KR101964623B1 - Apparatus for continuous extraction of mineral from biomass - Google Patents

Abstract

The present invention relates to a continuous biomass mineral component extraction apparatus. The present invention relates to a continuous biomass mineral component extraction apparatus, which comprises: a raw material inlet port through which biomass is introduced; a catalytic water inlet port through which catalytic water is introduced; a reactor main body through which biomass and catalytic water are introduced to extract mineral components of the biomass; a mixing screw rotationally disposed inside the reactor main body and stirring the biomass and the catalytic water to be uniformly mixed; a biomass discharge port for discharging the biomass from which the mineral components are removed; and a catalytic water discharge port. The mixing screw comprises: a rotating shaft rotating by the power of a motor; a screw shaft having a plurality of pipe-shaped angle frames connected to be spaced apart at regular intervals about the rotating shaft, and having a structure arranged in an annular shape; a variable rigid body in a form of a net surrounding an outer circumferential surface of the screw shaft; and a screw blade installed in a spiral form along the outer circumferential surface of the screw shaft; and a bucket fixed to a rear end of the angle frame.

Description

Apparatus for continuous extraction of mineral from biomass}

The present invention relates to an apparatus for extracting the mineral component in the biomass, and more particularly, it is disposed rotatably inside the reactor body and the reactor body in which the biomass and the catalyst water is introduced to extract the mineral component of the biomass, The present invention relates to an apparatus for extracting mineral components in biomass including a mixing screw for stirring to uniformly mix the biomass and the catalyst water.

Energy sources that generate the most carbon dioxide and are inadequate for global warming are energy sources based on fossil fuels. Therefore, among the issues currently being issued globally as energy sources, the use and dissemination of new and renewable energy is possible, which reduces carbon dioxide emissions compared to conventional fossil fuels such as petroleum and coal, which can cope with global warming and climate change. Because it is an energy source.

With the depletion of fossil fuels and the reduction of greenhouse gases in response to the international agreement on climate change, the total amount of power generated by power generation companies (duties of supply mandates) with power generation facilities (excluding renewable energy facilities) of more than 500MW. Renewable Portfolio Standard (RPS) was introduced, which mandates the supply of more than a certain ratio of renewable energy by using renewable energy. Reasons for non-compliance within 150% of the average transaction price of the supply certificate for such non-compliance The government has enacted a law to impose penalties, taking into account the number of non-compliances.

Accordingly, in order to supply and receive renewable energy, the certificate of proof that the power generation company produced and supplied electricity by using renewable energy equipment is required to supply the mandatory supply with the renewable energy supply certificate. Renewable Energy Certificate (REC) is given to multiply the weight of renewable energy based on MWh supplied from the equipment subject to the supply certificate.The weight of each renewable energy is based on environment, technology development and It is reviewed every three years by the government in consideration of the effects on industrial revitalization, power generation costs, potential savings, and the effect on greenhouse gas emission reduction.

Large-scale coal-fired power plants have integrated integrated gasification combined cycle (IGCC) and ultra-supercritical pressure (IGCC) as a linkage and improvement plan for power plants that reduce CO2 emissions from coal to achieve the share of renewable energy supply. Technology, Clean Coal Technology (CCT) such as CO ₂ capture and storage technology, and bio-mass mixing, etc., but there are many areas that need to be overcome to solve the fundamental problem. It is true.

In particular, in the case of biomass mixing, there is a problem in that power generation efficiency is lowered as the biomass of a relatively low calorific value is burned compared to coal.

The combustion characteristics of biomass and coal input for intermixing are different, causing multi-stage combustion in the existing power plant designed with coal as a target material, causing problems in the operation of the facility.

