KR20020059467A - Wastewater evaporation concentration and drying plant - Google Patents

Wastewater evaporation concentration and drying plant Download PDF

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Publication number
KR20020059467A
KR20020059467A KR1020010000832A KR20010000832A KR20020059467A KR 20020059467 A KR20020059467 A KR 20020059467A KR 1020010000832 A KR1020010000832 A KR 1020010000832A KR 20010000832 A KR20010000832 A KR 20010000832A KR 20020059467 A KR20020059467 A KR 20020059467A
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South Korea
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evaporation
chamber
wastewater
steam
drying
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KR1020010000832A
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Korean (ko)
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KR100387030B1 (en
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전용봉
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전용봉
주식회사 한국엔비텍
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048—Purification of waste water by evaporation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
    • F26B7/002—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00 using an electric field and heat

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

PURPOSE: Provided is a wastewater evaporator which performs the processes of evaporation, concentration and drying at once and that reduces cost and running time and maintains the high efficiency of heat conduction by removing solid scale continuously. CONSTITUTION: The wastewater evaporator comprises an evaporation/concentration tower(10) in which steam jacket(11) is installed at the outer wall and heat conducting board(12) is installed at the inner part and inlet is installed at the bottom, a rotation spindle which is installed in the evaporation/concentration tower vertically and has separator(21) and mixing means(22), a mixing motor(30) which drives the rotation spindle, a drying space(40) which is connected with the lower part of the evaporation/concentration tower and has steam jacket(41) and inlet, a spiral type discharge means(50) composed of rotation pole(51) and spiral type projection parts(52,53), a wastewater supply pipe(60), a steam supply pipe(70) connected with evaporation/concentration tower, drying space and steam jackets, a circulation pipe(80).

Description

폐수증발농축건조장치{Wastewater evaporation concentration and drying plant}Wastewater evaporation concentration and drying plant

본 발명은 폐수증발농축건조장치에 관한 것으로, 더욱 상세하게는 스팀의 열을 이용하여 용존고형물이 함유된 폐수가 증발농축 및 건조되게 함으로써 단일공정으로 폐수의 고형물이 분리·배출되도록 하며, 회전축에 교반수단을 설치하여 폐수를 연속적으로 교반시킴과 동시에 증발농축실의 전열면에 마찰되게 함으로써 전열면에 부착되는 고형물의 스케일을 제거하여 전열성능이 유지되도록 한 폐수증발농축건조장치에 관한 것이다.The present invention relates to a wastewater evaporation concentration drying apparatus, and more particularly, by using the heat of steam to allow the wastewater containing dissolved solids to be evaporated and concentrated by evaporation and to separate and discharge the solids of the wastewater in a single process, The present invention relates to a wastewater evaporation and condensation drying apparatus which maintains heat transfer performance by removing a scale of solids attached to a heat transfer surface by agitating the waste water by continuously stirring the waste water and simultaneously rubbing the heat transfer surface of the evaporation chamber.

일반적으로 폐수처리방법은 용존고형물이 함유된 폐수를 증발농축장치에 공급하여 일정농도까지 농축한 후에 결정화 및 분리하거나 건조장치에 보내 폐수중의 용존고형물을 최종 분리하게 된다.In general, the wastewater treatment method supplies the wastewater containing the dissolved solids to an evaporation concentrator and concentrates them to a certain concentration, and then crystallizes and separates them or sends them to a drying apparatus to finally separate the dissolved solids in the wastewater.

이러한 폐수처리방법에 사용되는 종래의 폐수증발농축장치는 다수의 소형 전열관이 수직으로 장착되어 전열관의 외측으로 스팀이 공급되고 폐수는 상기 전열관의 상부로부터 내벽을 따라 자연유하하여 얇은 막상으로 흘러내리면서 스팀으로부터 열을 전달받아 소량의 폐수를 증발시킨 후 응축기로 유도되게 하여 응축배출시키고 농축된 폐수는 호퍼에 일시 저장시킨 다음 순환펌프에 의해 상부로 이송되게 하여 증발농축이 반복되도록 한다.The conventional wastewater evaporation concentrator used in the wastewater treatment method has a plurality of small heat pipes mounted vertically so that steam is supplied to the outside of the heat pipes, and the waste water flows down into a thin film by naturally flowing along the inner wall from the top of the heat pipes. After receiving the heat from the steam, a small amount of waste water is evaporated and guided to the condenser to discharge the condensate. The concentrated waste water is temporarily stored in the hopper and then transferred to the upper side by a circulating pump to repeat the evaporation concentration.

