CN114394635B - Separator washing liquid collection processing apparatus - Google Patents
Separator washing liquid collection processing apparatus Download PDFInfo
- Publication number
- CN114394635B CN114394635B CN202210029036.7A CN202210029036A CN114394635B CN 114394635 B CN114394635 B CN 114394635B CN 202210029036 A CN202210029036 A CN 202210029036A CN 114394635 B CN114394635 B CN 114394635B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- waste liquid
- oxidation
- tank
- separator
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 97
- 238000005406 washing Methods 0.000 title claims abstract description 42
- 238000012545 processing Methods 0.000 title claims abstract description 5
- 230000003647 oxidation Effects 0.000 claims abstract description 80
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 80
- 239000002699 waste material Substances 0.000 claims abstract description 76
- 238000011084 recovery Methods 0.000 claims abstract description 48
- 239000010865 sewage Substances 0.000 claims abstract description 42
- 238000004537 pulping Methods 0.000 claims description 9
- 239000012452 mother liquor Substances 0.000 claims description 5
- 238000010009 beating Methods 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 15
- 229920000728 polyester Polymers 0.000 description 10
- 238000007599 discharging Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
Abstract
The invention discloses a separator washing liquid collecting and processing device, and belongs to the field of chemical product separation equipment. The invention comprises an oxidation separator and a discharge header A, wherein a pipeline is connected between the oxidation separator and the discharge header A. The discharge header a discharges wastewater into an oxidation lagoon. The side of the discharge header A is connected with a waste liquid recovery tank, the top of the waste liquid recovery tank is connected with a waste liquid recovery tank washing tower, the bottom of the waste liquid recovery tank is connected with an oxidation sewage pump through a waste liquid conveying pump, the oxidation sewage pump is connected with an oxidation sewage tank, and the side of a pipeline between the oxidation sewage pump and the waste liquid conveying pump is respectively connected with a waste liquid recovery tank and an intermittent waste water-to-sewage treatment tank. The invention effectively solves the problem of on-site discharge of waste liquid generated in the operation processes of water washing, alkali washing, replacement and the like of PTA, avoids resource waste and unorganized discharge, and realizes closed treatment and recovery of the waste liquid.
Description
Technical Field
The invention relates to a separator washing liquid collecting and processing device, and belongs to the field of chemical product separation equipment.
Background
PTA is refined terephthalic acid, is one of important large organic raw materials, is mainly used for producing polyester fibers (polyester), polyester bottle flakes and polyester films, and is widely used for various aspects of national economy such as chemical fibers, light industry, electronics, buildings and the like, and is closely related to the living standard of people. The purified terephthalic acid PTA is mainly used for producing polyester. The polyester fiber is the most main variety of the synthetic fiber, and the proportion of the polyester fiber which takes polyester as raw material in China is approximately 80% in the total yield of the synthetic fiber, and the proportion of the polyester fiber which takes polyester as raw material in China is already more than 80% in the total yield of the synthetic fiber. The PTA production process can be divided into an oxidation unit and a hydrofining unit. The refined terephthalic acid is a main raw material for producing polyester fibers, resin, films and container resin, and is widely applied to the fields of chemical fiber, container, package, film production and the like. The oxidation separator in the oxidation unit of the PTA production process is also a very important step in the final step of the oxidation unit for product production. The crude terephthalic acid can only be sent to the next unit hydrofinishing unit after the product produced in this unit meets the criteria. Under the condition that the oxidation device runs stably and various parameter indexes are normal, the performance of the oxidation separator is a main factor affecting the product quality. The oxidation separator is a functional integrated device integrating filtering, washing and discharging, and rotates in a sealed frame in a variable-frequency speed regulation mode, the outer side of an annular space between the frame and the rotary drum is sealed by packing, and the inner side of the annular space is divided into sealed pressure chambers (a filtering chamber, a washing chamber, a discharging chamber and the like respectively) by an isolation unit. The surface of the rotary drum is composed of a filtering unit, and is connected with a control head through a filtrate pipe. The suspension is continuously fed under pressure into the filter chamber, a cake is formed in the filter unit, and under rotation of the drum, into the subsequent chamber. The filter cake is treated as required, for example: washing, discharging and the like. When the movable unit chamber is completely filled with filter cake, liquid (filtrate and washing liquid) passes through the filter cloth, the filter cake is retained above the filter seat, and the liquid (filtrate and washing liquid) is discharged to the control head through the filtrate pipe at the lower part of the movable unit chamber, so that the separation and discharge of the filtrate are completed. In the filter cake discharging area, the filter cake can be discharged in a gas back-blowing mode. Subsequently, the residue on the filter cloth is rinsed in a filter cloth rinsing chamber. The filtering and washing processes are carried out in a pressure area, and the discharging is carried out in a non-pressure area. The oxidation separator mainly comprises a frame, a cavity, a rotary drum, a sealing element, filter cake discharging, filtrate separating/discharging, a driving system, a lubricating system and the like. In daily use, the main factor influencing the performance of the oxidation separator is the permeability of the filter cloth, the filter cloth is blocked to reduce the permeability, the feeding pressure of the separator is increased, the performance of the oxidation separator is reduced, and the product cannot reach the standard. Therefore, in the routine maintenance of the oxidation separator, it is necessary to perform the alkaline washing and replacement work periodically to ensure the cleaning of impurities and the like blocking the filter cloth. However, a large amount of waste liquid is discharged during the alkaline washing and replacement operation, which results in resource waste and environmental pollution caused by VOC discharge.
