KR102480858B1 - Exhaust gas recirculating incineration system - Google Patents

Abstract

According to the present invention, a combustion air-recirculating incineration system can select an outdoor combustion mode and a combustion gas-recyclable combustion mode, thereby enabling eco-friendly incineration suitable to the characteristics of an object to be incinerated, onsite situations, and incineration conditions, can use an inverter motor-based electronic control blower to optimally control the recirculation flow rate of combustion gas and optimally control the inflow of outdoor air and the discharge of the combustion gas, thereby improving combustion efficiency and combustion gas emission efficiency, can increase the separation efficiency of the combustion gas and combustion by-products such as ash even through a simple filtering structure, thereby increasing air pollution prevention efficiency and combustion by-product collection efficiency, and can significantly increase combustion efficiency through a structure in which outdoor air/recyclable combustion gas is uniformly supplied across the entire area of a combustion chamber. The combustion air-recirculating incineration system comprises a combustion gas circulation line (500) for delivering a portion of the combustion gas to an air supply line (200).

Description

Combustion air recirculating incineration system {Exhaust gas recirculating incineration system}

The present invention is in line with a combustion air recirculation type incinerator, and more specifically, it has a structure in which an outdoor combustion mode and a combustion gas recycling combustion mode can be selected, so that eco-friendly incineration tailored to the characteristics of the incinerated object, site situation, incineration conditions, etc. With the use of an inverter motor-based electronically controlled blower, optimal control of the recirculation flow rate of combustion gas, and optimal control of outside air inflow and combustion gas discharge can be achieved, increasing combustion efficiency and combustion gas emission efficiency can be promoted, and simple filtering Through the structure, the separation efficiency between combustion by-products such as ashes and combustion gas is increased, and air pollution prevention efficiency and combustion by-product collection efficiency are increased, as well as a structure in which external air/recycled combustion gas is uniformly supplied over the entire area of the combustion chamber. It is a line of combustion air recirculation type incinerators that can expect a significant increase in combustion efficiency through

Until now, a number of incineration devices have been proposed and used, and related technologies include Korean Patent Laid-Open Publication No. 10-2007-0077232 "Waste Incineration Device", Registered Patent Publication No. 10-1949052 "Incinerator", etc. This is devised.

On the other hand, most of the conventional incinerators have a structure in which the waste in the combustion chamber is directly discharged to the combustion calcination that occurs when the waste is not burned for a sufficient time. As a result, air pollution was a problem. In response to this, an incineration device with a structure that recirculates combustion gas has been proposed. Korean Registered Patent Publication No. 10-2074716 "Exhaust gas recirculation method incinerator system", Registered Utility Model Publication No. 20-0291644 "Smoke circulation" A simple incinerator” has been devised.

However, in the case of the prior art, the focus is on air pollution reduction due to smoke recirculation, so there are limitations in realizing the increase in additional functions required for the incinerator, such as increase in combustion efficiency or efficient removal of combustion byproducts, or a system for increasing additional functions There was a problem with complex configuration.

Republic of Korea Patent Publication Publication No. 10-2007-0077232 "Waste incineration device" Korean Registered Patent Registration No. 10-1949052 "Incinerator" Republic of Korea Patent Publication Registration No. 10-2074716 "Exhaust gas recirculation incinerator system" Republic of Korea Registered Utility Model Registration No. 20-0291644 "Smoke circulation type simple incinerator"

Therefore, the present invention improves the problems of the prior art, the air input line, the combustion gas discharge line, and the combustion gas circulation line are connected to each other to form an integral body, and the manual / The outdoor combustion mode in which materials to be incinerated are burned only by supplying outside air through automatic control, and the combustion gas recycling combustion mode in which materials to be incinerated are burned by supplying some of the combustion gas with outside air are selectively performed to ensure that the characteristics of incinerated materials, site conditions, and incineration are selectively performed. It is an object of the present invention to provide a new type of combustion air recirculation type incinerator capable of environmentally friendly incineration tailored to conditions.

In addition, the present invention can configure the supply-side blower installed in the air input line and the discharge-side blower installed in the combustion gas circulation line as an electronically controlled blower based on an inverter motor. It is an object of the present invention to provide a new type of combustion air recirculation type incinerator capable of increasing combustion efficiency and combustion gas discharge efficiency while optimal control of gas discharge is possible.

