An activated coke adsorption tank for deep treatment of printing and dyeing wastewater

Abstract

The present invention discloses an activated coke adsorption tank for deep treatment of printing and dyeing wastewater, and belongs to the technical field of wastewater treatment. It includes a tank body, a support structure, a fixed seat, a movable end cover, a fixed end cover, a drain pipe, a fixed pipe, a first sealing plate and a telescopic rod. The tank body is arranged in a vertical direction, and the support structure is fixedly arranged on the outside of the vertical end of the tank body. The inside of the tank body is a hollow structure to form a treatment chamber. The vertical ends of the treatment chamber are openings. The fixed seat is fixed on one side of the tank body where the support structure is arranged and is located on the side of the treatment chamber opening. In the present invention, during the process of wastewater passing through the treatment chamber, the chemical reagents in the wastewater are adsorbed and reacted by the activated coke material to achieve the purpose of treating the wastewater. Compared with the traditional method of introducing wastewater from the top and discharging wastewater from the bottom, this method can prolong the contact time between the wastewater and the activated coke material, thereby improving the treatment effect of the wastewater.

Description

Technical Field

[0001] The invention relates to an activated coke adsorption tank for deep treatment of printing and dyeing wastewater, belonging to the technical field of wastewater treatment. Background Art

[0002] The treatment of printing and dyeing wastewater needs to undergo adsorption reaction in an activated coke adsorption tank before subsequent purification treatment can be carried out. Conventional wastewater purification often adopts a top-in-bottom-out liquid supply method, which will result in a short contact time between wastewater and activated coke, affecting the treatment effect of wastewater. The bottom-in-top-out liquid supply method will cause some wastewater to remain in the adsorption tank all the time, and this part of the wastewater cannot continue to be discharged from the pipeline. It is usually necessary to inject clean water into the adsorption tank to replace the retained wastewater, or use a large amount of clean water to pass into the adsorption tank and use a pump to take the wastewater out of the adsorption tank together with the activated coke material, so as to achieve the purpose of collecting and regenerating the activated coke in the adsorption tank. However, this will waste a lot of water resources, so there are certain problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an activated coke adsorption tank for deep treatment of printing and dyeing wastewater, which solves the problem in the prior art that the wastewater and activated coke in the adsorption tank adopt a bottom water inlet and top water outlet mode need to be replaced with a large amount of clean water before they can be completely discharged, resulting in a waste of water resources.

[0004] The technical problem to be solved by the present invention is achieved by adopting the following technical scheme: an activated coke adsorption tank for deep treatment of printing and dyeing wastewater, comprising a tank body, a supporting structure, a fixed seat, a movable end cover, a fixed end cover, a drain pipe, a fixed pipe, a first sealing plate and a telescopic rod, the tank body is arranged in a vertical direction, the supporting structure is fixedly arranged on the outside of the vertical end of the tank body, the interior of the tank body is a hollow structure to form a treatment chamber, the vertical ends of the treatment chamber are openings, the fixed seat is fixed to a side of the tank body where the supporting structure is arranged and is located on the side of the treatment chamber opening, the movable end cover is hingedly arranged with the fixed seat, the movable end cover blocks and closes the opening of the treatment chamber, the movable end cover is detachably fixedly connected to the tank body, a liquid inlet pipe is fixedly arranged on the movable end cover, one end of the liquid inlet pipe extends into the treatment chamber, the other end of the liquid inlet pipe passes through the movable end cover and extends to the outside of the treatment chamber, and the fixed end The cover is detachably fixed at an opening on one side of the processing chamber away from the movable end cover, the drain pipe is fixedly arranged on the outer curved surface of the tank body close to the fixed end cover, the drain pipe connects the processing chamber with the external environment of the tank body, the fixed pipe is fixedly arranged on the side of the fixed end cover facing the opening of the processing chamber, the fixed pipe extends vertically, the interior of the fixed pipe is hollow to form a suction chamber, the end of the suction chamber facing the movable end cover passes through the fixed pipe, the first sealing plate is slidably arranged in the suction chamber along the extension direction of the fixed pipe, the first sealing plate is sealed and fitted with the inner wall of the suction chamber, the telescopic rod is fixedly arranged on the side of the first sealing plate facing the fixed end cover, the end of the telescopic rod away from the first sealing plate passes through the fixed end cover in the vertical direction and extends to the side of the fixed end cover away from the tank body, a driving assembly is arranged in the fixed end cover, and the driving assembly is used to drive the vertical movement of the telescopic rod.

[0005] By adopting the above technical solution, the processing chamber is filled with activated coke material, and external wastewater is introduced into the processing chamber through the liquid inlet pipe and then discharged through the liquid discharge pipe. In the process of the wastewater passing through the processing chamber, the chemical reagents in the wastewater are adsorbed and reacted by the activated coke material, so as to achieve the purpose of treating the wastewater. Compared with the traditional method of introducing wastewater from the top and discharging wastewater from the bottom, this method can prolong the contact time between the wastewater and the activated coke material, thereby improving the treatment effect of the wastewater. After the wastewater is treated, for part of the waste liquid inside the fixed end cover, the telescopic rod is driven to move by the driving component, so that the telescopic rod drives the first sealing plate toward The movable end cover moves in the direction away from the movable end cover, and negative pressure is formed in the suction chamber. At this time, the water flow inside the processing chamber can enter the suction chamber under the action of negative pressure. Since the opening size of the suction chamber is smaller than the activated coke, the activated coke cannot enter the suction chamber at this time, thereby collecting the residual waste liquid. When the activated coke needs to be regenerated, the movable end cover is released from the tank body and then the movable end cover is flipped along the fixed seat. At this time, the inside of the processing chamber is connected with the outside of the tank body, and the activated coke is discharged from the processing chamber under the action of gravity. Therefore, there is no need to use a large amount of clean water to collect the activated coke, which greatly reduces the waste of water resources.

