CN110316916A - Advanced treatment process and system for ecological sludge disposal - Google Patents
Advanced treatment process and system for ecological sludge disposal Download PDFInfo
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Classifications
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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
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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
- C02F11/008—Sludge treatment by fixation or solidification
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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
- C02F11/02—Biological treatment
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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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
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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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
- C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
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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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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Abstract
Description
技术领域technical field
本发明实施例涉及污泥处理技术领域，可利用于市政污泥及水利河道淤 泥，具体涉及一种污泥生态处置深度处理工艺及系统。The embodiment of the present invention relates to the technical field of sludge treatment, which can be used in municipal sludge and water conservancy river sludge, and specifically relates to a sludge ecological disposal advanced treatment process and system.
背景技术Background technique
随着经济的发展，城市人口的增加，工业废水与生活污水的排放量日益增 多，污泥的产出量迅速增加。污泥是废水处理过程中产生的沉淀物质，它包括 混入生活污水或工矿废水中的泥沙、纤维、动植物残体等固体颗粒及其凝结的 絮状物、各种胶体、有机质及吸附的金属元素、微生物、病菌、虫卵等物质的 综合固体物质，简单地说，它是污水的固体部分。随着我国城市化进程的加快， 市政基础设施建设正从短平快的发展路线逐渐向复杂、具有创造性的发展路线 过渡，城市污水处理率也逐年提高，城市的污泥产量急剧增加。未经适当处理 的污泥进入环境后，直接会给水体和大气带来二次污染，不但降低了污水处理系统的有效处理能力，而且对生态环境和人类活动构成了严重威胁。With the development of the economy and the increase of the urban population, the discharge of industrial wastewater and domestic sewage is increasing, and the output of sludge is increasing rapidly. Sludge is the sediment produced in the process of wastewater treatment, which includes solid particles such as sediment, fiber, animal and plant residues mixed in domestic sewage or industrial and mining wastewater, as well as coagulated flocs, various colloids, organic matter and adsorbed substances. The comprehensive solid matter of metal elements, microorganisms, germs, insect eggs and other substances. Simply put, it is the solid part of sewage. With the acceleration of urbanization in my country, the construction of municipal infrastructure is gradually transitioning from a short, flat and fast development route to a complex and creative development route. The urban sewage treatment rate is also increasing year by year, and the urban sludge output is increasing sharply. Untreated sludge entering the environment will directly cause secondary pollution to water bodies and the atmosphere, which not only reduces the effective treatment capacity of the sewage treatment system, but also poses a serious threat to the ecological environment and human activities.
因此，目前必须针对污泥的特性采用科学合理的无害化处理方式，使污泥 资源化、无害化、减量化，变废为宝；消除安全隐患、保证城市污泥处理设施 正常运行需要。净化环境，消除污泥对环境的污染和对人体健康的危害。Therefore, at present, it is necessary to adopt scientific and reasonable harmless treatment methods according to the characteristics of sludge, so as to make sludge resourceful, harmless, reduce, and turn waste into treasure; eliminate potential safety hazards and ensure the normal operation of urban sludge treatment facilities need. Purify the environment and eliminate the pollution of sludge to the environment and the harm to human health.
按照污泥处置无害化、减量化、资源化原则，对垃圾填埋场的污泥及市政 污泥进行及时有效的处置，使之符合环保要求。污泥深度处理工艺的选择应根 据进出泥含水率要求、处理厂规模以及当地气温、工程地质、环境等条件来慎 重选择，并考虑运行管理的方便性、可靠性。满足工艺要求的同时，优先选择 节省投资、运行费用较低的方案。污泥的处置方案不仅要有较好的环保效益和 社会效益，同时要考虑经济效益，以较少的投资获得较大的回报。各种处理工 艺都有一定的适用条件，工程设计时宜因地制宜，可适度引进一些新技术和新 设备，把污泥处理工程建设成为一个现代化的工程。In accordance with the principles of harmless sludge disposal, volume reduction, and resource utilization, timely and effective disposal of sludge from landfills and municipal sludge is made to meet environmental protection requirements. The selection of sludge advanced treatment process should be carefully selected according to the moisture content requirements of the incoming and outgoing sludge, the scale of the treatment plant, local temperature, engineering geology, environment and other conditions, and the convenience and reliability of operation management should be considered. While meeting the process requirements, give priority to the option of saving investment and lower operating costs. The sludge disposal plan should not only have better environmental and social benefits, but also consider economic benefits, so as to obtain greater returns with less investment. Various treatment processes have certain applicable conditions, and the project design should be adapted to local conditions. Some new technologies and new equipment can be introduced appropriately to make the sludge treatment project a modern project.
目前污泥处理的主要方法有以下几种：海洋投弃、污泥填满、干化和热处 理、污泥堆肥、焚烧后填满以及建材等综合利用等。污泥海洋投弃处置已经明 确地被禁止；污泥填埋并不能最终避免环境污染，只是延缓了环境污染产生的 时间，填埋行为面临着越来越严格的环境标准，这使得填埋处置方式的投资及 运营费用趋于大幅度增加，许多国家已经开始禁止污泥的土地填埋；干化和热 处理需要大量的能源，十分不经济，因此污泥堆肥后农用、深度脱水后焚烧、 建材综合资源化利用，是污泥处理处置的最终目标。At present, the main methods of sludge treatment are as follows: marine disposal, sludge filling, drying and heat treatment, sludge composting, filling after incineration, and comprehensive utilization of building materials. Sludge disposal at sea has been clearly prohibited; sludge landfill cannot ultimately avoid environmental pollution, but only delays the time of environmental pollution. Landfill behavior is facing increasingly strict environmental standards, which makes landfill disposal The investment and operating costs of the method tend to increase significantly, and many countries have begun to prohibit the landfill of sludge; drying and heat treatment require a large amount of energy, which is very uneconomical. Comprehensive resource utilization is the ultimate goal of sludge treatment and disposal.
无论哪种方式，污泥的深度脱水都是最关键的一环。我国目前对市政及工 业污泥的含水率由之前的80％已修改为60％以下，因此污泥深度脱水是目前 必须要解决的问题。Either way, deep dewatering of sludge is the most critical part. At present, the water content of municipal and industrial sludge in my country has been revised from 80% to below 60%. Therefore, deep dehydration of sludge is a problem that must be solved at present.
