CN219604029U - Continuous type waste fruit bag paper recycling system - Google Patents

Abstract

The utility model discloses a continuous recycling system for waste fruit bag paper, which belongs to the field of waste paper pulping, and comprises a pulper, a sediment well, a hydraulic slag remover, a plurality of high-concentration slag removers and a plurality of double-disc pulping machines which are connected in sequence, wherein the pulper is also connected with a pulp conveying pipeline for conveying pulp after fluffing into a first high-concentration slag remover; the device also comprises a steam pipeline for introducing high-temperature steam into the pulper and a movable grab bucket for grabbing dregs in the sediment well. According to the utility model, high-temperature steam is introduced into the pulper, and a plurality of high-concentration slag removers and a plurality of double-disc pulping machines are matched, so that the recycling program of waste fruit bag paper can realize continuous work, the treatment efficiency of the waste fruit bag paper can be improved by 50%, and the pulp prepared by the system can meet all pulp using requirements of a special paper machine, and the company benefit is remarkable.

Description

Continuous type waste fruit bag paper recycling system

Technical Field

The utility model belongs to the field of waste paper pulping, and particularly relates to a continuous waste fruit bag paper recycling system.

Background

The fruit cultivating paper bag is a special agricultural paper bag for fruit bagging, and is used for sleeving the paper bag on fruits, so that fruit diseases and insect pests can be effectively reduced, sprayed pesticides are isolated, and fruits are free of pesticide residues and delicious.

When fruits go down the tree, a large amount of waste fruit bag paper can be produced, but the waste fruit bag paper is extremely difficult to fluffe because the waste fruit bag paper belongs to high-wet-strength paper, and each waste fruit bag paper is provided with 1 fine iron wire for bundling the binding opening, the existing pulping system is difficult to separate the waste fruit bag paper, so that a large amount of waste fruit bag paper cannot be effectively recycled, resources are wasted, and the environment is damaged.

Therefore, in order to realize the recovery of the waste fruit bag paper, a device and a method for recycling the waste fruit bag paper are disclosed in the patent application document with the application number of 202111403608.5, waste fruit bag paper, water and a wet strength paper dissociation agent are added into a pulper, stirring, crushing and separating are carried out through the pulper, under the action of centrifugal force and gravity, slurry with more iron wires is sent into a sediment well through a pipeline connected with the bottom of the cavity wall of the hydraulic pulper, the iron wires are deposited and accumulated under the action of gravity, slurry at the upper layer in the sediment well enters the hydraulic slag remover, secondary slag removal is carried out in the hydraulic slag remover, slurry with less iron wires after slag removal is introduced into the high-concentration slag remover, and the slurry entering the high-concentration slag remover is subjected to centrifugal separation, gravity action and backwash water for tertiary slag removal, so that the iron wires in the slurry are basically removed. According to the technical scheme, although the waste fruit bag paper can be recycled quickly and efficiently, the whole equipment cannot realize continuous operation due to the fact that the pulp crushing process and the secondary deslagging process are both required to be continued for a certain time, and the treatment efficiency is low.

Therefore, a continuous recycling system for waste fruit bag paper is urgently needed, so that the recycling process of the waste fruit bag paper can continuously work, and the treatment efficiency is greatly improved.

Disclosure of Invention

The utility model aims to provide a continuous waste fruit bag paper recycling system, which can continuously work a recycling program of waste fruit bag paper through continuous fluffing, so that the treatment efficiency can be improved by 50%.

In order to achieve the aim of the utility model, the technical scheme adopted is as follows: the continuous waste fruit bag paper recycling system comprises a pulper, a sediment well, a hydraulic slag remover, a plurality of high-concentration slag removers and a plurality of double-disc pulping machines which are connected in sequence, wherein the pulper is also connected with a pulp conveying pipeline for conveying the defiberized pulp into the first high-concentration slag removers; the device also comprises a steam pipeline for introducing high-temperature steam into the pulper and a movable grab bucket for grabbing dregs in the sediment well.

Further, a cylinder screen connected through a pipeline is additionally arranged on the hydraulic slag remover, and a slurry outlet of the cylinder screen is connected with the pulper.

Further, the device also comprises a slag extractor, wherein a heavy slag outlet of the pulper, a slag outlet of the hydraulic slag remover, a slag outlet of the cylinder screen and a slag outlet of the high-concentration slag remover are connected with the slag extractor.

Further, the outlet of the last double-disc pulping machine is also sequentially connected with a coarse screening device, a fine screening device, a light slag remover and a multi-disc thickener.

