CN115321730B - Method for deeply treating and desalting sucralose extraction wastewater - Google Patents
Method for deeply treating and desalting sucralose extraction wastewater Download PDFInfo
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- C02F9/00—Multistage treatment of water, waste water or sewage
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- C02F1/00—Treatment of water, waste water, or sewage
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
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- C02F2101/38—Organic compounds containing nitrogen
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Abstract
The invention discloses a method for deeply treating and desalting sucralose extraction wastewater, which relates to the technical field of chemical wastewater treatment. The invention can conveniently recover and clean the activated carbon and the scrap iron, and simultaneously avoids the influence on the treatment of the wastewater in the subsequent tower kettle caused by the residual cleaning water in a cavity separation mode during cleaning, and can reduce the use amount of the cleaning water, save manpower, reduce the recovery cost, and simultaneously has extremely high recovery efficiency, thereby avoiding the problem of recovery to influence the overall treatment efficiency of the wastewater.
Description
Technical Field
The invention relates to the technical field of chemical wastewater treatment, in particular to a method for deeply treating and desalting sucralose extraction wastewater.
Background
A large amount of industrial extraction wastewater is generated in the process of producing the sucralose, and along with the popularization of the application of the sucralose in the market, the scale of producing the sucralose is increased, so that the amount of the extraction wastewater is increased, and the harm to the environment is increased.
The invention patent of patent application publication No. CN 108503115B discloses a method for deeply treating and desalting sucralose extraction wastewater, which comprises the following steps: performing high-efficiency coagulation treatment on the sucralose extraction wastewater to obtain supernatant; subjecting the supernatant to ion chromatography to obtain the concentration of the main anions in the supernatant; adding NaOH according to the concentration of the main anions, and removing ammonia nitrogen in the extracted wastewater through rectification treatment; taking tower kettle wastewater from which ammonia nitrogen is removed, and treating the tower kettle wastewater by using an Fe-C micro-electrolysis method; carrying out Fenton method treatment; carrying out ozone oxidation treatment on the treated wastewater; and then mechanical vapor recompression concentration crystallization treatment is carried out.
The invention utilizes the coupling and synergistic effect of different unit technologies to remove colloid, ammonia nitrogen, organic matters and pungent odor in the sucralose extraction wastewater, wherein the ammonia nitrogen removal rate can reach more than 99.9%, the COD removal rate can reach 65-90%, and the advanced treatment and desalination of the sucralose extraction wastewater are realized.
However, the method is found to have some problems after being actually applied by the person skilled in the art, and obviously, after the wastewater is treated by the rectification Fe-C micro-electrolysis method, in order to recover the activated carbon and the scrap iron distributed in the water body, the treated wastewater is required to be filtered, the filtered activated carbon and the filtered scrap iron are required to be manually washed again after being collected, the operation is complicated, the recovery cost is increased, meanwhile, the output efficiency of the treated wastewater is obviously influenced, and the overall treatment efficiency of the wastewater is further reduced.
Therefore, it is necessary to invent a method for deeply treating and desalting sucralose extraction wastewater to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for deeply treating and desalting sucralose extraction wastewater, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the method for deeply treating and desalting the sucralose extraction wastewater is realized by using equipment for deeply treating and desalting the sucralose extraction wastewater, the equipment for deeply treating and desalting the sucralose extraction wastewater comprises an electrolytic tank, a driving mechanism is commonly arranged at the inner cavity of the electrolytic tank and the top of the electrolytic tank, a hollow rotating shaft in the driving mechanism cannot drive a reciprocating screw rod in the driving mechanism to synchronously rotate when rotating clockwise, the hollow rotating shaft in the driving mechanism drives the reciprocating screw rod in the driving mechanism to synchronously rotate when rotating anticlockwise, a stirring mechanism is connected to the driving mechanism in a transmission way, a plurality of activated carbon and scrap iron containing mechanisms are arranged on the stirring mechanism, a blocking lifting mechanism is arranged at the bottom of the inner cavity of the electrolytic tank, activated carbon and scrap iron containing mechanisms are compressed when an outer lifting plate in the blocking lifting mechanism ascends, a trigger type water supply mechanism is arranged on the blocking lifting mechanism, a trigger plate in the trigger type water supply mechanism drives a sealing collar in the trigger type water supply mechanism to synchronously lift, an input pipe and an output pipe penetrating through the right side of the electrolytic tank are fixedly arranged at the middle part of the left side of the electrolytic tank, and an output pipe penetrating through the right side of the electrolytic tank is fixedly arranged at the bottom of the electrolytic tank, and an output pipe penetrating through the right side of the output pipe is fixedly arranged at the bottom of the output pipe;
