High-precision fiber screening device for producing ultra-low quantitative corrugated base paper

Abstract

The utility model discloses a high-precision fiber screening device for producing ultra-low quantitative corrugated base paper, which comprises a tank body, a centrifugal outer cylinder is rotatably connected in the tank body, a screening inner cylinder is arranged at the center of the centrifugal outer cylinder, a discharge pipe is arranged on one side of the screening inner cylinder, and a discharge pipe is arranged on the other side of the screening inner cylinder. An ultrasonic sensor is arranged at a feeding port of the discharging pipe, an ultrasonic generator is arranged at the bottom of the screening inner cylinder, a plurality of spiral blades are fixedly connected to the inner side of the centrifugal outer cylinder, and a feeding pipe is arranged on one side of the top of the tank body. According to the utility model, the lifting mechanism is arranged and is matched with the rotatable cleaning seat and the corresponding inclined spray heads, so that after the cleaning seat enters the screening inner cylinder, meshes of the high-precision screen can be subjected to high-pressure washing through the plurality of high-pressure washing spray heads under the driving of the high-pressure water pump, and meanwhile, water flow reverse thrust of the inclined spray heads is utilized to wash the meshes of the high-precision screen; and the cleaning seat can automatically rotate during high-pressure flushing, so that dead-corner-free automatic flushing work is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to papermaking equipment technical field, especially in low quantity corrugated paper production with high accuracy fiber screening device of ultra -low. BACKGROUND

[0002] Corrugated paper is one of important component materials of producing corrugated paperboard, is the raw paper used to constitute corrugated paperboard wave -shaped core, when being made into reel paper or flat plate paper form by paper mill and being handed over to corrugated paperboard factory to carry out processing, mainly undertakes the pressure -bearing, shock -proof effect in the middle of corrugated paperboard. In the production of corruggated paper, if the ring pressure intensity index under the condition of reaching the requirement, can produce the corrugated paperboard of greater area under the same weight, then its fixed quantity is smaller. The definition of ultra -low quantity corrugated paper is the corrugated paper of less than 100g / m 2 Its characteristics include high strength, good physical performance and environmental protection, and the production process of ultra -low quantity corrugated paper needs to use high -quality raw materials and carry out proper equipment updating and technical improvement. In the production process, the selection of raw paper is crucial, and the quality of raw materials must be ensured.

[0003] The existing ultra -low quantity corrugated paper in production, since the raw material is generally the waste paper pulp treated by recycling, its inside contains a large amount of mortar filler and other non -fibrous impurities, needs to do high accuracy fiber screening to the pulp fiber, and the existing mechanical screening device is easy to damage the fiber structure in the process of rotating and vibrating due to high -speed mechanical extrusion, leads to a large amount of broken fiber when screening, affects the screening quality, and the effect of reducing mesh blockage by vibration is poor, when the mesh is blocked, manual cleaning or replacing the screen is needed, and further improvement space is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of high accuracy fiber screening devices for ultra -low quantity corrugated paper production, applied to low consistency pulp fiber screening, solve the above problems.

[0005] To achieve the above object, provide a kind of high accuracy fiber screening devices for ultra -low quantity corrugated paper production, including jar body, the inside rotation of the jar body is connected with centrifugal outer cylinder, the center of the centrifugal outer cylinder is provided with screening inner cylinder, the one side of the screening inner cylinder is provided with discharge pipe, the feed inlet of the discharge pipe is provided with ultrasonic sensor, the bottom of the screening inner cylinder is provided with ultrasonic generator, the inside of the centrifugal outer cylinder is fixedly connected with multiple spiral blades, the top of the jar body one side is provided with feed pipe, the jar body is provided with overflow launder below the top of centrifugal outer cylinder;

[0006] The top center of the tank body is provided with a lifting mechanism, the bottom output end of the lifting mechanism is fixedly connected with a lifting pipe, the bottom output end of the lifting pipe is rotatably connected with a cleaning seat, the cleaning seat is a circular seat body, a plurality of high-pressure flushing nozzles with a jet direction perpendicular to a tangent direction are equidistantly arranged in the middle of the cleaning seat, and a plurality of oblique nozzles with a jet direction at an angle of thirty degrees to the tangent direction are symmetrically arranged below the cleaning seat.

