KR102417652B1 - Biomass solidification fuel manufacturing device using subcritical water - Google Patents

Abstract

The present invention relates to a biomass solidified fuel manufacturing device using subcritical water. A disclosed biomass solidified fuel manufacturing device manufactures solidified fuel using biomass, wherein the device includes an input member, a reaction tank, a discharge member, and a solid mixture forming member. Since steam to be supplied to the reaction tank is generated by a steam generator composed of a compressor and a heat coil, biomass reacts under a subcritical water condition while using water, thereby ensuring an advantage of increasing the recovery rate of the solid mixture.

Description

Biomass solidification fuel manufacturing device using subcritical water

The present invention relates to an apparatus for manufacturing biomass solidified fuel using subcritical water.

In modern society, along with the development of science and technology, the environmental burden on the global scale has also increased. This is because, in human activities, the use of fossil fuels due to mass production and mass consumption has increased rapidly due to population growth. As a result, global warming occurred due to the increase in carbon dioxide in the atmosphere, and abnormal climate change also occurred due to the increase in water temperature due to the destruction of the ozone layer. In order to solve this problem, the Framework Act on Resource Circulation, which was implemented in 2018, was based on creating a sustainable circular society by maximizing recycling and reuse by mobilizing ideas and technologies rather than landfilling or incineration. A new energy source that can replace the

Renewable energy can be representative of solar power, solar heat, geothermal heat, wind power, biomass resources, etc. Among these renewable energy, the biomass resource is a plant that synthesizes organic matter by receiving solar energy and an animal that uses them as food; It is a generic term for living organisms such as microorganisms, and refers to the formation of an energy source using biomass such as food waste, food wastewater, organic industrial waste (wastewater), and livestock manure.

It is those of the patent literature presented below that can be presented as an example for manufacturing a fuel using the biomass.

However, according to the conventional fuel using biomass including the patent documents presented below, an organic solvent such as ethanol or methanol was used to prepare the fuel, but when using the organic solvent, an additional process of completely removing the residual solvent is required. There was a required problem, and in order to solve this problem, a method of using water as a substitute for the organic solvent has been developed. Since it is not smooth, the reaction time is relatively long, and as a result, there is a problem in that the recovery rate of the reactants is lowered.

Publication No. 10-2018-0133444, Publication Date: December 14, 2018, Title of Invention: Biomass Solid Fuel Patent Registration No. 10-1915824, Registration Date: October 31, 2018, Title of Invention: Preparation of Fuel from Biomass-derived Chemicals

An object of the present invention is to provide a biomass solidification fuel manufacturing apparatus using subcritical water, which can increase the recovery rate while using water when manufacturing fuel using biomass.

According to an aspect of the present invention, there is provided an apparatus for manufacturing a solidified fuel using biomass using subcritical water, comprising: an input member to which the biomass is input; a reactor for reacting the biomass input from the input member under subcritical water conditions to form a reactant; a discharge member for discharging the reactants formed in the reaction tank; and a solid mixture forming member configured to mix the reactant discharged from the discharging member with a component required for solidification to form a solid mixture, wherein the reaction tank is a reaction chamber in which the biomass is accommodated and the reactant is formed and a chamber insulator surrounding the outside of the reaction chamber to insulate the reaction chamber, and a chamber inlet connected to an upper portion of the reaction chamber to allow the biomass input from the input member to flow into the reaction chamber and a chamber outlet connected to a lower portion of the reaction chamber to discharge the reactants formed in the reaction chamber, and the reaction chamber so that the biomass accommodated in the reaction chamber can be reacted in the subcritical water condition A steam supply for supplying steam to the inside of the, a stirrer for stirring the biomass accommodated in the reaction chamber, and rotational force supply means for supplying a rotational force to the stirrer so that the stirrer can be rotated, the reaction chamber a vapor ejector for discharging the vapor from the inside of the reaction chamber after the reactants are formed in an inlet steam injector connected to the inlet and spraying steam to prevent the biomass flowing into the chamber inlet from sticking to the chamber inlet, and the reactant connected to the chamber outlet and discharged from the chamber outlet is the chamber A discharge-side steam injector that injects steam to prevent sticking to the discharge port, is connected to the chamber discharge port, and while the biomass is formed from the reactant in the reaction chamber, those in the lower inner side of the reaction chamber are the reaction It includes a floating steam supply for supplying steam through the chamber outlet so as to float toward the inner space of the chamber, wherein the steam sprayed from the inlet side steam injector and the discharge side steam injector The pressure of the steam is relatively low compared to the pressure of the steam supplied from the steam supply, the pressure of the steam supplied from the floating steam supply is relatively low compared to the pressure of the steam supplied from the steam supply do it with

