CN206156995U - Good oxygen mummification device of city domestic sewage excess sludge - Google Patents

Good oxygen mummification device of city domestic sewage excess sludge Download PDF

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CN206156995U
CN206156995U CN201621041569.3U CN201621041569U CN206156995U CN 206156995 U CN206156995 U CN 206156995U CN 201621041569 U CN201621041569 U CN 201621041569U CN 206156995 U CN206156995 U CN 206156995U
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sludge
pipe
domestic sewage
water
utility
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李琛
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Shaanxi University of Technology
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/20Sludge processing

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  • Activated Sludge Processes (AREA)

Abstract

The utility model discloses a good oxygen mummification device of city domestic sewage excess sludge, including a sludge drying section of thick bamboo, leaf agitator, reaction, electric heating and insulating cover, water collection tank, aeration tube seat, the ventilative orifice plate that permeates water, drain pipe, aeration pipe, apron, feed inlet, flapper, temperature sensor, humidity transducer, oxygen concentration sensor, blast pipe, condenser, cold condenser pipe, activated carbon adsorption column, tuber pipe, discharge gate, motor, air -blower, sludge bucket, tank. Compared with the prior art, the utility model discloses the required energy of sludge drying can be practiced thrift greatly in the mummification that utilizes microorganism aerobic fermentation heat to realize city domestic sewage excess sludge, additionally, the utility model has the advantages of the stink reliably, is easily managed and safeguards, has in simple structure, operation.

Description

一种城市生活污水剩余污泥好氧干化装置An aerobic drying device for residual sludge of urban domestic sewage

技术领域technical field

本实用新型涉及一种污泥干化装置,属固体废弃物处理领域,尤其涉及一种城市生活污水剩余污泥好氧干化装置。The utility model relates to a sludge drying device, which belongs to the field of solid waste treatment, in particular to an aerobic drying device for residual sludge of urban domestic sewage.

背景技术Background technique

城市生活污水剩余污泥是污水处理厂处理污水所产生的副产品,随着城镇化进程的加快和城镇农村生活污水处理厂的兴建,生活污水剩余污泥产量呈现激增趋势,成为目前城市固体废弃物的主要组成部分,由于城市生活污水剩余污泥含水率较高,严重制约了运输流通和资源化利用。与其他的工业固体废弃物不同,城市污水处理厂剩余污泥具有含水率大,富含营养元素、有机质,具有较大的利用前景,因此,通过合理的技术措施,有效削减剩余污泥含水率,促进剩余污泥资源化利用是城市污水处理厂剩余污泥资源化利用的必由之路。目前,城市污水处理厂剩余污泥经压滤等措施后,能在一定程度上削减一定的含水量,但是,这些技术措施目前对结合水的脱除却无能为力。为了脱除剩余污泥中的结合水,通常利用热能将其干化,或者与燃料混合后焚烧,这些技术措施存在的问题是:能耗高,会向大气环境释放有毒有害气体,剩余污泥中的资源难以有效率用或者利用率太低。The remaining sludge of urban domestic sewage is a by-product of sewage treatment in sewage treatment plants. With the acceleration of urbanization and the construction of domestic sewage treatment plants in urban and rural areas, the production of residual sludge in domestic sewage has shown a sharp increase and has become the current urban solid waste. Due to the high moisture content of the remaining sludge of urban domestic sewage, it seriously restricts the transportation, circulation and resource utilization. Different from other industrial solid wastes, the residual sludge of urban sewage treatment plants has a high water content, rich in nutrients and organic matter, and has great utilization prospects. Therefore, through reasonable technical measures, the water content of excess sludge can be effectively reduced , Promoting the resource utilization of excess sludge is the only way for resource utilization of excess sludge in urban sewage treatment plants. At present, the remaining sludge in urban sewage treatment plants can reduce a certain amount of water content to a certain extent after pressure filtration and other measures. However, these technical measures are currently powerless to remove bound water. In order to remove the bound water in the excess sludge, it is usually dried by using heat energy, or mixed with fuel and then incinerated. The problems of these technical measures are: high energy consumption, release of toxic and harmful gases to the atmosphere, and excess sludge The resources in it are difficult to use efficiently or the utilization rate is too low.

