KR20120076703A - Combustion apparatus of boiler using refuse derived fuel or refused plastic fuel - Google Patents

Abstract

PURPOSE: A combustion apparatus of a boiler using waste solid fuel is provided to reuse waste heat as heating or industrial hot water because the waste heat generated by the combustion of waste solid fuel is supplied to a boiler communicating with a secondary combustion chamber. CONSTITUTION: A combustion apparatus of a boiler using waste solid fuel comprises a supply part(10), a primary combustion chamber(20), a secondary combustion chamber(30), and an air supply part. The supply part comprises a hopper(11) for storing solid fuel and supplies the constant amount of the solid fuel with a screw. The primary combustion chamber comprises a burner to ignite and combust the supplied solid fuel and has an outlet(25) for discharging combusted ashes receiving in a right bottom part. The secondary combustion chamber is installed on the top of the primary combustion chamber and comprises a burner to perfectly combust combustion gas in the primary combustion chamber. The air supply part interposes a wind blower(40) in one side of the primary combustion chamber and comprises supply pipes for supplying air to the supply part and the primary combustion chamber.

Description

Combustion apparatus of boiler using refuse derived fuel or Refused Plastic Fuel}

The present invention relates to a combustion apparatus of a boiler, and more specifically, by adopting the waste solid fuel to be completely burned in multiple stages, it is utilized as an environmentally friendly alternative energy to prevent resource recycling and environmental pollution, and complete combustion The present invention relates to a combustion apparatus of a boiler using waste solid fuel, which can increase the stability of combustion and can significantly reduce pollutants, and can be used for hot water supply and heating using combustion heat to supply low-cost, high-efficiency energy.

In the process of modernization and modernization of the modern society, various environmental and industrial wastes have increased so that they face serious environmental pollution problems and are emerging as social problems, and various ways to solve these environmental pollution problems are being studied. . Therefore, in order to solve the environmental pollution problem, a method of separating and recycling the recyclable waste among various wastes and burning the non-recyclable waste to reduce its volume and at the same time reduce the pollution as a source of pollution. The incineration treatment method for this is typical.

Accordingly, in order to reduce energy efficiency and environmental pollution, various types of solid fuels (RDF: Refuse Derived Fuel, RPF: Refused Plastic Fuel) have been manufactured and fueled. Since solid fuels are mostly made of petrochemical products, it is known to produce high-efficiency thermal energy, and a method of recycling them as alternative fuels for boilers is emerging. Such solid fuels are currently being steadily studied in the field of alternative energy development.

As a method of utilizing the solid fuel, incineration (combustion) boilers are manufactured and used, and most of the incineration (combustion) furnaces use waste heat generated during the combustion process to recycle the heating or industrial hot water. Prior patents related to this include "continuous incineration boilers using RDF (solid fuel)" of Korean Patent Publication No. 2004-0107168, and "boilers using solid fuel" of Korean Utility Model Publication No. 20-0390958. Known.

Such a prior patent simply puts solid fuel into the combustion chamber and burns it, so that combustion air is not widely spread and supplied in the combustion furnace, so combustion air is not sufficiently mixed with solid fuel, resulting in low combustion efficiency and complete combustion. It is difficult to cause work problems, especially due to long-term combustion, which leads to costly operation and maintenance costs.

In addition, since the solid fuel is mainly composed of petrochemical products, the combustion efficiency is significantly reduced during combustion, and incomplete combustion results in a large amount of harmful gases, especially dioxin, which is significantly increased. There was a drawback that the air pollution was more aggravated than the economic benefits of securing thermal energy.

The purpose of the present invention for fundamentally improving the conventional problems as described above, by adopting the solid waste of waste fuel in a multi-stage, complete combustion, utilizing as an environmentally friendly alternative energy to prevent the recycling of resources and environmental pollution In addition, it is possible to increase the stability of combustion due to complete combustion, which can significantly reduce pollutants, and can be used for supplying hot water and heating by using combustion heat. I'm trying to provide.

