Analysis of the application advantages of PLC in asphalt mixing plants

Many people think that since both asphalt mixing plants and asphalt mixing plants are equipment for producing asphalt, there should be no difference between them, even if there is, it is only in appearance and volume. However, asphalt mixing plants and asphalt mixing plants are different in even their basic structure and function.
First, let me introduce the basic structure of an asphalt mixing plant, which includes five major components: material supply system, metering system, mixing system, and electrical control system. In comparison, the structure of an asphalt mixing plant is simpler, without so many components, so its operation and maintenance will be simpler.

Asphalt mixing plants play a big role in industry. Before talking about asphalt mixing plants, let’s first understand asphalt. Asphalt is a dark brown, high-viscosity organic liquid composed of hydrocarbons and non-metallic substances of different molecular weights. The surface is black and soluble in carbon disulfide. It is a waterproof, moisture-proof and anti-corrosion organic gelling material. When it comes to asphalt, it can be mainly divided into three types: coal tar asphalt, petroleum asphalt and natural asphalt: among them, coal tar asphalt is a by-product of coking. Petroleum asphalt is the residue after crude oil distillation. Natural asphalt is stored underground, and some form mineral layers or accumulate on the surface of the earth’s crust.

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.

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.

Regardless of the industry, if you want to have a promising future, you cannot ignore the concept of environmental protection. This is also true for our asphalt mixing equipment industry. Asphalt concrete mixing plants are large-scale road construction material production equipment and are an indispensable part of road construction and maintenance, accounting for a significant proportion of investment in road construction and maintenance. Although their production scope is limited to the construction site, due to their high emission density and emission standards being inferior to other engineering machinery products, the environmental pollution they cause cannot be ignored. How to reduce energy consumption and emission levels? This is not only a real problem facing our industry, but also a problem that asphalt mixing equipment manufacturers must consider.

The drive unit is one of the important components of the asphalt mixing plant, so whether it can be reliably operated must be highly valued to avoid adverse effects on the entire asphalt mixing plant. To ensure that the drive unit in the asphalt mixing plant is indeed complete and reliable, the following maintenance measures are essential.
The first thing to pay attention to is the universal rotating part of the drive unit of the asphalt mixing plant. This part has always been a fault-prone part. In order to reduce the occurrence of faults, grease should be added on time, and the wear should be checked frequently, and repaired and replaced in time. Users should also prepare the universal shaft assembly to avoid affecting the working process of the entire asphalt mixer.

Installation in Highway Construction
01 Asphalt Mixing Plants in Highway Construction
With economic prosperity, highway construction in my country has made significant progress. Quality requirements for highway construction are becoming increasingly stringent, and mechanized construction has become an industry trend. This not only reduces labor intensity but also significantly shortens the construction cycle, thus showcasing the modernization of highway construction. In the construction of highway pavements, mixing, paving, and compaction are the three core stages, with the mixing stage being crucial for ensuring construction quality. Asphalt concrete mixing equipment, as a key factor in this stage, has a decisive impact on the progress and quality of the project. This equipment integrates mechanical, electrical, and automation technologies and is an indispensable and important link in highway construction.
02 Site Selection and Layout Before Installation
In the highway construction process, the installation of the asphalt plant is a crucial step. It involves not only the selection of the equipment site but also a reasonable layout plan. Correct installation location and layout can ensure the production efficiency and quality of asphalt concrete, thereby affecting the progress and quality of the entire highway project. Therefore, the installation of the asphalt plant must be carefully considered and planned before construction.

At present, the assembly and installation technology of large-scale asphalt concrete mixing equipment in high-grade highway construction is gradually improving. In order to improve work efficiency, it is necessary to analyze the pretreatment agent for the selection and matching of large-scale mixing equipment and auxiliary equipment, and clarify the installation and commissioning of asphalt stations. With the continuous change of highway construction methods, it is necessary to adopt production equipment according to the requirements of the development of the times. Intermittent asphalt mixing equipment is a widely used road construction equipment with the characteristics of simple operation and high work efficiency. Relevant staff are required to master the installation, construction and management methods of mixing equipment.

The country’s environmental protection requirements for road machinery construction products are becoming more and more stringent. my country’s asphalt mixers are mainly used for highway construction and maintenance, so the development of environmentally friendly products has become a top priority.
Using ergonomic design, improving the intelligence of operation, reducing noise and vibration, and paying attention to the appearance design requirements are higher. Unlike other construction machinery, most users are highway departments. The most important feature of these users is maturity, and they are familiar with domestic and foreign production and product technology strength. Foreign brands and a few domestic brands have been “deeply rooted in the hearts of the people” and have formed a brand effect. The brand competition among these companies is also quite fierce, especially the limitations of the scope of use and the similarity of technology, which makes companies only rely on product reliability and cost-effectiveness to compete.
Due to the cruelty of the market, small companies that are at a disadvantage in terms of scale, cost, technology, quality, and sales will no longer have room for survival, and some companies have been holding on to the local market will gradually disappear under the pressure of big brands. Unlike conventional products, it requires high professionalism to use, and users are generally more mature and have strong recognition capabilities. Therefore, even small private enterprises with so-called “institutional and cost advantages” are gradually shrinking their living space, and the trend of being eliminated is already obvious.