Further, the double-disc pulping machine is provided with L-shaped abrasive discs with dams.

Further, the inlet ends of the double-disc pulping machine are provided with permanent magnet iron removers.

Furthermore, the pulper is internally provided with an annular coil pipe, steam outlets are uniformly distributed on the annular coil pipe, and a steam pipeline is connected with the annular coil pipe.

Further, the gap between the rotor in the pulper and the screen plate in the pulper is not more than 1.5mm.

Further, the pulp grinder also comprises a chain plate conveyor for conveying waste fruit bag paper into the pulp grinder, an auxiliary material storage tank for storing a wet strength paper dissociation agent and a white water storage tower for storing white water, wherein the auxiliary material storage tank and the white water storage tower are connected with the pulp grinder through pipelines.

Further, the number of the high-concentration slag remover and the number of the double-disc pulping machines are two.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the waste fruit bag paper can be recycled without introducing new production sites by optimizing and modifying the existing equipment for recycling the waste fruit bag paper, so that the cost is saved, and the waste of resources is avoided; meanwhile, high-temperature steam is introduced into the pulper, and a plurality of high-concentration slag removers and a plurality of double-disc pulping machines are matched, so that the recycling program of waste fruit bag paper can realize continuous work, the treatment efficiency of the waste fruit bag paper can be improved by 50%, and the pulp prepared by the system can meet the whole pulp using requirement of a special paper machine, and the company benefit is remarkable.

2. The system provided by the utility model is used for recycling the waste fruit bag paper, so that the fiber of the waste fruit bag paper can be completely untwisted, the iron wires can be completely removed, the obtained sizing agent can be directly fed into a paper machine for papermaking, the purpose of recycling high-quality fiber is achieved, and the system can not only make the company profitable, but also make a certain contribution to the national environmental protection industry.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model.

Fig. 1 is a system diagram of a continuous waste fruit bag paper recycling system provided by the utility model.

The reference numerals and corresponding part names in the drawings:

1. chain plate conveyor 2, pulper, 3, sediment well, 4, movable grab bucket, 5, auxiliary material storage tank, 6, auxiliary material pump, 7, white water storage tower, 8, white water pump, 9, hydraulic slag remover, 10, cylinder screen, 11, steam pipeline, 12, high concentration slag remover, 13, double-disc pulp grinder, 14, slag extractor.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the substances, and not restrictive of the utility model. It should be further noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision. The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, the continuous waste fruit bag paper recycling system provided by the utility model comprises a pulper 2, a sediment well 3, a hydraulic slag remover 9, a plurality of high-concentration slag removers 12 and a plurality of double-disc pulping machines 13 which are connected in sequence; the pulper 2 is used for stirring and crushing the waste fruit bag paper, and carrying out preliminary fluffing and centrifugal separation on the waste fruit bag paper; the sediment well 3 is used for depositing the slag-containing slurry after preliminary fluffing and centrifugal separation of the pulper 2; the hydraulic slag remover 9 is used for performing secondary fluffing and slag removal on slurry discharged from the sediment well 3; the high-concentration slag remover is used for washing the slurry discharged by the hydraulic slag remover 9 by reverse flushing water, and carrying out sedimentation and centrifugal separation again after washing; the double disc refiner 13 is used for three fluffs of the pulp sent out by the high concentration cleaner.

The pulper 2 is directly connected with the existing hydraulic pulper 2 through pipelines, wherein a slag outlet of the hydraulic pulper 2 is connected with the slag well 3, a slurry outlet of the slag well 3 is connected with the hydraulic slag remover 9, the hydraulic slag remover 9 is connected with the first high-concentration slag remover 12, the plurality of high-concentration slag removers 12, the last high-concentration slag remover 12 is connected with the first double-disc pulping machine 13 and the plurality of double-disc pulping machines 13; meanwhile, when the slurry centrifugally separated in the pulper 2 does not contain dregs, the slurry centrifugally separated in the pulper 2 can be directly fed into the high-concentration slag remover 12, so that a slurry conveying pipeline is further connected between the pulper 2 and the first high-concentration slag remover 12, and in order to save the consumption of the pipeline, the outlet end of the slurry conveying pipeline can be directly connected in parallel to the pipeline between the hydraulic slag remover 9 and the first high-concentration slag remover 12.

