WO2015080331A1

WO2015080331A1 - Stove using miscanthus sinensis pellets

Info

Publication number: WO2015080331A1
Application number: PCT/KR2013/011647
Authority: WO
Inventors: 고재룡
Original assignee: 해표산업 주식회사
Priority date: 2013-11-28
Filing date: 2013-12-16
Publication date: 2015-06-04

Abstract

The present invention relates to a stove using Miscanthus sinensis pellets, more specifically, comprising: a pellet storing/supplying portion which stores pellets inside the upper end of a main body on one side of a center portion, for supplying the pellets to a lower portion by means of gravity, according to control by a pellet discharge control plate, which is installed on the lower portion; a pellet combustion portion which is provided with an adjustable oxygen supply port on the front surface, a combustion material storage portion at the lower end, and which is provided at the lower end side in a direction perpendicular to the pellet storage/supply portion, so that the pellets dropped from the pellet storing/supplying portion are accumulated and combusted; a combustion gas circulation portion comprising, on the inside of the main body, a closed passage, so that heat and combustion gas generated when the pellets are combusted in the pellet combustion portion are circulated around the front surface and side surfaces of the main body, and then discharged through an exhaust port provided on the opposite side of the pellet combustion portion; and an exhaust blower, which is installed at the lower end of the exhaust port, for forcibly introducing outside air so that the combustion gas discharged from the combustion gas circulation portion is smoothly discharged through the exhaust port, wherein a conveyer-type movable grate capable of horizontal and rotational movement by means of driving force, according to a set time and cycle, is installed on the bottom surface of a combustion chamber in the pellet combustion portion, so that the combustion material and clinker can be automatically discharged to the combustion material storage portion at the bottom end.

Description

Stove for Pampas Pellet

The present invention relates to a pike pellet stove, and more particularly, to provide a pike pellet stove as a means for utilizing the pellets formed by using the pike as a heating material, smooth discharge of the burned pellets and combustion of the injected pellet It relates to a pike pellet stove to promote the heat efficiency of the pike pellets.

The development of alternative fuels using various natural resources is accelerating as a way to cope with the increase in the production cost of fossil fuels and the depletion of resources, and hybrid fuels that can be used with fossil fuels and new alternative fuels that can replace conventional fossil fuels. Many countries, companies and research institutes are involved in many researches.

In the case of fossil fuels, various researches and developments are being carried out depending on the necessity of developing new alternative energy as one of the main causes of global environmental destruction and global warming, and one of these alternative energy is applied to various forms of biomass that can be obtained from natural plants. There is a lot of research going on.

One of such a variety of biomass has been actively researched the usefulness of silver grass.

Pampas is a C4 photosynthetic plant, a perennial crop that produces more than other non-food energy crops and can be harvested for 15 to 20 years without tillage and sowing after planting, and when the stem begins to mature and die. When the nutrients of the stalks are transferred to the underground stems, they are mostly harvested as a raw material for biofuels.

The present invention relates to a pellet stove fueled by pellets produced for use as a fuel for heating, that is, a large horse, including the commonly known reed (Miscanthus sinensis), silver grass (Miscanthus sacchariflorus) and colossus, which have recently been developed by a domestic research institute as a fuel for bioenergy production, and have been widely used for mass production and its utilization. It can be seen that the study is ongoing.

The present inventors have conducted research on 'Development of Pellet Molding Conditions and Pellet Boiler Technology', which is a research project of the Rural Development Administration, and the development of pellet stoves that can efficiently use pellets and increase efficiency as fuel. Recognizing the necessity, the present invention has been devised.

In other words, pellets formed from giant silver grass have low melting point, which is a characteristic of giant silver grass, when they are put into pellet stove, they are not burned together because of sticking to each other during combustion, and oxygen is not properly supplied due to mutual entanglement. The problem of leaving a lot of pellet residues was found to be required to improve the conventional pellet stove has been proposed the present invention.

As a prior art related to the present invention, Korean Patent Registration No. 10-1093016 (Registration date: 2011.12.06, Name of the invention: mass bloom method of silver grass), Korean Patent Publication No. 10-2013-0077694 (Publication date: 2013.07.09 , Name of invention: Pampas grass plants, Korean Patent Registration No. 10-1290404 , Pellet Stove) has been devised.

