Pulping device and pulping method thereof

Abstract

The invention discloses a pulping device and a pulping method thereof, comprising a feeding and conveying device, a hydraulic pulping device, a pulp storage device, a screw conveying device and a screening device; the feeding and conveying device conveys materials into a hydraulic pulper for crushing; the crushed materials enter a multi-layered, circulatory pulp storage tank with a certain inclination angle to store, dilute and rinse the pulp, while heavy residue settles at the bottom of the tank and enters a screw conveyor from a collection port, and is pushed by spiral blades into a screen cylinder with spraying, flushing, screening and sieving functions; after the pulp enters the cylindrical screen, it is lifted to a certain height as the cylinder rotates and then slides down, and is again dispersed and dispersed, while the spray mechanism again flushes and screens the pulp to make it more thoroughly dissolved; the paper pulp soluble in water enters a good pulp pool, and the water-insoluble materials move toward the outlet in the inclined cylinder and are discharged, thereby obtaining a variety of usable materials.

Description

Technical Field

[0001] The present invention belongs to the technical field of pulping equipment, and in particular relates to a pulping device and a pulping method thereof. Background Art

[0002] At present, waste paper pulping equipment often uses a drum pulper or a traditional hydraulic pulper combined with a chain conveyor to break down the material to obtain high-quality pulp. However, this pulping method only aims to obtain a single high-quality pulp and requires that the waste paper raw material contain a low amount of residue to maximize the desired high-quality pulp. However, with the advancement of science and technology, raw materials have become more diversified. For example, products such as Tetra Pak contain recyclable paper, plastic, and aluminum foil. Therefore, raw materials are no longer of a single structure or single performance. No one material accounts for more than 95% of the content. The situation is close to even distribution. Moreover, two or more materials contained in the material can be recycled. If only one is obtained, it is a huge waste and will lead to an asymmetry between cost and benefit. In addition, the existing raw materials contain materials that have a greater impact on the environment and are more difficult to degrade. If they are not recycled, it will not only waste a lot of energy, but also cause great damage to the environment, which will affect human life!

[0003] Therefore, a new pulping device and pulping method are urgently needed to meet the diverse raw materials that have emerged with current technological progress. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a pulping device and a pulping method thereof.

[0005] The technical solution adopted in the present invention is:

[0006] A pulping device comprises a feeding and conveying device, a hydraulic pulping device, a pulp storage device, a screw conveying device and a screening device; the feeding and conveying device adopts a conveying chain plate machine, the hydraulic pulping device adopts a hydraulic pulper, and the screw conveying device adopts a screw conveyor; the feeding and conveying device conveys the raw material to the hydraulic pulping device for crushing, and the crushed material is discharged from the discharge port of the hydraulic pulping device to the pulp storage device, and the pulp storage device comprises a pulp storage tank, the pulp storage tank is provided with a pulp inlet facing the hydraulic pulping device, the pulp inlet is communicated with the discharge port of the hydraulic pulping device, at least one pulp storage partition is provided in the pulp storage tank, the pulp storage partition divides the pulp storage tank into a first pulp channel and a second pulp channel, the first pulp channel and the second pulp channel are connected The two slurry channels are connected, and the bottom of the first slurry channel and the bottom of the second slurry channel are inclined, and a dilution water inlet is provided near the slurry inlet in the first slurry channel, a slag discharge port is provided on the end side wall of the second slurry channel, and a collecting port is provided at the end bottom of the second slurry channel; the collecting port is connected with the feed port of the spiral conveying device, and the discharge port of the spiral conveying device is connected with the feed port of the screening device. The screening device includes a screen drum, a rotating mechanism and a spraying mechanism. The screen drum is mounted on the rotating mechanism and the rotating mechanism rotates relative to the screen drum. The screen drum is provided with a feed port and a slag discharge port, and a spray port and screen holes are provided on the side wall of the screen drum. The spray mechanism is installed on the outer wall of the screen drum and corresponds to the spray port. A good slurry pool is provided below the screen holes.