In addition, there is a problem in that clinker or fouling occurs by an inorganic component including a metal component included in the biomass. In order to solve this problem, a technique for applying a fuel in which oil-based biomass is mixed with coal has been developed. In the case of a fuel that is simply a mixture of coal and oil-based biomass, the surface of the coal is generally coated with oil or some oil is impregnated into the pores. However, due to the low surface tension of the oil itself and the lack of cohesion between oil-based biomass and coal surface, coal and biomass each retain their existing combustion characteristics, resulting in different combustion characteristics. Therefore, when applied to the power plant, oxygen is preferentially consumed excessively due to the low temperature combustion pattern of oil in the front of the burner, which eventually inhibits the combustion of coal, increasing the amount of unburned carbon and decreasing power generation efficiency. .

Representative agglomeration of ash in biomass is mainly found in slag, clinker, fouling and fluidized bed combustor which are mainly generated in the radiant and convective transfer surfaces of pulverized coal combustion furnaces, respectively. Agglomeration and the like.

It is expected to wear due to the high temperature chlorine corrosion of the power plant tube, the change caused by the flow rate caused by the coke tube clogging phenomenon, the tube wear caused by the flow yarn of the fluidized bed combustor, and the mechanical wear of the chute blower. When potassium and chlorine compounds form KCl through chemical bonding during combustion, KCl (melting temperature 776 ℃) is known to be highly viscous and accelerates corrosion by chlorine reaction.

The occurrence of these phenomena in the furnace is not only a major factor in reducing the efficiency of the process, but ultimately, the worsening of these processes leads to the suspension of operations, which leads to enormous economic losses. Agglomeration of ash is generally affected by ash composition, temperature, particle size, gas atmosphere, operating conditions, etc. Particularly, when a part of the ash is melted at a high temperature, this phenomenon is accelerated.

Looking at a number of known documents for addressing the above problems are as follows.

In prior art document 1, plant biomass is used to atomize a plant, soak the atomized plant in water of normal pressure, dehydrate the plant in water of normal pressure, and use the dehydrated plant as a fuel, and use the solution obtained by dehydration as a fertilizer. A method of reforming a fuel is disclosed.

In Priority Document 2, after extracting the water-soluble hemicellulose from the raw material including the water-soluble hemicellulose to the aqueous medium at 80 or more and 140 or less, under the conditions of pH value 2-7, the extract is concentrated 1.5 times or more, and then A method for producing a water-soluble hemicellulose is disclosed, which comprises removing an insoluble substance.

Prior art document 3, after washing with bran to remove the water-soluble substance, and treated with an aqueous alkali solution of 0.1 ~ 0.4, eluting the fraction mainly consisting of hemicellulose in an alkaline aqueous solution, and purified out of the limit and using a membrane and ion exchange resin in order. An extraction and purification method for hemicellulose is disclosed.

Prior Art 4 discloses the steps of (1) removing protein from chaff and washing the chaff in preparing water-soluble and insoluble hemicellulose from rice husk; (2) extracting chaff with a sodium hydroxide solution at a concentration of 0.5-1 M and filtering; (3) recovering hemicellulose by precipitation by adding phosphoric acid to the alkaline extraction solution obtained in step (2) to lower the pH of the solution; (4) further washing with phosphate or oxalic acid for the precipitate obtained in step (3) and then decolorizing through oxalate-potassium permanganate treatment; (5) It is possible to selectively separate the water-soluble and insoluble hemicellulose by adjusting the pH of the solution from the decolorized hemicellulose fraction obtained in the above step. Then recovering; (6) From the rice husks, which consists of a step of obtaining a powder by naturally drying or spray-drying the water-soluble and insoluble hemicellulose obtained through such a series of continuous processes, and then milling and passing through a sieve of an appropriate size. A method for preparing water-soluble and insoluble hemicellulose is disclosed.

Prior art 5 (i) removing the starch and protein from the corn husk; (ii) extracting the corn husk from which starch and protein have been removed with an alkaline solution and filtering with a filter cloth; (iii) reacting the alkaline extract obtained in step (ii) by treating cellulase and cellobiase; (iv) treating the enzyme reaction solution obtained in step (iii) with an adsorbent and obtaining a filtrate through membrane filtration; (v) Disclosed is a method for producing a water-soluble dietary fiber comprising the step of purifying the filtrate.

