CN119306346A - A treatment system for recycled tobacco wastewater - Google Patents
A treatment system for recycled tobacco wastewater Download PDFInfo
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- CN119306346A CN119306346A CN202411455570.XA CN202411455570A CN119306346A CN 119306346 A CN119306346 A CN 119306346A CN 202411455570 A CN202411455570 A CN 202411455570A CN 119306346 A CN119306346 A CN 119306346A
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Abstract
The invention relates to the technical field of sewage treatment, and provides a treatment system for reconstituted tobacco wastewater, which comprises a sewage pretreatment unit, a fiber recovery unit and a fiber drying unit, wherein the sewage pretreatment unit comprises a first water collecting tank, a second water collecting tank, a coarse grille and a fine grille, the first water collecting tank is filled with reconstituted tobacco wastewater, a water inlet of the second water collecting tank is communicated with a water outlet of the first water collecting tank, the fiber recovery unit comprises a third water collecting tank, a recovery plate and a recovery tank, a water inlet of the third water collecting tank is communicated with a water outlet of the second water collecting tank, the fiber drying unit comprises a sedimentation tank and a sludge treatment tank, a water inlet of the sedimentation tank is communicated with a water outlet of the third water collecting tank, and a sludge outlet of the sedimentation tank is connected with a sludge inlet of the sludge treatment tank. The invention can realize the effective recovery of the fibers, reduce the chromaticity and COD of the wastewater and improve the treatment efficiency and effect of the reconstituted tobacco wastewater.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a treatment system for reconstituted tobacco wastewater.
Background
The tobacco is made up by using tobacco materials of tobacco stem and tobacco powder as main raw material and adopting paper-making technique and equipment as reference, and making them pass through the processes of soaking tobacco raw material in water, solid-liquid separation, separating water-soluble material from insoluble material in the tobacco, pulping, making fibrous sheet base by means of paper-making machine, concentrating the water-soluble material, reducing and adding it into base sheet, and finally drying so as to obtain the invented paper-making reconstituted tobacco.
The waste water in the production process of the paper-making reconstituted tobacco is special industrial waste water. The waste water produced by the paper-making reconstituted tobacco has complex sources, mainly comprising the discharge liquid of settling of leaf threads and stem threads, the discharge liquid of equipment cleaning, the discharge liquid of concentrated white water discharged from paper making, the discharge liquid of stem and leaf extracting liquid and evaporation condensate water, the coating liquid and the like.
The papermaking process reconstituted tobacco waste water has the characteristics of large waste water discharge amount, high chromaticity, high chemical oxygen demand and more fiber suspended matters in the waste water. The industrial wastewater treatment process mainly utilizes a physical and chemical method and a biological method, and mainly realizes wastewater discharge standard through aeration sedimentation, microbial degradation, chemical reagent catalytic oxidation and the like. The existing reconstituted tobacco wastewater treatment process has low sewage treatment efficiency, more chemical reagents are added, fibers cannot be effectively recycled, and resources are wasted.
Disclosure of Invention
The invention mainly solves the technical problems that the existing reconstituted tobacco wastewater treatment process has lower sewage treatment efficiency, more chemical reagents are added, fibers cannot be effectively recycled and the like, and provides a treatment system for reconstituted tobacco wastewater, which realizes effective recycling of fibers, reduces chromaticity and COD of the wastewater and improves the treatment efficiency and effect of reconstituted tobacco wastewater.
The invention provides a treatment system for reconstituted tobacco wastewater, which comprises a sewage pretreatment unit, a fiber recovery unit and a fiber drying unit;
The sewage pretreatment unit comprises a first water collecting tank, a second water collecting tank, a coarse grid and a fine grid;
The first water collecting tank is filled with reconstituted tobacco waste water, and is connected with a first automatic dosing device;
the metal grid strips of the coarse grid are arranged in the first water collecting tank and are positioned below the water inlet of the first water collecting tank;
The water inlet of the second water collecting tank is communicated with the water outlet of the first water collecting tank, and the second water collecting tank is connected with a second automatic dosing device;
the metal grid strips of the fine grid are arranged in the second water collecting tank and are positioned below the water inlet of the second water collecting tank;
The fiber recovery unit comprises a third water collecting tank, a recovery plate and a recovery box;
The water inlet of the third water collecting tank is communicated with the water outlet of the second water collecting tank, and the third water collecting tank is connected with a third automatic dosing device;
a filter screen is arranged in the third water collecting tank, and a lifting scraper is arranged at the top of the third water collecting tank;
one end of the recovery plate extends into the third water collecting tank, and the other end of the recovery plate extends into the recovery box;
The fiber drying unit comprises a sedimentation tank and a sludge treatment tank;
the water inlet of the sedimentation tank is communicated with the water outlet of the third water collecting tank, and the sludge outlet of the sedimentation tank is connected with the sludge inlet of the sludge treatment tank.
