KR102018686B1 - Pellet production apparatus using plastic dust - Google Patents

Abstract

The present invention relates to a pellet production apparatus using plastic dust, which comprises: a melting part for melting raw materials consisting of the plastic dust in a liquid form; a precipitating part for converting the raw materials of the liquid form into a solid form by immersing the raw materials falling through the melting part; and a pulverizing part for pulverizing the raw materials converted into the solid form to produce plastic pellet.

Description

Pellet production equipment using plastic dust {PELLET PRODUCTION APPARATUS USING PLASTIC DUST}

The present invention relates to a pellet manufacturing apparatus using plastic dust, and more particularly, to a pellet manufacturing apparatus using plastic dust to produce a pellet by processing the plastic dust generated during the plastic extrusion process.

Plastics are lightweight and have excellent mechanical strength, and are widely used for household goods such as food containers and packaging materials, industrial goods such as electrical and electronic products and automobile parts, and agricultural and fishing industries such as plastic houses and fishing nets.

However, nearly 100 million tons of waste plastics (waste synthetic resins, waste resins) are thrown away every year, polluting the environment and threatening life, and the demand for technology to recycle and recycle waste plastics that have been mass-produced and mass discarded from the viewpoint of environmental protection. And interest is increasing.

As part of this, it is paying attention to a system capable of infinitely recyclable by using the waste plastic to produce the pellets required for foam extrusion to recycle the existing plastic and to re-pellet the recycled plastic.

However, in the case of the conventional plastic processing technology, there was a problem that the operator has to manage each site and operation process, and accordingly, the entire process is automatically performed, but the plastic pellet manufacturing apparatus which improves the efficiency and improves the quality of the finally produced pellets. The need for a growing situation is increasing.

Korean Patent Publication No. 10-1325285 Korean Patent Registration No. 10-0566065

One aspect of the present invention provides a pellet manufacturing apparatus using plastic dust to process the raw material in the form of plastic dust to produce plastic pellets.

Another aspect of the present invention provides a pellet manufacturing apparatus using plastic dust that can alleviate the impact applied in the pellet manufacturing process to improve durability and production quality.

Another aspect of the present invention provides a pellet manufacturing apparatus using plastic dust having excellent water resistance and crack resistance in the pellet manufacturing process.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Pellet production apparatus using a plastic dust according to an embodiment of the present invention, the melting portion for melting the raw material consisting of the plastic dust in the form of a liquid; Precipitating unit for immersing the raw material falling through the melting portion to convert the raw material of the liquid form into a solid form; And a pulverization unit for pulverizing the raw material converted into a solid form to produce plastic pellets.

Pellet manufacturing apparatus using the plastic dust is provided at the front end of the melting portion, the stirring unit for stirring the plastic dust; A first transfer part installed between the stirring part and the melting part, and configured to transfer the stirred plastic dust to the melting part through the stirring part; A second transfer part installed between the settling part and the pulverizing part and transferring the raw material in solid form precipitated in the settling part to the pulverizing part; A packing part installed at a rear end of the pulverizing part and packing the plastic pellets produced through the pulverizing part; And a third transfer unit installed between the pulverization unit and the packaging unit to transfer the plastic pellets to the packaging unit.

The stirring unit is provided in an inverted conical shape, the upper portion is formed with an opening through which the plastic dust is introduced, the central shaft is formed along the height direction, the rotary shaft is provided with a stirring blade for stirring the plastic dust is provided ,

The melter is installed at a position higher than the settling portion, the discharge hole is formed on one side disposed in the vertical upper portion of the settling portion to discharge the molten raw material in liquid form through the discharge hole to freely fall into the settling portion,

One end of the first transfer part is connected to the stirring part and the other end thereof is connected to the melting part, and a feed inclined surface which rises toward the melting part from the stirring part is formed.

The precipitation unit, when the coolant is stored in the raw material of the liquid form free-falling from the melting portion is precipitated in the cooling water to cool the raw material in the liquid form,

The second conveying part has one end connected to the settling part and the other end connected to the pulverizing part, and a conveying inclined surface which rises from the settling part toward the pulverizing part is formed, and a conveyor belt having a mesh structure along the conveying inclined surface. Is installed, the cooling material remaining in the raw material is controlled to fall through the through-holes of the mesh structure while controlling the raw material is transferred in a continuous strip shape as the raw material cooled in the solid form is attached to the mesh structure ascending transfer And, the guide frame of the '' 'shape is formed on the upper portion of the conveyor belt to induce the belt-shaped raw material to be transferred in a predetermined direction,

The molten part may include a heating part for heating the plastic dust transferred through the second conveying part in a liquid form; A motor unit installed through a connection port formed at one side of the heating unit to discharge the raw material in the form of liquid stored in the heating unit by rotating in a forward or reverse direction or recovering the raw material into the heating unit; A discharge pipe having one end connected to the motor unit and the other end connected to the discharge hole to discharge the raw material discharged from the heating unit through the discharge hole when the motor unit is rotated forward; A recovery tube having one end connected to the motor unit and the other end connected to one end of the discharge pipe to recover raw material remaining in the discharge pipe to the heating unit when the motor unit is reversely rotated; A first solenoid valve installed at one end of the discharge pipe; A second solenoid valve installed at the other end of the discharge pipe; A third solenoid valve installed at one end of the recovery pipe; A fourth solenoid valve installed at the other end of the recovery pipe; A sensor unit installed at one side of the discharge pipe between the first solenoid valve and the second solenoid valve; And a control unit for controlling the operation of the melting portion,

The control unit,

When the set value for the temperature and the raw material discharge set by the user is received, the first solenoid valve and the second solenoid valve are opened and the third solenoid valve and the fourth solenoid valve are closed. By controlling to rotate in a forward direction at a set speed is controlled to discharge the raw material of the liquid form stored in the heating unit through the discharge pipe to the discharge hole,

The first solenoid valve and the second solenoid valve are closed when the sensing data of the internal pressure of the discharge pipe measured from the sensor unit is compared with a preset threshold value and the sensing data exceeds the threshold value. And the third solenoid valve and the fourth solenoid valve are controlled to allow the motor unit to rotate in a reverse direction so that the raw material remaining in the discharge hole is recovered into the heating unit through the recovery pipe. To take control,

While the forced inflow control is performed, the reverse rotational speed of the motor unit is controlled to increase by a predetermined multiple until sensing data less than the threshold value is detected through the sensor unit, and the rotational speed of the rotational speed within a predetermined section is controlled. The opening start time of the solenoid valve in the closed state may be set in proportion to the increase multiple of the rotational speed of the motor unit while changing the increase multiple.

