CN210621328U

CN210621328U - Long net paper machine's net limit wiper mechanism

Info

Publication number: CN210621328U
Application number: CN201921060907.1U
Authority: CN
Inventors: 吴贵兴
Original assignee: Green Forest Qingxin Paper Industrial Ltd
Current assignee: Green Forest Qingxin Paper Industrial Ltd
Priority date: 2019-07-07
Filing date: 2019-07-07
Publication date: 2020-05-26
Anticipated expiration: 2029-07-07

Abstract

The utility model belongs to the papermaking equipment field discloses a net limit wiper mechanism of fourdrinier machine, include along the first compression roller, the guide wire roller, the second compression roller that the screen cloth direction of motion arranged in proper order and set up the cleaning unit that sprays at the net limit position of screen cloth, the net limit sprays the cleaning unit and includes the spray pipe and is used for receiving the water receiving subunit that the spray pipe spouts the rivers that come out on the screen cloth and from the top projection of guide wire roller, the spray pipe is located between first compression roller and the guide wire roller and is located the screen cloth top, the water receiving subunit is located between guide wire roller and the second compression roller and is located the screen cloth top. The mechanism can collect high-speed water flow thrown by the screen cloth, and realizes effective control on the field production environment and effective cleaning of the net edge of the screen cloth.

Description

Long net paper machine's net limit wiper mechanism

Technical Field

The utility model relates to a papermaking equipment field, especially a net limit wiper mechanism of fourdrinier machine.

Background

Fourdrinier machines consist of a wet end (including headbox, former, press) and a dry end (drying, calendering, reeling). According to the number of the former and the drying dryer, the machine types can be divided into single long net, double long nets, multiple long nets, long net multi-cylinder, yankee type and the like; according to the vehicle speed, low speed and high speed can be divided. Paper machines for producing bulk products such as newsprint are high-speed paper machines, and have large output, the speed of the paper machine exceeds 1200m/min, and the width of the paper machine reaches 10 m.

The guide roll of the fourdrinier machine is matched with the screen cloth and needs to be cleaned in the operation process.

The applicant, zhejiang huayu paper industry limited, has proposed an invention patent ZL201711137125.9 in 2017, which discloses a wire section system of a paper machine, comprising a frame, a driving roller, a driven roller, a guide wire roller set and a mesh, wherein the guide wire roller set comprises a plurality of first guide mechanisms which are arranged on the ground and provided with first guide wire rollers, and a plurality of second guide mechanisms which are arranged on the frame and provided with second guide wire rollers, the first guide mechanisms and the second guide mechanisms are distributed in a staggered manner along the conveying direction of the mesh, the uppermost end of each first guide wire roller is higher than the lowermost end of each second guide wire roller, a first spray pipe which is positioned above the first guide wire roller is further arranged on the frame close to the first guide wire roller, and a plurality of first high-pressure spray headers which spray directions face the top of the first guide wire rollers are arranged on the first spray pipe. The screen cloth is washed through the first high-pressure spray header on the first spray pipe, the second high-pressure spray header on the second spray pipe and the third high-pressure spray header on the third spray pipe, impurities on the screen cloth can be washed away at the moment, and the quality of finished paper at the later stage is improved.

Wherein, it washs the front of screen cloth through first shower and second shower.

In practical applications, the web edge of the mesh is an additional place to be cleaned. The net side is cleaned by a large water pressure because impurities are easily deposited, and the cleaning is divided into two times, wherein the first time is the cleaning by a large water flow, and the second time is the cleaning by a small water flow but a large water pressure.

The technical problem that this application will solve is: when the net edge of the net cloth is cleaned by adopting larger water flow, the net cloth which runs at a high speed is prevented from projecting the water flow randomly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a net limit wiper mechanism of fourdrinier paper machine, this mechanism can collect the high-speed rivers that the screen cloth throwed, realizes effective control to the on-the-spot production environment and the effective clearance to the net limit of screen cloth.