[0006] The present invention is further configured as follows: a driving assembly includes a driving motor, a driving cavity, a driven wheel and a driving wheel, the driving cavity is opened in a fixed end cover, the extension direction of the telescopic rod passes through the driving cavity, the outer side surface of the telescopic rod is a threaded structure, the driven wheel is sleeved on the telescopic rod and rotatably arranged in the driving cavity, the driven wheel is threadedly connected to the outer side surface of the telescopic rod, a driving wheel is rotatably arranged in the driving cavity, the driving wheel is meshed with the driven wheel teeth, the driving motor is fixedly arranged outside the fixed end cover, the driving motor is provided with an output end, the output end of the driving motor extends into the driving cavity and is connected to the driving wheel power.

[0007] By adopting the above technical solution, the driving motor drives the active wheel to rotate, so that the active wheel drives the driven wheel to rotate under the action of tooth meshing. Since the driven wheel cannot move vertically and can only rotate, the telescopic rod moves in the vertical direction under the action of the threaded structure, thereby achieving the purpose of driving the telescopic rod to move.

[0008] The present invention is further configured as follows: a shielding plate is fixedly provided on the part of the suction chamber where the fixed tube passes through, and a plurality of filtering holes are provided on the shielding plate.

[0009] By adopting the above technical solution, when the opening at the connection between the suction chamber and the treatment chamber is large, or the volume of the activated coke is small, by fixing a baffle plate at the connection between the suction chamber and the treatment chamber and opening a number of filter holes on the baffle plate, wastewater can enter the suction chamber while activated carbon can remain in the treatment chamber, thereby achieving the purpose of separating wastewater.

[0010] The present invention is further configured as follows: an insertion cavity is provided inside the telescopic rod along the extension direction of the telescopic rod, the insertion cavity penetrates the telescopic rod on the side facing the movable end cover, an auxiliary tube is slidably arranged in the insertion cavity, one end of the auxiliary tube facing the movable end cover penetrates the first sealing plate and the shielding plate to extend into the processing chamber and abuts against the movable end cover, the shielding plate is fixedly connected to the auxiliary tube, one end of the auxiliary tube away from the movable end cover extends to the connection between the fixed tube and the fixed end cover, the interior of the auxiliary tube is hollow, and the part of the auxiliary tube facing the movable end cover forms an intermediate cavity, and the interior of the auxiliary tube is far away An air pressure chamber is formed in the part away from the movable end cover, and the air pressure chamber passes through the auxiliary tube at one end facing the fixed end cover, the inner diameter of the middle chamber is larger than the inner diameter of the air pressure chamber, and the part of the auxiliary tube where the middle chamber is set passes through the outer side of the auxiliary tube and is provided with a plurality of connecting holes, a fixing rod is fixedly provided on the end wall of the insertion chamber away from the movable end cover, and one end of the fixing rod facing the movable end cover extends into the middle chamber through the air pressure chamber, and a second sealing plate is fixed on one end of the fixing rod located in the middle chamber, the outer diameter of the second sealing plate is the same as the inner diameter of the air pressure chamber, and the second sealing plate can abut and seal against the inner wall of the air pressure chamber.

[0011] The present invention is further configured as follows: a flexible retaining ring is fixedly arranged at the connection between the intermediate cavity and the air pressure cavity, the flexible retaining ring is sleeved on the fixed rod, and one end of the second sealing plate facing the fixed end cover is chamfered.

[0012] By adopting the above technical solution, under special working conditions, due to the limited vertical length of the fixed pipe, the wastewater near the movable end cover cannot be fully collected. At this time, the flexible baffle ring can separate the air pressure chamber from the middle chamber, and the waste liquid cannot enter the air pressure chamber. In the process of the telescopic rod moving away from the movable end cover, the wastewater located at the suction chamber passing through the fixed pipe is sucked into the suction chamber, and then as the telescopic rod continues to move, the chamfered end of the second sealing plate abuts against the flexible baffle ring. At this time, the flexible baffle ring undergoes elastic deformation, and the diameter of the part of the flexible baffle ring sleeved on the fixed rod becomes larger, and finally the second sealing plate enters the air pressure chamber through the flexible baffle ring. The flexible baffle ring is separated from the sleeve relationship with the fixed rod, and the connection between the air pressure chamber and the middle chamber is in a negative pressure state. At this time, the wastewater near the movable end cover can be sucked into the middle chamber through the connecting hole, and finally enters the air pressure chamber for storage, which further increases the collection amount of wastewater and greatly reduces the amount of wastewater contained in the activated coke. In the subsequent treatment and regeneration of the activated coke, the wastewater is prevented from flowing into the outside of the tank body, thereby avoiding environmental pollution.

[0013] The present invention is further configured as follows: an expansion membrane is fixedly arranged around the outer side surface of the fixed tube, the expansion membrane and the outer side surface of the fixed tube are surrounded to form a closed space, an air guide channel is opened at the connection between the fixed end cover and the fixed tube, one end of the air guide channel is connected with the suction chamber, a flexible inflatable membrane is fixedly arranged on the fixed end cover, the flexible inflatable membrane and the outer side surface of the fixed end cover are surrounded to form an inflatable space, the other end of the air guide channel is connected with the inflatable space, a hose is fixedly arranged on the fixed end cover, one end of the hose is connected with the inflatable space, the other end of the hose passes through the expansion membrane and extends into the closed space, the connection between the hose and the expansion membrane is sealed, and an electromagnetic valve is fixed at one end of the hose located in the inflatable space.

