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Asphalt Mixing Station General Problem Of Reversing Valve

AKW GROUP | Updated: Sep 11, 2017

Asphalt mixer shaker appears: no-load operation trip, once again start again the phenomenon of tripping. Replace the new thermal relay, the fault still exists. Check the contactor, the motor's phase resistance, grounding resistance, phase voltage, etc., did not find the problem; remove the transmission tape, start the vibrating screen, ammeter instructions for the normal value (10A), no load 30min there is no problem trip, Indicates that the fault is not in the electrical section. Install the transmission tape to restart the vibrating screen and find the eccentric block beating more violently.

Remove the eccentric block, start the vibrating screen, the ammeter shows 15A; the magnetic table fixed on the vibrating screen box board, with the needle to check the radial end of the runout, measured the maximum radial runout of 3.5mm; The maximum ellipticity of the bearing diameter is 0.32mm. Replace the vibrating screen bearings, install the eccentric block, restart the vibrating screen, ammeter instructions for the normal value (10A). No longer appear tripping.

Asphalt mixing plant, also known as asphalt concrete mixing plant, the equipment can produce asphalt mixture, modified asphalt mixture, color asphalt mixture, fully meet the construction of highways, grade roads, municipal roads, airports, ports and other needs.

Asphalt mixing plant components

Asphalt mixing equipment is mainly composed of batching system, drying system, combustion system, hot material lifting, vibrating screen, hot material storage warehouse, weighing mixing system, asphalt supply system, powder supply system, dust removal system, finished silo and control system Part of the composition.


(2) vibrating screen ⑶ belt feeder ⑷ powder conveyor ⑸ dry mixing drum; ⑹ pulverized coal burner ⑺ dust collector ⑻ hoist ⑼ finished silo ⑽ asphalt supply system; ⑾ distribution room ⑿ electrical control system.

Mobile asphalt mixing station Features:

1, the module design so that handling, installation more convenient and convenient;

2, stirring blade design unique to the very power-driven mixing tank makes mixing easier, more reliable and efficient;

3, the use of imported vibration motor driven vibrating screen, greatly improving the efficiency, but also reduces the failure rate of equipment;

4, bag dust placed in the drying state, placed above the drum to reduce heat loss, save space and fuel;

5, the bottom of the warehouse structure relative to the structure, thus greatly reducing the area occupied by the equipment, while eliminating the finished product lanes to enhance the space, reducing the equipment failure rate;

6, to enhance the aggregate and the use of double-row board to enhance the elevator to increase the service life and improve operational stability;

7, the use of dual automatic control computer / manual control system, with fault automatic diagnosis program is simple and safe.

Asphalt mixer also has a valve, the general situation will not be a problem, so before the meticulous understanding of its solution. But in the actual use of the time, but happens to encounter this problem, how to deal with it?

Asphalt mixer valve failure is not complicated, that is, the return is not timely, gas leakage, electromagnetic pilot valve failure, etc., the corresponding reasons and solutions are of course different. In order to change the direction of the valve is not timely, generally because of poor smooth, the spring was stuck or damaged, oil or impurities caught in sliding and other reasons caused by the need to check the state of the oil mist, Viscosity, if necessary, can replace the oil or other parts.

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