A sedimentation tank for treating wastewater from the production process of a water-based cigarette adhesive

Abstract

The application belongs to the field of wastewater treatment, and particularly relates to a precipitation tank for wastewater treatment in the production process of water-based glue for cigarettes. The precipitation tank comprises a pretreatment box, a flocculation box and a precipitation box. The flocculation box is located between the pretreatment box and the precipitation box and is in communication with both. An inlet pipe is fixed to the end of the pretreatment box. A water pump and a negative pressure pump for extracting precipitates are installed on the outside of the precipitation box. A circulating cylinder is arranged in the middle of the inner side of the flocculation box. The upper and lower parts of the circulating cylinder are in communication. A driving fan capable of rotating is arranged in the middle of the circulating cylinder. A fixed seat capable of putting flocculants is arranged above the circulating cylinder. The precipitation tank can ensure the sufficient mixing effect of wastewater and flocculants, effectively improve the combination effect of the two, and assist the subsequent large-particle precipitation process.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of wastewater treatment, and particularly relates to a sedimentation tank for wastewater treatment in the production process of water-based glue for cigarettes. BACKGROUND

[0002] The water-based glue for cigarettes is an environment-friendly adhesive for tobacco packaging, and in the production process of the water-based glue for cigarettes, the wastewater mainly includes equipment flushing wastewater, ground flushing wastewater and wastewater generated in the production process.

[0003] In the wastewater treatment generated in the production process of the water-based glue for cigarettes, the sedimentation tank is mainly used in the pretreatment stage and is particularly used for removing colloidal particles and part of precipitable pollutants in the wastewater; the sedimentation tank separates solid particles and suspended solids in the wastewater through gravity sedimentation, reduces the turbidity and suspended solid concentration of the wastewater, and reduces the burden of the subsequent treatment process.

[0004] The traditional sedimentation tank often only adopts gravity sedimentation, so that the large particles in the wastewater are naturally combined with the flocculant, and then separated and precipitated under the action of gravity, which easily leads to a long overall precipitation period, and easily leads to the problem that the particles in the wastewater have not been fully combined with the flocculant and have been discharged, resulting in a reduction in the treatment effect; however, if a stirring or mixing component is directly added to the sedimentation tank, the overall water flow mobility is enhanced, which is not conducive to the sedimentation process of the large particles.

[0005] Therefore, the present application provides a sedimentation tank for wastewater treatment in the production process of water-based glue for cigarettes. SUMMARY

[0006] To solve the problem that the traditional sedimentation tank often only adopts gravity sedimentation, so that the large particles in the wastewater are naturally combined with the flocculant, and then separated and precipitated under the action of gravity, which easily leads to a long overall precipitation period, and easily leads to the problem that the particles in the wastewater have not been fully combined with the flocculant and have been discharged, resulting in a reduction in the treatment effect; however, if a stirring or mixing component is directly added to the sedimentation tank, the overall water flow mobility is enhanced, which is not conducive to the sedimentation process of the large particles, the present application provides a sedimentation tank for wastewater treatment in the production process of water-based glue for cigarettes.

[0007] It includes a pretreatment box, a flocculation box and a sedimentation box, the flocculation box is located between the pretreatment box and the sedimentation box and is in communication with both, the end of the pretreatment box is fixedly connected with a feeding pipe, a water pump and a negative pressure pump for extracting sediments are installed on the outside of the sedimentation box, a circulating cylinder is arranged in the middle of the inside of the flocculation box, the upper and lower parts of the circulating cylinder are throughly arranged, a driving fan capable of rotating is arranged in the middle of the circulating cylinder, and a fixed seat capable of putting flocculants is arranged above the circulating cylinder; under the communication principle and the pressure balance effect of the liquid, the horizontal plane heights of the three are the same, the water at the uppermost part of the sedimentation box is extracted by the water pump to obtain clean water resources, and the sediments deposited at the bottom are periodically adsorbed by the negative pressure pump to periodically transfer the sediments outward; the full use of flocculants is ensured, and the adjustment process of the dosing amount of flocculants for different waste water is facilitated at the same time.