污泥中所含水份大致分为四类：间隙水、毛细结合水、表面吸附水、内部 水。第一种称为“自由水”，后三种称为“束缚水”。这四种水除了间隙水可以以 物理方式压滤以外，其它三种水表面具有强大的负电子包裹着，它不能以物理 压滤析出。颗粒间的间隙水，约占污泥水份的70％；毛细水，污泥颗粒间的毛 细管水，约占20％；颗粒的吸附水及颗粒内部水约占10％，污泥脱水的对象 是颗粒间的间隙水。The water contained in sludge can be roughly divided into four categories: interstitial water, capillary bound water, surface adsorption water, and internal water. The first is called "free water" and the latter three are called "bound water". In addition to the interstitial water of these four kinds of water, which can be filtered by physical means, the surface of the other three kinds of water is surrounded by strong negative electrons, which cannot be separated out by physical pressure filtration. Interstitial water between particles accounts for about 70% of sludge water; capillary water, capillary water between sludge particles accounts for about 20%; particle adsorption water and water inside particles account for about 10%, the object of sludge dehydration is interstitial water between particles.
污泥之所以含有大量的水份，除了间隙水外，另有很大一部分是由于其颗 粒表面特性和污泥团的结构所决定的。污泥颗粒表面吸附有各种荷电离子以及 由微生物在其代谢过程中分泌于细胞体外的胞外聚合物等组成。这些荷电离子 和胞外聚合物具有很强的持水率。这些污泥颗粒组成了污泥团，形成许许多多 的毛细孔道，污泥颗粒表面所持的水和毛细孔道中的水都为结合水，这种束缚 水是不能用单纯的机械法除掉。The reason why sludge contains a large amount of water is that, in addition to interstitial water, a large part is determined by the surface characteristics of its particles and the structure of sludge clusters. There are various charged ions adsorbed on the surface of sludge particles and extracellular polymers secreted by microorganisms outside the cells during their metabolism. These charged ions and exopolymers have a strong water holding capacity. These sludge particles form a sludge mass and form many capillary channels. The water held on the surface of the sludge particles and the water in the capillary channels are all bound water. This bound water cannot be removed by simple mechanical methods.
污泥脱水的难易，除与水份在污泥中的存在形式有关外，还与污泥颗粒的 大小，污泥比阻和有机物含量有关，污泥颗粒越细、有机物含量越高、污泥比 阻越大，其脱水的难度就越大。The difficulty of sludge dewatering is not only related to the form of water in the sludge, but also related to the size of the sludge particles, the specific resistance of the sludge and the content of organic matter. The finer the sludge particles, the higher the content of organic matter, the The greater the mud specific resistance, the greater the difficulty of its dehydration.
另外，由于污泥中含有大量的蛋白质、脂肪及其它碳水化合物等高浓度有 机物，导致污泥的粘度较大、含水率较高、固液分离性能差。In addition, because the sludge contains a large amount of high-concentration organic matter such as protein, fat, and other carbohydrates, the sludge has a high viscosity, a high water content, and poor solid-liquid separation performance.
发明内容Contents of the invention
为此，本发明实施例提供一种污泥生态处置深度处理工艺及系统，以解 决现有技术中污泥脱水难度大、处理成本高、污泥中有机物含量高，无法对处 理后污泥再次利用的问题。For this reason, the embodiment of the present invention provides an advanced treatment process and system for sludge ecological disposal to solve the problem of difficulty in sludge dehydration, high treatment cost, high content of organic matter in sludge and the inability to recycle sludge after treatment in the prior art. problem of utilization.
为了实现上述目的，本发明实施例提供如下技术方案：In order to achieve the above purpose, embodiments of the present invention provide the following technical solutions:
根据本发明实施例的第一方面，该污泥生态处置深度处理系统包括依次 连接的脱水预处理装置、干燥装置、无害化处理装置和烧结机，所述脱水预 处理装置包括污泥搅拌罐和超高压污泥脱水压滤机，污泥搅拌罐的上部开口 处连接有污泥输送机构，污泥搅拌罐的下部出口通过一根预处理输泥管连接 超高压污泥脱水压滤机，所述无害化处理装置为热磨机。According to the first aspect of the embodiment of the present invention, the sludge ecological disposal advanced treatment system includes a dehydration pretreatment device, a drying device, a harmless treatment device and a sintering machine connected in sequence, and the dehydration pretreatment device includes a sludge stirring tank And the ultra-high pressure sludge dewatering filter press, the upper opening of the sludge mixing tank is connected with a sludge conveying mechanism, and the lower outlet of the sludge mixing tank is connected to the ultra-high pressure sludge dewatering filter press through a pretreatment mud delivery pipe, The harmless treatment device is a thermal grinder.
进一步地，所述的污泥搅拌罐为并排设置的两个，所述污泥输送机构包括 一个输送料斗和两个输送绞龙，两个输送绞龙分别设置在输送料斗的两侧，两 个输送绞龙分别设置在两个污泥搅拌罐的上侧。Further, there are two sludge mixing tanks arranged side by side, and the sludge conveying mechanism includes a conveying hopper and two conveying augers, and the two conveying augers are respectively arranged on both sides of the conveying hopper, and two The conveying augers are respectively arranged on the upper side of the two sludge mixing tanks.
进一步地，所述的污泥搅拌罐上侧还设有生石灰料仓，生石灰料仓通过生 石灰管连接污泥搅拌罐。Further, the upper side of the sludge mixing tank is also provided with a quicklime silo, which is connected to the sludge mixing tank through a quicklime pipe.
进一步地，所述的超高压污泥脱水压滤机包括机架、板框、液压油缸和输 送带，多个板框滑动设置在机架上，液压油缸水平固定在机架的一端，输送带 设置在机架下侧；所述板框包括左板框、右板框、滤边框和滤布，滤边框设置 在左板框与右板框之间，滤布侧边与滤边框固定连接，在左板框与滤边框之间 设有压缩弹簧，左板框、右板框和滤布中部均设有污泥通孔，左板框与滤布的 污泥通孔之间连接有密封筒，右板框的左侧设有容纳滤布的滤室。Further, the ultra-high pressure sludge dewatering filter press includes a frame, a plate frame, a hydraulic cylinder and a conveyor belt. A plurality of plate frames are slidably arranged on the frame, and the hydraulic cylinder is horizontally fixed at one end of the frame. The conveyor belt It is arranged on the lower side of the frame; the plate frame includes a left plate frame, a right plate frame, a filter frame and a filter cloth, the filter frame is arranged between the left plate frame and the right plate frame, and the side of the filter cloth is fixedly connected with the filter frame, There is a compression spring between the left plate frame and the filter frame, the left plate frame, the right plate frame and the middle part of the filter cloth are all equipped with sludge through holes, and a sealing cylinder is connected between the left plate frame and the sludge through hole of the filter cloth , the left side of the right plate frame is provided with a filter chamber to accommodate the filter cloth.