[0014] By adopting the above technical solution, when the telescopic rod moves in a direction away from the movable end cover, the air pressure in the suction chamber on the side of the first sealing plate facing the fixed end cover increases, so that the gas enters the flexible inflatable membrane through the air guide channel. After the air pressure in the flexible inflatable membrane increases, the flexible inflatable membrane expands. At this time, the air pressure in the inflatable space is greater than the air pressure in the closed space. When the active coke needs to be discharged, the solenoid valve is opened, and the gas in the inflatable space enters the closed space through the hose. At this time, the expansion membrane expands. In the process of gradual expansion of the expansion membrane, the expansion membrane can exert a lateral or oblique force on the nearby active coke, which can produce a pressing and separating effect on the adhered large pieces of active coke, and can produce a certain disturbance effect on the movement of the active coke, thereby promoting the discharge of the active coke.

[0015] The present invention is further configured as follows: a fixed pressure block is fixedly arranged on the inner wall of the processing chamber, a movable pressure block is fixedly arranged on the outer side of the expansion membrane, a pressure chamber is opened inside the fixed pressure block, the pressure chamber penetrates the fixed pressure block at one end facing the expansion membrane, a through channel is relatively opened along the circumferential direction of the tank body on the side of the pressure chamber away from the expansion membrane, the end of the movable pressure block away from the expansion membrane extends the part penetrated by the fixed pressure block into the pressure chamber through the pressure chamber, an elastic strip is fixed on the end of the movable pressure block extending into the pressure chamber, two elastic strips are provided, one end of the two elastic strips away from the movable pressure block extends into the processing chamber through the through channel, the part of the elastic strip located in the through channel is bent, a limiting shell is sleeved on the outside of the part of the elastic strip extending into the processing chamber, the limiting shell is fixedly connected to the fixed pressure block and the processing chamber, the interior of the limiting shell is hollow, a movable channel is opened inside the limiting shell towards the movable end cover, a scraping strip is fixed on the end of the elastic strip away from the movable pressure block, the end of the scraping strip away from the elastic strip fits the inner wall of the processing chamber and extends towards the movable end cover, an exhaust hole is opened on the side of the expansion membrane close to the fixed end cover, and the exhaust hole connects the closed space with the processing chamber.

[0016] The present invention is further configured as follows: a return spring is fixedly provided at one end of the movable pressure block extending into the pressure chamber, the return spring is located between two elastic strips, the end of the return spring away from the movable pressure block is fixedly connected to the inner wall of the pressure chamber away from the expansion membrane, and a disturbance rod is detachably fixedly provided on the part of the scraper strip extending into the processing chamber.

[0017] By adopting the above technical solution, when the solenoid valve is opened, the gas in the inflation space enters the closed space through the hose. At this time, the amount of gas entering the closed space per unit time is much greater than the amount of gas discharged from the closed space through the exhaust hole. At this time, the expansion membrane continues to expand, so that the expansion membrane produces a pressure effect on the movable pressure block. At this time, the movable pressure block moves in a direction away from the expansion membrane, and the reset spring is compressed, thereby pressing the elastic strip toward the inner wall of the processing chamber. The length of the part of the elastic strip located inside the limit shell becomes longer, and the elastic strip drives the scraper strip to slide circumferentially against the inner wall of the processing chamber. At this time, the scraper strip can scrape off foreign matter attached to the inner wall of the processing chamber, and can also drive the disturbance rod to move, and the disturbance rod can The active coke is disturbed to make it spread out and not stick together, which is beneficial to the subsequent discharge of the active coke. When the expansion membrane expands to the limit position, the solenoid valve is closed. At this time, the gas in the closed space is discharged through the exhaust hole, and the expansion membrane returns to its initial state. The movable pressure block moves away from the inner wall of the processing chamber, and under the elastic action of the reset spring, the movable pressure block is smoothly reset. The elastic strip is also reset under its own elastic action. At this time, the scraper returns to the starting position, and when the expansion membrane returns to its initial state, the solenoid valve is opened again. After the above process is circulated, the effect of the scraper bar in scraping off foreign matter on the inner wall of the processing chamber can be further improved, and the active coke in the processing chamber can be fully disturbed, which greatly improves the smoothness of the subsequent discharge of the active coke.

[0018] The beneficial effects of the present invention are:

[0019] 1. The treatment chamber is filled with activated coke material. External wastewater is introduced into the treatment chamber through the liquid inlet pipe and then discharged through the liquid discharge pipe. In the process of wastewater passing through the treatment chamber, the chemical reagents in the wastewater are adsorbed and reacted by the activated coke material to achieve the purpose of treating the wastewater. Compared with the traditional method of introducing wastewater from the top and discharging wastewater from the bottom, this method can prolong the contact time between wastewater and activated coke material, thereby improving the treatment effect of wastewater.

