High-salinity wastewater low-temperature crystallization melting desalination device and method

Abstract

The application relates to the technical field of wastewater treatment, in particular to a high-salt wastewater low-temperature crystallization melting desalination device and method, which comprises a crystallization melting desalination device, a ton barrel and a liquid pumping machine arranged on the crystallization melting desalination device, the liquid pumping machine is slidably connected to the side wall of the crystallization melting desalination device, a bottom frame is arranged beside the crystallization melting desalination device, a placing rack for placing the ton barrel is slidably connected to the bottom frame, two placing grooves matched with the ton barrel are arranged on the placing rack, a fixed pipe is fixedly connected to the liquid inlet end of the liquid pumping machine, a side pipe is fixedly connected to the side wall of the fixed pipe, a conical sealing ring is arranged on the side wall of the fixed pipe, top grooves are arranged on the outer wall of the side pipe, the fixed pipe, the side pipe and a driving mechanism can be used for automatically realizing the rapid connection between the ton barrel and the crystallization melting desalination device, automatically opening the exhaust groove of the ton barrel and rapidly releasing the connection between the ton barrel and the crystallization melting desalination device after the extraction is completed, so that manual disassembly and assembly of workers are not needed, and the convenience of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, and particularly relates to a high-salinity wastewater low-temperature crystallization melting desalination device and method. BACKGROUND

[0002] The high-salinity wastewater low-temperature crystallization desalination device is a device for treating high-salinity wastewater and realizing salt crystallization and recovery. In some small or intermittent production, high-salinity wastewater is usually stored in ton barrels, and then the ton barrels are transported to the device for treatment. However, this traditional treatment method has some significant defects.

[0003] Firstly, although the flexibility of ton barrel storage and transportation is high, when replacing the ton barrel, manual disassembly and assembly are required to connect or separate the ton barrel and the connecting pipeline of the device. This process is not only cumbersome, but also requires the operator to be equipped with corresponding protective equipment such as gloves, goggles, and chemical protective clothing to prevent high-salinity wastewater from causing harm to the skin and eyes, which undoubtedly increases the complexity and labor intensity of the operation, prolongs the downtime of the device, and reduces the production efficiency.

[0004] In addition, during the manual disassembly and assembly process, due to the sealing of the ton barrel cover and the adaptability of the connecting pipeline, wastewater leakage is easy to occur, which not only causes material loss, but also threatens the safety of the operating environment and the operator.

[0005] In small or intermittent production scenarios, wastewater treatment demand is relatively small and discontinuous, so the device needs to be able to quickly respond and adapt to different treatment amounts. However, the traditional ton barrel replacement method cannot meet this flexibility requirement, and often requires a lot of time to prepare and replace the ton barrel, which cannot realize efficient and continuous wastewater treatment process.

[0006] Therefore, the high-salinity wastewater low-temperature crystallization melting desalination device and method are proposed to solve the above problems. SUMMARY

[0007] The purpose of the present application is to solve the defects in the background art, and the high-salinity wastewater low-temperature crystallization melting desalination device and method are proposed.

[0008] To achieve the above object, the technical scheme adopted by the present application is: the high-salinity wastewater low-temperature crystallization melting desalination device comprises a crystallization melting desalination device, a ton barrel, and a liquid pumping device arranged on the crystallization melting desalination device, the liquid pumping device is slidably connected to the side wall of the crystallization melting desalination device, a bottom frame is arranged beside the crystallization melting desalination device, a placing rack for placing the ton barrel is slidably connected to the bottom frame, two placing grooves matched with the ton barrel are arranged on the placing rack, a fixed pipe is fixedly connected to the liquid inlet end of the liquid pumping device, a side pipe is fixedly connected to the side wall of the fixed pipe, a conical sealing ring is arranged on the side wall of the fixed pipe, top grooves are formed in the upper and lower sides of the outer wall of the side pipe, upper rods are slidably connected to the inner sides of the top grooves, the upper rods are fixedly connected to the outer wall of the conical sealing ring, slide frames are fixedly connected to the upper and lower sides of the outer wall of the side pipe, positioning blocks are slidably connected to the inner sides of the slide frames, a positioning ring is fixedly connected to the outer wall of the drain pipe of the ton barrel, an exhaust mechanism is further arranged for automatically opening the exhaust of the ton barrel, and a driving mechanism is arranged on the side pipe for locking the conical sealing ring first and then unlocking the positioning blocks.

