-
Hammer and smash, or wind pickaxe.
-
I have a good way I have a paint that doesn't stick ** to me: 13608572784
-
How to coarse the concrete solidification in the tanker? How much does it cost to clean a rock potato?
-
1. Rinse the feed port with water before each loading, so that the feed port is kept moist during loading; 2. Fill the cleaning water tank with the vehicle with water at the same time as loading; 3. After loading, rinse the feed port and wash the remaining concrete near the feed port; 4. After unloading at the construction site, flush the discharge trough, and then add 30-40 l of cleaning water to the concrete storage tank; Keep the concrete storage tank rotating forward and slow when the vehicle returns; 5. Remember to discharge the sewage in the jujube concrete storage tank before the next loading; 6. Clean the concrete storage tank and around the inlet and outlet of the stool at the end of the day to ensure that there is no cement and concrete agglomeration.
-
Mixer truck operating procedures.
1. Before the mixer truck starts to work, first check whether there is enough clean hydraulic oil in the oil tank, hydraulic pump and motor, whether the water tank is filled with water, and whether there is enough lubricating oil in each lubrication part.
2. Start the car engine to run for a while, check the bad grip, and fill the gas storage cylinder.
3. Put the handle of the servo valve of the oil pump in the first position, and the stirring drum is in a stationary state at this time.
4. After everything is normal, the joystick makes the mixing drum rotate forward and backward 2 3 times at low speed to check whether the hydraulic transmission system is normal.
5. Drive the car to the feeding funnel of the mixing plant, so that the feeding hopper mouth of the car is aligned with the discharge funnel mouth of the mixing plant, so as to prevent the concrete from flowing to the outside of the vehicle and causing waste and polluting the car body.
6. Manipulate the handle to make the mixing drum rotate to 10 12r min, and then feed to the mixing drum.
7. When the material is loaded to the nominal agitation capacity, the handle controls the engine speed to 1800r min, so that the agitation speed of the mixing drum is 1 3r min, so that the engine speed is the minimum, and then lock the handle in the cab and drive the car to the delivery location. The maximum allowable time from the beginning of feeding to the completion of discharging is 300 revolutions per hour or 300 rotations of the mixing drum (whichever is shorter).
8. The vehicle should be fully loaded uphill to speed up the rotation speed of the mixing drum, 9. After the car arrives at the delivery location, turn the unloading chute and the lengthened chute to the position to be unloaded.
10. Before manipulating the handles on both sides of the tail of the vehicle, the cab should be untied to control the positioning locking plate in order to realize the forward and reverse operation of the tail of the mixing drum. The material is then discharged according to the speed required by the construction site.
11. After each discharge, the feed hopper, the inside and outside of the mixing drum, and the discharge chute must be cleaned to prevent the concrete from solidifying on the above parts.
12. Mixing concrete.
a. Inject one-half of the total water first;
b. Send one-half of the coarse aggregate, one-half of the sand, and all the cement into the mixing drum in turn, and then send the remaining one-half of the sand in;
c. Finally, the remaining half of the coarse aggregate is fed;
d. Stirring drum speed and stirring time.
The speed of the stirring drum when feeding: 12 14r min;
The speed of the stirring drum during stirring: 10 12r min;
Transport speed: 3 4r min;
E to the construction site to add half of the water, defeat Qing quickly stirred for 1 2min. (Note: When mixing concrete feeding, do not only feed cement; After mixing, the agitation and discharging methods are the same as those mentioned above. )
-
Summary. Control the direction of rotation of the stirring drum so that it rotates forward during feeding and transportation, and reverses when discharging. Control the speed of the mixing drum.
As long as the concrete collapse is more than 100mm, that is, the pump truck can pump and remove, I think it can be used. As for the time asked in this question, due to the huge difference in temperature between seasons and the loss of concrete slump, it is not practical to draw conclusions based solely on time.
In addition, during the period when the concrete is not poured, it has been stirring at low speed in the concrete transport vehicle, and the collapse degree of the concrete has a large and gradually smaller, which has a positive effect on improving the strength of the concrete. In layman's terms, if the concrete is out of the mixer, after waiting for a period of time, the slump becomes smaller, and the 28-day strength value measured by sampling the concrete specimen is higher than that measured by the specimen directly out of the mixer.
Concrete tanker, how to operate to release concrete?
Wait a minute, dear.
1.Control the direction of rotation of the mixing drum so that it rotates in the forward direction during feeding and transportation, and rotates in the opposite direction when discharging. 2.
Control the speed of the mixing drum. Only the rock crack should have a concrete collapse degree of more than 100mm, and the rock jujube mu can be pumped and removed, and I think it can be used.
Dear, I hope it can help you.
Control the direction of rotation of the mixing drum to make the beam rotate forward during feeding and transportation, and reverse rotation during discharge. Control the speed of the mixing drum. As long as the concrete collapse is more than 100mm, that is, the pump truck can pump and remove, I think it can be used.
As for the time asked in this question, due to the huge difference in temperature between seasons and the loss of concrete slump, it is not practical to draw conclusions based solely on time. In addition, during the period when the concrete is not poured, it has been stirred at low speed in the concrete transport vehicle, and the collapse degree of the concrete gradually becomes smaller, which has a positive effect on improving the strength of the concrete. In layman's terms, if the concrete is out of the mixer, after waiting for a period of time, the slump becomes smaller, and the 28-day strength value measured by sampling the concrete specimen is higher than that measured by the specimen directly out of the mixer.
Control the direction of rotation of the stirring drum so that it rotates forward during feeding and transportation, and reverses when discharging. Control the speed of the mixing drum.
Concrete. Surface enhancers are also known as liquid floors. >>>More
The mix ratio is calculated according to the strength grade. >>>More
1. Wetting the slump cylinder and bottom plate, there should be no open water on the inner wall of the slump cylinder and the bottom plate. >>>More
For the same number, you can be assessed together for what you poured on the same day. >>>More
The workability of concrete refers to whether the composition of the concrete mixture can be kept uniform, and whether it is easy to pour and vibrate during production and operation. >>>More