A treatment device for ammonia-nitrogen wastewater used in the production of hexamethylenetetramine

Abstract

The present invention discloses an ammonia-nitrogen wastewater treatment device for the production of hexamine, which relates to the technical field of wastewater treatment. It includes a motor, a mixing cylinder, a base, a control console, an overflow cylinder, a transmission component, a nitrogen blowing component, a height adjustment component, a stirring component, a cleaning component, and a sewage discharge component. The motor, the mixing cylinder, the control console, the transmission component, and the height adjustment component are all arranged on the base. The overflow cylinder and the nitrogen blowing component are arranged above the mixing cylinder. The stirring component and the cleaning component are arranged inside the mixing cylinder. The sewage discharge component is arranged on the outer surface of the mixing cylinder. The height adjustment component is used to adjust the height of the nitrogen blowing component. The height adjustment component includes a control mechanism and a lifting mechanism. The present invention can control the nitrogen blowing rate, improves the nitrogen blowing efficiency by adopting the special structure of the spiral plate, and ensures the safety of the staff when cleaning the device through the improvement of the control mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly relates to an ammonia nitrogen wastewater treatment device for the production of hexamethylenetetramine. Background Art

[0002] Hexamethylenetetramine, also known as urotropine, is used as a curing agent for resins in industry and is also a commonly used military fuel. In industry, formaldehyde aqueous solution and ammonia gas are commonly used for reaction to produce hexamethylenetetramine. Ammonia gas is highly soluble in water, and the waste liquid obtained after the reaction contains a large amount of ammonia nitrogen elements. The waste liquid needs to be treated before being discharged, and the separated ammonia gas will be put into use as a raw material again. Therefore, the separation and treatment of ammonia nitrogen wastewater are very important.

[0003] The ammonia nitrogen wastewater treatment device in the prior art performs nitrogen blowing treatment at the outlet end inside the device. When the flow rate is too large, the nitrogen blowing effect is reduced, and the use efficiency of the blowing gas is low; when manually treated, the safety performance of the device is poor, and accidents are likely to occur; when the wastewater is alkalized, calcium hydroxide is prone to caking and there is a lot of scale, so the internal cleaning is very troublesome, and the deteriorated calcium hydroxide cannot be treated in time. The water in the device needs to be completely drained to be cleaned, and the operation is cumbersome and time-consuming. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an ammonia nitrogen wastewater treatment device that can control the blowing efficiency, automatically clean the inside of the device, and prevent safety problems caused by accidental touch.

[0005] In view of the above technical problems, the technical solution adopted by the present invention is: an ammonia nitrogen wastewater treatment device for the production of hexamethylenetetramine, including a motor, a mixing cylinder, a base, a control console, an overflow cylinder, a transmission assembly, a nitrogen blowing assembly, a height adjustment assembly, a stirring assembly, a cleaning assembly, and a sewage discharge assembly. The motor, the mixing cylinder, the control console, the transmission assembly, and the height adjustment assembly are all arranged on the base. The overflow cylinder and the nitrogen blowing assembly are arranged above the mixing cylinder. The stirring assembly and the cleaning assembly are arranged inside the mixing cylinder. The sewage discharge assembly is arranged on the outer surface of the mixing cylinder. The height adjustment assembly is used to adjust the height of the nitrogen blowing assembly, and the height adjustment assembly includes a control mechanism and a lifting mechanism.

[0006] Further, the transmission assembly includes a motor, a first helical gear, a first bevel gear, a second bevel gear, a first rotating rod, a first pulley, a second pulley, a third pulley, a fourth pulley, a first belt, and a second belt. The first helical gear is fixed on the output shaft of the motor. The first helical gear meshes with the first bevel gear and the second bevel gear respectively. The third pulley is fixed on the second bevel gear. The third pulley and the fourth pulley are connected via the second belt. The fourth pulley is fixed on the second rotating shaft. The first rotating rod and the first pulley are fixed on the first bevel gear. The first pulley and the second pulley are connected via the first belt. The second pulley is fixed on the first rotating shaft.

[0007] Further, the nitrogen blowing assembly includes an air inlet pipe, a drain pipe, an exhaust pipe, a first rotating shaft, a first support plate, a first spring, a first transmission shaft, a third bevel gear, a second helical gear, a fixing plate, a sealing cover, a cylindrical barrel, a support column, a spiral plate, and a support. The first rotating shaft is rotatably installed on the first support plate. A second pulley is fixed at one end of the first rotating shaft. A first transmission shaft is inserted into the other end of the first rotating shaft, and the two are slidably connected. The first support plate is fixed on the overflow cylinder. The first spring is fixed on the first transmission shaft. One end of the first spring is fixed on the first rotating shaft. The first spring mainly plays a supporting role and a resetting role. The third bevel gear is fixedly installed at the other end of the first transmission shaft. The third bevel gear meshes with the first transmission shaft, and both are rotatably installed on the fixing plate. The rotating shaft of the second helical gear is fixed on the rotating shaft of the sealing cover. A chute is provided on the support. Two supports are symmetrically fixed on the overflow cylinder. The rotating shaft on the sealing cover is slidably installed in the chute on the support. A cylindrical barrel is rotatably installed on the sealing cover. An annular groove is provided on the sealing cover. Two support columns are symmetrically placed at the groove on the sealing cover. The support columns play a role in supporting the sealing cover. The other end of the support column is slidably installed in another chute on the support. A spiral plate is arranged inside the cylindrical barrel. The spiral plate is fixed on the sealing cover to form a spiral closed space. An exhaust pipe is rotatably installed on the other side of the sealing cover. An air inlet pipe and a drain pipe are rotatably installed at the central position.

