How to accurately measure the mixing power of asphalt mixing plant

With the strengthening of the trend of environmental protection and energy conservation, the environmental protection of asphalt mixing plants has gradually become the mainstream form of mixing plant development. What kind of equipment can be called an environmentally friendly asphalt mixing plant? What are the basic conditions that must be met?
First of all, as an environmentally friendly asphalt mixing plant, it must meet the requirement of using less energy consumption during use. That is to say, under the conditions of the same quantity and quality, less energy is consumed during the operation process, including various resources such as water and electricity.
Secondly, environmentally friendly asphalt mixing plants not only require less energy consumption, but also must achieve higher production efficiency, while also reducing carbon emissions in the entire production process, so as to meet the proposed low-carbon production requirements

1: The site should be located on higher ground and away from residential areas and densely populated areas.
2: The venue should consider the transportation distance and choose a location with convenient transportation.
3: Determine the website construction plan according to the terrain

Asphalt mixing stations are constructed according to a certain process, which can not only ensure the construction quality, but also ensure that the asphalt mixing station is not damaged. Although construction details are critical, the key skills of asphalt mixing station construction must be mastered.
Before the construction of the asphalt mixing plant, the top surface of the asphalt mixing station construction range should be removed, and the site elevation should be kept dry and flat to meet the design requirements. If the surface is too soft, the foundation should be reinforced to prevent the construction machinery from losing stability and ensure that the pile frame is vertical.
Then the on-site construction machinery should be inspected to ensure that the machinery is intact and assembled and tested under the premise of meeting the requirements. To ensure the verticality of the asphalt mixing plant, the deviation of the gantry guide and the mixing shaft from the verticality of the ground shall not exceed 1.0%. Asphalt mixer manufacturer.

Certain failures cannot be avoided during the use of the asphalt mixing plant. For example, a malfunction of the cold material feeding device may cause the asphalt mixing plant to shut down. This may be due to a malfunction in the asphalt mixing plant or due to gravel or foreign matter being trapped under the cold material belt. If it is stuck, if it is a circuit failure, first check whether the motor control inverter of the asphalt mixing station is faulty and whether the line is connected or open.

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.

Emulsified asphalt equipment plays an important role in road construction, and its production quality will directly affect the quality of facilities such as roads. In order to operate it better, we need to pay special attention to the following four points when applying emulsified asphalt equipment:
1. Before spraying, the emulsified asphalt equipment must check whether the position of each valve is correct. The hot asphalt added to the emulsified asphalt equipment must reach an operating temperature of 160~180℃. For long-distance transportation or long working time, a heating device can be used for insulation, but it cannot be used as an oil melting furnace.
2. When the asphalt in the emulsified asphalt equipment is heated by a burner, the asphalt height must exceed the upper plane of the combustion chamber, otherwise the combustion chamber will be burned.
3. The emulsified asphalt equipment cannot be filled too full, and the fuel filler cap must be closed tightly to prevent asphalt from overflowing during transportation.
4. This vehicle has two front and rear control consoles. When using the front control console, the switch must be turned to the front control. At this time, the rear control console can only control the lifting and lowering of the nozzle.
I believe that through the above description, everyone will be more comfortable when using emulsified asphalt equipment in the future. As for the relevant operating matters of the equipment, I will introduce them to you here today. If you want to know more information, please pay attention to the next explanation.

It is inevitable that the asphalt mixing plant will have insufficient pumping force during use. In fact, during the construction process, as long as the asphalt mixing station is operated in accordance with regulations, and the accessories are cleaned and replaced in time, the asphalt mixing plant will generally not have insufficient pumping force. Now the editor of the asphalt mixing station manufacturer briefly introduces the common solutions to insufficient pumping force of asphalt mixing plant as follows.

