CN215352349U

CN215352349U - Sewage filtering device

Info

Publication number: CN215352349U
Application number: CN202121273761.6U
Authority: CN
Inventors: 张伟飞; 陈淳; 姚金雷; 奚卫青
Original assignee: Taicang Yicheng Industrial Design Co ltd
Current assignee: Taicang Yicheng Industrial Design Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-31
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses a sewage filtering device, which comprises a filtering box and an air-jet deslagging mechanism, wherein a rotating cage is arranged in the filtering box, a filter screen is wrapped on the circumferential surface of the rotating cage, and a mud shoveling plate is also arranged on the rotating cage and positioned on the inner side of the filter screen; jet-propelled slagging-off mechanism installs on the box of rose box, its air nozzle stretches into in the rose box, and the orientation the filter screen is arranged, the air nozzle is followed reciprocating motion is to the axial of rotating cage, is in with the clearance adhesion the impurity on filter screen and the shovel mud board. According to the utility model, through the design of the mud shoveling plate in the rotating cage and the air-jet deslagging mechanism outside the rotating cage, on one hand, impurities in sewage are guaranteed to be effectively intercepted, on the other hand, the intercepted impurities can be effectively removed, and the influence on the filtering effect caused by the fact that the impurities are always adhered to the filter screen is prevented; the utility model can realize continuous filtration and automatic separation and removal of impurities in sewage, and has high production efficiency and strong practicability.

Description

Sewage filtering device

Technical Field

The utility model relates to the field of water treatment equipment, in particular to a sewage filtering device.

Background

In the fields of printing and dyeing industry, kitchen waste treatment and the like, a large amount of sewage is generally generated, and solid particle impurities with different sizes, fiber impurities with different lengths and the like are contained in the sewage. When the industry is dealing with such waste water or sewage, it is common to carry out more than two filtration treatments, wherein the first filtration treatment is mainly to remove large-sized particles and heavy-viscous dirt such as large-length fibers and hair by using a filter screen or a grid filter screen with larger meshes, and then to filter out the small-sized insoluble substances.

In the prior art, a filter capable of removing impurities such as small-particle insoluble substances, small-size hair and the like in sewage mostly has the following problems: solid-liquid separation is not thorough, and impurities and dirt such as small-particle insoluble substances or small-size hair are adhered to the filter screen and are not easy to remove, so that the filter screen is blocked, and the filtering efficiency is reduced. Chinese patent CN 104383741 a discloses a filter for wastewater treatment, which adopts a rotating cage form to filter and remove impurities, and uses a guide plate installed on a rotating cage fixing frame to intercept the impurities in the rotating cage and roll the impurities into spherical impurities along with the rotation of the rotating cage to throw the spherical impurities out of the rotating cage, thereby completing the filtration. In fact, the impurity of filter screen interception on the rotating cage still contains oily composition even, and the adhesion can not be totally, effectual breaks away from the filter screen and rolls the balling-up on the filter screen, and the most impurity is attached to on the filter screen, leads to sewage effectively filterable, and the result of use is poor, lets need regularly shut down to carry out artifical clearance, and production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a sewage filtering device, which can solve the defects that when the existing filtering device is used for filtering and treating small-size particle impurities, insoluble substances or impurities such as hair, the impurities are easy to adhere to a net and are difficult to separate and remove.

In order to solve the technical problems, the utility model adopts a technical scheme that: the sewage filtering device comprises a filtering box and an air-jet deslagging mechanism, wherein a rotating cage is arranged in the filtering box, a filter screen is wrapped on the circumferential surface of the rotating cage, and a mud shoveling plate is also arranged on the rotating cage and positioned on the inner side of the filter screen; jet-propelled slagging-off mechanism installs on the box of rose box, its air nozzle stretches into in the rose box, and the orientation the filter screen is arranged, the air nozzle is followed reciprocating motion is to the axial of rotating cage, is in with the clearance adhesion the impurity on filter screen and the shovel mud board.

In a preferred embodiment of the utility model, said shoveling plates are mounted on said rotating cage at equal intervals, each of said shoveling plates being arranged in parallel to a radial direction of said rotating cage.

In a preferred embodiment of the utility model, the air-jet deslagging mechanism comprises an air nozzle and a slider-crank mechanism; the crank sliding block mechanism comprises a sliding rod, a sliding block arranged on the sliding rod and a crank connected with the sliding block, wherein the sliding rod is fixed on two opposite wall surfaces of the filter box in a direction parallel to the radial direction of the rotary cage, and the air nozzle is arranged on the sliding block and moves linearly and reciprocally along the sliding block along the sliding rod.

In a preferred embodiment of the present invention, an included angle between an air injection direction of the air nozzle and a radial direction of the rotating cage is 30 to 60 ℃.

In a preferred embodiment of the utility model, the angle between the air injection direction of the air nozzles and the radial direction of the rotating cage is 45 ℃.

In a preferred embodiment of the utility model, a mud bucket is fixedly arranged in the filter box, the mud bucket is positioned in the rotating cage, the large-caliber end of the mud bucket faces upwards, the small-caliber end of the mud bucket is connected with an auger, and the auger extends out of the sewage discharge outlet of the filter box and is used for conveying impurities received in the mud bucket to the outside of the filter box.

In a preferred embodiment of the utility model, the inner diameter of the large-diameter end of the hopper is larger than the maximum distance between two oppositely arranged shovel plates.

In a preferred embodiment of the utility model, a water inlet is further installed on the side wall of the filter box with the sewage draining outlet, and the water inlet extends into the cavity of the rotating cage.

In a preferred embodiment of the utility model, the water inlet extends into the cavity of the rotating cage and is positioned below the packing auger.

In a preferred embodiment of the present invention, the filter box is further provided with a water outlet.

The utility model has the beneficial effects that: according to the sewage filtering device, due to the design of the mud shoveling plate in the rotating cage and the air-jet deslagging mechanism outside the rotating cage, on one hand, impurities in sewage are guaranteed to be effectively intercepted, on the other hand, the intercepted impurities can be effectively removed, and the influence on the filtering effect caused by the fact that the impurities are always adhered to the filtering net is prevented; the utility model can realize continuous filtration and automatic separation and removal of impurities in sewage, and has high production efficiency and strong practicability.

Drawings

FIG. 1 is a schematic perspective view of a sewage filtering apparatus according to a preferred embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the circled portion of FIG. 1;

FIG. 3 is a rear view of the structure of FIG. 1;

FIG. 4 is a side view of the internal structure of FIG. 1;

FIG. 5 is a schematic view of the illustrated crank block configuration;

the parts in the drawings are numbered as follows: 1. the device comprises a filter box, 2. a rotating cage, 3. a filter screen, 4. a mud shoveling plate, 5. a mud bucket, 6. a packing auger, 7. a sewage discharge outlet, 8. a water inlet, 9. an air nozzle, 10. a crank-slider mechanism, 11. a slide bar, 12. a slider, 13. a crank and 14. a water outlet.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring to fig. 1 to 5, an embodiment of the present invention includes:

example 1

The utility model discloses a sewage filtering device, which comprises a filtering box 1 and an air-jet deslagging mechanism; the filter box is characterized in that a rotating cage 2 is installed in the filter box 1, one end of a central shaft of the rotating cage 2 extends out of the filter box 1 and is connected with a motor (not shown), and the rotating cage is driven by the motor to rotate in situ in the filter box 1.