In addition, the present invention can increase the separation efficiency of combustion by-products such as ash and combustion gas through a simple structure in which a filtering section is formed with a blocking partition provided in a combustion gas discharge line, one or more vertically arranged sub-channels, a filtering casing, and a filtering screw. It is an object of the present invention to provide a new type of combustion air recirculation type incineration device that enables

In addition, the present invention provides outside air over the entire area of the combustion chamber through a structure in which a plurality of branch pipes for supplying air in the combustion chamber are horizontally arranged, while left and right discharge holes formed inclined upward in each branch pipe for supplying air are spaced apart in the longitudinal direction. / Recycling The purpose of the present invention is to provide a new type of combustion air recirculation type incinerator that can lead to a significant increase in combustion efficiency by uniformly supplying combustion gas.

According to the features of the present invention for achieving the above object, the present invention body frame 100 is formed inside the combustion chamber 130 to be incinerated is placed; an air inlet line 200 having an inlet channel through which outdoor air flows and is connected to the body frame 100 to transfer the outdoor air of the inlet channel to the combustion chamber 130; A moving discharge channel 310 into which combustion gas is introduced is formed inside and is connected to the body frame 100 to discharge the combustion gas of the combustion chamber 130 to the outside, and the combustion gas moves upward after downward movement. A combustion gas discharge line 300 formed with a filtering section 320 of a setting path leading to; Combustion is connected to the filtering section 320 of the combustion gas discharge line 300, and a collection space 410 in which combustion by-products separated in the process of passing the combustion gas through the filtering section 320 is collected is formed inside. by-product collector 400; A circulation channel through which a part of the combustion gas is introduced and moved is formed inside, and both ends are connected to the air input line 200 and the combustion gas discharge line 300 so that a part of the combustion gas is transferred to the air input line 200. It is composed of a configuration including; a combustion gas circulation line 500 that delivers to,

Combustion air recirculation type incinerator, characterized in that any one combustion mode selected from an outside air combustion mode in which materials to be incinerated are burned only by supplying outside air and a combustion gas recycling combustion mode in which materials to be incinerated are burned by supplying a portion of the outside air and combustion gas is performed provides a tooth

The combustion air recirculation type incinerator according to the present invention is installed at one end of the air input line 200 to turn on/off the inflow of outside air (600); A combustion gas inlet opening/closing valve 700 installed at one end of the combustion gas circulation line 500 to turn on or off a portion of combustion gas flowing into the air input line 200;

The outdoor air combustion mode and the outdoor air-combustion gas recycling combustion mode are selected by manual control of the outdoor air inlet opening/closing valve 600 and the combustion gas inlet opening/closing valve 700 by the manager, or the electronic control controller 1000 The outdoor air combustion mode and the outdoor air-combustion gas recycling combustion mode can be selected by the automatic control of the on-off valve 600 for the inflow of outside air and the on-off valve 700 for the inflow of combustion gas.

Such a combustion air recirculation type incineration device according to the present invention includes a supply-side blower 800 installed in the air input line 200 to induce forced transport of outside air to the combustion chamber 130; It is composed of a configuration including; a discharge-side blower 900 installed in the combustion gas circulation line 500 to induce discharge of combustion gas to the outside,

By manually controlling the supply-side blower 800 and the discharge-side blower 900 by the manager, the control of the recirculation flow rate of combustion gas, the inflow of outside air and the discharge of combustion gas is made possible, or By automatically controlling the supply-side blower 800 and the discharge-side blower 900, it is possible to optimally control the recirculation flow rate of the combustion gas and to optimally control the inflow of outside air and the discharge of the combustion gas.

In the combustion air recirculation type incinerator according to the present invention, at least one selected from the supply side blower 800 and the discharge side blower 900 is composed of an electronically controlled blower having an impeller operated by an inverter motor and an electronic control controller ( 1000), it is possible to induce an increase in combustion efficiency and an increase in combustion gas emission efficiency.

