CN108500058A - A kind of sealing thermal insulation formula revolution bioreactor - Google Patents
A kind of sealing thermal insulation formula revolution bioreactor Download PDFInfo
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- CN108500058A CN108500058A CN201810320139.2A CN201810320139A CN108500058A CN 108500058 A CN108500058 A CN 108500058A CN 201810320139 A CN201810320139 A CN 201810320139A CN 108500058 A CN108500058 A CN 108500058A
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- 238000009413 insulation Methods 0.000 title claims description 58
- 238000007789 sealing Methods 0.000 title claims description 8
- 239000002689 soil Substances 0.000 claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 238000002347 injection Methods 0.000 claims abstract description 30
- 239000007924 injection Substances 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000000746 purification Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011229 interlayer Substances 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 31
- 238000004321 preservation Methods 0.000 claims description 16
- 238000009423 ventilation Methods 0.000 claims description 16
- 239000010410 layer Substances 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 33
- 238000005067 remediation Methods 0.000 abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000000813 microbial effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000011534 incubation Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011798 excavation material Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000006241 metabolic reaction Methods 0.000 description 1
- 230000007269 microbial metabolism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
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- Environmental & Geological Engineering (AREA)
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Abstract
本发明涉及污染土壤生物修复设备，具体地说是一种用于污染土壤生物修复的密封保温式回转生物反应器，动反应器内筒体、保温外皮层及液体补给管同步转动，组成反应器的核心回转部分；动反应器内筒的内部设有螺旋导土料板与导土料板，二者相互交叉垂直；核心转动部分依靠动力传动装置进行顺时针方向或逆时针方向转动，动反应器内筒的内部通过液体补给管及强制注气通道进行液体补给及氧分压和温度调控，从而实现污染土壤微生物修复的中温好氧均质搅拌式孵育过程；筒体内气体可经由排气净化罐净化处理后排出。本发明有效实现了固体土壤的流体式处理模式，节省水资源的同时也避免了二次污染物的产生，是一种高效环保的污染土壤修复设备。
The invention relates to contaminated soil bioremediation equipment, in particular to a sealed and heat-preserving rotary bioreactor for bioremediation of polluted soil. The inner cylinder body of the dynamic reactor, the heat-preserving outer skin layer and the liquid supply pipe rotate synchronously to form a reactor. The core rotating part of the dynamic reactor inner cylinder is equipped with a spiral soil guide plate and a soil guide plate, which are intersected and perpendicular to each other; the core rotating part relies on the power transmission device to rotate clockwise or counterclockwise, and the dynamic response Liquid supply, oxygen partial pressure and temperature control are carried out inside the inner cylinder through the liquid supply pipe and forced gas injection channel, so as to realize the medium-temperature aerobic homogeneous stirring incubation process for microbial remediation of contaminated soil; the gas in the cylinder can be purified through exhaust Discharge after tank purification. The invention effectively realizes the fluid treatment mode of solid soil, saves water resources and avoids the generation of secondary pollutants, and is an efficient and environment-friendly contaminated soil restoration equipment.
Description
技术领域technical field
本发明涉及污染土壤生物修复设备，具体地说是一种用于污染土壤生物修复的密封保温式回转生物反应器。The invention relates to contaminated soil bioremediation equipment, in particular to a sealed and heat-preserving rotary bioreactor for contaminated soil bioremediation.
背景技术Background technique
污染土壤的生物修复技术是被广泛接受的、具有经济实用性的土壤治理技术，因其低成本、污染干扰小、操作便捷等优势而得到环保工作者的青睐。然而，微生物修复技术的耗时低效缺陷，始终制约着其在工程应用中的更深入发展。对此，主要原因在于环境条件因素对微生物生长代谢活性的制约。土壤温度、湿度、氧分压等环境因素，限制了微生物的数量、组成及生物酶活性。为了提高微生物修复污染土壤的修复效率，环保工作者采用人工调节等措施，增强土壤孔隙度，增加土壤养分含量，保持土壤湿度等环境条件。但繁重的人工调节工作不仅增加了人工修复成本，同时极易破坏土壤环境的稳定性，造成修复效率的参差不齐。对此，开发生物反应器等污染土壤修复设备，成为一个重要的研发方向之一。目前，泥浆生物反应器是研究和应用较多的土壤修复设备，因其具有较高的传质效率，提高污染物的生物可接触性及生物可利用性，故而修复效果得到强化。但高的含水量需求将产生污染废水等二次污染物，具有扩大污染范围的风险，是限制泥浆生物反应器应用的最大因素之一。The bioremediation technology of contaminated soil is a widely accepted and economical and practical soil treatment technology. It is favored by environmental protection workers because of its low cost, small pollution interference, and convenient operation. However, the time-consuming and inefficient defects of microbial remediation technology have always restricted its further development in engineering applications. The main reason for this is the restriction of environmental factors on the growth and metabolic activity of microorganisms. Environmental factors such as soil temperature, humidity, and oxygen partial pressure limit the number, composition, and enzyme activity of microorganisms. In order to improve the remediation efficiency of microbial remediation of contaminated soil, environmental protection workers adopt measures such as manual adjustment to enhance soil porosity, increase soil nutrient content, and maintain soil moisture and other environmental conditions. However, the heavy manual adjustment work not only increases the cost of manual restoration, but also easily destroys the stability of the soil environment, resulting in uneven restoration efficiency. In this regard, the development of contaminated soil remediation equipment such as bioreactors has become one of the important research and development directions. At present, the mud bioreactor is a soil remediation equipment that has been studied and applied more. Because of its high mass transfer efficiency, it can improve the bioaccessibility and bioavailability of pollutants, so the remediation effect is enhanced. However, high water content requirements will produce secondary pollutants such as polluted wastewater, which has the risk of expanding the scope of pollution, and is one of the biggest factors limiting the application of mud bioreactors.
