CN218686705U

CN218686705U - Mechanical membrane grille device

Info

Publication number: CN218686705U
Application number: CN202222763092.1U
Authority: CN
Inventors: 陈杰斌; 付亮; 葛泽波; 彭川
Original assignee: Luzhou Fanxing Environmental Protection Development Co ltd
Current assignee: Luzhou Fanxing Environmental Protection Development Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-03-24
Anticipated expiration: 2032-10-19

Abstract

The utility model relates to the technical field of membrane grating devices, which aims to solve the problems that the gratings in the prior art have large volume, high price , high requirement on operation capacity and unsatisfactory filtering effect; the mechanical membrane grating device comprises a box body, wherein a first partition plate and a second partition plate are longitudinally arranged in the box body and divide the box body into an independent water inlet compartment, a filtering compartment and an overflow compartment in sequence; one side of the water inlet compartment is communicated with a water inlet pipe, the top of the first partition plate is provided with a water passing port, and the water inlet compartment is communicated with the filtering compartment through the water passing port; the top of the filtering compartment is provided with a grid screen plate, and the height of the grid screen plate does not exceed the water passing port; the bottom of the filtering compartment is provided with a purified water outlet pipe; the overflow compartment is communicated with the top space of the grid screen plate; which can reduce the surface pollution of fine hair and fiber material to the membrane assembly of the subsequent treatment device.

Description

Mechanical membrane grating device

Technical Field

The utility model relates to a membrane grille installation technical field particularly, relates to a mechanical type membrane grille installation.

Background

Membrane separation is a separation technique widely used for separation, concentration and purification of solutions or gaseous substances. The method is mainly applied to the industries of medicine, chemical industry, construction, petrifaction and the like such as mineral water purification, production and living water purification, medicine purification, municipal sewage treatment and the like. In particular, in recent years, membrane Bioreactors (MBR) are increasingly commonly used in the treatment of town sewage, industrial wastewater, reclaimed water reuse and the like, and MBRs have the advantages of excellent effluent quality, high sludge concentration, small occupied area and the like, but because the pollution types of membranes are more, the pollution control difficulty of the membranes is high, and the popularization and application of the membrane process are correspondingly difficult. Wherein the contamination of the membrane by fine hair and fibrous materials is one of the types of membrane contamination, which causes a surface contamination phenomenon of the membrane module. In order to reduce the occurrence of the phenomenon, the membrane process sewage treatment process section is added with a process for pretreating inlet water by adopting a fine grid, and the process is divided into a rotary drum type process, a step type process, an internal inflow type process and the like from the structure of the fine grid, but the fine grids in the forms have the defects of large volume, high price, high operation capability requirement, non-ideal filtering effect, high failure rate, high inspection and maintenance difficulty, power consumption and the like, and the application range of the fine grid is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of large volume, high price , high operation capability requirement and unsatisfactory filtering effect of the prior art in the prior art; a mechanical membrane grill device is provided which reduces surface contamination of membrane modules of a subsequent treatment device by fine hair and fibrous materials.

The embodiment of the utility model discloses a realize through following technical scheme:

a mechanical membrane grating device comprises a box body, wherein a first partition plate and a second partition plate are longitudinally arranged in the box body and divide the box body into an independent water inlet compartment, a filtering compartment and an overflow compartment in sequence; one side of the water inlet compartment is communicated with a water inlet pipe, the top of the first partition plate is provided with a water passing port, and the water inlet compartment is communicated with the filtering compartment through the water passing port; the top of the filtering compartment is provided with a grid screen plate, and the height of the grid screen plate does not exceed the water passing port; the bottom of the filtering compartment is provided with a purified water outlet pipe; and the overflow compartment is communicated with the top space of the grid screen plate.

Furthermore, the grid mesh plate is obliquely arranged from one end close to the water passing port to one end close to the overflow compartment from high to low.

Furthermore, the grid mesh plate and the horizontal plane form an included angle of more than 30 degrees.

Furthermore, the bottom of the water inlet compartment is provided with a first water discharge pipe.

Furthermore, a basket grid is arranged in the overflow compartment.

Further, the height of the basket grid does not exceed the lower end of the grid mesh plate.

Further, a second drain pipe is arranged at the bottom of the overflow compartment.