In order to achieve the above object, the present invention provides a combustion apparatus of a boiler for burning waste solid fuel and recycling the waste solid fuel for heating or industrial hot water, comprising: a hopper for storing the solid fuel and screwing the solid fuel. Supply unit for supplying a predetermined amount by feeding; A primary combustion chamber having a burner for igniting and burning the solid fuel supplied by the supply unit, and having a discharge port for storing and discharging the burned ashes directly below; A secondary combustion chamber installed in communication with the upper portion of the primary combustion chamber and having a burner to completely burn the combustion gas in the primary combustion chamber; And an air supply unit installed at one side of the primary combustion chamber via a blower and having a supply unit supplying air to the supply unit and the primary combustion chamber.

At this time, the supply unit of the present invention, the hopper for storing the solid fuel, the casing for transporting the solid fuel by a screw connected to the motor in the lower portion of the hopper, and the coolant while supplying the solid fuel to the upper combustion chamber to the primary combustion chamber And a nozzle for supplying cooling water onto the cooling water circulation path to prevent the solid fuel supplied by the shooter from being melted and pressed.

In addition, the primary combustion chamber of the present invention is characterized in that it comprises a combustion plate consisting of a double mesh to extend and hold the heat source of the primary combustion chamber together with the dispersion plate for dispersing the solid fuel supplied by the supply unit.

In addition, the secondary combustion chamber of the present invention is characterized in that it comprises a fire plate to maximize the combustion efficiency by inducing the combustion gas to be introduced into a plurality of vents to complete combustion.

On the other hand, the terms or words used in the present specification and claims are not to be construed as limiting the ordinary or dictionary meanings, the inventors should use the concept of the term in order to explain the invention in the best way. It should be interpreted as meanings and concepts corresponding to the technical idea of the present invention based on the principle that it can be properly defined. Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, and various alternatives may be substituted at the time of the present application. It should be understood that there may be equivalents and variations.

As described in the above configuration and operation, the combustion apparatus of the boiler using the solid waste fuel according to the present invention adopts the waste solid fuel to be completely burned through the multi-stage, by using as an environmentally friendly alternative energy recycling and recycling of resources It prevents environmental pollution and increases the stability of combustion due to complete combustion, which can significantly reduce pollutants, and can be used for hot water supply and heating by using combustion heat to provide low cost and high efficiency energy.

1 is a perspective view showing a combustion device of a boiler according to the present invention.
Figure 2 is a block diagram showing a supply part of the main portion of the combustion apparatus according to the present invention.
3 is a block diagram showing a primary combustion chamber of the main parts of the combustion apparatus according to the present invention.
Figure 4 is a block diagram showing a secondary combustion chamber of the main portion of the combustion apparatus according to the present invention.
5 is an exemplary view showing an operating state of a combustion apparatus according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a combustion apparatus of a boiler according to the present invention, FIG. 2 is a configuration diagram showing a supply part among main parts of a combustion apparatus according to the present invention, and FIG. 3 shows a primary combustion chamber among main parts of a combustion device according to the present invention. 4 is a block diagram showing a secondary combustion chamber among the main parts of the combustion device according to the present invention, Figure 5 is an exemplary view showing an operating state of the combustion device according to the present invention.

The present invention relates to a combustion apparatus of a boiler (B) that burns waste solid fuel (RDF, RPF) and recycles it to heating or industrial hot water by using waste heat, and includes a supply unit 10, a primary combustion chamber 20, and a secondary The combustion chamber 30 and the air supply part have main components. At this time, although the primary combustion chamber 20 and the secondary combustion chamber 30 are not shown through drawings, they are made of refractory bricks to extend the residence time of heat and warmth therein. Combustion apparatus 1 is in communication with the boiler (B), that is, the secondary combustion chamber 30 is to be recycled as heating or industrial hot water through the waste heat generated by burning the waste solid fuel (RDF, RPF). The combustion device 1 automatically controls the main components, that is, the supply unit 10, the burners 21 and 31 of the primary and secondary combustion chambers, the blower 40, and the like by the control box C.

