KR101976741B1 - Screening device for pellet manufacturing - Google Patents

Abstract

The present invention relates to a sorting device for manufacturing a pallet, which comprises: a first supply unit to which a branch chip is supplied; a first conveyor for moving the branch chip falling from the first supply unit; a first magnetic force sorting unit for filtering a metallic foreign substance included in the branch chip moving along the first conveyor; a second supply unit to which a neck chip is supplied; a second conveyor for moving the neck chip falling from the second supply unit, and supplying and mixing the branch chip transferred along the first conveyor; a second magnetic force sorting unit for filtering the metallic foreign substance included in the neck chip moving along the second conveyor; a first elevator for ascending wood chips supplied through the second magnetic force sorting unit; an oversize sorter for filtering a chip having a chip size greater than a first predetermined value from the wood chips falling from the first elevator; a first sorter for filtering the wood chip having the chip size less than the first predetermined value and greater than a second predetermined value from the wood chips supplied by passing through the oversize sorter; a second sorter for filtering the wood chip having the chip size smaller than the second predetermined value from the wood chips supplied by passing through the first sorter; a second elevator for ascending the wood chips provided from the first and second sorters; a conveyor for transferring the wood chips discharged from the second elevator, and including a discharge unit for classifying the wood chips transferred by the conveyor for each chip size to discharge the same; and a discharge unit for classifying the wood chips moving along the conveyor for each chip size to discharge the same.

Description

[0001] SCREENING DEVICE FOR PELLET MANUFACTURING [0002]

The present invention relates to a sorting apparatus for manufacturing pellets, and more particularly, to a sorting apparatus for manufacturing pellets, in which wood chips, in which wood chips are broken, and branch chips formed by crushing branch trees, are mixed to form wood chips, And the foreign matter less than the set value is removed from the sorting object in which the sorting operation is performed a plurality of times and the wood chips above the set value are re-crushed. The remaining wood chips are subjected to the non- The present invention relates to a sorting device for pellet production capable of effectively removing metal contaminants and soil contained in wood chips while repeating the sorting process and the crushing process while providing a wood chip having a size required for producing pellets.

Generally, boilers are used for supplying heating water and hot water to homes, offices, factories, and plastic houses, and since boilers have high thermal efficiency and do not leave ashes after burning, they are easy to handle and oil boilers and gas boilers are widely used Is used.

In recent years, the use of oil boilers or gas boilers due to high oil prices has caused a great economic burden due to an increase in fuel costs such as oil and gas. Therefore, in rural areas and mountain-climatic wallpapers, I am having difficulties.

In recent years, the supply and use of boilers capable of using pellet fuel, such as general farms, livestock farmers, dairy farmers, and factories, which use boilers as household or small-scale business, are increasing day by day .

Pellets used as fuel for boilers are produced by crushing wood by sawdust or thinning and then compressing the fuel. It emits less carbon dioxide than fossil fuels such as coal and petroleum, and there are few remnants remaining after burning, . In particular, in areas where urban gas supply is poor, such as farming and fishing villages, or in large-scale housing and dairy farming complexes, the use of pellets that are cheaper than petroleum is increasing for heating purposes.

At present, the main use of pellets is to use more than 1.5 million tons / year for thermal power / biomass co-generation power plants, and most of the pellets used as fuel for power generation depend on imported wood pellets. Domestic pellets are mainly used for household / industrial use, and the annual output is about 200,000 tons.

In order to advance domestic pellet power generation pellets market, it is necessary to secure cheap pellets for cheap domestic pellets in order to secure price competitiveness of imported pellets.

Therefore, it is necessary to develop the technology to produce wood by-products (unused forest biomass) such as tree trunks and roots, which have been used as raw materials for waste disposal or composting, as fuel pellets for domestic thermal power / biomass power plants.

In addition, as the use of domestic non-use forest biomass fuels at the power plant enables the acquisition of REC weights, the added value as fuel for unused forest biomass has increased.

Korean Patent Laid-Open Publication No. 10-2011-0101366 (Wood Pellet Making Equipment for Fuel) and Korean Patent Registration No. 10-0878051 (Wood Pellet Making Method and Wood Pellet Making Facility) disclose a wood pellet making apparatus.