卧式回转反应器在有色冶金、耐火材料、水泥及造纸化工等工业生产中得到广泛的应用，具有百余年的历史。卧式回转反应器也称为回转窑，一般在工业上作为导料装置而得到应用。回转反应器具有可传导物料、混合均匀等特点，因此具有应用于污染土壤修复并作为污染土壤生物反应器的潜能。对此，通过加工设计，以卧式回转反应器为基础，可期望实现集控温、曝气、搅混、补液、营养调控及自动出料于一体的原状污染土壤修复的回转生物反应器设备。Horizontal rotary reactors have been widely used in non-ferrous metallurgy, refractory materials, cement, papermaking and chemical industries, and have a history of more than 100 years. The horizontal rotary reactor is also called the rotary kiln, and it is generally used as a material guide device in industry. The rotary reactor has the characteristics of conductive materials and uniform mixing, so it has the potential to be applied to contaminated soil remediation and as a contaminated soil bioreactor. In this regard, through processing and design, based on the horizontal rotary reactor, it is expected to realize the rotary bioreactor equipment integrating temperature control, aeration, mixing, liquid replenishment, nutrient regulation and automatic discharge for the remediation of undisturbed contaminated soil.
发明内容Contents of the invention
为了满足污染土壤修复的要求，本发明的目的在于提供一种密封保温式回转生物反应器。In order to meet the requirements of contaminated soil remediation, the object of the present invention is to provide a sealed and heat-preserving rotary bioreactor.
本发明的目的是通过以下技术方案来实现的：The purpose of the present invention is achieved through the following technical solutions:
本发明包括窑头罩、液体补给管、动保温隔层、定保温隔层、动反应器内筒、动力传动装置、窑尾罩、窑头定反应器内筒及窑尾定反应器内筒，其中窑头定反应器内筒及窑尾定反应器内筒分别安装于窑头罩、窑尾罩内，所述动反应器内筒外设有保温外层皮，该保温外层皮与动反应器内筒外表面的内筒外皮之间形成动保温隔层，该保温外层皮上沿轴向安装有所述液体补给管，所述动反应器内筒的两端分别与窑头定反应器内筒及窑尾定反应器内筒密封转动连接，该动反应器内筒通过所述动力传动装置驱动带动液体补给管旋转；所述动反应器内筒内壁沿轴向设有螺旋导土料板及散土料板，所述液体补给管内沿轴向均布有多个向动反应器内筒内补液的液体喷嘴；所述窑头定反应器内筒及窑尾定反应器内筒内分别设有与动保温隔层相连通的定保温隔层；所述窑头罩内设有进土料通道，该进土料通道的一端与所述动反应器内筒的内部相连通，另一端通过内筒排气通道与设置在窑头罩上的主排气阀门相连通，第三端连通有设置在所述窑头罩上的进土料口阀门；所述窑尾罩上安装有出土料口阀门，该出土料口阀门通过通道与设置在所述动反应器内筒上的动内筒出料口相连通，所述窑尾罩内分别设有向动保温隔层和定保温隔层内供气的保温隔层注气通道和向动反应器内筒内部供气的强制注气通道；The invention includes a kiln head cover, a liquid supply pipe, a dynamic insulation layer, a fixed insulation layer, a dynamic reactor inner cylinder, a power transmission device, a kiln tail cover, a kiln head fixed reactor inner cylinder and a kiln tail fixed reactor inner cylinder , wherein the kiln head fixed reactor inner cylinder and the kiln tail fixed reactor inner cylinder are respectively installed in the kiln head cover and the kiln tail cover, and the inner cylinder of the dynamic reactor is provided with an outer skin for heat preservation, and the outer skin for heat preservation is in contact with the A dynamic insulation layer is formed between the outer skin of the inner cylinder on the outer surface of the inner cylinder of the dynamic reactor. The liquid supply pipe is installed axially on the outer skin of the thermal insulation layer. The two ends of the inner cylinder of the dynamic reactor are connected to the kiln head respectively. The inner cylinder of the fixed reactor and the inner cylinder of the fixed reactor at the end of the kiln are sealed and rotated, and the inner cylinder of the dynamic reactor is driven by the power transmission device to drive the liquid supply pipe to rotate; the inner wall of the inner cylinder of the dynamic reactor is provided with a spiral The soil guide plate and the loose soil material plate, the liquid supply pipe is evenly distributed in the axial direction with a plurality of liquid nozzles for replenishing liquid in the inner cylinder of the dynamic reactor; the inner cylinder of the fixed reactor at the kiln head and the fixed reactor at the kiln end The inner cylinder is respectively provided with a fixed insulation interlayer connected with the dynamic insulation interlayer; the kiln hood is provided with a soil inlet channel, and one end of the soil inlet channel is connected with the interior of the dynamic reactor inner cylinder The other end communicates with the main exhaust valve arranged on the kiln head cover through the exhaust channel of the inner cylinder, and the third end communicates with the soil inlet valve arranged on the kiln head cover; the kiln tail cover An excavation material port valve is installed on the top, and the excavation material port valve is connected with the discharge port of the dynamic inner cylinder arranged on the inner cylinder of the dynamic reactor through a channel, and the kiln tail cover is respectively provided with a dynamic insulation interlayer And the insulation interlayer gas injection channel for air supply in the fixed insulation interlayer and the forced air injection channel for supplying air to the inner cylinder of the dynamic reactor;
