CN214459177U

CN214459177U - Light residue separator

Info

Publication number: CN214459177U
Application number: CN202022913526.2U
Authority: CN
Inventors: 许银川; 郭克俭; 许超峰; 许要锋
Original assignee: Zhengzhou Yunda Paper Equipment Co Ltd
Current assignee: Zhengzhou Yunda Paper Equipment Co Ltd
Priority date: 2020-12-08
Filing date: 2020-12-08
Publication date: 2021-10-22
Anticipated expiration: 2030-12-08

Abstract

The utility model discloses a light sediment separating centrifuge, construct including casing, power unit and smart thick liquid screening, the casing is equipped with into thick liquid mouth, casing upper portion is equipped with the export of light sediment, the casing lower part is equipped with heavy impurity export, power unit's stirring portion is installed in the casing, smart thick liquid screening mechanism installs in the casing and is located stirring portion below, smart thick liquid screening mechanism includes smart thick liquid room and sieve, the sieve is installed on smart thick liquid room upper portion and is mutually supported with the stirring, the smart thick liquid room is equipped with the export of good thick liquid. The utility model discloses a impurity to containing in the paper pulp separates, has avoided impurity in the subsequent handling to the wearing and tearing and the jam of equipment and pipeline, has also improved the clean rate of papermaking simultaneously.

Description

Light residue separator

Technical Field

The utility model belongs to the technical field of material separation equipment, concretely relates to light sediment separating centrifuge.

Background

In the present stage, the pulping and papermaking of waste paper is taken as a papermaking process which accounts for a large proportion in the domestic papermaking industry, has no serious pollution caused by chemical pulping, does not need to rely on a large amount of wood raw materials, is a green and environment-friendly papermaking process, accords with the concept of sustainable development, and is deeply favored by papermaking manufacturers.

The waste paper from pulping and papermaking of waste paper contains more impurities, so that the paper pulp contains light and heavy impurities such as various gravels, iron blocks, foams and the like, and how to remove the impurities quickly and efficiently to ensure the cleanness of pulp and avoid the abrasion and blockage of equipment and pipelines caused by impurities in the subsequent process is a subject of research of various large papermaking equipment manufacturers.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the inside impurity that contains of thick liquid of waste paper slurrying in-process to a light sediment separating centrifuge is provided.

For solving the technical problem, the utility model discloses the technical scheme who adopts as follows:

the utility model provides a light sediment separating centrifuge, includes casing, power unit and fine pulp screening mechanism, the casing is equipped with into thick liquid mouth, casing upper portion is equipped with the export of light sediment, the casing lower part is equipped with heavy impurity outlet, power unit's stirring portion is installed in the casing and is rotated, fine pulp screening mechanism installs in the casing and is located stirring portion below, fine pulp screening mechanism includes fine pulp room and sieve, the sieve is installed on fine pulp room upper portion and is cooperated with stirring portion, the casing lower part is equipped with the good thick liquid export, good thick liquid export and fine pulp room intercommunication. The stirring part is arranged above the sieve plate, a preset gap is arranged between the stirring part and the sieve plate, and the stirring part can exert the cleaning effect on the sieve plate to the maximum extent by setting the preset gap; the stirring part of the power mechanism drives the pulp in the casing to rotate, the rotating pulp is decomposed under the action of centrifugal force, hydraulic shearing action and friction force between fibers, the defibered pulp flows to a fine pulp chamber below after being screened and filtered by a sieve plate, light impurities separated from the pulp are discharged from a light slag port, and heavy impurities are discharged from a heavy impurity port.

The slurry inlet is arranged on the side part of the machine shell, and the feeding direction of the slurry inlet is tangent to the machine shell. The slurry to be separated is added into the casing through the slurry inlet and enters along the tangential direction of the casing, so that the slurry can rotate along the inner wall of the casing, the slurry flow is longer, the separation time is prolonged, and the impurity separation rate is improved.

The upper part of the machine shell is provided with a machine cover which is a conical round cover, and the light slag outlet is arranged on the machine cover. The fuselage of casing is the cone structure, more helps the inside thick liquids of casing rotatory, produces stronger centripetal force to increased the separation time, made the thick liquids separation more thorough.

