KR102048728B1 - Recycling device for metal scrap contaminated with oil - Google Patents

Abstract

The present invention relates to an apparatus for recycling an oil-contaminated metal scrap, which comprises: a grinding unit for grinding a metal scrap containing an oil contaminant; a contaminant removing unit for receiving the metal scrap grinded by the grinding unit to mix the same, and inducing the oil contaminant to be downwardly dropped from the metal scrap by the gravity; an oil vapor processing unit for receiving and processing oil vapor generated from the contaminant removing unit; a dry air supply unit for blowing dry air to the metal scrap passing through the contaminant removing unit to dry the same; a control unit for controlling operations of the grinding unit, the contaminant removing unit, and the dry air supply unit; and a communication module connected to a manager terminal through a wireless communication network, and receiving a control signal input by the manger terminal to transmit the same to the control unit. According to the present invention, contaminants are physically removed from the metal scrap contaminated by the oil contaminant, thereby excellently improving and maintaining a state of the metal scrap at low costs. In addition, the management is convenient by remotely controlling and checking situations of apparatus operation and contaminant removal through the wireless communication network.

Description

Recycling device for metal scrap contaminated with oil}

The present invention relates to a metal scrap recycling apparatus, and more particularly, to an oil contaminated metal scrap recycling apparatus for physically separating oil from metal scrap in an oil contaminated state to provide a clean metal scrap.

From small objects around your life to civil structures and buildings, end-of-life products are broken down and sorted by material for recycling. In addition, recyclable materials among the classified ones are collected separately, and those that cannot be recycled are disposed of.

In recent years, such recycling systems have become increasingly socially concerned with recycling of resources and environmental pollution, and are being gradually organized according to the development of recycling-related technologies, and the types of recycled materials are also increasing.

Among the above recyclable materials, iron scrap is also included. There are many types of steel scraps, such as oil tanks, engine blocks or fuel hoses, frames, brackets, steel plates, springs, bolts, nuts, and rebars, which occur during the dismantling of scrap trucks, heavy equipment or waste ships or buildings. Wait for it to be collected by the vehicle and recycled as it is loaded into the yard.

The iron scrap is used a lot in steel mills. For example, it is put in a blast furnace to produce a molten iron, or it is put together with a molten iron in an electric furnace. In this case, the injected steel scrap is melted by high heat and merged with the molten iron.

On the other hand, the important thing in using scrap is the cleanliness of the scrap itself. For example, when scrap is severely corroded or contaminated with oil, grease, or the like, the value and utility of scrap are inevitably deteriorated.

Therefore, in order to recycle pipes and tanks used in fuel tanks or oil circulation systems, such as junk cars and waste ships, oils remaining inside or adhering to surfaces must first be removed. In almost all cases, however, no separate device or method for removing contaminant oils from scrap has been proposed, only the collected scrap is stacked on the yard.

Korean Unexamined Patent Publication No. 1998-037283 (Manufacturing method for steel deoxidizer or aluminum melting raw material and steel rack modifier)

The present invention has been made to solve the above problems, it is possible to improve and maintain the state of the metal scrap in a state contaminated by oil pollutants, and to remotely control the operation of the device and the removal of contaminants through a wireless communication network The aim is to provide an oil contaminated metal scrap recycling apparatus that can be controlled and checked at

Oil contaminated metal scrap recycling apparatus of the present invention as a means for solving the problem for achieving the above object, the grinding portion for passing through the metal scrap containing the oil contaminants; A first container installed at a lower part of the pulverization unit and receiving oil pollutants flowing out during pulverization; A contaminant removing unit which mixes the metal scrap crushed by the crushing unit in a state in which it is received and induces an oil contaminant to fall downward from the metal scrap by the action of gravity; An oil vapor treatment unit receiving and treating oil vapor generated from the pollutant removing unit; A second container disposed under the pollutant removal unit and receiving a falling oil pollutant; A dry air supply unit for blowing and drying the dry air to the metal scrap passing through the pollutant removing unit; A control unit for controlling the operation of the grinding unit, the pollutant removing unit and the dry air supply unit; It is connected to the manager terminal through a wireless communication network, and includes a communication module for receiving a control signal input from the manager terminal and delivers it to the control unit.

In addition, the pollutant removal unit; It has an inner space that is open up and down, both sides of the casing is provided with a horizontal side shaft, and the support structure for supporting the side shaft to be rotatable in a state arranged on both sides of the casing, floating the casing from the ground And a tilting motor mounted to the support structure and transmitting a rotating torque to the side shaft, the tilting motor tilting the casing in a desired direction, and provided in the inner space of the casing, and stirring means for stirring and stirring the metal scrap, and the inside of the casing. A heating part installed at the upper side and operating when necessary, generating a heat, a sliding shutter installed to be slidable on the upper part of the casing, and a sliding part sliding the sliding shutter to open or block the inner space of the casing to the upper part; Is installed on the lower side of the casing detachably, serves as the bottom surface of the casing A porous bottom plate having a plurality of discharge holes through which oil contaminants flow out, an oil pan fixed to a lower portion of the porous bottom plate and leading oil contaminants passing through the discharge holes to the second container; It is provided in the lower part of the oil pan, and is provided with lifting and tilting means for lifting and tilting the porous bottom plate and the oil pan assembly.

In addition, the stirring means; An agitating screw made of an extension rod extending in a longitudinal direction and a spiral blade fixed to an outer circumferential surface of the extension rod, disposed to be inclined in an oblique direction to an inner space of the casing, and a universal joint mounted to both ends of the stirring screw, and It is mounted on the outer side of the casing, and has a stirring motor connected to one universal joint to apply a rotation torque to the stirring screw, and a support shaft coupled to the other universal joint and bearing support to allow the shaft to rotate on the casing.

In addition, the lifting and tilting means; A mobile trolley having rolling wheels and capable of traveling on the ground, installed vertically to the mobile trolley, a piston rod linked to the lower part of the oil pan, and lowering the porous bottom plate to discharge metal scrap from the casing; It has a plurality of actuators for tilting.

The oil-contaminated metal scrap recycling apparatus of the present invention made as described above can physically remove contaminants from metal scrap in a state contaminated by oil contaminants to improve and maintain the state of the metal scrap at low cost. .

In addition, the operation of the device and the removal of contaminants can be controlled and checked remotely through the wireless communication network for easy management.

1 is a view showing the overall structure of an oil contaminated metal scrap recycling apparatus according to an embodiment of the present invention.
2 and 3 are views for explaining the structure and operation of the pollutant removal unit shown in FIG.
4 is a plan view of the casing shown in FIG. 2.
FIG. 5 is a side view of the contaminant removing unit shown in FIG. 2.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Basically, the present invention is to have a constitution that improves the merchandise good by removing various contaminants, in particular oil contaminants contained in the metal scrap. Among various metal scraps, for example, a discarded fuel tank or an oil supply pipe is contaminated with oil and thus cannot be used as it is to remove oily contaminants.

In particular, in the case of fuel tanks, fuel may remain intact inside, and if the fuel leaks from the fuel tank in the unloaded state, the risk of fire increases. The present invention is to crush all the wearing scrap, including the fuel tank once, so that the fuel does not accumulate inside and flows down to the bottom by the action of gravity.

1 is a view showing the overall structure of an oil contaminated metal scrap recycling apparatus according to an embodiment of the present invention.

As shown, the recycling apparatus 10 according to the present embodiment, the receiver 21, the crushing unit 30, the first container 63a, the control unit 15, the communication module 16, the pollutant removal unit 40, the oil vapor treatment unit 61, the second container 63b, the dry air supply unit 50, and the manager terminal 11.

The receiver 21 receives the metal scrap supplied through the scrap conveying vehicle 13 and puts it on the 1st conveyor 27, and has the hopper 23. As shown in FIG. The metal scrap passed through the hopper 23 is transferred to the crush unit 30 by the first conveyor 27.

The crushing unit 30 has a casing 32 for receiving metal scrap, a pair of crushing rollers 33, a hopper 35, and a dust filter 34 provided in the casing 32. The grinding roller 33 is controlled by the control unit 15 to cut the metal scrap. For example, the pulverization unit 30 may use a pulverizer used in a large junkyard.

The metal scrap passes through the grinding roller 33 and is finely cut. In particular, an oil tank or fuel tank in which some oil or fuel remains is crushed. The oil or fuel from the pulverized tank flows down to the bottom and is collected in the first container 63a. The remaining metal grinding material is led to the hopper 35 and loaded into the second conveyor 37.

Dust filter 34 filters the dust generated during the grinding process. In addition, the oil pollutants collected in the first container 63a are separately collected and recycled or disposed of.