Asphalt mixing plants are now widely used on construction sites and in various engineering projects. They are applied in many areas and contribute to my country’s infrastructure development. However, several aspects need to be considered during use to ensure safer and more worry-free operation.
1. Maintain Standard Operating Procedures
This applies not only to asphalt mixing plants but also to other equipment. Mixing plants inherently carry certain risks, and any negligence can lead to significant losses. Therefore, it is crucial to operate according to correct procedures, following each step carefully. This ensures safe operation and effectively avoids other problems.
2. Adjust the Mixing Ratio Appropriately
The most important and core step in the application of an asphalt mixing plant is the mixing process. The mixing ratio of raw materials is crucial and must be kept within a reasonable range. Mixing should be completed according to actual needs; arbitrarily adding or reducing raw materials based on personal preference is not advisable, as this is considered non-standard operation. Furthermore, after ensuring proper mixing ratios, safety precautions must be taken during operation.
Asphalt mixing plants still play a vital role. To ensure safer and more worry-free operation of the mixing plant, it is essential to pay close attention to these precautions and understand them. Only in this way can other problems be prevented during operation, guaranteeing the safety of the mixing plant.

Judging from the current situation of domestic highway construction, asphalt mixing stations will also achieve great development for a long time to come. This is also a result of rapid economic development. However, we have found that more and more quality problems occur when constructing asphalt pavements in modern times. Therefore, we have to put forward more stringent requirements for the quality of asphalt.

With the changes in society and the transformation of the economy, real estate and construction are developing rapidly. When building and constructing houses, most of them use some equipment, such as mixing plants. The asphalt mixing plants produced by our company have a high level of mechanization and high production efficiency.
What is an asphalt mixing plant? It is a combined device used for centralized mixing of concrete, also known as a concrete prefabrication site.
With the development of municipal construction, the use of centralized mixing and the provision of commercial mixing plants have great advantages, so it has developed rapidly and created conditions for promoting concrete pumping construction and realizing the joint operation of mixing, conveying and pouring machinery. It is mainly composed of five major systems, including a mixing host, a material weighing system, a material conveying system, a material storage system and a control system, as well as other ancillary facilities. However, there are some faults in normal times. What are the specific ones in the gas source failure?

Asphalt mixing plant is a relatively important complete set of equipment in people’s lives. There are many components of this equipment, such as grading machine, vibrating screen, belt feeder, powder conveyor, elevator and other parts. Plug valve is one of them, so what is the specific role of plug valve in asphalt mixing plant? This article will give a brief introduction.
The plug valve is first of all a closure or plunger-shaped rotary valve. Generally, it is necessary to rotate 90 degrees to make the channel opening on the valve plug the same as that on the valve body, or to split it to play the role of opening or closing. The shape of the plug valve in the asphalt mixing plant is generally cylindrical or conical.

Asphalt mixing plants are highly professional equipment with complex systems. It is inevitable that some failures will occur during use. So, what are the common hardware failures of asphalt mixing plants? Do you know?
(I) Because its system is relatively complex, when different components have problems, the problems caused may be different. If during the operation, it is found that the material addition of each silo is inaccurate, this problem may be due to the failure of the sensor of the asphalt mixing plant. At this time, the machine should be stopped for inspection and replaced with a new sensor if necessary. It may also be caused by the jamming of the scale bar. At this time, foreign objects should be removed in time.

Asphalt mixing plants bring a lot of convenience. You should understand what asphalt is. Asphalt is a very viscous liquid with a black surface that dissolves carbon disulfide. They generally exist as asphalt and smoke tar. Asphalt appeared early in social life.

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 HMA-B series forced asphalt mixing plant can produce reliable quality asphalt in various proportions. The product technology is mature, the operation is stable, the specifications are complete, the efficiency is high, the output is large, and the finished asphalt quality is good. It is suitable for various sizes and This type of road construction project has more obvious advantages in larger-scale road construction projects and high-grade highway construction projects.

Asphalt is commonly used in our modern urban life, especially in the process of urban highway construction. As an important road surface paving material, the demand for its use is relatively high. Only by using better relevant material performance characteristics can the overall effect be well helped.
Asphalt mixing plants are equipment products that need to be involved in the production and use of such products. With its own excellent performance, it has been better expanded in the promotion of the existing market use scope. The coordination of external use factors is also a key part, and the relationship between various factors must be handled well.