The present invention has been devised to solve the problems occurring during combustion after molding a large silver grass into fuel pellets, to increase the combustion efficiency of the pellets to secure energy of high calorific value, as well as to induce complete combustion to further improve the utilization efficiency of the pellets. The purpose is to provide a pike pellet stove that can be increased.

In order to achieve the above object, a pellet storage stove according to the present invention is a pellet storage supply unit for supplying pellets to the lower portion by gravity under the control of the pellet discharge control plate installed in the lower portion of the main body inside the upper end of the central portion ; An adjustable oxygen supply port is provided on the front surface, and a combustion material storage unit is provided at a lower end thereof, and a pellet combustion unit is provided at a vertical lower end side of the pellet storage supply unit such that pellets dropped from the pellet storage supply unit are accumulated and burned; The combustion gas circulation having the movement path closed inside the main body so that the heat and the combustion gas generated during the combustion of the pellet in the pellet combustion unit circulates the front and side of the main body and is discharged to the exhaust port provided on the opposite side of the pellet burning unit part; And a blower installed at a lower end of the exhaust port so as to smoothly discharge the combustion gas discharged from the combustion gas circulation unit through the exhaust port, and forcibly introducing external air to the combustion chamber bottom surface according to a set time and period. A conveyor-type mobile grate, which is horizontally moved and rotated by power, is installed to automatically discharge the combustion material and the clinker to the lower combustion material storage unit.

In particular, the outer wall of the front and side of the main body forming the combustion gas circulation portion has a structure in which a plurality of air inlet hole through which the outside air flows into the combustion gas circulation portion.

In addition, the movable grate is horizontally spaced apart from the left and right by a pair of drive sprockets are connected to the pair of drive sprockets in a horizontally spaced distance from the drive sprockets so as to be idle driven to be installed at the same height as the drive sprockets. The rotation is made by a pair of driven sprockets, the rotation axis of the drive sprocket is configured to rotate by receiving power from the power generation and the drive unit installed on one side of the main body to protrude a certain length of the main body.

The pike pellet stove according to the present invention described above is equipped with a mobile grate in which the bottom plate of the combustion chamber is moved and rotated, and oxygen supply is blocked due to the clinker shape in which pike shaped pellets having a relatively low melting point stick to each other during combustion. Therefore, it is possible to solve the disadvantage that the complete combustion of the pellets is not possible to increase the usability and energy efficiency of the aviary pellets, there is a useful effect to reduce the unburned exhaust gas.

1 and 2 are an external perspective view and a front view of a stove for a silver grass pellets according to the present invention;

3 and 4 is a side cross-sectional view and a rear cross-sectional view of the stove for the Pavilion pellet according to the present invention,

Figure 5 is a schematic diagram showing a combustion gas circulation process of the stove for Pavilion pellet according to the present invention,

6 is an extractive perspective view of a mobile grate according to the present invention, the power generation and driving unit for transmitting power to the mobile grate.

Hereinafter, with reference to the accompanying drawings in the description will be described in more detail the technical features of the stove for Pavilion pellet according to the present invention.

1 and 2 illustrate an appearance perspective and a front view of a stove 100 for a silver grass pellet according to the present invention.

As shown in Figures 1 and 2, according to the present invention, the Pavilion pellet stove 100 according to the present invention is not limited to any particular shape, but in the embodiment shown in the figure shows an embodiment consisting entirely of a rectangular parallelepiped shape. .

Pavement pellet stove 100 of the present invention is provided with a pellet storage supply unit 20 so that the pellet is stored on the upper side of the main body 10 relative to the main body 10 in the center to be naturally dropped downward by gravity The inside of the main body 10, the pellet combustion section 30 is provided with a combustion chamber 31 for burning the dropped pellets, and the hot and hot combustion gas generated during the pellet combustion in the pellet combustion section 30 Circulates the combustion gas from the combustion chamber 31 to the exhaust port 55 provided with the main body 10 on the other side so that the main body 10 is discharged after releasing heat while circulating the closed passage for a certain period. The part 50 is formed.

An upper surface of the combustion gas circulation unit 50 is formed to have a flat cross section so that a water kettle or the like is placed on the upper surface of the combustion gas circulation unit 50 to heat water and the like by using the released heat, and to the lower side of the main body 10. A support part 70 for stably supporting the main body 10 is formed at a predetermined height, and at least one outside air inlet hole 54 is formed in the side or upper surface of the combustion gas circulation part 50 to circulate the combustion gas. The combustion gas exiting through the unit 50 is configured to be smoothly discharged.