Disclosure of Invention
The invention provides a separator washing liquid collecting and treating device, which is used for carrying out closed management on waste liquid generated during alkaline washing and replacement in daily single-machine operation, and effectively recycling the waste liquid so as to realize the purposes of safety, environmental protection, resource waste avoidance, material discharge reduction and efficient waste liquid recycling.
The device for solving the technical problems comprises an oxidation separator and a discharge header A, wherein the oxidation separator is arranged in parallel with the discharge header A, a pipeline a, a pipeline b, a pipeline c and a pipeline d which are mutually independent are connected between the oxidation separator and the discharge header A, one end of the discharge header A is a blind port, and the other end of the discharge header A is arranged in an oxidation sewage pool. The waste liquid recovery tank is characterized in that a pipeline branches out from the discharge header A and is connected with the side face of the waste liquid recovery tank, two pipelines are arranged at the top of the waste liquid recovery tank and are respectively connected with the bottom of the waste liquid recovery tank washing tower and the side face of the waste liquid recovery tank washing tower, the bottom of the waste liquid recovery tank is connected with one end of a waste liquid conveying pump, the other end of the waste liquid conveying pump is connected with one end of an oxidation sewage pump, the other end of the oxidation sewage pump is connected with a pipeline e, one end, far away from the oxidation sewage pump, of the pipeline e is arranged in the oxidation sewage tank, and two pipelines branch out from the pipeline between the oxidation sewage pump and the waste liquid conveying pump and are respectively connected with the waste liquid recovery tank and the intermittent waste water to the sewage treatment tank.
Further, a discharge header B is arranged below the discharge header A, one end of the discharge header B is a blind port, the other end of the discharge header B is arranged in the oxidation sewage pool, and two pipelines are branched from the discharge header B and are respectively connected with the sides of the pulping tank and the waste liquid recovery tank.
Further, one pipeline is branched out from the pipeline a and is connected with the first-stage washing liquid receiving tank, and the other pipeline is branched out from the pipeline a and is connected with the outlet a; one pipeline is branched out from the pipeline b and is connected with a separator mother liquor recovery tank, and the other pipeline is branched out from the pipeline b and is connected with an outlet b; one pipeline is branched out from the pipeline c and is connected with the mixed washing liquid receiving tank, and the other pipeline is branched out from the pipeline c and is connected with the outlet c; one pipeline is branched out from the pipeline d and is connected with the pulping tank, and the other pipeline is branched out from the pipeline d and is connected with the outlet d.
Further, pumps are arranged on the pipeline a, the pipeline b, the pipeline c and the pipeline d.
Further, pumps are arranged on the pipeline between the oxidation separator and the first-stage washing liquid receiving tank, the pipeline between the oxidation separator and the separator mother liquid recycling tank, the pipeline between the oxidation separator and the mixed washing liquid receiving tank and the pipeline between the oxidation separator and the pulping tank.
Further, pumps are arranged on the pipeline where the outlet a is located, the pipeline where the outlet b is located, the pipeline where the outlet c is located and the pipeline where the outlet d is located.
Further, the number of the pipes c is at least 3.
