KR101813631B1 - Treatment system of wastewater sludge and Sewage sludge - Google Patents

Treatment system of wastewater sludge and Sewage sludge Download PDF

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Publication number
KR101813631B1
KR101813631B1 KR1020160154021A KR20160154021A KR101813631B1 KR 101813631 B1 KR101813631 B1 KR 101813631B1 KR 1020160154021 A KR1020160154021 A KR 1020160154021A KR 20160154021 A KR20160154021 A KR 20160154021A KR 101813631 B1 KR101813631 B1 KR 101813631B1
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South Korea
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sludge
treated
tank
receiving
speed mixer
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KR1020160154021A
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Korean (ko)
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박태선
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주식회사 엠앤브이코리아
이엠솔루션 주식회사
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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
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
    • 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
    • F26B3/18—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact
    • F26B3/22—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration
    • F26B3/24—Drying solid materials or objects by processes involving the application of heat by conduction, i.e. the heat is conveyed from the heat source, e.g. gas flame, to the materials or objects to be dried by direct contact the heat source and the materials or objects to be dried being in relative motion, e.g. of vibration the movement being rotation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/20—Sludge processing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing

Abstract

The present invention provides a system to treat sludge from wastewater and sewage, capable of making resources by recycling organic sludge with a relatively high moisture content or slime, generated from precipitation during wastewater and sewage treatment procedures, into fuel, soil conditioners, or other construction materials. The treatment system includes: a hopper supplying sludge to be treated; a compressive transfer duct transferring untreated sludge, supplied from the hopper, through compression; a high-speed mixer receiving and mixing the untreated sludge from the duct with collected treated sludge; branch transfer ducts receiving the mixed sludge from the mixer to distribute the mixed sludge to both sides; a pair of first and second dryers installed in both sides of the high-speed mixer, and connected in a zigzag form with multiple layers of bodies transferring and drying the mixed sludge by using the rotation of a multitube heat exchanger including a ribbon type screw; bucket elevators receiving the treated sludge from the second dryer and transferring the sludge to the upper part; a tank receiving and storing the treated sludge returned from the bucket elevators; a return bucket elevator receiving the treated sludge from the tank to return the sludge to the high-speed mixer; and a pellet former connected to the bottom of the tank to receive the treated sludge from the tank and form the sludge into pellets. As such, the present invention is capable of converting the sludge into resources through a series of the consecutive processes.

Description

하ㆍ폐수 슬러지의 처리시스템{Treatment system of wastewater sludge and Sewage sludge}Description: TECHNICAL FIELD The present invention relates to a treatment system for wastewater sludge and sludge sludge,

본 발명은 하수나 폐수의 처리과정에서 침전되어 생성되는 오니 또는 비교적 함수율이 높은 유기성 슬러지들을 연료나 토양개량제 또는 그 이외 건설자재로 재활용하여 자원화시킬 수 있도록 한 하ㆍ폐수 슬러지의 처리시스템에 관한 것이다.The present invention relates to a sewage / wastewater sludge treatment system capable of recycling organic sludge produced by sedimentation in sewage or wastewater treatment or organic sludge having a relatively high water content to a fuel or a soil improvement agent or other construction materials .

하ㆍ폐수의 처리과정에서 생성되는 침전물인 슬러지는 약 20∼50%의 유기질을 함유하고 있으며, 함수율도 75∼85%로 높기 때문에 그 처리가 매우 어렵다.The sludge, which is a precipitate produced in the treatment of waste water and wastewater, contains about 20 to 50% of organic matter and its water content is high at 75 to 85%.

그러한 비교적 함수율이 높은 슬러지를 근래에 와서 고형화 연료나 토양개량제 또는 벽돌이나 시멘트 원료 등의 건설자재로 재활용하는 자원화 추세이다.Sludge having a relatively high water content has recently come to be recycled as a solidifying fuel, a soil conditioner, or a construction material such as brick or cement raw material.

이러한 자원화를 위한 하ㆍ폐수 슬러지의 처리는 현재까지 여러 가지가 개발되어 사용되고 있는데, 그 일례를 보면 슬러지에 함유되어 있는 수분은 열원으로 증발 또는 기계적인 압축이나 원심력으로 분리하여 감량시키게 하고 있으나, 수분의 감량이 용이하지 않았으며, 그 감량 또한 균일하지 못하여 자원으로 재활용시 많은 문제점이 따르고 있는 것이다.Various treatments have been developed and used to treat sewage and wastewater sludge for this purpose. For example, the water contained in the sludge is separated from the sludge by evaporation or mechanical compression or centrifugal force, And the weight loss is not uniform. Thus, there are many problems in recycling as resources.

