KR102126901B1 - System for controlling optimized combustion on separating boiler - Google Patents

Abstract

The present invention relates to a combustion system of a firewood boiler, which can be buried in the ground and can prevent the scattering of sludge generated during combustion. More specifically, the combustion system comprises: a fuel supply unit installed on the ground to provide wood fuel required for combustion; a fuel pushing unit installed and buried in the ground, and providing the wood fuel, supplied through the fuel supply unit, in one direction; a combustion unit for burning the wood fuel, supplied through the fuel pushing unit, multiple times; a heat exchange unit coupled to the combustion unit to perform heat exchange by waste heat by the combustion; an auxiliary combustion means connected to the combustion unit and performing an assisting operation to enable complete combustion in the combustion unit; and a control unit for controlling at least one of the fuel supply unit, the fuel pushing unit, the combustion unit, and the auxiliary combustion means. The combustion unit includes: a first combustion furnace buried in the ground and equipped with a burner to burn the wood fuel supplied through the fuel pushing unit; and a second combustion furnace installed to be exposed to the ground, and receiving the combustion gas burned in the first combustion furnace and secondarily burning the combustion gas. The combustion unit, including the first combustion furnace and the second combustion furnace connected to each other so that the insides of the first and second combustion furnaces communicate with each other, has a structure in which one side of an upper portion of the first combustion furnace and the other side of a lower portion of the second combustion furnace are connected to each other, so as to secure a waste heat temperature of a set temperature by retaining the waste heat generated by the combustion.

Description

Underground buried firewood boiler combustion system {System for controlling optimized combustion on separating boiler}

The present invention relates to a combustion system of a firewood boiler that can be installed in the ground and prevents scattering of sludge generated during combustion.

In general, firewood boilers using solid fuel, which is a pellet processed from wood, etc., are composed of a structure that burns combustible materials in the combustion chamber and discharges the air to the outside. There was a problem that caused.

In order to compensate for these problems, a number of firewood boilers having various functions and combustion functions have been developed.

As an example, Domestic Publication No. 10-2000-0050726 An oil boiler capable of combining wood and combustible household waste as fuel; A primary combustion chamber which is disposed at the bottom of the water tank of the boiler and is installed to be opened and closed by a hinge type inlet door with a burner so as to input wood or combustible waste; A secondary combustion chamber formed to be connected to the primary combustion chamber inside the rear portion of the boiler and having a burner mounting portion on which a secondary burner can be installed on the side; A plurality of pipes horizontally installed on the upper part of the secondary combustion chamber to the upper part of the boiler; And it is disposed on the inside of the front of the boiler so that the door is hinged to the front to be able to clean the connection, a removable mesh at the bottom and a fixed inclined plate and a removable dust collection box are installed to include cleaning devices connected to the flue.

Since the above-mentioned conventional technology is a configuration that can use an oil boiler and a wood boiler in an integrated manner, it is possible to selectively use oil or wood as a fuel, but it is a configuration that can be costly to construct, and thus is a large-scale industrially available boiler. Not only can the furnace not be joined, but even if it is incinerated, the wood has a structure in which ash is scattered outside when burned, and there is a problem that there is a large annual loss due to outside air.

Another prior art, Korean Publication No. 10-2013-0050814 A circular outer shell that protects the hot water pipe while reducing heat loss of the hot water; And a circular inner plate in which a plurality of perforation holes for discharging the combustion gas inserted in the circular outer plate to the first circular cylinder are arranged. A first circular passage formed by arranging a plurality of perforation holes to induce combustion gas to move in the direction of the blower while laying the lower outer periphery of the circular inner plate; An external air control damper that is provided on the circular outer plate and inflows external air into the atmosphere while controlling air velocity and air volume; An external air inflow passage connected to the external air control damper to induce external air to move in the direction of the blower; A blower that sucks in the combustion gas and external air introduced through the first circular cylinder and the external air inflow passage and discharges the mixed air at wind pressure; A mixed air passage formed between a circular outer plate and a first circular cylinder that sucks the mixed air by the wind pressure of the blower; An injection nozzle for spraying mixed air flowing out through the mixed air passage; A round bar mesh plate provided on the inner periphery of the first cylindrical cylinder for inducing reburning of the mixed air sprayed through the spray nozzle together with the ember and flammable materials; A second circular passage having a lower outer periphery of a first circular cylinder inducing movement of a portion of the mixed air among the mixed air that is burned while passing through the round bar mesh plate in an exhaust outlet direction; An exhaust outlet provided on the outer periphery of the circular outer shell that discharges the mixed air flowing out through the second circular cylinder out of the atmosphere; It includes.

