Technical parameters of asphalt mixing equipment

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8, solenoid valve: Also known as electromagnetic commutator valve, Chongqing asphalt Concrete Mixing station by changing the direction of high-pressure gas to promote the piston movement in the cylinder.

Then, you need to do the cleaning work.
According to the above situation, first choose the appropriate washing items, the use of low-temperature water for cleaning, to maintain uniform water flow, moderate strength, can not cause damage to the asphalt mixing station dust filter bag.
Then, sequentially, the order is drying, repair and testing to ensure that the cleaning quality meets the requirements.

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The optimum temperature for the mixing, transport, laying and compaction of asphalt pavement depends on the hardness (viscosity) of the asphalt, the time and length of transport to the project site and when it is compacted.

At the same time, the control system of asphalt mixing station can also achieve automatic weighing, automatic buckle and automatic adjustment of batching parameters, improve the accuracy of ingredients.
Coupled with its automatic continuous production function, the actual production efficiency of the mixing station has been greatly improved.

After a long period of use, then in order to continue the work of the asphalt mixing station, it is necessary to clean the dust filter bag.
Because the dust filter bag is a very important part of the bag dust collector, its ventilation performance is good, high dust removal efficiency, and has a certain acid resistance, alkali resistance and heat resistance, weaving process using multilateral velvet, improve the fabric thickness, full of elasticity, so the dust removal effect is very good, and its service life is generally four to six times times the glass fiber fabric , so it is very important for its cleaning work.

Asphalt mixing station control system in the hardware configuration is also very scientific, reasonable selection, adhere to the principle of global procurement, international brand products as the main selection range, so that the overall stability of the system, powerful, easy to operate.

Again to see is the asphalt mixing station control system software aspects, not only has the automatic moisture content conversion function, but also can bulk total disk number and disc volume can be automatically converted, thus helping to reduce the workload and the possibility of misoperation.

Asphalt Mixing plant mainly includes batching system, drying system, combustion system, hot material lifting, vibration sieve, hot material storage warehouse, weighing stirring system, asphalt supply system, powder supply system, dust removal system, finished warehouse and control system and other parts, control system on the core, it manipulator all the action of the Asphalt mixing station.

In addition to the basic, the asphalt mixing plant control system has a lot of advanced functions, due to the use of industrial control computers, I/O acquisition and high-precision weighing systems, so according to the asphalt production process and quality requirements, through the control software to achieve automatic control of data acquisition and production, and real-time recording of production data information, Use data management to query/print multiple production reports.

Asphalt Mixing Plants mixing station equipment in operation, the construction site will often produce a lot of dust, therefore, it is necessary to be equipped with the corresponding dust removal equipment.
Generally used is bag type dust collector, its dust filter bag is an effective dust filter material, with good ventilation performance, high dust removal efficiency, and has a certain degree of acid resistance, alkali resistance and heat resistance.

First of all, due to the actual situation, in order to ensure the effect of cleaning before the cleaning work, we need to first carry out chemical experiment treatment, the main step is to extract the bag sample, the use of professional equipment testing to detect the oil content of the filter bag, according Without any harm to it.

Secondly, for its surface is relatively easy to remove the dirt can first be removed by high-frequency vibration, so that the first into the wall of the filter bag to remove the larger dirt impurities, and the fiber entanglement fastness has no effect, to maintain the asphalt mixing station dust filter bag performance, dirt easy stripping.
Then, select the appropriate chemical preparation to soak the filter bag, the filter bag gap inside the oil stains dirt removal, to maximize the ventilation performance of the filter bag.

Basic knowledge of burner in asphalt mixing station

Thermal conductivity oil, is GB/T 4016-1983 "Petroleum product terminology" in the "heat carrier oil" used name, the English name is heat transfer oils, used for indirect transmission of heat of a class of special oil with better thermal stability.
Because of its uniform heating, accurate temperature control, can produce high temperature under low steam pressure, good heat transfer effect, energy saving, transportation and easy operation and other characteristics, in recent years has been widely used in various occasions, and triangular core winding machine use and dosage more and more.

Asphalt mixing equipment is a kind of equipment used in highway construction, it is composed of combustion station and asphalt mixing station and other parts, in order to achieve the goal of energy saving and emission reduction, what improvements should be made from the technical aspects?

Burner as a high degree of automation of mechatronics equipment, from its realization of the function can be divided into five major systems: Air supply system, ignition system, monitoring system, fuel system, electronic control system.

Mineral type heat conduction oil is a distillation product of petroleum refining process, the main component of which varies with the composition of base oil.
It is generally a mixture of long chain alkanes and Naphthene.

Therefore, in the work of raw material matching, we need to consider the high pressure reciprocating pump in advance of these aspects of the problem, choose a reasonable matching scheme.
This will be conducive to the asphalt mixing plant construction quality improvement, of course, we must first as low as possible to collect and investigate aggregate resources, on the other hand, we also need to choose the appropriate mixing equipment model.

From the current situation of China's highway construction, in the future for a long time, asphalt mixing station will also get a great development.
This is also a result of rapid economic development.
However, we found that when the modern construction of asphalt pavement, there are more and more quality problems, therefore, we have to put forward more stringent requirements for the quality of asphalt use.

It is obvious that the production efficiency of civil asphalt mixer is smaller, so if you want to configure asphalt mixing station, you will not choose this type of product, it is only suitable for smaller projects.
The more common forms are crawl drum type asphalt mixer, diesel engine drum type asphalt mixer, climbing type Asphalt Mixing Plants mixer, lifting drum type asphalt mixer and so on.

When testing the heat conduction fluid in operation, it is found that the viscosity is not regular because of the joint influence of decomposition and polymerization. The acid value increases gradually and then decreases in the early stage of oxidation. Flash point is an important index to explain the safety of oil operation. The residual carbon has been on the rise, starting slowly, and then the numerical growth has accelerated significantly.

In addition, the energy saving and emission reduction of asphalt mixing equipment should also be from the asphalt mixture production process to start, mixed material temperature of at least 100 ℃, can use emulsified asphalt, so that you can have a good energy-saving role
>At the same time, we should also improve the working principle of mixing equipment, according to different needs to choose different mixing equipment, so that the effectiveness of the equipment can be fully utilized

>The function of the air supply system is to send a certain wind speed and wind volume to the combustion chamber, its main components are: Shell, fan motor, fan impeller, wind gun fire pipe, valve controller, valve gear plate, diffusion disk

>2, to avoid the heat conduction oil coking heat conduction oil in the operating temperature above the maximum use temperature, in the guide pipe wall will appear coking phenomenon, with the thickening of the coking layer, the guide tubing wall temperature is high and promote adhesion coking, the continuous thickening of the pipe wall temperature further improved, with the pipe wall continuous thickening heat transfer performance deterioration, at any time there may b
>Therefore, strictly control the temperature of the heat conduction oil at the outlet of the thermal carrier must not exceed the maximum use temperature, the maximum film temperature of the heat carrier should be less than the allowable oil film temperature

>and engineering asphalt mixer is generally used in the mixing station to do mixing station host, because of its relatively large power, so the production efficiency is also very high, large-scale engineering construction process must choose this type of asphalt mixer

>Asphalt mixers are used in highway construction, and if this type of equipment is differentiated according to power, there can also be differences between civil and engineering
>Apart from the difference in productivity between the two, what are the differences?

Asphalt Mixing station brings a lot of convenience

Can only install complex transmission tape after restarting the vibrating screen, but found that the eccentric block beat more intense, and replace the vibrating screen bearings, installation of eccentric blocks, restart the vibrating screen, ammeter instructions on the normal, the machine tripping phenomenon will no longer appear.