The supply unit 10 according to the present invention includes a hopper 11 for storing the solid fuels RDF and RPF, and supplies the solid fuels RDF and RPF with a predetermined amount by a screw 13. The supply unit 10 stores solid fuels RDF and RPF and supplies fuel to the primary combustion chamber 20. This is composed of a hopper 11 for storing the solid fuel (RDF, RPF) as shown in Figures 1 and 2 and a screw 13 for feeding a predetermined amount to the primary combustion chamber 20 to be described later.

At this time, the supply unit 10 of the present invention is a solid fuel (HDF) for storing the solid fuel (RDF, RPF) and the solid fuel (Screw 13 connected to the motor 12 in the lower portion of the hopper 11) A casing 14 for transferring RDF and RPF, and a shooter 15 through the cooling water circulation path while supplying solid fuel RDF and RPF to the primary combustion chamber 20 at the upper portion of the casing 14. . The supply unit 10 is composed of the hopper 11, the casing 14 and the shooter 15, the hopper 11 stores a certain amount of the solid fuel (RDF, RPF), and not shown through the drawings, but the impeller inside (Impeller) is attached to help the smooth supply of solid fuel. The casing 14 is installed in communication with the lower portion of the hopper 11 and transfers the solid fuels RDF and RPF to the upper side by the screw 13 receiving the driving force of the motor 12. The shooter 15 has a circulation path (not shown) for circulating the coolant while the inside is made of an empty hollow, and the upper part of the casing 14 and the primary combustion chamber 20 are installed in communication with each other, and the screw 13 The solid fuel (RDF, RPF) transferred by the) is supplied to the primary combustion chamber 20 by a predetermined amount.

At this time, the supply unit 10 of the present invention is to supply the coolant to the cooling water circulation path to prevent the solid fuel (RDF, RPF) supplied by the shooter 15 installed in the primary combustion chamber 20 is melted and pressed. The nozzle 16 is provided. The nozzle 16 receives coolant from the boiler B as shown in FIG. 1, which is connected to the coolant circulation path on the shooter 15 in the primary combustion chamber 20 as shown in FIGS. 2 and 5. Therefore, when the nozzle 16 is supplied from the shooter 15 to the primary combustion chamber 20 in which the solid fuels RDF and RPF are ignited, the solid fuel is melted and pressed by heat, thereby preventing the supply of fuel. Cooling water is supplied from the nozzle 16 to circulate along the cooling water circulation path of the shooter 15 to prevent the solid fuels RDF and RPF from melting and sticking, thereby smoothly supplying fuel.

In addition, the primary combustion chamber 20 according to the present invention includes a burner 21 to ignite and burn solid fuels RDF and RPF supplied by the supply unit 10, and burns ash burned directly below. A discharge port 25 for storing and discharging is provided. The primary combustion chamber 20 serves to burn solid fuels RDF and RPF supplied from the supply unit 10. 1 and 3, it is composed of a burner 21 for igniting and burning solid fuel (RDF, RPF) therein and an outlet 25 for storing the burned ash. In addition, the primary combustion chamber 20 has a door (not given a number) for confirming the combustion state on one surface as shown in FIG. 1, so that the lower outlet 25 is similarly collected to discharge the burned ash to the outside. A door (not shown) is installed.

At this time, the primary combustion chamber 20 of the present invention is to keep the heat source of the primary combustion chamber 20 with the dispersion plate 22 for dispersing the solid fuel (RDF, RPF) supplied by the supply unit 10 It is provided with a combustion plate 23 made of a double mesh extending. The primary combustion chamber 20 has a dispersion plate 22 and a combustion plate 23 therein, the dispersion plate 22 is a solid fuel (RDF, RPF) supplied from the supply unit 10 as shown in Figs. Dispersed evenly to make combustion smooth, and the remaining ash falls directly below. The combustion plate 23 is located in the upper part of the primary combustion chamber 20 as shown in FIG. 3 and is composed of a double mesh, which is a heat source of solid fuels RDF and RPF ignited by the burner 21. ) To extend the heat source to cool slowly.