In prior document 6, a) extracting hemicellulose from the biomass; b) precipitating and separating hemicellulose from the hemicellulose extract; And c) injecting the separated hemicellulose into a papermaking process. Disclosed is a paper manufacturing method in which the drying strength is improved.

In the prior document 7, the sludge dewatering method by the two-stage concentrated dehydration is a first step of introducing the wastewater in which the sludge is mixed into the rotor through the inner space of the main shaft; A second step of rotating the screw shaft positioned in the rotor with a screw to concentrate the sludge and water in the first step by centrifugal force from the wastewater introduced in the first step; A third step of discharging the water separated in the second step through the inner space of the screw shaft and discharging the sludge into the space between the rotor and the wedge wire screen by the action of the concentrated screw; A fourth step of compressing and dehydrating by the rotor together with the wedge wire screen for rotating the sludge discharged in the third step; A fifth step in which the sludge cake compressed and dewatered in the fourth step is discharged through the slide gate valve, and the water discharged to the wedge wire screen is discharged to the drain pipe; Disclosed is a dewatering method and apparatus according to the present invention.

However, in the conventional arts known to date, physicochemical treatment is applied to remove lignin from biomass and extract hemicellulose, which is mainly composed of glucose and xylose, but chemicals such as acid or alkali. In the case of using, the cost of chemicals increases and the process of recovering the used chemicals must be accompanied, which leads to a complicated process. In order to apply the separated components to the target raw materials, high purity and side reactions must be removed as much as possible. This was often accompanied. In addition, since the treatment process proceeds at a high temperature of more than 100 ℃ there was a disadvantage that takes a lot of energy costs.

Therefore, in order to promote the utilization and dissemination of renewable energy and to secure supply stability of biomass fuel, biomass while maintaining the existing carbon-derived biomass components at the lowest temperature to fundamentally eliminate process problems caused by ash. There is an urgent need for the development of a fuel production system for boilers that selectively removes and removes low ash content fuel by selectively removing only ash-induced components in the boiler and uses dewatering and washing processes.

Japanese Laid-Open Patent Publication No. 2016-125030 Japanese Laid-Open Patent Publication No. 11-240902 Japanese Patent No. 2688509 Korea Patent Registration No. 10-0476239 Korean Patent Publication No. 10-0413384 Korean Patent Publication No. 10-1457470 Korean Patent Publication No. 10-0872358

The present invention has been made in order to solve the above problems, from the herbaceous, wood-based, algae biomass, such as fouling, slagging, high temperature corrosion, clinker generation during boiler operation, reactor wall, heat exchanger, etc. The present invention provides a continuous device for removing mineral components in biomass that adversely affects the heat transfer surface.

To this end, the continuous biomass mineral component extraction apparatus according to the present invention is a biomass inlet through which the biomass is introduced; A catalyst water inlet port through which catalyst water is introduced; A reactor body through which biomass and catalyst water are introduced to extract mineral components of the biomass; A mixing screw rotatably disposed inside the reactor body and stirring the biomass and the catalyst water to be uniformly mixed; Biomass outlets from which mineral components have been removed; And a catalyst water outlet.

The mixing screw is a rotating shaft to rotate by the power of the motor; A plurality of pipe-shaped angle frame is connected at regular intervals around the rotation axis, the screw shaft of the annular arrangement; A variable rigid body in the form of a net surrounding the outer circumferential surface of the screw shaft; Screw blades are installed in a spiral form along the outer circumferential surface of the screw shaft; A bucket fixed to the rear end of the angle frame; It includes.

A plurality of punching plates in the form of perforated plates may be formed between the screw blades.

The punching plate may be formed to be inclined at a predetermined angle between the screw blades.

The reactor body may be in the form of a tube or a box with an open top.

The reactor body lower portion may further include an impurity separation device.

The biomass outlet may be a perforated vibration plate.