由于剩余污泥中含有大量的微生物菌体,如果提供适当的条件,使微生物得以繁殖,并利用微生物生长繁殖所产生的发酵热对污泥进行干化,不仅能够大量的减少能源消耗,而且可以减少向大气环境所释放的有毒有害物质的量。Since the remaining sludge contains a large number of microbial cells, if appropriate conditions are provided to allow the microorganisms to reproduce and use the fermentation heat generated by the growth and reproduction of microorganisms to dry the sludge, not only can a large amount of energy consumption be reduced, but also Reduce the amount of toxic and harmful substances released into the atmosphere.

实用新型内容Utility model content

本实用新型的目的就在于为了解决现有城市生活污水剩余污泥干化装置能耗高、占地面积大、易产生臭气、需额外添加生物菌剂等缺点而提供一种城市生活污水剩余污泥好氧干化装置。The purpose of the utility model is to provide a residual sludge drying device for urban domestic sewage to solve the shortcomings of the existing urban domestic sewage residual sludge drying device, such as high energy consumption, large floor area, easy to generate odor, and the need to add additional biological agents. Sludge aerobic drying device.

本实用新型通过以下技术方案来实现上述目的:The utility model realizes above-mentioned purpose through following technical scheme:

一种城市生活污水剩余污泥好氧干化装置,包括:污泥干化筒、叶式搅拌器、反应槽、电加热保温套、汇水槽、曝气管槽、透水透气孔板、排水管、曝气管、盖板、进料口、锁气器、温度传感器、湿度传感器、氧浓度传感器、排气管、冷凝器、冷凝水管、活性炭吸附柱、风管、出料口、电动机、鼓风机、污泥斗、储水池。An aerobic drying device for residual sludge of urban domestic sewage, comprising: sludge drying cylinder, blade agitator, reaction tank, electric heating insulation cover, water collection tank, aeration pipe tank, water-permeable and air-permeable orifice plate, and drainage pipe , aeration pipe, cover plate, feed inlet, air lock, temperature sensor, humidity sensor, oxygen concentration sensor, exhaust pipe, condenser, condensate pipe, activated carbon adsorption column, air pipe, discharge outlet, motor, blower , sludge hopper, storage tank.

其中,污泥干化筒为本实用新型的主体,剩余污泥中的微生物在合适的条件下在污泥干化筒中繁殖,释放出发酵热,对剩余污泥进行干化,为了便于检修和维护,污泥干化筒分为上下两部分,下部为反应槽,上部为盖板。鼓风机一方面为微生物的生长繁体提供好氧条件,供应充足的氧气,另一方面,可以加速剩余污泥表面水份的蒸发,加速剩余污泥的干化过程;叶式搅拌器沿轴向设置于污泥干化筒的中心,并由电动机为叶式搅拌器提供动力,便于污泥干化筒中污泥的混料出料;盖板、锁气器、活性炭吸附柱为污泥干化筒可有效减少污泥干化期间向环境中释放臭味及有毒有害气体;电加热保温套、鼓风机、曝气管槽、温度传感器、湿度传感器、氧浓度传感器为微生物的生长繁殖提供合适的环境条件;排气管用于排放剩余空气、蒸发的水蒸气、微生物好氧发酵产生的气体等,并配合冷凝器、冷凝水管实现水蒸气的凝结收集;汇水槽和排水管用于收集、输送污泥干化筒污泥干化筒中所产生的渗流水和冷凝水;透水透气孔板则在保证透水透气的前提下,减少污泥对槽的影响;污泥斗用于储存干化后的污泥;储水池用于收集排水管、冷凝水管排出的水。Among them, the sludge drying cylinder is the main body of the utility model. The microorganisms in the excess sludge reproduce in the sludge drying cylinder under suitable conditions, release fermentation heat, and dry the excess sludge. In order to facilitate maintenance and Maintenance, the sludge drying cylinder is divided into upper and lower parts, the lower part is the reaction tank, and the upper part is the cover plate. On the one hand, the blower provides aerobic conditions for the growth of microorganisms and supplies sufficient oxygen; on the other hand, it can accelerate the evaporation of water on the surface of the remaining sludge and accelerate the drying process of the remaining sludge; the blade agitator is arranged along the axial direction It is located in the center of the sludge drying cylinder, and the motor provides power for the blade agitator, which is convenient for the mixing and discharging of sludge in the sludge drying cylinder; the cover plate, air locker and activated carbon adsorption column are the sludge drying cylinder It can effectively reduce the release of odor and toxic and harmful gases into the environment during sludge drying; electric heating insulation jacket, blower, aeration pipe tank, temperature sensor, humidity sensor, and oxygen concentration sensor provide suitable environmental conditions for the growth and reproduction of microorganisms ; The exhaust pipe is used to discharge the remaining air, evaporated water vapor, gas produced by microbial aerobic fermentation, etc., and cooperate with the condenser and condensate pipe to realize the condensation and collection of water vapor; the sink and drain pipe are used to collect and transport sludge for drying The seepage water and condensed water produced in the sludge drying cylinder; the water-permeable and air-permeable orifice plate can reduce the impact of sludge on the tank under the premise of ensuring water permeability and ventilation; the sludge hopper is used to store the dried sludge; The sink is used to collect the water discharged from the drain pipe and condensate pipe.