Looking at the above-mentioned prior art, the purpose of the hot water pipe is not exposed to the outside, and is aimed at maintaining the temperature of the heat, but there is no other characteristic point other than the technology of simply not exposing the hot water pipe to the outside, as well as ashes during combustion. It is a configuration that has no choice but to scatter outside.

Domestic Publication No. 10-2000-0050726 (Publication Date: 2000.08.05.) Domestic Publication No. 10-2013-0050814 (Publication Date: 2013.05.30.)

In order to solve the above-mentioned conventional problems, the present invention provides a boiler having a large combustion function with high industrial applicability, while minimizing heat loss due to outside air, and that sludge generated during combustion is scattered to the ground. The aim is to provide a firewood boiler equipped with a combustion system that can be prevented.

In order to solve the above-mentioned technical problems, the underground buried firewood boiler combustion system according to the present invention is provided with a fuel supply installed on the ground to provide wood fuel required for combustion, and is installed buried underground and supplied with wood through the fuel supply A fuel pushing unit for providing fuel in one direction, a combustion unit for burning wood fuel supplied through the fuel pushing unit multiple times, and combined with the combustion unit to provide heat exchange by waste heat by combustion A heat exchange unit to be connected to the combustion unit, and controlling at least one of a combustion auxiliary unit and the fuel supply unit, the fuel pushing unit, the combustion unit, and the combustion auxiliary unit to assist complete combustion in the combustion unit It includes a control unit, but the combustion unit is installed in the ground and is supplied with combustion gas burned in the first combustion furnace and the first combustion furnace equipped with a burner to burn wood fuel supplied through the fuel pushing unit. The combustion unit includes a first combustion furnace and a second combustion furnace in which the inside is communicated with each other, and a combustion unit is generated due to combustion. The combustion unit is characterized in that the upper side of the first combustion furnace and the lower side of the second combustion furnace are connected to each other so that the waste heat temperature of the set temperature is maintained by retaining the waste heat.

In addition, the combustion auxiliary means is connected to the first combustion furnace to supply oxygen necessary for combustion so that the primary combustion of the wood fuel by the burner can be completely burned, as well as the oxygen concentration in the combustion gas. A pressurized blower member provided to be maintained and provided to communicate with the inside of the second combustion chamber, but by spraying urea water into nitrogen oxide (NOx) generated during combustion of combustion gas, harmless nitrogen (N2) is discharged without a catalyst. It is preferable to include a filtration equipment member provided to be able to.

In addition, the fuel pushing portion is installed in the ground so that the upper end is horizontal to the boundary surface of the ground, therein the first combustion furnace in which primary combustion is performed is buried in the ground to support the second combustion furnace. Primary combustion of wood fuel by the burner by supplying the wood fuel supplied through the fuel supply part to the first combustion inside, which is installed in the landfill housing to be installed to communicate with the inside of the combustion unit inside the landfill housing. It includes a pushing member is installed so that it can be made, wherein the buried housing to prevent the pushing member is exposed to the outside while providing a movement path to which the fuel supply unit can be moved, the fuel supply unit by an openable supply door It is preferable to include a moving plate to allow the wood fuel supplied by the selectively flowing into the pushing member.

In addition, the pushing member is installed in parallel so as to have a predetermined distance below the moving plate, the loading plate is loaded with wood fuel input through the supply door, the first combustion furnace opposite to the loading plate is moved reciprocally to one side It is made of a pushing cylinder and a plate shape that is installed as possible, but is movably coupled by the pushing cylinder, but supplies a supply plate for supplying the wood fuel loaded on the loading plate to the first combustion by the movement of the pushing cylinder. Included, it is preferable that the supply plate is coupled to the pushing cylinder in a diagonal shape to have a predetermined angle.

According to the present invention, the first combustion furnace, which has a combustion function capable of being easily produced in a large size in a large-scale industrial market differently from the prior art, but is primary combustion, is buried and installed in the ground by landfill housing, and heat loss due to outside air This is prevented, it has the effect of preventing the sludge that can be scattered to the ground by the sludge removal member installed in the ground in advance.

