Deslagging cylinder of drum type pulper

Abstract

The utility model relates to the technical field of drum type pulpers, in particular to a deslagging cylinder of a drum type pulper, a deslagging partition plate is arranged in the deslagging cylinder to divide the deslagging cylinder into a screening area on the inner side and a deslagging area on the outer side, a water return opening is formed in the deslagging partition plate, and a water return opening is formed in the deslagging partition plate. The water return mechanism guides slurry flowing into the slag discharging area back to the screening area for utilization, slurry loss is reduced, and the utilization rate of raw materials is increased; the deslagging blades are further arranged in the deslagging cylinder, and the deslagging blades are matched to quickly discharge waste residues in the running process of the drum type pulper, so that the deslagging speed is increased, and the productivity is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drum type pulper, specifically relates to a slagging cylinder of drum type pulper. BACKGROUND

[0002] The drum type pulper is a new type, advanced waste paper pulping equipment, and is a replacement product of the traditional hydraulic pulper. The main structure of the equipment is a specially designed drum device with a slight inclination, the front section of which is a disintegration zone, and the rear section is a screening zone. In the working process, the drum rotates at a certain speed, the waste paper raw materials, water and suitable chemicals are continuously added from the front end of the drum, and the mixture is mixed together, the wet waste paper is continuously picked up by the scraper inside the drum and falls, and slowly moves from the pulping zone to the screening zone. The impact and friction generated by this action can "gently" disintegrate the waste paper fibers, and the strength of the fibers is well maintained; at the same time, the friction and rolling impact between the fibers can efficiently strip the ink particles, film and hot melt adhesive from the surface of the fibers. The pulping effect, i.e. the dispersion degree, depends on the raw materials, the type of chemicals used, the disintegration time and intensity. The drum type pulper integrates pulping and screening, and is particularly suitable for pulping of unsorted waste paper raw materials. It has great economic and social benefits for expanding secondary fiber recycling, utilization, reducing environmental pollution, saving energy, realizing papermaking equipment localization, and saving foreign exchange.

[0003] The drum type pulper mainly comprises a feeding hopper mechanism, a rotating cylinder assembly, a supporting roller mechanism, a gear transmission mechanism, a gear ring mechanism and a pulp pool upper cover, and the cylinder assembly plays a role of pre-soaking, disintegration and screening of materials, and is a main component of the equipment. The cylinder assembly is divided into three regions: a pre-soaking zone, a disintegration zone and a screening zone, and each region is mainly composed of a material lifting plate, an inclined support plate, a partition plate and a rope guide plate, which are then combined and welded with the partition plate on the inner wall of the cylinder to stabilize and strengthen the rotating cylinder. The pre-soaking zone and the disintegration zone mainly play the roles of pre-soaking and disintegration of materials, and the screening zone mainly performs dilution and screening of the disintegrated materials, and separates and discharges the dregs. A small amount of pulp water does not flow out of the screening zone screen hole and then flows out through the discharge port of the drum type pulper, so the existing discharge port of the drum type pulper cannot meet the normal use. UTILITY MODEL CONTENTS

[0004] The problem to be solved by the utility model is to provide a slagging cylinder of drum type pulper, which can make part of the pulp water flow back to the screening zone at the discharge port of the drum type pulper, and help the waste residue to be quickly discharged from the slagging cylinder.

[0005] In order to solve the above technical problems, the technical scheme adopted by the utility model is: a slag discharging cylinder of a drum type pulper, a slag discharging baffle is arranged in the slag discharging cylinder, the slag discharging baffle divides the slag discharging cylinder into a screening area on the inside and a slag discharging area on the outside, a backwater opening is arranged on the slag discharging baffle, a backwater mechanism is arranged at each backwater opening of the slag discharging baffle in the slag discharging area, the backwater mechanism comprises a backwater plate, the backwater plate is arranged on the inner wall of the slag discharging cylinder and one end of the backwater plate is connected with the slag discharging baffle, a side edge of the backwater plate is provided with a side plate, and the backwater plate and the side plate combine to form a backwater channel which communicates with the backwater opening.The pulp liquid in the slag discharging area can flow back to the screening area through the backwater channel and the backwater opening for reuse, the utilization efficiency of the pulp liquid is improved, and the waste amount of the pulp liquid is reduced.

[0006] As a preferred scheme, the backwater plate is an arc-shaped plate, and the backwater channel extends along the circumference of the slag discharging cylinder.

[0007] As a preferred scheme, the backwater mechanism further comprises a water guide strip, the water guide strip is arranged at the end of the backwater plate, and the water guide strip is connected with the backwater plate and forms a backwater guide-in channel with the backwater plate. The water guide strip and the backwater plate cooperate to form the backwater guide-in channel at the end of the backwater channel, and the flow guiding effect on the pulp liquid in the slag discharging area is further improved.

