CN212187942U

CN212187942U - Continuous active sand filter

Info

Publication number: CN212187942U
Application number: CN202020486047.4U
Authority: CN
Inventors: 蒋国强; 惠冰清; 卢琛
Original assignee: Jiangsu Sigai Environmental Protection Technology Co ltd
Current assignee: Jiangsu Sigai Environmental Protection Technology Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-12-22
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses an active sand filter of continuous type, which comprises a tank body, the internal inlet tube that communicates with the sand lifting pipe that is equipped with of jar, the sand washer has been cup jointed in the upper end outside of sand lifting pipe, the upper end of sand lifting pipe is connected in the inlet of air lift pump, the outside of urceolus still is equipped with the top fixed cylinder that the upper end is the opening setting, the right side bottom of the fixed cylinder in top is connected with the blow off pipe, the lower part of sand lifting pipe is connected with the sand divider through eight corner shape water-locator, two rings of air supply pipes have been installed to eight corner shape water-locator below, the air vent of air supply pipe is different angle distributions downwards, the air supply pipe communicates a jar body top. When the utility model is used, the flow of the traditional process treatment is simplified, and the occupied area is small; when the hardening phenomenon occurs, the air can be supplied to the air pipe communicated to the top of the pool, the hardened sand layer can be uniformly impacted by utilizing the air, the hardening phenomenon of the sand layer can be quickly solved, and time and labor are saved.

Description

Continuous active sand filter

Technical Field

The utility model relates to a filter technical field specifically is a continuous type active sand filter.

Background

In the initial stage of operation of a sewage plant, the quality of inlet water cannot reach the standard stably or under the condition that a mud leakage accident occurs in a secondary sedimentation tank when the sewage plant operates normally, the hardening and caking phenomena of a filtering sand layer easily occur, the hardening phenomena mainly occur in an upward sand layer of a water distribution device of equipment, the position is relatively deep, and the rapid and effective treatment is difficult.

The conventional active sand filter has no means for effectively dealing with the hardening and caking phenomena of the sand layer, once the hardening phenomena occur, a large amount of labor and time are consumed, the sand layer is stirred by compressed air for penetrating into the sand layer through an external air pipe so as to solve the hardening phenomena, the air pipe can only solve the hardening problems of the sand layer in a single point mode, and the comprehensive and effective solution cannot be realized. For this purpose, we propose a continuous type active sand filter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an active sand filter of continuous type to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an active sand filter of continuous type, includes a jar body, the internal inlet tube that communicates with the sand lifting pipe that is equipped with of jar, the sand washer has been cup jointed in the upper end outside of sand lifting pipe, the upper end of sand lifting pipe is connected in the inlet of airlift pump, the outside of airlift pump is equipped with inner tube and urceolus in proper order, the outside of urceolus still is equipped with the top fixed cylinder that the upper end is the opening setting, the right side bottom of top fixed cylinder is connected with the blow off pipe, the right-hand member of blow off pipe is the horizontality, and runs through a jar side wall, the lower part of sand lifting pipe is connected with the sand distributor through eight corner.

As a further optimization of this technical scheme, jar body bottom is equipped with the supporting leg, the inlet tube is the slope setting of low right side height in a left side, the left end of inlet tube communicates in sand lifting pipe middle part, the right-hand member of inlet tube runs through a jar lateral wall.

As a further optimization of the technical scheme, the top of the sand washer is fixedly connected with the lower end of the top fixing cylinder, and the upper end of the top fixing cylinder is fixed at the top of the inner cavity of the tank body.

Compared with the prior art, the beneficial effects of the utility model are that: when the utility model is used, the flow of the traditional process treatment is simplified, and the occupied area is small; the one-time investment is low, and a back washing pump is not needed; the efficiency is high, continuous filtration is realized, and machine halt backwashing is not needed; the depth filtration is carried out, the depth of a filter bed is 2000mm, the filtration effect is good, and the effluent quality is stable; the filter bed has small head loss; the filter material is continuously cleaned, impurities intercepted by the filter layer can be removed in time, and the impact load capacity of the inflow water quality is high; the engineering quantity is small, and the operation cost and the maintenance cost are low; the modular structure is easy to reconstruct and expand;

the conical sand separator can ensure that the sand can smoothly pass through the filtering area, and is less prone to hardening. In the below of eight corners water-locator, installed two rings of special distribution's air supply pipe, the air vent of air supply pipe distributes downwards with special angle, when taking place the phenomenon of hardening, can utilize the even sand bed that strikes of air, can solve the sand bed phenomenon of hardening fast through the air pipe air feed for communicating the pond top, labour saving and time saving.

Drawings

FIG. 1 is a schematic view of the overall side-sectional structure of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1 according to the present invention;

FIG. 4 is a schematic cross-sectional view taken at C-C of FIG. 1 according to the present invention;

fig. 5 is a schematic view of the connecting side-cut structure of the top fixing cylinder, the outer cylinder, the inner cylinder, the air lift pump, the blow-off pipe and the sand lifting pipe of the utility model.