[0008] Through the arrangement, the segmented treatment effect of waste water is realized, since the pretreatment box, the flocculation box and the sedimentation box are relatively independent, the circulating water flow generated by the flocculation box tends to be stable when entering the sedimentation box, and then rapid gravity sedimentation can be carried out, and under the action of the circulating water flow in the flocculation box, the full mixing effect of waste water and flocculants can be ensured, the combination effect of the two is effectively improved, and the subsequent large particle sedimentation process is assisted; meanwhile, the water circulation mode of the circulating cylinder can effectively drive the overall water source in the flocculation box, and since the unique circulation mode, in the circulating process, part of the water flow in the flowing water body close to the sedimentation box side carries sediments into the sedimentation box for final sedimentation, and if a general central stirring is used, it is difficult to make the sediments continuously transfer to the sedimentation box in the stirring process, thereby realizing the effect of uninterrupted mixing processing.

[0009] As a further improvement of the technical scheme, the inside of the flocculation box is provided with a circular cross-section circulating groove, a plurality of guide plates are fixedly connected to the outside of the circulating cylinder, the plurality of guide plates are arranged in a ring shape at equal intervals, the top of the guide plate is attached to the bottom of the circulating groove, and the circulating cylinder can rotate in the same direction as the driving fan, so as to ensure the smooth transfer process of the sediments, greatly reduce the deposition of sediments in the equipment, and solve the problems of increased subsequent treatment work and reduced mixing effect.

[0010] As a further improvement of the technical solution, the flocculation tank is provided with a flow-through groove at the bottom of one side close to the pretreatment tank, and a lifting valve plate is arranged at the side close to the sedimentation tank, a hydraulic rod for controlling the lifting of the lifting valve plate is installed at the bottom of the lifting valve plate, and the driving fan is designed as a bidirectional fan blade that can inhale air when rotating in the forward direction and exhaust air when rotating in the reverse direction, and an asymmetric S-shaped airfoil blade design can be used to achieve this effect; through such a design, and by periodically controlling the driving fan to rotate forward and reverse, the flow direction of the circulating water flow is changed, and by regularly switching the water flow direction, not only can the forward and reverse flushing of the parts inside the circulating cylinder be realized, and the phenomenon of sediment adhesion caused by long-term unidirectional water flow can be reduced, but also because the circulating direction is changed, the sediment that is originally difficult to flow to the sedimentation tank due to its large size or other reasons can be smoothly transferred to the sedimentation tank along the new circulating direction.

[0011] As a further improvement of the technical solution, the driving motor is installed above the pretreatment tank and the flocculation tank, the stirring rod is arranged inside the pretreatment tank, the driving motor above the pretreatment tank is used to drive the stirring rod to rotate, and the driving motor above the flocculation tank is used to drive the circulating cylinder and the driving fan to rotate, achieving the effects of water flow circulation in the flocculation tank and the friction of the guide plate on the sediment.

[0012] As a further improvement of the technical solution, the driving motor above the flocculation tank is fixedly connected with a transmission rod at the bottom output end, the transmission rod is fixedly connected with the driving fan at the top outside, a planetary reducer is installed in the middle of the transmission rod, the bottom output end of the planetary reducer is annular and arranged at the bottom of the transmission rod, and the top output end of the planetary reducer is fixedly connected with the circulating cylinder through a transmission frame, achieving the synchronous rotation effect.

[0013] As a further improvement of the technical solution, the top of the circulating cylinder is provided with an outwardly extending eave, a plurality of support frames are fixedly connected to the inner wall of the circulating cylinder, the support frames are slidingly connected with the eave of the circulating cylinder, and the two sides of the planetary reducer are fixedly connected with the flocculation tank through two fixing seats; the support frames are used to limit the circulating cylinder, so that the circulating cylinder can normally rotate, the fixing seats are used to fix the shell of the planetary reducer, and the fixing seats are used to normally discharge the flocculating agent at the bottom.

[0014] As a further improvement of the technical solution, the guide plate is arranged in a bent shape, a plurality of guide plates are arranged in a ring shape at equal intervals, the edge of the guide plate is attached to the side wall of the circulating groove, and when the guide plate rotates clockwise, the sediment rubbed at the bottom of the flocculation tank will gradually concentrate towards the center. At this time, the water flow direction is as shown in the figure, and the water flow at the bottom of the circulating cylinder is continuously discharged downward, so that the concentrated sediment is dispersed by the water flow and mixed into the water flow, and finally transferred to the sediment tank for sedimentation, further reducing the problem of sediment deposition at the bottom of the flocculation tank.

