Asphalt Plant Weighing System

The asphalt plant weighing system is the system that precisely measures the materials used in the asphalt plant according to the mix recipe and adds them to the mixer. This system directly affects the quality and durability of the asphalt. The asphalt plant weighing system generally consists of the following components:

Feeding unit: This is the unit where the materials are stored and fed to the plant.
Weighing unit: This is the unit that measures the weight of the materials.
Transfer unit: This is the unit where the measured materials are transferred to the mixer.

Feeding unit This is the unit where the materials are stored and fed to the plant. Aggregates are screened by a screen located in the tower group of the asphalt plant and separated into various sizes. The separated materials are sorted and separated by size in the under-screen silo. Materials from these silos are conveyed to the aggregate weighbridge using a valve system designed to collect the required quantities, where they are weighed through separate gates for each material. Once the required materials are collected, the discharge gates on the scale are opened, and the weighed aggregate is discharged into the mixer. Similarly, filler dust and other powder components captured by the asphalt plant filter system are transported to suitable locations in the under-screen silo by elevators, where they are stored ready for use. The required quantities of filler dust and other powder components are fed to the scales using star feeders and weighed. The weighed powder components are then discharged into the mixer through augers or valves.

Bitumen from the storage tanks located in the Asphalt plant area is brought to the bitumen tank on the weighing floor via pipelines and pumps. The required amount of product is taken to the bitumen weighbridge by pumps, weighed, and discharged into the mixer by suction pumps. Bitumen weighbridges are produced in two categories: pumped discharge or free-flow discharge. They are also classified according to their heating system: electrically heated or hot oil heated. The Weighing unit measures the weight of the materials. The weighing unit is usually constructed using electronic load cells. The weighing unit ensures that the materials are weighed in accordance with the mix recipe. The Asphalt plant weighing system can be operated manually or automatically. In manual systems, the operator manually adjusts the weight of the materials. In automated systems, the weight of the materials is controlled by a computer according to the recipe. The asphalt plant weighing system plays a crucial role in asphalt production. This system ensures the quality and durability of the asphalt. The basic functions of the asphalt plant dosing system are as follows:

Measuring the materials at the correct ratio according to the mix recipe
Providing a smooth and constant feed of materials into the mixer

The asphalt plant dosing system is an important tool for improving quality and efficiency in asphalt production.

One of the most important factors determining quality in modern asphalt production is the accurate weighing of materials and their complete transfer to the mix. Therefore, the Asphalt Plant Weighing System is considered the heart of an asphalt plant. Providing precise measurement of aggregate, bitumen, filler, and additives, this system ensures the correct application of production recipes and ensures a homogeneous asphalt structure. Inaccurate weighing leads to both quality loss and increased costs. For this reason, a professional and calibrated Asphalt Plant Weighing System is crucial for businesses.

What is an Asphalt Plant Weighing System?

The Asphalt Plant Weighing System is a technological structure that enables precise measurement of all materials used in the plant using electronic load cells and automation control units. The system’s purpose is to weigh materials in proportions determined by the operator and transfer them to the production process. Weighing systems generally consist of three main parts:

Aggregate weighing scale
Bitumen weighing scale or flow meter system
Filler weighing unit

These units guarantee measurement accuracy at every stage of the production process.

Advantages of the Asphalt Plant Weighing System

A professional Asphalt Plant Weighing System offers businesses significant advantages:

Prevents material waste with high precision
Provides higher quality and homogeneous asphalt production
Creates energy and cost savings
Maintains recipe accuracy and works fully with automation
Ensures continuous accuracy with calibration
Accelerates production with fast weighing cycles

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Asphalt Plant Weighing System