KR0148030B1 - Multi-stage combustion system - Google Patents

Multi-stage combustion system

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Publication number
KR0148030B1
KR0148030B1 KR1019940022484A KR19940022484A KR0148030B1 KR 0148030 B1 KR0148030 B1 KR 0148030B1 KR 1019940022484 A KR1019940022484 A KR 1019940022484A KR 19940022484 A KR19940022484 A KR 19940022484A KR 0148030 B1 KR0148030 B1 KR 0148030B1
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KR
South Korea
Prior art keywords
combustion
combustion chamber
stocker
waste
drying
Prior art date
Application number
KR1019940022484A
Other languages
Korean (ko)
Other versions
KR960011249A (en
Inventor
박영재
경남호
박상일
전흥신
최경빈
하영진
박기호
고창복
김정근
Original Assignee
오정무
재단법인 한국에너지기술연구소
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Priority to KR1019940022484A priority Critical patent/KR0148030B1/en
Publication of KR960011249A publication Critical patent/KR960011249A/en
Application granted granted Critical
Publication of KR0148030B1 publication Critical patent/KR0148030B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/38—Multi-hearth arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44—Details; Accessories
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00—Combustion
    • F23G2202/10—Combustion in two or more stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/10—Waste feed arrangements using ram or pusher

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)

Abstract

본 발명은 쓰레기 및 고형연료 건조 및 건류장치와 연소장치 그리고 건류장치에서 발생한 가스를 완전연소시키는 3차연소실겸 보일러로 이루어져 있으며, 건조 및 건류장치는 내열성을 확보하기 위해 수냉튜우브로 제작되어 있으며 연소장치는 공지한 스토카 또는 유동스토카를 사용한다. 3차연소실은 수냉 또는 내화벽돌로 구성된 공간내에 적절한 공기공급장치를 사용하여 재연소시키도록 하고 있으며 연소후에는 보일러내의 복사전열부를 거친 뒤 폐열회수장치로 가서 에너지를 회수한 뒤 공해처리장치를 거처 대기중으로 방류되게 한 것이다.The present invention comprises a tertiary combustion chamber and a boiler for completely burning waste and solid fuel drying and drying equipment and combustion apparatus and gas generated from the drying equipment, and the drying and drying equipment is made of a water cooling tube to ensure heat resistance and combustion. The apparatus uses known stocks or fluid stocks. The third combustion chamber is to be re-burned by using an appropriate air supply device in a space consisting of water-cooled or refractory bricks.After combustion, it passes through the radiant heat in the boiler, goes to the waste heat recovery system, recovers energy, and then goes through the pollution treatment device. To be discharged into the atmosphere.

Description

다단연소장치Multistage combustion device

제1도는 본 발명의 실시예시 단면도.1 is a cross-sectional view of an embodiment of the present invention.

제2도는 본 발명의 선회류 회수날개 설치도.2 is a swirl flow recovery wing installation of the present invention.

제3도는 본 발명의 선회류 날개 설치도.3 is a swirl flow wing installation of the present invention.

제4도는 본 발명의 유동스토커 발취 설치상태도.Figure 4 is a flow stocker extract installation state of the present invention.

제5도는 본 발명의 건류스토커 발취 사시도.Figure 5 is a perspective view of the dry stocker extract of the present invention.

제6도는 본 발명의 건류스토커 부분확대 단면도.Figure 6 is an enlarged cross-sectional view of the dry carbon stocker of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

A : 건조 및 건류스토커 B : 연소스토커A: Drying and Drying Stocker B: Combustion Stocker

C : 쓰레기 공급장치 D : 3차연소실 및 보일러C: Waste Supply Device D: Tertiary Combustion Chamber and Boiler

E : 재처리장치 F : 가스처리장치E: Reprocessing device F: Gas processing device

1 : 건류스토커튜우브 2 : 하부 건류스토커해더1: distillation stocker tube 2: lower distillation stocker header

2' : 상부 건류스토커해더 3 : 연소스토커2 ': upper dry gas stocker header 3: combustion stocker

4 : 공기공급구 5 : 2차공기공급선회류날개4: air supply port 5: secondary air supply swirl flow wing