According to the apparatus for producing a biomass solidified fuel using subcritical water according to an aspect of the present invention, the apparatus for producing a biomass solidified fuel using subcritical water produces a solidified fuel using biomass, an input member, a reaction tank, It includes a discharge member and a solid mixture forming member, and as steam supplied to the reaction tank is generated by a steam generator comprising a compressor and a thermal coil, the recovery rate of the solid mixture by reacting the biomass in subcritical water conditions using water It has the effect of increasing the

1 is a view showing a schematic view of an apparatus for manufacturing biomass solidified fuel using subcritical water according to a first embodiment of the present invention.
2 is a view showing a state of a reaction tank constituting the apparatus for manufacturing biomass solidification fuel using subcritical water according to the first embodiment of the present invention.
3 is a view showing a state of a reaction tank constituting an apparatus for manufacturing biomass solidified fuel using subcritical water according to a second embodiment of the present invention.
Figure 4 is an enlarged view of an enlarged cross section of part A of Figure 3;

Hereinafter, an apparatus for manufacturing biomass solidified fuel using subcritical water according to an embodiment of the present invention will be described with reference to the drawings.

1 is a schematic view showing an apparatus for manufacturing biomass solidification fuel using subcritical water according to a first embodiment of the present invention, and FIG. 2 is a view showing biomass solidification using subcritical water according to a first embodiment of the present invention. It is a diagram showing the appearance of the reaction tank constituting the fuel production apparatus.

1 and 2 together, the biomass solidified fuel manufacturing apparatus 100 using subcritical water according to the present embodiment produces solidified fuel using biomass, and an input member 110 and a reaction tank ( 120 , and a discharging member 140 and a solid mixture forming member 150 .

The input member 110 is to input the biomass so that the biomass is moved to the reactor 120, is formed in a hopper shape, and the biomass transferred from the outside is input through an open top.

The reaction tank 120 reacts the biomass input from the input member 110 under a subcritical water condition to form a reactant, and includes a reaction chamber 121 , a chamber insulator 122 , and a chamber inlet 123 . And, the chamber outlet 124, the steam supply 125, the agitator 128, the rotational force supply means 130, the steam ejector 135, the inlet side steam injector 131, the discharge side steam injector ( 132), and a floating steam supply 133.

In the reaction chamber 121 , a predetermined space that can be sealed to the outside is formed therein, and the biomass input from the input member 110 is accommodated in the inner space to form the reactant.

Here, the reactant refers to a mixture of a gaseous reactant in a gaseous state, a liquid reactant in a liquid state, and a solid reactant in a solid state.

The biomass injected into the reaction chamber 121 is subjected to a step of hydrolyzing the biomass under subcritical water conditions by pressurizing high-temperature and high-pressure steam and then stirring, and then discharging the vapor inside the reaction chamber 121 for the reaction By rapidly depressurizing the inside of the chamber 121 , the hydrolyzed cell wall is crushed to reduce the molecular weight to form the reactant, and the reduced molecular weight reactant is discharged from the reaction chamber 121 .

The chamber insulator 122 surrounds the outside of the reaction chamber 121 to insulate the inside of the reaction chamber 121 from the outside, and in this embodiment, the chamber insulator 122 has a thickness of 100 mm. have

The chamber inlet 123 is connected to the upper portion of the reaction chamber 121 to allow the biomass input from the input member 110 to flow into the reaction chamber 121 .

The chamber outlet 124 is connected to a lower portion of the reaction chamber 121 to discharge the reactant formed in the reaction chamber 121 .

