CN220714919U

CN220714919U - Sand filter tank

Info

Publication number: CN220714919U
Application number: CN202221527812.8U
Authority: CN
Inventors: 孙启国
Original assignee: Zibo Shengjing Environmental Protection Engineering Co ltd
Current assignee: Zibo Shengjing Environmental Protection Engineering Co ltd
Priority date: 2022-02-17
Filing date: 2022-06-18
Publication date: 2024-04-05
Anticipated expiration: 2032-06-18

Abstract

The utility model provides a sand filter tank, which comprises a tank body, wherein the tank body comprises a top and a bottom along the vertical direction, a cavity is arranged in the tank body, a filter screen is arranged in the cavity, and the filter screen divides the cavity into an upper cavity and a lower cavity; the filter screen is provided with a filter layer at one end close to the upper cavity, and a stirring device is arranged at the top of the tank body and used for stirring the filter layer; a sewage inlet pipe communicated with the lower cavity is arranged on the side wall of the tank body close to the bottom; a drain pipe communicated with the lower cavity is arranged at the bottom of the tank body; the side wall of the tank body close to the top is respectively provided with a clean water inlet pipe and a clean water outlet pipe. Can see that the sand filtration jar filter effect of this application is good, can furthest filter great granule suspended solid and colloid to can guarantee the long-term use of sand filtration jar.

Description

Sand filter tank

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a sand filter tank.

Background

The sand filter tank is generally used for removing turbidity of raw water, and when in treatment, the raw water is sent into the sand filter tank to remove larger suspended matters, colloid and the like in the water, so that the turbidity of the effluent meets the requirements, and the normal operation of subsequent treatment is ensured.

But current sand filtration jar can appear blockking up after using a period, leads to filterable sewage filterable efficiency greatly reduced to current sand filtration jar structure is complicated, washs inconveniently, therefore need to set up a sand filtration jar and can guarantee long-term use, and can keep filterable efficiency of sewage.

Disclosure of Invention

The present utility model is directed to providing a sand filter tank to solve the above-mentioned technical problems of the background art.

The technical scheme adopted by the utility model is that the sand filtering tank comprises a tank body, wherein the tank body comprises a top and a bottom along the vertical direction, a cavity is arranged in the tank body, a filter screen is arranged in the cavity, and the filter screen divides the cavity into an upper cavity and a lower cavity; wherein,

a filter layer is arranged at one end of the filter screen, which is close to the upper cavity, and a stirring device is arranged at the top of the tank body and used for stirring the filter layer; and

a sewage inlet pipe communicated with the lower cavity is arranged on the side wall of the tank body close to the bottom; a drain pipe communicated with the lower cavity is arranged at the bottom of the tank body; the side wall of the tank body close to the top is respectively provided with a clean water inlet pipe and a clean water outlet pipe.

It can be seen that the sand filtration tank of this application is through setting up the filter screen in the cavity and divide into cavity and lower cavity to set up sewage inlet tube at lower cavity, and set up the outlet pipe at last cavity, make sewage see through filter screen and filter layer in proper order from lower cavity, and discharge through the outlet pipe, this mode is better for from the filterable effect of from the top down filtering mode, can furthest with great granule suspended solid and colloid filtration.

In addition, the sand filter tank is further provided with a stirring device for stirring the filter layer, and it can be understood that when the filter layer filters sewage to a certain extent, larger particle suspended matters and colloid in the sewage can be remained on the filter layer, and the filter layer can be blocked after a long time, so the filter layer is stirred by the stirring device, clean water is introduced into the filter layer through the clean water inlet pipe, the filter layer is cleaned, and impurities such as cleaned sludge are discharged through the drain pipe, so that the long-term use of the sand filter tank is ensured.

As a preferable scheme of the utility model, the sewage treatment device further comprises an overflow pipe, and the overflow pipe is communicated with the sewage inlet pipe.

As a preferable scheme of the utility model, the sewage inlet pipe is arranged along the horizontal direction and is communicated with the lower cavity; the overflow pipe is arranged in the vertical direction and communicated with the sewage inlet pipe, and the water outlet end of the overflow pipe faces upwards.

