CN106731134B - Sewage treatment machine capable of automatically cleaning filter element assembly - Google Patents
Sewage treatment machine capable of automatically cleaning filter element assembly Download PDFInfo
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- CN106731134B CN106731134B CN201710108051.XA CN201710108051A CN106731134B CN 106731134 B CN106731134 B CN 106731134B CN 201710108051 A CN201710108051 A CN 201710108051A CN 106731134 B CN106731134 B CN 106731134B
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- filter element
- element assembly
- filter
- cleaning
- sewage
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- 238000004140 cleaning Methods 0.000 title claims abstract description 66
- 239000010865 sewage Substances 0.000 title claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000004064 recycling Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000011324 bead Substances 0.000 claims description 33
- 238000011084 recovery Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims 8
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/885—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices with internal recirculation through the filtering element
Abstract
The application relates to a sewage treatment machine capable of automatically cleaning a filter element assembly, which comprises a frame, a filter cartridge, a filter element assembly, a water pump, a sewage inlet pipe, a recycling bin, a drain pipe, a cleaning system, a monitoring system and a control system, wherein the recycling bin is positioned below the filter cartridge and communicated with the filter cartridge through the drain pipe, the cleaning system is used for carrying out online reverse air cleaning on the filter element assembly, the monitoring system is used for monitoring the use state of the filter element assembly, the monitoring system feeds back the obtained information to the control system, the control system evaluates and gives instructions to the water pump and the cleaning system, the water pump stops supplying water, the water outlet of the filter element assembly is closed, the cleaning system cleans the filter element assembly, and meanwhile, dirt is discharged from the drain pipe to the recycling bin. The application can automatically start the cleaning system according to the use requirement, clean and drain the filter element assembly, and simultaneously can automatically and circularly carry out a whole set of processes of filtering, cleaning and draining, and the whole treatment period does not need manual operation, and has high efficiency and low cost.
Description
Technical Field
The application belongs to the field of sewage treatment equipment, and particularly relates to a sewage treatment machine capable of automatically cleaning a filter element assembly.
Background
As is well known, the sewage treatment machine mainly separates particles and harmful impurities in sewage from water through the filter element assembly, so that the separated water can meet the requirement of continuous use, and therefore, the filter element assembly is very important.
Most of the existing filter element assemblies are analyzed from the efficiency and effect of water outlet of machine equipment, and once the production requirement is lower, the periphery of the filter element assemblies are blocked, then the machine equipment is stopped, and the filter element assemblies are removed for replacement or cleaning.
Obviously, the above-described machine device has the following significant drawbacks:
1) The machine equipment can not be cleaned on line, so that the machine equipment is repeatedly stopped and started, the actual working efficiency is affected, and the service life of the machine equipment is greatly reduced.
2) The filter element assembly is inconvenient to replace, so that the working strength of operators is increased, the cost of sewage treatment is obviously increased, and in short, the filter element assembly is labor-consuming and time-consuming.
Disclosure of Invention
In order to overcome the defects in the prior art, the application aims to provide an improved sewage treatment machine capable of automatically cleaning a filter element assembly. It can start cleaning system by oneself according to the user demand, washs and blowdown to filter core subassembly, can also automatic and endless filter simultaneously, wash, blowdown a whole set of flow, need not manual operation during whole processing, efficient, with low costs.
In order to achieve the above object, the application provides a sewage treatment machine capable of automatically cleaning a filter element assembly, which comprises a frame, a filter cartridge arranged on the frame, the filter element assembly arranged in the filter cartridge, a water pump and a sewage inlet pipe for pumping sewage into the filter cartridge, a recycling bin arranged below the filter cartridge and communicated with the filter cartridge through a drain pipe, a drain pipe communicated with a water outlet of the filter element assembly, a cleaning system for performing online back air cleaning on the filter element assembly, a monitoring system for monitoring the use state of the filter element assembly, and a control system, wherein the monitoring system feeds the obtained information back to the control system, the control system evaluates and gives instructions to the water pump and the cleaning system, the water pump stops supplying water, the water outlet of the filter element assembly is closed, the cleaning system cleans the filter element assembly, and meanwhile, sewage is discharged from the drain pipe to the recycling bin.
