WO2008092373A1 - Shaft type stirring mud multilevel secondary steam recycling drying device - Google Patents

Shaft type stirring mud multilevel secondary steam recycling drying device Download PDF

Info

Publication number
WO2008092373A1
WO2008092373A1 PCT/CN2008/000160 CN2008000160W WO2008092373A1 WO 2008092373 A1 WO2008092373 A1 WO 2008092373A1 CN 2008000160 W CN2008000160 W CN 2008000160W WO 2008092373 A1 WO2008092373 A1 WO 2008092373A1
Authority
WO
WIPO (PCT)
Prior art keywords
sludge
hollow
shaft
stage
drying
Prior art date
Application number
PCT/CN2008/000160
Other languages
French (fr)
Chinese (zh)
Inventor
Zhixiao Zhang
Original Assignee
Zhixiao Zhang
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
Priority to CN200720105964.8 priority Critical
Priority to CNU2007201059648U priority patent/CN201000259Y/en
Application filed by Zhixiao Zhang filed Critical Zhixiao Zhang
Publication of WO2008092373A1 publication Critical patent/WO2008092373A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/001Machines 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
    • F26B17/003Machines 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 fixed floors provided with scrapers

Abstract

A mud-drying device, which has a feed mechanism arranged on top of the body (11) and a bunker formed at the bottom of the body. A discharging mechanism is arranged at the bottom of the bunker. A stirring shaft (15) and multilevel hollow column plates are arranged inside the body. There are stirring arms (3) on top of the hollow column plates. The spaces above the hollow column plates severed as mud-vaporizing chambers (12). There are heat source medium flow passages consisted of heat plates (4), division plates (7) and baffle plates (5) in the hollow column plates. The staring end of each heat source medium flow passage is connected to the lower mud-vaporizing chamber by pipeline. The multi-layer hollow column plates are provieded with central discharge ports (14) and edge discharge ports (6) at interval. The heat exchange travel route of the mud effectively exchanges heat with multilevel secondary steam heating chamber, hence saves energy.

