CN216585904U - Clearing device for tiny light impurities in papermaking production - Google Patents

Abstract

The utility model relates to a device for removing tiny light impurities in papermaking production, which comprises a shell, a partition plate and a collecting tank, wherein the shell is provided with a plurality of grooves; the four partition plates are horizontally arranged in the shell side by side from left to right, and the interior of the shell is sequentially divided into a first-section chute, a second-section chute, a third-section chute, a fourth-section chute and a fifth-section chute from left to right, wherein a pulp inlet is formed in the first-section chute, and a pulp outlet is formed in the fifth-section chute; the front end or the rear end of each clapboard is provided with a runner opening for communicating two corresponding adjacent chutes, and the runner openings on the two adjacent clapboards are staggered from front to back; slag discharge ports are respectively arranged on the front side wall and the rear side wall of the shell and at positions corresponding to the runner ports, and the slag discharge ports are positioned on the left side of the corresponding runner ports; the two collecting tanks are respectively fixed on the front outer wall and the rear outer wall of the shell, and the openings of the two collecting tanks are arranged upwards and are positioned right below the corresponding slag discharging ports. The device does not need to increase power consumption, has less slurry loss, can continuously remove tiny light impurities in the slurry, and does not need operation cost.

Description

Device for removing tiny light impurities in papermaking production

Technical Field

The utility model relates to the field of papermaking, in particular to a device for removing tiny light impurities in papermaking production.

Background

The pulp refining system in the paper-making production process flow generally comprises pulp processing equipment such as a first-stage pressure screen, a second-stage pressure screen, 1-5 stages of slag separators, a vibrating screen, a thickener and the like, and is used for stripping and removing bad impurities or fibers such as large and small particles of heavy sand, impurities, coarse slag and the like in pulp and improving the product quality. Tiny light impurities (light black gray points and colored micro-plastics) are difficult to strip and remove due to small particles and light weight, and can enter a production system along with good pulp to influence the product quality. Light-weight slag separators are generally adopted in the industry for treatment, but the mode has poor effect, consumes power, has large slurry loss and is not generally adopted by most enterprises.

SUMMERY OF THE UTILITY MODEL

In summary, in order to overcome the defects of the prior art, the utility model provides a device for removing tiny light impurities in paper making production.

The technical scheme for solving the technical problems is as follows: a device for removing tiny light impurities in papermaking production comprises a shell, a partition plate and a collecting tank; the device comprises a shell, a plurality of partition plates, a plurality of slurry inlet holes, a plurality of slurry outlet holes and a plurality of slurry outlet holes, wherein the partition plates are horizontally arranged in the shell from left to right, and divide the interior of the shell into a first section chute, a second section chute, a third section chute, a fourth section chute and a fifth section chute from left to right; the front end or the rear end of each partition plate is provided with a runner port for communicating two corresponding adjacent chutes, and the runner ports on the two adjacent partition plates are staggered from front to back; slag discharge ports are respectively arranged on the front side wall and the rear side wall of the shell and at positions corresponding to the runner ports, and the slag discharge ports are positioned on the left side of the corresponding runner ports; the number of the collecting tanks is two, the two collecting tanks are respectively fixed on the front outer wall and the rear outer wall of the shell, and openings of the collecting tanks are upwards arranged and are positioned right below the corresponding slag discharging ports.

The utility model has the beneficial effects that: no power consumption is needed, the slurry loss is less, micro light impurities in the slurry can be continuously removed, and the operation cost is not needed.

On the basis of the scheme, the utility model can be further improved as follows:

furthermore, slag discharge adjusting plates are respectively arranged on the front outer side wall and the rear outer side wall of the shell at positions corresponding to the slag discharge openings, and the slag discharge adjusting plates can move up and down.

The beneficial effect of adopting the further scheme is as follows: the top of the deslagging adjusting plate is at a preset height relative to the liquid level in the chute, so that light impurities floating on the liquid level are continuously discharged.