The contaminant removing unit 40 mixes the metal scrap crushed by the crushing unit 30 in a state where it is received therein, and serves to cause the oil contaminant to flow downward by the action of gravity.

The reason for mixing the metal scrap is to change the orientation of the metal scrap. For example, in the case of a metal scrap having a concave shape, the concave portion faces sideward or downward, causing residual oil pollutants to flow down. Even if the metal scrap is crushed, it may be concave depending on its shape because it has a certain size.

Detailed description of the contaminant removing unit 40 will be described later with reference to FIGS. 2 to 6.

The second container 63b is disposed below one side of the pollutant removing unit 40. The second container 63b serves to temporarily store oil pollutants discharged from the pollutant removal unit 40. The oil collected in the second container 63b is separately collected and recycled or disposed of.

In addition, the contaminant removal unit 40 is connected to the oil vapor treatment unit 61. The oil vapor processing unit 61 serves to receive and process oil vapor generated when the pollutant removing unit 40 is operated. The processing method of the oil vapor processing part 61 can apply a well-known method.

The metal scrap, which has been processed in the pollutant removing unit 40, is transferred through the third conveyor and passes through the lower part of the dry air supply unit 53. Dry air supply unit 53 is a blower for injecting the drying air to the metal scrap. Metal scrap dried by the dry air supply is transferred to the yard and waits for use.

2 and 3 are views for explaining the structure and operation of the pollutant removing unit 40 shown in FIG. 2 is a view while the contaminants are removed, and FIG. 3 shows a structure in which the treated metal scrap is discharged to the third conveyor 51. 4 is a plan view of the casing shown in FIG. 2, and FIG. 5 is a side view of the contaminant removing unit.

As illustrated, the contaminant removing unit 40 includes a casing 43 that is opened up and down, a support structure 41a on both sides of the casing, a tilting motor 42, a stirring means, a heating unit 49, and a sliding shutter. 44a, opening and closing portion 44, porous bottom plate 47a, oil pan 47c, lifting and tilting means 47p.

First, the casing 43 is a rectangular box-shaped case in which the upper and lower portions are opened, and has side shafts 41b at both sides thereof. The side shaft 41b has the same central axis and is rotatably supported by the support structure 41a.

The support structure 41a supports the side shaft 41b in a state where it is installed at both sides of the casing 43 to lift the casing 43 to a certain height from the ground. In addition, a tilting motor 42 is provided at the upper end of each support structure 41a. The drive shaft 42a of the tilting motor 42 passes through the support structure 41a and then fits into the shaft hole 41c. The shaft hole 41c is a square hole formed in the side shaft 41b.

The drive shaft 42a transmits the rotational force of the tilting motor 42 to the side shaft 41b in a state of being fitted into the shaft hole 41c. As a result, as the tilting motor 42 operates, the casing 43 may be inclined in the direction of arrow b in FIG. 5 or vice versa.

A guide groove 43a is formed at an upper portion of the casing 43. The guide groove 43a is a slit groove formed in the inner wall surface of the casing 43 to guide the sliding movement of the sliding shutter 44a.

The sliding shutter 44a takes the form of a square plate and is slidable with its edge portion fitted into the guide groove 43a. When the sliding shutter 44a is completely moved in the arrow a direction, the upper portion of the casing 43 is blocked. In addition, the rack gear portion (44b) is provided on the upper surface of the sliding shutter (44a). The rack gear portion 44b is a gear that meshes with the drive gear 44d of the opening and closing portion 44.

The opening and closing portion 44 serves to move the sliding shutter 44a in the arrow a direction or the opposite direction, and is composed of the opening and closing motor 44c and the driving gear 44d fixed to the outer wall of the casing 43. The open / close motor 44c operates by receiving a control signal from the controller 15 to rotate the drive gear 44d. As the drive gear 44d rotates, the opening and closing operation of the sliding shutter 44a is, of course. The sliding shutter 44a opens the casing 43 when the metal scrap is supplied through the second conveyor 37 and blocks the casing when the stirring operation is performed inside the casing 43.

In addition, the exhaust fan 45 is provided in the sliding shutter (44a). The exhaust fan 45 serves to extract dust or oil generated during stirring to the outside of the casing 43. The oil vapor discharged through the exhaust fan 45 is transferred to the oil vapor treatment unit 61 and is appropriately processed.

