CN219568464U

CN219568464U - Pressure screen device for papermaking

Info

Publication number: CN219568464U
Application number: CN202320302421.4U
Authority: CN
Inventors: 张吉祥; 苗海滨; 李英杰; 王玉鹏; 孙武军
Original assignee: Shandong Jiefeng Machinery Manufacturing Co ltd
Current assignee: Shandong Jiefeng Machinery Manufacturing Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-08-22
Anticipated expiration: 2033-02-24

Abstract

The utility model provides a pressure screen device for papermaking, which comprises a mounting frame, wherein a pressure screen cylinder body is mounted on the upper surface of the mounting frame, a pulp inlet chamber box body is integrally formed on the outer wall of the pressure screen cylinder body, a pulp inlet pipe body penetrates through the inner wall of the pulp inlet chamber box body, a first pulp inlet through hole and a second pulp inlet through hole are symmetrically formed in the inner wall of the pressure screen cylinder body, a pulp baffle plate is integrally formed in the inner wall of the pressure screen cylinder body, a conical box body penetrates through the inner bottom wall of the mounting frame, a transmission mechanism is installed through the inner bottom wall of the conical box body, and the upper surface of the transmission mechanism is connected with a screen cylinder. According to the utility model, the slurry baffle plate is arranged at the second slurry inlet through hole, so that the slurry baffle plate has the advantages of realizing the slurry baffle effect, avoiding the slurry inlet from directly washing the screen cylinder and the blades, prolonging the service life of the screen cylinder and the blades, and playing a role in guiding flow and reducing energy consumption.

Description

Pressure screen device for papermaking

Technical Field

The utility model relates to the technical field of pressure screens, in particular to a pressure screen device for papermaking.

Background

The working principle of the pressure screen is that in the rotating process of the pressure screen transmission mechanism, blades on the transmission mechanism are also called rotor wings, and move along the surface of the screen cylinder (the gap between the blades and the screen cylinder is adjustable), so that pressure is generated on slurry, the pressure difference between the inside and the outside of the screen cylinder is increased, and the slurry passes through the screen cylinder; when the gap between the tail part of the rotor wing and the screen cylinder is gradually increased, the pressure of the rotor wing on the pulp is reduced, local negative pressure appears in the area, when the negative pressure makes the absolute values of the pressure of the pulp inside and outside the screen cylinder equal, the pulp stops sieving, and when the negative pressure continues to increase, the moisture and part of the pulp in the good pulp outside the screen cylinder returns through the screen cylinder to play a role in backwashing the pulp mass and long fiber impurities on the screen cylinder, so that the continuous normal operation of the pressure screen is ensured;

but in the prior art, when the double-pulp-feeding compact pressure screen feeds pulp, the transmission mechanism is directly impacted, so that the service life of the transmission mechanism is reduced, the screening effect of the existing pressure screen is poor, and the pulp-making pulp yield is lower.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a pressure screen apparatus for papermaking that solves or alleviates the technical problems of the prior art, and at least provides a beneficial alternative.

The technical scheme of the embodiment of the utility model is realized as follows: the utility model provides a pressure screen device for papermaking, includes the mounting bracket, the last surface mounting of mounting bracket has the pressure screen barrel, the outer wall integrated into one piece of pressure screen barrel has into thick liquid room box, the inner wall of advancing thick liquid room box runs through and has advanced thick liquid pipe body, first thick liquid through-hole and second thick liquid through-hole have been seted up to the inner wall symmetry of pressure screen barrel, the inner wall integrated into one piece of pressure screen barrel has the fender thick liquid board, the inboard diapire of mounting bracket runs through has the toper box, the inboard diapire of toper box runs through installs drive mechanism, drive mechanism's upper surface is connected with the screen cylinder, the lower surface mounting of screen cylinder in the upper surface of toper box, drive mechanism with form good thick liquid room between the toper box, the inner wall of toper box runs through and has out thick liquid pipe body, the carousel is installed on the top of drive mechanism pivot, the blade is evenly installed to the outer wall of carousel, the inner wall symmetry of pressure screen barrel runs through and has water pipe and downcomer, the screen cylinder with form the foreign matter between the screen cylinder.

Further preferably, the motor is installed on the upper surface of the mounting frame, the first belt pulley is installed on the output shaft of the motor, the second belt pulley is installed at the bottom end of the rotating shaft of the transmission mechanism, and the belt body is attached to the outer wall of the first belt pulley and the outer wall of the second belt pulley.

Further preferably, the inner wall of the pressure screen cylinder symmetrically penetrates through an upper deslagging pipe body and a lower deslagging pipe body.

Further preferably, a fixing ring is mounted to the outer wall of the plurality of blades.

Further preferably, two collecting and blocking rings are symmetrically arranged on the inner wall of the pressure screen cylinder body.

