TW201641444A - Sludge drying system and method - Google Patents
Sludge drying system and method Download PDFInfo
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- TW201641444A TW201641444A TW105100060A TW105100060A TW201641444A TW 201641444 A TW201641444 A TW 201641444A TW 105100060 A TW105100060 A TW 105100060A TW 105100060 A TW105100060 A TW 105100060A TW 201641444 A TW201641444 A TW 201641444A
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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
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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
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- 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
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
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Abstract
Description
本發明是關於污泥乾化領域,具體而言,是關於一種污泥乾化系統,用來乾燥含水率大約90%以上的污泥,從而獲得含水率在大約40%以下的污泥,以及一種利用這種污泥乾化系統進行污泥乾化的方法。 The present invention relates to the field of sludge drying, and more particularly to a sludge drying system for drying sludge having a moisture content of about 90% or more, thereby obtaining sludge having a moisture content of about 40% or less, and A method for sludge drying using the sludge drying system.
在現代城市中污水的處理是必不可少的,而隨著污水的處理會產生大量的污泥。目前,污水處理廠一般採用濃縮或脫水的方法對污泥進行前期處理,以便將污泥的含水率從90%以上降低到60-80%,之後對經處理過的污泥進行填埋、固化或乾化處理。填埋易使污泥發酵而出現二次污染環境的問題,而現有的固化或乾化設備通常乾化效率低且能源消耗大,難以實現在降低污泥含水率的同時也能處理大量的污泥。通常需要經過多個污泥處理過程才能將污泥的含水率從90%以上降低到40-60%,而這些污泥處理過程都是在各個設備中單獨完成的。這些污泥處理設備具有體積大、佈置分散、功能單一以及能源消耗大等缺陷。 The treatment of sewage in modern cities is indispensable, and a large amount of sludge is produced as the sewage is treated. At present, the sewage treatment plant generally adopts the method of concentration or dehydration to pre-treatment the sludge to reduce the water content of the sludge from above 90% to 60-80%, and then the landfill and solidification of the treated sludge. Or dry processing. Landfilling is easy to ferment sludge and cause secondary pollution. However, existing curing or drying equipment usually has low drying efficiency and high energy consumption, and it is difficult to achieve a large amount of pollution while reducing sludge moisture content. mud. It is usually necessary to go through multiple sludge treatment processes to reduce the moisture content of the sludge from above 90% to 40-60%, and these sludge treatment processes are performed separately in each equipment. These sludge treatment equipment have the defects of large volume, scattered arrangement, single function and high energy consumption.
中國發明專利申請CN101186422A提出了一種封閉式多室流體化床污泥乾燥方法。這種方法中所採用的流體化床不僅消耗能源且效率很低,難以實現連續且大規模的污泥乾化處理。 Chinese invention patent application CN101186422A proposes a closed multi-chamber fluidized bed sludge drying method. The fluidized bed used in this method not only consumes energy but is also inefficient, making it difficult to achieve continuous and large-scale sludge drying.
中國實用新型專利CN203319838U提出了一種污泥固化處理攪拌機。這種攪拌機藉由將添加劑摻混到污泥中降低污泥的含水率,不僅增加了污泥的量而且也難以防止在填埋後污泥導致二次污染環境的問題。 The Chinese utility model patent CN203319838U proposes a sludge solidification treatment mixer. Such a mixer reduces the moisture content of the sludge by blending the additive into the sludge, thereby not only increasing the amount of sludge but also preventing the secondary pollution of the sludge after the landfill.
由於污泥具有黏性強、易結塊、難破碎的特性,現有的污泥乾化設備難以實現對這類污泥進行大規模地乾化處理以降低污泥的含水率,而且沒有一種設備或系統能夠將來自污水處理廠的含水率90%以上的污泥直接轉化為含水率大約在40%以下的污泥。因此,需要提供這樣一種污泥乾化系統和方法實現上述目的。 Due to the strong viscosity, easy agglomeration and difficult to break the sludge, the existing sludge drying equipment is difficult to achieve large-scale drying of such sludge to reduce the moisture content of the sludge, and there is no equipment. Or the system can directly convert sludge from the sewage treatment plant with a water content of more than 90% into sludge with a moisture content of less than 40%. Therefore, there is a need to provide such a sludge drying system and method to achieve the above objectives.
針對現有技術中存在的缺陷,本發明提出了一種將各種污泥處理裝置集成在一起的污泥乾化系統以及利用這一系統進行污泥乾化的方法。這種污泥乾化系統可以將來自污水處理廠的污泥的含水率從90%以上直接降低到40%以下,以實現污泥從液態、塊體、碎塊、顆粒到粉粒的轉變,進而提高污泥的乾化效率。 In view of the deficiencies in the prior art, the present invention proposes a sludge drying system in which various sludge treatment apparatuses are integrated, and a method of sludge drying using the system. The sludge drying system can directly reduce the moisture content of the sludge from the sewage treatment plant from above 90% to below 40%, so as to realize the transformation of the sludge from liquid, block, fragments, particles to particles. In turn, the drying efficiency of the sludge is improved.
利用污泥乾化系統中的輸送裝置、調質裝置、脫水裝置、乾化裝置和鼓風裝置可以對含水率90%以 上的液態污泥進行乾化,以將污泥的含水率降低到大約40%以下,從而可以獲得在填埋後不會因水浸而導致二次污泥的粉粒狀的污泥。另外,可以在本發明的污泥乾化系統中結合前置調質裝置和濃縮裝置以對液態污泥實施前置調質處理和濃縮處理,從而可以從污泥中分離出更多的水分,經過濃縮的液態污泥再藉由污泥乾化系統中的上述各個裝置進行乾化處理,從而可以獲得粉粒狀的污泥。 Using the conveying device, the tempering device, the dehydrating device, the drying device and the air blowing device in the sludge drying system, the water content can be 90% The liquid sludge is dried to reduce the water content of the sludge to about 40% or less, so that sludge of a granular form which does not cause secondary sludge due to water immersion after landfill can be obtained. In addition, the pre-conditioning apparatus and the concentrating apparatus can be combined with the pre-conditioning apparatus and the concentrating apparatus in the sludge drying system of the present invention to perform pre-conditioning treatment and concentration treatment on the liquid sludge, so that more moisture can be separated from the sludge. The concentrated liquid sludge is further subjected to a drying treatment by the above respective devices in the sludge drying system, whereby powdery granular sludge can be obtained.
利用結合到本發明的污泥乾化系統中的破碎裝置可以將脫水後的尺寸不同的污泥塊體破碎成尺寸均勻的污泥碎塊,以使污泥在乾化過程中達到均衡的乾燥效果。 The sludge block with different sizes after dewatering can be crushed into sludge pieces of uniform size by using the crushing device incorporated in the sludge drying system of the present invention, so that the sludge can be evenly dried during the drying process. effect.
利用結合到本發明的污泥乾化系統中的引風裝置、加熱裝置以及熱交換裝置,可以提高乾化效率並節約能源。 With the air introducing device, the heating device, and the heat exchange device incorporated in the sludge drying system of the present invention, the drying efficiency can be improved and energy can be saved.
藉由設置在乾化裝置的第一乾燥室內的翻動裝置的翻動組件的翻動以及翻動組件上的葉片或棘齒對污泥的剪切和破碎,使污泥與乾燥氣體充分地接觸,從而解決了污泥在乾燥過程中存在的內、外部乾燥程度不均勻的問題,其中,乾燥氣體藉由設置在用於分隔第一乾燥室和第二乾燥室的分隔壁上形成的連通口或連通口上方的橋形件與分隔壁形成的側開口由第二乾燥室進入到第一乾燥室,而且,翻動組件的葉片或棘齒的前端對連通口或側開口附近的污泥的刮除不僅提高了乾燥氣體與污泥的接觸頻率,也促進了污泥從碎塊向顆粒狀和粉粒狀轉變,加快了 污泥的乾燥。 The sludge is sufficiently contacted with the dry gas by the flipping of the flipping assembly of the flipping device provided in the first drying chamber of the drying device and the shearing and breaking of the sludge by the blades or ratchets on the flipping assembly, thereby solving the problem The problem of uneven internal and external drying of the sludge during the drying process, wherein the drying gas is formed by a communication port or a communication port formed on the partition wall for separating the first drying chamber and the second drying chamber The side opening formed by the upper bridge and the partition wall enters the first drying chamber from the second drying chamber, and the blade of the flipping assembly or the front end of the ratchet not only improves the scraping of the sludge near the communication port or the side opening The frequency of contact between the drying gas and the sludge also promotes the transformation of the sludge from the fragments to the granular and granular particles, which accelerates Drying of the sludge.
本發明的污泥乾化系統具有乾化效率高、能源消耗低、占地面積小以及適應性強的特點,使用者可以根據需要將本發明的污泥乾化系統中的污泥處理裝置與污水處理廠中現有的污泥處理裝置進行結合,以降低成本。 The sludge drying system of the invention has the characteristics of high drying efficiency, low energy consumption, small floor space and strong adaptability, and the user can use the sludge treatment device in the sludge drying system of the invention as needed. The existing sludge treatment plants in the wastewater treatment plant are combined to reduce costs.
本發明的利用污泥乾化系統進行污泥乾燥的方法藉由調質、脫水和乾燥過程可以顯著降低污泥的含水率。藉由在乾化裝置的第一乾燥室內設置的翻動裝置的翻動組件不斷地剪切、破碎和翻動污泥以及其葉片或棘齒的前端刮除連通口或側開口附近的污泥使得乾燥氣體可以順暢地進入第一乾燥室,從而提高了污泥的乾化效率並降低了能源消耗。 The method for sludge drying using the sludge drying system of the present invention can significantly reduce the moisture content of the sludge by quenching, dehydrating and drying processes. Drying gas is continuously scraped, crushed and turned over by the flipping assembly of the flipping device provided in the first drying chamber of the drying device, and the front end of the blade or the ratchet scrapes off the sludge near the communication port or the side opening It can smoothly enter the first drying chamber, thereby improving the drying efficiency of the sludge and reducing the energy consumption.