the driving mechanism comprises a hollow rotating shaft, a first gear, a driving motor, a second gear and a reciprocating screw rod;
the hollow rotating shaft is rotatably nested at the top of the electrolytic tank through a bearing, the first gear is fixedly sleeved at the top of the outer side of the hollow rotating shaft, the driving motor is fixedly arranged on the right side of the top of the electrolytic tank, the second gear is in transmission connection with the driving motor and meshed with the first gear, and the top end of the reciprocating screw rod is connected with the bottom end of the hollow rotating shaft through an overrunning clutch;
the stirring mechanism comprises a rotary disc, a stirring rod, a third gear and a gear ring;
the rotary disc is fixedly sleeved on the outer side of the hollow rotary shaft, two stirring rods and two third gears are respectively arranged, the two stirring rods respectively pass through the two sides of the top of the rotary disc in a rotating way through bearings in a penetrating way, two gear rings are respectively fixedly arranged on the top ends of the two third gears, the gear rings are sleeved on the outer sides of the two third gears and meshed with the two third gears, and the gear rings are fixedly arranged on the top of the inner cavity of the electrolytic tank;
the active carbon and scrap iron containing mechanism comprises a sliding sleeve, a spherical containing net cover, a first spring and a sliding sleeve ring;
the sliding sleeve is sleeved on the outer side of the stirring rod in a sliding manner, the sliding sleeve is fixedly sleeved on the outer side of the sliding sleeve, the spherical accommodating net cover is filled with active carbon and scrap iron, the first spring and the sliding sleeve are both provided with two springs, the first spring and the sliding lantern ring are sleeved on the outer side of the stirring rod, one end of the first spring is fixedly connected with the sliding sleeve, and the other end of the first spring is fixedly connected with the adjacent sliding lantern ring;
the blocking lifting mechanism comprises a threaded sleeve, an inner lifting plate, an outer lifting plate and a guide rod;
the screw sleeve is sleeved at the bottom of the outer side of the reciprocating screw rod and is in threaded connection with the reciprocating screw rod, the inner lifting plate is fixedly sleeved at the bottom of the outer side of the screw sleeve, the outer lifting plate is rotatably sleeved at the outer side of the inner lifting plate through a bearing, two guide rods are arranged, the two guide rods are respectively and slidably arranged at two sides of the top of the inner lifting plate in a penetrating manner, and the bottom end of each guide rod is fixedly connected with the inner wall of the electrolytic tank;
the trigger type water supply mechanism comprises a trigger plate, a second spring, a limiting block, an annular rotating block, an L-shaped rod, a sealing lantern ring, a water inlet through hole and a cleaning water input pipe;
the trigger plate is arranged on the outer sides of the two guide rods in a sliding sleeving manner, the two second springs and the limiting blocks are respectively arranged on the outer sides of the two guide rods in a sleeving manner, the two limiting blocks are respectively fixedly arranged on the top ends of the two guide rods, one end of each second spring is fixedly connected with the trigger plate, the other end of each second spring is fixedly connected with the limiting block, the annular rotating block is rotatably nested on the top of the trigger plate through a bearing, the two L-shaped rods are arranged on the two sides of the top of the annular rotating block, the sealing lantern ring is arranged on the outer sides of the hollow rotating shaft in a sliding sleeving manner and is fixedly connected with the two L-shaped rods, the water inlet through hole is arranged on the hollow rotating shaft in a penetrating manner, and the cleaning water input pipe is connected with the top end of the hollow rotating shaft through a rotating joint;
the method for deeply treating and desalting the sucralose extraction wastewater specifically comprises the following steps:
s1, performing coagulation treatment on sucralose extraction wastewater to obtain supernatant, performing ion chromatography external standard method analysis on the supernatant to obtain the types and the contents of anions in the wastewater, adding quantitative strong alkaline substances according to analysis results, performing rectification treatment to remove ammonia nitrogen in the wastewater so as to reach the emission standard of ammonia nitrogen, and simultaneously obtaining aqueous solution of dimethylamine and ammonia and tower kettle wastewater, and adjusting the pH value of the tower kettle wastewater;
s2, inputting the tower kettle wastewater with the pH value adjusted into an electrolytic tank through a tower kettle wastewater input pipe, wherein the liquid level is lower than the heights of an outlet of the tower kettle wastewater input pipe and an inlet of a cleaning water output pipe, enabling the tower kettle wastewater to pass through holes in a spherical accommodating net cover to contact with activated carbon and scrap iron in the spherical accommodating net cover, starting a micro-electrolysis assembly in the electrolytic tank, and simultaneously starting a driving motor to enable the driving motor to drive a hollow rotating shaft to rotate clockwise through a first gear and a second gear, at the moment, the hollow rotating shaft drives two stirring rods to revolve around the hollow rotating shaft through a rotating disc, and the stirring rods drive a plurality of activated carbon and scrap iron accommodating mechanisms to revolve synchronously during revolution of the stirring rods, so that the activated carbon and scrap iron in the spherical accommodating net cover are enabled to contact with the tower kettle wastewater more effectively;