1 is a conceptual diagram of an underground buried firewood boiler combustion system according to the present invention.
Figure 2 is a system diagram of the underground buried firewood boiler combustion system according to the present invention.
3 is a front view of the underground buried firewood boiler combustion system according to the present invention.
Figure 4 is a left side view of the underground buried firewood boiler combustion system according to the present invention.
5 is a right side view of the underground buried firewood boiler combustion system according to the present invention.

Hereinafter, other objects and features of the present invention in addition to the above object will be clearly revealed through the description of the embodiment with reference to the accompanying drawings, and unless otherwise defined, all terms used herein, including technical or scientific terms, are It has the same meaning as generally understood by a person skilled in the art to which the invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

Hereinafter, an underground buried firewood boiler combustion system according to the present invention will be described in detail with reference to the accompanying drawings (hereinafter simply referred to as'combustion system'). Prior to the description, in the present invention, the combustion material that is burned by the burner 311 refers to a conventional combustion material in which wood waste is processed into pellets, etc., which is only one embodiment, and a control unit (600) Also, it refers to a normal operation panel for controlling the components constituting the present invention, which will be described later, by an electric control signal, and a detailed description thereof will be omitted so as not to obscure the subject matter of the present invention.

First, as shown in Figures 1 and 2, the combustion system 1 according to the present invention is to the fuel supply unit 100, the fuel supply unit 100 for largely moving the wood fuel (W / P) necessary for combustion. A fuel pushing unit 200 supplied with wood fuel (W/P), a combustion unit 300 receiving wood fuel (W/P) through the fuel pushing unit 200 and combusting primary and secondary fuels. The combustion unit 300 includes a combustion auxiliary means 500 that assists in exhausting the waste gas harmless to the human body by completely burning when the combustion is performed.

3 to 5, the fuel supply unit 100 temporarily stores the wood fuel (W/P) supplied from the outside, but the fuel pushing the stored wood fuel (W/P) to be described later. Provided to the unit 200 to include the combustion of the wood fuel (W/P) through the combustion unit 300, for example, includes a crane 110 and a transporter 120.

The crane 110 is installed in a high altitude so as to have a predetermined length in the horizontal direction, and is connected to the transport body 120 by a chain block 111 movable along the longitudinal direction of the crane 110. It is done.

Although not shown, the upper portion of the crane 110 is provided with a driving motor (not shown) that is controlled by the control signal of the control unit 600 is installed to automatically execute the movement of the chain block 111, the transport body 120 It should be possible to reciprocate.

The conveying body 120 is made of a hollow enclosure as a whole to accommodate wood fuel (W/P) supplied from the outside, and the upper part is movably installed with the crane 110 through the chain block 111. It is possible to provide the wood fuel (W/P) to be supplied to the fuel pushing unit 200.

A movable and fixed wheel 121 is installed under the transport body 120 to stably move along the upper surface of the landfill housing 210 where the transport body 120 is exposed to the ground GT through the wheel 121. It has a structure that can.

Although not shown, the upper and lower parts of the transport body 120 are provided with control or control of the control unit 600, respectively, and a door that can be manually opened or closed is provided to supply and accept wood fuel (W/P) inside the transport body 120. And, it is possible to supply the received wood fuel (W/P) to the fuel pushing unit 200.

And the fuel pushing unit 200 supplies the wood fuel (W/P) supplied by the above-described transporter 120 to the combustion unit 300 installed in the underground GU, and the combustion unit 300 is As a configuration to be fixedly installed in the ground GU, for example, a buried housing 210 and a pushing member 220 are included.

As shown in the drawing, the buried housing 210 is embedded in the underground GU such that its upper end coincides with the boundary surface (B/L) of the ground GT, but is formed in a hollow enclosure shape with an open upper part as a whole. The first combustion furnace 310, which is a configuration of the pushing member 220 and the combustion unit 300, can be buried in the underground GU.

Through this, when the primary combustion of the wood fuel (W/P) is performed in the first combustion furnace 310, a direct impact due to outside air is prevented, thereby reducing the economical burden of heat insulation on the cross section of the first combustion furnace 310. The paper has the advantage of supplying dust, which is generated when supplying the corresponding wood fuel (W/P) inside the pushing member 220 or supplying the supplied wood fuel (W/P) into the first combustion furnace 310. It has the advantage of minimizing scattering to the ground (GT).

In addition, the interior of the buried housing 210, in addition to the pushing member 220 or the first combustion furnace 310, the operator for the maintenance of the combustion system 1 according to the present invention or the sludge removal member 230 to be described later It is formed to ensure sufficient space.