本發明提供一種污泥乾化系統,所述污泥乾化系統包括用於接收和輸送污泥的輸送裝置;調質裝置,所述調質裝置位於所述輸送裝置的下游,且在其中將來自輸送裝置的所述污泥與調質劑混合,以改善所述污泥的脫水性;脫水裝置,所述脫水裝置將來自上游的所述污泥進行脫水,以降低所述污泥的含水率;乾化裝置,所述乾化裝置包括殼體,其中,所述殼體具有分隔壁,以將所述殼體內的空間分隔成第一乾燥室和第二乾燥室,且在所述分隔壁上形成用於連通所述第一乾燥室和所述第二乾燥室的至少一個連通口;設置在所述第一乾燥室的上部的用於要乾化的污泥的進料口和用於乾化污泥後的乾燥氣體的排氣口,和設置在所述第一乾燥室的周向壁上的用於乾化後的 污泥的出料口;設置在所述第二乾燥室的側壁上的至少一個用於要乾燥污泥的乾燥氣體的進氣口;設置在所述第一乾燥室內的用於翻動污泥的翻動裝置,所述翻動裝置包括轉動軸和設置在所述轉動軸上的至少一個翻動組件,其中,所述至少一個翻動組件可刮除所述至少一個連通口附近的污泥;以及鼓風裝置,其中,所述鼓風裝置經過所述至少一個進氣口與所述第二乾燥室連通。 The present invention provides a sludge drying system comprising a conveying device for receiving and conveying sludge, a tempering device, the tempering device being located downstream of the conveying device, and The sludge from the conveying device is mixed with a tempering agent to improve the dehydration of the sludge; and a dewatering device that dehydrates the sludge from the upstream to reduce the water content of the sludge a drying device comprising a casing, wherein the casing has a partition wall to divide a space within the casing into a first drying chamber and a second drying chamber, and in the At least one communication port for communicating the first drying chamber and the second drying chamber is formed on the partition wall; a feed port for the sludge to be dried and disposed at an upper portion of the first drying chamber An exhaust port of the drying gas after drying the sludge, and a drying chamber disposed on the circumferential wall of the first drying chamber for drying a discharge port of the sludge; at least one inlet port for drying gas to be dried sludge disposed on a side wall of the second drying chamber; and a tumbling sludge for setting the first drying chamber a flipping device comprising a rotating shaft and at least one flipping assembly disposed on the rotating shaft, wherein the at least one flipping assembly scrapes sludge adjacent to the at least one communication port; and the air blowing device Wherein the air blowing device is in communication with the second drying chamber through the at least one air inlet.
根據上述方案,其還包括破碎裝置,所述破碎裝置位於所述脫水裝置的下游並位於所述乾化裝置的上游,其中,所述破碎裝置將來自上游的經過脫水的污泥進行破碎,以利於所述污泥的乾化處理。 According to the above aspect, further comprising a crushing device located downstream of the dewatering device and upstream of the drying device, wherein the crushing device crushes the dewatered sludge from the upstream to Conducive to the drying treatment of the sludge.
根據上述各個方案,其還包括在所述第二乾燥室的端壁上設置至少一個清理口。 According to various aspects described above, it further includes providing at least one cleaning opening on an end wall of the second drying chamber.
根據上述各個方案,其還包括設置在所述第二乾燥室內的排料裝置,用於將從所述第一乾燥室洩漏到所述第二乾燥室內的污泥排出所述清理口。 According to each of the above aspects, it further includes a discharge device disposed in the second drying chamber for discharging sludge leaking from the first drying chamber into the second drying chamber to the cleaning port.
根據上述各個方案,所述調質裝置包括混合器,在所述混合器中將調質劑與污泥進行混合,以改善污泥的脫水性。 According to each of the above aspects, the tempering apparatus includes a mixer in which a tempering agent is mixed with sludge to improve dewatering of the sludge.
根據上述各個方案,其還包括前置調質裝置,所述前置調質裝置位於所述輸送裝置的下游,且在其中將污泥與調質劑混合,以促進污泥的沉澱;以及濃縮裝置,所述濃縮裝置位於所述調質裝置的上游,用於將前置調質的污泥與水進行分離,以降低污泥的含水率。 According to each of the above aspects, the method further includes a pre-conditioning apparatus, the pre-conditioning apparatus is located downstream of the conveying apparatus, and mixes the sludge with the tempering agent to promote sedimentation of the sludge; The device is located upstream of the tempering device for separating the pre- conditioned sludge from water to reduce the moisture content of the sludge.
根據上述各個方案,所述脫水裝置包括板框壓濾機,在所述板框壓濾機中將調質的污泥加壓過濾,以獲得低含水率的固態污泥。 According to each of the above aspects, the dewatering apparatus includes a plate and frame filter press, and the tempered sludge is pressure-filtered in the plate and frame filter press to obtain a solid sludge having a low water content.
根據上述各個方案,其還包括用於加熱乾燥氣體的加熱裝置,其中,所述加熱裝置位於所述鼓風裝置的上游或下游。 According to each of the above aspects, it further includes a heating device for heating the drying gas, wherein the heating device is located upstream or downstream of the air blowing device.
根據上述各個方案,其還包括引風裝置,其中,所述引風裝置經過所述排氣口與所述第一乾燥室連通。 According to the above various aspects, it further includes an air guiding device, wherein the air guiding device communicates with the first drying chamber through the exhaust port.
根據上述各個方案,所述乾化裝置配備熱交換裝置,所述熱交換裝置的冷端與所述引風裝置連通,且其熱端與所述鼓風裝置連通,用以交換從所述排氣口出來的尾氣中的熱量。 According to the above various aspects, the drying device is provided with a heat exchange device, the cold end of the heat exchange device is in communication with the air guiding device, and the hot end thereof is in communication with the air blowing device for exchanging from the row The heat in the exhaust from the gas outlet.
根據上述各個方案,所述至少一個污泥翻動裝置的所述至少一個翻動組件具有從所述轉動軸徑向向外延伸的至少一個葉片或棘齒,其中,在所述轉動軸旋轉時所述至少一個翻動組件的所述至少一個葉片或棘齒的前端或者安裝在葉片或棘齒的前端的刮除部件可以刮除或部分刮除所述至少一個連通口內或附近的污泥。 According to the above various aspects, the at least one flipping assembly of the at least one sludge turning device has at least one blade or ratchet extending radially outward from the rotating shaft, wherein the rotating shaft rotates when the rotating shaft rotates A front end of the at least one blade or ratchet of the at least one flip assembly or a scraping member mounted at a front end of the blade or ratchet may scrape or partially scrape the sludge in or near the at least one communication port.
根據上述各個方案,其還包括設置在所述至少一個連通口上方的橋形件,其中,所述橋形件與所述分隔壁之間形成側開口,以形成從所述至少一個連通口到所述側開口的彎曲路徑。 According to the above various aspects, further comprising a bridge disposed above the at least one communication port, wherein a side opening is formed between the bridge and the partition wall to form from the at least one communication port The curved path of the side opening.
根據上述各個方案,所述至少一個翻動組件 與所述橋形件相對應,以便所述至少一個翻動組件的所述至少一個葉片或棘齒的前端或者安裝在葉片或棘齒上的刮除部件的前端的側邊緣可以刮除或部分刮除所述側開口附近的污泥。 According to each of the above aspects, the at least one flipping component Corresponding to the bridge member, such that the front end of the at least one blade or ratchet of the at least one flipping assembly or the side edge of the front end of the scraping member mounted on the blade or ratchet may be scraped or partially scraped In addition to the sludge near the side opening.
根據上述各個方案,所述分隔壁具有下凹的上表面。 According to each of the above aspects, the partition wall has a concave upper surface.
根據上述各個方案,所述至少一個包括至少兩個污泥翻動裝置,其中每個污泥翻動裝置包括多個翻動組件,且所述多個翻動組件中的每個的所述至少一個葉片或棘齒的前端或安裝在所述至少一個葉片或棘齒的前端的刮除部件可刮除所述至少一個連通口內或附近的污泥,其中,所述至少兩個污泥翻動裝置中的其中一個污泥翻動裝置的所述多個翻動組件與另一個的所述多個翻動組件彼此交錯佈置。 According to each of the above aspects, the at least one includes at least two sludge turning devices, wherein each of the sludge turning devices includes a plurality of flipping assemblies, and the at least one blade or spine of each of the plurality of flipping assemblies A front end of the tooth or a scraping member mounted at a front end of the at least one blade or ratchet may scrape sludge in or near the at least one communication port, wherein the at least two of the sludge turning devices The plurality of flipping assemblies of one sludge turning device and the plurality of flipping assemblies of the other are staggered with each other.
本發明還提供一種採用上述方案中任一項所述的污泥乾化系統進行污泥乾化的方法,所述方法包括以下步驟:藉由輸送裝置將液態污泥輸送到調質裝置,在調質裝置中使所述污泥與調質劑混合,以改善所述污泥的脫水性;將調質的污泥輸送到脫水裝置內進行脫水,以獲得固態污泥;藉由進料口將所述固態污泥的塊體送入乾化裝置的第一乾燥室內;使設置在所述第一乾燥室內的至少一個污泥翻動裝置運行,其中,所述至少一個污泥翻動裝置上的轉動軸使至少一個翻動組件轉動,從而所述至少一個翻動組件上的至少一個葉片或棘齒的前端可刮除位於所述 第一乾燥室和第二乾燥室之間的分隔壁上形成的至少一個連通口附近的污泥;和藉由鼓風裝置使乾燥氣體進入所述第二乾燥室內並藉由所述至少一個連通口進入所述第二乾燥室。 The present invention also provides a method for sludge drying by using the sludge drying system according to any one of the above aspects, the method comprising the steps of: conveying the liquid sludge to the tempering device by the conveying device, In the quenching and tempering device, the sludge is mixed with a tempering agent to improve the dehydration property of the sludge; the tempered sludge is sent to a dehydration device for dehydration to obtain solid sludge; Feeding the solid sludge block into a first drying chamber of the drying device; operating at least one sludge turning device disposed in the first drying chamber, wherein the at least one sludge turning device Rotating the shaft to rotate the at least one flipping assembly such that the front end of the at least one vane or ratchet on the at least one flipping assembly is scrapable Sludge near at least one communication port formed on the partition wall between the first drying chamber and the second drying chamber; and introducing a drying gas into the second drying chamber by the air blowing device and communicating by the at least one The mouth enters the second drying chamber.
根據上述方案,其還包括破碎步驟:將脫水的固態污泥送入破碎裝置,且在所述破碎裝置中將所述污泥的塊體破碎成碎塊。 According to the above aspect, it further comprises a crushing step of feeding the dehydrated solid sludge into a crushing device, and crushing the block of the sludge into pieces in the crushing device.
根據上述各個方案,其還包括將所述液態污泥送入前置調質裝置,在所述前置調質裝置中使所述污泥與調質劑混合,以促進所述液態污泥的沉澱;以及將前置調質的污泥送入濃縮裝置,在所述濃縮裝置中使所述前置調質的污泥與水進行分離,以獲得低含水率的污泥。 According to each of the above aspects, the method further includes feeding the liquid sludge into a pre-conditioning apparatus, and mixing the sludge with a tempering agent in the pre-conditioning apparatus to promote the liquid sludge. Precipitating; and pre-treating the sludge into a concentrating device, wherein the pre- conditioned sludge is separated from water to obtain a sludge having a low water content.
根據上述各個方案,其還包括加熱步驟:利用所述加熱裝置對離開或進入所述鼓風裝置的乾燥氣體加熱。 According to each of the above aspects, it further includes a heating step of heating the drying gas exiting or entering the air blowing device with the heating device.
根據上述各個方案,其還包括引風裝置,其中,所述引風裝置經過所述排氣口與所述第一乾燥室連通。 According to the above various aspects, it further includes an air guiding device, wherein the air guiding device communicates with the first drying chamber through the exhaust port.
根據上述各個方案,其還包括熱交換步驟:使離開引風裝置的尾氣經過所述熱交換裝置的冷端,且使進入與所述鼓風裝置的乾燥氣體經過所述熱交換裝置的熱端,以再利用從所述排氣口出來的尾氣中的熱量。 According to the above various aspects, the method further includes a heat exchange step of passing the exhaust gas leaving the air introducing means through the cold end of the heat exchange means and passing the drying gas entering the air blowing means through the hot end of the heat exchange means To reuse heat from the exhaust gas from the exhaust port.
