CN114011146A - Environment-friendly filter device for triphenyl phosphite production and use method thereof - Google Patents
Environment-friendly filter device for triphenyl phosphite production and use method thereof Download PDFInfo
- Publication number
- CN114011146A CN114011146A CN202111363018.4A CN202111363018A CN114011146A CN 114011146 A CN114011146 A CN 114011146A CN 202111363018 A CN202111363018 A CN 202111363018A CN 114011146 A CN114011146 A CN 114011146A
- Authority
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- Prior art keywords
- shell
- triphenyl phosphite
- purifying
- production
- 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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Links
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 239000000383 hazardous chemical Substances 0.000 claims abstract description 4
- 238000000746 purification Methods 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 240000004307 Citrus medica Species 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
Abstract
The invention discloses an environment-friendly filter device for triphenyl phosphite production and a use method thereof, and the filter device comprises a shell with openings at two ends, wherein a filtering component for filtering raw materials for triphenyl phosphite production is hermetically arranged in the shell; the filtering assembly comprises a front cover which is hermetically arranged at the front end opening of the shell and a rear frame which is hermetically arranged at the rear end opening of the shell, two V-shaped filter screens are sequentially arranged at intervals in the axial direction in the shell, clamping strips are arranged at the top and the bottom of each V-shaped filter screen, and corresponding L-shaped mounting blocks for clamping the clamping strips are respectively arranged at the top and the bottom of the inner side of the shell; the rear frame outside is provided with the discharge subassembly that is arranged in purifying triphenyl phosphite produced hazardous substance in the production, arranges in proper order through the inside axial direction in the casing and is provided with two V type filter screens, and the V type filter screen of V type structure makes the big and efficient of filter sectional area, ensures under the condition of equal filter material, reaches better filter effect.
Description
Technical Field
The invention belongs to the technical field of triphenyl phosphite production, and particularly relates to a filtering device for environment-friendly triphenyl phosphite production and a using method thereof.
Background
The environment-friendly triphenyl phosphite is an auxiliary antioxidant with excellent performance, an additive type flame-retardant plasticizer and a plastic product anti-aging agent. Widely used in various polyolefin, polyester, ABS resin and epoxy resin products. Can effectively enhance the light stability of the product and keep the transparency of the product. Also a chelating agent and a stabilizing agent in PVC products, and is an important intermediate for preparing trialkyl phosphite.
In the production process of the prior triphenyl phosphite, the raw materials contain impurities which influence the formation of triphenyl phosphite, and the use effect after molding can be influenced if the triphenyl phosphite is directly prepared, so that the antioxidant effect is poor.
Disclosure of Invention
The invention aims to provide a filtering device for producing environment-friendly triphenyl phosphite and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the environment-friendly filter device for producing triphenyl phosphite comprises a shell with openings at two ends, wherein a filter component for filtering raw materials for producing triphenyl phosphite is hermetically arranged in the shell;
the filtering assembly comprises a front cover which is hermetically arranged at the front end opening of the shell and a rear frame which is hermetically arranged at the rear end opening of the shell, two V-shaped filter screens are sequentially arranged at intervals in the axial direction in the shell, clamping strips are arranged at the top and the bottom of each V-shaped filter screen, and corresponding L-shaped mounting blocks for clamping the clamping strips are respectively arranged at the top and the bottom of the inner side of the shell;
the outer side of the rear frame is provided with a discharge assembly for purifying hazardous substances generated in the production of triphenyl phosphite;
the discharge assembly comprises a purification pipeline fixedly connected to the outer side of the rear frame, the left side of the lower portion of the outer surface of the purification pipeline and the right side of the lower portion of the outer surface of the purification pipeline are fixedly connected with the chassis, and the purification pipeline is far away from a water outlet pipe fixedly connected to one side of the rear frame.
Preferably, the outside of casing is provided with annotates the material subassembly, annotate the material subassembly including seting up the notes silo in the casing outside, be equipped with on the notes silo and be used for sealing the shielding plate in notes silo.
Preferably, a bolt clamping sleeve is embedded around the material injection groove, and a through hole is formed in the edge of the shielding plate corresponding to the position of the bolt clamping sleeve, so that a screw penetrates through the through hole to be connected with the bolt clamping sleeve to fix the shielding plate.
