KR100472078B1 - Apparatus and method for reproducing wood waste include construction waste - Google Patents

Abstract

The present invention relates to a wood waste recycling apparatus and method thereof included in construction wastes, and an object thereof is to produce wood chips and sawdust recyclable from wood waste.

The wood waste recycling apparatus included in the construction waste according to the present invention includes a wood waste first transport conveyor 20 for transporting wood waste, which is a raw material; A primary crusher 30 for receiving and crushing wood wastes transported by the first transport conveyor; A magnetic separator for sorting metal sludge contained in the crushed wood by the primary crusher; A primary drum screen (50) for sorting the crushed wood passing through the magnetic separator into sawdust and crushed wood of sawdust or more; A second conveying conveyor (60) for conveying crushed wood passing through the primary drum screen; A secondary drum screen (70) for sorting the crushed wood carried by the second conveying conveyor into wood chips and crushed wood having a particle size greater than or equal to the wood chips; A wood chip conveying conveyor (73) for conveying and stacking the wood chips selected by the secondary drum screen; A third conveying conveyor (80) for conveying the crushed wood passing through the secondary drum screen; A secondary crusher 90 which produces sawdust by crushing crushed wood transported along the third conveying conveyor; And, it comprises a sawdust transfer / loading means 100 for transporting the sawdust crushed by the secondary crushing means to a loading place. As a result, by recycling the wood waste into wood chips and sawdust, which are recycled by an automated process, it is possible to reduce the environmental pollution caused by wood waste, and to generate the cost of recycling.

Description

Wood waste recycling apparatus included in construction waste and its method {APPARATUS AND METHOD FOR REPRODUCING WOOD WASTE INCLUDE CONSTRUCTION WASTE}

The present invention relates to a wood waste recycling apparatus and method included in construction waste, and more particularly, wood waste recycling apparatus contained in construction waste to recycle wood waste into usable recycled products (wood chips, sawdust) and It is about a method.

In general, construction wastes are generated from the dismantling of construction structures of buildings and civil works, and in particular, in recent years, a large amount is generated by active reconstruction of apartments according to the urban development plan.

Construction wastes generated during the reconstruction of construction structures destroyed by floods, etc. and the reconstruction of old buildings are mixed with soil, waste concrete, rebar, styrofoam, waste wood, vinyl and paper.

Among these construction wastes, wood waste, earth and sand, and waste concrete can be recycled, thereby reducing the cost of purchasing raw materials by recycling them with other types of construction waste.

However, since it is difficult and inconvenient to sort construction wastes by type, most companies dispose of all recyclables, and thus there is a problem of destroying the natural environment due to waste of resources and environmental pollution due to landfilling of wastes.

In order to solve this problem, construction wastes are sorted by type.

As a method for sorting foreign materials from construction waste, it is common for a worker to visually identify the waste in a hopper in which construction waste is stored, and separate the waste into concrete, rebar, styrofoam, wood, paper, and vinyl by hand.

However, the sorting of various types of wastes by hand is a primitive method, and the sorting process is very inconvenient and cumbersome, which requires a long time, and requires a lot of manpower, which requires expensive labor costs and quantitative processing. It is difficult and has an uneconomical disadvantage.

On the other hand, wood waste is generated in the course of road extension construction as well as the building as described above.

Conventionally, forest wastes are not systematically managed at all, and only a part of the generated wastes are being processed by the consignment processing company that has been reported.In addition, the forest wastes are stored in large quantities throughout the site for a long time, far exceeding 90 days, which is the current storage waste discharge standard. There was a problem of neglect.

As long as the wood waste is left unattended for a long time, the value of recycling due to the corrosion of the wood is not only greatly reduced, but also the collection and transportation becomes more difficult and eventually landfilling occurs. When a large amount of wood waste is buried at the construction site, As a result of the formation of spaces due to corruption, problems such as soil leakage as well as the possibility of collapse due to torrential rains occurred.In addition, even if wood wastes are stored in temporary storage, wood wastes cannot be recycled after mixing for a long time, and thus environmental pollution There was also a problem that provides a cause.

An object of the present invention is to provide a wood waste recycling apparatus and method included in construction waste that can recycle wood waste into usable recycled products (wood chips, sawdust).

Wood waste recycling apparatus included in the construction waste according to the present invention for achieving the above object, the wood waste waste first transfer means for transferring the raw material wood waste; Primary crushing means for receiving and crushing wood waste conveyed by the conveying means; A magnetic separator for sorting the metal sludge contained in the crushed wood crushed by the primary crushing means; A primary drum screen for sorting the crushed wood that has passed through the magnetic separator into sawdust and crushed wood having a particle size greater than sawdust; Second conveying means for conveying crushed wood passing through the primary drum screen; A secondary drum screen for sorting the crushed wood carried by the second conveying means into wood chips and wood chips having a particle size greater than or equal to the wood chips; A wood chip conveying means for conveying and stacking the wood chips selected by the secondary drum screen, and a third conveying means for conveying the crushed wood; Secondary crushing means for crushing crushed wood passing through the secondary drum screen to produce sawdust; And, characterized in that it comprises a sawdust transfer / loading means for transporting the sawdust crushed by the secondary crushing means to a loading place.

In addition, the wood waste recycling method included in the construction waste according to the present invention includes a raw material input step of injecting wood waste; A primary crushing step of crushing the injected raw materials; A magnetic separation step of selecting the primary crushed wood waste into crushed wood and metal sludge; A first sorting step of sorting the crushed wood, which has been called through the magnetic screening step, into sawdust and crushed wood having a grain size greater than or equal to the sawdust according to the particle size; A wood chip sorting step of sorting wood chips having passed the first sorting step into wood chips and shredded wood having a grain size greater than or equal to the wood chips according to the particle size; A second crushing step of producing sawdust by crushing the crushed wood selected in the wood chip sorting step; And, it characterized in that it comprises a transfer / loading step of transferring / loading the sawdust crushed by the secondary crushing step.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

As shown in Figure 1, the forest waste recycling apparatus included in the construction waste according to the present invention, the input of forest waste (wood waste generated from construction waste, forest waste generated from the mountain due to road construction, etc.) as raw materials The primary conveyor for crushing the wood waste conveyed by the first conveying conveyor 20, the first conveying conveyor 20 for conveying the wood waste introduced by the raw material input conveyor (10), the raw material conveying conveyor (10) The crusher 30, the magnetic separator 40 for sorting the metal sludge from the crushed wood by the primary crusher 30, and the crushed wood from which the metal sludge is removed through the magnetic separator 40 are more than sawdust and sawdust. A primary drum screen (DRUM SCREEN) (50) for sorting into crushed wood having a particle size, a second conveying conveyor (60) for conveying crushed wood from which sawdust has been removed through the primary drum screen (50), and 2 conveying conveyor Secondary drum screen 70 for separating the crushed wood transported by the (60) into wood chips and crushed wood, and the third conveying conveyor (80) for transporting the crushed wood passed through the secondary drum screen 70 and Second crusher 90 for crushing the crushed wood transported along the third transfer conveyor (80) with sawdust; Then, the sawdust crushed by the secondary crusher 90 is composed of a sawdust transfer means 100 for transferring to a loading hopper (not shown).

Input conveyor 10 for conveying wood waste, raw crushed wood, and wood chips removed crushed wood, respectively, and the first to third conveying conveyors 20, 60, 80 are motors 11, 21, respectively. The power of, 61, 81 is transmitted through the belts 12, 22, 62, 82, and the like.

The input conveyor 10 and the first conveying conveyor 20 are opened to manually sort waste synthetic resins and rocks mixed with wood waste. Here, the input conveyor 10 and the first transfer conveyor 20 can be used only one without using independently.

The primary crusher 30 is to crush wood waste conveyed through the first conveying conveyor 20, and is sealed to the outside and provided with a main body 31 and a main body 31 each having an inlet 31a and an outlet 31b. It is composed of shredding means (for example, double-blade drum) is mounted inside the) to crush the wood waste introduced into the main body 31. At this time, the wood waste is generated at the construction site or due to road construction in the forest area, the size is not uniform, the primary crusher 30 is a wood chip as the final product of the wood waste is not uniform As a pretreatment for making sawdust and sawdust, the wood waste is crushed and the sludge (metal / soil) can be easily separated from the wood waste, but the size of the crushed wood is not limited.

The magnetic separator 40 may sort metal sludge and some soil from the crushed wood that passed through the primary crusher 30, and install the sludge conveying conveyor 41 downward on the magnetic separator 40 to load the selected sludge. To be transported.

The primary drum screen 50 has a structure in which both sides (left and right sides of the drawing reference) are opened and a plurality of sorting holes 51 are provided along the circumference, and the crushed wood inserted into the inside while rotating with a motor or the like as a driving source. Allow sawdust to be discharged from. The sorting hole 51 is for sorting sawdust having small particles from the crushed wood. The diameter of the sorting hole 51 is, for example, 10 to 15 mm, preferably 12 mm, and therefore, sawdust having a diameter of 12 mm or less through the sorting hole 51. Will be discharged.

At the lower side of the primary drum screen 50, a conveying conveyor 53 for conveying sawdust passing through the sorting hole 51 is disposed.

One side of the second conveying conveyor 60 is disposed below the outlet 52 of the primary drum screen 50 and the other side thereof corresponds to the inlet of the secondary drum screen 70. The discharged crushed wood (metal sludge and sawdust removed crushed wood) is transferred to the secondary drum screen 70. The second conveying conveyor 60 is preferably disposed to be inclined upward toward the secondary drum screen 70 so that sludge adhered to the crushed wood can not be removed from the primary drum screen 50 when the crushed wood is transferred. Do.

The secondary drum screen 70 has a structure in which both sides (left and right sides of the drawing reference) are opened and a plurality of sorting holes 71 are provided along the circumference, and the second conveying conveyor 60 rotates by using a motor or the like as a driving source. Wood chips (used as partition boards, etc., 20-40 mm, preferably 30 mm particle size) are screened from the crushed wood supplied from The diameter of the sorting hole 71 is 30-50 mm, Preferably it is 40 mm. Therefore, the wood chip of 20-40 mm or less particle size is discharged | emitted through the sorting hole 71. FIG. The lower portion of the secondary drum screen 70 is provided with a wood chip transfer conveyor 73 for transferring (or loading) wood chips.

One side of the third conveying conveyor 80 is disposed below the outlet 72 of the secondary drum screen 70 and the other side corresponds to the inlet of the secondary crusher 90, and is discharged from the secondary drum screen 70. The crushed wood (wood chip removed crushed wood) is supplied to the secondary crusher 90. Like the second transfer conveyor 60, the third transfer conveyor 80 is preferably disposed inclined upward toward the secondary crusher 90 side.

Secondary crusher 90 is to produce a sawdust by crushing the crushed wood conveyed through the third conveying conveyor (80), the main body 91 is sealed to the outside and provided with an inlet (91a) and outlet (91b), respectively And shredding means (hammer type) mounted inside the main body 91 to shred the wood waste introduced into the main body 91. The secondary crusher 90 breaks the crushed wood (grain size of 40 mm or more) and produces the sawdust of 6 mm or less.

The sawdust conveying means 100 is a sealed duct 110 and the interior of the duct 110 connected to the outlet side of the secondary crusher 90 and a loading hopper (preferably a sealed container or vehicle capable of loading sawdust) It may be configured as a turbo fan 120 in communication with and to be loaded into the loading hopper through the duct 110 sawdust crushed by the secondary crusher 90 by the wind. Since the turbo fan 120 blows sawdust of 6 mm or less into the duct 110 by the blowing force, only sawdust having a particle size of 6 mm or less is loaded along the duct 110, and crushed wood having a particle size of 6 mm or more is 2 The blowing force is controlled so that it can be continuously crushed by the car crusher 90.

Hereinafter, a method for recycling timber waste included in construction waste according to the present invention will be described with reference to FIGS. 1 and 2.

(S10) Forest waste input. When wood wastes, such as wood wastes produced at the construction site and selected from aggregates and wood wastes generated during road construction in the forest, are put into the input conveyor 10, the wood wastes are placed along the input conveyor 10. It is supplied to the conveying conveyor 20.

(S20) Forest waste transfer. The wood waste that is supplied to the first conveying conveyor 20 by the feeding conveyor 10 is transferred along the first conveying conveyor 20 to the primary crusher 30 through the inlet 31a of the primary crusher 30. It is supplied in the main body 31. In addition, during the transfer in the first conveying conveyor 20, the synthetic resin and the rock is sorted by hand.

(S30) Forest waste primary crushing. The shredding means of the primary shredder 30 shreds the wood waste which is supplied into the shredder body 31 by the first conveying conveyor 20. Wood waste is introduced into the inlet (31a) is transferred to the crushing and discharge port (31b) by the crushing means. Primary shredder 30 is to shred the wood waste in order to produce wood chips from the wood waste, at this time, the wood waste that is put into the primary shredder 30 is not uniform in size, the primary shredder (30) The crushed wood shredded by is 20mm-100mm in size. The size of the crushed wood is not uniform and is produced with a small amount of sawdust (less than 6mm), a large amount of wood chips (20-40mm) and some of the crushed wood (40mm or more).

(S40) Metal sorting. The metal sludge and some soils included in the crushed wood shredded by the primary crusher 30 are sorted by the magnetic separator 40 and transported along the sludge conveying conveyor 41 (S41), and the remaining crushed wood is primary It is conveyed to the inlet of the drum screen 50.

(S50) Sawdust sorting. The crushed wood sorted by the magnetic separator 40 is put into the primary drum screen 50 and its particle size is larger than the diameter of the sorting hole 51 while being transferred from the inlet end to the outlet end of the primary drum screen 50. Small sawdust is discharged to the outside of the primary drum screen 50 through the sorting hole 51 is sorted in the crushed wood. Sawdust selected by the primary drum screen 50 is transferred to the conveying conveyor 53 of the lower side and the like (S51).

