Fiber separation device in wood pulp production

Abstract

The utility model discloses a fiber separation device in wood pulp production, which comprises a base, a multi-stage filter box and a pre-crushing box are arranged at the top of the base, a pre-crushing mechanism is arranged in the pre-crushing box, larger particles in wood pulp are pre-crushed, a discharge end of the pre-crushing box is connected with a discharge pipe, a discharge end of the discharge pipe is in threaded connection with a flow equalizing plate, and the flow equalizing plate is in threaded connection with the bottom of the base. A first filter plate and a second filter plate with different pore diameters are arranged below the flow equalizing plate; materials entering the pre-crushing box are further crushed through the crushing rollers in the pre-crushing mechanism, large particles doped in wood pulp are crushed, and the treated materials uniformly flow to the first filter plate and the second filter plate in the multi-stage filter box through the flow equalizing plate to be filtered; and meanwhile, the driving mechanism controls the first filter plate and the second filter plate to rotate and is matched with a dust collection head in the air suction mechanism to suck away impurities on the rotating filter plates, so that the problem of blockage caused by accumulation of the impurities on the filter plates is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to wood pulp processing technical field, concretely is a fiber separation device in wood pulp production. BACKGROUND

[0002] In the field of papermaking, paper product production and lignocellulose processing, the fiber separation device in wood pulp production plays a key role, its main operating principle is to separate the fiber in wood pulp from lignocellulose through mechanical force, fluid dynamics principle and chemical reaction etc. mode, makes the fiber between fully dispersed, forms the fiber pulp suitable for subsequent processing, for example, hot grinding method fiber separation device utilizes high temperature saturated steam to soften lignin in wood chip, reduces fiber binding force, then makes the fiber separate through mechanical force, fiber separation machine is through the vortex produced by impeller rotation, makes light, heavy impurities and fiber separate, and carries out secondary disintegration to slurry.

[0003] However, the existing wood pulp fiber separation equipment has many problems in actual use, various wood chips, fibers, particulate matter and other impurities are often mixed in wood pulp, in order to obtain purer wood pulp, the impurities need to be purified, currently, different aperture filter plates are often used for filtering, but the filter plate is prone to blockage after long-term use, frequent disassembly and cleaning are needed, and the operation is complicated, in addition, part of the equipment only realizes waste liquid and residue separation through the rotating drum centrifugation, and the residue is easy to adhere to the rotating drum and paste the separation screen during centrifugation, thereby affecting the subsequent separation effect.

[0004] Therefore, the fiber separation device in wood pulp production is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a fiber separation device in wood pulp production to solve the problems in the above background technology.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a fiber separation device in wood pulp production, including the base, the top of base is equipped with multistage filter box and precrushing box, the inside of precrushing box is equipped with precrushing mechanism, and the larger particles in precrushing wood pulp are precrushed, the discharge end of precrushing box is connected with the downcomer, the discharge end of downcomer is screw threadedly connected with the flow uniforming plate, the lower of flow uniforming plate is equipped with the first filter plate and the second filter plate of two different apertures, and the material is contacted with the filter plate surface uniformly through the flow uniforming plate, the first filter plate and the second filter plate are rotatably installed in the inside of multistage filter box, the lower of first filter plate and second filter plate is connected with the drive mechanism in common, the outer wall of flow uniforming plate and first filter plate is equipped with the dust collection head relatively, and is placed on the opposite side of flow uniforming plate, the side of multiple dust collection heads is connected with the air suction mechanism in common, the drive mechanism controls the rotation of first filter plate and second filter plate, so that the impurities after filtering are discharged continuously through the air suction mechanism, and the filter plate is prevented from being blocked.

[0007] Preferably, the pre-pulverizing mechanism includes a pulverizing roller rotatably installed inside the pre-pulverizing box, the lower end of the pulverizing roller penetrates through the pre-pulverizing box and is connected with the first motor, and the discharge end of the pre-pulverizing box is provided with a flow valve for controlling the flow of the material.

[0008] Preferably, the outer side wall of the first motor is provided with a support seat, one side of the support seat is fixedly installed on the multi-stage filter box, the lower end of the flow uniformizing plate penetrates through the multi-stage filter box and extends above the first filter plate, and the pre-pulverizing box is fixedly installed on the support seat.

[0009] Preferably, the driving mechanism includes a transmission shaft fixedly installed inside the first filter plate and the second filter plate, and the lower end of the transmission shaft penetrates through the multi-stage filter box and is connected with the second motor.