In addition, the secondary combustion chamber 30 according to the present invention is installed in communication with the upper portion of the primary combustion chamber 20, and has a burner 31 to completely burn the combustion gas in the primary combustion chamber 20. . The secondary combustion chamber 30 serves to completely burn the combustion gas in the primary combustion chamber 20. 1 and 4, it is composed of a burner 31 for re-igniting the combustion gas to burn and the fire plate 35 to maximize the combustion efficiency. The secondary combustion chamber 30 is installed in communication with the upper portion of the primary combustion chamber 20.

At this time, the secondary combustion chamber 30 of the present invention is provided with a flame plate 35 to maximize the combustion efficiency by inducing the combustion gas to be introduced into the plurality of vent holes (35a) to complete combustion. The plate 35 is provided in a double inside the secondary combustion chamber 30, a plurality of vent holes (35a) is formed on the outer peripheral surface. The vent hole 35a serves to induce the flow of the combustion gas so that complete combustion proceeds. That is, when the heat source of the burner 31 contacts the fire plate 35 and the heat source stays, the combustion gas generated from the primary combustion chamber 20 flows into the plurality of vent holes 35a and passes through the fire plate 35. The combustion gas is burned again by the remaining heat source to ensure complete combustion. Therefore, the combustion gas of the solid fuel (RDF, RPF) is a complete combustion in multiple stages it is possible to significantly reduce the contaminants, especially dioxins (Dioxin) with the stability of the combustion.

In addition, the air supply unit according to the present invention is installed on one side of the primary combustion chamber 20 via the blower 40, the supply pipe 41 for supplying air to the supply unit 10 and the primary combustion chamber 20 45 is provided. The air supply unit serves to supply the air necessary for inducing the supply flow of the solid fuels RDF and RPF as well as the ignition and combustion in the primary combustion chamber 20. This is composed of a blower 40 for generating air and supply pipes 41 and 45 for supplying air, as shown in FIGS. The blower 40 is installed on one side of the primary combustion chamber 20 as shown in FIG. 1, and the supply pipes 41 and 45 communicate with the blower 40, respectively.

In this case, the supply pipe 41 is installed inside the primary combustion chamber 20 as shown in FIG. 3 to supply air for ignition and combustion of the solid fuels RDF and RPF, and the supply pipe 45 as shown in FIGS. 2 and 3. Located in the lower part of the shooter 15 of the supply unit 10 to supply air so that the solid fuel (RDF, RPF) is smoothly supplied without being clogged.

In operation through FIG. 5, first, the burner 31 of the secondary combustion chamber 30 is ignited and the preheating plate 35 is primarily preheated for a predetermined time to maintain an appropriate temperature, and then the motor of the supply unit 10 is operated. (12) is operated to supply solid fuel (RDF, RPF) to the primary combustion chamber (20). Of course, a certain amount of solid fuel (RDF, RPF) is stored on the hopper 11, by the screw 13 is supplied to the primary combustion chamber 20 by a predetermined amount by the shooter (15). At this time, the solid fuel (RDF, RPF) is uniformly dispersed by the internal dispersion plate 22 of the primary combustion chamber 20, the combustion is made smoothly, and the ash remaining after combustion falls directly below.

Subsequently, the burner 21 of the primary combustion chamber 20 is ignited to burn the solid fuels RDF and RPF, and then the burner 21 is stopped after a certain time. Then, the blower 40 is operated to supply air to the supply pipes 41 and 45, that is, the air necessary for ignition and combustion of the solid fuels RDF and RPF in the primary combustion chamber 20 and the solid fuel in the hopper 11. (RDF, RPF) supplies air to supply smoothly without clogging.