其中：所述窑尾罩上开设有注气口、内部安装有通风温度控制室，所述保温隔层注气通道及强制注气通道的一端分别与动保温隔层、动反应器内筒内部相连通，另一端均由所述通风温度控制室穿过、并与所述注气口相连通，在所述保温隔层注气通道及强制注气通道外表面与通风温度控制室内壁之间为温度控制室热传导层；Among them: the kiln tail cover is provided with a gas injection port, and a ventilation temperature control room is installed inside, and one end of the thermal insulation interlayer gas injection channel and the forced gas injection channel are respectively connected with the dynamic thermal insulation interlayer and the inner cylinder of the dynamic reactor The other end passes through the ventilation temperature control room and communicates with the gas injection port. The temperature is between the outer surface of the thermal insulation interlayer gas injection channel and the forced gas injection channel and the inner wall of the ventilation temperature control room. Control room heat transfer layer;
所述散土料板为多列，每列中的各散土料板均与所在列上的所述螺旋导土料板垂直连接；The loose soil material plates are in multiple rows, and each loose soil material plate in each row is vertically connected with the spiral soil guide material plates on the row;
所述螺旋导土料板的螺旋圈数大于或等于两圈，该螺旋导土料板与散土料板沿径向深入动反应器内筒内部的高度均小于或等于所述动反应器内筒直径的四分之一；The number of spiral turns of the spiral soil guide plate is greater than or equal to two turns, and the heights of the spiral soil guide plate and the scattered soil plate in the radial direction deep into the inner cylinder of the dynamic reactor are both less than or equal to the inner cylinder of the dynamic reactor. one quarter of the barrel diameter;
每个所述液体喷嘴的出水端部均设有喷嘴挡盖，该喷嘴挡盖轴向截面的一端与所述液体喷嘴铰接，另一端为自由端，每个所述液体喷嘴内的下部均设有横梁，所述喷嘴挡盖通过弹簧与该横梁相连；所述喷嘴挡盖的自由端在补液时被经过的液体冲开，并在补液后通过所述弹簧的弹力复位，与所述液体喷嘴密封抵接；所述喷嘴挡盖的外边缘位于液体喷嘴出水端部外边缘的外侧；The outlet end of each of the liquid nozzles is provided with a nozzle cover, one end of the axial section of the nozzle cover is hinged with the liquid nozzle, the other end is a free end, and the lower part of each of the liquid nozzles is provided with a There is a beam, and the nozzle cover is connected to the beam through a spring; the free end of the nozzle cover is washed away by the passing liquid during liquid replenishment, and is reset by the elastic force of the spring after liquid replenishment, and is connected with the liquid nozzle sealing abutment; the outer edge of the nozzle cover is located outside the outer edge of the outlet end of the liquid nozzle;
所述窑头定反应器内筒内的定保温隔层上或窑尾定反应器内筒内的定保温隔层上安装有保温隔层压力调节阀；An insulation interlayer pressure regulating valve is installed on the fixed insulation interlayer in the inner cylinder of the fixed reactor at the kiln head or on the fixed insulation interlayer in the inner cylinder of the fixed reactor at the kiln end;
所述窑头罩内设有排气净化罐，所述内筒排气通道的一端与进土料通道的另一端相连，该内筒排气通道的另一端与所述排气净化罐的入口相连通，该排气净化罐的出口与所述主排气阀门相连通；The kiln head cover is provided with an exhaust purification tank, one end of the inner cylinder exhaust channel is connected to the other end of the soil feed channel, and the other end of the inner cylinder exhaust channel is connected to the inlet of the exhaust purification tank. connected, the outlet of the exhaust purification tank is connected with the main exhaust valve;
所述液体补给管一端的端部设有与供液源相连通的液体补给口，该液体补给口位于动反应器内筒与窑头定反应器内筒的连接面处或位于动反应器内筒与窑尾定反应器内筒的连接面处；One end of the liquid supply pipe is provided with a liquid supply port connected to the liquid supply source, and the liquid supply port is located at the connection surface between the inner cylinder of the dynamic reactor and the inner cylinder of the fixed reactor at the kiln head or in the dynamic reactor. The connection surface between the cylinder and the inner cylinder of the fixed reactor at the end of the kiln;
所述进土料口阀门上设有调节动反应器内筒、窑头定反应器内筒及窑尾定反应器内筒内部气体压力的可选排气阀门；The valve of the inlet material inlet is provided with an optional exhaust valve for adjusting the internal gas pressure of the inner cylinder of the dynamic reactor, the inner cylinder of the fixed reactor at the kiln head and the inner cylinder of the fixed reactor at the kiln tail;
所述动反应器内筒的保温外层皮外表面安装有至少一个转动齿圈，所述动力传动装置包括安装在脚座上的动力源及连接于动力源输出轴上、并与所述转动齿圈啮合传动的齿轮，所述动力源通过齿轮与转动齿圈的传动驱动动反应器内筒及液体补给管同步旋转；所述动反应器内筒下方设有通过脚座支撑的内筒支撑平台，该内筒支撑平台上设有多个支撑托轮，与各所述支撑托轮对应的动反应器内筒的保温外层皮上均安装有滚圈，相对应的滚圈与支撑托轮滚动接触；所述窑头罩及窑尾罩的底部均设有支撑脚柱，该支撑脚柱放置在所述脚座上，通过该脚座支撑。At least one rotating ring gear is installed on the outer surface of the thermal insulation outer skin of the inner cylinder of the dynamic reactor. The ring gear meshes with the transmission gear, and the power source drives the inner cylinder of the dynamic reactor and the liquid supply pipe to rotate synchronously through the transmission of the gear and the rotating ring gear; the inner cylinder of the dynamic reactor is supported by a foot support under the inner cylinder Platform, the support platform of the inner cylinder is provided with a plurality of support rollers, and rolling rings are installed on the thermal insulation outer skin of the inner cylinder of the dynamic reactor corresponding to each of the support rollers, and the corresponding rolling rings and support supports Wheel rolling contact; the bottom of the kiln head cover and the kiln tail cover are all provided with supporting feet, and the supporting feet are placed on the feet and supported by the feet.