Preferably, the purifying pipeline is internally provided with three filtering steel rings, and the lower part of the outer surface, the front part of the outer surface and the rear part of the outer surface of the three filtering steel rings are fixedly connected with cross rods.
Preferably, the three filtering steel rings are sleeved with the purifying cavity between every two filtering steel rings, the three filtering steel rings and the three cross rods jointly form a frame of the discharging assembly, and the frame is sleeved with the inside of the purifying pipeline.
Preferably, two purify equal fixedly connected with bails in chamber surface upper portion, and two purify the chamber and can draw out from adjacent two filtration steel rings through this bail.
Preferably, activated carbon is filled between the two V-shaped filter screens. Preferably, the V-shaped filter screen is provided with one V-shaped groove or more than one V-shaped groove arranged side by side.
Preferably, the mesh holes are arranged on the front cover, and two handles are arranged on the outer side of the front cover.
A using method of a filtering device for producing environment-friendly triphenyl phosphite comprises the following steps,
step A, welding clamping strips at two ends of one V-shaped filter screen and then sending the V-shaped filter screen into a shell, clamping the welding clamping strips at two sides of the V-shaped filter screen with L-shaped mounting blocks arranged at the top and the bottom of the inner side of the shell to fix the V-shaped filter screen, and then mounting the other V-shaped filter screen according to the same steps;
step B, respectively connecting the front cover and the rear frame with the front end opening and the rear end opening of the shell in a sealing manner, installing the purifying pipeline on the outer side of the rear frame through the bottom frame, taking out the screw from the through hole by using a tool, taking down the bolt clamping sleeve and the shielding plate, and pouring materials for adsorbing impurities in the triphenyl phosphite production raw materials into the material injection groove;
step C, when raw materials for producing triphenyl phosphite pass through two V-shaped filter screens and then are led into a purification pipeline, sewage filtered by the V-shaped filter screens enters the purification pipeline, enters a left purification cavity from a left side filtering steel ring, passes through a right purification cavity, flows out of a right side filtering steel ring and is finally discharged from a water outlet pipe;
and D, when the purifying materials in the purifying cavity need to be replaced, opening the water outlet pipe, drawing the purifying cavity out of the purifying pipeline, drawing the purifying cavity out of the space between the two adjacent filtering steel rings through the lifting ring, and replacing the purifying materials inside.
The invention has the technical effects and advantages that: according to the filter device for producing the environment-friendly triphenyl phosphite and the use method thereof, the two V-shaped filter screens are sequentially arranged in the axial direction in the shell, the V-shaped filter screens with the V-shaped structures enable the filter section area to be large and the efficiency to be high, a better filter effect is achieved under the condition that the same filter material is ensured, the V-shaped structures can ensure that the filter material is fully contacted with air in a limited space, the better filter effect is achieved, when the purification material in the purification cavity needs to be replaced, the water outlet pipe is opened, the purification cavity is drawn out from the purification pipeline, the purification cavity is drawn out from between two adjacent filter steel rings through the lifting ring, the purification material can be conveniently replaced, and the cost is saved.
Drawings
FIG. 1 is a schematic view of an overall first perspective structure of the present invention;
FIG. 2 is a schematic structural view of an L-shaped mounting block of the present invention;
FIG. 3 is a schematic view of a filter assembly according to the present disclosure;
FIG. 4 is a schematic view of the construction of the purge line of the present invention;
fig. 5 is a schematic structural view of the filter steel ring of the present invention.
In the figure: 1. a housing; 2. a filter assembly; 201. a front cover; 202. a handle; 203. a V-shaped filter screen; 204. clamping the strip; 205. mesh openings; 206. a rear frame; 3. a material injection assembly; 301. a bolt ferrule; 302. a shielding plate; 4. a discharge assembly; 401. purifying the pipeline; 402. a chassis; 403. a water outlet pipe; 404. a cross bar; 405. a purification chamber; 406. filtering the steel ring; 5. an L-shaped mounting block.
Detailed Description
The technical solution 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.