进一步地，所述的输送带包括第一输送带和第二输送带，第一输送带沿板 框的滑动方向设置，第二输送带设置在第一输送带的一端下侧，第二输送带连 接第一输送带与干燥装置。Further, the conveyor belt includes a first conveyor belt and a second conveyor belt, the first conveyor belt is arranged along the sliding direction of the plate frame, the second conveyor belt is arranged on the lower side of one end of the first conveyor belt, and the second conveyor belt Connect the first conveyor belt with the drying device.
进一步地，所述的干燥装置为热风干燥装置。Further, the drying device is a hot air drying device.
进一步地，在所述的无害化处理装置与烧结机之间还设有造粒机。Further, a granulator is also provided between the harmless treatment device and the sintering machine.
根据本发明实施例的第二方面，所述的污泥生态处置深度处理系统的处理 工艺包括以下步骤：According to a second aspect of an embodiment of the present invention, the treatment process of the described sludge ecological disposal advanced treatment system comprises the following steps:
将污泥送入污泥搅拌罐中，并向污泥搅拌罐中添加破壁剂进行搅拌，污泥 搅拌罐内的污泥搅拌后通过预处理输泥管输送至超高压污泥脱水压滤机内，超 高压污泥脱水压滤机对污泥进行压滤，Send the sludge into the sludge mixing tank, and add a wall-breaking agent to the sludge mixing tank for stirring. After the sludge in the sludge mixing tank is stirred, it is transported to the ultra-high pressure sludge dehydration press filter through the pretreatment sludge delivery pipe Inside the machine, the ultra-high pressure sludge dewatering filter press filters the sludge,
经超高压污泥脱水压滤机压滤后的污泥送入干燥装置进一步除水，经过干 燥装置干燥后污泥的含水率降低45％以下；The sludge filtered by the ultra-high pressure sludge dehydration filter press is sent to the drying device for further water removal, and the moisture content of the sludge after drying by the drying device is reduced by less than 45%;
干燥后的污泥送入热磨机，并向热磨机内加入高温嗜热菌，对污泥中的有 机物进行分解，实现污泥的无害化处理；The dried sludge is sent to the heat refiner, and thermophilic bacteria are added into the heat refiner to decompose the organic matter in the sludge and realize the harmless treatment of the sludge;
经过无害化处理后的污泥送入烧结机烧结为可再利用材料。The sludge after harmless treatment is sent to the sintering machine to be sintered into reusable materials.
本发明实施例具有如下优点：Embodiments of the present invention have the following advantages:
本发明实施例采用脱水预处理装置、干燥装置、无害化处理装置和烧结 机依次对污泥进行预脱水、干燥、无害化处理后，通过预脱水和干燥后降低污 泥含水率，提高后续处理效率，降低后续处理负荷，利用热磨机对污泥进行无 害化处理，将污泥中的有机物质分解成CO2、H2O等无害物质，而其中所含无 机物亦可氧化还原成为安定的矿物成分，实现污泥的无害化，最后经过对污泥 进行烧结，制成多孔性陶粒或高强度陶板等产品，所得产品可以用作轻质骨 材、隔间材或隔音墙、人行道透水砖、管线工程回填材、沥青拌合材料、园 艺或环境绿化材料、污水处理过滤材料等。The embodiment of the present invention uses a dehydration pretreatment device, a drying device, a harmless treatment device and a sintering machine to carry out pre-dehydration, drying, and harmless treatment on the sludge in sequence, and after pre-dehydration and drying, the moisture content of the sludge is reduced and the sludge is improved. Subsequent treatment efficiency, reduce subsequent treatment load, use heat mill to treat sludge harmlessly, decompose organic matter in sludge into CO 2 , H 2 O and other harmless substances, and the inorganic substances contained in it can also be Oxidation and reduction become stable mineral components to realize the harmlessness of sludge. Finally, the sludge is sintered to make products such as porous ceramsite or high-strength ceramic plates. The obtained products can be used as lightweight aggregates and compartment materials. Or sound insulation wall, sidewalk permeable brick, pipeline engineering backfill material, asphalt mixing material, gardening or environmental greening material, sewage treatment filter material, etc.
附图说明Description of drawings
为了更清楚地说明本发明的实施方式或现有技术中的技术方案，下面将 对实施方式或现有技术描述中所需要使用的附图作简单地介绍。显而易见 地，下面描述中的附图仅仅是示例性的，对于本领域普通技术人员来讲，在 不付出创造性劳动的前提下，还可以根据提供的附图引申获得其它的实施附 图。In order to illustrate the embodiment of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiment or the prior art. Obviously, the accompanying drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative work.
本说明书所绘示的结构、比例、大小等，均仅用以配合说明书所揭示的 内容，以供熟悉此技术的人士了解与阅读，并非用以限定本发明可实施的限 定条件，故不具技术上的实质意义，任何结构的修饰、比例关系的改变或大 小的调整，在不影响本发明所能产生的功效及所能达成的目的下，均应仍落 在本发明所揭示的技术内容所能涵盖的范围内。The structures, proportions, sizes, etc. shown in this manual are only used to cooperate with the content disclosed in the manual, so that people familiar with this technology can understand and read, and are not used to limit the conditions for the implementation of the present invention, so there is no technical In the substantive meaning above, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the technical content disclosed in the present invention without affecting the effect and purpose of the present invention. within the range that can be covered.
