KR101533288B1 - Method for separating landfilled waste or domestic waste for manufacturing Solid Refuse Fuel - Google Patents

Abstract

The present invention relates to a method of selecting landfilled waste and domestic waste for manufacturing a solid fuel product. The objective of the present invention is to provide a method of decreasing the number of crushing processes to reduce total energy consumption for the selection, and simultaneously, decreasing the content of incombustibles while increasing heat values of combustibles to select a raw material for a high quality solid fuel product. The method comprises: a coarse combustible selection step for crushing a plastic bag containing landfilled waste or domestic waste with an excavator in a non-crushing manner, and selecting coarse combustibles; a particle size selection step for selecting waste based on the sizes thereof by using a trommel screen; a precision particle size selection step for sucking and selecting fine combustibles by using a fine combustible separation cyclone while precisely selecting soil and sand which are dropped to a lower part of the trommel screen with a dual disk screen; a three-member separation step for separating the waste into incombustibles, heavy combustibles, and light combustibles while reducing generation of road dusts and bad smell through a specific gravity-based three-member blow-separator; a hot air drying step for removing soil and sand while passing the heavy combustibles through a drying trommel screen to feed hot air from a hot-air blower into the heavy combustibles in an air circulation manner, and to dry the same; and a crushing step for crushing light combustibles and coarse heavy combustibles which have passed the hot air drying step into a desired SRF size by using a crusher provided through a transfer conveyor.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of separating landfilled landfilled wastes,

The present invention relates to a method for selecting landfill or municipal waste for the production of solid fuel products, and more particularly, to a method for selecting landfill or municipal waste for the production of solid fuel products, The present invention relates to a sorting method for producing solid fuel products of high quality by containing less incombustibles such as steel products.

In general, waste disposal uses landfill or incineration methods. In the landfill method, it is difficult to acquire additional landfill sites and environmental problems, and the existing landfill has reached the end of its life. Also, Since additional construction is not easy, waste disposal is becoming a big social problem.

Recently, a variety of solid fuel products (SRFs) (hereinafter referred to as " SRFs ") capable of selectively burning combustible materials including tires, vinyls and plastics contained in wastes to be landfilled or incinerated, Manufacturing technology is emerging. This SRF manufacturing technology is a very desirable phenomenon in terms of resource recycling, with the advantage of reducing the amount of waste to be landfilled or incinerated.

Solid fuel products have been made by recycling waste synthetic resins, waste rubber, and waste wood, which were previously incinerated or buried, to a level similar to that of coal (4,000 ~ 5,000㎉ / kg) by improving transportability, storage stability and combustion stability. It is made of cork or pellet and is a renewable energy used as an auxiliary fuel for thermal power plants. The SRF is made up of high-calorific waste and generates a uniform thermal power when incinerated. Therefore, it is widely used in private power plants and industrial boilers.

Korean Patent No. 10-0998800 (a method for producing mixed solid fuel of municipal solid waste and landfill waste through calorimetry), Korean Patent No. 10-1021754 (mixed solid fuel of municipal solid waste and landfill waste using a dryer) And Korean Patent No. 10-1270936 (a method for producing solid fuel of municipal solid waste and landfill waste using a dual drying system and a dual exhaust gas treatment system).

Korean Patent No. 10-0998800 discloses a method of solving the problem of the removal of the soil and the odor of resources such as high quality waste synthetic resins that can be recovered from the landfill waste and by simply burning the resources of the landfill waste, In presenting the means of aggressive recycling of the problem of passive energy recycling to be recovered, the characteristics of the process that can be linked to the conventional MBT process are provided, and the recycling resources of the landfill waste and municipal waste are integrated, The main purpose of the present invention is to provide a method for producing a solid fuel of high quality by mixing a recycled wastewater with a recycled wastewater, S-A1) PLC (Programmable Logic Controller) processing system that controls and monitors each process as a whole A first sorting step of separating the municipal waste brought in by the crushing and crushing of the municipal waste into a first crushing crusher, passing the crushed material through the first sorting device, and then separating the municipal waste combustible material; S-B1) a second sorting step of separating buried waste taken separately from the municipal wastes by a second crushing crusher, crushing the crushed waste, passing the crushed material through a second sorting device, and then separating the burnt waste combustible material.

