A drum pulper drum device

Abstract

The invention discloses a drum device of a drum pulper, comprising a drum body, wherein the drum body comprises a prepreg drum, a disintegration drum and a screening drum which are sequentially connected from left to right, and a prepreg main lifting plate and a prepreg auxiliary lifting plate are evenly distributed on the inner wall of the prepreg drum, and the prepreg main lifting plate and the prepreg auxiliary lifting plate are staggered in the circumferential direction and the axial direction; a disintegration main lifting plate and a disintegration auxiliary lifting plate are evenly distributed on the inner wall of the disintegration drum, and the main disintegration lifting plate and the disintegration auxiliary lifting plate are staggered in the circumferential direction and the axial direction; a folding lifting plate and a toothed lifting plate are evenly distributed on the inner wall of the screening drum, and the folding lifting plate and the toothed lifting plate are staggered in the circumferential direction and the axial direction; a discharge drum is integrally formed at the discharge port of the screening drum, and an annular pulp baffle plate and a material guide plate are provided in the discharge drum, and the material guide plate is located on the right side of the annular pulp baffle plate; the surrounding environment is improved, thereby improving the production efficiency and enhancing the production capacity of the equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of pulping equipment and relates to a drum device for a drum pulper. Background Art

[0002] Drum pulper is a replacement product of traditional hydraulic pulper. The main structure of this equipment is a drum device with a slight inclination from the feed end to the discharge end. The front section of the device is the disintegration area, and the rear section is the screening area. During the working process, the drum body rotates at a certain speed, and waste paper raw materials, water and suitable chemicals are continuously added from one end of the drum body and mixed together. The picker inside the drum body continuously picks up and drops the wet waste paper, and slowly moves from the pulping area to the screening area. The impact and friction generated by this action can "gently" loosen the waste paper fibers and better maintain the strength of the fibers; at the same time, the friction and rolling collision between the fibers can efficiently peel off the ink particles, membranes, and hot melt adhesives from the fiber surface. The pulping effect, that is, the degree of dispersion, depends on the raw materials, the type of chemicals used, the disintegration time and the intensity. The drum pulper integrates pulping and screening, and is particularly suitable for pulping unsorted waste paper raw materials. It has great economic and social benefits in expanding the recovery and utilization of secondary fibers, reducing environmental pollution, saving energy, realizing the localization of papermaking equipment, and saving foreign exchange.

[0003] The drum body of the drum pulper is mainly divided into three parts: the pre-preg area, the disintegration area and the screening area. The interior of the drum mainly includes: lifting plate, diagonal support plate, compartment plate, discharge hopper, spiral slag discharge plate, etc. The traditional drum pulper has poor disintegration and pulping effect, and the screening section screening and slag washing efficiency is low. Moreover, its spiral outlet structure not only pollutes the on-site environment due to splashing of discharged slag, but also causes a large loss of fibers, affecting the equipment production capacity. Therefore, the traditional drum pulper is difficult to meet the current production needs. Summary of the invention

[0004] The object of the present invention is to provide a drum device for a drum pulper; the technical solution adopted to achieve the above object is:

[0005] A drum device of a drum pulper comprises a drum body, wherein the drum body comprises a prepreg cylinder, a disintegration cylinder and a screening cylinder which are sequentially connected from left to right, and a prepreg main lifting plate and a prepreg auxiliary lifting plate are evenly distributed on the inner wall of the prepreg cylinder, and the prepreg main lifting plate and the prepreg auxiliary lifting plate are staggered in the circumferential direction and the axial direction; a disintegration main lifting plate and a disintegration auxiliary lifting plate are evenly distributed on the inner wall of the disintegration cylinder, and the main disintegration lifting plate and the disintegration auxiliary lifting plate are staggered in the circumferential direction and the axial direction; a folding lifting plate and a toothed lifting plate are evenly distributed on the inner wall of the screening cylinder, and the folding lifting plate and the toothed lifting plate are staggered in the circumferential direction and the axial direction; a discharge cylinder is integrally provided at the discharge port of the screening cylinder, and an annular pulp baffle plate and a material guide plate are provided in the discharge cylinder, and the material guide plate is located on the right side of the annular pulp baffle plate.

[0006] Preferably, the prepreg auxiliary lifting plate and the shredding auxiliary lifting plate have the same structure and are collectively referred to as auxiliary lifting plates, the auxiliary lifting plate includes a first herringbone plate frame, and the two branches of the first herringbone plate frame are correspondingly fixed on the inner wall of the drum cylinder; the prepreg main lifting plate and the shredding main lifting plate have the same structure and are collectively referred to as main lifting plates, the main lifting plate includes a second herringbone plate frame, the two branches of the second herringbone plate frame are correspondingly fixed on the inner wall of the drum cylinder, and a heightening plate is provided at the end of the second herringbone plate frame.