In addition, a movable plate 213 formed with a supply door 211 that can be automatically or manually opened or closed by a control unit 600 or the like is installed on the upper part of the buried housing 210 installed in the ground GU to be opened so that the upper part is opened. A movable plate 213 is provided to allow the sieve 120 to provide a movable path and to prevent foreign substances, including moisture, from entering the buried housing 210.

The movable plate 213 is formed to be formed in a plate shape as a whole, so that the transport body 120 can be easily moved toward the supply door 211, and the end of the movable plate 213 is airtight with the inside of the buried housing 210. It is installed to be done.

At this time, the moving plate 213 has a viewing window 217 for the operator to visually identify the operation of the pushing member 220 installed below the upper moving plate 213 in addition to the supply door 211 from the ground GT. It is preferable that this is further provided.

On the other hand, the outer surface of the landfill housing 210 made of a metal material embedded in the ground GU is corroded to the adhesive 215d for preventing corrosion of the landfill housing 210 due to the moisture of the ground GU. The prevention layer 215 may be further provided, and the corrosion prevention layer 215 is laminated on the adhesive 215d to have a predetermined thickness by pressing or spraying a thermosetting resin such as epoxy melamine on the surface of the buried housing 210 with a roller. The anti-oxidation layer 215a, which is adhered to, is deposited on the antioxidant layer 215a, but is made of a mixture of SCORIA and PUMICE, which has superior antimicrobial or far-infrared emissivity, and basum (PUMICE). It is deposited on the anti-oxidation layer (215a) to connect with the volcanic crushed mineral layer (215b) and the volcanic crushed mineral layer (215b) made of a mixture of minerals in which the preservation of the fine pores is maintained to prevent adhesion of foreign matter, etc. And a silicate mineral layer 215c composed of a mixture of tourmaline, cordierite, clinoptilolite and shungite.

Here, the volcanic crushed mineral layer 215b is deposited on the outer surface of the antioxidant layer 215a repeatedly so as to have a predetermined thickness so that the space S can be formed adjacent to the longitudinal direction of the buried housing 210, and the silicate mineral layer ( 215c) is applied to the outer surface of the antioxidant layer 215a in the same space S as the thickness of the volcanic crushed mineral layer 215b.

At this time, the volcanic crushed mineral layer (215b) is coated with a wider width in the longitudinal direction of the antioxidant layer (215a) than the silicate mineral layer (215c) due to antibacterial or far-infrared emission rather than preventing adhesion of foreign matter to the landfill housing (210) It is desirable to further maximize the antibacterial effect.

In addition, the silicate mineral layer 215c is configured to prevent foreign matter from being adhered in the form of a lump to the outer surface of the landfill housing 210 installed buried in the underground (GU) by a minute current emitted from the mineral. A mineral containing silicate, a kind of a compound containing an anion surrounded by a negatively charged ligand in which one or more silicon-centered atoms belong, belongs to a mineral having permanent electrical properties, By generating the micro-current, water quality can be improved and foreign matters can be prevented from sticking.

The anti-oxidation layer (215c) that prevents the phenomenon of foreign matters due to moisture adhering to the outer surface of the buried housing 210 by permanently generating a microcurrent and a volcanic crushed mineral layer 215b having such an antibacterial effect ( 215a) to prevent corrosion of the buried housing 210 due to moisture in the ground GU.

The pushing member 220 is installed in the underground GU so as to be movable in the landfill housing 210, and the wood fuel (W/P) supplied through the above-described conveying body 120 into the first combustion furnace 310. The configuration for drawing in includes a loading plate 221, a pushing cylinder 225, and a supply plate 227, for example.

The loading plate 221 is made of a plate shape as a whole, but is installed to have a predetermined distance (for example, the supply plate does not interfere with movement) on the lower side of the movable plate 213 described above to supply the door 211. The wood fuel (W/P) provided through it can be settled on the upper surface.

One side of the loading plate 221 is installed in communication with the fuel supply door 313 of the first combustion furnace 310, and a pushing cylinder 225 is installed on the other side.

At this time, the stacking plate 221 has both sides blocked by a partition wall 223, and the wood fuel (W/P) supplied to the upper surface of the stacking plate 221 is supplied to the first combustion furnace 310 by the supply plate 227. ) It is preferable to prevent it from escaping to the outside of the landfill housing 210 when entering the interior.

The pushing cylinder 225 is installed on the other side of the loading plate 221 facing the fuel supply door 313 so that the rod can be tensioned and contracted by the control signal of the control unit 600, and a supply plate is provided at the end of the rod. (227) is coupled to allow the supply plate 227 to move reciprocally along the longitudinal direction of the loading plate 221 by the movement of the rod.

