KR20220019964A - Incinerator for waste plastics with multiple combustion chambers - Google Patents

Abstract

The present invention relates to multiple combustion of waste plastics by continuously providing a first incineration unit consisting of a lower combustion unit and an upper combustion unit and a second incineration unit in which an incinerated material generated in the first incineration unit is moved and burned once more. According to the present invention, both a gas and a carbonized material generated during the combustion are combusted. As an external air inlet for injecting a high-pressure air into the interior of the first incineration unit in an upward direction is provided, the gas and the carbonized material can be circulated at high speed during the combustion. Therefore, combustion efficiency can be greatly increased by adding a high pressure along with a high temperature during the combustion.

Description

{ Incinerator for waste plastics with multiple combustion chambers }

The present invention relates to an incineration device for waste plastics equipped with multiple combustion chambers, and more particularly, to multiple combustion of waste plastics, which is composed of a lower combustion unit and an upper combustion unit so as to burn both gas and char that are generated during combustion. It relates to an incineration device for waste plastics having a multi-combustion chamber in which the primary incineration unit and the secondary incineration unit in which the incinerated material generated in the primary incineration unit is moved and burned again is continuously formed.

In general, an incineration apparatus for incinerating plastics contained in industrial or urban waste includes an outer cylinder composed of a heat insulating fireproof layer, an inlet through which waste can be put into the outer cylinder, and the waste input to the inlet to support It is configured with a grate seated on the inner bottom of the outer cylinder, a burner for incinerating the waste placed on the grate, and a communication for discharging harmful gas of waste incinerated by the burner to the outside.

In such a conventional incineration device, when the waste is ignited by a burner while it is placed on the upper surface of the grate by putting the waste into the inlet, the waste is incinerated. After the waste is incinerated, the generated harmful gas is discharged into the atmosphere through a flue and used.

On the other hand, domestic registration patent No. 10-0222003 was disclosed as a technical document on a conventional incineration device.

However, in the conventional incineration device, the grate is simply formed as a grid-type fixed structure, and the stacked waste is incinerated in a state in which the waste is continuously stacked thereon. In addition to the formation of a molten crank, the combustion air is supplied to the waste stacked on the grate from the lower side of the grate, so the combustion time is long and incomplete combustion is easy to occur.

In addition, many noxious gases were generated by the incomplete combustion, and these noxious gases were directly released into the atmosphere through the chimney and became the main culprit for destroying the natural environment, as well as incineration ash and In the treatment of dust, there was a problem in that the operator had to scoop out the incinerator with a shovel one by one while the incinerator was stopped.

Therefore, it was not uncommon for incineration ash and dust to be blown by the wind and pollute the surrounding environment during the work of scooping out the incineration ash and dust. Because of the inflow, there was a problem that harmed the health of the worker.

The present invention was created to solve the problems of the prior art as described above, and an object of the present invention is to move and An external airway that continuously burns waste plastic by continuously providing a second incinerator that burns again, burns all gases and char that are generated during combustion, and injects high-pressure air upwards into the interior of the first incinerator It is to provide an incinerator for waste plastics equipped with a multi-combustion chamber that can greatly increase combustion efficiency by adding high pressure and high temperature during combustion because it has an inlet and can circulate at high speed during combustion.

The incineration apparatus for waste plastics having multiple combustion chambers according to the present invention for achieving the above object is an incineration apparatus for incinerating waste plastics generated from various wastes, and a box-shaped first combustion body having an internal space, and the first A hopper device provided on the upper part of the combustion body for supplying or blocking the waste plastic, a lower combustion part provided under the inner lower part of the first combustion body and generating a direct heat source, and an inner upper part of the first combustion body a first incineration unit provided in the upper end combustion unit for circulating the heat source generated from the lower end combustion unit and burning the waste plastic; A box-shaped second combustion body in which the incinerated material burned in the first incineration unit is moved, and a second grate through which the incinerated material moved inside the second combustion body passes or is supported, and the second combustion body a second incineration unit consisting of an open cover that is opened to the outside on the upper part of the incinerator; It is connected between the first incineration unit and the second incineration unit and characterized in that it is composed of a tubular moving passage so that the incinerated material burned in the first incineration unit is moved to the second incineration unit.

The lower combustion part is inclined at a predetermined angle in the interior of the first combustion body and includes a lower grate that burns the waste plastic after seating it, and a gas burner that is provided in the center of the lower grate and generates a flame through gas. characterized in that

In the lower part of the lower grate, the incinerated material generated after burning the waste plastic is moved upward to circulate at high pressure inside the first combustion body of the incinerated material. do.

