US7581871B2 Counterflow drum mixer asphalt plant method

US7581871B2 - Counter-flow drum mixer asphalt plant method ...

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to evacuate ...

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Counter-flow drum mixer asphalt plant method for two stage ...

Jun 18, 2007  A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to

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US7357562B2 - Counter-flow drum mixer asphalt plant with ...

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to evacuate ...

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Double Drum Counter Flow Asphalt Plant - Atlas Industries

90-120 tph - counter flow asphalt mix plant. Counter flow asphalt mix plant is manufactured by Atlas Industries in the capacities 40-120 tph. The first drum is for heating and for removal of dust by venturi type wet dust collector. Mixing of bitumen and lime takes place in the second drum.

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US4787938A - Countercurrent drum mixer asphalt plant ...

A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercurrent relation. In a first zone within the cylinder 10, aggregates are heated and dried by heat radiation and a hot gas stream generated at a ...

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Counter Flow Drum Mixers/Dryers Equipment - Tarmac ...

Tarmac Dryers And Drum Mixers Feature: Portable or stationary units 150 to 600 tons per hour Run up to 50% rap (recycled asphalt product) Trunnion or chain drive 1/2″ thick shells Veiling flights are 3/8″ thick and adjustable Tarmac combustion flights keep material from passing through the flame Slinger feed conveyors Single villet rolled drum tires Welded flex plate tire supports – no ...

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US7044630B1 - Counter-flow asphalt plant method - Google ...

A method for operating a counter-flow aggregate dryer for an asphalt plant in which primary aggregate materials are introduced into a first end of a horizontally rotating cylinder and travel to the second, discharge end of the cylinder through drying and combustion zones. Hot gases are generated in the combustion zone to flow in counter-current heat exchange relationship with the aggregate ...

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CFM Series Counterflow Dryer / Drum Mixer - Aesco Madsen

It is in this mixing chamber that the benefits of counterflow technology are truly realized. Conducting the mix process away from the hot gases and burner flame allows the CFM series counterflow drum mixer to eliminate the environmentally harmful hydrocarbon (blue smoke) emissions seen in more traditional plant technology.

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Counter-flow asphalt plant method - Hawkins, Michael R.

Another object of the invention is to provide counter-flow drum mixer or batch plant dryer equipment and method of operation for which the exhaust gas temperatures are substantially lower than in conventional systems (225 F. average vs. 375 F. average in a typical 50% recycle plant) to permit the use of polyester filters in the dust collection ...

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Counter flow asphalt plant Asphalt mixing plant - YouTube

Aug 12, 2014  This is 60-90 tph counter flow asphalt drum mix plant located near Jaipur India. This asphalt mix plant counter flow type is supplied with two bitumen tanks ...

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Counter-flow drum mixer asphalt plant method for two stage ...

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone.Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to evacuate ...

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COUNTER-FLOW DRUM MIXER ASPHALT PLANT METHOD

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to evacuate ...

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drum mix asphalt plant counter flow asphalt plant

Asphalt Drum Mix Plant - Counter flow . In our single-drum counterflow system aggregate and superheated air move in opposite directions. Aggregate enters on the feed-entry end of the drum and travels toward the burner as it's dried. At the burner nose the dried material passes behind an isolation ring where liquid asphalt.

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drum mix asphalt plant counter flow asphalt plant

Home - drum mix asphalt plant counter flow asphalt plant. drum mix asphalt plant counter flow asphalt plant. When we get your inquiries, we will send tailored catalogue, pricelist, delivery, payment terms and other required details to you by email within 24 hours.

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3 ASPHALT MIXTURE PLANT OPERATIONS - in

parallel-flow drum plants, counter flow drum plants, and double barrel drum plants to name a few. In general, however, the majority of plants may be categorized as either a batch plant (Figure 3-1), or a drum mix plant (Figure 3-2) and the information presented in this chapter covers these two types of plants. In the batch-type mixing plant ...

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Parallel-Flow Drum-Mix Plants

Parallel-Flow Drum-Mix Plants This section is concerned with the processing of aggre­ gate and asphalt cement in a parallel-flow drum-mix plant. The methods used to introduce the aggregate into the drum are first reviewed, followed by the operation of the burner system and the three-step heating, drying,

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Counter-flow drum mixer asphalt plant with two stage ...

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to evacuate ...

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11.1 Hot Mix Asphalt Plants - US EPA

asphalt plants in the United States. Of these 3,600 plants, approximately 2,300 are batch plants, 1,000 are parallel flow drum mix plants, and 300 are counterflow drum mix plants. The total 1996 HMA production from batch and drum mix plants is estimated at

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Drum Asphalt Mixing Plant

plant is known as continuous asphalt mix plant. Compared with other kinds of asphalt mixing plant, the difference lies in the mixing modes. The drum mix asphalt plant inte - grates the drying and mixing into the same drum. The asphalt drum mix plant process is simplified. With its fea-tures of simple structure, high intensity, large production

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Asphalt Batch Plant v/s Asphalt Drum Mix Plant Atlas ...