[0009] In the above technical scheme, further, a corrugated pipe is fixedly connected between the fixed pipe and the conical sealing ring, the positioning blocks are arranged on the inner side of the side pipe, bottom grooves are formed in the side walls of the slide frames, lower rods are fixedly connected to the inner positions of the bottom grooves with respect to the side walls of the positioning blocks, the positioning blocks are arranged obliquely on the side away from the fixed pipe, upper springs are fixedly connected between the inner walls of the slide frames and the side away from the positioning blocks, and lower springs are fixedly connected between the inner sides of the top grooves and the outer walls of the upper rods.

[0010] In the above technical scheme, further, three upper electric telescopic cylinders are fixedly connected to the inner side of the bottom frame, a lower plate is fixedly connected to the bottom end of the placing rack with respect to the inner side of the bottom frame, and the output ends of the three upper electric telescopic cylinders are fixedly connected to the side wall of the lower plate.

[0011] In the above technical scheme, further, the driving mechanism comprises a lower electric telescopic cylinder, a U-shaped frame is fixedly connected to the outer wall of the side pipe, a U-shaped plate is slidably connected to the inner side of the U-shaped frame, main plates and secondary plates are respectively fixedly connected to the two ends of the U-shaped plate, the lower electric telescopic cylinder is fixedly connected to the side wall of the U-shaped frame, the output end of the lower electric telescopic cylinder is fixedly connected to the side wall of the U-shaped plate through the inner side of the U-shaped frame, the side wall of the main plate is arranged obliquely, the side away from the secondary plates is arranged obliquely, the main plate is arranged beside the upper rod, and the secondary plates are arranged beside the slide frames.

[0012] In the above technical scheme, further, a rear plate is fixedly connected to the rear side of the crystallization melting desalination device, a pair of hydraulic telescopic cylinders are fixedly connected to the side wall of the rear plate, the output ends of the hydraulic telescopic cylinders are fixedly connected to the side wall of the liquid pumping device through the side wall of the rear plate, and a soft pipe is fixedly connected between the liquid outlet end of the liquid pumping device and the liquid inlet end of the crystallization melting desalination device.

[0013] Further in the technical scheme, the exhaust mechanism comprises an exhaust electric telescopic cylinder, the outer wall of the side pipe is fixedly connected with an L-shaped support, the liquid inlet end of the ton barrel is threadedly connected with a sealing cover, a exhaust groove is formed through the sealing cover, a sliding cavity is formed in the inner side of the exhaust groove, an L-shaped blocking plate is slidably connected in the sliding cavity, the exhaust electric telescopic cylinder is fixedly connected to the top end of the L-shaped support, a side groove is formed in the side wall of the L-shaped support, an exhaust plate is slidably connected in the side groove, the exhaust electric telescopic cylinder is fixedly connected to the side wall of the exhaust plate, and an annular groove is formed in the inner side of the side pipe.

[0014] Further in the technical scheme, three limiting springs are fixedly connected to the inner side of the sliding cavity, and the other ends of the three limiting springs are fixedly connected to the side wall of the L-shaped blocking plate.

[0015] Further in the technical scheme, the outer wall of the side pipe is fixedly connected with a liquid discharge pipe, the liquid discharge pipe is in communication with the inner side of the annular groove, the side wall of the L-shaped support is fixedly connected with a water pump, the other end of the liquid discharge pipe is fixedly connected to the liquid inlet end of the water pump, the liquid outlet end of the water pump is fixedly connected with a connecting pipe, the other end of the connecting pipe is fixedly connected to the side wall of the exhaust plate, and the outer walls of the liquid discharge pipe and the connecting pipe are fixedly connected to the outer wall of the L-shaped support.

[0016] The high-salinity wastewater low-temperature crystallization melting desalination method comprises the following steps:

[0017] Step one, placing the ton barrel on the placing rack by a forklift, and inserting the drain pipe on the ton barrel into the side pipe;

[0018] Step two, automatic docking, controlling the driving mechanism to tightly extrude the conical sealing ring in the drain pipe of the ton barrel to realize automatic docking, opening the exhaust of the ton barrel by the exhaust mechanism, opening the valve of the drain pipe on the ton barrel, and controlling the liquid pump to start to extract the high-salinity wastewater in the ton barrel;

[0019] Step three, preparing wastewater material, during the extraction of the high-salinity wastewater in the ton barrel, another ton barrel is forked to the placing rack, and then after the high-salinity wastewater in the ton barrel is extracted, the side pipe is switched to the other ton barrel to realize automatic docking.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. The present application can automatically realize the rapid connection between the ton barrel and the crystallization melting desalination device, automatically open the exhaust groove of the ton barrel, and quickly disconnect the two after the extraction is completed, so that manual disassembly is not required, and the convenience of the device is greatly improved.

[0022] 2、The present application can place another ton barrel on the other side of the rack during the extraction of high-salt wastewater, so that the crystallization melting desalination device can be quickly connected with another ton barrel after the previous ton barrel is extracted, saving the time of material replacement and improving the processing efficiency of high-salt wastewater.

[0023] 3、The present application can catch the outflowing high-salt wastewater when the conical sealing ring is pulled out from the ton barrel drain pipe, and can extract the high-salt wastewater and discharge it into the current ton barrel, so as to avoid the influence on the equipment caused by dripping around the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front perspective structural schematic diagram of the melting desalination equipment of the present application;

[0025] Figure 2 It is a rear perspective structural schematic diagram of the melting desalination equipment of the present application;

[0026] Figure 3 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application;

[0027] Figure 4 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application; Figure 3 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application;

[0028] Figure 5 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application; Figure 3 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application;

[0029] Figure 6 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application;

[0030] Figure 7 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application;

[0031] Figure 8 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application;

[0032] Figure 9 It is a rear perspective structural schematic diagram of the ton barrel, fixed pipe and L-shaped support of the present application;

[0033] In the figure: 1, crystallization melting desalting device; 2, liquid pump; 3, bottom frame; 4, ton barrel; 5, rack; 6, upper electric telescopic cylinder; 7, lower plate; 8, fixed pipe; 9, side pipe; 10, corrugated pipe; 11, conical sealing ring; 12, top groove; 13, upper rod; 14, sliding frame; 15, positioning block; 16, positioning ring; 17, lower rod; 18, upper spring; 19, lower spring; 20, lower electric telescopic cylinder; 21, U-shaped frame; 22, U-shaped plate; 23, main plate; 24, secondary plate; 25, rear plate; 26, hydraulic telescopic cylinder; 27, exhaust electric telescopic cylinder; 28, L-shaped support; 29, sealing cover; 30, L-shaped sealing plate; 31, exhaust plate; 32, annular groove; 33, liquid discharge pipe; 34, limit spring; 35, water pump; 36, exhaust groove; 37, hose; 38, connecting pipe. DETAILED DESCRIPTION

[0034] In order to enable more clear understanding of the above-mentioned objects, features and advantages of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0035] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed below.

[0036] In actual use, it is found that when replacing the ton barrel 4, manual disassembly is required to connect or separate the ton barrel 4 and the connecting pipe of the equipment, this process is not only cumbersome, but also requires the operator to be equipped with corresponding protective tools such as gloves, goggles, and chemical protective clothing, in order to prevent high-salt wastewater from causing harm to the skin, eyes, etc., which undoubtedly increases the complexity and labor intensity of the operation, at the same time, also prolongs the downtime of the equipment, reduces the production efficiency, in order to solve the above problems, the following structure is invented.

[0037] As Figures 1-9The illustrated high-salinity wastewater low-temperature crystallization desalination device includes a crystallization desalination device 1 and a ton barrel 4, and a liquid pumping pump 2 arranged on the crystallization desalination device 1. The crystallization desalination device 1 mainly uses the liquid pumping pump 2 to pump the high-salinity wastewater in the ton barrel 4 into the crystallization desalination device 1. In a low-temperature environment, the salt crystallizes and separates out due to the decrease in solubility. After the crystallized salt is removed by centrifugal separation, the mother liquor can be returned to the evaporation system for further treatment. Finally, the crystallized salt is dried and packaged for recycling, achieving wastewater reduction and salt resource utilization. The liquid pumping pump 2 is slidingly connected to the side wall of the crystallization desalination device 1. A bottom frame 3 is arranged beside the crystallization desalination device 1. A placement rack 5 for placing the ton barrel 4 is slidingly connected to the bottom frame 3. Two placement grooves compatible with the ton barrel 4 are arranged on the placement rack 5. The liquid inlet end of the liquid pumping pump 2 is fixedly connected to a fixed tube 8. The side wall of the fixed tube 8 is fixedly connected to a side tube 9. The side wall of the fixed tube 8 is provided with a conical sealing ring 11. Top grooves 12 are formed on the upper and lower sides of the outer wall of the side tube 9. Upper rods 13 are slidingly connected in the top grooves 12. The upper rods 13 are fixedly connected to the outer wall of the conical sealing ring 11. The outer wall of the side tube 9 is fixedly connected to sliding frames 14 on the upper and lower sides. Positioning blocks 15 are slidingly connected to the inner sides of the sliding frames 14. A positioning ring 16 is fixedly connected to the outer wall of the drain pipe of the ton barrel 4. An exhaust mechanism is further arranged to automatically open the exhaust of the ton barrel 4. A driving mechanism is arranged on the side tube 9 to first lock the conical sealing ring 11 and then unlock the positioning block 15.

[0038] A corrugated pipe 10 is fixedly connected between the fixed tube 8 and the conical sealing ring 11 to avoid hindering the normal expansion and contraction of the conical sealing ring 11. The positioning blocks 15 are arranged on the inner side of the side tube 9. Bottom grooves are formed in the side walls of the sliding frames 14. Lower rods 17 are fixedly connected to the side walls of the positioning blocks 15 relative to the positions in the bottom grooves. The side away from the fixed tube 8 of the positioning block 15 is inclined. Upper springs 18 are fixedly connected between the inner side of the top groove 12 and the outer wall of the upper rod 13.

[0039] The driving mechanism includes a lower electric telescopic cylinder 20. A U-shaped frame 21 is fixedly connected to the outer wall of the side tube 9. A U-shaped plate 22 is slidingly connected to the inner side of the U-shaped frame 21. Main plates 23 and secondary plates 24 are fixedly connected to the two ends of the U-shaped plate 22. The lower electric telescopic cylinder 20 is fixedly connected to the side wall of the U-shaped frame 21. The output end of the lower electric telescopic cylinder 20 is fixedly connected to the side wall of the U-shaped plate 22 through the inner side of the U-shaped frame 21. The side wall of the main plate 23 is inclined. The side away from each other between the secondary plates 24 is inclined. The main plate 23 is arranged beside the upper rod 13. The secondary plate 24 is arranged beside the sliding frame 14.

[0040] In the treatment of high-salt wastewater, firstly, the ton barrel 4 storing high-salt wastewater is placed on the placing rack 5 by a forklift (it should be pointed out here that the groove on the placing rack 5 is matched with the ton barrel 4 and can position the ton barrel 4 to ensure the accurate docking of the drain pipe of the ton barrel 4 with the side pipe 9), and in the process of placing the ton barrel 4, the drain pipe of the ton barrel 4 needs to be inserted into the side pipe 9 (this operation can be improved later), in the process of inserting the drain pipe of the ton barrel 4, the side wall of the positioning ring 16 on the drain pipe of the ton barrel 4 will extrude the inclined surface of the positioning block 15, so that the positioning block 15 slides into the sliding frame 14 and compresses the upper spring 18, and then when the positioning block 15 moves away from the positioning ring 16, the extrusion on the positioning block 15 will be released, and then the positioning block 15 will be pushed to be clamped on the side wall of the positioning ring 16 under the elastic force of the upper spring 18 (through the arrangement of the positioning block 15, the displacement of the ton barrel 4 can be avoided to affect the sealing of the connection between the ton barrel 4 and the side pipe 9), at this time, the ton barrel 4 is completely placed in the placing rack 5;

[0041] Then the electric telescopic cylinder 20 can be controlled to start to drive the U-shaped plate 22, the main plate 23 and the secondary plate 24 to move, and then the main plate 23 moves to the side of the upper rod 13, and then the inclined surface of the side wall of the main plate 23 extrudes the upper rod 13 to make the upper rod 13 slide in the top groove 12 and compress the lower spring 19, and drive the conical sealing ring 11 and the bellows 10 to move (it should be pointed out here that the transverse sliding of the upper rod 13 in the top groove 12 plays a guiding role to ensure the alignment of the conical sealing ring 11 with the drain pipe of the ton barrel 4), and then the upper rod 13 extrudes the side wall of the main plate 23 and extrudes the conical sealing ring 11 to be tightly inserted in the drain pipe of the ton barrel 4, so as to realize the automatic sealing connection between the two, and then the valve on the drain pipe of the ton barrel 4 can be opened, and the liquid pump 2 can be controlled to start to extract the high-salt wastewater in the ton barrel 4 into the crystallization melting desalination device 1 for low-temperature desalination treatment.