本发明的优点与积极效果为：Advantage of the present invention and positive effect are:
1.本发明具有密封性良好的特点，动反应器部分与定反应器部分通过动密封连接结构连接，保障反应器内土壤修复系统的稳定性。1. The present invention has the characteristics of good sealing, and the dynamic reactor part and the fixed reactor part are connected by a dynamic sealing connection structure, which ensures the stability of the soil remediation system in the reactor.
2.本发明可实现中温温控精密控制、水分养分原位补给及翻转混合充分供氧等过程，具有模拟泥浆流态均质化的特征，可有效增强污染土壤中的传质效率，提高污染物的生物可接触性及生物可利用性。2. The present invention can realize precise control of medium temperature and temperature, in-situ supply of water and nutrients, and sufficient oxygen supply by turning over and mixing. Bioaccessibility and bioavailability of substances.
3.本发明所实现的稳定中温控制，为微生物代谢提供了良好的温度条件；所实现的强制通风供氧为中温氧气供给，具有更好的热传导效率及更均匀的温度场分布；设置的通风温度控制室，可实现翻转同时同步强制通风，保障反应器筒体内充足的氧分压，促进微生物的好氧代谢反应。3. The stable medium temperature control realized by the present invention provides good temperature conditions for microbial metabolism; the forced ventilation oxygen supply realized is medium temperature oxygen supply, which has better heat conduction efficiency and more uniform temperature field distribution; the ventilation provided The temperature control room can be turned over and forced to ventilate simultaneously to ensure sufficient oxygen partial pressure in the reactor cylinder and promote the aerobic metabolic reaction of microorganisms.
4.本发明有效实现了固体土壤的流体式处理模式，节省水资源的同时也避免了二次污染物的产生，是一种高效环保的污染土壤修复设备。4. The invention effectively realizes the fluid treatment mode of solid soil, saves water resources and avoids the generation of secondary pollutants at the same time, and is an efficient and environmentally friendly contaminated soil remediation equipment.
附图说明Description of drawings
图1为本发明的内部结构示意图；Fig. 1 is a schematic diagram of the internal structure of the present invention;
图2为本发明动反应器主体的横截面结构示意图；Fig. 2 is the cross-sectional structure schematic diagram of the main body of the dynamic reactor of the present invention;
图3为本发明液体补给管及液体喷嘴的结构示意图；Fig. 3 is a structural schematic diagram of a liquid supply pipe and a liquid nozzle of the present invention;
图4为本发明动反应器主体的俯视剖视图；Fig. 4 is the top sectional view of the kinetic reactor main body of the present invention;
图5为本发明通风温度控制室的侧视结构示意图；Fig. 5 is a side view structural schematic diagram of the ventilation temperature control room of the present invention;
其中：1为窑头罩，2为液体补给管，3为液体喷嘴，4为内筒压力表，5为隔层压力表，6为滚圈，7为转动齿圈，8为动保温隔层，9为喷嘴挡盖，10为动密封连接件，11为固定连接件，12为定保温隔层，13为进土料通道，14为内筒排气通道，15为动内筒进土料口，16为进土料口阀门，17为可选排气阀门，18为排气净化罐，19为主排气阀门，20为支撑脚柱，21为动反应器内筒，22为螺旋导土料板，23为散土料板，24为内筒支撑平台，25为动力传动装置，26为内筒外皮，27为横梁，28为支撑托轮，29为窑尾罩，30为液体补给口，31为保温隔层注气通道，32为强制注气通道，33为总注气口，34为动内筒出土料口，35为保温隔层压力调节阀，36为出土料口阀门，37为排气净化罐支撑，38为脚座，39为窑头定反应器内筒，40为窑尾定反应器内筒，41为通风温度控制室，42为保温外层皮，43为温度控制室热传导层，44为弹簧。Among them: 1 is the kiln head cover, 2 is the liquid supply pipe, 3 is the liquid nozzle, 4 is the inner cylinder pressure gauge, 5 is the compartment pressure gauge, 6 is the rolling ring, 7 is the rotating gear ring, 8 is the dynamic insulation compartment , 9 is the nozzle cover, 10 is the dynamic sealing connector, 11 is the fixed connector, 12 is the fixed insulation interlayer, 13 is the soil feeding channel, 14 is the exhaust channel of the inner cylinder, and 15 is the soil feeding material of the dynamic inner cylinder 16 is the soil inlet valve, 17 is the optional exhaust valve, 18 is the exhaust purification tank, 19 is the main exhaust valve, 20 is the supporting foot column, 21 is the inner cylinder of the dynamic reactor, and 22 is the spiral guide Soil material board, 23 is loose soil material board, 24 is inner tube support platform, 25 is power transmission device, 26 is inner tube skin, 27 is beam, 28 is support roller, 29 is kiln tail cover, 30 is liquid supply 31 is the gas injection channel for the thermal insulation interlayer, 32 is the forced gas injection channel, 33 is the total gas injection port, 34 is the unearthed material opening of the dynamic inner cylinder, 35 is the pressure regulating valve for the thermal insulation interlayer, 36 is the unearthed material inlet valve, 37 Support for the exhaust purification tank, 38 is the foot, 39 is the inner cylinder of the reactor at the kiln head, 40 is the inner cylinder of the reactor at the kiln tail, 41 is the ventilation temperature control room, 42 is the outer skin of the heat preservation layer, and 43 is the temperature control Chamber heat conduction layer, 44 is a spring.
具体实施方式Detailed ways
下面结合附图对本发明作进一步详述。The present invention will be described in further detail below in conjunction with the accompanying drawings.
如图1～5所示，本发明包括窑头罩1、液体补给管2、动保温隔层8、定保温隔层12、动反应器内筒21、动力传动装置25、窑尾罩29、窑头定反应器内筒39、窑尾定反应器内筒40及通风温度控制室41，其中动反应器内筒21的左右两端分别设有窑头罩1和窑尾罩29，该窑头罩1及窑尾罩29的底部均设有支撑脚柱20，支撑脚柱20放置在脚座38上，通过脚座38支撑。As shown in Figures 1 to 5, the present invention includes a kiln head cover 1, a liquid supply pipe 2, a dynamic insulation interlayer 8, a fixed insulation interlayer 12, a dynamic reactor inner cylinder 21, a power transmission device 25, a kiln tail cover 29, The inner cylinder 39 of the fixed reactor at the kiln head, the inner cylinder 40 of the fixed reactor at the kiln tail, and the ventilation temperature control room 41, wherein the left and right ends of the inner cylinder 21 of the dynamic reactor are respectively provided with a kiln head cover 1 and a kiln tail cover 29. The bottoms of the head cover 1 and the kiln tail cover 29 are all provided with supporting feet 20, and the supporting feet 20 are placed on the feet 38 and supported by the feet 38.
动反应器内筒21为空心的圆柱状，外部设有保温外层皮42，该保温外层皮42与动反应器内筒21外表面的内筒外皮26之间形成动保温隔层8。动反应器内筒21的保温外层皮42外表面安装有至少一个转动齿圈7，动力传动装置25包括安装在脚座38上的动力源及连接于动力源输出轴上、并与转动齿圈7啮合传动的齿轮，动力源通过齿轮与转动齿圈7的传动驱动动反应器内筒21旋转。在动反应器内筒21的下方设有通过脚座38支撑的内筒支撑平台24，该内筒支撑平台24上设有多个支撑托轮28，与各支撑托轮28对应的动反应器内筒21的保温外层皮42上均安装有滚圈6，相对应的滚圈6与支撑托轮28滚动接触。本实施例在内筒支撑平台24上设置了两个支撑托轮28，这两个支撑托轮28对应的动反应器内筒21的保温外层皮42上各安装一个滚圈6，两个滚圈6对称设置于转动齿圈7的两侧，在动力传动装置25驱动动反应器内筒21旋转时起到滚动支撑的作用。动反应器内筒21的内壁上沿轴向分别设有螺旋导土料板2及散土料板23，螺旋导土料板22呈螺旋状、从动反应器内筒21的一侧轴向延伸至另一侧，螺旋导土料板22的螺旋圈数大于或等于两圈；散土料板23为多列，每列中的各散土料板23均与所在列上的螺旋导土料板22垂直连接。螺旋导土料板22与散土料板23沿径向深入动反应器内筒21内部的高度均小于或等于动反应器内筒21直径的四分之一。The inner tube 21 of the dynamic reactor is hollow cylindrical, and the outside is provided with an insulating outer skin 42, which forms a dynamic insulating interlayer 8 between the outer skin 42 and the inner tube outer skin 26 on the outer surface of the inner tube 21 of the dynamic reactor. At least one rotating ring gear 7 is installed on the outer surface of the thermal insulation outer layer skin 42 of the inner cylinder 21 of the dynamic reactor. The ring 7 meshes with the transmission gear, and the power source drives the inner cylinder 21 of the dynamic reactor to rotate through the transmission of the gear and the rotating ring gear 7 . Below the inner cylinder 21 of the dynamic reactor, an inner cylinder support platform 24 supported by a foot seat 38 is provided, and a plurality of support rollers 28 are arranged on the inner cylinder support platform 24, and the dynamic reactor corresponding to each support roller 28 Rolling rings 6 are installed on the heat-insulating outer skin 42 of the inner cylinder 21 , and the corresponding rolling rings 6 are in rolling contact with the support rollers 28 . In the present embodiment, two support rollers 28 are set on the inner cylinder support platform 24, and a rolling ring 6 is respectively installed on the thermal insulation outer skin 42 of the dynamic reactor inner cylinder 21 corresponding to the two support rollers 28, two The rolling rings 6 are arranged symmetrically on both sides of the rotating ring gear 7, and play the role of rolling support when the power transmission device 25 drives the dynamic reactor inner cylinder 21 to rotate. The inner wall of the dynamic reactor inner cylinder 21 is respectively provided with a spiral soil guide plate 2 and a loose soil material plate 23 along the axial direction. The spiral soil guide plate 22 is in a spiral shape, and one side of the driven reactor inner cylinder 21 is Extending to the other side, the number of spiral turns of the spiral soil guide material plate 22 is greater than or equal to two turns; the loose soil material plate 23 is a plurality of rows, and each loose soil material plate 23 in each row is all connected with the spiral soil guide plate 23 on the row. The sheets 22 are connected vertically. The heights of the spiral soil guide plate 22 and the scattered soil material plate 23 deep into the inner cylinder 21 of the dynamic reactor along the radial direction are less than or equal to a quarter of the diameter of the inner cylinder 21 of the dynamic reactor.
