Design optimization of a novel screw conveyor based system to scoop oil sludge from floor of storage tanks

Narayani, Bhavesh; Ravichandran, Santhosh; Rajagopal, Prabhu

doi:10.1016/j.upstre.2020.100029

Cited by 5 publications

(4 citation statements)

References 16 publications

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“…From the test data and calculated using Equations ( 11)- (14), respectively, the relevant data can be obtained as follows:…”

Section: Analysis Of Test Resultsmentioning

confidence: 99%

“…The theory introduced new equations that establish connections between the pressure gradient and torque with the geometric characteristics, shear stress, and material flow within the spiral conveyor. In 2021, Narayani et al [14] developed an innovative oil sludge excavation system based on spiral conveyors and devised a mathematical model to facilitate the design of a spiral conveyor capable of excavating maximum sludge per rotation. Computational fluid dynamics were employed for numerical simulations to visualize material flow in various system designs.…”

Section: Introductionmentioning

confidence: 99%

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Design and Experimental Study of Negative Pressure Spiral Separation and Reduction Device for Drilling Holes

Ren,

Huang,

Zhang

et al. 2024

Machines

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Currently, screw conveyors and negative pressure vacuum screens with negative pressure vibration units are used for handling drilling cuttings both domestically and internationally. However, there is currently no effective solution to address the high liquid content of drilling cuttings during their conveyance by screw conveyors. In this paper, a novel design scheme for a negative pressure spiral separation and reduction device is proposed based on an extensive literature survey. This device aims to effectively reduce the liquid content of drilling cuttings during their conveyance by screw conveyors, thereby minimizing the overall liquid content throughout the drilling process. The structural design of the negative pressure spiral separation and reduction device is conducted using theoretical analysis and 3D solid modeling methods, while strength analysis of the negative pressure suction unit is performed using a finite element method. Additionally, theoretical research on relevant process parameters is carried out, and an online real-time testing system for experiments is designed. An analysis of experimental results demonstrates that within 151 s, the liquid suction rate of the device can reach 51%, with an average flow speed of approximately 0.008 m/s, thus achieving the desired target for drilling cutting separation and reduction. By designing this new negative pressure spiral separation and reduction device, its feasibility has been verified through acceptable engineering results obtained from experimentation; furthermore, it aims to achieve an optimal liquid suction effect for drilling cuttings in order to enhance solid–liquid separation efficiency, as well as to improve drilling fluid recovery efficiency by conserving mud materials and reducing overall drilling costs.

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“…From the test data and calculated using Equations ( 11)- (14), respectively, the relevant data can be obtained as follows:…”

Section: Analysis Of Test Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Experimental Study of Negative Pressure Spiral Separation and Reduction Device for Drilling Holes

Ren,

Huang,

Zhang

et al. 2024

Machines

View full text Add to dashboard Cite

show abstract

“…It also provides significant advantages in terms of energy consumption. In addition, similar screw conveyors in the literature are generally produced using AC/DC motors or speed-regulating motors [13][14][15]. In this study, it has been shown that screw conveyors can be produced using different power sources.…”

mentioning

confidence: 88%

Determination of the Natural Frequency Change of Different Bayburt Stone (Tüfit) Sizes During the Transportation in the Screw Conveyor

ERBAYRAK,

KIRAR

2023

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The mechanism that carries the powder or tiny granular particles with the rotational movement of the spiral shaft is called the screw conveyor. The working principle of screw conveyors is transporting dust particles due to rotating the screw shaft placed in a cylindrical pipe with engine power. The transport process transfers the powder particles to the conveyor from the feed pipe at the top of the mechanism to the wings (helix) of the helix shaft. In this study, a scaled prototype of the screw conveyor was produced. Different Bayburt stone (Tüfit) sizes were transported utilizing the prototype, and natural frequency changes were measured during transportation. Consequently, it is observed that the different micron sizes of stone particles affect the natural frequency of the screw conveyor.

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“…designed and tested a novel screw conveyor-based system to scoop crude oil sludge from the floor of oil storage tanks. This proposed new system consists of a screw conveyor mounted on a 'C' shaped casing with a bearing on both sides driven by a waterproof motor through a worm drive [13]. M.L.…”

mentioning

confidence: 99%

An Improvement of Arjuna 1.0 Conveyor System for 3d Irradiation

Saefurrochman,

Purwanto,

Adabiah

et al. 2024

gnd

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An improved design of the conveyor system of Arjuna 1.0 electron accelerator for 3D object irradiation has been done. The penetration of low energy electrons is less than 1 cm in the surface, causing a challenge for the irradiation process for sterilization of 3D objects. We design a conveyor that can be rotated 360o to irradiate objects evenly. The dimension of this conveyor is 1750 x 600 x 800 mm and the maximum diameter of the object is 7 cm. Based on the Frame Bending Stress analysis to calculate the strength of the conveyor frame, it is shown that the maximum displacement is only 0.029 mm, which is very small so it will cause no disturbance to power transfer from the motor to the conveyor. The normal stress (Smax) is 3.926 MPa and the bending stress for Smax (Mx) and Smax (My), are 2.391 MPa and 3.925 MPa respectively. We also calculate the stress analysis of the 3 mm-thickness of the motor mount and found that the Von-Misses Stress, first, and third Principal Stress are 4.425 MPa, 5.01 MPa, and 1.95 MPa respectively. These results confirm that the design and the material used for the conveyor are safe because the stress is very low than the material’s yield strength which is 207 MPa. The power needed for this conveyor is 0.01724 kW, with a maximum speed is 880 rpm. The new model of 3D conveyor has been constructed and can be implemented to ARJUNA 1.0 to irradiate objects on all its surfaces

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Design optimization of a novel screw conveyor based system to scoop oil sludge from floor of storage tanks

Cited by 5 publications

References 16 publications

Design and Experimental Study of Negative Pressure Spiral Separation and Reduction Device for Drilling Holes

Design and Experimental Study of Negative Pressure Spiral Separation and Reduction Device for Drilling Holes

Determination of the Natural Frequency Change of Different Bayburt Stone (Tüfit) Sizes During the Transportation in the Screw Conveyor

An Improvement of Arjuna 1.0 Conveyor System for 3d Irradiation

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