[0007] Preferably, the folding lifting plate includes a folding plate fixed correspondingly on the inner wall of the drum cylinder, the inner end of the folding plate is a bending portion, and a reinforcing rib plate is provided between the folding plate and the inner wall of the drum cylinder; the tooth-type lifting plate includes a third herringbone plate frame, two branches of the third herringbone plate frame are correspondingly fixed on the inner wall of the drum cylinder, and a heightened relief tooth is provided at the end of the third herringbone plate frame.

[0008] Preferably, the material guide plate is a herringbone plate, and one of the two branch plates of the herringbone plate extends to the left and the other extends to the right to form a material outlet.

[0009] Preferably, a prepreg bulkhead is provided in the middle of the prepreg cylinder to divide the prepreg cylinder into a first prepreg area and a second prepreg area, a triangular through hole is provided in the middle of the prepreg bulkhead, and arc chamfers are provided at the three corners of the triangular through hole.

[0010] Preferably, a plurality of crushing partition plates are arranged at intervals in the crushing cylinder to divide the crushing cylinder into a plurality of crushing areas, a first special-shaped through hole is arranged in the middle of the crushing partition plate, the two corresponding ends of the first special-shaped through hole are both arcuate edges, and the central angle of one arcuate edge is greater than the central angle of the other arcuate edge, a straight edge is arranged between the corresponding ends of the two arcuate edges, and an arc chamfer is arranged at the connection between the straight edge and the arcuate edge for transition connection.

[0011] Preferably, the first special-shaped through hole is eccentrically arranged on the crushing bulkhead plate, the center of the crushing bulkhead plate is biased toward the arc side with a small central angle, and a D-shaped tooth plate is provided at the end of the crushing main lifting plate.

[0012] Preferably, a plurality of screening compartments are arranged at intervals in the screening cylinder to divide the screening cylinder into a plurality of screening areas, a second special-shaped through hole is arranged in the middle of the screening cylinder, one end of the second special-shaped through hole is an arc-shaped edge, and the corresponding other end is an open end, straight edges are arranged at both ends of the arc-shaped edge, and an arc chamfer is arranged at the connection between the straight edge and the arc-shaped edge for transition connection.

[0013] Preferably, a cylinder partition is provided on the left or right side of the connection between the prepreg cylinder and the disintegration cylinder, and on the left or right side of the connection between the disintegration cylinder and the screening cylinder, and a material passing hole is provided on the cylinder partition.

[0014] Preferably, a gear ring or a transmission ring is provided on the drum body for driving the drum body to rotate.

[0015] The beneficial effects of the present invention are as follows: (1) the material lifting volume is increased by the cooperation of the main lifting plate and the auxiliary lifting plate in the prepreg cylinder and the disintegration cylinder, and the mixing degree of the waste paper raw material, water and suitable chemicals is enhanced, thereby further improving the disintegration effect;

[0016] (2) A D-shaped tooth plate is provided at the end of the main lifting plate to improve the crushing and decomposition strength of the slurry;

[0017] (3) The coordinated action of the folded lifting plate and the toothed lifting plate in the screening cylinder can more fully disperse the materials, break up the agglomerated materials, and make the materials more thoroughly broken down;

[0018] (4) The setting of the annular pulp baffle and guide plate improves the slag washing effect, reduces the loss of fiber, and improves the surrounding environment, thereby improving production efficiency and enhancing the production capacity of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 Middle section view along AA direction;

[0021] Figure 3 for Figure 1 Middle section view along BB direction;

[0022] Figure 4 for Figure 1 Middle section view along CC direction;

[0023] Figure 5 for Figure 1 M-direction view of the middle discharge cylinder. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 5 As shown, a drum pulper drum device includes a drum body, wherein the drum body includes a prepreg drum body 2, a disintegration drum body 6 and a screening drum body 9 which are sequentially connected from left to right, and a prepreg main lifting plate 15 and a prepreg auxiliary lifting plate 18 are evenly distributed on the inner wall of the prepreg drum body 2, and the prepreg main lifting plate 15 and the prepreg auxiliary lifting plate 18 are staggered in the circumferential direction and the axial direction; a disintegration main lifting plate 22 and a disintegration auxiliary lifting plate 20 are evenly distributed on the inner wall of the disintegration drum body 6, and the disintegration main lifting plate 22 and the ... The main lifting plates 22 and the auxiliary lifting plates 20 for crushing are arranged alternately in the circumferential and axial directions; the folding lifting plates 26 and the toothed lifting plates 27 are evenly distributed on the inner wall of the screening cylinder 9, and the folding lifting plates 26 and the toothed lifting plates 27 are arranged alternately in the circumferential and axial directions; a discharge cylinder 14 is integrally formed at the discharge port of the screening cylinder 9, and an annular pulp baffle plate 10 and a material guide plate 13 are arranged in the discharge cylinder 14, and the material guide plate 13 is located on the right side of the annular pulp baffle plate 10.

