WO2012002744A2 - Sludge-drying apparatus - Google Patents

Sludge-drying apparatus Download PDF

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Publication number
WO2012002744A2
WO2012002744A2 PCT/KR2011/004792 KR2011004792W WO2012002744A2 WO 2012002744 A2 WO2012002744 A2 WO 2012002744A2 KR 2011004792 W KR2011004792 W KR 2011004792W WO 2012002744 A2 WO2012002744 A2 WO 2012002744A2
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WO
WIPO (PCT)
Prior art keywords
sludge
combustion gas
disk plate
drying apparatus
case
Prior art date
Application number
PCT/KR2011/004792
Other languages
French (fr)
Korean (ko)
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WO2012002744A3 (en
Inventor
원남희
Original Assignee
비노텍 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 비노텍 주식회사 filed Critical 비노텍 주식회사
Priority to CN201180032437.8A priority Critical patent/CN103003205B/en
Publication of WO2012002744A2 publication Critical patent/WO2012002744A2/en
Publication of WO2012002744A3 publication Critical patent/WO2012002744A3/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/001—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors
    • F26B17/005—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors with rotating floors, e.g. around a vertical axis, which may have scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/008—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material being a slurry or paste applied onto moving elements, e.g. chains, plates, for drying thereon, and subsequently removed therefrom
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/20—Sludge processing

Definitions

  • the present invention relates to a sludge drying apparatus, and more particularly, to a sludge drying apparatus capable of completely drying the viscous sludge as a whole by maximizing heat transfer efficiency in the process of transferring the sludge aggregated in a bulk form to a lower portion.
  • sludge is a secondary pollutant that occurs when removing particulates, colloids or dissolved pollutants contained in various wastes and wastes, and causes problems such as odors and pathogens. It is known to cause additional environmental pollution.
  • FIG. 1 is a view showing a conventional sludge drying apparatus.
  • the conventional sludge drying apparatus 1 includes a cylindrical drum 2 installed obliquely using a support 6 and a drive motor 5 installed inside the cylindrical drum 2. And a burner (not shown) installed at the top, bottom, or both ends of the rotating screw 3 and the cylindrical drum 2 to generate a high temperature heat (H).
  • reference numeral “4” in FIG. 1 denotes a refractory applied to the inner circumferential surface of the cylindrical drum 2.
  • the conventional sludge drying apparatus 1 configured as described above has no passage for the flow of combustion gas between the cylindrical drum 2 and the screw 3 or the screw 3 itself. There was a problem that the drying of the sludge is not made well.
  • the sludge has its own viscosity and is agglomerated in a bulk form.
  • the conventional sludge drying apparatus 1 does not have any means for thinly spreading the bulk sludge, so that only the surface is dried. It occurred frequently, and thus there was a problem that the sludge extended to the screw (3) or the cylindrical drum (2) to cause a failure.
  • the present invention has been made to solve the above-mentioned problems, by smoothly adjusting the flow of the combustion gas in the case to maximize the heat transfer efficiency in a state in which the viscous sludge injected in bulk form to spread the thin sludge to transfer the moisture contained in the sludge It is an object to provide a sludge drying apparatus that can be completely removed.
  • a sludge inlet and a combustion gas inlet are formed at an upper portion thereof, a sludge discharge outlet and a combustion gas inlet are formed at a lower portion thereof, a rotary shaft installed at a central axis of the case, and a drive motor for rotating the rotary shaft.
  • a plurality of scrapers installed in the rotary shaft in multiple stages, the disk plates having combustion gas flow holes formed on surfaces thereof, and a plurality of scrapers extending from an inner side wall of the case to be spaced apart from the top of the disk plate.
  • the inner wall is provided with a sludge drying apparatus, characterized in that the guide plate which is inclined downward and spaced apart from the top of the disk plate is provided.
  • the size of the flue gas flow hole is preferably increased from the lower disk plate to the upper disk plate of the disk plate.
  • the combustion gas flow hole is preferably composed of a straight combustion gas flow hole formed in the edge portion of the disk plate, and a circular combustion gas flow hole formed in the center of the disk plate.
  • the straight combustion gas flow hole is preferably formed only in the upper disk plate.
  • At least one sludge discharge hole is formed along the radial direction in the upper disc plate.
  • the scraper is preferably installed inclined in a direction opposite to the rotation direction of the disk plate.
  • the inclined direction of the scraper is preferably opposite to each end of the disk plate.
  • the lower portion of the scraper is preferably provided with a brush.
  • the combustion gas flow hole and the sludge discharge hole of the guide plate and the disc plate are smoothly supplied and discharged to maximize the heat transfer area, and the scraper is processed to a size suitable for drying by using a scraper.
  • the effect of completely drying the sludge without any phenomenon can be obtained.
  • FIG. 1 is a view showing a conventional sludge drying apparatus
  • FIG. 2 is an installation diagram of the sludge drying apparatus according to a preferred embodiment of the present invention
  • FIG. 3 is a plan view of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • Figure 4 is a bottom view of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • FIG. 5 is a vertical sectional view of the sludge drying apparatus according to the preferred embodiment of the present invention.
  • FIG. 6 is a view showing a disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention
  • FIG. 7 is a view showing the position of forming the sludge discharge hole of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • FIG. 8 is a view showing the installation state of the scraper of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • FIG. 9 is a view showing a state in which a scraper is reversely installed on the disk plate of the sludge drying apparatus according to the preferred embodiment of the present invention.
  • FIG. 10 is a view showing the lower disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • FIG. 11 is a view showing a brush installed in the scraper of the sludge drying apparatus according to an embodiment of the present invention
  • FIG. 12 is a schematic diagram illustrating a sludge drying system according to a preferred embodiment of the present invention.
  • FIG. 2 is an installation of the sludge drying apparatus according to a preferred embodiment of the present invention
  • Figure 3 is a plan view of a sludge drying apparatus according to a preferred embodiment of the present invention
  • Figure 4 is a sludge drying apparatus according to a preferred embodiment of the present invention
  • 5 is a vertical sectional view of the sludge drying apparatus according to the preferred embodiment of the present invention.
  • the sludge drying apparatus 100 includes a case 110, a rotating shaft 120, a drive motor 130, a disc plate 140, and It is configured to include a guide plate 160.
  • the case 110 is a configuration for installation of the remaining configuration, the interior is made of a hollow cylindrical structure.
  • a sludge inlet 111a and a combustion gas outlet 112b are formed at an upper portion of the case 110, and a sludge outlet 111b and a combustion gas inlet 112a are formed at a lower portion of the case 110. That is, in the present invention, the sludge is supplied from the top to the bottom, and the combustion gas is supplied from the bottom to the top.
  • the inner circumferential surface of the case 110 is preferably refractory is applied to prevent the external discharge of the heat of combustion.
  • the rotation shaft 120 is configured for the rotation of the disk plate 140, assembled with a pipe 121, the support plate 122, the reinforcing rib 123 to the central axis of the case 110 It is rotatably installed.
  • the installation method of the rotary shaft 120 is a known matter, a detailed description thereof will be omitted.
  • the drive motor 130 is configured for rotation of the rotary shaft 120, and is coupled by the rotary shaft 120 and the fan belt (not shown) or gear (not shown) to drive the driving force.
  • the type and number of the driving motor 130 are not particularly limited, and various types of known driving motors may be installed and used.
  • the disk plate 140 is configured for the flow of combustion gas and sludge, and is manufactured in a disc shape so as to be rotatable in the case 110 and installed in the rotary shaft 120 in multiple stages.
  • a plurality of combustion gas flow holes are formed on the surface of the disc plate 140 as passages of combustion heat or sludge, which will be described in detail later.
  • the guide plate 160 is a characteristic configuration of the present invention for guiding the flow of the combustion gas in a predetermined direction, extending from the inner wall of the case 110, respectively on top of the disk plate 140 Spaced apart.
  • the combustion gas transferred from the lower portion may be prevented from rising immediately through the space between the case 110 and the disc plate 140. That is, since the combustion gas is once transferred to the center of the disk plate 140 by the guide plate 160 to dry the sludge and then transferred to the upper disk plate, the sludge at each stage is completely removed without unnecessary heat loss. Can be dried. In other words, the heat transfer efficiency is maximized by guiding the combustion heat supplied from the lower part to the upper part after passing through the disc plate of each stage without passing directly to the upper part.
  • the guide plate 160 is preferably installed to be inclined downward. Because, not only combustion gas but also sludge fall into the space between the case 110 and the disk plate 140, when the guide plate 160 is installed horizontally, the sludge is accumulated to block the passage of the combustion gas. Because it can. Therefore, in the present invention, the guide plate 160 is installed to be inclined downward so that sludges do not accumulate and fall to the bottom disc plate.
  • the present invention further includes a configuration for smoothly transferring the sludge and the combustion gas supplied from the reverse direction to each other and actively contacting it.
  • a configuration for smoothly transferring the sludge and the combustion gas supplied from the reverse direction to each other and actively contacting it will be described in detail with reference to the accompanying drawings.
  • FIG. 6 is a view showing a disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • a combustion gas flow hole 142 and a sludge discharge hole 141 may be formed in the disc plate 140.