Description

轴型搅拌污泥多级二次蒸汽回用干燥装置 技术领域  Shaft-type agitated sludge multi-stage secondary steam reuse drying device
本实用新型涉及一种污泥干燥装置, 尤其涉及一种轴型搅拌污泥多级 二次蒸汽回用干燥装置。  The utility model relates to a sludge drying device, in particular to a multi-stage secondary steam recycling drying device for shaft type agitating sludge.
背景技术 Background technique
污泥热处理具有很高的减容率, 且可以大量、 迅速地处置污泥, 无害 化彻底, 近几年得到快速发展。 但由于机械脱水后的湿污泥, 含水率高达 约 80%, 热值很低, 若直接焚烧, 每吨干基污泥需添加 304 565L重油, 能耗大。 而干燥后的污泥热值较高, 可接近劣质煤的热值水平。 因此, 对 机械脱水后的污泥进行加热脱水干燥, 提升污泥热值, 是污泥燃料化的关 键技术。  The sludge heat treatment has a high capacity reduction rate, and the sludge can be disposed in a large amount and quickly, and is harmless and thoroughly developed in recent years. However, due to the wet sludge after mechanical dewatering, the water content is as high as about 80%, and the calorific value is very low. If it is directly incinerated, 304 565L of heavy oil should be added per ton of dry sludge, which consumes a lot of energy. The dried sludge has a higher calorific value and can approach the calorific value of the inferior coal. Therefore, heating and dehydrating the sludge after mechanical dewatering and increasing the calorific value of the sludge are the key technologies for sludge fueling.
现有的轴型污泥单级干燥装置由污泥搅拌输送机械、加热室和蒸发室 组成。 送入蒸发室的污泥, 借助搅拌输送机械实现与加热室的换热行程, 在蒸发室蒸发出二次蒸汽而干燥, 加热室的热源由装置外另设的加热系统 提供, 二次蒸汽由装置外另设的冷却系统冷凝成水和少量尾气。 利用单级 干燥装置, 折合 lkg水蒸气的热能, 只能蒸发出约 lkg的污泥水分, 污泥 蒸发产生的二次蒸汽, 仍具有相当高的热值, 却由于其压力低而不利于输 送, 并且其中存在污染物而使其应用性受到局限等原因, 被直接引出干燥 装置外冷凝处理, 其能量未能得到充分利用, 造成了干燥系统热能大量损 耗。 因此, 节能的污泥干燥装置的开发, 是实现污泥燃料化技术的重要内 容, 对实现污泥资源化、 减量化、 无害化极其关键。  The existing shaft type sludge single-stage drying device is composed of a sludge agitation conveying machine, a heating chamber and an evaporation chamber. The sludge sent to the evaporation chamber is heated by the agitation conveyor to the heat exchange chamber, and the secondary steam is evaporated in the evaporation chamber to be dried. The heat source of the heating chamber is provided by a heating system external to the device, and the secondary steam is provided by A separate cooling system outside the unit condenses into water and a small amount of exhaust. Using a single-stage drying device, the thermal energy of lkg water vapor can only evaporate about lkg of sludge water. The secondary steam generated by sludge evaporation still has a relatively high calorific value, but it is not conducive to transportation due to its low pressure. And the presence of contaminants in which the applicability is limited, etc., is directly taken out of the drying device for condensation treatment, and its energy is not fully utilized, resulting in a large loss of heat energy in the drying system. Therefore, the development of an energy-saving sludge drying device is an important part of the sludge fueling technology, and it is critical to realize sludge recycling, reduction, and harmlessness.
发明内容 Summary of the invention
本实用新型的目的是针对现有技术的不足,提供一种效率高、能耗少、 投资省和便于实现连续化规模化生产的新型轴型搅拌污泥多级二次蒸汽 回用干燥装置。  The purpose of the utility model is to provide a novel shaft-type agitated sludge multi-stage secondary steam reuse drying device with high efficiency, low energy consumption, low investment, and convenient continuous large-scale production in view of the deficiencies of the prior art.
本实用新型包括筒型的本体。 本体顶部设置有给料机构, 给料机构上 设置有料斗。 本体底部收缩成料仓, 料仓的底部设置有出料机构。 本体内 沿轴心设置有搅拌轴, 搅拌轴与电机配合连接。 多层空心塔板平面设置在 本体内, 空心塔板边沿与本体内壁配合并固定连接, 每层空心塔板上方空 间为污泥蒸发室。 空心塔板作为污泥加热室包括顶部加热板和底部分隔 板, 加热板与分隔板通过竖直方向的折流板连接。 所述的折流板为螺旋形 或迷宫形, 加热板、 分隔板和折流板围合形成螺旋形或迷宫形热源介质流 道。 底层的空心塔板中的热源介质流道的起始端通过管路与热源连通, 顶 层的污泥蒸发室通过管路与外界连通。其余各层空心塔板中的热源介质流 道的起始端与其下方的污泥蒸发室通过管路连通。 多层空心塔板间隔设置 有中心出料口和边沿出料口, 中心出料口设置在空心塔板的中心位置, 边 沿出料口设置在空心塔板的边沿位置。 每层空心塔板上部设置有搅拌臂, 搅拌臂与搅拌轴配合固定连接。 