CN111072171A - Filtering and purifying device for industrial wastewater treatment and using method - Google Patents
Filtering and purifying device for industrial wastewater treatment and using method Download PDFInfo
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- CN111072171A CN111072171A CN201911274893.8A CN201911274893A CN111072171A CN 111072171 A CN111072171 A CN 111072171A CN 201911274893 A CN201911274893 A CN 201911274893A CN 111072171 A CN111072171 A CN 111072171A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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Abstract
The invention discloses a filtering and purifying device for industrial wastewater treatment and a using method thereof. According to the invention, large-volume solids and small-volume solids in industrial wastewater can be effectively and completely filtered through the first filter screen, the second filter screen, the first filter layer and the second filter layer, so that the defect that small-particle stains cannot be filtered is prevented; the cleaning liquid is injected into the purification box through the backflushing pipe, so that the stains adsorbed in the first filter screen, the second filter screen, the first filter layer and the second filter layer can be effectively cleaned, and are discharged through the recovery pipe, and the filtering effect is increased to a certain extent.
Description
Technical Field
The invention relates to an industrial sewage treatment device, in particular to a filtering and purifying device for industrial sewage treatment and a using method thereof, belonging to the technical field of industrial sewage treatment equipment.
Background
Industrial waste water includes production waste water, production sewage and cooling water, refers to waste water and waste liquid produced in the industrial production process, wherein contain industrial production materials, intermediate products, byproducts and pollutants produced in the production process that run off with water. Therefore, a filtering and purifying device for industrial wastewater treatment and a using method thereof are provided to solve the problems.
Disclosure of Invention
The present invention is directed to solving the above problems and to providing a filtration and purification apparatus for industrial wastewater treatment and a method of use thereof.
The invention achieves the above-mentioned purpose through the following technical scheme, a industrial waste water treatment uses and filters the refining plant and its operation method, including filtering the organization, cleaning mechanism and booster mechanism;
the filter mechanism comprises a purification box, a top cover, a water inlet pipe, a water inlet valve and a first frame body, wherein the top end of the purification box is fixedly connected with the top cover, the top of the top cover is communicated with and provided with the water inlet pipe, the surface of the water inlet pipe is communicated and provided with the water inlet valve, the top end of the inner wall of the purification box is sequentially sleeved with the first frame body and a second frame body from top to bottom, a first filter screen is sleeved inside the first frame body, a second filter screen is sleeved inside the second frame body, the bottom end of the inner wall of the purification box is fixedly connected with a plurality of ceramic columns, the ceramic columns are divided into two groups on average, the ceramic columns in each group are arranged in rows, the tops of the ceramic columns on the upper row are provided with first filter layers, and the tops of the ceramic columns on the lower row;
the cleaning mechanism comprises recovery pipes, a recovery collecting pipe, connecting pipes and connecting valves, five same recovery pipes are equidistantly arranged on the side wall of the purification box in a communicated manner, the tail ends of the recovery pipes are communicated and arranged on the side wall of the recovery collecting pipe, the bottom end of one side of each recovery collecting pipe is communicated and arranged with the connecting pipe, and the surface of each connecting pipe is communicated and arranged with the connecting valves;
the booster mechanism includes frame, air pump, breather pipe, check valve and barometer, the lateral wall top rigid coupling of purifying box has the frame, the top rigid coupling of frame has the air pump, the breather pipe is installed to the air-out end intercommunication of air pump, the lateral wall at the purifying box is installed to the terminal intercommunication of breather pipe, the check valve is installed to the surface intercommunication of breather pipe, the barometer is installed in the position intercommunication that is located the breather pipe top to the lateral wall of purifying box.
Preferably, a plurality of same water leakage holes are formed in the surfaces of the ceramic columns at equal intervals.
Preferably, a plurality of the ceramic posts in the same row are mutually overlapped.
Preferably, the bottom end of the side wall of the purification box is communicated with and provided with a drain pipe and a back flushing pipe from bottom to top.
Preferably, the surface of the drain pipe is communicated with and provided with a drain valve, and the surface of the backflushing pipe is communicated and provided with a backflushing valve.
Preferably, four identical airtight doors are installed on the side wall of the purification box in a cross connection mode.
Preferably, the four closed doors respectively correspond to the first frame body, the second frame body, the first filter layer and the second filter layer, and the first frame body, the second frame body, the first filter layer and the second filter layer are respectively located below the corresponding closed doors.
