WO2011071222A1

WO2011071222A1 - Incinerating device

Info

Publication number: WO2011071222A1
Application number: PCT/KR2010/004439
Authority: WO
Inventors: 박재선
Original assignee: 본스틸산업 주식회사
Priority date: 2009-12-10
Filing date: 2010-07-08
Publication date: 2011-06-16
Also published as: KR100938555B1

Abstract

The present invention relates to an incinerating device able to improve combustion efficiency by supplying air for combustion as a vortex to a first combustion unit having a double structure so as to facilitate the inflow of the combustion air, and moving the dust and combustion gasses produced after the combustion and then re-combusting the same in a second combustion unit. The present invention comprises: a combustion device (B) for the combustion of waste which has been introduced, comprising a first combustion furnace (1) provided at the bottom part and a second combustion furnace (2) provided connected through to the upper part of the first combustion furnace (1); a collecting device (C) for collecting the combustion gas produced in the combustion device (B); and a duct (D) for establishing a through connection between the combustion device (B) and the collecting device (C); wherein the first combustion furnace (1) has a double structure consisting of an outer tubular body (11) and an inner tubular body (14), and comprises a blower unit (3), at the bottom part of which are fitted an air-forwarding tube (362) and an air-forwarding fan (36) in an inclined fashion, the inner circumferential surface of which is circumferentially provided with a plurality of baffle plates (323), and the upper surface of which is rotatably provided with an impeller (34) for the purpose of agitation.

Description

Incinerator

The present invention relates to an incineration apparatus, and more particularly, by supplying combustion air in a vortex method to the primary combustion unit having a dual structure to facilitate the inflow of combustion air to move the dust and combustion gas generated after combustion. The present invention relates to an incineration apparatus capable of improving combustion efficiency by reburning in a secondary combustion unit.

Generally, waste, especially medical waste, is disposed of by landfill or incineration. However, landfill has a problem of soil pollution and lack of landfill, and incineration methods are being studied in various ways.

Incineration can easily handle waste, but a serious problem occurs that harmful gases such as nitrogen oxides and dioxins in the exhaust gases generated during incineration pollute the atmosphere.

Accordingly, various methods for minimizing the generation of harmful gas components and reducing maintenance costs have been proposed by adding an incineration unit for incineration of waste and a dust collecting unit for treating dust and harmful components of exhaust gas generated after incineration.

The conventional incinerator adopts a method of directly supplying air to the combustion chamber by connecting the discharge pipe of the blower to the inside of the combustion chamber formed of refractory or by supplying a plurality of nozzles to supply the required air to the combustion chamber.

However, at this time, it is not easy to control the amount of air required during combustion, there was a problem that incomplete combustion occurs.

Due to such incomplete combustion, pollutants such as combustion gases including ash and dust are generated, and these pollutants are scattered to the atmosphere, causing a problem of environmental pollution.

The present invention has been made to solve the above problems of the prior art, it is possible to smoothly inject the air required for the combustion of waste, especially medical waste to achieve a complete combustion to prevent the generation of pollutant source, discharge It is an object of the present invention to provide an incineration apparatus capable of restraining the waste end emitted from the pollutant to the atmosphere by burning the combustion gas again.

In addition, the present invention is composed of a double structure of the inner cylinder and the outer cylinder, the air is injected through the space between the inner / outer cylinder, the air can be injected quickly and uniformly from the bottom to the top by vortex generation, in particular into the inner cylinder Another object is to provide an incineration apparatus which allows direct air input to allow complete combustion by sufficient air supply.

In addition, the present invention is to form a plurality of nozzle holes to enable the air to be injected into the wall surface of the inner cylinder, by improving the shape of the nozzle hole by injecting the injected air is injected to the deeper portion of the furnace by supplying There is another purpose to provide.

An object of the present invention as described above, in the incinerator comprising a combustion device for burning the input waste, a dust collecting device for collecting the combustion gas generated in the combustion device and a duct connecting the combustion device and the dust collecting device, The combustion apparatus includes a first combustion furnace in the lower part and a second combustion furnace installed in communication with the upper part of the first combustion furnace, wherein the first combustion furnace has an inlet on one side and a re-discharge port on the lower side. It is formed, the burner is mounted on the other side, the outer cylinder having a space therein, and inserted into the outer cylinder and spaced apart from the inner wall of the outer cylinder at regular intervals, and installed to communicate with the inlet and ash outlet, burner The inner space is provided with a space for accommodating waste, and a plurality of guide projections are formed vertically on the outer wall surface, and is installed at the lower portion of the outer cylinder and the inner cylinder, and the disc portion and its outer periphery. Consists of side walls formed at the bottom, a space is formed therein, the side wall can be deflected to be achieved by the incinerator consisting of a flue and the air supply fan is mounted ventilation unit.