The utility model comprises a cylindrical body. A feeding mechanism is arranged on the top of the body, and a hopper is arranged on the feeding mechanism. The bottom of the body is shrunk into a silo, and the bottom of the silo is provided with a discharge mechanism. A stirring shaft is arranged along the shaft center in the body, and the stirring shaft is coupled with the motor. The multi-layer hollow tray is arranged flat in the body, and the edge of the hollow tray is matched with the inner wall and fixedly connected, and the hollow tray is empty above each layer. The room is a sludge evaporation chamber. The hollow tray as a sludge heating chamber includes a top heating plate and a bottom portion partition plate, and the heating plate and the partition plate are connected by a baffle plate in a vertical direction. The baffle is spiral or labyrinth, and the heating plate, the partition plate and the baffle are enclosed to form a spiral or labyrinth heat source medium flow path. The starting end of the heat source medium flow channel in the hollow tray of the bottom layer communicates with the heat source through the pipeline, and the sludge evaporation chamber of the top layer communicates with the outside through the pipeline. The starting end of the heat source medium flow passage in the remaining hollow trays is connected to the sludge evaporation chamber below it through a pipeline. The multi-layer hollow trays are arranged with a central discharge opening and a rim discharge opening, the central discharge opening is arranged at the center of the hollow tray, and the edge discharge opening is arranged at the edge of the hollow tray. A stirring arm is arranged on the upper part of each hollow tube, and the stirring arm is fixedly connected with the stirring shaft.
所述的给料机构为螺旋输送机、 刮板输送机、 链板输送机、 皮带输送 机、 活塞推杆中的一种。  The feeding mechanism is one of a screw conveyor, a scraper conveyor, a chain conveyor, a belt conveyor, and a piston push rod.
所述的出料机构为螺旋输送机、 刮板输送机、 链板输送机、 皮带输送 机、 活塞推杆中的一种。  The discharging mechanism is one of a screw conveyor, a scraper conveyor, a chain conveyor, a belt conveyor, and a piston push rod.
所述的各层空心塔板中的热源介质流道的终止端设置有与外界连通 的放水管和排气管。  The terminating end of the heat source medium flow passage in each of the hollow trays is provided with a drain pipe and an exhaust pipe which communicate with the outside.
所述的料仓内设置有刮料臂, 刮料臂与搅拌轴固定连接, 并且与料仓 侧壁位置对应。  The scraping arm is disposed in the silo, and the scraping arm is fixedly connected with the stirring shaft and corresponds to the position of the sidewall of the silo.
所述的搅拌臂为耙子, 其中设置有中心出料口的空心塔板上方的耙子 的耙钉向中心倾斜, 设置有边沿出料口的空心塔板上方的耙子的耙钉向边 沿倾斜。  The stirring arm is a tweezers, wherein the dowel of the tweezers above the hollow tray provided with the central discharge port is inclined toward the center, and the dowel of the tweezers above the hollow tray provided with the edge discharge opening is inclined toward the edge.
所述的搅拌臂为刮刀, 其中设置有中心出料口的空心塔板上方的刮刀 的刀刃在内弯处, 设置有边沿出料口的空心塔板上方的刮刀的刀刃在外弯 处。  The agitating arm is a scraper, wherein the blade of the scraper above the hollow tray provided with the central discharge port is at the inner bend, and the blade of the scraper disposed above the hollow tray provided with the edge discharge opening is at the outer bend.
本实用新型的轴型搅拌污泥多级二次蒸汽回用干燥装置, 以机械搅拌 为手段实现污泥定向输送, 能实现污泥换热行程与多级二次蒸汽加热室换 热。 本实用新型仅以少量的外加热源参与末级加热室换热, 将末级蒸发室 中的污泥进行间接加热蒸发出污泥二次蒸汽, 该二次蒸汽被回用作为上一 级加热室的热源参与上级加热室换热; 依次类推, 实现各级蒸发室二次蒸 汽的逐级利用, 直至第一级蒸发室。 污泥在各级蒸发室中被不断蒸发出二 次蒸汽而逐渐干燥。各级蒸发室的二次蒸汽被回用参与上一级加热室换热 后, 冷凝为水和少量尾气, 疏水和尾气均排出装置。 第一级蒸发室的二次 蒸汽可直接排出, 经冷凝器冷却为水和少量尾气。 由于尾气具有恶臭, 需 送往脱臭系统净化处理。 二次蒸汽疏水集中后另作处置。 本实用新型由于 充分回用了多级蒸发室的污泥二次蒸汽, 使折合 1kg水蒸气的外加热源能 量, 可蒸发出约 2〜5kg的污泥水分, 节能效果非常显著。 