Bitumen is a polymer mixture composed of asphaltene, colloid, aromatic hydrocarbons and saturated hydrocarbons. Asphaltene is dispersed in aromatic hydrocarbons and saturated hydrocarbons with the help of colloid to form a colloidal structure. When the asphaltene content is low, the bitumen has good adhesion, plasticity and fluidity, but poor temperature stability and elasticity
Bitumen modification principle:
Bitumen is a polymer mixture composed of asphaltene, colloid, aromatic hydrocarbons and saturated hydrocarbons. Asphaltene is dispersed in aromatic hydrocarbons and saturated hydrocarbons with the help of colloid to form a colloidal structure. When the asphaltene content is low, the bitumen has good adhesion, plasticity and fluidity, but poor temperature stability and elasticity. The polymer modifier is similar to the asphaltene in bitumen. Its addition, after fully swelling with bitumen, absorbs the aromatic hydrocarbons and colloid in bitumen to form a new colloid, which not only retains or increases the adhesion, plasticity and fluidity of the original bitumen, but also improves the temperature stability and elasticity of bitumen, thereby achieving the purpose of improving the road performance of bitumen.
Bitumen modification process:
The modifier and additive are evenly and finely dispersed into the matrix bitumen, and the contact area between the original bitumen and the modifier is increased as much as possible to ensure full swelling and development, which not only improves the utilization rate of the modifier but also makes the original bitumen performance the most perfect improvement.
The modified bitumen complete production equipment has the following advantages:
1. It is suitable for a variety of modifiers, such as SBS, EVA, PE, etc.;
2. The ratio of modifier to bitumen can be set at any time according to user needs;
3. The production volume of each cycle can be set arbitrarily within the maximum productivity;
4. The modified bitumen has high quality, and the modifier has a small particle size and uniform distribution after emulsification;
5. The production process is fully automatically controlled, and the production records can be queried at any time;
6. The weighing system is accurate in measurement, and the weighing error is less than 1%;

In fact, asphalt mixing stations are not uncommon in our daily lives. They are mainly a unit of equipment specially designed to mix asphalt. What we really don’t understand is the gas system of the asphalt mixing station. Only correct maintenance And operation can bring out the best production effect. So what are the faults in the gas circuit of asphalt mixing station?
The following three points are the more common gas path failures of asphalt mixing stations:

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 highway construction, asphalt mixing station plays a vital role. As a kind of equipment integrating intelligence, high efficiency and environmental protection, asphalt mixing station provides strong support for improving the quality of highway construction. This article will introduce the relevant knowledge of asphalt mixing station in detail to help readers understand this key equipment.
Asphalt mixing station is a kind of equipment specially used for producing asphalt concrete, which is widely used in highway, municipal road, bridge and other engineering construction. Asphalt concrete is a kind of building material mixed with asphalt, gravel, sand and other materials. It has the characteristics of strong durability and good compressive resistance. It is an ideal material for highway construction.
2. Features
Intelligence: Asphalt mixing station is equipped with advanced control system and sensor, which can realize automatic production, reduce manpower input and improve production efficiency.
Environmental protection: Asphalt mixing station adopts closed design to reduce dust pollution, and is equipped with noise reduction facilities to reduce noise pollution.
Efficiency: Asphalt mixing station has high production capacity and can produce a large amount of asphalt concrete in a short time to meet the needs of engineering construction.
3. Function
Provide asphalt concrete: The main function of asphalt mixing station is to produce asphalt concrete and provide necessary building materials for highway construction.
Improve highway quality: By using asphalt concrete, the smoothness, compressive strength and durability of the highway can be improved, thereby improving the quality of the highway.

Due to certain restrictions on the current development status and conditions, the profits of the domestic asphalt pavement construction industry are getting lower and lower. Therefore, in the process of using asphalt mixing plants for production, on the one hand, the quality of the products and customer requirements must be ensured. , on the other hand, it is necessary to reduce production costs. Therefore, cost management is very important, and refined management should be implemented in this regard.
First, for device management. Since equipment is the foundation and key of production, in the cost management of asphalt mixing stations, the management of equipment plays an important role in reducing costs. Only by managing the equipment well can the normal working status be ensured, which provides the necessary guarantee for the smooth progress of the project. In fact, in today’s highway projects, equipment costs account for a large part of the cost and profit. The huge profits after the construction of a highway will be greatly affected by the management of materials and equipment.