  • the combustion gas flow hole 142 is formed in a plurality of predetermined shapes and intervals according to the size, amount, etc. of the sludge as a configuration that acts as a passage of the combustion gas or sludge.
  • the size of the combustion gas flow hole 142 can be appropriately adjusted according to the sludge as in the form, the interval, it is preferable that the smaller from the bottom to the top.
  • the size of the combustion gas flow hole 142 is made larger at the top to compensate for the reduced pressure so that the combustion gas is continuously raised.
  • the sludge supplied from the upper side as opposed to the above-described flow of the combustion gas is gradually reduced in volume as it is transferred to the lower side in the state of being aggregated by the initial viscosity, so that the sludge is smoothly transferred to the lower portion of the combustion gas flow hole (
  • the size of 142 is advantageously larger at the top.
  • the combustion gas flow hole 142 may be formed in a predetermined shape as described above, but preferably comprises a mixture of a linear combustion gas flow hole 142a and a circular combustion gas flow hole 142b.
  • the straight combustion gas flow hole 142a is radially formed along the radial direction of the disc plate 140
  • the circular combustion gas flow hole 142b is a central portion of the disc plate 140. Is formed in a circle along the circumferential direction.
  • the combustion gas flow hole 142 is configured in two different forms as described above to facilitate the discharge of the sludge and to prevent thermal deformation of the disc plate 140.
  • the combustion gas flow hole 142 is formed by mixing a circular shape and a straight shape.
  • the straight combustion gas flow hole 142a is preferably formed only in the upper disk plate, more specifically, the upper 1/3 area of the case 110.
  • the combustion gas flow hole 142 when the combustion gas flow hole 142 is mixed as described above, it is possible to prevent thermal deformation of the disk plate 140. That is, since the temperature of the combustion gas for drying is very high, when the sludge drying apparatus 100 is continuously operated several times, the disk plate 140 may be deformed or expanded and deformed. However, when the linear combustion gas flow hole 142a and the circular combustion gas flow hole 142b are formed in the disk plate 140 as in the present invention, the combustion heat applied to the disk plate 140 is the linear combustion. Deformation can be prevented because it is offset by the contraction or expansion of the gas flow hole 142a and / or the circular combustion gas flow hole 142b.
  • the present invention has been described for the additional configuration that can improve the heat transfer efficiency.
  • the present invention can be further provided with a configuration for smooth transfer of sludge together with heat transfer, hereinafter will be described in detail with reference to the drawings.
  • FIG. 7 is a view showing the position of forming the sludge discharge hole of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • the sludge discharge hole 141 may be additionally formed in the disc plate 140 in addition to the combustion gas flow hole 142.
  • the sludge discharge hole 141 is formed in a straight line in the radial direction on the disk plate 140, so as to have a constant azimuth with the adjacent sludge discharge hole.
  • the sludge discharge hole 141 has an azimuth angle of 90 degrees and shows four.
  • the arrangement form of the sludge discharge hole 141 is not limited thereto, and it should be understood that the azimuth and the number may be properly adjusted according to the size and amount of the sludge.
  • the sludge discharge hole 141 When the sludge discharge hole 141 is separately provided in the disc plate 140 as described above, a large volume of sludge may be easily transferred to a lower end of the sludge so that the flow of combustion gas may be smoother. In this case, when the sludge discharge hole at the top and the bottom is formed at the same position, the sludge discharge hole 141a at the bottom should not overlap with the sludge discharge hole 141 at the top because the sludge cannot be dried right up to the bottom end. .
  • FIG 8 is a view showing the installation state of the scraper of the sludge drying apparatus according to a preferred embodiment of the present invention
  • Figure 9 is a view showing a state in which the scraper is reversely installed on the disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • the scraper 150 extending from the inner wall of the case 110 may be spaced apart from the upper portion of the disk plate 140.
  • the scraper 150 has a structure for spreading thin sludge, which is agglomerated in a bulk form, with a viscosity on the disk plate 140, suitable for drying, between the scraper 150 and the disk plate 140. If the gap is too large, the sludge will pass through as it is, and if it is too small, friction will occur and wear. Therefore, it is preferable to adjust according to the size and amount of the sludge.
  • the scraper 150 is preferably evenly disposed in the entire area from the edge portion of the disk plate 140 to the center portion with a predetermined azimuth angle with the adjacent scraper so as to completely grind the sludge.
  • three scrapers 150 are provided to have an azimuth angle of 120 degrees and are sequentially disposed at an edge portion, a middle portion, and a central portion of the disc plate 140.
  • the arrangement of the scraper 150 is not limited thereto, and it should be understood that the azimuth and the number can be appropriately adjusted according to the size and amount of the sludge.
  • the scraper 150 is preferably installed to be inclined in a direction opposite to the rotation direction of the disk plate 140 around the rotation shaft 120. That is, as described above, when the installation angle of the scraper 150 is adjusted, the crushed sludge is guided by the scraper 150 to move to the center of the disk plate 140, thereby increasing the residence time. Therefore, drying can be made more reliably.
  • the sludge guided in the center direction is discharged to the lower end through the combustion gas flow hole 142 or the sludge discharge hole 141, so that the discharged sludge stays at the lower end for a predetermined time to dry in FIG. 9.
  • the installation direction of the scraper 150 at the lower end to transfer the sludge dropped to the center of the lower disk plate to the rim to ensure the maximum residence time.
  • the sludge can be made more active by continuously exposing to the heat of combustion while reciprocating the center and the rim each time the stage of the disc plate is changed.
  • FIG. 10 is a view showing the lower disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention
  • Figure 11 is a view showing a brush installed in the scraper of the sludge drying apparatus according to a preferred embodiment of the present invention.
  • the brush 151 may be installed under the scraper 150.
  • the scraper 150 is preferably installed to be inclined in the rotational direction of the disk plate 140 when viewed from the side. That is, when the installation angle of the scraper 150 is adjusted, the brush 151 may be in close contact with the disk plate 140, and thus the circular combustion gas flow hole 142b may be rotated when the disk plate 140 is rotated. The deeper part of) can be inserted to remove sludge completely.
  • combustion gas and sludge are supplied into the case 110 through the combustion gas inlet 112a and the sludge inlet 111a.
  • the disk plate 140 is rotated by operating the drive motor 130 simultaneously with the supply of the combustion gas and the sludge, the sludge is unfolded thinly by the scraper 150 and the combustion gas flow hole 142. Through the sludge discharge hole 141 or the guide plate 160, it is dropped in sequence to the lower disk plate.
  • the combustion gas also rises through the above-described passages.
  • the lower portion of the disk plate 140 directly dries the sludge accumulated in the linear combustion gas flow hole 142a and drops it to the lower portion.
  • the sludge is dried while moving to the center through the guide plate 160, and then rises to the upper disk plate through the guide plate 160 again.
  • the sludge remaining on the disk plate 140 is continuously dried while being transported to the center by the scraper 150, dropped to the bottom, and then reciprocated to the rim.
  • FIG. 12 is a schematic diagram illustrating a sludge drying system according to a preferred embodiment of the present invention.
  • the sludge drying system 200 includes a sludge storage tank 210, a sludge drying apparatus 220, a combustion gas supply means 230, and a blower ( 240 and the control panel 250 is configured.
  • the sludge storage tank 210 is configured to store the sludge to be dried, and a screw conveyor 211 for transporting the sludge in one direction while rotating the sludge is installed.
  • the sludge drying apparatus 220 is configured to discharge the sludge after receiving the sludge by the pump 212 installed in the sludge storage tank 210 and discharge it to the outside. It is characterized in that the sludge supplied from the top to the bottom to be smoothly supplied to completely dry. In this case, it is preferable to use the sludge drying apparatus according to the present invention as the sludge drying apparatus 220.
  • the combustion gas supply means 230 is configured to supply combustion gas to the sludge drying apparatus 220, and is connected to each other by the sludge drying apparatus 220 and a pipe 231, and the piping ( The supply amount of the combustion gas is adjusted by using the damper 232 installed at 231.
  • the combustion gas supply means 230 preferably uses incinerators 230a and 230b. That is, the waste heat gas generated during operation of the incinerators 230a and 230b is supplied to the sludge drying apparatus 220 without being discharged to the outside and recycled as a heat source for removing water from the sludge according to the use of a conventional burner. To reduce installation, maintenance and repair costs.
  • the sludge drying apparatus 220 may be appropriately added or subtracted according to the scale of the incineration facility in which the sludge drying apparatus 220 is installed.
  • the blower 240 is configured to discharge the combustion gas discharged after drying the sludge in the sludge drying apparatus 220 to the outside, and is connected to the sludge drying apparatus 220 by a pipe 241. do.
  • the combustion gas may be supplied to another incinerator without being discharged to the outside and recycled again.
  • control panel 250 may operate in each configuration, for example, the rotational speed of the screw conveyor 211, the on / off of the pump 212, the opening and closing of the damper 232, and the like. It is configured to control the drying temperature and speed according to the type, amount, moisture content of the sludge, and is composed of known parts such as a control part, a display part, a switch part.
  • the sludge drying system 200 may further include a pelletizer (not shown) in addition to the above-described configuration.
  • the pelletizer is installed in the lower portion of the sludge supply apparatus 220 to process the sludge discharged in a dried state into a pellet form.
