Dual-pressure waterproof roll material coating device

Abstract

The invention relates to the technical field of bituminous waterproof roll material production equipment and discloses a dual-pressure waterproof roll material coating device. The dual-pressure waterproof roll material coating device comprises a coating tank used for containing and / or receiving bitumen and a dual straight row extrusion forming mechanism arranged above the coating tank. The dual straight row extrusion forming mechanism comprises two pairs of extrusion rolls arranged in pairs, and the two pairs of extrusion rolls have heat and are spaced and used for the first upper extrusion roll and the first lower extrusion roll which are used for coarse pressing and the second upper extrusion roll and the second lower extrusion roll which are used for finish pressing. The rotating speedof the first upper extrusion roll is higher than that of the second upper extrusion roll. The dual-pressure waterproof roll material coating device is provided with the dual straight row extrusion forming mechanism, and each extrusion roll has heat; the dual-pressure waterproof roll material coating device further softens bitumen at the contact position to squeeze air and fill seams more rapidly to prevent generation of bubbles while conducting extrusion. Through combination of the coarse pressing process and the finish pressing process, the extrusion compactness and uniformity are improved. At least the first upper extrusion roll and the second upper extrusion roll are driven by different driving mechanisms, and the probability of deformation is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of asphalt waterproof coiled material production equipment, and more specifically, relates to a double-pressure waterproof coiled material coating device. Background technique [0002] Asphalt waterproofing membrane refers to a roll material made of asphalt material, tire material and anti-adhesive material spread on the surface, also known as linoleum, which is often used for pasting waterproof layers. Bitumen waterproofing membranes include tire membranes and tireless membranes. Any roll-shaped material made of thick paper or glass cloth, asbestos cloth, cotton and linen fabrics and other tire materials impregnated with petroleum asphalt is called tire-shaped roll material; asbestos, rubber powder, etc. are mixed into the asphalt material, and after rolling The resulting roll material is called a rolled roll, that is, a tireless roll. [0003] Modified asphalt waterproofing membrane is commonly known as ...

AI Technical Summary

Problems solved by technology

Two processes of pre-soaking and coating are required during production; the function of pre-soaking is to soak the asphalt used for pre-impregnation into the tire base fabric, so as to ensure that the tire base fabric can be completely soaked with asphalt, and to avoid water channeling and leakage of the finished product after it encounters water. Layering; on the one hand, coating is to achieve a certain thickness requirement, and more importantly, to finally obtain a tight and uniform waterproof membrane. However, the tightness and uniformity of the waterproof membrane produced by the existing coating device is not satisfactory, which affects waterproofing. Coil life

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