[0008] As a preferred scheme, the backwater mechanism further comprises an anti-pinch strip, and the anti-pinch strip is arranged in the backwater guide-in channel. The anti-pinch strip is arranged in the backwater guide-in channel and can effectively prevent the waste slag from flowing back into the screening area.

[0009] As a preferred scheme, the cylinder wall of the slag discharging cylinder is further provided with a plurality of slag discharging blades which are arranged and distributed, the slag discharging blades are located in the slag discharging area, and two adjacent slag discharging blades in the circumferential direction and the cylinder wall form a slag discharging channel. The slag discharging blades are arranged, and the waste slag in the slag discharging area can be quickly discharged during the operation of the drum type pulper, which is of great significance to the improvement of production efficiency.

[0010] As a preferred scheme, the slag discharging blades are spiral plates, and the spiral side edges of the slag discharging blades are connected with the inner wall of the slag discharging cylinder.

[0011] Compared with the prior art, the utility model has the beneficial effects that: the backwater mechanism arranged in the slag discharging cylinder of the drum type pulper can guide the pulp liquid flowing into the slag discharging area back to the screening area for reuse, reduces the loss of the pulp liquid, and increases the utilization rate of the raw materials; the slag discharging blades arranged in the slag discharging cylinder can quickly discharge the waste slag during the operation of the drum type pulper, improve the slag discharging speed, and further improve the production rate. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0013] Figure 1 It is a structural schematic diagram of the residue discharging cylinder;

[0014] Figure 2 It is a structural schematic diagram of the residue discharging cylinder along the M direction; Figure 1

[0015] Figure 3 It is a structural schematic diagram of the residue discharging cylinder along the N direction; Figure 2

[0016] In the figure: 1, residue discharging cylinder, 2, residue discharging partition, 3, backwater port, 4, backwater plate, 5, side plate, 6, water guide strip, 7, anti-pinch strip, 8, residue discharging blade. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0018] The present application provides a residue discharging cylinder of drum-type pulper, to solve the technical problem of waste caused by pulp discharge at the residue discharging port of the existing drum-type pulper, and to help the waste residue to be quickly discharged from the residue discharging cylinder.

[0019] Please refer to Figures 1-3 The residue discharging cylinder of drum-type pulper in the embodiment is provided with a residue discharging partition 2 in the residue discharging cylinder 1, which divides the residue discharging cylinder 1 into a screening area on the inner side and a residue discharging area on the outer side. The residue discharging partition 2 is provided with backwater ports 3. Each backwater port 3 on the residue discharging partition 2 is provided with a backwater mechanism in the residue discharging area. The backwater mechanism includes a backwater plate 4, which is arranged on the inner wall of the residue discharging cylinder 1 and one end of the backwater plate 4 is connected with the residue discharging partition 2. The side edge of the backwater plate 4 is provided with a side plate 5. The backwater plate 4 and the side plate 5 are combined to form a backwater channel which is communicated with the backwater ports 3.

[0020] ​​Specifically, the residue discharge partition plate 2 divides the residue discharge cylinder 1 into a screening area and a residue discharge area. The screening area is located on the inner side of the residue discharge partition plate 2 and close to the inside of the drum-type pulper. The residue discharge area is located on the outer side of the residue discharge partition plate 2 and close to the outside of the drum-type pulper. The residue discharge partition plate 2 is provided with a water return port 3. The residue discharge area is provided with a water return mechanism corresponding to each water return port 3. The pulp liquid flowing into the residue discharge area can flow back to the screening area through the water return mechanism and the water return port 3, thereby reducing the discharge amount of the pulp liquid from the residue discharge cylinder 1 and reducing the waste amount of the pulp liquid.

[0021] The water return mechanism includes a water return plate 4. The water return plate 4 is arranged on the inner wall of the residue discharge cylinder 1. One end of the water return plate 4 is connected to the water return port 3 of the residue discharge partition plate 2. The side surface of the water return plate 4 is provided with a side plate 5. The side plate 5 is perpendicular to the water return plate 4 or inclined relative to the side plate 5. The side plate 5 and the water return plate 4 combine to form a water return channel. The water return channel extends along the plate surface of the side plate 5 and is in communication with the water return port 3. The pulp liquid in the residue discharge area can enter the water return port 3 and the screening area along the water return channel when entering the water return channel.

[0022] The embodiment adjusts the original residue discharge partition plate 2 of the residue discharge cylinder 1. The water return port 3 is arranged on the residue discharge partition plate 2. The water return mechanism is arranged corresponding to each water return port 3. The pulp liquid flowing into the residue discharge area can flow back to the screening area for reuse, thereby improving the utilization rate of the pulp.

[0023] In some embodiments, the water return plate 4 is an arc-shaped plate. When the water return plate 4 is an arc-shaped plate along the circumference of the residue discharge cylinder 1, the water return channel also extends along the circumference of the residue discharge cylinder 1. When the water return plate 4 is an arc-shaped plate spirally extending along the circumference of the residue discharge cylinder 1 around the central axis of the residue discharge cylinder 1, the water return channel also has a spiral shape.

