CN2723425Y - High efficiency water treating and purifying device - Google Patents
High efficiency water treating and purifying device Download PDFInfo
- Publication number
- CN2723425Y CN2723425Y CN 200420036830 CN200420036830U CN2723425Y CN 2723425 Y CN2723425 Y CN 2723425Y CN 200420036830 CN200420036830 CN 200420036830 CN 200420036830 U CN200420036830 U CN 200420036830U CN 2723425 Y CN2723425 Y CN 2723425Y
- Authority
- CN
- China
- Prior art keywords
- water
- housing
- gas distribution
- delivery device
- water treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a high efficiency water treating and purifying device, comprising a housing, a raw water inlet arranged at the lower/upper part of the housing, an outlet of the clear water filtering and a filtering device arranged in the middle of the housing. The utility model is characterized in that the filtering device adopts the bundle fiber filter material, and the upper and lower end of the bundle fiber filter material respectively are fixed on an upper hole plate and a grid plate arranged inside the housing. An air and water distributing device which connects with the grid plate through the connection device is arranged at the lower side of the grid plate. A regulating valve for the water in and out with the pressure and a guide pulley are arranged on the air and water distributing device. A plurality of directing devices are arranged in the housing to make the air and water distributing device move up and down, and the guide pulley of the air and water distributing device moves up and down in the directing device. The compacting fabric filtering layer of the utility model can trap the solid contaminant in the water, and the relaxing fabric filtering layer can wash the filtering layer in the reverse direction, recovering the filtration performance of the filtering layer. As the shedding and the leaking of the fabric filtering material can not occur, and the filtering material surface has a sterilizing function, high efficiency water treating and purifying device is practical and can be used widely.
Description
Technical field
The utility model relates to a kind of water treatment device, relates in particular to the long efficient water treatment purifier applied widely of the big life-span of filtering material of a kind of retaining power.
Background technology
Water treatment is widely used in all trades and professions, as the pre-treatment of the feedwater water of electric power, metallurgy, petrochemical industry, food, tap water or the like industry, even the sewage disposal of biological pollution and the reuse after the sewage disposal thereof.In water treatment procedure, filtration treatment is the requisite processing links in the water treatment.
What the filtration unit of prior art water treatment usually adopted is the quartz sand filtration device, promptly is to form the filtration treatment device with quartz sand as filtrate, in order to divide the solid shape pollutent in dried up.But, because the structural limitations of quartz sand filtration device, make it to exist in actual use shortcomings such as filtering velocity is low, retaining power is little, filtrate runs off easily and the long filtrate of summary duration of service hardens easily, so the quartz sand filtration device can only be applicable to the occasion of the water treatment that filtration velocity is unhappy, filtering accuracy is not high, retaining power is less.
Summary of the invention
The purpose of this utility model is to provide a kind of improved efficient water treatment purifier, and not only filtration velocity is fast, filtering accuracy is high for it, filtrate can not run off and harden, and filtrate cleans easily and the life-span is long, and has the wider scope of application.
The purpose of this utility model is achieved in that
A kind of efficient water treatment purifier comprises: housing, be arranged on the raw water inlet of lower housing portion appropriate location, and be arranged on the filtration clear water output of appropriate location, housing top, and the filtration unit that is arranged on the housing middle part; Be characterized in:
The bundle fiber filtrate that described filtration unit adopts, the upper and lower ends of this bundle fiber filtrate are fixed on the flase floor of the up-hole plate that is separately positioned on the housing middle and upper part and housing middle and lower part;
One gas distribution and water delivery device is set under flase floor, and this gas distribution and water delivery device links together by coupling device and flase floor; Compressive force turnover water regulating valve and leading sheave are set on gas distribution and water delivery device; A plurality of orienting devices that supply gas distribution and water delivery device to move up and down are set in housing, and the leading sheave of described gas distribution and water delivery device moves up and down in orienting device.
In above-mentioned efficient water treatment purifier, wherein also comprise: the scavenging air inlet manifold who is arranged on lower housing portion; And, be positioned at that the scavenging air inlet manifold goes up and be connected the clean cloth device of air that communicates with the scavenging air inlet manifold.
In above-mentioned efficient water treatment purifier, wherein also comprise: one is arranged on the scavenging air outlet on housing top.
In above-mentioned efficient water treatment purifier, wherein, described gas distribution and water delivery device is divided into six, and the aperture that supplies filtered water and scavenging air to pass through is set between every equably, links together by connecting strip between each piece.
In above-mentioned efficient water treatment purifier, wherein, the described orienting device that is arranged in the housing is perpendicular to and filters cross section and evenly setting.
In above-mentioned efficient water treatment purifier, wherein, described orienting device is three directed rod structures perpendicular to the even setting in filtration cross section, and the described leading sheave that is arranged in the gas distribution and water delivery device downside moves up and down at the orienting device of three directed rod structures with being sliding mode.
In above-mentioned efficient water treatment purifier, wherein, described orienting device is three guide slot structures perpendicular to the even setting in filtration cross section, and the described leading sheave that is arranged in the gas distribution and water delivery device downside moves up and down at the orienting device of three guide slot structures with being sliding mode.
In above-mentioned efficient water treatment purifier, wherein, described inner walls is provided with some guide slots, and described gas distribution and water delivery device outer lower portion is provided with directional wheel, and this directional wheel moves up and down in guide slot.
In above-mentioned efficient water treatment purifier, wherein, set out mill weir on described housing top, on effluent weir top the water outlet water eliminator is set, described filtration clear water output is arranged on the lower side of effluent weir.
In above-mentioned efficient water treatment purifier, wherein, described clean cloth device of air is made up of a plurality of air arms, and the lower end of each air arm is connected with the scavenging air inlet manifold and communicates.
The efficient water treatment purifier of the utility model makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and positively effect:
1. the utility model is owing to adopt the bundle fiber filtrate to form filtering layer, and the Inlet and outlet water pressure regulating device is set on gas distribution and water delivery device, when the state of filtration, the fiber filtering layer is compacted, porosity is very little, solid shape pollutent in thus can effectively catching water this shows that its retaining power is long-range and efficient is high;
2. the utility model is owing to be provided with scavenging air air inlet and the distribution device that filtering layer is cleaned, and when the retaining power of filtering layer is saturated, can loosen and back flushing the fiber filtering layer again, makes the fiber filtering layer recover strainability again;
3. the utility model is because bundle fiber filtrate two ends hang on respectively on porous plate and movable rack plate, and therefore can not coming off runs off makes it to have increased the life-span; Because the surface has the fiber of sterilizing function, make it applied range simultaneously;
4. the utility model is flexible coupling owing to being provided with by the connecting strip of making as the glue material on the gas distribution and water delivery device, therefore when waterpower is uneven, can effectively alleviate the phenomenon of gas distribution and water delivery device and housing wall or orienting device generation jam;
5. the utility model has been installed guide slot owing to be provided with pulley on gas distribution and water delivery device at internal tank, guarantees filtering layer in the process of filtering compacting, and gas distribution and water delivery device can not deflect and cause the jam phenomenon; And, because leading sheave is installed, can make the direction operation of gas distribution and water delivery device according to directed post on orienting device, guarantee the compacting of filtering layer or loosen, make filtration unit carry out normal water treatment work and filtering layer cleans the maintenance that recovers strainability.
Description of drawings
By the description of following some embodiment to the efficient water treatment purifier of the utility model, can further understand the purpose of this utility model, specific structural features and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 is that the master of the efficient water treatment purifier of the utility model inner pressed embodiment cuts open structural representation;
Fig. 2 is that bowing of the efficient water treatment purifier of the utility model inner pressed embodiment cutd open structural representation;
Fig. 3 is that the master of the another kind of structure of the orienting device among the efficient water treatment purifier of the utility model inner pressed embodiment cuts open structural representation;
Fig. 4 is that the bowing of another kind of structure of the orienting device among the efficient water treatment purifier of the utility model inner pressed embodiment cutd open structural representation;
Fig. 5 is the structural representation of the efficient water treatment purifier of the utility model gerotor type embodiment;
Fig. 6 is the structural representation of the square structure of the efficient water treatment purifier of the utility model gerotor type embodiment;
Fig. 7 is the working state schematic representation of the efficient water treatment purifier of the utility model inner pressed embodiment.
Embodiment
See also shown in the accompanying drawing, the efficient water treatment purifier of the utility model is a kind of facility that provides water filtration to handle usefulness, and it can remove the solid shape pollutent in the water, is to the requisite link of the sewage disposal of water treatment and slight pollution.The efficient water treatment purifier of the utility model is divided into two kinds of inner pressed embodiment and gerotor type embodiments, Fig. 1 to Fig. 4 is the structural representation of the purifier of inner pressed embodiment, and Fig. 5 and Fig. 6 are the structural representations of the purifier of gerotor type embodiment.
See also Fig. 1 to shown in Figure 4, they are structural representations of the efficient water treatment purifier of the utility model inner pressed structure.The efficient water treatment purifier of inner pressed structure comprises: housing 1, be arranged on the raw water inlet 8 of appropriate location, housing 1 bottom, and be arranged on the filtration clear water output 10 of appropriate location, housing 1 top, at housing 1 middle part filtration unit 3 is set; In the utility model, what filtration unit 3 adopted is bundle fiber filtrate 31, the upper end of this bundle fiber filtrate 31 is fixed on the up-hole plate 2 that is arranged on housing 1 middle and upper part, and the lower end of bundle fiber filtrate 31 is fixed on the flase floor 4 that is arranged on housing 1 middle and lower part; At flase floor one gas distribution and water delivery device 5 is set for 4 times, this gas distribution and water delivery device 5 links together by coupling device 41 and flase floor 4; Be provided with compressive force turnover water regulating valve 51 and leading sheave 52 at gas distribution and water delivery device 5 downsides, leading sheave 52 is along moving up and down in the orienting device 6 that is arranged in the housing 1, promptly drives gas distribution and water delivery device 5, flase floor 4, bundle fiber filtrate 31, up-hole plate 2 and moves up and down.
As can be seen from Figure 1, the orienting device 6 that is arranged on housing 1 is three directed post or oriented chutes perpendicular to the even setting in filtration cross section, the leading sheave 52 that is arranged in gas distribution and water delivery device 5 downsides can be moved up and down at the orienting device 6 of directed post or oriented chute structure with being sliding mode, its objective is to prevent the gas distribution and water delivery device 5 clamp phenomenon that when moving up and down, deflects effectively.
See also Fig. 3 and shown in Figure 4, they are that the master of the another kind of structure of the orienting device in the efficient water treatment purifier of the utility model inner pressed structure cuts open and bows and cut open structural representation.In the present embodiment, the motion orientation device of gas distribution and water delivery device 5 is also with such enforcement, guide slot 44 promptly is set on housing 1, downside at gas distribution and water delivery device 5 is provided with directional wheel 43, directional wheel 43 places in the guide slot 44, make directional wheel 43 along with buoyancy of water moves up and down along guide slot 44,, therefore can effectively reduce the resistance of gas distribution and water delivery device 5 in moving process because directional wheel 43 also is to be sliding friction with guide slot 44 ways of contact.
Please in conjunction with Fig. 1 referring to shown in Figure 2, Fig. 2 is that the bowing of gas distribution and water delivery device in the efficient water treatment purifier of the utility model inner pressed structure cutd open structural representation.Described gas distribution and water delivery device 5 is divided into six, link together by connecting strip 53 between each piece, in the present embodiment, connecting strip 53 is made by rubber-like rubber material, because connecting strip 53 has elasticity, when therefore even gas distribution and water delivery device 5 in moving process jam takes place, the rubber-like connecting strip 53 that the rubber material is made can play effective regulating effect, regulates the generation of jam phenomenon.
See also shown in Figure 1, the efficient water treatment purifier of the utility model inner pressed structure also comprises, be arranged on the scavenging air inlet manifold 9 and the clean cloth device of air 7 of housing 1 bottom, clean cloth device of air 7 is made up of a plurality of air arms, the lower end of each air arm 7 is connected with scavenging air inlet manifold 9 and communicates, when scavenging air inlet manifold 9 input scavenging air, promptly pencil fiber filtering 31 is exitted by 7 pairs of filtration units 3 of clean cloth device of air of forming by a plurality of air arms, bundle fiber filtrate 31 is loosened, and pencil fiber filtering 31 is produced shake.One scavenging air outlet 11 is set, in order in housing 1, to form the passage of scavenging air on the top of housing 1.
From as can be known above-mentioned, the utility model water treatment purifier, former water inlet is arranged on the bottom, filtration unit is arranged on the middle part, clear water output is arranged on top, and the circulating direction of water is that the bottom from the utility model device enters, through the filtering layer in the filtration unit, dirt in the water is held back, and clear water flows out from the top of device.
See also Fig. 5 and shown in Figure 6, they are that the structural representation and the water outlet water eliminator of the efficient water treatment purifier of the utility model gerotor type structure is the structural representation of square.The utility model gerotor type embodiment is similar to the basic structure of inner pressed embodiment, and difference is to be provided with in the gerotor type embodiment water outlet water eliminator 14 and effluent weir 13; In the present embodiment, effluent weir 13 is arranged on housing 1 top, on effluent weir 13 tops water outlet water eliminator 14 is set; In order to obtain the bigger filtration treatment water yield, the unlimited gerotor type filter area that increases single lattice is unpractical, can put together the gerotor type device of four, six, eight even more same size, many lattice parallel connection just is to obtain the bigger filtration treatment water yield.This shows that the filtration area of gerotor type is often big than inner pressed, thereby needing to go for the usefulness of the occasion of big yield filtration treatment.
Please in conjunction with Fig. 1 to Fig. 6 referring to shown in Figure 7, the utility model is like this work:
When needs filter former water, the former water water inlet pipe 8 of the filtering former water of need from housing 1 bottom entered in the housing 1; Because when initial, bundle fiber filtrate 31 in the filtration unit 3 is relaxation state, when carrying out filtration treatment, along with the filtering former water of needs enters housing 1, when water level rises to the position of gas distribution and water delivery device 5 gradually, the pressure Inlet and outlet water that is arranged on the gas distribution and water delivery device 5 transfers valve 51 to begin to work, increased resistance, the flase floor 4 that makes former water promote gas distribution and water delivery device 5 and be attached thereto moves upward, with 31 compactings of bundle fiber filtrate, when water level rose to certain position gradually, compressive force turnover water regulating valve 51 lost efficacy, resistance disappears, and former water just passes through from the filtering layer that is formed by bundle fiber filtrate 31 that is compacted smoothly; This moment, the porosity of filtering layer was minimum, can largely the solid shape pollutent in the former water be retained down, and after obtaining filtering by the filtering layer that is formed by bundle fiber filtrate 31 like this has been clear water; Clear water after this filtration flows out housing 1 by the filtration clear water output 10 that is arranged on housing 1 top, finishes filtration procedure.
When the work of water treatment purifier the reasonable time, when the retaining power of the filtering layer in the filtration unit 3 is saturated, in the time of need loosening cleaning to filtration unit 3, the rinse water of cleaning and filtrating equipment 3 is entered from the filtration clear water output 10 that is arranged on housing 1 top, rinse water is the filtering layer by being formed by bundle fiber filtrate 31 just, promoting filtering layer and gas distribution and water delivery device 5 moves downward along orienting device 6, filtering layer is loosened, the filtering layer that bundle fiber filtrate 31 forms will formerly be held back within it solid shape pollutent along with rinse water is taken out of filtering layer, from being arranged on the rinse water outlet outflow housing 1 of housing 1 bottom.
In the utility model, in order to guarantee cleaning performance, by the scavenging air intake header 9 of lower housing portion setting and the clean cloth device of air 7 that is positioned on the scavenging air intake header 9 and communicates with it thereof, scavenging air is carried out the control of gas speed, the bundle fiber filtrate 31 of pressurized air by being loosened, and make bundle fiber filtrate 31 produce shake, impel pollutent adsorbed on the bundle fiber filtrate 31 to come off, and along with rinse water is taken away, flow out housing, thereby guaranteed the effect that the filtering layer that formed by bundle fiber filtrate 31 and filtration unit 3 thereof clean, made bundle fiber filtrate 31 recover filtering function again.In sum, the efficient water treatment purifier of the utility model is owing to adopt the bundle fiber filtrate to form filtering layer, but the solid shape pollutent in the compacting fiber filtering layer effectively catching water loosens the fiber filtering layer and can carry out back flushing to the fiber filtering layer, to recover the effective strainability of fiber filtering layer; Simultaneously, because bundle fiber filtrate two ends hang on respectively on porous plate and movable rack plate, therefore can not coming off runs off has increased the life-span; And, make it applied range because the surface has the fiber of sterilizing function; In addition, be flexible coupling, can effectively alleviate the phenomenon of gas distribution and water delivery device and housing wall or orienting device generation jam owing to be provided with by the connecting strip of making as the glue material on the gas distribution and water delivery device; On gas distribution and water delivery device, be provided with in pulley and the container guide slot is installed, and leading sheave is installed on the orienting device, make gas distribution and water delivery device direction operation according to the rules, guarantee the compacting of filtering layer or loosen, make filtration unit carry out the maintenance of normal water treatment work and filtering layer cleaning recovery strainability, therefore very practical.
Claims (10)
1. efficient water treatment purifier, comprise: housing (1), be arranged on the raw water inlet (8) of housing (1) appropriate location, bottom, be arranged on the filtration clear water output (10) of housing (1) appropriate location, top, and the filtration unit (3) that is arranged on housing (1) middle part; It is characterized in that:
The bundle fiber filtrate (31) that described filtration unit (3) adopts, the upper and lower ends of this bundle fiber filtrate (31) are fixed on the flase floor (4) of the up-hole plate (2) that is separately positioned on housing (1) middle and upper part and housing (1) middle and lower part;
One gas distribution and water delivery device (5) is set under flase floor (4), and this gas distribution and water delivery device (5) links together by coupling device (41) and flase floor (4); Compressive force turnover water regulating valve (51) and leading sheave (52) are set on gas distribution and water delivery device (5); A plurality of orienting devices (6) that supply gas distribution and water delivery device (5) to move up and down are set in housing (1), and the leading sheave (52) of described gas distribution and water delivery device (5) moves up and down in orienting device (6).
2. efficient water treatment purifier as claimed in claim 1 is characterized in that also comprising:
Scavenging air inlet manifold (9), it is arranged on housing (1) bottom;
Clean cloth device of air (7), it is positioned to be connected on the scavenging air inlet manifold (9) and with scavenging air inlet manifold (9) and communicates.
3. efficient water treatment purifier as claimed in claim 1 is characterized in that also comprising: scavenging air outlet (11), this scavenging air outlet (11) is arranged on the top of housing (1).
4. efficient water treatment purifier as claimed in claim 1, it is characterized in that: described gas distribution and water delivery device (5) is divided into six, the aperture that supplies filtered water and scavenging air to pass through is set between every equably, links together by connecting strip (53) between each piece.
5. efficient water treatment purifier as claimed in claim 1 is characterized in that: the described orienting device (6) that is arranged in the housing (1) is perpendicular to and filters cross section and evenly setting.
6. as claim 1 or 5 described efficient water treatment purifiers, it is characterized in that: described orienting device (6) is three directed rod structures perpendicular to the even setting in filtration cross section, and the described leading sheave (52) that is arranged in gas distribution and water delivery device (5) downside moves up and down at the orienting device (6) of three directed rod structures with being sliding mode.
7. as claim 1 or 5 described efficient water treatment purifiers, it is characterized in that: described orienting device (6) is three guide slot structures perpendicular to the even setting in filtration cross section, and the described leading sheave (52) that is arranged in gas distribution and water delivery device (5) downside moves up and down at the orienting device (6) of three guide slot structures with being sliding mode.
8. efficient water treatment purifier as claimed in claim 1, it is characterized in that: described housing (1) inwall is provided with some guide slots (44), described gas distribution and water delivery device (5) outer lower portion is provided with directional wheel (43), and this directional wheel (43) moves up and down in guide slot (44).
9. efficient water treatment purifier as claimed in claim 1, it is characterized in that: set out mill weir (13) on described housing (1) top, on effluent weir (13) top water outlet water eliminator (14) is set, described filtration clear water output (10) is arranged on the lower side of effluent weir (13).
10. efficient water treatment purifier as claimed in claim 1 or 2 is characterized in that: described clean cloth device of air (7) is made up of a plurality of air arms, and the lower end of each air arm is connected with scavenging air inlet manifold (9) and communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036830 CN2723425Y (en) | 2004-06-28 | 2004-06-28 | High efficiency water treating and purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420036830 CN2723425Y (en) | 2004-06-28 | 2004-06-28 | High efficiency water treating and purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2723425Y true CN2723425Y (en) | 2005-09-07 |
Family
ID=35037055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420036830 Expired - Fee Related CN2723425Y (en) | 2004-06-28 | 2004-06-28 | High efficiency water treating and purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2723425Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323739C (en) * | 2004-10-18 | 2007-07-04 | 王可力 | Self-propelled traveling type scooter |
| CN102145233A (en) * | 2011-03-04 | 2011-08-10 | 宁波市建通环保科技有限公司 | Sewage filtering device |
| CN103792325A (en) * | 2014-02-18 | 2014-05-14 | 施世英 | Device and method for testing filter material |
-
2004
- 2004-06-28 CN CN 200420036830 patent/CN2723425Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323739C (en) * | 2004-10-18 | 2007-07-04 | 王可力 | Self-propelled traveling type scooter |
| CN102145233A (en) * | 2011-03-04 | 2011-08-10 | 宁波市建通环保科技有限公司 | Sewage filtering device |
| CN102145233B (en) * | 2011-03-04 | 2013-04-03 | 宁波市建通环保科技有限公司 | Sewage filtering device |
| CN103792325A (en) * | 2014-02-18 | 2014-05-14 | 施世英 | Device and method for testing filter material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101927342B1 (en) | Apparatus for treating filter media of non point pollution decrease equipment and non point pollution decrease equipment comprising the same | |
| CN111228866B (en) | Online self-cleaning medium filtering device | |
| CN102887553B (en) | Rotary filter screen type bar screen cleaner | |
| CN201179367Y (en) | Extrusion pressing type fibrous filter | |
| CN101843994A (en) | Method and device for filtering mechanically compressed vertical flow fiber bundle | |
| CN2723425Y (en) | High efficiency water treating and purifying device | |
| CN117164175B (en) | Waste water treatment device in kaolin processing | |
| CN201760139U (en) | Mechanical-regulation longitudinal flow fiber bundle filter device | |
| CN210163969U (en) | Gardens rainwater collection device | |
| CN101837208A (en) | Method and device for filtering upward-flow fiber bundle | |
| CN218421271U (en) | Sewage grading cleaning environmental protection equipment | |
| CN202022788U (en) | Fiber-bundle biofiltration device | |
| CN105327583A (en) | Oil mist smoke dust separating and purifying device and purifying method thereof | |
| CN2889444Y (en) | Mechanical decontamination filter | |
| CN107235522A (en) | A kind of industrial waste water disposal device | |
| KR20190081454A (en) | Filter washing type terraced filtering wetland | |
| CN2067600U (en) | Impact-spray combined duster | |
| CN105013222A (en) | Oily sewage filter device | |
| CN2265228Y (en) | high-effciency filter | |
| KR200327638Y1 (en) | Apparatus for removing floating matters | |
| CN2759570Y (en) | Gas filter | |
| CN2769254Y (en) | Automatic cleaning device for sewage filter | |
| CN211328343U (en) | Environmental engineering sewage recovery unit | |
| CN2877832Y (en) | Sieve pipe immersion highly effective wet dust collector | |
| CN117732172A (en) | Ceramic catalytic filter tube with high dust removal efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |