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R.H. Wohlbier ■

Dear Sir,

In one of the projects we are using man less operation of stacker/reclaimer. Machine will position /work itself based on the commends given.

Lotus wireless have developed the soft ware. Detail I can give you, but I do not know how to attach the same. Any way it is better to write directly to them.

Regards.

A.Banerjee ■

Dear Sir,

We will install stacker/reclaimer without operater in the machine. I can give you detail write up on the but how to attach , I do not know. LOTUS WIRELSS HAS DEVELOPED THE SOFT.

Regards.

A.Banerjee ■

Hello,

I think you are referring to the automatic reclaiming operation by linear travel rail mounted reclaimer (or stacker reclaimer) having bucket wheel on slewing and luffing boom. The automatic operation by such machines is in use, I think since more than 3 - 4 decades. As for the degree of automation following two - three versions are in use:

1) The machine is positioned by manual push button operation to commence the reclamation of selected module (segment of stockpile). The travel steps, choosing the applicable bench, applicable slewing angle, etc. are entered as an input for the automatic operation. If the stockpile remains to be of uniform pattern then it might be just repetition of the earlier input. The machine will automatically go on reclaiming for the selected steps or travel distance. After reaching this position machine will stop automatically and is traveled back by manual command and set for the automatic reclamation of the next bench. The operator would be present on the machine to see that the operation is going on smoothly and acts as a safety against accident / mishap. This operational mode refers to the module reclamation. Such automation I think is quite common.

2) Same as sr. no. 1 but it is not necessary to have operator on the machine for all the time. Possibly such reclaiming machine is given in a plant located in very difficult climate (Arctic). In such cases the designer / supplier may be using a longer module so that involvement of operator becomes minimum. In such machines bench type reclaiming could be also suitable.

Degree of automation is a flexible issue and it could be made highly automatic, but, only difficulty is that the stockpile may not have 100% uniform cross section because it is susceptible to variation in the material characteristics (moisture content, etc.), and it demands very disciplined way of functioning. This information is of general nature. You can refer to the manufacturer of the stacker reclaimer machines for the specific information, options, etc.

For deciding / designing the automation, it is also essential to have thorough knowledge (or back-up) about the mechanical and functional aspects of the machine and the need for the specific application.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Author of Book : Belt Feeder Design and Hopper Bin Silo

Advisor / Consultant for Bulk Material Handling System & Issues.

Pune, India.

Tel.: 0091 (0)20 25871916

Email: parimul@pn2.vsnl.net.in ■

Originally Posted by I G Mulani

Hello,

I think you are referring to the automatic reclaiming operation by linear travel rail mounted reclaimer (or stacker reclaimer) having bucket wheel on slewing and luffing boom. The automatic operation by such machines is in use, I think since more than 3 - 4 decades. As for the degree of automation following two - three versions are in use:

1) The machine is positioned by manual push button operation to commence the reclamation of selected module (segment of stockpile). The travel steps, choosing the applicable bench, applicable slewing angle, etc. are entered as an input for the automatic operation. If the stockpile remains to be of uniform pattern then it might be just repetition of the earlier input. The machine will automatically go on reclaiming for the selected steps or travel distance. After reaching this position machine will stop automatically and is traveled back by manual command and set for the automatic reclamation of the next bench. The operator would be present on the machine to see that the operation is going on smoothly and acts as a safety against accident / mishap. This operational mode refers to the module reclamation. Such automation I think is quite common.

2) Same as sr. no. 1 but it is not necessary to have operator on the machine for all the time. Possibly such reclaiming machine is given in a plant located in very difficult climate (Arctic). In such cases the designer / supplier may be using a longer module so that involvement of operator becomes minimum. In such machines bench type reclaiming could be also suitable.

Degree of automation is a flexible issue and it could be made highly automatic, but, only difficulty is that the stockpile may not have 100% uniform cross section because it is susceptible to variation in the material characteristics (moisture content, etc.), and it demands very disciplined way of functioning. This information is of general nature. You can refer to the manufacturer of the stacker reclaimer machines for the specific information, options, etc.

For deciding / designing the automation, it is also essential to have thorough knowledge (or back-up) about the mechanical and functional aspects of the machine and the need for the specific application.

Regards,

Ishwar G Mulani.

Author of Book : Engineering Science and Application Design for Belt Conveyors.

Author of Book : Belt Feeder Design and Hopper Bin Silo

Advisor / Consultant for Bulk Material Handling System & Issues.

Pune, India.

Tel.: 0091 (0)20 25871916

Email: parimul@pn2.vsnl.net.in

Dear Mr. Mulani,

In INDIA we are going to install first without any man-power. So as of date there is no such machine.

Regards.

A.Banerjee ■

OK lads,

You can position the machine and cut benches,and luff and slew all over the place without a human being in sight. Koch offered me such a machine in 2000 and it was old hat then. It would have even been complete with stockpile scanning and blend logging. Fantastic: but still not rocket science.

But deary me, a tooth has loosened and dislodged. It looks like it will finish up getting rammed into the backside of the skirting or somewhere similarly unpleasant.

Before the rip detector, (have you got one for this short belt?) remembers to do its thing wouldn't it have been nice if there had been a handy man around to spot the approaching problem and do his thing?

But maybe Indian machinery is so reliable that most of the posts on these forums are pure fiction. Then again perhaps the illustrious automation system includes optical scanning throughout the whole stockyard. With time, I can see a few cracks developing. ■

Originally Posted by louispanjang

OK lads,

You can position the machine and cut benches,and luff and slew all over the place without a human being in sight. Koch offered me such a machine in 2000 and it was old hat then. It would have even been complete with stockpile scanning and blend logging. Fantastic: but still not rocket science.

But deary me, a tooth has loosened and dislodged. It looks like it will finish up getting rammed into the backside of the skirting or somewhere similarly unpleasant.

Before the rip detector, (have you got one for this short belt?) remembers to do its thing wouldn't it have been nice if there had been a handy man around to spot the approaching problem and do his thing?

But maybe Indian machinery is so reliable that most of the posts on these forums are pure fiction. Then again perhaps the illustrious automation system includes optical scanning throughout the whole stockyard. With time, I can see a few cracks developing.

Dear Louispanjang,

I have about 45 years of experience with reclaiming of iron ore,coal etc @up to 5000TPH.In India I have not come across any remote controlled Reclaimer.May be some one is going to install one.As you told,the damage of belts by loosened liner,teeth or scrap can be best avoided by alert manual operation.Best out put also can be achieved by manual operation.

Rgds,

Narayanan Nalinakshan. ■