[0008] Further, the lifting mechanism includes a second rotating shaft, a second transmission shaft, a first gear, a chain, a steering column body, a second gear, a connecting plate, a first lead screw, and a first chute plate. The second transmission shaft is rotatably installed on the second rotating shaft. The first gear is fixed on the second transmission shaft. The first gear meshes with the chain. The chain is wound around the steering column body. Four steering column bodies are provided, which are respectively fixed at the four top corners of the overflow cylinder. The first lead screw is fixed on the second gear. The first lead screw is rotatably installed on the first chute plate. The first lead screw is threadedly connected with the connecting plate. The connecting plate is slidably connected on the first chute plate. A set of the second gear, the connecting plate, the first lead screw, and the first chute plate is also provided on the other side of the sealing cover.

[0009] Furthermore, the control mechanism includes bevel gear four, bevel gear three, bevel gear five, a lever, a second spring, a first meshing block, a second meshing block, and a second support plate. Bevel gear four, bevel gear three, and bevel gear five are rotatably mounted on the second support plate, respectively. The second rotating shaft is rotatably mounted on bevel gear four, and the second transmission shaft is rotatably mounted on bevel gear five. The bevel gear four meshes with bevel gear three, and bevel gear three meshes with bevel gear five. The lever is located in the middle of bevel gear four and bevel gear five. A first slider is rotatably mounted on the lever, and the first slider is slidably mounted on the second transmission shaft. One end of the second spring is fixed on the first slider, and the other end of the second spring is fixed on the first meshing block. The first meshing block is slidably mounted on the second transmission shaft. Second meshing blocks are fixed on both bevel gear four and bevel gear five, and the first meshing block and the second meshing block can mesh in a single direction.

[0010] Furthermore, the stirring assembly includes rotating rod 2, stirring plate 1, stirring plate 2, and an isolation plate. The isolation plate is fixed inside the mixing barrel to divide the barrel into two parts, an upper and a lower part. One end of the rotating rod 2 is fixed on bevel gear 2, and the other end of the rotating rod 2 is fixed with stirring plate 1. The stirring plate 2 is indirectly fixed to bevel gear 1 through the rotating rod 1, and a drop hole is provided on the isolation plate.

[0011] Furthermore, the cleaning assembly includes a sleeve, a ring gear, a friction block, a second slide plate, a third slide plate, a third gear, a toggle rod, and a ratchet. The ring gear is fixed on the first stirring plate, the ratchet is fixed on the second rotating rod, the second slide plate is fixed on the sleeve, a friction block is slidably installed inside the second slide plate, a third slide plate is fixed at the end of the friction block, the third slide plate is slidably installed on the second slide plate, the third gear is rotatably installed on the second slide plate, the third gear is meshed with the ring gear, and a cylinder is provided on the third gear, which is slidably installed on the third slide plate.

[0012] Furthermore, the sewage discharge assembly includes a vent valve, a sewage pipe, and an opening and closing mechanism. The vent valve is arranged on the outer surface of the mixing drum and is located below the stirring plate. The sewage pipe is arranged at the drainage outlet on the bottom surface of the mixing drum; further, the opening and closing mechanism includes a rotating wheel, a fourth gear, a second slider, a second screw rod, a limit block, a baffle, a pumping plate, and a groove. The rotating wheel is fixedly mounted on the outer shell on the sleeve, the ring gear on the rotating wheel is meshed with the fourth gear, the second screw rod is fixed on the fourth gear, the second screw rod is threadedly connected to the second slider, the limit block is fixedly mounted on the stirring plate, and a plurality of them are provided. The second screw rod is rotatably mounted on the limit block at the same time. The baffle block is fixed on the stirring plate, a pumping plate is inserted in the baffle block, and the pumping plate is fixed on the fourth gear. A groove is provided on the baffle block. The fourth gear, baffle block, and pumping plate are evenly distributed on the second screw rod.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: 1) By providing an air inlet pipe, a drain pipe, an exhaust pipe, a first rotating shaft, a first support plate, a first spring, a first transmission shaft, a bevel gear three, a helical gear two, a fixing plate, a sealing cover, a cylindrical barrel, a support column and a spiral plate, with the air inlet pipe and the drain pipe on the same side, the air can first contact the discharged water, improving the nitrogen blowing quality of the water. The air sweeps out from the center of the sealing cover, causing the waste liquid to tumble between the spiral plate and the cylindrical barrel, thus enhancing the nitrogen blowing efficiency.

