RU2536219C1 - Method of processing paper - Google Patents

Abstract

FIELD: textiles, paper.SUBSTANCE: paper is made from pulp containing wood fibre, to which the binder and clay is added, and then moulding to sheets is carried out, initially waste paper is sorted according to its classification, is then is loaded into an autoclave for dispersing, removing dirt, oil, typographic ink, and other foreign materials, then it is impregnated, bleached to form pulp. After the pulper the processed mass enters the column for wet processing where soaking is carried out. Then, feeding is carried out to a sieve, where the ejection of mud and foreign materials is carried out, after that flotation, then filtering, washing, dehydration and degreasing, and then the final processing by bleaching with the chemicals release, and the column for wet processing is made from the housing with the inlet pipe for loading pulp and the outlet pipe for discharging the wetted product to the sieve, which is made in the form of the conveyor belt, and inside the housing the perforated inclined cylinder is mounted for the process of pulp humidification with nozzles located on its lateral surface, connected to the collector of water supply. In the lower part of the perforated inclined cylinder the spring-loaded valves are mounted for automatic discharge of the final product on the sieve.EFFECT: increased productivity and quality.5 dwg

Description

The invention relates to installations for paper recycling.

It is known that the CC workers put all paper waste in small containers, from which they then go to the main container, conveniently located with the CC, from where all the waste is sent to waste paper processing enterprises (RF patent No. 2485234 - prototype).

A disadvantage of the known scheme is the relatively low productivity and quality.

The technical result is an increase in productivity and quality.

This is achieved by the fact that the paper processing method, namely, that the paper is made from pulp containing wood fiber, to which a binder and clay are added, and then formed into sheets, the waste paper is initially sorted according to its classification, then loaded into an autoclave for dispersion, removal of dirt, oil, printing ink and other foreign materials, then it is impregnated, bleached in order to form a pulp, then it enters the column for wet processing, where soaking is carried out, then on a sieve, where dirt and foreign material are ejected, then flotation, filtering, washing, dehydration and degreasing, after which final processing by bleaching with the release of chemicals, and the wet processing column is carried out from the body with an inlet for loading pulp and an outlet pipe for unloading the moistened product on a sieve, which is performed in the form of a conveyor belt, and a perforated inclined cylinder is installed inside the housing for the process is moistened I pulp located on the side surface of nozzles connected to a water supply manifold, with the bottom of perforated cylinder mounted inclined spring-loaded valve for automatic discharge of the final product on the sieve.

Figure 1 shows a schematic diagram of an installation for implementing the method, figure 2 is a structural diagram of a pulper with a blade activator, figure 3 and 4 are embodiments of a paddle activator, figure 5 is a diagram of a wet processing column.

The paper processing plant includes classification blocks, an autoclave for dispersing, a block for removing dirt, oil, printing ink and other foreign materials, as well as blocks where it is impregnated, bleached in order to form a pulp. After the pulper, the processed mass enters the wet treatment column, where it is soaked. Then it is fed to a sieve where dirt and foreign material are ejected, then flotation, then filtration, washing, dehydration and degreasing, followed by final treatment by bleaching with the release of chemicals.

Pulper 3 (FIG. 2), in which the paper is mixed with water by means of a paddle activator (FIGS. 3 and 4), is a container, for example, with a horizontal axis of arrangement of the blades of the activator, which is connected to a gearbox driven by an electric motor, on top of which there is hatch for loading waste paper. The paddle activator can be made in the form of at least two screw propellers connected in series with at least two screw blades placed in a mesh drum (Fig. 3). A possible embodiment of the activator (Fig. 4) is in the form of a cone, on which side there are screw elements, and in the lower part of the conical surface there are cuts that abut the drum, the mesh part of which is perpendicular to the axis of the conical surface of the activator, the axis of which is also connected to drive mechanism.

The wet processing column (Fig. 5) consists of a housing 2 with an inlet pipe 1 for loading the pulp and an outlet pipe 8 for unloading the moistened product onto a sieve 9 made in the form of a conveyor belt 10. Inside the body 2, a perforated inclined cylinder 3 is installed for the process of moistening the pulp with nozzles 5 located on its lateral surface 4 connected to a water supply manifold 6. In the lower part of the perforated inclined cylinder 3, spring-loaded shutters 7 are installed for automatic unloading of the final product on the sieve 9.

A method of processing paper is as follows.

The paper is made from pulp containing wood fiber, into which a binder and clay are added, and then formed into sheets. Initially, waste paper is sorted according to its classification, then it is loaded into an autoclave for dispersing, removing dirt, oil, printing ink and other foreign materials, then it is impregnated, bleached to form a pulp, the processed mass enters the wet processing column, where it is soaked . Then it is fed to a sieve where dirt and foreign material are ejected, then flotation, then filtration, washing, dehydration and degreasing, followed by final treatment by bleaching with the release of chemicals.

Claims (1)

The method of processing paper, which consists in the fact that the paper is made from pulp containing wood fiber, to which a binder and clay are added, and then molded into sheets, while the waste paper is initially sorted according to its classification, then loaded into an autoclave for dispersion, removal dirt, oil, printing ink and other foreign materials, then it is impregnated, bleached in order to form a pulp, after the pulp, the processed mass enters the wet column shoes, where they are soaked, then fed to a sieve where dirt and foreign material are ejected, then flotation, then filtered, washed, dehydrated and degreased, followed by final processing by bleaching with the release of chemicals, and pulper, in which the paper is mixed with water by means of a paddle activator, is a tank with a horizontal axis of the arrangement of the blades of the activator, which is connected to the gearbox, driven by an electric motor, on top of the cat the swarm has a hatch for loading waste paper, while the paddle activator can be made in the form of at least two screw propellers connected in series with at least two screw blades placed in a mesh drum, characterized in that the wet processing column is made of a housing with an inlet a pipe for loading the pulp and an outlet pipe for unloading the moistened product on a sieve, which is performed in the form of a conveyor belt, and a perforated inclined cylinder is installed inside the casing for the process a pulp humidification system with nozzles located on its lateral surface and connected to a water supply manifold, while spring-loaded shutters are installed in the lower part of the perforated inclined cylinder to automatically discharge the final product onto a sieve.

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