进料口与锁气器使用法兰密封连接,锁气器法兰密封连接于盖板的前端顶部。盖板与反应槽采用机械密封铰链链接,并且周边采用凹凸面橡胶石棉条密封。叶式搅拌器沿污泥干化筒的轴向,设置于污泥干化筒的中心位置,采用轴承机械密封方式密封。汇水槽沿污泥干化筒轴向设置于反应槽底部。曝气管槽共两个,沿污泥干化筒轴向设置,位于汇水槽的两侧。透水透气孔板设置于曝气管槽和汇水槽的正上方,铆接与反应槽内壁面。温度传感器、湿度传感器、氧浓度传感器均铆接与盖板顶部内壁面合适位置。本实用新型中的管道与设备间均以法兰密封连接。The feed inlet and the air locker are connected by flange sealing, and the flange of the air locker is sealingly connected to the top front end of the cover plate. The cover plate and the reaction tank are connected by mechanical seal hinges, and the periphery is sealed with rubber asbestos strips with concave and convex surfaces. The blade agitator is arranged in the center of the sludge drying cylinder along the axial direction of the sludge drying cylinder, and is sealed by a bearing mechanical seal. The water collection tank is arranged at the bottom of the reaction tank along the axial direction of the sludge drying cylinder. There are two aeration pipe tanks, which are arranged along the axis of the sludge drying cylinder and located on both sides of the water collection tank. The water-permeable and air-permeable orifice plate is arranged directly above the aeration pipe tank and the water collection tank, and is riveted to the inner wall of the reaction tank. The temperature sensor, the humidity sensor, and the oxygen concentration sensor are all riveted to a proper position on the inner wall surface of the top of the cover plate. In the utility model, the pipes and the equipment are all sealed and connected by flanges.

本实用新型的有益效果在于:The beneficial effects of the utility model are:

本实用新型是一种城市生活污水剩余污泥好氧干化装置,与现有技术相比,本实用新型利用微生物好氧发酵热实现城市生活污水剩余污泥的干化,可大大节约污泥干化所需要的能源;同时,本实用新型结构简单,易于管理和维护,另外,整个***不仅密封良好,同时设置有臭气吸附装置,减少了城市生活污水剩余污泥对大气环境的污染。进一步的,本实用新型通过温度传感器、湿度传感器、氧气浓度传感器和水位传感器,不仅可以保证城市生活污水剩余污泥干化装置的高效稳定运行,而且使城市生活污水剩余污泥干化装置的自动控制成为可能。The utility model is an aerobic drying device for residual sludge of urban domestic sewage. Compared with the prior art, the utility model utilizes the heat of microbial aerobic fermentation to dry the residual sludge of urban domestic sewage, which can greatly save sludge At the same time, the utility model has a simple structure and is easy to manage and maintain. In addition, the whole system is not only well sealed, but also equipped with an odor adsorption device, which reduces the pollution of the urban domestic sewage residual sludge to the atmospheric environment. Furthermore, the utility model can not only ensure the efficient and stable operation of the residual sludge drying device of urban domestic sewage through the temperature sensor, humidity sensor, oxygen concentration sensor and water level sensor, but also make the residual sludge drying device of urban domestic sewage automatic Control is possible.

本实用新型结构简单,占地小,易于维护,运行稳定,能耗底,无不良气味产生,安全,卫生、方便。The utility model has the advantages of simple structure, small footprint, easy maintenance, stable operation, low energy consumption, no bad smell, safety, sanitation and convenience.

