CN222709116U - Micro-filter for sewage treatment - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a microfilter for sewage treatment, including a chassis, a filter cartridge is arranged inside the chassis, a backwashing mechanism is distributed on the chassis, and the backwashing mechanism includes an oblique side washing mechanism and a sliding washing mechanism. When the backwashing mechanism of the utility model is in use, a water pump is used to extract filtered water after cleaning from the chassis, and then it is sprayed out through a high-pressure spray valve 1 to wash the residual waste residue on the filter cartridge. At this time, the rodless cylinder and the high-pressure spray valve 2 are synchronously started, and the rodless cylinder is used to drive the high-pressure spray valve 2 to move along the central axis of the filter cartridge and spray the filter cartridge with high pressure. The high-pressure water flow sprayed by the high-pressure spray valve 2 penetrates the filter cartridge and then acts on the filter residue collection tank, and the filter residue is washed twice, which is helpful to clean the residue on the filter cartridge and the filter residue remaining on the bottom wall of the filter residue collection tank, and then discharged outward through the sewage pipe, thereby improving the efficiency of residue cleaning.

Description

Micro-filter for sewage treatment

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a micro-filter for sewage treatment.

Background

The microfiltration machine is a device commonly used for sewage treatment, which can effectively remove suspended matters and partial microorganisms in water, and the device generally adopts a porous membrane as a filter medium, and intercepts solid particles in the water through a physical screening effect, so that solid-liquid separation is realized. In the field of sewage treatment, micro-filters can be used for primary treatment to remove larger solid impurities or as part of advanced treatment to further purify water quality.

The utility model discloses an automatic back flushing internal water inlet micro-filter in Chinese patent publication No. CN217829151U, belongs to the technical field of micro-filters, and mainly solves the problems that the existing internal water inlet micro-filter gathers and moves to an outlet at one end of a rotary drum to fall into a trough under the action of an internal spiral plate during working, but dirt blocked in a mesh gap of the rotary drum is difficult to scrape and clean by the spiral plate, so that the flushing quality of the internal water inlet micro-filter is limited. In view of the above related art, the inventors consider that there is a disadvantage in that, although in the above prior art, the impact ball, the pull rope and the rotating rod are provided to rotate, and the rotating rod indirectly drives the rotating drum and the pull rope to rotate together, so that the impact ball forms an impact effect on the inner wall of the rotating drum, and further the dirt adhered to the inner wall of the rotating drum in a solidified state is cracked and treated, in the practical use process of the micro-filter, since the impact ball, the pull rope and the rotating rod are all provided in the interior of the rotating drum, when the treated sewage contains a belt, the impurity is seriously entangled due to the pull rope.

The existing backwash micro-filter for sewage treatment is usually provided with a flushing structure at the top of a rotary drum or obliquely above, the flushed residues are discharged outwards through a collecting tank, the residues are discharged outwards only through the acting force of one-time backwash water, so that the residue cleaning efficiency is lower, and the use of the micro-filter is affected.

Disclosure of utility model

In order to solve the technical problems that the existing backwash micro-filter for sewage treatment is generally provided with a flushing structure fixedly arranged at the top or obliquely above a rotary drum, the flushed residues are discharged outwards through a collecting tank, and the residues are discharged outwards only through the acting force of one-time backwash water, so that the efficiency of residue cleaning is low, the utility model provides the micro-filter for sewage treatment.

The utility model adopts the following technical scheme that the micro-filter for sewage treatment comprises a machine case, a water inlet and a water outlet, wherein a filter cartridge is arranged in the machine case, a filter residue collecting tank positioned in a cartridge cavity of the filter cartridge is obliquely arranged on the side wall of an inner cavity of the machine case through a bracket, back flushing mechanisms for cleaning and flushing residual filter residues on the filter cartridge are distributed on the machine case, the back flushing mechanisms comprise an oblique side flushing mechanism and a sliding flushing mechanism, the oblique side flushing mechanism comprises a water suction pump, a connecting pipe, a drain pipe and a first high-pressure spray valve, and the sliding flushing mechanism comprises a rodless cylinder, a sliding seat, a connecting block, a corrugated pipe and a second high-pressure spray valve;

The high-pressure spray valve comprises a connecting block, a corrugated pipe, a connecting pipe, a high-pressure spray valve II and a filter cartridge, wherein the water draining pipe is located in an inner cavity of the chassis and is sealed at one end, the rodless cylinder is mounted on the side wall of the inner cavity of the chassis and is located right above the filter cartridge, the sliding block is slidably mounted on the top of the rodless cylinder, the connecting block is mounted on the top of the sliding block, the high-pressure spray valve II is symmetrically distributed and mounted on the bottom of the connecting block, one end of the corrugated pipe is communicated with the middle of the water draining pipe, and the other end of the corrugated pipe penetrates through the connecting block and is connected with the high-pressure spray valve II through a guide pipe.

