KR100959838B1 - Sorting system and method of recycle material from construction waste - Google Patents

Abstract

PURPOSE: An apparatus and a method for sorting combustibles from construction waste are provided to reduce the amount of the construction waste which is buried in a landfill and to recycle useful resources. CONSTITUTION: An apparatus for sorting combustibles from construction waste using pressurized air and a cyclonic ascending air current comprises: a supply device(31) supplying construction waste; a slope discharge conveyor belt device(32) which is installed at an incline under a discharge end of the supply device and discharges the construction waste; and a pressurizing ventilator(33) pressurizing heterogeneous combustibles in the belt of the sloped discharge conveyor belt device by blowing air toward the construction waste dropping from the supply device.

Description

Apparatus and method for sorting combustibles from construction waste by using pressurized air and cyclone upward flow {Sorting System and Method of Recycle Material from Construction Waste}

The present invention relates to an apparatus and method for selectively separating flammables from construction wastes, and more particularly, to combustibles (wood, paper, textiles, plastics, etc.) from construction wastes generated at the site of dismantling structures such as buildings or other construction sites. The present invention relates to an apparatus and method for effectively sorting and separating vinyl, a synthetic resin material, etc.) by using pressurized air or by using pressurized air and a cyclone upflow.

At the site of demolition of structures such as buildings and bridges, construction wastes from which the structure is broken are generated. These construction wastes comprise a significant portion of steel, concrete (including aggregates), but also wood, and many other combustibles such as paper, textiles, plastics, vinyl, and synthetic resins. Soil may be included in the process of loading construction waste into trucks.

These construction wastes were transferred to specific waste landfills and landfilled. However, as the landfill capacity has recently reached its limit and it is difficult to secure additional landfill sites, there is a great need to reduce construction waste.

On the other hand, wood contained in construction waste can be used as fuel or recycled to other industrial materials, and other combustibles such as paper, textiles, plastics, vinyl, synthetic resins, etc. can also be used as fuels or recycled materials. At present, however, a significant amount of wood and other combustibles contained in construction waste are buried in landfills and disposed of, thus losing valuable resources.

The present invention was developed to improve the above situation, by separating and separating the wood or other flammables contained in the construction waste, to reduce the amount of construction waste to be embedded in the landfill and to recover the recyclable resources again For the purpose of

Furthermore, an object of the present invention is to effectively classify wood and other combustibles in combustibles sorted and separated from construction wastes and to increase their utilization.

In the present invention, in order to achieve the above object, there is provided an apparatus and method that can effectively classify combustibles using pressurized air.

In addition, the present invention provides an apparatus and method for effectively classifying combustibles by cyclone upflow using hot air pressure in addition to using pressurized air.

Specifically, in order to achieve the above object, the present invention provides a device for sorting and separating combustibles from construction wastes including combustibles, the apparatus for supplying construction wastes; An inclined discharge conveyor belt device installed obliquely under the discharge end of the supply device and moving upward to discharge construction waste falling from the supply device; A pressurized blower for blowing two kinds of combustibles into the belt of the inclined discharge conveyor belt device by blowing air to construction waste falling from the supply device; In the construction waste dropped by the inclined discharge conveyor belt device, one kind of combustibles and non-flammables drop the inclined discharge conveyor belt device along the inclined surface and press the two kinds of combustibles to the belt surface of the inclined discharge conveyor belt device by pressurized air. The apparatus for separating combustibles from construction wastes further comprises a specific gravity sorting device for sorting and separating two combustibles from construction waste by moving two belts of the inclined discharge conveyor belt device in a state of being made. Is provided.

In the apparatus of the present invention as described above, after the specific gravity screening step by the specific gravity screening device is progressed, the main body is formed with an input port through which construction waste or combustibles are input so that the wind power screening step is subsequently performed, and the lower part of the main body. Comprising a cylindrical shape to surround the and includes a cyclone forming portion is formed with a hot air supply port for supplying hot air to generate a cyclone upward flow, the hot air pressure in the circumferential tangential direction of the cyclone forming portion through the hot air supply It may further include a wind screening device to generate a cyclone upflow by blowing the one kind of flammables and non-flammables and to raise and discharge the two kinds of combustibles by the cyclone upflow.

