CN218529910U - Automatic backwashing device suitable for filtering sewage with different turbidity degrees - Google Patents

Abstract

The utility model provides a filterable automatic back flush device of different turbidity sewage of adaptation, including the casing of its interior zone cavity, a serial communication port, the casing cavity comprises the circular slot of outlying annular and center department, divide or divide equally for separating into a plurality of fan-shaped filter tanks through the baffle in the annular, every fan-shaped filter tank intussuseption is filled with the same or inequality filter material layer, slope filter screen and backwash water pipe are established to filter material layer bottom, the filter material row mouth is established to the lateral wall, the inlet is established at the top of every fan-shaped filter tank, the filter tank of taking the filtrate discharge port is established to the bottom, the backwash water export of taking the ball-cock assembly is established on inner wall upper portion, the backwash water export is located the circular slot of center department, the circular slot bottom links to each other through lower backwash water pipe and outside backwash water tank, backwash water tank delivery port and its upper band outlet valve, the last backwash water pipe of pressure boost valve links to each other, it links to go up backwash water pipe through the hose and the backwash water pipe of fan-shaped filter tank layer bottom links to each other. Filtering and backwashing.

Description

Automatic backwashing device suitable for filtering sewage with different turbidity degrees

Technical Field

The utility model relates to a filter equipment, especially an adapt to filterable automatic back-flush unit of different turbidity sewage, water treatment facilities design and manufacturing technical field.

Background

When carrying out necessary filtration treatment to ordinary industrial sewage, river, lake water, because the turbidity of water is unstable, can be in different times such as flood season increase, dry season reduce, and prior art's filtration equipment's filtering material is mostly a specification, can only carry out filtration treatment to a turbidity water during the use, leads to: when sewage with low turbidity is filtered, the problems of large horse pulling a trolley, cost increase and waste of filtering materials due to strong filtering capability can be caused; when sewage with high turbidity is filtered, the filtering effect and the filtering efficiency are influenced due to small filtering capacity; if the filtering effect and efficiency are required to be ensured and the filtering material needs to be frequently replaced or cleaned, the existing filtering equipment cannot automatically back flush the filtering material, so that the cost is increased and the working efficiency is influenced. Therefore, there is a need for improvements in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a filtering device which can filter sewage with different turbidity degrees and can automatically carry out back washing on filter materials.

The utility model discloses a following technical scheme accomplishes: an automatic back-flushing device suitable for filtering sewage with different turbidity degrees comprises a shell with a cavity therein, and is characterized in that the cavity of the shell comprises a peripheral annular groove and a circular groove at the center, the annular groove is divided into a plurality of fan-shaped filter grooves by partition plates in equal or unequal intervals, the same or different filter material layers are filled in each fan-shaped filter groove, the bottom of each filter material layer is provided with an inclined filter screen and a back-flushing water pipe, the side wall is provided with a filter material discharge port, the top of each fan-shaped filter groove is provided with a liquid inlet, the bottom of each fan-shaped filter groove is provided with a filter liquid groove with a filter liquid discharge port, the upper part of the inner wall is provided with a back-flushing water outlet with a floating ball valve, the back-flushing water outlet is positioned in the circular groove at the center, the bottom of the circular groove is connected with an external back-flushing water tank through a lower back-flushing water pipe, the water outlet of the back-flushing water tank is connected with an upper back-flushing water pipe with a water outlet valve and a pressurizing valve, the upper back-flushing water pipe is selectively connected with the back-flushing water pipe at the bottom of the corresponding fan-shaped filter groove through a hose,

