KR0148509B1 - Method of dust incinerating by separating oxygen from air - Google Patents

Method of dust incinerating by separating oxygen from air Download PDF

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KR0148509B1
KR0148509B1 KR1019940014516A KR19940014516A KR0148509B1 KR 0148509 B1 KR0148509 B1 KR 0148509B1 KR 1019940014516 A KR1019940014516 A KR 1019940014516A KR 19940014516 A KR19940014516 A KR 19940014516A KR 0148509 B1 KR0148509 B1 KR 0148509B1
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air
oxygen
nitrogen
waste
incinerator
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KR1019940014516A
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Korean (ko)
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KR960001600A (en
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이형근
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이형근
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    • 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
    • F23G5/50—Control or safety arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
    • B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/12—Oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/102—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07005—Injecting pure oxygen or oxygen enriched air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

본 발명은 공기의 산소분리공급에 의한 폐기물소각방법에 관한 것으로 종래의 폐기물소각방법은 고압으로 공기를 송풍하여 연소하였으나 공기중에 혼합된 질소량이 많고 상대적으로 산소량이 적기 때문에 각종 폐기물의 소각시 불완전 연소에 의해 매연이 심한 문제점이 있었다.The present invention relates to a waste incineration method by oxygen separation supply of air, but the conventional waste incineration method is burned by blowing air at a high pressure, but incomplete combustion during incineration of various wastes because the amount of nitrogen mixed in the air and the amount of oxygen is relatively small There was a serious problem with soot.

본 발명은 종래의 이러한 문제점을 시정한 새로운 폐기물의 소각방법으로서 소각기에 송풍에 의하여 공기를 공급하는 과정에서 산소 질소분리기에 의하여 질소를 분리하고 분리된 높은 산소농도를 갖는 공기를 소각기에 송풍하여서 소각되는 폐기물이 완전연소에 가깝게 소각되도록 연소효율을 높여 공해물질의 방출을 최소화함과 동시에 폐기물 소각에 따른 비용을 절감시킬 수 있게 된다.The present invention is a new waste incineration method that corrects the problems of the prior art in the process of supplying air by blowing air to the incinerator to separate the nitrogen by the oxygen nitrogen separator and incinerated by blowing air having a high oxygen concentration separated in the incinerator It is possible to reduce the cost of waste incineration while minimizing the emission of pollutants by increasing the combustion efficiency so that the waste is incinerated close to complete combustion.

Description

공기의 산소분리 공급에 의한 폐기물의 소각방법Incineration method of waste by oxygen separation supply of air

본 발명은 실리콘고분자박막이 적층된 산소·질소분리기를 이용하여 송풍기를 통하여 흡입되는 공기 중에서 질소를 걸러낸 후 고농도의 산소 공기를 소각기로 공급하여 완전연소에 가깝게 소각물을 연소시킴으로 공해발생을 최소화 하는 공기의 산소분리 공급에 의한 폐기물의 소각방법에 관한 것이다.The present invention minimizes the generation of pollution by burning nitrogen incinerator close to complete combustion by supplying high concentration oxygen air to the incinerator after filtering nitrogen from the air sucked through the blower using an oxygen-nitrogen separator in which the silicon polymer thin film is laminated. It relates to a method of incineration of waste by oxygen separation supply of air.

일반적으로 종래의 소각방법은 소각로에 고압의 공기를 송풍기에 의하여 공급하면서 연소하는 방법이 통상적으로 알려진 소각방법이다.In general, the incineration method of the related art is an incineration method which is commonly known as the combustion method while supplying high-pressure air to the incinerator by a blower.

이러한 소각방법에 의해 소각되는 폐기물은 비록 가연성 물질인 경우에도 고분자물질인 경우 또는 다량의 탄소화합물의 경우 폐기물의 연소시에 다량의 매연이 발생하여 2차 공해를 유발하였다.The waste incinerated by this incineration method, even if it is a flammable material, in case of a high molecular material or a large amount of carbon compounds, a large amount of smoke is generated during combustion of the waste, causing secondary pollution.

이러한 공해를 방지하기 위한 방법으로 송풍기를 통하여 소각기에 공기를 고압으로 송풍하여 산소의 공급량을 증가시킴으로 폐기물의 소각시 발생되는 공해물질의 방출을 줄이도록 하였다. 즉, 공기를 고압으로 고급하면 저압으로 송풍하는 것에 비하여 산소의 공급량은 증대됨으로 폐기물의 연소작용을 촉진할 수 있는 것이다. 이와 아울러 소각기에서 배출되는 배기가스중 공해물질을 걸러내기 위한 별도의 장치를 설치하여야만 하였다.In order to prevent such pollution, the air was blown to the incinerator through a blower at high pressure to increase the oxygen supply, thereby reducing the emission of pollutants generated during incineration of waste. In other words, when the air is advanced to high pressure, the amount of oxygen is increased, compared to the blowing at low pressure, thereby promoting the combustion of waste. In addition, a separate device for filtering pollutants in the exhaust gas emitted from the incinerator had to be installed.

그러나 공기에는 80%정도가 질소이기 때문에 실제 고압으로 공급되는 공기중의 질소량을 제외한다면 산소량은 별로 많은 것이 아님을 알 수 있다. 따라서 소각기로 산소의 양을 증대시켜 공급할 수 있다면 폐기물의 연소를 완전연소에 가깝게 연소시켜 공기를 고압으로 송풍하지 않더라도 발생되는 공해물질이 최소로 줄일 수 있을 것이다.However, since the air is about 80% nitrogen, the amount of oxygen is not very high except the amount of nitrogen in the air supplied at high pressure. Therefore, if the incinerator can increase the amount of oxygen, it will be possible to reduce the pollutants generated even if the combustion of the waste close to the complete combustion, even if the air is not blown at high pressure.

본 발명의 목적은 소각기에 고농도의 산소공기를 공급하여 폐기물을 완전 연소시킴으로 공해물질의 발생량을 최소화 할 수 있게 하는데 있다.An object of the present invention is to supply a high concentration of oxygen air to the incinerator to completely burn the waste to minimize the amount of pollutants generated.

제1도는 본 발명의 실시예를 보인 공기공급계통도.1 is an air supply system showing an embodiment of the present invention.

제2도는 본 발명에서 사용되는 산소·질소분리기의 예시도이다.2 is an illustration of an oxygen / nitrogen separator used in the present invention.

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

1 : 소각기 2 : 송풍기1: incinerator 2: blower

3 : 산소·질소 분리기 4 : 여과필터3: oxygen / nitrogen separator 4: filtration filter

5 :공기흡입구 3' : 분리막5: air intake 3 ': separator

F : 실리콘고분자박막 S : 다공성지지체F: Silicon polymer thin film S: Porous support

최근 실리콘 고분자박막에 의하여 공기중 산소와 질소가 혼합된 공기를 투과시켰을 때 산소와 질소의 투과율이 2:1정도로 많은 양의 질소가 투과되지 못하고, 산소의 투과량이 훨씬 높게 되어 궁극적으로 공기중의 질소와 산소를 분리하는 작용이 있음을 알게 되었다. 이 실리콘 고분자박막 자체는 두께가 4000Å~1㎛정도로 얇아서 그대로는 필터기능을 수행할 수 없으나 다공성 물질을 매체로 하여 평면성 또는 곡면성을 이루도록 적충하면 공기를 산소와 질소로 분리할 수 있게 되었다.Recently, when oxygen mixed with oxygen and nitrogen in the air is permeated by the silicon polymer thin film, oxygen and nitrogen transmittance is about 2: 1, and a large amount of nitrogen cannot be permeated. It was found that there is an effect of separating nitrogen and oxygen. The silicon polymer thin film itself has a thickness of about 4000Å ~ 1㎛, so it cannot perform the filter function as it is, but when it is filled with a porous material as a medium to form flatness or curvature, air can be separated into oxygen and nitrogen.

본 발명의 폐기물 소각기에 공기를 공급하는 송풍통로의 일 구간에 상술한 실리콘 고분자박막을 이용한 산소·질소 분리기를 설치하고, 이 산소·질소 분리기를 통해 산소와 질소를 분리하여 산소량이 많은 공기를 소각기에 공급하므로써 폐기물이 완전연소에 가깝게 소각되게 하여 발생되는 공해물질이 최소가 되도록 한 것이다.An oxygen / nitrogen separator using the above-described silicon polymer thin film is installed in one section of a blow passage for supplying air to the waste incinerator of the present invention, and the oxygen and nitrogen are separated through the oxygen / nitrogen separator to incinerate the oxygen-rich air. By supplying to the waste, the waste is incinerated close to complete combustion to minimize the pollutants generated.

이하, 본 발명의 실시예를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

제1도는 본 발명의 실시예를 보인 공기공급과정을 나타낸 계통도이고, 제2도는 산소·질소분리기의 예시도로서, 참조번호 5는 송풍통로의 공기흡입구이다.FIG. 1 is a system diagram showing an air supply process according to an embodiment of the present invention, and FIG. 2 is an exemplary diagram of an oxygen / nitrogen separator, and reference numeral 5 is an air inlet of the air passage.