In the combustion air recirculation type incinerator according to the present invention, the combustion gas discharge line 300 is disposed obliquely in the discharge channel 310 to form an internal space before filtering (311) and after filtering (312). ) Blocking bulkhead 330 partitioned into; One or more vertically arranged sub-channels connected to the combustion gas inlet hole 331 of the blocking barrier rib 330 and formed vertically to pass through, through which the combustion gas reaching the barrier rib 330 flows and moves downward. (340); It is spaced apart from the lower side of the blocking partition wall 330, is spaced apart while surrounding the vertically arranged sub-channel 340, and is formed to penetrate vertically, so that the lower end is the collection space 410 of the combustion by-product collection port 400. A filtering casing 350 connected to; It is made of a screw-type plate body disposed between the outer circumferential surface of the vertically arranged sub-channel 340 and the inner circumferential surface of the filtering casing 350 to form the filtering section 320 in a spiral shape, and passes through the vertically arranged sub-channel 340. and a filtering screw 360 that allows combustion by-products of the combustion gas moving upward through the filtering section 320 to collide and fall.

The combustion air recirculation type incinerator according to the present invention is arranged horizontally under the combustion chamber 130 of the body frame 100, is connected to the air input line 200, receives external air, and receives a plurality of discharges. It may include a plurality of air supply branch pipes 140 in which holes 141 are spaced apart at set intervals along the longitudinal direction so that outside air is uniformly introduced into the combustion chamber 130 in an xy plane area.

In the combustion air recirculation type incineration device according to the present invention, the air supply branch pipe 140 forms a set angle to the left and right, and the discharge holes 141 formed inclined upward may be spaced apart in the longitudinal direction.

Since the combustion air recirculation type incinerator according to the present invention has a structure in which an external combustion mode and a combustion gas recycling mode can be selected, eco-friendly incineration tailored to the characteristics of the incinerated object, site conditions, incineration conditions, etc. The use of an inverter motor-based electronically controlled blower makes it possible to optimally control the recirculation flow rate of combustion gas, and to optimally control the inflow of outside air and discharge of combustion gas. Through this, the effect of increasing combustion efficiency and combustion gas emission efficiency can be expected.

In addition, the combustion air recirculation type incinerator according to the present invention has an effect of increasing the separation efficiency of combustion by-products such as ash and combustion gas through a simple filtering structure, thereby increasing air pollution prevention efficiency and combustion by-product collection efficiency. It has the effect of remarkably increasing combustion efficiency through a structure in which external air/recycled combustion gas is uniformly supplied throughout.

1 is a side view of a combustion air recirculation type incinerator according to an embodiment of the present invention;
Figure 2 is a plan view of the combustion air recirculation type incinerator according to an embodiment of the present invention for showing the internal configuration of the body frame;
3 and 4 are views for showing the arrangement structure of the branch pipe for supplying air according to an embodiment of the present invention;
5 and 6 are views for showing the configuration of the discharge hole of the branch pipe for air supply according to an embodiment of the present invention;
Figure 7 is a view for showing the external configuration of the body frame according to an embodiment of the present invention;
8 and 9 are views for showing the configuration of a filtering section of a combustion gas discharge line according to an embodiment of the present invention;
10 is a view for showing the control configuration of the blower of the combustion air recirculation type incinerator according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail based on the accompanying drawings FIGS. 1 to 10. On the other hand, in the drawings and detailed description, illustrations and references to configurations and operations that can be easily understood by those skilled in the art are simplified or omitted. In particular, in the drawings and detailed description, detailed descriptions and illustrations of specific technical configurations and actions of elements not directly related to the technical features of the present invention are omitted, and only the technical configurations related to the present invention are briefly shown. or explained.

Combustion air recirculation type incinerator according to an embodiment of the present invention, as shown in FIGS. 1 and 2, the body frame 100, the air input line 200, the combustion gas discharge line 300, It consists of a configuration including a combustion gas circulation line 500, and the air input line 200, the combustion gas discharge line 300, and the combustion gas circulation line 500 are connected to each other to form an integral body, so that only external air is supplied. An outside air combustion mode in which each object is burned and a combustion gas recycling combustion mode in which an object to be incinerated is burned by supplying a portion of the combustion gas to outside air are selectively performed.