so that the water to be filtered is sent into the corresponding fan-shaped filter tanks according to different turbidities, passes through the filter material layer to enable the turbidities in the water to be absorbed and filtered by the filter material, then enters the filter liquid tank below, and is discharged through the filter liquid outlet to finish the filtration of the turbid sewage, thus finishing the filtration of the sewage corresponding to the turbidities from tank to tank; when the filter material layer adsorbs enough dirt to block the filtering process, the water entering the fan-shaped filter tank is increased, so that the water level rises above the backwashing water outlet, the backwashing water outlet is opened through the ball float valve, the water flows into the circular tank and is sent into the backwashing water tank through the lower backwashing water pipe at the bottom of the circular tank to form a backwashing water source, then the backwashing water source is sent into the lower part of the filter material layer of the fan-shaped filter tank through the water outlet of the backwashing water tank and the upper backwashing water pipe with the water outlet valve and the pressure increasing valve, the hose and the backwashing water pipe, so as to backwash the filter material layer, and the flushing liquid flows into the circular tank again when rising to the backwashing water outlet, and the operation is circulated until the automatic backwashing of the filter material layer is completed.

The filter material discharge opening is connected with a discharge pipe with a control valve, so that the filter material which is out of work can be conveniently discharged, and then a new filter material is refilled.

The filter material layer in the fan-shaped filter tank is filled by conventional sand, stone and active carbon according to layers, and the sand layer, the stone layer and the active carbon layer with different particle sizes are selected according to different sewage turbidities for filling so as to meet the requirements of filtering sewage with different turbidities.

The upper side of the pipe wall of the back flushing pipe at the lower part of the filter material layer of the fan-shaped filter tank is provided with a plurality of through holes to form a back flushing water outlet so as to carry out back flushing on the filter material layer at the upper part.

The bottom of the shell is provided with a plurality of support columns at intervals, the tops of the support columns are connected with the bottom of the shell, and the bottoms of the support columns are fixed on the mounting seat, so that the shell is supported.

The utility model has the advantages of it is following and effect: by adopting the technical scheme, the corresponding filtering materials can be matched aiming at the sewage with different turbidity degrees, so that the sewage with different turbidity degrees can be filtered, the cost is reduced to the maximum extent, and the filtering effect and the filtering efficiency are improved; when the filter material layer adsorbs enough dirt to block the filtering process, the water level rises above the backwashing water outlet, the backwashing water outlet is opened by the ball float valve, so that water flows into the circular groove and then is sent into the backwashing water tank to form a backwashing water source, the backwashing water is sent into the lower part of the filter material layer of the fan-shaped filter tank through the backwashing water tank water outlet, the upper backwashing water pipe with the water outlet valve and the booster valve, the hose and the backwashing water pipe, so as to backwash the filter material layer, and when the flushing water rises to the backwashing water outlet, the flushing water flows into the circular groove again, and the circulation is carried out until the automatic backwashing of the filter material layer is completed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the housing of fig. 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model provides an automatic back flush device that adapts to different turbidity sewage filtrations, casing 6 including its interior zone cavity, casing 6 cavity comprises peripheral annular and the circular slot 9 of center department, divide equally for separating into eight fan-shaped filter tanks 18 through eight baffles 19 that the interval set up in the annular, every fan-shaped filter tank 18 intussuseption is filled with the same filter bed 5, filter bed 5 bottom is established the slope filter screen and is washed against water pipe 4, the lateral wall is established the filter material and arranges mouthful 3, the inlet 7 is established at the top of every fan-shaped filter tank 18, the filter tank 17 of taking filtrate discharge port 2 is established to the bottom, the back flush water export of taking ball-cock assembly 8 is established on inner wall upper portion, this back flush water export is located the circular slot 9 of center department, this circular slot 9 bottom is linked to each other through lower back flush water pipe 16 and outside back flush water tank 13, back flush water tank 13 delivery port is linked to the last back flush water pipe that takes outlet valve 14, the booster valve 15, it is linked to go against the flush water pipe 4 to go against the upper side of water pipe through hose 11 selectively with the filter tank 18 bottom of the corresponding fan-basin, it forms a plurality of back flush water outlet to carry out on the back flush water pipe 4, it to carry on to form the filter bed to go against the back flush water outlet; the bottom of the back flushing tank 13 is provided with a water outlet which returns to the liquid inlet 7 at the top of the fan-shaped filter tank 18 through a pipeline;

the filter material discharge port 3 is connected with a discharge pipe with a control valve so as to conveniently discharge the invalid filter material and then refill a new filter material;

the filter material layer 5 in the fan-shaped filter tank 18 is filled with conventional sand, stone and activated carbon according to layers, and the sand layer, the stone layer and the activated carbon layer with different particle sizes are selected to be filled according to different sewage turbidities so as to meet the requirements of filtering sewage with different turbidities;

the bottom of the shell 6 is provided with a plurality of support columns 1 at intervals, the tops of the support columns 1 are connected with the bottom of the shell 6, and the bottoms of the support columns are fixed on the mounting seat, so that the shell can be supported.