Further, the waste liquid conveying pump has a conveying lift of 75 m, a conveying capacity of 80t/h, a waste liquid recovery tank, a washing tower, and a waste liquid recovery tank (normal pressure tank 50 m) 3 )。
The beneficial effects are that: aiming at the defects of the discharge system of the oxidation separator of the existing PTA device, the invention improves and optimally designs the discharge system of the oxidation separator in the production process of the refined terephthalic acid, solves the problem of on-site discharge of waste liquid generated in the operation processes of water washing, alkali washing, replacement and the like, avoids resource waste and unorganized discharge, and realizes closed treatment and recovery of the waste liquid. Meanwhile, the sewage treatment route in the invention comprises a main treatment route and a standby route, wherein the main treatment route comprises an oxidation sewage tank and an oxidation sewage pump, the standby route comprises a waste liquid recovery tank and a waste liquid conveying pump, and when the oxidation sewage tank or the oxidation sewage pump cannot work normally, the waste liquid conveying pump works, so that the orderly discharge of waste liquid of the oxidation separator is improved, and the sewage treatment route is environment-friendly.
Drawings
FIG. 1 is a schematic diagram of a separator washing liquid collecting and treating apparatus according to the present invention.
In the figure, 1, an oxidation separator, 2, a mixed washing liquid receiving tank, 3, a pulping tank, 4, a separator mother liquid recovery tank, 5, a first-stage washing liquid receiving tank, 6, a waste liquid recovery tank, 7, a waste liquid recovery tank washing tower, 8, a waste liquid conveying pump, 9, an oxidation sewage pump, 10, an oxidation sewage tank, 11, a waste liquid recovery tank, 12, a discharge header A,13, a discharge header B,14, a pipeline a,15, a pipeline B,16, a pipeline c,17, a pipeline d,18, an outlet a,19, an outlet B,20, an outlet c,21 and an outlet d.
Detailed Description
The following non-limiting examples will enable those of ordinary skill in the art to more fully understand the invention and are not intended to limit the invention in any way.
Example 1
The device of the embodiment comprises an oxidation separator 1 and a discharge header A12, wherein the oxidation separator 1 and the discharge header A12 are arranged in parallel, a pipeline a14, a pipeline b15, a pipeline c16 and a pipeline d17 which are mutually independent are connected between the oxidation separator 1 and the discharge header A12, one end of the discharge header A12 is a blind opening, and the other end of the discharge header A12 is arranged in an oxidation sewage pool 10. The waste liquid recovery tank is characterized in that a pipeline is branched out of the discharge header A12 and is connected with the side face of the waste liquid recovery tank 6, two pipelines are arranged at the top of the waste liquid recovery tank 6 and are respectively connected with the bottom of the waste liquid recovery tank washing tower 7 and the side face of the waste liquid recovery tank washing tower 7, the bottom of the waste liquid recovery tank 6 is connected with one end of the waste liquid conveying pump 8, the other end of the waste liquid conveying pump 8 is connected with one end of the oxidation sewage pump 9, the other end of the oxidation sewage pump 9 is connected with a pipeline e18, one end, far away from the oxidation sewage pump 9, of the pipeline e18 is arranged in the oxidation sewage tank 10, and the pipeline between the oxidation sewage pump 9 and the waste liquid conveying pump 8 is branched out of the two pipelines and is respectively connected with the waste liquid recovery tank 11 and the intermittent waste water treatment tank.
A discharge header B13 is arranged below the discharge header A12, one end of the discharge header B13 is a blind port, the other end of the discharge header B13 is arranged in the oxidation sewage tank 10, and two pipelines are branched out of the discharge header B13 and are respectively connected with the sides of the pulping tank 3 and the waste liquid recovery tank 6.
One pipeline is branched out from the pipeline a14 and is connected with the first-stage washing liquid receiving tank 5, and the other pipeline is branched out from the pipeline a14 and is connected with the outlet a 19; one pipeline is branched out from the pipeline b15 and is connected with the separator mother liquor recovery tank 4, and the other pipeline is branched out from the pipeline b15 and is connected with the outlet b 20; one pipeline is branched out from the pipeline c16 and is connected with the mixed washing liquid receiving tank 2, and the other pipeline is branched out from the pipeline c16 and is connected with the outlet c 21; one pipeline branches off from the pipeline d17 and is connected with the pulping tank 3, and the other pipeline branches off from the pipeline d17 and is connected with the outlet d 22.
Pumps are provided on the pipe a14, on the pipe b15, on the pipe c16 and on the pipe d 17.
Pumps are arranged on the pipeline between the oxidation separator 1 and the first-stage washing liquid receiving tank 5, on the pipeline between the oxidation separator 1 and the separator mother liquid recycling tank 4, on the pipeline between the oxidation separator 1 and the mixed washing liquid receiving tank 2 and on the pipeline between the oxidation separator 1 and the pulping tank 3.
