技术领域technical field
本发明涉及油田含油固体废弃物处理技术领域，具体是一种节能型油基钻屑热解吸炉系统。The invention relates to the technical field of oilfield solid waste treatment, in particular to an energy-saving oil-based drilling cuttings thermal desorption furnace system.
背景技术Background technique
在油气勘探开发生产中，废弃油基泥浆和含油钻屑处置不当将造成水资源、土壤等的严重污染，并制约开发进度，因此油基泥浆和含油钻屑的无害化处理普遍受到重视。In oil and gas exploration, development and production, improper disposal of waste oil-based mud and oily drilling cuttings will cause serious pollution of water resources, soil, etc., and restrict development progress. Therefore, the harmless treatment of oil-based mud and oily drilling cuttings has generally received attention.
热解吸方法是近年国际上用于油田污泥处理的新技术。即通过对油田污泥加热，使污泥升温到足够温度，挥发性的烃类物（油份）从泥中挥发、分离出来，泥土因而得以净化。分离出来的挥发性烃类物经再处理，进行回用或燃烧排放。与其他技术相比，热解吸气法具有高效、快速、无二次污染、安全及保证达到无害化指标的优势。The thermal desorption method is a new technology used in the treatment of oilfield sludge in the world in recent years. That is, by heating the oilfield sludge, the sludge is heated to a sufficient temperature, and the volatile hydrocarbons (oil) are volatilized and separated from the sludge, so that the sludge can be purified. The separated volatile hydrocarbons are reprocessed for recycling or combustion. Compared with other technologies, the pyrolysis gas absorption method has the advantages of high efficiency, rapidity, no secondary pollution, safety and guarantee of harmless targets.
国内专利CN 104496136 A《含油固废间接加热热解吸处理装置及方法》、CN104402185 A《一种油田废弃物热分解装置》均分别公开了一种含油固废的热脱附工艺技术及装置。然而这些技术均未考虑热解吸过程中所产生的高温烟气和高温干渣余热的回收与利用，不可避免的造成热解吸过程能耗过高，生产成本居高不下的问题。Domestic patents CN 104496136 A "Indirect Heating Thermal Desorption Treatment Device and Method for Oily Solid Waste" and CN104402185 A "A Thermal Decomposition Device for Oilfield Waste" both disclose a thermal desorption process technology and device for oily solid waste. However, these technologies do not consider the recovery and utilization of high-temperature flue gas and high-temperature dry slag waste heat generated in the thermal desorption process, which inevitably leads to high energy consumption and high production costs in the thermal desorption process.
发明内容Contents of the invention
本发明的目的在于克服上述不足，提供一种节能型油基钻屑热解吸炉系统及方法，用于油基泥浆和含油钻屑的热解吸处理。The purpose of the present invention is to overcome the above disadvantages and provide an energy-saving oil-based drilling cuttings thermal desorption furnace system and method for thermal desorption treatment of oil-based mud and oily drilling cuttings.
为实现上述技术目的，本发明提供的方案是：一种节能型油基钻屑热解吸炉系统，包括依次首尾密封相接的上料装置、进料锁气室、预热干燥装置和间接热解吸炉管，间接热解吸炉管的主体部分置于加热炉装置中，间接热解吸炉管输出端的干渣出口经过卸料锁气室后连接干渣冷却装置，间接热解吸炉管输出端的热解吸气出口连接热解吸气净化处理组件，热解吸气净化处理组件包括依次连接的旋风除尘装置、冷凝装置和引风机，冷凝装置的冷凝口连接油水分离装置，引风机通过风管连接间接热解吸炉管的未凝气体入口。In order to achieve the above technical purpose, the solution provided by the present invention is: an energy-saving oil-based drilling cuttings thermal desorption furnace system, including a feeding device, a feeding lock chamber, a preheating drying device and an indirect Thermal desorption furnace tube, the main part of the indirect thermal desorption furnace tube is placed in the heating furnace device, the dry slag outlet at the output end of the indirect thermal desorption furnace tube is connected to the dry slag cooling device after passing through the discharge lock chamber, and the indirect thermal desorption The pyrolysis suction gas outlet at the output end of the furnace tube is connected to the pyrolysis suction gas purification treatment component. The pyrolysis suction gas purification treatment component includes a cyclone dust removal device, a condensation device and an induced draft fan connected in sequence. The condensation port of the condensation device is connected to the oil-water separation device. The fan is connected to the non-condensed gas inlet of the indirect thermal desorption furnace tube through the air duct.