The supply plate 227 is made of a plate shape having a length in the vertical direction, but one surface thereof is fixedly coupled to the pushing cylinder 225 and the wood fuel supplied to the loading plate 221 by the pushing cylinder 225 (W /P) so that it can be supplied into the first combustion furnace 310 through the opened fuel supply door 313.

At this time, the supply plate 227 is combined with the pushing cylinder 225 to have a diagonal shape so that the wood fuel (W/P) loaded on the loading plate 221 can be easily introduced into the first combustion furnace 310. It is desirable to do.

On the other hand, the fuel pushing unit 200 by the combustion unit 300, which will be described later, the wood fuel (W/P) is burned at the time of combustion, and then the wood fuel (W/P) that has been changed to ash (sludge) is burned. The sludge removal member 230 installed inside the buried housing 210 may be further included for removal within the unit 300. For example, the sludge removal member 230 may include a hydraulic cylinder 231 and a discharge hopper 233. ), a collection box 235 and an air pressure maintaining cylinder 237.

The hydraulic cylinder 231 is operated by the control signal of the control unit 600, but is installed so that the rod can be tensioned and contracted in the horizontal direction below the above-mentioned loading plate 221.

The rod end of the hydraulic cylinder 231 passes through the first combustion furnace 310 and moves the sludge D loaded on the inner bottom surface of the first combustion furnace 310 when moving due to tension or contraction toward the outlet 315 Forced to move to allow the sludge (D) to be discharged out of the first combustion furnace (310).

Of course, the rod end of the hydraulic cylinder 231 (the portion that is introduced into the first combustion) is a mill plate (not shown) made of a plate shape so that the sludge D can be easily discharged through the outlet 315. It may be provided.

Discharge hopper 233 is made of a tubular shape with the upper and lower open as a whole, but the upper portion is in communication with the outlet 315, and the lower portion is installed in communication with the inside of the collection box 235 and is provided through the outlet 315. 1, the sludge D discharged to the outside of the combustion furnace 310 has a structure that can be accommodated into the collection box 235 through the discharge hopper 233.

At this time, the discharge hopper 233 or the collection box 235 by spraying water supplied from the outside to prevent scattering of the sludge (D) accommodated inside the collection box 235 is scattered inside the landfill housing 210 It is preferable that a nozzle (not shown) is further provided.

The air pressure holding cylinder 237 is operated by alternating pairs of longitudinally adjacent to the discharge hopper 233 having a length in the longitudinal direction by the control signal of the control unit 600 to collect through the discharge hopper 233 ( 235) It is possible to minimize the scattering of the sludge (D) accommodated in the landfill housing 210 due to the air pressure difference.

That is, the pair of air pressure maintaining cylinders 237 sequentially open and close the inside of the discharge hopper 233 through the control signal of the control unit 600 to facilitate the combustion even in the process of combustion in the combustion unit 300 ( 300) It is to be able to remove the sludge (D) inside.

In addition, the combustion unit 300 burns a plurality of wood fuels (W/P) supplied by the above-described pushing member 220 over the first and second stages to determine the temperature of the waste heat as well as the residence time of the waste heat. As a configuration for securing, for example, the first combustion furnace 310 and the second combustion furnace 320 are included. Prior to the description, the second combustion furnace 320 in the present invention is shown to be installed to be exposed to the ground GT, but this is only one embodiment, and is the same as the first combustion furnace 310, if necessary. It is also possible to be buried in the underground (GU) so that it can be connected to the heat exchange unit 400 through the buried housing 210.

The first combustion furnace 310 is fixedly installed inside the buried housing 210 so as to be located in the ground GU, but the above-described sludge removal member 230 is installed in the first combustion furnace 310. In the combustion, the sludge (D) of the wood fuel (W/P) has a structure that can be discharged to the outside of the first combustion furnace 310, and for this purpose, the discharge hopper ( 233) The outlet 315 is formed to communicate with the inside.

On the outer surface of the first combustion furnace 310 located in the ground GU, a heat source is provided to directly combust the wood fuel (W/P) supplied to the fuel supply door 313 through the pushing member 220. At least one burner 311 may be provided, and the burner 311 operates through a control signal of the controller 600.

