scholarly journals Process equipment pump-controlled hydraulic drive: improving energy efficiency

2019 ◽  
Vol 643 ◽  
pp. 012098 ◽  
Author(s):  
A V Kozhukhova ◽  
O N Sakharova ◽  
I A Dmitrieva
Keyword(s):  
Energy Efficiency ◽  
Hydraulic Drive ◽  
Process Equipment

scholarly journals Mining Equipment Technical Condition Monitoring

2018 ◽  
Vol 41 ◽  
pp. 03020 ◽  
Author(s):  
Evgeny Kuzin ◽  
Vladimir Bakin ◽  
Dmitriy Dubinkin
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Condition Monitoring ◽  
Technical Condition ◽  
Process Equipment ◽  
Mining Equipment ◽  
The Earth ◽  
Vibration Parameters ◽  
Reducing Energy

The Earth, being the main object and operational basis for mining, is exposed to the greatest impact because of extracting minerals. Protection of elements of the biosphere, including subsoil, should provide for the provision of scientifically based and economically justified completeness and complexity of use. The article discusses the need to monitor the technical condition of mining equipment, as applied to assessing its technical condition and reducing energy consumption by this equipment. The dependence of energy consumption on vibration parameters and temperature of equipment surfaces is shown. The data of the results of vibration parameters monitoring are given. Criteria are given for estimating the energy efficiency of operation of process equipment and, accordingly, the influence of these parameters on the environment.

scholarly journals Increasing energy efficiency of walker dragline

2020 ◽  
Vol 59 (3) ◽  
pp. 131-139
Author(s):  
Nikolay Maksimovich SUSLOV ◽  
◽  
Stanislav Alekseevich CHERNUKHIN ◽  
Dmitriy Nikolaevich SUSLOV ◽  
◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Mining Industry ◽  
Hydraulic Drive ◽  
Open Pit ◽  
Open Pit Mining ◽  
Common Mechanism ◽  
Walking Mechanism ◽  
Additional Support ◽  
The Cost

Relevance of the work. Reducing the cost of mining in the course of open pit mining has always been considered one of the important tasks in the mining industry; it allows to reduce the cost of the extracted ore. When developing quarries, the most costly work, in which there is no direct mining, is the overburden of waste rocks. The method of stripping operations is one of the most efficient and highly productive, which uses a non-transport technology with a walking dragline excavator. Moving such powerful machines is energy-intensive and affects the efficiency of the machine as a whole, therefore, the modernization of the walking mechanism will increase the energy efficiency of the excavator and ultimately reduce the cost of mining. The most common mechanism for moving such machines is a hydraulically driven three-bearing mechanism. This paper describes the proposed modernization of such a walking mechanism, which makes it possible to get rid of two main disadvantages, namely, the lack of energy recuperation of the lifted machine along the path and the dragging of the base edge against the ground, which creates additional resistance to movement. The installation of hydraulic accumulators in the hydraulic system of the drive of the movement of the machine will allow accumulating the energy of the machine raised above the ground when walking, and the introduction of an additional support shoe into the support base of the machine will get rid of dragging the base. In general, the presented modernization of the mechanism will reduce the energy consumption of moving a dragline excavator with a three-bearing walking mechanism with a hydraulic drive and, ultimately, reduce the cost of mining. Purpose of the work: to improve the efficiency of the dragline as a whole by increasing the energy efficiency of its movement. Objectives: consider design changes to reduce the energy cost of moving the dragline. Results. A variant of adding a support shoe into the walking mechanism is considered, which makes it possible to eliminate the friction of the base against the rock along the path by completely separating the base from the ground. Calculations of energy consumption of mechanisms for different types of draglines with the existing and proposed mechanism are carried out. Conclusions, application of results. The calculations given in this paper allow us to conclude about the effectiveness of the changes made to the design of the walking mechanism. The proposed mechanism allows you to significantly reduce the cost of moving and get rid of the disadvantages inherent in the existing mechanism.