Pumps are arranged on the pipeline where the outlet a19 is located, the pipeline where the outlet b20 is located, the pipeline where the outlet c21 is located and the pipeline where the outlet d22 is located.
The number of the pipes c16 is at least 3.
Example 2
Further describing the present embodiment in accordance with the accompanying drawings, the waste liquid generated when the oxidation separator 1 is alkaline washed and replaced will flow to the discharge header a12: a line from the oxidation separator 1 to the first stage wash liquor receiving tank 5 to a discharge header A12; the line from the oxidation separator 1 to the separator mother liquor recovery tank 4 flows to the discharge header a12; a line from the oxidation separator 1 to the mixed liquor receiving tank 2 to a discharge header a12; the line from the oxidation separator 1 to the beating tank 3 flows to the discharge header a12. When the waste liquid is collected, the waste liquid flows from the discharge header A12 to the oxidation sewage tank 10, and at this time, the waste liquid is not discharged to the outside and is totally recovered to the oxidation sewage tank 10, and then is conveyed to a sewage treatment unit by the oxidation sewage pump 9 or is conveyed to the waste liquid recovery tank 11 for centralized treatment. When the oxidation sewage tank 10 or the oxidation sewage pump 9 cannot work normally, the waste liquid can be conveyed to the waste liquid recovery tank 6 from the discharge header A, and then conveyed to the sewage treatment unit or conveyed to the waste liquid recovery tank 11 for centralized treatment by the waste liquid conveying pump 8. When the waste liquid recovery tank 6 is used, the waste liquid recovery tank washing tower 7 is ensured to be in a put-into-use state, and the unorganized discharge of waste liquid is avoided.
The foregoing description is only a few examples of the present application and is not intended to limit the present application in any way, and although the present application is disclosed in the preferred examples, it is not intended to limit the present application, and any person skilled in the art may make some changes or modifications to the disclosed technology without departing from the scope of the technical solution of the present application, and the technical solution is equivalent to the equivalent embodiments.
Claims (5)
1. The washing liquid collecting and processing device of the separator is characterized by comprising an oxidation separator (1) and a discharge header A (12), wherein the oxidation separator (1) and the discharge header A (12) are arranged in parallel, a pipeline a (14), a pipeline b (15), a pipeline c (16) and a pipeline d (17) which are mutually independent are connected between the oxidation separator (1) and the discharge header A (12), one end of the discharge header A (12) is a blind port, and the other end of the discharge header A (12) is arranged in an oxidation sewage pool (10); the waste liquid recovery device is characterized in that a pipeline is branched out of the discharge header A (12) and is connected with the side face of the waste liquid recovery tank (6), two pipelines are arranged at the top of the waste liquid recovery tank (6) and are respectively connected with the bottom of the waste liquid recovery tank washing tower (7) and the side face of the waste liquid recovery tank washing tower (7), the bottom of the waste liquid recovery tank (6) is connected with one end of a waste liquid conveying pump (8), the other end of the waste liquid conveying pump (8) is connected with one end of an oxidation sewage pump (9), the other end of the oxidation sewage pump (9) is connected with a pipeline e (18), one end, far away from the oxidation sewage pump (9), of the pipeline e (18) is arranged in the oxidation sewage tank (10), and the pipeline between the oxidation sewage pump (9) and the waste liquid conveying pump (8) is branched out of the two pipelines and is respectively connected with the waste liquid recovery tank (11) and the intermittent waste water treatment tank;
one pipeline is branched out from the pipeline a (14) and is connected with the first-stage washing liquid receiving tank (5), and the other pipeline is branched out from the pipeline a (14) and is connected with the outlet a (19); one pipeline is branched out from the pipeline b (15) and is connected with the separator mother liquor recovery tank (4), and the other pipeline is branched out from the pipeline b (15) and is connected with the outlet b (20); one pipeline is branched out from the pipeline c (16) and is connected with the mixed washing liquid receiving tank (2), and the other pipeline is branched out from the pipeline c (16) and is connected with the outlet c (21); one pipeline is branched out from the pipeline d (17) and is connected with the pulping tank (3), and the other pipeline is branched out from the pipeline d (17) and is connected with the outlet d (22);
a discharge header B (13) is arranged below the discharge header A (12), one end of the discharge header B (13) is a blind opening, the other end of the discharge header B (13) is arranged in the oxidation sewage tank (10), and two pipelines are branched out of the discharge header B (13) and are respectively connected with the side surfaces of the pulping tank (3) and the waste liquid recovery tank (6).