The utility model relates to a multi-stage secondary steam recycling drying device for shaft-type agitated sludge, which realizes the directed transport of sludge by means of mechanical stirring, and can realize heat exchange between the sludge heat exchange stroke and the multi-stage secondary steam heating chamber. The utility model only participates in the heat exchange of the final heating chamber with a small amount of external heating source, and indirectly heats the sludge in the final evaporation chamber to evaporate the secondary steam of the sludge, and the secondary steam is reused as the upper heating chamber. The heat source participates in the heat exchange of the upper heating chamber; and so on, the secondary steam of the evaporation chamber at each level is utilized step by step until the first stage evaporation chamber. The sludge is continuously evaporated in the evaporation chamber of each stage and gradually dried. The secondary steam in the evaporation chamber of each level is reused to participate in the heat exchange of the upper heating chamber, and is condensed into water and a small amount of exhaust gas, and the hydrophobic and exhaust gases are discharged from the device. Secondary of the first stage evaporation chamber The steam can be discharged directly, cooled by the condenser to water and a small amount of tail gas. Since the exhaust gas has a foul odor, it needs to be sent to the deodorization system for purification treatment. After the secondary steam is concentrated, it is disposed of separately. In the utility model, the secondary steam of the sludge in the multi-stage evaporation chamber is fully reused, and the energy of the external heating source equivalent to 1 kg of water vapor can be evaporated, and the sludge moisture of about 2 to 5 kg can be evaporated, and the energy saving effect is very remarkable.
附图说明 DRAWINGS
图 1为本实用新型一实施例的结构示意图;  1 is a schematic structural view of an embodiment of the present invention;
图 2为图 1的 A-A剖面示意图;  Figure 2 is a schematic cross-sectional view taken along line A-A of Figure 1;
图 3为图 1的 B B剖面示意图。  Figure 3 is a schematic cross-sectional view of the B B of Figure 1.
具体实施方式 detailed description
如图 1、 图 2和图 3所示, 本实用新型的轴型搅拌污泥多级二次蒸汽 回用干燥装置包括外保温的密闭本体 11。在本体 11内设有电机 16所带动 的搅拌轴 15。 在本体 11上端设有螺旋输送机 2和料斗 1, 本体 11下端收 縮形成料仓 8, 料仓 8底部设置有螺旋输送机 10。 料仓 8内设置有防堵料 用的刮料臂 9, 刮料臂 9与搅拌轴 15固定连接, 并且与料仓 8侧壁位置对 应。 本体 11 内设置有三层空心塔板, 每层空心塔板的上方空间为污泥蒸 发室 12。 空心塔板作为污泥加热室包括顶部加热板 4和底部分隔板 7, 加 热板 4与分隔板 7通过竖直方向的螺旋形折流板 5连接。 加热板 4、 分隔 板 Ί和折流板 5围合形成螺旋形热源介质流道 13。顶层和底层的空心塔板 的中心位置设置有中心出料口 14,中间层的空心塔板的边沿位置设置有边 沿出料口 6。 每层空心塔板上部设置有搅拌耙 3, 搅拌耙 3与搅拌轴 15配 合固定连接, 顶层和底层的搅拌耙 3的耙钉向中心倾斜, 中间层的搅拌耙 3的耙钉向边沿倾斜。底层的空心塔板中的热源介质流道 13的起始端通过 管路与热源连通, 顶层的污泥蒸发室 12通过管路与外界连通。 顶层和中 间层的空心塔板中的热源介质流道 13的起始端与其下方的污泥蒸发室 12 通过管路连通, 热源介质流道 13 的终止端设置有与外界连通的放水管和 排气管。  As shown in Fig. 1, Fig. 2 and Fig. 3, the shaft type agitated sludge multi-stage secondary steam reuse drying device of the present invention comprises a sealed body 11 which is externally insulated. A stirring shaft 15 driven by a motor 16 is provided in the body 11. At the upper end of the body 11, a screw conveyor 2 and a hopper 1, a lower end of the body 11 is contracted to form a silo 8, and a screw conveyor 10 is disposed at the bottom of the silo 8. A scraper arm 9 for anti-blocking is disposed in the silo 8, and the scraper arm 9 is fixedly coupled to the agitating shaft 15 and corresponds to the position of the side wall of the silo 8. Three hollow trays are arranged in the body 11, and the space above each hollow tray is the sludge evaporation chamber 12. The hollow tray as a sludge heating chamber includes a top heating plate 4 and a bottom portion partition plate 7, and the heating plate 4 and the partition plate 7 are connected by a spiral baffle 5 in the vertical direction. The heating plate 4, the partition plate Ί and the baffle plate 5 are enclosed to form a spiral heat source medium flow path 13. The center of the top and bottom hollow trays is provided with a central discharge opening 14, and the edge of the hollow tray of the intermediate layer is provided with an edge discharge port 6. The upper part of each hollow tube is provided with a stirring crucible 3, and the stirring crucible 3 is fixedly coupled with the