In order to eliminate the swirling phenomenon of the liquid in the stirred vessel and make the stirred liquid churn up and down to achieve uniform mixing, it is usually necessary to add a baffle in the stirred vessel. Generally, the width of the baffle is about 1 / 12 ~ 1 / 10 of the inner diameter of the vessel, and the accessories in the equipment, such as thermometer, heat transfer coil or various supports, can also play a role of baffle, but often can not reach the "full baffle condition". Generally, the power consumption will increase with the increase of baffle width, but when it reaches a certain value, the power consumption will not increase again. The working condition at this time is called "full baffle condition".
在混凝土搅拌罐容器内,流体可沿各个方向流向搅拌器,流体的行程长短不一,在需要控制回流的速度和方向,用于确定某况时可使用导流筒。导流筒是上下开口的圆筒,安装在容器内,在搅拌混合中起导流作用,既可提高容器内流体的搅拌程度,加强搅拌器对流体的直接剪切作用,又造成一定的循环流,使容器内流体均可通过导流筒内强烈混合区,提高混合效率。安装导流筒后,限定了循环路径,减少了流体短路的机会。导流筒主要用于推进式、螺杆式以及涡轮式搅拌器的导流。
In the concrete mixing tank, the fluid can flow to the mixer in all directions, and the length of the fluid stroke is different. When it is necessary to control the speed and direction of the return flow, the guide tube can be used to determine a first-class condition. The draft tube is a cylinder with upper and lower openings, which is installed in the container and plays a guiding role in mixing. It can not only improve the mixing degree of the fluid in the container, strengthen the direct shear effect of the agitator on the fluid, but also create a certain circulation flow, so that the fluid in the container can pass through the strong mixing area in the draft tube and improve the mixing efficiency. After installing the draft tube, the circulation path is limited and the chance of fluid short circuit is reduced. The draft tube is mainly used for the diversion of propelling, screw and turbine agitators.
传动装置的作用是使搅拌轴以所需的转速转动,并保证搅拌轴获得所需的扭矩。在大多数搅拌设备中,搅拌轴只有一根,且搅拌器以恒定的速度向一个方向旋转。然而也有一些特殊的搅拌设备,为获得更佳的混合效果,可以在一个搅拌设备内使用两根搅拌轴,并让搅拌器进行的复杂的运动,如往复动式、往复式、行星式等。
The function of the transmission device is to make the mixing shaft rotate at the required speed and ensure the mixing shaft to obtain the required torque. In most mixing equipment, there is only one mixing shaft, and the agitator rotates in one direction at a constant speed. However, there are also some special mixing equipment, in order to obtain better mixing effect, two mixing shafts can be used in one mixing equipment, and the complex movement of the mixer can be carried out, such as reciprocating, reciprocating, planetary and so on.
再来说说程序问题,卸料的时候要盯着,不要图省事放手不管,很多放料工会趁司机不在的时候乱操作放料操作杆,再者自己在旁边盯着,也可以保证正常的操作,不对罐体、减速机、托轮等造成伤害。跟周围的放料工、工头、工人都搞好关系,毕竟熟人好办事。走的时候别忘了找负责人签字,这一点很重要,不签的话,就意味着你这一趟白干了。
Let's talk about the procedure. When unloading, you should keep an eye on it. Don't try to save trouble and let it go. Many discharging unions operate the discharging lever while the driver is away. Besides, they can keep an eye on it to ensure normal operation without causing damage to the tank, reducer and supporting wheel. Keep a good relationship with the stocklayer, foreman and workers around. After all, acquaintances are easy to handle affairs. Don't forget to ask the person in charge to sign when you leave at last. This is very important. If you don't sign, it means that you have done nothing.