  • the sludge processed in the form of pellets can be recycled as a heat source of various heating devices because the moisture is completely removed and easily burned.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention relates to a sludge-drying apparatus, comprising: a case, the upper portion of which has a sludge inlet and a combustion gas outlet, and the lower portion of which has a sludge outlet and a combustion gas inlet; a rotary shaft arranged at the central axis of the case; a driving motor for rotating the rotary shaft; disk plates arranged into multiple stages on the rotary shaft, wherein each of the disk plates has a combustion-gas flow hole; and a plurality of scrapers extending from the inner wall of the case and arranged over the respective disk plates. Guide plates are installed on the inner wall of the case such that the guide plates are inclined downward and arranged over the respective disk plates, thereby enabling combustion gas to be smoothly supplied to and discharged from the inside of the case, and thus completing the drying of sludge. The scrapers spread the sludge into a thin shape and transfer the sludge downward, thereby preventing the apparatus from being clogged.

Description

오니 건조 장치Sludge drying device
본 발명은 오니 건조 장치에 관한 것으로, 특히, 벌크 형태로 뭉쳐져 있는 오니를 얇게 펼치면서 하부로 이송시키는 과정에서 열전달 효율을 극대화하여 점성의 오니를 전체적으로 완전하게 건조시킬 수 있는 오니 건조 장치에 관한 것이다.The present invention relates to a sludge drying apparatus, and more particularly, to a sludge drying apparatus capable of completely drying the viscous sludge as a whole by maximizing heat transfer efficiency in the process of transferring the sludge aggregated in a bulk form to a lower portion.
최근 지속적인 산업 발전에 따른 부산물로 각종 쓰레기와 폐기물이 다량 발생하고 있으며, 이에 따라 이러한 부산물의 처리에 대한 관심도 점차 높아지고 있다.Recently, various wastes and wastes are generated as by-products of continuous industrial development, and accordingly, interest in the treatment of such by-products is gradually increasing.
현재 각종 산업 현장, 음식점, 가정 등에서 발생하는 쓰레기와 폐기물은 다양한 방식으로 처리되고 있으나, 대부분 오니를 발생시켜 문제되고 있다. 여기서, 오니는 각종 쓰레기와 폐기물에 포함된 입자상, 콜로이드 또는 용존상의 오염물질 제거시 발생하는 2차 오염물질로서 악취, 병원균 등의 문제를 야기하며, 유기물질을 다량 함유하고 있어 제대로 처리되지 않을 경우 부가적인 환경오염을 일으키는 것으로 알려져 있다.Currently, garbage and wastes generated at various industrial sites, restaurants, homes, etc. are treated in various ways, but most of them are problematic by generating sludge. Here, sludge is a secondary pollutant that occurs when removing particulates, colloids or dissolved pollutants contained in various wastes and wastes, and causes problems such as odors and pathogens. It is known to cause additional environmental pollution.
이러한 오니의 처리와 관련하여, 국내에서는 직매립이 금지되고 국제협약에 의해 해양 배출도 엄격하게 제한되고 있기 때문에 오니를 효과적으로 감량할 수 있는 방안에 대한 연구가 절실한 상황이다. 이에 종래부터 오니에 포함된 수분을 제거하여 재활용하는 방안이 제시되어왔다.Regarding the treatment of sludge, research on how to effectively reduce sludge is urgent since direct landfilling is prohibited in Korea and marine discharge is strictly restricted by international agreements. Accordingly, a method of removing and recycling moisture included in the sludge has been proposed.
도 1은 종래의 오니 건조 장치를 도시한 도면이다.1 is a view showing a conventional sludge drying apparatus.
도 1에 도시된 바와 같이, 종래의 오니 건조 장치(1)는 지지대(6)를 이용하여 경사지게 설치되는 원통형 드럼(2)과, 상기 원통형 드럼(2)의 내부에 설치되어 구동 모터(5)에 의해 회전하는 스크류(3) 및 상기 원통형 드럼(2)의 상단, 하단 또는 양단에 설치되어 고온의 열(H)을 발생시키는 버너(도면 미도시)를 포함하여 구성된다. 참고적으로, 도 1에서 미설명 부호 “4”는 상기 원통형 드럼(2)의 내주면에 도포되는 내화물을 나타낸다.As shown in FIG. 1, the conventional sludge drying apparatus 1 includes a cylindrical drum 2 installed obliquely using a support 6 and a drive motor 5 installed inside the cylindrical drum 2. And a burner (not shown) installed at the top, bottom, or both ends of the rotating screw 3 and the cylindrical drum 2 to generate a high temperature heat (H). For reference, reference numeral “4” in FIG. 1 denotes a refractory applied to the inner circumferential surface of the cylindrical drum 2.
그러나 상술한 바와 같이 구성되는 종래의 오니 건조 장치(1)는 상기 원통형 드럼(2)과 상기 스크류(3)의 사이 또는 상기 스크류(3) 자체에 연소가스의 흐름을 위한 통로가 전혀 형성되어 있지 않아 오니의 건조가 잘 이루어지지 않는 문제점이 있었다.However, the conventional sludge drying apparatus 1 configured as described above has no passage for the flow of combustion gas between the cylindrical drum 2 and the screw 3 or the screw 3 itself. There was a problem that the drying of the sludge is not made well.
또한, 오니는 자체적으로 점성을 가져 벌크(bulk) 형태로 뭉쳐져 있는데, 종래의 오니 건조 장치(1)에는 이러한 벌크 형태의 오니를 얇게 펼칠 수 있는 수단이 전혀 구비되어 있지 않아 표면만 건조되는 경우가 빈번하게 발생하였고, 이에 따라 오니가 상기 스크류(3) 또는 상기 원통형 드럼(2)에 늘러 붙어 고장을 일으키는 문제점이 있었다.In addition, the sludge has its own viscosity and is agglomerated in a bulk form. However, the conventional sludge drying apparatus 1 does not have any means for thinly spreading the bulk sludge, so that only the surface is dried. It occurred frequently, and thus there was a problem that the sludge extended to the screw (3) or the cylindrical drum (2) to cause a failure.
본 발명은 전술한 문제점을 해결하기 위해 안출된 것으로, 케이스 내 연소가스의 흐름을 원활하게 조절하여 열전달 효율을 극대화한 상태에서 벌크 형태로 투입된 점성의 오니를 얇게 펼쳐 이송시킴으로써 오니에 포함된 수분을 완전하게 제거할 수 있는 오니 건조 장치를 제공하는 데 목적이 있다.The present invention has been made to solve the above-mentioned problems, by smoothly adjusting the flow of the combustion gas in the case to maximize the heat transfer efficiency in a state in which the viscous sludge injected in bulk form to spread the thin sludge to transfer the moisture contained in the sludge It is an object to provide a sludge drying apparatus that can be completely removed.
전술한 기술적 과제를 해결하기 위한 수단으로서,As a means for solving the above technical problem,
본 발명은, 상부에는 오니 유입구 및 연소가스 배출구가 형성되고, 하부에는 오니 배출구 및 연소가스 유입구가 형성되는 케이스와, 상기 케이스의 중심축에 설치되는 회전 샤프트와, 상기 회전 샤프트를 회전시키는 구동 모터와, 상기 회전 샤프트에 다단 설치되며, 표면에 연소가스 흐름공이 형성되는 디스크 플레이트 및 상기 케이스의 내측벽으로부터 각각 연장되어 상기 디스크 플레이트의 상부에 이격 설치되는 다수의 스크레이퍼;를 포함하되, 상기 케이스의 내측벽에는 하방으로 경사져 상기 디스크 플레이트의 상부에 이격 설치되는 가이드판이 구비되는 것을 특징으로 하는 오니 건조 장치를 제공한다.According to the present invention, a sludge inlet and a combustion gas inlet are formed at an upper portion thereof, a sludge discharge outlet and a combustion gas inlet are formed at a lower portion thereof, a rotary shaft installed at a central axis of the case, and a drive motor for rotating the rotary shaft. And a plurality of scrapers installed in the rotary shaft in multiple stages, the disk plates having combustion gas flow holes formed on surfaces thereof, and a plurality of scrapers extending from an inner side wall of the case to be spaced apart from the top of the disk plate. The inner wall is provided with a sludge drying apparatus, characterized in that the guide plate which is inclined downward and spaced apart from the top of the disk plate is provided.
이 경우, 상기 연소가스 흐름공의 크기는 상기 디스크 플레이트 중 하부 디스크 플레이트에서 상부 디스크 플레이트로 갈수록 커지는 것이 바람직하다.In this case, the size of the flue gas flow hole is preferably increased from the lower disk plate to the upper disk plate of the disk plate.
이 경우, 상기 연소가스 흐름공은 상기 디스크 플레이트의 테두리부에 형성되는 직선형 연소가스 흐름공과, 상기 디스크 플레이트의 중심부에 형성되는 원형 연소가스 흐름공으로 구성되는 것이 바람직하다.In this case, the combustion gas flow hole is preferably composed of a straight combustion gas flow hole formed in the edge portion of the disk plate, and a circular combustion gas flow hole formed in the center of the disk plate.