At this time, the opening and closing of the fuel supply door 313 allows opening and closing by the cylinder operating through the control signal of the control unit 600, and the operator directly applies the agent according to the volume of the first combustion furnace 310. It is preferable that the entrance door 317 is formed so that the inside of the one-combustion furnace 310 can be maintained.

The cross section of the first combustion furnace 310 in which primary combustion is performed with wood fuel (W/P) may be provided with an insulating material in consideration of the safety of an operator performing maintenance inside the buried housing 210, and The inner walls of the first combustion furnace 310 as well as the inner walls of the second combustion furnace 320, which will be described later, are provided with a castable material, which is a refractory material, so as to withstand high temperature heat due to combustion.

In addition, as shown, the first combustion furnace 310 is fixedly installed by a support body to have a predetermined height inside the buried housing 210 so that the installation of the sludge removal member 230 or maintenance of the operator can be smoothly performed. If necessary, a ladder 319 or the like is installed on the outer surface to facilitate the movement of the worker.

The second combustion furnace 320 is installed in communication with the interior of the first combustion furnace 310 so as to be exposed to the ground (G-T), as shown.

The second combustion furnace 320 receives the high-temperature waste heat generated when the wood fuel (W/P) is directly burned by the burner 311 in the first combustion furnace 310, and the waste heat is completely burned secondarily. To this end, it has a structure that can be assisted by the combustion auxiliary means 500 to be described later.

Of course, the combustion auxiliary means 500 is also applied to the first combustion furnace 310 and is installed to have a structure capable of providing oxygen necessary for combustion. The detailed description thereof will be described in more detail in the combustion assisting means 500 described later.

The second combustion furnace 320 connected to the first combustion furnace 310, as well as the first combustion furnace 310, the door 317 may be formed on the outer surface thereof, and the secondary surface is used for secondary combustion waste heat In order to be supplied to the heat exchange part 400, a gas outlet 321 fixedly coupled to the heat exchange part 400 is formed to communicate with the inside.

In addition, at least one sensor 323 which communicates with the inside of the second combustion furnace 320 to detect pressure or temperature generated during combustion in the second combustion furnace 320 is provided with the controller 600. It is electrically connected so that detection information can be provided, and the control unit 600 controls the combustion unit 300 as well as the fuel pushing unit 200 through the detection information.

At this time, the second combustion furnace 320 is formed to be connected to the upper portion of the first combustion furnace 310 so as to communicate with the inside of the first combustion furnace 310, as illustrated, the primary in the first combustion furnace 310 The waste heat that is burned stays until it is discharged to the outside through the gas outlet 321 formed on the outer surface of the second combustion furnace 320 so that the high temperature is maintained so that the waste heat is discharged in the combustion unit 300 It is desirable to be able to move in an'S' shape as a whole.

That is, as illustrated, the upper side of the first combustion furnace 310 and the other side of the lower side of the second combustion furnace 320 are connected so that the inside thereof can communicate with each other so that the waste heat due to combustion is entirely within the combustion unit 300. It is to be connected to the heat exchange unit 400 through the gas outlet 321 to have a'S' shaped movement path.

To this end, a residence plate 330 having a length in a vertical direction is further formed in a portion where the first and second combustion furnaces 310 and 320 are connected to each other inside the combustion unit 300 to further extend the residence time of waste heat. It is possible.

In addition, the movement of the waste heat from the direction of the fuel supply door 313 to the gas outlet 321 is the gas outlet through the exhaust pressure (when oxygen is supplied) of the combustion auxiliary means 500 or the burner 311 described later ( It can be easily moved up to 321), but is provided on the side of the heat exchanger 400 if necessary, so that the movement of the waste heat is made by a suction fan (not shown) capable of forcibly sucking the waste heat.

Furthermore, the waste heat moving in the combustion unit 300 is constantly checked through a sensor 323 installed in the combustion unit 300, and when the temperature is lower than the set temperature, the rotational speed of the suction is increased so that the residence time of the waste heat increases. If it is reduced or more, it is possible to increase the rotational speed to be sucked or block the combustion operation to maintain the durability of the combustion unit 300 and to maintain the temperature of the waste heat at a set temperature.

On the other hand, the heat exchange unit 400 in the present invention refers to a conventional boiler that supplies heat or hot water by performing heat exchange such as steam through high-temperature waste heat supplied from the combustion unit 300, and detailed description thereof is omitted. Do it.