[0020] 2. After the wastewater treatment is completed, for part of the waste liquid inside the fixed end cover, the telescopic rod is driven to move by the driving assembly, so that the telescopic rod drives the first sealing plate to move in the direction away from the movable end cover. At this time, negative pressure is formed in the suction chamber. At this time, the water flow inside the treatment chamber can enter the suction chamber under the action of negative pressure. Since the opening size of the suction chamber is smaller than the activated coke, the activated coke cannot enter the suction chamber at this time, thereby collecting the residual waste liquid. When the activated coke needs to be regenerated, the movable end cover is released from the tank body and then the movable end cover is flipped along the fixed seat. At this time, the inside of the treatment chamber is connected with the outside of the tank body, and the activated coke is discharged from the treatment chamber under the action of gravity. Therefore, there is no need to use a large amount of clean water to collect the activated coke, which greatly reduces the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural cross-sectional view of the present invention in the vertical direction;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure when the active coke is discharged after the middle movable end cover is opened;

[0024] Figure 4 for Figure 3 The structural diagram after the disturbance rod is installed on the scraper strip;

[0025] Figure 5 It is a structural cross-sectional view of the present invention in the horizontal direction;

[0026] Figure 6 for Figure 5 A magnified view of the structure at center.

[0027] In the figure: 10, tank body; 11, supporting structure; 12, fixed seat; 13, movable end cover; 14, fixed end cover; 15, flexible inflatable membrane; 16, driving motor; 17, processing chamber; 18, drain pipe; 19, inlet pipe; 20, fixed pipe; 21, suction chamber; 22, shielding plate; 23, filter hole; 24, first sealing plate; 25, telescopic rod; 26, insertion chamber; 27, auxiliary pipe; 28, intermediate chamber; 29, air pressure chamber; 30, flexible baffle Ring; 31. Fixed rod; 32. Second sealing plate; 33. Connecting hole; 40. Expansion membrane; 41. Exhaust hole; 42. Reinforcement sheet; 43. Air guide channel; 44. Hose; 45. Solenoid valve; 46. Drive chamber; 47. Driven wheel; 48. Driving wheel; 49. Disturbance rod; 50. Fixed pressure block; 51. Movable pressure block; 52. Limiting shell; 53. Scraper strip; 54. Movable channel; 55. Pressure chamber; 56. Elastic strip; 57. Return spring. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0029] like Figure 1-2As shown, an activated coke adsorption tank for deep treatment of printing and dyeing wastewater includes a tank body 10, a support structure 11, a fixed seat 12, a movable end cover 13, a fixed end cover 14, a drain pipe 18, a fixed pipe 20, a first sealing plate 24 and a telescopic rod 25. The tank body 10 is arranged in a vertical direction, and the tank body 10 is cylindrical or funnel-shaped. When the tank body 10 is funnel-shaped, the end of the tank body 10 with a small outer diameter faces the ground, and the support structure 11 is fixedly arranged on the outside of the vertical end of the tank body 10, and the support structure 11 is fixedly connected to the ground. The interior of the tank body 10 is a hollow structure forming a processing chamber 17, and the vertical ends of the processing chamber 17 are openings. The fixed seat 12 is fixed on one side of the tank body 10 where the support structure 11 is set and is located on the side of the opening of the processing chamber 17. The movable end cover 13 is hinged to the fixed seat 12, and the movable end cover 13 blocks and closes the opening of the processing chamber 17. The movable end cover 13 is detachably fixedly connected to the tank body 10, including but not limited to using snap fixation and bolt fasteners to fix. A liquid inlet pipe 19 is fixedly set on the movable end cover 13, one end of the liquid inlet pipe 19 extends into the processing chamber 17, and the other end of the liquid inlet pipe 19 passes through the movable end cover 13 and extends to the outside of the processing chamber 17. The fixed end cover 14 is detachably fixedly set at an opening on one side of the processing chamber 17 away from the movable end cover 13, and the fixed end cover 14 is fixed to the tank body 10 by a detachable bolt fastener. The drain pipe 18 is fixedly arranged on the outer curved surface of the tank body 10 close to the fixed end cover 14, and connects the processing chamber 17 with the external environment of the tank body 10. The fixed pipe 20 is fixedly arranged on the side of the fixed end cover 14 facing the opening of the processing chamber 17. The fixed pipe 20 extends vertically, and the interior of the fixed pipe 20 is hollow to form a suction chamber 21. The suction chamber 21 passes through the fixed pipe 20 at one end facing the movable end cover 13. The suction chamber 21 fixes the part where the fixed pipe 20 passes through with a baffle plate 22, and a plurality of filter holes 23 are opened on the baffle plate 22. The first sealing plate 24 is slidably arranged in the suction chamber 21 along the extension direction of the fixed tube 20, and the first sealing plate 24 is sealed and fitted with the inner wall of the suction chamber 21. The telescopic rod 25 is fixedly arranged on the side of the first sealing plate 24 facing the fixed end cover 14, and one end of the telescopic rod 25 away from the first sealing plate 24 passes through the fixed end cover 14 in the vertical direction and extends to the side of the fixed end cover 14 away from the tank body 10. A driving assembly is arranged in the fixed end cover 14, and the driving assembly is used to drive the vertical movement of the telescopic rod 25.The driving assembly includes a driving motor 16, a driving cavity 46, a driven wheel 47 and a driving wheel 48. The driving cavity 46 is opened in the fixed end cover 14. The extension direction of the telescopic rod 25 passes through the driving cavity 46. The outer side of the telescopic rod 25 is a threaded structure. The driven wheel 47 is sleeved on the telescopic rod 25 and rotatably set in the driving cavity 46. The driven wheel 47 is threadedly connected to the outer side of the telescopic rod 25. A driving wheel 48 is rotatably set in the driving cavity 46. The driving wheel 48 is meshed with the driven wheel 47. The driving motor 16 is fixedly set outside the fixed end cover 14. The driving motor 16 is provided with an output end. The output end of the driving motor 16 extends into the driving cavity 46 and is connected to the driving wheel 48 for power.