In the figure: the device comprises a top fixing barrel 1, an outer barrel 2, an inner barrel 3, an air lift pump 4, a sand washer 5, a blow-off pipe 6, a water inlet pipe 7, a sand lifting pipe 8, a sand distributor 9, an octagonal water distributor 10, a tank body 11 and an air supply pipe 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an active sand filter of continuous type, includes a jar body 11, the internal inlet tube 7 that communicates with sand lifting pipe 8 that is equipped with of jar, sand washer 5 has been cup jointed in sand lifting pipe 8's the upper end outside, sand lifting pipe 8's upper end is connected in air lift pump 4's inlet, air lift pump 4's the outside is equipped with inner tube 3 and urceolus 2 in proper order, urceolus 2's the outside still is equipped with the top fixed cylinder 1 that the upper end is the opening setting, the right side bottom of the fixed cylinder 1 in top is connected with blow off pipe 6, the right-hand member of blow off pipe 6 is the horizontality, and runs through a jar body 11 lateral wall, sand lifting pipe 8's lower part is connected with branch sand ware 9 through eight corner.

Specifically, jar body 11 bottom is equipped with the supporting leg, inlet tube 7 is the slope setting of low right side height in a left side, the left end of inlet tube 7 communicates in 8 middle parts of sand extraction pipe, the right-hand member of inlet tube 7 runs through jar 11 lateral walls.

Specifically, the top of the sand washer 5 is fixedly connected with the lower end of the top fixing cylinder 1, and the upper end of the top fixing cylinder 1 is fixed at the top of the inner cavity of the tank body 11.

Specifically, when the filter is used, sewage enters the tank body 11 through the water inlet pipe 7, is uniformly distributed through the octagonal water distributor 10 at the bottom and then flows upwards in a countercurrent manner to pass through the filtering sand layer, and clear water after filtering overflows from the tank body 11 and enters the sewage discharge pipe 6;

the air lift pump 4 works to compress air, so that dirty sand at the bottom layer of the tank body 11 is lifted into the sand washer 5 at the top of the tank body 11, and pollutants on the surface of the sand are separated out under the turbulent action of water flow;

the cleaned sand is returned to the sand bed by gravity and the sewage produced by cleaning the sand is discharged from the sewage discharge pipe 6.

When the continuous active sand filter is used, the process of the traditional process treatment is simplified, and the occupied area is small; the one-time investment is low, and a back washing pump is not needed; the efficiency is high, continuous filtration is realized, and machine halt backwashing is not needed; the depth filtration is carried out, the depth of a filter bed is 2000mm, the filtration effect is good, and the effluent quality is stable; the filter bed has small head loss; the filter material is continuously cleaned, impurities intercepted by the filter layer can be removed in time, and the impact load capacity of the inflow water quality is high; the engineering quantity is small, and the operation cost and the maintenance cost are low; the modular structure is easy to reconstruct and expand; the special improvement is made aiming at the hardening phenomenon which often occurs in the sand layer.

The continuous active sand filter is improved through a plurality of tests, and the conical sand separator 9 with special proportion can ensure that the sand is less prone to hardening under the condition of smoothly passing through the filtering area. Two circles of air supply pipes 12 which are specially distributed are installed below the octagonal water distributor 10, air holes of the air supply pipes 12 are distributed downwards at a special angle, when the hardening phenomenon occurs, air can be supplied through air pipes communicated to the top of the pool, the air evenly impacts the hardened sand layer, the hardening phenomenon of the sand layer can be rapidly solved, and time and labor are saved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A continuous type active sand filter, includes jar body (11), its characterized in that: the sand washing device is characterized in that a water inlet pipe (7) communicated with a sand extracting pipe (8) is arranged in the tank body (11), a sand washer (5) is sleeved on the outer side of the upper end of the sand extracting pipe (8), the upper end of the sand extracting pipe (8) is connected with a liquid inlet of an air lifting pump (4), an inner cylinder (3) and an outer cylinder (2) are sequentially arranged on the outer side of the air lifting pump (4), a top fixing cylinder (1) with an open upper end is further arranged on the outer side of the outer cylinder (2), a sewage discharge pipe (6) is connected to the bottom of the right side of the top fixing cylinder (1), the right end of the sewage discharge pipe (6) is in a horizontal state and penetrates through the side wall of the tank body (11), the lower part of the sand extracting pipe (8) is connected with a sand distributor (9) through an octagonal water distributor (10), two rings of air supply pipes (12) are arranged below the water distributor (10), and air vents, the air supply pipe (12) is communicated with the top of the tank body (11).

2. A continuous activated sand filter according to claim 1, wherein: the utility model discloses a sand extracting tank, including jar body (11), inlet tube (7) are the slope setting of low right height in a left side, the left end of inlet tube (7) communicates in sand extracting pipe (8) middle part, the right-hand member of inlet tube (7) runs through jar body (11) lateral wall.

3. A continuous activated sand filter according to claim 1, wherein: the top of the sand washer (5) is fixedly connected with the lower end of the top fixing cylinder (1), and the upper end of the top fixing cylinder (1) is fixed at the top of the inner cavity of the tank body (11).