[0014] 2) By providing a height adjustment component, the depth of the nitrogen blowing component inserted into the wastewater can be changed, thereby artificially controlling the nitrogen blowing speed. Moreover, due to the special nature of the control mechanism in the height adjustment component, the device will not cause safety problems due to misoperation by employees during the cleaning process, ensuring the safety of employees.

[0015] 3) By connecting the cleaning component and the sewage discharge component with a ratchet, the difficulty of manual cleaning can be reduced. During the reverse rotation of the motor, the wastewater remaining in the spiral plate of the nitrogen blowing component can be discharged from the nitrogen blowing component, and the internal mechanism can be cleaned with the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an ammonia nitrogen wastewater treatment device for the production of hexamine according to the present invention.

[0017] Figure 2 is Figure 1 Schematic diagram of the second perspective structure.

[0018] Figure 3 It is a schematic diagram of the transmission component structure.

[0019] Figure 4 It is a schematic diagram of the nitrogen blowing component structure.

[0020] Figure 5 It is a schematic diagram of the installation structure of the cylindrical barrel.

[0021] Figure 6 is Figure 5 Schematic diagram of the second perspective structure.

[0022] Figure 7 is Figure 6 Schematic diagram of the structure with the cylindrical barrel removed.

[0023] Figure 8 is Figure 7 Cross-sectional view of...

[0024] Figure 9 It is a schematic diagram of the installation of the support.

[0025] Figure 10 It is a schematic diagram of the height adjustment component structure.

[0026] Figure 11 is Figure 10 a partial schematic diagram in

[0027] Figure 12 a schematic diagram of the stirring component structure.

[0028] Figure 13 a schematic diagram of the cleaning component structure.

[0029] Figure 14 is Figure 13 a schematic diagram of the installation of local parts.

[0030] Figure 15 a schematic diagram of the opening and closing mechanism structure in the sewage discharge component.

[0031] Figure 16 is Figure 15 a schematic diagram of the local part structure in

[0032] Figure 17 an attached drawing of the installation schematic diagram of the ventilation valve and the sewage discharge pipe.

[0033] Figure numbers: 1-motor; 2-mixing cylinder; 3-base; 4-leg; 5-intake pipe; 6-drain pipe; 7-control console; 8-overflow cylinder; 9-exhaust pipe; 101-helical gear 1; 102-bevel gear 1; 103-bevel gear 2; 104-rotating rod 1; 105-first pulley; 106-second pulley; 107-third pulley; 108-fourth pulley; 109-belt 1; 110-belt 2; 201-first pulley shaft; 202-first support plate; 203-first spring; 204-first transmission shaft; 205-bevel gear three; 206-helical gear two; 207-fixing plate; 208-sealing cover; 209-cylindrical tube; 210-support column; 211-spiral plate; 212-support; 2001-water inlet; 2002-air outlet; 301-second rotating shaft; 302-second transmission shaft; 303-first gear; 304-chain; 305-steering Column; 306-second gear; 307-connecting plate; 308-first screw rod; 309-first slide plate; 401-electric cylinder; 402-bevel gear four; 403-bevel gear three; 404-bevel gear five; 405-shift rod; 406-second spring; 407-first meshing block; 408-second meshing block; 409-second support plate; 410-first slider; 501-rotating rod two; 502-stirring plate one; 503-stirring plate two; 504-isolating plate; 601-sleeve; 602-gear ring; 603-friction block; 604-second slide plate; 605-third slide plate; 606-third gear; 607-sliding rod; 608-ratchet; 701-rotating wheel; 702-fourth gear; 703-second slider; 704-second screw rod; 705-limiting block; 706-blocking block; 707-drawing plate; 708-groove; 801-vent valve; 802-drain pipe. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0036] like Figure 1 - Figure 2As shown in the figure, an ammonia-nitrogen wastewater treatment device for the production of hexamine includes a motor 1, a mixing cylinder 2, a base 3, a control console 7, an overflow cylinder 8, a transmission component, a nitrogen blowing component, a height adjustment component, a stirring component, a cleaning component, and a sewage discharge component. The motor 1, the mixing cylinder 2, the control console 7, the transmission component, and the height adjustment component are all arranged on the base 3. The overflow cylinder 8 and the nitrogen blowing component are arranged above the mixing cylinder 2. The stirring component and the cleaning component are arranged inside the mixing cylinder 2. The sewage discharge component is arranged on the outer surface of the mixing cylinder 2. The height adjustment component is used to adjust the height of the nitrogen blowing component, and the height adjustment component includes a control mechanism and a lifting mechanism.