[0030] like Figure 3-4 As shown, an insertion cavity 26 is provided inside the telescopic rod 25 along the extension direction of the telescopic rod 25, and the insertion cavity 26 penetrates the telescopic rod 25 toward one side of the movable end cover 13, and an auxiliary tube 27 is slidably arranged in the insertion cavity 26, and one end of the auxiliary tube 27 toward the movable end cover 13 penetrates the first sealing plate 24 and the shielding plate 22 to extend into the processing chamber 17 and abuts against the movable end cover 13, and the shielding plate 22 is fixedly connected to the auxiliary tube 27, and one end of the auxiliary tube 27 away from the movable end cover 13 extends to the connection between the fixed tube 20 and the fixed end cover 14, the interior of the auxiliary tube 27 is hollow, and the part of the auxiliary tube 27 facing the movable end cover 13 forms an intermediate cavity 28, and the part of the auxiliary tube 27 away from the movable end cover 13 forms an air pressure cavity 29, and the air pressure cavity 29 toward one end of the fixed end cover 14 penetrates the auxiliary tube 27 penetrates to connect the air pressure chamber 29 with the insertion chamber 26, the inner diameter of the middle chamber 28 is larger than the inner diameter of the air pressure chamber 29, the part of the auxiliary tube 27 where the middle chamber 28 is set penetrates, and a plurality of connecting holes 33 are set on the outer side of the auxiliary tube 27, a fixing rod 31 is fixedly set on the end wall of the insertion chamber 26 away from the movable end cover 13, and a plurality of through holes for vertically penetrating the telescopic rod 25 are opened laterally at the connection between the insertion chamber 26 and the fixing rod 31, and the gas in the insertion chamber 26 can be discharged through the through holes, and the end of the fixing rod 31 facing the movable end cover 13 extends to the middle chamber 28 via the air pressure chamber 29, and a second sealing plate 32 is fixed on one end of the fixing rod 31 located in the middle chamber 28, and the outer diameter of the second sealing plate 32 is the same as the inner diameter of the air pressure chamber 29, and the second sealing plate 32 can abut and seal against the inner wall of the air pressure chamber 29. A flexible baffle ring 30 is fixedly provided at the connection between the middle cavity 28 and the air pressure cavity 29 . The flexible baffle ring 30 is sleeved on the fixed rod 31 . One end of the second sealing plate 32 facing the fixed end cover 14 is chamfered.

[0031] like Figure 3-5As shown, an expansion membrane 40 is fixedly arranged around the outer side surface of the fixed tube 20, and the expansion membrane 40 and the outer side surface of the fixed tube 20 are surrounded to form a closed space. An air guide channel 43 is opened at the connection between the fixed end cover 14 and the fixed tube 20, and one end of the air guide channel 43 is connected with the suction chamber 21. A flexible inflatable membrane 15 is fixedly arranged on the fixed end cover 14, and the flexible inflatable membrane 15 and the outer side surface of the fixed end cover 14 are surrounded to form an inflatable space, and the other end of the air guide channel 43 is connected with the inflatable space. A hose 44 is fixedly arranged on the fixed end cover 14, and one end of the hose 44 is connected with the inflatable space, and the other end of the hose 44 passes through the expansion membrane 40 and extends into the closed space. The connection between the hose 44 and the expansion membrane 40 is sealed, and a solenoid valve 45 is fixed at one end of the hose 44 located in the inflatable space.

[0032] like Figure 4-6 As shown, a fixed pressure block 50 is fixedly provided on the inner wall of the processing chamber 17, a movable pressure block 51 is fixedly provided on the outer side of the expansion membrane 40, and a reinforcing sheet 42 is fixedly provided on the part of the connection between the expansion membrane 40 and the movable pressure block 51 located in the closed space. The reinforcing sheet 42 strengthens the structure of the expansion membrane 40 to prevent the expansion membrane 40 from being damaged. A pressure chamber 55 is provided inside the fixed pressure block 50, and the pressure chamber 55 penetrates the fixed pressure block 50 toward one end of the expansion membrane 40. A through channel is relatively provided on one side of the pressure chamber 55 away from the expansion membrane 40 along the circumference of the tank body 10. The end of the movable pressure block 51 away from the expansion membrane 40 extends the part penetrated by the fixed pressure block 50 into the pressure chamber 55 through the pressure chamber 55, and an elastic strip 56 is fixed on one end of the movable pressure block 51 extending into the pressure chamber 55. Two elastic strips 56 are provided, and one end of the two elastic strips 56 away from the movable pressure block 51 extends into the processing chamber 17 through the through channel. The portion of the elastic strip 56 located in the through channel is bent, and a limiting shell 52 is sleeved on the outer portion of the portion of the elastic strip 56 extending into the processing chamber 17. The limiting shell 52 is fixedly connected to the fixed pressure block 50 and the processing chamber 17. The interior of the limiting shell 52 is hollow, and a movable channel 54 is opened in the limiting shell 52 toward the movable end cover 13. A scraper strip 53 is fixed to one end of the elastic strip 56 away from the movable pressure block 51, and one end of the scraper strip 53 away from the elastic strip 56 is attached to the inner wall of the processing chamber 17 and extends toward the movable end cover 13. An exhaust hole 41 is opened on the side of the expansion membrane 40 close to the fixed end cover 14, and the exhaust hole 41 connects the enclosed space with the processing chamber 17. A return spring 57 is fixedly provided at one end of the movable pressure block 51 extending into the pressure chamber 55. The return spring 57 is located between two elastic strips 56. The end of the return spring 57 away from the movable pressure block 51 is fixedly connected to the inner wall of the pressure chamber 55 away from the expansion membrane 40. The part of the scraper strip 53 extending into the processing chamber 17 is detachably fixed with a disturbance rod 49. In special scenarios where a large amount of active coke is required to be filled in the processing chamber 17 and a high efficiency of waste liquid treatment is required, the disturbance rod 49 may be chosen not to be installed.