그리고, 상기 폐수증발농축장치에 의하여 일정농도로 농축된 폐수는 건조기나 결정화설비로 보내 고형물을 최종 분리시킨다.The wastewater concentrated to a certain concentration by the wastewater evaporation concentrator is sent to a dryer or a crystallization facility to finally separate the solids.

그런데, 종래의 기술에 따른 폐수의 증발농축장치는 전열관 내부를 얇은 막상으로 흐르는 폐수가 유속이 작은 상태에서 점점 농축되므로 전열관에 고형물의 스케일이 과다하게 발생하여 전열성능을 연속적으로 유지하기가 어려운 문제점이 있었다.However, the wastewater evaporation concentrator according to the prior art has a problem that it is difficult to continuously maintain the heat transfer performance due to excessive scale of solids in the heat transfer tube because the waste water flowing in the heat transfer tube in a thin film form is gradually concentrated. There was this.

또한, 장치를 가동시키는 운전자가 폐수의 농도관리에 실패하여 장치내에 결정이 형성될 경우에는 전열관이 완전히 폐색되는 현상을 초래하므로 오염농도가 낮은 저농도 폐수의 저농축용으로 이용이 제한되고 폐수중의 용존고형물을 완전히 분리, 제거하기 위하여 고농축용 증발농축장치, 결정화설비 및 건조설비 등의 장치를 별도로 설치해야 하는 문제점이 있어 시설비가 과다해짐은 물론 운전중 행하는 세정의 반복으로 인하여 운전시간의 증가와 세정폐수의 발생 및 재처리가 필요하게 되어 장치의 유지에 많은 어려움이 있다.In addition, if the driver operating the device fails to manage the concentration of waste water and crystals are formed in the device, the heat transfer tube may be completely blocked. Therefore, the operation of the device is limited to low concentration of low concentration wastewater with low pollutant concentration. In order to completely separate and remove the dissolved solids, there is a problem of separately installing a high concentration evaporation concentrator, a crystallization unit, and a drying unit. Therefore, the cost of the facility is excessive and the operation time is increased due to the repeated washing during operation. The generation and retreatment of the rinsing waste water is required, and there are many difficulties in maintaining the apparatus.

본 발명은 상기와 같은 문제점을 해결하기 위하여 제안된 것으로서, 그 목적으로 하는 바는 폐수의 증발농축공정 및 건조공정이 단일공정으로 이루어지도록 함으로써 장치의 소형화를 유도하여 시설비를 절감되게 하고 운전시간을 감소시키는데 있다.The present invention has been proposed in order to solve the above problems, the purpose of which is to make the evaporation and drying process of the waste water in a single process to induce the miniaturization of the device to reduce the facility cost and reduce the operating time To reduce.

또 다른 목적은 폐수의 증발농축공정에서 발생하는 고형물의 스케일을 연속적으로 제거하도록 함으로써 전열면을 항상 청결하게 하여 전열성능을 고감도로 유지시키는데 있다.Another purpose is to continuously remove the scale of solids generated in the evaporative concentration process of the wastewater, thereby maintaining the heat transfer performance at high sensitivity by keeping the heat transfer surface clean at all times.

도 1은 본 발명에 따른 폐수증발농축건조장치를 나타낸 개략적인 전체 구성도이다.1 is a schematic overall configuration diagram showing the wastewater evaporation concentration drying apparatus according to the present invention.

도 2는 본 발명에 따른 폐수증발농축건조장치의 증발농축건조원리를 나타낸 상세도이다.Figure 2 is a detailed view showing the evaporation concentration drying principle of the wastewater evaporation concentration drying apparatus according to the present invention.

도 3은 본 발명에 따른 폐수증발농축건조장치의 전열면에 부착된 스케일을 제거하는 실시예를 나타낸 상태도이다.Figure 3 is a state diagram showing an embodiment for removing the scale attached to the heat transfer surface of the wastewater evaporation and concentration drying apparatus according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 증발농축실 11,41: 스팀재킷10: evaporation chamber 11, 41: steam jacket