The influence of asphalt mixing station can not be underestimated, it also has a great impact on the heating efficiency of Asphalt Drum Mix Plant conveyor, which is because the important performance index of asphalt-viscosity and sulfur content, etc., are closely related to the asphalt mixing station.
In general, the greater the viscosity, the worse the atomization effect, direct impact on work efficiency and fuel consumption.
With the increase of temperature, the viscosity of heavy oil decreases gradually, so the high viscosity oil must be heated and warmed in order to transport and atomization smoothly.

For the entire metering system of the asphalt mixing station, the operator should be checked frequently.
Check whether each metering is completely in the suspension state, there is no hysteresis phenomenon, check whether the various weighing sensors work properly, induction is sensitive.
Regular checksum, so that the display value and the actual value of the match, such as the discovery of problems to be resolved in a timely manner, to ensure that the metering system is in good working condition

　　2 The traditional cement stabilized base construction must go through 7 days or even 14 days of wellness period in order to carry out asphalt surface overlay.
After three days after the construction of the foam asphalt regeneration layer, the asphalt surface layer can be paved directly in the upper part.
This can greatly reduce the impact of construction on traffic.
The control of traffic in construction is often the most worried and distressed problem of owners and construction units in the construction process.

In the asphalt mixer for no-load test run, the machine suddenly tripped, again start the problem is still there.
This can be a bad user, the work process will be delayed as a result, the problem must be overcome as soon as possible.

Asphalt Mixing station is an important equipment, when used, because of the complexity of its structure, there may be some problems, such as its heavy oil combustion system often problems are: burner can not start, burner can not ignite properly and fire accidentally extinguished and so on.
So, what should I do with these questions?

In this case, we can only try to replace the thermal relay of the asphalt mixer with a new one, but the problem is still not solved, and check the contactor, the motor's interphase resistance, grounding resistance, interphase voltage, and so on, also did not find the problem, remove the transmission tape, start the vibrating screen in all aspects are normal, This shows that the failure of the asphalt mixer is not in the electrical part.

Analysis of the reasons for the main points are as follows: 1, heat conduction oil high oil tank is too low, resulting in poor heat conduction oil circulation, 2, double-layer tube eccentric; 3, heat conduction tubing passing long; 4, heat conduction oil pipeline did not take appropriate insulation measures and so on, these are the main factors affecting the heating effect.

Therefore, the experienced operator should be able to accurately determine the quality of the fuel, the dry and wet degree of the original material, as well as the working conditions of the combustion system.
Identify problems and take appropriate measures in a timely manner.
Although the stirring equipment now has the ability of automatic temperature control, but because of the temperature detection to add and subtract flame regulation temperature needs a process, so the temperature control has hysteresis.
In order to ensure that the mixing temperature mixing station does not produce waste, the operator should carefully observe the temperature change rate, the results of temperature changes in advance prediction, and manually add to the flame or increase or decrease the amount of feed, to control the change in temperature, so that the result of the change does not exceed the specified range, thus reducing or eliminating waste.

　 1 using the traditional maintenance program, the owner unit spends a lot of money on the processing of milling materials.
In the long run, a large amount of money for the disposal of recyclable materials is definitely not an economical option.
The use of foam asphalt flexible base, due to its excellent structural strength, to avoid the production of shrinkage cracks, the upper asphalt concrete cover can be reduced thin.
Compared with semi-rigid base, the flexible base of foam asphalt has better fatigue performance, which can make the expressway have a longer service life.
If we consider these factors in a comprehensive way, the use of cold regeneration technology for road maintenance can save 20%-40% road maintenance costs.

Factors to be considered in designing the color of asphalt mixing equipment

There is also a treatment method is also in the asphalt concrete mixing equipment outside a closed silo, but the water pipe, nozzle and so on into an air humidifier or sprayer, in order to increase the air humidity in the silo, spray dust removal, so it will add some costs.

In the heating and drying of wet and cold minerals with high water content will consume a lot of heat energy, therefore, asphalt mixing station drying system must be combined with the actual situation to choose fuel.
Usually gaseous fuels (such as natural gas), as well as solid fuels (coal), etc., these fuels are often used to burn performance is not very good, heat can not be effectively played.
Therefore, cold aggregate drying system in the production should be selected liquid fuel, such as heavy oil, diesel and so on.
The so-called heavy oil is fuel oil, the color is black, according to the classification criteria of international conventions, it can be divided into sustainable oils.
Heavy oil because of its own water content is relatively low, there are few impurities, and has a relatively viscous, not easy to evaporate and other characteristics, so it is widely used.
Diesel prices are slightly higher than heavy oil, so heavy oil is more selective from an economic practical point of view.
In addition, for the selection of fuel for asphalt mixing stations, it is necessary to choose the best fuel according to the actual situation, taking into account the purity, moisture, combustion efficiency, viscosity and transportation of the fuel.
In the past, the fuel used is a kind of heavy oil, which has a great adverse effect on human body and environment, so choosing the new fuel at the present stage, with the aim of energy saving and consumption reduction, can not only reduce the cost, but also play the role of improving environmental benefits.

(3) To maintain a good shape of the combustion flame under normal circumstances, the flame shape of the burner should be as follows: The flame center ejected from the burner is in the middle of the burner dryer, forming a flame length of about one-third of the length of the burner dryer, the ejected flame should be symmetrical distribution, and will not touch the burner of the dry cylinder wall, ejected from the normal flame will not emit a different sound, there will be no jumping phenomenon.
Compared to the position of the spray gun head, the flame bezel may have a certain effect on the length and diameter of the flame, generally 1.
5mm.
As the flame bezel approaches the burner nozzle, the length of the flame increases, while the diameter shrinks, and the correct flame shape can be obtained by moving the distance between the nozzle and the flame bezel slightly.

Because the working field of asphalt mixing equipment is also different, so the color environment of the concrete construction site of construction machinery products is also one of the considerations to design the color of mixing equipment, in order to play a warning or protection role.

Asphalt concrete mixing equipment in the process of use, it is easy to produce dust pollution, not only will affect the stirring effect and the normal operation of equipment, but also to the environment and personnel caused harm.
Therefore, in order to prevent two pollution of dust, to avoid damage to the body, must be in the asphalt concrete mixing equipment to set up the necessary dust removal device, play the role of Dustproof.

When the Mobile Asphalt Mixing Plant concrete mixing equipment produced when the stone powder, fly ash and other dust collected by the bag dust collector, can be treated in different ways, one is rain curtain type dust-proof.
Is the bag dust collector outlet connected to a specially constructed closed silo, and installed a lot of water pipes and nozzles at the top of the silo, constantly spray down the water.

(4) Adsorption method It is the use of more active substances than the surface as adsorbent, the asphalt flue gas physical adsorption, and then the adsorption agent regeneration reuse process.
The method has the simple process, high purification efficiency and low investment and operation cost.
According to the properties of bituminous smoke and the comparison and analysis of the above methods, it is suggested that the adsorption method should be used to treat asphalt smoke exhaust gas, and activated carbon should be used to carry out physical adsorption of asphalt smoke
The removal efficiency of benzene pyrene and bituminous smoke reached 99.
5% or more.
After the asphalt fume treatment is up to standard, the exhaust cylinder outside the drain is not less than 15 meters.

(3) Absorption method It uses various mixed components in asphalt flue gas to have different solubility in the absorber, or the active component in the absorber reacts with a certain component to achieve the purpose of treating the asphalt flue gas.
Generally use gasoline, diesel and other substances for absorption, this method system resistance is small, low energy consumption, simple equipment, easy maintenance, but the purification rate is not high, flammable, also not easy to adopt;

Reasons for tripping of asphalt mixer Vibrating Screen

V. Additive batching station, wind conveyor, mixer
Emulsified Asphalt Device production line is combined with foreign advanced technology and data, into China's current emulsified asphalt technology development needs of independent development and production.
At the same time also the production of XL-15 type rubber modified asphalt automatic production equipment.
The emulsion tester and emulsified asphalt production line overcome the characteristics of refractory modified asphalt with high SBS content, and have the characteristics of advanced technology, high degree of automation and simple operation.