The chamber discharge port 124 is formed in plurality. Then, it is possible to effectively manage the discharge amount and the discharge speed of the reactants formed in the reaction chamber 121, and even if some of the plurality of chamber outlets 124 are in a malfunctioning state or in a maintenance state, the reactants are discharged. There are advantages that can be

In the present embodiment, the chamber discharge port 124 is composed of three, but this is only an example, and two or more may be formed according to the required maximum discharge amount of the reactant.

In this embodiment, a ball valve capable of opening and closing the chamber inlet 123 and the chamber outlet 124 is applied, and the ball valve has stable opening and closing performance of a ball applied therein. It is preferably made of a trunnion mounting structure to ensure this.

The trunnion mounting structure is a ball valve in which the ball is fixed at the upper and lower portions, and the seat moves, and can be used in a wide pressure range from low pressure to high pressure, and is a structure applied to a relatively large diameter.

The steam supply 125 supplies steam to the inside of the reaction chamber 121 so that the biomass accommodated in the reaction chamber 121 can be reacted in the subcritical water condition, and a compressor 126 and a steam It includes a generator 127 and a vapor transfer pipe 127a.

The compressor 126 compresses water supplied from the outside to a high pressure.

Here, the high pressure refers to a relatively high pressure compared to the external atmospheric pressure, and in this embodiment, the compressor 126 compresses the water to a pressure of 20 bar to 23 bar.

The steam generator 127 is connected to the compressor 126 and consists of a heat coil that supplies heat to the high-pressure water formed by the compressor 126 to generate the steam in a high-pressure and high-temperature state. As an example, a superheated steam generator using superheated steam may be presented.

Here, the high temperature refers to a relatively high temperature compared to the external atmospheric temperature, and in this embodiment, the steam generator 127 increases the temperature of the water at high pressure to 250 to 300°C.

Then, the water stored in a water tank, etc. and introduced into the steam supply 125 is at a pressure of 20 bar to 23 bar by the compressor 126 and the steam generator 127 and a high temperature of 250 to 300 ° C. It becomes the steam generator 127 of high temperature and high pressure.

In this embodiment, the compressor 126 and the steam generator 127 are integrally manufactured.

The steam moving pipe 127a is connected between the steam generator 127 and the reaction chamber 121 to transfer the high-pressure and high-temperature steam formed by the compressor 126 and the steam generator 127 to the reaction chamber. As moving to (121), a pipe or the like may be presented as an example.

The stirrer 128 agitates the biomass accommodated in the reaction chamber 121 and includes a stirring shaft 128a and a stirring blade 128b.

The stirring shaft 128a is formed in the form of a shaft horizontally penetrating the inside of the reaction chamber 121 , and is connected to the rotational force supply means 130 to rotate in one direction or the other.

A plurality of the stirring blades 128b are extended from the stirring shaft 128a toward the inner surface of the reaction chamber 121 in a state in which they are spaced apart.

The stirring blade (128b) is formed to be inclined at a predetermined angle, such as a diagonal direction with respect to the central axis direction of the stirring shaft (128a).

When the stirring blade (128b) is formed to be inclined at a predetermined angle with respect to the central axis direction of the stirring shaft (128a), the stirring shaft (128a) is rotated by the rotation of the rotational force supply means (130), the stirring shaft The stirring blade 128b is rotated in the form of a screw by the rotation of 128a, and accordingly, the biomass accommodated in the reaction chamber 121 is removed from the stirring shaft 128a in the reaction chamber 121. Since the vertical movement with respect to the central axis direction and the axial movement in the central axis direction are made together, the mixing of the biomass can be effectively performed.

The rotational force supply means 130 supplies rotational force to the stirrer 128 so that the stirrer 128 can be rotated, and may be an electric motor or the like.

The rotational force supply means 130 is preferably provided with an inverter motor that is smooth to drive and can smoothly control the rotational speed of the stirrer 128 .

The vapor ejector 135 is connected to the reaction chamber 121 to discharge the vapor from the inside of the reaction chamber 121 after the reactant is formed in the reaction chamber 121 , It is to be discharged at a relatively low temperature and pressure compared to the temperature and pressure when supplied to the inside.

Reference numeral 136 denotes a pressure reducer disposed between the reaction chamber 121 and the vapor ejector 135 to reduce the pressure of the vapor discharged to the vapor ejector 135 .