图1为本发明实施例1提供的一种污泥生态处置深度处理工艺及系统的示 意图；Fig. 1 is the schematic diagram of a kind of sludge ecological disposal advanced treatment process and system that the embodiment of the present invention 1 provides;
图2为本发明实施例1脱水预处理装置的结构示意图；Fig. 2 is a schematic structural view of a dehydration pretreatment device in Example 1 of the present invention;
图3为本发明实施例1板框的结构示意图；Fig. 3 is the schematic structural view of the frame of Embodiment 1 of the present invention;
图中：1-脱水预处理装置 2-热风干燥装置 3-热磨机 4-造粒机 5-烧 结机 6-污泥搅拌罐 7-输送料斗 8-输送绞龙 9-生石灰料仓 10-氯化铁 料仓 11-预处理输泥管12-超高压污泥脱水压滤机 13-机架 14-板框 15-液压油缸 16-第一输送带 17-第二输送带 18-左板框 19-滤边框 20- 滤布 21-右板框 22-通孔 23-滤室 24-密封筒 25-压缩弹簧 26-滤板。In the figure: 1-dehydration pretreatment device 2-hot air drying device 3-heat mill 4-granulator 5-sintering machine 6-sludge mixing tank 7-conveying hopper 8-conveying auger 9-quicklime silo 10- Ferric chloride silo 11-pretreatment mud pipe 12-ultra-high pressure sludge dewatering filter press 13-frame 14-plate frame 15-hydraulic cylinder 16-first conveyor belt 17-second conveyor belt 18-left plate Frame 19-filter frame 20-filter cloth 21-right plate frame 22-through hole 23-filter chamber 24-seal cylinder 25-compression spring 26-filter plate.
具体实施方式Detailed ways
以下由特定的具体实施例说明本发明的实施方式，熟悉此技术的人士可 由本说明书所揭露的内容轻易地了解本发明的其他优点及功效，显然，所描 述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的 实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其 他实施例，都属于本发明保护的范围。本说明书中所引用的如“上”、 “下”、“左”、“右”、“中间”等的用语，亦仅为便于叙述的明了，而 非用以限定本发明可实施的范围，其相对关系的改变或调整，在无实质变更 技术内容下，当亦视为本发明可实施的范畴。The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. Terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. The change or adjustment of the relative relationship shall also be regarded as the implementable scope of the present invention without substantive change of the technical content.
参见图1，该污泥生态处置深度处理系统包括依次连接的脱水预处理装 置1、干燥装置、无害化处理装置和烧结机5，本实施例中的无害化处理装置 为热磨机3，干燥装置为热风干燥装置2，在无害化处理装置与烧结机5之间 还设有造粒机4。Referring to Fig. 1, the sludge ecological disposal advanced treatment system includes a dehydration pretreatment device 1, a drying device, a harmless treatment device and a sintering machine 5 connected in sequence, and the harmless treatment device in this embodiment is a heat mill 3 , The drying device is a hot air drying device 2, and a granulator 4 is also provided between the harmless treatment device and the sintering machine 5.
参见图2，脱水预处理装置1包括污泥搅拌罐6和超高压污泥脱水压滤机 12，污泥搅拌罐6的上部开口处连接有污泥输送机构，污泥搅拌罐6的下部出 口通过一根预处理输泥管11连接超高压污泥脱水压滤机12。污泥搅拌罐6为 并排设置的两个，污泥输送机构包括一个输送料斗7和两个输送绞龙8，两个 输送绞龙8分别设置在输送料斗7的两侧，两个输送绞龙8分别设置在两个污 泥搅拌罐6的上侧。污泥搅拌罐6上侧还设有生石灰料仓9，生石灰料仓9通 过生石灰管连接污泥搅拌罐6。污泥搅拌罐6的一侧还设有氯化铁料仓10，氯 化铁料仓10也通过管路连接污泥搅拌罐6。控制输送绞龙8使输送料斗7内 的污泥先落入其中一个污泥搅拌罐6，当到达指定位置时，停止进料并开启 另一个输送绞龙8输送污泥到另一个污泥搅拌罐6。配料装置启动，经自动计 量加入生石灰、氯化铁或其他药剂。配料系统可根据加料不同随时改变其配 比。搅拌10-20min，调理搅拌后的污泥经预处理输泥管11输送到超高压污泥 脱水压滤机12。当污泥搅拌罐6污泥输送完成后，开启输送绞龙8，污泥落入污泥搅拌罐6，同时一个污泥搅拌罐6内搅拌完成后，开始往压滤机腔室内泵 送。两个污泥搅拌罐6交替工作，提高效率。Referring to Fig. 2, the dehydration pretreatment device 1 includes a sludge mixing tank 6 and an ultra-high pressure sludge dewatering filter press 12, the upper opening of the sludge mixing tank 6 is connected with a sludge conveying mechanism, and the lower outlet of the sludge mixing tank 6 An ultra-high pressure sludge dewatering filter press 12 is connected through a pretreatment mud delivery pipe 11 . The sludge mixing tank 6 is two arranged side by side, and the sludge conveying mechanism includes a conveying hopper 7 and two conveying augers 8, and the two conveying augers 8 are respectively arranged on both sides of the conveying hopper 7, and the two conveying augers 8 are arranged on the upper side of the two sludge mixing tanks 6 respectively. The sludge mixing tank 6 upper side is also provided with a quicklime silo 9, and the quicklime silo 9 is connected to the sludge mixing tank 6 by a quicklime pipe. One side of the sludge mixing tank 6 is also provided with a ferric chloride silo 10, and the ferric chloride silo 10 is also connected to the sludge mixing tank 6 by a pipeline. Control the conveying auger 8 so that the sludge in the conveying hopper 7 falls into one of the sludge mixing tanks 6 first, and when it reaches the designated position, stop feeding and open another conveying auger 8 to convey the sludge to another sludge mixing tank tank6. The batching device is started, and quicklime, ferric chloride or other agents are added by automatic metering. The batching system can change its ratio at any time according to different feeding materials. Stir for 10-20min, and the sludge after conditioning and stirring is transported to the ultra-high pressure sludge dewatering filter press 12 through the pretreatment mud delivery pipe 11. After the mud mixing tank 6 has conveyed the sludge, the conveying auger 8 is opened, and the sludge falls into the sludge mixing tank 6. After the stirring in a sludge mixing tank 6 is completed, it starts to pump in the filter press chamber. Two sludge mixing tanks 6 work alternately to improve efficiency.