根據上述各個方案,其還包括在所述轉動軸旋轉時使所述至少一個污泥翻動裝置的所述至少一個翻動 組件上的至少一個葉片或棘齒的前端或安裝至少一個葉片或棘齒上的刮除部件的前端的側邊緣可刮除設置在所述至少一個連通口上方的至少一個橋形件與所述分隔壁之間形成的側開口附近的污泥。 According to the above various aspects, the method further includes rotating the at least one of the at least one sludge turning device when the rotating shaft rotates a front end of at least one blade or ratchet on the assembly or a side edge of a front end of the scraping member on which the at least one blade or ratchet is mounted may scrape at least one bridge disposed above the at least one communication port and the Sludge near the side opening formed between the partition walls.
根據上述各個方案,其還包括藉由設置在所述第二乾燥室內的排出裝置將從所述第一乾燥室洩漏到所述第二乾燥室內的污泥從清理口清除。 According to each of the above aspects, the method further includes removing sludge leaking from the first drying chamber into the second drying chamber from the cleaning port by a discharge device disposed in the second drying chamber.
1‧‧‧污泥乾化系統 1‧‧‧Sludge drying system
2‧‧‧上殼體 2‧‧‧Upper casing
3‧‧‧上蓋(或蓋) 3‧‧‧Upper cover (or cover)
4‧‧‧分隔壁 4‧‧‧ partition wall
4a‧‧‧下殼體 4a‧‧‧ Lower case
5‧‧‧連通口 5‧‧‧Connected
6a‧‧‧第一乾燥室 6a‧‧‧First drying room
6b‧‧‧第二乾燥室 6b‧‧‧Second drying room
7、7a、7b‧‧‧翻動裝置 7, 7a, 7b‧‧‧ flipping device
8‧‧‧進料口 8‧‧‧ Feed inlet
8a‧‧‧進料步驟 8a‧‧‧feeding steps
9‧‧‧出料口 9‧‧‧Outlet
9a‧‧‧出料步驟 9a‧‧‧Drawing steps
10‧‧‧排氣口 10‧‧‧Exhaust port
12‧‧‧鼓風裝置 12‧‧‧Blowing device
12b‧‧‧鼓風步驟 12b‧‧‧Blasting steps
13‧‧‧引風裝置 13‧‧‧Air intake
13b‧‧‧引風步驟 13b‧‧‧Winding steps
15‧‧‧進氣口 15‧‧‧air inlet
15a‧‧‧清理口 15a‧‧‧Clean up
18‧‧‧齒輪或皮帶輪 18‧‧‧ Gears or pulleys
18b‧‧‧動力輸入件 18b‧‧‧Power input parts
101‧‧‧輸送裝置 101‧‧‧Conveyor
101a‧‧‧輸送步驟 101a‧‧‧Transportation steps
102‧‧‧前置調質裝置 102‧‧‧Pre-conditioning equipment
102a‧‧‧前置調質步驟 102a‧‧‧Pre-conditioning steps
103‧‧‧濃縮裝置 103‧‧‧concentrator
103a‧‧‧濃縮步驟 103a‧‧‧ Concentration step
104‧‧‧調質裝置 104‧‧‧Qualification device
104a‧‧‧調質步驟 104a‧‧‧Qualification steps
105‧‧‧脫水裝置 105‧‧‧Dehydration device
105a‧‧‧脫水步驟 105a‧‧‧ Dehydration step
106‧‧‧破碎裝置 106‧‧‧Crushing device
106a‧‧‧破碎步驟 106a‧‧‧Fracture steps
107‧‧‧乾化裝置 107‧‧‧Drying device
107a‧‧‧乾化步驟 107a‧‧‧Drying steps
107a1‧‧‧翻動和刮除步驟 107a1‧‧‧Flip and scrape steps
107a2‧‧‧二次乾燥或再乾燥步驟 107a2‧‧‧Second drying or re-drying steps
108‧‧‧加熱裝置 108‧‧‧ heating device
109‧‧‧熱交換裝置 109‧‧‧Heat exchange unit
109a‧‧‧熱量回收步驟 109a‧‧‧heat recovery steps
401‧‧‧橋形件 401‧‧‧ Bridge
402‧‧‧側開口 402‧‧‧Side opening
701a、701b‧‧‧轉動軸 701a, 701b‧‧‧ rotating shaft
702、702a、702b‧‧‧翻動組件 702, 702a, 702b‧‧‧ flip components
703a、703b‧‧‧葉片或棘齒 703a, 703b‧‧‧ blades or ratchets
X‧‧‧連通口5的長度方向 X‧‧‧ Length direction of the communication port 5
G‧‧‧殼體的縱向方向 G‧‧‧ longitudinal direction of the casing
下面將結合附圖以及具體實施例詳細說明本發明的較佳實施方案的構造、優點以及技術效果,其中:圖1是本發明的污泥乾化系統的示意圖;圖2是圖1所示的污泥乾化系統中的乾化裝置的縱向剖視圖;圖3是圖2中污泥乾化裝置的橫向剖視圖;圖4是圖2中的乾化裝置的內部構造的立體示意圖;圖5是圖1中圈出的A部分的曲面的分隔壁的一部分上的橋形件放大的立體圖;圖6是圖1中圈出的A部分的放大視圖;圖7是在橫截於殼體的縱向方向取的圖6的分隔壁左剖視圖;圖8是本發明的污泥乾化過程的流程圖;以及圖9是圖8的污泥乾化過程中的乾化步驟的 示意圖。 The structure, advantages and technical effects of the preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments in which: FIG. 1 is a schematic view of the sludge drying system of the present invention; 3 is a longitudinal cross-sectional view of the drying device in the sludge drying system; FIG. 3 is a transverse cross-sectional view of the sludge drying device of FIG. 2; FIG. 4 is a perspective view showing the internal structure of the drying device of FIG. 2; 1 is an enlarged perspective view of the bridge member on a part of the partition wall of the curved portion A of FIG. 1; FIG. 6 is an enlarged view of a portion A circled in FIG. 1; FIG. 7 is a longitudinal direction transverse to the housing 6 is a left side cross-sectional view of the partition wall; FIG. 8 is a flow chart of the sludge drying process of the present invention; and FIG. 9 is a drying step of the sludge drying process of FIG. schematic diagram.
圖1示出了本發明的污泥乾化系統的較佳實施例,其中,污泥乾化系統1可以將污泥的含水率從大約90%以上降低到大約40%以下,從而獲得粉粒狀的污泥。 1 shows a preferred embodiment of the sludge drying system of the present invention, wherein the sludge drying system 1 can reduce the moisture content of the sludge from about 90% or more to less than about 40%, thereby obtaining the powder. Sludge.
污泥乾化系統1整體上包括輸送裝置、調質裝置(或二次調質裝置)、脫水裝置、乾化裝置和鼓風裝置,且還包括前置調質(或一次調質)裝置和濃縮裝置、破碎裝置等。本發明的污泥乾化系統1還可以包括引風裝置、加熱裝置和熱交換裝置。 The sludge drying system 1 integrally includes a conveying device, a tempering device (or a secondary tempering device), a dehydrating device, a drying device, and a blast device, and further includes a front tempering (or primary tempering) device and Concentration device, crushing device, etc. The sludge drying system 1 of the present invention may further include a drafting device, a heating device, and a heat exchange device.
通常來自污水處理設備的液態污泥的含水率是90%以上。在接收到液態污泥後,輸送裝置101可以如沿箭頭指示的方向藉由雙線表示的管道將液態污泥輸送到調質裝置或二次調質裝置104中。在調質裝置104中將調質劑與污泥進行混合,以改善污泥的脫水性,其中,調質劑可以預先放置到調質裝置104中,也可以在污泥進入調質裝置104同時或之後投放。例如,將污泥輸送到作為調質裝置104的混合器中並隨後添加無機調質劑,而這種無機調質劑有利於對污泥進行機械脫水。 The liquid sludge usually from sewage treatment equipment has a water content of 90% or more. After receiving the liquid sludge, the conveying device 101 can convey the liquid sludge to the tempering device or the secondary tempering device 104 by means of a pipe indicated by a double line in the direction indicated by the arrow. The tempering agent is mixed with the sludge in the tempering device 104 to improve the dewatering property of the sludge. The tempering agent may be placed in the tempering device 104 in advance, or the sludge may enter the tempering device 104 at the same time. Or later. For example, the sludge is conveyed to a mixer as a tempering device 104 and then an inorganic tempering agent is added, and this inorganic tempering agent facilitates mechanical dewatering of the sludge.
經調質後的污泥經過管道輸送到位於調質裝置下游的脫水裝置105,在脫水裝置105中對調質的污泥進行過濾,以分離出大量的水並形成固態的污泥或脫水的污泥。較佳地,在本發明中例如採用加壓與過濾的方法將 污泥中的水分離出,通常利用板框壓濾機使調質的污泥脫水,由此可以獲得含水率為大約40-60%的污泥,而所得到的污泥基本上為餅狀或塊狀,也即成形的塊狀體。 The tempered sludge is piped to a dewatering device 105 located downstream of the tempering device, and the tempered sludge is filtered in the dewatering device 105 to separate a large amount of water and form solid sludge or dehydrated sewage. mud. Preferably, in the present invention, for example, a method of pressurization and filtration will be employed. The water in the sludge is separated, and the quenched and tempered sludge is usually dehydrated by a plate and frame filter press, whereby sludge having a water content of about 40-60% can be obtained, and the obtained sludge is substantially in the form of a cake. Or a block, that is, a shaped block.
經過脫水的塊狀污泥藉由傳送裝置如管道、漏斗或傳送帶等被輸送到下游的乾化裝置107。在乾化裝置107中,塊狀污泥藉由翻動裝置的翻動、剪切和破碎以及與乾燥氣體的充分接觸而得以乾燥,最終成為含水率40%以下的粉粒狀的污泥。經乾燥後的污泥藉由設置在乾化裝置的出料口9排出。經過乾燥處理的這種污泥在填埋之後不會出現對環境的二次污染問題,而且如果用於育肥、製成建築材料等還可以實現資源的再利用。 The dehydrated bulk sludge is conveyed to the downstream drying device 107 by a conveying device such as a pipe, a funnel or a conveyor belt. In the drying device 107, the bulk sludge is dried by the turning, shearing, and crushing of the turning device and sufficient contact with the dry gas, and finally becomes a granular granular sludge having a water content of 40% or less. The dried sludge is discharged through a discharge port 9 provided in the drying device. The dried sludge does not cause secondary pollution to the environment after landfilling, and can be reused if used for fattening, building materials, and the like.