According to one aspect of the present invention described above, the raw material may pass through the stirring unit, the melting unit, the precipitation unit, the crushing unit and the packaging portion sequentially to generate plastic pellets using the plastic dust, this process is performed automatically The productivity of the pellets can be improved.

In addition, the discharge or recovery of the raw material in accordance with the internal pressure of the melting portion and at the same time due to the structural characteristics of the second transfer portion can be controlled to be transported in a certain form, the composition for repairing the structure according to the present invention By the water resistance and crack resistance of each component constituting the pellet manufacturing apparatus using the plastic dust according to the present invention can be improved.

1 is a view showing a schematic configuration of a pellet manufacturing apparatus using plastic dust according to an embodiment of the present invention.
2 is a view showing a specific configuration of the stirring unit of FIG.
3 is a view showing a specific configuration of the melting portion of FIG.
4 is a diagram illustrating a specific configuration of the second transfer unit of FIG. 1.
5 is a view for explaining the form of the raw material conveyed by the second transfer unit.
6 to 8 are views for explaining a specific configuration and function for constantly discharging the raw material in the liquid form in the melting portion of FIG.
9 to 14 are views showing a specific configuration of the elastic support provided in the second transfer unit.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

1 is a view for explaining a schematic function of the wire drum rotating apparatus according to the present invention.

Specifically, the pellet manufacturing apparatus 1 using the plastic dust according to an embodiment of the present invention, the stirring part 10, the first conveying part 21, the melting part 30, the precipitation part 40, the second It may include a conveying unit 22, a crushing unit 50, a third conveying unit 23 and the packaging unit 60.

The stirring unit 10 may be a raw material for producing a plastic pellet using the plastic dust. In this regard, it will be described with reference to FIG.

2 is a view showing a specific configuration of the stirring unit 10 of FIG.

As shown, the stirring unit 10 may be provided in an inverted cone shape as a whole. The upper portion of the inverted cone shape may be formed with an opening through which the plastic dust is injected from the reservoir, and the lower portion of the inverted cone shape may have an opening through which the stirred plastic dust is discharged.

In addition, the rotating shaft 11 is formed in the center of the stirring portion 10 in the height direction, that is, the direction perpendicular to the ground, and the stirring shaft for stirring the plastic dust introduced into the stirring portion 10 on the rotating shaft 11 ( 12) can be installed. The stirring blades 12 may rotate in a predetermined direction with respect to the rotating shaft 11 to allow the plastic dust to be evenly stirred.

The plastic dust stirred by the stirring unit 10 may be discharged through the opening formed in the lower portion and introduced into the first transfer unit 21.

The first transfer part 21 may be a member for transferring the stirred plastic dust to the melting part 30 through the stirring part 10. The first transfer part 21 may be in the form of a conveyor, but is not limited thereto. The first transfer part 21 may be replaced with various known devices for moving an object.

Specifically, the first transfer portion 21 is one end is connected to the stirring portion 10 and the other end is connected to the melting portion 30, the transfer inclined surface rising toward the melting portion 30 from the stirring portion 10 This can be formed. Therefore, the raw material having passed through the stirring unit 10 may be transferred to the melting unit 30 disposed at a position higher than the stirring unit 10 through the first transfer unit 21.

The melting part 30 is a member for heating a raw material composed of plastic dust introduced through the first transfer part 21 under high temperature and high pressure to melt it in the form of a liquid. The melting part 30 is positioned higher than the stirring part 10 and the precipitation part 40 described later. Can be installed on

To this end, the melting part 30 may be provided with a temperature control means for controlling the heating temperature according to the properties of the material of the plastic dust. Detailed description thereof will be described later.

Meanwhile, as shown in FIG. 3, a discharge hole 39 for discharging the raw material converted into the liquid form may be formed at one side of the melting part 30. At this time, the position of the discharge hole 39 is preferably formed in the vertical upper portion of the precipitation portion (40). Due to such a structural feature, when the raw material (plastic dust) heated through the melting part 30 and converted into a liquid form is discharged through the discharge hole 39, the raw material may freely fall and be introduced into the precipitation part 40. .

Precipitating portion 40 is a member for receiving the raw material of the liquid form free-falling through the discharge hole 39 of the molten portion 30, it may be provided in the form of a tank with an upper surface open.

The inside of the precipitation part 40 may be filled with a cooling water for cooling the heated raw material, and thus the raw material dropped into the precipitation part 40 may be precipitated in the cooling water and cooled again in a solid form.

The second transfer part 22 may be a member for transferring the raw material precipitated in the precipitation part 40 to the pulverization part 50. In this regard, it will be described with reference to FIG.

4 is a view illustrating a specific shape of the second transfer unit 22.

Specifically, the second transfer part 22 has one end connected to the settling part 40 and the other end connected to the pulverizing part 50, and the conveying inclined surface rising toward the pulverizing part 50 from the settling part 40 is Can be formed.

At this time, the second conveying part 22 may be a conveyor belt of the mesh structure is installed along the inclined plane, the raw material cooled in a solid form by the conveyor belt of the mesh structure is conveyed upwardly attached to the mesh structure Can be conveyed in a continuous strip shape.

As described above, the raw material discharged through the discharge hole 31 may be in liquid form, and the raw material may be precipitated while having a continuity in the form of a stream of water in the precipitation unit 40. Therefore, the raw material precipitated in the precipitation unit 40 may be cooled to a thin strip-shaped solid form (P) when instantaneous cooling by the cooling water as shown in FIG.

At this time, the solid material P cooled in one end of the second transfer portion 22 inserted into the precipitation portion 40 is seated, as described above, the second transfer portion 22 is a conveyor belt having a mesh structure. Since it is made of a raw material (P) can be transported in a state attached to the conveyor belt. In addition, the cooling water remaining in the raw material (P) may naturally fall through the through-hole of the mesh structure, and thus the pellet manufacturing apparatus 1 using the plastic dust according to the present invention is the raw material cooled by the precipitation unit 40 (P) may be transferred to the crushing unit 50 in a continuous strip shape.

Meanwhile, guide frames 22a and 22b may be installed in the second transfer part 22. Specifically, the guide frame 22a, 22b having a '-' shape is formed on the conveyor belt formed on the inclined surface of the second transfer part 22 to induce the strip-shaped raw material to be transferred along a predetermined direction. have.

The pulverization unit 50 may generate a plastic pellet by pulverizing the belt-shaped solid raw material transferred through the second transfer unit 22 to finely pulverize the raw material converted into the solid form.

The generated plastic pellets are transferred to the packing part 60 through the third transfer part 23, and the packing part 60 may be processed into a product form by filling plastic pellets in the packing material.

As such, in the pellet manufacturing apparatus 1 using the plastic dust according to the embodiment of the present invention, after the raw material having the form of plastic dust is stirred by the stirring unit 10, the melting unit (1) through the first transfer unit 21 ( 30, the raw material introduced into the melting part 30 may be heated in a liquid state, and then the molten raw material may be dropped into the precipitation part 40 by a predetermined amount. The raw material dropped into the precipitation part 40 may be cooled and solidified into a solid form and immediately transferred to the pulverization part 50 through the second transfer part 22. The strip-shaped raw material may be pulverized into plastic pellets in the form of fine particles by the pulverization unit 50 and then packaged by the packaging unit 60.

On the other hand, in such a plastic pellet manufacturing process, the pellet manufacturing apparatus 1 using the plastic dust according to the present invention is provided with means for continuously discharging only a predetermined amount of the raw material in the form of liquid discharged through the melter 30 at all times. Can be. In this regard, it will be described with reference to FIGS. 6 to 8 together.

6 to 8 are views for explaining a specific configuration and function of the melter 30 of FIG.

FIG. 6 is a block diagram showing a specific configuration of the melting part 30 shown in FIG. 1, and FIG. 7 is a perspective view illustrating an example of the melting part 30 including the components of FIG. 6, and FIG. 8 is a melting view. It is a conceptual diagram for demonstrating the raw material circulation principle in the part 30.

Specifically, the melter 30 according to an embodiment of the present invention as shown in FIGS. 6 and 7 includes a housing 31, a dust input unit 32 (see FIG. 3), a heating unit 33, and a motor. The unit 34 may include a valve unit 35, a sensor unit 36, and a control unit 37.

The melting part 30 may have a housing 31 for receiving and installing each component described later. Housing 31 is to be the overall appearance of the melt portion 30, in the illustrated example is shown in the form of a rectangle, but the shape and size can be variously modified.

The dust input unit 32 is a member that supplies the plastic dust transferred through the second transfer unit 22 to the heating unit 32.

The heating unit 33 may melt the raw material in liquid form by heating the plastic dust introduced through the dust input unit 32. The heating unit 33 may heat the inside of the heating unit 33 by using various known heating means. For example, the heating means may be provided in a space formed between the lower end of the heating part 33 and the bottom surface of the housing 21, and the heating means may be an electric heater, and may be provided in a rod or coil shape. . Alternatively, the heating means provided in the heating part 33 may make the inside of the heating part 33 into a high temperature and high pressure environment to melt the raw material in the form of a liquid in liquid form.

The motor unit 34 may be installed at one side of the heating unit 33. To this end, the heating unit 33 may be formed in the connection port for the connection of the motor unit 34, one end of the motor unit 34 may be installed in the heating unit 33 through this connection port.

The motor unit 34 may discharge the raw material in the form of liquid stored in the heating unit 33 from the heating unit 33 by a rotational movement or recover the raw material flowing to the inside of the heating unit 33. For example, the motor 34 is composed of an impeller and a motor, by rotating the impeller by the motor can suck and discharge the raw material stored in the heating unit 33.

The other end of the motor unit 34 may be connected to the discharge pipe 38a and the recovery pipe 38b.

The discharge pipe 38a is a tubular member having one end connected to the motor 34 and the other end connected to the discharge hole 39. The raw material in liquid form discharged from the heating unit 33 by the motor 34. Can be discharged through the discharge hole (39).

The discharge pipe 38a is provided with a first solenoid valve 35a constituting the valve unit 35 at one end of the motor unit 24 side, and constitutes a valve unit 35 at one end of the discharge hole 39 side. The second solenoid valve 35b may be installed. In addition, the sensor unit 36 may be installed in the discharge pipe 38a between the first solenoid valve 35a and the second solenoid valve 35b.

The recovery pipe 38b is a tubular member having one end connected to the motor 34 and the other end connected to the discharge pipe 38a. The liquid raw material moving along the inside of the discharge pipe 38a is heated by the heating unit 33. Can be recovered.

That is, one end of the discharge pipe 38a is formed with a connection part, and the recovery pipe 38b is connected to the discharge pipe 38a through the connection part so that the discharge pipe 38a and the recovery pipe 38b may communicate with each other.

The recovery pipe 38b is provided with a third solenoid valve 35c constituting the valve portion 35 at one end of the motor portion 24 side, and constitutes a valve portion 35 at one end of the discharge tube 38a side. The fourth solenoid valve 35d may be installed.

The valve part 35 is a member which controls the movement of the raw material which moves along the inside of the discharge pipe 38a and the recovery pipe 38b by opening and closing the passage formed in the discharge pipe 38a and the recovery pipe 38b. The valve unit 35 may include a first solenoid valve 35a, a second solenoid valve 35b, a third solenoid valve 35c, and a fourth solenoid valve 35d.

As described above, the sensor unit 36 may be installed at one end of the discharge pipe 38a to measure the pressure due to the raw material in the form of liquid moving inside the discharge pipe 38a.

The controller 37 may control the respective components of the melter 30 as described above. In particular, the control unit 37 may forcibly circulate the raw materials stagnated in the discharge pipe 38a to perform a forced inflow control for flowing through the recovery pipe 38b. In this regard, it will be described in detail with reference to FIG.

The control unit 37 controls the rotation operation of the motor unit 34 and the heating operation of the heating unit 33 for supply of the raw material through the discharge hole 39 based on the set value for the temperature, raw material discharge, etc. set by the user. can do.

The control unit 37 is the first solenoid valve 35a and the first agent when the heating unit 33 is sufficiently heated by the temperature measuring means provided in the heating unit 33 and the plastic dust is melted in the liquid form. 2 open the solenoid valve 35b, and control the motor 34 to rotate at a predetermined speed in the forward direction so that the raw material in the form of liquid stored in the heating section 33 is discharged to the discharge hole 39 through the discharge pipe 38a. It can be controlled to be discharged. In this case, the control unit 37 may control the third solenoid valve 35c and the fourth solenoid valve 35d to be closed so that the raw material is moved only through the discharge pipe 38a.

Meanwhile, the controller 37 periodically collects sensing data indicating the internal pressure of the discharge pipe 38a measured by the sensor 36 while performing the above-described process, and continuously stores the sensing data with a preset threshold. Can be compared.

At this time, if it is determined that the sensing data exceeds the threshold, the controller 37 may perform forced inflow control of the raw material. When more than the raw material is supplied to the discharge pipe 38a, or when a setting for lowering the discharge amount of the raw material is input from the user, when the second solenoid valve 35b is somewhat closed, the discharge pipe 38a is supplied inside the discharge pipe 38a. The raw material increases, and the internal pressure is increased by the raw material supplied above the reference value. In this case, the discharge pipe 38a may be damaged by the raw material heated to a high temperature, or the entire melting portion 30 may be malfunctioned or inoperable.

In order to prevent such a problem, the control unit 37 may perform a forced inflow control of the raw material when it is determined that the sensing data exceeds the threshold. Specifically, the control unit 37 controls the first and second solenoid valves 35a and 35b in the open state to be switched to the closed state when it is determined that the sensing data has exceeded the threshold value. The four solenoid valves 35c and 35d can be controlled to switch to the open state.

At the same time, the control unit 37 controls the motor unit 34 to rotate at a predetermined speed in the reverse direction, so that the liquid raw material remaining in the discharge pipe 38a is inside the heating unit 33 through the recovery pipe 38b. It can be controlled to recover. That is, by recovering the raw material in the form of liquid remaining in the discharge pipe 38a through the control unit 37 to the heating unit 33, by maintaining the liquid state of the raw material to prevent the phenomenon of the raw material is hardened in the discharge pipe 38a The additional effect of preventing malfunctions can be achieved.

According to another embodiment of the present invention, the control unit 37 to increase the reverse rotational speed of the motor unit 70 by a predetermined multiple until a pressure less than the threshold value is detected through the sensor unit 36. While controlling, it is possible to change the increase multiple of the rotational speed within a predetermined section. The controller 37 may calculate an amount of change in pressure detected by the sensor unit 36 and change an increase multiple of the reverse rotational speed in accordance with the amount of change in pressure.

For example, the controller 37 may control the speed of the reverse rotational movement of the motor 34 to increase by a first increase multiple (1.5 times). In addition, the controller 37 may calculate a change amount of pressure detected through the sensor unit 36 for a predetermined time. If it is calculated that the detected pressure decreases, the controller 37 may reduce the first increase multiple in proportion to the change amount. Alternatively, if it is calculated that the detected pressure is the same or increased, the controller 37 may increase the first increase multiple in proportion to the change amount.

As such, the control unit 37 may prevent the overload of the motor unit 34 by efficiently controlling the rotational movement speed of the motor unit 34 according to the amount of pressure change when the forced inflow control is performed.

According to another embodiment of the present invention, the control unit 37 controls the reverse rotational speed of the motor unit 34 during the forced inflow control, and then the opening start time points of the first and second solenoid valves 35a and 35b. Can be set. The controller 37 may set an opening start time of the first and second solenoid valves in the closed state in proportion to an increase multiple of the rotational speed of the motor unit 34.

For example, when the control unit 37 controls the rotational movement speed of the motor unit 34 to increase the first increase multiple (1.5 times), the controller 37 sets the opening timing of the first and second solenoid valves in proportion to the first increase multiple. Can be set in seconds. That is, the controller 37 controls the rotational movement speed of the motor unit 34, and after 50 seconds, the first and second solenoid valves are set to be opened, and the third and fourth solenoid valves are controlled to be closed again, and then reversed. The rotating motor unit 34 may be controlled to rotate forward again. The controller 37 may perform such forced inflow control until a pressure below a threshold is detected through the sensor unit 36.

On the other hand, the second transfer portion 22 may be characterized in that the elastic support 500 is further provided. In this regard, it will be described with reference to FIG.

9 is a diagram illustrating an example of the elastic support part 500 installed in the second transfer part 22.

The elastic support part 500 may serve to mitigate an impact transmitted to the raw material P during the conveyor transfer process of the second transfer part 22 by being interposed at the lower end of the second transfer part 22.

To this end, the elastic support 500 may be installed on one side of the bearing frame 300, more specifically in the remaining position except for the vertex portion provided with the ball bearing 400 in the rectangular bearing frame 300 At least one may be installed. A detailed configuration of the elastic support 500 will be described with reference to FIGS. 10 to 14.

FIG. 10 is a view illustrating the elastic support part 500 of FIG. 9.

Referring to FIG. 10, the elastic support part 500 includes a support frame 540, four support plates 510, four pairs of support frames 520, and a support column 530.

The supporting frame 540 is supported by the supporting plate 510 installed at the lower side, and supports the upper frame 320 by using an elastic force when the upper frame 320 falls.

The supporting plate 510 supports the supporting frame 540 seated on the upper side and is supported by the supporting pillar 530 by the supporting frame 520 connected to the lower side.

That is, the supporting plate 510 seats the supporting frame 540 on the upper side thereof, and in response to the vibration or shock transmitted from the supporting frame 540, the supporting plate 510 is oriented in the horizontal direction (ie, the first frame 521a). Alternatively, vibration or shock may be attenuated by being absorbed by the support frame 520 sliding in the up and down direction (ie, the second frame 521b).

In some cases, the supporting frame 540 may be omitted, and in this case, the supporting plate 510 may directly support the upper disk 200.

In addition, the present invention is formed by varying the length of the first frame (521a) or the second frame (521b), to overcome the limitations of the existing elastic body that can reduce the impact by simply adjusting the height in the vertical direction The support position by the plate 510 can be freely adjusted not only in the vertical direction but also in the left and right directions.

The support frame 520 is connected to rotatably two frames of the first frame 521a and the second frame 521b at each lower portion of the four support plates 510 to support the plate 510. As described above, the support position of the support frame 540 by the plate 510 is determined by adjusting the length of the first frame 521a or the second frame 521b.

At this time, the upper part of the first frame 521a and the second frame 521b is connected to the lower part of the support plate 510, and the lower part of the first frame 521a is rotated on the upper side of the support column 530. The lower surface of the second frame 521b is connected and installed to enable horizontal sliding movement, and the lower side of the second frame 521b is connected to one side of the support pillar 530 so as to allow rotational and vertical sliding movement.

That is, the first frame 521a or the second frame 521b may be subjected to vibration or shock transmitted from the support plate 510 through a pivoting or sliding movement by elastic force on the upper surface or one side of the support pillar 530. The support pillar 530 is transferred.

The support pillar 530 is formed in the shape of a square pillar, and the lower portion of the first frame 521a is connected to the upper side so as to be rotated and horizontally slidably moved, and the lower portion of the second frame 521b is one side. It is connected to the rotational and vertical sliding movement in the installation, and the elastic force (ie, the cross-elastic portion 533 or vertical elastic portion 535) during the sliding movement of the first frame (521a) or the second frame (521b) Absorbs vibrations or shocks through.

Each of the supporting plate 510 or the supporting frame 520 is driven by the same method as the symmetrical structure of each other, and the contents described with respect to the one supporting plate 510 or the supporting frame 520 as described above are described. The same may be applied to the other support plate 510 or the other support frame 520, the description thereof will be omitted.

In addition, the elastic support 500 having the above-described configuration may be formed in a vertically symmetrical structure. In FIG. 13, only the upper portion of the support pillar 530 is illustrated, but each configuration is described above. The configuration associated with four support plates 510 and four pairs of support frames 520 as one would be equally applicable to the bottom of the support pillars 530.

11 and 12 are views illustrating the support pillar of FIG. 11.

Referring to FIG. 11, the support pillar 530 includes a pillar body 531, a cross groove 532, a cross elastic portion 533, four vertical grooves 534 (see FIG. 12), and four vertical elastic portions. 535 (see FIG. 12).

The pillar body 531 is formed in the shape of a square pillar, a cross groove 532 is formed on the upper portion, the vertical groove 534 is formed on each side.

The cross grooves 532 are recessed in a “+” shape in the upper portion of the pillar body 531, and a cross elastic portion 533 is inserted into the inner space.

The cross resilient portion 533 is formed in a shape corresponding to the shape of the cross groove 532 and is inserted into the cross groove 532, so that the lower side of the first frame 521a is rotatable on the upper ends of the four branches. It is connected and installed to absorb the vibration or shock transmitted from the first frame 521a by using the elastic force to reduce the vibration or shock.

The vertical groove 534 is formed in each of the surface of the pillar body 531 in the vertical direction, the vertical elastic portion 535 is inserted into the interior space.

The vertical elastic portion 535 is formed in a shape corresponding to the shape of the vertical groove 534 is inserted into the vertical groove 534, the lower side of the second frame 521b is connected to the upper outer side so as to be rotatable and elastic force By absorbing the vibration or shock transmitted from the second frame 521b to reduce the vibration or shock.

FIG. 13 is a cross-sectional view of the resilient cross part of FIG. 11.

Referring to FIG. 13, the cross elastic part 533 includes a cross case part 5313, an upper support part 5332, four upper elastic parts 5333, four upper elastic support parts 5340, and four upper connecting links. A part 5335 is included.

The cross case part 5313 has an inner space formed in an empty “+” shape and is inserted into the cross groove 532. The upper support part 5332, four upper elastic parts 5333, and four that are described later in the inner space are provided. Top elastic support parts 5340 are installed.

At this time, the length of each branch of the cross case portion 5311 is formed to be shorter than the length of each branch of the cross groove 532, as shown in Figure 11, the upper portion in the space formed on the outside of the cross case portion (5331) The connecting link portion 5335 may be disposed and may form a space for sliding movement.

The upper support part 5332 is formed of a cube, and is disposed at the center of the cross case part 5311, so that the upper elastic part 5333 is disposed outside each of the four surfaces, and supports the upper elastic part 5333. do.

The upper elastic part 5333 is disposed on each side surface of the upper support part 5332 to support the upper elastic support part 5340 by elastic force, thereby absorbing vibrations or shocks transmitted from the upper elastic support part 5344.

The upper elastic support part 5340 is disposed at each end of each branch of the internal space of the cross case part 5313, is supported by the elastic force of the upper elastic part 5333, and is provided between the upper connection link parts 5335. The upper connecting link portion 5335 is supported by the support bar 5336.

The upper link link portion 5335 is disposed at each end of each branch of the cross groove 532, and is provided between the side of the cross case portion 5313 and the support bar 5336 provided between the upper elastic support portion 5340. It is maintained at a predetermined interval by a), and the lower side of the first frame 521a is connected to the upper side so as to be rotatable, and each branch of the cross groove 532 meets in accordance with the vertical movement of the plate 510. Sliding along the groove of the cross groove 532 in the center direction.

14 is a view illustrating the vertical elastic part of FIG. 12.

Referring to FIG. 14, the vertical elastic part 535 includes a vertical case part 5331, a side support part 5332, a side elastic part 5435, a side elastic support part 5344, and a side connection link part 5345. do.

The vertical case portion 5331 is formed in a shape corresponding to the shape of the vertical groove 534 in which the inner space is empty, and the side support portion 5332, the side elastic portion 5431, and the side elastic support portion 5344 are formed from the lower side of the inner space. ) Are installed in order.

The side support part 5332 is formed of a cube, is disposed in a lower space of the vertical case part 5331, and a side elastic part 5435 is disposed on the upper side to support the side elastic part 5435.

The side elastic part 5343 is disposed above the side support part 5332, and supports the side elastic support part 5344 disposed above by the elastic force, thereby preventing vibration, shock, and the like transmitted from the side elastic support part 5344. Will be absorbed.

The side elastic support part 5344 is disposed above the inner space of the vertical case part 5331, is supported by the elastic force of the side elastic part 5435, and is provided between the side connecting link parts 5345. To support the side link portion (5345).

The side link link portion 5345 is disposed at an upper end of the vertical groove 534 and is provided between a lower side facing the vertical case portion 5331 and an upper side of the side elastic support portion 5344. It is maintained at a predetermined interval by a), and the lower side of the second frame 521b is connected to the outer side so as to be rotatable, and slides along the groove of the vertical groove 534 in the lower direction of the vertical groove 534. .

On the other hand, the pellet manufacturing apparatus (1) using the plastic dust according to the embodiments of the present invention further comprises a composition for repairing the structure including an acrylic binder for filling and repairing where the crack occurs when the crack occurs in the structure can do.

Here, the structure, the stirring unit 10, the melting unit 30 and the crushing unit 50 may correspond to this, but is not limited to this may correspond to each of the respective components constituting the present invention. .

The present inventors have found that there is no composition exhibiting satisfactory effects among the compositions having improved water resistance, waterproofness and crack resistance in a composition for repairing a structure that has existed conventionally. The inventors have invented a composition that exhibits satisfactory effects in both waterproof and crack resistance.

In the present invention, the acrylic binder may be an acrylic ester copolymer. The acrylic ester copolymer may be an acrylic ester copolymer having a CAS number of 30445-28-4. The present inventors are exploring various compounds that can be added to the composition for repairing building structures, the composition that can achieve both the water resistance and crack resistance that is an object of the present invention to solve when the composition comprises the acrylic ester copolymer Confirmed.

In the present invention, the composition may include 10 to 50 parts by weight of the acrylic binder, preferably 15 to 40 parts by weight, and more preferably 20 to 30 parts by weight.

The composition of the present invention may further include, in particular, EVA binder, butyl cellosolve, rosin, texanol and propylene glycol in order to achieve particularly waterproof and water resistant among the problems to be solved by the present invention. .

In the present invention, the EVA binder is preferably ethylene vinyl acetate, and the CAS number may be a compound having 24937-78-8.

The butyl cellosolve in the present invention may be a compound having CAS number 111-76-2.

In the present invention, the rosin refers to a natural resin obtained by distilling rosin, and any type of rosin may be included as a constitution for solving the problem of the present invention.

In the present invention, the texanol (TEXANOL) may be a compound having CAS number 25265-77-4.

In the present invention, the propylene glycol may be a compound having CAS No. 57-55-6.

The inventors have found that the effect of water resistance is particularly improved when EVA binder, butyl cellosolve, rosin, texanol and propylene glycol are further included as a composition of a building structure repair composition including an acrylic binder. .

Specifically, the composition is 0.01 to 10 parts by weight of EVA binder, 0.01 to 5 parts by weight of butyl cellosolve, 0.01 to 5 parts by weight of rosin, 0.01 to 5 parts by weight of texanol and 0.01 to 3 parts by weight of propylene glycol. It may include.

More specifically, the inventors confirmed that the effect of water resistance is remarkably improved when the composition further includes 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol. It was. That is, EVA binder, butyl cellosolve, rosin, texanol and propylene glycol, and 2-amino-2-methyl-1-propanol and 2-methylamino in the building repair composition containing the acrylic binder. When the 2-methyl-1-propanol is further included, the present invention has been completed through improved water resistance and water resistance.

In the present invention, the composition may include the 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol in a weight ratio of 15 to 20: 1, preferably 16 to 20 It may be included in a weight ratio of 1: 1, and more preferably in a weight ratio of 17 to 20: 1.

The 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol may be included in the composition in an amount of 0.1 to 5 parts by weight.

The present inventors confirmed that the composition can improve water resistance, particularly among the problems to be achieved by the present invention.

In addition, the composition for repairing the building structure containing the acrylic binder may further comprise ethylene glycol, butyl cellosolve (butyl cellosolve), calcium carbonate, titanium dioxide and water.

If the above-described composition has an excellent waterproof and water resistance effect, the present composition is characterized in that the crack resistance is improved. The butyl cellosolve is as described above.

In the present invention, the ethylene glycol (ethylene glycol) means a compound having a CAS number 107-21-1.

In the present invention, the calcium carbonate means a compound having a CAS number of 1317-65-3.

In the present invention, the titanium dioxide means a compound having a CAS number of 13463-67-7.

Specifically, the composition is 0.01 to 5 parts by weight of ethylene glycol, 0,01 to 5 parts by weight of butyl cellosolve, 20 to 50 parts by weight of calcium carbonate, 0.01 to 5 parts by weight of titanium dioxide and 0.01 to 10 parts of water It may include parts by weight.

The inventors came to embody the idea in natural extracts while exploring the composition for improving crack resistance. The present inventors confirmed that when the flaxseed slime or flaxseed slime extract is further included in the composition, the effect of crack resistance is significantly improved. That is, when the acrylic repair-containing composition for building repair includes ethylene glycol, butyl cellosolve, calcium carbonate, titanium dioxide and water, and flaxseed slime or flaxseed slime extract, improved crack resistance The present invention was completed through confirmation.

In the present invention, the flax (flax) is a perennial herb of the dicotyledonous rat Rat Asteraceae, the seeds are flat, long oval, yellowish brown.

The flaxseed mucus in the present invention can be prepared through a variety of methods, for example by scraping the mucus from flaxseed using a scraper (scraper) can be prepared flaxseed mucus.

In the present invention, the flaxseed slime extract may be prepared as follows.

1 g of flaxseed was poured into 50 L of purified water, stirred at 25 ° C. for 5 hours, filtered through a 300 mesh filter cloth, and precipitated by addition of the same amount of alcohol, preferably ethanol, to the filtrate, and then Whatman filter paper, for example, Watts. Bay filter paper NO. After filtration using 5 to dry to obtain a white powder form.

Conventionally, various uses are known as the use of flaxseed, but the effect of improving the crack resistance by including them in a composition for repairing building structures as in the present invention has not been known to date, and studies are insignificant.

Specifically, the composition may include 1 to 10 parts by weight of the flaxseed slime or flaxseed slime extract.

In addition, at least one additive selected from a dispersant, an antifoaming agent, an antimicrobial agent, a preservative, and a cryoprotectant within a range that does not impair the basic physical properties of the building structure repair composition.

In addition, the present invention S1) removing the deterioration of the surface of the building structure; And S2) the crack repairing of the structure may be performed by forming a crack repairing film by applying and drying the building structure repairing composition on the upper surface of the building structure from which the deterioration part is removed.

Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail. However, this embodiment is intended to illustrate the present invention in more detail, and the scope of the present invention is not limited to these examples.

Material preparation

Information on the main raw materials used in the building structure repair composition for the following Examples and Evaluation Examples is as follows.

1) Acrylic Binder: Acrylic ester copolymer CAS NO 30445-28-4

2) EVA Binder: Ethylene vinyl acetate CAS NO 24937-78-8

3) Butylcellosolve: CAS NO 111-76-2

4) TEXANOL: CAS NO 25265-77-4

5) Propylene glycol: CAS NO 57-55-6

6) ethylene glycol: CAS NO 107-21-1

Calcium carbonate: CAS NO 1317-65-3

8) titanium dioxide: CAS NO 13463-67-7

9) 2-amino-2-methyl-1-propanol: CAS NO 124-68-5

10) 2-methylamino-2-methyl-1-propanol: CAS NO 27646-80-6

11) Flaxseed Mucus

Flaxseed mucus was obtained by scraping mucus from flaxseed using a scraper.

12) Flaxseed Mucus Extract

1 g of flaxseed was poured into 50 L of purified water, stirred at 25 ° C. for 5 hours, filtered through a 300 mesh filter cloth, and precipitated by adding the same amount of ethanol to the filtrate. Filtration using 5 followed by drying yielded about 0.2 g of a white powder.

Example 1

5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 part by weight of texanol, 0.1 part by weight of propylene glycol and other thickening aids, with 30 parts by weight of an acrylic binder and stirring at a speed of 600 rpm. After slowly adding a pH adjuster, etc. in order, 50 parts by weight of calcium carbonate was added thereto and stirred at room temperature for 1 hour at a speed of 300 rpm to prepare a composition for repairing building structures.

Example 2

5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 part by weight of texanol, 0.1 part by weight of propylene glycol, 1 part by weight with 30 parts by weight of an acrylic binder and stirring at a speed of 600 rpm. 2-amino-2-methyl-1-propanol, 0.06 parts by weight of 2-methylamino-2-methyl-1-propanol and other thickening aids, pH adjusters, etc. were gradually added in order, and then 50 parts by weight of calcium carbonate, a filler, was added. Put and stirred at room temperature for 1 hour at a speed of 300rpm to prepare a composition for building structure repair.

Example 3

Put 30 parts by weight of the acrylic binder into the mixing agitation vessel and stir at a speed of 600 rpm, followed by 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water and other thickening aids, and pH adjusting agent. After slowly adding as much as 50 parts by weight of a filler calcium carbonate was stirred at room temperature for 1 hour at a speed of 300rpm to prepare a composition for building structure repair.

Example 4

30 parts by weight of an acrylic binder was added to the mixing agitator and 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water, 5 parts by weight of flaxseed slime and flaxseed slime extract After slowly adding a mixture and other thickening aids, pH regulators and the like in order to add 50 parts by weight of calcium carbonate filler and stirred at room temperature for 1 hour at a speed of 300rpm to prepare a building construction composition.

Evaluation example 1

After the deterioration part of the civil engineering structure was removed, the crack repair film was formed by coating and drying the composition for repairing the building structures of Examples 1 to 4 on the surface. The adhesive strength, crack resistance and slip resistance of the crack repair film thus obtained and the storage stability of the crack repair agent composition were evaluated based on the test method of the KS standard and KSL 1593, and the results are shown in Table 1 below. In addition, in the case of water resistance, the degree of water absorption inside the crack repair film was evaluated by a five-point scale method. Product X in Table 1 represents a product for repairing the building structure of the building structure of Company B, which is commercially available in Korea, and evaluated it as a comparison target with the compositions of Examples 1 to 4.

TABLE 1

As shown in Table 1, the building structure repair composition of Examples 1 to 4 can be confirmed that the water resistance, water resistance and crack resistance is improved compared to the product X, it is confirmed that there is no problem in storage stability and slip resistance It became. In particular, Examples 1 and 2 in the present invention can be confirmed that the better evaluation in water resistance and water resistance, Examples 3 and 4 can be confirmed that the better evaluation in crack resistance.

Although the above has been described with reference to the embodiments, those skilled in the art will understand that various modifications and changes can be made without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

10: stirring section
21: first transfer unit
22: second transfer unit
23: third transfer section
30: melting part
40: settling section
50: crushing unit
60: packing unit

Claims (2)

Melting unit for melting the raw material consisting of plastic dust in the form of a liquid;
Precipitating unit for converting the raw material in the liquid form to a solid form by immersing the raw material falling through the melting portion in the cooling water; And
In the pellet manufacturing apparatus using a plastic dust, comprising a pulverization unit for pulverizing the raw material converted into a solid form to produce plastic pellets,
Pellet manufacturing apparatus using the plastic dust is provided at the front end of the melting portion, the stirring unit for stirring the plastic dust; A first transfer part installed between the stirring part and the melting part, and configured to transfer the stirred plastic dust to the melting part through the stirring part; A second transfer part installed between the settling part and the pulverizing part and transferring the raw material in solid form precipitated in the settling part to the pulverizing part; A packing part installed at a rear end of the pulverizing part and packing the plastic pellets produced through the pulverizing part; And a third transfer unit installed between the pulverization unit and the packaging unit to transfer the plastic pellets to the packaging unit.
The stirring unit is provided in an inverted conical shape, the upper portion is formed with an opening through which the plastic dust is introduced, the central shaft is formed along the height direction, the rotary shaft is provided with a stirring blade for stirring the plastic dust is provided ,
The melter is installed at a position higher than the settling portion, the discharge hole is formed on one side disposed in the vertical upper portion of the settling portion to discharge the molten raw material in liquid form through the discharge hole to freely fall into the settling portion,
One end of the first transfer part is connected to the stirring part and the other end thereof is connected to the melting part, and a feed inclined surface which rises toward the melting part from the stirring part is formed.
The precipitation unit, when the coolant is stored in the raw material of the liquid form free-falling from the melting portion is precipitated in the cooling water to cool the raw material in the liquid form,
The second conveying part has one end connected to the settling part and the other end connected to the pulverizing part, and a conveying inclined surface which rises from the settling part toward the pulverizing part is formed, and a conveyor belt having a mesh structure along the conveying inclined surface. Is installed, the cooling material remaining in the raw material is controlled to fall through the through-holes of the mesh structure while controlling the raw material is transferred in a continuous strip shape as the raw material cooled in the solid form is attached to the mesh structure ascending transfer And, the guide frame of the '''shape is formed on the upper portion of the conveyor belt to induce the belt-shaped raw material to be transferred in a predetermined direction,
The melting unit may include a heating unit for heating the plastic dust transferred through the second transfer unit in a liquid form; A motor unit installed through a connection port formed at one side of the heating unit to discharge the raw material in the form of liquid stored in the heating unit by rotating in a forward or reverse direction or recovering the raw material into the heating unit; A discharge pipe having one end connected to the motor unit and the other end connected to the discharge hole to discharge the raw material discharged from the heating unit through the discharge hole when the motor unit is rotated forward; A recovery tube having one end connected to the motor unit and the other end connected to one end of the discharge pipe to recover raw material remaining in the discharge pipe to the heating unit when the motor unit is reversely rotated; A first solenoid valve installed at one end of the discharge pipe; A second solenoid valve installed at the other end of the discharge pipe; A third solenoid valve installed at one end of the recovery pipe; A fourth solenoid valve installed at the other end of the recovery pipe; A sensor unit installed at one side of the discharge pipe between the first solenoid valve and the second solenoid valve; And a control unit for controlling the operation of the melting portion,
The control unit,
When the set value for the temperature and the raw material discharge set by the user is received, the first solenoid valve and the second solenoid valve are opened and the third solenoid valve and the fourth solenoid valve are closed. By controlling to rotate in a forward direction at a set speed is controlled to discharge the raw material of the liquid form stored in the heating unit through the discharge pipe to the discharge hole,
The first solenoid valve and the second solenoid valve are closed when the sensing data of the internal pressure of the discharge pipe measured from the sensor unit is compared with a preset threshold value and the sensing data exceeds the threshold value. And the third solenoid valve and the fourth solenoid valve are controlled to allow the motor unit to rotate in a reverse direction so that the raw material remaining in the discharge hole is recovered into the heating unit through the recovery pipe. Perform control,
While performing the forced inflow control, the motor unit is controlled to rotate in reverse direction until sensing data below the threshold value is sensed through the sensor unit, and the speed of the reverse rotational movement speed is changed according to the change amount of pressure detected through the sensor unit. An apparatus for producing pellets using plastic dust, wherein the end point of forced inflow control is set based on the magnitude of the increase drainage speed of the rotational speed of the motor unit while changing the increase drainage.
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