超高压污泥脱水压滤机12包括机架13、板框14、液压油缸15和输送带， 多个板框14滑动设置在机架13上，液压油缸15水平固定在机架13的一端， 输送带设置在机架13下侧；机架13是整套设备的基础，它主要用于支撑过滤 机构和拉板机构，采用优质Q345低碳合金钢板焊接而成，经人工除锈和高速 喷砂处理后，进行防腐处理，不易生锈且坚固可靠。主梁采用Q345优质型材 及中板焊接而成，保证不会发生侧弯及下垂现象。设备工作运行时,活塞杆推 动压紧板，将位于压紧板和止推板之间的滤板及过滤介质压紧，以保证带有一定压力的滤浆在滤室23内进行加压过滤。本实施例中的压滤机带反吹功 能。压滤完成后能将滤板中心的湿泥反吹回污泥池。进一步降低污泥的含水 率。The ultra-high pressure sludge dewatering filter press 12 includes a frame 13, a plate frame 14, a hydraulic cylinder 15 and a conveyor belt. A plurality of plate frames 14 are slidably arranged on the frame 13, and a hydraulic cylinder 15 is horizontally fixed on one end of the frame 13. The conveyor belt is set on the lower side of the frame 13; the frame 13 is the foundation of the whole set of equipment, it is mainly used to support the filter mechanism and the pull plate mechanism, it is welded by high-quality Q345 low-carbon alloy steel plate, and has been manually derusted and high-speed sandblasting After treatment, anti-corrosion treatment is carried out, which is not easy to rust and is strong and reliable. The main girder is welded with Q345 high-quality profile and middle plate to ensure that no side bending and sagging will occur. When the equipment is in operation, the piston rod pushes the compression plate to compress the filter plate and the filter medium between the compression plate and the thrust plate to ensure that the filter slurry with a certain pressure is filtered under pressure in the filter chamber 23 . The filter press in this embodiment has a backflushing function. After the filter press is completed, the wet mud in the center of the filter plate can be blown back to the sludge tank. Further reduce the moisture content of sludge.
参见图3，板框14包括左板框18、右板框21、滤边框19和滤布20，滤 边框19设置在左板框18与右板框21之间，在左板框18与滤边框19之间设 有压缩弹簧25，滤布20侧边与滤边框19固定连接，滤板26设置在两层滤布 20之间，左板框18、右板框21、滤板26和滤布20中部均设有污泥通孔22， 左板框18与滤布20的污泥通孔22之间连接有密封筒24，滤板26、滤布20 与密封筒24滑动连接，右板框21的左侧设有容纳滤布20的滤室23。输送带 包括第一输送带16和第二输送带17，第一输送带16沿板框14的滑动方向设 置，第二输送带17设置在第一输送带16的一端下侧，第二输送带17连接第 一输送带16与干燥装置。在第一输送带16上侧设有翻转设置的接水盘，在压 滤时接水盘承接滤出的水，在压滤完成后接水盘翻转让位，逐个拉动板框14， 使压滤后的污泥落到第一输送带16上，第一输送带16将污泥料经由第二输送 带17输送至下一工序。滤板26采用增强型聚丙烯经高温模压而成，单板过滤 面积大，压缩行程大，受力均匀。压缩弹簧25采用进口硅铬弹簧钢，经过防 腐处理，抗压性能优越，回弹性好，不变形，使用寿命长。Referring to Fig. 3, plate frame 14 comprises left plate frame 18, right plate frame 21, filter frame 19 and filter cloth 20, filter frame 19 is arranged between left plate frame 18 and right plate frame 21, between left plate frame 18 and filter A compression spring 25 is arranged between the frame 19, the side of the filter cloth 20 is fixedly connected with the filter frame 19, the filter plate 26 is arranged between two layers of filter cloth 20, the left plate frame 18, the right plate frame 21, the filter plate 26 and the filter plate The middle part of the cloth 20 is provided with a sludge through hole 22, and a sealing cylinder 24 is connected between the left plate frame 18 and the sludge through hole 22 of the filter cloth 20, the filter plate 26, the filter cloth 20 and the sealing cylinder 24 are slidably connected, and the right plate The left side of the frame 21 is provided with a filter chamber 23 for accommodating the filter cloth 20 . The conveyer belt comprises a first conveyer belt 16 and a second conveyer belt 17, the first conveyer belt 16 is arranged along the sliding direction of the plate frame 14, the second conveyer belt 17 is arranged on an end lower side of the first conveyer belt 16, and the second conveyer belt 17 connects the first conveyor belt 16 and the drying device. The upper side of the first conveyor belt 16 is provided with a water receiving tray that is turned over. During the press filtration, the water receiving tray accepts the filtered water. The filtered sludge falls on the first conveyor belt 16, and the first conveyor belt 16 transports the sludge material to the next process via the second conveyor belt 17. Filter plate 26 adopts reinforced polypropylene to form through high-temperature molding, and the single plate filter area is large, and the compression stroke is large, and the force is even. Compression spring 25 adopts imported silicon chromium spring steel, through anticorrosion treatment, superior compressive performance, good resilience, no deformation, long service life.
压滤机的主要工作过程如下：The main working process of the filter press is as follows:
1、合板，液压油缸15启动，加载压缩弹簧25移动10mm左右，消除间 隙，完成进行预压。1, plywood, hydraulic cylinder 15 starts, loads compression spring 25 and moves about 10mm, eliminates gap, completes and carries out preloading.
2、进料，预压完成后，进泥阀打开，将高压污泥灌入各个滤室23。当注 满泥浆后，给定信号，进泥阀关闭。在进料压力下完成一次压滤。2. Feeding, after the pre-pressing is completed, the mud inlet valve is opened, and the high-pressure sludge is poured into each filter chamber 23 . When the mud is filled, a signal is given and the mud inlet valve is closed. A filter press is performed under feed pressure.
3、弹性压榨，进料完成后，液压油缸15继续加载压缩弹簧25移动到指 定位置，系统保压，进行二次压滤。滤饼达到预定的含水率时，液压油缸15 卸荷，到指定压力2Mpa。3. Elastic pressing, after the feeding is completed, the hydraulic cylinder 15 continues to load the compression spring 25 and moves to the designated position, the system maintains pressure, and performs secondary pressure filtration. When the filter cake reaches a predetermined water content, the hydraulic cylinder 15 is unloaded to a specified pressure of 2Mpa.