[0007] As a preferred solution of the present invention, two slurry storage partitions are provided in the slurry storage tank, including a first slurry storage partition and a second slurry storage partition. The first slurry storage partition and the second slurry storage partition are staggered to divide the slurry storage tank into a first slurry channel, an intermediate slurry channel and a second slurry channel. The discharge end of the first slurry channel is connected to the feed end of the intermediate slurry channel, and the discharge end of the intermediate slurry channel is connected to the feed end of the second slurry channel. The bottom of the first slurry channel is inclined from the feed end to the discharge end, the bottom of the intermediate slurry channel is inclined from the feed end to the discharge end, and the bottom of the second slurry channel is inclined from the feed end to the discharge end.

[0008] The present invention also provides a pulping method using the pulping device, comprising the following steps:

[0009] S1, loading and hydraulic crushing.

[0010] The feeding and conveying device transports the raw materials to the hydraulic crushing device, which crushes the raw materials;

[0011] S2, the crushed material is discharged from the hydraulic crushing device into the storage tank for multiple dilution and rinsing;

[0012] The crushed material is discharged from the hydraulic crushing device into the first slurry channel, and the external dilution water source enters the first slurry channel from the dilution water inlet to dilute and rinse the crushed material; the diluted and rinsed material enters the middle slurry channel along the inclined bottom of the first slurry channel, and is diluted and rinsed twice in the middle slurry channel, and the material after the second dilution and rinse enters the second slurry channel along the inclined bottom of the middle slurry channel, and is diluted and rinsed three times in the second slurry channel, and the diluted and rinsed material is collected at the end of the second slurry channel along the inclined bottom of the second slurry channel, and the heavy residue in the diluted and rinsed material settles in the second slurry channel and is discharged from the slag discharge port;

[0013] S3, the diluted and rinsed material is spirally conveyed.

[0014] The diluted and rinsed material is discharged from the collection port of the storage tank into the screw conveying device, and the screw conveying device conveys the material into the screen drum.

[0015] S4, spray screening.

[0016] The rotating mechanism rotates to make the material rotate in the screen drum, and the spraying mechanism sprays from the spray port into the screen drum. The water-soluble pulp is discharged from the screen hole to the pulp pool for storage, and the water-insoluble material is discharged from the discharge port of the screw conveyor.

[0017] The present invention adopts a conveyor chain conveyor to convey materials into the tank body of the hydraulic pulper, and the two are combined to convey the crushed materials; the crushed materials enter a recyclable pulp storage tank with multiple layers and a certain inclination angle to store, dilute and rinse the pulp, and the heavy residue settles at the bottom of the tank and is maintained and cleaned within a certain period; in the tank body, the materials flow toward the lower position under the action of a certain slope and the flushing of the dilution water outlet, and enter the screw conveyor from the collection port, and are pushed by the spiral blades into the drum cylinder with spraying, flushing, screening and sieving functions; after entering the cylindrical screen, the pulp is lifted to a certain height as the cylinder rotates and slides down, and is again dispersed and dispersed, and at the same time the spray mechanism flushes and screens the pulp again to make it dissolve more thoroughly; the water-soluble paper pulp enters the good pulp pool through the sieve holes on the cylindrical screen, and the water-insoluble materials move toward the outlet in the inclined cylinder and are discharged from the outlet, so that a variety of usable materials can be obtained. Not only are the sources of raw materials diversified, the materials obtained are diverse, and the profit channels are richer, but also the recycling of multiple resources is achieved, which reduces energy waste, reduces the impact on the environment, and meets environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 The structure of the pulping device of the present invention is shown in FIG. Figure 1 .

[0020] Figure 2 The structure of the pulping device of the present invention is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0022] Example 1:

[0023] A pulping device includes a feeding and conveying device 1, a hydraulic pulping device 2, a pulp storage device 3, a screw conveying device 4 and a screening device 5; the feeding and conveying device 1 adopts a conveying chain conveyor, the hydraulic pulping device 2 adopts a hydraulic pulper, and the screw conveying device 4 adopts a screw conveyor. The feeding and conveying device conveys the raw material to the hydraulic pulping device for crushing, and the crushed material is discharged from the discharge port of the hydraulic pulping device to the pulp storage device. The pulp storage device includes a pulp storage tank 31, and the pulp storage tank 31 is provided with a pulp inlet facing the hydraulic pulping device, and the pulp inlet is connected to the discharge port of the hydraulic pulping device.

