CN210684305U

CN210684305U - Improve equipment of papermaking plain boiled water cleanliness factor

Info

Publication number: CN210684305U
Application number: CN201921226669.7U
Authority: CN
Inventors: 琚峰; 余忠华; 俞银良; 骆志峰; 陈其春
Original assignee: Zhejiang Lin'an Jinzhou Paper Co Ltd
Current assignee: Zhejiang Lin'an Jinzhou Paper Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-06-05
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to the technical field of papermaking equipment, in particular to equipment for improving the cleanliness of papermaking white water, which comprises a water distribution box, a vibrating screen and a filter box; the inner cavity of the water diversion tank is divided into a sedimentation tank and a white water outlet tank by a partition plate, the height of the partition plate is lower than the height of the tank wall of the water diversion tank, the bottom of the sedimentation tank is connected with a first sewage discharge pipe and a first sewage discharge valve, and the bottom of the white water outlet tank is connected with a water return pipe and a water return valve; four corners of the vibrating screen are suspended above the settling tank through cantilevers, and a vibrating motor is installed on the side surface of the vibrating screen; the filter box is fixed at the top of the water distribution box through a support and is higher than the vibrating screen, a filter screen is installed in the filter box, one side of the filter screen is an impurity groove, the other side of the filter screen is a primary filtering water outlet groove, a water inlet pipe of white water stretches to the upper side of the impurity groove, the bottom of the impurity groove is connected with a second blow-off pipe and a second blow-off valve, the bottom or the side of the primary filtering water outlet groove is connected with a primary filtering water outlet pipe, and an outlet of the primary filtering water outlet pipe stretches to the upper side of.

Description

Improve equipment of papermaking plain boiled water cleanliness factor

Technical Field

The utility model belongs to the technical field of papermaking equipment technique and specifically relates to an improve equipment of papermaking plain boiled water cleanliness factor.

Background

The white water is the waste water of paper making section, which comes from the paper making process in paper making workshop. The water amount of white water in the paper making process is larger, and almost all paper making workshops adopt a partial or full closed system to reduce the water consumption of paper making, improve the reuse rate of the white water and reduce the discharge of redundant white water.

In the recycling process, the white water contains solid impurities such as silt, fine fibers, fillers, coatings and dissolved wood components, and is usually suspended in water in the form of flocculate, and if the white water is directly recycled, the quality of paper is affected, the impurities need to be removed, and the white water can be recycled after the cleanliness of the white water is improved.

Disclosure of Invention

The utility model aims at overcoming not enough among the above-mentioned background art, provide an improve equipment of papermaking plain boiled water cleanliness factor, can filter the solid-state impurity in the plain boiled water, still have simple structure, convenient to use's technical characterstic.

The technical purpose of the utility model is realized like this:

an apparatus for improving the cleanliness of white water in papermaking comprises a water dividing box with an upward opening, a vibrating screen and a filtering box;

the inner cavity of the water diversion tank is divided into a sedimentation tank and a white water outlet tank by a partition plate, the height of the partition plate is lower than the height of the tank wall of the water diversion tank, the bottom of the sedimentation tank is connected with a first sewage discharge pipe and a first sewage discharge valve, and the bottom of the white water outlet tank is connected with a water return pipe and a water return valve;

four corners of the vibrating screen are suspended above the settling tank through cantilevers, and a vibrating motor is installed on the side surface of the vibrating screen;

the filter box is fixed at the top of the water distribution box through a support and is higher than the vibrating screen, a filter screen is installed in the filter box, one side of the filter screen is an impurity groove, the other side of the filter screen is a primary filtering water outlet groove, a water inlet pipe of white water stretches to the upper side of the impurity groove, the bottom of the impurity groove is connected with a second blow-off pipe and a second blow-off valve, the bottom or the side of the primary filtering water outlet groove is connected with a primary filtering water outlet pipe, and an outlet of the primary filtering water outlet pipe stretches to the upper side of.

Further, the vibrating screen comprises a frame, a screen installed at the bottom of the frame and cross rods extending from four corners of the frame in a hanging manner; a vertically arranged screw is fixed on each cantilever, and the lower end of the screw is suspended with a corresponding cross rod through a suspension belt, so that the holding frame and the screen are suspended above the settling tank.

The utility model has the advantages that: the utility model discloses a rose box carries out prefilter to impurity, and the rethread shale shaker carries out the secondary filter, then deposits in the precipitation tank of knockout drum case, and the plain boiled water just follows a basin recycle at last, and the plain boiled water cleanliness factor after so handling is higher, can satisfy the production requirement, overall structure is simple, convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings.

As shown in fig. 1, an apparatus for improving the cleanliness of paper making white water includes an upwardly open knockout box 24, an upwardly open vibrating screen, and an upwardly open filter box 20.

The distribution box 24 is arranged horizontally by means of the support legs 1. The inner cavity of the water diversion box 24 is divided into a settling tank 7 and a white water outlet tank 23 by a clapboard 6. The height of the partition plate 6 is lower than that of the water dividing tank 24, so that the white water on the upper layer of the precipitation tank 7 can turn over the top of the partition plate 6 to enter the white water outlet tank 23, the bottom of the precipitation tank 7 is connected with the first drain pipe 3 and the first drain valve 2, and the bottom of the white water outlet tank 23 is connected with the water return pipe 4 and the water return valve 5.

Four corners of the vibrating screen are suspended above the settling tank 7 through cantilevers 12, and a vibrating motor 8 is installed on the side surface of the vibrating screen. The vibrating screen comprises a frame 9, a screen 14 arranged at the bottom of the frame 9 and cross rods 25 which are hung from four corners of the frame 9; a vertically arranged screw 11 is fixed to each cantilever 12, the lower end of the screw 11 being suspended from a corresponding cross bar 25 by suspension straps 10, thereby keeping the frame 9 and the screen 14 suspended above the settling tank 7.

The filter box 20 is fixed at the top of the water distribution box 24 through the support 15 and is higher than the vibrating screen, a filter screen 16 is installed in the filter box 20, one side of the filter screen 16 is an impurity groove 18, the other side is a primary filtering water outlet groove 17, a water inlet pipe 19 of white water overhangs the top of the impurity groove 18, the bottom of the impurity groove 18 is connected with a second blow-off pipe 22 and a second blow-off valve 21, the bottom or the side of the primary filtering water outlet groove 17 is connected with a primary filtering water outlet pipe 13, and an outlet of the primary filtering water outlet pipe 13 overhangs the top of the vibrating screen.

The utility model discloses a theory of operation is: white water gets into rose box 20, filter screen 16 carries out prefiltering back, impurity such as big flocculation and silt particle is stayed in impurity groove 18, open second blowoff valve 21 and discharge when needing to clear up, prefiltering's white water is from prefiltering water outlet tank 17, prefiltering outlet pipe 13 flows on the shale shaker, the shale shaker lasts the vibration under vibrating motor 8's effect, screen 14's mesh filter screen 16, filter impurity once more, white water drops precipitation tank 7 from screen 14, impurity further precipitates, impurity after the sediment can carry out the blowdown through opening first blowoff valve 2, the white water on precipitation tank 7 upper strata overturns baffle 6 top, get into in white water outlet tank 23, the cleanliness factor of white water is higher this moment, can open return valve 5, from return pipe 4 recycle.

The above description is only a preferred embodiment of the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an improve equipment of papermaking plain boiled water cleanliness factor which characterized in that: comprises a water distribution box (24) with an upward opening, a vibrating screen and a filter box (20);

the inner cavity of the water diversion box (24) is divided into a settling tank (7) and a white water outlet tank (23) through a partition plate (6), the height of the partition plate (6) is lower than the height of the box wall of the water diversion box (24), the bottom of the settling tank (7) is connected with a first drain pipe (3) and a first drain valve (2), and the bottom of the white water outlet tank (23) is connected with a water return pipe (4) and a water return valve (5);

four corners of the vibrating screen are suspended above the settling tank (7) through cantilevers (12), and a vibrating motor (8) is installed on the side surface of the vibrating screen;

the top at knockout drum (24) is fixed and is higher than the shale shaker in rose box (20) through support (15), install a filter screen (16) in rose box (20), one side of filter screen (16) is impurity groove (18), the opposite side is for just straining out basin (17), inlet tube (19) overhang of plain boiled water reaches the top of impurity groove (18), the bottom of impurity groove (18) is connected with second blow off pipe (22) and second blowoff valve (21), the bottom or the side of just straining out basin (17) are connected with just strain outlet pipe (13), the export overhang of just straining outlet pipe (13) reaches the top of shale shaker.

2. An apparatus for improving the cleanliness of papermaking white water according to claim 1, wherein: the vibrating screen comprises a frame (9), a screen (14) arranged at the bottom of the frame (9) and cross rods (25) which are hung and extended from four corners of the frame (9); a vertically arranged screw (11) is fixed on each cantilever (12), and the lower end of each screw (11) is suspended with a corresponding cross rod (25) through a suspension band (10), so that a frame (9) and a screen (14) are suspended above the settling tank (7).