Concrete fine aggregate cooling device
A technology of cooling device and fine aggregate, applied in clay preparation device, mixing operation control device, mixing operation control and other directions, can solve the problem that it is difficult to meet the requirements of mass concrete production, increase the risk of pre-cooling device, and the flow of fine aggregate Slow speed and other problems, to achieve the effect of low production cost, easy operation and high cooling efficiency
Inactive Publication Date: 2017-08-01
SINOHYDRO BUREAU 8 CO LTD
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Problems solved by technology
Liquid ammonia is a highly toxic chemical substance that is volatile and has a strong pungent smell, which greatly increases the danger of the pre-cooling device
[0005] In the prior art, the cooling of fine aggregate mainly includes liquid nitrogen vacuum cooling and cooling water pipes buried in the fine aggregate pile. The former is easy to freeze into blocks, and the latter is slow due to the slow flow of fine aggregate in the pile. , so the cooling efficiency is low, and it is difficult to meet the requirements of mass concrete production
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[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] figure 1 with figure 2 An embodiment of the concrete fine aggregate cooling device of the present invention is shown. The concrete fine aggregate cooling device of this embodiment includes a feed hopper 1, a cooling silo 2 and a discharge hopper 3, and the feed hopper 1 is connected to the cooling The upper end of the silo 2, the discharge hopper 3 is connected to the lower end of the cooling silo 2, the lower part of the side wall of the cooling silo 2 is provided with a liquid inlet chamber 4, the upper part of the side wall of the cooling silo 2 is provided with a liquid outlet chamber 5, and the concrete fine aggregate cooling device It also includes a cooling pipe assembly, which is located inside the cooling silo 2 and connected between the liquid inlet chamber 4 and the liquid outlet chamber 5. When working, the fine a...
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The invention discloses a concrete fine aggregate cooling device which comprises a feeding hopper, a cooling bin and a discharging hopper. The feeding hopper is connected to the upper end of the cooling bin. The discharging hopper is connected to the lower end of the cooling bin. A liquid inlet cavity is formed in the lower portion of the side wall of the cooling bin. A liquid outlet cavity is formed in the upper portion of the side wall of the cooling bin. The concrete fine aggregate cooling device further comprises a cooling pipe assembly which is located inside the cooling bin and connected between the liquid inlet cavity and the liquid outlet cavity. The concrete fine aggregate cooling device has the advantages of being safe, reliable, high in cooling efficiency, low in energy consumption and the like.
Description
technical field [0001] The invention relates to the field of concrete production, in particular to a concrete fine aggregate cooling device. Background technique [0002] The so-called concrete pre-cooling is to cool the raw materials before concrete mixing, which is often used in the production of mass concrete. Concrete raw materials usually include coarse aggregate, sand (fine aggregate), cementitious materials (cement, coal ash, etc.), water, admixtures, etc. In the construction of large-scale concrete projects such as large-scale hydropower projects, the commonly used pre-cooling technologies mainly include aggregate air cooling, adding flake ice and cold water mixing. [0003] The "aggregate" referred to in "Aggregate Air Cooling" refers to coarse aggregate, and the aggregate air cooling needs to be equipped with an air-cooled silo, and the primary air-cooled silo has a large volume, high structural design requirements, long construction period and reinforced concrete...
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IPC IPC(8): B28C7/00
CPCB28C7/0038
Inventor李跃兴陈笠曾凡杜张鲲王希森刘菊红
OwnerSINOHYDRO BUREAU 8 CO LTD