At least two turbulence strips are arranged in the cover, and the turbulence strips are arranged by taking the cover as the center. The turbulence strips can be set according to the size of the cover, and the turbulence strips are uniformly arranged around the center of the cover. After the turbulence strips are arranged, when the slurry rotating at high speed rises to the positions, the abrasion of light slag on the cover can be reduced; turbulence can occur when the slurry rotating at a high speed passes through the turbulence strips, and the turbulence acts on the light slag cluster on the gathering machine cover, so that the light slag cluster is further defibered, the risk that the light slag cluster is gathered at a light slag outlet to generate blockage is reduced, the fibers in the light slag cluster can be released by further defibering, the fiber loss rate is also reduced, and the impurity separation rate is improved.

And a heavy slag supplementing chamber is arranged at the lower part of the heavy impurity outlet. The heavy impurities separated from the slurry are discharged from the heavy impurities outlet, and the heavy slag supplementing and collecting chamber is arranged, so that the heavy impurities can be deposited in the heavy slag supplementing and collecting chamber, and the screening and separation of the slurry in the casing are not influenced.

An upper valve and a lower valve are further arranged below the heavy impurity outlet, and the heavy slag supplementing chamber is located between the upper valve and the lower valve. When the slurry is separated, the upper valve is opened, the lower valve is closed, and the screened heavy slag is deposited in the heavy slag collecting chamber due to the large specific gravity of the heavy slag; when the heavy slag replenishing chamber is full, the upper valve is closed, the lower valve is opened, heavy slag is removed, pressure intensity can be balanced and the heavy slag can be diluted when the heavy slag is discharged, and smooth discharge of the heavy slag is ensured; through setting up two upper and lower valves, need not close the machine, the thick liquids in the casing can continuously carry out the screening separation.

The lower part of the heavy slag supplementing and collecting chamber is also provided with an elutriation water pipe which is also connected with a water source, and the heavy slag can be elutriated during the heavy slag supplementing and collecting process, so that the fiber loss rate is further reduced.

The bottom of the machine shell is of a curved surface structure, the curved surface structure is not provided with corners, so that the slurry inside the machine shell can flow better, and the risk of slurry accumulation is reduced.

The power mechanism comprises a power part and a stirring part, the power part is connected with the stirring part and drives the stirring part to rotate, the stirring part comprises an impeller and an impeller seat, the impeller is positioned on the upper part of the sieve plate and is arranged on the impeller seat, and the power part is connected with the impeller seat and drives the impeller to rotate. The power part drives the stirring part to rotate, and the stirring part drives the slurry in the shell to rotate; the rotating shaft of the power part is connected with the impeller seat and drives the impeller seat to rotate, and the impeller seat drives the impeller to rotate in the shell.

The impeller is adjustable up and down on the impeller seat. The impeller is arranged above the sieve plate, a gap of 1-3 mm can be kept between the impeller and the sieve plate, and the position of the impeller on the impeller seat is adjusted by setting the distance between the impeller and the sieve plate; through adjusting the clearance between impeller and the sieve, can make the impeller exert the biggest to sieve cleaning performance, also reduce the jam probability of sieve mesh on the sieve, improve screening efficiency.

Has the advantages that: by adjusting the gap between the impeller and the impeller seat, the cleaning effect on the sieve plate at the lower part can be exerted to the maximum when the impeller rotates, and the screening efficiency is improved; the heavy impurity outlet is provided with two valves and an elutriation water pipe, the heavy slag is elutriated when being supplemented and collected, the fiber loss rate is reduced, the two valves are opened at intervals, the pressure intensity is balanced when the heavy slag is discharged, and the smooth discharge of the heavy slag is also ensured; the upper part of the shell is provided with the turbulence strips, so that the light slag can not be agglomerated to block the light slag outlet, the fibers in the light slag agglomerates are further loosened to release, and the fiber loss rate is effectively reduced. The utility model discloses a impurity to containing in the paper pulp separates, has avoided impurity in the subsequent handling to the wearing and tearing and the jam of equipment and pipeline, has also improved the clean rate of papermaking simultaneously.

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 view of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

Reference numerals: 1, feeding pulp; 2, a machine shell, 3, an upper cover; 4, a turbulence strip; 5, a light slag outlet; 6, an impeller seat; 7, an impeller; 8 sieve plates, 9 fine pulp chambers, 10 heavy impurity outlets; 11, a heavy slag collecting chamber, 12 and a good pulp outlet; 13, washing the water pipe; 14, an upper valve; and 15, a lower valve.

