The Differences Between Continuous & Batch Mix Asphalt Plant

When using an asphalt mixing plant, first of all, it needs to have good stability. If it does not have good stability, then the asphalt mixing plant will not be able to meet the requirements of the project in terms of requirements or mass production. For road construction, the measurement requirements of asphalt concrete are relatively strict and precise. Only qualified asphalt concrete can make the quality of road construction meet the actual requirements. Therefore, the stability of the asphalt mixing plant is very important.
Secondly, the requirements for the asphalt mixing plant when in use are that the equipment should be as simple as possible on the basis of having all the required functions, and the overall operation should be reduced as much as possible. This can save a lot of manpower input during operation and save corresponding costs. Although it is simple, it does not mean that the technological content of the asphalt mixing plant needs to be reduced.
The above are the requirements that the asphalt mixing plant needs to meet when in use, because if each equipment wants its working effect to achieve the expected appearance, the equipment itself needs to have corresponding conditions. It must be a qualified and convenient equipment to ensure the efficiency and quality of the work.

The asphalt mixing plant is constructed according to a certain process, which can not only ensure the construction quality, but also ensure that the asphalt mixing plant is not damaged. Although the construction details are critical, the key skills of the asphalt mixing plant construction must be mastered.
Before the construction of the asphalt mixing plant, the top surface of the asphalt mixing plant construction range should be removed, and the dry and flat site elevation should be kept to meet the design requirements. If the ground surface is too soft, the foundation should be reinforced to prevent the construction machinery from becoming unstable and to ensure that the pile frame is vertical.

Asphalt mixing plant is one of the main equipment for producing asphalt concrete. It can mix asphalt, gravel, cement and other materials together in a certain proportion to obtain the products required for highway construction. In order to ensure its operating effect, the asphalt mixing station also needs to be powered on for trial operation before it is officially put into work.
At the beginning of the test run, first run a single motor, and at the same time check whether the current, steering, insulation and mechanical transmission parts are operating normally. After confirming that each motor and mechanical transmission parts are operating correctly, conduct a joint trial run. During the entire process, it is necessary to conduct patrol inspections of key parts. If any abnormal noise is found, the cause should be identified and eliminated in a timely manner.

The additives in the production process of emulsified asphalt equipment can be divided into accelerators and retarders. In addition, the temperature and viscosity at that time need to be correctly controlled during production. How much do you know about this information? Let’s take a closer look:
The viscosity of asphalt decreases with the increase of temperature during the production of emulsified asphalt equipment. For every 12°C increase, its dynamic viscosity decreases by about one time. During production, the base asphalt should be heated to liquid state before emulsification. In addition, in order to adapt to the emulsification capacity of the colloid mill, the dynamic viscosity of the base asphalt is generally controlled to be about 200cst. The lower the temperature, the higher the viscosity, which increases the burden on the asphalt pump and the colloid mill, making it difficult to emulsify; but on the other hand, in order to prevent the demulsification caused by excessive vaporization and evaporation of water in the finished product during the production of emulsified asphalt, it is impossible to heat the base asphalt temperature too high. Generally, the finished product temperature at the outlet of the colloid mill should be controlled to be less than 85°C.
These are the main ways to control the temperature and viscosity of emulsified asphalt equipment during production. We must operate reasonably according to the instructions so that its performance can be fully demonstrated. If you have any questions, please feel free to consult us in time. We will continue to organize more information about emulsified asphalt equipment for you.