而且，所述预热干燥装置与干渣冷却装置之间通过设有循环水泵驱动的余热回收管构成介质余热循环系统，采用脱盐水为循环介质。Moreover, a waste heat recovery pipe driven by a circulating water pump is provided between the preheating drying device and the dry slag cooling device to form a medium waste heat circulation system, and desalinated water is used as the circulation medium.
而且，所述余热回收管包括将循环介质由预热干燥装置导向干渣冷却装置的低温管，和将循环介质由干渣冷却装置导向预热干燥装置的高温管，循环水泵设置于低温管上，高温管上设置余热锅炉。Moreover, the waste heat recovery pipe includes a low temperature pipe leading the circulating medium from the preheating drying device to the dry slag cooling device, and a high temperature pipe leading the circulating medium from the dry slag cooling device to the preheating drying device, and the circulating water pump is arranged on the low temperature pipe , A waste heat boiler is set on the high temperature tube.
而且，所述加热炉装置设有高温烟气出口和低温烟气入口，高温烟气出口和低温烟气入口之间通过依次设有余热锅炉和循环风机的烟道构成烟气余热循环系统，循环风机下游的烟道开设支管连接烟囱。Moreover, the heating furnace device is provided with a high-temperature flue gas outlet and a low-temperature flue gas inlet, and a flue gas waste heat circulation system is formed between the high-temperature flue gas outlet and the low-temperature flue gas inlet through a flue provided with a waste heat boiler and a circulation fan in sequence, and the circulation A branch pipe is provided in the flue downstream of the fan to connect to the chimney.
而且，所述间接热解吸炉管为耐热钢板加工而成的密闭腔体，其一端设有油基泥浆入口，另一端设有热解吸气出口和干渣出口，间接热解吸炉管内设有由动力源驱动的油基泥浆输送装置，间接热解吸炉管外部设置烟气折流板和翅片。Moreover, the indirect thermal desorption furnace tube is a closed chamber made of heat-resistant steel plates, one end of which is provided with an oil-based mud inlet, and the other end is provided with a pyrolysis gas outlet and a dry slag outlet. An oil-based mud delivery device driven by a power source is installed inside the tube, and flue gas baffles and fins are set outside the indirect thermal desorption furnace tube.
而且，所述油基泥浆输送装置包括两条平行设置的具有螺旋式或桨叶式叶片的输送轴，第一输送轴由动力源通过减速机直接驱动，第二输送轴通过开齿轮由减速机间接驱动，使得两输送轴旋向相反。Moreover, the oil-based mud conveying device includes two conveying shafts with helical or paddle blades arranged in parallel, the first conveying shaft is directly driven by a power source through a reducer, and the second conveying shaft is driven by a reducer through an open gear. Indirect drive makes the two conveying shafts rotate in opposite directions.
而且，所述加热炉装置为钢板加工而成的矩形箱体，内部敷设耐火材料，加热炉装置内部通过辐射屏隔成上下两个腔体，上腔体设有间接热解吸炉管安装孔、高温烟气出口，下腔体设有加热装置安装孔、低温烟气入口、未凝气体入口。Moreover, the heating furnace device is a rectangular box made of steel plates, and refractory materials are laid inside. The inside of the heating furnace device is divided into upper and lower cavities by a radiation screen, and the upper cavity is provided with an indirect thermal desorption furnace tube installation hole. , High-temperature flue gas outlet, the lower chamber is equipped with a heating device installation hole, a low-temperature flue gas inlet, and an uncondensed gas inlet.
而且，所述辐射屏为耐热钢板或陶瓷片加工而成；加热装置优选地为柴油燃烧机，安装在加热装置安装孔上，向下腔体供热。Moreover, the radiation screen is made of heat-resistant steel plate or ceramic sheet; the heating device is preferably a diesel burner, installed on the installation hole of the heating device, and supplies heat to the lower cavity.
而且，所述预热干燥装置为空心桨叶式干燥机或空心螺旋干燥机；所述干渣冷却装置为空心桨叶式冷却机或空心螺旋冷却机；所述进料锁气室和出料锁气室为双插板阀、星形卸灰阀和电动锁风翻板阀中的一种或两种。Moreover, the preheating drying device is a hollow paddle dryer or a hollow screw dryer; the dry slag cooling device is a hollow paddle cooler or a hollow spiral cooler; The air lock chamber is one or two of double gate valve, star dust unloading valve and electric wind lock flap valve.
