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4.2 STONER ADJUSTMENTS

All Stoners have four variable adjustments that must be properly adjusted
and balanced to obtain optimum separations. These are Feed Rate, Tilt, Eccentric
Speed and Air Control. We will discuss the controls for each of these variables in
turn. (Please refer to Figure 6.)

1.

FEED CONTROL.

2.

TILT ADJUSTMENT.

3.

VFD AIR ADJUSTEMENT FOR AIR.

4.

VFD ECCENTRIC SPEED.

5.

DUST HOOD PRESSURE GUAGE.

6.

EXHAUST BLAST GATE CONTROL.

7.

START/STOP BUTTON

8.

HIGH END PNEUMATIC GATE

9.

HIGH END GATE 3-WAY SWTICH

FIGURE 6: STONER CONTROLS

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Summary of Contents for Hi-Cap N Series

Page 1: ...Hi Cap N Series Destoners Version 1 0 1 5 23 Oliver Manufacturing Company 27151 Harris Road La Junta CO 81050 888 254 7814 olivermanufacturing com Operations manual ...

Page 2: ...work must be performed in a live or energized electrical panel Always wear proper PPE safety glasses hard hats safety shoes respirator and gloves when inspecting the stoner or performing maintenance Never operate the stoner with the air filters removed Never operate the stoner with the deck removed Never operate the stoner with missing or worn parts Never operate the stoner with worn or damaged de...

Page 3: ...3 1 The Process of Stratification 11 3 2 The Theory in Practice 12 3 3 Guidelines for Use of Stoner 15 IV CONTROL COMPONENTS OF THE STONER 16 4 1 The Deck 16 4 2 The Four Basic Adjustments 17 Feed Rate 18 Tilt 19 Eccentric Speed 19 Air Adjustment 20 4 3 EXHAUST AIR ADJUSTMENT 21 4 4 HIGH END PNEMUATIC GATE CONTROL 22 V START UP AND OPERATION 23 5 1 Initial startup Procedure 23 5 2 Stoner Operation...

Page 4: ...ted Air Flow 35 A 2 3 Inadequate Foundation 35 A 2 4 Belt Slipping 35 A 2 5 Wrong Machine Settings 36 Appendix B The ABB ACS380 VFD 26 B 1 Getting to know the VFD keypad 27 B 2 Programming the VFD from the keypad 30 B 3 VFD parameter list 31 Appendix C Timer manual 26 C 1 Getting to know timer operation 27 C 2 Timer dip switch selection 30 Appendix D Electrical and Dimensional drawings 32 D 1 Hi c...

Page 5: ...ls 17 Figure 7 Stoner console 18 Figure 8 Dusthood Pressure Gauge on the Console 420 Figure 9 Gate Timer Open and Closed on the Cabinet 21 Figure 10 Gate 3 way swtich on the Console 22 Figure 11 Stoner Opeartion Step 1 24 Figure 12 Stoner Opeartion Step 2 24 Figure 13 Stoner Opeartion Step 3 25 Figure 14 Stoner separation patterns 31 Figure 15 New deck vs worn deck 24 Figure 16 VFD keypad overview...

Page 6: ...Page 6 ...

Page 7: ...designed to separate particles of similar size that differ in weight eliminating heavy trash and stones The Stoner should not be used as a cleaning machine to remove dust dirt sticks and other refuse frequently found in harvested crops In all processing situations the best results are obtained from the stoner when the product has been thoroughly pre cleaned and sized using the proper equipment for...

Page 8: ...ng deck If the deck is damaged good separations are impossible Also be careful not to puncture the filter screens located on the sides of the machine If the filter screens are damaged dirt may be sucked into the machine and may plug the deck Immediately after uncrating your Oliver Stoner inspect for shipping damage If the machine is impaired in any way it was caused in transit and a claim should b...

Page 9: ...thority Having Jurisdiction When locating your stoner be sure that you leave adequate clearance to operate the controls and to remove the deck for changing or cleaning Tooperate the controls and provide normal maintenance we recommend a minimum of 4 ft clearance A space approximately equal to the dimensions of the deck is adequate for deck removal from the heavy end Please refer to our layout prin...