폐기물 소각기(1)에는 폐기물의 연소효율을 높이기 위해 공기를 공급해주는 송풍기(2)가 설치되어 있고, 외부의 공기를 흡입하기 위한 송풍통로가 송풍기(2)와 연결 설치되어 있는데, 이 송풍통로에 산소·질소분리기(3)가 설치되어 있다.The waste incinerator (1) is equipped with a blower (2) for supplying air to increase the combustion efficiency of the waste, and a blow passage for sucking outside air is connected to the blower (2), which is installed in the blow passage An oxygen / nitrogen separator 3 is provided.

이 산소·질소분리기(3)는 내부에 분리막(3')을 가로막아 두 개의 실을 이루고 있으며, 공기가 유입되는 쪽의 실에는 배기구가 설치되어 있다. 이 분리막(3')은 4000Å~1㎛두께의 실리콘 고분자박막(F)이 다공성지지체(S)에 도포되어 일체로 구성되어 있어 산소는 통과시키고 질소는 걸러내어 배기구로 배출시켜 대기 중으로 방출시키거나 별도로 설치된 질소통(6)으로 보내진다. 특히, 제2도에서와 같이 분리막(3')을 다수회 절곡시켜 면적을 넓힘으로써 산소의 통과량을 증대시키는 구조를 가지면 효과적이다.The oxygen / nitrogen separator 3 has two chambers interposed therebetween with a separation membrane 3 ', and an exhaust port is provided in the chamber on which air enters. The separator 3 'is composed of a silicon polymer thin film F having a thickness of 4000 kPa ~ 1 μm applied to the porous support S, so that oxygen is passed through and nitrogen is filtered and discharged into an exhaust port to be released into the atmosphere. It is sent to the nitrogen cylinder 6 installed separately. In particular, as shown in FIG. 2, it is effective to have a structure in which the passage amount of oxygen is increased by bending the separator 3 'a plurality of times to increase the area.

또한, 산소·질소분리기(3)로 공기가 유입되는 유입구에 여과필터(4)가 설치되어 있다. 이 여과필터(4)에 의해 산소·질소분리기(3)로 유입되는 공기를 여과시킴으로 산소·질소분리기(3)의 효율을 높인다.In addition, a filtration filter 4 is provided at an inlet port through which air enters the oxygen / nitrogen separator 3. The air flowing into the oxygen / nitrogen separator 3 by the filtration filter 4 is filtered to increase the efficiency of the oxygen / nitrogen separator 3.

폐기물을 소각시키기 위해 소각기(1)의 송풍기(2)를 가동시키면 외부의 공기가 공기흡입구(5)로 유입되어 송풍통로를 통해 소각기(1)로 공급된다. 그 과정에서 공기는 송풍통로에 설치된 산소·질소분리기(3)를 통과하면서 내부에 설치된 분리막(3')에 의하여 산소와 질소가 분리된다. 즉, 산소는 분리막(3')을 통과하게 되고 질소는 통과하지 못하고 걸러진다. 이 때문에 산소·질소분리기(3)의 분리막(3')을 기준으로 하여 공기가 유입되는 쪽의 실은 분리막(3')을 통과하지 못한 질소가 정체됨으로 고압측(H)이 되고, 그 반대쪽은 질소가 걸러진 산소농도가 높은 공기가 분포되기 때문에 저압측(L)이 된다. 이러한 상태에서 고압측(H)의 저농도 질소공기는 배기구를 통해 대기중으로 배출되거나 질소통(6)을 보내지고, 저압측(L)의 고농도 산소공기는 소각기(1)로 공급된다.When the blower 2 of the incinerator 1 is operated to incinerate the waste, external air flows into the air inlet 5 and is supplied to the incinerator 1 through a blower passage. In the process, the air passes through the oxygen / nitrogen separator 3 installed in the air passage, and oxygen and nitrogen are separated by the membrane 3 'installed therein. That is, oxygen passes through the separator 3 'and nitrogen does not pass and is filtered. For this reason, the chamber on the side where air is introduced, based on the separator 3 'of the oxygen / nitrogen separator 3, becomes a high pressure side (H) due to stagnation of nitrogen which has not passed through the separator 3', and the opposite side thereof. Since nitrogen-filtered air with high oxygen concentration is distributed, it becomes the low pressure side (L). In this state, the low concentration nitrogen air on the high pressure side (H) is discharged to the atmosphere or sent to the atmosphere through the exhaust port (6), the high concentration oxygen air on the low pressure side (L) is supplied to the incinerator (1).