Korean Patent No. 10-1021754 discloses a method for solving the problem of soil removal and odor problems of resources such as high quality waste synthetic resins that can be recovered from landfilled wastes, In presenting the means of aggressive recycling of the problem of passive energy recycling to be recovered, the characteristics of the process that can be linked to the conventional municipal waste MT process are prepared and the recycled resources of the landfill waste and municipal waste are integrated, The main purpose of the process is to integrate the recycling process of recycled waste in the MT process. The overall process of S-A1 is to control and monitor each process. The municipal waste is broken and crushed by the first crushing crusher by the process control of the PLC, A first sorting step of separating the municipal waste combustible material after passing through the separate device; S-B1) a second sorting step of separating buried waste taken separately from the municipal waste by crushing and crushing the buried waste with a second crushing crusher, passing the crushed material through a second sorting device, and then separating the burnt waste combustible material; S-C1) The water content measuring device of the screening mixture storage tank for temporarily storing the municipal waste combustible material and the landfill waste combustible material separated through the first sorting process and the second sorting process is controlled by the PLC, And when the water content of the mixed material is not more than 10%, it is supplied to the step S-C3), and when the water content is more than 10%, it is supplied to the third sorting device of the following step S-C2) And a control step.

Korean Patent No. 10-1270936 does not require a large-scale facility investment cost in producing solid fuel by using municipal waste combustible material, and it is energy-saving by effectively utilizing hot wind in a wind power sorter and securing equal quality of waste And a method for manufacturing a solid fuel of municipal solid waste and landfill waste by using a dual drying system and a double exhaust gas treatment system, which are improved in efficiency and economy in terms of energy consumption, ) The first sorting process is to carry out the municipal waste, break it with crusher, sort the crushing by the trommel screen, separate the incombustible metal by the magnetic separator, and selectively sort combustible waste by water line. ST-D1) The municipal waste and the landfill waste combustible material separated through the first sorting process (ST-C1) are separated by a wind-powered separator connected to a drying hot air fan and stored in a box. Or a flammable material having a water content of 25% or less; ST-C2) In order to produce an unformed RDF having a water content of 25% or less or a molded RDF having a water content of 10% or less by crushing a combustible material flowing through the first drying step (ST-D1) And a pulverizing step of pulverizing the mixture.

However, most of the SRF manufacturing technologies including the above-mentioned SRF manufacturing techniques are produced by crushing flammable materials with a primary crusher and then sorting the specific gravity of the wind or crushing the combustible materials with a secondary crusher to produce SRF of a size (50 mm or less) During the primary crushing process, productivity is lowered due to excessive consumption of the primary crusher due to incombustibles such as steel products and occurrence of breakdown. In the case of separating iron products using a magnet installed after the primary crusher, crushed steel products are mixed with combustible materials It is difficult to sort by being supplied, and the productivity is deteriorated due to the problem of re-classifying the flammable material again, and the incombustibles and combustibles are mixed to the final stage in many cases, thereby deteriorating the quality of SRF.

Also, there is a disadvantage that the recoverability of resources that can be recycled is low due to the low separation and sorting ability of combustibles contained in soil with high water content.

In addition, there is a disadvantage in terms of environmental pollution that countermeasures against fugitive dust and odor generated when flammable materials are sorted are small.

Korean Registered Patent Publication No. 10-0998800 (Nov. 30, 2010) Korean Registered Patent Publication No. 10-1021754 (Mar. 4, 2011) Patent Registration No. 10-1270936 (2013.05.29)

It is an object of the present invention to solve the above problems and provide a method of selecting high-quality raw materials for solid fuel products by reducing the number of crushing steps and reducing the total energy consumption according to sorting while lowering the incombustible content and increasing the calorific value of combustible materials I have to.

Another object of the present invention is to provide a method for selecting a combustible material from imported wastes in a state where an initial combustible material and an incombustible material are mixed, So that a high-quality SRF can be produced.

Another object of the present invention is to provide a wind turbine that includes a step of selecting the air circulation wind force specific gravity using an air conveyor and a cyclone capable of multi-stage sorting, wherein a catching film is provided on the air conveyor passage to remove light scattered heavy- So that it is possible to sort out the specific gravity of the wind force, thereby reducing fugitive dust and odors generated when sorting combustibles from the waste.

