60 t/h asphalt batch mixing plant: complete structure, core advantages and procurement guide
60 t/h (60TPH) intermittent asphalt mixing plant is the most widely used medium energy hot mix asphalt production equipment in medium and small road engineering. The equipment takes into account multiple advantages such as stable production capacity, flexible operation, moderate investment and low operation and maintenance cost, and is widely suitable for municipal road repair, highway maintenance, county road construction and various small infrastructure paving projects. Whether you are an engineering contractor, project manager or equipment purchaser, a comprehensive understanding of the working principle, complete composition structure, technical advantages and procurement points of the 60TPH asphalt mixing plant can help you select cost-effective and high-performance mixing equipment for your project. This article will comprehensively explain the core content of 60TPH asphalt batch mixing plant, and provide a comprehensive reference for your equipment investment decision.
What is 60TPH asphalt batch mixing plant?
60TPH asphalt batch mixing plant refers to batch asphalt production equipment with rated capacity of 60 tons per hour. Different from continuous asphalt mixing equipment, this machine adopts intermittent batch mixing process, which divides raw material feeding, drying and heating, precise metering, forced mixing and finished product discharging into independent processes to complete batch, so as to ensure accurate mixture ratio, uniform mixing and more stable finished product quality from the root.
For small and medium-sized engineering construction needs, 60TPH asphalt mixing plant perfectly fills the capacity gap between 30-40TPH small mobile equipment and 80-120TPH large industrial mixing plant. The equipment supports rapid switching of various mixture formulas such as ordinary road asphalt, modified asphalt and color asphalt, with strong adaptability to working conditions and stable output of finished products, which can meet the needs of urban road renovation, rural road hardening, parking lot pavement, highway supporting projects and other scenarios. At the same time, with the characteristics of compact structure, lower energy consumption and convenient installation, it has become the mainstream model with high cost performance in the construction machinery market.
60TPH asphalt batch mixing plant core components
A complete set of 60TPH asphalt batch mixing plant consists of seven systems: batching, drying, screening, metering, mixing, dust removal and intelligent control. Each module is precisely matched to realize continuous, stable and high-precision asphalt mixture automatic production. The functions of each core component are detailed as follows:
Cold aggregate batching system
As the initial feeding unit of the whole set of equipment, 4 groups of independent cold bins (single bin volume 4.5 cubic meters) are standard, which can store raw materials such as crushed stone, sand and aggregate of different specifications. The system adopts frequency conversion speed regulation to control the ingredients, and the raw materials are evenly and quantitatively conveyed to the drying drum through the belt conveyor. Equipped with anti-blocking vibration device, it can effectively avoid material accumulation and blanking jamming problems, ensure the continuous and stable supply of raw materials for the whole production line, and lay a solid foundation for subsequent processes.
Drying and heating system
It is composed of rotary drying drum, high efficiency energy-saving burner and temperature detection device. It is the core module of aggregate dehydration and temperature rise. The stable rotation speed of the drying drum can reach 15.4r/min, and the cold aggregate can be heated to 130℃-170℃ (can be flexibly adjusted according to construction needs). The matching diesel burner has high thermal efficiency and low fuel consumption, and the fuel consumption per ton of asphalt mixture produced is only 5.5-7kg, which greatly reduces the long-term production cost of the project and has significant energy-saving advantages.
Hot aggregate screening and storage system
After drying and heating, the aggregate is sent to the vibrating screening machine by the elevator, and the particle size classification is completed through the multi-layer screen, and the unqualified materials with oversized specifications are removed. Equipment equipped with high wear screen, long service life, low replacement frequency, long-term stable operation. The hot aggregates with different particle sizes that pass the screening are stored in the corresponding hot bins for temporary storage, and the materials are reserved for subsequent batch measurement and accurate mixing.
Precision metering system
Accurate measurement is the key to ensure the quality of asphalt mixture. 60TPH asphalt mixing plant is equipped with independent metering modules for aggregate, asphalt and mineral powder. The metering accuracy is industry-leading: aggregate metering error ≤±0.5%, asphalt metering error ≤±0.3%, mineral powder metering error ≤±0.2%. Equipped with high-precision sensors and intelligent automatic calibration system, it can completely eliminate formula deviation and ensure that the finished asphalt mixture fully meets the national road construction quality standard.
Twin horizontal shaft mixing system
Double horizontal shaft forced mixer is the core of the equipment mixing unit, using chromium molybdenum alloy wear resistant blades and lining, durability is very strong, can complete more than 100,000 batches of mixing operations. Three-dimensional mixing mode has no mixing dead angle, and can realize full fusion and uniform mixing of aggregate, asphalt and mineral powder. Synchronous driving power structure output is stable, each batch of finished asphalt mixture texture is uniform, performance is consistent, and pavement quality is guaranteed from the core link.
Asphalt feed heating system
The system consists of asphalt storage tank, constant temperature heating pipeline and high pressure spraying device, which can automatically complete asphalt heating, constant temperature insulation and maintain the optimal flow state of asphalt. Asphalt is sprayed evenly through high-pressure nozzles during mixing, so that asphalt and aggregate are closely bonded and mixture segregation is prevented. The system supports real-time temperature adjustment, which can adapt to the production requirements of different construction environments and modified asphalt with different formulations, and can adapt to a wider range of scenarios.