이와 같이 소각기(1)로 공급되는 공기가 산소농도가 높은 상태로 공급되므로 폐기물은 완전연소에 가깝게 연소되어 공해물질의 발생이 최소화된다.In this way, since the air supplied to the incinerator 1 is supplied with a high oxygen concentration, the waste is burned close to complete combustion, thereby minimizing the generation of pollutants.

이상에서 살펴본 바와 같은 본 발명이 소각기(1)로 공급되는 공기가 산소·질소분리기(3)의 분리막(3')에 의하여 질소가 걸러짐으로 이를 통과한 공기 중에는 상대적으로 산소농도가 증대된다. 따라서 송풍기(2)의 동일한 작동에서 보다 많은 산소가 소각기(1)에 공급되고, 그로 인하여 폐기물의 연소효율을 촉진시켜 폐기물연소에 따른 공해물질(매연)의 발생률을 최소화 시킴으로 산업폐기물의 소각처리에 의해 발생되는 2차공해를 방지하여 환경오염을 방지할 수 있는 효과가 있다.As described above, the air supplied to the incinerator 1 is nitrogen-filtered by the separation membrane 3 'of the oxygen / nitrogen separator 3, and thus the oxygen concentration is relatively increased in the air passing therethrough. Therefore, more oxygen is supplied to the incinerator 1 in the same operation of the blower 2, thereby promoting the combustion efficiency of the waste, thereby minimizing the incidence of pollutants (soot) due to the combustion of the waste, and thus in the incineration treatment of industrial wastes. By preventing secondary pollution caused by the environmental pollution can be prevented.

또한 산소·질소분리기는 기계적 마모물질이 아니므로 한번 설치하면 물리적으로 파손되지 않는 한 오래 사용할 수 있고 유지비가 들지 않아 매우 경제적으로 소각기에 산소공기를 공급할 수 있는 효과가 있다. 특히 구조가 간단하므로 종래의 시설과 특별하게 다른 것이 없어 취급의 어려움이 없고 누구나 종래의 소각기처럼 폐기물을 소각하여도 매연 없이 폐기물을 소각할 수 있는 효과가 있다.In addition, the oxygen-nitrogen separator is not a mechanical wear material, so once installed, it can be used for a long time unless it is physically damaged, and it is economically effective to supply oxygen air to the incinerator because it does not cost maintenance. In particular, since the structure is simple, there is nothing specially different from the conventional facilities, and there is no difficulty in handling, and anyone can incinerate waste without smoke even if incineration of waste like a conventional incinerator.

Claims (2)

다공성 지지체(S)에 산소는 통과되고 질소는 걸러지는 일정두께의 실리콘고분자박막(F)을 도포하여 이루어지는 분리막(3')을 내부에 두 개의 실을 갖도록 가로막고 공기가 유입되는 쪽의 실의 측부에 상기 분리막에 의해 걸러진 질소공기를 배출시키는 배기구를 구비한 산소·질소분리기(3)를 구비한 후 이를 폐기물 소각기(1)의 송풍통로 일부구간에 설치하여 질소가 걸러지고 산소농도가 높아진 공기가 폐기물 소각기로 공급되게 하여 폐기물을 소각하는 것을 특징으로 하는 폐기물의 소각방법.The side of the chamber on which the air flows into the porous support S, and the membrane is separated from the membrane 3 'formed by applying a silicon polymer thin film F having a predetermined thickness through which nitrogen is filtered so as to have two threads therein. And an oxygen / nitrogen separator (3) having an exhaust port for discharging the nitrogen air filtered by the separator, and then installing it in a part of the blow passage of the waste incinerator (1) to filter the nitrogen and increase the oxygen concentration. The waste incineration method, characterized in that the waste incinerator to be supplied to the waste incinerator. 제1항에 있어서, 상기 실리콘고분자박막은 4000Å~1㎛두께인 것을 특징으로 하는 폐기물의 소각방법.The method of incineration of waste according to claim 1, wherein the silicon polymer thin film has a thickness of 4000 m to 1 m.
KR1019940014516A 1994-06-24 1994-06-24 Method of dust incinerating by separating oxygen from air KR0148509B1 (en)

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KR100844530B1 (en) * 2007-05-28 2008-07-08 주식회사 글로벌스탠다드테크놀로지 Device for purifying exhausted gas and method for purifying exhausted gas

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KR100714906B1 (en) * 2000-12-07 2007-05-04 코오롱건설주식회사 Rotary incineration kiln for scrap of low caloric value and fuzzy expert control system for controlling the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100844530B1 (en) * 2007-05-28 2008-07-08 주식회사 글로벌스탠다드테크놀로지 Device for purifying exhausted gas and method for purifying exhausted gas

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