Furthermore, a plurality of overflow pipes are arranged on the side surface of the overflow compartment.

Furthermore, the top of the water inlet compartment, the top of the filtering compartment and the top of the overflow compartment can be detachably provided with cover plates

The utility model discloses technical scheme has following advantage and beneficial effect at least:

the mechanical membrane grating device provided by the utility model can timely filter out impurities in sewage, and reduce surface pollution of fine hair and fiber substances to the membrane component of the subsequent treatment device; just the utility model discloses mechanical membrane grid device small in size, low price, simple structure, reliability are high, the maintenance cost is low, require low, the suitability is strong to personnel's quality, have solved the technical defect that current meticulous grid exists, have good market prospect, suitable extensive popularization and application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a mechanical membrane grid device according to an embodiment of the present invention;

icon: 1-water inlet compartment, 11-water inlet pipe, 12-first water discharge pipe, 2-first partition plate, 21-water passing port, 3-leg support, 4-filtering compartment, 41-purified water outlet pipe, 5-second partition plate, 6-overflow compartment, 61-overflow pipe, 62-basket grid, 63-second water discharge pipe, 7-grid screen plate and 8-cover plate.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1

Referring to fig. 1, the present embodiment provides a mechanical membrane grid device, which includes a box body, and a first partition plate 2 and a second partition plate 5 are longitudinally arranged in the box body and divide the box body into an independent water inlet compartment 1, a filtering compartment 4 and an overflow compartment 6 in sequence; one side of the water inlet compartment 1 is communicated with a water inlet pipe 11, a water passing port 21 is formed in the first partition plate 2, and the water inlet compartment 1 is communicated with the filtering compartment 4 through the water passing port 21; the top of the filtering compartment 4 is detachably provided with a grid screen plate 7, and the height of the grid screen plate 7 is not more than that of the water passing port 21; the bottom of the filtering compartment 4 is provided with a purified water outlet pipe 41; the overflow compartment 6 is communicated with the top space of the grid mesh plate 7.

In this embodiment, the grating net plate 7 is disposed obliquely, and is disposed obliquely from the end close to the water passing opening 21 to the end close to the overflow compartment 6 from high to low, preferably, the grating net plate 7 forms an included angle of more than 30 ° with the horizontal plane, so that the sewage can better fall down according to gravitational potential energy, and impurities on the grating net plate 7 can be flushed into the overflow compartment 6 at the lower end or the basket grating 62 inside the overflow compartment 6 as soon as possible.

In addition, the grid net plate 7 can be composed of stainless steel handles and net plates, wherein the stainless steel handles are welded at the left end and the right end of the net plate, phi 3 round holes are uniformly distributed on the net plate, the hole pitch of the round holes is 5mm, and no reinforcing rib is arranged on the front surface and the back surface of the net plate.

In this embodiment, the bottom of the water inlet compartment 1 is provided with a first drainage pipe 12, which is convenient for discharging untreated sewage.

In this embodiment, a basket grid 62 is further disposed in the overflow compartment 6, and the height of the basket grid 62 does not exceed the lower end of the grid mesh plate 7, so that impurities or sewage on the surface of the grid mesh plate 7 can be filtered and collected again.

In this embodiment, the bottom of the overflow compartment 6 is provided with a second drain pipe 63 for draining the sewage.

In this embodiment, a plurality of overflow pipes 61 are further disposed on the side surface of the overflow compartment 6, so that excessive sewage can be timely led out.

In this embodiment, the water passing opening 21 is located at a height of more than 4/5 of the height of the first partition plate 2, so that the water inlet compartment 1 can play a role of buffering the impact of the water inlet flow, and the buffered sewage can enter the grid mesh plate 7 from the water passing opening 21 in time for filtration treatment, thereby not only improving the treatment speed of the sewage, but also reducing excessive enrichment of the sewage in the water inlet compartment 1.

In this embodiment, the top of the water inlet compartment 1, the top of the filtering compartment 4 and the top of the overflow compartment 6 are all detachably provided with cover plates 8. Specifically, a water inlet cover plate 8 can be arranged on the water inlet compartment 1, a grating cover plate 8 can be arranged on the filtering compartment 4, an overflow cover plate 8 can be arranged on the overflow compartment 6, a basket grating 62 can be arranged in the overflow compartment 6, and a grating screen plate 7 can be arranged in the filtering compartment 4. Thus, each space can be observed and processed, and the processed grating net plate 7 and the basket grating 62 can be taken out to clean impurities.