The pelletizing apparatus according to the related art has a problem in that foreign matter such as metal foreign matter and soil contained in the wood chip can not be filtered effectively because the process of filtering the foreign matters contained in the neck chip and the branch chips is performed in a single process.

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Therefore, there is a need for improvement.

According to the present invention, there is provided a wood chip comprising a wood chip formed by shredding a wood chip and a branch chip formed by crushing a tree branch into a wood chip, a plurality of wood chips are selected according to the size of the chip, Removing foreign objects less than the set value in the sorting object, re-crushing the wood chips above the set value, and removing the foreign materials through the non-gravity sorting process of the remaining wood chips, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a sorting device for pellet production, which can effectively remove metal foreign substances and soil, provide wood chips of the size required for producing pellets, and reduce the time and cost required for manufacturing pellets.

According to the present invention, there is provided a semiconductor device comprising: a first supply unit to which a branch chip is supplied; A first conveyor for moving the branch chip dropped by the first supply unit; A first magnetic force sorting part for filtering metal foreign substances contained in branch chips moved along the first conveyor; A second supply unit to which the neck chip is supplied; A second conveyor for moving the neck chip falling from the second supply portion and feeding and mixing branch chips transferred along the first conveyor; A second magnetic force separator for filtering metallic foreign substances contained in the neck chip moved along the second conveyor; A first elevator for lifting a wood chip supplied through the second magnetic force selector; An oversize selector for picking up chips from the wood chips falling from the first elevator furnace, the chips having a size larger than a first set value; A first selector which filters wood chips whose chip size exceeds a second set value which is less than a first set value, from a wood chip supplied through the oversize selector; A second sorting device for picking up a wood chip having a size smaller than a second set value from a wood chip supplied through the first sorting device; A second elevator for lifting the wooden chips provided from the first and second sorting machines; And a discharge unit for transferring the wood chips discharged from the second elevator and sorting the wood chips transferred by the conveyor into chip sizes and discharging the wood chips. And a discharge unit for sorting and discharging the wood chips moving along the conveyor according to chip sizes.

Further, the vibration providing portion of the present invention may further include: a first vibrator that provides vibration to separate the foreign object from the wood chip provided from the first discharge hopper; A second vibrator that provides vibration to separate the foreign object from the wood chips provided from the second discharge hopper; A third vibrator that provides vibration to separate the foreign matter from the wood chips provided from the third discharge hopper; And a fourth vibrator for providing vibration to separate foreign matter from the wood chip provided from the fourth discharge hopper.

Also, the non-specific-weight selecting portion of the present invention may include a main body having an inlet, a first outlet, and a second outlet; A hydraulic pressure supply unit for supplying hydraulic pressure to the inside of the main body and separating the wood chips having different specific gravity from each other and moving them to the first outlet or the second outlet; And a wood chip supplied through the inlet port to the hydraulic pressure supply unit side and guiding the wood chip and foreign matter separated by the hydraulic pressure supplied from the hydraulic pressure supply unit to the first outlet port and the second outlet port, And a guide portion.

The guide portion of the present invention may further include: a first inclined surface which is inclined from one side of the inlet to the second outlet; A second inclined surface disposed to be inclined from the other side of the inlet to the hydraulic pressure supply portion so as to be opposed to the first inclined surface and disposed relatively lower than the first inclined surface; A third inclined surface for preventing the wood chip falling along the second inclined surface from colliding with the hydraulic pressure supply portion; And a fourth inclined surface which is disposed to be spaced apart from the third inclined surface and which divides the first outlet and the second outlet.