The utility model provides a technical scheme does: the utility model provides a net limit wiper mechanism of fourdrinier machine, includes the first compression roller, leads net roller, second compression roller and the setting that arrange in proper order along the screen cloth direction of motion and sprays the cleaning unit at the net limit position of screen cloth, the net limit sprays the cleaning unit and includes the spray pipe and is used for receiving the spray pipe and spouts the water receiving subunit of the rivers that come out on the screen cloth and cast from the top of leading the net roller to the screen cloth, the spray pipe is located between first compression roller and the leading net roller and is located the screen cloth top, the water receiving subunit is located and leads between net roller and the second compression roller and is located the screen cloth top.

In the above-mentioned net edge cleaning mechanism of the fourdrinier machine, the water receiving sub-unit comprises a baffle plate positioned on a casting path of water flow cast from the net cloth on the top of the net guide roller, a diversion trench positioned below the baffle plate, and an elastic plate positioned on the baffle plate and right above the diversion trench; the upper end of the elastic plate is connected to the baffle, and the lower end of the elastic plate is a free end and is located right above the diversion trench.

In the above-mentioned wire edge cleaning mechanism of the fourdrinier machine, the elastic plates are a plurality of and are connected to the baffle plate side by side.

In the above-mentioned net edge cleaning mechanism of the fourdrinier machine, the guiding gutter extends to the outside of the net cloth, and a drainage channel is arranged below one end part of the guiding gutter; the other end part of the diversion trench is a closed end.

In the above-mentioned wire edge cleaning mechanism of the fourdrinier machine, the baffle is inclined toward the water spraying pipe at an angle of not more than 15 °.

In the above-mentioned net edge cleaning mechanism of the fourdrinier paper machine, the water spray pipe is provided with water spray bar holes, and an included angle between water flow sprayed from the water spray bar holes and the movement direction of the net cloth is smaller than 90 °.

In the above-mentioned net edge cleaning mechanism of the fourdrinier machine, the angle between the water flow sprayed from the water spray bar holes and the moving direction of the net cloth is 60-80 °.

The long net paper machine net edge cleaning mechanism further comprises a frame, and the first pressing roller, the net guide roller, the second pressing roller, the water spraying pipe and the water receiving sub-unit are all fixed on the frame.

After the technical scheme is adopted in the utility model, its beneficial effect who has is:

this scheme sets up the spray pipe in one side of leading the net roller, sets up water receiving subunit in one side in addition of leading the net roller, and water receiving subunit sets up on rivers throw the route, can effectively collect along with the screen cloth high-speed operation throw the water that comes out, avoids the splash to overflow all around, improves workshop production environment and can effectual clearance screen cloth's selvedge.

Drawings

Fig. 1 is a front view of embodiment 1 of the present invention;

fig. 2 is a right side view of the water receiving subunit according to embodiment 1 of the present invention.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the following detailed description, but the present invention is not limited thereto.

Example 1:

referring to fig. 1-2, a net edge cleaning mechanism of a fourdrinier paper machine includes a first press roller 1, a net guide roller 2, a second press roller 3 and a spray cleaning unit 4 disposed at the net edge of a net cloth a, which are sequentially arranged along the movement direction of the net cloth, the net edge spray cleaning unit 4 includes a water spray pipe 41 and a water receiving subunit 42 for receiving the water flow sprayed onto the net cloth by the water spray pipe 41 and projected from the top of the net guide roller 2, the water spray pipe 41 is located between the first press roller 1 and the net guide roller 2 and above the net cloth, and the water receiving subunit 42 is located between the net guide roller 2 and the second press roller 3 and above the net cloth. In addition, preferably, the machine further comprises a frame 5, and the first pressing roller 1, the wire guide roller 2, the second pressing roller 3, the water spraying pipe 41 and the water receiving sub-unit 42 are all fixed on the frame 5.

In this embodiment, the spray pipe 41 sprays water to the net edge of screen cloth a, i.e. the edge of screen cloth, through high-speed rivers washing net edge, and simultaneously, screen cloth a moves at a high speed, throws away the water on screen cloth a at the top of guide wire roller 2, and the rivers that throw away become high-speed water smoke and drop of water, receive it and derive it through water receiving subunit 42.