[0042] As described above, through the design of the above structure, the quick connection between the ton barrel 4 and the crystallization melting desalination device 1 can be automatically realized, and after the extraction is completed, the connection between the two can be quickly released, so that workers do not need to manually disassemble and assemble, which greatly improves the convenience of the device.

[0043] On the basis of the above embodiment, it is found that if only one ton barrel 4 can be quickly docked, the ton barrel 4 needs to be removed for extraction, and a new ton barrel 4 needs to be placed for docking, which takes a long time and wastes the treatment efficiency of high-salt wastewater. In order to solve the above problem, the above structure is further improved.

[0044] The three upper electric telescopic cylinders 6 are fixedly connected to the inner side of the bottom frame 3, the bottom end of the placing rack 5 is fixedly connected to the inner side of the bottom frame 3, and the output ends of the three upper electric telescopic cylinders 6 are fixedly connected to the side wall of the lower plate 7;

[0045] The rear side of the crystallization melting desalter 1 is fixedly connected with a rear plate 25, and a pair of hydraulic telescopic cylinders 26 are fixedly connected with the side wall of the rear plate 25. The output ends of the hydraulic telescopic cylinders 26 are fixedly connected with the side wall of the liquid pumping pump 2 through the side wall of the rear plate 25. A hose 37 is fixedly connected between the liquid outlet end of the liquid pumping pump 2 and the liquid inlet end of the crystallization melting desalter 1.

[0046] In the process of pumping the high-salinity wastewater in the previous ton barrel 4, another ton barrel 4 can be placed on the other side of the placing rack 5 by a forklift truck. After the previous ton barrel 4 is pumped, the lower electric telescopic cylinder 20 is controlled to continue to be started to drive the U-shaped plate 22 to continue to move. At this time, the upper rod 13 slides on the side wall of the main plate 23. Then, the secondary plate 24 moves below the lower rod 17. The lower rod 17 is gradually pressed to move away from the side by the inclined surface of the secondary plate 24. The positioning block 15 slides in the sliding frame 14 and the upper spring 18 is compressed. Then, the positioning block 15 is pushed away from the positioning ring 16 to release the position limitation of the side pipe 9. Then, the upper electric telescopic cylinder 6 is controlled to be started to drive the lower plate 7 and the placing rack 5 to move away from the crystallization melting desalter 1. Then, the drain pipe on the ton barrel 4 is pulled out of the side pipe 9.

[0047] Then, the hydraulic telescopic cylinder 26 is controlled to be started to drive the liquid pumping pump 2 to move and drive the fixed pipe 8, the side pipe 9 and the conical sealing ring 11 to move. The side pipe 9 moves to the side of another ton barrel 4. Then, the upper electric telescopic cylinder 6 is controlled to be started to reset. The drain pipe on the corresponding ton barrel 4 is inserted into the side pipe 9. Then, the lower electric telescopic cylinder 20 is controlled to be started to repeat the above operation. Thus, the two are connected. Finally, the forklift truck forks away the empty ton barrel 4 and puts a new ton barrel 4.

[0048] In summary, through the design of the above structure, another ton barrel 4 can be placed on the other side of the placing rack 5 during the pumping of the high-salinity wastewater. Thus, after the previous ton barrel 4 is pumped, the crystallization melting desalter 1 can be quickly connected with another ton barrel 4. The time for changing the material is saved, and the processing efficiency of the high-salinity wastewater is improved.

[0049] On the basis of the above embodiment, it is found that when the ton barrel 4 is connected with the crystallization melting desalter 1, the worker still opens the cover on the ton barrel 4 to ensure that the high-salinity wastewater in the ton barrel 4 can be quickly pumped out. It is troublesome. The above structure is further improved to solve the above problem.