On the other hand, the pellet storage supply unit 20 provided to the rear side of the main body 10 is the pellet storage supply unit 20 and the pellet combustion unit 30 to adjust the supply amount of the pellets supplied to the pellet combustion unit 30 The pellet discharge control unit 22 is provided at an intermediate position therebetween.

The pellet discharge control unit 22 is horizontally installed in the middle of the passage through which the pellet is dropped, and a through hole having a predetermined size is formed in the flat discharge control plate 24 so that the amount of pellet drop can be adjusted according to the user's operation. According to the operation of the sliding structure made of a structure capable of entering and exiting the pellet drop passage.

In addition, an exhaust port 55 through which the exhaust gas discharged through the pellet combustion unit 930 and the combustion gas circulation unit 50 is discharged to the outside is formed at a predetermined height to one side of the pellet discharge control unit 22.

3 and 4 illustrate one side cross section and a rear cross section, respectively, for explaining the internal configuration of the aviary pellet stove 100 according to the present invention.

3 is a cross-sectional view schematically illustrating a combustion chamber 31 structure of the pellet combustion unit 30 provided in the central portion of the main body 10.

The combustion chamber 31 is formed to have a space portion of a predetermined height so that combustion occurs in a state in which pellets dropped from above are accumulated at a predetermined height, and in the drawing, an oxygen supply port (not shown) is provided with oxygen from the outside of the combustion chamber 31. 32 is formed and is configured to improve the combustion efficiency of the pellets as the oxygen introduced from the outside into the combustion chamber 31, the high temperature heat and combustion gas generated during pellet combustion in the combustion chamber 31 is a drawing In the combustion gas circulation section 50 provided to the right of the combustion chamber 31 is entered.

As shown in the drawing, a movable grate 35 is installed at the bottom of the combustion chamber 31 so that pellets dropped on the upper surface of the movable grate 35 are stacked to burn, and the movable grate 35 is oxygenated. Rotation is made while moving toward the combustion gas circulation part 50 in the direction in which the supply port 32 is formed, and pellets are burned on the upper surface of the movable grate 35 and the remaining combustor and clinker are rotated with the movable grate 35. In addition, it is configured to be dropped and stored in the combustion ash storage unit 40 installed below.

The movable grate 35 is moved and rotated by a rotating device composed of a chain and a sprocket, that is, a rotating chain 39 installed between the driving sprocket 37 and the idle sprocket 38, and the driving sprocket ( As shown in FIG. 4, the rotation shaft 36 of the 37 is rotated by the rotational force of the driven sprocket 68 provided at the tip protruding a predetermined length outward of the main body 10.

The driven sprocket 68 is configured to be coupled to the main drive sprocket 64, which receives the rotational force from the power generating means installed inside the support part 70, with a connection chain 66 to transmit power.

In addition, as shown in Figure 4, the other side of the main body 10, the combustion chamber 31 is installed, the exhaust port 55 is formed through the upper portion from the lower support portion 70 of the main body 10, the exhaust port ( At the lower end of the main body 10, an exhaust fan 56 is installed to forcibly suck outside air from the outside of the main body 10 and blow the air upward in the exhaust port 55. The high temperature heat and the combustion gas discharged from the combustion chamber 31 are Through the combustion gas circulation unit 50 is introduced into the central portion of the exhaust port 55 is discharged to the outside of the main body 10 through the exhaust port 55.

Further, below the movable grate 35 of the combustion chamber 31, a combustion ash storage part 40 is provided in which a combustion material of pellets or a clinker, which is a residue of the pellets, is dropped and stored, and the combustion ash storage part ( 40 is provided with a discharge tray 42 that can be pulled out of the main body 10 is configured to discharge the ash and the like accumulated in the discharge tray 42 to the outside.

5 is a plan view briefly illustrating a process of discharging heat and combustion gas from the high temperature generated when the pellets are burned in the stove 100 for the Pavilion pellets according to the present invention.

As shown in FIG. 5, the hot gas and the combustion gas generated as the pellets are burned in one pellet combustion unit 30 of the main body 10 are opened to one side of the combustion chamber 31. The hot heat and the combustion gas introduced into the combustion gas circulation unit 50 is heated to the heat exchange with the outside while temporarily staying inside the combustion gas circulation unit 50, and the pellets are continuously introduced as the pellets are burned. The combustion gas flows along the sealed inner passage of the combustion gas circulation unit 50 and then circulates toward the exhaust port 55 provided in the other direction of the main body 10.

