公开(公告)号：WO1997042374A1

公开(公告)日：1997-11-13

申请号：PCT/US1997003146

申请日：1997-02-19

Applicant: BELOIT TECHNOLOGIES, INC.

Inventor： BELOIT TECHNOLOGIES, INC. ,  SANTOS, Gilmar ,  REMPEL, Cornelius, N.

IPC: D21F09/00

CPC classification number: D21F9/003

Abstract: In a twin wire former (20) a headbox (30) injects stock onto a forming wire (22) with which a second forming wire (24) is brought into gradual engagement. A forming shoe (40) directs the two wires along a path of increasing curvature, above which water is drained by adjustable auto slices (44, 46). The two wires (22, 24) with the web (34) therebetween then follow an oscillating S-shaped path between seven S-rolls (52) and are directed upwardly through three individually loaded press rolls (58) with increasing pressure to about four hundred and fifty pounds per linear inch at the last wet press. Drainage pans (83) collect water from the upper surface of the twin wires and water thrown off the upper press rolls. The press rolls are individually pneumatically pivotable to increase nip pressure, and collectively pivotable to open all the nips. Next a high pressure dry nip (80) can increase the fiber content of the web (34) to thirty-five percent fiber.

Abstract translation: 在双网成形器（20）中，流浆箱（30）将原料注入到成形网（22）上，使第二成形线（24）逐渐接合。 成形靴（40）沿着曲率增大的路径引导两条导线，在此之上通过可调整的自动切片（44,46）排出水。 其间具有腹板（34）的两根线（22,24）之间沿着七个S形辊（52）之间的振荡S形路径，并且以增加的压力向上指向三个单独加载的压榨辊（58）至约四个 在最后一次湿压机上每线性英寸有一百五十磅。 排水盘（83）从双电线的上表面收集水，并从上压辊上取出水。 压辊单独地可气动地枢转以增加压区压力，并且可共同地枢转以打开所有的压力。 接下来，高压干燥辊隙（80）可将纤维网（34）的纤维含量增加至35％的纤维。