附图说明Description of drawings

图1是本实用新型的结构示意图。Fig. 1 is a structural representation of the utility model.

图2是本实用新型的左视图。Fig. 2 is a left view of the utility model.

图中:1-污泥干化筒、10-叶式搅拌器、11-反应槽、111-电加热保温套、112-汇水槽、113-曝气管槽、114-透水透气孔板、115-排水管、116-曝气管、12-盖板、121-进料口、1211-锁气器、122-温度传感器、123-湿度传感器、124-氧浓度传感器、125-排气管、126-冷凝器、127-冷凝水管、128-活性炭吸附柱、13-风管、14-出料口、2-电动机、3-鼓风机、4-污泥斗、5-储水池。In the figure: 1-sludge drying cylinder, 10-blade agitator, 11-reaction tank, 111-electric heating insulation cover, 112-water collection tank, 113-aeration pipe tank, 114-permeable and ventilating orifice plate, 115 -drain pipe, 116-aeration pipe, 12-cover plate, 121-feed inlet, 1211-air locker, 122-temperature sensor, 123-humidity sensor, 124-oxygen concentration sensor, 125-exhaust pipe, 126 -Condenser, 127-Condensed water pipe, 128-Activated carbon adsorption column, 13-Air duct, 14-Outlet, 2-Motor, 3-Blower, 4-Sludge hopper, 5-Storage tank.

具体实施方式detailed description

下面结合附图对本实用新型作进一步说明:Below in conjunction with accompanying drawing, the utility model is further described:

如图1~2所示:本实用新型包括:污泥干化筒1、叶式搅拌器10、反应槽11、电加热保温套111、汇水槽112、曝气管槽113、透水透气孔板114、排水管115、曝气管116、盖板12、进料口121、锁气器1211、温度传感器122、湿度传感器123、氧浓度传感器124、排气管125、冷凝器126、冷凝水管127、活性炭吸附柱128、风管13、出料口14、电动机2、鼓风机3、污泥斗4、储水池5。As shown in Figures 1 and 2: the utility model includes: sludge drying cylinder 1, blade agitator 10, reaction tank 11, electric heating insulation cover 111, water collection tank 112, aeration pipe tank 113, water-permeable and air-permeable orifice plate 114, drainage pipe 115, aeration pipe 116, cover plate 12, feed port 121, air locker 1211, temperature sensor 122, humidity sensor 123, oxygen concentration sensor 124, exhaust pipe 125, condenser 126, condensed water pipe 127 , activated carbon adsorption column 128, air duct 13, discharge port 14, motor 2, blower 3, sludge bucket 4, water storage tank 5.