The stirring means is to stir the metal scrap introduced into the inner space 43b of the casing, and includes two stirring screws 46e, a universal joint 46b, a stirring motor 46a, and a support shaft 46f.

The stirring screw 46e consists of the extension rod 46c extended diagonally and the spiral blade 46d fixed to the outer peripheral surface of the extension rod. The stirring screw itself may take the form of a known screw peer. The two stirring screws 46e are inclined at an angle of 45 degrees and have a structure in which the two cross each other, and the metal scrap under the casing 43 is pulled upward. The metal scrap is smoothly mixed by the stirring screw 46e.

The universal joint 46b is a mechanical element mounted at both ends of each stirring screw 46e. The universal joint 46b is connected to the driving shaft of the stirring motor 46a and the fixing shaft to the support shaft 46f. do. The support shaft 46f is installed to be axially rotatable on the wall surface of the casing 43 through the bearing 46g, and supports the stirring screw 46e that is axially rotated.

The stirring motor 46a is installed at the lower side of the casing 43 and generates torque by an operation signal transmitted from the controller 15. The rotational force output from the stirring motor 46a is transferred to the stirring screw 46e to axially rotate the stirring screw 46e at a desired speed and direction. In addition, the driving pattern of the stirring motor 46a may be implemented in various ways. For example, the stirring screw 46e may be continuously rotated at a constant speed or intermittently. For example, a 5-minute run and a 30-minute stop operation can be repeated.

The heating unit 49 is a heater that heats metal scrap by transferring heat to the inner space 43b of the casing 43. The reason for heating the metal scrap is that the oil contaminants freeze or harden in winter so that the viscosity disappears.

Reference numeral 48a is an oil vapor sensor, and 48b is a temperature sensor. The oil vapor sensor 48a detects the concentration of the oil vapor in the internal space 43b and transmits it to the controller 15. The controller 15 drives the exhaust fan 45 and the oil vapor processing unit 61 when the concentration of the oil vapor is equal to or higher than a set value. Temperature information of the internal space 43b sensed by the temperature sensor 48b is also transmitted to the controller 15. The control unit 15 controls the operation of the heating unit 49 based on the information received from the temperature sensor 48b.

The porous bottom plate 47a has a plurality of discharge holes 47b as a rectangular plate provided on the lower side of the casing 43 so as to be lifted and lowered. The porous bottom plate 47a rises to the maximum and serves as the bottom of the casing 43 in a state of being in close contact with the lower end of the casing 43. The discharge hole 47b is a hole through which oil contaminants flowing out of the metal scrap escape.

The oil pan 47c has a ramp 47d as a member fixed to the bottom of the porous bottom plate 47a. The inclined path 47d is a passage through which oil contaminants passing downward through the discharge hole 47b flow. Oil contaminants discharged from the oil pan 47c are collected in the second container 63b.

The lifting and tilting means 47p is installed under the oil pan 47c and serves to lift and tilt the combination of the porous bottom plate 47a and the oil pan 47c. The elevating means and the tilting means include a moving cart 47m, a plurality of actuators 47g, and an operation panel 47k.

The mobile trolley 47m has a wheel 47n at its lower portion and can run on the ground. For example, as shown in FIG. 3, it can also move suitably to the arrow c direction or the opposite direction, in the state which lowered and tilted the porous bottom plate 47a.

The actuator 47g has a cylinder 47e fixed vertically to the upper surface of the moving cart 47m, and a piston rod 47f that moves up and down in the vertical direction. The upper end of the piston rod 47f is linked to the bottom of the oil pan 47c through the connector 47h. Such an actuator 47g can be independently controlled by the operation panel 47k.

By controlling the actuator 47g integrally through the operating panel 47k, the porous bottom plate 47a can be lifted or tilted. For example, before inserting the metal scrap into the casing 43, the bottom of the casing 43 is blocked by raising the porous bottom plate 47a as much as possible, and after removal of contaminants is completed, as shown in FIG. The plate 47a can be tilted toward the third conveyor 51 so that the processed material can flow down to the third conveyor 51.

The metal scrap, which has been processed in the pollutant removing unit 40, is moved after the third conveyor 51 moves through the lower part of the dry air supply unit 53, and then piled up.

