Concrete mixing tank is a kind of mixing tank widely used in coating, medicine, building materials, chemical industry, pigment, resin, food, scientific research and other industries. The equipment can set up heating or cooling device according to the process of the user's product to meet different process and production needs. The mixing shaft of concrete mixing tank is usually driven by motor. Because the speed of the mixing equipment is generally low, the motor is mostly combined with the transmission, and sometimes the frequency converter is used for direct speed regulation. Today, Xiaobian will give you a detailed explanation of how the mixing shaft of concrete mixing tank works.
混凝土搅拌罐的传动装配包含电念头、变速器、联轴器、轴承及机架等。此中搅拌驱念头构凡是接纳电念头和变速器的组合或选用带变频器的机电，使搅拌到达须要的转速。
The driving device of concrete mixing tank includes motor, transmission, coupling, bearing and frame. The mixing drive mechanism usually adopts the combination of motor and transmission or the motor with frequency converter to make the mixing reach the required speed.
混凝土搅拌罐电念头输入的能源是经由进程搅拌轴通报给搅拌器的，是以搅拌轴必须有充足的强度。同时，搅拌轴既要与搅拌器毗连，又要穿过轴封装配和轴承、联轴器等整机，以是搅拌轴还应有公道的布局、较高的加工精度和共同公役。按支承环境，搅拌轴可分为悬臂式和单跨式。悬臂式搅拌轴在搅拌装备外部不设置中心轴承或底轴承，是以掩护检验便利，出格对干净度请求较高的生物、食物或药品搅拌装备，削减了装备内的构件，故应优先选用。 内构件 包含挡板、盘管、导流筒、气体散布器等。
The output power of the motor of the concrete mixing tank is transmitted to the mixer through the mixing shaft, so the mixing shaft must have enough strength. At the same time, the mixing shaft should not only connect with the agitator, but also pass through the shaft seal device, bearing, coupling and other parts, so the mixing shaft should also have reasonable structure, high machining accuracy and fit tolerance. According to the supporting conditions, the mixing shaft can be divided into cantilever type and single span type. Cantilevered mixing shaft is not provided with middle bearing or bottom bearing in the mixing equipment, so it is convenient for maintenance and repair. Especially for biological, food or drug mixing equipment with high cleanliness requirements, the components in the equipment are reduced, so it should be preferred. The internal components include baffle, coil, draft tube, gas distributor, etc.
为消弭搅拌容器内液体的打旋景象，使被搅拌的液体高低翻滚而到达平均的夹杂，凡是须要再搅拌容器内加挡板。凡是挡板的宽度约为容器内直径的1/12～1/10，此中装备内的附件如温度计、传热蛇管或各类撑持体也能够起到必然的挡板感化的，但常常达不到“全挡板前提”。凡是增添挡板数计其宽度，功率耗损也会增添，但增添到必然值今后，功率耗损就不会再增添，此时的工况就称为“全挡板前提”。
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".
在搅拌容器内，流体可沿各个标的目的流向搅拌器，流体的路程是非不一，在须要节制回流的速率和标的目的，用于肯定某一流况时可利用导流筒。导流筒是高低启齿的圆筒，装配在容器内，在搅拌夹杂中起导流感化，既可进步容器内流体的搅拌水平，搅拌罐增强搅拌器对流体的间接剪切感化，又形成必然的轮回流，使容器内流体都可经由进程导流筒内激烈夹杂区，进步夹杂效力。装配导流筒后，限制了轮回途径，削减了流体短路的机遇。导流筒首要用于推动式、螺杆式和涡轮式搅拌器的导流。
In the stirred vessel, the fluid can flow to the agitator in all directions, and the length of the fluid stroke is different. When it is necessary to control the speed and direction of the reflux, the guide tube can be used to determine a first-class condition. The guide cylinder is a cylinder with upper and lower openings, which is installed in the container and plays a guiding role in the mixing process. It can not only improve the mixing degree of the fluid in the container, but also strengthen the direct shear effect of the agitator on the fluid in the mixing tank, and create a certain circulation flow, so that the fluid in the container can pass through the strong mixing area in the guide cylinder 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.