CN213623547U

CN213623547U - Full-automatic microporous filter

Info

Publication number: CN213623547U
Application number: CN202022505184.0U
Authority: CN
Inventors: 黄学龙; 王丽
Original assignee: Shanghai Yiqing Filtration Technology Co ltd
Current assignee: Shanghai Yiqing Filtration Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-06
Anticipated expiration: 2030-11-03

Abstract

A full-automatic microporous filter comprises a microporous filter body, an electromagnetic valve, a liquid sensor, a PLC and an electric telescopic rod; the device is also provided with a bottom filter mechanism and an annular locking mechanism; the electromagnetic valve, the microporous filter body, the PLC and the liquid sensor are arranged on the microporous filter body, and the bottom filtering mechanism comprises a connecting plate and a lower bottom plate and is arranged together with a first set of electric telescopic rod and a raw material tank; the annular locking mechanism is arranged at the lower end of the raw material tank. In this is novel, do not need manual operation, under PLC's effect, can reach full intelligent work control. During operation, PLC can be respectively automatic control a plurality of solenoid valves open or close respectively, then accomplish the dirty liquid of millipore filter body (also need filterable liquid promptly) in proper order and filter, recoil washing, positive washing to there is not filterable liquid to filtering raw materials jar lower extreme, and the washing liquid carries out filtration treatment, this novel full-automatic intelligent production of ability does not need artificial operation, and has saved the labour cost expenditure for production.

Description

Full-automatic microporous filter

Technical Field

The utility model relates to a filtration equipment technical field, especially a full-automatic microporous filter.

Background

The microporous filter is a filtering and adsorbing device used in the industrial production of electroplating, chlor-alkali industry, ceramics, pharmacy, sugar making, wine making, water treatment and the like, and mainly functions to recover and filter solids in liquid discharged from production (for example, diatomite impurities in the microporous filter are filtered in beer production and the like, but not limited). The microporous filter has the following advantages: the filtering capacity is high; the back flushing of cleaning gas can be realized during the operation, the slag discharge is convenient, and the labor intensity is low; the filtered filter cake can be washed, dried and reused, so that the cost is saved and the economic benefit is good; the machine shell is sealed, safe and free of leakage, the environment is clean and free of pollution, and one-time complete filtration can be achieved.

The existing microporous filter component structure comprises a raw material tank, a pump, a filter element, an upper cover, a plurality of necessary manual valves and the like. During operation, the pump pumps the liquid which needs to be filtered from the outside into the lower end of the raw material tank, the liquid which needs to be filtered continuously enters the filter element from the micropores on the surface of the filter element under the pressure formed by the liquid pumped by the pump, then flows out of the clear liquid pipe which is arranged on the upper part of the filter element and is positioned on the upper end of the raw material tank and enters the clear liquid tank, and the fixture in the liquid is positioned at the outer side end of the filter element (the process is a filtering. After the liquid is filtered, compressed air and cleaning liquid are input from the upper end of the raw material tank, enter the filter element through the interior of the filter element, flow out from micropores on the surface of the filter element to wash away solids adhered to the outer surface of the filter element, and are discharged through a concentrated liquid outlet at the lower end of the raw material tank (the process is a back washing process). In order to ensure that the unfiltered liquid at the lower end in the raw material tank is filtered and the cleaning liquid is filtered, the conventional microporous filter generally can also install a filter plate at the lower end of the raw material tank, the unfiltered liquid at the lower end in the raw material tank is filtered by the filter plate, and after the cleaning liquid, the two liquids flow into a clear liquid tank to complete the whole work flow (the process is a bottom filtering process).