그리하여 유기성 슬러지를 대기 온도에서 건조공정을 이루어 연료비 절감화로 폐자원의 에너지화와 저탄소 녹색성장의 기반을 이룰 수 있는 자원 재활용을 위한 하ㆍ폐수 슬러지의 처리가 개발되어 제시되고 있다. Thus, the treatment of sewage and wastewater sludge for the recycling of resources, which can achieve energy reduction of waste resources and low carbon green growth by reducing the fuel cost by drying the organic sludge at the atmospheric temperature, has been developed and proposed.

이를 구체적으로 설명하면, 초음파 파쇄공정유닛의 초음파 진동부를 이용하여 슬러지의 함유수를 분리시키고, 이렇게 함유수가 분리된 1차 처리 슬러지를 고액 탈수공정유닛의 압축롤링을 이용해 기계적인 압축공정으로 탈수시킨 2차 처리 슬러지를 배합공정유닛에서 함수율이 낮은 건조 슬러지를 배합시킨다.Specifically, the water contained in the sludge is separated using the ultrasonic vibrating unit of the ultrasonic crushing process unit, and the primary treated sludge in which the contained water is thus separated is dehydrated by a mechanical compression process using compression rolling of the solid-liquid dehydration unit The secondary treated sludge is blended with a dry sludge having a low water content in the compounding unit.

그리고 배합공정유닛으로부터 배출된 3차 처리 슬러지를 풍화 건조공정유닛에서 회전시키면서 송풍기 및 하이드로 사이클론을 이용해 함수율을 다시 낮춘 후, 최종단계인 건조슬러지 패킹유닛에서 함수율 10% 이하로 건조 처리된 슬러지를 대기와 차단되도록 밀폐포장하고 있는 것이다.Then, the tertiary treated sludge discharged from the blending process unit is rotated in the weathering drying process unit, the water content is again lowered by using the blower and the hydrocyclone, and then the dried sludge packing unit in the final stage, So that it is hermetically sealed.

그런데 이러한 초음파와 기계적인 압축ㆍ회전을 이용한 슬러지의 처리에서는 비교적 함수율이 높은 하ㆍ폐수 슬러지의 수분 감량이 저조하며, 또한 처리 설비 비용이 고가인 것에 반하여 생산성이 저조한 문제점이 있다.However, in the treatment of sludge using such ultrasonic waves and mechanical compression and rotation, the water content of the lower and wastewater sludge having a relatively high water content is low, and the cost of the treatment facilities is high, while the productivity is low.

그리하여 근래에는 일련의 연속적인 처리 공정으로 생산성 향상과 슬러지의 수분 감량이 우수한 하ㆍ폐수 슬러지의 처리시스템 개발이 요구되고 있는 실정이다.Thus, in recent years, it is required to develop a treatment system for sewage and wastewater sludge which is improved in productivity and water loss of sludge by a series of continuous treatment processes.

대한민국 등록특허 제10-1352064호Korean Patent No. 10-1352064 대한민국 등록특허 제10-0904065호Korean Patent No. 10-0904065

본 발명은 상기에서와 같은 사정을 고려하여 이루어진 것으로, 그 목적은 처리 슬러지의 회수하여 미처리 슬러지와의 배합으로 함수율이 낮추어진 혼합 슬러지 를 회전방식의 열교환유닛들이 각기 내장된 동체들을 다단계적으로 이룬 건조기들에서 1ㆍ2차적으로 통과하며 건조과정을 이루어 압출기를 통해 펠릿으로 성형시키게 함으로서, 재생 자원의 활용성을 향상시킨 하ㆍ폐수 슬러지의 처리시스템를 제공하는 것이다.SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and its object is to provide a sludge treatment method and a sludge treatment method in which a treated sludge is recovered and mixed with an untreated sludge, The present invention also provides a system for treating waste water and wastewater sludge which is improved in utilization of recycled resources by being passed through the dryer in a primary and secondary stages and being formed into a pellet through an extruder.

이러한 본 발명은 하수나 폐수의 처리과정에서 침전되어 생성되는 오니 또는 비교적 함수율이 높은 유기성 슬러지들을 연료나 토양개량제 또는 그 이외 건설자재로 재활용하여 자원화시킬 수 있도록 한 하ㆍ폐수 슬러지의 처리시스템을 제공함에 의해 달성되게 되는데, 이 처리시스템은 처리할 슬러지들을 공급시키는 호퍼와, 호퍼로부터 공급되는 미처리 슬러지를 압축작용을 이용하여 이송시키게 하는 압송관로와, 압송관로를 통해 공급되는 미처리 슬러지와 회수시킨 처리 슬러지를 공급받아 혼합슬러지화 하는 고속믹서와, 고속믹서로부터 혼합슬러지를 받아내어 양측으로 분배이송시키는 분기이송관로들과, 고속믹서의 양측으로 병설되고 분기이송관로들 각기로부터 상기 혼합슬러지를 공급받아 리본형 스크루가 구비되는 다관형의 열교환기 회전을 이용하여 이송과 건조를 이루게 하는 다단계의 동체들이 지그재그식으로 연결되며 연결관로로 연이어지는 한 쌍의 제1 및 제2건조기들과, 제2건조기들로부터 배출되는 처리 슬러지를 받아내어 상부로 이송시키는 버킷 엘리베이터들과, 버킷 엘리베이터들로부터 반송된 처리 슬러지를 받아 저장하는 탱크와, 탱크로부터 처리 슬러지를 받아내어 고속믹서 측으로 회송시키는 반송 버킷 엘리베이터 및 탱크의 하부에 연이어 탱크로부터 처리 슬러지를 공급받아 펠릿형태로 성형시키는 펠릿 성형기를 포함하여서, 일련의 연속공정으로 슬러지를 처리하여 자원화할 수 있게 된다.The present invention provides a sewage / wastewater sludge treatment system capable of recycling organic sludge produced by sedimentation in sewage or wastewater treatment process or organic sludge having a relatively high water content to a fuel, a soil improvement agent, or other construction material, This treatment system includes a hopper for supplying sludge to be treated, a feed conveyor for conveying the untreated sludge fed from the hopper by a compression action, an untreated sludge fed through a feed conveyor line and a recovered treatment A high-speed mixer for supplying sludge to the mixed sludge, a branch conveying line for receiving the mixed sludge from the high-speed mixer and distributing the mixed sludge to both sides thereof, and a sludge supplying unit for supplying the mixed sludge to the branch conveying lines A tubular heat exchanger equipped with a ribbon type screw A plurality of first and second dryers connected to the connection pipe and connected to the first and second dryers by a staggered connection, A conveying bucket elevator for taking the treated sludge from the tank and returning it to the side of the high-speed mixer, and a treatment sludge successively supplied from the tank to the lower portion of the tank Including a pellet molding machine for molding into a pellet form, the sludge can be treated and recycled by a series of continuous processes.

본 발명에 따른 하ㆍ폐수 슬러지의 처리시스템에 의하면, 열매체를 이용한 열교환기가 구비되는 동체들이 적어도 1단계 이상으로 이룬 건조기를 이용해 슬러지를 일련의 연속적이고 반복적인 건조과정을 통한 우수한 수분감량과, 그리고 건조된 처리 슬러지를 소정의 성형공정을 통해 펠릿화 함으로써, 재생 자원의 활용성이 우수한 효과가 있다.According to the present invention, the waste water sludge treatment system comprises at least one stage in which at least one of the moving bodies is equipped with a heat exchanger using a heating medium, and the sludge is subjected to a series of successive and repeated drying processes, The dried sludge is pelletized through a predetermined molding process, and the utilization of recycled resources is excellent.

또 본 발명은 슬러지를 간편히 처리함으로써, 지하수의 수질을 보존시키고 환경공해를 예방할 수 있는 효과도 있는 것이다.The present invention also has the effect of preserving the quality of ground water and preventing environmental pollution by simply treating the sludge.

도 1은 본 발명 하ㆍ폐수 슬러지의 처리시스템의 전체적인 구성을 개략적으로 보여 주는 평면도.
도 2는 본 발명 하ㆍ폐수 슬러지의 처리시스템의 전체적인 구성을 개략적으로 보여 주는 정면도.
도 3은 본 발명 하ㆍ폐수 슬러지의 처리시스템에 적용되는 건조기의 구성을 보여 주는 정면도.
도 4는 본 발명 하ㆍ폐수 슬러지의 처리시스템에 적용되는 건조기의 동체를 발췌하여 보여 주는 단면도.
도 5는 도 3의 종단면도.
도 6은 도 4의 A-A선 부분을 따라 절단하여 보여 주는 단면도.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view schematically showing the overall structure of a treatment system for a wastewater sludge of the present invention. Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sludge treatment system.
3 is a front view showing the structure of a dryer applied to a treatment system for sewage sludge of the present invention.
4 is a cross-sectional view showing the body of the dryer applied to the treatment system of the lower and wastewater sludge of the present invention.
Fig. 5 is a longitudinal sectional view of Fig. 3; Fig.
FIG. 6 is a cross-sectional view taken along line AA in FIG. 4. FIG.