為了更好地發揮乾化裝置的作用,也可以在脫水裝置105的下游設置破碎裝置。經脫水後的塊狀污泥由傳送裝置輸送到破碎裝置106。破碎裝置106將來自上游的脫水裝置的塊狀污泥破碎成小塊體或碎塊,以利於乾燥。由於脫水後的塊狀污泥的塊體尺寸不均勻,因而在乾燥過程中不同尺寸的塊狀污泥可能導致各個塊體的乾燥程度不同。儘管現有的破碎裝置也可以對塊狀污泥進行破碎,但因污泥的脫水不充分,導致污泥的含水率較高,所以這種破碎裝置不僅不能獲得粒徑大致均勻的小塊體,而且也難以避免經破碎後的小塊體或團塊再次黏結成團。在本發明的污泥乾化系統1中所採用的破碎裝置可以有效地消除上述缺陷,即可以將塊狀污泥破碎成尺寸大小接近的碎塊。本發明的破碎裝置包括控料部件和破碎組件,其 中,藉由控料部件調整並控制進入破碎裝置的污泥的速度,使得破碎組件可以預定的速度對塊狀污泥進行破碎,從而獲得所希望的尺寸大致均勻的污泥的小塊體或碎塊。 In order to better exert the function of the drying device, a crushing device may be provided downstream of the dewatering device 105. The dewatered bulk sludge is conveyed by the conveying device to the crushing device 106. The crushing device 106 breaks the bulk sludge from the upstream dewatering device into small pieces or pieces to facilitate drying. Since the block size of the slug sludge after dewatering is not uniform, different sizes of slug sludge may cause different degrees of drying of the individual blocks during the drying process. Although the existing crushing device can also crush the bulk sludge, the sludge is not sufficiently dehydrated, resulting in a high moisture content of the sludge, so that the crushing device can not only obtain a small block having a substantially uniform particle size. Moreover, it is also difficult to prevent the broken small pieces or agglomerates from sticking again. The crushing device employed in the sludge drying system 1 of the present invention can effectively eliminate the above drawbacks, that is, the bulk sludge can be broken into pieces of similar size. The crushing device of the present invention comprises a control member and a crushing assembly, Adjusting and controlling the speed of the sludge entering the crushing device by the controlling member, so that the crushing assembly can crush the bulk sludge at a predetermined speed, thereby obtaining a small block of sludge of a desired uniform size or Pieces.
如圖1所示,在污泥乾化系統1中除了上述裝置外還設置有前置調質裝置102和濃縮裝置103。輸送裝置101可以將所接收的污泥如沿箭頭指示的方向藉由雙線表示的管道將污泥輸送到附圖左側的前置調質裝置(或一次調質裝置)102。在前置調質裝置102中藉由有機調質劑與液態污泥進行混合使污泥形成較大的絮凝體,以提高污泥的沉降性。將經前置調質後的污泥藉由管道輸送到前置調質裝置下游的濃縮裝置103,在濃縮裝置中,藉由沉降方式將污泥絮凝體與水分離,從而將濃縮後的液態污泥輸送到下游的調質裝置。濃縮裝置也可以是重力濃縮機、離心濃縮機或帶式濃縮機等形式的裝置。調質裝置(或二次調質裝置)104隨後將濃縮的污泥傳送到在各個裝置中以便按照上面提到的次序實施後續的污泥處理過程。 As shown in Fig. 1, in the sludge drying system 1, in addition to the above-described devices, a pre-conditioning device 102 and a concentration device 103 are provided. The conveying device 101 can convey the received sludge to the front tempering device (or primary tempering device) 102 on the left side of the drawing by a pipe indicated by a double line in the direction indicated by the arrow. In the pre-conditioning apparatus 102, the organic tempering agent is mixed with the liquid sludge to form a larger floc to improve the sedimentation property of the sludge. The pre-treated and tempered sludge is piped to a concentrating device 103 downstream of the pre-conditioning device, and in the concentrating device, the sludge floc is separated from the water by sedimentation, thereby concentrating the liquid. The sludge is transported to a downstream quenching and tempering device. The concentrating device may also be a device in the form of a gravity concentrator, a centrifugal concentrator or a belt concentrator. The tempering unit (or secondary tempering unit) 104 then transfers the concentrated sludge to the respective units to carry out the subsequent sludge treatment process in the order mentioned above.
在圖2和3中分別以縱向和橫向剖開的形式示出了圖1所示的污泥乾化系統1中的乾化裝置107的一個較佳實施例。乾化裝置107是一種單體形式的底部乾燥式污泥乾化裝置,且包括第一乾燥室6a、第二乾燥室6b以及將第一乾燥室6a和第二乾燥室6b分開的分隔壁4。 在分隔壁4上形成有連通第一乾燥室6a和第二乾燥室6b的連通口5,以使乾燥氣體經過連通口5進入第一乾燥室 6a內並對其中的污泥進行乾燥。 A preferred embodiment of the drying unit 107 of the sludge drying system 1 shown in Fig. 1 is shown in Figs. 2 and 3, respectively, in longitudinal and transverse cross-sections. The drying device 107 is a bottom-type sludge drying device in a monomer form, and includes a first drying chamber 6a, a second drying chamber 6b, and a partition wall 4 separating the first drying chamber 6a and the second drying chamber 6b. . A communication port 5 communicating with the first drying chamber 6a and the second drying chamber 6b is formed on the partition wall 4 to allow the drying gas to enter the first drying chamber through the communication port 5. The sludge is dried in 6a.
圖2示出了本發明的底部乾燥式污泥乾化裝置的一個較佳實施例,而圖3是圖1中污泥乾化裝置的橫向剖視圖,其中示意性地表示了一種單體形式的污泥乾化裝置。底部乾燥式污泥乾化裝置107包括殼體,且殼體包括上殼體2、下殼體4a和上蓋(或蓋)3。上殼體2的底部用作將殼體的內部空間分隔成第一乾燥室6a和第二乾燥室6b的分隔壁4。其中,上殼體2與上蓋3構成第一乾燥室6a,而下殼體4a與上殼體2的底部即分隔壁構成第二乾燥室6b。在分隔壁4上形成用於連通第一乾燥室6a和第二乾燥室6b的連通口5,以使乾燥氣體能夠從第二乾燥室6b進入到第一乾燥室6a中。如圖所示,儘管第一乾燥室6a和第二乾燥室6b是上下佈置的,但也可以有其它佈置形式。然而,殼體可以由多個部件或多種方式構造而成,例如,圖示出的上殼體2的側壁與分隔壁4可以分開製造,其中,可以將板狀部件用作分隔板以替代分隔壁並將分隔板安裝在側壁上,且也可以將側壁、分隔板和下殼體4a組裝在一起。另外,還可以將下殼體4a與分隔壁4一體形成,並取消下殼體的底部,將下殼體4a設置在地面B上等等。殼體的形狀是長方形的,但也可以是正方形、多邊形、橢圓形或其它形狀。 Figure 2 shows a preferred embodiment of the bottom dry sludge drying apparatus of the present invention, and Figure 3 is a transverse cross-sectional view of the sludge drying apparatus of Figure 1, schematically showing a single form Sludge drying device. The bottom dry sludge drying device 107 includes a casing, and the casing includes an upper casing 2, a lower casing 4a, and an upper cover (or cover) 3. The bottom of the upper casing 2 serves as a partition wall 4 that partitions the internal space of the casing into the first drying chamber 6a and the second drying chamber 6b. The upper casing 2 and the upper cover 3 constitute a first drying chamber 6a, and the lower casing 4a and the bottom of the upper casing 2, that is, the partition wall constitute a second drying chamber 6b. A communication port 5 for communicating the first drying chamber 6a and the second drying chamber 6b is formed on the partition wall 4 to enable the drying gas to enter the first drying chamber 6a from the second drying chamber 6b. As shown, although the first drying chamber 6a and the second drying chamber 6b are arranged one above the other, other arrangements are possible. However, the housing may be constructed of a plurality of components or a plurality of ways, for example, the illustrated side wall of the upper housing 2 may be manufactured separately from the partition wall 4, wherein the plate member may be used as a partition plate instead of The partition wall and the partition plate are mounted on the side wall, and the side wall, the partition plate, and the lower case 4a may also be assembled. Further, it is also possible to integrally form the lower casing 4a with the partition wall 4, and to cancel the bottom of the lower casing, the lower casing 4a on the floor B, and the like. The shape of the housing is rectangular, but it can also be square, polygonal, elliptical or other shapes.
如圖所示,在殼體的上蓋3上分別設有用於使待乾燥或要乾燥的污泥進入第一乾燥室的進料口8和用於排出乾燥污泥後的尾氣或乾燥氣體的排氣口10,而存 遠離進料口8的分隔壁4附近的上殼體2的端壁上設有用於乾燥後的污泥的出料口9。在另外的實施例中,可以根據需要將用於第一乾燥室的進料口8和排氣口10設置在上殼體2和上蓋3的其中一個上的任意位置,也即第一乾燥室6a的上部分的任意位置。同樣,出料口9可以設置在上殼體2的包括側壁和端壁的周向壁的任意位置,也即第一乾燥室6a的周向壁的任意位置。 As shown in the figure, on the upper cover 3 of the casing, a feed port 8 for allowing the sludge to be dried or dried to enter the first drying chamber and a row of exhaust gas or dry gas for discharging the dried sludge are respectively provided. Air port 10, while A discharge port 9 for the dried sludge is provided on the end wall of the upper casing 2 near the partition wall 4 of the feed port 8. In other embodiments, the feed port 8 and the exhaust port 10 for the first drying chamber may be disposed at any position on one of the upper casing 2 and the upper cover 3, that is, the first drying chamber, as needed. Any position of the upper part of 6a. Likewise, the discharge opening 9 can be provided at any position of the circumferential wall of the upper casing 2 including the side walls and the end walls, that is, any position of the circumferential wall of the first drying chamber 6a.
圖4示出了圖1的污泥乾化裝置的內部構造。在第一乾燥室6a的底部即分隔壁4上形成兩排連通口5且在每排中有多個間隔開佈置的連通口5,但在其中一排的多個連通口的每個連通口上方設有橋形件401。除了圖示出的矩形,連通口5可以有各種不同的形狀,例如梯形、長方形、三角形、拱形、圓形等等。每個連通口5的長度方向X與殼體的縱向方向G交叉,較佳為相互垂直,因此,成排的多個連通口5與殼體的縱向方向G交叉或大致平行。 Fig. 4 shows the internal configuration of the sludge drying device of Fig. 1. Two rows of communication ports 5 are formed at the bottom of the first drying chamber 6a, that is, the partition wall 4, and a plurality of spaced-apart communication ports 5 are arranged in each row, but each of the plurality of communication ports in one of the rows is connected. A bridge 401 is provided above. In addition to the illustrated rectangular shape, the communication port 5 can have various shapes such as a trapezoid, a rectangle, a triangle, an arch, a circle, and the like. The longitudinal direction X of each of the communication ports 5 intersects with the longitudinal direction G of the casing, preferably perpendicular to each other, and therefore, the plurality of communication ports 5 in a row intersect or substantially parallel with the longitudinal direction G of the casing.