(S60) Shredding feed. The crushed wood from which sawdust is removed through the sawdust screening process is transferred to the secondary drum screen 70 by the second conveying conveyor 60.

(S70) Wood Chip Selection. The crushed wood introduced into the inlet of the secondary drum screen 70 is transferred to the outlet side by the rotation of the secondary drum screen 70, and in this process, the wood chips 20 to a diameter smaller than the diameter of the screen hole 71 are used. 40 mm particle size) is discharged to the outside of the secondary drum screen 70 so that only the crushed wood from which wood chips have been removed remain inside the secondary drum screen 70. The wood chips discharged to the outside of the secondary drum screen 70 are loaded into a separate stacking hopper or the like along the wood chip transfer conveyor 73 as a recycled product that can be recycled to a partition board without a separate process (S71).

(S80) Shredding feed. The crushed wood from which the wood chips are removed is supplied to the secondary crusher 90 by the third conveying conveyor 80.

(S90) Shredding Secondary shredding. The crushed wood conveyed by the third conveying conveyor 80 is introduced into the main body 91 through the inlet 91a of the secondary crusher 90 and freely falls into the crushing means, and the crushing means freely falls the crushed wood. Shred. The secondary crusher 90 is to crush the wood chips, which are firstly recycled wood, to produce the crushed wood as recyclable sawdust. At this time, the crushed wood introduced to the secondary crusher 90 has a size of 40 mm. As described above, crushed wood of this size is pulverized to produce sawdust having a particle size of 6 mm.

(S100) sawdust transfer / loading. While the crushed wood is crushed by the secondary crusher 90, sawdust having a particle size of 6 mm or less is blown into the duct 110 by the blowing force of the turbofan 120, and is loaded into the sawdust stacking hopper along the duct 110. Wood with a particle size of 6 mm or more is crushed to a particle size of 6 mm or less.

According to the present invention it is possible to produce wood chips and sawdust that can be recycled from non-recyclable wood waste through the above-described process, this process can be made by a series of automation to improve the recycling rate of wood waste.

As described above, according to the wood waste recycling apparatus and method included in the construction waste according to the present invention, by recycling the wood waste to recycled goods by an automated process, it is possible to reduce the environmental pollution caused by the leftover of wood waste, recycled products There is an effect that can generate economic benefits from the production of.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is a block diagram of a wood waste recycling apparatus included in construction waste according to the present invention.

Figure 2 is a process chart showing a method for recycling wood waste contained in construction waste according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: Input conveyor, 20,60,80: Transfer conveyor

30,90: Crusher, 40: Magnetic separator

50: primary drum screen, 70: secondary drum screen

100: sawdust transfer means

Claims (4)

delete A wood waste first transport means for transporting wood waste as raw material; Primary crushing means for receiving and crushing wood waste conveyed by the conveying means; A magnetic separator for sorting the metal sludge contained in the crushed wood crushed by the primary crushing means; A primary drum screen for sorting the crushed wood that has passed through the magnetic separator into sawdust and crushed wood having a particle size greater than sawdust; Second conveying means for conveying crushed wood passing through the primary drum screen; A secondary drum screen for sorting the crushed wood carried by the second conveying means into wood chips and wood chips having a particle size greater than or equal to the wood chips; Wood chip conveying means for conveying and stacking the wood chips selected by the secondary drum screen; Third conveying means for conveying the crushed wood passing through the secondary drum screen; Secondary crushing means for crushing the crushed wood conveyed by the third conveying means to produce sawdust; And, in the wood waste recycling apparatus included in the construction waste comprising a sawdust transfer / loading means for transporting the sawdust crushed by the secondary crushing means to a loading place, The loading means includes a duct for sealingly connecting the secondary crushing means and the loading hopper and a fan for conveying sawdust having a predetermined particle size or less through the duct while the crushed wood is crushed by the secondary crushing means. Wood waste recycling apparatus included in the construction waste characterized in that. delete (S10) raw material input step of inputting wood waste; (S30) primary crushing step of crushing the input raw material; (S40) a magnetic separation step of selecting the primary crushed wood waste with crushed wood and metal sludge; (S50) sawdust screening step of sorting the crushed wood passed through the magnetic screening step into sawdust and crushed wood having a particle size more than the sawdust according to the particle size; (S70) Wood chip screening step of sorting the wood chip and the wood chip and the shred wood having a particle size of the wood chip or more according to the particle size passed through the sawdust screening step; (S90) a second crushing step of producing sawdust by crushing the crushed wood selected in the wood chip selection step; And, (S100) In the wood waste recycling method included in the construction waste consisting of a transfer / loading step of transferring / loading the sawdust crushed by the second crushing step, In the loading step, wood waste recycling method included in the construction waste, characterized in that the sawdust crushed in the second crushing step is selected by gravity using a specific gravity difference and transported to the loading site.