如图1~2所示:城市污水处理厂污泥脱水车间初步脱水后的污泥先后经进料口121、锁气器1211进入反应槽11中,污泥经叶式搅拌器10搅拌均和后分布于反应槽11中,此时,根据温度传感器122所监测的问题和氧气传感器124所监测的氧气浓度,合理开启电加热保温套111和鼓风机3,空气经鼓风机3、风管13和曝气管116向污泥干化筒1中供应氧气,使污泥干化筒1中保持合理的温度和氧气浓度,污泥中的好氧微生物在合理的温度、湿度和氧气浓度的情况下,利用剩余污泥中的营养物质、有机物等得以大量繁殖,繁殖过程中会消耗污泥中的部分水,发酵热会使污泥中的部分水份蒸发进入空气中,污泥中的部分水在重力作用下脱离污泥,直接进入汇水槽112中,变成蒸汽的水份有部分遇到盖板11后凝结为水滴,汇集于汇水槽112中,经排水管115排入储水池5中,另外还有大部分水蒸气来不及凝结,则随空气进入排气管125进入冷凝器126中冷凝为液态水,并经冷凝水管127排入储水池5中,污泥干化过程中会有臭气产生,另外,微生物好氧发酵也会产生臭味和少量有毒有害气体,这些气体经排气管125送入活性炭吸附柱128中,有毒有害气体及臭味被活性炭吸附去除后排入大气环境,随着好氧发酵和污泥干化的进行,温度、湿度、氧气浓度均呈现出规律性变化,进而判断污泥干化情况,待污泥干化符合要求后,电动机2启动,干化合格的污泥在叶式搅拌器10的推动下由出料口14排出,并收集于污泥斗4中,适时外运利用。As shown in Figures 1 and 2: the sludge after initial dehydration in the sludge dehydration workshop of the urban sewage treatment plant enters the reaction tank 11 through the feed port 121 and the air lock 1211 successively, and the sludge is stirred and blended by the blade mixer 10 Afterwards, it is distributed in the reaction tank 11. At this time, according to the problem monitored by the temperature sensor 122 and the oxygen concentration monitored by the oxygen sensor 124, the electric heating insulation cover 111 and the blower 3 are opened reasonably, and the air passes through the blower 3, the air duct 13 and the exposure chamber. The air pipe 116 supplies oxygen to the sludge drying cylinder 1, so that the sludge drying cylinder 1 maintains a reasonable temperature and oxygen concentration, and the aerobic microorganisms in the sludge are at a reasonable temperature, humidity and oxygen concentration. Nutrients and organic matter in the remaining sludge can be used for mass reproduction, and part of the water in the sludge will be consumed during the reproduction process. The fermentation heat will cause part of the water in the sludge to evaporate into the air, and part of the water in the sludge will be in the air. Under the action of gravity, the sludge is separated from the sludge and directly enters the sump 112. Some of the water that becomes steam condenses into water droplets after encountering the cover plate 11, collects in the sump 112, and is discharged into the water storage tank 5 through the drain pipe 115. In addition, most of the water vapor has no time to condense, and then enters the exhaust pipe 125 with the air and enters the condenser 126 to condense into liquid water, and is discharged into the water storage tank 5 through the condensed water pipe 127, and there will be an odor during the sludge drying process. In addition, microbial aerobic fermentation will also produce odor and a small amount of toxic and harmful gases. These gases are sent into the activated carbon adsorption column 128 through the exhaust pipe 125, and the toxic and harmful gases and odors are discharged into the atmosphere after being adsorbed and removed by activated carbon. With the progress of aerobic fermentation and sludge drying, the temperature, humidity, and oxygen concentration all show regular changes, and then judge the sludge drying situation. After the sludge drying meets the requirements, the motor 2 is started, and the drying is qualified. The sludge is discharged from the discharge port 14 under the impetus of the blade agitator 10, and is collected in the sludge hopper 4 for timely transportation and utilization.

Claims (2)

1. aerobic desiccation apparatus of a kind of city domestic sewage excess sludge, it is characterised in that:Including:Sludge drying cylinder(1), leaf formula Agitator(10), reactive tank(11), electrical heat tracing set(111), catchment tray(112), aeration tube seat(113), water-permeable and air permeable hole Plate(114), drainpipe(115), aeration tube(116), cover plate(12), charging aperture(121), flapper(1211), temperature sensor (122), humidity sensor(123), oxygen concentration sensor(124), blast pipe(125), condenser(126), condensate pipe (127), active carbon adsorption column(128), airduct(13), discharging opening(14), motor(2), air blast(3), sludge bucket(4), storage Pond(5), described sludge drying cylinder(1)It is divided into upper and lower two parts, bottom is reactive tank(11), top is cover plate(12), institute The cover plate stated(12)With described reactive tank(11)Using mechanical seal hinge links, and periphery adopts male and fomale(M&F) rubber asbestos Bar is sealed;Described reactive tank(11)Bottom is provided with vertically catchment tray(112)With aeration tube seat(113);Described catchment tray (112)Surface is provided with water-permeable and air permeable orifice plate(114);Described aeration tube seat(113)Surface is provided with water-permeable and air permeable hole Plate(114).
2. aerobic desiccation apparatus of a kind of city domestic sewage excess sludge according to claim 1, it is characterised in that:It is described Cover plate top inner wall face be provided with temperature sensor, humidity sensor, oxygen concentration sensor.
CN201621041569.3U 2016-09-07 2016-09-07 Good oxygen mummification device of city domestic sewage excess sludge Expired - Fee Related CN206156995U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109851400A (en) * 2019-03-06 2019-06-07 上海交通大学 The self-heating sludge superhigh temperature aerobic compost method and device of strain temperature control stage by stage
CN110040923A (en) * 2019-03-14 2019-07-23 杭州电子科技大学 Mud decrement machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109851400A (en) * 2019-03-06 2019-06-07 上海交通大学 The self-heating sludge superhigh temperature aerobic compost method and device of strain temperature control stage by stage
CN110040923A (en) * 2019-03-14 2019-07-23 杭州电子科技大学 Mud decrement machine

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