The continuous waste fruit bag paper recycling system also comprises a steam pipeline 11, wherein the steam pipeline 11 can be directly connected with steam generating equipment in a thermoelectric branch plant, and the outlet end of the steam pipeline 11 extends into the pulper 2, so that the waste fruit bag paper in the pulper 2 can be heated in the stirring and crushing processes; meanwhile, in order to facilitate the delivery of dregs deposited in the sediment well 3, the system is further provided with a movable grab bucket 4, the movable grab bucket 4 is driven by a motor to move, grabbing of the movable grab bucket 4 is driven by compressed air, and the movable grab bucket 4 timely takes out iron wires deposited in the sediment well 3, so that the sediment well 3 is prevented from being blocked by too many deposited iron wires.

As a further improvement of the present embodiment, the hydraulic slag remover 9 is further provided with a cylindrical screen 10 connected by a pipeline, the slurry outlet of the cylindrical screen 10 is connected with the pulper 2, so that the slurry containing the light slag separated by the hydraulic slag remover 9 can be sent into the cylindrical screen 10 for sieving again, the sieved clean slurry is sent into the pulper 2 from the new time for pulping again, and the sieved slag is discharged out of the cylindrical screen 10.

As a further improvement in this embodiment, the continuous waste fruit bag paper recycling system further comprises a slag extractor 14, wherein the heavy slag outlet of the pulper 2, the slag outlet of the hydraulic slag extractor 9, the slag outlet of the cylindrical screen 10 and the slag outlet of the high-concentration slag remover 12 are connected with the slag extractor 14, so that the slag generated by the pulper 2, the hydraulic slag extractor 9, the cylindrical screen 10 and the high-concentration slag remover 12 can be sent into the slag extractor 14 for collection, thereby facilitating recycling of the slag. In the present utility model, the slag extractor 14 may be one in the case of satisfying the recovery of slag; of course, the slag extractor 14 in the present utility model may be plural, for example, the pulper 2, the hydraulic slag extractor 9, the cylindrical screen 10 and the high-concentration slag extractor 12 may each individually correspond to one slag extractor 14, or the pulper 2, the hydraulic slag extractor 9 and the cylindrical screen 10 may collectively correspond to one slag extractor 14, and each high-concentration slag extractor 12 corresponds to one slag extractor 14. Therefore, the arrangement of the slag extractor 14 in the present utility model can be adjusted according to the actual situation.

As a further improvement in the embodiment, the outlet of the last double-disc pulping machine 13 is also sequentially connected with a coarse screening device, a fine screening device, a light slag remover and a multi-disc thickener, so that the pulp obtained after the treatment of the system passes through the coarse screening device and the fine screening device, is deslagged again, is fed to the multi-disc thickener for concentration after deslagging, and can be directly fed to paper making equipment for paper making, thereby the recovery treatment of waste fruit bag paper is connected with a paper making production line, the recovery treatment of waste fruit bag paper and paper making production can be continuously completed, and the paper making production efficiency is greatly improved.

As a further improvement in this embodiment, the two-disc refiner 13 is provided with L-shaped abrasive sheets with dams, so that the two-disc refiner 13 can separate the pulp into filaments and retain the fiber length, and the quality of the paper finally produced by the pulp is ensured.

As a further improvement in this embodiment, the inlet ends of the double-disc refiner 13 are all provided with permanent magnetic iron removers, so that the slurry can be further removed of iron-containing residues in the slurry by the permanent magnetic iron removers before entering the double-disc refiner 13, thereby not only ensuring the quality of the slurry after being fluffed by the double-disc refiner 13, but also effectively placing the iron-containing residues to damage the grinding sheets of the double-disc refiner 13 when entering the double-disc refiner 13.

As a further improvement in the present embodiment, the pulper 2 is further provided with an annular coil, and in order to avoid affecting the annular coil during the rotation of the rotor in the pulper 2, the annular coil may be mounted on the inner wall of the pulper 2; steam outlets are also uniformly distributed on the annular coil, the steam outlets face the center of the pulper 2, and the steam pipeline 11 is communicated with the annular coil, so that high-temperature steam can be firstly fed into the annular coil and then discharged through the steam outlets, and the high-temperature steam is uniformly dispersed into the pulper 2, so that the heating effect in the pulper 2 is better.

As a further improvement in this embodiment, the clearance between rotor in pulper 2 and the sieve in pulper 2 is not greater than 1.5mm, not only make the effect of untangling of useless fruit bag paper better, and when guaranteeing to stir the thick liquids, effectively avoid the dregs card that the untangling produced to establish between rotor and the sieve of pulper 2, guaranteed the operation of pulper 2, effectively prevent the rotor in pulper 2 when rotating because of the dregs card established between pulper 2 rotor and pulper 2 sieve to cause the destruction to the sieve of pulper 2, make the life-span of pulper 2 obtain guaranteeing.