stirring shaft 15, and the top and bottom stirring crucibles 3 are inclined toward the center, and the crucible of the stirring crucible 3 of the intermediate layer is inclined toward the edge. The starting end of the heat source medium flow path 13 in the hollow tray of the bottom layer communicates with the heat source through the pipeline, and the sludge evaporation chamber 12 of the top layer communicates with the outside through the pipeline. The starting end of the heat source medium flow passage 13 in the hollow tray of the top layer and the intermediate layer is connected to the sludge evaporation chamber 12 below it through a pipeline, and the end of the heat source medium flow passage 13 is provided with a discharge pipe and an exhaust pipe which communicate with the outside. tube.
具体工作流程如下:  The specific workflow is as follows:
步骤一: 将污泥送入污泥二次蒸汽回用干燥装置料斗。  Step 1: The sludge is sent to the sludge secondary steam to be reused in the drying device hopper.
步骤二: 利用料斗下方的螺旋输送机将污泥定量连续送入一级污泥蒸 发室。  Step 2: The sludge is continuously fed into the primary sludge evaporation chamber by means of a screw conveyor under the hopper.
步骤三: 一级污泥蒸发室中的污泥借助搅拌臂的搅拌输送, 将污泥平 铺在加热板上并不断翻动, 污泥沿加热板边运动边吸收一级加热室热能, 蒸发出二次蒸汽, 并将污泥翻动到中心出料口, 由重力作用掉到二级蒸发 室。 一级蒸发室的二次蒸汽可直接由管路导出。 污泥得到了一级干燥。 Step 3: The sludge in the primary sludge evaporation chamber is transported by means of agitating arms, and the sludge is flattened. Spread on the heating plate and continuously flip, the sludge absorbs the heat energy of the first heating chamber while moving along the heating plate, evaporates the secondary steam, and flips the sludge to the center discharge port, and drops to the secondary evaporation chamber by gravity. . The secondary vapor of the primary evaporation chamber can be directly exported from the pipeline. The sludge was first dried.
步骤四: 二级蒸发室中的污泥借助搅拌臂的搅拌输送, 将污泥平铺在 加热板上并不断翻动, 污泥沿加热板边运动边吸收二级加热室热能, 蒸发 出二次蒸汽, 并将污泥翻动到边沿出料口, 由重力作用掉到三级蒸发室。 该级蒸发室二次蒸汽通过管路连通一级加热室的热源介质流道的起始端。 由此, 该级二次蒸汽被导入一级加热室回用作为热源参与加热板换热, 换 热后的尾气由排气管导出, 疏水由放水管导出。 污泥得到了二级干燥。  Step 4: The sludge in the secondary evaporation chamber is conveyed by the stirring of the stirring arm, the sludge is laid on the heating plate and continuously turned, and the sludge absorbs the heat energy of the secondary heating chamber while moving along the heating plate, and evaporates twice. The steam is turned and the sludge is turned to the edge discharge port and dropped by gravity into the tertiary evaporation chamber. The secondary vapor of the stage evaporation chamber is connected to the beginning end of the heat source medium flow path of the primary heating chamber through a pipeline. Thus, the secondary steam of this stage is introduced into the primary heating chamber for reuse as a heat source to participate in the heat exchange of the heating plate, and the exhaust gas after the heat exchange is led out by the exhaust pipe, and the hydrophobicity is led out by the discharge pipe. The sludge was dried in two stages.
步骤五: 三级蒸发室中的污泥借助搅拌臂的搅拌输送, 将污泥平铺在 加热板上并不断翻动, 污泥沿加热板边运动边吸收三级加热室热能, 蒸发 出二次蒸汽, 并将污泥翻动到中心出料口, 由重力作用掉到料仓, 干燥产 品经螺旋输送机送出, 最终完成整个污泥干燥过程。 该级蒸发室二次蒸汽 通过管路连通二级加热室的热源介质流道的起始端。 由此, 该级二次蒸汽 被导入二级加热室回用作为热源参与加热板换热, 换热后的尾气由排气管 导出,疏水由放水管导出。污泥得到了三级干燥。 由于该级加热室为末级, 需要通过管路连接外界的外加热源如蒸汽、 导热油、 烟气和热风等。  Step 5: The sludge in the third-stage evaporation chamber is conveyed by the stirring of the stirring arm, and the sludge is laid on the heating plate and continuously turned. The sludge absorbs the heat energy of the third-stage heating chamber while moving along the heating plate, and evaporates twice. The steam is turned to the center discharge port, and the gravity is dropped to the silo, and the dried product is sent out by the screw conveyor to complete the entire sludge drying process. The secondary vapor of the stage evaporation chamber is connected to the beginning of the heat source medium flow path of the secondary heating chamber through a pipeline. Thus, the secondary steam of the stage is introduced into the secondary heating chamber for reuse as a heat source to participate in the heat exchange of the heating plate, and the exhaust gas after the heat exchange is led out by the exhaust pipe, and the hydrophobicity is led out by the discharge pipe. The sludge was dried in three stages. Since the heating chamber of this stage is the final stage, it is necessary to connect external external heating sources such as steam, heat transfer oil, flue gas and hot air through pipes.