[0015] As a further improvement of the technical solution, the inner wall of the circulating cylinder is fixedly connected with a plurality of receiving valves communicated with the guide plates, the input end of the receiving valve faces upward, and a plurality of inclined downward nozzles are fixedly connected to the outer side of the top of the guide plate. When the downward water flow is generated in the circulating cylinder, part of the water flow will enter the receiving valve. A filter screen is arranged on the top surface of the receiving valve to filter particulate matter. At the same time, the top surface of the receiving valve is inclined, so that the particulate matter will not stay above. The water flow is transmitted to the nozzle through the receiving valve, so that the nozzle continuously sprays water flow outward. In this way, during the rotation of the guide plate, the guide plate does not need to excessively attach and rub the bottom of the flocculation tank, but the flocculation is scraped off by the water flow, further improving the scraping effect.

[0016] As a further improvement of the technical solution, the inner wall of the circulating cylinder is fixedly connected with a baffle two, the baffle two is located above the driving fan, and a hole for allowing the transmission rod to pass through is formed in the middle of the baffle two. The water flow entering the circulating cylinder is diverted and rubbed through the baffle two, improving the combination effect of the flocculant and the wastewater. The design of the hole allows the transmission rod and the circulating cylinder to rotate independently without interfering with each other.

[0017] As a further improvement of the technical solution, the bottom of the sediment tank is fixedly connected with a suction pipe communicated with a negative pressure pump, a plurality of suction pipes are installed on the outer side of the bottom of the suction pipe, a baffle one is fixedly connected to the middle of the sediment tank, a plurality of recovery frames are fixedly connected to the upper side of the baffle one, the outer side of the sediment tank is fixedly connected with a transfer pipe communicated with the plurality of recovery frames, and an independent recovery groove is formed in the inner side of the top of the sediment tank. The transfer pipe and the recovery groove are communicated, the water pump and the recovery groove are communicated through a pipeline, and the large particles entering the sediment tank will sink under the action of gravity. The negative pressure pump is started to periodically suck the sediment, the water source above is transferred to the recovery groove through the transfer pipe after passing through the recovery frame, and finally is sucked out by the water pump, so as to complete the transfer effect of the sediment and the clean water.

[0018] Compared with the prior art, the beneficial effects of the present application are:

[0019] The wastewater treatment sedimentation tank for the cigarette water-based glue production process can ensure the sufficient mixing effect of the wastewater and the flocculating agent, effectively improves the combination effect of the two, and assists the subsequent large particle sedimentation process.

[0020] The water circulation mode of the circulating cylinder in the wastewater treatment sedimentation tank for the cigarette water-based glue production process can effectively drive the overall water source in the flocculating tank, and due to the unique circulation mode, in the circulating process, part of the water flow near the side of the sedimentation tank carries the precipitates into the sedimentation tank for the last sedimentation, so that the effect of uninterrupted mixing processing is realized.

[0021] In the wastewater treatment sedimentation tank for the cigarette water-based glue production process, the large particles at the bottom of the sedimentation flocculating tank are pushed by the guide plate, the particles can be carried by the water flow again and enter the circulating water flow, and are transferred to the sedimentation tank in the circulating process. Through the arrangement, the smooth transfer process of the precipitates is ensured, and the problems of the deposition of the precipitates in the equipment, the increase of the subsequent treatment work and the reduction of the mixing effect are greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below with reference to the drawings.

[0023] Figure 1 is a perspective view of the application;

[0024] Figure 2 is a sectional view of the application;

[0025] Figure 3 is a perspective view of the pretreatment tank and the flocculating tank of the application;

[0026] Figure 4 is a perspective view of the flocculating tank of the application;

[0027] Figure 5 is a perspective view of the circulating cylinder and the guide plate of the application;

[0028] Figure 6 is a perspective view of the baffle plate two and the driving fan of the application;

[0029] Figure 7 is a perspective view of the sedimentation tank of the application;

[0030] Figure 8 is a side sectional view of the application;

[0031] Figure 9 is a top view of the circulating cylinder and the guide plate of the application.

