Modular Tower Dryers

 

Modular Tower Dryers

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The GSI Modular Tower Dryer Series uses modular construction to improve overall fit, dependability and speed of installation. Building on site, often referred to as “Stick Built” has been the standard method o f construction for the larger tower dryers that the GSI Group manufactures. However, with Modular Tower Dryer comes the option to factory assemble a tower dryer in sections, then ship the dryer to the site for final assembly. This leads to several improvements, including:

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Assembly at GSI’s state of the art manufacturing plant means labor time on site is reduced and labor efficiency can be maximized.

The use of specially built jigs ensures that each module is exactly right, ready to fasten to the other modules with a minimum of adjustment or work.

Shipping in modules means fewer part backorders due to limited availability or damage to parts in transit.

On-site assembly can be done quickly with a crane with almost all work occurring close to the ground.

The modular design allows for a standard adjustable unload auger that extends past the outside edge of the dryer with a clearance of 8″ to 42”, with the option to direct discharge at the center of the dryer with 24″ of clearance.

Safety and operational devices are pre-installed on each module. Wire and conduit are ready to uncoil and wire to the main control boxes reducing time and chance of error.

Control boxes, though remote install capable, are mounted on the base module ready to accept the wiring from the other modules.

Controls are pre-powered and all module wiring and components pre-tested to assure correct operation and improved dependability at startup.

Modular construction makes relocating the dryer easier.

603    Download Modular Tower Dryer Animation

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Adjustable Cooling Floor
GSI Modular Tower Dryers have a unique and patented pending feature called the Adjustable Cooling Floor. This floor allows two major improvements to the dryers operation.

In the past, Tower dryers were designed for a 67/33 split with its traditional Dry and Cool ability, or the 80/20 split with its ability to achieve greater capacities in grain over 25% or operate in partial cooling mode. It is now possible to have both with the GSI Modular Dryer adjustable cooling feature. This feature involves 8 hinged doors that can change the split from approximately 67/33 to 80/20 and back again in a matter of minutes. Each door can be locked in either position by individual control handles easily reached from the service area in the cooling section of the dryer.

If the harvest year starts at 30%, the modular dryer can operate in the minimum cooling position delivering dried and cooled grain within 10 degrees of the ambient temperature. For grain nearing 20%, the modular dryer doors can be adjusted to the maximum cooling position for optimum grain drying and cooling results. Used in combination with adequate cooling air in cooling bins, the modular dryer doors can be adjusted to the minimum cooling position to take advantage of additional capacity. Only the GSI Modular Tower Dryer allows this simple method for controlling the amount of cooling that is to be applied.

In addition, the Modular Tower Dryer features a self cleaning design. Specially designed divider floors allow any chaff or fines that would otherwise accumulate in the heat chamber to drop into the cooling chamber. The Adjustable Cooling Floor prevents particulate build up in the heat plenum of the dryer in the minimum or maximum cooling positions.

 

Blower and Burner
Modular Tower Dryers are designed with the mid-sized to large farm in mind. Capacities range from 800 to 1,690 BPH at 5 point removal. All heat from the grain cooling process is recycled and the long retention times result in very efficient dryer operation.

In-Line Blower
Efficient, quiet, adjustable pitch blowers deliver high volumes of air at low horsepower on all models.

Octagon Burner
TM-1012 and smaller models use a fuel efficient in-line octagon burner to provide even continuous heat.

Maxon NP-LE-AL Burner
For TM-1015 only, a Maxon fuel efficient, low nox in-line burner with engineered profiling provides even, continuous heat. An aluminum extrusion reduces burner maintenance.

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Patented, All Stainless Steel, Grain Inverters
Inverters promote more even drying, higher test weights, and help reduce operating costs.

While the older grain exchangers move grain from the inside of the grain column to the outside of the column in 6” columns, the patented GSI Grain Inverters put a new twist on this process.

GSI’s Grain Inverters move all grain, except the outer two inches, within the column to eliminate over-dried grain and to maximize drying efficiency and grain quality. These patented Grain Inverters place the warmest grain from the inside of the column next to the wettest grain at the outside of the column. The wet grain at the outer wall is dried by the captured heat which would have otherwise escaped the dryer.

This process maintains optimal grain temperature, thus maximizing grain quality while using less fuel and significantly reducing operating costs. A convenient clean-out door also provides easy access for quick maintenance.