Preferably, the water pump is installed at the rear end of the case through a support plate, the input end of the water pump is communicated with the bottom wall of the inner cavity of the case through a support pipe, the connecting pipe is connected to the output end of the water pump, and the connecting pipe is communicated with the other end of the drain pipe.

Preferably, a drain pipe and a water inlet are arranged at the front end of the case, one end of the drain pipe penetrates through the front end of the filter residue collecting tank, and a water outlet is arranged at the rear end of the case.

Preferably, a plurality of groups of fixing blocks are distributed and installed on the side wall of the inner cavity of the case, the fixing blocks are connected with the periphery of the filter cylinder in a sliding mode, a motor is installed at the front end of the case, and the output end of the motor penetrates through the front end of the case.

Preferably, the front end of the filter cylinder is provided with a connecting cylinder, teeth are annularly distributed on the periphery of the connecting cylinder, and the output end of the motor drives the connecting cylinder to rotate through a toothed chain.

Preferably, the bottom of the case is provided with supporting legs.

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

The utility model is provided with a back flushing mechanism formed by combining an oblique side flushing mechanism and a sliding flushing mechanism, when the filter is used, filtered water after cleaning treatment is extracted from a chassis by utilizing a water pump, and then the filtered water is sprayed out by a first high-pressure spray valve to flush residual waste residues on a filter cartridge, at the moment, a rodless cylinder and a second high-pressure spray valve are synchronously started, the second high-pressure spray valve is driven by the rodless cylinder to move along the central axis of the filter cartridge and spray the filtered cartridge at high pressure, and as the oblique side flushing mechanism has preliminarily cleaned residues on the surface of the filter cartridge, the high-pressure water sprayed by the second high-pressure spray valve penetrates the filter cartridge and then acts on a filter residue collecting tank to flush the filter residue for the second time, so that the residues on the filter cartridge and the filter residue remained on the inner bottom wall of the filter residue collecting tank are cleaned, and then discharged outwards by a drain pipe, the efficiency of residue cleaning is improved, and the practicability of the micro-filter for integral sewage treatment is improved.

Drawings

FIG. 1 is a schematic view of the overall structure provided by the present utility model;

FIG. 2 is a schematic side cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a backwash mechanism of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2 at A;

Fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

The device comprises a chassis 1, a water inlet 2, a water inlet 3, a filter cartridge 4, a water outlet 5, a water suction pump 6, a fixed block 7, a connecting pipe 8, a water discharge pipe 9, a high-pressure spray valve I10, a rodless cylinder 11, a sliding seat 12, a connecting block 13, a corrugated pipe 14, a high-pressure spray valve II, a filter residue collecting tank 15, a filter residue collecting tank 16, a drain pipe 17, a motor 18, a connecting pipe 19 and a supporting leg.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Referring to fig. 1-5, the micro-filter for sewage treatment in this embodiment includes a chassis 1, a water inlet 2 and a water outlet 4, a supporting leg 19 is installed at the bottom of the chassis 1, a filter cartridge 3 is disposed in the chassis 1, multiple groups of fixing blocks 6 are distributed on the side wall of an inner cavity of the chassis 1, the fixing blocks 6 are slidably connected with the periphery of the filter cartridge 3, a motor 17 is installed at the front end of the chassis 1, an output end of the motor 17 penetrates through the front end of the chassis 1, a connecting cylinder 18 is installed at the front end of the filter cartridge 3, teeth are annularly distributed on the periphery of the connecting cylinder 18, and the output end of the motor 17 drives the connecting cylinder 18 to rotate through a toothed chain;