The rotating cage 2 is a cylindrical framework made of a plurality of round stainless steel sheet metal parts, a filter screen 3 is wrapped on the circumferential surface of the rotating cage, and the filter screen 3 is made of a stainless steel wire net and used for intercepting and filtering impurities in sewage. A plurality of shoveling plates 4 which are distributed at equal intervals are further mounted on the rotary cage 2 and are positioned on the inner side of the filter screen 3, and each shoveling plate 4 is arranged in a direction parallel to the radial direction of the rotary cage 2. The length of each mud scraper 4 extending into the rotating cage 2 is 1/6-1/3 of the inner diameter of the rotating cage 2. When the rotating cage 2 rotates, sewage to be treated in the rotating cage flows through the mudguard 4, so that impurities in the sewage are intercepted and adhered to the mudguard 4.

A mud bucket 5 is fixedly arranged in the filter box 1, and the mud bucket 5 is positioned in the rotating cage 2 but does not rotate along with the rotating cage 2. The large-caliber end of the mud bucket 5 faces upwards, and the inner diameter of the large-caliber end of the mud bucket is smaller than the maximum distance between the two oppositely-arranged mud shoveling plates 4, so that the rotating cage 2 is prevented from touching the mud bucket 5 in the rotating process. In the process that the shovel plate 4 rotates along with the rotating cage 2, when the shovel plate 4 adhered with impurities rotates to the upper part of the mud bucket 5, the impurities on the shovel plate can fall into the mud bucket 5 under the action of gravity. The small-caliber end of the mud bucket 5 is connected with an auger 6, the auger 6 extends out of the filter box 1 from a sewage discharge outlet 7 of the filter box 1, and is used for conveying impurities accepted in the mud bucket 5 to the outside of the filter box 1. Specifically, the drain outlet 7 is installed on a side surface of the filter tank 1 with respect to a center shaft projecting end of the rotary cage 2 (an end of the center shaft projecting from the filter tank 1).

A water inlet 8 is further arranged on the side face of the filter box 1 with the sewage draining outlet 7, and the water inlet 8 extends into the cavity of the rotating cage 2 and is positioned below the packing auger 6. The water inlet 8 stretches into the part of the rotating cage 2 and the space between the rotating cages 2 is sealed by silica gel (not shown) so as to ensure that all sewage enters the rotating cage 2 to be filtered. The bottom of the side wall of the filter box 1 is also provided with a water outlet 14.

The sewage filtering device also comprises an air-jet deslagging mechanism, and the air-jet deslagging mechanism is arranged on the box body of the filter box 1. Specifically, the air-jet deslagging mechanism comprises an air nozzle 9 and a slider-crank mechanism 10; wherein, slider-crank mechanism 10 includes slide bar 11, slider 12 and crank 13, the quantity of slide bar 11 is two, and on the relative lateral wall of the parallel fixed rose box 1 of axial direction of rotating cage 2, slider 12 runs through the formula and installs on slide bar 11, and can follow slide bar 11 motion, slider 12 with crank 13 fixed connection, air nozzle 9 installs on slider 12, its jet-propelled end orientation filter screen 3, just air nozzle 9's jet-propelled direction with the contained angle between rotating cage 2's the radial is 45 ℃, ensures effectively to blow off the impurity of adhesion on the filter screen to and the impurity of remaining on shovel mud board 4, and air inlet end of air nozzle 9 passes through pipeline and compressed air jar (not shown) intercommunication. Crank 13 in slider-crank mechanism 10 drives slider 12 and makes reciprocating linear motion along slide rail 11 to make air nozzle 9 on the slider 11 can effectively spout the filter screen 3 of revolving cage and the impurity on the shovel mud board 4, it is effectual to have the edulcoration, saves the advantage of gas flow.

The utility model relates to a sewage filtering device, which has the working principle that:

sewage to be filtered flows into the rotary cage 2 through the water inlet 8, the rotary cage 2 is driven by the motor to rotate, impurities in the sewage in the rotary cage 2 can be adhered to the mud shoveling plate 4 and the filter screen 3 in the rotating process, the filtered sewage flows into the filter box 1 and is discharged out of the filter device through the water outlet 14 on the filter box 1;

when the mud shoveling plate 4 adhered with impurities rotates to the upper part of the mud bucket 5, the impurities adhered to the mud shoveling plate can partially or completely fall into the mud bucket 5, and the impurities which do not fall and the impurities adhered to the filter screen 3 are sprayed into the mud bucket 5 through an air nozzle 9 which is driven by a crank slide block mechanism 10 to do linear reciprocating motion; impurities in the mud bucket 5 fall into the auger 6, are discharged out of the filter box 1 from the sewage discharge outlet 7 through the transmission of the auger 6, and the solid-liquid automatic continuous separation operation of sewage is completed.

The sewage filtering device has the following beneficial effects:

1. through the design of the mud shoveling plate in the rotating cage and the air-jet deslagging mechanism outside the rotating cage, on one hand, impurities in sewage are guaranteed to be effectively intercepted, on the other hand, the intercepted impurities can be effectively removed, and the influence on the filtering effect caused by the fact that the impurities are always adhered to the filter screen is prevented;

2. through the design of mud bucket and auger, guaranteed that the impurity after the rotating cage interception can in time effectually shift to the rose box outside, realize that the automatic separation of impurity is got rid of, production efficiency is high.

3. Through the design of the air injection direction of the air nozzle, the effect of cleaning impurities is ensured on one hand, and on the other hand, the air source is saved, and the air nozzle has the advantages of energy conservation and high efficiency.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.

Claims

1. A sewage filtering device is characterized by comprising a filtering box and an air-jet deslagging mechanism, wherein a rotating cage is arranged in the filtering box, a filter screen is wrapped on the circumferential surface of the rotating cage, and a mud shoveling plate is also arranged on the rotating cage and positioned on the inner side of the filter screen; jet-propelled slagging-off mechanism installs on the box of rose box, its air nozzle stretches into in the rose box, and the orientation the filter screen is arranged, the air nozzle is followed reciprocating motion is to the axial of rotating cage, is in with the clearance adhesion the impurity on filter screen and the shovel mud board.

2. The sewage filtering apparatus according to claim 1, wherein said scraper blades are installed on said rotating cage at equal intervals, and each of said scraper blades is arranged in a direction parallel to a radial direction of said rotating cage.

3. The wastewater filtering device according to claim 2, wherein the air-jet deslagging mechanism comprises an air jet nozzle and a slider-crank mechanism; the crank sliding block mechanism comprises a sliding rod, a sliding block arranged on the sliding rod and a crank connected with the sliding block, wherein the sliding rod is fixed on two opposite wall surfaces of the filter box in a direction parallel to the radial direction of the rotary cage, and the air nozzle is arranged on the sliding block and moves linearly and reciprocally along the sliding block along the sliding rod.

4. The sewage filtering device according to claim 3, wherein an included angle between the air injection direction of the air injection nozzle and the radial direction of the rotating cage is 30-60 ℃.

5. The wastewater filtering device according to claim 4, wherein the angle between the air jet direction of the air jet nozzles and the radial direction of the rotating cage is 45 ℃.

6. The sewage filtering device according to claim 5, wherein a mud bucket is fixedly mounted in the filtering box, the mud bucket is positioned in the rotating cage, the large-caliber end of the mud bucket faces upwards, the small-caliber end of the mud bucket is connected with an auger, and the auger extends out of the sewage outlet of the filtering box and is used for conveying impurities received in the mud bucket to the outside of the filtering box.

7. The sewage filtering apparatus according to claim 6, wherein an inner diameter of the large-diameter end of the hopper is larger than a maximum distance between two oppositely arranged shoveling plates.

8. The wastewater filtering device according to claim 7, wherein a water inlet is further installed on the side wall of the filtering tank with the sewage draining outlet, and the water inlet extends into the cavity of the rotating cage.

9. The wastewater filtering device according to claim 8, wherein the water inlet extends into the cavity of the rotating cage and is positioned below the packing auger.

10. The waste water filtering device according to claim 9, wherein a drain port is further installed on the filtering tank.