在第一乾燥室內沿殼體的縱向方向G平行設置兩個用於翻動污泥的翻動裝置7a、7b。由於兩個翻動裝置7a、7b具有相同或類似的構造,因此,僅對其中一個翻動裝置如翻動裝置7a進行詳細描述。參見圖2-4翻動裝置7a具有轉動軸701a和固定在轉動軸701a上用於翻動污泥的翻動組件702a。翻動組件702a包括有四個葉片或棘齒703a,且每個葉片或棘齒703a從轉動軸701a徑向地向外延伸。然而,每個翻動組件702a的多個葉片或 棘齒703a從轉動軸701a延伸出的長度可以彼此不相同,而且多個翻動組件702a中的至少一個翻動組件可以有長度較長的葉片或棘齒,而其它翻動組件可以有長度較短的葉片或棘齒。較佳地,在轉動軸701a上的多個翻動組件702a的每個翻動組件分別與多個連通口5中的每個連通口彼此對應,且通常翻動組件上的葉片或棘齒703a的頂端面對連通口5,且葉片或棘齒703a的長度構形成使它的前端或頂端可以刮除連通口內或附近的污泥,以便第二乾燥室6b內的乾燥氣體可以順暢地藉由連通口5進入第一乾燥室6a。 Two tumbling means 7a, 7b for tumbling the sludge are arranged in parallel in the longitudinal direction G of the housing in the first drying chamber. Since the two flipping devices 7a, 7b have the same or similar configuration, only one of the flipping devices such as the flipping device 7a will be described in detail. Referring to Figures 2-4, the flipping device 7a has a rotating shaft 701a and a flipping assembly 702a fixed to the rotating shaft 701a for turning the sludge. The flip assembly 702a includes four vanes or ratchets 703a, and each vane or ratchet 703a extends radially outward from the rotational axis 701a. However, each of the blades of the flipping assembly 702a or The lengths of the ratchet teeth 703a extending from the rotating shaft 701a may be different from each other, and at least one of the plurality of flipping assemblies 702a may have longer length blades or ratchets, while other flipping assemblies may have shorter length blades. Or ratchet. Preferably, each flipping assembly of the plurality of flipping assemblies 702a on the rotating shaft 701a respectively corresponds to each of the plurality of communicating ports 5, and generally the tip end surface of the blade or ratchet 703a on the flipping assembly The communication port 5 is formed, and the length of the blade or the ratchet 703a is configured such that its front end or the tip end can scrape the sludge in or near the communication port, so that the dry gas in the second drying chamber 6b can smoothly pass through the communication port. 5 enters the first drying chamber 6a.
雖然乾燥氣體(如箭頭所示)藉由分隔壁4上的連通口5從第二乾燥室6b進入第一乾燥室6a,並在與污泥相互作用後由排氣口10排出,以增加乾燥氣體與污泥接觸的機會。然而,當待乾燥的污泥經過進料口8投放到第一乾燥室6a內並堆放在分隔壁4上之後,隨著翻動裝置7a、7b的翻動組件702a、702b的翻動以及乾燥氣體的作用,一部分污泥會藉由連通口5從第一乾燥室6a掉落或洩漏到第二乾燥室6b中。為了減少污泥的洩漏,將橋形件401設置在連通口5的上方,以便利用橋形件401來阻擋污泥經過連通口向第二乾燥室6b的洩漏。如圖所示,在另一排的多個連通口的每一個上方設有橋形件401。橋形件401設置成在連通口的長度方向X上跨過連通口5,並與連通口5的長度方向大致平行。橋形件401的長度比連通口5的長度長,從而橋形件401可以像橋一 樣在連通口5的長度方向上跨置在連通口5的上方,且其兩端分別固定在連通口的端邊緣附近的分隔壁4上。由於橋形件401的中間段位於連通口5的上方,從而在橋形件401與分隔壁4之間形成側開口402,且可以在橋形件401的一側形成側開口402或在其每一側形成一個側開口402。因此,側開口402的開口方向與轉動軸的軸向方向或殼體的縱向方向G大致平行。連通口5的上方的橋形件401有利於減少污泥從第一乾燥室6a掉落或洩漏到第二乾燥室6b,但堆積在側開口附近的污泥也干擾了乾燥氣體從第二乾燥室6b進入到第一乾燥室6a內。為了促進乾燥氣體的流動,翻動裝置7b的翻動組件702b的每個構形成它的葉片或棘齒703b的前端或者前端的側邊緣可以刮除橋形件401的側開口402附近的污泥。可以根據分隔壁4上每排中的多個連通口或橋形件的彼此間隔距離來確定翻動裝置7a、7b的翻動組件702a、702b在轉動軸701a、701b上的間隔,以便在轉動軸轉動時每個連通口或橋形件附近污泥可以由翻動組件的葉片或棘齒的前端刮除。總之,連通口或橋形件在分隔壁上的位置與翻動組件在轉動軸上的位置相關聯,但翻動組件702a、702b的數量與連通口5或其上的橋形件401的數量不必一一對應。 Although the drying gas (shown by the arrow) enters the first drying chamber 6a from the second drying chamber 6b through the communication port 5 on the partition wall 4, and is discharged from the exhaust port 10 after interacting with the sludge to increase drying The opportunity for gas to come into contact with the sludge. However, after the sludge to be dried is discharged into the first drying chamber 6a through the feed port 8 and stacked on the partition wall 4, with the turning of the turning members 702a, 702b of the turning devices 7a, 7b and the action of the drying gas A part of the sludge may be dropped from the first drying chamber 6a or leaked into the second drying chamber 6b through the communication port 5. In order to reduce the leakage of the sludge, the bridge member 401 is disposed above the communication port 5 to block the leakage of the sludge through the communication port to the second drying chamber 6b by the bridge member 401. As shown, a bridge 401 is provided above each of the plurality of communication ports of the other row. The bridge 401 is disposed to straddle the communication port 5 in the longitudinal direction X of the communication port and is substantially parallel to the longitudinal direction of the communication port 5. The length of the bridge 401 is longer than the length of the communication port 5, so that the bridge 401 can be like a bridge The sample straddles the communication port 5 in the longitudinal direction of the communication port 5, and both ends thereof are respectively fixed to the partition wall 4 near the end edge of the communication port. Since the intermediate section of the bridge 401 is located above the communication port 5, a side opening 402 is formed between the bridge 401 and the partition wall 4, and a side opening 402 may be formed on one side of the bridge 401 or in each of them. One side opening 402 is formed on one side. Therefore, the opening direction of the side opening 402 is substantially parallel to the axial direction of the rotating shaft or the longitudinal direction G of the housing. The bridge 401 above the communication port 5 is advantageous for reducing the sludge from falling or leaking from the first drying chamber 6a to the second drying chamber 6b, but the sludge accumulated near the side opening also interferes with the drying gas from the second drying. The chamber 6b enters the first drying chamber 6a. In order to promote the flow of the drying gas, each of the flipping assembly 702b of the flipping device 7b is formed such that the leading end of the blade or ratchet 703b or the side edge of the leading end can scrape the sludge near the side opening 402 of the bridge 401. The spacing of the flipping assemblies 702a, 702b of the flipping devices 7a, 7b on the rotating shafts 701a, 701b can be determined in accordance with the distance between the plurality of communicating ports or the bridges in each row on the partition wall 4 to rotate on the rotating shaft The sludge near each communication port or bridge can be scraped off by the tips of the blades or ratchets of the flip assembly. In short, the position of the communication port or the bridge on the partition wall is associated with the position of the flipping assembly on the rotating shaft, but the number of the flipping assemblies 702a, 702b and the number of the communicating ports 5 or the bridges 401 thereon need not be one. A correspondence.
如圖3所示,位於第一乾燥室6a和第二乾燥室6b之間的分隔壁4具有下凹的上表面。在橫截於殼體的縱向方向G的方向上看,分隔壁4的上表面具有下凹的形狀,也即下凹的表面的曲線段從第一乾燥室6a朝第二 乾燥室6b向下突出,或者說,第一乾燥室6a具有內凹的底部。因此,分隔壁在殼體的縱向方向G顯示為下凹區域。如圖所示,曲面的分隔壁4面向兩個翻動裝置7a、7b的每一個翻動裝置的區域是下凹的,較佳為每個下凹區域與翻動組件702a或702b相對應,且下凹區域可以是圓弧形的。設置在連通口的上方的橋形件可以是板件,其中,包括平板、彎曲板、人字形板等。 As shown in Fig. 3, the partition wall 4 between the first drying chamber 6a and the second drying chamber 6b has a concave upper surface. The upper surface of the partition wall 4 has a concave shape when viewed in a direction transverse to the longitudinal direction G of the casing, that is, a curved section of the concave surface from the first drying chamber 6a toward the second The drying chamber 6b protrudes downward, or the first drying chamber 6a has a concave bottom. Therefore, the partition wall is shown as a recessed area in the longitudinal direction G of the casing. As shown, the area of the curved partition wall 4 facing each of the two flipping devices 7a, 7b is concave, preferably each recessed area corresponds to the flipping assembly 702a or 702b and is concave. The area can be circular. The bridge member disposed above the communication port may be a plate member including a flat plate, a curved plate, a herringbone plate, or the like.
圖5示出了在分隔壁上的橋形件的較佳實施例。平板的橋形件401位於連通口5的上方且在長度方向上與連通口相互平行,從而在橋形件401和分隔壁4之間形成側開口402。如果分隔壁4的下凹區域是圓弧形時,那麼側開口402的形狀就呈現月牙形。因此,側開口402的形狀取決於橋形件401和分隔壁的下凹區域的形狀。 Figure 5 shows a preferred embodiment of the bridge on the dividing wall. The bridge 401 of the flat plate is located above the communication port 5 and is parallel to the communication port in the longitudinal direction, thereby forming a side opening 402 between the bridge 401 and the partition wall 4. If the depressed area of the partition wall 4 is a circular arc shape, the shape of the side opening 402 assumes a crescent shape. Therefore, the shape of the side opening 402 depends on the shape of the bridge 401 and the depressed area of the partition wall.