In addition, the combustion auxiliary means 500 supplies oxygen to the above-described combustion unit 300 to enable complete combustion, and at the same time, removes nitrogen oxides contained in waste heat discharged to the heat exchange unit 400 to remove nitrogen oxides harmless to the human body. As a configuration for assisting to be discharged, it includes, for example, a pressurized blowing member 510 and a filtration equipment member 520.

The pressurized blowing member 510 is controlled by the control unit 600, but communicates with the inside of the first combustion furnace 310 to burn the wood fuel (W/P) supplied into the first combustion furnace 310 to the burner 311. It includes a nozzle box 511 and a first blower motor 513 in a configuration to provide complete combustion of the combustion gas (waste heat) by providing oxygen required for combustion during direct combustion.

The nozzle box 511 is installed on the lower outer surface of the first combustion furnace 310, but a plurality of nozzles are provided to supply oxygen by forcibly suctioning the first blowing motor 513 into the first combustion furnace 310. Oxygen supplied to the first combustion furnace 310 provides oxygen necessary for combustion of combustion gas even in the course of the secondary combustion in the second combustion furnace 320, so that complete combustion is achieved.

The nozzle box 511 can open and close the nozzle using a check valve controlled by the controller 600 according to the amount of wood fuel (W/P) supplied to the first combustion furnace 310, that is, the amount of combustion. However, for example, when the amount of wood fuel (W/P) supplied is small, the supply of oxygen is adjusted by opening only a part of a plurality of nozzles. When the amount of wood fuel (W/P) is supplied, all the nozzles By opening, it is possible to control the injection amount of oxygen required for combustion.

The nozzle box 511 is connected to the first blowing motor 513 to have a structure in which external air sucked through the first blowing motor 513 can be provided through the nozzle.

In addition, the pressurized blowing member 510 in the present invention has a plurality of configurations to be individually controlled by the control unit 600 according to the size of the combustion unit 300, the landfill housing 210 or the combustion unit of the underground (GU) (300) It is also possible to be installed on the ground (GT).

The filtration facility member 520 is capable of oxidizing nitrogen oxides (NOx) generated by oxidizing nitrogen in the combustion gas at a high temperature when burning wood fuel (W/P) in the combustion unit 300 together with oxygen without catalyst. It includes a pump 521 and a second blowing motor 523 for spraying urea water in a configuration for removing the corresponding nitrogen oxide so that it can be harmless nitrogen (N2) gas during injection.

The pump 521 is installed on the ground GT so as to be connected to a tank (not shown) where the urea water is accommodated, but is connected to the injection hole 525 installed through the second combustion furnace 320 to communicate with the urea water to remove the urea water. The second combustion furnace 320 is sprayed in the form of a spray, and the injection hole 525 is also connected to the second blowing motor 523 to supply oxygen to the second combustion furnace 320 at a constant discharge pressure along with injection of urea water. ) Have a structure that can be discharged inside.

The combustion system 1 according to the present invention having such a structure has a combustion function capable of being easily produced in a large size in a large-scale industrial market differently from the prior art, but the first combustion furnace 310 in which primary combustion is performed is buried The housing 210 is buried in the ground GU to prevent heat loss due to outside air, and sludge that can be scattered to the ground GT by the sludge removal member 230 installed in the ground GU is unburned. It has the effect of preventing it.

As described above, in the present invention, specific matters such as specific components and the like have been described by limited embodiments and drawings, but they are provided only to help the overall understanding of the present invention, and the present invention is not limited to the above embodiments , Anyone who has ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from these descriptions.

Accordingly, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the claims, as well as the claims described below, will fall within the scope of the spirit of the present invention. .

1: Underground buried firewood boiler combustion system according to the present invention
100: fuel supply
110: crane 120: transport body
200: fuel pushing unit
210: landfill housing 220: pushing member
230: sludge removal member
300: combustion section
310: 1st combustion path 320: 2nd combustion path
330: residence board
400: heat exchanger
500: combustion aid
510: press-fitting member 520: filtration equipment member
600: control unit
D: sludge B/L: interface
GT: Ground GU: Underground
W/P: Wood fuel

Claims (4)

