CN211340209U

CN211340209U - Double-layer filtering device for paper machine outer discharge white water

Info

Publication number: CN211340209U
Application number: CN201921770261.6U
Authority: CN
Inventors: 李涛
Original assignee: Huisheng Group Pingyuan Paper Co ltd
Current assignee: Huisheng Group Pingyuan Paper Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-08-25
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses a double-layer filtering device for white water outside a paper machine, which mainly relates to the technical field of paper making, and comprises an inclined net, wherein the inclined net is a double-layer filter net with different meshes, the double-layer filter net comprises a first layer filter net and a second layer filter net, the first layer filter net is a nylon filter net with 80 meshes, and forms a 45-degree included angle with the ground, the second layer filter net is a nylon filter net with 90 meshes, and forms a 30-degree included angle with the ground, the front end of the inclined net is lapped on a sludge collecting pipe orifice and fixed by a steel bar, the rear end of the inclined net is connected with a sewage overflow trough, a sewage inlet pipe is arranged above the overflow trough, the bottom of the overflow trough is supported by a stainless steel bracket, a slope is arranged below the inclined net and is used for collecting filtrate, the filtrate reaches a filtrate outlet through the slope, and reaches a middle section water sedimentation tank through the filtrate trough, a double-inclined, the sludge collection amount is increased, the middle section water settling time is reduced, the sewage treatment cost is reduced, and the papermaking pollution is effectively reduced.

Description

Double-layer filtering device for paper machine outer discharge white water

Technical Field

The utility model mainly relates to the technical field of papermaking, specifically a double-deck filter equipment of outer plain boiled water of paper machine.

Background

At present, with the continuous development of the papermaking industry, the papermaking is more and more green and sustainable. Therefore, the waste water treatment in the paper industry is also more and more important and is a problem which is continuously broken through. Most of the waste water of the whole paper making enterprise comes from the discharged white water of the pulping and paper making workshop. In general, white water discharged from a workshop is treated by a middle-stage water system, and is discharged to a sewage treatment center after being qualified, so that the white water is further purified and treated, and the national discharge standard is reached. Therefore, the middle-section water treatment plays a critical role, and most of middle-section water treatment systems adopt a physical method to carry out filtration and sedimentation, so that the purification purpose is achieved. The existing single-layer inclined-net filtering has a common filtering effect, and the suspended solid content of the filtered white water SS is high, so that the influent water concentration of sewage treatment is high, the treatment difficulty is increased, and the treatment cost is increased.

SUMMERY OF THE UTILITY MODEL

In view of the defects in the prior art, the utility model provides a double-deck filter equipment of outer plain boiled water of paper machine.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a double-deck filter equipment of paper machine outer drainage plain boiled water which characterized in that: the inclined wire mesh type sewage treatment device comprises an inclined wire mesh, wherein the inclined wire mesh is a double-layer filter mesh with different meshes, the inclined wire mesh type sewage treatment device comprises a first layer filter mesh and a second layer filter mesh, the first layer filter mesh is a nylon filter mesh with 80 meshes and forms a 45-degree included angle with the ground, the second layer filter mesh is a nylon filter mesh with 90 meshes and forms a 30-degree included angle with the ground, the front end of the inclined wire mesh is put on a sludge collecting pipe orifice and fixed by steel bars, the rear end of the inclined wire mesh type sewage collecting pipe orifice is connected with a sewage overflow trough, a sewage feeding pipe is arranged above the overflow trough, the bottom of the overflow trough is supported by a stainless steel support, a slope is arranged below the.

As a further improvement of the utility model, the slope of the bottom is a cement slope with an angle of 5 degrees.

As a further improvement of the utility model, the filtrate tank is of an inward-closing structure and is a stainless steel product

Compared with the prior art, the utility model discloses the beneficial effect who has does: due to the fact that the double inclined nets are adopted, the inclined nets are different in angle and mesh number, secondary filtration can be achieved when water coming from a workshop is filtered, suspended solid of filter liquor SS is greatly reduced, the filtering effect is improved, sludge collection amount is increased, middle section water settling time is shortened, the cost of sewage treatment is reduced, and papermaking pollution is effectively reduced.