Page 10: ...50 5 6 825 93 2 600 700 50 5 6 1000 113 0 Always ensure that all applicable national and local electrical standards are followed during installation For field connections refer to the electrical schematics provided inside of the electrical cabinet When penetrating the electrical cabinet for field wiring the electrician must enter the cabinet from the bottom Failure to do this will result in voidin...

Page 11: ...ns to interfere with intake Supply intake should be properly screened to prevent foreign objects from entering the system Some customers need to bring in clean outside air rather than to draw dusty plant air through the filters installed on the machine The clean air source should have a filter area not less than the area of the deck surface After the stoner is installed and the motor wired so the ...

Page 12: ...y of less than 1 will float and particles with a specific gravity greater than 1 will sink Oliver stoners use air as a standard rather than water Since air is lighter than water the relative difference between particles of differing weights is widened For this reason the stoner is a very sensitive machine and when operated correctly can produce a very precise separation 3 1 The Process of Stratifi...

Page 13: ...ers with heavier layers on the bottom and lighter layers on the top as shown by Figure 2 Separation cannot occur until the material becomes stratified The size of the stratification area will depend on the difficulty of the separation and on the capacity at which you are processing At no time should it exceed 1 3 of the deck surface The more difficult the separation the greater is the area that is...

Page 14: ...ischarge It should be noted that since the stratification process is not instantaneous some of the heavier materials will be carried down the deck toward the discharge end before they can sink to the bottom of the fluidized bed This is normal and acceptable as long as the heavy trash does not flow off the deck with the cleaned product When you are not making a proper separation it is an indication...

Page 15: ...n a film of air While stoners have greater capacities than gravity separators based on square feet of relative deck area there is a limit as to the amount of feed flowing to the deck As the feed is increased the stratifying area is also increased The stratifying area should not occupy more than 1 3 of the entire deck area We have already stressed the need for earlier processing of products before ...

Page 16: ...PARTICLES Unlike the gravity separator a stoner produces a two way separation rather than a continuous grade at discharge Due to this two way separation sizing is not done on a stoner because the accuracy of separation is poor RULE 3 PARTICLES DIFFERING IN SPECIFIC GRAVITIES AND ALSO DIFFERING IN SIZE CANNOT BE EFFICIENTLY SEPARATED An example of this would be the separation of adobe from pinto be...

Page 17: ...nteract false vibrations with a screen or polymer over cover that is the surface on which the separation takes place The highest or uphill end of the deck is the stone discharge and the lower or downhill portion of the deck is the clean product discharge Oliver Stoners have one two or three stone discharge traps depending on the model The Oliver Model 2448 N Stoner has one stone trap The Model 364...

Page 18: ... Tilt Eccentric Speed and Air Control We will discuss the controls for each of these variables in turn Please refer to Figure 6 1 FEED CONTROL 2 TILT ADJUSTMENT 3 VFD AIR ADJUSTEMENT FOR AIR 4 VFD ECCENTRIC SPEED 5 DUST HOOD PRESSURE GUAGE 6 EXHAUST BLAST GATE CONTROL 7 START STOP BUTTON 8 HIGH END PNEUMATIC GATE 9 HIGH END GATE 3 WAY SWTICH FIGURE 6 STONER CONTROLS ...

Page 19: ...and labelled with balloon 1 The external feeder controls the amount fed onto the separating deck You must supply your own feeder control or can be purchased as option from the factory The feed rate whether fast or slow should be uniform and free of surges Surges in the incoming feed will show up in the discharge of the machine as a poor quality separation We suggest the use of surge bins above the...

Page 20: ...ric speed The tilt is adjusted by loosening the two clamping handles 2 and moving the tilt adjustment handle 2 in toward the machine for more tilt and away from the machine for less tilt VFD AIR ADJUSTMENT Air regulation is one of the most important adjustments to be made on a stoner The most common mistake in air regulation is the use of too much air Separation is not made by blowing the light ma...