In order to accomplish the above objects and to solve the conventional drawbacks of the present invention, a method for disposing a plastic bag wrapped with an excavator equipped with a toothed tooth or wrapping municipal waste in a non-crushing manner, Selecting flammable materials;

A particle size selection step of selecting wastes from which coarse combustibles have been removed by size using a Trommel screen;

A precise particle size selection step of precisely screening the high moisture contents falling down to the bottom of the Trommelscreen at the stage of particle size selection using a double disk screen and sucking and sorting the fine combustibles among waste discharged from the lower part using a cyclone for separating micro flammables;

In order to select the wastes discharged from the particle size selection stage and the fine particle size selection stage, each of the three wind selection devices composed of a multi-stage air conveyor and a three-way selection cyclone separator is used to reduce scattered dust and odor, And selecting the three types of wind power specific gravity selected from lightweight combustibles;

 A hot air drying step of removing gravel while blowing hot air of the hot air through the air circulation system in the process of passing the heavy combustibles selected and discharged in the step of selecting the three wind power specific gravity through the drying trommel screen;

And a crushing step of producing a lightweight combustible material selected and discharged in the three wind selection stages and a heavy combustible material subjected to the hot air drying step to a required SRF size using a crusher supplied through a single conveying conveyor And a method for selecting landfill or municipal waste for the production of a solid fuel product.

In a preferred embodiment, the drum for driving the conveying conveyor supplied to the conveying conveyor or the wind-specific gravity selecting step in the granularity selecting step is a permanent magnet driving drum, And the conveying conveyor supplied to the step of selecting three wind power specific gravity can be configured to reduce the phenomenon of overlapping of incombustibles and combustible materials by controlling the speed of the conveyor by the inverter motor.

In a preferred embodiment, the micro flammable separating cyclone in the step of sorting fine granules is selectively discharged to the lower portion of the double disk screen, and the micro combustible contained in the waste being conveyed to the conveying conveyor is introduced into the cyclone as the suction wind power of the suction wind power tube, And the air is blown through the cyclone upper passage through the dual disc screen and blown to the point where the waste being conveyed by the conveying conveyor falls down to use wind power to screen the combustibles contained in the dual screen passage waste .

In a preferred embodiment, the precise particle size selection step may include separating the waste mixed with the micro-combustible material by the wind-induced discharge force by a micro-combustible wind power discharge pipe installed at the end of the conveyance conveyor, Install a valve to regulate the air flow while conveying the incombustibles in the lower part of the dropping point of the soil conveyor to the side of the conveyor. And separating and re-sorting the micro flammables that have not been sorted yet.

In a preferred embodiment of the present invention, when the amount of the soil passing through the disk screen increases due to the aggregation of the gravel and the like, the wind power change valve opens the wind power change valve to the maximum extent to supply the small wind power wind- The wind power supplied to the lateral wind power discharge pipe is increased to separate and reselect the earth and combustible materials which are difficult to be sorted by the wind power discharged from the micro combustor wind power discharge pipe,

When the amount of the soil passing through the disk screen is small, it is possible to reduce the opening of the wind power change valve and reduce the wind power supplied to the lateral wind power discharge pipe so as to separate only the combustible that has not been sorted.

In a preferred embodiment of the present invention, the step of selecting three wind power specific gravity is a step of selecting the wind power specific gravity from among the wind power discharged through the wind power discharge pipe of the cyclone selecting cyclone installed at the lower end of the conveying conveyor for conveying the waste, A primary sorting step of discharging the incombustible matter into the incombustible conveying conveyor and scattering the combustibles contained in the waste into the first air conveyor of the multi-stage air conveyor constituting each of the three-element selection devices of wind specific gravity;

A secondary sorting step of dropping the heavy combustibles among the selected combustible materials in the primary sorting step by using a catching membrane provided at an end of the first air conveyor to drop the heavy combustible material into a heavy combustible conveying conveyor;

And a tertiary sorting step of letting the lightweight combustibles having passed through the secondary sorting flow in the lateral direction of the cyclone selecting cyclone connected to the end of the second air conveyor and then downwardly rotating so as to drop and discharge the lightweight combustibles to the conveying conveyor Wherein the method comprises the steps of:

In a preferred embodiment, the heavy combustible conveying conveyor for discharging the heavy combustible material is constituted by a permanent magnet drum as a driving drum, and the iron materials mixed and discharged as a combustible material by wind power can be configured to be sorted.

In a preferred embodiment, the multi-stage air conveyor is constituted by an inclined structure in which a first air conveyor and a second air conveyor are closed, the top, left and right sides of which are clogged so as to move air and combustible material scattered by wind force, The first lower conveying conveyor and the second lower conveying conveyor are spaced apart from each other by a predetermined distance at an inclined angle to raise the lower conveying conveyor and the first lower conveying conveyor is arranged to convey the heavy combustible material falling down to the heavy combustible conveying conveyor And the second conveying conveyor is rotatably driven so as to be reversely driven to discharge the flammable material dropping into the second conveyor relatively heavy among the combustible materials blown by the second lower conveying conveyor to the heavy flammable conveying conveyor, The membrane is installed, and the flammable material is blown by the secondary air conveyor. It can be configured to prevent the ever greater light emission of flammable material.

