KR20190018180A - Pretreatment method and apparatus for palm by-product EFB to manufacture high quality pellet and the high quality palm EFB pellet manufactured by the pretreatment method - Google Patents

Abstract

The present invention relates to a pretreatment method of a palm byproduct for manufacturing a high quality cocoanut empty fruit bunch (EFB) pellet, and to an apparatus thereof. The pretreatment method of the present invention comprises the steps of: a) obtaining a palm fiber by crushing and compressing a cocoanut EFB, which is a by-product of a palm tree; b) supplying a predetermined amount of the palm fiber to a treatment tank in which an agitator is installed and treated water flows; c) performing a pretreatment while moving the palm fiber and the treated water in a direction reverse to each other in the treatment tank, and controlling the input amount of the palm fiber, the supply amount of the treated water, and a water temperature; d) discharging the pretreated palm fiber outside the treatment tank; and e) compressing the palm fiber discharged after the pretreatment with a compressor to reduce the moisture content to 50% or less. The apparatus (1) for pretreatment of the present invention comprises: a treatment tank (3) for containing treated water (2); an input unit (4) provided at a front end of the treatment tank (3), and having a palm fiber (10) to be pretreated, introduced thereinto; a discharge unit (5) provided at a rear end of the treatment tank (3), and discharging the pretreated palm fiber (10); a water supply pipe (6) installed at the rear end of the treatment tank (3), and supplying the treated water (2); a drain pipe (7) installed at the front end of the treatment tank (3), and discharging the treated water flowing toward the front end thereof; at least one opening and closing valve and a draining pipe installed at the bottom of the treatment tank (3); a plurality of agitators (11) axially installed in the treatment tank (3) to be rotated, agitating the palm fiber (10) and moving the same to the rear end of the treatment tank (3); a perforated net (13) for surrounding a lower portion of the agitators (11); and a motor (12) and a power transfer means for rotating the agitators.

Description

TECHNICAL FIELD The present invention relates to a pretreatment method and an apparatus for a high-quality pellet by-product, and a pellet produced by the pretreatment method.

The present invention relates to a high-quality pellet produced by a method and an apparatus for pretreating a by-product of palm for producing high-quality pellets and a pretreatment method thereof, and more particularly to a pellet of palm fruit (EFB) So that the quality requirements as a fuel in a boiler or the like are satisfied.

As one of the new and renewable energy sources, the demand for biomass fuel pellets as a fuel for power plants and industrial boilers is increasing, but until now, the production and use of pellets made of wood or wood by- There is a limit in the supply of wood, and there is a problem in that a long-term supply of water is not ensured.

Palm farms in Southeast Asia, particularly Malaysia and Indonesia, harvest Fresh Fruit Bunch (FFB) throughout the year and then produce palm oil. Empty Fruit Bunch (EFB), which is produced during the production of palm oil, reaches tens of millions of tons per year, but most of them can not be recycled. .

There have been many attempts to make pellets of fuels by using an emulsion blister (EFB). However, most of them have not been used properly because they do not satisfy quality requirements as strict fuel standards such as power plants.

On the other hand, in the farm farm, a large amount of various kinds of fertilizer is used (sprayed) in order to increase yield when cultivating palm fruit. According to the results of research and analysis by the present inventor, various components of fertilizer such as potassium Chloride (Cl), etc. were found to remain in a large amount in the vinous bundles of palm fruit, and when these fertilizer components were remained (contained), the palm fruit bundle (EFB) Excessive chloride (Cl) in the residual fertilizer components causes high temperature corrosion in the boiler, and excessive potassium (K) causes a decrease in the melting temperature of the ash, thereby generating clinker.

Although the palm fruit bundle (EFB) is a biomass resource generated tens of millions of tons annually in Southeast Asia and the like, it is regarded as a waste which pollutes the environment at present. If it can be converted into pellets satisfying the fuel standard, It can be a renewable energy source that can guarantee supply. As a result, income and jobs will naturally increase, and cheap and more stable renewable energy resources will be secured and provided.