다음 본 발명의 일 실시 예를 설명하겠다 도 1 및 도 2에는 본 발명에 따른 하ㆍ폐수 슬러지의 처리시스템 상세히 도시되어 있는데, 일반 생활하수나 각종 산업장에서 유출되는 폐수 등의 하수/폐수처리는 대략 유입되는 원수 내의 모래 또는 각종 이물질 등 부유물을 분리처리와 처리장의 수위조절이나 정량처리를 위해 유량 조절을 수행하는 유입지와 침전지, 그리고 폭기조 등의 여러 단계를 거치며 소기의 수 처리를 이루게 된다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 and FIG. 2 show details of a treatment system for sewage and wastewater sludge according to the present invention. The water in the raw water or the floating water such as various kinds of foreign matter is processed through the various steps such as the separation treatment, the inflow, the sedimentation, and the aeration tank, which performs the flow control for the water level control or the quantitative treatment of the treatment water.

본 발명은 상기에서와 같은 수 처리 과정에서 원수 내의 부유물 제거와 활성오니를 이용하여 폐수의 분해 및 침전시 침전물들이 필연적으로 발생하고 있는 것으로, 이러한 침전물인 비교적 함수율이 높은 슬러지들을 재활용하여 자원화시킬 수 있는 하ㆍ폐수 슬러지의 처리시스템을 제공하는 것이다.In the present invention, sediments are inevitably generated during the decomposition and precipitation of wastewater using the removal of suspended solids in the raw water and the activated sludge in the water treatment process as described above. The sludge having a relatively high water content, which is such a precipitate, And to provide a treatment system for the waste water and wastewater sludge.

본 발명은 크게 나누어 처리할 슬러지가 저장되는 호퍼(100)와 고속믹서(200), 그리고 고속믹서(200)의 좌우 양측으로 병설되는 한 쌍의 제1 및 제2건조기들(301,302)과, 처리된 슬러지를 저장하는 탱크(400)와 펠릿성형기(600)로 구성된다.The present invention includes a hopper 100 and a high-speed mixer 200 in which sludge to be divided is stored, a pair of first and second dryers 301 and 302 installed side by side on both sides of the high-speed mixer 200, A tank 400 for storing the sludge and a pellet molding machine 600.

먼저, 호퍼(100)는 수 처리장들로부터 수거되어 운반차량을 이용하여 운반된 슬러지의 처리를 위해 정량 공급시키게 될 것이다.First, the hopper 100 will be collected from water treatment plants and supplied in a metered quantity for the treatment of the conveyed sludge using the transportation vehicle.

또 호퍼(100)의 하부에는 호퍼(100)로부터 공급되는 처리할 슬러지, 즉 미처리 슬러지를 피스톤의 압축작용을 이용해 다음 공정인 고속믹서(200) 측으로 이체 송시키게 하는 압송관로(110)가 연이어 설치되어 있다.In the lower part of the hopper 100, a feed pipe 110 for feeding the sludge to be processed, that is, the untreated sludge, supplied from the hopper 100 to the high-speed mixer 200 side by using the compression action of the piston, .

또한 고속믹서(200)는 고속회전하는 한 쌍의 교반날(201)을 이용해 압송관로(110)를 통하여 공급되는 미처리 슬러지와 이후에 설명할 건조기들(310,320)에서 건조 처리된 처리 슬러지를 회수시키어 소정의 교반공정을 통해 혼합 슬러지화 한다. 이때 처리 또는 미처리 슬러지의 혼합비는 약 6:4정도이다.Also, the high-speed mixer 200 recovers the untreated sludge supplied through the feed conveying line 110 and the treated sludge dried by the driers 310 and 320 to be described later by using a pair of stirring blades 201 rotating at high speed And the mixture is sludge mixed by a predetermined stirring process. The mixing ratio of treated or untreated sludge is about 6: 4.

그리고 고속믹서(200)에는 그 고속믹서(200)로부터 혼합 슬러지를 받아내어 양측으로 분배이송시키는 분기이송관로들(210,220)이 연이어 설치된다.The high-speed mixer 200 is provided with branch conveying lines 210 and 220 for receiving mixed sludge from the high-speed mixer 200 and distributing the mixed sludge to both sides.