[0032] In the figure: 1, pre-treatment box; 2, flocculation box; 3, sedimentation tank; 4, feed pipe; 5, drive motor; 7, transfer pipe; 8, water pump; 9, negative pressure pump; 10, stirring rod; 11, circulating cylinder; 12, guide plate; 13, lift valve plate; 14, recovery frame; 15, recovery tank; 16, baffle plate one; 17, suction pipe; 18, support frame; 19, circulating tank; 20, fixed seat; 21, planetary reducer; 22, hydraulic rod; 23, flow-through tank; 25, transmission rod; 26, transmission frame; 27, baffle plate two; 28, drive fan; 29, receiving valve; 30, nozzle. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] The conventional sedimentation tank often only uses gravity sedimentation to allow large particles in wastewater to naturally combine with flocculants, and then to separate and precipitate under the action of gravity, which easily leads to a long overall precipitation period, and easily leads to the problem that the particles in the wastewater have not been fully combined with the flocculants before being discharged, resulting in reduced treatment effect. However, if a stirring or mixing component is directly added to the sedimentation tank, the overall water flow mobility will be enhanced, which is not conducive to the sedimentation process of large particles.

[0035] Therefore, the present application provides a sedimentation tank for treating wastewater in the production process of water-based glue for cigarettes, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8 , which comprises a pre-treatment box 1, a flocculation box 2 and a sedimentation tank 3. The flocculation box 2 is located between the pre-treatment box 1 and the sedimentation tank 3 and is in communication with both. The end of the pre-treatment box 1 is fixedly connected with a feed pipe 4. The outer side of the sedimentation tank 3 is provided with a water pump 8 and a negative pressure pump 9 for extracting sediment. The inner side of the flocculation box 2 is provided with a circulating cylinder 11 in the middle. The upper and lower portions of the circulating cylinder 11 are in communication. The middle of the circulating cylinder 11 is provided with a drive fan 28 capable of rotating. The upper portion of the circulating cylinder 11 is provided with a fixed seat 20 capable of adding flocculants.

[0036] When working, the wastewater to be treated is transmitted into the pretreatment tank 1 through the feeding pipe 4, and an appropriate amount of flocculating agent is also input into the pretreatment tank 1 through another input port of the feeding pipe 4, and after the first mixing of the wastewater and the flocculating agent in the pretreatment tank 1, the wastewater and the flocculating agent enter the flocculation tank 2, and through the rotation of the driving fan 28, the suction force is generated above the circulating cylinder 11, and then the liquid is sucked into the circulating cylinder 11, and then discharged from the lower part of the circulating cylinder 11, so as to form a continuously circulating water flow, and with the continuous circulation of the water flow, the flocculating agent and the wastewater can be effectively combined, so as to make the small particles in the wastewater gather into large particles, and in the circulation process, part of the large particles gathered are entered into the sedimentation tank 3, and under the action of gravity, the large particles are deposited at the bottom of the sedimentation tank 3, and the pretreatment tank 1, the flocculation tank 2 and the sedimentation tank 3 are communicated, and under the action of the communicating vessel principle and the pressure balance of the liquid, the horizontal plane heights of the three are the same, the water at the uppermost part of the sedimentation tank 3 is pumped out through the water pump 8, and the clean water resource is obtained, and the sediment deposited at the bottom is periodically adsorbed through the negative pressure pump 9, and the sediment is periodically transferred outward.

[0037] The part of the fixed seat 20 exposed outside the flocculation tank 2 is communicated with a feeding pipe, and an appropriate amount of flocculating agent is added through the feeding pipe, and the flocculating agent enters the flocculation tank 2 from above the circulating cylinder 11, and is combined with the wastewater entering the circulating cylinder 11, so as to ensure the full use of the flocculating agent; the flocculating agent added by the feeding pipe 4 is the initial constant amount, and is used for the preliminary combination with the wastewater for the first time, and since the difference between the required amounts of flocculating agents for different wastewaters is large, while keeping the initial constant amount unchanged, the amount of the flocculating agent added by the feeding pipe can be adjusted according to the requirements, so as to not only ensure the full use of the flocculating agent, but also facilitate the adjustment process of the amount of the flocculating agent added for different wastewaters.