Korean Patent Registration No. 10-1389982 (Title of the Invention: Pelletizing Apparatus Using Palm by-product and Method for Manufacturing the Same, Apr. 30, 2014.) Korean Registered Patent No. 10-1484544 (the name of the invention: pellets for renewable energy fuels using a by-product of a farm and a method for producing the same) Korean Registered Patent No. 10-1442769, entitled "Pellets for Fuel of Pulverized Coal Fired Power Plant Using Palm by-product, and Method for Producing the Same", Apr. 23, 2014)

The present invention effectively removes by-products of palm trees which are discarded after use, such as potassium (K) and chloride (Cl) residues in palm fruit bundles (EFB) The present invention provides a method for pre-treating palm byproducts for manufacturing pellets of high quality satisfying the requirements and an apparatus therefor.

Another object of the present invention is to provide a high-quality pellet obtained by pelletizing a palm by-product or palm fiber having a residual amount of potassium (K) of 0.2% or less and a residual amount of chloride (CI) of 0.05% or less by the pretreatment method.

The pretreatment method of the present invention comprises the steps of: a) obtaining a palm fiber by crushing and pressing a palm fruit hollow fiber bundle (EFB), which is a by-product of palm wood, b) supplying palm fiber to the treatment tank, c) the palm fiber and the treated water are moved in opposite directions in the treatment tank, but the pretreatment is carried out while adjusting the amount of the palm fiber, the amount of the treated water and the water temperature, d) the pretreated palm fiber is discharged out of the treatment tank, e ) And compressing the palm fiber discharged after the pretreatment with a compactor to lower the water content to 50% or less.

In the above step, the palm fiber having a lower water content of 50% or less is temporarily stored in a storage hopper, and then moved to and inserted into the pellet manufacturing apparatus to produce high quality pellets from which residual fertilizer components have been removed.

And the immersing time of the palm fiber in the treated water is maintained at 60 to 90 minutes.

The present invention includes a pellet obtained by pelletizing a palm by-product or palm fiber having a residual amount of potassium (K) of 0.2% or less and a residual amount of chloride (CI) of 0.05% or less by the pretreatment method.

A pretreatment apparatus according to the present invention comprises: a treatment tank for desalting treated water; a charging unit provided at the end of the treatment tank for charging the pretreatment palm fiber; a discharge unit provided at a stage after the treatment tank to discharge the pretreated palm fiber; A water supply pipe provided at a downstream end of the treatment tank for supplying treated water, a drain pipe provided at the end of the treatment tank for discharging treated water flowing to the treatment tank front end, at least one opening / closing valve provided at the bottom of the treatment tank, A plurality of agitators provided in the treatment tank for transferring the palm fiber into the treatment tank while stirring the palm fiber in the treated water, a perforated net surrounding the lower portion of the agitator, a motor for rotating the agitator, and a power transmission means .

The stirring device includes a pair of right and left circular plates, a shaft rod fixed to the center of the circular plate, a shaft bracket for pivotally supporting both side portions of the shaft rod, a plurality of stationary rods fixed between the circular plates, And a plurality of stirring rods fixed by a plurality of rows and maintained at a predetermined interval L.

And the substantially middle portion of the stirring rod is bent at a predetermined angle in the direction opposite to the direction in which the stirrer rotates.

The present invention is characterized in that a fertilizer component such as potassium (K) or chloride (Cl), which is an ionic substance remaining in the fiber (10) obtained by crushing and pressing a palm fruit bean bundle (EFB) It dissolves very well and has the effect of being efficiently removed.

In the present invention, since the direction of movement (moving direction and direction of discharge) of the palm fiber 10a and the direction of flow of the treatment water 2 are reversed in the pretreatment process, the palm fiber 10b finally discharged is cleanly cleaned The residual fertilizer component is dissolved and melted, and most of the effect is eliminated.

In the present invention, the stirring rods 33, 34, 35 and 36 are bent (bent) in the direction opposite to the rotation of the stirrer 11 so that even when the palm fiber 10a moves to the rear stirring device 11, And the agitation and movement of the palm fiber 10a are all performed in the water of the treatment water 2 so that the pretreatment efficiency is excellent and the rotational load of the agitator 11 is greatly reduced The driving energy of the motor 12 and the like can be reduced, so that energy and cost can be reduced.

In the present invention, a part of the palm fibers, which are separated from the palm fiber bundle 10a by the underwater space portion 52 formed between the shaft rod 21 and the fixing rods 25, 27, 29 and 31, So that the palm fiber is not accumulated in the vicinity of the shaft rod 21 because the water drops into the treated water 2 by the underwater space portion 52.