7 : 배기가스출구 8 : 쓰레기투입푸셔7: Exhaust gas outlet 8: Waste input pusher

9 : 쓰레기호퍼 10 : 재처리수조9: waste hopper 10: reprocessing tank

11 : 재운송스크레퍼 12 : 건류스토커 상판11: rescraper 12: dry stocker tops

13 : 건류스토커 보호캐스타블 16 : 진동용모우터13: dry stalker protection castable 16: vibration motor

17 : 보일러드럼 18 : 스크류피더외통17: boiler drum 18: screw feeder outer cylinder

19 : 스크류식 건조기 20 : 스크류구동모터19: screw dryer 20: screw drive motor

본 발명은 쓰레기 뿐만 아니라 석탄, 목재등의 모든 고형연료에 적용할 수 있는 연소장치에 관한 것으로 수분함량이 높아 연소가 잘 안되는 것이나 발열량이 높아 연소에 문제가 있는 합성수지, 석탄, 폐유등을 다단으로 연시시키므로서 완벽하게 연소시킬수 있는 다단연소장치에 관한 것이다.The present invention relates to a combustion apparatus that can be applied to all solid fuels, such as coal, wood, as well as waste, which is not easily burned due to high moisture content or high calorific value such as synthetic resin, coal, waste oil, etc. The present invention relates to a multi-stage combustion device that can burn completely while burning.

근래의 생활수준 향상으로 쓰레기의 배출량이 급격히 증가하고 있으며, 특히 산업쓰레기는 합성수지 함량이 많이 발생하여 공해처리에 많은 애로가 되고 있다. 또한 수분함량도 높아 이를 모두 재래식 스토커에서만 건조시키도록 설계하면 건조스토커면적이 매우 커져서 제작비가 많이 들고 설치면적이 매우 커질 뿐 아니라 연소 효율도 나빠 재의 발생량이 많아지는 등 여러 가지 문제점이 있었고, 로터리킬른식을 사용하여 소각하는 것은 근본적으로 이에 사용되는 스토커식 화격자에서 연소가 진행되며 이부분은 킬른 내에서 완전연소되지 못한 잔재를 재연소 시키기 위한 것으로 스토커에서는 건류나 건조는 발생되지 않고 순수 연소용으로 사용되고 있어 건류 및 건조는 별도의 시스탬을 설치해야 하는 문제점이 있었다.The recent increase in the standard of living has led to a sharp increase in the amount of garbage discharged. In particular, industrial waste has a large amount of synthetic resin, which causes many difficulties in pollution treatment. In addition, the high moisture content is designed to dry only in the conventional stocker, the drying stocker area is very large, the production cost is high, the installation area is very large, the combustion efficiency is poor, the ash generation is increased, and there are various problems. Incineration using the formula is essentially a combustion in the stalker grate used for this, and this part is for reburning the residues that have not been completely burned in the kiln. Drying and drying has been used has a problem that must be installed a separate system.

본 발명은 이와같은 문제점을 감안하여 제1차연소실에서 연소된 연소가스로서 제2차연소실에서 건조 및 건류를 행하여 가스를 발생시킨 것을 제3차연소실에서 고온공기를 공급시켜 재연소시키므로서 완전연소를 행하게 하는 것으로 스토커의 면적을 획기적으로 줄여 제작비를 절감하고 완전연소에 의하여 공해를 줄이게 한 것이다.In view of the above problems, the present invention is a combustion gas combusted in the first combustion chamber, and dried and dried in the second combustion chamber to generate gas, thereby completely burning the gas by supplying hot air to the third combustion chamber. By dramatically reducing the area of the stalker, production costs are reduced and pollution is reduced by complete combustion.

본 발명은 쓰레기 및 고형연료 건조 및 건류장치와 1차연소장치 그리고 건류 장치에서 발생한 가스를 완전연소시키는 3차연소실겸 보일러로 이루어져 있으며, 슬러지 및 액상폐기물의 연소를 위해 노의 중심에 스크류식 건조장치를 구비하고 있다.The present invention consists of a tertiary combustion chamber and a boiler for completely burning the gas generated from the waste and solid fuel drying and distillation unit, the primary combustion unit, and the distillation unit, and a screw type drying unit at the center of the furnace for combustion of sludge and liquid waste. Equipped with.

