SU34269A1 - A trap for trapping fiber and fillers from paper waste - Google Patents

Description

The proposed trap is designed to trap fiber and fill gels from paper waste. Thanks to the use of special shelves, the entire sediment mass is divided into parallel thin layers; fiber or particles of kaolin, settled, pass through the same shelves a very short way, and not the full depth of the settling tank, as in other systems.

This separation of the liquid into thin layers greatly reduces the time for water clarification in comparison with other traps, i.e., increases the capacity of the device with the same volume, or with the same capacity and the same volume, a more complete water clarification is obtained, and, consequently, more complete trapping of particles suspended in it. Ultimately, all this should contribute to greater fiber savings in paper making and less river pollution.

In drawing FIG. 1 shows a longitudinal section of a trap; FIG. 2 is a view from above; FIG. 3 is a section along line AB in FIG. one; FIG. 4, 5 and b-parts.

The proposed trap (Figures 1-3) is a rectangular settling tank with a bottom inclined at 60 ° to the middle and having a trapezoidal shape in cross section;

i) 2)

parallel to its side planes, flanges 4, inclined toward the middle, are spaced apart from each other by 200 mm. By these shelves, the mass in the settling tank is divided into parallel thin layers. Shelves 4 are made up of individual planks, loosely inserted into quarters on the outer wall and supported by other ends on bars attached to the middle posts. In order to avoid the floating of the boards to their lower ends, the bends of the plank 5 (fig. 4), which are hooked by their four ends of the bar, are knocked down. To the upper ends of the boards are attached strips 6 (Fig. 5). With a thorough cleaning trap boards; can be easily removed sideways from the front entrance chamber. These partitions are somewhat non-revenue t to the end walls of the sump, the image at its beginning and in. the end of the inlet and outlet chambers, which serve to evenly distribute: the liquid in the layers. Front chamber. a vertical partition that does not reach the bottom. divided into two parts, so that all the layers of the liquid describe the same path, going both on the bottom and on the top shelf. The fiber or particles of kaolin, settled, pass through the shelves a very short way, and not the entire depth of the settling tank, as in other systems.

To collect the mass clot along the bottom of the tank and beneath there is a chute 9, which, with the aim of dissolving it from the tank when the clot is released through the valve // into the tank 12, is equipped with valves 9 with levers passing through the slots taken out in the cholot walls . These levers for hydraulic sealing are supplied with rubber sleeves W attached at one end on the screws with: frame 7 to the walls of the chute, and the other fittings are small; couplings applied to the levers and soldered to them.

The removal of the osprey that has settled on the shelves is done this way. The mass deposited on them, due to the inclination, slides into the middle space of the sump 7 and falls into the chute 8, from where it periodically descends. At this time, valves 9, by means of levers 2 and weights 3, are tightly closed and the chute is uncoupled from the settling tank, after which the valve 7 / is opened, and the skop descends into the downstream tank 72, from where it is already pumped over to the production. The levers 2 controlling the action of the valves 9 pass through a slot in the walls of the chute.

The subject matter of the invention.

1. A trap for trapping fiber and fillers from waste water of papermaking, characterized in that in the middle part of a rectangular tank equipped with a trapezoidal bottom with an inclination angle not parallel to the middle side, placed with

the purpose of forming a short path for the deposited fibers and fillers, parallel to the side walls of the bottom, is a row of shelves 4 made up of detachable boards inserted through the front, water inlet chamber of the above-mentioned tank boards, freely inserted into quarter ends of the outer walls and resting on the other ends bars, attached to the middle racks, and held on the bars with the help of stuffed bars 5 (Fig. 1, 2, 3).

2. The form of execution of the trap mentioned in paragraph 1, characterized in that to collect the mass clot along the bottom of the tank and under it is a chute 8, which is equipped with valves to separate it from the above tank when the clot is released through the valve 77 9 with levers passing through slots taken out in the walls of the cholus, equipped for hydraulic compaction with rubber sleeves 10, attached at one end on the screws with the help of frame 7 to the walls of the cholob, and at the other fitting small couplings superimposed on the snarl and soldered to them nnye.

3. The form of the tank indicated in paragraph 1, characterized in that for uniform distribution of the liquid to the layers of the shelf 4 are located in the middle part of it, forming an input end with a partition inserted into it, not at the bottom, but on the opposite is the exit chamber for clarified water (Fig. 2 and 3).

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