The surface of the oil slick on the asphalt surface is because there are more bubbles produced by the emulsification process, and the bubble ruptures and remains on the surface, forming the surface of the oil slick.
If the surface of the oil slick is not very thick, stir before use can dissolve, if the latter words need to be added to the appropriate defoamer or slow stirring, etc., can be eliminated.

Asphalt mixing station under the action of drying materials, the equipment will appear violent tremors occurred, which will directly lead to the gap between the wheel and rail and the wheel adjustment of the situation occurred, or the two sides of the position of the deviation of the situation, Therefore, the operator needs to add grease to the position of the surface contact between the wheel and the school wheel rail after the daily operation.

Remove the eccentric block, start the vibrating screen, the ammeter is displayed as 15A, fix the magnetic table seat on the Vibrating screen box board, use the needle to check the radial beat of the shaft end, and measure the maximum radial beat amount of 3.
5mm; The maximum elliptic degree of the bearing inner diameter is 0.
32mm.
Replace the vibrating screen bearing, install the eccentric block, restart the vibrating screen, the ammeter indication is normal value (10A).
Tripping is no longer possible.

The use of emulsified asphalt produced by asphalt mixing equipment is very extensive, but there is a precipitation phenomenon in the process of storage, which is normal phenomenon? What causes this phenomenon to occur?

In fact, it is very normal for bitumen to precipitate during existence, and this is not treated as long as the requirements are met.
However, if it does not match the requirements of use, oil and water separation can be used to deal with it.
Asphalt will have precipitation, because the density of water fragrance is relatively small, so that the emergence of stratification phenomenon.

Asphalt Mixer Vibration Sieve appears: no-load operation tripping, again start the phenomenon of tripping again.
After replacing the new thermal relay, the fault persists.
Check contactor, motor interphase resistance, grounding resistance, interphase voltage, etc., did not find the problem; Remove the transmission tape, start the vibrating screen, the ammeter indication is normal value (10A), no-load Operation 30min also has no problem tripping phenomenon, indicating that the fault is not in the electrical part.
After loading the composite drive tape, restart the vibrating screen, found that the eccentric block beat more violently.

Asphalt Mixing Plant disassembly is a relatively large and complex process, equipment before disassembly needs to be based on its location and the actual situation to develop a plan can be implemented, and then all the disassembly personnel need to carry out a comprehensive technical and safety exchange, equipment before disassembly needs to do a good job of equipment accessories and appearance of the inspection registration record work.

Installation needs to be mapped out the asphalt mixing station mutual location map, so that in the installation of convenient to the staff for reference, asphalt mixing station in the disassembly of all the cables and wires are not allowed to cut, the equipment inside the internal and external line number and terminal plate number after confirmation that there is no error can be disassembled, Otherwise, you will need to adjust the identification of the line number.

Asphalt Batch Mix Plant mixing Station development prospects are very good, the market product competition is also very fierce, equipment in the use of often when the wheel and wheel and rail wear uneven situation occurs, and sometimes will emit some noise and gnawing edge situation, The main reason for its formation is that the asphalt mixing station has been rubbed under the action of high temperature and between the bracket and the wheel and rail after a period of work.

China's asphalt mixture mixing equipment enterprises in order to maintain competitive advantage, it is necessary to comply with the industry's large development trend at the same time, and constantly improve their own technical level, product quality, pay attention to brand building, establish a suitable sales channel for themselves.
The main trends of future industry to product and technology development include: the development of large asphalt mixing equipment, R d Energy saving, emission reduction, environmental protection and waste asphalt mixture recycling equipment, attention to product automation, intelligent control technology, supporting parts, especially key components of independent research and development and manufacturing.

