CN112591924A

CN112591924A - Papermaking white water air-flotation water outlet post-filtering device

Info

Publication number: CN112591924A
Application number: CN202110232336.0A
Authority: CN
Inventors: 李长增; 李波
Original assignee: Laiyang Yintong Paper Co ltd
Current assignee: Laiyang Yintong Paper Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-04-02
Anticipated expiration: 2041-03-03
Also published as: CN112591924B

Abstract

The invention discloses a post-filtration device for air floatation water outlet of papermaking white water, and relates to the technical field of filtration devices. The invention comprises a plurality of support legs, a box body and a box cover, wherein the box cover is connected with the box body in a buckling mode, the upper ends of the support legs are fixedly connected with the lower surface of the box body, an adsorption bin is arranged in the box body, and a plurality of layers of activated carbon plates are arranged in the adsorption bin. According to the invention, by using the cam, the roller, the cylinder body, the return pipe, the piston, the spring and the one-way valve, water in the box body continuously enters the cylinder body and then enters the adsorption bin through the return pipe, and the papermaking white water passing through the separation cylinder and the adsorption bin is circularly filtered for multiple times, so that the filtering effect is improved; according to the invention, the activated carbon plate, the separation screen and the separation rod are used, so that after entering the device, the papermaking white water firstly absorbs most of impurities through the activated carbon plate, then enters the separation screen for separation, and finally is filtered for the third time when passing through the separation rod, and the water purification effect is improved.

Description

Papermaking white water air-flotation water outlet post-filtering device

Technical Field

The invention belongs to the technical field of filtering devices, and particularly relates to a post-filtering device for air floatation water outlet of papermaking white water.

Background

Papermaking is a process of making paper from paper pulp. In the modern paper industry, pulp suitable for paper quality is continuously diluted with water to a certain concentration, and then preliminarily dewatered in the wire section of the paper machine to form a wet paper sheet, which is then pressed, dewatered and dried to produce paper. The water after paper making is generally used by taking out scum through an air flotation machine and then reflowing.

However, the floating slag removing capability of the air flotation machine is also reduced after the air flotation machine processes the paper making white water for a period of time, the machine is stopped for cleaning, which is not only troublesome, but also affects the working efficiency, so the paper making white water after air flotation needs to be filtered again.

Disclosure of Invention

The invention aims to provide a post-filtration device for papermaking white water after air floatation, which solves the problems that the existing air floatation machine can reduce the scum removing capability after treating papermaking white water for a period of time, the machine halt cleaning is not only troublesome, but also influences the working efficiency, and therefore the papermaking white water after air floatation needs to be re-filtered.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a papermaking white water air-flotation water outlet post-filtration device, which comprises a plurality of support legs, a box body and a box cover, wherein the box cover is connected with the box body in a buckling manner, the upper ends of the support legs are fixedly connected with the lower surface of the box body, an adsorption bin is arranged in the box body, a plurality of layers of activated carbon plates are arranged in the adsorption bin, the adsorption bin is also communicated with a water inlet pipe and a water outlet pipe, the water inlet pipe extends to the outside of the box body, a motor is also arranged on the lower surface of the box body, a motor shaft of the motor extends to the inside of the box body, a separation barrel and a separation screen are fixedly connected to the peripheral side surface of the motor shaft, the separation screen is arranged on the bottom surface of the; in the structure, the water in the papermaking white water can enter the adsorption bin through the water inlet pipe after passing through the air flotation machine, then the residual floccules in the water are adsorbed in the adsorption bin, then the water body enters the separation screen through the water discharge pipe, the motor can drive the separation screen to rotate at the moment, the water body enters the separation cylinder under the centrifugal action, and a small amount of floccules are remained in the separation screen and finally discharged from the separation holes.