The temperature of the steam discharged to the steam ejector 135 is 150 to 200 ℃, the pressure is 0.3 to 15 atmospheres (atm).

The inlet side steam injector 131 is connected to the chamber inlet 123 so that the biomass flowing into the chamber inlet 123 flows into the chamber inlet 123 and is fixed inside the chamber inlet 123 . This is to inject steam into the chamber inlet 123 to prevent it from happening.

The discharge-side steam injector 132 is connected to the chamber discharge port 124 to prevent the reactant discharged from the chamber discharge port 124 from sticking to the inside of the chamber discharge port 124 of the chamber discharge port 124 . It sprays steam inside.

When formed as described above, it is possible to keep the inside of the chamber inlet 123 and the chamber outlet 124 clean, as well as various valves operated inside the chamber inlet 123 and the chamber outlet 124 . Malfunctions of the various valves generated due to the adhesion of the biomass and the reactants to the cells can be prevented, and accordingly, it is possible to prevent shortening of the life of the reaction chamber 121 in advance.

The pressure of the steam injected from the inlet side steam injector 131 and the discharge side steam injector 132 is 5 atm.

The floating steam supply 133 is connected to the chamber outlet 124 and while the biomass is formed as the reactant in the reaction chamber 121 , those in the lower inner side of the reaction chamber 121 are the Steam is supplied through the chamber outlet 124 so as to float toward the inner upper portion and inner space of the reaction chamber 121 .

In detail, the floating steam supply 133 supplies steam having a temperature of 150 to 200° C. and a pressure of 5 atmospheres to the inner space of the reaction chamber 121 through the chamber outlet 124 .

Then, by the steam supplied from the floating steam supplier 133 , the biomass is spread under the inner lower part of the reaction chamber 121 , so that the reaction under the subcritical water condition is not performed properly inside the reaction chamber 121 . It flows into space and can react under the subcritical water condition, and thus the reactant can be efficiently formed with respect to the introduced biomass.

Although not shown in the drawings, a plurality of steam supply pipes may be arranged in a circular shape in the floating steam supply 133 to supply the steam to flow in a cyclone shape.

In this embodiment, the discharge-side steam injector 132 and the floating steam supply 133 are connected to the plurality of chamber outlets 124, respectively, and only one of the plurality according to the inflow amount of the biomass and a predetermined operation method It may be operated, or a plurality of them may be operated together.

Reference numeral 134 denotes a plurality of locations for the operation of the reaction tank 120.

It is an actuating valve air supply that supplies air to the actuating valves so that actuated valves such as a fitted check valve can be actuated.

On the other hand, in the present embodiment, the biomass solidification fuel manufacturing apparatus 100 using the subcritical water further includes a reactant storage tank (139).

The reactant storage tank 139 is connected to the chamber outlet 124 to store the reactants formed in the reaction chamber 121 , and a storage tank or the like may be presented as an example.

The discharging member 140 discharges the reactants formed in the reaction tank 120 , and includes a gaseous reactant ejector 141 , a liquid reactant ejector 142 , a solid reactant ejector 143 , and a reactant separator 144 . ) is included.

The gaseous reactant discharger 141 is connected to the reactant storage tank 139 and discharges a gaseous reactant among the reactants discharged from the reaction tank 120 , and an electric pump may be presented as an example.

The gaseous reactant discharged by the gaseous reactant discharger 141 is discharged to the outside.

At this time, between the reactant storage tank 139 and the gaseous reactant ejector 141 or at the rear end of the gaseous reactant ejector 141, a cooling device (not shown) so that the temperature of the gaseous reactant can be discharged in a relatively reduced temperature state. ) may be additionally installed.

The liquid-phase reactant discharger 142 discharges a liquid-phase reactant among the reactants discharged from the reaction tank 120 , and an electric pump or the like may be presented as an example.

Here, the liquid reactant refers to a liquid having a relatively large proportion of the reactant, and although it is relatively small compared to the liquid reactant, the solid reactant may be mixed together.

The liquid reactant discharged by the liquid reactant ejector 142 may be a viscous mixed fluid, and the liquid reactant is stored in a separately provided liquid reactant storage tank (not shown).

Although not shown in this embodiment, an oil-water separator or the like may be additionally installed at the rear end of the liquid reactant discharger 142 to separate and store water and oil from the viscous mixed fluid.

