Pulping and dewatering device for papermaking

Abstract

The utility model relates to the technical field of papermaking, in particular to a pulping and dewatering device for papermaking, which comprises a filter pressing mechanism and a centrifugal dewatering mechanism, a compression mechanism comprises a support frame, a filter pressing roller and a conveying roller, the filter pressing roller and the conveying roller are arranged in the support frame, and a driving mechanism for driving the filter pressing roller and the conveying roller is arranged on the outer side of the support frame. Collecting boxes are arranged on the lower end faces of the supporting frames; the centrifugal dewatering mechanism comprises a supporting base, a filtering barrel arranged in the supporting base, a centrifugal filtering barrel connected with the lower part in the filtering barrel, and a driving motor arranged in the supporting base and used for driving the centrifugal filtering barrel to rotate; a supporting frame extending to the position over the centrifugal filtering cylinder is arranged on the outer side of the filtering barrel, and a drying cylinder is arranged on the lower end face of the supporting frame. Most of water is extruded and discharged through preliminary filter pressing treatment, and then the water is put into the centrifugal drum to be dehydrated and dried, so that filter holes of the filter drum cannot be blocked by paper pulp due to excessive water, and meanwhile, the dehydration efficiency is higher.

Description

Technical Field

[0001] The utility model relates to a pulping and dewatering device for papermaking, in particular to a pulping and dewatering device for papermaking, belonging to the technical field of papermaking. Background Art

[0002] Toilet paper is mainly used for people's daily hygiene and is one of the indispensable types of paper for the people. In order to make toilet paper soft, mechanical methods are usually used to make wrinkles on the paper to increase the softness of the toilet paper. There are many raw materials for making toilet paper, and commonly used ones include natural and pollution-free raw materials such as cotton pulp, wood pulp, bamboo pulp, and straw pulp; the produced pulp needs to be dehydrated through a pulp dehydration device, and then the dehydrated pulp is further produced and processed.

[0003] Most of the existing dewatering devices use a motor to drive the filter cartridge to rotate, so that the pulp inside is centrifugally dehydrated. However, during the centrifugal process, since the input pulp contains a large amount of water, a large amount of pulp will adhere to the surface of the filter cartridge during rotation, blocking the filter holes on the filter cartridge, thereby affecting the dewatering effect of the pulp and greatly reducing the dewatering efficiency of the pulp.

[0004] Therefore, there is an urgent need to improve the pulping and dewatering device for papermaking to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pulping and dewatering device for papermaking, which squeezes out most of the water after preliminary filter pressing treatment and then puts the pulp into a centrifugal drum for dehydration and drying. Not only will the pulp not clog the filter holes of the filter drum due to excessive water, but the dehydration efficiency will be faster.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include: a pulping and dewatering device for papermaking, including a filter press mechanism and a centrifugal dewatering mechanism, the compression mechanism includes a support frame, a filter press drum and a conveying drum arranged in the support rod frame, a driving mechanism for driving the filter press drum and the conveying drum is arranged on the outside of the support frame, and a collection box is arranged on the lower end surface of the support frame;

[0007] The centrifugal dehydration mechanism includes a support base, a filter barrel arranged inside the support base, a centrifugal filter cartridge connected to the lower part of the filter barrel, and a drive motor arranged in the support base and used to drive the centrifugal filter cartridge to rotate; a support frame extending to just above the centrifugal filter cartridge is provided on the outside of the filter barrel, and a drying cylinder is provided on the lower end surface of the support frame.

[0008] Preferably, a feed plate is obliquely provided on the side of the support frame away from the filter barrel, and the lowest end of the feed plate is connected to the support frame. A slide plate extending to directly above the centrifugal filter barrel is obliquely provided on one end of the support frame away from the feed plate, and the highest end of the slide plate is connected to the support frame.

[0009] Preferably, the driving mechanism includes a second driving motor fixedly arranged on one side of the support frame and a pulley connected to the output end of the second driving motor, one end of the filter press drum passes through the outside of the support frame and is connected to the pulley, one end of the conveying drum passes through the outside of the support frame and is connected to the second pulley, and the pulley and the second pulley are linked by a belt.

[0010] Preferably, a drainage groove is provided on the support frame, and a drainage box communicating with the drainage groove is provided on the lower end surface of the support frame. The drainage box is connected to a drainage pipe extending to the top of the collection box at an angle downward on one side thereof close to the collection box.

[0011] Preferably, the lower end surface of the support base is a cavity structure, the drive motor is inside the cavity structure, the output end of the drive motor passes through the interior of the filter barrel and is connected to the center of the lower end surface of the centrifugal filter cartridge, and heat dissipation holes are provided on the support base.

[0012] Preferably, the outer wall of the centrifugal filter drum is provided with a plurality of filter holes with filter screens, and the outer sides of the filter barrel and the collection box are both connected to drainage pipes with valves.