[0050] The exhaust mechanism comprises an exhaust electric telescopic cylinder 27, an L-shaped support 28 is fixedly connected to the outer wall of the side pipe 9, a sealing cover 29 is threadedly connected to the liquid inlet end of the ton barrel 4, an exhaust groove 36 is formed through the sealing cover 29, a sliding cavity is formed in the inner side of the exhaust groove 36, an L-shaped blocking plate 30 is slidably connected to the inner side of the sliding cavity (it should be noted that, by arranging threads on the ton barrel 4, the L-shaped blocking plate 30 is located on one side of the L-shaped support 28 after the sealing cover 29 is tightened, thereby ensuring the normal opening of the exhaust groove 36 in the future, and the forklift worker also needs to pay attention to this point during placement, and the L-shaped blocking plate 30 needs to be placed towards the crystallization melting desalter 1 side to ensure the normal operation of the subsequent work), the exhaust electric telescopic cylinder 27 is fixedly connected to the top end of the L-shaped support 28, a side groove is formed in the side wall of the L-shaped support 28, an exhaust plate 31 is slidably connected to the inner side of the side groove, and the exhaust electric telescopic cylinder 27 is fixedly connected to the side wall of the exhaust plate 31; an annular groove 32 is formed in the inner side of the side pipe 9;

[0051] Three limiting springs 34 are fixedly connected to the inner side of the sliding cavity, and the other ends of the three limiting springs 34 are fixedly connected to the side wall of the L-shaped blocking plate 30.

[0052] When the control lower electric telescopic cylinder 20 is started to realize the connection of the two, the exhaust electric telescopic cylinder 27 can be controlled to start and drive the exhaust plate 31 to move, thereby pushing the L-shaped blocking plate 30 to slide in the sliding cavity through the exhaust plate 31, compressing the limiting spring 34, and gradually opening the exhaust groove 36, thereby realizing the automatic opening of the exhaust groove 36, ensuring the normal entry of external air during the operation of the liquid pumping pump 2, avoiding the negative pressure state in the ton barrel 4, and affecting the normal discharge of the high-salt wastewater.

[0053] As described above, through the design of the above structure, the exhaust groove 36 of the ton barrel 4 can be automatically opened, and workers do not need to frequently unscrew the cover on the ton barrel 4, thereby further improving the convenience of the device.

[0054] On the basis of the above embodiment, it is found that when the conical sealing ring 11 is pulled out of the drain pipe on the ton barrel 4, a part of the high-salt wastewater in the drain pipe will be blocked by the conical sealing ring 11, and therefore some wastewater will remain in the drain pipe (it should be noted that a small amount of wastewater remains in the ton barrel 4, which can be ignored compared to the total volume of the ton barrel 4, and the remaining wastewater can be brought into the new treatment process when the ton barrel 4 is recycled, which will not interfere with the treatment of the newly added wastewater, so it will not affect the treatment effect and fully meet the environmental protection requirements, and the recycling of the ton barrel 4 can be smoothly implemented), thereby causing the wastewater to flow to the ground after the conical sealing ring 11 is pulled out. However, the leakage of high-salt wastewater will pose a threat to the operating environment and the safety of the operators, and therefore the above structure is further improved to solve the above problem.

[0055] The outer wall of the side pipe 9 is fixedly connected with a drain pipe 33, and the drain pipe 33 is communicated with the inner side of the annular groove 32. The side wall of the L-shaped support 28 is fixedly connected with a water pump 35. The other end of the drain pipe 33 is fixedly connected with the liquid inlet end of the water pump 35. The liquid outlet end of the water pump 35 is fixedly connected with a connecting pipe 38. The other end of the connecting pipe 38 is fixedly connected with the side wall of the exhaust plate 31. The outer walls of the drain pipe 33 and the connecting pipe 38 are fixedly connected with the outer wall of the L-shaped support 28. However, a part of the connecting pipe 38 close to the exhaust plate 31 cannot be fixedly connected with the inner side of the L-shaped support 28, so that the connecting pipe 38 can be pulled and moved when the exhaust plate 31 moves.

[0056] When the drain pipe of the ton barrel 4 is pulled out of the conical sealing ring 11, the residual high-salt wastewater in the drain pipe of the ton barrel 4 can drop into the annular groove 32. At this time, the water pump 35 can be controlled to start, and the high-salt wastewater collected in the annular groove 32 can be pumped out through the drain pipe 33, and then transferred into the connecting pipe 38, and then discharged from the other end of the connecting pipe 38 into the exhaust groove 36 and into the ton barrel 4 (during the separation process, it should be noted that the exhaust electric telescopic cylinder 27 needs to be controlled to continue to start, so that the exhaust plate 31 moves with the ton barrel 4, and the connecting pipe 38 moves at the same time, so that the discharged high-salt wastewater can be discharged into the ton barrel 4). At this time, a period of time is needed to control the electric telescopic cylinder 6 to start and completely push the drain pipe of the ton barrel 4 out of the side pipe 9.

