Polymer Modified Bitumen Plant

What is a polymer modified bitumen plant ?

A polymer modified bitumen plant (PMB) produces more flexible and durable modified bitumen by mixing bitumen with polymers. The produced modified bitumen is stored in bitumen tanks and then used in the asphalt plant to produce polymer-modified hot asphalt. Due to the chemical structure of petroleum, pure bituminous asphalt often fails to provide the desired pavement performance under increased traffic loads and adverse weather conditions. To achieve a more flexible asphalt structure, modified bitumen has become essential for asphalt producers.

MBA manufactures modified bitumen plants (PMB) with capacities of 10-15-20 tons/hour. Depending on customer demand, it is designed as a compact or stationary unit within the chassis. The compact type modified bitumen plant is more advantageous in terms of transportation and installation time.

Features of MBA Polymer Modified Bitumen Plant

The modification mill with high shear capability ensures rapid production of modified bitumen.
It is user-friendly with both automatic and manual operating systems.
Efficient heating is provided by insulated polymer mixing tanks with heated bodies, reducing heat loss.
Agitators that ensure a homogeneous polymer-bitumen mix prevent polymer settling.
SBS is automatically fed into the tanks via the polymer bunker.
Automatic bitumen valves with pneumatic actuators offer full control.
Bitumen filling and modified bitumen discharge pumps have heated bodies.
The software supports multiple languages for ease of use.
The operator works comfortably in an air-conditioned control cabin for the modified bitumen plant.
With its compact design the modified bitumen plant is easily transportable as a single unit.

MBA can manufacture modified bitumen tank, thermal oil boiler and piping along with the polymer modified bitumen plant (PMB) as a turnkey solution.

How to Use Polymer Modified Bitumen Plant ?

Before starting polymer modified bitumen production, the bitumen in the storage tank needs to be heated to a temperature of 170-190°C. The polymer required for producing modified bitumen is loaded into the polymer bunker. After this stage, the MBA polymer modified bitumen plant is ready for production, and the operator can proceed step by step.

Stage 1

The heated bitumen in the bitumen tank is transferred by pump to one of the modified bitumen production tanks. There are two modified bitumen production tanks available, both of which have bitumen weighing capabilities. The operator sets the amount of bitumen to be loaded via the automation system. Once the bitumen preparation tank is filled, the mixer is activated. The SBS loaded into the polymer bunker is transferred to the bitumen preparation tank via a screw conveyor, with the quantity determined by the automation system. In the bitumen preparation tank, the polymer and bitumen are mixed for approximately 20 minutes.

Stage 2

The polymer-modified bitumen mixture is then transferred from the first bitumen tank to the second bitumen tank via the mill using a pump. The purpose here is to ensure thorough mixing of the polymer into the bitumen using the modified bitumen mill. The polymer-modified bitumen mill has a power of approximately 160 kW and performs high-speed shearing. After one pass, a sample of the modified bitumen is taken for testing. If the sample does not meet the specifications, the mixture is passed through the mill a second time to complete the production.

Stage 3

The modified bitumen produced in the plant is pumped into the modified bitumen storage tank. This storage tank is equipped with a mixer to prevent clumping of the modified bitumen. The stored modified bitumen should be mixed for about 10 minutes every hour. For use in the asphalt plant, it should be stored and used at a temperature of 160-190°C.