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国家建材局、建设部、农业部、国家土地管理局近期联合发布了一些政策和法规。要严格控制实心砖生产,扩大空心砖生产。粘土砖空心化是当前墙体改革的方向之一,对现有砖瓦厂进行技术改造,转产空心砖是调整我国墙体产品结构最现实、最经济、效益最好的途径。在原有基本设备和设施,如轮窑、皮带机、粗碎对辊机、切条机和切坯机以及配电设备的基础上,增加一套生产空心砖关键设备即可,如一台高速耐磨细碎对辊机,一台高速双轴搅拌挤出机,一台双级真空挤出机及配套的空心机和真空泵,就可实现转产,
The National Building Materials Bureau, the Ministry of Construction, the Ministry of Agriculture, and the National Land Administration Bureau recently issued a number of policies and regulations. We must strictly control the production of solid bricks and expand the production of hollow bricks. The hollowing out of clay bricks is one of the current reforms of the wall. The technical renovation of the existing brickyards and the conversion of hollow bricks are the most realistic, economical and effective ways to adjust the product structure of the wall in China. Based on the original basic equipment and facilities, such as wheel kiln, belt conveyor, coarse crusher, cutting machine and cutting machine, and distribution equipment, a key equipment for producing hollow bricks can be added, such as a high-speed wearable. Fine crushing roller, a high-speed biaxial mixing extruder, a two-stage vacuum extruder and supporting hollow machine and vacuum pump can realize the conversion.