Preferably, a first stirrer is arranged in the first water collecting tank, and a second stirrer is arranged in the second water collecting tank.
Preferably, the first automatic medicine adding device adds medicine in one or more of polymeric ferric sulfate, polymeric aluminum sulfate, polymeric ferric chloride and polymeric aluminum chloride.
Preferably, the second automatic medicine adding device adds medicine into active carbon.
Preferably, the third automatic medicine adding device adds medicine into polyacrylamide solution.
Preferably, the third water collecting tank is provided with a filter screen through a multi-stage filter screen driving device.
Preferably, an underwater probe is arranged in the third water collecting tank.
Preferably, the positive flushing spray head and the back flushing spray head are respectively arranged above the two ends of the filter screen in the third water collecting tank.
Preferably, the top in the recovery box is connected with a hot air pipe.
Preferably, the water outlet of the sedimentation tank is connected with a sewage to-be-detected tank.
The sewage pretreatment unit is used for carrying out primary treatment on papermaking wastewater, removing large-particle impurities in the wastewater, decoloring and deodorizing. The fiber recovery unit is used for effectively separating the fibers in the wastewater. The fiber drying unit is used for drying the recovered fibers for subsequent use. The invention optimizes the sewage treatment process of the reconstituted tobacco waste water, reduces the working pressure of sewage treatment personnel, improves the treatment efficiency and effect of the reconstituted tobacco waste water, reduces the addition of chemical reagents, can realize the effective recovery of fibers, also effectively reduces the chromaticity and COD of the waste water, reduces the waste of resources, reduces the environmental pollution and achieves the aims of reducing the cost and enhancing the efficiency. The invention can make the chromaticity and COD of the wastewater after treatment reach the discharge standard and the fiber in the wastewater can be recycled.
Drawings
Fig. 1 is a schematic diagram of a sewage pretreatment unit in a treatment system for reconstituted tobacco wastewater provided by the invention;
FIG. 2 is a schematic diagram of the structure of a fiber recovery unit and a fiber drying unit in the treatment system for reconstituted tobacco wastewater provided by the invention;
FIG. 3 is a process of the treatment system for reconstituted tobacco wastewater provided by the invention.
Reference numeral 1, a first water collecting tank; 2, a second water collecting tank, 3, a first stirrer, 4, a coarse grid transmission device, 5, a coarse grid, 6, a fine grid, 7, a first automatic dosing device, 8, a lifting brush type scraper, 9, an underwater probe, 10, a conveyor belt, 11, a recovery tank, 12, a multi-stage filter screen driving device, 13, a front flushing spray head, 14, a back flushing spray head, 15, a filter screen, 16, a hot blast pipe, 17, a third water collecting tank, 18, a sedimentation tank, 19, a sludge treatment tank, 20, a sewage to be detected tank, 21, a second stirrer, 22, a fine grid transmission device, 23, a second automatic dosing device, 24, a third automatic dosing device and 25, sludge.
Detailed Description
In order to make the technical problems solved by the invention, the technical scheme adopted and the technical effects achieved clearer, the invention is further described in detail below with reference to the accompanying drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present invention are shown in the accompanying drawings.
1-2, The treatment system for reconstituted tobacco wastewater provided by the embodiment of the invention comprises a sewage pretreatment unit, a fiber recovery unit and a fiber drying unit.
The sewage pretreatment unit is used for carrying out primary treatment on papermaking wastewater, removing large-particle impurities in the wastewater, decoloring and deodorizing. The fiber recovery unit is used for effectively separating the fibers in the wastewater. The fiber drying unit is used for drying the recovered fibers for subsequent use. The invention can make the chromaticity and COD of the wastewater after treatment reach the discharge standard and the fiber in the wastewater can be recycled.
The sewage pretreatment unit comprises a first water collecting tank 1, a second water collecting tank 2, a coarse grille 5 and a fine grille 6. And the first water collecting tank 1 is filled with reconstituted tobacco waste water. The first water collecting tank 1 is connected with a first automatic dosing device 7, and the first automatic dosing device 7 is used for dosing one or more of polymeric ferric sulfate, polymeric aluminum sulfate, polymeric ferric chloride and polymeric aluminum chloride, and the concentration is 2000-3000mg/L. A first stirrer 3 is arranged in the first water collecting tank 1, and the first stirrer 3 is used for uniformly mixing the dosing wastewater. The metal grid strips of the coarse grid 5 are arranged in the first water collecting tank 1 and are positioned below the water inlet of the first water collecting tank 1. The coarse grid 5 serves to intercept coarse suspended matter and impurities in the wastewater.
