Energy-saving and environmentally friendly mechanical pulp pretreatment equipment

Abstract

The utility model discloses an energy-saving and environmentally friendly mechanical pulp pretreatment device, and its technical solution includes: a pretreatment box and a cutting wheel, a feed hopper is installed on the top of the pretreatment box, cutting wheels are installed on both sides of the bottom of the feed hopper inside the pretreatment box, a support plate is installed on the bottom of the cutting wheel inside the pretreatment box, a support column is installed on the support plate, a filter is installed on the top of the support column on both sides, a crushing wheel is installed on both sides of the bottom of the filter inside the pretreatment box, a spring A is installed on the outer surface of the support column at the bottom of the filter, and a spring B is installed on the outer surface of the support column at the bottom of the support plate. An energy-saving and environmentally friendly mechanical pulp pretreatment device solves the problem that the existing mechanical pulp pretreatment device adopts a single crushing of the mechanical pulp raw material, the volume of the crushed mechanical pulp raw material is large, and it is inconvenient to perform subsequent grinding treatment on it, and reduces the volume of the mechanical pulp raw material, thereby ensuring the grinding effect of the mechanical pulp.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to energy-saving and environment-friendly mechanical pulp pretreatment equipment. Background Art

[0002] Papermaking refers to a technical method in which fiber raw materials such as wood, straw, reeds, and bagasse are treated with chemical concentrates to first be processed into pulp and then copied into paper pages. Paper is the most commonly used item in our daily life. Whether reading, reading newspapers, writing, or painting, we have to come into contact with paper. Paper is also indispensable in industrial, agricultural, and national defense industrial production. Today's papermaking process has long been mechanized, using mechanical grinding force to obtain wood fiber, also known as mechanical pulp. Pretreatment equipment is required to cut mechanical pulp during production.

[0003] After searching, it was found that the pretreatment device in the prior art, such as a pulping device for papermaking and printing disclosed in publication number CN212801007U, drives the crushing device to operate by rotating the motor group, so that several crushing devices operate with each other, and realize the crushing of pulps of different sizes and thicknesses, effectively improving the crushing degree of the pulp, reducing the pulping time, avoiding the wear of the pulping equipment due to long-term use, and at the same time increasing the stirring effect of the pulping.

[0004] The above-mentioned mechanical pulp pretreatment device adopts a single crushing of the mechanical pulp raw material. The volume of the crushed mechanical pulp raw material is large, which is inconvenient for subsequent pulping treatment. Therefore, we propose an energy-saving and environmentally friendly mechanical pulp pretreatment equipment. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving and environmentally friendly mechanical pulp pretreatment equipment, which has the effect of crushing the mechanical pulp raw materials multiple times, so as to solve the problem that the existing mechanical pulp pretreatment device adopts single crushing for the mechanical pulp raw materials, and the volume of the crushed mechanical pulp raw materials is large, which is inconvenient for subsequent pulping treatment.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an energy-saving and environmentally friendly mechanical pulp pretreatment equipment, comprising a pretreatment box and a cutting wheel, wherein a feed hopper is installed on the top of the pretreatment box, and cutting wheels are installed on both sides of the bottom of the feed hopper inside the pretreatment box, a support plate is installed inside the pretreatment box at the bottom of the cutting wheel, support columns are installed inside the support plate, filter screens are installed on the top of the support columns on both sides, and crushing wheels are installed on both sides of the bottom of the filter screen inside the pretreatment box.

[0007] Preferably, the outer surface of the cutting wheel is provided with a cutting edge, and the outer surface of the crushing wheel is provided with crushing teeth.

[0008] Preferably, a spring A is installed on the outer surface of the support column located at the bottom of the filter screen, and a spring B is installed on the outer surface of the support column located at the bottom of the support plate.

[0009] Preferably, material separation plates are installed inside the pretreatment box near both sides of the filter screen, and a guide plate is installed at the bottom of the pretreatment box near one side of the rotating shaft.

[0010] Preferably, a driving motor is installed in the middle of the bottom of the pretreatment box, a rotating shaft is installed on the output shaft of the driving motor, and a swing rod is installed on the outer surface of the rotating shaft near the top.

