Modular Mobile and Stationary Asphalt Plants by WRT Equipment (Canada)

Modular mobile and stationary asphalt plants from WRT Equipment Ltd. - Canada

WRT Equipment Ltd. is a Canadian developer and producer of parallel (continuous) flow and counterflow drum-mix type, mobile and stationary asphalt plants. It is the main equipment supplier to the aggregate, mining and asphalt industries, as well as a supplier of asphalt plants to the US Army.

WRT Equipment Ltd. was founded in 1968 in Saskatoon, Saskatchewan and by 1978, the company developed a product line and began providing solutions to the road building industry. Today, WRT Equipment Ltd. is a manufacturer of high quality products and components for the aggregate, asphalt and mining industries.

WRT is committed to developing working relationships with customers, providing solutions to help their business succeed and reach production goals. WRT’s focus on providing solutions and quality-built equipment providing a long service life, blended with excellent service, is WRTs foundation for success.

Main advantages of the WRT plants

Mobility

Initial startup of the WRT plant with configurations and supervised installation, takes no more than 2-3 days, with additional training of on-site personnel.

Modularity (interchangeability)

The plants uses a design based on individual modules, allowing retrofitting the plant with additional (optional) components, when needed. For example, WRT’s cold mix plant, with production capacity of 7-30 TPH, can be retrofitted with additional modules, allowing it to produce also warm and hot asphalt mixes, with increased capacity of 45 TPH.

Economy

  • Fuel consumption is one of the lowest, thanks to the continuous production flow technology (6.43 liters per 1 ton of hot/warm asphalt mix, 1.0 liter per ton of cold asphalt mix), since both heating and mixing virtually  occur all at once – the material mixing zone is located in the 3rd portion of the drum mixer. Consequently, the heat, dispersed in the drum mixer does not release into the atmosphere and continues to heat the mix. The fuel consumption of batch plants, in comparison, is within the range of 11 – 13 liters per 1 ton of asphalt mix, which surpasses the fuel consumption of WRT plants by 71 – 102 %.
  • Energy consumption in these plants is also among the lowest. For example, the energy consumption of WRT’s 60 TPH plant – is only 150 kW/hr. Batch plants from other manufacturers stay within the range of 230 - 260 kW/hr, which surpasses the energy consumption of WRT plants by 53 -73%.
  • Reliability: The plant contains a minimal quantity of high-wear components, which dramatically decreases the costs of purchasing replacement parts and allows full-scale plant operation during the peak season, without having to halt production for repairs and/or part replacement.
  • The Drum-Mix technology: Thanks to its unique drum-mixer/heater, the material mixing time is 40 seconds, as opposed to batch-type plants where the mixing time is only 25 seconds. This enables the production of SMA while maintaining the same production capacity.

Asphalt mix quality

All hoppers can be optionally fitted with a single-deck screening system for removal of oversized material. The plant is fitted with an innovative, accurate weigh batching system, allowing batching of aggregate materials with accuracy of ± 1.0%, bitumen ± 0.5% and mineral filler ± 2-3% while maintaining continuous asphalt mix discharge. An additional advantage is that mixing takes place within an inert environment without access to oxygen, which eliminates bitumen oxidation.

In the end, you are getting a: MOBILE, MODULAR PLANT WITH THE LOWEST PRODUCED ASPHALT MIX COST AND SUPERIOR QUALITY!

ECONOMICAL. RELIABLE. COMPACT.

The WRT 60, 110 and 160 tons per hour asphalt plants produce high quality cold, warm and hot asphalt mixes, while minimizing consumables and production-related costs, compared to other mobile or stationary plants, which makes these plants an ideal choice for new businesses and emerging markets. The entire WRT plant – including the drying/mixing drum, wetwash, cold feed bin and surge system – can travel on a single trailer. The series comes with many options and can be customized to meet your specific needs.

FEATURES
  • Produces 60 to 160 tons per hour.
  • Allows for easy start-up, installation and maintenance.
  • Has a simple plant design that requires just one plant operator and one loader operator.
  • Has a high operating efficiency that ensures reduced fuel costs and low cost-per-ton production.
  • Operates on multiple fuels and pre-specified electricity.
  • Is compact, allowing for lower cost standard freight shipping worldwide.

The aggregate heating can be performed using 2 types of fuel sources for the burner: fuel oil (diesel) and/or gas (natural gas), depending on the customer requirements (a combination diesel/natural gas burner is available). The complete portable plant package includes a mineral filler silo and either 2 or 4 cold-feed bins, facilitating the loading of four aggregate fractions (depending on local requirements for warm or hot mix asphalt production).

