CN212609890U

CN212609890U - Sewage processor

Info

Publication number: CN212609890U
Application number: CN202020947053.5U
Authority: CN
Inventors: 武钟淇
Original assignee: Xi'an Xingsheng Papermaking Stainless Steel Mesh Co ltd
Current assignee: Xi'an Xingsheng Papermaking Stainless Steel Mesh Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-02-26
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a sewage processor, which comprises a box body, wherein the box body comprises a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate; the box body is provided with a first clapboard which is used for connecting the left side plate and the right side plate, and the first clapboard divides the interior of the box body into a coarse filtration cabin positioned at the rear side and an ultrafiltration cabin positioned at the front side; an air-floating type filtering device is arranged in the coarse filtering bin, and a white water inlet is formed in the bottom of the coarse filtering bin; a filter disc type filtering device is arranged in the ultrafiltration cabin, a clear liquid outlet is arranged at the bottom of the filter disc type filtering device, and a middle liquid through hole is formed in the first partition plate. The utility model discloses sewage treatment can carry out colating and ultrafiltration to plain boiled water, and the clear solution that the direct production meets the requirements has that occupation space is little, advantage that water treatment efficiency is high.

Description

Sewage processor

Technical Field

The utility model relates to a sewage treatment device field, concretely relates to sewage treatment machine.

Background

White water generated in the traditional papermaking process contains a large amount of fine fibers and chemical residues, enterprises spend a large amount of funds on discharging industrial sewage, and slurry recovery and sewage treatment are huge in material resources and financial resources. The current sewage treatment process of paper-making enterprises is as follows: filtering off some large suspended solids by rough filtration of the white water, for example, floating the white water by an air floating filter to separate solid from liquid of the white water, and cleaning the suspended solids floating on the upper layer; and (4) the liquid after rough filtration passes through an ultrafiltration device to remove fine solid fiber matters and gas in the solid again, so as to obtain clear liquid meeting the requirements. In the prior art, the air-floating type filtering device and the ultrafiltration device are arranged independently, so that the occupied factory space is large, and in addition, a plurality of intermediate procedures are increased and decreased frequently when intermediate liquid after rough filtration is moved to the ultrafiltration device, so that manpower and material resources are increased, and the water treatment cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the main object of the utility model is to provide a sewage treatment machine, this sewage treatment machine gas collection floating filter equipment and filter disc formula filter equipment in an organic whole, can once only carry out colating, ultrafiltration to the white water, direct production meets the requirements clear solution.

In order to achieve the above purpose, the present invention adopts the following technical solution.

A sewage processor comprises a box body, wherein the box body comprises a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate; the box body is provided with a first clapboard which is used for connecting the left side plate and the right side plate, and the first clapboard divides the interior of the box body into a coarse filtration cabin positioned at the rear side and an ultrafiltration cabin positioned at the front side; an air-floating type filtering device is arranged in the coarse filtering bin, and a white water inlet is formed in the bottom of the coarse filtering bin; a filter disc type filtering device is arranged in the ultrafiltration cabin, a clear liquid outlet is arranged at the bottom of the filter disc type filtering device, and a middle liquid through hole is formed in the first partition plate.

Further, a filter disc type filter device is positioned at the lower side of the middle liquid passing hole.

Furthermore, the included angle between the first partition plate and the bottom plate in the coarse filtration bin is larger than 90 degrees.

Furthermore, the air-floating type filtering device comprises a filtering wheel, a wheel shaft of the filtering wheel is provided with a spoke, a cylindrical filter screen is arranged on the spoke, the wheel shaft extends out of the side wall of the box body and is connected with a filtering wheel motor, and the filtering wheel motor drives the filtering wheel to rotate anticlockwise; the front of the filter wheel is provided with a scraper which inclines upwards and leans against the filter screen, a fiber receiving tank is arranged below the lower end of the scraper, the lower surface of the fiber receiving tank is connected with a first partition plate, and a middle liquid passing hole is positioned at the lower side of the filter wheel.

Furthermore, a second partition plate is arranged below the filter wheel and comprises a horizontal section and an arc-shaped section, the horizontal section horizontally extends to the lowest point of the filter wheel from the first partition plate to the rear, and the arc-shaped section horizontally extends to the position which is positioned at the same horizontal plane with the central axis of the filter wheel from the lowest point of the filter wheel and surrounds the filter wheel in the anticlockwise direction; the end part of the arc-shaped section is provided with a rubber sealing plate which is propped against the outer surface of the filter wheel, and the middle liquid passing hole is positioned on the upper side of the horizontal section of the second clapboard.