[0057] In summary, through the design of the above structure, when the conical sealing ring 11 is pulled out of the drain pipe of the ton barrel 4, the high-salt wastewater flowing out can be caught by the annular groove 32, and the high-salt wastewater can be pumped out and discharged into the current ton barrel 4, so that the equipment around can be avoided.

[0058] The low-temperature crystallization melting desalination method of high-salt wastewater comprises the following steps:

[0059] Step one, barrel loading, first put the ton barrel 4 on the placing rack 5 by a forklift, and insert the drain pipe of the ton barrel 4 into the side pipe 9;

[0060] Step two, automatic butt joint, control the driving mechanism to extrude the conical sealing ring 11 tightly in the drain pipe of the ton barrel 4, so as to realize automatic butt joint of the two, and open the exhaust of the ton barrel 4 through the exhaust mechanism, then open the valve of the drain pipe of the ton barrel 4, and control the liquid pump 2 to start to extract the high-salt wastewater in the ton barrel 4;

[0061] Step three, preparation of wastewater material, during the extraction of the high-salt wastewater in the ton barrel 4, another ton barrel 4 can be forked to the placing rack 5, and then after the high-salt wastewater in the front ton barrel 4 is extracted, the side pipe 9 is switched to the other ton barrel 4 for automatic butt joint.

[0062] The foregoing shows and describes the basic principles, main features and advantages of the present application.

[0063] Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A high-salinity wastewater low-temperature crystallization melting desalination device, comprising a crystallization melting desalination device (1) and a ton barrel (4), and a liquid pumping device (2) arranged on the crystallization melting desalination device (1), characterized in that: The liquid pump (2) is slidably connected to the side wall of the crystallization melting desalting device (1), a bottom frame (3) is arranged beside the crystallization melting desalting device (1), a placing rack (5) for placing a ton barrel (4) is slidably connected to the bottom frame (3), two placing grooves matched with the ton barrel (4) are arranged on the placing rack (5), a fixed pipe (8) is fixedly connected to the liquid inlet end of the liquid pump (2), a side pipe (9) is fixedly connected to the side wall of the fixed pipe (8), a conical sealing ring (11) is arranged on the side wall of the fixed pipe (8), top grooves (12) are formed in the upper and lower sides of the outer wall of the side pipe (9), upper rods (13) are slidably connected in the top grooves (12), the upper rods (13) are fixedly connected to the outer wall of the conical sealing ring (11), slide frames (14) are fixedly connected to the upper and lower sides of the outer wall of the side pipe (9), positioning blocks (15) are slidably connected to the inner sides of the slide frames (14), a positioning ring (16) is fixedly connected to the outer wall of the drain pipe of the ton barrel (4), an exhaust mechanism for automatically opening the exhaust of the ton barrel (4) is further arranged, and a driving mechanism is arranged on the side pipe (9) for locking the conical sealing ring (11) first and then unlocking the positioning block (15). ​ A corrugated pipe (10) is fixedly connected between the fixed pipe (8) and the conical sealing ring (11), the positioning blocks (15) are arranged on the inner side of the side pipe (9) in proximity, bottom grooves are formed in the side walls of the slide frames (14), lower rods (17) are fixedly connected to the side walls of the positioning blocks (15) relative to the positions in the bottom grooves, the positioning blocks (15) are arranged in an inclined manner away from the fixed pipe (8), upper springs (18) are fixedly connected between the inner walls of the slide frames (14) and the sides of the positioning blocks (15) away from each other, and lower springs (19) are fixedly connected between the inner sides of the top grooves (12) and the outer walls of the upper rods (13). Three upper electric telescopic cylinders (6) are fixedly connected to the inner side of the bottom frame (3), a lower plate (7) is fixedly connected to the bottom end of the placing rack (5) relative to the position of the inner side of the bottom frame (3), and the output ends of the three upper electric telescopic cylinders (6) are fixedly connected to the side wall of the lower plate (7). The driving mechanism comprises a lower electric telescopic cylinder (20), a U-shaped frame (21) is fixedly connected to the outer wall of the side pipe (9), a U-shaped plate (22) is slidably connected to the inner side of the U-shaped frame (21), main plates (23) and secondary plates (24) are fixedly connected to the two ends of the U-shaped plate (22) respectively, the lower electric telescopic cylinder (20) is fixedly connected to the side wall of the U-shaped frame (21), the output end of the lower electric telescopic cylinder (20) penetrates through the inner side of the U-shaped frame (21) and is fixedly connected to the side wall of the U-shaped plate (22), the side wall of the main plate (23) is arranged in an inclined manner, the sides of the secondary plates (24) away from each other are arranged in an inclined manner, the main plate (23) is arranged beside the upper rod (13), and the secondary plate (24) is arranged beside the slide frame (14). The back plate (25) is fixedly connected with the back side of the crystallization melting desalter (1), and a pair of hydraulic telescopic cylinders (26) are fixedly connected with the side wall of the back plate (25). The output end of the hydraulic telescopic cylinder (26) is fixedly connected with the side wall of the liquid pumping pump (2) through the side wall of the back plate (25). The liquid outlet end of the liquid pumping pump (2) is fixedly connected with the liquid inlet end of the crystallization melting desalter (1) through a hose (37).

2. The low-temperature crystallization melt desalination device for high-salinity wastewater according to claim 1, characterized in that: The exhaust mechanism comprises an exhaust electric telescopic cylinder (27), an L-shaped support (28) is fixedly connected with the outer wall of the side pipe (9), a sealing cover (29) is threadedly connected with the liquid inlet end of the ton barrel (4), an exhaust groove (36) is formed through the sealing cover (29), a sliding cavity is formed in the inner side of the exhaust groove (36), an L-shaped blocking plate (30) is slidably connected with the inner side of the sliding cavity, the exhaust electric telescopic cylinder (27) is fixedly connected with the top end of the L-shaped support (28), a side groove is formed in the side wall of the L-shaped support (28), an exhaust plate (31) is slidably connected with the inner side of the side groove, the exhaust electric telescopic cylinder (27) is fixedly connected with the side wall of the exhaust plate (31), and an annular groove (32) is formed in the inner side of the side pipe (9).

3. The low-temperature crystallization melt desalination device for high-salinity wastewater according to claim 2, characterized in that: Three limiting springs (34) are fixedly connected with the inner side of the sliding cavity, and the other ends of the three limiting springs (34) are fixedly connected with the side wall of the L-shaped blocking plate (30).

4. The low-temperature crystallization melt desalination device for high-salinity wastewater according to claim 2, characterized in that: A liquid discharging pipe (33) is fixedly connected with the bottom end of the outer wall of the side pipe (9), and the liquid discharging pipe (33) is in communication with the inner side of the annular groove (32). A water pumping pump (35) is fixedly connected with the side wall of the L-shaped support (28), the other end of the liquid discharging pipe (33) is fixedly connected with the liquid inlet end of the water pumping pump (35), the liquid outlet end of the water pumping pump (35) is fixedly connected with a connecting pipe (38), the other end of the connecting pipe (38) is fixedly connected with the side wall of the exhaust plate (31), and the outer walls of the liquid discharging pipe (33) and the connecting pipe (38) are fixedly connected with the outer wall of the L-shaped support (28).

5. The method for low-temperature crystallization and thawing desalination of high-salinity wastewater, which is suitable for the device for low-temperature crystallization and thawing desalination of high-salinity wastewater according to any one of claims 1-4, characterized in that, The method comprises the following steps: Step one, placing the ton barrel (4) on the placing rack (5) by a forklift, and inserting the drain pipe on the ton barrel (4) into the side pipe (9); Step two, automatic butt joint, controlling the driving mechanism to tightly extrude the conical sealing ring (11) in the drain pipe of the ton barrel (4) to realize automatic butt joint, opening the exhaust of the ton barrel (4) through the exhaust mechanism, opening the valve of the drain pipe on the ton barrel (4), and controlling the liquid pumping pump (2) to start pumping the high-salt wastewater in the ton barrel (4); Step three, preparing wastewater material, during the pumping of the high-salt wastewater in the ton barrel (4), another ton barrel (4) is forked to the placing rack (5), and then after the high-salt wastewater in the ton barrel (4) is pumped, the side pipe (9) is switched to the other ton barrel (4) for automatic butt joint.

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