CN114797196B - Automatic dirt-sucking micro-irrigation sand filter - Google Patents
Automatic dirt-sucking micro-irrigation sand filter Download PDFInfo
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- CN114797196B CN114797196B CN202210543538.1A CN202210543538A CN114797196B CN 114797196 B CN114797196 B CN 114797196B CN 202210543538 A CN202210543538 A CN 202210543538A CN 114797196 B CN114797196 B CN 114797196B
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- sewage disposal
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- sewage
- rotating shaft
- pipe
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- 239000004576 sand Substances 0.000 title claims abstract description 33
- 238000003973 irrigation Methods 0.000 title claims abstract description 19
- 239000010865 sewage Substances 0.000 claims abstract description 95
- 238000001914 filtration Methods 0.000 claims abstract description 65
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 22
- 238000001802 infusion Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 4
- 239000012065 filter cake Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 72
- 238000011010 flushing procedure Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000167857 Bourreria Species 0.000 description 1
- 244000126211 Hericium coralloides Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4668—Regenerating the filtering material in the filter by moving the filtering element
- B01D24/4673—Regenerating the filtering material in the filter by moving the filtering element using rotary devices or vibration mechanisms, e.g. stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
- B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
- B01D24/4884—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration by pressure measuring
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The application provides an automatic dirt-absorbing micro-irrigation sand filter, which comprises a tank body, a filter layer arranged in the tank body, an inlet and an outlet which are respectively arranged at two sides of the filter layer, wherein the filter layer comprises a filter surface close to one side of the inlet, and further comprises: the sewage disposal assembly comprises a detection unit for detecting pressure difference on two sides of a filtering surface and a sewage disposal unit connected with the detection device, wherein the sewage disposal unit comprises a rotating shaft, a driving device, at least one sewage disposal pipe and a sewage disposal channel, the rotating shaft is used for driving the rotating shaft to rotate around an axis, the at least one sewage disposal pipe is matched with the filtering surface, the sewage disposal channel is communicated with the at least one sewage disposal pipe, a sewage disposal hole is formed in the sewage disposal pipe, the rotating shaft and the filtering surface of the filtering layer are vertically arranged, the sewage disposal pipe is vertically arranged on the rotating shaft, and a sewage disposal outlet communicated with the sewage disposal channel is formed in the tank, so that sewage disposal capacity can be improved through the arrangement mode.
Description
Technical Field
The application relates to the technical field of filters, in particular to an automatic dirt-sucking micro-irrigation sand filter.
Background
The sand filter is one of the filtering equipment with the widest application range in the current micro-irrigation engineering, and has the characteristics of strong dirt interception capability and convenient filter material cleaning. The sand filter for micro-irrigation adopts filter material particles with a certain depth to be stacked layer by layer to form a porous medium sand bed, and the porous medium sand bed is used as a filtering carrier for three-dimensional deep filtration. The sand filter mainly comprises two stages of filtering and back flushing, wherein the filtering mainly comprises the steps of intercepting impurities on the surface of a filter layer through a filter layer, and the back flushing generally comprises the steps of fluidizing the accumulated filter layer from bottom to top through reverse water flow, and enabling the impurities adhered to the surfaces of the particles to fall off through collision friction among the particles and flushing out of a tank along with water flow. During each back flushing, the impurities can be discharged after the whole filter layer is reversely fluidized by strong back flushing water flow. A typical filtering mechanism of the sand filter is surface layer filtering, namely, in the filtering process, only a 10-20cm filtering layer is used as a main function, and the filter is described in detail in papers such as surface layer filtering of a micro-irrigation sand filter material and air-water backwash test research, blocking of a micro-irrigation system and sand filtering parameter test research and the like.
