Raw material crushing equipment for papermaking pulp preparation

Abstract

The raw material crushing equipment comprises a bottom plate and a groove body, the inner bottom wall of the groove body is rotationally connected with a first rotating shaft through a sealing bearing, a first gear is fixedly installed at the position, located above a sieve-shaped plate, of the first rotating shaft, and blades are arranged on the first gear; a connecting rod is arranged in the middle of the top end of the first gear, a plurality of first blades are horizontally arranged on the outer wall of the connecting rod, a hollow cylinder is arranged on the inner side wall of the groove body, a second rotating shaft is vertically arranged on the inner side wall of the hollow cylinder, and a second blade is horizontally arranged on the second rotating shaft. The pulping device has the advantages that the first gear drives the second gear to rotate, meanwhile, the second gear drives the hollow cylinder to rotate in the direction opposite to that of the first gear, the second blade and the first blade on the hollow cylinder shear raw materials, the pulping effect is improved, meanwhile, the raw materials clamped on the second blade are broken and released through shearing, and the pulping efficiency is improved. And the pulping efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to papermaking technical field especially, is papermaking stock preparation raw material crushing equipment. BACKGROUND

[0002] The pulper is the machine for disintegrating, flowing and dispersing in the wet nonwoven and papermaking industry, can become the machine of fibrous pulp of paper loss in the production process of pulp board, waste paper etc., the existing pulper rotates through the bottom first gear, produces vortex, makes pulp material receive strong impact and hydraulic shearing action, and receives the mechanical action of blade and the friction effect of pulp material each other, obtains the dispersed pulp material, cannot make paper quality and blade contact fully, needs longer time to carry out disintegration to paper quality, and further reduces the disintegration efficiency of pulper.

[0003] In the patent file with the publication number CN217351932U, a kind of pulper of stock preparation system is disclosed, by being arranged baffle in the inner wall of broken jar, block material in vortex, push material to middle, improve the effect of second crushing of middle blade two in broken jar, simultaneously, through the second crushing operation of blade one of baffle outer wall to material, improve the efficiency of crushing.

[0004] But the above-mentioned pulper in the process of crushing, blade one is easy to jam, reduce the effect of crushing, and baffle can cause the water flow resistance of outer ring to increase, leading to the crushing effect of blade one of baffle outer wall to material reduces, reduce the crushing efficiency. UTILITY MODEL CONTENT

[0005] In view of the above prior art, the utility model provides a kind of raw material crushing equipment for papermaking stock preparation to solve the problems in the above background art.

[0006] To achieve the above object, the technical scheme of the utility model embodiment is as follows:

[0007] The application discloses a raw material crushing device for papermaking stock preparation, which is characterized by comprising a bottom plate and a groove body, a feeding hopper and a water pipe are communicated at the upper end of the groove body, the groove body is arranged on the bottom plate through supporting legs, a first rotating shaft is rotatably connected to the inner bottom wall of the groove body through a sealing bearing, the first rotating shaft extends into a base, the first rotating shaft is connected with a driving mechanism, the driving mechanism is arranged in the base, a sieve plate is fixedly arranged on the inner bottom wall of the groove body above the sealing bearing, a suction chamber is arranged below the sieve plate and fixedly connected with the groove body, a discharge pipe is communicated with the lower end of the suction chamber, a first control valve and a pulp pump are sequentially arranged on the discharge pipe, a first gear is fixedly arranged on the first rotating shaft above the sieve plate, blades are arranged on the first gear, a connecting rod is arranged at the middle of the top end of the first gear, a plurality of first blades are horizontally arranged on the outer wall of the connecting rod, a hollow cylinder is arranged in the groove body, a second rotating shaft is vertically arranged on the inner side wall of the hollow cylinder, second blades are horizontally arranged on the second rotating shaft, a groove is arranged at the bottom of the groove body, a sliding block is arranged in the groove, a second gear is arranged on the top of the sliding block and engaged with the first gear, and an internal gear rack is arranged at the bottom of the hollow cylinder and engaged with the second gear.

[0008] Preferably, the driving mechanism comprises a first motor and a second belt pulley, the second belt pulley is arranged on the output shaft of the first motor, the first rotating shaft is provided with a first belt pulley, the first belt pulley is arranged in the base, and the outer walls of the first belt pulley and the second belt pulley are connected with a belt in a matched mode.

[0009] Preferably, the hollow cylinder is provided with a through hole, the second rotating shaft passes through the through hole, and a sealing ring is arranged in the through hole.