s3, outputting the wastewater through an electrolysis wastewater output pipe after the micro-electrolysis of the wastewater at the tower kettle is finished, carrying out Fenton method treatment, further degrading organic matters which are difficult to degrade in the wastewater, carrying out ozone oxidation treatment on the wastewater after the Fenton method treatment is finished, and finally carrying out evaporation concentration treatment on the wastewater after the ozone oxidation treatment to obtain cleaner salt and fresh water;
s4, after the waste water in the electrolytic tank is discharged, the driving motor drives the hollow rotating shaft to rotate anticlockwise through the first gear and the second gear, the reciprocating screw rod is driven by the hollow rotating shaft to rotate synchronously, at the moment, the threaded sleeve drives the inner lifting plate and the outer lifting plate to lift along the reciprocating screw rod, and the outer lifting plate pushes the plurality of activated carbon and scrap iron containing mechanisms on the outer side of the stirring rod upwards when lifting;
s5, when the rising heights of the inner lifting plate and the outer lifting plate reach a first threshold value, the heights of the inner lifting plate and the outer lifting plate are larger than the inlet height of the cleaning water output pipe, the inner lifting plate starts to push the trigger plate, the trigger plate drives the sealing sleeve ring to move upwards through the annular rotating block and the L-shaped rod, the sealing sleeve ring releases the sealing of the water inlet through hole, cleaning water output by the cleaning water input pipe enters the electrolytic tank through the water inlet through hole and is accumulated at the top of the inner cavity of the electrolytic tank due to the blocking of the inner lifting plate and the outer lifting plate, in the process, the hollow rotating shaft continuously drives the two stirring rods and the plurality of active carbon and iron filings containing mechanisms to revolve through the rotating disc, so that the active carbon and the iron filings containing mechanisms are effectively contacted with the cleaning water and are cleaned, and meanwhile, the outer lifting plate continuously drives the active carbon and the iron filings containing mechanisms to rise, and compresses a first spring in the active carbon and the iron filings containing mechanisms;
s6, when the rising heights of the inner lifting plate and the outer lifting plate reach a second threshold value, the reciprocating screw rod starts to drive the inner lifting plate and the outer lifting plate to descend due to the arrangement of the reciprocating screw threads on the outer side of the reciprocating screw rod, and along with the continuous movement of the inner lifting plate and the outer lifting plate, when the current heights of the inner lifting plate and the outer lifting plate are smaller than the first threshold value, the second spring drives the trigger plate to reset, so that the sealing lantern ring seals the water inlet through hole, and cleaning water is not output any more;
s7, when the inner lifting plate and the outer lifting plate move to the bottom of the opening of the cleaning water output pipe, stopping the driving motor, discharging cleaning water through the cleaning water output pipe, and then enabling the driving motor to continuously drive the hollow rotating shaft to rotate anticlockwise, so that the blocking lifting mechanism is reset, and after the blocking lifting mechanism is reset, the activated carbon and the scrap iron containing mechanism synchronously slide and reset outside the stirring rod.
The invention has the technical effects and advantages that:
according to the invention, the driving mechanism, the stirring mechanism, the active carbon and scrap iron containing mechanism, the blocking lifting mechanism and the triggering type water supply mechanism are arranged, so that the stirring mechanism is conveniently driven by the driving mechanism, the active carbon and scrap iron containing mechanism containing the active carbon and scrap iron is driven by the stirring mechanism to revolve in the wastewater, the active carbon and scrap iron are effectively contacted with the wastewater while stirring the wastewater, the normal micro-electrolysis reaction is further ensured, the blocking lifting mechanism is driven by the driving mechanism while driving the stirring mechanism, the blocking lifting mechanism is further driven to push the active carbon and scrap iron containing mechanism to ascend, the active carbon and scrap iron containing mechanism is compressed, the consumption of cleaning water is reduced while the treatment of the wastewater in the subsequent tower kettle is prevented from being influenced by the cleaning water entering the bottom of the inner cavity of the electrolytic tank, the effect of saving water is achieved, and the triggering type water supply mechanism is further triggered when the blocking lifting mechanism ascends.
Drawings
Fig. 1 is a schematic view of the overall front cross-sectional structure of the present invention.
Fig. 2 is a schematic diagram of a front cross-sectional structure of a driving mechanism of the present invention.
FIG. 3 is a schematic diagram of a front cross-sectional structure of the trigger type water supply mechanism of the present invention.
FIG. 4 is a schematic diagram showing a front cross-sectional structure of the activated carbon and scrap iron containing mechanism of the present invention.
Fig. 5 is a schematic diagram of a front cross-sectional structure of a barrier lifting mechanism of the present invention.