[0013] Preferably, the drying drum includes a rotating shaft rotatably connected to the bottom of the centrifugal filter drum, a fan arranged above the interior of the drying drum, a plurality of heating tubes arranged inside the drying drum and below the fan, and a plurality of exhaust holes with filter screens opened on the drying drum.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. The pulp is fed into the feed plate and squeezed through the filter press drum and the bottom of the conveying drum. The second drive motor is used to drive the pulley to rotate, thereby driving the filter press drum to rotate. At the same time, the belt setting is used to drive the second pulley to rotate synchronously, thereby squeezing and conveying the filtered pulp to the sliding plate to slide to the next process. After the filtered pulp enters the centrifugal filter drum, the drive motor is used to drive the centrifugal filter drum to rotate, thereby further rotating and dehydrating the pulp inside the centrifugal filter drum. During the rotation of the centrifugal filter drum, the fan is used to blow towards the heating pipe being heated, so that the hot air is discharged through the exhaust hole, thereby drying the pulp that is being further centrifugally dehydrated, improving its drying and dehydration efficiency, so that it will not cause the pulp to clog the filter holes of the filter drum due to excessive water, and the dehydration efficiency will be faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a partial side sectional view of the present utility model;

[0019] Figure 3 It is a partial cross-sectional schematic diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the drying drum of the present utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the interior of the drying drum of the present invention.

[0022] In the figure, 1-filter press mechanism; 2-centrifugal dehydration mechanism; 3-support frame; 4-filter press drum; 5-conveyor drum; 6-driving mechanism; 601-second driving motor; 602-pulley; 603-second pulley; 604-belt; 7-collecting box; 8-support base; 9-filter barrel; 10-centrifugal filter cartridge; 11-driving motor; 12-support frame; 13-drying drum; 14-feed plate; 15-sliding plate; 16-drainage trough; 17-drainage box; 18-drainage pipe; 19-rotating shaft; 20-fan; 21-heating pipe; 22-drainage pipe. DETAILED DESCRIPTION

[0023] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] like Figure 1-Figure 5 As shown, the pulping and dewatering device for papermaking provided in this embodiment includes a filter press mechanism 1 and a centrifugal dewatering mechanism 2. The compression mechanism 1 includes a support frame 3, a filter press drum 4 and a conveying drum 5 arranged in the support rod frame 3. A feed plate 14 is obliquely provided on the side of the support frame 3 away from the filter barrel 9. The lowest end of the feed plate 14 is connected to the support frame 3. A sliding plate 15 extending to just above the centrifugal filter barrel 10 is obliquely provided on the end of the support frame 3 away from the feed plate 14. The highest end of the sliding plate 15 is connected to the support frame 3.

[0025] Furthermore, a driving mechanism for driving the filter press drum 4 and the conveying drum 5 is provided on the outside of the support frame 3. The driving mechanism includes a second driving motor 601 fixedly arranged on one side of the support frame 3 and a pulley 602 connected to the output end of the second driving motor 601. One end of the filter press drum 4 passes through the outside of the support frame 3 and is connected to the pulley 602. One end of the conveying drum 5 passes through the outside of the support frame 3 and is connected to the second pulley 603. The pulley 602 and the second pulley 603 are linked by a belt 604. In the process of pulp filtering, the pulp is put into the feed plate 14 and then squeezed under the filter press drum 4 and the conveying drum 5. During squeezing, the second driving motor 601 drives the pulley 602 to rotate, thereby driving the filter press drum 4 to rotate. At the same time, the setting of the belt 604 drives the second pulley 603 to rotate synchronously, thereby realizing the squeezing and conveying of the filtered pulp to the sliding plate 15 to slide to the next process;

[0026] Furthermore, a collecting box 7 is provided on the lower end surface of the support frame 3; a drainage groove 16 is provided on the support frame 3, and a drainage box 17 communicating with the drainage groove 16 is provided on the lower end surface of the support frame 3. A side of the drainage box 17 close to the collecting box 7 is connected to a drainage pipe 18 extending to the top of the collecting box 7 at an angle downward. During the pulp filtration process, the filtered water is discharged into the drainage box 17 through the drainage groove 16, and then flows into the collecting box 7 through the drainage pipe 18 for collection and treatment.