[0010] Preferably, the edges of the first blades and the second blades are provided with sawteeth.

[0011] Preferably, the second blades are distributed on the inner side wall of the hollow cylinder in a clockwise equidistant mode, and a plurality of second blades are arranged along the side wall axis.

[0012] Preferably, the hollow cylinder is provided with a supporting piece close to one side of the groove body, and the inner side wall of the groove body is provided with a supporting groove corresponding to the supporting piece.

[0013] Preferably, the lower end of the groove body is provided with a blowdown pipe, and the blowdown pipe is provided with a second control valve.

[0014] Preferably, a packing, a water seal ring and a gland are arranged between the sealing bearing and the first rotating shaft, the packing is slidably connected with the first rotating shaft, the water seal ring is arranged in the middle of the packing, the gland is fixed on the sealing bearing through a gland bolt, and the groove body is provided with a sealing pipe communicated with the water seal ring.

[0015] The utility model discloses a beneficial effect lies in: through the first gear drive second gear rotation, simultaneously, second gear drives hollow cylinder and does the rotation of opposite direction with the first gear, and the second blade on hollow cylinder does shearing with the first blade to raw material, improves the pulping effect, and the raw material of the second blade through shearing broken release, has improved the pulping efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of papermaking raw material breaking device in an embodiment of the application;

[0017] Figure 2 It is the overhead view sectional view in the groove body in example 1 of the application;

[0018] Figure 3 It is the front view sectional view of sealing bearing and first rotating shaft in example 2 of the application;

[0019] BRIEF DESCRIPTION OF DRAWINGS

[0020] 1, bottom plate;2, groove body;3, hollow cylinder;301, internal gear rack;302, support piece;4, feed hopper;5, water pipe;6, support leg;7, sealing bearing;8, first rotating shaft;9, base;10, first pulley;11, first motor;12, second pulley;13, sieve plate;14, pulping chamber;15, discharge pipe;16, pulp pump;17, first control valve;18, first gear;19, blade;20, connecting rod;21, first blade;22, second rotating shaft;23, second blade;24, through hole;25, sealing ring;26, blow-off pipe;27, second control valve;28, filler;29, water seal ring;30, gland;31, gland bolt;32, sealing tube;33, recess;34, sliding block;35, second gear;36, support groove. DETAILED DESCRIPTION

[0021] The utility model technical scheme is further elaborated in the following combining with the drawings and specific embodiment. Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as understood by those skilled in the art to which the utility model belongs. The terms used in the specification of the utility model in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the utility model. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subset of all possible embodiments, and can be combined with each other without conflict.

[0022] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; for example, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It must be noted that as used herein, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise. Terms such as "above" and "below" and "on" and "under" are not intended to be literal unless specifically so stated. All directional references e.g., proximal, distal, end, under, beneath, lower, upper, front, back, rear, and the like are instead taken in context with the application description. As such, these relative terms are intended to encompass different positional relationships to a device or component of a device, including but not limited to with respect to an ever-changing sequence of movement of parts thereof. Terms such as "first", "second", "third", etc. are not intended to denote a particular position or order of use, but are used to distinguish one component from another. As such, these terms are used interchangeably and are intended to denote different structural components or different uses of a component.

[0023] Embodiment 1

[0024] Please refer to Figures 1-2 The application provides a raw material crushing device for papermaking stock preparation, which comprises a bottom plate 1 and a tank body 2, a feed hopper 4 and a water pipe 5 are arranged on the upper end of the tank body 2 in communication, the tank body 2 is arranged on the bottom plate 1 through a supporting leg 6, a first rotating shaft 8 is connected with a driving mechanism, the driving mechanism is installed in a base 9, the first rotating shaft 8 is rotationally connected with the tank body 2 through a sealing bearing 7 on the inner bottom wall of the tank body 2, the bottom end of the first rotating shaft 8 extends into the base 9, a sieve-shaped plate 13 is fixedly installed on the sealing bearing 7 on the inner bottom wall of the tank body 2, a suction chamber 14 fixedly connected with the tank body 2 is installed below the sieve-shaped plate 13, a discharge pipe 15 is arranged on the lower end of the suction chamber 14 in communication, a first control valve 17 and a pulp pump 16 are sequentially arranged on the discharge pipe 15, a first gear 18 is fixedly installed above the sieve-shaped plate 13 on the first rotating shaft 8, blades 19 are arranged on the first gear 18, a connecting rod 20 is arranged on the top end of the first gear 18, a plurality of first blades 21 are horizontally arranged on the outer wall of the connecting rod 20, a hollow cylinder 3 is installed in the tank body 2, a second rotating shaft 22 is vertically arranged on the inner side wall of the hollow cylinder 3, second blades 23 are horizontally arranged on the second rotating shaft 22, a groove 33 is arranged on the bottom of the tank body 2, a sliding block 34 is installed in the groove 33, a second gear 35 meshing with the first gear 18 is arranged on the top of the sliding block 34, and an internal gear rack 301 meshing with the second gear 35 is arranged on the bottom of the hollow cylinder 3.