动反应器内筒21的保温外层皮42上沿轴向安装有液体补给管2，该液体补给管2随动反应器内筒21由动力传动装置25驱动同步旋转。液体补给管2内沿轴向均布有多个向动反应器内筒21内补液的液体喷嘴3，每个液体喷嘴3的出水端部均设有喷嘴挡盖9，该喷嘴挡盖9轴向截面的一端与液体喷嘴3铰接，另一端为自由端，每个液体喷嘴3内的下部均设有横梁27，喷嘴挡盖9通过弹簧44与该横梁27相连；喷嘴挡盖9的上表面边缘设有O型密封圈。由于液体喷嘴3是随动反应器内筒21旋转的，当旋转倒立(即液体喷嘴3出水端朝上)后，动反应器内筒21内的土壤会挤压喷嘴挡盖9，进而压缩弹簧；为了防止土壤进入到液体喷嘴3内而使液体喷嘴3堵塞的情况发生，本发明喷嘴挡盖9的外边缘位于液体喷嘴3出水端部外边缘的外侧(即喷嘴挡盖9的直径大于液体喷嘴3出水端的直径)，这样即使液体喷嘴旋转倒立后，喷嘴挡盖9会卡在液体喷嘴3的出水端，喷嘴挡盖9不会被压进液体喷嘴3内。A liquid supply pipe 2 is installed axially on the thermal insulation outer skin 42 of the inner cylinder 21 of the dynamic reactor. In the liquid supply pipe 2, there are a plurality of liquid nozzles 3 uniformly distributed in the axial direction in the inner cylinder 21 of the dynamic reactor. The outlet end of each liquid nozzle 3 is provided with a nozzle cover 9, and the nozzle cover 9 is axially arranged. One end to the section is hinged with the liquid nozzle 3, and the other end is a free end. The bottom of each liquid nozzle 3 is provided with a crossbeam 27, and the nozzle retaining cover 9 is connected to the crossbeam 27 by a spring 44; The edge is provided with an O-ring. Because the liquid nozzle 3 rotates with the inner cylinder 21 of the dynamic reactor, when the rotation is inverted (that is, the outlet of the liquid nozzle 3 faces upward), the soil in the inner cylinder 21 of the dynamic reactor will squeeze the nozzle cover 9, thereby compressing the spring In order to prevent soil from entering the liquid nozzle 3 and making the liquid nozzle 3 blocked, the outer edge of the nozzle retaining cover 9 of the present invention is positioned at the outside of the outer edge of the liquid nozzle 3 water outlet end (that is, the diameter of the nozzle retaining cover 9 is greater than the liquid nozzle 3). diameter of the nozzle 3 water outlet), so that even after the liquid nozzle rotates upside down, the nozzle cover 9 will be stuck on the water outlet of the liquid nozzle 3, and the nozzle cover 9 will not be pressed into the liquid nozzle 3.
喷嘴挡盖9的自由端在补液时被经过的液体冲开，并在补液后通过弹簧44的弹力复位，通过O型密封圈与液体喷嘴3密封抵接。液体补给管2一端的端部设有与供液源相连通的液体补给口30，该液体补给口30位于动反应器内筒21与窑头定反应器内筒39的连接面处或位于动反应器内筒21与窑尾定反应器内筒40的连接面处；本实施例的液体补给口30位于动反应器内筒21与窑尾定反应器内筒40的连接面处。The free end of the nozzle cover 9 is washed away by the passing liquid during liquid replenishment, and is reset by the elastic force of the spring 44 after liquid replenishment, and seals against the liquid nozzle 3 through the O-ring. The end of one end of the liquid supply pipe 2 is provided with a liquid supply port 30 connected to the liquid supply source, and the liquid supply port 30 is located at the connection surface between the inner cylinder 21 of the dynamic reactor and the inner cylinder 39 of the fixed reactor at the kiln head or at the joint of the inner cylinder 39 of the dynamic reactor. The connecting surface of the reactor inner cylinder 21 and the fixed reactor inner cylinder 40 at the end of the kiln; the liquid supply port 30 in this embodiment is located at the connecting surface of the dynamic reactor inner cylinder 21 and the fixed reactor inner cylinder 40 at the kiln end.
