How the stirring power of asphalt mixing equipment is accurately measured

Asphalt mixing equipment Stirring speed is indeed very fast, the corresponding stirring power is certainly very high, but the specific amount must be measured in a certain way, so as to determine the use of asphalt mixing equipment range.
There are also many methods to measure the stirring power of asphalt mixing equipment, but the relative error is smaller than that of electric motor reverse torque measurement and strain measurement method.

　　From the grounding standard of power supply, if the power supply adopts TT format, the metal frame of the mixing station and the electrical cabinet shell of the control room shall be protected by reliable grounding when installing the mixing station.
If the power supply using TN-C system, we install the mixing station when the metal frame of the mixing station and the control room of the electrical cabinet shell reliably grounded and reliably connected to zero, so on the one hand to achieve the mixing station can be conductive frame protection zero, but also to achieve the mixing station electrical system 0 line of repeated grounding.
If the power supply is in the tn-s (or tn-c-s) format, we install the mixing station when the metal frame of the mixing station and the control room of the electrical cabinet shell can be reliably connected to the protection line of the power supply on it.
Regardless of the type of power supply, the grounding resistance of the connection site must not be greater than 4 Omega.

According to the conversion relationship between torque and tangent strain, the torque value of the mixing shaft can be easily obtained after data processing, and then the friction torque of the seal, bearing and so on, which is measured by the no-load experiment, is the amount of torque actually consumed by the asphalt mixing equipment during the stirring process.

So, under this new situation, China's asphalt mixing station equipment in the face of export problems should be taken what measures? For this problem, we have to upgrade the technical level, expand the scale of production, the other side also needs to retrofit the asphalt mixing station equipment heating system, effectively improve the market competitiveness of products.

　　Mixing station electrical system includes strong electricity, weak power, AC, DC, digital signal, analog signal, in order to ensure that these electrical signals can be effective and reliable transmission, so that the control unit or electrical components timely output of the correct control signal, and can reliably drive the implementation components, the electrical circuit connection is reliable has a great impact.
Therefore, in the installation process must be to achieve the connection between the wiring reliable and electrical components of the installation of fastening.

Specific measurement, it is necessary to first 4 pieces of resistance wire strain gauge in the direction of 45° with the axis, symmetrically pasted on the stirring shaft, and make it composed of a bridge.
When the shear deformation of the mixing shaft of Asphalt Batch Mix Plant mixing equipment occurs under the action of torque, the length and cross section of the resistance wire on the strain sheet also change accordingly.

Due to raw materials or the use of methods, asphalt mixer in the usual application process will be more than a certain degree of wear and tear, if not timely control or repair, once with air, rain and other long touch may attack corrosion.
If the asphalt mixer parts corrosion is severe, the service life and normal operation of all equipment will be affected.

In order to avoid the attack of the above scene, can be used in the manufacture of a contrasting section of the filter, but also can use immersion, quenching and other methods to improve the hardness of the parts, as well as in the design of parts shape, but also to think about the role of cutting friction planning level.

First, we need to have a simple understanding of what are the constraints.
As far as the present situation is concerned, it mainly includes two aspects, the first is that most mechanical products, including asphalt mixing station equipment, have already declined by 4% in terms of export rebate rate, so this will affect the competitiveness of enterprises to a certain extent.
The second problem is that the industry's current technical content is not high, and exports are basically some of the low-end products, so this is also a very important constraint.

　　The main control units of asphalt station generally use industrial computer or PLC (Programmable logic Controller), their control process is basically internal circuit detection to meet a certain logical relationship of the electrical input signal, timely output of electrical signals in line with a certain logical relationship to drive relays or other electrical units or components.
These relatively sophisticated parts work is generally relatively reliable, if the operation or commissioning of the failure, first check whether the relevant input signal are all entered in place, and then check the requirements of the outgoing output signal are not, whether the output according to logical requirements.
In general, as long as the input signal is effective and reliable, to meet the logical requirements, the output signal will be in accordance with the internal program design requirements output, unless the wiring head (wiring plug) loose or related to these control units of the peripheral parts and lines have faults.
Of course, in individual special cases, there may also be damage to the internal components of the unit or a circuit board failure.