[0033] The processing chamber 17 is filled with activated coke material, and external wastewater is introduced into the processing chamber 17 through the liquid inlet pipe 19 and then discharged through the liquid discharge pipe 18. In the process of the wastewater passing through the processing chamber 17, the chemical reagents in the wastewater are adsorbed and reacted by the activated coke material, thereby achieving the purpose of treating the wastewater. Compared with the traditional method of introducing wastewater from above and discharging wastewater from below, this method can prolong the contact time between the wastewater and the activated coke material, thereby improving the wastewater treatment effect. After the wastewater treatment is completed, for part of the waste liquid inside the fixed end cover 14, the driving motor 16 drives the driving wheel 48 to rotate, so that the driving wheel 48 drives the driven wheel 47 to rotate under the action of tooth meshing. Since the driven wheel 47 cannot move vertically and can only rotate, the telescopic rod 25 moves in the vertical direction under the action of the threaded structure, thereby achieving the purpose of driving the telescopic rod 25 to move. The telescopic rod 25 drives the first sealing plate 24 to move in a direction away from the movable end cover 13. At this time, negative pressure is formed in the suction chamber 21. At this time, the water flow inside the processing chamber 17 can enter the suction chamber 21 under the action of negative pressure. Since the opening size of the suction chamber 21 is smaller than the active coke, the active coke cannot enter the suction chamber 21 at this time, thereby collecting the residual waste liquid. When the active coke needs to be processed and regenerated, the movable end cover 13 is released from the tank body 10, and then the movable end cover 13 is turned over along the fixing seat 12. At this time, the inside of the processing chamber 17 is connected with the outside of the tank body 10, and the active coke is discharged from the processing chamber 17 under the action of gravity. Therefore, there is no need to use a large amount of clean water to collect the active coke, which greatly reduces the waste of water resources.

[0034] When the opening at the connection between the suction chamber 21 and the treatment chamber 17 is large, or the volume of the activated carbon is small, by fixing a baffle plate 22 at the connection between the suction chamber 21 and the treatment chamber 17, and opening a plurality of filter holes 23 on the baffle plate 22, wastewater can enter the suction chamber 21 while the activated carbon can remain in the treatment chamber 17, thereby achieving the purpose of separating the wastewater.

[0035] Under special working conditions, that is, the tank body 10 is funnel-shaped, and the diameter of the fixed pipe 20 is larger than the outer diameter of the end of the tank body 10 facing the ground. Due to the limited vertical length of the fixed pipe 20, the waste liquid on the side of the processing chamber 17 close to the movable end cover 13 cannot be collected. At this time, the flexible retaining ring 30 can separate the air pressure chamber 29 from the middle chamber 28, and the waste liquid cannot enter the air pressure chamber 29. In the process of the telescopic rod 25 moving away from the movable end cover 13, the waste water located at the suction chamber 21 passing through the fixed pipe 20 is sucked into the suction chamber 21, and then as the telescopic rod 25 continues to move, the chamfered end of the second sealing plate 32 abuts against the flexible retaining ring 30. At this time, The flexible retaining ring 30 undergoes elastic deformation, and the diameter of the part of the flexible retaining ring 30 that is sleeved on the fixed rod 31 becomes larger, eventually allowing the second sealing plate 32 to enter the air pressure chamber 29 through the flexible retaining ring 30, and the flexible retaining ring 30 and the fixed rod 31 are separated from the sleeve connection. At this time, the connection between the air pressure chamber 29 and the intermediate chamber 28 is in a negative pressure state. At this time, the wastewater located near the movable end cover 13 can be sucked into the intermediate chamber 28 through the connecting hole 33, and finally enters the air pressure chamber 29 for storage, further increasing the amount of wastewater collected, greatly reducing the amount of wastewater contained in the activated coke, and preventing the wastewater from flowing into the outside of the tank body 10 during the subsequent treatment and regeneration of the activated coke, thereby avoiding environmental pollution.

[0036] When the telescopic rod 25 moves in a direction away from the movable end cover 13, the air pressure in the suction chamber 21 on the side of the first sealing plate 24 toward the fixed end cover 14 increases, so that the gas enters the flexible inflatable membrane 15 through the air guide channel 43. After the air pressure in the flexible inflatable membrane 15 increases, the flexible inflatable membrane 15 expands. At this time, the air pressure in the inflatable space is greater than the air pressure in the enclosed space. When the active coke needs to be discharged, the solenoid valve 45 is opened, and the gas in the inflatable space enters the enclosed space through the hose 44. At this time, the expansion membrane 40 expands. In the process of gradual expansion of the expansion membrane 40, the expansion membrane 40 can exert a lateral or oblique force on the nearby active coke, which can produce a pressing and separating effect on the adhered large pieces of active coke, and can produce a certain disturbance effect on the movement of the active coke, thereby promoting the discharge of the active coke.