[0010] Preferably, the air suction mechanism includes two U-shaped pipes connected with the corresponding dust suction heads respectively, one side of each of the two U-shaped pipes is connected with a connecting pipe, the outer side wall of the connecting pipe is oppositely provided with pressure valves for respectively controlling the suction force inside different U-shaped pipes, the outer side wall of the connecting pipe is connected with a conveying pipe, and the other end of the conveying pipe is connected with a pump body.

[0011] Preferably, the output end of the pump body is connected with a collection box, the inside of the collection box is provided with a draining plate for separating the liquid mixed in the impurities, facilitating subsequent collection, and a partition plate is jointly arranged between the flow uniformizing plate and the air suction mechanism, the partition plate is fixedly installed on the multi-stage filter box, and the slurry is prevented from splashing randomly.

[0012] Preferably, the opening at the top of the multi-stage filter box is threadedly connected with a top cover, the top of the top cover is provided with an observation opening, the upper end of the observation opening is provided with a sealing cover matched therewith, the sealing cover is slidably connected with the lower side of the outer side wall of the discharging pipe, and a magnetic part matched with the bottom of the sealing cover is arranged on the top cover near the outer edge of the observation opening, so that the sealing property of the connection part is improved.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a pre-pulverizing mechanism in the pulverizing roller further breaks the material that enters the pre-pulverizing box inside, breaks the larger particle mixed in the wood pulp, and the material after processing is filtered to the first filter plate and the second filter plate inside the multi-stage filter box through the flow uniformizing plate, and the driving mechanism controls the first filter plate and the second filter plate to rotate, and cooperates with the dust suction head in the air suction mechanism to suck the impurities on the filter plate in rotation, prevents the impurities from being accumulated on the filter plate and causing the problem of blockage, thereby improving the filtering effect of the equipment, and prolonging the service life of the equipment.

[0015] 2、The utility model discloses through the setting of collection box and draining plate, the impurities that suction mechanism sucks are inhaled into the collection box inside and are collected, because the impurities still mix with water mark, further filter through draining plate, and it is convenient for subsequent collection;

[0016] Meanwhile, through the setting of the flow valve, the material flow entering the inside of the multi-stage filter box can be controlled, the actual demand is set up conveniently, and through the setting of the pressure valve, the suction of the upper and lower U-shaped pipes can be controlled, for example, the upper filter plate filters larger particles, and the particle quality is larger, so that larger suction can be set. BRIEF DESCRIPTION OF DRAWINGS

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

[0018] Figure 2 It is the main body cross section structure schematic diagram of the utility model;

[0019] Figure 3 It is Figure 2 The enlarged view of A in

[0020] In the drawing: 1, base;2, multi-stage filter box;3, support seat;4, pre-pulverizing box;5, blanking pipe;6, flow distribution plate;7, first filter plate;8, second filter plate;9, dust collection head;10, crushing roller;11, first motor;12, flow valve;13, U-shaped pipe;14, connecting pipe;15, conveying pipe;16, pressure valve;17, pump body;18, collection box;19, draining plate;20, transmission shaft;21, second motor;22, partition;23, observation port;24, sealing cover;25, magnetic part. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Embodiment 1: please refer to Figures 1-3The utility model provides a technical scheme: a kind of fiber separation device in wood pulp production, including base 1, the top of base 1 is equipped with multistage filter box 2 and pre-pulverization box 4, pre-pulverization mechanism is equipped in the inside of pre-pulverization box 4, pre-pulverization larger particles in wood pulp, pre-pulverization box 4 is connected with the discharge end of downcomer 5, the discharge end of downcomer 5 is threadedly connected with flow equalizing plate 6, the lower of flow equalizing plate 6 is equipped with two different aperture first filter plate 7 and second filter plate 8, material is evenly contacted with filter plate surface by flow equalizing plate 6, first filter plate 7 and second filter plate 8 are rotatably installed in the inside of multistage filter box 2, the lower of first filter plate 7 and second filter plate 8 is commonly connected with drive mechanism, the outer wall of flow equalizing plate 6 and first filter plate 7 is relatively equipped with dust collection head 9, and is placed in the opposite side of flow equalizing plate 6, the side of multiple dust collection head 9 is commonly connected with air suction mechanism, drive mechanism controls first filter plate 7 and second filter plate 8 rotation, so that the impurity after filtering is continuously discharged through air suction mechanism, prevent filter plate from being blocked, further smash the material that enters the inside of pre-pulverization box 4 by the smashing roller 10 in pre-pulverization mechanism, smash the larger particle of adulteration in wood pulp, the material after processing is evenly flowed to the first filter plate 7 and second filter plate 8 in the inside of multistage filter box 2 by flow equalizing plate 6 and is filtered, simultaneously drive mechanism controls first filter plate 7 and second filter plate 8 rotation, cooperate dust collection head 9 in air suction mechanism and remove the impurity on filter plate in rotation, prevent the problem that the accumulation of magazine is produced on filter plate and causes blockage.