[0038] Through the above arrangement, the segmented treatment effect of the wastewater is realized, since the pretreatment tank 1, the flocculation tank 2 and the sedimentation tank 3 are relatively independent, the circulating water flow generated in the flocculation tank 2 tends to be stable when entering the sedimentation tank 3, and then the gravity sedimentation can be quickly performed, and under the action of the circulating water flow in the flocculation tank 2, the full mixing effect of the wastewater and the flocculating agent can be ensured, and the combination effect of the two is effectively improved, which assists the subsequent large particle sedimentation process; meanwhile, the water circulation mode of the circulating cylinder 11 can effectively drive the overall water source in the flocculation tank 2, and since the unique circulation mode, part of the flowing water near the side of the sedimentation tank 3 carries the sediment into the sedimentation tank 3 for the final sedimentation in the circulation process, and if the general central stirring is used, it is difficult to make the sediment continuously transfer to the sedimentation tank 3 in the stirring process, so as to realize the effect of uninterrupted mixing processing.

[0039] Further, referring to Figures 1-6As shown, the inside of the flocculation tank 2 is provided with a circular cross-section circulating groove 19, the outside of the circulating cylinder 11 is fixedly connected with a plurality of guide plates 12, the plurality of guide plates 12 are arranged in a ring shape at equal intervals, the top of the guide plate 12 is attached to the bottom of the circulating groove 19, the circulating cylinder 11 can rotate in the same direction with the driving fan 28, and during work, by arranging the guide plate 12, firstly, the wastewater entering from the pretreatment tank 1 can be prevented from directly entering the sedimentation tank 3 from both sides of the circulating cylinder 11, and the wastewater can be further ensured to fully participate in the circulating process, thereby improving the combination effect of the wastewater and the flocculant; in order to prevent the water flow in the flocculation tank 2 from appearing short flow phenomenon, a plurality of guide plates 12 are arranged on the outside of the circulating cylinder 11, and during the rotation of the driving fan 28, the circulating cylinder 11 rotates in the same direction synchronously, but the rotation speed is much smaller than that of the driving fan 28, so as not to disturb the water flow direction of the driving fan 28; during the rotation of the circulating cylinder 11, the guide plate 12 is constantly rubbed against the bottom of the flocculation tank 2, so that the large particles at the bottom of the flocculation tank 2 are scraped off, thereby preventing the particles from adhering and accumulating, and under the pushing of the guide plate 12, the particles can be brought up by the water flow again and enter the circulating water flow, and are transferred to the sedimentation tank 3 in the circulating process. Through this arrangement, the smooth transfer process of the sediment is ensured, and the deposition of the sediment in the equipment is greatly reduced, thereby reducing the problems of increased subsequent treatment work and reduced mixing effect.

[0040] Further, referring to Figures 1-4 As shown, the side of the flocculation tank 2 close to the pretreatment tank 1 is provided with a flow-through groove 23, and the side of the flocculation tank 2 close to the sedimentation tank 3 is provided with a lifting valve plate 13, the bottom of the lifting valve plate 13 is provided with a hydraulic rod 22 for controlling the lifting of the lifting valve plate 13, and the driving fan 28 is designed as a bidirectional fan blade. During work, the bidirectional fan blade can inhale air when rotating in the forward direction and exhaust air when rotating in the reverse direction, and an asymmetric S-shaped airfoil blade design can be used to achieve this effect. Through this arrangement, and combined with the periodic control of the forward and reverse rotation of the driving fan 28, the flow direction of the circulating water flow is changed, and by regularly switching the water flow direction, not only can the forward and reverse flushing of the parts inside the circulating cylinder 11 be realized, and the deposition of the sediment caused by the long-term unidirectional water flow is reduced, but also because the circulating direction is changed, the sediment that is originally difficult to flow to the sedimentation tank 3 due to its large size can be smoothly transferred to the sedimentation tank 3 along the new circulating direction. At the same time, the lifting valve plate 13 is controlled by the hydraulic rod 22, the position of the communication port between the flocculation tank 2 and the sedimentation tank 3 is adjusted, when the hydraulic rod 22 is elongated, the lifting valve plate 13 is lifted, at this time the communication port is below, at this time the water flow circulating direction is adjusted, the direction is opposite to the water flow direction of the driving fan 28, and the water flow direction is changed by 180 degrees, and the water flow direction is changed by 180 degrees. Figure 8The direction shown is opposite, from the outside of the circulating cylinder 11, the water flow is generated from top to bottom, part of the sediment will be discharged from the lower communication port, and the suction is generated at the bottom of the circulating cylinder 11, so that the problem of large-scale discharge of particulate matter into the sediment tank 3 does not occur, causing the sedimentation function of the sediment tank 3 to be insufficient. The flow channel 23 between the pretreatment tank 1 and the flocculation tank 2 is higher than the bottom surface of the flocculation tank 2, and the flow channel 23 continuously injects water flow into the flocculation tank 2, so that the sediment does not backflow. When the lifting valve plate 13 sinks, the communication port is located above at this time, the water flow direction is the same as shown at this time, and only the water source overflowing from the outside of the circulating cylinder 11 will enter the sediment tank 3 at this time, realizing the stable water inlet process of the sediment tank 3. It needs to be noted that the equipment is in the state shown for a long time Figure 8 The water flow entering the sediment tank 3 is in a slow state, and enters from top to bottom, which does not affect the already settled particulate matter in the sediment tank 3. The communication port is the space formed by the lifting valve plate 13 during lifting, which communicates the sediment tank 3 and the flocculation tank 2. Figure 8 Further, referring to

[0041] As shown, the driving motor 5 is installed above the pretreatment tank 1 and the flocculation tank 2. The inside of the pretreatment tank 1 is provided with a stirring rod 10. The driving motor 5 above the pretreatment tank 1 is used to drive the stirring rod 10 to rotate. The driving motor 5 above the flocculation tank 2 is used to drive the circulating cylinder 11 and the driving fan 28 to rotate. During work, the driving motor 5 drives the stirring rod 10 to rotate, and the driving motor 5 drives the driving fan 28 and the circulating cylinder 11 to rotate at the same time, realizing the water flow circulation in the flocculation tank 2 and the effect of the guide plate 12 rubbing the sediment. The water flow speed is the fastest at the bottom center position of the circulating cylinder 11, and there is no sediment accumulation, so the friction of the guide plate 12 is not needed. Figures 1-5 Further, referring to

[0042] As shown, the bottom output end of the driving motor 5 above the flocculation tank 2 is fixedly connected with a transmission rod 25. The outside of the top of the transmission rod 25 is fixedly connected with the driving fan 28. The middle part of the transmission rod 25 is provided with a planetary reducer 21. The bottom output end of the planetary reducer 21 is annular and is arranged at the bottom of the transmission rod 25. The top output end of the planetary reducer 21 is fixedly connected with the circulating cylinder 11 through a transmission frame 26. During work, the transmission rod 25 directly drives the driving fan 28 to rotate at high speed in the rotating process. At the same time, the transmission rod 25 drives the central gear of the planetary reducer 21 to rotate, and then drives the three planetary gears inside to do circular motion. The output ends of the circular motion of the three planetary gears are connected with a plurality of transmission frames 26, so as to drive the circulating cylinder 11 to rotate at the same speed. It needs to be noted that the planetary reducer 21 is located in the sewage, and is provided with a protective corrosion-resistant coating on the surface and has a waterproof effect. Figures 1-6 ​

[0043] Further, referring to Figures 3-9 As shown, the top of the circulating cylinder 11 is provided with an outwardly extending eaves, the inner wall of the circulating cylinder 11 is fixedly connected with a plurality of support frames 18, the support frames 18 are slidingly connected with the eaves of the circulating cylinder 11, the two sides of the planetary reducer 21 are fixedly connected with the flocculation tank 2 through two fixed seats 20, and during operation, the circulating cylinder 11 is limited by the support frames 18, so that the circulating cylinder 11 can normally rotate, and the fixed seat 20 is used to fix the shell of the planetary reducer 21, and the bottom of the fixed seat 20 normally discharges the flocculating agent.

[0044] Further, referring to Figures 1-9 As shown, the guide plate 12 is arranged in a bent shape, a plurality of guide plates 12 are arranged in a ring shape at equal intervals, the edge of the guide plate 12 is attached to the side wall of the circulating groove 19, and during operation, when the guide plate 12 rotates clockwise, the deposits rubbed at the bottom of the flocculation tank 2 will gradually concentrate towards the center, and at this time, the water flow direction is as shown in Figure 8 As shown, the bottom of the circulating cylinder 11 continuously discharges water flow downward, so that the concentrated deposits are continuously concentrated towards the center, the concentrated deposits are scattered by the water flow and mixed into the water flow, and finally are transferred to the sediment tank 3 for sedimentation, thereby further reducing the problem of deposition of the deposits at the bottom of the flocculation tank 2.