In our daily lives and work, many equipment malfunctions not due to inherent quality issues, but rather due to improper use or lack of proper maintenance. Maintenance is a crucial aspect often overlooked. Sometimes, proper maintenance can at least double the lifespan of equipment. Below, we introduce some maintenance techniques for asphalt mixing plants, hoping to be helpful to our workers!
1. Promptly Clean Up Residue and Waste After Operation
Often, after using an asphalt mixing plant, workers simply turn off the power and turn it back on for the next use. This practice poses a significant risk: residue and waste will accumulate inside after operation, eventually damaging the equipment.
2. Pay Attention to Lubrication of Tracks and Rolling Shafts
Sometimes, asphalt mixing plants will make a “creaking” sound during operation. This indicates that the tracks and rolling shafts need lubrication. Regularly add lubricant to ensure smoother operation.
3. Regularly Replace Wear-Prone Parts
All industrial equipment has wear-prone parts. Regular replacement is essential to prevent damage to the entire system. Workers can easily check these parts while cleaning up residue; it’s a quick and convenient process that extends the lifespan of the asphalt mixing plant.
These may seem like small things, but they are crucial for asphalt mixing plants. Treat the equipment like you would your own child to ensure it operates smoothly and efficiently.
For asphalt mixing plants, asphalt mixing equipment, asphalt hot recycling, stabilized soil mixing plants, and asphalt mixing stations, choose Sinoroader.

Asphalt damage avoidance mechanism in asphalt mixing plant
1. Asphalt operators should undergo physical examination. Anyone suffering from conjunctivitis, skin disease or allergic reaction to asphalt should not engage in asphalt work.
2. Asphalt operators must apply protective ointment on exposed parts of their skin, and a first aid kit should be provided on the construction site.
3. The factory uniforms and protective equipment of asphalt operators are stored in a centralized manner and are prohibited from being worn home or entering collective dormitories.
4. The transfer of lumpy asphalt should usually be carried out at night and on cloudy days, especially during hot seasons. Small machinery should be used for loading and unloading, and it should not be lifted and transported directly by hand.

1. Environmental Requirements
Asphalt mixing plant construction must consider environmental factors to minimize environmental pollution. According to relevant laws and regulations, asphalt mixing plants must undergo site selection assessments to avoid construction in sensitive areas such as residential areas and water source protection zones. Furthermore, asphalt mixing plants must implement effective environmental protection measures, such as installing dust removal equipment and recycling and treating exhaust gases, to minimize environmental impact.
2. Technical Requirements
Asphalt mixing plant construction must strictly adhere to relevant national technical standards and specifications. These primarily cover production capacity, raw material selection, equipment requirements, and process flow. Construction companies must select and install equipment in accordance with national standards to ensure the production capacity and quality of the asphalt mixing plant.
3. Safety Requirements
Asphalt mixing plant construction requires safety considerations to ensure safe operation. Construction companies must implement scientific designs based on process flow and equipment requirements to minimize the possibility of accidents. Professional maintenance engineers must be deployed during operation to ensure safe equipment operation. Construction companies must also conduct necessary safety training to enhance employee safety awareness. IV. Asphalt Mixing Plant Operation and Maintenance
Asphalt mixing plant operations must strictly adhere to relevant national standards and regulations to ensure production quality and safety. Furthermore, a professional maintenance team is required to regularly inspect and maintain the equipment to ensure proper operation. Damaged or malfunctioning equipment must be promptly repaired or replaced to avoid disrupting production.
[Conclusion]
Asphalt mixing plants, as crucial supporting equipment for construction sites, have extremely high construction requirements and standards. Environmental, technical, and safety considerations must be taken into account during construction to ensure the plant’s production capacity and quality. Furthermore, the operation and maintenance of asphalt mixing plants must adhere to national standards and regulations to ensure proper equipment operation and production quality.

Road construction machinery is a large range, so let’s talk about one of it, which is the asphalt mixing plant. It is mainly used to produce asphalt, so it is very important among road construction machinery and equipment. An important part, if the quality of the finished product is not good, it will greatly affect the quality of the road. Therefore, below, the editor will use the form of question and answer to guide you to continue learning.

In the daily operation of asphalt mixing plants, cleaning the asphalt mixers is essential for ensuring efficient equipment operation and extending their service life. Due to the viscosity and high-temperature characteristics of asphalt, asphalt and impurities easily remain in the mixer during use. If not cleaned promptly, this can lead to reduced mixing efficiency, increased burden on the heating system, and even affect the quality of the mixture.
Asphalt mixers are typically cleaned using two methods: dry cleaning and wet cleaning. Dry cleaning removes clumps of asphalt from the inside of the mixer manually or mechanically, suitable for lightly contaminated situations. Wet cleaning requires the use of specific cleaning agents, dissolving residual asphalt through spraying or soaking, followed by rinsing with a high-pressure water gun. Wet cleaning is more effective, but careful selection of cleaning agents and wastewater treatment are necessary to avoid environmental pollution.
During the cleaning process, it is also important to protect critical components of the mixer, such as the mixing blades, heating pipes, and sensors. Regular cleaning not only restores the mixer’s performance but also reduces equipment failure rates and lowers maintenance costs. Therefore, rationally scheduling cleaning cycles and selecting appropriate cleaning methods are crucial and indispensable tasks in the daily management of asphalt mixing plants.

The main principle of asphalt hot recycling technology is to process and recycle the aged and damaged materials of the asphalt pavement to be repaired. In this process, the old material is transformed into new material, thus achieving the repair of asphalt pavement materials. The advantage of this technology is that it enables the recycling of existing materials.
With the rapid development of my country’s highway industry, the proportion of asphalt concrete pavement is increasing. In recent years, the development of the transportation industry has led to a significant increase in large, overloaded, and overweight vehicles. Asphalt concrete pavements in most parts of my country have developed numerous road defects such as cracks, ruts, loosening, subsidence, and potholes, increasing the difficulty of highway maintenance and raising maintenance costs year by year, while also compromising pedestrian safety. To reduce costs and minimize environmental pollution from used asphalt, the widespread adoption of asphalt hot recycling technology will yield significant economic benefits in preventing pollution, protecting the environment, reducing stone mining, and saving money.
In recent years, the continuous development of road engineering in my country and the increase in transportation volume have accelerated the aging and damage of roads. Therefore, to ensure the necessity of people’s travel and production transportation, we must address these road problems in a timely manner. Simply replacing the road surface is detrimental to energy conservation. Therefore, with the joint efforts of relevant departments, we have explored a new method for repairing old asphalt pavements: hot asphalt recycling technology. The main working principle of hot asphalt recycling is to utilize existing asphalt materials available on the road, fill and modify them according to their intended use, and then combine these two materials to complete the reconstruction of the old pavement’s asphalt structure.
The advantage of hot asphalt recycling technology is that it achieves environmental protection and resource conservation during the reconstruction process. This is also an important manifestation of meeting the requirements of today’s road industry development.

Effective maintenance of the drying drum of the asphalt mixing plant can extend its service life and reduce the cost of use. Let’s take a look at how to maintain it reasonably.
1. The drying drum should be stopped when the aggregate is not running in the asphalt mixing equipment. After the work is over every day, the equipment should be operated to discharge the aggregate into the dryer. After closing the combustion chamber, the combustion chamber should be idle for about 30 minutes to cool down to reduce the impact or allow the machine to run automatically.
2. Install the drying cylinder fixing ring on the roller synchronously. Check the environment in the patrol ring regularly. Whether the roller is adjusted, the straight roller will automatically move to the conveying end, and then the bias will be adjusted to the correct position.
3. If the roller table is in contact with only one of the two thrust rollers, the gap sheet can be filled under the support roller until it is simultaneously subjected to the full width of the support ring. The specified nutritional state should be maintained by the thrust wheel, but it is used to compensate for the desire not to express.
4. If the drying drum is equipped with a drive device, a certain amount of power should be added in small amounts.

The site selection of the asphalt mixing station should follow three principles. Let’s take a look:
1. When selecting the site for the asphalt mixing station in the early stage of construction, the construction party should pay attention to the line direction of the construction site, because the line direction of the construction site will directly affect the quality of the mixed asphalt. Asphalt is an important material used for road and engineering construction. If the quality is poor, it will inevitably have a serious impact on the quality and safety of the entire project. Therefore, when selecting the site, it must be considered in many aspects, and meet the on-site requirements, and confirm the location of the mixing station according to the drawings.
2. Secondly, it is necessary to have a full understanding and grasp of the basic elements of the asphalt mixing station construction, such as whether water and electricity can be supplied normally, or whether the size of the land is sufficient to build an asphalt mixing station.
3. Since the use of asphalt mixing stations belongs to mechanized construction, there will inevitably be dust, noise and other pollution problems during the operation. It can be seen that when selecting the site, it must be kept as far away as possible from residential areas, schools or farms to avoid a greater impact on the surrounding environment.