Detailed Description

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 any creative effort belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1, a light sediment separating centrifuge, includes casing 2, power unit and fine pulp screening mechanism, casing 2 is equipped with into thick liquid mouth 1, 2 upper portions of casing are equipped with light sediment export 5, 2 lower parts of casing are equipped with heavy impurity export 10, power unit's stirring portion is installed in casing 2 and is rotated, fine pulp screening mechanism installs in casing 2 and is located the stirring portion below, fine pulp screening mechanism includes fine pulp room 9 and sieve 8, sieve 8 is installed on fine pulp room upper portion and is cooperated with the stirring portion, fine pulp room 9 is equipped with fine pulp export 12.

The power mechanism comprises a power part and a stirring part, and the power part is connected with the stirring part and drives the stirring part to rotate in the shell 2; the power part comprises a motor, a belt pulley, a rolling bearing and a rotating shaft, the rolling bearing is arranged below the shell 2, and the rotating shaft is supported by the rolling bearing and dragged to rotate by the motor through the belt pulley; the stirring part comprises an impeller seat 6 and an impeller 7, the impeller seat 6 is arranged on the main shaft and rotates along with the main shaft, and the rotating shaft is provided with a preset position which is fixed by a bolt and is adjustable up and down; the impeller 7 is arranged on the impeller seat 6, and the impeller 7 passes through the positioning hole and is fixed by a bolt and is adjustable up and down on the impeller seat 6.

As shown in fig. 1 and 2, the fine pulp screening mechanism is located below the impeller 7 and comprises a fine pulp chamber 9 and a sieve plate 8, the fine pulp chamber 9 is located at the bottom of the casing 2, the sieve plate 8 is arranged above the fine pulp chamber 9, sieve holes are arranged on the sieve plate 8, and separated pulp enters the fine pulp chamber 9 below after being screened by the sieve plate 8 and flows out from a fine pulp outlet 12; the sieve plate 8 is positioned below the impeller 7, a gap of 1-3 mm is kept between the impeller 7 and the sieve plate 8, the upper position and the lower position of the impeller 7 on the impeller seat 6 are adjusted by setting the gap between the impeller 7 and the sieve plate 8, the cleaning effect of the impeller 7 on the sieve plate 8 can be exerted to the maximum by adjusting a proper gap, the blocking probability of sieve holes on the sieve plate 8 is reduced, and the screening efficiency is improved.

Casing 2 is rolled up by the steel sheet and is welded into the cone structure, and 2 insides of casing are the curved surface inner wall, because the inner wall of curved surface does not have the edges and corners, and the inner wall of curved surface more helps the inside thick liquids of casing 2 rotatory, has also reduced the accumulational risk of thick liquids.

The upper part of the shell 2 is provided with a cover 3, the cover 3 is conical, and a light slag outlet 5 is arranged on the cover 3; at least two turbulence strips 4 are arranged in the cover 3, and the turbulence strips 4 are arranged by taking the cover 3 as a center; the cover 3 is provided with a plurality of turbulence strips 4, the turbulence strips 4 can be set according to the size of the cover 3, and the arranged turbulence strips 4 can reduce the abrasion of light slag on the cover 3 when the slurry rotating at high speed rises to the position; turbulence can occur when the slurry rotating at a high speed passes through the turbulence strips 4, the turbulence acts on the light slag cluster on the gathering machine cover, so that the light slag cluster is further defibered, the risk that the light slag cluster is gathered at the light slag outlet 5 to generate blockage is reduced, the defibered light slag is discharged from the light slag outlet 5, the fibers in the light slag cluster can be released through further defibering, the fiber loss rate is also reduced, and the impurity separation rate is improved.

The slurry inlet 1 is arranged on the side part of the casing 2, the slurry inlet direction of the slurry inlet 1 and the casing 2 are in the tangential direction, slurry needing to be screened and separated is added into the casing 2 through the slurry inlet 1, the slurry inlet direction enters along the tangential line of the casing 2, the slurry can be enabled to be attached to the inner wall of the casing to rotate when entering, the slurry flow is enabled to be longer, the separation time is prolonged, and the impurity separation rate is improved.

Heavy impurity export 10 sets up in the lower part of casing 2, is located outside the fine pulp room 9, and heavy impurity export 10 lower part is equipped with heavy sediment and mends a set room 11, and under the effect of centrifugal force, the impurity that proportion is big in the thick liquids is rotatory along casing 2 inner wall and is got rid of heavy impurity export 10, gets into and discharges behind the heavy sediment mends set room 11.