本发明还提供一种用于油基钻屑热解吸处理方法，包括如下步骤。The present invention also provides a thermal desorption treatment method for oil-based drill cuttings, which includes the following steps.
步骤一，将需要处理的油基泥浆或含油钻屑送至预热干燥装置内，加热至100~150℃范围内。Step 1: Send the oil-based mud or oily drill cuttings to be processed to the preheating drying device and heat it to a temperature within the range of 100-150°C.
步骤二，将预热后的油基泥浆或含油钻屑送至间接热解吸炉管内加热至350~550℃范围内，将挥发性的油分从泥中挥发、分离出来。Step 2: Send the preheated oil-based mud or oil-containing drill cuttings to the indirect thermal desorption furnace tube and heat it to 350-550°C to volatilize and separate the volatile oil from the mud.
步骤三，挥发出来的油分及水分，通过热解吸气净化处理组件依次完成除尘、冷凝、油水分离工序，使之转换为液态油、液态水和未凝气等三部分。Step 3: The volatilized oil and water are converted into three parts: liquid oil, liquid water and uncondensed gas through the pyrolysis absorption air purification treatment module to complete the dust removal, condensation, and oil-water separation processes in sequence.
步骤四，将液态油收集起来或作为加热炉装置的燃料，将液态水收集起来，将未凝气送入加热炉装置内焚烧处理，将净化的泥通过干渣冷却装置进行排放。Step 4: Collect the liquid oil or use it as fuel for the heating furnace, collect the liquid water, send the uncondensed gas into the heating furnace for incineration, and discharge the purified mud through the dry slag cooling device.
其中，预热干燥装置内的热源来自干渣冷却装置和加热炉装置的余热。Wherein, the heat source in the preheating drying device comes from the waste heat of the dry slag cooling device and the heating furnace device.
本发明的有益效果在于：采用介质余热循环系统回收高温烟气、高温干渣的余热，并回收的热量送至预热干燥装置内对待处理污泥的预热，使高温烟气、外排干渣的排放温度处于较低水平，较通常手段节能30%；采用烟气余热循环系统使加热装置内的高温烟气快速循环，强化了高温烟气与热解吸炉管之间的换热，进而提高整个热解吸装置的反应速率，加热效率提高20~30%。The beneficial effect of the present invention is that: adopting the medium waste heat circulation system to recover the waste heat of high-temperature flue gas and high-temperature dry slag, and sending the recovered heat to the preheating drying device for preheating the sludge to be treated, so that the high-temperature flue gas is drained outside The discharge temperature of the slag is at a low level, saving 30% energy compared with the usual method; the flue gas waste heat circulation system is used to quickly circulate the high-temperature flue gas in the heating device, which strengthens the heat exchange between the high-temperature flue gas and the thermal desorption furnace tube, In turn, the reaction rate of the entire thermal desorption device is improved, and the heating efficiency is increased by 20-30%.
附图说明Description of drawings
图1是本发明的结构原理图。Fig. 1 is a schematic diagram of the structure of the present invention.
图2是间接热解吸炉管和加热炉装置的结构示意图。Fig. 2 is a structural schematic diagram of the indirect thermal desorption furnace tube and the heating furnace device.
图3是图2中A-A面剖视图。Fig. 3 is a sectional view of plane A-A in Fig. 2 .