In a preferred embodiment, the catching membrane may be configured as a separable mounting type so that a plurality of the catching films are arranged in the width direction of the first air conveyor, and the position of the catching film is adjusted in the longitudinal direction of the first air conveyor.

In a preferred embodiment, the cyclone selecting cyclone is constituted by a wind power discharge pipe provided at the lower end of the conveying conveyor for conveying the waste that has passed through the particle size sorting step and the precise particle size sorting step to provide wind power, The cyclone for circulation can be constituted by installing a lateral wind power discharge pipe branched from one end of the wind power discharge pipe and laterally installed at the end of the incombustible conveying conveyor to provide wind power to the falling incombustible material to re-sort the combustible material.

In the present invention, when the combustible material is selected from the landfill or municipal wastes, the initial combustible material and the nonflammable material are mixed, the nonfracturing type is selected, and the crushing is performed only for the combustible material subjected to the air circulation wind force specific gravity selection step The SRF can be produced by raising the content of the combustible material and reducing the content of the incombustible material,

In addition, by simplifying the sorting process and equipment, it is possible to produce high quality solid fuel products while reducing energy consumption,

In addition, by including a step of sorting air circulating wind force using air conveyor and cyclone capable of multi-stage classification, it is advantageous to solve the environmental pollution problem by removing fugitive dust and odor generated from combustibles from waste by circulating air It is a highly anticipated invention in the industry.

FIG. 1 is a configuration diagram showing an entire sorting process according to an embodiment of the present invention,
2 is a perspective view showing a sorting apparatus according to an embodiment of the present invention,
3 is a front view showing a sorting apparatus according to an embodiment of the present invention,
4 is a side view showing a sorting apparatus according to an embodiment of the present invention,
FIG. 5 is a plan view illustrating a retaining film according to an embodiment of the present invention,
FIG. 6 is a front view illustrating a retaining film according to an embodiment of the present invention. Referring to FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 2 is a perspective view showing a sorting apparatus according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a sorting apparatus according to an embodiment of the present invention. FIG. 4 is a side view showing a sorting apparatus according to an embodiment of the present invention, FIG. 5 is a plan view illustrating a holding membrane according to an embodiment of the present invention, FIG. 6 is a cross- FIG. 2 is a front view of an embodiment in which a latching membrane according to an embodiment is installed.

As shown in the drawing, the present invention has a step S100 of separating buried vinyl bags or the like, which surrounds municipal waste or municipal waste, with an excavator 1 equipped with a tooth 101 to sort out coarse combustibles.

When this breaking step is carried out, coarse combustibles can be easily sorted and input into the SRF manufacturing process without any unnecessary sorting process, thereby being able to be recycled. Therefore, the main selection process of the present invention is sufficient to select only the remaining wastes excluding the crude combustible material. The break-to-throw is a device that is attached to a bucket installed at the end of the arm of an excavator, or removes buckets and crushes waste with an installed device. It has no crushing ability, It is a device that can break only.

As for the shape of the barbed tooth, it is sufficient that the vinyl can be punched like a drill, and various tooth shapes, a coupling structure with a bucket or a coupling structure mounted with a bucket can be used as needed.

One type of wave envelope can be composed of a combination of overlaying three pitchers in the existing bucket and covering them with a pitcher of 500mm or longer in length. In this type of coupling, the bucket is not removed but the existing bucket is filled with water. In this way, the coupling can be made by using a pin or the like between the existing pitcher and the number of envelopes, It is possible.

Of course, it is sufficient that the method of attaching the wave envelope is such that it is possible to dispose the wave envelope with various methods in one example.

As described above, the first step of the present invention is constituted by a breaking step instead of the crushing step, in order to prevent the breakage of the incombustibles contained in the waste, thereby preventing the deterioration of the sorting power generated when the combustibles and incombustibles are finely crushed.

If the incombustibles and combustibles are crushed in the mixed state, the primary crusher may be excessively consumed or broken due to incombustibles such as steel products. In addition, when the crusher is operated in a state where soil, Energy is consumed and inefficient.

The plastic bag is removed through the breaking step and the buried or municipal waste from which the coarse combustibles have been removed is uniformly and uniformly spread through the vibration hopper 2 and then introduced into the Trommelscreen 3 The wastes are dropped to the bottom of the Trommelscreen and then discharged through the conveying conveyor 301 to be supplied to the precise size sorting step. The wastes having a predetermined size or larger are passed through the Trommelscreen to the end, (S200), which is supplied to the three-step selection step of wind power specific gravity.