In order to improve the filtering effect and the filtering efficiency of raw materials for producing triphenyl phosphite, referring to fig. 1, fig. 2 and fig. 3, the filter comprises a casing 1 with openings at two ends, a filtering component 2 for filtering raw materials for producing triphenyl phosphite is hermetically arranged in the casing 1, the filtering component 2 comprises a front cover 201 hermetically arranged at the front end opening of the casing 1 and a rear frame 206 hermetically arranged at the rear end opening of the casing 1, two V-shaped filter screens 203 are sequentially arranged at intervals in the axial direction in the casing 1, clamping strips 204 are respectively arranged at the top and the bottom of the V-shaped filter screens 203, L-shaped mounting blocks 5 for clamping the clamping strips 204 are respectively arranged at the top and the bottom of the inner side of the casing 1, activated carbon is filled between the two V-shaped filter screens 203, the V-shaped filter screens 203 are provided with one V-shaped groove or more than one V-shaped groove arranged side by side, the front cover 201 is provided with meshes 205 arranged, the outer side of the front cover 201 is provided with two handles 202, the outer side of the shell 1 is provided with a material injection assembly 3, the material injection assembly 3 comprises a material injection groove arranged on the outer side of the shell 1, the material injection groove is provided with a baffle plate 302 for sealing the material injection groove, bolt cutting sleeves 301 are embedded around the material injection groove, the edge of the baffle plate 302 is provided with a through hole corresponding to the position of the bolt cutting sleeves 301, so that a screw passes through the through hole to connect the bolt cutting sleeves 301 to fix the baffle plate 302, activated carbon is filled between the two V-shaped filter screens 203, other materials with adsorption effect can be adopted, after the two V-shaped filter screens 203 are assembled, the activated carbon is filled between the two V-shaped filter screens 203 from the material injection groove, then the baffle plate 302 is sealed on the material injection groove, the assembly is simple and convenient, the clamping strip 204 can also be a citron which is integrally formed with the V-shaped filter screens 203, the production cost is reduced, and the clamping strip 204 is clamped with the L-shaped mounting block 5, be convenient for install and dismantle V type filter screen 203, of course, can also adopt other fixed mode that can make V type filter screen 203 fix in casing 1, the contained angle in V type groove need set up at 40 degrees to 60 degrees within ranges to avoid the contained angle undersize can lead to casing 1's length longer to lead to manufacturing cost higher, perhaps contained angle is too big, makes the resistance that V type filter screen 203 formed great, and its filtration efficiency is higher and manufacturing cost is lower.
In order to facilitate the replacement of the purification material in the purification cavity 405, referring to fig. 3, 4 and 5, a discharge assembly 4 for purifying hazardous substances generated in the production of triphenyl phosphite is arranged outside the rear frame 206, the discharge assembly 4 includes a purification pipe 401 fixedly connected to the outside of the rear frame 206, the left side of the lower part of the outer surface of the purification pipe 401 and the right side of the lower part of the outer surface are both fixedly connected with a bottom frame 402, one side of the purification pipe 401 away from the rear frame is fixedly connected with a water outlet pipe 403, a plurality of filter steel rings 406 are arranged in the purification pipe 401, the lower parts of the outer surfaces, the front parts of the outer surfaces and the rear parts of the outer surfaces of the three filter steel rings 406 are all fixedly connected with cross rods 404, the purification cavity 405 is sleeved between every two of the three filter steel rings 404, the three filter steel rings 404 and the three cross rods 404 jointly form a frame of the discharge assembly 4, and the frame is sleeved with the interior of the purification pipe 401, outlet pipe 403 can be unscrewed from the purification pipeline 401 right side, purifies the equal fixedly connected with bail in chamber 405 surface upper portion, is in the same place through screw thread swing joint between purification pipeline 401 and the outlet pipe 403, and two purification chambers 405 can draw out from adjacent two filtration steel rings 406 through this bail, and the detachable construction that constitutes like this can conveniently change and purify the core, practices thrift the cost.
