SLJ**0 Bitumen Concrete Mixer is a new type of mobile bitumen mixer, which doesn’t own the specific advantages of simple structure, high efficacy and turning easily, and has its own generator, adopt electronic triggering.

This product used widely in roads, governments, airdromes and other road constructions. It is believed as ideal machinery in modern road constructions.

Specification Data

Structure and Working Principle

Our product mainly made up of burning system, tumbling cylinder system, bitumen system, dust removing system, chassis, and electronic controlling system, and etc.

Burning system

It is made up of diesel oil pump, blowing fan, electronic igniter system, diesel oil box, pipeline and etc. Button igniter use **0V alternating current through transformer produce ****0V high voltage, then produce electric spark by two electrode bars, the diesel oil pump will produce 1.0mpa high pressure oil and via electromagnetic valve to control oil pipe switch open or closed. Ignition and flameout:

1. Start diesel oil pump to observe whether diesel oil rise or not, spillover valve should adjust oil pressure to (1.**1.5mpa) If the oil pressure is wrong, must re-adjust the spillover valve and keep the pressure into the range.
2. Start the igniting (two electrode bars produce electric spark), open the oil tube switch (electrify the electromagnetic valve, then open the oil tube, to make the high-pressure diesel oil enter in.)
3. Observe the fire through the observe hole, to see whether ignition succeed or not, if ignition Ok, then start blowing fan, if ignition failed, stop the electromagnetic valve and diesel oil engine, after 3 minutes operate it again, this is very important.
4. When igniting, must stop the blowing fan, after igniting succeed, then re-start the blowing fan.
5. After finish a cycle work, must close the oil tube switch, cut off the electromagnetic valve power in order to avoid the diesel oil in when start the diesel oil pump.
6. When the oil has entered the cylinder could not ignition immediately, must remove the redundant oil through the dust blowing fan, further avoid when ignition happen "blaster" phenomenon.

Tumbling cylinder:

Tumbling cylinder is combined by cylindrical drum and tapered drum. Under with riding wheel and transmission system, material drying, and mixing are here finished, the leaves falling lift the hopper raise and down, all of the mineral formed like a curtain. Because all the leaves and cylinder welded into a helix angle make the mineral move forward and back, there are a couple of spiral leaves when cylinder reverse themselves, the mixing materials will be self-unloaded.

Bitumen system:

It consists of bitumen box, bitumen pump, electric motor, pipeline, and digital display time relay and etc., when pour hot bitumen into mixer cylinder. The quantity of mixing bitumen is controlled by time relay, which set up at a certain time to control the bitumen pump to stop at this time, when bitumen pump work to the set time, the power will cut off. This process can make sure the fixed quantity. In order to facilitate the construction of the asphalt road,there are five valves, respectively called: inner oil absorb port, outer oil absorb port, inner cylinder spray, hand spray gun, tank oil (this valve is on top of the oil tank)

a. When mix asphalt, open inner oil absorb port and inner cylinder spray valve, other valves closed, so that the oil can be poured into cylinder from oil box.

b. When hand spray gun works, open inner oil absorb port and hand spray gun valve, other valves closed, then we can use hand spray gun for ground spraying.

c. For cleaning asphalt pump, should open outer oil absorb port and hand spray gun valve, other valves need to be closed, then the asphalt pump will be cleaned by the cycle diesel oil.

d.Self-absorb during refuel oil (in actual use, the best is use other refueling ways, since the use of self-absorb function; asphalt pump will be easily bad). Open the " outer oil absorb port," and the " tank oil " two valves, valves remaining closed, in this way we can absorb the asphalt outside of the tank into the oil box

Ventilation and dust removing

There is dust collector cyclone on the back of cylinder, start draft fan, the dust into the cylinder will through exhaust flue and fall down, then will be discharged by draft fan to prevent pollute environment. At the same time all the dust pipeline through asphalt box, using waste heat for asphalt heat preservation.