A fuel supply unit 100 installed on the ground GT to provide wood fuel (W/P) necessary for combustion;
A fuel pushing unit 200 installed in the underground GU and providing wood fuel (W/P) supplied through the fuel supply unit 100 in one direction;
A combustion unit 300 for burning wood fuel (W/P) supplied through the fuel pushing unit 200 multiple times;
A heat exchange unit 400 provided in combination with the combustion unit 300 to exchange heat by waste heat generated by combustion;
Combustion auxiliary means 500 is connected to the combustion unit 300 to assist in the complete combustion in the combustion unit 300; And
Includes a control unit 600 for controlling at least one of the fuel supply unit 100, the fuel pushing unit 200, the combustion unit 300, the heat exchange unit 400 and the combustion auxiliary means 500 Ha,
The combustion unit 300 is installed in the underground (GU), the first combustion furnace equipped with a burner 311 to burn wood fuel (W/P) supplied through the fuel pushing unit 200 ( 310) and a second combustion furnace 320 installed to receive the combustion gas burned in the first combustion furnace 310 and secondary combustion of the combustion gas, but exposed to the ground (GT),
The combustion unit 300 including the first combustion furnace 310 and the second combustion furnace 320 in which the interiors communicate with each other retains the waste heat generated by combustion to secure the waste heat temperature at a set temperature. To enable the combustion unit 300, the upper side of the first combustion furnace 310 and the other side of the lower side of the second combustion furnace 320 have a structure connected to each other,
The fuel pushing unit 200 is buried in the underground GU so that the upper end is level with the boundary surface (B/L) of the ground GT, the first combustion furnace 310 having primary combustion therein. ) Is buried in the ground (GU) so that the second combustion furnace 320 is installed to support the buried housing 210 and the buried housing 210 so as to communicate with the combustion unit 300 inside. Primary combustion of wood fuel (W/P) by the burner 311 by supplying the wood fuel (W/P) supplied through the fuel supply unit 100 into the first combustion furnace 310. It includes a pushing member 220 that is installed to be made, the buried housing 210 prevents the pushing member 220 from being exposed to the outside, and at the same time, the fuel supply unit 100 can move. Provided, the movable plate 213 to selectively flow the wood fuel (W / P) supplied from the fuel supply unit 100 by the openable supply door 211 inside the pushing member 220 Contains,
The buried housing 210 is further provided with an anti-corrosion layer 215 for preventing corrosion, but the anti-corrosion layer 215 is an antioxidant layer that is adhered to the adhesive 215d applied to the outer surface of the buried housing 210 with a predetermined thickness. (215a), the anti-oxidation layer (215a) is deposited to a predetermined thickness on the outer surface of the buried housing 210 in the longitudinal direction of the plurality of spaces (S) is formed to be formed so that the volcanic crushed mineral layer (215b) and It includes a silicate mineral layer (215c) provided to have the same thickness as the volcanic crushed mineral layer (215b) provided in each of the space (S), the volcanic crushed mineral layer (215b) is Korea (for antibacterial effect SCORIA) and pumice (PUMICE), but it is possible to maintain the preservation of the micropore that the pumice and the pumice naturally have, and the silicate mineral layer 215c is tourmaline (TOURMALINE) to prevent foreign matter from adhering. ), cordierite (CORDIERITE), clinoptilolite (CLINOPTILOLITE) and šœGuit (SHUNGITE) is made of a mixture, the volcanic crushed mineral layer (215b) is the silicate mineral layer (215c) than the antioxidant layer (215a) ) An underground buried firewood boiler combustion system characterized by being applied with a wider width in the longitudinal direction.
According to claim 1,
The combustion auxiliary means 500
It is connected to the first combustion furnace 310 to supply oxygen necessary for combustion so that wood fuel (W/P) is directly burned by the burner 311, so that the combustion gas is completely burned and the combustion gas It is provided to communicate with the inside of the pressurized blower member 510 and the second combustion furnace 320 provided to maintain the oxygen concentration within the catalyst, but the catalyst is obtained by spraying urea water with nitrogen oxide (NOx) generated during combustion. An underground buried firewood boiler combustion system comprising a filtration facility member 520 that is provided so that harmless nitrogen (N2) can be discharged.
delete According to claim 1,
The pushing member 220
A loading plate 221 which is installed in parallel to have a predetermined gap under the moving plate 213, and which loads wood fuel (W/P) input through the supply door 211;
A pushing cylinder 225 which is reciprocally installed on one side of the loading plate 221 so as to face the first combustion furnace 310; And
The wood fuel (W/P) loaded on the loading plate 221 by the movement of the pushing cylinder 225, which is formed in a plate shape and is movably coupled by the pushing cylinder 225, to the first combustion (310) supply plate 227 to supply the inside; includes,
The supply plate 227 is an underground buried firewood boiler combustion system, characterized in that coupled to the pushing cylinder 225 in a diagonal shape to have a predetermined angle.

Images