The existing microporous filter is provided with a plurality of manual control valves for realizing various functions, and during working, the valves are manually and respectively operated to open or close, so that the filtering, backwashing and bottom filtering processes are realized. Because the switching of a plurality of valves of manual operation (for example in the end filter process, need close the valve of pump, open the valve of end filter plate, and open just blowing valve, close the play liquid valve of head tank upper end etc. operation process is comparatively loaded down with trivial details), can bring inconvenience for operating personnel, and be unfavorable for improving work efficiency, also can increase the cost expenditure of production side.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that microporous filter exists because of the structure limitation as background, the utility model provides a have a end and strain mechanism etc. under the PLC control effect, the during operation does not need the people to operate, can open respectively or close of the many solenoid valves of automatic control respectively to filter process, back flush process, end and strain and carry out automatic conversion between the process etc. and realized full-automatic intelligent production from this, and saved a full-automatic microporous filter of labour cost for the producer.

The utility model provides a technical scheme that its technical problem adopted is:

a full-automatic microporous filter comprises a microporous filter body provided with a raw material tank, a filter element, a sewage tank, a back flushing liquid tank, an air compressor, a clear liquid tank and a pump, as well as a plurality of electromagnetic valves, liquid sensors, a PLC and electric telescopic links, wherein the number of the electromagnetic valves is two, and the number of the electric telescopic links is two; it is characterized by also comprising a bottom filter mechanism and an annular locking mechanism; the lower ends of the sewage tank and the backwash liquid tank are respectively connected with one ends of a first electromagnetic valve and a second electromagnetic valve, and the other ends of the first electromagnetic valve and the second electromagnetic valve are respectively connected with a liquid inlet pipe of the pump; a liquid outlet pipe of the pump is connected with one end of a third electromagnetic valve, the other end of the third electromagnetic valve is respectively connected with one end of a fourth electromagnetic valve and one end of a fifth electromagnetic valve, and the other end of the fifth electromagnetic valve is connected with a liquid inlet pipe of the raw material tank; the other end of the fourth electromagnetic valve is connected with one end of a transverse pipe, the lower end and the right end of the transverse pipe are respectively connected with one end of a sixth electromagnetic valve, one end of a seventh electromagnetic valve and one end of an eighth electromagnetic valve, and the other end of the eighth electromagnetic valve is connected with a clear liquid pipe at the upper end of the clear liquid tank; the other end of the seventh electromagnetic valve is connected with one exhaust pipe of the air compressor; an overflow pipe is arranged at the upper part of one side of the raw material tank, the side end of the overflow pipe is connected with one end of a ninth electromagnetic valve, the other end of the ninth electromagnetic valve is connected with a backflow pipe at the upper end of the sewage tank, a branch pipe is arranged at the front side of the overflow pipe, the front end of the branch pipe is connected with one end of a tenth electromagnetic valve, the other end of the tenth electromagnetic valve is connected with another exhaust pipe of the air compressor, an opening is formed in the upper end of the overflow pipe, and a liquid sensor is installed at the; the middle part of the upper end of the transverse pipe is provided with a vertical pipe, and the upper end of the vertical pipe is arranged outside the upper end of the raw material tank and communicated with the interior of the raw material tank; the bottom filtering mechanism comprises a connecting plate and a lower bottom plate, the middle part of the lower bottom plate is of a concave structure, a first set of electric telescopic rods is vertically hinged and installed in the middle of the left outer end of the raw material tank, the lower ends of piston rods of the first set of electric telescopic rods are hinged and installed with one side end of the connecting plate, and the middle part of the connecting plate is hinged and installed with the raw material tank; the lower end of the lower base plate is provided with a return pipe, the lower base plate is arranged at the right end of the connecting plate, the lower end of the return pipe is connected with one end of an eleventh electromagnetic valve, and the other end of the eleventh electromagnetic valve is connected with the other end of a sixth electromagnetic valve; the annular locking mechanism is arranged at the lower end of the raw material tank.

Further, a filter screen is installed in the middle of the upper end of the lower bottom plate, a sealing ring is installed on the outer side of the upper end of the lower bottom plate, and when the connecting plate is in a horizontal state, the upper end of the lower bottom plate and the lower end of the raw material tank are in a contact sealing state.

Further, the valve core of the electromagnetic valve is of a normally closed structure.

