LB2500 Asphalt Mixing Plant

The Stationary Asphalt Mixing Plant is a new type of product independently developed by our company using modern European technology, combining the advantages of multiple models at home and abroad, and combining the company’s years of production experience. The whole plant has a beautiful appearance, compact structure, reasonable layout, stable performance, and reliable quality.

Features of Stationary Asphalt Mixing Plant

1. Excellent environmental protection and economic performance

The whole machine adopts color board packaging, coupled with the use of a high-efficiency pulse bag dust removal system, which truly realizes a humane and environmentally friendly working environment; the whole plant thermal system and power system adopt scientific optimization design, and the excellent and accurate weighing system is used in fuel consumption. It has the best quality in terms of power and electricity usage, which saves production costs and realizes energy saving and consumption reduction.

2. Modular structure

Each unit has a modular structure, a compact and reasonable layout, and convenient and quick assembly and demolition.

3. Efficient vibrating screen system

The self-synchronizing double-axis inertial vibration exciter is the upper vibration type screening machine, which overcomes the influence of high temperature on the vibration exciter, has a low failure rate, and is convenient for maintenance.

4. Large capacity cold hopper

The large-capacity cold hopper has a wide opening, convenient feeding, no mixing, and a wide outlet at the front and narrow at the back, ensuring the smooth flow of the cold aggregate.

5. Efficient bag dust removal

The high-efficiency pulse back-blown bag filter has high dust removal efficiency. The smoke and dust emission concentration can be controlled within 34.5mg/Nm3. When the moisture content of the cold aggregate is less than 5%, the fuel consumption rate is only 6.5kg/t, and the energy consumption is as low as the International advanced level.

6. Advanced primary cold aggregate supply and drying system

Chain plate type frequency conversion speed control batching machine is selected for the primary cold material distribution, which is durable, accurate, and reliable. The outer skin of the drying drum is insulated with stainless steel, a four-wheel drive, and a unique silencer design for the rear smoke box.

7. Good surface corrosion resistance

The exposed surface of the whole machine is shot blasted, and the paint is beautiful and beautiful, with good anti-corrosion performance and durability.

8. Reliable and stable control system

The perfect combination of leading industrial computers and touch screens with PLC can realize two sets of control systems and are independent of each other. In addition, the supporting key components are completely selected from internationally renowned brands, which effectively guarantees the stability and high reliability of equipment operation.

9. Comprehensive application of multiple patented technologies

The comprehensive application of a number of patented technologies greatly improves the overall performance of the equipment.

Cold aggregate system

The loader shovels sand and gravel materials of different specifications into the corresponding cold storage bin; after the volume of the belt feeder is measured by the frequency converter (the frequency converter parameters are set in advance according to the gradation type, output, and mix ratio), it passes through the aggregate The belt conveyor and the feeding cold material belt conveyor are transported to the drying drum.

Dry heating system:
The drying drum heats the sand and gravel materials to a certain temperature by countercurrent heating (the control system automatically adjusts the flame of the burner). Due to the rotation of the drum, the sand and gravel materials are repeatedly lifted and dropped by the blades in the drum to form a material curtain. The heat exchange effect is enhanced, and with the help of the inclination of the drum, the sand and gravel move forward while heating; after coming out of the drum, together with the coarse filler collected by the gravity dust collector, it is lifted by the hot aggregate elevator and discharged into it to the hot aggregate screening machine.

Dust removal system

The high-temperature dust-containing flue gas discharged from the drying drum first enters the gravity dust collector through the primary flue for preliminary purification, and the collected powder is sent to the inlet of the hot aggregate elevator by the screw conveyor; then the dust-containing flue gas enters the bag type In the dust collector, the purified flue gas is directly discharged into the atmosphere by the induced draft fan. The dust recovered by the bag filter is sent to the recovered powder supply system by the screw conveyor for storage.

Mixing System

The hot aggregate is sieved into five specifications through the screening machine and flows into five hot material storage bins for storage. According to the set ratio, the five types of aggregates are put into the stone measuring bin in batches in the order of first small and then large. At the same time, the hot asphalt from the asphalt supply system and the powder from the powder supply system, Put them into their respective measuring devices according to the set proportion. After the weighing is completed, put it into the mixer according to the preset sequence for forced mixing. The mixed finished material is directly unloaded into the dump truck or can be unloaded into the finished material lifting trolley, and then lifted and unloaded by the hoist to the finished material bin for storage.

Control System

The control system relies on the signals detected by each sensor to monitor important parameters such as material ratio, asphalt content, and mixture temperature in real-time to ensure that the quality of the mixture produced can meet the requirements of users. In the entire process, the electronic control system is also equipped with a chain protection device to protect the equipment from accidental mechanical accidents.