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What is the pre-cooling project of concrete spreader?

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What is the pre-cooling project of concrete spreader?

Release time:2019-02-16 Author: Click:

The concrete distributor is the end device for pumping concrete, and its function is to pipe the pumped concrete into the formwork of the member to be poured. According to the different pouring environment and individual requirements of concrete construction, we have designed various models such as internal climbing, walking, ship-borne and manual, and formed the most complete HG series concrete distributing machine in the world. A synthetic motion consisting of a two-part turret covers all fabric points in the radius of the fabric

讲一下混凝土布料机的预冷工程是什么

For different raw materials, there may be one or more cooling methods, with direct and/or indirect cooling methods or techniques. Direct cooling means directly cooling the raw materials with refrigerant, mainly by vacuum, liquid nitrogen and flake ice, cold (cold) water mixing and other methods to directly cool the raw materials and their mixtures; indirect cooling means cooling the air and water and other coolants. The brine is then used to cool the raw material of the concrete spreader. In fact, in terms of simplicity, economy, efficiency, reliability and ease of operation, pre-cooling is mainly for the cooling of coarse aggregates and the preparation of cold water and ice. Whether it is pre-cooling or after-cooling, it is the process of cooling the concrete mixer. However, during the period from the pre-cooling of the concrete to the start of the post-cold cooling, it is the endothermic heating process of the concrete distributing machine. Although the process time is short, the amplitude is very large, and it is necessary to increase the magnitude of pre-cooling or post-cooling to compensate. Since the factors affecting pre-cooling and post-cold are extremely complicated, it is more dependent on the accumulation of actual experience and the improvement of statistical data to analyze and study it. Pre-cooling is a method and a project that requires a series of equipment and facilities to guarantee, so it is called pre-cooling engineering. From the aspects of concrete temperature and aggregate cooling mechanism, the methods and equipments for pre-cooling such as air-cooling, water-cooling and ice-mixing are discussed. Some practical projects of cooling methods such as liquid nitrogen and vacuum are listed, and they are introduced as pre-cooling. After cooling, the cooling system provides cooling capacity.

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