In the present invention, the palm fiber having the residual fertilizer component removed by the pretreatment and having a water content lower than 50% is temporarily stored in a storage hopper, and then moved to a pellet manufacturing apparatus to remove potassium (K) and chloride (Cl) There is an effect that a high-quality pellet can be produced.

The present invention is a very useful invention having an effect that the fertilizer component remaining in the palm fiber 10 is most economically and efficiently removed by optimally setting the temperature of the treated water 2 and the dissolution time.

1 is a flowchart of a preprocessing process according to an embodiment of the present invention;
2 is a configuration diagram of a preprocessing apparatus shown as one example of the present invention.
3 is a plan view of the pretreatment apparatus shown as one example of the present invention.
4 is a partially enlarged plan view of the pretreatment apparatus shown as one example of the present invention.
5 is a longitudinal sectional view of the pretreatment apparatus shown as one example of the present invention.
6 is a cross-sectional view of the pretreatment apparatus shown as one example of the present invention.
Fig. 7 is a partial perspective view of the perforated mesh shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the embodiments of the present invention, the same components as in the drawings are denoted by the same reference numerals as possible, and detailed descriptions of known configurations and functions are omitted so as not to obscure the gist of the present invention. May be different from what is actually implemented with the schematized drawings in order to easily describe the embodiments of the present invention.

In general, timber is naturally grown without fertilizer. Palm tree has a lifespan of 20 to 30 years. In order to increase palm fruit yield, a large amount of fertilizer is fertilized each year. Potassium (K) and chloride (Cl) component and the like remain in the palm fruit bundle (EFB). The residual fertilizer component has been found to have a direct influence on the combustion quality as a fuel. In the present invention, residual fertilizer components such as potassium (K) and chloride (Cl) are removed by pretreatment before producing the pellets using the by- As fuel pellets, the quality is greatly improved and improved.

The present invention utilizes the property that ionic substances such as potassium (K) and chloride (Cl), which remain in a large amount in palm fruit flour (EFB), dissolve very well in water (treated water) Disclosed are a method and an apparatus capable of removing the residual fertilizer component most economically and efficiently by treating at an effective water temperature and time.

FIG. 1 is a flow chart showing a pretreatment process of a by-product of a farm according to an embodiment of the present invention. FIG. 1 is a view showing a step of preparing a palm tree by-product, such as a palm fruit bundle (EFB) (Step S2) to make a palm fiber by-product (EFB) pulverized and squeezed (step S2), a step of making a fiber state (step S3), and a step of supplying a certain amount of palm fiber to a treatment tank (Step S5) of moving the palm fiber and the treated water in a reverse direction to each other in the treatment tank by adjusting the amount of palm fiber, the amount of treated water, and the temperature of the treated water (step S5) (Step S6) of lowering the water content to 50% or less by dehydrating and / or compressing the dehydrated water with a dehydrator and / or a compactor.

In step S6, the palm fiber having a moisture content lowered to 50% or less is temporarily stored in a storage hopper (step S7). Then, the palm fiber is moved into the pellet manufacturing process using an automatic feeder, The method may further include or further include the step of manufacturing the pellet (step S8).

The present invention further includes a pellet obtained by pelletizing a palm by-product or palm fiber having a residual amount of potassium (K) of 0.2% or less and a residual amount of chloride (CI) of 0.05% or less by the pretreatment method.

The palm fiber bundle 10 is processed to crush and squeeze the palm fruit bundle (EFB), which is a by-product of the palm, to loosen, disassociate or break the fiber to maximize the contact with the treated water 2.

FIG. 2 shows a pretreatment device 1 for a palm by-product according to an embodiment of the present invention. The pretreatment device 3 includes a treatment tank 3 having an open upper part and desalinated water 2, A discharge section 5 provided at the rear end of the treatment tank 3 for discharging the pretreated palm fiber 10b and a discharge port 5 provided at the rear stage of the treatment tank 3, A drain pipe 7 provided at the front end of the treatment tank 3 for discharging the treated water 2 flowing in the forward direction from the rear end of the treatment tank 3, At least one water discharge pipe 9 installed at the bottom 3a of the treatment tank 3 and provided with an on-off valve 8, A motor 12 for rotating the stirrer 11 and a power transmitting means and a stirrer 11 for rotating the stirrer 11 so that the residual fertilizer components are dissolved in the treated water 2 while being transferred to the downstream of the treatment tank 3, Installed on the unit and includes a geolreummang or perforated cores (13) surrounding the lower portion of the agitator (11).