The upper combustion part is inclined at a predetermined angle in the interior of the first combustion body and is provided on the inner upper portion of the first combustion body and the upper grate is burned after the waste plastic is seated. It is characterized in that it consists of an upper barrier wall that crushes the incinerated material into small particles.

In the lower part of the upper grate, the upper external air inlet is formed so that the incinerated material generated after burning the waste plastic is moved upward to circulate at high pressure inside the first combustion body of the incinerated material. do.

It is characterized in that a second blocking wall is provided inside the second incineration unit to crush the incinerated material into small particles by impact when the incinerated material is circulated.

It is characterized in that the first combustion body and the second combustion body is provided with a cleaning cover that opens during maintenance on the walls of the combustion body.

The hopper device includes a pipe-shaped conduit seated on the upper portion of the first combustion body, a first blocking wall penetrating inside at one side of the conduit, and a lower portion of the first blocking wall, the first blocking wall It is characterized in that it consists of a second blocking wall that is opened when the wall is closed.

As described above, the incineration apparatus for waste plastics having multiple combustion chambers according to the present invention has the following effects.

First, by continuously providing a first incineration unit consisting of a lower combustion unit and an upper combustion unit, and a second incineration unit in which the incinerated material generated in the first incineration unit is moved and combusted again, waste plastic is burned one-time By combusting multiple, rather than burning, gases and chars generated during combustion can be burned, so communication is unnecessary, and post-processing is simplified because there are no chars remaining,

Second, by having an external air inlet for injecting high-pressure air in the upper direction inside the first incineration unit, it can circulate at high speed during combustion, so that combustion efficiency can be greatly increased by adding high-pressure pressure together with high temperature during combustion. can,

Third, it is possible to increase the combustion efficiency by reducing the particle size of the incinerated material by providing a barrier wall that collides with the movement of the incinerated material and crushes it with the impact inside the first incineration unit and the second incineration unit,

Fourth, by providing a cleaning cover on the wall of the first incineration unit, it is possible to easily clean the debris and ashes generated inside the incineration device after using the incineration device for a long time,

Fifth, by having the first blocking wall and the second blocking wall that open and close the hopper device in two stages, there is an effect that the waste plastic (P) can be added simply and safely during incineration.

1 is a front sectional view showing an incinerator according to the present invention,
2 is a side cross-sectional view showing a first incineration unit according to the present invention;
Figure 3 is a plan cross-sectional view showing a cross-section AA of Figure 1,
4 is a side cross-sectional view showing the action of the first incineration unit according to the present invention;
5 is a side cross-sectional view showing the action of the second incineration unit according to the present invention;
Figure 6 is a partial front cross-sectional view showing the action of the hopper according to the present invention.

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

The incineration apparatus for waste plastics provided with multiple combustion chambers according to the present invention is an incineration apparatus 1 that incinerates waste plastics (P) generated from various wastes as shown in FIGS. A first combustion body 11, a hopper device 12 provided on the upper portion of the first combustion body 11 and supplying or blocking the waste plastic P to the inside, and the first combustion body 11 The lower combustion part 13 provided in the lower inner side of the direct heat source (F) is provided, and the heat source (F) which is provided on the inner upper part of the first combustion body 11 and generated by the lower combustion part 13 a first incineration unit 10 consisting of an upper combustion unit 14 that circulates and burns the waste plastic (P); The box-shaped second combustion body 21 in which the incinerated material F1 burned in the first incineration unit 10 is moved, and the incinerated material F1 moved inside the second combustion body 21 ) a second incineration unit 20 composed of a second grate 22 passed through or supported by the second grate 22 and an open cover 23 that is opened to the outside on an upper portion of the second combustion body 21; It is connected between the first incineration unit 10 and the second incineration unit 20, and the incinerated product F1 burned in the first incineration unit 10 is the second incineration unit 20 It is composed of a tubular moving passage 30 to be moved to

On the other hand, a conveyor device (not shown) inclined at a predetermined angle is provided on the upper portion of the hopper device 12, and the wall surface of the first combustion body 11 has a low emissivity and a high radiation effect. It is preferable to be formed of a fire-resistant member containing alumina, titanium, zircon, and lithium so that the internal pressure and temperature are increased and the generation of incinerated substances such as smoke, ash, and odor is minimized.

In addition, the waste plastic (P) is made of PP or PE, and the size thereof is formed to be 2 cm or less, and the gap between the grate 131 is preferably formed to be 1 cm or less.

On the other hand, the temperature of the incinerator is preferably maintained at 1400 to 1700 degrees.

And, the lower combustion part 13 is inclined at a predetermined angle in the interior of the first combustion body 11 and a lower grate 131 for burning the waste plastic P after seating it, and the lower grate 131 ) is provided in the central part and consists of a gas burner 132 that generates a flame through gas.