A using method of a filtering device for producing environment-friendly triphenyl phosphite comprises the following steps,
step A, firstly welding two end parts of one V-shaped filter screen 203 with clamping strips 204, then sending the V-shaped filter screen into the shell 1, clamping the clamping strips 204 welded on two sides of the V-shaped filter screen 203 with the L-shaped mounting blocks 5 arranged at the top and the bottom of the inner side of the shell 1, fixing the V-shaped filter screen 203, and then mounting the other V-shaped filter screen 203 according to the same steps;
step B, respectively connecting the front cover 201 and the rear frame 206 with the front end opening and the rear end opening of the shell 1 in a sealing manner, installing the purifying pipeline 401 outside the rear frame 206 through the underframe 402, taking out screws from the through holes by using tools, taking down the bolt clamping sleeve 301 and the shielding plate 302, and pouring materials for adsorbing impurities in the raw materials for producing triphenyl phosphite into the material injection groove;
step C, when raw materials for producing triphenyl phosphite pass through the two V-shaped filter screens 203 and then are led into the purifying pipeline 401, sewage filtered by the V-shaped filter screens 203 enters the purifying pipeline 401, enters the left purifying cavity 405 from the left filtering steel ring 406, passes through the right purifying cavity 405, flows out from the right filtering steel ring 406, and is finally discharged from the water outlet pipe 403;
and D, when the purifying material in the purifying cavity 405 needs to be replaced, opening the water outlet pipe 403, drawing the purifying cavity 405 out of the purifying pipeline 401, drawing the purifying cavity 405 out of the space between two adjacent filtering steel rings 406 through a lifting ring, and replacing the purifying material in the purifying cavity.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an environment-friendly triphenyl phosphite is filter equipment for production which characterized in that: the filter comprises a shell (1) with two open ends, wherein a filtering component (2) for filtering raw materials for producing triphenyl phosphite is hermetically arranged in the shell (1);
the filter assembly (2) comprises a front cover (201) which is hermetically arranged at the front end opening of the shell (1) and a rear frame (206) which is hermetically arranged at the rear end opening of the shell (1), two V-shaped filter screens (203) are sequentially arranged at intervals in the axial direction in the shell (1), clamping strips (204) are arranged at the top and the bottom of each V-shaped filter screen (203), and L-shaped mounting blocks (5) which are correspondingly used for clamping the clamping strips (204) are respectively arranged at the top and the bottom of the inner side of the shell (1);
the outer side of the rear frame (206) is provided with a discharge assembly (4) for purifying hazardous substances generated in the production of triphenyl phosphite;
the discharge assembly (4) comprises a purification pipeline (401) fixedly connected to the outer side of the rear frame (206), the left side of the lower portion of the outer surface of the purification pipeline (401) and the right side of the lower portion of the outer surface of the purification pipeline are fixedly connected with an underframe (402), and the purification pipeline (401) is far away from a water outlet pipe (403) fixedly connected to one side of the rear frame.
2. The filter equipment is used in production of environment-friendly triphenyl phosphite of claim 1, characterized in that: the outer side of the shell (1) is provided with an injection assembly (3), the injection assembly (3) comprises an injection groove arranged on the outer side of the shell (1), and a baffle plate (302) used for sealing the injection groove is arranged on the injection groove.
3. The filter equipment is used in production of environment-friendly triphenyl phosphite of claim 2, characterized in that: bolt cutting sleeves (301) are embedded around the material injection groove, and through holes are formed in the edge of the shielding plate (302) corresponding to the positions of the bolt cutting sleeves (301) so that screws can penetrate through the through holes to be connected with the bolt cutting sleeves (301) to fix the shielding plate (302).
4. The filter equipment for producing triphenyl phosphite of claim 1, wherein: the purifying device is characterized in that three filtering steel rings (406) are arranged in the purifying pipeline (401), and cross rods (404) are fixedly connected to the lower part of the outer surface, the front part of the outer surface and the rear part of the outer surface of the three filtering steel rings (406).
5. The environment-friendly triphenyl phosphite production filter equipment of claim 4, wherein: the purification cavity (405) is sleeved between every two of the three filtering steel rings (404), the three filtering steel rings (404) and the three cross rods (404) jointly form a frame of the discharge assembly (4), and the frame is sleeved with the interior of the purification pipeline (401).
6. The filter equipment is used in production of environment-friendly triphenyl phosphite of claim 5, which is characterized in that: two purify chamber (405) surface upper portion all fixedly connected with bails, and two purify chamber (405) and can draw out from adjacent two filtration steel rings (406) through this bails.
7. The filter equipment is used in production of environment-friendly triphenyl phosphite of claim 1, characterized in that: activated carbon is filled between the two V-shaped filter screens (203).
8. The filter equipment is used in production of environment-friendly triphenyl phosphite of claim 1, characterized in that: the V-shaped filter screen (203) is provided with one V-shaped groove or more than one V-shaped groove arranged side by side.
9. The filter equipment is used in production of environment-friendly triphenyl phosphite of claim 1, characterized in that: the mesh holes (205) are arranged on the front cover (201), the handles (202) are arranged on the outer side of the front cover (201), and the number of the handles (202) is two.
10. The use method of the filter device for producing triphenyl phosphite of any one of claims 1-9, wherein the filter device comprises: comprises the following steps of (a) carrying out,
firstly, welding clamping strips (204) at two ends of one V-shaped filter screen (203) and then sending the V-shaped filter screen into a shell (1), clamping the welding clamping strips (204) at two sides of the V-shaped filter screen (203) with L-shaped mounting blocks (5) arranged at the top and the bottom of the inner side of the shell (1) to fix the V-shaped filter screen (203), and then mounting the other V-shaped filter screen (203) according to the same steps;
step (B), respectively connecting the front cover (201) and the rear frame (206) with the front end and the rear end opening of the shell (1) in a sealing manner, installing the purifying pipeline (401) on the outer side of the rear frame (206) through the bottom frame (402), taking out a screw from a through hole by using a tool, taking down the bolt clamping sleeve (301) and the shielding plate (302), and pouring materials for adsorbing impurities in the triphenyl phosphite production raw materials into the material injection groove;
step (C), when raw materials for producing triphenyl phosphite pass through two V-shaped filter screens (203) and then are led into a purifying pipeline (401), sewage filtered by the V-shaped filter screens (203) enters the purifying pipeline (401), enters a left purifying cavity (405) from a left filtering steel ring (406), passes through a right purifying cavity (405), then flows out from a right filtering steel ring (406), and is finally discharged from a water outlet pipe (403);
and (D) when the purifying material in the purifying cavity (405) needs to be replaced, opening the water outlet pipe (403), drawing the purifying cavity (405) out of the purifying pipeline (401), drawing the purifying cavity (405) out of the space between two adjacent filtering steel rings (406) through the lifting ring, and replacing the purifying material in the purifying cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363018.4A CN114011146A (en) | 2021-11-17 | 2021-11-17 | Environment-friendly filter device for triphenyl phosphite production and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363018.4A CN114011146A (en) | 2021-11-17 | 2021-11-17 | Environment-friendly filter device for triphenyl phosphite production and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114011146A true CN114011146A (en) | 2022-02-08 |
Family
ID=80064887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111363018.4A Pending CN114011146A (en) | 2021-11-17 | 2021-11-17 | Environment-friendly filter device for triphenyl phosphite production and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114011146A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353290A (en) * | 2014-10-28 | 2015-02-18 | 东莞市升微机电设备科技有限公司 | Filter device |
| EP2800617A4 (en) * | 2012-01-02 | 2016-03-09 | Camfil Usa Inc | V-bank filter assembly with replaceable filters |
| CN110115866A (en) * | 2019-05-30 | 2019-08-13 | 王瑞 | A kind of sewage-treatment plant of multistage filtering |
| CN213853369U (en) * | 2020-12-02 | 2021-08-03 | 成都三湘太化环境科技有限公司 | Energy-saving purifier for sewage treatment |
-
2021
- 2021-11-17 CN CN202111363018.4A patent/CN114011146A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2800617A4 (en) * | 2012-01-02 | 2016-03-09 | Camfil Usa Inc | V-bank filter assembly with replaceable filters |
| CN104353290A (en) * | 2014-10-28 | 2015-02-18 | 东莞市升微机电设备科技有限公司 | Filter device |
| CN110115866A (en) * | 2019-05-30 | 2019-08-13 | 王瑞 | A kind of sewage-treatment plant of multistage filtering |
| CN213853369U (en) * | 2020-12-02 | 2021-08-03 | 成都三湘太化环境科技有限公司 | Energy-saving purifier for sewage treatment |
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Application publication date: 20220208 |