Environmental protection dust removal system
The equipment is equipped with high-efficiency bag filter, which can collect dust and flue gas generated during drying, screening and stirring in an all-round way. The exhaust gas emission concentration is controlled within 20mg/Nm³, which fully meets international and domestic environmental emission standards. The collected stone powder can be recycled and reused, which not only reduces the waste of raw materials, reduces the construction cost, but also realizes the green construction with low dust and low pollution, which meets the environmental protection control requirements of various places.
Intelligent control system
PLC automatic intelligent control system, support remote monitoring, equipment fault automatic diagnosis function. It can realize one-key start and stop, automatic formula switching, real-time adjustment of production parameters, automatic recording and export of production data. The human-computer interaction interface is simple and intuitive, and the operation threshold is low, which effectively reduces manual operation errors and improves the overall production efficiency. At the same time, it can automatically count production data, which is convenient for project cost accounting and fine construction management.
Working principle of 60TPH asphalt batch mixing plant
60TPH asphalt mixing plant adopts standardized batch production mode, the whole production process is standardized and orderly, and the complete production cycle is divided into six core steps:
Step 1: quantitative feeding of raw materials. Cold aggregates of different specifications are loaded into corresponding cold bins respectively. The frequency conversion control system accurately controls the blanking amount according to the preset mixture formula, and the raw materials are transported quantitatively by belt conveyor.
Step 2: drying dehydration heating. The cold aggregate enters the rotary drying drum. Under the continuous heating of the burner and the turning of the drum, the moisture inside and outside the aggregate is completely removed, and the temperature is raised to the preset temperature for construction.
Third step: aggregate screening classification. The heated high temperature aggregate is sent to the vibrating screen for layered screening, and the screened qualified aggregate is stored in the corresponding hot bin according to the particle size classification for standby.
Step 4: Accurate ingredients measurement. According to the preset asphalt mixture formula, the system automatically weighs hot aggregate, mineral powder and asphalt accurately, and strictly controls the proportion accuracy of each raw material.
Step 5: Forced batch mixing. The measured raw materials are sequentially put into a double-horizontal shaft mixer, and are forcibly stirred for a fixed time to form a high-quality hot-mix asphalt mixture with uniform texture and standard performance.
Step 6: Finished product discharge and dust treatment. Qualified asphalt mixture is discharged from the discharge port and transported to the construction site by asphalt transport vehicle. Dust and flue gas generated in the whole production process are collected and purified by the dust removal system to complete the whole production cycle.
Core features and application advantages
With balanced equipment performance, strong working condition adaptability and high cost performance, 60TPH asphalt batch mixing plant is very competitive among medium capacity mixing equipment. The core advantages are as follows:
Stable batch production, excellent finished product quality
The equipment adopts intermittent mixing process and high-precision metering system, and the ratio of raw materials in each batch is accurate and controllable. The asphalt mixture produced has uniform texture, stable discharge temperature and strong pavement adhesion, which can fully meet the construction quality requirements of municipal roads and highways with high standards.
Lower energy consumption and controllable operating costs
Standard energy-saving burner and optimized thermodynamic cycle structure, greatly reducing fuel and electricity consumption. The fuel consumption of each ton of mixture of the equipment is only 5.5-7kg, and the total installed power is about 157-178kW. The long-term construction energy consumption advantage is outstanding, which effectively reduces the project operating expenses.
Wide range of working conditions, strong versatility
Stirring temperature support 120℃-170℃ wide range adjustable, can adapt to different climates, different construction seasons of the operating environment. It can stably produce ordinary asphalt, modified asphalt and special pavement asphalt, and meet the needs of various diversified pavement projects in one stop.
Green environmental protection, compliance construction worry-free
Equipped with efficient bag dust removal system, realize ultra-low dust emission, noise, exhaust gas indicators are in line with domestic environmental protection standards. The stone powder collected in the production process can be recycled and reused, reducing material waste and environmental pollution, and easily passing environmental protection inspections.
Easy installation, low maintenance costs
The whole machine adopts modular integrated structure, fast disassembly speed, flexible site layout, and supports rapid transition construction. The core wearing parts are made of high-strength wear-resistant alloy material, which has a longer service life. With split operation and maintenance structure, daily maintenance and replacement of accessories are simple and efficient, greatly saving operation and maintenance time and cost.
Intelligent automatic operation, safe and efficient
Relying on automatic PLC control system to realize intelligent unmanned production, with overload, over-temperature, lack of material and other fault automatic alarm and protection mechanism, effectively avoid equipment failure and construction safety hazards, comprehensively improve production stability and operation efficiency.
60TPH asphalt mixing plant application scenario
With the advantages of moderate production capacity, flexible operation and wide material adaptability, 60TPH asphalt batch mixing plant is widely used in all kinds of small and medium-sized pavement construction and maintenance projects. The core application scenarios are as follows:
1. Construction and renovation of municipal roads. It is suitable for the construction, widening and surface renovation of urban trunk roads, branch roads and community roads. It can stably supply high-quality asphalt mixture and meet the quality standards of urban road pavement.