Page 21: ...despite maximum tilt being used Eccentric speed is adjusted by turning the pressing UP or DOWN arrow on the VFD remote pad 4 located on the machine console 4 3 EXHAUST AIR ADJUSTMENT Integrated dust hood Hi cap N stoner requires proper adjustments of exhaust air for stoner operation and dust control The most common mistake in exhaust air regulation is the use of too much air Separation is not made...

Page 22: ... in appearance All the controls on the stoner serve a purpose and must be balanced with the other controls to obtain optimum separation With this understanding we are now able to advance to making an actual separation 4 4 HIGH END PNEMUATIC GATE CONTROL This gate controls amount heavy particle removal from the deck Typically this gate will be closed and periodically open to let collected heavy fra...

Page 23: ... operated independent of the timer This is three way switch which operates the gate close open and auto Close Open will independently open or close the high gate and Auto will automatically open or close the gate with the timer settings FIGURE 10 GATE 3 WAY SWTICH ON THE CONSOLE ...

Page 24: ...ter and slower Locate the tilt control handle Loosen the clamps and operate the tilt control to increase and decrease the tilt of the deck Remember that tilt and eccentric speed must be balanced against each other to create a smooth uniform bed of material across the deck Check the feeding mechanism to ensure that you can control the feed rate Finally increase and decrease air through the deck wit...

Page 25: ...phill slightly faster than downhill 2 When 1 3 of the deck is covered begin opening the air gate controls As the deck continues to fill open the air gates only enough to maintain a minimum fluidization 3 On many products a zone of light material will form at the lower edge of the bed as the deck fills This is normal and indicates that sufficient air is present If the percentage of heavy material i...

Page 26: ...hes from the heavy end of the deck 5 3 INCREASING CAPACITY The above discussion gives the general procedure for starting and operating an Oliver Stoner After obtaining satisfactory results at low capacity increasing capacity is a relatively simple operation Only after satisfactory results are achieved should this be tried 1 Increasing tilt and eccentric speed Begin by increasing the tilt This will...

Page 27: ... the timer dip switch settings 5 4 IN CASE OF DIFFICULTY TROUBLE SHOOTING Most stoner operators can get acceptable separations after working with the machine for a few minutes However in some cases even experienced operators run into problems that they cannot solve If your stoner is not giving satisfactory results or even if it is but you would like to see better results we suggest you read the fo...

Page 28: ...climb to the high end of the deck Toolittle tilt is present when you cannot float material to the low end of the deck ECCENTRIC SPEED is the rate of oscillation of the table Eccentric action provides the agitation so that the material can be stratified and the reciprocating motion separates the heavier lower layers from the lighter upper layers of material Eccentric motion and tilt must be balance...

Page 29: ... of the machine are designed to screen dirt out of the air before it enters the machine If they become plugged the fans cannot pull enough air through them to provide a proper separation They can be cleaned by removing them from the machine and gently tapping them on the floor A more effective cleaning may be obtained by removing the filters and using compressed air to blow the dirt out 4 Inadequa...

Page 30: ...must be rebuilt Generally the cover should have a rough surface texture and the openings should be as large as possible without allowing material to fall through We make four types of standard decks cloth for small grasses and materials smaller than 1 16 30 mesh wire for seeds the size of alfalfa between 1 16 and 1 8 in size 16 mesh for materials between 1 8 and 1 4 cereal grains and 10 mesh wire ...

Page 31: ...the particle you are processing However for most commodities the overall pattern will generally be similar We suggest an average depth of material of from 1 to 2 inches for material larger than 1 4 inch from 1 2 to 1 inch for material ranging from 1 8 to 1 4 inch in diameter from 1 4 to 1 2 inch for material from 1 16 to 1 8 inch in diameter and less than 1 4 inch for material smaller than 1 16 in...

Page 32: ...ons let us know We will be glad to share our thoughts on the subject with you For the convenience of our customers we maintain a laboratory service where we can process your samples There is no charge and all samples will be returned if requested If you have a sample you would like tested just call us Then we can discuss your problem and determine how much of a sample is needed for testing If you ...