The apparatus may further include a water injection device for removing the solid component attached to the perforated vibration plate.

The mass ratio of the catalyst water and the raw material supplied to the reaction base may be 1: 1 to 10: 1.

The pH of the catalyst water may further include a pH adjusting tank for adjusting the pH to 2 to 4.

The catalyst water discharged from the catalyst water outlet may be recovered to the catalyst water inlet via a membrane filter or an ion exchange resin.

The screw rear end may further include a roller for supporting the mixing screw.

According to the biomass mineral component extraction apparatus of the present invention, the mineral components, etc. can be effectively and easily extracted and extracted from herbal or wood based biomass through low temperature reaction conditions of the catalyst, so as to burn biomass in the boiler and / or mixed material. Raw materials can be selectively obtained.

 Acid treatment at low temperature contributes to the simplification and cost reduction of the wastewater treatment process, and has the effect of excluding the leaching of carbonaceous components such as cellulose, hemicellulose, and lignin as much as possible.

Clinker expected from ash due to biomass after combustion and gasification in fluidized bed and undifferentiated combustion furnace and gasifier by using cellulose, hemicellulose, and lignin of biomass without minerals. There is an effect that can fundamentally exclude the problems of fouling and high temperature corrosion.

By removing the nitrogen component in the fuel component has an effect of reducing the fuel NOx generated during combustion.

1 is a perspective view of a screw shaft according to the present invention.
2 is a perspective view of a mixing screw according to the present invention.
3 is a continuous biomass mineral component extraction apparatus according to an embodiment of the present invention.
Figure 4 is a continuous biomass mineral component extraction apparatus according to another embodiment of the present invention.
Figure 5 shows the BTW with the number of catalysts added per unit feedstock according to an embodiment of the present invention.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention. Therefore, the exemplary embodiments described herein are merely exemplary embodiments of the present invention, and do not represent all of the technical ideas of the present disclosure, and thus, various equivalents and modifications may be substituted for them at the time of the present application. It should be understood that it can.

Continuous biomass mineral component extraction apparatus according to the present invention is a raw material inlet device that the biomass is introduced; A catalyst water inlet device through which catalyst water is introduced; A reactor body through which biomass and catalyst water are introduced to extract mineral components of the biomass; A mixing screw rotatably disposed inside the reactor body and stirring the biomass and the catalyst water to be uniformly mixed; Biomass outlets from which mineral components have been removed; And a catalyst water outlet.

The biomass may be any one or two or more of a first generation biomass, a second generation biomass, and a third generation biomass.

As the biomass raw material, wood based and herbal based may be used. Woods include wood blocks, wood chips, logs, tree branches, wood chips, leaves, woodcuts, sawdust, lignin, xylan, lignocellulose, palm trees, palm kernel shell (PKS), palm fibres, and empty fruit bunches (EFB). , FFB (fresh fruit bunches), palm leaves, palm mill residues, etc. may be used. Herbs include corn stalks, rice straw, sorghum, sugar cane, grains (rice, sorghum, coffee, etc.), husks, beets, vargas, millet, artichoke, molasses, flax, hemp, horses, cotton stalks, tobacco stems, Biomass, such as corn, potatoes, cassava, wheat, barley, lymil, other starch-based processed residues, fruit avocados, jatropha, and processed residues thereof, may be used. Preferably it may be one or more of silver grass, EFB (Empty Fruit Bunches), kenaf, corn bran, rice husk, bamboo.

In addition, algae may be used as a biomass feedstock. Green algae, Cyanobacteria, Diatoms, Diatoms, Red algae, Chlorella, Spirulina, Dunaliella, Porphyridium, Phaeodactylum may be used as the algae.

The raw material inlet device is a grinding unit for forming the biomass into a raw material of a predetermined size; A hopper for storing the raw material; It may further include a raw material supply feeder for quantitatively supplying the raw material stored in the hopper to the rear end.

The predetermined size may be 500 mm or less. Preferably it may be less than 10μm to 300mm. More preferably, it may be less than 20mm to 50mm.