Subsequently, the combustion plate 23 located in the upper portion of the primary combustion chamber 20 extends so that the heat source of the solid fuels RDF and RPF ignited by the burner 21 is touched to stay in the heat source for a long time and gradually cool down. And the combustion gas generated from the primary combustion chamber 20 enters the secondary combustion chamber 30, which passes through the plurality of vent holes 35a of the flame plate 35, and passes through the flame plate 35 at this time. The combustion gas is burned again by the remaining heat source to achieve complete combustion. Therefore, the complete combustion of the combustion gas of the solid fuel (RDF, RPF) in multiple stages can significantly reduce the contaminants, especially dioxins (Dioxin) with the stability of the combustion.

And waste heat generated by burning the waste solid fuel (RDF, RPF) is supplied to the boiler (B) in communication with the secondary combustion chamber 30 can be recycled for heating or industrial hot water.

As described above, the combustion apparatus of the present invention utilizes waste solid fuel (RDF, RPF) in multiple stages of complete combustion to use as an environmentally friendly alternative energy to prevent the recycling of resources and environmental pollution, and the stability of combustion due to complete combustion. It can increase the pollutant significantly and can be used for the hot water supply and heating by using the heat of combustion can supply low cost high efficiency energy.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, such modifications or variations will have to belong to the claims of the present invention.

1: combustion apparatus 10: supply part
11: hopper 12: motor
13: screw 14: casing
15: Shooter 16: Nozzle
20: primary combustion chamber 21: burner
22: dispersion plate 23: combustion plate
25: outlet 30: secondary combustion chamber
31: Burner 35: Plate
35a: ventilator 40: blower
41,45: Supply line B: Boiler
C: control box RDF, RPF: solid waste fuel

Claims (4)

In the combustion apparatus of boiler (B), which burns waste solid fuel (RDF, RPF) and recycles it to heating or industrial hot water by using waste heat:
A supply unit (10) having a hopper (11) for storing the solid fuel (RDF, RPF), the solid fuel (RDF, RPF) being transported and supplied by a screw (13);
Primary having a burner 21 to ignite and burn the solid fuel (RDF, RPF) supplied by the supply unit 10, and having a discharge port 25 for storing and discharging the burned ash directly below Combustion chamber 20;
A secondary combustion chamber (30) installed in communication with the upper portion of the primary combustion chamber (20) and having a burner (31) to completely burn the combustion gas in the primary combustion chamber (20); And
An air supply unit provided at one side of the primary combustion chamber 20 via a blower 40 and having supply pipes 41 and 45 for supplying air to the supply unit 10 and the primary combustion chamber 20; Combustion apparatus of a boiler using waste solid fuel, characterized in that comprises a. The method of claim 1,
The supply unit 10 is a solid fuel (RDF, RPF) by a hopper 11 for storing the solid fuel (RDF, RPF), and a screw 13 connected to the motor 12 in the lower portion of the hopper (11). A casing 14 to be transferred, a shooter 15 through a cooling water circulation path while supplying solid fuels RDF and RPF to the primary combustion chamber 20 at an upper portion of the casing 14, and to the shooter 15. And a nozzle (16) for supplying cooling water onto the cooling water circulation path in order to prevent the solid fuels (RDF, RPF) supplied from being melted and pressed. The method of claim 1,
The primary combustion chamber 20 is a double net that extends by staying the heat source of the primary combustion chamber 20 with the dispersion plate 22 for dispersing the solid fuel (RDF, RPF) supplied by the supply unit 10. Combustion apparatus of a boiler using solid waste fuel, characterized by comprising a combustion plate 23 made of a sieve. The method of claim 1,
The secondary combustion chamber (30) of the boiler using a solid waste fuel, characterized in that the combustion gas is introduced into the plurality of vent holes (35a) and has a combustion plate 35 to maximize the combustion efficiency by completely burning. Combustion device.

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