In the present invention, it is preferable to set the size to be discharged to the lower portion to be 35 mm or less, and the size to be discharged to the lower end of the trommol screen is set to 35 mm or less, Was set to be larger than the size of 35 mm. However, such a numerical value does not limit the present invention.

Also, it is preferable that the conveying conveyor 301 supplied to the precise particle size selecting step or the driving drum 303 of the conveying conveyor 302 supplied to the step of selecting the three-dimensional wind specific gravity is constituted by a permanent magnet type driving drum. This is because iron species among the incombustible materials that are mixed and discharged together with combustible materials by wind power can be selectively discharged. The installation position of the permanent magnet type driving drum is desirably provided at the waste discharge end side which is the end of the conveyor, in order to separate the steel water product when falling.

In addition, the conveying conveyor 302, which is fed through the Trommelscreen 3 to the step of selecting the three-point wind force specific gravity, adjusts the speed of the conveying conveyor by the inverter motor so that the waste moves quickly, . Adjusting the feed conveyor speed improves the efficiency of sorting combustible materials.

Curtain phenomenon refers to a phenomenon in which combustible materials and incombustibles overlap and can not be sorted. When light incombustibles overlap, incombustibles are discharged to the combustible conveyor. When they are overlapped with heavy incombustibles, combustible materials are not sorted and discharged into incombustible conveyors.

The wastes falling down to the bottom of the Trommelscreen 3 at the stage of selecting the size of the wastes are wastes such as soil having a high water content and the wastes which are difficult to sort out combustibles and incombustibles contained therein due to moisture content, The present invention has a precise particle size selection step (S300).

The precise particle size selection step includes a screening step using a double disk screen (4) composed of a metal such as stainless steel, which is resistant to corrosion, and a step of finely dividing the wastes discharged to a certain size or more (5) means for separating the flammable or combustible materials selected by the blowing or sucking of the flammable matter into cyclone (5).

The waste discharged downward in the screening step using the double disc screen is configured such that waste of 10 mm or less is discharged in an embodiment of the present invention, and waste passing through the double disc screen is 10 to 35 mm in size. However, such a numerical value does not limit the present invention.

The dual disk screen 4 is provided with a plurality of axes arranged at regular intervals on the moving direction side, and a plurality of double screens having a predetermined interval on the individual axes are arranged in the axial direction so as to rotate in conjunction with rotation of the axes. Further, the adjacent axial disks are configured to be staggered from each other.

In addition, the selection size of the soil can be controlled by controlling the distance between the disk and the disk and the distance between the disks, and the size of the soil discharged through the double disk screen. Such a disc-shaped disc screen is slit downward during the rotation of the disc, even if the water content is high, and is then discharged downward or forward. The detailed configuration is omitted because many configurations are disclosed including the pre-registration of the present applicant.

The cyclone 5 for separating the micro flammables is discharged to the lower part of the double disc screen by means of selecting combustible and incombustibles in the soil selected by size. The micro flammable material contained in the waste being conveyed to the conveying conveyor 501, And then discharged through the double disk screen and discharged to the waste being conveyed by the conveying conveyor 504 after being discharged by the discharge conveyor 504 . Wind force and suction force generated in the cyclone for micro flammable material separation are provided through the one side of the blowing motor 505 and the suction force is provided through the opposite side.

The wastes combined with the micro flammable material are separated by an exhaust wind force by a micro flammable wind power discharge pipe 506 installed at the end of the conveying conveyor 302.

Further, a wind power change valve 507 is provided at a branch point of a part of the passage of the micro flammable wind power discharge pipe 506 through which the discharge air of the cyclone is transferred, A lateral wind direction discharge pipe 509 is used at the end of the incombustible discharge conveyor 508 installed in the lateral direction to wind the wind in the lateral direction to separate and re-select the unburned micro combustible materials generated by the accumulation of gravel- Lt; / RTI >

That is, when the amount of the soil passing through the disk screen increases due to the aggregation of the gravel-like material, the wind power change valve 507 is opened to the maximum, the small flammable wind power discharge pipe 506 is supplied with a small discharge wind force to separate the combustible material, The wind power supplied to the wind power discharge pipe 509 is increased to separate and reselect the earth and combustible materials which are difficult to be sorted by the wind power discharged from the micro combustible wind power discharge pipe,

If the amount of the soil passed through the disk screen is small, the opening of the wind power change valve 507 is reduced so as to reduce the wind power supplied to the lateral wind power discharge pipe, thereby separating only the unburnt combustible material. .