The solid reactant ejector 143 discharges a solid reactant in a solid state among the reactants discharged from the reaction tank 120 , and is formed in the form of a hopper with an open lower portion.

Here, the solid reactant refers to a product having a relatively large ratio of the solid state among the reactants, and although it is relatively small compared to the solid reactant, the liquid reactant may be mixed together.

The reactant separator 144 separates the liquid reactant in a liquid state and the solid reactant in a solid state among the reactants discharged from the reaction tank 120 from each other, and a plurality of spaces separated from each other are formed in a lattice form. (strainer) may be presented as an example.

Then, among the reactants, the liquid reactant that has passed through the reactant separator 144 is discharged through the liquid reactant discharger 142, and the solid reactant filtered by the reactant separator 144 among the reactants is the solid reactant It is discharged through the ejector (143).

The solid mixture forming member 150 mixes the reactant discharged from the discharging member 140 with the components required for solidification to form a solid mixture.

Here, the component required for the solidification refers to a component necessary to achieve solidification, such as cement, which is added to make a hard mass material, and the solid mixture is a solid mass material in which the solidification component such as cement is mixed with the solid mass material will be made with

The solid mixture may be formed in various forms including a desired form, for example, pellets.

A moving screw (not shown) moving in one direction is formed inside the solid mixture forming member 150 , and the solid reactant introduced into the solid mixture forming member 150 is moved along the moving screw. relatively stiffer.

Hereinafter, the operation of the biomass solidification fuel manufacturing apparatus 100 using the subcritical water according to the present embodiment will be described with reference to the drawings.

First, a large amount of the biomass is input through the input member 110 .

Then, the steam supplied from the steam supply 125 is supplied to the reaction tank 120 so that the reaction occurs in the subcritical water condition.

Then, the reactant formed in the reaction tank 120 is stored in the reactant storage tank 139 .

Among the reactants stored in the reactant storage tank 139, the gaseous reactant is discharged through the gaseous reactant ejector 141, and the liquid-phase reactant that has passed through the reactant separator 144 among the reactants is the liquid-phase reactant ejector 142 ), and the solid reactant filtered by the reactant separator 144 among the reactants is discharged through the solid reactant ejector 143 .

The solid reactant discharged through the solid reactant discharger 143 is input to the solid mixture forming member 150, and the solid mixture forming member 150 forms the solid mixture using the introduced solid reactant.

As described above, the biomass solidified fuel manufacturing apparatus 100 using the subcritical water produces the solidified fuel using the biomass, and the input member 110, the reactor 120, and the discharge It includes a member 140 and the solid mixture forming member 150, and as the steam supplied to the reactor 120 is generated by the compressor 126 and the steam generator 127 comprising a thermal coil, By reacting the biomass in subcritical water conditions using water, it is possible to increase the recovery rate of the solid mixture.

Hereinafter, an apparatus for manufacturing biomass solidified fuel using subcritical water according to other embodiments of the present invention will be described with reference to the drawings.

In carrying out this description, the description overlapping with the content already described in the above-described first embodiment of the present invention will be omitted here instead of it.

3 is a view showing the appearance of a reactor constituting an apparatus for manufacturing biomass solidification fuel using subcritical water according to a second embodiment of the present invention, and FIG. 4 is an enlarged view of a section A of FIG. 3 .

3 and 4 together, in this embodiment, the biomass solidification fuel manufacturing apparatus using subcritical water uses a part of the steam supplied from the steam supply to the reactor, more precisely, the reaction chamber 221, the agitator 228 ) includes a biomass adhesion preventing member 260 to prevent biomass from adhering to the surface of the stirring blade 228b constituting it.

In detail, the biomass adhesion preventing member 260 includes a stirring-side vapor flow unit 261 and a vapor flow conversion unit 266 .

The stirring-side steam flow unit 261 is connected between a steam transfer pipe 227a through which high-temperature and high-pressure steam moves and the agitator 228, and stirs some of the steam supplied from the steam supplier to the reaction chamber 221 . The flow to the blade 228b includes a stirrer steam inlet pipe 262 , a stirring shaft steam flow path hole 263 , a stirring blade steam flow path hole 264 , and a steam injection nozzle 265 .