In the figure: 1. an electrolytic tank; 2. a driving mechanism; 21. a hollow rotating shaft; 22. a first gear; 23. a driving motor; 24. a second gear; 25. a reciprocating screw rod; 3. a stirring mechanism; 31. a rotating disc; 32. a stirring rod; 33. a third gear; 34. a gear ring; 4. activated carbon and scrap iron containing mechanism; 41. sliding the sleeve; 42. spherical accommodating net cover; 43. a first spring; 44. a sliding collar; 5. a blocking lifting mechanism; 51. a threaded sleeve; 52. an inner lifting plate; 53. an outer lifting plate; 54. a guide rod; 6. a trigger type water supply mechanism; 61. a trigger plate; 62. a second spring; 63. a limiting block; 64. an annular rotating block; 65. an L-shaped rod; 66. a sealing collar; 67. a water inlet through hole; 68. a washing water input pipe; 7. a tower kettle wastewater input pipe; 8. an electrolysis waste water output pipe; 9. and cleaning the water output pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The invention provides a method for deeply treating and desalting sucralose extraction wastewater, which is shown in fig. 1-5, wherein the method for deeply treating and desalting sucralose extraction wastewater is realized by using equipment for deeply treating and desalting sucralose extraction wastewater, the equipment for deeply treating and desalting sucralose extraction wastewater comprises an electrolytic tank 1, a driving mechanism 2 is jointly arranged at the inner cavity of the electrolytic tank 1 and the top of the electrolytic tank 1, a hollow rotating shaft 21 in the driving mechanism 2 cannot drive a reciprocating screw rod 25 in the driving mechanism 2 to synchronously rotate when rotating clockwise, the hollow rotating shaft 21 in the driving mechanism 2 drives the reciprocating screw rod 25 in the driving mechanism 2 to synchronously rotate when rotating anticlockwise, a stirring mechanism 3 is connected to the driving mechanism 2 in a transmission way, a plurality of active carbon and scrap iron accommodating mechanisms 4 are arranged on the stirring mechanism 3, a blocking lifting mechanism 5 is arranged at the bottom of the inner cavity of the electrolytic tank 1, a trigger water supply mechanism 6 is arranged on the blocking mechanism 5, a trigger water supply mechanism 61 drives a sealing ring 6 to synchronously rotate when an outer lifting plate 53 is lifted, and an electrolytic tank 1 is fixedly arranged at the middle part of the electrolytic tank 1, and a water supply pipe 7 penetrates through the middle part of the electrolytic tank 1, and a water supply pipe 7 is fixedly arranged at the middle part of the electrolytic tank 1.
As shown in fig. 3 and fig. 4, the driving mechanism 2 includes a hollow rotation shaft 21, a first gear 22, a driving motor 23, a second gear 24 and a reciprocating screw 25, where the hollow rotation shaft 21 is rotatably nested on the top of the electrolytic tank 1 through a bearing, the first gear 22 is fixedly sleeved on the top outside the hollow rotation shaft 21, the driving motor 23 is fixedly arranged on the right side of the top of the electrolytic tank 1, the second gear 24 is in transmission connection with the driving motor 23 and meshed with the first gear 22, the hollow rotation shaft 21, the first gear 22, the driving motor 23 and the second gear 24 are arranged such that the driving motor 23 can drive the first gear 22 to rotate through the second gear 24, the first gear 22 drives the hollow rotation shaft 21 to rotate when rotating, and the top end of the reciprocating screw 25 is connected with the bottom end of the hollow rotation shaft 21 through an overrunning clutch, so that the hollow rotation shaft 21 cannot drive the reciprocating screw 25 to synchronously rotate when the hollow rotation shaft 21 rotates clockwise, and the reciprocating screw 25 is driven to synchronously rotate when the hollow rotation shaft 21 rotates anticlockwise.
As shown in fig. 2 and fig. 3, the stirring mechanism 3 includes a rotating disc 31, stirring rods 32, a third gear 33 and a gear ring 34, where the rotating disc 31 is fixedly sleeved on the outer side of the hollow rotating shaft 21, the stirring rods 32 and the third gear 33 are both provided with two stirring rods 32 respectively and rotatably penetrate through two sides of the top of the rotating disc 31 through bearings, the two gear rings 34 are respectively and fixedly arranged on the top ends of the two third gears 33, the gear ring 34 is sleeved on the outer sides of the two third gears 33 and meshed with the two third gears 33, and the gear ring 34 is fixedly arranged on the top of the inner cavity of the electrolytic tank 1 so that when the rotating disc 31 rotates under the driving of the hollow rotating shaft 21, the two stirring rods 32 revolve around the hollow rotating shaft 21 as the axis, and in the revolution process of the two stirring rods 32, the third gear 33 drives the stirring rods 32 due to the limitation of the gear ring 34.
As shown in fig. 4, the activated carbon and iron filings holding mechanism 4 includes a sliding sleeve 41, a spherical holding net cover 42, a first spring 43 and a sliding sleeve 44, wherein, the sliding sleeve 41 is slidably sleeved on the outside of the stirring rod 32, the sliding sleeve 41 is fixedly sleeved on the outside of the sliding sleeve 41, the spherical holding net cover 42 is internally filled with activated carbon and iron filings, the first spring 43 and the sliding sleeve 44 are both provided with two, the first spring 43 and the sliding sleeve 44 are both sleeved on the outside of the stirring rod 32, one end of the first spring 43 is fixedly connected with the sliding sleeve 41 and the other end of the first spring is fixedly connected with the adjacent sliding sleeve 44, so that the sliding sleeve 41 can drive the spherical holding net cover 42 to slide on the outside of the stirring rod 32, and simultaneously, when the activated carbon and iron filings holding mechanism 4 is compressed, the two first springs 43 are both shortened, and the whole height of the activated carbon and iron filings holding mechanism 4 is reduced.