[0024] Please refer to Figure 3 In some embodiments, the water return mechanism further includes a water guide strip 6. The water guide strip 6 is arranged at the end of the water return plate 4. The water guide strip 6 is connected to the water return plate 4 and forms a water return guide channel with the water return plate 4. Specifically, the water guide strip 6 is located at the end of the water return plate 4. The water guide strip 6 cooperates with the water return plate 4 to form a water return guide channel. Compared with the side plate 5, the water guide strip 6 is more inclined relative to the residue discharge partition plate 2. The water return guide channel has a flared shape. The structure of the water return guide channel is more conducive to the pulp liquid in the residue discharge area to enter, thereby facilitating the pulp liquid to enter the water return channel and flow back to the screening area.

[0025] The backwater passage and the backwater introduction passage are arranged in the residue discharging area, which is beneficial to the backflow of the slurry to the screening area, but inevitably leads to some waste residues back to the screening area. In some embodiments, the backwater mechanism further comprises an anti-pinch strip 7 arranged in the backwater introduction passage. Specifically, the anti-pinch strip 7 is arranged in the backwater passage and located between the water guide strip 6 and the residue discharging partition plate 2. The slurry can pass through the gaps between the anti-pinch strip 7 and the water guide strip 6 and between the anti-pinch strip 7 and the residue discharging partition plate 2, while the waste residues cannot pass through, so as to avoid the waste residues entering the screening area through the backwater introduction passage and the backwater passage.

[0026] In order to improve the residue discharging speed of the residue discharging cylinder 1, please refer to Figure 1 In some embodiments, the residue discharging cylinder 1 is further provided with residue discharging blades 8 distributed on the cylinder wall, and the residue discharging blades 8 are located in the residue discharging area. Two adjacent residue discharging blades 8 and the cylinder wall form a residue discharging passage in the circumferential direction.

[0027] Specifically, the residue discharging blades 8 are distributed on the cylinder wall of the residue discharging cylinder 1 in the residue discharging area, and the residue discharging blades 8 are distributed along the circumferential direction of the residue discharging cylinder 1 and also distributed along the axial direction of the residue discharging cylinder 1. In the circumferential direction, any two adjacent residue discharging blades 8 and the cylinder wall of the residue discharging cylinder 1 form a residue discharging passage. Under the rapid operation of the drum-type pulper, the waste residues can be quickly discharged through each residue discharging passage, so as to improve the residue discharging speed and the production efficiency.

[0028] In further embodiments, the residue discharging blade 8 is in the shape of a spiral plate, and the spiral side of the residue discharging blade 8 is connected with the inner wall of the residue discharging cylinder 1. When the residue discharging blade 8 is installed on the inner wall of the residue discharging cylinder 1, the rotation direction of the residue discharging blade 8 is the same as the rotation direction of the drum-type pulper, so as to improve the residue discharging speed.

[0029] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A discharge cylinder of a drum pulper, a discharge partition (2) is arranged in the discharge cylinder (1), the discharge partition (2) divides the discharge cylinder (1) into a screening area on the inner side and a discharge area on the outer side, characterized in that: The backwater opening (3) is arranged on the deslagging partition (2), and a backwater mechanism is arranged at each backwater opening (3) corresponding to the deslagging partition (2) in the deslagging area. The backwater mechanism comprises a backwater plate (4), one end of the backwater plate (4) is connected with the deslagging partition (2), and the side edge of the backwater plate (4) is provided with a side plate (5). The backwater plate (4) and the side plate (5) are combined to form a backwater channel which is communicated with the backwater opening (3).

2. A discharge cylinder for a drum pulper as claimed in claim 1, characterized in that: The backwater plate (4) is an arc-shaped plate, and the backwater channel extends along the circumference of the deslagging cylinder (1).

3. A discharge cylinder for a drum pulper as claimed in claim 1, characterized in that: The backwater mechanism further comprises a water guide strip (6), and the water guide strip (6) is arranged at the end of the backwater plate (4). The water guide strip (6) is connected with the backwater plate (4) and forms a backwater guide channel with the backwater plate (4).

4. A discharge cylinder for a drum pulper as claimed in claim 3, wherein: The backwater mechanism further comprises an anti-pinch strip (7), and the anti-pinch strip (7) is arranged in the backwater guide channel.

5. A discharge cylinder for a drum pulper according to any one of claims 1 to 4, characterized in that: The deslagging cylinder (1) is further provided with deslagging blades (8) which are arranged on the cylinder wall and located in the deslagging area. Two adjacent deslagging blades (8) and the cylinder wall form a deslagging channel.

6. A discharge cylinder for a drum pulper as claimed in claim 5, wherein: The deslagging blade (8) is a spiral plate, and the spiral side edge of the deslagging blade (8) is connected with the inner wall of the deslagging cylinder (1).

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