Further, a filter residue collecting groove 15 positioned in the barrel cavity of the filter barrel 3 is obliquely arranged on the side wall of the inner cavity of the machine case 1 through a bracket, a back flushing mechanism for cleaning and flushing residual filter residues on the filter barrel 3 is distributed on the machine case 1, a drain pipe 16 and a water inlet 2 are arranged at the front end of the machine case 1, one end of the drain pipe 16 penetrates through the front end of the filter residue collecting groove 15, and a water outlet 4 is arranged at the rear end of the machine case 1;

further, the back flushing mechanism comprises an inclined side flushing mechanism and a sliding flushing mechanism, the inclined side flushing mechanism is formed by combining a water suction pump 5, a connecting pipe 7, a drain pipe 8 and a high-pressure spray valve I9, wherein the water suction pump 5 is arranged at the rear end of the case 1 through a support plate, the input end of the water suction pump 5 is communicated with the bottom wall of the inner cavity of the case 1 through a branch pipe, one end of the drain pipe 8 is closed and positioned in the inner cavity of the case 1, the connecting pipe 7 is connected to the output end of the water suction pump 5, and the other ends of the connecting pipe 7 and the drain pipe 8 are communicated with each other;

Further, when the filter cartridge 3 rotates for filtering, the water pump 5 is utilized to pump the filtered water from the machine case 1 through the branch pipe, the filtered water is conveyed into the drain pipe 8 through the connecting pipe 7, finally the filtered water is sprayed out through the first high-pressure spray valves 9, the plurality of groups of the first high-pressure spray valves 9 are utilized to aim at the filter cartridge 3 for high-pressure spraying, the impact force of the filtered water spraying is utilized to flush the residual waste residue on the filter cartridge 3, and the influence on the filtering process caused by accumulation of impurities such as residues on the inner surface of the filter cartridge 3 is avoided;

Further, the sliding flushing mechanism is formed by combining a rodless cylinder 10, a sliding seat 11, a connecting block 12, a corrugated pipe 13 and a second high-pressure spray valve 14, wherein the rodless cylinder 10 is arranged on the side wall of an inner cavity of the case 1 and is positioned right above the filter cylinder 3, the sliding seat 11 is slidably arranged on the top of the rodless cylinder 10, the connecting block 12 is arranged on the top of the sliding seat 11, a plurality of groups of second high-pressure spray valves 14 are symmetrically arranged at the bottom of the connecting block 12, one end of the corrugated pipe 13 is communicated with the middle part of the drain pipe 8, and the other end of the corrugated pipe 13 penetrates through the connecting block 12 and is connected with the second high-pressure spray valve 14 through a conduit;

Further, the residue after washing via the first high-pressure spray valve 9 falls into the residue collecting tank 15 for collection, and the residue collecting tank 15 is installed in an inclined manner, the residue is discharged outwards through the drain pipe 16, at this time, the rodless cylinder 10 and the second high-pressure spray valve 14 are synchronously started, the sliding seat 11 is driven by the rodless cylinder 10 to perform circular reciprocating linear motion, and then the connecting block 12 and the second high-pressure spray valve 14 are driven to perform reciprocating linear motion at the top of the filter cartridge 3, the corrugated pipe 13 automatically stretches or contracts along with the movement of the connecting block 12 so as to meet the requirement of use, the second high-pressure spray valve 14 can move along the central axis of the filter cartridge 3 and perform high-pressure spray to the filter cartridge 3, and because the oblique side flushing mechanism is used for preliminarily cleaning the residue on the surface of the filter cartridge 3, the high-pressure water flow sprayed by the second high-pressure spray valve 14 penetrates the filter cartridge 3 and then acts on the filter residue collecting tank 15, secondary flushing is performed on the residue, residues on the filter cartridge 3 and the residue in the filter cartridge collecting tank 15 are cleaned, the residue cleaning efficiency is improved, and the practicability of the whole micro-filter for sewage treatment is improved.

