KR100437711B1 - Treatment apparatus for injurious gas of spray drying machine and treatment method - Google Patents
Treatment apparatus for injurious gas of spray drying machine and treatment method Download PDFInfo
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- KR100437711B1 KR100437711B1 KR10-2004-0003283A KR20040003283A KR100437711B1 KR 100437711 B1 KR100437711 B1 KR 100437711B1 KR 20040003283 A KR20040003283 A KR 20040003283A KR 100437711 B1 KR100437711 B1 KR 100437711B1
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- 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
- B01D53/002—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 condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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- 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
- B01D53/26—Drying gases or vapours
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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Abstract
본 발명은 분무건조장치의 유해가스 처리장치 및 처리방법에 관한 것이다.The present invention relates to a harmful gas treatment apparatus and treatment method of the spray drying apparatus.
본 발명은 유해가스 처리를 위한 분무건조장치에 있어서, 가스이송송풍기(18)와 연결되고 상기 가스이송송풍기(18)를 통해 공급되는 순환가스의 온도를 저하시켜 주기 위해 설치되는 냉각기(21)와, 상기 냉각기(21)와 연결되며 상기 냉각기(21)를 통해 공급된 순환가스를 액화시켜 상기 액화된 순환가스를 재 이용하기 위해 설치되는 응축기(22)와, 상기 응축기(22)에 공급된 냉매가 연결된 냉매공급펌프(25)의 작동에 의해 상기 냉매의 저장을 위해 설치되는 유량/온도조절조(27)와, 상기 유량/온도조절조(27)에 저장된 냉매가 연결된 냉매순환펌프(26)를 통해 공급되며 공급된 냉매의 온도를 낮추어 이를 유량/온도조절조(27)로 재 순환시켜 주기위한 냉동기(28)와, 상기 냉동기(28)에서 발생하는 열을 흡수하기 위해 설치되는 냉각탑(30) 및 상기 냉각탑에 냉각수를 공급하기 위한 냉각수공급펌프(29)를 분무건조장치와 연계/설치하여 된 구조이다.The present invention provides a spray drying apparatus for treating harmful gases, the cooler 21 being connected to the gas transport blower 18 and installed to lower the temperature of the circulating gas supplied through the gas transport blower 18. And a condenser 22 connected to the cooler 21 and installed to reuse the liquefied circulating gas by liquefying the circulating gas supplied through the cooler 21, and the coolant supplied to the condenser 22. Is connected to the flow rate / temperature control tank 27 is installed for the storage of the refrigerant by the operation of the refrigerant supply pump 25 is connected to the refrigerant circulation pump 26 connected to the refrigerant stored in the flow rate / temperature control tank 27 The cooling unit 30 and the cooling tower 30 for lowering the temperature of the supplied refrigerant to recirculate it to the flow rate / temperature control tank 27, and absorbs the heat generated by the freezer (28) ) And cooling water to the cooling tower Class is the chilled water supply pump (29) to the installation and connection / spray-drying device structure for.
또한 본 발명은 가스이송송풍기(18)에서 45℃∼55℃의 온도로 유입되는 순환가스를 냉각기(21)를 통해 온도를 5℃∼15℃로 저하하고 상기 5℃∼15℃로 저하된 순환가스를 응축기(22)로 보내 순환가스의 온도를 -30℃∼-40℃로 낮추어 유해물질을 액화시킨 상태로 저장/처리하며 응축기(22)를 통해 -30℃∼-40℃의 온도로 냉각된 가스를 냉각기(21)에 투입하여 온도가 45℃∼55℃인 가스의 온도를 5℃∼15℃정도 낮추어주되, 냉각기(21)에서 유출되는 가스를 -30℃∼-40℃에서 5℃∼15℃정도 승온된 상태에서 건조공기부로워(2)에 흡입되어 재순환 될 수 있도록 한 분무건조장치의 유해가스 처리방법도 제공한다.In the present invention, the circulating gas flowing from the gas transfer fan 18 at a temperature of 45 ° C to 55 ° C is lowered to 5 ° C to 15 ° C through the cooler 21 and lowered to 5 ° C to 15 ° C. The gas is sent to the condenser 22 to reduce the temperature of the circulating gas to -30 ° C. to −40 ° C. to store / process the hazardous substance in a liquefied state, and to cool the temperature to −30 ° C. to −40 ° C. through the condenser 22. The prepared gas is introduced into the cooler 21 to lower the temperature of the gas having a temperature of 45 ° C to 55 ° C by 5 ° C to 15 ° C, and the gas flowing out of the cooler 21 is 5 ° C to -30 ° C to -40 ° C. There is also provided a method for treating harmful gas of the spray drying apparatus, which is sucked into the dry air blower (2) while being heated to about 15 ° C. to be recycled.
본 발명은 기존의 분무건조장치에 간단히 연계/설치하여 유해가스를 처리후 대기로 즉시 방출하지 아니하고 이를 응축시켜 액체화하여 재이용하거나 별도로 처리할 수 있도록 함은 물론 잔여가스는 승온 시켜 공정에 재순환 이용할 수 있게 하여 오염물질의 배출 없이 유해물질 제거공정이 연속적으로 순환될 수 있도록 함으로서 유해가스에 의한 환경오염을 방지하는 효과가 있다.The present invention is simply connected to / installed in the existing spray drying apparatus not to immediately release the harmful gas to the atmosphere after treatment, it can be condensed by the liquid to reuse or treat separately, as well as the residual gas can be used to recycle to the process In this way, the process of removing harmful substances can be continuously circulated without releasing pollutants, thereby preventing environmental pollution by harmful gases.
Description
본 발명은 분무건조장치의 유해가스 처리장치 및 처리방법에 관한 것이다.The present invention relates to a harmful gas treatment apparatus and treatment method of the spray drying apparatus.
본 발명은 환경오염은 물론 인체에 유해한 가스방출의 우려가 있는 제반 화학제품 생산업체 등의 유해가스 처리를 위해 설치되는 분무건조장치와 연계/설치하여 기화된 유해가스 중에 남아있는 유해한 물질을 응축시켜 이를 액체로 환원하여 재사용 할 수 있도록 하고 처리된 가스를 다시 재 순환시켜 사용할 수 있도록 함으로서 유해물질의 배출을 차단시키고자 한 것이다.The present invention by condensing harmful substances remaining in the vaporized harmful gas by connecting / installing in conjunction with the spray drying apparatus installed for the treatment of harmful gases of various chemical product manufacturers, such as environmental pollution as well as harmful emissions of the human body. This is to reduce the discharge of harmful substances by reducing the liquid to be reused and to recycle the treated gas again.
화학원료를 이용하여 제품을 생산하는 생산업체는 환경법에 규정된 유해물질 처리시설을 의무적으로 갖추도록 하여 유해물질이 대기중으로 방출되지 않도록 이를 적극적으로 규제하고 있다.Producers who produce products using chemical raw materials are actively mandating that hazardous substances are not released into the atmosphere by mandatory installation of hazardous substance treatment facilities specified in environmental laws.
이를 위해 화학물질을 다루는 업체의 경우 주로 도 3에서와 같은 분무건조타입의 처리장치를 설치하여 발생되는 유해물질의 방출을 최소화하고 있다.To this end, companies dealing with chemicals minimize the release of harmful substances generated by installing spray-drying treatment devices, as shown in FIG. 3.
이러한 종래 유해물질 분무건조장치의 처리과정에 대하여 설명하면 다음과 같다.Referring to the treatment process of the conventional hazardous substance spray drying apparatus as follows.
상기 분무건조장치는 건조공기흡입필터(1)와 건조공기부로워(2)를 거쳐 공기를 흡입하게 되며 흡입된 공기는 건조공기히터(3)에 의해 공기의 온도가 80℃∼120℃로 상승된 상태로 건조공기필터(4)를 거치면서 일부 이물질이 여과된 상태로 분무건조기(12)로 유입되게 된다.The spray drying apparatus sucks air through the dry air suction filter (1) and the dry air blower (2), and the sucked air is heated to 80 ° C to 120 ° C by the dry air heater (3). While passing through the dry air filter 4 in a state where some foreign matter is introduced into the spray dryer 12 in a filtered state.
한편, 용액탱크(5)에는 그 내부로 용제와 원료가 함께 투입됨과 동시에 상부에 설치된 교반기(6)가 회전하게 되고 이때 상기 원료와 용재는 용액탱크(5)내부에는 원료와 용재가 섞인 혼합된 용액이 만들어지게 된다.On the other hand, the solvent and the raw material is introduced into the solution tank (5) and at the same time the stirrer (6) installed on the top is rotated at this time, the raw material and the solvent is mixed with the raw material and the solvent inside the solution tank (5) The solution is made.
상기 용액은 용액이송펌프(7)의 작동에 의해 용액정량저장조(8)로 보내지게 되며 이어서 용액이 용액정량펌프(10)에 의해 용액분무장치(11)로 이송되어 이송된 용액이 분무건조기(12)내부에서 분무됨과 동시에 상기 고온의 건조공기와 열 교환이 이루어져 수분은 증기화 되고 다음 공정인 싸이크론(14)과 백필터(16)를 거쳐 가스이송송풍기(18)에서 승압되어 흡착탑(19)의 외부유출배관(20)을 통해 대기 중으로 방출시키는 것이 일반적이며 용제를 물로 사용하거나 유해물질의 배출이 극히 적은 경우에도 대부분 이러한 분무건조장치를 채택하고 있다.The solution is sent to the solution metering reservoir (8) by the operation of the solution transfer pump (7) and then the solution is transferred to the solution spraying device (11) by the solution metering pump (10) sprayed dryer ( 12) At the same time it is sprayed inside and the heat exchange with the high temperature dry air is vaporized and the water vaporized in the next step through the cyclone (14) and the bag filter 16 to the gas transfer blower (18) to the adsorption tower (19) It is common to discharge to the air through the external outflow pipe 20 of the, and even in the case of using a solvent as water or the emission of harmful substances is extremely small, such a spray drying apparatus is adopted.
그 밖의 유해물질 처리방법에 있어서도, 알려진 흡착법과 같은 경우에는 유해 배출가스에 흡착탑을 설치하여 흡착제로서 활성탄소를 일정 높이로 투입하여 이곳을 통과하는 시간에 유해물질이 흡착되도록 하였으나 초기에는 흡착효율이 좋은 편이지만 시간이 경과함에 따라 효율이 저하되어 활성탄 흡착제를 수시로 교체해도 100% 효율을 기대할 수 없을 뿐더러 교체에 따른 인건비와 재료비를 감당하기 가 어렵다.In the case of other hazardous materials treatment methods, in the case of known adsorption methods, adsorption towers were installed in hazardous exhaust gases to inject activated carbon at a certain height as an adsorbent so that harmful substances were adsorbed at the time passing therethrough. It is good, but as time goes by, efficiency decreases, so even if you replace activated carbon adsorbent from time to time, you cannot expect 100% efficiency, and it is difficult to meet the labor and material costs.
그리고 세정법의 경우에 있어서도 기화된 가스를 물로 세정하는 방법으로 세정효율이 80% 전후이기 때문에 20∼30%의 유해물질이 대기 중에 방출되는 위험이 있고 세정수 처리가 용이하지 않으며 생물학적 처리시 공기투입으로 인하여 위해물질이 대기 중으로 기화될 위험이 있어 이러한 방법 역시 처리공법에 문제가 제기되고 있는 실정이다.In the case of the cleaning method, the vaporized gas is washed with water, and since the cleaning efficiency is around 80%, there is a risk of releasing 20-30% of harmful substances into the atmosphere, and the treatment of the washing water is not easy. As a result, there is a risk of hazardous substances vaporizing into the atmosphere, which is a problem in the treatment method.
본 발명은 환경오염은 물론 인체에 유해한 가스방출의 우려가 있는 제반 화학제품 생산업체 등의 유해가스 즉 메틸콜로라이드(Methyl Chloride) 등의 처리를 위해 설치되는 분무건조장치와 연계/설치하여 기화된 유해가스 중에 남아있는 유해한 물질을 응축시켜 이를 액체로 환원하여 재사용 할 수 있도록 하고 처리된 가스를 다시 재 순환시켜 사용할 수 있도록 함으로서 유해물질의 배출을 차단시키고자 함을 목적으로 한다.The present invention vaporizes in conjunction with the spray drying apparatus installed for the treatment of harmful gases, such as methyl chloride (Methyl Chloride), such as various chemical product manufacturers that may emit harmful gases to the human body as well as environmental pollution It aims to block the discharge of harmful substances by condensing harmful substances remaining in harmful gases, reducing them to liquids, reusing them, and recycling the treated gases for reuse.
