What are the salient features of asphalt mixing equipment in terms of technology

Asphalt mixer Commutator valve failure is not complex, that is, the conversion is not timely, gas leakage, electromagnetic pilot valve failure and so on, the corresponding reasons and solutions are of course different.
In order to change the commutative valve is not timely phenomenon, generally because of poor smoothness, spring jammed or damaged, oil or impurities stuck in the sliding part, etc., it is necessary to check the status of the oil mist, lubricating oil viscosity, the need to replace lubricating oil or other parts.

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After a long period of use, the commutator valve is prone to valve core seal ring wear, stem and seat damage phenomenon, resulting in gas leakage in the valve.
At this point, the seal ring, stem and seat should be replaced, or the commutator valve should be changed directly for new.
In order to reduce the failure rate of asphalt mixer, usually also need to strengthen maintenance.

　　Based on the relevant practical experience, this paper summarizes and analyzes the related causes of the fault of the mixing station, and puts forward the relevant solutions of the boiler principle.
There are many reasons for equipment failure, this paper mainly expounds some of the main reasons, there are mainly the following aspects:

　　Aiming at the analysis of the common faults of intermittent mixing stations, in order to realize their more perfect, effective and reasonable performance in the actual work, any part of the fault treatment can not be ignored, nor can there be a focus on the phenomenon, only such a final product quality will be reasonable standards.
A good mixing station quality work operation, can effectively ensure the quality of the project, but also conducive to the reduction of costs and the improvement of construction efficiency.

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　　Asphalt mixing station workflow in the transport, drying, screening and other steps are carried out by one go, the middle can not be slightly stopped, in which the mixing of various materials, weighing and finished material process is cyclical.

　　The ratio of asphalt quality to sand filling quality in asphalt concrete is the ratio of oil and stone, as an important index to control the quality of asphalt concrete, the size of its value has a direct impact on the quality of asphalt concrete.
Stainless steel chain too small too large and stone ratio will cause serious quality accidents: too small oil and stone ratio will make concrete material divergence, rolling pressure does not take shape, too large oil and stone ratio will make the paving after rolling up the road "cake."

　　In the production of asphalt concrete process, the temperature has a very high requirements, can not be too high or too low, if the temperature is too high, it is easy to make asphalt production of "charred" phenomenon, if the temperature is too low will cause sand and Mobile Asphalt Plant adhesion between uneven, out of the finished product has no use value, and finally can only be discarded, The damage caused is impossible to estimate.

　　If the burner does not ignite properly when the mine is heated, it should be carried out according to the steps: (1) first check whether the ignition combustion conditions inside the operating room meet the relevant requirements, including blower, belt, electric fuel pump, drying drum, fan and other equipment power opening and through the situation, The starting condition is observed, and then the ignition position is checked to see if there is a fan door and the closure of the cold air gate, and whether the switch, the drying drum and the internal pressure detection instrument are in the manual position and the manual state.
(2) If the above factors do not affect the ignition situation, it should be checked for initial ignition, fuel conditions and fuel access congestion, and then check the burner ignition motor ignition, high-pressure packet combustion, if all are normal, in check whether the electrode has too much oil or excessive distance between the electrodes and other abnormal phenomena.
(3) If all of the above is normal, it should check the operation status of the fuel pump, at the same time check the outlet pressure of the pump oil, to detect whether it can meet the requirements and the closure of the compressed air valve.

Today, all production work is in line with environmental policies, and users are increasingly inclined to choose some environmentally friendly and energy-saving products.
Especially when we are building road works, the state also pays more and more attention to the environmental protection of asphalt mixing plant, among which the dust problem of asphalt mixing station construction site is one aspect that we pay more attention to.

　　There are several aspects to the fault of the cold feed Device: (1) If there is too little storage in the cold hopper, in the process of loading the loader will have a direct severity impact on the belt machine, and then cause it to produce overload phenomenon, forcing the variable speed belt machine shutdown, in order to solve this thought, It should always be guaranteed that there are enough granules in each cold hopper to provide; (2) If the variable speed belt motor produces a fault phenomenon in the course of operation will also cause the variable speed belt machine to shut down, in this case, first of all, should oh Check the motor control inverter, and then check whether the line is conductive or disconnected, If the above two aspects do not fail to occur, you should check the belt when there is skid run deviation and so on, if it is a belt problem, it should be adjusted to enable it to function properly; (3) variable speed belt machine dysfunction may also be caused by gravel or foreign body stuck under the cold material belt, In view of this situation, artificial obstacle removal should be carried out to ensure the operation of the Belt; (4) The corresponding control inverter fault in the control cabinet is also one of the reasons for the abnormal function of the variable speed belt machine, which should be overhauled or replaced, and (5) The abnormal downtime of each belt machine cannot be ruled out by the fact can be reset.