The present invention further includes an inclined discharge plate (14) installed at the rear end of the treatment tank (3) so that the pretreated palm fiber (10b) can be easily discharged.

The direction of movement of the palm fiber in the present invention and the direction in which the treatment water 2 flows are opposite to each other so that the palm fiber 10a moves to the discharge portion 5, And the chloride (CI) are continuously dissolved. Therefore, not only the palm fiber 10b to be finally discharged is cleanly cleaned but also residual fertilizer components such as potassium (K) and chloride (Cl) are mostly dissolved and removed.

The water supply pipe 6 is provided with a water supply source 15 and an on-off valve 16. When the water supply pipe 6 is not in use, the water supply pipe 6 can be closed by the on- A valve 17 may be provided to adjust the drainage amount of the treated water 2 or to stop drainage.

The upper water surface 2a of the treatment water 2 is slightly lower than the upper surface of the treatment tank 3 so as not to flow over the upper part of the treatment tank 3. [

The stirrer 11 includes a pair of left and right circular plates 19 and 20 spaced apart from each other by a predetermined distance and a shaft rod 21 fixed through a center of the circular plates 19 and 20, Shaft brackets 22 and 23 supported on both sides of the shaft rod 21 projecting outwardly from both sides of the treatment tank 3 and fixed to both upper surfaces of the treatment tank 3, A plurality of fixing rods 25, 26, 27, 28, 29, 30, 31, 32 parallel to the shaft rod 21 and spaced apart from the shaft rod 21, A plurality of stirring rods 33 fixed in a direction orthogonal to the fixing rods 25 and 26 so as to be able to stir the stirring rods 25 and 26 and maintained at predetermined intervals L, A plurality of stirring rods 34 fixed in a direction orthogonal to the fixed rods 27 and 28 and maintained at a predetermined distance L and a plurality of stirring rods 34 fixed in a direction perpendicular to the fixed rods 29 and 30, A plurality of stirring rods 35 for holding the stirring rod L, And a plurality of stirring rods 36 fixed in a direction of lapping and maintained at a predetermined interval L.

The stirring rods 33, 34, 35 and 36 are connected to the disc 19 through the fixing rods 25, 26, 27, 28, 29, 30, 34 and 35 between the shaft rod 21 and the fixing rods 25, 27, 29 and 31. The stirring rods 33, Even if some of the palm fibers 10a are moved by the shaft rod 21, the water drops into the treated water 2 by the underwater space portion 52, It is configured not to accumulate around.

The substantially middle portion of the stirring rods 33, 34, 35 and 36 is rotated at a predetermined angle? In the direction opposite to the rotating direction of the stirrer 11, for example, about 130 占 preferably about 120 占 to 150 占The palm fiber 10a does not rise above the treated water 2 even when the palm fiber 10a bends and moves to the agitator 11 at the rear end so that the stirring and movement of the palm fiber 10a is completed in the water of the treated water 2 And the rotation load of the agitator 11 is greatly reduced. Therefore, the size of the motor 12 and the like can be reduced, thereby saving energy and cost.

Also, in the case of the conventional pretreatment apparatus in which the stirring bar is formed in a straight line, since the method of moving the palm fiber in a heavier state to the agitator at the rear end (rear end) , The palm fiber 10a is moved in the direction of the shaft rod, and thus the preprocessing efficiency is greatly reduced. However, in the present invention, the palm fiber 10a is bent by the bending structure of the stirring rods 33, 34, 35, It is possible to prevent the palm fiber 10a from being moved in the water of the treatment water 2 by the pushing-up method and the entirety of the piercing network 13 and the agitator 11, The stirring load and the moving load are not so large, and the palm fiber 10a is stirred and moved in the water of the treated water 2, so there is no overloading factor.

The distance L between the stirring rods 33, 34, 35 and 36 is equal to or smaller than the diameter of the stirring rods 33, 34, 35 and 36, The stirring rods 33, 34, 35, and 36 are rotated in the water of the treated water 2 without a large resistance and are in a state of being entangled with each other (Web state) The palm fibers 10a of the first and second stirring rods 33, 34, 35, and 36 are prevented from passing or being separated from each other.