Based on the thought, the current back flushing mode has the major defects that the main sewage receiving layer (top layer) and the secondary sewage receiving layer (bottom layer) are simplified and unified back flushing is carried out during back flushing, in order to enable the filtering layers of 40cm-60cm to realize complete rising, the other filtering tank is required to provide sufficient water flow, the filtering layers of the bottom layer are fluidized first and then fluidized upwards layer by layer, the back flushing time is long each time, the back flushing water flow is very large, and according to experience, the back flushing time is generally 90s-300s each time. If the surface water is filtered, the viscous impurities are more difficult to clean, and the water consumption is larger. In the traditional application mode, the backwashing interval time is generally set to be 4-8 hours. The back flushing mode based on time and inlet-outlet pressure difference can lead a large amount of purified water to be discharged along with sewage, and reduces the utilization efficiency of water resources. Meanwhile, an impurity filter cake is formed on the surface layer of the filtering layer in general, the filtering mechanism of the sand filtering layer is changed into surface layer screening from deep filtering, the sewage containing amount is greatly reduced, the inlet and outlet pressure difference is sharply increased, and meanwhile, the filtering flow is also obviously reduced, and the filtering efficiency is influenced, so that the current back flushing mode has great disadvantages, namely that the main sewage containing layer (top layer) and the secondary sewage containing layer (bottom layer) are simplified together for back flushing each time, and the back flushing time is longer and the back flushing water flow is very large.
Disclosure of Invention
In view of the above problems, the present application provides an automatic dirt sucking micro-irrigation sand filter, which is used for solving the technical problems existing in the prior art.
The application provides an automatic dirt-absorbing micro-irrigation sand filter, which comprises a tank body, a filter layer arranged in the tank body, an inlet and an outlet which are respectively arranged at two sides of the filter layer, wherein the filter layer comprises a filter surface close to one side of the inlet, and further comprises: the sewage disposal assembly comprises a detection unit for detecting pressure difference on two sides of a filtering surface and a sewage disposal unit connected with the detection device, wherein the sewage disposal unit comprises a rotating shaft, a driving device, at least one sewage disposal pipe and a sewage disposal channel, the rotating shaft is used for driving the rotating shaft to rotate around an axis, the at least one sewage disposal pipe is matched with the filtering surface, the sewage disposal channel is communicated with the at least one sewage disposal pipe, a sewage disposal hole is formed in the sewage disposal pipe, the rotating shaft is perpendicular to the filtering surface of the filtering layer, the sewage disposal pipe is perpendicular to the rotating shaft, and a sewage disposal outlet is formed in the tank and is communicated with the sewage disposal channel.
Further, the drain hole is provided at a side of the drain pipe facing the filtering surface.
Further, the drain holes are a plurality of gaps which are uniformly arranged at intervals along the axial direction of the drain pipe, and the width of each gap is d, wherein d is less than or equal to 2mm.
Further, an infusion channel is coaxially arranged in the rotating shaft, and at least one drain pipe is communicated with the infusion channel.
Further, the rotating shaft penetrates through the tank body, the sewage draining channel is an infusion channel coaxially arranged in the rotating shaft, and the sewage draining outlet is arranged on the rotating shaft and extends out of the end part of the tank body.
Further, two support plates are arranged at intervals in the tank body, the filter layer is arranged on one of the support plates, a communication port for communicating the infusion channel with the region between the support plates is arranged on the rotating shaft, the sewage draining channel comprises the infusion channel and the region between the support plates, and the sewage draining port is arranged on the tank body and is communicated with the region between the support plates.
Further, the sewage disposal unit further comprises a sewage disposal plate arranged on the sewage disposal pipe, and the sewage disposal plate is provided with comb teeth.
Further, the drain outlet is provided with a control valve.
Further, the tank body is cylindrical in vertical arrangement, the rotating shaft is coaxially arranged with the tank body, and the filtering surface is the upper surface of the filtering layer.
Advantageous effects
The application provides an automatic dirt suction micro-irrigation sand filter, which has the following beneficial effects:
1. through setting up detection device and detecting the value of pressure differential, when pressure differential reaches the default, control blowdown subassembly work makes the drain open, rivers can flow into the drain through the blowoff hole on the drain this moment to flow along with the blowoff passageway through the drain, when rivers flow, the impurity of adhesion on the filter face can flow along with rivers together, drive arrangement drive pivot rotates this moment, make the impurity of adhesion on the filter face leave the filter face, thereby the discharge of impurity of being convenient for more, and along with the rotation of pivot, make the drain can pass through each region of filter face, thereby can evenly discharge the impurity on the filter face, improve blowdown ability.
2. The phenomenon of uneven surface filtering layers caused by water flow impact can be improved through rotation of the rotating shaft and the blow-off pipe, flatness of the surface filtering layers is realized in the rotating process, and the sewage containing capacity is improved.
3. The gap on the drain pipe is only formed on one side facing the filtering surface, and the drain pipe is close to the filtering layer in the rotation process of the mandrel, so that impurities adhered to the gap in the sewage suction process can fall off due to the friction effect of the drain pipe and the filtering layer, and the gap cannot be blocked.
4. The filter holes are formed into the plurality of gaps uniformly arranged along the axial direction of the sewage pipe at intervals, and the width is limited to be d less than or equal to 2mm, so that filter material particles can be prevented from entering the sewage hole and being discharged when the rotating shaft rotates.
5. Through set up the dirt cleaning plate on with the blow off pipe, the dirt cleaning plate is provided with the broach, and the welding has the tooth form structure of similar comb on the dirt suction pipe, can turn the filter layer surface 10-20cm filter layer that the grit formed to more easily turn out the impurity in the filter layer, can improve cleaning efficiency.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings.
Fig. 1 is a schematic overall structure of a first embodiment of an automatic dirt suction micro-irrigation sand filter according to the present application.
Fig. 2 is a schematic structural view of a second embodiment of an automatic dirt sucking micro-irrigation sand filter provided by the application.
Fig. 3 is a schematic diagram of a structure of a rotor in a second embodiment of the present application.
Fig. 4 is a schematic structural view of a drain pipe according to the present application.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
Referring to fig. 1, the present application provides an automatic dirt-sucking micro-irrigation sand filter, which comprises a tank 1, a filter layer 2 arranged in the tank 1, and an inlet 10 and an outlet 11 respectively arranged at two sides of the filter layer 2, wherein the filter layer 2 comprises a filter surface 21 near one side of the inlet, and further comprises: the sewage disposal assembly 3, the sewage disposal assembly 3 is including being used for detecting the detection unit 31 of filter face 21 both sides pressure differential and with the blowdown unit 32 that detection device 31 is connected, blowdown unit 32 including rotate set up in the pivot 320 of jar body 1, be used for the drive pivot 320 around axis pivoted drive arrangement 321, with at least one blow off pipe 322 of filter face 21 looks adaptation and with at least one blow off passageway 323 of blow off pipe 322 intercommunication, be provided with blow off hole 3210 on the blow off pipe 321, the pivot with the filter face of filtering layer sets up perpendicularly, the blow off pipe set up perpendicularly in the pivot, be provided with on the jar body with blow off mouth 3230 of blow off passageway 323 intercommunication.
Specifically, as a specific embodiment, the driving device adopts a driving motor, the detecting device 31 adopts a pressure sensor, and referring to fig. 1, the application method of the automatic dirt sucking micro-irrigation sand filter provided by the application is as follows: when in use, water flow with certain pressure P0 for filtering impurities flows in through the inlet 10, the water flow passes through the filter layer 2 to filter the impurities and then flows out from the outlet, so as to obtain clean water flow, along with the progress of filtration, the impurities are gradually attached to the filter surface 21, the thickness of the impurities is gradually increased to form a filter cake, the resistance of the water flow passing through the filter layer is increased, the pressure difference at two sides of the filter layer is gradually increased, the pressure difference is detected by the detection device 31, when the pressure difference reaches a preset value, the sewage discharging assembly is controlled to work, the sewage discharging outlet is opened, at the moment, the water flow can flow into the sewage discharging pipe through the sewage discharging hole on the sewage discharging pipe 322 and flows out along with the sewage discharging channel through the sewage discharging outlet 3230, at the same time of water flow, at the same time, the impurities attached to the filter surface can flow out along with the water flow, at the moment, the driving device 321 drives the rotating shaft 320 to rotate, the impurities attached on the filtering surface are separated from the filtering surface so as to be more convenient for discharging the impurities, and the drain pipe can pass through each area of the filtering surface along with the rotation of the rotating shaft so as to uniformly discharge the impurities on the filtering surface, the water permeability of the filtering layer 2 is improved along with the discharge of the impurities, so that the pressure difference at two sides of the filtering surface is reduced and gradually lower than the preset value set by the detection pressure sensor, at the moment, the driving motor is controlled to stop working, the drain outlet is controlled to be closed, and the work of cleaning the impurities is stopped, and as can be understood, the filtering layer adopts a sand filtering mode in some embodiments, the surface filtering layer roughness caused by water flow impact can be improved through the rotation of the rotating shaft and the drain pipe, the surface filtering layer is flat in the rotating process, the dirt containing capacity is improved, and as a preferred embodiment, the blow-off pipes can be uniformly arranged at intervals around the rotating shaft; because the filter layer adopts the grit to pave the formation more, and rivers direct scour can destroy the structure of filter layer, influence the filter effect, in order to avoid rivers direct scour filter layer, refer to fig. 1 as specific embodiment, opening 10 is the mouth of pipe of the feed liquor pipe that sets up on jar body 1, and as an embodiment, the end that the feed liquor pipe stretches into jar body inside is provided with to keeping away from the kink that the filter surface direction was buckled and is formed, can avoid the direct scour of liquid flow to the filter surface through this kind of mode.