As a preferable scheme of the utility model, the stirring device comprises a rotating motor and a stirring rod, wherein the rotating motor is arranged at the top of the tank body, the stirring rod is movably arranged at one end of the filter screen close to the upper cavity, and the rotating motor is in driving connection with the stirring rod through a rotating shaft to drive the stirring rod to stir the filter layer.

As a preferable scheme of the utility model, the stirring rod is provided with a rake tooth structure.

As a preferable scheme of the utility model, the stirring rod is arranged close to the filter screen.

As a preferable scheme of the utility model, a bracket is arranged at the top of the tank body, and the rotating motor is arranged on the bracket.

As a preferable scheme of the utility model, a reinforcing ring is arranged between the bracket and the tank body.

As a preferable scheme of the utility model, the drain pipe is also communicated with a drain branch pipe along the horizontal direction.

As a preferable scheme of the utility model, the filter layer is quartz sand.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a structural diagram of a sand filter tank provided by the utility model.

Reference numerals:

1. a tank body; 2. an upper cavity; 3. a lower cavity; 4. a filter screen; 5. a rotating electric machine; 6. a rotating shaft; 7. a stirring rod; 8. a sewage inlet pipe; 9. a blow-down pipe; 10. a clean water inlet pipe; 11. a water outlet pipe; 12. an overflow pipe; 13. a bracket; 14. a reinforcing ring; 15. a blow-down branch pipe; 16. and (5) a support.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of some utility models, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The utility model provides a sand filter tank, which can be used for treating cultivation sewage and filtering solid impurities such as sludge in the sewage.

Referring to fig. 1, a sand filter tank comprises a tank body 1, wherein the tank body 1 comprises a top and a bottom along the vertical direction, a cavity is arranged in the tank body 1, a filter screen 4 is arranged in the cavity, and the filter screen 4 divides the cavity into an upper cavity 2 and a lower cavity 3.

Further, a filtering layer (not labeled in the figure) is disposed at one end of the filter screen 4 near the upper cavity 2, and the filtering layer may be quartz sand stacked together, and at this time, the filter screen 4 plays a role in filtering and supporting the quartz sand. In addition, the pore size of the mesh holes in the filter screen 4 should be smaller than the diameter of the quartz sand to prevent the quartz sand from leaking through the filter screen 4.

And the top of the tank body 1 is provided with a stirring device which is used for stirring the filter layer.

A sewage inlet pipe 8 communicated with the lower cavity 3 is arranged on the side wall of the tank body 1 close to the bottom; a drain pipe 9 communicated with the lower cavity 3 is arranged at the bottom of the tank body 1; the side wall of the tank body 1 close to the top is respectively provided with a clean water inlet pipe 10 and a clean water outlet pipe 11.

It can be seen that the sand filtration tank of this application is through setting up filter screen 4 in the cavity and divide into cavity 2 and lower cavity 3 to set up sewage inlet tube 8 at lower cavity 3, and set up outlet pipe 11 at upper cavity 2, make sewage pass through filter screen 4 and filter layer in proper order from lower cavity 3, and discharge through outlet pipe 11, this mode is better for from the filterable effect of the filtration mode of top down, can furthest with great granule suspended solid and colloid filter.

In addition, the sand filter tank is further provided with a stirring device for stirring the filter layer, and it can be understood that after the filter layer filters sewage to a certain extent, larger particle suspended matters and colloid in the sewage can be remained on the filter layer, and the filter layer can be blocked after a long time, so the filter layer is stirred by the stirring device, clean water is introduced into the filter layer through the clean water inlet pipe 10, the filter layer is cleaned, and impurities such as cleaned sludge are discharged through the drain pipe 9, so that the long-term use of the sand filter tank is ensured.

Further, the sand filter tank further comprises an overflow pipe 12, and the overflow pipe 12 is communicated with the sewage inlet pipe 8. It can be understood that the sewage filtering in the present application adopts the mode of bottom-in and bottom-out, that is, sewage is introduced into the lower cavity 3, overflows to the upper cavity 2 through the filter screen 4 and the filter layer after the lower cavity 3 is overflowed, and is discharged through the water outlet pipe 11 of the upper cavity 2, so that when the filtering speed of the filter layer is smaller than the water inlet speed of the sewage inlet pipe 8 after the sewage in the lower cavity 3 is full, the sewage can flow back to the sewage tank from the overflow pipe 12.