In the present invention, the substantially middle portion of the stirring rods 33, 34, 35 and 36 is bent (bent) at a predetermined angle (?) So that the palm fiber 10a being stirred can not be lifted above the upper surface water 2a An underwater space portion 52 is formed between the shaft rod 21 and the fixing rods 25, 27, 29 and 31 without the stirring rods 33, 34, 35 and 36, Even if some of the palm fibers 10a which have separated from the shell 10a are moved by the shaft rod 21, the palm fibers 10a fall into the treated water 2 by the underwater space portion 52, ).

In the present invention, the stirring direction of the stirrer 11 is a counterclockwise direction as shown in FIG. 2, and the stirrer bars 33, 34, 35 and 36, which are bent in a direction opposite to the rotating direction of the stirrer 11 The palm fiber 10a is agitated while moving along the surface of the perforated network 13 in the direction of the discharge part 5 and the flow direction of the treatment water 2 is opposite to the direction in which the palm fiber 10a moves.

" 형상의 호형으로 구성되며, 소정 직경의 원형이나 타원형 구멍(51)이 소정 간격으로 형성되어 팜 파이버(10)에 혼재된 이물질이나 팜 파이버(10a)의 부스러기 등이 상기 구멍(51)을 통과하여 처리조(3)의 바닥(3a)으로 안착하거나 부유하게 되며, 바닥(3a) 하부에 설치되는 밸브(8)를 개방시키면 퇴수관(9)이 열리면 일부의 처리수(2)와 함께 배출되면서 처리조(3)가 청소되며, 청소가 끝나 밸브(8)를 폐쇄시키면 처리수(2)의 배출이나 소모가 방지된다.The perforated network 13 is provided with a "

Circular shape or elliptical holes 51 having a predetermined diameter are formed at predetermined intervals so that foreign matter mixed in the palm fiber 10 or debris of the palm fiber 10a passes through the hole 51 And when the valve 8 installed at the bottom of the bottom 3a is opened, the water is discharged together with a part of the treated water 2 when the water discharge pipe 9 is opened, The treatment tank 3 is cleaned. When the cleaning is completed and the valve 8 is closed, the discharge and consumption of the treatment water 2 are prevented.

Since the perforated network 13 is fixed and the stirring rods 33, 34, 35, and 36 are rotated, the palm fibers 10a are agitated by being separated from each other by a distance of, for example, 3 to 50 mm And is configured to be movable in the traveling direction.

In the present invention, when the bottom 3a of the treatment tank 3 is made to have an inclined structure which is lowered in the direction of the water discharge pipe 9, foreign matter, floating matters and the like easily gather in the water discharge pipe 9, Foreign matter, floating matters or sediments can be easily discharged and treated by a method of opening and closing.

The diameter (diameter) of the hole 51 is preferably such that the palm fiber 10a in the web state does not fall down or strike down, such as 5 to 10 mm.

A portion where the perforated network 13 is connected to the perforated network 13 is formed with a rising protrusion 50 so that the stirring effect of the palm fiber 10a is increased and movement in the reverse direction is prevented. That is, when the palm fiber 10a is pushed in the direction of the discharge portion 5 by the rotation of the stirring rods 33, 34, 35 and 36 and rides over the rising protrusion 50, The agitation and the transfer are performed again by the agitator 11 and most of the residual fertilizer components are dissolved and removed in the treated water 2 while the agitator 11 and the perforated network 13) increases, the dissolution and removal efficiency of the residual fertilizer component increases.

By maintaining the height h2 of the rising protrusion 50 at 2/3 to 1/2 of the height h1 of the treated water 2, the perforation 13 and the stirring rods 33, 34, 35 and 36 The agitating palm fiber 10a is agitated through the inward space 2b of the predetermined height h3 formed on the upper part of the rising protrusion 50, And the agitation and movement of the palm fiber 10a are carried out in water.

It is preferable that the height h3 of the underwater space 2b is such that the palm fiber 10a moving to the rear end does not protrude above the upper water surface 2a and the upper part of the palm fiber 10a is, , The rotating part of the agitator 11 hardly affects the moving load of the palm fiber 10a.

The perforated network 13 is separated from the bottom 3a of the treatment tank 3 so that debris or debris of the palm fiber 10a floats on the bottom of the perforated network 13 or is collected on the floor 3a, So that it can be discharged through the through hole.

The power transmitting means of the stirrer 11 of the present invention is as follows.

