DESIGN AND FABRICATION OF A RECIPROCATING SAND

Transcription

1 DESIGN AND FABRICATION OF A RECIPROCATING SAND SIEVING MACHINE BY OSUNSANYA OLALEYE OLUMIDE EM DEI>ARTMENT OF MECHANICAL ENGINEERING SCI-IOOL OF ENGINEERING AND ENGINEEIUNG TECHNOLOGY, FEDERAL UNIVERSITY OF TECHNOLOGY, MINNA, NIGEIUA. NOVEMBER, 2007

2 DESIGN AND I{ABIUCATION OF A RECIPROCATING SAND SIEVING MACHINE BY OSUNSANYA OLALEYE OLUMIDE EM A PROJECT REPORT SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF BACHELOR OF ENGINEEIUNG (B. ENG) DEGREE IN MECHANICAL ENGINEERING, FEDERAL UNIVERSITY OF TECHNOLOGY, MINNA, NIGERIA. NOVEMBER, 2007 II

3 DECLARATION I, Osunsanya Olaleye Olumide, here by affirm that this project titled "Design and fabrication of a reciprocating sand siev ing machine" was ca rri ed out by me under tile supervi sion of Engr. Egbe and submitted to the Department of Mechanical Eng in ee rin g, Federal University of Technology Minna. OSUNSANY A OLALEYE OLUMIDE '4-D.~c.c:::~Ct~Cl~-v ] / - [1-0 7 ld Date) III

4 CERTIFICATION This is to certify that this project titled "Design and fabrication of reciprocating sand sieve machine" was carried out by Osunsanya Olaleye Olumide under the supervision ofmr. (Engr.) Egbe and submitted to the department of Mechanical Engineering Federal University of Technology Minna, in partial fulfillment of the requirements for the award of Bachelor of Engineering (B. Eng.) in Mechanical Engineering. Mr. Egbc -dlf-~- ----'~lll/ G/HJ 7 Project Supervisor Sign and Date Dr. Mudiare Head 0/ Department Sign and Date External Examinc.' Sign and Date IV

5 DEDICATION Thi s project is dedicated to The One in Whom [ Li ve, [n Whom [ Move and Have My being with out Him I am naught, and to My Parents Mr. and Mrs. Osusa nya. Thank Y OLI for always being th ere. v

6 ACKNOWLEDGEMENT Thanks are to almighty God for helping me and giving me the privilege of. und e rl a ~in g thi s proj ect and also my superviso r, Engineer Egbe for hi s help and close supervi sion of thi s proj ec t. I also want to acknowledge the help of Illy family for their support and enco urage ment they gave to me. VI

7 ABSTRACT The reciprocating sand sieve machine is a machine that is used for the sorting/screening/separation of sand. The machine works on the principle of reciprocation where a to and fro motion is responsible for the agitation (shaking) of the sand leading to separation of coarse particles (stones gravel) fro m the required particles (fine and clean sand).the machine fabricated for building constructions to screen and that will be used as aggregate for plastering and concrete work where the quality of sand increases the quality and finishing of the work. VII

8 Table of Contents Cover Page Title Page Declaration Certifica ti on Dedication Acknow ledgement Abstract Table of Content Notation II III,IV v VI VII VIII IX List of Figures List of Tables XI Chapter One: INTRODUCTION 1.1 Introduction 1.2 Principle of Operation 3 Chapter Two: LITERATURE REVIEW Overvi ew Sieve Types Gyrating Screens Vibrating Screens Stati onary Sc reens System Description Chapter Three: THEORY OF DESIGN AND ANALYSIS 3.1 Design Consid erations 8 viii

9 Des ign Descripti ons Sieving Unit Transmi ss ion Unit Stand Mode of Operati on Des ign Operati on Power requirements Bending and Torsion Analys is Be lt dri ve analys is II Des ign ca lcul at ions Design Spec ificati ons Power Requirements V-Be lt transmi ss ion Bendin g and Torsion Analys is Belt Selec tion Bearing Selecti on Chapter Fo ur: MATE RI AL SE LECTION AND ESTIMATE Materi al se lecti on Mild Stee l 4.2 Constructi on Siev in g Unit and Discharge Shaft Support (Stand) 4.3 Cost Estimate Direct Labour Cost IX

10 4.3.2 Direct Material Cost Over Head Cost Chapter Five: CONCLUS ION AND RECOMMENDATIONS Conc lusion R ecojl1l11end ati ons REFERENCES 36 x

11 List of Figures Figure 2. I Figure 3.1 Vibrating Screens V belt arran gement Figure 3.2 Figure 3.3 Figu re 3.4 Figure 3.5 a Figure 3.5 b V BELT T RANSM ISS IONS Verti ca l force diagram Horizontal force diagram Figure 3.6 X I