4、接水盘翻转，压榨完成后，滤液排出后，接水盘动作，为卸料让出空 间。4. Turn over the water tray. After the pressing is completed and the filtrate is discharged, the water tray moves to make room for unloading.
5、拉板卸料，二次压榨完成后，液压油缸15返程到指定位置，自动拉板 机构逐个拉开板框14。通过抖动系统滤饼脱落，由第一输送带16运走。并开 始下一循环5. Pull plate unloading. After the secondary pressing is completed, the hydraulic cylinder 15 returns to the designated position, and the automatic plate pulling mechanism pulls the plate frames 14 one by one. The filter cake falls off through the shaking system and is carried away by the first conveyor belt 16. and start the next cycle
超高压污泥脱水压滤机12是一种高效率压滤设备，特别适合本项目污泥 的压滤脱水处理，超高压深度脱水机改进了传统板框14结构，使用寿命长， 密封效果好，无泄漏及喷浆，进料压力大，一次压榨压力高，二次压榨液压油 缸15直接作用于滤板进行压榨。压榨压力最大可达3Mpa，压缩行程大(可达 25mm)，压缩比大，压榨无死角，受力均匀。工作效率高，压滤后含水率仅 为50-60％。本设备单批次工作时间仅为1.5-2小时，工作效率为隔膜压滤机 4-5倍。本设备附属设备少，而隔膜压滤机必须配套水箱、空压机、二次压榨 高压泵、气罐等设备。本设备板框14采用优质钢材加防腐处理，使用寿命 长。滤布20面积远小于隔膜压滤机，使用成本低，操作简单，适用性强。The ultra-high pressure sludge dewatering filter press 12 is a high-efficiency filter press equipment, which is especially suitable for the filter press dehydration treatment of sludge in this project. The ultra-high pressure deep dewatering machine has improved the structure of the traditional plate frame 14, and has a long service life and good sealing effect , No leakage and spraying, high feed pressure, high pressure for primary pressing, and hydraulic cylinder 15 for secondary pressing acts directly on the filter plate for pressing. The maximum pressing pressure can reach 3Mpa, the compression stroke is large (up to 25mm), the compression ratio is large, there is no dead angle in pressing, and the force is even. The working efficiency is high, and the water content after pressing is only 50-60%. The single batch working time of this equipment is only 1.5-2 hours, and the working efficiency is 4-5 times that of the diaphragm filter press. There are few auxiliary equipment for this equipment, but the membrane filter press must be equipped with water tank, air compressor, secondary pressing high-pressure pump, air tank and other equipment. The plate frame 14 of this equipment adopts high-quality steel to add anti-corrosion treatment, and the service life is long. The area of the filter cloth 20 is much smaller than that of the membrane filter press, and the use cost is low, the operation is simple, and the applicability is strong.
污泥生态处置深度处理系统的处理工艺包括以下步骤：The treatment process of the sludge ecological disposal advanced treatment system includes the following steps:
将污泥送入污泥搅拌罐6中，并向污泥搅拌罐6中添加破壁剂进行搅拌， 污泥搅拌罐6内的污泥搅拌后通过预处理输泥管11输送至超高压污泥脱水压 滤机12内，超高压污泥脱水压滤机12对污泥进行压滤。Send the sludge into the sludge mixing tank 6, and add a wall-breaking agent to the sludge mixing tank 6 for stirring. After the sludge in the sludge mixing tank 6 is stirred, it is transported to the ultra-high pressure sewage through the pretreatment sludge delivery pipe 11. In the mud dewatering filter press 12, the ultra-high pressure sludge dewatering filter press 12 press-filters the sludge.
经超高压污泥脱水压滤机12压滤后的污泥送入干燥装置进一步除水，经 过干燥装置干燥后污泥的含水率降低45％以下；一般而言，天然干燥物的含水 率约为14％左右，而无机污泥的含水率约为60％、有机污泥则高达80％以 上，因此该类污染物质在进入后续处理程序之前，必须加以适当的前处理-干 燥程序，而其处理方式及其目的说明如下：The sludge filtered by the ultra-high pressure sludge dewatering filter press 12 is sent to the drying device for further dehydration, and the moisture content of the sludge after being dried by the drying device is reduced by less than 45%; generally speaking, the moisture content of natural dry matter is about The water content of inorganic sludge is about 60%, and the moisture content of organic sludge is as high as 80%. Therefore, before entering the subsequent treatment procedures, this kind of pollutants must be subjected to appropriate pre-treatment-drying procedures, and other The manner of processing and its purpose are described below:
1、干燥：将废弃物经由“热风干燥机”将其含水率干燥至45％以下。1. Drying: Dry the waste to a moisture content below 45% through a "hot air dryer".
2、减量：废弃物经干燥后，约可脱去约15％以上水分，亦即能将废弃物 减量15％以上。2. Weight reduction: After the waste is dried, more than 15% of water can be removed, that is, the waste can be reduced by more than 15%.
3、提升处理效率：废弃物剑来那个后，可缩小后续处理设备的容量，降 低初设成本，同事可减缓后续处理单元的负荷。3. Improve processing efficiency: After the waste is collected, the capacity of subsequent processing equipment can be reduced, the initial cost can be reduced, and the load of subsequent processing units can be reduced.
干燥后的污泥送入热磨机3，并向热磨机3内加入高温嗜热菌，对污泥中 的有机物进行分解，实现污泥的无害化处理；本工序的目的是在将废弃物所含 有机或无机有害物质予以安定化或无害化，故当废弃物未含有害物质时，即 无需经过此处理程序。而当废弃物含有害物质时，即需经本程序内的“热磨反 映系统”，藉由低温电浆反应(200℃)，将废弃物中的有机物质分解成CO2、 H2O等无害物质，而其中所含无机物亦可氧化还原成为安定的矿物成分。高温 嗜热菌可有效打开污泥中的有机分子链，使污泥中的水分迅速挥发，污泥的含水率可降低到35％以下，相较于传统好氧发酵技术。可使发酵温度低、发 酵周期长、病原体和虫卵不能彻底杀灭的问题得到妥善解决，能实现污泥的 无害化和稳定化处理。此外，这一技术处理对象广泛，只要是有机物即可进行 有效分解，可以广泛应用于生活垃圾、餐厅垃圾、畜禽粪便、动物尸体、枯 枝落叶等有机固废的无害化处理，有机物的分解率达95％以上。无害化处理后 的熟料可以做以下用途1、制复合肥料，经过生物干化后的物料，仍保持着 较多的有机质和N、P、K等营养成分，在重金属等有害物质达到相关标准要 求的前提下，可以与化肥经过混造粒，职称各种用途的有机无机复混肥料， 应用于农业或者花卉养植、草坪养护等专业领域。2、制建材，经过生物干化 后的物料，熟料含水率降到30％左右，通过与粉煤灰、粘合剂等混合压制成 型，作为混凝土砌块。便道砖的替代品，可以广泛应用于建筑领域。3、辅助 燃料，经过生物干化后的物料，仍保持着较多的有机质，虽然与生料相比较有 机质含量和热值均有所降低，但由于含水率大幅降低，因此可以作为辅助燃 料与高热值垃圾混合焚烧。The dried sludge is sent to the heat mill 3, and high-temperature thermophilic bacteria are added into the heat mill 3 to decompose the organic matter in the sludge and realize the harmless treatment of the sludge; the purpose of this process is to The organic or inorganic harmful substances contained in the waste are stabilized or made harmless, so when the waste does not contain harmful substances, it does not need to go through this treatment procedure. And when the waste contains harmful substances, it needs to go through the "heat grinding reaction system" in this program to decompose the organic substances in the waste into CO 2 , H 2 O, etc. by low-temperature plasma reaction (200°C) It is a harmless substance, and the inorganic substances contained in it can also be oxidized and reduced to become stable mineral components. Thermophilic bacteria can effectively open the organic molecular chains in the sludge, so that the water in the sludge can be quickly volatilized, and the moisture content of the sludge can be reduced to below 35%, compared with traditional aerobic fermentation technology. The problems of low fermentation temperature, long fermentation period, and inability to completely kill pathogens and insect eggs can be properly solved, and the harmless and stable treatment of sludge can be realized. In addition, this technology treats a wide range of objects, as long as it is organic matter, it can be effectively decomposed, and can be widely used in the harmless treatment of organic solid waste such as domestic garbage, restaurant waste, livestock and poultry manure, animal carcasses, litter, and organic matter. The decomposition rate is over 95%. The clinker after harmless treatment can be used for the following purposes: 1. To make compound fertilizers. After biological drying, the materials still maintain more organic matter and nutrients such as N, P, and K, and the harmful substances such as heavy metals reach the relevant level. Under the premise of standard requirements, it can be mixed and granulated with chemical fertilizers. It is an organic-inorganic compound fertilizer for various purposes. It can be used in professional fields such as agriculture, flower cultivation, and lawn maintenance. 2. For building materials, after biological drying, the moisture content of clinker is reduced to about 30%, and it is mixed with fly ash and adhesives to form concrete blocks. A substitute for sidewalk bricks, it can be widely used in the construction field. 3. Auxiliary fuel. The material after biological drying still maintains more organic matter. Although compared with raw meal, the organic matter content and calorific value are reduced, but because the moisture content is greatly reduced, it can be used as auxiliary fuel and High calorific value waste mixed incineration.
最佳的污泥处置方式是将它有效的回收再利用，进而达成零掩埋无二次 公害的目标，将原本的垃圾变成有用的黄金，原本要掩埋的废弃物转眼间变 成了有经济价值的黄金。它可以达成一：原本掩埋可能要占用的土地、资 源，做其他开发和利用；二：原本的废弃物转为有经济价值的建筑原材料； 三：原本要开发制造的建筑原材料，被取而代之。这样的处置方式对于经济 与利用来说可达到三赢的效益。The best way to dispose of sludge is to effectively recycle and reuse it, so as to achieve the goal of zero landfill and no secondary pollution, turning the original garbage into useful gold, and the waste that was originally buried becomes economical in a blink of an eye. worth of gold. It can achieve one: bury the land and resources that may be occupied for other development and utilization; two: turn the original waste into building materials with economic value; three: replace the building materials that were originally developed and manufactured. Such a disposal method can achieve win-win benefits for economy and utilization.
本实施例中经过无害化处理后的污泥送入烧结机5烧结为可再利用材料。 结合“低温机械化学处理技术”以及“高温烧结技术”而成，对于各类可由完整 的处理程序将其予以无害化、安定化与资源化，达成资源循环的最终目标。烧 结程序的目的是在于将废弃物加以资源化，而其处理方式是将经前处理或无 害化处理后的废弃物，掺与适量的黏土后，经“造粒机4”、“预热干燥机”等设 备处理后，送入“高温焙烧机”制成多孔性陶粒或高强度陶板等产品，所得产品 可以用作轻质骨材、隔间材或隔音墙、人行道透水砖、管线工程回填材、沥 青拌合材料、园艺或环境绿化材料、污水处理过滤材料等。In this embodiment, the sludge after harmless treatment is sent to the sintering machine 5 to be sintered into reusable materials. Combining "low-temperature mechanochemical treatment technology" and "high-temperature sintering technology", all kinds of materials can be harmless, stabilized and recycled through a complete treatment process to achieve the ultimate goal of resource recycling. The purpose of the sintering process is to turn the waste into resources, and its treatment method is to mix the waste after pretreatment or harmless treatment with an appropriate amount of clay, and then pass through "granulator 4", "preheating After being processed by equipment such as "dryer", it is sent to "high-temperature roasting machine" to make products such as porous ceramsite or high-strength ceramic panels, and the obtained products can be used as lightweight aggregates, partition materials or sound insulation walls, sidewalk permeable bricks, pipelines Engineering backfill materials, asphalt mixing materials, gardening or environmental greening materials, sewage treatment filter materials, etc.
污泥处理现场环境较为恶劣，需要提高现场自动化程度，并尽量减少人 员。不仅提高系统的可靠性，而且减少了人员开支。系统中所有泵、阀门、配 料系统、压滤系统均可通过上位机控制。The environment of the sludge treatment site is relatively harsh, and it is necessary to improve the degree of automation and reduce the number of personnel as much as possible. Not only improve the reliability of the system, but also reduce personnel expenses. All pumps, valves, batching systems, and filter press systems in the system can be controlled by the host computer.