Page 33: ...uct free of both heavy and light trash If you have problems with a small percentage of light trash we suggest you contact us about the use of a gravity separator We manufacture both stoners and gravity separators in a wide range of sizes and capacity ratings We can supply a gravity separator that will be an approximate capacity match for your stoner DUST CONTROL ACCESSORIES Remember Hi cap N stone...

Page 34: ...Page 34 this section intentionally left blank ...

Page 35: ...Page 35 V Appendices Appendix A Maintenance and Basic Troubleshooting ...

Page 36: ...plugged it will be necessary to remove it from the machine and thoroughly clean it A deck that is only partially cleaned will become plugged sooner To check if a deck is clean place a light on a drop cord under the deck If the deck is clean you should be able to see light through every opening of the deck cover Dirty areas will show up as dark spots and should be cleaned more thoroughly Because de...

Page 37: ...ugh it The shaft must be removed to install a new belt For this reason a spare belt is installed around the shaft on all new machines When the original belt wears out merely remove the spare belt from its mountings and slip it in place of the original If the second belt wears out and you lack the time required to install a new belt you can replace it with a link belt However this is a temporary me...

Page 38: ... machine for a few minutes However many operators expect results too soon from their stoners When an adjustment is made wait at least couple of minutes before deciding whether it has made any improvement A certain amount of time is required for the entire deck surface to adjust to the new conditions From conversation with customers over a period of years we have compiled a list of problems most ge...

Page 39: ...nd lock out the power supply Then apply pressure to the back of the belt midway between the two pulleys The belt should deflect approximately 1 2 inch A 2 5 Wrong Machine Settings This is commonly a problem with new inexperienced operators The solution is usually gaining more experience Do not be afraid to adjust the machine Make an adjustment Wait a couple of minutes to determine the effect and d...

Page 40: ... addition we need the model number of the machine When we receive orders for parts we ship as soon as possible after receiving the order Normally we will ship by the fastest cheapest method unless otherwise specified Incomplete or incorrect information when ordering will cause unavoidable delays in shipping If you have a special problem or cannot locate some of the required information please cont...

Page 41: ...Page 41 Appendix B The ABB ACS380 VFD ...

Page 42: ...42 P a g e The ABB ACS380 VFD B 1 Getting to know the VFD Keypad Figure 16 VFD keypad overview ...

Page 43: ...43 P a g e Figure 17 VFD keypad display ...

Page 44: ...44 P a g e Figure 18 VFD keypad status line ...

Page 45: ... in the display above each key You select an option e g operation mode or parameter by scrolling with the up and down arrow keys until the option is highlighted in reverse video and then pressing the relevant soft key With the right soft key you usually enter a mode accept an option or save the changes The left soft key is used to cancel the made changes and return to the previous operation level ...

Page 46: ...46 P a g e When a fault or alarm occurs the panel goes automatically to the Fault mode showing the fault or alarm You can reset it in the Output or Fault mode Figure 19 VFD Faults and Warnings ...

Page 47: ...47 P a g e A 2 Programming the VFD from the Keypad Figure 20 Changing VFD parameters ...

Page 48: ...set by Oliver Manufacturing at the factory all other parameters not shown in this list are to remain the default value as set by the drive manufacturer These changed parameters should not be adjusted unless recommended by an Oliver representative Table 2 Fan and Eccentric VFD parameter list ...

Page 49: ...49 P a g e ...

Page 50: ...50 P a g e Appendix C Timer manual ...

Page 51: ...51 P a g e C 1 Getting to know timer operation ...

Page 52: ...52 P a g e C 2 Timer dip switch selection ...

Page 53: ...53 P a g e Appendix D Electrical and Dimensional drawings ...

Page 54: ...Page 54 D 1 Electrical drawings ...

Page 55: ...55 P a g e ...

Page 56: ...56 P a g e ...

Page 57: ...57 P a g e D 2 DIMENSIONAL LAYOUT DRAWINGS ...

Page 58: ......

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