As shown in fig. 5, the blocking lifting mechanism 5 includes a threaded sleeve 51, an inner lifting plate 52, an outer lifting plate 53 and a guide rod 54, where the threaded sleeve 51 is sleeved at the bottom of the outer side of the reciprocating screw 25 and is in threaded connection with the reciprocating screw 25, the inner lifting plate 52 is fixedly sleeved at the bottom of the outer side of the threaded sleeve 51, the outer lifting plate 53 is rotatably sleeved at the outer side of the inner lifting plate 52 through a bearing, two guide rods 54 are provided, the two guide rods 54 are respectively and slidably penetrated at two sides of the top of the inner lifting plate 52, and the bottom ends of the guide rods 54 are fixedly connected with the inner wall of the electrolytic tank 1, so that when the reciprocating screw 25 drives the threaded sleeve 51 to lift, the inner lifting plate 52 drives the outer lifting plate 53 to synchronously lift under the limitation of the guide rods 54, and when the outer lifting plate 53 lifts, slides at the outer side of the stirring rod 32, so as to push and compress the activated carbon and the scrap iron containing mechanism 4.
As shown in fig. 3, the trigger type water supply mechanism 6 includes a trigger plate 61, a second spring 62, a limiting block 63, an annular rotating block 64, an L-shaped rod 65, a sealing collar 66, a water inlet through hole 67 and a cleaning water input pipe 68, wherein, the trigger plate 61 is slidably sleeved on the outer sides of the two guide rods 54, the second spring 62 and the limiting block 63 are both provided with two, the second spring 62 is respectively sleeved on the outer sides of the two guide rods 54, the two limiting block 63 is respectively fixedly arranged at the top ends of the two guide rods 54, one end of the second spring 62 is fixedly connected with the trigger plate 61 and the other end is fixedly connected with the limiting block 63, the annular rotating block 64 is rotatably nested at the top of the trigger plate 61 through a bearing, the L-shaped rod 65 is provided with two, the two L-shaped rods 65 are respectively fixedly arranged on the two sides of the top of the annular rotating block 64, the sealing collar 66 is slidably sleeved on the outer sides of the hollow rotating shaft 21 and fixedly connected with the two L-shaped rods 65, the water inlet through hole 67 penetrates through the hollow rotating shaft 21, the cleaning water inlet through hole 67 is fixedly arranged at the top of the hollow rotating shaft 21, one end of the limiting block is fixedly connected with the limiting block 63 through the hollow rotating shaft 68, the water input pipe 61 is continuously, and the water is continuously connected with the hollow rotating pipe 68 through the hollow rotating shaft 52, and the water input pipe 68 is continuously enters the water inlet through the limiting pipe 68, and is continuously connected with the water through the hollow water input pipe 68, and enters the hollow water through the limiting pipe 68, and is continuously through the limiting pipe 68, and has the water through the limiting effect, and can be continuously through the water.
Example 2
The method for deeply treating and desalting the sucralose extraction wastewater specifically comprises the following steps:
s1, performing coagulation treatment on sucralose extraction wastewater to obtain supernatant, performing ion chromatography external standard method analysis on the supernatant to obtain the types and the contents of anions in the wastewater, adding quantitative strong alkaline substances according to analysis results, performing rectification treatment to remove ammonia nitrogen in the wastewater so as to reach the emission standard of ammonia nitrogen, and simultaneously obtaining aqueous solution of dimethylamine and ammonia and tower kettle wastewater, and adjusting the pH value of the tower kettle wastewater;
s2, inputting the pH value-adjusted tower kettle wastewater into the electrolytic tank 1 through a tower kettle wastewater input pipe 7, wherein the liquid level is lower than the heights of an outlet of the tower kettle wastewater input pipe 7 and an inlet of a cleaning water output pipe 9, enabling the tower kettle wastewater to pass through holes on a spherical accommodating net cover 42 to contact with activated carbon and scrap iron in the spherical accommodating net cover 42, starting a micro-electrolysis assembly in the electrolytic tank 1, and simultaneously starting a driving motor 23, so that the driving motor 23 drives a hollow rotating shaft 21 to rotate clockwise through a first gear 22 and a second gear 24, at the moment, the hollow rotating shaft 21 drives two stirring rods 32 to revolve around the hollow rotating shaft 21 through a rotating disk 31, and driving a plurality of activated carbon and scrap iron accommodating mechanisms 4 to revolve synchronously when the stirring rods 32 revolve so as to stir the tower kettle wastewater, and enabling the activated carbon and scrap iron in the spherical accommodating net cover 42 to contact with the tower kettle wastewater more effectively;
