發(fā)布時(shí)間：2018-05-17 16:19

  本文選題：鉆屑甩干機(jī) + 結(jié)構(gòu)設(shè)計(jì)��； 參考：《西南石油大學(xué)》2017年碩士論文

【摘要】：過去,為了提高經(jīng)濟(jì)效益,各大油田往往將經(jīng)過沉降池、振動(dòng)篩和離心機(jī)等多級(jí)固控設(shè)備處理后的廢棄鉆屑就地深層掩埋,這給環(huán)境帶來了長期的影響。隨著國家環(huán)保標(biāo)準(zhǔn)的提高,國內(nèi)各大石油平臺(tái)開始重視廢棄鉆井鉆屑帶來的污染,并加大了資金投入,旨在緩解廢棄石油鉆屑處理不當(dāng),污染環(huán)境的現(xiàn)象。然而目前常用固控設(shè)備處理后的廢棄鉆屑含液量仍然較高,直接排放會(huì)造成環(huán)境的嚴(yán)重污染,并造成大量鉆井液的浪費(fèi)。為提高鉆井液的回收效率,降低對環(huán)境的污染,亟需更有效、經(jīng)濟(jì)的方式來處理廢棄鉆屑。此時(shí),鉆屑甩干機(jī)開始逐步運(yùn)用到廢棄鉆屑處理過程中來,鉆屑甩干機(jī)的引入使鉆屑處理變得高效簡單,降低環(huán)境污染的同時(shí)還可以回收廢棄鉆屑中的鉆井液提高經(jīng)濟(jì)效益。而且使用鉆屑甩干機(jī)處理廢棄鉆屑要比經(jīng)過復(fù)雜程序處理廢棄鉆屑成本低很多。鑒于此,本文設(shè)計(jì)了一種雙轉(zhuǎn)鼓鉆屑甩干機(jī),用以提高鉆屑處理量,緩解鉆屑甩干機(jī)工作過程中顆粒堵塞的現(xiàn)象,進(jìn)一步節(jié)約成本提高經(jīng)濟(jì)效益。本文主要進(jìn)行了以下幾個(gè)部分的工作:第一部分,通過調(diào)研發(fā)現(xiàn)鉆屑甩干機(jī)處理后的廢棄鉆屑含液量低于5%,符合HSE要求和6%OOC標(biāo)準(zhǔn)。但是研究鉆屑甩干機(jī)的一些現(xiàn)場案例后發(fā)現(xiàn),鉆屑甩干機(jī)運(yùn)轉(zhuǎn)過程中存在一些較大的不足之處,如鉆屑甩干機(jī)工作過程中篩網(wǎng)容易堵塞,處理量較小,差速系統(tǒng)造價(jià)高、維護(hù)困難等。第二部分,針對目前甩干機(jī)的不足之處,提出了一種雙轉(zhuǎn)鼓鉆屑甩干機(jī),介紹了雙轉(zhuǎn)鼓鉆屑甩干機(jī)的工作原理,利用機(jī)械設(shè)計(jì)相關(guān)理論對鉆屑甩干機(jī)的主要部件:螺旋刮刀、轉(zhuǎn)鼓、篩網(wǎng)、篩網(wǎng)軸、轉(zhuǎn)鼓軸和幾何形狀為等腰三角形的帶傳動(dòng)進(jìn)行了結(jié)構(gòu)設(shè)計(jì),為后續(xù)仿真模型的建模打下基礎(chǔ)。第三部分,分析了顆粒群在螺旋刮刀轉(zhuǎn)鼓-篩網(wǎng)模型和轉(zhuǎn)鼓-篩網(wǎng)模型中的受力情況,并簡單介紹了離散元理論,為后續(xù)運(yùn)用仿真分析顆粒的受力提供理論基礎(chǔ)。第四部分,提出了螺旋刮刀甩干機(jī)模型,并對比分析了低處理量下螺旋刮刀轉(zhuǎn)鼓-篩網(wǎng)模型和傳統(tǒng)轉(zhuǎn)鼓-篩網(wǎng)模型中顆粒的運(yùn)移情況,得出改進(jìn)后的螺旋刮刀轉(zhuǎn)鼓-篩網(wǎng)模型工作效率優(yōu)勢明顯。第五部分,運(yùn)用離散元軟件EDEM進(jìn)一步分析了鉆屑甩干機(jī)中螺旋角度、轉(zhuǎn)鼓高度和入料處理量、轉(zhuǎn)速差給顆粒群的運(yùn)移帶來的影響,得出了鉆屑甩干機(jī)工作的最佳工作參數(shù)和結(jié)構(gòu)參數(shù)。
[Abstract]:In the past, in order to improve economic efficiency, the waste drilling chips treated by multi-stage solid control equipment, such as settling pool, vibrating screen and centrifuge, were often buried deep in place in various oil fields, which had a long-term impact on the environment. With the improvement of national environmental protection standards, the major oil platforms in China began to pay attention to the pollution caused by the waste drilling cuttings, and increased the investment in order to alleviate the phenomenon of improper handling of waste oil drilling chips and pollution of the environment. However, the liquid content of waste drilling cuttings is still high after treatment of common solid control equipment, and the direct discharge will cause serious environmental pollution and waste a large amount of drilling fluid. In order to improve the recovery efficiency of drilling fluid and reduce the pollution to the environment, it is necessary to deal with the waste drilling debris in a more effective and economical way. At this time, the driller began to be gradually used in the process of waste drilling and cuttings treatment. The introduction of the drillers makes the treatment of drilling cuttings more efficient and simple, and can reduce the environmental pollution and improve the economic efficiency by recovering the drilling fluid from the waste drilling debris at the same time. Moreover, it is much cheaper to treat waste drilling chips by using drilling scraps drying machine than by complex procedures. In view of this, this paper designs a kind of double drum drilling chip flick dryer, which is used to increase the handling capacity of drilling chip, alleviate the phenomenon of particle blockage in the working process of the driller, and further economize the cost and increase the economic benefit. The main work of this paper is as follows: in the first part, it is found that the liquid content of the waste drilling chip is lower than 5, which conforms to the requirements of HSE and the standard of 6%OOC. However, after studying some field cases of the drillers, it is found that there are some shortcomings in the operation of the drillers, such as the sieve screen is easily blocked in the working process of the drillers, the handling capacity is relatively small, and the cost of the differential speed system is high. Maintenance difficulties, etc. In the second part, aiming at the deficiency of the drying machine at present, the paper puts forward a kind of double drum drilling chip drying machine, introduces the working principle of the double drum drilling chip drying machine, and applies the relevant theory of mechanical design to the main component of the drilling chip drying machine: the screw scraper. The structural design of drum, screen mesh shaft, drum shaft and belt drive with geometric shape of isosceles triangle is carried out, which lays the foundation for the modeling of subsequent simulation model. In the third part, the force of particle group in the model of spiral scraper drum screen mesh and drum screen mesh model is analyzed, and the discrete element theory is introduced briefly, which provides a theoretical basis for the subsequent application of simulation to analyze the force of particles. In the fourth part, the model of screw scraper flick dryer is put forward, and the movement of particles in spiral scraper drum sieve mesh model and traditional drum screen model is compared and analyzed. The improved screw scraper drum-screen model has obvious advantages in working efficiency. In the fifth part, the influence of screw angle, drum height, feed handling capacity and rotational speed difference on the movement of particle group is further analyzed by using discrete element software EDEM. The optimum working parameters and structure parameters are obtained.
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TE92

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