The sewage to be filtered enters the inner cavity of the filter cartridge 3 through the water inlet 2, the filtered water flows into the inner cavity of the machine case 1 and then flows out through the water outlet 4 to convey clean water, the filter cartridge 3 rotates and filters, meanwhile, filtered water is extracted from the machine case 1 through the branch pipe by the water suction pump 5 and sprayed out through the first high-pressure spray valve 9, residual waste residue on the filter cartridge 3 is washed, the washed residue falls into the obliquely-installed residue collecting tank 15 to be collected, and is discharged out through the drain pipe 16, at the moment, the rodless cylinder 10 and the second high-pressure spray valve 14 are synchronously started, the rodless cylinder 10 is utilized to drive the second high-pressure spray valve 14 to move along the central axis of the filter cartridge 3 and spray high pressure to the filter cartridge 3 through the cooperation of the slide seat 11 and the connecting block 12, and the high-pressure water flow sprayed by the second high-pressure spray valve 14 penetrates through the filter cartridge 3 and then acts on the residue collecting tank 15 to wash the residue on the surface of the filter cartridge 3 for the second time, the residue on the filter cartridge 3 and the residue collecting tank 15 is favorable for residue cleaning the residue on the filter cartridge and the residue collecting tank 15, the residue is left on the inner bottom wall of the filter cartridge 15, the whole filter is cleaned, the efficiency of the residue is improved, and the practicability of the micro-filter is improved.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (6)

1. The micro-filter for sewage treatment comprises a machine case (1), a water inlet (2) and a water outlet (4), and is characterized in that a filter cartridge (3) is arranged in the machine case (1), a filter residue collecting tank (15) positioned in a cartridge cavity of the filter cartridge (3) is obliquely arranged on the side wall of an inner cavity of the machine case (1) through a bracket, backwash mechanisms for cleaning and flushing filter residues remained on the filter cartridge (3) are distributed on the machine case (1), each backwash mechanism comprises an oblique side flushing mechanism and a sliding flushing mechanism, each oblique side flushing mechanism comprises a water suction pump (5), a connecting pipe (7), a drain pipe (8) and a first high-pressure spray valve (9), and each sliding flushing mechanism comprises a rodless cylinder (10), a sliding seat (11), a connecting block (12), a corrugated pipe (13) and a second high-pressure spray valve (14);

The novel high-pressure spray valve comprises a cabinet (1), a water draining pipe (8), a rodless cylinder (10), a sliding seat (11), a connecting block (12), a plurality of groups of high-pressure spray valves II (14) and a corrugated pipe (13), wherein the water draining pipe (8) is located in an inner cavity of the cabinet (1) and is sealed at one end, the rodless cylinder (10) is installed on the side wall of the inner cavity of the cabinet (1) and is located right above a filter cylinder (3), the sliding seat (11) is slidably installed at the top of the rodless cylinder (10), the connecting block (12) is installed at the top of the sliding seat (11), the high-pressure spray valves II (14) are symmetrically distributed and installed at the bottom of the connecting block (12), one end of the corrugated pipe (13) is communicated with the middle of the water draining pipe (8), and the other end of the corrugated pipe penetrates through the connecting block (12) and is connected with the high-pressure spray valve II (14).

2. The micro-filter for sewage treatment according to claim 1, wherein the water pump (5) is mounted at the rear end of the chassis (1) through a support plate, the input end of the water pump (5) is communicated with the bottom wall of the inner cavity of the chassis (1) through a branch pipe, the connecting pipe (7) is connected to the output end of the water pump (5), and the other end of the connecting pipe (7) is communicated with the other end of the drain pipe (8).

3. The micro-filter for sewage treatment according to claim 1, wherein a drain pipe (16) and a water inlet (2) are installed at the front end of the chassis (1), one end of the drain pipe (16) penetrates through the front end of the filter residue collecting tank (15), and a water outlet (4) is installed at the rear end of the chassis (1).

4. The micro-filter for sewage treatment according to claim 1, wherein a plurality of groups of fixed blocks (6) are distributed and installed on the side wall of the inner cavity of the case (1), the fixed blocks (6) are slidably connected with the periphery of the filter cartridge (3), a motor (17) is installed at the front end of the case (1), and the output end of the motor (17) penetrates through the front end of the case (1).

5. The micro-filter for sewage treatment according to claim 4, wherein the front end of the filter cartridge (3) is provided with a connecting cylinder (18), teeth are annularly distributed on the periphery of the connecting cylinder (18), and the output end of the motor (17) drives the connecting cylinder (18) to rotate through a toothed chain.

6. The micro-filter for sewage treatment according to claim 1, wherein the bottom of the chassis (1) is provided with supporting legs (19).