이를 위해 본 발명은 유해가스 처리를 위한 분무건조장치에 있어서, 가스이송송풍기와 연결되고 상기 가스이송송풍기를 통해 공급되는 순환가스의 온도를 저하시켜 주기 위해 설치되는 냉각기와, 상기 냉각기와 연결되며 상기 냉각기를 통해 공급된 순환가스를 액화시켜 상기 액화된 순환가스를 재 이용하기 위해 설치되는 응축기와, 상기 응축기에 공급된 냉매가 연결된 냉매공급펌프의 작동에 의해 상기 냉매의 저장을 위해 설치되는 유량/온도조절조와, 상기 유량/온도조절조에 저장된 냉매가 연결된 냉매순환펌프를 통해 공급되며 공급된 냉매의 온도를 낮추어 이를 유량/온도조절조로 재 순환시켜 주기위한 냉동기와, 상기 냉동기에서 발생하는 열을 흡수하기 위해 설치되는 냉각탑 및 상기 냉각탑에 냉각수를 공급하기 위한 냉각수공급펌프를 분무건조장치와 연계/설치하여 됨을 특징으로 하는 유해가스 처리장치를 제공하고자 한다.To this end, the present invention is a spray drying apparatus for the treatment of harmful gas, connected to the gas transport blower and the cooler is installed to reduce the temperature of the circulating gas supplied through the gas transport blower, the cooler is connected to the Flow rate / installed for the storage of the refrigerant by the operation of the condenser is installed to liquefy the circulating gas supplied through the cooler to reuse the liquefied circulating gas, and the refrigerant supply pump connected to the refrigerant supplied to the condenser Refrigerator for supplying a temperature control tank and a refrigerant circulation pump connected to the refrigerant stored in the flow rate / temperature control tank to lower the temperature of the supplied refrigerant and recirculate it to the flow rate / temperature control tank, and absorbs heat generated from the freezer. Cooling tower is installed to the cooling tower and the cooling water supply pump for supplying cooling water to the cooling tower It is intended to provide a noxious gas treatment device, which is characterized in that it is connected / installed with a non-drying device.
또한 본 발명은 가스이송송풍기에서 45℃∼55℃의 온도로 유입되는 순환가스를 냉각기를 통해 온도를 5℃∼15℃로 저하하고 상기 5℃∼15℃로 저하된 순환가스를 응축기로 보내 순환가스의 온도를 -30℃∼-40℃로 낮추어 유해물질을 액화시킨 상태로 저장/처리하며 응축기를 통해 -30℃∼-40℃의 온도로 냉각된 가스를 냉각기에 투입하여 온도가 45℃∼55℃인 가스의 온도를 5℃∼15℃정도 낮추어주되, 냉각기에서 유출되는 가스를 -30℃∼-40℃에서 5℃∼15℃정도 승온된 상태에서 건조공기송풍기에 흡입되어 재순환될 수 있도록 함을 특징으로 하는 분무건조장치의 유해가스 처리방법도 제공한다.In addition, the present invention is to reduce the temperature of the circulating gas flowing into the temperature of 45 ℃ to 55 ℃ in the gas transfer fan to 5 ℃ to 15 ℃ and the circulating gas lowered to 5 ℃ to 15 ℃ to the condenser through the circulator The temperature of the gas is lowered from -30 ℃ to -40 ℃, and stored / processed in the state of liquefaction of toxic substances. The gas cooled to -30 ℃ to -40 ℃ through the condenser is put into the cooler, and the temperature is 45 ℃ ~ Lower the temperature of the gas at 55 ° C by 5 ° C to 15 ° C, and allow the gas flowing out of the cooler to be sucked into the dry air blower and recycled while being heated at -30 ° C to -40 ° C to 5 ° C to 15 ° C. It also provides a method for treating harmful gases of the spray drying apparatus characterized in that.
도 1은 본 발명 처리장치의 전체구성도1 is an overall configuration diagram of a treatment apparatus of the present invention
도 2는 본 발명의 요부 발췌 구성도Figure 2 is an excerpt of the present invention configuration
도 3은 종래 분무건조장치의 발췌구성도Figure 3 is an excerpt configuration diagram of a conventional spray drying apparatus
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
21 : 냉각기 22 : 응축기21: cooler 22: condenser
23 : 자동펌프 24 : 저장탱크23: automatic pump 24: storage tank
25 : 냉매공급펌프 26 : 냉매순환펌프25: refrigerant supply pump 26: refrigerant circulation pump
27 : 유량/온도조절조 28 : 냉동기27: flow rate / temperature control tank 28: refrigerator
29 : 냉각수공급펌프 30 : 냉각탑29: cooling water supply pump 30: cooling tower
본 발명은 유해가스 처리를 위한 분무건조장치에 있어서, 가스이송송풍기(18)와 연결되고 상기 가스이송송풍기(18)를 통해 공급되는 순환가스의 온도를 저하시켜 주기 위해 설치되는 냉각기(21)와, 상기 냉각기(21)와 연결되며 상기 냉각기(21)를 통해 공급된 순환가스를 액화시켜 상기 액화된 순환가스를 재 이용하기 위해 설치되는 응축기(22)와, 상기 응축기(25)에 공급된 냉매가 연결된 냉매공급펌프(25)의 작동에 의해 상기 냉매의 저장을 위해 설치되는 유량/온도조절조(27)와, 상기 유량/온도조절조(27) 저장된 냉매가 연결된 냉매순환펌프(26)를 통해 공급되며 공급된 냉매의 온도를 낮추어 이를 유량/온도조절조(27)로 재 순환시켜 주기위한 냉동기(28)와, 상기 냉동기(28)에서 발생하는 열을 흡수하기 위해 설치되는 냉각탑(30) 및 상기 냉각탑에 냉각수를 공급하기 위한 냉각수공급펌프(29)를 분무건조장치와 연계/설치하여 된 구조이다.The present invention provides a spray drying apparatus for treating harmful gases, the cooler 21 being connected to the gas transport blower 18 and installed to lower the temperature of the circulating gas supplied through the gas transport blower 18. And a condenser 22 connected to the cooler 21 and installed to liquefy the circulating gas supplied through the cooler 21 to reuse the liquefied circulating gas, and the coolant supplied to the condenser 25. By the operation of the refrigerant supply pump 25 is connected to the flow rate / temperature control tank 27 is installed for the storage of the refrigerant, and the refrigerant circulation pump 26 is connected to the refrigerant stored in the flow rate / temperature control tank 27 The refrigerator 28 is provided to lower the temperature of the supplied refrigerant and recirculates it to the flow rate / temperature control tank 27, and the cooling tower 30 is installed to absorb heat generated from the refrigerator 28. And supplying cooling water to the cooling tower. A cooling water supply pumps 29 to the installation and connection / spray-drying device structure for.
또한 본 발명은 가스이송송풍기(18)에서 45℃∼55℃의 온도로 유입되는 순환가스를 냉각기(21)를 통해 온도를 5℃∼15℃로 저하하고 상기 5℃∼15℃로 저하된 순환가스를 응축기(22)로 보내 순환가스의 온도를 -30℃∼-40℃로 낮추어 유해물질을 액화시킨 상태로 저장/처리하며 응축기(22)를 통해 -30℃∼-40℃의 온도로 냉각된 가스를 냉각기(21)에 투입하여 온도가 45℃∼55℃인 가스의 온도를 5℃∼15℃정도 낮추어주되, 냉각기(21)에서 유출되는 가스를 -30℃∼-40℃에서 5℃∼15℃정도 승온된 상태에서 건조공기부로워(2)에 흡입되어 재순환 될 수 있도록 한 분무건조장치의 유해가스 처리방법도 제공한다.In the present invention, the circulating gas flowing from the gas transfer fan 18 at a temperature of 45 ° C to 55 ° C is lowered to 5 ° C to 15 ° C through the cooler 21 and lowered to 5 ° C to 15 ° C. The gas is sent to the condenser 22 to reduce the temperature of the circulating gas to -30 ° C. to −40 ° C. to store / process the hazardous substance in a liquefied state, and to cool the temperature to −30 ° C. to −40 ° C. through the condenser 22. The prepared gas is introduced into the cooler 21 to lower the temperature of the gas having a temperature of 45 ° C to 55 ° C by 5 ° C to 15 ° C, and the gas flowing out of the cooler 21 is 5 ° C to -30 ° C to -40 ° C. There is also provided a method for treating harmful gas of the spray drying apparatus, which is sucked into the dry air blower (2) while being heated to about 15 ° C. to be recycled.
도면부호중 (31)은 조정반을 나타낸다.Reference numeral 31 in the drawing denotes a control panel.
본 발명은 유해물질의 처리를 위한 분무건조장치의 가스이송송풍기(18)까지의 과정은 종래와 동일하다.The present invention is the same process as the conventional gas transfer blower 18 of the spray drying apparatus for the treatment of harmful substances.
본 발명은 냉각기(21)를 가스이송송풍기(18)와 연결하여 상기 가스이송송풍기(18)를 통해 공급되는 순환가스의 온도를 저하시켜 주게 된다.In the present invention, the cooler 21 is connected to the gas transfer blower 18 to lower the temperature of the circulating gas supplied through the gas transfer blower 18.
그리고 응축기(22)를 상기 냉각기(21)와 연결하여 상기 냉각기(21)를 통해 공급된 순환가스를 액화시켜 상기 액화된 순환가스를 재 이용하게 된다.The condenser 22 is connected to the cooler 21 to liquefy the circulating gas supplied through the cooler 21 to reuse the liquefied circulating gas.
또한 유량/온도조절조(27)를 응축기(25)와 냉매공급펌프(25)로 연결하여 상기 응축기(25)에 공급된 초저온 수냉식 스크류 압축냉동기를 유량/온도조절조(27)에 저장시키게 된다.In addition, the flow rate / temperature control tank 27 is connected to the condenser 25 and the refrigerant supply pump 25 to store the cryogenic water-cooled screw compressor supplied to the condenser 25 in the flow rate / temperature control tank 27. .
한편, 냉동기(28)는 상기 유량/온도조절조(27)와 냉매순환펌프(26)로 연결하여 상기 냉매순환펌프(26)를 통해 공급된 냉매의 온도를 낮추어 이를 유량/온도조절조(27)로 재 순환시켜 주게 된다.On the other hand, the refrigerator 28 is connected to the flow rate / temperature control tank 27 and the refrigerant circulation pump 26 to lower the temperature of the refrigerant supplied through the refrigerant circulation pump 26 to the flow rate / temperature control tank 27 Will be recycled.
그리고 상기 냉동기(28)에서 발생하는 열을 흡수하기 위해 냉각탑(30) 및 상기 냉각탑에 냉각수를 공급하기 위한 냉각수공급펌프(29)도 함께 설치하여 긱존에 구성되어 있는 분무건조장치와 연계/설치하여 이러한 일련의 처리장치를 작동시키게 되는 것이다.In addition, the cooling tower 30 and the cooling water supply pump 29 for supplying the cooling water to the cooling tower to absorb the heat generated by the refrigerator 28 are also installed in conjunction with the spray drying apparatus configured in the gig zone This series of processing devices will be activated.
다만 본 발명은 가스이송송풍기(18)를 거쳐 냉각기(21)로 유입되면서 45℃∼55℃의 온도를 갖는 유해가스가 응축기(22) 입구에서 5℃∼10℃로 그 온도가 1차로 저하되고 응축기(22) 하단에 이르러서 -3℃∼-40℃로 온도가 급격히 낮아지게 되어 기체중에 포함된 유해물질이 응축 액체화 되어 응축기(22) 하부공간에 저장되고 이후 액체화된 유해물질은 에어펌프(23)에 의해 저장탱크(24)로 이송되어 재사용 또는 처리된다.However, in the present invention, the harmful gas having a temperature of 45 ° C. to 55 ° C. is introduced into the cooler 21 through the gas transfer fan 18, and the temperature is first lowered to 5 ° C. to 10 ° C. at the inlet of the condenser 22. When the temperature reaches the bottom of the condenser 22, the temperature is drastically lowered from -3 ° C to -40 ° C. Thus, harmful substances contained in the gas are condensed and liquefied and stored in the lower space of the condenser 22. Is transferred to the storage tank 24 and reused or processed.
한편, 본 발명 응축기(22)의 응축냉매는 초저온 수냉식 스크류 압축냉동기에서 공급되는데 냉매의 온도가 -35℃∼-45℃로 공급되어 유량/온도조절조(27)를 거쳐 냉매공급펌프(25)를 통해서 응축냉매로 공급하게 되며 순환(회수)되는 냉매는 유량/온도 조절조에 저장되었다가 냉매순환펌프(26)를 통해서 -30℃∼-40℃의 냉매를 냉동기(28)의 과냉각기에 보내어 냉매온도를 -30℃∼-40℃로 저하시켜 유량/온도조절조(27)로 순환시켜 연속운전을 하게된다.On the other hand, the condensation refrigerant of the condenser 22 of the present invention is supplied from a cryogenic water-cooled screw compressor, the temperature of the refrigerant is supplied to -35 ℃ ~ -45 ℃ through the flow rate / temperature control tank 27 the refrigerant supply pump 25 It is supplied to the condensation refrigerant through the refrigerant is circulated (recovered) is stored in the flow rate / temperature control tank and the refrigerant from the -30 ℃ ~-40 ℃ through the refrigerant circulation pump 26 to the supercooler of the freezer (28) The temperature is lowered to -30 ° C to -40 ° C and circulated to the flow rate / temperature control tank 27 for continuous operation.
또한 본 발명은 냉동기(28)에서 발생하는 열을 흡수하기 위한 장치로 냉각탑(30)을 설치하여 냉동기(28)에서 발생하는 열을 흡수하는데 필요한 냉각수의 온도는 냉동기에서 유출되는 냉각수의 온도를 10℃로 저하시켜서 사용하게 되며 또한 냉각탑(30)에서 냉각수를 공급하는 냉각수공급펌프(29)도 작동하여 연속운전에 들어간다.In addition, the present invention is to install the cooling tower 30 as a device for absorbing the heat generated in the freezer 28, the temperature of the cooling water required to absorb the heat generated in the freezer 28 is the temperature of the cooling water flowing out of the freezer 10 It is used by lowering to ℃ and the cooling water supply pump 29 for supplying the cooling water from the cooling tower 30 also operates to enter the continuous operation.
본 발명의 가스 흐름에 대하여 더욱 구체적으로 설명하면 냉각기(21) 입구에서 45℃∼55℃인 가스가 응축기(22) 하단에서는 -30℃∼-40℃로 낮아지게 되며 가스 중에 유해물질을 액화시켜 액체로 만들어져 응축기(22) 하단에 저장하여 처리하게 되고 응축기(22)를 떠난 가스는 -30℃∼-40℃의 온도로 다시 냉각기(21)에 투입되어 45℃∼55℃의 가스를 5℃∼15℃정도 저하시키게 되며 냉각기(21)에서 유출되는 가스는 -30℃∼-40℃에서 5℃∼15℃로 승온된 상태에서 건조공기부로워(2)에 흡입되어 재순환 사용됨으로 연속운전이 가능하게 되는 것이다.In more detail, the gas flow of the present invention is 45 ℃ to 55 ℃ at the inlet of the cooler 21 is lowered to -30 ℃ to -40 ℃ at the bottom of the condenser 22 to liquefy harmful substances in the gas The liquid is made of liquid and stored at the bottom of the condenser 22 to be treated. The gas leaving the condenser 22 is introduced into the cooler 21 again at a temperature of -30 ° C to -40 ° C, and the gas of 45 ° C to 55 ° C is 5 ° C. The gas flowing out from the cooler 21 is sucked into the dry air blower 2 while being heated up from -30 ° C to -40 ° C to 5 ° C to 15 ° C. It becomes possible.
이렇게 재순환 되는 가스는 전단계인 분무건조장치의 히터를 거치면서 약 80℃-120℃까지 상승되고 건조공기여과기(4)를 거치면서 재차 불순물을 재거한 후 순수한 열 매체를 분무건조기(12)로 공급 되게 된다.The recirculated gas is raised to about 80 ° C-120 ° C while passing through the heater of the spray dryer, which is the previous step, and the impurities are again removed while passing through the dry air filter (4), and the pure heat medium is supplied to the spray dryer (12). Will be.
한편, 분무용액을 제조하는 용액탱크(5)에서는 용제와 원료를 첨가하여 교반기(6)에 의거 완전 혼합된 용액으로 만들어지게 되며 상기 용액은 용액이송펌프(7)를 작동시켜 용액정량저장조(8)에 보내지고 용액정량이송펌프(10)로 용액분무장치(11)에 보내져 미세한 분무상태 약 80㎛로 분무건조기(12)에서 열풍과 분무된 수분이 열 교환되어 수분은 증발되어 다음 공정으로 이동되고 건조된 제품 일부는 제1건조제품 저장탱크에 저장되고 다음 공정인 싸이크론(14)에서 기체와 분체가 분리되어 일부제품이 제3건조제품저장탱크(15)에 저장되고 잔여가스는 최종 여과기인 백필터(16)로 보내져 기체와 분체가 분리되어 제품은 제3건조제품저장탱크(17)에 저장되고 가스는 가스이송송풍기(18)의해 승압되면서 냉각기(21)는 일련의 순환시스템을 통해 유해가스를 배출을 차단하게 되는 것이다.On the other hand, in the solution tank (5) for producing a spray solution is added to the solvent and the raw material is made of a fully mixed solution based on the stirrer (6) and the solution is operated by the solution transfer pump (7) solution quantitative storage tank (8) ) And the solution is sent to the solution spraying device (11) by the transfer pump (10) to a fine spray state of about 80㎛ in the spray dryer 12, the hot air and the sprayed water is heat exchanged, the water is evaporated and moved to the next process And dried part of the product is stored in the first dry product storage tank, gas and powder are separated in the next process cyclone (14), some products are stored in the third dry product storage tank (15) and the residual gas is the final filter The gas and powder are sent to the bag filter 16 so that the product is stored in the third dry product storage tank 17 and the gas is boosted by the gas transfer blower 18. The cooler 21 is harmful through a series of circulation systems. Exhaust gas It will be blocked.