Further, a water mixing bin is arranged at the bottom of the coarse filtration bin, a mixed water outlet is formed in the root of the water mixing bin, a dissolved air water pipe is arranged in the water mixing bin, a dissolved air water releaser is arranged on the dissolved air water pipe, a white water inlet is arranged close to the dissolved air water pipe, and the dissolved air water pipe extends out of the box body and is connected with a dissolved air tank; a normal-pressure stripping water pipe is arranged above the scraper, and a fan-shaped wide-angle nozzle is arranged on the normal-pressure stripping water pipe; and a high-pressure cleaning water pipe is arranged below the scraper, and a plurality of needle-shaped nozzles facing the filter wheel are arranged on the high-pressure cleaning water pipe.

Furthermore, filter disc formula filter equipment contains the drain pipe that sets up in the ultrafiltration storehouse bottom, is provided with the fan-shaped filter disc of parallel of each other on the drain pipe, and the filter disc is inside to be linked together with the drain pipe, drain pipe and clear water export intercommunication.

Furthermore, the filter disc comprises a bottom net and a surface net, wherein a hollow fiber membrane filter layer is arranged on the outer sides of the bottom net and the surface net, and a layer of fixing net is further arranged outside the hollow fiber membrane filter layer.

Further, a stirrer is arranged at the bottom of the ultrafiltration bin; the stirrer comprises a stirring shaft and blades arranged on the stirring shaft, and the stirring shaft extends out of the box body and is connected with a stirring motor.

The utility model discloses sewage treatment machine technical scheme can carry out colating and ultrafiltration to the white water for prior art's sewage treatment machine, and the direct production meets the requirements the clear solution, and it is little to have occupation space, advantage that water treatment efficiency is high.

The utility model discloses the plain boiled water treatment process has been simplified to the sewage treatment method, has sewage treatment efficiency height, the high advantage of sewage treatment quality.

Drawings

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

FIG. 1 is a schematic perspective view of an embodiment of a sewage treatment machine of the present invention;

FIG. 2 is a longitudinal sectional view of an embodiment of the sewage treatment machine of the present invention;

in the above figures: 1, a bottom plate; 2, a front side plate; 3, a rear side plate; 4, a left side plate; 5, a right side plate; 6 a first separator;

7, an air floating type filtering device; 701 wheel shaft; 702 spokes; 703 a filter screen; 704 a squeegee; 705 a fiber receiving tank; 706 a second separator; 707 stripping water pipe at normal pressure; 708 cleaning the water pipe; 709 rubber sealing plate;

8 a white water inlet;

9 a filter disc type filter device; 901 a drain pipe; 902 sector filter discs;

10 clear liquid outlet; 11, passing the middle liquid through a hole; 12 dissolved gas water releaser; 13 a stirrer; 14 a stirring motor; 15 a water mixing bin; 16 mixed water outlet.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of other ways than those described herein, and those skilled in the art will be able to make similar generalizations without departing from the spirit of the invention. The invention is therefore not limited to the specific embodiments disclosed below.

Referring to fig. 1 and 2, a sewage treatment machine includes a housing including a bottom plate 1, a front side plate 2, a rear side plate 3, a left side plate 4 and a right side plate 5; the box body is provided with a first partition plate 6 which is connected with a left side plate 4 and a right side plate 5, and the first partition plate 6 divides the interior of the box body into a coarse filtration cabin positioned at the rear side and an ultrafiltration cabin positioned at the front side; an air-floating type filtering device 7 is arranged in the coarse filtering bin, and a white water inlet 8 is arranged at the bottom of the coarse filtering bin; a filter disc type filtering device 9 is arranged in the ultrafiltration cabin, a clear liquid outlet 10 is arranged at the bottom of the filter disc type filtering device 9, and a middle liquid hole 11 is arranged on the first partition plate 6.

In the above embodiment, the first partition plate 6 is disposed in the middle of the box body, the air-floating type filtering device 7 is disposed on the rear side of the first partition plate 6, and the filter disc type filtering device 9 is disposed on the front side of the first partition plate 6. White water enters the rough filtration bin from a white water inlet 8, air floatation is carried out in the rough filtration bin to separate solid from liquid, upper-layer fiber matters are removed by an air floatation type filtration device 7, lower-layer intermediate liquid enters the ultrafiltration bin from intermediate liquid on the first partition plate 6, filtration is carried out again by a filter disc type filtration device 9 to remove smaller suspended matters in the intermediate liquid or gas in water, clear liquid is obtained, and the clear liquid is discharged from a liquid outlet. The sewage treatment machine of this embodiment can accomplish the rough filtration, ultrafiltration once only to white water, obtains the clear solution. This sewage treatment machine practices thrift equipment, practices thrift the factory building space.

