CN213967114U

CN213967114U - Wet pulp crushing device for fiber production

Info

Publication number: CN213967114U
Application number: CN202022978615.5U
Authority: CN
Inventors: 刘斌; 李存代
Original assignee: Asia Symbol Shandong Pulp And Paper Co ltd
Current assignee: Asia Symbol Shandong Pulp And Paper Co ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-08-17
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a wet pulp dregs of rice reducing mechanism is used in fibre production, including first conveyer belt, first conveyer belt is used for carrying pulp the entry of coarse crusher, coarse crusher's export and fine crusher's entry intercommunication, fine crusher's export and screening plant intercommunication, screening plant's output setting is in the top of second drive belt. The wet pulp dregs crushing device for fiber production enables crushed pulp grains entering the subsequent process to be more uniform.

Description

Wet pulp crushing device for fiber production

Technical Field

The utility model relates to a pulp crushing apparatus technical field of production cellulose base fibre, in particular to wet thick liquid dregs of rice reducing mechanism for fiber production.

Background

In the wet processing procedure of cellulose fiber, pulp is added into aqueous solution to form concentrated pulp solution with certain concentration, and then water is extruded by a squeezing device and then is crushed by a crushing device. In the prior art, as shown in fig. 1, the pulp after extrusion is conveyed to a coarse crushing device 02 through a first transmission belt 01, the pulp after coarse crushing is carried out by the coarse crushing device 02 and then enters a fine crushing device 03 for fine crushing, the whole crushing process is completed after fine crushing, the pulp after crushing is conveyed away for standby by a second transmission belt 04, and the arrow direction in fig. 1 is the flowing direction in the pulp crushing process.

Because the pulp contains certain moisture and the distance between the rollers of the fine crushing device 03 is short, the pulp after being extruded and crushed between the rollers of the fine crushing device 03 can cause the crushed pulp to be agglomerated, which is not beneficial to the use of the subsequent process.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a wet pulp dregs of rice comminution device for fibre production makes the pulp grain after the smashing that gets into the subsequent handling more even.

In order to achieve the above object, the utility model provides a following technical scheme:

the wet pulp crushing device for fiber production comprises a first conveyor belt, wherein the first conveyor belt is used for conveying pulp to an inlet of a coarse crusher, an outlet of the coarse crusher is communicated with an inlet of a fine crusher, an outlet of the fine crusher is communicated with a screening device, and an output end of the screening device is arranged above a second conveyor belt.

Optionally, the screening device is a vibrating screen, and one or two vibrating screens are arranged.

Optionally, the shaker includes a screen frame and a deflector, the screen frame suspended above the deflector.

Optionally, the screen frame includes a bottom plate provided with a plurality of screen holes, and further includes a side plate arranged around the bottom plate, and the side plate is provided with a compressed air nozzle.

Optionally, the compressed air nozzle is arranged towards the direction of the base plate.

Optionally, the guide plate is arranged in an inclined manner, and an included angle between the guide plate and the horizontal plane is 2-15 degrees.

Optionally, the deflector is a flat plate.

Optionally, when setting up two the reciprocating sieve, the exit linkage of fine rubbing crusher has Y type connecting pipe, Y type connecting pipe is including the person in charge and two bleeder that the intercommunication set up, the entry end of being responsible for with the exit linkage of fine rubbing crusher, every the export of bleeder respectively connects one the reciprocating sieve.

Optionally, a material stirring sheet is arranged at a communication position between the two branch pipes and the main pipe, and the material stirring sheet swings left and right to enable the two branch pipes to be alternately communicated with the main pipe.

According to the technical scheme, the utility model provides a wet thick liquid dregs of rice reducing mechanism is used in fibre production sets up between the export of fine crusher and second drive belt screening plant, screening plant is used for sieving the kibbling pulp of exit end exhaust to fine crusher to make the granule of the kibbling pulp of falling on the second drive belt more even, avoided the pulp of caking to carry follow-up station, guaranteed the homogeneity of kibbling granule.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a wet pulp crushing device for fiber production in the prior art;

fig. 2 is a schematic structural diagram of a wet pulp crushing device for fiber production according to an embodiment of the present invention.

Detailed Description

The utility model discloses a wet pulp dregs of rice comminution device for fiber production for the pulp grain after the smashing that gets into the subsequent handling is more even.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 2, the utility model provides a wet pulp dregs reducing mechanism for fiber production, including first conveyer belt 1, first conveyer belt 1 is used for carrying pulp to the entry of coarse crusher 2, and the export of coarse crusher 2 communicates with the entry of fine crusher 3, and the export of fine crusher 3 communicates with the screening plant, the output setting of screening plant is directly over second conveyer belt 8.

Wherein, the coarse crusher 2 is used for carrying out coarse crushing on the pulp, the fine crusher 3 is used for carrying out fine crushing on the pulp, and the roller spacing of the fine crusher 3 is smaller than that of the coarse crusher 2. The coarse crusher 2 and the fine crusher 3 are crushing devices commonly used in the prior art, and the detailed description of the structures of the coarse crusher and the fine crusher is omitted here. The communication may be direct communication or communication via an intermediate pipeline, which is not limited herein. The second transmission belt 8 is used for conveying the crushed pulp to a subsequent station for use in the subsequent station.