한편 고속믹서(200)의 양측으로는 직렬배치되어 분기이송관로들(210,220) 각기로부터 혼합 슬러지를 분배 공급받아 열매체를 이용한 다단계적인 건조과정을 수행하는 한 쌍의 제1 및 제2건조기들(301,302)이 구비되어 있다. 이때 제1 및 제2건조기들(301,302)의 사이는 연결관로(303)으로 연이어 일련의 건조공정을 연속적이고 반복으로 수행하게 될 것이다.Meanwhile, a pair of first and second dryers 301 and 302 arranged in series on both sides of the high-speed mixer 200 and performing a multistage drying process using the heating medium by distributing and supplying the mixed sludge from each of the branch conveying pipes 210 and 220 . At this time, the first and second dryers 301 and 302 will continuously and successively perform a series of drying processes to the connecting pipe 303.

또 제2건조기(302)의 후단으로는 그 제2건조기(302)로부터 배출되는 처리 슬러지를 받아내어 상부로 이송시키는 한 쌍의 버킷 엘리베이터들(501,502)이 구비되어 있다.The second dryer 302 has a pair of bucket elevators 501 and 502 for receiving the treated sludge discharged from the second dryer 302 and transferring the treated sludge to the upper portion.

또한 버킷 엘리베이터들(501,502)의 후방으로는 그 버킷 엘리베이터들(501,502)로부터 이송된 처리 슬러지를 받아 저장하는 탱크(400)가 구비된다.The bucket elevators 501 and 502 are provided at the rear thereof with a tank 400 for receiving and storing the treated sludge transferred from the bucket elevators 501 and 502.

그리고 상기에서의 고속믹서(200)와 탱크(400)의 사이에 탱크(400)로부터 처리 슬러지를 받아내어 고속믹서(200) 측으로 회송시키게 하는 반송 버킷 엘리베이터(503)를 갖는다.And a conveying bucket elevator 503 for receiving the treated sludge from the tank 400 and returning the treated sludge to the high-speed mixer 200 side between the high-speed mixer 200 and the tank 400 described above.

또 탱크(400)의 하부에 연이어 그 탱크(400)로부터 처리 슬러지를 공급받아 펠릿형태로 성형시키는 펠릿 성형기(600)가 연이어 설치될 것이다.In addition, a pellet molding machine 600 for continuously supplying the treated sludge from the tank 400 to the lower part of the tank 400 and molding the pellet into a pellet shape will be installed.

도 3 내지 도 7에는 본 발명 하ㆍ폐수 슬러지의 처리시스템에 적용되는 제1 및 제2건조기들(301,302)의 예가 상세하게 도시되어 있다.3 to 7 show an example of the first and second dryers 301 and 302 applied to the treatment system of the present invention wastewater sludge in detail.

도면에서 310은 기대이다. 이 기대(310)는 형강을 이용하여 직육면체의 틀로 이루어 적어도 2조 이상 병렬로 연속 배치되어 처리할 폐기물의 건조공간과 이송경로를 제공하는 동체들(320)이 설치된다.In the drawing, 310 is expectation. The base 310 is formed of a rectangular parallelepiped frame using a steel frame, and at least two sets of the moving bodies 320 are disposed in parallel to provide a drying space for the waste to be treated and a transportation path.

이러한 동체들(320) 각기는 전ㆍ후방에서 폐기물의 공급 또는 이송을 위한 입ㆍ출구(320a,320b)가 인접 측과 교호적으로 구비되어 처리할 폐기물들이 지그재그식으로 이송되면서 소기의 건조공정을 이루게 될 것이다.In each of the moving bodies 320, the inlet and outlet 320a and 320b for supplying or conveying waste are provided alternately with the adjacent sides in the front and rear sides, and the wastes to be treated are transferred in a zigzag manner, Will be achieved.

또 상기에서와같이 상하 측에서 병렬로 배치되는 동체들(320) 인접 측에는 그 동체(320) 건조과정에서 필연적으로 발생하는 습기를 외부로 배출시키기 위한 배기 매니폴드(330)가 설치되어 있다. 이때 매니폴드(330)는 주관(332)과, 그 주관(332)에 등 간격으로 설치되어 각 동체(320)로부터 습기들을 배출시키게 하는 분지관들(334)로 이루고 있다.Also, as described above, an exhaust manifold 330 for discharging moisture, which is inevitably generated in the drying process of the body 320, to the outside is provided on the adjacent side of the bodies 320 arranged in parallel on the upper and lower sides. The manifold 330 is composed of a main pipe 332 and branch pipes 334 which are equidistantly provided in the main pipe 332 and allow moisture to be discharged from the respective pipes 320.

또한 동체(320) 내에는 그 동체(320)의 길이방향에서 별도의 구동모터(M)에 의해 회전되게 설치되고, 별도의 가열장치에 의해 고열로 가열된 열매체가 강제적으로 순환하는 다관형의 열교환기(340)가 내장되어 있다. In addition, the moving body 320 is provided with a separate driving motor M in the longitudinal direction of the moving body 320, and is provided with a multi-tubular heat exchange (340) are incorporated.