[0023] In the embodiment, the pre-pulverization mechanism includes a smashing roller 10 rotatably installed in the inside of the pre-pulverization box 4, the lower end of the smashing roller 10 penetrates the pre-pulverization box 4 and is connected with a first motor 11, the discharge end of the pre-pulverization box 4 is provided with a flow valve 12, by the setting of the flow valve 12, the material flow entering the inside of the multistage filter box 2 can be controlled, which is convenient for setting according to actual demand, controls the flow of material flow, a support seat 3 is installed on the outer side wall of the first motor 11, one side of the support seat 3 is fixedly installed on the multistage filter box 2, the lower end of the flow equalizing plate 6 penetrates the multistage filter box 2 and extends above the first filter plate 7, the pre-pulverization box 4 is fixedly installed on the support seat 3.

[0024] In the embodiment, the drive mechanism includes a transmission shaft 20 commonly fixedly installed in the inside of the first filter plate 7 and the second filter plate 8, the lower end of the transmission shaft 20 penetrates the multistage filter box 2 and is connected with a second motor 21.

[0025] In the embodiment, the air suction mechanism comprises U-shaped tubes 13 respectively connected with corresponding dust collection heads 9, the dust collection heads 9 are within one centimeter from the surface of the filter plate, the dust collection effect is the best, one side of each of the two U-shaped tubes 13 is connected with a connecting pipe 14, the outer side wall of the connecting pipe 14 is oppositely provided with a pressure valve 16, by the arrangement of the pressure valve 16, the suction inside the upper and lower U-shaped tubes 13 is controlled, for example, the upper filter plate filters larger particles, the mass of the particles is larger, so that a larger suction can be set, the suction inside the different U-shaped tubes 13 is respectively controlled, the outer side wall of the connecting pipe 14 is connected with a conveying pipe 15, the other end of the conveying pipe 15 is connected with a pump body 17;

[0026] The output end of the pump body 17 is connected with a collection box 18, the inside of the collection box 18 is provided with a draining plate 19, which is used for separating the liquid mixed in the impurities, by the arrangement of the collection box 18 and the draining plate 19, the impurities sucked by the air suction mechanism are sucked into the collection box 18 for centralized collection, since the impurities are mixed with water stains, the draining plate 19 is further used for filtering the water stains, which is convenient for subsequent collection, the flow uniformizing plate 6 and the air suction mechanism are jointly provided with a partition plate 22, the partition plate 22 is fixedly installed on the multi-stage filter box 2, and the slurry is prevented from splashing randomly.

[0027] In the embodiment, the top cover is threadedly connected with the opening at the top of the multi-stage filter box 2, the top of the top cover is provided with an observation port 23, the upper end of the observation port 23 is provided with a sealing cover 24 matched therewith, the sealing cover 24 is slidingly connected with the lower side of the outer side wall of the discharging pipe 5, the top cover near the outer edge of the observation port 23 is provided with a magnetic part 25 matched with the bottom of the sealing cover 24, and the sealing property of the connection part is improved.

[0028] The working principle is that: in actual use, first check whether each part of the fiber separation device is intact, close the top cover, ensure that the sealing cover 24 and the observation port 23 are sealed well, the magnetic part 25 plays a role, during processing, first put the wood pulp to be treated into the pre-pulverizing box 4, start the first motor 11, drive the pulverizing roller 10 to rotate, pre-pulverize the larger particles in the wood pulp, according to the actual situation, control the material flow through the flow valve 12, make the pre-pulverized material uniformly enter the discharge pipe 5, the pre-pulverized material uniformly flows to the first filter plate 7 and the second filter plate 8 through the discharge pipe 5 and the flow distribution plate 6, start the second motor 21, drive the transmission shaft 20, make the first filter plate 7 and the second filter plate 8 rotate, in this process, the dust collection head 9 outside the flow distribution plate 6 and the first filter plate 7 starts to work under the action of the air suction mechanism, in the air suction mechanism, the pump body 17 starts to work, generates suction through the conveying pipe 15 and the connecting pipe 14, the U-shaped pipe 13 sucks the impurities collected by the dust collection head 9, according to the particle size filtered by the filter plate, adjust the suction of different U-shaped pipes 13 through the pressure valve 16, for example, if the upper filter plate filters larger particles, a larger suction can be set, the impurities are sucked into the collection box 18 through the air suction mechanism, the draining plate 19 in the collection box 18 separates the liquid mixed in the impurities, which is convenient for subsequent processing, the partition plate 22 between the flow distribution plate 6 and the air suction mechanism can prevent the pulp liquid from splashing, and ensure that the inside of the equipment is clean;