s3, after the micro-electrolysis of the wastewater at the tower kettle is finished, outputting the wastewater through an electrolytic wastewater output pipe 8, carrying out Fenton method treatment, further degrading organic matters which are difficult to degrade in the wastewater, carrying out ozone oxidation treatment on the wastewater after the Fenton method treatment is finished, and finally carrying out evaporation concentration treatment on the wastewater after the ozone oxidation treatment to obtain cleaner salt and fresh water;
s4, after the waste water in the electrolytic tank 1 is discharged, the driving motor 23 drives the hollow rotating shaft 21 to rotate anticlockwise through the first gear 22 and the second gear 24, the reciprocating screw rod 25 is driven by the hollow rotating shaft 21 to rotate synchronously, at the moment, the threaded sleeve 51 drives the inner lifting plate 52 and the outer lifting plate 53 to lift along the reciprocating screw rod 25, and the outer lifting plate 53 pushes the activated carbon and scrap iron containing mechanism 4 outside the stirring rod 32 upwards when lifting;
s5, when the rising heights of the inner lifting plate 52 and the outer lifting plate 53 reach a first threshold value, at this time, the heights of the inner lifting plate 52 and the outer lifting plate 53 are larger than the inlet height of the cleaning water output pipe 9, the inner lifting plate 52 starts to push the trigger plate 61, the trigger plate 61 drives the sealing collar 66 to move upwards through the annular rotating block 64 and the L-shaped rod 65, at this time, the sealing collar 66 releases the sealing of the water inlet hole 67, cleaning water output by the cleaning water input pipe 68 enters the inside of the electrolytic tank 1 through the water inlet hole 67, and is accumulated at the top of the inner cavity of the electrolytic tank 1 due to the blocking of the inner lifting plate 52 and the outer lifting plate 53, in the process, the hollow rotating shaft 21 continuously drives the two stirring rods 32 and the plurality of activated carbon and iron filings accommodating mechanisms 4 to revolve through the rotating disk 31, so that the activated carbon and the iron filings accommodating mechanisms 4 are effectively contacted with the cleaning water, and are cleaned, and in the cleaning process of the activated carbon and iron filings accommodating mechanisms 4, the outer lifting plate 53 continuously drives the activated carbon and the iron filings accommodating mechanisms 4 to rise, and compresses the first springs 43 in the activated carbon and the iron filings accommodating mechanisms 4;
s6, when the rising heights of the inner lifting plate 52 and the outer lifting plate 53 reach a second threshold value, due to the arrangement of the reciprocating threads on the outer side of the reciprocating screw rod 25, the reciprocating screw rod 25 starts to drive the inner lifting plate 52 and the outer lifting plate 53 to descend, and along with the continuous movement of the inner lifting plate 52 and the outer lifting plate 53, when the current heights of the inner lifting plate 52 and the outer lifting plate 53 are smaller than the first threshold value, the second spring 62 drives the trigger plate 61 to reset, so that the sealing collar 66 seals the water inlet through hole 67, and cleaning water is not output any more;
s7, when the inner lifting plate 52 and the outer lifting plate 53 move to the bottom of the opening of the cleaning water output pipe 9, the driving motor 23 is stopped, cleaning water is discharged through the cleaning water output pipe 9, then the driving motor 23 continues to drive the hollow rotating shaft 21 to rotate anticlockwise, the blocking lifting mechanism 5 is reset, and after the blocking lifting mechanism 5 is reset, the activated carbon and scrap iron containing mechanism 4 synchronously slide and reset outside the stirring rod 32.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (1)
1. A method for deeply treating and desalting sucralose extraction wastewater is characterized by comprising the following steps: the method for deeply treating and desalting the sucralose extraction wastewater is realized by using equipment for deeply treating and desalting the sucralose extraction wastewater, the equipment for deeply treating and desalting the sucralose extraction wastewater comprises an electrolytic tank (1), a driving mechanism (2) is jointly arranged at the inner cavity of the electrolytic tank (1) and the top of the electrolytic tank (1), a reciprocating screw rod (25) in the driving mechanism (2) cannot be driven to synchronously rotate when a hollow rotating shaft (21) in the driving mechanism (2) rotates clockwise, the reciprocating screw rod (25) in the driving mechanism (2) is driven to synchronously rotate when the hollow rotating shaft (21) rotates anticlockwise, a stirring mechanism (3) is connected to the driving mechanism (2) in a transmission way, a plurality of activated carbons and scrap iron containing mechanisms (4) are arranged on the stirring mechanism (3), a barrier lifting mechanism (5) is arranged at the bottom of the inner cavity of the electrolytic tank (1), a barrier lifting mechanism (53) compresses the activated carbons and the scrap iron containing mechanisms (4) when an outer lifting plate (53) in the barrier lifting mechanism (5) ascends, a trigger mechanism (6) is arranged on the trigger mechanism (5), a trigger mechanism (6) drives a water supply and a trigger mechanism (6) in the trigger mechanism (6), the middle part of the left side of the electrolytic tank (1) is fixedly provided with a tower kettle wastewater input pipe (7) in a penetrating manner, the bottom of the right side of the electrolytic tank (1) is fixedly provided with an electrolytic wastewater output pipe (8) in a penetrating manner, and the middle part of the right side of the electrolytic tank (1) is fixedly provided with a cleaning water output pipe (9) in a penetrating manner;
