KR0120836B1 - Fluidized bed-screw hybrid drier - Google Patents
Fluidized bed-screw hybrid drierInfo
- Publication number
- KR0120836B1 KR0120836B1 KR1019940025470A KR19940025470A KR0120836B1 KR 0120836 B1 KR0120836 B1 KR 0120836B1 KR 1019940025470 A KR1019940025470 A KR 1019940025470A KR 19940025470 A KR19940025470 A KR 19940025470A KR 0120836 B1 KR0120836 B1 KR 0120836B1
- Authority
- KR
- South Korea
- Prior art keywords
- hot air
- air box
- screw
- trough
- sludge
- Prior art date
Links
Classifications
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
- F26B11/0481—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements having a screw- or auger-like shape, or form screw- or auger-like channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/18—Sludges, e.g. sewage, waste, industrial processes, cooling towers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
제1도는 본 발명에 따른 유동상 스크류 복합형 건조기의 내부구조를 도시한 사시도.1 is a perspective view showing the internal structure of the fluidized bed screw hybrid dryer according to the present invention.
제2도는 적층 설치된 본 발명의 열풍상자를 따라 슬러지가 이송되면서 재 탈수되는 과정을 도시한 A-A선 단면도.2 is a cross-sectional view taken along the line A-A showing a process of re-water dehydration while the sludge is transported along the hot air box of the present invention laminated.
제3도는 제1실시예에 따른 열풍상자의 트로프형상을 도시한 B-B선 단면도.3 is a cross-sectional view taken along line B-B showing the trough shape of the hot air box according to the first embodiment.
제4도는 제2실시예에 따른 열풍상자의 트로프형상을 도시한 B-B선 단면도이다.4 is a cross-sectional view taken along line B-B showing the trough shape of the hot air box according to the second embodiment.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 통기공 2 : 트로프1: Aerator 2: Trough
3 : 열풍 4 : 공간부3: hot air 4: space part
5 : 수직격판 6 : 열풍상자5: vertical plate 6: hot air box
6a : 상부열풍상자 6b : 중간열풍상자6a: upper hot air box 6b: middle hot air box
6c : 하부열풍상자 7 : 핀6c: Lower Hot Air Box 7: Pin
8 : 스크류 9 : 밀폐형 케이싱8 screw 9 hermetic casing
10 : 측벽판 11 : 열풍 유도판10 side wall plate 11 hot air guide plate
12 : 열풍 유입판 13 : 스크류축12 hot air inlet plate 13 screw shaft
14 : 모우터 15 : 풀리14: motor 15: pulley
16 : 벨트 17 : 슬러지16: belt 17: sludge
17a : 고수분 슬러지 17b : 저수분 슬러지17a: high moisture sludge 17b: low moisture sludge
18 : 블레이드 19 : 삽입홈18: blade 19: insertion groove
20 : 격막공 21 : 체결구멍20: diaphragm hole 21: fastening hole
22 : 배출구 23 : 하판22: outlet 23: bottom plate
24 : 베어링 25 : 호퍼24: bearing 25: hopper
26 : 주입구 27 : 흡입 송풍기26: inlet 27: suction blower
28 : 배기구 29 : 상판28: exhaust port 29: top plate
30a,30c : 금속판 30b : 단열판30a, 30c: Metal plate 30b: Insulation plate
31 : 모우터측 32 : 배출관31: motor side 32: discharge pipe
33 : 플랜지 34 : 고무판33: flange 34: rubber plate
본 발명은 슬러지형 고수분폐기물의 건조장치에 관한 것으로, 특히 건조효율을 향상시키기 위하여 고온기체의 분출에 의한 표면 건조방식과 스크류의 이송 및 교반작용에 의한 유동상 건조방식이 병행된 유동상 스크류 복합형 건조기에 관한 것이다.The present invention relates to a drying apparatus for sludge-type high water wastes, and in particular, to improve drying efficiency, a fluidized bed screw in which a surface drying method by ejecting a hot gas and a fluidized bed drying method by conveying and stirring the screw are combined. It relates to a combined type dryer.
흔히, 산업현장에서 발생되는 폐기물에는 일반폐기물과 특수폐기물이 있으며, 이중 일반폐기물은 매립 또는 소각등의 방법에 의해 처리되고, 자연환경을 심각하게 오염시킬 우려가 있는 특수폐기물에 있어서는 공인된 기관에 의해 별도 처리되고 있다.In general, wastes generated at industrial sites include general wastes and special wastes. Among them, general wastes are disposed of by landfill or incineration, and special wastes that may seriously pollute the natural environment are recognized by an authorized institution. It is processed separately.
일반 폐기물을 처리방법에 따라 분류해보면, 플라스틱, 비닐, 목재류와 같이 함수율이 낮고 발열량이 높아 소각처리가 용이한 가연성 폐기물과, 각종 생활하수, 제지, 축소, 분뇨, 피혁 및 직물등과 같이 수분이 다량 함유되어 소각처리가 어려울 뿐만 아니라 체적이 커서 운송비용이 증대되고 매립 용적 또한 많이 차지하게 되는 슬러지형 폐기물이 있다.When classifying general wastes according to the treatment method, combustible wastes with low moisture content and high calorific value such as plastic, vinyl and wood can be easily incinerated, and moisture such as various kinds of sewage, paper, shrinkage, manure, leather and textiles. There are sludge-type wastes, which contain a large amount, which is difficult to incinerate, and also has a large volume, which increases transportation costs and occupies a large amount of landfill volume.
상기의 가연성 폐기물은 별도의 건조공정이 없이 소각처리후 매립이 용이한 반면에, 슬러지형 폐기물은 운송비용을 절감시키고 소각 및 매립을 효과적으로 하기 위하여 그 전단계로 건조공정을 반드시 거쳐야 한다.While the flammable waste is easy to landfill after incineration without a separate drying process, the sludge waste must go through the drying process as a preliminary step in order to reduce transportation costs and effectively incinerate and landfill.
상기한 바와 같은 건조공정의 필요성에 따라 종래에도 많은 슬러지형 건조장치들이 제안·사용되어 왔으며, 이를 건조방식에 따라 분류해 보면, 전기침투탈수장치, 스크류 압착식 탈수장치, 원심분리형 탈수장치, 열풍주입식 건조장치, 진공가열식 건조장치 등이 있었다.According to the necessity of the drying process as described above, many sludge type drying apparatuses have been proposed and used in the past, and categorized according to the drying method, an electric osmosis dehydrating apparatus, a screw press type dehydrating apparatus, a centrifugal type dehydrating apparatus, and a hot air There was an injection drying apparatus and a vacuum heating drying apparatus.
전기침투 탈수장치는 전기화학 작용에 의하여 여과·탈수하는 장치로, 교류전기를 직류전기로 변환시켜서 폐 슬러지에 통전하면 전기 영동현상이 일어나 되어 오니입자와 수분이 전극표면에 분리되는 원리를 이용한 것으로써, 이는 함수율을 40∼60%까지 저하시켜 주고 탈수처리 시간은 비교적 짧으나 전기장치 일체가 설치되어야 하므로 장치가 크고 구조가 복잡하다는 문제점이 있었다.Electro-infiltration and dehydration device is a device that filters and dehydrates by electrochemical action. It converts AC electricity into DC electricity and applies electrophoresis to waste sludge, and it uses the principle that sludge particles and water are separated from electrode surface. By using this, the water content is reduced to 40 to 60% and the dehydration time is relatively short, but since the electric device must be installed, there is a problem that the device is large and the structure is complicated.
한편, 스크류 압착식 탈수장치는 기계적인 압착에 의존하는 것으로, 고수분 슬러지(함수율 95% 이상)를 80% 정도로 탈수 감량할 수 있으며, 경제성을 감안할 때 더 이상의 탈수효율을 기대하기 어렵고 처리과정이 복잡하며 탈수속도가 대단히 느리고 배출구가 쉽게 마모되는 문제점이 있었다.On the other hand, the screw crimping dehydrator relies on mechanical crimping, which can dehydrate and reduce high moisture sludge (water content of 95% or more) to about 80%, and considering economics, it is difficult to expect further dewatering efficiency. There was a problem in that the dehydration rate was very slow and the outlet was easily worn.
또한, 열풍주입식 건조장치에는 열풍에 의해 가열된 금속표면상의 폐기물을 이송하여 그 표면상에서 가열·건조하는 간접접촉 건조식과, 이송중인 폐기물의 상부에 열풍을 통과시켜 접촉표면에서 건조가 이루어지는 직접접촉 표면 건조식과, 폐기물 내부로 열풍을 강제 압입하므로써 교반 및 건조가 이루어지는 유동상 건조식이 있으며, 상기 간접접촉식과 직접접촉표면식 건조장치는 교반이 이루어지지 않으므로 건조효율이 낮고 건조장치의 체적이 크며 기계적 구동부가 많아 구조가 복잡하고 이송공간이 커지는 문제점이 있었으며, 유동상 건조장치는 건조효율은 우수하나 단순히 열풍의 송풍력으로써 슬러지를 교반시켜 주게 되어 있으므로 송풍기의 압력수두가 높아야 하고 유동화 열풍 분배기의 오손으로 인한 운전비용이 상승되는 문제점이 있었다.In addition, the hot-air injecting drying apparatus includes an indirect contact drying method for transferring waste on a metal surface heated by hot air to heat and dry it on the surface, and a direct contact surface for drying on the contact surface by passing hot air through the upper part of the conveyed waste. There is a drying type and a fluidized bed drying type in which stirring and drying is performed by forcibly injecting hot air into the waste. The indirect contacting type and the direct contact surface type drying device have low drying efficiency because the stirring is not performed, and the drying device has a large volume and a mechanical driving part. There is a problem in that the structure is complicated and the transport space is large, and the fluidized bed drying device is excellent in drying efficiency, but the sludge is agitated simply by the blowing force of hot air, so the pressure head of the blower must be high and the fouling of the fluidized hot air distributor The problem of rising operating costs It was.
한편, 진공가열식 건조장치는 폐기물을 밀폐용기내에 투입하고 용기내의 압력을 진공화한 상태에서 폐기물을 가열한 후 팽창·건조 하는 것으로서, 이러한 건조방식은 진공상태를 유지하기 위한 동력소비가 크고, 용기의 누설로 인한 보수비용과 운전비용이 많이 들며, 대용량의 연속 건조설비로 적합하지 않다는 문제점이 있었다.On the other hand, the vacuum heating drying apparatus is to inject waste into a sealed container and to expand and dry the waste after heating the waste in a state in which the pressure in the vessel is evacuated. Such a drying method has a high power consumption to maintain a vacuum state, and a container There is a problem that the maintenance cost and operating cost due to leakage of a lot, and is not suitable for large capacity continuous drying equipment.
이에 본 발명은 상기와 같은 제반 문제점들을 해결하기 위해 제안된 것으로, 구조가 간단하고 분해조립이 용이하며, 설치공간의 제한에 따른 용적의 변형이 쉽고 소형제작이 가능하며, 동력소비를 최소화할 수 있고 폐 슬러지내의 함수율을 20% 이하까지 기대할 수 있는, 건조효율이 우수한 슬러지 건조장치를 제공하는데 그 목적이 있다.Accordingly, the present invention has been proposed to solve the above problems, the structure is simple and easy to disassemble and assemble, the deformation of the volume according to the limitation of the installation space is easy and small size, it is possible to minimize the power consumption It is an object of the present invention to provide a sludge drying apparatus having excellent drying efficiency, which can expect water content in waste sludge up to 20%.
상기와 같은 목적을 달성하기 위한 본 발명에 따른 유동상 스크류 복합형 건조기는, 모우터에 의해 구동되는 다수의 스크류가 트로프상에 설치되어 있고 이 트로프 표면에 다수의 통기공이 형성되어 있는 열풍상자를 구비한 슬러지 건조장치에, 다단계의 건조과정을 거치도록 상기 열풍상자를 소정간격으로 다수개 적층하되 각 열풍상자의 좌·우 양단이 교대로 돌출되도록 배치하고 각 열풍상자의 내부에는 열풍이 통과할 수 있는 공간부와 격막공이 형성된 수직격판이 구비되어 상·하부 열풍상자의 측단에 연결된 열풍 유도관에 의해, 상부 열풍상자의 타측단에 부착된 열풍 유입관에서 유입되는 열풍이 하부 열풍상자까지 도달할 수 있도록 하며, 상기 스크류는 블레이드 사이에 핀이 부착되어 있고 내부가 고온 유지되도록 단열판을 내장시킨 밀폐용 케이싱이 좌우 측벽판에 구비된 베어링에 의해 스크류가 회전될 수 있도록 스크류측 양단을 지지하여 슬러지를 이송 및 교반시키면서 열풍이 공급되도록 하는 한편, 상기 밀폐형 케이싱은 열풍상자의 측면에 보울트로써 간단히 체결할 수 있도록 된 것이다.In the fluidized bed screw type dryer according to the present invention for achieving the above object, a hot air box in which a plurality of screws driven by a motor are installed on a trough and a plurality of vents are formed on the trough surface. In the sludge drying apparatus equipped with a plurality of hot air boxes at a predetermined interval so as to undergo a multi-step drying process, the left and right ends of each hot air box are alternately protruded, and hot air passes through the inside of each hot air box. Hot air flowing from the hot air inlet pipe attached to the other end of the upper hot air box to the lower hot air box is provided by a hot air induction pipe connected to the side ends of the upper and lower hot air boxes with a space plate and a vertical plate formed with a diaphragm hole. Reachable, the screw is sealed with a fin attached between the blades and a thermal insulation board to keep the inside hot The casing supports both ends of the screw so that the screw can be rotated by the bearings provided on the left and right side wall plates so that hot air is supplied while transporting and stirring the sludge, while the sealed casing can be simply fastened as a bolt to the side of the hot air box. It is to be possible.
이하, 첨부된 도면을 참도하겨 본 발명의 제1실시예를 상세히 설명한다.Hereinafter, the first embodiment of the present invention will be described in detail with reference to the accompanying drawings.
제1도 및 제2도에 도시된 바와 같이, 본 발명은 다수의 통기공(1)이 형성된 트로프(2)와 열풍(3)이 머무르는 내부 공간부(4) 및 수직격판(5)이 구비된 열풍상자(6)의 트로프(2)에, 핀(7)이 부착된 스크류(8)가 밀페용 케이싱(9)의 좌·우 측벽판(10)에 의해 지지되면서 수용되어 한개의 건조유니트를 이루며, 이 건조 유니트를 다수개 적층 설치하고 상·하 인접하는 상기 열풍상자(6)의 공간부(4)를 연속적으로 이어주는 열풍유도관(11)과 상부열풍상자(6a)의 일단에 마련된 열풍유입관(12)에 의해 일체의 열풍통로가 형성되며, 하부건조유니트의 한개 스크류축(13)선상에 모우터(14)를 연결하고 각각의 스크류축(13)에 마련된 풀리(15)에 벨트(16)를 걸어서 동시에 회전될 수 있게 하므로써 투입된 고수분 슬러지(17a)를 열풍상자(6)의 트로프(2)표면상에서 이송·교반시키고, 일차 건조된 슬러지(17)를 자중에 의해 낙하시켜 다음 열풍상자(6)에서 재차 건조시켜 주는 구조로 된 것이다.As shown in FIG. 1 and FIG. 2, the present invention is provided with a trough 2 having a plurality of vent holes 1, an inner space 4 in which the hot air 3 stays, and a vertical partition 5. In the trough 2 of the hot air box 6, the screw 8 with the pins 7 is received while being supported by the left and right side wall plates 10 of the sealing casing 9, and there is one drying unit. A plurality of drying units are stacked and provided at one end of the hot air induction pipe 11 and the upper hot air box 6a which continuously connect the space portion 4 of the hot air box 6 adjacent to each other. An integral hot air passage is formed by the hot air inlet pipe 12, and the motor 14 is connected to one screw shaft 13 line of the lower drying unit, and is connected to the pulley 15 provided on each screw shaft 13. The high moisture sludge 17a introduced by allowing the belt 16 to rotate at the same time is transported and stirred on the trough 2 surface of the hot air box 6, Tea dried sludge (17) to fall by its own weight to the structure, which was again dried in hot air, and then the box (6).
먼저, 스크류(8)의 구조를 살펴보면, 상기 스크류(8)는 스크류축(13)과 블레이드(18) 및 핀(7)으로 이루어져 있으며, 상기 스크류축(13)의 선단에는 벨트(16)를 걸어줄 수 있는 풀리(15)가 형성되어 있고, 스크류축(13)의 표면에 나선상으로 블레이드(18)가 부착되며, 이 블레이드(18)의 원주에 축심을 향하여 절개된 삽입홈(19)이 90° 간격으로 형성되어 일체형의 기다란 핀(7)을 축방향으로 삽입·부착시켜서 된 것이다. 한편, 스크류(8)를 수용하는 열풍상자(6)는 상부열풍상자(6a), 중간열풍상자(6b), 하부열풍상자(6c)로 이루어져 있으며, 상기 열풍상자(6)의 내부에 공간부(4)가 형성되고, 그 중앙에 격막공(20)을 구비한 수직격판(5)이 삽입되며, 상면에는 반 원호형상의 트로프(2)가 길이방향으로 형성되고 있고, 이 트로프(2)의 표면에 따라 상부로 갈수록 큰 구경을 갖는 통기공(1)이 불규칙적으로 형성되어 상기 공간부(4)와 통하도록 된 것이며, 상기 상부열풍상자(6a)의 일측단에 형성된 개방부에 열풍유입관(12)을 설치하고, 상기 상부열풍상자(6a)의 타측단과 여기에 인접하는 중간열풍상자(6b)의 일측단 사이와, 상기 중간열풍상자(6b)의 타측단과 여기에 인접하는 하부열풍상자(6c)의 일측단 사이에 각각 열풍유도관(11)을 설치하여 상·중·하부 열풍상자(6a)(6b)(6c)의 공간부(4)와 연통되므로써 S자형의 열풍통로를 형성하게 된다.First, referring to the structure of the screw 8, the screw 8 is composed of a screw shaft 13, a blade 18 and a pin (7), the end of the screw shaft 13 is a belt 16 A hookable pulley 15 is formed, and the blade 18 is attached to the surface of the screw shaft 13 in a spiral shape, and the insertion groove 19 cut in the circumference toward the shaft center of the blade 18 is provided. It is formed by inserting and attaching the one-piece elongate pin 7 in the axial direction at intervals of 90 degrees. Meanwhile, the hot air box 6 accommodating the screw 8 includes an upper hot air box 6a, an intermediate hot air box 6b, and a lower hot air box 6c, and includes a space inside the hot air box 6. (4) is formed, and a vertical plate (5) having a diaphragm hole (20) is inserted in the center thereof, and a semi-circular trough (2) is formed on the upper surface in the longitudinal direction, and the trough (2) Vent holes 1 having a large diameter toward the top along the surface of the irregularly formed so as to communicate with the space portion 4, hot air flow in the opening formed at one end of the upper hot air box (6a) The pipe 12 is provided, between the other end of the upper hot air box 6a and one end of the intermediate hot air box 6b adjacent thereto, and the other end of the middle hot air box 6b and the lower hot air adjacent thereto. The hot air induction pipes 11 are provided between the one end of the box 6c, respectively, and the space 4 of the upper, middle and lower hot air boxes 6a, 6b, 6c and By communicating, the S-shaped hot air passage is formed.