즉, 본 발명은 분무건조기(12)를 경유한 가스가 싸이크론(14)과 백필터(16)를 거쳐 가스이송송풍기(18)로부터 유동압력을 얻어 냉각기(21) 입구에서 약 45℃∼55℃ 전후가 되기 때문에 열 흐름의 충격을 피하기 위하여 냉각기(21)와 응축기(22)로 나누어 열 교환을 시도하게 된다.That is, in the present invention, the gas passing through the spray dryer 12 obtains the flow pressure from the gas transfer fan 18 via the cyclone 14 and the bag filter 16, and is about 45 ° C to 55 ° C at the inlet of the cooler 21. In order to avoid the impact of heat flow because the front and rear will be divided into the cooler 21 and the condenser 22 to attempt heat exchange.
그리고 냉각기(21)로부터 공급되는 45℃∼55℃의 온도를 갖는 가스에 열 낙차를 두어 냉각기(21)에서 나온 5℃∼15℃의 가스를 응축기(22)에 투입하여 -30℃∼-40℃로 응축함으로서 유해가스가 액체화 되어 응축기 저부에 수집되고 상기 수집된 액상의 유해가스 수위에 따라 에어펌프(23)가 작동되어 저장탱크(24)로 이송되어 재사용 또는 처리되게 된다.Then, a heat drop is applied to the gas having a temperature of 45 ° C to 55 ° C supplied from the cooler 21, and 5 ° C to 15 ° C gas from the cooler 21 is introduced into the condenser 22, and -30 ° C to -40 ° C. By condensing at ℃, the harmful gas is liquefied and collected at the bottom of the condenser and the air pump 23 is operated in accordance with the collected liquid harmful gas level is transferred to the storage tank 24 to be reused or processed.
또한 응축기(22)에 공급하는 냉매는 초저온 수냉식 스크류 압축냉동기에 의해 냉매온도가 -30℃∼-40℃로 유량/온도조절조(27)로 유입되고 냉매공급펌프(25)에 의해 응축기(22)로 보내며 냉각기(21)에서 나온 약 5℃∼15℃의 가스를 -30℃∼-40℃로 응축하여 가스중의 유해물질을 액화시키고 잔여가스는 다시 냉각기(21)에 유입되어 45℃∼55℃로 유입되는 가스를 5℃∼15℃정도 냉각시키고 상대가스는 약 -30℃∼-40℃온도가 5℃∼15℃정도 승온된 상태로 건조공기부로워(2)로 흡입되어 공정이 재순환되는 것을 반복하게 된다.In addition, the refrigerant supplied to the condenser 22 is introduced into the flow rate / temperature control tank 27 at a temperature of -30 ° C to -40 ° C by a cryogenic water-cooled screw compressor, and the condenser 22 is supplied by the refrigerant supply pump 25. ) And condensate the gas of about 5 ℃ ~ 15 ℃ out of the cooler 21 to -30 ℃ ~ -40 ℃ to liquefy the harmful substances in the gas. The gas flowing into 55 ℃ is cooled by 5 ~ 15 ℃ and the counter gas is sucked into the dry air blower (2) while the temperature of about -30 ℃ ~ -40 ℃ is raised by 5 ℃ ~ 15 ℃. The recycle will be repeated.
본 발명은 기존의 분무건조장치에 간단히 연계/설치하여 유해가스를 처리후 대기로 즉시 방출하지 아니하고 이를 응축시켜 액체화하여 재이용하거나 별도로 처리할 수 있도록 함은 물론 잔여가스는 승온 시켜 공정에 재순환 이용할 수 있게 하여 오염물질의 배출 없이 유해물질 제거공정이 연속적으로 순환될 수 있도록 함으로서 유해가스에 의한 환경오염을 방지하는 효과가 있다.The present invention is simply connected to / installed in the existing spray drying apparatus not to immediately release the harmful gas to the atmosphere after treatment, it can be condensed by the liquid to reuse or treat separately, as well as the residual gas can be used to recycle to the process In this way, the process of removing harmful substances can be continuously circulated without releasing pollutants, thereby preventing environmental pollution by harmful gases.
Claims (3)
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| KR10-2004-0003283A KR100437711B1 (en) | 2004-01-16 | 2004-01-16 | Treatment apparatus for injurious gas of spray drying machine and treatment method |
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