[0026] like Figure 2 and Figure 3 As shown, the prepreg auxiliary lifting plate 18 has the same structure as the shredding auxiliary lifting plate 20, and for the convenience of description, they are collectively referred to as auxiliary lifting plates, the auxiliary lifting plate includes a first herringbone plate frame, and the two branches of the first herringbone plate frame are correspondingly fixed on the inner wall of the drum cylinder; the prepreg main lifting plate 15 has the same structure as the shredding main lifting plate 22, and for the convenience of description, they are collectively referred to as main lifting plates, the main lifting plate includes a second herringbone plate frame 17, 23, and the two branches of the second herringbone plate frame 17, 23 are correspondingly fixed on the inner wall of the drum cylinder, and at the same time, heightening plates 16, 21 are provided at the ends of the second herringbone plate frames 17, 23.

[0027] like Figure 4 As shown, the folding lifting plate 26 includes a folding plate fixed correspondingly on the inner wall of the drum cylinder, the inner end of the folding plate is a bending portion, and a reinforcing rib plate is provided between the folding plate and the inner wall of the drum cylinder; the tooth-type lifting plate 27 includes a third herringbone plate frame 29, two branches of the third herringbone plate frame 29 are fixed correspondingly on the inner wall of the drum cylinder, and at the end of the third herringbone plate frame 29, a heightened relief tooth 28 is provided.

[0028] like Figure 1 and Figure 5 As shown, the guide plate 13 is a herringbone plate. Among the two branch plates of the herringbone plate, the branch plate 11 extends to the left, and the branch plate 12 extends to the right to form a discharge port.

[0029] Meanwhile, a prepreg bulkhead 1 is provided in the middle of the prepreg cylinder 2 to divide the prepreg cylinder 2 into a first prepreg area and a second prepreg area. A triangular through hole 19 is provided in the middle of the prepreg bulkhead 1, and arc chamfers are provided at the triangles of the triangular through hole 19.

[0030] A plurality of crushing partition plates 5 are arranged at intervals in the crushing cylinder 6 to divide the crushing cylinder into a plurality of crushing areas, a first special-shaped through hole 25 is arranged in the middle of the crushing partition plate 5, the two corresponding ends of the first special-shaped through hole 25 are both arcuate edges, and the central angle of one arcuate edge is greater than the central angle of the other arcuate edge, a straight edge is arranged between the corresponding ends of the two arcuate edges, and an arc chamfer is arranged at the connection between the straight edge and the arcuate edge for transition connection; the first special-shaped through hole 25 is eccentrically arranged on the crushing partition plate 5, and the center of the crushing partition plate 5 is biased toward the side of the arcuate edge with a small central angle, and a D-shaped tooth plate 24 is arranged at the end of the crushing main lifting plate 22.

[0031] A plurality of screening compartment plates 8 are arranged at intervals in the screening cylinder 9 to divide the screening cylinder 9 into a plurality of screening areas. A second special-shaped through hole 30 is arranged in the middle of the screening cylinder 9. One end of the second special-shaped through hole 30 is an arcuate edge, and the corresponding other end is an open end. Straight edges are arranged at the two ends of the arcuate edge, and an arc chamfer is arranged at the connection between the straight edge and the arcuate edge for transition connection.

[0032] Cylinder partitions 3, 7 are provided on the left or right side of the connection between the prepreg cylinder 2 and the disintegration cylinder 6, and on the left or right side of the connection between the disintegration cylinder 6 and the screening cylinder 9, and material passing holes are provided on the cylinder partitions 3, 7.

[0033] A gear ring or a transmission ring 4 is provided on the drum body for driving the drum body to rotate, thereby driving the drum body to rotate under the support and transmission action of the supporting wheel.

[0034] When the present invention is working, the present invention is supported and driven by two front and rear supporting wheel support mechanisms as a whole, and the overall feeding end is slightly higher than the discharging end. Waste paper raw materials, water and suitable chemicals are continuously added at the feeding end and fully acted on in the prepreg cylinder 2 under the lifting and dropping action of the prepreg main lifting plate 15 and the prepreg auxiliary lifting plate 18, and then enter the shredding cylinder 6. The impact and friction generated by the shredding main lifting plate 22 and the shredding auxiliary lifting plate 20 can "gently" loosen the waste paper fibers and better maintain the strength of the fibers; at the same time, the friction and rolling collision between the fibers can efficiently peel off the ink particles, membranes, and hot melt adhesives from the fiber surface, and slowly move toward the screening cylinder 9, and are fully screened under the action of the folding lifting plate 26 and the toothed lifting plate 27, and finally discharged through the discharging port formed by the herringbone plate.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so as to describe the embodiments of the present application described herein.