The lower part of the heavy impurity outlet 10 can also be provided with an upper valve 14 and a lower valve 15, the heavy slag supplementing chamber 11 is positioned between the upper valve 14 and the lower valve 15, when slurry is separated, the upper valve 14 is opened, the lower valve 15 is closed, and the separated heavy slag is deposited in the heavy slag supplementing chamber 11 and is deposited in the heavy slag supplementing chamber 11; when the heavy slag replenishing chamber 11 is fully replenished, the upper valve 14 is closed, the lower valve 15 is opened, and heavy slag is removed; through setting up two upper and lower valves, the centrifugation falls to heavy sediment collection room 11 and periodic discharge, also can the balanced pressure when the periodic discharge heavy sediment and dilute heavy sediment, guarantees the smooth emission of heavy sediment.

The lower part of the heavy impurity outlet 10 is also provided with an elutriation water pipe 13, and the elutriation water pipe 13 is arranged at the lower part of the heavy slag supplementing and collecting chamber 11; the elutriation water pipe 13 is also connected with a water replenishing tank, and can elutriate the heavy slag when the heavy slag is replenished, so that the fiber loss rate is further reduced.

The utility model discloses a working process: the slurry enters the casing 2 from the slurry inlet 1 in a tangential direction, and under the action of the slurry inlet pressure and the strong force of the rotating impeller 7, the slurry rotates at a high speed along the casing 2 in a spiral shape, and generates strong turbulence and hydraulic shear. The slurry is broken under the comprehensive action of hydraulic shearing, fiber friction and impeller 7 impact; the defibered pulp passes through the sieve holes on the sieve plate 8 under the combined action of the pressure difference between the two sides of the sieve plate 8 and the pushing pressure of the impeller 7 and is discharged from a good pulp outlet 12 at the lower part of the fine pulp chamber 9. The slurry generates strong centrifugal force when rotating at high speed in the shell 2, and heavy impurities in the slurry move along the inner wall of the shell 2 under the action of the centrifugal force and are thrown into a heavy impurity outlet 10 to enter a heavy slag collecting chamber 11 for periodic discharge; the light slag has small specific gravity, is concentrated at the upper conical cover 3 and is continuously discharged from the upper light slag outlet 5.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A light slag separator is characterized in that: the fine pulp screening machine comprises a machine shell (2), a power mechanism and a fine pulp screening mechanism, wherein the machine shell (2) is provided with a pulp inlet (1), the upper part of the machine shell (2) is provided with a light slag outlet (5), and the lower part of the machine shell (2) is provided with a heavy impurity outlet (10); the fine pulp screening mechanism comprises a fine pulp chamber (9) and a sieve plate (8), the sieve plate (8) is mounted on the upper portion of the fine pulp chamber and matched with the stirring portion, a fine pulp outlet (12) is formed in the lower portion of the casing (2), and the fine pulp outlet (12) is communicated with the fine pulp chamber (9).

2. A light residue separator according to claim 1, characterized in that: the slurry inlet (1) is arranged on the side part of the machine shell (2), and the feeding direction of the slurry inlet (1) is tangent to the machine shell (2).

3. A light residue separator according to claim 1, characterized in that: the upper part of the casing (2) is provided with a cover (3), the cover is a conical round cover, and the light slag outlet (5) is arranged on the cover (3).

4. A light residue separator according to claim 3, characterized in that: the utility model discloses a set up the vortex strip, including cover (3), cover (3) inside is equipped with two at least vortex strips, the vortex strip uses cover (3) to arrange as the center.

5. A light residue separator according to claim 1, characterized in that: and a heavy slag supplementing and collecting chamber (11) is arranged at the lower part of the heavy impurity outlet (10).

6. A light residue separator according to claim 5, characterized in that: an upper valve (14) and a lower valve (15) are further arranged below the heavy impurity outlet (10), and the heavy slag collecting chamber (11) is located between the upper valve (14) and the lower valve (15).

7. A light residue separator according to claim 5, characterized in that: the lower part of the heavy slag collecting chamber (11) is also provided with an elutriation water pipe (13).

8. A light residue separator according to claim 1, characterized in that: the bottom of the shell (2) is of a curved surface structure.

9. A light residue separator according to claim 1, characterized in that: the power mechanism comprises a power part and a stirring part, the power part is connected with the stirring part and drives the stirring part to rotate, the stirring part comprises an impeller (7) and an impeller seat (6), the impeller (7) is positioned above the sieve plate (8) and is arranged on the impeller seat (6), and the power part is connected with the impeller seat (6) and drives the impeller (7) to rotate.

10. A light residue separator according to claim 9, characterized in that: the impeller (7) is arranged on the impeller seat (6) and can be adjusted up and down.