The working principle is as follows: the box body of the utility model is divided into a water inlet compartment 1, a filtering compartment 4 and an overflow compartment 6 by a baffle plate, and the bottom of the box body is also provided with a plurality of supporting leg brackets 3;

the water inlet pipe 11 is welded on the side surface of the water inlet compartment 1 of the box body, the purified water outlet pipe 41 is welded on the bottom of the filtering compartment 4 of the box body, the first water discharge pipe 12 is welded on the bottom of the water inlet compartment 1, the second water discharge pipe 63 is welded on the bottom of the overflow compartment 6, and the overflow pipe 61 is welded on the side surface of the overflow compartment 6;

the top of the filtering compartment 4 is provided with a grid screen plate 7 for filtering sewage, preferably, the grid screen plate 7 forms an included angle of more than 30 degrees with the horizontal plane, and round holes with the hole distance of 5mm and the hole diameter of phi 3 are uniformly distributed on the screen plate. Sewage enters the water inlet compartment 1 through the water inlet pipe 11 on the side surface of the water inlet compartment 1, the water inlet compartment 1 plays a role in buffering the impact of inflow water, the water level in the water inlet compartment 1 is gradually lifted along with the increase of the inflow water amount, and the sewage enters the filtering compartment 4 through the water passing port 21 formed in the first partition plate 2 between the water inlet compartment 1 and the filtering compartment 4. Under the dual action of water flow thrust and gravity, sewage enters the bottom of the filtering compartment 4 through meshes on the grid mesh plate 7, and fine hair, fiber substances and other impurities are filtered on the surface of the grid mesh plate 7, so that the separation of the fine hair, the fiber substances and other impurities from the sewage is realized, and the surface pollution of the fine hair and the fiber substances to the membrane component is reduced. The treated sewage enters MBR equipment for advanced treatment through a purified water outlet pipe 41 at the bottom of the filtering compartment 4.

The utility model provides a mechanical membrane grid device small in size, low price, simple structure, reliability are high, the maintenance cost is low, require low, the suitability is strong to personnel's quality, have solved the technical defect that current meticulous grid exists, have good market prospect, suitable extensive popularization and application.

The above is only a preferred embodiment of the present invention, and is not intended to limit 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. A mechanical membrane grating device comprises a box body, and is characterized in that a first partition plate and a second partition plate are longitudinally arranged in the box body and divide the box body into an independent water inlet compartment, a filtering compartment and an overflow compartment in sequence;

one side of the water inlet compartment is communicated with a water inlet pipe, a water passing port is formed in the first partition plate, and the water inlet compartment is communicated with the filtering compartment through the water passing port;

the top of the filtering compartment is provided with a grid screen plate, and the height of the grid screen plate does not exceed the water passing port; the bottom of the filtering compartment is provided with a purified water outlet pipe;

and the overflow compartment is communicated with the top space of the grid screen plate.

2. The mechanical membrane grid device according to claim 1, wherein the grid mesh plate is arranged obliquely and obliquely from high to low from one end close to the water passing opening to one end close to the overflow compartment.

3. The mechanical membrane grid assembly of claim 2, wherein the angle between the grid mesh and the horizontal plane is not less than 30 °.

4. The mechanical membrane grill device of claim 1, wherein the bottom of the water inlet compartment is provided with a first drain pipe.

5. The mechanical membrane grill assembly of claim 1, wherein a basket grill is further disposed within the overflow compartment.

6. The mechanical membrane grill assembly of claim 5, wherein the height of the basket grill does not exceed the lower end of the grill mesh.

7. The mechanical membrane grid assembly of claim 6, wherein a second drain is provided at the bottom of the overflow compartment.

8. The mechanical membrane grid device according to claim 5, wherein the overflow compartment is further provided with a plurality of overflow pipes at the side thereof.

9. The mechanical membrane grid assembly of claim 1, wherein the water gap is located above the level of the first partition plate by 4/5 th.

10. The mechanical membrane grid assembly of claim 1, wherein the top of the inlet compartment, the filtration compartment, and the overflow compartment are removably provided with a cover plate.