本发明实施例采用脱水预处理装置1、干燥装置、无害化处理装置和烧 结机5依次对污泥进行预脱水、干燥、无害化处理后，通过预脱水和干燥后降 低污泥含水率，提高后续处理效率，降低后续处理负荷，利用热磨机3对污泥 进行无害化处理，将污泥中的有机物质分解成CO2、H2O等无害物质，而其中 所含无机物亦可氧化还原成为安定的矿物成分，实现污泥的无害化，最后经过 对污泥进行烧结，制成多孔性陶粒或高强度陶板等产品，所得产品可以用作轻 质骨材、隔间材或隔音墙、人行道透水砖、管线工程回填材、沥青拌合材 料、园艺或环境绿化材料、污水处理过滤材料等。The embodiment of the present invention adopts the dehydration pretreatment device 1, the drying device, the harmless treatment device and the sintering machine 5 to carry out pre-dehydration, drying and harmless treatment on the sludge in sequence, and then reduce the moisture content of the sludge through pre-dehydration and drying , improve the efficiency of follow-up treatment, reduce the load of follow-up treatment, use the heat mill 3 to carry out harmless treatment of sludge, and decompose the organic matter in the sludge into CO 2 , H 2 O and other harmless substances, while the inorganic substances contained in it It can also be oxidized and reduced into stable mineral components to realize the harmlessness of sludge. Finally, the sludge is sintered to make products such as porous ceramsite or high-strength ceramsite. The obtained products can be used as lightweight aggregates, Partition materials or sound insulation walls, sidewalk permeable bricks, pipeline engineering backfill materials, asphalt mixing materials, gardening or environmental greening materials, sewage treatment filter materials, etc.
在污泥搅拌罐6中添加破壁剂可以提高污泥的透气性，降低了污泥干化过 程中的塑化结壳现象(也就是生活中所说的糖心现象)，大大降低了污泥的干 燥时间，添加破壁剂后改性了污泥，同促进胞内水释放及污泥微颗粒集聚，彻 底改变污泥高持水性的性质，促进泥水分离并提高强度。Adding a wall-breaking agent in the sludge mixing tank 6 can improve the air permeability of the sludge, reduce the plasticizing crusting phenomenon in the sludge drying process (that is, the so-called sugar core phenomenon in life), and greatly reduce the pollution. The drying time of the sludge is modified by adding a wall-breaking agent, which also promotes the release of intracellular water and the accumulation of sludge particles, completely changes the high water-holding properties of the sludge, promotes the separation of sludge and water, and improves the strength.
超高压污泥脱水压滤机12的特点是生产能力大，脱水效果好，泥饼含水 率低，生产效率高，自动化程度高。本机的液压站采用两电机拖动，运行安 全可靠，操作维修方便，同时各道动作程序也均由操作电柜集中控制，可使 整个脱水过程在全自动控制和远距离操作中进行。超高压污泥脱水压滤机12 最大的创新及优势在于采用弹性板框14结构，使得滤室23在充满污泥后，液 压增压可以继续压缩从而为滤室23的进一步压缩提供空间，将液压传递到污 泥上，促使污泥快速脱水。与隔膜板框14压滤机相比，依靠弹性介质和液压 油缸15收缩来压迫滤室23中的污泥，从而降低了能耗，提高了生产效率。The ultra-high pressure sludge dewatering filter press 12 is characterized by large production capacity, good dehydration effect, low moisture content of mud cake, high production efficiency and high degree of automation. The hydraulic station of this machine is driven by two motors, which is safe and reliable in operation and convenient in operation and maintenance. At the same time, each action program is also centrally controlled by the operation electric cabinet, so that the whole dehydration process can be carried out under automatic control and remote operation. The biggest innovation and advantage of the ultra-high pressure sludge dewatering filter press 12 is the use of the elastic plate frame 14 structure, so that after the filter chamber 23 is filled with sludge, the hydraulic pressurization can continue to compress to provide space for further compression of the filter chamber 23. The hydraulic pressure is transmitted to the sludge to promote the rapid dehydration of the sludge. Compared with the diaphragm plate frame 14 filter press, the sludge in the filter chamber 23 is compressed by elastic medium and hydraulic cylinder 15 contraction, thereby reducing energy consumption and improving production efficiency.
该污泥生态处置深度处理工艺及系统具有以下优点：The sludge ecological disposal advanced treatment process and system have the following advantages:
1.符合污泥减量化、稳定化、无害化和资源化原则。1. Comply with the principles of sludge reduction, stabilization, harmlessness and recycling.
2.工艺简单，占地少、投资省，对周边条件的依赖性低；技术成熟、运 行可靠，整个系统自动化程度高，可实现自动控制。2. The process is simple, occupies less land, saves investment, and has low dependence on surrounding conditions; the technology is mature, the operation is reliable, and the entire system has a high degree of automation, which can realize automatic control.
3.适用污泥范围广。可将污水处理厂初步脱水后的污泥含水率 90-80％，降至含水率60％以下。3. It is suitable for a wide range of sludge. It can reduce the moisture content of the sludge after preliminary dehydration in the sewage treatment plant from 90-80% to below 60%.
4.污泥干化效果好。脱水后污泥具有疏水性，遇水不再还原，并在自然 状态下继续蒸发水分，脱水后污泥稳定性强。4. The sludge drying effect is good. After dehydration, the sludge is hydrophobic and will not be reduced when it meets water, and will continue to evaporate water in a natural state. The sludge after dehydration has strong stability.
5.处理成本低。通过超高压污泥深度脱水解决方案，可节省设备投资、 运输费用和再处理成本。5. Low processing cost. Through the ultra-high pressure sludge deep dewatering solution, equipment investment, transportation costs and reprocessing costs can be saved.
6.采用污泥破壁技术减容量大，对污泥的pH改变较小。不对污泥造成 二次污染，并能改进污泥的性能，促进污泥的稳定化，同时可以抑制臭气的 产生。6. The use of sludge breaking technology has a large capacity reduction and a small change in the pH of the sludge. It does not cause secondary pollution to the sludge, and can improve the performance of the sludge, promote the stabilization of the sludge, and at the same time inhibit the generation of odor.
虽然，上文中已经用一般性说明及具体实施例对本发明作了详尽的描述， 但在本发明基础上，可以对之作一些修改或改进，这对本领域技术人员而言是 显而易见的。因此，在不偏离本发明精神的基础上所做的这些修改或改进，均 属于本发明要求保护的范围。Although the present invention has been described in detail with general description and specific examples above, it will be obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.
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