Hydro-mechanical systems of stationary and mobile technological machines

2019 ◽  
Author(s):  
Валентин Сидоренко ◽  
Valentin Sidorenko ◽  
Максим Полешкин ◽  
Maksim Poleshkin ◽  
Владимир Антоненко ◽  
...  
Keyword(s):  
Mechanical Systems ◽  
Real Life ◽  
Hydraulic Drive ◽  
Process Equipment ◽  
Hydraulic Systems ◽  
Drive Power ◽  
Power Sources ◽  
Hydraulic Motors ◽  
Basic Parameters ◽  
And Control

The tutorial discusses the basics of building hydro-mechanical systems, the composition of their components, the functional description, the element base, the methods for calculating the basic parameters and the determination of the characteristics of the elements of hydraulic systems. The study of circuit solutions of process equipment requires knowledge of the principles of operation of individual elements of the hydraulic drive: power sources, hydraulic motors, control, guide and control equipment, auxiliary devices. Presented hydroficated mobile and stationary technological equipment, allows for the example of real-life facilities to consolidate knowledge of the synthesis and analysis of hydro-mechanical systems.

scholarly journals Methods of Energy Efficiency Improvement by Modernisation of Hydraulic Installations at a Fishing Cutter at the Baltic Sea

2018 ◽  
Vol 1 (1) ◽  
pp. 561-566
Author(s):  
Marcin Szczepanek ◽  
Przemysław Rajewski ◽  
Dalibor Barta ◽  
Iwona Michalska-Pożoga
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Baltic Sea ◽  
Hydraulic Drive ◽  
Management Plan ◽  
The Baltic Sea ◽  
Energy Efficiency Improvement ◽  
Fishing Vessels ◽  
The Baltic ◽  
Hydraulic Devices

Abstract The Energy Efficiency Design Index (EEDI) became mandatory for new ships as well as the Ship Energy Efficiency Management Plan (SEEMP) for all ships due to the MEPC 62 (July 2011) along with the adoption of amendments to MARPOL Annex VI by the Parties to the MARPOL Annex VI. This was the first legally binding climate change treaty to be adopted since the Kyoto Protocol. The Ship Energy Efficiency Management Plan (SEEMP), which has been obligatory since 2013, did not to cover fishing cutters but triggered the implementation of energy efficiency audits due to fishing limits, high fuel prices, and free freight market. All the above caused that ship-owners started seeking ways for saving money and keep their business profitable. Apart from energy recovery installations, fishing vessels have been furnished with the latest technologies aimed at the reduction of energy consumption and at making ships greener. A research team of the Maritime University of Szczecin conducted energy efficiency audits on several fishing vessels operated on the Baltic Sea and stated that up to 40% of the energy is used during fishing operations by hydraulic devices installed at the fishing vessels. The paper presents the measurement results of energy consumption in typical operational states based on a selected fishing cutter operating at the Baltic Sea. The paper includes also the recommendations in terms modernization of hydraulic installations and the changes of control methods for devices with hydraulic drive. The calculations are also presented herein and they prove that it is possible to reduce energy consumption by a fishing cutter even by 20% while maintaining the unchanged operating parameters of the hydraulic devices.

Construction and Application of Energy Efficiency Index System in Cigarette Enterprises

2015 ◽  
Vol 1092-1093 ◽  
pp. 1607-1611
Author(s):  
Zhen Wei Tian ◽  
Jian Jun Wang ◽  
Shan Qing
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Index System ◽  
Emission Reduction ◽  
Efficiency Index ◽  
Energy Utilization ◽  
Process Equipment ◽  
Saving Rate ◽  
Energy Saving Potential ◽  
The Index System

In order to guide and standardize energy efficiency benchmarking in cigarette enterprises, promote energy-saving emission reduction work, this paper researches on how to structure the energy efficiency index system reasonably and scientifically. The index system is established from the enterprise, process, equipment aspect, which includes all links, such as conversion, purchase storage, delivery distribution, terminal energy consumption. The energy efficiency benchmarking can be implemented according to the energy efficiency index system, and the energy saving potential can be found out by discovering the problem of energy utilization in each link and each energy level. The application practice shows that the energy-saving rate can reach over 18%, and continue to promote energy-saving emission reduction of cigarette enterprises through carrying out the energy-saving reform on the basis of reasonable application of the energy efficiency index system.

scholarly journals PRESENTATION OF CRUSHING AND GRINDING COMPLEX AS SYSTEM WITH DISTRIBUTED PARAMETERS FOR ADAPTIVE CONTROL OF ORE DRESSING PROCESSES

2021 ◽  
Vol 447 (3) ◽  
pp. 104-111
Author(s):  
I. Marynych ◽  
O. Serdiuk ◽  
S. Ruban ◽  
O. Makarenko
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Distributed Control ◽  
Raw Materials ◽  
Raw Material ◽  
Process Equipment ◽  
Large Area ◽  
Distributed Parameters ◽  
Ore Preparation ◽  
Spatially Distributed

The article proposes representation of crushing and grinding complex in form of a system with distributed parameters of the reducing function of the processed raw materials size in order to increase the energy efficiency of entire ore preparation process. Despite the fact that many different automated control systems for domestic and foreign production technological process are now used in the ore preparation processes, there is still a need to solve the problems of optimal control of such objects in order to both reduce energy costs and improve the quality of the final product. In terms of energy consumption, grinding processes are superior to crushing processes, so it is necessary to consider the crushing and grinding complex as a whole to increase the whole process energy efficiency. Since the processes of crushing, grinding and classification are purely random and at any time are characterized by transient probabilities, and the crushing and grinding complex occupies a large area and is geographically distributed in space, it should be considered as a system with distributed parameters of raw material size reduction, recyclable. Redistribution of loads between the individual components of this complex in accordance with the current characteristics of processed ore and the state of process equipment allows to reduce the load on the final stage - it is grinding, which in turn contributes to the overall reduction of energy consumption. The peculiarity of this approach is the need for the formation of spatial-temporal controls on basis of spatially distributed control of the object, the use of appropriate feedback signals and regulators with spatially distributed control effects.

scholarly journals A Novel Energy-Efficient Wobble Plate Hydraulic Joint for Mobile Robotic Manipulators

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2915
Author(s):  
Delei Fang ◽  
Junhong Yang ◽  
Jianzhong Shang ◽  
Zhuo Wang ◽  
Yong Feng
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Structural Characteristics ◽  
Load Capacity ◽  
Hydraulic Drive ◽  
Operation Time ◽  
Robotic Manipulators ◽  
High Energy ◽  
Load Matching ◽  
System Energy

At present, mobile robotic manipulators have been greatly developed. However, these further promotions are limited by a low load capacity and short operation time. The above problems can be improved by using a hydraulic drive mode and increasing the system energy efficiency. In this paper, a novel energy-efficient wobble plate hydraulic joint is presented, which has the characteristics of having a small size, lightweight, large load capacity, and high energy efficiency. Based on the efficiency analysis in traditional robotic manipulators, this paper presents a novel hydraulic joint with a multi-chamber drive structure. Kinematics model and dynamics model are both established for the analysis of the mechanical characteristics, and the functional relationship between the input and output is depicted by numerical simulation. Based on the structural characteristics and control principle, the load matching controller is designed and specific control processes are formulated. Combined with a strategy of load matching, the servo control system is established and the energy-saving effect is verified by simulation. The result shows that the wobble plate hydraulic joint can change connections between a high-pressure circuit and different working chambers, which realizes the match between the output torque and load torque. With the load matching controller, the energy consumption of the wobble plate joint is greatly reduced, which contributes to a considerably improved energy efficiency. The research in this paper not only lays a theoretical foundation for the development of a wobble plate hydraulic joint, but also provides guidance for the improvement of the hydraulic system energy efficiency in mobile robotic manipulators.

Electrical Energy Conservation in Engineering Industry: A Case Study

2014 ◽  
Vol 619 ◽  
pp. 178-182
Author(s):  
Yogesh Pahariya ◽  
Rakesh Saxena
Keyword(s):  
Energy Efficiency ◽  
Total Energy ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Engineering Industry ◽  
Process Equipment ◽  
Energy Audit ◽  
Energy Saving Potential ◽  
Energy Balances

Energy efficiency is extremely important to all organisations, especially those that are energy intensive. Detailed studies to establish, and investigate, energy balances for specific plant departments or items of process equipment have been carried out. The energy audit of the industry (Indo-German Tool Room, Indore) has been done. It has been concluded that total energy saving potential of 1,28,560 KWH per year is possible by implementing the recommendations. Hence achievable saving is 13.85% of total annual electricity consumption. The total savings Rs.7,71,360/- per year with initial investment of Rs.12,79,000/-.

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