 

60 TPH

110 TPH

160 TPH

1, 2 or 4 cold feed bins, struck capacity (heaped capacity) 12.2 tons (15.5 tons)
Inlet (slinger) feed conveyor width 24"
Drum mixer
diameter 54"
length 24'
diameter 62"
length 26'
diameter 72"
length 28'

Burner output (BTU/hr)

Fuel oil pump - fuel consumption, L/hr (L/tonne asphalt mix)

8176 kWh (27.9 million)

386 (6.43)

11810 kWh (40.3 million)

707,8 (6.43)

14448 kWh (49.3 million)

1029 (6.43)

Venturi scrubber
diameter 60"
length 8'
diameter 68"
length 10'
diameter 72"
length 12'
Drag conveyor with batcher for truck loading, capacity 1500 lbs 2200 lbs 2600 lbs
Plant control system Computer
Burner control system With flame control
Digital process blending computer Digital, automatic

* The mobile asphalt plants produce asphalt mixes with the following temperatures at discharge: cold asphalt mixes at 50-60 °С, warm asphalt mixes at 125 °С and hot asphalt mixes at 150-160 °С.

Presenting the world's first cold mix plant!

This portable (mobile), modular continuous-flow (Drum-Mix) plant for production of high quality cold asphalt mixes with the aggregate heating/mixing temperature of 47-68 °C, has been specifically engineered at the request of Cantat Associates Inc. with the purpose of providing a highly efficient and economical solution, requiring minimal energy and fuel consumption, which will allow you to establish your own cold mix asphalt production with minimal capital investment. The entire CMP cold mix plant, including the drum mixer/heater, aggregate hopper (fraction 5-10 mm), discharge conveyor, AC/bitumen feeding and metering system and other required and optional components, can travel on a single trailer.

This modular WRT CMP plant offers additional/optional components and modules and can be fully adapted to satisfy your current or future production needs, both in produced capacity (tons per hour) and in the types of mixes that you wish to produce - by adding several optional modules to an existing plant, you will also be able to produce warm and hot mix asphalt.

Features:
  • Various ranges of production capacity: from 7 to 30 tons per hour, from 12 to 45 TPH (by upgrading to a higher burner capacity), and from 70 to 100 TPH.
  • Extremely low fuel consumption - only 1 liter/ton of cold asphalt mix!
  • Allows for easy start-up, installation and maintenance.
  • Has a simple plant design that requires just one plant operator and one loader operator.
  • Has a high operating efficiency that ensures reduced fuel and energy costs and low cost-per-ton production.
  • Operates on multiple fuel types.
  • Compact, allowing for lower cost standard freight shipping worldwide in a single sea container.
  • The aggregate heating can be performed using 2 types of fuel sources for the burner: fuel oil (diesel) and/or gas (natural gas), depending on the customer requirements (a combination diesel/natural gas burner is available). Mazut can also be used.

The plant can be either mobile with a single axle, or stationary for production indoors.

We offer 2 types of base plant configurations:
  1. Manual control of raw material feed (aggregate and AC/bitumen).
  2. Automatic control and metering of raw material feed (aggregate and AC/bitumen). This base configuration must be selected if the customer is planning a future upgrade to facilitate warm/hot mix production.

 

  1. Manual Control 2. Automated Control
Aggregate hopper, capacity
11.1 ton struck capacity
(11.6 ton heaped capacity)
Inside hopper dimensions: 2.74 m long, 2.12 m wide
6 ton struck capacity
(6.5 ton heaped capacity)
Inside hopper dimensions: 2.74 m long, 1.68 m wide
Aggregate feed conveyor
Screw-type, with variable frequency drive. Feeds directly into the drum mixer/heater.

Inclined belt feeder, with variable frequency drive. Feeds directly into the drum mixer/heater.

Fitted with electronic belt scale for precise weighing of the aggregate material (weighing accuracy 0.5-1%).

Drum Mixer/Heater
Diameter 1.22 m
Length 6.10 m

Burner capacity

Fuel pump - fuel consumption, L/hr (L/ton cold asphalt mix)

732 kWh (2.5 million BTU/h)

18.75 (1.25)

AC pumping unit

Manual Control

Fitted with a tachometer for customer monitoring of actual pumping speed.

Automated Control

Fitted with a tachometer for customer monitoring of actual pumping speed.

Discharge conveyor

Belt or slat type (with batcher). Mounted at 35° for loading into trucks, big bags or onto a conveyor, feeding into a bagging machine.

Aggregate feed control Manual Automated
Burner control Automated, with temperature controller
Blending control system Manual Automated
Portability/mobility (optional) Single Axle spring ride suspension with 11R22.5 tires, air brakes, kingpin, mudflaps, and travel lights. Includes three sets of adjustable jack legs plus telescoping drop legs under the front of the bin.
Plant drawing

Shipping in a single HC 40' container

 

 

Additional / optional:
  • Electric vibrator for cold feed hopper.
  • Combination burner - fuel oil (diesel) and gas (natural gas) with gas manifold.
  • Heated enclosure for asphalt pump skid - maintains asphalt pump system temperature during shutdown periods.
  • 1025 kWh (3.5 million BTU/h) for increased cold mix asphalt production capacity (up to 45 TPH).
Retrofitting with additional modules for warm and hot mix asphalt production

At any point in time, the plant can be retrofitted with additional modules, allowing the customer to produce cold, warm and hot asphalt mixes at the increased capacity of (up to) 45 TPH.

Supervised installation and plant start-up

A qualified WRT engineer will be provided for installation supervision, plant start-up and training of the local personnel.

Warranty

1 year from plant start-up.

 

 

WRT Asphalt Plants

 

 

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