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KERNEL TEMPERATURE
Under 100° = Seed
100° to 120° = Human Food Grade – Full Nutrition and Taste
120° to 140° = Animal Food Grade – Full Nutrition
140° to 160° = Moderate Damage and Test Weight Loss Starts
160° and above = Severe Damage (Physical Breakage and Severe Test Weight Loss)

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Inner Roof
Heavy galvanized inner roof and support provides over 260 bushels of wet holding in the garner. The garner is totally sealed to retain particulate matter.

Outside Platforms
Platforms, ladders and cages are standard on all models and provide access to the outside of the dryer.

Access Doors and Hatches
All areas of the dryer are accessible through doors and floor hatches for easy cleaning and maintenance.

Metering Drive
The SCR variable speed DC motor and the single maintenance free Cyclo gearbox located in the cooling chamber provides simple, trouble free operation of the dryer’s metering system.

Sweep Discharge
Field proven (patented) Accu-trol Metering System is self cleaning and provides positive grain flow.

Heat Plenum Chamber
The heat plenum chamber is entirely surrounded by a 12.75″ grain column. All heated air must pass through the grain column resulting in total use of heated air. Stainless steel, smooth sidewall construction with .078″ and .0625″ perforation diameter helps retain particulate matter.

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Vision Dryer Controls
The GSI Vision dryer control system features a wide array of settings that offers unparalleled options and control. Boasting a 10.4″ TFT color touch screen with easy-to-use controls, the Vision can be remote-mounted, via a simple seven wire harness, up to 1000 feet away from the dryer.

The Vision system features a low voltage safety circuit and a safety disconnect on every dryer. Each safety is monitored individually and its status displayed on-screen. With no moving parts – timers, time delays, thermostats, etc. – the Vision system is less prone to wear-and-tear that leads to costly repairs and downtime. Plenum and grain temperatures can be modified on-screen. You can also change from High/Low to On/Off fire mode which allows plenum operation down to 5 degrees above ambient with a simple software switch.  MORE

 

Specifications

MODULAR TOWER DRYER SERIES    

Model

TM-1008

TM-1010

TM-1012

TM-1015

Blower Size

43″ Axial

43″ Axial

43″ Axial

48″ Axial

Blower RPM

1775

1775

1775

1775

Blower HP

40

50

60

75

Metering HP / Unload HP

1 / 3

1 / 3

1 / 3

1 / 3

Drying Cfm

38,000

45,000

52,000

66,000

Cooling Cfm

19,500

22,500

26,000

33,000

Burner Capacity (MBTU)

8,200,000

9,700,000

11,200,000

14,300,000

Average Heat Use (MBTU)1

5,100,000

6,100,000

7,000,000

8,900,000

Grain Column

12.75″

12.75″

12.75″

12.75″

Tower Diameter2

10’7″

10’7″

10’7″

10’7″

Overall Height3

42’1″

48’11″

55’9″

62’7″

Wet Holding (BU.)

260

260

260

260

Heat Holding (BU.) – Min. Cool

552

726

900

1,074

Cool Holding (BU.) – Min. Cool

144

144

187

187

Heat Holding (BU.) – Max. Cool

450

624

798

972

Cool Holding (BU.) – Max. Cool

246

246

289

289

Unload Area Holding

93

93

50

50

Dryer Holding (BU.)

1,049

1,223

1,397

1,571

Dryer Wt (lbs.)

17,900

19,200

21,700

23,000

Outside Catwalks

1

3

3

3

BPH (Set in Min. Cool)4 5 (20% – 15%)

900

1,125

1,350

1,690

BPH (Set in Min. Cool)4 5 (25% – 15%)

542

670

810

1,010

BPH (Set in Max. Cool)4 (20% – 15%)

800

1,000

1,200

1,500

BPH (Set in Max. Cool)4 (25% – 15%)

480

600

720

900

1At 50 degrees ambiant temperature.

2Dimensions exclude outside catwalks. Diameter is 15’-7” with catwalks.

3Optional vertical fill pipe height not included.

4Capacities listed are wet bushels/tonnes, for mature #2 yellow shelled dent corn at listed moisture content and are estimates based on drying principles, field results and computer simulation. Variance may occur due to grain’s physiological factors (kernel size, chemical composition, variety, maturity), excessive fines, adverse weather conditions, etc.