If it is out of the particle size, the grinding cost is excessively consumed, or the removal efficiency of the ash-induced components may be lowered.

The grinding unit may perform crushing and / or grinding. The grinding unit may use any one or more of physical properties such as compression, impact, friction, shear, bending, and can be used as long as it can achieve the purpose of reducing the size of the biomass such as cutting and widening the surface area.

The crushing unit includes a jaw crusher, a gyreatory crusher, a roll crusher, an edge runner, a hammer crusher, a ball mill, a jet mill mill, a disk crusher may be any one.

The raw material supply feeder is not particularly limited as long as it is a device capable of supplying the raw material quantitatively at the rear end. Preferably there is a screw feeder, a lock hopper.

The mineral component is physically and chemically attached to the surface of the reactor wall, the heat exchanger, and the exhaust gas treatment equipment at the rear end of the reaction among the inorganic components included in the biomass used in the combustion reaction, such as fouling, slagging, corrosion, and clinker formation. It means the ash-induced components that cause.

 The mineral component may be an alkali, an alkaline earth metal, or a halogen group element. Preferably sodium, potassium, chlorine.

The catalyst water may be added in a heated form by the heating apparatus. The heating device may be a microwave.

The temperature of the catalyst water may be 40 ℃ to 60 ℃.

If the temperature condition is out of the mineral component is not sufficiently separated in the raw material, the temperature condition may be changed according to the raw material.

The catalyst water inlet device may be connected to the pH adjustment tank. A catalyst reservoir for supplying a catalyst to the pH adjusting tank may be formed, and the catalyst may be supplied to the pH adjusting tank. Treatment water supply unit for supplying additional water to the pH adjustment tank may be formed. A pH adjusting tank drain portion 470 for discharging the excess catalyst water may be formed.

The pH adjusting tank may be formed with a stirrer for the internal catalyst mixing characteristics. The stirrer may be rotated by stirring at 100 to 500rpm, when the capacity of the pH adjusting tank is 100L, preferably 350rpm.

The pH adjustment tank may include a temperature increaser for temperature control. If the temperature increaser can control the temperature of the reaction body is obvious that the form of the temperature increaser is not limited. The temperature increaser may have a temperature increase rate of 1 to 5 ℃ / min. If the above condition is exceeded, a temperature increase effect cannot be obtained.

The pH adjustment tank may include a thermal insulation. The heat insulating material is not limited to the material as long as it can have a heat insulating effect. The insulation may be any one or two or more of glass wool, rubber foam, PE foam, Perlite, urethane. Preferably, it may be a Hiplex of 0.05 [g / cm ³ ] and 0.035 [W / m · k]. More preferably, it may be a Hiplex having 0.05 [g / cm ³ ], 0.035 [W / m · k], mass ratio absorption of 3% or less, and 5 to 10 [ng / m ² · s · Pa]. If it is out of the above conditions, a thermal insulation effect cannot be obtained.

The reactor body is a box or tube-shaped structure in which a predetermined internal space for accommodating the mixing screw is formed. The reactor body is illustrated and described as being installed horizontally with the bottom surface, but is not limited thereto, and the driving unit may be provided to be inclined toward the lower side.

The reactor body may be filled with the catalyst water therein.

The inner surface of the reactor body may be formed irregularities. It is apparent that the unevenness is not limited to the shape and size as long as it can improve the mixing of the biomass and the catalyst water.

The reactor body may include a reactor thermal insulation material to maintain the temperature of the catalyst water 40 to 60 degrees. The heat insulating material is not limited to the material as long as it can have a heat insulating effect.

The reactor insulation may be any one or two or more of glass wool, rubber foam, PE foam, Perlite, urethane. Preferably, it may be a Hiplex of 0.05 [g / cm ³ ] and 0.035 [W / m · k]. More preferably, it may be a Hiplex having 0.05 [g / cm ³ ], 0.035 [W / m · k], mass ratio absorption of 3% or less, and 5 to 10 [ng / m ² · s · Pa]. If it is out of the above conditions, a thermal insulation effect cannot be obtained.

The reaction base may include a temperature increaser (not shown) for temperature control. If the temperature increaser can control the temperature of the reaction base is obvious that the form is not limited. The temperature increaser may have a temperature increase rate of 1 to 5 ℃ / min.

If the above condition is exceeded, a temperature increase effect cannot be obtained.

A mixing screw is disposed inside the reactor body.

The mixing screw includes a rotating shaft, a screw shaft, a variable rigid body in the form of a mesh, a screw blade, and a bucket.

The time for which the biomass stays in the reactor body may be 10 minutes to 10 hours. Preferably the residence time may be 20 minutes to 2 hours, more preferably the residence time may be 30 minutes to 1 hour. Outside the residence time, the mineral components in the biomass are not sufficiently separated.

The residence time condition can be varied depending on the mixing screw size.

Hereinafter, with reference to the accompanying drawings will be described in detail the continuous biomass mineral component extraction apparatus according to the present invention.

1 is a perspective view of a screw shaft according to the present invention.

2 is a perspective view of a mixing screw according to the present invention.

Referring to FIG. 1, the screw shaft 23 has a structure in which a plurality of pipe-shaped angle frames 22 are annularly disposed about the rotation shaft 21 and connected to the rotation shaft 21 at regular intervals. The angle frame 22 is formed longer than the rotation shaft 21.

Referring to FIG. 2, the outer surface of the screw shaft 23 is surrounded by a mesh-shaped variable rigid body 24. In addition, the screw blades 25 are spirally connected along the outer circumferential surface of the screw shaft 23 and the variable rigid body 24. The variable rigid body 24 and the screw blades 25 are formed to the point where the rotating shaft 21 ends.

As the rotating shaft 21 and the angle frame 22 are separated by the structure, the screw shaft 23 may have an inner space formed therein to fill the catalyst water, and the variable rigid body formed on the outer surface of the screw shaft 23. By 24, the biomass raw material cannot penetrate into the space inside the screw shaft 23.

The variable rigid body 24 may be formed in a mesh form to exclude the injected biomass from contacting the rotating shaft 21 to interfere with driving of the mixing screw 20.

It is obvious that the hole area of the mesh is not limited to that area as long as it can exclude passage of the injected biomass. Preferably, the area of the mesh may be 0 or more and 10 mm ² or less. More preferably, it may be 0 or more and 5 mm ² or less.

The screw blade 25 serves to move the injected biomass from the raw material inlet to the outlet in the device.

The screw vanes 25 may have a predetermined clearance with the device, the interval of which is the biomass falls into the gap between the screw vanes 25 and the devices 100, 200 as the screw vanes 25 rotate. It may be formed under conditions that do not exit.

The rotation speed of the screw blade 25 is not limited as long as it is a condition capable of completing the extraction process of mineral components of the biomass and the catalyst water.

Preferably, the screw vanes 25 may be disposed in the entire part of the device, and it is obvious that the arrangement is not limited to the arrangement even if partially disposed if the reaction conditions are completed.

The angle of formation of the screw blades 25 may be inclined so as to transfer the biomass from the raw material inlet to the outlet. The inclination angle may be greater than or equal to 0 degrees and less than 90 degrees as an angle of formation of the screw vanes 25 forming the height direction of the device. Outside of the angular conditions, smooth biomass transfer may not occur.

A plurality of punching plates 26 in the form of perforated plates are formed between the screw blades 25.

The punching plate 26 serves to promote the reaction with the catalyst water by introducing the biomass into the apparatus (100, 200). The punching plate 26 includes the biomass with the screw blade 25 to exclude the low specific gravity of the biomass floating on the catalyst water to limit the contact time of the solid-state reaction between the biomass and the catalyst water. Rotates to feed into the catalyst water.