As a further improvement in the embodiment, the continuous waste fruit bag paper recycling system also comprises a chain plate conveyor 1, an auxiliary material storage tank 5 and a white water storage tower 7; the output end of the chain plate conveyor 1 is in butt joint with the feed inlet of the pulper 2, and the chain plate conveyor 1 is used for automatically feeding waste fruit bag paper into the pulper 2; the auxiliary material storage tank 5 is used for storing the wet strength paper dissociation agent; the white water storage tower 7 is used for storing white water. The auxiliary material storage tank 5 and the pulper 2 and the white water storage tower 7 and the pulper 2 are connected through pipelines, and in order to smoothly send the wet-strength paper dissociation agent in the auxiliary material storage tank 5 into the pulper 2, an auxiliary material pump 6 is also arranged on the pipeline between the auxiliary material storage tank 5 and the pulper 2; meanwhile, in order to smoothly feed the white water in the white water storage tower 7 into the pulper 2, a white water pump 8 is further installed on a pipe between the white water storage tower 7 and the pulper 2. Here, the auxiliary material pump 6 and the white water pump 8 are both direct use of the pumping pump in the prior art.

As a further improvement in this embodiment, the number of the high-concentration slag remover 12 and the double-disc refiner 13 is two, of course, the number of the high-concentration slag remover 12 and the double-disc refiner 13 may be more than 2, and the number of the high-concentration slag remover 12 and the double-disc refiner 13 may be equal or unequal, and the specific number of the high-concentration slag remover 12 and the double-disc refiner 13 may be determined according to practical situations.

As a further improvement in this embodiment, in order to control the slurry concentration entering the twin-disc refiner 13, a water inlet pipe may be installed on the twin-disc refiner 13, and an on-off valve may be installed on the water inlet pipe, and when the slurry concentration entering the twin-disc refiner 13 is too high, the on-off valve on the water inlet pipe may be opened to supplement water into the twin-disc refiner 13, thereby adjusting the slurry concentration in the twin-disc refiner 13.

When the system is actually operated, waste fruit bag paper is fed into a pulper 2 through a chain plate conveyor 1, white water is pumped into the pulper 2 through a white water pump 8, wet strength paper dissociation agent is pumped into the pulper 2 through an auxiliary material pump 6, then high-temperature steam is conveyed into an annular coil through a steam pipeline 11, and the high-temperature steam entering the annular coil is fed into the pulper 2 through a steam outlet on the annular coil; starting a pulper 2, stirring, fluffing and separating waste fruit bag paper by the pulper 2, screening out most iron wires under the action of centrifugal force and gravity, and sending the slurry with more iron wires in the pulper 2 into a sediment well 3 through a pipeline; under the action of gravity, the slurry entering the sediment well 3 deposits and piles up iron wires, the deposited iron wires are grabbed and sent out by the movable grab 4, and the slurry at the upper layer in the sediment well 3 enters the hydraulic slag remover 9; the slurry is subjected to secondary fluffing and deslagging in a hydraulic slag remover 9, and the obtained slurry enters a plurality of high-concentration slag removers 12 in sequence; the slurry entering the high-concentration slag remover 12 is subjected to centrifugal separation, gravity action and back flushing in the high-concentration slag remover 12 to remove residual iron wires, and the obtained slurry is sequentially sent into a double-disc pulping machine 13; the pulp entering the double-disc refiner 13 is fluffed for three times, the fluffed pulp is subjected to coarse screening by a coarse screening device, then is subjected to fine screening by a fine screening device, finally is subjected to deslagging again, and is sent to a multi-disc thickener for concentration, and the concentrated pulp is directly sent to paper making equipment for paper making.

When no iron wires are contained in the slurry sent out from the pulper 2, the slurry can be directly and sequentially sent into a plurality of high-concentration slag removers 12 through pipelines for centrifugal separation, gravity action and back flushing, residual iron wires are removed, and the obtained slurry is sequentially sent into a double-disc refiner 13 for repetition.

When the slurry subjected to secondary disintegration and deslagging by the hydraulic slag remover 9 still contains light slag and a small amount of iron wires, the slurry subjected to secondary disintegration and deslagging by the hydraulic slag remover 9 can be directly sent into the cylindrical screen 10 for secondary screening, the screened clean slurry is sent into the pulper 2 from the new state for secondary pulping, and the screened slag is discharged out of the cylindrical screen 10.