Preferably, the sewage inlet pipe 8 is arranged along the horizontal direction and is communicated with the lower cavity 3; the overflow pipe 12 is arranged along the vertical direction and is communicated with the sewage inlet pipe 8, and the water outlet end of the overflow pipe 12 faces upwards, so that the sewage can flow back to the sewage pool from the overflow pipe 12 after the sewage in the lower cavity 3 is full.

Further, the stirring device comprises a rotating motor 5 and a stirring rod 7, the rotating motor 5 is arranged at the top of the tank body 1, the stirring rod 7 is movably arranged at one end of the filter screen 4, which is close to the upper cavity 2, the rotating motor 5 is in driving connection with the stirring rod 7 through a rotating shaft 6, and the stirring rod 7 is driven to stir the filter layer.

Optionally, the stirring rod 7 is provided with a rake tooth structure, and the rake tooth structure can improve stirring efficiency of the filter layer, so that the filter layer is fully stirred and rolled, colloid remained on the filter layer is destroyed and minced, and cleaning effect is improved.

Optionally, the stirring rod 7 is arranged close to the filter screen 4. It will be appreciated that as the sewage is permeated from bottom to top, larger particle suspensions and colloids in the sewage will preferentially remain in the filter layer near the filter screen 4, since the stirring rod 7 is arranged as close to the filter screen 4 as possible to ensure the cleaning effect on the filter layer.

Further, a bracket 13 is provided at the top of the tank 1, and the rotating electrical machine 5 is provided on the bracket 13, so that the rotating electrical machine 5 can be conveniently installed.

Optionally, a reinforcing ring 14 is further disposed between the bracket 13 and the tank 1, and since the rotating electric machine 5 vibrates during operation, the reinforcing ring 14 is disposed to ensure tight connection between the bracket 13 and the tank 1.

Optionally, in some embodiments, the drain pipe 9 is further connected to a drain branch pipe 15 along a horizontal direction, when the filtering layer of the sand filtering tank is cleaned, sewage generated by cleaning can be discharged back to the sewage tank through the drain branch pipe, and sludge generated during cleaning and suspended matters of some larger particles are willing to be deposited on the drain pipe 9 due to gravity, and when the sludge and the suspended matters of some larger particles on the drain pipe 9 are deposited to a certain extent, the sludge and the suspended matters of some larger particles can be discharged by opening a valve of the drain pipe 9, so that separation of the sewage and the sludge and the suspended matters of some larger particles is realized.

In addition, in some embodiments, in order to facilitate the installation of the sand filter pot, a support 16 may be further provided on the yam filter pot, and the sand filter pot is installed by the support 16.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The sand filter tank is characterized by comprising a tank body, wherein the tank body comprises a top and a bottom along the vertical direction, a cavity is arranged in the tank body, a filter screen is arranged in the cavity, and the filter screen divides the cavity into an upper cavity and a lower cavity; wherein,

2. The sand filter tank of claim 1, further comprising an overflow tube in communication with the wastewater inlet tube.

3. The sand filter tank of claim 2, wherein the sewage inlet pipe is arranged in a horizontal direction and is communicated with the lower cavity; the overflow pipe is arranged in the vertical direction and communicated with the sewage inlet pipe, and the water outlet end of the overflow pipe faces upwards.

4. The sand filter tank of claim 1, wherein the stirring device comprises a rotating motor and a stirring rod, the rotating motor is arranged at the top of the tank body, the stirring rod is movably arranged at one end of the filter screen close to the upper cavity, the rotating motor is in driving connection with the stirring rod through a rotating shaft, and the stirring rod is driven to stir the filter layer.

5. The sand filter tank of claim 4, wherein the stirring rod is provided with a rake tooth structure.

6. The sand filter of claim 4 or 5, wherein the agitator bar is disposed adjacent to the screen.

7. The sand filter tank of claim 4, wherein a bracket is provided at a top of the tank body, and the rotating electrical machine is provided on the bracket.

8. The sand filter tank of claim 7, wherein a reinforcing ring is further provided between the bracket and the tank body.

9. The sand filter tank as claimed in claim 1, wherein the drain pipe is further connected with a drain branch pipe in a horizontal direction.

10. The sand filter tank of claim 1 wherein the filter layer is quartz sand.