Asphalt mixing plant is one of the main equipment for producing asphalt concrete. It can mix asphalt, gravel, cement and other materials together in a certain proportion to obtain the products required for highway construction. In order to ensure its operating effect, the asphalt mixer plant also needs to be powered on for trial operation before it is officially put into work.
At the beginning of the test run, first run a single motor, and at the same time check whether the current, steering, insulation and mechanical transmission parts are operating normally. After confirming that each motor and mechanical transmission parts are operating correctly, conduct a joint trial run. During the entire process, it is necessary to conduct patrol inspections of key parts. If any abnormal noise is found, the cause should be identified and eliminated in a timely manner.

Asphalt mixing stations and equipment must implement secondary leakage protection measures. They can only be used after being plugged in and operated through the circuit breaker before use. During the trial operation, it is necessary to verify that the rotational speed of the mixing drum will be inappropriate.

The drying cylinder is a cylindrical device in asphalt concrete mixing equipment specifically designed for heating and drying aggregates. Proper use and maintenance of the drying cylinder can maximize its performance, extend its service life, and reduce operating costs. Below are the specific operating methods.
1. Emphasize Routine Inspections
The asphalt mixing equipment drying cylinder has been tested and inspected before leaving the factory, but it will be subjected to bumps and vibrations during transportation to the construction site. A comprehensive inspection should be performed before use: check if the bolts are tightened; if the key pins are reliably driven in; if the drive unit is adjusted according to the manufacturer’s instructions; if the pipe connections are correct and the pipe joints are safe and reliable; if the entire machine is thoroughly lubricated; start the motor and check if the machine parts can rotate smoothly in the correct direction; if the pressure gauge is working properly and the safety valve is adjusted to the correct pressure; if the burner ignition mechanism is working properly and the valves are open.
2. Correct Operating Methods
After starting the machine, it is recommended to operate the equipment manually at the beginning. After reaching the specified production capacity and unloading temperature, then switch to automatic control mode. Aggregates should be dried and have a consistent moisture content to maintain a constant temperature as they flow through the drying drum. If the aggregates supplied to the drying drum change frequently, and the moisture content of each batch varies, the burners should be adjusted regularly to compensate for these variations.
Aggregates directly from crushed stone have an almost constant moisture content, while aggregates from open stockpiles have a higher moisture content, and the moisture content varies greatly between different stockpiles. Therefore, it is best to source aggregates from the same source.

Safety is the key point for any piece of equipment, and asphalt mixers are of course no exception. What I want to share with you is the knowledge in this area, that is, the safe operation specifications of asphalt mixers. You might as well pay attention to it.
In order to prevent the asphalt mixer from moving during work, the equipment should be placed in a flat position as much as possible, and at the same time, use square wood to pad the front and rear axles so that the tires are elevated. At the same time, the asphalt mixer must be provided with secondary leakage protection, and it can only be started after the inspection, trial operation and other aspects are qualified.

What should I do when the reversing valve in the asphalt mixing plant fails? The editor has a trick:
1. The reversing valve cannot be reversed or the reversing action is slow, which is generally caused by poor lubrication, stuck or damaged springs, oil or impurities stuck in the sliding parts. In this regard, you should first check whether the oil mist is working normally; whether the viscosity of the lubricating oil is appropriate. If necessary, the lubricating oil should be replaced, the sliding part of the reversing valve should be cleaned, or the spring and reversing valve should be replaced.

1.During the operation of asphalt mixing station equipment, in addition to ensuring that the asphalt mixing station equipment is in good condition, it should also be equipped with a mineral moisture content detector and a finished material tester, and the relevant data should be frequently tested for the operator to adjust the operation in time, so as to keep the equipment in good condition.
2. In addition to affecting production capacity, the moisture content of mineral materials is also the main factor that determines fuel consumption. Additional material sheds should be added.
3. Before operation, all working parts and devices of the asphalt mixing station equipment should be fully checked to see if they are intact and normal. If there is a problem, it must be properly handled before operation, and it is forbidden to operate with illness.