[0037] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

Claims

1. A drum pulper drum device, comprising a drum body, wherein the drum body comprises a prepreg body, a disintegration body and a screening body connected in sequence from left to right, characterized in that: The inner wall of the prepreg cylinder is evenly distributed with a prepreg main lifting plate and a prepreg auxiliary lifting plate, and the prepreg main lifting plate and the prepreg auxiliary lifting plate are staggered in the circumferential and axial directions; the inner wall of the crushing cylinder is evenly distributed with a crushing main lifting plate and a crushing auxiliary lifting plate, and the crushing main lifting plate and the crushing auxiliary lifting plate are staggered in the circumferential and axial directions; the inner wall of the screening cylinder is evenly distributed with a folding lifting plate and a toothed lifting plate, and the folding lifting plate and the toothed lifting plate are staggered in the circumferential and axial directions; a discharge cylinder is integrally formed at the discharge port of the screening cylinder, and an annular slurry baffle plate and a material guide plate are provided in the discharge cylinder, and the material guide plate is located on the right side of the annular slurry baffle plate; The folding lifting plate includes a folding plate fixed to the inner wall of the drum cylinder, the inner end of the folding plate is a bent portion, and a rib plate is provided between the folding plate and the inner wall of the drum cylinder; the toothed lifting plate includes a third herringbone plate frame, two branches of the third herringbone plate frame are fixed to the inner wall of the drum cylinder, and a heightened relief tooth is provided at the end of the third herringbone plate frame; The guide plate is a herringbone plate, one of the two branch plates of the herringbone plate extends to the left and the other extends to the right to form a discharge port. The annular pulp baffle plate and the guide plate are arranged to improve the slag washing effect, reduce the loss of fibers and improve the surrounding environment. A plurality of disintegration partitions are arranged in the disintegration cylinder to divide the disintegration cylinder into a plurality of disintegration zones, a first special-shaped through hole is arranged in the middle of the disintegration partition, both corresponding ends of the first special-shaped through hole are arcuate edges, and the center angle of one arcuate edge is greater than the center angle of the other arcuate edge, a straight edge is arranged between the corresponding ends of the two arcuate edges, and an arc chamfer is arranged at the connection between the straight edge and the arcuate edge for transition connection; The first special-shaped through hole is eccentrically arranged on the crushing bulkhead plate, the center of the crushing bulkhead plate is biased toward the arc side with a small central angle, and a D-shaped tooth plate is arranged at the end of the crushing main lifting plate.

2. The drum pulper drum device according to claim 1, characterized in that: The prepreg auxiliary lifting plate has the same structure as the shredding auxiliary lifting plate and is collectively referred to as the auxiliary lifting plate. The auxiliary lifting plate includes a first herringbone plate frame, and the two branches of the first herringbone plate frame are correspondingly fixed on the inner wall of the drum cylinder; the prepreg main lifting plate has the same structure as the shredding main lifting plate and is collectively referred to as the main lifting plate. The main lifting plate includes a second herringbone plate frame, and the two branches of the second herringbone plate frame are correspondingly fixed on the inner wall of the drum cylinder, and a heightening plate is provided at the end of the second herringbone plate frame.

3. The drum pulper drum device according to any one of claims 1 to 2, characterized in that: A prepreg bulkhead is arranged in the middle of the prepreg cylinder to divide the prepreg cylinder into a first prepreg area and a second prepreg area. A triangular through hole is arranged in the middle of the prepreg bulkhead, and arc chamfers are arranged at the triangular parts of the triangular through hole.

4. The drum pulper drum device according to claim 3, characterized in that: A plurality of screening compartments are arranged at intervals in the screening cylinder to divide the screening cylinder into a plurality of screening areas. A second special-shaped through hole is arranged in the middle of the screening cylinder. One end of the second special-shaped through hole is an arc-shaped edge, and the corresponding other end is an open end. Straight edges are arranged at the two ends of the arc-shaped edge, and an arc chamfer is arranged at the connection between the straight edge and the arc-shaped edge for transition connection.

5. The drum pulper drum device according to claim 4, characterized in that: A cylinder partition is provided on the left or right side of the connection between the prepreg cylinder and the disintegration cylinder, and on the left or right side of the connection between the disintegration cylinder and the screening cylinder, and a material passing hole is provided on the cylinder partition.

6. The drum pulper drum device according to claim 5, characterized in that: A gear ring or a transmission ring is provided on the drum body for driving the drum body to rotate.

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