Furthermore, bases which correspond to the slag discharge adjusting plates one to one are fixed on the front outer side wall and the rear outer side wall of the shell, the bases are of L-shaped structures, slag discharge screws penetrate through the bases in a threaded mode, and the slag discharge screws abut against the corresponding slag discharge adjusting plates and press the slag discharge adjusting plates on the outer side walls of the shell.

The beneficial effect of adopting the further scheme is as follows: the slag discharging adjusting plate can move up and down.

Furthermore, a liquid level adjusting plate is arranged in the five-section chute in a vertically sliding manner.

The beneficial effect of adopting the further scheme is as follows: the liquid level in the chute is kept in a preset range by sliding the height of the liquid level adjusting plate up and down.

Further, inner wall is equipped with vertical spout about five sections chutes relatively, the both ends of liquid level regulating plate are slidable respectively and are in two in the spout be equipped with on the spout and be used for fixing liquid level regulating plate's adjusting screw.

The beneficial effect of adopting the further scheme is as follows: the liquid level adjusting plate can slide up and down.

Drawings

FIG. 1 is a schematic top view of the present invention (arrows indicate the direction of flow of the slurry);

FIG. 2 is a side view of the slag discharging regulating plate at the position of the slag discharging port (the chain line indicates the liquid level);

fig. 3 is a sectional view a-a of fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a shell, 2, a partition board, 3, a collecting groove, 4, a first section of chute, 5, a second section of chute, 6, a third section of chute, 7, a fourth section of chute, 8, a fifth section of chute, 9, a slurry inlet, 10, a slurry outlet, 11, a runner port, 12, a slag discharge port, 13, a slag discharge adjusting plate, 14, a base, 15, slag discharge screws, 16, a liquid level adjusting plate, 17, a chute, 18 and adjusting screws.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1, a device for removing tiny light impurities in paper making production comprises a shell 1, a partition plate 2 and a collecting tank 3. The novel automatic slurry feeding device is characterized in that the partition boards 2 are arranged in the shell 1 horizontally from left to right, the interior of the shell 1 is divided into a first section chute 4, a second section chute 5, a third section chute 6, a fourth section chute 7 and a fifth section chute 8 from left to right, a slurry inlet 9 is formed in the first section chute 4, and a slurry outlet 10 is formed in the fifth section chute 8. The front end or the rear end of each clapboard 2 is provided with a runner port 11 for communicating two corresponding adjacent chutes, and the runner ports 11 on two adjacent clapboards 2 are staggered front and back. The positions of the front side wall and the rear side wall of the shell 1, which correspond to the runner port 11, are respectively provided with a slag discharge port 12, and the slag discharge port 12 is positioned on the left side of the runner port 11 correspondingly. The number of the collecting grooves 3 is two, the two collecting grooves 3 are respectively fixed on the front outer side wall and the rear outer side wall of the shell 1, and the openings of the collecting grooves 3 are arranged upwards and are positioned right below the corresponding slag discharge holes 12. The device is divided into a first-section chute 4, a second-section chute 5, a third-section chute 6, a fourth-section chute 7 and a fifth-section chute 8 by utilizing a partition plate 2, slurry flows through each chute in sequence after passing through a slurry inlet 9, tiny light impurities float upwards under the action of buoyancy in the flowing process, when the slurry flows through a corner, namely a corresponding runner port 11, the slurry turns to the runner port 11 (the runner port is arranged below the liquid level) on the corresponding partition plate 2 and enters the next chute, the concentration of the slurry on the liquid level is low before turning, the light impurities floating on the liquid level are mainly the light impurities, and the light impurities are blocked by the corresponding partition plate 2, discharged outwards from a corresponding overflow slag discharge port 12 and finally collected by a collecting tank 3 and then uniformly discharged outwards. After the slurry is treated by the multi-section chute, most of light impurities in the slurry are separated and discharged, and the product quality is improved.