The punching plate 26 is not limited to its shape as long as it promotes a contact reaction between the biomass and the catalyst water. The punching plate 26 may be perforated or wrinkled in surface.

The punching plate 26 may be formed to be inclined at a predetermined angle between the screw blades 25. The angle may be greater than or equal to 0 degrees and less than 90 degrees with respect to the horizontal line, preferably greater than or equal to 2 degrees and less than or equal to 30 degrees, and more preferably greater than or equal to 3 degrees and less than 15 degrees. Outside the angle, smooth mixing does not occur.

The number of the punching plate 26 formed between the screw blades 25 is not limited to the number if the biomass can be mixed with the catalyst water smoothly. Preferably it may be formed between two or more than 12 of the screw blades of a circular shape, preferably may be formed of more than three or less than eight.

A bucket 27 is fixedly formed at the rear end of each angle frame 22.

The bucket 27 functions to inject the biomass reaction is completed from the device (100, 200) to the biomass outlet (13). The bucket 27 is configured in a porous form in order to maximally separate the catalyst water collected from the biomass when the biomass is collected. It is apparent that the hole area of the porous body is not limited to the area as long as it can exclude passage of the injected biomass. Preferably, the area of the mesh may be 0 or more and 10 mm ² or less. More preferably, it may be 0 or more and 5 mm ² or less.

A fluid injection port (not shown) may be formed at one side of the angle frame 22 in which the bucket 27 is formed so that the biomass collected in the bucket 27 is smoothly discharged to the outlet. The fluid injection port is attached to the bucket 27 to remove the biomass that is not discharged.

The fluid injection port may be a water injection device.

It is apparent that the number of the buckets 27 formed on the angle frame 22 is not limited to the number if the biomass can be smoothly discharged. Preferably, the screw shaft 23 may be formed in two or more than 12 or less, preferably three or more or less than eight.

Referring to FIG. 3, the mixing screw 20 is accommodated to be rotatable inside the reactor body 10. The reactor body 10 has a box shape with an open top surface.

The biomass inlet 11 into which the biomass is introduced and the catalyst water inlet 12 into which the catalyst water is introduced are formed in the reactor body 10. The raw material and the catalyst water are introduced into the reactor body 10, and the mixing screw 20 is rotated while the rotating shaft 21 is rotated by the driving of the motor.

A biomass outlet 13 is formed at the rear end of the reactor body 10. The outlet is a perforated vibrating plate, the perforated vibrating plate is separated into a solid component and a liquid component while the sludge is evenly moved downward with a vibrating force on a perforated plate in which a plurality of through holes are uniformly formed.

It is installed inclined 15 to 30 degrees in the rear end of the reactor body 10, the separated solid component is supplied as a raw material for the production of biomass fuel, the liquid component is transferred to the catalyst water outlet (14).

A water injector (not shown) may be further included to remove the solid component attached to the perforated vibrating plate.

The lower part of the reactor body may further include an impurity separator 15 capable of separating soil, sand, and the like. The impurity separator 15 may separate impurities such as soil and sand introduced together with the biomass that has sunk in the bottom of the reactor body 10.

The reactor body may further include a roller for smoothing the rotation of the mixing screw.

Referring to FIG. 4, the reactor body 30 is in the form of a tube. The mixing screw 20 of FIG. 2 is accommodated in the tubular reactor body 30.

If the reactor body 30 is formed in the form of a tube, the catalyst water may be filled in the reactor body so that the contact time and reaction efficiency of the biomass introduced into the biomass inlet may be improved.

The roller may be formed in contact with a rear end of the mixing screw on the other side of the rotating shaft which is connected to one side of the motor to rotate by power. If the roller can smoothly rotate the mixing screw is not limited to the number or shape of installation.

Figure 5 shows the BTW with the number of catalysts added per unit feedstock according to an embodiment of the present invention.

