CN219231536U

CN219231536U - Active sand filter

Info

Publication number: CN219231536U
Application number: CN202320805811.3U
Authority: CN
Inventors: 王培玉; 王培鑫; 王焕文
Original assignee: Shandong Dijie Environmental Protection Technology Co ltd
Current assignee: Shandong Dijie Environmental Protection Technology Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-06-23
Anticipated expiration: 2033-04-12

Abstract

The utility model relates to the technical field of sand filters, in particular to an active sand filter, which at least comprises a main box body, a sand washing filter assembly and a water flow guiding assembly, wherein the sand washing filter assembly is used for intercepting impurities in wastewater, so that the water flow and the sand flow are opposite, a diversion water delivery assembly is arranged on the surface of the main box body, a plurality of channels are formed on the surface of the main box body, the diversion water delivery assembly is used for providing a path for water to flow in and out, the diversion water delivery assembly is communicated with the sand washing filter assembly, and the diversion water delivery assembly discharges the intercepted impurities into the main box body through the sand washing filter assembly; the sand washing filter assembly and the diversion water delivery assembly are used for continuously running the wastewater filtration, the shutdown backwash is not needed, the efficiency is high, the backwash of the internal cleaning element is not needed, the primary processing operation time of the device for wastewater is prolonged, meanwhile, the filter material is added once, the filter material is not needed to be replaced in the later stage, and the operation and maintenance cost is low.

Description

Active sand filter

Technical Field

The utility model relates to the technical field of sand filters, in particular to an active sand filter.

Background

At present, in the wastewater treatment process, filtration is an important process for eliminating impurities, removing pollution and enabling effluent to reach the standard. The sand filter has the advantages of small filtration resistance, large specific surface area, strong acid and alkali resistance, good dirt resistance and the like, and is adopted by most water treatment experts in the field of advanced wastewater treatment and even reclaimed water recycling.

For sand filters, there are many prior art techniques, such as:

chinese patent publication No. CN204973189U discloses a sand filter, which comprises a reaction kettle, wherein the top of the reaction kettle is provided with a first pipeline, and the pipeline is simultaneously connected with a water inlet and a backwash water outlet; a second pipeline is arranged at the bottom of the reaction kettle and is simultaneously connected with a filtering water outlet and a backwashing water inlet; the bottom of the reaction kettle is provided with a group of drainage caps, and the upper parts of the drainage caps are filled with fillers. Compared with the prior art, the utility model has the advantages of simple structure and scientific design, and meanwhile, the whole reaction kettle can be kept clean by adding the back flushing equipment, thereby being beneficial to recycling.

Therefore, the sand filter is designed to keep good purification effect because the high-pressure water flow directly flows through the tank body, the tank body of the sand filter needs to keep a large enough volume to enable the water flow to be in contact with the filter medium for a long enough time, impurities in the water flow can be fully absorbed, the installation and maintenance are inconvenient, the water consumption is large during backflushing due to the large volume, backflushing sand leakage is not clean, the filtering efficiency is influenced, shutdown operation is needed during backflushing, normal production is influenced, and the shaking power is generated due to the flowing of the water in the tank body, so that the sand filtering bed is unstable in the operation process of equipment, and the phenomenon of local sand filtering accumulation or short flow occurs.

In view of this, the present utility model provides an activated sand filter.

Disclosure of Invention

The utility model aims to solve the defects and provide the active sand filter which can finish the functions of cleaning discharged water, automatically cleaning sand and guiding and integrating sand washing wastewater.

The main box body is provided with the sand washing filtering component and the diversion water delivery component, and the flow directions of sand and filtered water are opposite at the moment, so that the filtering quality is improved, meanwhile, the sand washing filtering component continuously operates in a filtering mode, shutdown backwashing is not needed, and the efficiency is high.

The utility model provides an active sand filter which at least comprises a main box body, wherein the main box body is used for sealing sand and water, a sand washing filter assembly is arranged in the main box body and used for intercepting impurities in wastewater, the sand washing filter assembly guides water flow to rise so that the flowing directions of the water flow and the sand are opposite, a diversion water delivery assembly is arranged on the surface of the main box body and is provided with a plurality of channels, the diversion water delivery assembly is used for providing a path for water to flow in and out, the diversion water delivery assembly is communicated with the sand washing filter assembly, and the intercepted impurities are discharged out of the main box body through the sand washing filter assembly.

