn at a position adjacent to the second rotation axis 442, as compared with the moving delay blade 444.

In the case of the cleaning yarn located in the vicinity of the second rotation shaft 442 in the second cleaning tank 440 due to the above-described shape and installation structure, a relatively large amount of cleaning yarn is contacted by the moving blade 446, A relatively long cleaning yarn travel distance is obtained.

In the case of the cleaning yarn located on the bottom surface of the second cleaning tank 440, a relatively small amount of the cleaning yarn is contacted by the movement delaying blade 444, so that the cleaning yarn is stirred in place or a relatively short moving distance The residence time of the cleaning yarn can be sufficiently secured.

In this embodiment, in the case of the combination of the first blades, the end portion of the blade is cut at a certain length or shortened in length as shown by "A" in FIG. 11, (Including the second reduction gear 443 and the second cleaning motor 441).

In addition, although a plurality of sealing members 452 are provided inside the motor unit, a drain 454 is further provided to discharge the washing liquid and the cleaning yarn flowing into the motor unit, thereby preventing a load on the motor unit .

On the other hand, the cleaning yarn that has been cleaned in the second cleaning tank 440 is gradually moved at the same time as the cleaning, and is accommodated in the cleaning yarn discharging unit 480.

The cleaning yarn discharging unit 480 is connected to the lower end of the second cleaning tank 440. When the cleaning yarn is received by a predetermined amount or more, The cleaning liquid can be discharged together with the predetermined cleaning liquid.

The cleaning liquid that exits through the discharge valve 482 from the cleaning yarn discharging unit 480 may add a cleaning liquid to the cleaning liquid tank 460 automatically or manually to maintain the water level.

The washing liquid tank 460 is provided at an upper end of the second washing tank 440 and the lower end of the washing liquid tank 460 adjacent to the second washing tank 440 is provided with a plurality of sensors Respectively.

The plurality of sensors include at least the electrical conductivity sensor 466, and it can be confirmed that effective cleaning is performed when the measured electrical conductivity is within a certain range.

The washing liquid tank 460 may further include a pH sensor 464 and a temperature sensor 462.

The pH sensor determines the cleaning efficiency through the hydrogen ion index of the cleaning liquid. When the total conductivity is determined together with the electrical conductivity sensor 466 and the temperature sensor 462, more effective cleaning efficiency can be determined.

In addition to the control of the second cleaning motor 441, a circulation inlet 492 through which the cleaning liquid is introduced to control the cleaning speed is further provided on one side of the first cleaning tank 420, and the circulation inlet 492 The cleaning liquid tank 460 or the external fluid supply source is connected to the circulation pump 496 so that the cleaning rate can be adjusted by circulating the cleaning liquid through the flow of the cleaning liquid.

To this end, the cleaning liquid tank 460 may further include a circulation and discharge unit 494 for discharging the cleaning liquid for circulation.

Further, in the present embodiment, the transparent windows 471, 472, 473 and 474 are respectively attached to the first cleaning tank 420, the cleaning liquid tank 460, the second cleaning tank 440 and the cleaning yarn discharging unit 480 So that the washing process can be confirmed from the outside.

Meanwhile, in the cleaning means 400, two methods are provided to improve the cleaning speed.

First, in this embodiment, the cleaning speed can be improved by adjusting the rotation speeds of the first cleaning motor 421 and the second cleaning motor 441. In this case, the energy required for the cleaning operation is relatively increased do.

Therefore, in order to reduce the energy consumption, the first cleaning tank 420, the cleaning liquid tank 460 or the first cleaning tank 420 and the external fluid supply source may be connected to the circulation pump 422 without controlling the rotational speeds of the cleaning motors 421, The washing rate can be improved by connecting the circulating flow path including the circulating flow path 496 and circulating the fluid.

Meanwhile, the washing yarn discharged through the washing means 400 as described above is transferred to the drying means 500 and dried to produce a regenerated yarn.

Fig. 13 is a view showing an embodiment of the drying means according to the present invention.

The microwave oven 520 is applied to the drying means 500 and the conveying means for conveying the washing yarn to the drying means 500 may be provided by a cleaning means, A drying conveyance belt 544 for guiding the sheet to pass through the oven 520 and a drying conveyance motor 542 and a drying conveyance pulley 546 for rotating the drying conveyance belt 544. [

That is, the washing yarn washed through the washing means 400 is dried by the microwave oven 520 along the drying conveyance belt 544 to be regenerated. The regenerated yarn thus generated is supplied to the storing and feeding means 600, Respectively.

FIG. 14 is a view showing one embodiment of the storage and supply means of the present invention, and FIG. 15 is a view showing another embodiment of the storage and supply means, which is a main constituent of the present invention.

Referring to these drawings, the storage and supply means 600 according to the present invention receives the regenerated yarn regenerated through the above-described cleaning means 400 and the drying means 500, And replenishes the regenerated yarn and at least the shortage of the regenerated yarn with yarn so as to correspond to the total amount of the foundry sand required in the molding apparatus 100.