The water inlet of the second water collecting tank 2 is communicated with the water outlet of the first water collecting tank 1. The second water collecting tank 2 is connected with a second automatic dosing device 23, the second automatic dosing device 23 is dosed with active carbon with the concentration of 300-900mg/L, and the active carbon has the functions of adsorption, decolorization and catalysis, so that large-particle impurities and other suspended matters in the wastewater can be effectively removed. A second stirrer 21 is arranged in the second water collecting tank 2, and the second stirrer 21 is used for uniformly mixing the dosing wastewater. The metal bars of the fine grid 6 are arranged in the second water collecting tank 2 and are positioned below the water inlet of the second water collecting tank 2. The fine grid 6 is used for continuously and automatically intercepting and removing sundries with various shapes in the wastewater.
The fiber recovery unit comprises a third water collecting tank 17, a recovery plate 10 and a recovery tank 11. The water inlet of the third water collecting tank 17 is communicated with the water outlet of the second water collecting tank 2, the third water collecting tank 17 is connected with a third automatic dosing device 24, and the dosing of the third automatic dosing device 24 is 2-5mL/L of 0.5% polyacrylamide solution. The third water collecting tank 17 is internally provided with a filter screen 15, and the filter screen 15 is driven to move along the transmission shafts at two sides in the third water collecting tank 17, wherein the process is that the filter screen 15 collects fibers in the water collecting tank 17. Specifically, the third water collection tank 17 is provided with a filter screen 15 through a multi-stage filter screen driving device 12. The multistage filter screen driving device 12 comprises a frame and two movable pulleys, wherein the frame is fixedly arranged on the inner wall of the water collecting tank 17, the shape of the frame is matched with the shape of the inner wall of the water collecting tank 17, the two movable pulleys are respectively arranged at two ends of the filter screen 15, and the movable pulleys are arranged on a track of the frame in a sliding mode. The movable pulleys can be pulled by a belt and the like to realize lifting, and the two movable pulleys can move in a differential mode. By controlling differential motion of the movable pulleys, suspended fibers after dosing are alternately collected in the water collecting tank 17, after one-time collection is completed, the filter screen 15 is tightened through the multi-stage filter screen driving device 12, the fibers are cleaned to the conveyor belt 10 by the liftable brush type scraper 8 and then conveyed to the recovery box 11 by the conveyor belt 10, fiber recovery is completed, after the subsequent utilization, cleaning work is carried out on the filter screen 15 by the cleaning spray head after one-time collection is completed, and next collection work is repeated.
The top of the third water collecting tank 17 is provided with a lifting scraper 8. An underwater probe 9 is arranged in the third water collecting tank 17, and the water quality condition is fed back through the underwater probe 9. The third water collecting tank 17 is internally provided with the positive flushing spray head 13 and the back flushing spray head 14 above the two ends of the filter screen 15 respectively, so that the filter screen 15 can be flushed, the filter screen 15 is prevented from being blocked, and the fiber effective filtering effect is achieved.
One end of the conveyor belt 10 extends into the third water collecting tank 17, the other end extends into the recovery box 11, the top of the recovery box 11 is connected with a hot air pipe 16, the bottom of the hot air pipe 16 is connected with a fan, and hot air is sent by the fan to achieve preliminary drying of recovered fibers. After drying, the waste is collected into a recovery box 11 through a recovery scraper for later use.
The fiber drying unit comprises a sedimentation tank 18 and a sludge treatment tank 19, wherein a water inlet of the sedimentation tank 18 is communicated with a water outlet of the third water collecting tank 17, and a sludge outlet of the sedimentation tank 18 is connected with a sludge inlet of the sludge treatment tank 19. The water outlet of the sedimentation tank 18 is connected with a sewage to-be-detected tank 20.
The first automatic dosing device 7, the second automatic dosing device 23, the third automatic dosing device 24, the underwater probe 9 and other automatic elements are respectively connected with a control center through signals, and are automatically controlled by the control center, and manual control can be performed if necessary.
The working process of the treatment system for reconstituted tobacco wastewater is as shown in fig. 3:
The reconstituted tobacco wastewater is collected to the first water collecting tank 1 through different workshops, the first automatic dosing device 7 carries out first dosing on the wastewater for coagulation, the first stirrer 3 uniformly mixes the dosing wastewater, and the coarse grille 5 is driven by the coarse grille driving device 4 for first-step filtration.
The wastewater filtered in the first step enters a second water collecting tank 2, a second automatic dosing device 23 carries out second dosing on the wastewater, the wastewater is adsorbed, decolored and catalyzed, and a fine grid driving device 22 drives a fine grid 6 to carry out second-step filtering, so that pretreatment is completed.