12: 전열면 20: 회전축12: heat transfer surface 20: rotation axis

21: 분배기 22a: 회전고리21: Splitter 22a: Swivel

30: 교반모터 40: 건조실30: stirring motor 40: drying chamber

50: 나선형배출기 52,53: 나선형돌출부50: spiral ejector 52, 53: spiral protrusion

54: 교반패들 60: 폐수공급관54: stirring paddle 60: waste water supply pipe

70: 스팀공급관 80: 순환펌프70: steam supply pipe 80: circulation pump

90: 미스트세퍼레이터 91: 유도관90: mist separator 91: induction pipe

92: 분리액이송배관 100: 진공응축기92: separation liquid transfer pipe 100: vacuum condenser

110: 진공펌프 120: 응축수배출펌프110: vacuum pump 120: condensate discharge pump

130: 기액분리기130: gas-liquid separator

상기와 같은 목적을 달성하기 위한 본 발명은 내부에 진공이 형성되며, 외면에 스팀재킷을 밀착되게 설치하되 내면에 전열면을 형성하여 스팀 열이 전달되게 하고 증발농축되어 결정화된 고형물이 하부로 배출되도록 하단에 배출구를 형성한 증발농축실과; 상기 증발농축실의 내부에 수직으로 설치하며, 장공을 형성한 분배기 및 교반수단을 외주연에 상하로 배치하되 수평부착시킨 회전축과; 상기 증발농축실의 상단에 설치되어 회전축을 회전시키는 교반모터와; 상기 증발농축실의 하측에 결합되며, 외면에 스팀재킷을 설치하여 결정화된 고형물을 건조시키고 그 건조된 고형물을 외부로 배출시키는 배출구를 하단에 형성한 건조실과; 상기 건조실 내부에 설치하되 회전봉이 회전축의 하단에 수직으로 연결되어 연동되게 하며, 그 회전봉의 외주연 상하부에 나선형돌출부를 형성시켜 나선형돌출부의 일부가 증발농축실 및 건조실의 배출구에 각각 위치되게 한 나선형배출기와; 상기 증발농축실의 분배기 상면으로 폐수를 공급하는 폐수공급관과; 상기 증발농축실 및 건조실의 스팀재킷에 연결되는 스팀공급관과; 상기 증발농축실의 하부에 일시 저장되는 증발진행상태의 폐수를 분배기까지 연속적으로 순환시키는 순환펌프로 구성되게 하는 것을 그 기술적 구성상의 기본 특징으로 한다.The present invention for achieving the above object is a vacuum is formed inside, the steam jacket is installed in close contact with the outer surface to form a heat transfer surface on the inner surface to transfer steam heat and evaporation concentrated crystallized solid discharged to the bottom An evaporation concentration chamber having an outlet at the bottom thereof; A rotary shaft installed vertically in the evaporation chamber and arranged horizontally with a distributor and agitating means having a long hole vertically arranged on an outer circumference thereof; A stirring motor installed at an upper end of the evaporative concentration chamber to rotate a rotating shaft; A drying chamber coupled to a lower side of the evaporation concentration chamber, and having a steam jacket disposed on an outer surface thereof to dry the crystallized solid and to discharge the dried solid to the outside; Spiral is installed inside the drying chamber, the rotating rod is connected to the lower end of the rotating shaft vertically interlocked, and the spiral protrusion is formed on the upper and lower outer periphery of the rotating rod so that a part of the spiral protrusion is located at the outlet of the evaporation chamber and the drying chamber, respectively. Ejector; A wastewater supply pipe for supplying wastewater to an upper surface of the distributor of the evaporative concentration chamber; A steam supply pipe connected to the steam jacket of the evaporation chamber and the drying chamber; The basic feature of the technical configuration is to be composed of a circulating pump for continuously circulating the wastewater in the evaporation progress state temporarily stored in the lower part of the evaporation concentrator to the distributor.

위와 같이 구성된 본 발명의 바람직한 실시예를 도면을 참조하면서 상세히 설명하면 다음과 같다.Referring to the preferred embodiment of the present invention configured as described above in detail with reference to the drawings as follows.

도 1은 본 발명에 따른 폐수증발농축건조장치를 나타낸 개략적인 전체 구성도이고, 도 2는 본 발명에 따른 폐수증발농축건조장치의 증발농축건조원리를 나타낸 상세도이고, 도 3은 본 발명에 따른 폐수증발농축건조장치의 전열면에 부착된 스케일을 제거하는 실시예를 나타낸 상태도이다.1 is a schematic overall configuration showing the wastewater evaporation and concentration drying apparatus according to the present invention, Figure 2 is a detailed view showing the evaporation and concentration drying principle of the wastewater evaporation and concentration drying apparatus according to the present invention, Figure 3 Figure 1 is a state diagram showing an embodiment for removing the scale attached to the heat transfer surface of the wastewater evaporation concentration drying apparatus.

도 1 및 도 2에 나타낸 바와 같이, 본 발명에 따른 폐수증발농축건조장치는 증발농축실(10)을 설치하여 외면에 스팀재킷(11)을 밀착되게 설치하고 내면에 전열면(12)을 형성하며 하단에 배출구(13)가 형성되게 한다.1 and 2, in the wastewater evaporation and concentration drying apparatus according to the present invention, an evaporation concentration chamber 10 is installed to closely install the steam jacket 11 on the outer surface and the heat transfer surface 12 is formed on the inner surface. And the outlet 13 is formed at the bottom.

상기 증발농축실(10)의 내부에는 수직으로 회전축(20)을 설치하며 장공(21a)을 형성한 분배기(21) 및 교반수단(22)을 회전축(20)에 상하로 배치하되 수평 부착되게 한다. 이때, 상기 교반수단(22)은 회전축(20)의 외주연에 다수의 회전고리(22a)를 일정간격 배치시키되 방사형으로 부착시키는 것이 바람직하다.Inside the evaporation chamber 10, the rotary shaft 20 is installed vertically, and the distributor 21 and the stirring means 22 having the long holes 21a are disposed vertically on the rotary shaft 20, but horizontally attached thereto. . At this time, the stirring means 22 is preferably arranged radially to a plurality of rotary rings 22a on the outer periphery of the rotary shaft 20 at regular intervals.

상기 증발농축실(10)의 상단에는 교반모터(30)를 설치하되 회전축(20)이 연결되게 하여 회전축(20)을 회전시키게 한다.The stirring motor 30 is installed on the upper end of the evaporation chamber 10 so that the rotating shaft 20 is connected to rotate the rotating shaft 20.

한편, 상기 증발농축실(10)의 하측에는 건조실(40)을 결합하여 외면에 스팀재킷(41)을 설치하고 하단에 배출구(42)가 형성되게 한다.On the other hand, the lower side of the evaporation concentration chamber 10 is coupled to the drying chamber 40 to install a steam jacket 41 on the outer surface and the outlet 42 is formed at the bottom.

상기 건조실(40) 내부에는 회전봉(51)과 나선형돌출부(52)로 이루어진 나선형배출기(50)를 설치하며, 회전봉(51)이 회전축(20)의 하단에 수직으로 연결되어 연동되게 하고 그 회전봉(51)의 외주연 상하부에 나선형돌출부(52,53)를 각각 형성시켜 나선형돌출부(52,53)의 일부가 증발농축실(10) 및 건조실(40)의 배출구(13,42)에 각각 위치되게 한다. 이때, 나선형배출기(50)는 회전봉(51)의 외주연에 교반패들(54)을 수평 부착시킨다.Inside the drying chamber 40 is installed a spiral discharger 50 consisting of a rotating rod 51 and a spiral protrusion 52, the rotating rod 51 is vertically connected to the lower end of the rotating shaft 20, and the rotating rod ( Spiral protrusions 52 and 53 are formed at upper and lower outer peripheries of the 51, respectively, so that a part of the spiral protrusions 52 and 53 are positioned at the outlets 13 and 42 of the evaporation chamber 10 and the drying chamber 40, respectively. do. At this time, the spiral discharger 50 is attached to the stirring paddle 54 horizontally on the outer periphery of the rotating rod (51).

한편, 상기 증발농축실(10)의 일측에는 폐수공급펌프(61)와 연결시킨 폐수공급관(60)이 연결되게 하고, 증발농축실(10) 및 건조실(40)의 스팀재킷(11,41)에 스팀공급관(70)이 연결되게 한다.On the other hand, the one side of the evaporation concentration chamber 10 is connected to the wastewater supply pipe 60 connected to the wastewater supply pump 61, the steam jacket (11, 41) of the evaporation concentration chamber 10 and the drying chamber (40) To the steam supply pipe (70).

상기 증발농축실(10)의 타측에는 순환펌프(80)를 연결하되 증발농축실(10)의 상부와 연결시키는 순환배관(81)이 연결되게 한다. 그리고, 증발농축실(10)의 외면 상부에는 유도관(91)을 연결하여 미스트세퍼레이터(90) 및 진공응축기(100)가 연결되게 하고, 미스트세퍼레이터(90)에 분리액이송배관(92)을 연결하여 증발농축실(10)의 상부와 연결되게 하며, 진공응축기(100)에 진공펌프(110)와 응축수배출펌프(120)가 각각 연결되게 한다.The other side of the evaporation concentration chamber 10 is connected to the circulation pump 80, but the circulation pipe 81 is connected to the upper portion of the evaporation concentration chamber (10). In addition, the mist separator 90 and the vacuum condenser 100 are connected to each other by connecting an induction pipe 91 to an upper portion of the outer surface of the evaporation concentration chamber 10, and separating the liquid transfer pipe 92 to the mist separator 90. It is connected to the upper portion of the evaporation and concentration chamber 10, the vacuum condenser 100 is connected to the vacuum pump 110 and the condensate discharge pump 120, respectively.