[0037] As Figure 3 shown in the figure, the transmission component includes a motor 1, a first helical gear 101, a first bevel gear 102, a second bevel gear 103, a first rotating rod 104, a first pulley 105, a second pulley 106, a third pulley 107, a fourth pulley 108, a first belt 109, and a second belt 110. A first helical gear 101 is fixed on the output shaft of the motor 1. The first helical gear 101 meshes with the first bevel gear 102 and the second bevel gear 103 respectively. A third pulley 107 is fixed on the second bevel gear 103. The third pulley 107 and the fourth pulley 108 are connected via the second belt 110. The fourth pulley 108 is fixed on a second rotating shaft 301. A first rotating rod 104 and a first pulley 105 are fixed on the first bevel gear 102. The first pulley 105 and the second pulley 106 are connected via the first belt 109. The second pulley 106 is fixed on a first rotating shaft 201.

[0038] As Figure 4 - Figure 9As shown in the figure, the nitrogen blowing assembly includes an air inlet pipe 5, a drain pipe 6, an exhaust pipe 9, a first rotating shaft 201, a first support plate 202, a first spring 203, a first transmission shaft 204, a third bevel gear 205, a second helical gear 206, a fixing plate 207, a sealing cover 208, a cylindrical barrel 209, a support column 210, a spiral plate 211, and a support 212. The first rotating shaft 201 is rotatably installed on the first support plate 202. One end of the first rotating shaft 201 is fixed with a second pulley 106. The other end of the first rotating shaft 201 is inserted with a first transmission shaft 204, and the two are slidably connected. The first support plate 202 is fixed on the overflow cylinder 8. A first spring 203 is fixed on the first transmission shaft 204. One end of the first spring 203 is fixed on the first rotating shaft 201. The first spring 203 mainly plays a supporting role and a resetting role. The other end of the first transmission shaft 204 is fixedly installed with a third bevel gear 205. The third bevel gear 205 meshes with the first transmission shaft 204, and both are rotatably installed on the fixing plate 207. The rotating shaft of the second helical gear 206 is fixed on the rotating shaft of the sealing cover 208. There is a chute on the support 212. Two supports 212 are symmetrically fixed on the overflow cylinder 8. The rotating shaft on the sealing cover 208 is slidably installed on the chute on the support 212. A cylindrical barrel 209 is rotatably installed on the sealing cover 208. There is an annular groove on the sealing cover 208. Two support columns 210 are symmetrically placed at the groove on the sealing cover 208. The support columns 210 mainly play a supporting role for the sealing cover 208. The other end of the support column 210 is slidably installed on another chute on the support 212. A spiral plate 211 is arranged inside the cylindrical barrel 209. The spiral plate 211 is fixed on the sealing cover 208 to form a spiral closing device. An exhaust pipe 9 is rotatably installed on the other side of the sealing cover 208. An air inlet pipe 5 and a drain pipe 6 are rotatably installed at the central position.

[0039] As Figure 10 shown in the figure, the lifting mechanism includes a second rotating shaft 301, a second transmission shaft 302, a first gear 303, a chain 304, a steering column body 305, a second gear 306, a connecting plate 307, a first lead screw 308, and a first chute plate 309. The second transmission shaft 302 is rotatably installed on the second rotating shaft 301. A first gear 303 is fixed on the second transmission shaft 302. The first gear 303 meshes with the chain 304. The chain 304 is wound around the steering column body 305. There are four steering column bodies 305, which are respectively fixed at the four top corners of the overflow cylinder 8. A first lead screw 308 is fixed on the second gear 306. The first lead screw 308 is rotatably installed on the first chute plate 309. The first lead screw 308 is threadedly connected to the connecting plate 307. The connecting plate 307 is slidably connected on the first chute plate 309. A set of the second gear 306, the connecting plate 307, the first lead screw 308, and the first chute plate 309 is also arranged on the other side of the sealing cover 208.

[0040] As Figure 11As shown, the control mechanism includes a bevel gear 402, a bevel gear 3 403, a bevel gear 5 404, a lever 405, a second spring 406, a first meshing block 407, a second meshing block 408, a second support plate 409, and a first slider 410. The bevel gear 402, the bevel gear 3 403, and the bevel gear 5 404 are rotatably mounted on the second support plate 409, the second rotating shaft 301 is rotatably mounted on the bevel gear 402, the second transmission shaft 302 is rotatably mounted on the bevel gear 5 404, the bevel gear 402 is meshed with the bevel gear 3 403, the bevel gear 3 403 and the bevel gear 5 404 are meshed, and the lever 405 is located in the middle of the bevel gear four 402 and the bevel gear five 404. The first slider 410 is rotatably installed on the lever 405, and the first slider 410 is slidably installed on the second transmission shaft 302. One end of the second spring 406 is fixed on the first slider 410, and the other end of the second spring 406 is fixed on the first meshing block 407. The first meshing block 407 is slidably installed on the second transmission shaft 302. The second meshing block 408 is fixed on both the bevel gear four 402 and the bevel gear five 404, and the first meshing block 407 and the second meshing block 408 can mesh in a single direction.