Preferably, the monitoring system comprises a pressure detector arranged on the filter cartridge for detecting the pressure of the sewage in the filter cartridge, wherein the pressure detector is provided with a rated value, and when the pressure of the sewage in the filter cartridge exceeds the rated value, the control system stops the water supply of the water pump and starts the cleaning system to work. In short, the membrane flux of the filter element assembly is determined according to the pressure of water, and then whether the filter element assembly needs cleaning or not can be directly reflected by the membrane flux, so that the cleaning system is automatically started.
Or the monitoring system comprises a time timer, wherein the time timer is provided with a rated value, when the water pump works, the time timer starts to count down, and when the time timer shows zero, the control system stops the water supply of the water pump and starts the cleaning system to work. Briefly, the cartridge assembly is automatically cleaned on a periodic basis.
According to a specific implementation and preferred aspect of the present application, the filter element assembly comprises a plurality of filter elements arranged along the height direction of the filter cartridge, wherein the interior of each filter element is arranged in a hollow manner, a seal head is arranged at the lower end part of each filter element, and the water outlet is positioned at the top of the filter element.
Preferably, a valve stopping bead is arranged in the hollow cavity inside each filter element, and plugs the end part where the end socket is located under the action of dead weight.
Specifically, the check valve beads can be arranged in the hollow cavity in a vertically movable manner along the length direction of the hollow cavity, and when the hollow cavity is cleaned, gas pushes the check valve beads open, pushes the check valve beads away from the plug head and extrudes water in the hollow cavity; when the air supply is stopped, the check valve beads can automatically return to the original position under the action of dead weight and block the air supply channel. The purpose of using a check valve bead in this example is two: 1) Blocking the air supply channel to prevent water leakage; 2) The instant pressure is enhanced, the impact force is improved, and the cleaning of the filter element is facilitated.
Further, the valve stop beads extend along the length direction of the hollow cavity and are in clearance fit with the inner wall of the hollow cavity.
Specifically, the valve stopping bead comprises a body extending along the length direction of the hollow cavity and hemispheres positioned at two ends of the body, wherein the sphere center of the hemispheroids is attached to the center of the end face of the body, and the diameter of the body is equal to that of the hemispheroids.
Preferably, be equipped with air inlet channel and the air cock that is linked together on the head, cleaning system includes the air supply unit that is controlled by control system, is used for the trachea that is linked together air supply unit and air cock, and when wasing, the delivery port of filter core is closed, and the air gets into in the cavity and the thrust valve pearl upward movement of stopping of pushing from the air inlet channel of head, under the extrusion of valve pearl, the water that is located in the cavity is along the lateral wall of filter core outwards diffusion in the twinkling of an eye, realizes the washing of every filter core lateral wall.
Further, the air supply units are arranged at intervals for air supply, when the check valve beads are abutted against the water outlet of the filter element, the air supply units stop air supply, the check valve beads fall back to the original position under the action of dead weight, sewage on the outer wall of the filter element is filtered into the hollow cavity, the air supply units supply air again, and the operation is repeated in such a way so that the filter element recovers the membrane flux.
According to one specific implementation and preferred aspect of the application, the upper end parts of the filter elements are arranged in a flush way, the lower end parts form a frustum with the outer diameter gradually reduced from top to bottom by taking the filter element in the middle part as the center, a conical discharging hopper is arranged at the bottom of the frustum, one end part of the drain pipe is communicated with a discharge hole of the conical discharging hopper, and the other end part of the drain pipe is communicated with the recycling bin. The upper end part is arranged flush to facilitate the convergence and communication of the water outlets; the arrangement of the lower end part enables the lengths of the hollow cavities to be unequal, so that mutual interference among a plurality of filter elements is reduced during cleaning, the cleaning effect is improved, and meanwhile, the concentrated guiding and discharging of filtered residues are facilitated.
Preferably, a filter screen component is further arranged in the recycling bin, and the sewage treatment machine further comprises a recycling pipe for communicating filtrate in the recycling bin with the sewage inlet pipe. The filter screen component filters the particles, sundries and other harmful substances after cleaning and filtering, the filtrate continuously flows into the filter cartridge for filtering again, and resources are fully utilized, especially in the environment of water source shortage.
In addition, the processor also comprises a concentrated water outlet pipe communicated with the water outlet of the filter element assembly; the circulating water pipe is used for communicating the drain pipe with the recycling bin; and electromagnetic valves respectively arranged on the drain pipe, the concentrated water outlet pipe, the circulating water pipe, the recovery pipe and the sewage discharge pipe, wherein the electromagnetic valves are communicated with the control system, and the control system controls the electromagnetic valves to be opened or closed so as to realize filtration, sewage discharge and sewage discharge recovery.