[0045] Further, referring to Figures 3-9 As shown, the inner wall of the circulating cylinder 11 is fixedly connected with a plurality of receiving valves 29 in communication with the guide plate 12, the input end of the receiving valve 29 faces upward, and the outer side of the guide plate 12 is fixedly connected with a plurality of nozzles 30 inclined downward at the top, and during operation, part of the downward water flow generated in the circulating cylinder 11 enters the receiving valve 29, a filter screen is arranged on the top surface of the receiving valve 29 to filter particulate matter, and the top surface of the receiving valve 29 is inclined, so that the particulate matter does not stay above, and the water flow is transmitted to the nozzle 30 through the receiving valve 29; because the water flow in the circulating cylinder 11 is from top to bottom at this time, the receiving valve 29 continuously receives the downwardly impacting water flow, so that the nozzle 30 continuously sprays water flow outward, so that during the rotation of the guide plate 12, the guide plate 12 does not need to excessively attach and rub the bottom of the flocculation tank 2, but the water flow is used to wash and remove the flocculating material, thereby further improving the bottom scraping effect.

[0046] Further, referring to Figures 1-7 As shown, the inside of the circulating cylinder 11 is fixedly connected with a baffle plate two 27, the baffle plate two 27 is located above the driving fan 28, and a hole is formed in the middle of the baffle plate two 27 for allowing the transmission rod 25 to pass through, and during operation, the water flow entering the circulating cylinder 11 is diverted and rubbed by the baffle plate two 27, thereby improving the combination effect of the flocculating agent and the wastewater, and the design of the hole allows the transmission rod 25 and the circulating cylinder 11 to rotate independently without interfering with each other.

[0047] Further, referring to Figures 1-7As shown, the bottom of the sediment tank 3 is fixedly connected with a suction pipe 17 communicated with the negative pressure pump 9, the outer bottom of the suction pipe 17 is provided with a plurality of suction pipes, the middle of the sediment tank 3 is fixedly connected with a baffle plate one 16, the upper side of the baffle plate one 16 is fixedly connected with a plurality of recovery frames 14, the outer side of the sediment tank 3 is fixedly connected with a transfer pipe 7 communicated with the plurality of recovery frames 14, the inner side of the sediment tank 3 is provided with an independent recovery groove 15 near the top, the transfer pipe 7 is communicated with the recovery groove 15, the water pump 8 is communicated with the recovery groove 15 through a pipeline, and during work, the large particles entering the sediment tank 3 will sink under the action of gravity, the negative pressure pump 9 is started to periodically suck the sediments, the sediments are transferred, the water source above passes through the recovery frame 14 and is transferred to the recovery groove 15 through the transfer pipe 7, and finally is pumped out by the water pump 8, so that the transfer effect of the sediments and clean water is realized.

[0048] Working principle: the segmented treatment effect of the wastewater is realized through the setting of the pretreatment tank 1, the flocculation tank 2 and the sediment tank 3, since the pretreatment tank 1, the flocculation tank 2 and the sediment tank 3 are relatively independent, the circulating water flow generated by the flocculation tank 2 tends to be stable when entering the sediment tank 3, so that the gravity sedimentation can be quickly carried out, and the sufficient mixing effect of the wastewater and the flocculant can be ensured under the action of the circulating water flow in the flocculation tank 2, so that the combination effect of the two is effectively improved, which assists the subsequent large particle sedimentation process; meanwhile, the water circulation mode of the circulating cylinder 11 can effectively drive the overall water source in the flocculation tank 2, and since the unique circulation mode, in the circulating process, part of the water flow in the flowing water body near the side of the sediment tank 3 carries the sediments into the sediment tank 3 for the last sedimentation, if a general central stirring is used, it is difficult to make the sediments continuously transfer to the sediment tank 3 in the stirring process, so that the uninterrupted mixing process effect is realized.