The main body frame 100 has a combustion chamber 130 in which the object to be incinerated is formed inside, and the object to be incinerated is ignited by a manager and the outside air or combustion gas supplied to the combustion chamber 130 causes the object to be incinerated to burn. Continuous incineration is carried out.

Here, a plurality of air supply branch pipes 140 are installed in the combustion chamber 130 of the body frame 100, and the plurality of air supply branch pipes 140 are body frame 100 as shown in FIGS. ) Is arranged horizontally in the lower part of the combustion chamber 130. The branch pipe 140 for supplying air is connected to the air input line 200, respectively, as shown in FIGS. 2 and 4, and receives a portion of outside air or combustion gas.

In addition, a plurality of discharge holes 141 are formed in the air supply branch pipe 140 at set intervals along the longitudinal direction so that outside air is uniformly introduced into the combustion chamber 130 in the xy plane area. In particular, in the air supply branch pipe 140 according to the embodiment of the present invention, as shown in FIGS. 5 and 6, the discharge holes 141 inclined upward while forming a set angle to the left and right are spaced apart in the longitudinal direction, through which As a part of external air/combustion gas is uniformly supplied over the entire area of the combustion chamber 130, a significant increase in combustion efficiency can be induced. Here, the left and right discharge holes 141 may be spaced apart from each other at an upward inclination while forming an angle of 90 degrees.

On the other hand, the body frame 100 is provided with a main door 110 for inputting the to-be-incinerated material and a clean-out door 120 for cleaning the inside, as shown in FIG.

The air input line 200 has an inflow channel through which outdoor air or a portion of combustion gas is introduced and moved, and is connected to the body frame 100 to direct outside air or a portion of combustion gas into the combustion chamber. (130). In particular, the air input line 200 according to the embodiment of the present invention is directly connected to the plurality of air supply branch pipes 140 at the lower end of the body frame 100 . In addition, the air input line 200 according to an embodiment of the present invention is formed of a duct arranged in a “L” shape around the body frame 100 as shown in FIG. 2 to minimize the installation space.

The combustion gas discharge line 300 has a moving discharge channel 310 into which combustion gas is introduced, and is connected to the upper part of the body frame 100 to direct the combustion gas of the combustion chamber 130 to the outside. will eject Here, in the combustion gas discharge line 300 according to an embodiment of the present invention, a filtering section 320 of a set path for inducing upward movement after downward movement of the combustion gas is formed so that combustion byproducts are separated and removed from the combustion gas, and the main body It consists of a duct arranged in a “┘” shape at the upper end of the frame 100.

To this end, the combustion gas discharge line 300 according to the embodiment of the present invention includes a blocking partition 330, a plurality of vertically arranged sub-channels 340, a filtering casing 350, a filtering screw ( 360).

As shown in FIG. 8 , the blocking barrier rib 330 is disposed obliquely to the discharge channel 310 to divide the inner space into a pre-filtering stage space 311 and a post-filtering stage space 312 .

As shown in FIGS. 8 and 9 , the plurality of vertically arranged sub-channels 340 are connected to the combustion gas inlet hole 331 of the blocking barrier 330 and are vertically arranged, and are formed to penetrate vertically and pass through the blocking barrier 330. Reached combustion gases are introduced and allowed to move downward.

The filtering casing 350 is formed at the lower side of the blocking partition wall 330 and spaced downward from the blocking partition wall 330, while surrounding the vertical subchannel 340 and spaced apart from the vertically arranged subchannel 340 in the radial direction. . Such a filtering casing 350 is formed to penetrate vertically, and the lower end is connected to the collection space 410 of the combustion byproduct collection port 400.

The filtering screw 360 is made of a screw-type plate body that is disposed between the outer circumferential surface of the vertically arranged sub-channel 340 and the inner circumferential surface of the filtering casing 350 to form the filtering section 320 in a spiral shape. After passing through the channel 340, combustion by-products of the combustion gas moving upward through the filtering section 320 collide with the surface of the filtering screw 360 and fall. The combustion byproducts falling in this way pass through the combustion byproduct collector 400 and are collected in the collection container 420 .

The combustion by-product collection port 400 is connected to the filtering section 320 of the combustion gas discharge line 300, and the collection space 410 in which combustion by-products separated in the process of passing the combustion gas through the filtering section 320 are collected. ) is formed inside, and the collection container 420 is detachably coupled to the lower part of the collection space 410 so that the collection and removal of combustion by-products are repeatedly performed.