[0007] According to the high-precision fiber screening device for ultra-low basis weight corrugated paper production, the lifting mechanism comprises a fixed sliding seat, a lifting cylinder, a lifting frame and a connecting sleeve, the bottom of the fixed sliding seat is fixedly connected with the top of the tank body, the top of the fixed sliding seat is fixedly connected with the lifting cylinder, the output end of the lifting cylinder is fixedly connected with the lifting frame, the lifting frame is slidingly connected with the fixed sliding seat, and the bottom of the lifting frame is fixedly connected with the connecting sleeve.

[0008] According to the high-precision fiber screening device for ultra-low basis weight corrugated paper production, the top of the screening inner cylinder is fixedly connected with the inner top of the tank body.

[0009] According to the high-precision fiber screening device for ultra-low basis weight corrugated paper production, the outer side of the screening inner cylinder is fixedly connected with a high-precision screen.

[0010] According to the high-precision fiber screening device for ultra-low basis weight corrugated paper production, the end, away from the cleaning seat, of the lifting pipe is connected with a high-pressure water pump through a pipeline and a control valve.

[0011] According to the high-precision fiber screening device for ultra-low basis weight corrugated paper production, the outer side of the tank body is provided with a discharge channel corresponding to the overflow groove.

[0012] According to the high-precision fiber screening device for ultra-low basis weight corrugated paper production, the bottom center of the tank body is provided with a driving motor in driving connection with the centrifugal outer cylinder.

[0013] The above scheme has at least one of the following beneficial effects:

[0014] 1、The lifting mechanism is arranged, the rotatable cleaning seat and the corresponding oblique nozzles are matched, after the cleaning seat enters the screening inner cylinder, high-pressure flushing is performed on the mesh of the high-precision screen through the plurality of high-pressure flushing nozzles under the driving of the high-pressure water pump, meanwhile, the water flow back thrust of the oblique nozzles is utilized, so that the cleaning seat can automatically rotate when high-pressure flushing is performed, automatic flushing work without dead angle is realized, and the practicability of the device is strengthened.

[0015] 2, The utility model discloses a centrifugal outer tube and screen inner tube are provided, cooperate helical blade, can utilize the self rotation of centrifugal outer tube, drive the high -speed centrifugal motion of internal paper pulp, make internal impurity fast stratification, and the heavier impurity can be thrown to the overflow launder through the helical blade and the outer expansion cylinder wall, and the lighter fiber can filter to the screen inner tube and carry out the discharge, through setting up a plurality of equipment on the production line, can carry out the accurate classification screening, strengthen the practicality of device.

[0016] The additional aspects and advantages of the utility model will be partly given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model is further illustrated below in connection with the drawings and examples;

[0018] Fig. 1 It is internal structure schematic diagram for the utility model discloses a kind of high-precision fiber screening device for ultra-low basis weight corrugated paper production;

[0019] Fig. 2 It is three-dimensional structure schematic diagram for the utility model discloses a kind of high-precision fiber screening device for ultra-low basis weight corrugated paper production;

[0020] Fig. 3 It is three-dimensional structure schematic diagram for the utility model cleaning seat and lifting mechanism.

[0021] LEGEND:

[0022] 1, tank body;2, centrifugal outer tube;3, screen inner tube;4, helical blade;5, high-precision screen;6, lifting mechanism;7, lifting pipe;8, cleaning seat;9, ultrasonic sensor;10, overflow launder;11, discharge pipe;12, feed pipe;13, high-pressure flushing nozzle;14, inclined nozzle;15, ultrasonic generator;61, fixed sliding seat;62, lifting cylinder;63, lifting frame;64, connecting sleeve. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiment of the utility model in detail, and the preferred embodiment of the utility model is shown in the drawings, and the effect of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and overall technical scheme of the utility model, the drawings are in a very simplified form and use non-precise scale, only to facilitate, clear auxiliary description of the purpose of the embodiment of the utility model, and cannot be understood as the limitation of the protection scope of the utility model.