By adopting the technical scheme, the embodiment of the utility model has the following advantages:

1. according to the utility model, the slurry baffle plate is arranged at the second slurry inlet through hole, so that the slurry baffle plate has the advantages of realizing the slurry baffle effect, avoiding the slurry inlet from directly washing the screen cylinder and the blades, prolonging the service life of the screen cylinder and the blades, and playing a role in guiding flow and reducing energy consumption.

2. According to the utility model, the slurry inlet chamber box body is arranged on the mounting frame, the slurry inlet pipe body is arranged on the slurry inlet chamber box body, slurry enters the slurry inlet chamber box body through the slurry inlet pipe body, and then enters the foreign matter chamber between the mounting frame and the screen cylinder through the first slurry inlet through hole and the second slurry inlet through hole on the slurry inlet chamber box body, so that the reduction rate of the treatment capacity caused by concentration of slurry is effectively reduced, and the separation effect of the foreign matter and the fiber is improved.

3. According to the utility model, the upper deslagging pipe body and the lower deslagging pipe body are arranged on the mounting frame, the upper deslagging pipe body is used for treating light foreign matters in the foreign matter chamber, the lower deslagging pipe body is used for treating heavy foreign matters at the bottom of the foreign matter chamber, and the upper water pipe and the lower water pipe are arranged, so that pulp entering the foreign matter chamber is washed and diluted, the fiber recovery of the pulp is facilitated, the foreign matters are diluted, the rapid entering into the good pulp chamber is facilitated, and the light foreign matter recovery effect is improved.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of the present utility model;

FIG. 2 is a perspective view of the structure of the present utility model;

FIG. 3 is a side cross-sectional view of the view of FIG. 1 according to the present utility model;

FIG. 4 is an enlarged block diagram of the area B of FIG. 3 according to the present utility model;

FIG. 5 is a side cross-sectional view of the C-C of FIG. 1 according to the present utility model;

FIG. 6 is a side cross-sectional view of the D-D structure of FIG. 1 according to the present utility model;

FIG. 7 is an enlarged block diagram of the area E of FIG. 6 according to the present utility model;

FIG. 8 is a side elevational structural view of the present utility model;

FIG. 9 is a side cross-sectional view of the F-F of FIG. 8 in accordance with the present utility model;

fig. 10 is an enlarged view of the G-zone of fig. 9 according to the present utility model.

Reference numerals: 1. a mounting frame; 2. a pressure screen cylinder; 3. a slurry inlet pipe body; 4. a slurry outlet pipe body; 5. an upper deslagging pipe body; 6. a pulp inlet chamber box body; 7. a water supply pipe; 8. a motor; 9. a transmission mechanism; 10. a first pulley; 11. a belt body; 12. a second pulley; 13. a conical box body; 14. a turntable; 15. a screen cylinder; 16. a blade; 17. a fixing ring; 18. collecting the blocking ring; 19. a lower deslagging pipe body; 20. a first slurry inlet through hole; 21. a second slurry inlet through hole; 22. a slurry baffle plate; 23. and a sewer pipe.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-10, an embodiment of the utility model provides a pressure screen device for papermaking, which comprises a mounting frame 1, wherein a pressure screen cylinder body 2 is mounted on the upper surface of the mounting frame 1, a pulp inlet chamber box body 6 is integrally formed on the outer wall of the pressure screen cylinder body 2, a pulp inlet pipe body 3 penetrates through the inner wall of the pulp inlet chamber box body 6, a first pulp inlet through hole 20 and a second pulp inlet through hole 21 are symmetrically formed on the inner wall of the pressure screen cylinder body 2, a pulp baffle 22 is integrally formed on the inner wall of the pressure screen cylinder body 2, a conical box body 13 penetrates through the inner bottom wall of the mounting frame 1, a transmission mechanism 9 penetrates through the inner bottom wall of the conical box body 13, a screen cylinder 15 is connected to the upper surface of the transmission mechanism 9, a good pulp chamber is formed between the transmission mechanism 9 and the screen cylinder 15 and the conical box body 13, a pulp outlet pipe body 4 penetrates through the inner wall of the conical box body 13, a rotary table 14 is mounted on the top end of the transmission mechanism 9, blades 16 are uniformly mounted on the outer wall of the rotary table 14, an upper water pipe 7 and a lower water pipe 23 symmetrically penetrate through the inner wall of the pressure screen cylinder body 2, and foreign matters are formed between the pressure screen cylinder body 2 and the screen cylinder body 15.

In one embodiment, the motor 8 is installed on the upper surface of the installation frame 1, the first belt pulley 10 is installed on the output shaft of the motor 8, the second belt pulley 12 is installed at the bottom of the rotating shaft of the transmission mechanism 9, the outer walls of the first belt pulley 10 and the second belt pulley 12 are attached with the belt body 11, the first belt pulley 10 is driven to rotate by the output shaft of the motor 8 through starting the motor 8, the second belt pulley 12 is driven to rotate by the first belt pulley 10 through the belt body 11, and the transmission mechanism 9 is driven to rotate by the second belt pulley 12.