圖6示出了圖2中圈出的A部分的放大剖視圖,其中,示出了翻動裝置的翻動組件正處於一個側開口附近。平板的橋形件401位於連通口5的上方且其兩側與分隔壁形成了兩個側開口402。如箭頭所示的乾燥氣體從分隔壁4的下方即第二乾燥室6b進入連通口5就需要轉向經過左或右側開口402才能到達第一乾燥室6a。因此,在第一乾燥室和第二乾燥室之間存在著從連通口到側開口的至少一個彎曲路徑,以便減少污泥從第一乾燥室向第二乾燥室的洩漏。翻動裝置7b的翻動組件702b的位置使得它的葉片或棘齒的前端可刮除在橋形件401與分隔壁4之間的其中一個側開口402的附近污泥,而對側開口附 近的污泥的刮除不僅有利於減少污泥的洩漏,而且也有助於乾燥氣體從第一乾燥室向第二乾燥室的流動。在另一實施例中,可以在翻動組件的葉片或棘齒上安裝可刮除部件,以利用可刮除部件的前端刮除側開口附近的污泥。在又一實施例中,可以在橋形件401的一側設置側擋板以將其中一個側開口堵住,而僅保留另一側開口,以允許乾燥氣體沿一個方向進入第一乾燥室6a。側擋板沿著橋形件401的長度方向設置在側開口402內,以阻止乾燥氣體從中通過,這樣可以使翻動裝置7的翻動組件702僅刮除另一側開口402附近的污泥。擋板的這種設置是為了使乾燥氣體僅朝一個方向流出側開口402進入第一乾燥室6a,而防止乾燥氣體從相反的另一方向進入第一乾燥室從而防止污泥從中洩漏。 Figure 6 shows an enlarged cross-sectional view of the portion A circled in Figure 2, wherein the flipping assembly of the flipping device is shown adjacent a side opening. The bridge member 401 of the flat plate is located above the communication port 5 and has two side openings 402 formed on both sides thereof with the partition wall. The drying gas as indicated by the arrow enters the communication port 5 from below the partition wall 4, that is, the second drying chamber 6b, and needs to be turned to pass through the left or right opening 402 to reach the first drying chamber 6a. Therefore, there is at least one curved path from the communication port to the side opening between the first drying chamber and the second drying chamber in order to reduce leakage of sludge from the first drying chamber to the second drying chamber. The flipping assembly 702b of the flipping device 7b is positioned such that the leading end of its blade or ratchet can scrape the sludge near the one of the side openings 402 between the bridge 401 and the dividing wall 4, while the opposite side is attached The scraping of the near sludge is not only advantageous for reducing the leakage of the sludge, but also for the flow of the drying gas from the first drying chamber to the second drying chamber. In another embodiment, a scrapable component can be mounted on the blade or ratchet of the flip assembly to scrape the sludge near the side opening with the front end of the scrapable component. In still another embodiment, a side baffle may be provided on one side of the bridge 401 to block one of the side openings, while leaving only the other side opening to allow the drying gas to enter the first drying chamber 6a in one direction . The side dam is disposed in the side opening 402 along the length of the bridge 401 to prevent dry gas from passing therethrough, so that the flipping assembly 702 of the flipping device 7 can only scrape the sludge near the other side opening 402. This arrangement of the baffles is such that the drying gas flows out of the side opening 402 into the first drying chamber 6a in only one direction, while preventing the drying gas from entering the first drying chamber from the opposite direction to prevent the sludge from leaking therefrom.
參見圖2-4所示,在兩個彼此相互交錯佈置的翻動裝置7a、7b中,第一轉動軸701a上的第一翻動組件702a的葉片或棘齒的可刮除前端接近第二轉動軸701b且位於兩個相鄰的第二翻動組件702b之間,且反之也如此。這樣既縮短了第一轉動軸701a和第二轉動軸701b之間的間距,也避免了第一翻動組件702a和第二翻動組件702b之間出現干涉。在另一實施例中,可以將分隔壁4構形成僅在其上形成多個連通口5,且每個翻動裝置7a、7b的多個翻動組件702a、702b分別與多個連通口5相互對應,以便翻動組件702a、702b的葉片或棘齒703a、703b的可刮除前端可以刮除連通口5內或附近的污泥。 也可以在連通口5的上方設置橋形件401,且每個翻動裝置7a、7b的多個翻動組件702a、702b分別與多個橋形件401相互對應,以便翻動組件702a、702b的葉片或棘齒703a、703b的可刮除前端的側邊緣可以刮除側開口402附近的污泥,以使乾燥氣體順暢地流入第一乾燥室6a。除了刮除作用外,翻動組件702a、702b的葉片或棘齒703a、703b也起到剪切、破碎和翻動污泥的作用。在另一實施例中,可以在葉片或棘齒上安裝可刮除部件,以便可刮除部件的前端可以刮除連通口或側開口附近的污泥。 Referring to Figures 2-4, in two flipping devices 7a, 7b interlaced with each other, the scraping front end of the blade or ratchet of the first flipping assembly 702a on the first rotating shaft 701a is adjacent to the second rotational axis. 701b is located between two adjacent second flipping assemblies 702b, and vice versa. This shortens the spacing between the first rotational axis 701a and the second rotational axis 701b and also avoids interference between the first flipping assembly 702a and the second flipping component 702b. In another embodiment, the partition wall 4 may be configured to form only a plurality of communication ports 5 thereon, and the plurality of flipping assemblies 702a, 702b of each of the flipping devices 7a, 7b respectively correspond to the plurality of communication ports 5 The scrapable front end of the blades or ratchets 703a, 703b of the flipping assemblies 702a, 702b can scrape the sludge in or near the communication port 5. It is also possible to provide a bridge 401 above the communication port 5, and the plurality of flipping assemblies 702a, 702b of each of the flipping devices 7a, 7b respectively correspond to the plurality of bridge members 401 so as to flip the blades of the components 702a, 702b or The side edges of the scrapable front ends of the ratchet teeth 703a, 703b can scrape the sludge in the vicinity of the side opening 402 to smoothly flow the dry gas into the first drying chamber 6a. In addition to the scraping action, the blades or ratchets 703a, 703b of the flipping assemblies 702a, 702b also function to shear, break and flip the sludge. In another embodiment, the scrapable member can be mounted on the blade or ratchet so that the front end of the scrapable member can scrape the sludge near the communication port or side opening.
參見圖2,兩個翻動裝置7a、7b的轉動軸701a、701b的一端上可以分別設有與動力輸入件。由外部動力設備驅動傳動裝置,並且傳動裝置依次驅動轉動軸701a、701b旋轉,使得轉動軸701a、701b上的動力輸入件例如齒輪或皮帶輪18a帶動兩個轉動軸701a、701b中的一個,從而使另一轉動軸轉動。第一轉動軸701a和第二轉動軸701b既可以相對彼此朝相反的方向轉動,也可以一起朝相同的方向轉動。 Referring to Fig. 2, one end of the rotating shafts 701a, 701b of the two flipping devices 7a, 7b may be respectively provided with a power input member. The transmission is driven by an external power unit, and the transmission sequentially drives the rotation shafts 701a, 701b to rotate such that a power input member such as a gear or pulley 18a on the rotation shafts 701a, 701b drives one of the two rotation shafts 701a, 701b, thereby The other rotating shaft rotates. The first rotating shaft 701a and the second rotating shaft 701b may be rotated in opposite directions with respect to each other or may be rotated together in the same direction.
圖7示出了翻動裝置的翻動組件上的葉片或棘齒的頂端經過曲面的分隔壁4的下凹部分處的旋轉軌跡的較佳實施例。葉片或棘齒703b具有圓形的旋轉軌跡,且當葉片或棘齒703b的頂端沿分隔壁4的弧形表面掃過時,在連通口5附近葉片或棘齒703b的頂端與分隔壁4的內表面的距離大致相等。這種弧形形狀有助於在翻動組件的葉片或棘齒的可刮除前端或安裝在葉片或棘齒上的可 刮除部件的前端的側邊緣掠過側開口402以清除其附近的污泥之後,被刮除以及翻起的污泥更容易沿著分隔壁的下凹的弧形輪廓回落到第一乾燥室6a內的較低位置,從而提高了乾燥氣體與污泥的接觸頻率。較佳地,分隔壁4的下凹區域在橫向上的內表面的輪廓線與每個翻動裝置7a、7b的翻動組件702a、702b的葉片或棘齒703a、703b的可刮除頂端或者其上安裝的可刮除部件的頂端的旋轉軌跡相似,也即曲面的分隔板面對翻動裝置的下凹的圓弧形區域的半徑R略大於轉動軸的軸線到翻動組件的頂端的距離r。 Figure 7 shows a preferred embodiment of the rotational trajectory of the blade or ratchet tip on the flipping assembly of the flipping device through the concave portion of the curved dividing wall 4. The blade or ratchet 703b has a circular rotational trajectory, and when the tip end of the blade or ratchet 703b is swept along the curved surface of the partition wall 4, the tip of the blade or ratchet 703b is adjacent to the partition wall 4 near the communication port 5. The distances of the surfaces are approximately equal. This curved shape contributes to the scrapable front end of the blade or ratchet of the flipping assembly or to the blade or ratchet After the side edge of the front end of the scraping member sweeps over the side opening 402 to remove the sludge in the vicinity thereof, the scraped and turned-up sludge is more likely to fall back along the concave curved contour of the partition wall to the first drying chamber. The lower position within 6a increases the frequency of contact of the dry gas with the sludge. Preferably, the contour of the inner surface of the concave portion of the partition wall 4 in the lateral direction and the scrapable tip of the blade or ratchet 703a, 703b of the flipping assembly 702a, 702b of each of the flipping devices 7a, 7b or thereon The rotational path of the tip of the mounted scrapable member is similar, that is, the radius R of the curved partition plate facing the concave arcuate region of the flipping device is slightly larger than the distance r from the axis of the rotating shaft to the tip end of the flipping assembly.
如圖2和3所示,第二乾燥室6b包括設置在下殼體4a的側壁上的進氣口15,也即進氣口15位於第二乾燥室6b的側壁上,以使用於待乾燥污泥的乾燥氣體進入到第二乾燥室6b中,而且進氣口可以是一個或多個。儘管翻動組件702a、702b的葉片或棘齒703a、703b的可刮除前端或者固定在葉片或棘齒上的可刮除部件的前端對連通口5或連通口上方的橋形件401的側開口402附近的污泥的刮除有助於減少第一乾燥室6a內的污泥掉落到第二乾燥室6b中,但仍然可能有一些污泥藉由連通口5或從側開口到連通口的彎曲路徑洩漏到第二乾燥室6b中。為了清除洩漏到第二乾燥室6b內的污泥,在下殼體4a的端壁上設有清理口15a,其中,清理口15a用來排出淤積在第二乾燥室6b中的污泥。另外,可以在第二乾燥室6b內靠近底部的位置設置排料裝置,以將污泥傳送到 第二乾燥室6b的一端的清理口15a並排出殼體。第二乾燥室6b橫向上大致呈漏斗形,其側壁也即下殼體4a的側壁從分隔壁朝向底部逐漸收窄,且在收窄的部位也即底部處的形狀是弧形或半圓形的,從而在第二乾燥室6b的底部形成一條弧形截面的縱向通道。藉由從側開口到連通口的彎曲路徑由第一乾燥室6a洩漏的污泥可以匯集到弧形截面的縱向通道中,以便由設置在縱向通道內的排料裝置方便地排出到殼體之外。洩漏到第二乾燥室6b內的污泥可以由進入到第二乾燥室6b內的乾燥氣體再乾燥或二次乾燥,以進一步降低污泥的含水率。為了保持第二乾燥室6b的相對密封,可以在清理口15a處設置可活動擋板,以使乾燥氣體不外洩,並在排出污泥時將活動擋板開啟。 As shown in Figures 2 and 3, the second drying chamber 6b includes an air inlet 15 provided on a side wall of the lower casing 4a, that is, the air inlet 15 is located on the side wall of the second drying chamber 6b for use in drying. The dry gas of the mud enters the second drying chamber 6b, and the air inlet may be one or more. Although the scraping front end of the blade or ratchet 703a, 703b of the flipping assembly 702a, 702b or the front end of the scrapable member fixed to the blade or ratchet is open to the side of the communication port 5 or the bridge 401 above the communication port The scraping of the sludge near 402 helps to reduce the sludge in the first drying chamber 6a from falling into the second drying chamber 6b, but there may still be some sludge passing through the communication port 5 or from the side opening to the communication port. The curved path leaks into the second drying chamber 6b. In order to remove the sludge leaking into the second drying chamber 6b, a cleaning port 15a is provided on the end wall of the lower casing 4a, wherein the cleaning port 15a serves to discharge the sludge deposited in the second drying chamber 6b. In addition, a discharge device may be disposed at a position near the bottom in the second drying chamber 6b to transfer the sludge to The cleaning port 15a at one end of the second drying chamber 6b is discharged from the casing. The second drying chamber 6b is substantially funnel-shaped in the lateral direction, and the side wall thereof, that is, the side wall of the lower casing 4a is gradually narrowed from the partition wall toward the bottom, and the shape at the narrowed portion, that is, the bottom portion is curved or semicircular. Thus, a longitudinal passage of an arcuate cross section is formed at the bottom of the second drying chamber 6b. The sludge leaking from the first drying chamber 6a by the curved path from the side opening to the communication port may be collected into the longitudinal passage of the curved section so as to be conveniently discharged to the casing by the discharge device provided in the longitudinal passage outer. The sludge leaking into the second drying chamber 6b may be dried or secondarily dried by the drying gas entering the second drying chamber 6b to further reduce the moisture content of the sludge. In order to maintain the relative sealing of the second drying chamber 6b, a movable baffle may be provided at the cleaning port 15a so that the drying gas does not leak, and the movable baffle is opened when the sludge is discharged.
