Modernization of the bearing unit of WARMAN 6/4 pump units as part of import substitution, while maintaining the required service life to increase operational reliability and minimize technological, operational and economic costs

The main purpose of this work is  to modernize the bearing unit of WARMAN 6/4 pump units within the framework of import substitution, while maintaining the required resource  to increase operational reliability and minimize technological,  operational and economic costs.

To achieve this goal, it is necessary to carry out a number of tasks:

- analyze the operation of the flotation and pumping section of the concentrator of Svyatogor JSC;

- Study the design and operation  of WARMAN 6/4 pumps

- to modernize the bearing unit with the replacement of imported components with similar ones of our own production;

- Develop a technology for restoring bearing seats on the shaft and housing of the bearing unit;

- Make a number of technical and economic calculations to substantiate the adopted method of modernization.

CONTENT

INTRODUCTION.......................................................................

1 BRIEF DESCRIPTION AND PRODUCTION TECHNOLOGY, DESIGN AND PRINCIPLE OF OPERATION OF PUMPING EQUIPMENT, ANALYSIS AND PROBLEM STATEMENT...........................................................................

1.1 Brief description of the enterprise.................................

1.2 Flotation section and flowsheet.........................

1.3 Design, description and principle of operation of pumping equipment..................................................................

1.4 Features of the operation of bearing units, analysis and  causes of their malfunction................................................................

2 CALCULATION AND CONSTRUCTION SECTION........................

2.1 Kinematic analysis...................................................

2.2 Determination of the minimum shaft diameter.........................

2.3 Determination of bearing support reactions.........................

2.4 Bearing Selection.....................................................

2.5 Seal upgrades..............................................

3 BEARING SEAT RECONDITIONING TECHNOLOGY ON THE SHAFT AND BEARING HOUSING......................................................................

4 OPERATION AND MAINTENANCE OF THE PUMP.................

4.1 Critical and possible malfunctions in the pump, signs, causes and ways to eliminate them.........................................

4.2 Maintenance intervals........................

4.3 Safety precautions during repairs....................................

5 FEASIBILITY STUDY..................

CONCLUSION..................................................................

REFERENCES............................

Drawings: Bearing assembly and a number of parts.