The combustion gas circulation line 500 has a circulation channel through which a portion of combustion gas is introduced and moved, and as shown in FIGS. 1 and 2, the lower part is connected to the air input line 200, and the combustion gas The upper part is connected to the discharge line 300 to transfer a part of the combustion gas to the air input line 200.

On the other hand, the combustion air recirculation type incinerator according to an embodiment of the present invention includes an on-off valve 600 for inflow of outside air and an on-off valve 700 for inflow of combustion gas, as shown in FIG. is installed at one end of the air input line 200 to turn on/off the inflow of outside air, and the on/off valve 700 for inlet of combustion gas is installed at one end of the combustion gas circulation line 500 to It is to turn on or off some of the combustion gas inflow to (200).

Here, the combustion air recirculation type incinerator according to an embodiment of the present invention has an outdoor air combustion mode and an outdoor air-combustion gas recycling combustion by manual control of the open/close valve 600 for inflow of outside air and the open/close valve 700 for inflow of combustion gas by a manager. Mode selection may be made, and the outdoor air combustion mode and the outdoor air-combustion gas recycling combustion mode are automatically controlled by the electronic control controller 1000 of the open/close valve 600 for inflow of outside air and the open/close valve 700 for inlet of combustion gas. of can be made.

In addition, the combustion air recirculation type incinerator according to an embodiment of the present invention is composed of a supply-side blower 800 and a discharge-side blower 900 as shown in FIG. 10, the supply-side blower 800 is an essential component, The discharge side blower 900 is an optional component. Of course, when the supply-side blower 800 and the discharge-side blower 900 are provided together, the functionality of the combustion air recirculation type incinerator is improved.

The supply-side blower 800 is installed in the air input line 200 to induce forced transport of outside air to the combustion chamber 130, and the discharge-side blower 900 is installed in the combustion gas circulation line 500 to send combustion gas to the outside. induce discharge.

In the combustion air recirculation type incinerator according to an embodiment of the present invention, a manager manually controls the supply side blower 800 and the discharge side blower 900 to control the recirculation flow rate of combustion gas, control the inflow of outside air and discharge of combustion gas. may be made possible, and by the automatic control of the supply-side blower 800 and the discharge-side blower 900 by the electronic control controller 1000, optimal control of the recirculation flow rate of the combustion gas, optimal control of the inflow of outside air and discharge of the combustion gas Might as well make it possible. In particular, the supply-side blower 800 or the discharge-side blower 900 is configured as an electronically controlled blower having an impeller operated by an inverter motor and controlled by the electronic control controller 1000 to increase combustion efficiency and combustion gas emission efficiency. can be induced.

In the combustion air recirculation type incinerator according to an embodiment of the present invention configured as described above, the air input line, the combustion gas discharge line, and the combustion gas circulation line are connected to each other to form an integral body, and an on-off valve for inflow of outside air and an on-off valve for inflow of combustion gas The outdoor combustion mode in which materials to be incinerated are combusted only by external air supply by manual/automatic control, and the combustion gas recycling combustion mode in which materials to be incinerated are burned by the supply of some of the combustion gas in outdoor air are selectively performed so that the characteristics of incinerated materials and on-site Eco-friendly incineration tailored to the situation and incineration conditions can be achieved. In addition, the combustion air recirculation type incinerator according to an embodiment of the present invention may configure a supply-side blower installed in an air input line and a discharge-side blower installed in a combustion gas circulation line as an inverter motor-based electronically controlled blower, through which the combustion gas Optimum control of the recirculation flow rate, external air inflow and combustion gas discharge can be optimally controlled, thereby increasing combustion efficiency and combustion gas emission efficiency. In addition, the combustion air recirculation type incinerator according to an embodiment of the present invention burns like ashes through a simple structure in which a filtering section is formed with a blocking partition provided in a combustion gas discharge line, one or more vertically arranged sub-channels, a filtering casing, and a filtering screw. The separation efficiency of by-products and combustion gas can be increased.