Drawings

The invention will be further described with reference to the accompanying drawings and specific embodiments:

fig. 1 is a schematic structural view of a double-layer filtering device for white water outside a paper machine according to the present invention;

in the figure: 1 sewage feed pipe, 2 external baffle, 3 first layer filter screen, 4 second layer filter screen, 5 overflow launder, 6 stainless steel support, 7 sludge collecting pipe, 8 slope, 9 filtrate tank, 10 filtrate outlet, 11 middle section water sedimentation tank.

Detailed Description

In order to make the technical solution and the advantages of the present invention more clear and obvious, the present invention is further described in detail with reference to the following specific embodiments, it should be understood that the specific embodiments described herein are only used for understanding the present invention, and are not used for limiting the present invention, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is the utility model relates to a paper machine outer row white water double-deck filter equipment's structure schematic diagram, including oblique net, oblique net is the double-deck filter screen of different mesh numbers, including first layer filter screen 3, second floor filter screen 4, first layer filter screen 3 is 80 mesh nylon filter screen, becomes 45 contained angles with ground, and second floor filter screen 4 is 90 mesh nylon filter screen, becomes 30 contained angles with ground, and oblique net front end is taken at sludge collecting pipe 7 mouths, and is fixed with the billet, and sewage overflow launder 5 is connected to the rear end, overflow launder 5 top is sewage inlet pipe 1, and overflow launder 5 bottom is supported through stainless steel support 6, and oblique net below is slope 8, is used for collecting the filtrating, the filtrating reachs filtrate outlet 10 through slope 8, through filtrating groove 9, reachs water sedimentation tank 11.

The slope 8 at the bottom is a cement slope surface with an angle of 5 degrees, the filtrate tank 9 is of an inward-closing structure and is a stainless steel product

Due to the fact that the double-inclined-net type filter screen is adopted, the first layer of filter screen 3 and the second layer of filter screen 4 are respectively 80-mesh nylon filter screens and form an included angle of 45 degrees with the ground, the second layer of filter screen 4 is 90-mesh nylon filter screens and form an included angle of 30 degrees with the ground, the inclined-net angles are different, the mesh numbers are different, and therefore when water coming from a workshop is filtered, secondary filtration can be achieved, the suspended solid content of filter liquor SS is greatly reduced, the filtering effect is improved, the sludge collection amount is increased, the middle-section water settling time is shortened, the cost of sewage treatment is reduced, and papermaking pollution is effectively reduced.

It is noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Other technical features are known to those skilled in the art except for the technical features described in the specification, and are not described in detail herein in order to highlight the innovative features of the present invention.

Claims

1. The utility model provides a double-deck filter equipment of paper machine outer drainage plain boiled water which characterized in that: including oblique net, oblique net is the double-deck filter screen of different mesh numbers, including first layer filter screen (3), second floor filter screen (4), first layer filter screen (3) are 80 mesh nylon filter screen, become 45 contained angles with ground, and second floor filter screen (4) are 90 mesh nylon filter screen, become 30 contained angles with ground, and oblique net front end is taken at sludge collecting pipe (7) mouth, and is fixed with the billet, and sewage overflow launder (5) are connected to the rear end, overflow launder (5) top is sewage inlet pipe (1), and overflow launder (5) bottom is supported through stainless steel support (6), and oblique net below is slope (8), is used for collecting filtrating, filtrating reachs filtrating export (10) through slope (8), through filtrating groove (9), reachs middle section water sedimentation tank (11).

2. The double-layer filtering device for paper machine outer discharge white water according to claim 1, characterized in that: the slope (8) at the bottom is a cement slope surface with an angle of 5 degrees.

3. The double-layer filtering device for paper machine outer discharge white water according to claim 1, characterized in that: the filtrate tank (9) is of an inward-closing structure and is made of stainless steel.