the driving mechanism (2) comprises a hollow rotating shaft (21), a first gear (22), a driving motor (23), a second gear (24) and a reciprocating screw rod (25);
the hollow rotating shaft (21) is rotatably nested and arranged at the top of the electrolytic tank (1) through a bearing, the first gear (22) is fixedly sleeved at the top of the outer side of the hollow rotating shaft (21), the driving motor (23) is fixedly arranged at the right side of the top of the electrolytic tank (1), the second gear (24) is in transmission connection with the driving motor (23) and meshed with the first gear (22), and the top end of the reciprocating screw rod (25) is connected with the bottom end of the hollow rotating shaft (21) through an overrunning clutch;
the stirring mechanism (3) comprises a rotary disc (31), a stirring rod (32), a third gear (33) and a gear ring (34);
the rotary disk (31) is fixedly sleeved on the outer side of the hollow rotary shaft (21), two stirring rods (32) and three gears (33) are respectively arranged, the two stirring rods (32) are respectively and rotatably arranged on two sides of the top of the rotary disk (31) in a penetrating mode through bearings, two gear rings (34) are respectively and fixedly arranged on the top ends of the two third gears (33), the gear rings (34) are sleeved on the outer sides of the two third gears (33) and meshed with the two third gears (33), and the gear rings (34) are fixedly arranged on the top of an inner cavity of the electrolytic tank (1);
the active carbon and scrap iron containing mechanism (4) comprises a sliding sleeve (41), a spherical containing net cover (42), a first spring (43) and a sliding sleeve ring (44);
the utility model discloses a stirring rod, including stirring rod (32) and slide sleeve (41), slide sleeve (41) is fixed to be cup jointed in the puddler (32) outside, the spherical screen panel (42) that holds is inside to be filled with active carbon and iron fillings, first spring (43) and slide sleeve (44) all are provided with two, first spring (43) and slide sleeve (44) all cup joint and set up in puddler (32) outside, first spring (43) one end and slide sleeve (41) fixed connection and the other end and adjacent slide sleeve (44) fixed connection;
the blocking lifting mechanism (5) comprises a threaded sleeve (51), an inner lifting plate (52), an outer lifting plate (53) and a guide rod (54);
the screw sleeve (51) is sleeved at the outer bottom of the reciprocating screw rod (25) and is in threaded connection with the reciprocating screw rod (25), the inner lifting plate (52) is fixedly sleeved at the outer bottom of the screw sleeve (51), the outer lifting plate (53) is rotatably sleeved at the outer side of the inner lifting plate (52) through a bearing, the two guide rods (54) are arranged, the two guide rods (54) are respectively and slidably arranged at two sides of the top of the inner lifting plate (52), and the bottom end of the guide rod (54) is fixedly connected with the inner wall of the electrolytic tank (1);
the trigger type water supply mechanism (6) comprises a trigger plate (61), a second spring (62), a limiting block (63), an annular rotating block (64), an L-shaped rod (65), a sealing sleeve ring (66), a water inlet through hole (67) and a cleaning water input pipe (68);
the trigger plate (61) is sleeved on the outer sides of the two guide rods (54) in a sliding mode, the second springs (62) and the limiting blocks (63) are respectively arranged in two, the two second springs (62) are respectively sleeved on the outer sides of the two guide rods (54), the two limiting blocks (63) are respectively fixedly arranged at the top ends of the two guide rods (54), one end of the second springs (62) is fixedly connected with the trigger plate (61) and the other end of the second springs is fixedly connected with the limiting blocks (63), the annular rotating blocks (64) are rotatably nested at the top of the trigger plate (61) through bearings, the two L-shaped rods (65) are arranged on two sides of the top of the annular rotating blocks (64), the sealing sleeve rings (66) are fixedly sleeved on the outer sides of the hollow rotating shaft (21) in a sliding mode and are fixedly connected with the two L-shaped rods (65), the water inlet through holes (67) are formed in the hollow rotating shaft (21) in a penetrating mode, and the cleaning water input pipe (68) is connected with the hollow rotating shaft (21) through the rotating joint top end.