In the system, iron wires screened by the pulper 2, the hydraulic slag remover 9, the cylinder screen 10 and the high-concentration slag remover 12 can be directly fed into the slag extractor 14 for delivery.

When the pulper 2 stirs, fluffs and separates the waste fruit bag paper, the high-temperature steam sent into the pulper 2 heats the interior of the pulper 2 to 60-70 degrees, and the waste fruit bag paper can be better fluffed in the temperature range.

When the pulper 2 stirs, fluffs and separates the waste fruit bag paper, the dosage of the wet-strength paper dissociating agent added into the pulper 2 is 190 Kg/ton, and the dosage of the wet-strength paper dissociating agent can thoroughly fluffe the waste fruit bag paper, so that the waste of dissociating agent and the excessive residue in the pulp are not easy to degrade due to excessive materials.

The pulper 2 must control the pulp crushing concentration in the pulper 2 to 5% or more during the process of stirring, fluffing and separating the waste fruit bag paper.

In the description of the present specification, reference to the terms "one embodiment/manner," "some embodiments/manner," "example," "a particular example," "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/manner or example is included in at least one embodiment/manner or example of the utility model. In this specification, the schematic representations of the above terms are not necessarily for the same embodiment/manner or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/modes or examples described in this specification and the features of the various embodiments/modes or examples can be combined and combined by persons skilled in the art without contradiction.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

It will be appreciated by persons skilled in the art that the above embodiments are provided for clarity of illustration only and are not intended to limit the scope of the utility model. Other variations or modifications will be apparent to persons skilled in the art from the foregoing disclosure, and such variations or modifications are intended to be within the scope of the present utility model.

Claims (10)

1. The continuous waste fruit bag paper recycling system is characterized by comprising a pulper (2), a sediment well (3), a hydraulic slag remover (9), a plurality of high-concentration slag removers (12) and a plurality of double-disc pulping machines (13) which are connected in sequence, wherein the pulper (2) is also connected with a slurry conveying pipeline for conveying the defiberized slurry into the first high-concentration slag removers (12); the device also comprises a steam pipeline (11) for introducing high-temperature steam into the pulper (2) and a movable grab bucket (4) for grabbing dregs in the sediment well (3).

2. The continuous waste fruit bag paper recycling system according to claim 1, wherein a cylindrical screen (10) connected through a pipeline is additionally arranged on the hydraulic slag remover (9), and a pulp outlet of the cylindrical screen (10) is connected with the pulper (2).

3. The continuous waste fruit bag paper recycling system according to claim 2, further comprising a slag extractor (14), wherein the heavy slag outlet of the pulper (2), the slag outlet of the hydraulic slag remover (9), the slag outlet of the cylindrical screen (10) and the slag outlet of the high-concentration slag remover (12) are connected with the slag extractor (14).

4. The continuous waste fruit bag paper recycling system according to claim 1, wherein the outlet of the last double-disc refiner (13) is further connected with a coarse screening device, a fine screening device, a light scummer and a multi-disc thickener in sequence.

5. The continuous recycling system of waste fruit bag paper according to claim 1, 2, 3 or 4, wherein the double-disc refiner (13) is provided with L-shaped grinding sheets with dams.

6. The continuous recycling system of waste fruit bag paper according to claim 1, 2, 3 or 4, wherein permanent magnet de-ironing devices are arranged at the inlet ends of the double-disc refiner (13).

7. The continuous recycling system of waste fruit bag paper according to claim 1, 2, 3 or 4, wherein the pulper (2) is further internally provided with an annular coil pipe, steam outlets are uniformly distributed on the annular coil pipe, and a steam pipeline (11) is connected with the annular coil pipe.

8. A continuous recycling system for waste fruit bag paper according to claim 1 or 2 or 3 or 4, characterized in that the gap between the rotor in the pulper (2) and the screen plate in the pulper (2) is not more than 1.5mm.

9. The continuous waste fruit bag paper recycling system according to claim 1, 2, 3 or 4, further comprising a chain plate conveyor (1) for conveying waste fruit bag paper into the pulper (2), an auxiliary material storage tank (5) for storing wet strength paper dissociation agent, and a white water storage tower (7) for storing white water, wherein the auxiliary material storage tank (5) and the white water storage tower (7) are connected with the pulper (2) through pipelines.

10. Continuous waste fruit bag paper recycling system according to claim 1 or 2 or 3 or 4, characterized in that the high-concentration slag separator (12) and the double-disc refiner (13) are two.