SU1247440A1 - Hydraulic strip of paper=making machine net portion - Google Patents

Description

. This invention relates to the design of the paper part of a paper machine and can be used in pulp and paper industry.

The purpose of the invention is to increase the quality of the cast sheet due to the uniform distribution of fibers in the structure of the sheet.

FIG. 1 shows a hydroplane general view, in a perspective view; figure 2 is the same. front view; in fig. 3 - the same, with the hydroplatis on the front face of the grooves, made with a counter-slope.

Hydropod: ha11k contains body 1, having clone 2 and horizontal 3 areas, front face 4 with grooves 5, D) located at an angle to the front working edge 6.

In addition, the grooves 5 can be made with an opposite inclination from the center of the hydroplane to its edges.

G ptroplanka works as follows (zbrazom.

The grid of the paper machine passes over section 3. The working edge 6 removes a layer of netting water, the jets of which are reflected 5T by the front edge 4. 1 Alshi-1e. the grooves 5 provide for the separation of the jets into two directions - descending and diving, and, ul, water streams, 1-Shs}: one ci water drifts pass along the grooves 5 downwards, the rising water flows but on the sides 5 upwards and the impact of the molded web creates a nulsaggy pressure of n-1. Since the grooves 5 are made at an angle to ra247440 2

and the rising edge 6, then the ascending water FLOWS move along them under the same ANGLE; and the pressure pulsations created affect the cast

5 in the transverse direction at an angle equal to the angle of inclination of the grooves 5 to the working edge 6, which leads to disorientation of the fibers and provides dispersion of the fibers in the molded section, thus increasing the uniformity of distribution of the fibers in the structure of the cast sheet.

The pressure pulses created in the grooves 5 (made with an encounter inclination), directed at an angle equal to the angle of inclination of the grooves 5, affect the flute from both edges of the net to its middle, thereby preventing the

20 cloths from the middle of the mesh to its edges, thus ensuring uniform distribution of the p9 in the transverse direction, disorientation and dispersion of the fibers, which leads to

25 uniform distribution of fibers in the structure of the fabric and but its quality.

The use of the invention makes it possible, by increasing the uniformity of the distribution of fibers in the sheet metal structure of Bb, to produce products with a net mass of m. Reduced mass; 1 m of manufactured products is one of the most important areas of 2J production efficiency, as it allows to save defiditious crawling fabricated products and materials and materials used in the production of paper ::.

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Editor T., Parfenova

Techred G Gerber

Order 4083/27.

Circulation 3.55

VNIIPI State Committee, USSR

on inventions and opened 4Y 113035, Moscow, Zh-35., Raushsk T5ab, ,, d.

Production and graphic enterprise,

Corrector

Reshetnik

Subscription

i / 5

Uzhgorod, Project, 4

Claims (2)

1. HYDROPLANE OF THE NETWORK OF A PAPER MACHINE, comprising a body with an inclined section and a horizontal section forming a working edge with a front face, characterized in that, in order to improve the quality of the cast fabric due to the uniform distribution of fibers in the fabric structure, on the front face of the body are made grooves located obliquely to the working edge. 2. Hydroplank according to claim I, which is characterized in that the grooves are made with a counter inclination from the middle of the working edge to its ends. 1247440 A1 t