Further, annular locking mechanism is annular hollow structure's cover shell, has a limiting plate in the lower extreme outside of head tank, and both ends excircle inboard all has cavity annular lasso about the cover shell, and the lasso of cover shell upper end overlaps on the limiting plate, and the internal diameter of cover shell upper end lasso is less than the external diameter of limiting plate, and the internal diameter of bottom plate is less than the lasso internal diameter of cover shell lower extreme, and second set electric telescopic handle installs under the head tank right-hand member, and second set electric telescopic handle's piston rod left side front end and cover shell front end are articulated to be installed together.

The utility model has the advantages that the principle of the novel microporous filter is completely consistent with that of the existing microporous filter. In this is novel, do not need manual operation, under PLC's effect, can reach full intelligent work control. During operation, PLC can be respectively automatic control a plurality of solenoid valves open or close respectively, then accomplish the dirty liquid of millipore filter body (also need filterable liquid promptly) in proper order and filter, recoil washing, positive washing to there is not filterable liquid to filtering the lower extreme in the raw materials jar, and the washing liquid carries out filtration treatment, this is novel to have realized full-automatic intelligent production, and whole journey does not need manual operation, and has saved the labour cost for production. Based on the above, this is novel has good application prospect.

Drawings

The invention is further explained below with reference to the figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention (the bottom filter mechanism is shown in the figure in two states of opening and closing respectively).

Fig. 2 is a partial structural schematic diagram of the present invention.

Detailed Description

As shown in fig. 1 and 2, a full-automatic microporous filter comprises a microporous filter body 7 having a raw material tank 1, a filter element 2, a sewage tank 3, a backwash liquid tank 4, an air compressor (not shown), a clear liquid tank 5, a pump 6, an electromagnetic valve, a liquid sensor 8, a PLC (not shown), and an electric telescopic rod; the outer sides of the upper parts of a plurality of filter elements 2 are installed on an annular filter core plate 21 at intervals through threads (the upper end of each filter element 2 is provided with an external thread, the filter core plate 21 is provided with a plurality of fixing holes with internal threads, the filter elements 2 are screwed into the fixing holes of the filter core plate through the external threads and are installed on the filter core plate 21), the filter core plate 21 is installed at the upper end in a raw material tank, eleven electromagnetic valves are provided, two sets of electric telescopic rods are provided, the power input end of a PLC (programmable logic controller) and the two poles of an alternating current 220V power supply are respectively connected through leads, the multi-path power output end of the PLC and eleven electromagnetic valves, two sets of electric telescopic rods and the power input; the device is also provided with a bottom filter mechanism 10 and an annular locking mechanism 11; the lower ends of the sewage tank 3 and the backwash liquid tank 4 are respectively connected with one ends of a first electromagnetic valve 91 and a second electromagnetic valve 92 through pipelines, and the other ends of the first electromagnetic valve 91 and the second electromagnetic valve 92 are respectively connected with a liquid inlet pipe tee joint of the pump 6 through pipelines; a liquid outlet pipe of the pump 6 is connected with one end of a third electromagnetic valve 93 through a pipeline, a three-end joint at the other end of the third electromagnetic valve 93 is respectively connected with one ends of a fourth electromagnetic valve 94 and a fifth electromagnetic valve 95 through pipelines, and the other end of the fifth electromagnetic valve 95 is connected with a liquid inlet pipe at the right lower end of the raw material tank 1 through a pipeline; the other end of the fourth electromagnetic valve 94 is in threaded connection with one end of a transverse pipe 12, the lower end and the right end of the transverse pipe 12 (located in the middle of the outer end of the stock tank 1) are respectively in pipeline connection with one end of a sixth electromagnetic valve 96, a seventh electromagnetic valve 97 and an eighth electromagnetic valve 98, and the other end of the eighth electromagnetic valve 98 is in threaded connection with a clear liquid pipe at the upper end of the clear liquid tank 5; the other end of the seventh electromagnetic valve 97 is connected with one exhaust pipe of the air compressor through a hose; an overflow pipe 13 is welded at the upper part of the left end of the raw material tank 1, the left end of the overflow pipe 13 is in threaded connection with one end of a ninth electromagnetic valve 99, the other end of the ninth electromagnetic valve 99 is in threaded connection with a backflow pipe 31 at the upper end of the sewage tank 3, a branch pipe 131 communicated with the inside of the overflow pipe 13 is welded at the right front side of the overflow pipe 13, the branch pipe 131 is connected with one end of a tenth electromagnetic valve 910, the other end of the tenth electromagnetic valve is connected with another exhaust pipe of an air compressor through a hose, an opening is formed in the upper end of the right side of the overflow pipe 13, a liquid sensor 8 is installed at the upper end of the opening, and a; a vertical pipe 14 communicated with the interior of the horizontal pipe 12 is welded in the middle of the upper end of the horizontal pipe 12, and an upper flange of the vertical pipe 14 is arranged in the middle outside the upper end of the raw material tank 1 through a screw nut and communicated with the upper interior of the raw material tank 1; the bottom filtering mechanism 10 comprises a connecting plate 101, a round lower bottom plate 102, a concave structure in the middle of the lower bottom plate 102, a plane structure around the upper end of the lower bottom plate 102, the outer diameter of the lower bottom plate 102 is larger than the outer diameter of a round discharge port 1011 at the lower end of a raw material tank 1, an ┍ -shaped supporting plate 1012 is transversely arranged at the lower left part of the raw material tank 1 through a screw nut, a shaft hole is arranged at the left lower end of the supporting plate 1012, the middle of the connecting plate 101, the left part and the right part are respectively provided with a shaft hole, the outer side of the left middle part of the raw material tank 1 is transversely provided with an upper supporting plate 1013 through a screw nut, the left end of the upper supporting plate 1013 is provided with an opening, the upper end of a cylinder body of the first set of electric telescopic rod 151 is hinged with the left end of the upper supporting plate 1013, the lower end of a piston rod of the first set of electric telescopic rod 151 is hinged with the left end of the connecting plate 101, and the middle part of the connecting plate 101 is hinged with the left end of the supporting plate 1012; a return pipe 103 communicated with the upper part of the lower bottom plate is welded at the lower end of the middle part of the circular lower bottom plate 102, external threads are arranged on the outer side of the return pipe 103, the return pipe 103 is sleeved in an opening hole at the right end of the connecting plate 101 from top to bottom, the external threads at the lower end of the return pipe 103 are screwed in through a nut, the lower bottom plate 102 is installed at the upper right end of the connecting plate 101, the lower end of the return pipe 103 is connected with one end of an eleventh electromagnetic valve 911 through threads, and the other end of the eleventh electromagnetic valve 911 is connected; the annular locking mechanism 11 is arranged at the lower end of the raw material tank 1.