Purpose and significance of regeneration of old asphalt pavement

　　2) Start the main oil pump into the circulatory system oil injection, while looking at the level indicator, in less than 2/3 of the height, stop oil injection, start the heat conduction oil circulation pump, so round trip, until the system is full of heat conduction oil.

Highway construction needs to consume a large number of asphalt, gravel, cement, sand and other road building materials, the road surface after a certain number of years will be maintenance and overhaul, alteration, the original used to pave the surface of a large amount of materials will be turned into waste, when these waste is dug out all into nature, will be abandoned, pollution and material waste and other environmental
Asphalt pavement Regeneration Technology, is the need to renovate or discard the old asphalt pavement, after digging and recycling, crushing, screening, and the new materials, the appropriate coordination, re-mixing, the formation of a certain road performance of recycled asphalt mixture, used in road construction surface, the bottom layer or pavement base of the whole process technology.
The regeneration and utilization of old asphalt pavement has the following significance:
(1) Through asphalt regeneration technology on the old pavement asphalt concrete recycling recycling, its circulation is applied to highway new road construction and maintenance, waste into treasure, to avoid waste pavement material stacking on the land occupation and environmental pollution;
(2) so that the old asphalt concrete in the incomplete aging of asphalt, gravel, sand and other applications, can reduce the construction of asphalt pavement and maintenance of new asphalt resources and gravel material resources consumption, reduce the destruction of gravel material mining to the natural environment;
(3) Reduce the cost of road maintenance and renovation, save the cost of the project, shorten the construction period, improve the progress of asphalt pavement.
Therefore, the recycling and utilization of old asphalt pavement has important economic and social environmental benefits.

After the overall solution is determined, then it is the details, from the processing process, assembly process, packaging transportation, economy, safety, reliability, practicality and so on to determine the location of each component, structure shape and connection mode.
However, in order to further ensure the future use of asphalt mixing station, but also to go through the improvement of the design phase, the original design as far as possible to improve.

In the work of asphalt mixing station, it will include many systems, each of which has different responsibilities.
The main function of the dust removal system is to be able to collect and collate the exhaust gas produced in the drying drum and the dust generated in other devices, and finally make its discharge substances conform to the relevant national standards and requirements.
Let's take a picture of the specific content below.

Any kind of mechanical equipment should go through the precision design, testing and other processes before making molding, asphalt mixing station is the same.
According to the survey found that for any Mobile Asphalt Mixing Plant mixing station, the following stages are required.

First of all, according to the needs of the market to determine the main technical parameters of the product to be designed, so the construction market survey, data analysis and other links are essential.
Secondly, through innovative conception, optimization of screening to determine the more ideal working principle, as well as the best solution to achieve this principle.
Finally, a schematic diagram of the overall design scheme should also be given.

　　(2) ignition so that the oil furnace normal operation, set the temperature 105℃-120℃, so that the heat conduction with dehydratio
/>Heating speed should not be too fast, generally not more than 20 ℃ per hour, when the temperature reached the set temperature after the shutdown, stay for a period of time (depending on the situation) to make the exhaust dehydration, so repeated several times can
/>Two times set the temperature 180℃-200℃, and then ignition, when the temperature rises to the set temperature, and then stay for a period of time, the purpose is to drain a small number of light components in the heat conduction

br />　　With the rapid development of China's basic construction, asphalt concrete mixing station and cement concrete mixing building have become necessary equipment in the construction and construction, and play an important role in the construction of the pro
br />Dust pollution of concrete mixing station has always been a difficult point of management, therefore, the traditional large concrete mixing station is mostly far away from the residential living quarters, built in convenient and remote l

br />　　7, regularly check whether the circulatory system has leakage, vibration and external sound, check whether the liquid surface of the expansion box exceeds the requirements, the sensitivity and reliability of the automatic control system of the asphalt mixer is met.