On the other hand, in the present invention, in order to achieve the above object, as a method for separating and separating the combustibles from the construction waste containing the combustibles, by dropping the construction waste inclined conveyor belt device in a state in which the conveyor belt device is installed inclined 1 Long flammables and non-flammables drop the inclined conveyor belt device along the inclined plane and pressurize air in the direction of the conveyor belt device to press the two combustibles toward the belt surface of the conveyor belt device by the blowing pressure. There is provided a method for sorting combustibles from construction waste, comprising a specific gravity sorting step of sorting two combustibles from construction waste by collecting two combustibles by moving a belt of a conveyor belt device.

In the method of the present invention as described above, following the specific gravity screening step, the main body is formed with an injection hole into which construction waste or combustibles are input, and is formed in a tubular shape so as to surround the lower portion of the main body to generate a cyclone upward flow. Through a wind screening device including a cyclone forming unit is formed a hot air supply port for supplying hot air to the hot air, the hot wind pressure is blown through the hot wind supply port in the circumferential tangential direction of the cyclone forming unit to generate a cyclone upward flow. Injecting combustible or construction waste into the main body through the inlet, the first combustibles and non-combustibles dropped into the main body is dropped, and the two combustibles are raised by the cyclone upflow to discharge the combustible wind power sorting step. It may also include.

According to the present invention, it is possible to efficiently select and separate the wood or other combustibles contained in the construction waste, this sorting separation can be done very efficiently. By separating the wood and other combustibles from the construction waste by the present invention, it is possible to reduce the amount of construction waste to be buried in the landfill and to recover and reuse useful resources, thereby contributing to environmental protection.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention has been described with reference to the embodiments shown in the drawings, which are described as one embodiment by which the technical spirit of the present invention and its core configuration and operation are not limited.

The construction waste imported from the demolition site of the building, or other construction waste generation site includes flammables, and in the present invention, such wood or other combustibles are selectively separated from the construction waste. Such combustibles can be broadly classified into wood and other combustibles other than wood (paper, fiber, plastic, vinyl, etc.) according to the materials. Throughout the present specification including claims, wood is used for convenience. It is called "one kind of combustible material", and other combustible materials except wood are called "two kinds of combustible material", such as paper, fiber material, plastic material, vinyls, synthetic resin materials and the like.

The flammables sorting apparatus according to the present invention may be composed of only the flammables specific gravity sorting device 30, and may be configured to further include a combustible wind sorting device 40 in addition to the flammable specific gravity sorting device 30.

First, Figures 1 and 2 are respectively shown a schematic side view and a perspective view showing the configuration of the flammable specific gravity screening apparatus 30 provided in one embodiment of the flammable screening separation apparatus according to the present invention.

The combustibles contained in construction wastes have a higher proportion than non-combustibles such as aggregates and steel. In addition, the wood included in the combustibles selected and separated from the construction waste, that is, one kind of combustibles has a relatively higher specific gravity than two kinds of combustibles such as paper, textile materials, or synthetic resin materials (for example, PET containers). . The specific gravity sorting step of the flammables may be performed by the specific gravity sorting apparatus 30 shown in FIGS. 1 and 2 using the characteristics of the flammables.

Construction waste that is first introduced into the specific gravity screening device 30 according to the present invention may be a mixture of one kind of combustibles, two kinds of combustibles and non-combustibles, and the first kind of combustibles and two kinds of combustibles by removing the non-combustibles through a preliminary process. This may be mixed combustibles.

When the conveyor belt device is inclined and the construction waste drops to the inclined conveyor belt device and the air is pressurized and blown toward the conveyor belt device, two kinds of combustible materials such as light weight fiber and paper are pressurized and supplied. The pressure of the air is pressed toward the belt surface of the conveyor belt device, and the relatively heavy one combustible and non-flammable material fall down the inclined conveyor belt device along the inclined surface. If two kinds of combustibles are collected by moving the belt of the conveyor belt device while two kinds of combustibles are pressurized, two kinds of combustibles can be sorted and classified from construction waste, and further, the combustibles can be easily classified into one kind of combustibles and two kinds of combustibles. Can be sorted by classification.