Further, the filter disc type filter device 9 is positioned at the lower side of the middle liquid passing hole 11.

In the above embodiment, the filter disk type filter unit 9 is disposed below the discharge port of the liquid after the treatment by the air floating type filter unit 7, i.e., below the outlet of the intermediate liquid, so that the intermediate liquid can directly flow into the filter disk type filter unit 9 by gravity alone. On the other hand, the whole height of the air floating type filtering device 7 is higher than that of the filter disc type filtering device 9, so that the air floating area of the air floating type filtering device 7 is enlarged, and the solid-liquid separation of white water is facilitated.

Furthermore, the included angle between the first partition plate 6 and the bottom plate 1 in the rough filtration bin is greater than 90 degrees. In the above embodiment, the first partition plate 6 is inclined forward, the angle between the first partition plate 6 and the bottom plate 1 in the rough filtration bin is larger than 90 degrees, so that the rough filtration bin forms a trapezoid with a large upper section and a small lower section, and the speed of the water body in the air floatation zone is lower and lower in the rising process, thereby being more beneficial to the air floatation effect.

Further, the air-floating filter device 7 comprises a filter wheel, a spoke 702 is arranged on a wheel shaft 701 of the filter wheel, a cylindrical filter screen 703 is arranged on the spoke 702, a filter wheel motor is connected with the side wall of the box body, which extends out of the wheel shaft 701, and the filter wheel motor drives the filter wheel to rotate anticlockwise; a scraping plate 704 is arranged in front of the filter wheel, the scraping plate 704 is upwards inclined to abut against the filter screen 703, a fiber receiving groove 705 is arranged below the lower end of the scraping plate 704, the lower surface of the fiber receiving groove 705 is connected with the first partition plate 6, and the middle liquid passing hole 11 is positioned on the lower side of the filter wheel.

In the above embodiment, specifically, the air-floating filter 7 uses filter wheels to remove suspended matters in the water body after air-floating. After the white water air flotation in the coarse filtration bin, the water body can be layered, the fiber can float on the upper surface of the water body, the filter wheel rotating anticlockwise brings the fiber onto the filter wheel, when the filter wheel rotates to the scraper 704, the fiber is scraped by the scraper 704, falls into the fiber receiving groove 705, and can be cleaned regularly or sucked away through the pump body. While the intermediate liquid under the fiber material flows into the ultrafiltration cabin through the intermediate liquid hole 11.

Further, a second partition plate 706 is arranged below the filter wheel, the second partition plate 706 comprises a horizontal section and an arc-shaped section, the horizontal section horizontally extends from the first partition plate 6 to the rear part to the lowest point of the filter wheel, the arc-shaped section horizontally extends from the lowest point of the filter wheel to the position which is on the same horizontal plane with the central axis of the filter wheel in the counterclockwise direction; the end part of the arc-shaped section is provided with a rubber sealing plate 709 which is propped against the outer surface of the filter wheel, and the middle liquid passing hole 11 is positioned on the upper side of the horizontal section of the second partition plate 706.

In the above embodiment, in order to prevent the water body after air floatation from directly entering the area between the front of the filter wheel and the first partition plate 6 without being filtered by the filter wheel, the second partition plate 706 is disposed below the filter wheel, and the second partition plate 706 includes a horizontal section and an arc-shaped section. First baffle 6 is connected to the one end of horizontal segment, and the other end is connected with the one end of segmental arc, and the other end of segmental arc is around straining the anticlockwise extension of wheel and strain the wheel center pin and be in on the same horizontal plane. The end of the arcuate segment is provided with a rubber seal plate 709 which abuts against the outer surface of the filter wheel to prevent unfiltered water from flowing into the underside of the filter wheel. Preferably, the middle liquid passing hole is arranged at the upper side of the horizontal section of the second partition 706, so that all water entering the ultrafiltration cabin can be filtered by the filter wheel.

Further, a water mixing bin 15 is arranged at the bottom of the coarse filtration bin, a mixed water outlet 16 is arranged at the root of the water mixing bin 15, a dissolved air water pipe is arranged in the water mixing bin 15, a dissolved air water releaser 12 is arranged on the dissolved air water pipe, the white water inlet 8 is arranged close to the dissolved air water pipe, and the dissolved air water pipe extends out of the box body and is connected with a dissolved air tank; a normal-pressure stripping water pipe 707 is arranged above the scraper 704, and a fan-shaped wide-angle nozzle is arranged on the normal-pressure stripping water pipe 707; a high-pressure cleaning water pipe 708 is arranged below the scraper 704, and a plurality of needle-shaped nozzles facing the filter wheel are arranged on the high-pressure cleaning water pipe 708.

In the above embodiment, specifically, the water mixing bin 15 is disposed at the bottom of the coarse filtration bin, the mixed water outlet 16 is disposed at the root of the water mixing bin 15, the dissolved air water pipe is disposed in the water mixing bin, and the dissolved air water releaser 12 is disposed on the dissolved air water pipe. The water containing dissolved air and the white water are fully mixed in the water mixing bin 15, enter the coarse filtering bin from the mixed water outlet 16, and are subjected to air floatation in the coarse filtering bin, and suspended matters in the white water float above the liquid level.

In the above embodiment, the normal pressure stripping water pipe 707 is provided above the scraper 704 to strip the fiber in advance, so as to facilitate scraping by the scraper 704. The normal pressure stripping water pipe 707 adopts a fan-shaped wide-angle nozzle to cover the whole filter wheel. In order to clean the filter wheel from residual fiber, a high-pressure cleaning water pipe 708 is arranged below the scraper 704, and a plurality of needle-type nozzles facing the filter wheel are arranged on the high-pressure cleaning water pipe 708. The needle type nozzle can secure the pressure of the washing water.

Further, the filter disc type filtering device 9 comprises a drain pipe 901 arranged at the bottom of the ultrafiltration cabin, fan-shaped filter discs 902 parallel to each other are arranged on the drain pipe 901, the inside of the filter discs 902 is communicated with the drain pipe 901, and the drain pipe 901 is communicated with the clean water outlet.

In the above embodiment, preferably, the filter disc type filtering device 9 includes a drain pipe 901 disposed at the bottom of the ultrafiltration chamber, a plurality of parallel fan-shaped filter discs 902 are disposed on the drain pipe 901, the interior of the fan-shaped filter discs 902 is communicated with the drain pipe 901, the intermediate liquid is secondarily filtered by the filter discs 902, and the fine fibrous substances or gas molecules of the intermediate liquid in the intermediate liquid can be filtered, and the clear liquid is discharged from the clear liquid outlet 10.

Further, the filter disc 902 comprises a bottom net and a surface net, the outside of the bottom net and the surface net is provided with a hollow fiber membrane filter layer, and the outside of the hollow fiber membrane filter layer is also provided with a layer of fixing net.

The hollow fiber membrane is a novel material and is made of a polypropylene high polymer material and a polytetrafluoroethylene high polymer material, the membrane is of a hollow structure, and the outer diameter of the membrane is as follows: 350-360 μm, inner diameter of the membrane: 250-260 μm, film wall thickness: 50 μm, pore size of micropores: 0.01-0.2 μm, air permeability: > 7.0X 10-2(cm3/cm2 "S" cmHg), porosity: 45-65 percent. The membrane wall has a micropore structure, the pore diameter is 0.01 x 0.2 mu m, water molecules cannot pass through the micropore, gas molecules can pass through the micropore, the degassing principle is to utilize the diffusion principle to degas the gas in the water body, and the degassing efficiency is as high as 99.99%. Cutting the hollow fiber membrane filaments into 2-3mm long.

Further, in order to improve the filtering speed of the liquid in the ultrafiltration cabin, a stirrer 13 is further arranged at the bottom of the ultrafiltration cabin; the stirrer 13 comprises a stirring shaft and blades arranged on the stirring shaft, and the stirring shaft extends out of the box body and is connected with a stirring motor 14.

The sewage treatment method comprises the following steps:

step one, starting a sewage treatment machine, and introducing white water into the coarse filtration bin through a white water inlet 8;

step two, controlling the water inflow of the white water to enable the liquid level in the coarse filtration bin to reach the highest liquid level line of the coarse filtration bin;

separating the white water into fiber and intermediate liquid by the air-floating filter device 7, and allowing the intermediate liquid to enter the ultrafiltration bin through an intermediate liquid hole 11;

filtering fine suspended matters and gas molecules in the intermediate liquid by using a filter disc type filtering device 9 to form clear liquid;

and step five, discharging the clear liquid through a clear liquid outlet 10.

Although the invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that certain changes and modifications can be made therein without departing from the scope of the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A sewage treatment machine is characterized by comprising a box body, wherein the box body comprises a bottom plate (1), a front side plate (2), a rear side plate (3), a left side plate (4) and a right side plate (5); the box body is provided with a first partition plate (6) which is connected with the left side plate (4) and the right side plate (5), and the first partition plate (6) divides the interior of the box body into a coarse filtration cabin positioned at the rear side and an ultra filtration cabin positioned at the front side; an air-floating type filtering device (7) is arranged in the coarse filtering bin, and a white water inlet (8) is arranged at the bottom of the coarse filtering bin; the ultrafiltration cabin is internally provided with a filter disc type filtering device (9), the bottom of the filter disc type filtering device (9) is provided with a clear liquid outlet (10), and the first partition plate (6) is provided with a middle liquid passing hole (11).

2. Sewage treatment machine according to claim 1, characterised in that said filter disc type filtering means (9) are located on the lower side of the intermediate liquid passage hole (11).

3. Sewage treatment machine according to claim 1, characterised in that the first baffle (6) is at an angle greater than 90 ° to the floor (1) in the coarse filtration silo.

4. The sewage treatment machine according to claim 1, wherein the air-floating type filtering device (7) comprises a filter wheel, spokes (702) are arranged on a wheel shaft (701) of the filter wheel, a cylindrical filter screen (703) is arranged on the spokes (702), a filter wheel motor is connected to the wheel shaft (701) extending out of the side wall of the box body, and the filter wheel motor drives the filter wheel to rotate anticlockwise; a scraper (704) is arranged in front of the filter wheel, the scraper (704) inclines upwards to abut against the filter screen (703), a fiber receiving groove (705) is arranged below the lower end of the scraper (704), the lower surface of the fiber receiving groove (705) is connected with a first partition plate (6), and the middle liquid passing hole (11) is positioned on the lower side of the filter wheel.

5. The sewage processor of claim 4, wherein a second partition plate (706) is arranged below the filter wheel, the second partition plate (706) comprises a horizontal section and an arc-shaped section, the horizontal section horizontally extends from the first partition plate (6) to the rear direction to the lowest point of the filter wheel, the arc-shaped section horizontally extends from the lowest point of the filter wheel to the position which is positioned at the same level with the central axis of the filter wheel in the anticlockwise direction around the filter wheel; the end part of the arc-shaped section is provided with a rubber sealing plate (709) which is propped against the outer surface of the filter wheel, and the middle liquid passing hole (11) is positioned on the upper side of the horizontal section of the second partition plate (706).

6. The sewage treatment machine according to claim 4, wherein a water mixing bin (15) is arranged at the bottom of the coarse filtration bin, a mixed water outlet (16) is arranged at the root of the water mixing bin (15), a dissolved air water pipe is arranged in the water mixing bin, a dissolved air water releaser (12) is arranged on the dissolved air water pipe, the white water inlet (8) is arranged close to the dissolved air water pipe, and the dissolved air water pipe extends out of the box body and is connected with a dissolved air tank; a normal-pressure stripping water pipe (707) is arranged above the scraper (704), and a fan-shaped wide-angle nozzle is arranged on the normal-pressure stripping water pipe (707); a high-pressure cleaning water pipe (708) is arranged below the scraper (704), and a plurality of needle-shaped nozzles facing the filter wheel are arranged on the high-pressure cleaning water pipe (708).

7. A sewage treatment machine as claimed in claim 1, characterized in that said filter disc type filtering device (9) comprises a drain pipe (901) arranged at the bottom of the ultrafiltration chamber, said drain pipe (901) is provided with mutually parallel fan-shaped filter discs (902), the interior of said filter discs (902) is communicated with the drain pipe (901), and the drain pipe (901) is communicated with the clean water outlet.

8. The sewage treatment machine according to claim 7, wherein the filter disc (902) comprises a bottom net and a surface net, a hollow fiber membrane filter layer is arranged outside the bottom net and the surface net, and a fixing net is further arranged outside the hollow fiber membrane filter layer.

9. The sewage treatment machine according to claim 7, characterized in that the bottom of said ultrafiltration cabin is further provided with a stirrer (13); the stirrer (13) comprises a stirring shaft and blades arranged on the stirring shaft, and the stirring shaft extends out of the box body and is connected with a stirring motor (14).