[0025] When the device is in use, first, water is discharged through the water pipe 5 until the water level reaches the specified liquid level, then the raw materials are put into the tank 2 through the feed hopper 4, so that the raw materials are fully wetted, which facilitates the subsequent crushing of the raw materials and improves the crushing effect. The first shaft 8 is driven to rotate in the sealed bearing 7 by the driving mechanism, at the same time, the first gear 18 rotates, the impeller on the first gear 18 rotates to generate a vortex, which functions to perform hydraulic shearing on the slurry. The first gear 18 drives the first blade 21 on the connecting rod 20 to rotate, which performs mechanical shearing on the slurry. The vortex drives the slurry to rotate, the second blade 23 on the hollow cylinder 3 is driven by the first gear 18 to make a circular motion around the first gear through the second gear 35 and the sliding block 34. The sliding block 34 rotates in the groove 33 to improve the stability of the second gear. At the same time, the second gear 35 drives the hollow cylinder 3 to rotate in the opposite direction of the first gear through the internal gear rack 301. The second blade 23 on the hollow cylinder 3 performs mechanical shearing on the raw materials with the first blade 21 to improve the pulping effect and release the raw materials stuck on the second blade 23 through shearing and crushing, thereby improving the pulping efficiency. The crushed slurry is filtered through the sieve plate 13 on the inner bottom wall of the tank 2 and flows into the slurry extraction chamber 14. The slurry in the slurry extraction chamber 14 is pumped into the discharge pipe 15 by opening the slurry pump 16. The first control valve 17 is opened to transport the crushed slurry to the next process. During the crushing process, water is supplied through the water pipe 5 to ensure that the liquid level in the tank 2 remains unchanged, thereby ensuring stable production. The supporting legs 6 support the tank 2 and ensure the stability of the tank 2 during operation of the device.

[0026] Further, the driving mechanism includes a first motor 11 and a second pulley 12. The second pulley 12 is arranged on the output shaft of the first motor 11. The first shaft 8 is provided with a first pulley 10, which is installed in the base 9. The outer walls of the first pulley 10 and the second pulley 12 are connected by a belt. The first motor 11 installed on the base 9 is turned on to drive the first shaft 8 to rotate through the belt drive of the first pulley 10 and the second pulley 12, thereby providing rotary power for the first blade 21 and the second blade 23 at the same time, reducing energy consumption and improving the practicality of the device.

[0027] Further, the hollow cylinder 3 is provided with a through hole 24, and the second shaft 22 passes through the through hole 24 to connect with the hollow cylinder 3. A sealing ring 25 is arranged in the through hole 24. The second shaft 22 passes through the through hole 24 to connect with the hollow cylinder 3, which functions to fix the second shaft and drive the second blade 23 to rotate with the hollow cylinder 3, thereby improving the pulping effect. The sealing ring 25 is placed in the through hole 24 to generate friction with the second shaft 22, thereby improving the fixing effect of the second shaft 22.

[0028] Further, the first blade 21 and the second blade 23 edges are provided with serrations. The first blade 21 and the second blade 23 edges are serrated, which is beneficial to the crushing of raw materials and improves the pulping effect.

[0029] Further, the second blade 23 is distributed equidistantly on the inner side wall of the hollow cylinder 3 in a clockwise direction and is provided with a plurality of second blades 23 along the side wall axis. The second blade 23 is equidistantly distributed and installed on the inner side wall of the hollow cylinder 3, and is provided with a plurality of second blades 23 along the side wall axis, which functions to improve the crushing effect.

[0030] Further, the hollow cylinder 3 is provided with a support piece 302 near one side of the groove body 2, and the inner side wall of the groove body 2 is provided with a support groove 36 corresponding to the support piece 302. Through the support of the support groove 36 and the support piece 302, the friction generated by the rotation of the hollow cylinder 3 is reduced, and the service life of the device is improved.