5Capacities with cooling floor set in the lower minimum cool position and assumes utilization of cooling in bin (dryeration).

Discharge Height – Adjustable up to 42″ with standard unload auger and 24″ at center discharge with standard legs. 2’ leg extensions are optional.

All models available in natural gas or liquid propane. Liquid propane pricing includes the price on an internal vaporizer and high pressure regulator.

All models available in 3 phase 230 or 460 volts

Vision Controls for Tower Dryers

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The GSI Vision dryer control system features a wide array of settings that offers unparalleled options and control. Boasting a 10.4″ TFT color touch screen with easy-to-use controls, the Vision can be remote-mounted, via a simple seven wire harness, up to 1000 feet away from the dryer.

Because safety and dependability are paramount for all GSI products, the Vision system features a low voltage safety circuit and a safety disconnect on every dryer. Each safety is monitored individually and its status displayed on-screen.

With no moving parts – timers, time delays, thermostats, etc. – the Vision system is less prone to wear-and-tear that leads to costly repairs and downtime.

Plenum and grain temperatures can be modified on-screen. You can also change from High/Low to On/Off fire mode which allows plenum operation down to 5 degrees above ambient with a simple software switch.

The Vision also puts help at your fingertips when you need it most. Owner’s Manuals are available on-demand and on-screen at the control box.

GSI Vision allows users to track the dryer’s history. All shut downs are logged with time and date information. This data can be saved to a flash memory card (via USB) for use on a home computer.

613   Download Touch Screen Simulator (right click and Save Target As…)

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Moisture Control
Every GSI Vision dryer is equipped with three different styles of moisture control. Users select the mode that best fits their needs in a particular situation.

1. Temperature Based 2 Speed with optional 5 Speed Mode: This temperature based control uses grain temperature to determine the final moisture content. As grain moisture increases or decreases from the desired moisture set point, the metering rolls speed up or slow down an amount pre-determined by the user in order for the dryer to bring the moisture level back to the desired setting. The optional 5 Speed Mode includes automatic speed averaging. When moisture changes significantly, all 5 speeds will change accordingly to bring the operation back into synch with the output moisture.

2. Moisture Based Infinite Speed: This is a moisture-based system that extracts data from three different points in the dryer: the moisture of the incoming grain, the temperature of the grain in the middle of the dryer, and the grain moisture upon exiting the dryer. All three measurements are factored to determine final moisture. Simply enter the desired moisture set point for finished grain and the Vision’s moisture control will speed up or slow down the metering rolls to maintain moisture at the desired setting. This setting makes very slow and calculated adjustments to the grain and is most effective when the moisture of the incoming grain does not vary much and is within a narrow range, i.e. one or two points.

3. Moisture Based 5 Speed: This moisture control method makes very quick meter roll changes and uses only the rear (exiting grain) sensor for adjustments. This setting works best when the moisture of the incoming grain varies quite a bit and has a wider degree of variance, i.e. three or more points.

 

Electrical Control Features
Exclusive MET (nationally recognized testing lab) approved controls. Built to UL 508a specifications: Nationally recognized (US & Canada) CSA electrical compliant.

IEC Branch Breakers: IEC controls are higher quality, rated for more cycles, and meet domestic and international electric codes. All dryers have branch breakers for each motor.

IEC Motor Overloads: IEC overloads allow a wide range of adjustment to accommodate variances in incoming voltage.

Auxiliary Auger IEC Contactors/Overloads: Load and unload auxiliary motor branch circuits are standard. If load and unload HP are specified at time of order, GSI will install properly sized breaker, contactor, and overload for customer’s application.

Entrelec Terminals: Color-coded Entrelec terminals are used for all computer control circuits connections, making for easy installation, diagnosis and service.

Safety Disconnect: For safely disconnecting power from main panel for servicing dryer controls. Also provides an easy connection point for incoming electric supply.

Work Light and Shutdown Indicator: The light on the outside of the dryer doubles as a shutdown indicator.

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Optional WatchDog Software
GSI’s optional WatchDog software program allows remote monitoring of dryer functions such as moisture, temperature and dryer status from a web accessable computer. Web based for greater accessibility, the Watchdog keeps you advised from the comfort and convenience of your home, office, or personal digital assistant (PDA).  MORE

 

 

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