目前,纤维水泥制品行业,特别是采用抄取法、流浆法生产纤维水泥波瓦的生产工艺,使用的原材料主要包括水泥、纤维、纸浆及辅助材料,其中,水泥和纤维是发挥制品性能的核心材料,而纸浆是目前必不可少的减少成型裂纹的增塑材料,同时起到吸附水泥颗粒,减少水泥流失,降低回水浓度,有利生产闭路循环等作用,产品外观质量稳定。但由于纸浆的来源是水泥包装纸,在用有机复合袋大量取代纸包装,禁止木材砍伐的今天,纸浆的来源困难,成本上升,同时,纸浆中的杂物较多,在实施流浆法机组生产工艺时易堵塞送浆泵及其管道,流量变化大,料层不均匀,影响正常操作,也易造成瓦体损坏,渗透漏水,生产过程回料多,半成品率低。
At present, fiber cement products industry, especially the
production process using papermaking process and slurry produced by
fiber cement corrugated sheet, the raw materials used mainly including
cement, fiber, pulp and auxiliary materials, cement, fiber and core
materials play the performance of products, while the paper pulp is
essential to reduce the crack forming plasticized materials, at the same
time to the adsorption of the cement particles, reduce cement loss,
reduce backwater concentration, enabling the production of
closed-circuit circulation, the appearance of the product quality is
stable. But because the pulp is the source of cement packing paper,
using organic composite bags instead of large paper packaging, timber
logging ban today, sources of difficulties, rising costs at the same
time, pulp, pulp of sundries, easy to plug the pipeline in the pump and
send the implementation method of unit production process flow, the flow
rate changes, material the layer is not uniform, affect the normal
operation, but also easy to cause the tile body damage, penetration
Water Leakage, feed back more than half the production process, the low
rate of finished products.