The quality of the asphalt mixing plant will be a key factor affecting the quality of the project. After reviewing relevant materials related to the production and construction of asphalt concrete, we summarized some cases of failures in asphalt concrete mixing stations during construction and analyzed the reasons.
1. Unstable output and low production efficiency of asphalt mixing plants
(1) Improper proportioning. The mix ratio of asphalt concrete is divided into target mix ratio and production mix ratio. Among them, the target mix ratio controls the cold material transportation ratio of sand and gravel materials, and the production mix ratio is the mixing ratio of various types of sand and stone materials in the finished asphalt concrete materials specified in the design. The production mix ratio is determined by the laboratory, which directly determines the off-site grading standard of the finished asphalt concrete. The target mix ratio is set to further ensure the production mix ratio, and can be adjusted appropriately during production according to the actual situation. When the target mix ratio or the production mix ratio is not appropriate, the stones stored in each measurement of the asphalt mixing station will be disproportionate, with some overflowing and some other materials, unable to be weighed in time, and the mixing cylinder will be idling, resulting in reduced output.

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.

In order to keep the asphalt mixing plant in a stable operating process, a series of adverse factors related to it must be excluded. What should be paid attention to in this process?
First of all, the selection of the delivery pump in the asphalt mixing plant must meet the requirements of asphalt pouring per unit time during construction, height, and horizontal distance requirements. At the same time, there must be a certain technical and production capacity reserve, and the balanced production capacity is preferably 1.2 to 1.5 times.
Secondly, the movement and hydraulic systems of the asphalt mixing plant must be normal, and there must be no abnormal sound and vibration to avoid large aggregates and lumps inside the equipment, otherwise it is easy to get stuck at the feed inlet of the mixing plant or be blocked due to arching. Another point is that when the asphalt mixing plant is in the same site, it is not suitable to use too many pumps and pumps from multiple manufacturers to avoid affecting its normal operation.

Current highway projects are generally large-investment projects. When carrying out actual project construction, it is very necessary to control the cost of the project. The production cost control and management of asphalt mixing stations in highway projects plays a huge role in controlling the cost of the entire highway project, because the main expenses of highway projects are concentrated on the mixing stations, and almost all the equipment used in highway projects Materials are closely related to the mixing station.

The actual operation steps of drying drum of asphalt mixing equipment: 1. Pay attention to routine inspection; 2. Proper operation steps; 3. Effective maintenance.
Drying drum is a cylindrical device specially used for heating and drying stones in asphalt mixing equipment. Proper application and maintenance of drying drum can maximize the performance of drying drum, increase its service life and reduce application cost. Let’s take a look at the actual operation steps below.
1. Pay attention to routine inspections
The asphalt mixing equipment drying drum has been tested and inspected before leaving the factory, but it will be subjected to vibration and vibration during transportation to the construction site. A comprehensive inspection should be carried out before use: check whether all anchor bolts are tightened; whether all key pins are properly driven; whether all drive devices are adjusted according to the manufacturer’s instructions; whether all pipe connections are appropriate and whether the three-way joints are reliable; whether the entire equipment is fully lubricated; start the motor and check whether all parts can rotate steadily in the correct rotation direction; whether the pressure gauge can work normally and whether the valve is adjusted to the correct working pressure; whether the burner ignition mechanism is available and whether the gate valve is open.
2. Correct operation steps
After the equipment is started, it is recommended to control the machine manually at the beginning, and then switch to the automatic control mode after achieving the required production volume and pouring temperature. The stone should be dried and have a stable moisture content as much as possible so that the stone can maintain a stable final temperature when passing through the drying drum. If the stones delivered to the drying drum change frequently and the moisture content changes each time, the burner should be adjusted frequently to compensate for these changes.
The stones directly from the crushed stone have a relatively constant moisture content, while the stones from the outdoor storage yard have a higher moisture content, and the moisture content of different piles varies greatly. Therefore, it is best for the stones to come from the same source.

When we operate the asphalt mixing station, we should heat the equipment half an hour in advance, and the clear tank should be heated for at least two hours; and manually operate each part of the equipment to ensure that it is in good operation. status; it is also necessary to conduct relevant inspections on the valves and manually collect and return oil to ensure that the equipment can operate normally.
Several requirements for safe operation of asphalt mixing plants:

In recent years, asphalt pavement has dominated highway surfaces. With the rapid development of our country’s national economy, highway traffic volume is increasing, axle loads are increasing rapidly, vehicle speeds are increasing, and there are more and more quality problems occurring on asphalt pavements. Some are damaged after repair, and some have a service life of up to Less than design age. This has put forward increasingly higher requirements for the quality of asphalt pavement, and an important factor affecting the performance of asphalt surface layers is the gradation composition of the mixture. This article discusses the mix design of asphalt mixture.

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.

Judging from the situation of highways in our country, asphalt pavement is the most used, which is one of the reasons why asphalt mixing plants have developed so rapidly. Under the situation of rapid economic development, the quality problems of asphalt pavement are gradually increasing, which puts forward higher and higher requirements for the quality of asphalt. It is understood that the primary factor that affects the quality of asphalt is the ratio of raw materials. This is also covered in the introduction of asphalt mixing stations. You can discuss it together.
In order to obtain high-quality asphalt products, in addition to the asphalt mixing equipment meeting the requirements, selecting the appropriate asphalt mixture gradation type is also a top priority. According to my country’s current regulations, the maximum particle size of the asphalt mixture in the upper layer of the highway should not exceed half of the layer thickness; while the maximum particle size of the aggregate in the middle surface layer of asphalt mixture should not exceed two-thirds of the layer thickness; and the asphalt layer should not exceed half of the layer thickness. The maximum nominal aggregate size of the pavement structural layer mixture should not exceed one-third of the layer thickness.
Based on this analysis, if an asphalt surface layer with a certain thickness is selected according to the above specifications, the particle size of the asphalt mixture aggregates will generally be larger, which will inevitably bring insurmountable construction difficulties to the construction of asphalt concrete pavement. After investigation, testing, analysis, and comparison, it can be seen that the lower layer has a wider choice, so the AG-201 gradation type can be used; while the selection of the upper layer mixture type is more difficult, and it is necessary to achieve a reasonable choice of this mix ratio. , on the one hand, we must examine as many aggregate resources as possible, and on the other hand, we must also consider the model of the mixing equipment.
In order to ensure the quality of the project, strict selection and inspection of engineering materials must be carried out. Therefore, the selection and determination of raw materials should be based on the requirements for pavement structure and use quality, combined with the supply of floor materials, and inspection in accordance with the requirements of relevant test procedures, and then Select the best materials so that all technical indicators of the materials meet the specified technical requirements.

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. In order 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.
Secondly, the cleanliness of the hydraulic oil used in the asphalt mixing plant must be ensured. After all, the working environment of the equipment is relatively harsh, so it is necessary to prevent sewage and mud from entering the hydraulic system. The hydraulic oil should also be replaced regularly according to the requirements of the manual. Once water or mud is found mixed in the hydraulic oil during inspection, the hydraulic system should be stopped immediately to clean the hydraulic system and replace the hydraulic oil.
Since there is a hydraulic system, of course, a matching cooling device is also required, which is also an important focus in the drive system of the asphalt mixing plant. To ensure that its function can be fully exerted, on the one hand, the hydraulic oil radiator should be cleaned regularly to prevent the radiator from being blocked by cement; on the other hand, the radiator electric fan should be checked to see if it is running normally to prevent the hydraulic oil temperature from exceeding the standard.
In general, as long as the hydraulic oil of the asphalt mixing plant drive device is kept clean, there are generally few faults; but the service life varies from manufacturer to manufacturer, so pay attention to its alkalinity observation and replace it in real time.

Bitumen, a black or brown petroleum-like material, has a viscosity ranging from a viscous liquid to a glassy solid. It can be obtained as a residue separated from natural deposits. Bitumen consists of hydrogen and carbon compounds with small amounts of nitrogen, sulfur and oxygen. The preparation of mixed materials for mixing with asphalt is done in several steps:
Prediction: According to the asphalt recipe, the individual components of the aggregate are weighed. Usually this is done using a belt scale, since the material must go to the next step in a continuous flow.

Asphalt mixing stations, also known as asphalt concrete mixing stations, can produce asphalt mixtures, modified asphalt mixtures, and colored asphalt mixtures, which fully meet the needs of building highways, grade roads, municipal roads, airports, ports, etc. Changmeng Electric Power introduces the safety operating procedures of asphalt mixing plants below:
1. During the operation of the mixing equipment, in addition to ensuring that the 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 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 determining fuel consumption. Additional material sheds should be added.
3. Before operation, all working parts and devices of the mixing equipment should be fully checked to see if they are intact and normal. If there are any problems, they must be properly handled before operation, and it is forbidden to operate with illness.
4. The operation must be carried out strictly in accordance with the procedures and precautions specified in the instruction manual. After normal ignition, the dust collector should be monitored to ensure that the drying drum burns under negative pressure; after production starts, the hot material elevator and agitator should be monitored to see if they are working normally to coordinate the operation of other parts.

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.

If you look at an asphalt mixing plant from a professional perspective, do you know how to judge its work and significance? In fact, the so-called asphalt mixing station is the one that produces asphalt. We can usually see it in road construction projects. Specifically, it mixes some materials that need to be used during the construction process according to certain proportion requirements. Then complete the corresponding construction work.
Then, we can analyze it from a market perspective. Since it was used in the market, it has been widely praised by users. Today’s asphalt mixing plant technology has been greatly improved, and the entire set of equipment used has a variety of advantages. , such as meeting the requirements of stable control, screening, efficient dust removal, excellent mixing, and green environmental protection during the work process. It is even more obvious when used in large-scale projects such as high-grade highways and airports.

How should the working efficiency of asphalt mixing plant be improved? Let’s take a brief look.
1. Parameter setting. When using asphalt mixing plant to produce asphalt, the temperature of the hot pot can be observed through the temperature controller, but there is a certain difference between the information displayed by the temperature controller and the actual temperature. The generation of this error does not have much impact on the processing quality. If the information entered by the staff when setting the temperature is accurate, there will be no problems with the produced asphalt. It can be seen that the setting of parameters requires more attention.
2. Pay attention to avoid moisture in the equipment. When transporting and storing the asphalt mixing plant, pay attention to avoid moisture in the equipment, because there are many circuit devices inside it, if moisture, it may cause quality problems or even damage. This is also an important point to consider to improve production efficiency.
3. When installing and using the asphalt mixing plant, pay attention to whether the equipment is grounded. Before starting the equipment, it must be preheated in time so that the temperature standard can be reached within a shorter time range, so as to enter the normal asphalt production process.

Asphalt mixing plant refers to a complete set of equipment used for batch production of asphalt concrete. Its main function is to produce asphalt mixture, colored asphalt mixture, etc., and has been widely used in road construction. However, during the production process of asphalt mixture, pollutants such as noise, dust, and asphalt smoke will be produced, seriously polluting the environment and threatening the health of workers. Therefore, under the current background of building a resource-saving and environment-friendly society in our country, it is very important to save energy and reduce consumption during the use of asphalt mixing plants. The following article mainly starts from the three factors that affect the asphalt mixing plant, and explores the energy saving and consumption reduction measures of the asphalt mixing plant, aiming to reduce the cost of asphalt production and improve the efficiency of the asphalt plant.

When an ordinary asphalt mixing station completes the mixing operation, it will cause great pollution to the surrounding environment. In order to solve this problem, environmentally friendly asphalt mixing equipment came into being. What are the characteristics of this type of equipment?

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.