This paper briefly introduces how to improve the heating system of asphalt mixing station

　　In the working process of asphalt mixing station, the quality condition of the mixture will often be related to its final construction quality.
So we need to improve the quality level of its mixture as much as possible, and the temperature of the mixture is one of the criteria for the conformity assessment of the mixture.
In other words, if the temperature is too high or too low, it can cause the mixture to become scrap, can not meet the needs of only the use.

　 Moving and fixed asphalt mixing equipment have their own advantages, the planning of movable mode is easier to deal with, in the bottom of the box structure planning, greatly reducing the area of the area covered by the equipment.
Fixed asphalt mixture Mixing equipment covers a relatively large area, but its production of mobile phones do not replace.

Asphalt Mixing station Dust collector soot parameters are very complex, so the performance requirements of the bag dust collector is very important, the following we first look at how to choose asphalt concrete mixing station bag dust collector, and then we will study the determination of dust bag.

So what factors should we consider when making planning and building work? 1th, we must reasonably select the location of the asphalt mixing building.
Generally speaking, the location of the asphalt mixing building of the mobile asphalt mixing station should meet these requirements: 1, the selected site geology is relatively solid 2, should be appropriate to reduce the workload of site curing; 3. If it is required to build the cement concrete foundation of the mixing building foot, the bearing capacity of the concrete should be ensured to meet the design requirements.
　　　

After the location of the asphalt mixing station is selected, the next step is to make appropriate planning and construction work.
Under normal circumstances, the site planning of mobile asphalt mixing station should follow the two major requirements of science and rationality.
In other words, when planning, the utilization and effectiveness of the site should be maximized to the maximum extent possible to meet the requirements of production.

　　Therefore, reasonable control of the temperature of the mixture is one of the basic conditions that must be met in the normal production of asphalt mixing station.
Among them, how the quality of the fuel will affect the temperature of the mixture.
For example, if the quality of the fuel is poor, the calorific value is low, the combustion is not sufficient, then it will lead to unstable heating, low temperature, and after combustion will also produce a large number of residues, affecting the quality of the mixture.
And if the viscosity is large, then it will also cause ignition difficulties, temperature is not easy to control.

　　And if the amount of oil supplied is unstable, then it will also affect the level of temperature control.
Although there are now some mixing equipment with automatic temperature control function, but from the temperature detection to add and subtract flame regulation temperature still need a longer process, so there will be a lag, for the asphalt mixing plant production work will still have a certain impact.

　　1) for asphalt concrete mixing plant, the source of pollution is usually mixed, single column hydraulic Press to design a dust removal system.
The dust removal process adopts the two-stage dust removal method of the cyclone (or inertial) Precipitator and the bag-type dust collector, and the front cyclone Precipitator captures the coarse dust and the hot Mars as the aggregate recycling, the rear bag type dust collector captures the particulate dust and purifies the harmful gas, and the dust is collected as the mineral powder and recycled by the mixer.
Level two can be combined as one.

　　In addition to the above two factors, the water content of raw materials is also an important factor that can not be ignored.
If the water content of raw materials is high, then it is very difficult to control the temperature in the production process of asphalt mixing station.
In addition, the technical status of the combustion system, the pressure of the fuel pump, as well as the size of the injection, will affect the temperature of the mixture.
If there is a problem with wear, leakage, or blockage in the combustion system, the performance of the system will be reduced.

　　2) aggregate drying flue gas and asphalt mixing flue gas should be mixed early before the pre-precipitator, using lime powder and aggregate adsorption of asphalt tar.
Bag Type dust collector before the installation of emergency wild air valve and temperature control alarm device.

Secondly, in the construction of mobile asphalt mixing station, should be combined with the actual, the selection of suitable stacking field.
Specifically, the stacking field should be reasonably divided by reference to the variety requirements of different asphalt concrete mixing materials.
In the planning process, we must pay attention to, should meet the interval requirements at the same time, to meet the requirements of different varieties.
Moreover, for different stacking areas should also be properly isolated, and do a good mark, so as not to stack chaos, resulting in work efficiency is affected.
In addition, the foundation of the stacking area should be cured to meet the needs of the work.