污泥乾化系統1還包括鼓風裝置12。乾化裝置107藉由由雙線表示的連接管道經由進氣口15與鼓風裝置12連通,其中,鼓風裝置12可以將要乾燥污泥的乾燥氣體沿箭頭方向吹送到乾化裝置107的第二乾燥室6b。 The sludge drying system 1 further includes an air blowing device 12. The drying device 107 communicates with the air blowing device 12 via the air inlet 15 through a connecting pipe indicated by a double line, wherein the air blowing device 12 can blow the drying gas to be dried sludge to the drying device 107 in the direction of the arrow. Two drying chambers 6b.
污泥乾化系統1還可以包括引風裝置13、加熱裝置108或熱交換裝置109。如圖1所示,如果需要向第二乾燥室6b內吹送熱乾燥氣體,可以在鼓風裝置12的下游位置設置加熱裝置108,以便向乾化裝置107提供加熱的乾燥氣體。引風裝置13可以設置在乾化裝置107的下游位置,以使乾燥污泥後的尾氣或乾燥氣體從第一乾燥室6a儘快流出。熱交換裝置109可以與鼓風裝置12和引 風裝置13相關聯,其中,熱交換裝置109的熱端與鼓風裝置12相連,而其冷端與引風裝置13相連。這樣,來自引風裝置13的尾氣藉由熱交換裝置109的冷端,而要進入鼓風裝置12的外部的乾燥氣體藉由熱交換裝置109的熱端,使得熱交換裝置109藉由熱交換部件回收尾氣中的熱量並將熱量傳遞給要進入鼓風裝置12的用於待乾燥污泥的乾燥氣體,以提高熱效率。 The sludge drying system 1 may further include a drafting device 13, a heating device 108, or a heat exchange device 109. As shown in FIG. 1, if it is necessary to blow the hot dry gas into the second drying chamber 6b, a heating device 108 may be provided at a position downstream of the air blowing device 12 to supply the drying device 107 with the heated drying gas. The air guiding device 13 may be disposed at a position downstream of the drying device 107 to allow the exhaust gas or the drying gas after the drying sludge to flow out from the first drying chamber 6a as quickly as possible. The heat exchange device 109 can be combined with the air blowing device 12 The wind unit 13 is associated with the hot end of the heat exchange unit 109 connected to the blower unit 12 and the cold end of which is connected to the draft unit 13. Thus, the exhaust gas from the air introducing means 13 is passed through the cold end of the heat exchange means 109, and the dry gas which is to enter the outside of the air blowing means 12 is passed through the hot end of the heat exchange means 109, so that the heat exchange means 109 is exchanged by heat. The component recovers heat from the exhaust gas and transfers the heat to the drying gas for the sludge to be dried to enter the air blowing device 12 to improve thermal efficiency.
參見圖1和3,鼓風裝置12經管道和進氣口15與第二乾燥室6b連通,以便將乾燥氣體吹送到第二乾燥室6b內。引風裝置13經管道和排氣口10與第一乾燥室6a連通。輸送到第二乾燥室6b內的乾燥氣體可以是如熱氣體、含有化學物質的氣體、熱空氣、常溫氣體或冷凍氣體等乾燥介質,也可以是特殊配製的乾燥介質。鼓風裝置12可以用來提高乾燥氣體流入第二乾燥室6b內的速度,而引風裝置13可以加快尾氣從第一乾燥室6a的流出。典型地,鼓風裝置可以是鼓風機或風扇,而引風裝置可以是引風機。另外,也可以用增壓裝置替代鼓風裝置12,以將乾燥氣體以一定的壓力輸送到第二乾燥室6b,從而使乾燥氣體加快流入第一乾燥室6a。同樣可以用減壓裝置替代引風裝置13,以加快尾氣的流動,從而提高污泥乾化效率。加熱裝置(未示出)可以單獨設置,也可以與鼓風裝置集成在一起。另外,經過加熱的乾燥氣體被鼓風裝置或增壓裝置輸送到第二乾燥室6b內可以對其中的污泥進行再乾燥。在加熱的乾燥氣體對掉落或洩漏到第 二乾燥室6b內的污泥進行二次乾燥的同時,其中的一部分熱量也可以藉由金屬材料製成的上殼體2和分隔壁4傳遞到鋪放在分隔壁4上的污泥,以對第一乾燥室6a內的污泥起輔助乾化的作用。 Referring to Figures 1 and 3, the air blowing device 12 communicates with the second drying chamber 6b via a duct and an air inlet 15 to blow dry gas into the second drying chamber 6b. The air guiding device 13 communicates with the first drying chamber 6a via a duct and an exhaust port 10. The drying gas delivered into the second drying chamber 6b may be a drying medium such as a hot gas, a chemical-containing gas, hot air, a normal temperature gas or a freezing gas, or a specially prepared drying medium. The air blowing means 12 can be used to increase the speed at which the drying gas flows into the second drying chamber 6b, and the air guiding means 13 can accelerate the outflow of the exhaust gas from the first drying chamber 6a. Typically, the air blowing device may be a blower or a fan, and the air guiding device may be an induced draft fan. Alternatively, the air blowing device 12 may be replaced with a supercharging device to deliver the drying gas to the second drying chamber 6b at a certain pressure, so that the drying gas is accelerated to flow into the first drying chamber 6a. It is also possible to replace the air guiding device 13 with a pressure reducing device to speed up the flow of the exhaust gas, thereby improving the sludge drying efficiency. The heating device (not shown) may be provided separately or integrated with the air blowing device. Further, the heated drying gas is sent to the second drying chamber 6b by the air blowing device or the charging device to re-dry the sludge therein. The heated dry gas pair drops or leaks to the first While the sludge in the second drying chamber 6b is subjected to secondary drying, a part of the heat may be transferred to the sludge laid on the partition wall 4 by the upper casing 2 and the partition wall 4 made of a metal material. The sludge in the first drying chamber 6a functions as an auxiliary drying.
圖8示出了本發明的污泥乾化流程或方法。如上所述,本發明的污泥乾化系統1可以將所接收的含水率大約90%以上的污泥經過一系列的污泥處理及乾化後直接獲得含水率大約40%以下的污泥,而在污泥乾化過程中,污泥的含水率在各個處理階段被逐漸的降低。利用污泥乾化系統1進行污泥乾化方法可適用於處理90%以上的不同含水率的液態污泥,例如,檢測完污泥的含水率後實施輸送步驟101a,可以利用輸送裝置101將液態污泥輸送至調質裝置或二次調質裝置104進行調質處理。在調質步驟104a,將有機調質劑與污泥進行混合,以使液態污泥適用於機械脫水,且經調質後的污泥被輸送到下游的脫水裝置105。在脫水步驟105a,利用脫水裝置對調質的污泥進行機械脫水處理,將從中濾出的水分排放掉而留下的污泥成為固態的塊體,其中,這種塊狀污泥的含水率大約為40-60%,而經過脫水後的塊狀污泥被輸送到乾化裝置進行乾化處理。在乾化步驟107a,將塊狀污泥輸送到乾化裝置107的第一乾燥室內,藉由翻動裝置的翻動組件對污泥剪切、破碎和翻動、經過連通口或側開口從第二乾燥室進入第一乾燥室內的乾燥氣體與污泥接觸以及翻動組件的葉片或棘齒的可刮除前端對連通口或側開口附近的污泥 的刮除,污泥得到了充分的乾燥。乾燥完的污泥藉由實施出料步驟9a被排出乾化裝置。如果需要,可以由輸送裝置101將液態污泥輸送到前置調質裝置102和濃縮裝置103,以實施前置調質步驟102a和濃縮步驟103a。在前置調質步驟102a將有機調質劑與污泥混合以促進污泥絮狀體的生成,而在濃縮步驟103a使污泥絮狀體與水分分離而降低污泥的含水率。之後將濃縮的污泥輸送到如上所述的調質步驟104a,以實施後續的乾化處理過程。另外,為了使污泥得到充分的乾燥可以對脫水後的塊狀污泥進行破碎,因此,可以在乾化步驟107a之前實施破碎步驟106a。在破碎步驟106a中,破碎裝置106將脫水後的塊狀污泥破碎成類似尺寸大小的小塊體或碎塊,以便於各個碎塊在乾燥過程中受熱均勻。此外,在污泥的乾化過程需要實施鼓風步驟12b,其中,使乾燥氣體進入鼓風裝置12,並且由鼓風裝置12將乾燥氣體吹送到第二乾燥室6b的進氣口15。在另一實施例中,可以實施引風步驟13b,藉由引風裝置13將尾氣從第一乾燥室的排氣口10回收,以輸送給後續的處理設備。也可以實施加熱步驟108a,使外部乾燥氣體流過加熱裝置108以將乾燥氣體加熱到所希望的溫度。還可以實施熱量回收步驟109a,將由引風裝置13回收的尾氣輸送到熱交換裝置109的冷端,藉由熱交換過程將尾氣中的熱量傳遞給流過熱交換裝置109的熱端的乾燥氣體,從而可以提高廢熱的利用率。 Figure 8 illustrates a sludge drying process or process of the present invention. As described above, the sludge drying system 1 of the present invention can directly obtain sludge having a moisture content of about 40% or less after a series of sludge treatment and drying of the sludge having a moisture content of about 90% or more. In the sludge drying process, the moisture content of the sludge is gradually reduced at each treatment stage. The sludge drying method using the sludge drying system 1 can be applied to treat liquid sludge having different water content of 90% or more. For example, after detecting the moisture content of the sludge, the conveying step 101a can be carried out, and the conveying device 101 can be used. The liquid sludge is sent to the tempering device or the secondary tempering device 104 for quenching and tempering treatment. In the tempering step 104a, the organic tempering agent is mixed with the sludge to make the liquid sludge suitable for mechanical dewatering, and the tempered sludge is sent to the downstream dewatering device 105. In the dehydration step 105a, the tempered sludge is mechanically dehydrated by a dehydration device, and the sludge filtered out is discharged to leave a sludge which becomes a solid block, wherein the moisture content of the lump sludge is about It is 40-60%, and the dehydrated bulk sludge is sent to a drying device for drying. In the drying step 107a, the bulk sludge is conveyed to the first drying chamber of the drying device 107, and the sludge is sheared, broken and turned by the turning assembly of the turning device, and the second drying is performed through the communication port or the side opening. The drying gas entering the first drying chamber contacts the sludge and the scraping front end of the blade or ratchet of the flipping assembly is connected to the sludge near the communication port or the side opening The scrape is scraped and the sludge is fully dried. The dried sludge is discharged to the drying device by performing the discharging step 9a. If desired, the liquid sludge can be conveyed by the conveying device 101 to the pre-conditioning apparatus 102 and the concentration unit 103 to carry out the pre-conditioning step 102a and the concentration step 103a. In the pre-conditioning step 102a, the organic tempering agent is mixed with the sludge to promote the formation of the sludge floc, and in the concentration step 103a, the sludge floc is separated from the moisture to reduce the moisture content of the sludge. The concentrated sludge is then conveyed to a conditioning step 104a as described above to carry out a subsequent drying process. Further, in order to sufficiently dry the sludge, the dehydrated bulk sludge can be crushed. Therefore, the crushing step 106a can be carried out before the drying step 107a. In the crushing step 106a, the crushing device 106 breaks the dehydrated bulk sludge into small pieces or pieces of similar size so that the individual pieces are uniformly heated during the drying process. Further, in the drying process of the sludge, it is necessary to carry out the blasting step 12b in which the drying gas is introduced into the air blowing device 12, and the drying gas is blown by the air blowing device 12 to the air inlet 15 of the second drying chamber 6b. In another embodiment, a draft step 13b can be implemented by which the exhaust gas is recovered from the exhaust port 10 of the first drying chamber for delivery to subsequent processing equipment. A heating step 108a can also be implemented to cause an external drying gas to flow through the heating device 108 to heat the drying gas to a desired temperature. It is also possible to carry out a heat recovery step 109a for conveying the off-gas recovered by the air introducing means 13 to the cold end of the heat exchange means 109, and transferring the heat in the exhaust gas to the dry gas flowing to the hot end of the heat exchange means 109 by the heat exchange process, thereby It can increase the utilization rate of waste heat.
