Quality circle

1. CHP QUALITY CIRCLE
BLACK DIAMOND

2. TEAM DETAILS
Facilitator- Mr. Rana Sanjeev Singh
Team Members:
1. Bipin Sinha(Team Leader)
2. Krishna Raj Shail
3. Ramesh Chaudhary
4. Rahul Kurmi
5. Gurpreet Singh
6. Abhinandan Rathore

3. Problem Identification
Sl No Problems Weightage Category
A B C
1 Problem in manual / automatic operation of flap gate 7 X
2 Ring hammer breaking in both Ring Granulators 6 X
3 Dislodging of liner plates from chutes surfaces 4 X
4
Frequent Bearing failure & Cracking of support beam as well as side
wall in VGF 5 X
5 High Vibration in Conv. 8A & 8B drive 4 X
6 High Vibration in Conv. 10 A head end drive 8 X
7 Spillage of coal in feeding zone in conv. 4AB 4 X
Category A: MINIMUM INVOLVEMENT OF OTHER DEPT. IN SOLVING THEM
Category B: INVOLVEMENT OF OTHER DEPT. IS NECESSARY
Category C: MANAGEMENT SANCTION MAY BE NEEDED IN IMPLEMENTING THE SOLUTION
.

4. Problem Identification
Sl No Problems
Weightage
Category
A B C
8 Slippage of RBF 1/2 belting during high feeding 4 X
9 Spillage of dust coal from VGF discharge 4 X
10 Slippage of boom conveyor belt 3 X
11 Damaging of return idler at bend pulley area in conv. 4AB, 5AB, 8AB 5 X
12 Regular damaging of skirt rubber in conv. 4A 6 X
13 Chute jamming in Crusher House, TP 5/6/7 and Tripper Chute 5 X
14 Failure of PLC communication in Stacker Reclaimer 4 X
15 Frequent Damage of skirt rubber 5 X

5. Problem Identification
Sl No Problems Weightage
Category
A B C
16 Removal of iron particle in conv. 3C and 10 A 4 X
17
Coal spillage in conv. 3C 5
X
18 Coal fine dust on all conv. head end
5
X
19
Vibration in Conv. 5A
8
X
20 Vibration in Conv. 9B
8
X
WEIGHTAGE IS ALLOTTED ON THE FREQUENCY OF OCCURRENCE IN PAST THREE
MONTHS. WEIGHTAGE DECREASES IF THE SOLUTION OF THE PROBLEM IS PROVIDED
FOR NOW

6. WEIGHTAGE OF PROBLEMS IDENTIFIED
0
1
2
3
4
5
6
7
8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
weightage
weightage

7. Sl. No.EQUIPMENTS
Last reading
date
CLASS OF
EQUIPMENT
MAX. VIB. (Vel in
mm/ Sec)
EQUIPMENT
CONDITION IN
Jan'15
EQUIPMENT
CONDITION IN
DEC'14
EQUIPMENT
CONDITION IN
NOV'14
1 Crusher # 1A 13-Jan 3 6 MARGINAL CRITICAL MARGINAL
2 Crusher # 1B 21-Jan 3 10.50 MARGINAL MARGINAL
3 CONVEYOR - 8A 29-Dec 3 8.70 MARGINAL MARGINAL
4 CONVEYOR - 8B 27-Oct 3 5.60
5 CONVEYOR - 9A 27-Oct 3 6.80
6 CONVEYOR - 9B 29-Dec 3 13.2 CRITICAL MARGINAL
7 CONVEYOR - 10A 3-Sep 3 14.2
8 CONVEYOR - 3C 10-Jan 3 3.9 NORMAL NORMAL NORMAL
9 CONVEYOR - 4A 29-Dec 3 7.2 MARGINAL MARGINAL
10 CONVEYOR - 4B 10-Jan 3 6.90 MARGINAL MARGINAL
11 CONVEYOR - RBF # 1 29-Dec 3 5.00 MARGINAL MARGINAL
12 CONVEYOR - RBF # 2 10-Jan 3 3.5 NORMAL NORMAL
13 CONVEYOR - 5A 13-Jan 3 12.5 CRITICAL CRITICAL MARGINAL
14 CONVEYOR - 5B 21-Jan 3 6.5 MARGINAL MARGINAL MARGINAL
15 CONVEYOR - 6A 29-Dec 3 6 MARGINAL MARGINAL
16 CONVEYOR - 6B 12-Dec 3 7.60 MARGINAL NORMAL
17 CONVEYOR - 7A 29-Dec 3 3 NORMAL NORMAL
18 CONVEYOR - 7B 12-Dec 3 7.6 MARGINAL MARGINAL

8. Next Project
• Decreasing the High Vibration in conveyor
drive