The sorting apparatus for manufacturing pellets according to the present invention comprises a first sorting step of sorting wood chips into a large, medium, and small size by sorting wood chips in which a neck chip and a branch chip are mixed, A plurality of sorting screens for carrying out a second sorting step of classifying and sorting the wood chips back to the middle, middle, and small, and a sorting screen for sorting the wooden chips sorted and discharged by the sorting screens and the foreign matter having a specific gravity difference, It is possible to effectively remove impurities such as metal impurities and soil, thereby improving the quality of the pellets and making it possible to continuously perform the pellet production process, thereby reducing the time and cost required for mass production of the pellets.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a process diagram illustrating a pellet manufacturing process by a pellet sorting apparatus according to an embodiment of the present invention; FIG.
FIG. 2 is a configuration diagram illustrating a pellet sorting apparatus according to an embodiment of the present invention. Referring to FIG.
3 is a cross-sectional view illustrating a specific gravity selecting unit of the sorting apparatus for producing pellets according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a specific gravity selecting unit of a pellet sorting apparatus according to another embodiment of the present invention.
FIG. 5 is a cross-sectional view illustrating the attaching / detaching section of the sorting apparatus for manufacturing pellets according to another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the sorting apparatus for producing pellets according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a process diagram showing a pellet production process by a pellet production apparatus for producing pellets according to an embodiment of the present invention. FIG. 2 is a schematic view showing a pellet production apparatus for producing pellets according to an embodiment of the present invention, Sectional view of a specific gravity selecting unit of the sorting apparatus for producing pellets according to an embodiment of the present invention.

1 to 3, a pellet production sorter for manufacturing pellets according to an embodiment of the present invention includes a first supply part 10 to which a branch chip is supplied, a second supply part 10 to move a branch chip dropped by the first supply part 10, A first conveyor 12, a first magnetic force sorting portion 14 for filtering metal foreign substances contained in the branch chip moved along the first conveyor 12, a second supply portion 30 for supplying a neck chip, A second conveyor 32 for moving the neck chip dropped from the second supply part 30 and mixing and feeding branch chips to be conveyed along the first conveyor 12 and a second conveyor 32 for moving along the second conveyor 32 A first elevator 36 for raising a wood chip supplied through the second magnetic force selecting part 34 and a second elevating part 36 for raising a wood chip supplied through the first elevator 36 , An oversize selector (52) for picking up chips from the wooden chips falling from the chip, whose size exceeds a first set value, A first sorting device 72 for picking up wood chips from the wood chips supplied through the sorting device 52, the chip chips having a size exceeding a second predetermined value smaller than a first set value, A second selector 74 for picking up chips from the chip having a size smaller than the second set value and a second elevator 82 for raising the wooden chips provided from the first and second sorting machines 52 and 72 And a discharge unit for transferring the wood chips discharged from the second elevator 82 and classifying and discharging the wood chips transferred by the conveyor by chip size.

Accordingly, when the branch chips and the neck chips are supplied through the supply portions 10 and 30 of the pellet manufacturing system, the metal foreign substances contained in the branch chips are firstly removed by the first magnetic force sorting portion 14, After the metal particles have been mixed, the metal particles are removed secondarily, and then they are introduced into the oversize sorter 52 of the present embodiment.

The wood chips passing through the oversize sorter 52 are moved along the fourth conveyor 56 and sorted by the first sorting part 72 and the second sorting part 74 in a large, The wood chips exceeding about 50 mm are filtered by the oversize separator 52 to be crushed at the crushing portion 54 and the smallest wood chip passing through the second sorting portion 74 is crushed at a size of about 10 mm or less And the wood chip passing through the first sorting part 72 is a wood chip having a size of about 10 to 15 mm.

The wood chips passing through the first and second sorting machines 72 and 74 are lifted along the second elevator 82 and fall back to the fifth conveyor 84 and then back to the public .

The discharge portion of the present embodiment includes a first discharge hopper 92 for discharging a wood chip having a chip size of a wood chip transferred along the fifth conveyor 84 to a value less than the first set value to the outside of the fifth conveyor 84, A second discharge hopper 94 for discharging a wood chip having a chip size of the wood chips transferred along the conveyor 84 to a value equal to or higher than the first set value and lower than the second set value to the outside of the fifth conveyor 84, A third discharge hopper 95 for discharging a wood chip having a chip size of the wood chips transferred along the first conveyor 84 to a second set value or more and less than a third set value to the outside of the fifth conveyor 84, And a fourth discharge hopper 96 for discharging the wood chips whose chip size of the wood chips is smaller than the third set value and lower than the fourth set value to the outside of the fifth conveyor 84.