Compared with the prior art, the application has the following advantages:
the application can automatically start the cleaning system according to the use requirement, clean and drain the filter element assembly, and simultaneously can automatically and circularly carry out a whole set of processes of filtering, cleaning and draining, and the whole treatment period does not need manual operation, and has high efficiency and low cost.
Drawings
FIG. 1 is a schematic front view of a sewage treatment machine according to the present application;
FIG. 2 is a schematic perspective view of the cartridge assembly of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the filter cartridge assembly and filter cartridge of FIG. 1;
FIG. 4 is a schematic cross-sectional view (enlarged) of the structure of each of the cartridges of FIG. 3;
in the accompanying drawings: 1. a frame; 2. a filter cartridge; 3. a filter element assembly; 30. a filter element; 30a, a hollow cavity; 30b, a water outlet; 31. a seal head; 31a, an air intake passage; 32. a valve stop bead; 320. a body; 321. a hemisphere; 4. a water pump; 5. a sewage inlet pipe; 6. a blow-down pipe; 7. a recycling bin; 70. a screen assembly; 8. a drain pipe; 9. a cleaning system; 90. an air supply unit; 91. an air pipe; 10. a monitoring system; 100. a pressure detector; 11. a control system; 12. a conical blanking hopper; 13. a recovery pipe; 14. concentrating a water outlet pipe; 15. a circulating water pipe; k1 K2, K3, K4, K5 and electromagnetic valves; x, air cock.
Detailed Description
The preferred embodiments of the present application will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the present embodiment relates to a sewage treatment machine capable of cleaning a filter element assembly by itself, which comprises a frame 1, a filter cartridge 2 located on the frame 1, a filter element assembly 3 located in the filter cartridge 2, a water pump 4 and a sewage inlet pipe 5 for pumping sewage into the filter cartridge 2, a recovery tank 7 located below the filter cartridge 2 and communicated with the filter cartridge 2 through a drain pipe 6, a drain pipe 8 communicated with a water outlet of the filter element assembly 3, a cleaning system 9 for performing on-line back air cleaning on the filter element assembly 3, a monitoring system 10 for monitoring the use state of the filter element assembly 3, and a control system 11, wherein the information obtained by the monitoring system 10 is fed back to the control system 11, and then the control system 11 evaluates and gives instructions to the water pump 4 and the cleaning system 9, the water pump 4 stops supplying water, the water outlet of the filter element assembly 3 is closed, the cleaning system 9 cleans the filter element assembly 3, and simultaneously the sewage is discharged from the drain pipe to the recovery tank 7.
Specifically, there are two embodiments of the monitoring system 10, which are described in detail below:
the monitoring system 10 comprises a pressure detector 100 arranged on the filter cartridge 2 for detecting the pressure of the sewage in the filter cartridge 2, wherein the pressure detector 100 is provided with a rated value, and when the pressure of the sewage in the filter cartridge 2 exceeds the rated value, the control system stops the water supply of the water pump 4 and starts the cleaning system 9 to work. In short, the membrane flux of the filter element assembly 3 is determined according to the pressure of water, and then whether the filter element assembly 3 needs cleaning or not can be directly reflected by the membrane flux, so that the cleaning system is automatically started.
Alternatively, the monitoring system 10 includes a time timer, wherein the time timer is rated, and when the water pump is operating, the time timer begins to count down, and when the time timer is displayed as zero, the control system stops the water pump from supplying water and starts the cleaning system to operate. Briefly, the cartridge assembly is automatically cleaned on a periodic basis.
In this example, the former is employed by the monitoring system.
Meanwhile, specifically, the filter element assembly 3 comprises a plurality of filter elements 30 arranged along the height direction of the filter cartridge 2, wherein each filter element 30 is arranged in a hollow manner, a seal head 31 is arranged at the lower end part of each filter element 30, and the water outlet is positioned at the top of the filter element 30.
Further, a valve stopping bead 32 is arranged in the hollow cavity 30a inside each filter element 30, and the valve stopping bead 32 plugs the end part where the seal head 31 is located under the action of dead weight.
Specifically, the valve stopping bead 32 is disposed in the hollow cavity 30a so as to be capable of moving up and down along the length direction of the hollow cavity 30a, and when the cleaning is performed, the gas pushes the valve stopping bead away from the plug head and presses water in the hollow cavity; when the air supply is stopped, the check valve beads can automatically return to the original position under the action of dead weight and block the air supply channel. The purpose of using a check valve bead in this example is two: 1) Blocking the air supply channel to prevent water leakage; 2) The instant pressure is enhanced, the impact force is improved, and the cleaning of the filter element is facilitated.
Further, the check valve bead 32 extends along the longitudinal direction of the hollow chamber 30a and is disposed in clearance fit with the inner wall of the hollow chamber 30 a.
Specifically, the valve stop bead 32 includes a body 320 extending along a length direction of the hollow cavity 30a, and hemispheres 321 located at two ends of the body 320, wherein a center of the hemispheroid 321 is attached to a center of an end surface of the body 320, and a diameter of the body 320 is equal to a diameter of the hemispheroid 321.
In this example, an air inlet channel 31a and an air tap X are disposed on the seal head 31, the cleaning system 9 includes an air supply unit 90 controlled by the control system 11, and an air pipe 91 for communicating the air supply unit with the air tap X, specifically, the air pipe extends into the canister from the top of the filter canister 2, and then is communicated with the air inlet channel 31a from the bottom of the canister upwards.
Further, a connector with multiple branches is adopted and is correspondingly connected to the air tap, so that the main port is connected with the air pipe 91 in a butt joint mode.
Specifically, the upper end portions of the filter elements 30 are arranged flush, the lower end portions form a frustum with the outer diameter gradually smaller from top to bottom by taking the filter element 30 in the middle as the center, a conical discharging hopper 12 is arranged at the bottom of the frustum, one end portion of the sewage draining pipe 6 is communicated with a discharging hole of the conical discharging hopper 12, and the other end portion of the sewage draining pipe is communicated with the recycling bin 7. The main purpose of the conical discharge hopper 12 is: the filter residues are conveniently discharged to the recycling bin 7. The upper end part is arranged flush to facilitate the convergence and communication of the water outlets; the arrangement of the lower end part enables the lengths of the hollow cavities to be unequal, so that mutual interference among a plurality of filter elements is reduced during cleaning, the cleaning effect is improved, and meanwhile, the concentrated guiding and discharging of filtered residues are facilitated.
When cleaning, the water outlet 30b of the filter element 30 is closed, gas enters the hollow cavity 30a from the air inlet channel 31a of the seal head 31 and pushes the check valve beads 32 to move upwards, and water in the hollow cavity 30a instantaneously diffuses outwards along the side wall of the filter element 30 under the extrusion of the check valve beads 32, so that the cleaning of the side wall of each filter element 30 is realized.
Further, the air supply units 90 are arranged at intervals, when the check valve beads 32 are abutted against the water outlet of the filter element 30, the air supply units 90 stop air supply, the check valve beads 32 fall back to the original position under the action of dead weight, sewage on the outer wall of the filter element 30 is filtered to the hollow cavity 30a, the air supply units 90 supply air again, and the operation is repeated in such a way that the filter element 30 recovers the membrane flux.
Meanwhile, in this example, a filter screen assembly 70 is further arranged in the recovery tank 7, and the sewage treatment machine further comprises a recovery pipe 13 for communicating filtrate in the recovery tank 7 with the sewage inlet pipe 5. The filter screen assembly 70 filters out the particles, impurities and other harmful substances after cleaning and filtering, and the filtrate continuously flows into the filter cartridge 2 for filtering again, so that the resources are fully utilized, and particularly, the environment with the shortage of water sources is provided.
In addition, the processor also comprises a concentrated water outlet pipe 14 communicated with the water outlet of the filter element assembly 3; a circulating water pipe 15 for communicating the water discharge pipe 8 with the recovery tub 7; and electromagnetic valves K (corresponding to K1, K2, K3, K4 and K5) respectively arranged on the drain pipe 8, the concentrated drain pipe 14, the circulating water pipe 15, the recovery pipe 13 and the drain pipe 6, wherein the electromagnetic valve K is communicated with the control system 11, and the control system 11 controls the electromagnetic valve K to be opened or closed so as to realize filtration, drain and drain recovery.
In this example, the arrangement of the circulation pipe 15 is considered in two aspects: 1) The concentrated and filtered water is led into the recovery barrel, and the filter screen component can be washed on the premise of not reducing water loss, so that the filtering effect of the filter screen component is ensured; 2) The filtering effect of the water discharged from the circulating water pipe can be visually observed, so that different sewage adopts filter elements with different membrane fluxes, and the sewage treatment efficiency and quality are improved.
The pipe diameter of the concentrated water outlet pipe 14 is smaller than that of the water outlet pipe 8, and the main purpose of the arrangement is that: 1. after the motor runs at a low speed, the gas in the filter cylinder is discharged; 2. during backwashing, water which does not diffuse outside the filter element 30 in the hollow cavity of the filter element is discharged from the concentrated water outlet pipe 14, so that the water in the filter cartridge can be concentrated to be very little while backwashing is achieved, and the discharged water is reduced as much as possible.
The principle of the air backwash of the filter element assembly of this embodiment is as follows:
when gas enters the hollow cavity 30a through the air inlet channel 31a, the gas is mixed with water and forms upward thrust, the upward thrust is formed, the water outlet of the filter element 30 is closed simultaneously, the pressure in the hollow cavity 30a spreads out of the filter element 30 from the side wall of the filter element 30 instantaneously at the moment, the filter element 30 is flushed out instantaneously, the purpose of backwashing is achieved, air supply is stopped at the moment, the extrusion force disappears, the valve stop bead 32 falls back to the original position under the action of dead weight and blocks the air inlet channel 31a, at the moment, sewage on the outer wall of the filter element 30 is filtered to the hollow cavity 30a again, the air supply unit 90 supplies air again, and the operation is repeated in such a way that the filter element 30 recovers the membrane flux.
The filtering process of this embodiment is as follows:
and K1, K3, K4 and K5 are closed, K2 is opened, the water pump 4 is started, at the moment, the motor runs at a low speed to exhaust, gas is discharged from the concentrated water outlet pipe 14 controlled by K2, after the exhaust is completed, the motor runs at a high speed, at the moment, K1, K2 and K4 are opened, K3 and K5 are closed, sewage enters the filter cartridge 2 from the sewage inlet pipe 5 and is filtered by the filter element assembly, the filtrate flows from the water outlet of the filter element to the water outlet pipe 8, and filter residues remain in the filter cartridge and sink.
The sewage disposal process of this embodiment is as follows:
after the pressure in the filter cartridge or the set time reaches the set value, the control system stops the water pump 4 to supply water, at the moment, K2 is opened, other K1, K3, K4 and K5 are closed, the air supply unit supplies air at intervals, each filter element is repeatedly backwashed, then the air supply is stopped, K5 is opened, filter residues and sewage are discharged to the recovery barrel 7 from the sewage discharge pipe 6, the filter residues are filtered by the filter screen assembly 70 in the recovery barrel 7, the filter residues are discharged, the filtrate is deposited, and the filter residues are communicated with the water pump through the recovery pipe 13.
In summary, the application firstly carries out filtration treatment on sewage, after the pressure in the filter cylinder or the set pressure reaches the set value, the filtration is stopped, the filter screen component is reversely air-washed, after the filtration is completed, the filter residues are discharged to the recycling bin from the conical discharging hopper, then the filter screen component in the recycling bin separates the filter residues and water, the whole processes of filtration of the sewage, washing of the filter element and sewage disposal are completed, then the control system starts the filtration program again after the sewage disposal is completed, and the sewage after sewage disposal is recovered and pumped into the filter cylinder together, and the next filtration, washing of the filter element and sewage disposal processes are carried out, so the circulation is carried out, manual operation is not needed, and full-automatic operation is realized.
The above embodiments are only for illustrating the technical concept and features of the present application, and are intended to enable those skilled in the art to understand the present application and to implement the same, but are not intended to limit the scope of the present application, and all equivalent changes or modifications made according to the spirit of the present application should be included in the scope of the present application.
Claims (10)
1. The utility model provides a sewage treatment machine that can wash filter element assembly by oneself, its includes the frame, is located filter cartridge in the frame, is located filter element assembly in the filter cartridge, be used for with sewage pump in the filter cartridge with sewage advances the pipe, be located filter cartridge below and through blow off pipe with the recycling bin that is linked together of filter cartridge, with the drain pipe that is linked together of filter element assembly delivery port, its characterized in that: the sewage treatment machine also comprises a cleaning system for carrying out online back air washing on the filter element assembly, a monitoring system for monitoring the use state of the filter element assembly and a control system, wherein the monitoring system feeds back the obtained information to the control system, the control system evaluates and gives instructions to the water pump and the cleaning system, the water pump stops supplying water, the water outlet of the filter element assembly is closed, the cleaning system cleans the filter element assembly, and meanwhile, dirt is discharged from the sewage discharge pipe to the recycling bin,
the filter element assembly comprises a plurality of filter elements arranged along the height direction of the filter element, wherein each filter element is arranged in a hollow manner, the lower end part of each filter element is provided with a seal head, and the water outlet is positioned at the top of the filter element; a valve stopping bead is arranged in the hollow cavity inside each filter element, and plugs the end part of the end socket under the action of dead weight; the valve stopping beads can be arranged in the hollow cavity in a vertically movable manner along the length direction of the hollow cavity; the valve stopping beads extend along the length direction of the hollow cavity and are in clearance fit with the inner wall of the hollow cavity; the valve stopping bead comprises a body extending along the length direction of the hollow cavity and hemispheres positioned at two ends of the body, wherein the sphere center of the hemispheroids is attached to the center of the end face of the body, the diameter of the body is equal to that of the hemispheroids, and when the valve stopping bead is cleaned, gas pushes the valve stopping bead away from the plug and extrudes water in the hollow cavity; when the air supply is stopped, the check valve beads can automatically return to the original position under the action of dead weight and block the air supply channel.
2. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 1, wherein: the monitoring system comprises a pressure detector which is arranged on the filter cylinder and used for detecting the sewage pressure in the filter cylinder, wherein the pressure detector is provided with a rated value, and when the sewage pressure in the filter cylinder exceeds the rated value, the control system stops the water pump from supplying water and starts the cleaning system to work.
3. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 1, wherein: the monitoring system comprises a time timer, wherein the time timer is provided with a rated value, when the water pump works, the time timer starts to count down, and when the time timer shows zero, the control system stops the water pump from supplying water and starts the cleaning system to work.
4. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 1, wherein: the cleaning system comprises an air supply unit controlled by the control system and an air pipe used for enabling the air supply unit to be communicated with the air tap, when the cleaning system is used for cleaning, the water outlet of the filter element is closed, air enters the hollow cavity from the air inlet channel of the sealing head and pushes the check valve beads to move upwards, and water in the hollow cavity is instantaneously and outwards diffused along the side wall of the filter element under the extrusion of the check valve beads, so that the cleaning of the side wall of each filter element is realized.
5. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 4, wherein: the air supply unit interval air supply set up, when the check valve pearl is contradicted in the delivery port of filter core, the air supply unit stop the air feed, the check valve pearl fall back to the normal position under the effect of dead weight, lie in the sewage of filter core outer wall strain to cavity, the air supply unit air feed again, so repeatedly operate so that the filter core resumes the membrane flux.
6. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 1, wherein: the upper end parts of the filter elements are flush, and the lower end parts form a frustum with the middle part of the filter element as the center and the outer diameter gradually decreasing from top to bottom.
7. The sewage treatment machine capable of automatically cleaning the filter element assembly according to claim 6, wherein a conical discharging hopper is arranged at the bottom of the frustum, one end part of the sewage discharge pipe is communicated with a discharging hole of the conical discharging hopper, and the other end part of the sewage discharge pipe is communicated with the recycling bin.
8. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 1 or 7, wherein: a filter screen component is also arranged in the recycling bin.
9. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 8, wherein: the sewage treatment machine further comprises a recovery pipe used for communicating filtrate in the recovery barrel with the sewage inlet pipe.
10. The wastewater treatment machine capable of automatically cleaning a filter element assembly according to claim 9, wherein: the processor also comprises a concentrated water outlet pipe communicated with the water outlet of the filter element assembly; the circulating water pipe is used for communicating the water drain pipe with the recycling bin; and electromagnetic valves respectively arranged on the drain pipe, the concentrated water outlet pipe, the circulating water pipe, the recovery pipe and the sewage discharge pipe, wherein the electromagnetic valves are communicated with the control system, and the control system controls the electromagnetic valves to be opened or closed so as to realize filtration, sewage discharge and sewage recovery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710108051.XA CN106731134B (en) | 2017-02-27 | 2017-02-27 | Sewage treatment machine capable of automatically cleaning filter element assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106731134B true CN106731134B (en) | 2023-10-13 |
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| CN109647030A (en) * | 2019-01-14 | 2019-04-19 | 安徽颜钛新材料科技有限公司 | A kind of environment-friendly type aluminium pigment filtering device for raw material |
| CN112915610A (en) * | 2021-01-26 | 2021-06-08 | 甘少强 | Sewage filtering equipment with environment-friendly annular filter element working circularly |
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