[0027] The centrifugal dehydration mechanism 2 includes a support base 8, a filter barrel 9 arranged inside the support base 8, a centrifugal filter cartridge 10 connected to the lower part of the filter barrel 9, and a drive motor 11 arranged in the support base 8 and used to drive the centrifugal filter cartridge 10 to rotate; the lower end surface of the support base 8 is a cavity structure, the drive motor 11 is inside the cavity structure, the output end of the drive motor 11 passes through the interior of the filter barrel 9 and is connected to the center of the lower end surface of the centrifugal filter cartridge 10, and the support base 8 is provided with heat dissipation holes to realize heat dissipation of the drive motor 11;

[0028] Furthermore, the outer wall of the centrifugal filter drum 10 is provided with a plurality of filter holes with filter screens. The outer sides of the filter barrel 9 and the collection box 7 are both connected to a drainage pipe 22 with a valve for discharging water. When the pulp after the filter press enters the interior of the centrifugal filter drum 10, the drive motor 11 is used to drive the centrifugal filter drum 10 to rotate, thereby further rotating and dehydrating the pulp inside the centrifugal filter drum 10.

[0029] A support frame 12 extending to just above the centrifugal filter drum 10 is provided on the outside of the filter drum 9, and a drying drum 13 is provided on the lower end surface of the support frame 12; the drying drum 13 includes a rotating shaft 19 rotatably connected to the bottom of the centrifugal filter drum 10, a fan 20 arranged above the inside of the drying drum 13, a plurality of heating tubes 21 arranged inside the drying drum 13 and below the fan 20, and a plurality of exhaust holes with filter screens opened on the drying drum 13. During the rotation of the centrifugal filter drum 10, the fan 20 is used to blow towards the heating tube being heated, so that the hot air is discharged through the exhaust hole, thereby drying the pulp that is being further centrifugally dehydrated, thereby improving its drying and dehydration efficiency.

[0030] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0031] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0032] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A pulping and dewatering device for papermaking, comprising a filter press mechanism (1) and a centrifugal dewatering mechanism (2), characterized in that: The compression mechanism (1) comprises a support frame (3), a filter press drum (4) and a conveying drum (5) arranged in the support rod frame (3); a driving mechanism for driving the filter press drum (4) and the conveying drum (5) is arranged on the outside of the support frame (3); and a collecting box (7) is arranged on the lower end surface of the support frame (3); The centrifugal dehydration mechanism (2) comprises a support base (8), a filter barrel (9) arranged inside the support base (8), a centrifugal filter drum (10) connected to the lower part of the filter barrel (9), and a drive motor (11) arranged in the support base (8) and used to drive the centrifugal filter drum (10) to rotate; a support frame (12) extending to the top of the centrifugal filter drum (10) is arranged on the outside of the filter barrel (9), and a drying drum (13) is arranged on the lower end surface of the support frame (12).

2. A pulping and dewatering device for papermaking according to claim 1, characterized in that: A feed plate (14) is obliquely provided on one side of the support frame (3) away from the filter barrel (9), and the lowest end of the feed plate (14) is connected to the support frame (3). A sliding plate (15) extending to the top of the centrifugal filter cylinder (10) is obliquely provided on one end of the support frame (3) away from the feed plate (14), and the highest end of the sliding plate (15) is connected to the support frame (3).

3. The pulping and dewatering device for papermaking according to claim 1, characterized in that: The driving mechanism comprises a second driving motor (601) fixedly arranged on one side of the support frame (3) and a pulley (602) connected to the output end of the second driving motor (601); one end of the filter press drum (4) passes through the outside of the support frame (3) and is connected to the pulley (602); one end of the conveying drum (5) passes through the outside of the support frame (3) and is connected to the second pulley (603); the pulley (602) and the second pulley (603) are linked via a belt (604).

4. The pulping and dewatering device for papermaking according to claim 1, characterized in that: A drainage groove (16) is provided on the support frame (3), and a drainage box (17) communicating with the drainage groove (16) is provided on the lower end surface of the support frame (3). A drainage pipe (18) extending to the top of the collection box (7) is connected to the drainage box (17) at a side thereof close to the collection box (7) and tilted downward.

5. The pulping and dewatering device for papermaking according to claim 1, characterized in that: The lower end surface of the support base (8) is a cavity structure, the drive motor (11) is located inside the cavity structure, the output end of the drive motor (11) passes through the interior of the filter barrel (9) and is connected to the center of the lower end surface of the centrifugal filter cartridge (10), and heat dissipation holes are provided on the support base (8).

6. The pulping and dewatering device for papermaking according to claim 1, characterized in that: The outer wall of the centrifugal filter cylinder (10) is provided with a plurality of filter holes with filter screens, and the outer sides of the filter barrel (9) and the collection box (7) are both connected to drainage pipes (22) with valves.

7. The pulping and dewatering device for papermaking according to claim 1, characterized in that: The drying cylinder (13) comprises a rotating shaft (19) rotatably connected to the bottom of the centrifugal filter cylinder (10), a fan (20) arranged above the interior of the drying cylinder (13), a plurality of heating tubes (21) arranged inside the drying cylinder (13) and below the fan (20), and a plurality of exhaust holes with filter screens provided on the drying cylinder (13).

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