In this embodiment, the water receiving subunit 42 includes a baffle 43 located on a casting path of the water flow cast from the mesh cloth on the top of the mesh guide roller 2, a diversion groove 44 located below the baffle 43, and an elastic plate 45 located on the baffle 43 and directly above the diversion groove 44; the upper end of the elastic plate 45 is connected to the baffle 43, and the lower end of the elastic plate 45 is a free end and is located right above the diversion trench 44. Preferably, the guiding gutter 44 of the water receiving subunit 42 is fixed on the frame 5, and the baffle 43 is fixed on one side of the guiding gutter 44.

In this embodiment, the baffle 43 blocks the water mist, water droplets, and water flow, and the elastic plate 45 is disposed on the baffle 43 to absorb the impact force of the water, so as to prevent the water from splashing around the water droplets on the baffle 43, and the water is collected into the guiding groove 44 under the action of the baffle 43 and the elastic plate 45 and guided out.

Preferably, the elastic plates 45 are plural and are connected to the baffle 43 side by side. In this embodiment, the number of the elastic plates 45 is 2.

Preferably, the flow guide groove 44 extends to the outside of the mesh, and a drainage groove 46 is arranged below one end part of the flow guide groove 44; the other end of the guide groove 44 is a closed end. The drain channel drains 46 into an external sewage treatment plant.

In order to improve the water-retaining effect of the baffle 43, the baffle 43 is inclined toward the spray pipe 41 by an angle not exceeding 15 °, in this embodiment 10 °, and is beneficial to guiding water into the guide groove 44.

In order to improve the cleaning effect of the net edge, the water spraying pipe 41 is provided with water spraying bar holes, the included angle between the water flow sprayed from the water spraying bar holes and the movement direction of the net cloth is 75 degrees, the water flow of the water sprayed from the water spraying bar holes in the embodiment is greatly beneficial to cleaning the net edge, and the water pressure is high, so that accumulated dirt is flushed away and prevented from being accumulated.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. The utility model provides a net limit wiper mechanism of fourdrinier machine, includes the first compression roller, the guide wire roller, the second compression roller that arrange in proper order along the screen cloth direction of motion and sets up the cleaning unit that sprays at the net limit position of screen cloth, its characterized in that, the net limit sprays the cleaning unit and includes the spray pipe and is used for receiving the spray pipe and spouts the water receiving subunit of the rivers that come out on the screen cloth and from the top of guide wire roller, the spray pipe is located between first compression roller and the guide wire roller and is located the screen cloth top, the water receiving subunit is located between guide wire roller and the second compression roller and is located the screen cloth top.

2. The net edge cleaning mechanism of the fourdrinier machine according to claim 1, wherein the water receiving sub-unit comprises a baffle plate positioned on a casting path of water flow cast from the net cloth on the top of the net guide roller, a diversion trench positioned below the baffle plate, and an elastic plate positioned on the baffle plate and right above the diversion trench; the upper end of the elastic plate is connected to the baffle, and the lower end of the elastic plate is a free end and is located right above the diversion trench.

3. The fourdrinier wire edge cleaning mechanism according to claim 2, wherein said resilient plates are provided in plurality and are attached side by side to the fence.

4. The fourdrinier wire edge cleaning mechanism according to claim 2, wherein said guiding grooves extend to the outside of the screen cloth, and a drainage groove is provided below one end of said guiding grooves; the other end part of the diversion trench is a closed end.

5. The fourdrinier wire edge cleaning mechanism according to claim 2, wherein said baffle is inclined at an angle of not more than 15 ° towards the direction of the water jet.

6. The fourdrinier wire edge cleaning mechanism according to claim 1, wherein the water spraying pipes are provided with water spraying bar holes, and an included angle between water flow sprayed from the water spraying bar holes and the moving direction of the screen cloth is less than 90 °.

7. The fourdrinier wire edge cleaning mechanism according to claim 6, wherein the angle between the water jet stream from the water jet strip holes and the direction of movement of the screen cloth is 60-80 °.

8. The fourdrinier wire edge cleaning mechanism according to any one of claims 1 to 7, further comprising a frame, wherein the first press roll, the wire guide roll, the second press roll, the water spray pipe and the water receiving subunit are fixed to the frame.