[0024] Two slurry storage partitions are provided in the slurry storage tank 31, including a first slurry storage partition 331 and a second slurry storage partition 332. The first slurry storage partition 331 and the second slurry storage partition 332 are staggered to divide the slurry storage tank into a first slurry channel 34, an intermediate slurry channel 36 and a second slurry channel 35. The discharge end of the first slurry channel 34 is connected to the feed end of the intermediate slurry channel 36, and the discharge end of the intermediate slurry channel 36 is connected to the feed end of the second slurry channel 35. The bottom of the first slurry channel 34 is inclined from the feed end to the discharge end, the bottom of the intermediate slurry channel 36 is inclined from the feed end to the discharge end, and the bottom of the second slurry channel 35 is inclined from the feed end to the discharge end.

[0025] In addition, a dilution water inlet 36 is provided near the slurry inlet of the first slurry channel 34, a slag discharge port 37 is provided on the end side wall of the second slurry channel 35, and a collecting port 38 is provided at the end bottom of the second slurry channel 35; the collecting port 38 is connected to the feed port of the screw conveying device 4, and the discharge port of the screw conveying device 4 is connected to the feed port of the screening device 5.

[0026] The screening device includes a screen drum 51, a rotating mechanism, and a spray mechanism 52. The screen drum is mounted on the rotating mechanism and rotates relative to the screen drum. The screen drum is provided with a feed port and a slag discharge port. Spray ports and screen holes are provided on the side wall of the screen drum. The spray mechanism is mounted on the outer wall of the screen drum 51 and corresponds to the spray port. A good stock pool 53 is provided below the screen holes. The spray mechanism adopts a conventional spray structure. The rotating mechanism is electrically driven by a rotary motor, which is also a common structure in existing designs.

[0027] Example 2:

[0028] A pulping device, which differs from Example 1 in that a slurry storage partition 33 is provided in the slurry storage tank 31, and the slurry storage partition 33 divides the slurry storage tank 31 into a first slurry channel 34 and a second slurry channel 35. The first slurry channel 34 and the second slurry channel 35 are connected, and the bottom of the first slurry channel 34 and the bottom of the second slurry channel 35 are inclined. The rest is the same as Example 1.

[0029] Example 3:

[0030] A pulping method using the pulping device in Example 1, comprising the following steps:

[0031] S1, loading and hydraulic crushing.

[0032] The feeding and conveying device transports the raw materials to the hydraulic crushing device, which crushes the raw materials;

[0033] S2, the crushed material is discharged from the hydraulic crushing device into the storage tank 31 for multiple dilution and rinsing;

[0034] The crushed material is discharged from the hydraulic crushing device into the first slurry channel 34, and an external dilution water source enters the first slurry channel 34 from the dilution water inlet to dilute and rinse the crushed material; the diluted and rinsed material enters the intermediate slurry channel 36 along the inclined bottom of the first slurry channel 34, and undergoes a second dilution and rinsing in the intermediate slurry channel 36. The material after the second dilution and rinsing enters the second slurry channel 35 along the inclined bottom of the intermediate slurry channel 36, and undergoes a third dilution and rinsing in the second slurry channel 35. After dilution and rinsing, the material is collected at the end of the second slurry channel 35 along the inclined bottom of the second slurry channel 35, and the heavy residue in the diluted and rinsed material settles in the second slurry channel 35 and is discharged from the slag discharge port 37;

[0035] S3, the diluted and rinsed material is spirally conveyed.

[0036] The diluted and rinsed material is discharged from the collecting port of the storage tank 31 into the screw conveying device 4 , and the screw conveying device 4 conveys the material into the screen drum 51 .

[0037] S4, spray screening.

[0038] The rotating mechanism rotates to make the material rotate in the screen drum, and the spraying mechanism sprays from the spray port into the screen drum. The water-soluble pulp is discharged from the screen hole to the pulp pool for storage, and the water-insoluble material is discharged from the discharge port of the screw conveyor.

