Machine for producing a fibrous web with a suction device

Abstract

A machine for producing a fibrous web, comprising a wire section (1), a press section (2), and a suction device (3), wherein the wire section (1) comprises at least one wire (1.1), and wherein the press section (2) comprises a pick-up roll (2.2) and at least one felt (2.1), and wherein the pick-up roll (2.2) is arranged such that the wire (1.1) and the felt (2.1) form a gusset on the pick-up roll (2.2), and wherein the suction device (3) comprises a machine cross-channel with two ends (3.1), which is arranged inside the wire (1.1) and extends across the entire width of the wire (1.1), and wherein the suction device (3) comprises two ears, which are arranged at the two ends of the machine cross-channel (3.1) such that they direct air emerging laterally from the gusset towards the machine cross-channel (3.1). can redirect.

Claims

[1] Machine for producing a fibrous web comprising a wire section (1), a press section (2) and a suction device (3), wherein the wire section (1) comprises at least one wire (1.1), and wherein the press section (2) comprises a pick-up roll (2.2) and at least one felt (2.1), and wherein the pick-up roll (2.2) is arranged such that the wire (1.1) and the felt (2.1) form a gusset on the pick-up roll (2.2), and wherein the suction device (3) comprises a machine cross channel with two ends (3.1), which is arranged inside the wire (1.1) and runs over the entire width of the wire (1.1), and wherein the suction device (3) comprises two ears, which are arranged at the two ends of the machine cross channel (3.1) in such a way that they direct air emerging laterally from the gusset towards the machine cross channel (3.1) can be redirected. [2] Machine for producing a fibrous web according to claim 1, wherein at least the ear (3.2) which is arranged at the driver-side end of the machine transverse channel (3.1) is designed so that it can be removed or pivoted away. [3] Machine for producing a fibrous web according to claim 1 or 2, wherein the machine cross channel (3.1) comprises openings distributed over the machine width through which air can be sucked into the machine cross channel (3.1). [4] Machine for producing a fibrous web according to one of the preceding claims, wherein the cross-section of the machine transverse channel (3.1) is polygonal or round. [5] Machine for producing a fibrous web according to one of the preceding claims, wherein the ears (3.2) are equipped with moistening spray pipes.

Images