[0041] like Figure 12 As shown, the stirring assembly includes a rotating rod 2 501, a stirring plate 1 502, a stirring plate 2 503, and an isolation plate 504. The isolation plate 504 is fixed inside the mixing barrel 2 to divide the barrel into two parts, an upper part and an lower part. One end of the rotating rod 2 501 is fixed on the bevel gear 2 103, and the stirring plate 1 502 is fixed on the other end of the rotating rod 2 501. The stirring plate 2 503 is indirectly fixed to the bevel gear 102 through the rotating rod 104, and a drop hole is provided on the isolation plate 504.

[0042] like Figure 13 - Figure 14 As shown, the cleaning assembly includes a sleeve 601, a ring gear 602, a friction block 603, a second slide plate 604, a third slide plate 605, a third gear 606, a toggle rod 607, and a ratchet 608. The ring gear 602 is fixed on the stirring plate 1 502, the ratchet 608 is fixed on the rotating rod 2 501, the second slide plate 604 is fixed on the sleeve 601, the friction block 603 is slidably installed inside the second slide plate 604, the third slide plate 605 is fixed at the end of the friction block 603, the third slide plate 605 is slidably installed on the second slide plate 604, the third gear 606 is rotatably installed on the second slide plate 604, the third gear 606 is meshed with the ring gear 602, and a cylinder is arranged on the third gear 606, and the cylinder is slidably installed on the third slide plate 605.

[0043] like Figure 15 - Figure 17As shown in the figure, the sewage discharge assembly includes a ventilation valve 801, a sewage discharge pipe 802, and an opening and closing mechanism. The ventilation valve 801 is arranged on the outer surface of the mixing cylinder 2, below the first stirring plate 502. The sewage discharge pipe 802 is arranged at the bottom drainage port of the mixing cylinder 2. The opening and closing mechanism includes a rotating wheel 701, a fourth gear 702, a second slider 703, a second lead screw 704, a limiting block 705, a flow blocking block 706, a draw plate 707, and a groove 708. The rotating wheel 701 is fixedly installed on the outer shell of the sleeve 601. The toothed ring on the rotating wheel 701 meshes with the fourth gear 702. The second lead screw 704 is fixed on the fourth gear 702. The second lead screw 704 is threadedly connected to the second slider 703. The limiting block 705 is fixedly installed on the first stirring plate 502 and there are multiple of them. The second lead screw 704 is rotatably installed on the limiting block 705 at the same time. The flow blocking block 706 is fixed on the first stirring plate 502. The draw plate 707 is inserted into the flow blocking block 706. The draw plate 707 is fixed on the fourth gear 702. The groove 708 is opened on the flow blocking block 706. The fourth gear 702, the flow blocking block 706, and the draw plate 707 are evenly distributed in multiple numbers on the second lead screw 704.

[0044] The working principle of the present invention is as follows: 1) During the nitrogen blowing operation, the wastewater flows into the mixing cylinder 2 from the drain pipe 6. Calcium hydroxide is put above the partition plate 504 in the mixing cylinder 2. The motor 1 is started to rotate forward to drive the first helical gear 101 to rotate. The first helical gear 101 drives the first bevel gear 102 and the second bevel gear 103 to rotate. The first bevel gear 102 drives the first rotating rod 104 to rotate. The first rotating rod 104 drives the upper second stirring plate 503 to rotate. The second bevel gear 103 drives the second rotating rod 501 to rotate. The second rotating rod 501 drives the upper first stirring plate 502 to rotate. Because the first bevel gear 102 and the second bevel gear 103 rotate in opposite directions, the first stirring plate 502 and the second stirring plate 503 rotate in opposite directions, thereby stirring the internal waste liquid and accelerating the dissolution of calcium hydroxide. This stirring method reduces the swirling state of the waste liquid in the mixing cylinder 2.

[0045] A first pulley 105 is fixed on the first rotating rod 104. Thus, through the transmission of the first pulley 105 by the first belt 109, the second pulley 106 rotates. The second pulley 106 drives the first rotating shaft 201 to rotate on the first support plate 202. The first rotating shaft 201 drives the third bevel gear 205 on the first transmission shaft 204 to rotate. The third bevel gear 205 drives the second helical gear 206 to rotate, and at the same time, the sealing cover 208 fixed on the second helical gear 206 rotates. The sealing cover 208 drives the spiral plate 211 fixed inside the sealing cover 208 to rotate on the cylindrical barrel 209. The cylindrical barrel 209 is rotatably installed on the sealing cover 208. A connecting plate 307 is fixed on the cylindrical barrel 209. The connecting plate 307 is slidably installed on the first chute plate 309. Therefore, the cylindrical barrel 209 remains stationary. When the spiral plate 211 rotates inside the cylindrical barrel 209, it can transport the wastewater upward. This section of wastewater is a small amount of wastewater that enters from the water inlet 2001 provided at the bottom of the cylindrical barrel 209. At this time, gas is introduced from the inlet pipe 5 for nitrogen blowing. The intersection of the fluids causes the wastewater to tumble inside the spiral plate 211, which can improve the nitrogen blowing efficiency. Finally, the waste gas enters the gas absorption device through the air outlet 2002 provided on the sealing cover 208. The water after nitrogen blowing will re-enter the chemical process for use from the opening of the drain pipe 6.

