Concrete Mixing Plant
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Construction Waste Resourceful Treatment Line
China LBRN Series Counterflow Integral Asphalt Mixing Plant - Leading Suppliers & Factory for Efficient Recycling
Product Parameters
| Model | LBRN3020 | LBRN4030 | ||
|---|---|---|---|---|
| Original rated productivity (t/h) | 240 | 320 | ||
| Regeneration rated productivity (t/h) | 160 | 240 | ||
| Rated mixing capacity (kg/batch) | 5000 | 6500 | ||
| Max Productivity (t/h) | 360 | 468 | ||
| Dosing accuracy (static) | Aggregate (%) | ±0.2 | ±0.2 | |
| Powder (%) | ±0.1 | ±0.1 | ||
| Asphalt (%) | ±0.1 | ±0.1 | ||
| Oil & gravel ratio (%) | ±0.3 | ±0.3 | ||
| Installed power (kW) | 1001 | 1250 | ||
| Fuel consumption (heavy oil) kg/t (standard condition) | 6 | 6 | ||
| Gas consumption (natural gas) m³/T (standard condition) | 7 | 7 | ||
| Standard floor space (m) | 47x38 | 51x40 | ||
| Dust removal area (m²) | 1250 | 1820 | ||
| Dust discharge concentration (mg/Nm³) | ≤20 | ≤20 | ||
| Blackness of emitted flue gas | Greenman Levell | Greenman Levell | ||
| Noise in control room | ≤70dB | ≤70dB | ||
Product Characteristics
Adopting counter flow heating method results in higher heat exchange rate, lower exhaust gas temperature, and lower energy consumption. The design structure of large diameter and long drum allows the recycled material to be gently heated inside the drum, ensuring the discharge temperature while reducing the degree of asphalt aging. Special flexible feeding blades and self-cleaning chains are installed inside the drum, which can effectively reduce the adhesion of the drum wall and blades, and enhance the self-cleaning ability of the drum.
Multi point safety detection + linkage control, fast air door closing protection device + automatic fire shut-off function.
The main building is designed with fully sealed negative pressure, without dust overflow. The regenerated flue gas adopts secondary combustion, meeting environmental emission requirements.
Stainless steel plates are pasted inside the regeneration storage silo and regeneration dosing hopper, which has good anti sticking effect.
The hot air stove is equipped with a specially designed ceramic fiber layer, which is light weight, has a low heat transfer coefficient, and is easy to maintain. By introducing low-temperature clean exhaust gas and mixing it with the hot gas flow of the burner, the temperature of the hot gas flow can be effectively controlled. Multiple temperature dosingment points are installed on the furnace body, and the mixing air volume is automatically controlled.
The mixing tank is placed on the side of the main regeneration building, using a large capacity mixing pot, flexible drive, and strong power. The dual mixing arm layout and spiral blade arrangement make the mixing efficiency higher. The discharge door adopts a rotating structure design, with fast discharge speed.
Frequently Asked Questions
What are the main productivity differences between the LBRN3020 and LBRN4030 models?
The LBRN3020 features an original rated productivity of 240 t/h, regeneration rated productivity of 160 t/h, and a maximum productivity of 360 t/h. In comparison, the larger LBRN4030 model offers an original rated productivity of 320 t/h, regeneration rated productivity of 240 t/h, and a maximum productivity of 468 t/h.
How does the heating design optimize energy efficiency and protect the asphalt?
The system utilizes a counter-flow heating method that ensures higher heat exchange rates and lower exhaust gas temperatures. The large diameter and long drum design gently heat the recycled materials, maintaining the target discharge temperature while reducing asphalt aging. Additionally, self-cleaning chains and flexible feeding blades prevent material adhesion.
What safety mechanisms are built into the equipment?
Safety is ensured through multi-point safety detection and linkage control systems. This includes a fast-closing air door protection device and an automatic fire shut-off function to prevent operational hazards.
How does this plant control dust emissions and environmental impact?
The main building operates under a fully sealed negative pressure design to prevent dust overflow, keeping dust discharge concentration under ≤20 mg/Nm³. Furthermore, the regenerated flue gas undergoes secondary combustion to meet strict environmental emission requirements.
What is the dosing accuracy for aggregates, powder, and asphalt?
The static dosing accuracy is highly precise across both models: Aggregate dosing accuracy is within ±0.2%, Powder is within ±0.1%, Asphalt is within ±0.1%, and the overall oil & gravel ratio is within ±0.3%.
How does the design prevent materials from sticking to the storage silo and hopper?
To prevent material build-up and sticking, high-quality stainless steel plates are pasted inside both the regeneration storage silo and the regeneration dosing hopper, ensuring smooth material flow.
INTRODUCTIOM TO ORIGINALFUNCTIOM MODULES
Single silo volume is 15m³, articulated structure gives convenience for transportation.
Small size material silo adopts inner vibrating structure, with big amplitude, ensuring smooth discharge.
Belt conveyor feeding adopts frequency converting + door opening extent control , ensuring a stable primary grading.
Equipped with material lacking alarm device.
Patented blade technology, the material curtain is more uniform and has better heat absorption effect.
Material containing blade feeding technology, the discharge temperature is more uniform.
Large production capacity.Over-production capacity reaches 15%.
Axial flow low-pressure atomization burner is with dual frequency conversion technology to control the air oil ratio, and the fuel consumption per ton of finished product is 6kg (under standard conditions).
Directly driven by a direct reduction motor, with strong power and high efficiency.
The burner has a wide adjustment range and can adaptto various complex working conditions.
Three stage atomizing technology, fuel is atomized into micrometer level, with fully combustion.
High power pre heating device,stable fuel temperature.
Remote fault diagnosis function,timely service, and ensures production reliability.
Intelligent axial flow low-pressure atomization burner adopts dual frequency conversion adjustment technology with automatically adjustable air and oil distribution, ensuring a reasonable air oil ratio and sufficient combustion. The fuel consumption under rated working conditions is only 6kg/t (finished material).
Plate chain elevator, whose chain is not easy to stretch and is stable and reliable in use.
Deceleration motor direct drive with anti reverse device.
The elevator chute is equipped with a wear-resistant plate structure to improve wear resistance.
Dual-vibration motor direct drive,strong vibration effect,to achieve a maintenance free period of approximate 2000h.
Large screening area and high screening efficiency.
The screen mesh changing device adopts a side bolt method which is convenient for quick replacement.
The shell of the vibrating screen is wrapped with insulation rock wool for insulation,noise reduction, environmental protection and energy conservation.
Hot aggregate silo is divided into the upper & lower silo, both adopt rock wool for insulation.
Equipped with a continuous material level detection device, giving convenience for visually observing the material level of various ingredients.
The silo door adopts a maintenance free structural design, large & small doors to achieve a secondary coarse & fine weighing structure, ensuring aggregate dosing accuracy.
The sand silo is equipped with a temperature detection device.
Aggregate scale, asphalt scale, and filler scale are all measured using a 3-point compression dosing module.
The aggregate scale adopts a coarse and fine scale structure with large and small gates, ensuring a dosing accuracy of 0.3%.
The asphalt scale adopts a frequency conversion pump+secondary dosing method to ensure a dosing accuracy of 0.2%, and the dynamic secondary tracking dosing technology ensures an accuracy of 0.3% for the oil & gravel ratio.
The filler scale adopts spiral conveying, pneumatic butterfly valve control, and the “fly material” control program is used to ensure dosing accuracy of 0.2%.
Aggregate scale, asphalt scale, and filler scale are all measured using a 3-point compression dosing module.
The aggregate scale adopts a coarse and fine scale structure with large and small gates, ensuring a dosing accuracy of 0.3%.
The asphalt scale adopts a frequency conversion pump+secondary dosing method to ensure a dosing accuracy of 0.2%, and the dynamic secondary tracking dosing technology ensures an accuracy of 0.3% for the oil & gravel ratio.
The filler scale adopts spiral conveying, pneumatic butterfly valve control, and the “fly material” control program is used to ensure dosing accuracy of 0.2%.
The mixer has a large capacity and adopts power redundancy design, with sufficient power and strong power.
Driven by a direct reduction motor it has strong stability.
Full blade spiral stirring cloud technology, fast mixture cycling speed and strong kneading ability, to achieve the effect of rapid blending.
The blades and lining plates are made of nickel chromium alloy material, with a service life of no less than100000 batches.
Adopting primary gravity dust collector and a secondary atmospheric reverse blowing bag dust collector. Emission concentration <20mg/Nm3.
High-power fan ensures a sufficient air volume, which is controlled by frequency conversion to save energy and reduce noise.
The flue gas pipeline is equipped with a temperature measurement device and has a high and ow temperature alarm function.
Equipped with 2 monitors and 2industrial control computers, when one machine malfunctions another can be used to ensure production stability.
The operation interface is intuitive and clear and key currents and parameters are displayed during internship.
The electrical parts adopt famous international brands, to ensure the reliability.
The control program maintains functions of linkage control, safety interlock, power outage protection.
Asphalt dosing has a secondary dynamic tracking dosing function; The program has “f lying material” control and automatic dosing function.
With functions of online remote diagnosis, to ensure the timely service.