Preferably, the five recovery pipes are respectively positioned above the first frame body, the second frame body, the first filter layer, the second filter layer and the bottom of the purification box.
Preferably, the second filter layer has the same thickness as the first filter layer.
Preferably, the use method of the filtering and purifying device for industrial wastewater treatment comprises the following steps:
(1) the installation equipment is characterized in that the tail end of the connecting pipe is connected with a water pumping device, the back flushing pipe is connected with a detergent supply device, the water discharging pipe is connected with other water purifying devices, and the water inlet pipe is connected with a sewage input device;
(2) injecting sewage, opening a sewage input device, and enabling the sewage to enter the interior of the purification box through a water inlet pipe;
(3) after the sewage enters the interior of the purification box, the sewage firstly passes through the first filter screen to realize primary filtration, and the water after primary filtration passes through the second filter screen to realize secondary filtration, wherein the sizes of meshes of the first filter screen and the second filter screen are different, so that the volumes of the filtered impurities are different;
(4) purifying, wherein harmful substances in sewage subjected to secondary filtration pass through a first filter layer, the harmful substances are filtered by the first filter layer, the first filter layer consists of thirty percent of carbon and seventy percent of broken stone, the organic substances in the sewage can be physically adsorbed and filtered, then the sewage subjected to primary purification permeates to the surface of a second filter layer through the filtering action for hours, the second filter layer is used for purifying water again, the second filter layer consists of quartz sand, the diameter range of the quartz sand is ranged from one millimeter to another millimeter, the distance range between the quartz sand is ranged from-micrometer, the second filter layer not only has the filtering action on impurities in the sewage, but also has a certain adsorption action on the impurities in the sewage;
(5) discharging the purified water, opening a drainage valve, and discharging the water after twice filtration and twice purification through a drainage pipe;
(6) pressurizing, wherein when the filtering and purifying speed is low, the water inlet valve can be closed and the water discharge valve can be opened, then the air pump is opened to inject air into the purifying box, the air pressure in the purifying box is judged according to the air pressure gauge, and the permeation speed of the sewage is accelerated due to the increase of the air pressure in the purifying box, so that the filtering and purifying speed is increased;
(7) and (3) backwashing, after filtering and purifying are finished, opening a water inlet valve and a water outlet pipe, opening a backwashing valve, opening a cleaning agent supply device, injecting a cleaning agent into the purifying box by the cleaning agent supply device, after the purifying box is filled with a cleaning liquid, closing the backwashing valve, standing for a period of time, dissolving stains on the surfaces of the first filter screen, the second filter screen, the first filter layer and the second filter layer by the cleaning agent, opening a connecting valve, opening a water pumping device, and discharging the cleaning agent carrying the stains together through the connecting pipe.
The invention has the beneficial effects that:
1. according to the invention, large-volume solids and small-volume solids in industrial wastewater can be effectively and completely filtered through the first filter screen, the second filter screen, the first filter layer and the second filter layer, so that the defect that small-particle stains cannot be filtered is prevented;
2. the cleaning liquid is injected into the purification box through the back flushing pipe, so that stains adsorbed in the first filter screen, the second filter screen, the first filter layer and the second filter layer can be effectively cleaned, and are discharged through the recovery pipe, and the filtering effect is increased to a certain extent;
3. when purification speed slows down, can increase the inside atmospheric pressure of purifying box through opening the air pump to the inside injected air of purifying box to accelerate sewage permeation rate, and then increase sewage treatment speed, the device simple structure, convenient to use is fit for using widely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic front sectional view of the present invention;
FIG. 3 is a schematic top view of the cross-sectional structure of the present invention;
FIG. 4 is a schematic view of the structure of the ceramic posts of the present invention.