 As shown in the drawings, the combustible specific gravity sorting apparatus 30 according to the present invention is a supply device 31 for supplying construction waste, and is inclined under the discharge end of the supply device 31 inclined to move upwards A pressurized blower 33 which blows air to the discharge conveyor belt device 32 and the construction waste falling from the supply device 31 so as to press two kinds of lightweight combustibles onto the belt surface of the inclined discharge conveyor belt device 32. It is configured to include). The supply device 31 may be configured as a conveyor belt device as illustrated in the drawings, but is not necessarily limited thereto.

In the combustible specific gravity sorting device 30 according to the present invention, when construction waste falls from the discharge end of the supply device 31, air is supplied from the pressurized blower 33 toward the inclined discharge conveyor belt device 32. When it is applied, two kinds of combustible materials such as a fiber material and paper having a light specific gravity are pressed onto the belt surface of the inclined discharge conveyor belt device 32 by the pressure of the air to be pressurized, and inclined in such a state as to be inclined. It is conveyed upward with the belt of the inclined discharge conveyor belt device 32 moving upward. On the other hand, one kind of combustibles or non-flammables made of wood has a high specific gravity and the inclined discharge conveyor belt device 32 is installed inclined so that despite the pressurized air from the pressurized blower 33, the inclined discharge conveyor belt due to its own weight The belt surface of the device 32 is slid to fall in the downward direction of the inclined discharge conveyor belt device 32. Through this process, two kinds of combustibles can be separated and separated from construction wastes.In particular, when the input of construction wastes is a mixture of one combustibles and two combustibles from which non-combustibles have been removed through a preliminary process, this is combustibles. And two kinds of combustibles can be easily classified and classified. In the specific gravity sorting separator 30 according to the present invention as described above, the inclined discharge conveyor belt device 32 is preferably inclined at an angle of about 20 to 55 degrees with respect to the horizontal plane. If it is inclined to less than 20 degrees, one kind of combustibles are also pressed into the pressurized air and transferred to the upper side together with the belt of the inclined discharge conveyor belt device 32, so that it is difficult to separate one kind of combustibles and two kinds of combustibles. When inclined at an excessive angle, even if pressurized air of strong pressure is applied, the two kinds of combustibles also fall down the discharge conveyor belt device 32 due to its own weight so as not to be separated. Therefore, the inclination angle with respect to the horizontal plane of the inclined discharge conveyor belt device 32 is preferably in the range of about 20 to 55 degrees.

The inclined discharge conveyor belt device 32 may be configured such that the inclination can be adjusted, as shown in the figure to form a long hole on the side of the inclined discharge conveyor belt device 32, the support arm to move along the long hole It can be configured to make tilt adjustment possible. However, the present invention is not limited thereto. In addition, the pressurized blower 33 may also be configured to allow the blower nozzle to be rotated on the mounting arm as illustrated in the drawing so that the blowing angle of the pressurized blower 33 can be adjusted. However, this is also illustrative and the configuration for changing the angle of the pressurized blower 33 is not limited thereto. In the drawings, reference numeral 34 denotes a flammable fly prevention net 34 installed as necessary to prevent two kinds of flammables from flying out.

As described above, a considerable amount of combustibles are selectively separated from the construction waste through construction combustible gravity sorting step using the combustible specific gravity sorting device 30 according to the present invention. The remaining construction waste, which is separated by combustible matter is separated, may be transferred to a landfill and landfilled, and thus, the process according to the present invention is carried out. Therefore, the amount of construction waste landfilled in the landfill site is higher than the state in which the combustible material was not initially separated and separated. It is in a significantly reduced state. Therefore, it is possible to reduce construction waste dumped at the landfill, and to effectively cope with the current situation in which the landfill is short. In addition, it is possible to separate the combustibles contained in the construction waste and to extract useful recycling resources, thereby saving resources.