The wastes having passed through the particle size selection step and the fine particle size selection step have a step of selecting a three-stage wind specific gravity selection step (S400) through a wind power specific three-point selection device (6).

The apparatus for selecting three wind power specific gravity comprises a multi-stage air conveyor (61) and a three-way selection cyclone (62) for supplying a wind power and a suction force to the multistage air conveyor.

The multi-stage air conveyor (61) is constituted by a tilted structure in which the first air conveyor (611) and the second air conveyor (612) are climbed so as to move the air and combustible material scattered by the wind power, The first lower conveying conveyor 613 and the second lower conveying conveyor 614 are installed at the lower portions of the air conveyor and the second air conveyor, respectively, with the same upward slope and at a predetermined interval. In particular, the first lower conveying conveyor is configured to be forward-driven so as to discharge falling heavy combustibles to the heavy-matter conveying conveyor, and the heavy-weight conveying conveyor, which is relatively heavy among the combustibles blown by the second lower conveying conveyor, To be discharged in the reverse direction.

Further, a plurality of locking films 616 protruding downward are arranged and installed in the upper part of the inner end of the first air conveyor. As shown in FIG. 5, a plurality of openable locking films 616 are arranged in the width direction of the first air conveyor, and combustible materials having a size difficult to pass through the gap between the engagement films arranged in the width direction of the first air conveyor are caught by the engagement film, . The latching membrane is configured as a separable mounting type so that the upper face side is pressed by the fastening means 6181 of the support member 618 to prevent the escape. In addition, the support member 618 can be moved forward or backward by moving the support member 618 in the longitudinal direction of the first air conveyor. To this end, the rod 6182 formed on one side of the support member is fixed to the fixing portion 6183 And then the nuts 6184 are rotated at both sides of the fixed portion to interrupt the movement. According to such position adjustment, the position of the scattered combustibles can be adjusted, and it is possible to smoothly sort the combustibles by moving them forward and backward according to the amount and size of the combustibles to be scattered. The shape of the latching film may be a rounded rake shape having a large upper width and a narrower bottom width depending on the illustrated embodiment. However, this exemplary shape does not limit the shape of the stopping film of the present invention, but can be changed into various shapes as long as it can be held.

In this way, the catching membrane is composed of a primary air conveyor to a secondary air conveyor, but it is configured to prevent the discharge of flammable material which is light and blown. Large flammable material flies to the cyclone for three-circle selection, . If the cyclone is clogged, the cyclone may fail, so the gulur film composition plays a very important role for continuous operation.

The three-circle selection cyclone 62 is installed at the lower end of the conveying conveyor 302 for conveying the waste that has passed through the particle size selection step and the fine particle sorting step and has a wind power discharge pipe 621 for supplying wind power through the nozzle .

Also, at least one of the three-circle selection cyclones may be installed at one point of the wind power discharge pipe 621 or two or more of the three-point selection cyclones branched at one point of the wind power discharge pipe and laterally at the end of the incombustible conveyor 622 A lateral wind power discharge pipe (623) is installed to provide wind power to the falling incombustible material and re-sort the combustibles. These side discharge pipes are used for separating and re-sorting unsorted and unfiltered micro combustibles, which are caused by the accumulation of soil clusters. At this time, the wind force and the suction force generated in the three-circle selection cyclone are provided through the one side of the blowing motor and the suction force is provided through the opposite side.

Hereinafter, the step of selecting three wind power specific gravity will be described in detail.

The waste having passed through the particle size selection step and the precise particle size selection step is discharged from the end of each conveying conveyor 302 to the incombustible conveying conveyor 623 while being discharged from the wind power discharge pipe 621 of the cyclone sorting cyclone provided at the lower end of the conveying conveyor The combustible contained in the incombustible matter is scattered by the wind power discharged through the first air conveyor 611 of the multistage air conveyor 61 constituting the three- Step. At this time, the combustibles contained in the incombustibles discharged through the particle size selection step are sorted by the wind power, which is heavier than the micro combustibles contained in the incombustible matter discharged through the relatively accurate particle size selection step.

Among the combustible materials in which the incombustibles and the combustibles are sorted by the primary sorting, the heavy combustible material is not introduced into the secondary air conveyor 612 through the engagement film 617 protruding downward from the upper side inside the end of the first air conveyor 611 And a secondary sorting step of dropping and sorting into a flammable conveying conveyor 615 provided below the gap between the first lower conveying conveyor and the second lower conveying conveyor. The reason for selection is that large size heavy combustibles may be burdened with flammable recovery of cyclone for three-source selection.