[0029] Open the top cover regularly, check the filter plate filtering condition through the observation port 23, if the filter plate is found to be blocked or damaged, clean or replace it in time, clean the impurities in the collection box 18 regularly, ensure that the draining plate 19 works normally, turn off the power supply of the equipment, clean the equipment comprehensively, and prepare for the next use.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fiber separation device in wood pulp production, comprising a base (1), characterized in that: The top of the base (1) is provided with a multi-stage filter box (2) and a pre-crushing box (4), the inside of the pre-crushing box (4) is provided with a pre-crushing mechanism, the discharge end of the pre-crushing box (4) is connected with a discharging pipe (5), the discharge end of the discharging pipe (5) is threadedly connected with a flow uniformizing plate (6), the lower side of the flow uniformizing plate (6) is provided with a first filter plate (7) and a second filter plate (8) with different hole diameters, the material uniformly contacts the surface of the filter plate through the flow uniformizing plate (6), the first filter plate (7) and the second filter plate (8) are both rotatably installed in the inside of the multi-stage filter box (2), the lower side of the first filter plate (7) and the second filter plate (8) is commonly connected with a driving mechanism, the outer side wall of the flow uniformizing plate (6) and the first filter plate (7) is oppositely provided with a dust suction head (9) and is placed on the opposite side of the flow uniformizing plate (6), one side of a plurality of dust suction heads (9) is commonly connected with an air suction mechanism, the driving mechanism controls the rotation of the first filter plate (7) and the second filter plate (8), so that the filtered impurities are continuously discharged through the air suction mechanism.

2. A fiber separation device in wood pulp production according to claim 1, characterized in that The pre-crushing mechanism comprises a crushing roller (10) rotatably installed in the inside of the pre-crushing box (4), the lower end of the crushing roller (10) penetrates through the pre-crushing box (4) and is connected with a first motor (11), the discharge end of the pre-crushing box (4) is provided with a flow valve (12) for controlling the flow of the material.

3. A fiber separation device in wood pulp production according to claim 2, characterized in that The outer side wall of the first motor (11) is installed with a support seat (3), one side of the support seat (3) is fixedly installed on the multi-stage filter box (2), the pre-crushing box (4) is fixedly installed on the support seat (3), the lower end of the flow uniformizing plate (6) penetrates through the multi-stage filter box (2) and extends above the first filter plate (7).

4. A fiber separation device in wood pulp production according to claim 1, characterized in that: The driving mechanism comprises a transmission shaft (20) commonly fixedly installed in the inside of the first filter plate (7) and the second filter plate (8), the lower end of the transmission shaft (20) penetrates through the multi-stage filter box (2) and is connected with a second motor (21).

5. A fiber separation device in wood pulp production according to claim 1, characterized in that: The air suction mechanism comprises U-shaped pipes (13) respectively penetratingly connected with corresponding dust suction heads (9), one side of two U-shaped pipes (13) is connected with a connecting pipe (14), the outer side wall of the connecting pipe (14) is oppositely provided with a pressure valve (16) for respectively controlling the suction force in the inside of different U-shaped pipes (13), the outer side wall of the connecting pipe (14) is connected with a conveying pipe (15), the other end of the conveying pipe (15) is connected with a pump body (17).

6. A fiber separation device in wood pulp production according to claim 5, characterized in that The output end of the pump body (17) is connected with a collecting box (18), the inside of the collecting box (18) is provided with a draining plate (19) for separating the liquid mixed in the impurities, so as to facilitate subsequent collection, a partition plate (22) is commonly provided between the flow uniformizing plate (6) and the air suction mechanism, the partition plate (22) is fixedly installed on the multi-stage filter box (2) to prevent the slurry from splashing.

7. A fiber separation device in wood pulp production according to any of claims 1 - 6, characterized in that: The top of the multistage filter box (2) is threadedly connected with a top cover, the top of the top cover is provided with an observation port (23), the upper end of the observation port (23) is provided with a sealing cover (24) matched with the observation port (23), the sealing cover (24) is slidingly connected with the lower side of the outer wall of the discharging pipe (5), and the top cover near the outer edge of the observation port (23) is provided with a magnetic part (25) matched with the bottom of the sealing cover (24), so that the sealing property of the connection part is improved.

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