[0011] Preferably, blades A are installed on both sides of the outer surface of the rotating shaft, and blades B are installed on the top and bottom of blade A.

[0012] Preferably, partitions are installed at the top and bottom of the blade A inside the pretreatment box, and the partitions, blade A and blade B are arranged at an angle.

[0013] Preferably, discharge hoppers are installed on both sides of the bottom of the pretreatment box, and support frames are installed at the four corners of the bottom of the pretreatment box.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model achieves the effect of multiple crushing of mechanical pulp raw materials by arranging cutting wheels, filter screens and crushing wheels, so as to solve the problem that the existing mechanical pulp pretreatment device adopts single crushing of mechanical pulp raw materials, and the volume of the mechanical pulp raw materials after crushing is large, which is inconvenient for subsequent refining treatment. The volume of the mechanical pulp raw materials is reduced, thereby ensuring the refining effect of the mechanical pulp.

[0016] 2. The utility model achieves the effect of stirring and cutting the mechanical pulp raw materials by setting a rotating shaft, blade A and blade B, so as to solve the problem that the existing mechanical pulp raw materials are still large in volume after crushing, which is inconvenient for subsequent fine grinding mechanisms to fine grind them, thus affecting the mechanical pulp refining efficiency, thereby improving the mechanical pulp refining efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 for Figure 2 The enlarged structural diagram of A;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of B.

[0021] Figure numerals: 1. pretreatment box; 2. discharge hopper; 3. support frame; 4. feed hopper; 5. cutting blade; 6. rotating shaft; 7. blade A; 8. guide plate; 9. driving motor; 10. blade B; 11. partition; 12. filter; 13. cutting wheel; 14. spring A; 15. swing rod; 16. spring B; 17. support plate; 18. support column; 19. crushing wheel; 20. dividing plate; 21. crushing teeth. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1-Figure 4 As shown, in order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving and environmentally friendly mechanical pulp pretreatment equipment, including a pretreatment box 1 and a cutting wheel 13, a feed hopper 4 is installed on the top of the pretreatment box 1, and cutting wheels 13 are installed on both sides of the bottom of the feed hopper 4 inside the pretreatment box 1, and the mechanical pulp raw material is preliminarily cut by the set cutting wheel 13, a support plate 17 is installed at the bottom of the cutting wheel 13 inside the pretreatment box 1, a support column 18 is installed inside the support plate 17, and a filter screen 12 is installed on the top of the support columns 18 on both sides, and crushing wheels 19 are installed on both sides of the bottom of the filter screen 12 inside the pretreatment box 1 to cut the mechanical pulp raw material again, and a cutting blade 5 is provided on the outer surface of the cutting wheel 13. A crushing tooth 21 is provided on the outer surface of 19, a spring A14 is installed on the outer surface of the support column 18 at the bottom of the filter 12, a spring B16 is installed on the outer surface of the support column 18 at the bottom of the support plate 17, a dividing plate 20 is installed on both sides of the pretreatment box 1 near the filter 12, a guide plate 8 is installed on one side of the bottom of the pretreatment box 1 near the rotating shaft 6, a driving motor 9 is installed in the middle of the bottom of the pretreatment box 1, a rotating shaft 6 is installed on the output shaft of the driving motor 9, and a swing rod 15 is installed on the outer surface of the rotating shaft 6 near the top, and the support column 18 is squeezed by the swing rod 15, thereby driving the filter 12 to swing, discharge hoppers 2 are installed on both sides of the bottom of the pretreatment box 1, and support frames 3 are installed at the four corners of the bottom of the pretreatment box 1.