The lightweight combustible material passing through the secondary sorting flows in the lateral direction of the three-circle sorting cyclone 62 connected to the end of the second air conveyor 612 and then downwardly rotated so as to be dropped and discharged to the lightweight combustible conveying conveyor. And a car sorting step.

In addition, the heavy flammable substance which is scattered by the second air conveyor and heavy in weight is discharged to the heavy combustible conveying conveyor 615 by the second lower conveying conveyor which falls and is driven to rotate reversely.

The heavy combustible conveying conveyor 615 for discharging the heavy combustible material is constructed by installing a driving drum 617 as a permanent magnet type driving drum to sort iron products mixed and discharged together with wind power by wind power and then to discharge only pure combustible materials . The position of the driving drum is preferably located at the end.

In this way, it is possible to prevent environmental pollution, which reduces scattered dust and odor generation, through the step of selecting the three wind power specific gravity.

The weighted flammable material selected through the three steps of selecting the wind specific gravity is passed through a heavy flamelet conveying conveyor 615 to a drying trommel screen to remove the soil buried in the heavy combustible material while finally reducing the water content S500). The dry film Rommel screen (7) has a basic structure similar to the Trommel screen, but the air from the hot air (71) is circulated to remove the moisture from the inside, thereby drying the soil buried in heavy combustibles, So that they are separated from each other.

The lightweight combustibles discharged from the precise particle size selection step and the weighted flammables subjected to the hot air drying step after discharge in the particle size selection step are combined in the conveying conveyor and then supplied to the crusher 8 to obtain the required SRF size (S600). ≪ tb > < TABLE >

In this case, the size of the crushing can be adjusted according to the installation interval of the crushing blade. In the present invention, the crushing size can be, for example, 50 mm or less. However, such a numerical value does not limit the present invention.

(1): Excavator (2): Vibration hopper
(3): Trommel screen (4): dual disc screen
(5): Cyclone for the separation of fine combustibles (6)
(7): Drying Rommel Screen (8): Crusher
(61): multi-stage air conveyor (62): cyclone for three-round selection
(71): hot air (101): Tooth
(301, 302, 501, 504, 701): conveying conveyor
(303, 617): driving drum (502): suction wind power tube
(503): rotary valve (505): blowing motor
(506): Micro flammable wind power discharge pipe (507): Wind power change valve
(508): incombustible conveying conveyor (509): lateral wind power outlet
(621): wind power discharge pipe (622): incombustible conveying conveyor
(623): lateral wind power outlet pipe (611): first air conveyor
(612): second air conveyor (613): first lower conveying conveyor
(614): a second lower conveying conveyor (615): a heavy flammable conveying conveyor
(616): Retention film (618): Support member
(6181): fastening means (6182): rod
(6183):

Claims (10)

Crushing a plastic bag wrapped with an excavator equipped with a toothed tooth or wrapped with municipal waste in a non-crushing manner, and selecting a coarse combustible material;
A particle size selection step of selecting wastes from which coarse combustibles have been removed by size using a Trommel screen;
A precise particle size selection step of precisely screening the high moisture contents falling down to the bottom of the Trommelscreen at the stage of particle size selection using a double disk screen and sucking and sorting the fine combustibles among waste discharged from the lower part using a cyclone for separating micro flammables;
In order to select the wastes discharged from the particle size selection stage and the fine particle size selection stage, each of the three wind selection devices composed of a multi-stage air conveyor and a three-way selection cyclone separator is used to reduce scattered dust and odor, And selecting the three types of wind power specific gravity selected from lightweight combustibles;
A hot air drying step of removing gravel while blowing hot air of the hot air through the air circulation system in the process of passing the heavy combustibles selected and discharged in the step of selecting the three wind power specific gravity through the dry jet Rommel screen;
And a crushing step of producing a lightweight combustible material selected and discharged in the three wind selection stages and a heavy combustible material subjected to the hot air drying step to a required SRF size using a crusher supplied through a single conveying conveyor However,