2. The device according to claim 1, characterized in that pumps are provided on the pipe a (14), on the pipe b (15), on the pipe c (16) and on the pipe d (17).
3. The apparatus according to claim 1, characterized in that pumps are provided on the pipe between the oxidation separator (1) and the first stage wash liquor receiving tank (5), on the pipe between the oxidation separator (1) and the separator mother liquor recovery tank (4), on the pipe between the oxidation separator (1) and the mixed wash liquor receiving tank (2) and on the pipe between the oxidation separator (1) and the beating tank (3).
4. The device according to claim 1, characterized in that pumps are provided on the pipe where the outlet a (19), on the pipe where the outlet b (20), on the pipe where the outlet c (21) and on the pipe where the outlet d (22) are located.
5. The device according to claim 1, characterized in that the number of the pipes c (16) is at least 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029036.7A CN114394635B (en) | 2022-01-11 | 2022-01-11 | Separator washing liquid collection processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210029036.7A CN114394635B (en) | 2022-01-11 | 2022-01-11 | Separator washing liquid collection processing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114394635A CN114394635A (en) | 2022-04-26 |
| CN114394635B true CN114394635B (en) | 2024-03-29 |
Family
ID=81230200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210029036.7A Active CN114394635B (en) | 2022-01-11 | 2022-01-11 | Separator washing liquid collection processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114394635B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663758A (en) * | 2013-11-28 | 2014-03-26 | 亚东石化(上海)有限公司 | Method for recycling wastewater produced during purified terephthalic acid production |
| CN107399863A (en) * | 2017-07-27 | 2017-11-28 | 西安西热水务环保有限公司 | The joint processing system and method for Boiler Chemical waste water and air preheater flushing water |
-
2022
- 2022-01-11 CN CN202210029036.7A patent/CN114394635B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663758A (en) * | 2013-11-28 | 2014-03-26 | 亚东石化(上海)有限公司 | Method for recycling wastewater produced during purified terephthalic acid production |
| CN107399863A (en) * | 2017-07-27 | 2017-11-28 | 西安西热水务环保有限公司 | The joint processing system and method for Boiler Chemical waste water and air preheater flushing water |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114394635A (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103030175B (en) | Device and method applied to metatitanic acid washing room | |
| CN108043089A (en) | The sewage treatment pot being not easy to plug | |
| CN205360735U (en) | A full -automatic continuous demineralizer for production of furan phenol | |
| CN103043714A (en) | Tubular membrane device applicable to titanium dioxide washing and washing method | |
| CN101182081B (en) | Purified terephthalic acid device refined mother liquor reclaiming utilization system and technique | |
| CN101716438B (en) | Integrated continuous flow oil-containing waste water processing device | |
| CN105771417A (en) | Method for filtering and recovering solid particles in mother solution at PTA oxidation stage and filter using method | |
| CN114394635B (en) | Separator washing liquid collection processing apparatus | |
| CN106966427A (en) | The purification method of a kind of acidolysis titanium liquid and for the filter in method | |
| CN203079706U (en) | Device applied to metatitanic acid washing working section | |
| CN1248969C (en) | Filterpressing, washing, cleansing processes for manufacturing hydration titania | |
| CN105237391B (en) | A kind of method for further improving CTA exchange of solvent efficiency | |
| CN202700369U (en) | Dynamic separation device for cyclohexanone ammoximation catalysts | |
| TWI635074B (en) | A "Two-stage and Three-Step" CTA Solvent Exchange Method | |
| CN209428186U (en) | A kind of trade effluent ultrafiltration apparatus | |
| CN105417832A (en) | Integrated intelligent oil production wastewater treatment device and method for oil fields | |
| CN213506682U (en) | Circulating pipe for recycling materials | |
| CN109761208A (en) | A kind of technique and device of ferric phosphate washing | |
| CN217961626U (en) | Filter equipment for chemical industry | |
| CN218357895U (en) | Nickel cobalt hydroxide dewatering system with leaked material recovery device | |
| CN208532465U (en) | A kind of dyeing and printing sewage processing unit | |
| CN104056479B (en) | A kind of shell and tube enrichment facility | |
| CN117138582A (en) | Hydrogen peroxide purification process system and method | |
| CN108342919A (en) | Polydisc directly clear filter and its application method | |
| CN203935675U (en) | A kind of shell and tube enrichment facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |