CN212142028U - Honeycomb activated carbon adsorption box - Google Patents
Honeycomb activated carbon adsorption box Download PDFInfo
- Publication number
- CN212142028U CN212142028U CN202020135233.3U CN202020135233U CN212142028U CN 212142028 U CN212142028 U CN 212142028U CN 202020135233 U CN202020135233 U CN 202020135233U CN 212142028 U CN212142028 U CN 212142028U
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- China
- Prior art keywords
- adsorption
- activated carbon
- honeycomb activated
- adsorption chamber
- filter
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- 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.)
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- 238000001179 sorption measurement Methods 0.000 title claims abstract description 133
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000000428 dust Substances 0.000 claims abstract description 25
- 239000004744 fabric Substances 0.000 claims abstract 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 17
- 231100000719 pollutant Toxicity 0.000 abstract description 17
- 238000001914 filtration Methods 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 10
- 238000000746 purification Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000000809 air pollutant Substances 0.000 abstract 1
- 231100001243 air pollutant Toxicity 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 36
- 229910052799 carbon Inorganic materials 0.000 description 10
- 239000000356 contaminant Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000037228 dieting effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a honeycomb activated carbon adsorption box, which belongs to the field of environmental protection equipment, and comprises a dust filter for filtering large particle pollutants poisoned by gas to be treated, an air inlet pipeline is connected with the input end of the dust filter, the output end of the dust filter is connected with the input end of a variable speed air pump, the output end of the variable speed air pump is connected with an electric control reversing valve, the output end of the electric control reversing valve is connected with an adsorption box body, the adsorption box body comprises a main adsorption chamber and an auxiliary adsorption chamber, two output ports of the electric control reversing valve are respectively communicated with the main adsorption chamber and the auxiliary adsorption chamber, a box cover is arranged above the adsorption box body, the adsorption box can filter and remove the large particle pollutants in the air through a cloth bag before adsorbing the air pollutants, the adsorption performance of the honeycomb activated carbon is maximized, and the gas to be treated can pass through the honeycomb activated carbon adsorption box at the limit speed, improve the purification efficiency, can also not shut down and change the filter core of honeycomb activated carbon adsorption case.
Description
Technical Field
The utility model relates to an environmental protection equipment field, more specifically say, relate to a honeycomb activated carbon adsorption case.
Background
The active carbon is a black porous solid carbon, and is produced by crushing and molding coal or carbonizing and activating uniform coal particles. The main component is carbon, and contains a small amount of elements such as oxygen, hydrogen, sulfur, nitrogen, chlorine and the like, so that the adsorbent has strong adsorption performance and is an industrial adsorbent with wide application.
The honeycomb activated carbon is prepared by using high-quality coal activated carbon as a raw material, pressing by a honeycomb die and activating and firing at high temperature. The pit activated carbon has the characteristics of large comparative area, small through hole resistance, developed micropores, high adsorption capacity, long service life and the like, and is widely applied to air pollution treatment. The pollutants capable of being removed to different degrees comprise nitrogen oxide, carbon tetrachloride, chlorine, benzene, formaldehyde, acetone, ethanol, diethyl ether, methanol, acetic acid, ethyl ester, styrene, phosgene, malodorous gas and other acid-base gases.
However, air pollution often has the characteristics of high pollutant diffusion speed and large volume of polluted gas, and a large amount of gas is often required to be treated in the practical application of the honeycomb activated carbon adsorption box. Accelerating gas to pass through honeycomb activated carbon adsorption case, probably causing the adsorption efficiency not good, it is unsatisfactory to purify the result, increases honeycomb activated carbon adsorption case's use amount, will improve and purify the cost.
Once inhalable particles such as dust, oil smoke and the like exist in the air, when the honeycomb activated carbon adsorption box is used, the honeycomb activated carbon is easy to block micropores on the surface by the inhalable particles, the adsorption effect is reduced, the effective utilization rate of the honeycomb activated carbon is poor, and the purification effect is not ideal.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a honeycomb activated carbon adsorption case, it can realize adsorbing before getting rid of air contaminant, the large granule pollutant in the air is filtered through the sack earlier, and the adsorption performance of the performance honeycomb activated carbon of maximize, and can make pending gas pass through honeycomb activated carbon adsorption case with ultimate speed, improves purification efficiency, can also not shut down the filter core of changing honeycomb activated carbon adsorption case.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A honeycomb activated carbon adsorption box comprises a dust filter for filtering large particle pollutants poisoned by gas to be treated, wherein the input end of the dust filter is connected with an air inlet pipeline, the output end of the dust filter is connected with the input end of a variable speed air pump, the output end of the variable speed air pump is connected with an electric control reversing valve, the output end of the electric control reversing valve is connected with an adsorption box body, the adsorption box body comprises a main adsorption chamber and an auxiliary adsorption chamber, and two output ports of the electric control reversing valve are respectively led to the main adsorption chamber and the auxiliary adsorption chamber;
two box covers are arranged above the adsorption box body and respectively cover the main adsorption chamber and the auxiliary adsorption chamber, an output pipeline is arranged below the adsorption box body, one end of the output pipeline, which is far away from the adsorption box body, is provided with an electric control three-way valve, the other two interfaces of the electric control three-way valve are respectively connected with a return pipeline and an exhaust pipe, the return pipeline leads to the auxiliary adsorption chamber, and filter elements are arranged in the main adsorption chamber and the auxiliary adsorption chamber;
the filter core includes filter core housing, filter core housing intussuseption is filled with honeycomb activated carbon, filter core housing's frame department is opened the chisel and is had the groove of accomodating, accomodate the inslot and install the lifting rope, the renew cartridge of being convenient for, adsorb the below of internal filter core of box and install the detector, detector passing signal line is connected with the controller, and the output passing signal line of controller connects automatically controlled switching-over valve, variable speed air pump and automatically controlled three-way valve respectively, can realize before adsorbing and get rid of air contaminant, filters the large granule pollutant in the detach air through the sack earlier, and the adsorption efficiency of the performance honeycomb activated carbon of maximize, and can make pending gas pass through honeycomb activated carbon adsorption box with ultimate speed, improve purification efficiency, can also not shut down the filter core of changing honeycomb activated carbon adsorption box.
Furthermore, the dust filter is a bag filter, so that large-particle pollutants in the gas can be effectively filtered, and the filtering cost is reduced.
Furthermore, a one-way valve is installed at the output end of the auxiliary adsorption chamber, so that gas discharged from the main adsorption chamber is prevented from entering the auxiliary adsorption chamber from the output end of the auxiliary adsorption chamber.
Furthermore, the outside parcel of honeycomb active carbon has the non-woven fabrics filter bag, prevents that the honeycomb active carbon piece from causing dust pollution in getting into gas.
Furthermore, the welding has fixed frame on the indoor lateral wall of main adsorption chamber and vice adsorption chamber for place the filter core.
Furthermore, a sealing strip is filled between the box cover and the adsorption box body, so that gas leakage in adsorption and filtration operation is prevented.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) this scheme can realize adsorbing before getting rid of air contaminant, the large granule pollutant in the deaerate through the sack earlier, and the adsorption performance of the performance honeycomb activated carbon of maximize, and can make pending gas pass through the honeycomb activated carbon adsorption case with ultimate speed, improves purification efficiency, can also not shut down the filter core of changing honeycomb activated carbon adsorption case.
(2) The dust filter is a bag filter, so that the filtering cost is reduced while large-particle pollutants in the gas are effectively filtered.
(3) The output end of the auxiliary adsorption chamber is provided with a one-way valve, so that gas discharged from the main adsorption chamber is prevented from entering the auxiliary adsorption chamber from the output end of the auxiliary adsorption chamber.
(4) The outside parcel of honeycomb active carbon has the non-woven fabrics filter bag, prevents that the honeycomb active carbon piece from causing dust pollution in getting into gas.
(5) The welding has fixed frame on main adsorption chamber and the indoor lateral wall of vice adsorption chamber for place the filter core.
(6) The sealing strip is filled between the box cover and the adsorption box body, so that gas leakage in adsorption and filtration operation is prevented.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the adsorption box of the present invention;
fig. 3 is a schematic view of the adsorption filter element structure of the present invention.
The reference numbers in the figures illustrate:
1 air inlet pipeline, 2 dust filter, 3 electric control reversing valve, 4 variable speed air pump, 5 box cover, 6 adsorption box body, 601 main adsorption chamber, 602 auxiliary adsorption chamber, 7 controller, 8 return pipeline, 9 filter element, 901 filter element shell, 902 holding groove, 903 lifting rope, 904 honeycomb activated carbon and 10 detector.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a honeycomb activated carbon adsorption tank comprises a dust filter 2 for filtering large particle pollutants poisoned by a gas to be treated, wherein the dust filter 2 is a bag type dust filter, the filtering cost is reduced while the large particle pollutants in the gas are effectively filtered, an input end of the dust filter 2 is connected with an air inlet pipeline 1, an output end of the dust filter 2 is connected with an input end of a variable speed air pump 4, an output end of the variable speed air pump 4 is connected with an electrically controlled reversing valve 3, and an output end of the electrically controlled reversing valve 3 is connected with an adsorption tank body 6;
referring to fig. 1-2, the adsorption tank 6 includes a main adsorption chamber 601 and an auxiliary adsorption chamber 602, two output ports of the electrically controlled directional valve 3 are respectively led to the main adsorption chamber 601 and the auxiliary adsorption chamber 602, the output end of the auxiliary adsorption chamber 602 is installed with a one-way valve to prevent the gas exhausted from the main adsorption chamber 601 from entering the auxiliary adsorption chamber 602 from the output end of the auxiliary adsorption chamber 602, a tank cover 5 is installed above the adsorption tank 6, a sealing strip is filled between the tank cover 5 and the adsorption tank 6 to prevent gas leakage during adsorption filtration operation, and the two tank covers 5 are respectively covered above the main adsorption chamber 601 and the auxiliary adsorption chamber 602, an output pipeline is installed below the adsorption tank 6, one end of the output pipeline far from the adsorption tank 6 is installed with an electrically controlled three-way valve, the other two ports of the electrically controlled three-way valve are respectively connected with a backflow pipeline 8 and an exhaust pipe, and the backflow pipeline 8 leads to, the filter elements 9 are arranged in the main adsorption chamber 601 and the auxiliary adsorption chamber 602, and fixed frames are welded on the inner side walls of the main adsorption chamber 601 and the auxiliary adsorption chamber 602 and used for placing the filter elements 9;
referring to fig. 1-3, the filter element 9 includes a filter element housing 901, a honeycomb activated carbon 904 is filled in the filter element housing 901, a non-woven fabric filter bag is wrapped outside the honeycomb activated carbon 904, so as to prevent debris of the honeycomb activated carbon 904 from entering air to cause dust pollution, a housing groove 902 is opened at a frame of the filter element housing 901, a lifting rope 903 is installed in the housing groove 902, so as to facilitate replacement of the filter element 9, a detector 10 is installed below the filter element 9 in the adsorption box 6, the detector 10 is connected with a controller 7 through a signal line, and an output end of the controller 7 is connected with an electric control reversing valve 3, a speed change air pump 4 and an electric control three-way valve through signal lines respectively.
When the device is used, the gas inlet pipeline 1 is connected with a discharge device of gas to be treated, the gas to be treated is firstly filtered by the dust filter 2, the filtered gas is led to the main adsorption chamber 601 of the adsorption box body 6 through the variable speed air pump 4 and is exhausted after being adsorbed and filtered by the filter element 9 in the main adsorption chamber 601, the gas after being adsorbed and filtered by the filter element 9 is contacted with the detector 10, a certain pollutant inevitably contained in the gas to be treated is taken as a detection scale, if the gas after being adsorbed and filtered does not contain the pollutant, the adsorbed gas is normally exhausted, meanwhile, the variable speed air pump 4 accelerates to extract air, the speed of the gas passing through the filter element 9 in the main adsorption chamber 601 is improved until the gas after being adsorbed and filtered contains the pollutant of the detection scale, the electric control three-way valve seals the exhaust pipe and is communicated with the backflow pipeline 8, the auxiliary adsorption chamber 602 is started to circularly adsorb the gas to be, when the gas after adsorption and filtration does not contain detection scale pollutants, the electric control three-way valve closes the backflow pipeline 8, and the gas after adsorption is normally discharged, so that the filter element 9 in the main adsorption chamber 601 is ensured to be at the limit adsorption speed, and the purification efficiency is improved;
speed change air pump 4 slows down to predetermineeing the minimum, filter core 9 in the main adsorption chamber 601 reaches the absorption limit and can't continue the absorption back promptly, automatically controlled switching-over valve 3 switching-over, gas after will straining dust filter 2 filters directly accesss to vice adsorption chamber 602, simultaneously controller 7 reports to the police and suggests the staff and change filter core 9 in the main adsorption chamber 601, after finishing changing operation control ware 7 makes automatically controlled switching-over valve 3 reset, can realize before adsorbing the air contaminant of getting rid of, filter the large granule pollutant in the air through the sack earlier, the adsorption efficiency of the performance honeycomb active carbon of maximize, and can make pending gas pass through honeycomb active carbon adsorption tank with ultimate speed, the purification efficiency is improved, can also not shut down the filter core of changing honeycomb active carbon adsorption tank.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (6)
1. The utility model provides a honeycomb activated carbon adsorption case, includes dust filter (2), its characterized in that: the input end of the dust filter (2) is connected with an air inlet pipeline (1), the output end of the dust filter (2) is connected with the input end of a variable speed air pump (4), the output end of the variable speed air pump (4) is connected with an electric control reversing valve (3), the output end of the electric control reversing valve (3) is connected with an adsorption box body (6), the adsorption box body (6) comprises a main adsorption chamber (601) and an auxiliary adsorption chamber (602), and two output ports of the electric control reversing valve (3) are respectively led to the main adsorption chamber (601) and the auxiliary adsorption chamber (602);
the adsorption tank is characterized in that two tank covers (5) are arranged above the adsorption tank body (6), the two tank covers (5) are respectively covered above the main adsorption chamber (601) and the auxiliary adsorption chamber (602), an output pipeline is arranged below the adsorption tank body (6), one end, far away from the adsorption tank body (6), of the output pipeline is provided with an electric control three-way valve, other two interfaces of the electric control three-way valve are respectively connected with a backflow pipeline (8) and an exhaust pipe, the backflow pipeline (8) is communicated with the auxiliary adsorption chamber (602), and filter elements (9) are respectively arranged in the main adsorption chamber (601) and the auxiliary adsorption chamber (602);
the filter element (9) comprises a filter element shell (901), honeycomb activated carbon (904) is filled in the filter element shell (901), a containing groove (902) is formed in the frame of the filter element shell (901), a lifting rope (903) is installed in the containing groove (902), a detector (10) is installed below the filter element (9) in the adsorption box body (6), the detector (10) is connected with a controller (7) through a signal line, and the output end of the controller (7) is connected with an electric control reversing valve (3), a variable speed air pump (4) and an electric control three-way valve through signal lines respectively.
2. The honeycomb activated carbon adsorption tank of claim 1, wherein: the dust filter (2) is a cloth bag type dust filter.
3. The honeycomb activated carbon adsorption tank of claim 1, wherein: and the output end of the auxiliary adsorption chamber (602) is provided with a one-way valve.
4. The honeycomb activated carbon adsorption tank of claim 1, wherein: the outside of the honeycomb activated carbon (904) is wrapped with a non-woven fabric filter bag.
5. The honeycomb activated carbon adsorption tank of claim 1, wherein: the welding has fixed frame on main adsorption chamber (601) and vice adsorption chamber (602) inside wall, place filter core (9) on the fixed frame.
6. The honeycomb activated carbon adsorption tank of claim 1, wherein: and a sealing strip is filled between the box cover (5) and the adsorption box body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020135233.3U CN212142028U (en) | 2020-01-21 | 2020-01-21 | Honeycomb activated carbon adsorption box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020135233.3U CN212142028U (en) | 2020-01-21 | 2020-01-21 | Honeycomb activated carbon adsorption box |
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| Publication Number | Publication Date |
|---|---|
| CN212142028U true CN212142028U (en) | 2020-12-15 |
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ID=73711325
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020135233.3U Expired - Fee Related CN212142028U (en) | 2020-01-21 | 2020-01-21 | Honeycomb activated carbon adsorption box |
Country Status (1)
| Country | Link |
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| CN (1) | CN212142028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115436489A (en) * | 2022-08-16 | 2022-12-06 | 滁州职业技术学院 | Experimental device for volatile environmental pollutant adsorption efficiency in evaluation gas phase |
-
2020
- 2020-01-21 CN CN202020135233.3U patent/CN212142028U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115436489A (en) * | 2022-08-16 | 2022-12-06 | 滁州职业技术学院 | Experimental device for volatile environmental pollutant adsorption efficiency in evaluation gas phase |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |