KR101816786B1 - Manufacturing method of environmentally eco synthetic wood using citrus peel - Google Patents

Abstract

The present invention relates to an eco-friendly synthetic wood material preparing method using citrus peels. The eco-friendly synthetic wood material is used to recycle citrus peels for recycling, uses a unique management method for bypassing the citrus oil extracted from the citrus peels, and reserves and utilizes the unique directionality and insecticide of the citrus peels. According to the present invention, the eco-friendly synthetic wood material preparing method includes: a primary mixture preparing step of preparing a primary mixture including wood powder with the particle size of 40 to 100 mesh and moisture content of 4 to 8%, a resin made of polypropylene or polyethylene, and additives; a secondary mixture preparing step of mixing 20-30 parts by weight of the citrus peel powder prepared by drying and grinding the citrus peels with 100 parts by weight of the primary mixture while making the water content of the citrus peel powder be 4% and the average particle size of the citrus peel powder be 1/5 to 1/8 to that of the wood powder to fill a gap space with the wood powder in a pallet preparing step using a molding operation to be executed in the future; a secondary mixture stirring step of stirring the secondary mixture; a pellet preparing step of preparing the pellets by extruding and shaping the stirred secondary mixture; and a synthetic wood molding step of molding the synthetic wood material in a determined shape by extruding the pellets prepared in the pellet preparing step.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for producing an environmentally friendly synthetic wood using a citrus peel,

The present invention relates to a synthetic wood, and more particularly, to an unique management method for extracting only citrus oil from a citrus peel while detoxifying and recycling a citrus peel as a new material for synthetic wood, The present invention relates to a method for producing an environmentally friendly synthetic wood using a citrus peel,

In the case of natural timber used as exterior or interior material of a building such as a floor board, a ceiling board, a door, a door frame, a window, a fence and the like, a wood-specific material gives a soft and cozy atmosphere, .

However, such natural woods are gradually getting depleted as the production amount increases, and there is a problem in that inherent physical properties such as water resistance, heat resistance, impact strength, bending strength, flame retardancy, and antibacterial properties are poor.

In order to solve this problem, recently synthetic wood having a texture and appearance similar to natural wood has been disclosed. In the case of synthetic wood, wood, pulverized wood such as wood or rice straw, cornstalks and pulp, and typical thermoplastic resin (PP), polyethylene (PE), and ABS, and is manufactured by extrusion processing.

In recent years, eco-friendly synthetic woods have been disclosed in which novel green materials for improving the functions of antibacterial, deodorizing, and homeostatic properties have been discovered and applied to such synthetic wood. Korean Patent No. 1299521, for example, discloses a technique in which loess powder and clay powder are used for improving antibacterial properties, deodorizing property and durability. In Korean Patent Laid-Open Publication No. 2014-0023036, The techniques used have also been disclosed. Korean Patent Laid-Open Publication No. 2014-0008904 discloses a technique including EAF and EM as a useful microorganism to improve water purification ability, homeostasis and antibacterial activity.

However, the materials newly applied to the environmentally friendly synthetic woods have a great advantage in that they can improve the functions such as antimicrobial property, deodorization property and homeostasis compared with the existing synthetic wood, but they are quite heterogeneous materials. Although it may be appropriate, it is difficult to substitute a part of wood flour, so there is little technical significance in terms of resource recycling.

Therefore, it is meaningful in terms of resource recycling because it can substitute a part of wood powder because it is a natural material having similar characteristics to wood, while improving environmentally friendly functions. If possible, new recyclable materials that are friendly to consumers and a synthetic wood And the like.

Korean Patent No. 1299521 (2013.08.19)

Accordingly, the present invention has been made in order to overcome the above-mentioned problems of the related art, and an object of the present invention is to provide a novel method for extracting citrus peel from fresh citrus peel as a new material for synthetic wood, The present invention provides a method for manufacturing an environmentally friendly synthetic wood using a citrus peel which is capable of preserving the inherent directionality and insolubility of the citrus peel by the management method of the present invention.

In order to accomplish the above object, the present invention provides a method of manufacturing an environmentally friendly synthetic wood comprising the steps of: pulverizing a wood powder having a particle size of 40 to 100 mesh and having a moisture content of 4 to 8% and a polypropylene or polyethylene A first mixture preparation step of producing a first mixture comprising a resin and an additive; The citrus peel powder is prepared by mixing and drying 20-30 parts by weight of the citrus peel powder prepared by drying and crushing the citrus peel with respect to 100 parts by weight of the primary mixture, wherein the citrus peel powder has a water content of 4% 1/8 particle size, so that the pellet can be partially buried in the pellet production step by a future extrusion process; A second mixture agitation step of agitating the secondary mixture; Pelletizing the pellet by extruding and molding the agitated secondary mixture; And a synthetic wood molding step of molding the pellets produced in the pellet production step into synthetic wood having a predetermined shape while extruding the pellets.

Herein, the citrus oil is extracted from the citrus peel before crushing the citrus peel into a citrus peel powder, and then transferred and temporarily stored separately from the de-oiled citrus peel through a bypass line. During the second phase of the second mixture stirring, To the mixture so that the synthetic wood to be molded in the future has a function of orienting and insectproofing.

A crushing step of crushing the citrus peel into a form larger than that of the citrus peel without drying before crushing the citrus peel into a powder of citrus peel; A citrus oil extraction step of extracting citrus oil from crushed citrus peel using hexane as a solvent; A citrus oil bypassing step of transporting and temporarily storing the citrus oil extracted from the citrus peel separately from the de-oiled citrus peel through a bypass line; Further comprising a citrus oil addition step of diluting citrus oil temporarily stored in the latter half of the secondary mixture stirring step and adding the citrus oil to the secondary mixture under stirring, wherein the pellet preparation step comprises adding the citric oil to the agitated secondary mixture Is added to the pellet to produce a pellet by hot extrusion and molding at a temperature at which the resin can be melted. The citrus oil is added so that the loss of the citrus oil by hot extrusion is minimized immediately before the pellet preparation step, And a preliminary extruding step for extruding is further carried out.

Further, the method may further include a starch removing step of removing starch by reacting beta-glucanase with the de-oiled citrus peel after proceeding with the citrus oil extraction step.

Also, the de-oiled citrus peel is prepared as a powdery citrus fruit powder through a washing step of washing the citrus peel, a drying step of drying the washed citrus peel, and a pulverizing step of pulverizing the dried citrus peel, The water is added to the crushed squirt powder in the form of high temperature steam and compressed in a mold to form a disk-shaped squirt block having a diameter of 10 to 15 cm, wherein the squirt block has a hemispherical shape And the laminated protrusions and the lamination grooves of the laminated protrusions and the lamination grooves are formed so that a plurality of laminated protrusions and laminated grooves are formed, The water content may be reduced to 4% or less by a drying process.

The tangerine shell dryer used for drying the citrus peel washed in the drying step may include a drum main body having an inlet and a draw-out port for drawing after the citrus peel is drawn in, And a screw-type guide vane provided at a lower position than the inlet and guiding the citrus peel to move from the inlet to the outlet when the drum body rotates, wherein a plurality of vibrators are installed on the outer surface of the drum body, The guide vane is provided with a plurality of extension portions that are exposed to the outside through the wall body at a plurality of points, Each of the extension portions is provided with a vibrator to guide the guide wing To can be characterized in that it induced to move smoothly toward the outlet, and at the same time so it does not stick the citrus peel please press the guide wings.

The method of manufacturing eco-friendly synthetic wood using the citrus peel according to the present invention has a great significance in terms of recycling resources in which citrus peel has been unearthed as a new material for synthetic wood, and in particular, in terms of finding new recyclable materials familiar to consumers It can give a bigger meaning.

In addition, the present invention can preserve the inherent orientation and longevity possessed by the citrus peel as it is by recycling the citrus peel as a material for synthetic wood while extracting only citrus oil from the citrus peel and detaching it separately. .

1 is a conceptual diagram for explaining the concept of a method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention.
2 is a flow chart for explaining a method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention.
FIG. 3 is a flowchart for explaining a method for manufacturing an orange peel powder in a process for producing environmentally-friendly synthetic wood according to an embodiment of the present invention
FIG. 4 is a view illustrating a configuration of an environmentally-friendly synthetic wood manufacturing system used in a method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention
FIG. 5 is a perspective view for explaining a metal block in a method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention. FIG.
6 is a view for explaining a work area for removing residual pesticide residues of citrus peel in the pesticide removing step of the method for manufacturing environmentally friendly synthetic wood according to the embodiment of the present invention
FIG. 7 is a view for explaining apparatuses used in the pesticide removal step of the method for manufacturing environmentally friendly synthetic wood according to the embodiment of the present invention
8 is a sectional view for explaining the constitution of the citrus peel dryer used in the drying step of the citrus peel of the method for manufacturing environmentally friendly synthetic wood according to the embodiment of the present invention

The method of manufacturing eco-friendly synthetic wood using citrus peels according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic structure.

Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a conceptual diagram for explaining the concept of a method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention.

As shown in the drawings, the method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention is a method of manufacturing an environmentally friendly synthetic wood by mixing a large amount of citrus peel, which is discarded in a mountainous region, As a useful recycling resource. In addition, it is possible to preserve the inherent directionality and insolubility of the citrus peel without any additional synthetic additives, and thus to provide an outer cover material for buildings such as floorboards, ceiling boards, doors, door frames, windows, fences, railings, Or synthetic wood used as an interior material.

Hereinafter, a method for manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention will be described in detail.

FIG. 2 is a flow chart for explaining a method for manufacturing environmentally-friendly synthetic wood according to an embodiment of the present invention, and FIG. 3 is a flowchart for explaining a method for manufacturing an environmentally-friendly synthetic wood according to an embodiment of the present invention. FIG. 4 is a block diagram of a system for manufacturing environmentally friendly synthetic wood used in the method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention, and FIG. 6 is a view for explaining a working area for removing residual pesticide residues of citrus peel in the pesticide removing step of the method of manufacturing environmentally friendly synthetic wood according to the embodiment of the present invention, FIG. 1 is a block diagram for explaining apparatuses used in the pesticide removal step of the method for manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention. And FIG. 8 is a cross-sectional view for explaining the constitution of a citrus peel dryer used in the step of drying the citrus peel of the method for manufacturing environmentally friendly synthetic wood according to the embodiment of the present invention.

As shown in FIG. 2, the method for manufacturing an eco-friendly synthetic wood according to an embodiment of the present invention includes a step of preparing a first mixture (S10), a step of preparing a second mixture (S11) (S12), a citrus oil addition step (S13), a preliminary extrusion step (S14), a pellet production step (S15), and a synthetic wood forming step (S16).

As can be seen from this configuration, as shown in FIG. 2, the citrus fruit powder produced from citrus peel is used as one of the main materials of the synthetic wood. Further, S3 and S4 in FIG. 3 and S13 in FIG. The citrus peel is extracted from the citrus peel as it is, and the citrus peel is separately detoxified and added to the citrus peel, thereby preserving the inherent directionality and longevity of the citrus peel.

Hereinafter, a method of manufacturing an environmentally friendly synthetic wood according to an embodiment of the present invention will be described in each of the above steps.

In the step of producing the primary mixture (S10), a mixture of powdered wood powder having a particle size of 40 to 100 mesh and having a moisture content of 4 to 8%, a resin made of thermoplastic polypropylene or polyethylene and a primary mixture .

Herein, the wood powder may be produced directly from the wood or preferably from recycled wastes generated after processing of the wood, gypsum and wood, and may include 55 to 85 parts by weight based on 100 parts by weight of the first composition.

The resin is made of polypropylene (PP), high density polyethylene (HDPE), or polyethylene teraphthalate (P.E.T.), and is made up to contain 10 to 30 parts by weight per 100 parts by weight of the primary mixture. Even in the case of the resin, it is preferable to melt the waste plastic to make a compound, store it, and recycle it.

The additive may be added with various kinds of additives for the purpose of producing a synthetic wood and improving the function of the resultant. In order to easily form a bonding structure when the wood and the resin are stirred, MALEIC ANHYDRIDE PP, In the process of synthetic wood processing, antioxidant for antioxidant for thermal stabilization and improvement of weather resistance in finished product may include antioxidant of phosphate system and calcium stearate, and light stabilizer for photostabilization of finished synthetic wood May contain bis 2.2.6.6-tetramethyl-4-piperidyl (Bis 2.2.6.6-tetramethyl-4 piperidyl), and may contain an ultraviolet absorber for ultraviolet absorption by sunlight of the finished synthetic wood, A polyethylene wax or a polypropylene wax may be contained, and an inorganic pigment for coloring may be contained It can hamdoel.

In the step of preparing the secondary mixture (S11) in which the citrus peel powder is added, the citrus peel powder prepared by drying and crushing the citrus peel is mixed with the primary mixture through the hopper 22a into the mixer 22. It is preferable that the citrus peel powder is 4% or less so as not to have a high moisture content as compared with the primary mixture, and it is preferable to mix 20 to 30 parts by weight with respect to 100 parts by weight of the primary mixture. And, importantly, the citrus fruit powder has an average particle size of 500 mesh or less, which is at least 1/5 of the average particle size of the wood powder contained in the primary composition, and preferably 1/5 to 1/8 Size average particle size of 500 mesh to 800 mesh. If the citrus fruit powder is made of a powder having an average particle size much smaller than that of wood powder, then in the pellet manufacturing step (S15) by the subsequent extrusion process, the citrus fruit powder substantially fills the interstices between the wood particles, And a self-bonding force is generated by only a slight amount of water or the action of the molten resin, thereby performing the function of bonding wood powder. Such a citrus fruit powder should be processed through rather complicated steps shown in FIG. 3 so that the citrus fruit powder can be harmonized with other materials constituting the synthetic wood rather than merely crushed by the crushing of the citrus peel, which will be described later in detail.

In the secondary mixture agitation step S12, the mixer 22 is further moved into the mixer 22 to mix the primary mixture and the mixture of the mixture of the mixture of the mixture and the mixture of the mixture. Here, the mixer 22 is generally used for stirring concrete, and stirs each material by centrifugal rotation. If the mixer 22 that performs the centrifugal rotation operation is provided, it is possible to completely solve the problem of mixing due to nonuniformity of the weight and particle size of the secondary mixture.

In the citrus oil addition step (S13), the citrus oil extracted from the citrus peel is added to the secondary mixture in the mixer (22) while stirring, before the citrus peel is crushed into the citrus peel powder. The citrus oil was transferred through the bypass line 14b separately from the de-oiled citrus peel immediately after being extracted from the oil extracting device 14 and stored in the storage container 14a, and the secondary mixture stirring step S12 Lt; / RTI > in the second half of the stirring mixture. The synthetic wood thus produced is imparted with the inherent directionality and longevity of the citrus peel by citrus oil. Herein, the citrus oil is separately managed from the citrus fruit powder in order to remove the starch to prepare the citrus peel as the citrus fruit powder, and to avoid the loss during drying and crushing.

In the preliminary extrusion step (S14), the preliminary extrusion is performed on the secondary mixture by a cold extruder (23) which does not apply heat before the pellet production step (S15) by hot extrusion and molding. The reason why the preliminary extrusion is performed by the cold extruder 23 without applying such heat is to minimize loss of the citrus oil by hot extrusion. If the preliminary extrusion step (S14) by cold is not advanced and high temperature heat of 180 DEG C or more is applied to melt the resin, the upper part of the diluted citrus oil is not yet solidified, The resin particles in the form of the compound are exposed to high temperature heat without being protected from the surface, and the possibility of evaporation increases. However, if the preliminary extrusion step (S14) precedes the cold extrusion step, the resin particles of the wood powder, the citrus pulp powder and the compound form are aggregated, and the citrus oil buried in the surface of the particles is concealed therein. Even if the heat is applied at high temperature, The exposure is minimized and the amount of evaporation can be significantly reduced. Herein, the cold extruder 23 for performing cold extrusion is a system in which a secondary twin screw extruder in which two screws are arranged in parallel is used to smoothly extrude a secondary mixture in a state in which the resin is not melted and the fluidity is relatively low .

In the pellet preparation step (S15), the secondary mixture added with the citrus oil and stirred is preliminarily extruded to heat the resin to a temperature at which the resin can be melted while maintaining the state of being already agglomerated, and the mixture is extruded in the hot extruder , And then the pellet is molded in the pellet molding die 25. As a result, the synthetic wood can be molded in earnest.

In the synthetic wood forming step (S16), the pellets formed in the previous step are extruded from the synthetic wood molding die 26 and molded into synthetic wood having a predetermined shape. The thus formed synthetic wood has a smooth surface, which is passed through a brushing roller 27, if necessary, so as to have a somewhat rough surface. This recycles the discarded citrus peel, thus completing the production of eco - friendly synthetic wood which has a fragile citrus flavor and directionality.

On the other hand, in order to produce the citrus peel powder suitable for the production of synthetic wood from the initial citrus peel as described above, a somewhat complicated and careful process as shown in Fig. 3 proceeds. This will be described in detail below.

As shown in FIG. 3, the method for producing a citrus peel powder suitable for producing synthetic wood from a citrus peel comprises a pesticide removing step (S1), a crushing step (S2), a citrus oil extracting step (S3) A detouring step S4, a starch removing step S5, a cleaning step S6, a drying step S7, a crushing step S8, and a cubic block molding step S9.

In the pesticide removal step (S1), residual pesticide remaining in the collected citrus peel is removed. For this purpose, as shown in FIG. 6, a square area of one hectare or more in which sunlight is well outdoors is secured as a work area, and these areas are divided into a unit area Z1 having a length of 5m and a length of 5m. A tensometer (T) is provided at the center of the unit zone to measure the moisture of the soil in each unit zone (Z1), and the water sprinkler (S) is disposed at each point where the vertex of the unit zone (Z1) . When such a work area is available, a mesh sheet is laid across the work area and the collection of citrus peels is evenly laid out and sunbathed by exposure to intense sun for 3 days. A significant portion of the residual pesticide is then removed. The cleaning water is sprayed through the sprinkler (S) once a day for the citrus peel and evaporated, thereby maximizing the removal of residual pesticide. At this time, the amount of water sprayed in the sprinkler (S) is determined by the unit (Z1) through the measurement of the tensometer (T). When the humidity of the land is increased by 25 to 30% It is regarded as added and water supply is stopped. As shown in FIG. 7, a plurality of tensimeters T and sprinklers S installed in each unit zone Z1 are controlled by a controller C at the center, The controller C measures the humidity of the land in the tensor meter T relatively lower than the other unit zone Z1 and the controller C additionally operates the nearby sprinkler S only for the unit zone Z1, It matches the humidity with the place. Then, the citrus peels laid in the work area were collected and put into the first washing machine 11 in the synthetic wood manufacturing system shown in FIG. 4 to carry out the first washing with the washing water and the second washing with the pesticide removing agent After that, the third washing is performed again by washing water. The remaining pesticide contained in the citrus peel is then almost completely removed. Thereafter, the citrus peel from which the pesticide residues have been removed is transferred to the first high-temperature steam sterilizer 12 for sterilization treatment. As such, the present invention provides a safe and environmentally friendly synthetic wood product by thoroughly removing the pesticide residues present in the citrus peel in the beginning through a strict and demanding management including a systematic sunbathing process using a tensiometer (T) and a sprinkler (S) You can.

In the crushing step (S2), the crushed citrus peel is shredded in a crusher (13) connected to the first high-temperature steam sterilizer (12) before crushing the crushed citrus peel into powder form. The crushing process is performed without a separate drying process, and the tangerine peel is almost torn so that the citrus oil extraction in the next step can be performed more smoothly.

In the citrus oil extracting step (S3), the citrus oil is extracted as much as possible from the citrus peel according to a solvent extraction method in which hexane is used as a solvent in the oil extracting device (14). To this end, in the oil extracting apparatus 14, citrus oil is extracted by adding hexane to the crushed citrus peel, and a citrus oil having high purity is obtained through a continuous process of distilling the extracted citrus oil.

In the citrus oil bypassing step S4, the citrus oil extracted from the citrus peel is transferred separately from the de-oiled citrus peel through the bypass line 14b and temporarily stored in the storage container 14a. The bypass line 14b is directly connected to the mixer 22 from the oil extractor 14 and the storage vessel 14a is installed in the middle of the bypass line 14b. In the case of the storage container 14a, in addition to simply storing the citrus oil, a small amount of the extracted citrus oil is diluted to 50 to 70 times, thereby facilitating the transfer and facilitating the mixing with the secondary mixture. To this end, the storage container 14a is provided with a diluent supply nozzle and a valve.

In the starch removing step (S5), the starch removing device (15) reacts beta-glucanase with the de-oiled citrus peel after the step of extracting the citrus oil (S3) to remove starch. When the starch is removed from the citrus peel through this step, it is possible to prevent the function of the melted resin from being weakened due to the interference of the starch in the process of binding the wood powder with the citrus fruit powder. When the synthetic wood is installed in the outdoor structure, It is possible to prevent the problem of being damaged by insects.

In the washing step S6, washing water is added in the second washing machine 16 to remove beta-glucanase added for starch removal in the previous step.

In the drying step (S7), as shown in FIG. 8, the citrus peel is dried by a freshly developed citrus peel dryer 17 by applying a pop-up machine suitable for drying the citrus peel. The tangerine shell dryer 17 includes a casing 17h having a large capacity infrared ray lamp 17i for emitting a strong infrared ray to be installed at a lower portion of a front side of the inner space and a rear side portion to apply heat at a high temperature, And a drum body 17a which is rotatably installed in the inner space of the drum body 17g by being laid down by the gear assembly 17g and whose outlet 17c is lower than the inlet 17b. The drum body 17a moves the citrus peel to the outlet 17c by the centrifugal force when rotating, and the screw-type guide vane 17d is installed inside the drum body 17a to guide the movement of the citrus peel into a spiral shape. It should be noted that a plurality of vibrators 17f are provided on the outer surface of the drum body 17a so that the citrus peel does not adhere to the inner surface in a dried state and smoothly moves toward the outlet 17c. Further, the guide vane 17d has extension portions 17e that are exposed to the outside through the drum body 17a at a plurality of points. Each of the extension portions 17e is provided with a vibrator 17f, So that the wings 17d can be vibrated. As a result, the guide vane 17d is prevented from being stuck in a state where the citrus peel is not dried, and the delivery to the outlet 17c is further smoothly performed.

In the pulverization step (S8), the micro-pulverizer (18) pulverizes the dried citrus peel in the previous step to 500 to 800 mesh. Here, in order to smoothly perform the crushing process of the micro-crusher 18 on the citrus peel into small-sized citrus peel powder, the citrus peel should be thoroughly dried in the first crushed state through the previous steps.

As described above, when the citrus peel is made into a citrus peel having a size of 500 mesh to 800 mesh, which is 1/5 to 1/8 of the grain size of the grain, by the micro-crusher 18, the grain size of the citrus peel is at least 1/5 In the pellet production step (S15) by the extrusion process, the citrus fruit powder sufficiently fills the crevice space between the wood particles, and the synthetic wood tissue becomes dense and self-bonding force is generated by only a little water or the action of the molten resin, To perform the adhesive function.

In step S9, the hot water steam in the high-temperature steam generator 19 is sufficiently heated in the form of high-temperature steam until the paste is formed into a paste form in the crushing step S8. ) To form a disc-shaped circumscribing block 20B having a diameter of 10 to 15 cm. As shown in FIG. 5, the metal pipe block 20B has hemispherical lamination protrusions 201a and lamination grooves 201b corresponding to the upper surface and the lower center portion. Thus, the metal pipe blocks 20B can be stacked on each other and stored. In addition, a cut-away portion 202 is formed along the surface of the metal block 20B so as to be used equally. Then, the metal blocks 20B formed in the metal mold 20 for forming an ornamental block are transferred to the storage device 21 by a conveyor, and are dried to a moisture content of 4% or less And stored. This completes all the steps to make a citrus fruit powder with citrus peel bonded to synthetic wood. The citrus fruit powder thus stored in the form of a citrus block is supplied to the mixer 22 through the hopper 22a in the future and mixed and stirred with the primary mixture to become a secondary mixture for the synthetic wood.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

11: first washer 12: first high temperature steam sterilizer
13: Crusher 14: Oil extraction device
14a: Storage container 14b: Bypass line
15: starch removing device 16: second washing machine
17: Tangerine peel drying device 18: Micro grinder
19: High-temperature steam generator 20: Mold for molding a pipe
21: Storage device 22: Mixer
22a: hopper 23: cold extruder
24: Annual extruder 25: Mold for pellet molding
26: Mold for molding synthetic wood 27: Roller for brushing
S: Sprinkler T: Tensiometer

Claims (7)

A step of preparing a primary mixture comprising powdered powder having a particle size of 40 to 100 mesh and having a moisture content of 4 to 8%, a resin made of polypropylene or polyethylene, and an additive;
The citrus peel powder is prepared by mixing and drying 20-30 parts by weight of the citrus peel powder prepared by drying and crushing the citrus peel with respect to 100 parts by weight of the primary mixture, wherein the citrus peel powder has a water content of 4% 1/8 particle size, so that the pellet can be partially buried in the pellet production step by a future extrusion process;
A second mixture agitation step of agitating the secondary mixture;
Pelletizing the pellet by extruding and molding the agitated secondary mixture;
And a synthetic wood molding step of molding the pellets produced in the pellet production step into synthetic wood having a predetermined shape while being extruded,
Citrus oil is extracted from the citrus peel before crushing the citrus peel into a citrus peel powder, and then transferred and temporarily stored separately from the de-oiled citrus peel through a bypass line. After the secondary mixture is stirred, Wherein the synthetic wood which is formed in the future has a function as a direction and insect proofing function. delete The method according to claim 1, wherein, for extraction and addition of the citrus oil,
A crushing step of crushing the citrus peel into a form larger than that of the citrus peel without a drying process before crushing the citrus peel into powdery citrus peel powder;
A citrus oil extraction step of extracting citrus oil from crushed citrus peel using hexane as a solvent;
A citrus oil bypassing step of transporting and temporarily storing the citrus oil extracted from the citrus peel separately from the de-oiled citrus peel through a bypass line;
Further comprising a citrus oil addition step of diluting the citrus oil temporarily stored in the latter half of the secondary mixture stirring step and adding the diluted citrus oil to the secondary mixture while stirring,
The pellet is prepared by pelletizing the secondary mixture with the addition of the citrus oil and stirring the mixture at a temperature at which the resin can be melted, thereby minimizing the loss of the citrus oil by hot extrusion immediately before the pellet preparation step Wherein the preliminary extruding step of adding the citrus oil to the agitated secondary mixture without heating is further performed. The method of claim 3,
Further comprising a starch removing step of reacting beta-glucanase with the de-oiled citrus peel after proceeding with the citrus oil extraction step to remove starch therefrom. The method of claim 3,
The de-oiled citrus peel is prepared as a powdery citrus fruit powder through a washing step of washing the citrus peel, a drying step of drying the washed citrus peel, and a pulverizing step of pulverizing the dried citrus peel,
The water is added to the crushed squirt powder in the form of high-temperature steam and compressed in a mold to form a disc-shaped circumferential block having a diameter of 10 to 15 cm. The circumferential block has a shape corresponding to the top and bottom A plurality of hemispherical lamination protrusions and lamination grooves are formed so that a plurality of the lamination protrusions can be stacked and stored,
The method for manufacturing an eco-friendly synthetic wood using a citrus peel according to claim 1, wherein the molded citrus peel block is dried so as to have a water content of 4% or less through a drying process so as to be immediately mixed with the primary mixture and stirred. 6. The method of claim 5,
The citrus peel dryer used for drying the citrus peel washed in the drying step comprises an infrared lamp for emitting infrared rays and a casing provided on the lower portion of the inner space and the upper portion of the rear portion to apply heat at a high temperature, A drum body having an inlet and an outlet which are drawn out after a citrus peel is drawn out, and a drum body rotatably installed in a state in which the drum body is laid down, wherein the outlet is slanted in a lower form than the inlet, and when the drum body rotates, And a plurality of vibrators are provided on the outer surface of the drum body so as to prevent the inner surface of the drum body from being pressed against the inner surface of the drum body in a dry state, Wherein the guide vane has a plurality of points, And a vibrator is additionally installed in each of the extended portions to vibrate the guide vane so that the citrus peel does not adhere to the guide vane and smoothly moves toward the outlet. Wherein the method comprises the steps of: 6. An eco-friendly synthetic wood using a citrus peel, characterized in that it is produced by an eco-friendly synthetic wood manufacturing method using the citrus peel of any one of claims 1 and 3 to 6.

Images