또한, 기액분리기(130)를 건조실(40)의 상부와 연결되게 하되 유도관(91) 및 순환펌프(80)에 각각 연결되게 한다.In addition, the gas-liquid separator 130 is connected to the upper portion of the drying chamber 40, but is connected to the induction pipe 91 and the circulation pump 80, respectively.

상기와 같은 구성으로 이루어진 본 발명에 따른 폐수증발농축건조장치의 작용을 설명하면 다음과 같다.Referring to the operation of the wastewater evaporation concentration drying apparatus according to the present invention made of a configuration as described above are as follows.

먼저, 낮은 온도에서의 폐수의 증발을 유도하기 위해 진공펌프(110)를 통하여 증발농축실(10)의 내부에 약 200Torr의 진공이 형성되게 한다.First, a vacuum of about 200 Torr is formed inside the evaporation chamber 10 through the vacuum pump 110 in order to induce evaporation of waste water at a low temperature.

상기 증발농축실(10)에 진공이 형성되면 폐수공급펌프(61)가 가동되고 동시에 공급밸브(62)가 열리면서 폐수공급관(60)을 통하여 폐수가 증발농축실(10)로 유입되어 내벽을 따라 얇은 막상으로 자연유하하게 된다.When the vacuum is formed in the evaporative concentration chamber 10, the wastewater supply pump 61 is operated and at the same time the supply valve 62 is opened, and the wastewater flows into the evaporative concentration chamber 10 through the wastewater supply pipe 60 and is along the inner wall. It is thin in nature and becomes natural.

상기 증발농축실(10)에 연결된 액면계(82)까지 폐수가 공급되면 공급밸브(62)가 닫히고 교반모터(30)가 서서히 구동되면서 순환펌프(80)를 가동하여 순환배관(81)을 통해 증발농축실(10)의 상부로 유입되게 한다.When the wastewater is supplied to the liquid level gauge 82 connected to the evaporation concentration chamber 10, the supply valve 62 is closed and the stirring motor 30 is gradually driven to operate the circulation pump 80 to evaporate through the circulation pipe 81. Inflow to the top of the concentration chamber (10).

상기 순환펌프(80)에 의해 증발농축실(10)로 공급된 폐수는 교반모터(30)의 구동과 함께 회전하는 회전축(20)에 부착된 분배기(21)에 의해 증발농축실(10)의 전열면(12)을 따라 얇은 막상으로 자연유하되고 스팀재킷(11)에 유입된 스팀의 열을 전달받아 증발되며, 교반수단(22)인 회전고리(22a)에 의하여 교반되면서 하부로 이동된다.The wastewater supplied to the evaporative concentration chamber 10 by the circulation pump 80 is discharged from the evaporative concentration chamber 10 by a distributor 21 attached to the rotating shaft 20 which rotates together with the driving of the stirring motor 30. It is naturally discharged in a thin film form along the heat transfer surface 12 and is evaporated by receiving the heat of steam introduced into the steam jacket 11, and is moved downward while being stirred by the rotary ring 22a which is the stirring means 22.

이때, 도 3에 나타낸 바와 같이, 상기 회전축(20)의 회전속도 증가에 따라 회전고리(22a)가 점점 상승하면서 회전수가 150rpm 이상일 때 수평상태를 유지하여 회전고리(22a)의 끝단이 전열면(12)과 마찰하게 되고 그 마찰력에 의해 전열면(12)에 부착된 고형물의 스케일이 제거된다.At this time, as shown in Figure 3, as the rotation ring 22a gradually increases as the rotation speed of the rotating shaft 20 increases and maintains a horizontal state when the rotation speed is 150rpm or more, the end of the rotation ring 22a is the heat transfer surface ( 12) and the frictional force removes the scale of the solid attached to the heat transfer surface 12.

또한, 상기 분배기(21)에 형성된 장공(21a)을 통하여 증발된 증기가 증발농축실(10)의 상부로 원활하게 이동하게 된다.In addition, the vapor evaporated through the long hole (21a) formed in the distributor 21 is smoothly moved to the upper portion of the evaporation concentration chamber (10).

상기 증발농축실(10)의 하부에 이동된 폐수는 일시 저장되고 순환펌프(80)에 의해 증발농축실(10)의 상부로 다시 공급되는데, 이러한 폐수의 연속적인 순환으로 폐수중의 수분은 점점 증발되어 응축되고 폐수의 고형물은 점점 농축되며 과포화상태가 유지되면서 결정화되어 증발농축실(10)의 하부에 쌓이게 된다.The wastewater moved to the lower part of the evaporation chamber 10 is temporarily stored and supplied back to the upper part of the evaporation chamber 10 by the circulation pump 80, and the water in the waste water gradually increases due to the continuous circulation of the wastewater. Evaporated and condensed, and the solids of the waste water are gradually concentrated and crystallized while being supersaturated and accumulated at the bottom of the evaporation chamber 10.

상기 결정화된 고형물은 회전축(20)의 하단에 연결된 나선형배출기(50)의 회전과 함께 건조실(40)로 원활하게 유입된 후 건조되어 외부로 배출된다.The crystallized solid material is smoothly introduced into the drying chamber 40 with the rotation of the spiral discharger 50 connected to the lower end of the rotary shaft 20, dried and discharged to the outside.

이때, 나선형배출기(50)의 외주연에 부착된 교반패들(54)이 건조실(40)로 유입된 고형물을 적절하게 혼합 교반시키면서 스팀재킷(41)에 공급되는 스팀의 열을 균일하게 전달시켜 잔여수분을 증발시키고 고형물을 건조시킨다.At this time, the stirring paddle 54 attached to the outer periphery of the spiral discharger 50 uniformly transfers the heat of the steam supplied to the steam jacket 41 while properly mixing and stirring the solids introduced into the drying chamber 40. The remaining moisture is evaporated and the solids are dried.

한편, 상기 증발농축실(10)에서 증발된 증기는 유도관(91)을 따라 미스트세퍼레이터(90)를 거친 후 미스트는 분리액이송배관(92)을 통하여 증발농축실(10)로 다시 유입되고 순수증기는 냉각수가 순환되고 있는 진공응축기(100)를 통과하면서 응축되어 하부의 드레인포트(101)에 일시 저장시킨 후 응축수배출관(121)에 연결된 응축수배출펌프(120)를 통하여 배출시키고 증기에 포함된 미량의 불응축성 가스는 진공펌프(110)를 통하여 외부로 배기시킨다.On the other hand, the vapor evaporated in the evaporation concentration chamber 10 passes through the mist separator 90 along the induction pipe 91, the mist is introduced back into the evaporation concentration chamber 10 through the separation liquid transfer pipe 92 Pure steam is condensed while passing through the vacuum condenser 100 in which the coolant is circulated, and temporarily stored in the drain port 101 at the lower side, and then discharged through the condensate discharge pump 120 connected to the condensate discharge pipe 121 and included in the steam. The trace amount of non-condensable gas is exhausted to the outside through the vacuum pump 110.

그리고, 상기 건조실(40)에서 증발된 증기는 기액분리기(130)를 거쳐 순수증기는 유도관(91)을 통하여 응축되고 미스트는 순환펌프(80)를 통하여 증발농축실(10)로 다시 유입된다.The vapor evaporated in the drying chamber 40 passes through the gas-liquid separator 130, and the pure steam condenses through the induction pipe 91, and the mist flows back into the evaporation chamber 10 through the circulation pump 80. .

이상에서 살펴본 바와 같이 본 발명에 따른 폐수증발농축건조장치에 의하면, 폐수의 증발농축공정 및 건조공정이 단일공정으로 이루어지게 됨으로써 장치가 소형화되어 시설비가 절감됨은 물론 운전시간이 감소되어 매우 경제적이다.As described above, according to the wastewater evaporation concentration drying apparatus according to the present invention, since the evaporation and drying process of the wastewater is made in a single process, the apparatus is miniaturized to reduce the facility cost as well as to reduce the operating time, which is very economical.

또한, 폐수의 증발농축공정에서 발생하는 고형물의 스케일이 연속적으로 제거됨으로써 전열면이 항상 청결하게 되어 전열성능이 고감도로 유지됨은 물론 에너지효율을 향상시키는 탁월한 효과가 있다.In addition, the scale of the solids generated in the evaporation concentration process of the waste water is continuously removed, so that the heat transfer surface is always clean, and the heat transfer performance is maintained with high sensitivity, and there is an excellent effect of improving energy efficiency.

Claims (5)

내부에 진공이 형성되며, 외면에 스팀재킷(11)을 밀착되게 설치하되 내면에 전열면(12)을 형성하여 스팀 열이 전달되게 하고 증발농축되어 결정화된 고형물이 하부로 배출되도록 하단에 배출구(13)를 형성한 증발농축실(10)과; 상기 증발농축실(10)의 내부에 수직으로 설치하며, 장공(21a)을 형성한 분배기(21) 및 교반수단(22)을 외주연에 상하로 배치하되 수평부착시킨 회전축(20)과; 상기 증발농축실(10)의 상단에 설치되어 회전축(20)을 회전시키는 교반모터(30)와; 상기 증발농축실(10)의 하측에 결합되며, 외면에 스팀재킷(41)을 설치하여 결정화된 고형물을 건조시키고 그 건조된 고형물을 외부로 배출시키는 배출구(42)를 하단에 형성한 건조실(40)과; 상기 건조실(40) 내부에 설치하되 회전축(20)의 하단에 회전봉(51)을 수직으로 연결시켜 연동되게 하며, 그 회전봉(51)의 외주연 상하부에 각각 나선형돌출부(52,53)를 형성시켜 나선형돌출부(52,53)의 일부가 증발농축실(10) 및 건조실(40)의 배출구(13,42)에 각각 위치되게 한 나선형배출기(50)와; 상기 증발농축실(10) 내부에 위치한 분배기(21)의 상면으로 폐수를 공급하는 폐수공급관(60)과; 상기 증발농축실(10) 및 건조실(40)의 스팀재킷(11,41)에 연결되는 스팀공급관(70)과; 상기 증발농축실(10)의 하부에 일시 저장되는 증발진행상태의 폐수를 분배기(21)까지 연속적으로 순환시키는 순환펌프(80)로 구성되는 것을 특징으로 하는 폐수증발농축건조장치.A vacuum is formed inside, and the steam jacket 11 is installed in close contact with the outer surface, and a heat-transfer surface 12 is formed on the inner surface so that the steam heat is transferred and the evaporated and crystallized solids are discharged to the lower portion ( An evaporation concentration chamber 10 formed with 13); A rotating shaft 20 installed vertically in the evaporation concentration chamber 10 and horizontally attached to the outer periphery of the distributor 21 and the stirring means 22 having the long holes 21a; A stirring motor 30 installed at an upper end of the evaporation chamber 10 to rotate the rotating shaft 20; The drying chamber 40 is coupled to the lower side of the evaporation concentration chamber 10, the steam jacket 41 is installed on the outer surface to dry the crystallized solid material and the outlet 42 for discharging the dried solid material to the outside is formed at the bottom. )and; It is installed in the drying chamber 40 but is connected to the lower end of the rotating shaft 20 vertically by connecting the rotary bar 51, and the spiral protrusions 52, 53 formed on the upper and lower outer periphery of the rotary bar 51, respectively A spiral discharger 50 in which a part of the spiral projections 52 and 53 is positioned at the outlets 13 and 42 of the evaporation chamber 10 and the drying chamber 40, respectively; A wastewater supply pipe (60) for supplying wastewater to an upper surface of the distributor (21) located in the evaporative concentration chamber (10); A steam supply pipe 70 connected to the steam jackets 11 and 41 of the evaporation chamber 10 and the drying chamber 40; Wastewater evaporation and concentration drying apparatus, characterized in that consisting of a circulating pump (80) for continuously circulating the wastewater in the evaporation progress state temporarily stored in the lower portion of the evaporation concentration chamber (10) to the distributor (21). 제 1항에 있어서,The method of claim 1, 상기 교반수단(22)은 회전축(20)의 외주연에 다수의 회전고리(22a)를 일정간격 배치시키되 방사형으로 부착시켜 증발농축실(10)에 공급되는 폐수를 교반시키도록 하며, 회전고리(22a)의 끝단이 전열면(12)과 마찰되게 하여 전열면(12)에 부착되는 고형물의 스케일을 제거하여 전열성능을 유지시키도록 하는 것을 특징으로 하는 폐수증발농축건조장치.The stirring means 22 is arranged on the outer periphery of the rotary shaft 20 a plurality of rotary rings 22a at regular intervals to attach the radially to agitate the wastewater supplied to the evaporation concentration chamber 10, the rotary ring ( 22a) end of the waste water evaporation concentration drying apparatus characterized in that the heat transfer surface (12) is rubbed to remove the scale of the solid attached to the heat transfer surface (12) to maintain the heat transfer performance. 제 1항에 있어서,The method of claim 1, 상기 나선형배출기(50)는 회전봉(51)의 외주연에 교반패들(53)을 수평 부착시켜 건조실(40)로 유입된 고형물을 혼합 교반하면서 스팀의 열을 고형물에 균일하게 전달시키도록 하는 것을 특징으로 하는 폐수증발농축건조장치.The spiral discharger 50 is to attach the stirring paddle 53 to the outer periphery of the rotating rod 51 to horizontally transfer the heat of steam to the solids while mixing and stirring the solids introduced into the drying chamber 40 Wastewater evaporation concentrated drying device characterized in that. 제 1항에 있어서,The method of claim 1, 상기 증발농축실(10)의 외면 상부에 연결되는 유도관(91)을 통하여 미스트세퍼레이터(90) 및 진공응축기(100)가 연결되게 하고, 미스트세퍼레이터(90)에 분리액이송배관(92)을 연결하여 증발농축실(10)에 연결되게 하며, 진공응축기(100)에 진공펌프(110)와 응축수배출펌프(120)가 각각 연결되도록 구성하는 것을 특징으로하는 폐수증발농축건조장치.The mist separator 90 and the vacuum condenser 100 are connected to each other through an induction pipe 91 connected to an upper surface of the evaporation chamber 10, and the separation liquid transfer pipe 92 is connected to the mist separator 90. It is connected to the evaporation concentrating room 10, waste condensation evaporation drying apparatus, characterized in that configured to be connected to the vacuum pump 110 and the condensate discharge pump 120 to the vacuum condenser 100, respectively. 제 1항에 있어서,The method of claim 1, 상기 건조실(40)의 상부에 기액분리기(130)를 연결시키되 증발농축실(10)에 연결된 유도관(91)과 순환펌프(80)에 각각 연결되게 구성하여 순수 증기만이 응축되도록 하는 것을 특징으로 하는 폐수증발농축건조장치.The gas-liquid separator 130 is connected to the upper portion of the drying chamber 40, but is configured to be connected to the induction pipe 91 and the circulation pump 80 connected to the evaporation chamber 10, respectively, so that only pure steam is condensed. Wastewater evaporation concentrated drying apparatus.
KR10-2001-0000832A 2001-01-06 2001-01-06 Wastewater evaporation concentration and drying plant KR100387030B1 (en)