또한, 상기 열풍상자(6a)(6b)(6c)를 설치할때, 중간열풍상자(6b)의 위치를 상부열풍상자(6a)의 고수분 슬러지(17a)와 이송되는 방향으로 적정간격만큼 돌출시켜 상부열풍상자(6a)의 이송종료점에서 자유낙하하는 슬러지(17)가 중간열풍상자(6b)의 이송시작점의 위치에 수용될 수 있도록 배치한다. 따라서, 중간열풍상자(6b)의 이송종료점이 상·하부 열풍상자(6a)(6c)의 이송시작점의 위치보다 적정간격만큼 안으로 들어간 상태에 있게 되어 상기 중간열풍상자(6b)의 이송종료점에서 자유낙하하는 슬러지(17)를 하부열풍상자(6c)의 이송시작점의 위치에 수용할 수 있는 배치구조로 된 것이다.In addition, when the hot air box (6a) (6b) 6c is installed, the position of the intermediate hot air box (6b) is projected by an appropriate interval in the direction to be transported with the high moisture sludge (17a) of the upper hot air box (6a). The sludge 17 freely falling at the transfer end point of the upper hot air box 6a is arranged to be accommodated at the position of the transfer start point of the intermediate hot air box 6b. Therefore, the transfer end point of the intermediate hot air box 6b is in a state in which the transfer end point of the upper hot air box 6a, 6c has been entered in a proper interval from the position of the transfer start point of the upper and lower hot air boxes 6b, and is free at the end point of transfer of the intermediate hot air box 6b. The sludge 17 that falls is to be arranged to accommodate the position of the transfer start point of the lower hot air box (6c).
또한, 각 열풍상자(6)의 측면에 밀폐용 케이싱(9)의 측벽판(10)을 보울트로 조립할 수 있도록 체결구멍(21)이 형성되어 있다.In addition, a fastening hole 21 is formed in the side surface of each hot air box 6 so that the side wall plate 10 of the sealing casing 9 can be assembled with a bowl.
한편, 상기의 밀폐용 케이싱(9)의 하부열풍상자(6)의 슬러지 이송종료점에 위치하도록 배출구(22)를 구비한 하판(23)과, 각각의 스크류축(13)이 자유롭게 회전되도록 소정 위치에 베어링(24)이 내장된 좌·우 측벽을 포함한 측벽판(10)과, 호퍼(25)가 부착되는 주입구(26)와 오염된 공기를 배출하기 위해 흡입송풍기(27)가 부착되는 배기구(28)가 각각 형성된 상판(29)으로 구성되어 있고, 각각의 판은 금속판(30a)-단열판(30b)-금속판(30c)의 3중 구조를 갖는다.On the other hand, the lower plate 23 having a discharge port 22 so as to be located at the sludge transfer end point of the lower hot air box 6 of the sealing casing 9 and the predetermined position so that each screw shaft 13 is free to rotate. Side wall plate 10 including left and right side walls having bearings 24 mounted therein, an inlet 26 to which the hopper 25 is attached, and an exhaust port to which the suction blower 27 is attached to discharge contaminated air. Each of the plates 28 is formed of an upper plate 29, each of which has a triple structure of a metal plate 30a-insulation plate 30b-metal plate 30c.
한편, 구동시스템에 있어서는, 한개의 벨트(16)를 각각의 스크류축(13)에 형성된 풀리(15)에 엇걸어 설치하고, 하부열풍상자(6c)의 한쪽 스크류축(13)에 모우터축(31)을 플랜지(33)로 결합시켜 각각의 스크류(8)가 동시에 구동될 수 있게 하는 것이다.On the other hand, in the drive system, one belt 16 is attached to the pulley 15 formed on each screw shaft 13 and the motor shaft (1) is attached to one screw shaft 13 of the lower hot air box 6c. 31 is coupled to the flange 33 so that each screw 8 can be driven simultaneously.