Further, referring to fig. 3 and 4, as a preferred embodiment, the drain hole 3210 is provided at a side of the drain pipe 322 facing the filtering surface 21. Through this kind of setting method, can make the impurity of adhesion on the filter face more easy follow blowdown hole discharge, and the gap is offered only in the one side towards the filter face on the dirty pipe, can be at dabber rotation in-process, the filter layer is pressed close to the blow off pipe, consequently to the impurity of adhesion on the gap in-process of absorbing dirt, can drop owing to the friction effect of blow off pipe and filter layer, can not block up the gap.
Further, referring to fig. 4, as a specific embodiment, the drain holes 3210 are a plurality of slits uniformly spaced along the axial direction of the drain pipe 322, where the width of the slits is d.ltoreq.2mm, and specifically, it is understood that the filter layer adopts a granular structure with a particle size R of 1-2 mm, and the filter layer is disposed in a plurality of slits uniformly spaced along the axial direction of the drain pipe 322, and the width is limited to d.ltoreq.2mm, so that when the rotating shaft rotates, filter material particles can be prevented from entering the drain hole and being discharged.
Further, as a preferred embodiment, an infusion channel (not shown) is coaxially disposed in the rotating shaft 320 as described with reference to fig. 1, and at least one of the drain pipes 322 is in communication with the infusion channel, so that the structure can be simplified and compact.
Further, as a preferred embodiment, referring to fig. 1, the rotating shaft 320 is disposed through the tank, the drain passage 323 is an infusion channel coaxially disposed in the rotating shaft 320, and the drain port 3230 is disposed at an end portion of the rotating shaft 320 extending out of the tank; the jar body is cylindric of vertical setting, pivot 320 with jar body coaxial setting, the filter face is the upper surface of filter layer, it is understood that because the filter mainly adopts the grit to filter rivers, consequently, through setting up the jar body into vertical cylinder, the intermediate position level of jar body sets up the backup pad, set up filtration filter cap 22 in the backup pad, then lay the grit on the filter and thereby form filter layer 2, concrete grit can throw into the jar body through setting up grit on jar body 1 into 4, at the during operation, rivers flow in through import 10, after filtering impurity through the grit, then filter out tiny granule through the filter cap again, then flow into the below of jar body 1 through the filter cap, then flow out by the export, thereby accomplish the filtration to rivers, easier filter layer's of this kind of mode formation, the structure is more reasonable.
Further, as a preferred embodiment, referring to fig. 4, the sewage draining unit 32 further includes a sewage cleaning plate 324 disposed on the sewage draining pipe, the sewage cleaning plate 324 is provided with comb teeth, by this arrangement, the comb-like tooth structure is welded on the sewage sucking pipe 4, and the filtering layer 10-20cm of the filtering layer surface formed by the sand can be turned, so that the impurities in the filtering layer can be turned out more easily, and the cleaning efficiency can be improved.