[0049] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0050] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0051] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products, comprising a pretreatment tank (1), a flocculation tank (2), and a sedimentation tank (3), characterized in that: The flocculation box (2) is located between the pretreatment box (1) and the sedimentation box (3) and is connected to both of them; The pretreatment tank (1) is fixedly connected to the end of the feed pipe (4), the sedimentation tank (3) is equipped with a water pump (8) and a negative pressure pump (9) for extracting sediment, and the flocculation tank (2) is provided with a circulation cylinder (11) in the middle of the inner side. The circulation cylinder (11) is arranged vertically, and a drive fan (28) is provided in the middle of the circulation cylinder (11). A drive motor (5) is installed above the flocculation box (2). A transmission rod (25) is fixedly connected to the bottom output end of the drive motor (5) above the flocculation box (2). The outer side of the transmission rod (25) is fixedly connected to the drive fan (28) near the top. A fixed seat (20) for dispensing flocculant is provided above the circulation cylinder (11). The fixed seat (20) is fixedly connected to the inner wall of the flocculation box (2). The flocculation box (2) has a circular cross-section circulation groove (19) inside. Multiple guide plates (12) are fixed to the outside of the circulation cylinder (11). The multiple guide plates (12) are arranged in a ring at equal intervals. The top of the guide plate (12) is in contact with the bottom of the circulation groove (19). The circulation cylinder (11) can rotate in the same direction as the drive fan (28). The drive fan (28) is a bidirectional fan blade design. The flocculation box (2) has a flow channel (23) at the bottom of the side near the pretreatment box (1). The flocculation box (2) has a lifting valve plate (13) at the side near the sedimentation box (3). The bottom of the lifting valve plate (13) is equipped with a hydraulic rod (22) for controlling the lifting valve plate (13) to lift.

2. The sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 1, characterized in that: A drive motor (5) is also installed above the pretreatment box (1). A stirring rod (10) is installed inside the pretreatment box (1). The drive motor (5) above the pretreatment box (1) is used to drive the stirring rod (10) to rotate.

3. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 1, characterized in that: A planetary reducer (21) is installed in the middle of the transmission rod (25). The bottom output end of the planetary reducer (21) is annular and is located at the bottom of the transmission rod (25). The top output end of the planetary reducer (21) is fixedly connected to the circulation cylinder (11) through a transmission frame (26).

4. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 3, characterized in that: The top of the circulation cylinder (11) is provided with an outwardly extending eave. Multiple support frames (18) are fixedly connected to the inner wall of the circulation cylinder (11). The support frames (18) are slidably engaged with the eaves of the circulation cylinder (11). The planetary reducer (21) is fixedly connected to the flocculation box (2) on both sides through two fixed seats (20).

5. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 1, characterized in that: The guide plate (12) is bent, and multiple guide plates (12) are arranged in a ring at equal intervals. The edge of the guide plate (12) is attached to the side wall of the circulation groove (19).

6. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 5, characterized in that: The inner wall of the circulation cylinder (11) is fixed with a plurality of receiving valves (29) that communicate with the guide plate (12). The input end of the receiving valve (29) faces upward, and a plurality of inclined downward nozzles (30) are fixed to the outer side of the guide plate (12) near the top.

7. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 6, characterized in that: The circulation cylinder (11) is fixedly connected to a second baffle plate (27), which is located above the drive fan (28). The second baffle plate (27) has a hole in the middle for the transmission rod (25) to pass through.

8. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 7, characterized in that: The bottom of the sedimentation tank (3) is fixedly connected to a suction pipe (17) that is connected to a negative pressure pump (9). Multiple absorption pipes are installed on the bottom of the outer side of the suction pipe (17). A baffle plate (16) is fixedly connected to the middle of the sedimentation tank (3). Multiple recycling frames (14) are fixedly connected above the baffle plate (16).

9. A sedimentation tank for wastewater treatment in the production process of water-based adhesives for tobacco products according to claim 8, characterized in that: The sedimentation tank (3) is fixedly connected to a transfer pipe (7) that communicates with multiple recycling boxes (14). An independent recycling tank (15) is opened on the inner side of the sedimentation tank (3) near the top. The transfer pipe (7) is connected to the recycling tank (15). The water pump (8) is connected to the recycling tank (15) through a pipe.

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