제3도 및 제4도는 본 발명에 따른 트로프형상에 대한 바람직한 실시예이며, 제3도는 본 발명의 제1실시예로서, 열풍상자(6)의 트로프(2)형상을 반원호상으로 설계한 것이고, 제4도는 본 발명의 제2실시예로서, 열풍상자(6)의 트로프형상을 2/3 원호상으로 설계한 것을 각각 나타낸 것이다.3 and 4 are preferred embodiments of the trough shape according to the present invention, and FIG. 3 is a first embodiment of the present invention, in which the trough 2 shape of the hot air box 6 is designed in a semicircular arc shape. 4 shows the trough shape of the hot air box 6 in a 2/3 arc shape, respectively, as a second embodiment of the present invention.
상기와 같이 구성된 본 발명의 작용 및 효과는 다음과 같다.The operation and effects of the present invention configured as described above are as follows.
종래의 스크류(8)에 있어서는 스크류축(13)과 블레이드(18)만으로 구성되어 있어 트로프(2)표면에 위치한 슬러지(17)를 이송시켜주는 기능만 있었으나, 본 발명에서는 상기 블레이드(18)에 부착이 용이한 일체형 핀(7)을 설치하여 슬러지(17)를 이송 및 교반시켜주도록 된 것이다.In the conventional screw (8) is composed of only the screw shaft 13 and the blade 18 has only a function to transfer the sludge 17 located on the surface of the trough (2), in the present invention, the blade (18) The integrated pin 7 is easy to attach, so that the sludge 17 is transported and stirred.
따라서, 통기공(1)을 통하여 분출되는 열풍(3)을 슬러지(17)에 고루 접촉시켜 주므로써 건조시간을 단축 시킬 수 있다.Therefore, the drying time can be shortened by bringing the hot air 3 blown out through the vent 1 into contact with the sludge 17 evenly.
또한, 각 단계에 도달하는 별도의 이송수단이 없으므로 구조가 간단해지는 장점이 있다. 즉, 호퍼(25)를 통해 유입된 고수분 슬러지(17a)는, 한개의 모우터(14)에 의해 스크류(8)를 동시에 회전시키므로써 수평이송하게 되고, 각 열풍상자(6)의 스크류(8) 이송종료점에 도달하면 슬러지(17)의 질량에 작용하는 중력만으로 다음단계까지 이송된다.In addition, there is no separate transport means to reach each step has the advantage that the structure is simplified. That is, the high moisture sludge 17a introduced through the hopper 25 is horizontally moved by simultaneously rotating the screw 8 by one motor 14, and the screw of each hot air box 6 8) When the transfer end point is reached, only the gravity acting on the mass of the sludge 17 is transferred to the next stage.
최종 건조단계인 하부열풍상자(6c)의 이송종료점에 이르면 탈수처리된 저수분 슬러지(17b)가 배출관(32)을 통해 배출되는 것이다.When the final drying step of the lower end of the hot air box (6c) transfer reaches the end point, the dehydrated low moisture sludge (17b) is discharged through the discharge pipe (32).
본 발명은 기계적 압착등에 의해 1차 탈수처리된 고수분 폐슬러지(함수율 70∼80% 정도)를 소각이 용이하도록 재탈수 처리해주는 2차 탈수처리용으로 적합한 장치인 것이다. 상기 스크류(8)의 회전속도를 5∼10rpm으로 할때, 통상 슬러지(17)내의 함수율은 20% 이하까지 기대할 수 있다.The present invention is a device suitable for secondary dehydration treatment to re-dehydrate the high moisture waste sludge (water content of about 70 to 80%) that is primarily dehydrated by mechanical compression or the like for easy incineration. When the rotational speed of the screw 8 is set to 5 to 10 rpm, the water content in the sludge 17 can be expected up to 20% or less.
또한, 본 발명은 설치공간의 제한에 따른 용적변형이 쉬운 구조로 되어 있으므로 소형제작이 가능하여 산업쓰레기 처리용은 물론, 공동주택과 같은 곳의 일반처리용으로도 유용하다.In addition, the present invention has a structure that is easy to deform the volume according to the limitation of the installation space, it is possible to make a small production, it is useful not only for industrial waste treatment, but also for general treatment of places such as apartment houses.
또한, 보울트를 사용하여 체결하므로 분해·조립이 간편하여 마모에 따른 부품의 교체·보수 및 청소작업이 용이하고, 따라서 반 영구적으로 사용할 수 있는 장점이 있다.In addition, since the bolt is fastened using a bolt, it is easy to disassemble and assemble, so that replacement, repair, and cleaning of parts due to wear are easy, and thus, there is an advantage that it can be used semi-permanently.