In the figure: 1. purifying box, 2, top cap, 3, the inlet tube, 4, inlet valve, 5, first framework, 6, first filter screen, 7, second framework, 8, the second filter screen, 9, ceramic post, 901, the hole that leaks, 10, first filtering layer, 11, second filtering layer, 12, the drain pipe, 13, the drain valve, 14, the recoil pipe, 15, the recoil valve, 16, the recovery tube, 17, the recovery collecting pipe, 18, the connecting pipe, 19, connecting valve, 20, the frame, 21, the air pump, 22, the breather pipe, 23, the check valve, 24, the barometer, 25, the airtight door.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1-4, a filtering and purifying device for industrial wastewater treatment and a method for using the same, comprising a filtering mechanism, a cleaning mechanism and a pressurizing mechanism;
the filtering mechanism comprises a purifying box 1, a top cover 2, a water inlet pipe 3, a water inlet valve 4 and a first frame body 5, the top end of the purifying box 1 is fixedly connected with a top cover 2, the top of the top cover 2 is communicated with a water inlet pipe 3, the surface of the water inlet pipe 3 is communicated with and provided with a water inlet valve 4, the top end of the inner wall of the purifying box 1 is sequentially sleeved with a first frame body 5 and a second frame body 7 from top to bottom, a first filter screen 6 is sleeved in the first frame body 5, a second filter screen 8 is sleeved in the second frame body 7, the bottom end of the inner wall of the purification box 1 is fixedly connected with a plurality of ceramic columns 9, the ceramic columns 9 are divided into two groups on average, the ceramic columns 9 in each group are arranged in rows, the tops of the ceramic columns 9 in the upper row are provided with first filter layers 10, and the tops of the ceramic columns 9 in the lower row are provided with second filter layers 11;
the cleaning mechanism comprises recovery pipes 16, a recovery collecting pipe 17, connecting pipes 18 and connecting valves 19, five identical recovery pipes 16 are equidistantly communicated and mounted on the side wall of the purification box 1, the tail ends of the recovery pipes 16 are communicated and mounted on the side wall of the recovery collecting pipe 17, the bottom end of one side of the recovery collecting pipe 17 is communicated and mounted with the connecting pipe 18, and the surface of the connecting pipe 18 is communicated and mounted with the connecting valves 19;
the booster mechanism includes frame 20, air pump 21, breather pipe 22, check valve 23 and barometer 24, the lateral wall top rigid coupling of purge tank 1 has frame 20, the top rigid coupling of frame 20 has air pump 21, breather pipe 22 is installed to the air-out end intercommunication of air pump 21, the lateral wall at purge tank 1 is installed to the terminal intercommunication of breather pipe 22, check valve 23 is installed to the surface intercommunication of breather pipe 22, barometer 24 is installed in the position intercommunication that is located breather pipe 22 top to the lateral wall of purge tank 1.
A plurality of identical water leakage holes 901 are arranged on the surfaces of the ceramic posts 9 at equal intervals.
The ceramic posts 9 in the same row are mutually overlapped.
And a drain pipe 12 and a back flushing pipe 14 are communicated and installed at one side of the bottom end of the side wall of the purifying box 1 from bottom to top.
The surface of the drain pipe 12 is provided with a drain valve 13 in a communicating way, and the surface of the backflushing pipe 14 is provided with a backflushing valve 15 in a communicating way.
Four identical airtight doors 25 are installed on the side wall of the purifying box 1 in a connecting mode.
The four airtight doors 25 respectively correspond to the first frame body 5, the second frame body 7, the first filter layer 10 and the second filter layer 11, and the first frame body 5, the second frame body 7, the first filter layer 10 and the second filter layer 11 are respectively positioned below the corresponding airtight doors 25.
The five recovery pipes 16 are respectively positioned above the first frame 5, above the second frame 7, above the first filter layer 10, above the second filter layer 11, and above the bottom of the purification box 1.
The second filter layer 11 has the same thickness as the first filter layer 10.