이러한 다관형의 열교환기(340)는 도 5에서와같이 좌우 양측에서 배치되는 한 쌍의 헤더들(342,344)과, 이 헤더들(342,344) 사이에서 인접 측과 간격이 유지되어 배치되는 다수의 분기관들(346), 그리고 그 분기관들(346)의 둘레 길이방향을 따라 일정 피치로 구비되는 리본형의 스크루(348)를 갖는다. 이때 스크루(348)는 처리할 폐기물의 이송과 그 스크루(348)에서 등 간격으로 배치되어 동체(320) 내의 저면에 정체되는 폐기물을 끌어올려 동체(320) 정점 측에서 낙하방식으로 비산시켜 분기관들(346)과 충돌 또는 그 분기관들(346) 사이로 통과되게 하면서 폐기물의 뭉침현상을 방지시키고 건조를 이루게 하는 패들들(349)을 갖는다.As shown in FIG. 5, the multi-tubular heat exchanger 340 includes a pair of headers 342 and 344 disposed on the left and right sides, and a plurality of tubes 342 and 344 spaced apart from the adjacent sides between the headers 342 and 344. [ Shaped screws 348 provided at predetermined pitches along the circumferential direction of the organs 346 and the branch orifices 346 thereof. At this time, the screw 348 moves the wastes to be treated and the wastes to be stagnated on the bottom surface of the moving body 320 by equally spacing from the screw 348, And paddles 349 for preventing the agglomeration of the waste while allowing it to pass between the crests 346 and the branches or branches 346 thereof.

한편 각기의 동체들(320) 입구(320a) 또는 출구(320b) 사이에는 덩어리 형태로 공급 및 이송되는 폐기물을 잘게 부스러뜨리는 파쇄유닛들(360)이 구비되어 있다.Between the inlet 320a and the outlet 320b of each of the moving bodies 320, there are provided crushing units 360 for finely crushing the waste supplied and conveyed in the form of a lump.

여기서, 파쇄유닛(360)은 공급 또는 건조과정에서 응집제나 이송과정 선후 측에서의 압축에 의해 뭉쳐진 폐기물을 잘게 부스러뜨리어서 열교환기(340) 분기관들(346)과의 열접촉을 증대시키어 건조효율을 보다 향상시킬 수 있을 것이다.Here, the crushing unit 360 crushes the agglomerated waste by the coagulation agent or the compression at the downstream side in the feeding or drying process, thereby increasing the thermal contact with the orifices 346 of the heat exchanger 340, It can be improved.

이렇게 구성되는 건조장치는 동체들(320)이 폐기물을 지그재그식으로 이송시키면서 동체들(320) 각기에서의 열교환기(340)가 회전하면 스크루(338)가 폐기물의 이송과 아울러, 동체(320) 저면의 폐기물들이 패들(349)을 이용해 정점에서 비산되어 분기관들(346) 사이로 통과하면서 순차적이고 다단계적으로 연속 건조를 이룬다.When the heat exchanger 340 in each of the moving bodies 320 rotates while the moving bodies 320 zigzag the wastes by the moving bodies 320, the screw 338 moves the moving bodies 320, The bottom wastes are scattered at the apex using the paddle 349 and pass through the branches 346 to achieve sequential, multi-step continuous drying.

그러면 본 발명 하ㆍ폐수 슬러지의 처리시스템 처리과정을 설명하면, 호퍼(100)로부터 처리할 미처리의 슬러지가 정량배출되어 압송관로(110)를 통하여 고속믹서(200) 측으로 공급된다. 이때 고속믹서(200)에서는 소정의 교반공정을 통해 미처리 슬러지와 탱크(400) 측으로부터 반송 버킷 엘리베이터(503)를 이용해 회수되는 처리 슬러지가 배합되어 함수율이 낮아진 혼합 슬러지화 시킨다.The untreated sludge to be treated from the hopper 100 is discharged in a predetermined amount and supplied to the high-speed mixer 200 through the feed conveyer line 110. At this time, the high-speed mixer 200 mixes the untreated sludge with the treated sludge recovered from the tank 400 side by using the conveying bucket elevator 503 through a predetermined stirring process to make mixed sludge having a low water content.