The box body is internally provided with a cylinder body, a return pipe is communicated between the cylinder body and the adsorption bin and is arranged outside the box body, a through hole is formed in the surface of the cylinder body, the cylinder body is also connected with a piston in a sliding mode, a spring is fixedly connected between the piston and the cylinder body, one surface of the piston is fixedly connected with a connecting block, the connecting block is rotatably connected with a roller, a cam is arranged on one side of the roller, the cam is arranged on the peripheral side face of a motor shaft, and the roller is tangent to the cam; in the structure, the motor drives the cam to rotate during operation, then the cam extrudes the roller, the roller drives the piston to change the internal pressure of the cylinder body through the connecting block, and finally, the water in the box body continuously enters the cylinder body in the process of rebounding through the spring, then enters the adsorption bin through the return pipe, and the white water circulating filtration of papermaking is realized, and the filtering effect is improved.

The box body is prevented from being fixedly connected with a cylinder, the cylinder is matched with a separating rod in a rotating mode, a knob is fixedly connected to the upper end of the separating rod and is located on the upper surface of the box body, a channel is formed in the separating rod, a drain hole is formed in the wall of the cylinder, a water storage tank is fixedly connected to the lower surface of the box body, and the water storage tank is communicated with the channel; in the structure, the drain hole can be communicated with the channel by rotating the separating rod, so that drainage is facilitated.

Preferably, the surface of the activated carbon plate is provided with a plurality of round holes, so that water can conveniently pass through the activated carbon plate.

Preferably, the inner wall of the separation screen is fixedly connected with a spiral blade, so that the papermaking white water spirally descends along the spiral blade, and the separation effect is improved.

Preferably, check valves are installed at the joints of the through hole and the return pipe with the cylinder body, so that the water body is prevented from flowing back after entering the cylinder body.

Preferably, the upper end of the motor shaft is rotatably connected with the box cover, so that the motor shaft is stable in rotation.

Preferably, the water storage tank is communicated with a water pumping pipe, so that water in the water storage tank can be pumped out conveniently.

Preferably, a filter screen is installed in the passage, and the filter screen performs final filtration while the paper white water passes through the passage.

The invention has the following beneficial effects:

1. according to the invention, by using the cam, the roller, the cylinder body, the return pipe, the piston, the spring and the one-way valve, when the motor works, the cam is driven to rotate, then the cam extrudes the roller, the roller drives the piston to change the internal pressure of the cylinder body through the connecting block, and finally the spring rebounds, in the process, water in the box body continuously enters the cylinder body and then enters the adsorption bin through the return pipe, so that papermaking white water passing through the separation cylinder and the adsorption bin is circularly filtered for multiple times, and the filtering effect is improved;

2. according to the invention, the activated carbon plate, the separation screen and the separation rod are used, so that after entering the device, the papermaking white water firstly absorbs most of impurities through the activated carbon plate, then enters the separation screen for separation, and finally is filtered for the third time when passing through the separation rod, and the water purification effect is improved.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a three-dimensional structure of a post-filtration device for papermaking white water air-flotation water outlet according to the invention;

FIG. 2 is a right side view of a post-filtration device for papermaking white water air-flotation effluent according to the present invention;

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is an enlarged view of area A of FIG. 3;

FIG. 5 is an enlarged view of area B of FIG. 3;

FIG. 6 is a three-dimensional structure diagram of a separating screen of a filtering device after the papermaking white water air flotation water outlet of the invention.

