Download - Internship Presentation- SHALENDER
HINDUSTAN ZINC
Jumbo Utilization and Productivity
Submitted By:
SHALENDERB. Tech Part-II,IIT (BHU), Varanasi.
Project Guide:
Mr. Nathu Singh Choudhary,Associate General Manager- MiningRampura Agucha Underground Mine.
Objective of the Project
Identifying parameters affecting utilization and productivity of Jumbo
Identifying major causes of operational delays
Proposing suggestions to increase utilization and productivity
Methodology
Collecting data and calculating % Availability, % Utilization and Idle Time
Identifying major factors causing Jumbo to remain Idle Identifying factors affecting productivity of Jumbo Proposing ways to minimize Idle Time and Increase
Utilization Proposing ways to improve productivity
BD + Maintenance16%
Available Time84%
Total Time Pie Chart
BD + Maintenance Available Time
23%
12%
65%
Available Time Pie Chart
Operation Time Engine + Setup + Removal TimeIdle Time
Analysis
53%
30%
2%
13%
3%
Idle Time Pie Chart
Operator Unavailable Face UnavailableGEB Problem Water Hose & Supply ProblemDrill Consumables Unavailable
76%
20%
4%
Operator Unavailable
Shift Change Losses In-Shift Losses Excessive Heat
Time Analysis of a ShiftTotal Time Available Time BD + Daily Maintenance
Time
480 403.2 76.8
Available Time Operation Time Idle Time Engine + Setup + Removal Time
403.2 92.74 262.08 48.38
Idle Time Operator Unavailable
Face Unavailable
Gate End Box Problem
Water Hose & Supply Problem
Drill Consumables Unavailable
262.08 136.28 78.62 5.24 34.08 7.86
TIME CONSUMED IN VARIOUS OPERATIONS
*Time shown in above table does not include Travelling + Setup + Removal Time.Time consumed in various operations in South Section (as per Shubham Bansal’s report); in crosscut:Loose Scaling= 70 min, Rock Bolt Drilling= 72.5 min, Face Drilling= 137.5 min.
Cluster active faces near each other (Average Engine Time=33.2 minutes per shift)
Increase number of available faces Ensure better communication between operators of various machines
and mining mates Adequate number of jumbos, neither more nor less than required
(ensure one jumbo for two active faces)
SUGGESTIONS TO INCREASE UTILIZATION
Improve the quality of daily maintenance `to improve machine health
Improve operator skills Improve ventilation at the working face
SUGGESTIONS TO INCREASE PRODUCTIVITY
THANK YOU!