窑头定反应器内筒39及窑尾定反应器内筒40分别安装于窑头罩1、窑尾罩29内，窑头定反应器内筒39、窑尾定反应器内筒40分别通过固定连接件11(如法兰)与窑头罩1、窑尾罩29相连，窑头定反应器内体39和窑尾定反应器内筒40分别通过动密封连接件10与动反应器内筒21的左右两端密封转动连接，动密封连接件10为套制结构，如O型密封圈。窑头定反应器内筒39及窑尾定反应器内筒40内分别设有与动保温隔层8相连通的定保温隔层12，在窑头定反应器内筒39内的定保温隔层12上或窑尾定反应器内筒40内的定保温隔层12上安装有保温隔层压力调节阀35，本实施例是在窑尾定反应器内筒40内的定保温隔层12上安装了保温隔层压力调节阀35，动保温隔层8与定保温隔层12内的气体通过该保温隔层压力调节阀35调节排出，进而调节动保温隔层8与定保温隔层12内的气体压力。窑头罩1内设有进土料通道13，该进土料通道13的一端与动反应器内筒21左端面圆周中心位置上设置的动内筒进土料口15要连，进而与动反应器内筒21的内部相连通，进土料通道13的另一端为内筒排气通道14，第三端连通有设置在窑头罩1表面开设的进土料口阀门16，进土料口阀门16上设有调节动反应器内筒21、窑头定反应器内筒39及窑尾定反应器内筒40内部气体压力的可选排气阀门17，该可选排气阀门17可作为备用排气口；由进土料口阀门16向动内筒进土料口15之间的进土料通道13为由上至下倾斜，以便待修复的污染土壤能够进入到动反应器内筒21中。窑头罩1内设有排气净化罐18，该排气净化罐18通过排气净化罐支撑37安装在窑头罩1内部，内筒排气通道14的一端与进土料通道13的另一端相连，该内筒排气通道14的另一端与排气净化罐18的入口相连通，排气净化罐18的出口与设置在窑头罩1上的主排气阀门19相连通。窑尾罩29的表面安装有出土料口阀门36，该出土料口阀门36通过通道与设置在动反应器内筒21右端面上的动内筒出料口34相连通，进而连通于动反应器内筒21的内部。动内筒出料口34与出土料口阀门36之间的通道由上至下倾，以便于修复后的土壤排出。The inner cylinder 39 of the fixed reactor at the kiln head and the inner cylinder 40 of the fixed reactor at the kiln tail are respectively installed in the kiln head cover 1 and the kiln tail cover 29, and the inner cylinder 39 of the fixed reactor at the kiln head and the inner cylinder 40 of the fixed reactor at the kiln tail pass through the The fixed connector 11 (such as a flange) is connected with the kiln head cover 1 and the kiln tail cover 29, and the inner body 39 of the fixed reactor at the kiln head and the inner cylinder 40 of the fixed reactor at the kiln tail are respectively connected to the inside of the dynamic reactor through the dynamic sealing connector 10. The left and right ends of the cylinder 21 are sealed and rotated, and the dynamic sealing connector 10 is a sleeve structure, such as an O-ring. The inner cylinder 39 of the fixed reactor at the kiln head and the inner cylinder 40 of the fixed reactor at the kiln end are respectively provided with a fixed thermal insulation interlayer 12 communicating with the dynamic thermal insulation interlayer 8. On the layer 12 or on the fixed insulation interlayer 12 in the fixed reactor inner cylinder 40 at the end of the kiln, a heat insulation interlayer pressure regulating valve 35 is installed. The heat preservation interlayer pressure regulating valve 35 is installed on the top, the gas in the dynamic heat preservation interlayer 8 and the fixed heat preservation interlayer 12 is regulated and discharged through the heat preservation interlayer pressure regulating valve 35, and then the dynamic heat preservation interlayer 8 and the fixed heat preservation interlayer 12 are adjusted. gas pressure inside. The kiln head cover 1 is provided with an earth-feeding passage 13, and one end of the earth-feeding passage 13 is to be connected with the movable inner cylinder earth-feeding mouth 15 provided on the circumference center position of the left end face of the dynamic reactor inner cylinder 21, and then connected with the dynamic The inside of the reactor inner cylinder 21 is connected, the other end of the soil inlet passage 13 is the inner cylinder exhaust passage 14, and the third end is connected with the soil inlet valve 16 provided on the surface of the kiln head cover 1, and the soil inlet valve 16 is connected to the inner cylinder. The outlet valve 16 is provided with an optional exhaust valve 17 for adjusting the inner cylinder 21 of the dynamic reactor, the inner cylinder 39 of the fixed reactor at the kiln head and the inner cylinder 40 of the fixed reactor at the kiln tail. The optional exhaust valve 17 can be As a spare exhaust port; the soil inlet channel 13 from the soil inlet valve 16 to the soil inlet 15 of the moving inner cylinder is inclined from top to bottom, so that the polluted soil to be repaired can enter the dynamic reactor In barrel 21. An exhaust purification tank 18 is arranged inside the kiln head cover 1, and the exhaust purification tank 18 is installed inside the kiln head cover 1 through an exhaust purification tank support 37. One end is connected, and the other end of the inner tube exhaust channel 14 communicates with the inlet of the exhaust purification tank 18 , and the outlet of the exhaust purification tank 18 communicates with the main exhaust valve 19 arranged on the kiln head cover 1 . The surface of the kiln tail cover 29 is equipped with an unearthed material port valve 36, which communicates with the dynamic inner cylinder discharge port 34 arranged on the right end face of the dynamic reactor inner cylinder 21 through a channel, and then communicates with the dynamic reactor. The inside of the inner cylinder 21 of the device. The passage between the moving inner barrel discharge port 34 and the discharge port valve 36 is inclined from top to bottom, so that the soil after repairing is discharged.
窑尾罩29内分别设有向动保温隔层8和定保温隔层12内供气的保温隔层注气通道31和向动反应器内筒21内部供气的强制注气通道32。窑尾罩29的表面上开设有注气口33、内部安装有通风温度控制室41，保温隔层注气通道31及强制注气通道32的一端分别与动保温隔层8、动反应器内筒21内部相连通，另一端均由通风温度控制室41穿过、并与注气口33相连通，在保温隔层注气通道31及强制注气通道32外表面与通风温度控制室41内壁之间为温度控制室热传导层43。The kiln tail cover 29 is respectively provided with an insulating interlayer air injection channel 31 for supplying air to the dynamic insulating interlayer 8 and the fixed insulating interlayer 12 and a forced air injection channel 32 for supplying air to the inner cylinder 21 of the dynamic reactor. The surface of the kiln tail cover 29 is provided with a gas injection port 33, and a ventilation temperature control chamber 41 is installed inside. One end of the thermal insulation interlayer gas injection channel 31 and the forced gas injection channel 32 are respectively connected with the dynamic thermal insulation interlayer 8 and the inner cylinder of the dynamic reactor. 21 is internally connected, and the other end is passed through by the ventilation temperature control chamber 41 and communicated with the gas injection port 33, between the outer surface of the thermal insulation interlayer gas injection channel 31 and the forced gas injection channel 32 and the inner wall of the ventilation temperature control room 41 It is the heat conduction layer 43 of the temperature control chamber.