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

1-supporting leg, 2-box body, 201-water inlet pipe, 202-return pipe, 3-box cover, 4-knob, 5-water storage tank, 501-water pumping pipe, 6-separation rod, 601-channel, 7-cylinder, 701-water discharging hole, 8-filter screen, 9-motor, 901-motor shaft, 10-cam, 11-separation cylinder, 1101-separation hole, 12-separation screen, 1201-spiral blade, 13-adsorption bin, 14-activated carbon plate, 15-water discharging pipe, 16-roller, 17-connecting block, 18-piston, 19-cylinder body, 20-one-way valve, 21-through hole and 22-spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper," "middle," "outer," "inner," "around," and the positional relationships are used merely for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Referring to fig. 1-6, the invention relates to a post-filtration device for papermaking white water air-flotation effluent, which comprises a plurality of supporting legs 1, a box body 2 and a box cover 3, wherein the box cover 3 is connected with the box body 2 in a buckling manner, the upper ends of the supporting legs 1 are fixedly connected with the lower surface of the box body 2, an adsorption bin 13 is installed inside the box body 2, a plurality of layers of activated carbon plates 14 are arranged in the adsorption bin 13, the adsorption bin 13 is also communicated with a water inlet pipe 201 and a water outlet pipe 15, the water inlet pipe 201 extends to the outside of the box body 2, a motor 9 is also installed on the lower surface of the box body 2, a motor shaft 901 of the motor 9 extends to the inside of the box body 2, a separation cylinder 11 and a separation screen 12 are fixedly connected to the peripheral side surface of the motor shaft 901, the separation screen 12 is installed; in the above-mentioned structure, can get into the absorption storehouse 13 through inlet tube 201 after the air supporting machine when the paper making plain boiled water, then adsorb the remaining flocculus of storehouse 13 absorption aquatic, then the water passes through in drain pipe 15 gets into separation screen 12, and motor 9 can drive separation screen 12 and rotate this moment, and the water gets into knockout drum 11 under centrifugal action, and a small amount of flocculus is stayed in separation screen 12 simultaneously, discharges from separation hole 1101 at last.

A cylinder body 19 is further arranged inside the box body 2, a return pipe 202 is communicated between the cylinder body 19 and the adsorption bin 13, the return pipe 202 is installed outside the box body 2, a through hole 21 is formed in the surface of the cylinder body 19, the cylinder body 19 is further connected with a piston 18 in a sliding mode, a spring 22 is fixedly connected between the piston 18 and the cylinder body 19, one surface of the piston 18 is fixedly connected with a connecting block 17, the connecting block 17 is rotatably connected with a roller 16, a cam 10 is arranged on one side of the roller 16, the cam 10 is installed on the peripheral side face of a motor; in the structure, the motor 9 drives the cam 10 to rotate during operation, then the cam 10 extrudes the roller 16, the roller 16 drives the piston 18 through the connecting block 17 to change the internal pressure of the cylinder 19, and finally, the spring 22 rebounds, in the process, the water in the box body 2 continuously enters the cylinder 19 and then enters the adsorption bin 13 through the return pipe 202, so that the white water for papermaking is circularly filtered, and the filtering effect is improved.

The box body 2 is prevented from being fixedly connected with a cylinder 7, the cylinder 7 is rotationally matched with a separating rod 6, the upper end of the separating rod 6 is fixedly connected with a knob 4, the knob 4 is positioned on the upper surface of the box body 2, a channel 601 is arranged in the separating rod 6, a drain hole 701 is formed in the wall of the cylinder 7, a water storage tank 5 is fixedly connected to the lower surface of the box body 2, and the water storage tank 5 is communicated with the channel 601; in the above configuration, the drain hole 701 can be communicated with the passage 601 by rotating the separation lever 6, thereby facilitating drainage.

Furthermore, a plurality of round holes are formed on the surface of the activated carbon plate 14, so that water can pass through the activated carbon plate conveniently.

Further, the inner wall of the separation screen 12 is fixedly connected with a spiral blade 1201, so that the white water of the papermaking falls along the spiral blade 1201 in a spiral way, and the separation effect is improved.

Furthermore, the through hole 21 and the connection between the return pipe 202 and the cylinder 19 are both provided with a check valve 20 to prevent the water from flowing back after entering the cylinder 19.

Further, the upper end of the motor shaft 901 is rotatably connected to the case cover 3, so that the motor shaft 901 is rotationally stabilized.

Further, the water storage tank 5 is communicated with a water pumping pipe 501, so that water in the water storage tank 5 can be pumped out conveniently.

Further, a screen 8 is installed in the passage 601, and the screen 8 performs final filtration while the paper white water passes through the passage 601.