[0039] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A pulping method, characterized in that: The pulping device used comprises a feeding and conveying device (1), a hydraulic pulping device (2), a pulp storage device (3), a screw conveying device (4) and a screening device (5); the feeding and conveying device conveys the raw material to the hydraulic pulping device for pulping, and the pulped material is discharged from the discharge port of the hydraulic pulping device to the pulp storage device, the pulp storage device comprises a pulp storage tank (31), the pulp storage tank (31) is provided with a pulp inlet facing the hydraulic pulping device, and the pulp storage tank (31) is provided with two storage tanks. The slurry partition comprises a first slurry storage partition (331) and a second slurry storage partition (332), wherein the first slurry storage partition (331) and the second slurry storage partition (332) are staggered to divide the slurry storage tank into a first slurry channel (34), an intermediate slurry channel (36) and a second slurry channel (35), wherein the discharge end of the first slurry channel (34) is connected to the feed end of the intermediate slurry channel (36), and the discharge end of the intermediate slurry channel (36) is connected to the feed end of the second slurry channel (35). The bottom of the first slurry channel (34) is inclined from the feed end to the discharge end, the bottom of the middle slurry channel (36) is inclined from the feed end to the discharge end, and the bottom of the second slurry channel (35) is inclined from the feed end to the discharge end; and a dilution water inlet (36) is provided near the slurry inlet of the first slurry channel (34), a slag discharge port (37) is provided on the end side wall of the second slurry channel (35), and a collecting port (38) is provided at the end bottom of the second slurry channel (35); a collecting port (38) is provided at the end ... dilution water inlet (36) is provided near the slurry inlet of the first slurry channel (34), a slag discharge port (37) is provided at the end side wall of the second slurry channel (35), and a collecting port (38) is provided at the end bottom of the second slurry channel (35); a collecting port (38) is provided at the end of the second slurry channel (35); a dilution water inlet (36) is provided near the slurry inlet of the first slurry channel (34), a slag discharge port (37) is provided at the end side wall of the second slurry channel (35); a collecting port (38) is provided at the end bottom of the second slurry channel (35); a dilution water inlet (36) is provided near the slurry inlet of the first slurry channel (34), a slag discharge port (37) is provided at the end side wall of The opening (38) is communicated with the feed opening of the screw conveying device (4), and the discharge opening of the screw conveying device (4) is communicated with the feed opening of the screening device (5). The screening device includes a screen drum (51), a rotating mechanism, and a spraying mechanism. The screen drum is sleeved on the rotating mechanism and the rotating mechanism rotates relative to the screen drum. The screen drum is provided with a feed opening and a slag discharge opening. A spray opening and screen holes are provided on the side wall of the screen drum. The spraying mechanism is installed on the outer wall of the screen drum (51) and corresponds to the spray opening. A good pulp pool is provided below the screen holes. The steps are: S1, loading materials and performing hydraulic crushing; The feeding and conveying device transports the raw materials to the hydraulic crushing device, which crushes the raw materials; S2, the crushed material is discharged from the hydraulic crushing device into the storage tank for multiple dilution and rinsing; S3, the diluted and rinsed material is spirally conveyed; The diluted and rinsed material is discharged from the collection port of the storage tank 31 into the screw conveying device (4), and the screw conveying device (4) conveys the material into the screen drum (51); S4, spray screening; The rotating mechanism rotates to make the material rotate in the screen drum, and the spraying mechanism sprays from the spray port into the screen drum. The water-soluble pulp is discharged from the screen hole to the pulp pool for storage, and the water-insoluble material is discharged from the discharge port of the screw conveyor.

2. The pulping method according to claim 1, characterized in that In step S2, the specific steps are as follows: the crushed material is discharged from the hydraulic crushing device into the first slurry channel (34), and an external dilution water source enters the first slurry channel (34) from the dilution water inlet to dilute and rinse the crushed material; the diluted and rinsed material enters the middle slurry channel (36) along the inclined bottom of the first slurry channel (34), and is diluted and rinsed twice in the middle slurry channel (36); the material diluted and rinsed twice enters the second slurry channel (35) along the inclined bottom of the middle slurry channel (36), and is diluted and rinsed three times in the second slurry channel (35); the diluted and rinsed material is collected at the end of the second slurry channel (35) along the inclined bottom of the second slurry channel (35), and the heavy residue in the diluted and rinsed material settles in the second slurry channel (35) and is discharged from the slag discharge port (37).

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