The utility model discloses a wet pulp dregs of rice reducing mechanism is used in fibre production sets up through export at fine rubbing crusher 3 and second drive belt 8 between screening plant, screening plant is used for screening the pulp after the crushing of the exit end exhaust of fine rubbing crusher 3 to make the granule of the pulp after crushing that falls on second drive belt 8 more even, avoided the pulp of caking to carry follow-up station, guaranteed the homogeneity of crushing granule.

In a specific embodiment, the screening device is a vibrating screen, and one or two vibrating screens are arranged. The vibrating screen comprises a screen frame 6 and a guide plate 7, wherein the screen frame 6 is suspended right above the guide plate 7, and a compressed air nozzle 61 is arranged on the screen frame 6. The screen frame 6 and the guide plate 7 can be arranged on a support, and can also be arranged on corresponding supports respectively, and the support is not limited, so long as the bearing surface of the guide plate 7 is arranged right opposite to the screen surface of the screen frame 6. The screen frame 6 is used for screening the pulp crushed by the fine crusher 3, and the guide plate 7 is used for guiding the pulp screened by the screen frame 6, so that the screened pulp slides on the second transmission belt 8. The compressed air nozzle 61 is used for spraying compressed air, the compressed air nozzle 61 is arranged above the screen surface of the screen frame 6 in an inclined mode, and the compressed air nozzle 61 sprays high-pressure air to the screen surface of the screen frame 6 so as to clean residual adhered slurry on the screen surface of the screen frame 6 and recover the filtering function of the screen frame 6.

Specifically, the screen frame 6 comprises a bottom plate and side plates, a plurality of uniformly distributed screen holes are formed in the bottom plate, the diameter of each screen hole is 3mm-10mm, and users with the specific screen holes select the screen holes according to requirements of subsequent processes. The side plates are arranged around the bottom plate in a surrounding mode and used for preventing pulp on the screen frame 6 from falling off. Compressed air nozzles 61 are provided on the side plates. The bottom plate is the screen surface. The compressed air nozzles 61 are arranged in the direction of the base plate.

In order to facilitate the screening of the pulp on the screen frame 6 and avoid the pulp of the block from entering the subsequent process to influence the uniformity of the pulp, the screen frame 6 is connected to a support through a first spring, and a first vibrating motor is arranged on the lower bottom surface or the side surface of the screen frame 6 and used for providing the screening vibrating force for the screen frame 6. In particular, the screen frame 6 is a rectangular frame, and each corner position of the frame is connected to the support through one first spring. In order to improve the vibration stability, each first spring is sleeved on a first guide structure, and the first guide structure comprises a first guide rod and a first guide sleeve which are connected in a sliding mode. The fixed end of the first guide sleeve is fixedly connected to the support, and the fixed end of the first guide rod is fixedly connected to the screen frame 6. Or the fixed end of the first guide sleeve is fixedly connected to the screen frame 6, and the fixed end of the first guide rod is fixedly connected to the support. The non-fixed ends of the first guide rod and the first guide sleeve are connected together in a sliding mode. When the vibration force in the horizontal direction is needed, the axis of the first spring is horizontally arranged, and when the vibration force in the vertical direction is needed, the axis of the first spring is vertically arranged. The connection mode of the screen frame 6 and the first vibration motor in this embodiment is a connection mode commonly used in the field, that is, through bolt connection, and the arrangement, connection mode and structure of the first spring and the first guide structure are also commonly used in the field, and are not described herein again.

In order to facilitate the collection of the pulp screened onto the deflector 7, the deflector 7 is disposed obliquely so that the pulp slides down onto the second belt 8. Specifically, the included angle between the guide plate 7 and the horizontal plane is 2-15 degrees, and the angle range is set, so that the pulp can automatically slide down, and the pulp can be prevented from sliding down too fast. The pulp slip speed is too high, and the pulp falling on the second belt 8 is easily splashed out. Specifically, the guide plate 7 is a flat plate, i.e., the surface for receiving pulp is a plane.

In order to avoid pulp adhesion to the guide plate 7 and influence pulp collection, the guide plate 7 is connected to the support through a second spring, a second vibration motor is arranged on the lower bottom surface or the side surface of the guide plate 7, and the second vibration motor is used for providing vibration force for the guide plate 7, so that the pulp adhesion is effectively avoided. The connection mode of the baffle 7 and the second vibration motor in this embodiment is a connection mode commonly used in the art, that is, a bolt connection mode. Specifically, the guide plate 7 is a rectangular plate arranged corresponding to the screen frame 6, and each corner position of the rectangular plate is connected to the support through one second spring. Similarly, in order to improve the vibration stability, each second spring is sleeved on a second guide structure, and the second guide structure comprises a second guide rod and a second guide sleeve which are in sliding connection. The fixed end of the second guide sleeve is fixedly connected to the support, and the fixed end of the second guide rod is fixedly connected to the screen frame 6. Or the fixed end of the second guide sleeve is fixedly connected to the screen frame 6, and the fixed end of the second guide rod is fixedly connected to the support. And the non-fixed ends of the second guide rod and the second guide sleeve are connected together in a sliding manner. The axis of the second spring is horizontally arranged. The arrangement, connection mode and structure of the second spring and the second guiding structure are also common in the art, and are not described herein again.