其中，00、上料装置，10、进料锁气室，20、预热干燥装置，31、间接热解吸炉管，32、油基泥浆入口，33、热解吸气出口，34、油基泥浆输送装置，341、第一输送轴，342、第二输送轴，343、减速机，344、开齿轮，35、干渣出口，36、烟气折流板，37、翅片，40、加热炉装置，41、上腔体，411、间接热解吸炉管安装孔，412、高温烟气出口，42、下腔体，421、加热装置安装孔，422、低温烟气入口，423、未凝气体入口，43、加热装置，44、辐射屏，51、旋风除尘装置，52、冷凝装置，53、油水分离装置，54、引风机，61、循环风机，62、烟囱，71、余热锅炉，72、循环水泵，73、集水槽，80、卸料锁气室，90、干渣冷却装置。Among them, 00. Feeding device, 10. Feed lock air chamber, 20. Preheating drying device, 31. Indirect thermal desorption furnace tube, 32. Oil-based mud inlet, 33. Pyrolysis and absorption gas outlet, 34. Oil Base mud conveying device, 341, first conveying shaft, 342, second conveying shaft, 343, reducer, 344, open gear, 35, dry slag outlet, 36, flue gas baffle, 37, fin, 40, Heating furnace device, 41, upper cavity, 411, indirect thermal desorption furnace tube installation hole, 412, high-temperature flue gas outlet, 42, lower cavity, 421, heating device installation hole, 422, low-temperature flue gas inlet, 423, Uncondensed gas inlet, 43, heating device, 44, radiation screen, 51, cyclone dust removal device, 52, condensation device, 53, oil-water separation device, 54, induced draft fan, 61, circulation fan, 62, chimney, 71, waste heat boiler , 72, circulating water pump, 73, sump, 80, discharge lock chamber, 90, dry slag cooling device.
具体实施方式detailed description
下面结合附图及实施例对本发明作进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
本实施例提供一种节能型油基钻屑热解吸炉系统，如图1所示，包括依次首尾密封相接的上料装置00、进料锁气室10、预热干燥装置20和间接热解吸炉管31，间接热解吸炉管31的主体部分置于加热炉装置40中，间接热解吸炉管31输出端的干渣出口35经过卸料锁气室80后连接干渣冷却装置90，间接热解吸炉管31输出端的热解吸气出口33连接热解吸气净化处理组件，保证含油污泥被顺利输送并完成预热、热解吸、冷却等过程。This embodiment provides an energy-saving oil-based drilling cuttings thermal desorption furnace system, as shown in Figure 1, including a feeding device 00, a feeding lock chamber 10, a preheating drying device 20 and an indirect The thermal desorption furnace tube 31 and the main part of the indirect thermal desorption furnace tube 31 are placed in the heating furnace device 40, and the dry slag outlet 35 at the output end of the indirect thermal desorption furnace tube 31 is connected to the dry slag cooling chamber after passing through the discharge lock chamber 80 The device 90, the pyrolysis gas outlet 33 at the output end of the indirect thermal desorption furnace tube 31 is connected to the pyrolysis gas purification treatment component to ensure that the oily sludge is smoothly transported and completes preheating, thermal desorption, cooling and other processes.
热解吸气净化处理组件包括依次连接的旋风除尘装置51、冷凝装置52和引风机54，冷凝装置52的冷凝口连接油水分离装置53，引风机54通过风管连接间接热解吸炉管31的未凝气体入口423。在引风机54的带动下，将接热解吸炉管中的热解吸气抽出，并完成除尘、冷凝、油水分离过程，热解吸气最终转换为回收油、回收水、未凝气三种状态，分别进行回收和处理，未凝气体最终送入加热炉装置40内焚烧处理。The thermal desorption gas purification treatment assembly includes a cyclone dust removal device 51, a condensing device 52, and an induced draft fan 54 connected in sequence. The condensation port of the condensing device 52 is connected to the oil-water separation device 53, and the induced draft fan 54 is connected to the indirect thermal desorption furnace tube 31 through the air duct. The uncondensed gas inlet 423. Driven by the induced draft fan 54, the pyrolysis suction gas connected to the thermal desorption furnace tube is extracted, and the process of dust removal, condensation, and oil-water separation is completed, and the pyrolysis suction gas is finally converted into recovered oil, recovered water, and uncondensed gas. These states are recovered and processed respectively, and the uncondensed gas is finally sent to the heating furnace device 40 for incineration.
进一步的，所述预热干燥装置20与干渣冷却装置90之间通过设有循环水泵72驱动的余热回收管构成介质余热循环系统，采用脱盐水为循环介质。Further, a waste heat recovery pipe driven by a circulating water pump 72 is provided between the preheating drying device 20 and the dry residue cooling device 90 to form a medium waste heat circulation system, and desalinated water is used as the circulation medium.
进一步的，所述余热回收管包括将循环介质由预热干燥装置20导向干渣冷却装置90的低温管，和将循环介质由干渣冷却装置90导向预热干燥装置20的高温管，循环水泵72设置于低温管上，高温管上设置余热锅炉71。Further, the waste heat recovery pipe includes a low temperature pipe leading the circulating medium from the preheating drying device 20 to the dry slag cooling device 90, a high temperature pipe leading the circulating medium from the dry slag cooling device 90 to the preheating drying device 20, and a circulating water pump 72 is arranged on the low-temperature pipe, and the waste heat boiler 71 is arranged on the high-temperature pipe.
进一步的，如图2所示，所述加热炉装置40设有高温烟气出口412和低温烟气入口422，高温烟气出口412和低温烟气入口422之间通过依次设有余热锅炉71和循环风机61的烟道构成烟气余热循环系统，循环风机61下游的烟道开设支管连接烟囱62。Further, as shown in FIG. 2, the heating furnace device 40 is provided with a high-temperature flue gas outlet 412 and a low-temperature flue gas inlet 422, and between the high-temperature flue gas outlet 412 and the low-temperature flue gas inlet 422, a waste heat boiler 71 and The flue of the circulating fan 61 constitutes a flue gas waste heat circulation system, and the flue downstream of the circulating fan 61 is provided with a branch pipe connected to the chimney 62 .
在循环水泵72的带动下，余热回收管内的液态脱盐水，首先送至干渣冷却装置90内，间接冷却干渣，并自身获得预热，然后进入余热锅炉71内，经过高温烟气的进一步加热转换为高温蒸汽，高温蒸汽再进入预热干燥装置20内，对待处理污泥进行间接预热后，转换为液体脱盐水，周而复始，将高温干渣余热和高温烟气余热回收，并用于待处理污泥的预热。余热回收管的低温管上可设置集水箱73，一方面可进一步冷却脱盐水，另一方面也可以方便观察介质余热循环系统的工作情况。Driven by the circulating water pump 72, the liquid desalted water in the waste heat recovery pipe is first sent to the dry slag cooling device 90, where the dry slag is indirectly cooled and preheated by itself, and then enters the waste heat boiler 71, where it is further heated by high-temperature flue gas. Heating is converted into high-temperature steam, and the high-temperature steam then enters the preheating and drying device 20. After indirect preheating of the sludge to be treated, it is converted into liquid desalinated water, and repeats itself. The waste heat of high-temperature dry slag and high-temperature flue gas is recovered and used Preheating of treated sludge. A water collecting tank 73 can be arranged on the low temperature pipe of the waste heat recovery pipe, on the one hand, the desalinated water can be further cooled, and on the other hand, the working conditions of the medium waste heat circulation system can be observed conveniently.
进一步的，所述间接热解吸炉管31为耐热钢板加工而成的密闭腔体，其一端设有油基泥浆入口32，另一端设有热解吸气出口33和干渣出口35，间接热解吸炉管31内设有由动力源驱动的油基泥浆输送装置34，间接热解吸炉管31外部设置烟气折流板36和翅片37，高温烟气在烟气折流板36和翅片37的扰流作用下，烟气被多次折流，强化了热交换效率。Further, the indirect thermal desorption furnace tube 31 is a closed chamber made of heat-resistant steel plates, one end of which is provided with an oil-based mud inlet 32, and the other end is provided with a pyrolysis suction outlet 33 and a dry slag outlet 35, The indirect thermal desorption furnace tube 31 is equipped with an oil-based mud delivery device 34 driven by a power source, and the indirect thermal desorption furnace tube 31 is equipped with a flue gas baffle 36 and fins 37 outside, and the high-temperature flue gas is deflected in the flue gas Under the turbulence effect of the plates 36 and the fins 37, the flue gas is deflected multiple times, which enhances the heat exchange efficiency.
进一步的，如图3所示，所述油基泥浆输送装置34包括两条平行设置的具有螺旋式或桨叶式叶片的输送轴，第一输送轴由动力源通过减速机直接驱动，第二输送轴通过开齿轮由减速机间接驱动，使得两输送轴旋向相反，这样两轴可以相互清理，防止污泥黏连。Further, as shown in Figure 3, the oil-based mud conveying device 34 includes two conveying shafts with helical or paddle blades arranged in parallel, the first conveying shaft is directly driven by the power source through the reducer, and the second The transmission shaft is indirectly driven by the reducer through the open gear, so that the two transmission shafts rotate in opposite directions, so that the two shafts can clean each other and prevent the sludge from sticking.
进一步的，所述加热炉装置40为钢板加工而成的矩形箱体，内部敷设耐火材料，加热炉装置40内部通过辐射屏44隔成上下两个腔体，上腔体41设有间接热解吸炉管安装孔、高温烟气出口412，下腔体42设有加热装置安装孔421、低温烟气入口422、未凝气体入口423。Further, the heating furnace device 40 is a rectangular box made of steel plates, and refractory materials are laid inside. The inside of the heating furnace device 40 is divided into upper and lower chambers by a radiation screen 44, and the upper chamber 41 is provided with an indirect pyrolysis chamber. Suction furnace tube installation hole, high temperature flue gas outlet 412, lower cavity 42 is provided with heating device installation hole 421, low temperature flue gas inlet 422, uncondensed gas inlet 423.
进一步的，所述辐射屏44为耐热钢板或陶瓷片加工而成；加热装置43优选地为柴油燃烧机，安装在加热装置安装孔421上，向下腔体42供热。Further, the radiation shield 44 is made of heat-resistant steel plate or ceramic sheet; the heating device 43 is preferably a diesel burner, installed on the heating device installation hole 421 , and supplies heat to the lower cavity 42 .
进一步的，所述预热干燥装置20为空心桨叶式干燥机或空心螺旋干燥机；所述干渣冷却装置90为空心桨叶式冷却机或空心螺旋冷却机；所述进料锁气室10和出料锁气室为双插板阀、星形卸灰阀和电动锁风翻板阀中的一种或两种。Further, the preheating drying device 20 is a hollow paddle dryer or a hollow screw dryer; the dry slag cooling device 90 is a hollow paddle cooler or a hollow screw cooler; the feed air lock chamber 10. The discharge air lock chamber is one or two of double gate valve, star dust unloading valve and electric wind lock flap valve.
本实施例还提供一种用于油基钻屑热解吸处理方法，包括如下步骤。This embodiment also provides a thermal desorption treatment method for oil-based drilling cuttings, including the following steps.
步骤一，将需要处理的油基泥浆或含油钻屑送至预热干燥装置20内，加热至100~150℃范围内。Step 1, sending the oil-based mud or oily drilling cuttings to be processed to the preheating drying device 20 and heating to a temperature within the range of 100-150°C.
步骤二，将预热后的油基泥浆或含油钻屑送至间接热解吸炉管31内加热至350~550℃范围内，将挥发性的油分从泥中挥发、分离出来。Step 2: Send the preheated oil-based mud or oil-containing drill cuttings to the indirect thermal desorption furnace tube 31 and heat it to 350-550°C to volatilize and separate the volatile oil from the mud.
步骤三，挥发出来的油分及水分，通过热解吸气净化处理组件依次完成除尘、冷凝、油水分离工序，使之转换为液态油、液态水和未凝气等三部分。Step 3: The volatilized oil and water are converted into three parts: liquid oil, liquid water and uncondensed gas through the pyrolysis absorption air purification treatment module to complete the dust removal, condensation, and oil-water separation processes in sequence.
步骤四，将液态油收集起来或作为加热炉装置40的燃料，将液态水收集起来，将未凝气送入加热炉装置40内焚烧处理，将净化的泥通过干渣冷却装置90进行排放。Step 4: Collect liquid oil or use it as fuel for the heating furnace device 40, collect liquid water, send uncondensed gas into the heating furnace device 40 for incineration, and discharge the purified mud through the dry slag cooling device 90.
其中，预热干燥装置20内的热源来自干渣冷却装置90和加热炉装置40的余热。Wherein, the heat source in the preheating drying device 20 comes from the waste heat of the dry slag cooling device 90 and the heating furnace device 40 .
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进或变形，这些改进或变形也应视为本发明的保护范围。The above descriptions are only preferred implementations of the present invention. It should be pointed out that for those of ordinary skill in the art, some improvements or modifications can be made without departing from the principle of the present invention. It should be regarded as the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342721.4ACN107033930A (en) | 2017-05-16 | 2017-05-16 | A kind of energy-saving oil-based drill cuttings thermal desorption furnace system |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342721.4ACN107033930A (en) | 2017-05-16 | 2017-05-16 | A kind of energy-saving oil-based drill cuttings thermal desorption furnace system |
| Publication Number | Publication Date |
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| CN107033930Atrue CN107033930A (en) | 2017-08-11 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201710342721.4APendingCN107033930A (en) | 2017-05-16 | 2017-05-16 | A kind of energy-saving oil-based drill cuttings thermal desorption furnace system |
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| CN (1) | CN107033930A (en) |
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