The first discharge hopper 92 is installed such that the wood chips transferred along the fifth conveyor 84 are moved past the upper surface of the first discharge hopper 92 and the wood chips passing through the upper surface of the first discharge hopper 92 The wood chips are dropped into the first supply hopper 92 as the wood chips are introduced into the first supply hopper 92 depending on whether the sliding gate provided on the first discharge hopper 92 is opened or closed.

A pair of screws are provided adjacent to each other on the inside of the sliding gate, and the wood chip is rotated by the driving of the motor to fall on the vibration providing portion after passing through the pair of screws.

As described above, the wood chips that pass through the discharge portion pass through the vibration providing portion, so that the foreign matter adhering to the wood chip is separated and discharged from the wood chip, and the vibration providing portion is separated from the wood chips provided from the first discharge hopper 92 A second vibrator for providing vibration to separate the foreign object from the wood chip provided from the second discharge hopper 94 and a second vibrator for providing vibration to the wood supplied from the third discharge hopper 95, A third vibrator that provides vibration to separate the foreign object from the chip, and a fourth vibrator that provides vibration to separate the foreign object from the wood chip provided from the fourth discharge hopper 96.

Accordingly, the wood chips transferred by being classified according to the respective chip sizes are supplied with vibration, and the foreign substances adhering to the wood chips are supplied separately from the wood chips.

The wood chip dropped in the vibration isolator passes through the specific gravity separator 60 and separates the wood chip having a light specific gravity and the foreign matter having relatively heavy specific gravity such as earth and stone.

In addition, a specific gravity discriminating portion 60 is provided in order to filter foreign substances from the wood chips discharged from the first separator 72 and the second separator 74.

The specific gravity separator 60 of the present embodiment includes a main body 162 having an inlet 164, a first outlet 166 and a second outlet 168, A hydraulic pressure supply unit 170 for separating the wood chip and the foreign material from the first wood chip and moving the wood chip to the first discharge port 166 or the second discharge port 168 and the wood chip supplied through the inlet port 164 to the hydraulic pressure supply unit 170 And a guide unit 180 for guiding the wood chip separated by the hydraulic pressure supplied from the hydraulic pressure supply unit 170 and foreign matter to the first discharge port 166 and the second discharge port 168 to be separated and discharged.

Therefore, the wood chip falling through the vibration-providing portion 50 flows into the main body 162 through the inlet port 164 and passes through the main body 162. At this time, The light wood chips are moved to the second discharge port 168 side and foreign substances such as metallic foreign substances having a relatively heavy specific weight drop to the first discharge port 166 side.

Thus, while passing through the magnetic separator, the foreign matter can be struck three times while supplying wind to the wood chip, which is filtered through the first and second metal debris.

The guide portion 180 of the present embodiment has a first inclined surface 182 inclined from one side of the inlet port 164 to the second outlet port 168 and a second inclined surface 182 inclined from the other side of the inlet port 164 to oppose the first inclined surface 182, A second inclined surface 184 inclined toward the supply portion 170 and disposed relatively lower than the first inclined surface 182 and a second inclined surface 184 inclined relative to the first inclined surface 182 and the wood chip falling along the second inclined surface 184 to the hydraulic pressure supply portion 170 The prevention of the collision includes a third inclined surface 186 and a fourth inclined surface 188 disposed to be spaced apart from the third inclined surface 186 and defining a first outlet 166 and a second outlet 168 .

The wooden chip falling through the inlet 164 is seated on the first sloped surface 182 and falls while sliding and the wooden chip falling from the first sloped surface 182 is seated on the second sloped surface 184, And falls down.

The wooden chip falling along the second inclined surface 184 is caught by the catching portion and accumulated when the wooden chips are stacked beyond the catching portion and fall down And is seated on the third inclined surface 186.

Since the lower end of the third inclined surface 186 and the upper end of the fourth inclined surface 188 are arranged so as to be spaced from each other and the wind supplied from the hydraulic pressure supply unit 170 through the gap is provided from the lower side to the upper side, This light wood chip moves along the wind to the opposite side of the fourth slope 188.

