CO_2水玻璃砂吹气硬化装置的设计与制造

Design and Making About the Device of Curing Sodium Silicate Sand by Blowing Carbon Dioxide

介绍了一种CO2水玻璃砂吹气硬化装置的设计思路、制造特点和应用效果。该装置设计有气体分配器,可以将减压后的CO2气体均匀分配给各支气路,并可通过各自的截止阀控制各支气路的开通或关闭。各支气路联接到试验台上的各个吹气工位,每个工位上放置样筒、辅助加砂筒与砂样的组合体,该组合体都用定位筒给予定位和固定,用胶塞和毡垫给予密封,确保CO2气体只能从砂样中通过。试验台上共设计有8个吹气工位,可以同时吹制1～8个砂样。在测试型砂性能时,从混砂、制样到吹气硬化,条件相同,测试数据稳定性好。该吹气硬化装置已成功用于吹制直径30 mm、高50 mm的标准圆柱形砂样,取得了较理想的试验结果。

A progress of designing and making about the device that is used for curing sodium silicate sand by blowing carbon dioxide was introduced. A distributor is installed on the device which make carbon dioxide of every pipeline branch well-distributed. Every branch linked to corresponding work position on the test bed has respective valve which is used for making the pipeline open or close. Every assembly made of a cylinder with sand sample and auxiliary cylinder for adding sand was set on every work position, which is firmed and sealed up by another cylinder with felt pads to prevent carbon dioxide to leak out. There are eight work positions on the test bed and eight samples can be blown and cured simultaneously, so the data of testing sand prosperities are steady. Standard cylinder samples that has a diameter of 30 mm and a height of 50 mm were made successfully using the above-mentioned device.