이 경우, 상기 직선형 연소가스 흐름공은 상기 상부 디스크 플레이트에만 형성되는 것이 바람직하다.In this case, the straight combustion gas flow hole is preferably formed only in the upper disk plate.
이 경우, 상기 상부 디스크 플레이트에는 적어도 하나 이상의 오니 배출공이 지름 방향을 따라 형성되는 것이 바람직하다.In this case, it is preferable that at least one sludge discharge hole is formed along the radial direction in the upper disc plate.
이 경우, 상기 스크레이퍼는 상기 디스크 플레이트의 회전 방향과 반대 방향으로 경사져 설치되는 것이 바람직하다.In this case, the scraper is preferably installed inclined in a direction opposite to the rotation direction of the disk plate.
이 경우, 상기 스크레이퍼의 경사 방향은 상기 디스크 플레이트의 각 단마다 서로 반대인 것이 바람직하다.In this case, the inclined direction of the scraper is preferably opposite to each end of the disk plate.
이 경우, 상기 스크레이퍼의 하부에는 브러쉬가 구비되는 것이 바람직하다.In this case, the lower portion of the scraper is preferably provided with a brush.
본 발명에 따르면, 가이드판과 디스크 플레이트의 연소가스 흐름공, 오니 배출공을 통해 연소가스를 원활하게 공급 및 배출시켜 전열 면적을 극대화하고, 스크레이퍼를 이용하여 오니를 건조에 적합한 크기로 가공함으로써 폐색 현상 없이 오니를 완전하게 건조시킬 수 있는 효과를 얻을 수 있다.According to the present invention, the combustion gas flow hole and the sludge discharge hole of the guide plate and the disc plate are smoothly supplied and discharged to maximize the heat transfer area, and the scraper is processed to a size suitable for drying by using a scraper. The effect of completely drying the sludge without any phenomenon can be obtained.
도 1은 종래의 오니 건조 장치를 도시한 도면,1 is a view showing a conventional sludge drying apparatus,
도 2는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 설치도,2 is an installation diagram of the sludge drying apparatus according to a preferred embodiment of the present invention,
도 3은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 평면도,3 is a plan view of the sludge drying apparatus according to a preferred embodiment of the present invention,
도 4는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 저면도,Figure 4 is a bottom view of the sludge drying apparatus according to a preferred embodiment of the present invention,
도 5는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 수직 단면도,5 is a vertical sectional view of the sludge drying apparatus according to the preferred embodiment of the present invention,
도 6은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 디스크 플레이트를 도시한 도면,6 is a view showing a disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention,
도 7은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 오니 배출공의 형성 위치를 도시한 도면,7 is a view showing the position of forming the sludge discharge hole of the sludge drying apparatus according to a preferred embodiment of the present invention,
도 8은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 스크레이퍼의 설치 상태를 도시한 도면,8 is a view showing the installation state of the scraper of the sludge drying apparatus according to a preferred embodiment of the present invention,
도 9는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 디스크 플레이트에 스크레이퍼가 반대로 설치된 모습을 도시한 도면,9 is a view showing a state in which a scraper is reversely installed on the disk plate of the sludge drying apparatus according to the preferred embodiment of the present invention;
도 10은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 하부 디스크 플레이트를 도시한 도면,10 is a view showing the lower disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention,
도 11은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 스크레이퍼에 브러쉬가 설치된 모습을 도시한 도면,11 is a view showing a brush installed in the scraper of the sludge drying apparatus according to an embodiment of the present invention,
도 12는 본 발명의 바람직한 실시예에 따른 오니 건조 시스템을 도시한 개략도.12 is a schematic diagram illustrating a sludge drying system according to a preferred embodiment of the present invention.
이하에서는, 첨부한 도면을 참조하여 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있도록 본 발명의 실시예를 상세히 설명한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며, 여기에서 설명하는 실시예에 한정되지 않는다. 그리고 도면에서 본 발명을 명확하게 설명하기 위하여 설명과 관계없는 부분은 생략하였으며, 명세서 전체를 통하여 유사한 부분에 대해서는 유사한 도면 부호를 붙여 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.
도 2는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 설치도, 도 3은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 평면도, 도 4는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 저면도, 도 5는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 수직 단면도이다.2 is an installation of the sludge drying apparatus according to a preferred embodiment of the present invention, Figure 3 is a plan view of a sludge drying apparatus according to a preferred embodiment of the present invention, Figure 4 is a sludge drying apparatus according to a preferred embodiment of the present invention 5 is a vertical sectional view of the sludge drying apparatus according to the preferred embodiment of the present invention.
도 2 내지 도 5를 참고하면, 본 발명의 바람직한 실시예에 따른 오니 건조 장치(100)는 케이스(110)와, 회전 샤프트(120)와, 구동 모터(130)와, 디스크 플레이트(140) 및 가이드판(160)을 포함하여 구성된다.2 to 5, the sludge drying apparatus 100 according to the preferred embodiment of the present invention includes a case 110, a rotating shaft 120, a drive motor 130, a disc plate 140, and It is configured to include a guide plate 160.
먼저, 상기 케이스(110)는 나머지 구성의 설치를 위한 구성으로, 내부가 빈 원통형 구조로 이루어진다. 이 경우, 상기 케이스(110)의 상부에는 오니 유입구(111a) 및 연소가스 배출구(112b)가 형성되고, 하부에는 오니 배출구(111b) 및 연소가스 유입구(112a)가 형성된다. 즉, 본 발명에서 오니는 상부에서 하부로 공급되고, 연소가스는 하부에서 상부로 공급된다. 한편, 상기 케이스(110)의 내주면에는 내화물이 도포되어 연소열의 외부 방출을 방지하는 것이 바람직하다.First, the case 110 is a configuration for installation of the remaining configuration, the interior is made of a hollow cylindrical structure. In this case, a sludge inlet 111a and a combustion gas outlet 112b are formed at an upper portion of the case 110, and a sludge outlet 111b and a combustion gas inlet 112a are formed at a lower portion of the case 110. That is, in the present invention, the sludge is supplied from the top to the bottom, and the combustion gas is supplied from the bottom to the top. On the other hand, the inner circumferential surface of the case 110 is preferably refractory is applied to prevent the external discharge of the heat of combustion.
다음, 상기 회전 샤프트(120)는 상기 디스크 플레이트(140)의 회전을 위한 구성으로, 파이프(121), 지지판(122), 보강 리브(123)와 함께 조립되어 상기 케이스(110)의 중심축에 회전 가능하게 설치된다. 이 경우, 상기 회전 샤프트(120)의 설치 방법은 공지된 사항이므로 여기서는 상세한 설명을 생략하기로 한다.Next, the rotation shaft 120 is configured for the rotation of the disk plate 140, assembled with a pipe 121, the support plate 122, the reinforcing rib 123 to the central axis of the case 110 It is rotatably installed. In this case, since the installation method of the rotary shaft 120 is a known matter, a detailed description thereof will be omitted.
계속하여, 상기 구동 모터(130)는 상기 회전 샤프트(120)의 회전을 위한 구성으로, 상기 회전 샤프트(120)와 팬벨트(도면 미도시) 또는 기어(도면 미도시)에 의해 결합되어 구동력을 전달한다. 이 경우, 상기 구동 모터(130)의 종류 및 개수는 특별히 제한되지 않으며, 공지된 다양한 형태의 구동 모터를 적절한 수로 설치하여 사용할 수 있다.Subsequently, the drive motor 130 is configured for rotation of the rotary shaft 120, and is coupled by the rotary shaft 120 and the fan belt (not shown) or gear (not shown) to drive the driving force. To pass. In this case, the type and number of the driving motor 130 are not particularly limited, and various types of known driving motors may be installed and used.
계속하여, 상기 디스크 플레이트(140)는 연소가스와 오니의 흐름을 위한 구성으로, 상기 케이스(110) 내에서 회전 가능하도록 원판형으로 제작되어 상기 회전 샤프트(120)에 다단 설치된다. 이 경우, 상기 디스크 플레이트(140)의 표면에는 연소열 또는 오니의 통로로서 다수의 연소가스 흐름공이 형성되는데, 이에 대해서는 후술하여 상세히 설명하도록 한다.Subsequently, the disk plate 140 is configured for the flow of combustion gas and sludge, and is manufactured in a disc shape so as to be rotatable in the case 110 and installed in the rotary shaft 120 in multiple stages. In this case, a plurality of combustion gas flow holes are formed on the surface of the disc plate 140 as passages of combustion heat or sludge, which will be described in detail later.
마지막으로, 상기 가이드판(160)은 연소가스의 흐름을 일정한 방향으로 안내하기 위한 본 발명의 특징적인 구성으로, 상기 케이스(110)의 내측벽으로부터 연장되어 상기 디스크 플레이트(140)의 상부에 각각 이격 설치된다.Finally, the guide plate 160 is a characteristic configuration of the present invention for guiding the flow of the combustion gas in a predetermined direction, extending from the inner wall of the case 110, respectively on top of the disk plate 140 Spaced apart.