As described above, the foreign matter having a heavy specific gravity and the wood chip are separated and discharged to the outside of the main body 162 along the first discharge port 166 and the second discharge port 168, and are transferred upward by the operation of the elevator 82 And is transferred to the next process by the operation of the fifth conveyor 84. [

FIG. 4 is a cross-sectional view of a specific gravity selecting unit of a pellet-making sorting apparatus according to another embodiment of the present invention, and FIG. 5 is a cross-sectional view of a separating unit of a pellet sorting apparatus according to another embodiment of the present invention.

4 and 5, the specific gravity separator according to another embodiment of the present invention includes a connection panel 186a formed integrally with the third inclined surface and detachably installed in the main body, a connection panel 186a, And a detachable portion 200 for connecting or disconnecting the main body.

Therefore, the wood chip and foreign matter falling from the second inclined surface are slid and discharged after being collided with the third inclined surface, so that the third inclined surface may be deformed or broken by the collision. In this embodiment, the third inclined surface is deformed or broken The operator can operate the detachable part 200 to detach the connection panel 186a from the main body and separate the connection panel 186a and the third inclined surface from the main body.

Thereafter, when the new third inclined surface is inserted into the hole formed in the main body and the connection panel 186a is seated in the hole, the connection panel 186a is coupled to the main body by the operation of the detachable part 200, .

The connecting panel 186a is provided with a step portion 186b which is seated on the edge of the hole of the main body and the detachable portion 200 is provided on the edge of the step portion 186b and the main body, Touch manner to the hole portion formed in the base plate.

The detachable part 200 of the present embodiment includes a plurality of hook members 202 projecting from the rim of the hole of the main body, an insertion groove formed in the rim of the connection panel 186a so as to insert the hook member 202, A hooking member 204 which is provided so as to be capable of projecting and retracting in the direction of the hooking member 202 and which is engaged with the hooking member 202 and an operation of the engaging member 204 and the connecting panel 186a so as to press the engaging member 204 inwardly An elastic member 206 interposed between the inner wall of the space portion 208 and a releasing portion 210 for providing a tension for pulling the engaging member 204 inside the operating space portion 208.

Therefore, when the third inclined surface is installed on the main body, the third inclined surface is inserted into the hole formed in the main body, and the connecting panel 186a is seated on the edge of the hole of the connecting panel 186a when the third inclined surface is seated on the edge of the hole of the connecting panel 186a .

At this time, since the hook member 202 is inserted into the insertion groove portion, the inclined surface of the engaging member 204 is pressed inside the operation space portion 208, so that the elastic member 206 is compressed and the hook member 202 is inserted .

When the hook member 202 is completely inserted, the engaging member 204 is disposed to protrude inwardly of the insertion groove due to the restoring force of the elastic member 206, and the hook member 202 and the engaging member 204 are engaged The coupling state of the hook member 202 is maintained so that the connection panel 186a is installed in close contact with the groove portion of the main body.

The detachable portion 200 of the present embodiment further includes a releasing portion 210 for releasing the engagement between the hook member 202 and the engaging member 204 and the releasing portion 210 is engaged with the engaging member 204 A wire 212 extending outward from the connection panel 186a and a lever member 214 installed at the outer end of the wire 212. [

When the connecting panel 186a is separated from the main body as described above, when the latch member 204 is retracted to the inside of the operating space portion 208 by pulling the lever member 214 to the outside of the main body, The engagement between the members 202 is released so that the connecting panel 186a and the third inclined surface can be easily separated from the main body.