건조 및 건류장치는 내열성을 확보하기 위해 수냉튜우브로 제작되어 있으며, 연소장치는 공지한 스토커 또는 유동스토커를 사용한다. 3차연소실은 수냉 또는 내화벽돌로 구성된 공간내에 적절한 공기공급장치를 사용하여 재연소시키도록 하고 있으며, 연소후에는 보일러내의 복사전열부를 거친 뒤 폐열회수장치로 들어가서 에너지를 회수한 뒤 공해처리장치를 거쳐 대기중으로 방류되게 한 것이다.The drying and distillation apparatus is made of water-cooled tubing to ensure heat resistance, and the combustion apparatus uses a known stocker or fluid stocker. The third combustion chamber is to be re-burned by using an appropriate air supply device in a space consisting of water-cooled or refractory bricks.After combustion, it goes through the radiant heat in the boiler and enters the waste heat recovery system to recover energy and then install the pollution treatment device. To be discharged into the atmosphere.

이상과 같이 된 본 발명을 첨부도면의 실시예시도에 의하셔 상세히 설명하면 다음과 같다.Referring to the present invention as described above in detail by the embodiment of the accompanying drawings as follows.

본 발명의 연소장치는 제1도에서와 같이 쓰레기공급장치(C)의 투입푸셔(8)에 의해 유압으로 투입시키면 2차연소실을 구성하는 건류 및 건조스토커(A)를 거치게 된다. 건류스토커(A)는 제 5 도에서와 같이 쓰레기 및 고형연료가 잘 밀려 내려가게 하기 위하여 하부건류스토커해더(2)와 상부스토커해더(2')사이에 건류스토커튜브(1)를 일정간격으로 경사지게 설치하고 그 저면에는 제 6 도와 같이 단열케스타블 또는 세라믹등을 내화단열재로 시공하여 가스가 가능한 한 냉각되지 않고 상승공급되게 한다. 건류 및 건조스토커(A)를 거친 쓰레기나 고형연료는 1차연소실(B)로 공급되어 연소가 일어나게 된다. 최종에 남은 재는 재처리장치(E)로 떨어지게 되며, 여기에 모여진 재는 스크레퍼(11)나 유압식 재처리장치등으로 처리하게 된다. 한편 슬러지와 액상폐기물은 콘베어를 통해 연소실 상단부분까지 이송된 뒤 중력에 의해 노의 중심에서 2차연소실까지 연장되게 설치한 스크류식 건조기(19)에 투입되게 된다. 스크류는 모터(20)에 의해 저속회전되므로 투입된 슬러지는 튜브내를 서서히 흘러서 낙하하게 되고 이 과정에서 노의 중심으로부터 열을 받아 건조되게 된다.When the combustion apparatus of the present invention is hydraulically introduced by the input pusher 8 of the waste supply device C as shown in FIG. 1, the combustion apparatus passes through the dry distillation and drying stocker A constituting the secondary combustion chamber. The dry stocker (A) has a fixed stocker tube (1) between the lower dry stocker header (2) and the upper stocker header (2 ') so that the waste and solid fuel is pushed down as shown in FIG. It is installed to be inclined at intervals, and on the bottom thereof, a heat insulating castable or ceramic is constructed with a fireproof heat insulating material as in the sixth degree so that the gas is ascended and supplied without being cooled as much as possible. Garbage or solid fuel passed through dry distillation and drying stocker (A) is supplied to the primary combustion chamber (B) and combustion occurs. The remaining ash falls to the reprocessing device E, and the ash collected therein is processed by the scraper 11 or the hydraulic reprocessing device. Meanwhile, the sludge and the liquid waste are transferred to the upper part of the combustion chamber through the conveyor and then introduced into the screw dryer 19 installed to extend from the center of the furnace to the secondary combustion chamber by gravity. Since the screw is rotated at a low speed by the motor 20, the introduced sludge flows slowly through the tube and in this process receives heat from the center of the furnace and dries.