또한, 밀폐용 케이싱(9)부재로, 3중 금속판을 사용하여 방온효과를 극대화 하므로써 열손실을 막을 수 있다.In addition, the sealing casing (9) member, it is possible to prevent heat loss by maximizing the room temperature effect by using a triple metal plate.
한편, 본 발명에 따른 열풍상자(6)는 이송·교반중인 슬러지(17)의 하부로부터 열풍(3)이 공급되어 슬러지(17) 내부를 통과시키는 건조방법을 병행한 복합형 건조기로서, 상기의 건조방법은 가열된 트로프(2) 표면상에 슬러지(17)가 이송되면서 1차 건조가 이루어지고, 통기공(1)으로부터 분출되는 열풍(3)이 슬러지(17)내를 통과하여 유동시키면서 2차 건조가 이루어지며, 분출된 열풍(3)이 교반중인 슬러지(17)에 직접 접촉하면서 3차 건조가 이루어지는 것이다.On the other hand, the hot air box 6 according to the present invention is a combined dryer in which the hot air 3 is supplied from the lower portion of the sludge 17 being transported and stirred to pass through the sludge 17 in a parallel manner. The drying method is primarily carried out while the sludge 17 is transported on the heated trough 2 surface, and hot air 3 ejected from the vent hole 1 flows through the sludge 17 while flowing. The primary drying is performed, and the tertiary drying is performed while the jetted hot air 3 is in direct contact with the stirring sludge 17.
여기서, 열풍(3)이 유입되는 경로를 살펴보면, 열풍유입관(12)의 선단에 압력조절장치(미도시)가 설치되어 있고, 이 열풍 유입관(12)을 통과한 열풍(3)은 상부열풍상자(6a)내의 공간부(4)를 통과하면서 일부는 통기공(1)을 통해 분출되고, 나머지는 수직격판(5)에 형성된 격막공(20)을 계속 통과하여 그 일부는 다시 통기공(1)으로 분출되며, 또 그 나머지는 열풍유도관(11)을 따라 안내되어 밀폐된 하부열풍상자(6c)의 이송종료점에 이르기까지 분출 및 통과를 반복하게 된다. 이때, 수직격판(5)은 열풍(3)이 부딪혀서 와류가 발생되므로써 통기공(1)으로 상기 열풍(3)의 일부가 충분히 머무르면서 통기공(1)으로 분출될 수 있도록 흐름을 지연시켜주는 것이며, 상기 압력조절장치는 통기공(1)으로 빠져나간 열풍(3)의 양만큼을 재공급함에 있어서 통로내에 형성된 압력이 일정하게 유지되도록 하기 위한 것이다.Here, looking at the path through which the hot air (3) is introduced, a pressure regulator (not shown) is installed at the tip of the hot air inlet pipe (12), the hot air (3) passing through the hot air inlet pipe 12 is the upper portion While passing through the space portion 4 in the hot air box 6a, a part is blown out through the vent hole 1, and the rest is continuously passed through the diaphragm hole 20 formed in the vertical partition plate 5, and part of the vent hole is again. (1) is ejected, and the remainder is guided along the hot air induction pipe (11) to repeat the ejection and passage until the end point of transport of the sealed lower hot air box (6c). At this time, the vertical plate (5) is to delay the flow so that the hot air (3) is hit by the impact caused by the vortex generated so that a part of the hot air (3) to the vent hole (1) to be sufficiently discharged to the vent hole (1) The pressure regulating device is intended to maintain a constant pressure formed in the passage in resupplying by the amount of the hot air (3) exiting the vent (1).
또한, 통기공(1)에서 분출된 열풍(3)은 트로프(2) 상부로 유동되어 슬러지(17) 상부를 통과한 후 상판(29)에 형성된 배기구(28)를 통해 배출된다.In addition, the hot air (3) blown out of the vent hole (1) flows to the top of the trough (2) and passes through the top of the sludge 17 is discharged through the exhaust port 28 formed in the upper plate (29).
또한, 통기공(1)의 구경을 트로프(2) 상부로 갈수록 크게 형성시켜 상·하부 위치간의 압력차를 해소한 것이다.In addition, the diameter of the vent hole 1 is made larger toward the upper part of the trough 2 to solve the pressure difference between the upper and lower positions.