[0037] When the solenoid valve 45 is opened, the gas in the inflation space enters the closed space through the hose 44. At this time, the amount of gas entering the closed space per unit time is much greater than the amount of gas discharged from the closed space through the exhaust hole 41. At this time, the expansion membrane 40 continues to expand, so that the expansion membrane 40 produces a pressure effect on the movable pressure block 51. At this time, the movable pressure block 51 moves in a direction away from the expansion membrane 40, and the reset spring 57 is compressed, thereby pressing the elastic strip 56 toward the inner wall of the processing chamber 17. The length of the part of the elastic strip 56 located inside the limiting shell 52 becomes longer, and the elastic strip 56 drives the scraper strip 53 to slide circumferentially against the inner wall of the processing chamber 17. At this time, the scraper strip 53 can scrape off foreign matter attached to the inner wall of the processing chamber 17, and at the same time can drive the disturbance rod 49 to move, and the disturbance rod 49 can The active coke is disturbed to make it spread out and not stick together, which is beneficial to the subsequent discharge of the active coke. When the expansion membrane 40 expands to the limit position, the solenoid valve 45 is closed. At this time, the gas in the closed space is discharged through the exhaust hole 41, and the expansion membrane 40 returns to its initial state. The movable pressure block 51 moves away from the inner wall of the processing chamber 17, and under the elastic action of the reset spring 57, the movable pressure block 51 is smoothly reset, and the elastic strip 56 is also reset under its own elastic action. At this time, the scraper strip 53 returns to the starting position, and when the expansion membrane 40 returns to its initial state, the solenoid valve 45 is opened again. After the above process is circulated, the effect of the scraper strip 53 in scraping off foreign matter on the inner wall of the processing chamber 17 can be further improved, and the active coke in the processing chamber 17 can be fully disturbed, which greatly improves the smoothness of the subsequent discharge of the active coke.

[0038] When the movable end cover 13 is opened to open the opening of the processing chamber 17 facing the ground, the active coke is discharged from the processing chamber 17 under the action of gravity. At this time, a conveyor belt can be installed between the tank body 10 and the ground to transport the active coke and improve the collection efficiency of the active coke. After the active coke is recovered and regenerated, the fixed end cover 14 is disassembled from the tank body 10, and then the movable end cover 13 is fixed to the tank body 10, and the active coke is poured into the processing chamber 17 through the opening on the side away from the movable end cover 13 to complete the loading of the active coke.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An activated coke adsorption tank for deep treatment of printing and dyeing wastewater, characterized in that: The invention comprises a tank body (10), a support structure (11), a fixing seat (12), a movable end cover (13), a fixed end cover (14), a liquid discharge pipe (18), a fixing pipe (20), a first sealing plate (24) and a telescopic rod (25); the tank body (10) is arranged in a vertical direction; the support structure (11) is fixedly arranged outside the vertical end of the tank body (10); the interior of the tank body (10) is a hollow structure forming a processing chamber (17); both vertical ends of the processing chamber (17) are open; the fixing seat (12) is fixed to a side of the tank body (10) where the support structure (11) is arranged and is located The movable end cover (13) is hingedly arranged with the fixed seat (12) on the side of the opening of the processing chamber (17), the movable end cover (13) blocks and closes the opening of the processing chamber (17), the movable end cover (13) is detachably fixedly connected to the tank body (10), a liquid inlet pipe (19) is fixedly arranged on the movable end cover (13), one end of the liquid inlet pipe (19) extends into the processing chamber (17), and the other end of the liquid inlet pipe (19) passes through the movable end cover (13) and extends to the outside of the processing chamber (17), and the fixed end cover (14) is detachably fixedly arranged in the processing chamber (17) away from the movable end cover. At an opening on one side of the end cover (13), a drain pipe (18) is fixedly arranged on an outer curved surface of the tank body (10) close to the fixed end cover (14), the drain pipe (18) connects the processing chamber (17) with the external environment of the tank body (10), a fixed pipe (20) is fixedly arranged on a side of the fixed end cover (14) facing the opening of the processing chamber (17), the fixed pipe (20) extends vertically, the interior of the fixed pipe (20) is hollow to form a suction chamber (21), the suction chamber (21) is arranged to penetrate the fixed pipe (20) at one end facing the movable end cover (13), and a first sealing plate (24) is slidably arranged in the suction chamber (21) along the extension direction of the fixed tube (20), the first sealing plate (24) is in sealing contact with the inner wall of the suction chamber (21), the telescopic rod (25) is fixedly arranged on a side of the first sealing plate (24) facing the fixed end cover (14), one end of the telescopic rod (25) away from the first sealing plate (24) passes through the fixed end cover (14) in the vertical direction and extends to a side of the fixed end cover (14) away from the tank body (10), and a driving component is arranged in the fixed end cover (14), and the driving component is used to drive the vertical movement of the telescopic rod (25); An expansion membrane (40) is fixedly arranged around the outer side surface of the fixed tube (20), and the expansion membrane (40) and the outer side surface of the fixed tube (20) are surrounded to form a closed space. An air guide channel (43) is provided at the connection between the fixed end cover (14) and the fixed tube (20), and one end of the air guide channel (43) is communicated with the suction chamber (21). A flexible inflatable membrane (15) is fixedly arranged on the fixed end cover (14), and the flexible inflatable membrane (15) and the outer side surface of the fixed end cover (14) are surrounded to form an inflatable space. The other end of the air guide channel (43) is communicated with the inflatable space. A hose (44) is fixedly arranged on the fixed end cover (14), and one end of the hose (44) is communicated with the inflatable space. The other end of the hose (44) passes through the expansion membrane (40) and extends into the closed space. The connection between the hose (44) and the expansion membrane (40) is sealed, and a solenoid valve (45) is fixed at one end of the hose (44) located in the inflatable space. A fixed pressure block (50) is fixedly arranged on the inner wall of the processing chamber (17), and a movable pressure block (51) is fixedly arranged on the outer side of the expansion membrane (40). A pressure chamber (55) is provided inside the fixed pressure block (50). The pressure chamber (55) penetrates the fixed pressure block (50) at one end facing the expansion membrane (40). A through passage is relatively provided along the circumferential direction of the tank body (10) on one side of the pressure chamber (55) away from the expansion membrane (40). The end of the movable pressure block (51) away from the expansion membrane (40) extends the portion penetrated by the fixed pressure block (50) into the pressure chamber (55) through the pressure chamber (55). An elastic strip (56) is fixed to one end of the movable pressure block (51) extending into the pressure chamber (55). Two elastic strips (56) are provided. The ends of the two elastic strips (56) away from the movable pressure block (51) are connected through the through passage. The channel extends into the processing chamber (17), the portion of the elastic strip (56) located at the channel is bent, the portion of the elastic strip (56) extending into the processing chamber (17) is sleeved with a limiting shell (52), the limiting shell (52) is fixedly connected to the fixed pressure block (50) and the processing chamber (17), the limiting shell (52) is hollow inside, a movable channel (54) is provided inside the limiting shell (52) in the direction of the movable end cover (13), a scraping strip (53) is fixed to one end of the elastic strip (56) away from the movable pressure block (51), the end of the scraping strip (53) away from the elastic strip (56) is in contact with the inner wall of the processing chamber (17) and extends in the direction of the movable end cover (13), and an exhaust hole (41) is provided on one side of the expansion membrane (40) close to the fixed end cover (14), the exhaust hole (41) connects the enclosed space with the processing chamber (17); A return spring (57) is fixedly provided at one end of the movable pressure block (51) extending into the pressure chamber (55), and the return spring (57) is located between the two elastic strips (56). An end of the return spring (57) away from the movable pressure block (51) is fixedly connected to the inner wall of the pressure chamber (55) away from the expansion membrane (40), and a disturbance rod (49) is detachably fixedly provided at the portion of the scraper strip (53) extending into the processing chamber (17).