本实用新型的干燥装置, 实现污泥定向换热行程的搅拌输送机械, 根 据污泥处理量的需要, 可由电机带动多轴组合转动而实现污泥定向换热行 程需要, 搅拌输送机构的组合布置犹如将啮合齿轮组各自拉开适当的距 离, 使得机构相互不接触而搅拌面又有一定的叠加。 本发明的干燥装置, 根据污泥性质、 干燥产品含水率、 干燥产品形态、 外加热源供应条件和场 地布置的需要, 可以设置成卧式或不同的级数。  The drying device of the utility model realizes the agitation conveying mechanism of the directional heat exchange stroke of the sludge. According to the demand of the sludge treatment amount, the multi-axis combined rotation of the motor can be realized to realize the directional heat exchange stroke of the sludge, and the combined arrangement of the agitation conveying mechanism It is like pulling the meshing gear sets apart by an appropriate distance so that the mechanisms do not touch each other and the agitating surfaces have a certain superposition. The drying apparatus of the present invention can be set to a horizontal or different number of stages depending on the nature of the sludge, the moisture content of the dried product, the form of the dried product, the supply conditions of the external heating source, and the arrangement of the field.
本实用新型的轴型搅拌污泥多级二次蒸汽回用干燥装置与现有污泥 干燥装置相比, 其优点在于:  Compared with the existing sludge drying device, the shaft type agitated sludge multi-stage secondary steam reuse drying device of the utility model has the advantages of:
( 1 ) 采用轴型搅拌输送结构,并能实现污泥二次蒸汽回用于多级干燥, 系统简单可靠, 装置装机功率低, 节省厂用电。  (1) The shaft type agitation conveying structure is adopted, and the secondary steam of the sludge can be reused for multi-stage drying, the system is simple and reliable, the installation power of the device is low, and the power consumption of the plant is saved.
(2 ) 污泥二次蒸汽导出流程短, 阻力小, 不易在蒸发室中重新冷凝液 化而使污泥返潮。  (2) The secondary steam exporting process of sludge is short, the resistance is small, and it is not easy to recondense and liquefy in the evaporation chamber to make the sludge return to moisture.
(3 ) 搅拌面覆盖各级加热板, 板面不易粘结。  (3) The mixing surface covers the heating plates at all levels, and the surface of the plate is not easy to bond.
(4) 装置含氧量非常低, 降低了粉尘自燃和爆炸等危险, 外加热源间 08000160 接加热, 尾气处理量很少。 (4) The oxygen content of the device is very low, which reduces the risk of spontaneous combustion and explosion of dust. 08000160 After heating, the amount of exhaust gas treatment is small.
(5) 多级蒸发室的污泥二次蒸汽能量得到充分利用, 使得污泥干燥利 用外加热源耗量极少, 节能效果非常显著。  (5) The secondary steam energy of the sludge in the multi-stage evaporation chamber is fully utilized, so that the sludge is dried and the external heating source consumes very little energy, and the energy saving effect is very remarkable.
(6) 污泥进入千燥装置前无需造粒, 使得干燥系统大大简化。  (6) The granulation is not required before the sludge enters the drying device, which greatly simplifies the drying system.
(7) 干燥装置处于负压运行状态, 无臭气外泄。  (7) The drying device is in a negative pressure operation state, and no odor is leaked.
(8) 物料适应性广, 对多种化工产品和矿产品的干燥 (含造粒) 同样 适用, 尤其适合于浆状物料。  (8) The material has wide adaptability and is suitable for drying (including granulation) of various chemical products and mineral products, especially suitable for slurry materials.
(9) 调节方便。 通过改变级数、 搅拌输送机构型式、 搅拌速度等, 调 节污泥物料的停留时间, 达到干燥产品的要求。  (9) Easy to adjust. By changing the number of stages, the type of mixing mechanism, the stirring speed, etc., the residence time of the sludge material is adjusted to meet the requirements of the dry product.