또 고속믹서(200)로부터 혼합 슬러지를 분기이송관로들(210,220)을 통하여 제1 건조기(301)와 제2 건조기(302)에 순차적으로 통과시키면서 일련의 건조공정을 연속적이고 반복으로 수행하게 되는데, 이를 더 구체적으로 설명하면 슬러지가 동체(20)의 입구(20a)를 통해 투입되면 동체(20) 내에서 회전하는 열교환기(40)의 리본형 스크루(40)에 의해 출구(20b) 측으로 이송된다.Also, a series of drying processes are continuously and repeatedly performed while sequentially passing the mixed sludge from the high-speed mixer 200 to the first drier 301 and the second drier 302 through the branch transfer pipes 210 and 220, More specifically, when the sludge is introduced through the inlet 20a of the moving body 20, the sludge is transferred to the outlet 20b side by the ribbon-shaped screw 40 of the heat exchanger 40 rotating in the moving body 20 .

이렇게 슬러지가 이송됨과 동시, 스크루(40)에 구비되는 패들들(50)에 의해서 슬러지는 동체(20)의 바닥에서 정점 측으로 끌어올려 그 정점 측에서 비산시키어 열교환기(40)의 분기관들(46) 사이를 통과시켜 슬러지의 뭉침을 방지하며 소정의 건조과정을 이루게 될 것이다. The sludge is drawn up from the bottom of the body 20 to the vertex side by the paddles 50 provided in the screw 40 and scattered at the apex side of the body 20, 46 to prevent the sludge from being clumped and to perform a predetermined drying process.

또한 동체들(20)의 사이에서 파쇄유닛(60)이 구비되어 전 건조과정에서 유입되는 슬러지를 잘게 부스러뜨리어 후 건조과정에서의 교반과 건조는 물론, 슬러지의 뭉침현상을 완전방지시키게 된다.In addition, the crushing unit 60 is provided between the moving bodies 20 so that the sludge flowing in the entire drying process is finely crushed, thereby preventing agglomeration of the sludge as well as stirring and drying in the drying process.

발명은 다단계적으로 연속 배치되는 동체들(20)을 이용하여 폐기물의 건조를 연속적이고 반복적으로 이루게 한 것이다.The invention provides for the continuous and repeated drying of waste by means of the bodies 20, which are arranged in multiple stages.

그리고 제2건조기(302)로부터 건조과정을 거치어 배출되는 처리 슬러지를 받아내어 한 쌍의 버킷 엘리베이터들(501,502)을 이용하여 탱크(400)에 저장시킨다.The treated sludge is discharged from the second dryer 302 through a drying process and stored in the tank 400 using the pair of bucket elevators 501 and 502.

그리고 탱크(400)에 저장된 처리 슬러지를 공급받아 펠릿 성형기(600)을 이용하여 펠릿형태로 성형시키게 된다.The treated sludge stored in the tank 400 is supplied to the pellet molding machine 600 to form pellets.

이상에서와같이 본 발명의 일 실시 예에 관해 설명하였으나, 본 발명은 이에 국한되지 않고 청구범위에 기재된 범위 내에서 변경이 가능 할 것이다.While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: 호퍼
200: 고속믹서
301: 제1 건조기
302: 제2 건조기
400: 탱크
501,502: 버킷 엘리베이터
503: 반송 버킷 엘리베이터
600: 펠릿 성형기100: Hopper
200: high speed mixer
301: 1st dryer
302: Second dryer
400: tank
501, 502: Bucket elevator
503: Carrying bucket elevator
600: pellet molding machine

Claims (2)

