CN218373008U - A defibrination system for waste paper is retrieved - Google Patents

Abstract

The utility model provides a defibrination system for waste paper recycling, including two sets of fiberizers, the play thick liquid mouth of first set of fiberizers is connected with the series pipeline through going out the thick liquid pipe, it is equipped with first delivery pump on the thick liquid pipe to go out, the series pipeline is connected with filter equipment through filtering the filling tube, filter equipment includes the rose box, the rose box bottom is equipped with row's thick liquid mouth, be equipped with the filter that the slope set up in the rose box, the rose box is close to the lower one end of filter and is equipped with the bin outlet, the bin outlet passes through the conveyer pipe and is connected with the thick liquid mouth that advances of second set of fiberizer, be equipped with the second delivery pump on the conveyer pipe. The pulping machine realizes the serial pulping of the pulping machine, and can fully knead and reserve the fiber length.

Description

A defibrination system for waste paper is retrieved

Technical Field

The utility model relates to a papermaking grinds thick liquid technical field, in particular to a defibrination system for waste paper recovery.

Background

Domestic waste paper is recycled for many times, so that the components of the waste paper are complex, and the fiber quality is reduced; the separation difficulty of impurities and fibers is high, the fiber grading process is complex, the existing pulping process is utilized, the good pulp rate is reduced, the requirement of enterprises on producing high-quality packing paper cannot be met, and the production cost is high. Most of the imported waste paper is raw wood pulp paper, the impurities are less, the quality is high, high-quality good pulp is easy to obtain, and the method is economically more cost-effective. The adjustment strength of the national environmental protection policy is continuously strengthened, and the solid wastes such as waste paper and the like are recycled. When solid waste is recycled, in order to improve the quality of packaging paper, in pulping and papermaking processes, a large number of means such as surface sizing, internal sizing, addition of dry strength agent and wet strength agent are used to improve the quality of the packaging paper, so that the tendency that the quality of waste paper declines year by year is compensated; not only increases the cost, but also brings pressure to the environmental protection water treatment; the utilization rate of the waste paper is not fully and effectively improved, various physical indexes of the produced packaging paper are not obviously improved, the acceptance of customers is reduced, and the market competitiveness is reduced.

When the waste paper is recycled, pulping treatment is needed, and pulping is generally carried out by adopting a double-millstone pulping machine. Generally, the optimization of the pulping process is started from a refiner, for example, a medium consistency hydraulic double disc refiner disclosed in CN102400406B, which is suitable for medium consistency pulp pulping.

In the process of pulping the waste paper, in order to fully knead and improve pulping efficiency, the distance between the knife edges of the millstones of the pulping machine is small, so that the fiber is easily cut off excessively, and the indexes of folding resistance, breakage resistance and the like of the finished paper can not reach the standard.

Disclosure of Invention

The utility model aims to solve the technical problem that a defibrination system for waste paper recovery is provided, realizes the fiberizer and establishes ties the making beating, can fully rub and remain fibre length.

In order to solve the technical problem, the utility model discloses a technical scheme does: the utility model provides a defibrination system for waste paper recovery, including two sets of fiberizers, the play thick liquid mouth of first set of fiberizers is connected with the series pipeline through going out the thick liquid pipe, it is equipped with first delivery pump to go out to starch to manage, the series pipeline is connected with filter equipment through filtering the filling tube, filter equipment includes the rose box, the rose box bottom is equipped with row's thick liquid mouth, be equipped with the filter that the slope set up in the rose box, the rose box is close to the lower one end of filter and is equipped with the bin outlet, the bin outlet passes through the conveyer pipe and is connected with the thick liquid mouth that advances of the second set of fiberizers, be equipped with the second delivery pump on the conveyer pipe.

In the preferred scheme, the filter includes filtering zone and washout district, and the washout district is close to the bin outlet setting, and the filtering zone is equipped with the filtration pore, and washout district top is equipped with the delivery pipe, and the delivery pipe is equipped with a plurality of shower nozzles.

In the preferred scheme, the filter upside is close to the bin outlet and is equipped with two sets of stock guides, and two sets of stock guides constitute the guide passageway.

In the preferred scheme, the filter tank one side is equipped with the through-hole that supplies the filter to pass, and the filter tank inner wall is equipped with the spout with filter complex.