Referring to fig. 1-6, the present invention is a post-filtration device for air-float effluent of paper-making white water, the output power of the motor 9 used is 100W-3800W, and the using method is as follows:

the method comprises the following steps: when the papermaking white water is subjected to solid-liquid separation by the air flotation machine, enters the adsorption bin 13 through the water inlet pipe 201, the residual floccules in the water are adsorbed by the adsorption bin 13, then the water enters the separation screen 12 through the water discharge pipe 15, the motor 9 drives the separation screen 12 to rotate at the moment, the water enters the separation cylinder 11 under the centrifugal action, a small amount of floccules are remained in the separation screen 12, and finally the water is discharged from the separation holes 1101 and enters the box body 2;

step two: the motor 9 drives the cam 10 to rotate when working, then the cam 10 extrudes the roller 16, the roller 16 drives the piston 18 through the connecting block 17 to periodically change the internal pressure of the cylinder 19, then the spring 22 rebounds, in the process, the water in the box body 2 continuously enters the cylinder 19 and then returns to the adsorption bin 13 through the return pipe 202, and the filtering process is repeated;

step three: the separation rod 6 is rotated by the knob 4 to communicate the drain hole 701 with the channel 601, then the water in the tank body 2 enters the water storage tank 5 through the channel 601 and the filter screen 8, and finally the water in the water storage tank 5 is drained through the water pumping pipe 501.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a papermaking plain boiled water air supporting play water back filter equipment, includes a plurality of landing legs (1), box (2) and case lid (3), case lid (3) are connected with box (2) buckle, landing leg (1) upper end and box (2) lower fixed surface are connected, its characterized in that:

the adsorption device is characterized in that an adsorption bin (13) is installed inside the box body (2), a plurality of layers of activated carbon plates (14) are arranged in the adsorption bin (13), the adsorption bin (13) is further communicated with a water inlet pipe (201) and a water outlet pipe (15), the water inlet pipe (201) extends to the outside of the box body (2), a motor (9) is further installed on the lower surface of the box body (2), a motor shaft (901) of the motor (9) extends to the inside of the box body (2), a separation cylinder (11) and a separation screen (12) are fixedly connected to the peripheral side surface of the motor shaft (901), the separation screen (12) is installed on the bottom surface of the separation cylinder (11), a plurality of separation holes (1101) are further formed in the bottom surface of the separation cylinder (11), and the separation cylinder (11) and the separation screen (12;

a cylinder body (19) is further arranged inside the box body (2), a return pipe (202) is communicated between the cylinder body (19) and the adsorption bin (13), the return pipe (202) is installed outside the box body (2), a through hole (21) is formed in the surface of the cylinder body (19), a piston (18) is further connected to the cylinder body (19) in a sliding mode, a spring (22) is fixedly connected between the piston (18) and the cylinder body (19), a connecting block (17) is fixedly connected to one surface of the piston (18), an idler wheel (16) is rotatably connected to the connecting block (17), a cam (10) is arranged on one side of the idler wheel (16), the cam (10) is installed on the circumferential side face of a motor shaft (901), and the idler wheel (16) is tangent to the;

fixedly connected with drum (7) is avoided in box (2), drum (7) normal running fit has separator bar (6), separator bar (6) upper end fixedly connected with knob (4), knob (4) are located box (2) upper surface, be provided with passageway (601) in separator bar (6), wash port (701) have been seted up to the section of thick bamboo wall of drum (7), box (2) lower fixed surface is connected with water storage box (5), water storage box (5) and passageway (601) intercommunication.

2. The post-filtration device for air-flotation effluent of papermaking white water as claimed in claim 1, wherein the surface of the activated carbon plate (14) is provided with a plurality of round holes.

3. The post-filtration device for air flotation effluent of papermaking white water as claimed in claim 1, wherein the inner wall of the separation screen (12) is fixedly connected with a spiral blade (1201).

4. The post-filtration device for air-floated effluent of papermaking white water as claimed in claim 1, wherein the connection between the cylinder (19) and the return pipe (202) and the through hole (21) are provided with one-way valves (20).

5. The post-filtration device for air flotation effluent of paper making white water as claimed in claim 1, characterized in that the upper end of the motor shaft (901) is rotatably connected with the tank cover (3).

6. The post-filtration device for air flotation effluent of papermaking white water as claimed in claim 1, wherein the water storage tank (5) is communicated with a water pumping pipe (501).

7. A post-filtration device for air-floated discharge of paper making white water according to claim 1, characterized in that a filter screen (8) is installed in the channel (601).