The second combustion furnace includes an outer cylinder having an air blower mounted on an upper portion of one side and an auxiliary burner mounted at a lower portion thereof, and an inner cylinder disposed to be spaced apart from the inside of the outer cylinder, and having a passage communicating with the connecting pipe passage. Characterized in that.

The air supply pipe of the blowing unit to the first combustion furnace is characterized in that the air supplied is installed in the tangential direction of the circle to form a vortex.

The blower to the second combustion is characterized in that the air supplied in the tangential direction of the circle to form a vortex.

The blowing unit has a plurality of through-holes are formed in the disc portion, a plurality of baffle plate is installed in the circumferential direction on the inner circumferential surface of the side wall, the baffle plate is characterized in that it is installed inclined to comply with the air flowing through the air pipe.

The inner cylinder of the second combustion furnace is composed of a cylindrical fireproof furnace having a constant thickness and an outer plate material attached to an outer surface of the fire furnace, and a plurality of nozzle holes penetrating the outer plate member and the fire furnace are formed, The nozzle hole is characterized in that the conical shape is smaller in diameter from the outside to the inside.

According to the present invention it is possible to smoothly inject the air required for combustion to achieve a complete combustion to prevent the generation of pollutant source, and to burn the discharged combustion gas again to suppress the waste end discharged to the atmosphere as much as possible. It can be effective.

In addition, by supplying the air supplied to the combustion unit in the form of a vortex, the air can be injected uniformly and quickly from the bottom to the top, and the air can be directly injected into the inner cylinder. have.

1 is a perspective view showing an incineration apparatus according to the present invention,

Figure 2 is an exploded perspective view of the 'first combustion furnace' of the incineration apparatus according to the present invention,

Figure 3 is a side cross-sectional view showing a coupling state to the 'first combustion furnace' of the incineration apparatus according to the present invention,

Figure 4 is a cross-sectional view showing a coupling state to the 'first combustion furnace' of the incineration apparatus according to the present invention,

5 is a bottom view of the 'blowing unit' of the 'first combustion furnace' of the incineration apparatus according to the present invention.

6 is an exploded perspective view of a 'second combustion furnace' of the incineration apparatus according to the present invention;

Figure 7 is a side cross-sectional view showing a coupling state to the 'second combustion furnace' of the incineration apparatus according to the present invention,

Figure 8 is a plan sectional view showing a coupling state to the 'second combustion furnace' of the incineration apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

1: 1st combustion furnace 2: 2nd combustion furnace

3: blower unit 11: outer cylinder

12: inlet 13: ash outlet

14; Inner tube 15: Guide protrusion

16: burner 20: auxiliary burner

22: outer cylinder 24: inner cylinder

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

1 is a perspective view showing an incineration apparatus according to the present invention.

As shown in FIG. 1, the incineration apparatus A which concerns on this invention is the combustion apparatus B which combusts the thrown-in garbage, the dust collector C which collects the combustion gas produced by the said combustion apparatus B, and It consists of a duct (D) connected through the combustion device (B) and the dust collector (C).

The combustion apparatus B is comprised from the 1st combustion furnace 1 provided in the lower part, and the 2nd combustion furnace 2 provided in communication with the upper part of the said 1st combustion furnace 1, and.

Figure 2 is an exploded perspective view of the 'first combustion furnace' of the incinerator according to the present invention, Figure 3 is a side cross-sectional view showing a coupling state to the 'first combustion furnace' of the incinerator according to the present invention, Figure 4 Fig. 5 is a bottom sectional view of the blower unit of the first combustion furnace of the incineration apparatus according to the present invention.

As shown in FIGS. 2-5, the 1st combustion furnace A of the incineration apparatus which concerns on this invention consists of a dual structure which consists of the outer cylinder 11 and the inner cylinder 14. As shown in FIG.

That is, the first combustion furnace 1, the inlet 12 is formed on one side and the ash outlet 13 is formed on the lower side, the burner 16 is mounted on the other side, the cylindrical outer cylinder having a space therein (11), and inserted into the outer cylinder 11 and spaced apart from the inner wall of the outer cylinder 11 at regular intervals, and installed to communicate with the inlet 12 and the burner 16, the waste inside The space accommodated is provided and consists of the cylindrical inner cylinder 14 in which the several guide protrusion 15 was formed perpendicularly to the outer wall surface.