[0024] REFERENCE Figs. 1-3The utility model discloses an ultra -low ration corrugated paper production with high accuracy fibre screening device, including jar body 1, the inside rotation of jar body 1 is connected with centrifugal outer tube 2, the bottom center of jar body 1 is provided with the drive motor of centrifugal outer tube 2 drive connection, the center of centrifugal outer tube 2 is provided with screening inner tube 3, the top of screening inner tube 3 is fixedly connected with jar body 1 inboard top, the outside fixed connection of screening inner tube 3 has high accuracy screen 5, one side of screening inner tube 3 is provided with the discharge pipe 11, the inlet of discharge pipe 11 is provided with ultrasonic sensor 9, the bottom of screening inner tube 3 is provided with ultrasonic generator 16, can pass through ultrasonic detection paper pulp concentration, the inboard fixed connection of centrifugal outer tube 2 has a plurality of helical blades 4, the top one side of jar body 1 is provided with the feed pipe 12, jar body 1 is provided with overflow launder 10 below the top of centrifugal outer tube 2, the outside of jar body 1 is provided with the discharge channel corresponding with overflow launder 10, the inside setting of jar body 1 centrifugal outer tube 2 and screening inner tube 3, cooperate helical blade 4, can utilize the self rotation of centrifugal outer tube 2, drive the paper pulp inside to carry out high speed centrifugal motion, make the internal impurity fast stratification, the heavier impurity can be thrown to overflow launder 10 through helical blade 4 and the outer expansion cylinder wall, the lighter fiber can filter to screening inner tube 3 and discharge, through setting multiple equipment on the production line, can carry out accurate classification screening;

[0025] The top center of jar body 1 is provided with lifting mechanism 6, lifting mechanism 6 includes fixed slide 61, lifting cylinder 62, lifting frame 63 and connecting sleeve 64, the bottom of fixed slide 61 is fixedly connected with the top of jar body 1, the top of fixed slide 61 is fixedly connected with lifting cylinder 62, the output end of lifting cylinder 62 is fixedly connected with lifting frame 63, lifting frame 63 is slidingly connected with fixed slide 61, the bottom of lifting frame 63 is fixedly connected with connecting sleeve 64, for driving cleaning seat 8 to lift;

[0026] The bottom output end of lifting mechanism 6 is fixedly connected with lifting pipe 7, one end of lifting pipe 7 close to cleaning seat 8 is fixedly connected with lifting frame 63 through connecting sleeve 64, one end of lifting pipe 7 away from cleaning seat 8 is communicated with high-pressure water pump through pipeline and control valve, the bottom output end of lifting pipe 7 is rotatably connected with cleaning seat 8, cleaning seat 8 is a circular seat body, a plurality of high-pressure flushing nozzles 13 with the jet direction perpendicular to the tangent direction are equidistantly arranged in the middle of cleaning seat 8, a plurality of oblique nozzles 14 with the jet direction at an angle of thirty degrees to the tangent direction are symmetrically arranged below cleaning seat 8, cooperating with lifting mechanism 6, after cleaning seat 8 descends into screening inner tube 3, under the drive of high-pressure water pump, the mesh of high-precision screen 5 is high-pressure flushed through a plurality of high-pressure flushing nozzles 13, at the same time, the water flow back thrust of oblique nozzles 14 makes cleaning seat 8 automatically rotate during high-pressure flushing, under the overall lifting motion, automatic flushing work without dead angle is realized.