In the preferable scheme, the conveying pipe is connected with a pulp inlet of the second group of pulping machines through a series pipeline, a valve is arranged on the series pipeline, and the valve is arranged between the connecting position of the filtering and feeding pipe and the series pipeline and the connecting position of the conveying pipe and the series pipeline.

The utility model provides a pair of a defibrination system for waste paper recovery, this system establishes ties the making beating through setting up two sets of fiberizers, can be through adjustment cutter distance, avoid excessively pursuing one making beating efficiency and cause the fibre to excessively cut off, it increases the fibre brooming branch silk characteristic to remain fiber length, increase the making beating time to the not satisfied thick liquid that fineness requires through the series connection making beating, can make the paper pulp fibre receive fully rubbing, cooperation filter equipment, do not need repeated making beating to the paper pulp that satisfies the fineness requirement, can reduce the load capacity of fiberizer, improve the making beating efficiency.

Drawings

The invention is further described below with reference to the drawings and the examples:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the preferred structure of the present invention;

FIG. 3 is a schematic view showing the internal structure of the filter device;

FIG. 4 is a schematic view of the filter box;

in the figure: the pulping machine comprises a pulping machine 1, a serial pipeline 2, a pulp outlet pipe 3, a first conveying pump 4, a feeding pipe 5, a filter box 6, a filter plate 7, a conveying pipe 8, a second conveying pump 9, a water supply pipe 10, a spray head 11, a guide plate 12, a valve 13, a pulp outlet 101, a pulp inlet 102, a pulp outlet 601, a discharge outlet 602, a through hole 603, a chute 604, a filtering area 701 and a scouring area 702.

Detailed Description

Example 1: as shown in fig. 1~4, a pulping system for waste paper recycling comprises two groups of pulping machines 1, wherein the pulping machines 1 adopt double-disc pulping machines, the grinding teeth adopt a DD600 type, the distance between the cutters is adjusted, the pulping efficiency is reduced, pulp fibers are sufficiently kneaded, a pulp outlet 101 of the first group of pulping machines 1 is connected with a series pipeline 2 through a pulp outlet pipe 3, a first conveying pump 4 is arranged on the pulp outlet pipe 3, the series pipeline 2 is connected with a filtering device through a filtering and feeding pipe 5, the filtering device comprises a filtering box 6, a pulp outlet 601 is arranged at the bottom of the filtering box 6, a filter plate 7 which is obliquely arranged is arranged in the filtering box 6, an outlet end of the filtering and feeding pipe 5 is arranged above the filter plate 7, a discharge port 602 is arranged at one end, close to the lower end of the filter plate 7, the discharge port 602 is connected with a pulp inlet 102 of the second group of pulping machines 1 through a conveying pipe 8, and a second conveying pump 9 is arranged on the conveying pipe 8.

When specifically using, 1 quantity of fiberizers also can exceed 2 groups, all set up filter equipment between the fiberizer 1, establish ties through setting up multiunit fiberizer 1, when enlarging the distance between the sword, also can fully beat paper pulp, avoid excessively pursuing a beating efficiency and cause the fibre excessively to cut off, can fully rub paper pulp. The paper pulp after beating is filtered through filter equipment, the paper pulp that satisfies the fineness requirement is direct to be discharged from beating a river mouth 601, the paper pulp that does not conform to the fineness requirement is carried through conveyer pipe 8 and is beaten once more to next group fiberizer 1, thereby can beat paper pulp once more, increase the time of making beating, and simultaneously, can reduce the load capacity of fiberizer 1, increase the dwell time of the paper pulp that does not satisfy the fineness requirement, the not satisfied thick liquid concentration that satisfies the fineness requirement after the filtration increases, be favorable to when beating at next group fiberizer 1, the friction of rubbing each other between the fibre.

Preferably, as shown in fig. 2, the filter plate 7 includes a filtering area 701 and a washing area 702, the washing area 702 is disposed near the discharge port 602, the filtering area 701 is provided with filtering holes, a water supply pipe 10 is disposed above the washing area 702, the water supply pipe 10 is provided with a plurality of spray heads 11, and the water supply pipe 10 is communicated with a water source through a water pump.

