Positive Tubular Plate Filling Machines

Positive Tubular Plate Filling Machines
   
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Positive Tubular Plate Filling Machines

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Positive Tubular Plate Filling Machines

 
Filling Machine
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Technical Specifications
 
The positive tubular plate filling mechanism comprises of an electromagnetic vibrator modified to prevent lead dust spillage. The plate filling cassette with aluminum spacers is designed such that the plates are filled effortlessly with minimum duration of vibrator usage.

A hood around the vibrator contains the flying dust so that the dust collector can effectively pull it away from the operator. The dust collector with cartridge filter mechanism is so effective that all the flying dust pulled away from the operator to such an extent that the door of vibrator hood has to necessarily have an opening for air inlet.

The fine 5 to 15 micron airborne lead oxide dust flying within the hood around the vibrator is sucked in to the dust collector by air currents developed by 0.5 to 0.7 m/s air rushing in to the hood through the front door. The dust laden air then passes through the filter cartridges where dust particles are collected on the filter element surface and 99.99% clean air is exhausted out to atmosphere.

Due to dust collected on filter surface, the differential pressure across element starts to increase and during operation it remains steady between 100 to 150 mm WC indicating healthy operation of the unit.

This is achieved by means of a reverse pulse jet mechanism controlled by a solenoid operated pulse valve and electronic timer. The frequency of cleaning is controlled automatically to maintain the optimum differential pressure across the filter elements resulting in 99.99% dust collection efficiency.

Utility Requirement

•Electric Power : 9 H.P. Connected Load – 3 Phase
•Compressed Air : 6 kg/cm2
   
A Full View of The Filling Machine Complete With
   
 
- Feeder hopper
 
- Blender
 
- Rotary valve
 
- Vibrator with hood
  - Bottom bar fixing station & dust collector
   
FAQ's
 
We understand that there are certain queries that often asked and so we decided to bring forth to You, our clients and customers a common platform where all frequently asked questions and queries are answered to the best of our abilities.

1. What is the vibration mechanism ?

The vibration is achieved by using a electromagnetic vibrator table. It has been observed that dry filling of fine lead dust in tubular bags is best achieved using such a mechanism instead of unbalanced motors or cam type vibrators or jolters.

2. Can the vibration be adjusted ?

Yes – it can be adjusted using the controller provided in the control panel along with the Positive Tubular Plate Filling Machine. Additional settings can be done by adjusting the vibrator base bolts. Please refer to O & M manual for a detailed sketch and instructions pertaining to this adjustment.

3. Can the Positive Tubular Plate Filling Machine be used to fill 6 mm dia tubular bags ?

Yes – the machine can fill plates having.
  • 5.7 mm, 6.0 mm, 8.0 mm, 8.4 mm dia. tubular bags with correspondingly suitable spine thicknesses.
  • 25 spines, 23 spines, 19 spines or 15 spines tubular plates – up to a max. width of approx. 190 mm.
  • 95 mm, 105 mm … up to 540 mm ht. plates.

4. What is the duration required for filling?

The actual time of vibration filling is 1½ mins. However the loading of grids fitted with tubular bags into the cassette, subsequent vibration and unloading of filled plates from the cassette usually needs 4 to 6 mins. per cycle.

5. What is the expected productivity per 8 hr. shift?

The productivity shall depend on the speed with which the workmen load grids into the cassette and unload filled plates from the cassette. The min. productivity per eight hour shift shall be in the range of 600 to 800 nos. depending on plate size.

6. How exactly does the dust collector work?

The dust collector works very effectively pulling all dust away from the operators. The dust gets collected on the surface of the filter cartridges and clean air is exhausted out to the atmosphere. The blower fan remains ‘ON’ throughout creating the exhaust draft for the fine lead dust.
The dust collected on the surface of the filter cartridges is dislodged by means of reverse pulse jet of air at regular periodic intervals which is controlled by a timer using diaphragm valve. The dust is collected in a container at the bottom of the hopper. This container should be emptied periodically.

7. What exactly does the differential pressure gauge of dust collector indicate?

The differential pressure gauge indicates the pressure drop across the filter cartridge elements.
This differential pressure is an indicator of the condition of the filter elements. More the differential pressure – more the dust accumulated on the filter cartridge.

This pressure differential must be normally between 100 mm w.c. and 150 mm w.c.. The gauge has a full scale display up to 250 mm w.c. In case the indication exceeds 150 mm w.c. and remains there for long time you must check whether the exhaust flap is fully open. If yes, please close the flap up to 50% or more and check the gauge. In case the gauge indication is not as per recommendations and the suction of dust collector is not efficient / as required – remove the filter cartridges, clean it using compressed air and fit it in place again.

You can also try OFFLINE pulsing i.e. keep the blower ON for about 30 minutes or so after the production of filling has been stopped for the day.