Since the exhaust port 55 is a state in which outside air is introduced by the exhaust fan 56 during pellet combustion, and an updraft is formed, the combustion gas circulated to the exhaust port 55 is discharged together with the outdoor air introduced by the exhaust fan 56. 55) It moves upwards and is discharged to the outside.

On the other hand, Figure 6 is a mobile grate 35 is installed in the pellet burner 30 of the Pavilion pellet stove 100 according to the present invention, and the power generating and driving unit 60 for transmitting power to the mobile grate 35 Is an excerpt.

The movable grate 35 installed at the bottom of the combustion chamber 31 of the pellet combustion unit 30 is a place where pellets are stacked and combusted, and is preferably made of a metal material having high durability at high temperature and high temperature, and in the form of a plurality of joints. A plurality of grate having a predetermined constant width and length are connected in an endless track structure and installed in a rotatable structure at the lower side of the combustion chamber 31.

The movable grate 35 is installed between a pair of drive sprockets 37 and a pair of idle sprockets 38 installed at predetermined intervals on the left and right sides by a rotational force transmitted to the drive sprocket 37 by a predetermined speed or It is configured to be rotatable while moving horizontally at periodicity.

The rotating shaft 36 of the driving sprocket 37 is formed so that one end portion of the rotating shaft 36 extends outward of the main body 10, and a driven sprocket 68 having a diameter of a predetermined size is installed at the end of the rotating shaft 36. It is connected to the main drive sprocket 64 installed in the power generating and driving unit 60 installed on the lower side of the main body 10 by a connection chain 66 is made to rotate.

The power generating and driving unit 60 installed in the lower inner side of the main body 10 is configured to be capable of driving and speed adjustment by operation of a control operation unit (not shown) provided separately, and generally, a reduction geared motor 62. Using to generate power, the main drive sprocket 64 is connected to the rotary shaft of the reducer geared motor 62 is installed.

In addition, the main drive sprocket 64 and the driven sprocket 68 has a difference in diameter so that the rotational force generated in the reducer geared motor 62 is decelerated at a constant ratio, thereby powering the drive sprocket 37 for driving the movable grate 35. The delivery is configured to take place.

Although the configuration of the power generating and driving unit 60 shown in the embodiment of the present invention consists of a sprocket and a chain, the driving and power can be transmitted using other power transmission means, the movable grate 35 The movement and rotation means of the other power transmission method may be adopted, but when installed in a way using a chain and a sprocket there is an advantage that can transmit power reliably.

Claims

A pellet storage supply unit for storing pellets inside the upper end of the main body of the central part and supplying the pellets to the lower part by gravity according to the control of the pellet discharge control plate installed in the lower part; An adjustable oxygen supply port is provided at the front side, and a combustion material storage unit is provided at a lower end thereof, and a pellet combustion unit is provided at a vertical lower end side of the pellet storage supply unit such that pellets dropped from the pellet storage supply unit are accumulated and burned; The combustion gas circulation having the movement path closed inside the main body so that the heat and the combustion gas generated during the combustion of the pellet in the pellet combustion unit circulates the front and side of the main body and is discharged to the exhaust port provided on the opposite side of the pellet burning unit part; And a blower installed at a lower end of the exhaust port so as to smoothly discharge the combustion gas discharged from the combustion gas circulation unit through the exhaust port.

The bottom surface of the combustion chamber of the pellet combustion unit is provided with a conveyor-type mobile grate that moves horizontally and rotates according to a set time and period so as to automatically discharge the combustion material and the clinker to the lower combustion material storage unit. Stove for Pampas Pellet.
The method of claim 1,

On the outer wall of the front and side of the main body forming the combustion gas circulation portion is a pigeon pellet stove characterized in that a plurality of outside air inlet hole through which the outside air can be introduced into the combustion gas circulation portion.
The method according to claim 1 or 2,

The movable grate is a pair of drive sprockets horizontally spaced apart from the left and right by a predetermined distance, a pair is installed at the same height as the drive sprocket spaced apart from the drive sprocket by a certain distance so as to be idle driven by a chain to the pair of drive sprockets Rotation is achieved by the idle sprocket

The rotating shaft of the drive sprocket is a prolonged pellet stove, characterized in that configured to rotate by receiving power from the power generation and the drive unit installed on the lower end of the main body protruding.