As shown in fig. 2, the positions of the front and rear outer side walls of the housing 1 corresponding to the slag discharge port 12 are respectively provided with a slag discharge adjusting plate 13, and the slag discharge adjusting plate 13 is movable up and down, and has the following: the front outer side wall and the rear outer side wall of the shell 1 are fixedly provided with bases 14 which are in one-to-one correspondence with the slag discharge adjusting plates 13, the bases 14 are of L-shaped structures, slag discharge screws 15 penetrate through the bases 14 in a threaded manner, and the slag discharge screws 15 abut against the corresponding slag discharge adjusting plates 13 and press the slag discharge adjusting plates 13 on the outer side walls of the shell 1. Firstly loosening the slag discharging screw 15, then moving the slag discharging adjusting plate 13 up and down to a corresponding position, and finally screwing the slag screw 15 to press and fix the slag discharging adjusting plate 13. The top of the deslagging adjusting plate 13 is lower than the liquid level in the chute by 2-5 mm through the adjustment, so that light impurities floating on the liquid level can be continuously discharged.

As shown in fig. 3, a liquid level adjusting plate 16 is slidably provided in the five-segment chute 8, and includes the following components: inner wall is equipped with vertical spout 17 about five sections chutes 8 relatively, the both ends of level regulating plate 16 are slidable respectively and are in two in the spout 17 be equipped with on the spout 17 and be used for fixing level regulating plate 16's adjusting screw 18. Because the size of the pulp passing through the chute can change during production, when the size of the pulp in the chute is large, the height of the liquid level adjusting plate 16 needs to be reduced to maintain the liquid level in the chute, and when the size of the pulp is small, the height of the liquid level adjusting plate 16 is increased to maintain the liquid level.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (5)

1. A device for removing tiny light impurities in papermaking production is characterized by comprising a shell (1), a partition plate (2) and a collecting tank (3); the device comprises a shell (1), and is characterized in that four partition plates (2) are horizontally arranged in the shell (1) from left to right and divide the interior of the shell (1) into a first section chute (4), a second section chute (5), a third section chute (6), a fourth section chute (7) and a fifth section chute (8) from left to right, wherein a pulp inlet (9) is formed in the first section chute (4), and a pulp outlet (10) is formed in the fifth section chute (8); the front end or the rear end of each partition plate (2) is provided with a runner port (11) for communicating two corresponding adjacent chutes, and the runner ports (11) on the two adjacent partition plates (2) are arranged in a staggered manner from front to back; slag discharge ports (12) are respectively arranged on the front side wall and the rear side wall of the shell (1) and at positions corresponding to the runner ports (11), and the slag discharge ports (12) are positioned on the left side of the corresponding runner ports (11); the number of the collecting tanks (3) is two, the two collecting tanks (3) are respectively fixed on the front outer wall and the rear outer wall of the shell (1), and the openings of the collecting tanks (3) are upwards arranged and are positioned right below the corresponding slag discharge ports (12).

2. The device for removing the tiny light impurities in the papermaking production according to claim 1, characterized in that slag discharge adjusting plates (13) are respectively arranged on the front and rear outer side walls of the shell (1) at positions corresponding to the slag discharge openings (12), and the slag discharge adjusting plates (13) can be moved up and down.

3. The device for removing the tiny light impurities in the papermaking production according to claim 2, characterized in that bases (14) corresponding to the slag discharge adjusting plates (13) one by one are fixed on the front and rear outer side walls of the housing (1), the bases (14) are of L-shaped structures, slag discharge screws (15) penetrate through the bases (14) in a threaded manner, and the slag discharge screws (15) abut against the corresponding slag discharge adjusting plates (13) and press the slag discharge adjusting plates (13) on the outer side walls of the housing (1).

4. The device for removing the tiny light impurities in the papermaking production according to the claim 1, characterized in that a liquid level adjusting plate (16) is arranged in the five-section chute (8) in a way that the liquid level adjusting plate can slide up and down.

5. The device for removing the tiny light impurities in the papermaking production according to claim 4, characterized in that vertical sliding grooves (17) are oppositely formed in the left inner wall and the right inner wall of the five-section chute (8), two ends of the liquid level adjusting plate (16) are respectively slidably arranged in the two sliding grooves (17), and adjusting screws (18) used for fixing the liquid level adjusting plate (16) are arranged on the sliding grooves (17).

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