By providing the water supply pipe 10 and the nozzle 11, the filtered brown stock can be flushed and discharged from the discharge port 602, and the concentration of the filtered brown stock can be adjusted to about 5.5%.

Preferably, two groups of material guide plates 12 are arranged on the upper side of the filter plate 7 close to the discharge port 602, and the two groups of material guide plates 12 form a material guide channel. The two groups of material guide plates 12 are obliquely arranged, the material guide plates 12 can also be arranged to be arc-shaped structures, and the material guide channel formed by the two groups of material guide plates 12 is in a conical or horn-shaped structure to guide the slurry, so that the slurry can be smoothly discharged from the discharge port 602.

Preferably, the filter box 6 one side is equipped with the through-hole 603 that supplies the filter 7 to pass, and the inner wall of filter box 6 is equipped with the spout 604 with filter 7 complex, and the filter 7 outer end is equipped with the handle, conveniently takes out filter 7 from spout 604. During the use, through taking out filter 7 along spout 604, conveniently dismantle filter 7 and clear up and change.

Example 2: unlike the embodiment 1, the delivery pipe 8 is connected with the pulp inlet 102 of the second group of refiners 1 through the series pipeline 2, the series pipeline 2 is provided with a valve 13, and the valve 13 is arranged between the connection position of the filtering and feeding pipe 5 and the series pipeline 2 and the connection position of the delivery pipe 8 and the series pipeline 2. Through being connected conveyer pipe 8 and series connection pipeline 2 to with valve 13 cooperation, utilize series connection pipeline 2 to realize the series connection of system, make things convenient for the online and off-line adjustment of fiberizer 1, the flexible operation.

This system carries out the making beating of establishing ties through setting up two sets of fiberizers, through adjustment cutter distance, can avoid the fibre excessively to cut off, remains fibre length increase fibre brooming and divides the silk characteristic, increases the making beating time to the thick liquid that does not satisfy the fineness requirement through the making beating of establishing ties, can make the paper pulp fibre receive fully rubbing, and cooperation filter equipment does not need repeated making beating to the paper pulp that satisfies the fineness requirement, improves the efficiency of making beating.

Claims (5)

1. A refining system for waste paper recovery, characterized by: including two sets of fiberizers (1), the play thick liquid mouth (101) of first set of fiberizer (1) is connected with series pipeline (2) through going out thick liquid pipe (3), it is equipped with first delivery pump (4) on thick liquid pipe (3) to go out, series pipeline (2) are connected with filter equipment through filtering filling tube (5), filter equipment includes rose box (6), rose box (6) bottom is equipped with row thick liquid mouth (601), be equipped with filter (7) that the slope set up in rose box (6), rose box (6) are close to the lower one end of filter (7) and are equipped with bin outlet (602), bin outlet (602) are connected through advancing thick liquid mouth (102) of conveyer pipe (8) and second set of fiberizer (1), be equipped with second delivery pump (9) on conveyer pipe (8).

2. A refining system for used paper recycling according to claim 1, characterized in that: the filter plate (7) comprises a filtering area (701) and a scouring area (702), the scouring area (702) is arranged close to the discharge port (602), the filtering area (701) is provided with filtering holes, a water supply pipe (10) is arranged above the scouring area (702), and the water supply pipe (10) is provided with a plurality of spray heads (11).

3. A refining system for used paper recycling according to claim 1, characterized in that: two groups of material guide plates (12) are arranged on the upper side of the filter plate (7) close to the discharge port (602), and the two groups of material guide plates (12) form a material guide channel.

4. A refining system for waste paper recycling according to claim 1, characterized in that: the filter box is characterized in that one side of the filter box (6) is provided with a through hole (603) for the filter plate (7) to pass through, and the inner wall of the filter box (6) is provided with a sliding groove (604) matched with the filter plate (7).

5. A refining system for used paper recycling according to claim 1, characterized in that: conveyer pipe (8) are connected with the thick liquid inlet (102) of second group fiberizer (1) through series connection pipeline (2), are equipped with valve (13) on series connection pipeline (2), and valve (13) set up between the hookup location of filtering filling tube (5) and series connection pipeline (2) and the hookup location of conveyer pipe (8) and series connection pipeline (2).

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