The wastewater filtered in the second step enters a third water collecting tank 17, the third water collecting tank 17 feeds back the water quality through an underwater probe 9, a third automatic dosing device 24 automatically adjusts dosing amount to catalyze water bodies to perform flocculation and other reactions according to the feedback of the underwater probe 9, meanwhile, a multi-stage filter screen driving device 12 drives a filter screen 15 to move along transmission device shafts on two sides in the tank, the filter screen 15 collects fibers, the fibers collected through a liftable scraper 8 are scraped to a recovery plate 10, the recovered fibers are collected to a recovery tank 11 through the recovery plate 10, and after single collection is completed, a positive flushing spray head 13 and a back flushing spray head 14 spray cleaning work is performed on the filter screen 15, and fiber recovery is completed at the moment.
The hot air pipe 16 carries out primary drying on the fiber recovered in the recovery box 11 for subsequent recycling.
The wastewater after fiber recovery in the third water collecting tank 17 flows into the sedimentation tank 18 for sedimentation, the sludge 25 enters the sludge treatment tank 19 through a lower pipeline after sedimentation is finished, and the supernatant enters the sewage to-be-detected tank 20.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, without departing from the spirit of the technical solution of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411455570.XA CN119306346A (en) | 2024-10-18 | 2024-10-18 | A treatment system for recycled tobacco wastewater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411455570.XA CN119306346A (en) | 2024-10-18 | 2024-10-18 | A treatment system for recycled tobacco wastewater |
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| CN119306346A true CN119306346A (en) | 2025-01-14 |
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| CN202411455570.XA Pending CN119306346A (en) | 2024-10-18 | 2024-10-18 | A treatment system for recycled tobacco wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120058174A (en) * | 2025-04-07 | 2025-05-30 | 浙江弘安纸业股份有限公司 | Paper handkerchief waste water treatment system |
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|---|---|---|---|---|
| CN202369457U (en) * | 2011-12-05 | 2012-08-08 | 中科同创（厦门）环境科技有限公司 | Commercial pulp papermaking white water treatment device |
| CN106396252A (en) * | 2016-08-29 | 2017-02-15 | 浙江远大纸业有限公司 | Papermaking sewage depth biochemical treatment method |
| WO2017070882A1 (en) * | 2015-10-29 | 2017-05-04 | 安尼康（福建）环保设备有限公司 | Flocculation concentration device with grid structural body and filtrate recovery tank |
| CN109224592A (en) * | 2018-10-29 | 2019-01-18 | 云南红塔蓝鹰纸业有限公司 | A kind of clean paper making sewage treatment filter device |
| CN210337017U (en) * | 2019-03-28 | 2020-04-17 | 淮安恒发纸业有限公司 | Recovery processing device of papermaking waste residue |
| CN214031962U (en) * | 2020-12-17 | 2021-08-24 | 亚青永葆生活用纸(苏州)有限公司 | Sewage circulation treatment device for papermaking processing |
| CN114044614A (en) * | 2021-11-26 | 2022-02-15 | 无锡星亿智能环保装备股份有限公司 | Wastewater treatment device with stirring structure |
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2024
- 2024-10-18 CN CN202411455570.XA patent/CN119306346A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202369457U (en) * | 2011-12-05 | 2012-08-08 | 中科同创（厦门）环境科技有限公司 | Commercial pulp papermaking white water treatment device |
| WO2017070882A1 (en) * | 2015-10-29 | 2017-05-04 | 安尼康（福建）环保设备有限公司 | Flocculation concentration device with grid structural body and filtrate recovery tank |
| CN106396252A (en) * | 2016-08-29 | 2017-02-15 | 浙江远大纸业有限公司 | Papermaking sewage depth biochemical treatment method |
| CN109224592A (en) * | 2018-10-29 | 2019-01-18 | 云南红塔蓝鹰纸业有限公司 | A kind of clean paper making sewage treatment filter device |
| CN210337017U (en) * | 2019-03-28 | 2020-04-17 | 淮安恒发纸业有限公司 | Recovery processing device of papermaking waste residue |
| CN214031962U (en) * | 2020-12-17 | 2021-08-24 | 亚青永葆生活用纸(苏州)有限公司 | Sewage circulation treatment device for papermaking processing |
| CN114044614A (en) * | 2021-11-26 | 2022-02-15 | 无锡星亿智能环保装备股份有限公司 | Wastewater treatment device with stirring structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120058174A (en) * | 2025-04-07 | 2025-05-30 | 浙江弘安纸业股份有限公司 | Paper handkerchief waste water treatment system |
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