As shown in fig. 1 and 2, a filter screen 1021 is installed in the middle of the upper end of the lower plate 102, a rubber seal ring is glued to the outer side of the upper end of the lower plate 102, and when the connecting plate 101 is in a horizontal state, the upper end of the lower plate 102 and the lower end of the raw material tank 1 are in a contact sealing state. The valve core of eleven electromagnetic valves is of a normally closed structure. The annular locking mechanism is an annular hollow casing 11, the outer side of the lower end of the raw material tank 1 is provided with a circle of annular limiting plate 1014, the inner sides of the outer circles of the upper end and the lower end of the casing 11 are respectively provided with a circle of hollow annular ferrule 111, the ferrule 111 at the upper end of the casing is sleeved on the limiting plate 1014, the inner diameter of the ferrule 111 at the upper end of the casing 11 is smaller than the outer diameter of the limiting plate 1014, the casing 11 can rotate along the limiting plate 1014 of the raw material tank, the inner diameter of the lower bottom plate 102 is smaller than the inner diameter of the ferrule 111 at the lower end of the casing, the outer lower end of the raw material tank 1 is positioned above the right part of the limiting plate 1014 and is transversely arranged on a supporting seat 1015 through a screw nut, the front end of the piston rod of the second electric telescopic rod 152 is hinged with the front end of the supporting seat 1015, when the piston, the sleeve 11 will rotate a certain angle along the limit plate 1014. The lower parts of the front end and the rear end of the lower bottom plate 102 are respectively provided with an integrally formed inclined surface bayonet 1021, the right end of the bayonet 1021 is low, and the left end of the bayonet is high; the upper front end and the lower rear end in the lower end ferrule of the casing 11 are respectively provided with an integrally formed bayonet 1111 at the lower end, when the casing 11 rotates leftwards to a certain angle, the upper end bayonet 1111 inclined plane of the ferrule at the lower end of the casing and the bayonet 1021 at the front lower end and the rear lower end of the lower bottom plate (the inner diameter of the bayonet 1111 at the upper end of the ferrule at the lower end of the casing is smaller than the outer diameter of the bayonet at the inclined plane of the lower bottom plate) are respectively contacted, the lower bottom plate 102 is pushed to move upwards, and the periphery.

The principle of the new and existing microporous filters is basically the same as that shown in fig. 1 and 2. In this is novel, do not need manual operation, under PLC's effect, can reach full intelligent work control. During operation, PLC is under the effect of internal circuit, dirty liquid (that is to say need filterable liquid) filtration process can carry out earlier, PLC controls first solenoid valve 91 earlier and has got the electricity case to open, third solenoid valve 93 and fifth solenoid valve 95, eighth solenoid valve 98, ninth solenoid valve 99 has got the electricity case to open (all the other solenoid valves are closed), thus, need in the sewage jar 3 filter dirty liquid and can get into head tank 1 inside through the pump-out, under the pressure of pump effect, dirty liquid moves from lower extreme upward in the head tank 1, and after the surface micropore filtration of many filter cores 2 of upper end in the head tank 1, get into the interior upper end of head tank 1 again from many filter cores 2, then through standpipe 14, violently pipe 12, eighth solenoid valve 98 gets into in clear liquid jar 5, the impurity is located the outside end of filter core after the filtration. Air in the raw material tank 1 is discharged through the ninth electromagnetic valve 99 via the overflow pipe in the dirty liquid enters the raw material tank 1 and flows upwards, a small amount of dirty liquid partially flows back into the backflow pipe 31 before the dirty liquid amount reaches the higher height in the raw material tank 1, and then after the dirty liquid amount is detected by the probe of the liquid level sensor 8, the PLC controls the ninth electromagnetic valve 99 to be powered off and closed, so that a large amount of dirty liquid is prevented from flowing back into the sewage tank 3. After a period of time (generally ten minutes, namely after the sewage in the sewage tank 3 is about to be filtered), the filtering process is finished, and the PLC control equipment enters a back washing process. The PLC controls the second solenoid valve 92 to be opened by an electric valve core, the third solenoid valve 93, the seventh solenoid valve 97, the fourth solenoid valve 94 and the ninth solenoid valve 99 to be opened by electric valve cores (all the other solenoid valves are closed), so that the cleaning liquid in the backwashing liquid tank 4 enters the upper end of the raw material tank 1 through the pump 6, the third solenoid valve 93, the fourth solenoid valve 94 and the vertical pipe 14, meanwhile, compressed air output by the air compressor enters the upper end of the raw material tank through the seventh solenoid valve 97, the cleaning liquid and the compressed air simultaneously flow in through the middle part of the upper end of the filter element at a high speed and then flow out from a plurality of micropores on the surface of the filter element, air and the cleaning liquid with pressure simultaneously blow down impurities adhered to the outer surface of the filter element and fall into the lower end of the raw material tank, so that backwashing can be performed, after a period of time (generally 1 minute), a backwashing procedure (generally 30 seconds) is completed, and no, now the ninth solenoid valve 99 will have its electric valve spool open and the air blown in the opposite direction will be discharged through the overflow pipe 31). And after the back washing process is finished, the PLC control equipment enters a forward purging process. The PLC controls the tenth electromagnetic valve 910 to be switched on (all the other electromagnetic valves are closed), so that compressed air output by the air compressor can enter the raw material tank and is positioned in the part below the upper end of the filter element, the compressed air can adhere to the filter element, impurities which do not fall during reverse purging are blown to the lower end of the raw material tank 1, and the forward purging process (generally 20 seconds) is completed. After the forward blowing and sucking process is completed, the PLC control device filters the liquid which is not filtered at the lower end in the raw material tank and the cleaning liquid, under the novel initial state, the upper end of the lower bottom plate 102 is in close contact with the lower bottom of the raw material tank 1, the PLC controls the tenth electromagnetic valve 910 to be powered on, the eleventh electromagnetic valve 911, the sixth electromagnetic valve 96 and the eighth electromagnetic valve 98 to be powered on (all the other electromagnetic valves are powered off), so that the compressed air output by the air compressor enters the raw material tank 1 through the tenth electromagnetic valve, the liquid which is not filtered at the lower end of the raw material tank 1 (when the pump stops working under the action of the compressed air, the liquid can be remained at the lower end in the raw material tank 1), and the cleaning liquid is filtered, the liquid in the filtering flows into the return pipe 103 from the upper end of the filter screen 1021 on the bottom plate, and then flows through the return pipe 103, the hose 16, The sixth electromagnetic valve 96 enters the transverse pipe 12 and then flows into the clear liquid tank 5 from the transverse pipe 12 and the eighth electromagnetic valve 98, and the whole process is completed after 1 minute (impurities in the raw material tank 1 are positioned on the filter screen 1021 of the lower bottom plate).

Fig. 1 and 2 show, this novel whole process is accomplished afterwards, when needing to take out the fixed impurity that is located raw material tank 1 inner lower extreme, the staff moves about 5 seconds through PLC control second set electric telescopic handle's piston rod right, then electric telescopic handle's piston rod drives cover shell 11 and rotates certain angle right, the bayonet socket 1021 of two lower extremes around the lasso upper end bayonet socket 1111 inclined plane of cover shell lower extreme and the lower plate separates respectively (the bayonet socket 1021 of two lower extremes around the lasso upper end bayonet socket 1111 inclined plane of cover shell lower extreme and the lower plate is not at a perpendicular), no longer promote lower plate 102 upward movement, there is certain clearance lower plate 102's upper end all around and raw material tank 1's lower bottom. Then PLC control first set of electric telescopic handle's piston rod upward movement, then, the piston rod drives lower plate 102 through connecting plate 101 and moves down for 10 seconds and stops (lower plate 102 is in vertical state), then 1 lower extreme of head tank is opened, and inside impurity after filtering falls in the outer impurity jar body 17 of lower extreme of head tank 1. After the impurities are discharged, in order to be used normally next time, a worker controls the piston rod of the first set of electric telescopic rod to move downwards through the PLC, then the piston rod drives the lower base plate 102 to move upwards for 10 seconds through the connecting plate 101 to stop, and the upper part of the lower base plate 102 in a horizontal state is in contact with the lower end of the raw material tank 1; then, the worker controls the piston rods of the second set of electric telescopic rods to move leftwards for about 5 seconds through the PLC, the sleeve 11 rotates leftwards to a certain angle, the bayonet 1111 inclined plane at the upper end of the ferrule at the lower end of the sleeve and the bayonet 1021 at the front and rear lower ends of the lower base plate are respectively contacted (the bayonet 1111 inclined plane at the upper end of the ferrule at the lower end of the sleeve and the bayonet 1021 at the front and rear lower ends of the lower base plate are on a vertical plane), the lower base plate 102 is pushed to move upwards, and the periphery of the upper end of the lower base plate 102 is tightly contacted and sealed with the lower bottom of the raw. Through the aforesaid, this novel PLC can be respectively automatic control a plurality of solenoid valves open respectively or close, then accomplish the filtration of microporous filter body foul solution, recoil washing, just wash in proper order to there is not filterable liquid to filtering the lower extreme in the raw materials jar, and the washing liquid carries out filtration treatment, this novel full-automatic intelligent production that has realized, whole journey does not need manual operation, and has saved the labour cost expenditure for the producer.