Claims

权 利 要 求 书 Claim
1、 轴型搅拌污泥多级二次蒸汽回用干燥装置, 包括筒型的本体, 其 特征在于本体顶部设置有给料机构, 给料机构上设置有料斗; 本体底部收 缩成料仓, 料仓的底部设置有出料机构; 本体内沿轴心设置有搅拌轴, 搅 拌轴与电机配合连接; 多层空心塔板平面设置在本体内, 空心塔板边沿与 本体内壁配合并固定连接, 每层空心塔板上方空间为污泥蒸发室; 空心塔 板作为污泥加热室包括顶部加热板和底部分隔板,加热板与分隔板通过竖 直方向的折流板连接; 所述的折流板为螺旋形或迷宫形, 加热板、 分隔板 和折流板围合形成螺旋形或迷宫形热源介质流道; 底层的空心塔板中的热 源介质流道的起始端通过管路与热源连通, 顶层的污泥蒸发室通过管路与 外界连通; 其余各层空心塔板中的热源介质流道的起始端与其下方的污泥 蒸发室通过管路连通; 多层空心塔板间隔设置有中心出料口和边沿出料 口, 中心出料口设置在空心塔板的中心位置, 边沿出料口设置在空心塔板 的边沿位置; 每层空心塔板上部设置有搅拌臂, 搅拌臂与搅拌轴配合固定 连接。 1. A shaft-type agitated sludge multi-stage secondary steam reuse drying device, comprising a tubular body, characterized in that a feeding mechanism is arranged at the top of the body, and a hopper is arranged on the feeding mechanism; the bottom of the body is shrunk into a silo, the material The bottom of the silo is provided with a discharging mechanism; the stirring shaft is arranged along the shaft center, and the stirring shaft is coupled with the motor; the multi-layer hollow tray is arranged in the body, and the edge of the hollow tray is matched with the inner wall and fixedly connected. The space above the layer hollow tray is a sludge evaporation chamber; the hollow tray serves as a sludge heating chamber including a top heating plate and a bottom portion partition plate, and the heating plate and the partition plate are connected by a baffle plate in a vertical direction; The flow plate is spiral or labyrinth, and the heating plate, the partition plate and the baffle are enclosed to form a spiral or labyrinth heat source medium flow channel; the starting end of the heat source medium flow channel in the bottom hollow plate is through the pipeline The heat source is connected, and the sludge evaporation chamber of the top layer communicates with the outside through the pipeline; the starting end of the heat source medium flow passage in the remaining hollow trays and the sludge evaporation chamber below it pass through the tube Connected; the multi-layer hollow trays are arranged with a central discharge opening and a rim discharge opening, the central discharge opening is arranged at the center of the hollow tray, and the edge discharge opening is arranged at the edge of the hollow tray; each layer of hollow tower A stirring arm is arranged on the upper part, and the stirring arm is fixedly connected with the stirring shaft.
2、 如权利要求 1所述的轴型搅拌污泥多级二次蒸汽回用干燥装置, 其特征在于所述的给料机构为螺旋输送机、 刮板输送机、 链板输送机、 皮 带输送机、 活塞推杆中的一种。  2. The shaft type agitated sludge multi-stage secondary steam reuse drying device according to claim 1, wherein the feeding mechanism is a screw conveyor, a scraper conveyor, a chain conveyor, and a belt conveyor. One of the machine and piston push rods.
3、 如权利要求 1所述的轴型搅拌污泥多级二次蒸汽回用干燥装置, 其特征在于所述的出料机构为螺旋输送机、 刮板输送机、 链板输送机、 皮 带输送机、 活塞推杆中的一种。  3. The shaft type agitating sludge multi-stage secondary steam recycling drying device according to claim 1, wherein the discharging mechanism is a screw conveyor, a scraper conveyor, a chain conveyor, and a belt conveyor. One of the machine and piston push rods.
4、 如权利要求 1所述的轴型搅拌污泥多级二次蒸汽回用干燥装置, 其特征在于所述的各层空心塔板中的热源介质流道的终止端设置有与外 界连通的放水管和排气管。  4. The shaft-type agitated sludge multi-stage secondary steam reuse drying device according to claim 1, wherein the end of the heat source medium flow passage in each of the hollow trays is provided with a connection with the outside. Drain pipe and exhaust pipe.
5、 如权利要求 1所述的轴型搅拌污泥多级二次蒸汽回用干燥装置, 其特征在于所述的料仓内设置有刮料臂, 刮料臂与搅拌轴固定连接, 并且 与料仓侧壁位置对应。  The shaft-type agitated sludge multi-stage secondary steam reuse drying device according to claim 1, wherein the silo is provided with a scraper arm, and the scraper arm is fixedly connected with the stirring shaft, and The position of the side wall of the silo corresponds.
6、 如权利要求 1所述的轴型搅拌污泥多级二次蒸汽回用干燥装置, 其特征在于所述的搅拌臂为耙子, 其中设置有中心出料口的空心塔板上方 的耙子的耙钉向中心倾斜, 设置有边沿出料口的空心塔板上方的耙子的耙 钉向边沿倾斜。  6. The shaft-type agitated sludge multi-stage secondary steam reuse drying device according to claim 1, wherein the stirring arm is a tweezers, wherein the tweezers above the hollow tray provided with the central discharge port are provided. The dowel is inclined toward the center, and the dowel of the tweezers above the hollow tray provided with the edge discharge port is inclined toward the edge.
7、 如权利要求 1所述的轴型搅拌污泥多级二次蒸汽回用干燥装置, 其特征在于所述的搅拌臂为刮刀, 其中设置有中心出料口的空心塔板上方 的刮刀的刀刃在内弯处, 设置有边沿出料口的空心塔板上方的刮刀的刀刃 在外弯处。  7. The shaft-type agitated sludge multi-stage secondary steam reuse drying apparatus according to claim 1, wherein the stirring arm is a scraper, wherein a scraper above the hollow tray provided with a central discharge port is provided. At the inner bend of the blade, the blade of the blade above the hollow tray provided with the edge discharge opening is at the outer bend.
PCT/CN2008/000160 2007-01-26 2008-01-23 Shaft type stirring mud multilevel secondary steam recycling drying device WO2008092373A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN200720105964.8 2007-01-26
CNU2007201059648U CN201000259Y (en) 2007-01-26 2007-01-26 Drying mechanism for axis type stirring sludge multilevel indirect steam back

Publications (1)

Publication Number Publication Date
WO2008092373A1 true WO2008092373A1 (en) 2008-08-07

Family

ID=39014663

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/000160 WO2008092373A1 (en) 2007-01-26 2008-01-23 Shaft type stirring mud multilevel secondary steam recycling drying device

Country Status (2)

Country Link
CN (1) CN201000259Y (en)
WO (1) WO2008092373A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201000259Y (en) * 2007-01-26 2008-01-02 张志霄 Drying mechanism for axis type stirring sludge multilevel indirect steam back
CN102815852A (en) * 2012-08-16 2012-12-12 昆明理工大学 Complete processing unit for sludge drying
CN102914134A (en) * 2012-10-15 2013-02-06 曾应祥 Superheat steam drying device
CN103964671B (en) * 2013-01-25 2015-12-09 宝山钢铁股份有限公司 A kind of mud drying device and utilize the method for this device dewatered sludge
CN103588379A (en) * 2013-11-25 2014-02-19 成都绿源新创环保科技有限公司 Vertical sludge dryer
US10527349B2 (en) * 2014-06-12 2020-01-07 Hedinn Hf Apparatus for cooking and drying organic material
CN104819474B (en) * 2015-05-12 2017-01-25 江苏中世环境科技股份有限公司 Efficient smoke-free carbonization device
CN106382801A (en) * 2016-10-17 2017-02-08 无锡市日升化工有限公司 PVC processing agent drying oven capable of conducting stirring and drying
CN108627027A (en) * 2017-03-20 2018-10-09 熙凯法人株式会社 Coffee original beans cooling device
CN107445446B (en) * 2017-09-22 2019-03-26 西安吉利电子化工有限公司 A kind of dry installation for fermenting of column plate type