상술한 바와 같이 상기 가이드판(160)을 설치하면 하부로부터 전달되는 연소가스가 상기 케이스(110)와 상기 디스크 플레이트(140)의 사이 공간을 통해 상승하여 바로 배출되는 것을 방지할 수 있다. 즉, 연소가스가 상기 가이드판(160)에 의해 일단 상기 디스크 플레이트(140)의 중심 방향으로 이송되어 오니를 건조시킨 다음 상단의 디스크 플레이트로 이송되기 때문에 불필요한 열손실 없이 각 단의 오니를 완전하게 건조시킬 수 있다. 다시 말해, 하부로부터 공급된 연소열이 상부로 바로 배출되지 않고 각 단의 디스크 플레이트를 반드시 거친 후 상부에까지 이르도록 가이드함으로써 열전달 효율을 극대화한 것이다.As described above, when the guide plate 160 is installed, the combustion gas transferred from the lower portion may be prevented from rising immediately through the space between the case 110 and the disc plate 140. That is, since the combustion gas is once transferred to the center of the disk plate 140 by the guide plate 160 to dry the sludge and then transferred to the upper disk plate, the sludge at each stage is completely removed without unnecessary heat loss. Can be dried. In other words, the heat transfer efficiency is maximized by guiding the combustion heat supplied from the lower part to the upper part after passing through the disc plate of each stage without passing directly to the upper part.
이 경우, 상기 가이드판(160)은 하방으로 경사지게 설치되는 것이 바람직하다. 왜냐하면, 상기 케이스(110)와 상기 디스크 플레이트(140) 사이의 공간으로는 연소가스 뿐 아니라 오니도 떨어지게 되는데, 상기 가이드판(160)이 수평하게 설치되면 오니가 쌓이게 되어 연소가스의 통로를 막아버릴 수 있기 때문이다. 따라서 본 발명에서는 상기 가이드판(160)을 하방으로 경사지게 설치하여 오니가 쌓이지 않고 하단의 디스크 플레이트로 떨어지게 한 것이다.In this case, the guide plate 160 is preferably installed to be inclined downward. Because, not only combustion gas but also sludge fall into the space between the case 110 and the disk plate 140, when the guide plate 160 is installed horizontally, the sludge is accumulated to block the passage of the combustion gas. Because it can. Therefore, in the present invention, the guide plate 160 is installed to be inclined downward so that sludges do not accumulate and fall to the bottom disc plate.
이상으로 본 발명의 기본적인 구성에 대해 설명하였다. 본 발명은 이러한 구성에 더불어 서로 역방향에서 공급되는 오니와 연소가스를 원활하게 이송시켜 활발히 접촉시키기 위한 구성을 추가적으로 구비하는 바, 이하에서는 이에 대해 도면을 참고하여 상세히 설명하도록 한다.The basic configuration of the present invention has been described above. In addition to the above configuration, the present invention further includes a configuration for smoothly transferring the sludge and the combustion gas supplied from the reverse direction to each other and actively contacting it. Hereinafter, this will be described in detail with reference to the accompanying drawings.
도 6은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 디스크 플레이트를 도시한 도면이다.6 is a view showing a disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention.
먼저, 도 6에 도시된 바와 같이, 상기 디스크 플레이트(140)에는 연소가스 흐름공(142)과 오니 배출공(141)이 형성될 수 있다.First, as shown in FIG. 6, a combustion gas flow hole 142 and a sludge discharge hole 141 may be formed in the disc plate 140.
구체적으로, 상기 연소가스 흐름공(142)은 연소가스 또는 오니의 통로로 작용하는 구성으로 오니의 크기, 양 등에 따라 소정의 형태와 간격으로 다수 형성된다. 한편, 상기 연소가스 흐름공(142)의 크기의 경우에는 형태, 간격과 마찬가지로 오니에 따라 적절하게 조절될 수 있기는 하나, 하부에서 상부로 갈수록 작아지는 것이 바람직하다.Specifically, the combustion gas flow hole 142 is formed in a plurality of predetermined shapes and intervals according to the size, amount, etc. of the sludge as a configuration that acts as a passage of the combustion gas or sludge. On the other hand, in the case of the size of the combustion gas flow hole 142 can be appropriately adjusted according to the sludge as in the form, the interval, it is preferable that the smaller from the bottom to the top.
왜냐하면, 하부에서 공급되는 연소가스의 압력은 상부로 갈수록 점차 감소하게 되는데, 상기 연소가스 흐름공(142)의 크기가 상부에서 더 크지 않으면 감소된 압력만큼 연소가스의 상승폭이 줄어들 수 밖에 없어 최상단까지 연소열이 전달될 수 없기 때문이다. 따라서 본 발명에서는 상기 연소가스 흐름공(142)의 크기를 상부에서 더 크게 형성함으로써 감소된 압력을 보상하여 연소가스의 상승이 지속적으로 이루어지도록 한 것이다.Because, the pressure of the combustion gas supplied from the lower gradually decreases toward the top, if the size of the combustion gas flow hole 142 is not larger in the upper portion, the ascending width of the combustion gas must be reduced by the reduced pressure to the top This is because the heat of combustion cannot be transferred. Therefore, in the present invention, the size of the combustion gas flow hole 142 is made larger at the top to compensate for the reduced pressure so that the combustion gas is continuously raised.
또한, 상술한 연소가스의 흐름과 반대로 상부에서 공급되는 오니는 최초 점성에 의해 뭉쳐진 상태에서 하부로 이송됨에 따라 부피가 점차 작아지기 때문에 이러한 오니가 하부로 원활하게 이송되기 위해서도 상기 연소가스 흐름공(142)의 크기는 상부에서 더 큰 것이 유리하다.In addition, the sludge supplied from the upper side as opposed to the above-described flow of the combustion gas is gradually reduced in volume as it is transferred to the lower side in the state of being aggregated by the initial viscosity, so that the sludge is smoothly transferred to the lower portion of the combustion gas flow hole ( The size of 142 is advantageously larger at the top.
한편, 상기 연소가스 흐름공(142)의 형태는 전술한 바와 같이 소정의 형상으로 이루어질 수 있으나, 바람직하게는 직선형 연소가스 흐름공(142a)과 원형 연소가스 흐름공(142b)을 혼합하여 구성된다. 이 경우, 상기 직선형 연소가스 흐름공(142a)은 상기 디스크 플레이트(140)의 테두리부에 지름 방향을 따라 방사상으로 형성되고, 상기 원형 연소가스 흐름공(142b)은 상기 디스크 플레이트(140)의 중심부에 원주 방향을 따라 원형으로 형성된다.On the other hand, the combustion gas flow hole 142 may be formed in a predetermined shape as described above, but preferably comprises a mixture of a linear combustion gas flow hole 142a and a circular combustion gas flow hole 142b. . In this case, the straight combustion gas flow hole 142a is radially formed along the radial direction of the disc plate 140, and the circular combustion gas flow hole 142b is a central portion of the disc plate 140. Is formed in a circle along the circumferential direction.
본 발명에서 상기 연소가스 흐름공(142)을 상술한 바와 같이 서로 다른 2가지 형태로 구성하는 것은 오니의 배출을 원활하게 하는 동시에 상기 디스크 플레이트(140)의 열변형을 방지하기 위한 것이다.In the present invention, the combustion gas flow hole 142 is configured in two different forms as described above to facilitate the discharge of the sludge and to prevent thermal deformation of the disc plate 140.
즉, 통상적으로 오니가 상기 디스크 플레이트(140)에 떨어지면 점성으로 인해 늘러 붙게 되는데, 이 때, 상기 디스크 플레이트(140)에 상기 원형 연소가스 흐름공(142b)만 존재하게 되면 오니와 연소열의 접촉 면적이 매우 작아 열전달이 매우 느리게 진행되고, 이에 따라 점성이 일정 시간 유지됨으로써 상기 원형 연소가스 흐름공(142b)이 폐색될 수 밖에 없다. 결국, 연소가스의 추가적인 상승이 차단됨으로써 상부의 오니는 건조될 수 없는 것이다.In other words, when the sludge falls on the disk plate 140, the sludge is attached to the disk plate 140 due to viscosity. In this case, when only the circular combustion gas flow hole 142b is present in the disk plate 140, the contact area between sludge and combustion heat is present. This very small heat transfer proceeds very slowly, and thus the viscosity of the circular flue gas flow hole 142b is inevitably closed because the viscosity is maintained for a certain time. As a result, the further rise of the combustion gas is blocked so that the upper sludge cannot be dried.
반면, 상기 직선형 연소가스 흐름공(142a)이 추가적으로 구비되어 있을 경우에는 오니와 연소열의 접촉 면적이 훨씬 넓어지기 때문에 건조가 신속하게 이루어져 오니가 하부로 바로 떨어지게 되고, 이에 따라 연소열은 계속적으로 상승하여 상부의 오니까지 전달될 수 있다. 따라서 본 발명에서는 상술한 바와 같이 상기 연소가스 흐름공(142)을 원형과 직선형을 혼합하여 구성한 것이다.On the other hand, when the linear combustion gas flow hole 142a is additionally provided, the contact area between the sludge and the heat of combustion becomes much wider, so that drying occurs quickly and the sludge falls immediately to the bottom, and thus the combustion heat continuously increases. It can be delivered to the sludge above. Therefore, in the present invention, as described above, the combustion gas flow hole 142 is formed by mixing a circular shape and a straight shape.