本发明的工作原理为：Working principle of the present invention is:
本发明的核心部件为旋转生物反应器筒体部分，即由动反应器内筒21为主体，外部包制保温外层皮4。待修复的污染土壤由进土料口阀门16进入进土料通道13，再由内筒进土料口15进入到动反应器内筒21中。动力传动装置25驱动动反应器内筒21和液体补给管2同步旋转，动反应器内筒21的转动分为顺时针方向转动及逆时针方向转动，两种转动方向交替进行，土壤排出时选择所需旋转方向持续转动。利用动反应器内筒21内的螺旋导土料板22和散土料板23将污染土壤由动反应器内筒21的一端向另一端输送。在输送过程中，可在任意运行时刻向动反应器内筒21中以及动保温隔层8和定保温隔层12中注气。分别通过保温隔层注气通道31为动保温隔层8和定保温隔层12注气，通过强制注气通道32为动反应器内筒21注气；高温气体经过通风温度控制室时，由通风温度控制室内流动的风与高温气体进行热交换，使高温气体变为中温气体，中温空气的温度调节由通风温度控制室41的风速、风量完成。动保温隔层8和定保温隔层12内的气体通过保温隔层压力调节阀35调节排出，动反应器内筒21内的气体通过位于窑头罩1内的进土料通道13和内筒排气通道14排出，其中可选排气阀门17作为备用排气口，内筒排气通道14连接排气净化罐18并通过主排气阀门19排出气体。The core part of the present invention is the cylinder part of the rotating bioreactor, that is, the inner cylinder 21 of the dynamic reactor is the main body, and the outer skin 4 of heat preservation is wrapped on the outside. The polluted soil to be repaired enters the soil material passage 13 through the soil material inlet valve 16, and then enters the dynamic reactor inner cylinder 21 through the soil material inlet 15 of the inner cylinder. The power transmission device 25 drives the inner cylinder 21 of the dynamic reactor and the liquid supply pipe 2 to rotate synchronously. The rotation of the inner cylinder 21 of the dynamic reactor is divided into clockwise rotation and counterclockwise rotation. The desired direction of rotation continues to turn. The contaminated soil is transported from one end of the dynamic reactor inner cylinder 21 to the other end by using the spiral soil guide plate 22 and the loose soil material plate 23 in the dynamic reactor inner cylinder 21 . During the conveying process, gas can be injected into the inner cylinder 21 of the dynamic reactor and the dynamic insulating layer 8 and the fixed insulating layer 12 at any running time. Inject gas into the dynamic insulation interlayer 8 and the fixed insulation interlayer 12 respectively through the gas injection channel 31 of the thermal insulation interlayer, and inject gas into the inner cylinder 21 of the dynamic reactor through the forced gas injection channel 32; when the high-temperature gas passes through the ventilation temperature control room, the The wind flowing in the ventilation temperature control room exchanges heat with the high-temperature gas, so that the high-temperature gas becomes a medium-temperature gas. The gas in the dynamic insulation interlayer 8 and the fixed insulation interlayer 12 is regulated and discharged through the pressure regulating valve 35 of the insulation interlayer, and the gas in the inner cylinder 21 of the dynamic reactor passes through the soil feed channel 13 and the inner cylinder located in the kiln head cover 1 The exhaust channel 14 is exhausted, and the optional exhaust valve 17 is used as a backup exhaust port. The inner tube exhaust channel 14 is connected to the exhaust purification tank 18 and exhausts the gas through the main exhaust valve 19.
在本发明运行过程中，液体补给选择在液体喷嘴3与水平面处于相互垂直位置时进行，液体补给时间节点依据土壤处理工况需求而定；补给的液体通过液体补给口30进入到液体补给管2中，进而流到各个液体喷嘴3处，利用液体的身重以及补给的压力，克服弹簧44的弹力，使喷嘴挡盖9开启，向动反应器内筒21中补液；补液完成后，喷嘴挡盖9通过弹簧44的弹力作用复位，关闭喷嘴挡盖9，并与动反应器内筒21隔离。During the operation of the present invention, the liquid supply is selected when the liquid nozzle 3 and the horizontal plane are in a mutually vertical position, and the liquid supply time node is determined according to the requirements of the soil treatment conditions; the supplied liquid enters the liquid supply pipe 2 through the liquid supply port 30 , and then flow to each liquid nozzle 3, utilize the body weight of the liquid and the pressure of the supply, overcome the elastic force of the spring 44, make the nozzle cover 9 open, and replenish liquid in the inner cylinder 21 of the dynamic reactor; after the liquid replenishment is completed, the nozzle cover 9 is reset by the elastic force of the spring 44, closes the nozzle cover 9, and isolates it from the inner cylinder 21 of the dynamic reactor.
Claims (10)
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| CN111420978A (en) * | 2020-04-26 | 2020-07-17 | 陈爱华 | Method for restoring heavy metal contaminated soil in mining area |
| CN112916610A (en) * | 2021-01-25 | 2021-06-08 | 苏州科技大学 | Soil treatment device and soil treatment method |
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| CN108500058B (en) | 2020-05-26 |
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