In detail, the storage and supply means 600 is provided with a regenerated yarn inflow portion 620 through which the regenerated yarn fed from the drying means 500 flows, a regenerated yarn receiving portion 640 forming a receiving space for the regenerated yarn, And a yarn receiving portion 660 formed at one side of the yarn receiving portion 640 to receive the yarn.

A sand supply means 690 for supplying regenerated yarn and yarn to the molding apparatus 100 is connected to the regenerant yarn receiving section 640 and the yarn receiving section 660, Are respectively divided into regenerated yarn supplying means 692 and yarn supplying means 694.

In another embodiment of the present invention, the storage and supply means 600 further comprises a mixing storage portion 680 below the regenerated yarn receiving portion 640 and the yarn receiving portion 660.

The mixed storage portion 680 communicates with the regenerated yarn receiving portion 640 and the yarn receiving portion 660 to receive the regenerated yarn and the yarn together and regenerate and regenerate the regenerated yarn and yarn contained therein through the sand feed means 690 And supplies it to the sand supply unit 112.

The lower ends of the regenerated yarn accepting unit 640 and the yarn accepting unit 660 are selectively in communication with the mixing containing unit 680 through an opening and closing member If the supplied amount of the regenerated yarn is less than the total amount of the foundry sand required for producing the mold, the yarn is further filled and supplied to the sand feeder 112 through the sand feeder 690.

That is, according to the present invention, the waste sand recovered directly at the production site of the casting is regenerated and the regenerated yarn is supplied to the raw material for producing the next casting, and when the regenerated sand supplied satisfies the total amount of the foundry sand required The mold or core is manufactured using only the regenerated yarn.

On the other hand, when the regenerated yarn stored in the storing and feeding means 600 does not satisfy the required total amount of the foundry sand, the yarn contained in the yarn receiving portion 694 is supplied to the regenerating yarn more than the regenerator yarn, It is possible to reduce the consumption of the yarn required to manufacture the casting.

100 Molding device 200 Casting device
300 ......... Desizing device 400 ........ Playing device
500 ........ Drying means 600 ........ Storage and supply means

Claims (13)