[0031] Embodiment 2

[0032] Please refer to Figures 1-3 The difference between this embodiment and embodiment 1 is that the groove body 2 is provided with a sewage pipe 26 at the lower end, and the sewage pipe 26 is provided with a second control valve 27. The pulp in the groove body 2 is discharged through the second control valve 27 and the sewage pipe 26, which avoids water from escaping and causing environmental pollution. After the pulping and discharging are completed, the second control valve 27 is opened to discharge the sewage in the pulp suction chamber 14, which facilitates subsequent cleaning work.

[0033] Further, the sealing bearing 7 and the first rotating shaft 8 are provided with a packing 28, a water seal ring 29 and a gland 30. The packing 28 is in sliding connection with the first rotating shaft 8, the water seal ring 29 is installed in the middle of the packing 28, the gland 30 is fixed on the sealing bearing 7 by bolts, and the groove body 2 is provided with a sealing pipe 32 which is in communication with the water seal ring 29. Before starting the crushing equipment, sealing water is introduced into the water seal ring 29 through the sealing pipe 32, which functions to detect the sealing property between the sealing bearing 7 and the first rotating shaft 8 and to ensure the sealing of pulp fibers during use of the equipment to prevent the outflow of pulp fibers. The packing 28 is installed between the sealing bearing 7 and the first rotating shaft 8, which functions to prevent pulp leakage. The gland 30 is used to press the packing 28 tightly by bolts, so that the plastic deformation of the packing 28 is tightly combined with the first rotating shaft 8, which improves the sealing property of the equipment.

[0034] The above merely illustrates the specific implementation manners of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. The protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A raw material crushing device for papermaking pulp preparation, characterized in that, The utility model provides a kind of slurry separation device, including bottom plate and tank, the tank upper end is connected with feed hopper and water pipe, the bottom plate is equipped with the tank by support leg, the first rotating shaft is rotatably connected to the tank inner bottom wall by sealing bearing, the first rotating shaft bottom end extends into the base, the first rotating shaft is connected with drive mechanism, the drive mechanism is installed in the base, the tank inner bottom wall is fixedly installed on the sealing bearing, and the sieve plate is installed below the sieve plate, the slurry extraction chamber is fixedly connected with the tank, the slurry extraction chamber lower end is connected with discharge pipe, the discharge pipe is equipped with first control valve and slurry pump in sequence, the first rotating shaft is fixedly installed above the sieve plate, and the first gear is equipped with blade, the first gear top end middle part is equipped with connecting rod, a plurality of first blades are horizontally equipped on the outer wall of the connecting rod, the hollow cylinder is installed in the tank, the second rotating shaft is vertically equipped on the inner side wall of the hollow cylinder, the second rotating shaft is horizontally equipped with second blade, the tank bottom is equipped with recess, the sliding block is installed in the recess, the second gear is equipped on the top of the sliding block and engaged with the first gear, and the inner rack is equipped on the bottom of the hollow cylinder and engaged with the second gear.

2. The raw material crushing apparatus for papermaking stock preparation according to claim 1, wherein The drive mechanism includes a first motor and a second pulley, the second pulley is provided on the output shaft of the first motor, the first rotating shaft is provided with a first pulley, the first pulley is installed in the base, and the outer walls of the first pulley and the second pulley are connected with a belt.

3. The raw material crushing apparatus for papermaking stock preparation according to claim 1, characterized by The hollow cylinder side wall is provided with a through hole, the second rotating shaft passes through the through hole, and a sealing ring is arranged in the through hole.

4. The raw material crushing apparatus for papermaking stock preparation according to claim 1, characterized by The first blade and the second blade edge are provided with sawteeth.

5. The raw material crushing apparatus for papermaking stock preparation according to claim 1, wherein The second blades are distributed equidistantly on the inner side wall of the hollow cylinder in clockwise direction, and a plurality of second blades are arranged along the side wall axis.

6. The raw material crushing apparatus for papermaking stock preparation according to claim 1, characterized by The hollow cylinder is provided with a support piece close to one side of the tank, and the tank inner side wall is provided with a corresponding support groove.

7. The raw material crushing apparatus for papermaking stock preparation according to claim 1, wherein The tank lower end is provided with a blowdown pipe, and the blowdown pipe is provided with a second control valve.

8. The raw material crushing apparatus for papermaking stock preparation according to claim 1, characterized by A packing, a water seal ring and a gland are arranged between the sealing bearing and the first rotating shaft, the packing is slidably connected with the first rotating shaft, the water seal ring is arranged in the middle of the packing, the gland is fixed on the sealing bearing by gland bolt, the tank is provided with a sealing pipe, and the sealing pipe communicates with the water seal ring.

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