Further, the drain 3230 is provided with a control valve 325. The control valve is arranged to control the opening and closing of the sewage outlet, as a preferred implementation mode, the control valve adopts an electromagnetic valve, a control device is arranged, the control device collects detection values of the detection unit 31, so that the opening and closing of the electromagnetic valve with the automatic control value are controlled, the opening and closing of the driving device 321 are controlled, namely, once a filter cake on the surface layer of the filter surface is about to form, the pressure difference on the two sides of the filter surface exceeds a threshold value, the driving device is controlled by the controller to work to drive the rotating shaft to rotate, impurities are sucked into the sewage outlet by gaps uniformly distributed on the sewage suction pipe only through the small-range filter layer with the surface layer of 10cm-20cm, after the sewage outlet valve is opened, the tank body can be discharged, the self-cleaning sewage discharging process is completed, the pressure difference on the two sides of the filter surface after the impurities are discharged is lower than the threshold value, the electromagnetic valve is controlled to be closed, and the driving device stops working at the moment. In particular, in passingWhen impurities in a filter layer are cleaned, a drain pipe 322 is driven to move through rotation of a rotating shaft 320, then a sand layer of the filter layer is shoveled by a comb tooth, impurities in the sand layer are turned up and then enter the drain pipe 322 along with water flow to be discharged through gaps, it can be understood that in order to ensure the discharging speed of the impurities in the filter layer, the width d of the gaps is set to be large enough when the gaps are arranged, sand grains in the sand layer can be adsorbed on the gaps in the process, so that the discharging of the impurities can be blocked to a certain extent, the pressure P0 of the water flow is larger, the phenomenon that the gaps are blocked by sand grains is more obvious when the d is set to be larger, and although the drain pipe is arranged on one side facing the filter layer, in the rotating process of the rotating shaft, part of the drain pipe can be rubbed with the sand layer to remove part of the gaps, but when the particle size R of the sand grains is similar to the width of the gaps, the sand grains are clamped in the gaps, the phenomenon that the gaps are not easy to be blocked is caused, the circulation of the gaps is reduced, the effect of the gaps is caused, the impurities is caused, the discharging efficiency is reduced, and the gap is caused, and the gap is prevented from being discharged, and the gap width d = N is determined by the fact that the width d is less than the gap is determined by the width d -1 *&(P0/φ) 1/2 R, wherein N is the number of all gaps on all blow-down pipes 322, and the range of N is: n is greater than or equal to 4, phi is the flow area of all the gaps on all the blow-down pipes 322 in the unblocked state,&for adjusting the coefficient, the value range is 0.15-0.38.
Example two
Referring to fig. 2, the present application provides an automatic dirt sucking micro-irrigation sand filter, which comprises a tank 1, a filter layer 2 arranged in the tank 1, and an inlet 10 and an outlet 11 respectively arranged at two sides of the filter layer 2, wherein the filter layer 2 comprises a filter surface 21 near one side of the inlet, and further comprises: the dirt cleaning assembly 3 is further improved, and the difference between the embodiment and the first embodiment is that two support plates 9 are arranged in the tank body at intervals, the filter layer 2 is arranged on one of the support plates, a communication port 3200 for communicating the infusion channel with the area between the two support plates 9 is arranged on the rotating shaft 320, the dirt discharging channel 323 comprises the infusion channel with the area between the two support plates 9, and the dirt discharging port 3230 is arranged on the tank body and is communicated with the area between the two support plates 9.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (3)
1. The utility model provides an automatic dirt suction micro-irrigation grit filter, includes a jar body (1), set up with filter layer (2) in jar body (1) and divide to locate import (10) and export (11) of filter layer (2) both sides, filter layer (2) are including being close to filter face (21) of import one side, its characterized in that still includes: the sewage disposal device comprises a sewage disposal assembly (3), wherein the sewage disposal assembly (3) comprises a detection unit (31) for detecting pressure difference at two sides of a filtering surface (21) and a sewage disposal unit (32) connected with the detection unit (31), the sewage disposal unit (32) comprises a rotating shaft (320) which is rotatably arranged on a tank body (1), a driving device (321) which is used for driving the rotating shaft (320) to rotate around an axis, at least one sewage disposal pipe which is matched with the filtering surface (21) and a sewage disposal channel which is communicated with the at least one sewage disposal pipe (322), a sewage disposal hole (3210) is formed in the sewage disposal pipe (322), the rotating shaft is vertically arranged on the filtering surface of the filtering layer, the sewage disposal pipe is vertically arranged on the rotating shaft, and a sewage disposal outlet (3230) which is communicated with the sewage disposal channel is formed in the tank body;
the drain hole (3210) is arranged at one side of the drain pipe (322) facing the filtering surface (21);
the water flow with certain pressure for filtering impurities flows into the filter layer through the inlet, the impurities are filtered by the water flow and then flows out of the outlet, so that clean water flow is obtained, the impurities are gradually attached to the filter surface along with the progress of filtration, the thickness of the impurities is gradually increased to form a filter cake, the resistance of the water flow passing through the filter layer is increased, the pressure difference at two sides of the filter layer is gradually increased, the pressure difference value is detected by the detection device, when the pressure difference reaches a preset value, the sewage discharging assembly is controlled to work, the sewage discharging outlet is opened, the water flow flows into the sewage discharging pipe through the sewage discharging hole on the sewage discharging pipe and flows out along with the sewage discharging channel, the impurities attached to the filter surface can flow out along with the water flow at the same time when the water flow flows out, the impurities attached to the filter surface are enabled to leave the filter surface along with the rotation of the rotary shaft, the impurities are more conveniently discharged, the sewage discharging pipe can pass through each area of the filter surface, the impurities on the filter surface can be uniformly discharged along with the rotation of the rotary shaft, the impurities are improved, the water permeability at two sides of the filter surface is reduced, the water permeability is gradually and the pressure difference is lower than the preset value, the pressure difference value is controlled to stop the operation of the pressure sensor is controlled to stop the operation, and the sewage discharging sensor is controlled to stop;
the sewage draining hole (3210) is a plurality of gaps which are uniformly and alternately arranged along the axial direction of the sewage draining pipe (322), and the width of each gap is d, wherein d is less than or equal to 2mm;
an infusion channel is coaxially arranged in the rotating shaft (320), and at least one drain pipe (322) is communicated with the infusion channel;
the rotating shaft (320) penetrates through the tank body, the sewage draining channel is an infusion channel coaxially arranged in the rotating shaft (320), and the sewage draining outlet (3230) is arranged at the end part of the rotating shaft (320) extending out of the tank body;
two support plates are arranged in the tank body at intervals, the filter layer (2) is arranged on one of the support plates, a communication port (3200) for communicating the infusion channel with an area between the two support plates is arranged on the rotating shaft (320), the sewage draining channel comprises the infusion channel and an area between the two support plates, and the sewage draining port (3230) is arranged on the tank body and is communicated with the area between the two support plates;
the sewage draining unit (32) further comprises a sewage draining plate (324) arranged on the sewage draining pipe, and the sewage draining plate (324) is provided with comb teeth.
2. An automatic soil pick-up micro-irrigation sand filter according to claim 1, wherein the drain (3230) is provided with a control valve (325).
3. The automatic dirt sucking micro-irrigation sand filter according to claim 2, wherein the tank body is cylindrical and is arranged vertically, the rotating shaft (320) is arranged coaxially with the tank body, and the filtering surface is the upper surface of the filtering layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210543538.1A CN114797196B (en) | 2022-05-18 | 2022-05-18 | Automatic dirt-sucking micro-irrigation sand filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210543538.1A CN114797196B (en) | 2022-05-18 | 2022-05-18 | Automatic dirt-sucking micro-irrigation sand filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114797196A CN114797196A (en) | 2022-07-29 |
| CN114797196B true CN114797196B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210543538.1A Active CN114797196B (en) | 2022-05-18 | 2022-05-18 | Automatic dirt-sucking micro-irrigation sand filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117599476A (en) * | 2024-01-22 | 2024-02-27 | 靖江宁新机械制造有限公司 | Multifunctional intelligent liquid filtering equipment and application method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06254318A (en) * | 1993-03-09 | 1994-09-13 | Eiichi Yoshida | Filter device |
| EP1433511A1 (en) * | 2002-12-19 | 2004-06-30 | Utisol Technologies AG | Filter device |
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| EP1433511A1 (en) * | 2002-12-19 | 2004-06-30 | Utisol Technologies AG | Filter device |
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| CN114797196A (en) | 2022-07-29 |
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