Particularly, if the specific gravity sorting step by the specific gravity sorting device 30 of the present invention is performed on the combustible mixed with one kind of flammable and two kinds of combustibles separated and separated from the non-flammable through a preliminary process, the flammables are additionally used. It can be further divided into 1 type combustible (wood) and 2 combustible materials (species, fiber or synthetic resin material) having different values and values, thereby increasing the recycling of resources.

On the other hand, after performing the specific gravity screening step of separating and separating the combustibles from the construction waste through such a combustible specific gravity screening device 30 may further perform a wind screening step using the combustible wind power screening device (40). Two kinds of combustibles selected through the specific gravity sorting device 30 may include one kind of combustibles inadvertently. In addition, two kinds of combustibles which are not separated even by falling down from the inclined discharge conveyor belt device 32 in the specific gravity sorting device 30 may be included. Therefore, after performing the specific gravity screening step, by additionally performing the wind screening step using the wind screening device 40, it is possible to further separate two kinds of combustibles.

Hereinafter, a wind screening step that can be performed after the specific gravity screening step and a wind screening device 40 therefor will be described.

In the wind sorting step according to the present invention by applying a hot wind pressure to the combustibles to generate a cyclone upflow, two kinds of combustibles such as paper having a relatively high specific gravity or non-combustibles falling and light weight specific gravity By raising and capturing by the cyclone upward flow, it is possible to easily separate and separate two kinds of light combustibles from the construction waste, and to further sort and classify one combustible and two kinds of combustibles even after the specific gravity sorting step. .

3 is a schematic side cross-sectional view showing the configuration of the wind power sorting device 40 according to the present invention. 4 shows a schematic plan view from above of the main body 41 of the wind turbine sorting apparatus 40 according to the invention shown in FIG. 3.

Specifically, the wind power sorting device 40 is composed of a composite cyclone device, the construction waste or combustible inlet 45 is injected into which the combustibles are formed, and two kinds of combustibles from the construction waste or combustibles injected into the cyclone upflow And a hot air supply port 42 formed of a tubular shape so as to surround the lower portion of the main body 41 and having hot air supplied to generate a cyclone upward flow. It is comprised including the clone formation part 43. The cyclone forming unit 43 may be provided with a drop collection box 48 for collecting one kind of combustibles and non-combustibles falling by their own weight from the construction wastes or combustibles that are introduced into the main body 41. At the top of the fan device 44 to form a wind in the transverse direction to adjust the rising speed of the rising two kinds of combustibles may be provided.

As illustrated in the drawings, the wind power sorting device 40 according to the present invention includes a cylindrical main body 41, and a flammable inlet 45 is formed on the side wall of the main body 41. As shown in the drawing, the main body 41 preferably has a central cross section larger than the upper and lower cross sections so that the center is convex. The lower portion of the main body 41 is provided with a cylindrical cyclone forming portion 43 for enclosing the main body 41, the cyclone forming portion 43 is a hot air supply for forming a cyclone 42 ) Is formed. The hot air supply port 42 supplies hot air in the circumferential tangential direction of the cyclone forming unit 43 from the sidewall of the cyclone forming unit 43 to form a rotating cyclone upward flow.

Construction waste or combustibles are introduced into the main body 41 through the inlet 45, and a cyclone upward flow is formed in the cyclone forming part 43 when hot wind pressure is applied from the hot air supply port 42. . That is, the air flow to form a whirlwind rising upward is formed, this rising air flow is introduced into the main body 41 from the cyclone forming portion 43 to rise upward. When the construction wastes or combustibles introduced into the main body 41 fall, two kinds of combustibles such as paper having a small specific gravity are in the main body 41 by a cyclone upward flow, which is a kind of strong pressure wind flowing into the main body 41. Although it rises by blow, the one kind of combustibles and non-combustibles made of wood having a relatively heavy specific gravity fall down the main body 41 in spite of the cyclone upward flow, and the one kind of combustibles that fall so fall is formed into a cyclone. Pass 43 and collect in the drop collection box 48.

