HZS50 concrete mixing station parameters

The concrete mixing station
is mainly composed of large systems such as the mixing host, material weighing system, material conveying system, material storage system and control system, and other ancillary facilities.
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The mixing host is divided into forced mixing and self-falling mixing according to its mixing method. Forced mixers are currently the mainstream used in mixing stations at home and abroad. They can mix a variety of concrete such as fluid, semi-dry hard and dry hard concrete. The self-falling mixing host mainly mixes fluid concrete and is rarely used in mixing plants at present. Forced mixers are divided into spindle planetary mixers, single-shaft mixers and twin-shaft mixers according to their structural forms. Among them, the twin-shaft forced mixer has the best overall performance.
The material weighing system is a key component that affects the quality of concrete and the cost of concrete production. It is mainly divided into three parts: aggregate weighing, powder weighing and liquid weighing. Under normal circumstances, mixing stations with less than cubic meters per hour adopt the superposition weighing method, that is, one scale is used for aggregate sand and gravel, one scale is used for cement and fly ash, water and liquid admixtures are weighed separately, and then the liquid is weighed The admixtures are put into the water weighing hopper and mixed in advance. In mixing stations with more than cubic meters per hour, each material is weighed independently, and all weighings are controlled by electronic scales and microcomputers. The weighing accuracy of aggregates, cement powder, water and admixtures all reach
Material transportation consists of three parts
1. Aggregate transportation. Currently, there are two types of mixing station transportation: hopper transportation and belt transportation. Way. The advantage of the hopper lift is that it occupies a small area and has a simple structure. The advantages of belt conveying are large conveying distance, high efficiency and low failure rate. Belt conveying is mainly suitable for mixing stations with temporary aggregate storage bins, thereby improving the productivity of the mixing station. 2. The powder materials available for conveying concrete are mainly cement fly ash and mineral powder. At present, the commonly used powder transportation method is screw conveyor transportation, and large mixing buildings use pneumatic transportation and scraper transportation. The advantage of screw conveying is simple structure, low cost and reliable use.
Three-liquid transportation mainly refers to water and liquid admixtures, which are transported by water pumps respectively.
The materials available for concrete storage are basically the same. Aggregates are stacked in the open air and powders are stored in fully enclosed steel structure silos. Admixtures are stored in steel structure containers. The control system of the mixing station is the central nervous system of the entire equipment. The control system has different functions and configurations according to the different requirements of users and the size of the mixing station. Generally, the control systems of small mixing stations available at construction sites are simpler, while the systems of large mixing stations are relatively complex.
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