The agitator vapor inlet pipe 262 is formed in the form of a tube to connect between the vapor moving pipe 227a and the agitator 228, and through the agitator vapor inlet pipe 262, from the steam supply to the reaction chamber ( Some of the steam supplied to the 221) is introduced into the agitator (228).

The stirring shaft steam passage hole 263 is formed to have a predetermined length elongated from the center of the stirring shaft 228a in the axial direction of the stirring shaft 228a, and communicates with the agitator steam inlet pipe 262 .

The stirring blade steam passage hole 264 is formed to be elongated by a predetermined length from the center of the stirring blade 228b in the longitudinal direction of the stirring blade 228b while communicating with the stirring shaft steam passage hole 263 .

A plurality of the steam injection nozzles 265 are vertically spaced apart from each other in the longitudinal direction of the stirring blades 228b and are formed through, and communicate with the steam injection nozzles 265 .

When the stirring-side steam flow part 261 is formed as described above, some of the steam supplied from the steam supplier to the reaction chamber 221 is introduced into the stirrer steam inlet pipe 262 and then the stirring shaft steam flow path It is sprayed outwardly toward the biomass from the vapor injection nozzle 265 through the hole 263 and the stirring blade vapor passage hole 264 .

The stirring vane vapor passage hole 264 is formed in the center of each of the plurality of stirring blades 228b, and the steam injection nozzles 265 are formed while being spaced apart from each other in each of the stirring blades 228b. Then, the vapor introduced into the agitator vapor inlet pipe 262 may be uniformly sprayed toward the biomass accommodated in the reaction chamber 221 .

The steam flow diverter 266 is formed on the outside of the stirring vane 228b, and the steam flowing through the stirring side steam flow unit 261 is sprayed along the outer surface of the stirring vane 228b. It includes a vapor flow diverting body 267 , a vapor flow guide surface 268 , a body support 269 , and a biomass inflow prevention protrusion 270 .

The vapor flow conversion body 267 is disposed to be spaced apart from each other by a predetermined distance to the outside at a position facing each of the vapor injection nozzles 265 among the stirring blades 228b.

The vapor flow diverting body 267 is formed to have a relatively large diameter compared to the diameter of the vapor injection nozzle 265 so as to cover the upper part of the vapor injection nozzle 265 .

The steam flow guide surface 268 faces the steam injection nozzle 265 and is formed on one surface that is the inner surface of the steam flow conversion body 267, and the steam injection side is formed in a concave curved shape. It is to guide the steam injected through the steam injection nozzle 265 to flow toward the surface of the stirring blade (228b).

The body support 269 is connected between the swing blade and the vapor flow diverting body 267 to support the vapor flow diverting body 267 .

The biomass inflow prevention protrusion 270 prevents the biomass stirred by the agitator 228 from flowing into the vapor injection nozzle 265 in the reaction chamber 221 .

In detail, the biomass inflow prevention protrusion 270 protrudes from the edge of the vapor injection nozzle 265 to a predetermined length, and is formed in a shape that gradually becomes sharper toward the outside.

In addition, the inner and outer surfaces of the biomass inflow prevention protrusion 270 are directed toward the distal end of the vapor flow diverting body 267 from the vapor injection nozzle 265 toward the distal end of the vapor flow diverting body 267 . It is formed in the shape of a curved curved surface.

Then, at least a part of the vapor injected from the vapor injection nozzle 265 is guided by the vapor flow guide surface 268 , and another part of the vapor injected from the vapor injection nozzle 265 is the biomass. While being guided by the inner surface of the inflow prevention protrusion 270, it can be moved toward the distal end of the vapor flow conversion body 267, so that the vapor can be sprayed while spreading, while the bio on the outside of the stirring blade 228b The mass flows into the inside of the vapor flow conversion body 267 and can be blocked by the outer surface of the biomass inflow prevention protrusion 270 .

When the biomass inflow prevention protrusion 270 is formed as described above, the separation space between the surface of the stirring blade 228b and the vapor flow conversion body 267 becomes relatively narrow, and accordingly, the stirring blade ( The inflow of the biomass through the space between the surface of 228b) and the vapor flow diverting body 267 may be blocked by the biomass inflow prevention protrusion 270 .