The use method of the filtering and purifying device for industrial wastewater treatment comprises the following steps:
(1) installing equipment, connecting the tail end of a connecting pipe 18 with a water pumping device, connecting a back flushing pipe 16 with a detergent supply device, connecting a drain pipe 12 with other water purifying devices, and connecting a water inlet pipe 3 with a sewage input device;
(2) injecting sewage, opening a sewage input device, and enabling the sewage to enter the interior of the purifying box 1 through the water inlet pipe 3;
(3) after entering the interior of the purification box 1, the sewage is firstly filtered by the first filter screen 6 to realize primary filtration, and the water after primary filtration flows through the second filter screen 8 to realize secondary filtration, wherein the volumes of the filtered impurities are different because the meshes of the first filter screen 6 and the second filter screen 8 are different;
(4) purifying, wherein harmful substances in sewage subjected to secondary filtration pass through a first filter layer 10, the harmful substances in the sewage are filtered by the first filter layer 10, the first filter layer 10 consists of thirty percent of carbon and seventy percent of broken stone, the organic substances in the sewage can be physically adsorbed and filtered, then the sewage subjected to primary purification permeates to the surface of a second filter layer 11 through the filtering action for hours, the second filter layer 11 is used for purifying the water again, the second filter layer 11 consists of quartz sand, the diameter range of the quartz sand is 0.5-1.2 millimeters, the distance range between the quartz sand is 80-120 micrometers, the second filter layer 11 has the filtering action on impurities in the sewage and also has a certain adsorption action on the impurities in the sewage;
(5) discharging the purified water, opening a drainage valve 13, and discharging the water after twice filtration and twice purification through a drainage pipe 12;
(6) pressurizing, wherein when the filtering and purifying speed is low, the water inlet valve 4 can be closed, the water discharge valve 13 can be opened, then the air pump 21 is opened to inject air into the purifying box 1, the air pressure in the purifying box 1 is judged according to the air pressure gauge 24, and the permeation speed of the sewage is accelerated due to the increase of the air pressure in the purifying box 1, so that the filtering and purifying speed is increased;
(7) and (2) backwashing, after filtering and purifying are finished, opening the water inlet valve 4 and the water outlet pipe 13, opening the backwashing valve 15, opening the cleaning agent supply device, injecting cleaning agent into the purifying box 1 by the cleaning agent supply device, closing the backwashing valve 15 after the purifying box 1 is filled with cleaning liquid, standing for a period of time, dissolving stains on the surfaces of the first filter screen 5, the second filter screen 6, the first filter layer 10 and the second filter layer 11 by the cleaning agent, opening the connecting valve 19, opening the water pumping device, and discharging the stains carried by the cleaning agent together through the connecting pipe 18.
It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A filtering and purifying device for industrial wastewater treatment is characterized in that: comprises a filtering mechanism, a cleaning mechanism and a supercharging mechanism;
the filter mechanism comprises a purification box (1), a top cover (2), a water inlet pipe (3), a water inlet valve (4) and a first frame body (5), wherein the top end of the purification box (1) is fixedly connected with the top cover (2), the top of the top cover (2) is communicated with and provided with the water inlet pipe (3), the surface of the water inlet pipe (3) is communicated and provided with the water inlet valve (4), the top end of the inner wall of the purification box (1) is sequentially sleeved with the first frame body (5) and a second frame body (7) from top to bottom, the first filter screen (6) is sleeved inside the first frame body (5), the second filter screen (8) is sleeved inside the second frame body (7), the bottom end of the inner wall of the purification box (1) is fixedly connected with a plurality of ceramic columns (9), the ceramic columns (9) are averagely divided into two groups, and the ceramic columns (9) in each group, the tops of the ceramic columns (9) on the upper row are provided with first filtering layers (10), and the tops of the ceramic columns (9) on the lower row are provided with second filtering layers (11);
the cleaning mechanism comprises recovery pipes (16), a recovery collecting pipe (17), connecting pipes (18) and connecting valves (19), five identical recovery pipes (16) are equidistantly communicated and mounted on the side wall of the purification box (1), the tail ends of the recovery pipes (16) are communicated and mounted on the side wall of the recovery collecting pipe (17), the bottom end of one side of the recovery collecting pipe (17) is communicated and mounted with the connecting pipe (18), and the surface of the connecting pipe (18) is communicated and mounted with the connecting valves (19);
booster mechanism includes frame (20), air pump (21), breather pipe (22), check valve (23) and barometer (24), the lateral wall top rigid coupling of purifying box (1) has frame (20), the top rigid coupling of frame (20) has air pump (21), breather pipe (22) are installed to the air-out end intercommunication of air pump (21), the lateral wall in purifying box (1) is installed to the terminal intercommunication of breather pipe (22), check valve (23) are installed to the surface intercommunication of breather pipe (22), barometer (24) are installed in the position intercommunication that is located breather pipe (22) top to the lateral wall of purifying box (1).
2. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 1, wherein: a plurality of same water leakage holes (901) are arranged on the surfaces of the ceramic columns (9) at equal intervals.
3. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 1, wherein: the ceramic columns (9) in the same row are mutually overlapped.
4. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 1, wherein: a drain pipe (12) and a back flushing pipe (14) are communicated and installed on one side of the bottom end of the side wall of the purifying box (1) from bottom to top.
5. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 4, wherein: the surface of the drain pipe (12) is communicated with and provided with a drain valve (13), and the surface of the backflushing pipe (14) is communicated with and provided with a backflushing valve (15).
6. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 1, wherein: four identical airtight doors (25) are installed on the side wall of the purifying box (1) in a cross connection mode.
7. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 6, wherein: the four airtight doors (25) respectively correspond to the first frame body (5), the second frame body (7), the first filtering layer (10) and the second filtering layer (11), and the first frame body (5), the second frame body (7), the first filtering layer (10) and the second filtering layer (11) are respectively located below the corresponding airtight doors (25).
8. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 1, wherein: the five recovery pipes (16) are respectively positioned above the first frame body (5), the second frame body (7), the first filter layer (10), the second filter layer (11) and the bottom of the purification box (1).
9. The filtration purification apparatus for industrial wastewater treatment as set forth in claim 1, wherein: the second filter layer (11) has the same thickness as the first filter layer (10).
10. A method of using a filtering and purifying device for industrial wastewater treatment according to any one of claims 1 to 9, characterized in that: the using method comprises the following steps:
(1) the installation equipment is characterized in that the tail end of the connecting pipe (18) is connected with a water pumping device, the back flushing pipe (16) is connected with a detergent supply device, the drain pipe (12) is connected with other water purifying devices, and the water inlet pipe (3) is connected with a sewage input device;
(2) injecting sewage, opening a sewage input device, and enabling the sewage to enter the purifying box (1) through the water inlet pipe (3);
(3) after the sewage enters the interior of the purification box (1), the sewage firstly passes through the first filter screen (6) to realize primary filtration, the water after the primary filtration passes through the second filter screen (8) to realize secondary filtration, and the volumes of the filtered impurities are different because the meshes of the first filter screen (6) and the second filter screen (8) are different;
(4) purifying, wherein harmful substances in sewage subjected to secondary filtration pass through a first filter layer (10), the harmful substances in the sewage are filtered by the first filter layer (10), the first filter layer (10) consists of thirty percent of carbon and seventy percent of broken stone, organic substances in the sewage can be physically adsorbed and filtered, the sewage subjected to primary purification permeates to the surface of a second filter layer (11) through the filtering action for hours, the second filter layer (11) is used for purifying the water again, the second filter layer (11) consists of quartz sand, the diameter range of the quartz sand is 0.5-1.2 mm, the distance range between the quartz sand is 80-120 microns, the second filter layer (11) has the filtering action on impurities in the sewage and has a certain adsorption action on the impurities in the sewage;
(5) discharging the purified water, opening a drainage valve (13), and discharging the water after twice filtration and twice purification through a drainage pipe (12);
(6) pressurizing, wherein when the filtering and purifying speed is low, the water inlet valve 4 can be closed, the water discharge valve (13) can be opened, then the air pump (21) is opened to inject air into the purifying box (1), the air pressure in the purifying box (1) is judged according to the barometer (24), and the permeation speed of the sewage is accelerated due to the increase of the air pressure in the purifying box (1), so that the filtering and purifying speed is increased;
(7) the back washing, after filtration purification, open inlet valve (4) and drain pipe (13), open back washing valve (15), open sanitizer feeding device, sanitizer feeding device pours into the sanitizer into purifying box (1), after the purifying box (1) is filled with the sanitizer, close back washing valve (15), after a terminal time of stewing, the sanitizer is with first filter screen (5), second filter screen (6), the spot on first filtering layer (10) and second filtering layer (11) surface dissolves, open connecting valve (19), and open pumping equipment, the sanitizer carries the spot together to discharge through connecting pipe (18).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911274893.8A CN111072171A (en) | 2019-12-12 | 2019-12-12 | Filtering and purifying device for industrial wastewater treatment and using method |
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| CN201911274893.8A CN111072171A (en) | 2019-12-12 | 2019-12-12 | Filtering and purifying device for industrial wastewater treatment and using method |
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| CN111921411A (en) * | 2020-07-16 | 2020-11-13 | 殷震花 | Anticorrosion water-based paint process system and water-based paint formula thereof |
| CN111921411B (en) * | 2020-07-16 | 2022-05-06 | 惠州市山宝实业有限公司 | Anticorrosion water-based paint process system and water-based paint formula thereof |
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Application publication date: 20200428 |