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Mathematical Problems of Jute Spreader Machine

Mathematical Problems of Jute Spreader Machine
Engr Avijit Dey
Production Officer
Fabian Group, Chittagong
Mobile: 01836124490
E-mail: avijitdey43@yahoo.com



Jute spreader machine
Jute spreader machine is used to comb and open the pieced out of long reeds of jute. It is done combing action on the jute. To convert them into an even and continuous sliver which receives an even application of batching emulsion. To prepare ribbon like sliver jute spreader machine is used.

Problems of jute spreader machine

Problem-1
A jute spreader machine is running with following data:

  • Dollop wt =1000 lbs, 
  • Clock gearing const =10, 
  • Clock charge pinion = 20T. 
  • Draft const = 350, 
  • Emulsification applied =25%, 
  • Feed wt in lbs/1000yds?
Delivery wt/100yds?

Solution:

Clock length = Clock gearing const × clock change pinion
                     =10×20=200Yds.

Feed mt count/wt of feed jute in lbs/100Yds = 1000÷200×100
                                                                      =500 lbs/100Yds.

             Draft const       350
Draft = ………………. = ……. =10
                 DCP             35

Emulsion applied = (25÷100)×500 = 125 lbs/100yds.

After application of emulsion wt of total feed material = (500+125)
                                                                               = 625 lbs/100yds

                                         Feed material wt       625
Delivered sliver weight = ………………..…. = ………..
                                                Draft                 100

= 6.25lb/1000 Yds.(ANS)

Problem -2:
Find the production in lbs/hr of S. M/C from the following data:


  • Delivered speed = 60yds/min. 
  • Draft =12, 
  • Efficiency = 80%, 
  • Emulsion applied = 20%, 
  • Wt of feed material = 6lb/yds.
Solution:

Production in lbs/hour = (6÷12) × 60 × 60 × (100+20) ÷ 100 × 0.8 

                                 = 1728 (ANS).

Problem-3:
Find out the production of spreader M/C from the following data:


  • Dollop wt = 36lbs, 
  • Clock length = 6yds,
  • Delivery speed = 60yds/min,. 
  • M/C draft = 12 , 
  • Emulsion applied =12%
Solution:

                                                                          Delivery speed × dollop wt
Production of spreader machine in lbs/hour = ………………………………
                                                                              Draft × clock length

= 60 × 60 × 36 ÷ (12×6) × (100+12) ÷ 100

= 2016Yds/hr. (ANS).

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