Two kinds of combustibles are blown out by the cyclone upward flow, and are raised to the upper portion of the main body 41 and discharged to the outside through the discharge pipe 47. At this time, the fan device 44 may be installed in the upper portion of the main body 41, the fan device 44 may be installed in front of the inlet of the discharge pipe (47). The fan device 44 generates wind in the transverse direction by the rotation. When the rising speed of the two kinds of combustibles rising to the upper portion of the main body 41 by the cyclone upward flow is too large, the two kinds of combustibles do not easily escape to the discharge pipe 47. When the lateral wind is generated by the fan device 44 as described above, the lateral force acts on the two kinds of combustibles, and the two kinds of combustibles are formed by the force of the vertical force acting perpendicularly to the two kinds of combustibles. As it diffuses from the upper portion of the main body 41, the rising speed is reduced to an appropriate level, and easily exits to the discharge pipe 47. When the fan device 44 is installed as described above and the rotation speed of the fan device 44 is adjusted, the rising speed of the two combustibles can be adjusted to be easily discharged to the discharge pipe 47. As illustrated in the figure, the lower portion of the fan device 44, that is, the downward surface, is preferably formed in a conical shape, because the rising cyclone upward flow can be dispersed using a conical shape.

On the other hand, the two kinds of combustibles discharged to the outside through the discharge pipe 47 is collected in the collector 49 as the flow of air that has been weakened. In order to weaken the flow of air, the discharge pipe 47 is connected to the expansion pipe 45 whose diameter gradually increases as shown in FIG. Since the two kinds of combustibles discharged from the main body 41 to the outside have energy by hot air, by connecting the discharge pipe 47 with the expansion pipe 45 as described above, the energy is lost while passing through the expansion pipe 45 and the two kinds of combustibles Make it fall easily.

On the other hand, in the present invention, the expansion pipe 45 may be connected to the cylindrical secondary cyclone forming portion 46. In connecting the expansion pipe 45 to the secondary cyclone forming portion 46, the expansion pipe as shown in FIG. 8, similarly to the hot air supply port 42 is connected to the cyclone forming portion 43. The direction of the flow out of 45 becomes the circumferential tangential direction of the secondary cyclone forming portion 46. Therefore, the cyclone flow is also generated in the secondary cyclone forming portion 46. Since the cyclone flow has a weak lifting force, the two kinds of combustibles fall down and gather together in the collection, while the two kinds of combustibles are introduced with the combustibles. Dust, etc., is raised upward by the cyclone flow unlike the two combustibles. A dust collector 48 may be installed at an outlet formed at an upper portion of the secondary cyclone forming unit 46 to filter the rising dust and the like. A collection box 49 containing two kinds of combustibles falling may be installed below the secondary cyclone forming unit 46.

As described above, if the wind sorting step using the wind sorting device 40 according to the present invention is carried out, two kinds of combustibles can be easily classified from construction wastes, and one kind of combustibles and two kinds of combustibles already separated from the construction wastes can be classified. Flammables are further classified. In particular, through this wind sorting step, it is possible to separate, for example, two combustibles of about 10 mm or less.

1 and 2 is a schematic side view and a perspective view showing the configuration of the flammable specific gravity screening apparatus provided in the flammable screening separation apparatus according to the present invention, respectively.

3 and 4 are respectively a schematic side view and a perspective view showing the configuration of the combustible wind power sorting device provided in the combustible sorting device according to the present invention.

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

20 Flammable Wet Separator

21 fish tank

22 Conveyor Conveyor Unit

23 Floating Flammable Collector

Claims (4)