In one embodiment, the inner wall of the pressure screen cylinder 2 symmetrically penetrates through the upper deslagging pipe body 5 and the lower deslagging pipe body 19, and light and heavy foreign matters are removed from the pressure screen cylinder 2 through the arrangement of the upper deslagging pipe body 5 and the lower deslagging pipe body 19.

In one embodiment, the outer walls of the plurality of blades 16 are fitted with a retaining ring 17, by the arrangement of the retaining ring 17, for reinforcing the position of the fixed blades 16.

In one embodiment, two collecting and blocking rings 18 are symmetrically arranged on the inner wall of the pressure screen cylinder 2, and the collecting and blocking rings 18 are used for conveniently blocking slurry in a foreign body chamber.

The utility model works when in work: slurry enters the slurry inlet chamber box body 6 through the slurry inlet pipe body 3, the slurry in the slurry inlet chamber box body 6 can enter a foreign matter chamber between the mounting frame 1 and the screen cylinder 15 through the first slurry inlet through hole 20 and the second slurry inlet through hole 21, the slurry baffle 22 is used for blocking the slurry discharged from the second slurry inlet through hole 21, the motor 8 is started at the moment, the output shaft of the motor 8 drives the first belt pulley 10 to rotate, the first belt pulley 10 drives the second belt pulley 12 to rotate through the belt body 11, the second belt pulley 12 drives the transmission mechanism 9 to rotate, the transmission mechanism 9 drives the rotary disc 14 to rotate, the rotary disc 14 simultaneously drives the blades 16 and the fixed ring 17 to rotate, water is injected into the foreign matter chamber through the water inlet pipe 7 and the water outlet pipe 23 at the moment, the slurry is stirred through the blades 16 and the fixed ring 17, then the slurry is filtered to the good slurry chamber through the screen cylinder 15, and the foreign matters in the good slurry chamber are discharged through the slurry outlet pipe body 4 at the moment through the blades 16 and the slag outlet pipe body 19.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a pressure screen device for papermaking, includes mounting bracket (1), its characterized in that: the upper surface of the mounting frame (1) is provided with a pressure screen cylinder body (2), the outer wall of the pressure screen cylinder body (2) is integrally formed with a pulp inlet chamber box body (6), the inner wall of the pulp inlet chamber box body (6) is penetrated with a pulp inlet pipe body (3), the inner wall of the pressure screen cylinder body (2) is symmetrically provided with a first pulp inlet through hole (20) and a second pulp inlet through hole (21), the inner wall of the pressure screen cylinder body (2) is integrally formed with a pulp baffle plate (22), the inner bottom wall of the mounting frame (1) is penetrated with a conical box body (13), the inner bottom wall of the conical box body (13) is penetrated with a transmission mechanism (9), the upper surface of the transmission mechanism (9) is connected with a screen cylinder (15), the lower surface of the screen cylinder (15) is arranged on the upper surface of the conical box body (13), a good pulp chamber is formed between the transmission mechanism (9) and the screen cylinder (15) and the conical box body (13), the inner wall of the conical box body (13) is penetrated with a pulp outlet pipe body (4), the top end of a rotating shaft of the transmission mechanism (9) is provided with a rotating disc (14), the outer wall of the rotating disc (14) is uniformly provided with blades (16), the inner wall of the pressure screen cylinder body (2) is symmetrically penetrated with a water inlet pipe (7) and a water outlet pipe (23), a foreign body chamber is formed between the pressure screen cylinder (2) and the screen cylinder (15).

2. The pressure screen apparatus for papermaking according to claim 1, wherein: the novel belt conveyor is characterized in that a motor (8) is mounted on the upper surface of the mounting frame (1), a first belt pulley (10) is mounted on an output shaft of the motor (8), a second belt pulley (12) is mounted at the bottom end of a rotating shaft of the transmission mechanism (9), and a belt body (11) is attached to the outer wall of the first belt pulley (10) and the outer wall of the second belt pulley (12).

3. The pressure screen apparatus for papermaking according to claim 1, wherein: the inner wall of the pressure screen cylinder body (2) symmetrically penetrates through an upper deslagging pipe body (5) and a lower deslagging pipe body (19).

4. The pressure screen apparatus for papermaking according to claim 1, wherein: a fixing ring (17) is mounted on the outer wall of the plurality of blades (16).

5. The pressure screen apparatus for papermaking according to claim 1, wherein: two collecting and blocking rings (18) are symmetrically arranged on the inner wall of the pressure screen cylinder body (2).