Oct 25, 2014  Counter-flow plants can feature a single drum for drying and mixing or two drums (separate for drying and mixing) or drum for heating and a mixer for mixing. Usually drum plants are smaller than the asphalt batch plant and require less space, less energy and less efforts to run. The components are also less in the drum asphalt plants which make ...

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US Patent for Countercurrent drum mixer asphalt plant ...

A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercurrent relation. In a first zone within the cylinder 10, aggregates are heated and dried by heat radiation and a hot gas stream generated at a ...

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Counter-Flow Asphalt Plant Method - MyScienceWork

A method for operating a counter-flow aggregate dryer for an asphalt plant in which primary aggregate materials are introduced into a first end of a horizontally rotating cylinder and travel to the second, discharge end of the cylinder through drying and combustion zones.

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counter flow drum dryer design for mobile asphalt plant

Our drum mixers are designed to allow the free flow inlet of the RAP product. Rotary Dryer Burners – PRIME ASPHALT PLANT Entry date: 21-04-06 item-No.: 152095914

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Counter-flow drum mixer asphalt plant method for two stage ...

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone.

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Counter-flow drum mixer asphalt plant method for two stage ...

Complete Patent Searching Database and Patent Data Analytics Services.

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Counter-flow drum mixer asphalt plant method for two stage ...

Patent 07581871 - Counter-flow drum mixer asphalt plant method for two stage mixing > Claims. 1. A method for producing asphaltic product from aggregate, RAP, and liquid asphalt, said method comprising the steps of:nintroducing aggregate material interiorly of a first end of an inclined, horizontal rotating drum to flow generally from said ...

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Counter-flow drum mixer asphalt plant with two stage ...

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to evacuate ...

get price

Counter-flow drum mixer asphalt plant with two stage ...

Mar 11, 2003  A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to

get price

US Patent for Counter-flow drum mixer asphalt plant with ...

A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing zone where liquid asphalt is combined with the materials and secondary combustion air flows through the first stage to evacuate ...

get price

drum mix asphalt plant counter flow asphalt plant

Home - drum mix asphalt plant counter flow asphalt plant. drum mix asphalt plant counter flow asphalt plant. When we get your inquiries, we will send tailored catalogue, pricelist, delivery, payment terms and other required details to you by email within 24 hours.

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drum mix asphalt plant counter flow asphalt plant

Asphalt Drum Mix Plant - Counter flow . In our single-drum counterflow system aggregate and superheated air move in opposite directions. Aggregate enters on the feed-entry end of the drum and travels toward the burner as it's dried. At the burner nose the dried material passes behind an isolation ring where liquid asphalt.

get price

building construction tools asphalt drum mixer plant

The Asphalt Drum Mix Plant produces asphalt by heating the aggregate in the drum. Asphalt Mixing Plant Asphalt Mobile Plant Drum Mix Plant. Asphalt mixing plant is a complete set of equipment for mass production of asphalt concrete, which is also called asphalt concrete mixing is necessary machine for the construction of highways, grade roads ...

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batching plant price Counter Flow Asphalt Plant Asphalt ...

Hot-Mix Asphalt Plant Operations. There are three basic types of HMA plants currently in use in the United States: batch, parallel-flow drum-mix, and counter-flow drum-mix. All three types serve the same ultimate purpose, and the asphalt mixture should be essentially similar regardless of the type of plant used to manufacture it.

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All About Asphalt Mixing Plant Kaushik Engineering Works

Drum mix plant: Hot mix asphalt is delivered in a constant procedure. Counter flow plants are of the similar kind. The distinction here isn’t just in the method of creation. Yet in addition the distinctive characteristics of hot mix asphalt that every gear produces. For the creation of hot mix asphalt utilizing the reused material, it is ...

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What is the difference between an asphalt batch plant and ...

Batch Mix Plant Parallel flow Drum Mix Plant (image source - Hot-Mix Asphalt Paving Handbook 2000) Whatever type of HMA plant, the basic operations involved in the HMA production are same. These operations includes 1: Material storage and handling...

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11.1 Hot Mix Asphalt Plants - US EPA

asphalt plants in the United States. Of these 3,600 plants, approximately 2,300 are batch plants, 1,000 are parallel flow drum mix plants, and 300 are counterflow drum mix plants. The total 1996 HMA production from batch and drum mix plants is estimated at

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asphalt drum mixer plant - sbcdrivingschool

Asphalt drum mix plant is one type of asphalt plant that produces hot mix asphalt in a continuous process. Continuous asphalt mixing plant is low on running cost maintenance and high on production. With strong agitation performance and quick installation it is suitable for projects such as highways that require mobile work.

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Hot Mix Asphalt Plants Emission Assessment Report

ASSESSMENT OF HOT MIX ASPHALT EMISSIONS 9 2.1 INDUSTRY OVERVIEW AND PROCESS DESCRIPTION 9 2.1.1 Batch Mix Plants 9 2.1.2 Drum Mix Plants 10 2.1.3 Recycle Processes 10 2.1.4 Emissions and Controls 11 2.2 EMISSION FACTOR DEVELOPMENT FOR AP-42 SECTION 11.1, HOT MIX ASPHALT PLANTS 11 2.2.1 Batch Mix and Drum Mix Dryers 12 2.2.2 Hot Oil Heaters 13 2 ...

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