When the device works, water to be filtered is sent into the corresponding fan-shaped filter tanks 18 according to different turbidities, passes through the filter material layer 5 to enable turbidities in the water to be absorbed and filtered by filter materials, enters the filter liquid tank 17 below, and is discharged through the filter liquid outlet 2 to finish the filtration of the turbid sewage, so that the filtration of the sewage corresponding to the turbidities is finished tank by tank; when the filter material layer 5 adsorbs enough dirt to block the filtering process, the water entering the fan-shaped filter tank 18 increases, when the water level rises above the backwashing water outlet, the backwashing water outlet is opened through the ball float valve 8, the water flows into the circular tank 9 and is sent into the backwashing water tank 13 through the lower backwashing water pipe 16 at the bottom of the circular tank to form a backwashing water source, and then the backwashing water is sent into the lower part of the filter material layer 5 of the fan-shaped filter tank 18 through the backwashing water outlet of the backwashing water tank and the upper backwashing water pipe with the water outlet valve 14 and the pressure increasing valve 15, the hose 11 and the backwashing water pipe 4 to perform backwashing on the filter material layer 5, and when the flushing water rises to the backwashing water outlet, the flushing water flows into the circular tank 9 again, and the process is circulated until the automatic backwashing of the filter material layer 5 is completed.

Claims (5)

1. The automatic back flushing device suitable for filtering sewage with different turbidity degrees comprises a shell with a cavity therein, and is characterized in that the cavity of the shell is composed of a peripheral annular groove and a circular groove at the center, the annular groove is divided into a plurality of fan-shaped filter tanks by partition plates in an equal or unequal manner, the same or different filter material layers are filled in each fan-shaped filter tank, the bottom of each filter material layer is provided with an inclined filter screen and a back flushing water pipe, the side wall of each filter tank is provided with a filter material discharge port, the top of each fan-shaped filter tank is provided with a liquid inlet, the bottom of each fan-shaped filter tank is provided with a filter liquid tank with a filter liquid discharge port, the upper part of the inner wall of each fan-shaped filter tank is provided with a back flushing water outlet with a floating ball valve, the back flushing water outlet is positioned in the circular groove at the center, the bottom of the circular groove is connected with an external back flushing water tank through a lower back flushing water pipe, the water outlet of the back flushing water tank is connected with an upper back flushing water pipe with a water outlet valve and a booster valve, and the upper back flushing water pipe is connected with the back flushing water pipe at the bottom of the filter material layers of the fan-shaped filter tanks through a hose.

2. The automatic back washing device for filtering sewage with different turbidity degrees as claimed in claim 1, wherein a discharge pipe with a control valve is connected to the filter material discharge port.

3. The automatic backwashing device for filtering sewage according to claim 1, wherein the filter material layer in the fan-shaped filter tank is filled with sand, stone and activated carbon according to layers, and the sand layer, the stone layer and the activated carbon layer with different particle sizes are selected according to different sewage turbidities for filling.

4. The automatic back washing device adapting to the filtration of sewage with different turbidities as claimed in claim 1, characterized in that a plurality of through holes are arranged on the upper side of the pipe wall of the back washing water pipe at the lower part of the filter material layer of the fan-shaped filter tank to form a back washing water outlet.

5. The automatic backwashing device for filtering sewage with different turbidities as claimed in claim 1, wherein a plurality of supporting columns are arranged at intervals at the bottom of the casing, the tops of the supporting columns are connected with the bottom of the casing, and the bottom of the supporting columns is fixed on the mounting seat.

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