As a further improvement of the technical scheme, the sand washing filtering component at least comprises a splash guard, the splash guard is arranged at the top of the main box body, a sand washer is arranged at the bottom of the splash guard, and a water distributor is arranged at the bottom of the sand washer.

As a further improvement of the technical scheme, the bottom of the water distributor is provided with a sand guide hopper, the surface of the splash guard is provided with a sand lifter, and the water distributor is communicated with the splash guard and is used for releasing raw water so as to enable raw water flow to rise upwards.

As a further improvement of the technical scheme, the diversion water delivery assembly at least comprises a water outlet, the water outlet is arranged on the surface of the main box body, a sand washing outlet is arranged on the surface of the main box body, and the other end of the sand washing outlet is communicated with the sand washer.

As a further improvement of the technical scheme, the surface of the main box body is provided with a water inlet, the other end of the water inlet is communicated with the water distributor, the bottom of the main box body is provided with a sand discharge port, the sand discharge port is communicated with the sand lifter, and the surface of the sand discharge port is provided with an emptying port.

Compared with the prior art, the utility model has the beneficial effects that:

in this active sand filter, make to filtering continuous operation to waste water through sand washing filter component and water conservancy diversion water delivery subassembly, need not to shut down the back flush, it is efficient, need not the inside clearance component of back flush, improve this device and once process the operation duration to waste water, the filter material disposable interpolation simultaneously, the later stage need not to change the filter material, operation and maintenance cost are low, and collect to coagulate through sand washing filter component and water conservancy diversion water delivery subassembly, deposit and filter in an organic whole, technological process and occupation space have been simplified greatly, rethread sand washing filter component and water conservancy diversion water delivery subassembly looks adaptation make the filter material by continuous cleaning, the filter effect is good, there is not the primary filtrate problem, the water quality of the effluent is stable, improve the usability of this device.

Drawings

The utility model is described in more detail below, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a main housing of the present utility model;

fig. 2 is a schematic view of the splash shield of the present utility model.

The meaning of each reference sign in the figure is:

10. a main case;

20. a sand washing filter assembly; 21. a splash guard; 22. a sand washer; 23. a water distributor; 24. a sand guide hopper; 25. a sand lifter;

30. a diversion water delivery assembly; 31. a water outlet; 32. sand washing water outlet; 33. a water inlet; 34. a sand discharge port; 35. and an air vent.

Detailed Description

Because the sand filter adopts the design that high-pressure water flow directly flows through the tank body, the tank body of the sand filter needs to be kept with a large enough volume to enable the water flow to be in contact with the filter medium for a long enough time, impurities in the water flow can be fully absorbed, the installation and maintenance are very inconvenient, moreover, the water consumption is large during backflushing due to the large volume, backflushing and sand running are not clean, the filtering efficiency is influenced, the shutdown operation is needed during backflushing, the normal production is influenced, and the shaking power is generated due to the flowing of the water in the tank body, so that the sand filtering bed is unstable in the operation process of equipment, and the phenomenon of local sand filtering accumulation or short flow occurs.

As shown in fig. 1-2, the device at least comprises a main box body 10, wherein the main box body 10 is used for sealing sand and water, a sand washing filter assembly 20 is arranged in the main box body 10, the sand washing filter assembly 20 is used for intercepting impurities in wastewater, the sand washing filter assembly 20 guides water flow to rise, so that the flowing directions of the water flow and the sand are opposite, a diversion water delivery assembly 30 is arranged on the surface of the main box body 10, a plurality of channels are formed on the surface of the main box body 10 by the diversion water delivery assembly 30, the diversion water delivery assembly 30 is used for providing a path for water to flow in and out, the diversion water delivery assembly 30 is communicated with the sand washing filter assembly 20, and the diversion water delivery assembly 30 discharges the intercepted impurities out of the inside of the main box body 10 through the sand washing filter assembly 20;

the improvement of the embodiment is that: the sand washing filter assembly 20 and the diversion water delivery assembly 30 are used for continuously running the wastewater filtration, the shutdown backwash is not needed, the backflushing of an internal cleaning element is not needed, the primary processing operation time of the device is prolonged, the sand washing filter assembly 20 and the diversion water delivery assembly 30 are integrated with coagulation, precipitation and filtration, the process flow and the occupied space are greatly simplified, the filter material is continuously cleaned through the adaptation of the sand washing filter assembly 20 and the diversion water delivery assembly 30, the filtering effect is good, the primary filtrate problem is avoided, and the water quality of the effluent is stable;