Wherein the multi-stage air conveyor comprises a first air conveyor and a second air conveyor, the upper and left and right sides of which are closed so that the air and the combustible are scattered by the wind force, And the first lower conveying conveyor and the second lower conveying conveyor are spaced apart from each other at a predetermined interval by a predetermined distance, and the first lower conveying conveyor is configured to be forwardly driven so as to discharge the heavy combustible material falling down to the heavy combustibles conveying conveyor And a second conveying conveyor for conveying the flammable material falling into the second conveyor to the heavy conveyance conveyor, the second conveying conveyor being relatively heavy, The size of the flammable material blown by the air conveyor is large and light. Wherein the solid waste fuel is discharged from the fuel tank.
The method according to claim 1,
In the grain size selecting step, a conveying conveyor supplied to the precise grain size selecting step or a drum driving a conveying conveyor fed to a step of selecting a three-dimensional wind specific gravity is constituted of a permanent magnet type driving drum, , And the conveying conveyor supplied to the step of selecting three wind power specific gravity is configured to control the speed of the conveyor by the inverter motor so as to reduce the overlapping of incombustibles and combustible materials. Way.
The method according to claim 1,
The cyclone for separating micro-combustibles in the step of selecting fine granules is selectively discharged to the lower part of the double disk screen, and the micro-combustibles contained in the waste being conveyed to the conveying conveyor are introduced into the cyclone as the suction wind force of the suction wind- Characterized in that the air is blown through the cyclone upper passage through the dual disc screen and blown to the point where the waste being conveyed by the conveying conveyor falls to use the wind force to select the combustible contained in the double screen passage waste Methods of screening landfill or municipal waste for the manufacture of fuel products.
The method according to claim 1 or 3,
The fine grain size sorting step separates the wastes combined with the micro flammable material by the discharge wind power by the micro flammable wind power discharge pipe installed at the end of the conveying conveyor, and the wind power change valve is installed at the branch point of a part of the passage of the micro flammable wind power discharge pipe, And the lateral incompressibility of the transport conveyor in the lateral direction below the dropping point of the soil conveyor. The wind is blown laterally from the end of the conveyor using a lateral wind power discharge pipe, And separating and re-sorting the combustibles. 2. A method for selecting landfill or municipal waste for the production of solid fuel products.
The method of claim 4,
When the amount of the soil passing through the disk screen increases due to the aggregation of the gravel and the like, the wind power change valve opens the wind power change valve as much as possible and supplies a small discharge wind power to the micro wind power wind power discharge pipe to separate the combustible material. The supplied wind power is increased to separate and reselect the earth and combustible materials, which are difficult to be sorted by the discharge wind force of the micro combustor wind power discharge pipe,
Wherein when the amount of the soil passed through the disk screen is small, the opening of the wind power change valve is reduced so that the wind power supplied to the side wind power discharge pipe is reduced to separate only combustible materials that are not sorted and sorted. Waste sorting method.
The method according to claim 1,
In the step of selecting three wind power specific gravity,
The incombustible matter is discharged to the incombustible conveying conveyor by the wind force discharged through the wind power discharge pipe of the cyclone selecting cyclone installed at the lower end of the conveying conveyor for conveying the waste that has passed through the granulation sorting step and the precise particle sorting step, A first sorting step of splashing the combustible material and introducing the combustible material into the first air conveyor of the multi-stage air conveyor constituting each of the three-element sorting devices of wind power ratio;
A secondary sorting step of dropping the heavy combustibles among the selected combustible materials in the primary sorting step by using a catching membrane provided at an end of the first air conveyor to drop the heavy combustible material into a heavy combustible conveying conveyor;
And a tertiary sorting step of letting the lightweight combustibles having passed through the secondary sorting flow in the lateral direction of the cyclone selecting cyclone connected to the end of the second air conveyor and then downwardly rotating so as to drop and discharge the lightweight combustibles to the conveying conveyor Wherein the method comprises the steps of:
The method of claim 6,
Wherein the heavy combustible conveying conveyor for discharging the heavy combustible material comprises a driving drum constituted by a permanent magnet drum and configured to sort iron materials mixed and discharged as a combustible material by wind power. Selection method.
delete The method according to claim 1,
Characterized in that the catching membrane is constituted by a separable mounting type so that a plurality of the catching membranes are arranged in the width direction of the first air conveyor and the position of the catching membrane is adjusted in the longitudinal direction of the first air conveyor. Selection method.
The method according to claim 1 or 6,
The three-circle selection cyclone is constituted by a wind power discharge pipe provided at the lower end of a conveying conveyor for conveying the waste that has passed the particle size sorting step and the fine particle sorting step to provide wind power, and two or more three- And a lateral wind power discharge pipe branched from one end of the wind power discharge pipe and laterally installed at the end of the incombustible conveying conveyor for providing wind power to the incombustible material falling down to select the combustible material again. Methods of screening landfill or municipal waste.

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