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KR100398706B1 (en) * 2001-05-22 2003-09-19 삼원금속 주식회사 Evaporator of waste-water for the recovery of precious metals
KR100561741B1 (en) * 2003-12-23 2006-03-22 성진엔지니어링 (주) An organic matter abstraction apparatus
KR20060109619A (en) * 2005-04-18 2006-10-23 최명호 The high concentration wastewater treatment equipment of flash vaporization and its method
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KR101125863B1 (en) * 2009-05-28 2012-03-28 주식회사 에이치엔 A Processing Apparatus for Wastewater Treatment having a condenser
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KR100398706B1 (en) * 2001-05-22 2003-09-19 삼원금속 주식회사 Evaporator of waste-water for the recovery of precious metals
KR100561741B1 (en) * 2003-12-23 2006-03-22 성진엔지니어링 (주) An organic matter abstraction apparatus
KR20060109619A (en) * 2005-04-18 2006-10-23 최명호 The high concentration wastewater treatment equipment of flash vaporization and its method
KR100927414B1 (en) * 2009-03-06 2009-11-19 주식회사 비와이 Plasma treatment device and method thereof
KR100927413B1 (en) * 2009-03-06 2009-11-19 주식회사 비와이 Ballast water treatment device
KR100927426B1 (en) * 2009-03-06 2009-11-19 주식회사 비와이 Plasma treatment device and method thereof, ballast water treatment device
KR101125863B1 (en) * 2009-05-28 2012-03-28 주식회사 에이치엔 A Processing Apparatus for Wastewater Treatment having a condenser
KR101047506B1 (en) * 2009-08-28 2011-07-07 한국철도공사 Waste oil purification device and control method accordingly
KR20160009836A (en) 2014-07-17 2016-01-27 최봉진 Roraty type apparatus for treatment wastewater having scale removing fucntion
WO2017061697A1 (en) * 2015-10-06 2017-04-13 두산중공업 주식회사 Cyclone type liquid-vapor separator and forced circulation type evaporator including same
US10384149B2 (en) 2015-10-06 2019-08-20 DOOSAN Heavy Industries Construction Co., LTD Cyclone type liquid-vapor separator and forced circulation type evaporator using the same
KR102609973B1 (en) * 2023-05-03 2023-12-04 김용환 Evaporative concentration apparatus
CN117815684A (en) * 2024-03-04 2024-04-05 湖南弘润化工科技有限公司 Solution concentration equipment is used in preparation of high purity benzoic acid
CN117815684B (en) * 2024-03-04 2024-05-24 湖南弘润化工科技有限公司 Solution concentration equipment is used in preparation of high purity benzoic acid

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