한편, 오니의 점성과 부피는 최초 공급되었을 때 가장 크고 하부로 갈수록 점차 줄어들기 때문에 하부에서는 상기 직선형 연소가스 흐름공(142a)이 크게 필요하지 않다. 따라서 상기 직선형 연소가스 흐름공(142a)은 상부 디스크 플레이트, 보다 구체적으로는, 상기 케이스(110)의 상부 1/3 영역까지에만 형성되는 것이 바람직하다.On the other hand, since the viscosity and volume of the sludge is the largest when initially supplied and gradually decreases toward the lower side, the linear combustion gas flow hole 142a is not largely necessary at the bottom. Therefore, the straight combustion gas flow hole 142a is preferably formed only in the upper disk plate, more specifically, the upper 1/3 area of the case 110.
또한, 상술한 바와 같이 상기 연소가스 흐름공(142)을 혼합 구성하면 상기 디스크 플레이트(140)의 열변형까지 방지할 수 있다. 즉, 건조를 위한 연소가스의 온도는 매우 높기 때문에 상기 오니 건조 장치(100)를 수회에 걸쳐 지속적으로 가동할 경우 상기 디스크 플레이트(140)가 수축 또는 팽창되어 변형될 수 있다. 그러나 본 발명에서와 같이 상기 디스크 플레이트(140)에 상기 직선형 연소가스 흐름공(142a)과 상기 원형 연소가스 흐름공(142b)이 형성되어 있으면 상기 디스크 플레이트(140)에 가해지는 연소열이 상기 직선형 연소가스 흐름공(142a) 및/또는 상기 원형 연소가스 흐름공(142b)의 수축 또는 팽창으로 상쇄되기 때문에 변형을 방지할 수 있는 것이다.In addition, when the combustion gas flow hole 142 is mixed as described above, it is possible to prevent thermal deformation of the disk plate 140. That is, since the temperature of the combustion gas for drying is very high, when the sludge drying apparatus 100 is continuously operated several times, the disk plate 140 may be deformed or expanded and deformed. However, when the linear combustion gas flow hole 142a and the circular combustion gas flow hole 142b are formed in the disk plate 140 as in the present invention, the combustion heat applied to the disk plate 140 is the linear combustion. Deformation can be prevented because it is offset by the contraction or expansion of the gas flow hole 142a and / or the circular combustion gas flow hole 142b.
이상으로 본 발명에서 열전달 효율을 향상시킬 수 있는 추가적인 구성에 대해 설명하였다. 한편, 본 발명은 열전달과 함께 오니의 이송을 원활하게 하기 위한 구성도 추가적으로 구비할 수 있는 바, 이하에서는 도면을 참고하여 상세하게 설명한다.In the present invention has been described for the additional configuration that can improve the heat transfer efficiency. On the other hand, the present invention can be further provided with a configuration for smooth transfer of sludge together with heat transfer, hereinafter will be described in detail with reference to the drawings.
도 7은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 오니 배출공의 형성 위치를 도시한 도면이다.7 is a view showing the position of forming the sludge discharge hole of the sludge drying apparatus according to a preferred embodiment of the present invention.
도 7을 추가적으로 참고하면, 상기 디스크 플레이트(140)에는 상기 연소가스 흐름공(142) 외에 상기 오니 배출공(141)이 추가적으로 형성될 수 있다. 구체적으로, 상기 오니 배출공(141)은 상기 디스크 플레이트(140)에 지름 방향을 따라 직선형으로 형성되며, 인접하는 오니 배출공과는 일정한 방위각을 가지도록 한다. 예컨대, 본 실시예에서는 상기 오니 배출공(141)이 90도의 방위각을 가지며 4개가 형성된 것을 나타내었다. 그러나 상기 오니 배출공(141)의 배치 형태가 이에 한정되는 것은 아니며, 오니의 크기 및 양에 따라 방위각과 개수를 적절하게 조절할 수 있는 것으로 이해되어야 한다.Referring to FIG. 7, the sludge discharge hole 141 may be additionally formed in the disc plate 140 in addition to the combustion gas flow hole 142. Specifically, the sludge discharge hole 141 is formed in a straight line in the radial direction on the disk plate 140, so as to have a constant azimuth with the adjacent sludge discharge hole. For example, in the present embodiment, the sludge discharge hole 141 has an azimuth angle of 90 degrees and shows four. However, the arrangement form of the sludge discharge hole 141 is not limited thereto, and it should be understood that the azimuth and the number may be properly adjusted according to the size and amount of the sludge.
이처럼 상기 디스크 플레이트(140)에 상기 오니 배출공(141)을 별도로 마련하면 부피가 큰 오니도 하단으로 쉽게 이송될 수 있어 연소가스의 흐름이 보다 원활해질 수 있다. 이 경우, 상단과 하단의 오니 배출공이 서로 동일한 위치에 형성되면 오니가 최하단까지 바로 떨어져 건조될 수 없으므로 하단의 오니 배출공(141a)이 상단의 오니 배출공(141)과 겹치지 않아야 함은 물론이다.When the sludge discharge hole 141 is separately provided in the disc plate 140 as described above, a large volume of sludge may be easily transferred to a lower end of the sludge so that the flow of combustion gas may be smoother. In this case, when the sludge discharge hole at the top and the bottom is formed at the same position, the sludge discharge hole 141a at the bottom should not overlap with the sludge discharge hole 141 at the top because the sludge cannot be dried right up to the bottom end. .
도 8은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 스크레이퍼의 설치 상태를 도시한 도면이고, 도 9는 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 디스크 플레이트에 스크레이퍼가 반대로 설치된 모습을 도시한 도면이다.8 is a view showing the installation state of the scraper of the sludge drying apparatus according to a preferred embodiment of the present invention, Figure 9 is a view showing a state in which the scraper is reversely installed on the disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention. One drawing.
도 8 및 도 9를 추가적으로 참고하면, 상기 디스크 플레이트(140)의 상부에는 상기 케이스(110)의 내측벽으로부터 연장되는 스크레이퍼(150)가 이격 설치될 수 있다. 상기 스크레이퍼(150)는 상기 디스크 플레이트(140) 위에 점성을 가지고 벌크(bulk) 형태로 뭉쳐져 있는 오니를 건조에 적합하게 얇게 펼치기 위한 구성으로, 상기 스크레이퍼(150)와 상기 디스크 플레이트(140) 사이의 간격이 너무 크면 오니가 그대로 통과하고, 너무 작으면 마찰이 발생하여 마모되기 때문에 오니의 크기 및 양에 따라 적절하게 조절되는 것이 바람직하다.8 and 9, the scraper 150 extending from the inner wall of the case 110 may be spaced apart from the upper portion of the disk plate 140. The scraper 150 has a structure for spreading thin sludge, which is agglomerated in a bulk form, with a viscosity on the disk plate 140, suitable for drying, between the scraper 150 and the disk plate 140. If the gap is too large, the sludge will pass through as it is, and if it is too small, friction will occur and wear. Therefore, it is preferable to adjust according to the size and amount of the sludge.
이 경우, 상기 스크레이퍼(150)는 오니를 완전하게 분쇄할 수 있도록 인접하는 스크레이퍼와 일정한 방위각을 가지고 상기 디스크 플레이트(140)의 테두리부로부터 중심부까지 전 영역에 고르게 배치되는 것이 바람직하다. 예컨대, 여기서는 상기 스크레이퍼(150)가 3개 마련되어 120도의 방위각을 가지고 상기 디스크 플레이트(140)의 테두리부, 중간부, 중심부에 차례대로 배치된 것을 예시하였다. 그러나 상기 스크레이퍼(150)의 배치 형태가 이에 한정되는 것은 아니며, 상기 오니의 크기 및 양에 따라 방위각과 개수를 적절하게 조절할 수 있는 것으로 이해되어야 한다.In this case, the scraper 150 is preferably evenly disposed in the entire area from the edge portion of the disk plate 140 to the center portion with a predetermined azimuth angle with the adjacent scraper so as to completely grind the sludge. For example, in this example, three scrapers 150 are provided to have an azimuth angle of 120 degrees and are sequentially disposed at an edge portion, a middle portion, and a central portion of the disc plate 140. However, the arrangement of the scraper 150 is not limited thereto, and it should be understood that the azimuth and the number can be appropriately adjusted according to the size and amount of the sludge.
한편, 상기 스크레이퍼(150)는 상기 회전 샤프트(120)를 중심으로 상기 디스크 플레이트(140)의 회전 방향과 반대 방향으로 경사지게 설치되는 것이 바람직하다. 즉, 상술한 바와 같이 상기 스크레이퍼(150)의 설치 각도를 조절하면 분쇄되지 않은 오니가 상기 스크레이퍼(150)에 의해 가이드되어 상기 디스크 플레이트(140)의 중심부로 이동함으로써 체류시간이 길어지게 되고, 이에 따라 건조가 보다 확실하게 이루어질 수 있다.On the other hand, the scraper 150 is preferably installed to be inclined in a direction opposite to the rotation direction of the disk plate 140 around the rotation shaft 120. That is, as described above, when the installation angle of the scraper 150 is adjusted, the crushed sludge is guided by the scraper 150 to move to the center of the disk plate 140, thereby increasing the residence time. Therefore, drying can be made more reliably.