제4도에 도시한 제2실예는, 트로프(2)형상을 2/3 원호상으로 설계하여 통기공(1)을 상부까지 최대한 형성시키므로써 상부까지 비산되는 슬러지(17)에 열풍(3)이 공급되도록 한 것이다. 상기의 열풍상자(6)는 주변환경 및 용도에 따라 갯수 및 배치를 변경하여 구성할 수도 있다.In the second embodiment shown in FIG. 4, the trough 2 is designed in a 2/3 arc shape, and the hot air 3 is applied to the sludge 17 scattered to the upper part by forming the air vent 1 to the upper part as much as possible. It is to be supplied. The hot air box 6 may be configured by changing the number and arrangement according to the surrounding environment and use.
이상에서 설명되어진 바와같이 본 발명에 따른 유동상 스크류 복합형 건조기는 건조효율이 우수하고, 운전동력소비가 적으며, 소형화가 가능한 장치인 것이다.As described above, the fluidized bed screw combined dryer according to the present invention has excellent drying efficiency, low driving power consumption, and is capable of miniaturization.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940025470A KR0120836B1 (en) | 1994-10-05 | 1994-10-05 | Fluidized bed-screw hybrid drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940025470A KR0120836B1 (en) | 1994-10-05 | 1994-10-05 | Fluidized bed-screw hybrid drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960014029A KR960014029A (en) | 1996-05-22 |
| KR0120836B1 true KR0120836B1 (en) | 1997-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940025470A KR0120836B1 (en) | 1994-10-05 | 1994-10-05 | Fluidized bed-screw hybrid drier |
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| Country | Link |
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| KR (1) | KR0120836B1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020041374A (en) * | 2002-05-02 | 2002-06-01 | 하윤식 | System to incinerate sewage sludge |
| KR100361909B1 (en) * | 1999-08-03 | 2002-11-23 | 김애자 | The Drying Device for Sludge |
| KR100418412B1 (en) * | 2000-12-22 | 2004-02-11 | 케페라 그린(주) | Apparatus to iacinerate sewage sludge |
| KR100430073B1 (en) * | 2001-11-30 | 2004-05-10 | 주식회사 대저토건 | A drying machine for waste water and sludge |
| KR100436985B1 (en) * | 2002-03-25 | 2004-06-23 | 김기태 | Spiral and axial heat flow type dryer |
| KR101958216B1 (en) | 2018-08-02 | 2019-03-14 | 경북대학교 산학협력단 | Vertical 3-shafts mixing semi-dry anaerobic digester and method for repairing the same |
| KR20190127007A (en) | 2018-05-03 | 2019-11-13 | 강석우 | Screw type drying apparatus |
| KR102632238B1 (en) | 2023-08-03 | 2024-02-01 | 케이씨 환경서비스 주식회사 | Sewage Sludge Odor Reduction Heat Treatment Electric Dryer |
| KR102632237B1 (en) | 2023-08-03 | 2024-02-02 | 케이씨 환경서비스 주식회사 | Steam Coal Manufacturing System Using Sewage Sludge Odor Reduction Heat Treatment Electric Dryer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100478087B1 (en) * | 2000-06-09 | 2005-03-24 | 주식회사 포스코 | apparatus for treating resin waste water |
| KR102251545B1 (en) * | 2021-01-29 | 2021-05-13 | 주식회사 에취켓 | Screw press with dewatering structure using multi-wing screw |
-
1994
- 1994-10-05 KR KR1019940025470A patent/KR0120836B1/en not_active IP Right Cessation
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100361909B1 (en) * | 1999-08-03 | 2002-11-23 | 김애자 | The Drying Device for Sludge |
| KR100418412B1 (en) * | 2000-12-22 | 2004-02-11 | 케페라 그린(주) | Apparatus to iacinerate sewage sludge |
| KR100430073B1 (en) * | 2001-11-30 | 2004-05-10 | 주식회사 대저토건 | A drying machine for waste water and sludge |
| KR100436985B1 (en) * | 2002-03-25 | 2004-06-23 | 김기태 | Spiral and axial heat flow type dryer |
| KR20020041374A (en) * | 2002-05-02 | 2002-06-01 | 하윤식 | System to incinerate sewage sludge |
| KR20190127007A (en) | 2018-05-03 | 2019-11-13 | 강석우 | Screw type drying apparatus |
| KR101958216B1 (en) | 2018-08-02 | 2019-03-14 | 경북대학교 산학협력단 | Vertical 3-shafts mixing semi-dry anaerobic digester and method for repairing the same |
| KR102632238B1 (en) | 2023-08-03 | 2024-02-01 | 케이씨 환경서비스 주식회사 | Sewage Sludge Odor Reduction Heat Treatment Electric Dryer |
| KR102632237B1 (en) | 2023-08-03 | 2024-02-02 | 케이씨 환경서비스 주식회사 | Steam Coal Manufacturing System Using Sewage Sludge Odor Reduction Heat Treatment Electric Dryer |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960014029A (en) | 1996-05-22 |
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