Here, an opening communicating with the outside is formed on the lower wall surface of the first combustion body 11 so that a solid raw material in the form of coke capable of increasing the thermal power of the gas burner 132 can be supplied, and the opening part It is preferable that a lid be provided so as to be sealed during incineration.

In addition, in the lower portion of the lower grate 131, the incinerated material F1 generated after burning the waste plastic P is moved to the upper portion of the incinerated material F1 inside the first combustion body 11. The lower external airway inlet 133 installed in the upper direction to circulate at high pressure is formed.

And, the upper combustion part 14 is inclined at a predetermined angle in the interior of the first combustion body 11 and an upper grate 141 for burning after the waste plastic P is seated, and the first combustion body It is provided on the inner upper part of (11) and consists of a top blocking wall 142 that crushes the incinerated material F1 into small particles by impact when the incinerated material F1 is circulated.

In addition, in the lower portion of the upper grate 141, the incinerated material F1 generated after burning the waste plastic P is moved to the upper portion of the incinerated material F1. The inside of the first combustion body 11 The upper external airway inlet 143 installed in the upper direction to circulate at high pressure is formed.

In addition, a second blocking wall 24 is provided inside the second incineration unit 20 to crush the incinerated material F1 into small particles by impact when the incinerated material F1 is circulated.

Meanwhile, the upper barrier wall 142 and the second barrier wall 24 are preferably formed by stacking bricks.

In addition, a cleaning cover 40 that is opened during cleaning and maintenance is provided on the wall surfaces of the first combustion body 11 and the second combustion body 21 .

And, as shown in FIG. 6 , the hopper device 12 has a pipe-shaped conduit 121 seated on the upper portion of the first combustion body 11, and one side of the conduit 121 penetrates into the inside. and a second blocking wall 123 provided under the first blocking wall 122 and opened when the first blocking wall 122 is closed.

The operation of the incineration device for waste plastics provided with the multiple combustion chamber according to the present invention having the configuration as described above is as follows.

The incineration apparatus for waste plastics equipped with multiple combustion chambers according to the present invention is an incineration apparatus 1 that incinerates waste plastics (P) generated from various wastes as shown in FIGS. 1 to 5 .

That is, in order to burn the waste plastic (P) introduced into the interior, the primary incineration unit 10 comprising the lower combustion unit 13 and the upper combustion unit 14 is provided, thereby providing a multiple combustion chamber that burns in multiple layers. By doing so, it is possible to minimize the incineration generated during combustion by burning the waste plastic (P) multiple times rather than one-time combustion.

Here, looking at the action of the first incineration unit 10, the waste plastic P initially supplied through the hopper device 12 is seated on the upper surface of the upper grate 141, and the lower combustion unit 13 ) of the gas burner 132 causes a flame to primary combustion of the waste plastic (P).

Thereafter, the waste plastic (P) is circulated upward through the lower external airway inlet 133, and the incinerated material F1 is crushed into small particles by impact during circulation. Particles through the upper barrier wall 142 can be reduced in size.

Then, the miniaturized particles are additionally burned in the lower grate 131 after passing through the upper grate 141 and again move to the upper combustion unit 14 through the lower outdoor air inlet 133 again.

Here, by forming an upper external airway inlet 143 in the lower portion of the upper grating 141, it is possible to move the incinerated water F1 circulating to the upper portion faster.

Thereafter, the incinerated material (F1) circulates at a high flow rate through the lower external airway inlet 133 and the upper external airway inlet 143 and is continuously burned, and the gas and ash generated at this time are the moving passage part 30 is moved to the second incineration unit 20 through the

And, the gas and ash or the incinerated material F1 moved to the second incineration unit 20 is purified around the second grate 22 and burns again, and finally burns both the gas and the ash, It is produced only from waste heat.

In this way, the waste plastic (P) is primarily combusted through the lower combustion unit 13 and then secondarily combusted in the upper combustion unit 14, and then passes to the second incineration unit 20 for tertiary combustion. As a result, all of the by-products generated from the combustion of the incineration product F1 can be burned through multiple combustion, leaving no gas or waste, such as ash, which is harmful to the human body, making post-treatment very easy, and only waste heat can be left. This makes it possible to conveniently proceed with the post-process.

Here, the post-process refers to a fixation in which steam and hot water electricity are generated through waste heat.

On the other hand, the wall surfaces of the first combustion body 11 and the second combustion body 21 are provided with a cleaning cover 40 that opens during cleaning and maintenance, so that debris and ashes generated after long-term use can be easily cleaned. do.

And, as shown in FIG. 6, the hopper device 12 has a first blocking wall 122 and a second blocking wall 123 that open and close in two stages to add waste plastic (P) during incineration. By providing, by opening the first blocking wall 122 in a state in which the second blocking wall 123 is blocked, the waste plastic (P) is added, and the second blocking wall 122 is blocked in a state where the second blocking wall 122 is blocked It is possible to supply the waste plastic (P) even during incineration by opening the barrier wall (123).

The present invention is not limited to the specific preferred embodiments described above, and various modifications are possible by anyone with ordinary skill in the art to which the invention pertains without departing from the gist of the invention as claimed in the claims. Of course, such modifications are intended to be within the scope of the claims.

<Explanation of symbols for main parts of the drawing>
P : Waste plastic F : Heat source
F1 : Incinerator 1 : Incinerator
10: first incineration unit 11: first combustion body
12: hopper device 121: pipe
122: first blocking wall 123: second blocking wall
13: lower combustion unit 131: lower grate
132: gas burner 133: lower external airway entrance
14: upper combustion part 141: upper grate
142: upper barrier wall 143: upper external airway entrance
20: second incineration unit 21: second combustion body
22: second grate 23: open cover
24: second blocking wall 30: moving passage part
40: cleaning cover

Claims (8)

In the incineration device (1) to incinerate the waste plastic (P) generated from various wastes,
A box-shaped first combustion body 11 having an inner space formed therein, a hopper device 12 provided on the first combustion body 11 and supplying or blocking the waste plastic P to the inside; The lower combustion part 13 provided in the lower inner side of the first combustion body 11 and generating a direct heat source F, and the lower combustion part 13 provided on the inner upper part of the first combustion body 11 a first incineration unit 10 comprising an upper combustion unit 14 in which the heat source (F) generated in the circulates and burns the waste plastic (P);
The box-shaped second combustion body 21 in which the incinerated material F1 burned in the first incineration unit 10 is moved, and the incinerated material F1 moved inside the second combustion body 21 ) a second incineration unit 20 composed of a second grate 22 passed through or supported by the second grate 22 and an open cover 23 that is opened to the outside on an upper portion of the second combustion body 21;
It is connected between the first incineration unit 10 and the second incineration unit 20, and the incinerated product F1 burned in the first incineration unit 10 is the second incineration unit 20 An incineration device for waste plastics having a multi-combustion chamber, characterized in that it comprises; The method of claim 1,
The lower combustion part 13 is inclined at a predetermined angle in the interior of the first combustion body 11, and a lower grate 131 for burning after the waste plastic P is seated, and the lower grate 131. An incineration device for waste plastics provided with a multi-combustion chamber, characterized in that it is provided in the central part and consists of a gas burner 132 that generates a flame through gas. 3. The method of claim 2,
In the lower portion of the lower grate 131, the incinerated material F1 generated after burning the waste plastic P is moved to the upper portion of the incinerated material F1. High pressure inside the first combustion body 11 of the incinerated material F1 An incineration device for waste plastics provided with a multi-combustion chamber, characterized in that the lower external airway inlet 133 installed in the upper direction is formed to circulate to. The method of claim 1,
The upper combustion part 14 is inclined at a predetermined angle in the interior of the first combustion body 11, and the upper grate 141 for burning the waste plastic P after seating it, and the first combustion body 11 ) provided on the inner upper portion of the incinerated material (F1) and is provided with a multi-combustion chamber, characterized in that it is composed of an upper barrier wall 142 that crushes the incinerated material (F1) into small particles by impact during circulation Incinerator for plastics. 5. The method of claim 4,
In the lower portion of the upper grate 141, the incinerated material F1 generated after burning the waste plastic P is moved to the upper portion of the incinerated material F1. High pressure inside the first combustion body 11 of the incinerated material F1 An incineration device for waste plastics provided with a multi-combustion chamber, characterized in that the upper external airway inlet 143 installed in the upper direction is formed so as to be circulated to. The method of claim 1,
A second blocking wall 24 is provided inside the second incineration unit 20 to crush the incinerated material F1 into small particles by impact when the incinerated material F1 is circulated. An incineration device for waste plastics equipped with multiple combustion chambers. The method of claim 1,
An incineration device for waste plastics with multiple combustion chambers, characterized in that a cleaning cover (40) that is opened during cleaning and maintenance is provided on the walls of the first combustion body (11) and the second combustion body (21). The method of claim 1,
The hopper device 12 includes a pipe-shaped conduit 121 seated on the upper portion of the first combustion body 11, and a first blocking wall 122 penetrating through one side of the conduit 121 to the inside; , an incineration device for waste plastics provided with a multiple combustion chamber, characterized in that it is provided under the first blocking wall 122 and consists of a second blocking wall 123 that is opened when the first blocking wall 122 is closed .

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