이와같이 건조된 슬러지는 건류스토커(A) 상부에 뿌려지게 되어 그 곳에서 다른 쓰레기와 같은 연소과정을 밟게 된다. 스크류피더 외통(18) 파이프는 수개의 수냉파이프로 냉각시켜 과열로 인한 소손을 방지한다.The dried sludge is sprinkled on top of the dry distillation stocker (A) and is subjected to the same combustion process as other wastes there. The screw feeder outer cylinder 18 pipe is cooled by several water cooling pipes to prevent burnout due to overheating.

건류 및 건조장치(A)에서 발생된 가스는 3차연소실(3)로 들어가면서 선회류날개(5)로 이루어진 2차공기공급장치에서 공급된 공기와 난류를 일으키면서 혼합되어 연소되고 3차연소실(D)의 상부에 설치한 선회류회수날개(5')에 의하여 난류된 연소가스가 정상흐름으로 환원되어 원활하게 배출되므로 완전연소를 기할 수 있게 되며, 보일러드럼(17)의 튜우브군(10)에 의해 복사전열된 뒤 폐열회수 및 공해처리장치(F)로 배출되게 한다.The gas generated from the dry distillation and drying apparatus (A) enters the tertiary combustion chamber (3), mixes and combusts while causing turbulent air and the air supplied from the secondary air supply device consisting of the swirl flow vanes (5). The turbulent combustion gas (5 ') installed on the upper part of the D) is reduced to the normal flow and smoothly discharged to ensure complete combustion, the tubing group 10 of the boiler drum (17) Radiant heat transfer to the waste heat recovery and pollution treatment device (F).

상기와 같이 구성된 본 발명은 다음과 같이 쓰레기 및 석탄등을 연소시킨다.The present invention configured as described above burns garbage and coal as follows.

투입장치(C)의 호퍼(9)에 투입된 쓰레기 및 고형연료는 건류스토커(A)상을 지나게 되며, 이때 하부에서 올라오는 고온연소가스와 접촉하여 급격한 건조가 끝나고 건류가 이루어 지게 된다. 따라서 1차연소실(B)에서는 총이론 공기량의 30% 이하만 공급하여 건류되고 남은 숯(Char)으로된 연료만 태우게되며, 이에 따라 스토커의 면적은 ½ 내지 ⅓ 정도로 줄일 수 있을 뿐 아니라 완전건조후 연소되게 되므로서 수분이 많은 쓰레기나 고형연료도 완전히 연소시킬 수 있으며, 또한 발열량이 너무 높은 플라스틱이나 유해물질이 함유된 물질도 기화시킨 뒤 적정온도를 유지시켜 연소시킬 수 있는데 다이옥신등이 문제가 되는 경우는 고온으로 매연등의 유해물질만이 문제가 되니 이 경우는 되도록 저온으로 3차연소실(D)의 오도를 조절할 수 있어 가장 이상적인 연소를 시킬 수 있다.Garbage and solid fuel introduced into the hopper (9) of the input device (C) is passed through the dry distillation stocker (A), at this time is in contact with the hot combustion gas rising from the bottom is suddenly dried and dry is made. Therefore, in the primary combustion chamber (B), only 30% or less of the total theoretical air is supplied to burn only the fuel which is dried and left with char. Therefore, the area of the stocker can be reduced to about ½ to 아니라 and also after complete drying. As it is combusted, it can completely burn a lot of moisture and solid fuels, and it is also possible to vaporize a material containing too high calorific value or a plastic containing harmful substances and then burn it by maintaining a proper temperature. In this case, only the harmful substances such as soot are a problem at high temperature, so in this case, the degree of misinterpretation of the tertiary combustion chamber (D) can be controlled at a low temperature so that the most ideal combustion can be achieved.