The plug valve is a rotary valve in the shape of a closure or plunger. After rotating 90 degrees, the channel opening on the valve plug is the same as or separated from the channel opening on the valve body to complete opening or closing. It is widely used in oilfield excavation, transportation and refining equipment, and such valves are also needed in asphalt mixing plants.
The valve plug of the plug valve in the asphalt mixing plant can be cylindrical or conical. In the cylindrical valve plug, the channel is generally rectangular; in the conical valve plug, the channel is trapezoidal. These shapes make the structure of the plug valve light and very suitable for blocking and connecting media and diversion.

The drying and heating system of the asphalt mixing plant can be regarded as an important part of the whole, so in actual work, it treats the material in a countercurrent heating manner, thereby achieving full dehydration of the cold aggregate, and heating it to a certain temperature, thereby providing the necessary conditions for the normal and continuous operation of the asphalt mixing plant.
During the entire heating process of the asphalt mixing plant, the main purpose is to make the performance of the mixture more in line with the requirements of use, and to make the finished material have good paving performance. Under normal circumstances, the heating temperature of the aggregate is about 160℃-180℃.

Asphalt mixing plants, what role? Asphalt mixing plants, also known as asphalt concrete production equipment, is a special facility for mixing, heating, dust removal and other process treatments for raw materials such as sand, mineral powder, asphalt, etc., to produce asphalt concrete for road construction. As an indispensable role in road construction, the responsibility of the asphalt mixing plant is not only to complete the production of asphalt concrete, but also to provide solid guarantee for road construction.

The development prospects of asphalt mixing plants are very good, and the product competition on the market is also very fierce. When the equipment is used, uneven wear of the supporting wheels and wheel rails often occurs, and sometimes there are some abnormal noises and edge gnawing. The main reason is that after the asphalt mixing station has been working for a period of time, the drying cylinder is exposed to high temperature and friction occurs between the supporting wheel and the wheel rail.
Under the action of drying materials in an asphalt mixing station, the equipment will vibrate violently, which will directly lead to improper adjustment of the gap between the wheel rail and the supporting wheel, or mutual interference between the two. The position is skewed, so the operator needs to add grease to the surface contact positions of the supporting wheel and the calibrating wheel rail after every day’s work.

Oscillating screen. It can screen the heated aggregate according to the design. It requires fully enclosed, double oscillating motor replacement (replacing one substance for another (mostly the strong one takes the place of the weak)) eccentric shaft oscillation, each The layer screen is easy to install quickly. The service life of the drying roller and the power part is not less than 6000h. The roller can fully use heat, the material curtain flows evenly, and the inclination is required to be adjustable.

Due to its complexity and importance, asphalt mixing plants are more critical in road construction. Modern asphalt mixing stations have five key systems. Do you know what they are?
1. Mixing system of asphalt mixing plant
Mixing equipment is one of the key systems, why? Usually, the productivity of the mixing equipment has a great impact on the next step of construction efficiency. Most asphalt mixing plants use twin-shaft forced mixing. Since the drying drum and burner of the mixing equipment have strong overload capabilities, and in most cases, the moisture content of the mineral materials is less than 5%, this improves the productivity of the mixing equipment. provide conditions. The mixing blades of the mixer have an adjustable assembly angle and are driven by dual mixing shafts and dual motors.

Asphalt mixing equipment is equipment used to produce asphalt concrete in large quantities. Because this equipment is affected by various factors during the production process, some problems will inevitably occur after a period of use. Sinoroader Group The editor of the asphalt mixing equipment company of China Machinery Co., Ltd. will introduce to you the methods of rescuing damaged parts in asphalt mixing equipment.
Asphalt mixing equipment encounters different problems, and the solutions are also different. For example, one of the common problems of asphalt mixing equipment is that parts are worn out and damaged. The solution that needs to be done at this time is to start from the production of parts. Just start improving.

