搅拌车运送混凝土时搅拌筒转速问题
搅拌车运输搅拌好的混凝土时，搅拌筒的转速为2-10转/分。在运输过程中，保证平路上的搅拌筒转速为2-3转。在侧倾坡度大于50的道路上行驶时，当路面左右晃动时，应停止搅拌和转动，待路况改善后再恢复搅拌和转动。
When the mixer truck transports the mixed concrete, the speed of the mixing drum is 2-10 rpm. During transportation, ensure that the speed of the mixing drum on the level road is 2-3 revolutions. When driving on a road with a side slope greater than 50, when the road shakes left and right, stop mixing and rotation, and resume mixing and rotation after the road condition improves.
混凝土搅拌车运输混凝土的时间不能超过搅拌站规定的时间。混凝土输送过程中，搅拌筒不得长时间停机，防止混凝土离析。司机应不时观察具体情况，发现异常及时向调度室报告，并申请处理。
The time of transporting concrete by concrete mixer truck shall not exceed the time specified by the mixing plant. During concrete transportation, the mixing drum shall not be shut down for a long time to prevent concrete segregation. The driver should observe the specific situation from time to time, report any abnormality to the dispatching room in time, and apply for handling.
搅拌车装满混凝土时，现场停留时间不得超过1小时。8、搅拌车输送的混凝土坍落度不得小于8cm。混凝土从入罐到卸出，高温时不得超过2小时，阴雨天气低温时不得超过2.5小时。
When the mixer truck is full of concrete, the stay time on site shall not exceed 1 hour. 8. The slump of concrete transported by mixer truck shall not be less than 8cm. The concrete shall not exceed 2 hours in high temperature and 2.5 hours in rainy weather and low temperature from entering the tank to discharging.
在怠速的情况下（发动机转速为600r/min），搅拌时间一般在4r/min左右，出料时间在6r/min左右。当发动机转速为1500～2000r/min加油时，液压泵和电机的机械效率很高。高，加料搅拌时10r/min左右，出料时12～14r/min。转速一般是可调的。通过调整各点的传递扭矩，可以提高或降低转速。搅拌速度过快，会影响液压系统的使用寿命。一般运输时的搅拌速度为3转/分。
At idle speed (engine speed is 600r/min), the mixing time is generally about 4r/min, and the discharging time is about 6R / min. When the engine speed is 1500 ~ 2000r/min, the mechanical efficiency of the hydraulic pump and motor is very high. High, about 10r/min when adding and stirring, and 12 ~ 14r/min when discharging. The speed is generally adjustable. By adjusting the transmission torque at each point, the speed can be increased or decreased. If the mixing speed is too fast, the service life of the hydraulic system will be affected. Generally, the mixing speed during transportation is 3 rpm.
此外，搅拌车装载混凝土时，在现场的停留时间不得超过1小时。搅拌车输送的混凝土坍落度不得小于5cm。混凝土从入罐到卸出，高温时不得超过2小时，阴雨天气低温时不得超过2.5小时。
In addition, when the mixer truck is loading concrete, the stay time on the site shall not exceed 1 hour. The slump of concrete transported by mixer truck shall not be less than 5cm. The concrete shall not exceed 2 hours in high temperature and 2.5 hours in rainy weather and low temperature from entering the tank to discharging.
搅拌车卸混凝土前，应使搅拌筒以10-12转/分的速度转动1分钟，然后卸料。
Before unloading concrete from the mixer truck, the mixing drum shall be rotated at the speed of 10-12 rpm for 1 minute, and then unloaded.
全自动搅拌车厂家认为，混凝土搅拌车卸料后，应立即用车载冲洗系统排干水，清洗进料口、卸料斗、卸料溜槽等剩余混凝土，然后浇注150-200L清水进入搅拌桶。回程时，让搅拌筒慢速转动，清理内壁，防止残留物料粘附在筒壁和搅拌叶片上。再次充电之前排干这些水。
The fully automatic mixer truck manufacturer believes that after the concrete mixer truck is unloaded, it should immediately drain the water with the on-board washing system, clean the feed inlet, discharge hopper, discharge chute and other residual concrete, and then pour 150-200l of clean water into the mixing drum. When returning, let the mixing drum rotate slowly and clean the inner wall to prevent residual materials from adhering to the drum wall and mixing blades. Drain the water before recharging.
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