The method for deeply treating and desalting the sucralose extraction wastewater specifically comprises the following steps:
s1, performing coagulation treatment on sucralose extraction wastewater to obtain supernatant, performing ion chromatography external standard method analysis on the supernatant to obtain the types and the contents of anions in the wastewater, adding quantitative strong alkaline substances according to analysis results, performing rectification treatment to remove ammonia nitrogen in the wastewater so as to reach the emission standard of ammonia nitrogen, and simultaneously obtaining aqueous solution of dimethylamine and ammonia and tower kettle wastewater, and adjusting the pH value of the tower kettle wastewater;
s2, inputting the pH value-adjusted tower kettle wastewater into the electrolytic tank (1) through a tower kettle wastewater input pipe (7), wherein the liquid level is lower than the heights of an outlet of the tower kettle wastewater input pipe (7) and an inlet of a cleaning water output pipe (9), enabling the tower kettle wastewater to pass through holes in a spherical accommodating net cover (42) to be in contact with active carbon and scrap iron in the spherical accommodating net cover (42), starting a micro-electrolysis assembly in the electrolytic tank (1), and simultaneously starting a driving motor (23), so that the driving motor (23) drives a hollow rotating shaft (21) to rotate clockwise through a first gear (22) and a second gear (24), at the moment, the hollow rotating shaft (21) drives two stirring rods (32) to revolve around the hollow rotating shaft (21) through a rotating disk (31), and driving a plurality of active carbon and scrap iron accommodating mechanisms (4) to synchronously revolve when the stirring rods (32) revolve so as to stir the tower kettle wastewater, and enabling the active carbon and scrap iron in the spherical accommodating net cover (42) to more effectively revolve around the tower kettle wastewater;
s3, outputting the wastewater through an electrolysis wastewater output pipe (8) after the micro-electrolysis of the wastewater at the tower kettle is finished, carrying out Fenton method treatment, further degrading organic matters which are difficult to degrade in the wastewater, carrying out ozone oxidation treatment on the wastewater after the Fenton method treatment is finished, and finally carrying out evaporation concentration treatment on the wastewater after the ozone oxidation treatment to obtain cleaner salt and fresh water;
s4, after the waste water in the electrolytic tank (1) is discharged, a driving motor (23) drives a hollow rotating shaft (21) to rotate anticlockwise through a first gear (22) and a second gear (24), a reciprocating screw rod (25) synchronously rotates under the driving of the hollow rotating shaft (21), at the moment, a threaded sleeve (51) drives an inner lifting plate (52) and an outer lifting plate (53) to lift along the reciprocating screw rod (25), and the outer lifting plate (53) pushes a plurality of activated carbon and scrap iron containing mechanisms (4) on the outer side of a stirring rod (32) upwards when lifting;
s5, when the rising heights of the inner lifting plate (52) and the outer lifting plate (53) reach a first threshold value, the inner lifting plate (52) and the outer lifting plate (53) are higher than the inlet height of the cleaning water output pipe (9), the inner lifting plate (52) starts to push the trigger plate (61), the trigger plate (61) drives the sealing sleeve ring (66) to move upwards through the annular rotating block (64) and the L-shaped rod (65), at the moment, the sealing sleeve ring (66) releases the sealing of the water inlet through hole (67), the cleaning water output by the cleaning water input pipe (68) enters the electrolytic tank (1) through the water inlet through hole (67), the inner lifting plate (52) and the outer lifting plate (53) are blocked at the top of the inner cavity of the electrolytic tank (1) to accumulate, in the process, the hollow rotating shaft (21) continuously drives the two stirring rods (32) and the plurality of activated carbon and scrap iron containing mechanisms (4) to revolve through the rotating disc (31), so that the activated carbon and scrap iron containing mechanisms (4) are effectively contacted with cleaning water to be cleaned, and meanwhile, in the cleaning process of the activated carbon and scrap iron containing mechanisms (4), the outer lifting plate (53) continuously drives the activated carbon and scrap iron containing mechanisms (4) to ascend and compresses a first spring (43) in the activated carbon and scrap iron containing mechanisms (4);
s6, when the rising heights of the inner lifting plate (52) and the outer lifting plate (53) reach a second threshold value, the reciprocating screw rod (25) starts to drive the inner lifting plate (52) and the outer lifting plate (53) to descend due to the arrangement of the reciprocating screw threads on the outer side of the reciprocating screw rod (25), and along with the continuous movement of the inner lifting plate (52) and the outer lifting plate (53), when the current heights of the inner lifting plate (52) and the outer lifting plate (53) are smaller than the first threshold value, the second spring (62) drives the trigger plate (61) to reset, so that the sealing collar (66) seals the water inlet through hole (67), and cleaning water is not output any more;
s7, when the inner lifting plate (52) and the outer lifting plate (53) move to the bottom of the opening of the cleaning water output pipe (9), stopping the driving motor (23), discharging the cleaning water through the cleaning water output pipe (9), and then enabling the driving motor (23) to continuously drive the hollow rotating shaft (21) to rotate anticlockwise, further enabling the blocking lifting mechanism (5) to reset, and enabling the activated carbon and scrap iron containing mechanism (4) to synchronously slide and reset outside the stirring rod (32) after the blocking lifting mechanism (5) resets.
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