the sand washing filter assembly 20 at least comprises a splash guard 21, wherein the splash guard 21 is arranged at the top of the main box body 10, a sand washer 22 is arranged at the bottom of the splash guard 21, a water distributor 23 is arranged at the bottom of the sand washer 22, a sand guide 24 is arranged at the bottom of the water distributor 23, a sand lifter 25 is arranged on the surface of the splash guard 21, and the water distributor 23 is communicated with the splash guard 21 and used for releasing raw water so as to enable the raw water to flow upwards;

the diversion water delivery assembly 30 at least comprises a water outlet 31, the water outlet 31 is arranged on the surface of the main box body 10, a sand washing outlet 32 is arranged on the surface of the main box body 10, the other end of the sand washing outlet 32 is communicated with the sand washer 22, a water inlet 33 is arranged on the surface of the main box body 10, the other end of the water inlet 33 is communicated with the water distributor 23, a sand discharge opening 34 is arranged at the bottom of the main box body 10, the sand discharge opening 34 is communicated with the sand lifter 25, and a vent 35 is arranged on the surface of the sand discharge opening 34.

To sum up, the working principle of the scheme is as follows: when waste water needs to be filtered and cleaned, the device is based on the countercurrent principle, raw water enters the main box body 10 from top to bottom through the water inlet 33, flows upwards after being evenly distributed through the water distributor 23, is filtered through the filter material layer, filtered liquid is gathered at the upper part of the filter and is discharged to the clear water channel through the overflow weir, in the process, the raw water is filtered, the pollutant content in water is reduced, meanwhile, the pollutant content in quartz sand is increased, and the pollutant content of the lower filter material layer is higher than that of the upper filter material layer. During filtering, air is supplied to the air control cabinet by the air compressor, air is distributed to the air lift pump positioned at the middle lower part of the filter by the air control cabinet, quartz sand with pollutants trapped at the bottom layer is lifted to the sand washer 22 at the top of the filter for cleaning under the action of the air lift pump, the sand particles are returned to the filter bed after being cleaned, and the pollutants generated by cleaning are discharged outside through the sand washing water outlet 32.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The active sand filter, its characterized in that: the novel sewage treatment device comprises at least one main box body (10), the main box body (10) is used for sealing sand and water, a sand washing filter assembly (20) is arranged inside the main box body (10), the sand washing filter assembly (20) is used for intercepting impurities in waste water, the sand washing filter assembly (20) guides water flow to rise, so that the water flow and the sand flow direction are opposite, a diversion water delivery assembly (30) is arranged on the surface of the main box body (10), a plurality of channels are formed in the surface of the main box body (10) by the diversion water delivery assembly (30), the diversion water delivery assembly (30) is used for providing a path for water to flow in and out, the diversion water delivery assembly (30) is communicated with the sand washing filter assembly (20), and the diversion water delivery assembly (30) discharges the intercepted impurities out of the inside the main box body (10) through the sand washing filter assembly (20).

2. The activated sand filter of claim 1, wherein: the sand washing filter assembly (20) at least comprises a splash guard (21), the splash guard (21) is arranged at the top of the main box body (10), a sand washer (22) is arranged at the bottom of the splash guard (21), and a water distributor (23) is arranged at the bottom of the sand washer (22).

3. The activated sand filter of claim 2, wherein: the bottom of the water distributor (23) is provided with a sand guide hopper (24), the surface of the splash guard (21) is provided with a sand lifter (25), and the water distributor (23) is communicated with the splash guard (21) and is used for releasing raw water so as to enable raw water flow to rise upwards.

4. The activated sand filter of claim 3, wherein: the diversion water delivery assembly (30) at least comprises a water outlet (31), the water outlet (31) is arranged on the surface of the main box body (10), a sand washing water outlet (32) is arranged on the surface of the main box body (10), and the other end of the sand washing water outlet (32) is communicated with the sand washer (22).

5. The activated sand filter of claim 4, wherein: the sand removing device is characterized in that a water inlet (33) is formed in the surface of the main box body (10), the other end of the water inlet (33) is communicated with the water distributor (23), a sand removing opening (34) is formed in the bottom of the main box body (10), the sand removing opening (34) is communicated with the sand extracting device (25), and an emptying opening (35) is formed in the surface of the sand removing opening (34).