[0046] The bevel gear two 103 drives the third pulley 107 to rotate. The third pulley 107 drives the fourth pulley 108 to rotate through the second belt 110. The second rotating shaft 301 fixed on the fourth pulley 108 also rotates continuously. The second rotating shaft 301 drives the bevel gear four 402 to rotate. The bevel gear four 402 drives the helical gear three 403 to rotate. The helical gear three 403 drives the bevel gear five 404 to rotate. Through the control console 7, the electric cylinder is started, so that the lever 405 drives the first slider 410 to move upward on the second transmission shaft 302. The first slider 410 drives the first engaging block 407 on the second spring 406 to slide on the second transmission shaft 302 until the first engaging block 407 meshes with the second engaging block 408. At this time, the second engaging block 408 in the bevel gear five 404 drives the first engaging block 407 to rotate. The first engaging block 407 drives the second transmission shaft 302 to rotate. Conversely, by driving the electric cylinder, the lever 405 drives the first slider 410 to descend. The first slider 410 causes the second spring 406 to descend, and finally the second transmission shaft 302 can be reversed. The second transmission shaft 302 drives the first gear 303 to rotate. The first gear 303 drives the second gear 306 to rotate through the chain 304. The second gear 306 drives the first lead screw 308 to rotate. Under the action of the thread, the connecting plate 307 slides on the first chute plate 309. The connecting plate 307 controls the sealing cover 208 and the parts inside the sealing cover 208 to move up and down. The first transmission shaft 204 can slide on the first rotating shaft 201 without being affected. The corresponding support column 210 slides on the chute of the support 212, and the rotation of the sealing cover 208 will not be affected. Through the mechanism, the sealing cover 208 can extend under the overflow cylinder 8 to change the amount of waste water entering the sealing cover 208 and change the working rate of the device.

[0047] 2) During the cleaning operation, it is necessary to cooperate with manual work. Control the control console 7 to reverse the motor 1. At this time, the rotation directions of the first rotating shaft 201 and the second rotating shaft 301 are changed, forcing the sealing cover 208 to rotate in the reverse direction, and the waste water in the sealing cover 208 can flow back into the overflow cylinder 8. In the control mechanism dominated by the second rotating shaft 301, because the first engaging block 407 and the second engaging block 408 are helical gear fits, the power will not be transmitted to the second transmission shaft 302 in case of accidental contact operation, ensuring the safety of the staff.

[0048] The bevel gear two 103 rotates in reverse, driving the rotating rod two 501 to rotate. The rotating rod two 501 drives the ratchet wheel 608 to rotate. The ratchet wheel 608 causes the sleeve 601 to rotate through the pawl. The sleeve 601 drives the third gear 606 to rotate on the internal teeth of the gear ring 602 while rotating itself. The cylinder on the third gear 606 slides on the third chute plate 605, causing the third chute plate 605 to reciprocate on the second chute plate 604. Consequently, the friction block 603 fixed on the third chute plate 605 also reciprocates on the second chute plate 604. The friction block 603 contacts the surface of the isolation plate 504, so the scaling substances on the surface of the isolation plate 504 can be removed. Further, one side of the second chute plate 604 also pushes the deteriorated calcium hydroxide, causing the calcium hydroxide to fall from the opening on the isolation plate 504 to the next layer. Consequently, the toggle rod 607 is fixed on the sleeve 601. The rotation of the toggle rod 607 evenly distributes the solids in the lower layer, preventing the opening on the isolation plate 504 from being blocked. The sleeve 601 drives the rotating wheel 701 to rotate. The rotating wheel 701 is provided with teeth meshing with the fourth gear 702 on the upper and lower layers. The rotating wheel 701 causes the fourth gear 702 to rotate. The fourth gear 702 drives the second lead screw 704 to rotate on the limit block 705. The second slider 703 is threadedly connected to the second lead screw 704. The rotation of the second lead screw 704 can cause the second slider 703 to move on the groove 708, thereby pulling out the extraction plate 707 from inside the flow-blocking block 706. At this time, the opening on the isolation plate 504 can be closed. When the rotating wheel 701 rotates, it causes the fourth gear 702 to first engage with the upper teeth of the rotating wheel 701, and then after a period of time, engage with the lower teeth. This makes the fourth gear 702 stay for a period of time after rotating forward and then reverse. During the intermediate retention period, the extraction plate 707 slides out of the flow-blocking block 706, that is, in the closed state of the opening. After reversing later, the extraction plate 707 slides into the flow-blocking block 706 and the opening is opened.

[0049] When the cleaning is completed, open the air vent valve 801 and externally connect flushing water to the air vent valve 801. Connect a water pump to the port of the sewage pipe 802 and turn it on. External air enters from the air vent valve 801, and the pump body can pump out the internal impurities and flushing water. The above is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention.

Claims

1. An ammonia-nitrogen wastewater treatment device for the production of hexamine, comprising a mixing cylinder (2), a base (3), legs (4), a control console (7), an overflow cylinder (8), a transmission assembly, a nitrogen blowing assembly, a height adjustment assembly, a stirring assembly, a cleaning assembly, and a sewage discharge assembly. It is characterized in that: The legs (4), the control console (7), the transmission assembly, and the height adjustment assembly are all arranged on the base (3). The mixing cylinder (2) is fixed on the legs (4). The overflow cylinder (8) and the nitrogen blowing assembly are arranged above the mixing cylinder (2). The stirring assembly and the cleaning assembly are arranged inside the mixing cylinder (2). The sewage discharge assembly is arranged on the outer surface of the mixing cylinder (2). The height adjustment assembly is used to adjust the height of the nitrogen blowing assembly. The height adjustment assembly includes a control mechanism and a lifting mechanism. The nitrogen blowing assembly described above includes an air inlet pipe (5), a drain pipe (6), an exhaust pipe (9), a first rotating shaft (201), a first support plate (202), a first spring (203), a first transmission shaft (204), a third bevel gear (205), a second helical gear (206), a fixing plate (207), a sealing cover (208), a cylindrical barrel (209), a support column (210), a spiral plate (211), and a support (212). The first rotating shaft (201) is rotatably installed on the first support plate (202). A second pulley (106) is fixed at one end of the first rotating shaft (201). A first transmission shaft (204) is inserted into the other end of the first rotating shaft (201), and the two are slidably connected. The first support plate (202) is fixed on the overflow cylinder (8). A first spring (203) is fixed on the first transmission shaft (204). One end of the first spring (203) is fixed on the first rotating shaft (201). The first spring (203) plays a supporting and resetting role. A third bevel gear (205) is fixedly installed at the other end of the first transmission shaft (204). The third bevel gear (205) meshes with the first transmission shaft (204), and both are rotatably installed on the fixing plate (207). The rotating shaft of the second helical gear (206) is fixed on the rotating shaft of the sealing cover (208). A chute is provided on the support (212). Two supports (212) are symmetrically fixed on the overflow cylinder (8). The rotating shaft on the sealing cover (208) is slidably installed on the chute on the support (212). A cylindrical barrel (209) is rotatably installed on the sealing cover (208). An annular groove is provided on the sealing cover (208). Two support columns (210) are symmetrically placed at the groove on the sealing cover (208). The support columns (210) play a role in supporting the sealing cover (208). The other ends of the support columns (210) are slidably installed on another chute on the support (212). A spiral plate (211) is arranged inside the cylindrical barrel (209). The spiral plate (211) is fixed on the sealing cover (208) to form a spiral closed space. An exhaust pipe (9) is rotatably installed on the other side of the sealing cover (208). An air inlet pipe (5) and a drain pipe (6) are rotatably installed at the central position; the cylindrical barrel (209) remains stationary. When the spiral plate (211) rotates inside the cylindrical barrel (209), it can transport the wastewater upward. This section of wastewater is a small amount of wastewater that enters from the water inlet (2001) provided at the bottom of the cylindrical barrel (209).

2. The ammonia nitrogen wastewater treatment device for the production of hexamine according to claim 1, characterized in that: The described transmission assembly includes a first helical gear (101), a first bevel gear (102), a second bevel gear (103), a first rotating rod (104), a first pulley (105), a second pulley (106), a third pulley (107), a fourth pulley (108), a first belt (109), and a second belt (110). The first helical gear (101) meshes with the first bevel gear (102) and the second bevel gear (103) respectively. A third pulley (107) is fixed on the second bevel gear (103). The third pulley (107) and the fourth pulley (108) are connected via the second belt (110). The fourth pulley (108) is fixed on the second rotating shaft (301). A first rotating rod (104) and a first pulley (105) are fixed on the first bevel gear (102). The first pulley (105) and the second pulley (106) are connected via the first belt (109). The second pulley (106) is fixed on the first rotating shaft (201).