The oil pollution metal scrap recycling apparatus 10 according to the present exemplary embodiment configured as described above may be remotely controlled through the manager terminal 11. The manager terminal 11 is connected to the communication module 16 via a wireless communication network or an internet network as a notebook computer or a smartphone. The communication module 16 serves to connect the manager terminal 11 and the control unit 15. As a result, the recycling apparatus 10 according to the present embodiment has a structure in which the administrator can control the remote control as much as possible.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

10: Recycling device 11: Manager terminal 13: Transport vehicle
15: control unit 16: communication module 21: receiver
23: Hopper 27: first conveyor 30: crushing unit
32: casing 33: grinding roller 34: dust filter
35: Hopper 37: second conveyor 40: pollutant removal unit
41a: support structure 41b: side shaft 41c: shaft hole
42: tilting motor 42a: drive shaft 43: casing
43a: guide groove 43b: internal space 44: opening and closing part
44a: sliding shutter 44b: rack gear part 44c: opening and closing motor
44d: Drive gear 45: Exhaust fan 46a: Stirring motor
46b: Universal joint 46c: Extension rod 46d: Spiral wings
46e: Stirring screw 46f: Support shaft 46g: Bearing
47a: porous bottom plate 47b: discharge hole 47c: oil pan
47d: Slope 47e: Cylinder 47f: Piston rod
47g: Actuator 47h: Connector 47k: Operation Panel
47m: Mobile cart 47n: Wheel 47p: Lifting and tilting means
48a: vapor sensor 48b: temperature sensor 49: heating unit
50: dry air supply unit 51: third conveyor 53: dry air supply unit
61: steam treatment unit 63a: first container 63b: second container

Claims (4)

delete A pulverizing unit for pulverizing the metal scrap containing oil contaminants; A first container installed at a lower part of the pulverization unit and receiving oil pollutants flowing out during pulverization; A contaminant removing unit which mixes the metal scrap crushed by the crushing unit in a state in which it is received and induces an oil contaminant to fall downward from the metal scrap by the action of gravity; An oil vapor treatment unit receiving and treating oil vapor generated from the pollutant removing unit; A second container disposed under the pollutant removal unit and receiving a falling oil pollutant; A dry air supply unit for blowing and drying the dry air to the metal scrap passing through the pollutant removing unit; A control unit for controlling the operation of the grinding unit, the pollutant removing unit and the dry air supply unit; Is connected to the manager terminal through a wireless communication network, and receives a control signal input from the manager terminal and includes a communication module for transmitting to the control unit,
The pollutant removal unit; It has an inner space that is open up and down, both sides of the casing is provided with a horizontal side shaft, and the support structure for supporting the side shaft to be rotatable in a state arranged on both sides of the casing, floating the casing from the ground And a tilting motor mounted to the support structure and transmitting a rotating torque to the side shaft, the tilting motor tilting the casing in a desired direction, and provided in the inner space of the casing, and stirring means for stirring and stirring the metal scrap, and the inside of the casing. A heating part installed at the upper side and operating when necessary, generating a heat, a sliding shutter installed to be slidable on the upper part of the casing, and a sliding part sliding the sliding shutter to open or block the inner space of the casing to the upper part; Is installed on the lower side of the casing detachably, serves as the bottom surface of the casing A porous bottom plate having a plurality of discharge holes through which oil contaminants flow out, an oil pan fixed to a lower portion of the porous bottom plate and leading oil contaminants passing through the discharge holes to the second container; The oil contaminated metal scrap recycling apparatus is installed in the lower portion of the oil pan, the lifting and tilting means for lifting and tilting the porous bottom plate and the oil pan assembly. The method of claim 2,
The stirring means is;
An agitating screw made of an extension rod extending in the longitudinal direction and a spiral blade fixed to an outer circumferential surface of the extension rod, and arranged to be inclined in an oblique direction to an inner space of the casing;
Universal joints mounted on both ends of the stirring screw,
A stirring motor mounted to an outer portion of the casing and connected to one side universal joint to apply a rotating torque to the stirring screw;
An oil-contaminated metal scrap recycling apparatus having a support shaft coupled to the other universal joint and bearing supported to be axially rotatable to the casing. The method according to claim 2 or 3,
The lifting and tilting means;
A mobile cart having rolling wheels and capable of traveling on the ground;
Oil contaminated metal scrap recycling apparatus installed perpendicular to the moving cart, the piston rod is linked to the lower portion of the oil pan, and has a plurality of actuators for lowering and tilting the porous bottom plate to discharge the metal scrap from the casing .

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