[0027] Working principle: the utility model discloses when working, the centrifugal outer tube 2 and the screening inner tube 3 of the inside setting of jar body 1, cooperate helical blade 4, can utilize the self rotation of centrifugal outer tube 2, drive the high-speed centrifugal motion of inside paper pulp, make the internal impurity fast stratification, and the heavier impurity can be thrown to overflow launder 10 through helical blade 4 and the outer expansion cylinder wall, and the lighter fiber can filter to the screening inner tube 3 and carry out the discharge, through setting multiple equipment on the production line, can carry out accurate classification screening, and the cleaning seat 8 of being set in the middle part of screening inner tube 3, cooperate lifting mechanism 6, can after cleaning seat 8 enters screening inner tube 3, under the drive of high-pressure water pump through multiple high-pressure flushing nozzles 13 to the mesh of high-precision screen 5 high-pressure flushing, utilize the water flow counterthrust of oblique nozzle 14 simultaneously, make cleaning seat 8 when high-pressure flushing, can automatically rotate, cooperate lifting function, realize the automatic flushing work of no dead angle.

[0028] The utility model has been described in detail in the above in combination with the drawings, but the utility model is not limited to the above embodiment, and within the knowledge scope of ordinary skill in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A high-precision fiber screening device for ultra-low basis weight corrugated paper production, comprising a tank body (1), characterized in that: The inside of the tank body (1) is rotatably connected with a centrifugal outer cylinder (2), the center of the centrifugal outer cylinder (2) is provided with a screening inner cylinder (3), one side of the screening inner cylinder (3) is provided with a discharge pipe (11), the feeding port of the discharge pipe (11) is provided with an ultrasonic sensor (9), the bottom of the screening inner cylinder (3) is provided with an ultrasonic generator (16), the inner side of the centrifugal outer cylinder (2) is fixedly connected with a plurality of spiral blades (4), the top side of the tank body (1) is provided with a feeding pipe (12), the tank body (1) is provided with an overflow chute (10) below the top of the centrifugal outer cylinder (2). The top center of the tank body (1) is provided with a lifting mechanism (6), the bottom output end of the lifting mechanism (6) is fixedly connected with a lifting pipe (7), the bottom output end of the lifting pipe (7) is rotatably connected with a cleaning seat (8), the cleaning seat (8) is a circular seat body, a plurality of high-pressure flushing nozzles (13) with the jet direction perpendicular to the tangent direction are equidistantly arranged in the middle of the cleaning seat (8), a plurality of oblique nozzles (14) with the jet direction at an angle of thirty degrees to the tangent direction are symmetrically arranged below the cleaning seat (8).

2. The high-precision fiber screening device for producing ultra-low basis weight corrugated paper according to claim 1, characterized in that, The lifting mechanism (6) comprises a fixed sliding seat (61), a lifting cylinder (62), a lifting frame (63) and a connecting sleeve (64), the bottom of the fixed sliding seat (61) is fixedly connected with the top of the tank body (1), the top of the fixed sliding seat (61) is fixedly connected with the lifting cylinder (62), the output end of the lifting cylinder (62) is fixedly connected with the lifting frame (63), the lifting frame (63) is slidingly connected with the fixed sliding seat (61), the bottom of the lifting frame (63) is fixedly connected with the connecting sleeve (64), one end of the lifting pipe (7) close to the cleaning seat (8) is fixedly connected with the lifting frame (63) through the connecting sleeve (64).

3. The high-precision fiber screening device for producing ultra-low basis weight corrugated paper according to claim 1, characterized in that, The top of the screening inner cylinder (3) is fixedly connected with the inside top of the tank body (1).

4. The high-precision fiber screening device for producing ultra-low basis weight corrugated paper according to claim 1, characterized in that, The outside of the screening inner cylinder (3) is fixedly connected with a high-precision screen (5).

5. The high-precision fiber screening device for producing ultra-low basis weight corrugated paper according to claim 1, characterized in that, One end of the lifting pipe (7) away from the cleaning seat (8) is communicated with a high-pressure water pump through a pipeline and a control valve.

6. The high-precision fiber screening device for producing ultra-low basis weight corrugated paper according to claim 1, characterized in that, The outside of the tank body (1) is provided with a discharge channel corresponding to the overflow chute (10).

7. The high-precision fiber screening device for producing ultra-low basis weight corrugated paper according to claim 1, characterized in that, The bottom center of the tank body (1) is provided with a driving motor drivingly connected with the centrifugal outer cylinder (2).

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