The asphalt mixing plant is a complete set of equipment for mass production of asphalt concrete. The whole machine of the equipment consists of multiple systems, such as batching system, drying system, combustion system, powder supply system and dust prevention system. Each system is an important part of the asphalt mixing plant.
The working condition of the combustion system of the asphalt mixing plant has a great impact on the whole system, which is related to the economic efficiency of the whole system, temperature control accuracy and flue gas emission indicators. This article will briefly introduce how to judge the working condition of the combustion system of the asphalt mixing plant.
Generally speaking, due to the complexity of the detection equipment and methods, there are no conditions to achieve in the working process of most asphalt mixing plants. Therefore, it is more convenient to judge the working condition by a series of relatively intuitive factors such as the color, brightness and shape of the flame. This method is very simple and effective.
When the combustion system of the asphalt mixing plant is working, when the fuel is burning normally in the drying cylinder, the user can observe the flame through the front of the cylinder. At this time, the center of the flame should be in the center of the drying cylinder, and the flame is evenly distributed around it and will not touch the cylinder wall. The flame is full. The whole outline of the flame is relatively clear, and there will be no black smoke tail.
The abnormal working state of the combustion system includes, for example, the diameter of the flame is too large, which will cause serious carbon deposits on the furnace tube and affect the subsequent working state of the combustion system.

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.

Asphalt mixing plants (also known as asphalt batching plants) are complete sets of equipment used to produce asphalt concrete. According to different classification standards, Shandong asphalt mixing plants can be classified into the following types:
I. Classification by Mixing Method
1. Continuous Drum Type:
Features: Employs a continuous, uninterrupted mixing method. The heating and drying of aggregates and the mixing of the mixture are carried out continuously in the same drum.
Advantages: Simple process flow and relatively simple equipment.
2. Intermittent Forced Type:
Features: First, the pre-mixed cold aggregates are added to the drying drum for drying. Then, the hot aggregates are lifted to a vibrating screen for screening. After being metered in the hot storage silo, they are added to the mixing pot along with metered mineral powder and asphalt to form an asphalt mixture. The heating and drying of aggregates and the mixing of the mixture are carried out periodically and by force.
Advantages: Due to the secondary screening of aggregates and the secondary metering of asphalt, the aggregate ratio and the ratio of aggregate to asphalt are more accurate.

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.

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.

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.

Asphalt mixing plant equipment is mainly composed of batching system, drying system, ignition system, hot material lifting, vibrating screen, hot material storage bin, weighing mixing system, asphalt supply system, granular material supply system, dust removal system, finished product hopper and automatic control system.
Components:
⑴ Grading machine
⑵ Vibrating screen
⑶ Belt vibrating feeder
⑷ Granular material belt conveyor
⑸ Drying mixing drum;
⑹ Coal powder burner
⑺ Dust removal equipment
⑻ Bucket elevator
⑼ Finished product hopper
⑽ Asphalt supply system;
⑾ Distribution station
⑿ Automatic control system.

Due to raw materials or usage, asphalt mixing plants will be subject to a certain degree of wear or other failures during daily use. If they are not controlled or repaired in time, the problem will be further exacerbated. For asphalt mixing plants, what are the ways to prevent wear and failure?
If the asphalt mixing plant is not treated in time after being worn, it may corrode once it is in contact with air, rainwater, etc. for a long time. If the parts of the asphalt mixing plant are severely corroded, the service life and normal operation of the entire equipment will be affected.

Due to the good reliability of asphalt, more and more fields have just begun to use asphalt as raw material for daily production and processing work; such as construction, urban roads, etc. In addition, the processing plant will humanize and manufacture asphalt according to customer requirements, and will use professional technical tools for asphalt mixing work. Compared with the application of old technical equipment, the new asphalt mixing equipment has stronger technicality and efficient operation speed. In addition, the equipment will use an automatic computer operating system to reduce redundant errors and reduce the working time of operators.
In addition, the processing plant will also mix and manufacture asphalt with higher precision asphalt mixing equipment, and only a small amount of raw materials and natural materials will be used for asphalt mixing and manufacturing; and it can reasonably control the quality of goods and improve the quality of goods.
Do you master the whole process of asphalt mixing equipment? The whole working process is a fusion of stone mixing, slag micro powder mixing and asphalt mixing. You can find a lot of detailed information below.

In the construction industry, the installation and application of asphalt mixing plants can often be seen. This kind of equipment can complete the processing process of limestone and other powder products. The equipment has a reasonable structure and high working efficiency. It can save more costs for manufacturers during the production of asphalt raw materials. Therefore, the construction and other industries now attach great importance to the application of this equipment. During the production and processing of the equipment, the staff also need to pay attention to several operating skills to ensure that the equipment can operate stably and provide more benefits for production work.

Asphalt mixing plant is also called asphalt mixture mixing equipment, which is mainly used to produce asphalt mixtures of various specifications. It is an important equipment in projects such as road construction, highway maintenance and airport runway construction. The main components of an asphalt mixing plant include cold material supply system, drying drum, screening system, weighing system, agitator, finished product silo and control system.
The workflow of an asphalt mixing plant is generally as follows: