CN214496978U

CN214496978U - Slurry pressure screen

Info

Publication number: CN214496978U
Application number: CN202022875028.3U
Authority: CN
Inventors: 张红伍
Original assignee: Individual
Current assignee: Xiamen Hansenda Electronic Technology Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-10-26
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses a slurry pressure screen, which comprises a shell, wherein the upper side of the shell is provided with a top plate, the upper side of the top plate is provided with a volute, the upper right side of the volute is communicated with a slurry inlet, the inner cavity of the volute is arranged downwards in a rotating way, the opening is gradually reduced to accelerate the flow velocity, the left lower side of the volute is communicated with a tail slurry outlet, a heavy impurity catcher is arranged at the tail slurry outlet, the center of the volute is rotationally connected with a stirring blade which is connected with a stirring shaft, the inner layer of the volute is provided with an arc grid plate, the utility model utilizes the centrifugal force and the gravity to separate the slurry through the structure of the volute, the stirring blade stirs, improves the separation efficiency of tail slurry such as massive impurities, thick fibers and the like, simultaneously, through the screen cylinder of up-and-down motion, prevent the hole jam, guarantee the continuous normal operating of screen cylinder, its maintenance cost of greatly reduced improves screening production efficiency, and the practicality is strong.

Description

Slurry pressure screen

Technical Field

The utility model relates to a papermaking thick liquids screening installation technical field specifically is a thick liquids pressurized screen.

Background

The modern paper making process can be divided into the main steps of pulping, modulation, papermaking, screening and processing of paper materials and the like, wherein the pulping is the first step of paper making, and the general methods for converting wood into paper pulp comprise three methods, namely a mechanical pulping method, a chemical pulping method, a semi-chemical pulping method and the like; the modulation of paper stock is another key point of papermaking, and the strength, the color tone and the printing quality of the finished paper and the storage life of the paper are directly related to the modulation of the paper stock; the general modulation process can be roughly divided into the following three steps: A. b, dispersing pulp, B, pulping, C, adding glue and filling; then the paper making process is carried out, the main work of the paper making department is to uniformly interweave and dehydrate the thin paper stock, and then the paper stock is dried, calendered, rolled, cut, sorted and packaged to obtain the paper for market sale.

Remove the festival and be the must process in the thick liquids screening process to get rid of the impurity such as thick cellulose in the thick liquids of back of cooking, thick liquids pressure screen is the important screening installation who removes the festival in-process, but current thick liquids pressure screen is screening the course of working, the inefficiency to the preliminary screening of impurity such as thick cellulose, in the screening process, cause the jam of screen drum upper aperture easily, influence the normal screening processing of thick liquids pressure screen equipment, reduce screening efficiency, increase the equipment maintenance cost. Therefore, the utility model provides a thick liquids pressurized screen to solve the problem of proposing among the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thick liquids pressurized screen to solve the problem that proposes among the above-mentioned background art.

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

a slurry pressure screen comprises a shell, wherein a top plate is arranged on the upper side of the shell, a volute is arranged on the upper side of the top plate, the upper right side of the volute is communicated with a slurry inlet, the lower right side of the shell is communicated with a good slurry outlet, the lower left side of the volute is communicated with a tail slurry outlet, a heavy impurity collector is installed at the tail slurry outlet, a stirring blade is rotatably connected to the center of the volute and connected with a stirring shaft, the stirring shaft penetrates through the shell and is connected with a motor, sealing fillers are arranged at the positions of the stirring shaft, the shell and the top plate, the connecting position of the stirring shaft and a screen drum is flexibly sealed, the sealing performance during rotation is guaranteed, an arc-shaped grid plate is arranged on the inner layer of the volute, and a blanking pipe is arranged on the upper left side of the grid plate;

the downside of unloading pipe passes through bellows intercommunication screen cylinder, and a plurality of damping device are installed to the upper and lower both sides of screen cylinder, support the screen cylinder, and linear vibration motor is installed to the upside of screen cylinder, drives the screen cylinder and is vibration from top to bottom, the outside of (mixing) shaft is equipped with a plurality of dislocation arrangement's rotor, clears up the adhesion at the inboard thick liquids of screen cylinder, the downside of casing is equipped with the support column, and the support column is equipped with shock attenuation gasket with damping device's junction.

As a further aspect of the present invention, the spiral casing inner chamber is arranged downward in rotation, and the opening is gradually reduced to accelerate the flow rate.

As the utility model discloses scheme further again, the outstanding roof of unloading pipe, the upside of unloading pipe are equipped with the screen cloth, and make full use of centrifugal force passes through the tail thick liquid export discharge with the long fiber.

As the utility model discloses further scheme again, the lateral wall lower extreme of screen drum is equipped with the clearance door, conveniently clears up inside the screen drum.

As the utility model discloses scheme further still, the outside of screen cylinder is equipped with the fin that the circumference distributes, and the fin sets up towards slope downwards, transports the thick liquids in the outside.

As the utility model discloses further scheme again, damping device includes center post one, and the tip of center post one cup joints in the sleeve, and telescopic inboard sliding connection has the sleeve pipe, and the sleeve inboard is equipped with the elastic sealing pad, and the sleeve pipe is fixed in the outside of center post one, and sleeve and intraductal spring that is equipped with carry out the shock attenuation.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a structure of spiral case utilizes centrifugal force and gravity to separate thick liquids, and the stirring leaf stirring improves the separation efficiency of tail pulps such as bold impurity and thick fibre.

2. The utility model discloses a screen cylinder of up-and-down motion prevents the hole jam, guarantees the continuous normal operating of screen cylinder, and its maintenance cost of greatly reduced improves screening production efficiency, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural view of a pulp pressure screen.

Fig. 2 is a schematic top view of a pulp press screen.

Fig. 3 is an enlarged schematic view of a in fig. 1.

Fig. 4 is a schematic perspective view of a discharge pipe in a pulp pressure screen.

In the figure: 1. a housing; 2. a pulp inlet; 3. a good pulp outlet; 4. a tail slurry outlet; 5. a volute; 6. a grid plate; 7. a central column I; 8. a sleeve; 9. a spring; 10. stirring blades; 11. a discharging pipe; 12. a top plate; 13. a bellows; 14. a linear vibration motor; 15. a damping device; 16. a screen cylinder; 17. a rotor; 18. a stirring shaft; 19. a motor; 20. a fin; 21. cleaning the door; 22. and (4) a support column.

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 creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in the embodiment of the present invention, a slurry pressure sieve includes a housing 1, a top plate 12 is disposed on an upper side of the housing 1, a volute 5 is disposed on an upper side of the top plate 12, a right upper side of the volute 5 is communicated with a slurry inlet 2, an inner cavity of the volute 5 is disposed downward in a rotating manner, and an opening gradually decreases to accelerate a flow rate, a right lower side of the housing 1 is communicated with a good slurry outlet 3, a left lower side of the volute 5 is communicated with a tail slurry outlet 4, a heavy impurity collector is installed at the tail slurry outlet 4, a stirring vane 10 is rotatably connected to a center of the volute 5, the stirring vane 10 is connected to a stirring shaft 18, the stirring shaft 18 penetrates through the housing 1 and is connected to a motor 19, sealing fillers are disposed at the positions of the stirring shaft 18, the housing 1 and the top plate 12, a connection position of the stirring shaft 18 and a screen drum 16 adopts flexible sealing to ensure sealing during rotation, an inner layer of the volute 5 is provided with an arc grid plate 6, a blanking pipe 11 is arranged at the left upper side of the grid plate 6, the blanking pipe 11 protrudes out of the top plate 12, a screen is arranged at the upper side of the blanking pipe 11, and long fibers are discharged through the tail pulp outlet 4 by fully utilizing centrifugal force;

the lower side of the blanking pipe 11 is communicated with a screen drum 16 through a corrugated pipe 13, a plurality of damping devices 15 are mounted on the upper side and the lower side of the screen drum 16 to support the screen drum 16, a linear vibration motor 14 is mounted on the upper side of the screen drum 16 to drive the screen drum 16 to vibrate up and down, fins 20 distributed circumferentially are arranged on the outer side of the screen drum 16, the fins 20 are arranged in a downward inclined manner to transport slurry on the outer side, a plurality of rotor wings 17 arranged in a staggered manner are arranged on the outer side of the stirring shaft 18 to clean slurry adhered to the inner side of the screen drum 16, a cleaning door 21 is arranged at the lower end of the side wall of the screen drum 16 to facilitate cleaning the inside of the screen drum 16, a support column 22 is arranged on the lower side of the shell 1, a damping gasket is arranged at the joint of the support column 22 and the damping devices 15, each damping device 15 comprises a central column 7, the end part of the central column one 7 is sleeved in the sleeve 8, and the inner side of the sleeve 8 is connected with a sleeve in a sliding manner, an elastic sealing gasket is arranged on the inner side of the sleeve 8, the sleeve is fixed on the outer side of the first central column 7, and a spring 9 is arranged in the sleeve 8 and the sleeve for damping.

The utility model discloses a theory of operation is: when in work, slurry enters from the slurry inlet 2 and is transported downwards through the rotation of the volute 5, meanwhile, the opening is reduced, the flow velocity is accelerated, the motor 19 drives the stirring shaft 18 to rotate, then the stirring blade 10 is driven to rotate, the liquid rotating speed is further accelerated through the grid plate 6, the long fibers and heavy impurities are collected through the heavy impurity catcher and discharged from the tail slurry outlet 4, the slurry enters the screen cylinder 16 from the blanking pipe 11, the conforming pulp is extruded out of the screen cylinder 16 by the combined action of the external pressure and the rotor wing 17, is discharged from the good pulp outlet 3, simultaneously, drive screen cylinder 16 through linear vibration motor 14 and vibrate from top to bottom to carry out the shock attenuation through damping device 15, drive screen cylinder 16's filtration pore removal, cooperation rotor 17, convenient clearance prevents the hole jam, guarantees screen cylinder 16's the normal operating that lasts, its maintenance cost of greatly reduced improves screening production efficiency, and the practicality is strong.

The utility model discloses a spiral case 5's structure utilizes centrifugal force and gravity to separate thick liquids, and stirring leaf 10 stirs, improves the separation efficiency of tail thick liquids such as bold impurity and thick fibre, simultaneously, through the screen drum 16 of up-and-down motion, prevents the hole jam, guarantees the continuous normal operating of screen drum 16, and its maintenance cost of greatly reduced improves screening production efficiency, and the practicality is strong.

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. The slurry pressure screen comprises a shell (1) and is characterized in that a top plate (12) is arranged on the upper side of the shell (1), a volute (5) is arranged on the upper side of the top plate (12), the upper right side of the volute (5) is communicated with a slurry inlet (2), the lower right side of the shell (1) is communicated with a good slurry outlet (3), the lower left side of the volute (5) is communicated with a tail slurry outlet (4), a heavy impurity catcher is installed at the tail slurry outlet (4), a stirring blade (10) is rotatably connected to the center of the volute (5), the stirring blade (10) is connected with a stirring shaft (18), an arc-shaped grid plate (6) is arranged on the inner layer of the volute (5), and a discharging pipe (11) is arranged on the upper left side of the grid plate (6);

bellows (13) intercommunication screen cylinder (16) are passed through to the downside of unloading pipe (11), and a plurality of damping device (15) are installed to the upper and lower both sides of screen cylinder (16), and linear vibration motor (14) are installed to the upside of screen cylinder (16), drive screen cylinder (16) and do vibration from top to bottom, the outside of (mixing) shaft (18) is equipped with a plurality of dislocation arrangement's rotor (17), the downside of casing (1) is equipped with support column (22), and support column (22) are equipped with shock attenuation gasket with the junction of damping device (15).

2. A pulp press screen according to claim 1, characterized in that the inner chamber of the volute (5) is arranged rotationally downwards and the opening is tapered.

3. A pulp press screen according to claim 1, characterised in that the blanking pipe (11) protrudes from the top plate (12), and that the upper side of the blanking pipe (11) is provided with a screening net.

4. A pulp press screen according to claim 1, characterized in that the lower end of the side wall of the screen cylinder (16) is provided with a cleaning gate (21).

5. A pulp press screen according to claim 1, characterized in that the outside of the screen cylinder (16) is provided with circumferentially distributed fins (20), the fins (20) being arranged obliquely downwards.

6. The pulp pressure screen according to claim 1, wherein the damping device (15) comprises a first central column (7), the end of the first central column (7) is sleeved in the sleeve (8), the inner side of the sleeve (8) is slidably connected with a sleeve, the inner side of the sleeve (8) is provided with an elastic sealing gasket, the sleeve is fixed on the outer side of the first central column (7), and the sleeve (8) and the sleeve are internally provided with a spring (9).