[0025] The working principle of an energy-saving and environmentally friendly mechanical pulp pretreatment equipment based on Example 1 is: after the utility model is installed, the raw materials for mechanical pulp production are transported from the feed hopper 4 to the pretreatment box 1, and the cutting wheel 13 is started. The raw materials for mechanical pulp production are preliminarily cut by the cutting wheel 13 and the cutting blade 5, and the cut raw materials fall to the top of the filter screen 12. At the same time, the drive motor 9 is started, and the swing rod 15 is driven to rotate by the drive motor 9, and the support column 18 is driven to shake by the swing rod 15. At the same time, the filter screen 12 is driven to swing by the action of the spring A14 and the spring B16, and the raw materials are screened by the filter screen 12. The oversized raw materials fall to the top of the crushing wheel 19, and are screened again by the crushing wheel 19 and the crushing teeth 21. The screened raw materials fall to the top of the partition 11. At this point, the working process of this equipment is completed.

[0026] Embodiment 2

[0027] like Figure 1-Figure 4 As shown, the utility model proposes an energy-saving and environmentally friendly mechanical pulp pretreatment equipment. Compared with the first embodiment, this embodiment also includes: blades A7 are installed on both sides of the outer surface of the rotating shaft 6, blades B10 are installed on the top and bottom of the blade A7, and partitions 11 are installed at the top and bottom of the blade A7 inside the pretreatment box 1, and the partitions 11, blade A7 and blade B10 are arranged at an angle.

[0028] In this embodiment, when the raw material falls to the top of the partition 11, the blade A7 and the blade B10 are driven to rotate by the rotating shaft 6, and the raw material for mechanical pulp production is cut and crushed again by the set blades A7 and B10, and the crushed raw material is discharged through the discharge hopper 2.

[0029] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An energy-saving and environmentally friendly mechanical pulp pretreatment device, comprising a pretreatment box (1) and a cutting wheel (13), characterized in that: A feed hopper (4) is installed on the top of the pretreatment box (1); cutting wheels (13) are installed on both sides of the bottom of the feed hopper (4) inside the pretreatment box (1); a support plate (17) is installed on the bottom of the cutting wheel (13) inside the pretreatment box (1); support columns (18) are installed on the inside of the support plate (17); filter screens (12) are installed on the tops of the support columns (18) on both sides; and crushing wheels (19) are installed on both sides of the bottom of the filter screen (12) inside the pretreatment box (1).

2. The energy-saving and environmentally friendly mechanical pulp pretreatment equipment according to claim 1 is characterized by: The outer surface of the cutting wheel (13) is provided with a cutting edge (5), and the outer surface of the crushing wheel (19) is provided with crushing teeth (21).

3. The energy-saving and environmentally friendly mechanical pulp pretreatment equipment according to claim 1 is characterized by: The outer surface of the support column (18) is located at the bottom of the filter screen (12) and is installed with a spring A (14), and the outer surface of the support column (18) is located at the bottom of the support plate (17) and is installed with a spring B (16).

4. The energy-saving and environmentally friendly mechanical pulp pretreatment equipment according to claim 1 is characterized by: A material distribution plate (20) is installed inside the pretreatment box (1) near the filter screen (12) on both sides, and a guide plate (8) is installed on the bottom of the pretreatment box (1) near the rotating shaft (6).

5. The energy-saving and environmentally friendly mechanical pulp pretreatment equipment according to claim 1 is characterized by: A driving motor (9) is installed in the middle of the bottom of the pretreatment box (1), a rotating shaft (6) is installed on the output shaft of the driving motor (9), and a swing rod (15) is installed on the outer surface of the rotating shaft (6) near the top.

6. The energy-saving and environmentally friendly mechanical pulp pretreatment equipment according to claim 5 is characterized by: Blades A (7) are installed on both sides of the outer surface of the rotating shaft (6), and blades B (10) are installed on the top and bottom of the blade A (7).

7. The energy-saving and environmentally friendly mechanical pulp pretreatment equipment according to claim 1 is characterized by: The pretreatment box (1) is provided with partitions (11) at the top and bottom of the blade A (7), and the partitions (11), the blade A (7) and the blade B (10) are arranged at an angle.

8. The energy-saving and environmentally friendly mechanical pulp pretreatment equipment according to claim 1 is characterized by: Discharge hoppers (2) are installed on both sides of the bottom of the pretreatment box (1), and support frames (3) are installed at the four corners of the bottom of the pretreatment box (1).

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