As the biomass adhesion preventing member 260 is configured as described above, the high temperature and high pressure supplied from the vapor supplier to the reaction chamber 221 while the agitator 228 is rotated while stirring the biomass is performed. After some of the steam is introduced into the agitator steam inlet pipe 262, it is injected from the steam injection nozzle 265 through the stirring shaft steam flow path hole 263 and the stirring blade steam flow path hole 264, and the steam The steam injected from the injection nozzle 265 collides with the vapor flow guide surface 268 and then is guided by the vapor flow guide surface 268 and flows toward the surface of the stirring blade 228b, so that the biomass It is possible to prevent the biomass from randomly adhering (adhering) to the stirring blade 228b during stirring.

In this embodiment, as the steam injected from each of the plurality of steam injection nozzles 265 is simultaneously flowed toward the surface of the stirring blade 228b by the respective steam flow guide surfaces 268, the steam is stirred. The wing 228b is completely surrounded, and thus, it is possible to effectively prevent the biomass from sticking while being stirred.

In the above, the present invention has been shown and described with respect to specific embodiments, but those skilled in the art can variously modify the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. and can be changed. However, it is intended to clearly state that all such modifications and variations are included within the scope of the present invention.

According to the apparatus for manufacturing biomass solidified fuel using subcritical water according to an aspect of the present invention,

According to the apparatus for producing a biomass solidified fuel using subcritical water according to an aspect of the present invention, the apparatus for producing a biomass solidified fuel using subcritical water is to produce a solidified fuel using biomass, an input member, a reaction tank, By including the discharge member and the solid mixture forming member, there is an effect that the recovery rate of the solid mixture can be increased by reacting the biomass in subcritical water conditions using water.

Therefore, it can be said that the industrial applicability is high.

100: biomass solidification fuel device using subcritical water
110: input member 120: reaction tank
121: reaction chamber 122: chamber insulation
123: chamber inlet 124: chamber outlet
125: steam supply 128: agitator
130: torque supply means 131: inlet side steam injector
132: discharge side steam injector 133: floating steam supply
135: vapor ejector 260: biomass adhesion prevention member

Claims (4)