Washing means for receiving the waste sand and washing it together with the washing liquid;
Drying means for receiving and drying the cleaned cleaning yarn from the cleaning means;
And a storage and supply means for storing the regenerated syrup which has been dried through the drying means and supplying the regenerated syringe to a molding apparatus for manufacturing a mold,
The cleaning means,
A rotating shaft which rotates inside the washing tank,
And a plurality of blade assemblies provided in plural on the rotating shaft,
Each combination of blades,
The moving blades are formed so as to contact with a relatively large amount of the waste plucking yarn and the movement delay blades which are formed to contact with a relatively small amount of the waste plucking yarn are crossed with each other in an " X " shape, And the movement delaying blade 444 has a smaller contact area with the cleaning yarn 446 than the moving blade 446 and the contact area is larger than the inner surface of the second cleaning tank 440 And the moving blade 446 is formed to have a larger contact area with the cleaning yarn than the movement delay blade 444 so as to have different cleaning and transport coverage around the rotation axis. A waste reclaiming machine.
The method according to claim 1,
Wherein the moving blade forms a relatively narrow radius of rotation about the rotation axis and is provided in a pair symmetrical in the diagonal direction.
3. The method of claim 2,
Wherein the movement delaying blade forms a rotation area at a position adjacent to the inner surface of the washing tank and is provided in a pair symmetrical in the diagonal direction so as to intersect with the moving blade about the rotation axis, .
A first washing tank in which a waste plucking yarn is washed and cleaned together with a cleaning liquid by a blade rotating around a first rotation axis, and a cleaning yarn which is communicated with the first cleaning tank and washed first and washed first, And a second cleaning tank for conveying the cleaning yarn in one direction at the same time as cleaning and washing, wherein the second cleaning tank has a rotation center in a direction corresponding to the lateral length of the second cleaning tank and crossing the first rotation axis A cleaning unit including a second rotation shaft and a plurality of blade assemblies provided on the second rotation shaft,
Drying means for receiving and drying the cleaned cleaning yarn from the cleaning means; And
And a storage and supply means for storing the regenerated syrup which has been dried through the drying means and supplying the regenerated syringe to a molding apparatus for producing a mold,
In the storage and supply means,
A regenerated yarn receiving portion in which the regenerated yarn is accommodated,
A yarn accommodating portion formed at one side of the regenerating yarn accommodating portion to accommodate the yarn,
A regenerating yarn receiving portion and a yarn receiving portion communicating with the regenerating yarn and the yarn,
Each combination of blades,
A moving blade rotating at a position adjacent to the second rotating shaft and contacting a relatively large amount of the waste plucking yarn to drive washing and one-directional transfer of the waste plucking yarn, and a rotating blade rotating at a position adjacent to the inner surface of the second washing tank and contacting a relatively small amount of the waste plucking yarn Wherein the movement delaying blades are provided so as to intersect with each other in an " X " shape, and the movement delaying blades are provided in a sickle shape having a predetermined radius of curvature, 444 are narrower in contact area with the cleaning yarn 446 than the moving blade 446 and a contact area is formed adjacent the inner surface of the second cleaning tank 440 and the moving blade 446 is in contact with the cleaning yarn And the area is larger than the movement delay blade (444).
5. The method of claim 4,
And a cleaning liquid tank for supplying a cleaning liquid to the first cleaning tank and the second cleaning tank,
Wherein a circulation flow path is formed between the first washing tank and the washing liquid tank for circulating the washing liquid by using a circulation pump to improve the washing speed.
[5] The apparatus according to claim 4,
A first blade formed to be inclined toward the first rotation axis,
And a second blade disposed in a direction crossing the first blade. 1. A casting production system for casting a casting mold by casting molten metal into a casting mold,
A waste product recovered from at least one of a molding device for producing a mold or a degreasing device for separating a molded product from a waste product is washed using a cleaning means and dried by means of a drying means to produce a regenerated yarn, And a waste material recovery device for receiving the recovered yarn using the supply means and supplying the regenerated yarn to the shaping device,
In the storage and supply means,
The casting yarn mixed with the regenerated yarn and the yarn is supplied at least when the total amount of the foundry sand required for the production of the mold is supplied, and the casting yarn mixed with the regenerated yarn and the yarn is supplied, Wherein a closed loop process for recovering and regenerating the foundry sand and waste ash generated in the production system is continuously performed.
A molding device for producing a kneaded yarn by mixing sand and a binder, and producing a mold or a core using the kneaded yarn;
A casting apparatus for casting a molten material into a mold manufactured from the molding apparatus to form a casting;
A degreasing device for separating the waste charcoal yarn from the casting molded from the casting device;
At least the wastepaper recovered from the molding apparatus or the degreasing apparatus is washed using a cleaning means and dried using a drying means to produce a regenerated yarn and the produced regenerated yarn is supplied to the molding apparatus And a waste paper recycling device
The sand supplied to the shaping apparatus,
Based on the total amount of sand required for the manufacture of the mold
The regenerated yarn is supplied to the regenerated yarn when the amount of regenerated yarn stored in the storing and feeding means is equal to or more than the total amount of sand required, Wherein a closed loop process is carried out in which the foundry sand and waste sand produced in the casting production system are recovered and regenerated in cooperation with the working time required for the process.
9. The method according to claim 7 or 8,
In the storage and supply means,
A regenerated yarn receiving portion in which the regenerated yarn is accommodated,
A yarn accommodating portion formed at one side of the regenerating yarn accommodating portion to accommodate the yarn,
A regenerating yarn receiving portion and a yarn receiving portion,
And a sand supply means for supplying the regenerated yarn and the yarn housed in the mixing accommodating portion to the shaping apparatus.
Washing means for receiving the waste sand and washing it together with the washing liquid;
Drying means for receiving and drying the cleaned cleaning yarn from the cleaning means;
And a storage and supply means for storing the regenerated syrup which has been dried through the drying means and supplying the regenerated syringe to a molding apparatus for manufacturing a mold,
Wherein the storage and supply means comprises:
A regenerated yarn receiving portion in which the regenerated yarn is accommodated,
A yarn accommodating portion formed at one side of the regenerating yarn accommodating portion to accommodate the yarn,
A regenerating yarn receiving portion and a yarn receiving portion,
And a sand supply unit for supplying the regenerated yarn and the yarn housed in the mixed storage unit to the molding apparatus,
The cleaning means,
A rotating shaft which rotates inside the washing tank,
And a plurality of blade assemblies provided in plural on the rotating shaft,
Each combination of blades,
A moving blade formed so as to contact with a relatively large amount of waste paper and a moving delay blade formed so as to contact with a relatively small amount of paper waste paper, the moving blade and the moving delay blade each have a sickle shape having a predetermined radius of curvature And the moving delay blade 444 has a smaller contact area with the cleaning yarn 446 than the moving blade 446 and a contact area is formed adjacent to the inner surface of the second cleaning tank 440, Wherein an area of contact with the cleaning yarn is larger than that of the movement delaying blade (444), and is formed to have different cleaning and transport coverage around the rotation axis.
11. The method of claim 10,
The cleaning tank may include:
A first washing tank for washing and washing the waste ash with a washing liquid,
And a second washing tank communicating with the first washing tank to receive the washing yarn washed and washed first, and a second washing tank for washing the received washing yarn secondarily and simultaneously conveying the washing yarn in one direction,
And a rotating shaft on which the plurality of blade combinations are installed is provided in the second washing tank.
The method as claimed in claim 4 or 11,
And a piercing plate is provided between the first washing tank and the second washing tank for limiting the particle size of the washing yarn supplied to the second washing tank.
delete

Images