圖9示出了利用乾化裝置107實現污泥乾化 過程或方法的流程。結合圖2和3,藉由圖示出的各個裝置可以實施污泥乾化過程。脫水污泥或破碎污泥由輸送裝置經過進料步驟8a送入到乾化裝置107(如虛線部分所示)的第一乾燥室6a中。在翻動和刮除步驟107a1,外部動力設備(未示出)藉由傳動裝置和動力輸入件例如動力輸入件18b驅動轉動軸701a、701b轉動,進而帶動翻動組件702a、702b旋轉。翻動組件的各個葉片或棘齒703a、703b不斷地翻動污泥。在翻動組件連續剪切和破碎的同時,翻動組件701a、701b的葉片或棘齒702a、702b的可刮除前端或者安裝在葉片或棘齒上的可刮除部件的前端的側邊緣按一定的時間間隔刮除連通口5或側開口402附近的污泥。與此同時實施進氣步驟15b,由鼓風裝置12經管道以及進氣口15將乾燥氣體輸送到乾化裝置107的第二乾燥室6b。乾燥氣體進入第二乾燥室6b的流動速度與送風速度相關聯。翻動組件的葉片或棘齒702a、702b的前端或安裝在葉片或棘齒上的可刮除部件的前端對連通口或側開口402附近的污泥的刮除使得乾燥氣體順暢地流入第一乾燥室6a。隨著第一乾燥室6a內翻動組件的葉片或棘齒702a、702b對污泥的剪切、破碎和翻動以及乾燥氣體對污泥的乾燥作用,污泥的顆粒度逐漸變小並粉粒化,從而污泥的乾燥程度也不斷提高。在完成污泥的乾燥之後乾燥氣體在排氣步驟10a由引風裝置13經位於第一乾燥室6a的上部的排氣口10以及管道輸送到大氣中或熱交換裝置107中,而在出料步驟9a將乾燥後 的污泥從出料口9排出。另外,在污泥的二次乾燥或再乾燥步驟107a2,由鼓風裝置12輸送到第二乾燥室6b內的乾燥氣體對藉由連通口5或從連通口到側開口的彎曲路徑洩漏到第二乾燥室內的污泥進行二次乾燥,以進一步降低污泥的含水率。在出料步驟9a和清理步驟可以將乾燥後的污泥和二次乾燥後的污泥分別藉由第一乾燥室的出料口9和第二乾燥室的清理口15a輸送到污泥收集設備。另外,進料步驟8a、翻動和刮除步驟107a、進氣步驟15b、排氣步驟10a以及二次乾燥或再乾燥步驟107a2既可以依次實施,又可以同時實施。 Figure 9 shows sludge drying by means of a drying device 107 The process of a process or method. In connection with Figures 2 and 3, the sludge drying process can be carried out by means of the various devices illustrated. The dewatered sludge or crushed sludge is fed by the conveying means through the feeding step 8a to the first drying chamber 6a of the drying device 107 (shown by the broken line portion). In the flipping and scraping step 107a1, an external power unit (not shown) drives the rotating shafts 701a, 701b to rotate by a transmission and a power input member such as the power input member 18b, thereby driving the flipping assemblies 702a, 702b to rotate. Each blade or ratchet 703a, 703b of the flip assembly continuously flips the sludge. While the flipping assembly is continuously sheared and broken, the scraping front end of the blade or ratchet 702a, 702b of the flipping assembly 701a, 701b or the side edge of the front end of the scraping member mounted on the blade or ratchet is fixed. The sludge in the vicinity of the communication port 5 or the side opening 402 is scraped off at intervals. At the same time, the air intake step 15b is carried out, and the dry gas is supplied from the air blowing device 12 through the duct and the air inlet 15 to the second drying chamber 6b of the drying device 107. The flow rate of the drying gas into the second drying chamber 6b is associated with the blowing speed. The front end of the blade or ratchet 702a, 702b of the flipping assembly or the front end of the scrapable member mounted on the blade or the ratchet scrapes off the sludge in the vicinity of the communication port or side opening 402 so that the dry gas smoothly flows into the first drying Room 6a. As the blades or ratchets 702a, 702b of the flipping assembly in the first drying chamber 6a shear, crush and tumbling the sludge and the drying of the drying gas to the sludge, the granularity of the sludge gradually becomes smaller and the powder is granulated. Therefore, the degree of drying of the sludge is also continuously increased. After the drying of the sludge is completed, the drying gas is transported to the atmosphere or the heat exchange device 107 by the air introducing means 13 through the exhaust port 10 located at the upper portion of the first drying chamber 6a and the duct in the exhausting step 10a. Step 9a will dry The sludge is discharged from the discharge port 9. Further, in the secondary drying or re-drying step 107a2 of the sludge, the drying gas delivered into the second drying chamber 6b by the air blowing device 12 leaks to the curved path through the communication port 5 or from the communication port to the side opening. The sludge in the two drying chambers is subjected to secondary drying to further reduce the moisture content of the sludge. In the discharging step 9a and the cleaning step, the dried sludge and the secondary dried sludge can be transported to the sludge collecting device by the discharge port 9 of the first drying chamber and the cleaning port 15a of the second drying chamber, respectively. . Further, the feeding step 8a, the tumbling and scraping step 107a, the intake step 15b, the venting step 10a, and the secondary drying or re-drying step 107a2 may be carried out sequentially or simultaneously.
在本申請中儘管列舉了多種較佳的實施方式,但本發明不僅限於說明書所提及到的內容,本領域技術人員完全可以藉由本發明的上述設計思想對本發明的底部乾燥式污泥乾化裝置中的各個部件或裝置進行變化和修改,而這些變化或修改都在本發明的構思範圍之內。 In the present application, although a plurality of preferred embodiments are listed, the present invention is not limited to the contents mentioned in the specification, and those skilled in the art can fully dry the bottom dry sludge of the present invention by the above design idea of the present invention. Variations and modifications are made to the various components or devices in the device, and such changes or modifications are within the scope of the inventive concept.
1‧‧‧污泥乾化系統 1‧‧‧Sludge drying system
5‧‧‧連通口 5‧‧‧Connected
6a‧‧‧第一乾燥室 6a‧‧‧First drying room
6b‧‧‧第二乾燥室 6b‧‧‧Second drying room
8‧‧‧進料口 8‧‧‧ Feed inlet
9‧‧‧出料口 9‧‧‧Outlet
10‧‧‧排氣口 10‧‧‧Exhaust port
12‧‧‧鼓風裝置 12‧‧‧Blowing device
13‧‧‧引風裝置 13‧‧‧Air intake
15‧‧‧進氣口 15‧‧‧air inlet
101‧‧‧輸送裝置 101‧‧‧Conveyor
102‧‧‧前置調質裝置 102‧‧‧Pre-conditioning equipment
103‧‧‧濃縮裝置 103‧‧‧concentrator
104‧‧‧調質裝置 104‧‧‧Qualification device
105‧‧‧脫水裝置 105‧‧‧Dehydration device
106‧‧‧破碎裝置 106‧‧‧Crushing device
107‧‧‧乾化裝置 107‧‧‧Drying device
108‧‧‧加熱裝置 108‧‧‧ heating device
109‧‧‧熱交換裝置 109‧‧‧Heat exchange unit
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CN108083587B (en) * | 2016-11-23 | 2024-06-28 | 广州正晟科技有限公司 | Combined device for drying sludge, manufacturing method thereof and drying method |
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CN108083606A (en) * | 2016-11-23 | 2018-05-29 | 广州新致晟环保科技机械设备有限公司 | The combination unit and its drying means of dewatered sludge |
CN108083602B (en) * | 2016-11-23 | 2024-03-19 | 广州正晟科技有限公司 | Combined device for drying sludge and method for drying sludge by using combined device |
CN108083603A (en) * | 2016-11-23 | 2018-05-29 | 广州新致晟环保科技机械设备有限公司 | The combination unit of dewatered sludge and its method of dewatered sludge |
CN108083586B (en) * | 2016-11-23 | 2024-06-25 | 广州正晟科技有限公司 | Combined device for drying sludge, manufacturing method thereof and drying method |
CN106517730A (en) * | 2016-12-07 | 2017-03-22 | 华南理工大学 | Fine powder based sludge dewatering treatment method and equipment |
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-
2015
- 2015-01-07 CN CN201510025406.XA patent/CN105819652A/en active Pending
- 2015-12-30 WO PCT/CN2015/099789 patent/WO2016110212A1/en active Application Filing
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2016
- 2016-01-04 TW TW105100060A patent/TW201641444A/en unknown
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WO2016110212A1 (en) | 2016-07-14 |
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