As shown in FIGS. 3 and 4, chain gears 37, 38, 39, 40 and 41 are fixed to one end of the shaft rod 21, The chain gear 39 and the chain gear 40 are connected to a chain 43 and a chain gear 45 fixed to the output shaft of the speed reducer 44 and the chain gear 41 The chain gear 47 connected to the chain 46 and fixed to the input shaft of the speed reducer 44 and the chain gear 48 fixed to the rotary shaft of the motor 12 are connected to the chain 49, The rotating force is reduced and then transmitted to the plurality of stirrers 11, so that the stirrer 11 rotates in the set speed and the rotating direction (counterclockwise in FIG. 2).

In order to maximize the contact with the treatment water 2, the palm fruit bundle (EFB) to be pretreated in the present invention is crushed and compressed to maximize the contact with the treated water 2, and then the treatment vessel 3 is prepared in a palm fiber state in which the fiber is loosened, And the remaining fertilizer components such as potassium (K) and chloride (Cl) are stirred and moved in the direction of the discharge section 5 located at the end of the treatment tank 3 by the agitator 11 Is mostly dissolved in the treated water (2) and removed.

In the present invention, the treated water (2) can be used as a river, a reservoir and ground water, a constant water, an industrial water, an agricultural water and the like. Since the water and the reservoir water are high in solubility, And the direction of flow of the treatment water 2 are opposite to each other, the palm fiber 10b finally discharged is cleanly cleaned and most of the remaining fertilizer components are dissolved and removed.

The water temperature of the treated water 2 is maintained at room temperature or higher and the rotation speed of the stirrer 11 is controlled so that the time during which the palm fiber 10a is immersed in the treated water 2 is maintained for 60 to 90 minutes, K) and chlorides (Cl) are more efficiently removed.

Table 1 below shows a comparison of removal rates of the palm fiber 10 before and after pretreatment. In the case of potassium (K), the residual amount before pretreatment was 1.15 to 1.25%, but the residual amount after pretreatment using the present invention was 0.2% It can be seen that about 85 ~ 90% of potassium (K) was removed. In the case of the chloride (CI), the residual amount before the pretreatment was 0.25 to 0.35%. However, since the residual amount after the pretreatment using the present invention was 0.05% or less, it was found that the chloride (CI) The superiority of the effect can be known.

Residue before pretreatment Residue after pretreatment Removal rate Potassium (K),% 1.15 ~ 1.25 <0.2 > 85% Chloride (CI),% 0.25-0.35 &Lt; 0.05 > 85%

The pretreatment apparatus 1 of the present invention is configured such that when the palm fiber 10 is inserted, the agitator 11 advances and agitates, and since a large amount of the treated water 2 is infiltrated, The moisture content of the palm fiber 10b reaches 80%.

Therefore, in the present invention, if the dehydrating and / or compressing device (not shown) is used to dewater and / or compress the water content of the palm fiber 10b to 50% or less, the pellet can be manufactured using a general pelletizing device, The palm fiber 10b discharged from the treatment tank 3 is in a state in which most of residual fertilizer components are removed by the pretreatment, so that it can be manufactured as high quality fuel pellets.

That is, the present invention further includes a pellet by-product or a palm fiber having a residual amount of potassium (K) of 0.2% or less and a residual amount of chloride (CI) of 0.05% or less by the pretreatment method of the present invention or a high quality pellet obtained by pelletizing.

Conventional pellets made from palm byproducts have not been removed from fertilizer components such as potassium (K) and chloride (Cl), so that excessive chloride (Cl) in residual fertilizer components during combustion when used as boiler fuel, (K) and a chloride (K) are added to the palm fiber (10b) of the present invention. However, since the excessive amount of potassium (K) causes a decrease in the melting temperature of the ash, Cl) or the like are almost or mostly removed, so that the above-mentioned conventional problems are solved at once.

The present invention reduces the amount of components of potassium (K) and chloride (Cl) contained in a large amount of palm kernel flour (EFB) by 85 to 90%, so that it can be used as fuel pellets for industrial boilers, EFB) as a useful resource, it is used as a main material for the production of stable and economical biomass fuel pellets in the situation of decaying and decaying in the natural state, Possible additional job creation and profit model.

It goes without saying that the present invention can omit, replace or add some steps of the manufacturing process for improving the quality (improvement) of the pellet as a fuel pellet by pretreating the palm fruit bundle (EFB).