이 경우, 중심 방향으로 가이드되는 오니는 상기 연소가스 흐름공(142) 또는 상기 오니 배출공(141)을 통해 하단으로 배출되는데, 이렇게 배출된 오니를 하단에서도 일정 시간 체류시켜 건조시키기 위해 도 9에 도시된 바와 같이 하단의 디스크 플레이트에서 상기 스크레이퍼(150)의 방향을 반대로 설치하는 것도 가능하다.In this case, the sludge guided in the center direction is discharged to the lower end through the combustion gas flow hole 142 or the sludge discharge hole 141, so that the discharged sludge stays at the lower end for a predetermined time to dry in FIG. 9. As shown in the figure, it is also possible to reverse the direction of the scraper 150 in the lower disk plate.
즉, 하단에서 상기 스크페이퍼(150)의 설치 방향을 반대로 구성함으로써 하단 디스크 플레이트의 중심부로 떨어진 오니를 테두리부로 이송시켜 체류시간을 최대로 확보한 것이다. 이러한 구성에 의해 오니는 디스크 플레이트의 단이 바뀔 때마다 중심부와 테두리부를 왕복 운동하면서 연소열에 지속적으로 노출됨으로써 건조가 더욱 활발하게 이루어질 수 있다.That is, by configuring the installation direction of the scraper 150 at the lower end to transfer the sludge dropped to the center of the lower disk plate to the rim to ensure the maximum residence time. With this configuration, the sludge can be made more active by continuously exposing to the heat of combustion while reciprocating the center and the rim each time the stage of the disc plate is changed.
도 10은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 하부 디스크 플레이트를 도시한 도면이고, 도 11은 본 발명의 바람직한 실시예에 따른 오니 건조 장치의 스크레이퍼에 브러쉬가 설치된 모습을 도시한 도면이다.10 is a view showing the lower disk plate of the sludge drying apparatus according to a preferred embodiment of the present invention, Figure 11 is a view showing a brush installed in the scraper of the sludge drying apparatus according to a preferred embodiment of the present invention. .
한편, 도 10을 참고하면, 전술한 바와 같이 상기 디스크 플레이트(140) 중 하부 디스크 플레이트에는 상기 원형 연소가스 흐름공(142b)만이 형성되어 있기 때문에 오니가 집적되기 쉽다. 따라서 이러한 오니를 제거하여 연소열의 흐름을 원활히 하기 위해 도 11에 도시된 바와 같이 상기 스크레이퍼(150)의 하부에 브러쉬(151)가 설치되는 것도 가능하다.Meanwhile, referring to FIG. 10, since only the circular combustion gas flow hole 142b is formed in the lower disk plate of the disk plate 140 as described above, sludge is easily accumulated. Therefore, in order to remove the sludge to smoothly flow the combustion heat, as shown in FIG. 11, the brush 151 may be installed under the scraper 150.
이 경우, 상기 스크레이퍼(150)는 측면에서 보았을 때 상기 디스크 플레이트(140)의 회전 방향으로 경사지게 설치되는 것이 바람직하다. 즉, 상기 스크레이퍼(150)의 설치 각도를 조절하면 상기 브러쉬(151)가 상기 디스크 플레이트(140)에 밀착될 수 있고, 이에 따라 상기 디스크 플레이트(140)의 회전시 상기 원형 연소가스 흐름공(142b)의 보다 깊은 곳까지 삽입되어 오니를 완전하게 제거할 수 있다.In this case, the scraper 150 is preferably installed to be inclined in the rotational direction of the disk plate 140 when viewed from the side. That is, when the installation angle of the scraper 150 is adjusted, the brush 151 may be in close contact with the disk plate 140, and thus the circular combustion gas flow hole 142b may be rotated when the disk plate 140 is rotated. The deeper part of) can be inserted to remove sludge completely.
이상으로 본 발명에 따른 오니 건조 장치의 구성을 설명하였다. 이하에서는 본 발명의 작용을 설명한다.The configuration of the sludge drying apparatus according to the present invention has been described above. Hereinafter, the operation of the present invention.
먼저, 상기 연소가스 유입구(112a)와 상기 오니 유입구(111a)를 통해 상기 케이스(110) 내로 연소가스와 오니를 공급한다.First, combustion gas and sludge are supplied into the case 110 through the combustion gas inlet 112a and the sludge inlet 111a.
다음, 연소가스 및 오니의 공급과 동시에 상기 구동 모터(130)를 작동하여 상기 디스크 플레이트(140)를 회전시키면 오니가 상기 스크레이퍼(150)에 의해 얇게 펼쳐지면서 상기 연소가스 흐름공(142), 상기 오니 배출공(141) 또는 상기 가이드판(160)을 통해 하단의 디스크 플레이트로 차례대로 떨어지게 된다.Next, when the disk plate 140 is rotated by operating the drive motor 130 simultaneously with the supply of the combustion gas and the sludge, the sludge is unfolded thinly by the scraper 150 and the combustion gas flow hole 142. Through the sludge discharge hole 141 or the guide plate 160, it is dropped in sequence to the lower disk plate.
이와 동시에 연소가스 또한 상술한 통로들을 통해 상승하는데, 특히, 상기 디스크 플레이트(140)의 하부에서는 상기 직선형 연소가스 흐름공(142a)에 늘러 붙은 오니를 직접 건조시켜 하부로 떨어뜨리고, 상기 디스크 플레이트(140)의 상부에서는 상기 가이드판(160)을 통해 중심부로 이동하면서 오니를 건조시킨 후 다시 상기 가이드판(160)을 통해 상단의 디스크 플레이트로 상승하게 된다.At the same time, the combustion gas also rises through the above-described passages. In particular, the lower portion of the disk plate 140 directly dries the sludge accumulated in the linear combustion gas flow hole 142a and drops it to the lower portion. In the upper portion of the 140, the sludge is dried while moving to the center through the guide plate 160, and then rises to the upper disk plate through the guide plate 160 again.
한편, 상기 디스크 플레이트(140)에 잔존하는 오니는 상기 스크레이퍼(150)에 의해 중심부로 이송되어 하단으로 떨어진 후 다시 테두리부로 이송되는 왕복 운동을 반복하면서 지속적으로 건조된다.On the other hand, the sludge remaining on the disk plate 140 is continuously dried while being transported to the center by the scraper 150, dropped to the bottom, and then reciprocated to the rim.
마지막으로, 상술한 바와 같은 과정을 통해 오니가 최하단의 디스크 플레이트까지 이송되면 완전히 분쇄되어 건조된 상태로 상기 오니 배출구(111b)를 통해 외부로 방출되고, 각 단의 디스크 플레이트를 거치면서 오니를 건조시킨 후 최상단에까지 상승된 연소가스는 상기 연소가스 배출구(112b)를 통해 외부로 배출된다.Finally, when the sludge is transported to the lowest disk plate through the above-described process, the sludge is completely crushed and discharged to the outside through the sludge discharge port 111b, and the sludge is dried while passing through the disc plates at each stage. After the combustion gas is raised to the top, the combustion gas is discharged to the outside through the combustion gas outlet 112b.
이상으로 본 발명의 작용을 설명하였다. 이와 같은 본 발명을 응용하면 오니 건조 시스템을 구성할 수 있는 바 이하 이에 대해 상세하게 설명하도록 한다.The operation of the present invention has been described above. Application of the present invention as described above can be configured in the sludge drying system to be described in detail below.
도 12는 본 발명의 바람직한 실시예에 따른 오니 건조 시스템을 도시한 개략도이다.12 is a schematic diagram illustrating a sludge drying system according to a preferred embodiment of the present invention.
도 12에 도시된 바와 같이, 본 발명의 바람직한 실시예에 따른 오니 건조 시스템(200)은 오니 저장 탱크(210)와, 오니 건조 장치(220)와, 연소가스 공급 수단(230)과, 송풍기(240) 및 제어 패널(250)을 포함하여 구성된다.As shown in FIG. 12, the sludge drying system 200 according to a preferred embodiment of the present invention includes a sludge storage tank 210, a sludge drying apparatus 220, a combustion gas supply means 230, and a blower ( 240 and the control panel 250 is configured.
구체적으로, 상기 오니 저장 탱크(210)는 건조시킬 오니를 보관하기 위한 구성으로, 하부에 오니를 회전시키면서 일방향으로 이송하기 위한 스크류 컨베어(211)가 설치된다.Specifically, the sludge storage tank 210 is configured to store the sludge to be dried, and a screw conveyor 211 for transporting the sludge in one direction while rotating the sludge is installed.
다음, 상기 오니 건조 장치(220)는 상기 오니 저장 탱크(210)에 설치된 펌프(212)에 의해 오니를 공급받아 건조시킨 후 외부로 배출하기 위한 구성으로, 본 발명에서는 하부에서 유입되는 연소가스를 상부까지 원활하게 공급하여 상부에서 하부로 공급되는 오니를 완전하게 건조시키는 것을 특징으로 한다. 이 경우, 상기 오니 건조 장치(220)로는 본 발명에 따른 오니 건조 장치를 사용하는 것이 바람직하다.Next, the sludge drying apparatus 220 is configured to discharge the sludge after receiving the sludge by the pump 212 installed in the sludge storage tank 210 and discharge it to the outside. It is characterized in that the sludge supplied from the top to the bottom to be smoothly supplied to completely dry. In this case, it is preferable to use the sludge drying apparatus according to the present invention as the sludge drying apparatus 220.