An apparatus for sorting and separating combustibles from construction waste including combustibles, A supply device 31 for supplying construction waste; It is installed inclined under the discharge end of the supply device 31, the upper surface of the belt is moved upwards, the lower surface is moved downwards, so that construction waste falling from the supply device 31 to the upper surface of the belt An inclined discharge conveyor belt device 32 for discharging; A pressurized blower 33 which blows air to construction waste falling from the supply device 31 and presses the two kinds of combustibles by the belt of the inclined discharge conveyor belt device 32 so as to be in close contact; In the construction waste dropped to the inclined discharge conveyor belt device 32, one kind of combustibles and non-combustibles are inclined discharged by pressurized air from the pressurized blower 33 while simultaneously dropping the inclined discharge conveyor belt device 32 along the inclined surface. By moving the belt of the inclined discharge conveyor belt device 32 in a state in which the two kinds of combustibles are pressed against the belt surface of the conveyor belt device 32 so as to move the two combustibles upward with the upper surface of the conveyor belt device 2. A specific gravity sorting device 30 for selectively separating two kinds of combustibles from construction waste by collecting two kinds of combustibles; After the specific gravity screening step is performed by the specific gravity screening device 30, the wind power screening step is subsequently performed. A main body 41 having an injection hole 45 through which construction waste or combustibles are input; And A cyclone forming portion 43 formed in a tubular shape so as to surround the lower part of the main body 41 and having a hot air supply port 42 through which hot air is supplied to generate a cyclone upward flow; Hot air pressure is blown through the hot air supply port 42 in the circumferential tangential direction of the cyclone forming portion 43 to generate a cyclone upflow, so that one kind of flammables and non-flammables fall and two kinds of combustibles are cyclone upflows. A windscreen sorting device 40 that is raised and discharged by; The main body 41 is connected to the discharge pipe 47 for discharging the two kinds of combustibles raised; At the inlet of the discharge pipe 47, the two kinds of combustibles are formed by the vertical force which raises the two kinds of combustibles by causing the lateral force to act on the two kinds of combustibles which rise by generating wind in the horizontal direction by the rotation, and the lateral forces. The wind sorting device 40 is provided with a fan device 44 which allows the two kinds of combustibles to be easily discharged to the discharge pipe 47 by controlling the rising speed of the two types of combustibles by diffusing the upper portion of the main body 41. Apparatus for sorting and separating combustibles from construction waste, comprising. delete As a method for sorting and separating flammables from construction waste containing flammables, It is inclined under the discharge end of the supply device 31 for supplying construction waste, and the upper surface of the belt is moved upward, the lower surface is moved downward, so that the upper surface of the belt from the supply device 31 1 type combustibles and non-flammables are inclined discharge conveyor belt apparatus 32 by dropping construction waste to the inclined discharge conveyor belt apparatus 32 in the state which installed the inclined discharge conveyor belt apparatus 32 which inclines the discharge of the construction waste falling. While dropping along the inclined plane and pressurized air in the direction of the inclined discharge conveyor belt device 32, pressurized two kinds of combustibles toward the belt surface of the inclined discharge conveyor belt device 32 by the blowing pressure and in close contact with each other. Even if two kinds of combustibles move upward with the upper surface of the conveyor belt device 2 by moving the belt of the inclined discharge conveyor belt device 32. A gravity screening step of classifying the two combustibles from the construction waste by collecting the two combustibles; Following the specific gravity screening step, A main body 41 having an inlet 45 through which construction waste or combustibles are input is formed, and a hot air supply port configured to surround a lower portion of the main body 41 and supplied with hot air to generate a cyclone upflow. And a cyclone forming portion 43 having a 42 formed therein, and the main body 41 is connected with a discharge pipe 47 for discharging the two kinds of combustibles which are raised, and an inlet of the discharge pipe 47, The two kinds of combustibles are formed at the top of the main body 41 by the vertical force which raises the two kinds of combustibles by causing the lateral force to act on the two kinds of combustibles rising by generating wind in rotation, and the lateral force. In the wind sorting device 40, which is equipped with a fan device 44 which allows the two kinds of combustibles to be easily discharged to the discharge pipe 47 by controlling the rising speed of the two types of combustibles, the hot air supply port 42 is Cyclone Forming Part (43) Blowing hot air pressure in the circumferential tangential direction of to generate a cyclone upflow; Injecting combustible or construction waste into the body 41 through the inlet 45; Construction wastes characterized in that it comprises a combustible wind sorting step of dropping one kind of combustibles and non-combustibles injected into the main body 41, and two kinds of combustibles are lifted by a cyclone upflow and discharged through the discharge pipe 47. Flammable sorting separation method from. delete

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