Having shown and described the fundamental principles and essential features of the invention, and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A full-automatic microporous filter comprises a microporous filter body provided with a raw material tank, a filter element, a sewage tank, a back flushing liquid tank, an air compressor, a clear liquid tank and a pump, as well as a plurality of electromagnetic valves, liquid sensors, a PLC and electric telescopic links, wherein the number of the electromagnetic valves is two, and the number of the electric telescopic links is two; it is characterized by also comprising a bottom filter mechanism and an annular locking mechanism; the lower ends of the sewage tank and the backwash liquid tank are respectively connected with one ends of a first electromagnetic valve and a second electromagnetic valve, and the other ends of the first electromagnetic valve and the second electromagnetic valve are respectively connected with a liquid inlet pipe of the pump; a liquid outlet pipe of the pump is connected with one end of a third electromagnetic valve, the other end of the third electromagnetic valve is respectively connected with one end of a fourth electromagnetic valve and one end of a fifth electromagnetic valve, and the other end of the fifth electromagnetic valve is connected with a liquid inlet pipe of the raw material tank; the other end of the fourth electromagnetic valve is connected with one end of a transverse pipe, the lower end and the right end of the transverse pipe are respectively connected with one end of a sixth electromagnetic valve, one end of a seventh electromagnetic valve and one end of an eighth electromagnetic valve, and the other end of the eighth electromagnetic valve is connected with a clear liquid pipe at the upper end of the clear liquid tank; the other end of the seventh electromagnetic valve is connected with one exhaust pipe of the air compressor; an overflow pipe is arranged at the upper part of one side of the raw material tank, the side end of the overflow pipe is connected with one end of a ninth electromagnetic valve, the other end of the ninth electromagnetic valve is connected with a backflow pipe at the upper end of the sewage tank, a branch pipe is arranged at the front side of the overflow pipe, the front end of the branch pipe is connected with one end of a tenth electromagnetic valve, the other end of the tenth electromagnetic valve is connected with another exhaust pipe of the air compressor, an opening is formed in the upper end of the overflow pipe, and a liquid sensor is installed at the; the middle part of the upper end of the transverse pipe is provided with a vertical pipe, and the upper end of the vertical pipe is arranged outside the upper end of the raw material tank and communicated with the interior of the raw material tank; the bottom filtering mechanism comprises a connecting plate and a lower bottom plate, the middle part of the lower bottom plate is of a concave structure, a first set of electric telescopic rods is vertically hinged and installed in the middle of the left outer end of the raw material tank, the lower ends of piston rods of the first set of electric telescopic rods are hinged and installed with one side end of the connecting plate, and the middle part of the connecting plate is hinged and installed with the raw material tank; the lower end of the lower base plate is provided with a return pipe, the lower base plate is arranged at the right end of the connecting plate, the lower end of the return pipe is connected with one end of an eleventh electromagnetic valve, and the other end of the eleventh electromagnetic valve is connected with the other end of a sixth electromagnetic valve; the annular locking mechanism is arranged at the lower end of the raw material tank.

2. The full-automatic microporous filter according to claim 1, wherein the middle part of the upper end of the lower bottom plate is provided with a filter screen, the outer side of the upper end of the lower bottom plate is provided with a sealing ring, and when the connecting plate is in a horizontal state, the upper end of the lower bottom plate and the lower end of the raw material tank are in a contact sealing state.

3. The full-automatic microporous filter according to claim 1, wherein the valve core of the electromagnetic valve is of a normally closed structure.

4. The full-automatic microporous filter according to claim 1, wherein the annular locking mechanism is a casing with an annular hollow structure, a limiting plate is arranged at the outer side of the lower end of the raw material tank, hollow annular ferrules are arranged at the inner sides of the outer circles at the upper end and the lower end of the casing, a ferrule at the upper end of the casing is sleeved on the limiting plate, the inner diameter of the ferrule at the upper end of the casing is smaller than the outer diameter of the limiting plate, the inner diameter of the lower bottom plate is smaller than the inner diameter of the ferrule at the lower end of the casing, the second set of electric telescopic rod is installed below the right end of the raw material tank, and the.