2. The activated coke adsorption tank for deep treatment of printing and dyeing wastewater according to claim 1, characterized in that: The driving assembly comprises a driving motor (16), a driving chamber (46), a driven wheel (47) and a driving wheel (48); the driving chamber (46) is provided in the fixed end cover (14); the extension direction of the telescopic rod (25) passes through the driving chamber (46); the outer side surface of the telescopic rod (25) is a threaded structure; the driven wheel (47) is sleeved on the telescopic rod (25) and rotatably arranged in the driving chamber (46); the driven wheel (47) is threadedly connected to the outer side surface of the telescopic rod (25); a driving wheel (48) is rotatably arranged in the driving chamber (46); the driving wheel (48) and the driven wheel (47) are meshed with each other; the driving motor (16) is fixedly arranged outside the fixed end cover (14); the driving motor (16) is provided with an output end; the output end of the driving motor (16) extends into the driving chamber (46) and is power-connected to the driving wheel (48).

3. The activated coke adsorption tank for deep treatment of printing and dyeing wastewater according to claim 1, characterized in that: A baffle plate (22) is fixedly provided on the portion of the suction chamber (21) through which the fixed tube (20) passes, and a plurality of filter holes (23) are provided on the baffle plate (22).

4. The activated coke adsorption tank for deep treatment of printing and dyeing wastewater according to claim 3, characterized in that: An insertion cavity (26) is provided inside the telescopic rod (25) along the extension direction of the telescopic rod (25). The insertion cavity (26) penetrates the telescopic rod (25) on a side facing the movable end cover (13). An auxiliary tube (27) is slidably arranged inside the insertion cavity (26). One end of the auxiliary tube (27) facing the movable end cover (13) penetrates the first sealing plate (24) and the shielding plate (22) to extend into the processing chamber (17) and abuts against the movable end cover (13). The shielding plate (22) is fixedly connected to the auxiliary tube (27). One end of the auxiliary tube (27) away from the movable end cover (13) extends to the connection between the fixed tube (20) and the fixed end cover (14). The interior of the auxiliary tube (27) is hollow and the portion of the interior of the auxiliary tube (27) facing the movable end cover (13) forms an intermediate cavity (28). The interior of the auxiliary tube (27) away from the movable end cover The auxiliary tube (27) is penetrated by the auxiliary tube (27) at the end of the auxiliary tube (27) facing the fixed end cover (14). The inner diameter of the intermediate cavity (28) is larger than the inner diameter of the air pressure cavity (29). The part of the auxiliary tube (27) where the intermediate cavity (28) is provided penetrates the outer side of the auxiliary tube (27) and is provided with a plurality of connecting holes (33). A fixing rod (31) is fixedly provided on the end wall of the insertion cavity (26) away from the movable end cover (13). One end of the fixing rod (31) facing the movable end cover (13) extends into the intermediate cavity (28) through the air pressure cavity (29). A second sealing plate (32) is fixedly provided on one end of the fixing rod (31) located in the intermediate cavity (28). The outer diameter of the second sealing plate (32) is the same as the inner diameter of the air pressure cavity (29). The second sealing plate (32) can abut against the inner wall of the air pressure cavity (29) to seal.

5. The activated coke adsorption tank for deep treatment of printing and dyeing wastewater according to claim 4, characterized in that: A flexible retaining ring (30) is fixedly provided at the connection between the intermediate cavity (28) and the air pressure cavity (29), the flexible retaining ring (30) is sleeved on the fixed rod (31), and one end of the second sealing plate (32) facing the fixed end cover (14) is chamfered.

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