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905757A (en) * 1973-05-21 1975-09-16 Nichols Eng & Res Corp Apparatus and method for distributing material being processed over a furnace hearth floor
JPS56120310A (en) * 1980-02-29 1981-09-21 Teijin Ltd Apparatus for preliminary crystallization of chips of thermoplastic polymer
CN2048170U (en) * 1989-04-09 1989-11-22 张晓光 Stratified air-stream drying apparatus
CN2081517U (en) * 1990-04-04 1991-07-24 王连顺 Tray dryer
CN2149595Y (en) * 1993-01-06 1993-12-15 温州市娄桥轻化设备厂 Multi-layer disc continuous vacuum drying machine
CN2160867Y (en) * 1993-06-04 1994-04-06 赵慕鸿 Vibration dryer
CN2296495Y (en) * 1997-02-03 1998-11-04 哈尔滨市机械电子应用技术研究所 Heat pipe drier
CN201000259Y (en) * 2007-01-26 2008-01-02 张志霄 Drying mechanism for axis type stirring sludge multilevel indirect steam back

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905757A (en) * 1973-05-21 1975-09-16 Nichols Eng & Res Corp Apparatus and method for distributing material being processed over a furnace hearth floor
JPS56120310A (en) * 1980-02-29 1981-09-21 Teijin Ltd Apparatus for preliminary crystallization of chips of thermoplastic polymer
CN2048170U (en) * 1989-04-09 1989-11-22 张晓光 Stratified air-stream drying apparatus
CN2081517U (en) * 1990-04-04 1991-07-24 王连顺 Tray dryer
CN2149595Y (en) * 1993-01-06 1993-12-15 温州市娄桥轻化设备厂 Multi-layer disc continuous vacuum drying machine
CN2160867Y (en) * 1993-06-04 1994-04-06 赵慕鸿 Vibration dryer
CN2296495Y (en) * 1997-02-03 1998-11-04 哈尔滨市机械电子应用技术研究所 Heat pipe drier
CN201000259Y (en) * 2007-01-26 2008-01-02 张志霄 Drying mechanism for axis type stirring sludge multilevel indirect steam back

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHANG S. ET AL.: "Analysis of Radio-Drying in Plate Type Dryer", COAL PREPARATION TECHNOLOGY, no. 4, August 2003 (2003-08-01), pages 13 - 14 *

Also Published As

Publication number Publication date
CN201000259Y (en) 2008-01-02

Similar Documents

Publication Publication Date Title
CN1144013C (en) Process and apparatus for drying and heating
US7574816B2 (en) Counter flow cooling drier with integrated heat recovery
CN101774743B (en) Latent heat recoverable multi-phase change sludge drying method and device
RU2331829C2 (en) Facility for friable production drying by superheated steam
CN104066816B (en) Dry distillation of coal device
CA1252290A (en) Method of drying particulate material
CN101731327B (en) Centralized drying system of high-humidity grain and drying method thereof
SE464262B (en) SET AND APPLIANCE FOR DRYING OF LOW-CARBED COALS WITH WATER-STEAMED DRIVE SWEDEN BED
KR100685385B1 (en) Materials salvage apparatus for treating sewage sludge
BE1015743A3 (en) Device for processing biomass and method applied thereby.
US20080251438A1 (en) Apparatus for fermenting and drying at high speed
CN101975388B (en) Biomass boiler system capable of saving energy and reducing emission
CN102690035B (en) System and process for drying sludge using pulse combustion internal heating fluid bed
CN101870548A (en) Sludge stirring and granulating rotary drying device
JP5705858B2 (en) Method and apparatus for aerobically air drying sludge filter cake
CN101549945B (en) Set treatment device of sludge drying
CN206408078U (en) A kind of vacuum dehydration drying equipment
CN104087329B (en) Linkage spiral return-stroke type oil-sand distillation process system
CN102603937B (en) Flash drying and internal heated fluidized bed drying system and process special for chlorinated polyethylene
CN106242229B (en) Sludge dewatering treatment device
CN103693829A (en) Sludge treatment equipment and process
CN102674655A (en) Sludge harrow type drying method and device
CN103964671B (en) A kind of mud drying device and utilize the method for this device dewatered sludge
CN207394853U (en) A kind of life refuse high temperature pyrolysis installation
CN104891769B (en) Sludge drying and incineration system and method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08700708

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08700708

Country of ref document: EP

Kind code of ref document: A1