2. Highway and rural road works. It is suitable for county and township road hardening, rural road quality improvement and reconstruction, highway supporting pavement construction and other scenarios. The equipment can be transferred flexibly, and it can be adapted to decentralized construction sites and short-term engineering projects.
3. Infrastructure supporting pavement works. It can meet the pavement requirements of factory roads, parking lots, scenic spots and supporting roads in residential quarters, with low equipment investment and high construction efficiency, and is suitable for various small supporting infrastructure projects.
4. Road maintenance and emergency repair. The equipment occupies a small area and is rapidly deployed. It can be quickly put into operation such as road pit repair, thin layer overlay, emergency road repair, etc., effectively improving road repair efficiency and shortening construction period.
5. Special small-scale pavement engineering. It supports the production of special mixtures such as modified asphalt, waterproof asphalt and colored asphalt, and can meet the construction requirements of municipal landscape roads, anti-skid pavements and other characteristic pavements.
60TPH asphalt mixing plant procurement core precautions
If you want to purchase a high-quality, high-adaptation and cost-effective 60TPH asphalt batch mixing plant, you can not only look at the equipment price, but also need to combine the project working conditions, equipment configuration, environmental protection requirements, after-sales service and other multi-dimensional comprehensive evaluation. The following are the core selection considerations in engineering procurement:
Selection of production capacity requirements for fitting projects
Before procurement, it is necessary to accurately calculate the daily mixing demand of the project and the overall construction cycle. The 60TPH mixing plant is suitable for small and medium-sized road projects with an annual output of 30,000 - 80,000 tons. Reasonable matching of production capacity can effectively avoid idle site and waste of resources caused by overcapacity of equipment, and at the same time eliminate problems such as construction progress lag and construction period delay caused by insufficient production capacity.
Strictly verify core configuration and performance parameters
The core configuration of the equipment directly determines the long-term operation stability. When purchasing, it is necessary to focus on checking the configuration standards of key components such as wear parts of double-horizontal shaft mixer, main burner quality, high-precision metering sensor, bag dust removal system, etc. Priority shall be given to mature models with accurate parameters, stable performance, energy saving and consumption reduction to ensure long-term continuous trouble-free operation of equipment.
Focus on confirming the environmental compliance ability of equipment
At present, the environmental protection control standard of the project is becoming stricter and stricter, which is a rigid index for equipment selection. It is necessary to confirm that the equipment is equipped with ultra-low emission dust removal system, and the dust, exhaust gas and noise emission indicators fully comply with the environmental protection standards of the project location, so as to avoid the operation risks of environmental protection failure and site shutdown rectification from the source.
Consider equipment mobility in combination with construction scenarios
If the project site is scattered and frequent transfer construction is required, modular and semi-mobile 60TPH asphalt mixing plant shall be preferred. This kind of equipment is easy to disassemble, convenient to transport and short in commissioning period, which can greatly save the time and economic cost of equipment transfer, installation and commissioning, and adapt to mobile construction scenarios.
Verification of manufacturer after-sales and spare parts supply capacity
Perfect after-sales service is the guarantee of stable operation of equipment, and it is necessary to select a regular manufacturer with complete qualifications and mature after-sales system. Ensure that equipment installation and commissioning, troubleshooting, daily maintenance can respond quickly, and the manufacturer has sufficient original spare parts reserve to minimize engineering losses caused by equipment failure.
Balance initial investment and long-term operating costs
Equipment procurement should not blindly pursue low prices, low prices and low equipment often have high energy consumption, fast wear and tear, high failure rate and other problems. It is necessary to comprehensively compare the long-term expenses such as equipment purchase cost, fuel and power consumption, replacement frequency of accessories, operation and maintenance cost, etc., and optimize the equipment with high configuration and low loss to improve the overall investment cost performance.
Pay attention to equipment intelligent control configuration intelligent configuration
It can effectively improve the fine management level of construction. It is suggested to give priority to the intelligent control system supporting one-key storage of formula, remote real-time monitoring and automatic statistical export of production data. It can not only reduce manual operation error and labor cost, but also accurately control the mixture quality, which is convenient for project cost accounting and construction management.
Conclusion
60TPH asphalt batch mixing plant is a medium energy asphalt mixing equipment with high maturity and excellent cost performance in the field of construction machinery. With the advantages of stable batch production quality, ultra-low energy consumption, green environmental protection, flexible operation and wide adaptation scenarios, it has become the preferred equipment for small and medium-sized road construction and maintenance projects. Fully mastering its complete set of structural composition, working principle, core advantages and technical parameters is the basis for scientific selection and efficient construction. When purchasing equipment, enterprises shall comprehensively evaluate equipment performance, configuration, environmental compliance and after-sales service in combination with their own project scale, construction environment and long-term operation planning, and select high-quality equipment suitable for project needs. A suitable 60TPH asphalt mixing plant can effectively improve construction efficiency, ensure pavement quality, and create higher economic benefits for engineering projects.