During the asphalt mixing production process, dust pollution generated by overflow bins has always been a difficult point in environmental protection management. Traditional dust removal equipment often causes filter bag clogging and reduced efficiency due to the viscosity of asphalt fume. The “99% high dust removal rate + anti-adhesion filter bag” solution effectively solves this industry pain point by optimizing filter material and cleaning technology. This article will introduce its core technical features, selection points and maintenance methods in detail to help mixing stations achieve stable and standard emissions.
1. Industry emission standards and common problems
Environmental protection requirements The particle emission concentration must be ≤20mg/m3 (GB 4915 standard) The asphalt smoke emission concentration must be ≤40mg/m3
Some key areas implement stricter standards (such as ≤10mg/m3)
Pain points of traditional dust removal Asphalt dust adheres to the filter bag, making it difficult to clean the dust The wind resistance increases after the filter bag is compacted, and the energy consumption soars High-temperature flue gas causes the filter bag to deform and break
Key challenges It is necessary to deal with particulate matter and asphalt flue gas at the same time Adapt to intermittent high-concentration dust impact Ensure long-term operation stability

Highways basically use asphalt materials, and asphalt mixing plants can be used to produce a variety of asphalt mixtures. So what are the mixing methods of asphalt mixing plants?
According to the mixing method, it can be divided into: continuous drum type and intermittent forced type. Continuous drum type, that is, the production is produced by continuous and uninterrupted mixing method, and the heating and drying of aggregates and the mixing of mixtures are carried out continuously in the same drum.
Forced intermittent type, that is, the heating and drying of aggregates and the mixing of mixtures are forced to be carried out periodically. The equipment mixes one pot at a time, and each mixing takes 45 to 60 seconds. The output depends on the equipment model.

People pay more and more attention to urban construction, and the use of asphalt is increasing. The application rate of asphalt mixing station is naturally growing rapidly.
Asphalt mixing station will encounter some faults more or less during use. The most common ones are uneven wear of the supporting wheel and wheel rail. Sometimes there will be some abnormal noise and gnawing. The main reason for this is that after the asphalt mixing station has been working for a period of time, the internal drying cylinder will be subjected to high temperature, and then friction will occur between the supporting wheel and wheel rail.
The above situation will also be accompanied by severe shaking, because the asphalt mixing station will directly cause the gap between the wheel rail and the supporting wheel to be improperly adjusted under the action of the drying material, or the mutual position of the two will be skewed. When encountering this situation, the user should add grease to the surface contact position of the supporting wheel and the wheel rail after daily operation.
In addition, the staff also need to pay attention to and timely adjust the tightness of the fixing nut while adding grease, and then effectively adjust the spacing between the supporting wheel and the wheel rail, so that the asphalt mixing station can work smoothly, all contact points can be evenly stressed, and there will be no shaking.

Now on the construction site, including in some engineering construction, one of the equipment used is asphalt mixing plant. It can be said that it can be used in many ranges and fields, and it can provide certain help for my country’s infrastructure construction. Of course, in the process of use, it is necessary to do a good job in many aspects, so that the use of mixing plant can be safer and more worry-free.
1. Maintain standardized operating procedures
In fact, it is not only in the use of asphalt mixing plant, but also in the use of other equipment. It should be done well. It can be said that this mixing plant will also have certain dangers. If there is any carelessness, it may also cause great losses. Therefore, at this time, it is still necessary to pay attention to the correct specifications and follow the process step by step. Only in this way can it be used safely and other use problems can be effectively avoided.
2. Adjust the reasonable mixing ratio
In the application of asphalt mixing plant, the most important and core step is the mixing. The mixing ratio of raw materials should be within a reasonable range and completed according to actual needs. Do not add or reduce raw materials at will according to your own wishes. Such operation is not standardized. In addition, after making a good ratio, you should also pay attention to safety protection measures during operation.
Asphalt mixing plant still plays an important role. If you want to make the use of the mixing plant safer and more worry-free, you should pay more attention when using it and have a certain understanding of these precautions. Only in this way can you ensure that there will be no other problems in use and ensure the safety of the mixing plant.