Mechatronic Systems 2

Applications in Material Handling Processes and Robotics

Leonid Polishchuk, Orken Mamyrbayev, Konrad Gromaszek

• Publisher: Routledge
• Year: 2021
• Print ISBN: 9781032105857
• eBook ISBN: 9781000482584
• Edition: 1
• Topic: Technology & Engineering
• Subtopic: Civil Engineering
• Index: Technology & Engineering

The second volume of the series is devoted to applications of mechatronics in material processing and robotics. Both classical machining methods, such as extrusion, forging and milling, and modern ones, such as plasma and ultrasonic machining, are analyzed. An extensive part covers the modeling of these processes, also from a phenomenological point of view. The study analyzes the issues related to robotics in various technological processes as well.

Chapter 1 Development of perspective equipment for the regeneration of industrial filters

I. Sevostyanov, I. Zozulyak, Y. Ivanchuk, O. Polischuk, K. Koval, W. Wójcik, A. Kalizhanova, and A. Kozbakova

DOI: 10.1201/9781003225447-1

Contents

1. 1.1 Introduction
2. 1.2 Analysis of literature data and problem statement
3. 1.3 Materials and research methods
4. 1.4 Development of equipment for the regeneration of ion-exchange resin
5. 1.5 Conclusion
6. References

1.1 Introduction

The problem of the lack of clean drinking water is becoming urgent for an increasing number of regions in different countries, especially in large cities with high levels of environmental pollution and in industrial zones. Quality water is a determining factor for the food and chemical industry, pharmacology, microbiology, and microelectronics. In addition, in Europe, including Belarus, Russia, and the Ukraine, there are quite a few areas with high natural hardness of water. In this regard, industrial and household filters and filter systems are increasingly being used.

One of the main stages of high-quality water purification is its degreasing and softening. In most cases, they are implemented using ion-exchange resin cartridge filters as filter fillers. However, in the process of using such filters, when cleaning sufficiently hard water, they lose their performance within a year. It should be added that the majority of enterprises and private users of these filters are interested in their regeneration. The latter is carried out using a 10% solution of salt. The regenerated resin is soaked in the salt solution for 8–10 hours. At the same time, for sufficiently high-quality recovery, it is necessary to ensure periodic mixing of the resin in the salt solution with a velocity of v_min = 0.01 m/s. This is needed to penetrate into the lower layers of the portion of consumables. However, this is not always done, and therefore, regeneration is incomplete, and the life of such cartridges will be limited. Further, it is necessary to consider the viscosity of the mixed material. According to our experimental data, it is μ_{m =} 1.32–1.38 Pa/s, as well as the true resin density of ρ_{m =} 1.04·10⁻³ kg/m³.

Thus, the actual task is the selection or development of equipment for the effective mixing of ion-exchange resin in saline solution. This equipment should be compact, reliable, inexpensive, and convenient in operation.

1.2 Analysis of literature data and problem statement

From the known equipment, the most suitable are the agitators and mixers for wet dispersed materials. They are used in construction and in the food industry. Mixers and mixers for food production are divided into (Dragilev & Drozdov, 1999; Saravacos, 2002) high-speed and low-speed, uninterrupted, and periodic action, with stationary fixed and nonstationary chambers with screw, vane, rotor, anchor, propeller, turbine, drum, and finger actuators, providing radial, axial, or radial–axial flows of a stirred medium. Taking into account the above conditions and requirements for equipment for mixing ion-exchange resin in saline solution, batch mixers with a stationary fixed chamber and a radial–axial flow of the mixed solution are most suitable. Then, in accordance with the diagram given in (Dragilev & Drozdov, 1999), it is necessary to use propeller turbines with flat blades, paddle, or frame mixers, and mixers for mixing materials with the above viscosity (Bartholomai, 1987, Hakansson et al., 2016a, b).

Figure 1.1 shows the scheme of the predeterminer PR-3 with a turbine agitator (Dragilev & Drozdov, 1999). It is used in sugar beet production, the executive elements of which are the blades (9, 12, and 13), mounted on a shaft (8), driven in rotation by an electric motor (7). In this case, the blades (9) are designed to remove foam in the duct (5), and mixing the product coming through the nozzle (4) provides the blades (12). The blades (13) serve to prevent congestion when removing the product for unloading through the nozzle at the bottom of the pre-defector. The mixing process is also facilitated by counter-patches (11), mounted on the inner surface of the housing (10). In our opinion, the mixing process is effectively carried out only in the lower central part of this unit, while the upper and peripheral layers are less affected. In addition, the circulation and return of the product to the zone of more intensive mixing are not ensured. With a shaft rotation frequency of 8 n = 64 min⁻¹ and a case diameter of 10 D = 2.4 m (Dragilev & Drozdov, 1999), the average linear velocity of the product being mixed is shown in equation (1.1...

Table of contents

• Cover
• Half Title
• Title Page
• Copyright Page
• Table of Contents
• List of editors
• List of contributors
• 1 Development of perspective equipment for the regeneration of industrial filters
• 2 Intelligent implants in dentistry: Realities and prospects
• 3 Modeling of the exhaustion and regeneration of the resource regularities of objects with different natures
• 4 Increase in durability and reliability of drill column casing pipes by the surface strengthening
• 5 Experimental research of forming machine with a spatial character of motion
• 6 Research of ANSYS Autodyn capabilities in evaluating the landmine blast resistance of specialized armored vehicles
• 7 Phenomenological aspects in modern mechanics of deformable solids
• 8 The determination of deformation velocity effect on cold backward extrusion processes with expansion in the movable die of axisymmetric hollow parts
• 9 Stress state of a workpiece under double bending by pulse loading
• 10 Tensor models of accumulation of damage in material billets during roll forging process in several stages
• 11 Synergetic aspects of growth in machining of metal materials
• 12 Theoretical and experimental studies to determine the contact pressures when drawing an axisymmetric workpiece without a blank flange collet
• 13 Modification of surfaces of steel details using graphite electrode plasma
• 14 Complex dynamic processes in elastic bodies and the methods of their research
• 15 Analysis of the character of change of the profilogram of micro profile of the processed surface
• 16 Investigation of interaction of a tool with a part in the process of deforming stretching with ultrasound
• 17 Robotic complex for the production of products special forms with filling inside made from dough
• 18 Theoretical preconditions of circuit design development for the manipulator systems of actuators of special-purpose mobile robots
• 19 Analysis of random factors in the primary motion drive of grinding machines
• 20 Dynamic characteristics of “tool-workpiece” elastic system in the low stiffness parts milling process
• 21 Modeling of contact interaction of microroughnesses of treated surfaces during finishing anti-friction non-abrasive treatment FANT
• 22 Practices of modernization of metal-cutting machine tool CNC systems
• 23 Improving the precision of the methods for vibration acceleration measurement using micromechanical capacitive accelerometers
• 24 Modeling of the technological objects movement in metal processing on machine tools
• 25 Physical bases of aggression of abstract objects existence
• 26 Development and investigation of changes in the form of metal when obtaining the crankshaft’s crankpin using free forging
• 27 Approaches to automation of strength and durability analysis of crane metal structures