Further, the reciprocating sieve is provided with two, like this, one of them when the filter effect of reciprocating sieve reduces, can stop this reciprocating sieve temporarily, clear up, use another the reciprocating sieve sieves work, can not influence normal use of equipment, and the production progress can not receive the influence.

Specifically, for two convenience in the connection of reciprocating sieve, the exit linkage of fine rubbing crusher 3 has Y type connecting pipe 4, and Y type connecting pipe 4 is including the main pipe and two bleeder pipes that the intercommunication set up, the entry end of being responsible for and the exit linkage of fine rubbing crusher 3, every the export of bleeder pipe respectively connects one the reciprocating sieve. The outlet of the branch pipe is arranged above the screen frame 6, as shown in figure 2. In order to facilitate the switching and use of different vibrating screens, the positions of the two branch pipes communicated with the main pipe are provided with material stirring sheets 5. The stirring piece 5 is rotatably connected to the Y-shaped connecting pipe 4 through a rotating shaft. The rotating shaft is rotated to drive the stirring sheet 5 to rotate, so that different branch pipes are communicated.

Further, the compressed air nozzle 61 is connected to an air pipe (not shown) on which an air pressure pump is provided. The air conveying pipe is provided with a flow meter and a temperature sensor so as to monitor the amount of air flowing in and the temperature of the air. In a specific embodiment, the air pipe is provided with a heater or a heat exchanger for heating the compressed air, so that the temperature of the compressed air is controlled within a set temperature range.

Specifically, the compressed air volume is 1-10m³Min, and the temperature is 30-50 ℃. The vibration speed of the screen frame 6 is 0.1m/s-1m/s, the vibration speed of the guide plate 7 is 0.1m to 1m/s, and the vibration direction of the guide plate 7 is vertical to the flow direction of the pulp and vibrates horizontally.

The utility model discloses a fibre production is with wet thick liquid dregs of rice crushing device's working process: after the right discharge hole is sealed by the stirring sheet 5, slurry enters the left screen frame 6 from the left discharge hole, the filtered slurry falls on the left guide plate 7, and the inclined guide plate 7 vibrates to enable the slurry to slide on the second transmission belt 8 below; when the filter effect of left side reel 6 reduced, the position of tablet 5 was dialled in the adjustment, made its shutoff left side discharge gate, made thick liquids discharge from the right side discharge gate, and compressed air nozzle 61 on the reel 6 of left side sprays compressed air to the bottom plate of reel 6, remains the thick liquids of gluing on the bottom plate of clearance reel 6, resumes the filter effect of reel 6. Meanwhile, the right screen frame 6 keeps working, continuous supply of slurry is ensured, and production efficiency is improved.

In the description of the present solution, it is to be understood that the terms "upper", "lower", "vertical", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present solution.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The wet pulp crushing device for fiber production comprises a first conveyor belt, wherein the first conveyor belt is used for conveying pulp to an inlet of a coarse crusher, an outlet of the coarse crusher is communicated with an inlet of a fine crusher, the wet pulp crushing device is characterized in that the outlet of the fine crusher is communicated with a screening device, and an output end of the screening device is arranged above a second conveyor belt.

2. The wet pulp crushing device for fiber production according to claim 1, wherein the sieving device is a vibrating sieve, and one or two vibrating sieves are arranged.

3. The wet pulp crushing device for fiber production according to claim 2, characterized in that the vibrating screen comprises a screen frame and a deflector, the screen frame being suspended above the deflector.

4. The wet pulp meal crushing device for fiber production according to claim 3, characterized in that the screen frame comprises a bottom plate provided with a plurality of screen holes, and further comprises a side plate arranged around the bottom plate, and the side plate is provided with a compressed air nozzle.

5. The apparatus for crushing wet pulp for fiber production according to claim 4, wherein the compressed air nozzles are arranged in a direction toward the bottom plate.

6. The device for crushing wet pulp dregs for producing fibers of claim 3, wherein the deflector is arranged obliquely, and the included angle between the deflector and the horizontal plane is 2-15 degrees.

7. The apparatus for crushing wet pulp for fiber production according to claim 6, wherein the deflector is a flat plate.

8. The device for crushing wet pulp dregs for producing fibers according to claim 2, characterized in that when two vibrating sieves are provided, the outlet of the fine crusher is connected with a Y-shaped connecting pipe, the Y-shaped connecting pipe comprises a main pipe and two branch pipes which are arranged in a communicating manner, the inlet end of the main pipe is connected with the outlet of the fine crusher, and the outlet of each branch pipe is connected with one vibrating sieve.

9. The wet pulp crushing device for fiber production according to claim 8, wherein a material stirring sheet is arranged at the communication position of the two branch pipes and the main pipe, and the material stirring sheet swings left and right to make the two branch pipes alternately communicate with the main pipe.