As a result, the wood chips, in which the wood chips are broken, and the branch chips formed by crushing the branch trees are mixed to form the wood chips, the wood chips are sorted in plural according to the size of the chip, The wood chips which are not more than the set value are removed from the object and the wood chips above the set value are re-crushed. The remaining wood chips are subjected to the screening process to remove the foreign substances, It is possible to provide a sorting apparatus for pellet production capable of effectively removing metal foreign substances and soil and providing wood chips of the size required for producing pellets.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

Further, the sorting apparatus for pellet production has been described as an example, but this is merely an example, and the sorting apparatus of the present invention can be used for other products other than the sorting apparatus for producing pellets.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: first supply part 12; The first conveyor
14: first magnetic force selecting section 30: second supplying section
32: second conveyor 34: second magnetic force selecting section
36: first elevator 52: oversize selector
52a: third conveyor 52b: third magnetic force selecting section
54: crushing part 56: fourth conveyor
58: sorting feeder 60: gravity sorter
72: first selector 74: second selector
82: second elevator 84: fifth conveyor
92: first discharge portion 94: second discharge portion
95: third discharge portion 96: fourth discharge portion

Claims (5)

A first supply unit to which the branch chips are supplied;
A first conveyor for moving the branch chip dropped by the first supply unit;
A first magnetic force sorting part for filtering metal foreign substances contained in branch chips moved along the first conveyor;
A second supply unit to which the neck chip is supplied;
A second conveyor for moving the neck chip falling from the second supply portion and feeding and mixing branch chips transferred along the first conveyor;
A second magnetic force separator for filtering metallic foreign substances contained in the neck chip moved along the second conveyor;
A first elevator for lifting a wood chip supplied through the second magnetic force selector;
An oversize selector for picking up chips from the wood chips falling from the first elevator furnace, the chips having a size larger than a first set value;
A first selector which filters wood chips whose chip size exceeds a second set value which is less than a first set value, from a wood chip supplied through the oversize selector;
A second sorting device for picking up a wood chip having a size smaller than a second set value from a wood chip supplied through the first sorting device;
A second elevator for lifting the wooden chips provided from the first and second sorting machines;
And a discharge unit for transferring the wood chip discharged from the second elevator and classifying and discharging the wood chips transferred by the conveyor by chip size,
The discharge portion
A first discharge hopper for discharging a wood chip having a chip size of a wood chip transported along the first conveyor lower than a first set value to the outside of the first conveyor;
A second discharge hopper for discharging a wood chip having a chip size of a wood chip transferred along the first conveyor to a first set value or more and less than a second set value to the outside of the first conveyor;
A third discharge hopper for discharging a wood chip having a chip size of a wood chip transferred along the first conveyor to a second set value or more and less than a third set value to the outside of the first conveyor; And
And a fourth discharge hopper for discharging the wood chip outside the first conveyor, wherein a chip size of a wood chip transferred along the first conveyor is less than a third set value and less than a fourth set value,
The wood chip passing through the discharge portion passes through the vibration providing portion, so that the foreign matter adhering to the wood chip is separated from the wood chip,
The vibration-
A first vibrator that provides vibration to separate the foreign object from the wood chip provided from the first discharge hopper;
A second vibrator that provides vibration to separate the foreign object from the wood chips provided from the second discharge hopper;
A third vibrator that provides vibration to separate the foreign matter from the wood chips provided from the third discharge hopper; And
And a fourth vibrator for providing vibration so that foreign matter is separated from the wood chips provided from the fourth discharge hopper,
The wood chip dropped by the vibration isolator is separated from the wood chip having a light specific gravity while passing through the specific gravity separating portion and foreign matter having relatively high specific gravity such as earth and stone,
The non-
A main body having an inlet, a first outlet and a second outlet;
A hydraulic pressure supply unit for supplying hydraulic pressure to the inside of the main body and separating the wood chips having different specific gravity from each other and moving them to the first outlet or the second outlet; And
A guide for guiding the wood chips supplied through the inlet to the hydraulic pressure supply unit side and guiding the wood chips separated by the hydraulic pressure supplied from the hydraulic pressure supply unit to the first outlet port and the second outlet port, Wherein the pellet is a pellet.
delete delete delete The apparatus according to claim 1,
A first inclined surface arranged to be inclined from one side of the inlet to the side of the second outlet;
A second inclined surface disposed to be inclined from the other side of the inlet to the hydraulic pressure supply portion so as to be opposed to the first inclined surface and disposed relatively lower than the first inclined surface;
A third inclined surface for preventing the wood chip falling along the second inclined surface from colliding with the hydraulic pressure supply portion; And
And a fourth inclined surface spaced apart from the third inclined surface and partitioning the first outlet and the second outlet.

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