As a biomass solidified fuel manufacturing apparatus using subcritical water for manufacturing a solidified fuel using biomass,
an input member into which the biomass is input;
a reactor for reacting the biomass input from the input member under subcritical water conditions to form a reactant;
a discharge member for discharging the reactants formed in the reaction tank; and
a solid mixture forming member for mixing the reactant discharged from the discharging member and a component required for solidification to form a solid mixture;
The reactor is
a reaction chamber in which the biomass is received and the reactant is formed;
a chamber insulator surrounding the outside of the reaction chamber to insulate the reaction chamber;
a chamber inlet connected to the upper side of the reaction chamber so that the biomass input from the input member flows into the reaction chamber;
a chamber outlet connected to the lower portion of the reaction chamber to discharge the reactants formed in the reaction chamber, and comprising a plurality of chamber outlets;
a vapor supplier for supplying vapor into the reaction chamber so that the biomass accommodated in the reaction chamber can be reacted in the subcritical water condition;
A stirrer for agitating the biomass accommodated in the reaction chamber;
rotational force supply means for supplying rotational force to the stirrer so that the stirrer can be rotated;
A vapor ejector for discharging the vapor from the inside of the reaction chamber after the reactants are formed in the reaction chamber, and for discharging at a relatively low temperature and pressure compared to the temperature and pressure when supplied to the interior of the reaction chamber; ,
an inlet steam injector connected to the chamber inlet to inject steam to prevent the biomass flowing into the chamber inlet from sticking to the chamber inlet;
a discharge-side steam injector connected to the chamber outlet and spraying steam to prevent the reactants discharged from the chamber outlet from adhering to the chamber outlet;
It is connected to the chamber outlet, and while the biomass is formed as the reactant in the reaction chamber, steam is supplied through the chamber outlet so that things in the lower inner side of the reaction chamber can float toward the inner space of the reaction chamber. Including a floating steam supply to supply,
The pressure of the steam injected from the inlet side steam injector and the steam injected from the discharge side steam injector is relatively low compared to the pressure of the steam supplied from the steam supplier,
The pressure of the steam supplied from the floating steam supply is relatively low compared to the pressure of the steam supplied from the steam supply,
The pressure of the steam injected from the inlet side steam injector and the discharge side steam injector becomes 5 atm,
The floating steam supplier supplies the steam having a temperature of 150 to 200 °C and a pressure of 5 atm to the internal space of the reaction chamber through the chamber outlet,
the steam supply
A compressor that compresses water supplied from the outside to a high pressure;
a steam generator connected to the compressor and comprising a heat coil for supplying heat to the high-pressure water formed by the compressor to generate the steam in a high-pressure and high-temperature state;
A vapor transfer pipe connected between the steam generator and the reaction chamber to move the high-pressure and high-temperature steam formed by the compressor and the steam generator to the reaction chamber,
The discharge member is
a gaseous reactant discharger for discharging a gaseous reactant among the reactants discharged from the reaction tank;
a liquid reactant discharger for discharging a liquid phase reactant among the reactants discharged from the reaction tank;
a solid reactant discharger for discharging a solid reactant in a solid state among the reactants discharged from the reaction tank;
and a reactant separator for separating the liquid reactant and the solid reactant among the reactants discharged from the reactor,
The stirrer includes a stirring shaft and stirring blades,
The biomass solidification fuel manufacturing apparatus using the subcritical water is
and a biomass adhesion preventing member for preventing the biomass from adhering to the surface of the stirring blade by using a portion of the vapor supplied from the vapor supplier to the reaction chamber;
The biomass adhesion prevention member is
A stirring-side steam flow part connected between the steam moving pipe and the stirrer to flow some of the steam supplied from the steam supply to the reaction chamber to the stirring blades;
It is formed on the outer side of the stirring vane, and comprises a vapor flow diverter that allows the steam flowing through the stirring side steam flow unit to be sprayed along the outer surface of the stirring vane,
The stirring side vapor flow portion
a stirrer vapor inlet pipe connecting between the steam moving pipe and the stirrer;
A stirring shaft steam passage hole formed to be elongated by a predetermined length in the axial direction of the stirring shaft from the center of the stirring shaft and communicating with the stirrer steam inlet pipe;
A stirring blade steam passage hole formed to be elongated by a predetermined length in the longitudinal direction of the stirring blade at the center of the stirring blade while communicating with the stirring shaft steam passage hole;
A plurality of vertically spaced apart in the longitudinal direction of the stirring blades are formed through, and include a steam injection nozzle communicating with the stirring blade steam passage hole,
The vapor flow conversion unit
a steam flow diverting body disposed to be spaced apart from each other by a predetermined distance to the outside from a position facing each of the steam injection nozzles among the stirring blades;
The steam facing the steam injection nozzle and formed on the inner surface of the steam flow conversion body, formed in a concave curved shape to guide the steam injected through the steam injection nozzle to flow toward the surface of the stirring vane. a flow guide surface;
a body support connected between the stirring vane and the vapor flow diverting body to support the vapor flow diverting body;
and a biomass inflow prevention protrusion that prevents the biomass stirred by the agitator from flowing into the vapor injection nozzle in the reaction chamber,
The biomass inflow prevention protrusion protrudes from the edge of the vapor injection nozzle to a predetermined length, and is formed in a shape that gradually becomes sharper toward the outside,
The inner and outer surfaces of the biomass inflow prevention protrusion are formed in a curved shape curved toward the distal end of the vapor flow diverting body from the vapor injection nozzle toward the end of the vapor flow diverting body,
While the stirring of the biomass is performed while the agitator is rotated, a part of the high-temperature and high-pressure steam supplied from the steam supplier to the reaction chamber is introduced into the stirrer steam inlet pipe, and then the stirring shaft steam passage hole and the stirring The steam is injected from the steam injection nozzle through the wing steam passage hole, and the steam injected from the steam injection nozzle collides with the steam flow guide surface, is guided by the steam flow guide surface, and flows toward the surface of the stirring blade. Biomass solidification fuel manufacturing apparatus using subcritical water, characterized in that it can be prevented that the biomass randomly adheres to the stirring blades during stirring for the biomass. delete delete delete

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