The amount of catalyst added per unit feedstock depends on the type of biomass, and may be defined as BTW (Biomass to Water, kg / kg). Preferably, for each biomass, silver grass is 0.05 to 0.2, preferably 0.11 to 0.13, more preferably 0.125, kenaf is 0.05 to 0.2, preferably 0.14 to 0.18, more preferably 0.1667, corn cob 0.05 to 0.2, preferably 0.11 to 0.13, more preferably 0.125, Napier glass is 0.05 to 0.2, preferably 0.14 to 0.18, more preferably 0.1667, EFB is 0.1 to 0.4, preferably 0.15 to 0.25 , More preferably 0.2, PKS is 0.3 to 0.9, preferably 0.45 to 0.75, more preferably 0.6667, the cashew nut shell is 0.3 to 0.9, preferably 0.45 to 0.75, more preferably 0.5, coffee husk 0.2 to 0.6, preferably 0.35 to 0.45, more preferably 0.4, wood pellets are 0.05 to 0.2, preferably 0.14 to 0.18, more preferably 0.1667, pine is 0.1 to 0.4, preferably Crab can be from 0.15 to 0.25, more preferably 0.2, woody byproducts can be from 0.1 to 0.4, preferably from 0.15 to 0.25, more preferably from 0.2, very preferably up to ± 10% for each biomass May be acceptable.

If the BTW ratio is out of the extraction efficiency of the mineral component is lowered.

10, 30: reactor body
11: biomass inlet
12: catalyst water inlet
13: biomass outlet
14: catalyst water outlet
15: impurity separator
20: mixing screw
21: axis of rotation
22: angle frame
23: screw shaft
24: variable rigid body
25: screw wing
26: punching plate
27: bucket
100, 200: continuous biomass mineral ingredient extraction device

Claims (12)

A biomass inlet through which biomass is introduced;
A catalyst water inlet port through which catalyst water is introduced;
A reactor main body through which the biomass and the catalyst water are introduced to extract mineral components of the biomass;
A mixing screw rotatably disposed inside the reactor body and stirring the biomass and the catalyst water to be uniformly mixed;
Biomass outlets from which mineral components have been removed; And
Catalytic water outlet;
In the biomass mineral component extraction apparatus comprising:
The mixing screw
A rotating shaft rotating by the power of the motor;
A plurality of pipe-shaped angle frame is connected at regular intervals around the rotation axis, the screw shaft of the annular arrangement;
A variable rigid body in the form of a net surrounding the outer circumferential surface of the screw shaft;
Screw blades are installed in a spiral form along the outer circumferential surface of the screw shaft; And
A bucket fixed to the rear end of the angle frame;
Including,
Continuous biomass mineral component extraction device is formed with a plurality of punching plate in the form of a perforated plate between the screw blades. delete The method of claim 1,
The punching plate is a continuous biomass mineral component extraction device is formed to be inclined at a predetermined angle between the screw blades. The method of claim 1,
The reactor body is a continuous biomass mineral component extraction device in the form of a tube. The method of claim 1,
The reactor body is a continuous biomass mineral component extraction device in the form of a box having an open top. The method of claim 1,
Continuous biomass mineral component extraction device further comprises an impurity separator in the lower portion of the reactor body. The method of claim 1,
The biomass outlet is a continuous biomass mineral component extraction device is a perforated vibration plate. The method of claim 7, wherein
Continuous biomass mineral component extraction device further comprises a water injection device for removing the solid components attached to the perforated vibrating plate. The method of claim 1,
Mass ratio of the catalyst water and the raw material is supplied to the reaction base is a continuous biomass mineral component extraction device is 1: 1 to 10: 1. The method of claim 1,
Continuous biomass mineral component extraction apparatus further comprises a pH adjusting tank for adjusting the pH of the catalyst water to 2 to 4. The method of claim 1,
The catalyst water discharged from the catalyst water outlet is a continuous biomass mineral component extraction device is recovered to the catalyst water inlet via a membrane filter or ion exchange resin. The method of claim 1,
Biomass mineral component extraction device further comprises a roller for smoothing the rotation of the mixing screw in the reactor body.

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