In the present invention, the stirring rods 33, 34, 35, and 36 constituting the agitator 11 can increase or decrease the quantity (30 to 100) according to the throughput and immersion time of the palm fiber 10a, The treated water (2) can be further improved in solubility by heating to 50 to 70 캜 by utilizing waste heat.

The palm fiber 10a has a very high water content and is immersed in the treated water 2 but is agitated and moved by the stirring rods 33, 34, 35 and 36 in the treated water 2 The stirring load and the moving load are greatly reduced.

In the dissolution process, potassium (K) and chloride (Cl) components dissolve in a large amount, but other ionic substances are also dissolved, and the chemical contained in the fertilizer component is largely removed. And the chlorine (Cl) dissolved therein are drained through the drain pipe (7), so that contamination of the treated water (2) is prevented.

Since the chemical dissolved in the treated water (2) is derived from the residual fertilizer component, the treated water (2) in which the chemical dissolved in the treated water (2) is dissolved can be easily treated by using a large- The problem is not triggered.

In the present invention, the treatment tank 3 is at least one or more, and a plurality of treatment tanks 3 may be combined according to the circumstances.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible. Therefore, the scope of the present invention should not be construed as being limited to the embodiments described, but should be determined by equivalents to the appended claims, as well as the appended claims.

(1) - pretreatment device (2) - treated water
(3) - Treatment tank (3a) - Floor
(4) -Inlet section (5) -Inlet section
(6) - water pipe (7) - water pipe
(8) - opening and closing valve (9) - drainage pipe
(10) (10a) (10b) - Palm fiber (11) - Agitator
(12) - motor (13) - perforated network (or wire)
(14) - Gypsy boat publication (15) - Water supply source
(16) (17) - opening and closing valve (19) (20) - disc
(21) -axis (22) (33) -axis bracket
(25) (26) (27) (28) (29) (30) (31) (32)
(33) (34) (35) (36) - Stirring rod (37) (38) (39) (40)
(42) (43) (46) (49) - Chain (44) - Reducer
(50) -projection (51) -hole
(52) -water space (h1) (h2) (h3) -height
(L) - spacing (?) - angle

Claims (5)

a) obtaining a palm fiber by pulverizing and squeezing the palm fruit by-product (EFB), which is a by-product of palm wood;
b) supplying a predetermined amount of palm fiber to a treatment tank in which an agitator is installed and treated water flows;
c) Preliminarily moving the palm fiber and treated water in opposite directions in the treatment tank, while adjusting the amount of palm fiber, the amount of treated water and the temperature of the treated water;
d) discharging the pretreated palm fibers out of the treatment bath;
e) compressing the palm fiber discharged after the pretreatment with a compacting machine to lower the water content to 50% or less;
By weight of a by-product. The method of claim 1,
Characterized in that the immersion time of the palm fiber in the treated water is maintained for 60 to 90 minutes. A pellet obtained by pelletizing a palm by-product having a residual amount of potassium (K) of 0.2% or less and a residual amount of chloride (CI) of 0.05% or less through a pretreatment process according to claim 1 or 2. A treatment tank in which the treated water is desalinated;
An input unit provided at the end of the treatment tank and into which the pretreatment palm fiber is input;
A discharge unit provided at a downstream end of the treatment tank and discharging the pretreated palm fiber;
A water supply pipe provided at a downstream end of the treatment tank to supply treatment water;
A drain pipe installed at the end of the treatment tank and discharging treated water flowing to the treatment tank front end;
At least one opening / closing valve and a water discharge pipe installed at the bottom of the treatment tank;
A plurality of agitators provided in the treatment tank and transferring the palm fiber to the treatment tank after stirring the treated water in the treated water;
A perforated network surrounding the bottom of the stirrer;
A motor and a power transmission means for rotating the stirrer;
And a pretreatment device for the by-product of the palm for manufacturing high-quality pellets. The method of claim 4,
In the agitator,
A pair of left and right discs;
A shaft rod fixed to the center of the disk;
A shaft bracket for axially supporting both side portions of the shaft rod;
A plurality of fixed rods fixed between the disks;
A plurality of stirring rods fixed at a predetermined interval and in a plurality of rows in a direction orthogonal to the fixed rods and bent at an intermediate portion thereof;
And a pretreatment device for the by-product of the palm for manufacturing high-quality pellets.

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