3. The ammonia nitrogen wastewater treatment device for hexamine production according to claim 1, characterized in that: The described lifting mechanism includes a second rotating shaft (301), a second transmission shaft (302), a first gear (303), a chain (304), a steering column (305), a second gear (306), a connecting plate (307), a first lead screw (308), and a first sliding groove plate (309). The second transmission shaft (302) is rotatably installed on the second rotating shaft (301). A first gear (303) is fixed on the second transmission shaft (302). The first gear (303) meshes with the chain (304). The chain (304) is wound around the steering column (305). Four steering columns (305) are provided and are respectively fixed on the four top corners of the overflow cylinder (8). A first lead screw (308) is fixed on the second gear (306). The first lead screw (308) is rotatably installed on the first sliding groove plate (309). The first lead screw (308) is threadedly connected to the connecting plate (307). The connecting plate (307) is slidably connected on the first sliding groove plate (309). A set of the second gear (306), the connecting plate (307), the first lead screw (308), and the first sliding groove plate (309) is also provided on the other side of the sealing cover (208).

4. The ammonia nitrogen wastewater treatment device for hexamine production according to claim 1, characterized in that: The described control mechanism includes bevel gear four (402), helical gear three (403), bevel gear five (404), a lever (405), a second spring (406), a first engaging block (407), a second engaging block (408), a second support plate (409), and a first slider (410). The second support plate (409) is respectively rotatably installed with bevel gear four (402), helical gear three (403), and bevel gear five (404). The second rotating shaft (301) is rotatably installed on bevel gear four (402), and the second transmission shaft (302) is rotatably installed on bevel gear five (404). The bevel gear four (402) meshes with the helical gear three (403), and the helical gear three (403) meshes with the bevel gear five (404). The lever (405) is located at the middle position between the bevel gear four (402) and the bevel gear five (404). The first slider (410) is rotatably installed on the lever (405), and the first slider (410) is slidably installed on the second transmission shaft (302). One end of the second spring (406) is fixed on the first slider (410), and the other end of the second spring (406) is fixed on the first engaging block (407). The first engaging block (407) is slidably installed on the second transmission shaft (302). Second engaging blocks (408) are fixed on both the bevel gear four (402) and the bevel gear five (404). The first engaging block (407) and the second engaging blocks (408) engage in a single direction.

5. The ammonia nitrogen wastewater treatment device for hexamine production according to claim 1, characterized in that: The described stirring assembly includes a second rotating rod (501), a first stirring plate (502), a second stirring plate (503), and a partition plate (504). The partition plate (504) is fixed inside the mixing cylinder (2), dividing the inside of the cylinder into upper and lower parts. One end of the second rotating rod (501) is fixed on the bevel gear two (103), and a first stirring plate (502) is fixed on the other end of the second rotating rod (501). The second stirring plate (503) is indirectly fixed on the bevel gear one (102) through the first rotating rod (104). The partition plate (504) is provided with a falling hole.

6. The ammonia nitrogen wastewater treatment device for hexamine production according to claim 1, characterized in that: The described cleaning component includes a sleeve (601), a gear ring (602), a friction second chute plate (604), a third chute plate (605), a third gear (606), a toggle rod (607), and a ratchet (608). The gear ring (602) is fixed on the first stirring plate (502), and the ratchet (608) is fixed on the second rotating rod (501). A second chute plate (604) is fixed on the sleeve (601). A friction block (603) is slidably installed inside the second chute plate (604). The end of the friction block (603) is fixed with a third chute plate (605). The third chute plate (605) is slidably installed on the second chute plate (604). The third gear (606) is rotatably installed on the second chute plate (604). The third gear (606) meshes with the gear ring (602). A cylinder is provided on the third gear (606), and the cylinder is slidably installed on the third chute plate (605).

7. The ammonia-nitrogen wastewater treatment device for the production of hexamine according to claim 1, characterized in that: The described sewage discharge component includes a ventilation valve (801), a sewage discharge pipe (802), and an opening and closing mechanism. The ventilation valve (801) is arranged on the outer surface of the mixing cylinder (2), below the first stirring plate (502), and the sewage discharge pipe (802) is arranged at the bottom drainage port of the mixing cylinder (2).

8. The ammonia-nitrogen wastewater treatment device for the production of hexamine according to claim 7, characterized in that: The described opening and closing mechanism includes a rotating wheel (701), a fourth gear (702), a second slider (703), a second lead screw (704), a limit block (705), a flow blocking block (706), a draw plate (707), and a groove (708). The rotating wheel (701) is fixedly installed on the outer shell of the sleeve (601). The gear ring on the rotating wheel (701) meshes with the fourth gear (702). The second lead screw (704) is fixed on the fourth gear (702). The second lead screw (704) is threadedly connected to the second slider (703). The limit blocks (705) are fixedly installed on the first stirring plate (502) and there are multiple of them. The second lead screw (704) is rotatably installed on the limit blocks (705) at the same time. The flow blocking block (706) is fixed on the first stirring plate (502). The draw plate (707) is inserted into the flow blocking block (706). The draw plate (707) is fixed on the fourth gear (702). Grooves (708) are opened on the flow blocking block (706). The fourth gear (702), the flow blocking block (706), and the draw plate (707) are evenly distributed in multiple numbers on the second lead screw (704).

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