본 발명은 2차연소실에서의 건류를 주요목적으로 하는 것으로, 1차연소실은 제 1 도에서와 같이 스토커로도 가능하지만 왕복식스토커 이외에 체인식이나 로울러식등 일반적인 다양한 스토커도 쉽게 응용될 수 있음은 물론이다.The present invention mainly aims at dry distillation in the secondary combustion chamber. The primary combustion chamber can be used as a stocker as shown in FIG. 1. However, in addition to the reciprocating stocker, various stockers such as chain type or roller type can be easily applied. Of course.

또한 본 발명은 용량이 커질 경우 건조.건류스토커(A)에서의 쓰레기공급이 푸셔의 미는 힘만으로는 부족할 경우 제 1 도의 16과 같이 건류스토커 전체를 부동되게 하여 쉽게 움직일 수 있게 한 뒤 12의 진동체를 달아 기계적으로 쓰레기가 앞으로 전진시킬 수 있도록 할 수도 있으며 다른방법으로는 푸셔가 2단으로 작동하여 쓰레기가 쌓이는 량에 따라 자동 또는 수동으로 앞부분까지 밀어주는 방법으로 이는 용량과 쓰레기의 종류에 따라 다양하게 응용할 수 있다.In addition, the present invention is dry when the capacity is increased. If the waste supply from the dry distillation stocker (A) is insufficient only by the pushing force of the pusher, as shown in Fig. 16 of Fig. It can also be used to mechanically move the garbage forward. Alternatively, the pusher operates in two stages, which automatically or manually pushes the front part according to the amount of garbage accumulated. Can be applied.

Claims (3)

쓰레기나 석탄등의 고형연료를 소각연소시킴에 있어 1차로 수냉스토커를 설치하여 연소가스로 2차연소실에서 건조 및 건류시킨 뒤 남은 숯과 같이 된 연료를 1차연소실에서 연소시키고 발생된 가스는 3차연소실에서 연소시키게 하는 것으로 뒷면에 내열철판을 붙이고 하부는 내화단열물질로 감싸준 수냉 튜우브사이사이로 연소가스가 흘러가서 중심부에 슬러지 건조기를 설치한 2차연소실의 건류 및 건조부로 잘 흘러갈 수 있게 하며, 쓰레기 종류에 따라 푸셔의 장입길이가 조절될 수 있도록 투입푸셔를 2단 또는 그 이상 다단으로 한 다단연소장치.In the incineration combustion of solid fuels such as waste and coal, a water-cooling stocker is installed first, dried and dried in a secondary combustion chamber as a combustion gas, and the remaining char is burned in the primary combustion chamber. Combustion in the combustion chamber is made by attaching a heat-resistant iron plate on the back and the lower part of the combustion chamber between the water-cooled tubs wrapped with the refractory insulation material so that it can flow to the dry and dry parts of the secondary combustion chamber where the sludge dryer is installed in the center. Multi-stage combustion device with two or more stages of the input pusher so that the length of the pusher can be adjusted according to the type of waste. 제 1 항에 있어서 수냉스토커를 부동시킨 뒤 진동되게 하여 쓰레기를 전진시키는 다단연소장치.The multistage combustion device according to claim 1, wherein the water-cooled stocker is floated and then vibrated to advance the waste. 노의 중심부에서 2차연소실까지 연자되게 스크류식 슬러지 건조기를 설치하여 스크류의 회전에 따라 슬러지가 강하되면서 건조된 뒤 연소하게 한 다단 연소장치.Multi-stage combustion device that installs screw type sludge drier from the center of the furnace to the secondary combustion chamber so that the sludge drops as the screw rotates and then burns.
KR1019940022484A 1994-09-07 1994-09-07 Multi-stage combustion system KR0148030B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101263770B1 (en) * 2011-06-14 2013-06-11 박중덕 ash discharge apparatus for solid fuel boiler
CN105351916A (en) * 2015-12-11 2016-02-24 胡金柱 Coal burning boiler with repeated combustion mode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101263770B1 (en) * 2011-06-14 2013-06-11 박중덕 ash discharge apparatus for solid fuel boiler
CN105351916A (en) * 2015-12-11 2016-02-24 胡金柱 Coal burning boiler with repeated combustion mode

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