In addition, the first combustion furnace 1 is further provided with a ash outlet 13 for discharging ash.

The inner cylinder 14 has a smaller diameter than the outer cylinder 11, and when inserted into the outer cylinder 11, a space 10 is formed between the outer wall surface and the inner wall surface of the outer cylinder 11.

Therefore, the air supplied from the lower portion through the space 10 can be moved.

In addition, a plurality of air holes 140 are formed on the side wall of the inner cylinder 14. The plurality of air vents 140 may be formed at random, but are preferably arranged to be straight in the vertical direction.

In this way, the air supply holes 140 may be aligned with the guide protrusions 15 by being arranged in the vertical direction, and the air supply holes 140 may be covered by the guide protrusions 15, but when the air flows, the upper end of the guide protrusions 15 may be observed. It is introduced into the inside through it is possible to move to the inside of the inner cylinder 14 through the air supply hole 140.

The refractory is applied to the outer circumferential surface of the inner cylinder 14 to a predetermined thickness to form a fireproof furnace.

In addition, the upper opening of the inner cylinder 14 of the first combustion furnace 1 is rapidly reduced in diameter to form a donut-shaped barrier wall 145 having an opening 144 smaller in diameter than the inner cylinder 14. do.

The blocking wall 145 is formed to have a diameter of 1/2 or more of the diameter of the inner cylinder 14 so as not to disturb the air flow therein, and preferably made of refractory material.

The purpose of forming the blocking wall 145 is to allow the incompletely burned air to be blocked by the lower part of the blocking wall 145 to be recycled down again and burned again.

That is, since the flame of the burner 16 is installed to be the highest temperature in the center of the first combustion furnace, the combustion gas completely burned in the center rises directly to the second combustion furnace 2 through the opening hole 144. .

On the other hand, since the periphery of the inner cylinder 14 is relatively out of the center of the flame, incomplete combustion occurs, and thus the incompletely burned combustion gas rises and is blocked by the blocking wall 145 to descend and circulate again to induce complete combustion. have.

The guide protrusion 15 is a metal piece having a predetermined length is bent in a cross-section "∧" shape to have an inner passage 152, the lower end is opened, the inner passage 152 is in the vent hole 140 It is installed to communicate.

That is, the upper end of the guide protrusion 15 is blocked and the lower end is opened so that some of the air supplied from the blowing unit 3 is introduced into the guide protrusion 15 through the lower opening, and then the air vent 140 is opened. It can be supplied to the inner cylinder 14 through.

In addition, the first combustion furnace 1 is composed of a disc portion 32 and a side wall formed below the outer circumferential surface thereof, and a space is formed therein, and the air pipe 362 and the air supply fan 36 are deflected on the side wall. It further comprises a blower unit (3) mounted to be installed at the lower portion of the outer cylinder (11) and the inner cylinder (14).

In particular, the blower pipe 362 of the blower unit 3 is deflected, that is, installed in the tangential direction of the circle so that the supplied air forms a vortex.

That is, the air introduced through the air pipe 362 moves upward through the space 10 between the outer cylinder 11 and the inner cylinder 14 while forming vortices on the inner wall of the blower unit 3. In this air, the air close to the outer wall surface of the inner cylinder 14 is separated by a predetermined amount by the guide protrusion 15 and moved upward, and is re-introduced through the inner passage 152 of the guide protrusion 15 to be blown. It is introduced into the inner cylinder 14 through the hole 140 to assist in promoting combustion.

The burner 16 of the first combustion furnace 1 is installed symmetrically on both sides, and the firing point is installed to face the center so that the incineration efficiency can be improved by concentrating the flame, and the loss of thermal energy can be minimized. have.

The blowing unit 3 has a plurality of through holes 320 are formed in the disc portion 32, a plurality of baffle plate 323 is installed in the circumferential direction on the inner circumferential surface of the side wall, the baffle plate 323 is an air pipe ( It is installed to be inclined to comply with the air flowing through the 362.

That is, the baffle plate 323 guides a part of the air introduced through the air pipe 362 to the deep part, so that the air is not rotated in only one direction, but part is dispersed, and the through hole 320 of the disc part 32 is directly at the deep part. This creates a condition that can be transported upwards through.

In addition, an impeller 34 for agitation is rotatably installed on the upper surface of the disc part 32 of the blower unit 3 to induce uniform air inflow and flame contact so that waste incineration can be more easily incinerated.

The impeller 34 is installed in close contact with the upper surface of the disc portion 32, a shaft pin coupled to the disc portion 32 is formed at the center lower portion, and is composed of a drive unit 343 for rotating the shaft pin.

As an example of the configuration of the drive unit 343, a sprocket arranged on the shaft pin, and a motor connected to the sprocket and the chain will be common, but is not necessarily limited thereto.

On the other hand, a plurality of protrusion plates 146 are further formed on the lower inner circumferential surface of the inner cylinder 14 of the first combustion furnace 1.

The protruding plate 146 is installed to prevent excessive rotation of the waste introduced by the rotation of the impeller 34, and is preferably formed to be inclined toward the rotation direction.

*

6 is an exploded perspective view of a 'second combustion furnace' of the incineration apparatus according to the present invention, Figure 7 is a side cross-sectional view showing a coupling state to the 'second combustion furnace' of the incineration apparatus according to the present invention, Figure 8 is A cross-sectional view showing a coupling state of the incinerator according to the present invention to the 'second combustion furnace'.

As shown in FIGS. 6 to 8, the second combustion furnace 2 burns again the unburned gas, particulates, residues, etc., which are burned in the first combustion furnace 1 and then transferred to the upper portion by the heat airflow. For the purpose of, look at the configuration, the blower 225 is mounted on the upper side of one side, the outer cylinder 22, the auxiliary burner 20 is mounted on the bottom; The inner cylindrical body 24 is provided to be spaced apart from the inside and has a passage formed therein so as to communicate with the first combustion furnace 1.

The outer cylinder 22 has a cylindrical shape having an upper and a lower opening, and a donut-shaped disk 221 is attached to each of the upper and lower ends thereof, and an injection hole 223 to which the blower 225 is mounted is formed at a side surface thereof.

In particular, the injection port 223 is installed to be deflected so that the blower 225 mounted to the outer cylinder 22 can be installed in the tangential direction of the circle.

This is to allow the air supplied as described above to form a vortex so that it can be more quickly and evenly distributed and moved through the space between the inner cylinder 24 and the outer cylinder 22.

The inner cylinder 24 of the second combustion furnace 2 is a cylindrical fireproof furnace 242 having a constant thickness, and an outer plate member attached to the outer surface of the fireproof furnace 242 and having flanges formed on upper and lower sides thereof ( 243, a plurality of nozzle holes 244 penetrating through the outer plate member 243 and the fireproof passage 242 are formed in a plurality of side surfaces.

In particular, the nozzle hole 244 is formed in a conical shape that decreases in diameter from the outside to the inside, so that the flow rate of the air flowing through the nozzle hole 244 is increased by the Venturi effect to the deep part of the refractory furnace 242. Sufficient air injection was made possible.

This leads to complete combustion of even particulates such as dust, so that the combustion efficiency can be increased and fuel can be saved.

In addition, the auxiliary burner 20 of the second combustion furnace 2 is also installed such that the firing point is toward the center. The advantages obtained thereby have been described in the burner 16 of the first combustion furnace 1, and thus redundant description is omitted.

In addition, the inner cylinder 24 of the second combustion furnace 2 is further formed with a donut-shaped barrier wall 245 having an opening hole 243 having a small diameter at the upper end thereof. The blocking wall 245 has the same configuration as the blocking wall 145 of the first combustion furnace 1, and since it has been described above, duplicate description thereof will be omitted.

Meanwhile, the dust collector C of the present invention may be a known cyclone dust collector, but is not necessarily limited thereto.

The duct (D) is a passage for transferring the combustion gas transferred from the second combustion furnace (2) to the dust collector (C), and on the inner circumferential surface there is formed a fireproof layer coated with a refractory to a predetermined thickness for insulation.

Hereinafter will be described the operation of the incinerator according to the present invention.

The waste is introduced through the inlet 12 of the first combustion furnace 1 and then sealed, and the burner 16 is ignited.

In addition, while the air generated by operating the blower 36 of the blower unit 3 forms a vortex, most of the air flows directly into the inner cylinder 14, and a part of it is between the outer cylinder 11 and the inner cylinder 14. After moving through the space (10) of the guide protrusions 15 through the inner opening via the air supply hole 140 through the inside to be introduced into the inner cylinder (14).

Heat generated on the surface of the inner cylinder 14 is recovered along with the flow of air to the air supply hole 140 through the guide protrusion 15, and the space 10 between the outer cylinder 11 and the inner cylinder 14. The flow of air through) forms a thermal insulation film that prevents heat loss.

Thus, unburned gas including fine residues and dust generated after combustion in the first combustion furnace 1 flows directly into the second combustion furnace 2.

The material introduced into the second combustion furnace 2 is burned again by the ignition operation of the auxiliary burner 20.

In addition, the air blown by the blower 36 of the second combustion furnace 2 is moved while forming a vortex through the space between the outer cylinder 22 and the inner cylinder 24, the fire through the nozzle hole 244 242 is injected into the interior.

That is, the nozzle hole 244 induces a venturi effect, so that the accelerated inflow of air can be introduced to the core of the refractory furnace 242.

This leads to complete combustion of fine residues and dust of unburned gas.

Afterwards, the generated smoke is collected by the dust collecting device C, and the particles having some weight are collected downward, and only the final gas is discharged to the outside through the stack.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, all such modifications and modifications being attached It is obvious that the claims belong to the claims.

Claims

A combustion device (B) comprising a first combustion furnace (1) disposed below and a second combustion furnace (2) installed in communication with an upper portion of the first combustion furnace (1); Dust collector (C) for collecting the combustion gas generated in the combustion device (B); And a duct (D) connecting the combustion device (B) and the dust collector (C) to communicate with each other.

The first combustion furnace 1,

An inlet 12 is formed at one side, a burner 16 is mounted at the other side, and an outer cylinder 11 having a space therein;

Is inserted into the outer cylinder 11 and spaced apart from the inner wall of the outer cylinder 11 at a predetermined interval, the inlet 12 and the burner 16 is installed to pass through, there is a space for receiving waste therein Inner cylinder 14;

Comprising a disk portion 32 and a side wall formed below the outer circumferential surface, a space is formed therein, and the air pipe 362 and the air blower fan 36 are mounted on the side wall so as to be deflected so that the outer cylinder 11 and the inner side A blowing unit 3 installed at a lower portion of the cylinder 14;

Incinerator comprising a.
The method of claim 1,

A plurality of air vents 140 are formed on the side wall of the inner cylinder 14, and a plurality of guide protrusions 15 are vertically formed on the outer wall surface.

The guide protrusion (15) is an incinerator, characterized in that the cross section is "∧" shape to have an inner passage 152, the inner passage 152 is installed to communicate with the air supply hole (140).
The method of claim 1,

The blower pipe 362 of the blower unit 3 is installed so as to deflect so that the air supplied forms a vortex.
The method of claim 3, wherein

The blowing unit (3) incineration device, characterized in that a plurality of through-holes 320 are formed in the disc portion 32, a plurality of baffle plate (323) in the circumferential direction is further formed on the inner circumferential surface of the side wall.
The method of claim 4, wherein

The obstruction plate (323) is incinerator, characterized in that installed inclined to comply with the air flowing through the air pipe (362).
The method of claim 4, wherein

Incinerator, characterized in that the impeller (34) is rotatably installed on the upper surface of the disc portion (32) for stirring.
The method of claim 1,

The second combustion furnace (2),

An outer cylinder 22 in which an air blower 225 is mounted on one side and an auxiliary burner 20 is mounted on a lower portion thereof;

The inner cylinder 24 is installed to be spaced apart from the inside of the outer cylinder 22, the passage is formed to communicate with the first combustion furnace (1)

Incinerator comprising a.
The method of claim 7, wherein

The outer cylinder 22 has a cylindrical shape with an upper and a lower opening, and a donut-shaped disk 221 is attached to each of the upper and lower ends thereof, and an injection hole 223 to which a blower 225 is mounted is formed at a side thereof.

The blower 225 is incinerator, characterized in that the inlet 223 is installed so as to be deflected in the tangential direction of the circle.
The method of claim 7, wherein

The inner cylinder 24,

Cylindrical fireproof furnace 242 having a constant thickness,

It is attached to the outer surface of the refractory furnace 242 and consists of an outer plate material 243, the upper and lower flanges are formed,

Incineration apparatus, characterized in that a plurality of nozzle holes (244) penetrating through the outer plate material (243) and the refractory furnace (242).
The method of claim 9,

The nozzle hole 244 is incinerator, characterized in that the diameter is formed so as to go from the outside to the inside.
The method of claim 2,

The inner cylinder 14

Refractory furnace formed by applying the refractory on the outer peripheral surface;

A plurality of protrusion plate 146 formed on the lower inner peripheral surface

Incinerator, characterized in that further formed.
The method of claim 11,

The inner cylinder 14

An incineration device, characterized in that the donut-shaped barrier wall 145 having a small diameter opening hole 144 is further formed.
The method of claim 9,

The inner cylinder (24) is incinerator, characterized in that the donut-shaped barrier wall (245) having a smaller diameter opening hole (243) is further formed.
The method of claim 1,

The duct (D) is an incinerator, characterized in that the fire layer is further formed on the inner peripheral surface.