As described above, the combustion air recirculation type incinerator according to the embodiment of the present invention is shown according to the above description and drawings, but this is only an example and various changes and changes are made within the scope of the technical idea of the present invention. That variations are possible will be well understood by those skilled in the art.

100: body frame
110: main door
120: cleaning door
130: combustion chamber
140: branch pipe for air supply
141: discharge hole
200: air input line
300: combustion gas discharge line
310: discharge channel
311: space before filtering
312: space after filtering
320: filtering section
330: blocking bulkhead
331: combustion gas inlet hole
340: vertical arrangement subchannel
350: filtering casing
360: filtering screw
400: Combustion byproduct collector
410: collection space
420: collection container
500: combustion gas circulation line
600: open/close valve for outside air inflow
700: on-off valve for combustion gas inflow
800: supply side blower
900: discharge side blower
1000: electronic control controller

Claims (7)

A body frame 100 having a combustion chamber 130 in which an object to be incinerated is placed;
An inflow channel through which outdoor air is introduced and moved is formed inside, and is connected to the body frame 100 to transfer the outside air of the inflow channel to the combustion chamber 130. An air input line 200 made of a duct arranged in a "L" shape around the circumference;
A moving discharge channel 310 into which combustion gas is introduced is formed inside and is connected to the body frame 100 to discharge the combustion gas of the combustion chamber 130 to the outside, and the combustion gas moves upward after downward movement. A combustion gas discharge line 300 formed of a duct arranged in a "┘" shape at the upper end of the body frame 100 and having a filtering section 320 of the setting path leading to the induction;
A collection space 410 connected to the filtering section 320 of the combustion gas discharge line 300 and collecting combustion by-products separated in the process of passing the combustion gas through the filtering section 320 is formed therein, a combustion byproduct collector 400 in which a collection container 420 is detachably coupled to a lower portion of the collection space 410 so that combustion byproducts are repeatedly collected and removed;
A circulation channel through which a part of the combustion gas is introduced and moved is formed inside, and both ends are connected to the air input line 200 and the combustion gas discharge line 300 so that a part of the combustion gas is transferred to the air input line 200. It is composed of a configuration including; a combustion gas circulation line 500 that delivers to,
Combustion air recirculation type incineration characterized in that any one combustion mode selected from an outside air combustion mode in which the material to be incinerated is burned only by supplying outside air and a combustion gas recycling combustion mode in which the material to be incinerated is burned by supplying a portion of the outdoor air and combustion gas is performed Device. A body frame 100 having a combustion chamber 130 in which an object to be incinerated is placed;
an air inlet line 200 having an inlet channel through which outdoor air flows and is connected to the body frame 100 to transfer the outdoor air of the inlet channel to the combustion chamber 130;
A moving discharge channel 310 into which combustion gas is introduced is formed inside and is connected to the body frame 100 to discharge the combustion gas of the combustion chamber 130 to the outside, and the combustion gas moves upward after downward movement. A combustion gas discharge line 300 formed with a filtering section 320 of a setting path leading to;
Combustion is connected to the filtering section 320 of the combustion gas discharge line 300, and a collection space 410 in which combustion by-products separated in the process of passing the combustion gas through the filtering section 320 is collected is formed inside. by-product collector 400;
A circulation channel through which a part of the combustion gas is introduced and moved is formed inside, and both ends are connected to the air input line 200 and the combustion gas discharge line 300 so that a part of the combustion gas is transferred to the air input line 200. Combustion gas circulation line 500 that delivers to;
a supply-side blower 800 installed in the air input line 200 to induce forced transport of outside air into the combustion chamber 130;
A discharge-side blower 900 installed in the combustion gas circulation line 500 to induce discharge of combustion gas to the outside; an outdoor combustion mode in which materials to be incinerated are combusted only by supplying outdoor air, and combustion with outdoor air. Any one combustion mode selected from combustion gas recycling combustion modes in which incineration objects are burned by supplying a portion of the gas is performed,
By manually controlling the supply-side blower 800 and the discharge-side blower 900 by the manager, the control of the recirculation flow rate of combustion gas, the inflow of outside air and the discharge of combustion gas is made possible, or The automatic control of the supply-side blower 800 and the discharge-side blower 900 enables optimal control of the recirculation flow rate of combustion gas and optimal control of outside air inflow and combustion gas discharge, but the supply-side blower 800 and the discharge-side blower ( At least one selected from 900) is composed of an electronically controlled blower having an impeller operated by an inverter motor, and is controlled by an electronic control controller 1000 to increase combustion efficiency and combustion gas emission efficiency. Combustion characterized in that Air recirculation type incinerator. A body frame 100 having a combustion chamber 130 in which an object to be incinerated is placed;
an air inlet line 200 having an inlet channel through which outdoor air flows and is connected to the body frame 100 to transfer the outdoor air of the inlet channel to the combustion chamber 130;
A moving discharge channel 310 into which combustion gas is introduced is formed inside and is connected to the body frame 100 to discharge the combustion gas of the combustion chamber 130 to the outside, and the combustion gas moves upward after downward movement. A combustion gas discharge line 300 formed with a filtering section 320 of a setting path leading to;
Combustion is connected to the filtering section 320 of the combustion gas discharge line 300, and a collection space 410 in which combustion by-products separated in the process of passing the combustion gas through the filtering section 320 is collected is formed inside. by-product collector 400;
A circulation channel through which a part of the combustion gas is introduced and moved is formed inside, and both ends are connected to the air input line 200 and the combustion gas discharge line 300 so that a part of the combustion gas is transferred to the air input line 200. It consists of a configuration including a combustion gas circulation line 500 that transmits to the outside air combustion mode in which the material to be incinerated is burned only by supplying outside air, and the combustion gas recycling combustion mode in which the material to be incinerated is burned by supplying a portion of the combustion gas to outside air. Any one selected combustion mode is performed,
The combustion gas discharge line 300 includes a blocking partition wall 330 that is inclined to the discharge channel 310 and divides the inner space into a pre-filtering stage space 311 and a post-filtering stage space 312; One or more vertically arranged sub-channels connected to the combustion gas inlet hole 331 of the blocking barrier rib 330 and formed vertically to pass through, through which the combustion gas reaching the barrier rib 330 flows and moves downward. (340); It is spaced apart from the lower side of the blocking partition wall 330, is spaced apart while surrounding the vertically arranged sub-channel 340, and is formed to penetrate vertically, so that the lower end is the collection space 410 of the combustion by-product collection port 400. A filtering casing 350 connected to; It is made of a screw-type plate body disposed between the outer circumferential surface of the vertically arranged sub-channel 340 and the inner circumferential surface of the filtering casing 350 to form the filtering section 320 in a spiral shape, and passes through the vertically arranged sub-channel 340. Combustion air recirculation type incinerator characterized in that it consists of a configuration comprising a; filtering screw 360 to cause the combustion by-products of the combustion gas moving upward in the filtering section 320 to collide and fall. According to any one of claims 1 to 3,
An open/close valve 600 for outside air inflow installed at one end of the air input line 200 to turn on/off the inflow of outside air; A combustion gas inlet opening/closing valve 700 installed at one end of the combustion gas circulation line 500 to turn on or off a portion of combustion gas flowing into the air input line 200;
The outdoor air combustion mode and the outdoor air-combustion gas recycling combustion mode are selected by manual control of the outdoor air inlet opening/closing valve 600 and the combustion gas inlet opening/closing valve 700 by the manager, or the electronic control controller 1000 Combustion air recirculation type incineration, characterized in that the selection of the outdoor combustion mode and the outdoor air-combustion gas recycling combustion mode is made by the automatic control of the on-off valve 600 for the inflow of outside air and the on-off valve 700 for the inflow of combustion gas by Device. According to any one of claims 1 to 3,
It is horizontally arranged in the lower part of the combustion chamber 130 of the body frame 100, and is connected to the air input line 200 to receive external air, and a plurality of discharge holes 141 are provided at set intervals along the length direction. Combustion air recirculation type incinerator comprising a plurality of air supply branch pipes 140 spaced apart from each other so that outside air uniformly flows into the combustion chamber 130 in an xy plane area. According to claim 5,
The air supply branch pipe 140 is a combustion air recirculation type incineration device, characterized in that the discharge holes 141 formed to be inclined upward while forming a set angle to the left and right are spaced apart in the longitudinal direction. delete

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