계속하여, 상기 연소가스 공급 수단(230)은 상기 오니 건조 장치(220)에 연소가스를 공급하기 위한 구성으로, 상기 오니 건조 장치(220)와 배관(231)에 의해 서로 연결되며, 상기 배관(231)에 설치된 댐퍼(232)를 이용하여 연소가스의 공급량을 조절한다. 본 발명에서 상기 연소가스 공급 수단(230)은 소각로(230a)(230b)를 사용하는 것이 바람직하다. 즉, 상기 소각로(230a)(230b)의 가동시 발생하는 폐열가스를 외부로 방출하지 않고 상기 오니 건조 장치(220)에 공급하여 오니의 수분을 제거하기 위한 열원으로 재활용함으로써 종래 버너의 사용에 따른 설치, 유지 및 보수비용 등을 절감하는 것이다. 이 경우, 여기서는 상기 소각로(230a)(230b)가 2개 설치된 것을 예시하였으나, 상기 오니 건조 장치(220)가 설치되는 소각설비의 규모에 따라 적절하게 가감할 수 있음은 물론이다.Subsequently, the combustion gas supply means 230 is configured to supply combustion gas to the sludge drying apparatus 220, and is connected to each other by the sludge drying apparatus 220 and a pipe 231, and the piping ( The supply amount of the combustion gas is adjusted by using the damper 232 installed at 231. In the present invention, the combustion gas supply means 230 preferably uses incinerators 230a and 230b. That is, the waste heat gas generated during operation of the incinerators 230a and 230b is supplied to the sludge drying apparatus 220 without being discharged to the outside and recycled as a heat source for removing water from the sludge according to the use of a conventional burner. To reduce installation, maintenance and repair costs. In this case, although two incinerators 230a and 230b are illustrated here, the sludge drying apparatus 220 may be appropriately added or subtracted according to the scale of the incineration facility in which the sludge drying apparatus 220 is installed.
계속하여, 상기 송풍기(240)는 상기 오니 건조 장치(220)에서 오니를 건조시킨 후 방출되는 연소가스를 외부로 배출하기 위한 구성으로, 배관(241)에 의해 상기 오니 건조 장치(220)와 연결된다. 이 경우, 연소가스를 외부로 배출하지 않고 다른 소각로에 공급하여 다시 재활용하는 것도 가능하다.Subsequently, the blower 240 is configured to discharge the combustion gas discharged after drying the sludge in the sludge drying apparatus 220 to the outside, and is connected to the sludge drying apparatus 220 by a pipe 241. do. In this case, the combustion gas may be supplied to another incinerator without being discharged to the outside and recycled again.
마지막으로, 상기 제어 패널(250)은 각 구성의 동작, 예컨대, 상기 스크류 컨베어(211)의 회전 속도, 상기 펌프(212)의 온/오프(On/Off), 상기 댐퍼(232)의 개폐 등을 제어하여 오니의 종류, 양, 수분 함유량에 따라 건조 온도 및 속도를 조절하기 위한 구성으로, 컨트롤부, 디스플레이부, 스위치부 등의 공지된 부품으로 구성된다.Finally, the control panel 250 may operate in each configuration, for example, the rotational speed of the screw conveyor 211, the on / off of the pump 212, the opening and closing of the damper 232, and the like. It is configured to control the drying temperature and speed according to the type, amount, moisture content of the sludge, and is composed of known parts such as a control part, a display part, a switch part.
한편, 상기 오니 건조 시스템(200)은 상술한 구성 외에 펠렛타이저(도면 미도시)를 추가적으로 구비할 수 있다. 구체적으로, 상기 펠렛타이저는 상기 오니 공급 장치(220)의 하부에 설치되어 건조된 상태로 배출되는 오니를 펠렛 형태로 가공하게 된다. 이 경우, 펠렛 형태로 가공된 오니는 수분이 완전하게 제거되어 쉽게 연소되기 때문에 각종 발열 장치의 열원으로 재활용될 수 있다.On the other hand, the sludge drying system 200 may further include a pelletizer (not shown) in addition to the above-described configuration. Specifically, the pelletizer is installed in the lower portion of the sludge supply apparatus 220 to process the sludge discharged in a dried state into a pellet form. In this case, the sludge processed in the form of pellets can be recycled as a heat source of various heating devices because the moisture is completely removed and easily burned.
이상으로 본 발명의 바람직한 실시예를 도면을 참고하여 상세하게 설명하였다. 본 발명의 설명은 예시를 위한 것이며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자는 본 발명의 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 쉽게 변형이 가능하다는 것을 이해할 수 있을 것이다.Preferred embodiments of the present invention have been described in detail above with reference to the drawings. The description of the present invention is for illustrative purposes, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention.
따라서 본 발명의 범위는 상술한 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미, 범위, 및 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.Therefore, the scope of the present invention is represented by the following claims rather than the detailed description, and all changes or modifications derived from the meaning, scope, and equivalent concepts of the claims are included in the scope of the present invention. Should be interpreted as

Claims (8)

  1. 상부에는 오니 유입구 및 연소가스 배출구가 형성되고, 하부에는 오니 배출구 및 연소가스 유입구가 형성되는 케이스와;A case in which a sludge inlet and a combustion gas inlet are formed at an upper portion thereof, and a sludge outlet and a combustion gas inlet are formed at a lower portion thereof;
    상기 케이스의 중심축에 설치되는 회전 샤프트와;A rotating shaft installed at the central axis of the case;
    상기 회전 샤프트를 회전시키는 구동 모터와;A drive motor for rotating the rotary shaft;
    상기 회전 샤프트에 다단 설치되며, 표면에 연소가스 흐름공이 형성되는 디스크 플레이트; 및A disk plate installed in the rotary shaft in multiple stages and having a combustion gas flow hole formed on a surface thereof; And
    상기 케이스의 내측벽으로부터 각각 연장되어 상기 디스크 플레이트의 상부에 이격 설치되는 다수의 스크레이퍼;를 포함하되,And a plurality of scrapers extending from an inner wall of the case and spaced apart from each other on an upper portion of the disc plate.
    상기 케이스의 내측벽에는 하방으로 경사져 상기 디스크 플레이트의 상부에 이격 설치되는 가이드판이 구비되는 것을 특징으로 하는 오니 건조 장치.Sludge drying apparatus characterized in that the inner side wall of the case is provided with a guide plate which is inclined downward and spaced apart from the upper portion of the disk plate.
  2. 제 1 항에 있어서,The method of claim 1,
    상기 연소가스 흐름공의 크기는 상기 디스크 플레이트 중 하부 디스크 플레이트에서 상부 디스크 플레이트로 갈수록 커지는 것을 특징으로 하는 오니 건조 장치.The combustion gas flow hole is the size of the sludge drying apparatus, characterized in that the larger from the lower disk plate to the upper disk plate of the disk plate.
  3. 제 2 항에 있어서,The method of claim 2,
    상기 연소가스 흐름공은 상기 디스크 플레이트의 테두리부에 형성되는 직선형 연소가스 흐름공과, 상기 디스크 플레이트의 중심부에 형성되는 원형 연소가스 흐름공으로 구성되는 것을 특징으로 하는 오니 건조 장치.The combustion gas flow hole is a sludge drying apparatus comprising a straight combustion gas flow hole formed in the edge portion of the disk plate and a circular combustion gas flow hole formed in the center of the disk plate.
  4. 제 3 항에 있어서,The method of claim 3, wherein
    상기 직선형 연소가스 흐름공은 상기 상부 디스크 플레이트에만 형성되는 것을 특징으로 하는 오니 건조 장치.The linear combustion gas flow holes are sludge drying apparatus, characterized in that formed only in the upper disk plate.
  5. 제 2 항에 있어서,The method of claim 2,
    상기 상부 디스크 플레이트에는 적어도 하나 이상의 오니 배출공이 지름 방향을 따라 형성되는 것을 특징으로 하는 오니 건조 장치.At least one sludge discharge hole is formed in the upper disk plate along the radial direction, the sludge drying apparatus.
  6. 제 1 항에 있어서,The method of claim 1,
    상기 스크레이퍼는 상기 디스크 플레이트의 회전 방향과 반대 방향으로 경사져 설치되는 것을 특징으로 하는 오니 건조 장치.The scraper is a sludge drying apparatus, characterized in that installed inclined in a direction opposite to the rotation direction of the disk plate.
  7. 제 1 항에 있어서,The method of claim 1,
    상기 스크레이퍼의 경사 방향은 상기 디스크 플레이트의 각 단마다 서로 반대인 것을 특징으로 하는 오니 건조 장치.Sludge direction of the scraper is the sludge drying apparatus, characterized in that the opposite of each step of the disk plate.
  8. 제 1 항에 있어서,The method of claim 1,
    상기 스크레이퍼의 하부에는 브러쉬가 구비되는 것을 특징으로 하는 오니 건조 장치.Sludge drying apparatus, characterized in that provided with a brush in the lower portion of the scraper.
PCT/KR2011/004792 2010-06-30 2011-06-30 Sludge-drying apparatus WO2012002744A2 (en)

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