하수나 폐수의 처리과정에서 생성되는 오니 또는 유기성 슬러지들을 재활용하여 자원화시킬 수 있도록 한 하ㆍ폐수 슬러지의 처리시스템으로서,
처리할 슬러지들을 공급시키는 호퍼;
상기 호퍼로부터 공급되는 미처리 슬러지가 압축작용을 이용하여 이송되게 하는 압송관로;
상기 압송관로를 통해 공급되는 미처리 슬러지와 회수되는 처리 슬러지를 공급받아 혼합 슬러지화 하는 고속믹서;
상기 고속믹서로부터 상기 혼합 슬러지를 받아내어 양측으로 분배이송시키는 분기이송관로들;
상기 고속믹서의 양측으로 병설되고, 상기 분기이송관로들 각기로부터 상기 혼합슬러지를 공급받아 리본형 스크루가 구비되는 다관형의 열교환기 회전을 이용하여 이송과 건조를 이루게 하는 다단계의 동체들이 지그재그식으로 연결되며, 연결관로로 연이어지는 한 쌍의 제1 및 제2건조기들;
상기 제2건조기들로부터 배출되는 처리 슬러지를 받아내어 상부로 이송시키는 버킷 엘리베이터들;
상기 버킷 엘리베이터들로부터 반송된 상기 처리 슬러지를 받아 저장하는 탱크;
상기 탱크로부터 상기 처리 슬러지를 받아내어 상기 고속믹서 측으로 회송시키는 반송 버킷 엘리베이터; 및
상기 탱크의 하부에 연이어 상기 탱크로부터 상기 처리 슬러지를 공급받아 펠릿형태로 성형시키는 펠릿 성형기를 포함하여서 된 것을 특징으로 하는 하ㆍ폐수 슬러지의 처리시스템.The present invention relates to a treatment system for sewage or wastewater sludge which is capable of recycling sludge or organic sludge produced during the treatment of wastewater or wastewater,
A hopper for feeding sludges to be treated;
An untreated sludge supplied from the hopper is conveyed by using a compression action;
A high-speed mixer for receiving the untreated sludge supplied through the pressure feeding pipe and the recovered treated sludge into a mixed sludge;
Branch conveying conduits for receiving the mixed sludge from the high-speed mixer and distributing the mixed sludge to both sides;
The multi-stage moving bodies are provided on both sides of the high-speed mixer, and the multi-stage moving bodies, which receive the mixed sludge from each of the branch conveying ducts and perform conveyance and drying using a multitubular heat exchanger rotation provided with ribbon- A pair of first and second dryers connected to the connecting channel;
Bucket elevators for taking in the treated sludge discharged from the second dryers and transferring the sludge to the upper part;
A tank for receiving and storing the treated sludge conveyed from the bucket elevators;
A conveying bucket elevator for receiving the treated sludge from the tank and returning the treated sludge to the high-speed mixer side; And
And a pellet molding machine for continuously supplying the treated sludge from the tank to the lower part of the tank to form the pellet in the form of pellets. 제1항에 있어서,
상기 건조기는 기대와, 상기 기대를 이용하여 상하 측에서 적어도 2조 이상 병렬로 배치되고 전ㆍ후방에서 상기 혼합 슬러지의 공급과 이송을 위한 입ㆍ출구가 인접 측과 교호적으로 구비되어 상기 혼합 슬러지를 지그재그식으로 이송되게 하는 원통형의 동체들과, 상기 각 동체의 내 길이방향에서 회전되게 설치되고 한 쌍의 헤더들 사이에서 인접 측과 간격이 유지되며 둘레의 길이방향에서 패들이 등 간격으로 가로 배치되는 리본형 스크루가 구비되는 다수의 분기관들로 이룬 다관형의 열교환기와, 상기 동체들 각각에 상기 동체에서의 건조과정에서 발생하는 습기 배출을 위한 배기매니폴드 및 상기 동체들 각기의 입구 또는 출구 사이에서 덩어리 형태로 공급 및 이송되는 상기 혼합 슬러지를 잘게 부스러뜨리는 파쇄유닛으로 구성된 하ㆍ폐수 슬러지의 처리시스템.The method according to claim 1,
The dryer includes a base and at least two pairs of upper and lower tanks arranged in parallel using the base, and an inlet and an outlet for supplying and conveying the mixed sludge are provided alternately with the adjacent sides in the front and rear, And a pair of spaced-apart spacers disposed between adjacent ones of the pair of headers, wherein the paddles are spaced at equal intervals in the circumferential direction of the pair of spacers, A tubular heat exchanger formed of a plurality of branch pipes provided with a ribbon-shaped screw to be disposed; an exhaust manifold for discharging moisture generated in the drying process in each of the moving bodies and an inlet or an outlet of each of the moving bodies; And a crushing unit for finely crushing the mixed sludge supplied and conveyed in a lump form between the outlets, Fingers processing system.
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Publication number Priority date Publication date Assignee Title
KR101932677B1 (en) * 2018-05-18 2018-12-26 인워터솔루션 주식회사 A continuous dryer for sludge

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Publication number Priority date Publication date Assignee Title
KR100914993B1 (en) 2009-01-12 2009-09-02 문홍란 Refuse derived fuel plant and it's method
KR101176427B1 (en) 2011-10-18 2012-08-30 주식회사 포스코건설 Apparatus for manufacturing sludge refuse derived fuel using stationary dryer and method thereof

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Publication number Priority date Publication date Assignee Title
KR100914993B1 (en) 2009-01-12 2009-09-02 문홍란 Refuse derived fuel plant and it's method
KR101176427B1 (en) 2011-10-18 2012-08-30 주식회사 포스코건설 Apparatus for manufacturing sludge refuse derived fuel using stationary dryer and method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101932677B1 (en) * 2018-05-18 2018-12-26 인워터솔루션 주식회사 A continuous dryer for sludge

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